JP2012040953A - Electrical system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrical system in which the productivity of wire harness is improved such that the wire harness connecting a plurality of electric parts to a power control box is made into a simple structure having no branch structure.SOLUTION: The system includes: a meter module 51 in which a combination meter unit 52 arranged in an instrument panel is integrated with the power control box 54; a plurality of electric parts divided by areas Da, Db, Dc, etc. which are divided into a plurality of unit arrangement areas Sa, Sb, Sc, etc. dispersing on a vehicle body 22 and arranged; and a plurality of wire harness divided by areas Wa, Wb, Wc, etc. which is formed independently in each unit arrangement area to be routed and which connect the power control box 54 to the respective electric parts divided by areas Da, Db, Dc, etc.

Description

  The present invention relates to an electrical system for connecting a plurality of electrical components arranged in a plurality of unit arrangement areas distributed on a vehicle body to a power supply control box using a wire harness.

  FIG. 4 shows an example of the configuration of a conventional electrical system incorporated in a vehicle instrument panel or its periphery.

  In FIG. 4, reference numeral 1 is a vehicle body, reference numeral 2 is an engine room portion at the front of the vehicle body 1, reference numerals 3 a, 3 b, 3 c, and 3 d are doors that can be opened and closed on the vehicle body 1, and reference numeral 4 is an instrument panel. Reference numeral 5 denotes an electrical system. In FIG. 4, the arrow X indicates the front of the vehicle, and the arrow Y indicates the right side of the vehicle.

  Usually, the instrument panel 4 includes a combination meter unit 6 in which various instruments such as a speedometer, a tachometer, a fuel meter, and a water temperature meter are centrally arranged, various warning lights, a display device, and switches.

  Various electrical components are provided in the dashboard to which the instrument panel 4 is assembled, the back side of various clusters assembled to the dashboard, or the doors 3a, 3b, 3c, 3d. Examples of the electrical components incorporated in the dashboard or in the surrounding cluster include AV (Audio Visual) devices, air conditioner switches, lighting switches, and the like.

  The illustrated electrical system 5 distributes the power supplied from the battery 11 disposed in the engine room 2 to the various electrical components on the periphery of the instrument panel 4 and on the vehicle body.

  The illustrated electrical system 5 is composed of a power control box 12 and a wire harness 14 arranged at the lower part of the instrument panel 4 and the like.

  The power supply control box 12 has a built-in function unit that distributes the power supplied from the battery 11 via the relay box 15 to each electrical component to be fed.

  The wire harness 14 connects the connection terminals of each electrical component to the functional part of the power supply control box 12, and is arranged in the middle of the main wire harness 14a routed along the vehicle width direction. A branch structure in which a plurality of corresponding branch wire harnesses 14b, 14c, 14d,.

  As a technique for improving the impact resistance of the power supply control box 12 in such an electrical system 5, a technique shown in FIG. 5 has been proposed.

  The technique of FIG. 5 is disclosed in Patent Document 1 below, and includes a power supply control box 12 including two independent units of a distribution function unit 121 and a control function unit 122 that can be combined with each other. The distribution function unit 121 and the control function unit 122 are equipped with standby connectors that are connected to each other when combined.

  In addition, the distribution function unit 121 is equipped with a plurality of connectors 121a, 121b, 121c, 121d,... For connecting a plurality of wire harnesses 141a, 141b, 141c, 141d,.

  The plurality of wire harnesses 141a, 141b, 141c, 141d,... Have a branch structure in which branch wire harnesses are branched in correspondence with the arrangement of the plurality of electrical components to be connected.

  The power supply control box 12 in which the distribution function unit 121 and the control function unit 122 are combined is assembled to the back of the center cluster 7 disposed at the approximate center of the instrument panel 4 in the vehicle width direction.

  In the configuration in which the power control box 12 is arranged in the center cluster 7, the power control box 12 is evenly spaced from both side surfaces of the vehicle body, and even if a collision accident occurs on any side surface of the vehicle body, an impact or the like may cause an impact or the like. It becomes difficult to communicate with. Therefore, the impact resistance of the power control box 12 can be improved.

  In FIG. 4, the combination meter unit 6 incorporated in the instrument panel 4 incorporates a large number of electronic components that require power supply. Therefore, in order to omit the wiring connection between the power supply control box 12 and the combination meter unit 6, the following Patent Document 2 provides a technique for providing the combination meter unit 6 and the power supply control box 12 as an integrated meter module. Has been proposed.

  However, also in the technique of this patent document 2, the wire harness which connects various electrical components other than the combination meter unit 6 to the power supply control box 12 formed the branch wire harness corresponding to arrangement | positioning of several electrical components. A branched structure is used.

Japanese Patent Laid-Open No. 10-194011 JP 2000-1132 A

  However, in any of the techniques of Patent Documents 1 and 2, the wire harness that connects a plurality of electrical components to the power supply control box is a branch structure in which a plurality of branch wire harnesses branch from the main wire harness, and the entire wire harness The structure of the wire harness must be assembled into a branch structure that corresponds to the arrangement of electrical components at the connection destination, with a large size having a length corresponding to the entire width of the vehicle body, and a large number of wires having different lengths. Has become complicated, and the productivity of wire harnesses is poor.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, and to improve the productivity of the wire harness by making the wire harness connecting a plurality of electrical components to the power control box a simple structure without a branching structure. It is in providing the electrical system which can be used.

The above-described object of the present invention is achieved by the following configuration.
(1) a meter module in which a power supply control box is integrated with a combination meter unit arranged on the instrument panel;
A plurality of electrical components by area arranged separately in a plurality of unit arrangement areas dispersed on the vehicle body,
A plurality of area-specific wire harnesses that are formed independently for each unit arrangement area to be arranged and connect the power control box and each area-specific electrical component, and
The power control box includes a plurality of harness connection connectors individually provided for each area-specific electrical component, and a distribution function that distributes and outputs power and control signals corresponding to each area-specific electrical component to the corresponding harness connection connector. With
The plurality of area-specific wire harnesses are individually connected to the power control box by connectors.

  According to the configuration of (1) above, the combination meter unit and the power supply control box are integrated as a meter module. Therefore, by combining the combination meter unit and the power supply control box, the standby connectors are fitted to each other, and the electrical connection between them can be completed. Therefore, the wire harness for electrically connecting the combination meter unit and the power supply control box can be omitted, and the wire harness routed around the instrument panel can be reduced.

  In addition, according to the configuration of (1) above, the wire harness that connects each area-specific electrical component and the power supply control box is an area-specific wire harness prepared for each area-specific electrical component. A simple structure without a branching structure can be obtained by simply bundling a plurality of electric wires having the same length.

  Accordingly, the wire harness connecting a plurality of electrical components to the power supply control box can be made a simple structure without a branch structure, and the productivity of the wire harness can be improved.

  According to the electrical system according to the present invention, since the combination meter unit and the power control box are integrated as a meter module, the wire harness for electrically connecting the combination meter unit and the power control box is omitted, and the instrument panel Wire harnesses routed around can be reduced.

  In addition, according to the electrical system according to the present invention, the wire harness that connects each area-specific electrical component and the power supply control box is an area-specific wire harness that is individually prepared for each unit arrangement area, so the length is the same. A simple structure without a branching structure can be obtained by simply bundling a plurality of electric wires.

  Accordingly, the wire harness connecting a plurality of electrical components to the power supply control box can be made a simple structure without a branch structure, and the productivity of the wire harness can be improved.

It is a top view of the vehicle carrying one embodiment of the electrical equipment system concerning the present invention. It is a disassembled perspective view of the electrical equipment system shown in FIG. It is explanatory drawing of the several electrical equipment according to area connected by the electrical equipment system shown in FIG. It is a top view of the vehicle carrying the conventional electrical equipment system. It is a disassembled perspective view of another conventional electrical system.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of an electrical system according to the present invention will be described in detail with reference to the drawings.

  1 to 3 show an embodiment of an electrical system according to the present invention, FIG. 1 is a plan view of a vehicle equipped with the electrical system of an embodiment of the present invention, and FIG. 2 is shown in FIG. FIG. 3 is an exploded perspective view of the electrical system, and FIG. 3 is an explanatory diagram of a plurality of area-specific electrical components connected by the electrical system shown in FIG.

  A vehicle 21 shown in FIG. 1 is a four-door passenger car, and has a battery compartment 25 as a power source and a relay box that controls output from the battery 25 to a power supply control box described later. 27 are arranged. In addition, connectors 31a and 31b for supplying power to electrical components (such as a power window) incorporated in the doors are provided near the rotation fulcrums of the four doors 28a, 28b, 28c, and 28d that can be opened and closed on the vehicle body 22. , 31c, 31d are arranged. The instrument panel 34 of the vehicle 21 or the lower part thereof is equipped with the electrical system 41 of one embodiment of the present invention. In FIG. 1, arrow X indicates the front of the vehicle, and arrow Y indicates the right side of the vehicle.

  As shown in FIGS. 2 and 3, the electrical system 41 of this embodiment includes a meter module 51, a plurality of area-specific electrical components Da, Db, Dc..., And a plurality of area-specific wire harnesses Wa, Wb, Wc .......

  The meter module 51 has a configuration in which a power supply control box 54 is integrated with a combination meter unit 52 disposed on the instrument panel 34.

  The combination meter unit 52 has a structure in which a speedometer, a tachometer, a fuel gauge, a water temperature gauge, and the like are incorporated on the same instrument panel.

  The power supply control box 54 includes a plurality of harness connection connectors Cna, Cnb... For connecting wire harnesses to a case 55 independent of the combination meter unit 52. The plurality of harness connection connectors Cna, Cnb... Are connectors that are individually provided for each wire harness to be connected, and the plurality of area-specific wire harnesses Wa, Wb, Wc.

  In addition, a distribution function unit (not shown) and a protection function unit (not shown) are provided inside the case 55. The distribution function unit in the case 55 receives power supply from the battery 25 via the relay box 27, and supplies power and control signals corresponding to the electrical components Da, Db, Dc... For each area to the corresponding harness connection connector Cna. , Cnb... Further, the protection function unit (not shown) protects the circuit of the electrical component by preventing a current exceeding a specified value from flowing through the electrical component connected to each harness connector Cna, Cnb.

  The combination meter unit 52 and the power supply control box 54 are combined to form a single meter module 51 and assembled to the instrument panel 34. When the combination meter unit 52 and the power supply control box 54 are combined, the standby connectors provided in each of the combination meter unit 52 and the power supply control box 54 are fitted together, and the electrical connection to the electrical component in the combination meter unit 52 that requires power supply is completed. Therefore, a connection operation using a separate wire harness is not necessary for electrical connection between the combination meter unit 52 and the power supply control box 54.

  The plurality of area-specific electrical components Da, Db, Dc,... Are divided into a plurality of unit arrangement areas (areas) Sa, Sb, Sc,.

  In FIG. 3, the unit arrangement area Sa is an area set in the vehicle body ceiling. The area-specific electrical components Da are electrical components mounted in the unit arrangement area Sa, and include, for example, electrical components such as room lights, optional AV equipment, and electric sunroofs.

  The unit arrangement area Sb is an area set around the cowl on the right side of the instrument panel. The area-specific electrical component Db is an electrical component mounted in the unit arrangement area Sb.

  The unit arrangement area Sc is an area set around the lower cover arranged below the instrument panel 34. The area-specific electrical component Dc is an electrical component mounted in the unit arrangement area Sc.

  The unit arrangement area Sd is an area set around the steering. The area-specific electrical component Dd is an electrical component mounted in the unit arrangement area Sd, and includes, for example, electrical components such as a horn switch, a direction indicator switch, and a headlight switch.

  The unit arrangement area Se is an area set around the center cluster assembled near the center of the instrument panel 34 in the vehicle width direction. The area-specific electrical component De is an electrical component mounted in the unit arrangement area Se, for example, an electrical component such as an AV device or a car navigation system.

  The unit arrangement area Sf is an area set for audio, for example. The area-specific electrical component Df is an electrical component mounted in the unit arrangement area Sf and corresponds to, for example, an electrical component such as an audio device or a speaker.

  The unit arrangement area Sg is an area set for the air conditioner. The area-specific electrical component Dg is an electrical component mounted in the unit arrangement area Sg, for example, an electrical component such as an air conditioner.

  The unit arrangement area Sh is an area set around the glove box assembled to the dashboard. The area-specific electrical component Dh is an electrical component mounted in the unit arrangement area Sh.

  The unit arrangement area Si is an area set around the cowl on the left side of the instrument panel. The area-specific electrical component Di is an electrical component mounted in the unit arrangement area Si.

  The area-specific wire harnesses Wa, Wb, Wc... Are formed independently for each unit arrangement area Sa, Sb, Sc... As a routing destination, and the power control box 54 and the area-specific electrical components Da, Db, Dc... Are connected.

  The multiple wires that make up a single wire harness for each area have the same base point and end point, so they are all bundled in a simple form with no branching as shown in FIG. Yes. Moreover, the connector which connects to the power supply control box 54 or an electrical component so that attachment or detachment is possible is equipped in the both ends of each area wiring harness.

  The plurality of area-specific wire harnesses Wa, Wb, Wc... Are individually connected to the power control box 54 by connectors.

  In the electrical system 41 of the embodiment described above, the combination meter unit 52 and the power supply control box 54 are integrated as a meter module 51. Therefore, by combining the combination meter unit 52 and the power supply control box 54, the standby connectors can be fitted to each other so that the electrical connection between them can be completed. Therefore, the wire harness for electrically connecting the combination meter unit 52 and the power supply control box 54 can be omitted, and the wire harness routed around the instrument panel 34 can be reduced.

  In the electrical system 41 of the embodiment described above, the wire harness that connects each area-specific electrical component Da, Db, Dc... And the power control box 54 is connected to each area-specific electrical component Da, Db, Dc. …… Each area-specific wire harness Wa, Wb, Wc …… for each area. As shown in FIG. 2, as shown in FIG. It can be a simple structure without.

  Therefore, the wire harness that connects a plurality of electrical components to the power supply control box 54 can be made a simple structure without a branch structure, and the productivity of the wire harness can be improved.

  The electrical system 41 of the present invention is not limited to the above-described embodiments, and appropriate modifications and improvements can be made.

  For example, the specific positions and quantities of the plurality of unit arrangement areas distributed and arranged on the vehicle body are not limited to the above embodiment.

21 Vehicle 25 Battery 34 Instrument panel 41 Electrical system 51 Meter module 52 Combination meter unit 54 Power supply control box 55 Case Cna, Cnb …… Harness connector Da, Db, Dc …… Area-specific electrical equipment Sa, Sb, Sc …… Unit placement area Wa, Wb, Wc …… Wire harness by area

Claims (1)

A meter module in which a power supply control box is integrated with a combination meter unit arranged on the instrument panel;
A plurality of electrical components by area arranged separately in a plurality of unit arrangement areas dispersed on the vehicle body,
A plurality of area-specific wire harnesses that are formed independently for each unit arrangement area to be arranged and connect the power control box and each area electrical component,
The power control box includes a plurality of harness connection connectors prepared individually for each unit arrangement area, and a distribution function unit that distributes and outputs power and control signals corresponding to the electrical components for each area to the corresponding harness connection connectors. And
The plurality of area-specific wire harnesses are individually connected to the power control box by connectors.

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