Bearing assembly and energy storage module

Abstract

The utility model discloses a bearing assembly and an energy storage module. The bearing assembly comprises a liquid cooling plate, a bottom support and a connecting piece. The liquid cooling plate is provided with a positioning groove with a downward opening; the bottom support is provided with positioning protrusions corresponding to the positioning grooves so as to support the liquid cooling plate. And the connecting piece avoids the positioning bulge to be fixedly connected with the bottom support, and is also suitable for being locked with the liquid cooling plate. The energy storage module adopts the bearing assembly. The installation is simple, and the liquid cooling plate is not easy to deform.

Description

Technical Field

[0001] The utility model relates to the field of energy storage, and in particular to a supporting component and an energy storage module. Background Art

[0002] The energy storage system is generally composed of multiple energy storage modules, and the energy storage module includes multiple battery cell groups and a shell for accommodating the battery cell groups. The bottom of the shell is generally provided with a base and a liquid cooling plate, and the battery cell group fits with the liquid cooling plate to dissipate heat by the liquid cooling plate. In order to ensure that the liquid cooling plate can take away the heat of the battery cell group in time, the liquid cooling plate needs to fit closely with the battery cell group. When the liquid cooling plate is large, the liquid cooling plate is easy to bend and deform due to process and installation reasons, resulting in uneven heat dissipation. The upper surface of the bottom wall of the existing base is often welded with a grid-shaped frame structure formed by a plurality of long ribs and wide ribs staggered. The long ribs of the grid-shaped frame structure support the gaps of the cooling channel of the liquid cooling plate, and the wide ribs are fixed to the long ribs by welding with the base. Since each long rib is a continuous structure, it needs to avoid the flow channel of the liquid cooling plate when supporting the liquid cooling plate. Therefore, each gap of the flow channel of the liquid cooling plate also needs to be a continuous structure, which limits the flow channel design of the liquid cooling plate. In addition, the welding process of the grid-shaped frame structure is complicated and costly. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background technology and to provide a supporting assembly which is easy to install and the liquid cooling plate is not easily deformed.

[0004] In order to achieve the above-mentioned purpose, the present invention and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Technical solution one and its related embodiments provide a supporting assembly for supporting energy storage cells and dissipating heat therefor, including a liquid cooling plate, which is provided with a flow channel, wherein the middle portion avoids the flow channel to form at least two positioning grooves opening downward; a bottom bracket, which is integrally formed by a stamping process, and has a positioning protrusion corresponding to each positioning groove to support the liquid cooling plate; and a connecting piece, which avoids the positioning protrusion and is fixedly connected to the bottom bracket, and is also suitable for being locked with the liquid cooling plate.

[0006] Based on the technical scheme, a technical scheme 2 is also provided, in which each positioning groove is arranged along a first direction and extends along a second direction perpendicular to the first direction; the base support is provided with a plurality of positioning protrusions arranged along the second direction corresponding to each positioning groove; the liquid cooling plate is provided with at least one first connecting hole for avoiding the positioning protrusion on the bottom wall of each positioning groove along the second direction, and at least two second connecting holes are also arranged along the second direction on both sides of the first direction; the connecting member is suitable for supporting the liquid cooling plate, and includes a connecting seat and two connecting strips corresponding to each first connecting hole one by one; the top surface of the connecting seat is flush with the top surface of the positioning protrusion; the two connecting strips are respectively arranged on both sides of the base support along the first direction and extend along the second direction, and each connecting strip is provided with a connecting portion equal to and corresponding to the number of the second connecting holes on the corresponding side of the liquid cooling plate; the connecting seat and the connecting portion are respectively suitable for locking with the first connecting hole and the second connecting hole.

[0007] Based on technical solution two, technical solution three is also provided. In technical solution three, a plurality of ribs extending along the first direction are arranged on the base along the second direction, and the positioning protrusion is protruded on the ribs; the connecting seat is fixedly connected to the base in the gap between the ribs; and two connecting strips are respectively fixedly connected to the base on both sides of each rib along the first direction.

[0008] Based on technical solution three, technical solution four is also provided. In technical solution four, 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 holes along the first direction; the connecting strip and the base are welded at intervals along the second direction.

[0009] Based on technical solutions two to four, a technical solution five is also provided. Technical solution five also includes two first insulating thermally conductive plates and second insulating thermally conductive plates whose number is equal to and corresponds to the positioning grooves. The first insulating thermally conductive plates correspond to the positions of the connecting strips and are attached to the upper surface of the liquid cooling plate and are suitable for covering each second connecting hole. The positions of each second insulating thermally conductive plate correspond to the positions of each positioning groove and are attached to the upper surface of the liquid cooling plate and are suitable for covering each first connecting hole.

[0010] Based on technical solution one, technical solution six is ​​also provided. In technical solution six, there are at least two energy storage cells, each of which is arranged along the first direction and extends along the second direction. The liquid cooling plate is provided with a liquid inlet port and a liquid outlet port along the first direction on one side along the second direction. The flow channel is formed between the liquid inlet port and the liquid outlet port. The flow channel includes a liquid inlet channel connected to the liquid inlet port, a liquid outlet channel connected to the liquid outlet port, and at least two liquid separation channels arranged corresponding to the energy storage cells. Each liquid separation channel connects the liquid inlet channel and the liquid outlet channel. Each liquid separation channel is arranged along the first direction and each liquid separation channel is at least partially S-shaped. The positioning groove is at least partially formed in the gap of the liquid separation 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 separation section extending along the first direction; each liquid separation channel intersects with the liquid separation section at a liquid separation inlet and intersects with the liquid outlet channel at a liquid separation outlet; at least part of the liquid separation channel is provided with a liquid passing section toward the liquid separation section, and the gap between the liquid passing section and the liquid separation section of the liquid separation channel close to the liquid inlet port is larger than the gap between the liquid passing section and the liquid separation section of the liquid separation channel away from the liquid inlet port.

[0012] Based on Technical Solution 7, there is also provided Technical Solution 8, in which the liquid outlet channel includes a liquid outlet section extending along the second direction and a liquid collecting section extending along the first direction; the liquid outlet section is connected to the liquid outlet port and is located on one side of each liquid separation channel along the first direction, and the liquid separation section and the liquid collecting section are respectively located on both sides of the liquid cooling plate along the second direction; the liquid separation channel intersects with the liquid collecting section at the liquid separation outlet and includes a plurality of first liquid separation channels and a second liquid separation channel; the second liquid separation channel is located between the liquid outlet section and the first liquid separation channel; the The second liquid separation channel includes a first section and a second section arranged along the second direction, the first section is provided with at least two first liquid separation sub-channels arranged along the first direction and extending along the second direction, each first liquid separation sub-channel intersects with the liquid separation section at a liquid separation inlet and is connected to the second section, the second section is at least partially S-shaped and intersects with the liquid collection section at a liquid separation outlet; the first liquid separation channel is provided with the liquid passing section; the positioning groove is formed in the gap of the first liquid separation channel and in the gap between the second liquid separation channel and the liquid outlet section and corresponds to the edge of the energy storage cell.

[0013] Based on Technical Solution Eight, Technical Solution Nine is also provided. In Technical Solution Nine, at least two first diverter strips extending along the first direction are arranged at intervals in the liquid collection section along the first direction, and a second diverter strip and a third diverter strip are arranged at intervals in the liquid discharge section along the first direction, the second diverter strip extends along the second direction, and the third diverter strip includes a plurality of third sub-diverter strips arranged at intervals along the second direction.

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

[0015] From the above description of the utility model and its preferred embodiments, it can be seen that, compared with the prior art, the technical solution of the utility model and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0016] In technical solution one, the positioning groove corresponds to the gap of the liquid cooling plate flow channel. Since the base is integrally formed by a stamping process, a positioning protrusion can be set on the base corresponding to each positioning groove. The positioning groove is not limited to a continuous structure, so that the flow channel design of the liquid cooling plate has fewer restrictions. The base is integrally formed by a stamping process and a positioning protrusion is set corresponding to the positioning groove. Compared with welding ribs on the base, the process is simple and the cost is low. In addition, the positioning protrusion greatly increases the strength of the base on the one hand, and on the other hand, it forms a multi-point support for the liquid cooling plate, making the liquid cooling plate less likely to deform.

[0017] In the second technical solution, the positioning groove is a continuous structure, and the positioning protrusion can form multi-point support for the liquid cooling plate, which allows the lengths of the positioning grooves of the liquid cooling plate to be inconsistent, so that the flow channel design of the liquid cooling plate is less restricted. This advantage is particularly prominent when the length of the liquid cooling plate along the first direction is long, which is conducive to achieving the uniform temperature of each energy storage cell in the technical solution seven. The liquid cooling plate is locked with the bottom bracket through the connecting piece, and the connecting piece can also support the liquid cooling plate. Therefore, the two sides of the liquid cooling plate can be supported and fixed by the connecting strip, and the middle part of the liquid cooling plate is supported by the positioning protrusion and supported and fixed by the connecting seat, so that the liquid cooling plate, the bottom bracket and the connecting piece form a multi-point support and multi-point fixed structure as a whole, which is not only low-cost, but also structurally stable, so that the liquid cooling plate is subjected to force at multiple points, avoiding bending deformation caused by only the edge being subjected to force. Among them, since the positioning protrusion is formed in advance, the positioning protrusion corresponds to the positioning groove, so the installation position of the connecting seat can be determined by the position of the positioning protrusion, and the connecting strip is located on both sides of the liquid cooling plate. The position of the connecting strip is determined by determining the length of the liquid cooling plate along the first direction and combining the position of the positioning protrusion. Therefore, in this solution, the installation position of the connecting strip and the connecting seat can be quickly and easily determined, reducing the difficulty of installation, thereby improving production efficiency and yield rate, and reducing costs. Among them, when the liquid cooling plate is locked with the bottom bracket through the connector, it can also ensure that the liquid cooling plate is grounded, ensuring the insulation and pressure resistance of the liquid cooling plate.

[0018] In technical solution three, ribs are arranged on the bottom bracket, which increases the strength of the bottom bracket and enables the flow channel of the liquid cooling plate to be supported by the ribs, thereby reducing the contact area between the flow channel of the liquid cooling plate and the bottom bracket. The positioning protrusions are convexly arranged on the ribs, which makes the process simpler and further increases the reinforcement effect of the ribs. Among them, the connecting seat is fixedly connected to the bottom bracket in the gap between the ribs, and the two connecting strips are respectively fixedly connected to the bottom bracket on both sides of each rib along the first direction, so that the installation position of the connecting seat and the connecting strip is easier to determine, and the installation is further convenient. In addition, when the energy storage cell extends along the second direction and multiple energy storage cells are arranged along the first direction, each rib can support multiple energy storage cells, and the load-bearing effect is better.

[0019] In technical solution four, the second connecting holes on both sides of the liquid cooling plate are symmetrically arranged, so that the two connecting strips can be of the same configuration, that is, basically the same process can be adopted, and the cost is lower; each second connecting hole is at least partially aligned with the first connecting hole along the first direction, which is convenient for opening holes on the one hand, and on the other hand, further makes the connection points between the liquid cooling plate and the base evenly distributed and forms a local reinforcement structure, thereby further avoiding bending and deformation of the liquid cooling plate; the connecting strip and the base are welded at intervals along the second direction, which is not only cheaper than full welding, but also prevents deformation caused by errors in components during full welding.

[0020] In technical solution five, the provision of the first insulating thermally conductive sheet and the second insulating thermally conductive sheet can, on the one hand, prevent the burr edges during the opening process of the liquid cooling plate from scratching the energy storage cell, and on the other hand, can raise the energy storage cell and have insulating thermal conductivity, thereby improving the heat exchange efficiency between the liquid cooling plate and the energy storage cell, and increasing the distance between the energy storage cell and the upper surface of the liquid cooling plate, so that more thermally conductive glue can be coated in the gap between the first insulating thermally conductive sheet and the second insulating thermally conductive sheet and the gap between the second insulating thermally conductive sheets compared to not providing the first insulating thermally conductive sheet and the second insulating thermally conductive sheet, which not only improves the thermal conductivity efficiency and the insulation efficiency, but also allows the energy storage cell to be pressed more on the thermally conductive glue, making the thermally conductive glue more uniform and better in pressure resistance, which is beneficial to improving the heat dissipation of the energy storage cell.

[0021] In technical solution six, the liquid inlet port and the liquid outlet port of the liquid cooling plate are arranged on the same side, which is conducive to the arrangement of the liquid inlet joint and the liquid outlet joint on the same side, and is more conducive to subsequent installation; because the liquid separation channel corresponds to the energy storage cell arrangement, it can adapt to the solution of multiple energy storage cells. When the area of ​​the liquid cooling plate remains unchanged, the number of liquid separation channels can be adjusted by changing the channel diameter and the channel spacing, which is more adaptable. Each liquid separation channel is arranged along the first direction and each liquid separation channel is at least partially S-shaped. The positioning groove is formed in the gap of the liquid separation channel, so that the positioning groove can be formed in one piece through the processing of the liquid separation channel, and the process is simpler. In addition, the S-shaped design of the first liquid separation channel allows the coolant to flow from one side of the liquid cooling plate to the other side and then flow to that side, thereby reducing the temperature difference on both sides of the liquid cooling plate along the second direction, which is conducive to reducing the temperature difference on both sides of the energy storage cell along the second direction.

[0022] In technical solution seven, the gap between the liquid passing section and the liquid separating section of the liquid separating channel close to the liquid inlet port is larger than the gap between the liquid passing section and the liquid separating section of the liquid separating channel far from the liquid inlet port. On the one hand, it is beneficial to make the path length of the branch channel where each liquid separating channel is located between the liquid inlet port and the liquid outlet port tend to be consistent, thereby improving the temperature uniformity; on the other hand, since the temperature of the coolant at the liquid inlet port is lower, such a setting is beneficial to maintaining the temperature balance of each liquid separating channel, thereby making the temperature of each energy storage cell more balanced, which is beneficial to improving the temperature uniformity of each energy storage cell.

[0023] In technical solution eight, it can be seen from the structural setting of the liquid separation channel that the liquid separation inlet of the second liquid separation channel is farthest from the liquid inlet port, so the temperature of the coolant in the second liquid separation channel is higher than that of other first liquid separation channels, and the second liquid separation channel includes a first section and a second section arranged along the second direction, and the first section is provided with at least two first liquid separation sub-channels arranged along the first direction and extending along the second direction. The flow rate of the first liquid separation sub-channel is fast, so that the second liquid separation channel forms a first section with a faster flow rate, so the temperature of the first section is low, and the coolant of multiple first liquid separation sub-channels converges into the second section, so the temperature of the second section is also relatively low. Therefore, the setting of the second liquid separation channel makes it far away from the liquid inlet port but the temperature is still close to that of other first liquid separation channels, so that the temperature difference of the corresponding energy storage cells is more balanced, thereby improving the temperature uniformity of each energy storage cell. Among them, the second sections of each first liquid separation channel and the second liquid separation channel converge in the liquid collecting section, and the liquid collecting section then flows into the liquid outlet section, with a fast liquid flow rate and a fast heat exchange; the first liquid separation channel is provided with a liquid passing section, and the positioning grooves are formed in the gap of the first liquid separation channel and in the gap between the second liquid separation channel and the liquid outlet section, which is conducive to processing and makes the positioning grooves evenly distributed, and opens the gap between the first liquid separation channel and the gap between the second liquid separation channel and the liquid outlet section, avoiding heat accumulation; each positioning groove corresponds to the edge of the energy storage cell, minimizing the impact on the heat dissipation of the energy storage cell.

[0024] In technical solution nine, the setting of the first diverter strip, the second diverter strip and the third diverter strip increases the flow rate, thereby increasing the heat exchange efficiency. The setting of the second and third diverter strips in the liquid outlet section is conducive to the rapid discharge of hot coolant and improves temperature uniformity.

[0025] Technical solution ten has the technical advantages of any one of technical solutions one to nine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of a supporting assembly according to an embodiment of the utility model;

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

[0029] Figure 3 This is a schematic diagram of the lower surface side of the liquid cooling plate of the embodiment of the utility model;

[0030] Figure 4It is a schematic diagram of the flow channel of the liquid cooling plate of an embodiment of the utility model;

[0031] Figure 5 It is a schematic diagram of the base and the connecting piece according to an embodiment of the utility model.

[0032] Description of main reference numerals:

[0033] Liquid cooling plate 10; positioning groove 11; first connecting hole 111; second connecting hole 12; first shunt strip 13; second shunt strip 14; third shunt strip 15; liquid inlet port 01; liquid outlet port 02; liquid inlet channel 03; liquid separation section 031; liquid outlet channel 04; liquid outlet section 041; liquid collecting section 042; liquid separation channel 05; first liquid separation channel 051; second liquid separation channel 052; liquid passing section 053; first section 054; first liquid separation sub-channel 0541; second section 055; liquid separation inlet 06; liquid separation outlet 07; bottom bracket 20; positioning protrusion 21; rib 22; connector 30; connecting seat 31; connecting strip 32; connecting part 321; first insulating thermal conductive sheet 40; second insulating thermal conductive sheet 50; supporting beam 60; energy storage cell 70; energy storage module 100. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are preferred embodiments of the utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0035] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. is to distinguish different objects rather than to describe a specific order.

[0036] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the specific protection scope of the utility model.

[0037] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0038] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0039] See also Figure 1-2 , Figure 1-2 A supporting assembly is shown, which is used for an energy storage module 100. The energy storage module 100 includes a plurality of battery packs, each of which includes N energy storage batteries 70 arranged along a first direction and extending along a second direction perpendicular to the first direction. The length direction of the energy storage battery 70 is the second direction, and the width direction of the energy storage battery 70 is the first direction. Figure 1-2 In the example, the first direction is the left-right direction, and the second direction is the front-back direction. N is a positive integer greater than 1, Figure 2 In the embodiment, the energy storage module 100 includes two battery cell packages arranged along the second direction, and each battery cell package includes four energy storage cells 70 .

[0040] The supporting assembly includes a liquid cooling plate 10, a bottom bracket 20, a connecting member 30, a first insulating heat conductive sheet 40 and a second insulating heat conductive sheet 50. Figure 1 Also shown are structures such as a support beam 60 that supports the energy storage cell 70 .

[0041] See also Figure 3-4 The liquid cooling plate 10 is provided with a flow channel, and the middle of the flow channel is avoided to form at least two positioning grooves 11 arranged along the first direction and extending along the second direction, with the opening downward; the liquid cooling plate 10 is provided with at least one first connection hole 111 arranged at intervals along the second direction on the bottom wall of each positioning groove 11, and at least two second connection holes 12 are arranged at intervals along the second direction on both sides of the liquid cooling plate 10. The second connection holes 12 on both sides of the liquid cooling plate 10 are symmetrically arranged, and each second connection hole 12 is aligned with at least part of the first connection holes 111 along the first direction. Figure 3 In the embodiment, five first connection holes 111 are formed in the middle of the liquid cooling plate 10, and the five first connection holes 111 are respectively 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. One of the first connection holes 111 is located at the center of mass of the liquid cooling plate 10. In this embodiment, the front and rear sides of the liquid cooling plate 10 are mainly bonded to the base 20 by structural adhesive.

[0042] See also Figure 4, a liquid inlet port 01 and a liquid outlet port 02 are arranged along the first direction on one side of the liquid cooling plate 10 along the second direction, a flow channel is formed between the liquid inlet port 01 and the liquid outlet port 02, and the flow channel includes a liquid inlet flow channel 03 connected to the liquid inlet port 01, a liquid outlet flow channel 04 connected to the liquid outlet port 02, and at least two liquid separation flow channels 05 corresponding to the energy storage battery cell 70, each liquid separation flow channel 05 connects the liquid inlet flow channel 03 and the liquid outlet flow channel 04, each liquid separation flow channel 05 is arranged along the first direction and each liquid separation flow channel 05 is at least partially S-shaped, and the positioning groove 11 is formed in the gap of the liquid separation flow channel 05. In this embodiment, a total of 5 liquid separation flow channels 05 are formed. The liquid inlet port 01 and the liquid outlet port 02 of the liquid cooling plate 10 are arranged on the same side, which is conducive to the arrangement of the liquid inlet joint and the liquid outlet joint on the same side, and is more conducive to subsequent installation; since the liquid separation channel 05 is arranged corresponding to the energy storage battery cell 70, it can adapt to the solution of multiple energy storage batteries 70. When the area of ​​the liquid cooling plate 10 remains unchanged, the number of liquid separation channels 05 can be adjusted by changing the channel diameter and the channel spacing, which is more adaptable. At least two of the liquid separation channels 05 are arranged along the first direction and each liquid separation channel 05 is at least partially S-shaped. The positioning groove 11 is at least partially formed in the gap of the liquid separation channel 05, so that the positioning groove 11 can be formed by processing the liquid separation channel 05 in one piece, and the process is simpler.

[0043] The liquid inlet channel 03 is provided with a liquid separation section 031 extending along the first direction; the liquid outlet channel 04 includes a liquid outlet section 041 extending along the second direction and a liquid collection section 042 extending along the first direction; the liquid outlet section 041 is connected to the liquid outlet port 02 and is located on one side of each liquid outlet channel 05 along the first direction ( Figure 4 The liquid separation section 031 and the liquid collection section 042 are respectively located on both sides of the liquid cooling plate 10 along the second direction. Each liquid separation channel 05 intersects with the liquid separation section 031 at the liquid separation inlet 06 and intersects with the liquid collection section 042 at the liquid separation outlet 07.

[0044] Since the liquid collecting section 042 and the liquid outlet section 041 are both far away from the liquid inlet port 01, the temperature of the coolant in this part is relatively high, so that the temperature of the part of the energy storage cell 70 corresponding to the liquid collecting section 042 and the liquid outlet section 041 is relatively high, which is not conducive to the uniform temperature of the energy storage cell 70. For this reason, at least two first diverter strips 13 extending along the first direction are arranged at intervals in the liquid collecting section 042, and a second diverter strip 14 and a third diverter strip 15 are arranged at intervals in the first direction in the liquid outlet section 041. The second diverter strip 14 extends along the second direction, and the third diverter strip 15 includes a plurality of third sub-diverter strips arranged at intervals in the second direction. The arrangement of the first diverter strip 13, the second diverter strip 14 and the third diverter strip 15 increases the flow rate, thereby increasing the heat exchange efficiency. The arrangement of the second diverter strip 14 and the third diverter strip 15 in the liquid outlet section 041 is conducive to the rapid discharge of the hot coolant and improves the uniform temperature.

[0045] Furthermore, since the temperature of the liquid inlet port 01 is lower than the temperature of the liquid 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 order to improve this problem, the structure of each liquid distribution channel 05 is also improved in this embodiment. Figure 4 At least part of the liquid separation channel 05 is provided with a liquid passing section 053 toward the liquid separation section 031, and the gap between the liquid passing section 053 of the liquid separation channel 05 close to the liquid inlet port 01 and the liquid separation section 031 is larger than the gap between the liquid passing section 053 of the liquid separation channel 05 far from the liquid inlet port 01 and the liquid separation section 031. On the one hand, such a setting is conducive to making the path length of the branch channel where each liquid separation channel 05 is located between the liquid inlet port 01 and the liquid outlet port 02 tend to be consistent, thereby improving the temperature uniformity; on the other hand, since the temperature of the coolant at the liquid inlet port 01 is lower, such a setting is conducive to maintaining the temperature balance of each liquid separation channel 05, thereby making the temperature of each energy storage battery cell 70 more balanced, which is conducive to improving the temperature uniformity of each energy storage battery cell 70.

[0046] Specifically, the liquid separation channel 05 includes a plurality of first liquid separation channels 051 and a second liquid separation channel 052; the second liquid separation channel 052 is located between the liquid outlet section 041 and the first liquid separation channel 051; the second liquid separation 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 separation sub-channels 0541 arranged along the first direction and extending along the second direction, Figure 4 A total of four first liquid separation sub-channels 0541 are formed, each of which intersects with the liquid separation section 031 at the liquid separation inlet 06 and connects with 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 separation outlet 07. The first liquid separation channel 051 is provided with a liquid passing section 053; the positioning groove 11 is formed in the gap between the first liquid separation channel 051 and in the gap between the second liquid separation channel 052 and the liquid outlet section 041. In this embodiment, each positioning groove 11 corresponds to the edge of the energy storage battery 70.

[0047] From the structural setting of the liquid separation channel 05, it can be seen that the liquid separation inlet 06 of the second liquid separation channel 052 is farthest from the liquid inlet port 01, so the temperature of the coolant in the second liquid separation channel 052 is higher than that of other first liquid separation channels 051. The second liquid separation 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 separation sub-channels 0541 arranged along the first direction and extending along the second direction, so that the second liquid separation channel 052 forms a first section 054 with a faster flow rate, so the temperature of the first section 054 is low, and the coolant of multiple first liquid separation sub-channels 0541 converges into the second section 055, so the temperature of the second section 055 is also relatively low. Therefore, the setting of the second liquid separation channel 052 is such that although it is far away from the liquid inlet port 01, its temperature is still close to that of other first liquid separation channels 051, so that the temperature difference of the corresponding energy storage cells 70 is more balanced, thereby improving the temperature uniformity of each energy storage cell 70. Among them, the second section 055 of each first liquid-dividing flow channel 051 and the second liquid-dividing flow channel 052 converge at the liquid-collecting section 042, and the liquid-collecting section 042 then flows into the liquid-discharging section 041, with a fast liquid flow rate and fast heat exchange; the first liquid-dividing flow channel 051 is provided with a liquid-passing section 053, and the positioning groove 11 is formed in the gap between the first liquid-dividing flow channel 051 and the gap between the second liquid-dividing flow channel 052 and the liquid-discharging section 041, which is conducive to processing, and makes the positioning groove 11 evenly distributed, and opens the gap between the first liquid-dividing flow channel 051 and the gap between the second liquid-dividing flow channel 052 and the liquid-discharging section 041, avoiding heat accumulation. Each positioning groove 11 corresponds to the edge of the energy storage battery 70, which minimizes the influence on the heat dissipation of the energy storage battery 70.

[0048] Each first liquid-dividing flow channel 051 is at least partially S-shaped, and the second section 055 of the second liquid-dividing flow channel is at least partially S-shaped, so that the flow resistance of the second liquid-dividing flow channel 052 is smaller than that of the first liquid-dividing flow channel 051 as a whole, and the second liquid-dividing flow channel 052 corresponds to at least two energy storage cells 70. Therefore, the flow rate of the second liquid-dividing flow channel 052 is fast, which is more conducive to taking away the heat of the energy storage cell 70 away from the liquid inlet port 01, thereby further improving the temperature uniformity of the energy storage cell 70; at least two first liquid-dividing flow channels 051 near the second liquid-dividing flow channel 052 are 1 corresponds to the same energy storage cell 70, therefore, the number of first liquid separation 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 close to the liquid inlet port 01; in addition, the S-shaped design of the first liquid separation channel 051 and the S-shaped design of the second section 055 of the second liquid separation channel 052 enable the coolant to flow from one side of the liquid cooling plate 10 to the other side and then flow to the 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 two sides of the energy storage cell 70 along the second direction.

[0049] The base 20 is integrally formed, see Figure 5In this embodiment, the base 20 is formed integrally by a stamping process and is an open box-shaped structure with a flange. The base 20 is provided with a plurality of positioning protrusions 21 arranged along the second direction corresponding to each positioning groove 11 to support the liquid cooling plate 10. In a 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 of the middle ribs 22 is provided with at least two protrusions arranged along the first direction. Figure 5 There are three middle protrusions, and the protrusions form positioning protrusions 21, that is, the positioning protrusions 21 are protruded on 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. When the ribs 22 are arranged 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, and the load-bearing effect is better. The ribs 22 are arranged on the base 20, which increases the strength of the base 20, and allows the flow channel of the liquid cooling plate 10 to be supported by the ribs 22, reducing the contact area between the flow channel of the liquid cooling plate 10 and the base 20. The protrusions on the ribs 22 form positioning protrusions 21, which makes the process simpler and further increases the reinforcement 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.

[0050] See also Figure 5 , the connecting member 30 is fixedly connected to the base 20 and its top surface is flush with the positioning protrusion 21, and it includes a connecting seat 31 and two connecting strips 32 corresponding to each first connecting hole 111; the two connecting strips 32 are respectively arranged on both sides of the base 20 along the first direction and extend along the second direction, and each connecting strip 32 is provided with a connecting portion 321 that is equal in number and corresponds to the second connecting holes 12 on the corresponding side of the liquid cooling plate 10; the connecting seat 31 and the connecting portion 321 are respectively suitable for locking with the first connecting hole 111 and the second connecting hole 12. In this embodiment, the connecting seat 31 is fixedly connected to the base 20 in the gap of the rib 22, and the two connecting strips 32 are respectively fixedly connected 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. Compared with full welding, interval welding is not only more cost-effective, but also prevents deformation caused by errors in components during full welding. The connecting seat 31 is welded to the base 20.

[0051] See also Figure 1The first insulating heat conductive sheet 40 corresponds to the position of the connecting strip 32 and is in contact with the upper surface of the liquid cooling plate 10 and is suitable for covering each second connection hole 12. The second insulating heat conductive sheet 50 corresponds to the position of each positioning groove 11 and is in contact with the upper surface of the liquid cooling plate 10 and is suitable for covering each first connection hole 111. In this embodiment, the first insulating heat conductive sheet 40 and the second insulating heat conductive sheet 50 are preferably PC boards or epoxy boards. The arrangement of the first insulating heat conductive sheet 40 and the second insulating heat conductive sheet 50 can prevent the burr edges of the liquid cooling plate 10 from scratching the energy storage battery 70 during the hole opening process, and can also raise the energy storage battery 70 and have an insulating The thermal conductivity is improved, thereby improving the heat exchange efficiency between the liquid cooling plate 10 and the energy storage battery cell 70, and increasing the distance between the energy storage battery cell 70 and the upper surface of the liquid cooling plate 10, so that more thermal conductive glue can be coated in the gap between the first insulating thermal conductive sheet 40 and the second insulating thermal conductive sheet 50 and the gap between the second insulating thermal conductive sheets 50 compared to when the first insulating thermal conductive sheet 40 and the second insulating thermal conductive sheet 50 are not provided, which not only improves the thermal conductivity efficiency and the insulation efficiency, but also allows the energy storage battery cell 70 to be pressed more on the thermal conductive glue, making the thermal conductive glue more uniform and better in pressure resistance, which is beneficial to improving the heat dissipation of the energy storage battery cell 70.

[0052] also, Figure 1 Three support beams 60 are also shown, which are arranged along the second direction and extend along the first direction. Each support beam 60 is screwed and welded to the bottom bracket 20. When the support beam 60 is screwed and welded to the bottom bracket 20, the liquid cooling plate 10 should be avoided. Both ends of each energy storage cell 70 are supported on two support beams 60, respectively. The support beam 60 located in the middle of the liquid cooling plate 10 along the first direction is provided with a through hole corresponding to the first connection hole 111 and the second connection hole 12, and the first insulating heat conductive sheet 40 and the second insulating heat conductive sheet 50 avoid each support beam 60.

[0053] In this embodiment, the positioning groove 11 corresponds to the gap of the flow channel of the liquid cooling plate 10. Since the bottom bracket 20 is integrally formed by a stamping process, a positioning protrusion 21 can be set on the bottom bracket 20 corresponding to each positioning groove 11. The positioning groove 11 is not limited to a continuous structure, so that the flow channel design of the liquid cooling plate 10 is less restricted. The bottom bracket 20 is integrally formed by a stamping process and positioned corresponding to the positioning groove 11. Compared with welding ribs on the bottom bracket 20, the process is simple and the cost is low. In addition, the positioning protrusion 21 greatly increases the strength of the bottom bracket 20 on the one hand, and forms a multi-point support for the liquid cooling plate 10 on the other hand, so that the liquid cooling plate 10 is not easy to bend and deform. In this embodiment, the positioning groove 11 is a continuous structure, and the positioning protrusion 21 can form a multi-point support for the liquid cooling plate 10, which allows the lengths of the positioning grooves 11 of the liquid cooling plate 10 to be inconsistent, so that the flow channel design of the liquid cooling plate 10 is less restricted. This advantage is particularly prominent when the length of the liquid cooling plate 10 along the first direction is long, which is conducive to achieving the uniform temperature of each energy storage battery 70.

[0054] The liquid cooling plate 10 is locked with the base 20 by the connecting piece 30, and the connecting piece 30 can also support the liquid cooling plate 10. Therefore, the left and right sides of the liquid cooling plate 10 can be supported and fixed by the connecting strips 32, and the middle part of the liquid cooling plate 10 is supported by the positioning protrusions 21 and supported and fixed by the connecting seat 31. The front and rear sides of the liquid cooling plate 10 are bonded to the base 20 by structural adhesive, so that the liquid cooling plate 10, the base 20 and the connecting piece 30 form a multi-point support and multi-point fixed structure as a whole, which is not only low in cost but also has a stable structure, so that the liquid cooling plate 10 is subjected to force at multiple points, avoiding bending deformation caused by only the edge being subjected to force. Among them, since the positioning protrusion 21 is formed in advance, the positioning protrusion 21 corresponds to the positioning groove 11, so the installation position of the connecting seat 31 can be determined by the position of the positioning protrusion 21, and the connecting strip 32 is located on both sides of the liquid cooling plate 10, and is located 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 side edges of each rib 22 along the first direction. Therefore, in this embodiment, the installation position of the connecting strip 32 and the connecting seat 31 can be quickly and easily determined, reducing the difficulty of installation, thereby improving production efficiency and yield rate, and reducing costs. When the liquid cooling plate 10 is locked with the base 20 through the connector 30, it can also ensure that the liquid cooling plate 10 is grounded, ensuring the insulation and pressure resistance of the liquid cooling plate 10.

[0055] 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 be of the same configuration, that is, basically the same process can be adopted, and the cost is lower; each second connecting hole 12 is at least partially aligned with the first connecting hole 111 along the first direction, on the one hand, it is convenient for opening holes, and on the other hand, it further makes the connection points between the liquid cooling plate 10 and the base 20 evenly distributed at multiple points and forms a reinforced structure, thereby further avoiding bending and deformation of the liquid cooling plate 10.

[0056] This embodiment also provides an energy storage module 100, which adopts the middle support assembly of Embodiment 1 and has the same advantages as Embodiment 1.

[0057] It should be understood that in actual applications, the energy storage module 100 will also include electrical components such as an outer cover, a battery cell group, a wiring copper bus, a wiring terminal, a safety switch, a sensor, etc. The supporting assembly is fixedly connected to the outer cover to form a shell that can accommodate the battery cell group. The battery cell groups can be connected in series through the wiring copper bus and then electrically connected to external devices through the wiring terminal. This part belongs to the existing technology and will not be repeated here.

[0058] The description of the above specification and embodiments is used to explain the protection scope of the utility model, but does not constitute a limitation on the protection scope of the utility model. Through the enlightenment of the utility model or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent replacements or other improvements to the embodiments of the utility model or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the utility model.

Claims

1. A supporting assembly for supporting an energy storage battery cell (70) and dissipating heat therefrom, characterized in that: include A liquid cooling plate (10) is provided with a flow channel, wherein the center thereof avoids the flow channel to form at least two downwardly opening positioning grooves (11); a bottom bracket (20) is integrally formed by a stamping process, and is provided with a positioning protrusion (21) corresponding to each positioning groove (11) to support the liquid cooling plate (10); and The connecting piece (30) avoids the positioning protrusion (21) and is fixedly connected to the base (20), and is also suitable for being locked with the liquid cooling plate (10).

2. A support assembly according to claim 1, characterized in that: Each positioning groove (11) is arranged along a first direction and extends along a second direction perpendicular to the first direction; the base (20) is provided with a plurality of positioning protrusions (21) arranged along the second direction corresponding to each positioning groove (11); the liquid cooling plate (10) is provided with at least one first connection hole (111) that avoids the positioning protrusion (21) at intervals along the second direction on the bottom wall of each positioning groove (11), and at least two second connection holes (12) are also provided at intervals along the second direction on both sides thereof along the first direction; The connecting member (30) is suitable for supporting the liquid cooling plate (10), and comprises a connecting seat (31) and two connecting bars (32) corresponding to each first connecting hole (111); the top surface of the connecting seat (31) is flush with the top surface of the positioning protrusion (21); the two connecting bars (32) are respectively arranged on both sides of the base (20) along the first direction and extend along the second direction, and each connecting bar (32) is provided with a connecting portion (321) equal in number to the second connecting holes (12) on the corresponding side of the liquid cooling plate (10) and corresponding to each other; the connecting seat (31) and the connecting portion (321) are respectively suitable for being locked with the first connecting hole (111) and the second connecting hole (12).

3. A support assembly according to claim 2, characterized in that: A plurality of ribs (22) extending along the first direction are arranged on the base (20) along the second direction, and the positioning protrusions (21) are protruding from the ribs (22); the connecting seat (31) is fixedly connected to the base (20) in the gaps between the ribs (22); and two connecting bars (32) are respectively fixedly connected to the base (20) on both sides of each rib (22) along the first direction.

4. A support assembly according to claim 3, characterized in that: The second connection holes (12) on both sides of the liquid cooling plate (10) are symmetrically arranged, and each second connection hole (12) is aligned with at least part of the first connection holes (111) along the first direction; the connection strip (32) and the base (20) are welded at intervals along the second direction.

5. A supporting assembly according to any one of claims 2 to 4, characterized in that: The invention also includes two first insulating heat-conducting sheets (40) and second insulating heat-conducting sheets (50) whose number is equal to and corresponds to the positioning grooves (11). The first insulating heat-conducting sheets (40) are in contact with the upper surface of the liquid cooling plate (10) at positions corresponding to the connecting strips (32) and are suitable for covering each second connection hole (12). The second insulating heat-conducting sheets (50) are in contact with the upper surface of the liquid cooling plate (10) at positions corresponding to each positioning groove (11) and are suitable for covering each first connection hole (111).

6. A support assembly according to claim 1, characterized in that: There are at least two energy storage cells (70), each of which is arranged along a first direction and extends along a second direction; a liquid inlet port (01) and a liquid outlet port (02) are arranged along the first direction on one side of the liquid cooling plate (10) along the second direction; a flow channel is formed between the liquid inlet port (01) and the liquid outlet port (02); the flow channel comprises a liquid inlet flow channel (03) connected to the liquid inlet port (01), a liquid outlet flow channel (04) connected to the liquid outlet port (02), and at least two liquid separation flow channels (05) arranged corresponding to the energy storage cells (70); each liquid separation flow channel (05) is connected to the liquid inlet flow channel (03) and the liquid outlet flow channel (04); each liquid separation flow channel (05) is arranged along the first direction and each liquid separation flow channel (05) is at least partially S-shaped; and the positioning groove (11) is at least partially formed in the gap between the liquid separation flow channels (05).

7. A support assembly according to claim 6, characterized in that: The liquid inlet channel (03) is provided with a liquid separation section (031) extending along a first direction; each liquid separation channel (05) intersects with the liquid separation section (031) at a liquid separation inlet (06) and intersects with the liquid outlet channel (04) at a liquid separation outlet (07); at least two liquid separation channels (05) are provided with a liquid flow section (053) facing the liquid separation section (031), and the gap between the liquid flow section (053) of the liquid separation channel (05) close to the liquid inlet port (01) and the liquid separation section (031) is larger than the gap between the liquid flow section (053) of the liquid separation channel (05) away from the liquid inlet port (01) and the liquid separation section (031).

8. A support assembly according to claim 7, characterized in that: The liquid outlet channel (04) comprises a liquid outlet section (041) extending along the second direction and a liquid collecting section (042) extending along the first direction; the liquid outlet section (041) is connected to the liquid outlet port (02) and is located on one side of each liquid separation channel (05) along the first direction, and the liquid separation section (031) and the liquid collecting section (042) are respectively located on both sides of the liquid cooling plate (10) along the second direction; the liquid separation channel (05) and the liquid collecting section (042) intersect at the liquid separation outlet (07) and comprise a plurality of first liquid separation channels (051) and a second liquid separation channel (052); the second liquid separation channel (052) is located between the liquid outlet section (041) and the first liquid separation channel (051); The second liquid separation channel (052) comprises a first section (054) and a second section (055) arranged along the second direction, the first section (054) being provided with at least two first liquid separation sub-channels (0541) arranged along the first direction and extending along the second direction, each first liquid separation sub-channel (0541) intersecting with the liquid separation section (031) at a liquid separation inlet (06) and communicating with the second section (055), the second section (055) being at least partially S-shaped and intersecting with the liquid collection section (042) at a liquid separation outlet (07); The first liquid separation channel (051) is provided with the liquid passing section (053); the positioning groove (11) is formed in the gap of the first liquid separation channel (051) and in the gap between the second liquid separation channel (052) and the liquid outlet section (041), and corresponds to the edge of the energy storage battery (70).

9. A support assembly according to claim 8, characterized in that: At least two first diverter strips (13) extending along the first direction are arranged at intervals in the liquid collecting section (042), and a second diverter strip (14) and a third diverter strip (15) are arranged at intervals in the liquid outlet section (041) along the first direction, wherein the second diverter strip (14) extends along the second direction, and the third diverter strip (15) includes a plurality of third sub-diverter strips arranged at intervals in the second direction.

10. An energy storage module (100), characterized in that: It adopts the supporting component described in any one of claims 1-9.

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