Energy storage liquid cooling plate box structure and battery module

Abstract

The utility model relates to an energy storage liquid cooling plate box body structure and a battery module, the energy storage liquid cooling plate box body structure comprises a liquid cooling frame, a liquid cooling plate and an upper cover, and the liquid cooling frame is provided with a plurality of drill holes; the liquid cooling plate is installed on the upper side of the liquid cooling frame, a plurality of connecting holes are formed in the liquid cooling plate, the connecting holes correspond to the drill holes, and rivet nuts are fixed to the drill holes and the connecting holes in a penetrating mode; and the upper cover and the rivet nut can be in threaded connection through a fastener. The utility model has the beneficial effects that the cost can be reduced, and the production process can be simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage batteries, and in particular to an energy storage liquid cooling plate box structure and a battery module. Background Art

[0002] The world's energy landscape is changing, and the explosive development of the large energy storage market is coming. The market is driving the upstream and downstream industries to continuously reduce costs. The liquid cooling plate box, as a key component of the battery pack structure, occupies most of the structure, with high cost and complex manufacturing process.

[0003] Extruded aluminum box structures are mostly used in the existing technology. The aluminum profiles of this structure are welded into a frame by brazing. The frame and the liquid cooling plate need to be sealed with glue and then fixed with reverse FDS nails. The reinforced beams also need to be fixed with FDS nails. The manufacturing process is relatively complicated and requires FDS nails and automatic gluing equipment. There are many consumables, and the automatic gluing equipment is also a bottleneck technology. Utility Model Content

[0004] The purpose of the utility model is to provide an energy storage liquid cooling plate box structure and a battery module which can reduce costs and simplify production processes.

[0005] An energy storage liquid cooling plate box structure includes a liquid cooling frame, a liquid cooling plate and an upper cover.

[0006] The liquid cooling frame is provided with a plurality of drilling holes;

[0007] The liquid cooling plate is installed on the upper side of the liquid cooling frame, and a plurality of connection holes are opened on the liquid cooling plate, the connection holes correspond to the drill holes, and rivet nuts are passed through and fixed to the drill holes and the connection holes;

[0008] The upper cover and the rivet nut can be threadedly connected via a fastener.

[0009] In the above scheme, the liquid cooling plate is installed above the frame, and the upper cover is connected to the liquid cooling frame, so that the liquid cooling plate and the upper cover form a sealed cavity. The liquid cooling frame does not serve as a sealing structure, so there is no need to seal it with the liquid cooling plate, which saves costs. The rivet nuts are riveted to the frame, so that the connection between the liquid cooling plate and the liquid cooling frame is achieved. At the same time, it can also serve as a locking structure for the upper cover. Screws and other fasteners are passed through the upper cover and locked on the rivet nuts, thereby simplifying the manufacturing process and greatly improving production efficiency.

[0010] Furthermore, a step structure is provided around the upper cover, and a plurality of through holes opposite to the rivet nut are provided on the step structure, and the fastener can pass through the through holes to be threadedly connected with the rivet nut.

[0011] In the above solution, the step structure facilitates the alignment and connection of the upper cover with the liquid cooling plate and the liquid cooling frame. The through holes on the steps pass through fasteners such as screws and are connected to rivet nuts. This design simplifies the installation process of the upper cover. If the liquid cooling plate needs to be maintained or replaced, this design makes it easier to remove the upper cover because the fasteners can be quickly removed without destroying the sealant or other fixing methods.

[0012] Furthermore, the liquid cooling frame includes a first connecting plate, a second connecting plate, a third connecting plate and a fourth connecting plate which are sequentially connected end to end.

[0013] In the above scheme, a Huixing liquid cooling frame is formed by the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate which are connected end to end in sequence. The liquid cooling frame is modularly designed, which is convenient for processing and assembly, simplifies the manufacturing process, helps to reduce production costs and improve production efficiency.

[0014] Furthermore, the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate are all made of steel plates.

[0015] In the above scheme, the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate are all made of steel plate materials, and the connection of the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate can be achieved by rolling steel plate welding, which helps to reduce the production cost of the entire liquid cooling frame. Moreover, the steel plate material is a high-strength and wear-resistant material, which can ensure the durability and stability of the liquid cooling frame.

[0016] Furthermore, a plurality of reinforcing beams are installed on the liquid cooling frame, and two ends of the plurality of reinforcing beams are respectively connected to the second connecting plate and the fourth connecting plate.

[0017] In the above scheme, the reinforced beams can significantly improve the overall rigidity of the liquid cooling frame, so that the liquid cooling frame can resist external loads and internal pressure and reduce deformation. The reinforced beams are used to support the liquid cooling plate and other components, thereby improving the carrying capacity of the liquid cooling frame. Several reinforced beams are arranged at intervals, which will not affect the heat dissipation on the liquid cooling plate.

[0018] Furthermore, a plurality of limiting grooves are provided on the inner side walls of the second connecting plate and the fourth connecting plate, and the reinforcing cross beam is inserted and limited in the limiting grooves.

[0019] In the above scheme, the limit groove provides a precise installation position for the reinforcing beam, ensuring the correct alignment of the reinforcing beam in the frame, thereby improving the stability and reliability of the overall structure; through the design of the limit groove, the reinforcing beam can be more easily inserted and positioned, reducing the adjustment work during installation and simplifying the assembly process.

[0020] Furthermore, the reinforcing crossbeam is provided with at least one reinforcing groove extending along the length direction of the reinforcing crossbeam.

[0021] In the above scheme, the reinforcement groove can reduce the material usage of the reinforcement beam, thereby reducing the weight of the entire reinforcement beam, which helps to reduce the load of the entire liquid cooling frame. At the same time, the reinforcement groove can serve as a structural reinforcement rib to improve the rigidity and bending strength of the beam, making it more able to withstand pressure and torque, thereby maintaining the stability of the structure.

[0022] Furthermore, the rivet nut includes a head and a rivet part, the rivet part passes through the liquid cooling plate and the liquid cooling frame, the head is overlapped on the liquid cooling plate, and an internal thread is provided in the rivet nut.

[0023] In the above scheme, the rivet part of the rivet nut passes through the liquid cooling plate and the liquid cooling frame, and the head overlaps the liquid cooling plate. This design can ensure a firm connection between the liquid cooling plate and the liquid cooling frame. The use of the rivet nut simplifies the installation process of the liquid cooling plate and the liquid cooling frame. The rivet nut is provided with an internal thread, which allows the use of fasteners such as bolts or screws to be threadedly connected thereto, providing a reliable locking structure for the upper cover.

[0024] A battery module comprises an energy storage liquid cooling plate box structure as described in any one of the above schemes.

[0025] In the above scheme, due to the simplified connection method of the upper cover, the liquid cooling plate and the liquid cooling frame, and the use of rivet nuts, the maintenance and replacement of the battery module becomes easier, reducing the maintenance cost. In addition, the use of cost-effective components such as steel plate materials and rivet nuts also reduces the production cost of the battery module.

[0026] Furthermore, it also includes a battery cell assembly, and two mounting beams are provided on the liquid cooling plate, and two ends of the battery cell assembly are abutted and connected to the mounting beams.

[0027] In the above solution, the installation beam provides a stable support point for the battery cell assembly, ensures the stability of the battery cell in the battery module, and reduces displacement caused by vibration or impact.

[0028] The utility model has the beneficial effect of reducing costs and simplifying the production process in a box structure of an energy storage liquid cooling plate and a battery module. The liquid cooling plate is installed above the frame, and the upper cover is connected to the liquid cooling frame, so that the liquid cooling plate and the upper cover form a sealed cavity. The liquid cooling frame does not serve as a sealing structure, so there is no need to seal it with the liquid cooling plate, which saves costs. The rivet nut is riveted to the frame, so that the connection between the liquid cooling plate and the liquid cooling frame is achieved. At the same time, it can also serve as a locking structure for the upper cover, and screws and other fasteners are passed through the upper cover and locked on the rivet nut, thereby simplifying the manufacturing process and greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 An exploded view of a liquid cooling plate, a liquid cooling frame and a rivet nut according to an embodiment of the present invention

[0030] Figure 2 It is an overall schematic diagram of the energy storage liquid cooling plate box structure of one embodiment.

[0031] Figure 3 for Figure 2 A partial enlarged view of the .

[0032] Figure 4 Schematic diagram of a liquid cooling frame structure according to an embodiment.

[0033] Figure 5 The figure is a schematic diagram of the structure of a rivet nut according to an embodiment.

[0034] Explanation of the accompanying drawings: 1. Drilling hole; 2. Liquid cooling frame; 21. First connecting plate; 22. Second connecting plate; 23. Third connecting plate; 24. Fourth connecting plate; 3. Liquid cooling plate; 4. Connecting hole; 5. Rivet nut; 51. Head; 52. Rivet part; 6. Upper cover; 61. Step structure; 7. Fastener; 8. Through hole; 9. Reinforcement beam; 10. Limiting groove; 11. Reinforcement groove; 12. Mounting beam; 13. Sealing ring. DETAILED DESCRIPTION

[0035] The energy storage liquid cooling plate box structure and the battery module of the utility model will be further described in detail below in conjunction with specific embodiments and drawings.

[0036] like Figure 1 and Figure 2 As shown, in a preferred embodiment, an energy storage liquid cooling plate box structure of the utility model includes an upper cover 6, a liquid cooling frame 2 and a liquid cooling plate 3. The liquid cooling frame 2 is provided with a plurality of drill holes 1. The liquid cooling plate 3 is installed on the upper side of the liquid cooling frame 2. The liquid cooling plate 3 is provided with a plurality of connection holes 4. The connection holes 4 correspond to the drill holes 1. The drill holes 1 and the connection holes 4 are penetrated and fixed with rivet nuts 5. The liquid cooling plate 3 is installed on the top of the frame, and the upper cover 6 is connected to the liquid cooling frame 2. In this way, the liquid cooling plate 3 and the upper cover 6 form a sealed cavity. The liquid cooling frame 2 does not serve as a sealing structure, so there is no need to seal with the liquid cooling plate 3 with glue, which saves costs. The rivet nuts 5 are riveted to the frame, so that the connection between the liquid cooling plate 3 and the liquid cooling frame 2 is achieved.

[0037] The upper cover 6 and the rivet nut 5 can be threadedly connected by fasteners 7. The rivet nut 5 can be used as a locking structure of the upper cover 6. Specifically, the rivet nut 5 is passed through the connection hole 4 of the liquid cooling plate 3 and the drill hole 1 of the liquid cooling frame 2, and the rivet nut 5 is riveted and fixed on the liquid cooling frame 2 by a rivet tool. Then, the upper cover 6 is placed on the liquid cooling plate 3. Fasteners 7 such as screws are passed through the upper cover 6 and locked on the rivet nut 5 to achieve the connection between the upper cover 6, the liquid cooling plate 3 and the liquid cooling frame 2, thereby simplifying the manufacturing process, without the need for FDS nails and automatic gluing equipment, and greatly improving the production efficiency, which is not subject to the technical bottlenecks of FDS nails and automatic gluing equipment.

[0038] like Figure 2 and Figure 3 As shown, in some embodiments, a step structure 61 is provided around the upper cover 6, and a plurality of through holes 8 are provided on the step structure 61, which are opposite to the rivet nuts 5, and the fasteners 7 can pass through the through holes 8 and be threadedly connected with the rivet nuts 5. The step structure 61 facilitates the alignment and connection of the upper cover 6 with the liquid cooling plate 3 and the liquid cooling frame 2, and the through holes 8 on the steps pass through fasteners 7 such as screws and are connected to the rivet nuts 5. Such a design simplifies the installation process of the upper cover 6. If the liquid cooling plate 3 needs to be maintained or replaced, such a design makes it easier to disassemble the upper cover 6, because the fasteners 7 can be quickly disassembled without destroying the sealant or other fixing methods.

[0039] In the above embodiment, a sealing ring 13 is further provided between the step structure 61 of the upper cover 6 and the liquid cooling frame 2 , and the sealing ring 13 can ensure the sealing of the entire box.

[0040] like Figure 1 As shown, in some embodiments, the liquid cooling frame 2 includes a first connecting plate 21, a second connecting plate 22, a third connecting plate 23 and a fourth connecting plate 24 connected end to end in sequence. A liquid cooling frame 2 is formed by connecting the first connecting plate 21, the second connecting plate 22, the third connecting plate 23 and the fourth connecting plate 24 end to end in sequence. The liquid cooling frame 2 is modularly designed, which is convenient for processing and assembly, simplifies the manufacturing process, helps to reduce production costs and improve production efficiency.

[0041] like Figure 1 As shown, in some embodiments, the first connecting plate 21, the second connecting plate 22, the third connecting plate 23 and the fourth connecting plate 24 are all made of steel plate materials. The first connecting plate 21, the second connecting plate 22, the third connecting plate 23 and the fourth connecting plate 24 are all made of steel plate materials, and the connection of the first connecting plate 21, the second connecting plate 22, the third connecting plate 23 and the fourth connecting plate 24 can be achieved by rolling steel plate welding, which helps to reduce the production cost of the entire liquid cooling frame 2, and the steel plate material is a high-strength, wear-resistant material, which can ensure the durability and stability of the liquid cooling frame 2.

[0042] In the above embodiment, in order to meet the structural strength requirements of the existing extruded aluminum box structure, the aluminum material is relatively soft, so the frame aluminum material must be designed to be higher in height, the material is large, and the cost is high. Compared with aluminum, the cost of using steel plate material is lower.

[0043] The specific method of welding the rolled steel plates is to first prepare the first connecting plate 21, the second connecting plate 22, the third connecting plate 23 and the fourth connecting plate 24, and place them together in the required connection manner. They usually need to be clamped to ensure the stability of their positions, and use rollers to apply pressure and heat to the areas that need to be welded. Under the action of heating and pressing, the auxiliary materials will partially melt and form a weld joint. After the weld joint is formed, the first connecting plate 21 and other workpieces will gradually cool and solidify.

[0044] like Figure 1 and Figure 4 As shown, in some embodiments, a plurality of reinforcing beams 9 are installed on the liquid cooling frame 2, and the two ends of the plurality of reinforcing beams 9 are respectively connected to the second connecting plate 22 and the fourth connecting plate 24. The reinforcing beams 9 can significantly improve the overall rigidity of the liquid cooling frame 2, so that the liquid cooling frame 2 can resist external loads and internal pressures, and reduce deformation. The reinforcing beams 9 are used to support the liquid cooling plate 3 and other components, thereby improving the bearing capacity of the liquid cooling frame 2. The plurality of reinforcing beams 9 are arranged at intervals, and the heat dissipation on the liquid cooling plate 3 will not be affected.

[0045] like Figure 1 and Figure 4 As shown, in some embodiments, a plurality of limiting grooves 10 are provided on the inner side walls of the second connecting plate 22 and the fourth connecting plate 24, and the reinforcing crossbeam 9 is inserted and limited in the limiting grooves 10. The limiting grooves 10 provide a precise installation position for the reinforcing crossbeam 9, ensuring the correct alignment of the reinforcing crossbeam 9 in the frame, thereby improving the stability and reliability of the overall structure; through the design of the limiting grooves 10, the reinforcing crossbeam 9 can be more easily inserted and positioned, reducing the adjustment work during installation and simplifying the assembly process.

[0046] like Figure 4 As shown, in some embodiments, at least one reinforcement groove 11 extending along the length direction of the reinforcement beam 9 is provided on the reinforcement beam 9. The reinforcement groove 11 can reduce the material usage of the reinforcement beam 9, thereby reducing the weight of the entire reinforcement beam 9, which helps to reduce the load of the entire liquid cooling frame 2. At the same time, the reinforcement groove 11 can serve as a structural reinforcement rib to improve the rigidity and bending strength of the beam, so that it can better withstand pressure and torque, thereby maintaining the stability of the structure.

[0047] like Figure 1 and Figure 5As shown, in some embodiments, the rivet nut 5 includes a head 51 and a rivet portion 52, the rivet portion 52 passes through the liquid cooling plate 3 and the liquid cooling frame 2, the head 51 overlaps the liquid cooling plate 3, and an internal thread is provided in the rivet nut 5. The rivet portion 52 of the rivet nut 5 passes through the liquid cooling plate 3 and the liquid cooling frame 2, and the head 51 overlaps the liquid cooling plate 3. This design can ensure a firm connection between the liquid cooling plate 3 and the liquid cooling frame 2. The use of the rivet nut 5 simplifies the installation process of the liquid cooling plate 3 and the liquid cooling frame 2. The rivet nut 5 is provided with an internal thread, which allows the use of fasteners 7 such as bolts or screws to be threadedly connected thereto, providing a reliable locking structure for the upper cover 6.

[0048] like Figure 2 As shown, in a preferred embodiment, a battery module includes an energy storage liquid cooling plate box structure as in any one of the above embodiments. Due to the simplified connection method of the upper cover 6, the liquid cooling plate 3 and the liquid cooling frame 2, and the use of the rivet nut 5, the maintenance and replacement of the battery module becomes easier, reducing the maintenance cost, and the use of cost-effective components such as steel plate materials and rivet nuts 5 also reduces the production cost of the battery module.

[0049] like Figure 1 As shown, in some embodiments, a battery cell assembly is also included, and two mounting beams 12 are provided on the liquid cooling plate 3, and both ends of the battery cell assembly are abutted and connected with the mounting beams 12. The mounting beams 12 provide a stable support point for the battery cell assembly, ensure the stability of the battery cell in the battery module, and reduce displacement caused by vibration or impact.

[0050] The utility model discloses an energy storage liquid cooling plate box structure and a battery module working principle and process. The liquid cooling plate 3 is aligned with the liquid cooling frame 2, that is, the drilling hole 1 and the connecting hole 4 are opposite, and then the rivet nut 5 is passed through the connecting hole 4 of the liquid cooling plate 3 and the drilling hole 1 of the liquid cooling frame 2, and the rivet nut 5 is riveted and fixed on the liquid cooling frame 2 by a rivet tool, so as to realize the connection between the liquid cooling plate 3 and the liquid cooling frame 2, and the upper cover 6 is set on the liquid cooling plate 3, and the through hole 8 on the upper cover 6 is aligned with the rivet nut 5, and the fastener 7 such as a screw is passed through the through hole 8 and is threadedly connected with the rivet nut 5, thereby completing the installation of the upper cover 6.

[0051] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. An energy storage liquid cooling plate box structure, characterized in that: It comprises a liquid cooling frame (2), a liquid cooling plate (3) and an upper cover (6), The liquid cooling frame (2) is provided with a plurality of drill holes (1); The liquid cooling plate (3) is mounted on the upper side of the liquid cooling frame (2), and a plurality of connection holes (4) are formed on the liquid cooling plate (3), wherein the connection holes (4) correspond to the drill holes (1), and rivet nuts (5) are passed through and fixed to the drill holes (1) and the connection holes (4); The upper cover (6) and the rivet nut (5) may be threadedly connected via a fastener (7).

2. The energy storage liquid cooling plate box structure according to claim 1 is characterized in that: The upper cover (6) is provided with a step structure (61) around its periphery, and the step structure (61) is provided with a plurality of through holes (8) opposite to the rivet nuts (5), and the fasteners (7) can pass through the through holes (8) to be threadedly connected to the rivet nuts (5).

3. The energy storage liquid cooling plate box structure according to claim 1 is characterized in that: The liquid cooling frame (2) comprises a first connecting plate (21), a second connecting plate (22), a third connecting plate (23) and a fourth connecting plate (24) which are sequentially connected end to end.

4. The energy storage liquid cooling plate box structure according to claim 3 is characterized in that: The first connecting plate (21), the second connecting plate (22), the third connecting plate (23) and the fourth connecting plate (24) are all made of steel plate materials.

5. The energy storage liquid cooling plate box structure according to claim 4 is characterized in that: A plurality of reinforcing cross beams (9) are installed on the liquid cooling frame (2), and two ends of the plurality of reinforcing cross beams (9) are respectively connected to the second connecting plate (22) and the fourth connecting plate (24).

6. The energy storage liquid cooling plate box structure according to claim 5, characterized in that: A plurality of limiting grooves (10) are provided on the inner side walls of the second connecting plate (22) and the fourth connecting plate (24), and the reinforcing cross beam (9) is inserted and limited in the limiting grooves (10).

7. The energy storage liquid cooling plate box structure according to claim 5, characterized in that: The reinforcing crossbeam (9) is provided with at least one reinforcing groove (11) extending along the length direction of the reinforcing crossbeam (9).

8. The energy storage liquid cooling plate box structure according to claim 1, characterized in that: The rivet nut (5) comprises a head (51) and a rivet portion (52), the rivet portion (52) passes through the liquid cooling plate (3) and the liquid cooling frame (2), the head (51) overlaps the liquid cooling plate (3), and an internal thread is provided in the rivet nut (5).

9. A battery module, characterized in that: It comprises the energy storage liquid cooling plate box structure as described in any one of claims 1 to 8.

10. The battery module according to claim 9, characterized in that: It also comprises a battery cell assembly, wherein two mounting crossbeams (12) are provided on the liquid cooling plate, and two ends of the battery cell assembly are abuttingly connected to the mounting crossbeams (12).

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