Thermal management assembly and battery

Abstract

The application discloses a kind of heat management components and battery, belong to battery technical field, heat management component includes heat exchange support, liquid inlet pipe and liquid outlet pipe;Heat exchange support has multiple, multiple heat exchange supports are arranged side by side, every heat exchange support is provided with liquid inlet, liquid outlet, heat exchange cavity and cell mounting hole, liquid inlet and liquid outlet are communicated with heat exchange cavity, heat exchange cavity and cell mounting hole are mutually isolated, and with cell mounting hole at least share part wall body;Liquid inlet pipe is communicated with the liquid inlet of multiple heat exchange supports;Liquid outlet pipe is communicated with the liquid outlet of multiple heat exchange supports.The application is directly individually disassembled heat exchange support of failure or heat exchange support where failure cell is located by being set as multiple heat exchange supports with heat exchange cavity when battery is maintained, so that maintenance process does not damage adjacent functional normal component.Such that, battery maintenance is convenient and maintenance economy is good.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a thermal management component and a battery. Background Technology

[0002] A power battery, also known as a power storage battery, is a device that provides core electrical energy to electric vehicles and other electrical equipment. A power battery consists of numerous cells connected in series, parallel, or a combination thereof. With the rapid development of the new energy vehicle and energy storage markets, the demand for high-energy-density power batteries is increasing. However, excessively low battery operating temperatures can slow down the internal electrochemical reaction rate, reducing battery efficiency; conversely, excessively high temperatures can lead to capacity decay, reduced lifespan, and even the risk of thermal runaway. Therefore, temperature management devices are needed to regulate the battery's operating temperature, ensuring it operates within a suitable temperature range to guarantee optimal battery performance and reliability.

[0003] In related technologies, a thermal management plate is placed on the side or one end of the battery cell to thermally couple with it, thereby managing the cell's temperature. However, during battery production, expanding foam is filled between the thermal management plate and the battery cell. When the thermal management plate or battery cell malfunctions and needs to be replaced, it is difficult to remove the thermal management plate and related components from the cured adhesive, and disassembly can also affect the functioning battery cells. This results in high maintenance difficulty and high maintenance costs for the battery. Utility Model Content

[0004] This application provides a thermal management component and a battery to at least solve the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a thermal management component is provided. This component includes heat exchange brackets, an inlet pipe, and an outlet pipe. Multiple heat exchange brackets are arranged side-by-side. Each heat exchange bracket has an inlet, an outlet, a heat exchange chamber, and a cell mounting hole. The inlet and outlet are connected to the heat exchange chamber, which is isolated from the cell mounting hole and shares at least a portion of its wall with it. The inlet pipe is connected to the inlet of the multiple heat exchange brackets, and the outlet pipe is connected to the outlet of the multiple heat exchange brackets. Thus, by configuring the thermal management component with multiple heat exchange brackets having heat exchange chambers, during battery maintenance, the faulty heat exchange bracket or the heat exchange bracket containing the faulty cell can be directly and individually disassembled, preventing damage to adjacent functional components during maintenance. This makes battery maintenance convenient and economical.

[0006] Optionally, the heat exchange chamber has a top wall, with both the inlet and outlet located on the top wall. This allows the heat exchange medium flowing in from the inlet to flow into the heat exchange chamber under gravity, and the heat exchange medium to be discharged from the outlet once the chamber is full. This not only reduces the resistance to the flow of the heat exchange medium into the heat exchange chamber from the inlet, but also improves the sufficiency of heat exchange between the heat exchange medium and the battery cell.

[0007] Optionally, the heat exchange chamber also has a bottom wall facing the top wall, and a liquid guide pipe is provided in the heat exchange chamber. One end of the liquid guide pipe is connected to the liquid inlet, and the other end extends towards the bottom wall. In this way, the heat exchange medium from the liquid inlet can be preferentially guided to the bottom of the heat exchange chamber through the liquid guide pipe, which helps to increase the flow path of the heat exchange medium from the liquid inlet in the heat exchange chamber, thereby improving the adequacy of heat exchange between the heat exchange medium and the battery cell.

[0008] Optionally, a stepped groove is provided on the outer surface of the heat exchange support on the side of the top wall away from the bottom wall, and at least one of the liquid inlet and liquid outlet is provided in the stepped groove; thus, the docking structure between the liquid inlet and the liquid outlet pipe is provided in the stepped groove, so as to reduce the height of the thermal management component and improve the structural compactness; or, the docking structure between the liquid outlet and the liquid outlet pipe is provided in the stepped groove, so as to reduce the height of the thermal management component and improve the structural compactness. And / or, the end of the liquid guide tube furthest from the inlet is positioned closer to the bottom wall than the outlet, and the distance between the outlet and the bottom wall is no greater than the distance between the inlet and the bottom wall. This allows the heat exchange medium flowing into the heat exchange chamber from the liquid guide tube to first flow towards the bottom wall, and then flow towards the outlet along with the flow of the heat exchange medium, ensuring that the new heat exchange medium remains in the heat exchange chamber for a longer period, thereby improving heat exchange efficiency.

[0009] Optionally, multiple baffles are provided in the heat exchange cavity, and the baffles are arranged sequentially at intervals along the axis of the battery cell mounting holes; a flow port 539 is provided on the baffle 5352, and the flow port 539 connects the spaces located on both sides of the baffle 5352. In this way, the turbulence of the heat exchange medium flowing in the heat exchange cavity can be reduced, so that the heat exchange medium flows smoothly and uniformly, thereby improving the heat exchange efficiency.

[0010] Optionally, the heat exchange bracket has a cylindrical portion that surrounds the wall of the battery cell mounting hole, a partition is sleeved on the cylindrical portion, and an overflow port is provided at the edge of the partition away from the cylindrical portion. This enhances the structural strength of the part where the heat exchange bracket mates with the battery cell, thereby improving the stability of the mating between the heat exchange bracket and the battery cell.

[0011] Optionally, each heat exchange bracket has a protrusion at one end and a recess at the other end. In two adjacent heat exchange brackets, the protrusion of one heat exchange bracket is inserted into the recess of the other heat exchange bracket and contacts the inner surface of the recess.

[0012] Optionally, the recess is a V-shaped groove that extends along the axis of the cell mounting hole, and the two sides of the convex part contact the two groove walls of the recess. In this way, the positioning between two adjacent heat exchange brackets can be achieved through the cooperation of the convex and recess parts, which can improve the positional accuracy between the heat exchange brackets and improve the battery assembly efficiency.

[0013] Optionally, a liquid inlet plug is provided on the outer surface of the heat exchange bracket. The liquid inlet plug is connected to the liquid inlet and is plugged into or expanded with the liquid inlet pipe. And / or, the outer surface of the heat exchange bracket is provided with a liquid outlet plug, which connects to the liquid outlet and is plugged into or expanded to the liquid outlet pipe. This improves the ease of connection and the reliability of overcurrent.

[0014] Optionally, a glue injection groove is provided on the wall of the cell mounting hole, with one end of the groove communicating with the opening of the cell mounting hole and the other end extending along the axis of the cell mounting hole. In this way, glue can be filled between the cell and the wall of the cell mounting hole through the glue injection groove to eliminate the gap between the cell and the cell mounting hole, thereby increasing the heat exchange area between the cell and the heat exchange bracket and improving heat exchange efficiency.

[0015] Optionally, the thermal management component includes multiple management columns arranged in parallel along a first direction, and each management column includes multiple heat exchange brackets arranged in parallel along a second direction; wherein the heat exchange brackets arranged along the second direction are in contact with each other in sequence. This arrangement ensures that the battery contains numerous cells, and that these cells are neatly arranged, facilitating assembly and maintenance.

[0016] Optionally, there are multiple liquid inlet pipes, each extending along a first direction, and each liquid inlet pipe is connected to the liquid inlet of at least one management column. This results in a neat layout of the liquid inlet pipes, thereby improving battery assembly efficiency and ease of maintenance.

[0017] Optionally, the thermal management assembly also includes a main liquid inlet pipe, with one end of multiple liquid inlet pipes connected to the main liquid inlet pipe. This simplifies the piping structure at the liquid inlet end of the liquid inlet pipes, thereby reducing battery size and improving battery structural compactness.

[0018] Optionally, a main inlet port is provided at the middle of the length of the main inlet pipe. This can improve the uniformity of the heat exchange medium in each inlet pipe, thereby improving the consistency of the battery cells.

[0019] Optionally, there are multiple outlet pipes, each extending along a first direction, and each outlet pipe is connected to the outlet of at least one management column. This results in a neat layout of the outlet pipes, thereby improving battery assembly efficiency and ease of maintenance.

[0020] Optionally, the thermal management assembly also includes a main outlet manifold, with one end of each of the multiple outlet pipes connected to the main outlet manifold. This simplifies the piping structure at the outlet ends of the outlet pipes, thereby reducing battery size and improving battery structural compactness.

[0021] Optionally, a main outlet port is provided at the middle of the length of the main outlet pipe. This can improve the uniformity of heat exchange medium flow in each outlet pipe, thereby improving the consistency of the battery cells.

[0022] Optionally, the heat exchange bracket includes a bracket body and a support plate. The cell mounting holes, heat exchange chamber, liquid inlet, and liquid outlet are all located on the bracket body. A stepped through-hole is provided on the support plate, with the large-diameter hole of the stepped through-hole positioned close to and communicating with the cell mounting hole. This makes the heat exchange bracket a discrete component, thereby reducing the molding difficulty of the heat exchange bracket and improving the economics of the battery.

[0023] According to a second aspect of this application, a battery is provided, comprising a battery cell, a CCS module, and the aforementioned thermal management component; multiple battery cells are disposed in a battery cell mounting hole; the CCS module connects the electrodes of the multiple battery cells. Thus, by configuring the thermal management component as multiple heat exchange brackets with heat exchange chambers, during battery maintenance, the faulty heat exchange bracket or the heat exchange bracket containing the faulty battery cell can be directly and individually disassembled, ensuring that the maintenance process does not damage adjacent functional components. This makes battery maintenance convenient and economical.

[0024] Optionally, a thermally conductive structural adhesive is applied between the battery cell and the wall of the corresponding battery cell mounting hole. This eliminates the gap between the battery cell and the mounting hole, thereby increasing the heat exchange area between the battery cell and the heat exchange bracket and improving heat exchange efficiency.

[0025] Optionally, the battery also includes a cover and a housing, with the cover fitting together. The thermal management components, battery cells, and CCS components are all housed within the housing. This design, using the housing and cover, defines the space for installing components such as the battery cells, thus protecting these components and improving battery reliability.

[0026] Optionally, the battery also includes a tray, which is disposed in the housing and has multiple mounting positions on the side of the tray facing the housing cover. Multiple heat exchange brackets are respectively disposed in one mounting position. In this way, each heat exchange bracket can be positioned and installed by the tray, which helps to improve the positional stability of the heat exchange bracket in the housing. And / or, the battery also includes a bottom protection plate, which is located on the side of the casing away from the cover. In this way, the bottom protection plate can enhance the structural strength of the battery, thereby improving its resistance to external physical impacts. It can also isolate the battery from harsh environments, protecting the battery structure and internal cells, thus improving battery reliability and lifespan.

[0027] The beneficial effects of the embodiments of this application are as follows: In the thermal management component of this application embodiment, by configuring the thermal management component as multiple heat exchange brackets with heat exchange chambers, the faulty heat exchange bracket or the heat exchange bracket containing the faulty cell can be directly and individually disassembled during battery maintenance, so that the maintenance process does not damage adjacent functional components. This makes battery maintenance convenient and economical.

[0028] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0030] Figure 1 This is a schematic diagram of the battery structure provided in an exemplary embodiment of this application; Figure 2 This is a schematic diagram of the thermal management component and the CCS component working together in an exemplary embodiment of this application; Figure 3 This is a schematic diagram of the structure of some components of the thermal management assembly provided in an exemplary embodiment of this application; Figure 4 This is a schematic diagram of the structure of the heat exchange bracket provided in an exemplary embodiment of this application; Figure 5 This is an internal cross-sectional view of the heat exchange bracket provided in an exemplary embodiment of this application; Figure 6 This is a schematic diagram showing the battery cell located inside the battery cell mounting hole according to an exemplary embodiment of this application; Figure 7 This is a schematic diagram of the battery cell and battery cell mounting hole mating in an exemplary embodiment of this application; Figure 8 This is a schematic diagram of the structure of the inlet pipe and outlet pipe provided in an exemplary embodiment of this application.

[0031] Explanation of reference numerals in the attached figures: 1000-battery; 100 - CCS assembly; 116 - Convex portion; 117 - Recess portion; 700 - Thermal Management Components; 701 - Management Columns; 71-Inlet pipe; 72-Outlet pipe; 73-Main inlet pipe; 731-Main inlet interface; 74-Main outlet pipe; 741-Main outlet interface; 51-cell; 53-Heat exchange bracket; 531-Cell mounting hole; 532-Bracket body; 533-Pattern; 5331-Stepped through hole; 5341-Liquid inlet; 5342-Liquid outlet; 5343-Heat exchange chamber; 5344-Top wall; 5345-Bottom wall; 5351-Liquid guide pipe; 5352-Baffle plate; 5353-Cylinder section; 536-Step groove; 5371-Liquid inlet plug; 5372-Liquid outlet plug; 538-Glue injection tank; 539-Flow port; 54 - Thermally conductive structural adhesive; 61-Box cover; 62-Box body; 63-Flange bolts; 64-Pattern; 641-Mounting position; 65-Bottom guard plate. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0033] The following combination Figures 1 to 2 The present application provides a detailed description of a thermal management component 700 and a battery 1000 provided in the embodiments of this application.

[0034] Please see Figure 1 and Figure 2 This application provides a battery 1000, which includes battery cells 51, a CCS (Cell Contacting System) assembly 100, and the aforementioned thermal management assembly 700. Multiple battery cells 51 are disposed in a battery cell mounting hole 531. The CCS assembly 100 connects the electrodes of the multiple battery cells 51.

[0035] It is understood that the CCS assembly 100 includes a flow channel and a plastic support covering the portion of the flow channel other than its connection points. The CCS assembly 100 may also include a data acquisition unit that can acquire voltage information from the flow channel and send the acquired information to the battery 1000 management system to monitor the operating status of the battery 1000.

[0036] Among them, the battery cells 51 can be connected in series, in parallel, or in a mixed manner. Mixed connection means that multiple battery cells 51 are connected in both series and parallel.

[0037] The battery cell 51 can be a secondary battery 1000 or a primary battery 1000; the battery cell 51 can also be a lithium-sulfur battery 1000, a sodium-ion battery 1000 or a magnesium-ion battery 1000, but is not limited to these. The battery cell 51 can be cylindrical, flat, cuboid or other shapes.

[0038] For example, cell 51 is a cylindrical cell 51. For instance, cell 51 is a large cylindrical cell 51, specifically a 46 series cylindrical cell 51, such as 4680, 4695, 46110, 46120, 46150, etc.

[0039] Please see Figures 2 to 5 The thermal management component 700 includes a heat exchange bracket 53, an inlet pipe 71, and an outlet pipe 72. Multiple heat exchange brackets 53 are arranged side-by-side. Each heat exchange bracket 53 has an inlet port 5341, an outlet port 5342, a heat exchange chamber 5343, and a battery cell mounting hole 531. Both the inlet port 5341 and the outlet port 5342 are connected to the heat exchange chamber 5343. The heat exchange chamber 5343 is isolated from the battery cell mounting hole 531 and shares at least a portion of its wall with the battery cell mounting hole 531. The inlet pipe 71 is connected to the inlets 5341 of the multiple heat exchange brackets 53. The outlet pipe 72 is connected to the outlets 5342 of the multiple heat exchange brackets 53.

[0040] It is understood that the heat exchange cavity 5343 at least covers a portion of the cell mounting hole 531, such that the heat exchange cavity 5343 and the cell mounting hole 531 share at least a portion of their walls. Specifically, along the circumferential direction of the cell mounting hole 531, the heat exchange cavity 5343 covers the cell mounting hole 531, such that the wall forming the hole wall of the cell mounting hole 531 is also the wall forming a portion of the inner wall of the heat exchange cavity 5343.

[0041] It is understood that the battery cell 51 is installed in the battery cell mounting hole 531, such as Figure 7 As shown. The cell mounting hole 531 can be a through hole or a blind hole.

[0042] It is understandable that the battery cell mounting hole 531 and the heat exchange chamber 5343 are not connected.

[0043] It is understood that the heat exchange chamber 5343 is filled with a heat exchange medium, which can be deionized water. After the temperature control device (e.g., a heat pump system) adjusts the temperature of the heat exchange medium to the target value, it is sent into the inlet pipe 71, so that it sequentially enters the inlet port 5341 of each heat exchange bracket 53. The heat exchange medium flows from the inlet port 5341 into the heat exchange chamber 5343, thereby exchanging heat with the battery cell 51 located in the battery cell mounting hole 531 through the hole wall, thus adjusting the temperature of the battery cell 51 to achieve heating or cooling. Then, the heat exchange medium in the heat exchange chamber 5343 is discharged from the outlet port 5342 and flows into the temperature control device through the outlet pipe 72 for the next cycle.

[0044] The heat exchange brackets 53 can be in contact with each other, or a positioning plate can be set between the two adjacent heat exchange brackets 53. The positioning plate is connected to the tray 64, and the heat exchange brackets 53 can be inserted into the tray 64.

[0045] It is understandable that when assembling battery 1000, multiple heat exchange brackets 53 can be fixed by tray 64, or they can directly abut against the heat exchange brackets 53 through the inner wall of the box 62 to limit each heat exchange bracket 53.

[0046] It is understandable that the heat exchange bracket 53 can be provided with one or more battery cell mounting holes 531. For example, the heat exchange bracket 53 can be provided with nine battery cell mounting holes 531, and three battery cell mounting holes 531 are grouped together. The three battery cell mounting holes 531 in each group are arranged in a structure resembling the mathematical symbol "because": ∵. Figure 4 As shown.

[0047] For example, the heat exchange cavity 5343 covers the wall of the cell mounting hole 531, thereby circumferentially covering the cell 51 located within the cell mounting hole 531. This results in a large heat exchange area and uniform circumferential heat exchange between the thermal management component 700 and the cell 51, thereby improving the heat exchange efficiency of the cell 51. Furthermore, the heat exchange cavity 5343 covering the wall of the cell mounting hole 531 can also reduce the temperature difference between different areas of the cell 51, thereby improving the consistency of the cell 51 and thus enhancing the reliability of the battery 1000.

[0048] In this embodiment, by configuring the thermal management component 700 as multiple heat exchange brackets 53 with heat exchange chambers 5343, during battery 1000 maintenance, the faulty heat exchange bracket 53 or the heat exchange bracket 53 containing the faulty cell 51 can be directly and individually disassembled, so that the maintenance process does not damage adjacent functional components. This makes battery 1000 maintenance convenient and economical.

[0049] Furthermore, in this embodiment, when applied to battery 1000, it is not necessary to fill the battery 1000 with glue. Therefore, maintenance of battery 1000 does not involve removing the glue, making maintenance of battery 1000 more convenient and reducing the probability of battery 1000 being scrapped due to the difficulty of removing the glue. Specifically, not filling the battery 1000 with glue means not filling the space between the casing and the bracket for mounting the battery cell 51, or between the heat exchange bracket 53. However, within each heat exchange bracket 53, glue can be filled between the battery cell 51 and the wall of the battery cell mounting hole 531 as needed.

[0050] Please see Figure 5 In some embodiments, the heat exchange cavity 5343 has a top wall 5344, with both the inlet 5341 and the outlet 5342 located on the top wall 5344. This allows the heat exchange medium flowing in from the inlet 5341 to flow into the heat exchange cavity 5343 under gravity, and for the heat exchange medium to be discharged from the outlet 5342 once the cavity is full. This not only reduces the resistance to the flow of the heat exchange medium from the inlet 5341 into the heat exchange cavity 5343, but also improves the sufficiency of heat exchange between the heat exchange medium in the heat exchange cavity 5343 and the battery cell 51.

[0051] It is understandable that when the battery 1000 is in use, the top wall 5344 is the inner wall of the heat exchange chamber 5343 that is away from the direction of gravity.

[0052] Please see Figure 5 In some embodiments, the heat exchange cavity 5343 further has a bottom wall 5345 facing the top wall 5344. A liquid guide pipe 5351 is provided in the heat exchange cavity 5343. One end of the liquid guide pipe 5351 is connected to the liquid inlet 5341, and the other end extends towards the bottom wall 5345. In this way, the heat exchange medium from the liquid inlet 5341 can be preferentially introduced into the bottom of the heat exchange cavity 5343 through the liquid guide pipe 5351, so as to increase the flow path of the heat exchange medium from the liquid inlet 5341 in the heat exchange cavity 5343, thereby improving the sufficiency of heat exchange between the heat exchange medium in the heat exchange cavity 5343 and the battery cell 51.

[0053] It is understandable that when the battery 1000 is in use, the bottom wall 5345 is the inner wall of the heat exchange chamber 5343 near the direction of gravity.

[0054] In addition, no pipe is installed in the part of the heat exchange chamber 5343 near the liquid outlet 5342, which can reduce the flow resistance when the heat exchange medium is discharged from the liquid outlet 5342.

[0055] It is understood that the liquid guide tube 5351 is located in the heat exchange chamber 5343 and can be connected to the inner wall of the molded heat exchange chamber 5343 of the heat exchange bracket 53, or directly inserted into the liquid inlet 5341.

[0056] Please see Figure 4 and Figure 5 In some embodiments, a stepped groove 536 is provided on the outer surface of the heat exchange bracket 53 on the side of the top wall 5344 facing away from the bottom wall 5345, and at least one of the liquid inlet 5341 and the liquid outlet 5342 is disposed in the stepped groove 536. This allows the connection structure between the liquid inlet 5341 and the liquid outlet pipe 72 to be disposed within the stepped groove 536, thereby reducing the height of the thermal management component 700 and improving structural compactness; or, the connection structure between the liquid outlet 5342 and the liquid outlet pipe 72 is disposed within the stepped groove 536, thereby reducing the height of the thermal management component 700 and improving structural compactness.

[0057] In some embodiments, the end of the liquid guide pipe 5351 furthest from the liquid inlet 5341 is positioned closer to the bottom wall 5345 than the liquid outlet 5342, and the distance between the liquid outlet 5342 and the bottom wall 5345 is no greater than the distance between the liquid inlet 5341 and the bottom wall 5345. This allows the heat exchange medium flowing from the liquid guide pipe 5351 into the heat exchange chamber 5343 to first flow towards the bottom wall 5345, and then flow towards the liquid outlet 5342 as the heat exchange medium continues to flow, ensuring that the new heat exchange medium remains in the heat exchange chamber 5343 for a longer period, thereby improving heat exchange efficiency.

[0058] Please see Figure 5 In some embodiments, a plurality of baffles 5352 are provided in the heat exchange cavity 5343. The baffles 5352 are arranged sequentially at intervals along the axis of the cell mounting hole 531. A flow port 539 is provided in each baffle 5352. The flow port 539 connects the spaces located on both sides of the baffle 5352. Specifically, a fluid flow gap is defined between two adjacent baffles 5352, and the flow port 539 connects the fluid flow gap located on both sides of the baffle 5352. This reduces turbulence in the heat exchange medium flowing within the heat exchange cavity 5343, resulting in smoother and more uniform flow of the heat exchange medium, thereby improving heat exchange efficiency.

[0059] Please see Figure 4 and Figure 5 In some embodiments, the heat exchange bracket 53 has a cylindrical portion 5353 that surrounds the wall of the battery cell mounting hole 531. A partition 5352 is sleeved on the cylindrical portion 5353. An overflow port 539 is provided at the edge of the partition 5352 away from the cylindrical portion 5353. This enhances the structural strength of the part where the heat exchange bracket 53 mates with the battery cell 51, thereby improving the stability of the mating between the heat exchange bracket 53 and the battery cell 51.

[0060] Please see Figure 3 and Figure 4In some embodiments, each heat exchange bracket 53 has a protrusion 116 at one end and a recess 117 at the other end. In two adjacent heat exchange brackets 53, the protrusion 116 of one heat exchange bracket 53 is inserted into the recess 117 of the other heat exchange bracket 53 and contacts the inner surface of the recess 117. In this way, the positioning between two adjacent heat exchange brackets 53 can be achieved by the cooperation of the protrusion 116 and the recess 117, which can improve the positional accuracy between the heat exchange brackets 53 and improve the assembly efficiency of the battery 1000.

[0061] Please see Figure 3 and Figure 4 In some embodiments, the recess 117 is a V-groove extending along the axis of the cell mounting hole 531. The two sides of the protrusion 116 contact the two groove walls of the recess 117. This simplifies the structure of the recess 117 and the protrusion 116, and allows for multi-directional positioning through the inclined surfaces between the V-groove and the protrusion 116, thereby improving the fitting accuracy between adjacent heat exchange brackets 53.

[0062] Please see Figure 4 In some embodiments, a liquid inlet plug 5371 is provided on the outer surface of the heat exchange bracket 53. The liquid inlet plug 5371 is connected to the liquid inlet 5341 and is plugged into or expanded to the liquid inlet pipe 71. This improves the ease of operation of the connection between the liquid inlet 5341 and the liquid inlet pipe 71, as well as the reliability of the flow.

[0063] Specifically, the liquid inlet plug 5371 is disposed on the wall of the stepped groove near the bottom wall 5345, and the axis of the liquid inlet plug 5371 is parallel to the axis of the cell mounting hole 531.

[0064] Please see Figure 4 In some embodiments, the outer surface of the heat exchange bracket 53 is provided with a liquid outlet plug 5372, which connects to the liquid outlet 5342 and is plugged into or expanded to the liquid outlet pipe 72. This improves the ease of operation of the connection between the liquid inlet 5341 and the liquid outlet pipe 72, as well as the reliability of the flow between them.

[0065] Specifically, the liquid outlet plug 5372 is disposed on the wall of the stepped groove near the bottom wall 5345, and the axis of the liquid outlet plug 5372 is parallel to the axis of the battery cell mounting hole 531.

[0066] Please see Figure 5In some embodiments, a glue injection groove 538 is provided on the wall of the cell mounting hole 531. One end of the glue injection groove 538 communicates with the opening of the cell mounting hole 531, and the other end extends along the axis of the cell mounting hole 531. In this way, glue (e.g., thermally conductive glue, structural glue) can be filled between the cell 51 and the wall of the cell mounting hole 531 through the glue injection groove 538 to eliminate the gap between the cell 51 and the cell mounting hole 531, thereby increasing the heat exchange area between the cell 51 and the heat exchange bracket 53 and improving the heat exchange efficiency.

[0067] like Figure 7 As shown, the battery cell 51 and the battery cell mounting hole 531 are clearance-fitted. Taking the 46-series large cylindrical battery 1000 system as an example, the diameter of the battery cell 51 is 46mm, and the diameter of the battery cell mounting hole 531 is 48mm. This creates a 1mm gap between the battery cell 51 and the wall of the battery cell mounting hole 531 for filling with adhesive.

[0068] Please see Figure 3 In some embodiments, the thermal management component 700 includes a plurality of management columns 701 arranged in parallel along a first direction. Each management column 701 includes a plurality of heat exchange brackets 53 arranged in parallel along a second direction. The heat exchange brackets 53 arranged along the second direction are in contact with each other. In this way, the battery 1000 contains a plurality of battery cells 51, and the plurality of battery cells 51 are arranged neatly, making them easy to assemble and maintain.

[0069] Please see Figure 8 and Figure 2 In some embodiments, there are multiple liquid inlet pipes 71, each extending along a first direction, and each liquid inlet pipe 71 is connected to at least one liquid inlet 5341 of a management column 701. This makes the liquid inlet pipes 71 arranged in a regular manner, thereby improving the assembly efficiency and maintenance convenience of the battery 1000.

[0070] For example, there are six management columns 701 and three inlet pipes 71. Along the first direction, every two management columns 701 are grouped together, and an inlet pipe 71 is provided between the two management columns 701 in each group, that is, each inlet pipe 71 supplies liquid to two management columns 701.

[0071] Please see Figure 8 and Figure 2 In some embodiments, the thermal management assembly 700 further includes a liquid inlet manifold 73, with one end of each of the plurality of liquid inlet pipes 71 connected to the liquid inlet manifold 73. This simplifies the piping structure at the liquid inlet end of the liquid inlet pipes 71, thereby reducing the volume of the battery 1000 and improving the compactness of the battery 1000 structure.

[0072] Please see Figure 8 and Figure 2In some embodiments, a main inlet port 731 is provided at the middle of the length of the main inlet pipe 73. This can improve the uniformity of the heat exchange medium flow in each inlet pipe 71, thereby improving the consistency of the cells 51 in the battery 1000.

[0073] Please see Figure 8 and Figure 2 In some embodiments, there are multiple outlet pipes 72, each outlet pipe 72 extending along a first direction, and each outlet pipe 72 communicating with at least one outlet port 5342 of a management column 701. This makes the outlet pipes 72 arranged in a regular manner, thereby improving the assembly efficiency and maintenance convenience of the battery 1000.

[0074] For example, there are six management columns 701 and four outlet pipes 72. Each outlet pipe 72 is located on the side of the management column 701 away from the adjacent inlet pipe 71. That is, the outlet pipes 72 at the beginning and end in the first direction drain liquid from one management column 701 respectively, and in the two middle outlet pipes 72, each inlet pipe 71 drains liquid from two management columns 701.

[0075] Please see Figure 8 and Figure 2 In some embodiments, the thermal management assembly 700 further includes a liquid outlet manifold 74, with one end of each of the plurality of liquid outlet pipes 72 connected to the liquid outlet manifold 74. This simplifies the piping structure at the liquid outlet end of the liquid outlet pipes 72, thereby reducing the volume of the battery 1000 and improving the structural compactness of the battery 1000.

[0076] Please see Figure 8 and Figure 2 In some embodiments, a main outlet port 741 is provided at the middle of the length of the main outlet pipe 74. This can improve the uniformity of the heat exchange medium flow in each outlet pipe 72, thereby improving the consistency of the battery cells 51 in the battery 1000.

[0077] Please see Figure 6 and Figure 7 In some embodiments, the heat exchange bracket 53 includes a bracket body 532 and a support plate 533. The cell mounting hole 531, heat exchange chamber 5343, liquid inlet 5341, and liquid outlet 5342 are all located on the bracket body 532. A stepped through hole 5331 is provided on the support plate 533. The large-diameter hole of the stepped through hole 5331 is located close to and communicates with the cell mounting hole 531. This makes the heat exchange bracket 53 a discrete component, thereby reducing the molding difficulty of the heat exchange bracket 53 and improving the economic efficiency of the battery 1000.

[0078] In this embodiment, the end of the battery cell 51 equipped with an explosion-proof valve is inserted into the stepped through hole 5331, and the explosion-proof valve of the battery cell 51 is arranged facing the small diameter hole of the stepped through hole 5331.

[0079] It is understandable that the large diameter hole of the stepped through hole 5331 is consistent with the outer diameter of the battery cell 51, and the small diameter hole of the stepped through hole 5331 is smaller than the outer diameter of the battery cell 51, so that the support plate 533 supports and limits the battery cell 51 in the axial direction of the battery cell 51, and positions the battery cell 51 through the large diameter hole of the stepped through hole 5331.

[0080] Specifically, such as Figure 6 As shown, the inlet 5341 and outlet 5342 are located on the side of the support body 532 away from the tray 533. This provides ample operating space when connecting the inlet 5341 to the inlet pipe 71 and the outlet 5342 to the outlet pipe 72, thereby improving assembly efficiency and ease of maintenance.

[0081] Please see Figure 6 In some embodiments, a thermally conductive structural adhesive 54 is provided between the battery cell 51 and the wall of the corresponding battery cell mounting hole 531. This allows the thermally conductive structural adhesive 54 to eliminate the gap between the battery cell 51 and the battery cell mounting hole 531, thereby increasing the heat exchange area between the battery cell 51 and the heat exchange bracket 53 and improving heat exchange efficiency.

[0082] Please see Figure 1 In some embodiments, the battery 1000 further includes a cover 61 and a housing 62. The cover 61 closes to the housing 62, and the thermal management component 700, the battery cell 51, and the CCS component 100 are all disposed within the housing 62. In this way, the housing 62 and the cover 61 define the space for installing components such as the battery cell 51, thereby protecting these components and improving the reliability of the battery 1000.

[0083] The cover 61 is connected to the box body 62 by flange bolts 63.

[0084] Please see Figure 1 In some embodiments, the battery 1000 further includes a tray 64 disposed within the housing 62. The tray 64 has multiple mounting positions 641 on the side facing the housing cover 61. Multiple heat exchange brackets 53 are each disposed in a mounting position 641. Thus, each heat exchange bracket 53 can be positioned and installed via the tray 64, thereby improving the positional stability of the heat exchange bracket 53 within the housing 62.

[0085] A pressure plate is provided on the side of the CCS module 100 facing away from the cell 51. The pressure plate is connected to the tray 64 by internal bolts, thereby fixing the CCS module 100 and components such as the heat exchange bracket 53 onto the tray 64.

[0086] Please see Figure 1In some embodiments, the battery 1000 further includes a bottom protective plate 65, which is disposed on the side of the housing 62 opposite to the cover 61. Thus, the bottom protective plate 65 can enhance the structural strength of the battery 1000, thereby improving its resistance to external physical impacts. It can also isolate the battery 1000 from harsh environments, protecting its structure and internal cells 51, thereby improving the reliability and lifespan of the battery 1000.

[0087] In summary, the battery 1000 provided in the embodiments of this application can have its components replaced according to the following steps during maintenance: 1. Remove flange bolts 63 and open the box cover 61; 2. Remove the inner bolts and pressure plates of the fixed heat exchange bracket 53 and CCS assembly 100; 3. Remove the connections around the faulty heat exchange bracket 53, or the connections around the heat exchange bracket 53 where the faulty cell 51 is installed, and disconnect the connection between the liquid inlet pipe 71 and the liquid inlet 5341 and the connection between the liquid outlet pipe 72 and the liquid outlet 5342. 4. Remove the faulty heat exchange bracket 53 or the heat exchange bracket 53 with the faulty battery cell 51, disassemble the faulty component and recycle the reusable parts. 5. Install the new heat exchange bracket 53 and the new battery cell 51, connect the liquid outlet pipe 72 to the liquid outlet 5342, connect the liquid inlet pipe 71 to the liquid inlet 5341, and complete the other connections around the new heat exchange bracket 53. Then install the pressure plate, inner bolts, box cover 61 and flange bolts 63 in sequence. VI. Conduct tests such as leakage detection, insulation withstand voltage testing, airtightness testing, voltage consistency testing, and electrical charge testing; As can be seen from the above, in the battery 1000 provided in this embodiment, when replacing the faulty cell 51 or the faulty heat exchange bracket 53 inside the battery 1000, it is not necessary to first damage the normal components around the faulty component. In this way, the battery 1000 is easy to maintain and has low operational risk.

[0088] It is understood that the heat exchange bracket 53 provided in this application is part of both the liquid cooling assembly and the battery module. The heat exchange bracket 53 is detachably installed inside the housing 62 (specifically, the tray 64 and housing 62 are detachably connected by bolts, and the tray 64, pressure plate, and heat exchange bracket 53 are detachably connected by bolts), without the use of adhesive. Therefore, when the heat exchange bracket 53 fails, it can be replaced with a new heat exchange bracket 53, making maintenance more convenient and significantly reducing the probability of battery failure due to malfunctions in heat exchange-related components.

[0089] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0090] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0091] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0092] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A thermal management component (700), characterized in that, include: Multiple heat exchange brackets (53) are arranged in parallel. Each heat exchange bracket (53) is provided with a liquid inlet (5341), a liquid outlet (5342), a heat exchange chamber (5343), and a battery cell mounting hole (531). The liquid inlet (5341) and the liquid outlet (5342) are both connected to the heat exchange chamber (5343). The heat exchange chamber (5343) is isolated from the battery cell mounting hole (531) and shares at least a portion of the wall with the battery cell mounting hole (531). The liquid inlet pipe (71) is connected to the liquid inlet (5341) of the plurality of heat exchange supports (53); and The liquid outlet pipe (72) is connected to the liquid outlet (5342) of the plurality of heat exchange brackets (53).

2. The thermal management component (700) according to claim 1, characterized in that, The heat exchange chamber (5343) has a top wall (5344), and the liquid inlet (5341) and the liquid outlet (5342) are both located on the top wall (5344).

3. The thermal management component (700) according to claim 2, characterized in that, The heat exchange chamber (5343) also has a bottom wall (5345) facing the top wall (5344). A liquid guide pipe (5351) is provided in the heat exchange chamber (5343). One end of the liquid guide pipe (5351) is connected to the liquid inlet (5341), and the other end extends toward the bottom wall (5345).

4. The thermal management component (700) according to claim 3, characterized in that, A stepped groove (536) is provided on the outer surface of the heat exchange bracket (53) on the side of the top wall (5344) away from the bottom wall (5345), and at least one of the liquid inlet (5341) and the liquid outlet (5342) is provided in the stepped groove (536). And / or, the end of the liquid guide tube (5351) away from the liquid inlet (5341) is located closer to the bottom wall (5345) than the liquid outlet (5342), and the distance between the liquid outlet (5342) and the bottom wall (5345) is not greater than the distance between the liquid inlet (5341) and the bottom wall (5345).

5. The thermal management component (700) according to claim 1, characterized in that, Multiple partitions (5352) are provided in the heat exchange chamber (5343), and the multiple partitions (5352) are arranged sequentially at intervals along the axis of the battery cell mounting hole (531); an overflow port (539) is provided on the partition (5352), and the overflow port (539) connects the spaces located on both sides of the partition (5352).

6. The thermal management component (700) according to claim 5, characterized in that, The heat exchange bracket (53) has a cylindrical portion (5353) that surrounds the wall of the battery cell mounting hole (531), the partition plate (5352) is sleeved on the cylindrical portion (5353), and the flow port (539) is provided on the edge of the partition plate (5352) away from the cylindrical portion (5353).

7. The thermal management assembly (700) according to any one of claims 1 to 6, characterized in that, Each heat exchange bracket (53) has a protrusion (116) at one end and a recess (117) at the other end. In two adjacent heat exchange brackets (53), the protrusion (116) of one heat exchange bracket (53) is inserted into the recess (117) of the other heat exchange bracket (53) and contacts the inner surface of the recess (117).

8. The thermal management assembly (700) according to claim 7, characterized in that, The recess (117) is a V-shaped groove, and the recess (117) extends along the axis of the battery cell mounting hole (531). The two sides of the protrusion (116) are in contact with the two groove walls of the recess (117).

9. The thermal management assembly (700) according to any one of claims 1 to 6, characterized in that, A liquid inlet plug (5371) is provided on the outer surface of the heat exchange bracket (53). The liquid inlet plug (5371) is connected to the liquid inlet (5341) and is plugged or expanded to the liquid inlet pipe (71). And / or, the outer surface of the heat exchange bracket (53) is provided with a liquid outlet plug (5372), the liquid outlet plug (5372) is connected to the liquid outlet (5342), and is plugged or expanded to the liquid outlet pipe (72).

10. The thermal management assembly (700) according to any one of claims 1 to 6, characterized in that, A glue injection groove (538) is provided on the wall of the cell mounting hole (531). One end of the glue injection groove (538) is connected to the opening of the cell mounting hole (531), and the other end extends along the axis of the cell mounting hole (531).

11. The thermal management assembly (700) according to any one of claims 1 to 6, characterized in that, The thermal management component (700) includes a plurality of management columns (701) arranged in parallel along a first direction, and each management column (701) includes a plurality of heat exchange brackets (53) arranged in parallel along a second direction; Among them, the heat exchange brackets (53) arranged along the second direction are in contact in sequence.

12. The thermal management assembly (700) according to claim 11, characterized in that, There are multiple inlet pipes (71), each inlet pipe (71) extends along the first direction, and each inlet pipe (71) is connected to at least one inlet port (5341) of the management column (701).

13. The thermal management assembly (700) according to claim 12, characterized in that, The thermal management component (700) also includes a liquid inlet manifold (73), one end of each of the plurality of liquid inlet pipes (71) being connected to the liquid inlet manifold (73).

14. The thermal management assembly (700) according to claim 13, characterized in that, A liquid inlet port (731) is provided at the middle of the length direction of the liquid inlet manifold (73).

15. The thermal management assembly (700) according to claim 11, characterized in that, There are multiple outlet pipes (72), each outlet pipe (72) extends along the first direction, and each outlet pipe (72) is connected to at least one outlet (5342) of the management column (701).

16. The thermal management assembly (700) according to claim 15, characterized in that, The thermal management component (700) also includes a liquid outlet manifold (74), one end of each of the plurality of liquid outlet pipes (72) being connected to the liquid outlet manifold (74).

17. The thermal management assembly (700) according to claim 16, characterized in that, A main outlet port (741) is provided at the middle of the length direction of the main outlet pipe (74).

18. The thermal management assembly (700) according to any one of claims 1 to 6, characterized in that, The heat exchange bracket (53) includes a bracket body (532) and a support plate (533). The battery cell mounting hole (531), the heat exchange chamber (5343), the liquid inlet (5341) and the liquid outlet (5342) are all located on the bracket body (532). A stepped through hole (5331) is provided on the support plate (533). The large diameter hole of the stepped through hole (5331) is located close to the battery cell mounting hole (531) and communicates with the battery cell mounting hole (531).

19. A battery (1000), characterized in that, include: The thermal management assembly (700) according to any one of claims 1 to 18; Multiple battery cells (51) are respectively disposed in a battery cell mounting hole (531); as well as The CCS assembly (100) connects the electrodes of the plurality of cells (51).

20. The battery (1000) according to claim 19, characterized in that, Thermally conductive structural adhesive (54) is provided between the battery cell (51) and the wall of the corresponding battery cell mounting hole (531).

21. The battery (1000) according to claim 19, characterized in that, The battery (1000) also includes a cover (61) and a housing (62), the cover (61) and the housing (62) being closed together, and the thermal management component (700), the battery cell (51) and the CCS component (100) being disposed inside the housing (62).

22. The battery (1000) according to claim 21, characterized in that, The battery (1000) also includes a tray (64), which is disposed in the housing (62), and the tray (64) has a plurality of mounting positions (641) on the side facing the housing cover (61), and the plurality of heat exchange brackets (53) are respectively disposed in one of the mounting positions (641); And / or, the battery (1000) further includes a bottom protective plate (65) disposed on the side of the housing (62) opposite to the housing cover (61).

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