Handheld electric tool

Abstract

The utility model relates to the technical field of electric tools, and discloses a handheld electric tool which comprises a machine shell assembly, a switch assembly, a motor and a transmission assembly, the motor and the transmission assembly are arranged in the machine shell assembly, the transmission assembly is connected with a power output assembly, and a PCB control unit and a battery unit are further arranged in the machine shell assembly. The PCB control unit and the battery unit are detachably connected to the machine shell assembly, the PCB control unit comprises a PCB, the motor is connected with a first inserting part through a wire, the PCB is connected with a second inserting part, and the first inserting part is electrically connected with the second inserting part in a pluggable mode. The utility model has the advantages that the integrality is good, the maintenance and replacement of internal components are convenient, and the recovery of the built-in battery is convenient after the product is scrapped.

Description

Technical Field

[0001] The utility model relates to the technical field of power tools, in particular to a hand-held power tool. Background Art

[0002] At present, there are roughly two structural forms of hand-held power tools. One is that a detachable battery pack is installed at the bottom of the power tool body, and the disadvantage is that the integrity of the tool is poor. The other is the form in which the battery pack is built into the power tool housing. Its defect is that the maintenance and replacement of internal components such as circuit boards and batteries are relatively inconvenient, and the recycling of the built-in battery is difficult after the product is scrapped. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a hand-held power tool. It has the advantages of good integrity, convenient maintenance and replacement of internal components, and convenient recycling of the built-in battery after the product is scrapped.

[0004] The technical solution of the utility model: A hand-held power tool includes a housing assembly, a switch assembly, a motor and a transmission assembly arranged in the housing assembly. The transmission assembly is connected with a power output assembly. A PCB control unit and a battery unit are also arranged in the housing assembly. The PCB control unit and the battery unit are detachably connected to the housing assembly. The PCB control unit includes a PCB board. The motor is connected with a first plug-in part through a wire, and the PCB board is connected with a second plug-in part. The first plug-in part and the second plug-in part are pluggably and electrically connected.

[0005] Compared with the prior art, the beneficial effects of the utility model are reflected in that: The utility model increases the integrity of the power tool by arranging the PCB control unit and the battery unit in the housing assembly, and both the PCB control unit and the battery unit are detachable relative to the housing assembly, which is convenient for the maintenance and replacement of internal components of the power tool; specifically, the motor and the PCB board are electrically connected through the first plug-in part and the second plug-in part, which is convenient for disassembly and assembly and after-sales maintenance; in addition, when the power tool is scrapped, only by disconnecting between the first plug-in part and the second plug-in part, the motor can be quickly separated from the PCB board, and the PCB control unit and the battery unit can be quickly removed from the power tool as a whole to realize the recycling of the built-in battery.

[0006] In the aforementioned hand-held power tool, the second plug-in part is welded to the PCB board.

[0007] In the aforementioned hand-held power tool, the second plug-in part is connected to the PCB board through a wire, and both the first plug-in part and the second plug-in part are located on one side of the axial direction of the motor.

[0008] In the aforementioned handheld power tool, the PCB control unit and the battery unit are both located on one side of the axis of the motor.

[0009] In the aforementioned handheld power tool, it further includes at least one signal detection unit. The signal detection unit is electrically connected to a third plug-in part through a wire. The PCB board is connected to a fourth plug-in part, and the third plug-in part and the fourth plug-in part are electrically connected in a pluggable manner.

[0010] In the aforementioned handheld power tool, the battery unit includes a battery cell and a framework. The battery cell is fixed through the framework, and the framework is detachably connected to the PCB board.

[0011] In the aforementioned handheld power tool, the framework is provided with a buckle, and the PCB board is provided with a buckle groove. The framework and the PCB board are detachably connected through the cooperation of the buckle and the buckle groove.

[0012] In the aforementioned handheld power tool, both ends of the battery cell are respectively electrically connected to a first conductive part, and the first conductive part is welded to the PCB board.

[0013] In the aforementioned handheld power tool, both ends of the battery cell are respectively electrically connected to a first conductive part, and the PCB board is provided with a second conductive part corresponding to the first conductive part. The first conductive part and the second conductive part are electrically connected in a pluggable manner.

[0014] In the aforementioned handheld power tool, the handheld power tool is an electric scissors. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0016] Figure 2 is Figure 1 a partial enlarged view at A.

[0017] Reference numerals: 1, switch assembly; 2, motor; 3, transmission assembly; 4, power output assembly; 5, PCB control unit; 51, PCB board; 511, buckle groove; 6, battery unit; 61, battery cell; 62, framework; 621, buckle; 7, first plug-in part; 8, second plug-in part; 9, signal detection unit. Detailed Embodiments

[0018] The following further describes the present invention in conjunction with the drawings and embodiments, but it shall not be used as a basis for limiting the present invention.

[0019] An embodiment of the present invention provides a handheld power tool, the structure of which is as shown in Figure 1 and Figure 2As shown, it includes a housing assembly, a switch assembly 1, a motor 2 and a transmission assembly 3 disposed within the housing assembly. Among them, the housing assembly is not shown in the figure. The transmission assembly 3 is connected to a power output assembly 4. A PCB control unit 5 and a battery unit 6 are also provided within the housing assembly. The PCB control unit 5 and the battery unit 6 are detachably connected to the housing assembly. The PCB control unit 5 includes a PCB board 51. The motor 2 is connected to a first plug-in part 7 via a wire. The PCB board 51 is connected to a second plug-in part 8. The first plug-in part 7 and the second plug-in part 8 are electrically connected in a pluggable manner.

[0020] In this embodiment, both the PCB control unit 5 and the battery unit 6 are built into the housing assembly, which increases the integrity of the power tool. Moreover, the PCB control unit 5 and the battery unit 6 are detachable relative to the housing assembly, facilitating the maintenance and replacement of the internal components of the power tool. Specifically, the motor 2 and the PCB board 51 are electrically connected through the first plug-in part 7 and the second plug-in part 8, which is convenient for disassembly and assembly and for after-sales maintenance. In addition, when the power tool is scrapped, only by disconnecting between the first plug-in part 7 and the second plug-in part 8, the motor 2 can be quickly separated from the PCB board 51, and the PCB control unit 5 and the battery unit 6 can be quickly removed from the power tool as a whole, realizing the recycling of the built-in battery.

[0021] Optionally, the second plug-in part 8 is welded to the PCB board 51.

[0022] In this embodiment, the second plug-in part 8 and the PCB board 51 are not connected by a wire, which saves costs.

[0023] Optionally, the second plug-in part 8 is connected to the PCB board 51 via a wire, and both the first plug-in part 7 and the second plug-in part 8 are located on one side of the axial direction of the motor 2.

[0024] In this embodiment, the second plug-in part 8 and the PCB board 51 are connected by a wire. The positions of the first plug-in part 7 and the second plug-in part 8 can be set more flexibly, and it is more convenient for the two to be disconnected from each other. Both the first plug-in part 7 and the second plug-in part 8 are located on one side of the axial direction of the motor 2, without occupying the radial or circumferential space of the motor 2, making the arrangement of the internal components of the housing assembly more compact. The outer diameter of the corresponding part of the housing assembly can be made smaller, making it more lightweight and convenient to hold.

[0025] Optionally, both the PCB control unit 5 and the battery unit 6 are located on one side of the axial direction of the motor 2.

[0026] In this embodiment, the above design facilitates the quick detachment of the PCB control unit 5 and the battery unit 6 as a whole from the motor 2, enabling maintenance or recycling. Secondly, it does not occupy the radial or circumferential space of the motor 2, making the arrangement of the components inside the housing assembly more compact. The outer diameter of the corresponding part of the housing assembly can be made smaller, making it lighter and more convenient to hold.

[0027] Optionally, the handheld power tool further includes at least one signal detection unit 9. The signal detection unit 9 is connected to a third plug-in part via a wire, and the PCB board 51 is connected to a fourth plug-in part. The third plug-in part and the fourth plug-in part are electrically connected in a pluggable manner.

[0028] In this embodiment, in addition to the motor 2, the components connected to the PCB board 51 in the handheld power tool further include at least one signal detection unit 9. The signal detection unit 9 can be a Hall sensor, a micro switch, a temperature sensor, etc. It is also electrically connected to the PCB board 51 through a quick plug-and-play structure, facilitating the quick removal of the PCB control unit 5 and the battery unit 6 as a whole from the power tool.

[0029] Optionally, the battery unit 6 includes a battery cell 61 and a skeleton 62. The battery cell 61 is fixed by the skeleton 62, and the skeleton 62 is detachably connected to the PCB board 51.

[0030] In this embodiment, the PCB control unit 5 and the battery unit 6 can also be separated from each other. The skeleton 62 can be removed from the PCB board 51. When the PCB control unit 5 and the battery unit 6 are quickly removed from the power tool as a whole, the PCB control unit 5 and the battery unit 6 can be quickly separated, so that the battery cell 61 in the battery unit 6 can be separately removed to realize the replacement or recycling of the battery cell 61. The necessary condition for this embodiment is that the nickel sheets at both ends of the battery cell 61 and the PCB board 51 are non-welded detachable structures.

[0031] Optionally, the skeleton 62 is provided with a buckle 621, and the PCB board 51 is provided with a buckle groove 511. The skeleton 62 and the PCB board 51 are detachably connected through the cooperation of the buckle 621 and the buckle groove 511.

[0032] In this embodiment, the skeleton 62 and the PCB board 51 can be quickly and conveniently detached from each other through the cooperation of the buckle 621 and the buckle groove 511.

[0033] Optionally, first conductive members are electrically connected to both ends of the battery cell 61 respectively, and the first conductive members are welded to the PCB board 51.

[0034] In this embodiment, the first conductive member is a nickel sheet, and the first conductive member is welded to the PCB board 51. The PCB control unit 5 and the battery unit 6 can only be removed from the power tool as a whole.

[0035] Optionally, first conductive members are electrically connected to both ends of the battery cell 61 respectively, second conductive members corresponding to the first conductive members are provided on the PCB board 51, and the first conductive members and the second conductive members are pluggably and electrically connected to each other.

[0036] In this embodiment, after the PCB control unit 5 and the battery unit 6 are detached from the power tool as a whole, the PCB control unit 5 and the battery unit 6 can still be quickly separated, facilitating the individual detachment and recycling of the battery cells 61 in the battery unit 6.

[0037] Optionally, part of the power output assembly 4 is exposed outside the housing assembly, facilitating the output of power.

[0038] Optionally, the hand-held power tool is an electric scissors, and the signal detection unit 9 is a Hall sensor.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, 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, and therefore should not be construed as a limitation to the present invention.

[0040] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A handheld electric tool, comprising a housing assembly, a switch assembly (1), and a motor (2) and a transmission assembly (3) arranged in the housing assembly, wherein the transmission assembly (3) is connected to a power output assembly (4), characterized in that: A PCB control unit (5) and a battery unit (6) are also provided in the housing assembly. The PCB control unit (5) and the battery unit (6) are detachably connected to the housing assembly. The PCB control unit (5) comprises a PCB board (51). The motor (2) is connected to a first plug-in portion (7) via a wire. The PCB board (51) is connected to a second plug-in portion (8). The first plug-in portion (7) and the second plug-in portion (8) are electrically connected in a pluggable manner.

2. The handheld power tool according to claim 1, characterized in that: The second plug-in portion (8) is welded to the PCB board (51).

3. The handheld power tool according to claim 1, characterized in that: The second plug-in portion (8) is connected to the PCB board (51) via a wire, and the first plug-in portion (7) and the second plug-in portion (8) are both located on one side of the axial direction of the motor (2).

4. The handheld power tool according to claim 3, characterized in that: The PCB control unit (5) and the battery unit (6) are both located on one side of the axial direction of the motor (2).

5. The handheld power tool according to claim 1, characterized in that: It also comprises at least one signal detection unit (9), the signal detection unit (9) being connected to a third plug-in portion via a wire, the PCB board (51) being connected to a fourth plug-in portion, and the third plug-in portion and the fourth plug-in portion being electrically connected in a pluggable manner.

6. The handheld power tool according to claim 1, characterized in that: The battery unit (6) comprises a battery core (61) and a frame (62); the battery core (61) is fixed via the frame (62); and the frame (62) is detachably connected to the PCB board (51).

7. The handheld power tool according to claim 6, characterized in that: The frame (62) is provided with a buckle (621), and the PCB board (51) is provided with a buckle groove (511); the frame (62) and the PCB board (51) are detachably connected through the cooperation of the buckle (621) and the buckle groove (511).

8. The handheld power tool according to claim 6, characterized in that: Two ends of the battery core (61) are respectively electrically connected to a first conductive member, and the first conductive member is welded to the PCB board (51).

9. The handheld power tool according to claim 6, characterized in that: Both ends of the battery core (61) are electrically connected to a first conductive member, respectively; a second conductive member corresponding to the first conductive member is provided on the PCB board (51); the first conductive member and the second conductive member are electrically connected in a pluggable manner.

10. The handheld electric tool according to any one of claims 1 to 9, characterized in that: The handheld electric tool is an electric scissors.

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