Switch assembly and power tool

Patent metadata

Field	Value
Publication number	US-11990294-B2
Application number	US-202117477562-A
Country	US
Kind code	B2
Filing date	Sep 17, 2021
Priority date	Sep 23, 2020
Publication date	May 21, 2024
Grant date	May 21, 2024

Abstract

The disclosure provides a switch assembly and a power tool. The switch assembly includes a housing which extends along the longitudinal axis, a main control switch which is housed within the housing, a locking switch which is slidably connected with the housing and can move between a locking position and a releasing position, and a start switch which is rotably connected with the housing by a pivot. The locking switch is in contact with the start switch when the locking switch is in the locking position, and the start switch is in a locked state. The locking switch is disengaged from the start switch when the locking switch is in the releasing position, and the start switch is in a released state.

First claim

What is claimed is:

1. A switch assembly, comprising:
a housing, extending along a longitudinal axis;
a main control switch, housed within the housing;
a locking switch, slidably connected to the housing and movable between a locking position and a releasing position, wherein an angle of 0° is formed between a sliding direction of the locking switch and the longitudinal axis; and
a start switch, rotatably connected with the housing by a pivot, wherein
the locking switch is in contact with the start switch when the locking switch is in the locking position and the start switch is in a locked state, and the locking switch is disengaged from the start switch when the locking switch is in the releasing position and the start switch is in a released state;
wherein the locking switch comprises:
a first operating part, protruding from the housing;
an abutting part, housed within the housing; and
a main body part connecting the first operating part and the abutting part,
wherein the abutting part extends from the first operating part toward the start switch, and the abutting part is in contact with the start switch when the locking switch is in the locking position;

wherein the start switch comprises:
a contact part, disposed within the housing; and
a second operating part, protruding from the housing,
wherein the contact part is in contact with the main control switch, and the second operating part comprises an end surface, wherein the abutting part is in contact with the end surface of the second operating part when the locking switch is in the locking position, and the abutting part is disengaged from the end surface of the second operating part when the locking switch is in the releasing position, and wherein the second operating part is provided with a containing cavity for containing the abutting part;

wherein one end of the main body part is provided with a sliding groove which extends in a direction parallel to the longitudinal axis, and a convex column is arranged on an inside wall of the housing and penetrates through the sliding groove;
wherein the main body part is capable of moving in a direction parallel to the longitudinal axis with respect to the housing, then synchronously drive the abutting part to move in a direction parallel to the longitudinal axis while the first operating part is pushed to move in a direction parallel to the longitudinal axis;
wherein the containing cavity is located among a first side wall, a second side wall and a third side wall;
wherein after the second operating part is operated and the locking switch is in the releasing position, the abutting part protrudes into and is housed within the containing cavity; and
wherein the third side wall at a rear end of the containing cavity is configured to hold the locking switch in the releasing position when a continuous pressure is applied to the second operating part to keep the main control switch being turned on.

2. The switch assembly of claim 1 , wherein
the start switch is disposed on a first side of the housing, the locking switch and the main control switch are disposed on a second side of the housing.

3. The switch assembly of claim 1 , wherein
the pivot is perpendicular to the longitudinal axis.

4. The switch assembly of claim 1 , wherein
the first operating part comprises a first operating surface and a second operating surface, wherein the first operating surface extends in a direction parallel to the longitudinal axis, and the second operating surface extends in a direction which forms an angle with the longitudinal axis; wherein
the width of the second operating surface is greater than the width of the first operating surface in a direction perpendicular to the longitudinal axis.

5. The switch assembly of claim 1 , wherein
the start switch further comprises a middle part, wherein
the middle part connects the contact part and the second operating part, and is provided with a connecting hole, and the connecting hole connects to the pivot which is arranged on an inside wall of the housing.

6. The switch assembly of claim 1 , wherein
the locking switch further comprises an elastic element, wherein
one end of the elastic element is fixed to the main body part, the other end of the elastic element is fixed to the housing, and when the locking switch is switched between the locking position and the releasing position, the elastic element is switched between a stretched state and a released state.

7. A power tool, comprising:
a work assembly, for implementing the functions of the power tool;
a drive assembly, connected with the work assembly to drive the work assembly to move;
a battery assembly, supplying power for the drive assembly; and
a switch assembly, comprising:
a housing, extending along a longitudinal axis;
a main control switch, housed within the housing;
a locking switch, connected with the housing in a sliding manner and movable between a locking position and a releasing position, wherein an angle of 0° is formed between a sliding direction of the locking switch and the longitudinal axis; and
a start switch, rotatably connected with the housing by a pivot, wherein the locking switch is in contact with the start switch when the locking switch is in the locking position and the start switch is in a locked state, and the locking switch is disengaged from the start switch when the locking switch is in the releasing position and the start switch is in a released state;

wherein the locking switch comprises:
a first operating part, protruding from the housing;
an abutting part, housed in the housing; and
a main body part connecting the first operating part and the abutting part,
wherein the abutting part extends from the first operating portion toward the start switch, and the abutting part is in contact with the start switch when the locking switch is in the locking position;

wherein the start switch comprises:
a contact part, disposed within the housing; and
a second operating part, protruding from the housing,
wherein the contact part is in contact with the main control switch, and the second operating part comprises an end surface, wherein the abutting part is in contact with the end surface of the second operating part when the locking switch is in the locking position, and the abutting part is disengaged from the end surface of the second operating part when the locking switch is in the releasing position, and wherein the second operating part is provided with a containing cavity for containing the abutting part;
wherein one end of the main body part is provided with a sliding groove which extends in a direction parallel to the longitudinal axis, and a convex column is arranged on an inside wall of the housing and penetrates through the sliding groove;
wherein the main body part is capable of moving in a direction parallel to the longitudinal axis with respect to the housing, then synchronously drive the abutting part to move in a direction parallel to the longitudinal axis while the first operating part is pushed to move in a direction parallel to the longitudinal axis;
wherein the containing cavity is located among a first side wall, a second side wall and a third side wall;
wherein after the second operating part is operated and the locking switch is in the releasing position, the abutting part protrudes into and is housed within the containing cavity; and
wherein the third side wall at a rear end of the containing cavity is configured to hold the locking switch in the releasing position when a continuous pressure is applied to the second operating part to keep the main control switch being turned on.

Assignees

• Globe Jiangsu Co Ltd

Inventors

• Wang Doushi

Classifications

• H01H21/22 Primary

  Operating parts, e.g. handle · CPC title

• B25F5/02

  Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} · CPC title

• H01H3/20

  wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling · CPC title

• H01H9/20 Primary

  Interlocking, locking, or latching mechanisms · CPC title

• H01H21/04

  Cases; Covers · CPC title