Vehicle-mounted OBD terminal

Abstract

The utility model provides a vehicle-mounted OBD terminal, which comprises a shell, a circuit module arranged in the shell and a plug connected with the shell, the circuit module comprises a circuit board, a plurality of first connecting terminals are arranged on the circuit board, a plurality of second connecting terminals are arranged in the plug, the plurality of second connecting terminals are respectively in one-to-one correspondence with the plurality of first connecting terminals, and the first connecting terminals are connected with the plug. Each first connecting terminal is electrically connected with the corresponding second connecting terminal; one of the first connecting terminal and the second connecting terminal is a solid pin, and the other one is a hollow pin with a plug hole; and the solid pins can be inserted into the plugging holes, so that the first connecting terminal and the second connecting terminal are fixed through plugging. The vehicle-mounted OBD terminal not only is convenient to assemble, but also facilitates the miniaturization design of the vehicle-mounted OBD terminal.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted terminal equipment, in particular to a vehicle-mounted OBD terminal. Background Art

[0002] OBD (On Board Diagnostics) is a detection system extended for automobile fault diagnosis. The on-board OBD terminal is an OBD terminal installed inside the car. It can perform location query, electronic fence, speeding alarm, trajectory playback, vehicle fault diagnosis, OBD data detection and other services for the car. It can be used after the SIM card is installed.

[0003] The existing plug-in vehicle-mounted OBD terminal generally includes a housing, a circuit module disposed in the housing, and a plug connected to the housing. The circuit module is electrically connected to the plug, and the plug is used to be plugged into a corresponding interface in the car to realize power supply and charging of the vehicle-mounted OBD terminal and data exchange between the car and the vehicle-mounted OBD terminal. The circuit module includes a circuit board, on which various signal transmission components are disposed, and the pins in the plug are electrically connected to the circuit board.

[0004] During assembly, the prior art generally uses wires (such as copper wires) to electrically connect the pins in the plug to the circuit board (the two ends of the wires are respectively welded and fixed to the pins and the circuit board). However, this wire connection method is not convenient for welding, which affects the assembly efficiency. Moreover, since the wires are made of soft materials, the arrangement of components in the vehicle OBD terminal will be messy when the wires are routed, which is not conducive to the arrangement of components and the miniaturization design of the vehicle OBD terminal. Utility Model Content

[0005] The utility model aims to provide a vehicle-mounted OBD terminal, which is not only convenient to assemble but also conducive to the miniaturized design of the vehicle-mounted OBD terminal.

[0006] The utility model provides a vehicle-mounted OBD terminal, comprising a housing, a circuit module arranged in the housing, and a plug connected to the housing, wherein the circuit module comprises a circuit board, a plurality of first connection terminals are arranged on the circuit board, a plurality of second connection terminals are arranged in the plug, a plurality of the second connection terminals respectively correspond to a plurality of the first connection terminals one by one, and each of the first connection terminals is electrically connected to the corresponding second connection terminal;

[0007] One of the first connection terminal and the second connection terminal is a solid pin, and the other is a hollow pin with a plug-in hole; the solid pin can be inserted into the plug-in hole of the hollow pin, so that the first connection terminal and the second connection terminal are fixed by plugging.

[0008] In one achievable manner, the first connection terminal is a hollow pin, the second connection terminal is a solid pin, and the entire second connection terminal is a solid structure.

[0009] In one feasible manner, the second connecting terminal is a hollow pin, and the first connecting terminal is a solid pin; the second connecting terminal includes a first part and a second part that are connected to each other, the second part is located on a side of the first part away from the first connecting terminal, the plug hole is arranged in the first part, and the second part is a solid structure.

[0010] In one feasible manner, the plug includes a hollow base with a partition inside the base; the first end of the second connecting terminal is located on a side of the partition close to the circuit board, and the first end of the second connecting terminal extends out of the base, and the second end of the second connecting terminal passes through the partition and is located on a side of the partition away from the circuit board; the first end of the second connecting terminal is fixed to the first connecting terminal by plugging.

[0011] In one achievable manner, the cross-section of the solid pin is a rectangular structure, and the cross-section of the plug hole is a rectangular structure; or, the cross-section of the solid pin is a circular structure, and the cross-section of the plug hole is a circular structure.

[0012] In one feasible manner, the number of the circuit boards is two, the two circuit boards are arranged along their thickness direction, the two circuit boards are electrically connected, the plurality of first connection terminals are respectively arranged on the two circuit boards, and the plurality of first connection terminals are all located on the same side of the two circuit boards; the plurality of second connection terminals are arranged in two rows, and the two rows of second connection terminals respectively correspond to the first connection terminals on the two circuit boards.

[0013] In one achievable manner, the numbers of the first connecting terminals on the two circuit boards are different, and the numbers of the second connecting terminals in the two rows are different.

[0014] In one achievable manner, in the two circuit boards, the first connection terminals on each circuit board are arranged on a surface of the circuit board on a side away from the other circuit board.

[0015] In one achievable manner, the plurality of first connection terminals are all disposed at edge positions of the circuit board, and an extension direction of the first connection terminals is perpendicular to a thickness direction of the circuit board.

[0016] In one achievable manner, a soldering pad is provided on the surface of the circuit board, and the first connecting terminal is fixed to the soldering pad by welding.

[0017] The vehicle-mounted OBD terminal provided by the utility model is provided with a plurality of first connection terminals on the circuit board and a plurality of second connection terminals in the plug, wherein one of the first connection terminal and the second connection terminal is a solid pin and the other is a hollow pin with a plug-in hole; during assembly, the solid pin only needs to be inserted into the plug-in hole of the hollow pin, so that the first connection terminal and the second connection terminal are fixed by plugging, thereby realizing the electrical connection between the plug and the circuit board. This structure is not only convenient for assembly, but also because the first connection terminal and the second connection terminal are made of hard materials, the circuit module can be supported by the first connection terminal and the second connection terminal, and other supporting components can be omitted, thereby saving layout space, which is conducive to the miniaturization design of the vehicle-mounted OBD terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the vehicle-mounted OBD terminal in an embodiment of the utility model.

[0019] Figure 2 for Figure 1 Schematic diagram of the explosion structure.

[0020] Figure 3 for Figure 2 Side view of.

[0021] Figure 4 It is a schematic diagram of the assembly structure of the circuit module and the plug in the embodiment of the utility model.

[0022] Figure 5 for Figure 4 Schematic cross-section of .

[0023] Figure 6 It is a schematic diagram of a partial explosion structure of a circuit module in an embodiment of the utility model.

[0024] Figure 7 Schematic diagram of control logic of the control module in the embodiment of the utility model.

[0025] Figure 8 It is a schematic cross-sectional view of the assembly of the circuit module and the plug in another embodiment of the utility model. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] The terms "first", "second", "third", "fourth" and the like (if any) in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0028] The directional words such as up, down, left, right, front, back, top, bottom, etc. (if any) involved in the specification and claims of the utility model are defined by the positions of the structures in the drawings and the positions of the structures relative to each other, and are only for the clarity and convenience of expressing the technical solution. It should be understood that the use of directional words should not limit the scope of protection claimed by the utility model.

[0029] like Figures 1 to 5 As shown, the vehicle-mounted OBD terminal provided by the embodiment of the utility model includes a housing 1, a circuit module 2 arranged in the housing 1, and a plug 3 connected to the housing 1, and the plug 3 is located on one side of the housing 1. The circuit module 2 includes a circuit board 21 and a plurality of electronic components 23 arranged on the circuit board 21, and a plurality of first connection terminals 22 are arranged on the circuit board 21, and the first connection terminals 22 are electrically connected to the circuit board 21; a plurality of second connection terminals 33 are arranged in the plug 3, and the plurality of second connection terminals 33 correspond to the plurality of first connection terminals 22 one by one, respectively, and each first connection terminal 22 is electrically connected to the corresponding second connection terminal 33;

[0030] One of the first connection terminal 22 and the second connection terminal 33 is a solid pin, and the other is a hollow pin with a plug hole 4 (it should be noted that the hollow pin can be a hollow structure in its entirety, that is, the plug hole 4 passes through the hollow pin; the hollow pin can also be a partially hollow structure, that is, the plug hole 4 does not completely pass through the hollow pin). The solid pin can be inserted into the plug hole 4 of the hollow pin, so that the first connection terminal 22 and the second connection terminal 33 are fixed by plugging.

[0031] The vehicle-mounted OBD terminal provided by the utility model is provided with a plurality of first connection terminals 22 on the circuit board 21, and a plurality of second connection terminals 33 in the plug 3, wherein one of the first connection terminal 22 and the second connection terminal 33 is a solid pin, and the other is a hollow pin with a plug-in hole 4; during assembly, it is only necessary to insert the solid pin into the plug-in hole 4 of the hollow pin, so that the first connection terminal 22 and the second connection terminal 33 are fixed by plugging, thereby realizing the electrical connection between the plug 3 and the circuit board 21. This structure is not only convenient for assembly, but also because the first connecting terminal 22 and the second connecting terminal 33 are made of hard materials (the first connecting terminal 22 and the second connecting terminal 33 are generally made of metal materials such as copper, iron, and aluminum), the circuit module 2 can be supported by the first connecting terminal 22 and the second connecting terminal 33 (that is, the circuit module 2 is fixedly connected to the plug 3 through the first connecting terminal 22 and the second connecting terminal 33, so that the circuit module 2 can be fixed in the shell 1; at the same time, the end of the circuit board 21 away from the plug 3 can also abut against the inner wall of the shell 1, thereby further preventing the circuit module 2 from shaking), other supporting components can be omitted, thereby saving layout space, which is conducive to the miniaturized design of the vehicle-mounted OBD terminal.

[0032] like Figures 1 to 5 As shown, as an embodiment, the first connection terminal 22 is a hollow pin, and the entire first connection terminal 22 is a hollow structure (that is, the plug hole 4 passes through the first connection terminal 22); of course, in other embodiments, the first connection terminal 22 can also be partially hollow (for example, the end of the first connection terminal 22 close to the second connection terminal 33 is a hollow structure). The second connection terminal 33 is a solid pin, and the entire second connection terminal 33 is a solid structure, that is, both ends of the second connection terminal 33 are solid structures, thereby improving the electrical connection stability between the second connection terminal 33 and the corresponding interface in the car (not shown). The second connection terminal 33 is inserted into the plug hole 4 of the first connection terminal 22.

[0033] like Figure 8 As shown, as another embodiment, the second connection terminal 33 is a hollow pin, and the first connection terminal 22 is a solid pin. The second connection terminal 33 includes a first part 331 and a second part 332 connected to each other, the second part 332 is located on the side of the first part 331 away from the first connection terminal 22, the plug hole 4 is arranged in the first part 331 (that is, the first part 331 is a hollow structure), and the second part 332 is a solid structure (that is, part of the second connection terminal 33 is a hollow structure and part is a solid structure). Such a setting can improve the electrical connection stability between the second connection terminal 33 and the corresponding interface in the car (because the end of the second connection terminal 33 away from the first connection terminal 22 needs to be plugged into the interface in the car, if the end of the second connection terminal 33 away from the first connection terminal 22 is a hollow structure, poor contact may occur during plugging (poor contact occurs after the end of the second connection terminal 33 is flattened), and the resistance will be increased at the same time). The first connection terminal 22 is inserted into the insertion hole 4 of the second connection terminal 33, and the end of the first connection terminal 22 abuts against the inner wall of the second portion 332. Of course, in other embodiments, the second connection terminal 33 may also be a hollow structure as a whole.

[0034] like Figures 1 to 5 As shown in the figure, as an embodiment, the cross section of the solid pin is a rectangular structure, the cross section of the plug hole 4 is a rectangular structure (i.e., a rectangular hole), and the size of the plug hole 4 matches the outer size of the solid pin. Of course, in other embodiments, the cross section of the solid pin may be a circular structure, and the cross section of the plug hole 4 may be a circular structure (i.e., a circular hole).

[0035] like Figures 2 to 5 As shown, as an embodiment, multiple first connecting terminals 22 are arranged at the edge position of the same side of the circuit board 21, and the extension direction (i.e., the length direction) of the first connecting terminal 22 and the extension direction of the second connecting terminal 33 are both perpendicular to the thickness direction T of the circuit board 21.

[0036] like Figure 6 As shown, as an implementation mode, a solder pad 211 is provided on the surface of the circuit board 21 , and the first connection terminal 22 is fixed to the solder pad 211 by welding, thereby achieving fixation and electrical connection between the first connection terminal 22 and the circuit board 21 .

[0037] like Figures 1 to 5 As shown, as an embodiment, the plug 3 includes a hollow base 31, and a partition 32 is provided in the base 31; the second connection terminal 33 is at least partially arranged in the base 31, the first end of the second connection terminal 33 is located on the side of the partition 32 close to the circuit board 21, and the first end of the second connection terminal 33 extends out of the base 31 (so that the second connection terminal 33 can be smoothly plugged into the first connection terminal 22), and the second end of the second connection terminal 33 passes through the partition 32 and is located on the side of the partition 32 away from the circuit board 21; the first end of the second connection terminal 33 is fixed to the first connection terminal 22 by plugging.

[0038] Specifically, the partition 32 can not only play a sealing role to prevent external dust, water vapor, etc. from entering the housing 1 through the base 31, but also play a role in fixing the second connection terminal 33, that is, the second connection terminal 33 is fixed on the partition 32. The partition 32 and the base 31 are an integrated structure, and the base 31 is a plastic part.

[0039] like Figures 1 to 5 As shown, as an embodiment, an opening 10 is provided on one side of the shell 1, and a flange 311 protruding outward is provided on the outer wall of the base 31 close to one end of the circuit module 2, and the flange 311 is sealed and connected to the opening 10 of the shell 1 (specifically, it can be connected by snap-fitting, screwing, etc.).

[0040] like Figure 4 and Figure 5 As shown, as an embodiment, when the first connecting terminal 22 and the second connecting terminal 33 are plugged in and fixed, the circuit board 21 abuts against the side wall of the base 31 (specifically, the circuit board 21 abuts against the flange 311), thereby limiting the plugging depth of the first connecting terminal 22 and the second connecting terminal 33.

[0041] like Figures 2 to 5As shown, as an embodiment, there are two circuit boards 21, the two circuit boards 21 are arranged at intervals along the thickness direction T thereof, and the two circuit boards 21 are electrically connected, a plurality of first connection terminals 22 are respectively arranged on the two circuit boards 21, and the plurality of first connection terminals 22 are all located on the same side of the two circuit boards 21. A plurality of second connection terminals 33 are arranged in two rows, and the two rows of second connection terminals 33 correspond to the first connection terminals 22 on the two circuit boards 21, respectively, that is, the two rows of second connection terminals 33 can be plugged and fixed with the first connection terminals 22 on the two circuit boards 21, respectively.

[0042] like Figures 2 to 5 As shown, as an embodiment, in the two circuit boards 21, the first connection terminals 22 on each circuit board 21 are arranged on the surface of the side away from the other circuit board 21, that is, the first connection terminals 22 on the upper circuit board 21 are arranged on its upper surface, and the first connection terminals 22 on the lower circuit board 21 are arranged on its lower surface. Such arrangement can help reduce the distance between the two circuit boards 21, and thus help the miniaturization design of the vehicle-mounted OBD terminal (since the distance between the two rows of second connection terminals 33 is fixed, the distance between the first connection terminals 22 on the two circuit boards 21 is also fixed; if the first connection terminals 22 on the upper circuit board 21 are arranged on its lower surface, or the first connection terminals 22 on the lower circuit board 21 are arranged on its upper surface, in order to ensure that there is sufficient distance between the first connection terminals 22 on the two circuit boards 21, the distance between the two circuit boards 21 will be increased at this time).

[0043] like Figure 2 and Figure 5 As shown, as an embodiment, the number of first connection terminals 22 on the two circuit boards 21 is different, and the number of second connection terminals 33 in the two rows is different (that is, the number of second connection terminals 33 in one row is different from the number of second connection terminals 33 in the other row). This arrangement can play a foolproof role during assembly (avoiding the plug 3 from being inserted into the two circuit boards 21 in reverse). The two rows of second connection terminals 33 are separated by a horizontal plate 312, and the horizontal plate 312 is connected to the partition plate 32.

[0044] like Figures 2 to 5 As shown, as an embodiment, among the multiple electronic components 23, a portion of the electronic components 23 are arranged on the upper surface of the circuit board 21 located above, another portion of the electronic components 23 are arranged on the lower surface of the circuit board 21 located below, and another portion of the electronic components 23 are arranged between the two circuit boards 21.

[0045] like Figure 2 and Figure 7As shown, as an embodiment, the plurality of electronic components 23 include a communication module 231, a positioning module 232 and a control module 233. The communication module 231, the positioning module 232 and the control module 233 are all arranged on the circuit board 21 and are all electrically connected to the circuit board 21. The communication module 231 and the positioning module 232 are both electrically connected to the control module 233. Among them, the communication module 231 plays a role of wireless communication, the positioning module 232 is used to receive positioning information, and transmit the positioning information to the cloud platform (i.e., cloud server) wirelessly through the communication module 231, and the mobile terminal device (such as the user's mobile phone, computer, etc.) interacts with the cloud platform to obtain the positioning information (the specific functions and working principles of the communication module 231 and the positioning module 232 can refer to the prior art and will not be repeated here).

[0046] As an implementation manner, a battery (not shown) is further provided in the housing 1 , and the battery is electrically connected to the circuit board 21 .

[0047] Specifically, the specific working process of the vehicle-mounted OBD terminal is as follows: when in use, the plug 3 is inserted into the corresponding interface in the car. After the car is started, the circuit board 21 is electrically connected to the car through the second connection terminal 33 in the plug 3, thereby powering the vehicle-mounted OBD terminal and charging the battery; when the car is turned off, the vehicle-mounted OBD terminal loses the power supply of the car, and the battery powers the vehicle-mounted OBD terminal at this time, so that the vehicle-mounted OBD terminal can always perform the positioning function. It should be noted that the vehicle-mounted OBD terminal in this embodiment only has a positioning function, but does not have a vehicle information detection function (that is, when the vehicle-mounted OBD terminal is plugged into the car, the car only powers the vehicle-mounted OBD terminal, and does not perform data interaction); of course, in other embodiments, a corresponding module can also be set in the vehicle-mounted OBD terminal to realize the vehicle information detection function (such as overspeed alarm, track playback, vehicle fault diagnosis, etc.).

[0048] The vehicle-mounted OBD terminal provided by the embodiment of the utility model is provided with a plurality of first connection terminals 22 on the circuit board 21, and a plurality of second connection terminals 33 in the plug 3, wherein one of the first connection terminal 22 and the second connection terminal 33 is a solid pin, and the other is a hollow pin with a plug hole 4; during assembly, the solid pin only needs to be inserted into the plug hole 4 of the hollow pin, so that the first connection terminal 22 and the second connection terminal 33 are fixed by plugging, thereby realizing the electrical connection between the plug 3 and the circuit board 21. This structure is not only convenient for assembly, but also because the first connection terminal 22 and the second connection terminal 33 are hard materials, the circuit module 2 can be supported by the first connection terminal 22 and the second connection terminal 33, and other supporting components can be omitted, thereby saving layout space, which is conducive to the miniaturization design of the vehicle-mounted OBD terminal.

[0049] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A vehicle-mounted OBD terminal, characterized in that: The invention comprises a housing (1), a circuit module (2) arranged in the housing (1), and a plug (3) connected to the housing (1), wherein the circuit module (2) comprises a circuit board (21), a plurality of first connection terminals (22) are arranged on the circuit board (21), a plurality of second connection terminals (33) are arranged in the plug (3), the plurality of second connection terminals (33) respectively correspond to the plurality of first connection terminals (22), and each of the first connection terminals (22) is electrically connected to the corresponding second connection terminal (33); One of the first connecting terminal (22) and the second connecting terminal (33) is a solid pin, and the other is a hollow pin provided with a plug-in hole (4); the solid pin can be inserted into the plug-in hole (4) of the hollow pin, so that the first connecting terminal (22) and the second connecting terminal (33) are fixed by plugging.

2. The vehicle-mounted OBD terminal according to claim 1, characterized in that: The first connecting terminal (22) is a hollow pin, the second connecting terminal (33) is a solid pin, and the entire second connecting terminal (33) is a solid structure.

3. The vehicle-mounted OBD terminal according to claim 1, characterized in that: The second connecting terminal (33) is a hollow pin, and the first connecting terminal (22) is a solid pin; the second connecting terminal (33) comprises a first part (331) and a second part (332) which are connected to each other, the second part (332) is located on a side of the first part (331) away from the first connecting terminal (22), the plug hole (4) is arranged in the first part (331), and the second part (332) is a solid structure.

4. The vehicle-mounted OBD terminal according to claim 1, characterized in that: The plug (3) comprises a hollow base (31), wherein a partition (32) is provided inside the base (31); the first end of the second connecting terminal (33) is located on a side of the partition (32) close to the circuit board (21), and the first end of the second connecting terminal (33) extends out of the base (31), and the second end of the second connecting terminal (33) passes through the partition (32) and is located on a side of the partition (32) away from the circuit board (21); the first end of the second connecting terminal (33) is fixed to the first connecting terminal (22) by plugging.

5. The vehicle-mounted OBD terminal according to claim 1, characterized in that: The cross-section of the solid pin is a rectangular structure, and the cross-section of the plug hole (4) is a rectangular structure; or, the cross-section of the solid pin is a circular structure, and the cross-section of the plug hole (4) is a circular structure.

6. The vehicle-mounted OBD terminal according to claim 1, characterized in that: The number of the circuit boards (21) is two, the two circuit boards (21) are arranged along the thickness direction (T) thereof, the two circuit boards (21) are electrically connected, a plurality of the first connection terminals (22) are respectively arranged on the two circuit boards (21), and the plurality of the first connection terminals (22) are all located on the same side of the two circuit boards (21); the plurality of the second connection terminals (33) are arranged in two rows, and the two rows of the second connection terminals (33) respectively correspond to the first connection terminals (22) on the two circuit boards (21).

7. The vehicle-mounted OBD terminal according to claim 6, characterized in that: The numbers of the first connecting terminals (22) on the two circuit boards (21) are different, and the numbers of the second connecting terminals (33) in the two rows are different.

8. The vehicle-mounted OBD terminal according to claim 6, characterized in that: In the two circuit boards (21), the first connection terminal (22) on each circuit board (21) is arranged on a surface of the circuit board (21) which is away from the other circuit board (21).

9. The vehicle-mounted OBD terminal according to claim 1, characterized in that: The plurality of first connection terminals (22) are all arranged at the edge of the circuit board (21), and the extension direction of the first connection terminals (22) is perpendicular to the thickness direction (T) of the circuit board (21).

10. The vehicle-mounted OBD terminal according to any one of claims 1 to 9, characterized in that: A soldering pad (211) is provided on the surface of the circuit board (21), and the first connecting terminal (22) is fixed to the soldering pad (211) by welding.

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