US5624003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery temperature-raising device for electric vehicle
Assignee: Toyota Motor Corp
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Filing: 1993-12-09
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Granted: 1997-04-29
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Expires: 2013-12-09
Abstract
Abstract The present invention relates to a battery heating device for an electric vehicle, which includes: a combustion heater for heating an interior of the electric vehicle; batteries which are a driving source of the electric vehicle, the batteries being disposed about the combustion heater; and a transfer device for transferring exhaust heat from the combustion heater, which is in operation, to the batteries. When the combustion heater is actuated, the battery temperature is raised by the exhaust heat from the combustion heater.
Inventors
- 👤 Tsutomu Matsuki
- 👤 Takayoshi Matsuno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:42
CPC Classifications
B; B60; B60K; B60K1/00; B60K1/04; B60H; B60H1/00; B60H1/00271; B60H1/00278; B60H1/22; B60H1/2203; B60H1/2209; B60L; B60L50/00; B60L50/50; B60L50/60; B60L50/64; B60L50/66; B60L58/00; B60L58/10; B60L58/24; B60L58/26; B60L58/27; H; H01; H01M; H01M10/00; H01M10/60; H01M10/61; H01M10/613; H01M10/615; H01M10/62; H01M10/625; H01M10/63; H01M10/65; H01M10/656; H01M10/6567; H01M10/6568; H01M10/6595; H01M10/66; H01M10/663; H01M10/667; B60H2001/003; B60H2001/00307; B60L2240/00; B60L2240/10; B60L2240/34; H01M10/658; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02T; Y02T10/00; Y02T10/60; Y02T10/70
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
131 words
A battery heating device for mounting to an electric vehicle having a battery charger to heat batteries that serve as a driving source of the electric vehicle while the batteries being heated are mounted to the vehicle, said device comprising: battery charging means mounted to said vehicle and connected to said batteries for charging said batteries by being connected to an external power supply; a conduit formed body forming a circulating path, said conduit formed body being located in one of close proximity to and in contact with said batteries midway along said circulating path; and transfer means, positioned midway along said circulating path of said conduit formed body, for transferring exhaust heat from said charging means during charging to a heat transfer medium which flows within said conduit formed body.
Claim 2
Dependent Claim
131 words
A battery heating device for mounting to an electric vehicle having a battery charger to heat batteries that serve as a driving source of the electric vehicle while the batteries being heated are mounted to the vehicle, said device comprising: battery charging means mounted to said vehicle and connected to said batteries for charging said batteries by being connected to an external power supply; a conduit formed body forming a circulating path, said conduit formed body being located in one of close proximity to and in contact with said batteries midway along said circulating path; and transfer means, positioned midway along said circulating path of said conduit formed body, for transferring exhaust heat from said charging means during charging to a heat transfer medium which flows within said conduit formed body.
Claim 3
Dependent Claim
108 words
A battery heating device for mounting to an electric vehicle according to claim 1, further comprising: a branch path-forming body located midway along said circulating path of said conduit formed body, said branch path-forming body forming a branch path that is subdivided from said circulating path; cooling means, positioned midway along said branch path of said branch path-forming body, for cooling said heat-transfer medium which flows within said branch path-forming body; and temperature control means for controlling a temperature of said heat-transfer medium by regulating an amount of said heat-transfer medium to be fed to said cooling means, so as to maintain said batteries at a predetermined temperature.
Claim 4
Dependent Claim
28 words
A battery heating device for mounting to an electric vehicle according to claim 1, wherein a part of said conduit formed body is embedded in said transfer means.
Claim 5
Dependent Claim
37 words
A battery heating device for mounting to an electric vehicle according to claim 2, wherein said temperature control means comprises temperature-detecting means for detecting said temperature of said heat-transfer medium which flows within said conduit formed body.
Claim 6
Dependent Claim
72 words
A battery heating device for mounting to an electric vehicle according to claim 2, wherein said temperature control means comprises a member for changing an amount of said heat-transfer medium to be fed, said member being provided at a connecting portion where said conduit formed body and said branch path-forming body are connected together, and said member changing said amount of said heat-transfer medium to be fed to said branch path-forming body.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-04-28 | 2000-10-28 | 2001-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-28 | 2004-10-28 | 2005-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-28 | 2008-10-28 | 2009-04-29 | $7700.00 | Window Closed / Lapsed |