A supporting module and an energy storage module

Abstract

This invention discloses a support module and an energy storage module. The support module includes a liquid-cooled plate, a base, a connector, and a support beam. The liquid-cooled plate has downward-opening positioning grooves, and each positioning groove has a first connecting hole on its bottom wall and second connecting holes on both sides. The base has positioning protrusions corresponding to each positioning groove to support the liquid-cooled plate. The connector is fixed to the base and adapted to support the liquid-cooled plate. It includes a connecting seat and two connecting strips, each with a connecting portion. The connecting seat and connecting portion are respectively adapted to be locked with the first and second connecting holes. The support beam is adapted to be locked with the corresponding first and second connecting holes to support the ends of the energy storage cells. The energy storage module uses the above-described support module. This application is simple to install and the liquid-cooled plate is not easily deformed.

Description

Technical Field

[0001] This invention relates to the field of energy storage, specifically to a support module and an energy storage module. Background Technology

[0002] Energy storage systems typically consist of multiple energy storage modules, each comprising multiple energy storage cells and a housing for these cells. The bottom of the housing usually has a base and a liquid cooling plate, with the energy storage cells in contact with the liquid cooling plate for heat dissipation. To ensure the liquid cooling plate can effectively remove heat from the energy storage cells, it must be tightly fitted to them. When the liquid cooling plate is large, it is prone to bending and deformation due to manufacturing and installation processes, leading to uneven heat dissipation. Existing bases often have a cross-shaped frame structure on their bottom wall to support the liquid cooling plate. However, this structure requires separate welding of the cross-shaped frame to the base, resulting in high costs and a complex process. Furthermore, during welding, the cross-shaped frame must avoid the flow channels of the liquid cooling plate. Therefore, the installation position of the cross-shaped frame needs to be very precise to avoid interference with the flow channels, significantly increasing the welding difficulty. Misalignment can lead to product scrap, further increasing production costs. Furthermore, in the existing technology, the liquid cooling plate is only fixed to the edge and the base. After the edge of the liquid cooling plate is subjected to stress, the middle part of the liquid cooling plate is still prone to bending and deformation. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned defects or problems in the prior art and to provide a support module that is easy to install and whose liquid cooling plate is not easily deformed.

[0004] To achieve the above objectives, the present invention and its preferred embodiments employ the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Technical Solution 1 and its related embodiments provide a support module for supporting at least two battery packs and dissipating heat for them. Each battery pack includes a plurality of energy storage cells arranged along a first direction and extending along a second direction perpendicular to the first direction. The battery packs are spaced apart along the second direction. The support module includes a liquid cooling plate with flow channels, the central part of which avoids the flow channels to form at least two downward-opening positioning grooves arranged along the first direction and extending along the second direction. The liquid cooling plate has a plurality of first connecting holes spaced apart along the second direction on the bottom wall of each positioning groove, and at least some of the first connecting holes correspond to the gaps of adjacent battery packs. It also has a plurality of second connecting holes spaced apart along the second direction on both sides along the first direction, and at least some of the second connecting holes correspond to the gaps of adjacent battery packs. A base is integrally formed, corresponding to each... A positioning groove is provided with a plurality of positioning protrusions arranged along a second direction to support the liquid cooling plate; and a connector, which is fixed to the base and adapted to support the liquid cooling plate, including a connector seat corresponding to each of the first connecting holes and two connecting strips; the two connecting strips are respectively arranged on both sides of the base along the first direction and extend along the second direction, each connecting strip having a number of connecting parts that correspond to the number of second connecting holes on the corresponding side of the liquid cooling plate; the top surface of the connector seat is flush with the top surface of the positioning protrusion; the connector seat and the connecting parts are respectively adapted to be locked with the first connecting holes and the second connecting holes; and a support beam, which extends along the first direction and is supported on the liquid cooling plate corresponding to the gap between adjacent cell packs, and is adapted to be locked with the corresponding first connecting hole, connector seat and corresponding second connecting hole and connecting part to support the end of the energy storage cell.

[0006] Based on technical solution one, there is also technical solution two. In technical solution two, the base is provided with a plurality of ribs extending along the first direction along the second direction, and the positioning protrusion is protruding from the ribs; the connecting seat is fixedly connected to the base in the gap between the ribs; and two connecting strips are fixedly connected to the base on both sides of each rib along the first direction.

[0007] Based on technical solution two, there is also technical solution three. In technical solution three, the positioning protrusions are arranged in a rectangular array; the second connecting holes on both sides of the liquid cooling plate are symmetrically arranged, and each second connecting hole is aligned with at least part of the first connecting hole along the first direction; the connecting strip and the base are welded at intervals along the second direction.

[0008] Based on technical solution three, there is also technical solution four. Technical solution four further includes two first insulating heat-conducting sheets and a number of second insulating heat-conducting sheets that are equal to and correspond one-to-one with the positioning grooves. The first insulating heat-conducting sheets avoid the position of the support beam corresponding to the connecting strip and are attached to the upper surface of the liquid cooling plate to cover each second connecting hole. Each second insulating heat-conducting sheet avoids the position of the support beam corresponding to each positioning groove and is attached to the upper surface of the liquid cooling plate to cover each first connecting hole.

[0009] Based on technical solution four, technical solution five is also provided. Technical solution five further includes thermal insulation cotton, two support members, a liquid inlet connector, and a liquid outlet connector. The thermal insulation cotton is sandwiched between the ribs of the liquid cooling plate and the base, avoiding the positioning protrusions. The support members extend along the first direction, and the two support members are respectively fixed to the base at both ends along the second direction to support the ends of the battery pack. The liquid inlet connector extends along the second direction and is welded to the liquid cooling plate, communicating with the liquid inlet port and adapted to extend out of the base. The liquid outlet connector extends along the second direction and is welded to the liquid cooling plate, communicating with the liquid outlet port and adapted to extend out of the base.

[0010] Based on any one of technical solutions two to five, a sixth technical solution is also provided. In the sixth technical solution, the liquid cooling plate is provided with an inlet port and an outlet port along one side of the second direction along the first direction. The flow channel is formed between the inlet port and the outlet port. The flow channel includes an inlet flow channel connecting the inlet port, an outlet flow channel connecting the outlet port, and at least two distribution flow channels corresponding to the energy storage cell. Each distribution flow channel connects the inlet flow channel and the outlet flow channel. Each distribution flow channel is arranged along the first direction and each distribution flow channel is at least partially S-shaped. The positioning groove is at least partially formed in the gap of the distribution flow channel.

[0011] Based on technical solution six, technical solution seven is also provided. In technical solution seven, the liquid inlet channel is provided with a liquid distribution section extending along a first direction; each liquid distribution channel intersects with the liquid distribution section at a liquid distribution inlet; the liquid outlet channel is provided with a liquid collection section extending along the first direction; each liquid distribution channel intersects with the liquid collection section at a liquid distribution outlet; at least a portion of each rib corresponds to the liquid distribution section and the liquid collection section, and this portion of the rib is suitable for bonding with the liquid cooling plate.

[0012] Based on technical solution seven, there is also technical solution eight. In technical solution eight, at least two liquid distribution channels are provided with liquid passages facing the liquid distribution section. The gap between the liquid passage and the liquid distribution section of the liquid distribution channel near the liquid inlet port is greater than the gap between the liquid passage and the liquid distribution section of the liquid distribution channel away from the liquid inlet port.

[0013] Based on technical solution eight, technical solution nine is also provided. In technical solution nine, the liquid outlet channel further includes a liquid outlet section extending along a second direction; the liquid outlet section connects to the liquid outlet port and is located on one side of each liquid distribution channel along the first direction; the liquid distribution channel includes a plurality of first liquid distribution channels and a second liquid distribution channel; the second liquid distribution channel is located between the liquid outlet section and the first liquid distribution channel; the second liquid distribution channel includes a first section and a second section arranged along the second direction, the first section having at least two first liquid distribution sub-channels arranged along the first direction and extending along the second direction, each first liquid distribution sub-channel intersecting the liquid distribution section at the liquid distribution inlet. The second section is connected to the first liquid distribution channel, which is at least partially S-shaped and intersects the liquid collection section at the liquid distribution outlet. The first liquid distribution channel is provided with the liquid passage section. The positioning groove is formed in the gap of the first liquid distribution channel and in the gap between the second liquid distribution channel and the liquid outlet section, and corresponds to the edge of the energy storage cell. At least two first diversion strips extending in the first direction are arranged at intervals in the liquid collection section, and a second diversion strip and a third diversion strip are arranged at intervals in the first direction in the liquid outlet section. The second diversion strip extends in the second direction, and the third diversion strip includes a plurality of third sub-diversion strips arranged at intervals in the second direction.

[0014] Technical solution ten and its related embodiments provide an energy storage module, which adopts the support module described in any one of technical solutions one to nine.

[0015] As can be seen from the above description of the present invention and its preferred embodiments, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0016] In technical solution one, the liquid cooling plate is locked to the base with connectors. The base is integrally formed and has multiple positioning protrusions, which is low in cost. The positioning protrusions greatly increase the strength of the base and provide multi-point support for the liquid cooling plate. In addition, the connectors can also support the liquid cooling plate. Therefore, the two sides of the liquid cooling plate can be supported and fixed by the connecting strips, while the middle of the liquid cooling plate is supported by the positioning protrusions and the connecting seat. This makes the liquid cooling plate, the base, and the connectors form a multi-point support and multi-point fixing structure, which is not only low in cost but also structurally stable. This allows the liquid cooling plate to bear force at multiple points, avoiding bending deformation caused by only bearing force at the edges. In this design, the positioning protrusions are pre-formed and correspond to the positioning grooves. Therefore, the installation position of the connecting seat can be determined by the position of the positioning protrusions. The connecting strips are located on both sides of the liquid cooling plate, and their position is determined by combining the length of the liquid cooling plate along the first direction with the position of the positioning protrusions. Thus, the installation positions of the connecting strips and connecting seats can be quickly and easily determined, reducing installation difficulty, thereby improving production efficiency and yield, and reducing costs. Furthermore, when the liquid cooling plate is locked to the base via the connecting parts, it also ensures grounding, guaranteeing the insulation and withstand voltage of the liquid cooling plate. Based on this, since the supporting module supports at least two battery packs and dissipates heat for them, the liquid cooling plate is relatively long along the second direction. The middle section of the liquid cooling plate along the second direction will still bend and deform due to its length. In this technical solution, at least some of the first connecting holes correspond to the gaps between adjacent battery packs, and at least some of the second connecting holes correspond to the gaps between adjacent battery packs. This ensures that the middle section of the liquid cooling plate is not only supported but also locked by the connectors, preventing bending deformation. A support beam is provided corresponding to the middle section of the liquid cooling plate, which not only avoids interference with the liquid cooling plate but also allows the middle section of the liquid cooling plate in the second direction to be clamped between the connecting seat, connecting strip, and support beam, making the middle section of the liquid cooling plate less prone to bending. Thus, the multi-point support and fixing structure of the liquid cooling plate, combined with the clamping structure in the middle of the second direction, ensures the overall flatness of the liquid cooling plate. Furthermore, since the positions of the connecting seat and the support beam are easy to determine, the installation difficulty is reduced.

[0017] In technical solution two, ribs are provided on the base, increasing its strength and allowing the flow channels of the liquid cooling plate to be supported by the ribs, reducing the contact area between the flow channels of the liquid cooling plate and the base. The positioning protrusions are protruding from the ribs, simplifying the process and further enhancing the reinforcing effect of the ribs. The connecting seat is fixed to the base in the gap between the ribs, and two connecting strips are fixed to the base on both sides of each rib along the first direction, making it easier to determine the installation position of the connecting seat and connecting strips, further facilitating installation. In addition, when the energy storage cells extend along the second direction and multiple energy storage cells are arranged along the first direction, each rib can support multiple energy storage cells, resulting in better load-bearing capacity.

[0018] In technical solution three, the positioning protrusions are arranged in a rectangular array, which further enables the liquid cooling plate to be supported at multiple points, making the structure more stable and less prone to deformation and bending. The second connecting holes on both sides of the liquid cooling plate are symmetrically arranged, so that the two connecting strips can have the same configuration, that is, they can use basically the same process, which is more cost-effective. Each second connecting hole is at least partially aligned with the first connecting hole along the first direction, which facilitates the opening of the hole and further makes the connection points between the liquid cooling plate and the base evenly distributed and forms a local reinforcement structure, thereby further preventing the liquid cooling plate from bending and deforming. The connecting strips and the base are welded at intervals along the second direction, which is not only less costly than full welding, but also prevents deformation caused by errors in the components during full welding.

[0019] In technical solution four, the placement of the first and second insulating thermal conductive sheets can, on the one hand, prevent burrs from scratching the energy storage cell during the opening process of the liquid cooling plate, and on the other hand, elevate the energy storage cell and provide insulation and thermal conductivity, thereby improving the heat exchange efficiency between the liquid cooling plate and the energy storage cell. Furthermore, it increases the distance between the energy storage cell and the upper surface of the liquid cooling plate, allowing for the application of more thermally conductive adhesive in the gaps between the first and second insulating thermal conductive sheets and between the second insulating thermal conductive sheets compared to not having them. This improves both thermal conductivity and insulation efficiency, and allows the energy storage cell to be pressed more firmly onto the thermally conductive adhesive, resulting in more uniform adhesive application and better pressure resistance, thus improving the heat dissipation of the energy storage cell.

[0020] In technical solution five, in practical application, after the base is stamped, it is fixed to the connector and the two support beams. After the fixing is completed, the base, connector, and two support beams are electroplated and painted together, and then insulation cotton is installed. After the liquid inlet and outlet connectors are welded to the liquid cooling plate, the liquid inlet and outlet connectors extend out of the base. The first and second connecting holes, which do not correspond to the gaps between the liquid cooling plate and the adjacent battery pack, are locked to the connecting seat and the connecting part, respectively. The insulation cotton is then sandwiched between the ribs of the liquid cooling plate and the base. The support beams are then locked to the corresponding first connecting holes, connecting seats, second connecting holes, and connecting parts. Finally, the two first insulating heat-conducting sheets are attached to the liquid cooling plate along the first... The first insulating heat-conducting sheet is attached to the middle of the liquid cooling plate and covers the second connection hole on both sides of the direction. Thus, the entire support module is assembled into a module. When used in energy storage modules, the battery cell pack only needs to be supported on the support beam and the support beam, or on two support beams, facilitating modular application. Insulation cotton is sandwiched between the ribs of the liquid cooling plate and the base, forming an air insulation layer between the insulation cotton and the bottom surface of the base. When the battery cell is placed on the liquid cooling plate, it effectively avoids or reduces the formation of condensation in the base when the battery cell temperature is low, thereby improving the safety of the energy storage module. In addition to its heat insulation function, the insulation cotton also acts as a buffer during the installation of the liquid cooling plate. The design of the inlet and outlet connectors avoids leakage problems caused by too many interfaces when multiple adapter pipes are connected.

[0021] In technical solution six, the inlet and outlet ports of the liquid cooling plate are located on the same side, which facilitates the installation of inlet and outlet connectors on the same side and makes subsequent installation easier. Since the distribution channels correspond to the energy storage cells, it can accommodate multiple energy storage cell schemes. With the liquid cooling plate area remaining constant, the number of distribution channels can be adjusted by changing the channel diameter and channel spacing, resulting in greater adaptability. Each distribution channel is arranged along the first direction, and each distribution channel is at least partially S-shaped. Positioning grooves are formed in the gaps between the distribution channels, allowing the positioning grooves to be integrally formed through the processing of the distribution channels, simplifying the process. Furthermore, the S-shaped design of the first distribution channel allows the coolant to flow from one side of the liquid cooling plate to the other and then back to the same side, thereby reducing the temperature difference between the two sides of the liquid cooling plate along the second direction, which is beneficial for reducing the temperature difference between the energy storage cells along the second direction.

[0022] In technical solution seven, at least some of the ribs correspond to the liquid distribution section and the liquid collection section, and these ribs are suitable for bonding with the liquid cooling plate. On the one hand, this fixes the two ends of the liquid cooling plate relative to the base along the second direction, thereby fixing the edge of the liquid cooling plate relative to the base by screw and adhesive connection, making it less prone to bending and deformation. On the other hand, since the positioning protrusion corresponds to the positioning groove, and the positioning groove avoids the flow channel, that is, avoids the liquid distribution section and the liquid collection section, the ribs corresponding to the liquid distribution section and the liquid collection section do not have positioning protrusions. In actual operation, these ribs are easy to apply structural adhesive to bond with the liquid cooling plate, and the operation is simple.

[0023] In technical solution eight, the gap between the liquid passage section and the liquid distribution section of the liquid distribution channel near the liquid inlet port is larger than the gap between the liquid passage section and the liquid distribution section of the liquid distribution channel far from the liquid inlet port. On the one hand, this helps to make the path length of each branch channel in which the liquid distribution channel is located tend to be consistent between the liquid inlet port and the liquid outlet port, thereby improving temperature uniformity. On the other hand, since the temperature of the coolant at the liquid inlet port is lower, this setting helps to maintain the temperature balance of each liquid distribution channel, thereby making the temperature of each energy storage cell more uniform and improving the temperature uniformity of each energy storage cell.

[0024] In technical solution nine, as can be seen from the structural arrangement of the liquid distribution channel, the liquid distribution inlet of the second liquid distribution channel is farthest from the liquid inlet port. Therefore, the temperature of the coolant in the second liquid distribution channel is higher than that of the other first liquid distribution channels. The second liquid distribution channel includes a first section and a second section arranged along the second direction. The first section has at least two first liquid distribution sub-channels arranged along the first direction and extending along the second direction. The flow velocity of the first liquid distribution sub-channels is fast, which makes the second liquid distribution channel form a first section with a relatively fast flow velocity. Therefore, the temperature of the first section is low. The coolant from multiple first liquid distribution sub-channels flows into the second section, so the temperature of the second section is also relatively low. Therefore, the arrangement of the second liquid distribution channel makes its temperature close to that of the other first liquid distribution channels even though it is far from the liquid inlet port. This makes the temperature difference of the corresponding energy storage cells more balanced, thereby improving the temperature uniformity of each energy storage cell. In this system, the second sections of the first and second liquid distribution channels converge at the collection section, from which the liquid flows into the outlet section. This results in a high liquid flow rate and rapid heat exchange. The first liquid distribution channel is equipped with a liquid passage section, and positioning grooves are formed in the gaps between the first and second liquid distribution channels and the outlet section. This facilitates processing, ensures uniform distribution of the positioning grooves, and widens the gaps between the first and second liquid distribution channels and the outlet section, preventing heat accumulation. Each positioning groove corresponds to the edge of the energy storage cell, minimizing its impact on heat dissipation. The placement of the first, second, and third distribution bars increases the flow velocity, thereby increasing heat exchange efficiency. The placement of the second and third distribution bars in the outlet section facilitates the rapid discharge of hot coolant, improving temperature uniformity.

[0025] Technical solution ten has the technical advantages of any one of technical solutions one through nine. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments are briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the support module according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of an energy storage module according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the lower surface of the liquid cooling plate according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the flow channel of the liquid cooling plate according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the base and connector according to an embodiment of the present invention;

[0032] Figure 6 This is a top view of an embodiment of the present invention;

[0033] Figure 7 for Figure 6 Sectional view along the AA direction;

[0034] Figure 8 This is a top view of an embodiment of the present invention, concealing the liquid cooling plate, support beam, first insulating heat-conducting sheet, and second insulating heat-conducting sheet.

[0035] Explanation of key figure labels:

[0036] Liquid cooling plate 10; positioning groove 11; first connecting hole 111; second connecting hole 12; first diverter bar 13; second diverter bar 14; third diverter bar 15; liquid inlet port 01; liquid outlet port 02; liquid inlet channel 03; liquid distribution section 031; liquid outlet channel 04; liquid outlet section 041; liquid collection section 042; liquid distribution channel 05; first liquid distribution channel 051; second liquid distribution channel 052; liquid passage section 053; first section 054; first diverter Liquid flow channel 0541; second section 055; liquid inlet 06; liquid outlet 07; base 20; positioning protrusion 21; rib 22; connector 30; connector seat 31; connector strip 32; connector part 321; first insulating heat-conducting sheet 40; second insulating heat-conducting sheet 50; support beam 60; support member 61; energy storage cell 70; insulation cotton 80; strip opening 81; liquid inlet connector 91; liquid outlet connector 92; energy storage module 100. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are preferred embodiments of the present invention and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and accompanying drawings of this invention is for distinguishing different objects and not for describing a specific order.

[0039] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this invention, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to 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 limiting the specific scope of protection of this invention.

[0040] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this invention should be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection by other means or components.

[0041] In the claims, description and accompanying drawings of this invention, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0042] See Figure 1-2 , Figure 1-2 A support module is shown for an energy storage module 100, which includes at least two cell packs. The support module supports and dissipates heat from the at least two cell packs. Each cell pack includes N energy storage cells 70 arranged along a first direction and extending along a second direction perpendicular to the first direction. The cell packs are spaced apart along the second direction. The length direction of the energy storage cells 70 is the second direction, and the width direction of the energy storage cells 70 is the first direction. Figure 1-2 In the diagram, the first direction is left-right, and the second direction is front-back. N is a positive integer greater than 1. Figure 2 In the middle, the energy storage module 100 includes two cell packs arranged along the second direction, and each cell pack includes four energy storage cells 70.

[0043] The supporting module includes a liquid cooling plate 10, a base 20, a connector 30, a first insulating heat-conducting sheet 40, a second insulating heat-conducting sheet 50, a support beam 60, a support member 61, insulation cotton 80, a liquid inlet connector 91, and a liquid outlet connector 92.

[0044] See Figure 3-4The liquid cooling plate 10 is provided with flow channels, and at least two downward-opening positioning grooves 11 are formed in the middle of the flow channels, which are arranged along a first direction and extend along a second direction. The bottom wall of each positioning groove 11 of the liquid cooling plate 10 is provided with a plurality of first connecting holes 111 spaced apart along the second direction, and at least some of the first connecting holes 111 correspond to the gaps of adjacent battery cells. On both sides of the liquid cooling plate 10, a plurality of second connecting holes 12 are also spaced apart along the second direction, and at least some of the second connecting holes 12 correspond to the gaps of adjacent battery cells. The second connecting holes 12 on both sides of the liquid cooling plate 10 are symmetrically arranged, and each second connecting hole 12 is aligned with at least some of the first connecting holes 111 along the first direction. Figure 3 In the liquid cooling plate 10, five first connection holes 111 are formed in the middle. These five first connection holes 111 are located in the middle of the liquid cooling plate 10 along the first direction and the middle of the liquid cooling plate 10 along the second direction, respectively. One of the first connection holes 111 is located at the centroid of the liquid cooling plate 10, and three of the first connection holes 111 and two of the second connection holes 12 correspond to the gap between the two battery packs.

[0045] See Figure 4 The liquid cooling plate 10 has an inlet port 01 and an outlet port 02 arranged along the first direction on one side of the second direction. A flow channel is formed between the inlet port 01 and the outlet port 02. The flow channel includes an inlet flow channel 03 connecting the inlet port 01, an outlet flow channel 04 connecting the outlet port 02, and at least two distribution flow channels 05 corresponding to the energy storage cells 70. Each distribution flow channel 05 connects the inlet flow channel 03 and the outlet flow channel 04. Each distribution flow channel 05 is arranged along the first direction and each distribution flow channel 05 is at least partially S-shaped. A positioning groove 11 is formed in the gap of the distribution flow channels 05. In this embodiment, a total of 5 distribution flow channels 05 are formed. The liquid inlet port 01 and liquid outlet port 02 of the liquid cooling plate 10 are located on the same side, which facilitates the installation of the inlet and outlet connectors on the same side and makes subsequent installation easier. Since the liquid distribution channels 05 are set to correspond to the energy storage cells 70, they can accommodate multiple energy storage cells 70. When the area of ​​the liquid cooling plate 10 remains unchanged, the number of liquid distribution channels 05 can be adjusted by changing the channel diameter and channel spacing, making it more adaptable. At least two of the liquid distribution channels 05 are arranged along the first direction, and each liquid distribution channel 05 is at least partially S-shaped. The positioning groove 11 is at least partially formed in the gap of the liquid distribution channel 05, so that the positioning groove 11 can be integrally formed by processing the liquid distribution channel 05, making the process simpler. The liquid inlet connector 91 extends along the second direction and is welded to the upper surface of the liquid cooling plate 10. It communicates with the liquid inlet port 01 and is adapted to extend out of the base support 20. The liquid outlet connector 92 extends in the second direction and is welded to the upper surface of the liquid cooling plate 10. It communicates with the liquid outlet port 02 and is adapted to extend out of the base support 20.

[0046] The inlet channel 03 is provided with a liquid distribution section 031 extending along a first direction; the outlet channel 04 includes an outlet section 041 extending along a second direction and a collection section 042 extending along the first direction; the outlet section 041 is connected to the outlet port 02 and is located on one side of each liquid distribution channel 05 along the first direction. Figure 4 (Located on the left side). The liquid distribution section 031 and the liquid collection section 042 are located on both sides of the liquid cooling plate 10 along the second direction. Each liquid distribution channel 05 intersects with the liquid distribution section 031 at the liquid distribution inlet 06 and with the liquid collection section 042 at the liquid distribution outlet 07.

[0047] Since both the collecting section 042 and the discharging section 041 are far from the inlet port 01, the temperature of the coolant in these sections is relatively high. This results in a higher temperature for parts of the energy storage cell 70 corresponding to the collecting section 042 and the discharging section 041, which is detrimental to the temperature uniformity of the energy storage cell 70. Therefore, at least two first diversion strips 13 extending along the first direction are spaced apart within the collecting section 042, and a second diversion strip 14 and a third diversion strip 15 are spaced apart within the discharging section 041 along the first direction. The second diversion strip 14 extends along the second direction, and the third diversion strip 15 includes several third sub-diversion strips spaced apart along the second direction. The arrangement of the first diversion strip 13, the second diversion strip 14, and the third diversion strip 15 increases the flow velocity, thereby increasing the heat exchange efficiency. The arrangement of the second diversion strip 14 and the third diversion strip 15 within the discharging section 041 facilitates the rapid discharge of hot coolant, improving temperature uniformity.

[0048] Furthermore, since the temperature of the inlet port 01 is lower than that of the outlet port 02, the temperature of each liquid distribution channel 05 in the liquid cooling plate 10 is not uniform. When the energy storage cell 70 is placed on the liquid cooling plate 10, the temperature uniformity is poor. In this embodiment, to improve this problem, the structure of each liquid distribution channel 05 has been improved. See also for details. Figure 4 At least a portion of the liquid distribution channel 05 has a liquid passage section 053 facing the liquid distribution section 031. The gap between the liquid passage section 053 and the liquid distribution section 031 of the liquid distribution channel 05 near the liquid inlet port 01 is larger than the gap between the liquid passage section 053 and the liquid distribution section 031 of the liquid distribution channel 05 far from the liquid inlet port 01. This arrangement helps to make the path length of each branch channel of the liquid distribution channel 05 between the liquid inlet port 01 and the liquid outlet port 02 more consistent, thereby improving temperature uniformity. On the other hand, since the temperature of the coolant at the liquid inlet port 01 is lower, this arrangement helps to maintain the temperature balance of each liquid distribution channel 05, thereby making the temperature of each energy storage cell 70 more balanced, which is beneficial to improving the temperature uniformity of each energy storage cell 70.

[0049] Specifically, the liquid distribution channel 05 includes several first liquid distribution channels 051 and a second liquid distribution channel 052; the second liquid distribution channel 052 is located between the liquid outlet section 041 and the first liquid distribution channel 051; the second liquid distribution channel 052 includes a first section 054 and a second section 055 arranged along a second direction, the first section 054 having at least two first liquid distribution sub-channels 0541 arranged along the first direction and extending along the second direction. Figure 4 The system comprises four first liquid distribution sub-channels 0541. Each first liquid distribution sub-channel 0541 intersects with the liquid distribution section 031 at the liquid distribution inlet 06 and connects to the second section 055. The second section 055 is at least partially S-shaped and intersects with the liquid collection section 042 at the liquid distribution outlet 07. Each first liquid distribution channel 051 has a liquid passage section 053. Positioning grooves 11 are formed in the gaps between the first liquid distribution channels 051 and between the second liquid distribution channel 052 and the liquid outlet section 041. In this embodiment, each positioning groove 11 corresponds to the edge of the energy storage cell 70.

[0050] As can be seen from the structural arrangement of the liquid distribution channel 05, the liquid distribution inlet 06 of the second liquid distribution channel 052 is farthest from the liquid inlet port 01. Therefore, the temperature of the coolant in the second liquid distribution channel 052 is higher than that of the other first liquid distribution channels 051. The second liquid distribution channel 052 includes a first section 054 and a second section 055 arranged along the second direction. The first section 054 is provided with at least two first liquid distribution sub-channels 0541 arranged along the first direction and extending along the second direction, so that the second liquid distribution channel 052 forms a first section 054 with a faster flow rate. Therefore, the temperature of the first section 054 is low. The coolant from multiple first liquid distribution sub-channels 0541 flows into the second section 055, so the temperature of the second section 055 is also relatively low. Therefore, the arrangement of the second liquid distribution channel 052 makes its temperature close to that of the other first liquid distribution channels 051, even though it is far from the liquid inlet port 01. This makes the temperature difference of the corresponding energy storage cells 70 more balanced, thereby improving the temperature uniformity of each energy storage cell 70. In this system, the second sections 055 of the first liquid distribution channels 051 and the second liquid distribution channels 052 converge at the collection section 042, and then flow into the outlet section 041. This results in a high liquid flow rate and rapid heat exchange. The first liquid distribution channel 051 is equipped with a liquid passage section 053, and positioning grooves 11 are formed in the gaps between the first liquid distribution channel 051 and the second liquid distribution channel 052 and the outlet section 041. This facilitates processing, ensures uniform distribution of the positioning grooves 11, and widens the gaps between the first liquid distribution channel 051 and the second liquid distribution channel 052 and the outlet section 041, preventing heat accumulation. Each positioning groove 11 corresponds to the edge of the energy storage cell 70, minimizing its impact on heat dissipation.

[0051] Each first distribution channel 051 is at least partially S-shaped, and the second section 055 of the second distribution channel is at least partially S-shaped, making the overall flow resistance of the second distribution channel 052 smaller than that of the first distribution channel 051. The second distribution channel 052 corresponds to at least two energy storage cells 70. Therefore, the flow velocity of the second distribution channel 052 is faster, which is more conducive to removing heat from the energy storage cells 70 far from the inlet port 01, thereby further improving the temperature uniformity of the energy storage cells 70. At least two of the first distribution channels 051 near the second distribution channel 052 are S-shaped. Since each energy storage cell 70 corresponds to the same energy storage cell 70, the number of first liquid distribution channels 051 corresponding to the energy storage cell 70 located in the middle is larger and the flow rate is faster, which is more conducive to reducing the temperature difference with the energy storage cell 70 near the liquid inlet port 01. In addition, the S-shaped design of the first liquid distribution channel 051 and the S-shaped design of the second section 055 of the second liquid distribution channel 052 make the coolant flow from one side of the liquid cooling plate 10 to the other side and then back to the same side, thereby reducing the temperature difference between the two sides of the liquid cooling plate 10 along the second direction, which is conducive to reducing the temperature difference between the energy storage cell 70 along the second side.

[0052] The base 20 is integrally molded, see below. Figure 5 In this embodiment, the structure is mainly formed integrally by stamping and has an open box shape with flanges. The base 20 is provided with a plurality of positioning protrusions 21 arranged along the second direction for each positioning groove 11 to support the liquid cooling plate 10. In specific implementation, the base 20 is provided with a plurality of ribs 22 extending along the first direction along the second direction. In addition to the ribs 22 at the front and rear ends of the base 20, each rib 22 in the middle is provided with at least two protrusions arranged along the first direction. Figure 5Three protrusions are provided in the middle, forming positioning protrusions 21, which are protruding from the ribs 22. However, it should be understood that in other embodiments, the positioning protrusions 21 can also be directly formed on the base 20. In this embodiment, at least a portion of each rib 22 corresponds to the liquid distribution section 031 and the liquid collection section 042, and this portion of the rib 22 is suitable for bonding with the liquid cooling plate 10. In this embodiment, the front and rear ribs 22 correspond to the liquid distribution section 031 and the liquid collection section 042 respectively and are bonded to the lower surface of the liquid cooling plate 10 with structural adhesive. Since the positioning protrusions 21 correspond to the positioning grooves 11, and the positioning grooves 11 avoid the flow channels, that is, avoid the liquid distribution section 031 and the liquid collection section 042, the positioning protrusions 21 are not protruding on the ribs 22 corresponding to the liquid distribution section 031 and the liquid collection section 042. In actual operation, this portion of the rib 22 is easy to apply structural adhesive and bond to the liquid cooling plate 10, which is simple to operate. When the energy storage cells 70 extend along the second direction and multiple energy storage cells 70 are arranged along the first direction, each rib 22 can support multiple energy storage cells 70, resulting in better load-bearing capacity. The ribs 22 on the base support 20 increase the strength of the base support 20 and allow the flow channels of the liquid cooling plate 10 to be supported by the ribs 22, reducing the contact area between the flow channels of the liquid cooling plate 10 and the base support 20. The protrusions on the ribs 22 form positioning protrusions 21, which simplifies the manufacturing process and further enhances the reinforcing effect of the ribs 22. In addition, the positioning protrusions 21 are arranged along the first direction, so that each positioning protrusion 21 is arranged in a rectangular array and avoids the first connecting hole 111.

[0053] See Figure 5 The connector 30 is fixed to the base 20 and adapted to support the liquid cooling plate 10. It includes a connector 31 corresponding to each of the first connector holes 111 and two connector strips 32. In this embodiment, the top surface of the connector 31 and the top surface of the connector strip 32 are flush with the top surface of the positioning protrusion 21. The two connector strips 32 are respectively arranged on both sides of the base 20 along the first direction and extend along the second direction. Each connector strip 32 has a number of connector portions 321 that correspond to the number of second connector holes 12 on the side corresponding to the liquid cooling plate 10. The connector 31 and the connector portions 321 are respectively adapted to be locked with the first connector holes 111 and the second connector holes 12. In this embodiment, the connector 31 is fixed to the base 20 in the gap of the ribs 22, and the two connector strips 32 are fixed to the base 20 on both sides of each rib 22 along the first direction. In this embodiment, the connecting strip 32 and the base 20 are welded at intervals along the second direction. Intermittent welding is not only cheaper than full welding, but also prevents deformation caused by errors in the components during full welding. The connecting seat 31 is welded to the base 20.

[0054] See Figure 1-2 The support beam 60 extends along the first direction and is supported on the liquid cooling plate 10 corresponding to the gap between adjacent battery cells. See [reference needed]. Figure 7The support beam 60 is adapted to be locked with the corresponding first connecting hole 111, connecting seat 31, and corresponding second connecting hole 12 and connecting part 321 to support the end of the energy storage cell 70. The cross-section of the support beam 60 is an open box shape with an inner flange. In addition to the support beam 60, there are two support members 61. The two support members 61 extend along the first direction and are fixed to the bottom support 20 at both ends along the second direction to support the end of the cell pack. The support member 61 located at the front end avoids the liquid inlet port 01 and liquid outlet port 02 of the liquid cooling plate 10 to form a three-section structure. In this embodiment, the two support members 61 are welded and screwed to the bottom support 20, so that each cell pack is supported on one support member 61 and one support beam 60 at both ends along the second direction.

[0055] See Figure 1 and Figure 6 The first insulating heat-conducting sheet 40 avoids the support beam 60 and is attached to the upper surface of the liquid cooling plate 10 corresponding to the connecting strip 32 to cover each of the second connecting holes 12. The second insulating heat-conducting sheet 50 avoids the support beam 60 and is attached to the upper surface of the liquid cooling plate 10 corresponding to each positioning groove 11 to cover each of the first connecting holes 111. In this embodiment, the first insulating heat-conducting sheet 40 and the second insulating heat-conducting sheet 50 are preferably PC boards or epoxy boards. The arrangement of the first insulating heat-conducting sheet 40 and the second insulating heat-conducting sheet 50 can, on the one hand, prevent burrs from scratching the energy storage cell 70 during the opening process of the liquid cooling plate 10, and on the other hand, raise the energy storage cell 70. It also has insulating and thermally conductive properties, thereby improving the heat exchange efficiency between the liquid cooling plate 10 and the energy storage cell 70, and increasing the distance between the upper surfaces of the energy storage cell 70 and the liquid cooling plate 10. This allows for the application of more thermally conductive adhesive in the gaps between the first and second insulating thermally conductive sheets 40 and 50, as well as in the gaps between the second insulating thermally conductive sheets 50, compared to when the first and second insulating thermally conductive sheets 40 and 50 are not provided. This improves both thermal conductivity and insulation efficiency, and also allows the energy storage cell 70 to be pressed more firmly onto the thermally conductive adhesive, resulting in a more uniform adhesive with better pressure resistance, which in turn helps improve the heat dissipation of the energy storage cell 70.

[0056] See Figure 7-8 The insulation cotton 80 is sandwiched between the ribs 22 of the liquid cooling plate 10 and the base support 20, avoiding the positioning protrusions 21. Furthermore, when the insulation cotton 80 is supported by the ribs 22, it should also avoid the connecting seats 31 and the two connecting strips 32. Figure 8 In the middle, the insulation cotton 80 forms a strip-shaped opening 81 extending in the second direction for each positioning protrusion 21 arranged along the second direction to avoid the corresponding positioning protrusion 21 and the connecting seat 31. The width of the insulation cotton 80 along the first direction is less than the distance between the two connecting strips 32 to avoid the two connecting strips 32. When the liquid cooling plate 10 is supported on the insulation cotton 80, it avoids the insulation cotton 80 being fixed to the base 20.

[0057] In practical applications, after the base support 20 is stamped, it is fixed to the connector 30 and the two support beams. After the fixing is completed, the base support 20, connector 30, and two support beams are electroplated and painted together. Then, the insulation cotton 80 is installed, and structural adhesive is applied to the front and rear ribs 22. After the liquid inlet connector 91 and liquid outlet connector 92 are welded to the liquid cooling plate 10, the liquid inlet connector 91 and liquid outlet connector 92 extend out of the base support 20 respectively. The first connecting hole 111 and the second connecting hole 12, which do not correspond to the gap between the liquid cooling plate 10 and the adjacent battery pack, are locked to the connecting seat 31 and the connecting part 321 respectively. The lower surface of the liquid cooling plate 10 is connected to the front and rear ribs. 22. The insulation cotton 80 is sandwiched between the ribs of the liquid cooling plate 10 and the base 20. Then, the support beam 60 is locked with the corresponding first connecting hole 111, connecting seat 31, second connecting hole 12 and connecting part 321. Then, the two first insulating heat-conducting sheets 40 are attached to both sides of the liquid cooling plate 10 along the first direction and cover the second connecting hole 12. The first insulating heat-conducting sheet 40 is attached to the middle of the liquid cooling plate 10 and covers the first connecting hole 111. Thus, the entire support module is assembled into a module. When applied to the energy storage module 100, the battery pack only needs to be supported on the support beam and the support beam 60 or on the two support beams 60, which facilitates modular application.

[0058] In this embodiment, the thermal insulation cotton 80 is sandwiched between the ribs of the liquid cooling plate 10 and the base 20, forming an air insulation layer between the thermal insulation cotton 80 and the bottom surface of the base 20. When the battery cell is placed on the liquid cooling plate 10, it can effectively prevent or reduce the formation of condensate in the base 20 when the battery cell temperature is low, thereby improving the safety of the energy storage module 100. In addition to its heat insulation function, the thermal insulation cotton 80 also acts as a buffer during the installation of the liquid cooling plate 10. The liquid inlet connector 91 and liquid outlet connector 92 avoid leakage problems caused by too many interfaces when multiple adapter pipes are connected.

[0059] In this embodiment, the liquid cooling plate 10 is locked to the base support 20 by the connector 30 and bonded to the front and rear sides of the base support 20 by structural adhesive. The base support 20 is integrally formed by stamping and has multiple ribs 22 and multiple positioning protrusions 21 arranged in a rectangular array. This makes the base support 20 strong and inexpensive, and also provides multi-point support for the liquid cooling plate 10, making the structure more stable and less prone to deformation and bending. In addition, the top surface of the connector 30 is flush with the positioning protrusions 21, so that the connector 30 can also... The liquid cooling plate 10 is supported by the connecting strip 32. The left and right sides of the liquid cooling plate 10 can be supported and fixed by the connecting strip 32, and the front and rear sides of the liquid cooling plate 10 are bonded together. Thus, the edge of the liquid cooling plate 10 is fixed relative to the base 20 by the screw and adhesive connection, which makes it less prone to bending and deformation. The middle part of the liquid cooling plate 10 is supported by the positioning protrusion 21 and supported and fixed by the connecting seat 31. This makes the liquid cooling plate 10, the base 20 and the connecting part 30 form a multi-point support and multi-point fixing structure, which is not only low in cost but also has a stable structure. Since the positioning protrusion 21 is pre-formed and corresponds to the positioning groove 11, the installation position of the connecting seat 31 can be determined by the position of the positioning protrusion 21. The connecting strip 32 is located on both sides of the liquid cooling plate 10 and on both sides of each rib 22 along the first direction. Therefore, the position of the connecting strip 32 is determined by determining the length of the liquid cooling plate 10 along the first direction and the two sides of each rib 22 along the first direction. Thus, in this embodiment, the installation positions of the connecting strip 32 and the connecting seat 31 can be quickly and easily determined, reducing the installation difficulty, thereby improving production efficiency and yield, and reducing costs. When the liquid cooling plate 10 is locked to the base 20 by the connecting piece 30, it can also ensure that the liquid cooling plate 10 is grounded, ensuring the insulation and withstand voltage of the liquid cooling plate 10.

[0060] When the liquid cooling plate 10 is locked to the base 20 by the connector 30, it can also ensure that the liquid cooling plate 10 is grounded, thus ensuring the insulation and withstand voltage of the liquid cooling plate 10. Based on this, since the supporting module supports at least two battery packs and dissipates heat for them, the liquid cooling plate 10 is relatively long along the second direction. The middle part of the liquid cooling plate 10 along the second direction will still bend and deform due to its long length. In this technical solution, at least some of the first connecting holes 111 correspond to the gaps of each adjacent battery pack, and at least some of the second connecting holes 12 correspond to the gaps of each adjacent battery pack. This ensures that the middle part of the liquid cooling plate 10 is not only supported but also locked by the connector 30, preventing bending and deformation in the middle. A support beam is set corresponding to the middle part of the liquid cooling plate 10, which not only avoids interference with the liquid cooling plate 10 but also allows the middle part of the liquid cooling plate 10 in the second direction to be clamped between the connecting seat 31, the connecting strip 32, and the support beam 60, making it less prone to bending in the middle part of the liquid cooling plate 10. Thus, the multi-point support and fixing structure of the liquid cooling plate 10, together with the clamping structure in the middle of the second direction, ensures that the liquid cooling plate 10 is flat overall. In addition, since the position of the connecting seat 31 and the position of the support beam 60 are easy to determine, the installation difficulty is reduced.

[0061] In this embodiment, the second connecting holes 12 on both sides of the liquid cooling plate 10 are symmetrically arranged, so that the two connecting strips 32 can have the same configuration, that is, they can use basically the same process, which is more cost-effective; each second connecting hole 12 is at least partially aligned with the first connecting hole 111 along the first direction, which facilitates the opening of holes and further makes the connection points between the liquid cooling plate 10 and the base 20 evenly distributed and form a reinforced structure, thereby further preventing the liquid cooling plate 10 from bending and deforming.

[0062] This embodiment also provides an energy storage module 100, which adopts the support module of Embodiment 1 and has the same advantages as Embodiment 1.

[0063] It should be understood that in practical applications, the energy storage module 100 will also include an outer casing, energy storage cells, copper busbars, terminals, fuse switches, sensors, and other electrical components. The supporting module and the outer casing are fixedly connected to form a housing that can accommodate the energy storage cells. The energy storage cells can be connected in series through copper busbars and then electrically connected to external devices through terminals. This part belongs to the prior art and will not be described in detail here.

[0064] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this invention, but does not constitute a limitation on the scope of protection of this invention. Modifications, equivalent substitutions, or other improvements to the embodiments of this invention or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this invention or the foregoing embodiments, in conjunction with common knowledge, general technical knowledge, and / or existing technology, should all be included within the scope of protection of this invention.

Claims

1. A support module for supporting and dissipating heat from at least two battery cell packs, each battery cell pack comprising a plurality of energy storage cells (70) arranged along a first direction and extending along a second direction perpendicular to the first direction, the battery cell packs being spaced apart along the second direction, characterized in that, include The liquid cooling plate (10) is provided with a flow channel, and at least two downward-opening positioning grooves (11) are formed in the middle of the flow channel to avoid the flow channel; the liquid cooling plate (10) has a plurality of first connecting holes (111) spaced apart along the second direction on the bottom wall of each positioning groove (11), and at least some of the first connecting holes (111) correspond to the gaps of each adjacent battery pack; and a plurality of second connecting holes (12) are also spaced apart along the second direction on both sides of the liquid cooling plate (10), and at least some of the second connecting holes (12) correspond to the gaps of each adjacent battery pack. The base (20) is integrally formed, and each positioning groove (11) is provided with a number of positioning protrusions (21) arranged along the second direction to support the liquid cooling plate (10). Each positioning protrusion (21) avoids the first connecting hole (111). A connector (30), fixed to the base (20) and adapted to support the liquid cooling plate (10), includes a connector (31) corresponding to each of the first connecting holes (111) and two connecting strips (32); the two connecting strips (32) are respectively arranged on both sides of the base (20) along a first direction and extend along a second direction, each connecting strip (32) having a connecting portion (321) equal in number and corresponding to the second connecting holes (12) on the side corresponding to the liquid cooling plate (10); the top surface of the connector (31) is flush with the top surface of the positioning protrusion (21); the connector (31) and the connecting portion (321) are respectively adapted to be locked with the first connecting hole (111) and the second connecting hole (12); and A support beam (60) extending in a first direction is supported on a liquid cooling plate (10) corresponding to the gap between adjacent cell packs. It is adapted to be locked with a corresponding first connection hole (111), a connection seat (31), and a corresponding second connection hole (12) and a connection portion (321) to support the end of the energy storage cell (70).

2. The support module as described in claim 1, characterized in that, The base (20) is provided with a plurality of ribs (22) extending along the first direction along the second direction, and the positioning protrusion (21) protrudes from the ribs (22); the connecting seat (31) is fixedly connected to the base (20) in the gap between the ribs (22); and the two connecting strips (32) are fixedly connected to the base (20) on both sides of each rib (22) along the first direction.

3. The support module as described in claim 2, characterized in that, Each positioning protrusion (21) is arranged in a rectangular array; the second connecting holes (12) on both sides of the liquid cooling plate (10) are symmetrically arranged, and each second connecting hole (12) is aligned with at least part of the first connecting holes (111) along the first direction; the connecting strip (32) and the base (20) are welded at intervals along the second direction.

4. A support module as described in claim 3, characterized in that, It also includes two first insulating heat-conducting sheets (40) and two second insulating heat-conducting sheets (50) that are equal in number and correspond one-to-one with the positioning grooves (11). The first insulating heat-conducting sheets (40) avoid the position of the support beam (60) corresponding to the connecting strip (32) and are attached to the upper surface of the liquid cooling plate (10) to cover each second connecting hole (12). Each second insulating heat-conducting sheet (50) avoids the position of the support beam (60) corresponding to each positioning groove (11) and is attached to the upper surface of the liquid cooling plate (10) to cover each first connecting hole (111).

5. A support module as described in claim 4, characterized in that, It also includes thermal insulation cotton (80), two support members (61), liquid inlet connector (91) and liquid outlet connector (92); the thermal insulation cotton (80) avoids the positioning protrusions (21) and is sandwiched between the ribs (22) of the liquid cooling plate (10) and the base (20); the support member (61) extends along the first direction, and the two support members (61) are respectively fixed to the base (20) at both ends along the second direction to support the end of the battery pack; the liquid inlet connector (91) extends along the second direction and is welded to the liquid cooling plate (10), which communicates with the liquid inlet port (01) and is adapted to extend out of the base (20); the liquid outlet connector (92) extends along the second direction and is welded to the liquid cooling plate (10), which communicates with the liquid outlet port (02) and is adapted to extend out of the base (20).

6. A support module as described in any one of claims 2-5, characterized in that, The liquid cooling plate (10) is provided with an inlet port (01) and an outlet port (02) along the first direction on one side of the second direction. The flow channel is formed between the inlet port (01) and the outlet port (02). The flow channel includes an inlet flow channel (03) connecting the inlet port (01), an outlet flow channel (04) connecting the outlet port (02), and at least two distribution flow channels (05) corresponding to the energy storage cell (70). Each distribution flow channel (05) connects the inlet flow channel (03) and the outlet flow channel (04). Each distribution flow channel (05) is arranged along the first direction and each distribution flow channel (05) is at least partially S-shaped. The positioning groove (11) is at least partially formed in the gap of the distribution flow channel (05).

7. A support module as described in claim 6, characterized in that, The liquid inlet channel (03) is provided with a liquid distribution section (031) extending along the first direction; each liquid distribution channel (05) intersects with the liquid distribution section (031) at the liquid distribution inlet (06); the liquid outlet channel (04) is provided with a liquid collection section (042) extending along the first direction; each liquid distribution channel (05) intersects with the liquid collection section (042) at the liquid distribution outlet (07); the liquid distribution section (031) and the liquid collection section (042) are respectively located on both sides of the liquid cooling plate (10) along the second direction; At least a portion of each rib (22) corresponds to the liquid distribution section (031) and the liquid collection section (042), and this portion of the rib (22) is adapted to be bonded to the liquid cooling plate (10).

8. A support module as described in claim 7, characterized in that, At least two liquid distribution channels (05) are provided with liquid passage sections (053) facing the liquid distribution section (031). The gap between the liquid passage section (053) of the liquid distribution channel (05) near the liquid inlet port (01) and the liquid distribution section (031) is greater than the gap between the liquid passage section (053) of the liquid distribution channel (05) away from the liquid inlet port (01) and the liquid distribution section (031).

9. A support module as described in claim 8, characterized in that, The liquid outlet channel (04) is further provided with a liquid outlet section (041) extending along the second direction; the liquid outlet section (041) is connected to the liquid outlet port (02) and is located on one side of each liquid distribution channel (05) along the first direction, the liquid distribution channel (05) includes a plurality of first liquid distribution channels (051) and a second liquid distribution channel (052); the second liquid distribution channel (052) is located between the liquid outlet section (041) and the first liquid distribution channel (051); The second liquid distribution channel (052) includes a first section (054) and a second section (055) arranged along the second direction. The first section (054) is provided with at least two first liquid distribution sub-channels (0541) arranged along the first direction and extending along the second direction. Each first liquid distribution sub-channel (0541) intersects with the liquid distribution section (031) at the liquid distribution inlet (06) and connects to the second section (055). The second section (055) is at least partially S-shaped and intersects with the liquid collection section (042) at the liquid distribution outlet (07). The first liquid distribution channel (051) is provided with the liquid passage section (053); the positioning groove (11) is formed in the gap of the first liquid distribution channel (051) and in the gap between the second liquid distribution channel (052) and the liquid outlet section (041), and corresponds to the edge of the energy storage cell (70); The liquid collection section (042) is provided with at least two first diversion strips (13) extending along the first direction at intervals. The liquid outlet section (041) is provided with a second diversion strip (14) and a third diversion strip (15) at intervals along the first direction. The second diversion strip (14) extends along the second direction. The third diversion strip (15) includes a plurality of third sub-diversion strips arranged at intervals along the second direction.

10. An energy storage module (100), characterized in that, It adopts the support module according to any one of claims 1-9.

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