CN116626972A - Optical-mechanical device and laser projection equipment - Google Patents

Abstract

The application discloses an optical machine device and laser projection equipment, and belongs to the technical field of projection. The opto-mechanical device comprises: an optical machine shell, a light valve device and a sealing structure. The light valve device is positioned in the mounting groove of the optical machine shell, and the light receiving surface of the light valve device faces to the first light transmitting hole on the bottom of the mounting groove. The sealing structure can be located in the gap between the light valve device and the inner wall of the mounting groove, and is used for sealing the gap, so that impurities in the external environment are prevented from entering the inside of the light machine shell through the gap between the light valve device and the inner wall of the mounting groove and the first light hole, and the sealing effect of the light machine device can be improved.

Description

Optical-mechanical device and laser projection equipment

Technical Field

The present application relates to the field of projection technologies, and in particular, to an optical mechanical device and a laser projection device.

Background

Laser projection devices typically include a laser light source and an optical-mechanical device including a light valve and a projection lens. The light valve is used for modulating the laser beam into an image beam, and the projection lens is used for projecting the image beam onto the projection screen.

The utility model provides a ray apparatus device, includes light valve device, ray apparatus casing, sealed bubble cotton and closing plate, and light valve device is arranged in the installation through-hole of ray apparatus casing, is provided with sealed bubble cotton around the installation through-hole of ray apparatus casing, and the closing plate is arranged in sealed bubble cotton to deviate from one side of ray apparatus casing to press sealed bubble cotton on the ray apparatus casing. So as to prevent dust, scraps and other impurities from entering the inside of the optical machine shell through the sealing foam.

The sealing effect of the optical machine device is poor.

Disclosure of Invention

The embodiment of the application provides an optical machine device and laser projection equipment. The technical scheme is as follows:

according to an aspect of the present application, there is provided an optical machine apparatus comprising:

the light valve device comprises a light machine shell, a light valve device and a sealing structure;

the light machine shell is provided with a mounting groove, and the bottom of the mounting groove is provided with a first light hole;

the light valve device is positioned in the mounting groove and provided with a light receiving surface, and the light receiving surface faces the first light transmitting hole;

the sealing structure is positioned between the light valve device and the inner wall of the mounting groove, and is respectively abutted with the light valve device and the inner wall of the mounting groove, and the orthographic projection of the sealing structure on the bottom of the mounting groove surrounds the first light holes.

Optionally, the light valve device has two opposite first edges, and the sealing structure includes two opposite first sealing strips;

the first sealing strip is located between the first edge and the side wall of the mounting groove, and the first sealing strip is clamped between the first edge and the side wall of the mounting groove.

Optionally, the sealing structure further comprises two opposite second sealing strips, two ends of each second sealing strip are respectively connected with the two first sealing strips, and an included angle is formed between the length direction of each second sealing strip and the length direction of each first sealing strip;

the two second sealing strips are positioned between the light valve device and the bottom of the mounting groove and respectively abutted with the light valve device and the bottom of the mounting groove.

Optionally, the light valve device further has two positioning slits, and an opening of the positioning slits faces to a side wall of the mounting groove;

the two positioning openings are positioned at two sides of the light receiving surface in the target direction;

the two second sealing strips are respectively positioned at two sides of the light receiving surface in the target direction, and the two second sealing strips are positioned between the two positioning openings;

or the two positioning openings are positioned at two sides of the light receiving surface in the target direction, and the two second sealing strips are respectively positioned at two sides of the light receiving surface in the direction with an included angle with the target direction.

Optionally, the bottom of the mounting groove is provided with two sealing strips and grooves corresponding to the second sealing strips, and the length direction of the sealing strips and grooves is parallel to the length direction of the corresponding second sealing strips;

at least part of the second sealing strip is positioned at one side of the first sealing strip, which is close to the bottom of the mounting groove, and at least part of the second sealing strip is embedded in the corresponding sealing strip groove.

Optionally, one end of at least one first sealing strip of the two first sealing strips is provided with a first positioning piece;

the side wall of the mounting groove is provided with a first positioning part corresponding to the first positioning piece, and the shape of the first positioning piece is matched with the shape of the first positioning part.

Optionally, the light valve device further has two opposite second sides, and two ends of the second sides are respectively connected with one ends of the two first sides;

the sealing structure further comprises a second positioning piece, and the second positioning piece is connected with one end of at least one first sealing strip of the two first sealing strips;

the second positioning piece is positioned between the side wall and the connecting position of the first edge and the second edge.

Optionally, the two first sealing strips, the two second sealing strips and the second positioning piece are of an integrated structure.

Optionally, the light valve assembly further includes an adapter plate and a circuit board, where the adapter plate is located at a side of the light valve device facing away from the bottom plate of the mounting groove and is electrically connected with the light valve device;

the circuit board is positioned on one side of the adapter plate, which is away from the light valve device, and is electrically connected with the adapter plate.

According to another aspect of the present application, there is provided a laser projection apparatus including: the laser comprises a laser, a light machine device and a projection lens, wherein the light machine device is positioned on the light emitting side of the laser, the projection lens is positioned on the light emitting side of the light machine device, and the light machine device is the light machine device.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

an opto-mechanical apparatus is provided that includes an opto-mechanical housing, a light valve device, and a sealing structure. The light valve device is positioned in the mounting groove of the optical machine shell, and the light receiving surface of the light valve device faces to the first light transmitting hole on the bottom of the mounting groove. The sealing structure can be located in a gap between the light valve device and the inner wall of the mounting groove, and is used for sealing the gap, so that impurities in the external environment are prevented from entering the inside of the optical machine shell through the gap between the light valve device and the inner wall of the mounting groove and the first light holes. The problem that the sealing effect of the optical machine device in the related art is poor can be solved, and the sealing effect of the optical machine device is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an optical mechanical device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an exploded view of the opto-mechanical device shown in FIG. 1;

FIG. 3 is a schematic view of a light valve device according to the present application in a mounting recess;

FIG. 4 is a schematic view of a seal structure in a mounting groove according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a light valve device and sealing structure according to an embodiment of the present application;

FIG. 6 is a schematic structural view of a sealing structure according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a light valve device according to an embodiment of the present application;

fig. 8 is a schematic structural view of a light valve device and a sealing structure in a mounting groove according to an embodiment of the present application;

FIG. 9 is a schematic view of another seal structure provided by the present application;

FIG. 10 is a schematic diagram of another embodiment of a light valve device according to the present application;

FIG. 11 is a schematic view of another seal structure provided by the present application;

FIG. 12 is a schematic diagram of another embodiment of a light valve device and sealing structure;

FIG. 13 is a schematic view of another embodiment of the present application for a light valve device and sealing structure in a mounting recess;

FIG. 14 is a schematic diagram of another embodiment of a light valve device and sealing structure according to the present application;

fig. 15 is a schematic view of a structure in another mounting groove provided in an embodiment of the present application;

FIG. 16 is a schematic diagram of another optical mechanical device according to the present application;

FIG. 17 is a schematic diagram of another optical mechanical device according to an embodiment of the present application;

FIG. 18 is a schematic cross-sectional view of the optical-mechanical device of FIG. 17 taken along the line A1-A2.

Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

The laser projection display technology is a novel projection display technology in the current market, and has the characteristics of clear imaging, bright color and higher brightness compared with an LED projection product, and the remarkable characteristics gradually enable the laser projection display technology to become the development direction of the other main stream in the market.

The digital micromirror device (English: digital micromirror device, abbreviated: DMD) includes a plurality of mirrors that are rotatable between two positions, which can be an on position and an off position, and the light beam emitted from the digital micromirror device can be controlled by the rotating mirrors. The size of the digital micro-mirror device is related to the display picture effect of the laser projection equipment, the larger the size of the digital micro-mirror device is, the more the pixel size is, the finer the display picture is, and the more the reflected light is, the higher the brightness is.

The utility model provides a ray apparatus device, includes light valve device, ray apparatus casing, sealed bubble cotton and closing plate, and light valve device is arranged in the installation through-hole of ray apparatus casing, is provided with sealed bubble cotton around the installation through-hole of ray apparatus casing, and the closing plate is arranged in sealed bubble cotton to deviate from one side of ray apparatus casing. So as to prevent dust, scraps and other impurities from entering the inside of the optical machine shell through the sealing foam. However, the sealing effect of the sealing foam in the optical machine device is poor, which results in poor sealing effect of the optical machine device.

The embodiment of the application provides an optical machine device and laser projection equipment, which can solve the problems in the related technology.

Fig. 1 is a schematic structural diagram of an optical engine device 100 according to an embodiment of the present application, fig. 2 is an exploded structural diagram of the optical engine device 100 shown in fig. 1, fig. 3 is a schematic structural diagram of a light valve device 12 in a mounting groove c1 according to an embodiment of the present application, and fig. 4 is a schematic structural diagram of a sealing structure 13 in the mounting groove c1 according to an embodiment of the present application, please refer to fig. 1, fig. 2, fig. 3 and fig. 4. The opto-mechanical device 100 may comprise: an optics housing 11, a light valve device 12 and a sealing structure 13.

The optical machine housing 11 may have a mounting groove c1 thereon, and a groove bottom c12 of the mounting groove c1 has a first light transmission hole k1. The light valve device 12 may be positioned in the mounting groove c1, and the light valve device 12 may have a light receiving surface (not shown in fig. 1 to 4) that may face the first light transmitting hole k1. The optical engine device 100 may further include a light source assembly disposed in the optical engine housing 11, where the light source assembly is configured to emit a laser beam, and the laser beam can be irradiated onto a light receiving surface of the light valve assembly through the first light hole k1, and the light valve assembly is configured to modulate the laser beam emitted by the light source assembly.

The sealing structure 13 may be located between the light valve device 12 and the inner wall of the mounting groove c1, and the sealing structure 13 is respectively abutted with the light valve device 12 and the inner wall of the mounting groove c1, and an orthographic projection of the sealing structure 13 on the groove bottom c12 of the mounting groove c1 surrounds the first light transmitting hole k1. Referring to fig. 3 and 4, when only the light valve device 12 is placed in the mounting groove c1, there is a gap x1 between the light valve device 12 and the inner wall of the mounting groove c 1; the sealing structure 13 may be a ring-shaped sealing structure 13, and when only the sealing structure 13 is placed in the installation groove c1, the sealing structure 13 may be in contact with the inner wall of the installation groove c1, and further, the sealing structure 13 may be fitted with the inner wall of the installation groove c 1. In this way, the sealing structure 13 may be located in the gap x1 between the light valve device 12 and the inner wall of the installation recess c1, for sealing the gap x1, and preventing impurities in the external environment from entering the inside of the light engine housing 11 through the gap x1 between the light valve device 12 and the inner wall of the installation recess c1 and the first light transmitting hole k1.

In summary, the embodiment of the application provides an optical engine device including an optical engine housing, a light valve device and a sealing structure. The light valve device is positioned in the mounting groove of the optical machine shell, and the light receiving surface of the light valve device faces to the first light transmitting hole on the bottom of the mounting groove. The sealing structure can be located in a gap between the light valve device and the inner wall of the mounting groove, and is used for sealing the gap, so that impurities in the external environment are prevented from entering the inside of the optical machine shell through the gap between the light valve device and the inner wall of the mounting groove and the first light holes. The problem that the sealing effect of the optical machine device in the related art is poor can be solved, and the sealing effect of the optical machine device is improved.

It should be noted that, in fig. 1, fig. 2, fig. 3, and fig. 4, in order to more clearly show the structure of the optical engine housing 11, the side plate provided with the mounting through hole is shown, and the top plate is not shown, in practical application, the optical engine housing 11 may include opposite top and bottom plates and the side plate for connecting the top and bottom plates, so as to enclose the cavity of the optical engine housing 11. The side plate may include a plurality of sub-side plates, and the plurality of sub-side plates may enclose an annular region.

Alternatively, at least part of the sealing structure 13 may be clamped between the light valve device 12 and the side wall c11 of the mounting groove c 1. The light valve device 12 is capable of pressing at least part of the sealing structure 13 against the side wall c11 of the mounting groove c 1. That is, the light valve device 12 may apply pressure toward the side wall c11 of the mounting groove c1 to press at least part of the sealing structure 13 by the light valve device 12 and the side wall c11 of the mounting groove c1, so that the light valve device 12 and the side wall c11 of the mounting groove c1 can clamp the sealing structure 13, and thus, the side wall c11 of the mounting groove c1 can clamp the light valve device 12 located in the mounting groove c1 by the sealing structure 13, so that the sealing structure 13 can fix the light valve device 12 in the mounting groove c1 while forming a seal between the light valve device 12 and the mounting groove c 1.

In the related art, the sealing foam is respectively adhered to the surface outside the installation through hole of the optical machine shell and the sealing plate, but the maintainability of the optical machine device in the prior art is poor. For example, when the light valve device is damaged, the sealing plate and the sealing foam need to be removed from the optical engine housing, but the sealing foam is adhered to the surface outside the installation through hole of the optical engine housing and the sealing plate respectively, so that the disassembly process of the light valve device is complicated. Or, the sealing foam is longer in service time, the sealing foam needs to be replaced, and in the process of replacing the sealing foam, glue stains between the sealing foam and the optical engine shell need to be removed, so that the difficulty of replacing the sealing foam is increased.

In the embodiment of the application, the sealing structure 13 and the mounting groove c1 are not required to be provided with an adhesive layer, and at least part of the sealing structure 13 can be clamped between the light valve device 12 and the side wall c11 of the mounting groove c1 to fix the light valve device 12 and the sealing structure 13 together in the mounting groove c1, so that the difficulty in mounting or dismounting the sealing structure 13 can be reduced, and the light valve device 12 or the sealing structure 13 can be conveniently dismounted for replacement or maintenance when the light valve device 12 or the sealing structure 13 is damaged. For example, when the sealing structure 13 is damaged, the light valve device 12 and the sealing structure 13 may be removed from the installation groove c1 to replace the sealing structure 13, and after the replacement is completed, the sealing structure 13 and the light valve device 12 are placed together in the installation groove c1, so that the maintenance process of the sealing structure 13 may be completed, and the maintenance or replacement difficulty of the sealing structure 13 may be made smaller. The problem that the difficulty of installing or detaching the sealing foam in the optical machine device in the related art is high can be solved, and the difficulty of installing or detaching the sealing structure is reduced.

Fig. 5 is a schematic structural view of a light valve device 12 and a sealing structure 13 provided by an embodiment of the present application, fig. 6 is a schematic structural view of a sealing structure 13 provided by an embodiment of the present application, fig. 7 is a schematic structural view of a light valve device 12 provided by an embodiment of the present application, fig. 8 is a schematic structural view of a light valve device 12 and a sealing structure 13 provided by an embodiment of the present application in a mounting groove c1, please refer to fig. 5, fig. 6, fig. 7 and fig. 8, in an alternative embodiment, the light valve device 12 may have two opposite first edges b1, and the sealing structure 13 may include two opposite first sealing strips 131. The length direction of the two first sides b1 may be parallel, and the length direction may be a first direction f1, the two first sides b1 may be arranged along a second direction f2, and the first direction f1 may be perpendicular to the second direction f 2. The first side b1 of the light valve device 12 may refer to a side of the light valve device 12 extending in the first direction f1.

The first sealing bar 131 may be located between the first side b1 of the light valve device 12 and the sidewall c11 of the mounting groove c1, and the first sealing bar 131 may be clamped between the first side b1 and the sidewall c11 of the mounting groove c 1. That is, the first sealing strip 131 may be located outside the first side b1 of the light valve device 12, and a face of the first sealing strip 131 facing the light valve device 12 may be bonded to the first side b1 of the light valve device 12, and a face of the first sealing strip 131 facing away from the light valve device 12 may be bonded to the sidewall c11 of the mounting groove c1, so that the first sealing strip 131 may be used to seal a gap between the first side b1 of the light valve device 12 and the sidewall c11 of the mounting groove c 1.

At least one first sealing strip 131 of the two first sealing strips 131 is in interference fit with the light valve device 12 and the side wall c11, so that the connection stability of the first sealing strip 131 and the light valve device 12 and the mounting groove c1 can be improved. That is, by providing the width of the first sealing tape 131 in the second direction f2 slightly larger than the width of the space between the light valve device 12 and the mounting groove c1, the first sealing tape 131 is pressed in the space between the light valve device 12 and the mounting groove c 1. In this way, by the interference fit of the first sealing strip 131 with the light valve device 12 and the side wall c11, the sealability between the light valve device 12 and the mounting groove c1 can be improved. Moreover, the first sealing strip 131 may be an elastic sealing element, and the light valve device 12 and the mounting groove c1 may be connected by interference fit between the first sealing strip 131 and the light valve device 12 and the side wall c11, so that the connection structure between the light valve device 12 and the mounting groove c1 is simpler.

Fig. 9 is a schematic structural diagram of another sealing structure 13 according to an embodiment of the present application, referring to fig. 9, in an alternative embodiment, optionally, the sealing structure 13 further includes two opposite second sealing strips 132, two ends of the second sealing strips 132 are respectively connected to the two first sealing strips 131, and an included angle is formed between a length direction of the second sealing strips 132 and a length direction of the first sealing strips 131. The length directions of the two second sealing bars 132 may be parallel, and the length direction of the second sealing bar 132 may be perpendicular to the length direction of the first sealing bar 131. The second sealing strip 132 may be used to connect the two first sealing strips 131.

Fig. 10 is a schematic structural view of another light valve device 12 provided by the embodiment of the present application, fig. 11 is a schematic structural view of another sealing structure 13 provided by the embodiment of the present application, fig. 12 is a schematic structural view of another light valve device 12 and a sealing structure 13 provided by the embodiment of the present application, fig. 13 is a schematic structural view of another light valve device 12 and a sealing structure 13 provided by the embodiment of the present application in an installation groove c1, please refer to fig. 11, fig. 12 and fig. 13, two second sealing strips 132 are located between the light valve device 12 and a groove bottom c12 of the installation groove c1 and respectively abutted with the light valve device 12 and the groove bottom c12 of the installation groove c 1. The light valve device 12 has opposite top and bottom surfaces, the light receiving surface s1 is located on the top surface of the light valve device 12, and the top surface of the light valve device 12 may be located on a side of the bottom surface toward the groove bottom c12 of the mounting groove c 1. The second sealing strip 132 may be located at a side of the top surface of the light valve device 12 facing the groove bottom c12 of the mounting groove c1, and the light valve device 12 may press-contact the second sealing strip 132 against the groove bottom c12 of the mounting groove c 1.

The side of the second sealing strip 132 facing the light valve device 12 may be bonded to the top surface of the light valve device 12, and the side of the second sealing strip 132 facing away from the light valve device 12 may be bonded to the groove bottom c12 of the installation groove c1, so that the first sealing strip 131 may be used to seal a gap between the top surface of the light valve device 12 and the groove bottom c12 of the installation groove c 1. Since the two first sealing strips 131 extending in the first direction f1 can be used to seal the gap between the two first sides b1 of the light valve device 12 and the side walls c11 of the installation groove c1, and the two second sealing strips 132 extending in the second direction f2 can seal the gap between the top surface of the light valve device 12 and the bottom c12 of the installation groove c1, by providing the two first sealing strips 131 and the two second sealing strips 132, the gap between the light valve device 12 and the inner walls of the installation groove c1 can be sealed, and impurities in the external environment are prevented from entering the optical engine housing 11 through the gap between the light valve device 12 and the inner walls of the installation groove c 1.

In addition, the first sealing strip 131 and the second sealing strip 132 are connected, and the second sealing strip 132 is located on the side of the light valve device 12 near the groove bottom c12 of the installation groove c1, and when both the light valve device 12 and the sealing structure 13 are installed in the installation groove c1, the second sealing strip 132 can fix the first sealing strip 131 in the direction perpendicular to the groove bottom c12 of the installation groove c1, avoiding the separation of the first sealing strip 131 and the light valve device 12.

Fig. 14 is a schematic structural diagram of another light valve device 12 and a sealing structure 13 provided in the embodiment of the present application, please refer to fig. 8 and 14, in an alternative embodiment, the light valve device 12 further has two positioning slits 121, the openings of the positioning slits 121 face the side wall c11 of the mounting groove c1, the two positioning slits 121 are located at two sides of the light receiving surface s1 in the target direction, the two second sealing strips 132 are located at two sides of the light receiving surface s1 in the target direction, and the two second sealing strips 132 are located between the two positioning slits 121. That is, the positioning notch 121, the second sealing strip 132, and the light receiving surface s1 may be arranged along the target direction. The target direction may be the first direction f1 in fig. 8. In this way, the influence of the two second sealing strips 132 on the light receiving surface s1 of the optical valve device 12 can be avoided, and the two second sealing strips 132 are located between the two positioning notches 121, so that the influence of the two positioning notches 121 on the tightness of the second sealing strips 132 can be avoided.

Illustratively, the light valve device 12 may further have two opposite second sides b2, and both ends of the second sides b2 may be connected to one ends of the two first sides b1, respectively, and the light valve device 12 may have a positioning notch 121 located at the second side b2, and the positioning notch 121 may be opened toward the sidewall c11 of the mounting groove c 1. The inner wall of the installation groove c1 may have a positioning protrusion 111 corresponding to the positioning gap 121, the shape of the positioning gap 121 is matched with the shape of the positioning protrusion 111, and at least part of the positioning protrusion 111 may be located in the positioning gap. The light valve device 12 shown in fig. 14 and 15 is the bottom surface of the light valve device 12. The shape and size of the positioning notch 121 and the setting position correspond to the outer side face of the positioning protrusion 111, and the light valve device 12 is limited by matching the positioning notch 121 with the positioning protrusion 111.

In one exemplary embodiment, the two first sealing strips may be respectively located between the two second sides of the light valve device and the sidewalls of the mounting groove, and the first sealing strips may respectively abut the sidewalls of the light valve device and the mounting groove. The two second sealing strips may be located between the light valve device and the bottom of the mounting groove, and the second sealing strips may be respectively abutted with the light valve device and the bottom of the mounting groove. In this case, the length direction of the second sealing strip may be parallel to the first direction, that is, the length direction of the second sealing strip may be parallel to the extending direction of the first side of the sealing device.

The two positioning notches can be positioned at two sides of the light receiving surface in the target direction, and the two second sealing strips are respectively positioned at two sides of the light receiving surface in the direction with an included angle with the target direction. The included angle may be a right angle, and the direction having an included angle with the target direction may be a direction perpendicular to the target direction. And, two second sealing strips can be located the both sides of location opening in the direction of predetermineeing, and this predetermineeing the direction can be with the direction that target direction exists the contained angle. So, can avoid two second sealing strips to lead to the fact the influence to the light receiving surface of light valve device to, two second sealing strips are located the both sides of two location openings respectively, can avoid two location openings to lead to the fact the influence to the leakproofness of second sealing strip.

Fig. 15 is a schematic structural diagram of another installation groove c1 provided in an embodiment of the present application, referring to fig. 15, in an alternative embodiment, the groove bottom of the installation groove c1 may have two sealing grooves 112 corresponding to the second sealing strips 132, and the length direction of the sealing grooves 112 may be parallel to the length direction of the corresponding second sealing strips 132. At least part of the second sealing strip 132 may be located at a side of the first sealing strip 131 near the groove bottom of the installation groove c1, and at least part of the second sealing strip 132 may be embedded in the corresponding sealing strip groove 112. In this way, the following two effects can be achieved, firstly, at least part of the second sealing strip 132 is embedded in the corresponding sealing strip groove 112, the whole sealing structure 13 can be better fixed through the second sealing strip 132, and the displacement of the sealing structure 13 in the use process is avoided. Second, at least part of the second sealing strip 132 can be attached to the inner wall of the corresponding sealing strip groove 112, so that the contact area between the second sealing strip 132 and the inner wall of the mounting groove c1 can be increased, and the sealing effect of the second sealing strip 132 can be improved.

Referring to fig. 8, alternatively, one end of at least one first sealing bar 131 of the two first sealing bars 131 may have a first positioning member 1311. The sidewall c11 of the mounting groove c1 may have a first positioning portion 113 corresponding to the first positioning piece 1311 thereon, the shape of the first positioning piece 1311 matches the shape of the first positioning portion 113, and the first positioning piece 1311 and the first positioning portion 113 are attached. The first positioning member 1311 may be a first positioning inclined surface, the first positioning portion 113 may be a second positioning inclined surface, and the first positioning member 1311 and the second positioning portion may play a positioning role when the sealing structure 13 is mounted. The sealing structure 13 in the embodiment of the application has a sealing effect and a positioning effect. Illustratively, the sealing structure 13 may enable positioning between the sealing structure 13 and the mounting groove c1 of the optical housing 11 by the first positioning member 1311, and positioning between the light valve device 12 and the sealing structure 13 may also be ensured since at least part of the sealing structure 13 is located between the light valve device 12 and the side wall c11 of the mounting groove c1 of the optical housing 11. Compared with the related art, the sealing structure and the positioning structure in the optical machine device are two different structures, and the sealing structure in the embodiment of the application can reduce the number of parts in the optical machine device and simplify the structure of the optical machine device.

Alternatively, the light valve device 12 may further have two opposite second sides b2, and two ends of the second sides b2 are connected to one ends of the two first sides b1, respectively. The sealing structure 13 may further include a second positioning member 133, and the second positioning member 133 is connected to one end of at least one first sealing strip 131 of the two first sealing strips 131. The second positioning piece 133 is located between the connecting position of the first edge b1 and the second edge b2 and the side wall c11, and the second positioning piece 133 is in interference fit with the connecting position and the side wall c11 respectively. It is understood that the first positioning member 1311 and the second positioning member 133 may be located at both ends of the same first sealing strip 131, or the first positioning member 1311 and the second positioning member 133 may be located at the ends of the two first sealing strips 131, respectively, that is, the first positioning member 1311 and the second positioning member 133 are not located at the same position.

The second positioning member 133 may be L-shaped, and the second positioning member 133 may include a first sub-positioning portion 1331 and a second sub-positioning portion 1332, one end of the first sub-positioning portion 1331 being connected with the second end of at least one first sealing strip 131 of the two first sealing strips 131, and the other end of the first sub-positioning portion 1331 being connected with one end of the second sub-positioning portion 1332. The extending direction of the first sub-positioning portion 1331 is a direction parallel to the longitudinal direction of the first weather strip 131, and the extending direction of the second sub-positioning portion 1332 is a direction perpendicular to the longitudinal direction of the first weather strip 131. The first sub-positioning portion 1331 is located between the first side and the side wall c11, the first sub-positioning portion 1331 is in interference fit with the first side b1 and the side wall c11, the second sub-positioning portion 1332 is located between the second side and the side wall c11, and the second sub-positioning portion 1332 is in interference fit with the second side b2 and the side wall c11. The second positioning member 133 may press the light valve device 12 against the sides of the two positioning projections 111 to fix the light valve device 12 in the mounting groove c 1.

Optionally, the two first sealing strips 131, the two second sealing strips 132 and the second positioning member 133 are integrally formed. The strength of the sealing structure 13 can be improved and the mounting step of the sealing structure 13 can be simplified.

Fig. 16 is a schematic structural view of another optical device according to the embodiment of the present application, fig. 17 is a schematic structural view of another optical device according to the embodiment of the present application, fig. 18 is a schematic structural view of a cross section of the optical device shown in fig. 17 along A1-A2, and referring to fig. 16 and 17 and 18, optionally, the light valve assembly may further include an adapter plate 14 and a circuit board 15, where the adapter plate 14 is located on a side of the light valve device 12 facing away from the bottom plate of the mounting groove c1 and is electrically connected to the light valve device 12. The circuit board 15 is located on a side of the adapter plate 14 facing away from the light valve device 12, and the circuit board 15 is electrically connected to the adapter plate 14. The adapter plate 14 can be pressed against the side of the light valve device 12 facing away from the groove bottom of the mounting groove c1, and pins are arranged on the adapter plate 14, so that the light valve device 12 and the circuit board 15 can be electrically connected and command can be transmitted through the pins.

In the process of installing the light valve device 12, the adapter plate 14 and the circuit board 15, the sealing structure 13 may be first assembled into the installation groove c1 of the optical machine housing 11, then the light valve device 12 is pressed between two first sealing strips 131 of the sealing structure 13, and two second sealing strips 132 of the sealing structure 13 are located on one side of the light valve device 12 near the groove bottom of the installation groove c 1. The adapter plate 14 and the circuit board 15 are sequentially installed, and the adapter plate 14 and the circuit board 15 are fixed on the optical machine shell 11 through screws.

In the related art, a sealing groove for placing sealing foam is required to be arranged on the optical engine housing 11, so that the workload of preparing the optical engine device 100 is increased, the layout of electrical components on the circuit board 15 is also affected by the sealing groove, the space between the circuit board 15 and the light valve device 12 is reduced, and the processing difficulty of the circuit board 15 is increased. In the embodiment of the application, a sealing groove for placing sealing foam is not required to be designed on the outer side of the optical machine shell 11, and the space between the light valve device 12 and the circuit board 15 is larger, so that the layout area for laying out the electrical components on the circuit board 15 is larger, and the manufacturing difficulty of the circuit board 15 can be reduced.

In summary, the embodiment of the application provides an optical engine device including an optical engine housing, a light valve device and a sealing structure. The light valve device is positioned in the mounting groove of the optical machine shell, and the light receiving surface of the light valve device faces to the first light transmitting hole on the bottom of the mounting groove. The sealing structure can be located in a gap between the light valve device and the inner wall of the mounting groove, and is used for sealing the gap, so that impurities in the external environment are prevented from entering the inside of the optical machine shell through the gap between the light valve device and the inner wall of the mounting groove and the first light holes. The problem that the sealing effect of the optical machine device in the related art is poor can be solved, and the sealing effect of the optical machine device is improved.

The embodiment of the application also provides a laser projection device, which can comprise: the device comprises a laser, a light machine device and a projection lens, wherein the light machine device is positioned on the light emitting side of the laser, the projection lens is positioned on the light emitting side of the light machine device, and the light machine device is any one of the light machine devices.

In the present disclosure, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.

The foregoing description of the preferred embodiments of the present application is not intended to limit the application, but rather, the application is to be construed as limited to the appended claims.

Claims (10)

1. An opto-mechanical device, characterized in that it comprises: the light valve device comprises a light machine shell, a light valve device and a sealing structure;

the light machine shell is provided with a mounting groove, and the bottom of the mounting groove is provided with a first light hole;

the light valve device is positioned in the mounting groove and provided with a light receiving surface, and the light receiving surface faces the first light transmitting hole;

the sealing structure is positioned between the light valve device and the inner wall of the mounting groove, and is respectively abutted with the light valve device and the inner wall of the mounting groove, and the orthographic projection of the sealing structure on the bottom of the mounting groove surrounds the first light holes.

2. The optomechanical device of claim 1 wherein the light valve device has two opposing first edges and the sealing structure comprises two opposing first sealing bars;

the first sealing strip is located between the first edge and the side wall of the mounting groove, and the first sealing strip is clamped between the first edge and the side wall of the mounting groove.

3. The optical mechanical device according to claim 2, wherein the sealing structure further comprises two opposite second sealing strips, two ends of the second sealing strips are respectively connected with the two first sealing strips, and an included angle is formed between the length direction of the second sealing strips and the length direction of the first sealing strips;

the two second sealing strips are positioned between the light valve device and the bottom of the mounting groove and respectively abutted with the light valve device and the bottom of the mounting groove.

4. A light engine as recited in claim 3, wherein said light valve device further has two positioning slits, said positioning slits opening toward a side wall of said mounting recess;

the two positioning openings are positioned at two sides of the light receiving surface in the target direction, the two second sealing strips are respectively positioned at two sides of the light receiving surface in the target direction, and the two second sealing strips are positioned between the two positioning openings;

or the two positioning openings are positioned at two sides of the light receiving surface in the target direction, and the two second sealing strips are respectively positioned at two sides of the light receiving surface in the direction with an included angle with the target direction.

5. A light machine as claimed in claim 3, characterized in that the groove bottom of the mounting groove is provided with two sealing strips and grooves corresponding to the second sealing strips, and the length direction of the sealing strips and grooves is parallel to the length direction of the corresponding second sealing strips;

at least part of the second sealing strip is positioned at one side of the first sealing strip, which is close to the bottom of the mounting groove, and at least part of the second sealing strip is embedded in the corresponding sealing strip groove.

6. The optomechanical device of claim 2, wherein one end of at least one of the two first sealing strips has a first positioning member;

the side wall of the mounting groove is provided with a first positioning part corresponding to the first positioning piece, and the shape of the first positioning piece is matched with the shape of the first positioning part.

7. A light engine as recited in claim 3, wherein said light valve device further has two opposite second sides, two ends of said second sides being connected to one ends of said two first sides, respectively;

the sealing structure further comprises a second positioning piece, and the second positioning piece is connected with one end of at least one first sealing strip of the two first sealing strips;

the second positioning piece is positioned between the side wall and the connecting position of the first edge and the second edge.

8. The optomechanical device of claim 7 wherein the two first sealing bars, the two second sealing bars and the second positioning member are of unitary construction.

9. The optomechanical device of claim 1, wherein the light valve assembly further comprises an adapter plate and a circuit board, the adapter plate being located on a side of the light valve device facing away from the floor of the mounting recess and being electrically connected to the light valve device;

the circuit board is positioned on one side of the adapter plate, which is away from the light valve device, and is electrically connected with the adapter plate.

10. A laser projection device, comprising: the laser, optical mechanical device and projection lens, optical mechanical device is located the light-emitting side of laser, the projection lens is located the light-emitting side of optical mechanical device, optical mechanical device is the optical mechanical device of any one of preceding claims 1 to 9.