CN115185147A

CN115185147A - Projector with a light source

Info

Publication number: CN115185147A
Application number: CN202210895955.2A
Authority: CN
Inventors: 欧阳飞
Original assignee: Formovie Chongqing Innovative Technology Co Ltd
Current assignee: Formovie Chongqing Innovative Technology Co Ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-10-14
Anticipated expiration: 2042-07-27
Also published as: CN115185147B

Abstract

The invention relates to a projector, which comprises a shell, an optical machine module and a locking piece. The shell is provided with an accommodating cavity, and the optical-mechanical module is arranged in the accommodating cavity. The two opposite sides of the inner wall of the top of the accommodating cavity are respectively provided with a first limiting part, and the two opposite sides of the inner wall of the bottom of the accommodating cavity are respectively provided with a second limiting part. The optical machine module comprises an optical machine main body and a support frame arranged at the bottom of the optical machine main body, wherein first matching parts are respectively arranged on two opposite sides of the top of the optical machine main body, and the first matching parts and the first limiting parts are in one-to-one correspondence and are in limiting matching. The opposite both sides of support frame are equipped with second cooperation portion respectively, and second cooperation portion and the spacing one-to-one of second are spacing to be cooperated, and retaining member locking connection second spacing portion and second cooperation portion. So, make the firm reliable of assembly of shell and ray apparatus module.

Description

Projector with a light source

Technical Field

The invention relates to the technical field of projection equipment, in particular to a projector.

Background

A projector is a device that can project videos, images, characters, and the like onto a screen for display, and is widely used in places such as homes, offices, schools, and movie theaters.

The projector has a complex internal structure and mainly comprises a shell and an optical-mechanical module, wherein the optical-mechanical module is arranged in the shell. However, there is a weak assembly phenomenon in the process of assembling the housing and the optical mechanical module.

Disclosure of Invention

Based on this, it is necessary to provide a projector that is firmly and reliably assembled.

A projector, comprising:

the device comprises a shell, a first positioning part and a second positioning part, wherein the shell is provided with an accommodating cavity, two opposite sides of the inner wall of the top of the accommodating cavity are respectively provided with the first positioning part, and two opposite sides of the inner wall of the bottom of the accommodating cavity are respectively provided with the second positioning part;

the optical-mechanical module is arranged in the accommodating cavity; the optical-mechanical module comprises an optical-mechanical main body and a support frame arranged at the bottom of the optical-mechanical main body, wherein first matching parts are respectively arranged on two opposite sides of the top of the optical-mechanical main body, and the first matching parts and the first limiting parts are in one-to-one correspondence and are in limiting matching; the two opposite sides of the support frame are respectively provided with a second matching part, and the second matching parts and the second limiting parts are in one-to-one correspondence and are in limiting matching; and

the retaining member is in locking connection with the second limiting portion and the second matching portion.

In one embodiment, the first position-limiting portion has a first position-limiting groove, the first engaging portion includes an engaging post protruding from the top of the optical machine body, and the engaging post is disposed in the first position-limiting groove.

In one embodiment, the matching column extends along the height direction of the optical-mechanical module;

first spacing portion includes first spacing muscle, the spacing muscle of second and the spacing muscle of third, first spacing muscle with the spacing muscle of second is followed the direction of height of ray apparatus module extends, just first spacing muscle with the spacing muscle interval of second sets up relatively, the spacing muscle of third is located first spacing muscle with between the spacing muscle of second, first spacing muscle the spacing muscle of second with enclose between the spacing muscle of third establish form with the cooperation post adaptation first spacing groove.

In one embodiment, the first limiting part further comprises a first connecting rib, the first connecting rib is respectively connected with the first limiting rib and the second limiting rib, and the first connecting rib is provided with a first opening communicated with the first limiting groove;

the one end that first connecting rib kept away from the shell is equipped with first spigot surface and second spigot surface, first spigot surface with the second spigot surface is located first opening is kept away from one side of shell, first spigot surface for first spacing muscle is to keeping away from the direction slope of the spacing muscle of second, the second spigot surface for the spacing muscle of second is to keeping away from the direction slope of first spacing muscle.

In one embodiment, the support frame includes a support table connected to the bottom of the optical machine main body, the second fitting portion includes a protruding portion protruding from the edge of the support table, the second limiting portion includes a stud, the stud is provided with a threaded hole, the protruding portion is provided with a via hole opposite to the threaded hole, the locking member is a screw, and the screw passes through the via hole and is screwed with the threaded hole.

In one embodiment, the protruding part is provided with at least one first matching groove, and the notch of the first matching groove faces the second limiting part correspondingly; the second limiting part comprises at least one fourth limiting rib, and the fourth limiting rib is arranged in the first matching groove.

In one embodiment, the second matching portion further includes a first matching rib and a second matching rib, the first matching rib and the second matching rib are respectively disposed on two sides of the protruding portion, and the protruding portion, the first matching rib and the second matching rib are surrounded to form a second matching groove;

the second limiting part further comprises at least one fifth limiting rib, and the at least one fifth limiting rib is arranged in the second matching groove and is in limiting matching with the second matching groove.

In one embodiment, the fifth limiting rib extends from the fourth limiting rib toward the top of the accommodating cavity, and the first and second mating ribs both extend from the protruding portion toward the top of the optical mechanical module;

the second limiting part further comprises a second connecting rib, the second connecting rib is transversely arranged between the fourth limiting rib and the fifth limiting rib, and the stud is arranged on one side, facing the bottom of the accommodating cavity, of the second connecting rib; and/or the second limiting part further comprises third connecting ribs which are transversely arranged and connected to all the third connecting ribs.

In one embodiment, the housing includes a first housing and a second housing that are disposed opposite to each other, the first housing and the second housing are connected in an involution manner, the inner walls of the tops of the first housing and the second housing are both provided with the first limiting portion, and the inner walls of the bottoms of the first housing and the second housing are both provided with the second limiting portion.

In one embodiment, the housing further includes a front cover, a rear cover and a bottom cover, and the first housing, the second housing, the front cover, the rear cover and the bottom cover enclose to form an accommodation cavity; after the first shell and the second shell are connected in a closing mode, a second opening is formed in the front portions of the first shell and the second shell, the front cover is arranged at the second opening, a third opening is formed in the rear portions of the first shell and the second shell, the rear cover is arranged at the third opening, a fourth opening is formed in the bottom portions of the first shell and the second shell, and the bottom cover is arranged at the fourth opening.

Foretell projector, during the installation, with the spacing cooperation of first spacing portion and first cooperation portion to carry out spacing fixed with the relative both sides at ray apparatus main part top and the relative both sides of acceping the chamber top inner wall, carry out spacing fixed with the spacing cooperation of second spacing portion and second cooperation portion again, carry out spacing fixed with the relative both sides of support frame and the relative both sides of acceping the chamber bottom inner wall, and through spacing portion of retaining member locking connection second and second cooperation portion, thereby accomplish the assembly of shell and ray apparatus module. So, can realize the firm assembly of shell and ray apparatus module. In addition, the optical machine module is fixed in an integral leading-in mode, and therefore assembly efficiency can be improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

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 introduced 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 projector according to an embodiment of the invention;

FIG. 2 is an exploded view of the projector shown in FIG. 1;

FIG. 3 is a partial exploded view of the projector shown in FIG. 2;

fig. 4 is a schematic structural view of a first housing of the projector shown in fig. 3;

FIG. 5 is a schematic diagram of an optical-mechanical module of the projector shown in FIG. 2;

FIG. 6 is a schematic view of an optical-mechanical module of the projector shown in FIG. 2 at another viewing angle;

fig. 7 is an exploded view of the projector shown in fig. 6.

The reference numbers illustrate: 10. a housing; 11. a first housing; 12. a second housing; 13. a first limiting part; 131. a first limiting rib; 132. a second limiting rib; 133. a third limiting rib; 134. a first connecting rib; 1341. a first opening; 1342. a first guide surface; 1343. a second guide surface; 135. a first limit groove; 14. a second limiting part; 141. a fourth limiting rib; 142. a second connecting rib; 1421. a stud; 143. a fifth limiting rib; 144. a third connecting rib; 16. a front cover; 17. a rear cover; 18. a bottom cover; 19. a decorative sheet; 20. an opto-mechanical module; 21. a light machine main body; 211. a first mating portion; 2111. a mating post; 22. a support frame; 221. a support table; 222. a second mating portion; 2221. a projection; 2222. a first mating groove; 2223. a via hole; 2224. a first mating rib; 2225. a second mating groove; 2226. a second mating rib; 23. a projection lens; 24. a first heat sink; 241. a heat sink; 242. a heat conducting pipe; 243. a heat conductive substrate; 25. a fan; 26. a circuit board; 27. a second heat sink; 28. and a third heat sink.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.

Referring to fig. 1, fig. 2 and fig. 3, a projector according to an embodiment of the invention includes a housing 10, an optical-mechanical module 20 and a locking member. The housing 10 has a receiving cavity, and the optical module 20 is disposed in the receiving cavity. The two opposite sides of the inner wall of the top of the accommodating cavity are respectively provided with a first limiting part 13, and the two opposite sides of the inner wall of the bottom of the accommodating cavity are respectively provided with a second limiting part 14. The optical-mechanical module 20 includes an optical-mechanical main body 21 and a supporting frame 22 installed at the bottom of the optical-mechanical main body 21, wherein first matching portions 211 are respectively arranged at two opposite sides of the top of the optical-mechanical main body 21, and the first matching portions 211 and the first limiting portions 13 are in one-to-one correspondence and are in limiting matching. The two opposite sides of the supporting frame 22 are respectively provided with a second matching portion 222, the second matching portions 222 correspond to the second limiting portions 14 one by one and are in limiting matching, and the locking member is in locking connection with the second limiting portions 14 and the second matching portions 222.

The projector is characterized in that the first limiting part 13 and the first matching part 211 are in limiting matching during installation, so that the two opposite sides of the top of the optical machine main body 21 and the two opposite sides of the inner wall of the top of the accommodating cavity are limited and fixed, the second limiting part 14 and the second matching part 222 are in limiting matching, the two opposite sides of the support frame 22 and the two opposite sides of the inner wall of the bottom of the accommodating cavity are limited and fixed, the second limiting part 14 and the second matching part 222 are in locking connection through the locking part, and therefore the assembly of the shell 10 and the optical machine module 20 is completed. In this manner, a secure assembly of the housing 10 and opto-mechanical module 20 may be achieved. In addition, the optical-mechanical module 20 is fixed in an integral leading-in mode, so that the assembly efficiency can be improved.

In one embodiment, referring to fig. 3 and 4, the first position-limiting portion 13 is provided with a first position-limiting groove 135, the first engaging portion 211 includes an engaging post 2111 protruding from the top of the carriage body 21, and the engaging post 2111 is disposed in the first position-limiting groove 135. During installation, the matching post 2111 at the top of the optical machine main body 21 is arranged in the first limit groove 135 of the inner wall at the top of the accommodating cavity, so that the optical machine main body 21 and the shell 10 are limited and fixed.

Optionally, the first position-limiting groove 135 is a cylindrical groove or a rectangular groove, and the matching post 2111 is a cylindrical post or a rectangular post. Of course, in other embodiments, the first position-limiting groove 135 and the matching post 2111 may have other shapes, but not limited thereto.

Further, referring to fig. 3 and 4, the mating posts 2111 extend along the height of the opto-mechanical module 20. First spacing portion 13 includes first spacing muscle 131, the spacing muscle 132 of second and the spacing muscle 133 of third, the direction of height of the spacing muscle 131 of first spacing muscle 131 and second 132 along ray apparatus module 20 extends, and the spacing muscle 132 interval of first spacing muscle 131 and second sets up relatively, the spacing muscle 133 of third is located between the spacing muscle 131 of first spacing muscle 131 and second 132, first spacing muscle 131, enclose between the spacing muscle 132 of second and the third 133 and establish the first spacing groove 135 that forms and cooperation post 2111 adaptation. It should be noted that the first limiting groove 135 has a first notch and a second notch, the first notch faces the matching post 2111, and the second notch faces the bottom of the receiving cavity. During installation, the matching post 2111 is aligned to the first notch, and an external force acts on the housing 10 or the optical mechanical module 20, so that the matching post 2111 enters the first limiting groove 135 through the first notch, and after the housing 10 and the optical mechanical module 20 are relatively fixed, the matching post 2111 is simultaneously positioned in the second notch and the first limiting groove 135. Thus, after the matching post 2111 is disposed in the first limiting groove 135, the first limiting rib 131 and the second limiting rib 134 can limit the front and back movement of the matching post 2111.

Optionally, referring to fig. 3 and 4, the third limiting rib 133 is disposed between the first limiting rib 131 and the second limiting rib 132, the third limiting rib 133 is connected to the first limiting rib 131 and the second limiting rib, and the third limiting rib 133 is located above the matching post 2111, so that the first limiting groove 135 is defined below the third limiting rib 133 and the space between the first limiting rib 131 and the second limiting rib for limiting matching with the matching post 2111. Connect first spacing muscle 131 and the spacing muscle of second through third spacing muscle 133, can improve the intensity of first spacing muscle 131 and the spacing muscle of second.

Optionally, in other embodiments, the third limiting rib 133 is disposed between the first limiting rib 131 and the second limiting rib 132, and an end surface of the third limiting rib 133 on a side away from the housing 10 abuts against the matching post 2111. Specifically, the extension length of the third limiting rib 133 in the direction away from the housing 10 is smaller than the extension length of the first limiting rib 131 and the second limiting rib 132 in the direction away from the housing 10, so that the end surface of one side of the third limiting rib 133 away from the housing 10 is located between the first limiting rib 131 and the second limiting rib 132, that is, the distance between the end surface of one side of the third limiting rib 133 away from the housing 10 and the housing 10 is smaller than the distance between the end surface of one side of the housing 10 away from the housing 10 and the housing 10, so that after the matching post 2111 is arranged in the first limiting groove 135, the end surface of one side of the third limiting rib 133 away from the housing 10 abuts against the matching post 2111, and therefore the left-right movement of the matching post 2111 can be limited. It should be noted that one or more third limiting ribs 133 may be provided, and the extending direction of the third limiting ribs 133 may be along the height direction or the transverse direction of the optical mechanical module 20.

Further, referring to fig. 3 and 4, the first limiting portion 13 further includes a first connecting rib 134, the first connecting rib 134 is connected to the first limiting rib 131 and the second limiting rib 132, and the first connecting rib 134 is provided with a first opening 1341 communicated with the first limiting groove 135. Through setting up first opening 1341 at first splice bar 134, interference takes place when having avoided cooperation post 2111 to assemble first spacing groove 135, plays and keeps away a position effect, and first opening 1341 is close to the terminal surface of shell 10 moreover and can the butt cooperation post 2111, can restrict the removal about of cooperation post 2111. Thus, the first limiting rib 131, the second limiting rib 132 and the first opening 1341 on the opposite sides of the housing are in limiting fit with the matching post 2111, so that the matching post 2111 is limited in the front, back, left and right directions.

Furthermore, referring to fig. 4, one end of the first connecting rib 134 away from the housing 10 is provided with a first guide surface 1342 and a second guide surface 1343, the first guide surface 1342 and the second guide surface 1343 are located one side of the first opening 1341 away from the housing 10, the first guide surface 1342 inclines in a direction away from the second limiting rib 132 relative to the first limiting rib 131, and the second guide surface 1343 inclines in a direction away from the first limiting rib 131 relative to the second limiting rib 132. Specifically, the first connecting rib 134 is transversely disposed to be connected with the first limiting rib 131 and the second limiting rib 132, respectively. The length of the first connecting rib 134 is greater than the lengths of the first limiting rib 131 and the second limiting rib 132, so that one end of the first connecting rib 134, which is far away from the housing 10, protrudes out of the first limiting rib 131 and the second limiting rib 132; the width of the first connecting rib 134 is greater than the interval between the first limiting rib 131 and the second limiting rib 132, so that the two sides of the first connecting rib 134 protrude out of the first limiting rib 131 and the second limiting rib 132 respectively. One end that shell 10 was kept away from to first splice bar 134 is equipped with first spigot surface 1342 and second spigot surface 1343, first spigot surface 1342 is located one side of first spacing muscle 131, second spigot surface 1343 is located one side of the spacing muscle 132 of second, first spigot surface 1342 and the equal slope of second spigot surface 1343 set up, thereby form with first opening 1340 intercommunication and the direction opening that contracts gradually, so that cooperation post 2111 gets into first spacing groove 135 fast when the assembly, play the effect of direction. In addition, the first connecting rib 134 connects the first limiting rib 131 with the second limiting rib 132, so that the strength of the first limiting rib 131 and the strength of the second limiting rib 132 can be improved.

It should be noted that the number of the first connecting ribs 134 may be one or more than two, and if the number of the first connecting ribs 134 is one, the first connecting ribs 134 may be disposed on one side of the first limiting rib 131 and one side of the second limiting rib 132 facing the bottom of the accommodating cavity, at this time, the first opening on the first connecting rib 134 is located at the second notch of the first limiting groove 135 facing the bottom of the accommodating cavity; if the number of the first connecting ribs 134 is more than two, the first connecting ribs 134 are disposed at intervals along the height direction of the optical module 20. The number of the first connection ribs 134 may be set according to actual circumstances.

In one embodiment, referring to fig. 3, 4 and 5, the support frame 22 includes a support base 221 connected to the bottom of the carriage body 21. The second fitting portion 222 includes a protruding portion 2221 protruding from the edge of the supporting platform 221, the second position-limiting portion 14 further includes a stud 1421, and the stud 1421 is provided with a threaded hole. The projection 2221 is provided with a through hole 2223 opposite to the screw hole. The retaining member is a screw, and the screw passes through the through hole 2223 and is in threaded connection with the threaded hole. During installation, after the second limiting part 14 and the second matching part 222 are in limiting matching, the threaded hole and the through hole 2223 are oppositely arranged, and a screw is arranged in the threaded hole and the through hole 2223, so that the screw penetrates through the through hole 2223 to be in threaded connection with the threaded hole, and the shell 10 and the support frame 22 are firmly and reliably connected. Optionally, when the housing 10 is assembled with the opto-mechanical module 20, the stud 1421 is located on the upper side of the protruding portion 2221 of the support platform 221, and a screw passes through the through hole 2223 from bottom to top to connect with the threaded hole, so as to facilitate assembly. Of course, in other embodiments, other structures may be used to connect the housing 10 to the support frame 22.

Further, referring to fig. 3, 4 and 5, the protrusion 2221 is provided with at least one first fitting groove 2222, and the notch of the first fitting groove 2222 faces the second position-limiting portion 14. The second position-limiting portion 14 includes at least one fourth position-limiting rib 141, and the fourth position-limiting rib 141 is disposed in the first fitting groove 2222. During the installation, aim at first cooperation groove 2222 with the fourth spacing muscle 141 of shell 10, external force acts on shell 10 or ray apparatus module 20 for in fourth spacing muscle 141 gets into first cooperation groove 2222, realize the spacing fixed of support frame 22 and shell 10 bottom.

Further, referring to fig. 3, 4 and 5, the first fitting grooves 2222 are provided in at least two, and at least two first fitting grooves 2222 are spaced apart. The number of the fourth limiting ribs 141 is at least two, the at least two fourth limiting ribs 141 are arranged at intervals, and the at least two fourth limiting ribs 141 are respectively arranged in the at least two first matching grooves 2222 in a one-to-one correspondence manner. In this way, the assembly of the support frame 22 and the bottom of the housing 10 is more secure and reliable.

In this embodiment, there are two first fitting grooves 2222, two first fitting grooves 2222 are spaced apart from each other, and the two first fitting grooves 2222 are located at two sides of the through hole 2223, respectively. The number of the fourth limiting ribs 141 is two, the two fourth limiting ribs 141 are arranged at intervals, and the two fourth limiting ribs 141 are correspondingly arranged in the two first matching grooves 2222 one by one.

In an embodiment, referring to fig. 3, 4 and 5, the second matching portion 222 further includes a first matching rib 2224 and a second matching rib 2226, the first matching rib 2224 and the second matching rib 2226 are respectively disposed at two sides of the protruding portion 2221, and the protruding portion 2221, the first matching rib 2224 and the second matching rib 2226 are surrounded to form a second matching groove 2225. The second position-limiting portion 14 further includes at least one fifth position-limiting rib 143, and the at least one fifth position-limiting rib 143 is disposed in the second fitting groove 2225 and is in position-limiting fit with the second fitting groove 2225. During installation, the fifth limiting rib 143 is disposed in the second fitting groove 2225 and is in limiting fit with the second fitting groove 2225, so that the firmness of the connection between the support frame 22 and the bottom of the housing 10 can be further improved.

Further, referring to fig. 3, 4 and 5, the fifth limiting rib 143 extends from the fourth limiting rib 141 toward the top of the housing 10, and the first mating rib 2224 and the second mating rib 2226 both extend from the protruding portion 2221 toward the top of the opto-mechanical module 20. Thus, installation interference is avoided.

Further, referring to fig. 3 and 4, the second limiting portion 14 further includes a second connecting rib 142, and the second connecting rib 142 is transversely disposed between the fourth limiting rib 141 and the fifth limiting rib 143. Specifically, the fourth limiting rib 141 extends from the second connecting rib 142 toward the bottom of the accommodating cavity, and the fifth limiting rib 143 extends from the second connecting rib 142 toward the top of the accommodating cavity. The stud 1421 is disposed on a side of the second connecting rib 142 facing the bottom of the accommodating cavity. The second position-limiting portion 14 further includes third connecting ribs 144, and the third connecting ribs 144 are transversely disposed and connected to all the third connecting ribs 144. Specifically, the third connecting rib 144 is disposed on a side of the second connecting rib 142 facing the top of the receiving cavity. When the connector is assembled, the fourth limiting rib 141 is disposed in the first engaging groove 2222, and then the locking member is disposed in the stud 1421 and the through hole to lock and connect the second connecting rib 142 and the protruding portion 2221, so as to firmly and reliably connect the housing 10 and the supporting frame 22. In addition, through setting up second splice bar 142 and third splice bar 144, fourth spacing muscle 141 and the spacing muscle 143 of fifth are connected to second splice bar 142, and third splice bar 144 is connected to third splice bar 144, can improve the intensity of the spacing muscle 141 of fourth and the spacing muscle 143 of fifth like this. Of course, in other embodiments, the studs 1421 may be disposed on the inner wall of the housing 10.

In one embodiment, referring to fig. 1, 2 and 3, the housing 10 includes a first housing 11 and a second housing 12 disposed opposite to each other, and the first housing 11 and the second housing 12 are connected together. The inner walls of the tops of the first shell 11 and the second shell 12 are both provided with a first limiting portion 13, and the inner walls of the bottoms of the first shell 11 and the second shell 12 are both provided with a second limiting portion 14. During installation, the first limiting portion 13 and the second limiting portion 14 of the first housing 11 are respectively in limiting fit with the first matching portion 211 and the second matching portion 222 of the optical mechanical module 20, the first limiting portion 13 and the second limiting portion 14 of the second housing 12 are respectively in limiting fit with the first matching portion and the second matching portion 222 of the optical mechanical module 20, and finally the first housing 11 and the second housing 12 are connected in a closing manner.

In the present embodiment, the first casing 11 and the second casing 12 are left and right casings, respectively.

Optionally, a buckle is arranged at the joint of the first housing 11, a clamping groove is arranged at the joint of the second housing 12, and the buckle and the clamping groove are matched to realize involutory connection of the first housing 11 and the second housing 12. Or, the joint of the first shell 11 is provided with a clamping groove, the joint of the second shell 12 is provided with a buckle, and the buckle is arranged in the clamping groove to realize the involutory connection of the first shell 11 and the second shell 12. Of course, in other embodiments, the first housing 11 and the second housing 12 may be connected in a matching manner by other structures.

Further, referring to fig. 2, the housing 10 further includes a front cover 16, a rear cover 17 and a bottom cover 18, and the first housing 11, the second housing 12, the front cover 16, the rear cover 17 and the bottom cover 18 are surrounded to form a receiving cavity. Specifically, after the first housing 11 and the second housing 12 are connected in an involution manner, a second opening is arranged at the front part of the first housing 11 and the second housing 12, and the front cover 16 is arranged at the second opening; a third opening is formed in the rear parts of the first shell 11 and the second shell 12, and a rear cover 17 is arranged in the third opening; the bottom of the first housing 11 and the second housing 12 is provided with a fourth opening, and the bottom cover 18 is provided at the fourth opening. Further, a decorative sheet 19 is provided on the outer side of the front cover 16.

In one embodiment, referring to fig. 5, 6 and 7, the projector further includes a blower 25 and a light source device provided below the front portion of the main body 21 of the projector. The projection lens 23 is connected to the upper front portion of the optical machine main body 21, the first heat dissipation device 24 is arranged below the projection lens 23, and the first heat dissipation device 24 is connected with the light source device in a heat conduction mode. The fan 25 is arranged below the support frame 22, the fan 25 is provided with an air outlet, and the air outlet faces the first heat dissipation device 24. When the projector is in operation, the light source device generates heat and transfers the heat to the first heat sink 24. At this time, the fan 25 blows cooling air flow to the first heat dissipation device 24, and the cooling air flow takes away heat on the first heat dissipation device 24, so that heat dissipation of the light source device is realized. In the present embodiment, the light source device is an LED light source.

Alternatively, referring to fig. 6 and 7, the first heat dissipation device 24 includes a heat sink 241, a heat pipe 242, and a heat conductive substrate 243. The air outlet of the fan 25 faces the heat sink 241. One end of the heat conductive pipe 242 is thermally connected to the heat sink 241, the other end is thermally connected to the heat conductive substrate 243, and the heat conductive substrate 243 is thermally connected to the light source device. When the projector is in operation, heat generated by the light source device is first conducted to the heat conducting substrate 243, and then conducted to the heat sink 241 through the heat conducting pipe 242. The fan 25 blows cooling air flow to the heat sink 241, and the cooling air flow takes away heat on the heat sink 241, thereby achieving heat dissipation of the light source device.

Further, referring to fig. 5 and 6, a light modulator is further disposed in the light engine main body 21. The side of the optical machine body 21 departing from the projection lens 23 is provided with a second heat sink 27, and the second heat sink 27 is in heat conduction connection with the optical modulator. The fan 25 is further provided with a first air inlet, and the first air inlet is located on one side of the fan 25 facing the bottom of the optical engine main body 21. Specifically, the housing 10 is provided with an air inlet hole and an air outlet hole. When the projector works, the light modulator generates heat and transmits the heat to the second heat dissipation device 27, at the moment, the fan 25 rotates to generate negative pressure, so that cooling air flows into the shell 10 through the air inlet hole and flows through the second heat dissipation device 27 to take away the heat on the second heat dissipation device 27 and dissipate the heat for the light modulator; then the cooling air flow is sucked by the first air inlet of the fan 25, and the cooling air flow discharged from the air outlet of the fan 25 flows through the first heat dissipation device 24 and is finally discharged out of the housing 10 from the air outlet. In this embodiment, the light modulator is an LCD.

Further, referring to fig. 5, 6, and 7, the projector further includes a circuit board 26, and the circuit board 26 is disposed below the blower 25. The side of the circuit board 26 facing the fan 25 is provided with a third heat sink 28, and the third heat sink 28 is connected to the circuit board 26 in a heat conducting manner. The fan 25 is further provided with a second air inlet, the second air inlet is located on one side of the fan 25 departing from the optical engine main body 21 and is opposite to the first air inlet, that is, the second air inlet faces the third heat sink 28. When the projector works, the circuit board 26 generates heat and transfers the heat to the third heat dissipation device 28, and at this time, the second air inlet of the fan 25 sucks cooling air to flow through the third heat dissipation device 28 to take away the heat on the third heat dissipation device 28, so as to dissipate the heat of the circuit board 26. In addition, the optical machine main body 21, the fan 25 and the circuit board 26 are stacked, so that the internal space of the housing 10 can be reasonably utilized, the space utilization rate is improved, and the reduction of the size of the projector is facilitated.

In this embodiment, the housing 10 and the optical mechanical module 20 are assembled as follows:

(1) The matching post 2111 on one side of the optical engine main body 21 is arranged in the first limit groove 135 of the first shell 11;

(2) The fifth limiting rib 143 of the first housing 11 is disposed in the second fitting groove 2225 on one side of the support stand 221;

(3) The fourth limiting rib 141 of the first housing 11 is arranged in the first matching groove 2222 on one side of the support platform 221;

(4) Then, the matching post 2111 on the other side of the top of the optical machine main body 21 is arranged in the first limit groove 135 of the second shell 12;

(5) The fifth limiting rib 143 of the second housing 12 is disposed in the second fitting groove 2225 on the other side of the support table 221;

(6) The fourth limiting rib 141 of the second housing 12 is arranged in the first matching groove 2222 at the other side of the support platform 221;

(7) The first shell 11 and the second shell 12 are connected in a matching way, and a stud 1421 of the first shell 11 and a protruding part 2221 on one side of the support platform 221 and a stud 1421 of the second shell 12 and a protruding part 2221 on the other side of the support platform 221 are connected in a locking way through a locking piece from a third opening at the bottom;

(8) And finally, assembling the front cover 16, the rear cover 17 and the bottom cover 18 to complete the assembly of the whole projector.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used 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 defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A projector, characterized by comprising:

the shell is provided with an accommodating cavity, the two opposite sides of the inner wall of the top of the accommodating cavity are respectively provided with a first limiting part, and the two opposite sides of the inner wall of the bottom of the accommodating cavity are respectively provided with a second limiting part;

the optical-mechanical module is arranged in the accommodating cavity; the optical machine module comprises an optical machine main body and a support frame arranged at the bottom of the optical machine main body, wherein first matching parts are respectively arranged at two opposite sides of the top of the optical machine main body, and the first matching parts and the first limiting parts are in one-to-one correspondence and are in limiting matching; the two opposite sides of the support frame are respectively provided with a second matching part, and the second matching parts and the second limiting parts are in one-to-one correspondence and are in limiting matching; and

the retaining member is in locking connection with the second limiting part and the second matching part.

2. The projector as claimed in claim 1, wherein the first position-limiting portion has a first position-limiting groove, the first engaging portion includes an engaging post protruding from the top of the carriage body, and the engaging post is disposed in the first position-limiting groove.

3. The projector of claim 2 wherein the mating post extends along a height of the opto-mechanical module;

4. The projector according to claim 3, wherein the first position-limiting portion further comprises a first connecting rib, the first connecting rib is connected to the first position-limiting rib and the second position-limiting rib, and the first connecting rib is provided with a first opening communicated with the first position-limiting groove;

5. The projector according to claim 1, wherein the supporting frame comprises a supporting platform connected to a bottom of the optical main body, the second fitting portion comprises a protruding portion protruding from an edge of the supporting platform, the second limiting portion comprises a stud, the stud is provided with a threaded hole, the protruding portion is provided with a through hole opposite to the threaded hole, the locking member is a screw, and the screw penetrates through the through hole and is in threaded connection with the threaded hole.

6. The projector as claimed in claim 5, wherein the protrusion is provided with at least one first engaging groove, and the notch of the first engaging groove faces the second position-limiting portion; the second limiting part comprises at least one fourth limiting rib, and the fourth limiting rib is arranged in the first matching groove.

7. The projector according to claim 6, wherein the second engaging portion further comprises a first engaging rib and a second engaging rib, the first engaging rib and the second engaging rib are respectively disposed on two sides of the protruding portion, and the protruding portion, the first engaging rib and the second engaging rib are surrounded to form a second engaging groove;

8. The projector as claimed in claim 7, wherein the fifth limiting rib extends from the fourth limiting rib toward the top of the accommodating cavity, and the first and second engaging ribs extend from the protruding portion toward the top of the optical module;

9. The projector according to any one of claims 1 to 8, wherein the housing includes a first housing and a second housing that are disposed opposite to each other, the first housing and the second housing are connected in an involution manner, the first limiting portion is disposed on an inner wall of a top of each of the first housing and the second housing, and the second limiting portion is disposed on an inner wall of a bottom of each of the first housing and the second housing.

10. The projector as claimed in claim 9, wherein the housing further comprises a front cover, a rear cover and a bottom cover, and the first housing, the second housing, the front cover, the rear cover and the bottom cover are enclosed to form a receiving cavity; after the first shell and the second shell are connected in a closing mode, a second opening is formed in the front portions of the first shell and the second shell, the front cover is arranged at the second opening, a third opening is formed in the rear portions of the first shell and the second shell, the rear cover is arranged at the third opening, a fourth opening is formed in the bottom portions of the first shell and the second shell, and the bottom cover is arranged at the fourth opening.