CN201222438Y - Structure of button switch - Google Patents

Abstract

A structure of a button switch comprises a base, a first fixing plate and a second fixing plate, wherein the base is provided with a through hole, and the periphery of the inner side of the base is provided with a semi-cylindrical groove; more than one terminal, which is covered by the terminal shell and is arranged in the perforation of the base; a light-emitting component is arranged in the center of the base; more than one spring, set up in the base and support the actuating assembly; the center of the action component is provided with an oblique cone perforation, and the outer side of the action component is provided with a semi-cylindrical groove which corresponds to the semi-cylindrical groove arranged on the base; more than one conductor, which is arranged on the action component and takes the shape of a bent sheet; more than one guide post is arranged in the semi-cylindrical groove of the base; an outer shell is fixed on the base; a torsion spring is arranged between the action component and the outer shell; a fluorescent plate is arranged at the upper end of the action component; and the transparent cover is matched with the fluorescent plate and arranged above the fluorescent plate. The light source is evenly diffused, when external force which is not vertically pressed down is applied, the guide post arranged on the base enables the action component and the base to keep horizontal relative positions, and the service life is prolonged.

Description

Structure of push button switch

technical field

The utility model relates to a structure of a push button switch, in particular to a function of internally setting springs, guide posts and multi-piece conductors to achieve the positioning of the switch structure and preventing tilting during action, so that the switch structure can smoothly conduct the circuit, The structure of the button switch that closes the circuit and inputs the signal.

Background technique

The general switch structure is used to conduct or close the circuit. Different structures have different conduction methods, such as pressing, button turning, pulling, etc. Among them, the pressing method is the most common because of its convenient conduction. In this way, with several keys of the same or different shapes, various signals can be input and predictable actions can be performed.

In terms of circuit conduction, the key structure of the pressing action is to use a bent conductor sheet with an insulator to deform the conductor within the elastic limit and contact the terminal to conduct the circuit. This conduction method lasts for a long time During use, the bent conductor sheet is repeatedly deformed, and fatigue stress will be generated at the bend, which shortens the service life or conduction efficiency of the conductor and the overall key structure; moreover, the key structure for pressing action usually has a base or an outer shell , and the inner housing or internal action components and the base or outer housing are usually designed with an appropriate gap so that the keys can move back and forth smoothly during use, but also because of the existence of this gap, the direction of force must be in line with the The plane of the button is vertical. If the direction of the force is shifted, the inside of the button structure will be easily stuck and the circuit cannot be turned on or off, or the same signal will be input repeatedly, which will cause many troubles when an emergency occurs. The above-mentioned existing The defects in the structure and function of the switch can no longer meet the needs of today's users, and further improvement is urgently needed.

Utility model content

The purpose of this utility model is to solve the above-mentioned various situations and problems, integrate the above-mentioned existing structures and other deficiencies, so that the button structure can move back and forth smoothly when in use, avoid the situation of tilting and stagnation, and prolong the use life.

The structure of the button switch of the utility model is realized by adopting the following technical means:

A structure of a button switch, which includes a base: the base is provided with several perforations, and the inner periphery is provided with a semi-cylindrical groove; more than one terminal is covered with a terminal shell and arranged in the perforation of the base ; There is a light-emitting component in the center of the base; more than one spring is set on the base to support the action component; an action component has an oblique cone piercing hole in the center, a semi-cylindrical groove on the outside, and a semi-cylindrical groove set on the base Corresponding to the shaped groove; more than one conductor is arranged on the action component, which is in the shape of a bent sheet; more than one guide post is arranged on the semi-cylindrical groove of the base; an outer shell is fixed on the base; A button spring is arranged between the outer shells; a fluorescent plate is arranged on the upper end of the action component; a transparent cover is arranged above the fluorescent plate in cooperation with the fluorescent plate.

The aforesaid conductor is arranged on the action component and is in the shape of a bent thin sheet, wherein the front end of the conductor is designed as a multi-piece type.

Compared with the prior art, the structure of the button switch of the present utility model has the following obvious advantages and beneficial effects:

In the structure of the button switch of the utility model, the multi-piece conductor is arranged on the action component, and the outer side of the terminal is covered with a terminal shell, and is arranged on the base. When the external force is pressed down, the action component moves downward to drive the multi-piece conductor The contact terminal is used to conduct the circuit, and when the moving component moves up and down, due to the gap between it and the base, when it receives a non-vertical downward external force, there will be a horizontal force component, which is often prone to tilting and sticking For this reason, semi-cylindrical grooves are set on the outer periphery of the action component and the inner periphery of the base at corresponding positions, and the columns are arranged together. When the action component is subjected to an external force with a horizontal force, the guide column makes the action component The position relative to the base will not be tilted; in addition, a torsion spring can be selectively set between the action component and the outer shell, and the reaction force generated by the torsion spring can be used to make the user's hand have a frustrating feel to simulate the feedback of pressing down Due to the design of the bent conductor sheet, when it is used, it is repeatedly deformed, and fatigue stress will be generated at the bend, which will shorten the life of the conductor and the overall key structure or conduction efficiency. Therefore, the front end of the conductor is multi-piece The design of the formula makes the fatigue stress generated at the conductor bending place distributed in each support piece, and avoids the concentration of fatigue stress, which shortens the service life of the conductor.

Description of drawings

Fig. 1 is the perspective view of the utility model;

Fig. 2 is the three-dimensional system diagram of the present utility model;

Fig. 3 is a sectional view of the utility model;

Fig. 4 is a sectional view of the utility model.

Detailed ways

The specific embodiment of the utility model is described below in conjunction with accompanying drawing:

The structure of a button switch of the present utility model, please refer to Fig. 1-Fig. Terminal 51, terminal housing 511, guide post 52, light emitting component 53, spring 54;

Please refer to Fig. 2 to describe the relative position of each component in detail. The base 5 is provided with several perforations for passing through the light-emitting component 53 and the terminal 51. Forming and covering the outside of the terminal to form a terminal housing 511, the terminal 51 is tightly fitted with the base 5 by using the terminal housing 511, the guide post 52 is arranged in a semi-cylindrical groove on the inner periphery of the base 5, and springs are provided on both sides of the light emitting component 53 54 to support the action component 4 and the upper end load; the center of the action component 4 is provided with an oblique cone perforation for guiding the light source, and its outer shell 3 and action component 4 are all provided with horizontal perforations for setting the torsion spring 31, and the conductor 41 is in the form of Bending sheet shape, the front end is a multi-piece design, the upper end is provided with two perforations, which cooperate with the two protrusions arranged on the action component 4, and the outer shell 3 with perforations on the side edge, and cooperates with the catch set on the outside of the base 5 It is fixed on the upper end of the base 5 , and the transparent cover 1 is arranged on the upper end of the action component 4 in conjunction with the fluorescent plate 2 .

Please refer to Fig. 3 and Fig. 4, when the user exerts an external force vertically downward on the transparent cover 1, according to the user's needs, a torsion spring 31 can be arranged between the action component 4 and the outer casing 3, and the torsion spring 31 Under the shear force generated by the relative movement of the action component 4 and the outer shell 3, the button is turned downward, and a reaction force is generated instantly to offset part of the external force of the downward pressure, making the user feel frustrated. As shown in Figure 4, the spring 54 is compressed downward, and the action assembly 4 moves downward, so that the conductor 41 arranged on the action assembly 4 contacts the terminal housing 511, and the conductor 41 bends inwardly and contacts the terminal 51, and conducts the circuit; as shown in Figure 3, when the When the external force of vertical downward pressure is applied, the spring 54 moves the action component 4 upwards, and the conductor 41 returns to the unstressed state to close the circuit; while the light emitting component 53 emits a light source, which is guided by the oblique cone hole of the action component 4. The light source is evenly diffused by the fluorescent plate 2 , and the user can observe the average and stable light source through the transparent cover 1 .

When the button switch is subjected to a non-vertical downward pressure, the horizontal component force generated will cause the action component to be obliquely stuck and interfere with the outer shell or the base. Perimeter, vertical semi-cylindrical groove is set, and guide post 41 is set in the groove, when receiving the external force of non-vertical downward pressure, guide post 41 restricts the relative position of action component 4 and base 5 to be parallel state and not There will be a phenomenon of inclination, so that when the action component 4 moves back and forth up and down, it can still maintain a parallel state with the base 5 without deviation and inclination. Within the elastic limit, after long-term use, it has been repeatedly bent for millions of times, and its bends are easily damaged or permanently deformed due to fatigue stress. Therefore, the front end of the conductor 41 is designed to be multi-piece, so that the conductor 41 Stress is applied individually at the bends to avoid the concentration of fatigue stress and prolong the service life.

Finally, it should be noted that: the above embodiments are only used to illustrate the utility model rather than limit the technical solution described in the utility model; therefore, although the description has described the utility model in detail with reference to the above-mentioned various embodiments, Those of ordinary skill in the art should understand that the utility model can still be modified or equivalently replaced; and all technical solutions and improvements that do not depart from the spirit and scope of the utility model should be covered by the claims of the utility model among.

Claims (2)

1. the structure of a push-button switch, it includes a base: it is characterized in that:

Described base is provided with several perforation, and inboard periphery is provided with semi-cylindrical recesses;

More than one terminal coats with terminal shell, is arranged at the perforation of base;

Be provided with luminescence component in described base central authorities;

Be provided with more than one spring at the base support action component;

One action component, central authorities are oblique cone perforation, the outside is provided with semi-cylindrical recesses, and is corresponding with the semi-cylindrical recesses that is arranged at base;

More than one conductor is arranged at action component, and it is laminar to be bending;

More than one guide pillar is arranged at the semi-cylindrical recesses of base;

On base, be fixed with a shell body;

Between action component and shell body, be provided with a button spring;

Be provided with a fluorescent plate in the action component upper end;

One transparency cover is equipped with in the fluorescent plate top with fluorescent plate.

2, according to the structure of the described a kind of push-button switch of claim 1, it is characterized in that: conductor is arranged at action component, and it is laminar to be bending, and wherein this conductor Front-end Design is a multiple-piece.

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