Wireless screen transmission device

Abstract

The present invention relates to a wireless screen transmission device, comprising a shell and a USB component, wherein the shell comprises a first cover body and a second cover body connected to the first cover body, a receiving cavity is formed between the first cover body and the second cover body, a main board is arranged in the receiving cavity, and the USB component comprises an annular main body and a USB body, the main body is arranged outside the shell, the inner wall of the main body abuts against the outer wall of the first cover body and the second cover body respectively, the main body shields the seam at the connection position between the first cover body and the second cover body, a first convex part is protruded on the side of the main body away from the shell, the USB body is at least partially fixed in the first convex part, the first convex part and the main body are integrally manufactured and formed by elastic colloid, and one end of the USB body close to the shell is connected to the main board through a wire. The wireless screen transmission device of the present invention has a simple structure, is easy to assemble, has a beautiful appearance, and has a good sealing effect.

Description

Technical Field

[0001] The present invention relates to a device for transmitting video image signals, and in particular to a wireless screen transmission device. Background Art

[0002] The wireless screen transmission device is a device used to transmit video image signals. When using it, the user can use the wireless screen transmission device to synchronously display the operation interface on the laptop to the smart interactive tablet, and operate on the laptop to synchronously display on the smart interactive tablet, so that other people can see the content on the operation interface.

[0003] The wireless screen transmission device usually includes an upper cover and a lower cover that are interlocked, and a receiving cavity for receiving components such as a motherboard is formed between the upper cover and the lower cover. The USB cable of the wireless screen transmission device is usually connected to the motherboard in the receiving cavity at one end, and the other end extends to the outside of the upper cover and the lower cover to be plugged into the USB port on a laptop computer and other devices to realize signal transmission, and there is an opening between the upper cover and the lower cover for the USB cable to pass through. In the process of realizing the present invention, the inventor found that the prior art has the following defects: 1. It is difficult to assemble the USB cable with the upper cover and the lower cover, and a limiting structure needs to be set on the surface of the USB cable to prevent the USB cable from being separated from the upper cover and the lower cover, which increases the difficulty of manufacturing the USB cable; 2. When the USB cable is pulled externally, one end of the USB cable connected to the motherboard is easily loosened or falls off, resulting in signal transmission failure; 3. After the upper cover and the lower cover are assembled, there is a seam at the assembly position, and external water vapor and dust and other substances can easily enter the receiving cavity through the seam, and the exposed seam affects the appearance. Summary of the invention

[0004] The purpose of the embodiment of the present invention is to provide a wireless screen transmission device, which has a simple structure, is easy to assemble, has a beautiful appearance, and has a good sealing effect.

[0005] To achieve this purpose, the embodiment of the present invention adopts the following technical solutions:

[0006] A wireless screen transmission device is provided, comprising:

[0007] A housing, the housing comprising a first cover body and a second cover body connected to the first cover body, an accommodating cavity is formed between the first cover body and the second cover body, and a mainboard is arranged in the accommodating cavity;

[0008] A USB component, the USB component includes an annular body and a USB main body, the body is arranged outside the shell, the inner wall of the body is respectively abutted against the outer wall of the first cover body and the second cover body, the body blocks the seam at the connection position of the first cover body and the second cover body, the body is protruding with a first convex part on the side away from the shell, the USB main body is at least partially fixed in the first convex part, the first convex part and the body are integrally manufactured by elastic colloid, and the end of the USB main body close to the shell is connected to the mainboard through a wire.

[0009] The beneficial effects of the present invention are as follows: by integrally manufacturing the first protrusion that fixes the USB body with the main body, the difficulty of installing the USB component can be reduced, and this one-piece structure can effectively prevent the end of the USB body connected to the motherboard from loosening and falling off when the first protrusion is pulled by external force, thereby ensuring the stability of signal transmission; by manufacturing the first protrusion and the main body with elastic colloid, and the ring-shaped main body is arranged outside the shell, the seam at the connection position of the two cover bodies can be effectively blocked, thereby improving the sealing effect, and the shielding of the main body can make the appearance of the entire wireless screen transmission device beautiful.

[0010] As a preferred solution of the wireless screen transmission device, a circular groove is provided on the side of the shell, and the body is clamped in the groove. By providing the groove, the position of the body on the shell can be limited by the groove to prevent the body from being separated from the shell.

[0011] As a preferred solution of the wireless screen transmission device, a first convex edge is extended on the four edges of the first cover body, a second convex edge is extended on the four edges of the second cover body, the side surface of the shell is concave to form a groove between the first convex edge and the second convex edge, and the main body is clamped in the groove between the first convex edge and the second convex edge.

[0012] As a preferred solution of the wireless screen transmission device, a limiting rib is protruded from a side of the body close to the shell, and the limiting rib includes a connecting portion connected to the body, and the connecting portion is sandwiched between the first cover body and the second cover body. By providing the connecting portion, the connecting portion is sandwiched between the two cover bodies, which can effectively prevent the body from being separated from the shell.

[0013] As a preferred solution of the wireless screen transmission device, the end of the connection part away from the body is connected to a limiting part, and the limiting part abuts against the inner wall of the shell. By setting the limiting part, the limiting part abuts against the inner wall of the shell, the position of the body is further limited, and even if the body is pulled along the length or width direction of the connection part, the body will not be separated from the shell.

[0014] As a preferred solution of the wireless screen transmission device, the cross section of the limiting rib is T-shaped. The T-shaped limiting rib can make the limiting part abut against the inner walls of the first cover body and the second cover body, and the effect of fixing the main body is optimal.

[0015] As a preferred solution of the wireless screen transmission device, the inner wall of the body is provided with a plurality of limiting ribs around the center of the shell. The plurality of limiting ribs can effectively limit the position of the annular body and effectively prevent the body from moving relative to the shell or detaching from the shell.

[0016] As a preferred solution of the wireless screen transmission device, a second protrusion is provided on the inner wall of the body corresponding to the lead-out position of the wire of the USB body, and a avoidance hole is provided on the shell corresponding to the second protrusion, and the second protrusion is plugged into the avoidance hole. By providing the second protrusion and the plug-in cooperation between the second protrusion and the avoidance hole of the shell, the installation of the body can be guided, reducing the difficulty of installing the body.

[0017] As a preferred solution of the wireless screen transmission device, the inner wall of the first cover body and / or the second cover body is provided with a limiting groove, the avoidance hole is connected to the limiting groove, and the second protrusion is partially stuck in the limiting groove. By providing the limiting groove, on the one hand, the difficulty of installing the main body can be reduced, and on the other hand, it can effectively prevent the connection position between the USB main body and the mainboard from loosening and detaching when the first protrusion is pulled externally.

[0018] As a preferred solution of the wireless screen transmission device, conductive foam is arranged between the mainboard 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 to the conductive foam is made of metal material. By arranging the conductive foam, the conductive foam connects the wire and the metal material area of ​​the shell, the problems of EMC and static electricity can be solved.

[0019] As a preferred solution of the wireless screen transmission device, a thermal conductive adhesive is provided between the side of the mainboard where the components are provided and the inner wall of the shell, and at least the portion of the shell in contact with the thermal conductive adhesive is made of a metal material. By providing the thermal conductive adhesive, the heat generated on the mainboard can be transferred to the shell, and the metal material area on the shell is used to effectively dissipate the heat, thereby improving the heat dissipation effect.

[0020] As a preferred solution of the wireless screen transmission device, the first cover body and the second cover body are connected by a snap assembly, the inner wall of the first cover body is provided with a fixing column, the fixing column is provided with a threaded hole, the second cover body is provided with a first through hole corresponding to the threaded hole, and a screw passes through the first through hole and is screwed into the threaded hole to connect the first cover body and the second cover body. By providing the snap assembly, the first cover body and the second cover body can be pre-fixed for assembly, and the screw can further tighten the connection between the first cover body and the second cover body. The cooperation of the snap assembly and the screw can not only reduce the difficulty of assembly, but also ensure the stability of the assembled structure.

[0021] As a preferred solution of the wireless screen transmission device, a second through hole is provided on the main board corresponding to the fixed column, and the end of the fixed column away from the first cover body can pass through the second through hole, and a limiting plate is provided on the fixed column, and the limiting plate abuts against the side of the main board away from the second cover body, so that the main board is spaced from the inner wall of the first cover body. By providing a second through hole on the main board, the position of the main board can be fixed by using the fixed column and screws connecting the first cover body and the second cover body, effectively preventing the main board from moving in the shell, and the provision of the limiting plate can effectively prevent the main board from moving along the axial direction of the fixed column.

[0022] As a preferred solution of the wireless screen transmission device, a light-transmitting area is provided on the housing, an LED light is provided on the mainboard and on a side of the mainboard close to the light-transmitting area, and a set distance is provided between the projection area of ​​the light-transmitting area vertically projected on the mainboard and the LED light. By staggering the light-transmitting area and the LED light, vertical emission of light can be avoided, thereby improving the uniformity of the lighting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of a first-perspective breakdown of the wireless screen transmission device according to an embodiment of the present invention.

[0025] Figure 2 It is a schematic diagram of the decomposition of the wireless screen transmission device from a second viewing angle according to an embodiment of the present invention.

[0026] Figure 3 It is a cross-sectional view of the wireless screen transmission device according to an embodiment of the present invention.

[0027] Figure 4 for Figure 1 A local enlarged schematic diagram of point A.

[0028] Figure 5 This is a cross-sectional view of a wireless screen transmission device according to an embodiment of the present invention (USB component is not shown).

[0029] In the figure:

[0030] 1. First cover body; 11. Fixed column; 12. Limiting plate; 13. Translucent area; 14. Limiting groove; 15. First end face; 16. First notch; 2. Second cover body; 21. First through hole; 22. Mounting groove; 23. Second end face; 24. Second notch; 3. Main board; 31. Second through hole; 32. Chip; 33. Socket; 4. USB component; 41. Main body; 42. USB main body; 43. First convex part; 44. Wire; 45. Limiting rib; 451. Connecting part; 452. Limiting part; 46. Second convex part; 5. Conductive foam; 6. Thermal conductive adhesive; 7. Buckle assembly; 71. Buckle; 72. Hook; 8. Screw; 9. Wear-resistant pad; 10. Support convex part; 110. Groove; 120. First convex edge; 130. Second convex edge. DETAILED DESCRIPTION

[0031] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] like Figure 1As shown, an embodiment of the present invention provides a wireless screen transmission device, including a housing and a USB component 4. The housing includes a first cover body 1 and a second cover body 2 connected to the first cover body 1, and a receiving cavity is formed between the first cover body 1 and the second cover body 2. A mainboard 3 is arranged in the receiving cavity. In one embodiment of the present invention, the mainboard 3 is fixedly connected to the first cover body 1 and / or the second cover body 2.

[0035] like Figure 1 , Figure 2 As shown, the USB component 4 includes an annular body 41 and a USB main body 42. The inner wall of the body 41 abuts against the outer wall of the first cover 1 and the second cover 2 respectively, and the body 41 covers the seam at the connection position of the first cover 1 and the second cover 2. The body 41 is provided with a first protrusion 43 on one side away from the shell. The USB main body 42 is at least partially fixed in the first protrusion 43. The first protrusion 43 and the body 41 are integrally manufactured by elastic colloid. The end of the USB main body 42 close to the shell is connected to the mainboard 3 through a wire 44. By integrally manufacturing the first protrusion 43 that fixes the USB body 42 with the main body 41, the difficulty of installing the USB component 4 can be reduced, and this one-piece structure can effectively prevent the end of the USB body 42 connected to the motherboard 3 from loosening and falling off when the first protrusion 43 is pulled by external force, thereby ensuring the stability of signal transmission; by manufacturing the first protrusion 43 and the main body 41 with elastic colloid, and the ring-shaped main body 41 is arranged outside the shell, the seam at the connection position of the two covers can be effectively blocked, thereby improving the sealing effect, and the shielding of the main body 41 can make the appearance of the entire wireless screen transmission device beautiful.

[0036] like Figure 1 , Figure 2 As shown, in this embodiment, the body 41 and the first protrusion 43 are integrally molded by silicone injection molding, and the USB body 42 is integrally molded with the first protrusion 43 during the injection molding process of the body 41 and the first protrusion 43 to achieve fixation. Of course, the material of the body 41 and the first protrusion 43 is not limited to silicone, and can also be made of other soft colloids such as rubber. The soft colloid has elasticity and can be deformed by stretching or extrusion to effectively seal the seam at the connection position of the first cover 1 and the second cover 2, and the body 41 can be in a state of being fitted with the shell. During manufacturing, the inner circle size of the annular body 41 can be set to be slightly smaller than the cross-sectional size of the shell, and the body 41 is deformed by stretching it, and then it is sleeved on the shell at the seam corresponding to the connection position of the first cover 1 and the second cover 2.

[0037] like Figure 1 , Figure 2As shown, a plug is provided at the end of the wire 44, and a socket 33 is provided at a corresponding position on the motherboard 3. The plug is plugged into the socket 33 to realize the signal transmission connection between the motherboard 3 and the USB body 42. Specifically, the length of the wire 44 is greater than the straight-line 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 has some reserved dimensions to prevent the wire 44 from being in a straight state after the plug is plugged into the socket 33, thereby effectively preventing the plug from loosening or falling off. In other embodiments, it is not limited to providing a plug at the end of the wire 44 and providing a socket 33 on the motherboard 3, and the end of the wire 44 can also be directly welded to the corresponding position on the motherboard 3.

[0038] like Figure 1 , Figure 2 As shown, the end of the USB body 42 away from the wire 44 is a USB plug connector, which is exposed on the first protrusion 43, so as to be plugged into and matched with the USB socket on a laptop or a smart interactive tablet. It should be noted that the USB plug connector can be a USB plug connector of various specifications, such as Type-A, Mini-USB or Type-C USB.

[0039] In one embodiment, if Figures 1 to 5 As shown, a limiting rib 45 is protruded from one side of the body 41 close to the shell, and the limiting rib 45 includes a connecting portion 451 connected to the body 41. The connecting portion 451 is clamped at the joint between the first cover 1 and the second cover 2. Specifically, after the first cover 1 and the second cover 2 are connected, the first end face 15 of the first cover 1 at the joint and the second end face 23 of the second cover 2 at the joint are respectively against the two opposite sides of the connecting portion 451, and the width of the joint (that is, the distance between the first end face 15 and the second end face 23) is less than the thickness of the connecting portion 451. Since the connecting portion 451 is made of rubber, the first cover 1 and the second cover 2 will squeeze the connecting portion 451 to deform after being connected, so as to fix the body 41 and seal the contact point. By providing the limiting rib 45, the connection between the body 41 and the shell can be made more stable, effectively preventing the body 41 from moving relative to the shell or detaching from the shell.

[0040] In one embodiment, a circular groove 110 is provided on the side of the housing, 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 to prevent the body 41 from being separated from the housing.

[0041] Specifically, the first cover body 1 is provided with a first flange 120 extending from the periphery of the edge, the second cover body 2 is provided with a second flange 130 extending from the periphery of the edge, the side surface of the housing is concave between the first flange 120 and the second flange 130 to form a groove 110, and the body 41 is clamped in the groove 110 between the first flange 120 and the second flange 130. Further, the end surfaces at both ends of the body 41 in the width direction are respectively abutted against the first flange 120 and the second flange 130. When the body 41 is clamped in the groove 110 between the first flange 120 and the second flange 130, the body 41 blocks the seam at the connection position of the first cover body 1 and the second cover body 2 to effectively seal it.

[0042] 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 main body 41, and the limiting portion 452 abuts against the inner wall of the shell. By providing the limiting portion 452, the limiting portion 452 abuts against the inner wall of the shell, and the position of the main body 41 is further limited, and even if the main body 41 is pulled along the length or width direction of the connecting portion 451, the main body 41 will not be separated from the shell.

[0043] In this embodiment, the width of the 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 limiting portion 452. The limiting portion 452 configured in this way can make the connection between the body 41 and the shell more stable, and effectively prevent the body 41 from moving relative to the shell or detaching from the shell.

[0044] Preferably, if Figure 3 and 4 As shown, the cross section of the limiting rib 45 is T-shaped. The T-shaped limiting rib 45 can make the limiting portion 452 abut against the inner walls of the first cover body 1 and the second cover body 2, and the effect of fixing the main body 41 is optimal. The T-shaped limiting rib 45 and the main body 41 are combined to form a structure with an I-shaped cross section. After this structure is assembled with the first cover body 1 and the second cover body 2 that need to be assembled with buckles, the main body 41 is fixed very firmly and will not fall off, and the joint between the first cover body 1 and the second cover body 2 is completely blocked, which not only increases the sealing of the shell, but also makes the appearance of the entire wireless screen transmission device more beautiful.

[0045] Preferably, the inner wall of the body 41 is provided with a plurality of limiting ribs 45 around the center of the shell. The plurality of limiting ribs 45 can effectively limit the position of the annular body 41, and effectively prevent the body 41 from warping due to its soft quality.

[0046] The shape of the body 41 matches the shape of the shell, and can be a rectangular, circular, elliptical, rectangular with arc transition at the corner, etc. The shape of the body 41 is pre-made to match the shape of the shell, which facilitates the assembly of the body 41 and the shell. Of course, the body 41 can be directly made into a circle, because the body 41 is elastic and deformable, so it can also be mounted on a shell of any structural form.

[0047] In one embodiment, if Figure 1 , Figure 2 As shown, the inner wall of the body 41 is provided with a second protrusion 46 corresponding to the lead-out position of the wire 44 of the USB body 42, and the shell is provided with an escape hole corresponding to the second protrusion 46, and the second protrusion 46 is inserted into the escape hole. By providing the second protrusion 46 and the plug-in cooperation between the second protrusion 46 and the escape hole of the shell, the installation of the body 41 can be guided, reducing the difficulty of installing the body 41.

[0048] Specifically, the first cover body 1 is provided with a first notch 16, and the second cover body 2 is provided with a second notch 24. When the first cover body 1 and the second cover body 2 are assembled, the first notch 16 and the second notch 24 are located opposite to each other, and the two together form the avoidance hole. This design can reduce the difficulty of installing the second protrusion 46.

[0049] Furthermore, the inner wall of the first cover body 1 and the inner wall of the second cover body 2 are both provided with limiting grooves 14, and the two limiting grooves 14 are opposite to each other after the first cover body 1 and the second cover body 2 are assembled, the avoidance hole is connected to the limiting grooves 14, and the second protrusion 46 is partially stuck in the limiting grooves 14. By providing the limiting grooves 14, on the one hand, the difficulty of installing the body 41 can be reduced, and on the other hand, it can effectively prevent the connection position between the USB body 42 and the motherboard 3 from loosening and falling off when the first protrusion 43 is pulled externally.

[0050] In other embodiments, the limiting groove 14 may be provided only on the first cover body 1 or the second cover body 2 .

[0051] In addition, a fourth convex portion (not shown in the figure) is protruding from the groove wall of the limiting groove 14, and the length of the fourth convex portion extends from the groove bottom of the limiting groove 14 toward the groove opening, and the fourth convex portion is pressed against the outer side wall of the second convex portion 46 to clamp the second convex portion 46 in the limiting groove 14. The number of the fourth convex portions can be one, or two or more, and the more the number of the fourth convex portions is set, the better the pressing effect.

[0052] In one embodiment, if Figure 1As shown, a conductive foam 5 is provided on the mainboard 3, and a 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 to the conductive foam 5 is made of a metal material. By providing the conductive foam 5, the conductive foam 5 connecting the wire 44 and the metal material area of ​​the housing, the problems of EMC (EMC is the abbreviation of Electro Magnetic Compatibility, which is translated into electromagnetic compatibility in Chinese and refers to the ability of a device or system to meet the requirements of its electromagnetic environment and not to generate intolerable electromagnetic interference to any device in its environment) and static electricity can be solved.

[0053] In this embodiment, the second cover 2 is made of 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 is in contact with the outer surface of the wire 44. By making the entire second cover 2 of metal material, the manufacturing difficulty of the second cover 2 can be reduced. In other embodiments, the second cover 2 can also be made of plastic, a hole is opened on the second cover 2, and a metal plate is installed at the position of the hole, and the metal plate is in contact with the conductive foam 5.

[0054] Furthermore, a heat-conducting adhesive 6 is provided between the side of the mainboard 3 provided with components and the inner wall of the shell, and at least the part of the shell in contact with the heat-conducting adhesive 6 is made of metal material. By providing the heat-conducting adhesive 6, the heat generated on the mainboard 3 can be transferred to the shell, and the metal material area on the shell is used to effectively dissipate the heat, thereby improving the heat dissipation effect. Specifically, the side of the mainboard 3 provided with components faces the second cover 2, and the second cover 2 is made of metal material as a whole. Therefore, when the heat-conducting adhesive 6 transfers the heat of the mainboard 3 to the second cover 2, the heat dissipation can be accelerated, thereby improving the heat dissipation effect.

[0055] In this embodiment, the components include a chip 32, and the thermal conductive adhesive 6 covers the chip 32. The chip 32 is usually the main heating element on the mainboard 3, so the thermal conductive adhesive 6 is directly arranged at the position of the chip 32, which can achieve targeted heat dissipation, improve the heat dissipation effect of the mainboard 3, and at the same time reduce the material usage of the thermal conductive adhesive 6, thereby reducing the manufacturing cost.

[0056] In addition to the above functions, the conductive foam 5 and the thermal conductive adhesive 6 can also buffer the mainboard 3 to prevent collision between components on the mainboard 3 and the second cover 2 .

[0057] The first cover body 1 and the second cover body 2 are connected by a buckle assembly 7. A fixing column 11 is provided on the inner wall of the first cover body 1. A threaded hole is provided on the fixing column 11. A first through hole 21 is provided on the second cover body 2 corresponding to the threaded hole. The screw 8 passes through the first through hole 21 and is screwed into the threaded hole to connect the first cover body 1 and the second cover body 2. By providing the buckle assembly 7, the first cover body 1 and the second cover body 2 can be pre-fixed for assembly, and the screw 8 can further fasten the first cover body 1 and the second cover body 2. The cooperation of the buckle assembly 7 and the screw 8 can not only reduce the difficulty of assembly, but also ensure the stability of the assembled structure.

[0058] Furthermore, if Figure 1 As shown, a second through hole 31 is provided on the main board 3 corresponding to the fixing column 11, and the end of the fixing column 11 away from the first cover body 1 can pass through the second through hole 31. A limiting plate 12 is provided on the fixing column 11, and the limiting plate 12 abuts against the side of the main board 3 away from the second cover body 2, so that the main board 3 is spaced from the inner wall of the first cover body 1. By providing 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 connecting the first cover body 1 and the second cover body 2, effectively preventing the main board 3 from moving in the housing, and the setting of the limiting plate 12 can effectively prevent the main board 3 from moving along the axis direction of the fixing column 11; by spacing the main board 3 from the inner wall of the first cover body 1, the heat on the main board 3 can be prevented from being transferred to the first cover body 1.

[0059] The first cover body 1 is made of plastic integral injection molding, which is beneficial to the antenna signal transmission on the mainboard 3 and can also reduce the weight of the entire wireless screen transmission device. In addition, the buckle assembly 7 includes a buckle 71 and a hook 72 engaged with the buckle 71, one of the buckle 71 and the hook 72 is integrally injection molded with the first cover body 1, and the other is arranged on the second cover body 2.

[0060] The first cover 1 is provided with a light-transmitting area 13, and an LED lamp (not shown in the figure) is provided on the main board 3 and on a side of the main board 3 close to the light-transmitting area 13. There is a set distance between the projection area of ​​the light-transmitting area 13 vertically projected on the main board 3 and the LED lamp. By staggering the light-transmitting area 13 and the LED lamp, vertical emission of light can be avoided, thereby improving the uniformity of the lighting effect.

[0061] Specifically, the light-transmitting area 13 is integrally formed on the first cover 1. In other embodiments, a light-transmitting hole can be opened on the first cover 1, and a transparent member can be installed in the light-transmitting hole to form the light-transmitting area 13, or the light-transmitting hole can be directly used as the light-transmitting area 13.

[0062] A wear-resistant pad 9 is provided on the side of the second cover body 2 facing away from the first cover body 1. By providing the wear-resistant pad 9, the outer shell of the wireless screen transmission device and the placement plane can be effectively isolated to prevent the surface of the outer shell from being scratched and worn. At the same time, the wear-resistant pad 9 can also achieve anti-skid, preventing the wireless screen transmission device from sliding randomly on the placement plane, and effectively preventing the wireless screen transmission device from falling and being damaged.

[0063] In this embodiment, the wear-resistant pad 9 is a silicone plate. At least three supporting protrusions 10 are arranged on a side of the wear-resistant pad 9 away from the second cover 2. The supporting protrusions 10 and the wear-resistant pad 9 are integrally injection-molded with silicone.

[0064] Furthermore, the wear-resistant pad 9 is adhered to the second cover 2 by adhesive. The adhesive fixation method can reduce the difficulty of fixing the wear-resistant pad 9 and reduce the manufacturing cost.

[0065] The wear-resistant pad 9 blocks 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 .

[0066] A mounting groove 22 is concavely formed on one side of the second cover body 2 for mounting the wear-resistant pad 9. The wear-resistant pad 9 is mounted in the mounting groove 22. A side of the wear-resistant pad 9 away from the bottom of the mounting groove 22 protrudes from the notch of the mounting groove 22. The arrangement of the mounting groove 22 can limit the mounting position of the wear-resistant pad 9 and reduce the difficulty of mounting the wear-resistant pad 9.

[0067] In this embodiment, the first through hole 21 passes through the bottom of the mounting groove 22 .

[0068] In a specific embodiment of the present invention, a plurality of buckles 71 are arranged in a ring on the first cover body 1, three fixing columns 11 distributed in a ring are arranged on the inner side of the first cover body 1, and the second cover body 2 is provided with hooks 72 whose number is equal to and whose positions correspond to the buckles 71 on the first cover body 1, and three first through holes 21 whose number is equal and whose positions correspond to the fixing columns 11 are opened on the second cover body 2, a first convex edge 120 is extended around the edges of the first cover body 1, and a second convex edge 130 is extended around the edges of the second cover body 2, and the side surface of the shell is concave between the first convex edge 120 and the second convex edge 130 to form a groove 110, and the body 41 of the USB component 4 is clamped in this groove 110, and because the body 41 is annular, the groove 110 is also arranged in a ring on the outside of the shell.

[0069] The assembly process of the wireless screen transmission device of this embodiment is as follows:

[0070] Step S100, align the second through hole 31 on the main board 3 with the fixing column 11 of the first cover body 1 and insert the main board 3 to install it on the first cover body 1;

[0071] Step S200, the body 41 of the integrally-injected USB component 4 is placed outside the first cover 1, and a portion of the body 41 is stuck in the groove 110;

[0072] Step S300, pasting the conductive foam 5 onto the chip 32 of the mainboard 3 through a conductive member;

[0073] Step S400, install the second cover 2 on the first cover 1, and make the buckle 71 and the hook 72 engage to achieve pre-fixation, at this time, the remaining part of the body 41 is stuck in the groove 110, and the end surfaces of the two ends of the body 41 in the width direction respectively abut the first flange 120 and the second flange 130. At the same time, the connecting part 451 of the limiting rib 45 is clamped at the seam between the first cover 1 and the second cover 2, and the limiting part 452 of the limiting rib 45 abuts the inner wall of the shell;

[0074] Step S500, passing the screw 8 through the first through hole 21 on the second cover body 2 and then screwing it into the threaded hole of the fixing column 11 to lock the first cover body 1 and the second cover body 2;

[0075] Step S600, affix the wear-resistant pad 9 to the mounting groove 22 of the second cover body 2 to complete the assembly of the entire wireless screen transmission device.

[0076] In the description of this article, it is necessary to understand that the term "upper" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0077] In the description of this specification, the description of reference term "an embodiment" etc. means that the specific features, structures, materials or characteristics of the embodiment are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment.

[0078] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the purpose of clarifying the device. Those skilled in the art should take the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0079] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A wireless screen transmission device, characterized in that: include: A housing, the housing comprising a first cover body and a second cover body connected to the first cover body, an accommodating cavity is formed between the first cover body and the second cover body, and a mainboard is arranged in the accommodating cavity; A USB component, the USB component includes an annular body and a USB main body, the body is arranged outside the shell, the inner wall of the body is respectively abutted against the outer wall of the first cover body and the second cover body, the body blocks the seam at the connection position of the first cover body and the second cover body, the body is protruding with a first convex part on the side away from the shell, the USB main body is at least partially fixed in the first convex part, the first convex part and the body are integrally manufactured by elastic colloid, and the end of the USB main body close to the shell is connected to the mainboard through a wire.

2. The wireless screen transmission device according to claim 1, characterized in that: The side surface of the shell is provided with an annular groove, and the body is clamped in the groove.

3. The wireless screen transmission device according to claim 2, characterized in that: The first cover body has a first convex edge extending from the four edges thereof, the second cover body has a second convex edge extending from the four edges thereof, the side surface of the shell is concavely formed with a groove between the first convex edge and the second convex edge, 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, characterized in that: A limiting rib is protrudingly provided on a side surface of the main body close to the shell, and the limiting rib includes a connecting portion connected to the main 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, characterized in that: One end of the connection portion away from the main body is connected to a limiting portion, and the limiting portion abuts against an inner wall of the shell.

6. The wireless screen transmission device according to claim 5, characterized in that: The cross section of the limiting rib is T-shaped.

7. The wireless screen transmission device according to claim 4, characterized in that: The inner wall of the main body is provided with a plurality of limiting ribs distributed around the center of the shell.

8. The wireless screen transmission device according to claim 1, characterized in that: The inner wall of the main body is provided with a second protrusion corresponding to the lead-out position of the wire of the USB body, and the shell is provided with an avoidance hole corresponding to the second protrusion, and the second protrusion is inserted into the avoidance hole.

9. The wireless screen transmission device according to claim 8, characterized in that: The inner wall of the first cover body and / or the second cover body is provided with a limiting groove, the avoidance hole is connected to the limiting groove, and the second protrusion is partially clamped in the limiting groove.

10. The wireless screen transmission device according to claim 1, characterized in that: Conductive foam is arranged between the mainboard 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 to the conductive foam is made of metal material.

11. The wireless screen transmission device according to claim 1, characterized in that: A heat-conducting adhesive is arranged between a side surface of the mainboard on which components are arranged and an inner wall of the shell, and at least a portion of the shell in contact with the heat-conducting adhesive is made of a metal material.

12. The wireless screen transmission device according to claim 1, characterized in that: The first cover body is connected to the second cover body through a snap-fit ​​assembly. A fixing column is provided on the inner wall of the first cover body. A threaded hole is provided on the fixing column. A first through hole is provided on the second cover body corresponding to the threaded hole. A screw passes through the first through hole and is screwed into the threaded hole to connect the first cover body and the second cover body.

13. The wireless screen transmission device according to claim 12, characterized in that: A second through hole is provided on the main board corresponding to the fixing column, and an end of the fixing column away from the first cover body can pass through the second through hole. A limiting plate is provided on the fixing column, and the limiting plate abuts against a side of the main board away from the second cover body to space the main board from the inner wall of the first cover body.

14. The wireless screen transmission device according to claim 1, characterized in that: The shell is provided with a light-transmitting area, and an LED lamp is provided on the mainboard and on a side of the mainboard close to the light-transmitting area. There is a set distance between the projection area of ​​the light-transmitting area vertically projected onto the mainboard and the LED lamp.

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