Stable power interface and battery module

Abstract

The utility model relates to the technical field of battery modules, in particular to a stable power interface and a battery module, which comprise an interface and a locking component, and the side wall of the interface is provided with an extension groove matched with the locking component; the locking assembly comprises a base, two clamping arms and two buckling claws, one end of the base is provided with a horizontally-arranged stroke groove, the two clamping arms can move inwards along the stroke groove by rotating the rotating shaft, and the ends of the buckling claws can penetrate through the extending grooves through the clamping arms to extend into the inserting cavity; according to the utility model, the locking assembly is arranged in the insertion cavity, so that the buckling claw at the end part of the locking assembly can horizontally penetrate through the extension groove to extend towards the interior of the insertion cavity, the peripheral bulge of a universal joint in the market is limited, the joint can be effectively stabilized in the interface, effective electrical connection is kept, and only the inner wall structure of the interface is changed; meanwhile, the locking assembly can play an effective role in stabilizing universal joints with protrusions on the peripheries in the market, and the product adaptability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of battery modules, in particular to a stable power interface and a battery module. Background Art

[0002] The voltage of a single fuel cell is very low. Under a certain load, the output voltage of a single battery is insufficient, which means that multiple batteries must be connected in series to provide sufficient voltage. Connecting single batteries in series forms a battery stack. The voltage of the battery stack is the sum of the voltages of multiple batteries. The traditional metal-air battery stack adopts a bipolar plate stacking structure. The battery stack module is various devices that make up the battery stack to ensure the normal working supply voltage of the battery stack.

[0003] According to the Chinese utility model patent with the existing publication number CN212604558U, there is described an electric vehicle lithium battery that is convenient for charging. This includes a lithium battery interface for charging. There are pins arranged inside the lithium battery interface, and a charger connector is plugged into the lithium battery interface. A fixing component for stable plugging is arranged at the charger connector. This electric vehicle lithium battery that is convenient for charging can temporarily fix and connect the charger connector and the lithium battery interface through the arranged fixing component, avoiding the phenomenon of power-off caused by poor contact and accidental touch.

[0004] However, in the above structure, the newly added limiting rod inside the lithium battery interface needs to be matched with a customized charger connector to achieve the function of electrical connection and the effect of stabilizing the connector and preventing it from falling off easily. However, this structure cannot meet the majority of connection plugs in the large market, is not easy to promote, and has poor applicability. Therefore, in view of these current situations, there is an urgent need to develop a stable power interface and a battery module to meet the actual use needs. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a stable power interface and a battery module, which are used to solve the problem that when the power interface accidentally touches a wire and becomes loose, the battery module cannot maintain normal electrical connection, and at the same time, the stable power interface can be adapted to most power connectors on the market.

[0006] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0007] The stable power interface includes an interface and a locking component. The inside of the interface is a plugging chamber with an opening on one side. Inside the plugging chamber, there are several conductive columns for power supply. An extension slot matching the locking component is opened on the side wall of the interface. The locking component includes a base, two clamping arms, and two claw latches. One end of the base is provided with a horizontally arranged travel slot. One end of the clamping arm is movably arranged inside the travel slot. The claw latch is arranged at the other end of the clamping arm. A rotatable rotating shaft is provided inside the base. One end of the rotating shaft extends into the travel slot and is movably connected to the clamping arm. By rotating the rotating shaft, the two clamping arms can move inward along the travel slot. The end of the claw latch can extend through the extension slot into the inside of the plugging chamber through the clamping arm.

[0008] In the above description, as a further solution, the end of the claw latch away from the clamping arm is a horizontally arranged buckling part, and the buckling part extends in the direction close to the rotating shaft. The buckling part is used to extend into the plugging chamber to form a limiting structure with an external connector.

[0009] In the above description, as a further solution, two horizontally arranged connecting ball shafts are provided at the end of the rotating shaft extending into the travel slot, and the connecting ball shafts are symmetrically arranged around the rotating shaft.

[0010] In the above description, as a further solution, a ball shaft buckle groove matching the connecting ball shaft is opened at one end of the clamping arm close to the travel slot, and the connecting ball shaft is rotatably connected to the ball shaft buckle groove.

[0011] A battery module includes a housing, several battery cells, and the above stable power interface. The several battery cells are arranged inside the housing through a bracket. The two ends of the housing are end shells. The interface is arranged on one of the end shells, and the plugging chamber extends to the surface of the end shell. The interface is used for electrically connecting with the battery cells inside the housing. The locking component is arranged inside the housing and is located at one end of the interface away from the plugging chamber.

[0012] In the above description, as a further solution, a rotatable driving rotary disk is provided at one end of the base away from the interface. One end of the rotating shaft away from the travel slot is fixedly connected to the driving rotary disk. An avoidance groove is opened on the side wall of the housing, and one side edge of the rotating shaft passes through the avoidance groove and extends to the surface of the housing.

[0013] In the above description, as a further solution, several notches are provided on the edge of the driving rotary disk, and the notches are arc-shaped structures.

[0014] The beneficial effects produced by the present utility model are as follows:

[0015] The stable power interface and battery module of the present application. On the one hand, in the stable power interface, an extension groove is provided on the side wall of the interface, so that the claw at the end of the locking component can horizontally pass through the extension groove and extend into the plugging chamber to limit the peripheral protrusion of the common connector on the market, and the connector can be effectively fixed inside the interface to maintain an effective electrical connection.

[0016] On the other hand, this structure only changes the inner wall structure of the interface, and at the same time, the locking component can effectively stabilize the common connectors with protrusions on the periphery on the market, and its product adaptability is relatively strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the stable power interface described in the present utility model;

[0018] Figure 2 is an exploded structural schematic diagram of the stable power interface described in the present utility model;

[0019] Figure 3 is a cross-sectional structural schematic diagram of the locking component described in the present utility model at a first angle;

[0020] Figure 4 is a cross-sectional structural schematic diagram of the locking component described in the present utility model at a second angle;

[0021] Figure 5 is a three-dimensional structural schematic diagram and a partial perspective structural schematic diagram of a battery module described in the present utility model;

[0022] In the figure: 1 - interface, 11 - plugging chamber, 12 - conductive column, 13 - extension groove, 2 - locking component, 21 - base, 211 - travel groove, 22 - claw, 221 - buckling part, 23 - clamping arm, 231 - ball shaft buckle groove, 24 - driving rotary disk, 241 - notch, 25 - rotating shaft, 251 - connecting ball shaft, 3 - outer shell, 31 - end shell, 32 - clearance groove, 4 - battery cell, 5 - bracket, 6 - external connector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with the embodiments and the drawings. The content mentioned in the embodiments does not limit the present utility model. The present utility model will be described in detail below with reference to the drawings.

[0024] Please refer to Figures 1-5, the stable power interface 1 implemented specifically includes an interface 1 and a locking component 2. The inside of the interface 1 is a plugging chamber 11 with an opening on one side. Inside the plugging chamber 11, there are several conductive columns 12 for power supply. On the side wall of the interface 1, there is an extension slot 13 that matches the locking component 2; the locking component 2 includes a base 21, two clamping arms 23, and two claw latches 22. One end of the base 21 is provided with a horizontally arranged travel slot 211. One end of the clamping arm 23 is movably arranged inside the travel slot 211. The claw latch 22 is arranged at the other end of the clamping arm 23. Inside the base 21, there is a rotatable rotating shaft 25. One end of the rotating shaft 25 extends into the travel slot 211 to be movably connected to the clamping arm 23. By rotating the rotating shaft 25, the two clamping arms 23 can move inward along the travel slot 211, and the end of the claw latch 22 can extend through the extension slot 13 into the inside of the plugging chamber 11 through the clamping arm 23.

[0025] On the one hand, for the stable power interface 1, through the extension slot 13 provided on the side wall of the interface 1, the claw latch 22 at the end of the locking component 2 can horizontally extend through the extension slot 13 into the inside of the plugging chamber 11 to limit the peripheral protrusion of the common connector on the market, effectively stabilizing the connector inside the interface 1 and maintaining an effective electrical connection. By changing the inner wall structure of the interface 1, at the same time, the locking component 2 can effectively stabilize the common connector with a protrusion at the periphery on the market, and its product adaptability is relatively strong.

[0026] Specifically, as Figure 3 shown, the end of the claw latch 22 away from the clamping arm 23 is a horizontally arranged buckling part 221. The buckling part 221 extends in the direction close to the rotating shaft 25. The buckling part 221 is used to extend into the plugging chamber 11 to form a limiting structure with the external connector 6. By moving the two claw latches 22 inward simultaneously, the buckling part 221 can be buckled at the peripheral protrusion of the common connector to form a limiting structure in the horizontal direction. Even when the plug is pulled out forcefully outward, the peripheral protrusion of the common connector can be firmly limited horizontally by the claw latches 22.

[0027] Specifically, as Figures 3-4 , at one end of the rotating shaft 25 extending into the travel slot 211, there are two horizontally arranged connecting ball shafts 251. The connecting ball shafts 251 are symmetrically arranged around the rotating shaft 25. At one end of the clamping arm 23 close to the travel slot 211, there is a ball shaft buckle slot 231 that matches the connecting ball shaft 251. The connecting ball shaft 251 is rotatably connected to the ball shaft buckle slot 231.

[0028] When the rotating shaft 25 rotates the two connecting ball shafts 251 to a situation perpendicular to the axis of the travel slot 211, as Figure 4As shown, the connecting ball shaft 251 can drive the ends of the two clamping arms 23 to move inward along the travel groove 211 at the same time. When the rotating shaft 25 rotates the two connecting ball shafts 251 to intersect with the travel groove 211 at 45 degrees, the connecting ball shaft 251 can push the ends of the two clamping arms 23 to move outward along the travel groove 211 at the same time.

[0029] A battery module includes a housing 3, a plurality of battery cells 4, and the above-mentioned stable power interface 1. The plurality of battery cells 4 are arranged inside the housing 3 through a bracket 5. Both ends of the housing 3 are end caps 31. The interface 1 is arranged on one of the end caps 31, and the insertion cavity 11 extends to the surface of the end cap 31. The interface 1 is used for electrically connecting with the battery cells 4 inside the housing 3. The locking assembly 2 is arranged inside the housing 3, and the locking assembly 2 is located at one end of the interface 1 away from the insertion cavity 11.

[0030] One end of the base 21 away from the interface 1 is provided with a rotatable driving rotating disk 24. One end of the rotating shaft 25 away from the travel groove 211 is fixedly connected to the driving rotating disk 24. A clearance groove 32 is formed on the side wall of the housing 3. One side edge of the rotating shaft 25 passes through the clearance groove 32 and extends to the surface of the housing 3. A plurality of notches 241 are formed on the edge of the driving rotating disk 24, and the notches 241 are arc-shaped structures.

[0031] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Although the present invention is disclosed above in a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art, without departing from the technical solution of the present invention, when making some changes or modifications using the above-disclosed technical content as equivalent changed equivalent embodiments, but as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical meaning of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. A stable power interface, comprising an interface and a locking component. The interior of the interface is a plugging chamber with an opening on one side. Inside the plugging chamber, there are several conductive columns for power supply. It is characterized in that: An extension groove matching the locking assembly is formed in the side wall of the interface; the locking assembly includes a base, two clamping arms and two claw catches. A horizontally arranged travel groove is formed at one end of the base. One end of the clamping arm is movably arranged inside the travel groove. The claw catch is arranged at the other end of the clamping arm. A rotatable rotating shaft is arranged inside the base. One end of the rotating shaft extends into the travel groove to be movably connected with the clamping arm. By rotating the rotating shaft, the two clamping arms can move inwards along the travel groove. The end of the claw catch can extend through the extension groove into the plugging chamber through the clamping arm.

2. The stable power interface according to claim 1, wherein: One end of the claw catch away from the clamping arm is a horizontally arranged buckling part, and the buckling part extends towards the direction close to the rotating shaft. The buckling part is used for extending into the plugging chamber to form a limiting structure with an external connector.

3. The stable power interface according to claim 1, wherein: Two horizontally arranged connecting ball shafts are arranged at one end of the rotating shaft extending into the travel groove, and the connecting ball shafts are symmetrically arranged around the rotating shaft respectively.

4. The stable power interface according to claim 3, wherein: A ball shaft buckling groove matching the connecting ball shaft is formed at one end of the clamping arm close to the travel groove, and the connecting ball shaft is rotatably connected with the ball shaft buckling groove.

5. A battery module, comprising a housing, a plurality of battery cells, and the stable power interface according to any one of claims 1-4, wherein the plurality of battery cells are arranged inside the housing through a bracket, and is characterized in that: Both ends of the outer shell are end shells. The interface is arranged on one of the end shells, and the plugging chamber extends to the surface of the end shell. The interface is used for electrically connecting with the battery cell inside the outer shell. The locking assembly is arranged inside the outer shell and is located at one end of the interface away from the plugging chamber.

6. A battery module according to claim 5, characterized in that: A rotatable driving rotating disc is arranged at one end of the base away from the interface. One end of the rotating shaft away from the travel groove is fixedly connected with the driving rotating disc. An avoidance groove is formed in the side wall of the outer shell, and one side edge of the rotating shaft extends through the avoidance groove to the surface of the outer shell.

7. A battery module according to claim 6, wherein: A plurality of notches are arranged on the edge of the driving rotating disc, and the notches are arc-shaped structures.

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