CN210894982U

CN210894982U - Projection system and projection screen

Info

Publication number: CN210894982U
Application number: CN201921790428.5U
Authority: CN
Inventors: 张健; 杨长明; 周伯禹
Original assignee: Qingdao Hisense Laser Display Co Ltd
Current assignee: Qingdao Hisense Laser Display Co Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-30
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a projection system and projection screen belongs to projection technical field. The projection system includes: projection equipment and projection screen, projection screen includes: the device comprises a fixed frame, an optical screen, a sound-emitting board, one or more exciters and one or more supporting mechanisms, wherein each supporting mechanism comprises a hanging frame and a first elastic piece; the fixed frame is used for fixedly connecting the sound-emitting plate and the optical screen, the one or more exciters are fixed on the sound-emitting plate, the supporting arm of the hanging frame extends into the hanging groove of the fixed frame, the first elastic piece is buckled on the supporting arm of the hanging frame, the projection equipment is electrically connected with the one or more exciters, and the one or more exciters can excite the sound-emitting plate to vibrate to emit sound. The utility model discloses a fixed frame fixes optical screen and sound production board in same region to can have the effect that sound sent from the picture, the production of noise between stores pylon and the fixed frame has been avoided through the elastic deformation of first elastic component simultaneously.

Description

Projection system and projection screen

Technical Field

The utility model relates to a projection technology field, in particular to projection system and projection screen.

Background

With the continuous development of science and technology, projection systems are increasingly applied to the work and life of people. Currently, projection systems mainly include a projection device and a projection screen. The projection device is mainly used for emitting projection light, the projection screen is fixed on the supporting body and used for reflecting the projection light emitted by the projection device so as to realize projection of pictures.

In the related art, taking a projection system as an example of a laser television, the laser television may include a projection host and an optical screen, where the projection host may emit projection light and play audio data, and the optical screen may receive the projection light emitted by the projection host and form a picture after reflection.

However, when the display of the picture and the playing of the audio data are realized through the above manner, the projection host and the optical screen are necessarily not at the same position, so that the condition that the picture and the sound are not uniform is easily caused, and the projection effect of the projection system is further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a projection system and projection screen can solve the problem that picture and sound are nonuniform among the correlation technique. The technical scheme is as follows:

in one aspect, a projection system, the projection system comprising: projection equipment and projection screen, the projection screen includes: the device comprises a fixed frame, an optical screen, a sound-emitting board, one or more exciters and one or more supporting mechanisms, wherein each supporting mechanism comprises a hanging frame and a first elastic piece;

the fixed frame is used for fixedly connecting the sound generating plate and the optical screen, the one or more exciters are fixed on the sound generating plate, the supporting arm of the hanging rack extends into the hanging groove of the fixed frame, the first elastic piece is buckled on the supporting arm of the hanging rack and can fill a gap between the supporting arm of the hanging rack and the side wall of the hanging groove, and the fixed arm of the hanging rack is used for being connected with the supporting body;

the projection device is electrically connected with the one or more exciters and can emit projection light to the optical screen, and the one or more exciters can excite the sound-emitting plate to vibrate to emit sound.

In one possible implementation, each supporting mechanism further comprises a second elastic piece and a fixed piece;

the fixing arm of the hanging rack is provided with a through hole, the side wall of the second elastic piece is provided with a circle of groove, the fixing arm of the hanging rack can be clamped into the groove based on the through hole, and the fixing piece penetrates through the through hole and the second elastic piece and is connected with the supporting body.

Optionally, each supporting mechanism further comprises a gasket, and the gasket is sleeved on the fixing piece and can be pressed on the end face of the second elastic piece.

Optionally, the size of the spacer is larger than the size of the through hole.

Optionally, the first elastic member is of an S-shaped structure, and the first elastic member is further fastened to a side wall of the hanging groove.

Optionally, a vertical distance between a first side wall of the first elastic member and the connecting wall is equal to a thickness of the supporting arm of the hanger, and a vertical distance between a second side wall of the first elastic member and the connecting wall is greater than or equal to a thickness of the side wall of the hanging slot.

Optionally, a connection portion between the second side wall of the first elastic member and the connection wall is fixed on the support platform of the hanger by a double-sided adhesive tape.

Optionally, the first elastic member is of a U-shaped structure, and a vertical distance between a first side wall and a second side wall of the first elastic member is equal to a thickness of the support arm of the hanger.

Optionally, the hardness of the first elastic member is within a hardness threshold range.

In another aspect, a projection screen, the projection screen comprising: the device comprises a fixed frame, an optical screen, a sound-emitting board, one or more exciters and one or more supporting mechanisms, wherein each supporting mechanism comprises a hanging frame and a first elastic piece;

the one or more exciters are used for being electrically connected with a projection device, the one or more exciters can excite the sound-emitting plate to vibrate to emit sound, and the optical screen is used for receiving projection light emitted by the projection device.

The utility model provides a technical scheme's beneficial effect can include at least:

the optical screen can reflect the projection light emitted by the projection equipment, so that the projection of the picture is realized. In addition, the projection apparatus may drive each of the exciters to vibrate, thereby exciting the sound emitting panels to vibrate in common to emit sound through the sound emitting panels. Because the sound board and the optical screen are fixed on the fixed frame, the sound board and the optical screen can be ensured to be in the same area, so that the effect of sound emitted from the picture can be achieved, the condition that the picture and the sound are not uniform is avoided, and the projection effect of the projection system is improved. The hanger may support the fixed frame. The first elastic piece can avoid rigid contact between the hanging rack and the fixed frame, can absorb vibration of the fixed frame, and effectively avoids noise between the hanging rack and the vibrating fixed frame.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a projection system according to an embodiment of the present invention;

fig. 2 is a schematic rear view of a projection screen according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a supporting mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first elastic member according to an embodiment of the present invention;

fig. 5 is a schematic side view of a projection screen according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a second elastic member according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a hanging rack and a second elastic member according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another supporting mechanism provided in the embodiment of the present invention;

fig. 9 is a schematic side view of another projection screen according to an embodiment of the present invention.

Reference numerals:

1: a projection device; 2: a projection screen;

21: a fixed frame; 22: an optical screen; 23: a sound board; 24: an exciter; 25: supporting mechanism

211: hanging a groove; 251: a hanger; 252: a first elastic member; 253: a second elastic member; 254: a fixing member; 255: a gasket;

2511: a support arm; 2512: a fixed arm; 2513: a support platform; 2521: a first side wall; 2522: a connecting wall; 2523: a second side wall.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 illustrates a schematic structural diagram of a projection system according to an embodiment of the present invention, fig. 2 illustrates a schematic structural diagram of a rear view of a projection screen according to an embodiment of the present invention, and fig. 3 illustrates a schematic structural diagram of a supporting mechanism according to an embodiment of the present invention. As shown in fig. 1, 2 and 3, the projection system includes: projection device 1 and projection screen 2, projection screen 2 includes: a fixed frame 21, an optical screen 22 (not shown in the figure), a sound-emitting panel 23, one or more actuators 24, one or more support mechanisms 25, each support mechanism 25 comprising a hanger 251 and a first elastic member 252; the fixed frame 21 is used for fixedly connecting the sound-emitting plate 23 and the optical screen 22, the one or more exciters 24 are fixed on the sound-emitting plate 23, the support arm 2511 of the hanging rack 251 extends into the hanging slot 211 of the fixed frame 21, the first elastic element 252 is buckled on the support arm 2511 of the hanging rack 251 and can fill the gap between the support arm 2511 of the hanging rack 251 and the side wall of the hanging slot 211, and the fixed arm 2512 of the hanging rack 251 is used for connecting with the support body; the projection device 1 is electrically connected to one or more actuators 24 and is capable of emitting projection light to the optical screen 22, and the one or more actuators 24 are capable of exciting the sound emitting panel 23 to vibrate to emit sound.

The embodiment of the present invention provides an optical screen 22 can reflect the projection light emitted by projection device 1, thereby realizing the projection of the picture. In addition, the projection apparatus 1 may drive each of the exciters 24 to vibrate, thereby exciting the sound emitting panels 23 to vibrate in common to emit sound through the sound emitting panels 23. Because the sound-emitting plate 23 and the optical screen 22 are both fixed on the fixed frame 21, the sound-emitting plate 23 and the optical screen 22 can be ensured to be in the same area, so that the effect of emitting sound from the picture can be achieved, the condition that the picture and the sound are not uniform is avoided, and the projection effect of the projection system is improved. The hanging rack 251 can support the fixed frame 21, and the first elastic member 252 can prevent the hanging rack 251 from being in hard contact with the fixed frame 21, and can absorb the vibration of the fixed frame 21, thereby effectively preventing noise from being generated between the hanging rack 251 and the vibrating fixed frame 21.

A connecting section may be disposed between the supporting arm 2511 and the fixing arm 2512 of the hanging rack 251 to achieve connection between the supporting arm 2511 and the fixing arm 2512. Support arm 2511, the connecting end, and stationary arm 2512 may be connected in a U-shaped configuration, or a configuration in which the end of support arm 2511 distal from the connecting segment faces in an opposite direction to the end of stationary arm 2512 distal from the connecting segment. The supporting arm 2511, the connecting end and the fixing arm 2512 can be integrally formed with each other to increase the overall strength of the hanging rack 251.

Illustratively, support arm 2511 is attached perpendicularly to a first end of the connecting segment and stationary arm 2512 is attached perpendicularly to a second end of the connecting segment. At this point, the connecting segment may act as a support platform 2513.

The first elastic element 252 may be made of silicon rubber or other materials as long as it has buffering, vibration absorbing and load bearing capabilities.

In some embodiments, the first elastic member 252 may have a U-shaped structure, and a vertical distance between a first side wall and a second side wall of the first elastic member 252 is equal to a thickness of the support arm 2511 of the hanger 251. Thus, the supporting arm 2511 of the hanging rack 251 can be clamped into the gap between the first side wall and the second side wall of the first elastic element 252, and when the supporting arm 2511 extends into the hanging slot 211 of the fixed frame 21, the gap between the supporting arm 2511 of the hanging rack 251 and the hanging slot 211 can be filled through the first side wall and the second side wall of the first elastic element 252, so as to avoid hard contact between the supporting arm 2511 and the hanging slot 211, and thus, the vibration reduction between the hanging rack 251 and the hanging slot 211 is realized.

The sum of the thickness of the first sidewall and the thickness of the second sidewall of the first elastic member 252 and the thickness of the supporting arm 2511 may be equal to the vertical distance between two opposite inner walls of the hanging slot 211, so as to avoid the shaking that may occur between the first elastic member 252 and the fixed frame 21.

In other embodiments, the first elastic member 252 has an S-shaped structure, and the first elastic member 252 can be buckled on the sidewall of the hanging slot 211.

The first elastic member 252 having an S-shaped structure is a structure in which two U-shaped grooves are formed and the openings of the two U-shaped grooves face opposite directions. When the supporting arm 2511 of the hanging rack 251 extends into the hanging groove 211 to support the fixed frame 21, the gap between the supporting arm 2511 and the side wall of the hanging groove 211 can be filled through the two side walls of the first U-shaped groove on the first elastic element 252 so as to realize primary vibration reduction between the hanging rack 251 and the hanging groove 211, and the gap between the supporting platform 2513 and the side wall of the hanging groove 211 is filled through the bottom of the second U-shaped groove so as to realize secondary vibration reduction between the hanging rack 251 and the hanging groove 211.

The first elastic element 252 includes a first sidewall 2521, a first connection portion, a connection wall 2522, a second connection portion, and a second sidewall 2523, the first sidewall 2521, the connection wall 2522, and the second sidewall 2523 may be parallel to each other, the first sidewall 2521 and the connection wall 2522 can be connected by the first connection portion to form a first U-shaped groove, and the second sidewall 2523 and the connection wall 2522 can be connected by the second connection portion to form a second U-shaped groove.

The sum of the thickness of the first sidewall 2521, the thickness of the connecting wall 2522, and the thickness of the supporting arm 2511 of the first elastic member 252 may be equal to the vertical distance between two opposite inner walls of the hanging slot 211, so as to avoid the possible shaking between the first elastic member 252 and the fixed frame 21.

It should be noted that, in order to realize that the first U-shaped groove of the first elastic element 252 can be buckled on the supporting arm 2511 and the second U-shaped groove can be buckled on the side wall of the hanging groove 211, the vertical distance between the first side wall 2521 and the connecting wall 2522 of the first elastic element 252 can be equal to the thickness of the supporting arm 2511 of the hanging rack 251, and the vertical distance between the second side wall 2523 and the connecting wall 2522 of the first elastic element 252 can be greater than or equal to the thickness of the side wall of the hanging groove 211.

Wherein, when the vertical distance between the second sidewall 2523 of the first elastic member 252 and the connecting wall 2522 is equal to the thickness of the sidewall of the hanging slot 211, the second U-shaped slot of the first elastic member 252 can be more tightly buckled on the sidewall of the hanging slot 211 to further secure the connection between the hanging rack 251 and the fixed frame 21. When the vertical distance between the second sidewall 2523 of the first elastic member 252 and the connecting wall 2522 is greater than the thickness of the sidewall of the hanging slot 211, it is convenient for the hanging slot 211 to be smoothly clamped into the gap between the second sidewall 2523 of the first elastic member 252 and the connecting wall 2522 when the fixed frame 21 is hung.

Of course, in order to realize that the first U-shaped groove of the first elastic element 252 can be buckled on the supporting arm 2511 and the second U-shaped groove can be buckled on the side wall of the hanging groove 211, the vertical distance between the first side wall 2521 and the connecting wall 2522 of the first elastic element 252 can also be slightly smaller than the thickness of the supporting arm 2511 of the hanging rack 251, and the vertical distance between the second side wall 2523 and the connecting wall 2522 of the first elastic element 252 can also be slightly smaller than the thickness of the side wall of the hanging groove 211, so that the fit between the first elastic element 252 and the hanging rack 251 and the hanging groove 211 can be interference fit, and the tightness among the hanging rack 251, the first elastic element 252 and the fixed frame 21 can be ensured.

In some embodiments, the second connection portion between the second sidewall 2523 and the connection wall 2522 of the first elastic member 252 may be fixed on the support platform 2513 of the rack 251 by a double-sided adhesive tape, which may prevent the first elastic member 252 from being displaced and falling off. The first side wall 2521 and the connecting wall 2522 of the first elastic member 252 can also be fixed on the supporting arm 2511 of the rack 251 by a double-sided adhesive tape, so as to achieve a more compact fixation of the first elastic member 252.

In some embodiments, the hardness of the first elastic member 252 may be within a hardness threshold range. The hardness threshold range may be a hardness range that ensures that the first elastic member 252 is not easily deformed and has a certain shock absorbing capability. If the hardness of the first elastic member 252 is too low, it is easily deformed by an external force, and cannot tightly fasten the hanging rack 251 and the fixing frame 21, which easily causes the fixing frame 21 to shake and tilt, and thus the fixing frame 21 is easily dropped. If the hardness of the first elastic member 252 is too high, the vibration absorbing ability of the first elastic member 252 may be weakened. For example, the hardness of the first elastic member 252 may be controlled within a range of 30 degrees to 40 degrees shore.

In some embodiments, the opening edge of the first U-shaped groove and the opening edge of the second U-shaped groove of the first elastic member 252 may be chamfered, so that the first U-shaped groove can be smoothly buckled on the supporting arm 2511 during installation, and the second U-shaped groove can be smoothly buckled on the side wall of the hanging groove 211. Of course, the two ends of the first connection portion of the first elastic element 252, which are connected to the first sidewall 2521 and the connection wall 2522, may also be chamfered, so that the first sidewall 2521 and the connection wall 2522 of the first elastic element 252 can more smoothly extend into the hanging groove 211.

In some embodiments, each support mechanism 25 may further include a second elastic member 253 and a fixing member 254; a through hole is formed in the fixing arm 2512 of the hanging rack 251, a circle of groove is formed in the side wall of the second elastic piece 253, the fixing arm 2512 of the hanging rack 251 can be clamped into the groove based on the through hole, and the fixing piece 254 penetrates through the through hole and the second elastic piece 253 and is connected with the supporting body.

The second elastic member 253 may be made of silicone or other materials as long as it has buffering, vibration absorbing and bearing capabilities. In this way, since the second elastic member 253 can prevent the fixed arm 2512 of the hanger 251 from being in contact with the fixed member 254 and the fixed arm 2512 of the hanger 251 from being in contact with the supporting body, and the second elastic member 253 has the functions of buffering and absorbing vibration, noise can be prevented from being generated between the fixed member 254 and the fixed arm 2512 and between the supporting body and the fixed arm 2512, and vibration can be reduced between the hanger 251 and the supporting body.

The end surface of the second elastic member 253 may be circular, square or other shapes. In order to enable the second elastic member 253 to be closely fitted on the fixing arm 2512 of the hanger 251 based on the through hole on the hanger 251, the shape and size of the cross section at the groove of the second elastic member 253 may be the same as those of the through hole on the hanger 251, and the through hole may be circular, square or other shapes.

The fixing member 254 may include a fixing screw or other fixing body, as long as the second elastic member 253 and the hanging rack 251 can be fastened to the supporting body.

In some embodiments, each supporting mechanism 25 may further include a spacer 255, and the spacer 255 is sleeved on the fixing member 254 and can press against the end face of the second elastic member 253.

When the fixing member 254 is a screw, the spacer 255 may be sleeved on the screw rod of the fixing screw, and contacted with the screw head, and the screw head is pressed against the end surface of the second elastic member 253.

In an actual use process, the second elastic member 253 is made of a soft material, and when the hanger 251 receives an external force perpendicular to the end surface direction of the second elastic member 253, a certain force is applied to the second elastic member 253, so that the second elastic member 253 is easily elastically deformed, and the hanger 251 is easily separated from the second elastic member 253 based on the through hole. Therefore, the size of the spacer 255 may be larger than that of the through hole, so that the escape of the hanger 251 may be blocked, and at the same time, an external force may be distributed to the spacer 255 having a large area, so that the second elastic member 253 is not easily deformed. The shape of the shim 255 may be circular, square, or other shapes.

Wherein, gasket 255 can be through pressure casting technology preparation, and the surface is comparatively smooth, and the precision is higher, and of course, gasket 255 also can make through other manufacturing process, the embodiment of the utility model provides a do not limit to this.

The embodiment of the utility model provides an in, first elastic component 252 can realize projection screen 2's one-level damping and second grade damping, and second elastic component 253 can realize projection screen 2's tertiary damping. The combined use of the first elastic member 252 and the second elastic member 253 may make the vibration reduction effect of the projection screen 2 more significant.

In some embodiments, the fixed frame 21 may be a frame-type structure, and the fixed frame 21 may be a rectangular, circular or other shaped structure with a hollow area. Of course, the fixing frame 21 may be other non-hollow frame structure as long as the connection between the optical screen 22 and the sound-emitting panel 23 can be realized. In addition, the fixing frame 21 may be configured to be connected to a supporting mechanism 25, the supporting mechanism 25 may be configured to be connected to a supporting body to realize fixed support of the whole projection screen 2, and the supporting body may be a fixing bracket or a wall body, as long as fixed support of the projection screen 2 can be realized.

In some embodiments, the edges of the optical screen 22 and the sound-emitting panel 23 are connected to the fixed frame 21 such that the central areas of the optical screen 22 and the sound-emitting panel 23 are located in the central area of the fixed frame 21 to ensure that the sound emitted from the sound-emitting panel 23 can be located at the exact center.

Of course, the optical screen 22 and the sound board 23 may also be connected to the fixing frame 21 in other ways, which is not limited by the embodiment of the present invention. For example, the central area of the fixing frame 21 may be provided with a support frame to attach the optical screen 22 to a first side of the support frame and the sound-emitting panel 23 to a second side of the support frame.

In some embodiments, the optical screen 22 may include an optical membrane, and in this case, the optical membrane and the one or more actuators 24 may be disposed on both sides of the sound-emitting panel 23, that is, the optical membrane may be attached to a first side of the sound-emitting panel 23, and the one or more actuators 24 may be fixed to a second side of the sound-emitting panel 23. When the projection device 1 emits the projection light to the optical film, the optical film can reflect the projection light, so that the projection of the picture is realized on the optical film.

In other embodiments, the optical screen 22 may include a carrier, an optical film and a fixing member 254, wherein the edge of the carrier may be connected to the fixing frame 21 through the fixing member 254, so that the central region of the carrier is located in the central region of the fixing frame 21, and then the optical film is attached to the side of the carrier away from the sound-emitting plate 23, so as to ensure that the optical film can be located in the central region of the carrier. When the projection device 1 emits the projection light to the optical film, the optical film can reflect the projection light, so that the projection of the picture is realized on the optical film.

In some embodiments, the optical film may be attached to the side of the carrier remote from the sound board 23 by a double-sided adhesive tape. Of course, the optical film may also be attached to one side of the supporting body away from the sound board 23 in other ways, which is not limited by the embodiment of the present invention.

In some embodiments, the supporting body may be a soft cloth or a hard plate, as long as it can support the optical film and is connected to the fixing frame 21.

In order to avoid that the one or more exciters 24 simultaneously excite the sound-generating plate 23 and the carrier to vibrate when the carrier is of soft cloth, the one or more exciters 24 may be fixed on the side of the sound-generating plate 23 remote from the carrier. When the support is a rigid plate, if there is a certain distance between the support and the exciter 24, the exciter 24 or exciters 24 cannot excite the rigid plate to vibrate, and the exciter 24 or exciters may be fixed on any side of the sound-emitting plate 23, that is, the exciter 24 or exciters may be fixed on the side of the sound-emitting plate 23 close to the support or on the side of the sound-emitting plate 23 far from the support.

In some embodiments, the sound-emitting panel 23 may include a first skin, a second skin, and a honeycomb core panel, the honeycomb core panel being bonded between the first skin and the second skin; one or more actuators 24 may be secured to the first skin on a side away from the honeycomb core, or may be secured to the second skin on a side away from the honeycomb core.

One side of the first skin, which is in contact with the honeycomb core plate, and one side of the second skin, which is in contact with the honeycomb core plate, can be provided with a layer of PU (polyurethane) glue, and the PU glue can adhere the first skin and the second skin to the honeycomb core plate. After bonding the first skin and the second skin to the honeycomb core, the honeycomb core may be indirectly connected to the one or more actuators 24 by bonding the first skin or the second skin to the one or more actuators 24.

It should be noted that the material of the first skin and the second skin may be glass fiber, carbon fiber, or glass-carbon mixed fiber, and of course, the first skin and the second skin may also be plastic, lightweight aluminum, or the like. The thicknesses of the first skin and the second skin can be within a thickness range of 0.1-0.5 mm, further, the thicknesses of the first skin and the second skin can be within a thickness range of 0.18-0.36 mm, and the thicknesses of the first skin and the second skin can be different as long as the thicknesses of the first skin and the second skin are within the thickness range.

The honeycomb core plate is a honeycomb core plate with a cross section formed by closely arranging a plurality of hollow hexagonal honeycomb grids, each hexagonal honeycomb grid in the honeycomb core plate comprises at least one pair of parallel honeycomb walls, and the pair of parallel honeycomb walls is vertical to the horizontal plane. Illustratively, the material of the honeycomb core board can be paper, aramid, metal or other composite materials.

It should be noted that when one or more exciters 24 excite the honeycomb core plate to vibrate, the sound emitted from the honeycomb core plate can be excited repeatedly among a plurality of cells to induce the whole honeycomb core plate to resonate, so that the effect of the whole panel of the whole sound-emitting plate 23 vibrating and emitting sound together can be achieved.

In some embodiments, the distance between a parallel pair of cell walls in the cell is in the range of 3 to 10mm, and the ratio of the distance between the parallel pair of cell walls to the distance between two opposing vertices in the cross-section of the cell is less than 0.58.

In some embodiments, the projection screen 2 may further include one or more foam adhesives in one-to-one correspondence with the one or more actuators 24, and the one or more actuators 24 are attached to the sound-emitting panel 23 by the corresponding one or more foam adhesives.

It should be noted that the exciter 24 may vibrate during operation, so as to excite the sound-emitting plate 23 to vibrate together, at this time, since the foam rubber may have a certain elasticity, an elastic buffer may be formed between each exciter 24 and the sound-emitting plate 23, so as to prevent the exciter 24 from falling off from the sound-emitting plate 23, and at the same time, it is ensured that the exciter 24 may excite the sound-emitting plate 23 to vibrate.

It should also be noted that one actuator 24 may include one fixed angle or may include multiple fixed angles. When an actuator 24 includes a fixed angle, a shape of a foam corresponding to an actuator 24 may be similar to the shape of the fixed angle. When one actuator 24 includes a plurality of fixed corners, a shape of a foam corresponding to one actuator 24 may be similar to a shape of an area surrounded by the plurality of fixed corners. Illustratively, the foam may have a ring structure. Of course, one foam rubber may be composed of a plurality of sub-foam rubbers, the plurality of sub-foam rubbers correspond to the plurality of fixed corners one to one, and the shape of each sub-foam rubber may be similar to the shape of the corresponding fixed corner.

The embodiment of the utility model provides an in, the projection light that optical screen can send projection equipment reflects to realize the projection of picture. In addition, the projection apparatus may drive each of the exciters to vibrate, thereby exciting the sound emitting panels to vibrate in common to emit sound through the sound emitting panels. Because the sound board and the optical screen are fixed on the fixed frame, the sound board and the optical screen can be ensured to be in the same area, so that the effect of sound emitted from the picture can be achieved, the condition that the picture and the sound are not uniform is avoided, and the projection effect of the projection system is improved. The hanger may support the fixed frame. The first elastic piece can avoid rigid contact between the hanging rack and the fixed frame, can absorb vibration of the fixed frame, and effectively avoids noise between the hanging rack and the vibrating fixed frame. The second elastic piece can avoid the rigid contact between the hanging rack and the fixing piece and between the hanging rack and the supporting body, and can assist the first elastic piece to further reduce vibration.

Fig. 2 illustrates a rear view structural schematic diagram of a projection screen according to an embodiment of the present invention, and fig. 3 illustrates a structural schematic diagram of a supporting mechanism according to an embodiment of the present invention. As shown in fig. 2 and 3, the projection screen includes: a fixed frame 21, an optical screen 22, a sound-emitting panel 23, one or more actuators 24, one or more support mechanisms 25, each support mechanism 25 comprising a hanger 251 and a first elastic member 252; the fixed frame 21 is used for fixedly connecting the sound-emitting plate 23 and the optical screen 22, the one or more exciters 24 are fixed on the sound-emitting plate 23, the support arm 2511 of the hanging rack 251 extends into the hanging slot 211 of the fixed frame 21, the first elastic element 252 is buckled on the support arm 2511 of the hanging rack 251 and can fill the gap between the support arm 2511 of the hanging rack 251 and the side wall of the hanging slot 211, and the fixed arm 2512 of the hanging rack 251 is used for connecting with the support body; one or more actuators 24 are used to electrically connect with the projection device 1, the one or more actuators 24 are capable of exciting the sound-emitting panel 23 to vibrate to emit sound, and the optical screen 22 is used to receive the projected light emitted by the projection device 1.

It should be noted that, the structures of the fixed frame, the optical screen, the sound-emitting plate, the one or more actuators, the cover plate, and the one or more supporting mechanisms according to the embodiments of the present invention may be the same as or similar to the structures of the fixed frame, the optical screen, the sound-emitting plate, the one or more actuators, the cover plate, and the one or more supporting mechanisms according to the above embodiments, and the embodiments of the present invention are not described herein again.

The embodiment of the utility model provides an in, the projection light that optical screen can send projection equipment reflects to realize the projection of picture. In addition, the projection apparatus may drive each of the exciters to vibrate, thereby exciting the sound emitting panels to vibrate in common to emit sound through the sound emitting panels. Because the sound board and the optical screen are fixed on the fixed frame, the sound board and the optical screen can be ensured to be in the same area, so that the effect of sound emitted from the picture can be achieved, the condition that the picture and the sound are not uniform is avoided, and the projection effect of the projection system is improved. The hanger may support the fixed frame. The first elastic piece can avoid rigid contact between the hanging rack and the fixed frame, can absorb vibration of the fixed frame, and effectively avoids noise between the hanging rack and the vibrating fixed frame.

The above description is only illustrative of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A projection system, characterized in that the projection system comprises: projection equipment and projection screen, the projection screen includes: the device comprises a fixed frame, an optical screen, a sound-emitting board, one or more exciters and one or more supporting mechanisms, wherein each supporting mechanism comprises a hanging frame and a first elastic piece;

2. The projection system of claim 1, wherein each support mechanism further comprises a second elastic member and a fixed member;

3. The projection system of claim 2, wherein each support mechanism further comprises a spacer, the spacer is sleeved on the fixed member and can be pressed on the end surface of the second elastic member.

4. The projection system of claim 3, wherein the spacer has a size greater than a size of the through hole.

5. The projection system of claim 1, wherein the first elastic member is of an S-shaped structure, and the first elastic member is further fastened to a sidewall of the hanging groove.

6. The projection system of claim 5, wherein a vertical distance between a first side wall of the first elastic member and a connecting wall is equal to a thickness of a support arm of the hanger, and a vertical distance between a second side wall of the first elastic member and the connecting wall is greater than or equal to a thickness of a side wall of the hanging slot.

7. The projection system of claim 5, wherein the connection portion between the second sidewall and the connection wall of the first elastic member is fixed on the support platform of the hanger by a double-sided adhesive tape.

8. The projection system of claim 1, wherein the first flexible member has a U-shaped configuration, and a vertical distance between a first side wall and a second side wall of the first flexible member is equal to a thickness of the support arm of the hanger.

9. The projection system of claim 1, wherein the stiffness of the first resilient member is within a stiffness threshold range.

10. A projection screen, comprising: the device comprises a fixed frame, an optical screen, a sound-emitting board, one or more exciters and one or more supporting mechanisms, wherein each supporting mechanism comprises a hanging frame and a first elastic piece;