CN216389153U

CN216389153U - Rotary knob switch

Info

Publication number: CN216389153U
Application number: CN202122880083.6U
Authority: CN
Inventors: 朱彩霞
Original assignee: Shenzhen Weiteshijia Technology Co ltd
Current assignee: Shenzhen Weiteshijia Technology Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-04-26
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a knob switch which comprises a switch through hole formed in a shell of an equipment body, a switch body sleeved in the switch through hole and a circuit board assembly arranged in the equipment body, wherein the switch body comprises a switch base, a conductive elastic sheet is fixed at the lower end of the switch base, the circuit board assembly is arranged below the conductive elastic sheet, a switch contact is packaged on the circuit board assembly, an elastic arm is arranged on the conductive elastic sheet, a convex point is arranged on the elastic arm, and the switch body is rotatably connected with the switch through hole. The utility model has simple and reasonable structural design, convenient production and assembly and low cost, and is suitable for a large number of common applications; the conductive elastic sheet is elastically connected with the switch contact on the circuit board assembly in an abutting mode, so that the circuit is stably connected and durable; meanwhile, a stepping positioning device is arranged in the rotation stroke of the knob switch, so that the switch is controlled more accurately.

Description

Rotary knob switch

Technical Field

The utility model relates to the technical field of switches, in particular to a knob switch.

Background

The words switch are to be interpreted as open and closed. It also refers to an electronic component that can open a circuit, interrupt a current, or cause it to flow to other circuits. The most common switches are electromechanical devices operated by a person, in which there are one or several electrical contacts. The "closed" of a contact means that the electronic contact is conductive, allowing current to flow; an "open" of the switch indicates that the electrical contact is not conductive, creating an open circuit, and not allowing current to flow.

The existing switch generally has the phenomena of insensitive induction or high manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a knob switch which is mechanically designed, elastically contradicts to communicate with a circuit, is stable in performance and durable, is simple in product structural design and low in manufacturing cost, and solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a turn-knob switch, includes the switch through-hole of seting up on equipment body casing, overlaps the switch body of locating in the switch through-hole and sets up in the inside circuit board subassembly of equipment body, the switch body includes the switch base, switch base lower extreme is fixed with the conduction shell fragment, circuit board subassembly sets up in conduction shell fragment below, be packaged with the switch contact on the circuit board subassembly, be provided with the elastic arm on the conduction shell fragment, be provided with the bump on the elastic arm, the switch body rotates with the switch through-hole to be connected during the switch body rotates the stroke, when bump and switch contact coincide, the bump is connected with switch contact elastic conflict, be provided with step-by-step positioner in the switch body rotates the stroke.

Preferably, the switch base comprises a connecting seat, and a decorative switch cap and a spring plate base which are respectively and fixedly connected to the upper end face and the lower end face of the connecting seat, and the conductive spring plate is installed on the surface of the lower end of the spring plate base.

Preferably, the conduction shell fragment is annular shell fragment, the elastic arm is provided with two, two elastic arms arrange in annular shell fragment same diameter both ends position department, the switch contact is provided with the multiple department, and arranges on bump stroke orbit.

Preferably, the stepping positioning device comprises a plurality of positioning clamping grooves arranged in the switch through hole and facing the switch body and an elastic thimble arranged on the switch body, and the elastic thimble is connected with the positioning clamping grooves in a buckling manner.

Preferably, the plurality of positioning clamping grooves are formed in the same rotating plane, one elastic thimble is arranged, and the elastic thimble is movably clamped on the plurality of positioning clamping grooves.

Compared with the prior art, the utility model has the following beneficial effects:

the structure design is simple and reasonable, the production and the assembly are convenient, the cost is low, and the device is suitable for a large amount of common application; the conductive elastic sheet is elastically connected with the switch contact on the circuit board assembly in an abutting mode, so that the circuit is stably connected and durable; meanwhile, a stepping positioning device is arranged in the rotation stroke of the knob switch, so that the switch is controlled more accurately.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a perspective view of the present invention.

In the figure: 1, a shell; 11 switching through holes; 12 positioning the clamping groove; 2, a switch body; 21 a switch base; 211 decorating the switch cap; 212 a connecting seat; 213 elastic thimble; 214 a spring plate base; 3, a device body; 4, a circuit board assembly; 41 a switch contact; 5 a conductive spring sheet; 51 salient points; 52 resilient arms.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a turn-knob switch includes a switch through hole formed in a housing 1 of an apparatus body 3, a switch body 2 fitted in the switch through hole, and a circuit board assembly 4 disposed inside the apparatus body 3, the switch body 2 comprises a switch base 21, a conductive elastic sheet 5 is fixed at the lower end of the switch base 21, the circuit board assembly 4 is arranged below the conductive elastic sheet 5, a switch contact 41 is packaged on the circuit board assembly 4, the conductive elastic sheet 5 is provided with an elastic arm 52, the elastic arm 52 is provided with a salient point 51, the switch body 2 is rotatably connected with the switch through hole, in the rotation stroke of the switch body 2, when the salient point 51 is coincided with the switch contact 41, the salient point 51 is elastically abutted and connected with the switch contact 41, so that the circuit is communicated, the product circuit control switch is conducted and started, and the switch body 2 is provided with a stepping positioning device in the rotation stroke.

Step-by-step positioner is including setting up in the switch through-hole and towards a plurality of positioning channel section 12 that switch body 2 set up and setting up the elasticity thimble 213 on switch body 2, elasticity thimble 213 is connected with positioning channel section 12 buckle, a plurality of positioning channel section 12 set up on same rotation plane, elasticity thimble 213 is provided with one, elasticity thimble 213 activity clamps on a plurality of positioning channel section 12, can fix the position between switch body 2 and the casing 1, can also guarantee circuit intercommunication or off-state's stability when letting on-off control more accurate.

The switch base 21 comprises a connecting base 212, and a decorative switch cap 211 and a spring plate base 214 which are respectively and fixedly connected to the upper end face and the lower end face of the connecting base 212, the conductive spring plate 5 is installed at the lower end surface of the spring plate base 214, the conductive spring plate 5 is an annular spring plate, two elastic arms 52 are arranged, the two elastic arms 52 are arranged at two ends of the annular spring plate with the same diameter, and the switch contact 41 is provided with a plurality of positions and is arranged on the stroke track of the salient point 51. The number of the switch contacts 41 is determined by the number of control gears and control circuits, so that control over different gears and different functions can be realized, and the practicability is high.

In summary, the following steps: the utility model has simple and reasonable structural design, convenient production and assembly and low cost, and is suitable for a large number of common applications; the conductive elastic sheet is elastically connected with the switch contact on the circuit board assembly in an abutting mode, so that the circuit is stably connected and durable; meanwhile, a stepping positioning device is arranged in the rotation stroke of the knob switch, so that the switch is controlled more accurately.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a turn-knob switch, includes the switch through-hole of seting up on casing (1) of equipment body (3), overlaps switch body (2) of locating in the switch through-hole and sets up in inside circuit board subassembly (4) of equipment body (3), its characterized in that: the switch body (2) comprises a switch base (21), a conduction elastic sheet (5) is fixed to the lower end of the switch base (21), the circuit board assembly (4) is arranged below the conduction elastic sheet (5), a switch contact (41) is packaged on the circuit board assembly (4), an elastic arm (52) is arranged on the conduction elastic sheet (5), a salient point (51) is arranged on the elastic arm (52), the switch body (2) is rotatably connected with a switch through hole, when the salient point (51) is coincident with the switch contact (41), the salient point (51) is elastically abutted against the switch contact (41) and is connected, and a stepping positioning device is arranged in the rotation stroke of the switch body (2).

2. A rotary knob switch according to claim 1, wherein: the switch base (21) comprises a connecting base (212), and a decorative switch cap (211) and a spring plate base (214) which are respectively and fixedly connected to the upper end face and the lower end face of the connecting base (212), and the conductive spring plate (5) is installed on the lower end surface of the spring plate base (214).

3. A rotary knob switch according to claim 1, wherein: the conductive elastic sheet (5) is an annular elastic sheet, the number of the elastic arms (52) is two, the two elastic arms (52) are arranged at the positions of two ends of the annular elastic sheet with the same diameter, and the switch contact (41) is provided with a plurality of positions and arranged on a stroke track of the salient point (51).

4. A rotary knob switch according to claim 1, wherein: the stepping positioning device comprises a plurality of positioning clamping grooves (12) which are arranged in the switch through hole and are arranged towards the switch body (2) and an elastic thimble (213) which is arranged on the switch body (2), wherein the elastic thimble (213) is connected with the positioning clamping grooves (12) in a buckling mode.

5. A rotary knob switch according to claim 4, wherein: the plurality of positioning clamping grooves (12) are arranged on the same rotating plane, one elastic thimble (213) is arranged, and the elastic thimble (213) is movably clamped on the plurality of positioning clamping grooves (12).