Indicator unit and push button switch

Abstract

The present invention discloses an indicating unit and a push button switch, which are intended to solve the deficiencies of traditional push button switches in terms of light-emitting component replacement, hot-swap management, structural design, sealing and reset effects. By setting a plug-in connector, the light-emitting component can be quickly replaced; at the same time, the introduction of a transient suppression component and a hot-swap management chip enhances the protection capability of the circuit and the stability of the system. The optimized structural design makes the push button switch more concise and reasonable, and is easy to assemble and maintain. In addition, the addition of sealing components and elastic components improves the sealing and reset effects of the push button switch, making it suitable for harsh environments. The limit grooves and raised structures on the keycaps enhance the sensitivity and stability of the switch and improve the user experience. The present invention has made significant progress in many aspects and provides a more efficient and reliable solution for the application of push button switches.

Description

Technical Field

[0001] The present invention relates to the technical field of push button switches, and in particular to an indicating unit and a push button switch. Background Art

[0002] In the prior art, push button switches are common control components in electronic devices and are widely used in various electrical appliances, mechanical equipment, and instruments to control the on and off of circuits and indicate the working status of the push button switch or the working status of the external circuit through light-emitting components (such as LED lamp beads). However, traditional push button switches have shortcomings in design and application:

[0003] The light-emitting parts of traditional push button switches (such as the lamp beads of indicator lights) are often connected to the circuit board by welding. Although this connection method is stable, when the model or type of the lamp beads needs to be replaced or repaired, it is usually necessary to directly replace the entire push button switch or disassemble the circuit board, which is complicated and costly. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In order to solve the above problems, the present invention proposes an indicating unit and a push button switch, aiming to solve the problem that the light-emitting element and the circuit board of the traditional push button switch are difficult to replace or hot-swap.

[0006] (II) Technical solution

[0007] An indication unit of the present invention comprises:

[0008] Luminous body,

[0009] A light-transmitting component is located above the light-emitting body, and the light-transmitting component includes a light-transmitting base, and the light-transmitting base is detachably arranged on the top of the light-emitting body;

[0010] A circuit board is provided with a plug-in connector, the light-emitting body is coupled to the plug-in connector, and the circuit board has a control circuit formed by various electronic components for controlling the on and off of the light-emitting body.

[0011] In the present invention, the circuit board also has a transient suppression component and a hot-swap management chip for protecting the control circuit in the circuit board. The transient suppression component and the hot-swap management chip are both coupled to the circuit board.

[0012] In the present invention, the light-transmitting base is threadedly connected to the light-emitting body, the light-emitting body includes a light-emitting element and a bracket, and the light-transmitting base is arranged on the light-emitting element;

[0013] A pin is also provided at the bottom of the light emitting component. The pin includes a plug-in portion and a bent travel portion. The travel portion is used to provide a deformation path for the up and down movement of the light emitting component. The plug-in portion is used to be inserted into the plug connector.

[0014] Another push button switch of the present invention comprises a shell body, a cover arranged on the shell body and the indicating unit described in the above technical solution, the shell body is provided with a cavity for accommodating the light-transmitting assembly and the light-emitting body, and an elastic member is provided between the light-transmitting base and the cavity for providing a reset force for the indicating unit;

[0015] The circuit board is mounted in the housing body, a switch is also provided on the circuit board, a key cap is also provided between the light emitting element and the switch, the switch is coupled to the circuit board, and a downward force applied to the light emitting element can drive the key cap to move downward and press the switch to trigger the control circuit;

[0016] The key cap is provided with a clearance groove for the light-emitting element to pass through, and the pin passes through the clearance groove and is connected to the plug-in connector;

[0017] The luminous body further comprises a light-transmitting member and a pressing portion, and the light-transmitting member and the pressing portion are detachably arranged on the light-transmitting base.

[0018] The present invention further comprises a stroke assembly, wherein the stroke assembly comprises a stationary ring body and a dynamic ring body, wherein the stationary ring body is fixedly connected to the outer shell body, and the dynamic ring body is arranged on the light-emitting body.

[0019] In the present invention, a convex ring is provided on the outer side of the light-transmitting base, and the pressing portion is clamped on the light-transmitting base through the convex ring. The bottom of the light-transmitting member is bent inwardly and provided with a limiting portion. One end of the limiting portion is clamped into the bottom of the convex ring and the bottom of the pressing portion is in contact with the limiting portion.

[0020] In the present invention, the key cap includes a cap body and a flange portion, and the cap body and the switch element are an integrated structure or a detachable structure.

[0021] In the present invention, a limiting groove is provided at the bottom of the cap body, at least three protrusions are provided in the limiting groove, and the protrusions are located on the same horizontal plane to form a limiting area, and the protrusions apply a horizontal clamping force to the switch member.

[0022] In the present invention, the protrusion is a hemispherical or columnar structure.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention realizes a quick and convenient connection between the light-emitting component and the circuit board by providing a plug-in connector. When the light-emitting component needs to be replaced, it is not necessary to disassemble the entire button switch or the circuit board, and the replacement can be completed by a simple plug-in operation, which greatly improves the replacement rate and maintenance efficiency.

[0026] Electrically connect transient suppression components (such as transient suppression diodes, capacitors, etc.) and hot-swap management chips on the circuit board to effectively absorb and suppress the instantaneous current and voltage generated during the plug-in and unplug process to prevent damage to the circuit. At the same time, the hot-swap management chip can also control the current rise rate, realize the circuit breaker function, power management, and status reporting, further improving the working state and stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of a push button switch;

[0029] Figure 2 It is a schematic diagram of the cross-sectional structure of a push button switch;

[0030] Figure 3 is a schematic diagram of the internal structure of the cavity;

[0031] Figure 4 Schematic diagram of the internal structure of the cavity (light-transmitting components omitted);

[0032] Figure 5 It is a schematic diagram of the three-dimensional structure of the shell body;

[0033] Figure 6 Schematic diagram of the internal structure of a push button switch;

[0034] Figure 7 It is a schematic diagram of the connection structure of the light-transmitting component;

[0035] Figure 8 is a schematic diagram of the cross-sectional structure of a light-transmitting component;

[0036] Fig. 9 Schematic diagram of the three-dimensional structure of the keycap (I);

[0037] Fig.10 Schematic diagram of the three-dimensional structure of the key cap (II).

[0038] 10. Shell body, 101. Cavity, 11. Cover, 12. Mounting ring, 20. Translucent component, 21. Translucent part, 211. Limiting part, 22. Pressing part, 23. Translucent base, 231. Protruding ring, 30. Travel component, 31. Static ring body, 32. Moving ring body, 33. Elastic part, 34. Key cap, 341. Flange part, 342. Cap body, 343. Limiting groove, 344. Protrusion, 345. Make way groove, 35. Sealing part, 40. Light-emitting body, 401. Light-emitting part, 4011. Travel part, 4012. Plug-in part, 402. Bracket, 41. Plug-in connector, 50. Circuit board, 51. Transient suppression part, 52. Hot-swap management chip, 53. Switch part. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1

[0041] like Figure 1-Figure 2 An indicating unit and a push button switch are shown, comprising a shell body 10, a light emitting body 40 disposed in the shell body 10, a light-transmitting component 20 and a circuit board 50, wherein the circuit board 50 is vertically disposed in the shell body 10, and one end is clamped and limited with the bottom of the shell body 10. A welding connection is often adopted between the light emitting part 401 of a traditional push button switch and the circuit board 50, and the light emitting part 401 is the lamp bead of the indicator light. Once the model, type or maintenance of the lamp bead needs to be replaced, it is often necessary to directly replace the entire push button switch or disassemble the circuit board 50 for replacement. A cover 11 is mounted on the upper part of the shell body 10 through a threaded connection.

[0042] The circuit board 50 is electrically connected to a variety of electronic components, such as a control circuit formed by diodes, resistors, and thermocouples. The control circuit is used to cooperate with the light-emitting element 401 to form an effective loop so that the light-emitting element 401 can be illuminated to indicate the working status of the button switch or the working status of the external circuit.

[0043] Specifically, the push button switch of the present invention is also provided with a plug-in connector 41 in order to realize quick assembly and replacement of the light-emitting component 401. In order to absorb and suppress the instantaneous current and voltage generated during the plug-in process and prevent damage to the circuit, a transient suppression component 51, such as a transient suppression diode, a capacitor, etc., is also electrically connected to the circuit board 50. In particular, a hot-swap management chip 52 is also electrically connected to the circuit board 50, including a driving MOS design and a current detection resistor, which can control the current rise rate, act as a circuit breaker, power management, and status report, etc., to improve the working state of the system. These chips usually have functions such as automatic recovery or lock protection mode, and timing circuit to cope with various situations during the plug-in process. The light-emitting component 401 is electrically connected to the circuit board 50 through the plug-in connector 41, and the hot-swap management of the circuit is achieved through the coordination time of the transient suppression component 51 and the hot-swap management chip 52, and the light-emitting component 401 can be directly replaced after the cover 11 and the light-emitting component are directly removed, which greatly increases the replacement rate and improves the maintenance effect.

[0044] Reference Figure 2-Figure 6 Describe the control structure of the push button switch in detail.

[0045] The push button switch of the present invention further includes a switch 53 and a key cap 34. The key cap 34 is arranged below the light emitting member 401. When the light emitting member 401 moves downward, a downward force is applied to the key cap 34 so that the key cap 34 presses the switch 53 downward to turn the circuit on or off. In order to achieve the above functions, the switch 53 needs to be electrically connected to the circuit board 50, and its top is connected to the key cap 34, including but not limited to the key cap 34 being mounted on the switch 53 or the key cap 34 and the movable parts of the switch 53 can also be integrated into an integrated structure. In particular, in this embodiment, the switch 53 can be a contact switch, a micro switch, etc.

[0046] Specifically, the keycap 34 includes a cap body 342 and a flange portion 341, and the cap body 342 and the flange portion 341 are an integrated structure. In this embodiment, a limiting groove 343 is provided at the bottom of the cap body 342 for accommodating the movable part of the switch component 53, that is, the keycap 34 is mounted on the switch component 53 through the limiting groove 343, and when a downward force is applied to the keycap 34, the switch component 53 can be triggered to implement the corresponding action logic.

[0047] The key cap 34 is also provided with a clearance groove 345, which is convenient for the pins and the body of the light emitting member 401 to pass through, that is, the connector of the light emitting member 401 disposed above the key cap 34 passes through the clearance groove 345 to connect with the plug connector 41. In particular, a part of the clearance groove 345 is disposed at the cap body 342, and the other part is disposed on the flange portion 341.

[0048] In order to realize the stroke control of the button switch or the change and maintenance of the switch state, a static ring body 31 and a dynamic ring body 32 are also provided on the light-emitting component 401, that is, the button switch realizes the on and off action of the button switch through the cooperation between the static ring body 31 and the dynamic ring body 32. This technical solution is a prior art and will not be elaborated here.

[0049] Reference Figure 7-Figure 8 Describe the indicating unit of the push button switch in detail.

[0050] In the present invention, the luminous body 40 is composed of a luminous member 401 and a bracket 402. The luminous member 401 is integrated or bonded to the bracket 402. The bracket 402 is used to install the dynamic ring body 32, and the static ring body 31 is clamped in the shell body 10. In particular, in order to increase the sealing effect of the push button switch, a sealing member 35 is also sleeved on the luminous member 401. One end of the sealing member 35 is sleeved on the bracket 402 of the luminous member 401, and the bottom is abutted against the shell body 10. In order to form a sealing structure with the sealing member 35, a mounting ring 12 is also provided in the shell body 10. The mounting ring 12 allows the luminous member 401 and the dynamic ring body 32 to move up and down, and the bottom of the sealing member 35 abuts against the top of the mounting ring 12. A buckle is provided on the side of the bracket 402, and the dynamic ring body 32 is mounted on the bracket 402 through the buckle.

[0051] In order to better enable the light-emitting element 401 to move up and down, the bottom of the light-emitting element 401 is further provided with a pin, which includes a plug-in portion 4012 and an S-shaped bent travel portion 4011. In this embodiment, the light-emitting element 401 moves up and down as it is pressed, that is, the travel portion 4011 ensures that the plug-in portion 4012 remains stationary even when the light-emitting element 401 moves up and down.

[0052] Specifically, the upper part of the housing body 10 is provided with a cavity 101 for accommodating the light-transmitting component 20 and the light-emitting component 401. The light-transmitting component 20 includes a light-transmitting base 23. In this embodiment, the light-transmitting base 23 is assembled with the light-emitting component 401 through a threaded connection, that is, a connecting thread is provided on the outer wall of the light-emitting component 401, and the light-transmitting base 23 is assembled with the light-emitting body 40 through an internal thread. The light-transmitting base 23 is a butterfly-shaped structure as a whole, and its material can be glass, polymethyl methacrylate, polycarbonate, polystyrene, etc., that is, it needs to have a good light-transmitting effect. In order to make the button switch have a better reset effect, a conical elastic member 33 is also provided between the light-emitting component 401 and the light-transmitting base 23, and the top of the elastic member 33 is in contact with the bottom of the light-transmitting base 23, and the bottom is in contact with the bottom of the cavity 101. In this embodiment, the elastic member 33 can be a compression spring with a conical structure or a device with a certain reset effect such as rubber or sponge.

[0053] The light-transmitting assembly 20 further includes a light-transmitting member 21 and a pressing portion 22. The side of the light-transmitting base 23 is provided with a convex ring 231. The pressing portion 22 is semi-enclosed and sleeved on the light-transmitting base 23, that is, a groove is also provided on the pressing base for adapting the convex ring 231, and the bottom of the light-transmitting member 21 is provided with a limiting portion 211 bent inwardly. The limiting portion 211 is inserted into the bottom of the convex ring 231 for limiting installation, and is abutted and limited by the bottom of the pressing portion 22. The surface of the pressing portion 22 can be polished to increase its flatness or smoothness. In particular, anti-skid patterns can be added to its surface to increase the friction of its surface.

[0054] During use, if the light-emitting body 40 needs to be replaced, it is only necessary to remove the cover 11 through the threaded connection, then the light-transmitting component 20 can be removed and the light-emitting component 401 can be pulled out for replacement. When installing again, it is only necessary to insert the light-emitting component 401 into the plug-in connector and then install the light-transmitting component 20 and the cover 11.

[0055] Example 2

[0056] like Figure 9-10 As shown, the difference from Example 1 is that three semicircular protrusions 344 are further provided in the limiting groove 343 of the key cap 34, and the spacing between the protrusions 344 is equal. The travel limiting area is used to clamp the upper part of the switch member 53, thereby preventing the key cap 34 and the switch member 53 from loosening and affecting the switching effect.

[0057] In particular, the protrusion 344 can be a hemispherical structure or a columnar structure.

[0058] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A push button switch, characterized in that: The push button switch comprises a housing body, a cover arranged on the housing body and an indication unit, wherein the indication unit comprises: Luminous body, A light-transmitting component is located above the light-emitting body, and the light-transmitting component includes a light-transmitting base, and the light-transmitting base is detachably arranged on the top of the light-emitting body; A circuit board, wherein a plug-in connector is provided on the circuit board, the light-emitting body is coupled to the plug-in connector, and the circuit board has a control circuit formed by a plurality of electronic components for controlling the on and off of the light-emitting body; The circuit board also has a transient suppression component and a hot-swap management chip for protecting the control circuit in the circuit board. The transient suppression component and the hot-swap management chip are coupled to the circuit board; The light-transmitting base is threadedly connected to the light-emitting body, the light-emitting body includes a light-emitting component and a bracket, and the light-transmitting base is arranged on the light-emitting component; A pin is also provided at the bottom of the light-emitting element, and the pin includes a plug-in portion and a bent travel portion, the travel portion is used to provide a deformation path for the up and down movement of the light-emitting element, and the plug-in portion is used to be inserted into the plug connector; The housing body is provided with a cavity for accommodating the light-transmitting assembly and the light-emitting body, and an elastic member is provided between the light-transmitting base and the cavity for providing a reset force for the indicating unit; The circuit board is mounted in the housing body, a switch is also provided on the circuit board, a key cap is also provided between the light emitting element and the switch, the switch is coupled to the circuit board, and a downward force applied to the light emitting element can drive the key cap to move downward and press the switch to trigger the control circuit; The key cap is provided with a clearance groove for the light-emitting element to pass through, and the pin passes through the clearance groove and is connected to the plug-in connector; The luminous body further comprises a light-transmitting member and a pressing portion, and the light-transmitting member and the pressing portion are detachably arranged on the light-transmitting base.

2. The push button switch according to claim 1, characterized in that: It also includes a stroke component, which includes a static ring body and a dynamic ring body. The static ring body is fixedly connected to the shell body, and the dynamic ring body is arranged on the light-emitting body.

3. The push button switch according to claim 2, characterized in that: A convex ring is provided on the outer side of the light-transmitting base, and the pressing part is clamped on the light-transmitting base through the convex ring. The bottom of the light-transmitting member is bent inwardly to provide a limiting part, one end of the limiting part is clamped into the bottom of the convex ring and the bottom of the pressing part is in contact with the limiting part.

4. The push button switch according to claim 3, characterized in that: The key cap comprises a cap body and a flange portion, and the cap body and the switch element are an integrated structure or a detachable structure.

5. The push button switch according to claim 4, characterized in that: A limiting groove is provided at the bottom of the cap body, at least three protrusions are provided in the limiting groove, and the protrusions are located on the same horizontal plane to form a limiting area, and the protrusions exert a horizontal clamping force on the switch member.

6. The push button switch according to claim 5, characterized in that: The protrusion is a hemispherical or columnar structure.

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