OBD connector

Abstract

The utility model provides an OBD connector comprising a housing, one end of which is provided with a plugging cavity used for plugging and assembling with a female terminal; the circuit board is arranged at one end, far away from the plugging cavity, of the shell; the contact pin is arranged on the shell, one end of the contact pin is accommodated in the insertion cavity, the other end of the contact pin is in contact with and electrically connected with the circuit board, and the end, accommodated in the insertion cavity, of the contact pin is provided with an ejector pin part capable of sliding in the length direction of the contact pin; and the guide pin is arranged on the circuit board and is electrically connected with the contact pin. According to the OBD connector, the ejector pin part capable of sliding along the length direction of the pin is arranged on the pin, so that the ejector pin part can provide buffering through sliding when the OBD connector is inserted into a female terminal on an automobile to generate hard contact, the pin is prevented from being damaged due to hard contact, and the service life is prolonged; moreover, the insertion between the pin and the female terminal can be tighter, and the connection stability between the OBD connector and the female terminal on the automobile is improved, thereby enabling the signal transmission to be more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric connector, especially relates to a OBD connector. BACKGROUND

[0002] The automobile is the most popular four-wheel vehicle in the world at present, and its use rate maintains a very high level, OBD (On Board Diagnostics, vehicle-mounted automatic diagnostic system) is the essential vehicle-mounted automatic diagnostic system on the automobile, and the system can monitor whether the automobile is over standard in tail gas at any time from the running condition of the engine, and will issue a warning as soon as it is over standard. When the system fails, the fault lamp or the engine check warning lamp is bright, and the power assembly control module stores the fault information into the memory, and the fault code can be read out from the PCM through certain program.

[0003] In the related art, the connection of the automobile and the vehicle-mounted diagnostic system needs to be connected through the OBD connector, and the male terminal of the OBD connector and the copper needle of the female terminal on the automobile are fixedly arranged, so that when the male terminal of the OBD connector is inserted into the female terminal on the automobile, if there is a knock or misalignment, the male terminal copper needle of the OBD connector and the female terminal copper needle are likely to be in hard contact, resulting in damage. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide an OBD connector, which aims to solve the problem of damage of the male terminal lead pin and the female terminal of the OBD connector in the related art.

[0005] To solve the above technical problems, the utility model provides an OBD connector, which comprises:

[0006] A shell is provided with a plug-in cavity for plug-in assembly with a female terminal at one end;

[0007] A circuit board is arranged at one end of the shell away from the plug-in cavity;

[0008] A plug-in pin is arranged on the shell, one end of the plug-in pin is accommodated in the plug-in cavity, the other end is in contact with and electrically connected to the circuit board, and the end of the plug-in pin accommodated in the plug-in cavity is provided with a stylus part which can slide along the length direction; and

[0009] A lead pin is arranged on the circuit board and electrically connected to the plug-in pin;

[0010] Among them, the plug-in pin and the lead pin are both provided with a plurality of plug-in pins, a plurality of lead pins are distributed at intervals, and a plurality of plug-in pins and a plurality of lead pins are electrically connected one by one.

[0011] Optionally, the plug-in pin further comprises:

[0012] a needle cylinder fixed to the shell and accommodated in the plug-in cavity, one end of the needle cylinder in contact with and electrically connected to the circuit board, the one end of the needle cylinder accommodated in the plug-in cavity being provided with a receiving cavity, and the ejector portion being slidingly assembled in the receiving cavity along the length direction of the needle cylinder; and

[0013] a restoring member accommodated in the receiving cavity and connected to the ejector portion and the needle cylinder respectively, the restoring member being configured to provide a restoring force for driving the ejector portion to slide away from the needle cylinder.

[0014] Optionally, the bottom wall of the plug-in cavity is provided with a plurality of first through holes, the first through holes being in communication with the plug-in cavity, and the board surface of the circuit board is provided with a plurality of second through holes, the positions of the plurality of first through holes being arranged in one-to-one correspondence with the positions of the plurality of second through holes.

[0015] The plurality of plug pins are assembled in the plurality of first through holes in one-to-one correspondence, and one end of the plug pin extends into the plug-in cavity and the other end penetrates through the second through hole.

[0016] Optionally, the peripheral wall of the first through hole is provided with a mounting groove, and the peripheral side surface of the plug pin is provided with a fixing portion, the fixing portion being embedded in the mounting groove.

[0017] Optionally, the OBD connector further comprises a fixing seat fixed to the one end of the circuit board away from the shell, and the side of the shell close to the fixing seat is provided with a clearance groove.

[0018] The circuit board is provided with a third through hole, one end of the lead pin is fixed to the fixing seat, and the other end penetrates through the third through hole and extends into the clearance groove.

[0019] Optionally, the board surface of the circuit board is further provided with a mounting hole, and the shell is provided with a mounting portion, the mounting portion being embedded in the mounting hole.

[0020] Optionally, the plurality of plug pins are arranged in two rows on the shell, the plurality of lead pins are arranged in two rows on the circuit board, and the two rows of lead pins are located between the two rows of plug pins.

[0021] Optionally, the OBD connector further comprises a fixing plate fixed to the shell and accommodated in the plug-in cavity, the fixing plate being located between the two rows of plug pins.

[0022] Optionally, the side surface of the plug-in cavity is provided with a fourth through hole, the fourth through hole being in communication with the plug-in cavity, and the fourth through hole being arranged in correspondence with at least one plug pin.

[0023] Optionally, the side wall of the plug cavity is further provided with a notch, and the OBD connector further comprises a spring sheet fixed to the shell, the spring sheet is arranged opposite to the notch, and the spring sheet is provided with a buckling part.

[0024] The OBD connector has the beneficial effects that: the pin part is provided with the ejector part which can slide along the length direction of the pin part, so that when the OBD connector and the female terminal on the automobile are hard contacted, the ejector part can provide buffering by sliding, the pin part is prevented from being damaged due to the hard contact, and the service life is improved; in addition, the pin part and the female terminal can be more tightly plugged, the connection stability between the OBD connector and the female terminal on the automobile is improved, and the signal transmission is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the related art, the drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is a structural schematic view of one direction of the OBD connector provided by the embodiment of the present application;

[0027] Figure 2 is a structural schematic view of another direction of the OBD connector provided by the embodiment of the present application;

[0028] Figure 3 is a structural schematic view of the pin part provided by the embodiment of the present application;

[0029] Figure 4 is an assembly schematic view of the pin part, the circuit board and the lead pin provided by the embodiment of the present application;

[0030] Figure 5 is a structural schematic view of the shell provided by the embodiment of the present application.

[0031] In the drawings, the reference signs represent: 1, the shell; 11, the plug cavity; 12, the first through hole; 13, the accommodation slot; 14, the fourth through hole; 15, the notch; 16, the mounting part; 2, the circuit board; 21, the second through hole; 22, the mounting hole; 3, the pin part; 31, the ejector part; 32, the needle cylinder; 33, the fixed part; 4, the lead pin; 5, the fixed seat; 6, the fixed plate; 7, the spring sheet; 71, the buckling part. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application, and all other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments in the present application belong to the scope of protection of the present application.

[0033] In the description of the present application, 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" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple", "several" is two or more, unless otherwise explicitly specified.

[0035] Embodiment:

[0036] Please refer to Figures 1 to 5 The embodiment of the present application provides an OBD connector, which comprises a shell 1, a circuit board 2, a pin 3 and a lead pin 4. One end of the shell 1 is provided with a plug-in cavity 11 for plug-in assembly with a female terminal, and the circuit board 2 is arranged at the end of the shell 1 away from the plug-in cavity 11. The pin 3 is arranged on the shell 1, one end of the pin 3 is accommodated in the plug-in cavity 11, the other end is in contact with and electrically connected to the circuit board 2, and the end of the pin 3 accommodated in the plug-in cavity 11 is provided with a stylus part 31 which can slide along the length direction. The lead pin 4 is arranged on the circuit board 2 and electrically connected to the pin 3; wherein the pin 3 and the lead pin 4 are provided with a plurality of pins 3, the plurality of pins 3 are distributed at intervals, the plurality of lead pins 4 are distributed at intervals, and the plurality of pins 3 and the plurality of lead pins 4 are electrically connected one by one.

[0037] The top needle part 31 is arranged on the pin 3 and can slide along the length direction of the pin 3. When the OBD connector is hard contacted with the female terminal on the automobile, the top needle part 31 can provide buffering by sliding, avoiding damage of the pin 3 due to hard contact, and improving the service life. Moreover, the pin 3 and the female terminal can be more closely inserted, the connection stability between the OBD connector and the female terminal on the automobile is improved, and the signal transmission is more stable.

[0038] It should be noted that the OBD connector is a male terminal, the pin 3 is electrically connected with the circuit board 2, and the circuit board 2 is electrically connected with the lead pin 4, so as to realize the electrical connection between the pin 3 and the lead pin 4. During the insertion of the OBD connector and the female terminal on the automobile, the OBD connector is inserted along the length direction of the pin 3, and the top needle part 31 extends into the needle tube of the female terminal.

[0039] Please refer to Figure 1 , Figure 2 and Figure 3 , the pin 3 further comprises a needle cylinder 32 and a restoring member. One end of the needle cylinder 32 is fixed to the shell 1 and accommodated in the plug cavity 11, and the other end is in contact with and electrically connected with the circuit board 2. The end of the needle cylinder 32 accommodated in the plug cavity 11 is provided with a containing cavity, and the top needle part 31 is assembled in the containing cavity along the length direction of the needle cylinder 32, so that the top needle part 31 will slide towards the needle cylinder 32 after being pushed. The restoring member is accommodated in the containing cavity and connected to the top needle and the needle cylinder 32 respectively. The restoring member is used to provide a restoring force to drive the top needle part 31 to slide away from the needle cylinder 32, so that the top needle part 31 can be reset under the action of the restoring force provided by the restoring member. The restoring member can be arranged between the bottom wall of the containing cavity and the bottom of the top needle part 31. According to actual needs, the restoring member can be a spring, and the pin 3 composed of the needle cylinder 32, the top needle part 31 and the restoring member can be a spring needle.

[0040] It should be noted that the depth of the female terminal needle tube inner cavity can be set to be less than the length of the top needle part 31, so that after insertion, the restoring force provided by the restoring member can make the top needle part 31 tightly contact with the female terminal needle tube, thereby improving the connection tightness between the pin 3 and the female terminal needle tube.

[0041] Please refer to Figure 2 , Figure 4 and Figure 5The bottom wall of the plug cavity 11 is provided with a plurality of first through holes 12, the plurality of first through holes 12 are distributed at intervals, and the first through holes 12 are communicated with the plug cavity 11. The surface of the circuit board 2 is provided with a plurality of second through holes 21, the plurality of second through holes 21 are distributed at intervals, and the positions of the plurality of first through holes 12 and the positions of the plurality of second through holes 21 are one-to-one opposite. A plurality of pins 3 are one-to-one correspondingly assembled in the plurality of first through holes 12, so as to fix the pins 3 on the shell 1; one end of the pin 3 extends into the plug cavity 11, so as to ensure that the top needle part 31 of the pin 3 can be inserted into the needle tube of the female terminal when the female terminal is inserted into the plug cavity 11; the other end of the pin 3 passes through the second through hole 21, so that the pin 3 can contact the circuit board 2 to realize electrical conduction.

[0042] According to actual needs, the pin 3 and the lead pin 4 can be respectively provided with sixteen, and the corresponding first through hole 12 and the second through hole 21 are also provided with sixteen.

[0043] Please refer to Figure 3 In some embodiments, the peripheral wall of the first through hole 12 is provided with a mounting groove, the peripheral side surface of the pin 3 is provided with a fixing part 33, and the fixing part 33 is embedded in the mounting groove, so as to fix the pin 3 on the shell 1. The mounting groove can be an annular groove, and the fixing part 33 is annular.

[0044] It should be understood that the fixing part 33 cooperates with the mounting groove, which can realize the mutual fixation of the pin 3 and the shell 1, and can also realize the sealed contact between the pin 3 and the shell 1, so as to improve the sealing performance of the OBD connector.

[0045] Please refer to Figure 2 , Figure 4 and Figure 5 The OBD connector further comprises a fixing seat 5, the fixing seat 5 is fixed to one end of the circuit board 2 away from the shell 1, and the side of the shell 1 close to the fixing seat 5 is provided with a let-in groove 13; the circuit board 2 is provided with a third through hole, one end of the lead pin 4 is fixed to the fixing seat 5, the other end passes through the third through hole and extends into the let-in groove 13, so that the lead pin 4 contacts the circuit board 2 and is electrically conducted. The let-in groove 13 can provide sufficient space on the shell 1, so as to avoid that the shell 1 prevents the installation and fixation of the lead pin 4; one end of the lead pin 4 fixed to the fixing seat 5 is protrudingly arranged relative to the surface of the fixing seat 5, so as to be conducive to being connected with the cable.

[0046] According to actual needs, the third through hole can be provided with sixteen, and the sixteen lead pins 4 are one-to-one correspondingly installed in the sixteen third through holes.

[0047] Please refer to Figure 3 , Figure 2 and Figure 4The board surface of the circuit board 2 is further provided with a mounting hole 22, and the shell 1 is provided with a mounting portion 16 embedded in the mounting hole 22 to fix the circuit board 2 on the shell 1. The mounting hole 22 can be provided with a plurality of mounting holes 22 arranged at the end of the circuit board 2, and the mounting portion 16 can be provided with a plurality of mounting portions 16 arranged at the end of the shell 1, and the plurality of mounting portions 16 are arranged one by one in the plurality of mounting holes 22.

[0048] According to actual needs, the mounting portion 16 can be a protrusion arranged on the shell 1, and the mounting portion 16 can be provided with four mounting portions 16 arranged at two ends of the shell 1 respectively. The mounting hole 22 can be provided with four mounting holes 22 arranged at two ends of the circuit board 2 respectively, and the four mounting portions 16 are arranged one by one in the four mounting holes 22.

[0049] Please refer to Figure 5 The plurality of pins 3 are arranged in two rows on the shell 1, and the plurality of leads 4 are arranged in two rows on the circuit board 2. The two rows of leads 4 are located between the two rows of pins 3, so that the distribution of the pins 3 and the leads 4 on the OBD connector is more reasonable, which is conducive to reducing the size of the OBD connector, and also conducive to the installation and fixation of the pins 3 and the leads 4.

[0050] Please refer to Figure 2 The OBD connector further comprises a fixing plate 6 fixed to the shell 1 and accommodated in the plug-in cavity 11. The fixing plate 6 is located between the two rows of pins 3. When the female terminal is inserted into the plug-in cavity 11, the fixing plate 6 can prevent the female terminal from shaking, thereby improving the connection stability of the female terminal and the OBD connector.

[0051] According to actual needs, the fixing plate 6 can be provided with two fixing plates 6 arranged in a row at intervals.

[0052] Please refer to Figure 4 and Figure 5 The side surface of the plug-in cavity 11 is provided with a fourth through hole 14 in communication with the plug-in cavity 11, and the fourth through hole 14 is arranged opposite to at least one pin 3. When the female terminal is inserted into the plug-in cavity 11, the contact state between the pin 3 and the needle tube of the female terminal can be observed through the fourth through hole 14, so that the pin 3 is more easily inserted into the needle tube, and the difficulty of the plug-in of the OBD connector and the female terminal is reduced.

[0053] According to actual needs, the fourth through hole 14 can be provided with four fourth through holes 14, and the opposite two side walls of the plug-in cavity 11 are respectively provided with two fourth through holes 14, and the two fourth through holes 14 of the same plug-in cavity 11 are arranged at intervals, and each fourth through hole 14 is arranged opposite to the top pin portion 31 of one pin 3.

[0054] Please refer to Figure 4 and Figure 1 Figure 1 Figure 5 Figure 1 Figure 5The side wall of the plug cavity 11 is further provided with a notch 15, and the OBD connector further comprises an elastic sheet 7 fixed to the shell 1, the elastic sheet 7 is arranged opposite to the notch 15, and the elastic sheet 7 is provided with a buckling part 71 which can be buckled into a buckling groove on the female terminal, so as to further improve the connection stability of the OBD connector and the female terminal.

[0055] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An OBD connector, characterized in that, include: The housing has a plug-in cavity at one end for mating with the female terminal. A circuit board is disposed at the end of the housing away from the insertion cavity; A pin is disposed on the housing, one end of the pin being received within the insertion cavity, and the other end contacting and electrically connecting to the circuit board. The end of the pin received within the insertion cavity is provided with a slidable ejector pin portion along its length. A lead pin is disposed on the circuit board and electrically connected to the pin; The plurality of pins and leads are provided, with the plurality of pins and leads distributed at intervals, and the plurality of pins and leads being electrically connected in a one-to-one correspondence.

2. The OBD connector according to claim 1, characterized in that, The pin also includes: A syringe, one end fixed to the housing and housed within the insertion cavity, the other end in contact with and electrically connected to the circuit board, wherein the end of the syringe housed within the insertion cavity has a receiving cavity, and the ejector pin is slidably fitted into the receiving cavity along the length direction of the syringe; and... A return element, housed within the receiving cavity and connected to both the ejector pin and the syringe barrel, provides a restoring force to drive the ejector pin to slide away from the syringe barrel.

3. The OBD connector according to claim 1, characterized in that, The bottom wall of the insertion cavity is provided with a plurality of first through holes, which communicate with the insertion cavity. The surface of the circuit board is provided with a plurality of second through holes, and the positions of the plurality of first through holes and the positions of the plurality of second through holes are arranged one to one. The plurality of pins are fitted one-to-one into the plurality of first through holes, with one end of each pin extending into the insertion cavity and the other end passing through the second through hole.

4. The OBD connector according to claim 3, characterized in that, The peripheral wall of the first through hole is provided with a mounting groove, and the peripheral surface of the pin is provided with a fixing part, which is embedded in the mounting groove.

5. The OBD connector according to claim 1, characterized in that, The OBD connector also includes a mounting base, which is fixed to the end of the circuit board away from the housing, and the housing has a clearance groove on the side near the mounting base; The circuit board is provided with a third through hole. One end of the pin is fixed to the fixing base, and the other end passes through the third through hole and extends into the relief groove.

6. The OBD connector according to claim 1, characterized in that, The circuit board surface is also provided with mounting holes, and the housing is provided with a mounting part, which is embedded in the mounting holes.

7. The OBD connector according to claim 1, characterized in that, The plurality of said pins are arranged in two rows on the housing, and the plurality of said leads are arranged in two rows on the circuit board, with the two rows of leads located between the two rows of pins.

8. The OBD connector according to claim 7, characterized in that, The OBD connector also includes a fixing plate, which is fixed to the housing and housed within the insertion cavity, and is located between the two rows of pins.

9. The OBD connector according to claim 1, characterized in that, The side of the insertion cavity is provided with a fourth through hole, which communicates with the insertion cavity and is positioned opposite to at least one of the pins.

10. The OBD connector according to claim 1, characterized in that, The side wall of the insertion cavity is also provided with a notch, and the OBD connector also includes a spring piece fixed to the housing. The spring piece is arranged opposite to the notch, and the spring piece is provided with a fastening part.

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