CN217288444U - High-uniformity windless environment test box structure - Google Patents
High-uniformity windless environment test box structure Download PDFInfo
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- CN217288444U CN217288444U CN202123372220.1U CN202123372220U CN217288444U CN 217288444 U CN217288444 U CN 217288444U CN 202123372220 U CN202123372220 U CN 202123372220U CN 217288444 U CN217288444 U CN 217288444U
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- test box
- heater
- experiment cabin
- windless
- box main
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/54—Free-cooling systems
Abstract
The utility model provides a high degree of consistency windless environmental test case structure, including a test box main part, be equipped with an experiment cabin in the test box main part, and be equipped with the circulation wind channel between experiment cabin and test box main part, the circulation wind channel encircles the experiment cabin setting, the utility model discloses to the not enough of current environmental test case structure, provide a high degree of consistency windless environmental test case structure, through configuration circulation wind channel outside the experiment cabin, make evaporimeter and heater and circulation air in the circulation wind channel carry out the heat exchange, the circulation air carries out even convection current heat transfer with the experiment cabin wall again to improve the temperature degree of consistency in the experiment cabin. In addition, the surface temperature of the heater is reduced through sufficient heat convection with circulating air, the problem of incomplete evaporation of a refrigerant in the evaporator of the conventional windless environment test box is solved, and therefore the quality and the reliability of the heater and the refrigerating system are improved.
Description
Technical Field
The utility model relates to a windless environmental test case technical field, concretely relates to high degree of consistency windless environmental test case structure.
Background
A windless environmental test box structure is applied to environmental test design and mainly aims at an environmental test box which requires windless testing and has higher requirement on uniformity.
In order to quickly respond to temperature change and control in an experimental cabin and improve temperature uniformity, an environmental test chamber in the market at present is generally provided with an air conditioning chamber, and a heater, a humidifier and an evaporator are arranged inside the air conditioning chamber. The air flow, the heat exchange and the water vapor exchange between the experiment chamber and the air conditioning box are realized by the driving of the fan. The structure has the characteristic that air in the box flows all the time, and the structure cannot be used on certain products requiring no wind speed test. In addition, there is a windless structure, evaporimeter and heater hug closely in the inner box outside, pass to the inner box structure through heat-conduction mode on, in the air of heat transfer incasement is passed to the mode of rethread thermal radiation, the arrangement of this kind of mode evaporimeter and heater is difficult to evenly, influence the temperature uniformity of the air in the laboratory cabin, and there is great thermal contact resistance between evaporimeter and heater and the inner box structure, make heater and evaporimeter heat transfer obstructed, lead to heater surface temperature too high, the evaporation of the refrigerant is incomplete in the evaporimeter, and then lead to the compressor to damage
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a high degree of consistency windless environmental test case structure.
The technical scheme of the utility model as follows:
a high uniformity windless environmental test chamber structure comprising:
the experimental box comprises a test box main body, wherein an experimental cabin is arranged in the test box main body, a circulating air channel is arranged between the experimental cabin and the test box main body, and the circulating air channel is arranged around the experimental cabin.
The utility model discloses in, still be equipped with several circulating fan in the test box main part, circulating fan with the circulation wind channel intercommunication to make the inside air circulation motion in circulation wind channel.
In the present invention, an evaporator and a heater are disposed inside the circulation duct.
Further, the circulating fan is matched with the evaporator and the heater.
The utility model discloses in, experiment cabin casing adopts the metal that has high thermal conductivity to make.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses not enough to current environmental test case structure provides a high degree of consistency windless environmental test case structure, through dispose the circulation wind channel outside the experiment cabin, makes evaporimeter and heater and circulation air in the circulation wind channel carry out the heat exchange, and the circulation air carries out even convection current heat transfer with experiment cabin wall again to improve the temperature degree of consistency in the experiment cabin. In addition, the surface temperature of the heater is reduced through sufficient heat convection with circulating air, the problem of incomplete evaporation of a refrigerant in the evaporator of the conventional windless environment test box is solved, and therefore the quality and the reliability of the heater and the refrigerating system are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is the utility model provides a high degree of consistency windless environmental test case structure.
The reference numerals are explained below:
1. an experiment cabin; 2. a circulating air duct; 3. a circulating fan; 4. a heater; 5. an evaporator.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the components or elements referred to must have particular orientations, be constructed and operated in particular orientations, and therefore, are not to be construed as limiting the present invention.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical solution of the present invention, the following description is made by using specific examples.
Examples
Referring to fig. 1, the present embodiment provides a structure of a windless environmental test chamber with high uniformity, including:
the test box comprises a test box main body, wherein an experiment cabin 1 is arranged in the test box main body, a circulating air channel 2 is arranged between the experiment cabin 1 and the test box main body, and the circulating air channel 2 is arranged around the experiment cabin 1.
In this embodiment, the test box main body is further provided with a plurality of circulating fans 3, and the circulating fans 3 are communicated with the circulating air duct 2 so as to enable air inside the circulating air duct 2 to move circularly.
In the present embodiment, an evaporator 4 and a heater 5 are disposed inside the circulating air duct 2.
Further, the circulation fan 3 is coupled to the evaporator 4 and the heater 5.
In this example, the housing of the test chamber 1 is made of a metal with a high thermal conductivity.
The working principle is as follows:
the air in the circulating air duct 2 is driven by the circulating fan 3 to continuously circulate, and is subjected to sufficient heat exchange with the heater 4 and the evaporator 5, and the air in the circulating air duct 2 is cooled, heated and kept at a constant temperature as required through PID (proportion integration differentiation) regulation of an external controller. The air temperature in the circulating air duct 2 is regulated and controlled and then exchanges heat with the shell of the experiment chamber 1, and the shell of the experiment chamber 1 transfers temperature change to the air in the experiment chamber 1 in a natural convection, heat conduction and heat radiation mode.
Through the mode, the heater 4 and the evaporator 5 perform sufficient heat exchange with the air in the circulating air duct 2, the surface temperature of the heater is reduced, the problem of incomplete evaporation of the refrigerant in the evaporator is solved, and therefore the quality and the reliability of the heater and the refrigeration system are improved. Through the drive of circulating fan 3, the circulating air and the shell of experiment chamber 1 are subjected to uniform convection heat transfer, so that the temperature of the inner wall of experiment chamber 1 is kept consistent, and the temperature uniformity in the experiment tank is improved.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalence of such metes and bounds are therefore intended to be embraced by the appended claims.
Claims (5)
1. The high-uniformity windless environment test box structure is characterized by comprising a test box main body, wherein an experiment cabin is arranged in the test box main body, a circulating air channel is arranged between the experiment cabin and the test box main body, and the circulating air channel is arranged around the experiment cabin.
2. The structure of claim 1, wherein the test box body further comprises a plurality of circulating fans, and the circulating fans are communicated with the circulating air duct to circulate air inside the circulating air duct.
3. The structure of claim 2, wherein an evaporator and a heater are disposed inside the circulating air duct.
4. The structure as claimed in claim 3, wherein the circulating fan is coupled to the evaporator and the heater.
5. The structure of claim 1, wherein the test chamber housing is made of a metal with a high thermal conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123372220.1U CN217288444U (en) | 2021-12-29 | 2021-12-29 | High-uniformity windless environment test box structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123372220.1U CN217288444U (en) | 2021-12-29 | 2021-12-29 | High-uniformity windless environment test box structure |
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| Publication Number | Publication Date |
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| CN217288444U true CN217288444U (en) | 2022-08-26 |
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| CN202123372220.1U Active CN217288444U (en) | 2021-12-29 | 2021-12-29 | High-uniformity windless environment test box structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116851045A (en) * | 2023-08-10 | 2023-10-10 | 广州五所环境仪器有限公司 | Windless high-low temperature test device |
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2021
- 2021-12-29 CN CN202123372220.1U patent/CN217288444U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116851045A (en) * | 2023-08-10 | 2023-10-10 | 广州五所环境仪器有限公司 | Windless high-low temperature test device |
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