Luminous touch key structure and product with keys

Abstract

The utility model relates to a light-emitting touch button structure and a product with buttons, the light-emitting touch button structure comprises a printed circuit board, a spring and a light guide member, the printed circuit board is provided with a light-emitting member, the light-emitting member is located in a hollow structure of the spring, one end of the spring is fixedly connected with the printed circuit board, and the other end of the spring is fixedly connected with the light guide member. The other end of the spring abuts against one side of the light guide piece. The spring has electrical conductivity and senses the capacitance value change when the spring is touched; the light guide part is a T-shaped light guide part, one end of the T-shaped light guide part is arranged in the hollow structure of the spring in a sleeved mode, and the axilla portion of the T-shaped light guide part abuts against the other end of the spring. According to the utility model, the implementation cost of the key touch function can be greatly reduced, and the requirement of a user on the key backlight display effect can be met.

Description

Technical Field

[0001] This utility model relates to the field of buttons, and in particular to a structure for an illuminated touch button and a product with buttons. Background Technology

[0002] The touch function of buttons is usually implemented using flexible printed circuits (FPCs). However, the manufacturing process of flexible printed circuits is relatively complex, involving multiple steps such as material selection, circuit design, etching, and lamination. These processes require high-precision equipment and strict quality control, resulting in the current high production cost of touch buttons. Utility Model Content

[0003] Therefore, it is necessary to address the issue of high production costs for touch button structures by providing an illuminated touch button structure and a product with integrated buttons.

[0004] In a first aspect, the present invention provides a light-emitting touch button structure, comprising a printed circuit board, a spring, and a light guide. The printed circuit board is provided with a light-emitting element, which is located within the hollow structure of the spring. One end of the spring is fixedly connected to the printed circuit board, and the other end of the spring abuts against one side of the light guide. The spring is conductive and senses changes in capacitance when touched.

[0005] The light guide is a T-shaped light guide, one end of which is inserted into the hollow structure of the spring, and the armpit of the T-shaped light guide abuts against the other end of the spring.

[0006] In some embodiments, the other end of the T-shaped light guide is provided with a first groove extending into one end of the T-shaped light guide.

[0007] In some embodiments, a product support plate is also included, the product support plate having a second groove adapted to the light guide, the second groove having a through hole adapted to the spring.

[0008] In some embodiments, a light-shielding ring extending to the printed circuit board is provided on the side of the through hole near the printed circuit board, and the light-shielding ring abuts against the printed circuit board.

[0009] In some embodiments, the through hole is a circular through hole or a polygonal through hole.

[0010] In some embodiments, a product panel is also provided, which is fixedly connected to the product support plate, and the product panel is made of transparent material.

[0011] In some embodiments, the product panel has button markings.

[0012] In some embodiments, a product housing is also provided, which is fixedly connected to the product support plate.

[0013] In some embodiments, when there are multiple light guides, adjacent light guides are integrally formed.

[0014] Secondly, the present invention provides a product with buttons, including the above-mentioned illuminated touch button structure.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] This invention uses a spring instead of the traditional FPC method. It utilizes the spring's conductivity to sense the capacitance change caused by finger touch, thus achieving the button touch function and significantly reducing the implementation cost. Simultaneously, by incorporating a light-emitting element and a light guide, it achieves a button backlight effect to meet user needs. One end of the light guide is fitted into the hollow structure of the spring to limit the spring's deformation direction, thus correcting the spring and preventing it from twisting under stress, which could cause shadows when illuminated by the light-emitting element, ensuring the display effect of the button characters. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the structure of a light-emitting touch button according to an embodiment of the present invention;

[0018] Figure 2 This is an exploded view schematic diagram of the structure of a light-emitting touch button according to an embodiment of the present invention;

[0019] Figure 3 This is an exploded view schematic diagram of the light-emitting touch button structure according to another embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the product support plate shown in an embodiment of the present utility model;

[0021] Figure 5 This is a cross-sectional view of a light-emitting touch button structure according to another embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of a product with buttons according to an embodiment of the present invention. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0024] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a light-emitting touch button structure according to an embodiment of the present invention. The structure includes a printed circuit board 1, a spring 2, and a light guide 3. The printed circuit board 1 is provided with a light-emitting element 11, which is located inside the hollow structure of the spring 2. One end of the spring 2 is fixedly connected to the printed circuit board 1, and the other end of the spring 2 abuts against one side of the light guide 3. The spring 2 is conductive and senses the change in capacitance when touched.

[0027] The light guide 3 is a T-shaped light guide. One end 31 of the T-shaped light guide is inserted into the hollow structure of the spring 2, and the armpit 32 of the T-shaped light guide abuts against the other end of the spring 2.

[0028] In this embodiment, spring 2 is a conductive metal spring, electrically connected to the circuit of the printed circuit board. When a user touches spring 2 (specifically, touches the connection point of the light guide 3 connected to spring 2), spring 2 senses the capacitance change that occurs when the finger touches it. The printed circuit board 1 then processes this capacitance change to identify that the button has been touched and executes the corresponding action, thereby realizing the button touch sensing function. The light-emitting element 11 can be an LED light, etc., and the light guide 3 is made of a light-transmitting material. The light emitted by the light-emitting element 11 can pass through the light guide 3 after passing through the hollow structure of spring 2, thereby achieving the effect of a touch-illuminated button.

[0029] When touched by a finger, spring 2 deforms to some extent. When spring 2 deforms laterally (i.e., twists), the light emitted by the light-emitting element 11 is blocked by the twisted spring 2, forming a reflection that falls on the light guide 3, resulting in a shadow on the light guide 3 and affecting the light-emitting display effect. Therefore, in this embodiment, the light guide 3 is set as a T-shape, with one end of the T-shape inserted into the hollow structure of spring 2 to limit the lateral deformation of spring 2, allowing it to deform only in the vertical direction. Thus, the light emitted by the light-emitting element 11 will not produce a reflection on the light guide 3. For buttons with icons, the light can make the icons brighter, enhancing the visual effect.

[0030] In some embodiments, such as Figure 2 As shown, the other end 33 of the T-shaped light guide is provided with a first groove 34 extending into one end 31 of the T-shaped light guide. The first groove 34 can make the thickness of the center position of the T-shaped light guide thinner, so that the light emitted by the light-emitting element 11 can pass through the light guide 3 better, further enhancing the display effect.

[0031] In some embodiments, such as Figure 2 As shown, when there are multiple light guides 3, adjacent light guides 3 are integrally formed. For products with buttons, there are usually multiple buttons, and each button corresponds to a light guide 11. In order to improve assembly convenience, the light guides 11 of adjacent buttons are integrally formed to improve assembly efficiency.

[0032] In some embodiments, such as Figure 3 As shown, it also includes a product support plate 4, which has a second groove 41 adapted to the light guide 3, and the second groove 41 has a through hole 42 adapted to the spring 2.

[0033] In this embodiment, the product support plate 4 is a support structure inside the product used to support the button structure. The second groove 41 is adapted to the shape of the light guide 3 so that the light guide 3 is just embedded in the second groove 41, so as to limit and fix the light guide 3. A through hole 42 is provided and adapted to the spring 2 to facilitate the assembly of the spring 2. The T-shaped end of the light guide 3 can pass through the through hole 42 and penetrate into the hollow structure of the spring 2.

[0034] In some embodiments, such as Figures 3 to 5 As shown, a light-shielding ring 43 extending to the printed circuit board 1 is provided on the side of the through hole 42 near the printed circuit board 1, and the light-shielding ring 43 abuts against the printed circuit board 1. The light-shielding ring 43 is provided to prevent the light from interfering with each other between the light-emitting elements 11 of different buttons.

[0035] Optionally, the through hole 42 can be a circular through hole or a polygonal through hole to meet different button appearance design requirements.

[0036] In some embodiments, such as Figure 3 As shown, a product panel 5 is also provided, which is fixedly connected to the product support plate 4. The product panel 5 is made of transparent material and has button markings on it. The product panel 5 is a touch screen for finger touch. The transparent material of the product panel 5 allows the light-emitting element 11 to be visible on the product panel 5, so as to illuminate the button markings on the product panel 5 and meet the requirements of illuminated buttons.

[0037] In some embodiments, such as Figure 3 As shown, a product housing 6 is also provided, which is fixedly connected to the product support plate 4 to fix the product support plate 4 and form a stable structure.

[0038] See Figure 6 The present invention provides a product with buttons, including the above-mentioned illuminated touch button structure.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A light-emitting touch button structure, characterized in that, The device includes a printed circuit board, a spring, and a light guide. The printed circuit board is equipped with a light-emitting element, which is located inside the hollow structure of the spring. One end of the spring is fixedly connected to the printed circuit board, and the other end of the spring abuts against one side of the light guide. The spring is conductive and senses changes in capacitance when touched; The light guide is a T-shaped light guide, one end of which is inserted into the hollow structure of the spring, and the armpit of the T-shaped light guide abuts against the other end of the spring.

2. The luminous touch button structure according to claim 1, characterized in that, The other end of the T-shaped light guide is provided with a first groove extending into one end of the T-shaped light guide.

3. The luminous touch button structure according to claim 1, characterized in that, It also includes a product support plate, which has a second groove adapted to the light guide, and the second groove has a through hole adapted to the spring.

4. The luminous touch button structure according to claim 3, characterized in that, A light-shielding ring extending to the printed circuit board is provided on the side of the through hole near the printed circuit board, and the light-shielding ring abuts against the printed circuit board.

5. The luminous touch button structure according to claim 3, characterized in that, The through hole can be a circular through hole or a polygonal through hole.

6. The luminous touch button structure according to claim 3, characterized in that, It also includes a product panel, which is fixedly connected to the product support plate, and the product panel is made of transparent material.

7. The luminous touch button structure according to claim 6, characterized in that, The product panel has button labels.

8. The luminous touch button structure according to claim 3, characterized in that, It also includes a product casing, which is fixedly connected to the product support plate.

9. The luminous touch button structure according to claim 1, characterized in that, When there are multiple light guides, adjacent light guides are integrally formed.

10. A product with buttons, characterized in that, Includes the light-emitting touch button structure as described in any one of claims 1 to 9.

Images