Key of electronic product

Abstract

A key of an electronic product comprises a shell which is of a cavity hollow structure, one side of the shell is provided with an opening, and the shell is composed of a pressing wall and a peripheral side wall; a plurality of weight reducing grooves are formed in part or all of the inner part of the peripheral side wall; the weight reduction mechanism is of a grid structure composed of a plurality of mutually-crossed reinforcing ribs, the reinforcing ribs are partially or completely arranged on the inner wall of the pressing wall, and each reinforcing rib is not parallel to the horizontal line and the vertical line of the plane where the pressing wall is located; the shell and the weight reduction mechanism are integrally formed through the 3D printing technology. According to the key of the electronic product provided by the utility model, the key of the electronic product with a unique structure is printed by adopting a 3D printing technology, so that the utilization rate of raw materials can be greatly improved, the weight of a workpiece is reduced, and the processing cycle of the workpiece is shortened.

Description

Technical Field

[0001] This application relates to the field of 3D printing technology, and in particular to a button for an electronic product using 3D printing. Background Technology

[0002] Traditionally, the button manufacturing process for electronic products (such as mobile phones) typically uses solid rods as raw materials. Figure 1 As shown in the image, the final product structure is then manufactured using CNC machining. Buttons manufactured in this way require a large CNC allowance, resulting in low raw material utilization. The finished product is a solid structure and therefore heavy. Furthermore, the large allowance leads to a longer CNC machining cycle, increasing the product's processing cost.

[0003] 3D printing technology is a material processing technology with high flexibility. It can flexibly manufacture spatial irregular and complex structures that are difficult to process using traditional processing techniques. It has significant advantages, especially in topology optimization or lightweight design of products, and in not sacrificing the structural strength of products. Thus, it can solve many product processing and manufacturing problems. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a button for electronic products. By using 3D printing technology to print a button with a unique structure, it can significantly improve the utilization rate of raw materials, reduce the weight of the workpiece, and shorten the processing cycle of the workpiece.

[0005] To achieve the above objectives, this utility model provides a button for an electronic product, including a housing with a hollow cavity structure and an opening on one side. The housing is composed of a pressing wall and an outer peripheral sidewall; the outer peripheral sidewall has a plurality of weight-reducing grooves partially or entirely formed therein; and

[0006] The weight-reducing mechanism is a grid structure composed of several intersecting reinforcing ribs. The inner wall of the pressing wall is partially or entirely provided with these reinforcing ribs, and each reinforcing rib is not parallel to either the horizontal or vertical lines of the plane containing the pressing wall; wherein,

[0007] The outer shell and weight reduction mechanism are integrally formed using 3D printing technology.

[0008] As a further preferred embodiment of this utility model, two cylinders are respectively provided on both sides of the inner wall of the pressing wall to connect to the power source and realize the power connection of the button.

[0009] As a further preferred embodiment of this utility model, the length and width of the grid structure are greater than or equal to 1 mm and less than or equal to 2 mm.

[0010] As a further preferred embodiment of this utility model, the weight-reducing groove is circular or hexagonal in shape.

[0011] As a further preferred embodiment of this utility model, the diameter of the circle or the side length of the hexagon does not exceed one-half of the width of the outer peripheral sidewall.

[0012] As a further preferred embodiment of this utility model, the weight-reducing grooves are evenly distributed on the outer peripheral sidewall, and the distance between adjacent weight-reducing grooves is 0.3mm-1mm.

[0013] As a further preferred embodiment of this utility model, the depth to which the weight-reducing groove is embedded in the outer peripheral sidewall does not exceed one-half of the wall thickness of the outer peripheral sidewall.

[0014] As a further preferred embodiment of this utility model, the thickness of both the pressing wall and the outer peripheral sidewall is 0.2mm-0.5mm.

[0015] As a further preferred embodiment of this utility model, the thickness of the reinforcing rib is 0.1mm-0.3mm.

[0016] As a further preferred embodiment of this utility model, the angle between the reinforcing rib and the horizontal line of the plane where the pressing wall is located is 45°-70°.

[0017] The button of the electronic product of this utility model, by adopting the above technical solution, has the following beneficial technical effects:

[0018] 1. The button of the electronic product of this application has a lightweight structure. Based on weight reduction and improved material utilization, a grid structure composed of single reinforcing ribs is added to the pressing wall, which can increase the pressing surface's resistance to deformation and extend the button's service life.

[0019] 2. The material utilization rate of the buttons in the electronic products of this application can be increased from less than 20% in traditional processes to more than 30%.

[0020] 3. The button of the electronic product in this application uses 3D printing technology to print a unique structure of the button, which can greatly improve the utilization rate of raw materials, reduce the weight of the workpiece, and shorten the processing cycle of the workpiece.

[0021] 4. The buttons and weight reduction mechanism of the electronic products of this application do not require separate CNC machining in the later stage, but only simple surface polishing treatment, thereby reducing the product processing cycle. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of a button in an electronic product made using existing technology with solid bar stock;

[0023] Figure 2A schematic diagram of the structure of the button provided in Embodiment 1 of the electronic product of this utility model. Figure 1 ;

[0024] Figure 3 A schematic diagram of the structure of the button provided in Embodiment 1 of the electronic product of this utility model. Figure 2 ;

[0025] Figure 4 for Figure 2 A sectional view;

[0026] Figure 5 A schematic diagram of the structure of the button provided in Embodiment 2 for the electronic product of this utility model;

[0027] Figure 6 for Figure 5 A sectional view;

[0028] Figure 7 A schematic diagram of the grid structure of this utility model.

[0029] Marked in the image:

[0030] 1. Reinforcing rib, 2. Cylindrical, 001. Pressing surface, 3. Weight reduction groove. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0032] To achieve the above objectives, this utility model provides a button for an electronic product, including a housing with a hollow cavity structure and an opening on one side. The housing is composed of a pressing wall and an outer peripheral sidewall. A plurality of weight-reducing grooves 3 are partially or completely formed within the outer peripheral sidewall.

[0033] The weight-reducing mechanism is a grid structure composed of several intersecting reinforcing ribs 1. The inner wall of the pressing wall is partially or entirely provided with these reinforcing ribs 1, and each reinforcing rib 1 is not parallel to either the horizontal or vertical line of the plane containing the pressing wall; wherein,

[0034] The outer shell and weight reduction mechanism are integrally formed using 3D printing technology.

[0035] The front side of the aforementioned pressing wall is the pressing surface 001, used by the user to press the buttons on the electronic product. The electronic product can be a mobile phone, tablet, etc. The buttons on the electronic product can be printed using materials such as stainless steel, aluminum alloy, or titanium alloy.

[0036] The aforementioned mesh structure composed of several reinforcing ribs 1 can be used to enhance the strength of the pressing surface 001, preventing the pressing surface 001 from deforming due to frequent stress during use, thereby extending the service life of the button.

[0037] Preferably, in order to enhance the strength of the pressing surface 001, the inner wall of the pressing wall is provided with all of the aforementioned reinforcing ribs 1.

[0038] In one specific implementation, the thickness of both the pressing wall and the outer peripheral sidewall is 0.2mm-0.5mm. Of course, specifically, it can be selected according to the actual structure and size of the button. Preferably, in combination with the stress requirements of the pressing surface 001, the thickness of the reinforcing rib 1 is 0.1mm-0.3mm.

[0039] Preferably, the weight-reducing grooves 3 are circular or hexagonal in shape, wherein the diameter of the circle or the side length of the hexagon does not exceed half the width of the outer peripheral sidewall, and they are evenly distributed on the outer peripheral sidewall, with the distance between adjacent weight-reducing grooves 3 being 0.3mm-1mm. The width of the outer peripheral sidewall is denoted as W, such as... Figure 3 As shown. Specifically, 1mm ≤ W ≤ 3mm. This shape and the weight-reducing groove 3 of this structure can better ensure the forming effect, and can further reduce weight without affecting the strength of the outer peripheral sidewall of the shell. In order to further ensure the strength of the outer peripheral sidewall of the shell, the depth of the weight-reducing groove 3 embedded in the outer peripheral sidewall does not exceed half of the thickness of the outer peripheral sidewall. In order to ensure that the pressing surface 001 has sufficient strength, the number of reinforcing ribs 1 can be increased accordingly according to the area of ​​the pressing surface 001. Preferably, the length and width of the grid structure are greater than or equal to 1mm and less than or equal to 2mm, where the length is marked as a and the width is marked as b, as shown. Figure 7 As shown.

[0040] More preferably, the angle between the reinforcing rib 1 and the horizontal line of the plane where the pressing wall is located is 45°-70°, which not only ensures that the reinforcing rib 1 can be directly printed without the need for additional support or other auxiliary forming structures; but also that the reinforcing rib 1 can obtain a smoother forming surface quality, which can reduce the difficulty of the subsequent surface polishing process of the reinforcing rib 1.

[0041] In a specific implementation, two cylindrical sections 2 are respectively provided on both sides of the inner wall of the pressing wall to connect to the power source and realize the power connection of the button.

[0042] The buttons of the electronic product of this utility model are prepared by the following method:

[0043] S1, Create a 3D model of the buttons on the electronic product to be printed;

[0044] S2, based on the button structure and the force-bearing area of ​​the pressing surface 001, determine the area where weight can be reduced;

[0045] S3. Design a weight reduction mechanism within the defined weight reduction area, and perform fatigue analysis on the key force to determine the required strength of the weight reduction mechanism and the appropriate wall thickness of the outer shell.

[0046] S4 uses 3D printing technology to integrally form the buttons of the electronic product to be printed.

[0047] To enable those skilled in the art to better understand and implement the technical solution of this utility model, the technical solution of the button of the electronic product of this utility model will be described in detail below with reference to the accompanying drawings and in the form of embodiments.

[0048] Example 1

[0049] like Figures 2-4 As shown, the button of the electronic product in this embodiment includes a housing, which is a hollow cavity structure with an opening on one side. The housing is composed of a pressing wall and an outer peripheral sidewall. A plurality of weight-reducing grooves 3 are partially or completely provided in the outer peripheral sidewall.

[0050] The weight-reducing mechanism is a grid structure composed of several intersecting reinforcing ribs 1. The inner wall of the pressing wall is partially or entirely provided with these reinforcing ribs 1, and each reinforcing rib 1 is not parallel to either the horizontal or vertical line of the plane containing the pressing wall; wherein,

[0051] The outer shell and weight reduction mechanism are integrally formed using 3D printing technology;

[0052] The thickness of the pressing wall and the outer peripheral sidewall is 0.3 mm, and the thickness of the reinforcing rib 1 is 0.1 mm. The weight-reducing groove 3 is circular in shape, with a diameter of 0.1 mm, and is evenly distributed on the outer peripheral sidewall. The distance between adjacent weight-reducing grooves 3 is 0.5 mm, and the depth of the weight-reducing groove 3 embedded in the outer peripheral sidewall is 0.1 mm. The length and width of the grid structure are both 3 mm; the angle between the reinforcing rib 1 and the horizontal line of the plane containing the pressing wall is 45°.

[0053] Example 2

[0054] like Figure 5 and Figure 6 As shown, the button of the electronic product in this embodiment includes a housing with a hollow cavity structure and an opening on one side. The housing is composed of a pressing wall and an outer peripheral sidewall. A plurality of weight-reducing grooves 3 are partially or completely formed within the outer peripheral sidewall.

[0055] The weight-reducing mechanism is a grid structure composed of several intersecting reinforcing ribs 1. The inner wall of the pressing wall is partially or entirely provided with these reinforcing ribs 1, and each reinforcing rib 1 is not parallel to either the horizontal or vertical line of the plane containing the pressing wall; wherein,

[0056] The outer shell and weight reduction mechanism are integrally formed using 3D printing technology.

[0057] The thickness of the pressing wall and the outer peripheral sidewall is 0.4 mm, and the thickness of the reinforcing rib 1 is 0.2 mm. The weight-reducing groove 3 is hexagonal in shape, with a side length of 0.1 mm. It is evenly distributed on the outer peripheral sidewall, and the distance between adjacent weight-reducing grooves 3 is 0.4 mm. The depth to which the weight-reducing groove 3 is embedded in the outer peripheral sidewall is 0.2 mm. The length and width of the grid structure are both 2 mm. The angle between the reinforcing rib 1 and the horizontal line of the plane containing the pressing wall is 60°.

[0058] 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.

[0059] The embodiments described above are merely illustrative of several implementation methods of this application, 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 application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A button for an electronic product, characterized in that, include: The outer shell has a hollow cavity structure with an opening on one side. The outer shell is composed of a pressing wall and an outer peripheral sidewall. Some or all of the outer peripheral sidewall is provided with a number of weight-reducing grooves. as well as The weight-reducing mechanism is a grid structure composed of several intersecting reinforcing ribs. The inner wall of the pressing wall is partially or entirely provided with these reinforcing ribs, and each reinforcing rib is not parallel to either the horizontal or vertical lines of the plane containing the pressing wall; wherein, The outer shell and weight reduction mechanism are integrally formed using 3D printing technology.

2. The button of the electronic product according to claim 1, characterized in that, The inner wall of the pressing wall has two downward-facing cylinders on both sides for connecting to the power source, thus enabling the power connection of the button.

3. The button of the electronic product according to claim 1, characterized in that, The length and width of the grid structure are greater than or equal to 1 mm and less than or equal to 2 mm.

4. The button of the electronic product according to claim 1, characterized in that, The weight-reducing groove is circular or hexagonal in shape.

5. The button of the electronic product according to claim 4, characterized in that, The diameter of the circle or the side length of the hexagon does not exceed half the width of the outer peripheral sidewall.

6. The button of the electronic product according to claim 1, characterized in that, The weight-reducing grooves are evenly distributed on the outer peripheral sidewall, and the distance between adjacent weight-reducing grooves is 0.3mm-1mm.

7. The button of the electronic product according to claim 4, characterized in that, The depth to which the weight-reducing groove is embedded in the outer peripheral sidewall does not exceed one-half the thickness of the outer peripheral sidewall.

8. The button of the electronic product according to claim 1, characterized in that, The thickness of both the pressing wall and the outer peripheral sidewall is 0.2mm-0.5mm.

9. The button of the electronic product according to claim 1, characterized in that, The thickness of the reinforcing rib is 0.1mm-0.3mm.

10. The button of the electronic product according to any one of claims 1 to 9, characterized in that, The angle between the reinforcing rib and the horizontal line of the plane where the pressing wall is located is 45°-70°.

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