CN217157068U

CN217157068U - Optical machine module

Info

Publication number: CN217157068U
Application number: CN202220295352.4U
Authority: CN
Inventors: 刘宪; 蓝智; 李屹
Original assignee: Appotronics Corp Ltd
Current assignee: Shenzhen Appotronics Corp Ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-08-09
Anticipated expiration: 2032-02-14

Abstract

The application provides an optical-mechanical module, including optical-mechanical main part, radiator and spacing portion, the radiator with the clearance has between the optical-mechanical main part, the optical-mechanical main part is including leading to the unthreaded hole and setting up in the digital micromirror device that leads to the unthreaded hole, the radiator with digital micromirror device thermal connection and flexonics, spacing portion is located in the clearance, and fixed stay in the optical-mechanical main part with between the radiator, consequently, through the optical-mechanical main part with fix between the radiator spacing portion has restricted the amplitude of radiator has avoided because the vibration causes the damage of digital micromirror device.

Description

Optical machine module

Technical Field

The application relates to the field of optics, in particular to ray apparatus module.

Background

In the prior art, the digital micromirror device tends to be more and more miniaturized, but the heat dissipation requirement for the digital micromirror device is gradually improved, so that the heat sink is large in size and heavy in mass, because the digital micromirror device is flexibly connected with the heat sink, the digital micromirror device is staggered with the heavy perpendicular line of the heat sink, in the vibration process, the amplitude of a part of the heat sink facing to one side of the center of gravity of the heat sink is large, and the amplitude of a part of the heat sink facing to one side of the digital micromirror device is small, so that the surface stress of the digital micromirror device is uneven, and the digital micromirror device is easily damaged due to vibration. Therefore, it is an urgent need to provide an optical module that can reduce the damage of the digital micromirror device caused by vibration.

SUMMERY OF THE UTILITY MODEL

The application provides a ray apparatus module in order to reduce the technical problem of the digital micro mirror device damage that causes because the vibration.

For solving above-mentioned problem, this application provides an optical mechanical module, including ray apparatus main part, radiator and spacing portion, the radiator with the clearance has between the ray apparatus main part, the ray apparatus main part is including leading to the unthreaded hole and setting up in leading to the downthehole digital micro mirror device of unthreaded, the radiator with digital micro mirror device thermal connection and flexonics, spacing position in the clearance, and fixed stay in the ray apparatus main part with between the radiator.

Wherein, the radiator includes radiator main part, connecting portion and inserted part, connecting portion connect in the radiator main part with between the inserted part, the inserted part inserts logical unthreaded hole with digital micro mirror device thermal connection and flexonics, connecting portion are located in the clearance.

Wherein, one end of the inserting part facing to the digital micro-mirror device is provided with an elastic piece.

The limiting part comprises a supporting part, a first fixing part and a second fixing part, the supporting part is located in the gap and supports against the radiator main body and the optical machine main body, the first fixing part is fixedly connected with the radiator main body, and the second fixing part is fixedly connected with the optical machine main body.

The radiator is provided with a first through hole, the first fixing portion comprises a first column body and a first fixing matching portion, the first column body is connected with the supporting portion, the first column body is inserted into the first through hole, the first fixing matching portion is fixedly matched with the first column body and clamped on the surface, far away from the supporting portion, of the first through hole.

The radiator is provided with a first through hole or a first blind hole, the first fixing portion comprises a first column body, the first column body is connected with the supporting portion, and the first column body is inserted into the first through hole or the first blind hole and is in interference fit or threaded fit with the first through hole or the first blind hole.

The radiator is provided with a first through hole, the first fixing part comprises a first fixing matching part, and the first fixing matching part penetrates through the first through hole, is fixedly matched with the supporting part and is clamped on the surface, far away from the supporting part, of the first through hole.

Wherein the supporting portion and the first fixing portion are integrally formed with the heat sink body.

Wherein, the ray apparatus main part has the second through-hole, the second fixed part includes second cylinder and the fixed cooperation portion of second, the second cylinder with the supporting part is connected, the second cylinder inserts the second through-hole, the fixed cooperation portion of second with the fixed cooperation of second cylinder, just the card is located the second through-hole is kept away from the surface of supporting part.

The optical machine main body is provided with a second through hole or a second blind hole, the second fixing part comprises a second cylinder, the second cylinder is connected with the supporting part, and the second cylinder is inserted into the second through hole or the second blind hole and is in interference fit or threaded fit with the second through hole or the second blind hole.

The optical machine main body is provided with a second through hole, the second fixing part comprises a second fixing matching part, and the second fixing matching part penetrates through the second through hole, is fixedly matched with the supporting part and is clamped on the surface, far away from the supporting part, of the second through hole.

Wherein, the supporting part and the second fixing part are integrally formed with the optical machine main body.

The beneficial effects of the embodiment of the application are that: the application provides an optical-mechanical module, including optical-mechanical main part, radiator and spacing portion, the radiator with the clearance has between the optical-mechanical main part, the optical-mechanical main part is including leading to the unthreaded hole and setting up in the digital micromirror device that leads to the unthreaded hole, the radiator with digital micromirror device thermal connection and flexonics, spacing portion is located in the clearance, and fixed stay in the optical-mechanical main part with between the radiator, consequently, through the optical-mechanical main part with fix between the radiator spacing portion has restricted the amplitude of radiator has avoided because the vibration causes the damage of digital micromirror device.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic structural diagram of a first embodiment of an optical-mechanical module provided in the present application;

fig. 2 is a schematic structural diagram of a second embodiment of an opto-mechanical module according to the present application;

FIG. 3 is an exploded perspective view of the optical module shown in FIG. 2;

fig. 4 is a schematic structural diagram of a third embodiment of an opto-mechanical module according to the present application;

fig. 5 is a schematic structural diagram of a fourth embodiment of an opto-mechanical module according to the present application;

fig. 6 is a schematic structural diagram of a fifth embodiment of an opto-mechanical module according to the present application;

fig. 7 is a schematic structural diagram of a sixth embodiment of an opto-mechanical module according to the present application;

fig. 8 is a schematic structural diagram of a seventh embodiment of an opto-mechanical module according to the present application;

fig. 9 is a schematic structural diagram of an eighth embodiment of an opto-mechanical module according to the present application;

fig. 10 is a schematic structural diagram of a ninth embodiment of an opto-mechanical module according to the present application;

fig. 11 is a schematic structural diagram of a tenth embodiment of an opto-mechanical module according to the present application;

fig. 12 is an exploded perspective view of the optical-mechanical module shown in fig. 11;

fig. 13 is a schematic structural diagram of an eleventh embodiment of an opto-mechanical module according to the present application;

fig. 14 is a schematic structural diagram of a twelfth embodiment of an opto-mechanical module according to the present application;

fig. 15 is a schematic structural diagram of a thirteenth embodiment of an opto-mechanical module according to the present application;

fig. 16 is a schematic structural diagram of a fourteenth embodiment of an opto-mechanical module according to the present application;

fig. 17 is a schematic structural diagram of a fifteenth embodiment of an opto-mechanical module according to the present application;

fig. 18 is a schematic structural diagram of a sixteenth embodiment of an opto-mechanical module according to the present application;

fig. 19 is an exploded perspective view of the opto-mechanical module shown in fig. 18;

fig. 20 is a schematic structural diagram of a seventeenth embodiment of an opto-mechanical module according to the present application;

fig. 21 is a schematic structural diagram of an eighteenth embodiment of an opto-mechanical module according to the present application;

fig. 22 is a schematic structural diagram of a nineteenth embodiment of the opto-mechanical module provided in the present application;

fig. 23 is a schematic structural diagram of a twentieth embodiment of the optical module provided in the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, an opto-mechanical module 10 is provided. The optical-mechanical module 10 includes an optical-mechanical main body 11, a heat sink 12 and a limiting portion 13. A gap 10a is provided between the heat sink 12 and the optical engine body 11. The optical machine main body 11 includes a light-passing hole 11a and a digital micromirror device 111 disposed in the light-passing hole 11 a. The heat sink 12 is thermally and flexibly connected to the dmd 111. The gap 10a is used for providing a movable range for the optical-mechanical main body 11 and the heat sink 12, so as to ensure that the optical-mechanical main body 11 and the heat sink 12 can move within a certain range, thereby preventing the damage of the digital micromirror device 111 caused by vibration in the use or transportation process of the optical-mechanical module 10.

The digital micromirror device 111 has a surface facing the heat sink 12. The plane of the surface is a first plane and is along a direction perpendicular to the first plane. The centre of gravity of the heat sink 12 is offset from the centre point of the surface at the point of the orthographic projection of the first plane. In practical applications, the digital micromirror device 111 tends to be more miniaturized, but the heat dissipation requirement of the digital micromirror device 111 is gradually increased, so the heat sink 12 tends to be large in size and heavy in weight, and therefore, the center of gravity of the heat sink 12 is offset from the center point of the surface at the point of the orthographic projection of the first plane, so that the amplitude of the part of the heat sink 12 facing the center of gravity side of the heat sink 12 is large, and the amplitude of the part of the heat sink 12 facing the center point side of the surface of the digital micromirror device 111 is small, thereby easily causing damage to the digital micromirror device 111.

In this application, the limiting portion 13 is located in the gap 10a and is fixedly supported between the optical mechanical main body 11 and the heat sink 12, so that the limiting portion 13 is provided between the optical mechanical main body 11 and the heat sink 12, so that the amplitude of the heat sink 12 is limited in the direction perpendicular to the first plane and in the direction parallel to the first plane, and therefore, the damage of the digital micromirror device 111 caused by vibration is avoided.

The heat sink 12 includes a heat dissipating body 121, a connecting portion 122, and an insertion portion 123. The connection part 122 is connected between the heat dissipation body 121 and the insertion part 123. The connecting portion 122 is located in the gap 10 a. The insertion portion 123 is inserted into the light passing hole 11a and thermally and flexibly connected to the digital micromirror device 111. The connecting portion 122 is located in the gap 10 a. Therefore, the insertion portion 123 can ensure that the heat sink 12 dissipates heat of the digital micromirror device 111 and flexibly contacts with the digital micromirror device 111, thereby avoiding damage to the digital micromirror device 111. The connecting portion 122 and the insertion portion 123 may be an integral structure.

The insertion portion 123 has an elastic member 124 at an end facing the dmd 111. In some embodiments, the elastic member 124 may be a spring, or an elastic foam. The spring plate, the spring and the elastic foam all have good heat conduction.

The heat dissipation body 121 may have a first through hole 12a or a first blind hole 12b that is engaged with the position limiting portion 13. The optical engine main body 11 may have a second through hole 11b or a second blind hole 11c that is engaged with the stopper 13.

The position limiting portion 13 includes a supporting portion 131, a first fixing portion 132 and a second fixing portion 133. The supporting portion 131 is located in the gap 10a and abuts against the heat dissipation body 121 and the optical engine body 11. The first fixing portion 132 is fixedly connected to the heat dissipating body 121. The second fixing portion 133 is fixedly connected to the optical device body 11. The fixing means includes, but is not limited to, screwing, welding, buckling, riveting, and bonding.

In this embodiment, the heat dissipation body 121 and the optical engine body 11 are both provided with a notch 10b, so that a fixing platform 10c is formed on the heat dissipation body 121 and the optical engine body 11. The heat sink 12 has a first through hole 12 a. The first fixing portion 132 includes a first column 1321 and a first fixing engagement portion 1322. The first column 1321 is connected to the support 131. The first column 1321 is inserted into the first through hole 12 a. The first fixing and fitting portion 1322 is fixedly fitted with the first column 1321 and is clamped on the surface of the first through hole 12a away from the supporting portion 131. The optical engine main body 11 has a second through hole 11 b. The second fixing part 133 includes a second cylinder 1331 and a second fixing engagement part 1332. The second cylinder 1331 is connected to the supporting part 131. The second cylinder 1331 is inserted into the second through hole 11 b. The second fixing matching part 1332 is fixedly matched with the second cylinder 1331 and is clamped on the surface of the second through hole 11b far away from the supporting part 131. In this embodiment, the outer diameter of the first column 1321 is smaller than the outer diameter of the first through hole 12a, the first fixing and engaging portion 1322 is a screw, a threaded hole is further disposed in the first through hole 12a, and the first fixing and engaging portion 1322 is screwed into the threaded hole to fixedly engage the first fixing and engaging portion 1322 with the first column 1321, and is clamped on the surface of the first through hole 12a away from the supporting portion 131. In other embodiments, the first fixing matching portion 1322 may also be solder, and the first fixing matching portion 1322 and the first column 1321 are fixed by welding the first column 1321 in the first through hole 12 a. For other fixing methods, reference may be made to the prior art, and details are not described herein. The outer diameter of the second cylinder 1331 is smaller than the outer diameter of the second through hole 11b, the second fixing matching part 1332 is a screw, a threaded hole is further formed in the second through hole 11b, and the second fixing matching part 1332 is screwed into the threaded hole to fixedly match the second fixing matching part 1332 with the second cylinder 1331 and is clamped on the surface, far away from the supporting part 131, of the second through hole 11 b. In other embodiments, the second fixing matching part 1332 may also be solder, and the second fixing matching part 1332 and the second post 1331 are fixed by welding the second post 1331 in the second through hole 11 b. For other fixing methods, reference may be made to the prior art, and details are not described herein.

In this embodiment, the first fixing portion 132 is fixedly connected to the heat sink 12, and the second fixing portion 133 is fixedly connected to the optical engine main body 11, so that the movement between the heat sink 12 and the digital micromirror device 111 is limited in the direction parallel to the first plane, and the damage to the digital micromirror device 111 caused by vibration is further eliminated.

Referring to fig. 2-3, the second embodiment differs from the first embodiment in that: the optical engine main body 11 has a second through hole 11b or a second blind hole 11c, the second fixing portion 133 includes a second cylinder 1331, the second cylinder 1331 is connected to the support portion 131, and the second cylinder 1331 is inserted into the second through hole 11b or the second blind hole 11c, and is in interference fit with or screwed to the second through hole 11b or the second blind hole 11 c. In fig. 3, it can be seen that the surface of the second post 1331 is threaded, and correspondingly, the inner wall of the second blind hole 11c is also threaded inside the second blind hole 11c, so that the second post 1331 and the second through hole 11b can be fixedly connected. In other embodiments, the outer diameter of the second cylinder 1331 may be designed to be slightly larger than the inner diameter of the second through hole 11b or the second blind hole 11c, so that the second cylinder 1331 and the second through hole 11b may be in interference fit.

Referring to fig. 4, the third embodiment is different from the first embodiment in that: the second through hole 11b of the optical engine main body 11, the second fixing portion 133 includes a second fixing matching portion 1332, the second fixing matching portion 1332 passes through the second through hole 11b to be fixedly matched with the supporting portion 131, and is clamped on the surface of the second through hole 11b far away from the supporting portion 131, that is, in this embodiment, the second column 1331 is not disposed on one side of the limiting portion 13 facing the optical engine main body 11, and the limiting portion 13 is fixedly connected with the optical engine main body 11 only through the second fixing matching portion 1332. In the present embodiment, the inner diameter of the second through hole 11b is the same as the inner diameter of the connection hole provided toward the surface of the second through hole 11b by the support portion 131. The inner wall of the second through hole 11b and/or the inner wall of the connection hole provided toward the surface of the second through hole 11b by the support portion 131 is provided with a screw thread. The second fixing matching part 1332 may be a screw, and the screw is matched with the second through hole 11b and a connecting hole arranged on the surface of the support part 131 facing the second through hole 11b to fixedly connect the second fixing matching part 1332, the support part 131 and the opto-mechanical assembly.

Referring to fig. 5, the difference between the fourth embodiment and the third embodiment is: the inner diameter of the second through hole 11b is larger than the inner diameter of a connection hole provided in the support portion 131 toward the surface of the second through hole 11 b. The second fixing engagement part 1332 may be a screw having a step. In the actual manufacturing process, due to the error of the opening and the assembly convenience, the inner diameter of the second through hole 11b is often made larger than the inner diameter of the connecting hole provided by the supporting portion 131 toward the surface of the second through hole 11b, so that the screw with the step can be more suitable for the actual production requirement.

Referring to fig. 6, the fifth embodiment is different from the first embodiment in that: the limiting portion 13 and the heat dissipating body 121 are integrally formed. In order to improve the assembly efficiency, the limiting part 13 and the heat dissipation body 121 are integrally formed, so that the process of fixedly connecting the limiting part 13 and the heat sink 12 can be omitted, the assembly efficiency is reduced, and meanwhile, the types and the number of parts can be reduced, so that the assembly efficiency is reduced, and the cost is also reduced.

Referring to fig. 7 to 12, the difference between the sixth embodiment and the first embodiment, the difference between the seventh embodiment and the second embodiment, the difference between the eighth embodiment and the third embodiment, the difference between the ninth embodiment and the fourth embodiment, and the difference between the tenth embodiment and the fifth embodiment are as follows: the heat sink 12 has a first through hole 12a or a first blind hole 12b, the first fixing portion 132 includes a first column 1321, the first column 1321 is connected to the supporting portion 131, and the first column 1321 is inserted into the first through hole 12a or the first blind hole 12b, and is in interference fit or screwed with the first through hole 12a or the first blind hole 12 b.

In the tenth embodiment, the optical-mechanical assembly includes a plurality of limiting portions 13, and the structure of the limiting portions 13 and the matching relationship between the limiting portions 13 and the optical-mechanical body 11 and the heat dissipation body 121 can refer to the description of the limiting portions 13, which is not described herein again.

Referring to fig. 13 to 17, the difference between the eleventh embodiment and the sixth embodiment, the difference between the twelfth embodiment and the seventh embodiment, the difference between the thirteenth embodiment and the eighth embodiment, the difference between the fourteenth embodiment and the ninth embodiment, and the difference between the fifteenth embodiment and the tenth embodiment are as follows: the heat sink 12 has a first through hole 12a, the first fixing portion 132 includes a first fixing engagement portion 1322, and the first fixing engagement portion 1322 passes through the first through hole 12a to be fixedly engaged with the supporting portion 131, and is clamped on a surface of the first through hole 12a away from the supporting portion 131.

Referring to fig. 18 to 19, the sixteenth embodiment differs from the fifteenth embodiment in that: the inner diameter of the first through hole 12a is larger than that of a connection hole provided toward the surface of the first through hole 12a by the support portion 131. The first fixing engagement portion 1322 may be a screw having a step. In the actual manufacturing process, due to the error of the opening and the assembly convenience, the inner diameter of the first through hole 12a is often made larger than the inner diameter of the connecting hole provided by the supporting portion 131 toward the surface of the first through hole 12a, so that the screw with the step can be more suitable for the actual production.

Referring to fig. 20-23, the difference between the seventeenth embodiment and the eleventh embodiment, the difference between the eighteenth embodiment and the twelfth embodiment, the difference between the nineteenth embodiment and the thirteenth embodiment, and the difference between the twentieth embodiment and the fourteenth embodiment: the stopper 13 is integrally formed with the heat sink 12.

The above description is only an embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes performed by the content of the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. The utility model provides an optical-mechanical module, its characterized in that, includes optical-mechanical main part, radiator and spacing portion, the radiator with the clearance has between the optical-mechanical main part, the optical-mechanical main part is including leading to the unthreaded hole and setting up in leading to the downthehole digital micromirror device of unthreaded hole, the radiator with digital micromirror device thermal connection and flexonics, spacing portion is located in the clearance, and fixed stay in the optical-mechanical main part with between the radiator.

2. The opto-mechanical module of claim 1, wherein the dmd has a surface facing the heat sink, the surface lying in a first plane, and a center of gravity of the heat sink is offset from a center point of the surface at a point of an orthographic projection of the first plane in a direction perpendicular to the first plane.

3. The opto-mechanical module of claim 1, wherein the heat sink comprises a heat sink body, a connecting portion and an insertion portion, the connecting portion is connected between the heat sink body and the insertion portion, the insertion portion is inserted into the light passing hole to be thermally and flexibly connected with the digital micromirror device, and the connecting portion is located in the gap.

4. The opto-mechanical module of claim 3, wherein the insert has a resilient member at an end facing the dmd.

5. The opto-mechanical module of claim 1 wherein the limiting portion comprises a support portion, a first fixing portion and a second fixing portion, the support portion is disposed in the gap and abuts against the heat sink body and the opto-mechanical body, the first fixing portion is fixedly connected to the heat sink body, and the second fixing portion is fixedly connected to the opto-mechanical body.

6. The optical-mechanical module of claim 5, wherein the heat sink has a first through-hole, the first fixing portion includes a first cylinder and a first fixing-engaging portion, the first cylinder is connected to the supporting portion, the first cylinder is inserted into the first through-hole, and the first fixing-engaging portion is fixedly engaged with the first cylinder and is engaged with a surface of the first through-hole away from the supporting portion.

7. The opto-mechanical module of claim 5 wherein the heat sink has a first through hole or a first blind hole, the first securing portion comprises a first post, the first post is connected to the support portion, and the first post is inserted into the first through hole or the first blind hole, and is in interference fit with or screwed to the first through hole or the first blind hole.

8. The optical-mechanical module of claim 5, wherein the heat spreader has a first through-hole, and the first fixing portion includes a first fixing-engaging portion, and the first fixing-engaging portion passes through the first through-hole to be fixedly engaged with the supporting portion, and is engaged with a surface of the first through-hole away from the supporting portion.

9. The opto-mechanical module of claim 5, wherein the support portion and the first securing portion are integrally formed with the heat sink body.

10. The opto-mechanical module of any of claims 6-9 wherein the opto-mechanical body has a second through-hole, the second securing portion comprises a second post and a second securing engagement portion, the second post is connected to the support portion, the second post is inserted into the second through-hole, and the second securing engagement portion is secured to the second post and engaged with a surface of the second through-hole away from the support portion.

11. The opto-mechanical module of any of claims 6-9 wherein the opto-mechanical body has a second through hole or a second blind hole, the second securing portion comprises a second post, the second post is connected to the support portion, and the second post is inserted into the second through hole or the second blind hole, and is in interference fit or threaded engagement with the second through hole or the second blind hole.

12. The opto-mechanical module of any of claims 6-9 wherein the opto-mechanical body has a second through hole, and the second fixing portion comprises a second fixing engagement portion passing through the second through hole to be fixedly engaged with the support portion and being engaged with the surface of the second through hole away from the support portion.

13. The opto-mechanical module of any of claims 6-8 wherein the support portion and the second securing portion are integrally formed with the opto-mechanical body.