CN210182265U

CN210182265U - Simple key indication type switch

Info

Publication number: CN210182265U
Application number: CN201921252935.3U
Authority: CN
Inventors: Weiwei Wang; 王微微
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-03-24
Anticipated expiration: 2029-08-05

Abstract

The utility model belongs to the technical field of button indication type switch, a simple button indication type switch is disclosed, include: the device comprises a pressing shell, a key switch, an indicator light circuit and a conductive spring; a guide limiting hole is formed in the pressing shell, a guide limiting post is arranged on the shell of the key switch, and the guide limiting hole is sleeved on the guide limiting post; the indicator light circuit includes: the circuit comprises a circuit main body and a first power connector and a second power connector thereof; the first power supply connector and the second power supply connector are fixed on the pressing shell; a casing of the key switch is provided with a sleeve for accommodating the ratchet key, the conductive spring is sleeved outside the sleeve, the first end of the conductive spring is abutted against the casing of the key switch, and the second end of the conductive spring is abutted against the first power supply connector; the first end of the conductive spring is provided with a rigid conductive strip which passes through a through hole arranged on the shell of the key switch and abuts against the conductive contact sheet of the key switch. The utility model provides a simple button indication type switch of convenient high efficiency, low cost of assembly.

Description

Simple key indication type switch

Technical Field

The utility model relates to a button indication type switch technical field, in particular to simple button indication type switch.

Background

Key indication type switches have become an important component of many board sockets and sockets; the main components of the device are an indicator light circuit and a key switch, and the indicator light circuit is connected to a circuit controlled by the key switch to realize synchronous power supply and power off of the indicator light circuit and the controlled circuit, so that the clutch state of the key switch is indicated. However, the connection between the indicator light circuit and the controlled circuit is often realized by welding, which increases the assembly process flow, and more importantly, has very high requirements on the equipment scale and precision control of a full-automatic assembly production line, so that no way of realizing full-automatic assembly is available; at the same time, the welding process also increases the cost of assembly.

SUMMERY OF THE UTILITY MODEL

The utility model provides a simple button indication type switch solves among the prior art the welding operation degree of difficulty of the pilot lamp circuit of button indication type switch big, and is efficient, technical problem with high costs.

In order to solve the technical problem, the utility model provides a simple button indication type switch, include: the device comprises a pressing shell, a key switch, an indicator light circuit and a conductive spring;

the pressing shell is provided with a guide limiting hole, the shell of the key switch is provided with a guide limiting post, the guide limiting hole is sleeved on the guide limiting post, and the pressing shell is buckled on a ratchet button of the key switch;

the indicator light circuit includes: the circuit comprises a circuit body, a first power connector and a second power connector of the circuit body;

the first power connector and the second power connector are fixed on the pressing shell;

a casing for accommodating the ratchet wheel key is arranged on the casing of the key switch, the conductive spring is sleeved outside the casing, the first end of the conductive spring abuts against the casing of the key switch, and the second end of the conductive spring abuts against the first power supply connector;

and a rigid conductive strip is arranged at the first end of the conductive spring and abuts against the conductive contact sheet of the key switch through a through hole arranged on the shell of the key switch.

Further, the pressing housing includes: a pressing cap and a light-transmitting sheet;

the circuit main body is fixed in the pressing cap;

the cap top of the pressing cap is provided with a first light-transmitting part which is arranged in a form of indicating an icon;

the light transmission piece is fixed on the cap top, and the light transmission piece includes: and a light shielding portion and a second light transmitting portion, wherein the form of the second light transmitting portion is identical to the form of the indication icon, and the position of the second light transmitting portion is opposite to the position of the first light transmitting portion.

Furthermore, a positioning identification boss and a fixing boss are arranged on the light-transmitting sheet;

the cap top is provided with a positioning identification groove, and the positioning identification boss is embedded in the positioning identification groove;

the cap top is provided with a fixing groove, and the fixing boss is embedded in the fixing groove.

Further, the circuit body includes: the LED comprises a PCB substrate, and a diode D1, a resistor R1 and a light emitting diode which are arranged on the PCB substrate;

the anode of the diode D1 is connected with the second power supply connector, the cathode of the diode D1 is connected with the anode of the light-emitting diode through the resistor R1, and the cathode of the light-emitting diode is connected with the first power supply connector;

the first power connector and the second power connector are fixed on the PCB substrate.

Furthermore, a PCB clamping groove is formed in the pressing cap;

the PCB is clamped in the PCB clamping groove.

Furthermore, a positioning column is arranged in the PCB card slot, and a matched positioning hole is formed in the PCB substrate.

Furthermore, a limiting groove is formed in the conductive contact piece, and the end portion of the rigid conductive strip is embedded in the limiting groove.

Further, the key switch includes: the device comprises a shell, a ratchet button, a movable contact piece, a static contact piece and a base;

the sleeve is arranged at the top of the shell, the ratchet button is embedded in the sleeve, the bottom of the ratchet button is abutted against the top end of the elastic action part of the movable contact spring, the static fixing part of the movable contact spring is fixed on the base, the static contact spring is fixed on the base, and the base is buckled with the shell;

the end of the rigid conducting bar is abutted against the movable contact piece or the fixed contact piece.

Furthermore, the number of the guide limiting columns is two, and the number of the guide limiting holes is two;

the two guide limiting columns are symmetrical relative to the sleeve.

Further, the spacing post of direction includes: a first section of column, a curved engagement portion and a second section of column;

the first section of column and the second section of column are connected into a whole through the curve joint part, and the first section of column is farther away from the casing pipe relative to the second section of column.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

the simple key indication type switch provided by the embodiment of the application is abutted against a circuit of a connection indicating lamp and a conductive contact piece through the contact of the conductive spring and the rigid conductive strip, and a welding mode is replaced, so that the assembly difficulty is greatly reduced, the assembly efficiency is improved, and meanwhile, the assembly cost is relatively reduced; meanwhile, the conductive spring can ensure the reliability of contact conduction through the elastic connection property of the conductive spring; meanwhile, the conductive spring can enable the pressing shell and the key switch to be in a tensioning state all the time, so that the shell structure can be in a stable state, and unnecessary random shaking is avoided.

Drawings

Fig. 1 is an exploded schematic view of a simple key-indicating switch according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of an assembly structure of an indicator light circuit and a conductive spring according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an assembled contact state of a conductive spring according to an embodiment of the present invention;

FIG. 4 is a schematic view of the assembled state of FIG. 2;

fig. 5 is an assembly structure diagram of the simple key indication switch provided in the embodiment of the present invention.

Detailed Description

The embodiment of the application provides a simple button indication type switch, and solves the technical problems that in the prior art, the welding operation difficulty of an indication lamp circuit of the button indication type switch is high, the efficiency is low, and the cost is high.

In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the present disclosure, and it should be understood that the specific features in the embodiments and examples of the present disclosure are detailed descriptions of the technical solutions of the present disclosure, but not limitations of the technical solutions of the present disclosure, and the technical features in the embodiments and examples of the present disclosure may be combined with each other without conflict.

Referring to fig. 1 and 2, a simple key indication type switch includes: a press housing 8, a key switch, an indicator light circuit 7 and a conductive spring 6.

A guide limiting hole is formed in the pressing shell 8, a guide limiting post 52 is arranged on the shell of the key switch, the guide limiting hole is sleeved on the guide limiting post 52, and the pressing shell 8 is buckled on the ratchet button 4 of the key switch; that is, the pressing housing 8 can reciprocate within a fixed stroke range by pressing, so that stable and reliable pressing operation is realized, and the on-off state of the ratchet button 4 is adjusted.

Referring to fig. 3, the indicator light circuit 7 includes: the circuit body and its first and

second power connectors

71 and 72.

Referring to fig. 4 and 5, the first power connector 71 and the second power connector 72 are fixed to the pressing housing 8; a casing for accommodating the ratchet button is arranged on the casing of the key switch, the conductive spring 6 is sleeved outside the casing, the first end of the conductive spring 6 abuts against the casing of the key switch, and the second end of the conductive spring 6 abuts against the first power connector 71; therefore, the reliability of conductive connection can be kept by pressing the pressing shell 8 to press the conductive spring 6, and meanwhile, the reset torque is generated, when the ratchet button 4 is in place, the conductive spring 6 releases the elastic torque, and the pressing shell 8 resets and keeps good elastic conductive contact.

A first end of the conductive spring 6 is provided with a rigid conductive strip 61, and the rigid conductive strip 61 is abutted against the conductive contact of the key switch through a through hole 53 provided on the housing of the key switch.

That is, the switch provided in the present embodiment provides a reliable conductive structure by using the conductive spring 6 and the rigid conductive strip 61 as conductive media; more importantly, the convenience of assembly can be improved, the automatic assembly device is more suitable for automatic assembly, and compared with a wire welding mode, the complexity of an assembly process and the scale of a production line are greatly reduced, and the automatic production is adopted. Meanwhile, the cost is reduced to a certain extent.

Further, the pressing housing 8 includes: a pressing cap and a light transmitting sheet 81; the circuit main body is fixed in the pressing cap; the cap top of the pressing cap is provided with a first light-transmitting part which is arranged in a form of indicating an icon; the light transmission sheet 81 is fixed on the cap top, and the light transmission sheet 81 includes: and a light shielding portion and a second light transmitting portion, wherein the form of the second light transmitting portion is identical to the form of the indication icon, and the position of the second light transmitting portion is opposite to the position of the first light transmitting portion. Therefore, light of the indicating lamp circuit penetrates through the first light transmission part to form an indicating graph shape to be output, then specific light signals are screened out through the second light transmission part again to form stable graph outer appearance, other scattering is achieved, reflected light signals are blocked by the shading part, and the indicating light graph can be stable and soft.

Generally, the first light transmission portion is made of a light transmission material, and the second light transmission portion is made of a thinned light shielding material.

Furthermore, a positioning identification boss and a fixing boss are arranged on the light-transmitting sheet 81; the cap top is provided with a positioning identification groove, and the positioning identification boss is embedded in the positioning identification groove; the cap top is provided with a fixing groove, and the fixing boss is embedded in the fixing groove. Thereby facilitating fixation and positioning.

Further, the circuit body includes: the LED comprises a PCB substrate, and a diode D1, a resistor R1 and a light emitting diode which are arranged on the PCB substrate; the anode of the diode D1 is connected to the second power connector 72, the cathode of the diode D1 is connected to the anode of the light emitting diode through the resistor R1, and the cathode of the light emitting diode is connected to the first power connector 71; the first power connector 71 and the second power connector 72 are fixed on the PCB substrate.

That is, the mode of realizing printed circuit through the PCB base plate makes the pilot lamp circuit solidify, and the automated assembly of being convenient for on the one hand, on the other hand can also guarantee the reliability of circuit structure, reduces the risk of opening a circuit.

A PCB card slot 83 is arranged in the pressing cap; the PCB is clamped in the PCB groove 83, so that the fixing reliability is further improved, and more importantly, the automatic assembly is facilitated.

Furthermore, in order to improve the reliability of the contact conduction of the rigid conductive strip 61, a limit groove is formed in the conductive contact piece, and the end of the rigid conductive strip 61 is embedded in the limit groove to realize stable electrical contact.

Specifically, the key switch includes: a shell 5, a ratchet button 4, a movable contact piece 2, a static contact piece 3 and a base 1.

The sleeve is arranged at the top of the shell 5, the ratchet button 4 is embedded in the sleeve, the bottom of the ratchet button 4 is abutted against the top end of the elastic action part of the movable contact spring 2, the static fixing part of the movable contact spring 2 is fixed on the base 1, the static contact spring 3 is fixed on the base 1, and the base 1 is buckled with the shell 5; the ends of the rigid conductor strip 61 abut against the moving contact 2 or the stationary contact 3.

In order to take the convenience of automatic assembly and the reliability of locking into consideration, the number of the guide limiting columns 52 is two, and the number of the guide limiting holes is two; the two guide limiting columns 52 are symmetrical about the sleeve; thereby forming a stable guiding structure.

Further, the guide limiting column 52 includes: a first section of column, a curved engagement portion and a second section of column; the first section of column and the second section of column are connected into a whole through the curve splicing part, and the first section of column is farther away from the casing relative to the second section of column; therefore, during assembly, the first section of column is pressed inwards and then sleeved with the limiting guide hole, after the first section of column passes through, the first section of column is sleeved with the second section of column in a matched mode, the first section of column slides smoothly, and the difficulty of axially separating from the limiting guide column 52 can be improved.

Generally, in order to improve the guiding reliability, the housing 5 is provided with symmetrical first lugs 51, and the guiding limiting columns 52 are fixed on the first lugs 51 to form a larger operation space. The pressing cap is provided with symmetrical second support lugs 82, and the second support lugs 82 are provided with guide limiting holes. Meanwhile, the pressing cap may be provided with a harness slot 84 for restraining a wire connecting the second power connector 72 and a line of an electric object.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A simple key indication type switch, comprising: the device comprises a pressing shell, a key switch, an indicator light circuit and a conductive spring;

2. The simple key actuated switch of claim 1 wherein said push housing comprises: a pressing cap and a light-transmitting sheet;

the circuit main body is fixed in the pressing cap;

3. The simple push-button switch of claim 2, wherein: the light-transmitting sheet is provided with a positioning identification boss and a fixing boss;

4. The simple key-press indication switch of claim 2, wherein the circuit body comprises: the LED comprises a PCB substrate, and a diode D1, a resistor R1 and a light emitting diode which are arranged on the PCB substrate;

5. The simple key indication switch of claim 4, wherein a PCB card slot is arranged in the pressing cap;

the PCB is clamped in the PCB clamping groove.

6. The simple key indication switch of claim 5, wherein the PCB card slot is provided with a positioning column, and the PCB substrate is provided with a matching positioning hole.

7. The simple key indication switch as claimed in claim 1, wherein the conductive contact is formed with a limiting groove, and the end of the rigid conductive strip is embedded in the limiting groove.

8. The simple key-press indication type switch of any one of claims 1 to 7, wherein the key-press switch comprises: the device comprises a shell, a ratchet button, a movable contact piece, a static contact piece and a base;

9. The simple push-button switch of claim 8, wherein: the number of the guide limiting columns is two, and the number of the guide limiting holes is two;

the two guide limiting columns are symmetrical relative to the sleeve.

10. The simple push-button switch of claim 9, wherein: the spacing post of direction includes: a first section of column, a curved engagement portion and a second section of column;