A chassis device

Abstract

The utility model discloses a kind of machine case equipment, including shell, support plate and PCB board, the support plate is fixedly connected with PCB board, the shell is equipped with guide groove for being inserted with support plate and being matched, first gap is formed between the side of support plate and the inner wall of guide groove, the both sides of support plate are equipped with first protrusion, when support plate is inserted into guide groove, the first protrusion is matched with the inner wall of guide groove and is interference fit.The utility model has the advantages of simple structure, good stability and low cost.

Description

Technical Field

[0001] This utility model relates to the field of audio and video transmission equipment technology, and in particular to a chassis device. Background Technology

[0002] In the field of audio and video transmission equipment, existing box-type products on the market typically use a metal support plate to fix multiple PCB boards into a single unit. This assembly is then inserted into a housing, and the PCB boards are positioned by locking the front and rear baffles. However, to facilitate assembly, the structural design usually leaves a certain gap between the PCB boards and their support plates and the sides of the housing. This gap, however, prevents the PCB components from being fully secured during use. When the entire device is subjected to vibration or shaking, slight movement and noise may occur. Attempting to eliminate the gap by increasing the width of the PCB boards or support plates significantly increases assembly difficulty and may even prevent the insertion operation from being completed.

[0003] Currently, a common solution for existing products is to attach a black foam pad to the rear panel, using the foam to restrict the front and rear movement of the casing and the PCB board, thus solving the problem of shaking and noise. However, this solution increases the amount of foam, requiring additional material costs and assembly time, leading to increased overall costs. Furthermore, the foam softens over time or in high-temperature environments, causing the shaking and noise problem to reappear. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a chassis device with simple structure, good stability and low cost.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A chassis device includes a housing, a support plate, and a PCB board. The support plate is fixedly connected to the PCB board. The housing has a guide groove for inserting and engaging with the support plate. A first gap is formed between the side of the support plate and the inner wall of the guide groove. Both sides of the support plate have first protrusions. When the support plate is inserted into the guide groove, the first protrusions are interference-fitted with the inner wall of the guide groove.

[0006] As a further improvement to the above technical solution: The first protrusion is located at the bottom of the side of the support plate.

[0007] The width of the first gap is 0.15mm to 0.25mm.

[0008] The interference fit between the first protrusion and the guide groove is 0.15mm to 0.25mm.

[0009] The support plate is also provided with a second protrusion on both sides, and a second gap is formed between the second protrusion and the inner wall of the guide groove. The width of the second gap is smaller than the width of the first gap.

[0010] The second protrusion is spaced in multiple places.

[0011] The width of each of the second gaps increases sequentially along the insertion direction of the support plate.

[0012] Both the first protrusion and the second protrusion are triangular.

[0013] Both the first protrusion and the second protrusion are arc-shaped.

[0014] The front end of the housing is covered with a front panel, and the rear end of the housing is covered with a rear baffle.

[0015] Compared with the prior art, the advantages of this utility model are: 1. The chassis of this utility model, through the clearance fit between the support plate and the guide groove, and the interference fit between the first protrusion and the guide groove, allows the support plate to be smoothly inserted into the guide groove and to be firmly fixed in the guide groove. The structure is simple and has good stability. The first protrusion is set on the support plate, which can fix the PCB board without modifying the structure of the PCB board, preventing the PCB board from shaking, and without the need to add extra foam or other materials, resulting in low cost.

[0016] 2. In the chassis of this utility model, since a second gap is formed between the second protrusion and the inner wall of the guide groove, the second protrusion does not affect the insertion of the support plate, and can also cause interference between the side of the support plate and the inner wall of the guide groove, thus preventing the upper and middle areas of the support plate from shaking, resulting in better stability.

[0017] 3. In the initial stage of the insertion process of the support plate, the second protrusion of the chassis equipment of this utility model has less interference with the inner wall of the guide groove, which facilitates insertion. As the insertion depth increases, the interference gradually increases, which further enhances the stability of the support plate in the guide groove, effectively prevents the support plate from shaking in the shell, and improves the stability and reliability of the entire chassis equipment. Attached Figure Description

[0018] Figure 1 This is an exploded structural diagram of the chassis equipment of this utility model.

[0019] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0020] Figure 3 This is a top view of the support plate in the chassis equipment of this utility model.

[0021] The labels in the diagram represent: 1. Housing; 11. Guide groove; 12. Rear baffle; 13. Front panel; 2. Support plate; 21. First protrusion; 22. Second protrusion; 3. PCB board. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1 to 3 As shown, the chassis device of this embodiment includes a housing 1, a support plate 2 and a PCB board 3. The support plate 2 and the PCB board 3 are fixedly connected. The housing 1 is provided with a guide groove 11 for inserting and cooperating with the support plate 2. A first gap is formed between the side of the support plate 2 and the inner wall of the guide groove 11. Both sides of the support plate 2 are provided with a first protrusion 21. When the support plate 2 is inserted into the guide groove 11, the first protrusion 21 is interference-fitted with the inner wall of the guide groove 11.

[0027] In this embodiment, when the chassis device is in use, after the support plate 2 and the PCB board 3 are fixedly connected, the support plate 2 and the PCB board 3 are inserted into the housing 1 together. Since a first gap is formed between the side of the support plate 2 and the inner wall of the guide groove 11, the support plate 2 and the guide groove 11 are in clearance fit, and the support plate 2 can be inserted smoothly. When the support plate 2 is fully inserted into the guide groove 11, the first protrusion 21 is in interference fit with the inner wall of the guide groove 11, so that the support plate 2 is stuck in the housing 1. Since the PCB board 3 is fixedly connected to the support plate 2, the PCB board 3 is indirectly fixed in the housing 1. The chassis device in this embodiment uses a clearance fit between the support plate 2 and the guide groove 11, and an interference fit between the first protrusion 21 and the guide groove 11, so that the support plate 2 can be smoothly inserted into the guide groove 11 and can be firmly fixed in the guide groove 11. The structure is simple and has good stability. The first protrusion 21 is set on the support plate 2, which can fix the PCB board 3 without modifying the structure of the PCB board 3, preventing the PCB board 3 from shaking, and without the need to add extra foam or other materials, resulting in low cost.

[0028] Furthermore, in this embodiment, the first protrusion 21 is located at the bottom of the side of the support plate 2. By positioning the first protrusion 21 at the bottom of the side of the support plate 2, the first protrusion 21 will only make an interference fit with the inner wall of the guide groove 11 when the support plate 2 is fully inserted into the guide groove 11, ensuring smooth insertion of the support plate 2 and the PCB board 3.

[0029] Furthermore, in this embodiment, the width of the first gap is 0.15mm to 0.25mm.

[0030] Furthermore, in this embodiment, the interference fit between the first protrusion 21 and the guide groove 11 is 0.15mm to 0.25mm.

[0031] Furthermore, in this embodiment, a second protrusion 22 is provided on both sides of the support plate 2. A second gap is formed between the second protrusion 22 and the inner wall of the guide groove 11, and the width of the second gap is smaller than the width of the first gap. Since a second gap is formed between the second protrusion 22 and the inner wall of the guide groove 11, the second protrusion 22 does not affect the insertion of the support plate 2, and can also prevent interference between the side of the support plate 2 and the inner wall of the guide groove 11, thus preventing wobbling in the upper and middle areas of the support plate 2 and improving stability.

[0032] Furthermore, in this embodiment, multiple second protrusions 22 are provided at intervals along the side of the support plate 2.

[0033] Furthermore, in this embodiment, the width of each second gap increases sequentially along the insertion direction of the support plate 2. This design ensures that during the insertion process of the support plate 2, the interference between the second protrusion 22 and the inner wall of the guide groove 11 is small in the initial stage, facilitating insertion. As the insertion depth increases, the interference gradually increases, further enhancing the stability of the support plate 2 within the guide groove, effectively preventing the support plate 2 from shaking within the housing 1, and improving the stability and reliability of the entire chassis equipment.

[0034] Furthermore, in this embodiment, both the first protrusion 21 and the second protrusion 22 are triangular, which facilitates processing. Of course, in other embodiments, the first protrusion 21 and the second protrusion 22 can also be arc-shaped, which can improve the structural strength of the protrusion and reduce the scratch damage to the inner wall of the guide groove 11 when inserted into the guide groove 11.

[0035] Furthermore, in this embodiment, the front end of the housing 1 is covered with a front panel 13, and the rear end of the housing 1 is covered with a rear baffle 12.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the spirit and technical solution of the present utility model. Therefore, any simple modifications, equivalent substitutions, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A chassis device, characterized in that: The device includes a housing (1), a support plate (2), and a PCB board (3). The support plate (2) is fixedly connected to the PCB board (3). The housing (1) is provided with a guide groove (11) for inserting and engaging with the support plate (2). A first gap is formed between the side of the support plate (2) and the inner wall of the guide groove (11). Both sides of the support plate (2) are provided with a first protrusion (21). When the support plate (2) is inserted into the guide groove (11), the first protrusion (21) is interference-fitted with the inner wall of the guide groove (11).

2. The chassis device according to claim 1, characterized in that: The first protrusion (21) is located at the bottom of the side of the support plate (2).

3. The chassis device according to claim 1, characterized in that: The width of the first gap is 0.15mm to 0.25mm.

4. The chassis device according to claim 1, characterized in that: The interference fit between the first protrusion (21) and the guide groove (11) is 0.15mm to 0.25mm.

5. The chassis equipment according to claim 1, characterized in that: The support plate (2) is provided with a second protrusion (22) on both sides. A second gap is formed between the second protrusion (22) and the inner wall of the guide groove (11). The width of the second gap is smaller than the width of the first gap.

6. The chassis device according to claim 5, characterized in that: The second protrusion (22) is provided in multiple intervals.

7. The chassis device according to claim 6, characterized in that: The width of each of the second gaps increases sequentially along the insertion direction of the support plate (2).

8. The chassis device according to claim 5, characterized in that: The first protrusion (21) and the second protrusion (22) are both triangular.

9. The chassis device according to claim 5, characterized in that: The first protrusion (21) and the second protrusion (22) are both arc-shaped.

10. The chassis equipment according to any one of claims 1 to 9, characterized in that: The front end of the housing (1) is covered with a front panel (13), and the rear end of the housing (1) is covered with a rear baffle (12).

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