Motorcycle instrument capable of efficiently guiding light

Abstract

The invention discloses an efficient light guide motorcycle instrument which comprises an instrument body and a backlight assembly, the instrument body comprises a display screen, an upper cover, a bottom shell and display glass, and the backlight assembly and the display screen are arranged in the bottom shell through mounting structures; the backlight assembly comprises a dodging piece, a light guide plate, a light guide plate support and a PCB which are sequentially arranged below the display screen, one end of the light guide plate is an arc-shaped light guide end extending towards the light guide plate support, the light guide end is located outside the light guide plate support, and a backlight source capable of directly irradiating the light guide end is arranged on the PCB. The backlight source directly irradiates on the special light guide plate, the light can be spread on the whole light guide plate through refraction and reflection, then the light irradiated on the display screen is uniform under the action of the uniform light sheet, so that the uniformity of backlight is ensured, and meanwhile, only one row of backlight sources capable of irradiating on the end face of the light guide end is arranged, so that the whole energy consumption is low.

Description

Technical Field

[0001] The invention belongs to the technical field of motorcycle instruments, and in particular relates to a motorcycle instrument with high-efficiency light guidance. Background Art

[0002] In order to provide the rider with the operating parameters of the motorcycle, the motorcycle is equipped with instruments, which include mechanical instruments and electronic instruments. Electronic instruments are gradually replacing mechanical instruments because they are more direct. At present, common electronic instruments all display data through a display screen, and a backlight source is set under the display screen. The backlight source is a cold light sheet that can convert electrical energy into light energy. This method is prone to uneven backlighting, and because the entire cold light sheet needs to be illuminated, the overall energy consumption is high. Summary of the invention

[0003] The present invention proposes a motorcycle instrument with high efficiency light guide, which can not only ensure uniform backlight but also reduce energy consumption.

[0004] To this end, the technical solution adopted by the present invention is: a motorcycle instrument with high efficiency of light guidance, including an instrument body and a backlight assembly, the backlight assembly is arranged in the instrument body, the instrument body includes a display screen for displaying data, the instrument body includes an upper cover and a bottom shell arranged up and down, the upper cover is provided with a display glass for displaying on the display screen, the backlight assembly and the display screen are both arranged in the bottom shell through a mounting structure; the backlight assembly includes a PCB board, a light guide plate, a light guide plate support and a light homogenizer, the light homogenizer, the light guide plate, the light guide plate support and the PCB board are arranged in sequence below the display screen, one end of the light guide plate is an arc-shaped light guide end extending toward the light guide plate support, and the light guide end is located outside the light guide plate support, and the PCB board is provided with a backlight light source that can directly irradiate the light guide end.

[0005] As a preferred embodiment of the above solution, a multi-layer step sealing structure is adopted between the upper cover and the bottom shell, and a sealing ring is provided on the inner layer.

[0006] Further preferably, the mounting structure includes a supporting member arranged in the bottom shell, the supporting member is provided with a cavity in a rectangular shape for supporting and mounting the display screen, the light homogenizer, the light guide plate, and the light guide plate, and limiting columns for limiting the upward movement of the display screen are arranged on the four sides of the cavity, and the PCB board is arranged on the supporting member and is located at the lower end of the cavity.

[0007] Further preferably, the light homogenizing sheet is provided with a light homogenizing positioning hole for installing the light homogenizing sheet, and the support is provided with a light homogenizing positioning column capable of passing through the light homogenizing positioning hole.

[0008] Further preferably, a positioning block is provided on the light guide plate support, and a positioning groove corresponding to the positioning block is provided on the support member.

[0009] Further preferably, a menu button and a setting button for adjusting display content are arranged outside the instrument body.

[0010] Further preferably, a ventilation hole is provided below the bottom shell, and a waterproof breathable membrane is provided in the ventilation hole to prevent water from entering.

[0011] Further preferably, the light guide plate is made of PMMA.

[0012] Further preferably, the thickness of the light guide plate gradually decreases from one side of the light guide end to the other side.

[0013] The beneficial effects of the present invention are as follows: the backlight source directly shines on the light guide end, and then the light is refracted and reflected in the light guide plate. Since the light guide plate is provided with an arc-shaped light guide end, the light can cover the entire light guide plate, and then under the action of the light uniforming sheet, the light irradiated onto the display screen is ensured to be uniform, thereby ensuring the uniformity of the backlight. At the same time, only one row of backlight sources that can shine on the end face of the light guide end is provided, so that the overall energy consumption is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional schematic diagram of the present invention Figure 1 .

[0015] Figure 2 A three-dimensional schematic diagram of the present invention Figure 2 .

[0016] Figure 3 For the purpose of illustrating the present invention Figure 1 .

[0017] Figure 4 For the purpose of illustrating the present invention Figure 2 .

[0018] Figure 5 It is a schematic diagram of the upper cover in the present invention.

[0019] Figure 6 Schematic diagram of the bottom shell of the present invention.

[0020] Figure 7 It is a schematic diagram of the support member in the present invention.

[0021] Figure 8 is a schematic diagram of a backlight assembly in the present invention.

[0022] Figure numerals: display screen-1, upper cover-2, inner layer groove-2a, middle layer protrusion-2b, matching protrusion-2c, bottom shell-3, inner layer protrusion-3a, outer layer protrusion-3b, middle layer groove-3c, support positioning column-3d, display glass-4, PCB board-5, positioning notch-5a, light guide plate-6, light guide end-6a, light guide plate support-7, positioning block-7a, light homogenizing plate-8, light homogenizing positioning hole-8a, sealing ring-9, support member-10, limiting column-10a, positioning column-10b, support positioning hole-10c, light homogenizing positioning column-10d, positioning groove-10e, menu button-11, setting button-12, waterproof breathable membrane-13, waterproof connector-14. DETAILED DESCRIPTION

[0023] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0024] like Figure 1-Figure 8 As shown, a highly efficient light-guiding motorcycle instrument is mainly composed of an instrument body and a backlight assembly, wherein the instrument body includes a display screen 1, an upper cover 2 and a bottom shell 3, the display screen 1 is used to display operating parameters, the upper cover 2 and the bottom shell 3 are arranged up and down, and the backlight assembly and the display screen 1 are both arranged in the bottom shell 3 through a mounting structure, and a display glass 4 for displaying the display screen is arranged on the upper cover 2, and the display glass is glass silk-screen.

[0025] The backlight assembly includes a PCB board 5, a light guide plate 6, a light guide plate support 7 and a light homogenizer 8, and the light homogenizer 8, the light guide plate 6, the light guide plate support 7 and the PCB board 5 are arranged in sequence below the display screen 1, and one end of the light guide plate 6 is set as an arc-shaped light guide end 6a extending toward the light guide plate support 7, and the light guide end 6a is located outside the light guide plate support 7. At the same time, a backlight light source that can directly illuminate the light guide end 6a is arranged on the PCB board 5. Preferably, the backlight light source is an LED lamp.

[0026] The backlight source directly shines on the light guide end, and then the light is refracted and reflected in the light guide plate. Since the light guide plate is provided with an arc-shaped light guide end, the light can cover the entire light guide plate. Finally, under the action of the light uniformity sheet, the light projected onto the display screen is guaranteed to be uniform.

[0027] To reduce the loss of light energy, the thickness of the light guide plate 6 gradually decreases from one side of the light guide end to the other side. Preferably, the light guide end is arranged at the front side. To facilitate the processing of the light guide plate, the light guide plate 6 is made of PMMA material, that is, organic glass.

[0028] The mounting structure includes a support member 10 disposed in the bottom shell 3, a rectangular cavity for mounting the display screen 1, the light homogenizer 8, the light guide plate 6, and the light guide plate support 7 is disposed in the support member 10, and limiting posts 10a for limiting the upward movement of the display screen are disposed on the four sides of the cavity, and the PCB board 5 is disposed on the support member 10 and located at the lower end of the cavity, that is, the display screen 1, the light homogenizer 8, the light guide plate 6, and the light guide plate support 7 are disposed in the cavity through the limiting posts and the PCB board. Preferably, two limiting posts are disposed at intervals on each side of the cavity.

[0029] To facilitate the installation of the PCB board, a positioning column 10b is provided on the bottom surface of the support member 10, and a positioning notch 5a is correspondingly provided on the PCB board. To achieve the installation of the light-homogenizing sheet, a light-homogenizing positioning hole 8a for installing the light-homogenizing sheet is provided on the light-homogenizing sheet 8, and a light-homogenizing positioning column 10d capable of passing through the light-homogenizing positioning hole is provided on the support member 10. Preferably, the light-homogenizing positioning hole is provided on the ear of the light-homogenizing sheet, and at least two light-homogenizing positioning holes are provided. When two light-homogenizing positioning holes are provided, the two light-homogenizing positioning holes are provided on two non-adjacent sides, and the two light-homogenizing positioning holes are not provided in an axisymmetric manner.

[0030] To ensure the installation of the light guide plate, a positioning block 7a is provided on the light guide plate support 7, a positioning groove 10e corresponding to the positioning block is provided on the support member 10, and positioning blocks are provided on the four sides of the light guide plate support block.

[0031] A menu button 11 and a setting button 12 for adjusting the displayed content are arranged outside the instrument body. Preferably, the display screen is arranged higher than the supporting member, and an operating hole for the menu button and the setting button to extend out is arranged on the upper cover.

[0032] In order to achieve the sealing between the upper cover and the bottom shell, a multi-layer step sealing structure is adopted between the upper cover 2 and the bottom shell 3, and a sealing ring 9 is arranged in the inner layer. The multi-layer step sealing structure specifically includes an inner layer protrusion 3a arranged on the bottom shell 3 and an outer layer protrusion 3b arranged on the bottom shell 3, a middle layer groove 3c is arranged between the inner layer protrusion 3a and the outer layer protrusion 3b, and the height of the inner layer protrusion 3a is greater than the height of the outer layer protrusion 3b, and at the same time, a step with a lower outer side and a higher inner side is arranged on the end face of the outer layer protrusion 3b, an inner layer groove 2a for the inner layer protrusion 3a to be inserted, a middle layer protrusion 2b that can be inserted into the middle layer groove 3c, and a matching protrusion 2c that matches the outer layer protrusion 3b, and a spacing is left between the middle layer protrusion and the outer layer protrusion, and the sealing ring 9 is arranged in the inner layer groove 2a, and a small protrusion for limiting the sealing ring is arranged in the inner layer groove. Preferably, a supporting rib is arranged between the middle layer protrusion 2b and the matching protrusion 2c. This structure can effectively prevent water from entering the instrument body.

[0033] A vent hole is provided below the bottom shell 3, and a waterproof breathable membrane 13 is provided in the vent hole to prevent water from entering. To facilitate the installation of the waterproof breathable membrane, a breathable column is provided in the bottom shell, and the vent hole is provided in the breathable column. At the same time, a waterproof connector 14 for data or power input and output is provided on the bottom shell 3.

[0034] In order to realize the installation between the support member 10 and the bottom shell 3, a support positioning column 3d is provided on the bottom shell 3, and a support positioning hole 10c for the support positioning column to pass through is provided on the support member 10, and the mounting bolts between the bottom shell and the upper cover pass through the support member, thereby reducing the setting of the mounting bolts. In order to facilitate the installation of the entire instrument, a mounting nut is embedded on the bottom surface of the bottom shell.

Claims

1. A motorcycle instrument with high efficiency light guide, comprising an instrument body and a backlight assembly, wherein the backlight assembly is arranged in the instrument body, and the instrument body comprises a display screen (1) for displaying data, characterized in that: The instrument body comprises an upper cover (2) and a bottom shell (3) arranged above and below, the upper cover (2) is provided with a display glass (4) for displaying on the display screen, and the backlight assembly and the display screen (1) are both arranged in the bottom shell (3) via a mounting structure; The backlight assembly comprises a PCB board (5), a light guide plate (6), a light guide plate support (7) and a light homogenizer (8); the light homogenizer (8), the light guide plate (6), the light guide plate support (7) and the PCB board (5) are arranged in sequence below the display screen (1); one end of the light guide plate (6) is an arc-shaped light guide end (6a) extending toward the light guide plate support (7), and the light guide end (6a) is located outside the light guide plate support (7); and a backlight light source capable of directly irradiating the light guide end (6a) is arranged on the PCB board (5).

2. The highly efficient light-guiding motorcycle instrument according to claim 1, characterized in that: A multi-layer step sealing structure is adopted between the upper cover (2) and the bottom shell (3), and a sealing ring (9) is arranged on the inner layer.

3. The highly efficient light-guiding motorcycle instrument according to claim 2, characterized in that: The mounting structure comprises a support member (10) arranged in a bottom shell (3); a rectangular cavity for mounting a display screen (1), a light homogenizing sheet (8), a light guide plate (6), and a light guide plate support (7) is arranged in the support member (10); limiting columns (10a) for limiting the upward movement of the display screen are arranged on four sides of the cavity; and the PCB board (5) is arranged on the support member (10) and is located at the lower end of the cavity.

4. The highly efficient light-guiding motorcycle instrument according to claim 3, characterized in that: The light homogenizing sheet (8) is provided with a light homogenizing positioning hole (8a) for installing the light homogenizing sheet, and the support member (10) is provided with a light homogenizing positioning column (10d) capable of passing through the light homogenizing positioning hole.

5. The highly efficient light-guiding motorcycle instrument according to claim 3, characterized in that: The light guide plate support (7) is provided with a positioning block (7a), and the support member (10) is provided with a positioning groove (10e) corresponding to the positioning block.

6. The highly efficient light-guiding motorcycle instrument according to claim 1, characterized in that: A menu button (11) and a setting button (12) for adjusting display content are arranged outside the instrument body.

7. The highly efficient light-guiding motorcycle instrument according to claim 1, characterized in that: A vent hole is provided below the bottom shell (3), and a waterproof ventilated membrane (13) is provided in the vent hole to prevent water from entering.

8. The highly efficient light-guiding motorcycle instrument according to claim 1, characterized in that: The light guide plate (6) is made of PMMA material.

9. The highly efficient light-guiding motorcycle instrument according to claim 1, characterized in that: The thickness of the light guide plate (6) gradually decreases from one side of the light guide end to the other side.

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