CN214375778U

CN214375778U - Fully-sealed projection equipment

Info

Publication number: CN214375778U
Application number: CN202021712521.7U
Authority: CN
Inventors: 熊松
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-10-08
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a totally enclosed projection equipment, including mounting bracket, quick-witted case, damping rubber, quick-witted case is installed on the mounting bracket, and the mounting bracket is fixed with the external world again, and damping rubber installs between quick-witted case and mounting bracket. The case is a sealed case body, the projector, the radiator, the internal circulation fan assembly and the external radiating fan assembly are arranged in the case body, and an internal circulation channel and an external circulation channel are formed by two independent channels of the radiator. The utility model discloses lie in realizing the energy-absorbing shock attenuation through damping rubber, through two independent passageways of radiator, on inner loop fan assembly took the heat of projector to radiator and quick-witted tank wall, the outside radiator fan assembly of rethread realized the heat exchange to go away some heats through quick-witted tank wall, realized that projector and outside air are isolated, and reach the effect of heat dissipation, shielding, three proofings, improved the life of projector under complicated operating mode.

Description

Fully-sealed projection equipment

Technical Field

The utility model relates to a use projection equipment under the complicated operating mode environment, especially relate to a totally enclosed projection equipment.

Background

The projector mainly uses the fan group to radiate the core part of the projector and the main heat source such as the power supply, in order to prevent some core components of the projector from being melted or burnt by the high temperature inside, the projector manufacturer opens holes on the projector shell to ensure the effective ventilation of the projector when designing, and a ventilation hood is arranged inside to filter various pollutants or dust. Meanwhile, in order to guarantee the service life of the projector, a temperature sensor arranged inside the projector monitors the temperature change in the projector in real time and feeds the temperature change back to a processing circuit, and when the projector works, the inside of the projector is in a thermal balance state under the action of a cooling fan. The state is related to the external temperature, when the external temperature exceeds a certain temperature (mostly 35-36 ℃), the temperature of an important part inside the projector also exceeds the rated value of the important part, the important heat dissipation part is provided with a temperature sensor (such as a position near a liquid crystal, above a bulb and on a heat radiator of a power supply), and once the temperature reaches above the working critical point of the region, a protection program inside the projector starts to automatically shut down the projector.

Because the projector can generate great heat inside during working, if the heat can not be dissipated, the projector stops working, most projectors are in an open form at present, and the heat inside and the outside air are circulated through the fan to achieve the purpose of heat dissipation. In some complex environments, such as coal mines, subway rails and the like, not only dust is large, but also air humidity is large, and other various impurities are doped, and the dust impurities entering the projector seriously affect the service life of the projector. Although a ventilation hood is installed inside the projector to filter various pollutants or dust, most of the dust is usually filtered, and the filter screen is frequently replaced. In addition, for some complex electromagnetic environments, the external electromagnetic environment may affect the internal components of the projector, and the electric field emitted by the projector to the outside may interfere with other related electronic devices, and then when the projector is used outdoors, the projector cannot meet the environmental requirements of raining and the like.

When the projector is used, the projector is difficult to ensure that the projector is used for a long time to cause high heat and relevant components are failed due to the use in a relatively severe environment. Because the projector can generate a large amount of heat energy, a plurality of components are sensitive to external high humidity, high heat, dust, vibration and the like, and meanwhile, the electromagnetic environment influences related surrounding equipment. Therefore, in order to ensure the safety of the projector, shielding, heat dissipation, vibration resistance and three-proofing become a design requirement which must be considered for the projector.

Generally, the conventional projectors have a life under a complex environment which is not high enough, especially under high temperature, high humidity and high dust (containing iron, graphite, copper, etc.), for example, under an indoor environment of 25 ℃, the life expectancy of a 6000-stream brightness DLP projector is about 20000 hours, and the life inside a subway rail is about 1200 hours.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a fully sealed projection device for solving the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a totally enclosed projection equipment, includes mounting bracket, quick-witted case, damping rubber, the mounting bracket is the carrier of installation machine case, and quick-witted case is installed on the mounting bracket, and the mounting bracket is fixed with the external world again, quick-witted case realizes the three proofings requirement through spouting three proofings lacquer, damping rubber installs between quick-witted case and mounting bracket, realizes absorbing the vibration energy function.

Further, the case comprises a case lower layer, a case middle layer, a case upper cover, an upper cover ventilation net, a sealing shielding strip, a projector, a radiator, an internal circulation fan assembly, an external heat radiation fan assembly and a lens sealing assembly, wherein the case lower layer, the case middle layer, the case upper cover, the upper cover ventilation net and the sealing shielding strip form a sealed case which is a carrier for mounting the projector, the radiator, the internal circulation fan assembly, the external heat radiation fan assembly and the like, the projector is mounted on the case lower layer, the radiator is mounted on one side of an air outlet of the projector in the case, the radiator is an upper independent ventilation channel, a lower independent ventilation channel, a left independent ventilation channel and a right independent ventilation channel, one channel is an internal circulation channel and is not communicated with the external atmosphere, the other channel is an external channel and is communicated with the external air, the internal circulation fan assembly is mounted on one side of the radiator, and the external heat radiation fan assembly is mounted on the side of the external channel of the radiator, the lens sealing assembly is used for isolating the communication between the lens and the outside air.

The beneficial effects of the utility model reside in that:

the utility model discloses a damping rubber realizes the shock attenuation energy-absorbing, through two independent passageways of radiator, takes the heat of projector to radiator and quick-witted tank wall through inner loop fan module on, and the outside radiator fan module of rethread realizes the heat exchange to go away some heats through quick-witted tank wall, realized that projector and outside air are isolated, and reach the effect of heat dissipation, shielding, three proofings.

Drawings

Fig. 1 is a perspective view of the long-life hermetically sealed projection apparatus of the present invention.

Fig. 2 is a left side view of the high life hermetically sealed projector apparatus before assembly.

Fig. 3 is a perspective view of the long-life hermetically sealed projector case of the present invention.

Fig. 4 is a front view, a sectional view, and a sectional view of the assembled high life hermetically sealed projector case.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 and fig. 2, the life-span hermetically sealed projection device of the present invention includes a mounting frame 1, a case 3, and damping rubber 2. The machine case 3 is installed on the installation frame 1 through screws, an external installation hole is reserved in the installation frame 1 and used for external installation, and the damping rubber 2 is installed between the installation frame 1 and the machine case 3.

As shown in fig. 3 and 4, the chassis 3 includes a lower case layer 4, a bottom sealing shielding strip 5 for the heat sink, an internal circulation fan assembly 6, an upper sealing shielding strip 9 for the heat sink, an external heat dissipation fan assembly 10, an upper cover ventilation net 13, a sealing shielding strip 14 for the external heat dissipation fan assembly, an upper case cover 15, a sealing shielding strip 16 for the upper case cover and the middle case layer, a heat sink 17, a sealing shielding strip 18 for the heat sink and the middle case layer, a middle case layer 19, a sealing shielding strip 20 for the middle case layer and the lower case layer, an input/output connector 21, a projector 22, and a lens sealing assembly 23. The internal circulation fan assembly 6 comprises a fan 7 and a fan mounting box 8, the external heat radiation fan assembly 10 comprises a fan 12 and a fan mounting box 11, the input/output connector 21 is fixed on the left side of the lower box layer 4 to realize the input and output of signals and power, the lens sealing assembly 23 is mounted on a lens of the projector 22 and fixed on the lower box layer 4 to realize the sealing of the lens with the outside air, the middle box layer 19 is connected with the lower box layer 4 through screws, the sealing between the middle box layer 19 and the lower box layer 4 is realized through the middle box layer and the lower box layer sealing shielding strip 20, the radiator 17 and the internal circulation fan assembly 6 are loaded into the lower box layer 4 from the middle box layer 19, the sealing between the radiator 17 and the middle box layer 19 is realized through the radiator and the middle box layer sealing shielding strip 18, and the sealing between the bottom of the radiator 17 and the lower box layer 4 is realized through the radiator bottom sealing shielding strip 5, the box upper cover 15 is connected with the box middle layer 19 through screws, the box upper cover 15 and the box middle layer 19 are sealed through the box upper cover and the box middle layer sealing shielding strip 16, the external cooling fan assembly 10 is installed from the upper surface of the box upper cover 15 and contacts with the upper part of the radiator 17, the external cooling fan assembly 10 and the radiator 17 are sealed through the radiator upper part sealing shielding strip 9, the external cooling fan assembly 10 and the box upper cover 15 are sealed through the external cooling fan assembly sealing shielding strip 14, and the upper cover ventilation net 13 is fixed on the box upper cover 15 through screws. Radiator 17 is two independent wind channels about for, and upper cover ventilation net 13 opens there is the ventilation mesh, and the bottom of 4 dress radiators 17 of box lower floor has the ventilation mesh, realizes ventilating from top to bottom of radiator, trompil and 4 intercommunications of box lower floor about box middle level 19, form an inner loop wind channel between box lower floor 4, box middle level 19, the box upper cover 15, realizes the inner loop of wind through inner loop fan assembly 6 convulsions.

When external vibration energy is transmitted to the mounting frame 1, partial energy is absorbed by the damping rubber 2 and then transmitted to the case 3, so that energy absorption and shock absorption are realized. The fan of projector 22 self airs exhaust to the right side, through internal circulation fan module 6 convulsions, absorbs the heat through radiator 17, arrives projector 22's air intake again through the internal circulation wind channel, realizes the inner loop, and outside radiator fan module 10 realizes the heat dissipation through radiator 17 through blowing or induced drafting, absorbs the heat and gives off in the outside air through the wall of quick-witted case 3 simultaneously.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims

1. The utility model provides a totally enclosed projection equipment, includes mounting bracket, quick-witted case, damping rubber, quick-witted case passes through the mounting screw and installs on the mounting bracket, leaves the externally mounted hole on the mounting bracket and supplies the externally mounted usefulness, damping rubber installs between mounting bracket and quick-witted case, and its characterized in that realizes the shock attenuation energy-absorbing through damping rubber, has reduced the damage that external vibration caused the projector.

2. A hermetically sealed projection device in accordance with claim 1, wherein: the case comprises a case lower layer, a radiator bottom sealing shielding strip, an internal circulation fan assembly, a radiator upper sealing shielding strip, an external radiator fan assembly, an upper cover ventilation net, an external radiator fan assembly sealing shielding strip, a case upper cover and case middle layer sealing shielding strip, a radiator and case middle layer sealing shielding strip, a case middle layer and case lower layer sealing shielding strip, an input/output connector, a projector and a lens sealing assembly, wherein the case comprises the above parts to form a sealed case, the case middle layer is fixed on the case lower layer through screws, the case middle layer and the case lower layer sealing shielding strip are used for realizing the sealing between the case middle layer and the case lower layer, the radiator and the case middle layer sealing shielding strip are used for realizing the sealing between the radiator and the case middle layer, and the radiator bottom and the case lower layer sealing strip are used for realizing the sealing between the radiator bottom and the case lower layer, the upper cover of the box body is fixed on the middle layer of the box body through screws, the upper cover of the box body and the middle layer of the box body are sealed through the upper cover of the box body and a middle layer sealing shielding strip of the box body, the external cooling fan assembly and the radiator are sealed through an upper part sealing shielding strip of the radiator, the external cooling fan assembly and the upper cover of the box body are sealed through the sealing shielding strip of the external cooling fan assembly, the radiator is arranged in the box body and comprises a left independent air channel, a right independent air channel, an upper cover ventilation net, a ventilation net hole, a lower layer radiator bottom, the ventilation net hole, the upper and lower ventilation of the radiator, the left opening and the right opening of the middle layer of the box body are communicated with the lower layer of the box body, an internal circulation air channel is formed among the lower layer of the box body, the middle layer of the box body and the upper cover of the box body, air is exhausted through the internal circulation fan assembly, and the heat of the projector is brought to the radiator and the upper cover of the box wall through the two independent channels of the radiator and the internal circulation fan assembly of the radiator, and the part of the radiator And then, heat exchange is realized through the external cooling fan assembly, part of heat is radiated out through the wall of the projector box, the effects of heat radiation, shielding and three prevention are achieved, and the service life of the projector under the complex working condition is prolonged.