CN220603833U - Projector with a light source for projecting light - Google Patents

Abstract

The application relates to a projector, the projector includes casing and camera subassembly. The inside installation cavity that is equipped with of casing is equipped with a plurality of louvres and a logical unthreaded hole with installation cavity intercommunication on the casing. The plurality of radiating holes are arranged around the light passing hole, and the plurality of radiating holes extend along the first direction. The light-transmitting holes are gradually expanded from inside to outside. The camera assembly comprises a lens arranged on one side of the light passing hole away from the mounting cavity and a camera arranged in the mounting cavity, and the camera is arranged opposite to the light passing hole along the first direction. The light-passing hole is gradually expanded from inside to outside, so that the radial dimension of the light-passing hole is gradually expanded from inside to outside, the camera has more excellent shooting visual angle, and a projection picture can be completely shot. And the light through hole is not a conventional cylindrical hole, so that a user can hardly observe a larger circular hole outside, but can only see the shape of the light through hole near one side port of the mounting cavity, and the light through hole is difficult to easily find.

Description

Projector with a light source for projecting light

Technical Field

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

Background

With the rapid development of projection technology, the current projector has already had an image correction function, and the projector can automatically correct the projection deviation through the image correction function. In practice, a conventional projector generally shoots a currently projected picture through a camera, then analyzes and judges whether the currently projected picture is normal, and performs corresponding adjustment. However, in order to completely capture a projection image, a camera of a conventional projector is generally provided with a large light-transmitting hole on a housing, which affects the appearance of the projector.

Disclosure of Invention

Based on this, it is necessary to provide a projector aiming at the problems that the camera of the conventional projector is generally provided with a large light-transmitting hole in the housing and affects the appearance of the projector in order to completely shoot the projection picture.

According to a first aspect of the present application, there is provided a projector comprising:

a housing having an installation cavity therein; the shell is provided with a plurality of radiating holes and a light-passing hole, wherein the radiating holes are communicated with the mounting cavity, the radiating holes are arranged around the light-passing hole, and the radiating holes extend along a first direction; the light passing holes are gradually expanded from inside to outside; and

the camera assembly comprises a lens arranged on one side, deviating from the installation cavity, of the light-passing hole and a camera arranged in the installation cavity, and the camera is arranged opposite to the light-passing hole along the first direction.

In one embodiment, the light through hole includes a first port near the mounting cavity and a second port far from the mounting cavity, the first port being the same shape and size as the mouth of the heat dissipation hole.

In one embodiment, the lens includes a light-transmitting portion in a middle portion thereof, the light-transmitting portion is disposed opposite to the second port along the first direction, and an area of the light-transmitting portion is greater than or equal to an area of the second port.

In one embodiment, the lens further comprises a coating portion surrounding the light-transmitting portion.

In one embodiment, the camera assembly further comprises a camera circuit board arranged on the inner wall of the shell, wherein the camera circuit board is used for installing the camera;

the direction of the camera circuit board is arranged at an angle with the first direction, so that the direction of the camera is arranged at a preset angle with the first direction.

In one embodiment, the preset angle is a; wherein: a is more than or equal to 0 degree and less than or equal to 13 degrees.

In one embodiment, an inner wall of the housing is provided with a mounting part which is arranged opposite to the camera circuit board along the first direction, the mounting part is provided with a plurality of mounting posts which extend along the first direction, and each mounting post is provided with a threaded hole; the camera shooting circuit board is provided with a plurality of mounting holes which are in one-to-one correspondence with the threaded holes so as to be connected with the mounting parts;

the plurality of mounting posts comprise a first mounting post and a second mounting post which are arranged at intervals along a second direction, and the size of the first mounting post in the first direction is larger than that of the second mounting post in the first direction, so that the orientation of the camera arranged on the camera circuit board is arranged at a preset angle with the first direction;

wherein the first direction and the second direction are perpendicular to each other.

In one embodiment, the heat dissipation hole of the plurality of heat dissipation holes disposed opposite to the mounting portion in the first direction is configured as a blind hole.

In one embodiment, the projector further comprises a radiator arranged in the mounting cavity, a containing groove is formed in one side, close to the camera assembly, of the radiator, and the camera assembly is at least partially contained in the containing groove.

In one embodiment, the projector further comprises an axial fan mounted in the mounting cavity, and an axis of the axial fan is opposite to the lens along the first direction.

In the technical scheme of this application, through setting up a plurality of louvres on the casing of projecting apparatus to surround the light-passing hole by a plurality of louvres, thereby make the light-passing hole can not pay attention to very much, increased the disguise of lens and the aesthetic property of whole projecting apparatus. In addition, the light-passing hole is gradually expanded from inside to outside, so that the radial size of the light-passing hole is gradually enlarged from inside to outside, the camera has more excellent shooting visual angle, and a projection picture can be completely shot.

The light-passing hole is not a conventional cylindrical hole, so that a user cannot easily observe a large circular hole outside, but can only see the shape of the light-passing hole near the port on one side of the mounting cavity, and the light-passing hole is difficult to easily find. Specifically, the size of the port that the light passing hole is close to one side of the installation cavity is smaller, and the size of the port that is close to one side of the outside world is larger, so that when the user looks at the light passing hole outside the shell, the light passing hole comprises a circular area in the middle and an annular area surrounding the periphery of the circular area, and the light passing hole can be easily confused in a plurality of heat dissipation holes, and is not easy to be found by the user during use. The utility model provides a light through hole of projecting apparatus can be comparatively easy confuse between a plurality of louvres, avoids causing the impact in vision to the user, increases the aesthetic property of projecting apparatus.

Drawings

Fig. 1 is an exploded view of an embodiment of a projector according to the present application.

Fig. 2 is an exploded view of the projector of fig. 1 at another angle.

Fig. 3 is a schematic front view of the projector of fig. 1.

Fig. 4 is a schematic structural view of a part of the structure of the housing in fig. 1.

Fig. 5 is a schematic structural view of the projector in fig. 1.

Fig. 6 is a schematic cross-sectional view of the projector of fig. 5.

Fig. 7 is a schematic cross-sectional view of another location of the projector of fig. 5.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Projector with a light source for projecting light	1	Shell body
11	Heat dissipation hole	12	Light-transmitting hole
				13	Mounting part	131	Mounting column
131a	First mounting post	131b	Second mounting post
				2	Camera component	21	Lens
211	Light transmitting portion	22	Image pickup circuit board
				23	Camera head	3	Radiator
31	Accommodating groove	4	Axial flow fan
				M	First direction	N	Second direction

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

With the rapid development of projection technology, the current projector has already had an image correction function, and the projector can automatically correct the projection deviation through the image correction function. In practice, a conventional projector generally shoots a currently projected picture through a camera, then analyzes and judges whether the currently projected picture is normal, and performs corresponding adjustment. However, in order to completely capture a projection image, a camera of a conventional projector is generally provided with a large light-transmitting hole on a housing, which affects the appearance of the projector.

In view of this, this application proposes a projector, and the camera that aims at solving traditional projector is in order to shoot projection picture completely, and the general great that sets up of light passing hole on the casing compares the problem that influences the outward appearance of projector. Fig. 1 to 7 are schematic structural diagrams of an embodiment of a projector according to the present application.

Referring to fig. 1 to 4, a projector 100 according to the present application includes a housing 1 and a camera assembly 2. The inside of the shell 1 is provided with an installation cavity, and the shell 1 is provided with a plurality of heat dissipation holes 11 and a light passing hole 12 which are communicated with the installation cavity. The plurality of heat dissipation holes 11 are arranged around the light passing hole 12, and the plurality of heat dissipation holes 11 extend along the first direction M, and the light passing hole 12 is gradually widened from inside to outside. The camera assembly 2 comprises a lens arranged on one side of the light through hole 12 away from the mounting cavity and a camera 23 arranged in the mounting cavity, wherein the camera 23 is arranged opposite to the light through hole 12 along the first direction M.

In this application, the first direction M is a relative direction, and the first direction M may be the extending direction of the heat dissipation hole 11.

In the technical scheme of the application, through setting up a plurality of louvres 11 on the casing 1 of projector 100 to by a plurality of louvres 11 around the light hole 12, thereby make the light hole 12 can not pay attention to very much, increased the disguise of lens 21 and the aesthetic property of whole projector. In addition, the light-passing holes 12 are gradually widened from inside to outside, so that the radial dimension of the light-passing holes 12 is gradually enlarged from inside to outside, which makes the camera 23 have a more excellent shooting view angle, and a projection picture can be completely shot.

The light-passing hole 12 is not a conventional cylindrical hole, which makes it difficult for the user to observe a large circular hole from the outside, but only the shape of the port of the light-passing hole 12 near the side of the installation cavity, making it difficult for the light-passing hole 12 to be easily found. Specifically, the size of the port of the light-passing hole 12 near the side of the installation cavity is smaller, and the size of the port near the outside is larger, so that when a user observes the light-passing hole 12 outside the casing 1, the light-passing hole 12 comprises a circular area in the middle and an annular area surrounding the periphery of the circular area, and the light-passing hole 12 can be easily confused in the plurality of heat dissipation holes 11, and is not easy to be found by the user during use. The light through holes 12 of the projector 100 can be easily mixed among the plurality of heat dissipation holes 11, so that visual impact to a user is avoided, and the attractiveness of the projector 100 is improved.

Referring to fig. 3, in some embodiments, the light-passing hole 12 includes a first port near the mounting cavity and a second port far from the mounting cavity, and the first port has the same shape and size as the mouth of the heat-dissipating hole 11.

The first port and the second port on the lens 21 can allow light to pass through, so that the camera 23 of the camera assembly 2 can complete shooting of the projection image by means of the first port. It should be noted that, the radial dimension of the second port of the light-passing hole 12 is larger than that of the first port, so that the camera 23 can obtain light within a larger range by virtue of the light-passing hole 12, so that the camera 23 can shoot a complete projection picture conveniently.

It should be noted that the first port of the light-passing hole 12 has a smaller size, and the second port has a larger size, so that the light-passing hole 12 includes a circular region in the middle and an annular region surrounding the outer periphery of the circular region when the user views the light-passing hole 12 outside the housing 1. While the first port of the lens 21 is the same shape and size as the heat sink 11, this makes it more difficult for a user to discern the circular area in the plurality of heat sinks 11, thereby further helping to hide the light passing holes 12.

In some embodiments, the lens 21 includes a light-transmitting portion 211 in a middle portion thereof, the light-transmitting portion 211 is disposed opposite to the second port along the first direction M, and an area of the light-transmitting portion 211 is greater than or equal to an area of the second port and is the same as the shape and size of the second port.

The light-transmitting portion 211 can allow external light to enter the light-transmitting hole 12 and enter the camera 23 through the light-transmitting hole 12. In this application, the area of the light-transmitting portion 211 is greater than or equal to the area of the second port, so that the light-transmitting portion 211 does not prevent any light from entering the light-transmitting hole 12, and the shooting performance of the camera 23 is ensured. It should be noted that, the size of the second port is larger than that of the first port, so the light receiving capability of the light passing hole 12 is relatively strong, and the camera 23 can take a complete projection picture.

In some embodiments, the light-transmitting portion 211 is the same shape and size as the second port, such that the light-transmitting portion 211 does not prevent any light from entering the light-transmitting aperture 12.

Specifically, the lens 21 needs to be at least partially in contact with the housing 1 at the time of installation, and the portion of the lens 21 in contact with the housing 1 cannot be disposed opposite to the light-passing hole 12 in the first direction M, so that the portion of the lens 21 in contact with the housing 1 cannot receive light, and the portion of the lens 21 in contact with the housing 1 also amplifies the difference between the lens 21 and the housing 1, resulting in the lens 21 being more easily found by the user. Thus, in some embodiments, the lens 21 further includes a coating portion surrounding the light-transmitting portion.

The coating portion, which is the portion of the lens in contact with the housing 1 as described above, keeps the color of the coating portion consistent with that of the housing 1, making the coating portion difficult to distinguish from the housing 1, thus increasing the concealment of the lens 21, making it difficult for the user to easily find the lens 21 when in use.

Referring to fig. 6 to 7, in some embodiments, the camera module 2 further includes a camera circuit board 22 disposed on an inner wall of the housing 1, and the camera circuit board 22 is used for mounting the camera 23. The direction of the camera circuit board 22 is set at an angle to the first direction M, so that the direction of the camera 23 is set at a preset angle to the first direction M.

In practical application, in order to facilitate the projector 100 to be directly placed on a desktop for projection, the lens of the projector 100 is usually set off-axis (Offset), so that the bottom edge of the projection screen and the lens of the projector 100 are in the same horizontal plane, and therefore, the orientation of the camera 23 needs to be set in a deflection manner to capture the complete projection screen. Therefore, in some embodiments, the direction of the camera circuit board 22 is set at an angle to the first direction M, so that the direction of the camera 23 is set at a preset angle to the first direction M, so that the camera 23 can capture a complete projection image.

Referring to fig. 6 and 7, in some embodiments, the predetermined angle is a, wherein: a is more than or equal to 0 degree and less than or equal to 13 degrees. Some projectors 100 do not require off-axis placement, so that the camera 23 may be positioned at an angle of 0 ° without being skewed for a particular application. In practice, the preset angle of the required deflection of the camera 23 is not too large, otherwise the photographing angle of the camera 23 may be deteriorated instead. The inventor of the present application repeatedly tests to obtain that the preset angle required by the camera 23 cannot be larger than 13 ° generally, and the camera 23 can more stably shoot the projection image of the projector 100 in a deflection arrangement.

In some embodiments, the inner wall of the housing 1 is provided with a mounting portion 13 disposed opposite to the image pickup circuit board 22 along the first direction M, the mounting portion 13 is provided with a plurality of mounting posts 131 extending along the first direction M, and each mounting post 131 is provided with a threaded hole; the imaging circuit board 22 is provided with a plurality of mounting holes in one-to-one correspondence with the screw holes to be connected to the mounting portion 13.

The plurality of mounting posts 131 includes a first mounting post 131a and a second mounting post 131b disposed at intervals along the second direction N, and a dimension of the first mounting post 131a in the first direction M is greater than a dimension of the second mounting post 131b in the first direction M, so that a direction of the camera 23 disposed on the camera circuit board 22 is set at a preset angle with the first direction M. Wherein the first direction M and the second direction N are perpendicular to each other.

In this application, the second direction N is another opposite direction, and the second direction N may be set as an opposite direction of the first mounting post 131a and the second mounting post 131b, and the first direction M and the second direction N are perpendicular to each other.

In some conventional projectors 100, a mounting board is generally provided on the housing 1, and the camera circuit board 22 is mounted on the additional mounting board, which definitely occupies a large space in the mounting cavity. In some embodiments of the present application, the housing 1 is provided with the mounting portion 13, and the mounting portion 13 is actually a part of the housing 1, and the plurality of mounting posts 131 on the mounting portion 13 are detachably connected with the camera circuit board 22, so that the camera circuit board 22 is directly fixed on the housing 1, and the space occupying the mounting cavity is reduced.

In addition, the image capturing circuit board 22 is connected to the first mounting post 131a and the second mounting post 131b, and the lengths of the first mounting post 131a and the second mounting post 131b in the first direction M are different, so that the image capturing circuit board 22 is inclined when the image capturing circuit board 22 abuts against the first mounting post 131a and the second mounting post 131 b. Therefore, in a specific design, by setting the lengths of the first mounting post 131a and the second mounting post 131b, the direction of the camera circuit board 22 and the first direction M can be set at an angle, and the direction of the camera 23 mounted on the camera circuit board 22 at this time and the first direction M can be set at a preset angle. When the orientation of the camera 23 is set at a preset angle with the first direction M, the camera 23 can stably capture a complete projection image, so that the projector 100 accurately corrects the projection angle.

Referring to fig. 2 to 4, in some embodiments, the heat dissipation holes 11 disposed opposite to the mounting portion 13 along the first direction M among the plurality of heat dissipation holes 11 are configured as blind holes. Since a plurality of mounting posts 131 are required to be provided on the mounting portion 13, the heat dissipation holes 11 provided opposite to the mounting portion 13 in the first direction M may overlap the mounting portion 13. When the user is using the projector 100, the user may notice the mounting portion 13 on the other side of the heat dissipation hole 11, which also reduces the aesthetic appearance of the projector 100. Therefore, the heat dissipation hole 11 opposite to the mounting portion 13 along the first direction M may be a blind hole, so that the user cannot notice the mounting portion 13 on the other side of the heat dissipation hole 11, thereby increasing the concealment of the mounting portion 13 and ensuring the aesthetic property of the projector 100.

Referring to fig. 5 to 7, in some embodiments, the projector 100 further includes a heat sink 3 disposed in the mounting cavity, and a receiving groove 31 is disposed on a side of the heat sink 3 adjacent to the camera module 2, and the camera module 2 is at least partially received in the receiving groove 31.

The plurality of heat dissipation holes 11 are disposed around the light passing hole 12, and the lens 21 of the camera module 2 is mounted on the light passing hole 12, so that the camera module 2 and the plurality of heat dissipation holes 11 are disposed substantially opposite to each other along the axial direction of the heat dissipation holes 11. In addition, the plurality of heat dissipation holes 11 mainly function to perform gas exchange between the inside and the outside of the installation cavity, so that the hot air conveyed by the heat sink 3 can be smoothly blown out, and therefore, the heat sink 3 and the plurality of heat dissipation holes 11 are arranged opposite to each other along the axial direction of the heat dissipation holes 11. Specifically, the camera module 2 is actually disposed between the housing 1 and the plurality of heat dissipation holes 11.

In fact, the radiator 3 is further provided with sealing foam, and the sealing foam can seal between the radiator 3 and the shell 1, so that the radiator 3 can radiate heat conveniently. The volume of the camera module 2 is much smaller than that of the radiator 3, so that the sealing foam surface can be practically enclosed around the camera module 2, thereby helping the camera module 2 to be hidden.

Referring to fig. 6 to 7, specifically, a receiving groove 31 is formed on a side of the heat sink 3 close to the camera module 2, and the camera module 2 is at least partially received in the receiving groove 31, so that the camera module 2 is more compact to mount, and the space utilization of the mounting cavity is increased.

In some embodiments, the projector 100 further includes an axial flow fan 4 mounted in the mounting cavity, the axial flow fan 4 being disposed opposite the lens 21 along the first direction M at an axial center thereof. The axial center of the axial fan 4 is a weak wind area, and the axial center of the axial fan 4 and the lens 21 are arranged opposite to each other along the first direction M, so that the influence of the camera assembly 2 on the heat dissipation effect of the axial fan 4 is small, and the normal heat dissipation of the projector 100 is not influenced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. A projector, comprising:

a housing having an installation cavity therein; the shell is provided with a plurality of radiating holes and a light-passing hole, wherein the radiating holes are communicated with the mounting cavity, the radiating holes are arranged around the light-passing hole, and the radiating holes extend along a first direction; the light passing holes are gradually expanded from inside to outside; and

the camera assembly comprises a lens arranged on one side, deviating from the installation cavity, of the light-passing hole and a camera arranged in the installation cavity, and the camera is arranged opposite to the light-passing hole along the first direction.

2. The projector of claim 1 wherein the light passing aperture includes a first port proximate the mounting cavity and a second port distal from the mounting cavity, the first port being the same shape and size as the mouth of the heat dissipating aperture.

3. The projector according to claim 2, wherein the lens includes a light-transmitting portion in a middle portion thereof, the light-transmitting portion being disposed opposite to the second port in the first direction, and an area of the light-transmitting portion being greater than or equal to an area of the second port.

4. The projector of claim 3 wherein the lens further comprises a coating portion surrounding the light-transmitting portion.

5. The projector of claim 1, wherein the camera assembly further comprises a camera circuit board disposed on the inner wall of the housing, the camera circuit board for mounting the camera;

the direction of the camera circuit board is arranged at an angle with the first direction, so that the direction of the camera is arranged at a preset angle with the first direction.

6. The projector of claim 5, wherein the predetermined angle is a; wherein: a is more than or equal to 0 degree and less than or equal to 13 degrees.

7. The projector according to claim 5, wherein an inner wall of the housing is provided with a mounting portion provided opposite to the image pickup circuit board in the first direction, the mounting portion is provided with a plurality of mounting posts extending in the first direction, and each of the mounting posts is provided with a screw hole; the camera shooting circuit board is provided with a plurality of mounting holes which are in one-to-one correspondence with the threaded holes so as to be connected with the mounting parts;

the plurality of mounting posts comprise a first mounting post and a second mounting post which are arranged at intervals along a second direction, and the size of the first mounting post in the first direction is larger than that of the second mounting post in the first direction, so that the orientation of the camera arranged on the camera circuit board is arranged at a preset angle with the first direction;

wherein the first direction and the second direction are perpendicular to each other.

8. The projector according to claim 7, wherein the heat dissipation hole provided opposite to the mounting portion in the first direction among the plurality of heat dissipation holes is configured as a blind hole.

9. The projector of any of claims 1-8, further comprising a heat sink disposed within the mounting cavity, the heat sink having a receiving slot disposed on a side thereof adjacent the camera assembly, the camera assembly being at least partially received within the receiving slot.

10. The projector according to any one of claims 1 to 8, further comprising an axial flow fan mounted in the mounting chamber, the axial flow fan being disposed opposite the lens in the first direction at an axial center thereof.