OBD connector pin

Abstract

The utility model relates to the technical field of connectors, in particular to an OBD connector pin. The OBD connector pin is characterized in that the OBD connector pin comprises a variable pin and a connector, a shell is arranged outside the connector, a plurality of jacks are formed in the shell, the variable pin is connected with the jacks, and a buckle is arranged on the variable pin. The utility model provides an OBD (On-Board Diagnostic) connector pin, which solves the problem that plugging and unplugging are facilitated while the stability of the pin and the connector is ensured, and achieves the purposes of flexibility, variability, high stability, high precision and strong applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an OBD connector pin. Background Art

[0002] The OBD interface is the interface for the automobile detection instrument to access the automobile computer ECU. When a part of the vehicle fails, the vehicle computer will generate a fault code, and an external vehicle detection instrument is required to access and detect through the OBD interface and clear it. There are 16 jacks on the automobile OBD interface, defined as 1 to 16, but not every jack will be used. Among them, 1, 3, 8, 9, 11, 12, and 13 are unused interfaces, and 2, 4, 5, 6, 7, 10, 14, 15, and 16 are used interfaces. Specifically, interface 2 is called the bus positive line, that is, Bus positive line, interface 4 is called the chassis ground line, interface 5 is called the signal ground line, interface 6 is called the CAN high line, that is, CAN-H line, interface 7 is called K line, that is, K-Line; interface 10 is called the bus negative line, that is, Bus negative line, interface 14 is called the CAN low line, that is, CAN-L line, interface 15 is the low line, that is, L line, and interface 16 is the normal power supply. One end of the 16 pins of the OBD male connector is used to plug into the OBD female connector, and the other end is used to connect to the circuit board. Since the 16 pins are arranged in two rows, the domestic steering industry is currently developing rapidly, and the requirements for vehicle feel are getting higher and higher. The steering gear needs to be debugged for each vehicle model, and can only enter the market after the debugging is qualified. Different vehicle manufacturers use different OBD pin definitions, and the corresponding connection harness needs to be used when debugging the vehicle. The vehicle feel debugging is a debugging project for the steering system, in order to better the steering feel and improve the applicability of the product. When debugging the steering feel of the vehicle, the two signals CANH and CANL are needed. In order to make the connection firm, the pins of normal connectors are usually designed to be very difficult to remove. For example, the Chinese patent with publication number CN213212446U discloses an OBD pin connection board end straight plug connector and provides the following technical solution. The utility model belongs to the field of connector technology, and in particular, relates to an OBD pin connection board end straight plug connector, comprising a shell and pins embedded in the shell, the pins are arranged in two rows, and the pins are composed of needle heads and needle tails. The needle heads of the upper and lower rows of pins are arranged in parallel and spaced apart to connect with the OBD female head; the shell is provided with a groove, and the upper and lower rows of pins are provided with a groove. The pin tails are installed in the grooves. Specifically, the upper row of pins are short pins, and the lower row of pins are curved pins. The pin tails of the short pins are flat, and the pin tails of the short pins are provided with downward arc-shaped protrusions; the pin tails of the curved pins are provided with upward barbed hook structures, and the barbed hook structures are against the arc surface of the tail arc-shaped protrusions, so that an elastic gap that can tighten the circuit board is formed between the pin tails of the short pins and the pin tails of the curved pins, replacing the traditional welding method of the circuit board and the pins with a direct plug-in type, reducing the difficulty of the production process and improving production efficiency. However, the OBD pin connection board end direct plug-in connector of the above structure is difficult to ensure the stability of the pins and the connector while facilitating plug-in and unplugging. Utility Model Content

[0003] In view of the problem in the background technology that it is difficult to ensure the stability of the pins and the connector while facilitating plugging and unplugging, the utility model proposes an OBD connector pin, which achieves the purposes of flexibility, high stability, high precision and strong applicability.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: an OBD connector pin, characterized in that it includes: a variable pin and a connector, a shell is provided outside the connector, a plurality of jacks are provided inside the shell, the variable pin is connected to the jack, and a buckle is provided on the variable pin.

[0005] The benefit of this design is the variable pin design, which allows for flexible connection to the socket in the connector while ensuring a secure connection through a snap-on design. This design helps adapt to different car models and OBD interfaces, improves compatibility, and makes the plug-in available in a wider range of automotive applications.

[0006] Preferably, a buckle groove is provided at the rear end of the variable pin, and the buckle is provided in the buckle groove.

[0007] The advantage of this design is that a buckle groove is provided at the rear end of the variable pin, which further increases the firmness of the connection. A buckle is provided in the buckle groove, and this structure can provide a stronger connection force, ensuring that it is not easy to loosen during use, and increasing the reliability of the connector.

[0008] Preferably, one end of the buckle is connected to the buckle groove, and the other end is provided with a barbed protrusion.

[0009] The advantage of this design is that the buckle is designed with one end connected to the buckle groove and the other end provided with a barbed protrusion. This structure provides double locking, increases the stability of the connection, avoids accidental disconnection, and increases the service life of the product.

[0010] Preferably, the jack grooves are symmetrically provided at the upper and lower ends of the jack.

[0011] The advantage of this design is that the socket grooves are symmetrically arranged at the upper and lower ends of the socket, which helps to ensure that the plug-in is correctly aligned when inserted and reduce errors. This symmetrical structure simplifies the installation process and improves the user's convenience in operation.

[0012] Preferably, a U-shaped protrusion is arranged around the outside of the buckle groove, and the U-shaped protrusion is adapted to the socket groove.

[0013] The advantage of this design is that the U-shaped protrusion is arranged around the buckle groove to increase the tightness of the connection. The adaptability of the U-shaped protrusion to the jack groove improves the dustproof and waterproof performance, protects the components inside the connector, and increases the stability of the product.

[0014] Preferably, the buckle is an elastic member.

[0015] Preferably, a contact is provided in the socket, an insulator is provided between each of the contact, and an insulator is provided between the contact and the housing.

[0016] The advantage of this design is that there are contacts in the socket, insulators are provided between each contact, and insulators are also provided between the contact and the housing. This multi-layer insulation design effectively prevents short circuits and electrical failures, and improves the safety and reliability of the connector.

[0017] Preferably, the number of the jacks is 16.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The design of variable pins and sockets makes the connection more flexible. Through the establishment of the buckle, the variable pin can be easily connected to the socket, and the design of the buckle groove and barbed protrusion enhances the firmness of the connection. This flexible and variable connection design helps to adapt to different application scenarios and equipment requirements.

[0020] 2. The buckle groove and buckle provide a stable connection, and the barbed protrusion increases the firmness of the connection. This ensures that there will be no signal instability or connection interruption due to looseness during use. The jack grooves are symmetrically arranged at the upper and lower ends of the jack, and the U-shaped protrusion design further improves the adaptability of the connection, allowing the OBD connector pins to better adapt to various working environments and conditions.

[0021] 3. There are contacts in the jack, and insulators are provided between each contact, and there are also insulators between the contact and the housing. This design helps to improve the performance of the electrical connection and effectively prevents short circuits or other electrical problems between the contacts. This is essential for protecting equipment and ensuring stable signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the connector and pins in one embodiment of the utility model;

[0023] Figure 2 This is a partial enlarged view of the rear end of a pin of an embodiment of the utility model;

[0024] Figure 3The figure is a schematic structural diagram of a buckle according to an embodiment of the utility model.

[0025] Illustration: variable pin 1, connector 2, jack 3, jack groove 4, buckle 5, buckle groove 6, barb-shaped protrusion 7, U-shaped protrusion 8. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the accompanying drawings. The proportions of the components are not drawn according to the actual proportions, and the proportions and sizes shown in the accompanying drawings should not limit the substantial technical scheme of the present utility model. These embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific embodiments described.

[0027] See also Figure 1-3 As shown, an OBD connector pin, characterized in that it includes: a variable pin 1 and a connector 2, the connector 2 is provided with a shell on the outside, a plurality of sockets 3 are provided in the shell, the variable pin 1 is connected to the socket 3, and a buckle 5 is provided on the variable pin 1. A contact is provided in the socket 3, an insulator is provided between each of the contact members, and an insulator is provided between the contact member and the shell. The number of the sockets 3 is 16. The socket grooves 4 are symmetrically provided at the upper and lower ends of the socket 3. The buckle 5 is an elastic member. A buckle groove 6 is provided at the rear end of the variable pin 1, and the buckle 5 is provided in the groove 6 of the buckle 5. One end of the buckle 5 is connected to the buckle groove 6, and the other end is provided with a barb-shaped protrusion 7. A U-shaped protrusion 8 is provided around the outer side of the groove 6 of the buckle 5, and the U-shaped protrusion 8 is adapted to the socket groove 4.

[0028] like Figure 1 In one embodiment shown, Figure 1 The schematic diagram of the structure of the connector and pins in one embodiment of the utility model. An OBD connector pin, characterized in that it comprises: a variable pin 1 and a connector 2, the connector 2 is provided with a shell outside, a plurality of jacks 3 are provided in the shell, the variable pin 1 is connected to the jack 3, and a buckle 5 is provided on the variable pin 1. A contact is provided in the jack 3, an insulator is provided between each of the contact pieces, and an insulator is provided between the contact piece and the shell. The number of the jacks 3 is 16.

[0029] The OBD interface is the interface for the automobile detection instrument to access the automobile computer ECU. When a part of the vehicle fails, the vehicle computer will generate a fault code, and an external vehicle detection instrument is required to access and detect through the OBD interface and clear it. There are 16 jacks on the automobile OBD interface, defined as 1 to 16, but not every jack will be used. Among them, 1, 3, 8, 9, 11, 12, and 13 are unused interfaces, and 2, 4, 5, 6, 7, 10, 14, 15, and 16 are used interfaces. Specifically, interface 2 is called the bus positive line, that is, Bus positive line, interface 4 is called the chassis ground line, interface 5 is called the signal ground line, interface 6 is called the CAN high line, that is, CAN-H line, interface 7 is called K line, that is, K-Line; interface 10 is called the bus negative line, that is, Bus negative line, interface 14 is called the CAN low line, that is, CAN-L line, interface 15 is the low line, that is, L line, and interface 16 is the normal power supply. One end of the 16 pins of the OBD male connector is used to plug into the OBD female connector, and the other end is used to connect to the circuit board. There are 16 pins, and each pin represents a different function. Among them, 1, 3, 8, 11, 12, 13 can be customized according to the actual situation of the manufacturer, 2: SAE J1850 bus +, 10: SAE J1850 bus -, 4: body ground, 5: signal ground, 6: CAN-H, 14: CAN-L, 7: K-Line, 15: L-Line, 16: normal power supply. OBD is the abbreviation of On-Board Diagnostics in English, which is translated into "vehicle automatic diagnostic system" in Chinese. This system will monitor whether the car's exhaust exceeds the standard at any time based on the engine's operating status. Once it exceeds the standard, it will immediately issue a warning. When a system fault occurs, the MIL light or the Check Engine warning light comes on, and at the same time the Powertrain Control Module (PCM) stores the fault information in the memory. The fault code can be read from the PCM through a certain procedure. According to the fault code prompt, the repairman can quickly and accurately determine the nature and location of the fault. The OBD device monitors multiple systems and components, including the engine, catalytic converter, particulate filter, oxygen sensor, emission control system, fuel system, EGR, etc. OBD is connected to the electronic control unit (ECU) through various emission-related component information. The ECU has the function of checking and analyzing emission-related faults. When an emission fault occurs, the ECU records the fault information and related codes, and issues a warning through the fault light to inform the driver. The ECU uses a standard data interface to ensure access to and processing of fault information.

[0030] The design of the OBD connector pins of the present application has several significant advantages. First, the introduction of variable pins increases the flexibility of the connection, allowing the plug-in to adapt to different car interfaces and requirements. The buckle design makes the connection more secure, ensuring safety and stability. In addition, contacts are provided in the jack, which helps to achieve a reliable electrical connection. Insulators are provided between the contacts to effectively prevent short circuits and electrical failures, thereby improving safety. At the same time, the insulators between the contacts and the housing further ensure the stability and reliability of the electrical components. Overall, the OBD connector pins of this design strike a balance between flexibility, safety, and reliability, making it an ideal automotive electronic connection solution.

[0031] like Figure 2 In one embodiment shown, Figure 2 This is a partial enlarged view of the pin rear end of an embodiment of the utility model. An OBD connector pin, characterized in that it includes: a variable pin 1 and a connector 2, the connector 2 is provided with a shell on the outside, a plurality of sockets 3 are provided in the shell, the variable pin 1 is connected to the socket 3, and a buckle 5 is provided on the variable pin 1. A contact is provided in the socket 3, an insulator is provided between each of the contact pieces, and an insulator is provided between the contact piece and the shell. The number of the sockets 3 is 16. The socket grooves 4 are symmetrically provided at the upper and lower ends of the socket 3. The buckle 5 is an elastic member.

[0032] The contact is the core part of the automotive connector to complete the electrical connection function. The contact pair is composed of a positive contact and a negative contact, and the electrical connection is completed by the insertion of the negative and positive contacts. The positive contact is a rigid part, and its shape is cylindrical (round pin) or square column (square pin or flat plug). The positive contact is made of brass or phosphor bronze. The negative contact, that is, the socket, is the key part of the contact pair. It relies on the elastic structure to deform elastically when it is inserted with the pin to generate elastic force to form a close contact with the positive contact to complete the connection. There are many types of socket structures, such as cylindrical (split groove, shrinkage, tuning fork type, cantilever beam type longitudinal slot), folding type (longitudinal slot, 9-shaped, box-shaped square socket and hyperbolic wire spring socket), etc. The shell is the outer cover of the automotive connector. It provides mechanical protection for the internal insulating mounting plate and pins, and provides alignment when the plug and socket are inserted, thereby fixing the connector to the device. The insulator is also often called the automotive connector base or mounting plate. Its function is to arrange the contacts in the required position and spacing, and to ensure the insulation performance between the contacts and between the contacts and the housing. It has good insulation resistance, voltage resistance and easy processing.

[0033] like Figure 3 In one embodiment shown, Figure 3The schematic diagram of the structure of a buckle of an embodiment of the utility model. An OBD connector pin, characterized in that it comprises: a variable pin 1 and a connector 2, the connector 2 is provided with a shell on the outside, a plurality of sockets 3 are provided in the shell, the variable pin 1 is connected to the socket 3, and a buckle 5 is provided on the variable pin 1. A contact is provided in the socket 3, an insulator is provided between each of the contact members, and an insulator is provided between the contact member and the shell. The number of the sockets 3 is 16. The socket grooves 4 are symmetrically provided at the upper and lower ends of the socket 3. The buckle 5 is an elastic member. A buckle groove 6 is provided at the rear end of the variable pin 1, and the buckle 5 is provided in the groove 6 of the buckle 5. One end of the buckle 5 is connected to the buckle groove 6, and the other end is provided with a barb-shaped protrusion 7. A U-shaped protrusion 8 is provided around the outer side of the groove 6 of the buckle 5, and the U-shaped protrusion 8 is adapted to the socket groove 4.

[0034] The ingenious design of the device of the utility model incorporates multiple key features, providing excellent performance and flexibility for automotive electronic connections. First, the introduction of variable pins allows the interface requirements of different models to be adapted, thereby improving the versatility of the product. Each jack is provided with a contact, which helps to achieve a reliable electrical connection. At the same time, the contacts are separated by an insulator, which effectively prevents short circuits and electrical failures and improves safety. The symmetrical jack grooves at the upper and lower ends simplify the installation process, ensure that the plug-in is correctly aligned when inserted, reduce errors, and improve user convenience. The design of the rear end of the buckle further enhances the firmness of the connection. A buckle is provided in the buckle groove, one end of which is connected to the buckle groove, and the other end is provided with a barbed protrusion, forming a double locking mechanism, ensuring that the connection is not easy to loosen, and increasing the reliability of the connector. A U-shaped protrusion is arranged around the outer periphery of the buckle groove, which is adapted to the jack groove, improves the tightness of the connection, effectively prevents dust and moisture from entering, and thus protects the electrical components inside the connector. In summary, the design advantages of this OBD connector pin are its multi-level security, stability and flexibility. This not only meets the basic requirements of automotive electronic connections, but also pursues a higher level of performance and reliability in design, making it an excellent automotive electronic connection solution.

[0035] At present, the domestic steering industry is developing rapidly, and the requirements for vehicle feel are getting higher and higher. The steering gear needs to be debugged for the feel of the whole vehicle for each model. Only after the debugging is qualified can it enter the market. Different vehicle manufacturers use different OBD pin definitions, and the corresponding connection harness needs to be used when debugging the whole vehicle. The vehicle feel debugging is a debugging project for the steering system, in order to better the steering feel and improve the applicability of the product. Using the utility model device, the pins of the connection harness connector can be freely adjusted according to the OBD pin definitions of different vehicle manufacturers to match, and only one connection harness is needed when debugging outside. The buckle can ensure a firm connection with the vehicle OBD while also facilitating the plug-in and unplugging of the pins. When using it, you only need to remove the pin from the connector and insert it into the pin port corresponding to the vehicle OBD signal.

[0036] In summary, the design of the variable pin and the socket of the utility model device makes the connection method more flexible. Through the establishment of the buckle, the variable pin can be easily connected to the socket, and the design of the buckle groove and the barb-shaped protrusion enhances the firmness of the connection. This flexible and variable connection design helps to adapt to different application scenarios and equipment requirements. The setting of the buckle groove and the buckle provides a stable connection, and the barb-shaped protrusion increases the firmness of the connection. This ensures that the signal is not unstable or the connection is interrupted due to looseness during use. The jack grooves are symmetrically provided at the upper and lower ends of the jack, and the design of the U-shaped protrusion further improves the adaptability of the connection, so that the OBD connector pins can better adapt to various working environments and conditions. Contacts are provided in the jack, and insulators are provided between each contact, and there are also insulators between the contact and the housing. This design helps to improve the performance of the electrical connection and effectively prevents short circuits or other electrical problems between the contacts. This is crucial for protecting equipment and ensuring stable signal transmission.

[0037] The present invention is not limited to the above-mentioned embodiments. Regardless of any changes in shape or material composition, any structural design provided by the present invention is a variation of the present invention and should be considered within the protection scope of the present invention.

Claims

1. An OBD connector pin, characterized in that: include: A variable pin (1) and a connector (2), wherein a shell is provided outside the connector (2), a plurality of jacks (3) are provided inside the shell, the variable pin (1) is connected to the jacks (3), and a buckle (5) is provided on the variable pin (1).

2. An OBD connector pin according to claim 1, characterized in that: The rear end of the variable pin (1) is provided with a buckle groove (6), and the buckle (5) is arranged in the buckle groove (6).

3. An OBD connector pin according to claim 2, characterized in that: One end of the buckle (5) is connected to the buckle groove (6), and the other end is provided with a barbed protrusion (7).

4. An OBD connector pin according to any one of claims 1 to 3, characterized in that: The insertion hole (3) is symmetrically provided with insertion hole grooves (4) at the upper and lower ends.

5. An OBD connector pin according to claim 4, characterized in that: A U-shaped protrusion (8) is arranged around the outer periphery of the buckle (5) groove (6), and the U-shaped protrusion (8) is adapted to the insertion hole groove (4).

6. An OBD connector pin according to any one of claims 1 to 3, characterized in that: The buckle (5) is an elastic member.

7. An OBD connector pin according to claim 1, characterized in that: A contact piece is arranged in the socket (3), an insulator is arranged between each of the contact pieces, and an insulator is arranged between the contact piece and the housing.

8. An OBD connector pin according to claim 1 or 7, characterized in that: The number of the jacks (3) is 16.

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