Key fixing structure

By setting a button bracket and soft single-sided adhesive on the inside of the electrical equipment housing, combined with limit blocks and positioning protrusions, the instability problem of traditional button fixing structures is solved, achieving stable button installation and precise operation, and improving the operating performance and service life of the equipment.

CN224501750UActive Publication Date: 2026-07-14深圳市锐欣源电子有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
深圳市锐欣源电子有限公司
Filing Date
2025-08-18
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional button fixing structures in electrical equipment have problems such as complicated installation, easy loosening, poor button feel, and button displacement affecting operation performance and service life.

Method used

The button frame is fixed inside the housing, combined with soft single-sided adhesive and button plate, and connected by injection molding. With the help of limit blocks and positioning protrusions, the buttons can be stably installed and operated accurately, reducing process steps and costs.

Benefits of technology

This improves the stability and durability of the buttons, ensures precise matching between the buttons and microswitches, enhances the operational performance and lifespan of the equipment, and reduces production and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224501750U_ABST
    Figure CN224501750U_ABST
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Abstract

The application provides a key fixing structure, which comprises a shell, a key frame fixedly arranged on the inner side of one side surface of the shell, a key hole arranged on the shell, a key arranged on the key frame and protruding from the key hole, a soft single-sided adhesive tape arranged on the key frame, and a key plate arranged on the soft single-sided adhesive tape and provided with a micro switch corresponding to the key. Through the cooperation of the shell, the key frame, the soft single-sided adhesive tape and the key, the key does not need to be provided with a force arm and a hot melting and dispensing process, the stable installation and accurate operation of the key are realized, and the process and cost are saved.
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Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and specifically to a button fixing structure for the housing of electrical equipment. Background Technology

[0002] In electrical equipment, buttons are key components enabling user interaction, and the stability and reliability of their fixing structure are crucial. Traditional button fixing methods have many shortcomings, such as complex installation, easy loosening, and poor button feel. In some devices, the button fixing structure is poorly designed, causing the buttons to easily shift during long-term use, affecting the precise matching between the button and the microswitch, thereby reducing the device's operational performance and lifespan. Therefore, this utility model proposes a button fixing structure to at least partially solve the problems that may exist in the prior art. Utility Model Content

[0003] In view of the aforementioned problems, this application is made to provide a button fixing structure for the housing of electrical equipment that overcomes or at least partially solves the problems, thereby improving the stability of button installation, ensuring precise matching between the button and the micro switch, and enhancing the operating performance and service life of the equipment.

[0004] One embodiment of this application discloses a button fixing structure for use in the housing of electrical equipment, comprising:

[0005] The housing has a button holder fixedly mounted on the inner side of one side.

[0006] The housing is provided with a button hole; the button is located at the button holder position and protrudes from the button hole;

[0007] The button holder is fitted with a soft single-sided adhesive backing, and a button plate is provided at the position of the soft single-sided adhesive backing. The button plate is provided with micro switches corresponding to the buttons.

[0008] Optionally, the button includes a button head, a limiting block, and a button tail;

[0009] The limiting block is located inside the button hole, causing the button head to protrude from the button hole.

[0010] Optionally, the end face of the key tail is set as a rounded or chamfered surface.

[0011] Optionally, the key tail is also provided with a rubber pad.

[0012] Optionally, the button holder is provided with a plurality of positioning protrusions, and the button plate is provided with corresponding positioning grooves, the positioning protrusions cooperating with the positioning grooves.

[0013] Optionally, the soft single-sided adhesive is a removable adhesive.

[0014] Optionally, the limiting block is rectangular or rounded rectangular in shape, and its width is greater than the width of the button hole.

[0015] Optionally, the surface of the button head is provided with anti-slip texture.

[0016] Optionally, the adhesive pad is made of silicone.

[0017] Optionally, the housing and the button holder are integrally formed by injection molding.

[0018] This application has the following advantages:

[0019] In the embodiments of this application, a button holder is fixedly mounted on the inner side of one side of the housing; the housing has a button hole; the button is positioned on the button holder and protrudes from the button hole; the button holder is fitted with a soft single-sided adhesive, and a button plate is positioned at the soft single-sided adhesive location, with a micro switch corresponding to the button on the button plate. Through the coordinated operation of the housing, button holder, soft single-sided adhesive, and button components, the button does not require a lever arm, hot melt, or dispensing process, achieving stable installation and precise operation, saving on processes and costs. The button fixing structure is optimized from various aspects, giving it significant advantages in stability, durability, ease of operation, and ease of production and maintenance, demonstrating good practicality and market prospects. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a first-view structural diagram of a housing for fixing a button, provided in an embodiment of this application.

[0022] Figure 2 This is a schematic diagram of the shell disassembly structure of a button fixing structure provided in one embodiment of this application;

[0023] Figure 3 This is a second-view structural diagram of a housing for fixing a button, provided in one embodiment of this application.

[0024] Figure 4 This is a schematic cross-sectional view of a housing structure for fixing a button, according to an embodiment of this application.

[0025] Figure 5This is a schematic diagram of a housing with positioning protrusions provided in an embodiment of the present application for a button fixing structure.

[0026] In the attached diagram, 101 is the housing; 102 is the button holder; 103 is the soft single-sided adhesive; 141 is the button head; 142 is the limiting block; 143 is the button tail; 144 is the chamfered surface; and 1021 is the positioning protrusion. Detailed Implementation

[0027] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] Reference Figures 1 to 4 This application provides a button fixing structure for an electrical device housing, comprising: a housing 101, on which a button holder 102 is fixedly mounted on the inner side; the housing 101 has a button hole; a button is disposed on the button holder 102 and protrudes from the button hole; a soft single-sided adhesive 103 is attached to the button holder 102, and a button plate (not shown in the figure) is disposed at the location of the soft single-sided adhesive 103, the button plate having a micro switch corresponding to the button. By fixing the button holder to the inner side of the housing and using the soft single-sided adhesive to attach the button plate to the button holder, the button installation is more stable, and the connection and cooperation between the button and the micro switch are facilitated. The button does not require a lever arm, hot melting, or dispensing, saving material costs and reducing processing time and improving processing efficiency.

[0029] The button includes a button head 141, a limiting block 142, and a button tail 143. The limiting block 142 is located inside the button hole, causing the button head 141 to protrude from the button hole. The limiting block 142 prevents the button from shifting excessively during use, ensuring that the button head always protrudes accurately from the button hole, facilitating user operation.

[0030] The end face of the aforementioned key tail 143 is set as a rounded corner or chamfered surface 144. The design of the rounded corner or chamfered surface can reduce the wear of the key tail and other components during contact and movement, and at the same time facilitate the smooth movement of the key within the key frame. In particular, it prevents the protruding edge of the key tail 143 from scratching the soft single-sided adhesive 103, thereby improving its service life.

[0031] Furthermore, the key tail 143 is also provided with a rubber pad. The rubber pad can play a buffering role, reducing the impact on the key tail and related components during the pressing of the key, extending the service life of the key and the device, and also further improving the operation feel of the key and reducing noise.

[0032] In some embodiments of this application, such as Figure 5 As shown, the button holder 102 is provided with a plurality of positioning protrusions 1021, and the button plate is provided with corresponding positioning grooves. The positioning protrusions 1021 cooperate with the positioning grooves. Through the cooperation of the positioning protrusions and positioning grooves, the positions of the button plate and the button holder can be positioned more accurately, further improving the accuracy of the cooperation between the button and the micro switch. The beneficial effect is to ensure the stable transmission of button operation signals and reduce the possibility of misoperation.

[0033] Furthermore, the soft single-sided adhesive 103 is a removable adhesive. The removable adhesive facilitates adjustments to the position of the keypad and key bracket 102 during production, and will not damage the equipment during later maintenance or component replacement, thus improving the convenience of production and maintenance.

[0034] The limiting block 142 is rectangular in shape or may be as follows: Figure 2 The half-circle and half-rectangular shape shown is considered as half of a rectangle with large rounded corners, and its width matches the width of the keyhole. The rectangular limiting block has a simple structure, is easy to manufacture, and effectively restricts the lateral displacement of the key within the keyhole, thus ensuring the stability and accuracy of key operation.

[0035] The surface of the button head 141 is provided with anti-slip texture (not shown in the figure). The anti-slip texture can increase the friction between the user's fingers and the button head 141, making the user more comfortable and accurate when operating the button, which has the beneficial effect of improving the user's operating experience.

[0036] Furthermore, the rubber pad is made of silicone. Silicone has good elasticity, wear resistance, and aging resistance, which can better perform its cushioning function, extend the service life of the rubber pad, and improve the stability and durability of the button structure.

[0037] In some embodiments of this application, the housing 101 and the button holder 102 are integrally formed by injection molding. Injection molding enhances the connection strength between the housing and the button holder, reduces assembly steps, and improves production efficiency. The beneficial effects are reduced production costs and improved overall stability of the button fixing structure.

[0038] As an example, in the manufacturing process of electrical equipment, the button holder 102 is first installed on the inner side of the housing 101 by injection molding or other suitable fixing methods. For example, for some small electrical equipment, injection molding can effectively improve production efficiency and structural stability.

[0039] Then, the soft single-sided adhesive 103 is attached to the button holder 102, while ensuring that the positioning groove on the button board and the positioning protrusion 1021 on the button holder 102 are accurately matched, and the button board is fixed on the soft single-sided adhesive 103 so that the micro switch on the button board corresponds to the button position.

[0040] Next, install the button. Place the button's tail 143 into the corresponding mounting position on the button holder 102. The rubber pad on the tail 143 provides cushioning and stability. Since the end face of the tail 143 is rounded or chamfered 144, installation is smoother. The button's limiting block 142 is located inside the button hole, ensuring the button head 141 protrudes beyond the button hole, and effectively preventing excessive button displacement. For example, in scenarios involving frequent button presses, the limiting block 142 ensures the button is always in the correct working position.

[0041] When a user operates an electrical appliance, pressing the button head 141 increases the friction between the finger and the button due to the anti-slip texture on its surface, making operation more comfortable and accurate. The button head 141 moves the button tail 143 downwards, which in turn activates the corresponding microswitch on the button panel, thus enabling the device to perform its function. The cushioning effect of the rubber pad reduces the impact of the button on the microswitch, extending its lifespan.

[0042] When maintenance or replacement of parts is required, the keypad can be easily removed from the keypad holder 102 because the soft single-sided adhesive 103 is removable, allowing for the corresponding repair or replacement operations.

[0043] Through the above embodiments, the button fixing structure of this utility model can effectively improve the stability of button installation, ensure the precise matching between the button and the micro switch, improve the operating performance and service life of the equipment, and at the same time have high convenience in the production and maintenance process.

[0044] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0045] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0046] The above provides a detailed description of a button fixing structure provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A button fixing structure for use in the housing of electrical equipment, characterized in that, include: The housing has a button holder fixedly mounted on the inner side of one side. The housing is provided with a button hole; the button is located at the button holder position and protrudes from the button hole; The button holder is fitted with a soft single-sided adhesive backing.

2. The button fixing structure according to claim 1, characterized in that, The button includes a button head, a limiting block, and a button tail; The limiting block is located inside the button hole, causing the button head to protrude from the button hole.

3. The button fixing structure according to claim 2, characterized in that, The end face of the key tail is set as a rounded or chamfered surface.

4. The button fixing structure according to claim 2, characterized in that, The key tail is also provided with a rubber pad.

5. The button fixing structure according to claim 1, characterized in that, The button holder is provided with a number of positioning protrusions, and the button plate is provided with corresponding positioning grooves, the positioning protrusions cooperating with the positioning grooves.

6. The button fixing structure according to claim 1, characterized in that, The soft single-sided adhesive is removable.

7. The button fixing structure according to claim 2, characterized in that, The limiting block is rectangular or rounded rectangular in shape, and its width is greater than the width of the button hole.

8. The button fixing structure according to claim 2, characterized in that, The surface of the button head is provided with anti-slip texture.

9. The button fixing structure according to claim 4, characterized in that, The adhesive pad is made of silicone.

10. The button fixing structure according to claim 1, characterized in that, The housing and the button holder are integrally formed by injection molding.