CN216794188U

CN216794188U - USB changes AV video switching box

Info

Publication number: CN216794188U
Application number: CN202220006652.6U
Authority: CN
Inventors: 涂胡平
Original assignee: GUANGZHOU ZHIHANG ELECTRONIC TECHNOLOGY CO LTD
Current assignee: GUANGZHOU ZHIHANG ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-06-21
Anticipated expiration: 2032-01-04

Abstract

The utility model discloses a USB-AV video switching box, which comprises an upper cover, a bottom cover, a circuit board, an AV interface terminal and a USB interface terminal, wherein a downward extending bulge is arranged on the periphery of the upper cover, a groove with an upward opening is arranged on the periphery of the bottom cover, the upper cover and the bottom cover are connected to form a containing cavity, a first installing port and a second installing port, the bulge extends into the groove to be in interference fit with the groove, the circuit board is installed in the containing cavity, the AV interface terminal is installed on the first installing port, the USB interface terminal is installed on the second installing port, and the AV interface terminal and the USB interface terminal are both connected with the circuit board. In the embodiment, the upper cover and the bottom cover are fixed in an interference fit mode through the protrusions and the grooves, the generation and the installation are more convenient, the circuit board only needs to be placed in the bottom cover during installation, the upper cover is covered, the practicability is high, the development period is short, and the production efficiency is high.

Description

USB changes AV video switching box

Technical Field

The utility model relates to the technical field of vehicle-mounted video switching, in particular to a USB-AV video switching box.

Background

With the rapid development of video technologies, users increasingly rely on various video services, such as video conferences, video calls, and the like. In various video services, the video formats corresponding to different interfaces are different, so that a requirement for video transfer between different interfaces often arises.

In the development of video technology, vehicle-mounted entertainment is also gradually valued by people. The vehicle-mounted host entertainment navigation system is an important component in a vehicle machine, the functions of the host are more and more rich and powerful, the space for refitting in the vehicle is larger, and more vehicle owners like increasing a rear row entertainment system and a ceiling display. Among them, video input and switching are among the most important interfaces. However, the existing vehicle-mounted video adapter box is large in size and not attractive in design, a bottom cover is fixed on some video adapter boxes on the market through screws or fastening positions, the assembling time is long, the procedures are complex, the generation efficiency is low, the mold opening cost of the box is high, the occupied space is large when the box is installed in a vehicle, the box is not well placed, the bottom cover is fixed through the screws or the fastening positions during production, and the after-sale dismounting is troublesome.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide the USB-to-AV video adapter box, the upper cover and the lower cover of the USB-to-AV video adapter box are not required to be fixed by screws or buckling positions, the assembly is simple, and the mold cost is low.

The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a USB-AV video switching box, which comprises an upper cover, a bottom cover, a circuit board, an AV interface terminal and a USB interface terminal, wherein a downward extending bulge is arranged on the periphery of the upper cover, a groove with an upward opening is arranged on the periphery of the bottom cover, the upper cover and the bottom cover are connected to form a containing cavity, a first installing port and a second installing port, the bulge extends into the groove to be in interference fit with the groove, the circuit board is installed in the containing cavity, the AV interface terminal is installed on the first installing port, the USB interface terminal is installed on the second installing port, and the AV interface terminal and the USB interface terminal are both connected with the circuit board.

In the present invention, as an optional embodiment, at least two upwardly extending limiting posts are disposed in the bottom cover, the circuit board is mounted between the two limiting posts, and the limiting posts are in close contact with the circuit board to limit the movement of the circuit board.

In the utility model, as an optional embodiment, the number of the limiting columns is three, the three limiting columns are distributed in a triangular shape, and the three limiting columns are respectively arranged at positions corresponding to three sides of the circuit board.

In the utility model, as an optional embodiment, the number of the limiting columns is four, four limiting columns are distributed in a square shape, and the four limiting columns are distributed on the circuit board, wherein four sides of the circuit board correspond to the positions of the four limiting columns.

In the utility model, as an optional embodiment, the upper cover is provided with a locking column, the limiting columns are provided with inner holes, and the locking column extends into the inner holes when the upper cover is connected with the bottom cover.

In the utility model, as an optional embodiment, a limit block is arranged on the bottom cover, and the circuit board is mounted above the limit block.

In the present invention, as an optional embodiment, the number of the limiting blocks is 4.

In the utility model, as an optional embodiment, a clamping column is arranged on the upper cover, the circuit board is installed between the limiting block and the clamping column, and the clamping column and the limiting block are used for preventing the circuit board from loosening in the height direction.

In the present invention, as an alternative embodiment, the number of the chucking posts is 4.

In the present invention, as an alternative embodiment, the outer surface of the upper cover and/or the bottom cover is provided with a concave curved surface.

Compared with the prior art, the utility model has the beneficial effects that:

in the USB-AV video switching box provided by the utility model, the upper cover and the bottom cover are fixed in an interference fit manner through the protrusions and the grooves, so that the USB-AV video switching box is more convenient to generate and install, only the circuit board needs to be placed in the bottom cover when the USB-AV video switching box is installed, the upper cover is covered, the USB-AV video switching box is strong in practicability, short in development period and high in production efficiency.

Drawings

Fig. 1 is a schematic overall structure diagram of a USB to AV video adapter according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a bottom cover, a circuit board, an AV interface terminal, and a USB interface terminal of a USB to AV video adapter according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a bottom cover and a circuit board of a USB to AV video adapter according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a bottom cover of a USB to AV video adapter according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an upper cover of a USB to AV video adapter according to an embodiment of the present invention.

In the figure: 1. an upper cover; 11. a protrusion; 12. a locking post; 13. clamping the column; 2. a bottom cover; 21. a groove; 22. a limiting column; 23. a limiting block; 3. a circuit board; 4. an AV interface terminal; 5. a USB interface terminal; 6. a concave curved surface.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict. Except as specifically noted, the materials and equipment used in this example are commercially available. Examples of embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.

In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a connection through an intervening medium, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The embodiment of the application provides a USB changes AV video switching box, it is fixed to carry out interference fit through protruding and recess between upper cover and the bottom, and it is more convenient to generate and install, only needs during the installation to place the circuit board in the bottom, cover the upper cover can, the practicality is strong, development cycle is short, and production efficiency is high.

Referring to fig. 1-5, the USB to AV video adapter (hereinafter also referred to as video adapter) provided in this embodiment includes an upper cover 1, a bottom cover 2, a circuit board 3, an AV interface terminal 4, and a USB interface terminal 5, where the upper cover 1 is used to connect with the bottom cover 2 to form a box body of the video adapter. The circuit board 3 is installed in the box body, the AV interface terminal 4 and the USB interface terminal 5 are both connected with the circuit board 3, and it can be understood that the connection relationship between the AV interface terminal 4 and the USB interface terminal 5 and the circuit board 3 is electrical connection, thereby realizing the transfer transmission of video data at different interfaces. Specifically, the AV interface terminal 4 and the USB interface terminal 5 each have two ends, one of which is used for connecting with the circuit board 3, and the other of which is electrically connected with an external device.

Be equipped with arch 11 at the periphery of upper cover 1, arch 11 downwardly extending, the periphery of bottom 2 is equipped with recess 21, and the opening of recess 21 is up, and recess 21 matches with arch 11 and corresponds, forms when upper cover 1 is connected with bottom 2 and holds the chamber to arch 11 stretches into in the recess 21 with recess 21 interference fit this moment. The upper cover 1 and the bottom cover 2 are connected to form a first mounting opening and a second mounting opening. Specifically, two arc-shaped notches are arranged on the upper cover 1, two arc-shaped notches are also arranged at the corresponding positions of the lower cover 2 and the upper cover 1, when one of the arc-shaped notches of the upper cover 1 is matched with one of the arc-shaped notches of the corresponding lower cover 2, a first mounting opening is formed, and when the other arc-shaped notch of the upper cover 1 is matched with the arc-shaped notch of the corresponding lower cover 2, a second mounting opening is formed. The AV interface terminal 4 is installed at the first installing port, the USB interface terminal 5 is installed at the second installing port, and a part of the AV interface terminal 4 is positioned in the containing cavity, a part of the AV interface terminal extends out of the containing cavity, and a part of the corresponding USB interface terminal 5 is also positioned in the containing cavity, and a part of the corresponding USB interface terminal extends out of the containing cavity.

In order to prevent the circuit board 3 mounted in the receiving cavity from easily loosening and moving during use, a limiting column 22 is provided in the bottom cover 2, and the limiting column 22 can limit the circuit board 3 to be fixed at a set position. Wherein, the quantity of spacing post 22 has two at least, and spacing post 22 upwards extends, and circuit board 3 installs between the spacing post 22 of two at least to spacing post 22 and circuit board 3 closely butt, thereby spacing post 22 can restrict circuit board 3 and remove.

Further, the number of the limiting columns 22 is three, the three limiting columns 22 are distributed in a triangular shape, and the three limiting columns 22 are respectively arranged on the circuit board 3 at positions corresponding to three sides of the circuit board. For example, the circuit board 3 has a square shape, and three positioning posts 22 are provided on three sides of the circuit board 3 to clamp the three sides of the circuit board 3 and prevent the circuit board 3 from moving. The three limiting posts 22 can limit the circuit board 3 in three directions compared with the two limiting posts 22, so that the circuit board 3 is better fixed and the circuit board 3 is prevented from moving.

In another example, the number of the limiting columns 22 is four, four limiting columns 22 are distributed in a square shape, and the four limiting columns 22 are distributed on the circuit board 3, wherein four sides of the circuit board correspond to the positions. The four restraint posts 22 may be symmetrically disposed. For example, when the circuit board 3 has a square structure, the four limiting posts 22 respectively correspond to each edge of the circuit board 3 to limit the circuit board 3 in four directions.

The limiting columns 22 of the embodiment play a role in limiting the movement of the circuit board 3, further for better fixing the installation between the upper cover 1 and the bottom cover 2 and further enhancing the effect of limiting the circuit board 3, inner holes are formed in the limiting columns 22, the openings of the inner holes face upwards, and inner holes are formed corresponding to each limiting column 22. In addition, the locking column 12 is arranged on the upper cover 1, the position of the locking column 12 corresponds to the position of the limiting column 22, and accurately corresponds to the position of the inner hole, so that when the upper cover 1 is connected with the bottom cover 2, the locking column 12 can stretch into the inner hole, the upper cover 1 is fixedly connected with the bottom cover 2 in a tight mode, and meanwhile, the circuit board 3 is further prevented from moving.

In mounting the circuit board 3, in order to define a mounting position of the circuit board 3 in the height direction, a stopper 23 is further provided on the bottom cover 2, and the circuit board 3 is mounted above the stopper 23. The limiting block 23 has a certain height, the top surface of the limiting block 23 highly conforms to the installation height set by the circuit board 3, and the circuit board 3 is placed on the limiting block 23 when the circuit board 3 is installed, so that the limiting block 23 ensures that the installation position of the circuit board 3 is more accurate.

Further, the quantity of stopper 23 sets up to four to guarantee that circuit board 3 that can be better installs steadily, in order to place circuit board 3 removal in the direction of height, still set up chucking post 13 on upper cover 1, the preferred can set up chucking post 13 to correspond with stopper 23 position, installs circuit board 3 between stopper 23 and chucking post 13 during the installation chucking post 13 with stopper 23 is used for preventing circuit board 3 is not hard up in the direction of height. The number of clamping studs 13 is likewise preferably 4. However, the vertical correspondence between the positions of the clamping column 13 and the position of the limiting block 23 is not the only optional installation mode, and actually, the clamping column 13 and the limiting block 23 can be arranged in a staggered manner.

In the embodiment, the outer surface of the upper cover 1 and/or the lower cover 2 is provided with a concave curved surface 6. The concave curved surface 6 is preferably arranged in the middle of the upper cover 1 and the bottom cover 2, so that a user can conveniently hold the video adapter box for installation and other operations.

While only certain components and embodiments of the present application have been illustrated and described, many modifications and changes may occur to those skilled in the art without departing substantially from the scope and spirit of the appended claims, for example: variations in the size, dimensions, structure, shape and proportions of the various elements, mounting arrangements, use of materials, colours, orientations and the like.

The above embodiments are only preferred embodiments of the present invention, and the scope of the embodiments of the present invention should not be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the embodiments of the present invention are within the scope of the claims of the embodiments of the present invention.

Claims

1. The utility model provides a USB changes AV video switching box which characterized in that, includes upper cover, bottom, circuit board, AV interface terminal and USB interface terminal, the border of upper cover is equipped with downwardly extending's arch, the border of bottom is equipped with opening recess up, the upper cover is connected with the bottom and is formed and hold chamber, first installing port and second installing port, just the arch stretch into in the recess with recess interference fit, the circuit board is installed hold the intracavity, AV interface terminal installs on first installing port, USB interface terminal installs on the second installing port, just AV interface terminal with USB interface terminal all with the circuit board is connected.

2. The USB to AV video adapter of claim 1, wherein at least two upwardly extending posts are disposed in the bottom cover, the circuit board is mounted between the at least two posts, and the posts are in close contact with the circuit board to limit the movement of the circuit board.

3. The USB to AV video adapter of claim 2, wherein the number of the three limiting posts is three, the three limiting posts are distributed in a triangle, and the three limiting posts are respectively disposed on the circuit board at positions corresponding to three sides of the circuit board.

4. The USB-AV video adapter according to claim 2, wherein the number of the limiting posts is four, four of the limiting posts are distributed in a square shape, and the four limiting posts are distributed on the circuit board, wherein four sides of the four limiting posts correspond to the positions of the four limiting posts.

5. The USB to AV video adapter of claim 2 wherein the upper cover has a locking post thereon, the limiting posts have inner holes, and the locking post extends into the inner hole when the upper cover is connected to the bottom cover.

6. The USB to AV video adapter of claim 1, wherein the bottom cover has a stopper, and the circuit board is mounted above the stopper.

7. The USB-to-AV video adapter according to claim 6, wherein the number of the limiting blocks is 4.

8. The USB-to-AV video adapter according to claim 6, wherein a clamping post is disposed on the upper cover, the circuit board is mounted between the limiting block and the clamping post, and the clamping post and the limiting block are used for preventing the circuit board from loosening in the height direction.

9. The USB to AV video adapter of claim 8 wherein the number of said clamping posts is 4.

10. The USB to AV video adapter of claim 1, wherein the outer surface of the top cover and/or the bottom cover is provided with a concave curved surface.