A new energy vehicle battery radiator

Abstract

The present invention relates to the field of battery heat dissipation technology, and in particular to a new energy vehicle battery radiator, including a heat dissipation mechanism, the heat dissipation mechanism including a first plate, a second plate, an evaporation plate and a connection assembly, a plurality of second plates are provided, the plurality of second plates are fixedly mounted on the first plate, the plurality of second plates are arranged along a first direction on the first plate, the first direction extends along a horizontal direction, a spacing is provided between two adjacent second plates, a plurality of single cells are provided in a housing, and the plurality of single cells are arranged along the first direction, and each single cell is in contact with the first plate and the second plate adjacent thereto. Through the coordinated arrangement of the plurality of second plates and the plurality of single cells, the single cells are divided into a plurality of separate parts, an evaporation plate is provided in each second plate, and each single cell can be cooled down separately, thereby improving the heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of battery heat dissipation, and in particular to a battery radiator for a new energy vehicle. Background Art

[0002] As the main energy storage element of the battery pack loaded on electric vehicles, the battery pack is a key component of electric vehicles. During the operation of the battery pack on the vehicle, the heat generation rate of each battery cell in the battery pack may be inconsistent, which will cause inconsistent temperatures of the battery cells in the battery pack. Since the performance and life of the lithium-ion battery pack used in the vehicle are sensitive to temperature changes, the long-term temperature unevenness in the battery pack will accelerate the inconsistency of the battery cells, thereby reducing the life of the battery pack. In severe cases, it will also cause thermal runaway, affecting the safety and reliability of the battery. Summary of the invention

[0003] Based on this, it is necessary to provide a new energy vehicle battery radiator to address the problem of poor internal heat dissipation of new energy vehicle batteries.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A new energy vehicle battery radiator is used to dissipate heat for multiple single cells, including a shell and a heat dissipation mechanism, the heat dissipation mechanism is arranged in the shell, the heat dissipation mechanism includes a first plate, a second plate, an evaporation plate and a connection assembly, a plurality of second plates are provided, and the plurality of second plates are fixedly mounted on the first plate, the plurality of second plates are arranged on the first plate along a first direction, the first direction extends along a horizontal direction, and a spacing is provided between two adjacent second plates, a plurality of single cells are arranged in the shell, and the plurality of single cells are arranged along the first direction, and each single cell is in contact with the first plate and the second plate adjacent thereto; a first cavity and a plurality of second cavities are sequentially opened in the first plate along the vertical direction, and the first cavity A cooling liquid flows through the first cavity, and the volume of the first cavity is variable. A plurality of second cavities are located below the first cavity, and the plurality of second cavities are arranged along the first direction. A third cavity with a variable volume is provided in each second plate, and each second cavity is connected to a third cavity. A plurality of evaporation plates are provided, and cooling liquid is provided on the plurality of evaporation plates. Each evaporation plate includes a bottom plate and a side plate, the bottom plate is arranged in the second cavity, the side plate is fixedly connected to a side surface of the bottom plate, and the side plate is arranged in the third cavity. A connecting component is arranged in the first plate and the second plate, and is used to control the volume of the first cavity according to the pressure change in the third cavity, and to make the volume of the first cavity positively correlated with the volume of the third cavity.

[0006] Preferably, the first cavity includes a storage cavity, a first flow channel and a second flow channel. A plurality of storage cavities are provided, and the plurality of storage cavities are arranged along a first direction. The first flow channel and the second flow channel are respectively located on both sides of the storage cavity. The extension direction of the connection line between the first flow channel and the second flow channel is perpendicular to the arrangement direction of the storage cavity and is on the same plane. The first flow channel and the second flow channel are respectively connected to each storage cavity. A water inlet and a water outlet are provided on the first plate. The water inlet is connected to the first flow channel, and the water outlet is connected to the second flow channel.

[0007] Preferably, a first partition is provided between two adjacent cavities, each first partition is located above the middle position of a single cell, a second partition is provided between two adjacent second cavities, each second partition is located directly below a first partition, and each cavity is located directly above a second cavity, and each second cavity is located above two single cells.

[0008] Preferably, a fourth cavity is provided in the first plate, and the fourth cavity is located between the first cavity and the second cavity. A plurality of connecting assemblies are provided, and each connecting assembly includes a rubber plate, a baffle plate and a plurality of connecting rods. The rubber plate is located between two adjacent first partitions, and the rubber plate is fixedly connected to the partition plate and the first plate, respectively, and the rubber plate is located between the receiving cavity and the fourth cavity, and is used to separate the receiving cavity and the fourth cavity. A fifth cavity with a variable volume is provided in the second plate, and the baffle plate is slidably provided between the third cavity and the fifth cavity. A plurality of connecting rods are fixedly mounted on the baffle plate, and the plurality of connecting rods are arranged along a second direction, and the second direction is respectively perpendicular to the first direction and the vertical direction. An end of the plurality of connecting rods away from the baffle plate passes through the first plate and is fixedly connected to the rubber plate, and each connecting rod is slidably connected to the first plate.

[0009] Preferably, the impact force of the coolant in the first cavity on the rubber sheet is smaller than the force required for the rubber sheet to deform.

[0010] Preferably, a sponge block is provided in each second cavity, the sponge block is fixedly mounted on the first plate, and the sponge block is located between the bottom plate and the single battery cell, the sponge block is in contact with the bottom plate, coolant is stored in the sponge block, the bottom plate is slidably arranged in the second cavity along the vertical direction, the side plate is slidably arranged in the third cavity along the vertical direction, and the baffle is fixedly connected to the side plate.

[0011] Preferably, the interior of the second cavity and the third cavity is a negative pressure environment.

[0012] Preferably, a plurality of support columns are disposed in each second cavity to maintain the shape and size of the second cavity.

[0013] Preferably, the support column is shaped like a truncated cone, with the large end of the truncated cone located above the small end thereof.

[0014] Preferably, the shell includes an upper guard plate, an intermediate body and a lower guard plate, the intermediate body is provided with a through slot, the heat dissipation mechanism and multiple single cells are arranged in the through slot, the upper guard plate is arranged above the intermediate body, and the lower guard plate is arranged below the intermediate body, and the upper guard plate and the lower guard plate are used to protect the heat dissipation mechanism and multiple single cells in the through slot.

[0015] The beneficial effects of the present invention are as follows: through the coordinated arrangement of multiple second plates and multiple single cells, the single cells are divided into multiple separate parts, an evaporation plate is arranged in each second plate, and each single cell can be cooled separately, thereby improving the heat dissipation effect; a coolant is arranged on the evaporation plate, and when the temperature of the single cell rises, the coolant on the evaporation plate evaporates, and the pressure in the second cavity and the third cavity increases, thereby increasing the volume of the third cavity, and a connecting component is arranged, and when the volume of the third cavity increases, the volume of the first cavity increases accordingly, and the circulation of the coolant in the first cavity increases, which can better absorb the heat in the second cavity and improve the heat dissipation effect of the single cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a new energy vehicle battery radiator provided by an embodiment of the present invention;

[0017] Figure 2 A split diagram of a new energy vehicle battery radiator provided by an embodiment of the present invention;

[0018] Figure 3 A left view of a new energy vehicle battery radiator provided by an embodiment of the present invention;

[0019] Figure 4 for Figure 3 A partial schematic diagram of a cross-sectional view taken along the AA direction;

[0020] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0021] Figure 6 for Figure 3 A partial schematic diagram of the cross-sectional view along the BB direction.

[0022] Among them: 100, single battery; 101, first plate; 102, second plate; 103, second cavity; 104, third cavity; 105, bottom plate; 106, side plate; 107, cavity; 108, first flow channel; 109, second flow channel; 110, water inlet; 111, water outlet; 112, first partition; 113, second partition; 114, fourth cavity; 115, rubber plate; 116, baffle; 117, connecting rod; 118, fifth cavity; 119, sponge block; 120, support column; 121, upper guard plate; 122, intermediate body; 123, lower guard plate; 124, through groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which 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 therefore cannot be understood as a limitation to the present invention.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] like Figures 1 to 6As shown, a new energy vehicle battery radiator provided by an embodiment of the present invention is used to dissipate heat for multiple single cells 100, including a shell and a heat dissipation mechanism, the heat dissipation mechanism is arranged in the shell, the heat dissipation mechanism includes a first plate 101, a second plate 102, an evaporation plate and a connection assembly, a plurality of second plates 102 are provided, and the plurality of second plates 102 are fixedly mounted on the first plate 101, the plurality of second plates 102 are arranged along a first direction on the first plate 101, the first direction extends along a horizontal direction, and a spacing is provided between two adjacent second plates 102, a plurality of single cells 100 are arranged in the shell, and the plurality of single cells 100 are arranged along the first direction, and each single cell 100 is in contact with the first plate 101 and the second plate 102 adjacent thereto; a first cavity and a plurality of second cavities 103 are sequentially opened in the first plate 101 along the vertical direction, and the first cavity 103 is provided in the first plate 101. A cooling liquid flows through a cavity, and the volume of the first cavity is variable. A plurality of second cavities 103 are located below the first cavity, and the plurality of second cavities 103 are arranged along a first direction, and a third cavity 104 with a variable volume is opened in each second plate 102, and each second cavity 103 is connected to a third cavity 104; a plurality of evaporation plates are provided, and cooling liquid is provided on the plurality of evaporation plates, and each evaporation plate includes a bottom plate 105 and a side plate 106, the bottom plate 105 is arranged in the second cavity 103, the side plate 106 is fixedly connected to a side surface of the bottom plate 105, and the side plate 106 is arranged in the third cavity 104; a connecting component is arranged in the first plate 101 and the second plate 102, and is used to control the volume of the first cavity according to the pressure change in the third cavity 104, and make the volume of the first cavity positively correlated with the volume of the third cavity 104.

[0027] In this embodiment, the first cavity includes a cavity 107, a first flow channel 108 and a second flow channel 109. The cavity 107 is provided with a plurality of cavities, and the plurality of cavities 107 are arranged along a first direction. The first flow channel 108 and the second flow channel 109 are respectively located on both sides of the cavity 107. The extension direction of the connecting line of the first flow channel 108 and the second flow channel 109 is perpendicular to the arrangement direction of the cavity 107 on the same plane. The first flow channel 108 and the second flow channel 109 are respectively connected to each cavity 107. A water inlet 110 and a water outlet 111 are provided on the first plate 101. The water inlet 110 is connected to the first flow channel 108, and the water outlet 111 and the second flow channel 109 are connected to each cavity 107. The flow channel 109 is connected. A water pump, a coolant tank and a cooling system are provided on the outside of the new energy vehicle battery radiator. The coolant tank is connected to the water pump and the cooling system respectively. The water pump can transport the coolant in the coolant tank to the cavity 107 through the water inlet 110. The water inlet 110 is connected to the cooling system. The cooling system can cool down the high-temperature coolant. Multiple cavities 107 are connected in parallel. The coolant with a lower temperature in the first flow channel 108 can enter multiple cavities 107 at the same time, avoiding the coolant from heating up in one cavity 107 and then flowing to the next cavity 107, resulting in reduced heat dissipation effect of the next single battery 100.

[0028] In this embodiment, a first partition 112 is provided between two adjacent cavities 107, and each first partition 112 is located above the middle position of a single battery 100. A second partition 113 is provided between two adjacent second cavities 103, and each second partition 113 is located directly below a first partition 112, and each cavity 107 is located directly above a second cavity 103. Each second cavity 103 is located above two single batteries 100. If one of the single batteries 100 generates more heat, the coolant on the evaporation plates in the two adjacent second plates 102 will evaporate, the pressure in the two second cavities 103 corresponding to the single battery 100 will increase, the volume of the two cavities 107 corresponding to the two second cavities 103 will increase, the flow rate of the coolant in the two cavities 107 will increase, and more heat can be absorbed.

[0029] In this embodiment, a fourth cavity 114 is provided in the first plate 101, and the fourth cavity 114 is located between the first cavity 104 and the second cavity 103. A plurality of connecting components are provided, and each connecting component includes a rubber plate 115, a baffle plate 116, and a plurality of connecting rods 117. The rubber plate 115 is located between two adjacent first partitions 112, and the rubber plate 115 is fixedly connected to the first partition plate 112 and the first plate 101, respectively. The rubber plate 115 is located between the receiving cavity 107 and the fourth cavity 114, and is used to separate the receiving cavity 107 from the fourth cavity 114. A fifth cavity 118 with a variable volume is provided in the second plate 102, and the baffle plate 116 is slidably provided between the third cavity 104 and the fifth cavity 118. A plurality of connecting rods 117 are fixedly mounted on the baffle plate 116, and the plurality of connecting rods 117 are arranged along the second direction. , and the second direction is perpendicular to the first direction and the vertical direction respectively. One end of the plurality of connecting rods 117 away from the baffle 116 passes through the first plate 101 and is fixedly connected to the rubber plate 115, and each connecting rod 117 is slidably connected to the first plate 101. When the single battery 100 generates a large amount of heat, the coolant on the evaporation plate evaporates more. In addition, due to the expansion of the gas in the second cavity 103 and the third cavity 104, the baffle 116 can move in the third cavity 104 away from the second cavity 103 and compress the fifth cavity 118. The baffle 116 pulls the rubber plate 115 to move in the direction of the second cavity 103 through the connecting rod 117. The volume of the cavity 107 corresponding to the rubber plate 115 increases, and the flow rate of the coolant passing through the cavity 107 increases, so that the single battery 100 at this position can dissipate heat better.

[0030] In this embodiment, the impact force of the coolant in the first cavity on the rubber sheet 115 is smaller than the force required for the rubber sheet 115 to deform, and the change in the amount of coolant in the first cavity will not affect the shape of the rubber sheet 115. Only when the pressure in the second cavity 103 and the third cavity 104 is greater than the pressure in the fifth cavity 118, the baffle 116 moves to drive the rubber sheet 115 to move toward the fourth cavity 114 through the connecting rod 117, so that the volume of the cavity 107 corresponding to the rubber sheet 115 increases, the flow rate of the internal coolant increases, and more heat is taken away.

[0031] In this embodiment, a sponge block 119 is provided in each second cavity 103. The sponge block 119 is fixedly mounted on the first plate 101 and is located between the bottom plate 105 and the single battery 100. The sponge block 119 contacts the bottom plate 105. Coolant is stored in the sponge block 119. The bottom plate 105 is slidably disposed in the second cavity 103 along the vertical direction. The side plate 106 is slidably disposed in the third cavity 104 along the vertical direction. The baffle 116 is fixedly connected to the side plate 106. When the temperature of the single battery 100 is too high, the liquid on the evaporation plate evaporates faster, and the pressure in the third cavity 104 and the second cavity 103 located on the side of the baffle 116 close to the second cavity 103 increases. The baffle 116 can pull the evaporation plate to move in a direction away from the first cavity, and the sponge block 119 can be squeezed. The coolant in the sponge block 119 can be quickly replenished to the evaporation plate, and then the single battery 100 can be better cooled.

[0032] In this embodiment, the interior of the second cavity 103 and the third cavity 104 is a negative pressure environment, and the evaporation temperature of the coolant in the second cavity 103 and the third cavity 104 is reduced, which helps the evaporation of the coolant on the evaporation plate, thereby better dissipating heat for the single battery 100.

[0033] In this embodiment, a plurality of support columns 120 are provided in each second cavity 103 to maintain the shape and size of the second cavity 103. Both ends of the support columns 120 are in contact with the first plate 101, and the axis extension direction of the support columns 120 is consistent with the extension direction of the line between the first cavity and the second cavity 103. The plurality of support columns 120 are evenly distributed in the second cavity 103. The support columns 120 penetrate the evaporation plate and the sponge block 119, and the support columns 120 are slidably connected to the evaporation plate and the sponge block 119. After the single cell 100 generates heat, part of the heat can be directly transferred to the coolant in the first cavity through the support columns 120. At the same time, the heat in the second cavity 103 can also be absorbed by the support columns 120, thereby further improving the heat dissipation effect of the single cell 100.

[0034] In this embodiment, the support column 120 is shaped like a truncated cone, with the large end of the cone located above its small end, and the sponge block 119 and the evaporation plate close to the small end of the cone, which can maximize the area of ​​the sponge block 119 and the evaporation plate in the second cavity 103, further improving the heat dissipation effect of the single cell 100.

[0035] In this embodiment, the shell includes an upper guard plate 121, an intermediate body 122 and a lower guard plate 123. A through groove 124 is opened on the intermediate body 122. The heat dissipation mechanism and multiple single cells 100 are arranged in the through groove 124. The upper guard plate 121 is arranged above the intermediate body 122, and the lower guard plate 123 is arranged below the intermediate body 122. The upper guard plate 121 and the lower guard plate 123 are used to protect the heat dissipation mechanism and multiple single cells 100 in the through groove 124.

[0036] The working principle and working method of a new energy vehicle battery radiator provided in this embodiment are as follows:

[0037] First, start the water pump, which transports the coolant in the coolant tank to the first flow channel 108 through the water inlet 110, and then flows to each cavity 107 through the first flow channel 108. The coolant in each cavity 107 absorbs the heat emitted by the second cavity 103 and then gathers in the second flow channel 109. The coolant in the second flow channel 109 enters the cooling system through the water outlet 111, and then the cooled coolant flows back to the coolant tank.

[0038] When the temperature of one of the single cells 100 is higher than that of the other single cells 100, the cooling liquid on the evaporation plates on both sides and the upper side of the single cell 100 evaporates faster, absorbing the heat emitted by the single cell 100 faster, and the evaporated cooling liquid enters the second cavity 103 and the third cavity 104, and the gas content in the second cavity 103 and the third cavity 104 increases, and the pressure inside the second cavity 103 and the third cavity 104 increases, thereby pushing the baffle 116 to move toward the fifth cavity 118, and the moving baffle 116 drives the side plate 106 and the bottom plate 105 to move together, and then the bottom plate 106 moves to the fifth cavity 118. The sponge block 119 begins to be squeezed, and the coolant in the sponge block 119 flows onto the bottom plate 105 and the side plate 106, so that the side plate 106 can continue to absorb the heat emitted by the single battery 100. When the baffle 116 moves, the baffle 116 pulls the rubber plate 115 through the connecting rod 117 to deform, and the side of the rubber plate 115 located in the first cavity is concave, so the capacity of the first cavity is increased, and the flow rate of the coolant flowing through the first cavity is increased, so that the heat in the second cavity 103 can be better taken away, and the condensed coolant in the second cavity 103 flows back to the sponge block 119 and the evaporation plate.

[0039] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A new energy vehicle battery radiator, used to dissipate heat for multiple single batteries, characterized in that: include: A shell and a heat dissipation mechanism, the heat dissipation mechanism is arranged in the shell, the heat dissipation mechanism includes a first plate, a second plate, an evaporation plate and a connection assembly, a plurality of second plates are provided, the plurality of second plates are fixedly mounted on the first plate, the plurality of second plates are arranged along a first direction on the first plate, the first direction extends along a horizontal direction, and a spacing is provided between two adjacent second plates, a plurality of single cells are arranged in the shell, and the plurality of single cells are arranged along the first direction, and each single cell is in contact with the first plate and the second plate adjacent thereto; a first cavity and a plurality of second cavities are sequentially opened in the first plate along a vertical direction, a cooling liquid is passed through the first cavity, and the container of the first cavity The volume of the first cavity is variable, a plurality of second cavities are located below the first cavity, and the plurality of second cavities are arranged along the first direction, and a third cavity with a variable volume is opened in each second plate, and each second cavity is connected to a third cavity; a plurality of evaporation plates are provided, and a cooling liquid is provided on the plurality of evaporation plates, and each evaporation plate comprises a bottom plate and a side plate, the bottom plate is arranged in the second cavity, the side plate is fixedly connected to a side surface of the bottom plate, and the side plate is arranged in the third cavity; a connecting component is arranged in the first plate and the second plate, and is used to control the volume of the first cavity according to the pressure change in the third cavity, and make the volume of the first cavity positively correlated with the volume of the third cavity; The first cavity includes a cavity, a first flow channel and a second flow channel. A plurality of cavities are provided, and the plurality of cavities are arranged along a first direction. The first flow channel and the second flow channel are respectively located on both sides of the cavity. The extension direction of the connection line between the first flow channel and the second flow channel is perpendicular to the arrangement direction of the cavity on the same plane. The first flow channel and the second flow channel are respectively connected to each cavity. A water inlet and a water outlet are provided on the first plate. The water inlet is connected to the first flow channel, and the water outlet is connected to the second flow channel. A first partition is provided between two adjacent cavities, each of which is located above the middle position of a single battery, a second partition is provided between two adjacent second cavities, each of which is located directly below a first partition, and each cavity is located directly above a second cavity, and each second cavity is located above two single batteries; A fourth cavity is provided in the first plate, and the fourth cavity is located between the first cavity and the second cavity. A plurality of connecting assemblies are provided, and each connecting assembly includes a rubber plate, a baffle plate, and a plurality of connecting rods. The rubber plate is located between two adjacent first partitions, and the rubber plate is fixedly connected to the partition plate and the first plate, respectively, and the rubber plate is located between the receiving cavity and the fourth cavity, and is used to separate the receiving cavity and the fourth cavity. A fifth cavity with a variable volume is provided in the second plate, and the baffle plate is slidably arranged between the third cavity and the fifth cavity. A plurality of connecting rods are fixedly mounted on the baffle plate, and the plurality of connecting rods are arranged along a second direction, and the second direction is perpendicular to the first direction and the vertical direction, respectively. One end of the plurality of connecting rods away from the baffle plate passes through the first plate and is fixedly connected to the rubber plate, and each connecting rod is slidably connected to the first plate. The impact force of the coolant in the first cavity on the rubber plate is less than the force required for the rubber plate to deform. A sponge block is provided in each second cavity, the sponge block is fixedly mounted on the first plate, and the sponge block is located between the bottom plate and the single battery, the sponge block is in contact with the bottom plate, and a coolant is stored in the sponge block. The bottom plate is slidably arranged in the second cavity along the vertical direction, the side plate is slidably arranged in the third cavity along the vertical direction, and the baffle is fixedly connected to the side plate; the interior of the second cavity and the third cavity is a negative pressure environment; A plurality of support columns are provided in each second cavity to maintain the shape and size of the second cavity; the support columns are truncated cone-shaped, with the large end of the truncated cone located above the small end thereof; The shell includes an upper guard plate, an intermediate body and a lower guard plate. The intermediate body is provided with a through slot, and a heat dissipation mechanism and multiple single cells are arranged in the through slot. The upper guard plate is arranged above the intermediate body, and the lower guard plate is arranged below the intermediate body. The upper guard plate and the lower guard plate are used to protect the heat dissipation mechanism and multiple single cells in the through slot.

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