CN219533593U

CN219533593U - DMD assembly mounting structure

Info

Publication number: CN219533593U
Application number: CN202223297120.1U
Authority: CN
Inventors: 郑健; 张坤; 蒋文杰; 向令
Original assignee: Yibin Jimi Photoelectric Co Ltd
Current assignee: Yibin Jimi Photoelectric Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-08-15
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a DMD assembly mounting structure, which comprises a shell for bearing a DMD assembly, wherein a press cover assembly is arranged on the shell and comprises a pressing plate, a pressing piece and a pressure member, a driving plate is arranged between the pressing piece and the DMD assembly, the pressure member is connected with the shell to apply a pressing force to the pressing plate, a spring piece is arranged on the pressing plate and elastically abuts against the pressing piece to press the DMD assembly on the shell through the pressing piece and the driving plate. According to the DMD component mounting structure, the elastic sheets are arranged on the pressing plate to elastically press the driving plate and the DMD component on the shell, so that the pressing stability is guaranteed, the damage caused by overlarge pressure on the driving plate and the DMD component is avoided, the pressing degree of the DMD component can be adjusted by adjusting the acting force of the pressure component on the pressing plate, the bending moment born by the pressing plate is absorbed by the elastic sheets, the bending deformation of the driving plate can be effectively avoided, and the stability of the DMD component is guaranteed.

Description

DMD assembly mounting structure

Technical Field

The utility model relates to the technical field of digital optical processing devices, in particular to a DMD assembly mounting structure.

Background

The DMD component is an array formed by reflecting light of a plurality of high-speed digital light, and concretely comprises a plurality of micro aluminum reflector units, each reflector unit corresponds to a pixel and is a core device of the DLP projection system, and compared with a liquid crystal panel adopted by the LCD projection system, the DMD component has the advantages of low transmissivity, small contrast, high reflectivity, large contrast and better projection effect. The existing DMD component mounting structure is characterized in that a driving plate is directly connected with a shell through a locking screw, the DMD component is pressed on the shell through the driving plate, and the driving plate is electrically connected with the DMD component through pressing, but the acting force of the locking screw is concentrated in the part of the driving plate in the existing mounting structure, so that the driving plate is deformed due to the fact that the driving plate bears bending moment, and the contact between the driving plate and the DMD component is uneven, so that the stability of the DMD component is affected.

Disclosure of Invention

The utility model aims to solve the technical problems and the technical task of improving the prior art, provides a DMD component mounting structure, and solves the problems that the conventional DMD component mounting structure in the prior art easily causes a driving plate to bear bending moment to influence the contact sufficiency between the driving plate and the DMD component and influence the stability of the DMD component.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the utility model provides a DMD subassembly mounting structure, includes the casing that is used for bearing the weight of the DMD subassembly, be provided with the press cover subassembly on the casing, the press cover subassembly includes clamp plate, casting die and pressure component, set up the drive plate between casting die and the DMD subassembly, pressure component is connected with the casing in order to exert the compressive force to the clamp plate, be provided with the shell fragment on the clamp plate, shell fragment elasticity butt is in order to pass through the casting die with the drive plate will the DMD subassembly compresses tightly on the casing. According to the DMD component mounting structure disclosed by the utility model, the pressing force is applied to the pressing plate by the pressure component, and the elastic piece is arranged on the pressing plate, so that the acting force applied to the pressing piece is elastic, the elastic piece can be subjected to self-adaptive elastic deformation, the uniformity of the pressing acting force is ensured, the driving plate and the DMD component can be effectively pressed on the shell, the damage to the driving plate or the DMD component caused by overlarge local pressure is avoided, the pressing plate can bear bending moment to deform under the action of the pressure component, and the elastic piece is positioned between the pressing plate and the pressing piece and compensates the deformation of the pressing plate through the elastic deformation of the elastic piece, so that the driving plate is prevented from bearing the bending moment, and the stability of the DMD component is effectively ensured.

Furthermore, the elastic sheet and the pressing plate are of an integrated structure, so that the structure stability is good, and the elastic sheet can stably and accurately apply elastic acting force.

Further, the pressing plate is provided with an opening, the elastic sheet is processed by flanging the edge of the opening, the structure is simple, the processing is easy, and the cost is low.

Further, the elastic sheets are provided with a plurality of elastic acting forces, so that the elastic acting forces can be applied in multiple points, the acting forces are ensured to be uniformly distributed, and deformation or warping and the like caused by overlarge local pressure are avoided.

Further, the elastic pieces are symmetrically distributed on two opposite sides of the center of the driving plate, or the elastic pieces are uniformly distributed around the circumference of the center of the driving plate, so that the pressure applied to the driving plate is ensured to be symmetrically or circumferentially uniformly distributed around the center of the driving plate, the driving plate can be more uniformly and stably pressed, deformation of the driving plate caused by local overlarge pressure or pressure bias is avoided, and the driving plate is prevented from bearing bending moment.

Further, the clamp plate is elastic member or inelastic member, the clamp plate is the rigid member, because be provided with the shell fragment under the clamp plate in order to exert elasticity clamp force to the clamp plate, the clamp plate is elastic member or inelastic member can both ensure to exert the pressure on the clamp plate and be elastic force, the clamp plate then preferably is the rigid member, and structural stability is good, can with the stable butt of driving plate to ensure to exert stable effort to the driving plate, and then the stable clamp fixing with driving plate and DMD subassembly.

Further, the pressure member is connected to the shell in an adjustable way, and the pressure applied by the pressure member is adjusted, so that the elastic acting force generated by the pressing plate to the pressing piece through the elastic piece is controlled, the clamping degree of the driving plate and the DMD component is controlled, different requirements are met, and the flexible applicability is good.

Furthermore, the pressure member is a screw in threaded connection with the shell, and the pressure member is simple in structure, easy to implement and convenient to adjust.

Further, be provided with the spliced pole on the casing, the screw spiro union is on the spliced pole, have the interval between clamp plate and the spliced pole top surface, the clamp plate is not with the casing contact, the compression effort that acts on drive plate and DMD subassembly changes along with the screw to the pressure of clamp plate to ensure that adjusting screw is to the pressure of clamp plate that is to say adjusting the compression effort of applying on drive plate and DMD subassembly, realize compressing tightly degree nimble adjustable, both ensured stable fixed drive plate and DMD subassembly of compressing tightly, also avoid drive plate and DMD subassembly to receive too big pressure and damage.

Further, the pressure component distributes along the circumference of clamp plate has a plurality of, and the pressure that the guarantee clamp plate received evenly distributed in whole circumference avoids clamp plate local atress to produce too big bending deformation, avoids the moment of flexure to lead to the bending deformation of drive plate on the drive plate, effectively ensures the stability of DMD subassembly.

Further, the pressing plate and the elastic plate are made of the same material or different materials, the pressing plate is generally of a rigid body structure, bending deformation is reduced, the elastic plate is flexibly selected according to requirements, the elastic plate and the pressing plate can be made of the same material, elasticity is achieved through the structure of the designed elastic plate, the elastic plate can also be made of different materials with the pressing plate, and the elastic plate is guaranteed to have better elasticity to meet requirements.

Compared with the prior art, the utility model has the advantages that:

according to the DMD component mounting structure, the elastic sheets are arranged on the pressing plate to elastically press the driving plate and the DMD component on the shell, so that the pressing stability is guaranteed, the damage caused by overlarge pressure on the driving plate and the DMD component is avoided, the pressing degree of the DMD component can be adjusted by adjusting the acting force of the pressure component on the pressing plate, the bending moment born by the pressing plate is absorbed by the elastic sheets, the bending deformation of the driving plate can be effectively avoided, and the stability of the DMD component is guaranteed.

Drawings

Fig. 1 is a schematic structural view of a DMD assembly mounting structure of the present utility model.

In the figure:

the DMD device comprises a shell 1, a DMD assembly 2, a driving plate 3, a pressing piece 4, a spring piece 5, a pressing plate 6, a screw 7 and a connecting column 8.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The DMD component mounting structure disclosed by the embodiment of the utility model can prevent the driving plate from being deformed due to bearing bending moment, ensure full and uniform contact between the driving plate and the DMD component and ensure the stability of the DMD component.

As shown in fig. 1, a DMD component mounting structure mainly includes a housing 1 for carrying a DMD component 2, a pressing component is disposed on the housing 1, the pressing component includes a pressing plate 6, a pressing piece 4 and a pressure member, a driving plate 3 is disposed between the pressing piece 4 and the DMD component 2, the pressure member is connected with the housing 1 to apply a pressing force to the pressing plate 6, a spring piece 5 is disposed on the pressing plate 6, the spring piece 5 elastically abuts against the pressing piece 4 to press the DMD component 2 on the housing 1 through the pressing piece 4 and the driving plate 3, the pressing plate 6 is not abutted against the housing 1, specifically, the pressing plate 6 is not directly contacted with the housing 1, the pressing component applies a pressing force to the pressing plate 6, the housing 1 does not generate a supporting force opposite to the pressing force direction, the pressing plate 6 is only abutted against the pressing piece 4 by the pressing piece 5, other parts of the lower surface of the pressing plate 6 are in a suspension state, therefore, the pressing force of the pressing piece 6 by the pressure member is elastically abutted against the pressing piece 4, the pressing force of the pressing piece 4 can be not only generated by the pressing piece 4, the pressing force can be further applied to the pressing piece 3 by the pressing piece 3, and the DMD component can be further changed, the pressing force can be further applied to the DMD component 3 is prevented from being damaged, and the pressing component 2 is further can be stably pressed by the pressing component 3, and the pressing component can be further can be changed, and the pressing component 2 can be stably, and the pressing component can be prevented from being deformed.

In this embodiment, the elastic sheet 5 and the pressing plate 6 are of an integral structure, that is, the elastic sheet 5 is formed by processing a part of the pressing plate 6, specifically, an opening is formed in a middle area of the pressing plate 6, edges of the opening are turned to manufacture the elastic sheet 5, the structure is simple and compact, the processing is easy, the cost is low, in order to ensure uniformity of elastic force acting on the pressing member 4 by the elastic sheet 5, the elastic sheet 5 is provided with a plurality of elastic acting forces, so that the pressing member 4 can apply uniform and stable pressing acting force to the driving plate 3, preferably, the center of the pressing member 4 coincides with the center of the driving plate 3, so that acting force of the pressing member 4 to the driving plate 3 is uniformly distributed around the center of the driving plate 3, bending deformation of the driving plate 3 is effectively avoided, the elastic sheet 5 is symmetrically distributed on two opposite sides of the center of the driving plate 3, in other words, the elastic sheet 5 is symmetrically distributed on two opposite sides of the center of the pressing member 4, or the elastic sheet 5 is uniformly distributed around the center of the pressing member 4, so that the pressing member 4 uniformly distributes the elastic force uniformly around the center of the pressing member 4, and the pressing member 4 uniformly distributes uniformly, so that stable pressing force is ensured.

The spring 5 is formed by processing a part of the pressing plate 6, that is, the spring 5 and the pressing plate 6 are made of the same material, in order to avoid the bending moment of the driving plate 3 from being born by the pressing plate 6 as much as possible, the pressing plate 6 can be made of rigid materials, the spring 5 is made of materials of the pressing plate 6, the elasticity of the spring 5 is poor, the spring 5 can be made of materials different from the pressing plate 6, then the spring is mounted on the pressing plate 6, and the connection stability can be ensured by adopting the modes of welding, riveting and the like, so that the pressing plate 6 is ensured to have good rigidity, the spring 5 is ensured to have good elasticity, the bending moment of the pressing plate 6 can be better absorbed by the spring 5, the bending moment of the driving plate 3 is avoided, and the stability of the DMD component 2 is ensured.

The pressing piece 4 is arranged between the pressing piece 6 and the driving plate 3, the pressing piece 4 can absorb bending moment to avoid the bending moment of the circuit board, the pressing piece 4 can preferably adopt a rigid piece, so that the abutting part of the pressing piece 4 and the driving plate 3 is accurate and stable, the acting force of the pressing piece 4 on the driving plate 3 is stable, the driving plate 3 and the DMD assembly 2 can be better clamped and fixed, the pressing piece 6 can be an elastic piece or an inelastic piece on the basis that the pressing piece 4 is a rigid piece, as long as the pressing piece 6 acts on the pressing piece 4 through the elastic pressing force of the elastic piece 5, the pressing piece 4 serving as the rigid piece can avoid the bending moment of the circuit board, and the driving plate 3 and the DMD assembly 2 can be stably clamped and fixed.

The pressure member is adjustable and connects on casing 1, adjusts the pressure member and comes to adjust the pressure of applying clamp plate 6 to enable shell fragment 5 to produce the deformation of different degree, and then adjust shell fragment 5 and act on the elasticity clamp force of casting die 4, finally realize adjusting the effort that compresses tightly drive plate 3 and DMD subassembly 2 elasticity, when guaranteeing to compress tightly drive plate 3 and DMD subassembly 2 stability, avoid effort too big and lead to drive plate 3 and DMD subassembly 2 impaired, in this embodiment, the pressure member is the screw 7 with casing 1 spiro union, simple structure, easily implement, with low costs, can adjust the clamp force of screw 7 to clamp plate 6 through screwing in screw 7, and then adjust the degree of compressing tightly drive plate 3 and DMD subassembly 2, further, be provided with spliced pole 8 on casing 1, the screw spiro union is on spliced pole 8, have the interval between clamp plate 6 and the spliced pole 8 top surface, just is that clamp plate 6 does not contact with the casing, can adjust the deformation volume of 5 in order to adjust drive plate 3 and DMD subassembly 2 to applyed clamp plate 6 and the clamp plate 6 and can's elasticity clamp plate 6 and can't change the degree of compressing tightly the clamp plate 6 and can't realize the degree of compressing tightly clamp plate 1 and can't change the clamp plate 6 and can't realize the degree of compressing tightly down on the clamp plate 1 if this type of clamp plate is the clamp plate is down on the top surface is down adjusted down.

A plurality of connecting holes are formed at intervals along the circumferential edge of the pressing plate 6, a screw 7 which is in threaded connection with a connecting column 8 on the shell 1 is arranged in each connecting hole, the pressing plate 6 is guaranteed to be subjected to even pressing force, the pressing plate 6 is prevented from generating deflection and bending deformation due to overlarge local acting force, and the driving plate 3 and the DMD component 2 are guaranteed to be clamped and fixed evenly and stably.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the utility model, and the scope of the utility model should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims

1. The utility model provides a DMD subassembly mounting structure, its characterized in that, including casing (1) that is used for bearing DMD subassembly (2), be provided with the press cover subassembly on casing (1), the press cover subassembly includes clamp plate (6), casting die (4) and pressure component, set up drive plate (3) between casting die (4) and DMD subassembly (2), pressure component is connected with casing (1) in order to apply the compaction effort to clamp plate (6), be provided with shell fragment (5) on clamp plate (6), clamp plate (6) and casing (1) non-butt, clamp plate (6) only pass through shell fragment (5) butt on casting die (4), and then pass through casting die (4) with drive plate (3) will DMD subassembly (2) compress tightly on casing (1).

2. DMD assembly mounting structure according to claim 1, characterized in that the spring plate (5) and the pressure plate (6) are of one-piece construction.

3. DMD assembly mounting according to claim 2, characterized in that the pressure plate (6) is provided with an opening, the edge of which is turned up to form the dome (5).

4. DMD assembly mounting structure according to claim 1, characterized in that the spring plates (5) are provided in several numbers.

5. DMD assembly mounting structure according to claim 1, characterized in that the shrapnel (5) are symmetrically distributed on both opposite sides of the centre of the drive plate (3) or that the shrapnel (5) are evenly distributed around the circumference of the centre of the drive plate (3).

6. DMD assembly mounting structure according to any one of claims 1 to 5, characterized in that the pressure plate (6) is an elastic or inelastic member and the pressure member (4) is a rigid member.

7. DMD assembly mounting according to any one of claims 1 to 5, characterized in that the pressure member is adjustably connected to the housing (1).

8. DMD assembly mounting structure according to claim 7, characterized in that the pressure member is a screw (7) screwed to the housing (1).

9. DMD assembly mounting structure according to claim 8, characterized in that the housing (1) is provided with a connecting post (8), the screw (7) is screwed onto the connecting post (8), and a space is provided between the pressure plate (6) and the top surface of the connecting post (8).

10. DMD assembly mounting structure according to any one of claims 1 to 5, characterized in that the pressure members are distributed in number along the circumference of the pressure plate (6).

11. DMD component mounting structure according to any one of claims 1 to 5, characterized in that the pressure plate (6) and the spring plate (5) are of the same material or of different materials.