fixing structure

Abstract

A fixing structure includes a housing, a circuit board and a fixing element. The circuit board is arranged on the housing. The fixing element passes through the circuit board and extends into the housing, wherein the fixing element has a head portion, an intermediate portion and a screwing portion connected in sequence, the side surface of the intermediate portion is a smooth structure, and the side surface of the screwing portion has external threads. The fixing structure is used for assembling and / or fixing a plurality of components, and the problem that the circuit board is affected by stress is improved.

Description

Technical Field

[0001] This utility model relates to a fixing structure, and more particularly to a fixing structure for assembling and / or fixing multiple components. Background Technology

[0002] In recent years, the miniaturization of electronic devices, coupled with high performance, improved camera module resolution, and rapid advancements in image recognition and artificial intelligence (AI), has led to the widespread application of camera equipment. The purpose of capturing images is no longer just recording; it also includes functions such as interaction with the environment, identification, and even communication. This wider application has also increased demands on image quality and module processing performance. Consumers are increasingly less accepting of issues such as vignetting, resolution problems, blurriness, and noise in audio recording and / or playback. However, current mounting structures used in electronic devices still produce issues such as blurry audio and video and noise. Therefore, there is an urgent need for a mounting structure that can improve image quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a fixing structure that addresses the above-mentioned defects of the prior art. The fixing structure can improve the problem of stress affecting the circuit board, thus providing better image quality.

[0004] To achieve the above objectives, this utility model provides a fixing structure, comprising:

[0005] case;

[0006] Circuit board, disposed on the housing; and

[0007] A fixing element passes through the circuit board and extends into the housing. The fixing element has a head, a middle part and a threaded part connected in sequence. The side surface of the middle part has a smooth structure and the side surface of the threaded part has external threads.

[0008] To better achieve the above objectives, this utility model also provides a fixing structure, comprising:

[0009] case;

[0010] The circuit board is mounted on the housing;

[0011] Sheet metal, disposed on the circuit board; and

[0012] A fixing element passes through the sheet metal and extends into the housing. The fixing element has a head, a middle part and a threaded part connected in sequence. The side surface of the middle part has a smooth structure and the side surface of the threaded part has external threads.

[0013] In the aforementioned fixing structure, the housing includes a fixing post, the threaded portion of the fixing element extends into a hollow tube of the fixing post, and the sheet metal is disposed on the fixing post.

[0014] In the aforementioned fixing structure, the diameter of the head is larger than the diameter of the middle portion, and there is a gap between the head and the sheet metal.

[0015] In the aforementioned fixing structure, the housing includes a fixing post, the threaded portion of the fixing element extends into the hollow tube of the fixing post, and the middle portion of the fixing element is disposed on the fixing post.

[0016] In the aforementioned fixing structure, the diameter of the middle portion is larger than the inner diameter of the hollow tube, and the middle portion abuts against the top surface of the fixing column.

[0017] In the aforementioned fixing structure, the diameter of the head is larger than the diameter of the middle part, and there is a gap between the head and the circuit board.

[0018] The aforementioned fixing structure further includes a buffer portion disposed in the gap, and a gap exists between the intermediate portion and the circuit board.

[0019] The aforementioned fixing structure further includes a sheet metal disposed on the circuit board and extending into the gap, a buffer portion disposed between the sheet metal and the head, and the fixing element penetrating the sheet metal.

[0020] In the aforementioned fixing structure, the height of the middle portion is greater than the thickness of the circuit board.

[0021] The beneficial effects of this utility model are as follows:

[0022] The fixing structure of the electromechanical device of this utility model includes a fixing element. The side surface of the middle part of the fixing element is a smooth structure without threads. The middle part is not fixed to the sheet metal or circuit board by rotating with threads, so the circuit board is not easily affected by stress and better image quality can be obtained.

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0024] Figure 1A This is a schematic diagram of the electromechanical device according to Embodiment 1 of this utility model;

[0025] Figure 1B for Figure 1A A cross-sectional view of the electromechanical device along the line 1B-1B';

[0026] Figure 1C for Figure 1BA schematic diagram of the fixing element;

[0027] Figure 1D for Figure 1B The diagram shows the fixed structure of the electromechanical device.

[0028] Figure 2A This is a schematic diagram of the electromechanical device according to Embodiment 2 of this utility model;

[0029] Figure 2B for Figure 2A Exploded view of the electromechanical device;

[0030] Figure 2C for Figure 2A A cross-sectional view of the electromechanical device along the line 2C-2C';

[0031] Figure 2D for Figure 2C A schematic diagram of the fixing element;

[0032] Figure 2E for Figure 2C The diagram shows the fixed structure of the electromechanical device.

[0033] Figure 3A This is a schematic diagram of the electromechanical device according to Embodiment 3 of this utility model;

[0034] Figure 3B for Figure 3A A cross-sectional view of the electromechanical equipment along the line 3B-3B';

[0035] Figure 3C for Figure 3B A schematic diagram of the fixing element;

[0036] Figure 3D for Figure 3B The diagram shows the fixed structure of the electromechanical device. Detailed Implementation

[0037] The structural and working principles of the present invention will be described in detail below with reference to the accompanying drawings:

[0038] Figure 1A This is a schematic diagram of the electromechanical device 10 according to Embodiment 1 of this utility model. Figure 1B for Figure 1A A cross-sectional view of the electromechanical device 10 along the line 1B-1B'. Figure 1C for Figure 1B A schematic diagram of the fixing element 150. Figure 1D for Figure 1B The fixed structure 10S of the electromechanical device 10 shown.

[0039] Please refer to the following at the same time Figure 1A , Figure 1B ,1C And 1D, the electromechanical device 10 has a fixing structure 10S, which includes a housing 110, a circuit board 130, and a fixing element 150. The circuit board 130 is disposed on the housing 110. The fixing element 150 passes through the circuit board 130 and extends into the housing 110. The electromechanical device 10 may be a camera device, a communication device, a portable precision instrument, or an electromechanical device, but is not limited thereto.

[0040] The fixing element 150 has a head 152, a middle portion 154, and a threaded portion 156 connected in sequence. The side surface 154s of the middle portion 154 has a smooth structure, and the side surface of the threaded portion 156 has external threads 156s. The diameter of the head 152 of the fixing element 150 is larger than the diameter of the middle portion 154, and the diameter of the middle portion 154 is larger than the diameter of the threaded portion 156. In addition, the fixing element 150 also has a first interface 152m where the head 152 and the middle portion 154 meet, and a second interface 154m where the middle portion 154 and the threaded portion 156 meet.

[0041] The housing 110 includes a fixing post 112. The fixing post 112 has an internally hollow tube 112h and an internal thread 112s, the internal thread 112s being disposed on the inner surface of the hollow tube 112h. The threaded portion 156 of the fixing element 150 extends into the hollow tube 112h of the fixing post 150, that is, the threaded portion 156 can be sleeved on the hollow tube 112h. The external thread 156s of the threaded portion 156 can be locked with the internal thread 112s of the fixing post 112.

[0042] The diameter of the middle portion 154 of the fixing element 150 is larger than the inner diameter of the hollow tube 112h. When the fixing element 150 passes through the circuit board 130 and the hollow tube 112h, the middle portion 154 of the fixing element 150 can penetrate through the opening of the circuit board 130 and be disposed on the fixing post 112. That is, the middle portion 154 is not disposed inside the hollow tube 112h and the side surface 154s does not have structural interference with the inner wall of the opening of the circuit board 130. Specifically, the middle portion 154 can abut against the fixing post 112, that is, the second interface 154m where the middle portion 154 and the screw portion 156 meet can abut against the top surface 112t of the fixing post 112, forming a stop state, so that the middle portion 154 will not slide down into the hollow tube 112h. Furthermore, there may be a gap in the Z direction between the head 152 of the fixing element 150 and the circuit board 130, that is, there may be a gap in the Z direction between the first interface 152m where the head 152 and the middle part 154 of the fixing element 150 meet and the circuit board 130, meaning that the head 152 is not directly connected to the circuit board 130.

[0043] According to some embodiments, the fixing structure 10S further includes a buffer portion 170, which is disposed between the head 152 of the fixing element 150 and the circuit board 130, that is, the buffer portion 170 is disposed in the gap between the first interface 152m and the circuit board 130. The circuit board 130 is disposed on the top surface 112t of the fixing post 112. Specifically, there may be a gap between the circuit board 130 and the middle portion 154, and they are not completely sealed. Therefore, the buffer portion 170 can be disposed between the head 152 of the fixing element 150 and the circuit board 130, that is, by disposing the buffer portion 170 in the gap between the first interface 152m and the circuit board 130, the fixing element 150 can be prevented from shaking.

[0044] According to some embodiments, the material of the buffer portion 170 may be an adhesive, rubber, or other suitable material. The adhesive may be an optical adhesive or other suitable adhesive. The optical adhesive may be a UV-curable adhesive, which can be applied to the circuit board 130 and the fixing element 150 by dispensing and irradiating with UV light.

[0045] According to some embodiments, the thickness of the circuit board 130 in the Z direction may be between 0.5 mm and 3 mm, the thickness of the buffer portion 170 may be between 0.5 mm and 2 mm, and the height of the middle portion 154 may be between 1 mm and 5.5 mm, but this is not intended to limit the present invention.

[0046] Figure 2A This is a schematic diagram of the electromechanical device 20 according to Embodiment 2 of the present invention. Figure 2B for Figure 2A Exploded view of the electromechanical device 20. Figure 2C for Figure 2A A cross-sectional view of the electromechanical device 20 along the line 2C-2C'. Figure 2D for Figure 2C A schematic diagram of the fixing element 250. Figure 2E for Figure 2C The electromechanical device 20 shown has a fixing structure 20S. The difference between fixing structure 20S and fixing structure 10S is that fixing structure 20S also includes sheet metal 240, and the arrangement of circuit board 230 and fixing element 250 of fixing structure 20S is slightly different from that of circuit board 130 and fixing element 150 of fixing structure 10S, respectively. Other identical or similar elements use the same or similar element symbols, and identical or similar parts will not be described in detail.

[0047] Please refer to Figure 2A , Figure 2B , Figure 2C , Figure 2D and Figure 2EThe fixing structure 20S includes a housing 110, a circuit board 230, a sheet metal 240, and a fixing element 250. The circuit board 230 is disposed on the housing 110. The sheet metal 240 is disposed on the circuit board 230. The fixing element 250 passes through the sheet metal 240 and the circuit board 230 and extends into the housing 110. The fixing element 250 has a head 252, a middle portion 254, and a threaded portion 256 connected in sequence. The side surface 254s of the middle portion 254 has a smooth structure, and the side surface of the threaded portion 256 has an external thread 256s.

[0048] The circuit board 230 and the sheet metal 240 can be joined and fixed by adhesive, screws, or other means. The main difference between the fixing element 250 and the fixing element 150 is that the fixing element 250 penetrates the sheet metal 240, so the height of the middle part 254 in the Z direction can be different from that of the middle part 154 in the Z direction. When the fixing element 250 is inserted into the sheet metal 240 and the hollow tube 112h, the screw portion 256 of the fixing element 250 extends into the hollow tube 112h of the fixing post 112. The middle part 254 of the fixing element 250 can penetrate through the opening of the sheet metal 240 and be disposed on the fixing post 112. That is, the middle part 254 is not disposed inside the hollow tube 112h and the side surface 254s does not have structural interference with the inner wall of the opening of the sheet metal 240. The sheet metal 240 is disposed on the top surface 112t of the fixing post 112. The top surface 112t of the fixing post 112 is flush with, for example, the top surface 230t of the circuit board 230. That is, the circuit board 230 does not contact the fixing post 112 or the fixing element 250. The circuit board 230 has a recess corresponding to the fixing post 112, and the circuit board 230 does not overlap the fixing post 112 in the Z direction. Specifically, if the thickness of the sheet metal 240 in the Z direction is less than or equal to the thickness of the circuit board 130 in the Z direction, then the length of the intermediate portion 254 in the Z direction can be less than or equal to the length of the intermediate portion 154 in the Z direction.

[0049] A gap may exist between the head 252 of the fixing element 250 and the sheet metal 240. Specifically, a gap may exist in the Z-direction between the first interface 252m between the head 252 and the middle portion 254 of the fixing element 250 and the sheet metal 240, meaning the head 252 is not directly connected to the sheet metal 240. The fixing structure 20S also includes a buffer portion 170 as described above. The buffer portion 170 may be disposed between the head 252 of the fixing element 250 and the sheet metal 240, that is, the buffer portion 170 is disposed in the gap between the first interface 252m and the sheet metal 240. A gap may exist between the sheet metal 240 and the middle portion 254, preventing complete sealing. Therefore, by disposing the buffer portion 170 in the gap between the first interface 252m and the sheet metal 240, the shaking of the fixing element 250 can be prevented.

[0050] According to some embodiments, the thickness of the circuit board 130 in the Z direction can be between 0.5 mm and 3 mm, the thickness of the buffer portion 170 can be between 0.5 mm and 2 mm, the height of the middle portion 154 can be between 1 mm and 5.5 mm, and the thickness of the sheet metal 240 can be between 0.5 mm and 1.5 mm, but this is not intended to limit the present invention.

[0051] According to some embodiments, the diameter of the circuit board 230 may be between 30 mm and 40 mm, and the area of ​​the sheet metal 240 may be between 20 mm × 22 mm and 33 mm × 28 mm.

[0052] The fixing structure 20S in this embodiment also includes sheet metal 240, which can further reduce the impact of stress on the circuit board 230, thereby enhancing the stability of the internal components during the operation of the electromechanical device 20.

[0053] Figure 3A This is a schematic diagram of the electromechanical device 30 according to Embodiment 3 of this utility model. Figure 3B for Figure 3A A cross-sectional view of the electromechanical device 30 along the line 3B-3B'. Figure 3C for Figure 3B A schematic diagram of the fixing element 350. Figure 3D for Figure 3B The electromechanical device 30 shown has a fixing structure 30S. The difference between fixing structure 30S and fixing structure 10S is that fixing structure 30S also includes sheet metal 340, and the setting of fixing element 350 is slightly different from that of fixing element 150. Other identical or similar elements use the same or similar element symbols, and identical or similar parts will not be described in detail.

[0054] Please refer to the following at the same time Figure 3A , Figure 3B , Figure 3C and Figure 3D The fixing structure 30S includes a housing 110, a circuit board 130, a sheet metal 340, and a fixing element 350. The circuit board 130 is disposed on the housing 110. The sheet metal 340 is disposed on the circuit board 130. The fixing element 350 passes through the circuit board 130 and the sheet metal 340 and extends into the housing 110. The fixing element 350 has a head 352, a middle portion 354, and a threaded portion 356 connected in sequence. The side surface 354s of the middle portion 354 has a smooth structure, and the side surface of the threaded portion 356 has an external thread 356s.

[0055] The fixing element 350 penetrates both the circuit board and the sheet metal 340. Therefore, the height of the middle part 354 in the Z direction can be greater than the height of the middle part 154 in the Z direction, and it can also be greater than the height of the middle part 254 in the Z direction. When the fixing element 350 is installed in the circuit board 130, the sheet metal 340 and the hollow tube 112h, the middle part 354 can penetrate the opening of the circuit board 130 and the opening of the sheet metal 340. Moreover, the screw part 356 is set on the fixing post 112. That is, the middle part 354 is not set inside the hollow tube 112h and the side surface 354s will not have structural interference with the inner wall of the opening of the circuit board 130 and the inner wall of the opening of the sheet metal 340. There may be a gap between the head 352 of the fixing element 350 and the circuit board 130. That is, there may be a gap in the Z direction between the first interface 352m where the head 352 of the fixing element 350 and the middle part 354 meet and the circuit board 130. The sheet metal 340 may also extend into the gap between the first interface 352m and the circuit board 130, while there is still a partial gap between the sheet metal 340 and the first interface 352m, so that the head 352 is not directly connected to the sheet metal 340. The fixing structure 30S also includes a buffer part 170 as described above, which is disposed in the gap between the first interface 352m and the sheet metal 340. There may be gaps between the circuit board 130 and the middle part 354, and between the sheet metal 340 and the middle part 354, so they may not be completely sealed. Therefore, the buffer portion 170 can be disposed between the head 352 of the fixing element 350 and the sheet metal 340. That is, by disposing the buffer portion 170 in the gap between the first interface 352m and the sheet metal 340, the fixing element 350 can be fixed to prevent it from shaking. In this embodiment, the height of the middle portion 354 in the Z direction is greater than the thickness of the circuit board 130 in the Z direction. In addition, the circuit board 130 can be disposed on the fixing post 112, and the sheet metal 340 can be disposed on the circuit board 130.

[0056] According to some embodiments, the thickness of the circuit board 130 in the Z direction can be between 0.5 mm and 3 mm, the thickness of the buffer portion 170 can be between 0.5 mm and 2 mm, the height of the middle portion 154 can be between 1 mm and 5.5 mm, and the thickness of the sheet metal 340 can be between 0.5 mm and 2 mm, but this is not intended to limit the present invention.

[0057] Accordingly, in one embodiment of the present invention, the electromechanical device 10 is exemplified by a camera device. The electromechanical device 10 further includes at least a lens module 190 and an image sensor 133. The image sensor 133 is disposed on the imaging surface of the lens module 190 and on the circuit board 130. Since the fixing structure of the electromechanical device of the present invention includes a fixing element, and the side surface of the middle part of the fixing element is a smooth structure without threads, and the middle part is not fixed to the sheet metal or circuit board by thread rotation, the circuit board is not easily affected by stress, and better image quality can be obtained.

[0058] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A fixed structure, characterized in that, include: case; The circuit board is mounted on the housing; as well as A fixing element passes through the circuit board and extends into the housing. The fixing element has a head, a middle part and a threaded part connected in sequence. The side surface of the middle part has a smooth structure and the side surface of the threaded part has external threads.

2. A fixed structure, characterized in that, include: case; The circuit board is mounted on the housing; Sheet metal, mounted on the circuit board; as well as A fixing element passes through the sheet metal and extends into the housing. The fixing element has a head, a middle part and a threaded part connected in sequence. The side surface of the middle part has a smooth structure and the side surface of the threaded part has external threads.

3. The fixing structure as described in claim 2, characterized in that, The housing includes a fixing post, the threaded portion of the fixing element extends into a hollow tube of the fixing post, and the sheet metal is disposed on the fixing post.

4. The fixing structure as described in claim 2, characterized in that, The diameter of the head is larger than the diameter of the middle part, and there is a gap between the head and the sheet metal.

5. The fixing structure as described in claim 1 or 2, characterized in that, The housing includes a fixing post, the threaded portion of the fixing element extends into the hollow tube of the fixing post, and the middle portion of the fixing element is disposed on the fixing post.

6. The fixing structure as described in claim 5, characterized in that, The diameter of the middle part is larger than the inner diameter of the hollow tube, and the middle part abuts against the top surface of the fixed column.

7. The fixing structure as described in claim 6, characterized in that, The diameter of the head is larger than the diameter of the middle part, and there is a gap between the head and the circuit board.

8. The fixing structure as described in claim 7, characterized in that, It also includes a buffer section disposed in the gap, and there is a gap between the middle section and the circuit board.

9. The fixing structure as described in claim 8, characterized in that, It also includes a sheet metal plate disposed on the circuit board and extending into the gap, a buffer portion disposed between the sheet metal plate and the head, and a fixing element penetrating the sheet metal plate.

10. The fixing structure as described in claim 1 or 2, characterized in that, The height of the middle section is greater than the thickness of the circuit board.

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