CN103816947A - Air duct structure of constant-temperature and constant-humidity test box - Google Patents
Air duct structure of constant-temperature and constant-humidity test box Download PDFInfo
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- CN103816947A CN103816947A CN201410047947.8A CN201410047947A CN103816947A CN 103816947 A CN103816947 A CN 103816947A CN 201410047947 A CN201410047947 A CN 201410047947A CN 103816947 A CN103816947 A CN 103816947A
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- test chamber
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- circulating fan
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Abstract
The invention discloses an air duct structure of a constant-temperature and constant-humidity test box. The air duct structure comprises a test box body, a test chamber, a circulating air duct and a plurality of circulating fans, wherein the test chamber and the circulating air duct are arranged in the test box body, the circulating fans are arranged in the circulating air duct, and an air guide pipe is arranged on each circulating fan respectively; by the Nth circulating fan through the air guide pipe from a position in which the first circulating fan is located, gas is sucked into the circulating air duct from the upper part of the test chamber and then blown into the test chamber from the lower part of the circulating air duct or the gas is sucked into the circulating air duct from the lower part of the test chamber and then blown into the test chamber from the upper part of the circulating air duct; in the first to the (N-1)th circulating fan, by the air guide pipe of any circulating fan, from the position in which the adjacent circulating fan is located, the gas is sucked into the circulating air duct from the upper part of the test chamber and then blown into the test chamber from the lower part of the circulating air duct or the gas is sucked into the circulating air duct from the lower part of the test chamber and then blown into the test chamber from the upper part of the circulating air duct. The temperature distribution of all the test zones of the test chamber is uniform, and the test accuracy is high.
Description
Technical field
The present invention relates to a kind of air channel structure, relate in particular a kind of improvement of air channel structure of constant temperature humidity chamber.
Technical background
In the circulation air path of traditional constant temperature humidity chamber, be generally equiped with circulating fan, refrigerating plant and heater, described refrigerating plant and heater for circulation air path in air carry out heat exchange, but, traditional constant temperature humidity chamber is that circulating fan is directly installed in circulation air path, can not in circulation air path, fully mix through the parallel gas entering in circulation air path of each circulating fan, lead after gas enters test chamber and produce the temperature difference at each test zone of test chamber, cause to product to carry out stationary temperature constant moisture test time error large, measuring accuracy is low, the test result obtaining is unreliable.
Summary of the invention
The object of the invention is to overcome above-mentioned defect in prior art: provide one that gas can fully be mixed in circulation air path, avoid producing the temperature difference at each test zone of test chamber, make each test zone uniformity of temperature profile of test chamber, measuring accuracy is high, reliable test result, can be used for product and carries out stationary temperature constant humidity examination and make the air channel structure of the constant temperature humidity chamber of testing.
For achieving the above object, technical scheme provided by the invention is as follows: the air channel structure that a kind of constant temperature humidity chamber is provided, comprise test box body, be arranged on the intrinsic test chamber of test box and circulation air path, be installed in the refrigerating plant in circulation air path, heater, described test chamber is connected with circulation air path, also comprise several circulating fans that are installed in circulation air path, each circulating fan is equiped with respectively guide duct, N circulating fan sucked gas in circulation air path and is blown in test chamber or by gas and sucks in circulation air path and be blown in test chamber from circulation air path top from test chamber bottom from circulation air path bottom again from test chamber top from the residing position of first circulating fan by guide duct, at first to N-1 circulating fan, the guide duct of any circulating fan sucks gas in circulation air path and is blown in test chamber or by gas and sucks in circulation air path and be blown in test chamber from circulation air path top from test chamber bottom from circulation air path bottom again from test chamber top from the residing position of circulating fan being adjacent.
Furthermore, described from the residing position of first circulating fan, gas is sucked from test chamber top to be blown into from circulation air path bottom again in circulation air path in test chamber or by gas, suck the guide duct being blown into from circulation air path top again in test chamber in circulation air path from test chamber bottom and be arranged in examination case body or be arranged on examination case body exterior.
The beneficial effect of the air channel structure of constant temperature humidity chamber of the present invention is: by several circulating fans are set in circulation air path, each circulating fan is equiped with respectively guide duct, N circulating fan sucked gas in circulation air path and is blown in test chamber or by gas and sucks in circulation air path and be blown in test chamber from circulation air path top from test chamber bottom from circulation air path bottom again from test chamber top from the residing position of first circulating fan by guide duct, at first to N-1 circulating fan, the guide duct of any circulating fan sucks gas in circulation air path and is blown in test chamber or by gas and sucks in circulation air path and be blown in test chamber from circulation air path top from test chamber bottom from circulation air path bottom again from test chamber top from the residing position of circulating fan being adjacent.Gas can fully be mixed in circulation air path, avoid producing the temperature difference at each test zone of test chamber, make each test zone uniformity of temperature profile of test chamber, measuring accuracy is high, reliable test result.
Below in conjunction with drawings and Examples, the air channel structure of constant temperature humidity chamber of the present invention is described further:
Accompanying drawing explanation
Fig. 1 is the structural representation of the air channel structure embodiment mono-of constant temperature humidity chamber of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the structural representation of the air channel structure embodiment bis-of constant temperature humidity chamber of the present invention;
Fig. 4 is that the B of Fig. 3 is to view.
The specific embodiment
Therefore the most preferred embodiment of the air channel structure of constant temperature humidity chamber of the present invention below, do not limit protection scope of the present invention.
Embodiment mono-, with reference to Fig. 1, Fig. 2, a kind of air channel structure of constant temperature humidity chamber is provided, comprise test box body 1, be arranged on test chamber 2 and circulation air path 3 in test box body 1, be installed in the refrigerating plant 4 in circulation air path 3, heater 5, described test chamber 2 is connected with circulation air path 3, also comprise several circulating fans 6 that are installed in circulation air path 3, each circulating fan 6 is equiped with respectively guide duct 7, N circulating fan 6 sucked in circulation air path 3 and is blown in test chamber 2 from circulation air path 3 bottoms from test chamber 2 tops from first residing position of circulating fan 6 by gas by guide duct 7, at first to N-1 circulating fan 6, the guide duct 7 of any circulating fan 6 sucks gas in circulation air path 3 and is blown in test chamber 2 from circulation air path 3 bottoms from test chamber 2 tops from the residing position of circulating fan 6 being adjacent, gas flow through with each circulating fan 6 and guide duct 7 after, in the interior abundant mixing of circulation air path 3, avoid producing the temperature difference at each test zone of test chamber, make each test zone uniformity of temperature profile of test chamber.
In this enforcement, the described guide duct 7 being blown into from circulation air path 3 bottoms again in test chamber 2 in circulation air path 3 that gas sucked from test chamber 2 tops from first residing position of circulating fan 6 is arranged in examination case body 1 or is arranged on examination case body 1 inside.
Described refrigerating plant 4 be by several independently evaporimeter form, each evaporimeter is arranged on the bottom of corresponding circulating fan 6, described heater 5 be by several independently heater form, each heater is arranged on the front end of the air inlet of corresponding circulating fan 6, the position that described each heater heats is also equiped with temperature sensor, detect the temperature of the position that heater heats by temperature sensor, and export control signal by controller and control each evaporimeter and heater.
Described circulating fan 6 is adjustable speed blower fan, can regulate the air quantity of each circulating fan 6, can be by regulating the air quantity of circulating fan 6, further the temperature of the each test zone to test chamber regulates, and makes each test zone uniformity of temperature profile of test chamber.
Embodiment bis-, with reference to Fig. 3, Fig. 4, a kind of air channel structure of constant temperature humidity chamber is provided, comprise test box body 1, be arranged on test chamber 2 and circulation air path 3 in test box body 1, be installed in the refrigerating plant 4 in circulation air path 3, heater 5, described test chamber 2 is connected with circulation air path 3, also comprise several circulating fans 6 that are installed in circulation air path 3, each circulating fan 6 is equiped with respectively guide duct 7, N circulating fan 6 sucked gas in circulation air path 3 and is blown in test chamber 2 from circulation air path 3 tops from test chamber 2 bottoms by guide duct 7, at first to N-1 circulating fan 6, the guide duct 7 of any circulating fan 6 sucks gas in circulation air path 3 and is blown in test chamber 2 from circulation air path 3 tops from test chamber 2 bottoms from the residing position of circulating fan 6 being adjacent, gas flow through with each circulating fan 6 and guide duct 7 after, in the interior abundant mixing of circulation air path 3, avoid producing the temperature difference at each test zone of test chamber, make each test zone uniformity of temperature profile of test chamber.
In this enforcement, the described outside that from first residing position of circulating fan 6, gas is sucked to the guide duct 7 being blown into from circulation air path 3 tops again in circulation air paths 3 in test chamber 2 from test chamber 2 bottoms and be arranged on examination case body 1.
Described refrigerating plant 4 be by several independently evaporimeter form, each evaporimeter is arranged on the bottom of corresponding circulating fan 6, described heater 5 be by several independently heater form, each heater is arranged on the bottom of corresponding circulating fan 6, the position that described each heater heats is also equiped with temperature sensor, detect the temperature of the position that heater heats by temperature sensor, and export control signal by controller and control each evaporimeter and heater.
All the other features of the present embodiment are identical with embodiment mono-.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (6)
1. the air channel structure of a constant temperature humidity chamber, comprise test box body (1), be arranged on test chamber (2) and circulation air path (3) in test box body (1), be installed in the refrigerating plant (4) in circulation air path (3), heater (5), described test chamber (2) is connected with circulation air path (3), it is characterized in that, also comprise several circulating fans (6) that are installed in circulation air path (3), each circulating fan (6) is equiped with respectively guide duct (7), N circulating fan (6) sucked gas in circulation air path (3) and is blown in test chamber (2) or by gas and sucks in circulation air path (3) and be blown in test chamber (2) from circulation air path (3) top from test chamber (2) bottom from circulation air path (3) bottom again from test chamber (2) top from the residing position of first circulating fan (6) by guide duct (7), at first to N-1 circulating fan (6), the guide duct (7) of any circulating fan (6) sucks gas in circulation air path (3) and is blown in test chamber (2) or by gas and sucks in circulation air path (3) and be blown in test chamber (2) from circulation air path (3) top from test chamber (2) bottom from circulation air path (3) bottom again from test chamber (2) top from the residing position of circulating fan (6) being adjacent.
2. the air channel structure of constant temperature humidity chamber according to claim 1, is characterized in that, described refrigerating plant (4) be by several independently evaporimeter form, each evaporimeter is arranged on the bottom of corresponding circulating fan (6).
3. the air channel structure of constant temperature humidity chamber according to claim 1, it is characterized in that, described heater (5) be by several independently heater form, each heater is arranged on the bottom of corresponding circulating fan (6) or is arranged on the front end of the air inlet of corresponding circulating fan (6).
4. the air channel structure of constant temperature humidity chamber according to claim 3, is characterized in that, the position that described each heater heats is also equiped with temperature sensor.
5. the air channel structure of constant temperature humidity chamber according to claim 1, it is characterized in that, described from the residing position of first circulating fan (6), gas is sucked from test chamber (2) top to be blown into from circulation air path (3) bottom again in circulation air path (3) in test chamber (2) or by gas, suck the guide duct (7) being blown into from circulation air path (3) top again in test chamber (2) in circulation air path (3) from test chamber (2) bottom and be arranged in examination case body (1) or be arranged on examination case body (1) outside.
6. the air channel structure of constant temperature humidity chamber according to claim 1, is characterized in that, described circulating fan (6) is adjustable speed blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047947.8A CN103816947B (en) | 2014-02-11 | 2014-02-11 | The air channel structure of constant temperature humidity chamber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047947.8A CN103816947B (en) | 2014-02-11 | 2014-02-11 | The air channel structure of constant temperature humidity chamber |
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| CN103816947A true CN103816947A (en) | 2014-05-28 |
| CN103816947B CN103816947B (en) | 2016-05-04 |
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| CN201410047947.8A Active CN103816947B (en) | 2014-02-11 | 2014-02-11 | The air channel structure of constant temperature humidity chamber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107731A (en) * | 2014-08-04 | 2014-10-22 | 广州赛宝计量检测中心服务有限公司 | Constant-temperature temperature test box heated by liquid |
| CN106596137A (en) * | 2017-01-04 | 2017-04-26 | 东莞市升微机电设备科技有限公司 | Finished automobile testing room with high air volume and low air volume circulation function for testing high-and-low temperature, humidity and volatile organic compound |
| CN110433887A (en) * | 2019-08-12 | 2019-11-12 | 广州供电局有限公司 | Heating device and constant temperature oscillator |
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| JP2004212094A (en) * | 2002-12-27 | 2004-07-29 | Orion Mach Co Ltd | Environmental test device |
| CN201427051Y (en) * | 2009-04-03 | 2010-03-24 | 重庆哈丁科技有限公司 | High and low temperature test box having uniform air supply |
| JP2010271233A (en) * | 2009-05-22 | 2010-12-02 | Espec Corp | Environmental testing apparatus |
| CN203170337U (en) * | 2013-03-12 | 2013-09-04 | 东莞市升微机电设备科技有限公司 | Constant temperature and humidity test chamber air duct structure |
| CN203830023U (en) * | 2014-02-11 | 2014-09-17 | 东莞市升微机电设备科技有限公司 | Air duct structure for constant temperature and constant humidity test box |
-
2014
- 2014-02-11 CN CN201410047947.8A patent/CN103816947B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004212094A (en) * | 2002-12-27 | 2004-07-29 | Orion Mach Co Ltd | Environmental test device |
| CN201427051Y (en) * | 2009-04-03 | 2010-03-24 | 重庆哈丁科技有限公司 | High and low temperature test box having uniform air supply |
| JP2010271233A (en) * | 2009-05-22 | 2010-12-02 | Espec Corp | Environmental testing apparatus |
| CN203170337U (en) * | 2013-03-12 | 2013-09-04 | 东莞市升微机电设备科技有限公司 | Constant temperature and humidity test chamber air duct structure |
| CN203830023U (en) * | 2014-02-11 | 2014-09-17 | 东莞市升微机电设备科技有限公司 | Air duct structure for constant temperature and constant humidity test box |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107731A (en) * | 2014-08-04 | 2014-10-22 | 广州赛宝计量检测中心服务有限公司 | Constant-temperature temperature test box heated by liquid |
| CN106596137A (en) * | 2017-01-04 | 2017-04-26 | 东莞市升微机电设备科技有限公司 | Finished automobile testing room with high air volume and low air volume circulation function for testing high-and-low temperature, humidity and volatile organic compound |
| CN110433887A (en) * | 2019-08-12 | 2019-11-12 | 广州供电局有限公司 | Heating device and constant temperature oscillator |
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| CN103816947B (en) | 2016-05-04 |
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