WO2017080405A1

WO2017080405A1 - Projector

Info

Publication number: WO2017080405A1
Application number: PCT/CN2016/104711
Authority: WO
Inventors: 邓毅; 吴希亮; 李屹
Original assignee: 深圳市绎立锐光科技开发有限公司
Priority date: 2015-11-11
Filing date: 2016-11-04
Publication date: 2017-05-18
Also published as: TWM535823U; CN205176464U

Abstract

Disclosed is a projector, comprising a projection lens (110), a lens panel (120) and a lens cover device. The lens panel (120) is provided with a lens hole (122) corresponding to the projection lens (110). The lens cover device comprises a lens cover piece (130) and a connecting component (140). One end of the lens cover piece (130) is detachably connected to the lens panel (120) through the connecting component (140). The lens cover piece (130) can rotate by more than 360 degrees with the position connected to the connecting component (140) as the centre. The distance between the lens hole (122) and the position of the lens cover piece (130) connected to the connecting component (140) is less than the length of the lens cover piece (130). The projector has an adjustable projection angle and is convenient to use, and the thickness of the whole machine is not increased.

Description

Projector

Technical field

The utility model relates to the field of projection technology, in particular to a projector.

Background technique

A projector is a device that projects an image or video onto a screen. With the development of projection technology, projectors have been widely used in homes, offices, schools and other places.

technical problem

In order to adjust the angle of the projected image to completely project the image onto the fixed screen, the conventional projector usually has an adjustable height support leg or bracket at the bottom of the projector, which obviously increases the thickness of the whole machine. The development of ultra-thin projectors is limited; in addition, the lens of a conventional projector is either directly exposed or a separate lens cover is used, and the exposed lens is liable to damage the lens, and the separate lens cover is inconvenient to use. In addition, in the prior art, even if a projector is provided with a lens cover that can serve as a bracket, it can only be rotated in one direction, so that if the user is used to rotating in another direction, it cannot be satisfied, which may also cause inconvenience in use. problem.

Technical solution

Based on this, it is necessary to provide a projector that can adjust the projection angle, is convenient to use, and does not increase the thickness of the whole machine.

A projector comprising:

Projection lens

a lens panel having a lens aperture corresponding to the projection lens;

a lens cover device comprising a lens cover sheet and a connecting member, one end of the lens cover sheet being detachably coupled to the lens panel by the connecting member; wherein the lens cover sheet can be connected to the connecting member The position is centered to achieve a rotation of more than 360 degrees, and a distance between the lens hole and a position at which the connecting member is coupled to the lens cover sheet is smaller than a length of the lens cover sheet.

In one embodiment, the connecting component comprises a rotating shaft, a fixing piece, a socket type elastic piece and a compression nut, and the lens panel is correspondingly provided with a shaft hole and a mounting hole, one end of the rotating shaft and the lens The cover sheet is fixedly connected, and the other end of the rotating shaft passes through the fixing piece, the socket type elastic piece and the shaft hole, and then is pressed by the pressing nut, and the fixing piece is provided with a through hole, and the fixing piece is provided. The fixing is performed by screwing through the through hole and the mounting hole in sequence.

In one embodiment, the connecting member further includes a first gasket and a second gasket, the first gasket is disposed between the lens cover sheet and the fixing sheet, and the second gasket The number is 2, which is respectively disposed between the socket-shaped elastic piece and the compression nut, between the socket-shaped elastic piece and the fixed piece.

In one embodiment, the number of the nested shrapnel is greater than or equal to two.

In one embodiment, the lens cover sheet is an integrally formed single part structure or the lens cover sheet is integrally formed with the rotating shaft.

In one of the embodiments, a power controller is further included for controlling powering off or powering the projector.

In one embodiment, the power controller is a light sensor switch, and the light sensor switch is disposed outside the lens panel or disposed in the lens hole for shielding the lens cover sheet When the lens aperture is in the power-off state, the control power supply is in a power supply state when the lens cover sheet and the lens aperture are staggered.

In one embodiment, the power controller is a mechanical trigger switch, and the mechanical trigger switch is disposed outside the lens panel for controlling the power source when the lens cover sheet presses the mechanical trigger switch In the power-off state, the control power source is in a power supply state when the lens cover sheet is removed to cause the mechanical trigger switch to pop out.

In one embodiment, the lens cover sheet has an arc shape away from an end edge of the connecting member, or an edge of both ends of the lens cover sheet has an arc shape.

In one embodiment, the lens panel is further provided with a heat dissipation hole.

Beneficial effect

The above projector is provided with a lens cover device including a lens cover sheet and a connecting member, wherein the lens cover sheet can rotate more than 360 degrees centering on a position to be connected to the connecting member, and the lens hole and the lens hole The distance between the position where the connecting member is connected to the lens cover sheet is smaller than the length of the lens cover sheet. When the projector is not required, the lens cover sheet can be rotated to a position where the lens hole can be blocked, and the projection lens is not directly exposed. It is not easy to damage; when the projector is needed, the lens cover can be rotated to any position that is offset from the lens hole, and the projection angle is adjusted according to the rotation angle, which is equivalent to adjusting the lens cover and the angle of the lens. The supporting legs are integrated into one body, and it is not necessary to additionally install a supporting leg or a bracket for adjusting the projection angle at the bottom of the projector, which greatly reduces the thickness of the whole machine, and is also very convenient to use.

DRAWINGS

1 is a schematic view showing a lens cover of a projector blocking a lens hole in an embodiment;

2 is a schematic view showing the lens cover sheet of the projector and the lens hole being staggered according to an embodiment;

Figure 3 is a schematic exploded view of the projector in an embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION

The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Please refer to FIG. 1 and FIG. 2 , which are schematic diagrams showing the lens cover sheet of the projector blocking the lens hole and the lens cover sheet and the lens hole being staggered according to an embodiment of the present invention.

The projector in this embodiment includes a projection lens 110, a lens panel 120, and a lens cover device. Here, the lens panel 120 refers to a panel in which a lens hole 122 is provided in a casing of the projector. The projector further includes components such as a control board, a light source, etc., for converting the received signal source into a corresponding image and projecting on the screen. The working principle of the projector is well known to those skilled in the art and will not be described herein.

Please also refer to FIG. 3 at the same time as an exploded view of the projector in an embodiment.

The lens cover device includes a lens cover sheet 130 and a connecting member 140, and one end of the lens cover sheet 130 is detachably coupled to the lens panel 120 through a connecting member 140. In this way, after the lens cover sheet 130 is damaged, it is not necessary to perform an overall replacement, and only the lens cover sheet 130 needs to be removed for replacement, which is convenient for maintenance and saves cost. The lens cover sheet 130 can rotate more than 360 degrees centering on the position connected to the connecting member 140, so that the lens cover sheet 130 can rotate freely in the forward and reverse directions, and is more convenient to use. In addition, the distance between the lens hole 122 and the position where the connecting member 140 is connected to the lens cover sheet 130 is smaller than the length of the lens cover sheet 130. In this way, it is ensured that the lens cover sheet 130 can completely block the lens hole 122 when rotated to a certain position. The lens cover sheet 130 is rotated about a axis in a fixed plane that is perpendicular to the lens panel 120, and the connecting member 140 is located on the axis that is parallel to the plane of the lens panel 120.

In the non-use state, one end of the lens cover sheet 130 blocks the lens hole 122 to protect the lens 110, and the width of the lens cover sheet 130 is smaller than the height of the projector, so that it does not increase in the non-use state. The thickness of the whole machine; in use, by rotating the lens cover sheet 130 to be displaced from the lens hole 122, the lens cover sheet 130 can also serve as a support while opening the lens hole 122. The connecting member 140 is used to provide the lens cover sheet 130 with a force to be positioned at a preset position, that is, the lens cover sheet 130 is rotated only under the action of an external force to ensure the reliability of the lens cover sheet 130 to achieve the supporting function. In addition, the projection elevation angle of the lens 110 with respect to the horizontal plane is adjusted by rotating the lens cover sheet 130 to different positions under the action of an external force.

In one embodiment, the end surface of the lens cover sheet 130 away from the connecting member 140 is arcuate, or the edges of both ends of the lens cover sheet 130 are arcuate. In this embodiment, in order to make the lens cover sheet more beautiful, the two ends of the lens cover sheet 130 are symmetrically designed, that is, the edges of both ends of the lens cover sheet 130 are arc-shaped. The edges of the ends of the lens cover sheet 130 are arcuate so that the lens cover sheet 130 is more stable when supported.

The connecting member 140 includes a rotating shaft 142, a fixing piece 144, a socket type elastic piece 146 and a pressing nut 148. The lens panel 120 is correspondingly provided with a shaft hole 124 and a mounting hole 152. One end of the rotating shaft 142 is fixedly connected to the lens cover sheet 130, and the other end of the rotating shaft 142 is sequentially pressed through the fixing piece 144, the socket type elastic piece 146, and the shaft hole 124, and then pressed by the pressing nut 148. The fixing piece 144 is provided with a through hole 128, and the fixing piece 144 is sequentially fixed through the through hole 128 and the mounting hole 152 by screws. It can be understood that the rotating shaft 142 is parallel to the axis of the lens hole 122.

Here, the compression nut 148 refers to a nut that can cause the socket type elastic piece 146 and the fixing piece 144 to generate a tight frictional force. The socket-shaped elastic piece 146 is provided with a through hole in the middle, and the periphery is diffused outwardly around the through hole to form a bell-like socket. Here, by using the pressing nut 148 to press, the socket type elastic piece 146 and the fixing piece 144 generate a tight friction force, so that the lens cover piece 130 can withstand a certain supporting force to rotate, and the lens cover piece 130 can be forward and reverse 360. More than the degree of rotation about the axis of rotation 142. Here, the tight friction between the socket type elastic piece 146 and the fixing piece 144 is proportional to the supporting force that the lens cover piece 130 can withstand. By rotating the compression nut 148, the socket-shaped elastic piece 146 and the fixing piece 144 can be adjusted to generate a tight frictional force.

In use, by freely rotating the lens cover sheet 130 to a desired position to change the projector's vertical viewing angle in the vertical direction, the lens cover sheet 130 can be adjusted to a position that can block the lens hole 122 when not in use. It functions to protect the lens 110.

In addition, the connecting member 130 further includes a first spacer 154 and a second spacer 156. The first spacer 154 is disposed between the lens cover sheet 130 and the fixing piece 144, and the number of the second spacers 156 is 2, respectively Between the socket type elastic piece 146 and the compression nut 148, between the socket type elastic piece 146 and the fixing piece 144. The arrangement of the first spacer 154 and the second spacer 156 can further serve as a fastening.

In the present embodiment, the number of the socket-shaped elastic pieces 146 is two. It can be understood that in other embodiments, the number of the socket-shaped elastic pieces 146 can be increased according to actual conditions.

In one embodiment, the lens cover sheet 130 is an integrally formed unitary structure or the lens cover sheet 130 is integrally formed with the rotating shaft 142.

Further, the projector further includes a power controller (not shown) for controlling powering off or powering the projector.

Specifically, the power controller is a light sensor switch, and the light sensor switch is disposed outside the lens panel 120 or disposed in the lens hole 122. When the lens cover sheet 130 blocks the lens hole 122, the lens cover sheet 130 also The light-sensing switch is blocked, thereby reducing the brightness of the light received by the light-sensing switch to control the power-off state; when the lens cover sheet 130 and the lens hole 122 are staggered, the light-sensing switch receives an increase in brightness to control the power supply. status.

Alternatively, the power controller is a mechanical trigger switch, and the mechanical trigger switch is disposed outside the lens panel 120. When the lens cover 130 presses the mechanical trigger switch, the control power is in a power-off state, and the lens cover 130 is The control power is in a power supply state when the mechanical trigger switch is ejected. Thus, the lens cover sheet 130 is also equivalent to the function of the power switch, and the operation of the linkage control mode is more convenient, and at the same time, it is beneficial to save power. It can be understood that in other embodiments, the power controller is not limited to the light sensor switch and the mechanical trigger switch, and may be any switch that can be triggered when the position of the lens cover sheet 130 is changed, such as a capacitive proximity switch, etc. Strict restrictions.

In one embodiment, the lens panel 120 is further provided with a heat dissipation hole 160.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-mentioned embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the utility model. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A projector, comprising:

Projection lens

a lens panel having a lens aperture corresponding to the projection lens;

2. The projector according to claim 1, wherein the connecting member comprises a rotating shaft, a fixing piece, a socket type elastic piece and a compression nut, and the lens panel is provided with a shaft hole and a mounting hole, respectively. One end of the rotating shaft is fixedly connected to the lens cover sheet, and the other end of the rotating shaft sequentially passes through the fixing piece, the socket type elastic piece and the shaft hole, and then is pressed by the pressing nut, and the fixing piece is mounted on the fixing piece. A through hole is provided, and the fixing piece is fixed through the through hole and the mounting hole by screws in sequence.

3. The projector according to claim 2, wherein the connecting member further comprises a first spacer and a second spacer, the first spacer being disposed on the lens cover sheet and the fixing piece The number of the second spacers is two, which are respectively disposed between the socket-shaped elastic piece and the compression nut, between the socket-shaped elastic piece and the fixed piece.

4. A projector according to claim 2, wherein the number of said dome-shaped shrapnel is greater than or equal to two.

The projector according to claim 2, wherein the lens cover sheet is an integrally formed single part structure or the lens cover sheet is integrally formed with the rotating shaft.

The projector according to any one of claims 1 to 5, further comprising a power controller for controlling powering off or powering the projector.

The projector according to claim 6, wherein the power controller is a light sensor switch, and the light sensor switch is disposed outside the lens panel or disposed in the lens hole for The control power source is in a power-off state when the lens cover sheet blocks the lens hole, and the control power source is in a power supply state when the lens cover sheet and the lens hole are staggered.

The projector according to claim 6, wherein the power controller is a mechanical trigger switch, and the mechanical trigger switch is disposed outside the lens panel for pressing on the lens cover When the mechanical trigger switch is turned on, the control power source is in a power-off state, and the control power source is in a power supply state when the lens cover sheet is removed to cause the mechanical trigger switch to pop out.

The projector according to any one of claims 1 to 5, wherein the lens cover sheet has an arc shape away from an end edge of the connecting member, or an edge of both ends of the lens cover sheet It has an arc shape.

The projector according to any one of claims 1 to 5, wherein the lens panel is further provided with a heat dissipation hole.