CN203830023U - Air duct structure for constant temperature and constant humidity test box - Google Patents
Air duct structure for constant temperature and constant humidity test box Download PDFInfo
- Publication number
- CN203830023U CN203830023U CN201420062102.1U CN201420062102U CN203830023U CN 203830023 U CN203830023 U CN 203830023U CN 201420062102 U CN201420062102 U CN 201420062102U CN 203830023 U CN203830023 U CN 203830023U
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- China
- Prior art keywords
- test chamber
- air path
- circulation air
- circulating fan
- test
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Abstract
The utility model discloses an air duct structure for 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 formed in the test box body; the circulating fans are arranged in the circulating air duct; each circulating fan is provided with an air guide pipe; the Nth circulating fan sucks air from the upper part of the test chamber to the circulating air duct from the position of the first circulating fan, and blows the air into the test chamber from the lower part of the circulating air duct, or sucks the air into the circulating air duct from the lower part of the test chamber, and blows the air into the test chamber from the upper part of the circulating air duct; the air guide pipe of any one of the first to (N-1)th circulating fans sucks the air from the upper part of the test chamber to the circulating air duct from the position of the adjacent circulating fan, and blows the air into the test chamber from the lower part of the circulating air duct, or sucks the air into the circulating air duct from the lower part of the test chamber, and blows the air into the test chamber from the upper part of the circulating air duct. According to the air duct structure, the temperature of each test area of the test chamber is uniformly distributed, and the test accuracy is high.
Description
Technical field
The utility model relates to a kind of air channel structure, relates in particular a kind of improvement of air channel structure of constant temperature humidity chamber.
Background technology
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.
Utility model content
The purpose of this utility model 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, the technical scheme that the utility model provides 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 guide duct 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 first circulating fan, and this guide duct is arranged in examination case body or is arranged on examination case body exterior.
The beneficial effect of the air channel structure of constant temperature humidity chamber described in the utility model 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 described in the utility model is described further:
Brief description of the drawings
Fig. 1 is the structural representation of the air channel structure embodiment mono-of the utility model constant temperature humidity chamber;
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 the utility model constant temperature humidity chamber;
Fig. 4 is that the B of Fig. 3 is to view.
Detailed description of the invention
Therefore the most preferred embodiment of the air channel structure of constant temperature humidity chamber described in the utility model below, do not limit protection domain of the present utility model.
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 utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
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, it 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 guide duct (7) 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 first circulating fan (6), this guide duct (7) is arranged in examination case body (1) or is 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 |
|---|---|---|---|
| CN201420062102.1U CN203830023U (en) | 2014-02-11 | 2014-02-11 | Air duct structure for constant temperature and constant humidity test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420062102.1U CN203830023U (en) | 2014-02-11 | 2014-02-11 | Air duct structure for constant temperature and constant humidity test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203830023U true CN203830023U (en) | 2014-09-17 |
Family
ID=51507916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420062102.1U Withdrawn - After Issue CN203830023U (en) | 2014-02-11 | 2014-02-11 | Air duct structure for constant temperature and constant humidity test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203830023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103816947A (en) * | 2014-02-11 | 2014-05-28 | 东莞市升微机电设备科技有限公司 | Air duct structure of constant-temperature and constant-humidity test box |
| TWI557380B (en) * | 2015-05-21 | 2016-11-11 | 長聖儀器股份有限公司 | Temperature-humidity chamber |
-
2014
- 2014-02-11 CN CN201420062102.1U patent/CN203830023U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103816947A (en) * | 2014-02-11 | 2014-05-28 | 东莞市升微机电设备科技有限公司 | Air duct structure of constant-temperature and constant-humidity test box |
| CN103816947B (en) * | 2014-02-11 | 2016-05-04 | 东莞市升微机电设备科技有限公司 | The air channel structure of constant temperature humidity chamber |
| TWI557380B (en) * | 2015-05-21 | 2016-11-11 | 長聖儀器股份有限公司 | Temperature-humidity chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |