JP2010096742A - Checking device of wiring system carried in vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inhibit wearing occurrence of a connector terminal of a service check coupler. <P>SOLUTION: In a vehicle where a functional check of a wiring system carried in vehicle is performed by an inspection device, a functional check device for the wiring system is constituted as follows. One end of a wiring harness 10 for inspection is connected with a connector 8 of a service check coupler 2 linked to the wiring harness of the wiring system through a connector 11, while always connecting with the wiring harness. A connector 12 of the other end of the wiring harness 10 for inspection is connected a connector 22 by the side of the inspection device attachably/detachably for every timing of inspection. The wiring harness for inspection is replaced when the electric conduction becomes poor between the connector by the side of the inspection device and the connector attachably/detachably. Alternatively, a relay connector 30 for inspection is mounted. A first connector coupling part 33 mounted on the relay connector 30 for inspection is always connected with the connector 8. Further, the connecter 22 is connected to a second connector coupling part 34 attachably/detachably. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a check device for an electrical system mounted on a vehicle, and more specifically, whether or not the electrical system is operating normally by frequently connecting the electrical system mounted on a two-wheeled vehicle or four-wheeled vehicle to an inspection device. When checking this, the durability of the connector detachably connected to the inspection device of the electrical system is enhanced.

  The function check of the electrical system installed in the vehicle is usually performed by the vehicle manufacturer at the time of completion of the vehicle, and after the vehicle is sold, the cause investigation and function check at the dealer when a failure occurs in the electrical system Is done with inspection equipment, and the number of function checks is very small.

  However, when the vehicle is used for important work, the function check of the electrical system may be performed every day before traveling. For example, in the case of a dedicated car for a key person, a car for high-value valuables such as a motor car or motorcycle for cashing a key person, a vehicle for cash transport, etc., or a vehicle used for a marathon event, etc. In vehicles where it is absolutely necessary to avoid the occurrence of stoppage or running stop, the function is checked daily or frequently.

This type of vehicle electrical system function check is performed by connecting a service check coupler to the terminal of the wire harness connected to the electrical component of the electrical system, and connecting the connector of the service check coupler to the connector on the inspection device side. The function is checked with the inspection equipment.
If the function check of the electrical system is frequently performed as in a daily operation, the number of fitting and unplugging of the connector on the service check coupler side and the connector on the inspection device side increases.
As a result, the male and female terminals in the connector that are engaged and disconnected from each other when the connector is connected wears down, the contact pressure of the terminal decreases, and the problem that the function check cannot be performed due to poor continuity is likely to occur at an early stage. is there. As described above, in a vehicle that needs to be function-checked on a daily basis, it is necessary to prevent a state in which the function cannot be checked due to poor continuity.

As described above, Japanese Patent Laying-Open No. 2005-347243 (Patent Document 1) has been proposed as connecting an electrical component mounted on a vehicle to an external device via a harness.
In Patent Document 1, an electrical component mounted on a vehicle is a camera, and an external harness is interposed to connect a connector provided on the outer surface of the camera housing to another control device or a power source. Connected to the connector of the camera housing.
This configuration eliminates the need for a harness to penetrate through the camera housing, and improves contact failure due to wear of connector terminals by frequently repeating connector fitting and disconnection. is not.

JP 2005-347243 A

  In the present invention, when the function check of the electrical system described above is performed on a daily basis by connecting the connector to the inspection device, it is possible to prevent the failure of the function check due to frequent contact and disconnection of the connector and the failure of the function check. Is an issue.

In order to solve the above problems, as a first invention, in a vehicle in which a function check of an electrical system mounted on the vehicle is checked by an inspection device,
The connector for connection with the inspection device of the service check coupler connected to the wire harness of the electrical system is always connected to the connector at one end of the inspection dedicated harness, while the connector at the other end of the inspection exclusive harness is at the time of inspection It is assumed that the inspection device side connector is fitted and detached every time, and when the inspection device side connector and the connector that is fitted and detached are defective in electrical connection, the inspection dedicated harness is replaced. The function check apparatus of the electrical system mounted in the vehicle characterized by the above-mentioned is provided.

As described above, in the first aspect of the invention, the inspection-specific harness including the sub-harness that is always connected to the wire harness to which the vehicle-side service check coupler is attached is provided.
In this way, the connector of the vehicle-side service check coupler is always connected to the connector on one end of the inspection-dedicated harness (hereinafter referred to as the first connector), and is frequently inserted / removed into / from the connector of the inspection device on a daily basis. Is a connector at the other end of the inspection-specific harness (hereinafter referred to as a second connector).
In other words, the connector on the service check coupler side of the wire harness of the electrical system installed in the vehicle is not connected to the first connector of the inspection-dedicated harness without being connected or disconnected during the function check. Terminal wear and contact failure associated with the first connector of the inspection-specific harness are eliminated.
On the other hand, since it is the second connector at the other end of the inspection-dedicated harness that is inserted / removed daily with the connector of the inspection device, the terminals of the second connector are worn, resulting in poor electrical connection with the connector of the inspection device. In such a case, it is only necessary to change the inspection harness. Therefore, the connector of the service check coupler on the vehicle side and the first connector of the inspection-specific harness are inserted and removed only once.

Specifically, assuming that the second connector of the inspection-dedicated harness and the connector of the inspection device are worn out due to wear and tear of the terminal 100 times, the inspection-specific harness is attached every 100th function check. Just replace it.
As described above, when the dedicated inspection harness is replaced every 100th time of the function check, the terminal in the connector is damaged due to the insertion / removal of the first connector of the inspection dedicated harness and the connector on the service check coupler side. The replacement is required only once for every 100 replacements of the inspection-specific harness. Therefore, the frequency of replacing the connector of the service check coupler with respect to the number of function checks is 100 × 100 = 10000 times. That is, when the function check is performed every day, 10000/365 = 27.39, and even if the vehicle is used for 27 years, that is, it is not necessary to replace the connector of the service check coupler.

The first connector of the inspection-dedicated harness to be fitted and connected to the connector of the service check coupler has the same shape as the connector of the inspection apparatus, and the second connector to be connected to the inspection apparatus of the inspection-dedicated harness is the connector of the service check coupler It is preferable to make it the same shape.
For example, when a female terminal is inserted into the connector of the service check coupler, the terminal of the first connector of the inspection dedicated harness is a male terminal, the terminal of the second connector is a female terminal, and is connected to the male terminal of the inspection device .
As mentioned above, when the connector is the same shape, the terminal connection form between the connector when the connector of the service check coupler is connected to the connector of the inspection device and when the inspection-specific harness is interposed is the same, and only for inspection When a situation occurs in which the second connector of the harness and the connector of the inspection device cannot be normally connected, the connector of the service check coupler can be directly connected to the connector of the inspection device.
Note that the first connector of the inspection-dedicated harness is not necessarily limited to the same shape as the connector of the inspection device and the second connector of the inspection-dedicated harness is the same as the connector of the service check coupler. The first connector of the special harness may be connected so that the second connector can be inserted into and removed from the connector of the inspection device.

Moreover, it is preferable to attach a connector cover to the second connector of the inspection-dedicated harness when the connector is not connected to the connector of the inspection device.
That is, the second connector of the inspection-specific harness is connected to the inspection device and checked for function, so that the second connector is exposed after being removed from the inspection device connector. The frequency of replacement of the two connectors is also reduced.

As a second invention, there is provided a function check device provided with an inspection-dedicated relay connector instead of an inspection-specific harness. The device
In the vehicle where the function check of the electrical system installed in the vehicle is checked by the inspection equipment,
The inspection dedicated relay connector is always connected to the connector for connection with the inspection device of the service check coupler connected to the wire harness of the electrical system, and the inspection dedicated relay connector has the same shape on both sides. And a second connector fitting portion provided through a central partition wall, and a terminal penetrating and fixed to the central partition wall is projected to the first and second connector fitting portions, and the first connector fitting portion has the service While the connector of the check coupler is always fitted and connected, the second connector fitting part shall be fitted and detached from the connector on the inspection device side at every inspection, and the inspection relay connector is not connected properly. In this case, the inspection-dedicated relay connector is replaced.

Specifically, for example, a female terminal is inserted and locked into the connector of the service check coupler and the connector on the inspection device side, while the terminal penetrating the central partition wall of the inspection-dedicated relay connector is on both sides It is preferable that a male terminal is provided in the shape.
In addition, both ends of the terminal protruding to the first and second connector fitting portions of the inspection-dedicated relay connector may be a female terminal and a female terminal, or one may be a male terminal and the other a female terminal. . That is, the terminal shape protruding to the first connector fitting portion corresponds to the shape of the terminal inserted and locked to the connector of the service check coupler, and the terminal shape protruding to the second connector fitting portion is the inspection device side connector. What is necessary is just to make it respond | correspond to the terminal shape inserted and latched.

  As described above, an inspection-dedicated relay connector is provided instead of an inspection-dedicated harness, and the first connector fitting portion of the inspection-dedicated relay connector is always connected to the connector of the service check coupler, and the second connector fitting portion Even if it is configured to mate / disengage with the connector on the inspection equipment side at every inspection, the first part on the service check coupler side only needs to be frequently inserted / removed into / from the inspection equipment connector. Since the connector mating part continues to be connected without being inserted or removed, there is terminal wear between the service check coupler connector and the first connector mating part of the inspection relay connector, resulting in poor contact. Disappear. Therefore, when the terminal of the second connector fitting portion of the inspection-dedicated relay connector is worn and poor electrical connection with the connector of the inspection device, it is only necessary to replace the inspection-dedicated relay connector. Therefore, as in the first invention, the insertion / extraction of the vehicle-side service check coupler connector and the inspection-dedicated relay connector is only performed when the inspection-dedicated relay connector is replaced, and as described above, once every 27 years, that is, Even if the vehicle is used for 27 years, it is not necessary to replace the connector of the service check coupler.

  As described above, in the present invention, in a vehicle that frequently checks the function of the electrical system on a daily basis, the sub-harness comprising the inspection-specific harness or the inspection-specific relay is connected to the wire harness connected to the service check coupler of the electrical system. The connector is always connected, and the function check is performed by connecting / disconnecting the connector at the other end of the inspection-specific harness or the second connector fitting portion of the inspection-dedicated relay connector daily with the connector of the inspection device. As described above, since frequent insertion / removal between the connector on the service check coupler side and the connector of the inspection device is eliminated, the terminal of the connector on the service check coupler side is not worn, and the replacement thereof can be made unnecessary.

It is a perspective view which shows the engine room of the motorcycle carrying the function check apparatus of the electrical equipment system of 1st embodiment of this invention. (A) is an exploded perspective view of a sub-harness check coupler, an inspection-specific harness, and an inspection device side connector, and (B) is a cross-sectional view of the connector. It is drawing which shows the connector cover covered on the 2nd connector of a harness only for a test | inspection. It is a perspective view which shows 2nd embodiment of this invention. It is sectional drawing of the inspection exclusive relay connector used by said 2nd embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 3 show a first embodiment of the first invention.
The first embodiment comprises a function check device for an electrical system mounted on a motorcycle.
The electrical components mounted on the electrical system for performing this function check include a traveling electronic control unit such as an engine control unit and a fuel injection unit, a safety electronic control unit, a security system, an immobilizer system, etc. It includes a signal harness connected to the device with a LAN cable, and further a wire harness connected to these electrical components such as a power supply line.

  The wire harness 1 of the electrical system is routed inside the accessory box housing in the engine room (X) of the motorcycle shown in FIG. 1, and the service check coupler 2 is connected to the terminal of the wire harness 1. ing. In FIG. 1, 5A and 5B are negative side and positive side batteries, 6 is a relay box, and 7 is a fuse box. The power supply side of these relay box 6 and fuse box 7 is connected to the batteries 5A and 5B, and the load side is connected to electrical equipment mounted on the motorcycle via a wire harness.

As shown in FIG. 2, a connector 8 of a service check coupler 2 is connected to the end of the wire group of the wire harness 1 in the wire harness 1 connected to the electrical component that performs the function check.
A first connector 11 on one end side of an inspection-dedicated harness 10 made of a sub-harness is always connected to the connector 8 of the service check coupler 2. The second connector 12 on the other end side of the inspection harness 10 is electrically connected to the inspection device side connector 22 connected to the inspection device 20 via the electric wire group 21 when the function is checked. is doing.

The connector 8 of the service check coupler 2 is a connector in which a female terminal 8b is accommodated in a connector housing 8a, and the second connector 12 of the inspection dedicated harness 10 is the same connector as the connector 8 and is the same as the connector housing 8a. A female terminal 12b having the same shape as the female terminal 8b is accommodated in a connector housing 12a having a shape.
On the other hand, the first connector 11 of the inspection dedicated harness 10 is the same connector as the inspection device side connector 22 connected to the inspection device 20, the connector housings 11a and 22a have the same shape, and are accommodated in these connector housings 11a and 22a. The male terminals 11b and 22b to be made have the same shape.

  In addition, a connector cover 15 is detachably attached to the second connector 12 of the inspection-specific harness 10 when not inspected and not connected to the inspection device side connector 22. The connector cover 15 has a cap shape and is provided with a protrusion 15a on the inner peripheral surface of the opening end, and the protrusion 15a can be inserted into and removed from the fitting groove 12c provided on the outer peripheral surface of the connector housing 12a of the second connector 12.

As described above, the first connector 11 of the inspection-specific harness 10 is always connected to the connector 8 of the service check coupler 2, and the inspection-purpose harness 10 is provided in the engine room (X) of the motorcycle. 18 is housed.
The inspection-specific harness 10 including the sub-harness is assembled by connecting the connector 8 of the service check coupler 2 and the first connector 11 in advance when the wire harness 1 of the electrical system is assembled. Is attached detachably.

  When checking the function of the electrical component system, the connector cover 15 of the second connector 12 of the inspection-specific harness 10 is removed, and the connector 22 of the inspection device 20 is fitted and connected to the second connector 12 to check the function. After the function check, the device-side connector 22 is removed from the second connector 12.

As described above, when the function check of the electrical component system is performed, the second connector 12 of the inspection-dedicated harness 10 is simply connected to and disconnected from the device-side connector 22, and the first connector 11 of the inspection-dedicated harness 10 and the service check coupler 2 are connected. The connector 8 remains connected.
Therefore, it is the second connector 12 and the device-side connector 22 that wears at the terminals in the connector when the connector is attached or detached, and the connector between the service check coupler 2 side connector 8 and the first connector 11 is inside the connector. There is no wear on the terminals.

It is usually about the 100th time that the terminals in the connector are abraded and the contact failure occurs when the connectors are inserted and removed, and the inspection-specific harness 10 may be replaced at the 100th function check. By exchanging the inspection-specific harness 10, the insertion / extraction of the vehicle-side service check coupler 2 with the connector 8 is performed once every 100th function check. When the inspection harness 10 is replaced, the connector 8 and the first connector 11 of the inspection harness 10 are inserted and removed, and the terminals in the connectors 8 and 11 are worn and need to be replaced. It is time to reach.
That is, when the connector 8 of the service check coupler 2 on the vehicle side is inserted into and removed from the first connector 11 of the inspection-dedicated harness, the terminal is worn at the 100 × 100 = 10000th function check. Until this reaches 10,000 times, the connector 8 of the service check coupler 2 and the first connector 11 of the inspection harness 10 can be kept in a normal connection state, and the function check can be performed due to poor contact between the terminals of the connectors 8 and 11. It is possible to prevent the occurrence of no situation.

Therefore, if the function check is performed every day, the terminal of the connector 8 of the service check coupler 2 will be worn out in the 27th year. And the connection state of the terminal with the first connector 11 of the inspection-dedicated harness 10 can be guaranteed, and the occurrence of a situation where the function check cannot be performed due to poor contact between the terminals can be prevented.
Moreover, it is not necessary to replace the connector 8 of the service check coupler 2 and the wire harness of the service check coupler 2 connected to the connector 8 for 28 years. As described above, in view of the durable years of the motorcycle, the service check coupler Replacement of the wire harness 2 is not necessary.

4 and 5 show a second embodiment.
The second embodiment is different in that the inspection-dedicated relay connector 30 is used instead of the inspection-dedicated harness 10 of the first embodiment, and the other configurations are the same.
The inspection-dedicated relay connector 30 divides the interior of one connector housing 31 by a central partition wall 32, and is provided with a first connector fitting portion 33 and a second connector fitting portion 34 having a distal end opening.

The inspection-dedicated relay connector 30 is provided with a wide stepped portion 35c at the central portion of the plate-like terminal 35, the central portion 35c is penetrated and fixed to the central partition wall 32, and male terminals 35a having tab shapes on both sides, 35b protrudes to the first connector fitting portion 33 and the second connector fitting portion 34, respectively. As described above, the terminal 35 can be positioned and held by inserting and fixing the stepped portion 35 c provided in the central portion of the terminal 35 to the central partition wall 32.
The terminal 35 is insert-molded and fixed to the central partition wall 32. In addition, you may press-fit in the terminal hole provided in the center partition wall 32. FIG.

  The connector 8 of the service check coupler 2 is always fitted to the first connector fitting portion 33 of the inspection-dedicated relay connector 30, and the female terminal 8b is fitted and electrically connected to the male terminal 35a. On the other hand, in the second connector fitting portion 34 of the inspection-dedicated relay connector 30, the inspection device side connector 22 is inserted / removed (fitted / detached) for each inspection, and the female terminal 22 b-1 is connected to the male terminal 35 b. Electrical connection.

As described above, the inspection device-side connector 22 is fitted to and detached from the second connector fitting portion 34 of the inspection-dedicated relay connector 30 at each inspection, and the female terminal 22b-1 and the male terminal 35b are inserted and removed. However, since the first connector fitting portion 33 is always held in a state where it is fitted and connected to the connector 8 of the service check coupler 2, there is no connection between the female terminal 8b and the male terminal 35a. There is no wear or deformation.
Therefore, the male terminal 35b of the second connector fitting portion 34 of the inspection-dedicated relay connector 30 is worn and deformed, resulting in poor electrical contact with the female terminal 22b-1 of the inspection-device-side connector 22, and the inspection-dedicated relay connector 30 is replaced. Only when this is done, the connector 8 of the service check coupler 2 is inserted into and removed from the first connector fitting portion 33 of the inspection-dedicated relay connector 30.
As a result, the connector 8 of the service check coupler 2 does not need to be replaced even if it has been used for 27 years, as in the case of using the inspection-specific harness of the first embodiment.

  Furthermore, in the inspection-dedicated harness 10 of the first embodiment, connectors are connected to both ends, and two connectors are required. However, when the inspection-dedicated relay connector 30 of the second embodiment is used, the number of connectors may be one, In addition, since it is only necessary to connect the always-inspection relay connector 30 to the service check coupler 2, there is an advantage that a space is not required as compared with the case where the inspection-only harness 10 is always connected.

  In the second embodiment, both ends of the terminal 35 of the inspection-dedicated relay connector 30 are male terminals 35a and 35b, but both ends may be female terminals corresponding to the terminal shapes of the connector 8 and the connector 22, One end may be different from the male terminal and the other end may be different from the female terminal.

  Although both the first and second embodiments are applied to a motorcycle, it can also be suitably applied to an automobile.

DESCRIPTION OF SYMBOLS 1 Wire harness of electrical system 2 Service check coupler 8 Connector of service check coupler 10 Inspection exclusive harness 11 1st connector 12 2nd connector 15 Connector cover 20 Inspection apparatus 22 Inspection apparatus side connector 30 Inspection exclusive relay connector 32 Central partition wall 35 Terminal 35a, 35b Male terminal

Claims (4)

In the vehicle where the function check of the electrical system installed in the vehicle is checked by the inspection equipment,
The connector for connection with the inspection device of the service check coupler connected to the wire harness of the electrical system is always connected to the connector at one end of the inspection dedicated harness, while the connector at the other end of the inspection exclusive harness is at the time of inspection It is assumed that the inspection device side connector is fitted and detached every time, and when the inspection device side connector and the connector that is fitted and detached are defective in electrical connection, the inspection dedicated harness is replaced. A function check device for an electrical system mounted on a vehicle, characterized in that.   The connector of the inspection-dedicated harness that is fitted and connected to the connector of the service-check coupler has the same shape as the connector of the inspection device, and the connector that is connected to the inspection device of the inspection-only harness has the same shape as the connector of the service check coupler The function check device for an electrical system mounted on a vehicle according to claim 1, wherein a connector cover is attached to the connector when the connector is not connected to the connector of the inspection device. In the vehicle where the function check of the electrical system installed in the vehicle is checked by the inspection equipment,
The inspection dedicated relay connector is always connected to the connector for connection with the inspection device of the service check coupler connected to the wire harness of the electrical system, and the inspection dedicated relay connector has the same shape on both sides. And a second connector fitting portion provided through a central partition wall, and a terminal penetrating and fixed to the central partition wall is projected to the first and second connector fitting portions, and the first connector fitting portion has the service While the connector of the check coupler is always fitted and connected, the second connector fitting part shall be fitted and detached from the connector on the inspection device side at every inspection, and the inspection relay connector is not connected properly. The function check device for an electrical system mounted on a vehicle is characterized in that the inspection-dedicated relay connector is replaced in the event that it becomes.   A shape in which a female terminal is inserted and locked in the connector of the service check coupler and the connector on the inspection device side, while the terminal penetrating the central partition wall of the inspection dedicated relay connector is provided with male terminals on both sides The function check device for an electrical system according to claim 3.

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