Elastic sheet structure for mobile phone key

Abstract

The utility model relates to a shrapnel structure for a mobile phone key in the shrapnel field, which comprises a mounting base and a shrapnel assembly, the shrapnel assembly comprises a pressing shrapnel, a first conducting strip and a second conducting strip, and the first conducting strip and the second conducting strip are arranged in the mounting base side by side. The first conducting strip and the second conducting strip are bent to form contact plates, the pressing elastic piece is located on the sides, provided with the contact plates, of the first conducting strip and the second conducting strip, the pressing elastic piece is bent to form a first crimping part and a second crimping part, and the pressing elastic piece can generate elastic deformation under external force. The first crimping part and the second crimping part respectively press the contact plates on the first conductive sheet and the second conductive sheet, and the secondary deformation part is arranged between the first crimping part and the second crimping part, so that a two-section pressing effect can be achieved without two independent elastic sheet structures, and the structure of the two-section key of the mobile phone is simplified.

Description

Technical Field

[0001] This utility model relates to the field of spring contacts, and in particular to a spring contact structure for mobile phone buttons. Background Technology

[0002] Mobile phone keypads are an important component of mobile phone buttons, responsible for converting user key presses into electrical signals to control phone functions. Traditional keypad structures are relatively simple, typically using a single keypad to achieve both pressing and electrical conductivity. However, with the increasing number of mobile phone functions and rising user experience demands, the traditional single-keypad structure can no longer meet the increasingly diverse button requirements.

[0003] To accommodate the diverse functions of mobile phones and enhance user experience, physical buttons are designed as two-stage buttons. These two-stage buttons achieve different functions through varying pressure levels or travel distances; for example, a light press activates one function, while a heavier press activates another. This design not only improves the flexibility of the phone's buttons but also makes the phone more ergonomic, enhancing user comfort. To implement the two-stage button functionality, the phone's internal structure requires a corresponding spring-loaded mechanism to support and execute this design.

[0004] Existing spring-loaded structures used in mobile phones to achieve two-stage pressing have some drawbacks. To achieve this effect, some spring-loaded structures require a combination of two independent spring-loaded structures, which not only increases the internal space occupied by the phone but also raises production costs. Furthermore, the two independent spring-loaded structures are prone to misalignment or damage during long-term use, leading to reduced button reliability and durability. Utility Model Content

[0005] In order to overcome the shortcomings of existing technical solutions, this utility model provides a spring structure for mobile phone buttons, which can effectively solve the technical problem of large space occupation of two-stage pressing springs.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A spring-loaded structure for mobile phone buttons includes a mounting base and a spring-loaded assembly. The spring-loaded assembly is disposed on the mounting base, which is used to fix the spring-loaded assembly in the mobile phone. The spring-loaded assembly includes a pressing spring, a first conductive sheet, and a second conductive sheet. The first and second conductive sheets are disposed side by side in the mounting base. Contact plates are formed on both the first and second conductive sheets by bending. The pressing spring is located on the side of the first and second conductive sheets where the contact plates are provided. The pressing spring has a first pressing portion and a second pressing portion formed by bending. The pressing spring can undergo elastic deformation under external force, and the first and second pressing portions respectively press the contact plates on the first and second conductive sheets. A secondary deformation portion is provided between the first and second pressing portions. The distance between the first pressing portion and the first conductive sheet is smaller than the distance between the second pressing portion and the second conductive sheet.

[0008] Furthermore, a wiring board is provided at one end of the pressing spring, the first conductive sheet, and the second conductive sheet, and the wiring board extends to the surface of the mounting base.

[0009] Furthermore, the pressing spring, the first conductive sheet, and the second conductive sheet are all provided with connection holes, and the mounting base is provided with positioning screw holes corresponding to the connection holes. The pressing spring, the first conductive sheet, and the second conductive sheet are fixedly connected to the mounting base by bolts.

[0010] Furthermore, the inner wall of the mounting base is provided with a limiting block and a limiting post, and there is a movable channel between the limiting block and the limiting post, through which the middle section of the pressing spring passes.

[0011] Furthermore, a partition is provided between the first conductive sheet and the second conductive sheet.

[0012] Furthermore, the mounting base is provided with guide holes for guiding the physical button to press the spring.

[0013] Furthermore, both the first and second conductive sheets have support plates formed by bending, with one end of the support plate contacting the end of the contact plate away from the pressing spring.

[0014] Compared with existing technologies, the advantages of this invention are as follows: by combining and arranging the pressing spring, the first conductive sheet, and the second conductive sheet, a two-stage pressing effect can be achieved without two independent spring structures. This not only simplifies the structure of the two-stage button on the mobile phone and reduces production costs, but also improves the reliability and durability of the button and reduces the space occupied inside the mobile phone. When the user presses the button lightly, the pressing spring is elastically deformed by external force, firstly pressing the first pressing part against the contact plate on the first conductive sheet to achieve the first stage of conductive connection. As the pressing force increases, the pressing spring continues to deform. At this time, since the first pressing part and the contact plate on the first conductive sheet are already pressed together, the secondary deformation part begins to elastically deform, thereby pressing the second pressing part against the contact plate on the second conductive sheet to achieve the second stage of conductive connection. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the first conductive connection in this utility model;

[0017] Figure 3 This is a schematic diagram of the second conductive connection in this utility model.

[0018] The numbers in the diagram are: 1-Mounting base, 101-Limiting block, 103-Limiting post, 103-Partition plate, 2-Pressing spring, 201-First pressing part, 202-Second pressing part, 203-Secondary deformation part, 3-First conductive sheet, 4-Second conductive sheet, 5-Contact plate, 6-Positioning screw hole, 7-Support plate, 8-Connecting plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] The following is combined with Figures 1-3 A detailed description of a spring-loaded structure for mobile phone buttons according to this utility model is provided below:

[0021] A spring-loaded structure for mobile phone buttons includes a mounting base 1 and a spring-loaded assembly. The spring-loaded assembly is disposed on the mounting base 1, which is used to fix the spring-loaded assembly in the mobile phone. The spring-loaded assembly includes a pressing spring 2, a first conductive sheet 3, and a second conductive sheet 4. The first conductive sheet 3 and the second conductive sheet 4 are disposed side by side in the mounting base 1. Contact plates 5 are formed on both the first conductive sheet 3 and the second conductive sheet 4 by bending. The pressing spring 2 is located on the side of the first conductive sheet 3 and the second conductive sheet 4 where the contact plates 5 are provided. The pressing spring 2 has a first pressing part 201 and a second pressing part 202 formed by bending. The pressing spring 2 can generate elastic deformation under external force, and the first pressing part 201 and the second pressing part 202 respectively press the contact plates 5 on the first conductive sheet 3 and the second conductive sheet 4. A secondary deformation part 203 is provided between the first pressing part 201 and the second pressing part 202. The distance between the first pressing part 201 and the first conductive sheet 3 is smaller than the distance between the second pressing part 202 and the second conductive sheet 4.

[0022] By combining and arranging the pressing spring 2, the first conductive sheet 3, and the second conductive sheet 4, a two-stage pressing effect can be achieved without two independent spring structures. This not only simplifies the structure of the two-stage button on the mobile phone and reduces production costs, but also improves the reliability and durability of the button and reduces the space occupied inside the mobile phone. When the user presses the button lightly, the pressing spring 2 undergoes elastic deformation under external force, firstly causing the first pressing part 201 to press the contact plate 5 on the first conductive sheet 3, thus achieving the first stage of conductive connection. As the pressing force increases, the pressing spring 2 continues to deform. At this point, since the first pressing part 201 and the contact plate 5 on the first conductive sheet 3 are already pressed together, the secondary deformation part 203 begins to undergo elastic deformation, thereby causing the second pressing part 202 to press the contact plate 5 on the second conductive sheet 4, thus achieving the second stage of conductive connection.

[0023] A terminal block 8 is provided at one end of the pressing spring 2, the first conductive sheet 3, and the second conductive sheet 4. The terminal block 8 extends to the surface of the mounting base 1, making it easier to connect the spring assembly to the external circuit. The terminal block 8 extends directly to the surface of the mounting base 1, facilitating connection methods such as soldering or plugging, thereby reducing assembly difficulty and improving production efficiency. At the same time, this design also facilitates subsequent maintenance and replacement work, reducing maintenance costs.

[0024] The pressing spring 2, the first conductive sheet 3, and the second conductive sheet 4 are all provided with connecting holes. The mounting base 1 is provided with positioning screw holes 6 corresponding to the connecting holes. The pressing spring 2, the first conductive sheet 3, and the second conductive sheet 4 are fixedly connected to the mounting base 1 by bolts. The bolt connection ensures a stable connection between the spring assembly and the mounting base 1. This not only improves the stability of the structure but also effectively prevents loosening or detachment due to long-term use or vibration. At the same time, the design of the positioning screw holes 6 makes the assembly process more precise, ensuring the correct installation position of the spring assembly. A partition 103 is provided between the first conductive sheet 3 and the second conductive sheet 4. The partition 103 effectively avoids electrical interference or short circuits between the first conductive sheet 3 and the second conductive sheet 4. This improves the safety and stability of the circuit and ensures the normal function of the mobile phone buttons. At the same time, the partition 103 also serves to support and fix the conductive sheets, further enhancing the stability of the structure.

[0025] The inner wall of the mounting base 1 is provided with a limiting block 101 and a limiting post 103. A movable channel exists between the limiting block 101 and the limiting post 103. The middle section of the pressing spring 2 passes through this movable channel, and the bending deformation of the pressing spring 2 is controlled between the limiting block 101 and the limiting post 103, preventing excessive compression and deformation of the pressing spring 2. Support plates 7 are formed on both the first conductive sheet 3 and the second conductive sheet 4 by bending. One end of the support plate 7 contacts the end of the contact plate 5 away from the pressing spring 2. The design of the support plate 7 enhances the structural strength of the first conductive sheet 3 and the second conductive sheet 4, preventing deformation or damage caused by long-term stress.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A spring-loaded structure for a mobile phone button, comprising a mounting base and a spring-loaded assembly, the spring-loaded assembly being disposed on the mounting base, the mounting base being used to fix the spring-loaded assembly in the mobile phone, characterized in that: The spring assembly includes a pressing spring, a first conductive sheet, and a second conductive sheet. The first and second conductive sheets are arranged side by side in the mounting base. Contact plates are formed on both the first and second conductive sheets by bending. The pressing spring is located on the side of the first and second conductive sheets where the contact plates are provided. The pressing spring has a first pressing part and a second pressing part formed by bending. The pressing spring can undergo elastic deformation under external force, and the first and second pressing parts press the contact plates on the first and second conductive sheets respectively. A secondary deformation part is provided between the first and second pressing parts. The distance between the first pressing part and the first conductive sheet is smaller than the distance between the second pressing part and the second conductive sheet.

2. The spring-loaded structure for mobile phone buttons according to claim 1, characterized in that: One end of the pressing spring, the first conductive sheet, and the second conductive sheet is provided with a wiring board, which extends to the surface of the mounting base.

3. The spring-loaded structure for mobile phone buttons according to claim 1, characterized in that: The pressing spring, the first conductive sheet, and the second conductive sheet are all provided with connection holes, and the mounting base is provided with positioning screw holes corresponding to the connection holes. The pressing spring, the first conductive sheet, and the second conductive sheet are fixedly connected to the mounting base by bolts.

4. A spring-loaded structure for a mobile phone button according to any one of claims 1-3, characterized in that: The inner wall of the mounting base is provided with a limiting block and a limiting post, and there is a movable channel between the limiting block and the limiting post. The middle section of the pressing spring passes through the movable channel.

5. A spring-loaded structure for a mobile phone button according to any one of claims 1-3, characterized in that: A partition is provided between the first conductive sheet and the second conductive sheet.

6. A spring-loaded structure for a mobile phone button according to any one of claims 1-3, characterized in that: The mounting base is provided with guide holes for guiding the physical button to press the spring.

7. A spring-loaded structure for a mobile phone button according to any one of claims 1-3, characterized in that: Both the first and second conductive sheets have support plates formed by bending, and one end of the support plate contacts the end of the contact plate away from the pressing spring.

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