CN112437577B - Positioning and mounting structure of DMD device and electronic equipment - Google Patents
Positioning and mounting structure of DMD device and electronic equipment Download PDFInfo
- Publication number
- CN112437577B CN112437577B CN202010833172.2A CN202010833172A CN112437577B CN 112437577 B CN112437577 B CN 112437577B CN 202010833172 A CN202010833172 A CN 202010833172A CN 112437577 B CN112437577 B CN 112437577B
- Authority
- CN
- China
- Prior art keywords
- positioning
- groove
- dmd device
- mounting
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
- H05K7/12—Resilient or clamping means for holding component to structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Projection Apparatus (AREA)
Abstract
The invention provides a positioning and mounting structure of a DMD device and electronic equipment, wherein the positioning and mounting structure comprises a containing groove arranged on a shell and an elastic piece arranged in the containing groove, the containing groove is used for containing the DMD device, the groove side wall of the containing groove comprises a first groove side wall and a second groove side wall which are oppositely arranged, a first convex block used for being matched with a first positioning groove is arranged on the first groove side wall, a second convex block used for being matched with a second positioning groove is arranged on the second groove side wall, at least part of the side wall of the first convex block is a cylindrical surface, the cylindrical surface is used for being respectively matched with a first positioning surface and a second positioning surface of the first positioning groove, and the elastic piece is arranged between the groove side wall of the containing groove and the positioning and mounting part and used for tightly pressing the first positioning surface and the second positioning surface on the cylindrical surface and tightly pressing part of the groove wall of the second positioning groove on the second convex block. The positioning and mounting structure of the DMD device provided by the invention can ensure the accurate and reliable positioning of the DMD device.
Description
Technical Field
The invention relates to the technical field of DMD installation, in particular to a positioning installation structure of a DMD device and electronic equipment.
Background
A DMD (Digital micromirror Device) is a core Device of Digital Light Processing (DLP) technology, and realizes a projected image mainly by adjusting reflected light. The DMD device is electrically connected with the circuit board through a connector. The contact condition among the DMD device, the connector, and the circuit board has a great influence on the projection effect, and therefore, the accurate positioning of the DMD device is particularly important. Reliable contact of the contacts is required between the connector and the DMD device, the area of each contact is very small, the contact area between the contacts is small, and slight positional misalignment affects the contact between the contacts, which requires positioning reliability of the DMD device.
In the mounting structure of the existing DMD device, a few DMD devices are limited through the elastic limiting structures at the periphery, and a few DMD devices are directly compressed on a shell of a machine in a compression mode, so that the positioning accuracy and the reliability of the modes are difficult to guarantee.
In addition, the DMD device needs to be repeatedly disassembled and assembled during assembly, and the DMD device is very inconvenient to disassemble and assemble in a limiting mode through the peripheral elastic limiting structures, so that the debugging efficiency is influenced.
Disclosure of Invention
Based on the above situation, a primary object of the present invention is to provide a positioning and mounting structure of a DMD device and an electronic apparatus, so as to solve the technical problems in the prior art that positioning accuracy and reliability of the DMD device are difficult to guarantee and the DMD device is inconvenient to disassemble and assemble.
In order to achieve the above object, in one aspect, the invention adopts the following technical scheme:
a positioning and mounting structure of a DMD device is used for positioning and mounting the DMD device on a shell of electronic equipment, the DMD device comprises a positioning and mounting part which is roughly in a rectangular plate structure, the positioning and mounting part comprises a first short side and a second short side, a first positioning groove is formed in the first short side, the groove wall of the first positioning groove comprises a first positioning surface and a second positioning surface which are arranged at a preset included angle, and a second positioning groove is formed in the second short side;
the positioning and mounting structure comprises a containing groove arranged on the shell and an elastic piece arranged in the containing groove, the accommodating groove is used for accommodating the DMD device, the groove side wall of the accommodating groove comprises a first groove side wall and a second groove side wall which are oppositely arranged, a first lug which is used for being matched with the first positioning groove is arranged on the side wall of the first groove, a second lug which is used for being matched with the second positioning groove is arranged on the side wall of the second groove, at least part of the side wall of the first bump is a cylindrical surface which is used for being matched with the first positioning surface and the second positioning surface of the first positioning groove respectively, the elastic piece is arranged between the groove side wall of the accommodating groove and the positioning installation part, the first positioning surface and the second positioning surface are used for being pressed on the cylindrical surface, and part of groove wall of the second positioning groove is pressed on the second bump.
Preferably, the elastic member is pressed against a corner portion on the side of the second short side of the positioning and mounting portion.
Preferably, the second positioning groove is a square groove, a groove wall of the square groove close to the opening of the square groove forms a third positioning surface, the second protruding block is a square block matched with the square groove, and the elastic member is arranged on one side close to the third positioning surface so as to press the third positioning surface against the square block.
Preferably, the elastic member is a cylindrical silica gel column, and one end surface of the cylindrical silica gel column abuts against the corner of the positioning and mounting part.
Preferably, the elastic element is provided with a plurality of elastic elements, one part of the elastic element is pressed on one long side of the positioning and mounting part, and the other part of the elastic element is pressed on the second short side of the positioning and mounting part.
Preferably, a positioning structure is arranged in the accommodating groove and used for positioning the elastic piece.
Preferably, the positioning structure includes a positioning groove provided on a groove sidewall of the accommodating groove.
Preferably, the cylindrical surfaces comprise a first cylindrical surface used for being in line contact fit with the first positioning surface and a second cylindrical surface used for being in line contact fit with the second positioning surface, the first cylindrical surface and the second cylindrical surface are connected through a plane, the diameters of the first cylindrical surface and the second cylindrical surface are equal, and the axes of the first cylindrical surface and the second cylindrical surface are coincident.
Preferably, the location mounting structure still includes the gasket, the gasket sets up the cell bottom wall of storage tank with between the location installation department, and be located at least one angular position in the four corners of location installation department.
Preferably, in the thickness direction of the positioning and mounting portion, the size of the positioning and mounting portion is larger than the size of the first bump and the second bump.
On the other hand, the technical scheme adopted by the invention is as follows:
an electronic device comprises a shell and a DMD device, and further comprises a positioning and mounting structure of the DMD device, wherein the DMD device is mounted on the shell through the positioning and mounting structure.
Preferably, the electronic device is a projector or a 3D printer.
The positioning and mounting structure of the DMD device provided by the invention realizes the positioning and mounting of the DMD device by combining the hard structure and the soft structure, so that the hard structure is not easy to deform in matching (namely the matching of the first positioning surface, the second positioning surface and the cylindrical surface, the matching of the second positioning groove and the second bump, and the matching of the positioning and mounting part and the bottom wall of the accommodating groove), the accurate and reliable positioning of the DMD device can be ensured, the compression of the DMD device is realized by using the elastic piece, on one hand, the DMD device is convenient to disassemble and assemble, on the other hand, the vibration can be buffered, the use reliability of the DMD device is ensured, and in addition, when the elastic piece is insufficient due to long-time use, only the elastic piece needs to be replaced, thereby effectively reducing the maintenance cost.
Due to the fact that the positioning and mounting structure is arranged on the electronic equipment, accurate mounting of the DMD device can be guaranteed, and reliable contact of the connector, the circuit board and the DMD device is further guaranteed, so that the imaging effect of the electronic equipment is guaranteed.
Other advantages of the present invention will be described in the detailed description, and those skilled in the art will understand the technical features and technical solutions presented in the description.
Drawings
Preferred embodiments according to the present invention will be described below with reference to the accompanying drawings. In the figure:
fig. 1 is a perspective view of a positioning and mounting structure of a DMD device and the DMD device according to an embodiment of the present invention;
fig. 2 is a top view of a positioning and mounting structure of a DMD device and the DMD device according to an embodiment of the present invention;
fig. 3 is a perspective view of a positioning and mounting structure of a DMD device according to an embodiment of the invention;
fig. 4 is a top view of a positioning and mounting structure of a DMD device according to an embodiment of the invention;
fig. 5 is a perspective view of a position of a receiving slot of a housing according to an embodiment of the present invention;
FIG. 6 is a top view of a slot of a housing according to an embodiment of the present invention;
fig. 7 is a perspective view of a DMD device according to an embodiment of the invention;
fig. 8 is a top view of a projector according to an embodiment of the present invention;
fig. 9 is a partial sectional view taken along line a-a in fig. 8.
In the figure:
10. a housing; 11. a containing groove; 11a, a first groove side wall; 11b, a second groove side wall; 11c, the bottom wall of the tank; 11d, a via hole; 11e, a third groove side wall; 11f, a fourth groove side wall; 111. a first bump; 111a, a first cylindrical surface; 111b, a second cylindrical surface; 111c, plane; 112. a second bump; 113a, a first positioning projection; 113b, a second positioning projection; 113c, a step structure; 113d, a groove; 113e, a third positioning projection; 114a, a positioning groove; 114b, a groove; 114c, a groove; 114d and a positioning groove; 114e, a positioning groove; 115. a first positioning post; 116. a second positioning column;
20. a DMD device; 21. positioning the mounting part; 21a, a first short side; 21b, a second short side; 21c, a first long side; 21d a second long side; 211. a first positioning groove; 211a, a first positioning surface; 211b and a second positioning surface; 212. a second positioning groove; 212a, a third positioning surface; 22. a ceramic support; 23. a DMD chip;
30. an elastic member;
40. a gasket;
50. a base;
60. a heat dissipation structure; 61. a heat conducting portion;
70. a circuit board;
80. a connector is provided.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in order to avoid obscuring the nature of the present invention, well-known methods, procedures, and components have not been described in detail.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The term "outer side" and "inner side" as used herein refer to the electronic device itself, and the side close to the inside of the electronic device is the inner side, and the side far from the inside of the electronic device is the outer side.
The invention provides a positioning and mounting structure of a DMD device, which is used for positioning and mounting the DMD device on a shell of electronic equipment and aims to solve the problems that the positioning precision and reliability of the mounting structure of the existing DMD device are difficult to guarantee and the mounting and dismounting are inconvenient. As shown in fig. 7, the DMD device 20 includes a positioning and mounting portion 21 having a substantially rectangular plate structure, the positioning and mounting portion 21 includes a first short side 21a and a second short side 21b which are oppositely disposed, and further includes a first long side 21c and a second long side 21d which are oppositely disposed, wherein the first short side 21a is provided with a first positioning groove 211, the groove wall of the first positioning groove 211 comprises a first positioning surface 211a and a second positioning surface 211b which are arranged at a predetermined included angle, the second short side 21b is provided with a second positioning groove 212, as shown in fig. 3 and 4 with reference to fig. 5 and 6, the positioning and mounting structure includes a receiving groove 11 provided on the housing 10 and an elastic member 30 provided in the receiving groove 11, wherein, the accommodating groove 11 is used for accommodating the DMD device 20 and positioning the DMD device 20, the elastic element 30 is used for pressing the DMD device 20 in the accommodating groove 11, in this manner, the positioning and mounting of DMD device 20 is accomplished using a combination of hard and soft structures. Specifically, the accommodating groove 11 includes a first groove side wall 11a and a second groove side wall 11b which are oppositely disposed, a first protrusion 111 for being engaged with the first positioning groove 211 is disposed on the first groove side wall 11a, and a second protrusion 112 for being engaged with the second positioning groove 212 is disposed on the second groove side wall 11b, wherein at least a portion of the side wall of the first protrusion 111 is a cylindrical surface for being engaged with the first positioning surface 211a and the second positioning surface 211b of the first positioning groove 211, respectively, and the elastic member 30 is disposed between the groove wall of the accommodating groove 11 and the positioning mounting portion 21, and is configured to compress the first positioning surface 211a and the second positioning surface 211b onto the cylindrical surface, and compress a portion of the groove wall of the second positioning groove 212 onto the second protrusion 112. The first positioning surface 211a and the second positioning surface 211b are matched with the cylindrical surface for limiting, so that the motion of the DMD device 20 along the long side and the short side of the positioning installation part 21 is limited, the DMD device 20 is limited to rotate in a plane perpendicular to the inside and outside directions by the second positioning groove 212 pressed on the second bump 112, and the motion of the DMD device 20 in the outside and inside directions is limited by the bottom wall 11c of the accommodating groove 11, so that the DMD device is not easily deformed by the hard structure matching (i.e. the matching of the first positioning surface 211a and the second positioning surface 211b with the cylindrical surface, the matching of the second positioning groove 212 and the second bump 112, and the matching of the positioning installation part 21 with the bottom wall 11c of the accommodating groove 11), the DMD device 20 can be accurately and reliably positioned, the DMD device 20 is pressed by the elastic part 30, on one hand, the DMD device 20 is convenient to be disassembled and disassembled, on the other hand, the shock can be buffered, and the use reliability of the DMD device 20 is ensured, in addition, when the elastic member 30 has insufficient elasticity due to long-term use, only the elastic member 30 needs to be replaced, thereby effectively reducing the maintenance cost.
More specifically, as shown in fig. 7, the DMD device 20 includes a ceramic holder 22 and a DMD chip 23 disposed on the ceramic holder 22, a part of the structure of the ceramic holder 22 constitutes the positioning and mounting portion 21, as shown in fig. 7, the ceramic holder 22 includes the positioning and mounting portion 21 and a chip fixing portion disposed inside the positioning and mounting portion 21, the DMD chip 23 is fixed to the chip fixing portion, as shown in fig. 3 to 6, a through hole 11d is disposed on a bottom wall 11c of the accommodating groove 11, the DMD chip 23 is disposed in the through hole 11d so as to receive light, and an inner side surface of the positioning and mounting portion 21 abuts against the bottom wall 11c of the accommodating groove 11.
In order to ensure positioning reliability, the included angle between the first positioning surface 211a and the second positioning surface 211b cannot be too large or too small, and preferably, the included angle between the first positioning surface 211a and the second positioning surface 211b is 80 ° to 100 °, and more preferably 90 °. The first positioning surface 211a and the second positioning surface 211b may be directly connected, the first positioning groove 211 formed at this time is triangular, and the first positioning groove 211 is set to be triangular, which may occupy the structure of the ceramic holder 22 too much and affect the structural reliability of the ceramic holder 22, so that, preferably, as shown in fig. 7, the first positioning groove 211 is substantially isosceles trapezoid, and the sides of the trapezoid are smoothly transited through a curved surface.
The side wall of the first protrusion 111 may be formed as a continuous cylindrical surface, in which the first protrusion 111 is integrally formed in a semi-cylindrical shape, in order to avoid interference between the first protrusion 111 and the wall of the first positioning groove 211, it is preferable that the cylindrical surfaces have a discontinuous structure, for example, as shown in fig. 5 and 6, the cylindrical surfaces include a first cylindrical surface 111a for line contact engagement with the first positioning surface 211a and a second cylindrical surface 111b for line contact engagement with the second positioning surface 211b, the first cylindrical surface 111a and the second cylindrical surface 111b are connected by a plane 111c, and the first cylindrical surface 111a and the second cylindrical surface 111b have the same diameter and are axially overlapped, that is, the first cylindrical surface 111a and the second cylindrical surface 111b are actually located on the same cylindrical surface, in which the first protrusion 111 is integrally formed in a semi-cylindrical shape with a partial arc cut away, so that the structure prone to interference is removed, the smooth fit of the first protrusion 111 and the first positioning groove 211 can be ensured.
The number of the elastic elements 30 may be one or more, and the arrangement positions are not limited, as long as the first positioning surface 211a and the second positioning surface 211b can be pressed against the cylindrical surface, and part of the groove wall of the second positioning groove 212 can be pressed against the second protrusion 112. In a preferred embodiment, as shown in fig. 1 to 4, the elastic member 30 is one, and is pressed against a corner portion on one side of the second short side 21b of the positioning and mounting portion 21, specifically, the receiving groove 11 further includes a third groove side wall 11e and a fourth groove side wall 11f which are opposite, the third groove side wall 11e connects one side of the first groove side wall 11a and the second groove side wall 11b, the fourth groove side wall 11f connects the other side of the first groove side wall 11a and the second groove side wall 11b, and the elastic member 30 is disposed at an intersection position of the second groove side wall 11b and the third groove side wall 11 c. In this way, the elastic element 30 applies a force to the positioning and mounting portion 21, which is not perpendicular to both the long side and the short side, and the force can be divided into a first component parallel to the long side and a second component parallel to the short side, and the first positioning surface 211a and the second positioning surface 211b are pressed against the cylindrical surface and part of the groove wall of the second positioning groove 212 is pressed against the second protrusion 112 by the first component and the second component. At this time, it is preferable that the elastic member 30 is a cylindrical silica gel column, and one end surface of the cylindrical silica gel column abuts against a corner of the positioning and mounting portion 21.
The second positioning slot 212 and the second protrusion 112 may be any suitable structures, in order to avoid over-positioning, the outer profile of the second protrusion 112 is smaller than the groove profile of the second positioning slot 212, and in order to ensure positioning reliability, it is preferable that the groove wall of the second positioning slot 212 includes a third positioning surface 212a, and the third positioning surface 212a is in surface contact with the second protrusion 112. For example, in a preferred embodiment, as shown in fig. 7, the second positioning slot 212 is a square slot, a slot wall of the square slot near its opening forms a third positioning surface 212a, the third positioning surface 212a is a slot wall of the square slot near the third slot side wall 11e, preferably, the third positioning surface 212a is parallel to the long side of the positioning and mounting portion 21, the second protrusion 112 is a square block fitted with the square slot, and the elastic member 30 is disposed on a side near the third positioning surface 212a, so that the third positioning surface 212a is pressed against the square block under the action of the elastic member 30.
Further, in order to improve the positioning accuracy, a positioning structure is provided in the accommodating groove 11 for positioning the elastic member 30, so that the position accuracy of the elastic member 30 can be ensured, thereby ensuring the accuracy of the angle, the size and the like of the force applied by the elastic member 30 on the DMD device 20, and further ensuring the positioning accuracy of the elastic member 30.
The positioning structure may be any structure capable of positioning the elastic member 30, such as a snap structure, a press block structure, etc., and in order to simplify the structure and ensure the positioning reliability of the elastic member, the positioning of the elastic member is realized by using a structure on the groove sidewall of the accommodating groove, as shown in fig. 5 and 6, the positioning structure includes a positioning groove 114a disposed on the groove sidewall of the accommodating groove 11, and a part of the structure of the elastic member 30 is snapped in the positioning groove 114 a. The positioning groove 114a may be formed by a groove sidewall recess of the receiving groove 11, or may be formed by a protrusion provided on a groove sidewall as shown in fig. 5 and 6. In a preferred embodiment, a first positioning protrusion 113a is disposed on the second groove sidewall 11b near the junction of the second and third groove sidewalls, the protrusion direction of the first positioning protrusion 113a is parallel to the third groove sidewall 11e, referring to fig. 1 and 2, a groove 113d is disposed on the third groove sidewall 11e near the junction, the concave direction of the groove 113d is away from the DMD device 20, a second positioning protrusion 113b is disposed on the bottom wall of the groove 113d, the convex direction of the second positioning protrusion 113b is perpendicular to the third groove sidewall 11e, and thus, a positioning groove 114a for positioning the elastic member 30 is formed between the first positioning projection 113a and the second positioning projection 113b, and because the protruding directions of the first positioning protrusion 113a and the second positioning protrusion 113b form a certain included angle with the force application direction of the elastic member 30, the positioning reliability of the elastic member 30 is further improved.
Further preferably, a step structure 113c is disposed on the bottom wall 11c of the receiving groove 11, and the step structure 113c abuts against the end surface of the cylindrical elastic member 30, so that on one hand, the positioning reliability of the elastic member 30 can be further improved, and on the other hand, the elastic member 30 can be effectively prevented from being taken out when the DMD device 20 is frequently disassembled during position adjustment. For convenience of arrangement, preferably, the stepped structure 113c is formed by recessing a part of the bottom wall 11c of the receiving groove 11, and the edge of the stepped structure 113c is approximately flush with the edge of the DMD device 20 at the position where the stepped structure is located, so that the force application position of the stepped structure 113c with the end surface of the elastic member 30 and the force application position of the elastic member 30 to the DMD device 20 are in one inner and outer direction, thereby further ensuring the positioning reliability of the elastic member 30 and optimizing the force application of the DMD device 20.
In an alternative embodiment, the elastic member 30 is provided with a plurality of elastic members, a portion of the elastic member 30 presses against a long side of the positioning and mounting portion 21, and another portion of the elastic member 30 presses against a second short side 21b of the positioning and mounting portion 21, so that the pressing of the first positioning surface 211a, the second positioning surface 211b and the cylindrical surface and the pressing of a portion of the groove wall of the second positioning groove 212 and the second protrusion 112 are realized by a first directional force applied to the DMD device 20 by a portion of the elastic member 30 and a second directional force applied to the DMD device 20 by another portion of the elastic member. The elastic member 30 may be a square block of silicone. Since the elastic member 30 acts on the long side and the short side of the positioning and mounting portion 21, the requirement for the positional accuracy is not high, and therefore, in this embodiment, the positioning structure for the elastic member 30 may not be provided.
In this embodiment, a portion of the elastic element 30 can be pressed against any long side of the positioning and mounting portion 21, preferably, the second positioning slot 212 is configured as a square slot, the second protrusion 112 is configured as a square block, and two slot walls of the square slot close to the opening thereof are both positioning surfaces, so that the portion of the elastic element 30 can be pressed against any long side of the two long sides of the positioning and mounting portion 21 as required.
In order to have a sufficient space for expansion after the elastic member 30 is compressed, it is preferable that a clearance space is provided in both the long side extending direction and the short side extending direction of the positioning and mounting portion 21.
In a further preferred embodiment, as shown in fig. 5 and 6, the accommodating groove 11 is provided with a plurality of grooves, one of which is a positioning groove 114a for positioning the elastic member 30 at the corner, and the other grooves 114b and 114c are used for avoiding the deformation of the elastic member 30 at the side, so that an operator can flexibly select different positioning modes to position the DMD device 20 according to actual needs, thereby improving the versatility of the positioning and mounting structure. Specifically, for convenience of description, the elastic member 30 disposed at the corner is referred to as a first elastic member, the elastic member 30 disposed at the second groove sidewall 11b is referred to as a second elastic member, the elastic member 30 disposed at the third groove sidewall 11e is referred to as a third elastic member, as shown in fig. 5 and 6, a first positioning protrusion 113a is disposed at a position of the second groove sidewall 11b near a junction of the second and third groove sidewalls, a protrusion direction of the first positioning protrusion 113a is parallel to the third groove sidewall 11e, a groove 113d is disposed at a position of the third groove sidewall 11e near the junction, a depression direction of the groove 113d is a direction away from the DMD device 20, a second positioning protrusion 113b is protrudingly disposed on a bottom wall of the groove 113d, a protrusion direction of the second positioning protrusion 113b is perpendicular to the third groove sidewall 11e, and thus, a positioning groove 114a for positioning the first elastic member is formed between the first positioning protrusion 113a and the second positioning protrusion 113b, the first positioning protrusion 113a may also be configured to support a second elastic member, a groove 114b for avoiding deformation of the second elastic member is formed between the first positioning protrusion 113a and the second protrusion 112, a third positioning protrusion 113e spaced from the second positioning protrusion 113b is further protrudingly disposed on a bottom wall of the groove 113d, the second positioning protrusion 113b and the third positioning protrusion 113e are configured to support a third elastic member, two grooves 114c for avoiding deformation of the third elastic member are formed between the second positioning protrusion 113b and the third positioning protrusion 113e, and two grooves 114c for avoiding deformation of the third elastic member are formed between the third positioning protrusion 113e and a side wall of the groove 113 d. So, operating personnel can select to set up only first elastic component according to the demand, still select second elastic component and third elastic component cooperation, have improved the commonality of this structure greatly, in addition, through the sharing structure that sets up each constant head tank, have simplified the structure greatly to be favorable to manufacturing, reduction in production cost.
Of course, it is understood that only the positioning groove for receiving the corner elastic member 30, such as the positioning groove 114a, or only the protrusion for supporting the elastic member 30 disposed at the long side and the short side, may be disposed in the receiving groove.
Further preferably, the positioning and mounting structure further includes a spacer 40, the spacer 40 is disposed between the bottom wall 11c of the receiving groove 11 and the positioning and mounting portion 21 and located at least one of four corners of the positioning and mounting portion 21, and the spacer 40 can adjust a mounting angle of the DMD device 20 to compensate for a height of the DMD device 20, so as to compensate for a size deficiency of the housing caused by a size tolerance during manufacturing. The spacer 40 may be disposed at one corner or several corners of the positioning and mounting portion 21, and the number of the spacers 40 at one corner may be one or several. Preferably, in the embodiment shown in fig. 3 and 4, the spacer 40 is selectively placed at a triangular position other than a corner where the first elastic member is disposed.
Further preferably, a positioning groove may be provided to position the spacer 40, so as to avoid affecting the position of the spacer 40 when the DMD device 20 is installed, improve the assembly efficiency, and ensure the assembly accuracy. For example, in the embodiment shown in fig. 5 and 6, a positioning groove 114e for positioning the gasket 40 is concavely formed in one side of the third groove side wall 11e adjacent to the first groove side wall 11a, and a positioning groove 114d for positioning the gasket 40 is concavely formed in both ends of the fourth groove side wall 11f (i.e., one end adjacent to the first groove side wall 11a and one end adjacent to the second groove side wall 11 b), respectively.
Further preferably, in the thickness direction of the positioning and mounting portion 21, the size of the positioning and mounting portion 21 is larger than the sizes of the first bump 111 and the second bump 112, so that when the DMD device 20 is angularly adjusted by the spacer 40, the first bump 111 and the second bump 112 interfere with the movement of the positioning and mounting portion 21 to cause adjustment failure, and the mounting accuracy of the DMD device 20 is further ensured.
The application also provides an electronic device, which comprises a housing 10 and a DMD device 20, and further comprises the above-mentioned DMD device positioning and mounting structure, wherein the DMD device 20 is mounted on the housing 10 through the positioning and mounting structure. The electronic device may be any device that requires optical imaging using a DMD device, for example, the electronic device may be a projection, a 3D printer, or the like.
In the embodiment shown in fig. 8 and 9, the electronic device is a projector, the housing 10 is an optical-mechanical housing of the projector, the optical-mechanical housing is provided with a receiving slot 11, and the DMD device 20 is disposed in the receiving slot 11 and is reliably and accurately positioned and mounted in the receiving slot 11 by the positioning and mounting structure disposed in the receiving slot 11. The accurate installation of the DMD device 20 can be ensured by arranging the positioning and mounting structure, and then the reliable contact of the connector 80, the circuit board 70 and the DMD device 20 is ensured, so that the projection effect of the projector is ensured.
Further, referring to fig. 1 to 6, a first positioning post 115 is disposed on the first bump 111, a second positioning post 116 is disposed on the second bump 112, the first positioning post 115 is cylindrical, a cross section of the second positioning post 116 is long-waist-shaped, and is used for positioning the connector 80 of the DMD device 20, correspondingly, referring to fig. 9, a first positioning hole is disposed at a position on the connector 80 corresponding to the first positioning post 115, a second positioning hole is disposed at a position corresponding to the second positioning post 116, the first positioning hole is a circular hole adapted to the first positioning post 115, the second positioning hole is a waist-shaped hole adapted to the second positioning post 116, and a dimension of a cross section of the waist-shaped hole in an extending direction is greater than a dimension of a cross section of the second positioning post 116, so as to avoid that the connector 80 cannot be mounted due to a machining error.
Further, referring to fig. 9, the projector generally includes a heat dissipation structure 60, a base 50, a circuit board 70, a connector 80, and a DMD device 20 from outside to inside, an elastic sheet (not shown) is disposed inside the base 50, the base 50 is fixed to the housing 10, the elastic sheet presses the circuit board 70, the connector 80, and the DMD device 20, a heat conduction portion 61 is disposed in the middle of the heat dissipation structure 60, and the heat conduction portion 61 passes through the base 50, the elastic sheet, the circuit board 70, and the connector 80 to contact the DMD device 20, so as to dissipate heat of the DMD device 20.
It will be appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.
Claims (12)
1. A positioning and mounting structure of a DMD device is used for positioning and mounting the DMD device on a shell of electronic equipment and is characterized in that the DMD device comprises a positioning and mounting part which is of a rectangular plate structure approximately, the positioning and mounting part comprises a first short side and a second short side, a first positioning groove is formed in the first short side, the groove wall of the first positioning groove comprises a first positioning surface and a second positioning surface which are arranged at a preset included angle, and a second positioning groove is formed in the second short side;
the positioning and mounting structure comprises a containing groove arranged on the shell and an elastic piece arranged in the containing groove, a positioning structure used for positioning the elastic piece is arranged in the containing groove, the containing groove is used for containing the DMD device, the groove side wall of the containing groove comprises a first groove side wall and a second groove side wall which are oppositely arranged, a first lug used for being matched with the first positioning groove is arranged on the first groove side wall, a second lug used for being matched with the second positioning groove is arranged on the second groove side wall, at least part of the side wall of the first lug is a cylindrical surface, the cylindrical surface is used for being respectively matched with a first positioning surface and a second positioning surface of the first positioning groove, the elastic piece is arranged between the groove side wall of the containing groove and the positioning and mounting part and used for tightly pressing the first positioning surface and the second positioning surface on the cylindrical surface, pressing part of groove wall of the second positioning groove on the second bump; the cylindrical surfaces comprise a first cylindrical surface which is in line contact fit with the first positioning surface and a second cylindrical surface which is in line contact fit with the second positioning surface.
2. The positioning and mounting structure for a DMD device according to claim 1, wherein the elastic member is pressed against a corner portion on the side of the second short side of the positioning and mounting portion.
3. The structure of claim 2, wherein the second positioning groove is a square groove, a groove wall of the square groove near the opening of the square groove forms a third positioning surface, the second protrusion is a square block fitted with the square groove, and the elastic member is disposed on a side near the third positioning surface to press the third positioning surface against the square block.
4. The structure of claim 2, wherein the elastic member is a cylindrical silica gel column, and one end surface of the cylindrical silica gel column abuts against a corner of the positioning and mounting portion.
5. The structure of claim 1, wherein the elastic member is provided in plural, and a part of the elastic member is pressed against a long side of the positioning and mounting portion, and another part of the elastic member is pressed against a second short side of the positioning and mounting portion.
6. A positioning and mounting structure for a DMD device according to claim 1, wherein the positioning structure comprises a positioning groove provided on a groove side wall of the accommodation groove.
7. The positional mounting structure of a DMD device according to claim 6, further comprising a step structure provided on a bottom wall of the receiving groove.
8. A positionally fixed mounting structure for a DMD device according to any one of claims 1 to 7, wherein the first cylindrical surface and the second cylindrical surface are connected by a plane, the first cylindrical surface and the second cylindrical surface being of equal diameter and having coincident axes.
9. The structure of any one of claims 1 to 5, further comprising a spacer disposed between the bottom wall of the receiving groove and the positioning and mounting portion and located at least one of four corners of the positioning and mounting portion.
10. The structure according to claim 9, wherein the positioning and mounting portion has a size larger than the first and second bumps in a thickness direction of the positioning and mounting portion.
11. An electronic device comprising a housing and a DMD device, characterized by further comprising a positioning and mounting structure of the DMD device according to any one of claims 1 to 10, the DMD device being mounted to the housing by the positioning and mounting structure.
12. The electronic device of claim 11, wherein the electronic device is a projector or a 3D printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010833172.2A CN112437577B (en) | 2020-08-18 | 2020-08-18 | Positioning and mounting structure of DMD device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010833172.2A CN112437577B (en) | 2020-08-18 | 2020-08-18 | Positioning and mounting structure of DMD device and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112437577A CN112437577A (en) | 2021-03-02 |
| CN112437577B true CN112437577B (en) | 2022-04-01 |
Family
ID=74689619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010833172.2A Active CN112437577B (en) | 2020-08-18 | 2020-08-18 | Positioning and mounting structure of DMD device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112437577B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114967297B (en) * | 2022-04-29 | 2024-06-11 | 歌尔光学科技有限公司 | Optical module and assembly method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200612177A (en) * | 2004-10-08 | 2006-04-16 | Premier Image Technology Corp | An optical engine and an image projector having the optical engine |
| CN103196085A (en) * | 2013-04-24 | 2013-07-10 | 友达光电（苏州）有限公司 | Backlight module |
| CN104423505A (en) * | 2013-08-29 | 2015-03-18 | 鸿富锦精密工业（深圳）有限公司 | Cooling fin with positioning function and electronic device with cooling fin |
| CN205746145U (en) * | 2016-07-05 | 2016-11-30 | 周翔 | A kind of LED |
| CN106569376A (en) * | 2016-10-31 | 2017-04-19 | 海信集团有限公司 | DMD component, DLP light machine and DLP projection device |
| CN208387051U (en) * | 2018-02-02 | 2019-01-15 | 东莞瑞苏电子有限公司 | A kind of titanium alloy Wave soldering fixture |
| CN209514174U (en) * | 2018-12-11 | 2019-10-18 | 中强光电股份有限公司 | Optical element adjusting apparatus and electronic device |
| CN209692587U (en) * | 2019-03-06 | 2019-11-26 | 深圳欣锐科技股份有限公司 | Power source converter housing and power adapter |
| CN210924165U (en) * | 2018-12-28 | 2020-07-03 | 深圳光峰科技股份有限公司 | DMD device fixing device |
| CN111385549A (en) * | 2018-12-28 | 2020-07-07 | 深圳光峰科技股份有限公司 | Adjusting device of spatial light modulator and projection device thereof |
| CN213028920U (en) * | 2020-08-18 | 2021-04-20 | 深圳市安华光电技术有限公司 | Positioning and mounting structure and electronic equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6301417B1 (en) * | 1998-08-31 | 2001-10-09 | Brookhaven Science Associates | Ultrathin optical panel and a method of making an ultrathin optical panel |
| CN102123570B (en) * | 2010-01-09 | 2013-02-13 | 鸿富锦精密工业（深圳）有限公司 | Electronic device |
| TWI660660B (en) * | 2015-02-11 | 2019-05-21 | 佳能企業股份有限公司 | Connecting module and system using the same |
| CN105904856B (en) * | 2016-04-19 | 2019-02-12 | 重庆品胜科技有限公司 | A kind of printer |
| CN207096889U (en) * | 2017-06-23 | 2018-03-13 | 硕诺科技（深圳）有限公司 | A kind of fixed structure for connecting electronic product casing and covering thereon |
| CN110716036B (en) * | 2019-10-23 | 2022-10-28 | 上海芯像生物科技有限公司 | Biochemical reaction chip and clamp thereof |
-
2020
- 2020-08-18 CN CN202010833172.2A patent/CN112437577B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200612177A (en) * | 2004-10-08 | 2006-04-16 | Premier Image Technology Corp | An optical engine and an image projector having the optical engine |
| CN103196085A (en) * | 2013-04-24 | 2013-07-10 | 友达光电（苏州）有限公司 | Backlight module |
| CN104423505A (en) * | 2013-08-29 | 2015-03-18 | 鸿富锦精密工业（深圳）有限公司 | Cooling fin with positioning function and electronic device with cooling fin |
| CN205746145U (en) * | 2016-07-05 | 2016-11-30 | 周翔 | A kind of LED |
| CN106569376A (en) * | 2016-10-31 | 2017-04-19 | 海信集团有限公司 | DMD component, DLP light machine and DLP projection device |
| CN208387051U (en) * | 2018-02-02 | 2019-01-15 | 东莞瑞苏电子有限公司 | A kind of titanium alloy Wave soldering fixture |
| CN209514174U (en) * | 2018-12-11 | 2019-10-18 | 中强光电股份有限公司 | Optical element adjusting apparatus and electronic device |
| CN210924165U (en) * | 2018-12-28 | 2020-07-03 | 深圳光峰科技股份有限公司 | DMD device fixing device |
| CN111385549A (en) * | 2018-12-28 | 2020-07-07 | 深圳光峰科技股份有限公司 | Adjusting device of spatial light modulator and projection device thereof |
| CN209692587U (en) * | 2019-03-06 | 2019-11-26 | 深圳欣锐科技股份有限公司 | Power source converter housing and power adapter |
| CN213028920U (en) * | 2020-08-18 | 2021-04-20 | 深圳市安华光电技术有限公司 | Positioning and mounting structure and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112437577A (en) | 2021-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112437577B (en) | Positioning and mounting structure of DMD device and electronic equipment | |
| CN113917769B (en) | Projection ray apparatus and projection equipment | |
| CN112433423B (en) | DMD assembly and projection optical machine | |
| CN213028920U (en) | Positioning and mounting structure and electronic equipment | |
| CN213028673U (en) | DMD component and electronic equipment | |
| CN111679396A (en) | Fixing structure of digital micro-mirror element in projector and projector | |
| CN106647121A (en) | DMD module, DLP machine and DLP projection device | |
| CN113075841B (en) | Optical machine and projector | |
| CN111385549A (en) | Adjusting device of spatial light modulator and projection device thereof | |
| EP1840453A1 (en) | Light source unit mounting structure | |
| CN219065974U (en) | Projection ray apparatus and projection equipment | |
| CN112436305B (en) | DMD component of electronic equipment and electronic equipment | |
| CN112839424A (en) | DMD packaging structure mounting assembly and electronic equipment | |
| JP6192503B2 (en) | Lens drive device | |
| CN212723642U (en) | Laser projection device | |
| CN212694231U (en) | DMD assembly and projection optical machine | |
| CN214375761U (en) | DMD subassembly, ray apparatus, projecting apparatus and 3D printer | |
| CN212623270U (en) | Lens adjustable mounting base and projector | |
| CN211531411U (en) | DMD packaging structure mounting assembly and electronic equipment | |
| JP6310238B2 (en) | Lens drive device | |
| CN221301149U (en) | DMD mounting and positioning structure, DMD positioning system and projection car lamp | |
| CN213338297U (en) | DMD assembly and projection optical machine | |
| CN217957210U (en) | Optical machine assembly and projector | |
| CN112433424A (en) | Projector and optical machine thereof | |
| CN216291137U (en) | Lens supporting structure, camera module and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518067 3C, 3D, Block CD, Building 7, Xinghua Industrial Building, No. 4, Industrial 6th Road, Huaguoshan Community, Merchants Street, Nanshan District, Shenzhen, Guangdong Province Patentee after: Shenzhen Anhua Photoelectric Technology Co.,Ltd. Address before: 518000 room 201-202, building D, Chuangye No.1, 43 Yanshan Road, Shekou, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ANHUA OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |