CN201084594Y - Button switch - Google Patents

Abstract

The utility model discloses a button switch, which comprises a cover body, a button, a movable contact, a fixed contact and a casing; wherein, the fixed contact is arranged on the bottom of the casing; the movable contact is arranged inside the casing and up the fixed contact; the button comprises a pressing part, a stop part and a connecting part; at least one contact part is arranged on and convex to the bottom surface of the button connecting part.

Description

power switch button

【Technical field】

The utility model relates to a button switch, in particular to a button switch applied to a portable electronic device to realize circuit switching.

【Background technique】

The button switch usually pushes the elastic conductive component through the button to make the elastic conductive component contact the fixed conductive component, so as to realize the closing of the circuit.

Please refer to Figures 7 to 10, the existing push button switch 10', which includes: a housing 1', a cover body 5', a fixed contact 2', a movable contact 3' and a button 4 that can deform the movable contact 3' ', the button 4' includes a pressing part 41', a stop part 44' and a contact part 42', the contact part 42' and the stop part 44' are coaxial, and the pressing part 41' and the stop part 44' are connected in series . Wherein the stopper 44' is a flat cylinder, and the side against the cover body 5' is the upper surface 444', and the opposite to the upper surface 444' is the bottom surface 441', and the areas of the upper surface 444' and the bottom surface 441' are equal The contact part 42' protrudes from the bottom surface 441' of the stop part 44' to contact the movable contact 3', and the movable contact 3' can be elastically deformed by pressing the central position of the pressing part 41' of the button 4', and then The contact portion 42' of the button 4' presses the movable contact 3' onto the fixed contact 2' to realize the conduction of the button switch.

However, during use, as shown in FIG. 10, if the user presses the edge position of the pressing part 41' of the button 4', the button 4' will be inclined accordingly, so that the bottom surface 441 of the stopper part 44' of the button 4' The outer edge of ' will also be in contact with the movable contact 3', forming two pressings of the touch.

【Content of utility model】

The purpose of the utility model is to provide a button switch which can reduce the feeling of pressing twice.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a push button switch mainly includes: a cover body, a housing, a fixed contact, a movable contact and a button. The button includes a pressing part, a stopping part and a connecting part, and the pressing part, the stopping part and the connecting part are arranged coaxially and are all oblate cylinders with different radii. The movable contact is placed between the fixed contact and the button, and the movable contact is brought into contact with the fixed contact by pressing the button. Wherein, the connecting part of the button is further provided with more than one contact part protruding from the lower surface of the connecting part.

Compared with the prior art, the push button switch of the present utility model has the following beneficial effects: the bottom surface of the connecting part of the button is provided with more than one protruding contact part. During use, when the user presses the edge position of the push part of the button, The button is supported by the contact part and is not prone to inclination, and the outer edge of the bottom surface of the stopper part will not contact the movable contact, so the probability of secondary hand feeling pressing is reduced.

【Description of drawings】

Fig. 1 is a three-dimensional exploded view of the button switch of the present invention.

Fig. 2 is a three-dimensional exploded view of the button switch shown in Fig. 1 from another angle.

Fig. 3 is a three-dimensional assembled view of the button switch shown in Fig. 1 .

Fig. 4 is a side view of the push button switch shown in Fig. 1 .

Fig. 5 is a side view from another angle of the push button switch shown in Fig. 1 .

Fig. 6 is a sectional view of the push button switch shown in Fig. 1 along line VI-VI in Fig. 3 .

Fig. 7 is an exploded perspective view of a conventional push button switch.

Fig. 8 is a front view of the button in the push button switch shown in Fig. 7 .

Fig. 9 is a perspective view of the button switch shown in Fig. 7 .

Fig. 10 is a cross-sectional view of the push button switch along line X-X in Fig. 9 when the edge of the push part of the push button is pressed.

【Detailed ways】

Please refer to FIG. 1 to FIG. 6 , the push button switch 1 usually controls the contact between the movable contact 30 and the fixed contact 40 through the button 20 to realize the conduction of the circuit, which mainly includes: a cover body 10 , a button 20 , and a movable contact 30 , the fixed contact 40 and the housing 50 .

The cover body 10 is made of a metal material formed at one time, and includes a roughly square top surface 101, a circular hole 102 is opened at the center of the top surface 101, and the two opposite sides of the top surface 101 are bent downwards and extend , forming a clamping portion 103 , and a clamping hole 104 is opened at a middle position of the clamping portion 103 . A side edge of the top surface 101 adjacent to the two holding portions 103 is bent downwards in the middle to extend a connecting piece 105 , and a free end of the connecting piece 105 is bent horizontally to form a tail portion 106 .

The button 20 includes a pressing part 201, a stop part 202, a connecting part 203 and a contact part 204, wherein the pressing part 201, the stopping part 202 and the connecting part 203 are in the shape of oblate cylinders with different diameters, and the pressing part 201 and the connecting part 203 are coaxially disposed on the top surface and the bottom surface of the stop portion 202 respectively, and the contact portion 204 protrudes from the bottom surface of the connecting portion 203 .

The movable contact 30 is a circular metal material, divided into a top 301 and a peripheral part 302, the top 301 is connected with the edge of the peripheral part 302, and the top 301 is slightly arched to form a small arc.

The fixed contact 40 includes a peripheral contact 401 and a central contact 402. The peripheral contact 401 is provided with a first extension 4010, and the two ends of the first extension 4010 are bent and extended to form a first welding part 4011. Sides are provided with peripheral contact portions 4012 parallel to each other. The central contact 402 is provided with a second extension 4020 , both ends of the second extension 4020 are bent and extended laterally to form a second weld 4021 , and the middle part of the second extension 4020 is vertically provided with a central contact 4022 .

The casing 50 is a cube made of plastic material, including a roughly square bottom 501, and a side wall 502 protruding upward from the side of the bottom 501. The bottom 501 and the side wall 502 together form a receiving space 503. The receiving space 503 is used for receiving the movable contact 30 and the fixed contact 40 . The bottom 501 sinks downwards toward the receiving space 503 to form a circular sunken part 5010. The circular center of the sunken part 5010 is provided with a first groove 5011, and the two sides of the first groove 5011 are symmetrically distributed with second concaves. Groove 5012. On the two opposite side walls 502 , there are protruding locking portions 5020 for matching with the locking holes 104 of the cover body 10 and having a wedge-shaped structure.

When assembling the push button switch 1 , the fixed contact 40 is put into the receiving space 503 , and the central contact portion 4022 is located between the two peripheral contact portions 4012 . The movable contact 30 is placed on the fixed contact 40 , and the button 20 and the fixed contact 40 are respectively located on the top surface and the bottom surface of the movable contact 30 . The cover 10 is buckled on the housing 50 , wherein the clamping hole 104 of the cover 10 and the clamping portion 5020 of the housing 50 are engaged with each other, and the pressing portion 201 of the button 20 extends out through the hole 102 of the cover 10 The upper surface of the cover 10. When in use, when the user presses the central position of the pressing part 201 of the button 20, the button 20 will drop accordingly, and the contact part 204 of the button 20 will contact the movable contact 30, causing the movable contact 30 to produce elastic deformation, and then make the movable contact 30 The contact 30 contacts the fixed contact 40 to realize the conduction of the button switch 1 . When the user presses the edge position of the pressing part 201 of the button 20, the button 20 descends and tilts at a certain angle. Since the contact part 204 is evenly distributed on the bottom surface of the connecting part 203, the contact area between the contact part 204 and the movable contact 30 expands. The supporting area of the contact portion 204 for the button 20 is also enlarged accordingly, so the inclination angle of the stop portion 202 is reduced to make it difficult to contact with the movable contact 30 , reducing the probability of secondary hand pressing.

The above is only a preferred embodiment of the utility model, and any improvement made on the premise of the idea of the utility model is within the scope of protection of the utility model.

Claims (7)

1. A button switch, which mainly includes: a cover, a button, a movable contact, a fixed contact and a housing, the fixed contact is arranged at the bottom of the housing, the movable contact is accommodated in the housing and is arranged above the fixed contact, and the button includes The pressing part, the stopping part and the connecting part are characterized in that: the bottom surface of the connecting part of the push button is provided with more than one contact part. 2. The push button switch according to claim 1, wherein the surface of the contact portion is smooth and arc-shaped. 3. The push button switch according to claim 1, characterized in that: the connection part of the button protrudes from the bottom surface of the stop part. 4. The push button switch according to claim 1, characterized in that: the pressing part, the stop part, the connecting part and the contact part of the button are arranged coaxially. 5. The push button switch according to claim 1, wherein the pressing part, the stop part and the connecting part of the button are all oblate cylinders with different radii. 6 . The push button switch according to claim 1 , wherein a connecting piece is bent and extended downward on one side of the top surface of the cover body, and a tail is bent at the end of the connecting piece. 7 . 7. The push button switch according to claim 1, wherein the outer edge of the bottom surface of the stopper part of the button is exposed to the contact part.

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