Bluetooth earphone PCBA structure

Abstract

The utility model relates to the technical field of PCBA structures, in particular to a Bluetooth earphone PCBA structure, which comprises a first shell, a second shell is fixedly mounted on one side of the first shell through bolts, an assembly frame is fixedly connected to the inner wall of the first shell, and a PCBA board main body is fixedly connected to the assembly frame. Compared with the prior art, the PCBA board has the advantages that the bottom surface of the PCBA board main body is attached to the top surface of the supporting plate, the middle part of the PCBA board main body can be supported and positioned, then the second shell is locked on the first shell by using the bolts, the bottom surface of the pressing plate is attached to the front surface of the PCBA board main body at the moment, and four corners of the PCBA board main body can be locked, so that the PCBA board main body can be conveniently assembled and disassembled. According to the PCBA board, the PCBA board body does not need to be locked through bolts, installation of the PCBA board body is facilitated, the locking plate, the rotating plate and the supporting plate can support and position the middle portion of the PCBA board body, and the stability of the middle portion of the PCBA board body is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of PCBA structure technology, and in particular to a Bluetooth headset PCBA structure. Background Technology

[0002] As an important component of modern communication devices, the design and optimization of the internal structure of Bluetooth headsets directly affect product performance and user experience. Among these components, the PCBA (Printed Circuit Board Assembly) is the core of a Bluetooth headset, responsible for key functions such as wireless connectivity, audio transmission, battery management, and user interaction.

[0003] In existing Bluetooth headset designs, the PCBA structure is typically mounted inside the headset housing using locking bolts. Specifically, the four corners of the PCBA structure are secured to the headset interior with these bolts. While this mounting method is simple and straightforward, it has significant drawbacks. Because only the four corners are locked, the peripheral parts of the PCBA structure lack necessary support, resulting in poor stability in the middle section. Under prolonged use or impact, the PCBA structure may deform or loosen, affecting the stability of the circuit connections and the overall performance of the headset. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to propose a Bluetooth headset PCBA structure to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a Bluetooth headset PCBA structure, including a first outer shell. A second outer shell is fixedly mounted to one side of the first outer shell by bolts. An assembly frame is fixedly connected to the inner wall of the first outer shell. A PCBA board body is fixedly connected to the assembly frame. A plurality of symmetrically arranged support columns are fixedly connected to the inner wall of the first outer shell. The back of the PCBA board body is abutted against the top of the support columns. The plurality of support columns are all located inside the assembly frame. A positioning pin is fixedly connected to the end of each support column away from the first outer shell. The PCBA board body is slidably connected to the plurality of positioning pins. A plurality of symmetrically arranged pressure plates are fixedly connected to the inner wall of the second outer shell. The plurality of pressure plates correspond one-to-one with the plurality of positioning pins. The bottom surface of the pressure plate is in contact with the front surface of the PCBA board body. Two symmetrically arranged grooves are provided on the side of the assembly frame away from the first outer shell. A rotating plate and a locking plate are slidably connected to the inner walls of the two grooves respectively. Two symmetrically arranged connecting plates are fixedly connected between the locking plate and the rotating plate. The bottom surfaces of the locking plate and the rotating plate are in contact with the front surface of the PCBA board body. Rotating shafts are fixedly connected to the left and right sides of the rotating plate. Both rotating shafts are rotatably connected to the assembly frame. A sliding groove is provided on the top surface of the locking plate. Two symmetrically arranged control plates are slidably connected to the inner wall of the sliding groove. A spring is fixedly connected between the two control plates. A locking pin is fixedly connected to the side of each control plate away from the spring. Both locking pins penetrate the locking plate and engage with the assembly frame.

[0007] Preferably, in any of the above solutions, the top surface of the positioning pin is provided with a guide hole, and a guide rod is fixedly connected to the side of the pressure plate near the PCBA board body. The guide rod is slidably connected to the positioning pin through the guide hole.

[0008] Preferably, in any of the above solutions, the inner wall of the second outer shell is fixedly connected with two symmetrically arranged card plates, and the assembly frame has two symmetrically arranged card slots on the side away from the first outer shell, and the card plates are engaged with the assembly frame through the card slots.

[0009] Preferably, in any of the above solutions, the inner wall of the assembly frame is fixedly connected to two symmetrically arranged support plates, and the top surface of the support plates is in contact with the back of the PCBA board body.

[0010] Preferably, one side of the PCBA board body has a plurality of symmetrically arranged locking holes, the PCBA board body is slidably connected to the positioning pin through the locking holes, and the thickness of the PCBA board body is equal to the length of the positioning pin.

[0011] Preferably, in any of the above solutions, each of the support plates has two symmetrically arranged reinforcing ribs fixedly connected to its bottom, and both reinforcing ribs are fixedly connected to the assembly frame.

[0012] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0013] When installing the PCBA board body, insert the PCBA board body into the assembly frame until the positioning pin is fully inserted into the locking hole. This completes the initial installation of the PCBA board body. Then, push the locking plate to make it rotate the rotating plate around the rotating axis until the locking plate rotates to the appropriate position. Then, press the control plate to make the locking pin engage with the assembly frame. At this time, the bottom surfaces of the locking plate and the rotating plate are in contact with the front surface of the PCBA board body, and the bottom surface of the PCBA board body is in contact with the top surface of the support plate. This supports and positions the middle part of the PCBA board body. Then, use bolts to lock the second outer shell onto the first outer shell. At this time, the bottom surface of the pressure plate is in contact with the front surface of the PCBA board body, which locks the four corners of the PCBA board body. This not only eliminates the need to use bolts to lock the four corners of the PCBA board body, making the installation of the PCBA board body easier, but also the locking plate, rotating plate, and support plate can support and position the middle part of the PCBA board body, greatly improving the stability of the middle part of the PCBA board body. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the assembly of this utility model;

[0015] Figure 2 This is an exploded structural diagram of the assembly of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the first outer shell of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the second outer shell of this utility model;

[0018] Figure 5 This is a schematic diagram of the rotating plate of this utility model.

[0019] In the diagram: 1-First outer shell, 2-Second outer shell, 3-Assembly frame, 4-PCBA board body, 5-Support column, 6-Positioning pin, 7-Pressure plate, 8-Groove, 9-Rotating plate, 10-Locking plate, 11-Connecting plate, 12-Rotating shaft, 13-Slide groove, 14-Control plate, 15-Spring, 16-Locking pin, 17-Guide hole, 18-Guide rod, 19-Clamping plate, 20-Clamping slot, 21-Supporting plate, 22-Locking hole, 23-Reinforcing rib. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0021] like Figures 1 to 5 As shown, a Bluetooth headset PCBA structure includes a first shell 1. A second shell 2 is bolted to one side of the first shell 1. An assembly frame 3 is fixedly connected to the inner wall of the first shell 1. A PCBA board body 4 is fixedly connected to the assembly frame 3. A plurality of symmetrically arranged support columns 5 are fixedly connected to the inner wall of the first shell 1. The back of the PCBA board body 4 is abutted against the top of the support columns 5. The plurality of support columns 5 are all located inside the assembly frame 3. A positioning pin 6 is fixedly connected to the end of each support column 5 away from the first shell 1. The PCBA board body 4 is slidably connected to the plurality of positioning pins 6. A plurality of symmetrically arranged pressure plates 7 are fixedly connected to the inner wall of the second shell 2. The plurality of pressure plates 7 correspond one-to-one with the plurality of positioning pins 6. The bottom surface of the pressure plate 7 is abutted against the front surface of the PCBA board body 4. Two symmetrically arranged grooves 8 are provided on the side of the assembly frame 3 away from the first outer shell 1. The inner walls of the two grooves 8 are slidably connected to a rotating plate 9 and a locking plate 10, respectively. Two symmetrically arranged connecting plates 11 are fixedly connected between the locking plate 10 and the rotating plate 9. The bottom surfaces of the locking plate 10 and the rotating plate 9 are in contact with the front surface of the PCBA board body 4. Rotating shafts 12 are fixedly connected to the left and right sides of the rotating plate 9. The two rotating shafts 12 are rotatably connected to the assembly frame 3. A sliding groove 13 is provided on the top surface of the locking plate 10. Two symmetrically arranged control plates 14 are slidably connected to the inner wall of the sliding groove 13. A spring 15 is fixedly connected between the two control plates 14. A locking pin 16 is fixedly connected to the side of each control plate 14 away from the spring 15. The two locking pins 16 penetrate the locking plate 10 and are engaged with the assembly frame 3.

[0022] As an optional technical solution of this utility model, the top surface of the positioning pin 6 is provided with a guide hole 17, and the side of the pressure plate 7 near the PCBA board body 4 is fixedly connected with a guide rod 18. The guide rod 18 is slidably connected to the positioning pin 6 through the guide hole 17. The second outer shell 2 is locked onto the first outer shell 1 using bolts. At this time, the bottom surface of the pressure plate 7 is in contact with the front surface of the PCBA board body 4, and the four corners of the PCBA board body 4 can be locked.

[0023] As an optional technical solution of this utility model, the inner wall of the second outer shell 2 is fixedly connected with two symmetrically arranged card plates 19, and the side of the assembly frame 3 away from the first outer shell 1 is provided with two symmetrically arranged card slots 20. The card plates 19 are engaged with the assembly frame 3 through the card slots 20, and the second outer shell 2 is engaged with the first outer shell 1 through the card plates 19, which can make the connection between the second outer shell 2 and the first outer shell 1 more stable.

[0024] As an optional technical solution of this utility model, the inner wall of the assembly frame 3 is fixedly connected with two symmetrically arranged support plates 21. The top surface of the support plate 21 is in contact with the back of the PCBA board body 4. The locking plate 10, the rotating plate 9 and the support plate 21 can support and position the middle part of the PCBA board body 4, which greatly improves the stability of the middle part of the PCBA board body 4.

[0025] As an optional technical solution of this utility model, a number of symmetrically arranged locking holes 22 are provided through one side of the PCBA board body 4. The PCBA board body 4 is slidably connected to the positioning pin 6 through the locking holes 22. The thickness of the PCBA board body 4 is equal to the length of the positioning pin 6.

[0026] As an optional technical solution of this utility model, each support plate 21 has two symmetrically arranged reinforcing ribs 23 fixedly connected to its bottom. Both reinforcing ribs 23 are fixedly connected to the assembly frame 3. The reinforcing ribs 23 can support the support plate 21 and improve the stability of the support plate 21.

[0027] A Bluetooth headset PCBA structure, the working principle of which is as follows:

[0028] 1) When it is necessary to install the PCBA board body 4, insert the PCBA board body 4 into the assembly frame 3 until the positioning pin 6 is fully inserted into the locking hole 22, and the initial installation of the PCBA board body 4 can be achieved.

[0029] 2): Push the locking plate 10 to make it drive the rotating plate 9 to rotate around the rotating shaft 12 until the locking plate 10 rotates to the appropriate position. Then press the control plate 14 to drive the locking pin 16 to engage with the assembly frame 3.

[0030] 3): Use bolts to lock the second outer shell 2 onto the first outer shell 1. At this time, the bottom surface of the pressure plate 7 is in contact with the front surface of the PCBA board body 4, which can lock the four corners of the PCBA board body 4.

[0031] In summary, for the Bluetooth headset PCBA structure, when installing the PCBA board body 4, the PCBA board body 4 is inserted into the assembly frame 3 until the positioning pin 6 is fully inserted into the locking hole 22, thus achieving initial installation of the PCBA board body 4. Then, the locking plate 10 is pushed to cause the rotating plate 9 to rotate around the rotating shaft 12 until the locking plate 10 rotates to the appropriate position. Afterwards, the control plate 14 is pressed to engage the locking pin 16 with the assembly frame 3. At this point, the bottom surfaces of the locking plate 10 and the rotating plate 9 are in contact with the front surface of the PCBA board body 4, and the bottom surface of the PCBA board body 4 is in contact with the support plate. The top surface of plate 21 is in contact with the first shell 1, which can support and position the middle part of the PCBA board body 4. Then, bolts are used to lock the second shell 2 onto the first shell 1. At this time, the bottom surface of the pressure plate 7 is in contact with the front surface of the PCBA board body 4, which can lock the four corners of the PCBA board body 4. Not only is it not necessary to use bolts to lock the four corners of the PCBA board body 4, which facilitates the installation of the PCBA board body 4, but the locking plate 10, rotating plate 9 and support plate 21 can support and position the middle part of the PCBA board body 4, which greatly improves the stability of the middle part of the PCBA board body 4.

Claims

1. A Bluetooth headset PCBA structure, characterized in that: The assembly includes a first outer shell (1), a second outer shell (2) is fixedly installed on one side of the first outer shell (1) by bolts, an assembly frame (3) is fixedly connected to the inner wall of the first outer shell (1), a PCBA board body (4) is fixedly connected to the assembly frame (3), a number of symmetrically arranged support columns (5) are fixedly connected to the inner wall of the first outer shell (1), the back of the PCBA board body (4) is in contact with the top of the support columns (5), the number of support columns (5) are all located inside the assembly frame (3), a positioning pin (6) is fixedly connected to the end of each support column (5) away from the first outer shell (1), the PCBA board body (4) is slidably connected to the number of positioning pins (6), a number of symmetrically arranged pressure plates (7) are fixedly connected to the inner wall of the second outer shell (2), the number of pressure plates (7) corresponds one-to-one with the number of positioning pins (6), the bottom surface of the pressure plate (7) is in contact with the front surface of the PCBA board body (4), the assembly frame (3) is located away from the first outer shell (1 ... a number of symmetrically arranged pressure plates (7) are fixedly connected to the inner wall of the second outer shell (2), the number of pressure plates (7) corresponds one-to-one with the number of positioning pins (6), the number of positioning pins (6) is slidably connected to the inner wall of the second outer shell (2), the number of positioning pins (6) is s Two symmetrically arranged grooves (8) are provided on one side of the outer casing (1). A rotating plate (9) and a locking plate (10) are slidably connected to the inner walls of the two grooves (8). Two symmetrically arranged connecting plates (11) are fixedly connected between the locking plate (10) and the rotating plate (9). The bottom surfaces of the locking plate (10) and the rotating plate (9) are in contact with the front surface of the PCBA board body (4). Rotating shafts (12) are fixedly connected to the left and right sides of the rotating plate (9). The rotating shaft (12) is rotatably connected to the assembly frame (3). The top surface of the locking plate (10) is provided with a sliding groove (13). The inner wall of the sliding groove (13) is slidably connected to two symmetrically arranged control plates (14). A spring (15) is fixedly connected between the two control plates (14). A locking pin (16) is fixedly connected to the side of each control plate (14) away from the spring (15). Both locking pins (16) pass through the locking plate (10) and engage with the assembly frame (3).

2. The Bluetooth headset PCBA structure according to claim 1, characterized in that: The top surface of the positioning pin (6) is provided with a guide hole (17), and the pressure plate (7) is fixedly connected to a guide rod (18) on the side near the PCBA board body (4). The guide rod (18) is slidably connected to the positioning pin (6) through the guide hole (17).

3. The Bluetooth headset PCBA structure according to claim 2, characterized in that: The inner wall of the second outer shell (2) is fixedly connected with two symmetrically arranged card plates (19). The assembly frame (3) has two symmetrically arranged card slots (20) on the side away from the first outer shell (1). The card plates (19) are engaged with the assembly frame (3) through the card slots (20).

4. The Bluetooth headset PCBA structure according to claim 3, characterized in that: The inner wall of the assembly frame (3) is fixedly connected to two symmetrically arranged support plates (21), and the top surface of the support plates (21) is in contact with the back of the PCBA board body (4).

5. The Bluetooth headset PCBA structure according to claim 4, characterized in that: A plurality of symmetrically arranged locking holes (22) are provided through one side of the PCBA board body (4). The PCBA board body (4) is slidably connected to the positioning pin (6) through the locking holes (22). The thickness of the PCBA board body (4) is equal to the length of the positioning pin (6).

6. The Bluetooth headset PCBA structure according to claim 5, characterized in that: Each of the support plates (21) has two symmetrically arranged reinforcing ribs (23) fixedly connected to its bottom, and both reinforcing ribs (23) are fixedly connected to the assembly frame (3).

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