Battery end cover assembly and power battery

Abstract

The utility model provides a battery end cover assembly and a power battery. The battery end cover assembly comprises a base and a second lock assembly, a first locking cavity is formed in the locking end face of the base and used for being locked with or separated from a first locking assembly of the bicycle tube base. The second lock assembly comprises a mounting base, a pressing piece and a movable spring bolt, the mounting base is mounted on the base, and the pressing piece is slidably arranged on the mounting base and exposed out of the outer surface of the mounting base; the movable spring bolt is elastically arranged on the mounting seat in a sliding manner, and the movable spring bolt is exposed out of the locking end face so as to be locked or separated from the second locking cavity of the bicycle tube seat; the pressing piece is used for driving the movable spring bolt to slide relative to the mounting seat during pressing; during unlocking, the first locking cavity is used for being separated from the first lock assembly, and the movable spring bolt is used for being separated from the second locking cavity; during locking, the first locking cavity is used for being locked with the first lock assembly, and the movable spring bolt is used for being locked with the second locking cavity. The battery end cover assembly is long in cycle service life.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of power batteries, and in particular to a battery end cover assembly and a power battery. BACKGROUND

[0002] A power battery is an electrochemical device capable of providing a power source for tools. The power battery is widely used in the fields of electric bicycles, electric trains, electric vehicles, golf carts, wireless sensors and small appliances. The power battery is composed of a battery end cover assembly and a battery package body, and the battery end cover assembly is connected to the battery package body.

[0003] The battery end cover assembly of the related art comprises a battery lock seat, a first lock assembly and a second lock assembly. The battery lock seat is used to fix the battery package body on the pipe. The first lock assembly and the second lock assembly are both connected to the same end of the battery lock seat. When the first lock assembly is unlocked, the end side of the battery lock seat is used to partially separate from the battery package body. When the second lock assembly is unlocked, the end side of the battery lock seat is used to completely separate from the battery package body, such as the Chinese patent with the patent number CN202323664320.0.

[0004] However, since the user first unlocks the first lock assembly, the end side of the battery lock seat is used to partially separate from the battery package body. After the first lock assembly is unlocked, the battery package body slides under the action of external force to contact the second lock assembly, which generates a certain impact force. The second lock assembly is a spring lock, so that the second lock assembly can withstand a smaller impact force, which leads to the second lock assembly being more easily damaged, thereby shortening the cycle service life of the battery end cover assembly. UTILITY MODEL CONTENT

[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a battery end cover assembly with a longer cycle service life and a power battery.

[0006] The purpose of the present disclosure is achieved by the following technical solutions:

[0007] A battery end cover assembly comprises a base, the base is used to connect to a battery package body, a locking end surface of the base is provided with a first locking cavity, and the first locking cavity is used to lock or separate with a first lock assembly of a pipe seat;

[0008] The battery end cover assembly further comprises a second lock assembly, the second lock assembly comprises a mounting seat, a pressing piece and a movable lock tongue, the mounting seat is mounted on the base, the pressing piece is slidingly arranged in the mounting seat, and the pressing piece is exposed on the outer surface of the mounting seat; the movable lock tongue is elastically and slidingly arranged in the mounting seat, and the movable lock tongue is exposed on the locking end face and used for locking or separating from the second locking cavity of the pipe base; the pressing piece is used for driving the movable lock tongue to slide relative to the mounting seat when being pressed.

[0009] When the lock is opened, the first locking cavity is used for being separated from the first lock assembly, and the movable lock tongue is used for being separated from the second locking cavity; when the lock is locked, the first locking cavity is used for being locked with the first lock assembly, and the movable lock tongue is used for being locked with the second locking cavity.

[0010] In one of the embodiments, the mounting seat is provided with a sliding channel and a connecting through hole in communication, the movable lock tongue is arranged in the sliding channel and elastically connected with the mounting seat, and the pressing piece is arranged in the connecting through hole and slidingly connected with the movable lock tongue.

[0011] In one of the embodiments, the pressing piece is provided with a pressing inclined surface, the movable lock tongue is formed with a resisting inclined surface, and the pressing inclined surface and the resisting inclined surface slidingly abut; and / or,

[0012] The second lock assembly further comprises a first elastic piece, the first elastic piece is located in the sliding channel, one end of the first elastic piece is connected with the movable lock tongue, and the other end of the first elastic piece is connected with the inner wall of the mounting seat, so that the movable lock tongue and the mounting seat are elastically and slidingly connected.

[0013] In one of the embodiments, the second lock assembly further comprises a second elastic piece, the second elastic piece is sleeved on the pressing piece, one end of the second elastic piece is connected with the pressing piece, and the other end of the second elastic piece is fixed on the mounting seat.

[0014] In one of the embodiments, part of the pressing piece is located outside the base; the second lock assembly further comprises a fixing seat, the fixing seat is connected with the base, and the pressing piece is slidingly connected with the fixing seat.

[0015] In one of the embodiments, the fixing seat is provided with a pressing through hole in communication with the connecting through hole, the pressing piece is arranged in the pressing through hole and slidingly connected with the fixing seat, and the pressing piece extends to the sliding channel and slidingly connected with the movable lock tongue.

[0016] In one of the embodiments, the base is provided with a connecting through hole and a mounting cavity in communication, the pressing through hole is in communication with the mounting cavity and the through hole in communication, the fixing seat is located in the mounting cavity and fixedly connected with the base, and the pressing piece is also arranged in the through hole and slidably connected with the movable lock tongue.

[0017] The locking end face is also provided with a receiving cavity in communication with the through hole and the connecting through hole, and the mounting seat is located in the receiving cavity and fixedly connected with the base.

[0018] In one of the embodiments, the outer periphery of the pressing piece is provided with a limiting ring, the limiting ring is abutted against one side of the fixing seat adjacent to the mounting seat, and the second elastic piece is abutted against the limiting ring.

[0019] A power battery includes a battery pack, a pipe seat and the battery end cover assembly of any one of the embodiments, the base is connected to the battery pack, the first locking cavity is locked or separated from the first lock assembly of the pipe seat, and the movable lock tongue is locked or separated from the second locking cavity of the pipe seat.

[0020] In one of the embodiments, the pipe seat is provided with a guide sliding protrusion, the locking end face is also provided with a guide sliding channel, and the guide sliding protrusion is arranged in the guide sliding channel and slidably connected with the base.

[0021] Compared with the prior art, the present disclosure has at least the following advantages:

[0022] When unlocking, the user first drives the first lock assembly to separate from the first locking cavity by inserting a key, so that the first lock assembly is separated from the base, and the first lock is unlocked, at this time, the movable lock tongue is exposed on the locking end face, and is used for locking the second locking cavity of the pipe seat, so that the movable lock tongue is clamped with the pipe seat to fix the position of the battery pack, preventing the battery pack from falling accidentally; then, the user holds the battery pack with his hand and presses the pressing piece, the pressing piece is used to drive the movable lock tongue to slide relative to the mounting seat when pressed, so that the movable lock tongue is used to separate from the second locking cavity, so that the movable lock tongue is separated from the pipe seat, and the second lock is unlocked, and the user can take down the battery pack, so that the battery end cover assembly can better prevent the battery pack from falling accidentally; moreover, the movable lock tongue replaces the traditional elastic piece lock, and the structural strength of the movable lock tongue is higher than that of the elastic piece lock, so that the movable lock tongue can withstand greater impact force, so that the movable lock tongue is less likely to be damaged, and the cycle service life of the battery end cover assembly is longer. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present disclosure, and therefore should not be considered as a limitation to the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

[0024] Figure 1 A structural schematic diagram of a power battery according to an embodiment is shown in

[0025] Figure 2 A structural schematic diagram of a power battery according to an embodiment is shown in Figure 1 A structural schematic diagram of a power battery according to an embodiment is shown in

[0026] Figure 3 A structural schematic diagram of a power battery according to an embodiment is shown in Figure 2 A structural schematic diagram of a power battery according to an embodiment is shown in

[0027] Figure 4 A structural schematic diagram of a power battery according to an embodiment is shown in Figure 2 A structural schematic diagram of a power battery according to an embodiment is shown in

[0028] Figure 5 A structural schematic diagram of a power battery according to an embodiment is shown in Figure 2 A structural schematic diagram of a power battery according to an embodiment is shown in

[0029] Figure 6 A structural schematic diagram of a power battery according to an embodiment is shown in Figure 5 A structural schematic diagram of a power battery according to an embodiment is shown in

[0030] Figure 7 A structural schematic diagram of a power battery according to an embodiment is shown in Figure 5 A structural schematic diagram of a power battery according to an embodiment is shown in

[0031] Figure 8 A structural schematic diagram of a power battery according to an embodiment is shown in Figure 5 A structural schematic diagram of a power battery according to an embodiment is shown in

[0032] Figure 9 A structural schematic diagram of a power battery according to an embodiment is shown in Figure 8 A structural schematic diagram of a power battery according to an embodiment is shown in

[0033] Reference numerals: 10-Power battery; 10a-Battery end cap assembly; 100-Base; 110-Locking end face; 111-First locking cavity; 112-Storage cavity; 113-Guide sliding channel; 120-Allowing through hole; 130-Mounting cavity; 200-Second lock assembly; 210-Mounting seat; 211-Sliding channel; 212-Connecting through hole; 220-Pressing element; 221-Pressing inclined surface; 222-Limiting ring; 230-Movable locking tongue; 231-Abutting inclined surface; 240-First elastic element; 250-Second elastic element; 260-Fixing seat; 261-Pressing through hole; 300-Spring piece; 20a-Battery pack body; 30a-Vehicle tube seat; 301-First lock assembly; 302-Second locking cavity; 303-Guide sliding protrusion. Detailed Implementation

[0034] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] like Figures 1 to 9 As shown, a battery end cap assembly 10a in one embodiment includes a base 100 for connection to a battery pack 20a. The base 100 has a locking end face 110 with a first locking cavity 111 for locking or disengaging with a first locking assembly 301 of the vehicle tube seat 30a.

[0038] Further, the battery end cover assembly 10a further comprises a second lock assembly 200, the second lock assembly 200 comprises a mounting base 210, a pressing member 220 and a movable lock tongue 230, the mounting base 210 is mounted on the base 100, the pressing member 220 is slidingly arranged on the mounting base 210, and the pressing member 220 is exposed on the outer surface of the mounting base 210; the movable lock tongue 230 is elastically slidingly arranged on the mounting base 210, and the movable lock tongue 230 is exposed on the locking end surface 110 for locking or separating from the second locking cavity 302 of the pipe seat 30a; the pressing member 220 is used to drive the movable lock tongue 230 to slide relative to the mounting base 210 when pressed; when unlocking, the first locking cavity 111 is used to separate from the first lock assembly 301, and the movable lock tongue 230 is used to separate from the second locking cavity 302; when locking, the first locking cavity 111 is used to lock with the first lock assembly 301, and the movable lock tongue 230 is used to lock with the second locking cavity 302.

[0039] When unlocking, the user first drives the first lock assembly 301 to separate from the first locking cavity 111 by inserting the key, so that the first lock assembly 301 is separated from the base 100, and the first lock is unlocked, at this time, the movable lock tongue 230 is exposed on the locking end surface 110 for locking in the second locking cavity 302 of the pipe seat 30a, so that the movable lock tongue 230 is clamped with the pipe seat 30a for fixing the position of the battery pack 20a, preventing the battery pack 20a from falling accidentally; then, the user holds the battery pack 20a with hand and presses the pressing member 220, the pressing member 220 is used to drive the movable lock tongue 230 to slide relative to the mounting base 210 when pressed, so that the movable lock tongue 230 is used to separate from the second locking cavity 302, so that the movable lock tongue 230 is separated from the pipe seat 30a, and the second lock is unlocked, and the user can take down the battery pack 20a.

[0040] Of course, for the unlocking mode, it is not limited to the above unlocking scheme, and the second lock can be unlocked first, that is, the user first holds the battery pack 20a with hand and presses the pressing member 220, the pressing member 220 is used to drive the movable lock tongue 230 to slide relative to the mounting base 210 when pressed, so that the movable lock tongue 230 is used to separate from the second locking cavity 302, so that the movable lock tongue 230 is separated from the pipe seat 30a, and the second lock is unlocked, at this time, the first lock assembly 301 is locked with the first locking cavity 111, so that the first lock assembly 301 is locked with the base 100 for fixing the position of the battery pack 20a, preventing the battery pack 20a from falling accidentally; then, the user drives the first lock assembly 301 to separate from the first locking cavity 111 by inserting the key, so that the first lock assembly 301 is separated from the base 100, and the first lock is unlocked, and the user can take down the battery pack 20a.

[0041] Or, for the unlocking mode, the first lock and the second lock can be unlocked simultaneously. Further, the user inserts the key to drive the first lock assembly 301 to separate from the first locking cavity 111, so that the first lock assembly 301 is separated from the base 100, and the first lock is unlocked. At the same time, the user holds the battery pack 20a with hands and presses the pressing member 220, which is used to drive the movable lock tongue 230 to slide relative to the mounting seat 210 when pressed, so that the movable lock tongue 230 is used to separate from the second locking cavity 302, so that the movable lock tongue 230 is separated from the pipe seat 30a, the second lock is unlocked, and the user can remove the battery pack 20a. During the process that the user unlocks the first lock and the second lock simultaneously, the user holds the battery pack 20a with hands and presses the pressing member, so as to fix the position of the battery pack 20a and avoid the battery pack 20a from falling accidentally.

[0042] The above-mentioned battery end cover assembly 10a, when unlocking, the user first inserts the key to drive the first lock assembly 301 to separate from the first locking cavity 111, so that the first lock assembly 301 is separated from the base 100, and the first lock is unlocked. At this time, the movable lock tongue 230 is exposed to the locking end face 110, and is used to be locked in the second locking cavity 302 of the pipe seat 30a, so that the movable lock tongue 230 is clamped with the pipe seat 30a to fix the position of the battery pack 20a and prevent the battery pack 20a from falling accidentally. Then, the user holds the battery pack 20a with hands and presses the pressing member 220, which is used to drive the movable lock tongue 230 to slide relative to the mounting seat 210 when pressed, so that the movable lock tongue 230 is used to separate from the second locking cavity 302, so that the movable lock tongue 230 is separated from the pipe seat 30a, the second lock is unlocked, and the user can remove the battery pack 20a. Thus, the battery end cover assembly 10a can better prevent the battery pack 20a from falling accidentally. Moreover, the movable lock tongue 230 replaces the traditional spring 300 lock, and the structural strength of the movable lock tongue 230 is higher than that of the spring 300 lock, so that the movable lock tongue 230 can withstand greater impact force, and thus the movable lock tongue 230 is less likely to be damaged, and the cycle service life of the battery end cover assembly 10a is longer.

[0043] As shown in Figures 3 to 5 In one embodiment, the mounting seat 210 is provided with a sliding channel 211 and a connecting through hole 212 in communication, the movable lock tongue 230 is arranged in the sliding channel 211 and is in elastic sliding connection with the mounting seat 210, and the pressing member 220 is arranged in the connecting through hole 212 and is in sliding connection with the movable lock tongue 230. In this embodiment, the movable lock tongue 230 is in elastic sliding connection with the mounting seat 210, so that the use convenience of the movable lock tongue 230 is better.

[0044] As shown in Figures 7 to 9As shown in the drawings, in one of the embodiments, the pressing piece 220 is provided with a pressing slope 221, the movable lock tongue 230 is formed with a bearing slope 231, the pressing slope 221 and the bearing slope 231 slide against each other, the connecting area between the pressing piece 220 and the movable lock tongue 230 is increased, and the connecting reliability between the pressing piece 220 and the movable lock tongue 230 is improved.

[0045] As shown in the drawings, Figures 6 to 9 As shown in the drawings, in one of the embodiments, the second lock assembly 200 further comprises a first elastic piece 240, the first elastic piece 240 is located in the sliding channel 211, one end of the first elastic piece 240 is connected to the movable lock tongue 230, and the other end of the first elastic piece 240 is connected to the inner wall of the mounting seat 210, so that the movable lock tongue 230 and the mounting seat 210 are elastically and slidably connected. In this embodiment, the first elastic piece 240 is a spring, the movable lock tongue 230 and the mounting seat 210 are elastically and slidably connected, so that the movable lock tongue 230 is reset under the action of the first elastic piece 240, and the use convenience of the movable lock tongue 230 is improved.

[0046] As shown in the drawings, Figure 5 , Figures 7 to 9 As shown in the drawings, in one of the embodiments, the second lock assembly 200 further comprises a second elastic piece 250, the second elastic piece 250 is sleeved on the pressing piece 220, one end of the second elastic piece 250 is connected to the pressing piece 220, and the other end of the second elastic piece 250 is fixed to the mounting seat 210, so that the pressing piece 220 and the mounting seat 210 are elastically and slidably connected. In this embodiment, the second elastic piece 250 is a spring, the pressing piece 220 and the mounting seat 210 are elastically and slidably connected, so that the pressing piece 220 is reset under the action of the second elastic piece 250, and the use convenience of the pressing piece 220 is improved.

[0047] As shown in the drawings, Figure 3 and Figure 5 As shown in the drawings, in one of the embodiments, part of the pressing piece 220 is located outside the base 100; the second lock assembly 200 further comprises a fixing seat 260, the fixing seat 260 is connected to the base 100, and the pressing piece 220 and the fixing seat 260 are slidably connected. In this embodiment, the fixing seat 260 is fixedly connected to the base 100, so that the connecting stability between the fixing seat 260 and the base 100 is good.

[0048] As shown in the drawings, Figure 3 and Figure 5 As shown in the drawings, in one of the embodiments, the fixing seat 260 is provided with a pressing through hole 261 which is in communication with the connecting through hole 212, the pressing piece 220 is arranged in the pressing through hole 261 and slidably connected to the fixing seat 260, and the pressing piece 220 extends to the sliding channel 211 and slidably connected to the movable lock tongue 230, so that the use performance of the pressing piece 220 is good.

[0049] AsFigures 3 to 4 As shown in the drawings, in one embodiment, the base 100 is provided with a connecting through hole 120 and a mounting cavity 130, the pressing through hole 261 is in communication with the mounting cavity 130 and the through hole 120, the fixing seat 260 is located in the mounting cavity 130 and is fixedly connected with the base 100, the pressing piece 220 is also provided in the through hole 120 and is slidably connected with the movable lock tongue 230, so that the use performance of the pressing piece 220 is better.

[0050] The locking end face 110 is also provided with a receiving cavity 112, the receiving cavity 112 is in communication with the through hole 120 and the connecting through hole 212, and the mounting seat 210 is located in the receiving cavity 112 and is fixedly connected with the base 100, so that the connection stability between the mounting seat 210 and the base 100 is better.

[0051] As shown in the drawings, Figures 7 to 9 In one embodiment, the outer periphery of the pressing piece 220 is provided with a limiting ring 222, the limiting ring 222 abuts against one side of the fixing seat 260 adjacent to the mounting seat 210, and the second elastic piece 250 abuts against the limiting ring 222, so that the fixing seat 260 clamps the pressing piece 220, preventing the pressing piece 220 from being ejected from the pressing through hole 261 under the action of the second elastic piece 250, thereby making the structural stability of the second lock assembly 200 better.

[0052] As shown in the drawings, Figures 2 to 4 In one embodiment, the battery end cover assembly 10a further comprises a spring piece 300, the spring piece 300 is located in the first locking cavity 111 and is connected with the base 100, and the spring piece 300 is used for locking or separating with the first lock assembly 301, so that the connection convenience between the spring piece 300 and the first lock assembly 301 is better.

[0053] As shown in the drawings, Figures 1 to 9 The present disclosure also provides a power battery 10, comprising a battery pack 20a, a pipe seat 30a and the battery end cover assembly 10a of any one of the above embodiments, the base 100 is connected to the battery pack 20a, and the first locking cavity 111 is locked or separated with the first lock assembly 301 of the pipe seat 30a; the movable lock tongue 230 is locked or separated with the second locking cavity 302 of the pipe seat 30a.

[0054] As shown in the drawings, Figure 2 In one embodiment, the pipe seat 30a is provided with a guide sliding protrusion 303, the locking end face 110 is also provided with a guide sliding channel 113, the guide sliding protrusion 303 is provided in the guide sliding channel 113 and is slidably connected with the base 100, so that the pipe seat 30a and the base 100 can be reliably combined or separated.

[0055] Compared with the prior art, the present disclosure has at least the following advantages:

[0056] When unlocking, the user first drives the first lock assembly 301 to separate from the first locking cavity 111 by inserting the key, so that the first lock assembly 301 is separated from the base 100, and the first lock is unlocked. At this time, the movable lock tongue 230 is exposed to the locking end face 110, and is used for locking in the second locking cavity 302 of the pipe seat 30a, so that the movable lock tongue 230 is clamped with the pipe seat 30a to fix the position of the battery pack 20a, preventing the battery pack 20a from accidentally falling. Then, the user holds the battery pack 20a with his hand and presses the pressing piece 220. The pressing piece 220 is used to drive the movable lock tongue 230 to slide relative to the mounting seat 210 when pressed, so that the movable lock tongue 230 is used to separate from the second locking cavity 302, so that the movable lock tongue 230 is separated from the pipe seat 30a, and the second lock is unlocked. The user can then remove the battery pack 20a, so that the battery end cover assembly 10a can better prevent the battery pack 20a from accidentally falling. Moreover, the movable lock tongue 230 replaces the traditional spring sheet 300 lock. The structural strength of the movable lock tongue 230 is higher than that of the spring sheet 300 lock, so that the movable lock tongue 230 can withstand greater impact force, so that the movable lock tongue 230 is less likely to be damaged, thereby prolonging the cycle service life of the battery end cover assembly 10a.

[0057] The above-described embodiments only express several embodiments of the present disclosure, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the disclosed patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present disclosure, several modifications and improvements can be made, which are within the scope of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.

Claims

1. A battery end cover assembly, comprising a base for connecting to a battery pack, a locking end face of the base being provided with a first locking cavity for locking or separating with a first lock assembly of a handle tube base; characterized in that, the battery end cover assembly further comprises a second lock assembly, the second lock assembly comprising a mounting seat, a pressing piece and a movable lock tongue, the mounting seat being mounted on the base, the pressing piece being slidingly arranged in the mounting seat, the pressing piece being exposed on an outer surface of the mounting seat; the movable lock tongue is elastically slidingly arranged in the mounting seat, the movable lock tongue being exposed on the locking end face for locking or separating with a second locking cavity of the handle tube base; the pressing piece is used to drive the movable lock tongue to slide relative to the mounting seat when pressed; when unlocking, the first locking cavity is used to separate with the first lock assembly, and the movable lock tongue is used to separate with the second locking cavity; when locking, the first locking cavity is used to lock with the first lock assembly, and the movable lock tongue is used to lock with the second locking cavity.

2. The battery end cap assembly of claim 1, wherein, the mounting seat is provided with a sliding channel and a connecting through hole in communication, the movable lock tongue is arranged in the sliding channel and is elastically slidingly connected with the mounting seat, the pressing piece is movably arranged in the connecting through hole, and the pressing piece is slidingly connected with the movable lock tongue.

3. The battery end cap assembly of claim 2, wherein, the pressing piece is provided with a pressing inclined surface, the movable lock tongue is formed with a resisting inclined surface, and the pressing inclined surface and the resisting inclined surface slidingly abut; and / or, the second lock assembly further comprises a first elastic member, the first elastic member being located in the sliding channel, one end of the first elastic member being connected with the movable lock tongue, and the other end of the first elastic member being connected with an inner wall of the mounting seat, so that the movable lock tongue and the mounting seat are elastically slidingly connected.

4. The battery end cap assembly of any one of claims 2-3, wherein, the second lock assembly further comprises a second elastic member, the second elastic member being sleeved on the pressing piece, one end of the second elastic member being connected with the pressing piece, and the other end of the second elastic member being fixed to the mounting seat.

5. The battery end cap assembly of claim 4, wherein, part of the pressing piece is located outside the base; the second lock assembly further comprises a fixed seat, the fixed seat being connected with the base, and the pressing piece being slidingly connected with the fixed seat.

6. The battery end cap assembly of claim 5, wherein, the fixed seat is provided with a pressing through hole in communication with the connecting through hole, the pressing piece is arranged in the pressing through hole and is slidingly connected with the fixed seat, and the pressing piece extends into the sliding channel and is slidingly connected with the movable lock tongue.

7. The battery end cap assembly of claim 6, wherein, the base is provided with an avoiding through hole and a mounting cavity in communication, the pressing through hole is in communication with the mounting cavity and the avoiding through hole respectively, the fixed seat is located in the mounting cavity and is fixedly connected with the base, and the pressing piece is further arranged in the avoiding through hole and is slidingly connected with the movable lock tongue; the locking end face is further provided with a receiving cavity, the receiving cavity is in communication with the avoiding through hole and the connecting through hole respectively, and the mounting seat is located in the receiving cavity and is fixedly connected with the base.

8. The battery end cap assembly of claim 6, wherein, an outer periphery of the pressing piece is provided with a limiting ring, the limiting ring abuts against one side of the fixed seat adjacent to the mounting seat, and the second elastic member abuts against the limiting ring.

9. A power cell, characterized by The battery end cover assembly comprises a battery pack, a pipe base and the battery end cover assembly of any one of claims 1-8, the base is connected to the battery pack, the first locking cavity is locked or separated with the first locking assembly of the pipe base; the movable locking tongue is locked or separated with the second locking cavity of the pipe base.

10. The power cell of claim 9, wherein, The pipe base is provided with a sliding guide protrusion, the locking end face is further provided with a sliding guide channel, the sliding guide protrusion is arranged in the sliding guide channel and is in sliding connection with the base.

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