JPH01218930A - Instrument device - Google Patents

Abstract

PURPOSE:To enable an instrument main unit to easily perform its check work by forming an opening part in a holding member opposed facing to a work checking terminal part provided in a case in its side surface. CONSTITUTION:A terminal part 12 is provided in an intermediate position or in an extension position of a conductive part 11 connecting a connection part to a connector 10. A car body, which is a holding member supporting an instrument device to be mounted, forms an instrument panel 14, and the instrument device 1 is fixedly mounted into the instrument panel 14 by bolts 13 through a mounting arm part 16 protrusively provided in the sideward of a case 2. While the instrument panel 14 forms in its upper part an opening part 15 to be opposed facing to a folded part 8 providing the terminal part 12, after the instrument device 1 is fixedly mounted, this opening part 15 is normally closed by a cover 17.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an instrument device installed in a motor vehicle.

[Conventional technology]

In general, moving objects such as automobiles, auto-hire cars, and motorports have instruments such as speedometers, warning lights, and alarms to inform the driver of running speed, engine speed, or abnormalities in various installed parts. The main body is stored and fixed inside the case, and these instrument bodies are mounted on the FP located on the rear of the case.
A meter device is built in that is configured to operate in response to an electric signal via a C board (flexible printed wiring board), and is constructed by covering the front of the meter body with a see-through cover. In such a meter device, it is necessary to adjust the index of the meter body after fixing the meter body in the case.
As disclosed in Japanese Patent No. 6014 and the like, a configuration is known in which the instrument body can be operated through a through hole formed in the rear surface of the case.

[Problem to be solved by the invention]

By the way, when the above-mentioned instrument device is used for an automobile, the fixing members such as bolts for mounting on the installation panel are not exposed to the driver (and cannot be easily removed under normal conditions). By connecting the wiring cords routed from the built-in electrical equipment installed on the vehicle body side, such as batteries and various detection sensors, to the FPC board, electrical continuity is established between the electrical equipment and the instrument body. .

However, if a malfunction occurs in the instrument body after it is installed on the vehicle body, the cause may be due to the instrument device, electrical equipment,
It is not possible to determine whether it is in the wiring cord or the connection point between the FPC board and the wiring cord, etc., and therefore it is necessary to check each part and location. However, when checking the instrument body, the configuration of the conventional example Even if this could be applied for checking, the instrument device would have to be removed from the installation panel once, which would be a very complicated task, especially for automobile instrument devices that are not easy to attach and detach.

[Purpose of the invention]

The present invention was conceived with attention paid to the problems of the conventional example, and an object of the present invention is to provide an instrument device that allows extremely easy checking of the instrument body after assembly.

[Means to solve the problem]

In order to achieve the above object, the present invention provides an FPC which is installed and fixed inside a holding body such as an installation panel formed on the vehicle body side, and which is disposed on the rear surface of the case so that electrical signals from electrical equipment disposed on the vehicle body side are transmitted. In a meter device that is supplied to the meter body in the case through a plate, an operation check terminal that is electrically connected to a connection point between the meter body and the FPC board so as to supply an electric signal for inspection to the meter body. A portion is provided on a side surface of the case, and an opening is formed in the holding body facing the terminal portion.

[Effect]

An electrical signal for inspection can be supplied from the opening of the holder to the terminal provided on the side surface of the case.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 show an embodiment of the present invention applied to a vehicle meter.

The instrumentation device 1 has a speedometer and 9 tachometers inside the case 2.

The well-known structures that make up fuel gauges, thermometers, etc., such as movable magnet type meters and moving coil type meters that provide analog display using pointers, or liquid crystal display elements and fluorescent display tubes that provide digital display using numbers, can be used on the driving circuit board. The main body of the instrument (not shown), such as a display that is operated by inputting an electric signal, is housed and fixed, and the front of the case 2 has a display that operates the display operation of the instrument body by inputting an electric signal according to the measured quantity. A front cover 3 having a see-through window is arranged so as to be visible,
The case 2 and the front cover 3 are integrally fixed by a predetermined locking means such as hook engagement or screw fastening.

Further, an FPC board 6 is disposed on the rear surface 4 of the case 2 by press-fitting and engaging a pin 5 provided upright on the rear surface 4.
A portion of the peripheral edge of the plate 6 is extended to the side surface 7 of the case 2 to form a bent portion 8, and this bent portion 8 is arranged and fixed to the side surface 7 with screws 9.

The FPC temporary 6 is routed from electrical equipment that supplies electrical signals according to the measured amount, such as a sensor for detecting one rotation of the vehicle, a sensor for detecting the remaining amount of liquid in the tank, a sensor for detecting engine exhaust temperature, etc., which are installed on the vehicle body side. A conductive part 11 is provided which is made of a predetermined circuit wiring pattern using fI foil etc.
and a terminal section 12 for operation check that is integrated into the bending section 8 and can supply an electrical signal for inspection to the instrument body independently of the on-vehicle electrical equipment. A meter body is connected to the conductive part 11 via a screw 13 made of a conductive material. The terminal portion 12 is provided.

The instrument device 1 having the above configuration is mounted and fixed in an installation panel 14 formed on the vehicle body side, which is a holding body for mounting and supporting, with bolts 15 via a mounting arm 16 protruding from the side of the case 2. Ru. Further, an opening 15 is formed in the upper part of the installation panel 14 opposite to the bent part 8 provided with the terminal part 12. After the instrumentation device 1 is installed and fixed, this opening 15 is usually closed to the cover 17. It is blocked at.

Therefore, after connecting the instrument device 1 to the electrical equipment on the vehicle body side and fixing it in the installation panel 14, malfunctions such as the instrument body not operating even though it is in the operating state, such as when the ignition switch is turned on, may occur. If this occurs, the electrical equipment.

Connector section 10, which is the wiring and connection point. It is necessary to inspect which of the instrumentation devices 1, etc. is the cause of the problem.In this instrumentation instrumentation device 1, by opening the cover 17 of the installation panel 14, the folded portion 8 corresponds to the opening 15.
Since the terminal section 12 is located in the terminal section 12, it is possible to check whether the instrument body is normal or abnormal by supplying an electrical signal for inspection with the inspection electrode through the opening 15 to the terminal section 12. , installation panel 14
This can be checked extremely easily without having to be removed from the body, and complicated attachment/detachment work can be avoided in advance during normal operation.

In addition, if the FPCPCO 2-wire pattern becomes complicated and the terminal portions 12 cannot be provided in a concentrated manner, a plurality of bent portions 8
It may be divided into two parts.

Furthermore, although the terminal section 12 for checking the FPCPCO2 operation is provided in the above embodiment, one end of the electrical cord 18 is connected to the FPCPCO2 electrical section 11 or the screw 13 for continuity of the meter body, and the other end is connected to the side surface 7 of the case 2. A terminal portion 19 may be provided by fixing the terminal portion 19 (see FIG. 3).

Note that the size and shape of the opening may be appropriately set as long as it allows insertion of a checking tool.

〔Effect of the invention〕

The present invention provides an F that is installed and fixed inside a holding body such as an installation panel formed on the vehicle body side, and that electrical signals from electrical equipment disposed on the vehicle body side are disposed on the rear surface of the case.
In a meter device that is supplied to the meter body in the case via a PC board, an operation check conductor conductive to a connection point between the meter body and the FPC board so as to supply an electrical signal for inspection to the meter body. A terminal part is provided on the side surface of the case, and an opening is formed in the holding body facing the terminal part, which makes it extremely easy to check the instrument body after it is assembled into the holding body. It is possible to provide an instrumentation device that can perform the following tasks.

[Brief explanation of the drawing]

It is a diagram. 1-Instrument device 2・-Case 2・-Rear surface 6-F P C plate 7・-Side surface
8-Bending part lt----Conductive part 12.19-・Terminal part 1
3-- Screw 14- Installation panel (holding body) 15...
-Opening 18-Electrical cord Figure 1

Claims (1)

[Claims] (1) An FPC that is installed and fixed inside a holding body such as an installation panel formed on the vehicle body side, and that receives electrical signals from electrical equipment installed on the vehicle body side, and is disposed on the rear surface of the case.
In a meter device that is supplied to the meter body in the case via a plate, an operation check terminal that is electrically connected to a connection point between the meter body and the FPC board so as to supply an electric signal for inspection to the meter body. An instrument device characterized in that a portion is provided on a side surface of the case, and an opening is formed in the holding body facing the terminal portion.