Wireless screen projection transmitter

Abstract

The utility model provides a wireless projection transmitter, including casing, interface end, PCB board, the PCB board includes main control board, power board, power board and main control board are set side by side, one end of interface end is interface structure, and the other end is connected with power board electrically, power board and main control board electric connection, casing includes upper casing, lower casing, upper casing, lower casing fixed connection, upper casing, lower casing form the cavity, be equipped with interface opening on lower casing, interface structure stretches out from interface opening, power board and main control board place in the cavity, compared with prior art, the utility model provides a wireless projection transmitter, double -deck PCB board design reduces product space, provide a new device connection structure to double -deck circuit board, and it is smaller and easier to carry, and the heat dissipation is good, and the degree of beauty is high.

Description

Technical Field

[0001] This utility model relates to the field of audio, specifically to a wireless screen projection transmitter. Background Technology

[0002] Widely used in the field of wireless screen projection in the office, the transmission equipment includes a transmitter and a receiver. The transmitter and receiver are wirelessly connected, so a wireless screen projection transmitter is required.

[0003] Existing transmitters, including power circuit boards and main control boards, integrate all existing functions onto a single PCB board, resulting in a large PCB board footprint. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology and optimize the existing technology, so as to provide a wireless screen projection transmitter, thereby solving the above-mentioned problems.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a wireless screen projection transmitter, including a housing, an interface terminal, and a PCB board. The PCB board includes a main control board and a power board, which are arranged side by side. One end of the interface terminal is an interface structure, and the other end is electrically connected to the power board. The power board is electrically connected to the main control board. The housing includes an upper housing and a lower housing, which are fixedly connected and form a receiving cavity. The lower housing has an interface opening, and the interface structure extends out of the interface opening. The power board and the main control board are placed in the receiving cavity.

[0007] As a preferred embodiment of this utility model, a limiting part is provided between the main control board and the upper housing.

[0008] As a preferred embodiment of this utility model, the bottom surface of the lower housing corresponding to the power board is provided with heat dissipation holes.

[0009] As a preferred embodiment of this utility model, the bottom surface is provided with an inner groove facing upward towards the shell, and the heat dissipation holes are distributed on the inner groove.

[0010] As a preferred embodiment of this utility model, a receiving groove is provided on the outer side of the upper shell, and a decorative element is provided in the receiving groove.

[0011] As a preferred embodiment of this utility model, the upper housing is provided with a first engaging mechanism, and the inner sidewall of the lower housing is provided with a second engaging mechanism corresponding to the first engaging mechanism.

[0012] As a preferred embodiment of this utility model, the first engaging mechanism includes a fixing groove provided on the side of the upper housing and a first entry inclined edge provided on the lower side of the fixing groove; the second engaging mechanism is an engaging plate provided on the inner side wall of the lower housing, the engaging plate is provided with a second entry inclined edge, and the engaging plate enters into the fixing groove under the cooperation of the first entry inclined edge and the second entry inclined edge.

[0013] As a preferred embodiment of this utility model, a limiting post is provided on the inner side wall of the lower housing, and a limiting groove corresponding to the limiting post is provided on the upper housing.

[0014] The advantages of this utility model are: compared with the prior art, this utility model provides a wireless screen projection transmitter. The double-layer PCB board design reduces product space and provides a new device connection structure for the double-layer circuit board, which is smaller, easier to carry, has better heat dissipation, and is more aesthetically pleasing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 Schematic diagram of the utility model Figure 1 ;

[0017] Figure 2 Schematic diagram of the utility model Figure 2 ;

[0018] Figure 3 Schematic diagram of the utility model Figure 3 ;

[0019] Figure 4 Schematic diagram of the utility model Figure 4 ;

[0020] Figure 5 Schematic diagram of the utility model Figure 5 ;

[0021] Figure 6 Schematic diagram of the utility model Figure 6 ;

[0022] Figure 7 Schematic diagram of the utility model Figure 7 . Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of the utility model more apparent and understandable, the technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining the utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings, not the entire structure. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the utility model.

[0024] In this utility model, the terms "outer," "inner," "one end," "left," and "right," etc., are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, including a series of connection relationships, which can be achieved by those skilled in the art through various technical means, is also equivalent to the scope of protection in this embodiment.

[0025] In the description of the embodiments of the utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Please note that for technical features such as "fitting" and "fixing," those skilled in the art can understand them based on the description of other technical features and in conjunction with conventional knowledge in the field. The principle of the wireless screen projection transmitter is prior art and will not be described in detail in this utility model. The main control board 31, the power board 32, and the interaction with the display device are all prior art and will not be described in this utility model. Those skilled in the art can understand them in conjunction with existing technology.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the utility model. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] like Figure 1-7 As shown,

[0028] This utility model provides a wireless screen projection transmitter, including a housing 1, an interface terminal 2, and a PCB board 3. The PCB board 3 includes a main control board 31 and a power board 32, which are arranged side by side with the main control board 31. One end of the interface terminal 2 is an interface structure 21, and common interface structures include USB interface, USB Type-A, USB Type-B, USB Type-C, and USB... Mini, etc., are used to connect with terminal devices such as computers, mobile phones, tablets, and projectors; the other end is electrically connected and fixed to the power board. The power board 31 is electrically connected to the main control board 31. The power board 32 is directly fixed to the interface terminal 2 on one side, and connected to the main control board 31 through an electrical connection on the other side. This is because the main control board 31 has functional chips such as WiFi and converters, which limit the space occupied and makes it inconvenient to directly connect the main control board 31 to the interface terminal 2. This utility model reduces the space occupied by dividing a conventional circuit board into two circuit boards. The interface terminal 2, power board 32, and main control board 31 are connected in sequence to solve the problem of minimizing the space occupied when dividing into two circuit boards. This utility model also limits the placement structure of the two circuit boards after division. Specifically, the housing 1 includes an upper housing 11 and a lower housing 12. The upper housing 11 and the lower housing 12 are fixedly connected. The upper housing 11 and the lower housing 12 form a receiving cavity 13. The lower housing 11 has an interface opening 121. The interface structure 21 is located from the interface opening 121. 21 extends outwards, and the power board 32 and main control board 33 are placed inside the receiving cavity 13. In the above scheme, the receiving cavity 13 of the PCB board 3 may move, resulting in structural instability. A limiting part 111 is provided between the main control board 31 and the upper housing 11. The specific limiting method can be filling, snap-fit, or bolt structure. The limiting part 111 prevents the PCB board 3 from moving inside the receiving cavity 13. In order to better solve the heat dissipation problem, the bottom surface 122 of the lower housing 12 and the power board 32 are provided with heat dissipation holes 123. The bottom surface 122 is provided with an inner groove 124 in the direction of the upper housing 11. The heat dissipation holes 123 are distributed on the inner groove 124. By designing the heat dissipation holes 123 on the inner groove 124, they are closer to the power board 32, resulting in better heat dissipation. At the same time, the heat dissipation holes 123 are partially hidden, making them more aesthetically pleasing. In order to better enhance the user experience, a receiving groove (not shown in the figure) is provided on the outer side of the upper housing. The receiving groove is provided with decorative parts, such as clocks, compasses, stickers, etc.

[0029] Based on the above embodiments, the upper shell 11 and the lower shell 12 can be fixed by bolts, adhesive, snap-fit, etc. This utility model provides a connection structure for the upper shell 11 and the lower shell 12. Specifically, the upper shell 11 is provided with a first engaging mechanism 111, and the inner wall 124 of the lower shell 12 is provided with a second engaging mechanism 1241 corresponding to the first engaging mechanism 111. The first engaging mechanism 111 includes a fixing groove 1111 on the side of the upper shell 11 and a first entry inclined edge 1112 on the lower side of the fixing groove 1111. The second engaging mechanism 1241 is an engaging plate 12411 disposed on the inner wall 124 of the lower shell 12, and the engaging plate 12411 is provided with a second entry inclined edge 124111. 12411 enters the fixing groove 1111 with the cooperation of the first entry inclined edge 1112 and the second entry inclined edge 124111. During installation, the upper housing 11 moves towards the lower housing 12. The first entry inclined edge 1112 below the fixing groove 1111 contacts the locking plate 12411. The design of the second entry inclined edge 124111 allows the upper housing 11 to move better towards the lower housing 12. When the locking plate 12411 enters the fixing groove 1111, a fixing effect is achieved. In order to better facilitate the installation of the upper housing 11 and the lower housing 12, the inner side wall of the lower housing is provided with a limiting post 1242, and the upper housing 11 is provided with a limiting groove 112 corresponding to the limiting post 1242. The upper housing 11 moves along the direction of the limiting post 1242 through the limiting groove 112.

[0030] The advantages of this utility model are: compared with the prior art, this utility model provides a wireless screen projection transmitter. The double-layer PCB board design reduces product space and provides a new device connection structure for the double-layer circuit board, which is smaller, easier to carry, has better heat dissipation, and is more aesthetically pleasing.

[0031] In summary, the technical solutions in the above embodiments can be combined with each other, and other combinations not described in this specification should also be within the protection scope of the utility model.

Claims

1. A wireless screen projection transmitter, comprising a housing, an interface terminal, and a PCB board, characterized in that... The PCB board includes a main control board and a power supply board, which are arranged side by side. One end of the interface is an interface structure, and the other end is electrically connected to the power supply board. The power supply board is electrically connected to the main control board. The housing includes an upper housing and a lower housing, which are fixedly connected and form a receiving cavity. The lower housing has an interface opening, and the interface structure extends out from the interface opening. The power supply board and the main control board are placed in the receiving cavity.

2. The wireless screen projection transmitter according to claim 1, characterized in that... A limiting part is provided between the main control board and the upper housing.

3. The wireless screen projection transmitter according to claim 1, characterized in that... The lower housing has heat dissipation holes on its bottom surface corresponding to the power board.

4. A wireless screen projection transmitter according to claim 3, characterized in that... The bottom surface is provided with an inner groove facing upwards towards the housing, and the heat dissipation holes are distributed on the inner groove.

5. A wireless screen projection transmitter according to claim 1, characterized in that... The outer side of the upper shell is provided with a receiving groove, and a decorative element is provided in the receiving groove.

6. A wireless screen projection transmitter according to claim 1, characterized in that... The upper housing is provided with a first engaging mechanism, and the inner wall of the lower housing is provided with a second engaging mechanism corresponding to the first engaging mechanism.

7. A wireless screen projection transmitter according to claim 6, characterized in that... The first engaging mechanism includes a fixing groove on the side of the upper housing and a first entry inclined edge on the lower side of the fixing groove; the second engaging mechanism is an engaging plate on the inner wall of the lower housing, the engaging plate is provided with a second entry inclined edge, and the engaging plate enters into the fixing groove under the cooperation of the first entry inclined edge and the second entry inclined edge.

8. A wireless screen projection transmitter according to claim 7, characterized in that... The inner wall of the lower housing is provided with a limiting post, and the upper housing is provided with a limiting groove corresponding to the limiting post.

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