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CN-113764950-B - OBD extension connecting wire

CN113764950BCN 113764950 BCN113764950 BCN 113764950BCN-113764950-B

Abstract

The invention discloses an OBD extension connecting wire which comprises a joint assembly, a switching circuit assembly, a circuit assembly and an extension assembly, wherein the joint assembly comprises a male joint main body, one side of the male joint main body is fixedly connected with a trapezoid socket, and a plurality of metal columns are embedded and connected in the male joint main body. The invention has the beneficial effects that the male connector main body in the connector assembly is connected with the device main circuit, the male connector main body is internally provided with a plurality of metal columns, the signal and the main power supply are connected through the metal columns, the main power supply is connected with the main power supply circuit through the contact metal wire, the main power supply circuit is connected with a first normally open contact and a second normally open contact, the first normally open contact and the second normally open contact are connected with a coil, the main power supply supplies power, the first normally open contact and the second normally open contact are adsorbed by the coil, the power utilization circuit is connected, when the main power supply is deficient, the coil works, the first normally closed contact and the second normally closed contact are closed, and the auxiliary power supply is connected with the power utilization circuit.

Inventors

  • QIU XINTAO
  • SUN SITONG

Assignees

  • 青岛市产品质量检验研究院(青岛市产品质量安全风险监测中心)

Dates

Publication Date
20260508
Application Date
20210725

Claims (6)

  1. 1. An OBD expansion connecting wire comprises a joint assembly (1), a switching circuit assembly (2), a circuit assembly (3) and an expansion assembly (4), and is characterized in that the joint assembly (1) comprises a male joint main body (101), one side of the male joint main body (101) is fixedly connected with a trapezoid socket (102), a plurality of metal columns (103) are embedded and connected in the male joint main body (101), the metal columns (103) are arranged in the trapezoid socket (102), symmetrical metal contacts (105) are movably clamped in the male joint main body (101), two contact metal wires (106) are connected to the male joint main body (101), and one ends of the two contact metal wires (106) are connected with one ends of the two metal columns (103); The switching circuit assembly (2) comprises a connecting main body (201) and a conversion circuit (202) embedded in the connecting main body (201), wherein a circuit in the conversion circuit (202) is correspondingly connected with the two metal contacts (105) and the two contact metal wires (106); the line assembly (3) comprises a first bus (301) and a second bus (302), wherein the first bus (301) and the second bus (302) are provided with a signal transmission line and a power consumption line; The expansion assembly (4) comprises a first female connector (401) and a second female connector (402), one end of the first female connector (401) is connected with a plug-in block (403), a plug-in hole (404) is formed in the plug-in block (403), one end of the first bus (301) is connected with the first female connector (401), and one end of the second bus (302) is connected with the second female connector (402); The switching circuit (202) comprises a coil (203), a first normally-open contact (204), a second normally-open contact (205), a first normally-closed contact (207) and a second normally-closed contact (208), wherein the input end and the output end of the coil (203) are respectively connected with a first normally-open contact (204) and a second normally-open contact (205) connecting line, the first normally-open contact (204) and the second normally-open contact (205) connecting line are connected into a main power supply line, the first normally-closed contact (207) and the second normally-closed contact (208) connecting line are connected into a secondary power supply line, a first fusing resistor (206) is connected onto the first normally-open contact (204) connecting line, and a second fusing resistor (209) is connected onto the first normally-closed contact (207) connecting line.
  2. 2. The OBD expansion connection line according to claim 1, wherein one end of the male connector main body (101) is fixedly connected with a middle plate (104), and the middle plate (104) is arranged in the middle of the plurality of metal columns (103).
  3. 3. The OBD expansion connecting wire according to claim 1, wherein symmetrical buckles (107) are fixedly connected to two sides of the trapezoid socket (102), and one end of each buckle (107) is arranged in an arc shape.
  4. 4. The OBD expansion joint according to claim 1, wherein the male joint main body (101) is connected with a symmetrical rubber pad (108), and a plurality of anti-skid grooves are arranged on the rubber pad (108).
  5. 5. An OBD expansion connection according to claim 1, characterized in that said second female connector (402) is arranged identically to the first female connector (401), said second female connector (402) is connected to the same line as the first female connector (401), said first female connector (401) The number of the two female connectors (402) and the number of the inner plug holes (404) of the first female connector (401) are the same as the number of the metal columns (103).
  6. 6. The OBD expansion connecting line according to claim 1, wherein the second female connector (402) and the first female connector (401) are connected with anti-slip rubber, and the second female connector (402) is matched with the first female connector (401) and the device input end interface.

Description

OBD extension connecting wire Technical Field The invention belongs to the technical field of OBD connecting wires, and particularly relates to an OBD expansion connecting wire. Background A total of 16 receptacles are available on an automotive OBD connector, but not every receptacle is used, so many are because of the international standard involved, we define a wide head on 1-16, respectively, OBD real-time monitoring of engine, catalytic converter, particulate trap, oxygen sensor, emission control system, fuel system, EGR, etc. systems and components. And then is connected to an electric control unit through different emission related component information, which can detect and analyze emission related faults, record fault information and related codes when emission faults occur, and send out warnings through fault lamps to inform a driver. And through a standard data interface, the access and the processing of fault information are ensured. The current OBD connects the power supply of most simple signal transmission and power, and the current market OBD expansion connecting wire only expands the connection quantity, and ordinary OBD connecting wire can't provide the automatic switch-over of main power supply and stand-by power supply, under main power supply electric quantity starvation, can't be for equipment power supply, reduces duration. Disclosure of Invention The invention aims to provide an OBD extension connecting wire so as to solve the problems in the background art. In order to achieve the above purpose, the invention provides the technical scheme that the OBD expansion connecting wire comprises a joint component, a switching circuit component, a circuit component and an expansion component, wherein the joint component comprises a male joint main body, one side of the male joint main body is fixedly connected with a trapezoid socket, a plurality of metal columns are embedded and connected in the male joint main body, the metal columns are arranged in the trapezoid socket, symmetrical metal contacts are movably clamped in the male joint main body, two contact metal wires are connected on the male joint main body, and one ends of the two contact metal wires are connected with one ends of the two metal columns; the switching circuit assembly comprises a connecting main body and a conversion circuit embedded in the connecting main body, wherein a circuit in the conversion circuit is correspondingly connected with two metal contacts and two contact metal wires; The circuit assembly comprises a first bus and a second bus, and the first bus and the second bus are respectively provided with a signal transmission circuit and a power consumption circuit; The expansion assembly comprises a first female connector and a second female connector, one end of the first female connector is connected with a plug-in block, a plug-in hole is formed in the plug-in block, one end of the first bus is connected with the first female connector, and one end of the second bus is connected with the second female connector. Preferably, one end of the male connector main body is fixedly connected with a middle plate, and the middle plate is arranged in the middle of the plurality of metal columns. Preferably, symmetrical buckles are fixedly connected to two sides of the trapezoid socket respectively, and one end of each buckle is arc-shaped. Preferably, the male connector main body is connected with symmetrical rubber pads, and a plurality of anti-skid grooves are arranged on the rubber pads. Preferably, the switching circuit comprises a coil, a first normally open contact, a second normally open contact, a first normally closed contact and a second normally closed contact, wherein the input end and the output end of the coil are respectively connected with the first normally open contact and the second normally open contact, the first normally open contact and the second normally open contact are connected with a main power supply circuit, the first normally closed contact and the second normally closed contact are connected with an auxiliary power supply circuit, the first normally open contact is connected with a first fusing resistor, and the first normally closed contact is connected with a second fusing resistor. Preferably, the second female connector is arranged in the same way as the first female connector, the second female connector is connected with the same circuit as the first female connector, and the number of the second female connector and the number of the first female connector inner plug holes are the same as the number of the metal columns. Preferably, the second female connector and the first female connector are both connected with anti-slip rubber, and the second female connector is matched with the first female connector and the equipment input end interface. Compared with the prior art, the invention has the beneficial effects that: (1) The male connector main body in the connector assembly is c