US5937664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery cooling system for vehicle
Assignee: Toyota Motor Corp
•
Filing: 1998-03-03
•
Granted: 1999-08-17
•
Expires: 2018-03-03
Abstract
Abstract A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, includes: a battery chamber for accommodating the battery; a cooling device having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of the battery chamber by the cooling fan; a cooling-air circulating device for circulating air used in cooling the battery between the battery chamber and the vehicle compartment by guiding the air into the vehicle compartment; an exhausting device for exhausting the air used in cooling the battery to outside the vehicle; a changeover device for effecting a changeover between the cooling-air circulating device and the exhausting device; a temperature detecting device for detecting at least one of a temperature of the interior of the battery chamber and a temperature of the battery; and a changeover controlling device for selecting the exhausting device by the changeover device when the temperature detected by the temperature detecting device has become greater than or equal to a predetermined value.
Inventors
- 👤 Takayoshi Matsuno
- 👤 Shunkichi Suzaki
- 👤 Kiwamu Inui
- 👤 Makoto Mimoto
- 👤 Yoshiaki Kikuchi
- 👤 Toyohiko Etoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:19
CPC Classifications
B; B60; B60L; B60L1/00; B60L1/02; B60L1/04; B60L1/06; B60L1/08; B60H; B60H1/00; B60H1/00271; B60H1/00278; B60K; B60K1/00; B60K1/04; B60L1/003; B60L3/00; B60L3/0023; B60L3/0046; B60L50/00; B60L50/50; B60L50/60; B60L50/66; B60L58/00; B60L58/10; B60L58/12; B60L58/24; B60L58/26; H; H01; H01M; H01M10/00; H01M10/60; H01M10/61; H01M10/613; H01M10/62; H01M10/625; H01M10/65; H01M10/656; H01M10/6561; H01M10/6563; H01M10/6565; H01M10/6566; H01M10/66; H01M10/663; B60H2001/003; B60K11/00; B60K11/02; B60L2240/00; B60L2240/10; B60L2240/34; B60L2240/36; B60L2240/40; B60L2240/54; B60L2240/545; B60L2240/60; B60L2240/66; B60L2240/662; B60L2240/80; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/72; Y02T90/00; Y02T90/10; Y02T90/16
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
185 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; cooling means having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; cooling-air circulating means for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; exhausting means for exhausting the air used in cooling the battery to outside the vehicle; changeover means for effecting a changeover between said cooling-air circulating means and said exhausting means; temperature detecting means for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery; and changeover controlling means for selecting said exhausting means by said changeover means when the temperature detected by said temperature detecting means has become greater than or equal to a predetermined value.
Claim 2
Dependent Claim
185 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; cooling means having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; cooling-air circulating means for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; exhausting means for exhausting the air used in cooling the battery to outside the vehicle; changeover means for effecting a changeover between said cooling-air circulating means and said exhausting means; temperature detecting means for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery; and changeover controlling means for selecting said exhausting means by said changeover means when the temperature detected by said temperature detecting means has become greater than or equal to a predetermined value.
Claim 3
Dependent Claim
54 words
A vehicle-use battery cooling system according to claim 1, further comprising: circulating-volume increasing means for increasing a volume of air to be circulated into the vehicle compartment by said cooling-air circulating means when a volume of air being delivered by said cooling fan of said cooling means is at a predetermined level or more.
Claim 4
Dependent Claim
25 words
A vehicle-use battery cooling system according to claim 2, wherein said circulating-volume increasing means selects said cooling-air circulating means by means of said changeover means.
Claim 5
Dependent Claim
91 words
A vehicle-use battery cooling system according to claim 1, further comprising: comparing means for comparing a volume of air delivered from outside the vehicle into the vehicle compartment by a blower fan provided in said air conditioner and a volume of air delivered by said cooling fan; and circulating-volume increasing means for increasing a volume of air to be circulated into the vehicle compartment by said cooling-air circulating means when the volume of air being delivered by said cooling fan is greater as a result of comparison by said comparing means.
Claim 6
Dependent Claim
25 words
A vehicle-use battery cooling system according to claim 4, wherein said circulating-volume increasing means selects said cooling-air circulating means by means of said changeover means.
Claim 7
Dependent Claim
35 words
A vehicle-use battery cooling system according to claim 1, further comprising: air-conditioning load determining means for determining an air conditioning load required for said air conditioner in air conditioning an interior of the vehicle compartment.
Claim 8
Dependent Claim
49 words
A vehicle-use battery cooling system according to claim 6, wherein said air-conditioning load determining means determines the air conditioning load by making a comparison between the temperature of the interior of the vehicle compartment detected by said temperature detecting means and a set temperature set in said air conditioner.
Claim 9
Dependent Claim
38 words
A vehicle-use battery cooling system according to claim 1, further comprising: increase-rate determining means for determining an increase rate of the temperature of the battery on the basis of a result of detection by said temperature detecting means.
Claim 10
Dependent Claim
199 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; cooling means having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; cooling-air circulating means for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; exhausting means for exhausting the air used in cooling the battery to outside the vehicle; changeover means for effecting a changeover between said cooling-air circulating means and said exhausting means; battery-residual-capacity detecting means for detecting a residual capacity of the battery; battery-residual-capacity determining means for determining whether or not the detected residual capacity is within a predetermined range set in advance; and exhaust controlling means for selecting said exhausting means by means of said changeover means and operating said cooling means when it is determined by said battery-residual-capacity determining means that the detected residual capacity is outside the predetermined range.
Claim 11
Dependent Claim
199 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; cooling means having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; cooling-air circulating means for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; exhausting means for exhausting the air used in cooling the battery to outside the vehicle; changeover means for effecting a changeover between said cooling-air circulating means and said exhausting means; battery-residual-capacity detecting means for detecting a residual capacity of the battery; battery-residual-capacity determining means for determining whether or not the detected residual capacity is within a predetermined range set in advance; and exhaust controlling means for selecting said exhausting means by means of said changeover means and operating said cooling means when it is determined by said battery-residual-capacity determining means that the detected residual capacity is outside the predetermined range.
Claim 12
Dependent Claim
36 words
A vehicle-use battery cooling system according to claim 9, wherein said exhaust controlling means requests said air conditioner to introduce outside air into the vehicle compartment irrespective of a state of operation of said air conditioner.
Claim 13
Dependent Claim
35 words
A vehicle-use battery cooling system according to claim 9, further comprising: temperature detecting means for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery.
Claim 14
Dependent Claim
55 words
A vehicle-use battery cooling system according to claim 11, further comprising: battery-temperature determining means for determining whether or not the temperature detected by said temperature detecting means is higher than a predetermined value when it is determined by said battery-residual-capacity determining means that the detected residual capacity is within the predetermined range set in advance.
Claim 15
Dependent Claim
186 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; cooling means having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; cooling-air circulating means for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; exhausting means for exhausting the air used in cooling the battery to outside the vehicle; changeover means for effecting a changeover between said cooling-air circulating means and said exhausting means; air-conditioning load determining means for determining an air conditioning load required for said air conditioner in air conditioning an interior of the vehicle compartment; and cooling controlling means for stopping the operation of said cooling fan when it is determined by said air-conditioning load determining means that the air conditioning load is greater than a predetermined value.
Claim 16
Dependent Claim
186 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; cooling means having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; cooling-air circulating means for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; exhausting means for exhausting the air used in cooling the battery to outside the vehicle; changeover means for effecting a changeover between said cooling-air circulating means and said exhausting means; air-conditioning load determining means for determining an air conditioning load required for said air conditioner in air conditioning an interior of the vehicle compartment; and cooling controlling means for stopping the operation of said cooling fan when it is determined by said air-conditioning load determining means that the air conditioning load is greater than a predetermined value.
Claim 17
Dependent Claim
25 words
A vehicle-use battery cooling system according to claim 13, further comprising: vehicle-compartment-temperature detecting means for detecting a temperature of the interior of the vehicle compartment.
Claim 18
Dependent Claim
49 words
A vehicle-use battery cooling system according to claim 14, wherein said air-conditioning load determining means determines the air conditioning load by making a comparison between the temperature of the interior of the vehicle compartment detected by said temperature detecting means and a set temperature set in said air conditioner.
Claim 19
Dependent Claim
72 words
A vehicle-use battery cooling system according to claim 15, wherein said air-conditioning load determining means determines that the air conditioning load is large when a difference between the temperature of the interior of the vehicle compartment detected by said vehicle-compartment-temperature detecting means and the set temperature is large, and when the temperature of delivered air which is delivered from said air conditioner into the vehicle compartment is lower than a predetermined value.
Claim 20
Dependent Claim
35 words
A vehicle-use battery cooling system according to claim 13, further comprising: temperature detecting means for detecting at least one of the temperature of the interior of said battery chamber and a temperature of said battery.
Claim 21
Dependent Claim
33 words
A vehicle-use battery cooling system according to claim 17, further comprising: temperature determining means for determining whether or not the temperature detected by said temperature detecting means is higher than a predetermined temperature.
Claim 22
Dependent Claim
206 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; cooling means having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; cooling-air circulating means for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; exhausting means for exhausting the air used in cooling the battery to outside the vehicle; changeover means for effecting a changeover between said cooling-air circulating means and said exhausting means; temperature detecting means for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery; increase-rate determining means for determining an increase rate of the temperature of the battery on the basis of a result of detection by said temperature detecting means; and changeover controlling means for selecting said exhausting means by said changeover means on the basis of a result of determination by said increase-rate determining means.
Claim 23
Dependent Claim
206 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; cooling means having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; cooling-air circulating means for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; exhausting means for exhausting the air used in cooling the battery to outside the vehicle; changeover means for effecting a changeover between said cooling-air circulating means and said exhausting means; temperature detecting means for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery; increase-rate determining means for determining an increase rate of the temperature of the battery on the basis of a result of detection by said temperature detecting means; and changeover controlling means for selecting said exhausting means by said changeover means on the basis of a result of determination by said increase-rate determining means.
Claim 24
Dependent Claim
33 words
A vehicle-use battery cooling system according to claim 19, wherein said increase-rate determining means changes a criterion for determining the increase rate in correspondence with the temperature detected by said temperature detecting means.
Claim 25
Dependent Claim
192 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle; a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct; a temperature detecting sensor for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery; and changeover controlling means for changing said changeover damper over to an exhausting duct side when the temperature detected by said temperature detecting sensor has become greater than or equal to a predetermined value.
Claim 26
Dependent Claim
192 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle; a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct; a temperature detecting sensor for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery; and changeover controlling means for changing said changeover damper over to an exhausting duct side when the temperature detected by said temperature detecting sensor has become greater than or equal to a predetermined value.
Claim 27
Dependent Claim
59 words
A vehicle-use battery cooling system according to claim 21, further comprising: circulating-volume increasing means for increasing a volume of air to be blown to said cooling-air circulating duct and increasing a volume of air to be circulated into the vehicle compartment when a volume of air being delivered by said cooling fan is at a predetermined level or more.
Claim 28
Dependent Claim
25 words
A vehicle-use battery cooling system according to claim 22, wherein said circulating-volume increasing means selects said cooling-air circulating duct by means of said changeover damper.
Claim 29
Dependent Claim
91 words
A vehicle-use battery cooling system according to claim 21, further comprising: comparing means for comparing a volume of air delivered from outside the vehicle into the vehicle compartment by a blower fan provided in said air conditioner and a volume of air delivered by said cooling fan; and circulating-volume increasing means for increasing a volume of air to be circulated into the vehicle compartment by said cooling-air circulating duct when the volume of air being delivered by said cooling fan is greater as a result of comparison by said comparing means.
Claim 30
Dependent Claim
24 words
A vehicle-use battery cooling system according to claim 24, wherein said circulating-volume increasing means changes said changeover damper over to an exhausting duct side.
Claim 31
Dependent Claim
35 words
A vehicle-use battery cooling system according to claim 21, further comprising: air-conditioning load determining means for determining an air conditioning load required for said air conditioner in air conditioning an interior of the vehicle compartment.
Claim 32
Dependent Claim
49 words
A vehicle-use battery cooling system according to claim 26, wherein said air-conditioning load determining means determines the air conditioning load by making a comparison between the temperature of the interior of the vehicle compartment detected by said temperature detecting sensor and a set temperature set in said air conditioner.
Claim 33
Dependent Claim
38 words
A vehicle-use battery cooling system according to claim 21, further comprising: increase-rate determining means for determining an increase rate of the temperature of the battery on the basis of a result of detection by said temperature detecting sensor.
Claim 34
Dependent Claim
204 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle; a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct; a battery-residual-capacity detecting sensor for detecting a residual capacity of the battery; battery-residual-capacity determining means for determining whether or not the detected residual capacity is within a predetermined range set in advance; and exhaust controlling means for changing said changeover damper over to an exhausting duct side and operating said cooling fan when it is determined by said battery-residual-capacity determining means that the detected residual capacity is outside the predetermined range.
Claim 35
Dependent Claim
204 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle; a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct; a battery-residual-capacity detecting sensor for detecting a residual capacity of the battery; battery-residual-capacity determining means for determining whether or not the detected residual capacity is within a predetermined range set in advance; and exhaust controlling means for changing said changeover damper over to an exhausting duct side and operating said cooling fan when it is determined by said battery-residual-capacity determining means that the detected residual capacity is outside the predetermined range.
Claim 36
Dependent Claim
36 words
A vehicle-use battery cooling system according to claim 29, wherein said exhaust controlling means requests said air conditioner to introduce outside air into the vehicle compartment irrespective of a state of operation of said air conditioner.
Claim 37
Dependent Claim
36 words
A vehicle-use battery cooling system according to claim 29, further comprising: a temperature detecting sensor for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery.
Claim 38
Dependent Claim
55 words
A vehicle-use battery cooling system according to claim 21, further comprising: battery-temperature determining means for determining whether or not the temperature detected by said temperature detecting sensor is higher than a predetermined value when it is determined by said battery-residual-capacity determining means that the detected residual capacity is within the predetermined range set in advance.
Claim 39
Dependent Claim
190 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle; a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct; air-conditioning load determining means for determining an air conditioning load required for said air conditioner in air conditioning an interior of the vehicle compartment; and cooling controlling means for stopping the operation of said cooling fan when it is determined by said air-conditioning load determining means that the air conditioning load is greater than a predetermined value.
Claim 40
Dependent Claim
190 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle; a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct; air-conditioning load determining means for determining an air conditioning load required for said air conditioner in air conditioning an interior of the vehicle compartment; and cooling controlling means for stopping the operation of said cooling fan when it is determined by said air-conditioning load determining means that the air conditioning load is greater than a predetermined value.
Claim 41
Dependent Claim
26 words
A vehicle-use battery cooling system according to claim 33, further comprising: a vehicle-compartment-temperature detecting sensor for detecting a temperature of the interior of the vehicle compartment.
Claim 42
Dependent Claim
49 words
A vehicle-use battery cooling system according to claim 34, wherein said air-conditioning load determining means determines the air conditioning load by making a comparison between the temperature of the interior of the vehicle compartment detected by said vehicle-compartment-temperature detecting sensor and a set temperature set in said air conditioner.
Claim 43
Dependent Claim
72 words
A vehicle-use battery cooling system according to claim 35, wherein said air-conditioning load determining means determines that the air conditioning load is large when a difference between the temperature of the interior of the vehicle compartment detected by said vehicle-compartment-temperature detecting sensor and the set temperature is large, and when the temperature of delivered air which is delivered from said air conditioner into the vehicle compartment is lower than a predetermined value.
Claim 44
Dependent Claim
36 words
A vehicle-use battery cooling system according to claim 33, further comprising: a temperature detecting sensor for detecting at least one of the temperature of the interior of said battery chamber and a temperature of said battery.
Claim 45
Dependent Claim
33 words
A vehicle-use battery cooling system according to claim 37, further comprising: temperature determining means for determining whether or not the temperature detected by said temperature detecting sensor is higher than a predetermined temperature.
Claim 46
Dependent Claim
212 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle; a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct; a temperature detecting sensor for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery; increase-rate determining means for determining an increase rate of the temperature of the battery on the basis of a result of detection by said temperature detecting sensor; and changeover means for changing said changeover damper over to an exhausting duct side on the basis of a result of determination by said increase-rate determining means.
Claim 47
Dependent Claim
212 words
A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising: a battery chamber for accommodating the battery; a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan; a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment; an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle; a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct; a temperature detecting sensor for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery; increase-rate determining means for determining an increase rate of the temperature of the battery on the basis of a result of detection by said temperature detecting sensor; and changeover means for changing said changeover damper over to an exhausting duct side on the basis of a result of determination by said increase-rate determining means.
Claim 48
Dependent Claim
33 words
A vehicle-use battery cooling system according to claim 39, wherein said increase-rate determining means changes a criterion for determining the increase rate in correspondence with the temperature detected by said temperature detecting sensor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-08-16 | 2003-02-15 | 2003-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-16 | 2007-02-15 | 2007-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-16 | 2011-02-15 | 2011-08-17 | $7700.00 | Window Closed / Lapsed |