Extremely-narrow-edge full-segment code combination instrument

Abstract

The utility model discloses an ultra-narrow edge full segment code combination instrument, which comprises a bottom shell, an installation cavity is formed in the bottom shell in a concave mode, a display assembly is installed in the installation cavity, the display assembly comprises a glass cover plate, a segment code screen, a light guide support and a PCB which are arranged in sequence, the glass cover plate is fixed with the segment code screen in a bonding mode, and the light guide support is fixed with the PCB. A containing groove for containing the segment code screen is formed in the front side wall of the light guide support, the edge portion of the glass cover plate is fixedly bonded with the light guide support, two oppositely-arranged buckle structures are arranged on the rear side wall of the light guide support, the edge portion of the PCB is matched with the two buckle structures in a buckled mode, and a flexible circuit board is connected between the PCB and the segment code screen. A plurality of supporting structures are arranged along the edge of the mounting cavity, each supporting structure abuts against the PCB, and the inner wall of the mounting cavity is matched with the edge part of the light guide support and is fixed to the edge part of the light guide support in an adhesive mode. According to the ultra-narrow-edge full-segment combination instrument, bolts are not needed, the production cost is reduced, the installation and maintenance are more convenient, and the PCB is prevented from being damaged due to misoperation.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile instruments, in particular to an extremely narrow-edge full-segment code combination instrument. Background Art

[0002] Conventional instruments in general cars include speedometer, tachometer, oil pressure gauge, water temperature gauge, fuel gauge, charging gauge, etc. As vehicles become more intelligent and entertaining, the combination instrument of vehicles is developing towards large screen and human-computer interaction.

[0003] In summary, the instrument cluster is a carrier for displaying driving information on a car. Its structure includes a housing, a PCB board, a light guide structure, a segment code screen, a glass panel, etc. The segment code screen fits the light guide structure, so that the light emitted by the LED lamp on the PCB board is first guided by the light guide structure and then emitted by the segment code screen, so that the segment code screen can display vivid and rich, even colorful patterns. However, most of the components of the instrument cluster are connected by bolts, among which the PCB board is usually fixed in the housing by bolts, which makes it easy for the staff to damage the PCB board due to misoperation when installing the instrument cluster. Utility Model Content

[0004] The utility model aims to solve the above-mentioned technical deficiencies and is designed to provide an extremely narrow edge full-segment code combination instrument, which does not require the use of bolts, reduces production costs, is more convenient to install and maintain, and avoids damage to the PCB board due to misoperation.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: an extremely narrow-edge full-segment code combination instrument, including a bottom shell, a mounting cavity is concavely formed in the bottom shell, a display component is installed in the mounting cavity, the display component includes a glass cover plate, a segment code screen, a light guide bracket and a PCB board arranged in sequence, the glass cover plate is bonded and fixed to the segment code screen, the front side wall of the light guide bracket is provided with a accommodating groove for accommodating the segment code screen, the edge portion of the glass cover plate is bonded and fixed to the front side wall of the light guide bracket, the rear side wall of the light guide bracket is provided with two relatively arranged snap structures, the edge portion of the PCB board is snap-fitted with the two snap structures, a flexible circuit board is connected between the PCB board and the segment code screen, the PCB board is provided with an interface component, the mounting cavity is penetrated with a through hole for the interface component to pass through, the mounting cavity is arranged with a plurality of supporting structures along its edge, each of the supporting structures is abutted against the PCB board, and the inner wall of the mounting cavity is adapted to and bonded to the edge portion of the light guide bracket.

[0006] Preferably, two side portions of the light guide bracket extend outwardly with docking portions, and the installation cavity is provided with docking grooves for the docking portions to be plugged into.

[0007] Preferably, the docking portion is bonded and fixed to the docking groove.

[0008] Preferably, the outer side wall of the docking portion is provided with a light shielding layer.

[0009] Preferably, a plurality of limiting structures are arranged along the edge of the rear side wall of the light guide bracket, and an inner groove for the limiting structure to be plugged into is penetrated through the edge portion of the PCB board.

[0010] Preferably, a plurality of light-emitting bodies are arranged on the PCB board, and the light-guiding bracket is penetrated with a light-emitting hole for the light-emitting body to be plugged in, and the emitted light of the light-emitting body is irradiated onto the segment code screen through the light-emitting hole.

[0011] Preferably, the edge portion of the light guide bracket is stepped, the inner wall of the mounting cavity is formed with a supporting surface extending along its edge, a plurality of protrusions are evenly arranged on the supporting surface, and each of the protrusions is in conflict with the edge portion of the light guide bracket.

[0012] Preferably, there are two flexible circuit boards, and the two flexible circuit boards are symmetrically arranged on one side of the segment code screen.

[0013] Preferably, the light guide bracket is provided with an avoidance groove for the flexible circuit board to pass through, and an avoidance space is formed on the inner wall of the installation cavity at a position relative to the avoidance groove.

[0014] Preferably, at least one air-avoiding groove is formed on the inner wall of the accommodating groove, and a matching portion which matches the gap of the air-avoiding groove is provided on the edge of the segment code screen.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model discloses an extremely narrow-edge full-segment code combination instrument with a reliable structure. The glass cover plate is bonded and fixed to the light guide bracket, the segment code screen is positioned in the accommodating groove, the PCB board is snap-connected to the rear side wall of the light guide bracket, so that the PCB board is positioned on the rear side plate of the light guide bracket. When the display component is assembled in the installation cavity, each of the supporting structures is in contact with the PCB board, and each of the supporting structures cooperates with the light guide bracket to provide structural support for the PCB board, so that the PCB board is stably installed in the installation cavity without the use of bolts, thereby reducing production costs, making installation and maintenance more convenient, and avoiding damage to the PCB board due to misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the structure of the instrument cluster in the embodiment;

[0018] Figure 2 2 is a cross-sectional view of the instrument cluster in the embodiment Figure 1 ;

[0019] Figure 3 2 is a cross-sectional view of the instrument cluster in the embodiment Figure 2 ;

[0020] Figure 4 is a schematic structural diagram of the bottom shell in the embodiment;

[0021] Figure 5 is a schematic diagram showing the structure of a display component in an embodiment;

[0022] Figure 6 is an exploded view showing components in an embodiment.

[0023] In the figure: 1. bottom shell; 101. installation cavity; 102. through hole; 103. support structure; 104. docking groove; 105. avoidance space; 106. support surface; 107. raised part; 2. glass cover; 3. segment code screen; 301. matching part; 4. light guide bracket; 401. accommodating groove; 402. avoidance groove; 403. snap structure; 404. docking part; 405. shading layer; 406. limiting structure; 407. light-emitting hole; 408. avoidance groove; 5. PCB board; 501. interface part; 502. inner groove; 503. light-emitting body; 6. flexible circuit board. DETAILED DESCRIPTION

[0024] The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings.

[0025] refer to Figures 1 to 6 , an extremely narrow edge full-segment code combination instrument, comprising a bottom shell 1, a mounting cavity 101 is concavely formed in the bottom shell 1, a display component is installed in the mounting cavity 101, the display component comprises a glass cover plate 2, a segment code screen 3, a light guide bracket 4 and a PCB board 5 arranged in sequence, the glass cover plate 2 is made of aluminum silicon glass, the glass cover plate 2 and the segment code screen 3 are bonded and fixed, a front side wall of the light guide bracket 4 is provided with a receiving groove 401 for accommodating the segment code screen 3, and an inner wall on one side of the receiving groove 401 is provided with three spaced-apart avoidance grooves 402, and an edge portion of the segment code screen 3 is provided with a matching portion 301 that is gap-matched with the avoidance groove 402, guiding the segment code screen 3 to be aligned and assembled in the receiving groove 401, and the setting of the avoidance groove 402 makes the segment code screen 3 collide or interfere with the receiving groove 401 during relative movement, preferably, the matching portion 301 has a liquid crystal injection port, and the liquid crystal injection port is a prior art and is not described in detail here.

[0026] The area of ​​the glass cover plate 2 is larger than that of the segment code screen 3, so that the edge of the glass cover plate 2 extends out of the outside of the segment code screen 3. The edge of the glass cover plate 2 is bonded and fixed to the front side wall of the light guide bracket 4 to locate the segment code screen 3 in the accommodating groove 401.

[0027] The light guide bracket 4 is made of plastic, and the rear side wall of the light guide bracket 4 is provided with two oppositely arranged snap structures 403, and the edge portion of the PCB board 5 is snap-fitted with the two snap structures 403, so that the PCB board 5 and the light guide bracket 4 are snap-fitted. The rear side wall of the light guide bracket 4 is arranged with a number of limiting structures 406 along its edge, and the edge portion of the PCB board 5 is penetrated with an inner groove 502 for the limiting structure 406 to be inserted, so as to limit the PCB board 5. The structure of the light guide bracket 4 on the area relative to the PCB board 5 is a grid plate structure, and a number of luminous bodies 503 are arranged on the PCB board 5. The light guide bracket 4 is penetrated with a light-emitting hole 407 for the luminous body 503 to be inserted, and the emitted light of the luminous body 503 is irradiated onto the segment code screen 3 through the light-emitting hole 407.

[0028] Two flexible circuit boards 6 are symmetrically arranged on one side of the segment code screen 3, and the PCB board 5 and the segment code screen 3 are electrically connected through the two flexible circuit boards 6. The light guide bracket 4 is provided with an avoidance groove 408 for the flexible circuit board 6 to pass through, and an avoidance space 105 is formed on the inner wall of the installation cavity 101 at a position relative to the avoidance groove 408. The avoidance space 105 is provided for the flexible circuit board to move, so as to prevent the flexible circuit board from interfering with the disassembly operation of the bottom shell 1 and the display assembly.

[0029] The two sides of the light guide bracket 4 extend outward with docking parts 404, and the mounting cavity 101 is provided with docking grooves 104 for the docking parts 404 to be inserted, so as to guide the light guide bracket 4 to be aligned and assembled in the mounting cavity 101, and the docking parts 404 are bonded and fixed to the docking grooves 104, and the inner wall of the mounting cavity 101 is in conflict with the outer wall of the light guide bracket 4. The outer wall of the docking part 404 is provided with a light shielding layer 405, and the light shielding layer 405 is made of plastic. The edge of the light guide bracket 4 is stepped, and the inner wall of the mounting cavity 101 is formed with a supporting surface 106 extending along the edge thereof, and a plurality of protrusions 107 are evenly arranged on the supporting surface 106, and each protrusion 107 is in conflict with the edge of the light guide bracket 4, and preferably, the protrusion 107 can be a structural adhesive.

[0030] The PCB board 5 is provided with an interface component 501 , and the installation cavity 101 is penetrated by a through hole 102 for the interface component 501 to pass through.

[0031] The installation cavity 101 is provided with a plurality of supporting structures 103 along its edge, each supporting structure 103 is in contact with the PCB board 5, and the inner wall of the installation cavity 101 is matched with and bonded to the edge of the light guide bracket 4. The combined instrument has a reliable structure and is easy to install. The glass cover plate 2 is bonded to and fixed to the segment code screen 3, and the glass cover plate 2 is bonded to and fixed to the light guide bracket 4. The segment code screen 3 is positioned in the receiving groove 401, and the PCB board 5 is snap-fitted to the rear side wall of the light guide bracket 4, so that the PCB board 5 is positioned on the rear side plate of the light guide bracket 4, thereby forming a display assembly with the glass cover plate 2, the segment code screen 3, the light guide bracket 4 and the PCB board 5. When the display assembly is assembled in the mounting cavity 101, each supporting structure 103 is in contact with the PCB board 5, and each supporting structure 103 cooperates with the light guide bracket 4 to provide structural support for the PCB board 5, so that the PCB board 5 is stably installed in the mounting cavity 101 without the need to use bolts, thereby reducing production costs, making installation and maintenance more convenient, and avoiding damage to the PCB board 5 due to misoperation.

[0032] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. An extremely narrow-edge full-segment code combination instrument, comprising a bottom shell (1), wherein the bottom shell (1) is concavely formed with a mounting cavity (101), wherein a display component is mounted in the mounting cavity (101), wherein: The display assembly comprises a glass cover plate (2), a segment code screen (3), a light guide bracket (4) and a PCB board (5) which are arranged in sequence; the glass cover plate (2) is bonded and fixed to the segment code screen (3); a front side wall of the light guide bracket (4) is provided with a receiving groove (401) for receiving the segment code screen (3); an edge portion of the glass cover plate (2) is bonded and fixed to the front side wall of the light guide bracket (4); a rear side wall of the light guide bracket (4) is provided with two oppositely arranged snap-on structures (403); an edge portion of the PCB board (5) is bonded and fixed to the two snap-on structures (403) snap fit, a flexible circuit board (6) is connected between the PCB board (5) and the segment code screen (3), the PCB board (5) is provided with an interface component (501), the installation cavity (101) is penetrated by a through hole (102) for the interface component (501) to pass through, the installation cavity (101) is provided with a plurality of supporting structures (103) along its edge, each of the supporting structures (103) is in contact with the PCB board (5), and the inner wall of the installation cavity (101) is adapted to and bonded to the edge of the light guide bracket (4).

2. The ultra-narrow edge full-segment code combination instrument according to claim 1, characterized in that: The two sides of the light guide bracket (4) are provided with docking portions (404) extending outwards, and the installation cavity (101) is provided with docking grooves (104) for the docking portions (404) to be plugged in.

3. The ultra-narrow edge full-segment code combination instrument according to claim 2, characterized in that: The docking portion (404) is bonded and fixed to the docking groove (104).

4. The ultra-narrow edge full-segment code combination instrument according to claim 2, characterized in that: The outer side wall of the docking portion (404) is provided with a light shielding layer (405).

5. The ultra-narrow edge full-segment code combination instrument according to claim 1, characterized in that: A plurality of limiting structures (406) are arranged along the edge of the rear side wall of the light guide bracket (4), and an inner groove (502) for the limiting structure (406) to be plugged into is penetrated through the edge portion of the PCB board (5).

6. The ultra-narrow edge full-segment code combination instrument according to claim 1, characterized in that: A plurality of luminous bodies (503) are arranged on the PCB board (5), and a luminous hole (407) is penetrated through the light guide bracket (4) for the luminous bodies (503) to be plugged in, and the emitted light of the luminous bodies (503) is irradiated onto the segment code screen (3) through the luminous hole (407).

7. The ultra-narrow edge full-segment code combination instrument according to claim 1, characterized in that: The edge portion of the light guide bracket (4) is in a step-like shape, and the inner wall of the installation cavity (101) is formed with a support surface (106) extending along its edge, and a plurality of protrusions (107) are evenly arranged on the support surface (106), and each of the protrusions (107) is in contact with the edge portion of the light guide bracket (4).

8. The ultra-narrow edge full-segment code combination instrument according to claim 1, characterized in that: The number of the flexible circuit boards (6) is two, and the two flexible circuit boards (6) are symmetrically arranged on one side of the segment code screen (3).

9. The ultra-narrow edge full-segment code combination instrument according to claim 1, characterized in that: The light guide bracket (4) is provided with an escape groove (408) for the flexible circuit board (6) to pass through, and an escape space (105) is formed on the inner wall of the installation cavity (101) at a position relative to the escape groove (408).

10. The ultra-narrow edge full-segment code combination instrument according to claim 1, characterized in that: At least one air-avoiding groove (402) is provided on the inner wall of the containing groove (401), and a matching portion (301) that is clearance-matched with the air-avoiding groove (402) is provided on the edge of the segment code screen (3).

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