CN216848439U - LCD projector with automatic brightness adjustment function - Google Patents

Abstract

The utility model discloses an automatic LCD projector of adjustting of lighteness, concretely relates to projector technical field, including strengthening the host computer shell, the inside of strengthening the host computer shell is provided with radiator unit, radiator unit is including setting up the enhancement inside lining in strengthening the host computer shell, the one side of strengthening the inside lining is provided with the radiator. The utility model discloses a set up radiator unit, the built-in temperature detection sensor real-time detection of LED liquid crystal display, and give main control PCBA board with the data transmission of temperature parameter, main control PCBA board receives behind the data, the power of LED lamp light source is given to the rotational speed and the power of the first radiator fan of automatically regulated and second radiator fan, the rotational speed is adjusted through PWM to first radiator fan and second radiator fan rotational speed regulation master control, LED lamp light source power adjustment master control comes the power that power was given LED lamp light source through PWM, the temperature on the judgement LED liquid crystal display that can be accurate like this, be difficult for receiving the restriction of assembly precision, facilitate the use.

Description

LCD projector with automatic brightness adjustment function

Technical Field

The utility model relates to a projector technical field, more specifically say, the utility model relates to an automatic LCD projector of adjustting of lighteness.

Background

The projector, also known as a projector, is a device capable of projecting images or videos onto a curtain, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV, and the like through different interfaces to play corresponding video signals.

The common regulation in the existing market detects the temperature through adding temperature sensor on the radiator, and the leading cause that leads to the projector to become invalid like this is that LD screen temperature is too high, but adds the sensor on the radiator and receives the assembly precision, and the actual temperature on the LED screen is hardly reacted to the wind path, leads to judging the mistake.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides an automatic LCD projector of adjustting of lighteness, adjust the master control through first radiator fan and second radiator fan rotational speed and adjust the rotational speed through PWM, LED lamp light source power adjusts the master control and adjusts the power that the power gave LED lamp light source through PWM, the temperature on the judgement LED liquid crystal display that like this can be accurate, be difficult for receiving the restriction of assembly precision, facilitate the use, in order to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an LCD projector with automatic brightness adjustment comprises a reinforced host shell, wherein a heat dissipation assembly is arranged inside the reinforced host shell;

the heat dissipation assembly comprises a reinforcing lining arranged in a reinforcing host shell, a radiator is arranged on one side of the reinforcing lining, a main control PCBA board is arranged on the top of the radiator, and an LED lamp light source is arranged on one side of the radiator;

one side of LED lamp light source is provided with LED liquid crystal display, one side of LED liquid crystal display is provided with first radiator fan, one side of strengthening the inside lining is provided with second radiator fan, one side of first radiator fan is provided with the power, be provided with the temperature real-time detection sensor in the LED liquid crystal display.

In a preferred embodiment, the top of the reinforced main chassis is provided with a cover plate matched with the reinforced main chassis.

In a preferred embodiment, a plurality of limiting cylinders are arranged on the reinforcing lining, a plurality of limiting columns matched with the limiting cylinders are arranged at the bottom of the cover plate, and the limiting columns are clamped with the limiting cylinders.

In a preferred embodiment, one side of the LED liquid crystal display is provided with a first clamping limit plate, and the other side of the LED liquid crystal display is provided with a second clamping limit plate.

In a preferred embodiment, the reinforcing main chassis, the reinforcing inner lining and the cover plate are all made of stainless steel, and the outer side of the reinforcing inner lining and the inner wall of the reinforcing main chassis are provided with protective pads.

In a preferred embodiment, a plurality of airflow guiding and heat dissipating holes are formed through the outer side of the reinforcing main chassis.

The utility model discloses a technological effect and advantage:

1. through the arrangement of the heat dissipation assembly, a temperature detection sensor arranged in the LED liquid crystal display screen detects in real time, data of temperature parameters are transmitted to the main control PCBA board, after the main control PCBA board receives the data, the rotating speeds of the first heat dissipation fan and the second heat dissipation fan and the power of a power supply to the LED lamp light source are automatically adjusted, the rotating speeds of the first heat dissipation fan and the second heat dissipation fan are adjusted through PWM, the power of the power supply to the LED lamp light source is adjusted through PWM by the LED lamp light source power adjustment main control, so that the temperature on the LED liquid crystal display screen can be accurately judged, the assembly precision is not limited easily, and the use is convenient;

2. through setting up the apron, a spacing section of thick bamboo, spacing post and water conservancy diversion louvre, spacing section of thick bamboo is used with mutually supporting of spacing post for increase the stability of strengthening the host computer shell and apron and installing together, avoid strengthening the host computer shell and apron and drop, further increase strengthen the stability of host computer shell and apron and installing together, and the water conservancy diversion louvre can play the effect of water conservancy diversion, make things convenient for the outside air to exchange with the air of strengthening the host computer shell and apron inside, be convenient for dispel the heat.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a top view of the internal structure of the host case of the present invention.

Fig. 3 is a front view of the LED lcd, LED light source, first cooling fan, second cooling fan and power supply of the present invention.

Fig. 4 is a schematic view of a partial structure at a in fig. 3 according to the present invention.

The reference signs are: 1. reinforcing the main machine shell; 2. reinforcing the inner liner; 3. a heat sink; 4. a master control PCBA board; 5. an LED light source; 6. an LED liquid crystal display screen; 7. a first heat dissipation fan; 8. a second heat dissipation fan; 9. a power source; 10. a cover plate; 11. a limiting cylinder; 12. and (4) flow guiding and heat dissipating holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Fig. 1-4 show an LCD projector with automatic brightness adjustment, which includes a reinforced host casing 1, wherein a heat dissipation assembly is disposed inside the reinforced host casing 1;

the heat dissipation assembly comprises a reinforcing lining 2 arranged in a reinforcing host case 1, a radiator 3 is arranged on one side of the reinforcing lining 2, a main control PCBA board 4 is arranged on the top of the radiator 3, and an LED lamp light source 5 is arranged on one side of the radiator 3;

one side of LED light source 5 is provided with LED liquid crystal display 6, and one side of LED liquid crystal display 6 is provided with first radiator fan 7, and one side of strengthening inside lining 2 is provided with second radiator fan 8, and one side of first radiator fan 7 is provided with power 9, is provided with the temperature real-time detection sensor in the LED liquid crystal display 6.

Referring to fig. 1, the top of the reinforcing host case 1 is provided with a cover plate 10 matched with the reinforcing host case 1, the cover plate 10 can play a role in protection, damage to the internal structure of the reinforcing host case 1 caused by falling of external material resources in the reinforcing host case 1 is avoided, and what is used subsequently for reinforcing each structure in the host case 1 is increased.

Referring to fig. 1 and 4, a plurality of limiting cylinders 11 are arranged on the reinforcing lining 2, a plurality of limiting columns matched with the limiting cylinders 11 are arranged at the bottom of the cover plate 10, the limiting columns are clamped with the limiting cylinders 11, the limiting cylinders 11 and the limiting columns are matched with each other for use, the stability when the reinforcing host shell 1 and the cover plate 10 are installed together is improved, the reinforcing host shell 1 and the cover plate 10 are prevented from falling off, and the stability when the reinforcing host shell 1 and the cover plate 10 are installed together is further improved.

Referring to the attached drawing 2, one side of LED liquid crystal display 6 is provided with first centre gripping limiting plate 13, LED liquid crystal display 6's opposite side is provided with second centre gripping limiting plate 14, and first centre gripping limiting plate 13 and second centre gripping limiting plate 14 two play spacing effect to LED liquid crystal display 6, not only make things convenient for staff to install LED liquid crystal display 6, can reduce the injury that LED liquid crystal display 6 caused when 6 follow-up striking that receive simultaneously, further extension mechanism's life.

Referring to the attached drawings 1, 2, 3, 4, strengthen the host computer shell 1, strengthen inside lining 2, apron 10 is made by stainless steel, the outside of strengthening inside lining 2 and the inner wall of strengthening host computer shell 1 all are provided with the protection pad, stainless steel has good hardness, difficult emergence deformation, can effectual extension mechanism's life, and the protection pad then can be to installing radiator 3 in strengthening host computer shell 1, master control PCBA board 4, LED lamp light source 5, LED liquid crystal display 6, first radiator fan 7, second radiator fan 8 and power 9 play the effect of protection, not only can ensure that each structural mounting is stability together, cause the damage to each structure when strengthening host computer shell 1 simultaneously and dropping, further extension structure's life.

Referring to fig. 1, 2 and 3, the outside of the enhanced main chassis 1 is penetrated and provided with a plurality of flow guiding and heat dissipating holes 12, and the flow guiding and heat dissipating holes 12 can play a role of flow guiding, so that external air and air inside the enhanced main chassis 1 and the cover plate 10 can be exchanged conveniently, and heat dissipation is facilitated.

The utility model discloses the theory of operation: when light emitted by the LED lamp light source 5 passes through the LED liquid crystal display screen 6, heat can be generated, the temperature of the LED liquid crystal display screen 6 is increased, at the moment, a temperature detection sensor arranged in the LED liquid crystal display screen 6 detects in real time, data of temperature parameters are transmitted to the master control PCBA board 4, after the master control PCBA board 4 receives the data, the rotating speeds of the first cooling fan 7 and the second cooling fan 8 and the power of the power supply 9 for the LED lamp light source 5 are automatically adjusted, the rotating speeds of the first cooling fan 7 and the second cooling fan 8 are adjusted through PWM, and the power of the power supply 9 for the LED lamp light source 5 is adjusted through PWM by the power adjusting master control of the LED lamp light source 5.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. An LCD projector with automatic brightness adjustment, characterized in that: the heat dissipation device comprises a reinforced host shell (1), wherein a heat dissipation assembly is arranged inside the reinforced host shell (1);

the heat dissipation assembly comprises a reinforcing lining (2) arranged in a reinforcing host case (1), a radiator (3) is arranged on one side of the reinforcing lining (2), a master control PCBA board (4) is arranged at the top of the radiator (3), and an LED lamp light source (5) is arranged on one side of the radiator (3);

one side of LED light source (5) is provided with LED liquid crystal display (6), one side of LED liquid crystal display (6) is provided with first radiator fan (7), one side of strengthening inside lining (2) is provided with second radiator fan (8), one side of first radiator fan (7) is provided with power (9), be provided with the temperature real-time detection sensor in LED liquid crystal display (6).

2. An automatic brightness adjusting LCD projector as claimed in claim 1, characterized in that: and a cover plate (10) matched with the reinforced host case (1) is arranged at the top of the reinforced host case (1).

3. An automatic brightness adjusting LCD projector as claimed in claim 2, characterized in that: strengthen being provided with a plurality of spacing section of thick bamboo (11) on inside lining (2), the bottom of apron (10) is provided with a plurality of respectively with spacing section of thick bamboo (11) assorted spacing post, spacing post and spacing section of thick bamboo (11) looks block.

4. An automatic brightness adjusting LCD projector as claimed in claim 1, characterized in that: one side of LED liquid crystal display (6) is provided with first centre gripping limiting plate (13), the opposite side of LED liquid crystal display (6) is provided with second centre gripping limiting plate (14).

5. An automatic brightness adjusting LCD projector as claimed in claim 1, characterized in that: strengthen host computer shell (1), strengthen inside lining (2), apron (10) and make by stainless steel material, the inner wall of strengthening the outside of inside lining (2) and strengthening host computer shell (1) all is provided with the protection pad.

6. An automatic brightness adjusting LCD projector as claimed in claim 1, characterized in that: a plurality of flow guide heat dissipation holes (12) are formed in the outer side of the reinforced host machine shell (1) in a penetrating mode.

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