KR200220983Y1 - Pushbutton switch - Google Patents

Abstract

The present invention relates to a pushbutton switch with improved operation feel by simplifying the structure of the switch and improving the contact method. The top side is made of a box-shaped heat-resistant electrical insulating material, and at the same time, the side fixed contact point and the center fixed contact point are located on the inner bottom. An exposed case, a plate spring positioned on the side fixed contact point and the center fixed contact of the case, and having a convex elastic member formed at the center thereof, a button elastically contacting the plate spring, and a frame coupled to the case. In the pushbutton switch, the case has a side opening and at the same time the fixing projections are formed on both sides, the frame is made of stainless steel plate through the rectangular hole inside and at the same time both sides of the fixing projections and caulking A defective caulking groove is formed, and the button is Consists of a head portion inserted into the hole of the frame, a body portion inserted into the case and a protrusion portion elastically contacting the elastic member of the leaf spring, and the on / off operation is performed by horizontal movement of the button by left and right horizontal movements. Shall be.

Description

Pushbutton switch

1 is an exploded perspective view showing a conventional pushbutton switch.

2 is a perspective view showing a conventional pushbutton switch.

Figure 3 is an exploded perspective view showing a pushbutton switch according to the present invention.

4 is a view showing a pushbutton switch according to the present invention,

4 (a) is a perspective view.

4 (b) is a cross-sectional view of part A-A of FIG. 4 (a).

* Explanation of symbols for main parts of the drawings

100: case 101: fixing protrusion

102: side fixed contact 103: center fixed contact

104: output terminal 200: leaf spring

201: elastic member 300: frame

301: hole 302: caulking groove

303: terminal 400: button

401: head 402: body

403: projection

The present invention relates to a pushbutton switch, and more particularly, to a pushbutton switch in which accurate operation is performed by simplifying the structure of a button and a frame and improving a contact method.

In general, the push button switch, the button and the leaf spring is located in the frame coupled to the case, the sliding phenomenon caused by the push of the button is in contact with the contact portion of the case and the leaf spring is in electrical contact with the power on / off The operation will be repeated.

Referring to FIGS. 1 and 2 of the accompanying drawings, a conventional pushbutton switch performing the above operation is as follows.

Figure 1 shows an exploded perspective view of a conventional pushbutton switch, Figure 2 shows a perspective view of a conventional pushbutton switch, reference numeral 10 denotes a case, 20 a leaf spring, 30 a spacer, 40 a button, 50 Each represents a frame.

First, the case 10 is formed of a box-shaped heat-resistant electrical insulating material having an open upper surface, and is formed by exposing side fixed contacts 11 and central fixed contacts 12 on the inner bottom thereof, and output terminals on both sides thereof. 13 is protruded horizontally, and the lower surface of the rectangular corner is formed by recessing portions 14 respectively recessed inward.

In addition, the plate spring 20 of the stainless steel positioned on the side fixed contact 11 and the center fixed contact 12 of the case 10, the elastic member 21 formed in the center portion is convexly protruded upwards. Normally, the spacer 30 positioned on the leaf spring 20 is spaced apart from the center fixed contact 12 of the case 10, and the case 10 in which the leaf spring 20 is accommodated. It is in close contact with the upper surface of) to ensure airtightness.

In addition, the button 40 seated inside the case 10 in which the spacer 30 and the leaf spring 20 are accommodated includes a head 41 that receives an external force, a head 41, and one end. The connected elastic beam 42, the projection portion 43 protruding from the other end of the elastic beam 42, and the case insertion portion 44 in the shape of a rectangular ring on the outer peripheral surface of the elastic beam 42 It is made to include.

In addition, the frame 50 coupled to the button 40 has four fixing members 51 formed on both sides thereof by being clamped and fixed to the locking portion 14 of the case 10, and have a square in the center. The drawing-processing pressing member 52 of the shape is protruded downward and at the same time positioned in contact with the elastic beam 42.

Referring to the operation of the conventional pushbutton switch having the above structure as follows.

When an external force in the horizontal direction is applied to the head portion 41 of the button 40, the external force is applied to the protrusion 43 of the elastic beam 42, which is in contact with the right side position slightly from the center of the leaf spring 20. The protrusion 43 is moved to the left to press the elastic member 21 at the center of the leaf spring 20, and at the same time, the elastic member 21 is lowered by the pressing load of the protrusion 43. The elastic deformation is caused in the direction to make contact with the center fixed terminal of the case 10 is in the energized state.

At this time, the pressing member 52 formed in the center of the frame 50, the elastic member 42 is pushed to the left side when the external force is applied to the head 41 of the button 40, the elastic member 21 It prevents the phenomenon of lifting up along the outer circumferential surface of the) and at the same time serves to guide the horizontal movement of the elastic beam 42 in the horizontal direction.

On the other hand, after the power is supplied, the elastic member 21 is restored while the button is pushed back in the opposite direction by the elastic energy of the pressing member 52 and the elastic member 21 of the frame 50. Power is cut off.

However, in the conventional pushbutton switch having the above structure, the on / off operation of the switch is performed by the external force applied to the head of the button, thereby making electrical connection by sliding the left and right sides of the elastic beam, and thus it is difficult to obtain a good operating feel. There is a problem that the complexity is lowered productivity.

The present invention has been made to solve the above problems, the object of the present invention is to provide a push button switch with improved operation feel by simplifying the structure of the switch and improving the contact method.

Push button switch according to the present invention for achieving the above object is made of a box-shaped heat-resistant electrical insulating material with an open upper surface and at the same time the side fixed contact and the central fixed contact formed on the inner bottom surface, and the side of the case A push-button switch comprising a leaf spring positioned on a fixed contact point and a center fixed contact point, and having a convex elastic member formed at a center thereof, a button elastically contacting the leaf spring, and a frame coupled to the case. The side has an opening and at the same time the fixing projections are formed on both sides, the frame is made of stainless steel plate and a rectangular hole is penetrated therein and at the same time both sides are formed with a caulking coupling with the fixing projections of the case, the button Shovel into the case and the head inserted into the hole of the frame The body portion and the plate made of an elastic member with the projection in contact with the elastic spring, characterized in that the on / off operations made in the left-right horizontal movement by the pressure of the pressing button.

Referring to the pushbutton switch according to the present invention having the features as described above with reference to FIGS. 3 and 4 as follows.

Figure 3 shows an exploded perspective view of the pushbutton switch according to the present invention, Figure 4 shows a pushbutton switch according to the present invention, Figure 4 (a) is a perspective view, Figure 4 (b) is a fourth (a A cross sectional view of part AA is shown, reference numeral 100 denotes a case, 200 denotes a leaf spring, 300 denotes a frame, and 400 denotes a button.

First, the case 100 is formed of a box-shaped heat-resistant electrical insulating material having an open side and at the same time, fixing protrusions 101 are formed on both sides thereof, and the side fixing contact 102 and the central fixing contact 103 are formed on the inner bottom. It is formed to be exposed, the output terminal 104 is configured to be exposed to the outside of the case 100 on the lower surface of the case 100.

In addition, the plate spring 200 made of stainless steel positioned on the side fixing contact 102 and the central fixing contact 103 of the case 100, the elastic member 201 formed in the center portion is convexly protruded upwards. In general, the case 100 is spaced apart from the central fixed contact 103 of the case 100.

In addition, the frame 300 is formed of a stainless steel plate, the inside of the rectangular hole 301 is penetrated at the same time both sides of the caulking groove 302 is formed with the caulking coupling of the fixing projection 101 of the case 100 is formed The terminal portion 303 having a grounding function protrudes from a lower surface thereof.

In addition, the button 400 is inserted into the hole 301 of the frame 300 receives the external force head 401 and the body portion 402 and the leaf spring 200 is inserted into the case 100 The protrusion 403 is in elastic contact with the elastic member 201 of the.

Referring to the operation of the pushbutton switch according to the present invention made of a structure as described above are as follows.

When an external force in a horizontal direction is applied to the head 401 of the button, the external force is transmitted to the protrusion 403 which is in contact with the elastic member 201 of the leaf spring 200 to the At the same time as pressing the elastic member 201, the convex elastic member 201 by the pressure causes the elastic deformation to come into contact with the central fixed contact 103 of the case 100 is in an energized state.

On the other hand, if the external force applied to the head 401 of the button 400 is removed after the power is applied, the leaf spring 200 is restored by the self-elastic force of the elastic member 201 and at the same time the button 400 ), The miller power is cut off in the opposite direction.

As described above, according to the pushbutton switch according to the present invention, the structure of the frame and the button is simplified, and the on / off operation by the conventional sliding method is improved by the point contact method by pressing the button, thereby improving the operation feeling. In addition, the terminal portion protruding from the lower surface of the frame is shared with the ground terminal, thereby improving the reliability and productivity of the product.

Claims (3)

A case formed of a box-shaped heat-resistant electrical insulating material having an open upper surface and having exposed side fixed and center fixed contacts on the inner bottom thereof, and a convex elasticity located at the same time as being positioned on the side fixed and central fixed contacts of the case; In the push-button switch comprising a plate spring formed with a member, a button in elastic contact with the plate spring, and a frame coupled to the case, the case has a side opening and at the same time a fixing projection is formed on both sides, The frame is made of a stainless steel plate and a rectangular hole is penetrated therein, and a caulking groove is formed on both sides thereof to be caulked with the fixing protrusion of the case, and the button is inserted into the head and the case inserted into the hole of the frame. A stone which is elastically in contact with the elastic member of the body and the leaf spring Parts made, a push button switch, characterized in that the on / off operations made in the left-right horizontal movement by the pressure of the pressing button. The pushbutton switch of claim 1, wherein an output terminal is exposed to an outer side of a lower surface of the case. The pushbutton switch of claim 1, wherein a terminal part having a grounding function is protruded from a lower surface of the frame.