LED light source projection device

Abstract

The utility model discloses an LED light source projection device which comprises a bottom plate, a supporting plate fixedly connected to one side of the top of the bottom plate, an adjusting plate hinged to one side of the supporting plate, an LED light source assembly installed on the adjusting plate, an optical lens assembly installed on the front side of the LED light source assembly, and a heat dissipation assembly arranged on the top of the LED light source assembly. An adjusting assembly for adjusting the inclination angle of the adjusting plate is arranged between the lower part of the adjusting plate and the supporting plate; the first connecting rod is rotationally connected to the bottom of the adjusting plate, the sliding groove is formed in the supporting plate and is of a trapezoidal structure, the sliding block is slidably connected into the sliding groove and is of a trapezoidal structure, the positioning assembly is arranged on the sliding block and used for positioning the sliding block, and the bottom end of the first connecting rod is rotationally connected with the sliding block. Through the above structure, the projection angle is convenient to adjust to meet the use requirements of different angles, the use is flexible, the LED light source assembly is helped to dissipate heat more quickly, and the stable operation of the projection device is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to projection device technical field, especially a kind of LED light source projection device. BACKGROUND

[0002] LED projection technology is a kind of emerging projection display technology, it utilizes light-emitting diode (LED) as light source, compared with traditional projection technology, LED projection has higher energy efficiency, longer service life and better color performance.

[0003] In the prior art, after retrieval, it is found that Chinese patent discloses a kind of LED light source projection device, its application number is 201721860454.1, the patent mainly includes LED collimating system, light uniforming system, imaging system and projection lens, wherein LED collimating system includes LED light source, TIR lens is set to collimate light modulation corresponding to LED light source, and X-Plate is used to synthesize the light emitted by TIR lens;Imaging system includes relay first lens, reflector, relay second lens, RTIR single prism and DMD arranged in sequence, wherein the DMD is arranged below RTIR single prism, to reflect the light beam that passes through RTIR single prism and is shot into DMD to the internal slope of RTIR single prism and occurs total reflection.The utility model for improving the light path light efficiency and brightness of the LED light source projection device as a whole, to meet the miniaturization and brightness requirements of projection. However, the above-mentioned projection device is inconvenient to change the angle of projection lens according to the demand in the use process, this limitation makes the user feel inconvenient in practical application.When user needs to adjust the projection picture to specific angle or height, it is difficult to achieve satisfactory effect by relying on the projection device itself, which affects the user's experience. Therefore, the technical personnel in the art provide a kind of LED light source projection device to solve the problems raised in the above background technology. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of LED light source projection device, it is convenient to adjust projection angle, to meet the use demand of different angle, it is flexible to use, and it helps to help LED light source component to dissipate heat faster, it is beneficial to guarantee the stable operation of projection device.

[0005] To achieve the above object, provide a kind of LED light source projection device, including bottom plate, the bottom plate top one side fixedly connected with support plate, the support plate one side is hinged with adjusting plate, the adjusting plate is installed with LED light source component, the LED light source component front side is installed with optical lens component, the LED light source component top is equipped with heat dissipation component, adjusting plate below and between support plate are equipped with the adjusting component of adjusting adjusting plate inclination angle;

[0006] The adjusting assembly comprises a first connecting rod rotatably connected to the bottom of the adjusting plate, a sliding groove in the form of a trapezoid provided in the inner portion of the supporting plate, a sliding block in the form of a trapezoid slidably connected to the inner portion of the sliding groove, and a positioning assembly provided on the sliding block for positioning the sliding block, wherein the bottom end of the first connecting rod is rotatably connected to the sliding block.

[0007] The heat dissipation assembly comprises a heat sink mounted on the top of the LED light source assembly and a fan mounted above the heat sink.

[0008] According to the LED light source projection device, the positioning assembly comprises two toothed strip plates fixedly connected to the outer sides of the supporting plate and located on both sides of the sliding groove, a sliding rod slidably connected to the inner portion of the sliding block, an end plate slidably connected to the inner portion of the sliding rod and fixedly connected to the end portion of the sliding rod, a first spring sleeved on the outer side of the sliding rod and located on one side of the end plate, a positioning plate provided on one side of the sliding block, and two positioning toothed plates fixedly connected to one side of the positioning plate close to the toothed strip plates, one end of the sliding rod away from the end plate is fixedly connected to the positioning plate, and the positioning toothed plates are connected to the adjacent toothed strip plates in a matched mode.

[0009] According to the LED light source projection device, four second connecting rods are slidably connected to the inner portion of the adjusting plate in a uniform mode, the bottom end of each second connecting rod is fixedly connected to a limiting plate, a second spring is sleeved on the outer side of each second connecting rod and located between the limiting plate and the adjusting plate, a first mounting plate is provided on the top of the LED light source assembly, and the top end of each second connecting rod is fixedly connected to the bottom portion of the first mounting plate.

[0010] According to the LED light source projection device, the heat sink is embedded in the inner portion of the first mounting plate, the top portion of the first mounting plate is fixedly connected to a second mounting plate, and the fan is fixedly connected to the top portion of the second mounting plate.

[0011] According to the LED light source projection device, an antiskid pad is mounted on the bottom portion of the bottom plate.

[0012] According to the LED light source projection device, a blocking block is fixedly connected to the bottom portion of the first mounting plate and located around the LED light source assembly.

[0013] The LED light source projection device has the following beneficial effects:

[0014] 1. Compared with the prior art, the LED light source projection device is provided with a sliding block capable of sliding up and down, a first connecting rod, an adjusting plate and a positioning assembly for positioning the sliding block, the adjusting plate can be rotated around the hinge shaft, the projection angle can be adjusted, the use requirement of different angles can be met, the operation is simple, and the use is flexible.

[0015] 2、Compared with the prior art, the LED light source projection device, the LED light source assembly is movably installed between the first mounting plate and the adjusting plate through the cooperation of the first mounting plate, the second connecting rod, the second spring and the limiting plate, is convenient to disassemble and assemble, facilitates maintenance and other work, and is convenient to use; and the heat sink above the first mounting plate and the fan can better conduct the heat generated by the LED light source assembly and generate air flow when the fan operates, helping the LED light source assembly to dissipate heat faster, and helping to ensure stable operation of the projection device.

[0016] The additional aspects and advantages of the present application will be given in part in the following description, will become apparent from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in combination with the drawings and examples;

[0018] Figure 1 FIG. 1 is a first overall structure schematic diagram of the LED light source projection device of the present application;

[0019] Figure 2 FIG. 2 is a second overall structure schematic diagram of the LED light source projection device of the present application;

[0020] Figure 3 FIG. 3 is a sliding block internal section structure schematic diagram of the LED light source projection device of the present application;

[0021] Figure 4 FIG. 4 is a tooth strip plate and positioning tooth plate structure schematic diagram of the LED light source projection device of the present application;

[0022] Figure 5 FIG. 5 is a Figure 2 enlarged structure schematic diagram of position A in FIG. 4.

[0023] LEGEND:

[0024] 1, bottom plate; 2, support plate; 3, adjusting plate; 4, LED light source assembly; 5, optical lens assembly; 6, sliding groove; 7, sliding block; 8, positioning plate; 9, tooth strip plate; 10, first connecting rod; 11, sliding rod; 12, end plate; 13, first spring; 14, positioning tooth plate; 15, second connecting rod; 16, second spring; 17, limiting plate; 18, first mounting plate; 19, heat sink; 20, second mounting plate; 21, fan; 22, non-slip pad; 23, stop block. DETAILED DESCRIPTION

[0025] The detailed embodiments of the utility model will be described in detail in this part, the preferred embodiment of the utility model is shown in the drawings, the role of the drawings is to supplement the description of the written part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0026] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 And Figure 5 , the utility model discloses a kind of LED light source projection device, it includes bottom plate 1, the top of bottom plate 1 One side is fixedly connected with support plate 2, the one side of support plate 2 is hinged with adjusting plate 3, LED light source assembly 4 is installed on adjusting plate 3, high-brightness LED light source is used, more extensive color gamut and higher brightness can be realized. Optical lens assembly 5 is installed on the front side of LED light source assembly 4, high-transmittance optical lens system is used, the light emitted by LED light source is focused and expanded, to achieve ideal projection effect. In order to enhance the heat dissipation effect, the top of LED light source assembly 4 is equipped with heat dissipation component. Adjusting plate 3 below and between support plate 2 are equipped with adjusting component for adjusting the inclination angle of adjusting plate 3, and the adjusting component includes first connecting rod 10 rotatably connected to the bottom of adjusting plate 3, sliding groove 6 opened in the inside of support plate 2 and being trapezoidal structure, sliding block 7 slidably connected to the inside of sliding groove 6 and being trapezoidal structure, and positioning component for positioning sliding block 7 provided on sliding block 7, the bottom end of first connecting rod 10 is rotatably connected with sliding block 7, the positioning component includes two toothed strip plates 9 fixedly connected to the outside of support plate 2 and located on both sides of sliding groove 6, sliding rod 11 slidably connected to the inside of sliding block 7, end plate 12 slidably connected to the inside of sliding rod 11 and fixedly connected with the end of sliding rod 11, first spring 13 sleeved to the outside of sliding rod 11 and located on one side of end plate 12, positioning plate 8 provided on one side of sliding block 7, and two positioning toothed plates 14 symmetrically fixedly connected to one side of positioning plate 8 close to toothed strip plate 9, one end of sliding rod 11 away from end plate 12 is fixedly connected with positioning plate 8, and positioning toothed plate 14 can be connected with adjacent toothed strip plate 9.

[0027] When the projection angle needs to be adjusted, the positioning plate 8 is operated outward to separate the positioning toothed plate 14 from the toothed strip plate 9. The sliding block 7 is moved up and down to slide in the sliding groove 6, and the sliding block 7 drives the first connecting rod 10 to move up and down, and the first connecting rod 10 is connected with the adjusting plate 3, so that the adjusting plate 3 can be rotated around the hinge shaft, which is convenient for adjusting the projection angle and can meet the use requirements of different angles. After adjustment is completed, the positioning plate 8 is released to reset the sliding rod 11 and the positioning plate 8 under the action of the first spring 13 and the end plate 12, so that the positioning toothed plate 14 on the positioning plate 8 is inserted with the toothed strip plate 9, which can ensure that the adjusted angle is stable and unchanged, the operation is simple, and the use is flexible.

[0028] The four second connecting rods 15 are uniformly and slidingly connected inside the adjusting plate 3, the bottom ends of the second connecting rods 15 are fixedly connected with the limiting plates 17, the second springs 16 are arranged outside the second connecting rods 15 and between the limiting plates 17 and the adjusting plate 3, the first mounting plate 18 is arranged on the top of the LED light source assembly 4, and the top ends of the second connecting rods 15 are fixedly connected with the bottom of the first mounting plate 18.

[0029] The LED light source assembly 4 is arranged above the adjusting plate 3, the second springs 16 elastically push the limiting plates 17 and the second connecting rods 15 to keep the downward moving state, so that the first mounting plate 18 is stably attached to the top of the LED light source assembly 4, and the clamping and positioning effect of the LED light source assembly 4 is achieved. The LED light source assembly 4 is movably arranged between the first mounting plate 18 and the adjusting plate 3, the first mounting plate 18 is separated from the top of the LED light source assembly 4 by upward operation, the LED light source assembly 4 is convenient to take out, and maintenance and other work are facilitated, and the use is convenient.

[0030] The heat dissipation assembly comprises the heat sink 19 arranged on the top of the LED light source assembly 4 and the fan 21 arranged above the heat sink 19, the heat sink 19 is embedded in the first mounting plate 18, so as to better conduct heat. The second mounting plate 20 is fixedly connected to the top of the first mounting plate 18, and the fan 21 is fixedly connected to the top of the second mounting plate 20. When the fan 21 operates, air flow can be generated to help the heat sink 19 dissipate heat faster.

[0031] The anti-skid pad 22 is arranged on the bottom of the bottom plate 1 to increase stability and prevent sliding. The stoppers 23 are fixedly connected to the bottom of the first mounting plate 18 and around the LED light source assembly 4, so as to enhance the positioning effect of the LED light source assembly 4 and ensure the stability of the LED light source assembly 4 between the first mounting plate 18 and the adjusting plate 3.

[0032] Working principle: the LED light source assembly 4 is arranged above the adjusting plate 3, the second springs 16 elastically push the limiting plates 17 and the second connecting rods 15 to keep the downward moving state, so that the first mounting plate 18 is stably attached to the top of the LED light source assembly 4, and the clamping and positioning effect of the LED light source assembly 4 is achieved.

[0033] The heat sink 19 is attached above the LED light source assembly 4, can better conduct the heat generated by the LED light source assembly 4, and through the air flow generated when the fan 21 operates, the heat sink 19 can dissipate heat faster.

[0034] When the projection angle needs to be adjusted, the positioning plate 8 is operated outward to separate the positioning toothed plate 14 from the toothed strip plate 9. The slider 7 is moved up and down inside the sliding groove 6, and the first connecting rod 10 is moved up and down at the same time, and the first connecting rod 10 is connected with the adjusting plate 3, so that the adjusting plate 3 can be rotated around the hinge shaft, and the projection angle can be adjusted, and the use requirement of different angles can be met. After the adjustment is completed, the positioning plate 8 is released, and the sliding rod 11 and the positioning plate 8 are reset under the action of the first spring 13 and the end plate 12, so that the positioning toothed plate 14 on the positioning plate 8 is inserted and matched with the toothed strip plate 9, the adjusted angle can be ensured to be stable and unchanged, the operation is simple, and the use is flexible.

[0035] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. An LED light source projection apparatus, characterized by, The utility model provides a kind of LED light source assembly, including bottom plate (1), the top side of the bottom plate (1) is fixedly connected with support plate (2), the side of the support plate (2) is hinged with adjusting plate (3), LED light source assembly (4) is installed on the adjusting plate (3), optical lens assembly (5) is installed on the front side of LED light source assembly (4), heat dissipation component is equipped on the top of LED light source assembly (4), adjusting component for adjusting the inclination angle of adjusting plate (3) is equipped between the lower side of adjusting plate (3) and support plate (2). The adjusting component includes first connecting rod (10) rotatably connected to the bottom of adjusting plate (3), sliding groove (6) with trapezoidal structure opened in the inside of support plate (2), sliding block (7) with trapezoidal structure slidably connected in the inside of sliding groove (6) and positioning component provided on sliding block (7) for positioning sliding block (7), and the bottom end of first connecting rod (10) is rotatably connected with sliding block (7). The heat dissipation component includes heat sink (19) installed on the top of LED light source assembly (4) and fan (21) installed above heat sink (19).

2. The LED light source projection apparatus according to claim 1, wherein The positioning component includes two toothed strip plates (9) fixedly connected to the outside of support plate (2) and located on both sides of sliding groove (6), sliding rod (11) slidably connected in the inside of sliding block (7), end plate (12) slidably connected in the inside of sliding rod (11) and fixedly connected with the end of sliding rod (11), first spring (13) sleeved on the outside of sliding rod (11) and located on one side of end plate (12), positioning plate (8) provided on one side of sliding block (7) and two positioning toothed plates (14) symmetrically fixedly connected to one side of positioning plate (8) close to toothed strip plate (9), one end of sliding rod (11) away from end plate (12) is fixedly connected with positioning plate (8), and positioning toothed plate (14) can be connected with adjacent toothed strip plate (9).

3. The LED light source projection apparatus according to claim 2, wherein Four second connecting rods (15) are uniformly slidably connected in the inside of adjusting plate (3), the bottom end of second connecting rod (15) is fixedly connected with limiting plate (17), second spring (16) is sleeved on the outside of second connecting rod (15) and located between limiting plate (17) and adjusting plate (3), first mounting plate (18) is provided on the top of LED light source assembly (4), and the top end of second connecting rod (15) is fixedly connected with the bottom of first mounting plate (18).

4. The LED light source projection apparatus according to claim 3, wherein Heat sink (19) is embedded in the inside of first mounting plate (18), second mounting plate (20) is fixedly connected to the top of first mounting plate (18), and fan (21) is fixedly connected to the top of second mounting plate (20).

5. The LED light source projection apparatus according to claim 4, wherein Antiskid pad (22) is installed on the bottom of bottom plate (1).

6. The LED light source projection apparatus according to claim 5, wherein Stop block (23) is fixedly connected to the bottom of first mounting plate (18) and around LED light source assembly (4). Antiskid pad (22) is installed on the bottom of bottom plate (1). Stop block (23) is fixedly connected to the bottom of first mounting plate (18) and around LED light source assembly (4).

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