Insulating battery module middle plate assembly

Abstract

The utility model discloses a middle plate assembly of an insulating battery module, which belongs to the technical field of battery modules and comprises two middle plate bodies, the two middle plate bodies are used for separating batteries in the insulating battery module, a supporting groove is formed in the top surface of each middle plate body, and a top plate is mounted on the top surface of each middle plate body. A plurality of containing grooves used for containing batteries are formed in the two sides of each middle plate body, a worker places the two middle plate bodies together through the arranged middle plate bodies, and the middle plate bodies, the connecting blocks, the connecting grooves, the movable plates, the supporting rods, the springs, the supporting rods, the limiting grooves, the clamping blocks and the clamping grooves are arranged to be matched with one another; according to the middle plate, the connecting blocks can be limited in the connecting grooves, then the two middle plate bodies are spliced together, at the moment, the two middle plate bodies form a whole to jointly support the insulating battery module, and workers can conveniently use the middle plate bodies in the insulating battery module.

Description

Technical Field

[0001] The utility model relates to the field of battery modules, in particular to an insulating battery module mid-plate assembly. Background Art

[0002] A battery module is a collection of multiple single cells (such as lithium-ion batteries and nickel-metal hydride batteries), connected in series, parallel, or both to provide the required voltage, current, and capacity. Battery modules are widely used in electric vehicles, energy storage systems, mobile devices, and other fields. An insulated battery module is a type of battery module that uses special insulating materials or structures inside or outside to prevent abnormal current flow under specific conditions (such as short circuits, overcharge, and over-discharge), thereby improving the module's safety and reliability.

[0003] After extensive searching, it was discovered that the Chinese patent with the prior art publication number CN218731392U discloses a battery module and battery pack. This patent uses an intermediate connector to fix the battery pack's upper cover and tray, enhancing the overall rigidity of the battery pack without adding an additional installation interface. This avoids the risk of structural failure such as weld cracking due to insufficient rigidity during the use of the battery module, effectively improving the service life of the battery pack. However, in this solution, since the two middle plates independently support the upper cover of the battery module, when the battery module is squeezed, the two middle plates may move relative to each other due to their independence, resulting in poor support for the battery module and affecting the use of the middle plate by the staff. Therefore, based on the above search and in combination with the prior art, the utility model provides an insulated battery module middle plate assembly to solve the above problem. Utility Model Content

[0004] Based on this, it is necessary to provide an insulating battery module middle plate assembly that can solve the problem that since the two middle plates independently support the upper cover of the battery module, when the battery module is squeezed, the two middle plates may move relative to each other due to their independence, resulting in poor support effect on the battery module, affecting the staff's use of the middle plates.

[0005] According to one aspect of the present application, an insulating battery module midplate assembly is provided, comprising two midplate bodies, the two midplate bodies being used to separate batteries in an insulating battery module, a support groove being provided on the top surface of the midplate body, a top plate being installed on the top surface of the midplate body, a plurality of accommodating grooves for accommodating batteries being provided on both sides of the midplate body, a splicing mechanism for splicing the two midplate bodies being provided on one side of the midplate body, and a cooling mechanism for dissipating heat from the midplate body being provided inside the support groove.

[0006] In one embodiment, the splicing mechanism includes two connecting grooves, both of which are opened on one side of the middle plate body on the left side, and two connecting blocks are fixedly installed on one side of the middle plate body on the right side, the interior of the connecting groove is slidingly connected to two movable plates, the connecting blocks are movably engaged with the two movable plates, and two support rods for guiding the movement of the movable plates are fixedly installed inside the connecting groove, the movable plate is elastically connected to the support rod, and two springs are movably sleeved on the outer circular wall of the support rod, one end of the spring is fixedly connected to the top and bottom surfaces of the movable plate, and the other end of the spring is fixedly connected to the inner top and bottom surfaces of the connecting groove.

[0007] In one embodiment, the cooling mechanism includes a heat pipe, which is fixedly installed inside the support groove. A support box for storing coolant is installed inside the support groove. One end of the heat pipe is connected to the support box through a connecting pipe. A return pipe is fixedly installed on the other end of the heat pipe, and the return pipe is connected to the support box. Cooling rods for reducing the temperature of the coolant are fixedly installed on both sides of the support box.

[0008] In one embodiment, a plurality of reinforcement blocks are fixedly installed on both sides of the interior of the support groove, a connecting beam is fixedly installed on one side of the reinforcement block, one side of the connecting beam is fixedly connected to one side of the interior of the support groove, and the reinforcement block and the connecting beam form a T shape.

[0009] In one embodiment, support plates are fixedly installed on both sides of the middle plate body, two support holes are provided on the top surface of the support plate, and two reinforcing ribs for reinforcing the support plate are installed between the support plate and the middle plate body.

[0010] In one embodiment, two fixing brackets are fixedly mounted on the top surface of the top plate, and two fixing holes are provided on the top surface of the fixing brackets.

[0011] The above-mentioned insulating battery module middle plate assembly, through the set middle plate body, the staff places the two middle plate bodies together, and through the set middle plate body, connecting block, connecting groove, movable plate, support rod, spring, support rod, limit groove, clamping block and clamping groove cooperate with each other, the connecting block can be restricted to the inside of the connecting groove, and then the two middle plate bodies are spliced ​​together. At this time, the two middle plate bodies form a whole, and jointly support the insulating battery module to prevent the two middle plate bodies from shaking relative to each other due to the separation of the two middle plate bodies, so that the two middle plate bodies can better support the insulating battery module, which is convenient for the staff to use the middle plate body in the insulating battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the support plate structure of the present utility model;

[0014] Figure 3 This is a schematic diagram of the top plate structure of the present utility model;

[0015] Figure 4 for Figure 3 Schematic diagram of the local structure of A;

[0016] Figure 5 This is a schematic diagram of the heat pipe structure of the utility model;

[0017] Figure 6 for Figure 5 Schematic diagram of the local structure of B.

[0018] Explanation of the accompanying drawings: 1. Middle plate body; 2. Support groove; 3. Accommodating groove; 4. Top plate; 5. Fixing frame; 6. Fixing hole; 7. Splicing mechanism; 8. Cooling mechanism; 9. Cooling rod; 10. Threaded groove; 11. Support plate; 12. Mounting hole; 13. Support beam; 14. Support hole; 15. Threaded column; 16. Support box; 17. Heat pipe; 18. Connecting groove; 19. Limiting groove; 20. Movable plate; 21. Support rod; 22. Spring; 23. Connecting block; 24. Clamping block; 25. Circulation pump; 26. Connecting pipe; 27. Return pipe; 28. Reinforcement block; 29. ​​Connecting beam; 30. Clamping groove. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below. In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or part referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0020] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0021] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; mechanical connections, or communication connections; direct connections, or indirect connections through an intermediary; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0022] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0023] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. If an element is considered to be "connected to" another element, it may be directly connected to the other component or there may be a central component. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0024] The present application provides an insulating battery module middle plate assembly, which is used to splice two middle plates so that the two middle plates form a whole, better support the insulating battery module, and reduce the temperature of the middle plate inside the insulating battery module, preventing the middle plate from expanding due to the heat generated by the batteries inside the insulating battery module, thereby avoiding damage to the insulating battery module by the expanded middle plate.

[0025] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , an insulating battery module middle plate assembly, including two middle plate bodies 1, the two middle plate bodies 1 are used to separate the batteries in the insulating battery module, the top surface of the middle plate body 1 is provided with a support groove 2, the top surface of the middle plate body 1 is installed with a top plate 4, the top surface of the top plate 4 is provided with a plurality of threaded columns 15, the top surface of the middle plate body 1 is provided with a plurality of threaded grooves 10, one end of the threaded column 15 passes through the top plate 4 and is threadedly connected to the inner circular wall surface of the threaded groove 10, both sides of the middle plate body 1 are provided with a plurality of accommodating grooves 3 for accommodating batteries, a splicing mechanism 7 for splicing the two middle plate bodies 1 is provided on one side of the middle plate body 1, and a cooling mechanism 8 for dissipating heat to the middle plate body 1 is provided inside the support groove 2;

[0026] The splicing mechanism 7 includes two connecting grooves 18, and the two connecting grooves 18 are both opened on one side of the middle plate body 1 on the left side. Two connecting blocks 23 are fixedly installed on one side of the middle plate body 1 on the right side. The interior of the connecting groove 18 is slidably connected to two movable plates 20, and the connecting blocks 23 are movably engaged with the two movable plates 20. The top and bottom surfaces of the connecting blocks 23 are fixedly installed with engaging blocks 24. The two sides of the two movable plates 20 close to each other are provided with engaging grooves 30, and the engaging blocks 24 are movably engaged with the engaging grooves 30. Limiting grooves 19 are opened on both sides of the interior of the connecting groove 18, and the movable plate 20 is slidably connected to the limiting grooves 19. The limiting grooves 19 can limit the movable plate 20 to prevent the movable plate 20 from moving out of the interior of the connecting groove 18 The movable plates 20 are disengaged from each other, and the two sides of the two movable plates 20 that are close to each other are inclined inwardly, and the two sides of the connecting block 23 are inclined inwardly. The inclined sides of the connecting block 23 cooperate with the inclined sides of the movable plates 20, so that the movable plates 20 can move outward along the support rod 21 under the extrusion of the connecting block 23. Two support rods 21 for guiding the movement of the movable plates 20 are fixedly installed inside the connecting groove 18. The support rod 21 can limit the movement of the movable plates 20. The movable plates 20 are elastically connected to the support rod 21. Two springs 22 are movably sleeved on the outer circular wall surface of the support rod 21. One end of the spring 22 is fixedly connected to the top and bottom surfaces of the movable plate 20, and the other end of the spring 22 is fixedly connected to the inner top and bottom surfaces of the connecting groove 18.

[0027] Specifically, through the set middle plate body 1, the staff puts the two middle plate bodies 1 together so that the two connecting blocks 23 on the right middle plate body 1 squeeze the two movable plates 20 in the connecting groove 18 on the left middle plate body 1. The two movable plates 20 are squeezed by the connecting blocks 23 and move outward along the two support rods 21 inside the connecting groove 18. At the same time, the spring 22 is compressed. The movable plate 20 moves outward along the support rod 21 and moves inside the limiting groove 19 inside the connecting groove 18. The limiting groove 19 and the support rod 21 can limit the movement of the movable plate 20. As the connecting block 23 squeezes, the two movable plates 20 continue to move outward along the support rod 21 until they are on the connecting block 23. When the clamping block 24 contacts the clamping groove 30 on the movable plate 20, the force of the spring 22 causes the movable plate 20 to move inward along the support rod 21. The two movable plates 20 move inward so that the clamping block 24 enters the inside of the clamping groove 30 on the movable plate 20, thereby restricting the connecting block 23 to the inside of the connecting groove 18, and then splicing the two middle plate bodies 1 together. At this time, the two middle plate bodies 1 form a whole, and jointly support the insulated battery module to prevent the two middle plate bodies 1 from shaking relative to each other due to the separation of the two middle plate bodies 1, so that the two middle plate bodies 1 can better support the insulated battery module, making it easier for staff to use the middle plate body 1 in the insulated battery module.

[0028] In another embodiment, if Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the cooling mechanism 8 includes a heat conducting pipe 17, which is fixedly installed inside the support groove 2. The heat conducting pipe 17 bends back and forth in an S shape to increase the contact area between the heat conducting pipe 17 and the middle plate body 1. A support box 16 for storing coolant is installed inside the support groove 2. One end of the heat conducting pipe 17 is connected to the support box 16 through a connecting pipe 26. A circulating pump 25 for circulating coolant is fixedly installed on the bottom surface of the support box 16. The inner circular wall surface of the water outlet of the circulating pump 25 is fixedly sleeved with a connecting pipe 26. One end of the connecting pipe 26 is connected to the heat conducting pipe 17, and a return pipe 27 is fixedly installed on the other end of the heat conducting pipe 17. The return pipe 27 is connected to the support box 16. The return pipe 27 bends inwardly, which increases the coolant reflux stroke, thereby reducing the coolant temperature during the coolant reflux process. Cooling rods 9 for reducing the coolant temperature are fixedly installed on both sides of the support box 16.

[0029] Specifically, through the arrangement of the middle plate body 1, the middle plate body 1 will heat up under the influence of the batteries in the insulating battery module when in use. The staff starts the circulation pump 25, and the circulation pump 25 transports the coolant inside the support box 16 to the inside of the heat pipe 17 through the connecting pipe 26. The coolant entering the heat pipe 17 will flow along the heat pipe 17. The coolant flowing inside the heat pipe 17 will take away the heat generated by the heat of the battery on the middle plate body 1. The temperature of the coolant that absorbs the heat on the middle plate body 1 will rise and pass through the reflux pipe 2 7 returns to the interior of the support box 16. When the coolant with a raised temperature passes through the return pipe 27, it will be initially cooled due to the travel of the return pipe 27. The two cooling rods 9 inside the support box 16 can further cool the coolant with a raised temperature, thereby reducing the coolant temperature while realizing the circulation of the coolant in the heat conducting pipe 17, thereby reducing the temperature of the middle plate body 1, achieving a cooling effect on the middle plate body 1, preventing the middle plate body 1 from expanding due to the heat of the battery, and avoiding damage to the insulating battery module due to the thermal expansion of the middle plate body 1;

[0030] Several reinforcement blocks 28 are fixedly installed on both sides of the interior of the support groove 2. A connecting beam 29 is fixedly installed on one side of the reinforcement block 28. One side of the connecting beam 29 is fixedly connected to one side of the interior of the support groove 2. The reinforcement blocks 28 and the connecting beam 29 form a T-shape. The T-shaped structure formed by the reinforcement blocks 28 and the connecting beam 29 can improve the strength of the middle plate body 1.

[0031] Specifically, the reinforcement block 28 and the connecting beam 29 are provided, and the T-shaped structure formed by the reinforcement block 28 and the connecting beam 29 can support the middle plate body 1, improve the strength of the middle plate body 1, and prevent the middle plate body 1 from being deformed under the pressure of the battery;

[0032] Support plates 11 are fixedly installed on both sides of the middle plate body 1, and two support holes 14 are provided on the top surface of the support plate 11. Two reinforcing ribs for reinforcing the support plate 11 are installed between the support plate 11 and the middle plate body 1. Several mounting holes 12 are provided on one side of the support plate 11, and several support beams 13 are fixedly installed on both sides of the middle plate body 1. The support beams 13 are fixedly socketed with the mounting holes 12, and the support beams 13 are I-shaped.

[0033] Specifically, through the support plate 11, the staff puts the bolts into the support holes 14 on the support plate 11 to fix the lower end of the middle plate body 1. At the same time, the support plate 11 can support the batteries on both sides of the middle plate body 1, and the support beams 13 inside the mounting holes 12 on the support plate 11 can support the support plate 11, thereby improving the strength of the support plate 11 and preventing the support plate 11 from shaking due to supporting the batteries.

[0034] Two fixing brackets 5 are fixedly installed on the top surface of the top plate 4. Two fixing holes 6 are opened on the top surface of the fixing bracket 5. Through the setting of the fixing bracket 5, the staff puts the bolts into the fixing holes 6 on the fixing bracket 5 to fix the upper end of the middle plate body 1.

[0035] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An insulating battery module mid-plate assembly, characterized in that: include: Two middle plate bodies, the two middle plate bodies are used to separate the batteries in the insulating battery module, the top surface of the middle plate body is provided with a support groove, the top surface of the middle plate body is installed with a top plate, and both sides of the middle plate body are provided with a plurality of accommodating grooves for accommodating batteries. One side of the middle plate body is provided with a splicing mechanism for splicing the two middle plate bodies, and the interior of the support groove is provided with a cooling mechanism for dissipating heat from the middle plate body.

2. The insulating battery module mid-plate assembly according to claim 1, characterized in that: The splicing mechanism includes two connecting grooves, both of which are opened on one side of the middle plate body on the left side, and two connecting blocks are fixedly installed on one side of the middle plate body on the right side, and two movable plates are slidably connected inside the connecting grooves, and the connecting blocks are movably engaged with the two movable plates, and two support rods for guiding the movement of the movable plates are fixedly installed inside the connecting grooves, and the movable plate is elastically connected to the support rods, and two springs are movably sleeved on the outer circular wall of the support rods, one end of the spring is fixedly connected to the top and bottom surfaces of the movable plate, and the other end of the spring is fixedly connected to the inner top and bottom surfaces of the connecting grooves.

3. The insulating battery module mid-plate assembly according to claim 1, characterized in that: The cooling mechanism includes a heat-conducting pipe, which is fixedly installed inside the support groove. A support box for storing coolant is installed inside the support groove. One end of the heat-conducting pipe is connected to the support box through a connecting pipe. A return pipe is fixedly installed on the other end of the heat-conducting pipe, and the return pipe is connected to the support box. Cooling rods for reducing the temperature of the coolant are fixedly installed on both sides of the support box.

4. The insulating battery module mid-plate assembly according to claim 1, characterized in that: Several reinforcement blocks are fixedly installed on both sides of the inner part of the support groove, a connecting beam is fixedly installed on one side of the reinforcement block, one side of the connecting beam is fixedly connected to one side of the inner part of the support groove, and the reinforcement block and the connecting beam form a T shape.

5. The insulating battery module mid-plate assembly according to claim 1, characterized in that: Support plates are fixedly installed on both sides of the middle plate body. Two support holes are provided on the top surface of the support plate. Two reinforcing ribs for reinforcing the support plate are installed between the support plate and the middle plate body.

6. The insulating battery module mid-plate assembly according to claim 1, characterized in that: Two fixing brackets are fixedly installed on the top surface of the top plate, and two fixing holes are provided on the top surface of the fixing brackets.

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