CN113194684A - Heating and cooling device applied to sealed cavity - Google Patents
Heating and cooling device applied to sealed cavity Download PDFInfo
- Publication number
- CN113194684A CN113194684A CN202110467859.3A CN202110467859A CN113194684A CN 113194684 A CN113194684 A CN 113194684A CN 202110467859 A CN202110467859 A CN 202110467859A CN 113194684 A CN113194684 A CN 113194684A
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- China
- Prior art keywords
- sealed cavity
- fan
- cooling
- channel
- air channel
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0033—Heating devices using lamps
- H05B3/0038—Heating devices using lamps for industrial applications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to a heating and cooling device applied to a sealed cavity, which comprises a fan, a cooling channel, a first air channel, a second air channel and a light source for heating, wherein the fan, the cooling channel, the first air channel, the second air channel and the light source are all arranged in the sealed cavity, on one hand, the fan drives gas in the sealed cavity to be cooled through the first air channel and then return to the sealed cavity through the second air channel, the cooled gas naturally sinks under the action of gravity, a uniform wind field can be formed in the sealed cavity, the gas in the sealed cavity is cooled, the uniformity of the temperature in the sealed cavity is ensured, the wall surface of the sealed cavity can be prevented from being used for heat dissipation, the deformation caused by the nonuniform heat dissipation temperature of the wall surface can be effectively prevented, and on the other hand, the fan, the light source, the first air channel, the second air channel and the cooling channel are integrated, and the installation space is saved.
Description
Technical Field
The invention relates to the technical field of temperature control, in particular to a heating and cooling device applied to a sealed cavity.
Background
In some special fields such as the aerospace field and the detection equipment field, the sealed cavity can be used, and the sealed cavity needs to meet the requirement of temperature uniformity while meeting the requirement of certain sealing property. At present, a light source for generating heat and two fans are often installed in a sealed cavity, wherein one fan drives gas in the sealed cavity to flow through the surface of the light source for heat dissipation, and the other fan stirs the gas in the sealed cavity to ensure the uniformity of the temperature in the sealed cavity.
However, when the sealed cavity is cooled, the wall surface of the sealed cavity is often used as a heat exchange surface, and heat exchange is performed by utilizing the air outside the sealed cavity and the heat exchange of the wall surface, so that the heat exchange efficiency is low, the internal temperature of the sealed cavity is not uniform easily, and when the light source generates heat to make the temperature greater, the uniformity of the internal temperature of the sealed cavity is difficult to guarantee, and the gas in the sealed cavity cannot be cooled in time.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a heating and cooling device applied to a sealed cavity.
The technical scheme of the heating and cooling device applied to the sealed cavity is as follows:
the cooling device comprises a fan, a cooling channel, a first air channel, a second air channel and a light source for heating, wherein the fan, the cooling channel, the first air channel and the second air channel are all arranged in a sealed cavity;
the light source is arranged under the fan, the first air channel and the second air channel are arranged on the periphery of the fan, the second air channel is located above the first air channel, and the cooling channel is arranged between the first air channel and the second air channel.
The heating and cooling device applied to the sealed cavity has the following beneficial effects:
on the one hand, the gas in the fan drive seal chamber is through first wind channel after cooling channel cools off, return to in the seal chamber through the second wind channel, the gas after the cooling sinks naturally under the effect of gravity, can form even wind field in the seal chamber, make seal chamber's gas all obtain the cooling, guarantee the homogeneity of the temperature in the seal chamber, the wall that can also avoid using airtight cavity dispels the heat, can effectively prevent the deformation that the inhomogeneous temperature of wall heat dissipation leads to, on the other hand, with the fan, the light source, first wind channel, second wind channel and cooling channel integrate, practice thrift installation space.
On the basis of the scheme, the heating and cooling device applied to the sealed cavity can be further improved as follows.
The cooling device further comprises a gas-liquid heat exchanger provided with the cooling channel and a cold source arranged outside the sealed cavity, wherein the cold source is used for circulating a cooling medium in the gas-liquid heat exchanger, and the gas-liquid heat exchanger is arranged between the fan and the second air channel.
The beneficial effect of adopting the further scheme is that: the cold source circulates a cooling medium in the gas-liquid heat exchanger, so that the temperature in the sealed cavity can be reduced to a lower temperature, and the cooling effect is good.
Furthermore, a pipeline is connected between the cold source and the gas-liquid heat exchanger, and a cooling medium liquid supply pipe and a cable for power supply and communication are arranged in the pipeline.
Further, the gas-liquid heat exchanger is fixed between the fan and the second air duct in a threaded connection mode or a welding mode.
Further, the material of the pipeline is metal or rubber.
Further, the fan is an axial flow fan or a centrifugal fan.
Further, the cooling medium is water and ethylene glycol.
Drawings
Fig. 1 is a schematic structural diagram of a heating and cooling device applied to a sealed cavity according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an integrated part in a sealed cavity;
Detailed Description
As shown in fig. 1 and fig. 2, a heating and cooling device applied to a sealed cavity 1 according to an embodiment of the present invention includes a fan 7, a cooling channel, a first air duct 6, a second air duct 10, and a light source 5 for heating, all of which are disposed in the sealed cavity 1;
the light source 5 is arranged under the fan 7, the first air duct 6 and the second air duct 10 are both arranged at the periphery of the fan 7, the second air duct 10 is positioned above the first air duct 6, and the cooling channel is arranged between the first air duct 6 and the second air duct 10.
Wherein the sealed chamber 1 can be understood as: a plurality of metal plates or a plurality of plastic plates and the like are surrounded to form a cavity with certain sealing performance, and a refrigerator, a heating furnace and the like can also be regarded as a sealed cavity 1;
wherein, can select powerful light source 5 to heat, first wind channel 6 and second wind channel 10 all are equipped with the grid that is used for business turn over gas, and wherein, fan 7 is axial fan 7 or centrifugal fan 7
On one hand, the fan 7 drives the air in the sealed cavity 1 to be cooled through the first air channel 6 and the cooling channel, and then returns to the sealed cavity 1 through the second air channel 10, which can be concretely understood as that the fan 7 drives the air in the sealed cavity 1 to enter the cooling channel through the grid of the first air channel 6, and the air entering the cooling channel enters the second air channel 10 through the grid of the second air channel 10 after being cooled through the cooling channel, and returns to the sealed cavity 1 through the grid of the second air channel 10; gas after the cooling sinks naturally under the effect of gravity, can form even wind field in seal chamber 1, make seal chamber 1's gas all obtain the cooling, guarantee the homogeneity of the temperature in seal chamber 1, can also avoid using the wall of airtight cavity to dispel the heat, can effectively prevent the deformation that the wall radiating temperature is inhomogeneous to lead to, on the other hand integrates fan 7, light source 5, first wind channel 6, second wind channel 10 and cooling channel, practices thrift installation space.
Wherein, the cooling channel is provided in two ways, specifically:
1) the cooling device also comprises a gas-liquid heat exchanger 8 provided with the cooling channel and a cold source 2 arranged outside the sealed cavity 1, wherein the cold source 2 is used for circulating a cooling medium in the gas-liquid heat exchanger 8, and the gas-liquid heat exchanger 8 is arranged between the fan 7 and the second air duct 10, namely, the cooling channel is provided through the gas-liquid heat exchanger 8;
it can be understood that the cold source 2 is often provided with a processor for controlling the flow rate of the cooling medium and detecting the temperature of the cooling medium, and when the temperature sensor for collecting the temperature is installed in the sealed cavity 1, the processor can receive a signal returned by the temperature sensor, that is, the temperature of the gas in the sealed cavity 1 is obtained in real time, and then parameters such as the flow rate of the cooling medium are controlled to control the temperature of the gas in the sealed cavity 1, the cold source 2 can be understood as a refrigerator, and the cooling medium is water or ethylene glycol, but is not limited to these two types; the cold source 2 circulates a cooling medium in the gas-liquid heat exchanger 8, so that the temperature in the sealed cavity 1 can be reduced to a lower temperature, and the cooling effect is good.
2) Providing a cooling channel through a semiconductor chilling plate, in particular: after the semiconductor refrigerating sheet is electrified, one side of the semiconductor refrigerating sheet is refrigerated to provide a cooling channel, the other side of the semiconductor refrigerating sheet dissipates heat, the sealed cavity surrounded by the plastic plate is arranged on the heat dissipating side, the ventilation opening is formed in the sealed cavity, a circulating air pump such as an air circulating pump is arranged outside the sealed cavity 1, heat in the sealed cavity is extracted along with air, normal-temperature outside air is supplemented into the sealed cavity, and the cooling function of the cooling channel can be realized.
Preferably, in the above technical solution, a pipeline 3 is connected between the cold source 2 and the gas-liquid heat exchanger 8, a cooling medium liquid supply pipe and a cable for power supply and communication are arranged in the pipeline 3, specifically:
the gas-liquid heat exchanger 8 is provided with an interface 9, the interface 9 comprises a pipe orifice for connecting a cooling medium liquid supply pipe, a power supply interface and a cable interface for connecting cables for power supply and communication, and at the moment, a processor of the cold source 2 can receive data returned by the gas-liquid heat exchanger 8 through the cables and can send instructions to the gas-liquid heat exchanger 8;
it is understood that a pipe orifice for connecting a cooling medium liquid supply pipe, a power supply interface for supplying power and a cable interface for communication may be respectively provided on the gas-liquid heat exchanger 8, wherein the material of the pipeline 3 is metal or rubber.
Preferably, in the above technical solution, the gas-liquid heat exchanger 8 is fixed between the fan 7 and the second air duct 10 by a threaded connection manner or a welding manner, and the gas-liquid heat exchanger 8 may also be fixed between the fan 7 and the second air duct 10 by an adhesion manner.
A heating and cooling device applied to the sealed chamber 1 of the present application is illustrated in more detail by the following one embodiment, in particular:
as shown in fig. 1, the device comprises a fan 7, a first air duct 6, a second air duct 10, a light source 5 for heating, a gas-liquid heat exchanger 8 with a cooling channel, a cold source 2, and a pipeline 3, wherein the light source 5 is arranged below the fan 7, the first air duct 6 and the second air duct 10 are both arranged at the periphery of the fan 7, the gas-liquid heat exchanger 8 is arranged between the fan 7 and the second air duct 10, and the second air duct 10 is located above the first air duct 6, the cold source 2 is disposed outside the sealed cavity 1, and specifically can be disposed on the outer wall surface of the sealed cavity 1, the pipeline 3 is connected between the cold source 2 and the gas-liquid heat exchanger 8, the pipeline 3 is provided with a cooling medium liquid supply pipe and a cable for power supply and communication, it can be understood that, a channel adapted to the pipeline 3 is formed in the second air duct 10 to ensure the connection between the pipeline 3 and the interface 9.
Then:
1) after being cooled by a cooling channel provided by the gas-liquid heat exchanger 8 through the first air channel 6, the air in the sealed cavity 1 driven by the fan 7 returns to the sealed cavity 1 through the second air channel 10, which can be concretely understood as that the air in the sealed cavity 1 driven by the fan 7 enters the cooling channel provided by the gas-liquid heat exchanger 8 through a grid of the first air channel 6, and after being cooled by the cooling channel, the air passing through the cooling channel provided by the gas-liquid heat exchanger 8 enters the second air channel 10 through a grid of the second air channel 10 and returns to the sealed cavity 1 through a grid of the second air channel 10; the cooled gas naturally sinks under the action of gravity, and a uniform wind field can be formed in the sealed cavity 1, so that the gas in the sealed cavity 1 is cooled, the uniformity of the temperature in the sealed cavity 1 is ensured, the wall surface of the sealed cavity can be prevented from being used for heat dissipation, and the deformation caused by the nonuniform heat dissipation temperature of the wall surface can be effectively prevented;
2) the cold source 2 circulates a cooling medium in the gas-liquid heat exchanger 8, so that the temperature in the sealed cavity 1 can be reduced to a lower temperature, and the cooling effect is good.
3) The fan 7, the light source 5, the first air duct 6, the second air duct 10 and the cooling channel are integrated, and the installation space is saved.
Wherein, still including installation fixing device 4, installation fixing device 4 is used for realizing the fixed connection between second wind channel 10 and seal chamber 1's the wall, and then is applied to seal chamber 1's heating and cooling device fixed connection of this application in seal chamber 1, and installation fixing device 4 specifically can be following form:
1) the mounting and fixing device 4 is a bolt and a thread, a threaded hole is formed in the upper surface of the second air duct 10, an adaptive opening is formed in the corresponding position of the wall surface of the sealed cavity 1, and then the second air duct 10 is fixedly connected with the wall surface of the sealed cavity 1 through the adaptive bolt, namely the second air duct 10 is fixedly connected with the wall surface of the sealed cavity 1 through a thread fixing mode;
2) the mounting and fixing device 4 is a magnet, and the second air duct 10 is fixedly connected with the wall surface of the sealed cavity 1 through the attraction force between the magnets;
3) the second air duct 10 is fixedly connected to the wall of the sealed chamber 1 by some connecting members currently available on the market.
The invention relates to a heating and cooling device applied to a sealed cavity 1, which can be understood as an integrated light source 5 and environment cooling equipment applied to the sealed cavity 1, in particular to the technical fields of aerospace, pressure vessels, environment control, refrigeration equipment and the like;
the invention relates to a heating and cooling device applied to a sealed cavity 1, which comprises: the device comprises a cold source 2, a pipeline 3, a mounting and fixing device 4, a high-power light source, namely a light source 5 for heating, an air inlet channel, namely a first air channel 6, a fan 7, a gas-liquid heat exchanger 8, a connector 9, an air outlet channel, namely a second air channel 10 and the like.
As shown in fig. 2, the light source 5, the first air duct 6, the fan 7, the gas-liquid heat exchanger 8, the interface 9 and the second air duct 10 are integrated to obtain an integrated part in the sealed cavity, so that the installation is more convenient;
the refrigeration structure includes: the cold source 2 which is arranged outside the sealed cavity 1 and can provide cooling medium can drive the cooling medium to be supplied to the gas-liquid heat exchanger 8 inside the sealed cavity 1 through the pipeline 3, and the temperature of the cooling medium is ensured to be lower than the required refrigeration temperature;
the heating and cooling device applied to the sealed cavity 1 has the beneficial effect that the installation space can be saved by the integrated part in the sealed cavity which is designed in an integrated manner. By cooling the cooling medium, lower temperature air can be provided to cool the temperature of the environment of the sealed cavity 1 and the temperature of the light source 5, thereby preventing the light source 5 from being damaged by overheating and controlling the temperature in the sealed cavity 1 to be lower;
and because fan 7 installs in the nearer position of light source 5, the amount of wind of income wind gap promptly first wind channel 6 is great, can provide better cooling effect for light source 5 and for seal chamber 1. And this application does not use the wall of airtight cavity to dispel the heat, can effectively prevent because of the deformation that the inhomogeneous leads to of wall radiating temperature. According to the invention, the air inlet, namely the first air duct 6 is positioned below, the air outlet, namely the second air duct 10 is positioned above, the air outlet direction is parallel to the upper surface of the sealed cavity 1, and cooled air naturally sinks under the action of gravity to form a uniform air field in the sealed cavity 1, so that ambient air in the sealed cavity 1 is cooled, and the temperature uniformity is ensured. The light source 5 and the environment cooling device are integrated together, so that installation interfaces are reduced, a certain volume can be saved, more areas are reserved for the sealed cavity 1 to carry out corresponding work such as test tests, and the like.
In the present invention, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A heating and cooling device applied to a sealed cavity is characterized by comprising a fan, a cooling channel, a first air channel, a second air channel and a light source for heating, wherein the fan, the cooling channel, the first air channel and the second air channel are all arranged in the sealed cavity;
the light source is arranged under the fan, the first air channel and the second air channel are arranged on the periphery of the fan, the second air channel is located above the first air channel, and the cooling channel is arranged between the first air channel and the second air channel.
2. The heating and cooling device applied to the sealed cavity as claimed in claim 1, further comprising a gas-liquid heat exchanger provided with the cooling channel, and a cold source arranged outside the sealed cavity, wherein the cold source is used for circulating a cooling medium in the gas-liquid heat exchanger, and the gas-liquid heat exchanger is arranged between the fan and the second air duct.
3. The heating and cooling device applied to the sealed cavity as claimed in claim 2, wherein a pipeline is connected between the cold source and the gas-liquid heat exchanger, and a cooling medium liquid supply pipe and a cable for power supply and communication are arranged in the pipeline.
4. The heating and cooling device applied to the sealed cavity as claimed in claim 2 or 3, wherein the gas-liquid heat exchanger is fixed between the fan and the second air duct by a threaded connection manner or a welding manner.
5. The heating and cooling device applied to the sealed cavity as claimed in claim 3, wherein the material of the pipeline is metal or rubber.
6. The heating and cooling device applied to the sealed cavity according to any one of claims 1 to 3, wherein the fan is an axial fan or a centrifugal fan.
7. A heating and cooling device applied to a sealed cavity as claimed in claim 2 or 3, wherein the cooling medium is water and glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110467859.3A CN113194684A (en) | 2021-04-28 | 2021-04-28 | Heating and cooling device applied to sealed cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110467859.3A CN113194684A (en) | 2021-04-28 | 2021-04-28 | Heating and cooling device applied to sealed cavity |
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| CN113194684A true CN113194684A (en) | 2021-07-30 |
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| CN202110467859.3A Pending CN113194684A (en) | 2021-04-28 | 2021-04-28 | Heating and cooling device applied to sealed cavity |
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Application publication date: 20210730 |