Screen transmitter

Abstract

The present application relates to the technical field of data transmission apparatuses. Provided is a screen transmitter. The screen transmitter comprises a housing, a circuit board and a screen transmission wire. A wire passage hole is provided on a first side shell, and a connecting head of the screen transmission wire comprises a fitting portion and a limiting portion that are connected to each other, with the limiting portion being configured to abut against the first side shell to limit the fitting portion in the wire passage hole, thereby pre-fixing the screen transmission wire. The first side shell covers a second shell, thereby improving the appearance quality and stability of the screen transmitter.

Description

Screen transmitter

[0001] The present application claims priority to the Chinese patent application No. 202410543004.8, filed on May 01, 2024, the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of data transmission equipment, in particular to a screen transmitter. BACKGROUND

[0003] The screen transmitter, also known as wireless screen transmitter, is mainly used to synchronize the content on one screen to another screen. Some use scenarios of the screen transmitter are: synchronizing the content on a computer screen to a tablet computer or a projection screen, synchronizing the content on a mobile phone screen to a touch all-in-one machine, etc.

[0004] The screen transmitter generally includes a face shell, a bottom shell, a screen transmission wire, a PCB board and the like. In the related art, recesses are respectively arranged on the screen transmission wire and the face shell and the bottom shell are clamped, and the rib positions on the side edges of the face shell and the bottom shell are respectively clamped with the recesses on the screen transmission wire. Due to batch production, there is a step difference (the step difference refers to the matching deviation of the face shell and the bottom shell at the parting surface position due to the machining precision deviation). TECHNICAL PROBLEM

[0005] There is a gap at the step difference position, which causes the base color of the material to be exposed at the gap, seriously affecting the appearance quality of the product. In addition, the screen transmission wire is fixed by being clamped together with the face shell and the bottom shell, and when the bottom shell is not assembled, the wire is prone to come off, the reverse installation operation is not convenient, and the assembly efficiency is low. TECHNICAL SOLUTION

[0006] The present application provides a screen transmitter, which aims to solve at least one of the above technical problems.

[0007] In one aspect, the present application provides a screen transmitter, which includes a housing, a circuit board and a screen transmission wire.

[0008] The housing includes a first shell and a second shell connected to each other, and a containing cavity is formed between the first shell and the second shell; the first shell includes a first main shell and a first side shell extending from the outer edge of the first main shell towards the second shell, and a wire passing hole is arranged on the first side shell; the second shell is located on the inner side of the first side shell, and the first side shell shields the second shell located therein.

[0009] The circuit board is arranged in the containing cavity.

[0010] The transmission screen wire includes an electrical connection part, a connecting body, and a connecting head connected with the connecting body, the electrical connection part is arranged in the accommodating cavity and connected with the circuit board; the connecting head includes a matching part and a limiting part connected with each other, the limiting part is arranged to abut against the first side shell to limit the matching part in the wire passing hole.

[0011] In some embodiments of the present application, the limiting part includes a first limiting surface arranged towards the first main shell, a second limiting surface arranged opposite to the first limiting surface, and a third limiting surface connecting the first limiting surface and the second limiting surface, the third limiting surface is arranged opposite to the wire passing hole, and the matching part is arranged at the third limiting surface and extends towards the direction where the wire passing hole is located; the first limiting surface abuts against the first main shell, the second limiting surface abuts against the second shell, and the third limiting surface abuts against the first side shell.

[0012] In some embodiments of the present application, the first main shell is provided with a plurality of protruding ribs on the side towards the first limiting surface, and the plurality of protruding ribs are arranged at intervals along the extension direction of the first limiting surface, and each of the protruding ribs abuts against the first limiting surface.

[0013] In some embodiments of the present application, the orthographic projection of the matching part is located in the third limiting surface.

[0014] In some embodiments of the present application, the matching part is embedded in the wire passing hole.

[0015] In some embodiments of the present application, the transmission screen device further includes a heat dissipation support arranged between the second shell and the circuit board, the heat dissipation support is provided with a plurality of first positioning parts, the limiting part is provided with a plurality of second positioning parts matched with the first positioning parts, the plurality of first positioning parts and the plurality of second positioning parts are arranged one by one, and the first positioning parts and the second positioning parts cooperate to limit the relative movement of the heat dissipation support and the limiting part.

[0016] In some embodiments of the present application, the limiting part includes a first limiting surface arranged towards the first main shell and a second limiting surface arranged opposite to the first limiting surface, and the first limiting surface abuts against the first main shell; the second limiting surface is provided with a heat dissipation support mounting groove at the end away from the matching part, the heat dissipation support mounting groove is used for accommodating and supporting the heat dissipation support, and the end of the second limiting surface close to the matching part abuts against the second shell.

[0017] In some embodiments of the present application, the first positioning part includes a positioning tab, and the second positioning part includes a positioning groove matched with the positioning tab.

[0018] In some embodiments of the present application, the second shell comprises a second main shell and a second side shell extending from the outer edge of the second main shell towards the first shell, the first side shell shielding the second side shell located therein, and the first side shell and the second side shell are snap-connected.

[0019] And / or, the first side shell extends to the edge of the second main shell at the end away from the first main shell.

[0020] In some embodiments of the present application, the second side shell is provided with a relief groove, the relief groove is arranged opposite to the wire passing hole; the limiting portion is at least partially accommodated in the relief groove; the limiting portion comprises a first limiting surface arranged towards the first main shell, a second limiting surface arranged opposite to the first limiting surface, and a third limiting surface connecting the first limiting surface and the second limiting surface; the first limiting surface abuts against the first main shell, the second limiting surface abuts against the bottom surface of the relief groove, and the third limiting surface abuts against the first side shell.

[0021] In some embodiments of the present application, the screen transmission device further comprises a heat dissipation bracket, the second shell is provided with an anti-lost hole, and the heat dissipation bracket is provided with a bracket groove, the bracket groove being arranged opposite to the anti-lost hole. Advantages

[0022] In the present application, the second shell is located on the inner side of the first side shell, and the first side shell shields the second shell located therein, that is, the first shell is used to assemble the second shell in the present application, thereby avoiding the problem of exposing the material color caused by the step difference between the first shell and the second shell in the related art, and improving the appearance quality and stability of the screen transmission device in the present application.

[0023] In addition, in the present application, the first side shell is provided with a wire passing hole, the connecting head of the screen transmission wire comprises a matching portion and a limiting portion connected to each other, and the limiting portion is configured to abut against the first side shell so that the matching portion is limited in the wire passing hole, that is, in the present application, the connecting head can be directly matched with the first side shell during assembly, so that the matching portion is limited in the wire passing hole, thereby realizing the pre-fixing of the screen transmission wire, and avoiding the problem of low assembly efficiency caused by the easy loosening of the screen transmission wire when the bottom shell is not assembled in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] FIG. 1 is a structural schematic diagram of one embodiment of a screen transmitter provided by the present application;

[0026] FIG. 2 is a structural schematic diagram of the screen transmitter in FIG. 1 from another perspective;

[0027] FIG. 3 is an exploded structural schematic diagram of the screen transmitter in FIG. 1;

[0028] FIG. 4 is a structural schematic diagram of one embodiment of a first shell provided by the present application;

[0029] FIG. 5 is a structural schematic diagram of the first shell in FIG. 4 from another perspective;

[0030] FIG. 6 is a structural schematic diagram of one embodiment of a heat dissipation support provided by the present application;

[0031] FIG. 7 is a structural schematic diagram of the heat dissipation support in FIG. 6 from another perspective;

[0032] FIG. 8 is an assembly structural schematic diagram of the first shell, screen transmitter wire and circuit board provided by the present application;

[0033] FIG. 9 is a partial enlarged structural schematic diagram of A in FIG. 8;

[0034] FIG. 10 is a partial assembly structural schematic diagram of the screen transmitter provided by the present application;

[0035] FIG. 11 is a structural schematic diagram of one embodiment of a second shell provided by the present application;

[0036] FIG. 12 is a structural schematic diagram of one embodiment of a screen transmitter wire provided by the present application;

[0037] FIG. 13 is a structural schematic diagram of the screen transmitter wire in FIG. 12 from another perspective;

[0038] BRIEF DESCRIPTION OF DRAWINGS: 10, screen transmitter; 100, shell; 110, first shell; 111, first main shell; 1111, convex rib; 1112, key mounting hole; 112, first side shell; 1121, wire passing hole; 1122, first side shell buckle; 113, reverse insertion bone; 114, circuit board support part; 115, first threaded hole; 120, second shell; 121, second main shell; 1211, anti-lost hole; 122, second side shell; 1221, avoiding groove; 1222, second side shell clamping groove; 130, accommodating cavity; 200, screen wire; 210, electrical connection part; 220, connector part; 221, matching part; 222, limiting part; 2221, first limiting surface; 2222, second limiting surface; 2222a, heat dissipation support bearing surface; 2222b, second shell matching surface; 2222c, heat dissipation support mounting groove; 2223, third limiting surface; 2224, second positioning part; 2225, limiting part groove; 230, connecting body; 300, circuit board; 400, heat dissipation support; 410, first positioning part; 420, support groove; 430, locking hole; 440, locking piece; 500, key; 600, silica gel pad. Embodiments of the present application

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0042] In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration." Any implementation described as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. The following description is presented to enable any person skilled in the art to make and use the application. Details are set forth in the following description for purpose of explanation. It should be appreciated that one of ordinary skill in the art will readily recognize that the application can be practiced without the use of these specific details. In other instances, well-known structures and processes have not been described in detail in order to avoid obscuring the description of the application. Thus, the present application is not intended to be limited by the embodiments shown, but is to be accorded with the widest scope consistent with the principles and features disclosed herein.

[0043] In the related art, grooves are respectively arranged on the screen transmission wire and the face shell and the bottom shell, and the rib positions on the side edges of the face shell and the bottom shell are respectively buckled with the grooves on the screen transmission wire. Since there are segment differences (segment difference refers to the matching deviation of the face shell and the bottom shell at the parting surface position due to the machining precision deviation) in batch production. There is a gap at the segment difference position, which causes the base color of the raw material to be exposed at the gap, seriously affecting the appearance quality of the product. In addition, the screen transmission wire can be fixed only when the face shell and the bottom shell are clamped together. When the bottom shell is not assembled, the wire is easy to loosen, the reverse installation operation is not convenient, and the assembly efficiency is low.

[0044] In view of at least one technical problem in the related art, the present application provides a novel structure of a screen transmission device. By improving the shell structure of the screen transmission device, the structure of the screen transmission wire, and the cooperation mode of the shell and the screen transmission wire in the prior art, the appearance quality and assembly efficiency of the screen transmission device are improved. Specifically, in the present application, the second shell is located inside the first side shell, and the first side shell shields the second shell inside it, that is, the assembly mode of the first shell wrapping the second shell is adopted in the present application, thereby avoiding the problem of exposing the base color of the raw material caused by the segment difference between the first shell and the second shell in the related art, and improving the appearance quality and stability of the screen transmission device in the present application. In addition, the first side shell is provided with a wire passing hole in the present application, the connecting head of the screen transmission wire includes a cooperation part and a limiting part connected with each other, and the limiting part is configured to abut against the first side shell to limit the cooperation part in the wire passing hole. That is, in the present application, the connecting head can be directly cooperated with the first side shell during assembly to limit the cooperation part in the wire passing hole, thereby realizing the pre-fixing of the screen transmission wire and avoiding the problem of low assembly efficiency caused by the easy loosening of the screen transmission wire when the bottom shell is not assembled in the prior art.

[0045] The screen transmission device in the present application will be further described below in combination with specific embodiments and drawings.

[0046] Referring to FIGS. 1-3, the screen transmitter 10 in the present application comprises a housing 100, a circuit board 300 and a screen transmission wire 200. The housing 100 is configured to provide a receiving cavity 130 and protect the circuit board 300 and other structures in the receiving cavity 130. The screen transmission wire 200 is configured to connect the screen transmitter 10 with an external terminal device, which includes but is not limited to a notebook computer, a tablet computer, a mobile phone and the like. The content on the screen of the external terminal device can be synchronously displayed on a preset screen (for example, the content on the screen of a mobile phone is synchronously displayed on the screen of a touch all-in-one machine) through the screen transmitter 10. It should be noted that the specific structure of the circuit board in the present application is not the main improvement point of the present application, and the person skilled in the art can select a suitable circuit board according to the needs, which is not limited herein.

[0047] In the present application, referring to FIGS. 4 and 5, the housing 100 comprises a first shell 110 and a second shell 120 connected with each other, and the receiving cavity 130 is formed between the first shell 110 and the second shell 120. The first shell 110 comprises a first main shell 111 and a first side shell 112 extending from the outer edge of the first main shell 111 towards the second shell 120, and the first side shell 112 is provided with a wire hole 1121; the second shell 120 is located inside the first side shell 112, and the first side shell 112 shields the second shell 120 located therein.

[0048] It should be noted that one of the first shell 110 and the second shell 120 can be a face shell (i.e., the shell part corresponding to the top surface) of the screen transmitter 10. Correspondingly, the other one of the first shell 110 and the second shell 120 can be a bottom shell (i.e., the shell part corresponding to the bottom surface) of the screen transmitter 10. For the convenience of understanding, the first shell 110 is taken as the face shell and the second shell 120 is taken as the bottom shell in the following further description of the present application.

[0049] Then, the first main shell 111 is correspondingly the shell part corresponding to the top surface of the screen transmitter 10, and the side of the first main shell 111 away from the second shell 120 is the top appearance surface of the screen transmitter 10. The first side shell 112 is correspondingly the shell part corresponding to the side surface of the screen transmitter 10. In the present application, since the second shell 120 is located inside the first side shell 112 and the first side shell 112 shields the second shell 120 located therein, the side of the first side shell 112 away from the receiving cavity 130 forms the side wall appearance surface of the screen transmitter 10 (i.e., the appearance surface of the side wall of the screen transmitter 10 in the present application does not include the surface of the second shell 120), and the connection between the first shell 110 and the second shell 120 is located inside the first shell 110, thereby avoiding the problem that the color of the base material at the step position is exposed in the related art, which seriously affects the appearance quality of the product.

[0050] It can be understood that in another embodiment of the present application, the first shell 110 can also be the bottom shell of the screen transmitter 10, and correspondingly, the second shell 120 is the face shell, which is not limited herein.

[0051] In the present application, the screen wire 200 includes an electrical connection part 210, a connecting body 230 and a connecting head 220. The connecting head 220 is connected with the connecting body 230, the electrical connection part 210 is arranged in the accommodating cavity 130 and is in communication connection with the circuit board 300. The connecting body 230 is used for communication connection with an external terminal device. The connecting head 220 includes a matching part 221 and a limiting part 222 connected with each other, and the limiting part 222 is configured to abut against the first side shell 112 so that the matching part 221 is limited in the wire passing hole 1121. In the present application, since the wire passing hole 1121 is arranged on the first side shell 112, the limiting part 222 of the connecting head 220 is configured to abut against the first side shell 112 so that the matching part 221 is limited in the wire passing hole 1121, that is, the connecting head 220 in the present application can be limited on the first shell 110, and the pre-fixing of the screen wire 200 can be realized during assembly, thereby avoiding the problem of low assembly efficiency caused by the easy loosening of the wire when the bottom shell is not assembled in the prior art.

[0052] In summary, in the present application, the second shell 120 is located on the inner side of the first side shell 112, and the first side shell 112 shields the second shell 120 located therein, that is, the assembly mode of the first shell 110 wrapping the second shell 120 is adopted in the present application, thereby avoiding the problem of the exposed material color caused by the existence of the step difference between the first shell 110 and the second shell 120 in the related art, and improving the appearance quality and stability of the screen transmitter 10 in the present application. In addition, in the present application, the wire passing hole 1121 is arranged on the first side shell 112, the connecting head 220 of the screen wire 200 includes the matching part 221 and the limiting part 222 connected with each other, and the limiting part 222 is configured to abut against the first side shell 112 so that the matching part 221 is limited in the wire passing hole 1121, that is, during assembly, the connecting head 220 can be directly matched with the first side shell 112 so that the matching part 221 is limited in the wire passing hole 1121, thereby realizing the pre-fixing of the screen wire 200, and avoiding the problem of low assembly efficiency caused by the easy loosening of the screen wire 200 when the bottom shell is not assembled in the prior art.

[0053] It should be noted that, in the present application, component A is connected with component B, which can be that component A is directly connected with component B, or component A is connected with component B through a medium (for example, component C), which is not limited herein. Taking the connecting head 220 including the matching part 221 and the limiting part 222 connected with each other as an example, the matching part 221 and the limiting part 222 can be directly connected, for example, the matching part 221 is arranged on one surface of the limiting part 222; of course, the matching part 221 and the limiting part 222 can also be connected through a medium, which is not limited herein.

[0054] It should be noted that, in the present application, the specific manner in which the connecting head 220 is connected with the connecting body 230 is not limited, for example, the connecting head 220 is adhesively fixed with the connecting body 230, or the connecting head 220 is integrally formed on the connecting body 230, which is not limited herein.

[0055] In some embodiments of the present application, in order to facilitate the connection between the screen transmission wire 200 and the circuit board 300, the electric connecting part 210 can be a plug-in terminal, and the circuit board 300 is provided with a plug-in port matched with the plug-in terminal. The plug-in terminal is plug-in connected with the plug-in port on the circuit board 300. It should be noted that the specific structure of the electric connecting part 210 and the specific manner in which the electric connecting part 210 is communicatively connected with the circuit board 300 do not belong to the main improvement points of the present application, which are not limited herein.

[0056] In some embodiments of the present application, referring to FIGS. 1, 4, 12 and 13, the matching part 221 is embedded in the wire passing hole 1121. For example, the size and shape of the matching part 221 are matched with the size and shape of the wire passing hole 1121. It should be noted that, in the present application, the shape of the matching part 221 is matched with the shape of the wire passing hole 1121, which means that the shape of the outer contour line of the matching part 221 is the same as the shape of the outer contour line of the wire passing hole 1121 (that is, the wire passing hole 1121 and the matching part 221 have the same normal projection on the plane perpendicular to the center line of the wire passing hole 1121), so that the matching part 221 can completely block or seal the wire passing hole 1121.

[0057] In this embodiment, since the shape of the matching part 221 is matched with the shape of the wire passing hole 1121, and the limiting part 222 is abutted against the shell to limit the matching part 221 in the wire passing hole 1121. Compared with the related art, the structure of the connecting head in the present application is simpler, which is conducive to reducing the preparation cost. In addition, during the assembly process, only the matching part 221 needs to be aligned with the wire passing hole 1121, and then the matching part 221 is moved in the direction close to the wire passing hole 1121 to the abutment between the limiting part 222 and the first shell, so that the matching part 221 is limited in the wire passing hole 1121, which further improves the assembly precision and efficiency.

[0058] Exemplarily, the wire passing hole 1121 is an elliptical hole, the fitting part 221 is generally in the shape of an arc plate, and the plane where the fitting part 221 is located is generally arranged in parallel with the plane where the wire passing hole 1121 is located; the projection of the fitting part 221 on the plane where the wire passing hole 1121 is located is generally in the shape of an ellipse, and the area of the projection of the fitting part 221 on the plane where the wire passing hole 1121 is located is the same as or close to the area of the wire passing hole 1121. After the fitting part 221 is assembled in place, the front surface of the fitting part 221 (i.e., the surface of the fitting part 221 facing away from the limiting part 222) is smoothly connected with the outer surface of the first side shell 112. This structure is conducive to further improving the appearance quality of the screen transmission device 10. Of course, in other embodiments of the present application, the wire passing hole 1121 and the fitting part 221 can also be in other shapes, which are not limited herein.

[0059] In some embodiments of the present application, the limiting part 222 includes a first limiting surface 2221 arranged towards the first main shell 111, a second limiting surface 2222 arranged opposite to the first limiting surface 2221, and a third limiting surface 2223 connecting the first limiting surface 2221 and the second limiting surface 2222, the third limiting surface 2223 is arranged opposite to the wire passing hole 1121, and the fitting part 221 is arranged on the third limiting surface 2223 and extends towards the direction where the wire passing hole 1121 is located; the first limiting surface 2221 abuts against the first main shell 111, the second limiting surface 2222 abuts against the second shell 120, and the third limiting surface 2223 abuts against the first side shell 112.

[0060] It can be understood that the first main shell 111 can be the top surface shell of the screen transmission device 10, the first limiting surface 2221 is arranged opposite to the top surface shell of the screen transmission device 10, and the first limiting surface 2221 abuts against the inner wall of the first shell of the screen transmission device 10 (i.e., the surface of the first main shell facing the circuit board 300). Correspondingly, the second limiting surface 2222 is the surface of the limiting part 222 facing the second shell 120, and the second limiting surface 2222 abuts against the second shell 120, so that the limiting part 222 or the connecting head 220 is limited in the height direction of the screen transmission device 10 (i.e., the direction of the connecting line of the first main shell 111 and the second main shell 121). The third limiting surface 2223 is arranged opposite to the first side shell 112, and the third limiting surface 2223 abuts against the inner side surface of the first side shell 112 (i.e., the surface of the first side shell 112 opposite to the appearance surface of the side wall), so as to avoid the separation of the connecting head 220 from the circuit board 300 through the wire passing hole 1121 under the action of external force, and is conducive to improving the stability of the screen transmission device 10. In addition, in this embodiment, the limiting part 222 directly abuts against the wall surface of the first shell 110 and the second shell 120 for limiting, which is conducive to simplifying the structure of the screen transmission device 10 in the present application, and makes the structure of the screen transmission device 10 simpler and more compact.

[0061] Further, the first main shell 111 is provided with a plurality of protrusions 1111 on the side facing the first limiting surface 2221, the plurality of protrusions 1111 are arranged at intervals along the extension direction of the first limiting surface 2221, and each protrusion 1111 abuts against the first limiting surface 2221. This embodiment is advantageous in improving the structural strength of the screen transmission device 10 and improving the compression resistance by providing the first main shell 111 with a plurality of protrusions 1111 on the side facing the first limiting surface 2221, the plurality of protrusions 1111 are arranged at intervals along the extension direction of the first limiting surface 2221, and each protrusion 1111 abuts against the first limiting surface 2221.

[0062] Specifically, the limiting portion 222 is generally arc-shaped and plate-shaped, and the plane on which the limiting portion 222 is located is generally parallel to the plane on which the fitting portion 221 is located. The first limiting surface 2221 is generally long and externally convex in the direction of the fitting portion 221. The first limiting surface 2221 is provided with a limiting portion 222 groove on the side facing away from the fitting portion 221 and close to the middle position, and the limiting portion 222 groove penetrates the first limiting surface 2221 and the third limiting surface 2223. The first main shell 111 is provided with ten protrusions 1111 on the side facing the first limiting surface 2221, the ten protrusions 1111 are arranged at intervals along the extension direction of the first limiting surface 2221, and the plane on which each protrusion 1111 is located is generally perpendicular to the first limiting surface 2221. The side of each protrusion 1111 facing the first limiting surface 2221 is generally planar, and the part of the third limiting surface 2223 abutting against the protrusion 1111 is also planar, so that the protrusion 1111 and the third limiting surface 2223 have as large a contact area as possible, further improving the compression resistance.

[0063] Further, the orthographic projection of the fitting portion 221 is located within the third limiting surface 2223, that is, the orthographic projection of the fitting portion 221 on the plane of the third limiting surface 2223 is located within the third limiting surface 2223. This structure is advantageous in increasing the contact area between the limiting portion 222 and the first side shell 112 and improving the stability of the screen transmission device 10 under a pulling force perpendicular to the plane on which the through hole 1121 is located and outward. Specifically, the fitting portion 221 is arranged close to the middle position of the third limiting surface 2223.

[0064] In some embodiments of the present application, as shown in FIGS. 6-10, the screen transmitter 10 further comprises a heat dissipation support 400 arranged between the second shell 120 and the circuit board 300. The heat dissipation support 400 is provided with a plurality of first positioning portions 410, and the limiting portion 222 is provided with a plurality of second positioning portions 2224 corresponding to the first positioning portions 410. The first positioning portions 410 and the second positioning portions 2224 are arranged one by one in correspondence, and the first positioning portions 410 and the second positioning portions 2224 cooperate to limit the relative movement of the heat dissipation support 400 and the limiting portion 222. It should be noted that the first positioning portions 410 and the second positioning portions 2224 can be magnetic attraction, or the cooperation of holes and shafts, which are not limited herein. In this embodiment, the first positioning portions 410 are arranged on the heat dissipation support 400, and the second positioning portions 2224 are arranged on the limiting portion 222. The heat dissipation support 400 further positions the limiting portion 222, which is beneficial to improve the connection strength of the limiting portion 222 and the stability of the screen transmitter 10.

[0065] Specifically, the first positioning portions 410 are positioning tabs. The side of the heat dissipation support 400 facing the limiting portion 222 is provided with a plurality of positioning tabs. For example, the number of the positioning tabs is two, and the two positioning tabs are arranged at intervals along the circumference of the heat dissipation support 400. Each first positioning portion 410 is generally rectangular. Each positioning tab is generally perpendicular to the bottom surface connected thereto, for example, each positioning tab is arranged vertically, and the bottom surface connected to the positioning tab is generally horizontally arranged. Correspondingly, the second positioning portions 2224 are positioning grooves. The number of the positioning grooves on the connecting head 220 is also two. The two positioning grooves are arranged at the two ends of the connecting head 220 in the length direction. Each positioning tab is arranged opposite to the corresponding positioning groove. When the positioning tab is arranged in the positioning groove, the heat dissipation support 400 limits the connecting head 220 in the plane perpendicular to the line connecting the first shell 110 and the second shell 120 (if the line connecting the first shell 110 and the second shell 120 is defined as the vertical direction, then the plane perpendicular to the line connecting the first shell 110 and the second shell 120 is the horizontal plane), thereby improving the connection strength of the limiting portion 222 and the assembly precision and stability of the screen transmitter 10.

[0066] In some embodiments of the present application, the heat dissipation support 400 is fixed on the first shell 110. Specifically, the first shell 110 is provided with a first threaded hole 115, and the heat dissipation support 400 is provided with a locking hole 430 at a position corresponding to the first threaded hole 115. A locking member 440 (for example, a locking screw) passes through the locking hole 430 and the corresponding first threaded hole 115 to fix the heat dissipation support 400 on the first shell 110. Of course, in other embodiments of the present application, the heat dissipation support 400 can also be fixed in other ways, which are not limited herein.

[0067] Further, the limiting part 222 comprises a first limiting surface 2221 arranged towards the first main shell 111 and abutting against the first main shell 111, and a second limiting surface 2222 arranged opposite to the first limiting surface 2221. An end of the second limiting surface 2222 away from the fitting part 221 is provided with a heat dissipation bracket mounting groove 2222c for accommodating and supporting the heat dissipation bracket 400. The end of the second limiting surface 2222 close to the fitting part 221 is in abutment with the second shell 120. This structure makes the structure of the screen transmission device 10 more compact, which is conducive to reducing the size of the screen transmission device 10 in the height direction.

[0068] Specifically, in the direction away from the fitting part 221, the second limiting surface 2222 comprises a second shell fitting surface 2222b and a heat dissipation bracket bearing surface 2222a connected to each other. The second shell fitting surface 2222b is in abutment with the second shell 120, and the heat dissipation bracket bearing surface 2222a is used for bearing the heat dissipation bracket 400. An end of the second limiting surface 2222 away from the fitting part 221 is sunken in the direction of the first limiting surface 2221 to form the heat dissipation bracket mounting groove 2222c, the bottom surface of which is the heat dissipation bracket bearing surface 2222a. The heat dissipation bracket mounting groove 2222c is used for accommodating and supporting the heat dissipation bracket 400. The part of the second limiting surface 2222 close to the fitting part 221 (i.e. the part of the second limiting surface 2222 that is not sunken) forms the second shell fitting surface 2222b, which is in abutment with the second shell 120.

[0069] Further, the junction between the heat dissipation bracket bearing surface 2222a and the second shell fitting surface 2222b is provided with a second positioning part 2224 (e.g. a positioning groove), which cooperates with the first positioning part 410 (e.g. a positioning tab) on the heat dissipation bracket 400, thereby limiting the freedom of the connecting head part 220 in the plane of the heat dissipation bracket 400 (i.e. the plane perpendicular to the line connecting the first shell 110 and the second shell 120), thereby realizing the positioning of the connecting head part 220 in the plane of the heat dissipation bracket 400.

[0070] It can be understood that, since the second limiting surface 2222 sinks away from the end of the fitting part 221 in the direction of the first limiting surface 2221 to form the heat dissipation bracket mounting groove 2222c, the heat dissipation bracket mounting groove 2222c is used to accommodate and support the heat dissipation bracket 400; the part of the second limiting surface 2222 close to the fitting part 221 abuts against the second shell 120; and the second positioning part 2224 is arranged at the boundary between the second shell fitting surface 2222b and the heat dissipation bracket bearing surface 2222a, which cooperates with the first positioning part 410 on the heat dissipation bracket 400 to limit the rotation of the connecting head 220 in the plane where the heat dissipation bracket 400 is located, thereby facilitating the further locking of the connecting head 220, improving the stability of the screen transmission device 10, and making the mechanism of the screen transmission device 10 more compact.

[0071] In some embodiments of the present application, the second shell 120 includes a second main shell 121 and a second side shell 122 extending from the outer edge of the second main shell 121 towards the first shell 110, and the first side shell 112 shields the second side shell 122 located therein, and the first side shell 112 and the second side shell 122 are snap-connected.

[0072] It can be understood that the second main shell 121 can be the bottom shell of the screen transmission device 10, and the second side shell 122 is a side shell connected with the bottom shell, and the second side shell 122 is arranged opposite to the first side shell 112 and located inside the first side shell 112, that is, the first side shell 112 shields the second side shell 122 located therein from the side. This embodiment shields the second side shell 122 located in the first side shell 112 by the first side shell 112, and the first side shell 112 and the second side shell 122 are snap-connected, which facilitates the assembly and disassembly of the first shell 110 and the second shell 120, and is conducive to improving the assembly efficiency of the screen transmission device 10. It should be noted that the snap-connection of the first side shell 112 and the second side shell 122 can be that one of the first side shell 112 and the second side shell 122 is provided with a buckle, and the other of the first side shell 112 and the second side shell 122 is provided with a clamping groove matched with the buckle, and the first side shell 112 and the second side shell 122 are snap-connected through the buckle and the clamping groove.

[0073] Specifically, the first side shell 112 is close to the second side shell 122, and the first side shell 112 and the second side shell 122 are opposite and arranged substantially in parallel. The first side shell 112 is provided with a first side shell buckle 1122 on a side facing the second side shell 122, and the second side shell 122 is provided with a second side shell buckle slot 1222 matched with the first side shell buckle 1122 on a side facing the first side shell 112. When the first side shell buckle 1122 is buckled into the corresponding second side shell buckle slot 1222, the first side shell 112 and the second side shell 122 are buckled and connected. Further, an end of the first side shell 112 away from the first main shell 111 extends to the edge of the second main shell 121. Exemplarily, the end of the first side shell 112 away from the first main shell 111 is flush with the edge of the second main shell 121 (i.e., the bottom surface of the first side shell 112 is flush with the edge of the bottom surface of the corresponding screen transmitter 10), which is conducive to improving the appearance quality of the screen transmitter 10 in the application.

[0074] In some embodiments of the application, referring to FIG. 3 again, the second side shell 122 is provided with a relief groove 1221 opposite the wire passing hole 1121; the connecting head includes a limiting portion 222, which is at least partially accommodated in the relief groove 1221; the limiting portion 222 includes a first limiting surface 2221 arranged towards the first main shell 111, a second limiting surface 2222 arranged opposite the first limiting surface 2221, and a third limiting surface 2223 connecting the first limiting surface 2221 and the second limiting surface 2222; the first limiting surface 2221 abuts against the first main shell 111, the second limiting surface 2222 abuts against the bottom surface of the relief groove 1221, and the third limiting surface 2223 abuts against the first side shell 112. In this embodiment, the second side shell 122 is provided with the relief groove 1221, the limiting portion 222 of the connecting head is at least partially accommodated in the relief groove 1221, the first limiting surface 2221 of the limiting portion 222 abuts against the first main shell 111, the second limiting surface 2222 of the limiting portion 222 abuts against the bottom surface of the relief groove 1221, and the third limiting surface 2223 of the limiting portion 222 abuts against the first side shell 112, so that the shell limits the limiting portion 222 on three different surfaces, which is conducive to improving the assembly efficiency and precision of the limiting portion 222 and improving the structural compactness of the screen transmitter 10.

[0075] Specifically, the second limiting surface 2222 abuts against the bottom surface of the relief groove 1221.

[0076] In some embodiments of the present application, referring to FIGS. 10 and 11, the screen transmitter 10 further comprises a heat dissipation support 400, the second shell 120 is provided with an anti-lost hole 1211, and the heat dissipation support 400 is provided with a support groove 420, which is arranged opposite to the anti-lost hole 1211. This structure is conducive to avoiding the loss of the screen transmitter 10 and improving the stability of the screen transmitter 10.

[0077] Specifically, the anti-lost hole 1211 comprises a first through hole and a second through hole arranged adjacent to each other, the support groove 420 is arranged directly below the connection line of the first through hole and the second through hole, and the first through hole and the second through hole are communicated with each other through the support groove 420, so that the locking member 440 (such as a string or a cable tie) can pass through the first through hole and the second through hole. It should be noted that in the related art, the screen transmitter 10 is not provided with the anti-lost hole 1211, and the operator generally binds the screen line with the locking member 440 to prevent loss. When in use, the screen line is easily pulled, which seriously affects the reliability of the screen line. Compared with the related art, in this embodiment, the second shell 120 is provided with the anti-lost hole 1211, the heat dissipation support 400 is provided with the support groove 420, and the support groove 420 is arranged opposite to the anti-lost hole 1211. The operator can use the locking member 440 (such as a string or a cable tie) to pass through the anti-lost hole 1211 and the support groove 420, so as to fix the screen transmitter 10 at a predetermined position, thereby reducing the risk of loss of the screen transmitter 10 and improving the stability of the screen transmitter 10.

[0078] In some embodiments of the present application, referring again to FIG. 5, the first shell 110 is further provided with a plurality of reverse insertion bones 113. The reverse insertion bone 113 is arranged opposite to the first side shell 112, and a limiting groove is formed between the reverse insertion bone 113 and the part of the first side shell 112 opposite thereto, which is used for limiting the second shell 120. Specifically, when the first shell 110 and the second shell 120 are assembled, the end of the second side shell 122 away from the second main shell 121 is partially inserted into the limiting groove.

[0079] In some embodiments of the present application, the first shell 110 is further provided with a plurality of circuit board 300 mounting portions for supporting and limiting the circuit board 300. The specific structure of the circuit board 300 supporting portion 114 does not belong to the main improvement point of the present application, and is not limited here.

[0080] In some embodiments of the present application, referring to FIG. 3, the screen transmitter 10 further comprises a button 500. Specifically, the first main shell 111 is provided with a button 500 mounting hole 1112 near the middle position, and the button 500 is embedded in the button 500 mounting hole 1112. It should be noted that the specific structure of the button 500 does not belong to the main improvement point of the present application, and is not described here.

[0081] In some embodiments of the present application, the screen transmitter 10 further comprises a silica gel pad 600. The silica gel pad is used to increase the feel of the keys 500 and to keep the balance of the keys 500. Specifically, the silica gel pad is arranged directly below the keys 500. It should be noted that the specific structure of the silica gel pad is not the main improvement point of the present application, and will not be described here.

[0082] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the detailed description of other embodiments above, which will not be described here.

[0083] The above has described the basic concept, and it is obvious that the above detailed disclosure is only as an example, and does not constitute a limitation on the present application. Although it is not explicitly stated here, those skilled in the art can make various modifications, improvements and corrections to the present application. Such modifications, improvements and corrections are suggested in the present application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.

[0084] At the same time, specific words are used in the present application to describe the embodiments of the present application. As "one embodiment", "an embodiment", and / or "some embodiments" means a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that the "an embodiment" or "one embodiment" or "one alternative embodiment" mentioned in different places in the specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be properly combined.

[0085] Similarly, it should be noted that in order to simplify the expression of the disclosure of the present application and to help understand one or more embodiments of the invention, sometimes multiple features are combined into one embodiment, figure or description thereof in the foregoing description of the embodiments of the present application. However, this disclosure method does not mean that the features required by the present application are more than the features mentioned in the claims. In fact, the features of the embodiment are less than all the features of the disclosed single embodiment.

[0086] In some embodiments, numbers that describe amounts, dimensions, and so forth, are used in the description of the embodiments. It should be understood that such numbers are used only to facilitate description of certain embodiments, and thus can, in some instances, be modified by the use of the terms "about," "approximately," or "generally" while maintaining the desired degree of accuracy. Unless otherwise stated, "about," "approximately," or "generally" mean ±20% of the value stated. Accordingly, the numerical parameters used in the illustrative embodiments and the claims are approximations that can vary depending upon the desired properties sought to be obtained by the particular embodiments. In some embodiments, numerical parameters are determined by the use of standard techniques. In some embodiments, numerical parameters are determined with the use of standard techniques. Although the numerical ranges and parameters setting forth the broad scope of the embodiments of the application are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values set forth in the specific examples are provided to give a general understanding of the embodiments of the application.

[0087] The above has carried on the detailed introduction to the screen transmitter provided by the embodiments of the present application, the principle and implementation mode of the present application are described in the text by applying the specific examples, the above embodiment explanation is only for helping to understand the method of the present application and its core idea; simultaneously, for the skilled in the art, according to the idea of the present application, there will be changes in the specific implementation mode and application range, on the basis of the above, the content of the specification should not be understood as the limitation of the present application.

Claims

1. A screen transmitter comprising a housing (100), a circuit board (300) and a screen wire (200); the housing (100) comprises a first shell (110) and a second shell (120) connected to each other, a containing cavity (130) being formed between the first shell (110) and the second shell (120); the first shell (110) comprises a first main shell (111) and a first side shell (112) extending from an outer edge of the first main shell (111) towards the second shell (120), the first side shell (112) being provided with a wire passing hole (1121); the second shell (120) is located inside the first side shell (112), and the first side shell (112) shields the second shell (120) located therein; the circuit board (300) is arranged in the containing cavity (130); the screen wire (200) comprises an electrical connection part (210), a connecting body (230) and a connecting head part (220) connected to the connecting body (230), the electrical connection part (210) is arranged in the containing cavity (130) and connected to the circuit board (300); the connecting head part (220) comprises a fitting part (221) and a limiting part (222) connected to each other, the limiting part (222) is configured to abut against the first side shell (112) so that the fitting part (221) is limited in the wire passing hole (1121).

2. The screen transmitter of claim 1, wherein, the limiting part (222) comprises a first limiting surface (2221) arranged towards the first main shell (111), a second limiting surface (2222) arranged opposite to the first limiting surface (2221), and a third limiting surface (2223) connecting the first limiting surface (2221) and the second limiting surface (2222), the third limiting surface (2223) is arranged opposite to the wire passing hole (1121), the fitting part (221) is arranged at the third limiting surface (2223) and extends towards the direction where the wire passing hole (1121) is located; the first limiting surface (2221) abuts against the first main shell (111), the second limiting surface (2222) abuts against the second shell (120), and the third limiting surface (2223) abuts against the first side shell (112).

3. The screen transmitter of claim 2, wherein, the first main shell (111) is provided with a plurality of protrusions (1111) on the side towards the first limiting surface (2221), the plurality of protrusions (1111) are arranged at intervals along the extension direction of the first limiting surface (2221), and each of the protrusions (1111) abuts against the first limiting surface (2221).

4. The screen transmitter of claim 2, wherein, the normal projection of the fitting part (221) is located in the third limiting surface (2223).

5. The screen transmitter of claim 1, wherein, the fitting part (221) is embedded in the wire passing hole (1121).

6. The screen transmitter of claim 1, wherein, The screen transmitter (10) further comprises a heat dissipation support (400) arranged between the second housing (120) and the circuit board (300), the heat dissipation support (400) is provided with a plurality of first positioning portions (410), the limiting portion (222) is provided with a plurality of second positioning portions (2224) matched with the first positioning portions (410), the plurality of first positioning portions (410) and the plurality of second positioning portions (2224) are arranged one by one, and the first positioning portions (410) and the second positioning portions (2224) cooperate to limit the relative movement of the heat dissipation support (400) and the limiting portion (222).

7. The screen transmitter of claim 6, wherein, The limiting portion (222) comprises a first limiting surface (2221) arranged towards the first main housing (111) and a second limiting surface (2222) arranged opposite to the first limiting surface (2221), the first limiting surface (2221) abuts against the first main housing (111); the second limiting surface (2222) is provided with a heat dissipation support mounting groove (2222c) at one end away from the cooperating portion (221), the heat dissipation support mounting groove (2222c) is used for accommodating and supporting the heat dissipation support (400), and the second limiting surface (2222) abuts against the second housing (120) at one end close to the cooperating portion (221).

8. The screen transmitter of claim 6, wherein, The first positioning portion (410) comprises a positioning tab, and the second positioning portion (2224) comprises a positioning groove matched with the positioning tab.

9. The screen transmitter of claim 1, wherein, The second housing (120) comprises a second main housing (121) and a second side housing (122) extending from the outer edge of the second main housing (121) towards the first housing (110), the first side housing (112) shields the second side housing (122) located therein, and the first side housing (112) and the second side housing (122) are snap-connected.

10. The screen transmitter of claim 1, wherein, The first side housing (112) extends to the edge of the second main housing (121) at one end away from the first main housing (111).

11. The screen transmitter of claim 9, wherein, The second side housing (122) is provided with an avoiding groove (1221) arranged opposite to the wire passing hole (1121); the limiting portion (222) is at least partially accommodated in the avoiding groove (1221); the limiting portion (222) comprises a first limiting surface (2221) arranged towards the first main housing (111), a second limiting surface (2222) arranged opposite to the first limiting surface (2221), and a third limiting surface (2223) connecting the first limiting surface (2221) and the second limiting surface (2222); the first limiting surface (2221) abuts against the first main housing (111), the second limiting surface (2222) abuts against the bottom surface of the avoiding groove (1221), and the third limiting surface (2223) abuts against the first side housing (112).

12. The screen transmitter of claim 1, wherein, The screen transmitter (10) further comprises a heat dissipation support (400), the second shell (120) is provided with an anti-lost hole (1211), and the heat dissipation support (400) is provided with a support groove (420), and the support groove (420) is arranged opposite to the anti-lost hole (1211).

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