Power battery top cover bracket and power battery

Abstract

The present invention relates to the field of battery technology, and in particular to a power battery top cover bracket and a power battery, comprising a battery main body and a top cover installed on the upper end of the battery main body, side panels are movably installed on both side edges of the top cover through a distance adjustment mechanism, a plurality of side openings are penetrated through the side surface of the side plate, a threaded rod is rotatably connected to the inner front edge of each side opening, and limit rods are threadedly sleeved on the upper and lower ends of the outer surface of the threaded rod, and one end of the two limit rods is located on the inner side of the side opening, and a buckle mechanism is provided at the corner of the front surface of the battery main body and the lower side of the top cover. After the battery main body of the present invention is assembled into the bracket, both sides of the top cover have a bracing function, which effectively improves the structural stability and is not prone to loosening during long-term use. The top cover and the battery main body are convenient to assemble, and reinforcement can be completed without the aid of bolts during assembly, thereby improving assembly efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a power battery top cover bracket and a power battery. Background Art

[0002] Power battery refers to a device used in a car that can store and recharge electrical energy to provide energy for driving the car. Lithium-ion battery: It is the most widely used type of power battery in new energy vehicles. It has the advantages of high energy density, long life, no memory effect, and environmental protection. Common lithium-ion batteries include lithium iron phosphate batteries and ternary lithium batteries.

[0003] As one of the important components of power batteries, the power battery top cover plays an important role in ensuring battery safety performance, improving battery life and reducing production costs.

[0004] After the existing top cover is installed, it is assembled and fixed with the battery body by bolts. After the battery body is installed in the bracket, it is also fixed by bolts. However, the bolts are prone to loosening after long-term use. Although they are located on the inside of the bracket and can play a limiting role, the shaking affects the structural stability and increases the failure rate. Therefore, we propose a power battery top cover bracket and a power battery. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a power battery top cover bracket and a power battery.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a power battery top cover bracket and a power battery, comprising a battery body, a top cover installed on the upper end of the battery body, side plates are movably installed on both sides of the top cover through a distance adjustment mechanism, a plurality of side openings are penetrated through the side surface of the side plate, a threaded rod is rotatably connected to the inner front edge of each side opening, and a limit rod is threadedly sleeved on the upper and lower ends of the outer surface of the threaded rod, and one end of the two limit rods is located on the inner side of the side opening, a buckle mechanism is provided at the corner of the front surface of the battery body and the lower side of the top cover, the battery body is fixedly installed on the inner side of the bracket, and concave steel grooves are provided on both sides of the inner side of the bracket;

[0007] The threaded rod rotates, first driving the limit rod to rotate synchronously. When one end of the limit rod contacts the inner side of the concave steel groove, the upper and lower limit rods move away from each other and are respectively tightened on the top and bottom surfaces inside the concave steel groove.

[0008] Preferably, the distance adjusting mechanism includes a fixing sleeve fixedly installed at the edge of the upper surface of the top cover, an adjusting plate is fixedly connected to the upper side of the side plate, the adjusting plate slides through the inner side of the fixing sleeve, one side of the adjusting plate is fixedly connected to a connecting plate, a side thread of the connecting plate is penetrated by a distance adjusting rod, the distance adjusting rod rotates and penetrates the side of the fixing sleeve, and one end of the distance adjusting rod is fixedly connected to a first polygonal head.

[0009] Preferably, guide sleeves are fixedly installed at the front and rear corners of the upper surface of the top cover, and plug plates are fixedly connected to the front and rear ends of the upper edges of the side panels, respectively, and the plug plates slide through the inner side of the guide sleeves.

[0010] Preferably, the upper end of the threaded rod passes through the upper surface of the side plate, and the upper end of the threaded rod is fixedly connected to a second polygonal head.

[0011] Preferably, the snap mechanism includes a buckle plate fixedly connected to the front and rear end portions of the top cover, the outer surface of the buckle plate is provided with a strip opening and a widened opening that are interconnected, a concave seat is fixedly connected to the corner of the front surface of the battery body, and two symmetrical clamping blocks are movably mounted on the upper end of the concave seat through an elastic mechanism, and limiting blocks are fixedly connected to the sides of the two clamping blocks that are away from each other, the concave seat slides and snaps into the inner side of the strip opening, and the two clamping blocks slide into the inner side of the widened opening, and the rear surface of the limiting block is movably attached to the front surface of the buckle plate.

[0012] Preferably, the elastic mechanism includes a fixed rod fixedly connected between the two inner walls of the concave seat, and the outer surface of the fixed rod is slidably sleeved with two sliding blocks, the upper ends of the sliding blocks are fixedly connected to the lower surface of the clamping block, a compression spring is arranged between the two sliding blocks, and the compression spring is sleeved on the outer surface of the fixed rod.

[0013] Preferably, the upper surfaces of the two clamping blocks are respectively provided with inclined surfaces.

[0014] Preferably, a mounting seat is fixedly connected to the lower edge of the battery body, a plurality of mounting holes are penetrated through the upper surface of the mounting seat, a bottom support plate is fixedly mounted on the lower surface of the bracket, the battery body is fixedly mounted on the upper surface of the bottom support plate, heat sinks are fixedly mounted on both side surfaces of the battery body, and the side plate is located on one side of the heat sink.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] After the battery body of the present invention is assembled into the bracket, the two sides of the top cover have the function of tightening, which effectively improves the structural stability and is not prone to loosening during long-term use;

[0017] The top cover of the present invention is easy to assemble with the battery body, and reinforcement can be completed without the aid of bolts during assembly, thereby improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a power battery top cover bracket and a power battery of the present invention;

[0019] Figure 2 It is a schematic diagram of a power battery top cover bracket and a side plate of a power battery of the present invention;

[0020] Figure 3 A power battery top cover bracket and a power battery of the present invention Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of a power battery top cover bracket and a corner of a power battery of the present invention;

[0022] Figure 5 A power battery top cover bracket and a power battery of the present invention Figure 4 Enlarged view of point B in the middle;

[0023] Figure 6 A power battery top cover bracket and a power battery of the present invention Figure 4 Enlarged view of point C in the middle;

[0024] Figure 7 This is a schematic diagram of a power battery top cover bracket and a gusset plate of a power battery according to the present invention;

[0025] Figure 8 It is a schematic diagram of a power battery top cover bracket and a power battery clamping block of the present invention;

[0026] Fig. 9 This is a schematic diagram of an assembled power battery top cover bracket and a power battery according to the present invention;

[0027] Fig.10 It is a partial cross-sectional view of a power battery top cover bracket and a power battery after assembly according to the present invention.

[0028] 1. Top cover; 2. Side plate; 3. Insert plate; 4. Guide sleeve; 5. Adjustment plate; 6. Fixed sleeve; 7. Distance adjustment rod; 8. First polygonal head; 9. Connecting plate; 10. Side opening; 11. Threaded rod; 12. Second polygonal head; 13. Limit rod; 14. Buckle plate; 15. Strip opening; 16. Widened opening; 17. Concave seat; 18. Sliding block; 19. Block; 20. Inclined surface; 21. Limiting block; 22. Fixed rod; 23. Compression spring; 24. Battery body; 25. Mounting seat; 26. Mounting hole; 27. Heat sink; 28. Bracket; 29. ​​Concave steel groove; 30. Bottom support plate. DETAILED DESCRIPTION

[0029] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] like Figure 1-Figure 10 A power battery top cover bracket and a power battery shown in the figure include a battery body 24 and a top cover 1 installed on the upper end of the battery body 24. The battery body 24 is a lithium battery in the prior art. Side panels 2 are movably installed on both sides of the top cover 1 through a distance adjustment mechanism. A plurality of side openings 10 are penetrated through the side surface of the side panel 2. A threaded rod 11 is rotatably connected to the inner front edge of each side opening 10. Limiting rods 13 are respectively threadedly sleeved on the upper and lower ends of the outer surface of the threaded rod 11, and one end of the two limiting rods 13 is located on the inner side of the side opening 10. A buckle mechanism is provided at the corner of the front surface of the battery body 24 and the lower side of the top cover 1. The battery body 24 is fixedly installed on the inner side of the bracket 28. Concave steel grooves 29 are respectively provided on both sides of the inner side of the bracket 28.

[0031] During the assembly process, the threaded rod 11 rotates, first driving the limit rod 13 to rotate synchronously. When one end of the limit rod 13 contacts the inner side of the concave steel groove 29, the upper and lower limit rods 13 move away from each other and are respectively tightened on the top and bottom surfaces inside the concave steel groove 29.

[0032] like Figure 4 , Figure 5 As shown, the distance adjustment mechanism includes a fixing sleeve 6 fixedly mounted on the edge of the upper surface of the top cover 1, an adjusting plate 5 is fixedly connected to the upper side of the side plate 2, the adjusting plate 5 slides through the inner side of the fixing sleeve 6, a connecting plate 9 is fixedly connected to one side of the adjusting plate 5, a distance adjustment rod 7 is threadedly penetrated through the side of the connecting plate 9, the distance adjustment rod 7 rotates and penetrates the side of the fixing sleeve 6, and a first polygonal head 8 is fixedly connected to one end of the distance adjustment rod 7. The user rotates the first polygonal head 8 with a wrench to rotate the distance adjustment rod 7, thereby causing the adjusting plate 5 to move horizontally, thereby causing the side plate 2 to move horizontally, and changing the distance between the side plate 2 and the top cover 1.

[0033] like Figure 2 , Figure 4 As shown, guide sleeves 4 are fixedly installed at the front and rear corners of the upper surface of the top cover 1, and plug plates 3 are fixedly connected at the front and rear ends of the upper edges of the side panels 2, respectively, and the plug plates 3 slide through the inner side of the guide sleeves 4. When the side panels 2 move laterally, the plug plates 3 slide relatively along the inner side of the guide sleeves 4, thereby improving the stability of the side panels 2 when moving laterally.

[0034] like Figure 2 , Figure 3As shown, the upper end of the threaded rod 11 passes through the upper surface of the side plate 2, and the upper end of the threaded rod 11 is fixedly connected to the second polygonal head 12. The user rotates the second polygonal head 12 with a wrench to rotate the threaded rod 11. The threads on the surface of the threaded rod 11 are symmetrical up and down, ensuring that the upper and lower limit rods 13 move closer to or away from each other during rotation.

[0035] like Figure 4 , Figure 6 , Figure 7 , Figure 8 As shown, the buckle mechanism includes a buckle plate 14 fixedly connected to the front and rear ends of the top cover 1, and the outer surface of the buckle plate 14 is provided with a strip-shaped opening 15 and a widened opening 16 that are interconnected. A concave seat 17 is fixedly connected to the corner of the front surface of the battery body 24, and two symmetrical clamping blocks 19 are movably installed on the upper end of the concave seat 17 through an elastic mechanism. The two clamping blocks 19 are fixedly connected to the sides away from each other with limiting blocks 21 respectively. The concave seat 17 slides into the inner side of the strip-shaped opening 15, and the two clamping blocks 19 slide into the inner side of the widened opening 16. The rear surface of the limiting block 21 is movably attached to the front surface of the buckle plate 14. This partial solution design makes the assembly of the top cover 1 and the battery body 24 more convenient.

[0036] The elastic mechanism includes a fixed rod 22 fixedly connected between the two inner walls of the concave seat 17, and two sliding blocks 18 are slidably sleeved on the outer surface of the fixed rod 22. The upper ends of the sliding blocks 18 are fixedly connected to the lower surface of the clamping block 19, and a compression spring 23 is arranged between the two sliding blocks 18, and the compression spring 23 is sleeved on the outer surface of the fixed rod 22. The compression spring 23 is used to provide elastic force to ensure that the clamping block 19 can be clamped into the inner side of the widened opening 16.

[0037] The upper surfaces of the two clamping blocks 19 are respectively provided with inclined surfaces 20. In the assembly of the top cover 1 and the battery body 24, there is no need to manually pull the clamping blocks 19, and the assembly between the clamping blocks 19 and the buckle plate 14 can be completed by pushing.

[0038] like Figure 4 , Fig.10 As shown, the lower edge of the battery body 24 is fixedly connected with a mounting seat 25, and the upper surface of the mounting seat 25 is penetrated with a plurality of mounting holes 26, and the lower surface of the bracket 28 is fixedly mounted with a bottom support plate 30, and the battery body 24 is fixedly mounted on the upper surface of the bottom support plate 30, and the two side surfaces of the battery body 24 are respectively fixedly provided with heat dissipation plates 27, and the side plate 2 is located on one side of the heat dissipation plate 27. Therefore, it is still ensured that the heat dissipation plate 27 can dissipate heat, and the side plate 2 does not interfere with the heat dissipation plate 27.

[0039] During use and assembly, after the battery body 24 is fixedly mounted on the surface of the bottom support plate 30, the pitch adjusting rod 7 is rotated to make the adjustment plate 5 slide relatively inside the fixing sleeve 6, so that the side plate 2 moves away from the top cover 1 until the side of the side plate 2 contacts the upper side of the concave steel groove 29, and then the second polygonal head 12 is rotated to make the threaded rod 11 rotate, and one end of the limit rod 13 moves toward the inner side away from the side opening 10 until the end of the limit rod 13 abuts against the inner wall of the concave steel groove 29 and then stops rotating, and the threaded rod 11 is continued to be rotated, and the limit rod 13 moves relatively on the surface of the threaded rod 11, and the upper and lower threaded rods 11 move away from each other until they are respectively tightened on the inner top and bottom surfaces of the concave steel groove 29, that is, the locking action is completed. Therefore, the installation and reinforcement action of the battery body 24 can be conveniently carried out, the assembly is convenient, and the structure is stable.

[0040] During the assembly of the top cover 1 and the battery body 24, the top cover 1 is pressed down. When the inclined surface 20 contacts the lower end of the strip opening 15, a pushing effect will occur, causing the two blocks 19 to move closer to each other, squeezing the compression spring 23, and continuing to press down. The blocks 19 slide up relatively along the inner side of the strip opening 15. When they slide to the inner side of the widened opening 16, under the elastic force of the compression spring 23, the two blocks 19 move away from each other and slide into the two sides of the widened opening 16 respectively. At the same time, the limiting block 21 will contact the front surface of the buckle plate 14, thereby completing the assembly steps of the top cover 1. The assembly is convenient and has a good locking effect.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A power battery top cover bracket and a power battery, comprising a battery body (24), a top cover (1) mounted on the upper end of the battery body (24), Features: Side plates (2) are movably mounted on both sides of the top cover (1) through a distance adjustment mechanism. A plurality of side openings (10) are formed through the side surface of the side plate (2). A threaded rod (11) is rotatably connected to the inner front edge of each side opening (10). Limit rods (13) are threadedly sleeved on the upper and lower ends of the outer surface of the threaded rod (11), and one end of each of the two limit rods (13) is located on the inner side of the side opening (10). A buckle mechanism is provided at the corner of the front surface of the battery body (24) and the lower side of the top cover (1). The battery body (24) is fixedly mounted on the inner side of a bracket (28). Concave steel grooves (29) are provided on both sides of the inner side of the bracket (28). The threaded rod (11) rotates, first driving the limit rod (13) to rotate synchronously, and when one end of the limit rod (13) contacts the inner side of the concave steel groove (29), the upper and lower limit rods (13) move away from each other and are respectively supported on the inner top and bottom surfaces of the concave steel groove (29); The distance adjustment mechanism comprises a fixing sleeve (6) fixedly mounted on the edge of the upper surface of the top cover (1); an adjusting plate (5) is fixedly connected to the upper side of the side plate (2); the adjusting plate (5) slides through the inner side of the fixing sleeve (6); a connecting plate (9) is fixedly connected to one side of the adjusting plate (5); a distance adjustment rod (7) is threadedly penetrated through the side surface of the connecting plate (9); the distance adjustment rod (7) rotates and penetrates the side surface of the fixing sleeve (6); and one end of the distance adjustment rod (7) is fixedly connected to a first polygonal head (8); A guide sleeve (4) is fixedly mounted at the front and rear corners of the upper surface of the top cover (1), and an insert plate (3) is fixedly connected to the front and rear ends of the upper edges of the side plates (2), respectively, and the insert plate (3) slides through the inner side of the guide sleeve (4).

2. A power battery top cover bracket and a power battery according to claim 1, Features: The upper end of the threaded rod (11) passes through the upper surface of the side plate (2), and the upper end of the threaded rod (11) is fixedly connected to a second polygonal head (12).

3. A power battery top cover bracket and a power battery according to claim 1, Features: The buckle mechanism comprises a buckle plate (14) fixedly connected to the front and rear ends of the top cover (1); the outer surface of the buckle plate (14) is provided with a strip opening (15) and a widened opening (16) which are interconnected; a concave seat (17) is fixedly connected to the corner of the front surface of the battery body (24); two symmetrical clamping blocks (19) are movably mounted on the upper end of the concave seat (17) through an elastic mechanism; the two clamping blocks (19) are respectively fixedly connected to limiting blocks (21) on the sides away from each other; the concave seat (17) is slidably clamped into the inner side of the strip opening (15); the two clamping blocks (19) are slidably clamped into the inner side of the widened opening (16); and the rear surface of the limiting block (21) is movably attached to the front surface of the buckle plate (14).

4. A power battery top cover bracket and a power battery according to claim 3, Features: The elastic mechanism comprises a fixed rod (22) fixedly connected between two inner walls of the concave seat (17); two sliding blocks (18) are slidably sleeved on the outer surface of the fixed rod (22); the upper ends of the sliding blocks (18) are fixedly connected to the lower surface of the clamping block (19); a compression spring (23) is provided between the two sliding blocks (18), and the compression spring (23) is sleeved on the outer surface of the fixed rod (22).

5. A power battery top cover bracket and a power battery according to claim 3, Features: The upper surfaces of the two clamping blocks (19) are respectively provided with inclined surfaces (20).

6. A power battery top cover bracket and a power battery according to claim 1, Features: The lower edge of the battery body (24) is fixedly connected to a mounting seat (25), the upper surface of the mounting seat (25) is penetrated by a plurality of mounting holes (26), the lower surface of the bracket (28) is fixedly mounted with a bottom support plate (30), the battery body (24) is fixedly mounted on the upper surface of the bottom support plate (30), and heat sinks (27) are fixedly arranged on both side surfaces of the battery body (24), and the side plate (2) is located on one side of the heat sink (27).

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