CN202835573U - Digital projector constant temperature and humidity machine box - Google Patents
Digital projector constant temperature and humidity machine box Download PDFInfo
- Publication number
- CN202835573U CN202835573U CN 201220445622 CN201220445622U CN202835573U CN 202835573 U CN202835573 U CN 202835573U CN 201220445622 CN201220445622 CN 201220445622 CN 201220445622 U CN201220445622 U CN 201220445622U CN 202835573 U CN202835573 U CN 202835573U
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- projector
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- box
- humidity
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Abstract
The utility model relates to a digital projector constant temperature and humidity machine box. The machine box comprises a refrigeration host, an airtight projector box body and an air exchange box, and is characterized in that a digital projector is placed in a projector box which is provided with an image broadcasting port and matched with a projector lens; a projector wind gap is communicated with an air inlet of the air exchange box; the air inlet, a still pressure box, a medium efficiency filter, a condenser, an evaporator and a drought fan are sequentially arranged in the air exchange box; and an outlet of the drought fan is connected with an air inlet of the projector box through a sound attenuation plate. Compared with a traditional air conditioning system, a projector can be placed in the closed machine box, cleaning of work environment, and best states of wind speed, and temperature and humidity are ensured, and risks brought about by the poor using environment are avoided.
Description
Technical field
The utility model belongs to air-conditioning equipment, is specifically related to a kind of constant temperature and humidity air draft cabinet of digital projector.
Background technology
Obtained development at full speed since digital projection device is introduced China, the movie theatre numeral projection system of existing thousands of cover specialties uses at home at present, is bringing into play the effect of replacing film projection machine.Yet new digital projector has higher requirement than traditional film machine to traditional film projection booth environment, humiture, air draft wind speed, power supply are stable etc.Traditional digital projector machine room is Open architecture, the building environment temperature is high, high humidity, dust large, the low projection equipment fluctuation of service that causes of air draft wind speed, common air-conditioning system can not satisfy the projector requirement higher to humiture, cause the projection equipment work under bad environment, the projector fault rate increases, and may cause the part parts of equipment to damage.Shorten the service life of xenon lamp, and common exhaust system is the all-fresh air system, and the projector air draft directly is discharged to outdoor, because exhaust air rate is larger, causes new wind load large, and energy waste is serious; The rotation of fan can drive dust and enter projector with air-flow, is deposited on the wiring board of projector, if irregularly cleaning may cause crashing, integrated circuit board such as burns at the accident.To the movie theatre economic loss, even affect the movie theatre reputation.The total solution of digital projector becomes bottleneck problem extremely urgent and that need solve.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming that existing digital projector running environment total solution exists, and a kind of effectively reliable digital projector constant temperature and humidity cabinet is provided.
The purpose of this utility model is achieved in that a kind of digital projector constant temperature and humidity cabinet, consisted of by refrigeration host computer, airtight projector casing and air exchange box, it is characterized in that, digital projector is placed in the projection cabinet, the projection cabinet has image broadcast mouth and is complementary with the projector camera lens, the projector air port is communicated with the air inlet of air exchange box, set gradually air inlet, plenum chamber, medium effeciency filter, condenser, evaporimeter, blower fan in the air exchange box, fan outlet connects the air inlet of projection cabinet by acoustical panel.
The utility model technical scheme comprises: the tank wall of said projection cabinet and air exchange box is to be made by the protection sound and thermal insulating material, and projection cabinet image is play mouth and is provided with sheet glass; Between medium effeciency filter and the condenser, be respectively arranged with temperature and moisture sensors between evaporimeter and the blower fan, be used for the work of induction control constant temperature and humidity control module or stop the electronics cross valve of controlling in addition Dehumidifying element work in the off-premises station or stopping.
The utility model technical scheme comprises: system, control circuit is comprised of temperature sensor, humidity sensor, input/output module, memory, central processing system, power module, control panel.
The utility model adopts the refrigeration outer circulation, the mode of circulation in the air draft, air in the sealing projector, air is circulated in projector, absorb behind the heat of heater members of projector and the heating component that places the projector top, evaporimeter, medium effeciency filter, plenum chamber, the muffler contact, obtain purifying air of constant temperature and humidity, be transported to projector inside, arrive this dissipation of heat outdoor by kind of refrigeration cycle simultaneously, the utility model can guarantee that the heat that the heat generating components of projector produces spreads out of, and can guarantee that again the projector internal structure is unaffected, but working environment can reach optimum efficiency again, and overall structure is simple, easily implements.
Description of drawings
Fig. 1 the utility model projector constant temperature and humidity cabinet forms schematic diagram.
Fig. 2 the utility model projector constant temperature and humidity cabinet dehumidification principle figure.
The number in the figure explanation:
1. projection cabinet, 2. projector, 3. projector filter screen, 4. airduct, 5. plenum chamber, 6. medium effeciency filter, 7. acoustical panel, 8. condenser, 9. evaporimeter, 10. blower fan, 11. copper pipes, 12. temperature sensor A, 13. humidity sensor A, 14. wires, 15. air exchange boxes, 16. automatic control units, 17. off-premises station, 18. control panels, 19. condensate draining pipes, 20. temperature sensor B, 21. humidity sensor B, 22. optical glass, 23, insulation material.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Figure 1 shows that the utility model projector constant temperature and humidity cabinet forms schematic diagram.Among the figure, the utility model digital projector constant temperature and humidity air draft cabinet, consisted of by refrigeration host computer 17, airtight projector casing 1 and air exchange box 15, digital projector 2 is placed in the projection cabinet 1, the projection cabinet has image broadcast mouth and is complementary with the projector camera lens, the projector air port is communicated with the air inlet 4 of air exchange box, set gradually air inlet 4, plenum chamber 5, medium effeciency filter 6, condenser 8, evaporimeter 9, blower fan 10 in the air exchange box 15, fan outlet connects the air inlet of projection cabinet by acoustical panel 7.The tank wall of projection cabinet 1 and air exchange box 15 is to be made by protection sound and thermal insulating material 23, and projection cabinet image is play mouth and is provided with sheet glass 22; Be provided with temperature 12, humidity sensor 13 between medium effeciency filter and the condenser, be provided with temperature 20, humidity sensor 21 between evaporimeter and the blower fan, be used for responding to the work of control constant temperature and humidity control module or stopping, off-premises station connects evaporimeter, the electronics cross valve of controlling in addition Dehumidifying element work in the off-premises station or stopping by copper pipe 11.
The process of circulation of the utility model air is such: produce heat during projector 2 work, allow the absorption of air heat that is closed in the projector cabinet heat up, air after the intensification is under the effect of blower fan power, move to airduct 4, plenum chamber 5, through the medium air filtration of medium effeciency filter 6, be sent to condenser 8, the water vapour that air the is held state that reaches capacity, thus the dry-bulb temperature of air, wet-bulb temperature, dew-point temperature are identical.Temperature sensor A12, humidity sensor A13 are transferred to central processing unit to air condition, central processing unit is according to the Data Control condenser 8 of temperature sensor A12, humidity sensor A13, the temperature of evaporimeter 9, reach the purpose of constant humidity, air moves on, temperature sensor B20, humidity sensor B21 flow through, air condition is transferred to central processing unit, and central processing unit is adjusted the leaving water temperature of off-premises station 17, reaches the purpose of constant temperature.The air of constant temperature and humidity is sent to air exchange box 15, finally enters projector, and the heat of condenser 8, evaporimeter 9 and air exchange is transmitted to outdoor by cooling medium, in the air of discharging.The condensed water that condenser 8, evaporimeter 9 produce is discharged to outdoor by condensate draining pipe 19, air is finished circulation at the inferior projector that enters.
Fig. 2 the utility model projector constant temperature and humidity cabinet dehumidification principle figure.
As shown in Figure 2, under common duty, a of electronics cross valve is communicated with b, and c is communicated with d, and the gas flow of HTHP is through outdoor condenser, at this moment c/d short circuit, without gas flow through indoor condenser without dehumidifying.Except wet condition, a is communicated with c, and b is communicated with d, the high temperature and high pressure gas of compression, enter into indoor condenser by a/c, air is by the condenser heat exchange, and air themperature raises, the water vapour that air the holds state that reaches capacity, thereby the dry-bulb temperature of air, wet-bulb temperature, dew-point temperature is identical, saturated vapor reaches the purpose of dehumidifying by evaporimeter.Then the gas of middle temperature high pressure further cool off to outdoor condenser by b/d, gets back to compressor, finishes circulation.
Thermostatic constant wet control system in the utility model comprises Temperature Humidity Sensor, input/output module, central processing unit (PLC), memory, power supply, control panel.Air in the projector is under the drive of blower fan, Air Flow is to cabinet upper air processing unit, at first pass through plenum chamber, medium effeciency filter, sensor collects humiture information, the information exchange of sensor collection is crossed input/output module data is passed to central processing unit, central processing unit is by the data of sensor, the computing mode point, drive the electronics cross valve, the electronics cross valve is converted to dehumidification mode, the high temperature and high pressure gas of outdoor condenser the inside is delivered to indoor condenser the inside by copper pipe, air is by the condenser heat exchange, air themperature raises, the water vapour that air the holds state that reaches capacity, thereby the dry-bulb temperature of air, wet-bulb temperature, dew-point temperature is identical.Saturated air is sent to evaporimeter, the evaporator cools cooling, temperature moment of air drops to below the dew-point temperature, airborne part water vapour can condense into elutriation and go out, aerial temperature and humidity reduces, reach steady state value, the air of constant temperature and humidity enters muffler under the promotion of blower fan, and airduct is sent into projector and finished circulation.
Cooling cycle system is applied to the exchange heat of projector and outside atmosphere.Air in the projector heats up because of the heat that has absorbed projector, the blower fan that is arranged in the cabinet internal upper part is delivered to hot-air in the evaporimeter of upper end in the cabinet, cooling medium in the cooling tube of hot-air and evaporimeter carries out the heat exchange cooling, the circulation of participation next round, reach the purpose that projector cools and purifies, cooling medium absorbs the heat of projector and evaporates at evaporimeter, compression after high-temperature low-pressure gas after the evaporation is sucked by outdoor compressor by copper pipe, the gas that forms HTHP through compression enters condenser, through condensation the medium liquid that becomes cryogenic high pressure form moist steam after through the expansion valve reducing pressure by regulating flow, enter into evaporimeter, successively circulation.
In the utility model, air in the projector cabinet is under the drive of blower fan, the heat of projector is given cooling medium in the evaporimeter by interior circulating transfer, cooling medium is delivered to heat outdoor by kind of refrigeration cycle, circulation through going round and beginning again, make the projector normal operation, the refrigeration outer circulation adds the operation that internal air circulation has guaranteed projector effectively reliably, compare with traditional air-conditioning system, projector can be enclosed in the cabinet, guaranteed cleaning and the wind speed of working environment, the optimum state of humiture has been avoided the risk of coming because of the environment for use difference band.
Claims (3)
1. digital projector constant temperature and humidity cabinet, consisted of by refrigeration host computer, airtight projector casing and air exchange box, it is characterized in that, digital projector is placed in the projection cabinet, the projection cabinet has image broadcast mouth and is complementary with the projector camera lens, the projector air port is communicated with the air inlet of air exchange box, sets gradually air inlet, plenum chamber, medium effeciency filter, condenser, evaporimeter, blower fan in the air exchange box, and fan outlet connects the air inlet of projection cabinet by acoustical panel.
2. cabinet according to claim 1 is characterized in that: the tank wall of said projection cabinet and air exchange box is to be made by the protection sound and thermal insulating material, and projection cabinet image is play mouth and is provided with sheet glass; Between medium effeciency filter and the condenser, be respectively arranged with temperature and moisture sensors between evaporimeter and the blower fan, be used for the work of induction control constant temperature and humidity control module or stop the electronics cross valve of controlling in addition Dehumidifying element work in the off-premises station or stopping.
3. cabinet according to claim 2, it is characterized in that: system, control circuit is comprised of temperature sensor, humidity sensor, input/output module, memory, central processing system, power module, control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220445622 CN202835573U (en) | 2012-08-23 | 2012-08-23 | Digital projector constant temperature and humidity machine box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220445622 CN202835573U (en) | 2012-08-23 | 2012-08-23 | Digital projector constant temperature and humidity machine box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202835573U true CN202835573U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220445622 Expired - Fee Related CN202835573U (en) | 2012-08-23 | 2012-08-23 | Digital projector constant temperature and humidity machine box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202835573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108543551A (en) * | 2018-04-28 | 2018-09-18 | 东莞市科讯精密仪器有限公司 | A kind of novel constant-temperature constant humidity cabinet |
-
2012
- 2012-08-23 CN CN 201220445622 patent/CN202835573U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108543551A (en) * | 2018-04-28 | 2018-09-18 | 东莞市科讯精密仪器有限公司 | A kind of novel constant-temperature constant humidity cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Hai Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Lv Zhengjun Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20140823 |
|
| EXPY | Termination of patent right or utility model |