Projection device

Abstract

The utility model relates to the technical field of digital vehicle lamps, in particular to a projection device, which comprises a base, the frame is of a multi-face through frame structure, the bottom of the frame is vertically distributed and fixed to the base, and a communication notch is jointly formed between the frame and the base; a mounting plane is arranged at one end of the heat dissipation seat, the side, provided with the mounting plane, of the heat dissipation seat is fixedly arranged in the frame, and a main body of the heat dissipation seat is exposed outside; the Micro-LED chip is fixed on the mounting plane in an attached manner; the lens cover is fixedly arranged on the front side of the Micro-LED chip, and a light hole is formed in the middle of the lens cover; and a lens module. The automobile lamp can effectively solve the problems that an existing automobile lamp is stiff, can only illuminate and cannot project patterns, and can project corresponding patterns according to the content displayed by the chip.

Description

Technical Field

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

[0002] Existing headlights usually use LEDs or bulbs as light sources to project bright light for road lighting, but existing headlights usually cannot project patterns or other content. In addition, if you want to project patterns, existing projection devices are either insufficiently bright or too large to be installed on a vehicle as headlights. Utility Model Content

[0003] Technical issues solved

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a projection device, which can effectively solve the problem that the existing car lights are dull and can only illuminate but cannot project patterns, and can project corresponding patterns according to the content displayed by the chip.

[0005] Technical Solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a projection device, comprising a base, with a mounting groove arranged inside;

[0008] and a frame, which is a multi-faceted through-frame structure, the bottom of which is vertically distributed and fixed on the base, and a communication slot is provided between the frame and the base;

[0009] and a heat sink, one end of which is provided with a mounting plane, and one side provided with the mounting plane is fixedly arranged in the frame, and the main body of the heat sink is exposed to the outside;

[0010] and a Micro-led chip, which is bonded and fixed on the mounting plane;

[0011] and a lens cover, which is fixedly arranged on the front side of the Micro-led chip, and a light-transmitting hole is arranged in the middle of the lens cover;

[0012] and a lens module, which passes through the light-transmitting hole and is fixedly arranged on the lens cover, and the light-emitting display of the Micro-led chip is projected through the lens module;

[0013] And a closed cover is arranged outside the frame and together with the lens cover and the mounting plane forms a sealed chamber.

[0014] Furthermore, the frame is a rectangular frame with a pair of side surfaces and a top surface connected therethrough, a pair of connecting ear plates are symmetrically arranged on the inner side of the frame, the connecting ear plates are provided with connecting through holes, and the heat sink is fitted and fixed on the connecting ear plates.

[0015] Furthermore, first threaded holes are provided at four corners of one end surface of the frame, and connecting through holes matching the first threaded holes are provided at four corners of the lens cover.

[0016] Furthermore, second threaded holes are provided on both sides of the top surface of the frame, and connecting through holes matching the second threaded holes are provided on the closing cover.

[0017] Furthermore, locking holes are symmetrically arranged on the lens cover along the radial direction of the light-transmitting hole.

[0018] Furthermore, the lens cover is provided with a limiting piece at the edge of the light-transmitting hole on one side close to the Micro-led chip, and the lens module is inserted through the light-transmitting hole and fits into the limiting piece in place.

[0019] Furthermore, the heat sink extends a plurality of heat sinks toward the other side along the mounting plane, and a heat sink fan is connected to the rear end of the heat sink.

[0020] Furthermore, it also includes a PCB board for driving the Micro-led chip, the PCB board is fixedly arranged in the mounting groove, and is connected to the Micro-led chip through a flat cable passing through the communication slot.

[0021] Beneficial Effects

[0022] Compared with the known public technology, the technical solution provided by the utility model has the following beneficial effects:

[0023] The projection device of the present invention adopts a Micro-led chip as a core component for screen projection display, and respectively installs a heat sink for the Micro-led chip and a lens module for screen projection on both sides of a multi-sided through frame. The overall structure is simple. The utility model can effectively solve the problem that existing car lights are dull and can only provide illumination but cannot project patterns, and can project corresponding patterns according to the content displayed by the chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a front perspective view of the projection device of the utility model;

[0026] Figure 2 This is a rear perspective view of the projection device of the utility model;

[0027] Figure 3 This is an exploded view of the projection device of the utility model;

[0028] Figure 4 This is a schematic diagram of the chamber where the Micro-led chip of the utility model is located;

[0029] Figure 5 This is a schematic diagram of the cooperation between the lens module and the lens of the utility model;

[0030] Figure 6 This is a schematic diagram of the connection between the Micro-led chip and the heat sink of the utility model on the frame;

[0031] Figure 7 This is a schematic diagram of fixing the frame of the utility model on the base;

[0032] The numbers in the figure represent: 10, base; 11, mounting slot; 12, communication slot; 20, frame; 21, connecting ear plate; 22, first threaded hole; 23, second threaded hole; 30, heat sink; 31, mounting plane; 32, heat sink; 40, Micro-led chip; 50, lens cover; 51, light-transmitting hole; 52, locking hole; 53, limiter; 60, lens module; 70, closing cover; 80, cooling fan; 90, PCB board. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The utility model is further described below in conjunction with embodiments.

[0035] Example:

[0036] The utility model provides a projection device, which is a new type of projection equipment constructed by adopting a Micro-led chip 40 as a core component for screen projection display, wherein the Micro-led chip 40 is an existing finished product module, and the Micro-led chip 40 has self-luminescence and image display capabilities. Since the Micro-led chip 40 is a solid-state semiconductor device, the main structure of the Micro-led chip 40 includes a densely integrated LED array and a TFT driving substrate for driving the LED array. The existing Micro-led chip 40 can achieve high brightness: 1 million nits or even higher, and high resolution: not less than 5000PPI; in the specific use of screen projection, it is necessary to establish a communication connection with an external PCB board 90 for outputting image screens through a cable connector led out through the TFT driving substrate, and the projection function of the external image screen is realized through the projection of the lens module 60.

[0037] Reference Figure 1-7 , the following is an explanation of the composition structure of this product:

[0038] The main structure of this product includes a base 10, which is provided with a mounting groove 11 inside. The base 10 is mainly used as a placement support for the projection device, and the mounting groove 11 inside is used to install a PCB board 90 that provides image information.

[0039] A frame 20 is vertically distributed and fixed on the base 10. The frame 20 is a multi-faceted through-frame 20 structure, and a communication slot 12 is provided between the frame 20 and the base 10. The communication slot 12 is used to realize the communication connection between the Micro-led chip 40 on the upper side and the PCB board 90 on the lower side. During use, communication is established with the Micro-led chip 40 by passing the communication slot 12 through the wiring, and the PCB board 90 transmits the image information to the Micro-led chip 40 for display.

[0040] It also includes a heat sink 30 for dissipating heat from the Micro-led chip 40. One end of the heat sink 30 is provided with a mounting plane 31, and one side provided with the mounting plane 31 is fixedly arranged in the frame 20. The Micro-led chip 40 is attached to the mounting plane 31 by heat dissipation silicone grease. The hollow feature of the frame 20 allows the main body of the heat sink 30 to be exposed to the outside, which can achieve a better heat dissipation effect to ensure the high performance and stable operation of the Micro-led chip 40.

[0041] The lens cover 50 and the matching lens module 60 are fixedly arranged on the front side of the Micro-led chip 40, and a light-transmitting hole 51 is provided in the middle of the lens cover 50; specifically, the lens module 60 passes through the light-transmitting hole 51 and is fixedly arranged on the lens cover 50, and the light-emitting display of the Micro-led chip 40 is projected through the lens module 60, thereby realizing the projection function of the external image.

[0042] In addition, in order to avoid the influence of external light, a closed cover 70 is provided, which is arranged outside the frame 20, and together with the lens cover 50 and the mounting plane 31, forms a sealed chamber. In this way, the Micro-LED chip 40 located in the sealed chamber has a good light-emitting display environment; after removing the closed cover 70, the frame 20 can be penetrated through the top surface, and the light-emitting working condition of the Micro-LED chip 40 can be observed, which is convenient for assembly and debugging.

[0043] The projection device adopts a Micro-led chip 40 as the core component for image projection display, and installs a heat sink 30 for the Micro-led chip 40 and a lens module 60 for image projection on both sides of a frame 20. The overall structure is simple, and the processing and assembly costs are greatly reduced compared with the prior art projectors. At the same time, the relatively small size of the Micro-led chip 40 cooperates with the heat sink 30 exposed on the main body, so that the projector can maintain a relatively high luminous brightness while also having the small size and portability of the projector.

[0044] The following is a description of the preferred specific implementation methods of the various components of the projection device of this product:

[0045] In the specific connection design of the heat sink 30, the design frame 20 is a pair of rectangular frames 20 with the side and top surfaces penetrated, and a pair of connecting ear plates 21 are symmetrically arranged on the inner side of the frame 20. The connecting ear plates 21 are provided with connecting through holes, and the Micro-led chip 40 and the heat sink 30 are fitted and fixed on both sides of the connecting ear plates 21.

[0046] The heat sink 30 has a plurality of heat sinks 32 extending from the mounting plane 31 to the other side. The main body of the heat sink 30 is made of copper with high-quality thermal conductivity, and a heat sink fan 80 is connected to the rear end of the heat sink 32 to further improve the heat dissipation effect.

[0047] In realizing the connection between the frame 20 and the lens cover 50, the four corners of one end face of the frame 20 are provided with first threaded holes 22, and the four corners of the lens cover 50 are provided with connecting through holes matching the first threaded holes 22, and the connection is fixed by screws. In addition, the lens module 60 in this embodiment adopts the existing conventional projection lens, which is usually composed of a plurality of lenses, and these lenses have different shapes and properties so as to be able to correctly focus light and form a clear image, which will not be described in detail here. In the specific connection and fixation, by providing locking holes 52 on the lens cover 50 in radial symmetry along the light-transmitting hole 51, the lens module 60 passing through the light-transmitting hole 51 is tightened and fixed by the locking screws, and the connection and fixation are convenient.

[0048] In addition, in order to conveniently maintain the installation gap between the lens module 60 and the Micro-led chip 40, a stopper 53 is provided at the edge of the light-transmitting hole 51 on the side close to the Micro-led chip 40 through the lens cover 50, and the lens module 60 is inserted through the light-transmitting hole 51 and fits the stopper 53 in place. Specifically, in this embodiment, a threaded hole is provided in the circumference of the light-transmitting hole 51, and a flat head screw is connected in the threaded hole, and the part of the flat head screw protruding into the head hole is used as a limit point. In this design, the lens cover 50 processed by CNC can save processing steps and improve processing efficiency.

[0049] In the connection of the closed cover 70, second threaded holes 23 are provided on both sides of the top surface of the frame 20, and connecting through holes matching the second threaded holes 23 are provided on the closed cover 70. At the same time, the closed cover 70 with an I-shaped structure is connected and fixed to the base 10 at the lower end by screws.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A projection device, characterized in that: include: A base having a mounting slot therein; The frame is a multi-faceted frame structure, the bottom of which is vertically distributed and fixed on the base, and a communication slot is provided between the frame and the base; A heat sink, one end of which is provided with a mounting plane, and a side provided with the mounting plane is fixedly arranged in the frame, and a main body of the heat sink is exposed to the outside; Micro-led chip, fitted and fixed on the mounting plane; A lens cover is fixedly arranged on the front side of the Micro-led chip, and a light-transmitting hole is arranged in the middle of the lens cover; A lens module passes through the light-transmitting hole and is fixedly arranged on the lens cover, and the light-emitting display of the Micro-led chip is projected through the lens module; The closed cover is arranged outside the frame and together with the lens cover and the mounting plane form a sealed chamber.

2. A projection device according to claim 1, characterized in that: The frame is a rectangular frame with a pair of side surfaces and a top surface penetrating therethrough, and a pair of connecting ear plates are symmetrically arranged on the inner side of the frame.

3. A projection device according to claim 2, characterized in that: First threaded holes are arranged at four corners of one end surface of the frame, and connecting through holes matching the first threaded holes are arranged at four corners of the lens cover.

4. A projection device according to claim 2, characterized in that: Second threaded holes are arranged on both sides of the top surface of the frame, and connecting through holes matching the second threaded holes are arranged on the closing cover.

5. A projection device according to claim 3, characterized in that: The lens cover is provided with locking holes symmetrically along the radial direction of the light-transmitting hole.

6. A projection device according to claim 5, characterized in that: The lens cover is provided with a stopper at the edge of the light-transmitting hole close to the Micro-led chip, and the lens module is inserted through the light-transmitting hole and fits into the stopper.

7. The projection device according to claim 1, characterized in that: The heat sink seat extends a plurality of heat sinks toward the other side along the mounting plane, and a heat sink fan is connected to the rear end of the heat sink.

8. The projection device according to claim 1, characterized in that: It also includes a PCB board for driving the Micro-led chip. The PCB board is fixedly arranged in the mounting groove and is connected to the Micro-led chip through a flat cable passing through the communication slot.

9. The projection device according to claim 2, characterized in that: The connecting ear plate is provided with a connecting through hole.

10. The projection device according to claim 9, characterized in that: The heat sink is fixed on the connecting ear plate.

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