Signal pin assembly structure

Abstract

The utility model discloses a signal pin assembly structure, which comprises a control board PCBA, a drive board PCBA and a signal pin assembly, and is characterized in that the signal pin assembly is used for connecting the control board PCBA and the drive board PCBA; the signal contact pin assembly comprises a signal contact pin body, and a plastic fixing piece and a silica gel buffer piece which are symmetrically arranged at two ends of the signal contact pin body, the plastic fixing piece is used for fixing the signal contact pin body, the silica gel buffer piece plays a role in buffering, the control board PCBA is provided with a double-row female connector, and the double-row female connector is connected with the signal contact pin body. A patch socket is arranged on the driving board PCBA; the upper end of the signal pin body is inserted into the double-row female connector, and the lower end of the signal pin body is inserted into the patch socket. According to the utility model, the problem of vibration resistance of signal link between the driving board and the control board of the fuel cell air compressor controller can be effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen fuel cell air compressor controller technology, and in particular to a signal pin assembly structure. Background Technology

[0002] Fuel cells, as a clean and pollution-free power source, have been actively used in new energy electric vehicles. However, when fuel cells provide power output for new energy electric vehicles, in addition to hydrogen fuel, they also require a reliable and stable supply of sufficient air (mainly oxygen). This places extremely stringent requirements on the operating control of the fuel cell air compressor. Therefore, the quality and control performance of the air compressor controller are of paramount importance.

[0003] The internal main circuit block diagram of the fuel cell air compressor controller is as follows: Figure 1 As shown.

[0004] The fuel cell air compressor controller contains a drive board PCBA1 and a control board PCBA2. The signal connection between drive board PCBA1 and control board PCBA2 is achieved through signal pins 3. The structure is shown below. Figure 2 The bottom of the control board PCBA2 has a centipede-pin socket 4 (see...). Figure 3 As shown), the driver board PCBA1 also has a surface mount socket 5, which is used to connect signals via intermediate signal pins 3 (see details of pin assembly). Figure 4 and Figure 5 As shown in the figure, since the fuel cell air compressor controller is used in automobiles, it needs to meet the mechanical load test of GB / T24347 / GB28046.3, that is, to meet the vibration test. It is necessary to conduct sweep frequency vibration, random vibration and mechanical shock experiments. After the experiment, it was found that the centipede-pin socket 4 on the control board PCBA2 is easy to break. The control board PCBA2 and the centipede-pin socket 4 are separated, resulting in the interruption of the signal link. Utility Model Content

[0005] The main purpose of this invention is to propose a signal pin assembly structure, which aims to solve the problem of vibration resistance in the signal connection between the drive board and the control board of the fuel cell air compressor controller.

[0006] To achieve the above objectives, this utility model provides a signal pin assembly structure, including a control board PCBA, a driver board PCBA, and a signal pin assembly, wherein the signal pin assembly is used to connect the control board PCBA and the driver board PCBA.

[0007] The signal pin assembly includes a signal pin body and plastic fixing parts and silicone buffer parts symmetrically arranged at both ends of the signal pin body. The plastic fixing parts are used to fix the signal pin body, and the silicone buffer parts serve as buffers. The control board PCBA is provided with a double-row female connector, and the drive board PCBA is provided with a surface mount socket. The upper end of the signal pin body is inserted into the double-row female connector, and the lower end of the signal pin body is inserted into the surface mount socket.

[0008] A further technical solution of this utility model is that the double-row female connector is soldered onto the control board PCBA, and the silicone buffer at the upper end of the signal pin body abuts against the bottom surface of the control board PCBA.

[0009] A further technical solution of this utility model is that the surface mount socket is soldered onto the driver board PCBA, and the silicone buffer at the lower end of the signal pin body abuts against the surface mount socket.

[0010] A further technical solution of this utility model is that the upper cross-section of the double-row female connector is an isosceles trapezoid, and the lower cross-section is a rectangle.

[0011] A further technical solution of this utility model is that the number of signal pins is six, and the double-row female connector is provided with six insertion holes in two rows.

[0012] A further technical solution of this utility model is that the number of signal pins is eight, and the double-row female connector is provided with eight insertion holes in two rows.

[0013] In summary, this utility model, through the above technical solution, includes a control board PCBA, a drive board PCBA, and a signal pin assembly. The signal pin assembly connects the control board PCBA and the drive board PCBA. The signal pin assembly includes a signal pin body and plastic fixing parts and silicone buffer parts symmetrically arranged at both ends of the signal pin body. The plastic fixing parts fix the signal pin body, and the silicone buffer parts provide cushioning. The control board PCBA is provided with a double-row female connector, and the drive board PCBA is provided with a surface mount socket. The upper end of the signal pin body is inserted into the double-row female connector, and the lower end of the signal pin body is inserted into the surface mount socket. This effectively solves the problem of vibration resistance in the signal connection between the fuel cell air compressor controller drive board and the control board. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a block diagram of the internal main circuit of a fuel cell air compressor controller in the prior art;

[0016] Figure 2 This is a schematic diagram of the connection between the control board PCBA and the driver board PCBA in the prior art;

[0017] Figure 3 This is a schematic diagram of the bottom structure of a control board PCBA in the prior art;

[0018] Figure 4 This is a schematic diagram of the structure of a signal pin in the prior art;

[0019] Figure 5 This is a schematic diagram of a signal pin structure from another angle in the existing technology;

[0020] Figure 6 This is a schematic diagram of the overall structure of a preferred embodiment of the signal pin assembly structure of this utility model;

[0021] Figure 7 This is a front view of a preferred embodiment of the signal pin assembly structure of this utility model;

[0022] Figure 8 This is a schematic diagram of the signal pin assembly;

[0023] Figure 9 This is a structural schematic diagram of one embodiment of a double-row female connector;

[0024] Figure 10 This is a schematic diagram of another implementation scheme of the double-row female connector.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] 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.

[0027] Please refer to Figures 6 to 10 This utility model proposes a signal pin assembly structure. A preferred embodiment of the signal pin assembly structure includes a control board PCBA6, a driver board PCBA7, and a signal pin assembly 8, wherein the signal pin assembly 8 is used to connect the control board PCBA6 and the driver board PCBA7.

[0028] The signal pin assembly 8 includes a signal pin body 9 and plastic fixing parts 10 and silicone buffer parts 11 symmetrically arranged at both ends of the signal pin body 9. The plastic fixing parts are used to fix the signal pin body 9 of the signal pin assembly 8, and the silicone buffer parts 11 play a buffering role. The control board PCBA6 is provided with a double row female connector 12, and the drive board PCBA7 is provided with a surface mount socket 13. The upper end of the signal pin body 9 is inserted into the double row female connector 12, and the lower end of the signal pin body 9 is inserted into the surface mount socket 13.

[0029] In this embodiment, the control board PCBA6 and the driver board PCBA7 are assembled using a signal pin assembly 8. Unlike the signal pin assembly 8 in the prior art, the signal pin assembly 8 in this embodiment includes a signal pin body 9 and plastic fixing parts 10 and silicone buffer parts 11 symmetrically arranged at both ends of the signal pin body 9. The plastic fixing parts 10 serve a fixing function, and the silicone buffer parts 11 serve a buffering function. In contrast, the signal pin assembly 8 in the prior art does not have silicone. In addition, this embodiment eliminates the centipede socket in the prior art and replaces it with a double-row female connector 12, which is soldered onto the control board PCBA6, making it more vibration resistant.

[0030] In this embodiment, the dual-row female connector 12 is soldered onto the control board PCBA6, and the silicone buffer 11 at the upper end of the signal pin body 9 abuts against the bottom surface of the control board PCBA6.

[0031] The surface mount socket 13 is soldered onto the driver board PCBA7, and the silicone buffer 11 at the lower end of the signal pin body 9 abuts against the surface mount socket 13.

[0032] In this embodiment, the upper silicone buffer 11 of the signal pin body 9 abuts against the bottom surface of the control board PCBA6, and the lower silicone buffer 11 abuts against the surface mount socket 13. After performing the GB / T24347 / GB28046.3 mechanical load test, there was no signal connection interruption after the experiment, and the vibration test was passed.

[0033] In this embodiment, the upper cross-section of the double-row female connector 12 is an isosceles trapezoid, and the lower cross-section is a rectangle. Of course, in other embodiments, the shape of the double-row wooden connector can also be set to other shapes, and this embodiment does not limit this.

[0034] Furthermore, as one implementation, in this embodiment, the number of signal pin bodies 9 is six, and the double-row female connector 12 is provided with six insertion holes in two rows.

[0035] In another implementation, the signal pin body 9 has eight pins, and the double-row female connector 12 has eight insertion holes in two rows.

[0036] The number of signal pin bodies 9 and the specific structure of the double-row wooden connector can be selected and set according to actual needs.

[0037] This utility model, through the above-described technical solution, includes a control board PCBA, a drive board PCBA, and a signal pin assembly. The signal pin assembly connects the control board PCBA and the drive board PCBA. The signal pin assembly includes a signal pin body and plastic fixing parts and silicone buffer parts symmetrically arranged at both ends of the signal pin body. The plastic fixing parts fix the signal pin body, and the silicone buffer parts provide cushioning. The control board PCBA has a double-row female connector, and the drive board PCBA has a surface mount socket. The upper end of the signal pin body is inserted into the double-row female connector, and the lower end of the signal pin body is inserted into the surface mount socket. This effectively solves the problem of vibration resistance in the signal connection between the fuel cell air compressor controller drive board and the control board.

[0038] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A signal pin assembly structure, characterized in that, It includes a control board PCBA, a driver board PCBA, and a signal pin assembly, wherein the signal pin assembly is used to connect the control board PCBA and the driver board PCBA; The signal pin assembly includes a signal pin body and plastic fixing parts and silicone buffer parts symmetrically arranged at both ends of the signal pin body. The plastic fixing parts are used to fix the signal pin body, and the silicone buffer parts serve as buffers. The control board PCBA is provided with a double-row female connector, and the drive board PCBA is provided with a surface mount socket. The upper end of the signal pin body is inserted into the double-row female connector, and the lower end of the signal pin body is inserted into the surface mount socket.

2. The signal pin assembly structure according to claim 1, characterized in that, The dual-row female connector is soldered onto the control board PCBA, and the silicone buffer at the upper end of the signal pin body abuts against the bottom surface of the control board PCBA.

3. The signal pin assembly structure according to claim 1, characterized in that, The surface mount socket is soldered onto the driver board PCBA, and the silicone buffer at the lower end of the signal pin body abuts against the surface mount socket.

4. The signal pin assembly structure according to claim 1, characterized in that, The upper cross-section of the dual-row female connector is an isosceles trapezoid, and the lower cross-section is rectangular.

5. The signal pin assembly structure according to claim 1, characterized in that, The signal pin body has six pins, and the double-row female connector has six insertion holes in two rows.

6. The signal pin assembly structure according to claim 1, characterized in that, The signal pin body has eight pins, and the double-row female connector has eight insertion holes in two rows.

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