Connecting piece for power battery connection

Abstract

The utility model discloses a connecting piece for power battery connection, which comprises a fixed frame, a telescopic frame connected in the fixed frame in a sliding manner, and a positioning mechanism arranged at one end of the telescopic frame, the positioning mechanism comprises a cavity, a lifting plate, a clamping block, a reset spring and a pull rod, and the connecting piece further comprises a wiring mechanism arranged at one end of the fixed frame and one end of the telescopic frame; a pull rod is pulled through a control ring, a reset spring is extruded under the action of a lifting plate, so that a clamping block is separated from a limiting groove, under the limiting action of a protruding strip and a groove, a telescopic frame is pulled to slide along the inner wall of a fixing frame, the control ring is loosened, under the elastic action of the reset spring, the clamping block is clamped into the limiting groove again, and the telescopic frame is fixedly connected with the fixing frame; therefore, the power battery connecting piece can adjust the length of the connecting part in the process of connecting a plurality of independent battery modules, so that the power battery connecting piece can meet the connection of battery modules of various specifications, and the compatibility of the power battery connecting piece is improved.

Description

Technical Field

[0001] This utility model relates to the field of power battery connection technology, and in particular to a connector for connecting power batteries. Background Technology

[0002] A power battery is a power source that provides power to tools, often referring to the batteries that power electric vehicles, electric trains, electric bicycles, and golf carts. Power batteries are a core component of new energy vehicles and an important direction for future energy transition. Battery connectors are conductive connectors that connect the terminals of several independent battery modules, batteries, or battery packs to carry current.

[0003] In the prior art, Chinese utility model patent CN215816269U discloses a power battery connector, belonging to the field of new energy battery technology. It includes a connecting part and connecting terminals, with the connecting terminals perpendicularly arranged to the connecting part. There are two connecting terminals, located at opposite ends of the connecting part on the same side, and arranged parallel to each other. The power battery connector is made of copper, brass, or aluminum, exhibiting good electrical conductivity and heat dissipation. This power battery connector enables series and parallel connections between batteries, forming heat dissipation pathways between multiple batteries and between the battery and the casing, significantly improving battery heat dissipation. Battery packs connected using this power battery connector have a neat arrangement, are easy to connect, and have good heat dissipation performance, thus ensuring safer use.

[0004] Problems compared to existing technologies: Some existing power battery connectors cannot adjust the length of the connector when connecting multiple independent battery modules, resulting in the power battery connectors not being able to meet the connection of battery modules of various specifications, and the compatibility needs to be improved.

[0005] Therefore, there is an urgent need for a connector for connecting power batteries. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a connector for connecting power batteries.

[0007] The present invention solves its technical problem through the following technical solution: it includes a fixed frame, a telescopic frame slidably connected inside the fixed frame, and a positioning mechanism set at one end of the telescopic frame for adjusting the length of the power battery connector. The positioning mechanism includes a cavity cut at one end of the telescopic frame. A lifting plate is set inside the cavity. A locking block is set above the lifting plate. A return spring is set below the lifting plate. One end of the return spring is fixedly connected to the inner wall of the cavity. A pull rod is set in the middle of the lifting plate. It also includes a wiring mechanism set at one end of the fixed frame and the telescopic frame for connecting the battery module.

[0008] As a further embodiment of this utility model: the wiring mechanism includes a round rod, which is welded to one end of the fixing frame. A connecting terminal is provided on the outer side of the round rod, and multiple slots are evenly provided on the outer side of the round rod. A nut is provided at one end of the connecting terminal, and a screw is provided on the inner wall of the nut. The screw is in clearance fit with the slot.

[0009] As a further improvement of this utility model, one end of the connecting terminal is provided with a mounting hole for connecting multiple battery modules.

[0010] As a further improvement of this utility model: the fixing frame is provided with multiple limiting grooves in the middle position, the limiting grooves are in clearance fit with the locking block, and the top of the locking block is provided with a rounded chamfer.

[0011] As a further improvement of this utility model: the inner wall of the fixing frame is provided with a groove, and both ends of the telescopic frame are provided with protrusions, the protrusions being slidably connected to the groove.

[0012] As a further improvement of this utility model: a damping rod is provided at one end of the pull rod, and a control ring is provided at the middle position of the damping rod.

[0013] As a further improvement of this utility model: the bottom of the fixing frame is provided with a sliding groove, and the pull rod is slidably connected to the sliding groove.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] 1. A control ring is provided. By pulling the lever through the control ring, the return spring is squeezed under the action of the lifting plate, thereby disengaging the locking block from the limiting groove. Under the limiting action of the protrusion and the groove, the telescopic frame slides along the inner wall of the fixed frame. Similarly, when the telescopic frame extends to a suitable distance, the control ring is released. Under the elastic action of the return spring, the locking block re-engages into the limiting groove, fixing the telescopic frame to the fixed frame. This allows the length of the connection part of the power battery connector to be adjusted during the connection of multiple independent battery modules, enabling the power battery connector to meet the connection of battery modules of various specifications and improving the compatibility of the power battery connector. A damping rod is provided, which can retract the control ring under the damping action of the damping rod.

[0016] 2. By setting a screw, the screw is turned and, under the action of the nut, the screw is disengaged from the slot. At this time, the connecting terminal can be driven to rotate along the round rod. Similarly, the screw can be engaged with the slot, thereby fixing the connecting terminal to the round rod. This allows the power battery connector to connect to the battery module at multiple angles, enriching the functionality of the power battery connector. Attached Figure Description

[0017] Figure 1 A schematic diagram of an isometric structure according to an embodiment of the present invention is shown;

[0018] Figure 2 A schematic diagram of the front cross-sectional structure according to an embodiment of the present invention is shown;

[0019] Figure 3 The present invention provides an embodiment of the present invention. Figure 2 A magnified view of the structure at point A in the middle;

[0020] Figure 4 The present invention provides an embodiment of the present invention. Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0021] Figure 5 The present invention provides an embodiment of the present invention. Figure 1 A magnified schematic diagram of the structure at point C.

[0022] Legend:

[0023] 100. Fixed frame; 110. Telescopic frame; 200. Mounting hole; 300. Limiting groove; 400. Groove; 500. Raised strip; 600. Rounded chamfer; 700. Damping rod; 800. Control ring; 900. Slide groove;

[0024] 101. Cavity; 102. Lifting plate; 103. Locking block; 104. Return spring; 105. Pull rod;

[0025] 201. Round rod; 202. Connecting terminal; 203. Slot; 204. Nut; 205. Screw. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] Example 1:

[0030] like Figure 1-5As shown, a connector for connecting a power battery includes a fixed frame 100, a telescopic frame 110 slidably connected inside the fixed frame 100, and a positioning mechanism disposed at one end of the telescopic frame 110 for adjusting the length of the power battery connector. The positioning mechanism includes a cavity 101 cut at one end of the telescopic frame 110. A lifting plate 102 is slidably connected inside the cavity 101. A locking block 103 is bolted to the top of the lifting plate 102. Multiple limiting grooves 300 are cut in the middle of the fixed frame 100. The limiting grooves 300 are clearance-fitted with the locking block 103. The top of the locking block 103 is cut with a rounded chamfer 600. A return spring 104 is fixed to the lower part of the lifting plate 102 by bolts. One end of the return spring 104 is fixedly connected to the inner wall of the cavity 101. A pull rod 105 is fixed to the middle position of the lifting plate 102 by bolts. A damping rod 700 is fixed to one end of the pull rod 105 by bolts. A control ring 800 is fixed to the middle position of the damping rod 700 by bolts. The lifting plate 102 also includes a wiring mechanism set at one end of the fixed frame 100 and the telescopic frame 110 for connecting the battery module. The inner wall of the fixed frame 100 is cut with a groove 400. Both ends of the telescopic frame 110 are fixed with protrusions 500 by bolts. The protrusions 500 are slidably connected to the grooves 400.

[0031] In this embodiment, a control ring 800 is provided. By pulling the pull rod 105 through the control ring 800, the return spring 104 is squeezed under the action of the lifting plate 102, thereby disengaging the locking block 103 from the limiting groove 300. Under the limiting action of the protrusion 500 and the groove 400, the telescopic frame 110 is pulled to slide along the inner wall of the fixed frame 100. Similarly, when the telescopic frame 110 extends to a suitable distance, the control ring 800 is released. Under the elastic action of the return spring 104, the locking block 103 is re-engaged into the limiting groove 300, fixing the telescopic frame 110 to the fixed frame 100. This allows the length of the connection part of the power battery connector to be adjusted during the connection of multiple independent battery modules, enabling the power battery connector to meet the connection of battery modules of various specifications and improving the compatibility of the power battery connector. A damping rod 700 is provided, which can retract the control ring 800 under the damping action of the damping rod 700.

[0032] Example 2:

[0033] like Figure 1-4As shown, a connector for connecting a power battery includes a wiring mechanism comprising a round rod 201 welded to one end of a fixing frame 100. A connecting terminal 202 is rotatably connected to the outer side of the round rod 201. One end of the connecting terminal 202 is cut with a mounting hole 200 for connecting multiple battery modules. Multiple slots 203 are evenly cut on the outer side of the round rod 201. A nut 204 is fixed to one end of the connecting terminal 202 by a bolt. A screw 205 is threaded onto the inner wall of the nut 204. The screw 205 is clearance-fitted with the slots 203. A sliding groove 900 is cut at the bottom of the fixing frame 100, and a pull rod 105 is slidably connected to the sliding groove 900.

[0034] In this embodiment, a screw 205 is provided. By turning the screw 205, under the action of the nut 204, the screw 205 is disengaged from the slot 203. At this time, the connecting terminal 202 can be driven to rotate along the round rod 201. Similarly, the screw 205 can be engaged with the slot 203, thereby fixing the connecting terminal 202 and the round rod 201. This allows the power battery connector to connect to the battery module at multiple angles, enriching the functionality of the power battery connector.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A connecting piece for connecting a power cell, characterized in that Including fixed frame (100), sliding connection in fixed frame (100) inside telescopic frame (110), setting in telescopic frame (110) one end positioning mechanism, for the length of power battery connecting piece is adjusted, The positioning mechanism includes a cavity (101), the cavity (101) is cut in one end of the telescopic frame (110), the inside of the cavity (101) is provided with a lifting plate (102), the top of the lifting plate (102) is provided with a clamping block (103), the bottom of the lifting plate (102) is provided with a reset spring (104), one end of the reset spring (104) is fixedly connected with the inner wall of the cavity (101), the middle position of the lifting plate (102) is provided with a pull rod (105), It also includes a wiring mechanism arranged at one end of the fixed frame (100) and the telescopic frame (110) for connecting the battery module.

2. The connecting piece for connecting power cells according to claim 1, characterized in that The wiring mechanism includes a round rod (201), the round rod (201) is welded to one end of the fixed frame (100), the outer side of the round rod (201) is provided with a connecting terminal (202), the outer side of the round rod (201) is uniformly provided with a plurality of clamping grooves (203), one end of the connecting terminal (202) is provided with a nut (204), the inner wall of the nut (204) is provided with a screw rod (205), the screw rod (205) is gap matched with the clamping groove (203).

3. The connecting piece for connecting power cells according to claim 2, characterized in that One end of the connecting terminal (202) is provided with a mounting hole (200) for connecting a plurality of battery modules.

4. The connecting piece for connecting power cells according to claim 1, characterized in that, The middle position of the fixed frame (100) is provided with a plurality of limiting grooves (300), the limiting grooves (300) are gap matched with the clamping block (103), the top of the clamping block (103) is provided with a round chamfer (600).

5. The connecting piece for connecting power cells according to claim 1, characterized in that, The inner wall of the fixed frame (100) is provided with a groove (400), both ends of the telescopic frame (110) are provided with a convex strip (500), the convex strip (500) is slidingly connected with the groove (400).

6. The connecting piece for connecting power cells according to claim 1, characterized in that One end of the pull rod (105) is provided with a damping rod (700), the middle position of the damping rod (700) is provided with a control ring (800).

7. The connecting piece for connecting power cells according to claim 1, characterized in that, The bottom of the fixed frame (100) is provided with a sliding groove (900), the pull rod (105) is slidingly connected with the sliding groove (900).

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