Multi-channel heat pipe heat exchange device of space camera

Abstract

The invention relates to the technical field of optical remote sensing, in particular to a space camera multi-channel heat pipe heat exchange device which comprises a flexible heat conduction belt, a heat conduction plate and a heat pipe layer. The heat conduction plates comprise the upper heat conduction plate, the lower heat conduction plate and the middle heat conduction plate which are arranged in the horizontal direction, the upper heat conduction plate and the lower heat conduction plate are connected to the flexible heat conduction belt, and the middle heat conduction plate is arranged between the upper heat conduction plate and the lower heat conduction plate in a stacked mode so that a containing layer can be formed between the adjacent heat conduction plates. At least one heat pipe layer comprising an evaporation end heat pipe and at least one heat pipe layer comprising a condensation end heat pipe are respectively arranged on the accommodating layer; the types of the heat pipe layers of the adjacent containing layers are different, and the evaporation end heat pipes and the condensation end heat pipes are arranged in a staggered mode. Therefore, the size of the multichannel heat pipe heat exchange device for the space camera can be reduced, the weight is reduced, the heat exchange efficiency is improved, heat generated by heat dissipation equipment is quickly and effectively dissipated, and the space camera is ensured to stably and reliably operate under various working conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of optical remote sensing, and specifically provides a multi-channel heat pipe heat exchange device for a space camera. Background Art

[0002] In a space camera, to ensure the normal operation of heat-generating devices such as detectors and electrical boxes, it is necessary to transfer the heat of the heat-generating devices to the radiation radiator through heat pipes, and then dissipate the heat to the cold black space through the radiation radiator. As the volume of the space camera increases, the distance from the evaporation end to the condensation end of the heat pipe becomes longer, the heat pipe channels become complex, and the heat pipes usually need to be bent multiple times to avoid interference with structural components. This situation not only leads to a decrease in the heat transfer capacity of the heat pipe, but also makes the installation operation of the heat pipe difficult. In view of this, the heat pipe is usually divided into two parts, and a heat exchange device is added at a suitable intermediate position to connect the evaporation end and the condensation end, and the heat transfer from the evaporation end to the condensation end is achieved through the heat exchange device.

[0003] Traditional heat pipe heat exchange devices generally adopt a structural form with a split layout of the evaporation-end heat pipe and the condensation-end heat pipe. The cross-section of the heat pipe heat exchange device generally consists of an upper cover plate, a heat conducting plate, and a lower cover plate. The evaporation-end heat pipe and the condensation-end heat pipe are arranged on both sides of the heat conducting plate, and the heat is mainly transferred through the heat conducting plate. The above heat exchange device has the following two disadvantages: (1) Large volume and heavy weight. The evaporation-end heat pipe and the condensation-end heat pipe are arranged on both sides of the heat conducting plate, making the volume and weight of the heat pipe heat exchange device relatively large.

[0004] (2) Low heat exchange efficiency. Each evaporation-end heat pipe can exchange heat with at most two condensation-end heat pipes, and each condensation-end heat pipe can exchange heat with at most two evaporation-end heat pipes, resulting in low overall heat exchange efficiency of the heat pipe heat exchange device and difficult rapid and effective heat dissipation. Summary of the Invention

[0005] To solve the above problems, the present invention provides a multi-channel heat pipe heat exchange device for a space camera. By arranging the evaporation-end heat pipe and the condensation-end heat pipe in a compact and staggered layout in the heat pipe heat exchange device, the volume can be reduced, the weight can be lightened, and the heat exchange efficiency can be improved, so as to quickly and effectively dissipate the heat generated by the heat-generating device and ensure the stable and reliable operation of the space camera under various working conditions.

[0006] A multi-channel heat pipe heat exchange device for a space camera provided by the present invention specifically includes a flexible heat conduction belt, a heat conduction plate, and a heat pipe layer. The flexible heat conduction belt is a C-shaped structure including a first end and a second end; the heat conduction plate includes an upper heat conduction plate, a lower heat conduction plate, and an intermediate heat conduction plate arranged horizontally. The upper heat conduction plate is connected to the first end of the flexible heat conduction belt, the lower heat conduction plate is connected to the second end of the flexible heat conduction belt, and at least one intermediate heat conduction plate is stacked between the upper heat conduction plate and the lower heat conduction plate to form an accommodation layer between adjacent heat conduction plates; the heat pipe layer includes a plurality of evaporation-end heat pipes or a plurality of condensation-end heat pipes. At least one heat pipe layer including evaporation-end heat pipes and at least one heat pipe layer including condensation-end heat pipes are respectively arranged in the accommodation layer; wherein, the types of heat pipe layers in adjacent accommodation layers are different, and the evaporation-end heat pipes and condensation-end heat pipes in adjacent heat pipe layers are arranged alternately.

[0007] Preferably, a plurality of first heat pipe channels arranged in parallel are provided on the bottom surface of the upper heat conduction plate; a plurality of first assembly support ears are provided on the side surface of the upper heat conduction plate, and first light holes are provided on the first assembly support ears.

[0008] Preferably, a plurality of second heat pipe channels arranged in parallel are provided on the top surface of the lower heat conduction plate; a plurality of second assembly support ears are provided on the side surface of the lower heat conduction plate, and second light holes are provided on the second assembly support ears.

[0009] Preferably, the intermediate heat conduction plate is an M-shaped heat conduction plate; m a plurality of third heat pipe channels arranged in parallel are provided on the top surface of the M-shaped heat conduction plate, and m +1 third heat pipe channels arranged in parallel are provided on the bottom surface of the M-shaped heat conduction plate; wherein, the cross-section of the third heat pipe channel is semi-circular, and the center of the cross-section is located on the top surface of the M-shaped heat conduction plate; the cross-section of the fourth heat pipe channel is semi-circular, and the center of the cross-section is located on the bottom surface of the M-shaped heat conduction plate.

[0010] Preferably, the intermediate heat conduction plate is a W-shaped heat conduction plate; n a plurality of fifth heat pipe channels arranged in parallel are provided on the top surface of the W-shaped heat conduction plate, and n -1 sixth heat pipe channels arranged in parallel are provided on the bottom surface of the W-shaped heat conduction plate; wherein, the cross-section of the fifth heat pipe channel is semi-circular, and the center of the cross-section is located on the top surface of the W-shaped heat conduction plate; the cross-section of the sixth heat pipe channel is semi-circular, and the center of the cross-section is located on the bottom surface of the W-shaped heat conduction plate.

[0011] Preferably, above the M-shaped heat conducting plate is an upper heat conducting plate, and the number and positions of the third heat pipe channels correspond one by one to those of the first heat pipe channels; or below the M-shaped heat conducting plate is an M-shaped heat conducting plate, and the number and positions of the fourth heat pipe channels of the upper M-shaped heat conducting plate correspond one by one to those of the third heat pipe channels of the lower M-shaped heat conducting plate; or below the M-shaped heat conducting plate is a W-shaped heat conducting plate, and the number and positions of the fourth heat pipe channels correspond one by one to those of the fifth heat pipe channels; or below the W-shaped heat conducting plate is a W-shaped heat conducting plate, and the number and positions of the sixth heat pipe channels of the upper W-shaped heat conducting plate correspond one by one to those of the fifth heat pipe channels of the lower W-shaped heat conducting plate; or below the W-shaped heat conducting plate is a lower heat conducting plate, and the number and positions of the sixth heat pipe channels correspond one by one to those of the second heat pipe channels.

[0012] Preferably, multiple third sub-assembly lugs are arranged on the side surface of the M-shaped heat conducting plate. A first screw hole is provided at the top of the third sub-assembly lug, and a third clearance hole is provided at the bottom of the third sub-assembly lug; multiple fourth sub-assembly lugs are arranged on the side surface of the W-shaped heat conducting plate. A first mounting hole is provided at the top of the fourth sub-assembly lug, and a second mounting hole is provided at the bottom of the fourth sub-assembly lug.

[0013] Preferably, multiple general assembly lugs are arranged on the side surface of the W-shaped heat conducting plate, and general assembly clearance holes are provided on the general assembly lugs.

[0014] Preferably, the material of the flexible heat conducting belt is graphite; the flexible heat conducting belt includes multiple graphite structures.

[0015] Preferably, the material of the heat conducting plate is aluminum alloy.

[0016] Compared with the prior art, the present invention can achieve the following beneficial effects: (1) A multi-channel heat pipe heat exchange device for a space camera provided by the present invention can reduce the volume, reduce the weight, and improve the heat exchange efficiency by arranging the evaporation-end heat pipes and the condensation-end heat pipes with a compact and staggered layout in the heat pipe heat exchange device, so as to quickly and effectively dissipate the heat generated by the heat-generating equipment and ensure the stable and reliable operation of the space camera under various working conditions.

[0017] (2) A multi-channel heat pipe heat exchange device for a space camera provided by the present invention can directly conduct heat exchange between the upper heat conducting plate and the lower heat conducting plate by arranging a flexible heat conducting belt to connect the upper heat conducting plate and the lower heat conducting plate, and further conduct heat exchange between the upper heat pipe layer and the lower heat pipe layer, thereby improving the heat exchange efficiency.

[0018] (3) A multi-channel heat pipe heat exchange device for a space camera provided by the present invention stacks an M-shaped heat conducting plate and a W-shaped heat conducting plate with matching channel numbers in sequence, so that the evaporation-end heat pipes and the condensation-end heat pipes of adjacent heat pipe layers can be arranged staggeredly. Each evaporation-end heat pipe can exchange heat with at most four condensation-end heat pipes, and each condensation-end heat pipe can exchange heat with at most four evaporation-end heat pipes. The heat transfer is more concentrated and efficient, and a large amount of heat generated inside the space camera can be dissipated in time.

[0019] (4) A multi-channel heat pipe heat exchange device for a space camera provided by the present invention stacks an M-shaped heat conducting plate and a W-shaped heat conducting plate from top to bottom in sequence, forming a compact layout structure with fewer heat pipes in the heat pipe layers at the top and bottom of the multi-channel heat pipe heat exchange device for the space camera and more heat pipes in the heat pipe layers in the middle. It can reduce the volume and weight and adapt to the limited installation space of the space camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings: Figure 1 is a schematic structural diagram of a conventional heat pipe heat exchange device; Figure 2 is a schematic cross-sectional structural diagram of a conventional heat pipe heat exchange device; Figure 3 is a schematic structural diagram of a multi-channel heat pipe heat exchange device for a space camera provided by an embodiment of the present invention; Figure 4 is a schematic cross-sectional structural diagram of a multi-channel heat pipe heat exchange device for a space camera provided by an embodiment of the present invention; Figure 5 is a schematic structural diagram of a flexible heat conduction belt, an upper heat conducting plate and a lower heat conducting plate provided by an embodiment of the present invention; Figure 6 is a schematic cross-sectional structural diagram of a flexible heat conduction belt, an upper heat conducting plate and a lower heat conducting plate provided by an embodiment of the present invention; Figure 7 is a schematic structural diagram of the upper heat conducting plate provided by an embodiment of the present invention; Figure 8 is a schematic cross-sectional structural diagram of the upper heat conducting plate provided by an embodiment of the present invention; Figure 9 is a schematic structural diagram of the lower heat conducting plate provided by an embodiment of the present invention; Figure 10 is a schematic cross-sectional structural diagram of the lower heat conducting plate provided by an embodiment of the present invention; Figure 11 is a schematic structural diagram of the first M-shaped heat conducting plate of the present invention; Figure 12 It is a schematic cross-sectional structure diagram of the first M-shaped heat conduction plate of the present invention; Figure 13 It is a schematic structure diagram of the second M-shaped heat conduction plate of the present invention; Figure 14 It is a schematic cross-sectional structure diagram of the second M-shaped heat conduction plate of the present invention; Figure 15 It is a schematic structure diagram of the W-shaped heat conduction plate from the first perspective provided by the embodiment of the present invention; Figure 16 It is a schematic structure diagram of the W-shaped heat conduction plate from the second perspective provided by the embodiment of the present invention; Figure 17 It is a schematic cross-sectional structure diagram of the W-shaped heat conduction plate provided by the embodiment of the present invention.

[0021] The reference numerals therein include: 1' Evaporation end heat pipe, 2' Condensation end heat pipe, 3' Upper cover plate, 4' Heat conduction plate, 5' Lower cover plate; 1 Flexible heat conduction belt, 2 Upper heat conduction plate, 21 First heat pipe channel, 22 First sub-assembly ear, 23 First light hole, 3 Lower heat conduction plate, 31 Second heat pipe channel, 32 Second sub-assembly ear, 33 Second light hole, 41 M-shaped heat conduction plate, 411 Third heat pipe channel, 412 Fourth heat pipe channel, 413 Third sub-assembly ear, 414 First screw hole, 415 Third light hole, 42 W-shaped heat conduction plate, 421 Fifth heat pipe channel, 422 Sixth heat pipe channel, 423 Fourth sub-assembly ear, 424 First mounting hole, 425 Second mounting hole, 426 General assembly ear, 427 General assembly light hole, 5 Evaporation end heat pipe, 6 Condensation end heat pipe. Detailed implementation manners

[0022] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation to the present invention. Similar elements in different embodiments are labeled with related similar reference numerals. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present invention. However, those skilled in the art can easily recognize that some of these features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present invention are not shown or described in the specification, which is to avoid the core part of the present invention being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0023] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other to form various implementation manners. At the same time, the steps or actions in the method description can also be reordered or adjusted in an obvious manner by those skilled in the art. Therefore, the various sequences in the specification and drawings are only for clearly describing a certain embodiment and do not mean a necessary sequence, unless it is stated that a certain sequence must be followed.

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0026] As Figures 1 to 2 shown, in a space camera, a traditional heat pipe heat exchange device generally adopts a structural form with a split layout of an evaporation-end heat pipe 1' and a condensation-end heat pipe 2'. The cross-section of the heat pipe heat exchange device is generally composed of three parts: an upper cover plate 3', a heat conduction plate 4', and a lower cover plate 5'. The evaporation-end heat pipe 1' and the condensation-end heat pipe 2' are arranged on both sides of the heat conduction plate 4', and heat is mainly transferred through the heat conduction plate 4'.

[0027] The above heat pipe heat exchange device has the following two disadvantages: (1) The evaporation-end heat pipe 1' and the condensation-end heat pipe 2' are arranged on both sides of the heat conduction plate, making the volume and weight of the heat pipe heat exchange device relatively large.

[0028] (2) Each evaporation-end heat pipe 1' exchanges heat with at most two condensation-end heat pipes 2', and each condensation-end heat pipe 2' exchanges heat with at most two evaporation-end heat pipes 1', resulting in low overall heat exchange efficiency of the heat pipe heat exchange device and making it difficult to quickly and effectively dissipate heat.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0030] As Figures 3 to 6 shown, a multi-channel heat pipe heat exchange device for a space camera provided by an embodiment of the present invention specifically includes a flexible heat conduction belt 1, a heat conduction plate, and a heat pipe layer. The flexible heat conduction belt 1 is a C-shaped structure including a first end and a second end. The heat conduction plate includes an upper heat conduction plate 2, a lower heat conduction plate 3, and an intermediate heat conduction plate arranged in the horizontal direction. The upper heat conduction plate 2 is connected to the first end of the flexible heat conduction belt 1, and the lower heat conduction plate 3 is connected to the second end of the flexible heat conduction belt 1, so that heat can be directly exchanged between the upper heat conduction plate 2 and the lower heat conduction plate 3 through the flexible heat conduction belt 1, and further the upper heat pipe layer can exchange heat with the lower heat pipe layer, thereby improving the heat exchange efficiency.

[0031] As Figures 3 to 4 shown, at least one intermediate heat conduction plate is sequentially stacked between the upper heat conduction plate 2 and the lower heat conduction plate 3, so that the upper heat conduction plate 2 is in contact with the intermediate heat conduction plate below, adjacent intermediate heat conduction plates are in contact with each other, and the intermediate heat conduction plate is in contact with the lower heat conduction plate 3 below, and an accommodation layer is formed. The heat pipe layer includes a plurality of evaporation-end heat pipes 5 or a plurality of condensation-end heat pipes 6. At least one heat pipe layer including evaporation-end heat pipes 5 and at least one heat pipe layer including condensation-end heat pipes 6 are respectively arranged in the accommodation layer, so that the heat pipe layer can exchange heat with the heat conduction plates above and below, and further realize heat exchange between the evaporation-end heat pipes 5 and the condensation-end heat pipes 6 through the heat conduction plates.

[0032] As Figures 3 to 4 shown, the types of heat pipe layers in adjacent accommodation layers are different, which is used to realize heat exchange between the heat pipe layer including evaporation-end heat pipes 5 and the heat pipe layer including condensation-end heat pipes 6. The evaporation-end heat pipes 5 and the condensation-end heat pipes 6 in adjacent heat pipe layers are staggered, so that each evaporation-end heat pipe 5 can exchange heat with at most four condensation-end heat pipes 6 on the upper left, lower left, upper right, and lower right sides respectively; each condensation-end heat pipe 6 can exchange heat with at most four evaporation-end heat pipes 5 on the upper left, lower left, upper right, and lower right sides respectively, thereby improving the heat exchange efficiency.

[0033] Therefore, by arranging the evaporation-end heat pipes 5 and the condensation-end heat pipes 6 in a compact and staggered layout, the volume of the heat pipe heat exchange device can be reduced, the weight can be reduced, the heat exchange efficiency can be improved, the heat generated by the heat-generating equipment can be quickly and effectively dissipated, and the stable and reliable operation of the space camera under various working conditions can be ensured.

[0034] Among them, the first end of the flexible heat conduction belt 1 is the top end of the C-shaped opening side, and the second end is the bottom end of the C-shaped opening side. Preferably, the upper heat conduction plate 2 is welded to the first end of the flexible heat conduction belt 1, and the lower heat conduction plate 3 is welded to the second end of the flexible heat conduction belt 1.

[0035] As Figures 7 to 8 shown, a plurality of first heat pipe channels 21 arranged in parallel are opened on the bottom surface of the upper heat conduction plate 2 for accommodating the evaporation end heat pipe 5 or the condensation end heat pipe 6. A plurality of first assembled lugs 22 are arranged on the side surface of the upper heat conduction plate 2, and first light holes 23 are opened on the first assembled lugs 22 for connecting with other heat conduction plates.

[0036] As Figures 9 to 10 shown, a plurality of second heat pipe channels 31 arranged in parallel are opened on the top surface of the lower heat conduction plate 3 for accommodating the evaporation end heat pipe 5 or the condensation end heat pipe 6. A plurality of second assembled lugs 32 are arranged on the side surface of the lower heat conduction plate 3, and second light holes 33 are opened on the second assembled lugs 32 for connecting with other heat conduction plates.

[0037] As Figures 11 to 14 shown, in some possible embodiments, the middle heat conduction plate is an M-shaped heat conduction plate 41. A plurality of m ( m = 1, 2, 3...) parallel third heat pipe channels 411 are opened on the top surface of the M-shaped heat conduction plate 41, and a plurality of m + 1( m = 1, 2, 3...) parallel fourth heat pipe channels 412 are opened on the bottom surface of the M-shaped heat conduction plate 41 for accommodating the evaporation end heat pipe 5 or the condensation end heat pipe 6. Among them, the cross-section of the third heat pipe channel 411 is semicircular, and the center of the cross-section is located on the top surface of the M-shaped heat conduction plate 41, so that the third heat pipe channel 411 can exactly accommodate one-half of the bottom of the evaporation end heat pipe 5 or the condensation end heat pipe 6. The cross-section of the fourth heat pipe channel 412 is semicircular, and the center of the cross-section is located on the bottom surface of the M-shaped heat conduction plate 41, so that the fourth heat pipe channel 412 can exactly accommodate one-half of the top of the evaporation end heat pipe 5 or the condensation end heat pipe 6.

[0038] As Figure 3 、 Figures 15 to 17 shown, in some possible embodiments, the middle heat conduction plate is a W-shaped heat conduction plate 42. A plurality of n ( n = 2, 3, 4...) parallel fifth heat pipe channels 421 are opened on the top surface of the W-shaped heat conduction plate 42, and a plurality of n - 1( n= 2, 3, 4,...) parallelly arranged sixth heat pipe channels 422 for accommodating the evaporation-end heat pipes 5 or the condensation-end heat pipes 6. Among them, the cross-section of the fifth heat pipe channel 421 is semi-circular, and the center of the cross-section is located on the top surface of the W-shaped heat conducting plate 42, so that the fifth heat pipe channel 421 can exactly accommodate half of the bottom of the evaporation-end heat pipe 5 or the condensation-end heat pipe 6. The cross-section of the sixth heat pipe channel 422 is semi-circular, and the center of the cross-section is located on the bottom surface of the W-shaped heat conducting plate 42, so that the sixth heat pipe channel 422 can exactly accommodate half of the top of the evaporation-end heat pipe 5 or the condensation-end heat pipe 6.

[0039] As Figure 4 , Figures 7 to 17 shown, in some possible embodiments, above the M-shaped heat conducting plate 41 may be the upper heat conducting plate 2, and the third heat pipe channels 411 are provided corresponding to the first heat pipe channels 21 in number and position one by one, so that the third heat pipe channels 411 can form a complete channel with the first heat pipe channels 21 to accommodate the heat pipe layer.

[0040] In some possible embodiments, below the M-shaped heat conducting plate 41 may be the M-shaped heat conducting plate 41, and the fourth heat pipe channels 412 of the upper M-shaped heat conducting plate 41 are provided corresponding to the third heat pipe channels 411 of the lower M-shaped heat conducting plate 41 in number and position one by one, so that the upper fourth heat pipe channels 412 can form a complete channel with the lower third heat pipe channels 411 to accommodate the heat pipe layer. Below the M-shaped heat conducting plate 41 may also be the W-shaped heat conducting plate 42, and the fourth heat pipe channels 412 are provided corresponding to the fifth heat pipe channels 421 in number and position one by one, so that the fourth heat pipe channels 412 can form a complete channel with the fifth heat pipe channels 421 to accommodate the heat pipe layer.

[0041] In some possible embodiments, below the W-shaped heat conducting plate 42 may be the W-shaped heat conducting plate 42, and the sixth heat pipe channels 422 of the upper W-shaped heat conducting plate 42 are provided corresponding to the fifth heat pipe channels 421 of the lower W-shaped heat conducting plate 42 in number and position one by one, so that the upper sixth heat pipe channels 422 can form a complete channel with the lower fifth heat pipe channels 421 to accommodate the heat pipe layer. Below the W-shaped heat conducting plate 42 may also be the lower heat conducting plate 3, and the sixth heat pipe channels 422 are provided corresponding to the second heat pipe channels 31 in number and position one by one, so that the sixth heat pipe channels 422 can form a complete channel with the second heat pipe channels 31 to accommodate the heat pipe layer.

[0042] That is to say, by sequentially stacking intermediate heat conduction plates with the same number of channels, the evaporation-end heat pipes 5 and condensation-end heat pipes 6 of adjacent heat pipe layers can be staggered. Each evaporation-end heat pipe 5 can exchange heat with at most four condensation-end heat pipes 6, and each condensation-end heat pipe 6 can exchange heat with at most four evaporation-end heat pipes 5. The heat transfer is more concentrated and efficient, and a large amount of heat generated inside the space camera can be dissipated in a timely manner.

[0043] Among them, the M-shaped heat conduction plates 41 and W-shaped heat conduction plates 42 are sequentially stacked to form a compact layout structure with fewer heat pipes in the heat pipe layers at the top and bottom of the multi-channel heat pipe heat exchange device of the space camera and more heat pipes in the heat pipe layer in the middle, which can reduce the volume and weight and adapt to the limited installation space of the space camera.

[0044] Such as Figures 11 to 17 As shown, a plurality of third sub-assembly lugs 413 are arranged on the side surface of the M-shaped heat conduction plate 41. A first screw hole 414 is opened at the top of the third sub-assembly lug 413, and a third light hole 415 is opened at the bottom of the third sub-assembly lug 413. A plurality of fourth sub-assembly lugs 423 are arranged on the side surface of the W-shaped heat conduction plate 42. A first mounting hole 424 is opened at the top of the fourth sub-assembly lug 423, and a second mounting hole 425 is opened at the bottom of the fourth sub-assembly lug 423.

[0045] Specifically, for the M-shaped heat conduction plate 41, when the upper heat conduction plate 2 is above the M-shaped heat conduction plate 41, the first screw hole 414 is used to connect with the first light hole 23, so as to connect the M-shaped heat conduction plate 41 to the upper heat conduction plate 2. When the lower heat conduction plate is the M-shaped heat conduction plate 41, the third light hole 415 of the upper M-shaped heat conduction plate 41 is used to connect with the first screw hole 414 of the lower M-shaped heat conduction plate 41, so as to connect adjacent M-shaped heat conduction plates 41. When the lower heat conduction plate is the W-shaped heat conduction plate 42, the third light hole 415 is used to connect with the first mounting hole 424, so as to connect the M-shaped heat conduction plate 41 to the W-shaped heat conduction plate 42.

[0046] For the W-shaped heat conduction plate 42, when the lower heat conduction plate is the W-shaped heat conduction plate 42, the second mounting hole 425 of the upper W-shaped heat conduction plate 42 is used to connect with the first mounting hole 424 of the lower W-shaped heat conduction plate 42, so as to connect adjacent W-shaped heat conduction plates 42. When the lower heat conduction plate is the lower heat conduction plate 3, the second mounting hole 425 is used to connect with the second light hole 33, so as to connect the W-shaped heat conduction plate 42 to the lower heat conduction plate 3.

[0047] Such as Figures 15 to 17 As shown, a plurality of general assembly lugs 426 are arranged on the side surface of the W-shaped heat conduction plate 42. A general assembly light hole 427 is opened on the general assembly lug 426, and the general assembly light hole 427 is used to connect the multi-channel heat pipe heat exchange device of the space camera to the space camera, so as to dissipate heat from the space camera.

[0048] In some possible embodiments, the flexible heat conducting belt 1 is made of graphite, so that the flexible heat conducting belt 1 has good heat conducting performance. The flexible heat conducting belt 1 includes a multi-layer graphite structure, and the multi-layer graphite structure can further improve the heat conducting performance of the flexible heat conducting belt 1.

[0049] In some possible embodiments, since the aluminum alloy material has a high heat conductivity, the upper heat conducting plate 2, the lower heat conducting plate 3 and the middle heat conducting plate are all made of aluminum alloy.

[0050] Embodiment: A multi-channel heat pipe heat exchange device for a space camera includes a flexible heat conducting belt 1, a heat conducting plate and a heat pipe layer. The flexible heat conducting belt 1 is a C-shaped structure including a first end and a second end. The flexible heat conducting belt 1 is made of graphite and adopts a multi-layer graphite structure. The heat conducting plate is made of aluminum alloy and includes an upper heat conducting plate 2, a lower heat conducting plate 3, two M-shaped heat conducting plates 41 and a W-shaped heat conducting plate 42 arranged horizontally. The upper heat conducting plate 2 is welded to the first end of the flexible heat conducting belt 1, and the lower heat conducting plate 3 is welded to the second end of the flexible heat conducting belt 1. The two M-shaped heat conducting plates 41 and a W-shaped heat conducting plate 42 are stacked between the upper heat conducting plate 2 and the lower heat conducting plate 3, so that four accommodation layers are formed from top to bottom between adjacent heat conducting plates. Each heat pipe layer includes an evaporation-end heat pipe 5 or a condensation-end heat pipe 6. Specifically, the first accommodation layer and the third accommodation layer from top to bottom are evaporation-end heat pipes 5, and the second accommodation layer and the fourth accommodation layer are condensation-end heat pipes 6.

[0051] Among them, the bottom surface of the upper heat conducting plate 2 is provided with 4 first heat pipe channels 21 arranged in parallel, and the top surface of the lower heat conducting plate 3 is provided with 5 second heat pipe channels 31 arranged in parallel. The first and second middle heat conducting plates below the upper heat conducting plate 2 are both M-shaped heat conducting plates 41. The top surface of the first M-shaped heat conducting plate 41 is provided with 4 third heat pipe channels 411 arranged in parallel, and the bottom surface is provided with 5 fourth heat pipe channels 412 arranged in parallel. The top surface of the second M-shaped heat conducting plate 41 is provided with 5 third heat pipe channels 411 arranged in parallel, and the bottom surface is provided with 6 fourth heat pipe channels 412 arranged in parallel. The third middle heat conducting plate below the upper heat conducting plate 2 is a W-shaped heat conducting plate 42. The top surface of the W-shaped heat conducting plate 42 is provided with 6 fifth heat pipe channels 421 arranged in parallel, and the bottom surface is provided with 5 sixth heat pipe channels 422 arranged in parallel. Thus, the evaporation-end heat pipes 5 and the condensation-end heat pipes 6 of adjacent heat pipe layers are arranged in a staggered manner.

[0052] Due to the staggered arrangement of the evaporation-end heat pipes 5 and the condensation-end heat pipes 6 in adjacent heat pipe layers, each evaporation-end heat pipe 5 can exchange heat with at most four condensation-end heat pipes 6, and each condensation-end heat pipe 6 can exchange heat with at most four evaporation-end heat pipes 5. The heat transfer is more concentrated and efficient, and a large amount of heat generated inside the space camera can be dissipated in a timely manner. Moreover, by stacking the M-shaped heat conducting plates 41 and the W-shaped heat conducting plates 42 in sequence, a compact layout structure can be formed, in which the number of heat pipes in the heat pipe layers at the top and bottom is small, and the number of heat pipes in the heat pipe layer in the middle is large, reducing the volume and weight of the multi-channel heat pipe heat exchange device of the space camera and adapting to the limited installation space of the space camera.

[0053] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0054] The specific embodiments of the present invention above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A multi-channel heat pipe heat exchange device for a space camera, characterized in that Comprising: A flexible heat conduction belt (1), the flexible heat conduction belt (1) being a C-shaped structure including a first end and a second end; A heat conduction plate, the heat conduction plate including an upper heat conduction plate (2), a lower heat conduction plate (3) and an intermediate heat conduction plate arranged in the horizontal direction, the upper heat conduction plate (2) being connected to the first end of the flexible heat conduction belt (1), the lower heat conduction plate (3) being connected to the second end of the flexible heat conduction belt (1), and at least one of the intermediate heat conduction plates being stacked between the upper heat conduction plate (2) and the lower heat conduction plate (3) to form a receiving layer between adjacent heat conduction plates; A heat pipe layer, the heat pipe layer including a plurality of evaporation end heat pipes (5) or a plurality of condensation end heat pipes (6), at least one layer of the heat pipe layer including the evaporation end heat pipes (5) and at least one layer of the heat pipe layer including the condensation end heat pipes (6) being respectively arranged in the receiving layer; Wherein, the types of the heat pipe layers in adjacent receiving layers are different, and the evaporation end heat pipes (5) and the condensation end heat pipes (6) in adjacent heat pipe layers are arranged in an interleaved manner.

2. The multi-channel heat pipe heat exchange device for a space camera according to claim 1, characterized in that: A plurality of first heat pipe channels (21) arranged in parallel are formed on the bottom surface of the upper heat conduction plate (2); A plurality of first assembly lugs (22) are arranged on the side surface of the upper heat conduction plate (2), and first light holes (23) are formed in the first assembly lugs (22).

3. The multi-channel heat pipe heat exchange device for a space camera according to claim 2, characterized in that: A plurality of second heat pipe channels (31) arranged in parallel are formed on the top surface of the lower heat conduction plate (3); A plurality of second assembly lugs (32) are arranged on the side surface of the lower heat conduction plate (3), and second light holes (33) are formed in the second assembly lugs (32).

4. The multi-channel heat pipe heat exchange device for a space camera according to claim 3, characterized in that: The intermediate heat conduction plate is an M-shaped heat conduction plate (41); The top surface of the M-shaped heat conducting plate (41) is provided with m third heat pipe channels (411) arranged in parallel, and the bottom surface of the M-shaped heat conducting plate (41) is provided with m +1 fourth heat pipe channels (412) arranged in parallel; Wherein, the cross-section of the third heat pipe channel (411) is semi-circular, and the center of the cross-section is located on the top surface of the M-shaped heat conduction plate (41); the cross-section of the fourth heat pipe channel (412) is semi-circular, and the center of the cross-section is located on the bottom surface of the M-shaped heat conduction plate (41).

5. The multi-channel heat pipe heat exchange device for a space camera according to claim 4, characterized in that: The intermediate heat conduction plate is a W-shaped heat conduction plate (42); The top surface of the W-shaped heat conducting plate (42) is provided with n fifth heat pipe channels (421) arranged in parallel, and the bottom surface of the W-shaped heat conducting plate (42) is provided with n -1 sixth heat pipe channels (422) arranged in parallel; Wherein, the cross-section of the fifth heat pipe channel (421) is semi-circular, and the center of the cross-section is located on the top surface of the W-shaped heat conduction plate (42); the cross-section of the sixth heat pipe channel (422) is semi-circular, and the center of the cross-section is located on the bottom surface of the W-shaped heat conduction plate (42).

6. The multi-channel heat pipe heat exchange device for a space camera according to claim 5, characterized in that: The upper heat conduction plate (2) is above the M-shaped heat conduction plate (41), and the number and positions of the third heat pipe channels (411) correspond one by one to those of the first heat pipe channels (21); Or below the M-shaped heat conducting plate (41) is the M-shaped heat conducting plate (41), and the number and positions of the fourth heat pipe channels (412) of the upper M-shaped heat conducting plate (41) correspond one by one to those of the third heat pipe channels (411) of the lower M-shaped heat conducting plate (41); Or below the M-shaped heat conducting plate (41) is the W-shaped heat conducting plate (42), and the number and positions of the fourth heat pipe channels (412) correspond one by one to those of the fifth heat pipe channels (421); Or below the W-shaped heat conducting plate (42) is the W-shaped heat conducting plate (42), and the number and positions of the sixth heat pipe channels (422) of the upper W-shaped heat conducting plate (42) correspond one by one to those of the fifth heat pipe channels (421) of the lower W-shaped heat conducting plate (42); Or below the W-shaped heat conducting plate (42) is the lower heat conducting plate (3), and the number and positions of the sixth heat pipe channels (422) correspond one by one to those of the second heat pipe channels (31).

7. The multi-channel heat pipe heat exchange device for a space camera according to claim 5, wherein: A plurality of third sub-assembly lugs (413) are arranged on the side surface of the M-shaped heat conducting plate (41). A first screw hole (414) is formed at the top of the third sub-assembly lug (413), and a third light hole (415) is formed at the bottom of the third sub-assembly lug (413); A plurality of fourth sub-assembly lugs (423) are arranged on the side surface of the W-shaped heat conducting plate (42). A first mounting hole (424) is formed at the top of the fourth sub-assembly lug (423), and a second mounting hole (425) is formed at the bottom of the fourth sub-assembly lug (423).

8. The multi-channel heat pipe heat exchange device for a space camera according to claim 7, wherein: A plurality of general assembly lugs (426) are arranged on the side surface of the W-shaped heat conducting plate (42), and general assembly light holes (427) are formed in the general assembly lugs (426).

9. The multi-channel heat pipe heat exchange device for a space camera according to claim 1, wherein: The material of the flexible heat conducting belt (1) is graphite; The flexible heat conducting belt (1) comprises a plurality of layers of graphite structures.

10. The multi-channel heat pipe heat exchange device for a space camera according to claim 1, wherein: The material of the heat conducting plate is aluminum alloy.

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