Projection device

Abstract

The utility model discloses projection equipment, which comprises a light machine, a support, a flat cable and a first component, the light machine and the first component are respectively fixed on the support and are electrically connected through the flat cable, one side of the support, which is used for fixing the first component, protrudes to form a supporting table, and the first component is fixed on the supporting table. And a part of area of the flat cable is fixed on the supporting table. The projection equipment provided by the utility model can prevent the flat cable from being pulled and damaged by an interference structure on the shell when the flat cable is assembled into the shell of the projection equipment along with the ray machine and the bracket.

Description

Technical Field

[0001] The utility model relates to the technical field of projection equipment, in particular to a projection equipment. Background Art

[0002] With the advancement of projector technology, the internal structures of high-end projectors have become increasingly complex, resulting in limited space for component installation locations and complex wiring between components, which can easily cause structural interference. Projection optical engines typically require connections to circuit boards via flat cables. However, for projector optical engines with long flat cables, most of the cables are suspended in the air. During assembly with the projector housing, the cables can easily be pulled and damaged by protruding interfering structures such as ribs on the housing, causing the projection equipment to malfunction. Utility Model Content

[0003] In order to solve the above technical problems, the present invention provides a projection device, which can prevent the cable from being pulled and damaged by the interference structure on the housing when the cable is assembled into the housing of the projection device along with the optical engine and the bracket.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a projection device, comprising an optical engine, a bracket, a cable and a first component, wherein the optical engine and the first component are respectively fixed to the bracket, the optical engine and the first component are electrically connected via the cable, one side of the bracket on which the first component is fixed protrudes to form a support platform, and a partial area of ​​the cable is fixed to the support platform.

[0006] Preferably, the support platform is protrudingly formed at the first edge of the bracket.

[0007] Preferably, the optical engine and the first component are respectively located on opposite sides of the bracket, and a cable hole is opened on the bracket, and the cable passes through the cable hole. The cable hole is located in the direction of the support platform away from the first edge of the bracket.

[0008] Preferably, the projection device further comprises a housing, wherein a mounting cavity for fixing the bracket is provided in the housing, and in the direction in which the bracket is installed into the mounting cavity, an edge of the support platform protrudes from or is flush with an edge of the cable.

[0009] Preferably, a fixing column for fixing the cable is provided on the first component, and the top of the support platform is flush with the top of the fixing column.

[0010] Preferably, the side wall of the support platform forms an air guide port extending through the bracket to a side facing away from the support platform, and a heat sink is provided on the optical machine below the air guide port.

[0011] Preferably, there are multiple heat sinks, and the multiple heat sinks are spaced apart from each other, wherein the extension direction of each heat sink is toward the air guide port.

[0012] Preferably, the support platform is protrudingly formed at the first edge of the bracket, and the air guide port is opened on a side of the support platform close to the first edge of the bracket.

[0013] Preferably, the projection device further comprises a heat dissipation fan, which is fixed on the bracket and located on a side of the heat sink away from the air guide port.

[0014] Preferably, the projection device also includes a second component, which is fixed on the optical machine and electrically connected to the optical machine. One end of the cable is connected to the second component, and the second component is located between the cooling fan and the heat sink, and the top of the second component is lower than the top of the heat sink.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: in the projection device disclosed by the present invention, a support platform structure is formed by a protrusion on one side of the bracket on which the first component is fixed, so that the cable connecting the first component and the optomechanical device can be fixed on the support platform to prevent the cable from warping; at the same time, when the entire projection device is assembled, the support platform can also play a blocking role for the cable. When the support platform hits the interference structure in the outer shell, it can protect the cable and prevent the cable from being pulled and damaged by the interference structure when it is assembled with the optomechanical device.

[0016] In a further embodiment, the present invention also has the following beneficial effects:

[0017] (1) By forming a protrusion of the support platform at the first edge of the bracket, when the bracket is installed into the housing of the projection device, the worker can promptly detect the collision of the bracket structure near the wiring and then adjust the installation position of the bracket in time.

[0018] (2) The edge of the support platform protrudes or is flush with the edge of a portion of the cable fixed to the support platform, so that when the bracket is installed into the housing, if a collision occurs, the support platform is hit first, and the interference structure in the housing will not directly collide with the cable, further more comprehensively protecting the cable from being pulled and damaged.

[0019] (3) The top of the support platform is flush with the top of the fixing column on the first component for fixing the wiring, so that the wiring area from the support platform to the first component is flat.

[0020] (4) An air duct is formed at the bottom of the support platform, and a heat sink is provided on the optical machine at a position below the corresponding air duct to increase the channel for the heat dissipation airflow of the optical machine. Furthermore, a cooling fan is fixed on the side of the heat sink away from the air duct on the support to accelerate the flow of air from the heat sink and accelerate heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the internal structure of a projection device according to a preferred embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A magnified schematic diagram of point A in the middle;

[0023] Figure 3 yes Figure 1 A schematic diagram of the connection structure of the bracket, the first component and the cable of the projection device;

[0024] Figure 4 yes Figure 1 Schematic diagram of the connection structure between the optical machine and the second component of the projection equipment;

[0025] Figure 5 yes Figure 1 Schematic diagram of the connection structure of the optical engine, second component and cooling fan of the projection equipment.

[0026] Description of reference numerals:

[0027] 10. Optical engine; 11. Heat sink;

[0028] 20. Bracket; 21. Support platform; 211. Air guide port; 212. Wall; 22. First edge; 23. Cable hole;

[0029] 30. Cable arrangement;

[0030] 40. First component; 41. Fixed column;

[0031] 50. Cooling fan;

[0032] 60. Second component; 61. Cable interface. DETAILED DESCRIPTION

[0033] The following is a detailed description of the embodiments of the present invention. It should be emphasized that the following description is merely illustrative and is not intended to limit the scope and application of the present invention.

[0034] It is to be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be for fixing or for electrical / signal communication.

[0035] It is to be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate directions or positions based on the directions or positions shown in the drawings, and are merely used for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In addition, the terms "first", "second", "third", etc. are used only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can include one or more of the features explicitly or implicitly. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0037] As Figure 1 The preferred embodiment of the present application discloses a projection device, which comprises a light machine 10, a support 20, a wire 30 and a first component 40. The light machine 10 and the first component 40 are respectively fixed to the support 20, and the light machine 10 and the first component 40 are electrically connected through the wire 30. One side of the support 20, on which the first component 40 is fixed, protrudes to form a support table 21, and part of the wire 30 is fixed on the support table 21. Specifically, the top surface of the support table 21 can be a rectangular surface, and the wire can be fixed on the top surface of the support table 21 by common fixing methods such as bonding and clamping. The wire 30 electrically connected between the first component 40 and the light machine 10 can be fixed on the support table 21 to prevent the wire 30 from being raised by the excessive suspension of the wire 30. When the whole projection device is assembled, the support table 21 can also play a blocking role for the wire 30. When the support table 21 collides with the interference structure on the inner wall of the shell of the projection device, the wire 30 can be protected to prevent the wire 30 from being damaged by the interference structure during the assembly of the light machine. The interference structure is generally a rib, a threaded hole column or the like structure on the inner wall of the shell of the projection device.

[0038] As Figure 2As shown, in this embodiment, a support platform 21 is formed protruding from a first edge 22 of the bracket 20. When the bracket 20 is installed into the housing of the projection device, the edge of the bracket 20 often first contacts interfering structures within the housing. By forming the support platform 21 protruding from the first edge 22 of the bracket 20, workers can quickly detect any collisions with the bracket 20 structure near the cable 30 and adjust the installation position of the bracket 20 in a timely manner. The first edge 22 is located on the side of the bracket 20 facing the direction of installation into the projection device housing.

[0039] In one embodiment, the optical engine 10 and the first component 40 are located on opposite sides of the bracket 20. The bracket 20 is provided with a cable routing hole 23, through which the cable 30 passes. The cable routing hole 23 is located on the support platform 21, away from the first edge 22 of the bracket 20. Furthermore, the first component 40 is provided with a fixing post 41 for securing the cable 30. The top of the support platform 21 is flush with the top of the fixing post 41, ensuring a smooth area between the support platform 21 and the first component 40. One end of the cable 30 is secured to the second component 60. The cable 30 then passes through the cable routing hole 23 from the side of the bracket 20 facing away from the support platform 21 to the side of the support platform 21. After passing through the cable routing hole 23, the cable 30 is bent toward the support platform 21. The bent portion of the cable 30 is secured to the top of the support platform 21. The portion of the cable 30 at the top of the support platform 21 is bent toward the first component 40, then extends along the first component 40 and its end is ultimately secured to the first component 40.

[0040] In a further embodiment, the projection device further includes a housing (not shown), wherein a mounting cavity for securing the bracket 20 is provided within the housing. The optical engine 10 is secured to the bracket 20 and is installed into the mounting cavity of the housing along with the bracket 20. In the direction in which the bracket 20 is inserted into the mounting cavity, the edge of the support platform 21 protrudes from or is flush with the edge of the cable 30. This ensures that, when the bracket 20 is installed into the housing, if a collision occurs, the support platform 21 is impacted first, and the interfering structure does not directly collide with the cable 30, thereby more comprehensively protecting the cable 30 from being pulled and damaged. Specifically, when the support platform 21 is formed at the first edge 22 of the bracket 20, the area where the cable 30 is secured to the top of the support platform 21 is located within the first edge 22.

[0041] Combine Figure 3 and Figure 4, the side wall of the support platform 21 forms an air guide 211 that penetrates downward to the side of the bracket 20 away from the support platform 21, and a heat sink 11 is provided on the optical machine 10 below the air guide 211 to increase the channel for heat dissipation airflow. Among them, there are multiple heat sinks 11, and the multiple heat sinks 11 are arranged at intervals from each other, and the extension direction of each heat sink 11 is toward the air guide 211, so that the airflow passing through the air guide 211 can directly pass between the heat sinks 11 to more efficiently take away the heat on the heat sink 11. Among them, the air guide 211 is opened on the side of the support platform 21 close to the first edge 22 of the bracket 20. Further, combined with Figure 1 and Figure 5 As shown, the projection device further includes a cooling fan 50, which is fixed to the bracket 20 and located on the side of the heat sink 11 away from the air duct 211 to accelerate the flow of air from the heat sink 11 and speed up heat dissipation. The cooling fan 50 can absorb the airflow passing through the optical engine 10 and blow it out from the back. Specifically, the airflow enters from the front of the air duct 211, passes through the air duct 211, and then passes through the heat sink 11. Finally, it is extracted by the cooling fan 50 and blown out from the back of the cooling fan 50. Furthermore, in one embodiment, the air duct 211 is provided on the side wall of the support platform 21 facing the same direction as the lens of the optical engine 10.

[0042] In a specific embodiment, the rear side of the bottom of the support platform 21 opposite the air guide 211 is closed, forming a downwardly bent wall 212. In this way, when the cooling fan 50 absorbs the airflow from the optical machine 10, the airflow passing through the air guide 211 can be bent and flow downward to directly and efficiently pass through the heat sink 11 and be extracted by the cooling fan 50, thereby increasing the airflow speed and further improving the heat dissipation efficiency. In another embodiment, the rear side of the bottom of the support platform 21 opposite the air guide 211 can also be through-hole, that is, the air guide 211 not only penetrates from the side wall of the support platform 21 to the side of the bracket 20 facing away from the support platform 21, but also penetrates to the other side wall of the support platform 21, which helps to increase the air intake.

[0043] Combine Figure 4 and Figure 5 In some embodiments, the projection device further includes a second component 60, which is fixed to the optical engine 10 and electrically connected to the optical engine 10. One end of the cable 30 is connected to the cable interface 61 of the second component 60. The second component 60 is located between the cooling fan 50 and the heat sink 11, and the top of the second component 60 is lower than the top of the heat sink 11. This prevents the airflow from the air guide 211 blowing through the heat sink 11 from being blocked by the second component 60 and from directly entering the cooling fan 50. Both the first component 40 and the second component 60 may be circuit boards.

[0044] In a specific embodiment, the first component 40 is, for example, a main control circuit board, and the second component 60 is, for example, a DMD (Digital Micro-mirror Device) control board.

[0045] The projection device provided by the preferred embodiment of the present invention includes a support structure capable of protecting the long internal cables of the projection device. This support structure allows a portion of the cable 30 to be fixed to a support platform 21, preventing the cable 30 from tilting. Furthermore, when the projection device is assembled, the support platform 21 can act as a barrier for the cable 30. When the support platform 21 encounters interfering structures within the housing, the cable 30 can be protected, preventing the cable 30 from being directly torn by the interfering structures within the housing when assembled with the optical machine 10. Furthermore, an air guide 211 is formed at the bottom of the support platform 21, which can increase the airflow from the outside of the bracket 20 to the interior of the optical machine 10, thereby assisting the cooling fan 50 in dissipating heat from the core components of the optical machine 10.

[0046] The background section of the invention may contain background information about the problem or environment of the invention, rather than describing the prior art by others. Therefore, the content included in the background section is not an admission by the applicant that the prior art is available.

[0047] The above content is a further detailed description of the present invention in conjunction with specific / preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, they can also make several substitutions or modifications to these described embodiments, and these substitutions or modifications should be considered to belong to the scope of protection of the present invention. In the description of this specification, the reference terms "one embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in an appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction. Although the embodiments of the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the present invention as defined by the appended claims.

Claims

1. A projection device, characterized in that: The optical machine includes an optical engine, a bracket, a cable and a first component. The optical engine and the first component are respectively fixed to the bracket. The optical engine and the first component are electrically connected through the cable. One side of the bracket where the first component is fixed protrudes to form a support platform, and a part of the cable is fixed to the support platform.

2. The projection device according to claim 1, wherein: The support platform is protruded and formed at the first edge of the bracket.

3. The projection device according to claim 2, characterized in that The optical engine and the first component are respectively located on opposite sides of the bracket. A cable hole is opened on the bracket, and the cable passes through the cable hole. The cable hole is located in the direction of the support platform away from the first edge of the bracket.

4. The projection device according to claim 1, wherein: It also includes a shell, wherein a mounting cavity for fixing the bracket is provided in the shell, and when the bracket is installed into the mounting cavity, the edge of the support platform protrudes from or is flush with the edge of the cable.

5. The projection device according to claim 1, wherein: The first component is provided with a fixing column for fixing the cable, and the top of the support platform is flush with the top of the fixing column.

6. The projection device according to claim 1, wherein: The side wall of the support platform forms an air guide port that passes through the bracket and is away from the support platform. A heat sink is provided on the optical machine below the air guide port.

7. The projection device according to claim 6, characterized in that There are multiple heat sinks, and the multiple heat sinks are spaced apart from each other, wherein the extension direction of each heat sink is toward the air guide port.

8. The projection device according to claim 6, wherein: The support platform is protruded and formed at the first edge of the bracket, and the air guide port is opened at a side of the support platform close to the first edge of the bracket.

9. The projection device according to claim 6, wherein: It also includes a heat dissipation fan, which is fixed on the bracket and located on a side of the heat sink away from the air guide port.

10. The projection device according to claim 9, characterized in that It also includes a second component, which is fixed on the optical machine and electrically connected to the optical machine. One end of the cable is connected to the second component. The second component is located between the cooling fan and the heat sink, and the top of the second component is lower than the top of the heat sink.

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