An OBD male connector

Abstract

The utility model provides a kind of OBD male connector, including the shell formed with mounting cavity, first circuit board, second circuit board, terminal and radio frequency assembly;First circuit board is fixed in shell one end;Limiting plate is connected in mounting cavity inner wall, and the side of limiting plate away from first circuit board is enclosed with mounting cavity and is formed with the plug-in cavity for cooperating with OBD female connector, limiting hole is equipped on limiting plate and is adapted with terminal;Terminal one end is conducted with first circuit board, and the other end passes through limiting hole and extends to plug-in cavity;Second circuit board is fixed on the side of first circuit board towards mounting cavity, and assembly cavity is equipped on first circuit board, and assembly cavity is used to be connected with radio frequency assembly plug-in cooperation, and modulation circuit is integrated on second circuit board, and modulation circuit is used to convert digital signal into radio frequency signal to be output for radio frequency assembly.OBD male connector not only can be connected with female connector plug-in cooperation, but also can be realized with other equipment between wireless communication transmission by radio frequency assembly.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connection device technology, and in particular relates to an OBD male connector. Background Technology

[0002] OBD (On-Board Diagnostics) connectors are standard interfaces for connecting diagnostic equipment in automobiles, enabling functions such as vehicle fault diagnosis, data monitoring, and performance tuning. OBD connectors typically consist of female and male connectors. The female connector, usually attached to the vehicle, has multiple pins; the male connector, used to connect to the diagnostic equipment, has multiple pins corresponding to the pins on the female connector. The mating connection between the male and female connectors allows signal transmission between the vehicle and the diagnostic equipment. In related technologies, the OBD male connector can only transmit signals through the OBD female connector, resulting in a relatively simple signal transmission method and limited functionality and efficiency for the diagnostic equipment connector. Utility Model Content

[0003] The technical objective of this utility model is to provide an OBD male connector, which aims to solve the above-mentioned problems in related technologies.

[0004] To solve the above-mentioned technical problems, this utility model is implemented as follows: an OBD male connector includes: a housing with a mounting cavity, a first circuit board, a second circuit board, terminals, and an RF component; the first circuit board is fixed to one end of the housing; a limiting plate is connected to the inner wall of the mounting cavity, and the side of the limiting plate away from the first circuit board surrounds the mounting cavity to form a mating cavity for cooperating with an OBD female connector; the limiting plate is provided with a limiting hole adapted to the terminal; one end of the terminal is conductive to the first circuit board, and the other end passes through the limiting hole and extends into the mating cavity; the second circuit board is fixed to the side of the first circuit board facing the mounting cavity; the first circuit board has an assembly cavity for plugging and unplugging with the RF component; the second circuit board integrates a modulation circuit for converting digital signals into RF signals for output by the RF component.

[0005] Furthermore, the radio frequency component includes a radio frequency line and an antenna connected to the end of the radio frequency line.

[0006] Furthermore, the male connector includes multiple terminals and is provided with multiple flexible circuit boards that connect the terminals to the first circuit board for conduction.

[0007] Furthermore, the male connector includes a first flexible board and a second flexible board fixed to the side of the first circuit board away from the second circuit board; the first circuit board has clearance holes for each terminal to pass through, the first flexible board is connected to some of the terminals among the multiple terminals, and the second flexible board is connected to the remaining terminals among the multiple terminals.

[0008] Furthermore, the number of terminals is 16, and the 16 terminals are symmetrically distributed in two rows. One row of terminals is connected to the first flexible circuit board, and the other row of terminals is connected to the second flexible circuit board.

[0009] Furthermore, a clearance opening is provided on the limiting plate, and the second circuit board includes a first segment connected to the first circuit board and a second segment connected to the first segment at the end away from the first circuit board. The second segment passes through the clearance opening and extends into the insertion cavity. The second segment is also used as an insertion guide for mating with the female connector.

[0010] Furthermore, the projected size of the first segment along the insertion direction is larger than the size of the clearance opening, and the edge of the first segment away from the first circuit board abuts against the limiting plate.

[0011] Furthermore, the housing includes a main body and an enclosing wall connected to the end of the main body. The first circuit board is fixed to the main body, and the enclosing wall and the limiting plate enclose to form an insertion cavity. An avoidance notch is provided on the enclosing wall, and an elastic sheet is also connected to the main body. The elastic sheet is located inside the avoidance notch.

[0012] Furthermore, the main body, enclosing wall, and limiting plate are integrally formed.

[0013] Compared with the prior art, the OBD male connector of this utility model has the following advantages: the OBD male connector integrates radio frequency components. The radio frequency components enable the diagnostic device to directly communicate wirelessly with other devices through the connector, thereby enabling functions such as remote diagnosis, data reading, and status monitoring, effectively improving the data transmission efficiency and work efficiency between the diagnostic device and other devices. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the OBD male connector in an embodiment of this utility model;

[0015] Figure 2 This is a partial structural schematic diagram of the OBD male connector in an embodiment of this utility model;

[0016] Figure 3 This is an exploded view of the OBD male connector in an embodiment of this utility model.

[0017] In the accompanying drawings, the reference numerals denote: 1. Housing; 11. Limiting plate; 111. Limiting hole; 112. Clearance opening; 12. Main body; 13. Enclosing wall; 131. Clearance notch; 14. Mounting cavity; 141. Insertion cavity; 2. First circuit board; 21. Assembly cavity; 3. Second circuit board; 31. First segment; 32. Second segment; 4. Terminal; 5. Radio frequency assembly; 51. Radio frequency line; 52. Antenna; 6. First flexible circuit board; 7. Second flexible circuit board; 8. Elastic sheet. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the protection scope of this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Example:

[0022] like Figure 1-3 As shown, in this embodiment, the OBD male connector includes: a housing 1 with a mounting cavity 14, a first circuit board 2, a second circuit board 3, a terminal 4, and an RF component 5; the first circuit board 2 is fixed to one end of the housing 1; a limiting plate 11 is connected to the inner wall of the mounting cavity 14, and the side of the limiting plate 11 away from the first circuit board 2 surrounds the mounting cavity 14 to form a plug-in cavity 141 for cooperating with the OBD female connector, and the limiting plate 11 is provided with a limiting hole 111 adapted to the terminal 4; one end of the terminal 4 is conductive to the first circuit board 2, and the other end passes through the limiting hole 111 and extends into the plug-in cavity 141; the second circuit board 3 is fixed to the side of the first circuit board 2 facing the mounting cavity 14, and the first circuit board 2 is provided with an assembly cavity 21 for plugging and unplugging the RF component 5; the second circuit board 3 integrates a modulation circuit, which is used to convert digital signals into RF signals for output by the RF component 5.

[0023] Specifically, the OBD male connector can be used in diagnostic equipment. By plugging and mating with the corresponding OBD female connector, signal transmission between the diagnostic equipment and the vehicle is achieved. In this embodiment, an RF component 5 is integrated into the OBD male connector. The RF component 5 enables the diagnostic equipment to directly communicate wirelessly with other devices (such as mobile terminals, vehicle terminals, etc.) through the connector, thereby enabling remote diagnostics, data reading, status monitoring, and other functions. This effectively improves the data transmission efficiency and work efficiency between the diagnostic equipment and other devices. Furthermore, the RF component 5 is plugged into the first circuit board 2. When wireless transmission is needed, it is simply inserted into the assembly cavity 21 of the first circuit board 2; when not in use, the RF component 5 is simply removed, making operation simple and convenient.

[0024] In some specific embodiments, the second circuit board 3 also integrates an amplifier circuit, which amplifies the radio frequency signal generated by the modulation circuit to a sufficient power level before outputting it to the radio frequency component 5 to ensure reliable wireless transmission. In some specific embodiments, the radio frequency component 5 can be used to implement the radio frequency signal transmission and reception function. The second circuit board 3 also integrates a demodulation circuit. After receiving electromagnetic waves, the radio frequency component 5 can convert them into radio frequency signals. Then, the demodulation circuit on the second circuit board 3 can demodulate the radio frequency signals, extract the original digital signals, and transmit them to the diagnostic device. In this embodiment, the radio frequency component 5 includes a radio frequency line 51 and an antenna 52 connected to the end of the radio frequency line 51. The radio frequency line 51 can be an RF radio frequency line used to realize the transmission of radio frequency signals between the second circuit board 3 and the antenna 52. The antenna 52 can be used to convert the radio frequency signals into electromagnetic waves and radiate them into the air when acting as a transmitter, or to receive electromagnetic waves and convert them into radio frequency signals when acting as a receiver.

[0025] In this embodiment, the male connector includes multiple terminals 4, and the male connector is provided with multiple flexible printed circuit boards (FPCs) that connect the terminals 4 to the first circuit board 2 for conduction. The terminals 4 serve as the actual transmission medium for electrical signals, connecting the internal circuitry of the OBD connector to the vehicle's OBD system. Each terminal 4 corresponds to a specific signal line defined in the OBD standard. This embodiment uses multiple FPCs to achieve connections between different terminals 4 and the first circuit board 2, allowing for the connection of the corresponding FPC as needed, eliminating the need to connect all terminals 4, simplifying the connection process, and improving connector compatibility. For example, in this embodiment, the male connector includes a first FPC 6 and a second FPC 7 fixed to the side of the first circuit board 2 opposite to the second circuit board 3; the first circuit board 2 has clearance holes for each terminal 4 to pass through; the first FPC 6 connects to a portion of the multiple terminals 4 for conduction, and the second FPC 7 connects to the remaining portion of the multiple terminals 4 for conduction. In other words, the terminals 4 are divided into two groups, each led out through two FPCs, ensuring convenient connection of the terminals 4 without increasing the material and assembly costs of the FPCs. Preferably, the number of terminals 4 is 16, and the 16 terminals 4 are symmetrically distributed in two rows. One row of terminals 4 is connected to the first flexible board 6 and the other row of terminals 4 is connected to the second flexible board 7. The 16 independent metal pins (i.e., terminals 4) can be inserted into the socket of the vehicle's OBD interface, so that the vehicle's OBD system signal can be successfully transmitted to the first circuit board 2 and the second circuit board 3 inside the OBD male connector.

[0026] In this embodiment, the limiting plate 11 has a clearance opening 112. The second circuit board 3 includes a first segment 31 connected to the first circuit board 2 and a second segment 32 connected to the first segment 31 at the end away from the first circuit board 2. The second segment 32 passes through the clearance opening 112 and extends into the insertion cavity 141. The second segment 32 is also used as an insertion guide for mating with the female connector, replacing the tongue of the traditional housing to achieve guidance and positioning. That is, the second circuit board 3 is not only used to carry the circuit, but also to achieve positioning and guidance. When the OBD male connector and the OBD female connector are mated, the existence of the insertion guide can play a good positioning and guiding function, improving the convenience of the mating operation. In addition, this assembly of the second circuit board 3 is also conducive to saving assembly space and reducing the size of the connector.

[0027] In this embodiment, the projected size of the first segment 31 along the insertion direction is larger than the size of the clearance opening 112, and the edge of the first segment 31 away from the first circuit board 2 abuts against the limiting plate 11. That is, the first segment 31 of the second circuit board 3 abuts between the first circuit board 2 and the limiting plate 11, thereby stably limiting the position of the entire second circuit board 3 in the insertion direction; while the clearance opening 112 can also limit the periphery of the second segment 32, thereby ensuring that the position of the entire second circuit board 3 in the circumferential direction is stably limited. In addition, the first circuit board 2 and the second circuit board 3 can also be welded and fixed together. Such multi-layer limiting protection measures can ensure the assembly stability of the second circuit board 3.

[0028] In this embodiment, the housing 1 includes a main body 12 and an enclosing wall 13 connected to the end of the main body. A first circuit board 2 is fixed to the main body 12. The enclosing wall 13 and the limiting plate 11 enclose and form a plug-in cavity 141. An avoidance notch 131 is provided on the enclosing wall 13. An elastic piece 8 is also connected to the main body 12, and the elastic piece 8 is located inside the avoidance notch 131. The first circuit board 2 can be fixed to the top of the main body 12 with screws, which provides good fixing effect. The elastic piece 8 can be fixed to the main body 12 by a snap-fit ​​connection. The setting of the elastic piece 8 can improve the stability of the plug-in mating between the OBD male connector and the OBD female connector. That is, after the OBD male connector and the OBD female connector are plugged in, the elastic piece 8 acts between the OBD male connector and the OBD female connector, thereby effectively preventing the connector from loosening. In this embodiment, the main body 12, the enclosing wall 13, and the limiting plate 11 are integrally formed. The housing 1 is obtained by integral injection molding, which helps to reduce production and processing costs.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An OBD male connector characterized by, The device includes a housing with a mounting cavity, a first circuit board, a second circuit board, terminals, and an RF component. The first circuit board is fixed to one end of the housing. A limiting plate is connected to the inner wall of the mounting cavity. The side of the limiting plate away from the first circuit board and the mounting cavity enclose a insertion cavity for mating with an OBD female connector. The limiting plate has a limiting hole adapted to the terminal. One end of the terminal is conductive to the first circuit board, and the other end passes through the limiting hole and extends into the insertion cavity. The second circuit board is fixed to the side of the first circuit board facing the mounting cavity. The first circuit board has an assembly cavity for plugging and unplugging the RF component. The second circuit board integrates a modulation circuit for converting digital signals into RF signals for output by the RF component.

2. The OBD female connector of claim 1, wherein, The radio frequency component includes a radio frequency line and an antenna connected to the end of the radio frequency line.

3. The OBD female connector of claim 1, wherein, The male connector includes a plurality of terminals, and the male connector is provided with a plurality of flexible circuit boards that connect the terminals to the first circuit board for conduction.

4. The OBD male connector according to claim 3, characterized in that, The male connector includes a first flexible board and a second flexible board fixed to the side of the first circuit board away from the second circuit board; the first circuit board has clearance holes for each of the terminals to pass through, the first flexible board is connected to a portion of the terminals, and the second flexible board is connected to the remaining terminals.

5. The OBD female connector of claim 4, wherein, The number of terminals is 16, and the 16 terminals are symmetrically distributed in two rows. One row of terminals is connected to the first flexible circuit board, and the other row of terminals is connected to the second flexible circuit board.

6. The OBD female connector of claim 1, wherein, The limiting plate has a clearance opening. The second circuit board includes a first segment connected to the first circuit board and a second segment connected to the first segment at the end away from the first circuit board. The second segment passes through the clearance opening and extends into the insertion cavity. The second segment is also used as an insertion guide for mating with the female connector.

7. The OBD male connector of claim 6, wherein, The projected size of the first segment along the insertion direction is larger than the size of the clearance opening, and the edge of the first segment away from the first circuit board abuts against the limiting plate.

8. The OBD female connector of claim 1, wherein, The housing includes a main body and a surrounding wall connected to the end of the main body. The first circuit board is fixed to the main body. The surrounding wall and the limiting plate surround to form the insertion cavity. An avoidance notch is provided on the surrounding wall. An elastic sheet is also connected to the main body. The elastic sheet is located in the avoidance notch.

9. The OBD male connector of claim 8, wherein, The main body, the enclosing wall, and the limiting plate are integrally formed.

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