CN105336520A - Intelligent electrical switch - Google Patents

Abstract

The invention relates to an intelligent electric switch with simple structure, convenient installation and small volume, which comprises a shell, a circuit board and a pressing plate, wherein the shell is provided with an accommodating cavity capable of accommodating the pressing plate, more than three elastic supporting arms are arranged in the accommodating cavity, the fixed ends of the elastic supporting arms are connected with the inner wall of the accommodating cavity, the movable ends of the elastic supporting arms extend to the inner side of the pressing plate, the movable ends of the elastic supporting arms uniformly support the inner side of the pressing plate to keep the pressing plate balanced during action, and the pressing plate is reset under the elastic action of the elastic supporting arms after being pressed down.

Description

Smart Electrical Switch

technical field

The invention relates to an intelligent electric switch.

Background technique

The existing intelligent electrical switch is composed of a casing, a circuit board and a button, wherein the circuit board is provided with an electronic circuit for receiving radio signals and controlling the on-off of the main circuit, wherein the button is fastened on the casing and is connected to the contact in the circuit board. The switch cooperates to realize manual operation so that it can be used when the wireless remote control switch fails or the user does not know how to use the smart electrical switch. The main structure is to set a reset metal pressure spring between the shell and the pressure plate. When the pressure plate is pressed, the inner side of the pressure plate will close the touch switch. The circuit in the trigger circuit board controls the on or off of the main circuit, and the pressure plate resets under the action of the spring force after letting go; in order to save costs and improve production efficiency, generally only one spring is used between the pressure plate and the shell, and for the convenience of users , the press plate area of the button is relatively large, so the outer diameter of the spring used should be as large as possible to make the pressing feel better, otherwise the press plate will be unbalanced when pressed, and the spring must have enough effective turns; so the existing Smart electrical switches have the disadvantages of large size and low production efficiency.

Contents of the invention

The object of the present invention is to provide an intelligent electric switch with simple structure, convenient installation and small volume in order to solve the problems of too large volume and low production efficiency existing in the existing intelligent electric switch.

The object of the present invention is achieved in this way: an intelligent electrical switch includes a casing, a circuit board and a pressure plate, and an accommodating chamber for accommodating the pressure plate is opened on the casing, and three In the above elastic support arm, the fixed end of the elastic support arm is connected to the inner wall of the accommodating cavity and the movable end extends to the inner side of the pressure plate, and the movable end of each elastic support arm evenly supports the inner side of the pressure plate so that The pressing plate maintains balance during action, and the pressing plate resets under the action of the elastic force of the elastic support arm after being pressed down.

The movable end of the elastic support arm is provided with a bar-shaped hole, and the inner side of the pressure plate is respectively provided with clips extending into the bar-shaped hole, and the width of the clip is slidably matched with the width of the bar-shaped hole. During the movement of pressing down or resetting, the pressing plate is guided smoothly under the interaction between the chuck and the strip-shaped hole, so that the pressing plate can move smoothly.

The outer shell is composed of a bottom case and a pressure plate seat, the circuit board is fixed in the inner cavity of the bottom case, the accommodating cavity is arranged in the pressure plate seat, and the bottom case and the pressure plate are fastened and connected .

The inner side of the pressure plate seat is also equipped with a mounting frame, which is snap-fit connected with the press plate seat, and the mounting frame is snap-fit connected with the bottom case.

The bottom case is also equipped with a cover plate, and the cover plate is buckled and connected with the bottom case.

The material of the platen seat is plastic.

Owing to adopting the technical scheme described in the present invention, the sheet-shaped elastic support arm is directly arranged on the casing or the pressing plate seat (because the action distance of the pressing plate is small), so the thickness of the casing can be small so that the entire intelligent electrical switch The volume is reduced, and multiple elastic support arms can be used to increase the stability of the pressure plate during movement, especially when the elastic support arm is equipped with a strip hole to match the chuck inside the pressure plate, its stability is better. There is no need to install springs in the assembly process, which can improve production efficiency.

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments.

Fig. 1 is a three-dimensional exploded view of a specific embodiment of the smart electrical switch of the present invention.

Fig. 2 is a perspective view of the assembled components in Fig. 1 .

Fig. 3 is a three-dimensional enlarged view of the platen seat in Fig. 1 .

FIG. 4 is an enlarged perspective view of the circuit board in FIG. 1 when it is fixed in the cavity surrounded by the bottom case and the cover plate.

Fig. 5 is a perspective view after fastening the mounting frame in Fig. 1 to Fig. 4 .

FIG. 6 is an enlarged perspective view of the pressing plate 21 in FIG. 1 .

Fig. 7 is a perspective view from another angle of Fig. 6 .

FIG. 8 is a perspective enlarged view of another angle of the pressing plate 20 in FIG. 1 .

Fig. 9 is an orthographic view of the platen seat in Fig. 1 .

Among the figure 11, bottom case, 3, circuit board, 30, 31, 32, 33, 34, touch switch, 12, cover plate, 13, installation frame, 4, pressure plate seat, 20, 21, 22, 23, 24, Pressing plate, 25, light guide column, 40, 41, 42, 43, 44, accommodating cavity, 400, through hole, 401, 402, 403, 404, 411, 412, 413, 414, 415, 416, elastic support arm, 217, 218, 219, limit boss, 210, pressure head, 211, 212, 213, 214, 215, 216, clamp head, 200, pressure head, 201, 202, 203, 204, clamp head, 499, bar shaped hole.

detailed description

As shown in Fig. 1, it is a five-connected (with five groups of touch switches) intelligent electrical switch, including a circuit board 3, five pressure plates 20, 21, 22, 23, 24, consisting of a bottom case 11, a cover plate 12, and a mounting frame 13 and the shell that platen seat 4 constitutes, wherein circuit board 3 is fixed in the inner cavity that is surrounded by bottom case 11 and cover plate 12, the control head of five touch switches 30,31,32,33,34 on the circuit board Respectively protrude through five through holes on the cover plate as shown in FIG. 4 .

With reference to Fig. 3 and Fig. 9, the pressure plate seat constituting a part of the shell is provided with five accommodating cavities 40, 41, 42, 43, 44 respectively matched with the pressure plates 20, 21, 22, 23, 24 in Fig. 1, each accommodating There are different numbers of elastic support arms in the cavity, among which four elastic support arms 401, 402, 403, 404, and the other housing chamber 41 is provided with four elastic support arms 411, 412, 413, 414 stretched out through the center of the pressure plate seat and two elastic supports extending into the accommodation chamber 41 through the side walls of the pressure plate seat The arms 415, 416 and the other three accommodating cavities 42, 43, 44 are also equipped with elastic support arms similar to those in the accommodating cavity 41, because their principle and structure are basically the same, and only the accommodating cavity 41 is used here. Each elastic support arm inside is described. As can be seen from Figure 3, one end of each elastic support arm connected to the inner wall of the accommodating cavity is a fixed end and the other end is a movable end, wherein each elastic support arm gradually rises from the fixed end to the movable end, as shown in Figure 9. The end is provided with bar-shaped holes 499 (only two of which are marked in the figure).

As shown in Figure 6, the pressure plate is provided with limiting bosses 217, 218, 219 to match the slots in the corresponding accommodation cavity of the pressure plate seat in Figure 1, and only needs to use the elastic deformation of the pressure plate to press the pressure plate into the corresponding cavity during installation. The accommodating cavity is sufficient.

See Fig. 7, the inner side of the pressure plate is respectively provided with the clips 211, 212, 213, 214, 215, 216 and the strips on the movable ends of the elastic support arms 411, 412, 413, 414, 415, 416 in Fig. 9 respectively. The hole 499 matches, and the pressure head 210 in Figure 7 matches the touch switch 31 in Figure 4, when the pressure plate 21 in Figure 2 is pressed down by an external force, the pressure head 210 presses the touch switch 31 to make it act, At this time, each chuck 211, 212, 213, 214, 215, 216 slides in the bar-shaped hole of the corresponding elastic support arm respectively, and plays a stable role in guiding and stabilizing the movement of the pressing plate; The head 200 is matched with the touch switch 30 in Fig. 4, and the four chucks 201, 202, 203, 204 are matched with the bar-shaped holes at the movable ends of the four elastic support arms 401, 402, 403, 404 in Fig. 9 respectively, Its principle is the same as that of the pressing plate 21.

As shown in Fig. 1, the mounting bracket 13 is made of metal material, and the pressure plate seat 4 is made of plastic material. When installing, first put the circuit board into the inner cavity of the bottom case 11 and then cover the cover plate 12 so that the circuit board is fixed as shown in Fig. 4, and then Fasten the installation frame 13 and the pressure plate seat 4 together, press each pressure plate 20, 21, 22, 23, 24 into the corresponding accommodating cavity, and then buckle with the bottom case together, and finally insert each light guide column into the surface of the pressure plate seat That is, as shown in Figure 2.

Claims (7)

1. An intelligent electrical switch, comprising a housing, a circuit board and a pressure plate, characterized in that the housing is provided with an accommodating cavity that can accommodate the pressure plate, and the accommodating cavity is provided with more than three elastic support arms , the fixed end of the elastic support arm is connected with the inner wall of the accommodating cavity and the movable end extends toward the inner side of the pressure plate, and the movable end of each elastic support arm evenly supports the inner side of the pressure plate to keep the pressure plate in motion. balanced, the pressing plate is reset under the elastic force of the elastic support arm after being pressed down. 2. According to the described intelligent electric switch of claim 1, it is characterized in that the movable end of the elastic support arm has a bar-shaped hole, and the inner side of the pressure plate is respectively provided with a chuck extending into the bar-shaped hole, and the The width of the chuck slides to match the width of the bar-shaped hole, and the pressing plate is smoothly guided by the interaction between the chuck and the bar-shaped hole during the movement of being pressed or reset, so that the pressing plate can move smoothly . 3. The intelligent electrical switch according to claim 1 or 2, characterized in that the housing is composed of a bottom case and a pressure plate seat, the circuit board is fixed in the inner cavity of the bottom case, and the accommodating cavity is set in In the pressing plate seat, the bottom shell is connected with the pressing plate by fastening. 4. The intelligent electrical switch according to claim 3, characterized in that the inner side of the pressure plate seat is equipped with a mounting frame, the mounting frame is fastened and connected with the pressure plate seat, and the mounting frame is buckled with the bottom shell. combined connection. 5 . The intelligent electrical switch according to claim 3 , wherein the bottom case is further equipped with a cover plate, and the cover plate is fastened and connected with the bottom case. 5 . 6 . The intelligent electrical switch according to claim 4 , wherein the bottom case is further provided with a cover plate, and the cover plate is fastened and connected with the bottom case. 7 . 7. The intelligent electrical switch according to claim 3, characterized in that the material of the pressure plate seat is plastic.