JP2000289492A - Wiring structure for automotive instrument panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce costs and make compact a wiring structure inside the instrument panel of an automobile. SOLUTION: An electric connecting box 30 for supplying power or distributing input/output signal to a display control board 22 is attached to the position side part 31 of a display case 21 housing the display control board 22 for controlling a display main body 24 as a meter or the like, and an inserting connecting part 221 provided in the side part of the display control board 22 is directly inserted into the electric connecting box 30 and electrically connected. Thus, the necessity of providing a wiring member, a connector or the like between the display control board 22 and the electric connecting box 30 is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring structure in an instrument panel of an automobile.

[0002]

2. Description of the Related Art Generally, an instrument panel of an automobile is provided with a display having various meters, display lamps, and the like, and a display for controlling the display is provided inside the instrument panel. A control board is arranged. As a wiring structure for connecting such a display control board to other electrical components and the like, the wiring to be connected to the display control board is aggregated, and an electric connection box (J / A configuration is known in which B) is provided inside the instrument panel, and the display control board and other electrical components are connected via the electric connection box. By using such an electric junction box, it is possible to simplify the wiring structure and to facilitate manufacture and maintenance.

Conventionally, a wiring structure for performing power supply, transmission of various input / output signals, connection to a ground line, and the like between such an electrical junction box and a control board for a display is as follows.
A configuration in which a wiring member such as a wire harness is connected to a connector has been adopted.

[0004]

However, in recent years, with the advancement of various controls in automobiles, the number of wiring members and connectors, such as signal lines and power supply lines, connected to the control board for display devices has increased. Due to the tendency, wiring members, connectors, and the like for connecting the display control board and the electric connection box are increased in size, causing an increase in the weight of the wiring structure and an increase in cost.

If the wiring members and connectors for connecting the display control board and the electric connection box are enlarged, a space for accommodating them must be secured inside the instrument panel. There is also a problem that the layout of various electric components mounted in the instrument panel is restricted due to space.

[0006] In recent years, it has been required to respond to various optional specifications according to the demands of users.
In order to cope with different types of signal lines depending on the option specifications, wiring members, connectors, electric connection boxes and the like are different depending on the option specifications, resulting in high costs.

[0007] The present invention has been made in view of the above problems, and has as its object to reduce the cost and size of a wiring structure inside an instrument panel.

[0008]

In order to solve the above-mentioned problems, a wiring structure in an instrument panel of an automobile according to the present invention includes a display control board for controlling a display mounted on the instrument panel; An electric connection box containing a circuit to be connected to the display control board is provided inside the instrument panel, and each of the display control board and the electric connection box is provided with a direct connection portion. The display control board and the electric connection box are electrically connected directly by coupling the direct connection portions provided on the display control board and the electric connection box (claim 1). By directly connecting the display control board and the electric connection box by directly connecting the display control board and the electric connection box provided in the electric connection box in this way, the connection between the display control board and the electric connection box can be made. It is possible to reduce the cost and size of the wiring structure inside the instrument panel by eliminating the wiring members and connectors between them.

It is desirable that the direct connection portions provided on the display control board and the electric connection box are connected to each other by fitting each other. With this configuration, the direct connection portions provided on the display control board and the electric connection box can be easily connected to each other.

[0010] Specifically, as a configuration in which the direct connection portions are connected by fitting, specifically, a plurality of contacts for conducting the peripheral portion of the display control board to a circuit disposed on the board are provided. In addition to being configured as an insertion connection portion provided, the electrical connection box is provided with an insertion connection portion into which the insertion connection portion is inserted, and the insertion connection portion is formed by the insertion connection portion. A configuration can be provided in which a plurality of contacts provided in the insertion connection portion and the circuit in the electric connection box are electrically connected by being inserted (claim 3). With this configuration, the display control board and the electric connection box can be easily directly connected by inserting the insertion connection portion of the display control board into the inserted connection portion of the electric connection box.

Further, the electric connection box has a circuit constituted by a plurality of bus bars, and at least a part of the plurality of bus bars is arranged so that tips of the plurality of bus bars protrude from the outer surface of the electric connection box to form tab terminals. If the inserted connection portion is constituted by these tab terminals, the bus bar constituting the circuit of the electric connection box is also used as a part of the inserted connection portion, while suppressing an increase in the number of parts. By configuring the insertion connection portion, it is possible to further reduce the cost (claim 4).

Further, the electric connection box includes a plurality of the connection portions to be inserted, so that the electrical connection box is directly electrically connected to the display control board and one or a plurality of optional boards provided with the insertion connection portions. If it is configured so that connection can be made, option boards for realizing various optional specifications can also be directly connected to the electrical connection box, and wiring members between such an option board and the electrical connection box can be eliminated. Further, the size and cost can be further reduced (claim 5).

Further, in the insertion connection portions of the various option boards, respective contacts for supplying power, transmitting / receiving input / output signals, connecting to a ground line, etc. are arranged at the same position regardless of the corresponding option specifications. With such a configuration, even if the option boards of different types can be connected by being inserted into the same insertion connection portion of the electric connection box, the number of insertion connection portions provided in the electric connection box can be reduced. The same electrical junction box can be used to meet various optional specifications while reducing the size of the electrical junction box by reducing the number of the electrical junction boxes, thereby reducing the cost (claim 6).

Such an electric connection box is provided at any position adjacent to the display control board so that it can be directly electrically connected to the display control board. However, since the space inside the instrument panel generally has a large spread in the left-right direction, it is desirable that the electric junction box be arranged on the side of the display control board (claim). Item 7).

Further, when the electric connection box is arranged on the side of the display control board as described above, the display control board is provided with the insertion connection portions on both left and right sides thereof. It is desirable to be configured so as to be able to be electrically connected to the electric connection box also by the insertion connection part of (Claim 8). By providing the insertion connection portions on the left and right sides of the display control board in this way, by using only the left or right insertion connection portion, the electric connection box is arranged on either the left or right side of the display control board. Therefore, the same display control board can be used for both a right-hand drive vehicle and a left-hand drive vehicle to share components and reduce costs.

Further, in a case where the same control board for a display is used for both a right-hand drive vehicle and a left-hand drive user, the control board for a display includes:
Once, after forming the insertion connection on the left and right sides,
One of the insertion connection portions may be cut off, and the remaining insertion connection portion may be configured to be electrically connected to an electric connection box disposed at a side position of the display control board. Desirable (claim 9). With this configuration, the control board for the display device can be made compact by cutting off the unused insertion connection part on either the left or right side.

Further, an openable and closable opening is provided at an outermost portion of the instrument panel, and the electric connection box is disposed inside the instrument panel corresponding to the opening, and the electric connection box is opposed to the opening. If an outer surface of the electric junction box is provided with a mounting portion for detachably mounting a consumable component such as a fuse or a relay, the opening is opened to expose the mounting portion, thereby enabling the mounting of a consumable component such as a fuse or a relay. Maintenance work such as replacement can be easily performed (claim 10).

Further, if a display case for accommodating the display control board is provided, and the side of the display case forms the case of the electric connection box, direct electrical connection can be established. Since the display control board and the electric connection box can be easily integrated and handled,
Assembly work and maintenance work can be performed more easily.

Further, when the side of the display case is a case of an electric junction box, if the display case is configured to be substantially vertically symmetrical, the left and right sides of the display case are inverted to thereby control the display control board. Because the electrical junction box can be located on either side of the vehicle, the same display case can be used for both right-hand drive and left-hand drive models to share parts and reduce costs. (Claim 12).

Further, the display control board may be configured to distribute a small current supplied from the electric junction box on the board, and to distribute the small current to a small current circuit provided on the board. Desirable (claim 13). With this configuration, of the contacts provided at the insertion connection portion and the insertion connection portion, a contact for supplying power from the electric connection box to each of the plurality of small current circuits on the display control board is provided. Since the number of contacts can be reduced at a time, the insertion connection portion and the insertion connection portion can be configured more compactly.

Further, the display control board includes a large current control device for controlling a large current input from the electric junction box, and the large current control device is arranged near a connection position with the electric junction box. Then, the number of wiring portions that need to be configured to have a large diameter to allow a large current to flow on the display control board can be reduced, and the display control board can be reduced in size and cost. ).

Further, when such a large current control device is provided, the display control board is provided with abnormal state display means for displaying that an abnormal state has been detected by the large current control device. It is preferable that a signal indicating an abnormal state formed by the device is processed on the control board for the display device, and the abnormal state is displayed by the abnormal state display means. According to this configuration, the large current control device and the abnormal state display unit are configured by a compact configuration that does not use a wiring member such as a wire harness or a connector.
An abnormal state detected by the high current control device can be displayed.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a wiring structure in an instrument panel of an automobile according to the present invention will be described with reference to FIGS.
1 will be described.

FIG. 1 is an exploded perspective view of the display module 20 and the electric connection box 30. FIG. 2 is an explanatory perspective view showing a state where the display module 20 and the electric connection box 30 are attached to the instrument panel 10. .

As shown in FIG. 1, the display module 20
Is a display case 21 having a substantially L-shaped horizontal section.
The display control board 22 is attached to the front side (the inner side of the long side of the substantially L-shape), and a display main body 24 composed of various meters and the like is provided on the display housing 23 on the front side of the display control board 22. The display housing 23 is housed and attached, and furthermore, a display visor 25 and a transparent cover 26 are placed on the front side of the display housing 23. The display case 21 is configured to be substantially symmetrical in the upper and lower directions, so that the same display case 21 can correspond to the right handle specification and the left handle specification as described later.

The display main body 24 is attached to the display control board 22 by using a meter 241 as an example in FIG.
To be more specific, referring to FIG. 7 and FIG. 7, the meter 241 has a metal mounting pin 226 that penetrates the display control board 22 from the back side, and the leg 241 a of the meter 241.
Is mounted on the front side of the display control board 22 by inserting the mounting pins 22.
6 is in contact with the wiring pattern 225 provided on the display control board 22 to conduct electricity, and the vicinity of the tip of the mounting pin 226 is inside the lead wire 241 b and the leg 241 a connected to the driving coil 241 c of the meter 241. The wiring pattern 22 of the display control board 22
5 and the drive coil 241c of the meter 241 are electrically connected.

Returning to FIG. 1 and FIG.
A plurality of busbars are provided between an outer surface portion (an outer surface of a substantially L-shaped short side) 31 of the display case 21 and a part of an electrical junction box housing 34 attached to the outer surface. 32 are arranged in a plurality of layers with a partition substrate 33 interposed therebetween. On the outer side surface of the electric connection box housing 34, a mounting portion 35 is provided in which a consumable part 41 such as a fuse or a relay and a connector 42 for connecting to other electrical components can be detachably mounted.

As shown in FIG. 2, the display module 20 and the electric connection box 30 are integrally connected by the display case 21, and the display module 20 and the electric connection box 30 are connected to the driver's seat from the inside of the instrument panel 10. It is adapted to be attached to an opening 11 provided at the front position.

The instrument panel 10 includes:
An opening 12 that opens laterally is provided on an outer surface portion outside the driver's seat, and a frame 13 that covers an inner peripheral edge portion of the opening 12 is fixed to the opening 12. An instrument panel lid 14 is detachably attached to the frame 13 so as to open and close the opening 12.

When the electric connection box 30 is mounted inside the instrument panel 10, the mounting portion 35 provided on the outer surface portion of the electric connection box 30 has an opening 12 on the outer surface portion of the instrument panel 10. When the instrument panel side lid 14 of the opening 12 is removed, the mounting portion 35 of the electric connection box 30 is attached to the instrument panel 10.
It is designed to be exposed outside. Therefore, maintenance work such as replacement of consumable parts such as fuses and relays attached to the attachment portion 35 can be easily performed.

Next, the connection between the display control board 22 of the display module 20 and the electric connection box 30 will be described with reference to FIGS. 3 and 4. FIG. In addition, FIG.
FIG. 4 is an exploded perspective view of a connection portion between the display control board 22 and the electric connection box 30, and FIG. 4 is a horizontal cross-sectional view of the connection portion.

As shown in FIG. 3, the display control board 22
Is formed with an insertion connection portion 221 projecting in a rectangular shape toward the side, and the insertion connection portion 221 includes:
A plurality of contacts 222 that are electrically connected to a circuit disposed on the substrate 22 are provided.

On the other hand, in the electric connection box 30, at least a part of the bus bars 32... Constituting the internal circuit is bent and raised toward the display control board 22 side.
The tip portions form tab terminals 321... Protruding from the outer surface of the electric connection box housing 31. The tab terminals 321 are connected to the insertion connection portions 2 of the display control board 22.
21 are connected to each other to form an inserted connection portion that directly electrically connects the display control board 22 and the electric connection box 30 electrically.

Specifically, the inserted connection portion is formed by the tab terminal 32 provided to protrude from the electric connection box housing 31.
Terminal holder 322 attached so as to surround 1 ...
And inside the terminal holder 322, each tab terminal 32
Are inserted into the terminal holder 322, as shown in FIG. 4, by inserting the insertion connection portion 221 of the display control board 22 into the terminal holder 322. Terminal 2 provided in part 221
22 are connected to the tab terminals 321.
23 and is brought into conduction.

According to the wiring structure having such a configuration, the display control board 22 and the electric connection box 30 can be directly electrically connected without using a wiring member such as a wire harness or a connector. As a result, a space occupied by wiring members, connectors, and the like for electrically connecting the display control board 22 and the electric connection box 30 as in the related art can be eliminated, thereby achieving a compact configuration. Further, since a wiring member, a connector, and the like as in the related art are not required, the cost of parts can be reduced correspondingly.

Further, since the electrical connection can be made only by inserting the display control board 22 into the electrical connection box 30, the assembling work is easy, and the maintenance work such as replacement of parts is also easily performed. Can be.

Further, since the insertion connection portion 221 corresponding to the male side of the fitting is formed on the display control board 22,
A part of the peripheral portion of the substrate 22 can be directly used as a direct connection portion, so that the display control board 22 having such a direct connection portion can be configured at low cost.

Next, the arrangement of the electric components provided on the display control board 22 will be described with reference to FIG.

On the display control board 22, a display main body 24 including the meter 241 and various display lamps is provided as a plurality of display circuits 285.
Power for various display operations for these display circuits 285... Is supplied from the electric connection box 30 via the insertion connection portion 222 and the insertion connection portions 321, 322, and 323. This electric power is usually smaller than electric power supplied to other electric devices such as a headlight and an air conditioner included in an automobile, and generally has an electric current of about 1 A or less. In the display control board 22 according to this embodiment,
Such a small current supplied from the electric connection box 30 is distributed on the board 22 by splices 284 provided on the power supply lines 283 on the board 22 and transmitted to the display circuits 285. It is configured to be.

As described above, by adopting the configuration of distributing electricity on the display control board 22, a power supply line for supplying a small current to a portion where a small current needs to be supplied, such as the above-described display circuit 285. Can be put together, so that the insertion connection portion 222
In addition, the number of contacts included in the inserted connection portions 321, 322, and 323 can be reduced, so that the insertion connection portion 222 and the inserted connection portions 321, 322, and 323 can be configured to be compact.

Also, on the display control board 22,
A large current control device such as an IPS for monitoring whether an abnormality has occurred in the large current circuit due to disconnection of a headlight or the like to which a large current is supplied through the electric connection box 30 is provided. I have. Specifically, the large current control device 281 is mounted on the display control board 22 in the vicinity of the connection part (insertion connection part 222) with the electric connection box 30 and supplies electricity to the inside of the electric connection box 30. From the large current circuit to be connected, the wiring through which the large current drawn into the display control board 22 is connected through the insertion connection portion 222 and the insertion connection portions 321, 322, and 323 is connected.
When an abnormality occurs in the amount of current flowing through the large current control device 281, the large current control device 281 stops supplying current to the output side (OUT side).

As described above, in the wiring structure according to this embodiment, the large current control device 281 prevents the trouble of the large current circuit from occurring, and connects the large current control device 281 to the electric connection box 30. Is attached in the vicinity of the connection portion (plug-in connection portion 222), the wiring portion that needs to be configured to have a large diameter in order to flow a large current on the display easy control board 22 is shortened.
The size of the display control board 22 can be reduced.

In the display control board 22, when the large current control device 281 detects an abnormality in the amount of current, the large current control device 281 sends an abnormality warning lamp (abnormal state display means) 282 provided on the board 22. An abnormality signal is transmitted, and the abnormality warning lamp indicates an abnormal state.
As described above, in this wiring structure, the abnormality of the large current circuit is processed in the display control board 22. Therefore, the abnormal state detecting means (large current control device 281) and the abnormal state displaying means (abnormality warning lamp 282) ) Does not require a wiring member, a connector, or the like, and the wiring structure can be made compact.

Next, with reference to FIG. 8 and FIG. 9, a configuration for coping with the optional specification in this wiring structure will be described. FIG. 8 is an explanatory perspective view of a method of mounting the option boards 271 and 272 for complying with optional specifications, and FIG. 9 is a circuit configuration diagram of the option boards 271 and 272 and the electric connection box 30.

As shown in FIG. 8, in this wiring structure, in addition to the display control board 22, one option board 271, 272 is attached to the electrical junction box 30 in front of and behind the display control board 22. It can be connected in a state where it is layered. This optional board 27
The connection form between the electric connection box 30 and the electric connection box 30 is similar to the connection form shown in FIGS.
Option boards 271, 2
It is configured to be electrically connected directly by inserting an insertion connection portion provided on the side of 72.

As shown on the right side of FIGS. 9A and 9B, the electric connection box 30 to which the optional boards 271 and 272 are attached includes a power supply line from a battery, a power supply line via an ignition switch, and a ground. A circuit is composed of lines, various input / output signal lines, and power output lines to head lamps and the like, and the ends of these lines are connected to the connection portions (insertion connection portions) with the option boards 271 and 272 in a predetermined order. It is arranged, and the option boards 271 and 27
2 constitutes a terminal that conducts with the contact provided in the second contact.

On the other hand, on the option boards 271 and 272, the connection parts (insertion connection parts) with the electrical connection box 30 are provided on the side of the electrical connection box 30 necessary according to the option specifications corresponding to the option boards 271 and 272. Are provided with contacts for connection to the terminals. That is, in each of the option boards 271 and 272, contacts that perform the same function are arranged at the same position in accordance with the terminal arrangement of the inserted connection portion of the electric connection box 30 regardless of the corresponding option specification. .

For this reason, even the option boards 271 and 272 for realizing different option specifications can be connected by being inserted into the same inserted connection portion provided in the electric connection box 30. Thus, the number of types of components can be reduced by using the same electric connection box 30 irrespective of optional specifications, and cost can be reduced.

Next, in this wiring structure, a configuration for supporting the right handle specification and the left handle specification will be described.
This will be described with reference to FIGS.

FIG. 10 shows the display control board 22 in a manufacturing process before being attached to the display case 21. As shown in FIG.
The insertion connection portions 221 and 227 are once formed on the left and right sides thereof, and the insertion connection portion which is not used depends on which side of the left and right sides of the display control board 22 the electric connection box 30 is arranged. It is manufactured by cutting the parts 221 and 227 along cutting lines 229 and 229.

Therefore, before the cutting step, the same display control board 2 is used for the wiring structure in which the electric connection box 30 is disposed on the left or right side of the display control board 22.
2 can be used, so that the same display control board 22 can be used regardless of the right-hand drive specification and the left-hand drive specification to reduce the number of types of parts and reduce costs. In addition, the unused insertion connection portion 22
Since the first and second parts 227 are cut and attached, the unused insertion connection parts 221 and 227 are prevented from occupying the space inside the instrument panel 10,
The wiring structure can be made compact.

FIG. 11 is an exploded perspective view showing the display module 20 and the electric connection box 30 corresponding to the left-hand drive specification.

The display control board 22 in the left-hand drive specification is connected to the above-described right-hand insertion connection portion 221.
It is the one that was excised. Further, as described above, since the display case 21 is configured to be substantially vertically symmetrical, the display control board 22 and the display control board 22 used in FIG. The display housing 23, the display main body 24, the display visor 24, and the transparent cover 26 can be directly attached to the display case 21 without reversing their vertical positions.

As described above, since the display case 21 is substantially vertically symmetrical, the electric connection box 30 is disposed on either the right or left side of the display control board 22 in order to comply with the right handle specification and the left handle specification. Even in such a case, since the same display case 21 can be used by inverting left and right, the types of the display cases 21 can be integrated into one type to reduce the cost.

Although the present invention has been described with reference to the embodiment, the wiring structure in the instrument panel of the automobile according to the present invention is not limited to the above embodiment, but is configured as follows. You may.

(1) In the above embodiment, the tab terminal 321 is formed by bending and raising the bus bar 32 in the electric connection box 30.
Are connected by connecting the relay terminals 323 to each other. However, if the electrical connection box 30 and the display control board 22 can be directly electrically connected to each other, such a relay can be used. Without using the terminals 323, etc., for example,
The contact 2 between the tab terminals 321... And the display control board 22
.. May be brought into conduction by directly contacting them.

(2) In the above embodiment, the electric connection box 30 is arranged on the side of the display control board. However, the electric connection box 30 is adjacent to the display control board 22 and is connected to the display control board 22. As long as it can be directly connected, it may be arranged at any position such as above, below, or behind the display control board 22. However, from the viewpoint of facilitating assembly and maintenance work, the insertion connection portion of the display control board 22 is connected to the electric connection box 3.
0 so that they can be connected to each other by being inserted into the insertion connection portion provided in the display control board 22 such as the upper, lower, left and right positions of the display control board 22. It is desirable to arrange.

(3) In the above embodiment, the inserted connection portions 321, 322, 32 provided on the electric connection box 30
3, an insertion connection portion 2 provided on the display control board 22.
The electric connection box 30 and the display control board 22 are configured to be electrically connected directly by inserting the electric connection box 21. However, the connection form between the electric connection box 30 and the display control board 22 is an electric connection. Box 30 and display control board 22
If it is a configuration that can electrically connect directly to
The invention is not limited to the insertion type, and any known connection means may be employed.

(4) In the above embodiment, the electric connection box 30 is provided with only one insertion connection portion to which the option boards 271 and 272 are connected, but a plurality of insertion connection portions are provided. The display control board 22 may be provided so that a plurality of optional boards can be simultaneously connected together.

(5) In the above embodiment, the insertion connection portions 221, 221 formed on the left and right sides of the display control board 22 are provided.
Although the configuration in which one of the 227 is cut off is used, it may be attached to the display case 21 with the left and right insertion connection portions 221 and 227 left.

(6) In the above embodiment, the circuit of the electric connection box 30 is constituted by the plurality of bus bars 32..., But the electric connection box 30 supplies power to the display control board 22, distributes input / output signals and As long as the connection with the ground wire or the like is performed in an integrated manner, any known configuration such as a circuit configuration using a single core wire may be adopted.

(7) In the above embodiment, the insertion connection portion 22 corresponding to the male side of the fitting to the display control board 22 is provided.
1, the insertion connection portions 321, 322, and 323 corresponding to the female side of the fitting are provided in the electric connection box 30. On the other hand, the direct connection portion on the female side of the fitting is connected to the display control board 22. The electrical connection box 30 may be provided with a direct connection part on the male side of the fitting.

[0063]

As described above, according to the wiring structure in the instrument panel of an automobile according to the present invention,
Since the display control board provided inside the instrument panel and the electrical connection box are configured so that the electrical connection is made directly, wiring members and connectors between the display control board and the electrical connection box are provided. By eliminating such factors, the cost and size of the wiring structure inside the instrument panel can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a wiring structure in an instrument panel of an automobile according to the present invention.

FIG. 2 is an explanatory perspective view showing a mode of mounting a display module and an electric connection box in an instrument panel.

FIG. 3 is an explanatory perspective view of a connection portion between a display control board and an electric connection box.

FIG. 4 is a horizontal sectional view of the connection portion.

FIG. 5 is a circuit configuration diagram of a display control board and an electric connection box.

FIG. 6 is an explanatory perspective view showing a method of attaching a meter to a display control board.

FIG. 7 is a longitudinal sectional view showing a method of attaching a meter to a display control board.

FIG. 8 is an exploded perspective view showing a mounting mode of an option board.

FIG. 9 is an explanatory diagram illustrating an example of electrical connection between an option board and an electrical connection box.

FIG. 10 is a plan view showing a display control board in a manufacturing process.

FIG. 11 is an exploded perspective view showing the configuration of a display module in a left-hand drive vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Instrument panel 20 Display module 21 Display case 22 Display control board 221 Insertion connection part 222 Contact 23 Display housing 24 Display main body 25 Display visor 26 Transparent cover 30 Electric connection box 31 Electric connection box case 32 Bus bar 321 Tab terminal (inserted connection) 322 Terminal holder (inserted connection) 323 Relay terminal (inserted connection) 41 Fuse 42 Connector

 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yasumitsu Yamanaka 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi F-term in Harness Research Institute, Inc. (reference) 3D044 BA03 BB01 BD02 BD13

Claims (15)

[Claims] 1. A display control board for controlling a display mounted on an instrument panel, and an electric connection box containing a circuit to be connected to the display control board are provided inside the instrument panel. The display control board and the electric connection box are provided with a direct connection portion, respectively, and the display control board and the direct connection portion provided on the electric connection box are connected to each other, so that the display control board and the electric connection box are connected. A wiring structure in an instrument panel of an automobile, wherein the connection box is electrically connected directly. 2. The instrument according to claim 1, wherein the direct connection portions provided on the display control board and the electric connection box are connected to each other by fitting each other. Wiring structure in the panel. 3. A peripheral part of the display control board is configured as an insertion connection part having a plurality of contacts for conducting to a circuit disposed on the board, and the electrical connection box includes An insertion connection portion into which the insertion connection portion is inserted is provided, and the insertion connection portion includes a plurality of contacts provided in the insertion connection portion and an electrical connection box when the insertion connection portion is inserted. 3. The wiring structure in an instrument panel of an automobile according to claim 2, wherein the wiring structure is configured to conduct the internal circuit. 4. The electric connection box includes a circuit constituted by a plurality of bus bars, and at least a part of the plurality of bus bars is arranged so that tips thereof protrude from an outer surface of the electric connection box to form tab terminals. 4. The wiring structure in an instrument panel of a motor vehicle according to claim 3, wherein said tab connection terminal is provided with said tab connection terminal. 5. The electric connection box includes a plurality of the insertion connection portions, so that not only the display control board but also an option substrate provided with the insertion connection portion and corresponding to various option specifications is directly provided. 5. The wiring structure in an instrument panel of an automobile according to claim 3, wherein the wiring structure is configured to be able to make an electrical connection to the vehicle. 6. An insertion connection portion of the various option boards arranges respective contacts for performing power supply, transmission / reception of input / output signals, connection with a ground line, etc., at the same position regardless of the corresponding option specifications. 6. The wiring structure in an instrument panel of an automobile according to claim 5, wherein the wiring structure is configured as described above. 7. The wiring structure in an instrument panel of an automobile according to claim 3, wherein the electric connection box is arranged on a side of the display control board. 8. The display control board, wherein the insertion connection portions are provided on both left and right sides thereof, and the display control board can be electrically connected to an electric connection box by either of the left or right insertion connection portions. The wiring structure in an instrument panel of a vehicle according to claim 7, wherein the wiring structure is provided. 9. The display control board, once the insertion connection portions are formed on both left and right sides thereof, one of the insertion connection portions is cut off, and the other insertion connection portion remains. 9. The wiring structure in an instrument panel of an automobile according to claim 8, wherein the wiring structure is configured to be electrically connected to an electric connection box disposed on a side of the display control board. 10. An openable and closable opening is provided at an outermost portion of the instrument panel, and the electric connection box is arranged inside the instrument panel corresponding to the opening, and the electric connection box is opposed to the opening. On the outside surface of the electrical junction box,
The wiring structure for an instrument panel of an automobile according to any one of claims 7 to 9, further comprising a mounting portion for detachably mounting a consumable part such as a fuse or a relay. 11. A display case for accommodating the display control board, wherein a side portion of the display case is configured to form a case of the electric connection box. The wiring structure in the instrument panel of the automobile according to any one of claims 10 to 10. 12. The wiring structure in an instrument panel of an automobile according to claim 11, wherein the display case is configured to be substantially vertically symmetrical. 13. The display control board is configured to distribute a small current supplied from the electric junction box on the board, and to distribute a small current to a small current circuit provided on the board. The wiring structure in an instrument panel of an automobile according to any one of claims 1 to 12, wherein: 14. The display control board includes a large current control device for controlling a large current input from the electric connection box, and the large current control device is provided near a connection position with the electric connection box. The wiring structure in an instrument panel of an automobile according to any one of claims 1 to 13, wherein the wiring structure is arranged. 15. The control board for an indicator further comprises an abnormal state display means for displaying that an abnormal state has been detected by the high current control device, and a signal indicating an abnormal state formed by the high current control device is provided. 15. The wiring structure in an instrument panel of an automobile according to claim 14, wherein processing is performed on the display control board, and an abnormal state is displayed by the abnormal state display means.