CN220693212U - Projection equipment - Google Patents

Abstract

The application discloses projection equipment relates to projection display technical field for the stereo set occupation space is great in the casing among the solution projection equipment, leads to projection equipment's great problem of volume. The projection device comprises a bottom shell, a top shell and sound equipment. The top shell is connected with the bottom shell, and the sound equipment is arranged on the top shell. The top case includes a top plate and a front panel. The top plate and the bottom plate are arranged oppositely at intervals, and the front panel is positioned between the top plate and the bottom plate and connected with the top plate. Wherein, the front panel is formed with and holds the chamber, and the stereo set sets up in holding the intracavity, is connected with the front panel. The projection device is used for projecting an image.

Description

Projection equipment

Technical Field

The application relates to the technical field of projection display, in particular to projection equipment.

Background

Projection televisions have the advantages of soft light, flexible display size and the like, and are increasingly favored by consumers. Projection televisions typically include a projection device and a projection screen. After the light rays projected by the projection device reach the projection screen, the light rays are reflected by the projection screen to form a projection picture.

Currently, projection devices generally include a housing and a sound box disposed inside the housing. The projection device may play audio of the projected picture through sound.

However, the sound of the projection device is generally disposed in an independent manner inside the housing, which occupies a large internal space, resulting in a large volume of the projection device.

Disclosure of Invention

The application provides a projection equipment for the stereo set occupation space is great in the casing among the solution projection equipment, leads to projection equipment's great problem of volume.

In order to achieve the above purpose, the present application adopts the following technical scheme:

in one aspect, an embodiment of the present application provides a projection apparatus, including a bottom case, a top case, and a sound. The top shell is connected with the bottom shell, and the sound equipment is arranged on the top shell. The top case includes a top plate and a front panel. The top plate is arranged opposite to the bottom plate at intervals, and the front panel is positioned between the top plate and the bottom shell and connected with the top plate. Wherein, the front panel is formed with and holds the chamber, and the stereo set sets up in holding the intracavity, is connected with the front panel.

The projection device provided by the embodiments of the present application,

in some embodiments, the receiving cavity has a bottom wall and a side wall. The lateral wall is located one side of diapire, encircles diapire a week setting, is connected with the diapire.

In some embodiments, the number of receiving cavities is a plurality, the plurality of receiving cavities including sky tone cavities and forward tone cavities. Sky sound outlet holes are formed in the side walls of the sky sound cavities. The sound includes a forward sound and a sky sound. The forward sound box is arranged in the forward sound cavity, and the forward sound box emits sound in a direction away from the bottom wall of the forward sound cavity. The sky sound sets up in sky sound intracavity. The sky sound goes out the sound towards the direction of sky sound play sound hole.

In some embodiments, the bottom wall of the forward acoustic cavity is formed with a first connecting post. The projection device further includes a first fastener. The first fastener penetrates through the forward sound box and stretches into the first connecting column to be connected with the first connecting column. The forward sound box is connected with the first connecting column through a first fastener.

In some embodiments, the side wall of the sky tone cavity is formed with a second connection post. The second connecting column is arranged opposite to the plane where the sky sound is located. The projection device further includes a second fastener. The second fastener penetrates through the sky sound and stretches into the second connecting column to be connected with the second connecting column. The sky sound is connected with the second connecting column through the second fastener.

In some embodiments, the projection device further includes a back plate, a power panel, a motherboard bracket, and a motherboard. The backboard is positioned on one side of the bottom shell close to the top plate and is connected with the bottom shell. The power panel is located one side of backplate near the roof, is connected with the backplate. The main board support is positioned on one side of the back board close to the top board and connected with the back board. And one part of the main board support is positioned on one side, far away from the backboard, of the power board and is arranged opposite to the backboard at intervals. The mainboard sets up on the mainboard support, sets up relatively with the power strip, is located one side that the power strip was kept away from to the mainboard support.

In some embodiments, the projection device further comprises a display panel mounting bracket, a display panel, and a shield. The display panel fixing support is located on one side, close to the top plate, of the back plate and connected with the back plate. The display panel is arranged on the display panel fixing bracket. The shielding piece is positioned on one side of the display panel far away from the backboard and is connected with the display panel fixing support.

In some embodiments, the display panel fixing bracket includes a main body portion and a first connection portion. The main body part is connected with the backboard, and the display panel is arranged on one side of the main body part and is connected with the main body part. The first connecting part is positioned at one side of the main body part far away from the backboard and is connected with the main body part. The first connecting part is arranged in parallel with the back plate at intervals, and is provided with a first connecting hole. The shielding member includes a shielding portion and a second connection portion. The shielding part is positioned at one side of the display panel far away from the backboard. The second connecting portion is connected with the shielding portion. The second connecting part is provided with a second connecting hole. The projection device further comprises a third fastener. The third fastener penetrates through the first connecting hole and the second connecting hole. The shielding member and the display panel fixing bracket are connected by a third fastener.

In some embodiments, the display panel fixing bracket further includes a first clamping portion. The first clamping part is positioned at one side of the main body part far away from the backboard and is connected with the main body part. The shield also includes a second snap-in portion. The second clamping part is connected with the shielding part and extends towards the direction close to the backboard. The first clamping part is positioned between the second connecting part and the second clamping part, and two sides of the first clamping part are respectively abutted against the second connecting part and the second clamping part.

On the other hand, the embodiment of the application provides projection equipment, which comprises a bottom shell, a top shell and a sound box. The top shell is connected with the bottom shell, and the sound equipment is arranged on the top shell. The top case includes a top plate and a front panel. The top plate is arranged opposite to the bottom plate at intervals, and the front panel is positioned between the top plate and the bottom shell and connected with the top plate. The sound box is connected with the front panel and is positioned between the top plate and the bottom shell, and at least part of the projection of the sound box on the bottom shell is positioned in the projection of the front panel on the bottom shell in the direction from the top plate to the bottom shell.

According to the projection device, the space between the top plate and the bottom shell can provide installation space for components of the projection device. Since the sound is mounted on the front panel and in a direction from the top plate to the bottom shell, at least part of the projection of the sound on the bottom shell is located within the projection of the front panel on the bottom shell. When the sound equipment is arranged on the front panel, no reserved gap exists between the sound equipment and the front panel, so that occupied space of the sound equipment in the projection equipment can be reduced, and the whole volume of the projection equipment is finally reduced.

Drawings

Fig. 1 is a schematic view of a usage state of a projection television according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a projection device according to an embodiment of the present application;

FIG. 3 is a schematic view of the internal structure of the projection apparatus shown in FIG. 2;

FIG. 4 is a schematic diagram of a portion of a projection apparatus according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a top case according to an embodiment of the present disclosure;

fig. 6 is a cross-sectional view of the sound box according to the embodiment of the present application when mounted on the front panel;

fig. 7 is a schematic structural view of the sound equipment when mounted on the front panel;

fig. 8 is a front view of the sound box when mounted on the front panel;

FIG. 9 is a front view of a top housing provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of a front case, a mesh enclosure bracket, and a mesh enclosure according to an embodiment of the present disclosure;

FIG. 11 is a second schematic diagram of a portion of a projection apparatus according to an embodiment of the present disclosure;

fig. 12 is a partial enlarged view at a in fig. 11.

Reference numerals:

100-projection television; 1-a projection device; 10-a housing; 11-bottom case; 12-top shell; 121-top plate; 1211-sky sound outlet; 122-front panel; 1221-a receiving chamber; 1222-a bottom wall; 1223-sidewalls; 1224-sky sound cavity; 1225-forward acoustic cavity; 1226-first connecting posts; 1227-a second connecting column; 1228-a card hole; 123-connecting part; 13-a rear shell; 14-side shells; 141-a vent; 15-a front shell; 151-sound holes; 152-screw holes; 153-locating holes; 154-clamping hook; 155-boss; 156-limit posts; 21-a light source; 22-ray machine; 23-lens; 24-a main board; 25-power panel; 26-a display panel; 27-a fan; 28-a thermally conductive assembly; 281-heat dissipation fins; 282-heat pipe; 2-a projection screen; 30-sounding; 301-forward sound; 302-sky sound; 31-sky tone mesh enclosure; 32-mesh enclosure; 33-a mesh enclosure bracket; 331-screw column; 332-positioning columns; 333-a via; 34-screw; 35-a back plate; 36-a motherboard bracket; 361-vent holes; 37-display panel fixing bracket; 371-a body portion; 372-first connection; 373-a first clamping portion; 38-shielding; 381-shielding; 382-a second connection; 3821-second connection hole; 383-a second clip portion; 39-sound effect lamp; 40-far field pickup module; 41-remote control head.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," "outer," "center," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present application.

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying 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 one or more such feature.

In the description of the present application, "/" means "or" unless otherwise indicated, for example, a/B may mean a or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Furthermore, "at least one" means one or more, and "a plurality" means two or more.

In the present application, unless explicitly specified and limited otherwise, the term "coupled" is to be construed broadly, and for example, "coupled" may be either fixedly coupled, detachably coupled, or integrally formed; can be directly connected or indirectly connected through an intermediate medium.

In the present embodiments, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

With the continued advancement of projection display technology, more and more users select projection televisions as display devices. Projection televisions typically include a projection device and a projection screen, and projection devices typically include a light source, a light engine, and a lens.

In order to play audio of a projection screen, a sound box is generally arranged in a casing of the projection device, and the audio is played through the sound box. In the related art, the sound is generally separately provided inside the housing.

In the related art, the housing includes a front case, a top case, and a bottom case. A portion of the top shell is disposed in spaced relation to the front shell. The sound is typically provided within the above-mentioned interval. In order to prevent resonance, a certain gap is reserved between the sound and the front and top shells at both sides.

Therefore, when the sound equipment is independently arranged in the shell, the occupied internal space of the sound equipment is larger, so that the whole volume of the projection equipment is larger, the use experience of a user is influenced, and the competitiveness of the market is reduced.

Based on this, the embodiment of the present application provides a projection television, as shown in fig. 1, fig. 1 is a schematic view of a usage state of a projection television 100 provided in the embodiment of the present application, where the projection television 100 may include a projection device 1 and a projection screen 2.

As shown in fig. 1, the projection television 100 may be disposed in use under the front of the projection screen 2, and the viewer may be positioned in front of the projection screen 2. The projection device 1 can emit light toward the projection screen 2, and the projection screen 2 can reflect the light to display a picture.

To enhance the projection effect, the projection screen 2 may select a projection screen 2 having fresnel microstructures. The fresnel microstructure can act to concentrate light so that the gain is high at the location facing the projection screen 2. Meanwhile, the Fresnel microstructure can reflect the ambient light to a region which is not watched by people, so that the ambient light resistance of the projection screen 2 is improved, and the contrast of a projection picture is further improved.

Furthermore, in order to enhance the projection effect of the projection screen 2, the projection screen 2 may comprise different functional layers. In order to enlarge the viewing angle of the projection screen 2, the projection screen 2 may comprise, in some embodiments, a diffusion layer (not shown in the figures) in which diffusion particles are distributed. When the light beam projected by the projection device 1 passes through the diffusion layer of the projection screen 2, the light beam is diffused by the diffusion particles and is scattered in different directions, so that the viewing angle of the projection screen 2 is improved.

To enhance the contrast of the projection screen 2, the projection screen 2 may further comprise a colored layer (not shown) within which a dark dye is distributed. When the external ambient light passes through the coloring layer, the external ambient light can be absorbed by the dark dye in the coloring layer, so that the capability of the projection screen 2 for resisting the ambient light is improved, and the contrast of a projection picture is improved.

It can be understood that the specific structure of the projection screen 2 provided in the embodiment of the present application may be selected according to practical needs, and as long as the projection screen can reflect the light projected by the projection device 1 and display a projection screen, the specific structure of the projection screen 2 can be used as the projection screen 2 in the embodiment of the present application.

Next, the projection apparatus 1 provided in the embodiment of the present application will be further described. First, as shown in fig. 1, the projection apparatus 1 may include a housing 10. The interior of the housing 10 may form a mounting cavity that may provide a mounting space for components of the projection device 1.

As shown in fig. 2, fig. 2 is a schematic structural diagram of a projection apparatus 1 according to an embodiment of the present application, and a housing 10 may include a bottom case 11, a top case 12, a rear case 13, a side case 14, and a front case 15. The top case 12, the rear case 13, the side case 14, the front case 15, and the bottom case 11 may be connected to each other to form a mounting cavity, thereby providing a mounting space for components of the projection apparatus 1. For example, as shown in fig. 2, the housing 10 may collectively define a shape similar to a rectangular parallelepiped.

As shown in fig. 3, fig. 3 is a schematic diagram illustrating an internal structure of the projection apparatus 1 shown in fig. 2, and the projection apparatus 1 may further include a light source 21, a light engine 22, and a lens 23. The light source 21, the light engine 22 and the lens 23 may constitute an engine system of the projection device 1. Wherein the light source 21 may be used to emit projection light. Wherein the light source 21 may comprise a laser, which may be used for emitting laser light.

The laser may be one of a single-color laser, a dual-color laser, and a tri-color laser. By way of example, the laser may be a trichromatic laser that emits blue, red and green laser light.

The wavelength of the laser emitted by the three-color laser can be selected according to actual requirements. For example, the wavelength of the blue laser light emitted from the laser may be set to 430nm to 460nm, the wavelength of the green laser light emitted may be set to 500nm to 540nm, and the wavelength of the red laser light emitted may be set to 610nm to 650nm. Of course, the projection device 1 may be a projection device 1 that emits ordinary light.

The light machine 22 may be located on the optical path of the projection light emitted by the light source 21, and may process the projection light emitted by the light source 21. Wherein the light engine 22 may comprise a light valve. The light valve may be configured to receive light from the light source 21 and modulate the light according to the image display signal to obtain a projection beam.

The specific type of light valve may be selected according to the actual situation, and the light valve may be a digital micromirror element chip, for example.

The lens 23 may be located on the optical path of the projection light passing through the optical machine 22, and the projection light may be projected onto the projection screen after passing through the lens 23, so that the viewer may view the projection screen. In the embodiment of the present application, the type of the lens 23 may be selected according to the actual situation. For example, the lens 23 may be a zoom lens, a fixed focus adjustable lens, or a fixed focus lens. Alternatively, the lens 23 may be an ultra-short focal projection lens or a long focal projection lens.

Further, with continued reference to fig. 3, the projection device 1 may further include a main board 24, a power supply board 25, and a display board 26. The main board 24, the power board 25 (shown in fig. 11), and the display board 26 described above may constitute a control system of the projection apparatus 1.

The power panel 25 may supply power to other components of the projection apparatus 1, ensuring normal operation of the projection apparatus 1.

The main board 24 may be connected to the power panel 25, and may control the power supply condition of the power panel 25. For example, the main board 24 may control the power board 25 to stop supplying power to other components in the projection apparatus 1 in response to a shutdown instruction. The main board 24 can also respond to the starting instruction to control the power board 25 to start the power supply to other components in the projection device 1, so as to ensure the normal operation of the projection device 1.

The display panel 26 may be connected to the main board 24. The main board 24 may transmit video image signals to the display board 26. Meanwhile, the display panel 26 may be connected to the light valve, and the display panel 26 may control the light valve according to the instruction. For example, the display panel 26 may control the deflection of the light valve to its initial position in response to a received shutdown command.

With continued reference to fig. 3, the projection device 1 may also include a fan 27 and a thermally conductive assembly 28. The fan 27 and the heat conducting assembly 28 may constitute a heat dissipation system of the projection device 1. The fan 27 may be disposed on the bottom case 11 and located at a side of the bottom case 11. External cool air may be blown in from one side and blown out from the other side by the fan 27. Meanwhile, other components of the projection device 1 may be located at one side of the fan 27, and the blown cold air may sufficiently dissipate heat with the components, thereby ensuring heat dissipation efficiency.

For example, as shown in fig. 2, the fan 27 may be disposed between the opposite side cases 14, and the fan 27 may be disposed near both side cases 14. Meanwhile, the cold air exchanges heat with the inside of the case 10 for convenience. The side case 14 may be provided with a vent 141 so that air flow can smoothly flow.

As shown in fig. 2, the number of fans 27 may be plural, and a plurality of fans 27 may be provided at one side of each side case 14, and a plurality of fans 27 may be provided side by side at one side of the side case 14. In this way, the external cold air can enter the shell 10 from different positions of the side shell 14 and flow out from the side shell 14 at the other side, and the components at all positions in the shell 10 can exchange heat effectively, so that the heat exchange effect is ensured.

As shown in fig. 3, the heat conductive assembly 28 may include a heat dissipation fin 281 and a heat pipe 282. Wherein the heat dissipation fins 281 may be located at a side of the fan 27 remote from the ventilation opening 141 (fig. 2). One end of the heat pipe 282 may be connected to the heat radiating fin 281, and the other end may be connected to a laser in the light source 21.

In this way, the heat generated by the laser can be transferred to the heat sink fins 281 through the heat pipes 282. Meanwhile, since the heat radiating fin 281 is located at a side of the fan 27 remote from the vent 141. The outside cold air can be blown in from one side of the fan 27 away from the radiating fins 281 under the action of the fan 27, passes through the radiating fins 281 and exchanges heat with the radiating fins 281, and the heat exchange effect is good.

In order to play the audio of the projection device 1, the projection device 1 may further comprise a sound 30, as shown in fig. 2. The audio of the projection device 1 can be played through the sound 30. In order to facilitate the setting of the audio and reduce the occupied space of the audio, the top case 12 provided in the embodiment of the present application may be used as a mounting structure of the sound equipment 30.

As shown in fig. 2, the top case 12 may include a top plate 121 and a front panel 122. The top plate 121 is disposed opposite to the bottom case 11, and the front panel 122 is disposed between the top case 12 and the bottom case 11 and connected to the top case 12. The sound box 30 may be connected to the front panel 122 and located between the top plate 121 and the bottom case 11.

At least part of the projection of sound box 30 onto bottom shell 11 is located within the projection of front panel 122 onto bottom shell 11 in the direction from top plate 121 toward bottom shell 11. That is, when the sound box 30 is mounted on the front panel 122, there is no reserved gap between the sound box 30 and the front panel 122, so that the occupied space of the sound box 30 in the projection device 1 can be reduced, and the overall volume of the projection device 1 can be reduced.

As shown in fig. 4, fig. 4 is one of partial schematic structural views of a projection apparatus 1 provided in an embodiment of the present application, a receiving cavity 1221 may be formed on a front panel 122, and an acoustic device 30 may be disposed in the receiving cavity 1221 and connected to the front panel 122. In this way, the accommodation chamber 1221 on the front panel 122 can provide an installation space for the sound box 30, and further, the size occupation in the arrangement direction of the sound box 30 and the front panel 122 can be reduced, and the external size of the projection apparatus 1 can be reduced.

For example, as shown in fig. 2, the front panel 122 may be disposed opposite to the front case 15, and the front panel 122 is formed with the receiving chamber 1221 described above at a side near the front case 15. The sound 30 may sound in a direction toward the front housing 15. Meanwhile, as shown in fig. 2, in order to facilitate sound emission, the front case 15 is provided with a sound through hole 151 to ensure sound transmission. The size of the sound through hole 151 may be larger than the sound emitting area of the sound box 30, so as to ensure normal transmission of sound.

Further, the front panel 122 may be integrally formed with the top plate 121. In the manufacturing process, the accommodating cavity 1221 on the front panel 122 can be integrally manufactured and formed through injection molding, so that the manufacturing mode is simple and easy to realize.

In order to achieve the connection of the bottom case 11 with the top case 12, the top case 12 may further include a connection portion 123 as shown in fig. 4. The connection portion 123 is located on a side of the top plate 121 near the front panel 122, and is connected to the top plate 121. Meanwhile, the connection portion 123 may be detachably connected with the bottom chassis 11 (fig. 2), thereby achieving connection between the top chassis 12 and the bottom chassis 11.

It is understood that the connection form of the connection portion 123 and the bottom case 11 may be designed according to practical situations. For example, the connection portion 123 may be formed with a connection hole. Correspondingly, a connecting column can be formed on the bottom shell 11, and the connecting column penetrates through the connecting hole and is connected with the connecting part 123.

In some embodiments, as shown in fig. 5, fig. 5 is a schematic structural diagram of a top case 12 provided in an embodiment of the present application, a receiving cavity 1221 may have a bottom wall 1222 and a side wall 1223. The side wall 1223 is located on one side of the bottom wall 1222, and is disposed around a circumference of the bottom wall 1222.

Thus, when the sound box 30 is disposed in the receiving chamber 1221, the bottom wall 1222 can support and fix the sound box 30. When the sound box 30 is mounted, as shown in fig. 6, fig. 6 is a cross-sectional view of the sound box 30 provided in the embodiment of the present application when mounted on the front panel 122, a worker can directly push the sound box 30 to abut against the bottom wall 1222, so as to conveniently confirm whether the sound box 30 is mounted in place. Of course, the receiving chamber 1221 may also have only annular side walls 1223.

In some embodiments, as shown in fig. 4, the number of receiving cavities 1221 may be multiple. The plurality of receiving cavities 1221 may include sky-sound cavities 1224 and forward-sound cavities 1225. The side wall 1223 (fig. 5) of the sky-sound cavity 1224 is provided with a sky-sound outlet 1211. Illustratively, as shown in fig. 4, the top plate 121 forms a part of the side wall 1223 of the sky-sound cavity 1224, and the sky-sound outlet 1211 is formed in the top plate 121.

Meanwhile, as shown in fig. 4, the projection apparatus 1 may further include a sky-sound screen 31, and the sky-sound screen 31 may be disposed at the sky-sound outlet 1211 to cover the sky-sound outlet 1211. The sky tone screen 31 can play a protective role to prevent external dust from entering the interior of the sky tone cavity 1224 through the sky tone outlet 1211.

Meanwhile, as shown in fig. 4, the sound 30 may include a forward sound 301 and a sky sound 302. As shown in fig. 7, fig. 7 is a schematic structural diagram of the sound box 30 when mounted on the front panel 122, and the forward sound box 301 may be disposed in the forward sound cavity 1225. The forward sound 301 may sound in a direction away from the bottom wall 1222 (fig. 5) of the forward sound cavity 1225. Sky sound 302 may be disposed within sky sound cavity 1224 and sky sound 302 may sound in a direction toward sky sound outlet 1211 (fig. 4).

Therefore, by setting the sky sound 302 and the forward sound 301, the audio can be emitted towards different directions, so that the audio playing effect of the projection device 1 is improved, and sky sound equivalent effects are realized. Meanwhile, the sky sound equipment 302 and the forward sound equipment 301 are respectively arranged in the sky sound cavity 1224 and the forward sound cavity 1225, so that the problem that the space occupation is large when the sky sound equipment 302 and the forward sound equipment 301 are independently arranged is avoided, the installation space is saved, and the space occupation is reduced.

In some embodiments, as shown in fig. 8, fig. 8 is a front view of the sound box 30 when mounted on the front panel 122, and the number of sky sound boxes 302 and the number of forward sound boxes 301 may be plural. In this way, the audio playing effect is improved by the cooperation of the plurality of sky sounds 302 and the plurality of forward sounds 301.

As shown in fig. 8, for example, the number of sky sounds 302 and the number of forward sounds 301 are two. One of the sky stereo 302 and the forward stereo 301 is provided near one side of the front panel 122, and the other sky stereo 302 and the forward stereo 301 is provided near the other side of the front panel 122. In this way, the two side edges of the front panel 122 are respectively provided with the sky sound 302 and the forward sound 301, so that the sound effect is better and the sound is more balanced.

In some embodiments, as shown in fig. 9, fig. 9 is a front view of the top case 12 provided in the embodiments of the present application, the bottom wall 1222 of the forward sound cavity 1225 may be formed with a first connecting post 1226. The projection device 1 may comprise a first fastener (not shown in the figures).

The first fastener may extend through the forward sound 301 and into the first connecting post 1226 to connect with the first connecting post 1226. The forward sound 301 may be coupled to the first coupling post 1226 by a first fastener. Thus, by the first fastener, the forward sound 301 can be firmly fixed in the forward sound chamber 1225, and the installation of the forward sound 301 is more stable.

The first fastener may be a screw, for example. The forward sound 301 may be perforated so that the first fastener can pass through smoothly. Meanwhile, the first connecting column 1226 may be provided with a threaded hole to enable connection between the first fastener and the first connecting column 1226.

In some embodiments, as shown in fig. 9, a sidewall 1223 of the sky-sound cavity 1224 may be formed with a second connection post 1227. The second connecting post 1227 is disposed opposite to the plane of the sky-sound output hole 1211 (fig. 4). As shown in fig. 9, for example, the sky-sound outlet 1211 may be formed at an upper position in the side wall 1223 of the sky-sound cavity 1224 shown in fig. 9, and the second connection pole 1227 may be formed at a lower position.

The projection device 1 may further comprise a second fastener (not shown in the figures). The second fastener may extend through the sky stereo 302 and into the second connecting column 1227 to connect with the second connecting column 1227. Sky sound 302 can be connected to second connecting column 1227 by a second fastener. Thus, the sky sound 302 can be firmly fixed in the sky sound cavity 1224 by the second fastening piece, and the installation of the sky sound 302 is more stable.

The second fastener may also be a screw, for example. The sky sound 302 may also be provided with holes so that the second fastening member can pass through smoothly. Meanwhile, the second connecting post 1227 may be provided with a threaded hole to enable connection between the second fastener and the second connecting post 1227.

As shown in fig. 2, in some embodiments, the projection device 1 may further include a mesh enclosure 32 and a mesh enclosure bracket 33. The mesh enclosure bracket 33 may be connected to the front case 15, and located on a side of the front case 15 away from the rear case 13. The mesh enclosure 32 may be disposed on the mesh enclosure bracket 33 at a side of the mesh enclosure bracket 33 away from the front case 15.

The mesh enclosure 32 can be fixed through the mesh enclosure bracket 33, and the mesh enclosure 32 can be conveniently fixed. Meanwhile, the mesh enclosure bracket 33 may be fixed to the front case 15, so that the mesh enclosure 32 may play a protective role, preventing external dust from entering the inside of the housing 10 through the sound passing holes 151.

As shown in fig. 10, fig. 10 is a schematic structural diagram of the front case 15, the mesh enclosure bracket 33, and the mesh enclosure 32 provided in the embodiment of the present application, and the mesh enclosure 32 may be directly adhered to the mesh enclosure bracket 33.

A screw column 331 and a positioning column 332 may be formed at a side of the mesh enclosure bracket 33 adjacent to the front case 15. Correspondingly, the front shell 15 is provided with screw holes 152 and positioning holes 153. When the mesh enclosure bracket 33 and the front case 15 are assembled, the positioning posts 332 may be inserted into the positioning holes 153 to complete the pre-positioning of the mesh enclosure bracket 33 and the front case 15. The screw 34 may then be threaded into the screw hole 152 and extend into the screw post 331 to be threadably coupled to the screw post 331. Thereby, the assembled connection between the mesh enclosure bracket 33 and the front case 15 can be achieved.

It will be appreciated that, as shown in fig. 10, the mesh enclosure bracket 33 is also provided with a through hole 333 so that sound can be smoothly transmitted.

The front housing 15 may be detachably connected with the front panel 122. As shown in fig. 10, a hook 154 may be formed on a side of the front case 15 away from the mesh enclosure bracket 33. Accordingly, as shown in fig. 9, the front panel 122 may be correspondingly provided with a fastening hole 1228. Thus, the coupling between the front case 15 and the front panel 122 can be achieved by the coupling between the hooks 154 and the hook holes 1228.

In addition, as shown in fig. 10, a boss 155, a limiting post 156, and the like may be formed on a side of the front case 15 away from the mesh enclosure bracket 33. Accordingly, the front panel 122 may also have a corresponding aperture structure formed therein. After the boss 155 and the limiting post 156 pass through the corresponding hole structures on the front panel 122, the boss 155 and the screw 34 may be connected to further strengthen the connection between the front panel 122 and the front housing 15.

In some embodiments, as shown in fig. 11, fig. 11 is a second schematic view of a portion of the structure of the projection apparatus 1 provided in the embodiment of the present application, the projection apparatus 1 may further include a back plate 35, where the back plate 35 may be disposed on the bottom case 11 (fig. 2) and connected to the bottom case 11. The power panel 25 may be located on a side of the back panel 35 adjacent to the top panel 121 (fig. 2) and connected to the back panel 35, i.e., the power panel 25 may be disposed on the back panel 35. In this way, the power panel 25 can be mounted and fixed by the back plate 35.

Meanwhile, as shown in fig. 11, in order to fix the main board 24, the projection apparatus 1 may further include a main board bracket 36. The motherboard bracket 36 is located on a side of the back plate 35 near the top plate 121 (fig. 2), and is connected to the back plate 35, i.e. the motherboard bracket 36 is disposed on the back plate 35.

As shown in fig. 11, a portion of the motherboard bracket 36 may be located on a side of the power board 25 away from the back plate 35, and is disposed opposite to the back plate 35 at a distance. That is, as shown in fig. 11, a part of the motherboard bracket 36 forms a laminated structure with the back plate 35 in a direction perpendicular to the back plate 35. Wherein the motherboard bracket 36 may be made of metal.

Thus, as shown in fig. 11, the motherboard 24 may be disposed on the motherboard bracket 36, on a side of the motherboard bracket 36 away from the power panel 25, opposite the power panel 25. Thus, by the above-described main board holder 36, the power board 25 and the main board 24 can be stacked, and the power board 25 and the main board 24 are disposed at different heights in the direction perpendicular to the back board 35, thereby reducing the space occupation in the direction parallel to the back board 35.

The specific structure of the motherboard bracket 36 may be set according to practical situations. For example, as shown in fig. 11, the motherboard bracket 36 may be a U-shaped board-like structure. The main board bracket 36 and the back board 35 enclose an installation space in which the power board 25 is located.

For example, as shown in fig. 3, the motherboard bracket 36 may be located on one side of the fan 27. At this time, as shown in fig. 11, a vent 361 may be formed in the main board bracket 36 at a position opposite to the fan 27 to ensure smooth flow of the air.

With continued reference to fig. 11, to secure the display panel 26, the projection apparatus 1 may further include a display panel securing bracket 37. The display panel fixing bracket 37 is located at a side of the back plate 35 near the top plate 121 (fig. 2), and is connected to the back plate 35. The display panel 26 may be disposed on the display panel fixing bracket 37. Thus, the display panel 26 can be easily mounted and fixed by the display panel fixing bracket 37.

For example, as shown in fig. 11, the display panel fixing bracket 37 may be positioned at one side of the main board bracket 36 to be perpendicular to the back plate 35. In this way, the display panel 26 may be disposed at one side of the display panel fixing bracket 37 perpendicularly to the back plate 35. When the display panel 26 is mounted and dismounted, a worker can more conveniently mount and dismount the display panel 26.

As can be seen from fig. 3, the external cool air can flow under the driving of the fan 27, and heat exchange is performed by passing through the components of the projection apparatus 1. Referring to fig. 11, the air flow may flow in a first direction X shown in fig. 11.

Accordingly, in order to facilitate the flow of the air current, the display panel fixing bracket 37 may be parallel to the first direction X. Thus, the display panel fixing bracket 37 does not affect the flow of the air flow, ensuring the smooth flow of the air flow.

With continued reference to fig. 11, in some embodiments, the projection device 1 may also include a shield 38. The shield 38 is located on a side of the display panel 26 remote from the back plate 35 and is connected to the display panel mounting bracket 37.

As can be seen from the above, the display panel 26 may be connected to a light valve. Wherein the light valve and the display panel 26 may be connected by high-speed signal lines. Since the shielding member 38 is located at a side of the display panel 26 away from the back plate 35, the shielding member 38 can shield electromagnetic interference of the high-speed signal lines as described above, preventing electromagnetic signals from being transmitted in a direction in which the shielding member 38 is away from the display panel 26. Wherein the display panel fixing bracket 37 and the shielding member 38 may be made of metal.

In some embodiments, to facilitate connection of the shield 38 and the display panel fixing bracket 37, as shown in fig. 12, fig. 12 is a partial enlarged view at a in fig. 11, the display panel fixing bracket 37 may include a main body portion 371 and a first connection portion 372. The main body 371 may be connected to the back plate 35, and the display panel 26 may be disposed on the main body 371.

The first connection portion 372 is located on a side of the main body portion 371 away from the back plate 35, and is connected to the main body portion 371. The first connection portion 372 is disposed in parallel with the back plate 35 at a distance therefrom, and is provided with a first connection hole (not shown). Accordingly, as shown in fig. 12, the shield 38 includes a shield portion 381 and a second connection portion 382. The shielding portion 381 is located on a side of the display panel 26 remote from the back plate 35.

The second connection part 382 is connected to the shielding part 381, and a second connection hole 3821 is formed. Since the first connecting portion 372 is spaced apart from the back plate 35 in parallel, the second connecting hole 3821 of the second connecting portion 382 is disposed opposite to the first connecting hole.

Meanwhile, in order to connect the first connection portion 372 and the second connection portion 382, the projection apparatus 1 further includes a third fastener (not shown in the drawings). The third fastening member is inserted into the first and second connection holes 3821, and the shield member 38 and the display panel fixing bracket 37 are connected by the third fastening member. Thereby, the connection between the display panel fixing bracket 37 and the shield member 38 is firmer and the connection is more stable by the third fastener.

In some embodiments, as shown in fig. 12, the display panel fixing bracket 37 may further include a first clamping portion 373. The first engagement portion 373 is located on a side of the main body portion 371 away from the back plate 35, and is connected to the main body portion 371. The shield 38 also includes a second clip portion 383. The second engaging portion 383 is connected to the shielding portion 381 and extends in a direction toward the back plate 35.

As shown in fig. 12, the first clamping portion 373 is located between the second connecting portion 382 and the second clamping portion 383, and both sides thereof abut against the second connecting portion 382 and the second clamping portion 383, respectively. In this way, when assembling the shielding member 38 and the display panel fixing bracket 37, the worker can first clamp the first clamping portion 373 between the second connecting portion 382 and the second clamping portion 383, so as to perform a limiting function. Then, the third fastener is used to penetrate through the first connecting hole and the second connecting hole 3821 for connection, so that connection is more convenient.

It is understood that the projection device 1 provided in the embodiment of the present application may further include other components. For example, as shown in fig. 4, the projection device 1 may further comprise an audio light 39. The sound effect lamp 39 may be fixed to the front panel 122. In this example, the sound effect lamp 39 may change the brightness according to the sound level of the sound 30.

Further, as shown in fig. 2, the projection apparatus 1 may further include a far-field pickup module 40 and a remote control head 41, and the far-field pickup module 40 may be provided on the bottom chassis 11 for picking up sounds at a long distance. The remote control head 41 may be used to receive signals.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A projection device, comprising:

a bottom case;

the top shell is connected with the bottom shell; the method comprises the steps of,

the sound equipment is arranged on the top shell;

wherein, the top shell includes:

the top plate and the bottom shell are arranged at opposite intervals; the method comprises the steps of,

a front panel located between the top plate and the bottom case; the front panel is connected with the top plate;

wherein the front panel is formed with a receiving cavity; the sound equipment is arranged in the accommodating cavity and is connected with the front panel.

2. The projection device of claim 1, wherein the receiving cavity has a bottom wall and a side wall; the side wall is positioned on one side of the bottom wall; the side wall is arranged around the circumference of the bottom wall and is connected with the bottom wall.

3. The projection apparatus according to claim 2, wherein the number of the accommodation cavities is plural; the plurality of accommodating cavities comprise sky sound cavities and forward sound cavities; a sky sound outlet hole is formed in the side wall of the sky sound cavity;

the sound equipment includes:

the forward sound box is arranged in the forward sound cavity; the forward sound box emits sound in a direction away from the bottom wall of the forward sound cavity; the method comprises the steps of,

the sky sound is arranged in the sky sound cavity; and the sky sound is emitted towards the sky sound emitting hole.

4. A projection apparatus according to claim 3 wherein the bottom wall of the forward sound chamber is formed with a first connecting post; the projection apparatus further includes:

the first fastener penetrates through the forward sound box and stretches into the first connecting column to be connected with the first connecting column; the forward sound box is connected with the first connecting column through the first fastening piece.

5. A projection apparatus according to claim 3 wherein the side wall of the sky-sound cavity is formed with a second connecting post; the second connecting column is arranged opposite to the plane where the sky sound outlet hole is; the projection apparatus further includes:

the second fastening piece penetrates through the sky sound and stretches into the second connecting column to be connected with the second connecting column; the sky sound is connected with the second connecting column through the second fastening piece.

6. The projection device of any one of claims 1-5, further comprising:

the backboard is positioned on one side of the bottom shell, which is close to the top plate, and is connected with the bottom shell;

the power panel is positioned on one side of the backboard, close to the top plate, and is connected with the backboard;

the main board bracket is positioned on one side of the back board, which is close to the top board, and is connected with the back board; one part of the main board support is positioned at one side of the power board far away from the backboard and is arranged opposite to the backboard at intervals; the method comprises the steps of,

the main board is arranged on the main board bracket; the mainboard with the power strip sets up relatively, is located the mainboard support is kept away from one side of power strip.

7. The projection device of claim 6, further comprising:

the display panel fixing bracket is positioned on one side of the backboard, which is close to the top plate, and is connected with the backboard;

the display panel is arranged on the display panel fixing bracket; the method comprises the steps of,

and the shielding piece is positioned on one side of the display panel away from the backboard and is connected with the display panel fixing bracket.

8. The projection device of claim 7, wherein the display panel fixing bracket comprises:

a main body portion connected to the back plate; the display panel is arranged on one side of the main body part and is connected with the main body part; the method comprises the steps of,

the first connecting part is positioned at one side of the main body part far away from the back plate and is connected with the main body part; the first connecting part and the back plate are arranged in parallel at intervals, and a first connecting hole is formed;

the shield includes:

the shielding part is positioned at one side of the display panel far away from the backboard; the method comprises the steps of,

a second connection part connected with the shielding part; the second connecting part is provided with a second connecting hole;

the projection apparatus further includes:

the third fastening piece is arranged in the first connecting hole and the second connecting hole in a penetrating mode; the shielding member and the display panel fixing bracket are connected through the third fastener.

9. The projection device of claim 8, wherein the display panel mounting bracket further comprises:

the first clamping part is positioned at one side of the main body part far away from the back plate and is connected with the main body part;

the shield further includes:

the second clamping part is connected with the shielding part and extends towards the direction close to the backboard;

the first clamping part is positioned between the second connecting part and the second clamping part, and two sides of the first clamping part are respectively abutted against the second connecting part and the second clamping part.

10. A projection device, comprising: a bottom case;

the top shell is connected with the bottom shell; the method comprises the steps of,

the sound equipment is arranged on the top shell;

wherein, the top shell includes:

the top plate and the bottom shell are arranged at opposite intervals; the method comprises the steps of,

a front panel located between the top plate and the bottom case; the front panel is connected with the top plate;

the sound equipment is connected with the front panel, is located between the top plate and the bottom shell, and at least part of projection of the sound equipment on the bottom shell is located in projection of the front panel on the bottom shell in the direction from the top plate to the bottom shell.