Heat dissipation structure of machine core

Abstract

The invention discloses a machine core heat dissipation structure, and relates to the technical field of cooling heat dissipation structures, a shell main body is provided with a heat dissipation channel, an inlet end and an outlet end of the heat dissipation channel are respectively communicated with the outside, and the heat dissipation channel is isolated from an inner cavity of the shell main body; at least part of the heating components in the inner cavity of the shell body are installed on the side wall forming the heat dissipation channel in a heat conduction mode, heat is dissipated to the outside from the heat dissipation channel, and the heat dissipation efficiency is related to the flowing speed of a medium in the heat dissipation channel. When the heating value of the component is relatively low, the heat dissipation requirement can be met only by heat transfer of the heat dissipation channel; when the heating value is increased, driving equipment can be additionally arranged in the heat dissipation channel to accelerate medium flow; the heat dissipation rate can be changed through different types of media; no matter the heat dissipation efficiency is accelerated by adopting any means, the arrangement mode of the components does not need to be changed, and only the structure outside the shell main body needs to be changed, so that more flexible heat dissipation layout can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling and heat dissipation structures, and further to a movement heat dissipation structure. Background Art

[0002] The temperature of the movement module is a very important factor in the imaging quality and temperature measurement accuracy of infrared products, so how to efficiently dissipate heat is crucial to the imaging quality and temperature measurement accuracy of the infrared movement.

[0003] There are two types of infrared cameras on the market now, which do not have a heat dissipation structure. Due to size and scenario reasons, this type of camera cannot have a heat dissipation structure, which results in the sacrifice of some product performance.

[0004] There is also a method of using a heat sink to dissipate heat from the movement. This method has low heat dissipation efficiency and will also increase the size of the product, limiting the usage scenarios.

[0005] There is also a method of adding a fan to dissipate heat from the heating device. The disadvantage is that the fan increases the size of the movement and the heat dissipation efficiency is limited. The fan also has a low direct wind speed and will bring dust to the movement. The dust is difficult to clean, and over time, the heat dissipation efficiency becomes lower and lower.

[0006] For products with high heat dissipation requirements, liquid cooling or TEC (semiconductor cooler) is usually used for heat dissipation. The channel and TEC are designed inside the product, and the cooling circulation system is external. This method has the highest heat dissipation efficiency, occupies external space, and is more conducive to product stacking design.

[0007] The above scheme has been finalized at the beginning of product design. If the heat dissipation is not enough in the future, the product structure needs to be completely overturned and redone, which consumes project cycle and cost. For technicians in this field, how to achieve a flexible heat dissipation layout is a technical problem that needs to be solved at present. Summary of the invention

[0008] The core of the present invention is to provide a core heat dissipation structure, in which a heat dissipation channel is provided through the shell body, and the heat dissipation channel is isolated from the inner cavity of the shell body. The heat dissipation effect can be changed by changing the medium flow rate in the heat dissipation channel without affecting the layout of the components in the inner cavity of the shell body. The specific scheme is as follows:

[0009] A movement heat dissipation structure comprises a shell body, wherein the inner cavity of the shell body is used to install components, a heat dissipation channel is arranged on the shell body, an inlet end and an outlet end of the heat dissipation channel are respectively connected to the outside, and the heat dissipation channel is isolated from the inner cavity of the shell body;

[0010] At least part of the heat-generating components in the inner cavity of the shell body are heat-conductingly mounted on the side walls forming the heat dissipation channel.

[0011] Optionally, the heat dissipation channel is arranged to penetrate along a straight line direction.

[0012] Optionally, the width of the heat dissipation channel is narrow in the middle and wide at both ends, so as to form a space for allowing the connection line to pass through between the outer wall in the middle of the heat dissipation channel and the side wall of the shell body.

[0013] Optionally, the heat dissipation channel is arranged to be vertically through-going.

[0014] Optionally, a heat dissipation fin is arranged in the heat dissipation channel, and a surface of the heat dissipation fin is parallel to a central axis of the heat dissipation channel.

[0015] Optionally, an air driving device is detachably mounted on the outside of the housing body, and the air driving device is mounted at the inlet end or the outlet end of the heat dissipation channel to enable air flow to flow through the heat dissipation channel from the inlet end to the outlet end;

[0016] A temperature detector is arranged in the inner cavity of the shell body, and a controller controls the air flow speed in the heat dissipation channel according to a detection signal of the temperature detector.

[0017] Optionally, a first guide air duct and a second guide air duct that are connected to each other are arranged inside the air driving device, the second guide air duct is opposite to the heat dissipation channel, the first guide air duct is perpendicular to the second guide air duct; the second guide air duct is parallel to the air intake direction of the air driving device; the cross-sectional area of ​​the second guide air duct is equal to the cross-sectional area of ​​the heat dissipation channel.

[0018] Optionally, a liquid cooling joint is detachably mounted on the outside of the shell body, and one of the liquid cooling joints is mounted on the inlet end and the outlet end of the heat dissipation channel, respectively, wherein one of the liquid cooling joints is used to input cooling liquid into the inlet end of the heat dissipation channel, and the other of the liquid cooling joints is used to discharge cooling liquid from the outlet end of the heat dissipation channel;

[0019] A temperature detector is arranged in the inner cavity of the shell body, and a controller controls the speed of the cooling liquid in the heat dissipation channel according to a detection signal of the temperature detector.

[0020] Optionally, the liquid cooling joint includes a fixing plate and a pipe connecting column, wherein the fixing plate is used for being fixedly assembled with the shell body, and the pipe connecting column is used for being connected with an external delivery pipeline.

[0021] Optionally, the housing body comprises a first end shell, an intermediate shell, and a second end shell, and the front and rear ends of the intermediate shell are respectively butt-jointed to install the first end shell and the second end shell;

[0022] The first end shell and the middle shell, and the middle shell and the second end shell are butted together to form an inner cavity for installing components; the heat dissipation channel is provided through the middle shell.

[0023] The present invention provides a movement heat dissipation structure, wherein the inner cavity of a shell body is used for installing components, and the shell body is provided with a heat dissipation channel, the inlet end and the outlet end of the heat dissipation channel are respectively connected to the outside, and the heat dissipation channel is isolated from the inner cavity of the shell body, and the outside air does not contact the inner cavity of the shell body; at least part of the heat-generating components in the inner cavity of the shell body are heat-conductingly installed on the side walls constituting the heat dissipation channel, and the heat generated by the heat-generating components is directly transferred to the side walls of the heat dissipation channel, and the heat is dissipated from the heat dissipation channel to the outside, and the efficiency of heat dissipation is related to the flow speed of the medium in the heat dissipation channel; when the heat generation of the components is low, only the heat transfer of the heat dissipation channel itself is needed to meet the heat dissipation needs; when the heat generation increases, a driving device can be added to the heat dissipation channel to accelerate the flow of the medium; and the heat dissipation rate can also be changed by different types of media; the internal components of the movement heat dissipation structure will not contact the medium in the heat dissipation channel, no matter what means are taken to accelerate the heat dissipation efficiency, it is not necessary to change the arrangement of the components, and only the structure outside the shell body needs to be changed, so as to achieve a more flexible heat dissipation layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is an axonometric diagram of a specific embodiment of the heat dissipation structure of the movement of the present invention;

[0026] Figure 2 for Figure 1 A cross-sectional view of an embodiment thereof;

[0027] Figure 3 An axonometric diagram of a specific embodiment of the movement heat dissipation structure of the present invention provided with an air drive device;

[0028] Figure 4 for Figure 3 A cross-sectional view of an embodiment thereof;

[0029] Figure 5 An axonometric diagram of a specific embodiment of the movement heat dissipation structure of the present invention provided with a liquid cooling joint;

[0030] Figure 6 is a schematic diagram of a second embodiment of a heat dissipation channel;

[0031] Figure 7 Schematic diagram of the matching between the heat dissipation channel and the housing body.

[0032] The figure includes:

[0033] The outer shell body 1, the first end shell 11, the middle shell 12, the second end shell 13, the heat dissipation channel 2, the air driving device 3, the first guide air duct 31, the second guide air duct 32, the liquid cooling joint 4, the fixing plate 41, the pipe connecting column 42, the temperature detector 5, and the connecting line 6. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the movement heat dissipation structure of the present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] Combination Figure 1 , Figure 2 As shown, the present invention provides a movement heat dissipation structure, including a shell body 1, the shell body 1 is provided with an inner cavity independent of the outside, the inner cavity of the shell body 1 is used to install components, and the functions of the device are jointly realized through the mutual cooperation between the components.

[0036] The shell body 1 is provided with a heat dissipation channel 2. The heat dissipation channel 2 is a pipe-like structure, and is provided with an inlet end and an outlet end respectively. The inlet end and the outlet end of the heat dissipation channel 2 are respectively connected to the outside world. The heat dissipation channel 2 can be arranged in a straight line, or it can be arranged in a curved shape. The heat dissipation channel 2 is connected to the outside world through the inlet end and the outlet end, but the heat dissipation channel 2 itself is isolated from the inner cavity of the shell body 1, that is, the medium in the heat dissipation channel 2 will not enter the inner cavity of the shell body 1, and the medium in the heat dissipation channel 2 will not contact the components arranged in the inner cavity of the shell body 1. The heat dissipation channel 2 is equivalent to a pipe, the main part of which is located in the inner cavity of the shell body 1, and the two ends of the pipe are connected to the side walls of the shell body 1. The area surrounded by the pipe wall does not belong to the inner cavity of the shell body 1. The pipe is a relatively independent heat dissipation structure. The inner cavity of the shell body 1 is independently and closed, and no dust will enter the inside of the movement, so as to avoid the accumulation of dust affecting the heat dissipation efficiency.

[0037] At least part of the heat generating components in the inner cavity of the shell body 1 are heat-conductingly mounted on the side walls constituting the heat dissipation channel 2. The side walls of the heat dissipation channel 2 form a pipe structure around the side walls of the heat dissipation channel 2. The side walls of the heat dissipation channel 2 serve as a part of the structure forming the inner cavity of the shell body 1, and components are mounted on the side walls of the heat dissipation channel 2. The components mounted on the side walls of the heat dissipation channel 2 are preferably components with high heat generation, so as to ensure that the heat is quickly conducted through the side walls of the heat dissipation channel 2 to the medium of the heat dissipation channel 2, and finally dissipated to the outside. The heat dissipation channel 2 is made of heat-conducting materials, such as aluminum, copper, etc., to ensure high thermal conductivity, which is conducive to heat dissipation and allows heat to be quickly conducted and dissipated.

[0038] The medium in the heat dissipation channel 2 can be air, water or other refrigerants, and the medium in the heat dissipation channel 2 can flow along the heat dissipation channel 2, flow into the low-temperature medium from the outside and discharge the high-temperature medium after absorbing heat to the outside. A driving structure can be set to drive the flow of the medium inside the heat dissipation channel 2.

[0039] The shell body 1 may also be made of heat-conducting material, and the heat generated in the inner cavity of the shell body 1 may be directly conducted to the outside through the shell body 1 .

[0040] The movement heat dissipation structure of the present invention is provided with a heat dissipation channel 2 on the shell body 1. The components inside the shell body 1 will not contact the medium in the heat dissipation channel 2. No matter what means are taken to accelerate the flow of the medium to improve the heat dissipation efficiency, it is not necessary to change the arrangement of the components in the inner cavity of the shell body 1. Only the structure outside the shell body 1 needs to be changed, such as changing the drive structure or changing the type of medium, so as to achieve a more flexible heat dissipation layout. Figure 1 , Figure 2 As shown, when the driving structure is not provided on the shell body 1, it is suitable for the case where the heat generated by the components in the inner cavity of the shell body 1 is small, and the heat dissipation can be achieved by heat conduction of the heat dissipation channel 2 and the shell body 1 itself. Figure 3 As shown, when other driving structures are provided on the shell body 1, the medium in the heat dissipation channel 2 can be driven to flow faster, and the heat dissipation can be accelerated by the flow of the medium. No matter how the external driving structure changes, it will not contact the components inside the shell body 1, so it will not cause the layout of the components inside the shell body 1 to change. Only by changing the driving structure outside the shell body 1, different heat dissipation efficiencies can be achieved, so a more flexible heat dissipation layout can be achieved.

[0041] On the basis of the above scheme, in some embodiments, the heat dissipation channel 2 is arranged to pass through in a straight line direction, and the heat dissipation channel 2 does not have a bending area, so that the medium in the heat dissipation channel 2 can pass quickly. When the heat dissipation channel 2 passes through in a straight line direction, the inlet end and the outlet end of the heat dissipation channel 2 are respectively located on two opposite side walls.

[0042] In addition, the heat dissipation channel 2 can also adopt other configuration forms, combined with Figure 6 As shown, the heat dissipation channel 2 is a U-shaped structure, and there is a bending area in the heat dissipation channel 2. The medium changes direction by 180 degrees when flowing from the inlet end to the outlet end. The inlet end and the outlet end of the heat dissipation channel 2 are arranged on the same side wall of the shell body 1. This structure should also be included in the protection scope of the present invention. In addition, the inlet end and the outlet end of the heat dissipation channel 2 can also be arranged on two adjacent side walls of the shell body 1. The medium changes direction by 90 degrees when flowing from the inlet end to the outlet end. This solution should also be included in the protection scope of the present invention. Compared with the straight line shape, the heat dissipation channel 2 is provided with a bending area, which has a larger surface area and can achieve faster heat conduction.

[0043] The width of heat dissipation channel 2 is narrow in the middle and wide at both ends. Figure 7 As shown, the widths of the upper end (inlet end) and the lower end (outlet end) of the heat dissipation channel 2 are relatively large, the widths of the upper and lower ends are W1, and the width of the middle area is W2, W1>W2, and the narrower width portion of the heat dissipation channel 2 in the middle can form a space between the outer wall in the middle of the heat dissipation channel 2 and the side wall of the shell body 1 for avoiding the connection line 6 to pass through, and the height of the middle area with a width of W2 should be greater than the height of the connection line, so as to form an avoidance space for the connection line.

[0044] Combination Figure 2 , Figure 4 As shown, for the linear heat dissipation channel 2 structure, the heat dissipation channel 2 is vertically through-arranged, and the medium inside the heat dissipation channel 2 flows vertically, and the medium can flow from top to bottom or from bottom to top.

[0045] In order to improve the heat dissipation efficiency, in some embodiments, a heat dissipation fin is arranged in the heat dissipation channel 2, and the surface of the heat dissipation fin is parallel to the central axis of the heat dissipation channel 2. For the structure in which the heat dissipation channel 2 is a straight through structure, the heat dissipation fin is a straight plate-like structure. Figure 6 The heat dissipation channel 2 shown adopts a U-shaped structure, and the heat dissipation fins are kept parallel to the axis of the heat dissipation channel 2, thereby increasing the heat exchange area and avoiding obstruction to the flow of the medium.

[0046] Based on any of the above solutions and their combinations, the present invention detachably mounts an air driving device 3 on the outside of the housing body 1, and the air driving device 3 is mounted at the inlet end or outlet end of the heat dissipation channel 2 to allow the airflow to flow through the heat dissipation channel 2 from the inlet end to the outlet end. Figure 3 , Figure 4As shown, the air driving device 3 is installed on the upper part of the housing body 1, located at the inlet end of the heat dissipation channel 2, and the air driving device 3 guides the external airflow into the heat dissipation channel 2 and discharges it from the outlet end at the lower end of the heat dissipation channel 2. The air driving device 3 is provided with fan blades, and the rotation of the fan blades can drive the air flow.

[0047] The inner cavity of the housing body 1 is provided with a temperature detector 5, which is used to detect the heating condition of the inner cavity components, detect the amount of heat generated, and provide real-time temperature data. The controller controls the air flow speed in the heat dissipation channel 2 according to the detection signal of the temperature detector 5. When the temperature is high, the fan blade speed of the air drive device 3 is increased, and when the temperature is low, the fan blade speed can be reduced to meet the heat dissipation requirements and avoid energy waste.

[0048] Combination Figure 4 As shown, the air driving device 3 is provided with a first guide air duct 31 and a second guide air duct 32 that are connected to each other, and the first guide air duct 31 and the second guide air duct 32 are connected end to end. The second guide air duct 32 is directly opposite to the heat dissipation channel 2, and the second guide air duct 32 is parallel to the air intake direction of the air driving device 3. The cross-sectional area of ​​the second guide air duct 32 is equal to the cross-sectional area of ​​the heat dissipation channel 2, and the air in the second guide air duct 32 can directly enter the inlet end of the heat dissipation channel 2. The first guide air duct 31 is perpendicular to the second guide air duct 32, and the air changes its flow direction when it enters the second guide air duct 32 from the first guide air duct 31. Figure 4 As shown, when the fan blades in the air driving device 3 rotate, the air is sucked from top to bottom and flows horizontally from left to right along the first guide air duct 31, and the air flow direction is changed once; the air flows from top to bottom along the second guide air duct 32 and enters the heat dissipation channel 2, completing the second direction change. The air inlet of the air driving device 3 is relatively large, and the outlet of the second guide air duct 32 is relatively small. By changing the air flow direction, the air flow path is increased, the air flow is rectified, and the air enters the heat dissipation channel 2 more concentratedly. The cross-sectional area of ​​the air channel is reduced, which can increase the speed of the air flow, and the wind speed is doubled to achieve the effect of doubling the heat dissipation.

[0049] In addition to air cooling, the present invention can also dissipate heat by liquid cooling. A liquid cooling connector 4 is detachably installed on the outside of the housing body 1, and a liquid cooling connector 4 is installed at the inlet and outlet of the heat dissipation channel 2, respectively. One of the liquid cooling connectors 4 is used to input coolant to the inlet of the heat dissipation channel 2, and the other liquid cooling connector 4 is used to discharge coolant from the outlet of the heat dissipation channel 2. Figure 5 As shown, for the heat dissipation channel 2 adopting a straight through structure, the liquid cooling joint 4 installed above the shell body 1 is used for liquid inlet, and the liquid cooling joint 4 installed below the shell body 1 is used for liquid outlet. The liquid flows through the heat dissipation channel 2 to absorb and carry out the heat, which can further improve the heat dissipation efficiency compared to air heat dissipation.

[0050] The inner cavity of the housing body 1 is provided with a temperature detector 5, which is used to detect the heating condition of the inner cavity components, detect the amount of heat generated, and provide real-time temperature data. The controller controls the flow speed of the liquid medium in the heat dissipation channel 2 according to the detection signal of the temperature detector 5. When the temperature is high, the flow speed is increased to improve the heat absorption capacity, and when the temperature is low, the liquid flow speed is reduced to meet the heat dissipation requirements and avoid energy waste.

[0051] Combination Figure 5 As shown, the liquid cooling joint 4 includes a fixing plate 41 and a pipe connection column 42. The fixing plate 41 is provided with a plurality of through holes. The fixing plate 41 is used to be fixedly assembled with the shell body 1, for example, it can be fixedly assembled with the shell body 1 by screws. The pipe connection column 42 is used to connect with an external delivery pipeline to form a channel for liquid flow. The fixing plate 41 is provided with an opening consistent with the shape of the heat dissipation channel 2, so as to be connected with the heat dissipation channel 2. A sealing rubber ring can be provided between the fixing plate 41 and the shell body 1.

[0052] Based on any of the above technical solutions and their combination, Figures 1 to 5 As shown, the shell body 1 of the present invention includes a first end shell 11, an intermediate shell 12, and a second end shell 13. The first end shell 11, the intermediate shell 12, and the second end shell 13 are three structures independently arranged from each other. The first end shell 11, the intermediate shell 12, and the second end shell 13 are butt-jointed in sequence. The front and rear ends of the intermediate shell 12 are butt-jointed with the first end shell 11 and the second end shell 13, respectively, and the three are fixedly assembled by tension bolts. The first end shell 11 and the intermediate shell 12, the intermediate shell 12 and the second end shell 13 are butt-jointed to form an inner cavity for installing components. A heat dissipation channel 2 is provided through the intermediate shell 12. The shell body 1 adopts a split assembly structure, which can be conveniently connected and assembled. Different components are respectively installed on the first end shell 11, the intermediate shell 12, and the second end shell 13, and then the three are assembled and fixed. In addition, combined with Figure 6 As shown, the housing body 1 can also be an integral housing, which needs to be equipped with a cover body, and this structure should also be included in the protection scope of the present invention.

[0053] In the movement heat dissipation structure of the present invention, the inner cavity of the housing body 1 is completely closed, so there is no need to worry about dust adhering to the components in the inner cavity affecting the heat dissipation effect. It can be equipped with air cooling accessories or liquid cooling accessories at the same time, and achieve a higher heat dissipation effect through an external air cooling or liquid cooling circulation system.

[0054] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A movement heat dissipation structure, characterized in that: It comprises a shell body (1), the inner cavity of the shell body (1) is used to install components, a heat dissipation channel (2) is arranged on the shell body (1), the inlet end and the outlet end of the heat dissipation channel (2) are respectively connected to the outside, and the heat dissipation channel (2) and the inner cavity of the shell body (1) are isolated from each other; At least part of the heat-generating components in the inner cavity of the housing body (1) are heat-conductingly mounted on the side walls constituting the heat dissipation channel (2).

2. The core heat dissipation structure according to claim 1, characterized in that: The heat dissipation channel (2) is arranged to penetrate along a straight line direction.

3. The core heat dissipation structure according to claim 2, characterized in that: The width of the heat dissipation channel (2) is narrow in the middle and wide at both ends, so as to form a space between the outer wall in the middle of the heat dissipation channel (2) and the side wall of the housing body (1) for allowing the connection line to pass through.

4. The core heat dissipation structure according to claim 2, characterized in that: The heat dissipation channel (2) is arranged to be vertically penetrating.

5. The core heat dissipation structure according to claim 1, characterized in that: A heat dissipation fin is arranged in the heat dissipation channel (2), and the surface of the heat dissipation fin is parallel to the central axis of the heat dissipation channel (2).

6. The core heat dissipation structure according to any one of claims 1 to 5, characterized in that: An air driving device (3) is detachably mounted on the outside of the housing body (1), and the air driving device (3) is mounted at the inlet end or the outlet end of the heat dissipation channel (2) to allow air to flow through the heat dissipation channel (2) from the inlet end to the outlet end; A temperature detector (5) is disposed in the inner cavity of the shell body (1), and a controller controls the air flow speed in the heat dissipation channel (2) according to a detection signal from the temperature detector (5).

7. The core heat dissipation structure according to claim 6, characterized in that: A first guide air duct (31) and a second guide air duct (32) which are connected to each other are arranged inside the air driving device (3); the second guide air duct (32) is directly opposite to the heat dissipation channel (2); the first guide air duct (31) is perpendicular to the second guide air duct (32); the second guide air duct (32) is parallel to the air intake direction of the air driving device (3); and the cross-sectional area of ​​the second guide air duct (32) is equal to the cross-sectional area of ​​the heat dissipation channel (2).

8. The core heat dissipation structure according to any one of claims 1 to 5, characterized in that: A liquid cooling joint (4) is detachably mounted on the outside of the shell body (1), and one of the liquid cooling joints (4) is mounted on the inlet end and the outlet end of the heat dissipation channel (2), respectively, wherein one of the liquid cooling joints (4) is used to input cooling liquid into the inlet end of the heat dissipation channel (2), and the other of the liquid cooling joints (4) is used to discharge cooling liquid from the outlet end of the heat dissipation channel (2); A temperature detector (5) is arranged in the inner cavity of the shell body (1), and a controller controls the speed of the coolant in the heat dissipation channel (2) according to a detection signal of the temperature detector (5).

9. The core heat dissipation structure according to claim 8, characterized in that: The liquid cooling joint (4) comprises a fixing plate (41) and a pipe connection column (42), wherein the fixing plate (41) is used for being fixedly assembled with the shell body (1), and the pipe connection column (42) is used for being connected to an external delivery pipeline.

10. The core heat dissipation structure according to any one of claims 1 to 5, characterized in that: The housing body (1) comprises a first end shell (11), an intermediate shell (12), and a second end shell (13); the front and rear ends of the intermediate shell (12) are respectively butt-jointed with the first end shell (11) and the second end shell (13); The first end shell (11) and the middle shell (12), as well as the middle shell (12) and the second end shell (13) are butt-jointed to form an inner cavity for mounting components; the heat dissipation channel (2) is provided through the middle shell (12).

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