JP2016133227A - Cooling device, cover member and electrode device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance cooling performance of a cooling device at low cost.SOLUTION: A cooling device flows air to a first opening part 60A and a second opening part 60B of an outer frame member 54 through which a refrigerant flow passage 42 penetrates, thereby to cool air. The first opening part 60A is sealed with a first cover body 74A to which one end of a liquid flow passage 84 is connected, and the second opening part 60B is sealed with a second cover body 74B to which the other end part of the liquid flow passage 84 is connected, and thus, the cooling device flows liquid to the inside of the outer frame member 54 thereby to liquid-cool refrigerant. The cooling device can change from air cooling to liquid cooling, while using the outer frame member.SELECTED DRAWING: Figure 3

Description

  The technology disclosed in the present application relates to a cooling device, a cover member, and an electronic device.

  There are technologies that use air-cooled air-cooled condensers and water-cooled water-cooled condensers to transport the heat from the thermal highway that collects and transports heat from many heat sources of the server to the outside of the server. .

  There is also a heat-generating component cooling device that includes an air-cooling unit having a heat radiating fin portion and a liquid-cooling unit that can circulate the refrigerant therein, and that can select an air-cooling method or a liquid-cooling method for cooling high-heat-generating components.

JP 2010-79402 A JP 2013-222427 A

  If an electronic device is replaced with one that generates more heat, etc., if the cooling device that cools the electronic component is also replaced with one that has a higher cooling capacity, the previous cooling device is no longer necessary and the cost increases. It becomes.

  One aspect of the disclosed technique of the present application is to increase the cooling capacity of the cooling device at low cost.

  In the technique disclosed in the present application, the first opening and the second opening of the outer frame member through which the coolant channel passes are sealed with a cover member to which one end and the other end of the liquid channel are connected.

  With the technology disclosed in the present application, the cooling capacity of the cooling device can be increased at low cost.

It is a perspective view which shows the electronic apparatus which has the cooling device of 1st embodiment in the state which cools a refrigerant | coolant by air. It is a perspective view which shows the electronic device which has the cooling device of 1st embodiment in the state which cools a refrigerant | coolant. It is a disassembled perspective view which shows the cooling device of 1st embodiment. It is a plane sectional view showing the cooling device of a first embodiment. It is a plane sectional view shown in the state where the cooling device of a first embodiment was disassembled. It is the top view which shows the outer frame member of the cooling device of 1st embodiment, a bottom view, and a right view. It is the top view and front view which show the cover member of the cooling device of 1st embodiment. It is a plane sectional view showing the modification of the cooling device of a first embodiment. It is a plane sectional view showing the cooling device of a first embodiment. It is the top view which shows the outer frame member of the cooling device of 2nd embodiment, a bottom view, a right view, and a left view. It is a disassembled perspective view which shows the cooling device of 3rd embodiment. It is a plane sectional view showing the cooling device of a third embodiment. It is a disassembled perspective view which shows the cooling device of 4th embodiment. It is a plane sectional view showing the cooling device of a fourth embodiment. It is a plane sectional view shown in the state where the cooling device of a fourth embodiment was disassembled.

  A first embodiment will be described in detail based on the drawings.

  As shown in FIG. 1, the electronic device 32 according to the first embodiment includes a substrate 36 disposed in a rack 34, an electronic component 38 </ b> A, and a cooling device 40. The electronic component 38A is mounted on the substrate 36. An example of the electronic component 38A is an integrated circuit such as a processor.

  In the electronic device 32, the electronic component 38A mounted on the board 36 can be replaced with, for example, an electronic component 38B having a larger calorific value as shown in FIG. When the electronic component 38A is the above-described processor, the electronic component 38A initially mounted on the board 36 may be replaced with an electronic component 38B having a high processing capability and high calculation capability (although a large amount of heat is generated). Is possible.

  The cooling device 40 includes a refrigerant channel 42 and an outer frame member 54. A heat receiving member 44 is disposed on the upper surfaces of the electronic components 38A and 38B. Between the outer frame member 54 and the heat receiving member 44, a return refrigerant pipe 42A and a feed refrigerant pipe 42B are connected. Therefore, the refrigerant flow path 42 has a structure including the outer frame member 54, the feed refrigerant pipe 42B, the heat receiving member 44, and the return refrigerant pipe 42A, and the refrigerant flow path 42 is filled with the refrigerant.

  Inside the heat receiving member 44, the temperature of the refrigerant becomes high due to the heat received from the electronic components 38A and 38B. The high temperature refrigerant flows through the return refrigerant pipe 42 </ b> A and reaches the outer frame member 54. The refrigerant is cooled by the outer frame member 54 and becomes a low temperature. The low temperature refrigerant then flows through the feed refrigerant pipe 42 </ b> B and reaches the heat receiving member 44. In this way, the refrigerant circulates through the refrigerant flow path 42. For example, an evaporator that evaporates the refrigerant can be used as the heat receiving member 44, and a condenser that condenses the refrigerant can be used as the outer frame member 54. In this case, in the heat receiving member 44, the refrigerant that has received heat undergoes a phase change from liquid to gas. Then, the gaseous refrigerant returns and flows through the refrigerant pipe 42A. Then, the refrigerant radiated by the outer frame member 54 changes in phase from gas to liquid. The gaseous refrigerant flows through the feed refrigerant pipe 42B.

  A pump 46 is provided in a part of the refrigerant flow path 42 (in the example shown in FIGS. 1 and 2, the feeding refrigerant pipe 42 </ b> B). By driving the pump 46, circulation of the refrigerant in the refrigerant flow path 42 is promoted.

  As will be described later, in the electronic device 32, the refrigerant can be cooled by air cooling or liquid cooling in the outer frame member 54. In the case of air cooling, the cooling device 40 (electronic device 32) includes a fan 48 as shown in FIG. In the example shown in FIG. 1, the fan 48 is disposed inside the rack 34, but a supply / exhaust port may be provided in the rack 34 and the fan 48 may be disposed outside the rack 34.

  In the case of liquid cooling, the cooling device 40 (electronic device 32) includes a cooling liquid pipe 50 and a liquid flow device 52 as shown in FIG. In the example shown in FIG. 2, the liquid flow device 52 is arranged outside the rack 34. However, when the liquid flow device 52 is small, it may be arranged inside the rack 34.

  As shown in FIGS. 3 to 5, the outer frame member 54 has an outer frame main body 56. The outer frame main body 56 is a frame-like member having an upper wall, a lower wall, a left side wall 56L, and a right side wall 56R. In the following, the width direction, the depth direction, and the height direction of the outer frame main body 56 are indicated by arrows W, D, and H, respectively.

  The outer frame main body 56 opens to the near side and the far side. The outer frame member 54 has a first seal plate 58A fixed to the outer frame main body 56 on the front side of the outer frame main body 56 and a second seal plate 58B fixed to the outer frame main body 56 on the back side.

  Each of the first seal plate 58A and the second seal plate 58B is a frame-shaped member that contacts the periphery of the opening portion of the outer frame member. The opening of the first seal plate 58A on the front side is the first opening 60A in the outer frame member 54, and the opening of the second seal plate 58B on the back side is the second opening 60B in the outer frame member 54. In the outer frame member 54, air for cooling the refrigerant flows from the first opening 60A toward the second opening 60B (or vice versa).

  The front side surface of the front side first seal plate 58A is a planar first seal surface 62A. As will be described later, the first facing surface 78A of the first cover body 74A faces the first seal surface 62A. Then, the first seal member 94A comes into contact with the first seal surface 62A.

  Similarly, the back-side surface of the back-side second seal plate 58B is a planar second seal surface 62B. As described later, the second facing surface 78B of the second cover body 74B faces the second seal surface 62B. Then, the second seal member 94B comes into contact with the second seal surface 62B.

  A refrigerant supply / exhaust port 64 is provided in the left side wall 56L and the right side wall 56R of the outer frame member 54. Return refrigerant pipe 42A is provided at refrigerant supply / exhaust port 64 on one side (left side wall 56L in the examples shown in FIGS. 4 and 5), and refrigerant supply / exhaust port 64 on the other side (right side wall 56R in the examples shown in FIGS. 4 and 5). Is connected to the feed refrigerant pipe 42B. Thereby, a structure in which a part of the refrigerant flow path 42 penetrates the outer frame member 54 is realized.

  As shown in FIGS. 3 and 6, a plurality of (three in the example shown in FIGS. 3 and 6, three at regular intervals) internal refrigerant pipes 66 are provided inside the outer frame main body 56. A branch channel 68 is provided in the left side wall 56L and the right side wall 56R of the outer frame member 54. The inside of the branch flow path 68 is continuous with the refrigerant supply / exhaust port 64 and branches into a plurality of portions through which the refrigerant flows. Therefore, the refrigerant flowing from one of the refrigerant supply / exhaust ports 64 is divided into a plurality of branch flow paths 68 in the outer frame member 54. Then, the refrigerant merged from the plurality of branch channels 68 is discharged out of the outer frame member 54 from the other branch channel. In the example shown in FIGS. 3 and 6, a tubular member that is flat in the vertical direction is used as the branch flow path 68, but the branch flow path 68 may be, for example, a cylindrical pipe.

  A plurality of partition walls 70 are provided between the branch flow paths 68. Each of the partition walls 70 is a plate-like member extending from the first opening 60A to the second opening 60B as shown in FIG. Moreover, each of the partition walls 70 is in contact with the branch flow path 68 positioned above and below the partition wall 70 as shown in FIG.

  In the first embodiment, one end portion 70A in the extending direction of the partition wall 70 is in the same plane as the first seal surface 62A. The other end portion 70B in the extending direction of the partition wall 70 is in the same plane as the second seal surface 62B.

  Fins 72 are disposed between the branch flow paths 68. The heat of the refrigerant flowing through the branch flow path 68 is radiated from the fins 72, so that cooling of the refrigerant is promoted.

  In the first embodiment, the fin 72 has a shape obtained by bending a thin plate into a wave shape, and may be referred to as a corrugated fin. The fins 72 are arranged in respective spaces partitioned by the branch flow path 68 and the partition wall 70. The fins 72 are in contact with the branch flow paths 68 located above and below the fins 72 and have a structure in which heat of the refrigerant flowing through the branch flow paths 68 is easily transmitted.

  As shown in FIG. 4, the first opening 60 </ b> A and the second opening 60 </ b> B of the outer frame member 54 are sealed with a cover member 74. In the present embodiment, the cover member 74 includes a first cover body 74A and a second cover body 74B. With respect to the outer frame member 54, a first cover body 74A is attached to the front side, and a second cover body 74B is attached to the back side.

  In the first embodiment, the first cover body 74A and the second cover body 74B have a structure in which members having the same shape are inverted. FIG. 7 shows the second cover body 74B.

  The first cover body 74A has a frame-shaped first counter plate 76A. In the first facing plate 76A, the surface facing the first seal surface 62A in a state where the first cover member 74A is attached to the outer frame member 54 is a planar first facing surface 78A.

  A first recess 80A is formed inside the first counter plate 76A. The first recess 80 </ b> A has a shape that is recessed so as to be separated from the one end 70 </ b> A of the partition wall 70 in a state where the first cover body 74 </ b> A is attached to the outer frame member 54. A first connection port 82A is provided at the right end of the first recess 80A.

  The second cover body 74B has a frame-shaped second opposing plate 76B. In the second facing plate 76B, the surface of the upper body where the second cover member 74B is attached to the outer frame member 54 and facing the second seal surface 62B is a planar second facing surface 78B.

  A second recess 80B is formed inside the second counter plate 76B. The second recess 80 </ b> B has a shape that is recessed so as to be separated from the other end 70 </ b> B of the partition wall 70 in a state where the second cover body 74 </ b> B is attached to the outer frame member 54. A second connection port 82B is provided at the left end of the second recess 80B.

  One end of the coolant pipe 50 is connected to the first connection port 82A, and the other end of the coolant pipe 50 is connected to the second connection port 82B. The coolant pipe 50, the first cover body 74A, the outer frame member 54, and the second cover body 74B form a coolant circulation path 84 through which the coolant circulates. In other words, one end of the coolant circulation path 84 is connected to the first connection port 82A, and the other end is connected to the second connection port 82B. The coolant circulation path 84 is an example of a fluid flow path.

  A liquid flow device 52 is provided in the coolant circulation path 84. By driving the liquid flow device 52, the coolant can be circulated in the direction of the arrow F1 (or in the opposite direction) in the coolant circulation path 84. The liquid flow device 52 is also a device that cools the coolant that has been circulated and returned.

  Here, as shown in FIGS. 4 and 5, the plurality of partition walls 70 are numbered sequentially from the right side of the outer frame member 54 (numbers are shown in parentheses in FIGS. 4 and 5). At this time, the first guide wall 86A is provided in the first recess 80A at a position in contact with the one end portion 70A of the odd-numbered partition wall 70. Further, in the second recess 80B, a second guide wall 86B is provided at a position in contact with the other end portion 70B of the even-numbered partition wall 70. Accordingly, as indicated by an arrow F2 in FIG. 4, the coolant that has flowed into the first cover body 74A flows along the first partition wall 70 through the outer frame member 54 and into the second cover body 74B. To do. Then, the coolant turns back in the second cover body 74B, flows between the first partition wall 70 and the second partition wall 70, and flows into the first cover body 74A. That is, in the cooling device 40, a flow path (folded flow path) through which the coolant flows while alternately folding back and front is formed.

  In the example shown in FIGS. 4 and 5, since the number of the partition walls 70 is an even number, the coolant is discharged from the second cover body 74B. On the other hand, a structure with an odd number of partition walls 70 may be used as in the example shown in FIG. If the number of the partition walls 70 is an odd number, the first connection port 82A and the second connection port 82B may be provided in the first cover body 74A, and the coolant may flow in and out from the first cover body 74A.

  As shown in FIGS. 3 and 6, a plurality of female screws 88 are formed on the first seal plate 58A and the second seal plate 58B. On the other hand, an insertion hole 90 corresponding to the female screw 88 is formed in the first opposing plate 76A of the first cover body 74A and the second opposing plate 76B of the second cover body 74B. The first cover body 74 </ b> A and the second cover body 74 </ b> B can be firmly fixed to the outer frame member 54 by inserting the male screw 92 into the insertion hole 90 and screwing into the female screw 88. The male screw 92 is an example of a first fixing member and is an example of a second fixing member.

  A first seal member 94A is attached to the first facing surface 78A of the first cover body 74A. The first seal member 94 </ b> A has a shape that takes in the first opening 60 </ b> A in a state where the first cover body 74 </ b> A is attached to the outer frame member 54. Furthermore, the first seal member 94A is also provided at an end portion of the first guide wall 86A (a portion facing the one end portion 70A of the partition wall 70).

  On the first facing surface 78A, a groove for accommodating the first seal member 94A is formed at a position where the first seal member 94A is attached, so that the first seal member 94A is prevented from falling off or being displaced.

  A second seal member 94B is attached to the second facing surface 78B of the second cover body 74B. The second seal member 94B has a shape surrounding the second opening 60B in a state where the second cover body 74B is attached to the outer frame member 54. Further, the second seal member 94B is also provided at an end portion of the second guide wall 86A (a portion facing the other end portion 70B of the partition wall 70).

  On the second facing surface 78B, a groove for accommodating the second seal member 94B is formed at a position where the second seal member 94B is attached, and the second seal member 94B is prevented from falling off or being displaced.

  The first seal member 94A and the second seal member 94B are formed of an elastic material such as rubber. The cross-sectional shapes of the first seal member 94A and the second seal member 94B are not particularly limited, for example, circular, elliptical, rectangular, or the like.

  With the first cover body 74A attached to the outer frame member 54, the first seal member 94A is turned into the first opposing plate 76A or the first guide wall 86A and the first seal surface 62A by tightening the male screw 92 described above. The sealability (watertightness) is ensured. Similarly, in the state where the second cover body 74B is attached to the outer frame member 54, the second seal member 94B is turned into the second opposing plate 76B or the second guide wall 86B and the second seal surface by tightening the male screw 92. 62B is elastically crushed and sealability (watertightness) is ensured.

  As can be understood from the above description, when the number of the partition walls 70 of the outer frame member 54 is an even number, the first cover body 74A and the second cover body 74B may be formed as the cover member 74 having the same structure. it can. And it can be used as the 2nd cover body 74B by rotating 180 degree | times centering on the centerline CL-1 of the width direction in 74 A of 1st cover bodies (refer arrow R1). On the contrary, it can be used as the first cover body 74A by rotating 180 degrees around the center line CL-1 in the width direction of the second cover body 74B (see arrow R1). Since the first cover body 74A and the second cover body 74B can be shared, it is possible to contribute to cost reduction.

  The outer frame member 54, the internal refrigerant pipe 66, the partition walls 70, the fins 72, the first cover body 74A, the second cover body 74B, and the guide wall are made of materials having shape stability and durability against the refrigerant or the coolant. Can be formed. When the internal refrigerant pipe 66, the partition wall 70, and the fin 72 are made of metal, particularly copper, high thermal conductivity can be obtained.

  Next, the operation of this embodiment will be described.

  The cooling device 40 of the present embodiment can cool the refrigerant by air cooling as shown in FIG. 1, and can further cool the refrigerant by liquid cooling as shown in FIG. This will be described in detail below.

  In the electronic device 32, the electronic component 38A is mounted on the substrate 36 in the state shown in FIG. In this case, the cooling device 40 is in a state in which the first cover body 74A and the second cover body 74B are not attached to the outer frame member 54. Therefore, as shown in FIG. 9, both the first opening 60A and the second opening 60B of the outer frame member 54 are opened. Then, the fan 48 is located on one side of the first opening 60A and the second opening 60B.

  In the heat receiving member 44, the refrigerant that has received heat from the electronic component 38 </ b> A flows through the return refrigerant pipe 42 </ b> A and further flows into the internal refrigerant pipe 66 in the outer frame member 54. The heat of the refrigerant is transmitted to the fins 72 (see FIG. 6) and the partition walls 70.

  The cooling device 40 has a fan 48. The air generated by driving the fan 48 flows in the outer frame member 54 as shown by an arrow F3 (or the opposite direction) in FIG. The air hits the internal refrigerant pipe 66, the fins 72, and the partition walls 70, thereby radiating heat from the internal refrigerant pipes 66, the fins 72, and the partition walls 70. The cooled refrigerant flows through the feed refrigerant pipe 42B and reaches the heat receiving member 44, so that the electronic component 38A can be cooled again by receiving heat from the electronic component 38A.

  Thus, in the electronic device 32 on which the electronic component 38A is mounted, the electronic component 38A can be cooled by air cooling.

  Here, in the electronic device 32, as shown in FIG. 2, consider replacing the electronic component 38A with the electronic component 38B. The electronic component 38B is a component that generates more heat than the electronic component 38A.

  In this case, as shown in FIG. 4, the first cover body 74 </ b> A and the second cover body 74 </ b> B are attached to the outer frame member 54. The fan 48 may be removed, but the attached state may be maintained as long as it does not interfere with the attachment of the first cover body 74A and the second cover body 74B.

  The first opening 60A of the outer frame member 54 is sealed with the first cover body 74A, and the second opening 60B of the outer frame member 54 is sealed with the second cover body 74B. The coolant pipe 50 is connected to the first cover body 74A and the second cover body 74B. Accordingly, the coolant can be supplied to the inside of the outer frame member 54 by driving the liquid flow device 52. The coolant can be cooled by this coolant. Compared with the case where the refrigerant is cooled with air as shown in FIG. 9 (air cooling), the cooling device 40 cools the refrigerant with liquid (liquid cooling).

  And when obtaining such a high cooling capacity, the outer frame member 54 used at the time of air cooling is also used at the time of liquid cooling. In other words, the outer frame member 54 can be shared between the case of air cooling and the case of liquid cooling. Since the air-cooling type cooling device is removed and no new liquid-cooling type cooling device is attached, the cooling device 40 can be changed from the air-cooling type to the liquid-cooling type at a low cost to increase the cooling capacity of the cooling device.

  Moreover, as an operation for changing the cooling device 40 from air cooling to liquid cooling, the first cover body 74A and the second cover body 74B may be attached to the outer frame member 54. For this reason, compared with the case where an air cooling type cooling device is removed and a liquid cooling type cooling device is newly attached, the required time is also short. For example, the stop time of the electronic device 32 can be shortened.

  In the electronic device 32 on which the electronic component 38B is mounted, the electronic component 38B can be cooled by liquid cooling.

  Since the cooling device 40 includes the fins 72 that are in contact with the branch flow path 68 (an example of the refrigerant flow path) inside the outer frame member 54, the area for radiating the heat of the refrigerant is widened, thereby efficiently cooling the refrigerant. can do.

  The outer frame member 54 has a first seal surface 62A and a second seal surface 62B. The first seal surface 62A is a mating surface with which the first seal member 94A of the first cover body 74A comes into contact. That is, since the first seal member 94A is in contact with the flat first seal surface 62A, the contact state can be maintained satisfactorily. Similarly, the second seal surface 62B is a mating surface with which the second seal member 94B of the second cover body 74B comes into contact. Since the 2nd seal member 94B contacts the 2nd seal surface 62B which is a plane, a contact state can be maintained favorable.

  A partition wall 70 is provided inside the outer frame member 54. The partition wall 70 extends from the first opening 60A to the second opening 60B. Therefore, the fluid (air or coolant) flowing between the first opening 60A and the second opening 60B can be rectified from the first opening 60A side to the second opening 60B side or vice versa.

  Each of the partition walls 70 has one end 70A in the same plane as the first seal surface 62A and the other end 70B in the same plane as the second seal surface 62B. Therefore, compared with a structure in which one end portion 70A is located inside the outer frame member 54 relative to the first seal surface 62A, and a structure in which the other end portion 70B is located inside the outer frame member 54 relative to the second seal surface 62B. Thus, the effect of rectifying the fluid from the first opening 60A to the second opening 60B is high.

  The first cover body 74A has a frame-shaped first facing surface 78A that faces the first seal surface 62A. Therefore, the contact state of the first seal member 94A with respect to the first seal surface 62A can be favorably maintained as compared with the structure without the first facing surface 78A. Similarly, the second cover body 74B has a frame-shaped second facing surface 78B that faces the second seal surface 62B. Therefore, the contact state of the second seal member 94B with respect to the second seal surface 62B can be favorably maintained as compared with the structure without the second facing surface 78B.

  Every other first guide wall 86A provided in the first recess 80A of the first cover body 74A contacts the one end portion 70A of the partition wall 70. Further, the second guide wall 86B provided in the second recess 80B of the second cover body 74B contacts the other end portion 70B of the partition wall 70 where the first guide wall 86A is not in contact. As a result, as shown by an arrow F2 in FIG. 4, a flow path for the coolant that sequentially flows between the partition walls 70 is formed while alternately folding back and front sides of the outer frame member 54. That is, the length of the portion through which the coolant flows can be secured long inside the outer frame member 54.

  The first cover body 74A can be firmly fixed to the outer frame member 54 in a state where the first cover body 74A is pressed against the first seal surface 62A by using a male screw 92 which is an example of a first fixing member. Similarly, the second cover body 74B can be firmly fixed to the outer frame member 54 in a state where the second cover body 74B is pressed against the second seal surface 62B by using a male screw 92 which is an example of a second fixing member.

  As the first fixing member and the second fixing member, for example, a clip can be used in addition to the male screw 92, and the first cover body 74A and the second cover body 74B can be removed by using an adhesive. It is also possible to fix to the frame member 54. When the male screw 92 is used as the first fixing member and the second fixing member, the first cover body 74A and the second cover body 74B are stably pressed against the outer frame member 54 as compared with the case where the clip is used. Can do. Moreover, when the male screw 92 is used as the first fixing member and the second fixing member, the first cover body 74A and the second cover body 74B can be removed from the outer frame member 54 as compared with the case where the first fixing body and the second fixing member are fixed. Easy.

  Female threads 88 are formed on the first seal surface 62A and the second seal surface 62B of the outer frame member 54. Further, an insertion hole 90 is formed in the first cover body 74A and the second cover body 74B. Therefore, the first cover body 74A and the second cover body 74B can be attached to the outer frame member 54 by inserting the male screw 92 into the insertion hole 90 and further screwed into the female screw 88. Easy.

  The first seal member 94A is in close contact with the first seal surface 62A and the first cover body 74A. Thereby, since the liquid-tight state of 62 A of 1st seal surfaces and 74 A of 1st cover bodies can be maintained favorable, the leakage of a cooling fluid can be suppressed. Similarly, the second seal member 94B is in close contact with the second seal surface 62B and the second cover body 74B. Thereby, since the liquid-tight state of the 2nd seal surface 62B and the 2nd cover body 74B can be maintained favorable, the leakage of a cooling fluid can be suppressed.

  Between the first seal surface 62A and the first cover body 74A, the first seal member 94A is also provided on the first guide wall 86A at a position contacting the one end portion 70A of the partition wall 70. Between the second seal surface 62B and the second cover body 74B, the second seal member 94B is also provided on the second guide wall 86B at a position where the partition wall 70 contacts the other end portion 70B. Therefore, as shown in FIG. 4, when the coolant flows in sequence between the partition walls 70 while alternately folding back and forth between the front side and the back side of the outer frame member 54, the partition wall 70 and the first guide wall 86 </ b> A or the second guide. It can suppress flowing between the walls 86B.

  Since the first cover body 74A and the second cover body 74B have the first connection port 82A or the second connection port 82B as an example of a connection portion, the coolant circulation path 84 can be easily formed using these connection portions. Can connect.

  Next, a second embodiment will be described. In the second embodiment, the same elements and members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the second embodiment, the structure of the outer frame member and the refrigerant flow path that flows inside the outer frame member is different from the first embodiment. Since the electronic device of the second embodiment can adopt the same structure as the electronic device 32 of the first embodiment, the description thereof is omitted.

  As shown in FIG. 10, in the cooling device 100 of the second embodiment, the outer frame member 54 is integrally formed with the first seal plate 58A and the second seal plate 58B on the outer frame main body 56 of the first embodiment. As a whole, it is formed in a frame shape having a first seal surface 62A and a second seal surface 62B.

  A plurality of fins 102 are accommodated in the outer frame member 54 at regular intervals in the width direction. Each of the fins 102 has a plate shape and may be referred to as a plate fin.

  A plurality of through holes 108 are formed in each of the left side wall 56L, the right side wall 56R, and the fin 102. The internal refrigerant pipe 104 is inserted through the through hole. Both ends of the internal refrigerant pipe 104 pass through the left side wall 56L and the right side wall 56R and are exposed to the outside of the outer frame member 54. Then, the exposed portion of the specific internal refrigerant pipe 104 is connected by brazing or the like using the U-shaped connection pipe 106, so that the internal refrigerant pipe 104 is entirely between the two refrigerant supply / discharge ports 64. And the internal refrigerant | coolant pipe | tube 66 which passes along the connecting pipe 106 in a specific order is formed.

  A space between the through hole 108 of the left side wall 56L and the right side wall 56R and the internal refrigerant pipe 104 is sealed with a sealing material 110, and leakage of the coolant from the inside of the outer frame member 54 is suppressed. Examples of the sealing material 110 include a bonding material (solder or the like) used for so-called brazing and an adhesive.

  Also in the second embodiment, as in the first embodiment, in the state where the first cover body 74A and the second cover body 74B are not attached to the outer frame member 54, the flow of air generated by driving the fan 48 is internal. The refrigerant is cooled by hitting the refrigerant pipe 66, the fin 72, and the partition wall 70.

  Then, by attaching the first cover body 74A and the second cover body 74B to the outer frame member 54 and driving the liquid flow device 52, the coolant can be supplied into the outer frame member 54 to cool the refrigerant. Compared to air cooling, liquid cooling can provide a higher cooling capacity. In order to obtain a high cooling capacity, the outer frame member 54 used at the time of air cooling is also used at the time of liquid cooling, and the air cooling type cooling device is not replaced with a liquid cooling type cooling device. 40 can be changed from an air cooling type to a liquid cooling type.

  Next, a third embodiment will be described. In the third embodiment, the same elements and members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the third embodiment, the structure inside the outer frame member and the cover member and the structure of the refrigerant flow path that flows inside the outer frame member are different from those in the first embodiment. Since the electronic device of the third embodiment can have the same structure as the electronic device 32 of the first embodiment, the description thereof is omitted.

  As shown in FIGS. 11 to 12, in the cooling device 140 according to the third embodiment, the partition 70 (see FIGS. 3 and 4) according to the first embodiment is not provided in the outer frame body 56 of the outer frame member 154. It is. The first cover body 74A has no first guide wall 86A, and the second cover body 74B has no second guide wall 86B (see any of FIGS. 3 and 4).

  Therefore, in the cooling device 140 of the third embodiment, the structure is simplified and the number of parts is small as compared with the cooling device 40 of the first embodiment, so that the cooling device 140 can be manufactured at low cost.

  Since the first concave portion 80A is separated from the one end portion 70A of the partition wall 70, the coolant is arranged between the first cover body 74A and the outer frame member 54 in the width direction (the direction of the arrow W as indicated by the arrow F4). ). Similarly, the second recessed portion 80B is separated from the other end portion 70B of the partition wall 70, and the coolant is passed between the second cover body 74B and the outer frame member 54 in the width direction (as indicated by an arrow F5). (In the direction of arrow W). Thereby, as shown by arrow F6 in FIG. 12, the flow of the coolant from the first cover body 74A side to the second cover body 74B side can be generated.

  Next, a fourth embodiment will be described. In the fourth embodiment, elements, members, and the like that are the same as in the first embodiment are assigned the same reference numerals, and detailed descriptions thereof are omitted. In the fourth embodiment, the inside of the outer frame member and the structure of the cover member are different from the first embodiment in the structure of the refrigerant flow path that flows through the inside of the outer frame member. Since the electronic device of the fourth embodiment can adopt the same structure as the electronic device 32 of the first embodiment, the description thereof is omitted.

  As shown in FIGS. 13 to 15, in the cooling device 150 of the fourth embodiment, each of the partition walls 70 is short in the extending direction (depth direction). 14 and 15, the other end portion 70B of the odd-numbered partition walls 70 counted from the right side is on the near side (inside the outer frame member 54) from the second seal surface 62B. These odd-numbered partition walls 70 are an example of the first unevenly distributed wall 70P.

  On the other hand, one end portion 70A of the even-numbered partition wall 70 as counted from the right side is on the back side (inside the outer frame member 54) from the first seal surface 62A. These even-numbered partitions 70 are an example of the second unevenly distributed wall 70Q.

  In addition, the cover member 152 of the fourth embodiment includes a first cover body 152A and a second cover body 152B. The first cover body 152A and the second cover body 152B are both formed in a flat plate shape. As described above, the partition wall 70 having a shape in which the other end portion 70B does not reach the second seal surface 62B and the partition wall 70 having a shape in which the one end portion 70A does not reach the first seal surface 62A are alternately arranged. For this reason, as shown by an arrow F7 in FIG. 14, the first cover body 74A and the second cover body 74B are attached to the outer frame member 54, and the cooling is performed while alternately folding the front side and the back side. A folded channel through which the liquid flows is formed.

  In 4th embodiment, since the 1st cover body 152A and the 2nd cover body 152B are flat form, manufacture is easy and can simplify a structure. In addition, since there is no first recess 80A and second recess 80B (see FIGS. 4 and 5) of the first embodiment, the first cover body 152A and the second cover body 152B are attached to the outer frame member 54. Depth is shortened. Thereby, in a state where the cooling device 150 is mounted on the substrate 36 (see FIGS. 1 and 2), the degree of freedom of arrangement of various members on the substrate 36 is increased.

  In the fourth embodiment, the first seal member 94A is attached to the first cover body 152A, and the second seal member 94B is attached to the second cover body 152B.

  In each of the above embodiments, the relationship between the first opening 60A and the second opening 60B of the outer frame member 54 is relative. In the example shown in FIG. 4, the opening on the near side is the first opening 60A, and the opening on the far side is the second opening 60B. Conversely, the opening on the back side may be the first opening 60A and the opening on the near side may be the second opening 60B.

  As for the cover member 74, the relationship between the first cover body 74A and the second cover body 74B is relative. In short, the member that covers the first opening 60A of the outer frame member 54 is the first cover body 74A, and the member that covers the second opening 60B is the second cover body 74B.

  The outer frame member 54 may flow from the first opening 60A to the second opening 60B or from the second opening 60B to the first opening 60A as the flow direction of the air or the coolant. Good.

  In each said embodiment, although 60 A of 1st opening parts and the 2nd opening part 60B have given the example of the same shape seeing in the depth direction (arrow D direction), 60 A of 1st opening parts and 2nd opening part are given. It may not be the same shape as 60B. When the first opening 60A and the second opening 60B have different shapes, the first cover body 74A and the second cover body 74B may be formed in different shapes correspondingly.

  In the above, water, alcohol, oil, or the like can be used as the refrigerant. As the cooling liquid, water, alcohol, oil or the like can be used.

  In the above, the electronic component 38A and the electronic component 38B are not limited to an integrated circuit such as a processor, but may be a memory or a power supply module. In particular, the processor may generate more heat than a memory or a power supply module. By using the cooling device of each of the above embodiments, even a processor with a large amount of heat generation can be effectively cooled by liquid cooling, and the operation of the processor can be stabilized.

  The cooling device of each of the above embodiments can be provided to the user of the electronic device with the cover member attached to the outer frame member or with the cover member set as an accessory. In this case, the user of the electronic device can use the electronic device with the cover member removed from the outer frame member in order to cool the refrigerant initially. At the stage of liquid cooling of the refrigerant, since the user already has a cover member, the cover member may be attached to the outer frame member. Alternatively, it is also possible to provide a cooling device to the user of the electronic device with the cover member as a separate body (the cover member is an optional product), and the user can order the cover member at the stage of liquid cooling of the refrigerant. is there.

  The embodiments of the technology disclosed in the present application have been described above. However, the technology disclosed in the present application is not limited to the above, and can be variously modified and implemented in a range not departing from the gist of the present invention. Of course.

The present specification further discloses the following supplementary notes regarding the above embodiments.
(Appendix 1)
An outer frame member through which a refrigerant flow path through which the refrigerant circulates and fluid flows between the first opening and the second opening;
A cover member that seals the first opening and the second opening, respectively, and is connected to one end and the other end of the liquid channel;
Having a cooling device.
(Appendix 2)
The outer frame member is
A first seal surface provided around the first opening;
A second seal surface provided around the second opening;
Have
The cover member is
A first cover body that contacts the first seal surface and seals the first opening;
A second cover body that contacts the second seal surface and seals the second opening;
The cooling device according to Supplementary Note 1, wherein
(Appendix 3)
The cooling device according to attachment 2, further comprising a partition wall provided on the outer frame member and extending from the first opening side to the second opening side.
(Appendix 4)
The cooling device according to attachment 3, wherein one end of the partition in the extending direction is flush with the first seal surface, and the other end of the partition in the extending direction is flush with the second seal surface. .
(Appendix 5)
The first cover body is
A frame-shaped first facing surface facing the first seal surface;
A first recess that is spaced apart from the one end of the partition wall on the inner side of the first facing surface;
Have
The second cover body is
A frame-shaped second facing surface facing the second seal surface;
A second recess spaced from the other end of the partition wall on the inner side of the second facing surface;
The cooling device according to appendix 4, wherein
(Appendix 6)
A plurality of the partition walls;
A first guide wall provided in the first recess and in contact with the one end of the partition wall every other;
A second guide wall provided in the second recess and in contact with the other end of the partition wall not in contact with the first guide wall;
The cooling device according to appendix 5, wherein
(Appendix 7)
The partition is
A first uneven wall in which one end portion in the extending direction is flush with the first seal surface and the other end portion in the extending direction is located inside the outer frame member from the second seal surface;
A second unevenly-distributed wall in which one end portion in the extending direction is located inside the outer frame member from the first seal surface and the other end portion in the extending direction is flush with the second seal surface;
Have
The cooling device according to attachment 3, wherein the first unevenly distributed wall and the second unevenly distributed wall are alternately arranged.
(Appendix 8)
The first cover body is formed in a flat plate shape that contacts the first seal surface,
The cooling device according to appendix 7, wherein the second cover body is formed in a flat plate shape that contacts the second seal surface.
(Appendix 9)
A first seal member surrounding the first opening and closely contacting the first seal surface and the first cover body;
A second seal member surrounding the second opening and closely contacting the second seal surface and the second cover body;
The cooling device according to any one of appendix 2 to appendix 8 having:
(Appendix 10)
A first fixing member that presses and fixes the first cover body against the first seal surface;
A second fixing member that presses and fixes the second cover body against the second seal surface;
The cooling device according to any one of appendix 2 to appendix 9, which has
(Appendix 11)
Female threads are formed on the first seal surface and the second seal surface,
Screw holes are formed in the first cover body and the second cover body,
The cooling device according to appendix 10, wherein the first fixing member and the second fixing member are male screws that are inserted into the screw holes and screwed into the female screws.
(Appendix 12)
A liquid flow device for flowing a liquid through the liquid flow path;
The cooling device according to any one of appendix 1 to appendix 11 having:
(Appendix 13)
The cooling device according to any one of Supplementary Note 1 to Supplementary Note 12, which includes fins that contact the refrigerant flow path inside the outer frame member.
(Appendix 14)
An outer frame member through which a refrigerant flow path through which the refrigerant circulates and fluid flows between the first opening and the second opening;
A planar first seal surface provided around the first opening in the outer frame member;
A planar second seal surface provided around the second opening in the outer frame member;
Having a cooling device.
(Appendix 15)
The cooling device according to appendix 14, wherein female screws are formed on the first seal surface and the second seal surface.
(Appendix 16)
The cooling device according to appendix 14 or appendix 15, which has a fan that allows air to flow between the first opening and the second opening.
(Appendix 17)
A cover body that is attached to an outer frame member through which the coolant channel passes, and that contacts the periphery of the opening of the outer frame member to seal the opening;
A connecting portion provided on the cover body to which a fluid flow path is connected;
A cover member.
(Appendix 18)
The cover member according to appendix 17, further comprising a seal member that surrounds the opening and is in close contact with the outer frame member.
(Appendix 19)
19. The cover member according to appendix 17 or appendix 18, having a screw hole through which a male screw is inserted.
(Appendix 20)
Electronic components,
A refrigerant flow path through which the refrigerant receiving heat from the electronic component circulates;
An outer frame member through which the refrigerant flow path passes and a fluid flows between the first opening and the second opening;
A first cover body that seals the first opening and is connected to one end of the liquid channel;
A second cover body that seals the second opening and is connected to the other end of the liquid channel;
A liquid flow device for flowing the liquid in the liquid flow path;
An electronic device.
(Appendix 21)
Electronic components,
A refrigerant flow path through which the refrigerant receiving heat from the electronic component circulates;
An outer frame member through which the refrigerant flow path passes and a fluid flows between the first opening and the second opening;
A planar first seal surface provided around the first opening in the outer frame member;
A planar second seal surface provided around the second opening in the outer frame member;
A fan for flowing air between the first opening and the second opening;
An electronic device.

32 Electronic device 40 Cooling device 42 Refrigerant flow path 48 Fan 54 Outer frame member 60A First opening 60B Second opening 62A First seal surface 62B Second seal surface 70 Partition 70A One end 70B The other end 70P First unevenly distributed wall 70Q 2nd uneven distribution wall 72 Fin 74 Cover member 74A 1st cover body 74B 2nd cover body 78A 1st opposing surface 78B 2nd opposing surface 80A 1st recessed part 80B 2nd recessed part 84 Cooling liquid circulation path (an example of a liquid flow path)
86A First guide wall 86B Second guide wall 88 Female screw 90 Insertion hole 92 Male screw 94A First seal member 94B Second seal member 100 Cooling device 102 Fin 140 Cooling device 150 Cooling device 152 Cover member 152A First cover body 152B First Two-cover body 154 outer frame member

Claims (10)

An outer frame member through which a refrigerant flow path through which the refrigerant circulates and fluid flows between the first opening and the second opening;
A cover member that seals the first opening and the second opening, respectively, and is connected to one end and the other end of the liquid channel;
Having a cooling device. The outer frame member is
A first seal surface provided around the first opening;
A second seal surface provided around the second opening;
Have
The cover member is
A first cover body that contacts the first seal surface and seals the first opening;
A second cover body that contacts the second seal surface and seals the second opening;
The cooling device according to claim 1.   The cooling device according to claim 2, further comprising a partition wall provided on the outer frame member and extending from the first opening side to the second opening side.   4. The cooling according to claim 3, wherein one end of the partition in the extending direction is flush with the first seal surface, and the other end of the partition in the extending direction is flush with the second seal surface. apparatus. The first cover body is
A frame-shaped first facing surface facing the first seal surface;
A first recess that is spaced apart from the one end of the partition wall on the inner side of the first facing surface;
Have
The second cover body is
A frame-shaped second facing surface facing the second seal surface;
A second recess spaced from the other end of the partition wall on the inner side of the second facing surface;
The cooling device according to claim 4. A plurality of the partition walls;
A first guide wall provided in the first recess and in contact with the one end of the partition wall every other;
A second guide wall provided in the second recess and in contact with the other end of the partition wall not in contact with the first guide wall;
The cooling device according to claim 5. An outer frame member through which a refrigerant flow path through which the refrigerant circulates and fluid flows between the first opening and the second opening;
A planar first seal surface provided around the first opening in the outer frame member;
A planar second seal surface provided around the second opening in the outer frame member;
Having a cooling device. A cover body that is attached to an outer frame member through which the coolant channel passes, and that contacts the periphery of the opening of the outer frame member to seal the opening;
A connecting portion provided on the cover body to which a fluid flow path is connected;
A cover member. Electronic components,
A refrigerant flow path through which the refrigerant receiving heat from the electronic component circulates;
An outer frame member through which the refrigerant flow path passes and a fluid flows between the first opening and the second opening;
A first cover body that seals the first opening and is connected to one end of the liquid channel;
A second cover body that seals the second opening and is connected to the other end of the liquid channel;
A liquid flow device for flowing the liquid in the liquid flow path;
An electronic device. Electronic components,
A refrigerant flow path through which the refrigerant receiving heat from the electronic component circulates;
An outer frame member through which the refrigerant flow path passes and a fluid flows between the first opening and the second opening;
A planar first seal surface provided around the first opening in the outer frame member;
A planar second seal surface provided around the second opening in the outer frame member;
A fan for flowing air between the first opening and the second opening;
An electronic device.