CN211296831U - Projection device and laser television - Google Patents

Abstract

The application relates to the technical field of projection, and discloses a projection device which comprises a shell and a projection unit, wherein the shell is provided with an opening; the air inlet is arranged on the side wall of the shell; the filter screen assembly is detachably connected with the shell and comprises a frame and a filtering part which can generate elastic deformation and is configured to cover the air inlet or be drawn out of the air inlet through the opening. This application can dismantle the filter screen subassembly of being connected through setting up the casing with projection arrangement, and filter screen subassembly includes frame and the filter house that can take place elastic deformation, makes filter screen subassembly be configured to cover the air intake or by the opening of casing is taken out from the air intake, realizes that even the distance of projection arrangement position and barrier is less, also need not to remove projection arrangement's position, still can dismantle filter screen subassembly in the casing or by the casing and get off. The application also discloses a laser television.

Description

Projection device and laser television

Technical Field

The present application relates to the field of projection technology, and for example, to a projection apparatus and a laser television.

Background

With the continuous improvement of the pursuit of people for the quality of life, the requirements of people on household appliances are higher and higher. For example, for a television, the requirements of people are no longer limited only to the size of the screen, the aesthetic appearance of the style, etc., and the energy saving degree and the eye protection condition of people are becoming one of the important factors considered when people buy the television.

Laser televisions are increasingly favored because of their superior characteristics of no electromagnetic radiation on the screen and lower power consumption. However, the projection device of the laser television emits a large amount of heat during the working process, in order to realize the heat dissipation, an opening for ventilation is generally arranged on a housing of the projection device, and tiny dust particles carried in the air easily enter the projection device from the opening, so that the quality of a projection picture is affected.

At present, in order to solve the problem that the projection picture quality is affected by the entrance of tiny dust particles into the vent of the projection device, a filter screen is usually arranged at the opening for heat dissipation and ventilation of the projection device. The filter screen has a need to be disassembled since it functions to filter fine dust particles.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

when the filter screen of the existing projection device is disassembled, the filter screen is often inconvenient to disassemble due to the small distance between the projection device and the barrier, and if the filter screen is required to be disassembled, the projection device needs to be moved; after the projection device is moved each time, the projection device needs to be debugged in a complex way when being used again, which is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a projection device and a laser television, which aim to solve the problem that the distance between the projection device and a barrier is smaller than the size of a filter screen, so that the filter screen is inconvenient to disassemble and assemble.

In some embodiments, the projection device comprises:

a housing provided with an opening;

the air inlet is arranged on the side wall of the shell;

the filter screen assembly is detachably connected with the shell and comprises a frame and a filtering part capable of elastically deforming, and the filter screen assembly is configured to cover the air inlet or be drawn out of the air inlet through the opening of the shell.

In some embodiments, the laser television comprises the projection device.

The projection device and the laser television provided by the embodiment of the disclosure can realize the following technical effects:

can dismantle the filter screen subassembly of being connected through setting up the casing with projection arrangement, filter screen subassembly includes frame and the filter house that can take place elastic deformation, makes filter screen subassembly be configured to cover the air intake or by the opening of casing by being taken out from the air intake, realizes even projection arrangement position and barrier's distance is less, also need not to remove projection arrangement's position, still can install filter screen subassembly in the casing or dismantle by the casing.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of a projection apparatus provided in an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a projection apparatus provided in an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a projection apparatus provided in an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a projection apparatus provided in an embodiment of the present disclosure.

Reference numerals:

10. an obstacle; 20. a projection device; 21. a housing; 22. an air inlet; 23. a screen assembly; 231. a frame; 232. a filtering part; 24. an opening; 25. a chute; 26. a limiting hole; 27. a protrusion; 28. a connecting member; 29. a drawing part.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein, as used herein, are defined as orientations or positional relationships based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, and indirect connections via intermediary media, where the specific meaning of the terms is understood by those skilled in the art as appropriate.

The projection device 20 is a device that can project images or videos onto a screen, and can be connected to other devices through interfaces to play corresponding signals transmitted thereto by the other devices. When the projection apparatus 20 is used, it is usually required to be suspended in the air or placed in a fixed position, and the projection apparatus 20 is not moved frequently, and during the working process, static electricity is generated, so that the tiny dust particles are more easily adsorbed on the surface of the housing 21 and in the housing 21. Since a large amount of dust in the environment is likely to enter the housing 21 of the projection apparatus 20 through the heat dissipation opening, the projection apparatus 20 is often too hot to start up. Therefore, it is necessary to provide a filter 232 capable of blocking dust at an opening or the like of the projection apparatus 20 where the housing 21 communicates with the outside.

However, when the filter screen of the conventional projection apparatus 20 is detached, the distance between the projection apparatus 20 and the obstacle 10 is often small, as shown in fig. 1, which causes inconvenience for detaching the filter screen, and if the filter screen is to be detached, the projection apparatus 20 needs to be moved; however, after the projection apparatus 20 is moved each time, the projection apparatus 20 needs to be adjusted in a complicated manner when it is reused, which is inconvenient.

The embodiment of the present disclosure provides a projection apparatus 20, as shown in fig. 2 and 3, including: a housing 21 provided with an opening 24; an air inlet 22 disposed on a side wall of the housing 21; the filter screen assembly 23, detachably connected to the housing 21, includes a frame 231 and an elastically deformable filter portion 232 configured to cover the intake vent 22 or be drawn out of the intake vent 22 through the opening 24 of the housing 21.

Alternatively, the projection device 20 is provided with a projection lens, and here, the housing 21 may include six faces, the face provided with the projection lens may be a front face, and the face opposite thereto may be a back face of the housing 21; the other four sides of the housing 21 may be sidewalls; alternatively, when the projection apparatus 20 is placed in a normal use state, the left and right surfaces of the housing 21 may be side walls of the housing 21.

Alternatively, the number of the air intakes 22 may be one or more, and the number of the air intakes 22 is not particularly limited herein. Specifically, the number of the air inlets 22 may be two, and in this case, the air inlets 22 may be disposed on the same side wall of the housing 21, and may be disposed on different side walls of the housing 21. Accordingly, each intake vent 22 of the housing 21 is provided with a screen assembly 23 that covers the intake vent 22.

Alternatively, the projection device 20 may be provided with a heat dissipation member, and a heat dissipation member may be provided at each of the air intakes 22 of the housing 21, and the heat dissipation member may accelerate the heat dissipation of the projection device 20 by accelerating the air flow rate in the housing 21. For example, the heat dissipation member may be a heat dissipation fan.

Optionally, the filter screen assembly 23 includes a frame 231 and a filter portion 232, the filter portion 232 may include a filter screen, and the filter screen may be made of plastic or metal. For example, it may be made of polypropylene material. Alternatively, the filter portion 232 may include multiple layers of filter screens, and each layer of filter screens may have the same size and be stacked and fixed in the frame 231. The filter part 232 adopts a mode of stacking multiple layers of filter screens, so that the air flow entering the shell 21 can be filtered by multiple layers, and the filtering effect on tiny dust particles is better.

Optionally, the screen assembly 23 is detachable from the housing 21, and when the projection apparatus 20 is used, the screen assembly 23 is mounted at the air inlet 22 of the housing 21; when the filter screen assembly 23 needs to be removed and cleaned, the filter screen assembly 23 is pulled out from the opening 24 of the housing 21, so that the filter screen assembly 23 is separated from the housing 21, and the filter screen assembly 23 is conveniently cleaned.

Alternatively, screen assembly 23 may be elastically deformed. Specifically, the frame 231 and the filter part 232 are both made of an elastically deformable material, the filter part 232 may be fixed to the frame 231, the frame 231 may move relative to the housing 21, and the filter part 232 may be mounted at the air inlet 22 along with the frame 231 or may be drawn out of the air inlet 22 from the opening 24. In this way, by forming the filter assembly 23 detachably connected to the housing 21 of the projection apparatus 20 by using an elastically deformable material, the filter assembly 23 can be attached to and detached from the housing 21 without moving the position of the projection apparatus 20 even if the projection apparatus 20 is located at a small distance from the obstacle 10.

Alternatively, the filter portion 232 is an elastically deformable structure, and the filter portion 232 may be mounted at the intake vent 22 or drawn out of the intake vent 22 from the opening 24 by the movable engagement of the frame 231. In this way, the filter assembly includes the frame 231 and the filter portion 232 capable of elastic deformation, and even if the distance between the position of the projection apparatus 20 and the obstacle 10 is small, the filter portion 232 can be mounted on and dismounted from the housing 21 without moving the position of the projection apparatus 20.

Optionally, a slide slot 25 is provided in housing 21, and as shown in fig. 4, slide slot 25 extends along opening 24 into housing 21 and is configured to slidably engage with rim 231 of screen assembly 23. In this way, the frame 231 of the screen assembly 23 is slidably engaged with the sliding slot 25 in the housing 21 to detachably connect the screen assembly 23 to the housing 21, so that the screen assembly 23 is configured to cover the air inlet 22 or be drawn out from the air inlet 22 through the opening 24 of the housing 21, and even if the distance between the position of the projection apparatus 20 and the obstacle 10 is small, the screen assembly 23 can be mounted on the housing 21 or detached from the housing 21 without moving the position of the projection apparatus 20.

Alternatively, the sliding groove 25 may be disposed on the inner wall of the housing 21 having the air inlet 22, and the shape of the air inlet 22 is not particularly limited, and may be irregular. The sliding grooves 25 may be arranged in parallel such that the openings of the two grooves are opposite to each other, and the middle portion of the two sliding grooves 25 completely covers the air inlet 22. When the screen assembly 23 is configured to cover the intake vent 22 and be drawn out of the intake vent 22, the frame 231 of the screen assembly 23 may be inserted into or drawn out of the track of the chute 25.

Alternatively, the sliding groove 25 may be disposed closely to the edge of the air inlet 22. For example, the air inlet 22 is a square air inlet 22, a first side of the air inlet 22 is close to the opening 24 of the housing 21, a sliding groove 25 may be disposed at any one of two sides adjacent to the first side, or both sides adjacent to the first side may be disposed with sliding grooves 25, and the openings of the grooves of the two sliding grooves 25 are disposed opposite to each other. At this time, one side or two sides of the frame 231 are provided with components which can be in sliding fit with the grooves, so that the sliding fit between the frame 231 and the sliding groove 25 can be realized, and the filter screen assembly 23 can be detached from the housing 21.

Optionally, a limiting hole 26 is arranged in the sliding groove 25; the outer wall of the frame 231 of the filter screen assembly 23 is provided with a protrusion 27, and the protrusion 27 is disposed at a corresponding position of the limiting hole 26. Therefore, the protrusion 27 on the outer wall of the frame 231 of the filter screen assembly 23 is engaged with the corresponding position limiting hole 26 in the sliding slot 25, so that when the filter screen assembly 23 is configured to cover the air inlet 22, it is firmer and the filter screen assembly 23 cannot easily fall off from the housing 21.

Alternatively, a limiting hole 26 may be provided on the inner wall of the housing 21 opposite to the opening 24 of the housing 21, in this case, a protrusion 27 may be provided on the outer wall of the frame 231 on the side of the frame 231 of the filter screen assembly 23 opposite to the opening 24, wherein the length of the filter screen assembly 23 from the opening 24 to the extending direction of the housing 21 may be equal to the distance between the opening 24 side of the housing 21 and the side opposite to the opening 24.

Here, the protrusion 27 may be provided to fit the stopper hole 26, and the arrangement of the protrusion 27 and the arrangement of the stopper hole 26 may be interchanged. The opening 24 may be provided on the back surface of the housing 21, and the inner wall of the opposite housing 21 may refer to the inner wall provided with the projection lens surface.

Optionally, the inner wall of the limiting hole 26 is made of a flexible material. In this case, the protrusion 27 may be made of a rigid material. Thus, when the filter screen assembly 23 is configured to cover the air inlet 22, the filter screen assembly 23 cannot easily fall off from the housing 21 by the cooperation of the protrusion 27 on the outer wall of the frame 231 of the filter screen assembly 23 and the corresponding position limiting hole 26 in the sliding slot 25; the inner wall of the limiting hole 26 is made of a flexible material, so that when the filter screen assembly 23 is drawn out from the air inlet 22 through the opening 24 of the housing 21, the filter screen assembly 23 can be more conveniently disassembled due to the characteristic of elasticity of the flexible material.

Optionally, the inner wall of the limiting hole 26 is made of a rubber material, and when the filter screen assembly 23 and the housing 21 are in an assembled state, the protrusion 27 is located in the limiting hole 26, and the connection between the filter screen assembly 23 and the housing 21 is limited by the cooperation of the protrusion and the limiting hole.

Optionally, the protrusion 27 is made of a flexible material, and the inner wall of the limiting hole 26 is made of a rigid material. For the description of the protrusion 27 and the limiting hole 26, reference may be made to the embodiment in which the inner wall of the limiting hole 26 is made of a flexible material, and details thereof are not described herein.

Alternatively, the volume of the protrusion 27 is larger than the volume in the position-limiting hole 26, and may be in interference fit with the position-limiting hole 26. Like this, because spacing hole 26 inner wall is flexible material, the interference fit through spacing hole 26 of the protruding 27 of the frame 231 outer wall of filter screen subassembly 23 and the corresponding position in the spout 25, because interference fit is under the assembled state, spacing hole 26 has elastic pressure with protruding 27 contact surface, when making filter screen subassembly 23 be configured as covering air intake 22, filter screen subassembly 23 is more fastened with spout 25, can not drop from casing 21 easily.

Optionally, when at least one of the protrusion 27 and the inner wall of the position-limiting hole 26 is made of a flexible material, the protrusion 27 is set to have a volume larger than the volume of the position-limiting hole 26, so that the protrusion 27 and the position-limiting hole 26 are in interference fit. The fastening mode of interference fit is that the extrusion force between the bulge 27 and the inner wall of the limiting hole 26 or the friction force tangential to the extrusion force is larger, and the fastening effect is better. For example, the protrusion 27 and the position-limiting hole 26 are both cylindrical, and the volume of the protrusion 27 is slightly larger than that of the position-limiting hole 26, so that radial extrusion force obviously exists between the protrusion 27 and the position-limiting hole 26, and when the protrusion 27 and the position-limiting hole 26 move relatively, a large friction force exists between the surface of the protrusion 27 and the inner wall of the position-limiting hole 26. This enhances the fastening effect of the protrusions 27 and the stopper holes 26, which in turn makes the connection of the screen assembly 23 to the housing 21 more secure.

In some embodiments, housing 21 is further provided with a connector 28, as shown in FIG. 4, and screen assembly 23 is fastened to or disconnected from housing 21 by connector 28. In this way, a connecting member 28 is provided between the housing 21 and the screen assembly 23, and the screen assembly 23 is fixed to the air inlet 22 or the screen assembly 23 is drawn out from the opening 24 of the housing 21 by switching the state of the connecting member 28.

Optionally, screen assembly 23 includes a pull 29. When the filter assembly 23 covers the air inlet 22, a drawing portion 29 is disposed at a position of the filter assembly 23 close to the opening 24 of the housing 21, the drawing portion 29 is disposed outside the opening 24 of the housing 21, and one side of the frame 231 of the filter assembly 23 is attached and fixed to the drawing portion 29.

Optionally, the surface of the drawer 29 that is fixed to the frame 231 serves as a contact surface, and the area of the drawer 29 at the contact surface is slightly larger than that of the frame 231. For example, on this contact surface, the part of the drawn part 29 larger than the frame 231 may be provided with a spacer for the absorption fit of the rebound.

Optionally, the connection 28 comprises: a gasket provided on an inner wall of the drawer 29; and the rebounder is arranged at the edge of the opening 24 of the shell 21 and is in adsorption fit with the gasket. Thus, the drawing part 29 can be provided with no holding piece, and the gasket can be adsorbed and separated from the rebounder only by pressing the drawing part 29, so that the filter screen assembly 23 is fastened and separated from the shell 21 under the driving of the drawing part 29.

Optionally, the connector 28 is a resilient reset switch. Thus, the elastic reset switch is only required to be mounted on the housing 21 near the opening 24 and connected to the screen assembly 23, and the elastic reset switch is only required to be pressed once. When the elastic reset switch is at the first position, the filter screen assembly 23 and the shell 21 are in an assembly state, and the filter screen assembly 23 covers the air inlet 22; when the elastic reset switch is in the second position, the filter screen assembly 23 is in a disengaged state with the housing 21, and the end of the filter screen assembly 23 extends out of the opening 24 of the housing 21, so that the filter screen assembly 23 is conveniently drawn out through the opening 24 of the housing 21.

Optionally, the elastic reset switch is disposed at the bottom of the frame 231 of the filter screen assembly 23 or at the opening 24 on the inner wall of the opposite housing 21. Therefore, no matter the elastic reset switch is arranged at the bottom of the frame 231 of the filter screen assembly 23 or the filter screen assembly 23 is arranged on the inner wall of the shell 21 opposite to the opening 24 of the shell 21, the elastic reset switch can be pressed, the filter screen assembly 23 and the shell 21 can be in an assembly state, the filter screen assembly 23 covers the air inlet 22, the filter screen assembly 23 and the shell 21 are in a separation state, the end part of the filter screen assembly 23 extends out of the opening 24 of the shell 21, and the filter screen assembly 23 is conveniently drawn out from the opening 24 of the shell 21.

The embodiment of the present disclosure provides a laser television, which includes the projection device 20 described above.

Thus, when the laser television is installed, after the relative position between the screen and the projection device 20 is adjusted, even if there is an obstacle 10 at a short distance around the position of the projection device 20, by providing the filter screen assembly 23 detachably connected to the housing 21 of the projection device 20, the filter assembly includes the frame 231 and the filter portion 232 capable of elastically deforming, so that the filter screen assembly 23 is configured to cover the air inlet 22 or be drawn out from the air inlet 22 through the opening 24 of the housing 21, the filter screen assembly 23 can be installed on the housing 21 or be detached from the housing 21 without moving the position of the projection device 20.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.

Claims (10)

1. A projection device, comprising:

a housing provided with an opening;

the air inlet is arranged on the side wall of the shell;

the filter screen subassembly, with the connection can be dismantled to the casing, including frame and the filter house that can take place elastic deformation, the filter screen subassembly is configured to cover the air intake or by the opening of casing is taken out the air intake.

2. The projection device of claim 1, wherein a chute is disposed within the housing, the chute extending into the housing along the opening, the chute configured to slidably engage a bezel of the screen assembly.

3. The projection device of claim 2, wherein a limiting hole is disposed in the sliding groove; the frame outer wall of filter screen subassembly is provided with the arch, the arch set up in the corresponding position in spacing hole.

4. The projection device of claim 3, wherein the inner wall of the position-limiting hole is made of a flexible material.

5. The projection device of claim 4, wherein the protrusion has a volume greater than a volume of the hole, and is in interference fit with the hole.

6. The projection device of any of claims 1 to 5, wherein the housing is further provided with a connector by which the screen assembly is fastened to or detached from the housing.

7. The projection device of claim 6, wherein the screen assembly includes a pull; the connector includes:

a gasket disposed on an inner wall of the drawing part;

and the rebounder is arranged at the opening edge of the shell and is in adsorption fit with the gasket.

8. The projection device of claim 6, wherein the connector is a resilient reset switch.

9. The projection device of claim 8, wherein the elastic reset switch is disposed at a bottom of a frame of the filter screen assembly or at an inner wall of the housing opposite to the opening.

10. A laser television comprising a projection device according to any one of claims 1 to 9.

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