KR101217306B1 - Small size projector with folding structure - Google Patents

Abstract

PURPOSE: A small sized beam projector of a foldable structure is provided to enhance a storage-ability and portability with foldable wings and improve cooling efficiency by radiating heat through the large wings. CONSTITUTION: A small sized beam projector comprises a cylindrical engine body(110), a left wing(120), a right wing(130), and a motion input unit(140). A projection unit(160) is installed in a front surface of the engine body and a space is formed in the inside of the engine body. The left wing is installed in a left side of the engine body as a form in which a rear surface of the engine body is partly opened. The right wind is installed in a right side of the engine body as a form in which the rear surface of the engine body is partly opened. The motion input unit is installed in the rear surface of the engine body and inputs motions performed by the projector.

Description

Small beam projector with folding structure {Small size projector with folding structure}

The present invention relates to a beam projector, and in detail, the shape is made of a main body and wings, and has a stylish and simple design suitable for home use, and has a foldable structure that not only increases portability by reducing the volume by folding the wings, but also facilitates storage. Relates to a small beam projector.

Optical projectors are designed to implement small images on a large screen using optical means. Depending on the type of device that implements the images, the CRT (Cathode Ray Tube) projection, LCD (Liquid Crystal Display) projection, and DLP (Digital Light Processing) projection Can be divided in a way.

CRT projection method is the oldest method that reflects a small high-definition CRT to a mirror to form a screen image. The LCD projection method sends an external playback video signal to the projection TV, and the small LCD screen inside the projection TV receives the image. After reproducing, the image on the screen is shot with strong light from behind the LCD screen to magnify the screen through the lens, and reflected on the mirror to project on the screen.

The DLP projection method operates by expanding and projecting an image signal received from the outside using a DMD 153 (Digital Mirror Device) semiconductor chip in which hundreds of thousands of fine driving mirrors are integrated.

In the past, such a projector is relatively large in size and high in price, and has been mainly used only for teaching in schools or for presentations in a company. However, the size of the projector has recently become smaller and the price is lowered.

However, the existing projectors have a problem of deteriorating aesthetics even when they are stored or carried, as well as not being suitable for a home or office where a stylish interior is applied because they are made of a clunky design in the shape of a square box, which focuses on functions rather than a design.

In addition, the projector is provided with a cooling structure because the heat generation is severe due to the characteristics of the device, the conventional projector has a rectangular structure, the heat dissipation area is relatively small, the cooling efficiency is not only reduced, but also due to the structure for cooling, the volume has a problem.

The present invention was created to solve the above problems, the object of the present invention is to apply a stylish and clean design resembling the appearance of the insect with a torso and wings to enhance the aesthetics and harmonize well with the interior. It is to provide a small beam projector having a foldable structure to fold both wings to increase storage and portability, the heat dissipation through a large area of the wing to increase the cooling efficiency.

Small beam projector 100 having a foldable structure of the present invention to achieve the above object, the small beam projector, the projection unit 160 is installed on the front and the cylindrical engine body 110 having a space therein; A left wing 120 having a space formed therein and installed in a shape in which a rear surface of the engine main body 110 is partially opened to the left side of the engine main body 110 and configured to rotate in a downward direction; A right wing 130 having a space formed therein and installed in a shape in which a rear surface of the engine main body 110 is partially opened to the right side of the engine main body 110 and configured to rotate in a downward direction; Is installed on the rear of the engine body 110, the operation input unit 140 for inputting the operation performed by the projector; including, but the left wing 120 and the right wing 130 are both sides of the engine body 110 When it is unfolded to the space inside the engine body 110 and the left wing 120 and the right wing 130 and the space is connected to form a single storage space 112, the storage space 112 inside And a main circuit board 150 including a flexible printed circuit connected to the side of the driving element 113 and contacting an upper surface of the driving element 113 to be generated from the driving element 113. It characterized in that it comprises a heat dissipation unit for cooling the heat.

At this time, the opening 111 formed at each of the left and right sides of the engine body and the right side of the left wing 120 having the right side are installed to slide and rotate while surrounding the outer circumferential surface of the engine body. Ring 121 and the left side of the left wing of the right wing 130 is installed so as to slide around the outer peripheral surface of the engine body to rotate and may further comprise a second connection ring 131, the left side is open. have..

In addition, the outlet 122 formed in the front portion of the left wing 120 and the right wing 130, the inlet 123 formed on the lower side of the left wing 120 and the right wing 130, and the inlet 123 The air sucked through the air may further include a cooling fan 124 installed to pass through the receiving space 112 to be discharged through the outlet 122.

In addition, the heat dissipation plate 125 installed in the inner receiving space 112 of the left wing 120 or the right wing 130, and the heat conductor 126 connecting the heat dissipation unit 114 and the heat dissipation plate 125 It can be made to include more.

The operation input unit 140 may be connected to the engine body so as to rotate in a vertical or horizontal direction and in a vertical or horizontal direction.

In this case, the operation input unit 140 is preferably implemented as a touch screen.

In addition, the left wing 120 and the right wing 130 may be made to further include a speaker 132 which is installed to be exposed or accommodated by the slide movement, respectively.

In addition, the left wing 120 and the right wing 130 may be made to further include a wing leg 133 is folded and accommodated to the front lower side and configured to adjust the height.

In addition, the engine main body 110 may further include a main body leg 115 having a joint structure in which the middle is bent and configured to be height-adjustable.

At this time, it is preferable that the joint structure of the main leg 115 further includes an adjustment screw 116 that can adjust the force required to move the joint structure.

Through a compact beam projector having a foldable structure of the present invention described above through a stylish and clean design resembling the appearance of insects, it can be well matched with the interior interior to provide aesthetics and satisfy various tastes of the user.

In addition, storage and portability are increased through the foldable wings, heat dissipation through a large area of the wings can increase the cooling efficiency to increase the life of the device.

1 is a perspective view showing the external appearance of a small beam projector having a foldable structure according to an embodiment of the present invention,
Figure 2 is a front view showing the appearance of a small beam projector having a folding structure according to a preferred embodiment of the present invention,
Figure 3 is a side view showing the external appearance of a small beam projector having a foldable structure according to an embodiment of the present invention,
Figure 4 is a perspective view showing the two wings folded of the small beam projector having a folding structure according to an embodiment of the present invention,
5 is a rear view showing the external appearance of a small beam projector having a folding structure according to a preferred embodiment of the present invention,
6 is an exploded perspective view showing an exploded structure of a small beam projector having a folding structure according to an embodiment of the present invention,
7 is a perspective view showing the internal structure of a small beam projector having a foldable structure according to an embodiment of the present invention,
8 is a layout view schematically illustrating a configuration of the main circuit board 150.

Hereinafter, a configuration of a small beam projector 100 having a folding structure according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the appearance of a small beam projector having a folding structure according to a preferred embodiment of the present invention, Figure 2 is a front view showing the appearance of a small beam projector having a folding structure according to a preferred embodiment of the present invention 3 is a side view showing the external appearance of a small beam projector having a foldable structure according to a preferred embodiment of the present invention, Figure 4 is a view showing the folded both wings of the small beam projector having a foldable structure according to an embodiment of the present invention. 5 is a rear view illustrating an external appearance of a small beam projector having a foldable structure according to an exemplary embodiment of the present invention.

The present invention is made to resemble the appearance of the insect having a body and wings are provided with a lying cylindrical engine body 110 corresponding to the body of the insect, the engine body 110 left and right respectively Wing 120 and the right wing 130 is installed. At this time, both the engine body 110, the left wing 120 and the right wing 130 has a space formed therein, the space of the left wing 120 and the space of the right wing 130 and the space of the engine body is connected to each other To form a single storage space (112).

The left wing 120 and the right wing 130 is configured to rotate the engine body to the lower side, respectively, as shown in Figures 1 to 3 when using a small projector having a folding structure of the present invention. The left wing 120 and the right wing 130 is horizontally centered around the engine body so that the insect is spreading the wings, the left wing 120 and as shown in Figure 4 during storage or transport Rotating the right wing 130 to the lower side so that it can be folded in half around the engine body as a whole.

A projection unit 160 for projecting an image is installed at the front of the engine main body, and an operation input unit 140 is installed at the rear of the engine main body. When the left wing 120 and the right wing 130 is extended to both sides to cover the engine body 110, so that the user can check and operate the operation input unit 140, the left wing 120 and the right The wing 130 is formed to partially open the rear surface of the engine body 110 as shown in FIG. 4.

6 is an exploded perspective view showing an exploded structure of a small beam projector having a foldable structure according to an embodiment of the present invention.

Referring to Figure 6 specifically describes the coupling structure of the engine body, the left wing 120 and the right wing 130, the opening 111 is connected to the internal space of the engine body on the left and right of the engine body, respectively do. In addition, the right side of the left wing 120 is opened to be installed so as to slide around the outer circumferential surface of the engine body and the first connection ring 121 is opened to the right side is formed to form the first connection ring 121 Through the left wing 120 and the engine body is coupled through the space of the engine body and the space of the left wing 120 is connected to each other. Similarly, the left side of the left wing of the right wing 130 is installed so as to slide around the outer circumferential surface of the engine body and is rotated and the second connection ring 131 is formed on the left side of the second connection ring 131. Through the engine body and the right wing 130 is coupled, as a result, the space of the engine body and the space of the right wing 130 and the space of the left wing 120 is connected to form a single storage space (112). In this case, the first connection ring 121 and the second connection ring 131 are disposed not to interfere with each other.

The operation input unit 140 coupled to the rear of the engine main body is a switch unit for inputting a signal for controlling the projector by the user, and is electrically connected to the main circuit board 150. The operation input unit 140 has a horizontally wide plate shape so that the user can easily press it, and is configured to rotate vertically when the left wing 120 and the right wing 130 are rotated downward. In detail, the connection unit of the engine body and the operation input unit 140 is configured such that the operation input unit 140 rotates in the vertical direction or the left and right directions, and rotates in the vertical or horizontal direction. 100) when storing or carrying it may be located between the left wing 120 and the right wing 130 to prevent damage.

More preferably, the motion input unit 140 may be implemented as a touch screen to match the appearance design of the present invention and to fit the latest digital trend.

7 is a perspective view showing the internal structure of a small beam projector having a foldable structure according to an embodiment of the present invention.

The main circuit board in which the driving element 113 is connected to one side of the accommodating space 112, in which the space inside the engine body and the space inside the left wing 120 and the space inside the right wing 130 are connected ( 150) is installed. In this case, the main circuit board 150 includes a flexible printed circuit, partly in consideration of the coupling of the left wing 120 and the right wing 130 to rotate the engine body in the shaft. That is, the general circuit board is installed in the left wing 120 and the right wing 130 and the space inside the main body, respectively, the connecting portion of the main body and the left wing 120 and the connection of the main body and the right wing 130 is flexible It consists of a printed circuit so that the left wing 120 and the right wing 130 rotate smoothly.

A flexible printed circuit is a circuit board formed with a complicated circuit on a flexible insulating film, and can be bent using heat-resistant plastic film such as polyester (polyester) or polyimide (pi), which enables flexible wiring and miniaturization and light weight. Recently, it is widely used in areas where bending, overlapping, folding, curling, and twisting occur in video cameras, car stereos, and head parts of computers and printers.

The main circuit board 150 includes a DMD 153 (Digital Mirror Device) assembly, an illumination optical system 155, and a projection unit 160, which form a light source 151 and an image reproduction unit 152, like a general beam projector. And one side is connected to the drive element 113 for controlling the overall operation of the projector.

FIG. 8 is a layout view schematically showing the configuration of the main circuit board 150. The configuration of the main circuit board 150 will be described with reference to the following.

The light source 151 includes R, G, and B light emitters that irradiate R, G, and B light, respectively.

The image reproducing unit 152 reproduces the light irradiated from the light source 151 into the light required for image expression and is composed of a DMD assembly 154 including a DMD 153 (Digital Mirror Device).

The illumination optical system 155 divides the dichroic mirror 156 (Dichoric Mirror) for transmitting and reflecting light of a specific wavelength band and the light emitted from the light source 151 into a specific unit to be focused on a specific portion. A fly-eye lens 157, a reflection mirror 158 reflecting light split into cells through the fly-eye lens 157, to the field lens 159, and reflected through the reflection mirror 158. And a field lens 159 for condensing light onto the DMD 153 of the DMD assembly 154.

The projection unit 160 projects light modulated by the DMD 153 into light required for image representation, and includes a plurality of lens groups.

The components constituting the main circuit board 150 described above are fixed to operate properly even if the main circuit board 150 is bent and unfolded.

At this time, the heat dissipation unit 114 for cooling the heat generated from the driving element 113 is installed on the upper side of the drive element 113, and a plurality of heat dissipation fins are formed on the surface of the heat dissipation unit 114 to improve the cooling efficiency. .

In order to smoothly cool the driving device 113 and the main circuit board 150, the left wing 120 and the right wing 130 may have a structure in which air is sucked out. Specifically, the outlets 122 connected to the inner receiving space 112 are respectively installed on the front side of the left wing 120 and the right wing 130, and the left wing 120 and the right wing 130 are lowered. Install the inlet 123 connected to the inner receiving space 112, respectively. In addition, the cooling fan 124 is installed in each of the left wing 120 and the right wing 130 so that air is sucked through the inlet 123 and passed through the receiving space 112 to be discharged through the outlet 122. Done.

In this case, the heat dissipation plate 125 having a plurality of heat dissipation fins is installed in the inner storage space 112 of the left wing 120 or the right wing 130, and the heat dissipation unit 114 and the heat dissipation fin have excellent thermal conductivity ( 126) to maximize the cooling effect through a large cooling area.

Small beam projector 100 having a foldable structure of the present invention is the speaker below the left wing 120 and the right wing 130 as shown in Figure 5 so that the projector itself can provide sound without a separate sound equipment 132 can be installed. To this end, an external audio output signal is input through the main circuit board 150 and configured to be output through the speaker 132. In this case, when the speaker 132 is not used, the left wing 120 and the right wing 130 are respectively accommodated, and when the speaker 132 is used, the left wing 120 and the right wing 130 are exposed to the outside, respectively. Preferably, the speaker 132 is installed to slide on the left wing 120 and the right wing 130, respectively.

The wing leg 133 is installed below the left wing 120 and the right wing 130 to adjust the projected screen position after the projector is installed. The wing leg 133 is configured to be accommodated by rotating the left wing 120 and the right wing 130, respectively, it is provided with a height adjusting means. The height adjustment means may be implemented in a variety of ways, but may be implemented to adjust the overall length by overlapping two cylinders of different diameters in the same way as the antenna that can adjust the length.

In addition, the main body 115 is installed below the engine main body 110 so as to more precisely adjust the projected screen position and the small beam projector 100 having the folding structure of the present invention is firmly fixed to the floor. The main leg 115 is preferably configured to have a joint structure in which the middle is rotated so that the height can be adjusted similarly to the wing leg 133.

At this time, by installing the adjustment screw 116 to the joint structure of the main leg 115, it may be configured to adjust the force required to move the joint structure by tightening or releasing the adjustment screw 116. That is, tightening the adjusting screw 116 will require a relatively large force for the user to move the joint structure, and loosening the adjusting screw 116 will require a relatively small force for the user to move the joint structure.

Although the present invention has been described with reference to the preferred embodiments thereof with reference to the accompanying drawings, it will be apparent to those skilled in the art that various modifications may be made without departing from the scope of the present invention. The scope of the invention should, therefore, be construed in light of the claims set forth to cover all such variations.

100: small beam projector with a foldable structure
110: engine body 111: opening
112: storage space 113: drive element
114: heat dissipation unit 115: main leg
116: adjusting screw 120: left wing
121: first connection ring 122: outlet
123: suction port 124: cooling fan
125: heat sink 126: thermal conductor
130: right wing 131: second connection ring
132: speaker 133: wing leg
140: operation input unit 150: main circuit board
151: light source 152: image reproduction unit
153: DMD 154: DMD Assembly
155: illumination optical system 156: dichroic mirror
157: fly's eye lens 158: reflection mirror
159: field lens 160: projection unit

Claims (10)

In the small beam projector,
A cylindrical engine body 110 having a projection unit 160 installed on a front surface thereof and having a space formed therein;
A left wing 120 having a space formed therein and installed in a shape in which a rear surface of the engine main body 110 is partially opened to the left side of the engine main body 110 and configured to rotate in a downward direction;
A right wing 130 having a space formed therein and installed in a shape in which a rear surface of the engine main body 110 is partially opened to the right side of the engine main body 110 and configured to rotate in a downward direction;
Is installed on the rear of the engine body 110, the operation input unit 140 for inputting an operation performed by the projector;
When the left wing 120 and the right wing 130 is extended to both sides of the engine body 110, the space inside the engine body 110 and the inside of the left wing 120 and the right wing 130 is connected to the space Is configured to form a single storage space 112,
A main circuit board 150 installed in the storage space 112 and including a flexible printed circuit connected to a driving device 113 at a side thereof;
Small beam projector having a foldable structure, characterized in that it comprises a heat dissipation unit in contact with the upper side of the drive element 113 to cool the heat generated from the drive element (113).
The method of claim 1,
Openings 111 formed at left and right sides of the engine body, respectively;
A first connection ring 121 installed so as to slide around the outer circumferential surface of the engine main body to the right side of the left wing 120 having the right open and the right side opened;
The left side of the left wing of the right wing 130 is installed so as to slide around the outer circumferential surface of the engine body is rotated and the folding structure characterized in that it further comprises a second connection ring 131, the left side is open. Having a compact beam projector.
The method of claim 1, wherein
Outlet 122 formed in the front portion of the left wing 120 and the right wing 130,
A suction port 123 formed below the left wing 120 and the right wing 130,
It has a folding structure characterized in that it further comprises a cooling fan 124 is installed so that the air sucked through the inlet 123 passes through the receiving space 112 and is discharged through the outlet (122) Compact beam projector.
The method of claim 3,
A heat sink 125 installed in the inner storage space 112 of the left wing 120 or the right wing 130;
Small beam projector having a folding structure, characterized in that further comprises a heat conductor (126) for connecting the heat dissipation unit and the heat dissipation plate (125).
delete The method of claim 1,
The operation input unit 140 is a small beam projector having a foldable structure, characterized in that implemented as a touch screen.
The method of claim 1,
Small beam projector having a foldable structure characterized in that it further comprises a speaker (132) which is installed so that the left wing (120) and the right wing (130) slides to be exposed or stored.
The method of claim 1,
Small beam projector having a foldable structure, characterized in that the left wing (120) and the right wing (130) is folded and received in the lower side of the front side, and further comprises a wing leg (133) configured to adjust the height.
The method of claim 1,
Small beam projector having a foldable structure, characterized in that the engine body further comprises a main body (115) configured to be adjustable in height and has a joint structure that is bent to the lower side.
10. The method of claim 9,
The joint structure of the main leg (115) is a small beam projector having a foldable structure, characterized in that further comprises an adjustment screw (116) to adjust the force required to move the joint structure.

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