SMT device of capacitive touch key

Abstract

The utility model discloses an SMT (Surface Mount Technology) device of a capacitive touch key, which comprises a capacitive touch key body (1), welding parts for SMT are arranged at four corners of the capacitive touch key body (1), and at least one opening window (5) is arranged on the upper end surface of the capacitive touch key body (1); the process adsorption cover (2) is detachably arranged at the upper end of the capacitive touch key body (1) and is used for adsorbing elements during SMT (Surface Mount Technology) mounting. According to the capacitive touch key, the sensitivity and the stability of the capacitive touch key are ensured while the assembly precision and the production efficiency are improved, the production process can be simplified, the production cost can be reduced, the reliability of a product and the user experience can be improved, and the capacitive touch key has a wide application prospect.

Description

Technical Field

[0001] The utility model relates to an SMT device, in particular to an SMT device for a capacitive touch button. Background Art

[0002] With the continuous development of electronic products and the popularization of intelligent technology, touch buttons have become widely used in various electronic devices. Capacitive touch buttons have become the preferred choice for many electronic products due to their high sensitivity, long service life, and beautiful design. However, during the production and assembly process, the assembly accuracy and stability of capacitive touch buttons have a significant impact on their performance.

[0003] Traditional capacitive touch buttons are typically assembled using direct soldering, which presents several challenges. For example, the small size and high-density layout of components make soldering difficult, leading to issues like loose solder joints or poor solder joints, which in turn impact the button's lifespan and sensitivity. Furthermore, traditional soldering methods lack flexibility during production, making it difficult to adapt to the needs of diverse products.

[0004] To improve production efficiency and assembly accuracy while ensuring the sensitivity and stability of capacitive touch buttons, the use of surface mount technology (SMT) has become a trend. By providing soldering points and suction caps on the capacitive touch button body, SMT technology makes component assembly more convenient and precise. However, existing SMT components still have some design shortcomings, such as interference from the capacitive effect and loose fixings. Summary of the Invention

[0005] In order to solve the above problems, the utility model provides an SMT device for capacitive touch buttons, which ensures the sensitivity and stability of the capacitive touch buttons while improving assembly accuracy and production efficiency. The design of the utility model can not only simplify the production process and reduce production costs, but also improve product reliability and user experience, and has broad application prospects.

[0006] The utility model is realized by the following technical solution: a SMT device of a capacitive touch button, comprising:

[0007] A capacitive touch button body, wherein the four corners of the capacitive touch button body are provided with soldering locations for SMT, and the upper end surface of the capacitive touch button body is provided with at least one opening window;

[0008] The process adsorption cover is detachably mounted on the upper end of the capacitive touch button body and is used for component adsorption during SMT patching.

[0009] As a preferred technical solution, the capacitive touch button body is made of welding material, an arch structure is provided on the side of the capacitive touch button body, and a support portion is formed between adjacent arch structures.

[0010] As a preferred technical solution, small holes are opened on the four sides of the capacitive touch button body for fixing the process adsorption cover.

[0011] As a preferred technical solution, a convex bulge is provided on the inner side surface of the process adsorption cover at a position corresponding to the small hole, and the process adsorption cover is fixed by buckling the convex bulge into the small hole.

[0012] As a preferred technical solution, a PCB is installed at the bottom of the opening window, an LED lamp is placed at the position of the PCB, and the top of the opening window is a user touch interface.

[0013] As a preferred technical solution, the process adsorption cover is made of elastic metal material.

[0014] As a preferred technical solution, the upper end surface of the process adsorption cover is a plane, and the SMT adsorption surface is formed on the plane.

[0015] As a preferred technical solution, the opening window is a circular hole, a square hole or an opening of any other shape.

[0016] As a preferred technical solution, the user touch interface is made of glass or plastic, and the button logo can be silk-screened on its inner or outer surface.

[0017] As a preferred technical solution, the number of the convex hulls is at least two.

[0018] The beneficial effects of the present invention are as follows: The capacitive touch key body of the present invention is made of weldable materials such as nickel silver, which ensures the firmness and reliability of the solder joints during the SMT soldering process;

[0019] Secondly, the four sides of the button body are designed with an arch structure, which effectively reduces the capacitive interference between it and other surrounding metals, further improving the sensitivity of the capacitive touch button;

[0020] In addition, by opening small holes on all four sides of the body and installing process adsorption covers, the stability of component adsorption and assembly accuracy during SMT placement are ensured, preventing components from falling off.

[0021] The process adsorption cover is made of metal materials with a certain degree of elasticity, such as stainless steel, and has a flat surface for component adsorption during SMT placement. It can be easily removed and reused after SMT is completed, reducing production costs.

[0022] There is an opening window on the top of the capacitive touch button body for installing an LED light to achieve the backlight function. The user touch interface can be made of glass or plastic, and the button logo can be silk-screened according to customer needs. When the backlight is on, the user can clearly see the button content, providing a good user experience. This utility model not only realizes the efficient assembly and reliable fixation of the capacitive touch button in structure, but also enhances the touch sensitivity and ease of use in function. It has significant practical value and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0024] Figure 1 It is an exploded view of the utility model;

[0025] Figure 2 This is a schematic diagram of the overall assembly of the utility model;

[0026] Figure 3 This is an exploded view of the present invention from the bottom perspective;

[0027] Description of reference numerals:

[0028] 1. Capacitive touch button body; 2. Process adsorption cover; 3. Arch structure; 4. Support part; 5. Opening window; 6. Small hole; 7. Bump; 8. SMT adsorption surface; 9. Notch. DETAILED DESCRIPTION

[0029] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0030] Any feature disclosed in this specification (including any appended claims, abstract, and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. In other words, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0031] like Figure 1-Figure 3 As shown, the present invention is a capacitive touch button SMT device, comprising a capacitive touch button body 1, wherein the four corners thereof are provided with soldering parts for SMT, and the upper end surface of the capacitive touch button body 1 is provided with at least one opening window 5;

[0032] It also includes a process adsorption cover 2, which is detachably mounted on the upper end of the capacitive touch button body 1 and is used for component adsorption during SMT patching. Notches 9 are set on both sides of the process adsorption cover 2.

[0033] Specifically, the capacitive touch button body 1 is made of a weldable material such as nickel silver, and is used for SMT welding at the four corners; the four side surfaces have an arch structure 3 to reduce the capacitance between it and other surrounding metals and improve the sensitivity of the capacitive touch button;

[0034] Small holes 6 are provided on each of the four sides to fix the process adsorption cover 2, ensuring assembly accuracy and strength during SMT adsorption and preventing it from falling. An opening window 5 is provided on the top, which can be a round hole, a square hole, or an opening of any other shape for light transmission. An LED light can be placed on the PCB directly below the opening window 5 to provide backlight for the touch buttons. Above the opening window 5 is the user touch interface, which can be made of glass or plastic. The inner or outer surface of these materials can be silk-screened with the button logo.

[0035] When the backlight is on, the logo content can be clearly seen; the brightness of the LED can be adjusted, breathing light design, flashing according to customer needs; RGB LED can also be used to achieve colorful backlight;

[0036] The process adsorption cover 2 is made of a metal material with a certain degree of elasticity, such as stainless steel, and is directly installed above the capacitive touch button body. The surface has a finished flat surface for component adsorption during SMT placement. The process adsorption cover 2 has two indented bumps 7 on both sides, which are used to cooperate with the capacitive touch button body 1 to complete the fixation of the process adsorption cover 2;

[0037] After completing SMT, the process adsorption cover 2 is removed to complete the entire installation of this part; the removed process adsorption cover 2 can be reused after quality inspection.

[0038] In this embodiment, the number of the convex hulls 7 is at least two. In this embodiment, there are two convex hulls 7. If the designed capacitive touch button body 1 is larger in volume, four or more convex hulls 7 may also be used.

[0039] If the central opening of the capacitive touch button body 1 is too large, causing the sensitivity of the capacitive touch to decrease too much, a transparent conductive film can be attached to the position of the opening to increase the capacitance effect when a finger touches it and improve sensitivity.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that do not require creative effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A capacitive touch button SMT device, characterized in that: include: A capacitive touch key body (1) is provided with soldering locations for SMT at its four corners, and at least one opening window (5) is provided on the upper end surface of the capacitive touch key body (1); A process adsorption cover (2) is detachably mounted on the upper end of the capacitive touch button body (1) and is used for adsorbing components during SMT patching.

2. The SMT device of a capacitive touch button according to claim 1, characterized in that: The capacitive touch button body (1) is made of welding material, an arch structure (3) is provided on the side of the capacitive touch button body (1), and a support portion (4) is formed between adjacent arch structures (3).

3. The SMT device of capacitive touch button according to claim 1, characterized in that: Small holes (6) are formed on the four sides of the capacitive touch button body (1) for fixing the process adsorption cover (2).

4. The SMT device of a capacitive touch button according to claim 3, characterized in that: A convex bump (7) is provided on the inner side surface of the process adsorption cover (2) at a position corresponding to the small hole (6), and the process adsorption cover (2) is fastened into the small hole (6) via the convex bump (7) to complete the fixation.

5. The SMT device of capacitive touch button according to claim 1, characterized in that: A PCB is installed at the bottom of the opening window (5), an LED lamp is placed at the position of the PCB, and the top of the opening window (5) is a user touch interface.

6. The SMT device of a capacitive touch button according to claim 1, characterized in that: The process adsorption cover (2) is made of elastic metal material.

7. The SMT device of a capacitive touch button according to claim 1, characterized in that: The upper end surface of the process adsorption cover (2) is a plane, on which an SMT adsorption surface (8) is formed.

8. The SMT device of a capacitive touch button according to claim 1, characterized in that: The opening window (5) is a round hole or a square hole.

9. The SMT device of a capacitive touch button according to claim 5, characterized in that: The user touch interface is made of glass or plastic, and the inner or outer surface thereof can be silk-screened with a button logo.

10. The SMT device of capacitive touch button according to claim 4, characterized in that: The number of the convex hulls (7) is at least two.

Images