A new energy vehicle power battery

Abstract

The utility model belongs to power battery field provides a new energy automobile power battery, including power battery main part, power battery main part one side edge part is provided with the connector, and the connector side is inserted with the plug connector, and the connector and the plug connector one side butt joint position department fixed mounting has the fixed plate, and the connector and the plug connector between setting limit mechanism, are used for reinforcing the connector and the plug connector of mutual clamping, and limit mechanism includes a positioning sleeve and no.

Description

Technical Field

[0001] This utility model belongs to the field of power batteries, specifically a power battery for new energy vehicles. Background Technology

[0002] New energy vehicle power batteries are core components that convert chemical energy into electrical energy through chemical reactions, providing power to the vehicle's drive system and electrical equipment. Their performance directly affects the vehicle's range, safety, reliability, and lifespan. Currently, the connection between the power battery connector and the vehicle body generally adopts a "plug and socket" electrical connection mode, while mechanical fixing relies on bolt fastening structures. Specifically, after the power battery plug is electrically connected to the vehicle body socket, bolts are used to fix the mechanical bracket of the connector to the vehicle body mounting position (such as the chassis frame or battery compartment rails) to ensure the reliability of the connection.

[0003] However, during vehicle operation, especially when traversing bumpy roads, accelerating, or braking, vehicle vibrations are transmitted to the power battery connectors through the suspension system. Under high-frequency vibration, the bolt fastening structure is prone to a decrease in preload due to fretting wear of the threaded pair or relaxation of alternating stress. This can lead to relative displacement between the plug and socket, affecting the stable power supply of the power battery and even threatening driving safety. Furthermore, traditional bolt fastening methods require the use of tools such as wrenches and sockets for disassembly and assembly. In the daily maintenance, battery module replacement, or battery swapping scenarios of new energy vehicles, the cumbersome bolt disassembly process significantly reduces maintenance efficiency and increases the labor intensity of operators. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model provides a new energy vehicle power battery to solve issues such as the plug of the power battery becoming loose as the vehicle moves, which are problems in the prior art.

[0005] A power battery for new energy vehicles includes a power battery body, a connector is provided on one side of the power battery body, a plug is inserted into one side of the connector, a fixing plate is fixedly installed at the mating position of the connector and the plug, and a limit mechanism is provided between the connector and the plug to reinforce the connector and the plug that are engaged with each other.

[0006] The limiting mechanism includes a first positioning sleeve and a second positioning sleeve, which are symmetrically engaged at the upper and lower ends of the fixing plate. A fixing groove is provided at one end of the inner wall of the first positioning sleeve and the second positioning sleeve. Sealing gaskets are welded to both sides of the inner wall of the fixing groove. Fixing plugs are fixed to the bottom of both the front and rear ends of the first positioning sleeve. U-shaped plates are fixed to the top of both the front and rear ends of the second positioning sleeve. Limiting holes are provided through the bottom of both sides of the inner wall of the U-shaped plates.

[0007] The fixing plug also includes a snap-fit ​​component for fixing the fixing plug and the U-shaped card plate together.

[0008] Preferably, the snap-fit ​​assembly includes a fixing hole, which is opened through the bottom of the fixing plug. Limiting bodies are movably installed on both sides of the inner wall of the fixing hole. A connecting baffle is fixed to one side of the limiting body, and a tension spring is installed between the two connecting baffles.

[0009] Preferably, guide grooves are provided on both sides of one end of the U-shaped card plate, and a movable component is movably installed inside the guide groove. A push-out block is fixedly connected to one side of the movable component.

[0010] Preferably, positioning support rods are symmetrically fixedly installed on the upper and lower ends of the connector and plug, and positioning kits are symmetrically welded on both sides of the first positioning sleeve and the second positioning sleeve. A through hole is opened in the middle of the top of the positioning kit, and one side of the outer surface of the positioning support rod is located in the through hole.

[0011] Preferably, one side of the limiting body is configured as a downward inclined surface structure, and one side of the limiting body extends into the limiting hole, wherein the limiting body and the limiting hole engage with each other.

[0012] Preferably, the outer diameter of the ejector block is smaller than the inner diameter of the limiting hole, one side of the ejector block is located in the limiting hole, and the limiting hole and the ejector block are fitted together.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model, by setting a limiting mechanism, uses a first positioning sleeve and a second positioning sleeve symmetrically engaged at the upper and lower ends of the fixing plate. Combined with the fixing groove and sealing gasket, this tightly wraps the mating parts of the connector and plug, effectively preventing loosening. Simultaneously, the engaging structure of the limiting body and limiting hole in the engagement assembly further enhances the stability of the connection, reduces the impact of vehicle vibration on the connection, ensures stable power supply to the power battery, and improves the safety and reliability of new energy vehicles.

[0015] 2. This utility model achieves reinforcement by attaching the No. 1 and No. 2 positioning sleeves to the upper and lower ends of the fixing plate, respectively. The limiting body automatically engages with the limiting hole under the action of the tension spring, making the operation simple and quick. During disassembly, pushing the movable part causes the ejector block to act on the limiting body, easily releasing the engagement without the need for cumbersome bolt removal using wrenches or other tools. This significantly improves the maintenance efficiency of new energy vehicle power batteries in daily inspections, battery module replacements, or battery swapping scenarios, and reduces the labor intensity of operation. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connector and plug in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the No. 1 positioning sleeve and the No. 2 positioning sleeve in this utility model;

[0019] Figure 4 This utility model Figure 3 A magnified schematic diagram of part A in the diagram.

[0020] In the picture:

[0021] 1. Power battery body; 2. Connector; 3. Plug; 4. Fixing plate; 5. Positioning sleeve No. 1; 6. Positioning sleeve No. 2; 7. Fixing slot; 8. Sealing gasket; 9. Fixing plug; 10. Fixing hole; 11. Limiting body; 12. Connecting baffle; 13. Tension spring; 14. U-shaped clamping plate; 15. Limiting hole; 16. Guide groove; 17. Moving part; 18. Ejector block; 19. Positioning support rod; 20. Positioning kit. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. Example

[0023] As attached Figure 1 To be continued Figure 4 As shown:

[0024] This utility model provides a power battery for a new energy vehicle, including a power battery body 1, a connector 2 is provided on one side of the power battery body 1, a plug 3 is inserted into one side of the connector 2, a fixing plate 4 is fixedly installed at the mating position of the connector 2 and the plug 3, and a limit mechanism is provided between the connector 2 and the plug 3 to reinforce the connector 2 and the plug 3 that are locked together.

[0025] The limiting mechanism includes a first positioning sleeve 5 and a second positioning sleeve 6. The first positioning sleeve 5 and the second positioning sleeve 6 are symmetrically engaged at the upper and lower ends of the fixed plate 4. A fixed groove 7 is opened at one end of the inner wall of the first positioning sleeve 5 and the second positioning sleeve 6. Sealing gaskets 8 are welded to both sides of the inner wall of the fixed groove 7. Fixed plugs 9 are fixedly connected to the bottom of the front and rear ends of the first positioning sleeve 5. U-shaped plates 14 are fixedly connected to the top of the front and rear ends of the second positioning sleeve 6. Limiting holes 15 are opened through the bottom of both sides of the inner wall of the U-shaped plates 14.

[0026] The fixing plug 9 is also equipped with a snap-fit ​​component, which is used to fix the fixing plug 9 and the U-shaped card plate 14 to each other.

[0027] As can be seen from the above, during installation, the operator first inserts connector 2 and plug 3 to establish an electrical connection. Next, the first positioning sleeve 5 is snapped into place from the top of the fixing plate 4, and the second positioning sleeve 6 is snapped into place from the bottom of the fixing plate 4. At this point, connector 2 and plug 3 are located within the fixing groove 7, and the sealing gasket 8 tightly adheres to the surfaces of connector 2 and plug 3, increasing the sealing and friction of the connection. Then, during the snapping process, the fixing insert 9 gradually approaches the U-shaped clamping plate 14. Under the action of the tension spring 13, the inclined surface of the limiting body 11 first contacts and is compressed against the U-shaped clamping plate 14, causing the limiting body 11 to retract into the fixing hole 10. When the limiting hole 15 aligns with the limiting body 11, the limiting body 11 pops out under the elastic force of the tension spring 13 and snaps into the limiting hole 15, thereby fixing the first positioning sleeve 5 and the second positioning sleeve 6, thus reinforcing connector 2 and plug 3. This structural design ensures that connector 2 and plug 3 maintain a stable connection during vehicle operation, effectively preventing loosening due to vibration.

[0028] Reference Figure 2 and Figure 3 The upper and lower ends of the connector 2 and the plug 3 are symmetrically fixed with positioning support rods 19. The first positioning sleeve 5 and the second positioning sleeve 6 are symmetrically welded with positioning kits 20 on both sides. The top center of the positioning kit 20 has a through hole, and one side of the outer surface of the positioning support rod 19 is located in the through hole.

[0029] As can be seen from the above, during the engagement of the first positioning sleeve 5 and the second positioning sleeve 6, the positioning support rod 19 is inserted into the through hole of the positioning kit 20, which plays an auxiliary positioning role, so that the first positioning sleeve 5 and the second positioning sleeve 6 can be more accurately engaged on the fixed plate 4, further enhancing the stability of the connection. Example

[0030] Reference Figure 3 and Figure 4 The snap-fit ​​assembly includes a fixing hole 10, which is opened through the bottom of the fixing plug 9. Limiting bodies 11 are movably installed on both sides of the inner wall of the fixing hole 10. A connecting baffle 12 is fixedly connected to one side of the limiting body 11. A tension spring 13 is installed between the two connecting baffles 12. One side of the limiting body 11 is set as a downward inclined surface structure. One side of the limiting body 11 extends into the limiting hole 15. The limiting body 11 and the limiting hole 15 are snapped together.

[0031] As can be seen from the above, when the first positioning sleeve 5 and the second positioning sleeve 6 are engaged, the limiting body 11 can quickly and firmly engage into the limiting hole 15 under the elastic force of the tension spring 13. The tension spring 13 provides continuous elastic force to the limiting body 11, ensuring the tight engagement between the limiting body 11 and the limiting hole 15. Even when the vehicle vibrates during driving, it can effectively prevent the limiting body 11 from coming out of the limiting hole 15, thereby ensuring a stable connection between the connector 2 and the plug 3.

[0032] Reference Figure 3 and Figure 4 The U-shaped card plate 14 has guide grooves 16 on both sides of one end. A movable part 17 is movably installed inside the guide groove 16. An ejector block 18 is fixedly connected to one side of the movable part 17. The outer diameter of the ejector block 18 is smaller than the inner diameter of the limiting hole 15. One side of the ejector block 18 is located in the limiting hole 15. The limiting hole 15 and the ejector block 18 are fitted together.

[0033] As can be seen from the above, when disassembly is required, the operator first pushes the movable part 17, which slides within the guide groove 16. Next, the movable part 17 moves the ejector block 18, which gradually inserts into the limiting hole 15 and contacts the limiting body 11. Continuing to push the movable part 17, the ejector block 18 presses the limiting body 11 into the fixing hole 10, disengaging the limiting body 11 from the limiting hole 15. Then, the operator can remove the first positioning sleeve 5 and the second positioning sleeve 6 from the fixing plate 4, thereby separating the connector 2 and the plug 3. The guide groove 16 provides a sliding guide for the movable part 17, ensuring that the ejector block 18 can accurately act on the limiting body 11, achieving a quick and convenient disassembly operation.

[0034] Working principle: During installation, the operator first plugs in connector 2 and connector 3 to complete the electrical connection. Then, positioning sleeve 5 is inserted from the top of fixing plate 4 and positioning sleeve 6 is inserted from the bottom of fixing plate 4. At this time, connector 2 and connector 3 are wrapped by fixing groove 7, and sealing gasket 8 increases sealing and friction. During the insertion process, fixing insert 9 approaches U-shaped plate 14, and limiting body 11 is squeezed into fixing hole 10 by U-shaped plate 14. When limiting hole 15 is aligned with limiting body 11, tension spring 13 pushes limiting body 11 into limiting hole 15, completing the reinforcement of connector 2 and connector 3 by limiting mechanism. At the same time, positioning support rod 19 is inserted into through hole of positioning kit 20 to assist positioning and ensure stable connection.

[0035] During disassembly, the worker pushes the movable part 17, which slides in the guide groove 16, causing the ejector block 18 to insert into the limiting hole 15, squeezing the limiting body 11 to retract into the fixing hole 10, releasing the engagement between the limiting body 11 and the limiting hole 15. Then, the first positioning sleeve 5 and the second positioning sleeve 6 can be easily removed, separating the connector 2 and the plug 3, thus achieving quick disassembly.

[0036] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A power battery for a new energy vehicle, comprising a power battery body (1), wherein a connector (2) is provided on one side of the power battery body (1), and a plug connector (3) is inserted into one side of the connector (2), characterized in that: A fixing plate (4) is fixedly installed at the mating position on one side of the connector (2) and the plug (3). A limit mechanism is provided between the connector (2) and the plug (3) to reinforce the connector (2) and the plug (3) that are engaged with each other. The limiting mechanism includes a first positioning sleeve (5) and a second positioning sleeve (6). The first positioning sleeve (5) and the second positioning sleeve (6) are symmetrically engaged at the upper and lower ends of the fixed plate (4). A fixed slot (7) is provided at one end of the inner wall of the first positioning sleeve (5) and the second positioning sleeve (6). Sealing gaskets (8) are welded to both sides of the inner wall of the fixed slot (7). Fixed plugs (9) are fixedly connected to the bottom of the front and rear ends of the first positioning sleeve (5). U-shaped plates (14) are fixedly connected to the top of the front and rear ends of the second positioning sleeve (6). Limiting holes (15) are provided through the bottom of both sides of the inner wall of the U-shaped plate (14). The fixing plug (9) is also provided with a snap-fit ​​component for fixing the fixing plug (9) and the U-shaped card plate (14) to each other.

2. The new energy vehicle power battery as described in claim 1, characterized in that: The snap-fit ​​assembly includes a fixing hole (10), which is opened through the bottom of the fixing plug (9). Limiting bodies (11) are movably installed on both sides of the inner wall of the fixing hole (10). A connecting baffle (12) is fixedly connected to one side of the limiting body (11). A tension spring (13) is installed between the two connecting baffles (12).

3. The new energy vehicle power battery as described in claim 1, characterized in that: The U-shaped card plate (14) has guide grooves (16) on both sides of one end. A movable part (17) is movably installed inside the guide groove (16). A push-out block (18) is fixedly connected to one side of the movable part (17).

4. The new energy vehicle power battery as described in claim 1, characterized in that: The connector (2) and plug (3) are symmetrically fixed with positioning support rods (19) at both ends. The first positioning sleeve (5) and the second positioning sleeve (6) are symmetrically welded with positioning kits (20) on both sides. The top center of the positioning kit (20) has a through hole, and one side of the outer surface of the positioning support rod (19) is located in the through hole.

5. A new energy vehicle power battery as described in claim 2, characterized in that: The limiting body (11) has a downward inclined surface structure on one side, and one side of the limiting body (11) extends into the limiting hole (15). The limiting body (11) and the limiting hole (15) engage with each other.

6. The new energy vehicle power battery as described in claim 3, characterized in that: The outer diameter of the ejector block (18) is smaller than the inner diameter of the limiting hole (15). One side of the ejector block (18) is located in the limiting hole (15). The limiting hole (15) and the ejector block (18) are fitted together.

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