An electric tool housing and an electric tool having the same

By designing a mounting part that is integrally formed with the power tool housing, combining the sliding lock and latch part, and improving electrical connection and sealing through the L-shaped terminal hole and sealing gasket, poor fixation and sealing of the power tool battery pack are solved. The problem of insufficient sexuality enables more stable and durable power tools.

CN111113338BActive Publication Date: 2025-02-21ZHEJIANG LERA NEW ENERGY POWER TECH CO LTD
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Patent Information

Application Number
CN201911229078.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-12-04
Publication Date
2025-02-21
Estimated Expiration
2039-12-04

AI Technical Summary

Technical Problem

The battery pack installation device of existing power tools is not firm enough, resulting in poor fixing of the battery pack, and there is also the problem of insufficient sealing, which affects the service life of the power tools, and it is not convenient for users to disassemble and assemble the battery pack.

Method used

A power tool housing is designed, and its mounting part is integrally formed with the housing main body, adopting a structure that combines a sliding lock and a latch. The electrical connection terminal passes through the L-shaped terminal hole to ensure the electrical connection is stable and at the connection base A gasket is clamped between the inner walls of the outer shell to improve sealing.

Benefits of technology

It realizes the stable fixation of the battery pack and better sealing, waterproof and dustproof effect. At the same time, users can disassemble and assemble the battery pack more easily, improving the service life and user experience of the power tool.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an electric tool housing and an electric tool having the electric tool housing, and relates to the technical field of electric tools, comprising: a housing body; a mounting portion suitable for configuring and installing a battery pack, comprising a sliding portion and a latch portion that correspond to the sliding lock buckle of the battery pack and form an integrated structure, and a wall surface opposite to the battery pack; the mounting portion is integrally formed with the housing body, the mounting portion has and only has a terminal hole suitable for an electrical connection terminal to pass through, and the terminal hole passes through the wall surface, the terminal hole is in an "L" shape, and comprises a first portion passing through the wall surface and a second portion passing through a step surface adjacent to the wall surface, a part of the electrical connection terminal extends through the first portion corresponding thereto, and the other part extends and is inserted into the second portion corresponding thereto and abuts against the second portion; the mounting portion on the electric tool housing of the present invention is integrally formed with the housing body, and the overall structure is seamlessly designed, and through the design of the sealing gasket, it can achieve better waterproof and dustproof effects.
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Description

Technical Field

[0001] The present invention relates to the technical field of electric tools, in particular to an electric tool housing and an electric tool having the electric tool housing. Background Art

[0002] In order to improve the versatility of power tools and make the working range of power tools not limited by the location of the socket, many power tools on the market are powered by battery packs. Power tools are easy to carry, simple to operate, and have multiple functions. They can greatly reduce labor intensity, improve work efficiency, and realize mechanization of manual operations. Therefore, they are widely used in construction, housing decoration, automobiles, machinery, electricity, bridges, gardening and other fields, and have entered households in large numbers. For power tools, the suitability of the battery pack and whether the assembly is firm are crucial to the power tools. The existing power tool battery pack installation device is generally fixed directly on the power tool, so the battery pack cannot be conveniently replaced. At the same time, since the battery pack and the power tool cannot be well sealed during installation, water or dust is easy to enter the power tool, affecting the service life of the power tool. Summary of the invention

[0003] 1. Technical issues to be solved

[0004] The present invention is aimed at the above-mentioned defects existing in the prior art, and specifically proposes an electric tool housing and an electric tool having the electric tool housing, so as to solve the problem that the battery pack socket of the prior electric tool is not firm enough and the fixing effect of the battery pack is not good. At the same time, it also solves the problem of sealing, waterproofing and dustproofing of the electric tool, and further solves the problem that it is not convenient for users to disassemble and assemble the battery pack.

[0005] 2. Technical Solution

[0006] In order to solve the above-mentioned technical problems, the present invention provides an electric tool housing, comprising: a housing main body; a mounting portion suitable for configuring and installing a battery pack, which includes a sliding portion and a latch portion that correspond to the sliding lock buckle of the battery pack and form an integrated structure, and a wall surface opposite to the battery pack; and the mounting portion is integrally formed with the housing main body.

[0007] The mounting portion has and is only provided with a terminal hole suitable for the electrical connection terminal to pass through, and the terminal hole passes through the wall surface.

[0008] Among them, the terminal hole is in an "L" shape, which includes a first part passing through the wall and a second part passing through the step surface adjacent to the wall. A part of the electrical connection terminal extends through the first part corresponding to it, and the other part extends and inserts into the second part corresponding to it and abuts against the second part.

[0009] The power tool housing includes a first housing and a second housing fixedly connected to each other, the mounting parts on the two housings correspond to each other, and a limiting connection part suitable for limiting the installation of the electrical connection socket is formed between the mounting parts and located in the inner cavity of the power tool housing.

[0010] The present invention also includes an electric tool adopting the above-mentioned electric tool housing, including an electrical connection socket, the electrical connection socket including a connection socket and an electrical connection terminal fixedly connected to the connection socket, the connection socket is limitedly connected in the inner cavity of the electric tool housing, and the electrical connection terminal extends toward a terminal hole provided on the mounting portion and passes through the terminal hole.

[0011] Wherein, a sealing gasket surrounding the electrical connection terminal is sandwiched between the connection seat and the inner wall of the electric tool housing.

[0012] The electrical connection seat can also adopt the following structure, which includes an integrated connection seat and electrical connection terminals fixedly connected to opposite sides of the integrated connection seat, the integrated connection seat is limitedly connected to the limit connection part, and the electrical connection terminals extend respectively to the terminal holes set on the mounting part and pass through the terminal holes.

[0013] The latch portion is located on the sliding path or wall of the sliding portion; the electrical connection terminal passes through the terminal hole located on the mounting portion;

[0014] A battery pack, which matches with the sliding part and slides along its sliding path;

[0015] When the battery pack slides to form an insertion connection with the electrical connection terminal, the latch of the battery pack is locked with the latch part, and the latch is linked with the button of the battery pack. When the button is pressed, the latch separates from the latch part to release the battery pack.

[0016] The button includes a first button and a second button located on opposite sides thereof, the first button and the second button squeeze each other to drive the latch to move, the shell body includes an outer edge suitable for at least partially wrapping the battery pack; when the power tool is horizontal to the ground, the button at least partially protrudes from the outer edge.

[0017] The line connecting the first vertex and the second vertex adjacent to the outer edge and the first button and the second button respectively is parallel or substantially parallel to the vertex tangent line of the battery pack.

[0018] There is a vertical distance H between the vertex tangent line and the connecting line, and the vertical distance H is greater than or equal to 30 mm.

[0019] The button includes a first button and a second button located on opposite sides thereof, the first button and the second button are squeezed toward each other to drive the latch to move, the shell body includes an outer edge suitable for at least partially wrapping the battery pack; the vertical distance from the vertex of the outer edge to the surface tangent a of the button adjacent thereto is L, and the vertical distance L is greater than or equal to 15 mm.

[0020] When the electric tool is horizontally placed on the ground, the button at least partially protrudes from the apex of the peripheral edge.

[0021] The outer edge includes an inclined portion extending downward along the vertex toward the button, and the extending plane of the inclined portion and the horizontal cutting plane of the button adjacent thereto are combined to form a pressing operation space of the button.

[0022] When the electric tool is horizontally placed on the ground, the button is partially hidden by the inclined portion when viewed from directly behind the electric tool.

[0023] 3. Beneficial Effects

[0024] Compared with the prior art, the mounting portion on the power tool housing of the present invention is integrally formed with the housing body, and the overall structure is seamlessly designed, which has stronger stability and stronger shock resistance, and can be applied to power tools with single battery packs and dual battery packs. At the same time, a sealing gasket surrounding the electrical connection terminal is sandwiched between the connection seat and the inner wall of the power tool housing, which can achieve better waterproof and dustproof effects.

[0025] The terminal hole is set to an L-shaped structure, so that the electrical connection terminal can be supported by two sides, the connection is more stable, and through the cooperation between the latch on the battery pack and the latch part, the battery pack can be unlocked by pressing a button, which is more convenient for users to use;

[0026] Furthermore, the utility model sets an inclined portion on the outer edge of the shell body, sets the vertical distance from the vertex of the outer edge to the surface tangent of the button adjacent to it, and sets the vertical distance between the line connecting the vertices of the outer edge and the vertex tangent of the battery pack, so that the button of the battery pack protrudes, leaving sufficient space for pressing on both sides of the button, which can be more convenient for users to press and facilitate users to operate and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional diagram of the electric tool of the present invention;

[0028] Figure 2 is a three-dimensional diagram of the housing of the electric tool of the present invention;

[0029] Figure 3 It is a three-dimensional exploded view of the housing of the electric tool of the present invention;

[0030] Figure 4 The electric tool of the present invention is Figure 1 ;

[0031] Figure 5 The electric tool of the present invention is Figure 2 ;

[0032] Figure 6is a three-dimensional diagram of a battery pack of the present invention;

[0033] In the figure: 1 is the shell body; 2 is the mounting part; 3 is the battery pack; 4 is the electrical connection seat; 11 is the sliding part; 12 is the latch part; 13 is the wall; 14 is the terminal hole; 15 is the first part; 16 is the second part; 17 is the first vertex; 18 is the second vertex; 19 is the inclined part; 20 is the first shell; 21 is the second shell; 22 is the button; 23 is the electrical connection terminal; 24 is the latch. DETAILED DESCRIPTION

[0034] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] Embodiment 1:

[0036] An electric tool housing according to an embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, it includes: a shell body 1; a mounting portion 2 suitable for configuring and mounting a battery pack 3, which includes a sliding portion 11 and a latch portion 12 that correspond to the sliding lock buckle of the battery pack 3 and form an integrated structure, and a wall 13 opposite to the battery pack 3; and in this embodiment, the mounting portion 2 is integrally formed with the shell body 1, and on the battery pack 3 matching this embodiment, the battery pack 3 can match the sliding portion 11 and slide along its sliding path, specifically, by locking the latch 24 of the battery pack 3 with the latch portion 12, the latch 24 is linked with the button 22 of the battery pack 3, pressing the button 22, the latch 24 is separated from the latch portion 12 to release the battery pack 3, thereby realizing convenient and reliable installation of the battery pack 3 on the power tool shell, and the shell body 1 of this embodiment can be applicable to power tools with a single battery pack 3 and a dual battery pack 3, the mounting portion 2 is integrally formed with the shell body 1 to ensure the integrity and sealing of the entire power tool shell, and the battery pack 3 can be installed without additional installation and assembly, the overall structure is seamlessly designed, and the stability and shock resistance are stronger;

[0037] In addition, the mounting portion 2 has and only has a terminal hole 14 suitable for the electrical connection terminal 23 to pass through, and the terminal hole 14 passes through the wall 13. Specifically, the terminal hole 14 is in an "L" shape, including a first portion 15 passing through the wall 13 and a second portion 16 passing through the step surface adjacent to the wall 13. A portion of the electrical connection terminal 23 extends through the first portion 15 corresponding thereto, and another portion extends and is inserted into the second portion 16 corresponding thereto and abuts against the second portion 16. With this design, the electrical connection terminal 23 can be supported by the two supporting surfaces, and the connection with the battery pack 3 is more stable when the battery pack 3 is plugged in, which can effectively prevent the electrical connection terminal 23 from bending or the like.

[0038] Embodiment 2:

[0039] Compared with Example 1, in this embodiment, the power tool housing includes a first housing 20 and a second housing 21 fixedly connected to each other, the mounting parts 2 on the two housings correspond to each other, and a limiting connection part suitable for limiting the installation of the electrical connection socket 4 is formed between the mounting parts 2 and located in the inner cavity of the power tool housing. Specifically, the electrical connection socket 4 is completely fixed inside the power tool housing composed of the first housing 20 and the second housing 21, and the electrical connection terminal 23 is extended outward only through the terminal hole 14.

[0040] Embodiment 3:

[0041] The present invention also includes an electric tool using the above-mentioned electric tool housing, the electric tool includes an electrical connection base 4, the electrical connection base 4 includes a connection base and an electrical connection terminal 23 fixedly connected to the connection base, the connection base is limitedly connected to the inner cavity of the electric tool housing, and the electrical connection terminal 23 extends to the terminal hole 14 provided on the mounting portion 2 and passes through the terminal hole 14, such as Figure 3 shown.

[0042] In addition, a sealing gasket surrounding the electrical connection terminal 23 is sandwiched between the connecting seat and the inner wall of the power tool housing. When only the terminal hole 14 of the mounting part 2 is connected to the outside, the sealing gasket can ensure the sealing and waterproof effect of the entire electric tool. It can have a good waterproof effect when used on power tools that need to be used in water environments such as cleaning machines or spray guns.

[0043] In this embodiment, the battery pack 3 matches the sliding portion 11 and slides along its sliding path; when the battery pack 3 slides to form an insertion with the electrical connection terminal 23, the latch 24 of the battery pack 3 is locked with the latch portion 12, and the latch 24 is linked with the button 22 of the battery pack 3. When the button 22 is pressed, the latch 24 is separated from the latch portion 12 to release the battery pack 3. The latch portion 12 is located on the sliding path of the sliding portion 11 or on the wall 13; specifically, the button 22 includes a first button and a second button located on opposite sides thereof, and the first button and the second button are pressed toward each other to drive the latch 24 to move, and the housing body 1 includes an outer peripheral edge suitable for at least partially wrapping the battery pack 3; when the power tool is horizontal to the ground, the button 22 at least partially protrudes from the outer peripheral edge, such as Figure 5 As shown, it is convenient for users to disassemble and assemble the battery pack 3.

[0044] Embodiment 4:

[0045] Compared with Example 3, in this embodiment, the electrical connection seat 4 can also adopt the following structure, which includes an integrated connection seat and electrical connection terminals 23 fixedly connected to the opposite sides of the integrated connection seat, the integrated connection seat is limitedly connected to the limit connection part, and the electrical connection terminals 23 extend respectively to the terminal holes 14 set on the mounting part 2 and pass through the terminal holes 14.

[0046] Embodiment 5:

[0047] like Figure 4 and Figure 5 As shown, compared with Example 3, in this embodiment, the line connecting the first vertex 17 and the second vertex 18 adjacent to the outer edge and the first button and the second button respectively is parallel or substantially parallel to the vertex tangent of the battery pack 3. The vertex tangent and the connecting line have a vertical distance H, and the vertical distance H is greater than or equal to 30 mm. In this embodiment, the vertical distance H is 30 mm, which can make it more convenient for users to disassemble and assemble the battery pack 3.

[0048] Embodiment 6:

[0049] like Figure 5As shown, compared with Example 3, in this embodiment, the button includes a first button and a second button located on opposite sides thereof, the first button and the second button are squeezed toward each other to drive the latch 24 to move, the shell body 1 includes an outer edge suitable for at least partially wrapping the battery pack 3; the vertical distance from the vertex of the outer edge to the surface tangent a of the button adjacent thereto is L, and the vertical distance L is greater than or equal to 15 mm. In this embodiment, the first button is on the same side as the first vertex 17, and the second button is on the same side as the second vertex 18. The vertical distance from the first vertex 17 to the surface tangent a of the first button is 15 mm, and the vertical distance from the second vertex 18 to the surface tangent b of the second button is 15 mm. When the power tool is horizontal to the ground, the button at least partially protrudes from the vertex of the outer edge, which can be more convenient for the user to press and to facilitate the user to disassemble and assemble the battery pack 3.

[0050] Embodiment 7:

[0051] Compared with Embodiment 6, in this embodiment, the peripheral edge includes an inclined portion 19 extending downward along the vertex toward the button, that is, a chamfered or rounded inclined surface formed by the first vertex 17 and the second vertex 18. The extended plane of the inclined portion 19 and the horizontal cutting surface of the button adjacent thereto are combined to form a pressing operation space of the button, which can be more convenient for the user to press. When the power tool is horizontally placed on the ground, when observed from the back of the power tool, as shown in FIG. Figure 4 As shown, the button is partially hidden by the inclined portion 19.

[0052] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An electric tool, characterized in that: include: Shell body; A mounting portion adapted to be configured to mount a battery pack, comprising a sliding portion and a latch portion that are integrally structured and corresponding to the sliding lock of the battery pack, and a wall surface opposite to the battery pack; Furthermore, the mounting portion is integrally formed with the housing body; The mounting portion has and is only provided with a terminal hole suitable for the electrical connection terminal to pass through, and the terminal hole passes through the wall surface; the terminal hole is in an "L" shape, and includes a first portion passing through the wall surface and a second portion passing through the step surface adjacent to the wall surface, and a portion of the electrical connection terminal extends through the first portion corresponding thereto, and another portion extends and is inserted into the second portion corresponding thereto and abuts against the second portion; The shell body comprises a first shell and a second shell fixedly connected to each other, the mounting parts on the two shells correspond to each other, and a limiting connection part suitable for limiting the installation of the electrical connection seat is formed between the mounting parts and located in the inner cavity of the shell body; The latch portion is located on the sliding path of the sliding portion or on the wall surface; An electrical connection terminal passing through a terminal hole located on the mounting portion; A battery pack, which matches the sliding portion and slides along its sliding path; When the battery pack slides to form an insertion connection with the electrical connection terminal, the latch of the battery pack is locked with the latch part, and the latch is linked with the button of the battery pack, and the latch is separated from the latch part by pressing the button to release the battery pack; The button comprises a first button and a second button located at opposite sides of the battery pack, the first button and the second button are pressed toward each other to drive the latch to move, and the housing body comprises a peripheral edge suitable for at least partially wrapping the battery pack; The vertical distance from the vertex of the peripheral edge to the surface tangent line a of the button adjacent thereto is L, and the vertical distance L is greater than or equal to 15 mm; When the electric tool is horizontal to the ground, the button at least partially protrudes from the peripheral edge.

2. The electric tool according to claim 1, characterized in that: include: The electrical connection seat comprises a connection seat and an electrical connection terminal fixedly connected to the connection seat, wherein the connection seat is limitedly connected in the inner cavity of the shell body, and the electrical connection terminal extends toward a terminal hole arranged on the mounting portion and passes through the terminal hole.

3. The electric tool according to claim 2, characterized in that: include: A sealing gasket surrounding the electrical connection terminal is sandwiched between the connection seat and the inner wall of the shell body.

4. The electric tool according to claim 1, characterized in that: include: The electrical connection seat comprises an integrated connection seat and electrical connection terminals fixedly connected to opposite sides of the integrated connection seat, wherein the integrated connection seat is limitatively connected to the limit connection portion, and the electrical connection terminals respectively extend toward terminal holes arranged on the mounting portion and pass through the terminal holes.

5. The electric tool according to claim 1, characterized in that: A line connecting a first vertex and a second vertex of the peripheral edge and the first button and the second button, respectively, is parallel or substantially parallel to a vertex tangent line of the battery pack.

6. The electric tool according to claim 5, characterized in that: A vertical distance H exists between the vertex tangent line of the battery pack and the connecting line, and the vertical distance H is greater than or equal to 30 mm.

7. The electric tool according to claim 1, characterized in that: When the electric tool is horizontal to the ground, the button at least partially protrudes from the vertex of the peripheral edge.

8. The electric tool according to claim 1 or 7, characterized in that: The peripheral edge includes an inclined portion extending downwardly and obliquely toward the button along the vertex of the peripheral edge, and an extending plane of the inclined portion and a horizontal cutting plane of the button adjacent thereto are combined to form a pressing operation space of the button.

9. The electric tool according to claim 8, characterized in that: When the electric tool is horizontally placed on the ground, the button portion is partially hidden by the inclined portion when viewed from directly behind the electric tool.

Citation Information

Patent Citations

  • Ice chiseling machine

    CN209653960U

  • Electric tool shell and electric tool with same

    CN211967385U

  • Electric tool

    JP2019076994A

  • Connector with piercing tail

    US20140308850A1

  • Battery assembly for an electronic device

    US8586225B1