Wireless screen projection equipment

Abstract

The utility model discloses wireless screen projection equipment which comprises a shell, a bottom plate, a mainboard module, a signal transmission line and an interface module. One end of the signal transmission line is connected with the mainboard module, and the other end of the signal transmission line is connected with the interface module; the interface module comprises a connection interface of at least one specification. The heat dissipation holes are formed in the bottom face of the shell, the bottom face of the shell is connected with the bottom plate, the gap exists between the bottom plate and the bottom face, and the projection of the bottom plate on the bottom face covers the area where the heat dissipation holes are located, so that the heat dissipation holes are hidden, the appearance attractiveness of equipment can be kept, and the amount of dust entering a mainboard module in the shell is reduced. Furthermore, the interface module is provided with connection interfaces of various specifications, so that different interface requirements of different projection screen devices under various conditions can be met.

Description

Technical Field

[0001] The present application relates to the field of wireless screen projection technology, and in particular to a wireless screen projection device. Background Art

[0002] Wireless projection devices connect to mobile devices via Wi-Fi or Bluetooth to project content onto a large screen, making it easy to watch videos, present documents, etc. These devices are portable and easy to use, suitable for a variety of scenarios such as home and office, and improve the convenience and experience of content sharing. Most of the existing wireless projection devices have a complex appearance and structure, which are not beautiful enough; at the same time, since users often use wireless projection devices in a variety of scenarios, external dust can easily enter the device, which will affect the performance of the device over time. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the present application provides a wireless screen projection device to solve at least one of the above-mentioned technical problems.

[0004] A wireless screen projection device includes a housing, a bottom plate, a mainboard module, a signal transmission line and an interface module. The mainboard module is located in the housing, one end of the signal transmission line is connected to the mainboard module, and the other end is connected to the interface module; the interface module includes a connection interface of at least one specification.

[0005] Among them, a plurality of heat dissipation holes are arranged on the bottom surface of the shell, the bottom surface of the shell is connected to the bottom plate, and there is a gap between the bottom plate and the bottom surface; the projection of the bottom plate on the bottom surface covers the area where the heat dissipation holes are located to hide the heat dissipation holes.

[0006] In a specific embodiment, it further comprises: a dustproof net. The dustproof net is arranged on one side of the housing close to the bottom surface; the projection of the dustproof net on the bottom surface covers the heat dissipation hole.

[0007] In a specific embodiment, it further includes: a fixing member. The mainboard module, the dust screen, the bottom surface of the housing, and the bottom plate are all provided with connection holes corresponding to the fixing member. The fixing member passes through the connection holes of the bottom plate, the bottom surface of the housing, the dust screen, and the mainboard module in sequence and is connected to the inner side of the top surface of the housing to fix the mainboard module and the dust screen in the housing and realize the connection between the bottom surface of the housing and the bottom plate.

[0008] In a specific embodiment, the bottom plate further includes one or more supporting feet, and the bottom surface of the shell is provided with a mounting groove that matches the supporting feet, wherein the depth of the mounting groove is less than the height of the supporting feet, so that a gap is generated between the bottom plate and the bottom surface of the shell while they are fixedly connected. In practical applications, the connecting hole on the bottom plate for the fixing member to pass through and the supporting feet can be integrated, that is, the supporting feet are hollow in design, and the hollow part thereof serves as the connecting hole for the fixing member to pass through, and the mounting groove is wider than the connecting hole.

[0009] In a specific embodiment, the interface module includes a first connection port module and a second connection port module. The first connection port module and the second connection port module are provided with connection interfaces of the same or different specifications.

[0010] Among them, the data connection signal transmission line is on one end of the first connection port module away from its own connection interface, and the end of the second connection port module away from its own connection interface includes a connection female port that matches at least one connection interface of the first connection port module, and the connection female port is used to be detachably connected to the connection interface of the first connection port module to realize data connection between the second connection port module and the first connection port module.

[0011] During use, when the user chooses to use the connection interface on the first connection port module, the second connection port module is disassembled from the first connection port module, and the first connection port module can be used to connect to an external device; when the user chooses to use the connection interface on the second connection port module, the first connection port module and the second connection port module are connected so that the second connection port module is data-connected with the first connection port module. At this time, the user can use the connection interface on the second connection port module to connect to an external device.

[0012] In a specific embodiment, a connection line is further included, one end of which is connected to the second connection port module; the other end of the connection line is connected to the first connection port module or the signal transmission line. By setting the connection line, when the user does not use the second connection port module, there is no data connection between the second connection port module and the first connection port module, but the second connection port module is still physically connected to the first connection port module or the signal transmission line, so that the second connection port module will not be lost when not in use.

[0013] In a specific embodiment, the connection interface includes one or more of a USB-A interface (Universal Serial Bus Type-A), a USB-B interface (Universal Serial Bus Type-B), a USB-C interface (Universal Serial Bus Type-C), a Lightning interface (Apple Lightning Connector), and a micro USB interface (Micro Universal Serial Bus).

[0014] In a specific embodiment, an indicator light module is provided on the top surface of the shell. In practical applications, the working state of the device can be indicated by the blinking of the indicator light or the color of the indicator light. The indicator light of the device can be always on when the device is in working state, and flash when the device is in connection state. The user can set the mode of the indicator light according to the actual situation. In a specific embodiment, the indicator light can include an LCD light (LCD, Liquid Crystal Display) and / or an LED light (LED, Light Emitting Diode). It should be noted that as long as the functions of emitting light and indicating can be achieved, lamps of other materials and types can also be used.

[0015] In a specific embodiment, the indicator light module includes an indicator light and a light guide, the indicator light is electrically connected to the mainboard module, the light guide is exposed on the top surface, and the indicator light and the light guide are correspondingly arranged so that the light of the indicator light is emitted through the light guide. In practical applications, there can be one or more indicator lights, and the light guide can be a light-guiding silicone. The light-guiding silicone has a uniform effect on the light of the indicator light, and can make the light emitted by the indicator light more uniform and soft. It should be noted that as long as the light-guiding effect of the light guide can be achieved, other materials can be used as the light guide.

[0016] In a specific embodiment, a lens is further included. The top surface of the shell is provided with a groove matching the lens. The lens is located in the groove. The lens includes a transparent area, and the transparent area covers the area where the light guide is located.

[0017] In a specific embodiment, the bottom plate is covered with an adhesive layer. It should be noted that in actual applications, as long as the shell can be fixedly attached to the external object, and it can be used repeatedly and removed without leaving traces, the adhesive layer can be made of materials such as gel, nano glue or magnetic absorption layer. In an actual application process, the adhesive layer can be a gel layer. Since the gel layer has a certain thickness, the user can not only stick the device on a flat surface through the gel layer, but also stick the device on a micro-arc surface. This makes the use scenario range of the projection device can be further expanded, suitable for a wider range of mobile office scenarios, such as in-vehicle use and outdoor use.

[0018] Beneficial effect: The present application provides a wireless screen projection device, which can achieve the design of hidden heat dissipation holes while ensuring the heat dissipation efficiency of the screen projection device by setting a plurality of heat dissipation holes on the bottom surface of the shell and setting a bottom plate connected to the bottom surface to hide the heat dissipation holes, thereby maintaining the appearance of the device and reducing the amount of dust entering the mainboard module in the shell. It is also possible to further set connection interfaces of various specifications on the interface module, which can adapt to the different interface requirements of different screen projection devices in various situations, with a simple shape and structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is an exploded schematic diagram of the wireless screen projection device of the present application;

[0021] Figure 2 A schematic diagram of a three-dimensional structure of the wireless screen projection device in this application;

[0022] Figure 3 This is another schematic diagram of the three-dimensional structure of the wireless screen projection device in this application;

[0023] Figure 4 This is a schematic diagram of the heat dissipation holes of the wireless projection device in this application;

[0024] Figure 5 This is a side view structural diagram of the wireless screen projection device in this application;

[0025] Figure 6 This is a schematic diagram of the top view of the wireless screen projection device in this application;

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of the wireless screen projection device on the AA line in this application.

[0027] The figure numbers are as follows: 1-shell; 11-bottom surface; 111-heat dissipation hole; 112-installation groove; 12-top surface; 121-lens; 122-groove; 13-bottom plate; 131-support foot; 132-adhesive layer; 2-main board module; 21-indicator light module; 211-indicator light; 212-light guide; 3-dustproof net; 4-signal transmission line; 41-interface module; 411-first connection port module; 412-second connection port module; 413-connection mother port; 5-fixing part; 6-connection hole; 7-connection line. DETAILED DESCRIPTION

[0028] The concept, specific structure and technical effects of the present application will be clearly and completely described below in combination with the embodiments and drawings to fully understand the purpose, features and effects of the present application.

[0029] Hereinafter, various embodiments of the present application will be described more fully. The present application may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present application to the specific embodiments disclosed herein, but the present application should be understood to cover all adjustments, equivalents and / or alternatives within the spirit and scope of the various embodiments of the present application.

[0030] Hereinafter, the term "include" or "may include" used in various embodiments of the present application indicates the presence of a disclosed function, operation, or element, and does not limit the addition of one or more functions, operations, or elements. In addition, as used in various embodiments of the present application, the terms "include", "have", and their cognates are intended only to indicate a specific feature, number, step, operation, element, component, or combination of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components, or a combination of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components, or a combination of the foregoing.

[0031] In various embodiments of the present application, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the words listed at the same time. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0032] The expressions (such as "first", "second", etc.) used in the various embodiments of the present application may modify the various constituent elements in the various embodiments, but may not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present application, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0033] It should be noted that in this application, unless otherwise clearly specified and defined, the terms "installation", "connection", "fixation" and the like 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In the present application, a person of ordinary skill in the art should understand that the terms indicating orientation or positional relationship herein are based on the orientation or positional relationship shown in the accompanying 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 specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] The terms used in the various embodiments of the application are only used to describe the purpose of specific embodiments and are not intended to limit the various embodiments of the application. As used herein, the singular form is intended to also include the plural form, unless the context clearly indicates otherwise. Unless otherwise limited, all terms used here (including technical terms and scientific terms) have the same meaning as the meanings commonly understood by ordinary technicians in the field of the various embodiments of the application. The terms (such as the terms defined in the dictionary generally used) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, unless clearly defined in the various embodiments of the application.

[0036] Example

[0037] This embodiment provides a wireless screen projection device, which hides the heat dissipation holes on the bottom surface by setting a bottom plate, thereby improving the appearance of the device while maintaining the heat dissipation performance. The specific solution is as follows:

[0038] A wireless screen projection device includes a housing 1, a bottom plate 13, a mainboard module 2, a signal transmission line 4 and an interface module 41. The mainboard module 2 is located in the housing 1, one end of the signal transmission line 4 is connected to the mainboard module 2, and the other end is connected to the interface module 41; the interface module 41 includes a connection interface of at least one specification.

[0039] The bottom surface 11 of the housing 1 is provided with a plurality of heat dissipation holes 111. The bottom surface 11 of the housing 1 is connected to the bottom plate 13. There is a gap between the bottom plate 13 and the bottom surface 11. The projection of the bottom plate 13 on the bottom surface 11 covers the area where the heat dissipation holes 111 are located, so as to hide the heat dissipation holes 111. In practical applications, the plurality of heat dissipation holes 111 can be evenly arranged along the inner circle of the bottom surface 11 close to the edge, such as Figure 4 By using the bottom plate 13 to hide the heat dissipation holes 111, the appearance of the device can be maintained, and the bottom plate 13 can also help prevent external dust from entering the heat dissipation holes 111. It should be noted that the projection of the bottom plate 13 on the bottom surface 11 covers the heat dissipation holes 111, but does not completely block or close the heat dissipation holes 111, and the heat dissipation function of the heat dissipation holes 111 can be maintained.

[0040] In a specific embodiment, the dustproof net 3 is further included. The dustproof net 3 is arranged on one side of the housing 1 close to the bottom surface 11 ; the projection of the dustproof net 3 on the bottom surface 11 covers the heat dissipation holes 111 .

[0041] In a specific embodiment, it also includes: a fixing member 5. The mainboard module 2, the dustproof net 3, the bottom surface 11 of the shell 1 and the bottom plate 13 are all provided with connection holes 6 corresponding to the fixing member 5. The fixing member 5 passes through the connection holes 6 of the bottom plate 13, the bottom surface 11 of the shell 1, the dustproof net 3 and the mainboard module 2 in turn, and is connected to the inner side of the top surface 12 of the shell 1 to fix the mainboard module 2 and the dustproof net 3 in the shell 1, and realize the connection between the bottom surface 11 of the shell 1 and the bottom plate 13. The dustproof net 3 can be fixed between the heat dissipation hole 111 and the mainboard module 2, so that the dustproof net 3 can prevent external dust from entering the mainboard module 2 through the heat dissipation hole 111. The specific structure of each module is as follows: Figure 1 The exploded diagram of the device is shown in Figure 1. Figure 2-5 In actual use, the bottom plate 13 can be flexibly disassembled from the bottom surface 11 of the housing 1, so that the user can clean the device more easily.

[0042] In a specific embodiment, the bottom plate 13 also includes one or more supporting feet 131, and the bottom surface 11 of the shell 1 is provided with a mounting groove 112 that matches the supporting feet 131, wherein the depth of the mounting groove 112 is less than the height of the supporting feet 131, so that a gap is generated between the bottom plate 13 and the bottom surface 11 of the shell 1 while they are fixedly connected. In practical applications, the connecting hole 6 on the bottom plate 13 for the fixing member 5 to pass through and the supporting feet 131 can be integrated, that is, the supporting feet 131 are hollow in design, and the hollow part thereof serves as the connecting hole 6 for the fixing member 5 to pass through, and the mounting groove 112 is wider than the connecting hole 6. If the device is Figure 6 Schematic diagram of the cross-sectional structure on the AA line Figure 7 as shown in .

[0043] In a specific embodiment, the interface module 41 includes a first connection port module 411 and a second connection port module 412. The first connection port module 411 and the second connection port module 412 are provided with connection interfaces of the same or different specifications.

[0044] Among them, the data connection signal transmission line 4 is on the end of the first connection port module 411 away from its own connection interface, and the end of the second connection port module 412 away from its own connection interface includes a connection female port 413 that matches at least one connection interface of the first connection port module 411, and the connection female port 413 is used to be detachably connected to the connection interface of the first connection port module 411 to realize data connection between the second connection port module 412 and the first connection port module 411.

[0045] During use, when the user chooses to use the connection interface on the first connection port module 411, the second connection port module 412 is disassembled from the first connection port module 411, and the first connection port module 411 can be used to connect to an external device; when the user chooses to use the connection interface on the second connection port module 412, the first connection port module 411 and the second connection port module 412 are connected, so that the second connection port module 412 is data-connected with the first connection port module 411. At this time, the user can use the connection interface on the second connection port module 412 to connect to an external device.

[0046] In a specific embodiment, it also includes a connection line 7, one end of which is connected to the second connection port module 412; the other end of the connection line 7 is connected to the first connection port module 411 or the signal transmission line 4. Figure 1 and Figure 3 As shown, by setting the connection line 7, when the user does not use the second connection port module 412, there is no data connection between the second connection port module 412 and the first connection port module 411, but the second connection port module 412 is still physically connected to the first connection port module 411 or the signal transmission line 4, so that the second connection port module 412 will not be lost when not in use. It is convenient for users to carry it with them and use it immediately.

[0047] In a specific embodiment, the connection interface includes one or more of a USB-A interface, a USB-B interface, a USB-C interface, a Lightning interface, and a micro USB interface. In an actual use process, the first connection port module 411 is provided with a USB-C interface, and the second connection port module 412 is provided with a USB-A interface, which can adapt to the connection requirements of most devices.

[0048] In a specific embodiment, an indicator light module 21 is provided on the top surface 12 of the housing 1. In practical applications, the working state of the device can be indicated by the flashing of the indicator light 211 or the color of the indicator light 211. The indicator light 211 can be always on when the device is in the working state, and flash when it is in the connected state. The user can set the mode of the indicator light 211 according to actual conditions. In a specific embodiment, the indicator light 211 can be an LCD light. It should be noted that as long as the functions of emitting light and indicating can be achieved, lamps of other materials and types can also be used.

[0049] In a specific embodiment, the side surface other than the top surface 12 and the bottom surface 11 of the housing 1 may also be provided with an indicator light module 21. A display screen or a touch screen may also be provided on the surface of the housing 1 to display the working status of the projection device in real time.

[0050] In a specific embodiment, the indicator light module 21 includes an indicator light 211 and a light guide 212. The indicator light 211 is electrically connected to the mainboard module 2. The light guide 212 is exposed on the top surface 12. The indicator light 211 and the light guide 212 are correspondingly arranged so that the light of the indicator light 211 is emitted through the light guide 212. In practical applications, there may be one or more indicator lights 211. The light guide 212 may be a light-guiding silicone. The light-guiding silicone has a uniform effect on the light of the indicator light 211, and can make the light emitted by the indicator light 211 more uniform and soft. It should be noted that as long as the light-guiding effect of the light guide 212 can be achieved, other materials can be used as the light guide 212.

[0051] In a specific embodiment, a lens 121 is further included. The top surface 12 of the housing 1 is provided with a groove 122 that matches the lens 121. The lens 121 is located in the groove 122. The lens 121 includes a transparent area, and the transparent area covers the area where the light guide 212 is located. In practical applications, the transparent area of ​​the lens 121 may cover the entire lens 121, or the transparent area may only cover the area where the light guide 212 is located. The lens 121 can further prevent external dust from falling into the indicator light module 21.

[0052] In a specific embodiment, the bottom plate 13 is covered with an adhesive layer 132. It should be noted that in actual applications, as long as the shell 1 can be fixedly attached to the external object, and can be repeatedly used and removed without leaving traces, the adhesive layer 132 can be made of materials such as gel, nano glue or magnetic absorption layer. In an actual application process, the adhesive layer 132 is a gel layer. Since the gel layer has a certain thickness, the user can not only stick the device on a flat surface through the gel layer, but also stick the device on a micro-arc surface. This further expands the use scenario range of the projection device and is suitable for a wider range of mobile office scenarios, such as in-vehicle use and outdoor use.

[0053] In a specific embodiment, the housing 1 includes a front housing and a rear housing, the side where the top surface 12 of the housing 1 is located is the front housing, and the side where the bottom surface 11 of the housing 1 is located is the rear housing. The front housing and the rear housing are engaged with each other to form the housing 1, so that the dust screen 3 and the mainboard module 2 can be installed in the housing 1.

[0054] This embodiment provides a wireless screen projection device, which provides a plurality of heat dissipation holes on the bottom surface of the housing and provides a bottom plate connected to the bottom surface to hide the heat dissipation holes, thereby ensuring the heat dissipation efficiency of the screen projection device while realizing the design of hidden heat dissipation holes and maintaining the appearance of the device. It is also possible to further provide connection interfaces of various specifications in the interface module, which can adapt to different interface requirements of different screen projection devices in various situations, with a simple structure, concise shape and diverse functions.

[0055] The above is a specific description of the preferred implementation of the present application, but the invention of the present application is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A wireless screen projection device, characterized in that: It includes a housing, a base plate, a mainboard module, a signal transmission line and an interface module; The mainboard module is located in the housing, one end of the signal transmission line is connected to the mainboard module, and the other end is connected to the interface module; the interface module includes a connection interface of at least one specification; A plurality of heat dissipation holes are arranged on the bottom surface of the shell; the bottom surface of the shell is connected to the base plate, and there is a gap between the base plate and the bottom surface; the projection of the base plate on the bottom surface covers the area where the heat dissipation holes are located to hide the heat dissipation holes.

2. A wireless screen projection device according to claim 1, characterized in that: Also includes: A dustproof net; the dustproof net is arranged on one side of the shell close to the bottom surface; the projection of the dustproof net on the bottom surface covers the heat dissipation holes.

3. A wireless screen projection device according to claim 2, characterized in that: Also includes: A fixing member, wherein the mainboard module, the dustproof net, the bottom surface of the shell and the bottom plate are all provided with connection holes corresponding to the fixing member; The fixing member passes through the connecting holes of the base plate, the bottom surface of the shell, the dustproof net and the mainboard module in sequence and is connected to the inner side of the top surface of the shell to fix the mainboard module and the dustproof net in the shell and realize the connection between the bottom surface of the shell and the base plate.

4. The wireless screen projection device according to claim 1, characterized in that: The interface module includes a first connection port module and a second connection port module; the first connection port module and the second connection port module are provided with connection interfaces of the same or different specifications; One end of the first connection port module away from its own connection interface is data connected to the signal transmission line; The end of the second connection port module away from its own connection interface includes a connection female port that matches at least one connection interface of the first connection port module, and the connection female port is used to be detachably connected to the connection interface of the first connection port module to achieve data connection between the second connection port module and the first connection port module.

5. A wireless screen projection device according to claim 4, characterized in that: It also includes a connecting line, one end of which is connected to the second connecting port module; the other end of which is connected to the first connecting port module or the signal transmission line.

6. The wireless screen projection device according to claim 1, characterized in that: The connection interface includes one or more of a USB-A interface, a USB-B interface, a USB-C interface, a Lightning interface, and a micro USB interface.

7. The wireless screen projection device according to claim 1, characterized in that: An indicator light module is arranged on the top surface of the shell.

8. A wireless screen projection device according to claim 7, characterized in that: The indicator light module includes an indicator light and a light guide, the indicator light is electrically connected to the mainboard module, the light guide is exposed on the top surface, and the indicator light and the light guide are correspondingly arranged so that the light of the indicator light is emitted through the light guide.

9. The wireless screen projection device according to claim 8, characterized in that: It also includes a lens. The top surface of the shell is provided with a groove matching the lens. The lens is located in the groove. The lens includes a transparent area, and the transparent area covers the area where the light guide is located.

10. The wireless screen projection device according to claim 1, characterized in that: The bottom plate is covered with an adhesive layer.

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