Projection curtain device

Abstract

The utility model discloses a projection curtain device, which comprises a curtain, a mounting piece and a power supply cable, the mounting piece is fixed at one side edge of the curtain, the mounting piece is provided with a first power supply module used for being connected with an external sensor accessory to realize power supply, the first power supply module is electrically connected with the power supply cable, and the power supply cable is electrically connected with the mounting piece. And the power supply cable is arranged on the curtain and / or the mounting piece. The projection curtain device provided by the utility model can conveniently supply power to external sensor accessories.

Description

Technical Field

[0001] The utility model relates to the technical field of projection screens, in particular to a projection screen device. Background Art

[0002] Existing projection screens usually only have the function of displaying projected images. Although conventional interactive sensor devices can be fixed on the TV frame and are equipped with modules such as cameras and depth sensors to identify user posture and other information for TV interaction, for large-screen screens, the power cord of traditional sensor devices is far from long enough, which affects the normal use of users. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a projection screen device, which can conveniently supply power to external sensor accessories.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a projection screen device, comprising a screen, a mounting member and a power supply cable, wherein the mounting member is fixed to one side of the screen, the mounting member is provided with a first power supply module for connecting to an external sensor accessory to realize power supply, the first power supply module is electrically connected to the power supply cable, and the power supply cable is arranged on the screen and / or the mounting member.

[0006] Preferably, the mounting member includes a first mounting member, the first mounting member extends along the length direction of the curtain, the first mounting member is fixed to the top side edge of the curtain, and the first power supply module is arranged on the first mounting member.

[0007] Preferably, the first mounting member includes an upper frame, the bottom of the upper frame is provided with an upper clamping groove, the top edge of the curtain is clamped into the upper clamping groove, and the bottom of the upper clamping groove is provided with a first wiring groove for accommodating the power supply cable.

[0008] Preferably, the first power supply module is arranged on the outer surface of the upper frame; or, a mounting groove is opened at the top of the upper frame, the first power supply module is arranged in the mounting groove, and a magnetic part is arranged inside the mounting groove.

[0009] Preferably, the mounting member further comprises a side frame, the side frame is provided with a side clamping groove, the side edge of the curtain is clamped into the side clamping groove, and the bottom of the side clamping groove is provided with a second wiring groove for accommodating the power supply cable;

[0010] The first wiring trough is connected to the second wiring trough, and the power supply cable extends from the first wiring trough to the second wiring trough; or, the ends of the first wiring trough and the second wiring trough are both provided with electrical connectors connected to the power supply cable, and the power supply cables in the first wiring trough and the second wiring trough are electrically connected through the electrical connector.

[0011] Preferably, the mounting member further comprises a bottom frame, the bottom frame is provided with a lower clamping groove, the bottom side edge of the curtain is clamped into the lower clamping groove, and the bottom of the lower clamping groove is provided with a third wiring groove for accommodating the power supply cable;

[0012] The third wiring trough is connected to the second wiring trough, and the power supply cable extends from the second wiring trough to the third wiring trough; or, the ends of the second wiring trough and the third wiring trough are both provided with electrical connectors connected to the power supply cable, and the power supply cables in the second wiring trough and the third wiring trough are electrically connected through the electrical connector.

[0013] Preferably, a wire hole is provided on the mounting member, and the power supply cable is led out from the wire hole; or, a second power supply module is provided on the outer surface of the mounting member, the second power supply module is electrically connected to the power supply cable, and the second power supply module is used to connect to an external power cord to realize current input.

[0014] Preferably, the projection screen device also includes a storage shell, a driving mechanism, and a control module. A storage drum is provided in the storage shell, the bottom edge of the screen is connected to the surface of the storage drum, and the screen can be rolled up and stored on the surface of the storage drum. The driving mechanism is provided on the storage shell and connected to the first mounting member for adjusting the first mounting member, thereby controlling the lifting and lowering of the screen relative to the storage shell, and the power supply cable is connected to the control module; the control module is provided in the storage shell and is electrically connected to the driving mechanism and the power supply cable.

[0015] Preferably, the mounting member comprises a storage shell, the curtain can be rolled up and stored in the storage shell, and the first power supply module is arranged on the outer surface of the storage shell.

[0016] Preferably, the projection screen device further comprises a built-in power supply, the built-in power supply is electrically connected to the first power supply module via the power supply cable, and the built-in power supply is arranged on the mounting component.

[0017] Compared with the prior art, the beneficial effect of the present invention lies in that: the projection screen device disclosed by the present invention has a mounting member fixed on one side of the screen, and the mounting member is provided with a first power supply module capable of powering an external sensor accessory, thereby being able to conveniently power the external sensor accessory. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of an application scenario of the projection screen device in a preferred embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the screen and each frame in the projection screen device;

[0020] Figure 3 It is a partial structural schematic diagram of the bottom of the upper frame in the projection screen device;

[0021] Figure 4 It is a schematic diagram of the local structure of the top of the upper frame in the projection screen device;

[0022] Figure 5 It is a schematic diagram of the structure of the external sensor accessories;

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the upper frame in the projection screen device;

[0024] Figure 7 It is a schematic diagram of a first connection method of an upper frame and a side frame in a projection screen device;

[0025] Figure 8 It is a schematic diagram of a second connection method of the upper frame and the side frame in the projection screen device;

[0026] Fig. 9 It is a front view schematic diagram of the projection screen device;

[0027] Fig.10 It is a schematic diagram of the back of the projection screen device;

[0028] Fig.11 It is a structural schematic diagram of a projection screen device including a screen of relatively soft material and a flexible edging arrangement;

[0029] Fig.12 It is a structural schematic diagram of a projection screen device including a storage shell and an electric screen;

[0030] Fig.13 It is a structural schematic diagram of a projection screen device in which a first power supply module is arranged in a storage shell at the bottom end of the screen;

[0031] Fig.14 It is a structural schematic diagram of a projection screen device in which a first power supply module is arranged in a storage shell at the top of the screen;

[0032] Fig.15 It is a schematic diagram of the projection screen device in the preferred embodiment of the utility model establishing a data communication network in an application scenario. DETAILED DESCRIPTION

[0033] The following is a detailed description of the implementation of the utility model. It should be emphasized that the following description is only exemplary and is not intended to limit the scope and application of the utility model.

[0034] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for both fixing and circuit / signal communication.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the utility model 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 cannot be understood as a limitation on the utility model.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0037] like Figure 1 As shown, the preferred embodiment of the utility model discloses a projection screen device 10, including a screen 11, a mounting member 12 and a power supply cable 13, wherein the mounting member 12 is fixed to one side of the screen, and combined with Figure 4 The mounting member 12 is provided with a first power supply module 124 for connecting to the external sensor accessory 20 to realize power supply. The first power supply module 124 is connected to the power supply cable 13, and the power supply cable 13 is arranged on the curtain 11 and / or the mounting member 12.

[0038] The mounting member 12 includes a first mounting member, which extends along the length direction of the curtain 11 and is fixed to the top edge of the curtain 11. The first power supply module 124 is disposed on the first mounting member. Figure 2 and Figure 3The first mounting member includes an upper frame 121, the bottom of the upper frame 121 is provided with an upper clamping groove 1211, the top edge of the curtain 11 is clamped into the upper clamping groove 1211, and the bottom of the upper clamping groove 1211 is provided with a first wiring groove 1212 for accommodating the power supply cable 13. Figure 4 A mounting groove 1213 is formed at the top of the upper frame 121 , the first power supply module 124 is disposed in the mounting groove 1213 , and a magnetic member 1214 is disposed inside the mounting groove 1213 .

[0039] In a specific embodiment, the mounting groove 1213 is opened in the middle of the top surface of the upper frame 121, the first power supply module 124 is a conductive contact, and the magnetic member 1214 is a magnet, that is, the bottom of the mounting groove 1213 is provided with a conductive contact and a magnet. Figure 5 , the external sensor accessory 20 is provided with modules such as a camera 21, a UWB module 22, and a depth sensor 23, and the bottom of the external sensor accessory 20 is provided with an ejector pin 24 corresponding to the first power supply module 124 and a magnet 25 corresponding to the magnetic member 1214. By respectively providing magnets at the bottom of the mounting groove 1213 and the bottom of the external sensor accessory 20, when the user places the external sensor accessory 20 close to the mounting groove 1213 of the upper frame 121, the magnets of the two attract each other and can quickly complete the installation and fixation, and the shape of the mounting groove 1213 is adapted to the shape of the bottom plug-in structure of the external sensor accessory 20 to automatically complete the guided plug-in, and at the same time, the ejector pin 24 contacts the conductive contact at the bottom of the mounting groove 1213, thereby realizing the power supply of the external sensor accessory 20 through the projection screen device 10. In other specific embodiments, the first power supply module 124 can be an ejector pin, that is, an ejector pin is provided at the bottom of the mounting groove 1213, and a conductive contact is provided at the bottom of the external sensor accessory 20. Alternatively, the first power supply module 124 can also be a wireless charging module, that is, a wireless charging module is arranged at the bottom of the installation groove 1213, and a wireless charging module is also correspondingly arranged at the bottom of the external sensor accessory 20, thereby realizing wireless charging of the external sensor accessory 20.

[0040] Figure 6The figure shows a cross-sectional schematic diagram of the position of the mounting groove 1213 provided for the upper frame 121 in an embodiment, wherein the mounting groove 1213 is used to place the external sensor accessory 20, and the upper clamping groove 1211 provided at the bottom of the upper frame 121 is used to clamp the top edge of the curtain 11. When the upper frame 121 is installed in the curtain 11, it can be firmly fixed to the curtain 11 by fasteners, and the fasteners can be locking screws, for example. In one embodiment, the curtain 11 is a hard curtain, and the curtain 11 is provided with a threaded hole on the edge of the back side, and the upper frame 121 is provided with a through hole corresponding to the position of the threaded hole. After the upper frame 121 is installed on the curtain 11, the screw passes through the through hole and is locked into the threaded hole on the curtain 11, so that the upper frame 121 is firmly installed on the curtain 11.

[0041] On the other hand, the first wiring groove 1212 opened at the bottom of the upper clamping groove 1211 is used to clamp or bond the power supply cable 13. For example, the first wiring groove 1212 can be a dovetail groove. The first power supply module 124 provided in the installation groove 1213 is electrically connected to the power supply cable 13, so that the power supply cable 13 is hidden in the upper frame 121, preventing the power supply cable 13 from being messily located outside the curtain 11.

[0042] Combination Figure 2 and Figure 7In one embodiment, the mounting member 12 further includes a side frame 122 and a bottom frame 123. The side frame 122 is provided with a side snap-in groove 1221, into which the side edge of the curtain 11 is snapped, and a second wiring groove 1222 for accommodating a power supply cable is provided at the bottom of the side snap-in groove 1221; the bottom frame 123 is provided with a lower snap-in groove (not shown in the figure), into which the bottom side edge of the curtain 11 is snapped, and a third wiring groove (not shown in the figure) for accommodating a power supply cable is provided at the bottom of the lower snap-in groove. The first wiring groove 1212 is connected to the second wiring groove 1222, and the third wiring groove is connected to the second wiring groove 1222. The power supply cable 13 extends from the first wiring groove 1212 to the second wiring groove 1222, and then from the second wiring groove 1222 to the third wiring groove. By providing a snap-in groove and a wiring groove in each frame, when adjacent frames are assembled on the curtain 11, the wiring grooves of adjacent frames are connected, so that the power supply cable 13 can be hidden and transitioned to different frames. Further, the mounting member 12 is provided with a lead-out portion; wherein the lead-out portion is a wire hole opened on the side frame 122 or the bottom frame 123, and the power supply cable 13 is led out from the wire hole; after being led out from the lead-out portion, the end of the power supply cable 13 is connected to an adapter plug or a USB to connect to a socket. If the wire hole is opened on the bottom frame 123, the power supply cable 13 extends from the first wiring groove 1212 to the second wiring groove 1222, and then extends from the second wiring groove 1222 to the third wiring groove, and then leads out from the wire hole on the bottom frame 123 to an external power source such as a socket, wherein the wire hole can be opened on the back side of the bottom frame 123, and can also be opened on the bottom side of the bottom frame 123; and if the wire hole is opened on the side frame 122, then there is no need to open a third wiring groove on the bottom frame 123, the power supply cable 13 extends from the first wiring groove 1212 to the second wiring groove 1222, and then leads out from the wire hole on the side frame 122 to an external power source, wherein the wire hole can be opened on the back side of the side frame 122, and can also be opened at the side of the side frame 122.

[0043] In some other embodiments, the ends of the first wiring trough 1212 and the second wiring trough 1222 are both provided with an electrical connector connected to the power supply cable 13, and the first wiring trough 1212 and the power supply cable 13 in the second wiring trough 1222 are electrically connected through the electrical connector; similarly, the ends of the second wiring trough 1222 and the third wiring trough may also be provided with an electrical connector connected to the power supply cable 13, and the power supply cable 13 in the second wiring trough 1222 and the third wiring trough are electrically connected through the electrical connector. Specifically, the electrical connector may adopt a matching structure of a pin and a conductive contact, such as Figure 8As shown, a pin structure 1215 electrically connected to the power supply cable 13 in the first wiring groove 1212 is provided at the end of the first wiring groove 1212, and a conductive contact 1223 electrically connected to the power supply cable 13 in the second wiring groove 1222 is provided at the corresponding end of the second wiring groove 1222. Similarly, a pin structure and a conductive contact are respectively provided at the corresponding ends of the second wiring groove 1222 and the third wiring groove, wherein the structures of the pin structure 1215 and the conductive contact 1223 can be changed according to the situation. For example, a conductive contact connected to the power supply cable 13 is provided at the end of the first wiring groove 1212, and a pin structure connected to the power supply cable 13 is provided at the corresponding end of the second wiring groove 1222. In these embodiments, each section of the power supply cable 13 extends only in the wiring groove in the same frame, wherein the power supply cable 13 in the upper frame 121 is connected between the conductive contact in the installation groove 1213 and the ejector structure 1215 provided at the end of the first wiring groove 1212, and the power supply cable 13 in the side frame 122 is connected between the conductive contact 1223 at the upper end and the conductive contact or ejector structure at the bottom end. The electrical connection between different frames is achieved through the cooperation of these ejector structures and conductive contacts. In this way, it is only necessary to install each frame on the curtain 11 separately, and the ejector structures and conductive contacts between each frame can directly abut against each other to achieve conduction, which makes assembly more convenient and can prevent the power supply cable 13 from being excessively bent at the corners.

[0044] In some other embodiments, corresponding wiring grooves may not be set at the bottom of the snap-in grooves in each frame, but multiple snap-in wire structures are arranged at intervals on the back sides of the upper frame 121, the side frame 122 (left frame or right frame), and the bottom frame 123. A through hole is opened on the back of the upper frame 121, and one end of the power supply cable 13 is electrically connected to the first power supply module 124 and then led out from the inside of the upper frame 121 through the through hole, and then snapped into the snap-in wire structures of each frame along the wiring sequence of the upper frame 121, the side frame 122 (left frame or right frame), and the bottom frame 123, so that the power supply cable 13 is pre-fixed in these snap-in wire structures to achieve fixation. Correspondingly, there is no need to set a lead-out portion at this time.

[0045] In some other embodiments, the upper frame 121 may not need to have a mounting groove, and the first power supply module 124 may be directly disposed on the outer surface of the upper frame 121. In addition to being disposed on the top of the upper frame 121, the first power supply module 124 may also be disposed on the front or back surface of the upper frame 121. Fig. 9 As shown, the first power supply module 124 is arranged on the front surface of the upper frame 121. At this time, the external sensor accessory 20 can be clamped on the upper frame 121 by a clip structure, and after clamping, the external sensor accessory 20 can be electrically connected to the first power supply module 124.

[0046] In other embodiments, Fig.10As shown, the lead-out portion is a second power supply module 125 disposed on the outer surface of the mounting member, such as the outer surface of the side frame 122 or the bottom frame 123. The second power supply module 125 is electrically connected to the power supply cable 13. The second power supply module 125 is used to connect to an external power supply line to realize current input; wherein the second power supply module 125 can be a conductive contact or a pin structure, that is, the lead-out portion does not need to be opened at this time, and only needs to be configured with a detachable external power supply line to contact with the second power supply module 125 and connect to the socket, wherein the external power supply line can be fixed to the lead-out portion by means of clamping, magnetic attraction, etc., so as to be electrically connected to the second power supply module 125. Alternatively, the second power supply module 125 can also be set as a USB interface or a Type-C interface, and the external sensor accessory 20 can be powered by an external power bank. Preferably, the lead-out portion is arranged on the back side or bottom side of the projection screen device 10.

[0047] In some other embodiments, the projection screen device 10 also includes a built-in power supply, which can be set at the frame of the screen 11. The power supply cable 13 extending along the frame is connected to the built-in power supply to power the external sensor accessory 20. The built-in power supply is electrically connected to a power supply socket on the frame. The external power cord can be plugged into the power supply socket and the socket to power the built-in power supply. Then, the projection screen device 10 can be directly moved to any position, and the external sensor accessory 20 can be powered by the built-in power supply.

[0048] In a specific embodiment, the screen 11 is used to reflect the projection light. The screen 11 is provided with frames on all sides, namely, an upper frame 121, a side frame 122 (including a left frame and a right frame), and a bottom frame 123. Each frame is generally dark in color and is detachably snapped onto the edge of the screen 11 to protect the screen 11 and facilitate edge recognition by the camera of the projector 30 to determine a reasonable projection area.

[0049] For the screen 11 made of a harder material, it has a three-dimensional structure of a certain size, and it is easier to make a mounting groove; while for the screen 11 made of a softer material, it is impossible to make a three-dimensional fixed wire structure because the whole is a flexible sheet structure; Fig.11As shown, at this time, a dark-colored flexible edging 111 can be attached to the edge of the softer material curtain 11, and the first power supply module can be further set on a carrier plate, and the carrier plate is bonded or locked on both sides to the flexible edging 111, and then a power supply cable 13 is buried at the bottom of the flexible edging 111 on the back side to connect with the first power supply module, and the power supply cable 13 extends along the flexible edging 111 to the bottom or lower side of the curtain 11 and is led out. Specifically, the flexible edging 111 can be bonded to the back edge of the curtain 11 or connected by Velcro, and the power supply cable 13 is set between the curtain 11 and the flexible edging 111, that is, the flexible edging 111 can fix the power supply cable 13 while hiding it, thereby improving the integrity and appearance of the projection screen device.

[0050] like Fig.12 As shown, another preferred embodiment of the present invention discloses a projection screen device 10', including a screen 11, a mounting member 12, a power supply cable 13, a storage shell 14, a driving mechanism (not shown) and a control module 15. The mounting member 12 is fixed to one side of the screen 11. The mounting member 12 is provided with a first power supply module 124 for connecting with an external sensor accessory to realize power supply. The first power supply module 124 is electrically connected to the power supply cable 13, and the power supply cable 13 is arranged on the screen 11 and / or the mounting member 12. The mounting member 12 includes a first mounting member, which extends along the length direction of the screen 11, is fixed to the top side edge of the screen 11, and the first power supply module 124 is arranged on the first mounting member. A storage drum 141 is provided in the storage shell 14, the bottom edge of the curtain 11 is connected to the surface of the storage drum 141, and the curtain 11 can be rolled up and stored on the surface of the storage drum 141. The driving mechanism is provided on the storage shell 14 and connected to the first mounting member to adjust the first mounting member, thereby controlling the curtain 11 to rise and fall relative to the storage shell, and the power supply cable 13 is connected to the control module 15; the control module 15 is provided in the storage shell 14 and is electrically connected to the driving mechanism and the power supply cable 13.

[0051] In this preferred embodiment, the screen 11 is an electric screen, the main body of the screen 11 is flexible and can be extended or retracted from the storage shell 14; there are two or more foldable brackets on the back of the screen 11, and the brackets are connected to the rigid frame at the top of the screen 11 and the storage shell 14. As the driving structure in the storage shell 14 drives the brackets to move, the brackets gradually prop up the screen 11, so that the screen 11 extends out of the storage shell 14. In this embodiment, the rigid frame at the top is used as the mounting member 12, and the first power supply module 124 is arranged on the rigid frame at the top of the screen 11, and the power supply cable 13 is attached to the back of the flexible screen 11, and extends downward to the storage drum 141 and extends into the storage drum 141 through the wire through hole 1411 on the storage drum 141, and then leads out from the opening at the end of the storage drum 141, so that the power supply cable 13 is electrically connected to the circuit of the control module 15, and then connected to the external power line through the circuit of the control module 15. At this time, the circuit of the control module 15 can be used to control the power supply of the external sensor accessories and control the lifting and lowering drive of the curtain 11. The first power supply module 124 can be a conductive contact, a pin structure or a wireless charging module.

[0052] In some other embodiments, the storage shell 14 can also be used as the mounting member 12, for example Fig.13 The storage housing 14 shown in the figure is arranged at the bottom end of the curtain 11 or as Fig.14 The storage shell 14 shown disposed on the top of the screen 11 can be used as the mounting member 12, that is, the first power supply module 124 is disposed on the storage shell 14, and the power supply cable 13 is directly hidden in the storage shell 14. At this time, when the screen 11 is rolled up and stored in the storage shell 14, the power supply cable 13 does not need to be raised or lowered with the screen 11, and the wiring method is simpler. Alternatively, in other embodiments, the external sensor accessories can be directly integrated on the storage shell 14 or placed in the storage shell 14 without adopting a detachable design.

[0053] In some other embodiments, a built-in power supply can be further provided in the storage shell 14, and the power supply cable 13 is connected to the built-in power supply to power the external sensor accessory 20. The built-in power supply is electrically connected to the power supply socket of the storage shell 14, and the external power supply cord can be plugged into the power supply socket and the socket to power the built-in power supply. Then, the projection screen device can be directly moved to any position, and the external sensor accessory 20 can be powered by the built-in power supply.

[0054] The projection screen device provided in each preferred embodiment of the utility model can be applied not only to metal frame screens, but also to fixed-size screens such as electric hanging screens, Fresnel hard screens, and ground-lift screens. By pre-buried wires, it is easy and convenient to power external sensor accessories, and the external sensor accessories do not need to have their own power cords; the external sensor accessories may include cameras, TOF depth sensors, UWB modules, radars, etc.

[0055] The following is a further detailed description of the application of the projection screen device disclosed in the utility model in actual scenarios.

[0056] like Fig.15 As shown, in this application scenario, a projection screen device 10, an external sensor accessory 20, a projection device 30 and a remote control 40 are included, wherein the material of the screen 11 of the projection screen device 10 is not limited, and the size of the screen 11 is 100 inches for example but is not limited to 100 inches, and a fixed wire structure is provided on the screen 11 for pre-burying a power supply cable 13, and the power supply cable 13 is led out from the projection screen device 10 and used to connect to the socket; the external sensor accessory 20 is a sensor device integrating UWB, radar, camera, etc.; the projection device 30 is a projector device equipped with an Android system; the remote control 40 is a Bluetooth remote control device based on Bluetooth, equipped with a UWB module, a six-axis sensor, and a touch panel.

[0057] The external sensor accessory 20 is mounted on the projection screen device 10, and the external sensor accessory 20 is powered through the power supply cable 13, the projection device 30 is turned on, the projection image is projected onto the screen 11 of the projection screen device 10, and the image adjustment is completed by manual trapezoidal or one-touch screen operation; the remote control 40 is paired with the projection device 30 for Bluetooth communication (BLE, Bluetooth Low Energy), and a data communication network is established after completion. The radar module on the external sensor accessory 20 can realize the human body detection function. When the human body approaches and enters the range of the screen, the projection device 30 can be notified through the data communication network to turn off or reduce the brightness of the light source to achieve the purpose of protecting human eyes. The camera module on the projection device 30 can recognize information such as human face and bones through the image processing chip with its own computing power, and can cooperate with the projection device 30 through the data communication network to realize personalized content recommendation, playing somatosensory games and other scene applications. In other application scenarios, as long as it is a sensor that can be linked with the projection device 30 through the above-mentioned data communication network, it can be used as the external sensor accessory 20 in actual scenes.

[0058] The background section of the utility model may contain background information about the problem or environment of the utility model, rather than describing the prior art by others. Therefore, the content contained in the background technology section is not an admission of the applicant to the prior art.

[0059] The above content is a further detailed description of the utility model in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, it can also make several substitutions or modifications to these described embodiments, and these substitutions or modifications should be regarded as belonging to the protection scope of the utility model. In the description of this specification, the description of the reference terms "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily target the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, in the absence of mutual contradiction, the technical personnel in this field can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope defined by the appended claims.

Claims

1. A projection screen device, characterized in that: It includes a curtain, a mounting part and a power supply cable. The mounting part is fixed to one side of the curtain. The mounting part is provided with a first power supply module for connecting to an external sensor accessory to realize power supply. The first power supply module is electrically connected to the power supply cable. The power supply cable is arranged on the curtain and / or the mounting part.

2. The projection screen device according to claim 1, characterized in that: The mounting member includes a first mounting member, the first mounting member extends along the length direction of the curtain, the first mounting member is fixed to the top side edge of the curtain, and the first power supply module is arranged on the first mounting member.

3. The projection screen device according to claim 2, characterized in that: The first mounting member includes an upper frame, the bottom of the upper frame is provided with an upper clamping groove, the top side edge of the curtain is clamped into the upper clamping groove, and the bottom of the upper clamping groove is provided with a first wiring groove for accommodating the power supply cable.

4. The projection screen device according to claim 3, characterized in that: The first power supply module is arranged on the outer surface of the upper frame; or, a mounting groove is opened at the top of the upper frame, the first power supply module is arranged in the mounting groove, and a magnetic part is arranged inside the mounting groove.

5. The projection screen device according to claim 3, characterized in that: The mounting member further comprises a side frame, the side frame is provided with a side clamping groove, the side edge of the curtain is clamped into the side clamping groove, and the bottom of the side clamping groove is provided with a second wiring groove for accommodating the power supply cable; The first wiring trough is connected to the second wiring trough, and the power supply cable extends from the first wiring trough to the second wiring trough; or, the ends of the first wiring trough and the second wiring trough are both provided with electrical connectors connected to the power supply cable, and the power supply cables in the first wiring trough and the second wiring trough are electrically connected through the electrical connector.

6. The projection screen device according to claim 5, characterized in that: The mounting member further comprises a bottom frame, the bottom frame is provided with a lower clamping groove, the bottom side edge of the curtain is clamped into the lower clamping groove, and the bottom of the lower clamping groove is provided with a third wiring groove for accommodating the power supply cable; The third wiring trough is connected to the second wiring trough, and the power supply cable extends from the second wiring trough to the third wiring trough; or, the ends of the second wiring trough and the third wiring trough are both provided with electrical connectors connected to the power supply cable, and the power supply cables in the second wiring trough and the third wiring trough are electrically connected through the electrical connector.

7. The projection screen device according to claim 5 or 6, characterized in that: The mounting member is provided with a wire hole, and the power supply cable is led out from the wire hole; or, a second power supply module is provided on the outer surface of the mounting member, the second power supply module is electrically connected to the power supply cable, and the second power supply module is used to connect to an external power line to realize current input.

8. The projection screen device according to claim 2, characterized in that: It also includes a storage shell, a driving mechanism, and a control module. A storage drum is provided in the storage shell. The bottom edge of the curtain is connected to the surface of the storage drum, and the curtain can be rolled up and stored on the surface of the storage drum. The driving mechanism is provided on the storage shell and connected to the first mounting member for adjusting the first mounting member, thereby controlling the lifting and lowering of the curtain relative to the storage shell. The power supply cable is connected to the control module; the control module is provided in the storage shell and is electrically connected to the driving mechanism and the power supply cable.

9. The projection screen device according to claim 1, characterized in that: The mounting member comprises a storage shell, the curtain can be rolled up and stored in the storage shell, and the first power supply module is arranged on the outer surface of the storage shell.

10. The projection screen device according to claim 1, characterized in that: It also includes a built-in power supply, which is electrically connected to the first power supply module through the power supply cable, and the built-in power supply is arranged on the mounting component.

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