CN212086649U

CN212086649U - Wireless screen transmission device

Info

Publication number: CN212086649U
Application number: CN202020452552.7U
Authority: CN
Inventors: 诸月
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-12-04
Anticipated expiration: 2030-03-31

Abstract

The utility model relates to a wireless pass screen device, including casing and USB subassembly, the casing includes first lid and the second lid of being connected with first lid, be formed with between first lid and the second lid and hold the chamber, it is provided with the mainboard to hold the intracavity, the USB subassembly includes annular body and USB main part, the body sets up outside the casing, the inner wall of body respectively with the outer wall butt of first lid and second lid, the body shelters from the seam of first lid with second lid hookup location, the body deviates from one side protrusion of casing and is provided with first convex part, USB main part is fixed in first convex part partially at least, first convex part adopts elastic colloid integrated into one piece with the body, the USB main part is close to the one end of casing and passes through wire and mainboard connection. The utility model discloses a wireless pass screen device simple structure, the equipment is convenient, and the outward appearance is pleasing to the eye, and sealed effectual.

Description

Wireless screen transmission device

Technical Field

The utility model relates to a transmission video image signal's equipment especially relates to a wireless screen device that passes.

Background

A wireless screen transmission device is a device for transmitting video image signals. When the user uses the intelligent interactive tablet, the wireless screen transmission device can be utilized to synchronously display the operation interface on the notebook computer on the intelligent interactive tablet, and the operation is carried out on the notebook computer so as to synchronously display the operation interface on the intelligent interactive tablet, thereby facilitating other people to see the content on the operation interface.

The wireless screen device that passes usually includes upper cover and the lower cover of looks lock, forms the chamber that holds parts such as mainboard between upper cover and the lower cover, and the USB line of wireless screen device that passes usually one end with hold the mainboard connection of intracavity, the other end extends to the upper cover and the lower cover outside with USB socket grafting realization signal transmission on equipment such as notebook computer, and has the opening that supplies the USB line to pass through between upper cover and the lower cover. The prior art has the following defects: 1. the USB cable is difficult to assemble with the upper cover and the lower cover, and a limiting structure is required to be arranged on the surface of the USB cable to prevent the USB cable from being separated from the upper cover and the lower cover, so that the manufacturing difficulty of the USB cable is increased; 2. when the USB wire is pulled outside, one end of the USB wire connected with the mainboard is easy to loosen or fall off, so that signal transmission failure is caused; 3. after the upper cover and the lower cover are assembled, a seam exists at the assembly position, substances such as external water vapor and dust easily enter the accommodating cavity through the seam, and the seam is exposed to affect attractiveness.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an aim at: the wireless screen transmission device is simple in structure, convenient to assemble, attractive in appearance and good in sealing effect.

To achieve the purpose, the embodiment of the present invention adopts the following technical solutions:

provided is a wireless screen transmission device, including:

the portable electronic device comprises a shell, a first cover body and a second cover body, wherein the shell comprises the first cover body and the second cover body connected with the first cover body;

the USB assembly comprises an annular body and a USB main body, wherein the body is arranged outside the shell, the inner wall of the body is abutted to the outer wall of the first cover body and the outer wall of the second cover body respectively, the body shields the joint of the connecting position of the first cover body and the second cover body, the body deviates from one side of the shell and is convexly provided with a first convex part, at least part of the USB main body is fixed in the first convex part, the first convex part and the body are integrally formed by elastic colloid, and the USB main body is close to one end of the shell and is connected with the mainboard through a wire.

The utility model has the advantages that: the first convex part for fixing the USB main body and the body are integrally manufactured and formed, so that the mounting difficulty of the USB assembly can be reduced, and the integrally formed structure can effectively prevent one end of the USB main body connected with the main board from loosening and falling off when the first convex part is pulled by external force, so that the stability of signal transmission is ensured; through adopting first convex part and body to take elastic colloid to make the shaping, and the body setting of annular form can shelter from the seam of the hookup location of two lids outside the casing effectively, promotes sealed effect, and the sheltering from of body can make the outward appearance of whole wireless biography screen device pleasing to the eye.

As a preferred scheme of the wireless screen transmission device, an annular groove is formed in the side face of the shell, and the body is clamped in the groove. Through setting up the recess, can utilize the position of recess restriction body on the casing, avoid the body to break away from the casing.

As a preferred scheme of wireless biography screen device, the edge extension all around of first lid is provided with first chimb, the edge extension all around of second lid is provided with the second chimb, the side of casing is in first chimb with recessed formation recess between the second chimb, the body card is established first chimb with in the recess between the second chimb.

As a preferred scheme of the wireless screen transmission device, a side surface of the body, which is close to the shell, is convexly provided with a limiting rib, the limiting rib comprises a connecting part connected with the body, and the connecting part is clamped between the first cover body and the second cover body. Through setting up connecting portion, connecting portion clamp is between two lids, can effectively prevent that the body from breaking away from the casing.

As a preferred scheme of the wireless screen transmission device, one end of the connecting part, which is far away from the body, is connected with a limiting part, and the limiting part abuts against the inner wall of the shell. By providing the limiting portion, the limiting portion abuts against the inner wall of the housing, the position of the body is further limited, and even if the body is pulled in the length direction or the width direction of the connecting portion, the body cannot be separated from the housing.

As a preferred scheme of the wireless screen transmission device, the cross section of the limiting rib is T-shaped. The limiting rib of the T shape can enable the limiting part to be abutted against the inner walls of the first cover body and the second cover body, and the effect of fixing the body is optimal.

As a preferred scheme of the wireless screen transmission device, a plurality of limiting ribs are distributed on the inner wall of the body around the center of the shell. A plurality of spacing muscle can be injectd effectively the position of annular body, effectively prevents that the body from removing or breaking away from the casing for the casing.

As a preferable scheme of the wireless screen transmission device, a second convex part is arranged on the inner wall of the body corresponding to the leading-out position of the wire of the USB main body, an avoiding hole is arranged on the shell corresponding to the second convex part, and the second convex part is inserted into the avoiding hole. Through setting up the second convex part, the grafting cooperation between the hole of dodging of second convex part and casing can carry out position direction to the installation of body, reduces the installation degree of difficulty of body.

As an optimal scheme of the wireless screen transmission device, the inner wall of the first cover body and/or the second cover body is/are provided with a limiting groove, the avoidance hole is communicated with the limiting groove, and the second convex part is clamped in the limiting groove. Through setting up the spacing groove, can reduce the installation degree of difficulty of body on the one hand, on the other hand can prevent effectively that when externally dragging first convex part, the USB main part takes place to become flexible and breaks away from with the hookup location of mainboard.

As a preferable scheme of the wireless screen transmission device, conductive foam is arranged between the main board and the inner wall of the shell, the wire is clamped between the conductive foam and the inner wall of the shell, and at least the part of the shell connected with the conductive foam is made of metal material. Through setting up the cotton of electrically conductive bubble, the cotton metal material area of connecting wire and casing of electrically conductive bubble can solve EMC and static problem.

As a preferable scheme of the wireless screen transmission device, a heat-conducting glue is arranged between one side surface of the main board provided with the components and the inner wall of the shell, and at least the part of the shell, which is in contact with the heat-conducting glue, is made of a metal material. Through setting up the heat conduction glue, can utilize the metal material region on the casing to dispel the heat effectively on the heat transfer that produces on the mainboard gives the casing, promotes the radiating effect.

As a preferred scheme of the wireless screen transmission device, the first cover body is connected with the second cover body through a buckle assembly, a fixing column is arranged on the inner wall of the first cover body, a threaded hole is formed in the fixing column, a first through hole is formed in the second cover body corresponding to the threaded hole, and a screw penetrates through the first through hole and is screwed in the threaded hole to connect the first cover body with the second cover body. Through setting up buckle subassembly, can realize the equipment pre-fixing to first lid and second lid, and the screw can further fastening connection first lid and second lid, and the cooperation of buckle subassembly and screw not only can reduce the equipment degree of difficulty, can also guarantee the stability of post assembling structure.

As an optimal scheme of the wireless screen transmission device, a second through hole is formed in the main board corresponding to the fixing column, one end, far away from the first cover body, of the fixing column can penetrate through the second through hole, a limiting plate is arranged on the fixing column, and the limiting plate is abutted against one side, far away from the main board, of the second cover body, so that the main board is spaced from the inner wall of the first cover body. Through set up the second through-hole on the mainboard, the fixed column and the screw that can utilize first lid and second lid to connect are fixed the position of mainboard, prevent effectively that the mainboard from removing in the casing, and the setting of limiting plate can prevent effectively that the mainboard from removing along the axis direction of fixed column.

As a preferred scheme of wireless biography screen device, be provided with the printing opacity district on the casing, be located on the mainboard one side that the mainboard is close to the printing opacity district is provided with the LED lamp, printing opacity district vertical projection is in projection area on the mainboard with set for the distance has between the LED lamp. Through setting up staggering printing opacity district and LED lamp, can avoid light to jet out perpendicularly, promote the degree of consistency of light effect.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is an exploded schematic view of a first viewing angle of a wireless screen transmission device according to an embodiment of the present invention.

Fig. 2 is an exploded schematic view of a second viewing angle of the wireless screen transmission device according to the embodiment of the present invention.

Fig. 3 is a cross-sectional view of the wireless screen transmission device of the embodiment of the present invention.

Fig. 4 is a partially enlarged view of a portion a of fig. 1.

Fig. 5 is a cross-sectional view of a wireless screen transmission device according to an embodiment of the present invention (USB assembly not shown).

In the figure:

1. a first cover body; 11. fixing a column; 12. a limiting plate; 13. a light-transmitting region; 14. a limiting groove; 15. a first end face; 16. a first notch; 2. a second cover body; 21. a first through hole; 22. mounting grooves; 23. a second end face; 24. a second notch; 3. a main board; 31. a second through hole; 32. a chip; 33. a socket; 4. a USB component; 41. a body; 42. a USB main body; 43. a first convex portion; 44. a wire; 45. limiting ribs; 451. a connecting portion; 452. a limiting part; 46. a second convex portion; 5. conductive foam; 6. heat conducting glue; 7. a buckle assembly; 71. buckling; 72. a hook; 8. a screw; 9. a wear-resistant backing plate; 10. a support protrusion; 110. a groove; 120. a first flange; 130. a second flange.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1, an embodiment of the present invention provides a wireless screen transmission device, which includes a housing and a USB assembly 4. The shell comprises a first cover body 1 and a second cover body 2 connected with the first cover body 1, and an accommodating cavity is formed between the first cover body 1 and the second cover body 2. Hold the intracavity and be provided with mainboard 3 in the utility model discloses an in the embodiment, this mainboard 3 and first lid 1 and/or 2 fixed connection of second lid.

As shown in fig. 1 and 2, the USB assembly 4 includes an annular main body 41 and a USB main body 42, an inner wall of the main body 41 abuts against outer walls of the first cover 1 and the second cover 2, respectively, and the main body 41 shields a joint at a connection position of the first cover 1 and the second cover 2. One side of the body 41 departing from the shell is convexly provided with a first convex part 43, at least part of the USB main body 42 is fixed in the first convex part 43, the first convex part 43 and the body 41 are integrally manufactured and formed by elastic colloid, and one end of the USB main body 42 close to the shell is connected with the mainboard 3 through a wire 44. The first convex part 43 for fixing the USB main body 42 and the body 41 are integrally manufactured and formed, so that the installation difficulty of the USB component 4 can be reduced, and the integrally formed structure can effectively prevent one end of the USB main body 42 connected with the mainboard 3 from loosening and falling off when the first convex part 43 is pulled by external force, so that the stability of signal transmission is ensured; through adopting the shaping of taking elastic colloid to make first convex part 43 and body 41, and the body 41 setting of annular form can shelter from the seam of the hookup location of two lids outside the casing effectively, promotes sealed effect, and the sheltering from of body 41 can make whole wireless biography screen device's outward appearance pleasing to the eye.

As shown in fig. 1 and fig. 2, in the present embodiment, the body 41 and the first protrusion 43 are integrally formed by injection molding of silicone, and the USB main body 42 is integrally formed with the first protrusion 43 during the injection molding of the body 41 and the first protrusion 43, so as to achieve fixation. Of course, the material of the body 41 and the first protrusion 43 is not limited to silicone, but may also be made of other soft colloid such as rubber, the soft colloid has elasticity, and may be deformed in a stretching or extruding manner, so as to effectively seal the joint between the connection positions of the first cover body 1 and the second cover body 2, and the body 41 may be in a state of being attached to the housing, during manufacturing, the size of the inner ring of the annular body 41 may be set slightly smaller than the cross-sectional size of the housing, and the body 41 is deformed by stretching, and then is sleeved on the housing at the joint corresponding to the connection position of the first cover body 1 and the second cover body 2.

As shown in fig. 1 and 2, a plug is disposed at an end of the wire 44, a socket 33 is disposed at a corresponding position on the motherboard 3, and the plug is plugged into the socket 33 to realize signal transmission connection between the motherboard 3 and the USB body 42. Specifically, the length of the wire 44 is greater than the linear distance between the end of the USB body 42 close to the motherboard 3 and the socket 33 on the motherboard 3, that is, the wire 44 is reserved with some dimensions, so that the wire 44 is prevented from being in a stretched state after the plug thereof is plugged into the socket 33, and further, the plug is effectively prevented from being loosened or falling off. In other embodiments, the plug is not limited to be disposed at the end of the wire 44, and the socket 33 is disposed on the motherboard 3, and the end of the wire 44 may be directly soldered to the corresponding position on the motherboard 3.

As shown in fig. 1 and 2, one end of the USB body 42 away from the wire 44 is a USB plug, and the USB plug is exposed out of the first protrusion 43, so as to be conveniently plugged and matched with a USB socket on a notebook computer or an intelligent interactive tablet. It should be noted that the USB connector can be any USB connector with various specifications, such as Type-A, Mini-USB or Type-C USB.

In one embodiment, as shown in fig. 1 to 5, a limiting rib 45 protrudes from a side surface of the body 41 close to the housing, and the limiting rib 45 includes a connecting portion 451 connected to the body 41. The connecting portion 451 is interposed between the first lid 1 and the second lid 2. Specifically, after the first cover body 1 and the second cover body 2 are connected, the first end surface 15 of the first cover body 1 at the joint and the second end surface 23 of the second cover body 2 at the joint respectively abut against two opposite side surfaces of the connecting portion 451, and the width of the joint (i.e. the distance between the first end surface 15 and the second end surface 23) is smaller than the thickness of the connecting portion 451, because the connecting portion 451 is made of rubber, the connecting portion 451 is squeezed to deform after the first cover body 1 and the second cover body 2 are connected, so that the fixing of the main body 41 and the sealing of the contact portion are realized. Through setting up spacing muscle 45, can make body 41 and being connected of casing more stable, effectively prevent that body 41 from removing or breaking away from the casing for the casing.

In one embodiment, the side of the housing is provided with an annular groove 110, and the body 41 is clamped in the groove 110. By providing the groove 110, the position of the body 41 on the housing can be limited by the groove 110, and the body 41 can be prevented from being separated from the housing.

Specifically, the peripheral edge of the first cover body 1 extends to be provided with a first convex edge 120, the peripheral edge of the second cover body 2 extends to be provided with a second convex edge 130, the side of the housing is in the first convex edge 120 and the concave recess 110 formed between the second convex edges 130, and the body 41 is clamped in the recess 110 between the first convex edge 120 and the second convex edge 130. Further, end surfaces of both ends in the width direction of the body 41 abut the first flange 120 and the second flange 130, respectively. When the body 41 is clamped in the groove 110 between the first flange 120 and the second flange 130, the body 41 covers the joint of the connecting positions of the first cover body 1 and the second cover body 2 to effectively seal the connecting positions.

In the embodiment of the present invention, the limiting rib 45 further includes a limiting portion 452 disposed at one end of the connecting portion 451 away from the body 41, and the limiting portion 452 abuts against the inner wall of the housing. By providing stopper 452, stopper 452 abuts against the inner wall of the housing, the position of main body 41 is further limited, and main body 41 does not come off the housing even if main body 41 is pulled in the length direction or width direction of connecting portion 451.

In the present embodiment, the width of the position-limiting portion 452 is greater than the thickness of the connecting portion 451, and the connecting portion 451 is located in the middle of the position-limiting portion 452. The limiting part 452 arranged in this way can enable the connection between the body 41 and the housing to be more stable, and effectively prevent the body 41 from moving relative to the housing or separating from the housing.

Preferably, as shown in fig. 3 and 4, the cross section of the limiting rib 45 is T-shaped. The T-shaped stopper rib 45 can make the stopper 452 abut against both the inner walls of the first lid 1 and the second lid 2, and the effect of fixing the body 41 is the best. The T-shaped limiting rib 45 and the body 41 are combined to form a structure with an I-shaped cross section, after the structure is assembled with the first cover body 1 and the second cover body 2 which need to be buckled and assembled, the body 41 is fixed and stable and cannot fall off, and a seam between the first cover body 1 and the second cover body 2 is completely blocked, so that the sealing performance of the shell is improved, and the appearance of the whole wireless screen transmission device is more attractive.

Preferably, a plurality of spacing ribs 45 are distributed on the inner wall of the body 41 around the center of the housing. The position of the annular body 41 can be effectively limited by the plurality of limiting ribs 45, and the situation that the body 41 is tilted due to soft quality is effectively avoided.

The shape of the body 41 matches with the shape of the housing, and may be rectangular, circular, oval, rectangular with arc transition at corners, and the like. The body 41 is shaped to match the shape of the housing in advance, facilitating assembly of the body 41 with the housing. Of course, the body 41 can be made into a circular shape directly, and the body 41 can be sleeved on a shell with any structural form because the body 41 has elasticity and can be deformed.

In an embodiment, as shown in fig. 1 and fig. 2, a second protrusion 46 is disposed on an inner wall of the main body 41 corresponding to a leading-out position of the wire 44 of the USB main body 42, an avoiding hole is disposed on the housing corresponding to the second protrusion 46, and the second protrusion 46 is inserted into the avoiding hole. Through setting up second convex part 46, the grafting cooperation between the dodging hole of second convex part 46 and casing can carry out position direction to the installation of body 41, reduces the installation degree of difficulty of body 41.

Specifically, the first cover 1 is provided with a first notch 16, the second cover 2 is provided with a second notch 24, and after the first cover 1 and the second cover 2 are assembled, the first notch 16 and the second notch 24 are opposite to each other, and the first notch 16 and the second notch 24 form the avoiding hole together. This design may reduce the difficulty of mounting the second boss 46.

Furthermore, the inner wall of the first cover body 1 and the inner wall of the second cover body 2 are both provided with a limiting groove 14, the two limiting grooves 14 are opposite to each other in the notch after the first cover body 1 and the second cover body 2 are assembled, the avoiding hole is communicated with the limiting groove 14, and the second convex portion 46 is partially clamped in the limiting groove 14. Through setting up spacing groove 14, can reduce the installation degree of difficulty of body 41 on the one hand, on the other hand can effectively prevent to pull when first convex part 43 externally, and USB main part 42 takes place to become flexible and drops with the hookup location of mainboard 3.

In other embodiments, the limiting groove 14 may be disposed only on the first cover 1 or the second cover 2.

In addition, a fourth convex part (not shown in the figure) is convexly arranged on the groove wall of the limit groove 14, the length of the fourth convex part extends from the groove bottom of the limit groove 14 to the groove opening, and the fourth convex part is abutted against the outer side wall of the second convex part 46 to clamp the second convex part 46 in the limit groove 14. The number of the fourth convex parts can be one, or two or more, and the more the number of the fourth convex parts is, the better the abutting effect is.

In one embodiment, as shown in fig. 1, the main board 3 is provided with a conductive foam 5, the conductive wire 44 is clamped between the conductive foam 5 and the inner wall of the housing, and at least the portion of the housing connected with the conductive foam 5 is made of a metal material. By arranging the conductive foam 5, the conductive foam 5 connects the conductive wire 44 and the metal material area of the housing, so that the problems of EMC (EMC is an abbreviation of Electro Magnetic Compatibility, and chinese is translated into electromagnetic Compatibility, which means that a device or a system can operate in compliance with requirements in an electromagnetic environment and does not generate intolerable electromagnetic interference to any device in the environment) and static electricity can be solved.

In this embodiment, the second cover 2 is made of a metal material, the conductive foam 5 is located between the main board 3 and the inner wall of the second cover 2, and the conductive foam 5 abuts against the outer surface of the conductive wire 44. The entire second lid 2 is made of a metal material, so that the difficulty in manufacturing the second lid 2 can be reduced. In other embodiments, the second cover 2 may be made of plastic, a hole is formed in the second cover 2, and a metal plate is mounted at the hole, and the metal plate abuts against the conductive foam 5.

Further, a heat conducting glue 6 is arranged between one side surface of the main board 3 provided with the components and the inner wall of the shell, and at least the part of the shell, which is in contact with the heat conducting glue 6, is made of a metal material. Through setting up heat-conducting glue 6, can utilize the metal material region on the casing to dispel the heat effectively on the heat transfer that produces on the mainboard 3 for the casing, promote the radiating effect. Specifically, the side that mainboard 3 was provided with components and parts is just right second lid 2, and second lid 2 is whole to adopt metal material to make, so when 6 heat of transmission mainboard 3 of heat conducting glue are to second lid 2 on, can dispel the heat with higher speed, promote the radiating effect.

In the present embodiment, the component includes a chip 32, and the thermal conductive paste 6 covers the chip 32. The chip 32 is the main heating element on the mainboard 3 usually, consequently directly sets up the position at chip 32 with heat-conducting glue 6, can realize the pertinence heat dissipation, promotes mainboard 3's radiating effect, has reduced the material use amount of heat-conducting glue 6 simultaneously, has reduced manufacturing cost.

The conductive foam 5 and the heat-conducting glue 6 can also buffer the mainboard 3 besides the above functions, and prevent collision between components on the mainboard 3 and the second cover body 2.

The first cover body 1 is connected with the second cover body 2 through the buckle assembly 7, the inner wall of the first cover body 1 is provided with a fixing column 11, a threaded hole is formed in the fixing column 11, a first through hole 21 is formed in the second cover body 2 corresponding to the threaded hole, and the screw 8 penetrates through the first through hole 21 and is screwed in the threaded hole so as to connect the first cover body 1 with the second cover body 2. Through setting up buckle subassembly 7, can realize the equipment to first lid 1 and second lid 2 and fix in advance, and screw 8 can further fasten the first lid 1 of connection and second lid 2, and the cooperation of buckle subassembly 7 and screw 8 not only can reduce the equipment degree of difficulty, can also guarantee the stability of equipment back structure.

Further, as shown in fig. 1, a second through hole 31 is formed in the main board 3 corresponding to the fixing column 11, one end of the fixing column 11, which is far away from the first cover body 1, can pass through the second through hole 31, a limiting plate 12 is arranged on the fixing column 11, and the limiting plate 12 abuts against one side, away from the second cover body 2, of the main board 3, so that the main board 3 is spaced from the inner wall of the first cover body 1. By arranging the second through hole 31 on the main board 3, the position of the main board 3 can be fixed by using the fixing column 11 and the screw 8 which are connected by the first cover body 1 and the second cover body 2, so that the main board 3 is effectively prevented from moving in the shell, and the arrangement of the limiting plate 12 can effectively prevent the main board 3 from moving along the axial direction of the fixing column 11; by spacing the main board 3 from the inner wall of the first cover 1, heat transfer from the main board 3 to the first cover 1 can be prevented.

First lid 1 adopts plastics an organic whole to mould plastics, does benefit to the antenna signal transmission on the mainboard 3, also can reduce the weight of whole wireless biography screen device simultaneously. In addition, the buckle assembly 7 includes a buckle 71 and a hook 72 that is in snap fit with the buckle 71, one of the buckle 71 and the hook 72 is integrally injection molded with the first cover 1, and the other is disposed on the second cover 2.

The first cover body 1 is provided with a light-transmitting area 13, an LED lamp (not shown in the figure) is arranged on the main board 3 and on one side of the main board 3 close to the light-transmitting area 13, and a set distance is provided between a projection area of the light-transmitting area 13 vertically projected on the main board 3 and the LED lamp. Through setting up staggering printing opacity district 13 and LED lamp, can avoid light to jet out perpendicularly, promote the degree of consistency of light effect.

Specifically, the light-transmitting region 13 is integrally formed on the first cover 1. In other embodiments, a light hole may be formed in the first cover 1, and a transparent member may be installed in the light hole to form the light-transmitting region 13, or the light hole may be directly used as the light-transmitting region 13.

One side of the second cover body 2 departing from the first cover body 1 is provided with a wear-resistant backing plate 9. Through setting up wear-resisting backing plate 9, can pass the shell of screen device and place the plane to keep apart effectively wirelessly, prevent that the shell surface from being scraped flower and wearing and tearing, simultaneously, wear-resisting backing plate 9 can also realize the antiskid, prevents that wireless screen device from sliding on placing the plane at will, prevents effectively that wireless screen device from falling the damage.

In this embodiment, the wear-resistant pad 9 is a silica gel plate, and at least three supporting protrusions 10 are disposed on a side surface of the wear-resistant pad 9 away from the second cover body 2, and the supporting protrusions 10 and the wear-resistant pad 9 are formed by integrally injection molding of silica gel.

Further, the wear-resistant pad 9 is attached to the second cover 2 by an adhesive. The fixing difficulty of the wear-resistant backing plate 9 can be reduced by the sticking and fixing mode, and the manufacturing cost is reduced.

The wear-resistant pad 9 shields the first through hole 21 on the second cover body 2, so that the screw 8 is not exposed, and the wear-resistant pad 9 can also seal the gap between the screw 8 and the first through hole 21.

One side surface of the second cover body 2, on which the wear-resistant liner plate 9 is mounted, is concavely provided with a mounting groove 22, the wear-resistant liner plate 9 is mounted in the mounting groove 22, and one side surface of the wear-resistant liner plate 9, which is far away from the groove bottom of the mounting groove 22, protrudes out of the notch of the mounting groove 22. The installation position of the wear-resistant pad plate 9 can be limited by the installation groove 22, and the installation difficulty of the wear-resistant pad plate 9 is reduced.

In the present embodiment, the first through hole 21 penetrates the groove bottom of the mounting groove 22.

In a specific embodiment of the present invention, a plurality of buckles 71 are annularly disposed on the first cover 1, three fixing columns 11 distributed annularly are disposed on the inner side of the first cover 1, hooks 72 corresponding to the quantity and the quantity of the buckles 71 on the first cover 1 are disposed on the second cover 2, three first through holes 21 corresponding to the quantity and the position are disposed on the corresponding fixing columns 11 on the second cover 2, a first convex edge 120 is disposed on the periphery of the first cover 1, a second convex edge 130 is disposed on the periphery of the second cover 2, a concave groove 110 is formed on the side surface of the casing between the first convex edge 120 and the second convex edge 130, the body 41 of the USB assembly 4 is clamped in the groove 110, and the annular shape is formed on the casing because the body 41 is an annular shape, therefore, the annular shape of the groove 110 is also disposed on the outer side of the casing.

The assembly process of the wireless screen transmission device of the embodiment is as follows:

step S100, aligning the second through hole 31 on the motherboard 3 with the fixing post 11 of the first cover 1 and inserting, so that the motherboard 3 is mounted on the first cover 1;

step S200, sleeving the body 41 of the integrally injection-molded USB component 4 outside the first cover body 1, and partially clamping the body 41 in the groove 110;

step S300, adhering the conductive foam 5 on the chip 32 of the mainboard 3 through a conductive piece;

step S400, the second cover body 2 is mounted on the first cover body 1, and the fastener 71 is fastened to the hook 72 to realize pre-fixing, at this time, the remaining portion of the body 41 is fastened in the groove 110, and the end surfaces of the two ends of the body 41 in the width direction respectively abut against the first convex edge 120 and the second convex edge 130. Meanwhile, the connecting part 451 of the limiting rib 45 is clamped at the joint of the first cover body 1 and the second cover body 2, and the limiting part 452 of the limiting rib 45 abuts against the inner wall of the shell;

step S500, screwing the screw 8 into the threaded hole of the fixing column 11 after passing through the first through hole 21 on the second cover body 2, so as to lock the first cover body 1 and the second cover body 2;

step S600, adhering the wear-resistant pad 9 to the mounting groove 22 of the second cover 2, and completing the assembly of the whole wireless screen transmission device.

In the description herein, it is to be understood that the terms "upper" and the like are used in a descriptive sense and based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, configuration and operation in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description herein, references to the description of "an embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that may be understood by those skilled in the art.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. A wireless screen transmission device, comprising:

2. A wireless screen transmission device according to claim 1, wherein the housing has an annular groove on a side surface thereof, and the body is engaged with the groove.

3. The wireless screen transmission device of claim 2, wherein a first convex edge extends from the peripheral edge of the first cover body, a second convex edge extends from the peripheral edge of the second cover body, a groove is formed between the first convex edge and the second convex edge by the side surface of the housing, and the body is clamped in the groove between the first convex edge and the second convex edge.

4. The wireless screen transmission device according to claim 1, wherein a limiting rib is convexly arranged on one side surface of the body close to the shell, the limiting rib comprises a connecting portion connected with the body, and the connecting portion is clamped in a seam between the first cover body and the second cover body.

5. The wireless screen transmission device according to claim 4, wherein a limiting part is connected to one end of the connecting part, which is far away from the body, and the limiting part abuts against the inner wall of the shell.

6. A wireless screen transmission device according to claim 5, wherein the cross section of the limiting rib is T-shaped.

7. A wireless screen transmission device according to claim 4, wherein a plurality of limiting ribs are distributed on the inner wall of the body around the center of the shell.

8. The wireless screen transmission device according to claim 1, wherein a second convex portion is provided on an inner wall of the body at a position corresponding to a leading-out position of the wire of the USB main body, an avoidance hole is provided on the housing corresponding to the second convex portion, and the second convex portion is inserted into the avoidance hole.

9. The wireless screen transmission device according to claim 8, wherein a limiting groove is formed in an inner wall of the first cover and/or the second cover, the avoidance hole is communicated with the limiting groove, and the second convex portion is partially clamped in the limiting groove.

10. A wireless screen transmission device according to claim 1, wherein a conductive foam is disposed between the main board and the inner wall of the housing, the conductive wire is clamped between the conductive foam and the inner wall of the housing, and at least a portion of the housing connected to the conductive foam is made of a metal material.

11. The wireless screen transmission device according to claim 1, wherein a heat conductive adhesive is disposed between a side of the main board on which the components are disposed and an inner wall of the housing, and at least a portion of the housing in contact with the heat conductive adhesive is made of a metal material.

12. The wireless screen transmission device according to claim 1, wherein the first cover body is connected with the second cover body through a buckle assembly, a fixing column is arranged on an inner wall of the first cover body, a threaded hole is formed in the fixing column, a first through hole is formed in the second cover body corresponding to the threaded hole, and a screw penetrates through the first through hole and is screwed in the threaded hole to connect the first cover body with the second cover body.

13. The wireless screen transmission device according to claim 12, wherein a second through hole is formed in the main board corresponding to the fixing column, one end, away from the first cover, of the fixing column can penetrate through the second through hole, a limiting plate is arranged on the fixing column, and the limiting plate abuts against one side, away from the second cover, of the main board, so that the main board is spaced from the inner wall of the first cover.

14. The wireless screen transmission device according to claim 1, wherein a light-transmitting area is arranged on the housing, an LED lamp is arranged on the main board and on one side of the main board close to the light-transmitting area, and a projection area of the light-transmitting area vertically projected on the main board is a set distance away from the LED lamp.