Patent US6226589B1 successfully refreshed from Google Patents.
← Back to Patent Explorer
US5456632A Expired / Lapsed US ⏱️ 0.0 years remaining

Cooling device and cooling system for an information recording and play-back device of an external memory apparatus

Assignee: Ricoh Co Ltd
•
Filing: 1993-10-15
•
Granted: 1995-10-10
•
Expires: 2013-10-15
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An external memory apparatus for an information recording and play-back device, with the external memory apparatus having an improved cooling arrangement. In particular, a cooling fan is disposed inside of the housing, at a location spaced from a wall of the housing, with an exhaust outlet provided having a smaller area than that of the cooling fan. The exhaust outlet is preferably connected to the cooling fan by a duct, with the cooling system allowing the overall size of the external memory apparatus to be minimized.

Inventors

  • 👤 Ikuroh Ohtsu
  • 👤 Toshiya Tsukasa
  • 👤 Junichi Watanabe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 17:25
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/20009; H05K7/20136

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 153 words
An external memory apparatus having at least one of an information recording and an information playback device therein comprising: a housing; a cooling fan installed inside and spaced from the housing of the external memory apparatus; an exhaust outlet, through which air flow from the cooling fan is exhausted, said exhaust outlet disposed on the housing; wherein a duct member which leads air from said cooling fan to the exhaust outlet is disposed inside the housing between the exhaust outlet and the cooling fan, and said duct member is formed of a sheet material comprising a soft-type film; wherein a cross-sectional area of the exhaust outlet through which air flows is smaller than a cross-sectional area of said cooling fan, and said duct member is formed to be gradually narrowing in a direction extending from said cooling fan to said exhaust outlet, thereby minimizing the area of the cross-section of said exhaust outlet.
Claim 2
Dependent Claim 153 words
An external memory apparatus having at least one of an information recording and an information playback device therein comprising: a housing; a cooling fan installed inside and spaced from the housing of the external memory apparatus; an exhaust outlet, through which air flow from the cooling fan is exhausted, said exhaust outlet disposed on the housing; wherein a duct member which leads air from said cooling fan to the exhaust outlet is disposed inside the housing between the exhaust outlet and the cooling fan, and said duct member is formed of a sheet material comprising a soft-type film; wherein a cross-sectional area of the exhaust outlet through which air flows is smaller than a cross-sectional area of said cooling fan, and said duct member is formed to be gradually narrowing in a direction extending from said cooling fan to said exhaust outlet, thereby minimizing the area of the cross-section of said exhaust outlet.
Claim 3
Dependent Claim 22 words
The external memory apparatus of claim 1, wherein the duct member is formed by folding a sheet material having a predetermined form.
Claim 4
Dependent Claim 49 words
The external memory apparatus of claim 1, wherein said cooling fan is fixed to a support member by a fastener, and the duct member is fixed to the support member together with the cooling fan by the same fastener, and wherein the support member is supported by the housing.
Claim 5
Dependent Claim 39 words
The external memory apparatus of claim 1, further comprising one of a foam material and a soft-type material inserted between either said cooling fan and said duct member or the exhaust outlet of the housing and said duct member.
Claim 6
Dependent Claim 15 words
The external memory apparatus of claim 1, further comprising eaves disposed on said cooling fan.
Claim 7
Dependent Claim 118 words
The external memory apparatus of claim 1, further comprising a partition member which diverts a portion of the air passing through said cooling fan to a second exhaust outlet, and further wherein an air guide device is provided in the form of a box part which surrounds a heat generating device, and a second duct member is connected to said partition member and said box part for guiding air to the box part, and said second exhaust outlet is connected to said box part, whereby both of said exhaust outlets are disposed on a downstream side of said fan such that part of the air passing through said fan exits said housing through each of said exhaust outlets.
Claim 8
Dependent Claim 197 words
An external memory apparatus having at least one of an information recording and an information playback device therein comprising: a housing; a cooling fan installed inside and spaced from the housing of the external memory apparatus; an exhaust outlet, through which air flow from the cooling fan is exhausted, said exhaust outlet disposed on the housing; wherein a duct member which leads air from said cooling fan to the exhaust outlet is disposed inside the housing between the exhaust outlet and the cooling fan; and wherein a cross-sectional area of the exhaust outlet through which air flows is smaller than a cross-sectional area of said cooling fan, and said duct member is formed to be gradually narrowing in a direction extending from said cooling fan to said exhaust outlet, thereby minimizing the area of the cross-section of said exhaust outlet; wherein the duct member is formed by folding a sheet material having a predetermined form and said sheet material having a predetermined form for the duct member includes an overlapping width portion for connecting the sheet material upon itself to form the duct member, and wherein the sheet material is connected to itself by a heat-melting method.
Claim 9
Dependent Claim 197 words
An external memory apparatus having at least one of an information recording and an information playback device therein comprising: a housing; a cooling fan installed inside and spaced from the housing of the external memory apparatus; an exhaust outlet, through which air flow from the cooling fan is exhausted, said exhaust outlet disposed on the housing; wherein a duct member which leads air from said cooling fan to the exhaust outlet is disposed inside the housing between the exhaust outlet and the cooling fan; and wherein a cross-sectional area of the exhaust outlet through which air flows is smaller than a cross-sectional area of said cooling fan, and said duct member is formed to be gradually narrowing in a direction extending from said cooling fan to said exhaust outlet, thereby minimizing the area of the cross-section of said exhaust outlet; wherein the duct member is formed by folding a sheet material having a predetermined form and said sheet material having a predetermined form for the duct member includes an overlapping width portion for connecting the sheet material upon itself to form the duct member, and wherein the sheet material is connected to itself by a heat-melting method.
Claim 10
Dependent Claim 196 words
An external memory apparatus having at least one of an information recording and an information playback device therein comprising: a housing; a cooling fan installed inside and spaced from the housing of the external memory apparatus; an exhaust outlet, through which air flow from the cooling fan is exhausted, said exhaust outlet disposed on the housing; wherein a duct member which leads air from said cooling fan to the exhaust outlet is disposed inside the housing between the exhaust outlet and the cooling fan; and wherein a cross-sectional area of the exhaust outlet through which air flows is smaller than a cross-sectional area of said cooling fan, and said duct member is formed to be gradually narrowing in a direction extending from said cooling fan to said exhaust outlet, thereby minimizing the area of the cross-section of said exhaust outlet; wherein the duct member is formed by folding a sheet material having a predetermined form and the sheet material having a predetermined form for forming the duct member has an overlapping width for connecting the sheet material upon itself to form the duct member, and wherein the sheet material is connected to itself by a staple.
Claim 11
Dependent Claim 196 words
An external memory apparatus having at least one of an information recording and an information playback device therein comprising: a housing; a cooling fan installed inside and spaced from the housing of the external memory apparatus; an exhaust outlet, through which air flow from the cooling fan is exhausted, said exhaust outlet disposed on the housing; wherein a duct member which leads air from said cooling fan to the exhaust outlet is disposed inside the housing between the exhaust outlet and the cooling fan; and wherein a cross-sectional area of the exhaust outlet through which air flows is smaller than a cross-sectional area of said cooling fan, and said duct member is formed to be gradually narrowing in a direction extending from said cooling fan to said exhaust outlet, thereby minimizing the area of the cross-section of said exhaust outlet; wherein the duct member is formed by folding a sheet material having a predetermined form and the sheet material having a predetermined form for forming the duct member has an overlapping width for connecting the sheet material upon itself to form the duct member, and wherein the sheet material is connected to itself by a staple.
Claim 12
Dependent Claim 160 words
An external memory apparatus having at least one of an information recording and an information playback device therein comprising: a housing; a cooling fan installed inside and spaced from the housing of the external memory apparatus; an exhaust outlet, through which air flow from the cooling fan is exhausted, said exhaust outlet disposed on the housing; wherein a duct member which leads air from said cooling fan to the exhaust outlet is disposed inside the housing between the exhaust outlet and the cooling fan; and wherein a cross-sectional area of the exhaust outlet through which air flows is smaller than a cross-sectional area of said cooling fan, and said duct member is formed to be gradually narrowing in a direction extending from said cooling fan to said exhaust outlet, thereby minimizing the area of the cross-section of said exhaust outlet; the apparatus further including eaves disposed on said cooling fan and wherein at least one cable extends over said eaves.
Claim 13
Dependent Claim 160 words
An external memory apparatus having at least one of an information recording and an information playback device therein comprising: a housing; a cooling fan installed inside and spaced from the housing of the external memory apparatus; an exhaust outlet, through which air flow from the cooling fan is exhausted, said exhaust outlet disposed on the housing; wherein a duct member which leads air from said cooling fan to the exhaust outlet is disposed inside the housing between the exhaust outlet and the cooling fan; and wherein a cross-sectional area of the exhaust outlet through which air flows is smaller than a cross-sectional area of said cooling fan, and said duct member is formed to be gradually narrowing in a direction extending from said cooling fan to said exhaust outlet, thereby minimizing the area of the cross-section of said exhaust outlet; the apparatus further including eaves disposed on said cooling fan and wherein at least one cable extends over said eaves.
Claim 14
Dependent Claim 17 words
The external memory apparatus of claim 9, wherein said eaves cover a metal frame of said fan.
Claim 15
Dependent Claim 39 words
The external memory device of claim 10, wherein a plurality of cables extend over said eaves and between said eaves and said housing of said external memory device, and further wherein said eaves are formed of a soft material.
Claim 16
Dependent Claim 228 words
An external memory apparatus having at least one of an information recording and an information playback device therein comprising: a housing; a cooling fan installed inside of said housing and spaced from a first side of said housing; an exhaust outlet disposed on said first side of said housing through which air from said cooling fan is exhausted; a duct member extending from said cooling fan to said outlet such that air exiting said fan travels through said duct and then through said exhaust outlet, said duct having a first cross-sectional area adjacent said exhaust outlet which is less than a second cross-sectional area adjacent said cooling fan; and at least one connector element mounted upon said first side of said housing and extending through said first side of said housing; wherein said first side of said housing is a vertical side of said housing, and wherein a downstream end of said duct member is flanged with flanges extending parallel to said first side of said housing, and wherein an elastic material is disposed between said flanges and said first side; and wherein said fan includes a frame and eaves are provided over at least part of said frame, and wherein said housing includes a top side member, and further wherein at least one cable is disposed between said eaves and said top side member of said housing.
Claim 17
Dependent Claim 228 words
An external memory apparatus having at least one of an information recording and an information playback device therein comprising: a housing; a cooling fan installed inside of said housing and spaced from a first side of said housing; an exhaust outlet disposed on said first side of said housing through which air from said cooling fan is exhausted; a duct member extending from said cooling fan to said outlet such that air exiting said fan travels through said duct and then through said exhaust outlet, said duct having a first cross-sectional area adjacent said exhaust outlet which is less than a second cross-sectional area adjacent said cooling fan; and at least one connector element mounted upon said first side of said housing and extending through said first side of said housing; wherein said first side of said housing is a vertical side of said housing, and wherein a downstream end of said duct member is flanged with flanges extending parallel to said first side of said housing, and wherein an elastic material is disposed between said flanges and said first side; and wherein said fan includes a frame and eaves are provided over at least part of said frame, and wherein said housing includes a top side member, and further wherein at least one cable is disposed between said eaves and said top side member of said housing.
Claim 18
Dependent Claim 149 words
The external memory apparatus of claim 12, wherein said at least one connector element protrudes into said housing from said first side by a first length, and wherein said duct member includes a first portion in which said duct has a substantially constant cross-sectional area along a length of said first portion, and wherein said length of said first portion is greater than said first length, said duct member further including a second portion disposed between said first portion and said fan, said second portion including a cross-sectional area which decreases along said second portion with respect to a direction extending from said fan toward said first portion such that a cross-sectional area of said second portion at a first location adjacent said first portion is smaller than a cross-sectional area of said second portion at a second location which is closer to said fan than said first location.
Claim 19
Dependent Claim 32 words
The external memory of claim 12, wherein a plurality of said connector elements are provided mounted upon said first side of said housing and extend through said first side of said housing.
Claim 20
Dependent Claim 61 words
The apparatus of claim 12, wherein said duct member includes a tapered portion in which a cross-sectional area of said duct member decreases in a direction extending from said fan toward said first side of said housing such that a cross-sectional area of said duct is smaller in said tapered portion for locations closer to said first side of said housing.
Claim 21
Dependent Claim 49 words
The external memory apparatus of claim 12, wherein said frame includes a surface having an aperture therein through which air passes to allow air to flow through said frame and through said fan, and wherein said duct member extends from said frame to said first side of said housing.
Claim 22
Dependent Claim 35 words
The external memory apparatus of claim 16, wherein said surface of said frame is parallel to said first side, and wherein said duct extends in a direction orthogonal to said first side and said surface.
Claim 23
Dependent Claim 41 words
The external member apparatus of claim 17, wherein said frame of said fan includes a flange connected to a bottom surface of said housing, and wherein at least one cable extends between said frame and a top side of said housing.

References Cited (Backward Citations)

US2734441A Cited
US1948755A Cited
US3962608A Cited
US4530685A Cited
US4702154A Cited
US5287009A Cited
US5251096A Cited
US5171183A Cited
US5297005A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-10-09 1999-04-10 1999-10-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-10-09 2003-04-10 2003-10-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-10-09 2007-04-10 2007-10-10 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag