CN108459453B - Temperature control system for projector - Google Patents

Temperature control system for projector Download PDF

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Publication number
CN108459453B
CN108459453B CN201810596663.2A CN201810596663A CN108459453B CN 108459453 B CN108459453 B CN 108459453B CN 201810596663 A CN201810596663 A CN 201810596663A CN 108459453 B CN108459453 B CN 108459453B
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Prior art keywords
fan
box body
projector
controller
air
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Active
Application number
CN201810596663.2A
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CN108459453A (en
Inventor
刘慧盼
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Hoten Horal Beijing Technology Co ltd
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Hoten Horal Beijing Technology Co ltd
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Priority to CN201810596663.2A priority Critical patent/CN108459453B/en
Publication of CN108459453A publication Critical patent/CN108459453A/en
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/145Housing details, e.g. position adjustments thereof
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/16Cooling; Preventing overheating
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/54Accessories
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Abstract

The invention relates to the technical field of projector devices, in particular to a temperature control system for a projector. The device comprises a base, a turntable, a driving motor, a bracket, an electric control hydraulic rod and a box body; the turntable is rotatably arranged on the base, and the driving motor is arranged on the base and used for driving the turntable to rotate; the lower end of the bracket is fixedly arranged on the top surface of the turntable, and the upper end of the bracket is hinged with the bottom surface of the box body; the lower end of the electric control hydraulic rod is hinged with the top surface of the rotary table, and the upper end of the electric control hydraulic rod is hinged with the bottom surface of the box body. According to the temperature control system for the projector, provided by the invention, the projection direction of the projector in the temperature control system for the projector can be adjusted through rotation of the turntable and extension and retraction of the electric control hydraulic rod.

Description

Temperature control system for projector
Technical Field
The invention relates to the technical field of projector devices, in particular to a temperature control system for a projector.
Background
The projector is also called as projector, which is a device capable of projecting images or videos onto a curtain, and playing corresponding video signals through different interfaces and connection with computers, VCD, DVD, BD, game machines, DV and the like.
With the progress of projection technology, projectors are increasingly applied to outdoor places such as building projection, wall projection, large commercial squares, large artistic performances and the like, the projectors are outdoor for a long time during projection, the outdoor environments are complex, rainfall, strong wind, dust, high temperature, low temperature and the like can damage the projectors, the projectors are put into a box to prevent rain and wind, the weight of the projectors and the box is heavy, the difficulty in adjusting the projection direction of the projectors in the box is high, and particularly, a large amount of manpower is required to be consumed when a plurality of projectors are synchronously adjusted; meanwhile, the existing box cannot avoid damage to the projector caused by high-temperature and low-temperature environments, the working temperature of the projector is generally 5-35 ℃, and the working state and the service life of the projector can be influenced by overhigh temperature and overlow temperature.
Disclosure of Invention
The invention aims to provide a temperature control system for a projector, which aims to solve the problem that the conventional box body for the projector is inconvenient to adjust the projection direction of the projector in the box body.
The invention aims at realizing the following technical scheme:
a temperature control system for a projector comprises a base, a turntable, a driving motor, a bracket, an electric control hydraulic rod and a box body; the turntable is rotatably arranged on the base, and the driving motor is arranged on the base and used for driving the turntable to rotate; the lower end of the bracket is fixedly arranged on the top surface of the turntable, and the upper end of the bracket is hinged with the bottom surface of the box body; the lower end of the electric control hydraulic rod is hinged with the top surface of the rotary table, and the upper end of the electric control hydraulic rod is hinged with the bottom surface of the box body.
Further, the system also comprises a controller and a display screen; the display screen, the electric control hydraulic rod and the driving motor are all connected with the controller.
Further, a projection port is formed in the box body, and a transparent baffle is arranged on the projection port; a partition board is arranged in the box body, the partition board divides the box body into a containing cavity and a heat exchange cavity, and the projector is arranged in the containing cavity; an air inlet hole and an air outlet hole are formed in the partition plate, a heat accumulator and a first fan are arranged in the heat exchange cavity, and the heat accumulator and the first fan are both positioned between the air inlet hole and the air outlet hole; a first temperature sensor, a heating device and a refrigerating device are arranged in the accommodating cavity; the first fan, the first temperature sensor, the heating device and the refrigerating device are all connected with the controller.
Further, the heat insulation layer is wrapped outside the box body.
Further, the insulating layer is made of aerogel.
Further, a second temperature sensor is arranged on the air outlet hole and used for monitoring the air outlet temperature of the air outlet hole, and the second temperature sensor is connected with the controller.
Further, a second fan and an air knife are arranged on the outer side of the box body, and a raindrop sensor is arranged on the inner side of the transparent baffle; the second fan is communicated with the air knife through a pipeline, and the air outlet of the air knife is opposite to the transparent baffle; the second fan and the raindrop sensor are connected with the controller.
Further, the transparent baffle is made of acrylic materials.
Further, a filter body is arranged in the heat exchange cavity and is positioned between the air inlet hole and the air outlet hole.
Further, the heat accumulator is a honeycomb ceramic heat accumulator.
Compared with the prior art, the invention has the following advantages:
1. the invention relates to a temperature control system for a projector, which comprises a base, a turntable, a driving motor, a bracket, an electric control hydraulic rod and a box body, wherein the turntable is arranged on the base; the turntable is rotatably arranged on the base, and the driving motor is arranged on the base and used for driving the turntable to rotate; the lower end of the bracket is fixedly arranged on the top surface of the turntable, and the upper end of the bracket is hinged with the bottom surface of the box body; the lower end of the electric control hydraulic rod is hinged with the top surface of the rotary table, and the upper end of the electric control hydraulic rod is hinged with the bottom surface of the box body; the driving motor drives the turntable to rotate, so as to drive the box body to rotate horizontally, and the electric control hydraulic rod stretches and contracts to drive the box body to rotate in the vertical direction; the electric adjustment of the projection direction of the projector in the projector temperature control box is realized.
2. The temperature control system for the projector also comprises a controller and a display screen; the display screen, the electric control hydraulic rod and the driving motor are all connected with the controller; the controller can control the electric control hydraulic rod and the driving motor to act through the display screen, so that control is more accurate, and synchronous adjustment of the temperature control systems for the projectors can be realized by inputting the same instruction to the display screens of the temperature control systems for the projectors.
3. The box body is provided with a projection port, and a transparent baffle is arranged on the projection port; a partition board is arranged in the box body, the partition board divides the box body into a containing cavity and a heat exchange cavity, and the projector is arranged in the containing cavity; an air inlet hole and an air outlet hole are formed in the partition plate, a heat accumulator and a first fan are arranged in the heat exchange cavity, and the heat accumulator and the first fan are both positioned between the air inlet hole and the air outlet hole; a first temperature sensor, a heating device and a refrigerating device are arranged in the accommodating cavity; the first fan, the first temperature sensor, the heating device and the refrigerating device are all connected with the controller; the first temperature sensor monitors the temperature in the accommodating cavity in real time and transmits signals to the controller, the controller analyzes the temperature signals, if the temperature is higher than a set threshold value, an instruction is issued to the refrigerating device and the first fan, the refrigerating device is started to refrigerate, and meanwhile the first fan drives air to pass through the heat accumulator, the heat accumulator absorbs heat and stores heat, and the air temperature is reduced; if the temperature is lower than the set threshold value, an instruction is issued to the heating device and the first fan, the heating device is started to heat, and meanwhile, the first fan drives air to pass through the heat accumulator, the heat accumulator releases heat, and the air temperature is increased; when the temperature reaches the design range, the controller turns off the heating device/the refrigerating device and the first fan; the automatic control of the temperature of the box body for the projector is realized, meanwhile, when the temperature in the box body is high, the heat accumulator absorbs heat, when the temperature in the box body is low, the heat accumulator releases heat, the heat is recycled, the heat waste is reduced, the energy consumption is reduced, and the effect is particularly obvious in the environment with larger day-night temperature difference.
Drawings
FIG. 1 is a block diagram of a temperature control system for a projector according to the present invention;
FIG. 2 is a block diagram (cross-sectional view) of the case of the present invention;
FIG. 3 is an electrical connection diagram of the present invention;
in the figure: 1-box, 101-projector, 102-transparent baffle, 103-projection port, 104-heat insulation layer, 105-baffle, 106-inlet port, 107-first fan, 108-filter, 109-heat accumulator, 110-heat exchange cavity, 111-air outlet port, 112-second temperature sensor, 113-heating device, 114-cooling device, 115-first temperature sensor, 116-holding cavity, 117-second fan, 118-raindrop sensor, 119-air knife, 2-controller, 3-display screen, 4-bracket, 5-electric control hydraulic rod, 6-turntable, 7-driving motor, 8-base.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, a temperature control system for a projector includes a base 8, a turntable 6, a driving motor 7, a bracket 4, an electric control hydraulic lever 5, and a case 1; the turntable is rotatably arranged on the base, and the driving motor is arranged on the base and used for driving the turntable to rotate; the lower end of the bracket is fixedly arranged on the top surface of the turntable, and the upper end of the bracket is hinged with the bottom surface of the box body; the lower end of the electric control hydraulic rod is hinged with the top surface of the rotary table, and the upper end of the electric control hydraulic rod is hinged with the bottom surface of the box body; the driving motor drives the turntable to rotate, so as to drive the box body to rotate horizontally, and the electric control hydraulic rod stretches and contracts to drive the box body to rotate in the vertical direction; the electric adjustment of the projection direction of the projector in the projector temperature control box is realized.
Referring to fig. 1 and 2, the invention further comprises a controller 2 and a display screen 3; the display screen, the electric control hydraulic rod and the driving motor are all connected with the controller; the controller can control the electric control hydraulic rod and the driving motor to act through the display screen, so that control is more accurate, and synchronous adjustment of the temperature control systems for the projectors can be realized by inputting the same instruction to the display screens of the temperature control systems for the projectors.
Referring to fig. 1, 2 and 3, a projection port 103 is formed on the box body, and a transparent baffle 102 is installed on the projection port; a partition 105 is arranged in the box body, the partition divides the box body into a containing cavity 116 and a heat exchange cavity 110, and the projector 101 is arranged in the containing cavity; an air inlet hole 106 and an air outlet hole 111 are formed in the partition plate, a heat accumulator 109 and a first fan 107 are arranged in the heat exchange cavity, and the heat accumulator and the first fan are both positioned between the air inlet hole and the air outlet hole; a first temperature sensor 115, a heating device 113 and a refrigerating device 114 are arranged in the accommodating cavity; the first fan, the first temperature sensor, the heating device and the refrigerating device are all connected with the controller; the first temperature sensor monitors the temperature in the accommodating cavity in real time and transmits signals to the controller, the controller analyzes the temperature signals, if the temperature is higher than a set threshold value, an instruction is issued to the refrigerating device and the first fan, the refrigerating device is started to refrigerate, and meanwhile the first fan drives air to pass through the heat accumulator, the heat accumulator absorbs heat and stores heat, and the air temperature is reduced; if the temperature is lower than the set threshold value, an instruction is issued to the heating device and the first fan, the heating device is started to heat, and meanwhile, the first fan drives air to pass through the heat accumulator, the heat accumulator releases heat, and the air temperature is increased; when the temperature reaches the design range, the controller turns off the heating device/the refrigerating device and the first fan; the automatic control of the temperature of the box body for the projector is realized, meanwhile, when the temperature in the box body is high, the heat accumulator absorbs heat, when the temperature in the box body is low, the heat accumulator releases heat, the heat is recycled, the heat waste is reduced, the energy consumption is reduced, and the effect is particularly obvious in the environment with larger day-night temperature difference.
Referring to fig. 2, the outside of the box body is wrapped with a heat insulation layer 104; the heat exchange inside and outside the box can be reduced by the heat insulating layer, if the temperature inside the box is lower than a set threshold value, and the temperature outside the box is lower than the temperature inside the box, if the heat exchange inside and outside the box at the moment can further reduce the temperature inside the box, therefore, the heat loss can be reduced by the heat insulating layer, the energy consumption is reduced, the cold energy loss can be reduced by the heat insulating layer, and the energy consumption is reduced by the heat insulating layer.
Referring to fig. 2, the insulation layer of the present invention is made of aerogel; aerogel is the solid material with the lowest thermal conductivity at present, has good heat insulation performance, light weight and good elasticity.
Referring to fig. 1, 2 and 3, a second temperature sensor 112 is arranged on the air outlet hole and is used for monitoring the air outlet temperature of the air outlet hole, and the second temperature sensor is connected with the controller; when the temperature difference between the first temperature sensor and the second temperature sensor received by the controller is smaller than a set value, the heat accumulator is proved to absorb/release heat completely, and the first fan can be operated in a reverse mode, so that the controller turns off the first fan at the moment.
Referring to fig. 1, 2 and 3, a second fan 117 and an air knife 119 are arranged on the outer side of the box body, and a raindrop sensor 118 is arranged on the inner side of the transparent baffle; the second fan is communicated with the air knife through a pipeline, and the air outlet of the air knife is opposite to the transparent baffle; the second fan and the raindrop sensor are connected with the controller; when the raindrop sensor detects that water drops exist on the transparent baffle, a signal is transmitted to the controller, the controller issues a command to the second fan, the second fan is started, compressed air is introduced into the air knife by the second fan, after entering the air knife, the compressed air is blown out at a high speed by an air flow sheet with the thickness of only 0.05 mm, and through the Cohn effect principle, a thin high-strength and atmospheric air impact wind is formed, so that the water drops on the transparent baffle are blown away, and the automatic cleaning of the water drops on the transparent baffle is realized.
Referring to fig. 2, the transparent baffle plate of the present invention is made of acryl material; the transparent baffle plate made of acrylic material has crystal-like transparency, light transmittance is above 92%, and light is soft and visual clear; in addition, it is not as brittle as glass, and even if broken, it does not form sharp fragments as glass does.
Referring to fig. 2, a filter body 108 is arranged in the heat exchange cavity, and the filter body is positioned between the air inlet hole and the air outlet hole; when air passes through the heat exchange cavity, the filter body can filter dust in the air, so that damage of the dust to the projector is reduced.
Referring to fig. 2, the heat accumulator according to the present invention is a honeycomb ceramic heat accumulator; the honeycomb ceramic heat accumulator has the characteristics of low thermal expansion, large specific heat capacity, large specific surface area, small pressure drop, small thermal resistance, good heat conduction performance, good heat shock resistance and the like.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (5)

1. A temperature control system for a projector, characterized in that: comprises a base, a turntable, a driving motor, a bracket, an electric control hydraulic rod and a box body; the turntable is rotatably arranged on the base, and the driving motor is arranged on the base and used for driving the turntable to rotate; the lower end of the bracket is fixedly arranged on the top surface of the turntable, and the upper end of the bracket is hinged with the bottom surface of the box body; the lower end of the electric control hydraulic rod is hinged with the top surface of the rotary table, and the upper end of the electric control hydraulic rod is hinged with the bottom surface of the box body; the system also comprises a controller and a display screen; the display screen, the electric control hydraulic rod and the driving motor are all connected with the controller; a projection port is formed in the box body, and a transparent baffle is arranged on the projection port; a partition board is arranged in the box body, the partition board divides the box body into a containing cavity and a heat exchange cavity, and the projector is arranged in the containing cavity; an air inlet hole and an air outlet hole are formed in the partition plate, a heat accumulator and a first fan are arranged in the heat exchange cavity, and the heat accumulator and the first fan are both positioned between the air inlet hole and the air outlet hole; a first temperature sensor, a heating device and a refrigerating device are arranged in the accommodating cavity; the first fan, the first temperature sensor, the heating device and the refrigerating device are all connected with the controller;
a second fan and an air knife are arranged on the outer side of the box body, and a raindrop sensor is arranged on the inner side of the transparent baffle; the second fan is communicated with the air knife through a pipeline, and the air outlet of the air knife is opposite to the transparent baffle; the second fan and the raindrop sensor are connected with the controller;
a filter body is arranged in the heat exchange cavity and is positioned between the air inlet hole and the air outlet hole;
the transparent baffle is made of acrylic material, and the light transmittance is more than 92%;
when the raindrop sensor detects that water drops exist on the transparent baffle, a signal is transmitted to the controller, the controller issues an instruction to the second fan, the second fan is started, compressed air is introduced into the air knife by the second fan, and after entering the air knife, the compressed air is blown out at a high speed by an air flow sheet with the thickness of one side of 0.05 mm.
2. The temperature control system for a projector according to claim 1, wherein: and the outside of the box body is wrapped with a heat insulation layer.
3. The temperature control system for a projector according to claim 2, wherein: the insulating layer is made of aerogel.
4. A temperature control system for a projector according to claim 3, wherein: the air outlet hole is provided with a second temperature sensor for monitoring the air outlet temperature of the air outlet hole, and the second temperature sensor is connected with the controller.
5. The temperature control system for a projector according to any one of claims 3 to 4, characterized in that: the heat accumulator is a honeycomb ceramic heat accumulator.
CN201810596663.2A 2018-06-11 2018-06-11 Temperature control system for projector Active CN108459453B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810596663.2A CN108459453B (en) 2018-06-11 2018-06-11 Temperature control system for projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810596663.2A CN108459453B (en) 2018-06-11 2018-06-11 Temperature control system for projector

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CN108459453A CN108459453A (en) 2018-08-28
CN108459453B true CN108459453B (en) 2024-02-06

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08316676A (en) * 1995-05-15 1996-11-29 Hitachi Ltd Electronic equipment and case structure and cooling unit thereof
JPH1082109A (en) * 1996-09-06 1998-03-31 Kubota Corp Heat storage facility and control method thereof
JP2002287645A (en) * 2001-03-27 2002-10-04 Toto Ltd Video display device
CN101439706A (en) * 2007-12-12 2009-05-27 东风汽车有限公司 Water removal device for vehicle rearview mirror and control method
CN205424316U (en) * 2016-03-31 2016-08-03 孙天敏 Projecting apparatus device for multimedia classroom
KR101862129B1 (en) * 2018-02-13 2018-05-30 어울림영상(주) Temperature control system including case for housing electronic device
CN208459756U (en) * 2018-06-11 2019-02-01 浩腾和润(北京)科技有限公司 A kind of projector temperature control system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08316676A (en) * 1995-05-15 1996-11-29 Hitachi Ltd Electronic equipment and case structure and cooling unit thereof
JPH1082109A (en) * 1996-09-06 1998-03-31 Kubota Corp Heat storage facility and control method thereof
JP2002287645A (en) * 2001-03-27 2002-10-04 Toto Ltd Video display device
CN101439706A (en) * 2007-12-12 2009-05-27 东风汽车有限公司 Water removal device for vehicle rearview mirror and control method
CN205424316U (en) * 2016-03-31 2016-08-03 孙天敏 Projecting apparatus device for multimedia classroom
KR101862129B1 (en) * 2018-02-13 2018-05-30 어울림영상(주) Temperature control system including case for housing electronic device
CN208459756U (en) * 2018-06-11 2019-02-01 浩腾和润(北京)科技有限公司 A kind of projector temperature control system

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