JP2008160022A - Antenna cooling structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an antenna cooling structure that permits insertion and extraction by a block unit without refrigerant interfaces, without allowing a refrigerant to flow directly into a block and allowing the structure of a case-side cooling section to be simple. <P>SOLUTION: An antenna cooling structure is provided with a block 20 with an electronic module mounted and a case-side cooling section 10 provided in such a manner as to surround a refrigerant flow path 11, and performs heat exchange between the refrigerant flow path 11 and the block 20 via a heat pipe 30. The heat pipe 30 has a taper-shaped evaporating section 31m making surface-contact with the block 20 and a condensation section 32, the heat pipe 30 is installed in such a manner as to allow the evaporation section 31 to project from the case-side cooling section 10 and the condensation section 32, to make direct surface-contact with the refrigerant flow path 11 by providing the block 20 with a tapered hole, and the hole and the evaporation section 31 are fitted to each other with the evaporation section 31 as a guide, the block 20 performs heat exchange with the refrigerant flow path 11 and is electrically connected to the case-side cooling section 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an antenna cooling structure in an antenna device in which a plurality of electronic modules need to be two-dimensionally arranged and mounted at a predetermined interval.

  The antenna device is configured by using a plurality of antenna units each having a plurality of transmission / reception modules. Accordingly, the conventional antenna cooling structure has a configuration in which antenna units are provided on both sides of the heat sink, a plurality of transmission / reception modules are provided in the longitudinal direction of the heat sink, and a cooling pipe is provided in the heat sink (for example, Patent Document 1).

JP 2004-179738 A

  Such a conventional antenna cooling structure allows the electronic module (transmission / reception module) to be cooled while allowing insertion and removal in units of blocks (heat sinks and antenna units), so that the self-sealing from the cooling part on the antenna housing side. It was necessary to supply the refrigerant through a type of coupler or the like.

  For this reason, when inserting and removing the block, the connector of the electrical interface with the antenna housing and the coupler of the refrigerant interface must be removed at the same time, which requires insertion / extraction skills, refrigerant leakage, connector damage due to excessive insertion / extraction, etc. I had a risk.

  In addition, since the refrigerant is distributed from the antenna housing to the plurality of blocks, the path is complicated, and the flow path in the block is narrow, which increases the load on the circulation pump and blocks the foreign matter in the flow path system. Could have occurred.

  The present invention has been made to solve such a problem, and it is not necessary to flow a refrigerant directly into the block structure portion, and further, connection with a housing cooling portion by a coupler is unnecessary, and reliability at the time of block insertion / extraction is improved. An object of the present invention is to obtain an antenna cooling structure that is improved and has a simple configuration for the cooling section in the housing.

  An antenna cooling structure according to the present invention includes a block on which an electronic module to be cooled is mounted, and a housing-side cooling unit provided so as to surround the refrigerant flow path, and the refrigerant flow path and the block are connected via a heat pipe. An antenna cooling structure that cools an electronic module by exchanging heat, and the heat pipe has a taper-shaped evaporation section that is in surface contact with the block at one end, and a refrigerant inside the casing-side cooling section at the other end Consists of a plurality of cylindrical heat pipes having a condensing part in surface contact with the flow path, the evaporation part protrudes from the case side cooling part, and penetrates the case side cooling part so that the condensing part is in direct surface contact with the refrigerant flow path. The block is provided with a tapered hole for inserting the evaporation part protruding from the housing side cooling part, and the tapered hole and the tapered evaporation part are guided by the protruding evaporation part as a guide. By fitting the, performs refrigerant flow path and the heat exchange via a plurality of cylindrical heat pipes, is for electrical and casing-side cooling unit connected.

  According to the present invention, a plurality of cylindrical heat pipes are installed so that the evaporation section protrudes from the casing-side cooling section, with heat exchange between the refrigerant flow path and the block via the plurality of cylindrical heat pipes. By connecting the block to the housing-side cooling unit using the guide as a guide, it is possible to obtain an electrical connection as well as a cooling connection. Thus, it is possible to obtain an antenna cooling structure that improves the reliability when inserting and removing the block, and that the cooling unit in the housing has a simple configuration.

Embodiment 1 FIG.
FIG. 1 is a diagram showing an antenna cooling structure according to Embodiment 1 of the present invention. The antenna cooling structure in FIG. 1 has a structure in which a cooling unit 10 on the antenna housing side (hereinafter referred to as a housing side cooling unit 10) and a block 20 exchange heat through a plurality of cylindrical heat pipes 30. ing.

  The casing side cooling unit 10 is provided on both side surfaces of the refrigerant flow path 11 so as to surround the refrigerant flow path 11. On the block 20, a plurality of electronic modules 21 to be cooled are mounted. Each of the plurality of cylindrical heat pipes 30 has a tapered evaporation part 31 in surface contact with the block 20 at one end and a condensing part 32 in surface contact with the refrigerant flow path 11 at the other end. .

  Each of the plurality of cylindrical heat pipes 30 penetrates the housing side cooling unit 10 so that the evaporation unit 31 protrudes and the condensing unit 32 is in direct surface contact with the refrigerant flow path 11, so that the housing side cooling unit 10 It is attached.

  On the other hand, a tapered hole is provided on the block 20 side so as to correspond to the evaporation unit 31 protruding from the housing side cooling unit 10. Then, the block 20 comes into surface contact with the evaporation portion 31 by fitting the tapered hole provided in the block 20 and the protruding evaporation portion 31 of the taper shape. And the electronic module 21 is mounted in the position on the block 20 equivalent to the upper part of such a surface contact part, and the electronic module 21 can be cooled effectively by heat exchange.

  Next, an electrical connection method, which is another feature of the antenna cooling structure of the present invention, will be described. FIG. 2 is an explanatory diagram of electrical connection using the antenna cooling structure according to Embodiment 1 of the present invention. FIG. 2 shows a connector 22 for electrical connection provided in the block 20. Although not shown, the housing side cooling unit 10 side is also electrically connected to positions corresponding to these connectors 22. A connector for connection is provided.

  In the antenna cooling structure of the present invention, a coupler connection for supplying a refrigerant is not necessary, and a plurality of cylindrical heats are obtained by fitting the protruding evaporation part 31 with a hole provided in the block 20 as described above. Cooling by heat exchange through the pipe 30 is possible. Further, regarding the electrical connection, by using the evaporation unit 31 for cooling as a guide and fitting the block 20 and the housing side cooling unit 10 together, the connector 22 on the block 20 side and the housing side cooling unit 10 side are connected. A connector (not shown) is engaged to provide an electrical connection.

  By providing the configuration as shown in FIG. 2, it is possible to avoid the conventional structure in which the connector of the electrical interface between the block 20 and the housing side cooling unit 10 and the coupler of the refrigerant interface have to be detached at the same time. Can do. As a result, it is possible to eliminate the conventional problems that require the skill of insertion / extraction and have risks such as refrigerant leakage or connector breakage due to excessive insertion / extraction.

  As described above, according to the first embodiment, the heat pipe can be directly exchanged with the refrigerant by providing the configuration in which the evaporation part of the heat pipe is protruded from the housing side cooling part and fitted with the block. In addition, the heat pipe's evaporation part is tapered to reduce contact thermal resistance, and it is possible to effectively utilize the heat transfer effect of the heat pipe and cool it without flowing refrigerant directly into the block. It becomes.

  Furthermore, since there is no need to flow the refrigerant directly into the block, a refrigerant interface between the block and the housing side cooling unit is unnecessary, and only the electrical interface needs to be connected using the protruding evaporation unit as a guide. Reliability is greatly improved.

  Furthermore, since it is not necessary to distribute and supply the refrigerant from the housing side cooling unit to the plurality of blocks, the configuration of the housing side cooling unit is simplified, and pressure loss can be reduced, so that the load on the refrigerant supply side can also be reduced. .

Embodiment 2. FIG.
In the second embodiment, a specific shape of the tapered evaporation part 31 in the cylindrical heat pipe 30 for surface contact with the block 20 will be described. FIG. 3 is a diagram showing a first specific shape of the evaporation unit 31 according to Embodiment 2 of the present invention. The evaporation part 31 in the cylindrical heat pipe 30 shown in FIG. 3 has a tapered shape formed as a conical taper. By having such a tapered shape, it is easy to fit into the block 20, and the contact thermal resistance can be reduced, and the heat transfer effect of the cylindrical heat pipe 30 can be achieved without flowing a coolant directly into the block 20. It can be effectively utilized for cooling.

  FIG. 4 is a diagram showing a second specific shape of the evaporation unit 31 according to Embodiment 2 of the present invention. The evaporation part 31 in the cylindrical heat pipe 30 shown in FIG. 4 has a tapered part formed as a conical taper, and further has a convex part 31a for increasing the contact area. By having such a tapered shape, it is easy to fit into the block 20, the contact thermal resistance can be further reduced, and the heat transfer effect of the cylindrical heat pipe 30 can be achieved without flowing a refrigerant directly into the block 20. It is possible to effectively utilize the cooling.

  FIG. 5 is a diagram showing a third specific shape of the evaporation unit 31 according to Embodiment 2 of the present invention. As for the evaporation part 31 in the cylindrical heat pipe 30 shown in FIG. 5, the taper shape is formed as a rectangular taper. By having such a tapered shape, it is easy to fit into the block 20, and the contact thermal resistance can be reduced, and the heat transfer effect of the cylindrical heat pipe 30 can be achieved without flowing a coolant directly into the block 20. It can be effectively utilized for cooling.

  In addition, it is also possible to provide the convex part 31a as shown in FIG. 4 also about the rectangular taper shown in FIG. 3 to 5, the conical taper and the rectangular taper have been described as specific examples of the taper shape of the evaporating portion 31, but the shape is not limited to these shapes, and is fitted into the block 20. It is possible to apply a tapered shape that can facilitate the above.

  As described above, according to the second embodiment, it is possible to take various configurations as the tapered shape of the condensing part, and it is easy to fit into the block, and the contact thermal resistance can be reduced, and the inside of the block is reduced. Even if the refrigerant is not flowed directly, it is possible to cool by effectively utilizing the heat transfer effect of the cylindrical heat pipe.

Embodiment 3 FIG.
In the first and second embodiments, the case where the evaporation part 31 and the block 20 of the cylindrical heat pipe 30 are fitted with a tapered structure has been described. On the other hand, in this Embodiment 3, the case where the improvement of a cooling effect is aimed at by providing the fin structure 32a with respect to the condensation part 32 is demonstrated.

  FIG. 6 is a diagram showing a specific shape of the cylindrical heat pipe 30 according to Embodiment 3 of the present invention. The condensing part 32 in the cylindrical heat pipe 30 shown in FIG. 6 has a fin structure 32a for increasing the contact area with the refrigerant flow path 11 and enhancing the cooling effect. By attaching the cylindrical heat pipe having such a shape to the casing-side cooling unit 10 in advance, the contact area with the refrigerant flow path 11 can be increased.

  As described above, according to the third embodiment, by providing the fin structure that increases the contact area between the condensing part and the refrigerant flow path, the heat transfer effect of the cylindrical heat pipe is further effectively utilized for cooling. It becomes possible.

It is a figure which shows the antenna cooling structure in Embodiment 1 of this invention. It is explanatory drawing of the electrical connection using the antenna cooling structure in Embodiment 1 of this invention. It is a figure which shows the 1st specific shape of the evaporation part in Embodiment 2 of this invention. It is a figure which shows the 2nd specific shape of the evaporation part in Embodiment 2 of this invention. It is a figure which shows the 3rd specific shape of the evaporation part in Embodiment 2 of this invention. It is a figure which shows the specific shape of the cylindrical heat pipe in Embodiment 3 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Case side cooling part, 11 Refrigerant flow path, 20 block, 21 Electronic module, 22 Connector, 30 Heat pipe (cylindrical heat pipe), 31 Evaporating part, 31a Convex part, 32 Condensing part, 32a Fin structure.

Claims (5)

By providing a block on which the electronic module to be cooled is mounted and a housing side cooling unit provided so as to surround the refrigerant flow path, and performing heat exchange between the refrigerant flow path and the block via a heat pipe An antenna cooling structure for cooling the electronic module,
The heat pipe includes a plurality of cylindrical heats having a tapered evaporation part in surface contact with the block at one end and a condensing part in surface contact with the refrigerant flow path inside the housing side cooling part at the other end. It is constituted by a pipe, the evaporation unit protrudes from the housing side cooling unit, and is attached through the housing side cooling unit so that the condensing unit is in direct surface contact with the refrigerant flow path,
The block is provided with a tapered hole for inserting the evaporating part protruding from the housing side cooling part, and the tapered hole and the tapered evaporating part are guided by the protruding evaporating part as a guide. The antenna cooling structure is configured to exchange heat with the refrigerant flow path through the plurality of cylindrical heat pipes and to be electrically connected to the casing-side cooling unit. The antenna cooling structure according to claim 1,
The antenna cooling structure according to claim 1, wherein the heat pipe further has a fin shape in the condensing portion that increases a contact area with the refrigerant flow path. The antenna cooling structure according to claim 1 or 2,
The antenna cooling structure, wherein the heat pipe has the tapered evaporation part formed as a conical taper. The antenna cooling structure according to claim 1 or 2,
The antenna cooling structure, wherein the heat pipe has the tapered evaporation portion formed as a rectangular taper. The antenna cooling structure according to any one of claims 1 to 4,
The antenna cooling structure according to claim 1, wherein the heat pipe further includes a convex portion for increasing a contact area in the tapered evaporation portion.

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