CN219402660U

CN219402660U - Electric tool

Info

Publication number: CN219402660U
Application number: CN202320569481.2U
Authority: CN
Inventors: 刘爱国; 吴勇
Original assignee: Jiangsu Dongcheng M&e Tools Co ltd
Current assignee: Jiangsu Dongcheng M&e Tools Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-07-25
Anticipated expiration: 2033-03-21

Abstract

The utility model relates to an electric tool, which comprises a shell, a driving mechanism and a controller assembly, wherein the controller assembly comprises a controller shell, a controller buckle protruding outwards from the peripheral side of the controller shell and a controller unit arranged in the controller shell, a shell of the shell comprises a positioning rib protruding from the inner wall, a clamping groove and a protruding part which are matched with each other are also arranged between the shell and the controller buckle, one of the shell and the controller buckle is provided with the clamping groove, and the other is provided with the protruding part. According to the utility model, the clamping groove and the protruding part which are matched with each other are arranged between the shell and the controller buckle, the protruding part is combined in the clamping groove, the controller shell is fixedly held on the positioning rib, no additional screw is needed for fixing, and the structure is simple and the disassembly and the assembly are convenient.

Description

Electric tool

[ technical field ]

The present utility model relates to the field of power tools, and more particularly, to a power tool with an improved controller assembly mounting structure.

[ background Art ]

The electric tool is a handheld or movable mechanical tool which starts a driving mechanism through a controller component and drives a working head to output, the controller component comprises a controller shell and a control unit arranged on the controller shell, and the controller component is fixedly arranged on a shell of the electric tool through the controller shell. The conventional mounting structure is that screw holes are formed in a shell of the electric tool and a shell of the controller, and screws are arranged in the screw holes in a penetrating mode so as to fix the controller assembly on the shell of the electric tool.

For improvement of the installation structure of the electric tool controller, refer to chinese patent No. CN206632952U, published in 2017, 11, 14, which discloses: the utility model provides a fixed knot of electric tool controller constructs, includes the control panel and accomodates the controller shell of this control panel, is equipped with components and parts on the control panel, and the both sides of controller shell are equipped with the screw hole, and the controller shell passes through the bolt fastening, and the screw rod of bolt and the inner wall contact of the blind end of screw hole for the controller shell can not produce and remove. However, the above-mentioned structure adopts bolt and screw-thread fit to accomplish the installation of controller subassembly and electric tool, during the assembly, the condition that the part dropped very easily appears to prior art's mounting structure spare part is many, and the structure is complicated, and the installation is comparatively inconvenient, is unfavorable for the quick assembly disassembly of controller subassembly.

In view of the above, it is desirable to provide an improved power tool that overcomes the shortcomings of the prior art.

[ summary of the utility model ]

Aiming at the defects of the prior art, the utility model aims to provide an electric tool with a simple structure of a controller assembly and convenient disassembly and assembly.

The utility model solves the problems in the prior art by adopting the following technical scheme: the utility model provides an electric tool, includes the shell, install in actuating mechanism in the shell and connect in actuating mechanism's controller subassembly, the controller subassembly includes the controller shell and locates the control unit in the controller shell, the shell is including acceping actuating mechanism's casing, the controller subassembly is located at least partially in the casing, the controller subassembly includes from the outside protruding controller buckle of circumference side of controller shell, the casing includes protruding location muscle from the inner wall, the controller shell keep in the location muscle, the casing with still be provided with draw-in groove and the bellying of mutually supporting between the controller buckle, the casing with one of them has the draw-in groove of controller buckle, another has the bellying.

The further improvement scheme is as follows: the clamping groove penetrates through the inner wall of the shell, the protruding portion is arranged on the controller shell and protrudes outwards, and the protruding portion is combined in the clamping groove.

The further improvement scheme is as follows: the protruding part is a buckling piece protruding from the inner wall of the shell, the clamping groove is a groove arranged on the controller buckle, and the controller shell is fixedly held between the positioning rib and the buckling piece.

The further improvement scheme is as follows: the controller shell comprises a base plate and an outer frame protruding from the periphery of the base plate, an accommodating space is formed by surrounding the base plate and the outer frame, and the control unit is arranged in the accommodating space.

The further improvement scheme is as follows: the positioning ribs comprise a first positioning rib and a second positioning rib which protrude from the inner wall of the shell, the outer frame is clamped between the first positioning rib and the second positioning rib, and the protruding length of the first positioning rib and the protruding length of the second positioning rib are not more than the inner edge of the outer frame.

The further improvement scheme is as follows: the positioning ribs further comprise auxiliary positioning ribs protruding from the inner wall of the shell, and the auxiliary positioning ribs are abutted to the substrate.

The further improvement scheme is as follows: the first positioning ribs and the second positioning ribs are respectively provided with two, and the two first positioning ribs and the two second positioning ribs are respectively protruded from the inner wall of the shell in opposite directions.

The further improvement scheme is as follows: the auxiliary positioning ribs are provided with first auxiliary positioning ribs and second auxiliary positioning ribs, the first auxiliary positioning ribs and the second auxiliary positioning ribs are positioned on two sides of the substrate, and the first auxiliary positioning ribs and the second auxiliary positioning ribs are propped against the substrate.

The further improvement scheme is as follows: the controller buckle comprises a connecting part combined with the controller shell and a buckle arm extending from the connecting part along the periphery of the controller shell, and the protruding part is arranged at the end part of the buckle arm.

The further improvement scheme is as follows: the controller buckle is provided with a pair of controller buckles, the controller buckles are symmetrically arranged at two ends of the controller shell, and the protruding part is clamped to the surface of at least half of the clamping groove.

Compared with the prior art, the utility model has the following beneficial effects: a clamping groove and a protruding part which are matched with each other are formed between the shell and the controller buckle, the protruding part is combined in the clamping groove, the inner wall of the shell is protruded to extend out of the positioning rib, the controller shell is fixedly held on the positioning rib, no additional screw is needed for fixing, and the controller is simple in structure and convenient to assemble and disassemble; specifically, the number of the controller buckles is two, and the centers of the controller buckles are symmetrically distributed on opposite sides of two sides of the controller shell, so that the controller assembly can be better and firmly buckled on the shell; secondly, two auxiliary positioning rib structures are added to form dimension limit on the controller shell, so that the mounting accuracy of the controller assembly is improved; in addition, the protruding length of the positioning ribs is not more than the inner edge of the outer frame of the controller shell, so that wind can flow to the driving mechanism better, and the heat dissipation effect is good; and the protruding part is clamped to at least half of the surface of the clamping groove, so that the mounting structure of the controller assembly is more firm, and the shock resistance is good.

[ description of the drawings ]

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:

FIG. 1 is an overall schematic view of a power tool according to embodiment 1 of the present utility model;

FIG. 2 is an exploded view of the power tool shown in FIG. 1;

FIG. 3 is a cross-sectional view of the power tool shown in FIG. 1;

FIG. 4 is a schematic illustration of the power tool of FIG. 2 with the housing and controller assembly uninstalled;

FIG. 5 is a schematic view of the controller housing of the power tool of FIG. 4;

FIG. 6 is a schematic view of the housing and controller assembly of the power tool of FIG. 4 after installation;

FIG. 7 is a cross-sectional view of the housing and controller assembly shown in FIG. 6 after installation;

fig. 8 is a schematic view showing the structure of the housing and the controller assembly of the electric power tool according to embodiment 2 of the present utility model after being mounted;

FIG. 9 is a schematic view of the power tool of FIG. 8 with the housing and controller assembly removed;

detailed description of the preferred embodiments

The utility model will be described in further detail with reference to the drawings and embodiments.

The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Words such as "upper", "lower", "front", "rear", etc., indicating an azimuth or a positional relationship are based on only the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Example 1

Referring to fig. 1 to 3, an embodiment of the present utility model relates to a power tool 100, wherein the power tool 100 mainly refers to an angle grinder, a power saw, a power pick, etc., and the power tool 100 has a controller assembly for controlling actions on the power tool. The shape of the controller housing may be square, circular, etc., and the power tool of this embodiment is preferably an angle grinder. The angle grinder 100 comprises a housing 1, a driving mechanism 2 installed in the housing 1, a controller component 3 connected to the driving mechanism 2 and a switch component 4 for controlling the angle grinder 100 to start and stop, wherein the switch component 4 is connected to the controller component 3, the driving mechanism 2 comprises a motor component 21 and a transmission mechanism 22, the housing 1 accommodates the driving mechanism 2, the controller component 3 and the switch component 4, a user presses and triggers a switch 41 of the switch component 4, the controller component 3 sends a working signal to the motor component 21, the motor component 21 rotates under the energy supply of a driving source to drive an output shaft 221 of the transmission mechanism 22 to move, and grinding tools such as a grinding disc and a cutting disc are installed at the end part of the output shaft 221 to perform operation.

In the present embodiment, the housing 1 includes a case 11, a left casing 14 connected to the left side of the case 11, and a right casing 15 connected to the right side of the case 11. The driving mechanism 2 is located in the shell 1, the controller component 3 is partially located in the shell 1 and is partially located in the accommodating cavity formed by the left shell 14 and the right shell 15, the switch component 4 is located in the accommodating cavity formed by the left shell 14 and the right shell 15, the driving mechanism 2 is further provided with a leather collar 23, the end part of the motor component 21 is supported by a bearing 24, the leather collar 23 is arranged in a gap between the shell 11 and the controller component 3, the damping performance is greatly improved, dust and the like are prevented from contacting the bearing 24 through the gap, and the service life of the angle grinder 100 is prolonged.

Further, the housing 11 includes a positioning rib 12 protruding from the inner wall and a clamping groove 13 penetrating through the inner wall, and in order to ensure accurate positioning, the positioning rib 12 includes a first positioning rib 121 protruding from the inner wall of the housing 11, a second positioning rib 122 and an auxiliary positioning rib 123, where the number of the first positioning rib 121 and the number of the second positioning rib 122 are two and protrude from the inner wall of the housing 11 in opposite directions respectively. The controller subassembly 3 holds between first location muscle 121, second location muscle 122 and auxiliary positioning muscle 123, can very convenient and accurate confirm the relative position of casing 11 and controller subassembly 3, has improved the installation accuracy of controller buckle 33 at draw-in groove 13.

Referring to fig. 4 to 7, the controller assembly 3 includes a controller 31, a control unit 32 disposed in the controller housing 31, and controller buckles 33 protruding outwards from the peripheral side of the controller housing 31, and in order to further firmly fasten the controller buckles 33 to the housing 11, in this embodiment, the number of the controller buckles 33 is two and the center of the controller buckles 33 is symmetrically distributed on opposite sides of two sides of the controller housing 31.

In the present embodiment, the controller catch 33 includes a connection portion 333 coupled to the controller housing 31, a catch arm 332 extending from the connection portion 333 along the periphery of the controller housing 31, and a protrusion 331 extending from an end of the catch arm 332 away from the controller housing 31, where the catch arm 332 and the connection portion 333 have a certain elasticity, and the catch arm 332 can be retracted inwards by pressing, and the protrusion 331 is engaged to the catch groove 13, so that the structure is simple and the assembly and the disassembly are convenient.

Specifically, when the controller buckle 33 is mounted on the clamping groove 13, the outer wall 3311 of the protruding portion 331 is firstly contacted with the side wall 121 of the clamping groove 12, the buckle arm 332 is continuously pressed down, the controller buckle 33 is limited by the side wall 121 and is contracted inwards, the protruding portion 331 smoothly passes through the lower portion of the clamping groove 13, and after the protruding portion 331 is separated from the side wall 121 of the clamping groove 12, the protruding portion 331 is reset under the rebound action of the buckle arm 332 and is abutted to the bottom of the clamping groove 13. In order to avoid affecting the operation of the machine, the clamping grooves 3 are formed on two sides of the housing 11, and the clamping grooves 12 are specifically through grooves or through holes penetrating through the inner wall of the housing 11.

Further, the protruding portion 331 is clamped to at least half of the surface of the clamping groove 13, so that the controller assembly mounting structure is more fastened, and the shock resistance is good.

Referring to fig. 5 to 6, the controller housing 31 includes a substrate 311 and an outer frame 312 protruding from a periphery of the substrate 311, the control unit 32 is disposed in a receiving space defined by the substrate 311 and the outer frame 312, the outer frame 312 is clamped between a first positioning rib 121 and a second positioning rib 122 protruding from an inner wall of the housing 11, and an auxiliary positioning rib 123 protruding from the inner wall of the housing 11 abuts against the substrate 311.

In this embodiment, the auxiliary positioning ribs 123 have a first auxiliary positioning rib 1231 and a second auxiliary positioning rib 1232, and the first auxiliary positioning rib 1231 and the second auxiliary positioning rib 1232 are located on two sides of the substrate 311 and both abut against the substrate 311, so as to form a dimension boundary for the controller housing 31, thereby improving the positioning accuracy of installation.

Further, the protruding lengths of the first positioning ribs 121 and the second positioning ribs 122 do not exceed the inner edge of the outer frame 312, so that wind can flow to the driving mechanism 2 better, and heat dissipation efficiency is improved.

Example 2

Referring to fig. 8 and 9, in a second embodiment of the present utility model, the overall structure of the electric tool is substantially the same as that of the electric tool of the first embodiment, except that: the housing 11' includes a positioning rib 18 protruding from the inner wall and a fastener 19 protruding from the inner wall, the controller clip 33' includes a groove 338 that is clipped to the fastener 19, and the controller housing 31' is held between the positioning rib 18 and the fastener 19.

Specifically, when the controller housing 31' is mounted on the shell 11', the outer wall of the hook 191 of the fastener 19 is firstly contacted with the edge wall of the controller fastener 33', and the controller fastener 33' is continuously pressed down, so that the controller fastener 33' can prop up the hook 191 due to a certain elasticity of the fastener 19, the controller fastener 33' is limited by the positioning rib 18 and is outwards prop up, the outer wall of the hook 191 slides to the groove 338 at the edge wall of the controller fastener 33', and is reset and is blocked in the groove 338 under the rebound effect, so that the controller assembly 3' is mounted and fixed on the shell 11 '.

In the scheme of the utility model, the clamping groove and the protruding part which are matched with each other are arranged between the shell and the controller buckle, one of the shell and the controller buckle is provided with the clamping groove, the other is provided with the protruding part, and the clamping device is not required to be fixed by an additional screw, and has a simple structure and is convenient to assemble and disassemble.

The present utility model is not limited to the above-described embodiments. Those skilled in the art will readily appreciate that many alternatives are available for the power tool of the present utility model without departing from the spirit and scope of the present utility model. The protection scope of the present utility model is subject to the claims.

Claims

1. The electric tool comprises a shell, a driving mechanism arranged in the shell and a controller component connected with the driving mechanism, wherein the controller component comprises a controller shell and a control unit arranged in the controller shell, the shell comprises a shell for accommodating the driving mechanism, and the controller component is at least partially positioned in the shell; the method is characterized in that: the controller assembly comprises a controller buckle protruding outwards from the peripheral side of the controller shell, the shell comprises a positioning rib protruding from the inner wall, the controller shell is fixedly held on the positioning rib, a clamping groove and a protruding portion which are matched with each other are further formed between the shell and the controller buckle, one of the shell and the controller buckle is provided with the clamping groove, and the other one of the shell and the controller buckle is provided with the protruding portion.

2. The power tool of claim 1, wherein: the clamping groove penetrates through the inner wall of the shell, the protruding portion is arranged on the controller shell and protrudes outwards, and the protruding portion is combined in the clamping groove.

3. The power tool of claim 1, wherein: the protruding part is a buckling piece protruding from the inner wall of the shell, the clamping groove is a groove arranged on the controller buckle, and the controller shell is fixedly held between the positioning rib and the buckling piece.

4. The power tool of claim 1, wherein: the controller shell comprises a base plate and an outer frame protruding from the periphery of the base plate, an accommodating space is formed by surrounding the base plate and the outer frame, and the control unit is arranged in the accommodating space.

5. The power tool of claim 4, wherein: the positioning ribs comprise a first positioning rib and a second positioning rib which protrude from the inner wall of the shell, the outer frame is clamped between the first positioning rib and the second positioning rib, and the protruding length of the first positioning rib and the protruding length of the second positioning rib are not more than the inner edge of the outer frame.

6. The power tool of claim 5, wherein: the positioning ribs further comprise auxiliary positioning ribs protruding from the inner wall of the shell, and the auxiliary positioning ribs are abutted to the substrate.

7. The power tool of claim 5, wherein: the first positioning ribs and the second positioning ribs are respectively provided with two, and the two first positioning ribs and the two second positioning ribs are respectively protruded from the inner wall of the shell in opposite directions.

8. The power tool of claim 6, wherein: the auxiliary positioning ribs are provided with first auxiliary positioning ribs and second auxiliary positioning ribs, the first auxiliary positioning ribs and the second auxiliary positioning ribs are positioned on two sides of the substrate, and the first auxiliary positioning ribs and the second auxiliary positioning ribs are propped against the substrate.

9. The power tool of claim 2, wherein: the controller buckle comprises a connecting part combined with the controller shell and a buckle arm extending from the connecting part along the periphery of the controller shell, and the protruding part is arranged at the end part of the buckle arm.

10. The power tool of claim 9, wherein: the controller buckle is provided with a pair of controller buckles, the controller buckles are symmetrically arranged at two ends of the controller shell, and the protruding part is clamped to the surface of at least half of the clamping groove.