Projection device and projection system

Abstract

The utility model provides a projection device and a projection system, and the projection device comprises a supporting assembly which comprises a supporting frame and a pedestal, a projection host is rotatably arranged on the supporting frame, and the supporting frame is arranged on the pedestal; the circuit assembly comprises a first circuit board, a second circuit board and an electric connecting piece, the first circuit board is arranged in the supporting frame and connected with an internal circuit of the projection host, and the second circuit board is arranged on the base and connected with an internal circuit of the base; the first end of the electric connecting piece is connected to the first circuit board, and the second end of the electric connecting piece is connected to the second circuit board. The supporting frame and the base can be conveniently disassembled and assembled by a user so as to adapt to different scenes.

Description

Technical Field

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

[0002] With the continuous development of society, people's pursuits are also constantly changing, and projection display systems are increasingly used in people's work and life.

[0003] Currently, a projection device, such as a projector, carries a pan-tilt chassis, and a projection host is mounted on the pan-tilt chassis. Generally, the pan-tilt chassis is placed on a desktop or a counter, and this placement scenario is relatively simple.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] The main purpose of this application is to provide a projection device and a projection system, which makes it easy for users to disassemble and assemble the support frame and the base to adapt to different scenarios.

[0006] To achieve the above objectives, in a first aspect, the present application provides a projection device, comprising:

[0007] Projection host;

[0008] The support assembly includes a support frame and a base, the projection host is rotatably arranged on the support frame, and the support frame is detachably arranged on the base;

[0009] The circuit assembly includes a first circuit board, a second circuit board, and an electrical connector. The first circuit board is disposed in the support frame and connected to the internal circuit of the projection host. The second circuit board is disposed on the base and connected to the internal circuit of the base.

[0010] The first end of the electrical connector is connected to the first circuit board, and the second end of the electrical connector is connected to the second circuit board.

[0011] Based on the above technical solution, this application can also be improved as follows.

[0012] In some embodiments, the first circuit board is disposed at the bottom end of the support frame, and the bottom end of the support frame is an end facing the base.

[0013] The above technical solution has the following advantages or beneficial effects: since the bottom end of the support frame faces the base, the electrical connection between the circuit board and the base can be achieved through a short-distance electrical connector, which simplifies the wiring process and reduces the length and complexity of the cable.

[0014] In some embodiments, further comprising a rotating member;

[0015] The support frame includes a support body and at least two connecting parts. The at least two connecting parts are located on opposite sides of the support body. The projection host is rotatably arranged between the two adjacent connecting parts through a rotating member.

[0016] The above technical solution has the following advantages or beneficial effects: Through the rotating member, the user can easily adjust the angle of the projection host to adapt to different projection needs and usage scenarios. Whether in the vertical direction or the horizontal direction, flexible angle adjustment can be achieved.

[0017] In some embodiments, a positioning member is further included, the positioning member being disposed on the base and protruding from the base toward the support frame;

[0018] The electrical connector includes a first electrical connector. The positioning member is provided with an opening, the support frame is provided with a communication hole, and the first end of the first electrical connector passes through the opening and the communication hole to be connected to the first circuit board.

[0019] The above technical solution has the following advantages or beneficial effects: the design of the positioning part ensures precise alignment and stable connection between the support frame and the base, avoiding misalignment and looseness between components. When installing and disassembling, the user only needs to align the positioning part, which is simple and convenient to operate, thereby improving the user experience.

[0020] In some embodiments, a positioning groove is provided on the support frame, the notch of the positioning groove faces the base, and the positioning groove is used to accommodate the positioning member;

[0021] The communicating hole is arranged at the bottom of the positioning groove.

[0022] The above technical solution has the following advantages or beneficial effects: The coordinated design of the positioning groove and the positioning member ensures precise alignment between the support frame and the base, preventing misalignment and loosening of components, and improving the installation accuracy of the device. During installation, the user only needs to insert the positioning member into the positioning groove, which is simple and convenient, reducing installation steps and time, and improving the user experience.

[0023] In some embodiments, an insulating member is further included, and the insulating member is disposed around the outer periphery of the first electrical connector.

[0024] The above technical solution has the following advantages or beneficial effects: the insulating member can effectively prevent short circuits between the first electrical connector and other conductive components or the metal housing, thereby improving the electrical safety of the device. The insulating member can also prevent users from accidentally contacting live parts when operating or maintaining the device, reducing the risk of electric shock and improving user safety.

[0025] In some embodiments, the support assembly further includes a support rod extending along the first direction and detachably disposed between the support frame and the base;

[0026] There are at least two electrical connectors, including a second electrical connector and a third electrical connector connected to each other. The second electrical connector is arranged between the bottom end of the support frame and the top end of the support rod, and the third electrical connector is arranged between the bottom end of the support rod and the top end of the base.

[0027] The above technical solution has the following advantages or beneficial effects: the detachable design of the support rod makes the support assembly highly flexible. Users can adjust it according to their needs to achieve interchangeability between the floor stand and the desktop pan-tilt head without affecting the internal wiring, and it is also convenient for users to disassemble and assemble it by themselves.

[0028] In some embodiments, a positioning post is provided on the positioning member, the positioning post protrudes toward the support frame, a positioning hole is provided on the support frame, and the positioning post passes through the positioning hole.

[0029] The above technical solution has the following advantages or beneficial effects: the design of the positioning column can prevent the positive and negative poles of the pins on the electrical connector from being connected in reverse. On the other hand, it can protect the male pins of the electrical connector exposed on the second circuit board.

[0030] In a second aspect, the present application further provides a projection device, comprising:

[0031] Projection host;

[0032] The support assembly includes a support frame and a base. The projection host is rotatably mounted on the support frame, and the support frame is detachably mounted on the base.

[0033] A first circuit board and a second circuit board, wherein the first circuit board is arranged in the support frame and connected to the internal circuit of the projection host; the second circuit board is arranged on the base and connected to the internal circuit of the base;

[0034] The first circuit board and the second circuit board are electrically connected to each other so that the internal circuit of the projection host is electrically connected to the internal circuit of the base.

[0035] In a third aspect, the present application also provides a projection system, comprising a projection screen and the above-mentioned projection device, wherein the projection device is used to project a projection image onto the projection screen.

[0036] The present application provides a projection device and a projection system, wherein the projection system includes a projection screen and the above-mentioned projection device, and the projection device is used to project a projection image onto the projection screen; wherein the projection device includes a projection host; a support assembly including a support frame and a base, wherein the projection host is rotatably set on the support frame, and the support frame is detachably set on the base; a circuit assembly including a first circuit board, a second circuit board and an electrical connector, wherein the first circuit board is set in the support frame and connected to the internal circuit of the projection host, and the second circuit board is set on the base and connected to the internal circuit of the base; the first end of the electrical connector is connected to the first circuit board, and the second end of the electrical connector is connected to the second circuit board.

[0037] By distributing the first and second circuit boards in different locations on the support frame and base, users can more easily disassemble the support frame and base according to different usage scenarios. This is especially true when repairing or replacing a component. For example, the floor stand and desktop head can be interchanged without affecting the internal wiring, making it easier for users to disassemble and assemble the device. In addition, the use of a contact power connection solution eliminates the need for complex cable connections when replacing the bracket, greatly simplifying the operation process, ensuring the stability and continuity of the electrical connection, and reducing the risk of poor contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] Figure 1 A schematic structural diagram of a projection device provided in an embodiment of the present application;

[0040] Figure 2 An exploded schematic diagram of a projection device provided in an embodiment of the present application;

[0041] Figure 3 A cross-sectional view of a projection device provided in an embodiment of the present application;

[0042] Figure 4 An exploded schematic diagram of a base in a projection device provided in an embodiment of the present application;

[0043] Figure 5 A cross-sectional view of a base in a projection device provided in an embodiment of the present application;

[0044] Figure 6 An assembly diagram of the support frame and the main body housing of the projection device provided in an embodiment of the present application;

[0045] Figure 7 This is a cross-sectional view of the assembly of the support frame and the main body housing of the projection device provided in an embodiment of the present application;

[0046] Figure 8 for Figure 7 A partial enlarged view of point I in the middle;

[0047] Figure 9 An exploded schematic diagram of another projection device provided in an embodiment of the present application;

[0048] Figure 10A cross-sectional view of another projection device provided in an embodiment of the present application;

[0049] Figure 11 for Figure 10 A partial enlarged schematic diagram of point II in the middle;

[0050] Figure 12 for Figure 10 A partial enlarged schematic diagram of point III in the middle.

[0051] Description of reference numerals:

[0052] 100-projection device;

[0053] 110 - support assembly; 111 - support frame; 1111 - support outer arm; 1112 - support inner arm; 1113 - support arm; 112 - base; 1121 - first bottom cover; 1122 - second bottom cover; 1123 - counterweight; 1124 - power socket; 113 - support rod;

[0054] 120 - circuit assembly; 121 - first circuit board; 122 - second circuit board; 123 - electrical connector; 1231 - first electrical connector; 1232 - second electrical connector; 1233 - third electrical connector;

[0055] 130-rotating member;

[0056] 140- positioning member; 141- opening; 142- positioning column;

[0057] 150-insulation; 160-decorative cover; 170-connector;

[0058] 210-projection host; 211-host housing. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. All other embodiments obtained are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0060] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0061] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to 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, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0063] Currently, a projection device, such as a projector, carries a pan-tilt chassis, and a projection host is mounted on the pan-tilt chassis. Generally, the pan-tilt chassis is placed on a desktop or a counter, and this placement scenario is relatively simple.

[0064] To overcome the shortcomings of the prior art, the projection device and projection system provided by this application distribute the first and second circuit boards in two different locations, the support frame and the base. This allows users to more conveniently disassemble the support frame and the base according to different usage scenarios. This is particularly true when repairing or replacing a component. For example, the floor stand and the desktop head can be interchanged without affecting the internal wiring, making it easier for users to disassemble and assemble the device themselves. In addition, the use of a contact power connection solution eliminates the need for complex cable connections when replacing the bracket, greatly simplifying the operation process, ensuring the stability and continuity of the electrical connection, and reducing the risk of poor contact.

[0065] The contents of this application will be described in detail below with reference to the accompanying drawings so that those skilled in the art can understand the contents of this application more clearly and in detail.

[0066] Figure 1 This is a schematic diagram of the structure of a projection device provided in an embodiment of the present application. Figure 2 This is an exploded schematic diagram of a projection device provided in an embodiment of the present application. Figure 3 A cross-sectional view of a projection device provided in an embodiment of the present application.

[0067] like Figures 1 to 3 As shown, an embodiment of the present application provides a projection device 100, comprising:

[0068] Projection host 210;

[0069] The support assembly 110 includes a support frame 111 and a base 112. The projection host 210 is rotatably mounted on the support frame 111. The support frame 111 is detachably mounted on the base 112.

[0070] The circuit assembly 120 includes a first circuit board 121, a second circuit board 122, and an electrical connector 123. The first circuit board 121 is disposed within the support frame 111 and is connected to the internal circuitry of the projection host 210. The second circuit board 122 is disposed on the base 112 and is connected to the internal circuitry of the base 112.

[0071] A first end of the electrical connector 123 is connected to the first circuit board 121 , and a second end of the electrical connector 123 is connected to the second circuit board 122 .

[0072] Through the above arrangement, i.e., by distributing the first circuit board 121 and the second circuit board 122 in two different locations on the support frame 111 and the base 112, users can more conveniently disassemble the support frame 111 and the base 112 according to different usage scenarios. This is especially true when repairing or replacing a component. For example, the floor stand and the desktop pan / tilt can be interchanged without affecting the internal wiring, making it easier for users to disassemble and assemble the pan / tilt. In addition, the use of a contact power connection solution eliminates the need for complex cable connections when replacing the stand, greatly simplifying the operation process, ensuring the stability and continuity of the electrical connection, and reducing the risk of poor contact.

[0073] It should be noted that each structure is described in detail below.

[0074] It should be noted that the projection host 210 can be flipped and rotated relative to the support frame 111 to adjust the projection direction and projection angle of the projection host 210 to meet the projection requirements in multiple angles and multiple scenes.

[0075] Figure 4 This is an exploded schematic diagram of the base of the projection device provided in an embodiment of the present application. Figure 5 A cross-sectional view of the base of the projection device provided in an embodiment of the present application.

[0076] like Figure 4 and Figure 5 As shown, in some embodiments, the base 112 includes a first bottom cover 1121 and a second bottom cover 1122 , and the first bottom cover 1121 and the second bottom cover 1122 cover each other to accommodate cables.

[0077] In order to improve stability, a counterweight 1123 may be added to the base 112 to prevent the projection host 210 from tipping over due to an unstable center of gravity during flipping or rotation, thereby affecting its use.

[0078] Exemplarily, the first bottom cover 1121 and the second bottom cover 1122 are screwed together, or connected by bolts, or can be connected by fasteners, which is not limited here.

[0079] In some embodiments, a power socket 1124 is provided on the base 112 . The power socket 1124 is exposed and connected to a power cord for power supply. The user can more conveniently power the projection host 210 through the power socket 1124 .

[0080] like Figures 1 to 5 As shown, in some embodiments, the first circuit board 121 is disposed at the bottom end of the support frame 111 , and the bottom end of the support frame 111 is an end facing the base 112 .

[0081] The above technical solution has the following advantages or beneficial effects: since the bottom end of the support frame 111 faces the base 112, the electrical connection between the circuit board and the base 112 can be achieved through a short-distance electrical connector 123, which simplifies the wiring process and reduces the length and complexity of the cable.

[0082] In addition, placing the first circuit board 121 at the bottom of the support frame 111 can fully utilize the vertical space inside the device, making the overall design more compact and reasonable; it can also lower the center of gravity of the projection device 100, enhance the stability of the device, and reduce the risk of tipping.

[0083] In some embodiments, the circuit board is set at the bottom of the support frame 111, and the heat dissipation design of the base 112 (such as heat dissipation holes, heat sinks, etc.) can be used to more effectively manage the heat of the first circuit board 121, improve the heat dissipation effect, and ensure stable operation of the device under high load.

[0084] like Figures 1 to 5 As shown, in some embodiments, a rotating member 130 is further included.

[0085] The support frame 111 includes a support body and at least two connection parts. The at least two connection parts are located on opposite sides of the support body. The projection host 210 is rotatably disposed between two adjacent connection parts via the rotating member 130 .

[0086] The above technical solution has the following advantages or beneficial effects: Through the rotating member 130, the user can easily adjust the angle of the projection host 210 to adapt to different projection requirements and usage scenarios. Whether in the vertical direction or the horizontal direction, flexible angle adjustment can be achieved.

[0087] In addition, by placing the projection host 210 between two adjacent connection parts and connecting them through the rotating member 130, the weight of the projection host 210 can be evenly distributed on the support frame 111, thereby enhancing the stability of the device and effectively preventing the projection host 210 from tipping over or sliding when adjusting the angle, thereby improving the safety of the device.

[0088] In some embodiments, the rotating member 130 has a certain damping or locking mechanism, so that the user can accurately adjust the angle of the projection host 210 and lock it at a desired position to ensure the stability and accuracy of the projected image.

[0089] For example, the rotating member 130 may include a rotating shaft.

[0090] In some embodiments, the projection host 210 includes a host housing 211, a laser, an optical engine and a lens. The host housing 211 is rotatably arranged between two adjacent connecting parts through a rotating member 130. The optical parts such as the laser, the optical engine and the lens are connected in sequence along the propagation direction of the light beam and are located in the host housing 211.

[0091] Figure 6 This is an assembly diagram of the support frame and the main body shell in the projection device provided in the embodiment of the present application, such as Figure 6 As shown, in other embodiments, a decorative cover 160 is further included. The decorative cover 160 is covered on the end of the rotating member 130 to be installed on the support frame 111 to improve the appearance.

[0092] Figure 7 This is a cross-sectional view of the assembly of the support frame and the main body housing in the projection device provided in an embodiment of the present application. Figure 8 for Figure 7 A local enlarged view of point I in the middle.

[0093] like Figure 7 and Figure 8 As shown, in some embodiments, the support frame 111 includes a support outer arm 1111, a support inner arm 1112 and a support arm 1113, wherein the support outer arm 1111 is located on the outer surface of the support frame 111 and is an outer decorative component, the support inner arm 1112 is located on the inner surface of the support frame 111 and is an inner decorative component, and the support arm 1113 is located between the support outer arm 1111 and the support inner arm 1112, and mainly serves to support the laser host.

[0094] Exemplarily, the support arm 1113 is a die-cast part. The die-casting process can achieve high-precision manufacturing and can produce a support arm 1113 with complex shape and precise size to ensure its precise fit with other components; die-cast parts usually use high-strength materials such as aluminum alloy, zinc alloy or magnesium alloy, have excellent mechanical properties, and can withstand large loads and impacts.

[0095] like Figures 1 to 8 As shown, in some embodiments, a positioning member 140 is further included. The positioning member 140 is disposed on the base 112 and protrudes from the base 112 toward the support frame 111 .

[0096] The electrical connector 123 includes a first electrical connector 1231 . The positioning member 140 defines an opening 141 , and the support frame 111 defines a communication hole. A first end of the first electrical connector 1231 passes through the opening 141 and the communication hole to connect to the first circuit board 121 .

[0097] The above technical solution has the following advantages or beneficial effects: the design of the positioning member 140 ensures precise alignment and stable connection between the support frame 111 and the base 112, avoiding misalignment and looseness between components. When installing and disassembling, the user only needs to align the positioning member 140, which is simple and convenient to operate, thereby improving the user experience.

[0098] In addition, the positioning member 140 protrudes from the base 112 and cooperates with the support frame 111, which can effectively prevent the support frame 111 from moving or tilting during use, thereby enhancing the overall stability of the device.

[0099] The first electrical connector 1231 passes through the opening 141 and the connecting hole, ensuring a reliable connection between the electrical connector 123 and the first circuit board 121, reducing the risk of poor contact and improving the stability of the electrical connection. The design of the positioning member 140, opening 141, and connecting hole simplifies the installation process, allowing the user to easily align the support frame 111 with the positioning member 140 on the base 112 for quick installation.

[0100] In some examples, the positioning member 140 can be detachably mounted on the base 112 by bolts or snaps to facilitate subsequent maintenance.

[0101] For example, the positioning member 140 may be a sheet-like structure, which makes the structure more compact.

[0102] In some embodiments, a positioning groove is defined on the support frame 111 , with the notch of the positioning groove facing the base 112 , and the positioning groove is used to accommodate the positioning member 140 .

[0103] The communicating hole is arranged at the bottom of the positioning groove.

[0104] The above technical solution has the following advantages or beneficial effects: The design of the positioning groove and the positioning member 140 ensures precise alignment between the support frame 111 and the base 112, preventing misalignment and loosening of the components and improving the installation accuracy of the device. During installation, the user only needs to insert the positioning member 140 into the positioning groove, which is simple and convenient, reducing installation steps and time, and improving the user experience.

[0105] In addition, the connecting hole is set at the bottom of the positioning groove to ensure that the first electrical connector 1231 can pass through the opening 141 and the connecting hole and reliably connect with the first circuit board 121, reducing the risk of poor contact and improving the stability of the electrical connection.

[0106] In some examples, the shape of the positioning groove matches the shape of the positioning member 140, so that the positioning member 140 can be just accommodated in the positioning groove to reduce the gap between the support frame 111 and the base 112, and the compactness is high.

[0107] like Figure 2 、 Figure 4 and Figure 8 As shown, in some embodiments, an insulating member 150 is further included, and the insulating member 150 is disposed around the outer periphery of the first electrical connection member 1231 .

[0108] The above technical solution has the following advantages or beneficial effects: Insulator 150 can effectively prevent short circuits between first electrical connector 1231 and other conductive components or the metal housing, thereby improving the electrical safety of the device. Insulator 150 can also prevent users from accidentally touching live parts when operating or maintaining the device, reducing the risk of electric shock and improving user safety.

[0109] In some examples, the insulating member 150 can be a single insulating material or a mixture of multiple insulating materials. The material can be non-metallic materials such as rubber, resin, polypropylene, etc. The specific insulating material is not limited to the above-mentioned materials and can also be others.

[0110] In some examples, the insulating member 150 may be a hollow annular structure, a hollow elliptical structure, a hollow square structure, a hollow polygonal structure, or a hollow irregular structure.

[0111] Figure 9 This is an exploded schematic diagram of another projection device provided in an embodiment of the present application. Figure 10 A cross-sectional view of another projection device provided in an embodiment of the present application, Figure 11 for Figure 10 A partial enlarged schematic diagram of point II in the middle; Figure 12 for Figure 10 A local enlarged schematic diagram of point III in the middle.

[0112] like Figures 9 to 12 As shown, in some embodiments, the support assembly 110 further includes a support rod 113 , which extends along a first direction and is detachably disposed between the support frame 111 and the base 112 ;

[0113] There are at least two electrical connectors 123, and the at least two electrical connectors 123 include a second electrical connector 1232 and a third electrical connector 1233 connected to each other. The second electrical connector 1232 is arranged between the bottom end of the support frame 111 and the top end of the support rod 113, and the third electrical connector 1233 is arranged between the bottom end of the support rod 113 and the top end of the base 112.

[0114] The above technical solution has the following advantages or beneficial effects: the detachable design of the support rod 113 makes the support assembly 110 highly flexible. Users can adjust it as needed to achieve interchangeability between the floor stand and the desktop pan-tilt head without affecting its internal wiring, and it is also convenient for users to disassemble and assemble it by themselves.

[0115] Specifically, when the support rod 113 is not needed, the support frame 111 and the base 112 can be directly installed; when the support rod 113 is needed, for example, when the customer needs to place the projection device 100 on the ground, or wants to adjust the height, it is only necessary to remove the support frame 111 and the base 112, and add the support rod 113 in the middle, so that the user can disassemble and assemble according to their own needs, which is convenient for operation.

[0116] The design of the second and third electrical connectors 1232 and 1233 ensures reliable electrical connection, maintaining continuity and stability even with the addition of support rods 113. The segmented design of the electrical connectors 123 reduces cable movement and wear, lowering the risk of cable damage and short circuits, and improving device safety.

[0117] In addition, the support rod 113 extends along the first direction and connects the support frame 111 and the base 112 through the electrical connector 123, so that the force applied to the entire support assembly 110 is more uniform, thereby enhancing the overall stability of the device.

[0118] In some examples, the support rod 113 may be a hollow iron rod, and electrical wires may be routed inside the rod.

[0119] In other examples, a strip groove is provided in the support rod 113, and the wires can pass through the strip groove and connect to the projection host 210. Firstly, it can save space, secondly, it can prevent the wires from getting tangled, and thirdly, it is aesthetically pleasing.

[0120] like Figure 2 and Figure 4 As shown, in some embodiments, a positioning post 142 is provided on the positioning member 140 . The positioning post 142 protrudes toward the support frame 111 . A positioning hole is provided on the support frame 111 , and the positioning post 142 passes through the positioning hole.

[0121] The above technical solution has the following advantages or beneficial effects: the design of the positioning column 142 can prevent the positive and negative poles of the pins on the electrical connector 123 from being connected in reverse. On the other hand, it can protect the male pins of the electrical connector 123 exposed on the second circuit board 122.

[0122] In addition, it should be noted that the matching design of the positioning column 142 and the positioning hole ensures precise alignment between the support frame 111 and the base 112, avoids misalignment and looseness between components, and improves the installation accuracy of the equipment. After the positioning column 142 passes through the positioning hole, it can provide additional mechanical support, enhance the connection stability between the support frame 111 and the base 112, and prevent the support frame 111 from moving or tilting during use.

[0123] like Figures 1 to 12As shown, in some embodiments, the projection device 100 further includes a plurality of connectors 170 , the support frame 111 and the base 112 can be connected via the connectors 170 , and the support rod 113 can be connected to the support frame 111 and the base 112 respectively via the connectors 170 .

[0124] It should be noted that, in the embodiment of the present application, considering the cost of the connector 170 , the connector 170 may be a threaded fastener.

[0125] Correspondingly, between the support frame 111 and the base 112, both the support frame 111 and the base 112 have connecting holes, wherein at least one of the connecting hole of the support frame 111 and the connecting hole of the base 112 can be a threaded hole, and the connecting member 170 can pass through the connecting holes of the two, and can be tightened or loosened to adjust the fixed and disassembled states.

[0126] In addition, correspondingly, connecting holes are also provided on the support rod 113 between the support frame 111 and the base 112 , and the same applies to the above contents.

[0127] Of course, when the support rod 113 and the base 112 need to be removed, it is only necessary to loosen the connecting piece 170 and then take the connecting piece 170 out of the connecting hole in turn.

[0128] Specifically, the support rod 113 of the floor stand has screw holes inside for the locking connector 170, which is secured to the support frame 111 with two screws. The other end of the support rod 113 is connected to the third electrical connector 1233 (screwed). The support rod 113 is hollow, and the second and third electrical connectors 1232 and 1233 are connected by a wire. The base 112 has rivets that secure the second circuit board 122, to which the power cord socket is soldered.

[0129] In addition, a protective member is added to the support rod 113 to ensure a smooth transition to the chassis. This member protects the cables. The protective member and support rod 113 are secured with screws. One side of the protective member is secured to the support rod 113, while the other side has screw holes drilled in it to secure the third electrical connector 1233. The internal structure of the chassis is similar to that of the gimbal chassis.

[0130] The projection device provided in an embodiment of the present application includes: a projection host; a support assembly, including a support frame and a base, the projection host is rotatably set on the support frame, and the support frame is detachably set on the base; a circuit assembly, including a first circuit board, a second circuit board and an electrical connector, the first circuit board is set in the support frame and connected to the internal circuit of the projection host, the second circuit board is set on the base and connected to the internal circuit of the base; the first end of the electrical connector is connected to the first circuit board, and the second end of the electrical connector is connected to the second circuit board.

[0131] By distributing the first and second circuit boards in different locations on the support frame and base, users can more easily disassemble the support frame and base according to different usage scenarios. This is especially true when repairing or replacing a component. For example, the floor stand and desktop head can be interchanged without affecting the internal wiring, making it easier for users to disassemble and assemble the device. In addition, the use of a contact power connection solution eliminates the need for complex cable connections when replacing the bracket, greatly simplifying the operation process, ensuring the stability and continuity of the electrical connection, and reducing the risk of poor contact.

[0132] In addition, if Figures 1 to 12 As shown, the embodiment of the present application further provides a projection device 100, which includes:

[0133] Projection host 210;

[0134] The support assembly 110 includes a support frame 111 and a base 112. The projection host 210 is rotatably mounted on the support frame 111. The support frame 111 is detachably mounted on the base 112.

[0135] The first circuit board 121 and the second circuit board 122 are arranged in the support frame 111 and connected to the internal circuit of the projection host 210; the second circuit board 122 is arranged on the base 112 and connected to the internal circuit of the base 112;

[0136] The first circuit board 121 and the second circuit board 122 are electrically connected to each other, so that the internal circuits of the projection host 210 are electrically connected to the internal circuits of the base 112 .

[0137] The projection device provided in the embodiments of the present application, by distributing the first and second circuit boards in different locations on the support frame and base, allows users to more conveniently disassemble the support frame and base according to different usage scenarios. This is particularly true when repairing or replacing a component, such as enabling interchangeability between a floor-standing stand and a desktop head without affecting internal wiring, making it easier for users to disassemble and assemble the device. Furthermore, the use of a contact power connection eliminates the need for complex cable connections when replacing the stand, greatly simplifying the operation process, ensuring the stability and continuity of the electrical connection, and reducing the risk of poor contact.

[0138] In addition, an embodiment of the present application further provides a projection system, including a projection screen and the above-mentioned projection device 100, where the projection device 100 is used to project a projection image onto the projection screen.

[0139] It should be noted that the projection system provided in this embodiment specifically includes a projection host 210 , a projection screen, and the projection device 100 in the aforementioned embodiment. The projection host 210 is used to project a projection image onto the display film of the projection screen.

[0140] The specific structure, working principle and function of the projection device 100 have been described in detail in the aforementioned embodiment 1 and will not be repeated here.

[0141] Specifically, in the projection system of this embodiment, the projection host 210 can be any existing projector, such as a laser projector, etc. The projection host 210 can project a projection image onto the display film of the projection screen, so that the display film can display the projection image for people to watch.

[0142] The projection screen includes a display film, which can be an optical screen. The display film can be an optical film mainly composed of a Fresnel lens layer. For example, the display film can include a diffusion layer, a substrate layer, and a Fresnel lens layer stacked in sequence in a direction away from the projection host 210 (or, it can also include a substrate layer, a diffusion layer, and a Fresnel lens layer stacked in sequence); wherein the substrate layer is a transparent film layer. When displaying an image, a light beam is emitted from the projection host 210. When passing through the diffusion layer, the light is dispersed by the diffusion layer and then reflected on the surface of the Fresnel lens layer, thereby allowing the user to view the image.

[0143] By distributing the first and second circuit boards in different locations on the support frame and base, users can more easily disassemble the support frame and base according to different usage scenarios. This is especially true when repairing or replacing a component. For example, the floor stand and desktop head can be interchanged without affecting the internal wiring, making it easier for users to disassemble and assemble the device. In addition, the use of a contact power connection solution eliminates the need for complex cable connections when replacing the bracket, greatly simplifying the operation process, ensuring the stability and continuity of the electrical connection, and reducing the risk of poor contact.

[0144] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships 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 operate in a specific orientation, and therefore should not be understood as limiting the present application.

[0145] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0146] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A projection device, characterized in that: The projection device comprises: Projection host; Support assembly, including: A support frame, on which the projection host is rotatably mounted; A base, on which the support frame is detachably mounted; Circuit assembly, including: A first circuit board is disposed in the support frame and connected to the internal circuit of the projection host; a second circuit board, disposed on the base and connected to internal circuits of the base; An electrical connector, wherein a first end of the electrical connector is connected to the first circuit board, and a second end of the electrical connector is connected to the second circuit board.

2. The projection device according to claim 1, wherein: The first circuit board is arranged at the bottom end of the support frame, and the bottom end of the support frame is an end facing the base.

3. The projection device according to claim 1, wherein: Also includes a rotating member; The support frame includes a support body and at least two connecting parts. The at least two connecting parts are located on opposite sides of the support body. The projection host is rotatably arranged between two adjacent connecting parts through the rotating member.

4. The projection device according to any one of claims 1 to 3, characterized in that: It also includes a positioning member, which is arranged on the base and protrudes from the base toward the support frame, and has an opening formed on the positioning member; A communication hole is provided on the support frame; The electrical connector includes: A first electrical connector, wherein a first end of the first electrical connector passes through the opening and the communicating hole to be connected to the first circuit board.

5. The projection device according to claim 4, wherein: A positioning groove is provided on the support frame, the notch of the positioning groove faces the base, and the positioning groove is used to accommodate the positioning member; The communicating hole is arranged at the bottom of the positioning groove.

6. The projection device according to claim 5, characterized in that It also includes an insulating member, which is arranged around the outer periphery of the first electrical connecting member.

7. The projection device according to any one of claims 1 to 3, characterized in that: The support assembly further comprises: a support rod extending along a first direction and detachably disposed between the support frame and the base; There are at least two electrical connectors, and the at least two electrical connectors include: A second electrical connector and a third electrical connector are connected to each other, wherein the second electrical connector is arranged between the bottom end of the support frame and the top end of the support rod, and the third electrical connector is arranged between the bottom end of the support rod and the top end of the base.

8. The projection device according to claim 4, wherein: The positioning member is provided with a positioning column, the positioning column protrudes toward the support frame, the support frame is provided with a positioning hole, and the positioning column passes through the positioning hole.

9. A projection device, characterized in that: The projection device comprises: Projection host; A support assembly includes a support frame and a base, wherein the projection host is rotatably mounted on the support frame, and the support frame is detachably mounted on the base; A first circuit board is disposed in the support frame and connected to the internal circuit of the projection host; a second circuit board, disposed on the base and connected to internal circuits of the base; The first circuit board is electrically connected to the second circuit board, so that the internal circuit of the projection host is electrically connected to the internal circuit of the base.

10. A projection system, characterized in that: The invention comprises a projection screen and the projection device according to any one of claims 1 to 9, wherein the projection device is used to project a projection picture onto the projection screen.

Images