Battery pack

Abstract

The embodiment of the utility model provides a kind of battery pack, it is related to battery technical field.The embodiment of the utility model provides a kind of battery pack, by setting up and can be detached connection's cold plate body and alignment plate, with the alignment plate of pressure relief part is split from the cold plate body, so that when battery pack is assembled, the pressure relief part of alignment plate can be aligned with the explosion-proof valve of battery in advance, and after confirming that there is no shielding to explosion-proof valve, the assembled battery and cold plate are put into box;The cold plate thus arranged, on the one hand, can ensure the cooling effect of cold plate on battery;On the other hand, it can also ensure that the explosion-proof valve is not shielded and can be smoothly opened when the battery is in thermal runaway, thereby reducing the risk of heat diffusion.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a battery pack. Background Technology

[0002] Batteries are typically equipped with explosion-proof valves. When the internal pressure of the battery becomes too high, the explosion-proof valve opens to release pressure, thereby balancing the pressure inside and outside the battery and preventing it from exploding.

[0003] In battery modules of related technologies, the battery pack includes cooling features to prevent overheating and potential hazards during charging and discharging. Additionally, to ensure the explosion-proof valve can open, the cooling plate typically has openings corresponding to the valve's area. However, currently, the cooling plate is integrated into the casing, making it difficult to directly observe the alignment of the explosion-proof valve opening with the cooling plate opening during battery module assembly. This can lead to the explosion-proof valve being blocked by the cooling plate and unable to open when internal battery pressure is excessive. Utility Model Content

[0004] The purpose of this invention is to provide a battery pack that ensures that the explosion-proof valve is unobstructed and can open smoothly in the event of thermal runaway of the battery cell, thereby reducing the risk of thermal diffusion.

[0005] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides a battery pack, the battery pack comprising: Battery cell, the battery cell including an explosion-proof valve; The cold plate includes a separate cold plate body and an alignment plate. The cold plate body is thermally connected to the battery cell. The cold plate body has a slot. The alignment plate covers the slot and is connected to the cold plate body. The alignment plate is provided with a pressure relief section, the battery cell is connected to the alignment plate, and the explosion-proof valve is disposed opposite to the pressure relief section and located on the side close to the pressure relief section.

[0006] In an optional embodiment, the alignment plate is bonded to the cold plate body.

[0007] In an optional embodiment, the battery pack has a third direction, and the cold plate body has a first side and a second side disposed opposite to each other along the third direction; The cold plate body also includes a first limiting part, which is located in the slot and connected to the cold plate body. The first limiting part is located on the second side of the cold plate body. The alignment plate is located on the first side of the cold plate body and is limited and connected to the first limiting part of the cold plate body.

[0008] In an optional embodiment, the alignment plate has a third side and a fourth side disposed opposite to each other along the third direction, wherein the first side and the third side are located on the same side, and the second side and the fourth side are located on the same side. The alignment plate has a first groove, which is provided along the outer edge of the alignment plate and is located on the fourth side of the alignment plate. The first limiting part is connected to the first groove in a third direction.

[0009] In an optional embodiment, the battery pack has a third orientation, and the cold plate further includes a heat insulation component, which is disposed corresponding to and connected to the alignment plate; The alignment plate has a third side and a fourth side disposed opposite to each other along the third direction; the heat insulation member is disposed on the third side of the alignment plate; or, the heat insulation member is disposed on the fourth side of the alignment plate.

[0010] In an optional embodiment, the heat insulation component is provided with an easy-tear line corresponding to the edge of the pressure relief portion.

[0011] In an optional embodiment, the battery pack has a first direction and a second direction that are perpendicular to each other, the cold plate body is provided with a plurality of slots at intervals along the first direction, the plurality of battery cells respectively form a plurality of battery cell groups, and the plurality of battery cell groups are arranged at intervals along the first direction. Multiple alignment plates respectively cover multiple slots and are connected to the cold plate body. Multiple pressure relief parts are spaced apart on the alignment plates along the second direction. Multiple battery cells are arranged along the second direction. The explosion-proof valve of one battery cell is arranged opposite to one of the pressure relief parts. The pressure relief section at least partially covers the explosion-proof valve.

[0012] In an optional embodiment, the battery pack has a third orientation, and the battery further includes a housing with a receiving cavity, wherein the cold plate and the battery cell are disposed within the receiving cavity; The cold plate body has a first side and a second side that are oppositely arranged along the third direction, and the alignment plate and the battery cell are located on the first side of the cold plate body; The cold plate also includes at least two supports connected to the cold plate body. The at least two supports are spaced apart and located on the second side of the cold plate body. The at least two supports are supported between the cold plate body and the inner bottom wall of the housing.

[0013] In an optional embodiment, the bracket is provided with an exhaust port, which connects the exhaust channel and the receiving cavity.

[0014] In an optional embodiment, the cold plate further includes a heat insulation member, the alignment plate has a third side and a fourth side disposed opposite to each other along the third direction, the heat insulation member is connected to the alignment plate and located in the slot, and the heat insulation member is disposed on the fourth side of the alignment plate; The at least two supports are arranged opposite to the slot, and the heat insulation element is sandwiched between the alignment plate and the at least two supports.

[0015] The beneficial effects of the battery pack provided in this embodiment of the present invention include: By setting up a separate and detachably connected cold plate body and alignment plate, the alignment plate with pressure relief section is separated from the cold plate body. This allows the pressure relief section of the alignment plate to be pre-aligned with the explosion-proof valve of the battery cell during battery pack assembly. After confirming that there is no obstruction to the explosion-proof valve, the assembled battery cell and cold plate are then placed into the box. This cold plate setting ensures the cooling effect of the cold plate on the battery cell. On the other hand, it also ensures that the explosion-proof valve is unobstructed and can open smoothly in the event of thermal runaway of the battery cell, thereby reducing the risk of thermal diffusion. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of the battery module provided in this embodiment; Figure 2 An exploded view of the cold plate provided in this embodiment; Figure 3 This is a structural schematic diagram of the fourth side of the alignment plate provided in this embodiment; Figure 4 This is a schematic diagram of the first structure for aligning the battery cell module with the alignment plate provided in this embodiment; Figure 5 This is a bottom view showing the alignment of the battery cell module with the alignment plate provided in this embodiment; Figure 6 This is a schematic diagram of the structure in which the heat insulation component provided in this embodiment is disposed on the fourth side of the alignment plate; Figure 7 This is a schematic diagram of the structure in which the heat insulation component provided in this embodiment is disposed on the third side of the alignment plate; Figure 8 This is a first exploded view of the battery module provided in this embodiment; Figure 9This is a second exploded view of the battery module provided in this embodiment; Figure 10 This is a partial cross-sectional view of the battery module provided in this embodiment; Figure 11 This is a schematic diagram of the second structure provided in this embodiment, showing the alignment of the battery cell module with the alignment plate. Figure 12 This is a schematic diagram of the structure in which the battery cell module is aligned with the cold plate and the bracket in this embodiment.

[0018] Icons: 010 - Battery pack; X - First direction; Y - Second direction; Z - Third direction; 100-Cold plate; 110-Cold plate body; 111-Slot; 112-First limiting part; 113-First side; 114-Second side; 120-Alignment plate; 121-Pressure relief part; 122-First groove; 123-Third side; 124-Fourth side; 130-Heat insulation component; 131-Easy-tear line; 200-Battery cell assembly; 210-Battery cell; 211-Explosion-proof valve; 300-Box; 400-Bracket; 410-Exhaust hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0025] The following describes in detail the overall structure, working principle, and technical effects of the battery pack 010 provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0026] In this embodiment, the battery pack 010 has a first direction X, a second direction Y, and a third direction Z that are perpendicular to each other. The first direction X is the length direction of the battery pack 010 in this embodiment, the second direction Y is the width direction of the battery pack 010 in this embodiment, and the third direction Z is the height direction of the battery pack 010 in this embodiment.

[0027] Please refer to Figure 1 The present invention provides a battery pack 010, comprising: Battery cell 210, battery cell 210 includes explosion-proof valve 211; Cold plate 100 includes a separate cold plate body 110 and an alignment plate 120. The cold plate body 110 is thermally connected to the battery cell 210. The cold plate body 110 is provided with a slot 111. The alignment plate 120 covers the slot 111 and is connected to the cold plate body 110. The alignment plate 120 is provided with a pressure relief part 121, the battery cell 210 is connected to the alignment plate 120, and the explosion-proof valve 211 is arranged opposite to the pressure relief part 121 and located on the side close to the pressure relief part 121.

[0028] It is understandable that by setting up a separate and detachably connected cold plate body 110 and alignment plate 120, the alignment plate 120 with pressure relief part 121 is separated from the cold plate body 110. This allows the pressure relief part 121 of the alignment plate 120 to be pre-aligned with the explosion-proof valve 211 of the battery cell 210 during battery pack 010 assembly. After confirming that the explosion-proof valve 211 is unobstructed, the assembled battery cell 210 and cold plate 100 are then placed into the box. This configuration of the cold plate 100 ensures the cooling effect of the cold plate 100 on the battery cell 210. On the other hand, it also ensures that the explosion-proof valve 211 is unobstructed and can open smoothly in the event of thermal runaway of the battery cell 210, thereby reducing the risk of thermal diffusion.

[0029] In this embodiment, the battery pack 010 includes battery cells 210.

[0030] Please refer to Figures 4-5 The battery cell 210 is provided with an explosion-proof valve 211 on the Z-side of the third-party battery cell. The explosion-proof valve 211 is used to open when the internal pressure of the battery cell 210 continues to rise and exceeds the pressure resistance limit, so as to release the internal pressure of the battery cell 210 and thus avoid the battery cell 210 from exploding.

[0031] In this embodiment, the battery pack 010 includes a cold plate 100.

[0032] The cold plate 100 is used to dissipate heat from the battery cell 210.

[0033] In this embodiment, please refer to Figure 1 The cold plate 100 includes a separate cold plate body 110 and an alignment plate 120. The cold plate body 110 is thermally connected to the battery cell 210. The cold plate body 110 is provided with a slot 111. The alignment plate 120 covers the slot 111 and is connected to the cold plate body 110. The slot 111 forms an exhaust channel. The alignment plate 120 is provided with a pressure relief part 121. The battery cell 210 is connected to the alignment plate 121. The explosion-proof valve 211 is disposed opposite to the pressure relief part 121 and is located on the side close to the pressure relief part 121.

[0034] In one embodiment, please refer to Figures 1-2 and Figures 4-5 The cold plate body 110 has multiple slots 111 spaced apart along the first direction X. Multiple battery cells 210 are arranged to form multiple battery cell groups 200, which are spaced apart along the first direction X. Multiple alignment plates 120 cover the multiple slots 111 and are connected to the cold plate body 110. Multiple pressure relief parts 121 are spaced apart along the second direction Y. Multiple battery cells 210 are arranged along the second direction Y. The explosion-proof valve 211 of one battery cell 210 is arranged opposite to one pressure relief part 121.

[0035] Of course, in an alternative embodiment, a slot 111 can also be provided on the cold plate body 110, and the alignment plate 120 is provided accordingly; wherein, the battery cell 210 is also provided accordingly.

[0036] Of course, in another alternative embodiment, a slot 111 can also be provided on the cold plate body 110, and the alignment plate 120 is provided accordingly; multiple battery cells 210 are provided, and the multiple battery cells 210 respectively form multiple battery cell groups 200. The multiple battery cell groups 200 are spaced apart along the first direction X, and the multiple battery cells 210 are arranged along the second direction Y. The explosion-proof valves 211 of the multiple battery cells 210 are arranged opposite to the multiple pressure relief parts 121.

[0037] In this embodiment, the pressure relief section 121 covers at least a portion of the explosion-proof valve 211.

[0038] Optionally, the pressure relief part 121 can be a weak part such as a pressure relief through hole or a pressure relief groove. The opening area of ​​the pressure relief part 121 can cover all or part of the explosion-proof valves 211, so that when the explosion-proof valves 211 are opened to relieve pressure, the pressure relief part 121 can not block the opening of the explosion-proof valves 211.

[0039] In this embodiment, the alignment plate 120 and the cold plate body 110 are bonded together by means of adhesive or other methods.

[0040] In this embodiment, please refer to Figure 2 The cold plate body 110 has a first side 113 and a second side 114 disposed opposite to each other along the third direction Z; the cold plate body 110 also includes a first limiting part 112, the cold plate body 110 is located in the slot 111 and connected to the cold plate body 110, the first limiting part 112 is located on the second side 114 of the cold plate body 110; the alignment plate 120 is located on the first side 113 of the cold plate body 110 and is limitedly connected to the first limiting part 112 of the cold plate body 110.

[0041] Alternatively, please refer to Figures 2-3 The alignment plate 120 has a third side surface 123 and a fourth side surface 124 disposed opposite to each other along the third direction Z. The first side surface 113 and the third side surface 123 are located on the same side, and the second side surface 114 and the fourth side surface 124 are located on the same side. The alignment plate 120 has a first groove 122, which is disposed along the outer edge of the alignment plate 120 and is located on the fourth side surface 124 of the alignment plate 120. A first limiting part 112 is limited and connected to the first groove 122 along the third direction Z.

[0042] The first groove 122 of the alignment plate 120 is connected and fixed to the first limiting part 112 of the cold plate body 110 by adhesive bonding.

[0043] Of course, in some alternative embodiments, the alignment plate 120 may not have the first groove 122 provided, and may be directly connected and fixed to the first limiting part 112 of the cold plate body 110 by adhesive bonding.

[0044] In this embodiment, please refer to Figures 6-9 The cold plate 100 also includes a heat insulation component 130, which is disposed corresponding to and connected to the alignment plate 120. The heat insulation component 130 can be a heat insulation pad structure such as heat insulation foam. The heat insulation component 130 is used to insulate the cold plate 100 and the battery cell 210, preventing the battery cell 210 from conducting heat to the cold plate 100, and thus providing heat preservation for the battery cell 210.

[0045] In this embodiment, please refer to Figures 6-7 The heat insulation component 130 is provided with an easy-tear line 131 corresponding to the edge of the pressure relief part 121. When the explosion-proof valve 211 is opened, the explosion-proof valve 211 can be broken through the easy-tear line 131 of the heat insulation component 130.

[0046] Alternatively, please refer to Figures 7-8 The heat insulation component 130 is disposed on the third side 123 of the alignment plate 120, that is, the heat insulation component 130 is located between the cell 210 and the alignment plate 120.

[0047] Alternatively, please refer to Figure 6 and Figure 9 The cold plate body 110 is disposed on the fourth side 124 of the alignment plate 120, that is, the heat insulation member 130 is located between the alignment plate 120 and the first limiting part 112 of the cold plate body 110.

[0048] Optionally, the heat insulation component 130 can be connected and fixed to the alignment plate 120, the cold plate body 110, and the battery cell 210 by means of bonding or other methods.

[0049] In this embodiment, the battery also includes a housing 300.

[0050] Please refer to Figure 1 and Figures 8-9 The housing 300 has a receiving cavity, in which the cold plate 100 and the battery cell 210 are disposed.

[0051] In this embodiment, please refer to Figure 9 and Figure 12 The cold plate 100 also includes at least two supports 400 connected to the cold plate body 110; wherein the alignment plate 120 and the battery cell 210 are located on the first side 113 of the cold plate body 110; the at least two supports 400 are spaced apart and located on the second side 114 of the cold plate body 110, and the at least two supports 400 are supported between the cold plate body 110 and the inner bottom wall of the housing 300.

[0052] The bracket 400 can be connected and fixed to the second side 114 of the cold plate body 110 by welding or other means.

[0053] In this embodiment, please refer to Figure 12 The bracket 400 is provided with an exhaust hole 410, which connects the exhaust channel and the receiving cavity. There may be one exhaust hole 410 or multiple holes spaced apart.

[0054] It is understandable that the vent 410 connects the vent channel formed by the slot 111 with the receiving cavity, so that the vent 410 can vent when the cell 210 experiences thermal runaway.

[0055] In one embodiment, please refer to Figures 10-12 The heat insulation component 130 is connected to the alignment plate 120 and located in the slot 111. The heat insulation component 130 is disposed on the fourth side 124 of the alignment plate 120. At least two supports 400 are disposed opposite the slot 111, and the heat insulation component 130 is sandwiched between the alignment plate 120 and the at least two supports 400.

[0056] Please refer to Figure 10 and Figure 11 The alignment plate 120 is located on the first side 113 of the cold plate body 110 and is limited and connected to the first limiting part 112 of the cold plate body 110. Therefore, the thickness of the heat insulation member 130 needs to be greater than the thickness of the first limiting part 112.

[0057] It is understandable that by placing the heat insulation component 130 in the slot 111 and clamping and fixing the heat insulation component 130 with at least two brackets 400 and the alignment plate 120, and by having the heat insulation component 130 supported by the brackets 400 welded to the second side 114 of the cold plate body 110, the brackets 400 can prevent the entire heat insulation component 130 from being blown open after the thermal runaway valve of the battery cell 210.

[0058] The working principle and process of the battery pack 010 provided in this embodiment of the utility model are as follows: When assembling the battery pack 010, the pressure relief part 121 of the alignment plate 120 can be pre-aligned with the explosion-proof valve 211 of the cell 210. After confirming that there is no obstruction to the explosion-proof valve 211, the alignment plate 120 is positioned by marking alignment lines or using clips to align the module edges. Finally, the assembled cell 210, heat insulation component 130, alignment plate 120, cold plate body 110, and bracket 400 are installed into the housing 300.

[0059] Furthermore, when thermal runaway occurs in the battery cell 210, the explosion-proof valve 211 opens, and the high-pressure gas generated by the thermal runaway of the battery cell 210 can be vented through the pressure relief part 121, the heat insulation part 130 and the vent hole 410 on the bracket 400, thereby suppressing or slowing down the generation of external open flame.

[0060] In summary, the battery pack 010 provided in this embodiment of the present invention, by setting a separate and detachably connected cold plate body 110 and alignment plate 120, separates the alignment plate 120 with pressure relief part 121 from the cold plate body 110. This allows the pressure relief part 121 of the alignment plate 120 to be pre-aligned with the explosion-proof valve 211 of the battery cell 210 during battery pack assembly. After confirming that there is no obstruction to the explosion-proof valve 211, the assembled battery cell 210 and cold plate 100 are then placed into the box. This configuration of the cold plate 100 ensures the cooling effect of the cold plate 100 on the battery cell 210. On the other hand, it also ensures that the explosion-proof valve 211 is unobstructed and can open smoothly in the event of thermal runaway of the battery cell 210, thereby reducing the risk of thermal diffusion.

[0061] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A battery pack, characterized in that, The battery pack (010) includes: The battery cell (210) includes an explosion-proof valve (211). A cold plate (100) includes a separate cold plate body (110) and an alignment plate (120). The cold plate body (110) is thermally connected to the battery cell (210). The cold plate body (110) has a slot (111). The alignment plate (120) covers the slot (111) and is connected to the cold plate body (110). The alignment plate (120) is provided with a pressure relief part (121), the battery cell (210) is connected to the alignment plate (120), and the explosion-proof valve (211) is arranged opposite to the pressure relief part (121) and located on the side close to the pressure relief part (121).

2. The battery pack according to claim 1, characterized in that, The alignment plate (120) is bonded to the cold plate body (110).

3. The battery pack according to claim 1, characterized in that, The battery pack (010) has a third direction (Z), and the cold plate body (110) has a first side (113) and a second side (114) disposed opposite to each other along the third direction (Z). The cold plate body (110) further includes a first limiting part (112), which is located in the slot (111) and connected to the cold plate body (110). The first limiting part (112) is located on the second side (114) of the cold plate body (110). The alignment plate (120) is located on the first side (113) of the cold plate body (110) and is limitedly connected to the first limiting part (112) of the cold plate body (110).

4. The battery pack according to claim 3, characterized in that, The alignment plate (120) has a third side (123) and a fourth side (124) arranged opposite to each other along the third direction (Z), wherein the first side (113) and the third side (123) are located on the same side, and the second side (114) and the fourth side (124) are located on the same side; The alignment plate (120) has a first groove (122) which is provided along the outer edge of the alignment plate (120). The first groove (122) is located on the fourth side (124) of the alignment plate (120). The first limiting part (112) is limited and connected to the first groove (122) along the third direction (Z).

5. The battery pack according to claim 1, characterized in that, The battery pack (010) has a third orientation (Z), and the cold plate (100) further includes a heat insulation component (130), which is disposed corresponding to the alignment plate (120) and connected to the alignment plate (120); The alignment plate (120) has a third side (123) and a fourth side (124) disposed opposite to each other along the third direction (Z); the heat insulation member (130) is disposed on the third side (123) of the alignment plate (120); or, the heat insulation member (130) is disposed on the fourth side (124) of the alignment plate (120).

6. The battery pack according to claim 5, characterized in that, The heat insulation component (130) is provided with an easy-tear line (131) corresponding to the edge of the pressure relief part (121).

7. The battery pack according to claim 1, characterized in that, The battery pack (010) has a first direction (X) and a second direction (Y) that are perpendicular to each other. The cold plate body (110) is provided with a plurality of slots (111) at intervals along the first direction (X). The plurality of battery cells (210) respectively form a plurality of battery cell groups (200), and the plurality of battery cell groups (200) are arranged at intervals along the first direction (X). Multiple alignment plates (120) respectively cover multiple slots (111) and are connected to the cold plate body (110). Multiple pressure relief parts (121) are arranged at intervals along the second direction (Y) of the alignment plates (120). Multiple battery cells (210) are arranged along the second direction (Y). The explosion-proof valve (211) of one battery cell (210) is arranged opposite to one pressure relief part (121). The pressure relief section (121) at least partially covers the explosion-proof valve (211).

8. The battery pack according to claim 1, characterized in that, The battery pack (010) has a third orientation (Z), and the battery also includes a housing (300) having a receiving cavity, wherein the cold plate (100) and the battery cell (210) are disposed in the receiving cavity; The cold plate body (110) has a first side (113) and a second side (114) arranged opposite to each other along the third direction (Z), and the alignment plate (120) and the battery cell (210) are located on the first side (113) of the cold plate body (110). The cold plate (100) also includes at least two supports (400) connected to the cold plate body (110), the at least two supports (400) being spaced apart and located on the second side (114) of the cold plate body (110), and the at least two supports (400) being supported between the cold plate body (110) and the inner bottom wall of the box (300).

9. The battery pack according to claim 8, characterized in that, The bracket (400) is provided with an exhaust hole (410), which connects the exhaust channel and the receiving cavity.

10. The battery pack according to claim 8, characterized in that, The cold plate (100) further includes a heat insulation member (130), the alignment plate (120) has a third side (123) and a fourth side (124) disposed opposite to each other along the third direction (Z), the heat insulation member (130) is connected to the alignment plate (120) and located in the slot (111), and the heat insulation member (130) is disposed on the fourth side (124) of the alignment plate (120). The at least two supports (400) are arranged opposite the slot (111), and the heat insulation element (130) is sandwiched between the alignment plate (120) and the at least two supports (400).

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