CN220368705U - Electronic switch - Google Patents

Abstract

The utility model provides an electronic switch, and relates to the technical field of switch equipment; the control assembly is arranged in the accommodating cavity, and the control assembly comprises a circuit board which is provided with a plurality of photoelectric sensing elements, so that the keys move along the longitudinal direction of the shell; the key transmits information to the circuit board through the touch light-emitting electric sensing element; the photoelectric sensor can control the circuit board under the condition that the lower end of the key is not contacted with the photoelectric sensing piece through the photoelectric effect of the photoelectric sensor, so that the technical problems that materials rebound to be soft, aged or metal fatigue after the pressing use times reach a certain number in the prior art are relieved, the aging of the contact is caused to be continuous or non-conductive, and the service life of equipment is prolonged.

Description

Electronic switch

Technical Field

The utility model relates to the technical field of switching equipment, in particular to an electronic switch.

Background

The key switch is a commonly used electrical control element and is commonly used for switching on or off a control circuit' (wherein the current is small), so as to achieve the purpose of controlling the operation of a motor or other electrical equipment; the control device is widely applied to various control devices due to the advantages of simple structure, low cost and good operability.

The key switch is usually composed of a spring, a spring sheet or a silica gel pad, the circuit is disconnected before the key is not pressed, and the normally open contact is communicated and the circuit is also connected after the key is pressed; for a normally closed contact, the contact is closed before the button is not pressed, and the contact is opened and the circuit is broken after the button is pressed; meanwhile, due to the working requirement of the control circuit, one key can be provided with a plurality of pairs of contacts which act simultaneously; because the traditional key adopts carbon film contacts, capacitor contacts or metal contacts in most cases, after the pressing frequency reaches a certain number, the material rebounds to be soft, aged or metal fatigue phenomenon can occur, and the aging of the contacts can occur failure phenomenon of continuous impact or non-conduction.

Disclosure of Invention

The utility model aims to provide an electronic switch, which solves the technical problems that the traditional keys mostly adopt carbon film contacts, capacitor contacts or metal contacts in the prior art, after the pressing use times reach a certain number, the material rebounds to generate the phenomena of fatigue, aging or metal fatigue, and the aging of the contacts can generate the failure phenomena of continuous impact or non-conduction.

In a first aspect, the utility model provides a wireless charging device, comprising a housing, a key and a control assembly, wherein the housing is provided with a containing cavity, and the control assembly is arranged in the containing cavity;

the control assembly comprises a circuit board, wherein the circuit board is provided with a plurality of photoelectric sensing pieces, and the key moves along the longitudinal direction of the shell; and the key transmits information to the circuit board by triggering the photoelectric sensing piece.

With reference to the implementation manner of the first aspect, the present utility model provides a first possible implementation manner of the first aspect, wherein the control assembly further includes a rotating shaft, a coding disc, and a magnet, where the coding disc and the magnet are sleeved on the rotating shaft; the rotary shaft is used for driving the coding disc to rotate;

the rotating shaft is connected between the shell and the key.

With reference to the first possible implementation manner of the first aspect, the present utility model provides a second possible implementation manner of the first aspect, wherein the circuit board is provided with a through hole, and one end of the rotating shaft penetrates through the through hole to be connected with the key;

and a plurality of photoelectric sensing pieces are uniformly distributed along the through holes.

With reference to the second possible implementation manner of the first aspect, the present utility model provides a third possible implementation manner of the first aspect, wherein the number of the photoelectric sensing elements is not less than 4.

With reference to the third possible implementation manner of the first aspect, the present utility model provides a fourth possible implementation manner of the first aspect, wherein the code wheel is disposed in a direction of the circuit board facing away from the key, and a reading sensor is disposed at an end of the circuit board facing toward the code wheel, and the reading sensor is configured to collect coded information on the code wheel.

With reference to the third possible implementation manner of the first aspect, the present utility model provides a fifth possible implementation manner of the first aspect, wherein an end portion of the rotation shaft facing away from the key is connected to the housing bearing.

With reference to the third possible implementation manner of the first aspect, the present utility model provides a sixth possible implementation manner of the first aspect, wherein an end portion of the rotation shaft toward the key is in a spherical structure.

With reference to the third possible implementation manner of the first aspect, the present utility model provides a seventh possible implementation manner of the first aspect, wherein the key is provided with a groove, and the groove is adapted to a shape of an end of the rotation axis toward the key; and the groove is used for accommodating the end part of the rotating shaft facing the key.

With reference to the seventh possible implementation manner of the first aspect, the present utility model provides an eighth possible implementation manner of the first aspect, wherein the groove is located in a middle portion of the key.

With reference to the seventh possible implementation manner of the first aspect, the present utility model provides a ninth possible implementation manner of the first aspect, wherein an outer edge of the key is a curved surface.

The embodiment of the utility model has the following beneficial effects: the control assembly is arranged in the accommodating cavity, and the control assembly comprises a circuit board which is provided with a plurality of photoelectric sensing elements, so that the keys move along the longitudinal direction of the shell; the key transmits information to the circuit board through the touch light-emitting electric sensing element; the photoelectric sensor can control the circuit board under the condition that the lower end of the key is not contacted with the photoelectric sensing piece through photoelectric effect, so that the technical problems that the conventional key in the prior art mostly adopts carbon film contacts, capacitor contacts or metal contacts, materials rebound after the number of pressing use times reaches a certain number to cause fatigue, aging or metal fatigue phenomenon, and the aging of the contacts causes continuous impact or non-conduction failure phenomenon are solved, and the service life of the device is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an internal cross-sectional structure of an electronic switch according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of an overall explosion structure of an electronic switch according to an embodiment of the present utility model.

Icon: 100-a housing; 200-key pressing; 300-a control assembly; 310-a circuit board; 320-a photo-sensor; 330-a rotation axis; 340-a code wheel; 350-magnet.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, the electronic switch provided by the utility model comprises a housing 100, a key 200 and a control assembly 300, wherein the housing 100 is provided with a containing cavity, and the control assembly 300 is installed in the containing cavity;

the control assembly 300 includes a circuit board 310, the circuit board 310 is provided with a plurality of photo-sensing elements 320, and the key 200 moves along the longitudinal direction of the housing 100; and the key 200 transmits information to the circuit board 310 by touching the light-emitting electric sensing element 320.

In a manner that a containing cavity is formed in the casing 100 and the control assembly 300 is installed in the containing cavity, since the control assembly 300 comprises the circuit board 310, the circuit board 310 is provided with a plurality of photoelectric sensing elements 320, and the key 200 moves along the longitudinal direction of the casing 100; and the key 200 transmits information to the circuit board 310 by touching the light-emitting electric sensing element 320; the photoelectric sensor can control the circuit board 310 under the condition that the lower end of the key 200 is not contacted with the photoelectric sensing piece 320 through the photoelectric effect of the photoelectric sensor, so that the technical problems that the conventional key 200 in the prior art mostly adopts carbon film contacts, capacitor contacts or metal contacts, after the number of pressing use times reaches a certain number, the material rebound can be soft, aged or metal fatigue, the aging of the contact can be caused to have continuous impact or non-conductive failure phenomenon are solved, and the service life of the device is prolonged.

It should be noted that, the casing 100 includes a supporting body and a substrate, the supporting body is of a hollow structure, the supporting body covers the substrate to form a containing cavity capable of containing the control assembly 300, meanwhile, an opening is formed at an end of the casing 100 facing away from the substrate, and the key 200 is connected with the control assembly 300 along the opening, so that the whole casing 100 is convenient to detach.

Patent document "a photoelectric switch with a bracket" (publication number CN 2152731370U) discloses the following scheme: "including the photoelectric switch body, the one end of photoelectric switch body is provided with the boss, the adjustment tank has been seted up to the inside of boss, one side of boss is provided with the mounting panel that is used for installing with equipment, the regulation hole has been seted up to the inside of mounting panel, be used for right the position is adjusted about the photoelectric switch body, one side of mounting panel is provided with the slider that one end extends to the adjustment tank inside, works as the boss drives the adjustment tank when the surface slip of slider. Through setting up photoelectric switch body, boss and mounting panel, boss cooperation mounting panel can adjust the upper and lower and control position of photoelectric switch body, does benefit to the calibration photoelectric switch body ", through the description of above file, has proven that the technical scheme that the cooperation between this application between photoelectric sensing piece 320 and button 200 replaces button 200 and by the cooperation between spring or the shell fragment in prior art to carry out circuit board 310 control is feasible.

Further, the control assembly 300 further includes a rotating shaft 330, a coding disc 340 and a magnet 350, wherein the coding disc 340 and the magnet 350 are sleeved on the rotating shaft 330; the rotating shaft 330 is used for driving the encoding disk 340 to rotate;

the rotation shaft 330 is connected between the housing 100 and the key 200.

The rotation shaft 330 may be connected between the housing 100 and the key 200 by means of bearing connection, gear connection, etc., and by sleeving the encoding disk 340 and the magnet 350 to the rotation shaft 330, the encoding disk 340 and the magnet 350 also rotate along with the rotation shaft 330 when the rotation shaft 330 rotates.

The code wheel 340 refers to a digital encoder that measures angular displacement; the displacement sensor has the advantages of strong resolving power, high measurement precision, reliable operation and the like, and is the most commonly used displacement sensor for measuring the angular position of the shaft; the code wheel 340 is divided into an absolute encoder capable of directly giving a digital code corresponding to an angular position and an incremental encoder; the latter uses the computing system to add or subtract the pulse increment generated by the rotary code disk to a certain reference number; the staff can set up direction information, angle information and acquaintance reading information on code wheel 340 according to actual need, can read direction, angle and speed through code wheel 340 when rotatory button 200, can realize convenient operation such as button 200 direction control under a set of pressing operation, rotatory quick selection and simple structure, feel comfortable, the reliability is high.

It should be noted that, the magnet 350 is disposed between the code plate 340 and the circuit board 310, and the magnetic force of the magnet 350 can be used to enhance the touch feeling of the key 200 when rotating, and at the same time, the circuit board 310 can be supported; when the lower edge of the key 200 is pressed, the lower edge trigger circuit of the key 200 is light-sensitive to send out a key 200 signal, the other side of the key 200 is lifted up against the attraction of the magnet 350, after the key 200 is released, the key 200 is attracted by the magnet 350 to complete the trigger instruction circulation, and when the key 200 is rotated, the key 200 drives the coding disc 340 to rotate through the rotating shaft 330 to send out a rotating instruction.

Further, the circuit board 310 is provided with a through hole, and one end of the rotating shaft 330 penetrates through the through hole to be connected with the key 200;

the plurality of photo-sensing elements 320 are uniformly distributed along the through holes.

The circuit board 310 is provided with a through hole, and one end of the rotating shaft 330 penetrates through the through hole to be connected with the key 200; and the circuit board 310 is fixed between the upper and lower cases of the case, and the top of the rotation shaft 330 with the magnet 350 passes through the circuit board 310 to support the key 200.

It should be noted that, the plurality of photoelectric sensors 320 are uniformly distributed along the through hole, and after the key 200 is pressed, the lower edge of the key 200 triggers the luminescence sense to send a signal, and the direction of the photoelectric switch that triggers more than 1 photoelectric switch first is the right.

Further, the number of the photo sensors 320 is not less than 4.

Further, the code plate 340 is disposed in a direction of the circuit board 310 away from the key 200, and a reading sensor is disposed at an end of the circuit board 310 facing the code plate 340, where the reading sensor is used for collecting the code information on the code plate 340.

The present embodiment is applicable to the direction-type control key 200, where the number of the photoelectric sensors 320 is set to be 4 or more, and the photoelectric sensors are used for reading directions of up, down, left, right, upper left, lower left, upper right, lower right, etc., after the key 200 is pressed, the annular edge under the key 200 may be triggered by more than 1 photoelectric switch, and the triggering direction is based on the first triggered light sensation. The back of the circuit is provided with a code wheel 340 reading sensor for reading the direction, angle and speed of rotation of the key 200.

Further, the end of the rotation shaft 330 facing away from the key 200 is bearing-connected with the housing 100.

The bearing connection structure is simple, production equipment is convenient to obtain materials, and production and later maintenance cost are reduced.

Further, the end of the rotation shaft 330 facing the key 200 has a spherical structure.

The end of the rotation shaft 330 facing the key 200 is in a spherical structure, so that the key 200 can rotate along the rotation shaft 330.

Further, the key 200 is provided with a groove, and the groove is matched with the shape of the end of the rotating shaft 330 facing the key 200; and the recess is for receiving the end of the rotation shaft 330 toward the key 200.

The center of the key 200 is a polygonal hole sleeved on the same number of polygonal rotating shafts 330, the rotating shafts 330 drive the coding disc 340 to rotate, the key 200 is always positioned at the center position by the rotating shafts 330, the top end of the rotating shafts 330 is of a polygonal ball head structure, the key 200 can be pressed down and can be adsorbed by the magnet 350 for correction, and when the key 200 is stirred to rotate, the polygonal hole in the key 200 is matched with the polygonal ball head of the rotating shaft 330 and transmits a rotating force to drive the coding disc 340 to rotate. The rotation shaft 330 is fixed to the lower half of the housing by a bearing.

Further, the recess is located in the middle of the key 200.

The grooves are formed in the middle of the key 200, so that the overall stress of the key 200 is more balanced, and the running quality of equipment is improved.

Further, the outer edge of the key 200 is curved.

In this embodiment, the outer assistance of the key 200 is curved, so that the contact between the human body and the key 200 is smoother.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. An electronic switch is characterized by comprising a shell (100), a key (200) and a control assembly (300), wherein the shell (100) is provided with a containing cavity, and the control assembly (300) is installed in the containing cavity;

the control assembly (300) comprises a circuit board (310), wherein the circuit board (310) is provided with a plurality of photoelectric sensing elements (320), and the key (200) moves along the longitudinal direction of the shell (100); and the key (200) transmits information to the circuit board (310) by triggering the photoelectric sensor (320).

2. The electronic switch of claim 1, wherein the control assembly (300) further comprises a rotating shaft (330), a code wheel (340) and a magnet (350), the code wheel (340) and the magnet (350) being sleeved on the rotating shaft (330); the rotating shaft (330) is used for driving the coding disc (340) to rotate;

the rotation shaft (330) is connected between the housing (100) and the key (200).

3. The electronic switch according to claim 2, wherein the circuit board (310) is provided with a through hole, and one end of the rotation shaft (330) penetrates through the through hole to be connected with the key (200);

the photoelectric sensing elements (320) are uniformly distributed along the through holes.

4. An electronic switch according to claim 3, characterized in that the number of photo-sensing elements (320) is not less than 4.

5. An electronic switch according to claim 3, characterized in that the code wheel (340) is arranged in a direction in which the circuit board (310) faces away from the keys (200), and that the end of the circuit board (310) facing the code wheel (340) is provided with a reading sensor for collecting coded information on the code wheel (340).

6. The electronic switch according to claim 2, characterized in that the end of the rotation shaft (330) facing away from the key (200) is bearing-connected with the housing (100).

7. The electronic switch of claim 6, wherein an end of the rotation shaft (330) facing the key (200) is of a spherical structure.

8. The electronic switch according to claim 7, characterized in that the key (200) is provided with a recess adapted to the shape of the end of the rotation shaft (330) towards the key (200); and the groove is used for accommodating the end part of the rotating shaft (330) facing the key (200).

9. The electronic switch of claim 8, wherein the recess is located in a middle portion of the key (200).

10. The electronic switch of claim 1, wherein an outer edge of the key (200) is curved.