CN109203993B

CN109203993B - vehicle display device

Info

Publication number: CN109203993B
Application number: CN201810685219.8A
Authority: CN
Inventors: 望月靖文; 伊久美敬太; 大石博之
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2017-06-29
Filing date: 2018-06-28
Publication date: 2021-07-02
Anticipated expiration: 2038-06-28
Also published as: JP6663885B2; CN109203993A; JP2019011953A; DE102018209774A1

Abstract

The purpose is to provide a vehicle display device capable of appropriately emitting light from a light-emitting portion. The vehicle display device (1) is characterized by comprising a scale section (8) indicated by a pointer, wherein the scale section (8) comprises: a base material (80) that shields light of a component in the visible light range; a transparent scale section (82) in which a plurality of transparent scales (81) that transmit light in the visible light range component and are transparent are integrally formed, the plurality of transparent scales (81) being arranged in parallel at intervals along the rotation trajectory direction (R) of the pointer and being exposed from the base material (80); a colored scale (83) which transmits and colors light in a visible light range component, is arranged in parallel with the transparent scale section (82) at a distance in the rotation locus direction R, and is exposed from the base material (80); and a slit portion (84) which is present between the transparent scale portion (82) and the colored scale (83) with respect to the rotational locus direction R.

Description

Vehicle display device

Technical Field

The present invention relates to a vehicle display device.

Background

As a technique related to a conventional vehicle display device applied to a vehicle, for example, patent document 1 discloses a three-dimensional design portion structure of a vehicle instrument, which is characterized by including a dial, a light guide, a three-dimensional design portion, a concave portion, and color printing. The light guide is disposed on the back side of the dial plate, and light from the light source is incident from the proximal end side. The three-dimensional design portion is provided at the distal end side of the light guide body and protrudes from a through hole formed in the character plate. The concave portion is formed on the back surface of the light guide body on the side opposite to the character plate so as to surround the three-dimensional design portion. The rear surface of the light guide body includes a concave portion so as to surround the three-dimensional design portion, and color printing is performed.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2014-178279

Disclosure of Invention

Problems to be solved by the invention

However, the three-dimensional design portion structure of the vehicle instrument described in patent document 1 is provided with a plurality of three-dimensional design portions in some cases, for example, and several of them are colored. In such a case, the three-dimensional design structure has room for further improvement in order to allow both the colored light-emitting portion and the non-colored light-emitting portion to emit light more appropriately.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicle display device capable of appropriately emitting light from a light-emitting portion.

Means for solving the problems

In order to achieve the above object, a vehicle display device according to the present invention includes: a pointer that rotates about a rotation axis as a rotation center; a scale section that is indicated by the pointer, the scale section including: a base material that blocks light of a component in a visible light range; a transparent scale section integrally formed with a plurality of transparent scales that transmit light in a visible light range component and are transparent, the plurality of transparent scales being arranged in parallel at intervals along a rotation trajectory direction of the pointer and being exposed from the base material; colored scale marks which are colored by transmitting light of a visible light range component, are arranged in parallel with the transparent scale mark portion along the rotation trajectory direction at intervals, and are exposed from the base material; and a slit portion existing between the transparent scale portion and the colored scale with respect to the rotational locus direction.

ADVANTAGEOUS EFFECTS OF INVENTION

The vehicle display device according to the present invention displays a measurement value related to a vehicle by indicating a scale portion with a pointer. Here, the scale section includes a transparent scale section in which a plurality of transparent scales are integrally formed, and a colored scale. The scale section is formed by arranging a plurality of transparent scales in parallel with a gap in the direction of the rotation locus of the pointer and exposing the transparent scales from the base material, and by arranging colored scales in parallel with the transparent scale section with a gap in the direction of the rotation locus and exposing the colored scales from the base material. In such a configuration, since the slit portion is provided between the transparent scale portion and the colored scale with respect to the rotation locus direction, the transparent scale and the colored scale can be displayed by emitting light with appropriate light colors without affecting the respective light colors. The results obtained are: the vehicle display device can make the light-emitting portion emit light appropriately.

Drawings

Fig. 1 is a front view showing a schematic configuration of a vehicle display device according to an embodiment.

Fig. 2 is a partial perspective view showing a schematic configuration of the vehicle display device according to the embodiment.

Fig. 3 is a partial cross-sectional view (a cross-sectional view a-a shown in fig. 1) showing a schematic configuration of the vehicle display device according to the embodiment.

Description of the indicia

1: vehicle display device

7: pointer with a movable finger

8: scale division

80: base material

81: transparent scale

82: transparent scale section

83: colored scale

84: slit part

C: axis of rotation

R: direction of rotation track

Detailed Description

Embodiments according to the present invention will be described in detail below with reference to the drawings. The present invention is not limited to the present embodiment. The components in the following embodiments include components that can be easily replaced by those skilled in the art, or substantially the same components.

[ embodiment ]

The vehicle display device 1 according to the present embodiment shown in fig. 1 constitutes a so-called in-vehicle instrument. The vehicle display device 1 is mounted on, for example, an instrument panel provided in an instrument panel of a vehicle, and displays various information related to the vehicle as information for driving the vehicle.

The depth direction X as the 1 st direction of the vehicle display device 1 shown in fig. 1 typically corresponds to the front-rear direction of a vehicle to which the vehicle display device 1 is applied. Here, the depth direction X also corresponds to an axial direction along the rotation axis C constituting the rotation center of the pointer 7. The front surface side of the vehicle display device 1 is a side facing the driver's seat of the vehicle in the depth direction X, and is typically a side visible to the driver seated in the driver's seat. Further, the front surface side in the depth direction X of the vehicle display device 1 is the side where the visual position EP (see fig. 3) is located. Here, the visual position EP is typically assumed to be located in a so-called eye range of the vehicle to which the vehicle display device 1 is applied. Here, the eye range is "the driver's eye range of the automobile" and corresponds to an area where the driver's sight line predetermined by the vehicle is located. The eye range typically statistically represents a distribution of positions of the eyes of the driver in the vehicle, for example, an area corresponding to a position containing a predetermined proportion (for example, 95%) of the eyes of the driver in a state where the driver is seated in the driver's seat. On the other hand, the rear surface side of the vehicle display device 1 is opposite to the front surface side in the depth direction X, and is typically accommodated on the inner side of the instrument panel. The width direction Y in the 2 nd direction of the vehicle display device 1 typically corresponds to the vehicle width direction of a vehicle to which the vehicle display device 1 is applied. In the following description, in the width direction Y of the vehicle display device 1, the left side (left side in fig. 1) is sometimes referred to as the left side in the width direction Y toward the front surface of the vehicle display device 1, and the right side (right side in fig. 1) is sometimes referred to as the right side in the width direction Y. The height direction Z in the 3 rd direction of the vehicle display device 1 typically corresponds to the vehicle height direction of a vehicle to which the vehicle display device 1 is applied, and is, for example, a direction along the vertical direction in a state where the vehicle is located on a horizontal plane. The following description will be given of the respective directions in a state where the respective components of the vehicle display device 1 are assembled with each other and the vehicle display device 1 is assembled to the instrument panel, unless otherwise specified.

The vehicle display device 1 of the present embodiment includes, for example, a speedometer 2, a tachometer 3, an image display unit 4, a direction indication display unit 5, and the like as display units for displaying vehicle-related information. Speedometer 2 displays the vehicle speed. The tachometer 3 displays the output rotation speed of the power source for running. The image display unit 4 displays image information. The direction indicator display unit 5 displays an operation state of a direction indicator (direction indicator lamp) of the vehicle. The vehicle display device 1 includes a housing 6 that houses each unit, and a speedometer 2, a tachometer 3, an image display unit 4, a direction indicator display unit 5, and the like are disposed in the housing 6, and a display surface of various information is exposed on the front surface side in the depth direction X, that is, on the visual position EP side. In the vehicle display device 1, the speedometer 2 is disposed on the right side in the width direction Y, the tachometer 3 is disposed on the left side in the width direction Y, and the image display unit 4 and the direction indicator display unit 5 are disposed therebetween, in the housing 6.

The speedometer 2 and the tachometer 3 are analog instruments for a vehicle that indicate a vehicle speed and an output speed, which are measured values related to the vehicle, by the hands 7. The speedometer 2 and the tachometer 3 include a pointer 7 and a scale 8, respectively. The pointer 7 is formed in a rod shape, and rotates about a rotation axis C along the depth direction (axial direction) X as a rotation center. The scale 8 is an indicator indicated by the pointer 7. In the speedometer 2 and the tachometer 3, a drive motor provided in the housing 6 rotates and drives the indicating needle 7 to indicate a predetermined position of the scale section 8, and the vehicle speed and the output rotational speed are displayed as measured values relating to the vehicle. For example, a thin liquid crystal display, a plasma display, an organic EL display, or the like can be used as the image display unit 4. The image display unit 4 displays, as the vehicle-related information, images of various driving-related driving information that changes every moment when the vehicle is driven, such as an integrated travel distance, a cooling water temperature, a remaining fuel level, a battery charge amount, navigation information, map information, various warning lamps (warning lamps, so-called indicators), and a shift indicator. The direction indicator display unit 5 switches between display and non-display of the design pattern light-transmitting portion indicating the shape of each of the left and right arrows in accordance with turning on and off of the light source 13, and displays the operating state of the direction indicator of the vehicle.

As shown in fig. 2 and 3, the vehicle display device 1 according to the present embodiment is configured such that the scale section 8 includes the transparent scale 81 and the colored scale 83, and a predetermined shape is added between these, thereby realizing a configuration in which the light-emitting portions of both the transparent scale 81 and the colored scale 83 are appropriately displayed in a light-emitting manner. Here, the colored scale 83 is colored red and is provided in a position indicating a predetermined speed (a position indicating "50 km/h" in the example of fig. 1) in the scale section 8 of the speedometer 2. Next, the structure of the vehicle display device 1 will be described in detail with reference to the drawings.

As shown in fig. 1, 2, and 3, the vehicle display device 1 further includes: a character board 9, a pressing member 10, a light source 11 (shown by a broken line in fig. 1), and a light guide 12. The vehicle display device 1 is structured such that the frame 6, the light guide 12, the character plate 9, and the pressing member 10 are stacked in this order from the back side toward the front side in the depth direction X. The vehicle display device 1 may further include a so-called flange plate, a transparent cover (front glass), and the like on the front surface side in the depth direction X of the pressing member 10. The vehicle display device 1 holds the light source 11 and the light guide 12 in the housing 6. The frame 6 is made of, for example, an insulating resin material. The housing 6 may be formed by combining a plurality of members, for example. The housing 6 houses the components constituting the speedometer 2, the tachometer 3, the image display unit 4, and the direction indicator display unit 5, such as the light source 11 and the light guide 12, in a space defined therein. The housing 6 exposes the display surfaces of various information such as the speedometer 2, the tachometer 3, the image display unit 4, and the direction indicator display unit 5 on the front surface side in the depth direction X, that is, the visual position EP side, through the opening and the like.

The character plate 9 is a plate-shaped member formed in a plate-like shape in which the depth direction X is the plate thickness direction, and on which various scales, patterns, symbols, characters, decorations, and the like are drawn in accordance with information related to the vehicle displayed on the vehicle display device 1. The dash panel 9 is a design member that is exposed on the front surface side in the depth direction X, i.e., on the side of the visual position EP in the vehicle display device 1 and is likely to enter a portion including the visual field of the driver's occupant. The character plates 9 may be provided individually corresponding to the display surfaces of the speedometer 2, tachometer 3, image display unit 4, and direction indicator display unit 5, or may be provided integrally. The character plate 9 is provided on the visual position EP side of the housing 6, and is held by being sandwiched between the housing 6 and the pressing member 10 with respect to the depth direction X. The character plate 9 constitutes a display surface on which various scales, patterns, marks, characters, decorations, and the like are drawn, and which is exposed from the pressing member 10 on the side of the visual position EP to display various information. The pointer 7 is located on the front surface side of the dial 9 with respect to the depth direction X, i.e., on the visual position EP side. The character plate 9 is printed with a light-shielding dark ink in a hollow-out shape corresponding to the scale, pattern, symbol, character, decoration, and the like on a substrate of a light-transmitting material, for example, a polycarbonate sheet, which transmits and diffuses light of at least a component in the visible light range. With this configuration, the dial 9 is drawn with the scale, pattern, mark, character, decoration, and the like. Here, the light of the visible light range component is light of a wavelength component in the visible light range that can be seen by a human, and is, for example, light of a component having a wavelength in a range of 360 to 830 nm. The character plate 9 irradiates light from a light source (a light source different from the light source 11) on the back side in the depth direction X, the irradiated light is transmitted through a portion where the scale, the pattern, the symbol, the character, the decoration, and the like are drawn, and the scale, the pattern, the symbol, the character, the decoration, and the like are lighted and displayed. The dial 9 is not provided with dark ink having light-shielding properties in a region located between the light guide 12 and the scale portion 8, which will be described later, with respect to the depth direction X, and this region constitutes a light diffusion region 9a through which light is transmitted and diffused.

The pressing member 10 covers an end portion of the character plate 9 and the like from the front surface side in the depth direction X, and sandwiches and holds the character plate 9 with the housing 6. The pressing member 10 is made of, for example, an insulating resin material. The pressing member 10 is assembled to the housing 6 with the character plate 9 interposed between the pressing member and the housing 6, with the display surface of various information such as the speedometer 2, the tachometer 3, the image display unit 4, and the direction indicator display unit 5 exposed on the front surface side in the depth direction X, that is, the visual position EP side. Here, the pressing member 10 is shown as being provided separately on the speedometer 2 side and the tachometer 3 side, for example, but is not limited thereto, and these may be provided integrally. The pressing member 10 is integrally formed with, for example, a substantially circular decorative ring 14 surrounding each display surface of the speedometer 2 and the tachometer 3.

The light source 11 is used to emit light from the scale 8. The Light source 11 is formed of, for example, an LED (Light Emitting Diode) element, but is not limited thereto. Here, the light source 11 irradiates white light. The light source 11 is provided on the back surface side of the dial 9, which is the opposite side of the dial 9 from the pointer 7 side with respect to the depth direction X. The light source 11 is mounted on the substrate 13 and is drive-controlled. The light source 11 is accommodated in the frame 6 together with the substrate 13. The light source 11 irradiates light including a visible light range component to the front surface side in the depth direction X. That is, here, the light irradiation direction of the light source 11, in other words, the optical axis direction of the light source 11 is a direction along the depth direction X. Here, the light source 11 is provided in plural at intervals along an annular shape centered on the rotation axis C with respect to each scale portion 8 of the speedometer 2 and the tachometer 3.

The light guide 12 constitutes an optical system that receives light of a visible light range component emitted from the light source 11, and guides and emits the light toward the scale portion 8. The light guide 12 is made of a material that transmits light of a visible light range component. The light guide 12 is made of a light-transmitting resin material such as acrylic resin, and is also called a prism. The light guide 12 is formed in a substantially flat plate shape having a depth direction X in a plate thickness direction. The light guide 12 is provided on the front surface side of the light source 11 and on the back surface side of the character plate 9 with respect to the depth direction X. The light guide 12 is located at a position facing the light source 11 and the dial 9 in the depth direction X. The light guide 12 receives light of a visible light range component emitted from the light source 11 on the back side in the depth direction X, guides the received light to the front side in the depth direction X, and emits the received light to the front side in the depth direction X, that is, the visual position EP side, and further, the scale portion 8 side. The light guide 12 is held in the housing 6 in a positional relationship facing the light source 11 and the dial 9 with respect to the depth direction X. In a state where the light guide 12 is held by the housing 6, it is positioned at a position spaced apart from the dial plate 9 with respect to the depth direction (axial direction) X, thereby ensuring an air layer between the dial plate 9 and the light guide 12.

The scale portion 8 of the present embodiment is formed integrally with the decorative ring 14 of the pressing member 10. Specifically, the scale section 8 of the present embodiment includes a base member 80, a transparent scale section 82 in which a plurality of transparent scales 81 are integrally formed, a colored scale 83, and a slit section 84.

The base material 80 is formed of a resin material having light-shielding properties for shielding light in the visible light range. The base member 80 is formed in a substantially annular shape centered on the rotation axis C and along the rotation locus direction R of the tip end of the pointer 7, and constitutes a main portion of the decoration ring 14.

The transparent scale 81 is made of a transparent resin material that transmits light in the visible range. The transparent scale 81 constitutes one of the scales of the scale section 8. The plurality of transparent scales 81 are integrally formed to constitute a transparent scale portion 82. Transparent scale section 82 is formed integrally with a plurality of transparent scales 81 via coupling section 85. In the example of fig. 3, 4 transparent scales 81 of the scale section 8 are connected via a connecting section 85 to constitute 1 transparent scale section 82. The transparent scale portion 82 is arranged in parallel with the plurality of transparent scales 81 at intervals along the rotational locus direction R, and is exposed from the front surface side in the depth direction X of the base 80, that is, the visual position EP side. The portion of each transparent scale 81 exposed from the base material 80 is formed in an approximately rectangular shape extending in a direction toward the rotation axis C. In other words, the plurality of transparent scales 81 are arranged substantially radially with the rotation axis C as a center. The transparent scale section 82 has a part of the base material 80 between the transparent scales 81 with respect to the rotation locus direction R, and thus the transparent scales 81 are independently exposed from the base material 80. In the transparent scale section 82, the coupling section 85 is positioned on the back side in the depth direction X of the substrate 80 in a state where the plurality of transparent scales 81 are exposed from the substrate 80, and is provided at a position where the coupling section cannot be viewed from the viewing position EP.

The colored scale 83 is made of a resin material which transmits light in the visible range and is colored. The colored scale 83 sets a luminescent color by a colored color. Here, the colored scale 83 is colored red and emits red light. The colored scale 83 constitutes one of the scales of the scale section 8. The colored scale 83 and the transparent scale portion 81 are arranged in parallel with a space in the rotational locus direction R, and are exposed from the front surface side in the depth direction X of the base 80, that is, the visual position EP side. That is, the colored scale 83 is arranged in parallel with the plurality of transparent scales 81 constituting the transparent scale section 82 at intervals along the rotation locus direction R. The portion of the colored scale 83 exposed from the base material 80 is formed in an approximately rectangular shape extending in a direction toward the rotation axis C. In other words, the colored scale 83 is provided in a substantially radial shape around the rotation axis C in correspondence with the plurality of transparent scales 81. Here, the colored scale 83 is formed in a substantially rectangular shape larger than the transparent scale 81, and a part of the rotation axis C side extends to the inclined surface formed by the base material 80. The colored scale 83 is exposed from the base material 80 independently of the transparent scales 81 by the presence of a part of the base material 80 between the transparent scale sections 82 on both sides with respect to the rotational locus direction R.

The slit portion 84 is provided so as to exist between the transparent scale portion 82 and the colored scale 83 with respect to the rotational locus direction R. The slit portion 84 is located on the back side of the substrate 80 in the depth direction X, and is provided so as to cut the transparent scale portion 82 and the edge of the colored scale 83 with respect to the rotation locus direction R. The slit portions 84 are provided on both sides of the colored scale 83 with respect to the rotational locus direction R, and are provided so as to cut the transparent scale portions 82 on both sides of the colored scale 83 in the rotational locus direction R from the edges. The slit portion 84 extends to the base material 80 along the depth direction X.

The scale portion 8 configured as described above is first molded in 2 colors with the transparent scale portion 82 and the colored scale 83, for example. At this time, the scale portion 8 has a part of the molding die between the transparent scale portion 82 and the colored scale 83 with respect to the rotation locus direction R, and each slit portion 84 is formed. Thereafter, the scale portion 8 is insert-molded in a state where the transparent scale portion 82 and the colored scale 83 are integrally incorporated in the pressing member 10 including the base member 80, and the entire structure is molded.

In the vehicle display device 1 configured as described above, the light of the visible light range component irradiated from the light source 11 is incident on the surface on the back side in the depth direction X of the light guide 12, is guided to the front surface side in the depth direction X in the light guide 12, and is emitted from the front surface side in the depth direction X toward the front surface side in the depth direction X. In the vehicle display device 1, light emitted from the light guide 12 toward the front surface side in the depth direction X is diffused by the light diffusion region 9a of the dial 9, and the diffused light is incident on the back surfaces in the depth direction X of the transparent scale portion 82 and the colored scale 83 of the scale portion 8. In the vehicle display device 1, the light incident on the transparent scale portion 82 and the colored scale 83 is emitted from the front surface side in the depth direction X of the transparent scale 81 and the colored scale 83 toward the viewing position EP. As a result, the vehicle display device 1 can display both the transparent scale 81 and the colored scale 83 as light-emitting portions by using the light of the visible light range component irradiated from the light source 11. At this time, both the transparent scale 81 and the colored scale 83 emit light in the respective emission colors, that is, the transparent scale 81 emits light in white and the colored scale 83 emits light in red.

The vehicle display device 1 described above displays the measured value relating to the vehicle by indicating the scale section 8 with the pointer 7. Here, the scale section 8 includes a transparent scale section 82 in which a plurality of transparent scales 81 are integrally formed, and a colored scale 83. In the transparent scale section 82 of the scale section 8, a plurality of transparent scales 81 are arranged in parallel with a space in the rotation track direction R of the pointer 7 and exposed from the base 80, and the colored scales 83 are arranged in parallel with the transparent scale section 82 with a space in the rotation track direction R and exposed from the base 80. In such a configuration, since the scale section 8 has the slit portion 84 between the transparent scale section 82 and the colored scale 83 with respect to the rotational locus direction R, both the transparent scale 81 and the colored scale 83 can be displayed by emitting light with an appropriate emission color without affecting the emission colors of the both. That is, the scale section 8 can be configured such that a part of the colored scale 83 is prevented from being reflected on the transparent scale 81 side by providing the slit section 84, in other words, a line of sight from the visual position EP side is difficult to reach the colored scale 83 beyond the transparent scale 81. In the vehicle display device 1, when the transparent scale portion 82 and the colored scale 83 are molded, a part of the mold is present in a portion which becomes the slit portion 84 between the transparent scale portion 82 and the colored scale 83, and thus the transparent scale portion 82 and the colored scale 83 can be reliably prevented from being mixed. In this regard, both the transparent scale 81 and the colored scale 83 of the vehicle display device 1 can be displayed by emitting light with appropriate emission colors without affecting the emission colors of the respective scales. As a result, the vehicle display device 1 can appropriately emit light from the light-emitting portion, i.e., the luminance portion 8.

The vehicle display device according to the embodiment of the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims.

In the above description, the colored scale 83 is colored red and is provided at the position indicating "50 km/h" in the scale portion 8 of the speedometer 2, but the present invention is not limited thereto, and for example, the colored scale may be colored in another color.

Claims

1. A vehicle display device, characterized by comprising:

a pointer that rotates about a rotation axis as a rotation center;

a scale section indicated by the pointer,

the scale section has:

a base material that blocks light of a component in a visible light range;

a transparent scale section integrally formed with a plurality of transparent scales that transmit light in a visible light range component and are transparent, the plurality of transparent scales being arranged in parallel at intervals along a rotation trajectory direction of the pointer and being exposed from the base material;

colored scale marks which are colored by transmitting light of a visible light range component, are arranged in parallel with the transparent scale mark portion along the rotation trajectory direction at intervals, and are exposed from the base material; and

a slit portion existing between the transparent scale portion and the colored scale with respect to the rotational locus direction,

the slit portion is located on a back surface side opposite to a visual position side in a depth direction of the base material and extends to the base material along the depth direction,

the scale section is irradiated with light from a light source on the back side in the depth direction, and the transparent scale and the colored scale emit light by the irradiated light.