Middle iron frame and assembly structure thereof

Abstract

The utility model discloses a middle iron frame and an assembling structure thereof, the middle iron frame comprises a middle iron frame body, the circumferential edge of the middle iron frame body is convexly provided with a clamping lug, and the clamping lug inclines downwards relative to the middle iron frame body. According to the middle iron frame, the clamping lugs inclining downwards are arranged on the circumferential edge of the middle iron frame body in the outward protruding mode, so that the middle iron frame is detachably connected with a die casting through the clamping lugs. The inclined arrangement of the clamping lugs facilitates machining, greatly simplifies machining procedures, reduces cost, and meanwhile can guarantee stable connection of the middle iron frame and the die casting.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, in particular to a middle iron frame and an assembly structure thereof. Background Art

[0002] The backlight module of a vehicle-mounted liquid crystal display device includes a die-casting part, a middle iron frame, a lamp strip and an optical component. The middle iron frame and the die-casting part are assembled in an inverted buckle manner to form a receiving cavity, and both the lamp strip and the optical component are installed in the receiving cavity. The die-casting part and the middle iron frame are generally connected by a buckle structure for convenient disassembly. The existing structure of the middle iron frame is as Figure 1 shown. A wrapping edge 10 is formed by bending vertically downward from the side part, and the wrapping edge 10 is used for clamping with the die-casting part. This bending process is complex and costly. Summary of the Utility Model

[0003] In order to overcome at least one of the above-mentioned defects in the prior art, the utility model provides a middle iron frame and an assembly structure thereof to reduce costs.

[0004] The technical solution adopted by the utility model to solve its problems is as follows:

[0005] A middle iron frame includes: a middle iron frame body, and lugs are convexly provided on the circumferential edge of the middle iron frame body, and the lugs are inclined downward compared with the middle iron frame body.

[0006] Further, the angle of the lugs inclined downward compared with the middle iron frame body is less than 45°.

[0007] Further, avoidance holes are provided on both sides of the middle iron frame body corresponding to the lugs.

[0008] Further, several lugs are provided, and the several lugs are arranged at equal intervals on the circumferential edge of the middle iron frame body.

[0009] Further, the middle iron frame body includes a first side frame, a second side frame, a third side frame and a fourth side frame that are sequentially connected to form an annular structure, and lugs are convexly provided on the outer edges of the first side frame, the second side frame, the third side frame and the fourth side frame.

[0010] The utility model also provides a middle iron frame assembly structure, including: a die-casting part and a middle iron frame.

[0011] Further, the shape of the die-casting part is adapted to the shape of the middle iron frame, and the middle iron frame is detachably covered on the die-casting part.

[0012] Further, the die-casting part includes a bottom plate and side plates, the side plates are provided on the circumferential edge of the bottom plate and extend upward, and the middle iron frame is detachably connected to the side plates.

[0013] Further, the side plates are provided with slots adapted to the lugs, and the lugs are clamped in the slots.

[0014] Furthermore, the side plate is located outside the middle iron frame body, the card slot is arranged at the top of the inner wall of the side plate, and the lug projects outward from the circumferential edge of the middle iron frame body towards the side plate to be clamped in the card slot.

[0015] The beneficial effects of the middle iron frame and its assembly structure provided by the present utility model are as follows:

[0016] By protruding and arranging downwardly inclined lugs at the circumferential edge of the middle iron frame body, the detachable connection between the middle iron frame and the die-casting part is realized through the lugs. The inclined arrangement of the lugs is convenient for processing, greatly simplifies the processing procedure and reduces the cost, and at the same time can ensure the stable connection between the middle iron frame and the die-casting part. Description of the Drawings

[0017] Figure 1 is the front view of the existing middle iron frame structure;

[0018] Figure 2 is the structural schematic diagram of the middle iron frame in Embodiment 1;

[0019] Figure 3 is Figure 2 the enlarged view at A in

[0020] Figure 4 is the side view of the middle iron frame in Embodiment 1;

[0021] Figure 5 is the schematic diagram of the assembly structure of the middle iron frame in Embodiment 2;

[0022] Figure 6 is Figure 5 the enlarged view at B in

[0023] Among them, the meanings of the reference numerals are as follows:

[0024] 1. Middle iron frame; 11. Middle iron frame body; 111. Avoidance hole; 12. Lug; 2. Die-casting part; 21. Bottom plate; 22. Side plate; 221. Card slot. Detailed Embodiment

[0025] For better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0028] Embodiment 1

[0029] Refer to Figures 2 - 4 , this embodiment discloses a middle iron frame, including: a middle iron frame body 11, a clamping ear 12 is convexly provided on the circumferential edge of the middle iron frame body 11, and the clamping ear 12 is inclined downward compared with the middle iron frame body 11. That is, the clamping ear 12 is provided on the outer edge of the middle iron frame body 11, and the end of the clamping ear 12 away from the middle iron frame body 11 is lower than the end of the clamping ear 12 connected to the middle iron frame body 11, so that the clamping ear 12 is inclined up and down and inclined downward away from the middle iron frame body 11.

[0030] Thus, the middle iron frame 1 realizes detachable assembly of the middle iron frame 1 through the clamping ear 12 which is convexly provided on the circumferential edge of the middle iron frame body 11 and inclined downward. The inclined setting of the clamping ear 12 is convenient for processing, greatly simplifies the processing procedure and reduces the cost, and at the same time can ensure the stable assembly of the middle iron frame 1.

[0031] Specifically, a plurality of clamping ears 12 are provided, and the plurality of clamping ears 12 are arranged at equal intervals on the circumferential edge of the middle iron frame body 11. The middle iron frame 1 realizes detachable assembly through the plurality of clamping ears 12 arranged at equal intervals. The setting of a plurality of clamping ears 12 and their equal-spacing distribution are beneficial to improving the stability of the assembly of the middle iron frame 1.

[0032] On this basis, the middle iron frame body 11 includes a first side frame, a second side frame, a third side frame and a fourth side frame which are sequentially connected to form an annular structure, and clamping ears 12 are convexly provided on the outer edges of the first side frame, the second side frame, the third side frame and the fourth side frame. On the basis of the equal-spacing distribution of the plurality of clamping ears 12, it is necessary to ensure that the first side frame, the second side frame, the third side frame and the fourth side frame are all provided with clamping ears 12, so that each side frame of the middle iron frame 1 can be stably installed.

[0033] On the basis of the above structure, the lug 12 inclines downward relative to the middle iron frame body 11 at an angle less than 45°. The inclination angle of the lug 12 being less than 45° can significantly simplify the processing technology of the lug 12, resulting in a substantial reduction in the production cost of the middle iron frame 1.

[0034] In addition, avoidance holes 111 are formed on both sides of the middle iron frame body 11 corresponding to the lug 12. The provision of the avoidance holes 111 can prevent the connection between the lug 12 and the middle iron frame body 11 from affecting the stable clamping of the lug 12 when the middle iron frame 1 is installed, thereby ensuring the efficient installation of the middle iron frame.

[0035] Embodiment 2

[0036] Refer to Figure 5 and Figure 6 , this embodiment discloses an assembly structure of a middle iron frame, including: a die-casting part 2 and a middle iron frame 1. The middle iron frame 1 is detachably connected to the die-casting part 2.

[0037] Specifically, the shape of the die-casting part 2 is adapted to the shape of the middle iron frame 1, and the middle iron frame 1 is detachably covered on the die-casting part 2. The structure in which the die-casting part 2 is adapted to the middle iron frame 1 can ensure the stability of the assembly of the die-casting part 2 and the middle iron frame 1.

[0038] The die-casting part 2 includes a bottom plate 21 and side plates 22. The side plates 22 are arranged at the circumferential edge of the bottom plate 21 and extend upward. The middle iron frame 1 is detachably connected to the side plates 22. The shape enclosed by the side plates 22 is adapted to the shape of the middle iron frame 1 to enable the stable assembly of the die-casting part 2 and the middle iron frame 1.

[0039] On this basis, a slot 221 adapted to the lug 12 is formed on the side plate 22, and the lug 12 is clamped in the slot 221. Thus, the detachable connection between the middle iron frame 1 and the die-casting part 2 is realized through the detachable connection between the lug 12 and the slot 221, and the connection structure is simple and convenient for assembly.

[0040] Since a plurality of lugs 12 are provided at equal intervals, the number of slots 221 is equal to the number of lugs 12 and their positions correspond one by one. Moreover, the slots 221 are inclined at the same angle as the lugs 12 to ensure the stability of the clamping between the lugs 12 and the slots 221, thereby ensuring the stable assembly of the middle iron frame 1 and the die-casting part 2.

[0041] Meanwhile, when the slot 221 is clamped with the lug 12, the opening edge of the slot 221 just abuts against the connection between the middle iron frame body 11 and the lug 12. Once the dimension design is incorrect, it is very easy to affect the connection stability between the lug 12 and the slot 221. Thus, the middle iron frame body 11 is provided with avoidance holes 111 on both sides corresponding to the lug 12 to solve this problem.

[0042] More specifically, the side plate 22 is located outside the middle iron frame body 11. The clamping groove 221 is arranged at the top of the inner wall of the side plate 22. The clamping ear 12 protrudes outward from the circumferential edge of the middle iron frame body 11 towards the side plate 22 to be clamped in the clamping groove 221. The axial edge of the middle iron frame body 11 abuts against the inner wall of the side plate 22. Compared with the structure where the middle iron frame body 11 covers the side plate 22, the size of the middle iron frame body 11 is significantly reduced, further reducing the cost of the middle iron frame 1. At the same time, the connection between the clamping ear 12 and the clamping groove 221 is located at the side plate 22, which does not affect the tight installation of the middle iron frame body 11 and the side plate 22.

[0043] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A middle iron frame, characterized in that, Comprising: A middle iron frame body (11), a clamping ear (12) is convexly provided on the circumferential edge of the middle iron frame body (1), and the clamping ear (12) inclines downward compared with the middle iron frame body (11).

2. The iron frame according to claim 1, characterized in that: The downward inclination angle of the clamping ear (12) compared with the middle iron frame body (11) is less than 45°.

3. The iron frame according to claim 1, wherein: Avoidance holes (111) are formed on both sides of the middle iron frame body (11) corresponding to the clamping ear (12).

4. The iron frame according to claim 1, characterized in that: A plurality of the clamping ears (12) are provided, and the plurality of clamping ears (12) are equidistantly arranged on the circumferential edge of the middle iron frame body (11).

5. The iron frame according to claim 4, wherein: The middle iron frame body (11) includes a first side frame, a second side frame, a third side frame and a fourth side frame that are sequentially connected to form an annular structure, and the clamping ears (12) are convexly provided on the outer edges of the first side frame, the second side frame, the third side frame and the fourth side frame.

6. An iron frame assembly structure, characterized in that, Comprising: A die-casting part (2) and the middle iron frame (1) according to any one of claims 1-5.

7. The iron frame assembly structure according to claim 6, characterized in that: The shape of the die-casting part (2) is adapted to the shape of the middle iron frame (1), and the middle iron frame (1) is detachably covered on the die-casting part (2).

8. The iron frame assembly structure according to claim 7, characterized in that: The die-casting part (2) includes a bottom plate (21) and side plates (22), the side plates (22) are arranged on the circumferential edge of the bottom plate (21) and extend upward, and the middle iron frame (1) is detachably connected to the side plates (22).

9. The iron frame assembly structure according to claim 8, characterized in that: A clamping groove (221) adapted to the clamping ear (12) is formed on the side plate (22), and the clamping ear (12) is clamped in the clamping groove (221).

10. The iron frame assembly structure according to claim 9, characterized in that: The side plate (22) is located outside the middle iron frame body (11), the clamping groove (221) is formed at the top of the inner wall of the side plate (22), and the clamping ear (12) protrudes outward from the circumferential edge of the middle iron frame body (11) toward the side plate (22) to be clamped in the clamping groove (221).

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