WO2024087260A1

WO2024087260A1 - Projector

Info

Publication number: WO2024087260A1
Application number: PCT/CN2022/131536
Authority: WO
Inventors: 胡丹; 邓卓; 奈西德尼·威尔逊; 廖劭文; 龙蓉; 黄日东; 王骁逸; 胡震宇
Original assignee: 深圳市火乐科技发展有限公司
Priority date: 2022-10-24
Filing date: 2022-11-11
Publication date: 2024-05-02
Also published as: CN219414108U; CN218914279U

Abstract

A projector. The projector (100) comprises a main body (10), a support (20), and a connecting ring (30); an accommodating cavity is formed between the main body (10) and the support (20), the connecting ring (30) is accommodated in the accommodating cavity, and the connecting ring (30) is in interference fit with the main body (10) and the support (20). The angle of the projector can be flexibly adjusted.

Description

projector

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to the Chinese patent application filed with the China Patent Office on October 24, 2022, with application number 202222802968.9 and application name “Projector”, the entire contents of which are incorporated by reference into this application.

Technical Field

The present disclosure relates to the field of projection technology, and in particular to a projector.

Background technique

Projectors are widely used in homes, offices, schools, and entertainment venues, etc. In the process of using a common projector, the projector needs to be placed in different locations according to different usage scenarios, so different projection angles of the projector need to be adjusted.

The projection angle adjustment of traditional projectors is cumbersome and the adjustment angle is limited. It cannot be quickly adjusted according to the specific environment and cannot meet the needs of modern society for projectors.

Summary of the invention

According to various embodiments of the present application, a projector is provided, which includes a main body, a bracket and a connecting ring; a receiving cavity is formed between the main body and the bracket, the connecting ring is received in the receiving cavity, and the connecting ring is interference-fitted with the main body and the bracket.

In the above design, the connecting ring has an interference fit with the main body and the bracket, which can not only realize the rotatable connection between the main body and the bracket, but also provide damping and hovering functions after the main body and the bracket rotate relative to each other, so that the projector angle can be maintained at a relatively stable angle after adjustment.

In a second aspect, a projector is provided, comprising a main body, a bracket and a base, wherein the bracket is rotatably connected to the main body along a first direction; the base comprises a connecting member and a supporting member, the connecting member is fixedly connected to the bracket, and the supporting member is rotatably connected to the connecting member along a second direction; wherein the first direction intersects with the second direction.

In the above design, the main body and the bracket are rotatably connected along a first direction, and the bracket and the base are rotatably connected along a second direction, so that the projector can flexibly adjust the angle in two directions.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is a partial structural diagram of a projector provided by the related art.

FIG. 2 is a schematic diagram of the overall structure of a projector provided in one embodiment of the present application.

FIG. 3 is an exploded view of the projector shown in FIG. 2 .

FIG. 4 is a partial cross-sectional schematic diagram of the projector shown in FIG. 2 along the IV-IV direction.

FIG. 5 is a schematic structural diagram of the projector shown in FIG. 2 adjusting the projection angle around the X-axis.

FIG. 6 is an exploded view of the base shown in FIG. 3 along one direction.

FIG. 7 is an exploded view of the base shown in FIG. 3 taken from another direction.

FIG. 8 is a schematic structural diagram of the projector shown in FIG. 2 adjusting the projection angle around the Z axis.

FIG. 9 is a schematic structural diagram of a base provided in another embodiment of the present application.

FIG. 10 is an exploded view of the base shown in FIG. 9 .

FIG. 11 is a partial cross-sectional schematic diagram of the base shown in FIG. 9 along the XI-XI direction.

FIG. 12 is a schematic structural diagram of a projector mounted on the base of FIG. 9 and adjusting the projection angle around the X-axis.

FIG. 13 is a schematic structural diagram of a projector mounted with the base of FIG. 9 and adjusting the projection angle around the Z axis.

FIG. 14 is a schematic diagram of the internal structure of the bracket shown in FIG. 3 .

Main component symbols

Projector 100, 100'

Main Body 10

Host 11

Fixings 13

First fixed part 131

Second fixed part 133

Bracket 20

First pole 21

Extension 211

Second rod 23

Third rod 25

Depression 27

District 1 271

Second District 272

District 3 273

Connecting ring 30

Block piece 40

Base

50, 60

First Pedestal 51

Connector 511

Rotating base plate 53

Support Department 531

Rotating part 533

Silicone pad 535

Friction plate 55

Second base 61

Connection part 611

Connector 613

Screw connection 615

Floor stand 63

Sleeve 65

Blocking Department 651

Lock Firmware 67

Elastic parts 68

Plastic parts

69, 69a

Line 70

Power switch 71

Power socket 73

Bottom 81’

Nut 83’

Detailed ways

The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

It should be noted that when a component is referred to as being "disposed on" another component, it may be directly on the other component or there may be a component centered thereon. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be a component centered thereon. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used herein are for illustrative purposes only.

It should be noted that the concepts of "first", "second", etc. mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units. "Fitting" mentioned in this disclosure refers to mutual contact and zero-clearance fit.

Please refer to FIG. 1 , the related art provides a projector 100 ′, which is provided with a nut 83 ′ on the bottom surface 81 ′ of the projector 100 ′ to match different brackets, thereby adjusting the projection angle of the projector 100 ′ to meet the actual use scenario of the projector 100 ′.

The inventor of the present application found that the projection direction of projector 100' is fixed. If the projection angle is to be changed, the operation is cumbersome and the adjustment angle is limited, and it cannot be quickly adjusted according to the specific environment.

Please refer to Figures 2 and 3. An embodiment of the present application provides a projector 100, which includes a main body 10, a bracket 20 and a connecting ring 30 (see Figure 3). The bracket 20 is roughly U-shaped and semi-surrounds the main body 10. The area where the main body 10 and the bracket 20 are connected forms a receiving cavity (not marked in the figure). The connecting ring 30 is accommodated in the receiving cavity. The connecting ring 30 has an interference fit with the main body 10 and the bracket 20, so that the bracket 20 and the main body 10 can be rotatably connected, and after the bracket 20 rotates relative to the main body 10, the bracket 20 and the main body 10 can maintain a relatively stable angle.

Referring to FIG3 , the main body 10 includes a host 11 and a fixing member 13. The host 11 is roughly a rectangular parallelepiped, and the host 11 is a device that can project images or videos onto a screen. For ease of explanation, the length, width, and height of the host 11 are defined as the X-axis, the Y-axis, and the Z-axis, respectively, wherein the bracket 20 can rotate relative to the main body 10 with the X-axis (i.e., the first direction) as the rotation axis.

The fixing member 13 is fixedly connected to the host 11 . The fixing member 13 and the host 11 may be detachably fixedly connected or may be a relatively fixed integrated structure. In the present embodiment, the fixing member 13 and the main body 10 are detachably fixedly connected.

Please refer to FIG. 4 , the fixing member 13 includes a first fixing portion 131 and a second fixing portion 133 . The first fixing portion 131 is fixed on the host 11 , and the second fixing portion 133 is away from the host 11 and is disposed around the outer periphery of the first fixing portion 131 .

The bracket 20 includes a first rod portion 21, a second rod portion 23, and a third rod portion 25. The first rod portion 21 and the second rod portion 23 are respectively located at two ends of the third rod portion 25 and extend toward the main body 10 to form a bracket 20 with a substantially U-shaped structure. The first rod portion 21 and the second rod portion 23 are respectively located at opposite sides of the main body 10. The first rod portion 21 is rotatably connected to the host 11 through a connecting ring 30, and the second rod portion 23 is rotatably connected to the host 11 through another connecting ring 30.

In this embodiment, the first rod 21 and the second rod 23 are bilaterally symmetrical with the Z axis as the central axis. For the convenience of explanation, the first rod 21 and the host 11 are rotatably connected as an example. The first rod 21 is provided with a recessed portion 27. Similarly, the second rod 23 is also provided with a recessed portion (not shown). In this embodiment, the recessed portion 27 is a stepped hole. The recessed portion 27 includes a first area 271, a second area 272 and a third area 273 that are connected in sequence and have increasing diameters in sequence. The first rod 21 is provided with an extension portion 211. The extension portion 211 is surrounded to form a first area 271. The first fixing portion 131 is penetrated in the first area 271; the second fixing portion 133 is accommodated in the second area 272. The second fixing portion 133 and the first rod 21 are spaced apart to form a receiving cavity. The connecting ring 30 is accommodated in the receiving cavity and sleeved on the second fixing portion 133. The connecting ring 30 and the second fixing portion 133 and the first rod 21 are all interference fit. The connecting ring 30 is elastic and can be made of rubber, such as fluororubber, specifically, a polymer elastomer containing fluorine atoms on the carbon chain of the main chain or side chain. The connecting ring 30 can be a complete ring or a ring with a 3/4 or 1/2 gap.

Please refer to Figure 5. When the angle of the host 11 needs to be adjusted along the X-axis, the bracket 20 rotates relative to the host 11, and the connecting ring 30 that is interference-fitted with the second fixing portion 133 and the first rod portion 21 plays a damping and hovering function. When the host 11 is adjusted to a suitable angle, the bracket 20 can maintain a stable angle relative to the host 11.

Please refer to Figures 3 and 4 again. In some embodiments, the projector 100 also includes a baffle 40, which is accommodated in the third area 273. The extension portion 211 and the baffle 40 are abutted on opposite sides of the second fixed portion 133. On the one hand, the extension portion 211 and the baffle 40 can limit the connecting ring 30 in the second area 272. On the other hand, the baffle 40 can also play a role in sealing the accommodating cavity to isolate the connecting ring 30 from the external environment and prevent the connecting ring 30 from oxidizing.

The diameters of the first area 271 , the second area 272 and the third area 273 increase sequentially, which facilitates the disassembly and assembly of the fixing member 13 , the connecting ring 30 and the blocking piece 40 .

It can be understood that the second rod portion 23 is connected to the main body 11 in the same connection manner as the first rod portion 21, which will not be described in detail herein.

In other embodiments, the recessed portion 27 may also be provided on the main body 10, and the fixing member 13 may be accommodated in the recessed portion 27, and the fixing member 13 and the main body 10 may be spaced apart to form a receiving cavity; the connecting ring 30 may be sleeved on the fixing member 13 and abut against the main body 10, and the principle of realizing the rotatable and hovering functions is the same as the working principle of the above-mentioned embodiment, which will not be repeated here.

The projector 100 also includes a base 50, which includes a connecting member (not marked in the figure) and a supporting member (not marked in the figure). The connecting member is detachably fixedly connected to the bracket 20, and the supporting member and the connecting member are rotatably connected along the Z axis (i.e., the second direction). In this embodiment, the first direction is perpendicular to the second direction. In other embodiments, the first direction and the second direction may also be at angles other than perpendicular, i.e., the first direction intersects with the second direction.

Please refer to FIG. 6 . In some embodiments, the base 50 is a desktop base, that is, the projector 100 can be placed on the desktop through the base 50. Specifically, the connecting member is a first base 51, the bearing member is a rotating bottom plate 53, and the first base 51 is fixedly connected to the bracket 20 by plugging. In this embodiment, a groove (not shown) is provided on the third rod portion 25, and the first base 51 includes a plug-in portion 511, which can be inserted into the groove, so that the first base 51 and the third rod portion 25 are relatively fixed, and the first base 51 is fixedly connected to the bracket 20. In other embodiments, the fixing method of the first base 51 and the bracket 20 is not limited to this, and can also be a snap-on connection, a fixed connection using fasteners, etc.

The rotating base plate 53 includes a supporting portion 531 and a rotating portion 533 protruding from the supporting portion 531. The first base 51 can be mounted on the rotating portion 533 and can be rotatably arranged on the rotating portion 533 around the Z axis, so that the bracket 20 relatively fixed to the first base 51 can rotate around the Z axis relative to the rotating base plate 53, and then the main body 10 connected to the bracket 20 can also rotate around the Z axis relative to the rotating base plate 53.

The base 50 may further include a friction sheet 55, which is disposed between the first base 51 and the support portion 531 and sleeved on the rotating portion 533. The two opposite surfaces of the friction sheet 55 both have a certain surface roughness, and the two opposite surfaces of the friction sheet 55 are respectively connected to the surface of the first base 51 and the surface of the support portion 531. Referring to FIG. 7 , the surface of the rotating bottom plate 53 away from the first base 51 may also have a greater surface roughness to increase the damping of the rotation and the desktop, for example, by providing an annular silicone pad 535.

Please refer to Figure 8. When the first base 51 rotates relative to the support portion 531, the friction plate 55 can provide friction resistance to enhance the user's feel when rotating the host 11. When the user adjusts the angle of the host 11 to a suitable angle with the Z axis as the rotation axis, the friction plate 55 and the surface of the first base 51 and the surface of the support portion 531 have resistance, which plays a damping and hovering function. The first base 51 can maintain a stable angle relative to the rotating base plate 53.

9 and 10 , in some embodiments, the base 60 is a floor base, that is, the projector 100 can be placed on the ground through the base 60. Specifically, the connecting member is a second base 61, the bearing member is a floor bracket 63, and the base 60 further includes a sleeve 65 and a locking member 67, and the sleeve 65 is fixedly connected to the floor bracket 63.

Please refer to FIG. 11 , the second base 61 includes a connecting portion 611 and a screw-connecting portion 615. The connecting portion 611 is connected to the bracket 20, and the screw-connecting portion 615 extends from one side of the connecting portion 611 in a direction away from the bracket 20. The connecting portion 611 is provided with a plug-in portion 613 adapted to the groove on the third rod portion 25, that is, the second base 61 and the first base 51 can be replaced with each other, and thus the desktop base and the floor base can be replaced with each other, please refer to FIG. 12 , after the desktop base is replaced with the floor base, the projector 10 can also adjust the angle of the host 11 with the X-axis as the rotation axis.

The sleeve 65 is generally hollow and cylindrical, and a blocking portion 651 is provided at one end of the sleeve 65 adjacent to the second base 61, and the blocking portion 651 is disposed inside the sleeve 65. The threaded portion 615 is penetrated through the blocking portion 651, and the locking member 67 is located on the side of the blocking portion 651 away from the connecting portion 611 and is sleeved on the threaded portion 615, so that the sleeve 65 and the second base 61 are detachably and rotatably connected, thereby enabling the angle of the host 11 to be adjusted with the Z axis as the rotation axis according to actual needs (see FIG. 13), so that the host 11 is at a suitable angle. In this embodiment, the locking member 67 is a nut, and a thread matching the nut is provided on the threaded portion 615. In other embodiments, other detachable and rotatable connections between the sleeve 65 and the second base 61 may also be used.

The floor stand 63 is relatively long, and the sleeve 65 and the floor stand 63 are two elements that can be fixedly connected to each other for easy carrying, assembly or disassembly. In other embodiments, the sleeve 65 and the floor stand 63 can also be an integral structure fixed to each other.

The base 60 may further include an elastic member 68, which is disposed between the locking member 67 and the blocking portion 651. The elastic member 68 may be a spring, elastic rubber, or a spring. When the angle of the host 11 needs to be adjusted along the Z-axis direction, the second base 61 rotates relative to the sleeve 65, and the elastic member 68 has a certain compression or elastic recovery space, so that there is a certain resistance between the second base 61 and the sleeve 65, which plays a damping and suspension function, and the second base 61 can maintain a stable angle relative to the sleeve 65.

Please refer to FIG. 11 again. In some embodiments, the base 60 further includes a plastic member 69, which is sleeved on the threaded portion 615 and located between the sleeve 65 and the connecting portion 611. A plastic member 69a may also be disposed between the floor stand 63 and the sleeve 65. The

plastic members

69 and 69a may play a buffering role and avoid rigid contact between two interconnected components.

It can be understood that the projector 100 is not limited to being placed on a desktop or on the ground, that is, the desktop and the ground are only examples. In other embodiments, the placement of the projector 100 can be changed according to actual usage requirements. For example, the support component can be installed on a wall or a ceiling, and the projection angle adjustment function of the projector 100 can still be achieved; in some embodiments, the rotatable connection methods in the base 50 and the base 60 can also be interchangeable.

Please refer to Figure 14. In some embodiments, the projector 100 also includes a circuit 70 and a functional element. The functional element can be a power switch 71 and a power socket 73 arranged on the bracket 20. The circuit 70 is arranged in the bracket 20 to electrically connect the host 11 and the functional element. The functional element is arranged on the bracket 20, which can reduce the volume of the host 11. The circuit 70 is used to electrically connect the host and the functional element. When the host 11 rotates around the Z axis relative to the

base

50, 60, the bracket 20 and the host 11 are relatively fixed, which will not affect the electrical connection function of the circuit 70. When the host 11 rotates around the X axis relative to the bracket 20, the circuit 70 can have a certain performance of rotating around the X axis, which will not affect the electrical connection function of the circuit 70.

In the projector 100 provided in the embodiment of the present application, the main body 10 and the bracket 20 are rotatably connected via a connecting ring 30, thereby realizing angle adjustment of the projector 100 in a first direction; and the angle adjustment of the projector 100 in a second direction is realized by rotatably connecting the base 50 or the base 60 and the bracket 20. The angle adjustment is convenient and flexible, and can be realized by directly rotating the main body 10, the bracket 20 and/or the base 50 or the base 60.

The above are merely embodiments of the present disclosure, and are not intended to limit the patent scope of the present disclosure. Any equivalent structure or equivalent process transformation made using the contents of the present disclosure and the drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present disclosure.

Claims

A projector, characterized in that the projector comprises a main body, a bracket and a connecting ring; wherein an accommodating cavity is formed between the main body and the bracket, the connecting ring is accommodated in the accommodating cavity, and the connecting ring is interference fit with the main body and the bracket.
The projector according to claim 1 is characterized in that the main body includes a fixing part, the bracket includes a recessed portion, the fixing part is accommodated in the recessed portion, the fixing part and the bracket are spaced apart to form the accommodating cavity; the connecting ring is arranged on the fixing part and abuts against the bracket.
The projector according to claim 2 is characterized in that the fixing member includes a first fixing portion and a second fixing portion, the second fixing portion is arranged around the outer periphery of the first fixing portion; the connecting ring is arranged on the second fixing portion; the projector also includes a baffle, the bracket includes an extension portion, the extension portion and the baffle are abutted on opposite sides of the second fixing portion to close the accommodating cavity.
The projector according to claim 3 is characterized in that the recessed portion is a stepped hole, the recessed portion includes a first area, a second area and a third area which are connected in sequence and have increasing diameters in sequence, the extension portion surrounds and forms the first area, the connecting ring is accommodated in the second area, and the baffle is accommodated in the third area.
The projector according to claim 1 is characterized in that the bracket includes a fixing piece, the main body includes a recessed portion, the fixing piece is accommodated in the recessed portion, the fixing piece and the main body are spaced apart to form the accommodating cavity; the connecting ring is arranged on the fixing piece and abuts against the main body.
The projector according to any one of claims 1 to 5 is characterized in that the bracket includes a first rod portion and a second rod portion, the first rod portion and the second rod portion are respectively arranged on opposite sides of the main body, and the first rod portion is rotatably connected to the main body through the connecting ring, and the second rod portion is rotatably connected to the main body through another connecting ring.
The projector according to claim 1 is characterized in that the projector further comprises a circuit, wherein the circuit is arranged in the bracket and electrically connected to the main body.
A projector, characterized in that it includes a main body, a bracket and a base, wherein the bracket is rotatably connected to the main body along a first direction; the base includes a connecting member and a supporting member, the connecting member is fixedly connected to the bracket, and the supporting member is rotatably connected to the connecting member along a second direction; wherein the first direction intersects with the second direction.
The projector according to claim 8 is characterized in that the projector also includes a connecting ring, a receiving cavity is formed between the main body and the bracket, the connecting ring is accommodated in the receiving cavity, and the connecting ring is interference fit with the main body and the bracket so that the main body can be rotatably connected relative to the bracket.
The projector according to claim 9 is characterized in that the main body includes a fixing part, the bracket includes a recessed portion, the fixing part is accommodated in the recessed portion, the fixing part and the bracket are spaced apart to form the accommodating cavity; the connecting ring is arranged on the fixing part and abuts against the bracket.
The projector according to claim 10 is characterized in that the fixing member includes a first fixing portion and a second fixing portion, the second fixing portion is arranged around the outer periphery of the first fixing portion; the connecting ring is arranged on the second fixing portion; the projector also includes a baffle, the bracket includes an extension portion, the extension portion and the baffle are abutted on opposite sides of the second fixing portion to close the accommodating cavity.
The projector according to claim 11 is characterized in that the recessed portion is a stepped hole, the recessed portion includes a first area, a second area and a third area which are connected in sequence and have increasing diameters in sequence, the extension portion surrounds and forms the first area, the connecting ring is accommodated in the second area, and the baffle is accommodated in the third area.
The projector according to claim 9 is characterized in that the bracket includes a fixing piece, the main body includes a recessed portion, the fixing piece is accommodated in the recessed portion, the fixing piece and the main body are spaced apart to form the accommodating cavity; the connecting ring is arranged on the fixing piece and abuts against the main body.
The projector according to any one of claims 9 to 13 is characterized in that the bracket includes a first rod portion and a second rod portion, the first rod portion and the second rod portion are respectively arranged on opposite sides of the main body, and the first rod portion is rotatably connected to the main body through the connecting ring, and the second rod portion is rotatably connected to the main body through another connecting ring.
The projector according to claim 14 is characterized in that the bracket further includes a third rod portion, the third rod portion is arranged between the first rod portion and the second rod portion, and the base is detachably and rotatably connected to the third rod portion.
The projector according to claim 15 is characterized in that the connecting member is a first base, the supporting member is a rotating base plate, the first base is detachably fixedly connected to the third rod portion, the rotating base plate includes a supporting portion and a rotating portion protruding from the supporting portion, and the first base is sleeved on the rotating portion and can be rotatably arranged on the rotating portion.
The projector according to claim 16 is characterized in that the base further comprises a friction plate, and the friction plate is arranged between the first base and the supporting part and is sleeved on the rotating part.
The projector according to claim 15 is characterized in that the connecting member is a second base, the supporting member is a floor stand, the base further includes a sleeve and a locking member, the sleeve includes a blocking portion, the second base is inserted into the blocking portion and the second base is detachably fixed to the sleeve by the locking member.
The projector according to claim 18, characterized in that the base further comprises an elastic member, and the elastic member is disposed between the locking member and the blocking portion.
The projector according to claim 18 is characterized in that the base also includes a plastic part, the second base includes a connecting portion and a screw-connecting portion, the screw-connecting portion extends from one side of the connecting portion toward the sleeve, the screw-connecting portion is also penetrated by the plastic part, and the plastic part is located between the sleeve and the connecting portion.