Integrated electronic switch and power tool

Patent metadata

Field	Value
Publication number	US-2022293358-A1
Application number	US-202217692466-A
Country	US
Kind code	A1
Filing date	Mar 11, 2022
Priority date	Mar 11, 2021
Publication date	Sep 15, 2022
Grant date	—

Abstract

An integrated electronic switch includes an input unit and a circuit board. The input unit is configured to receive a drive signal output by a user. A sensing module for sensing the drive signal transmitted from the input unit, and a control module electrically connected to the sensing module are disposed on the circuit board, where the sensing module and the control module are disposed on a first side surface of the circuit board.

First claim

What is claimed is:

1 . An integrated electronic switch, comprising:
an input unit configured to receive a drive signal output by a user; a sensing module for sensing the drive signal transmitted from the input unit; a circuit board for supporting the sensing module; and a control module electrically connected to the sensing module and disposed on the circuit board; wherein the sensing module and the control module are disposed on a first side surface of the circuit board.

2 . The integrated electronic switch of claim 1 , wherein the circuit board is provided with a plurality of switching elements and the plurality of switching elements are electrically connected to the control module.

3 . The integrated electronic switch of claim 2 , wherein the plurality of switching elements are disposed on a second side surface of the circuit board and the second side surface is opposite to the first side surface.

4 . The integrated electronic switch of claim 3 , wherein the integrated electronic switch further comprises a heat dissipation element disposed on the second side surface of the circuit board.

5 . The integrated electronic switch of claim 4 , wherein a heat conduction element configured to transmit heat generated on the plurality of switching elements to the heat dissipation element is disposed between the heat dissipation element and the plurality of switching elements.

6 . The integrated electronic switch of claim 1 , wherein the input unit comprises a trigger and a sensing actuator and the sensing actuator is provided with a power-on sliding blade and a speed-regulating sliding blade.

7 . The integrated electronic switch of claim 6 , wherein the sensing module is formed with a power-on sensing area and a speed-regulating sensing area, and the power-on sensing area is electrically connected to the power-on sliding blade and the speed-regulating sensing area is electrically connected to the speed-regulating sliding blade when the integrated electronic switch works.

8 . The integrated electronic switch of claim 1 , further comprising a housing formed with an accommodation space, wherein the circuit board is at least partially located in the accommodation space.

9 . The integrated electronic switch of claim 8 , wherein the sensing module is disposed in the accommodation space and the control module is disposed outside the accommodation space.

10 . The integrated electronic switch of claim 1 , further comprising a housing formed with an accommodation space, wherein the circuit board comprises a first portion located inside the accommodation space and a second portion located outside the accommodation space.

11 . The integrated electronic switch of claim 10 , wherein the sensing module is disposed on the first portion of the circuit board, and the control module is disposed on the second portion of the circuit board.

12 . The integrated electronic switch of claim 11 , wherein the circuit board is provided with a plurality of switching elements, the plurality of switching elements are electrically connected to the control module, and the plurality of switching elements are disposed on the second portion of the circuit board.

13 . The integrated electronic switch of claim 12 , further comprising a heat dissipation element for dissipating heat from the switching element.

14 . The integrated electronic switch of claim 13 , wherein the heat dissipation element is located at least partially outside the accommodation space.

15 . The integrated electronic switch of claim 1 , wherein the circuit board is provided with a plurality of switching elements, the plurality of switching elements are electrically connected to the control module, and the plurality of switching elements are disposed on the first side surface of the circuit board .

16 . A power tool, comprising:
a tool housing; a motor, disposed in the tool housing; and an integrated electronic switch for starting the operation of the motor and adjusting a rotational speed of the motor; wherein the integrated electronic switch comprises: an input unit configured to receive a drive signal output by a user; a sensing module for sensing the drive signal transmitted from the input unit; a circuit board for supporting the sensing module; and a control module electrically connected to the sensing module and disposed on the circuit board; and wherein the sensing module and the control module are disposed on a first side surface of the circuit board.

17 . An integrated electronic switch, comprising:
a housing formed with an accommodation space; an input unit configured to receive a drive signal output by a user; a sensing module for sensing the drive signal transmitted from the input unit; a circuit board for supporting the sensing module; and a plurality of switching elements; wherein the sensing module is disposed on a first side surface of the circuit board and the plurality of switching elements are disposed on a second side surface of the circuit board.

18 . The integrated electronic switch of claim 17 , wherein the circuit board comprises a first potion and a second potion, the first potion is located in the accommodation space, and the second potion is located outside the accommodation space.

19 . The integrated electronic switch of claim 18 , wherein the sensing module is disposed on the first potion of the circuit board and the plurality of switching elements are disposed on the second potion of the circuit board.

20 . The integrated electronic switch of claim 19 , further comprising a heat dissipation element disposed on the second side surface of the circuit board, wherein the heat dissipation element is fixedly mounted to the second potion of the circuit board.

Assignees

• Nanjing Chervon Ind Co Ltd

Inventors

• Zuo Changwei
• Tong Shubin
• Cheng Yonghui

Classifications

• H05K2201/10053

  Switch · CPC title

• H02K7/145

  Hand-held machine tool · CPC title

• B25F5/001

  Gearings, speed selectors, clutches or the like specially adapted for rotary tools · CPC title

• H01H13/08 Primary

  Casing of switch constituted by a handle serving a purpose other than the actuation of the switch · CPC title

• H01H2009/065

  Battery operated hand tools in which the battery and the switch are directly connected · CPC title