Annular touch key

Abstract

The utility model provides an annular touch key which comprises a light guide panel, a middle frame and a PCB lamp panel, the PCB lamp panel and the light guide panel are both installed on the middle frame, touch copper platinum is arranged on the PCB lamp panel, the light guide panel covers the PCB lamp panel, an LED lamp set composed of a plurality of LED lamp beads in a surrounding mode is arranged on the PCB lamp panel, and the LED lamp set is arranged on the middle frame. An annular light-transmitting area is arranged at the position, corresponding to the LED lamp set, of the light guide panel, the light guide panel of the light-transmitting area is transparent, light guide silica gel is arranged on the PCB lamp panel, and the LED lamp set is covered with the light guide silica gel. The upper end of the light guide silica gel abuts against the back face of the light guide panel and covers the light transmitting area. The lower end of the light guide silica gel abuts against the touch copper platinum. The light-transmitting area is arranged on the light guide panel, the copper platinum and the LED lamp set are touched on the PCB, the LED lamp set is lightened when the area in the light-transmitting area of the light guide panel is touched through a hand or metal, the light guide silica gel is arranged for guiding light, uniform light emitting of the light-transmitting area is achieved, light feedback during touch is achieved, the sense of science and technology is increased, no mechanical motion exists when keys are pressed, and abrasion and aging can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of smart home control panels, in particular to a ring-shaped touch button. Background Art

[0002] With the rapid development of science and technology, smart home devices have become an important part of modern homes, bringing great convenience to people's lives. In smart home devices, the central control display screen of the smart home is the direct interface for users to interact with the device, and its design directly affects the user's operating experience. However, most traditional smart home display buttons are mechanical buttons installed on the middle frame outside the display screen to turn on and off the corresponding functions. This design not only has a heavy operating feel and lacks a sense of technology, but also after long-term use, the buttons may be worn and aged, affecting the overall appearance and service life of the device. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a ring-shaped touch button. By setting a light-transmitting area on the light guide panel, and touching the copper platinum and LED light group on the PCB board, the LED light group lights up when the inner circle of the light-transmitting area of ​​the light guide panel is touched by hand or metal, and light-guiding silicone light guide is set to achieve uniform light output in the light-transmitting area, which serves as light feedback when touching to increase the sense of technology, and the mechanical movement when the button is pressed can delay wear and aging.

[0004] The utility model is implemented by the following method: a ring-shaped touch button, comprising a light guide panel, a middle frame and a PCB light board, the PCB light board and the light guide panel are both installed on the middle frame, a touch copper platinum is arranged on the PCB light board, the light guide panel covers the top of the PCB light board, an LED light group composed of a plurality of LED lamp beads is arranged on the PCB light board, a ring-shaped light-transmitting area is arranged at the corresponding position of the light guide panel and the LED light group, the light guide panel in the light-transmitting area is transparent, a light-guide silicone is arranged on the PCB light board, and the light-guide silicone covers the LED light group; the upper end of the light-guide silicone abuts against the back of the light guide panel and covers the light-transmitting area; the lower end of the light-guide silicone abuts against the touch copper platinum.

[0005] Preferably, an annular groove is formed on the lower surface of the light-guiding silicone, and the groove is used to accommodate the LED lamp group.

[0006] Preferably, the irradiation direction of the LED lamp bead is toward the outside of the groove, and the center line of the LED lamp bead is parallel to the radial direction of the position of the groove where the LED lamp bead is located.

[0007] Preferably, the touch copper platinum is annular or C-shaped and is arranged on the PCB lamp board, and the LED light group is located in the area surrounded by the touch copper platinum; the lower end surface of the part of the light-guiding silicone located outside the outer circle of the groove abuts against the touch copper platinum.

[0008] Preferably, a circular copper-platinum area is also provided on the PCB lamp board, located in the inner circle of the LED lamp group.

[0009] Preferably, the copper platinum area, the touch copper platinum and the groove are on the same axis as the center of the light-transmitting area.

[0010] Preferably, the lower end surface of the light-guiding silicone located within the inner circle of the groove abuts against the copper-platinum area.

[0011] Preferably, the light guide panel is covered on the middle frame, and double-sided tape or glue is provided between the light guide panel and the middle frame.

[0012] Preferably, the back surface of the light guide panel except the light-transmitting area is covered with a light-shielding coating.

[0013] The beneficial effects of the utility model are: the utility model provides a ring-shaped touch button, compared with the prior art, the utility model has at least the following technical effects: 1. By setting a light-transmitting area on the light-guiding panel, and touching the copper platinum and LED light group on the PCB board, the LED light group lights up when the inner circle of the light-transmitting area of ​​the light-guiding panel is touched by hand or metal, and the light-guiding silicone light guide can realize uniform light emission in the light-transmitting area, and multiple LED lamp beads can be lit in sequence to achieve the effect of a marquee, as a light feedback when touching to increase the sense of technology, and there is no mechanical movement when the button is pressed, which can reduce wear and aging, so as to extend the service life. 2. Covering the non-light-transmitting area of ​​the light-guiding panel with a light-shielding coating can avoid the problem of light leakage, so that only the light emission of the ring-shaped light-transmitting area is more beautiful. 3. The light-guiding silicone has a circular and translucent appearance, and a ring-shaped groove is arranged inside it. The LED lamp beads refract the light through the arc surface facing the outside in the groove to evenly disperse the light, so that the light of the LED lamp beads is not directly directed to the light-transmitting area, and the light emission of the light-transmitting area is softer and more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of a ring-shaped touch button.

[0015] Figure 2 The utility model is a schematic diagram of the structure of a PCB lamp board of a ring-shaped touch copper platinum of a ring-shaped touch button.

[0016] Figure 3 The utility model is a schematic diagram of the structure of a C-shaped touch copper-platinum PCB lamp board of a ring-shaped touch button.

[0017] Figure 4 It is a structural schematic diagram of the light guide panel of the utility model.

[0018] Figure 5 It is a structural schematic diagram of the light-guiding silica gel of the utility model.

[0019] Explanation of the accompanying figures: 1. Light guide panel; 11. Light-transmitting area; 2. Middle frame; 3. Light guide silicone; 31. Groove; 4. PCB light board; 41. Touch copper platinum; 42. LED light group; 43. Copper platinum area. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] See also Figures 1 to 5 A ring-shaped touch button comprises a light guide panel 1, a middle frame 2 and a PCB light board 4, wherein the PCB light board 4 and the light guide panel 1 are both mounted on the middle frame 2, a touch copper platinum 41 is arranged on the PCB light board 4, the light guide panel 1 covers the top of the PCB light board 4, an LED light group 42 composed of a plurality of LED lamp beads is arranged on the PCB light board 4, an annular light transmission area 11 is arranged at the corresponding position of the light guide panel 1 and the LED light group 42, the light guide panel 1 of the light transmission area 11 is transparent, a light guide silicone 3 is arranged on the PCB light board 4, and the light guide silicone 3 covers the LED light group 42; the upper end of the light guide silicone 3 abuts against the back of the light guide panel 1 and covers the light transmission area 11; the lower end of the light guide silicone 3 abuts against the touch copper platinum 41. By setting a light-transmitting area 11 on the light-guiding panel 1, and touching the copper platinum 41 and the LED light group 42 on the PCB board, the LED light group 42 lights up when the inner circle of the light-transmitting area 11 of the light-guiding panel 1 is touched by hand or metal, and the light-guiding silicone 3 is set to guide the light so that the light-transmitting area 11 can emit light evenly. Multiple LED lamp beads can be lit in turn to achieve the effect of a marquee, which increases the sense of technology as light feedback when touching, and there is no mechanical movement when the button is pressed, which can reduce wear and aging, thereby extending the service life.

[0022] See also Figure 1 , Figure 5Preferably, an annular groove 31 is provided on the lower surface of the light-guiding silicone 3, and the groove 31 is used to accommodate the LED light group 42. The irradiation direction of the LED lamp bead is toward the outside of the groove 31, and the center line of the LED lamp bead is parallel to the radial direction of the position of the groove 31 where it is located. The light-guiding silicone 3 has a circular and translucent appearance, and an annular groove 31 is provided therein. The LED lamp bead refracts the light through the arc surface facing outward in the groove 31, so that the light of the LED lamp bead is not directly directed to the light-transmitting area 11, and the light emitted from the light-transmitting area 11 is softer and more uniform.

[0023] See also Figures 1 to 5 Preferably, the touch copper platinum 41 is annular or C-shaped and is arranged on the PCB light board 4, and the LED light group 42 is located in the area surrounded by the touch copper platinum 41; the lower end surface of the part of the light-guiding silicone 3 located outside the outer circle of the groove 31 abuts against the touch copper platinum 41. A circular copper platinum area 43 is also provided on the PCB light board 4, which is located in the inner circle of the LED light group 42. The copper platinum area 43, the touch copper platinum 41 and the groove 31 are on the same axis as the center of the light-transmitting area 11. The touch copper platinum 41 and the copper platinum area 43 together form a small capacitor with the PCB light board 4 for sensing touch. The lower end surface of the part of the light-guiding silicone 3 located within the inner circle of the groove 31 abuts against the copper platinum area 43. In this way, the light-guiding silicone can not only shield the LED light group 42 from light leakage and reflection, but also serve as a transmission member for triggering the touch copper platinum 41. One component can achieve two functions, which helps to reduce assembly difficulty and production cost.

[0024] See also Figure 1 , Figure 4 Preferably, the light guide panel 1 is covered on the middle frame 2, and double-sided tape or glue is provided between the light guide panel 1 and the middle frame 2, so as to facilitate the quick fixation of the light guide panel 1 and the middle frame 2.

[0025] See also Figure 1 , Figure 4 Preferably, the back of the light guide panel 1 is covered with a light-shielding coating except for the light-transmitting area 11. Covering the light-shielding coating in the non-light-transmitting area 11 of the light guide panel 1 can avoid the problem of light leakage, so that only the annular light-transmitting area 11 emits light, which is more beautiful. The preferred light-shielding coating can be a black oil film, but it is not limited to this, as long as it can achieve light shielding.

[0026] The utility model has the following working principle:

[0027] The light guide panel 1, light guide silicone 3, and touch copper platinum 41 of the PCB light board 4 are closely matched together in sequence. When the hand or metal touches the circular area within the light-transmitting area 11 of the light guide panel 1, the light is transmitted to the touch copper platinum 41 through the light guide silicone 3, the touch button is triggered, and then the LED lamp beads of the LED lamp group 42 on the PCB light board 4 receive the command and light up one by one to perform the function of a marquee (it should be noted that the PCB light board 4 and the corresponding lighting control, touch and other functions therein adopt mature existing technologies and no specific protection requirements are made).

[0028] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0029] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0030] Finally, the above is only a preferred implementation of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0031] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the utility model should also be regarded as within the protection scope of the utility model.

Claims

1. A ring-shaped touch button, comprising a light guide panel, a middle frame and a PCB light board, wherein the PCB light board and the light guide panel are both mounted on the middle frame, and a touch copper platinum is provided on the PCB light board, characterized in that: The light guide panel covers the PCB light board, and an LED light group composed of a plurality of LED lamp beads is arranged on the PCB light board. An annular light-transmitting area is arranged at the corresponding position of the light guide panel and the LED light group, and the light guide panel in the light-transmitting area is transparent. Light-guiding silicone is arranged on the PCB light board, and the light-guiding silicone covers the LED light group; the upper end of the light-guiding silicone abuts against the back of the light guide panel and covers the light-transmitting area; the lower end of the light-guiding silicone abuts against the touch copper platinum.

2. The annular touch button according to claim 1, characterized in that: An annular groove is formed on the lower surface of the light-guiding silicone and is used to accommodate the LED light group.

3. The annular touch button according to claim 2, characterized in that: The irradiation direction of the LED lamp bead is toward the outside of the groove, and the center line of the LED lamp bead is parallel to the radial direction of the position of the groove where the LED lamp bead is located.

4. The annular touch button according to claim 2, characterized in that: The touch copper platinum is annular or C-shaped and is arranged on the PCB lamp board, and the LED lamp group is located in the area surrounded by the touch copper platinum; the lower end surface of the part of the light-guiding silicone located outside the outer circle of the groove abuts against the touch copper platinum.

5. The annular touch button according to claim 4, characterized in that : A circular copper-platinum area is also provided on the PCB lamp board, located in the inner circle of the LED lamp group.

6. The annular touch button according to claim 5, characterized in that: The copper platinum area, the touch copper platinum and the groove are located on the same axis as the center of the light-transmitting area.

7. The annular touch button according to claim 5, characterized in that : The lower end surface of the light-guiding silicone located within the inner circle of the groove abuts against the copper-platinum area.

8. The annular touch button according to claim 1, characterized in that: The light guide panel is covered on the middle frame, and double-sided tape or glue is provided between the light guide panel and the middle frame.

9. The annular touch button according to claim 1, characterized in that: The back side of the light guide panel is covered with a light shielding coating except the light-transmitting area.

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