Electric tool battery pack with batteries convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of battery pack parts, and discloses an electric tool battery pack convenient for disassembling and assembling a battery, which comprises a shell, a battery cell module, a buckling part and a locking part, the shell comprises an upper shell and a lower shell; the lower shell is arranged below the upper shell; the battery cell module comprises a left bracket and a right bracket, and the left bracket and the right bracket are distributed in the lower shell left and right; the buckling part is arranged between the left bracket and the right bracket; the buckling part comprises a plurality of groups of fixing holes and buckles; the multiple sets of fixing holes are distributed in the top of the side wall of the left support at equal intervals. The buckles are arranged at the top of the side wall of the right support. The fixing holes are buckled and connected with the buckles; the locking part is arranged on the upper shell and used for limiting and abutting against the bottom end of the electric tool; the buckle comprises an elastic part and a protruding block part, the elastic part is obliquely arranged on the right support, and the protruding block part is arranged at one end of the elastic part. And when the buckle is buckled with the fixing hole, the top surface of the bump part is higher than the top surface of the fixing hole.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack parts, in particular to an electric tool battery pack which is convenient for disassembling and assembling batteries. Background Technique

[0002] An electric tool is a tool driven by electric energy, which has the characteristics of high efficiency and convenience, is deeply loved by users, and is widely used in various fields.

[0003] At present, cordless electric tools often use a battery cell group with high energy density as the electric tool battery pack to supply power to the electric tool. For example, in the Chinese patent document with the publication number CN219759821U and the patent name "An Electric Tool Battery Pack", it is mentioned that "it includes a bottom shell and a top cover. A receiving cavity is formed by combining the bottom shell and the top cover. A battery cell group is arranged inside the receiving cavity. One end of the top cover is provided with a button and a lock. A connecting rib is arranged between the button and the lock. Several sinking grooves are formed in the middle of the lock. Several upward protruding buckling columns are arranged inside the sinking grooves. The bottom end of the buckling column is rotatably connected inside the sinking groove. The top end of the buckling column is a slope inclined away from the button. Pushing the slope towards the button makes the slope rotatably embedded into the sinking groove inside", this structure solves the problem that the lock is prone to jamming and can ensure smooth installation between the battery pack and the electric tool. However, in the above patent, the battery is fixed by a left bracket and a right bracket. When replacing the battery, external tools are often used to disassemble the left bracket and the right bracket, and then the battery is replaced. The replacement steps are complex and not conducive to user use.

[0004] Therefore, there is an urgent need for an electric tool battery pack that is convenient for disassembling and assembling batteries to solve the above problems. Content of the Utility Model

[0005] Based on the above, the purpose of the utility model is to provide an electric tool battery pack that is convenient for disassembling and assembling batteries, so as to solve the problem that when replacing the battery in the existing battery pack, external tools are often used to disassemble the left bracket and the right bracket, and then the battery is replaced, and the replacement steps are complex.

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

[0007] An electric tool battery pack facilitating battery disassembly and assembly, comprising a housing, a battery cell module, a fastening component, and a locking component; the housing includes an upper housing and a lower housing; the lower housing is disposed below the upper housing; the battery cell module includes a left bracket and a right bracket, and the left bracket and the right bracket are distributed left and right within the lower housing; the fastening component is disposed between the left bracket and the right bracket; the fastening component includes multiple groups of fixing holes and buckles; multiple groups of the fixing holes are equally spaced and distributed at the top of the side wall of the left bracket; multiple groups of the buckles are disposed at the top of the side wall of the right bracket; the fixing holes and the buckles are fastened and connected; the locking component is disposed on the upper housing for limiting and abutting against the bottom end of the electric tool; the buckle includes an elastic part and a convex part, the elastic part is obliquely disposed on the right bracket, and the convex part is disposed at one end of the elastic part; when the buckle is fastened to the fixing hole, the top surface of the convex part is higher than the top surface of the fixing hole.

[0008] As a preferred solution of an electric tool battery pack facilitating battery disassembly and assembly, the top surface of the convex part is higher than the top surface of the elastic part; a vertically arranged first connection surface is provided between the convex part and the elastic part; when the buckle is fastened to the fixing hole, the first connection surface coincides with the side surface of the fixing hole.

[0009] As a preferred solution of an electric tool battery pack facilitating battery disassembly and assembly, the top surface of the convex part, the first connection surface, and the top surface of the elastic part form a stepped structure; the top surface of the convex part is provided with a first inclined surface.

[0010] As a preferred solution of an electric tool battery pack facilitating battery disassembly and assembly, a downwardly concave limiting groove is provided at the top end of the left bracket; a limiting block corresponding to the limiting groove is provided at the top end of the right bracket.

[0011] As a preferred solution of an electric tool battery pack facilitating battery disassembly and assembly, installation grooves for battery installation are provided inside both the left bracket and the right bracket; limiting parts for battery limitation are provided on both the left bracket and the right bracket.

[0012] As a preferred solution of an electric tool battery pack facilitating battery disassembly and assembly, a buffer seat is provided inside the lower housing; multiple groups of equally spaced heat dissipation holes are provided at the bottom end of the lower housing, and multiple groups of the heat dissipation holes are located below the buffer seat.

[0013] As a preferred solution of an electric tool battery pack facilitating battery disassembly and assembly, the buffer seat includes a buffer layer and a heat conduction layer; the buffer layer is disposed between the battery cell module and the lower housing; multiple groups of downwardly concave fixing grooves are provided on the top surface of the buffer layer; multiple groups of equally spaced air permeation holes are provided inside the buffer layer; the heat conduction layer is disposed between the buffer layer and the heat dissipation holes.

[0014] As a preferred solution for a battery pack of a power tool that facilitates battery disassembly and assembly, the locking member includes a button and a latch; the button is provided on one side of the upper housing, and two sets of outwardly extending convex plates are provided in the center of the button; limiting plates extending outward are provided on both sides of the button, and a clamping block that is clamped with the upper housing is provided at the end of the limiting plate; the latch is provided on the upper housing and is located between the two sets of convex plates; a rotating shaft is provided at the bottom end of the latch, and the rotating shaft is rotatably connected to the convex plate; a spring is provided between one end of the rotating shaft and the upper housing.

[0015] As a preferred solution for a battery pack of a power tool that facilitates battery disassembly and assembly, an outwardly extending connecting portion is provided at the bottom end of the rotating shaft, and one end of the connecting portion is arc-shaped; an abutting portion is provided at one end of the convex plate, and the abutting portion abuts against the connecting portion.

[0016] As a preferred solution for a battery pack of a power tool that facilitates battery disassembly and assembly, a first through hole and a second through hole are provided on the upper housing; the first through hole is provided on one side of the upper housing, and the button is slidably connected in the first through hole; the second through hole is provided inside the first through hole, and the latch is slidably connected in the second through hole.

[0017] The beneficial effects of the present utility model are as follows:

[0018] By providing a fastening member, when replacing the battery, the user presses the convex block portion, and pulls the protruding portion and the elastic portion out of the fixing hole, thereby realizing the quick disassembly between the left bracket and the right bracket, and then replacing the battery, simplifying the disassembly steps of the left bracket and the right bracket, without the need to rely on external tools, and improving the battery replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a battery pack of a power tool that facilitates battery disassembly and assembly provided by the present utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the left bracket and the right bracket provided by the present utility model;

[0021] Figure 3 It is Figure 2 an enlarged schematic diagram of A in

[0022] Figure 4 It is a schematic diagram of the overall structure of the locking member provided by the present utility model;

[0023] Figure 5 It is a schematic diagram of the overall structure of the upper housing provided by the present utility model;

[0024] Figure 6 It is a schematic diagram of the overall structure of the lower housing provided by the present utility model;

[0025] Figure 7 For Figure 6 an enlarged schematic diagram of B in

[0026] Among them, the reference numerals in the figure are as follows:

[0027] 10. Upper shell; 101. First through hole; 102. Second through hole; 11. Lower shell; 12. Buffer seat; 121. Buffer layer; 122. Heat conduction layer; 123. Ventilation hole; 124. Fixed groove; 13. Heat dissipation hole; 21. Left bracket; 22. Right bracket; 23. Limiting groove; 24. Limiting block; 25. Installation groove; 26. Limiting part; 30. Fixed hole; 31. Buckle; 311. Elastic part; 312. Convex part; 32. First connection surface; 33. First inclined surface; 40. Locking member; 41. Button; 411. Convex plate; 412. Limiting plate; 413. Block; 414. Abutting part; 42. Lock; 421. Rotating shaft; 422. Connecting part; 43. Spring. Specific embodiments

[0028] The following further describes the present utility model in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model rather than all structures are shown in the drawings.

[0029] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but are in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is at a lower horizontal height than the second feature.

[0031] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0032] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] In an embodiment of the present utility model, as Figures 1-7 shown, there is provided a power tool battery pack facilitating battery disassembly and assembly, including a housing, a battery cell module, a fastening component, and a locking component 40. The housing includes an upper housing 10 and a lower housing 11. The lower housing 11 is disposed below the upper housing 10. The battery cell module includes a left bracket 21 and a right bracket 22. The left bracket 21 and the right bracket 22 are distributed left and right within the lower housing 11. The fastening component is disposed between the left bracket 21 and the right bracket 22. The fastening component includes multiple groups of fixing holes 30 and buckles 31. The multiple groups of fixing holes 30 are equally spaced and distributed at the top of the side wall of the left bracket 21. The multiple groups of buckles 31 are disposed at the top of the side wall of the right bracket 22. The fixing holes 30 and the buckles 31 are fastened and connected. The locking component 40 is disposed on the upper housing 10 and is used for limiting and abutting against the bottom end of the power tool. The buckle 31 includes an elastic portion 311 and a bump portion 312. The elastic portion 311 is inclinedly disposed on the right bracket 22, and the bump portion 312 is disposed at one end of the elastic portion 311. When the buckle 31 is fastened to the fixing hole 30, the top surface of the bump portion 312 is higher than the top surface of the fixing hole 30.

[0034] In this embodiment, the elastic portion 311 is a spring piece or a square bar made of elastic material. When the buckle 31 and the fixing hole 30 are fastened, under the action of the elastic portion 311, the top of the bump portion 312 is always higher than the top surface of the fixing hole 30, so that the bump portion 312 abuts against the left bracket 21 above the fixing hole 30, making it difficult for the bump portion 312 to disengage from the fixing hole 30, and thus enabling the left bracket 21 and the right bracket 22 to be firmly connected.

[0035] By providing the fastening component, when replacing the battery, the user presses the bump portion 312 to withdraw the protruding portion and the elastic portion 311 from the fixing hole 30, thereby realizing the rapid disassembly between the left bracket 21 and the right bracket 22. Then, the battery can be replaced, simplifying the disassembly steps of the left bracket 21 and the right bracket 22, without the need to rely on external tools, and improving the battery replacement efficiency.

[0036] Preferably, the top surface of the bump portion 312 is higher than the top surface of the elastic portion 311. A first connecting surface 32 is vertically provided between the bump portion 312 and the elastic portion 311. When the buckle 31 is engaged with the fixing hole 30, the first connecting surface 32 coincides with the side surface of the fixing hole 30. When the buckle 31 and the fixing hole 30 are engaged, under the action of the elastic portion 311, the top of the bump portion 312 is always higher than the top surface of the fixing hole 30, so that the first connecting surface 32 on the bump portion 312 abuts against the left bracket 21 at the upper part of the fixing hole 30, making it difficult for the bump portion 312 to disengage from the fixing hole 30, and further enabling the left bracket 21 and the right bracket 22 to be firmly connected.

[0037] Furthermore, the top surface of the bump portion 312, the first connecting surface 32 and the top surface of the elastic portion 311 form a stepped structure. The top surface of the bump portion 312 is provided with a first inclined surface 33. By providing the first inclined surface 33, when the buckle 31 enters the fixing hole 30, under the action of the first inclined surface 33, the bump portion 312 of the buckle 31 has a tendency to move towards the inside of the fixing hole 30, enabling the buckle 31 to be smoothly engaged in the fixing hole 30 and simplifying the engagement steps between the buckle 31 and the fixing hole 30.

[0038] Preferably, a downwardly recessed limiting groove 23 is provided at the top end of the left bracket 21. A limiting block 24 corresponding to the limiting groove 23 is provided at the top end of the right bracket 22. By providing the limiting groove 23 and the limiting block 24, it plays a role in preventing misassembly when the left bracket 21 and the right bracket 22 are installed with each other, avoiding incorrect installation positions of the two.

[0039] Preferably, installation grooves 25 for battery installation are provided in both the left bracket 21 and the right bracket 22. Limiting portions 26 for battery limiting are provided on both the left bracket 21 and the right bracket 22. By providing the limiting portions 26, the battery is installed in the installation groove 25 and limited by the limiting portions 26 at both ends, preventing the battery from falling out of the installation groove 25 and affecting the normal operation of the battery pack.

[0040] In this embodiment, the battery cell module includes a circuit board and multiple groups of metal connecting pieces. The circuit board is provided above the left bracket 21 and the right bracket 22. Multiple groups of metal connecting pieces are respectively equidistantly distributed at both ends of the left bracket 21 and the right bracket 22 and are connected to the circuit board, and the battery in the left bracket 21 and the right bracket 22 is connected through the metal connecting pieces, thereby realizing the power supply of the circuit board.

[0041] Preferably, a buffer seat 12 is provided in the lower housing 11. Multiple groups of equally spaced heat dissipation holes 13 are provided at the bottom end of the lower housing 11, and the multiple groups of heat dissipation holes 13 are located below the buffer seat 12. By providing the buffer seat 12, it plays a role in protecting and buffering the battery cell module, preventing the battery cell module from being damaged due to external impact, and also by providing the heat dissipation holes 13, the heat generated during the operation of the battery cell module is dissipated, avoiding overheating of the battery cell module and affecting its normal operation.

[0042] Specifically, the buffer seat 12 includes a buffer layer 121 and a heat conduction layer 122. The buffer layer 121 is provided between the battery cell module and the lower housing 11. The top surface of the buffer layer 121 is provided with multiple groups of downwardly recessed fixing grooves 124. Multiple groups of equally spaced ventilation holes 123 are provided in the buffer layer 121. The heat conduction layer 122 is provided between the buffer layer 121 and the heat dissipation holes 13. In this embodiment, the fixing grooves 124 correspond to the arc-shaped portions at the bottoms of the left bracket 21 and the right bracket 22. By providing the fixing grooves 124 and the buffer layer 121, the buffer layer 121 buffers the impact force on the battery cell module to prevent the battery cell module from being damaged, and the fixing grooves 124 also limit and fix the bottoms of the left bracket 21 and the right bracket 22, improving the stability of the battery cell module in the housing. At the same time, by providing the heat conduction layer 122 and the ventilation holes 123, the heat generated when the battery cell module works is transmitted into the heat conduction layer 122 through the ventilation holes 123, and then the heat is quickly transmitted into the heat dissipation holes 13 through the heat conduction layer 122 and discharged from the heat dissipation holes 13, improving the heat dissipation effect of the battery pack.

[0043] Preferably, the locking component 40 includes a button 41 and a lock catch 42. The button 41 is provided on one side of the upper housing 10. Two groups of outwardly extending convex plates 411 are provided in the center of the button 41. Limiting plates 412 extending outward are provided on both sides of the button 41, and catch blocks 413 for engaging with the upper housing 10 are provided at the ends of the limiting plates 412. The lock catch 42 is provided on the upper housing 10 and is located between the two groups of convex plates 411. A rotating shaft 421 is provided at the bottom end of the lock catch 42, and the rotating shaft 421 is rotatably connected to the convex plates 411. A spring 43 is provided between one end of the rotating shaft 421 and the upper housing 10. When disassembling the battery pack and the power tool, by pressing the button 41, the convex plates 411 of the button 41 drive the rotating shaft 421 to rotate, and the rotating shaft 421 drives the top end of the lock catch 42 to rotate downward, so that the top end of the lock catch 42 disengages from the bottom end of the power tool, thereby realizing the disassembly of the battery pack and the power tool, simplifying the disassembly steps and improving the disassembly efficiency.

[0044] Further, an outwardly extending connecting portion 422 is provided at the bottom end of the rotating shaft 421, and one end of the connecting portion 422 is arc-shaped. An abutting portion 414 is provided at one end of the convex plate 411, and the abutting portion 414 abuts against the connecting portion 422. A first through hole 101 and a second through hole 102 are provided on the upper housing 10. The first through hole 101 is provided on one side of the upper housing 10, and the button 41 is slidably connected in the first through hole 101. The second through hole 102 is provided inside the first through hole 101, and the lock catch 42 is slidably connected in the second through hole 102. When disassembling the battery pack and the power tool, by pressing the button 41, the abutting portion 414 of the button 41 moves inward horizontally, and the abutting portion 414 presses the connecting portion 422, causing the connecting portion 422 to rotate downward along the abutting portion 414, so that the rotating shaft 421 drives the lock catch 42 to rotate downward, thereby realizing the disassembly of the battery pack and the power tool, simplifying the disassembly steps and improving the disassembly efficiency.

[0045] As described above, it is only a preferred embodiment of the present utility model, and there is no restriction on the present utility model in any form. Although the present utility model is disclosed as above with a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art, without departing from the scope of the technical solution of the present utility model, when making some changes or modifications using the above-disclosed technical content to equivalent embodiments of equivalent changes, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the present utility model all fall within the scope of the technical solution of the present utility model.

Claims

1. An electric tool battery pack facilitating battery disassembly and assembly, characterized in that, Comprising: A housing including an upper housing and a lower housing; the lower housing is disposed below the upper housing; A battery cell module including a left bracket and a right bracket, with the left bracket and the right bracket distributed left and right within the lower housing; A fastening component disposed between the left bracket and the right bracket; the fastening component includes multiple groups of fixing holes and buckles; multiple groups of the fixing holes are equidistantly distributed at the top of the side wall of the left bracket; multiple groups of the buckles are disposed at the top of the side wall of the right bracket; the fixing holes and the buckles are fastened and connected; A locking component disposed on the upper housing for limiting and abutting against the bottom end of the power tool; Wherein, the buckle includes an elastic portion and a convex portion, the elastic portion is obliquely disposed on the right bracket, and the convex portion is disposed at one end of the elastic portion; when the buckle is fastened to the fixing hole, the top surface of the convex portion is higher than the top surface of the fixing hole.

2. The battery pack for an electric tool facilitating disassembly and assembly of a battery according to claim 1, wherein, The top surface of the convex portion is higher than the top surface of the elastic portion; a vertically arranged first connection surface is provided between the convex portion and the elastic portion; when the buckle is fastened to the fixing hole, the first connection surface coincides with the side surface of the fixing hole.

3. The battery pack for an electric tool facilitating disassembly and assembly of a battery according to claim 2, wherein, The top surface of the convex portion, the first connection surface, and the top surface of the elastic portion form a stepped structure; the top surface of the convex portion is provided with a first inclined surface.

4. The battery pack for an electric tool facilitating disassembly and assembly of a battery according to claim 1, wherein, A downwardly concave limiting groove is provided at the top end of the left bracket; a limiting block corresponding to the limiting groove is provided at the top end of the right bracket.

5. The battery pack for a power tool facilitating battery disassembly and assembly according to claim 1, characterized in that Installation grooves for battery installation are provided inside both the left bracket and the right bracket; limiting portions for battery limitation are provided on both the left bracket and the right bracket.

6. The battery pack for a power tool facilitating battery disassembly and assembly according to claim 1, wherein, A buffer seat is provided inside the lower housing; multiple groups of equidistantly distributed heat dissipation holes are provided at the bottom end of the lower housing, and the multiple groups of heat dissipation holes are located below the buffer seat.

7. The battery pack for a power tool facilitating disassembly and assembly of a battery according to claim 6, wherein, The buffer seat includes a buffer layer and a heat conducting layer; the buffer layer is disposed between the battery cell module and the lower housing; multiple groups of downwardly concave fixing grooves are provided on the top surface of the buffer layer; multiple groups of equidistantly distributed air permeation holes are provided inside the buffer layer; the heat conducting layer is disposed between the buffer layer and the heat dissipation holes.

8. The battery pack for an electric tool facilitating disassembly and assembly of a battery according to any one of claims 1-7, characterized in that, The locking component includes a button and a lock; the button is disposed on one side of the upper housing, and two groups of outwardly extending convex plates are provided in the center of the button; limiting plates are provided on both sides of the button, and a clamping block for clamping with the upper housing is provided at the end of the limiting plate; the lock is disposed on the upper housing and is located between the two groups of convex plates; a rotating shaft is provided at the bottom end of the lock, and the rotating shaft is rotatably connected to the convex plate; a spring is provided between one end of the rotating shaft and the upper housing.

9. The battery pack for a power tool facilitating battery disassembly and assembly according to claim 8, wherein, An outwardly extending connecting portion is provided at the bottom end of the rotating shaft, and one end of the connecting portion is arc-shaped; an abutting portion is provided at one end of the convex plate, and the abutting portion abuts against the connecting portion.

10. The battery pack for an electric tool facilitating disassembly and assembly of a battery according to claim 9, characterized in that, A first through hole and a second through hole are provided on the upper housing; the first through hole is disposed on one side of the upper housing, and the button is slidably connected within the first through hole; the second through hole is disposed inside the first through hole, and the lock is slidably connected within the second through hole.

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