A bayonet mounting structure for a combination instrument

Abstract

The utility model discloses a bayonet type mounting structure of combination instrument relates to automobile combination instrument technical field, including organic glass panel, bottom shell, baffle, instrument panel and circuit board, organic glass panel and bottom shell are connected through first buckle subassembly, and baffle, instrument panel, circuit board are assembled in the cavity enclosed by both from front to back, and baffle and bottom shell are connected through frame type connecting component joint, and instrument panel and circuit board are connected through second buckle subassembly, and circuit board and bottom shell are connected through third buckle subassembly, and baffle is equipped with inner support plate and positioning column auxiliary positioning. The structure does not adopt a screw all the time, and the clamping of each component is realized through multiple buckle subassembly, and assembling does not need tool, and is efficient and quick, and the machining cost of screw and mounting hole is saved, and the overall cost is reduced, and the stable connection of multiple positioning structure is ensured, and dismounting is convenient, and is applicable to the batch production and subsequent maintenance of combination instrument.

Description

Technical Field

[0001] This utility model relates to the field of automotive instrument cluster technology, specifically a bayonet-type mounting structure for an instrument cluster. Background Technology

[0002] Instrument clusters are core components in automobiles, construction machinery, and other equipment used to display operating parameters (such as speed, fuel level, and water temperature). They typically integrate multiple components, including a acrylic panel, a protective cover, an instrument panel, and circuit boards, requiring a reliable mounting structure to secure and assemble these components. Currently, instrument clusters are mostly installed using screws, where multiple screws connect the acrylic panel to the base, the protective cover to the base, and the circuit board to the base, one by one. This method has the following drawbacks: the assembly process requires tools such as screwdrivers, is cumbersome, has low efficiency, and is difficult to adapt to mass production needs; subsequent maintenance or component replacement requires disassembling each screw individually, which is inconvenient.

[0003] Therefore, there is an urgent need for a screwless, efficient, and low-cost combined instrument mounting structure to address the shortcomings of existing technologies. Utility Model Content

[0004] In view of the problems of low assembly efficiency, high cost and inconvenient disassembly and assembly in the existing technology, this utility model provides a combination instrument installation structure that does not use a single screw for fixing and is assembled by bayonet method, so as to achieve efficient and quick assembly and reduce costs.

[0005] A bayonet-type mounting structure for a combination instrument includes: an acrylic panel and a base shell, which are connected and fixed by a first snap-fit ​​assembly; a protective plate, an instrument panel, and a circuit board are sequentially assembled inside the acrylic panel and the base shell from front to back; the protective plate and the base shell are snapped and fixed by a frame-type connecting assembly; the instrument panel and the circuit board are connected and fixed by a second snap-fit ​​assembly; and the circuit board and the base shell are connected and fixed by a third snap-fit ​​assembly.

[0006] As a preferred embodiment of the present invention, the first buckle assembly includes: a first hook installed on the outer periphery of the plexiglass panel and a first slot opened on the outer periphery of the bottom shell, wherein the first hook passes through a clearance groove opened on the outer periphery of the protective plate and engages in the first slot.

[0007] As a preferred embodiment of this utility model, the frame-type connecting assembly includes: a frame-type slot installed on the outer periphery of the protective plate and a locking block installed on the outer periphery of the bottom shell; a limiting groove is formed on the outer periphery of the bottom shell, and the locking block is placed in the limiting groove; the frame-type slot is inserted into the limiting groove and is locked and fixed with the locking block.

[0008] As a preferred embodiment of this utility model, the opening of the limiting groove is provided with an oblique insertion surface, which facilitates the assembly of the frame-type card slot and the card block.

[0009] As a preferred embodiment of the present invention, the second snap-fit ​​assembly includes: a second hook installed on the outer periphery of the instrument panel and a second slot opened on the outer periphery of the circuit board, wherein the second hook and the second slot are snapped together and fixed.

[0010] As a preferred embodiment of this utility model, the third snap-fit ​​assembly includes: a third hook installed on the inner circumference of the bottom shell and a third slot opened on the outer circumference of the circuit board, wherein the third hook and the third slot are snapped together and fixed; a support frame is provided inside the bottom shell, which is used to support the installation of the circuit board.

[0011] As a preferred embodiment of this utility model, the outer periphery of the protective plate is evenly distributed with inner support plates and positioning posts. The positioning posts are set close to the inner side of the inner support plates, and the inner support plates are inserted into the inner surface of the bottom shell to be combined with the frame-type connecting components to improve the support strength and connection stability. The outer periphery of the instrument panel is provided with positioning grooves corresponding to the positioning posts.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects:

[0013] This utility model eliminates the need for screws throughout the entire process, saving on screw procurement costs and the machining costs of screw mounting holes on components. Each component is secured via snap-fit ​​assemblies and frame-type connecting assemblies, requiring no tools and allowing for manual assembly. This increases assembly efficiency by over 30% compared to traditional screw-fixing methods, making it suitable for mass production. For subsequent maintenance or component replacement, components can be easily and quickly disassembled by applying external force to cause the snap-fit ​​assemblies to elastically deform. The inner support plate of the guard plate mates with the frame-type connecting assemblies, the positioning posts mate with the positioning slots, and the support frame supports the circuit board. This multi-layered structural design ensures stable connection of each component and can withstand the vibrations encountered during vehicle operation. Attached Figure Description

[0014] Figure 1 This is an exploded view of the overall structure of this utility model;

[0015] Figure 2 This is an enlarged view of a portion of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the assembly of the circuit board and the bottom shell of this utility model;

[0017] Figure 4 This is an assembly diagram of the present invention.

[0018] In the diagram: 1. Acrylic glass panel; 2. Protective plate; 3. Instrument panel; 4. Circuit board; 5. Bottom shell; 6. First hook; 7. Leaving groove; 8. First slot; 9. Frame-type slot; 10. Locking block; 11. Angled insertion surface; 12. Second hook; 13. Second slot; 14. Third slot; 15. Third hook; 16. Support frame; 17. Limiting groove; 18. Inner support plate; 19. Positioning post; 20. Positioning groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1

[0021] like Figures 1 to 4 As shown in the figure, a specific embodiment of the bayonet-type mounting structure of the combined instrument of this utility model includes, from front to back: an acrylic panel 1, a protective plate 2, an instrument panel 3, a circuit board 4, and a bottom shell 5, with the following specific connections:

[0022] The acrylic panel 1 and the base shell 5 are connected and fixed by the first snap-fit ​​assembly:

[0023] The first snap-fit ​​assembly includes a first hook 6 installed on the outer periphery of the acrylic panel 1 and a first slot 8 opened on the outer periphery of the bottom shell 5. The first hook 6 passes through the clearance groove 7 opened on the outer periphery of the protective plate 2 and snaps into the first slot 8, thereby achieving the initial positioning and fixation of the acrylic panel 1, the protective plate 2 and the bottom shell 5.

[0024] The protective plate 2 and the bottom shell 5 are fixed together by a frame-type connecting assembly:

[0025] The frame-type connection assembly includes a frame-type slot 9 installed on the outer periphery of the protective plate 2 and a locking block 10 installed on the outer periphery of the bottom shell 5; a limiting groove 17 is opened on the outer periphery of the bottom shell 5, and the locking block 10 is placed in the limiting groove 17; the frame-type slot 9 is inserted into the limiting groove 17 and is locked and fixed with the locking block 10, thereby enhancing the connection stability between the protective plate 2 and the bottom shell 5.

[0026] Instrument panel 3 and circuit board 4 are connected and fixed by the second snap-fit ​​assembly:

[0027] The second snap-fit ​​assembly includes a second hook 12 installed on the outer periphery of the instrument panel 3 and a second slot 13 opened on the outer periphery of the circuit board 4. The second hook 12 and the second slot 13 are snapped together and fixed to achieve precise fitting and fixation between the instrument panel 3 and the circuit board 4.

[0028] Circuit board 4 and bottom shell 5 are connected and fixed by a third snap-fit ​​assembly:

[0029] The third snap-fit ​​assembly includes a third hook 15 installed on the inner periphery of the bottom shell 5 and a third slot 14 opened on the outer periphery of the circuit board 4. The third hook 15 and the third slot 14 are snapped together and fixed. A support frame 16 is provided inside the bottom shell 5. The support frame 16 is used to support the installation of the circuit board 4 and prevent the circuit board 4 from deforming due to vibration or external force.

[0030] Furthermore, the groove opening of the limiting groove 17 is provided with an inclined insertion surface 11, which facilitates the assembly of the frame-type slot 9 and the card block 10, reduces insertion resistance, and improves assembly efficiency.

[0031] Furthermore, inner support plates 18 and positioning posts 19 are evenly distributed around the outer periphery of the guard plate 2. The positioning posts 19 are set close to the inner side of the inner support plate 18. The inner support plate 18 is inserted into the inner surface of the bottom shell 5 to be combined with the frame-type connecting assembly to improve the support strength and connection stability.

[0032] Furthermore, a positioning groove 20 is provided on the outer periphery of the instrument panel 3 corresponding to the positioning post 19. The positioning post 19 and the positioning groove 20 cooperate to realize the assembly positioning of the guard plate 2 and the instrument panel 3, so as to avoid the component displacement.

[0033] The working principle of this utility model:

[0034] Assembly of instrument panel 3 and circuit board 4: Align the second hook 12 on the outer periphery of instrument panel 3 with the second slot 13 on the outer periphery of circuit board 4, apply external force to make the second hook 12 elastically deform and then snap into the second slot 13, thus completing the fixing of instrument panel 3 and circuit board 4.

[0035] Assembly of circuit board 4 and base shell 5: Place the assembled instrument panel 3 and circuit board 4 assembly into the base shell 5, so that the bottom surface of circuit board 4 fits against the support frame 16 inside the base shell 5. Then, align the third slot 14 on the outer periphery of circuit board 4 with the third hook 15 on the inner periphery of base shell 5 and snap it in place to complete the fixing of circuit board 4 and base shell 5.

[0036] Assembly of the protective plate 2 and the bottom shell 5: Align the frame-shaped slot 9 on the outer periphery of the protective plate 2 with the limiting slot 17 on the outer periphery of the bottom shell 5, and insert it along the inclined insertion surface 11 of the limiting slot 17 until the frame-shaped slot 9 is engaged and fixed with the locking block 10 in the limiting slot 17; at this time, the inner support plate 18 on the outer periphery of the protective plate 2 fits against the inner surface of the bottom shell 5, realizing the initial fixation of the protective plate 2 and the bottom shell 5; the positioning post 19 of the protective plate 2 cooperates with the positioning slot 20 on the outer periphery of the instrument panel 3 to realize the positioning of the three.

[0037] Assembly of acrylic panel 1 and base shell 5: Cover the front end of base shell 5 with acrylic panel 1, so that the first hook 6 on the outer periphery of acrylic panel 1 passes through the relief groove 7 of protective plate 2 until the first hook 6 is engaged in the first groove 8 on the outer periphery of base shell 5, thus completing the assembly of the entire instrument combination.

[0038] All components mentioned in this article are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods, so they will not be described in detail here.

[0039] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A bayonet mounting structure for a combination instrument, characterized by comprising: include: The acrylic panel (1) and the base shell (5) are connected and fixed by the first snap-fit ​​assembly; The interior of the acrylic panel (1) and the bottom shell (5) is fitted with a protective plate (2), an instrument panel (3), and a circuit board (4) from front to back. The protective plate (2) and the bottom shell (5) are fixed together by a frame-type connecting assembly; The instrument panel (3) and the circuit board (4) are connected and fixed by the second snap-fit ​​assembly; The circuit board (4) and the bottom shell (5) are connected and fixed by a third snap-fit ​​assembly.

2. The bayonet mounting structure for a combination instrument according to claim 1, characterized by: The first snap-fit ​​assembly includes: a first hook (6) installed on the outer periphery of the plexiglass panel (1) and a first slot (8) opened on the outer periphery of the bottom shell (5), wherein the first hook (6) passes through the clearance groove (7) opened on the outer periphery of the protective plate (2) and engages in the first slot (8).

3. The bayonet mounting structure for a combination instrument according to claim 1, wherein: The frame-type connecting assembly includes: a frame-type slot (9) installed on the outer periphery of the guard plate (2) and a locking block (10) installed on the outer periphery of the bottom shell (5); a limiting groove (17) is opened on the outer periphery of the bottom shell (5), and the locking block (10) is placed in the limiting groove (17); the frame-type slot (9) is inserted into the limiting groove (17) and is locked and fixed with the locking block (10).

4. The bayonet mounting structure for a combination instrument according to claim 3, wherein: The limiting groove (17) has an oblique insertion surface (11) at the opening, which facilitates the assembly of the frame-type card slot (9) and the card block (10).

5. The bayonet mounting structure for a combination instrument according to claim 1, characterized by: The second snap-fit ​​assembly includes: a second hook (12) installed on the outer periphery of the instrument panel (3) and a second slot (13) opened on the outer periphery of the circuit board (4), wherein the second hook (12) and the second slot (13) are snapped together and fixed.

6. The bayonet mounting structure for a combination instrument according to claim 1, characterized by: The third snap-fit ​​assembly includes: a third hook (15) installed on the inner periphery of the bottom shell (5) and a third slot (14) opened on the outer periphery of the circuit board (4), the third hook (15) and the third slot (14) being snapped together; a support frame (16) is provided inside the bottom shell (5), the support frame (16) being used to support the installation of the circuit board (4).

7. The bayonet mounting structure for a combination instrument according to claim 1, wherein: The outer periphery of the guard plate (2) is evenly distributed with inner support plates (18) and positioning posts (19). The positioning posts (19) are set close to the inner side of the inner support plates (18). The inner support plates (18) are inserted into the inner surface of the bottom shell (5) to be combined with the frame-type connecting components to improve the support strength and connection stability. The outer periphery of the instrument panel (3) is provided with positioning grooves (20) corresponding to the positioning posts (19).

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