JP2011017583A - Pointer type instrument device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pointer type instrument device having superior assemblability, capable of brightening the pointer.SOLUTION: A display panel 2 displays vehicle information. The pointer 4 is provided on the front side of the display panel 2. A light emitting element 5 illuminates the pointer 4. A circuit board 7 mounts a driving circuit for driving the light emitting element 5. One end of a first wiring member 9a is connected to the light emitting element 5, and the other end thereof is provided with a first connection part 12a. One end of a second wiring member 9b is connected to the circuit board 7, and the other end thereof is provided with a second connection part 12b. The first connection part 12a and the second connection part 12b are electrically connected together. The first connection part 12a and the second connection part 12b are press-bonded together with a screw 10. A conductive adhesive 11 is disposed between the first connection part 12a and the second connection part 12b.

Description

  The present invention relates to a pointer-type instrument device having a display panel for displaying vehicle information.

  Conventionally, various instrument devices including a display panel such as a liquid crystal display panel have been proposed, and for example, disclosed in Patent Document 1. In such an instrument device, a decorative ring made of a translucent material is disposed on the front side of a liquid crystal display panel, and the decorative ring is transmitted and illuminated by light emitted from the screen of the liquid crystal display panel. In this instrument device, since the decorative ring protrudes to the vehicle driver side from the screen of the liquid crystal display panel, the screen of the liquid crystal display panel is viewed three-dimensionally, the three-dimensional effect is emphasized, and a novel appearance is obtained. A pointer-type instrument device that includes a display panel and rotates a pointer based on predetermined information is proposed and disclosed in Patent Document 2. In such a pointer-type instrument device, it is desired to improve the design by shining the pointer.

JP 2006-201038 A German Patent Application No. 10331131

However, the wiring for supplying power to the light-emitting element that illuminates the pointer needs to be routed from the circuit board on which the drive circuit is mounted to the light-emitting element across a member such as a display panel, and the assembly is not always good Had the problem.
The present invention has been made in view of this problem, and provides a pointer-type instrument device that can make a pointer shine and that has good assemblability.

  The present invention is a pointer-type instrument device 1 having a display panel 2 for displaying vehicle information and a pointer 4 provided on the front side of the display panel 2, and a light emitting element 5 for illuminating the pointer 4. A circuit board 7 on which a drive circuit for driving the light emitting element 5 is mounted, and a first wiring member 9a having one end connected to the light emitting element 5 and the first connecting portions 12a and 14b provided at the other end. And a second wiring member 9b having one end connected to the circuit board 7 and the other end provided with second connection portions 12b and 14a, and the first connection portions 12a and 14b and the second connection The parts 12b and 14a are electrically connected.

  In the present invention, the first connecting portions 12a and 14b and the second connecting portions 12b and 14a are pressure-bonded by a screw 10.

  In the present invention, the conductive adhesive 11 is disposed between the first connection portions 12a and 14b and the second connection portions 12b and 14a.

  Further, in the present invention, the first connection portion 14b is formed of a secondary coil, and the second connection portion 14a is formed of a primary coil facing the secondary coil.

  The light emitting element can shine the pointer, and the first connection member and the second connection member can be electrically connected to each other at the first connection portion and the second connection portion. It is.

The front view which shows embodiment of this invention. Sectional drawing which shows embodiment same as the above. The disassembled perspective view which shows embodiment same as the above. The disassembled perspective view which shows 2nd embodiment of this invention. The front view which shows other embodiment of this invention.

Hereinafter, a pointer-type instrument device 1 according to an embodiment of the present invention will be described with reference to the accompanying drawings. 1 to 3 show a first embodiment.
The pointer-type instrument device 1 includes a combination meter mounted on a dashboard of a vehicle, and includes a liquid crystal display panel 2, a support plate 3, pointers 4, a light emitting element 5, a pointer driving mechanism 6, a circuit board 7, and the like. Has been.

  The liquid crystal display panel 2 is composed of, for example, a TFT type liquid crystal display, and displays a scale 2a, numbers 2b, and various vehicle information (outside temperature information, travel distance information, fuel consumption information, navigation information, traffic information). . The support plate 3 is made of a translucent resin and is disposed on the front side of the liquid crystal display panel 2 to support a first wiring member to be described later. The pointer 4 is rotated by the pointer driving mechanism 6 to indicate the scale 2a and the number 2b displayed on the liquid crystal display panel 2. The light emitting element 5 is made of a light emitting diode and shines the pointer 3.

  The pointer drive mechanism 6 includes a pointer drive motor 6a, a first magnet 6b, and a second magnet 6c, and rotates the pointer 4 by a magnetic coupling method. The pointer drive motor 6 a has a rotation shaft and is mounted on the circuit board 7. The first magnet 6b is mounted on the rotation shaft of the pointer drive motor 6a and rotates together with the rotation shaft of the pointer drive motor 6a. The second magnet 6c is attached to the pointer shaft, is magnetically coupled to the first magnet 6b, and rotates together with the first magnet 6b. A drive circuit for driving the light emitting element 5 is mounted on the circuit board 7.

  The display panel 2 and the circuit board 7 are fixed to the support 8. The wiring member 9 is made of FPC (Flexible Printed Circuit), and has a first wiring member 9a and a second wiring member 9b. The light emitting element 5 is mounted on one end of the first wiring member 9a, and the pointer 4 can be illuminated by energizing the light emitting element 5. A first connection portion 12a made of a copper foil land is provided at the other end of the first wiring member 9a. One end of the second wiring member 9b is electrically connected to the circuit board 7. A second connection portion 12b made of a copper foil land is provided at the other end of the second wiring member 9b. The connection part 12 consists of a first connection part 12a and a second connection part 12b.

  The screw 10 fastens the support plate 3 and the support body 8 by tightening, and press-bonds the first connection portion 12a and the second connection portion 12b to the conductive adhesive 11 to enhance conductivity. The conductive adhesive 11 is made of a mixture of a resin responsible for fixation and a metal responsible for conductivity (conductive filler), and is disposed between the first connection portion 12a and the second connection portion 12b. Fixing the first connecting portion 12a and the second connecting portion 12b by the screw 10 and securing the conductivity are assisted.

FIG. 4 is a diagram showing a second embodiment. The second embodiment is different only in the connecting portion 14, and the other configuration is the same as that of the first embodiment.
The light emitting element 5 is mounted on one end portion of the first wiring member 9a, and a first connection portion 14b made of a secondary coil is provided on the other end portion of the first wiring member 9a. One end of the second wiring member 9b is electrically connected to the circuit board 7, and a second connection portion 14a made of a primary coil is provided at the other end of the second wiring member 9b. The connection part 14 consists of the 1st connection part 14b and the 2nd connection part 14a arrange | positioned facing this 1st connection part 14b. The spacer 13 is inserted between the support plate 3 and the support 8 and is fixed by a screw 10.

  According to the first and second embodiments, the circuit board 7 and the light emitting element 5 are electrically connected by the connection portions 12 and 14 provided in the wiring member 9, and the pointer 4 is made to shine by the light emitting element 5. Can do. In addition, this invention is not limited to 1st, 2nd embodiment, A various deformation | transformation is possible, for example, like other embodiment shown in FIG. 5, the 1st wiring member 9a is upper part. You may arrange | position so that it may detour from.

DESCRIPTION OF SYMBOLS 1 Pointer type instrument apparatus 2 Display panel 4 Pointer 5 Light emitting element 7 Circuit board 9a 1st wiring member 9b 2nd wiring member 10 Screw 10
12a 1st connection part 12b 2nd connection part 14b 1st connection part 14a 2nd connection part

Claims (4)

A pointer-type instrument device comprising a display panel for displaying vehicle information, and a pointer provided on the front side of the display panel,
A light-emitting element that illuminates the pointer, a circuit board on which a drive circuit that drives the light-emitting element is mounted, and a first wiring member that has one end connected to the light-emitting element and the other end provided with a first connection part And a second wiring member having one end connected to the circuit board and the other end provided with a second connecting portion, and electrically connecting the first connecting portion and the second connecting portion. A pointer-type instrument device characterized by comprising:   The pointer-type instrument device according to claim 1, wherein the first connection portion and the second connection portion are pressure-bonded with screws.   The pointer-type instrument device according to claim 1, wherein a conductive adhesive is disposed between the first connection portion and the second connection portion.   2. The pointer-type instrument device according to claim 1, wherein the first connection portion includes a secondary coil, and the second connection portion includes a primary coil opposed to the secondary coil.

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