Vapor chamber and battery

Abstract

The utility model provides a vapor chamber and a battery. The vapor chamber comprises a plate body and a first reinforcing structure, the plate body is provided with an inner cavity, and the plate body comprises a first plate body and a second plate body which are oppositely arranged; the first reinforcing structure is connected to the first plate body and located in the inner cavity, a fluid channel is formed between the first reinforcing structure and the first plate body and / or the second plate body, and the fluid channel is used for working medium fluid in the inner cavity to flow. The utility model aims to solve the technical problems that the inner space of the vapor chamber is reduced, the working medium fluid capable of being accommodated is reduced and the performance of the vapor chamber is reduced due to the fact that the reinforcing ribs of the existing vapor chamber occupy a large space.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a heat spreader and a battery. Background Art

[0002] A vapor chamber is a phase change heat transfer element that uses the latent heat of phase change of the working fluid to carry away heat. It is the most promising thermal management method to solve the heat dissipation problem of products and equipment. At present, vapor chambers are mainly used for heat dissipation of electronic equipment. They have excellent thermal conductivity, a large heat transfer area and good temperature uniformity; in particular, they are ultra-thin, and the external dimensions can be adjusted according to actual heat dissipation needs. In related technologies, in order to increase the strength of the vapor chamber, reinforcing ribs are often provided inside the vapor chamber for support. These reinforcing ribs have a high density, small gaps, and occupy more space, resulting in a reduction in the internal space of the vapor chamber and a reduction in the amount of working fluid that can be accommodated, resulting in a reduction in the performance of the vapor chamber. Utility Model Content

[0003] The embodiments of the present invention provide a vapor chamber and a battery, aiming to solve the technical problem that the reinforcing ribs of the existing vapor chamber occupy a lot of space, resulting in a reduction in the internal space of the vapor chamber, a reduction in the amount of working fluid that can be accommodated, and a reduction in the performance of the vapor chamber.

[0004] In a first aspect, an embodiment of the present invention provides a vapor chamber, comprising:

[0005] A plate body is provided with an inner cavity, wherein the plate body comprises a first plate body and a second plate body arranged opposite to each other; and

[0006] The first reinforcement structure is connected to the first plate body and is located in the inner cavity. A fluid channel is formed between the first reinforcement structure and the first plate body and / or the second plate body. The fluid channel is used for the working fluid in the inner cavity to flow.

[0007] In one embodiment, the first reinforcement structure includes a first reinforcement plate, a second reinforcement plate and a plurality of partitions;

[0008] The first reinforcing plate and the second reinforcing plate are arranged opposite to each other and connected to each other to enclose a main channel extending along the length direction of the first plate body. The plurality of partitions are connected between the first reinforcing plate and the second reinforcing plate to divide the main channel into a plurality of sub-channels along the width direction of the first plate body. The plurality of sub-channels are used for the working fluid to pass through.

[0009] The fluid channel includes a plurality of sub-channels.

[0010] In one embodiment, the first reinforcement structure includes a first reinforcement plate, wherein a plurality of first grooves are formed on a side of the first reinforcement plate close to the first plate body, and the groove walls of the plurality of first grooves and the first plate body form a first channel, and the first channel is used for the working fluid to pass through;

[0011] Wherein, the fluid channel includes the first channel.

[0012] In one embodiment, the first reinforcement structure includes a first reinforcement plate, a plurality of second grooves are formed on a side of the first reinforcement plate facing away from the first plate body, and the groove walls of the plurality of second grooves and the second plate body form a second channel, and the second channel is used for the working fluid to pass through;

[0013] Wherein, the fluid channel includes the second channel.

[0014] In one embodiment, the first reinforcing structure includes a first reinforcing plate, the first reinforcing plate is concave and convex, a first fluid channel is provided on a side of the first reinforcing plate close to the first plate body, and a second fluid channel is provided on a side of the first reinforcing plate close to the second plate body.

[0015] In one embodiment, a third groove is provided on a side of the first reinforcing plate close to the first plate body, and the groove wall of the third groove and the first plate body form the first fluid channel;

[0016] A fourth groove is formed on a side of the first reinforcing plate close to the second plate body, and a groove wall of the fourth groove and the second plate body form the second fluid channel.

[0017] In one embodiment, the first reinforcing plate is integrally formed.

[0018] In one embodiment, the plate body comprises a stainless steel plate body; and / or,

[0019] The first reinforcement structure includes a first stainless steel reinforcement structure.

[0020] In one embodiment, the first reinforcing structure abuts against the second plate.

[0021] In a second aspect, an embodiment of the present invention provides a battery, including the above-mentioned vapor chamber, wherein the vapor chamber includes:

[0022] A plate body is provided with an inner cavity, wherein the plate body comprises a first plate body and a second plate body arranged opposite to each other; and

[0023] The first reinforcement structure is connected to the first plate body and is located in the inner cavity. A fluid channel is formed between the first reinforcement structure and the first plate body and / or the second plate body. The fluid channel is used for the working fluid in the inner cavity to flow.

[0024] Beneficial effects of the embodiments of the present utility model:

[0025] The vapor chamber provided by the present invention includes a plate body, the plate body forming an inner cavity, and a first reinforcement structure disposed within the inner cavity. The first reinforcement structure supports the plate body and enhances its structural strength. Furthermore, a fluid channel is formed between the first reinforcement structure and the first plate body and / or the second plate body, through which a working fluid within the inner cavity flows. Thus, the first reinforcement structure enhances the structural strength of the plate body without reducing the working fluid capacity of the inner cavity, thereby ensuring the performance of the vapor chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a structural schematic diagram of an embodiment of a vapor chamber provided by the present invention;

[0028] Figure 2 yes Figure 1 A schematic structural diagram of the first plate;

[0029] Figure 3 yes Figure 1 A schematic structural diagram of the second plate;

[0030] Figure 4 yes Figure 1 A schematic structural diagram of the first reinforcement structure;

[0031] Figure 5 yes Figure 4 A schematic diagram of an enlarged view of the first reinforcement structure shown at A in the middle;

[0032] Figure 6 yes Figure 4 A schematic diagram of an enlarged view of the second first reinforcement structure shown at A;

[0033] Figure 7 yes Figure 4 A schematic diagram of an enlarged view of the third first reinforcement structure shown at A;

[0034] Figure 8 yes Figure 4 A schematic diagram of an enlarged view of the fourth first reinforcement structure shown at A;

[0035] Figure 9 yes Figure 5 The enlarged schematic diagram shown in C.

[0036] Explanation of Figure Numbers

[0037]

[0038] DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0040] In related technologies, in order to increase the strength of the heat spreader, reinforcing ribs are often set inside the heat spreader for support. These reinforcing ribs have a high density, small gaps, and occupy more space, resulting in a reduction in the internal space of the heat spreader and a reduction in the amount of working fluid that can be accommodated, resulting in a decrease in the performance of the heat spreader.

[0041] In view of this, the present invention proposes a heat sink 100. Figures 1 to 9 This is a structural schematic diagram of an embodiment of the heat spreader 100 provided by the present invention. The heat spreader 100 provided by the present invention has strong structural strength, strong pressure bearing capacity, and excellent performance itself. The heat spreader 100 will be described in detail below in conjunction with the main drawings.

[0042] Example 1

[0043] See also Figure 1The vapor chamber 100 includes a plate body 101 and a first reinforcement structure 108. The plate body 101 has an inner cavity, and includes a first plate body 103 and a second plate body 104 disposed opposite each other. The first reinforcement structure 108 is connected to the first plate body 103 and is located within the inner cavity. A fluid channel is formed between the first reinforcement structure 108 and the first plate body 103 and / or the second plate body 104, and is used to allow the working fluid in the inner cavity to flow.

[0044] The vapor chamber 100 provided by the present invention includes a plate body 101, which defines an inner cavity. A first reinforcing structure 108 is disposed within the inner cavity. The first reinforcing structure 108 supports the plate body 101 and enhances its structural strength. Furthermore, a fluid channel is formed between the first reinforcing structure 108 and the first plate body 103 and / or the second plate body 104. The fluid channel allows the flow of the working fluid within the inner cavity. Thus, the first reinforcing structure 108 enhances the structural strength of the plate body 101 without reducing the amount of working fluid contained within the inner cavity, thereby ensuring that the performance of the vapor chamber 100 remains unchanged.

[0045] It should be noted that the compressive strength of the vapor chamber 100 is greater than or equal to 0.5 MPa. During use, the battery generates heat and expands. If the compressive strength of the vapor chamber 100 is less than 0.5 MPa, the vapor chamber 100 may be affected by the expansion force and may bend, deform, or even break.

[0046] The specific shape of the vapor chamber 100 is not limited and can be an "I"-shaped structure, an "L"-shaped structure, or a "T"-shaped structure (combining two "L"-shaped vapor chambers 100). The shape can be selected based on actual conditions. In this embodiment, for ease of description, the first reinforcement structure 108 is described in detail using an "L"-shaped vapor chamber 100 as an example.

[0047] In this example, see Figure 2 、 Figure 3 and Figure 4The first plate body 103 includes a first sub-plate body 105, a bent plate 107, and a second sub-plate body 106. The bent plate 107 is connected between the first sub-plate body 105 and the second sub-plate body 106. The second plate body 104 includes a third sub-plate body 126, a bent sub-plate 127, and a fourth sub-plate body 128. The bent sub-plate 127 is connected between the third sub-plate body 126 and the fourth sub-plate body 128. The third sub-plate body 126 corresponds to the first sub-plate body 105, the fourth sub-plate body 128 corresponds to the second sub-plate body 106, and the bent sub-plate 127 corresponds to the bent plate 107. The first reinforcement structure 108 includes a first section 109, a bent section 110 and a second section 111. The bent section 110 is connected between the first section 109 and the second section 111. The first section 109 corresponds to the first sub-plate 105 and the third sub-plate 126, and the second section 111 corresponds to the second sub-plate 106 and the fourth sub-plate 128. This arrangement increases the contact area of ​​the first reinforcement structure 108 and the first plate 103, thereby increasing the connection strength between the two.

[0048] For ease of processing, the first plate 103 and the second plate 104 are both initially flat plates, and the connection method of the first plate 103 and the second plate 104 is not limited. In some embodiments, the first plate 103 and the second plate 104 are first welded, and then the welded first plate 103 and the second plate 104 are bent. This arrangement facilitates the welding operation and reduces the difficulty of welding. In another embodiment, the first plate 103 and the second plate 104 are first bent so that the third sub-plate 126 corresponds to the first sub-plate 105, the fourth sub-plate 128 corresponds to the second sub-plate 106, and the bent sub-plate 127 corresponds to the bent plate 107. Then, the first plate 103 and the second plate 104 are welded together. This arrangement can improve the heat generation performance at the bent plate 107 and the bent sub-plate 127, avoid the loss of heat transfer performance at the bent plate 107 and the bent sub-plate 127, and improve the overall performance of the heat spreader 100.

[0049] In some embodiments, the cross-section of the curved section 110 is arc-shaped, which can disperse the force exerted on the vapor chamber 100 and improve the life of the vapor chamber 100 .

[0050] In some embodiments, see Figure 1The first plate 103 is the lower shell plate, and the second plate 104 is the upper shell plate. The upper shell plate and the lower shell plate are respectively formed with a first receiving groove and a second receiving groove. The upper shell plate and the lower shell plate are welded together so that the first receiving groove and the second receiving groove are connected to form an inner cavity. It should be noted that the specific position of the first reinforcement structure 108 is not limited, and it only needs to be located in the inner cavity. In the above embodiment, the first reinforcement structure 108 is provided on the first plate 103. Of course, the first reinforcement structure 108 can also be provided on the second plate 104. It can be selected according to actual conditions. Since the first plate 103 is the lower shell plate, the first reinforcement structure 108 is provided on the first plate 103, which makes it more convenient to weld the first plate 103 and the second plate 104.

[0051] In some embodiments, a working fluid is provided in the inner cavity for heat exchange. It should be noted that the type of working fluid in the above embodiments is not limited and can be selected based on actual application conditions. For example, the working fluid can be lubricating oil, water, cooling air, alcohol compounds, etc.

[0052] In this example, see Figure 5 and Figure 9 The first reinforcement structure 108 includes a first reinforcement plate c1, a second reinforcement plate c0, and multiple partitions a1. The first reinforcement plate c1 and the second reinforcement plate c0 are arranged opposite each other and connected to form a main channel extending along the length of the first plate body 103. The main channel is used for the flow of the working fluid. Furthermore, to increase the structural strength of the main channel, multiple partitions a1 are connected between the first reinforcement plate c1 and the second reinforcement plate c0 to divide the main channel into multiple sub-channels a2 along the width of the first plate body 103. The multiple sub-channels a2 are used to pass the working fluid. The fluid channel includes multiple sub-channels a2. In this way, the multiple sub-channels a2 are used for the passage of the working fluid, and the multiple partitions a1 provide support, thereby improving the structural strength of the heat spreader 100.

[0053] In some embodiments, the portion of the first reinforcing plate c1 corresponding to the bending section 110 is provided with a plurality of reinforcing rib groups 113, and the plurality of reinforcing rib groups 113 are arranged at intervals along the width direction of the first plate body 103. The function of the plurality of reinforcing rib groups 113 is to further increase the structural strength of the first plate body 103. At the same time, the purpose of providing the plurality of reinforcing rib groups 113 is to form a cavity between two adjacent reinforcing rib groups 113. During the bending process, the cavity can absorb part of the bending force to avoid the concentration of the bending force, which causes the heat spreader 100 to deform abnormally or even break.

[0054] In some embodiments, each rib group 113 includes a plurality of first ribs 114 spaced apart along the length of the first sub-plate 105. Each first rib 114 is oriented differently. During bending, each first rib 114 diffuses stress in a different direction, thereby avoiding stress concentration and preventing deformation or fracture of the vapor chamber 100. A first gap is formed between adjacent rib groups 113. The first gap is configured to allow for the flow of working fluid, thereby reducing the space occupied by the first reinforcement structure 108. More space for the working fluid improves the performance of the vapor chamber 100.

[0055] In some embodiments, the width of the first gap is 0.8mm to 3mm. It should be noted that when the width of the first gap is less than 0.8mm, the size of the first gap is too small and is prone to clogging, resulting in the first section 109 and the second section 111 being unable to communicate. When the size of the first gap is greater than 3mm, the strength of the heat spreader 100 will be insufficient, and it will be prone to deformation or even breakage. Specifically, the size of the first gap can be 0.8mm, 0.85mm, 0.9mm, 0.92mm, 0.95mm, 0.98mm, 1mm, 1.1mm, 1.4mm, 1.5mm, 1.8mm, 2mm, 2.2mm, 2.5mm, 2.7mm, 3mm or other unlisted values.

[0056] The connection method between the first reinforcement structure 108 and the first plate 103 is not limited. In some embodiments, the first reinforcement structure 108 and the first plate 103 are bent separately and then connected together. In another embodiment, the first reinforcement structure 108 and the first plate 103 are first connected together and then bent simultaneously.

[0057] In some embodiments, see Figure 1 The vapor chamber 100 further includes a plurality of wicks 119 extending along the length of the plate body 101 and spaced apart within the inner cavity along the width of the plate body 101. Specifically, a wick mounting channel 118 is formed between two adjacent rib groups 113. The wick mounting channel 118 extends along the length of the plate body 101 and is configured to receive the wicks 119. The wicks 119 absorb the working fluid and diffuse it into the inner cavity, allowing the fluid to fill the inner cavity and improve heat dissipation.

[0058] In some embodiments, the width of the wick mounting channel 118 is 14-20 mm. More specifically, the width of the wick mounting channel 118 can be 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, or other values ​​not specified.

[0059] In some embodiments, please refer to Figure 1 The heat sink 100 further includes a wire mesh 120 , which is disposed in the inner cavity and above the plurality of wicks 119 .

[0060] In some embodiments, see Figure 1 A liquid inlet 121 is also formed on the heat spreader 100. The liquid inlet 121 is connected to the inner cavity and is used to input the working fluid into the inner cavity.

[0061] In one embodiment, the plate body 101 comprises a stainless steel plate body, and the first reinforcement structure 108 comprises a first stainless steel reinforcement structure. Specifically, the plate body 101 is made of stainless steel, i.e., the first plate body 103 and the second plate body 104 are also made of stainless steel. Furthermore, the first reinforcement structure 108 is also made of stainless steel. Stainless steel is a material with low reactivity and generally does not react with other substances, resulting in good corrosion resistance. Furthermore, stainless steel has a strong structural strength and is not prone to deformation, thereby extending the service life of the vapor chamber 100. In this embodiment, the stainless steel is preferably 304 stainless steel.

[0062] Of course, in some other embodiments, in order to improve the corrosion resistance of the plate body 101, a protective layer is often provided on the outside of the plate body 101. The protective layer is wrapped around the outside of the plate body 101, so that the plate body 101 is isolated from the outside world, thereby preventing the plate body 101 from being corroded and improving the service life of the plate body 101. More specifically, the protective layer includes any one of a nickel layer, a chromium layer and a zinc layer. The nickel layer, the chromium layer and the zinc layer have poor activity and basically do not react with other substances. The protective layer is wrapped around the outside of the plate body 101 and can protect the plate body 101, forming a dense passivation film on the outer surface of the plate body 101, which effectively prevents the plate body 101 from reacting with other substances, thereby extending the service life of the heat spreader 100.

[0063] Likewise, in some embodiments, a protective layer may be provided on the outer side of the first reinforcement structure 108 . The specific configuration method may refer to the configuration method of the plate body 101 , and will not be described in detail here.

[0064] The present invention also provides a battery including a vapor chamber 100. The specific structure of the vapor chamber 100 is described in the above embodiments. Since the present battery adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0065] Specifically, in one embodiment, the battery further includes a battery housing, which is formed of a vapor chamber 100. That is, all six sides of the battery housing can be formed of vapor chambers 100. This arrangement can save space and improve space utilization. It should be noted that the six vapor chambers 100 can be interconnected or not, depending on the actual situation.

[0066] In some embodiments, the battery housing has six shell surfaces. The vapor chamber 100 can be applied to any one of the shell surfaces of the battery housing, or it can be applied to multiple shell surfaces simultaneously. For example, the vapor chamber 100 can be applied to two adjacent shell surfaces of the battery housing. Specifically, the first section 109 of the vapor chamber 100 corresponds to one shell surface, and the second section 111 of the vapor chamber 100 corresponds to another shell surface, so that the vapor chamber 100 can serve as both shell surfaces of the battery housing. The specific selection can be based on the size of the battery module.

[0067] In some other embodiments, the heat spreader 100 can also be used inside the battery. The battery includes a battery shell and a core pack group. The core pack group is installed in the battery shell. The core pack group includes at least one core pack. Specifically, the first section 109 of the heat spreader 100 corresponds to one side of the core pack, and the second section 111 of the heat spreader 100 corresponds to the other side of the core pack. Furthermore, in order to equalize the temperature of adjacent core packs, a heat spreader 100 can also be set between two adjacent core packs to achieve temperature balance on multiple sides, thereby transferring the temperature of the high-temperature part to the low-temperature part directly cooled by the cooling plate, thereby improving the cooling efficiency and avoiding thermal runaway.

[0068] In some other embodiments, the heat spreader 100 can also be used in a battery module, which includes multiple batteries. The first section 109 of the heat spreader 100 corresponds to one side of the battery casing, and the second section 111 of the heat spreader 100 corresponds to the other side of the battery casing. Furthermore, in order to equalize the temperature of adjacent batteries, a heat spreader 100 can also be set between two adjacent batteries to achieve temperature balance on multiple sides, thereby transferring the temperature of the high-temperature part to the low-temperature part for direct cooling by the cooling plate.

[0069] Example 2

[0070] The difference between Example 2 and Example 1 lies in the first reinforcement structure 108 , while the other structures are the same.

[0071] Specifically, in this embodiment, see Figure 6 The first reinforcing structure 108 includes a first reinforcing plate c1, and a plurality of first grooves c2 are formed on the side of the first reinforcing plate c1 close to the first plate body 103. Specifically, in actual operation, the first reinforcing plate c1 is first placed on a punching machine, and a plurality of first grooves c2 are punched out on the first reinforcing plate c1. The side with the plurality of first grooves c2 is connected to the first plate body 103, and the groove walls of the plurality of first grooves c2 and the first plate body 103 form a first channel. In this way, the groove walls of the plurality of first grooves c2 are used to support the heat spreader 100, and the first channel is used for the working fluid to pass through; in this way, the structural strength of the heat spreader 100 can be guaranteed, the first channel can be reserved for the working fluid to pass through, and too much space in the inner cavity will not be occupied, resulting in a decrease in the performance of the heat spreader 100.

[0072] In some embodiments, the first reinforcement structure 108 is integrally formed by stamping. Specifically, in actual operation, the first reinforcement structure 108 is first stamped and formed, and then the side of the first reinforcement structure 108 with the first groove c2 is welded to the first plate 103, and the other side is abutted against the second plate 104 (similarly, the other side can also be welded to the second plate 104), thereby fixing the first reinforcement structure 108 to the plate body 101.

[0073] In one embodiment, the first reinforcement structure 108 may also be integrally formed by aluminum extrusion. The specific operation steps of the aluminum extrusion integrally formed may refer to conventional settings in the art and will not be described in detail here.

[0074] The other structures of Example 2 can be set with reference to Example 1, and will not be described in detail here.

[0075] Example 3

[0076] The difference between Example 3 and Example 1 lies in the first reinforcement structure 108 , while the other structures are the same.

[0077] Specifically, in this embodiment, see Figure 7The first reinforcing structure 108 includes a first reinforcing plate c1, and a plurality of second grooves c3 are formed on the side of the first reinforcing plate c1 away from the first plate body 103. Specifically, in actual operation, the first reinforcing plate c1 is first placed on a punching machine, and a plurality of second grooves c3 are punched out on the first reinforcing plate c1. The side with the plurality of second grooves c3 is connected to the first plate body 103, and the groove walls of the plurality of second grooves c3 and the second plate body 104 form a second channel, and the second channel is used for the working fluid to pass through; in this way, the groove walls of the plurality of second grooves c3 are used to support the heat spreader 100, and the second channel is used for the working fluid to pass through; in this way, the structural strength of the heat spreader 100 can be guaranteed, and the reserved second channel for the working fluid to pass through will not occupy too much space in the inner cavity, resulting in a decrease in the performance of the heat spreader 100.

[0078] In some embodiments, the first reinforcement structure 108 is integrally formed by stamping. Specifically, in actual operation, the first reinforcement structure 108 is first stamped and formed, and then the side of the first reinforcement structure 108 with the second groove c3 is welded to the second plate 104, and the other side is abutted against the first plate 103 (similarly, the other side can also be welded to the first plate 103), thereby fixing the first reinforcement structure 108 to the plate body 101.

[0079] In one embodiment, the first reinforcement structure 108 may also be integrally formed by aluminum extrusion. The specific operation steps of the aluminum extrusion integrally formed may refer to conventional settings in the art and will not be described in detail here.

[0080] The other structures of Example 3 can be set with reference to Example 1, and will not be described in detail here.

[0081] Example 4

[0082] In this example, see Figure 8 The first reinforcing structure 108 includes a convex portion and a concave portion. The first reinforcing structure 108 includes a first reinforcing plate c1. The first reinforcing plate c1 is arranged in a concave and convex manner. Figure 8 Taking the first reinforcing plate c1 in FIG as an example, the portion closest to the first plate 103 is a convex portion, and the portion closest to the second plate 104 is a concave portion. A first fluid channel d1 is formed between the concave portion and the first plate 103, and a second fluid channel d2 is formed between the convex portion and the second plate 104. The first fluid channel d1 and the second fluid channel d2 are separated. In this embodiment, the concave and convex configuration of the first reinforcing plate c1 allows for efficient space utilization, reduces the space occupied by the first reinforcing structure 108, and improves cooling efficiency.

[0083] Furthermore, in this embodiment, the convex portion includes a third groove. The first reinforcing plate c1 is placed on a punching machine so that the side closest to the first plate body 103 is aligned with the punch. The third groove is punched into the first reinforcing plate c1 using the punch. The groove wall of the third groove and the first plate body 103 form a first fluid channel d1. Similarly, the concave portion includes a fourth groove. The side closest to the second plate body 104 is aligned with the punch. The fourth groove is punched into the first reinforcing plate c1 using the punch. The groove wall of the fourth groove and the second plate body 104 form a second fluid channel d2.

[0084] Furthermore, in some embodiments, the first reinforcement structure 108 is provided separately from the plate body 101, and the first reinforcement structure 108 is stamped and formed integrally. Specifically, in actual operation, the first reinforcement structure 108 is first stamped and formed, and then the convex portion of the first reinforcement structure 108 is welded to the first plate body 103, and the concave portion of the first reinforcement structure 108 is welded to the second plate body 104, thereby fixing the first reinforcement structure 108 to the plate body 101.

[0085] In one embodiment, the first reinforcement structure 108 may also be integrally formed by aluminum extrusion. The specific operation steps of the aluminum extrusion integrally formed may refer to conventional settings in the art and will not be described in detail here.

[0086] The other structures of Example 4 can be set with reference to Example 1 and will not be described in detail here.

[0087] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, based on the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A heat sink, characterized in that: include: A plate body is provided with an inner cavity, wherein the plate body comprises a first plate body and a second plate body arranged opposite to each other; and The first reinforcement structure is connected to the first plate body and is located in the inner cavity. A fluid channel is formed between the first reinforcement structure and the first plate body and / or the second plate body. The fluid channel is used for the working fluid in the inner cavity to flow.

2. The vapor chamber according to claim 1, wherein: The first reinforcement structure includes a first reinforcement plate, a second reinforcement plate and a plurality of partitions; The first reinforcing plate and the second reinforcing plate are arranged opposite to each other and connected to each other to enclose a main channel extending along the length direction of the first plate body. The plurality of partitions are connected between the first reinforcing plate and the second reinforcing plate to divide the main channel into a plurality of sub-channels along the width direction of the first plate body. The plurality of sub-channels are used for the working fluid to pass through. The fluid channel includes a plurality of sub-channels.

3. The vapor chamber according to claim 1, wherein: The first reinforcement structure includes a first reinforcement plate, wherein a plurality of first grooves are formed on a side of the first reinforcement plate close to the first plate body, and the groove walls of the plurality of first grooves and the first plate body form a first channel, and the first channel is used for the working fluid to pass through; Wherein, the fluid channel includes the first channel.

4. The vapor chamber according to claim 1, wherein: The first reinforcement structure includes a first reinforcement plate, wherein a plurality of second grooves are formed on a side of the first reinforcement plate facing away from the first plate body, and the groove walls of the plurality of second grooves and the second plate body form a second channel, and the second channel is used for the working fluid to pass through; Wherein, the fluid channel includes the second channel.

5. The vapor chamber according to claim 1, wherein: The first reinforcing structure includes a first reinforcing plate, which is concave and convex. A first fluid channel is provided on a side of the first reinforcing plate close to the first plate body, and a second fluid channel is provided on a side of the first reinforcing plate close to the second plate body.

6. The vapor chamber according to claim 5, wherein: A third groove is provided on a side of the first reinforcing plate close to the first plate body, and the groove wall of the third groove and the first plate body form the first fluid channel; A fourth groove is formed on a side of the first reinforcing plate close to the second plate body, and a groove wall of the fourth groove and the second plate body form the second fluid channel.

7. The vapor chamber according to claim 3, 4 or 5, wherein: The first reinforcing plate is integrally formed.

8. The vapor chamber according to any one of claims 1 to 6, wherein: The plate body comprises a stainless steel plate body; and / or, The first reinforcement structure includes a first stainless steel reinforcement structure.

9. The vapor chamber according to any one of claims 1 to 6, wherein: The first reinforcing structure abuts against the second plate.

10. A battery, characterized in that: The invention comprises a vapor chamber as described in any one of claims 1 to 9.

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