CN210449225U - High-low temperature box air duct - Google Patents
High-low temperature box air duct Download PDFInfo
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- CN210449225U CN210449225U CN201921048911.6U CN201921048911U CN210449225U CN 210449225 U CN210449225 U CN 210449225U CN 201921048911 U CN201921048911 U CN 201921048911U CN 210449225 U CN210449225 U CN 210449225U
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- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a high low temperature box wind channel, it includes: the air supply device comprises a box body and an air supply mechanism, wherein a working chamber, a left air duct, a right air duct, a top air duct and a circulating chamber are arranged in the box body; a left baffle is arranged between the working chamber and the left air duct, a right baffle is arranged between the working chamber and the right air duct, and a top plate is arranged between the working chamber and the top air duct; the circulating chamber is communicated with the left air duct, the right air duct and the top air duct respectively; a plurality of air inlet holes are respectively formed in the left baffle and the right baffle; the working chamber is respectively communicated with the left air duct and the right air duct through the air inlet hole; an air outlet hole is arranged on the top air duct; the working chamber is communicated with the top air channel through the air outlet hole; the air supply mechanism is connected with the circulating cavity and used for blowing air in the circulating cavity into the left air channel and the right air channel simultaneously. The utility model discloses can guarantee that the inside temperature of studio is even, promote the detection precision of high-low temperature box by a wide margin.
Description
Technical Field
The utility model belongs to the technical field of high-low temperature box, a high-low temperature box wind channel is related to particularly.
Background
The environmental test equipment is an indispensable instrument for technological development and technical progress. The environmental test equipment simulates the environmental states of temperature, humidity and the like which may appear on the earth through a scientific technology manually, and tests various performance indexes of parts and materials of related products such as electronic electricians, automobile motorcycles, aerospace, ship weapons, universities and colleges, scientific research units and the like under the condition of high-temperature and low-temperature (alternating) cyclic change. The high-low temperature test chamber is the most important one of environmental test equipment, and is mainly used for detecting and testing temperature performance. In the high-low temperature box body in the prior art, the air duct design adopts a structure of air inlet from the top and air outlet from the bottom of the working chamber. The scheme has the problems of poor temperature uniformity inside the working chamber and certain error of detection test results. Therefore, how to develop a new high-low temperature box air duct structure to overcome the above problems of the prior art solutions is the direction of research needed by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-low-temperature box wind channel can keep the inside temperature of studio even, promotes the detection precision of high-low-temperature box.
The technical scheme is as follows:
a high and low temperature cabinet duct, comprising: the air-conditioning system comprises a box body and an air supply mechanism, wherein a working chamber, a left air duct, a right air duct, a top air duct and a circulating chamber are arranged in the box body; a left baffle is arranged between the working chamber and the left air duct, a right baffle is arranged between the working chamber and the right air duct, and a top plate is arranged between the working chamber and the top air duct; a rear baffle is arranged between the working chamber and the circulating chamber; the left side of the circulating chamber is communicated with the left air channel, the right side of the circulating chamber is communicated with the right air channel, and the top of the circulating chamber is communicated with the top air channel; a plurality of air inlet holes are respectively formed in the left baffle and the right baffle; the working chamber is respectively communicated with the left air duct and the right air duct through the air inlet hole; an air outlet hole is formed in the top air duct; the working chamber is communicated with the top air channel through the air outlet hole; the air supply mechanism is connected with the circulating cavity and used for blowing air in the circulating cavity into the left air channel and the right air channel simultaneously.
By adopting the technical scheme: the air supply mechanism simultaneously blows air in the circulating cavity into the left air duct and the right air duct, air flows entering the left air duct and the right air duct respectively collide with the inner walls of the left air duct and the right air duct far away from one side of the working chamber to form diffuse scattering, and then the air flows respectively enter the working chamber from the left side and the right side through the air inlet holes in the left baffle plate and the right baffle plate. The air pressure in the working chamber rises to form upward moving air flow, and the air flow enters the top air channel from the air outlet hole and finally returns to the circulating cavity to form circulating air flow. Compared with the prior art, the air flow of the air channel design stroke enters from two sides of the working chamber and is output from the top of the working chamber, the uniformity of the air flow in the working chamber is guaranteed, and the uniformity of the temperature in the working chamber is further realized.
Preferably, in the high and low temperature box air duct: the air supply mechanism comprises an even number of volutes which are symmetrically distributed in the circulating chamber, and the openings of the volutes are respectively arranged towards the left air duct/the right air duct; each volute is provided with an impeller; and each impeller is respectively connected with an output shaft of an air supply motor.
By adopting the technical scheme: the air supply motor drives the impeller to rotate, the impeller generates airflow flowing along the opening of the volute in the volute and respectively enters the left air channel and the right air channel, and the even number of worm gears are symmetrically distributed in the circulating cavity, so that the air volume entering the left air channel and the right air channel at the same time is kept consistent, the flow of the airflow entering the left side and the right side of the working chamber is further kept consistent, and the uniformity of the temperature inside the working chamber is guaranteed.
More preferably, in the high and low temperature box duct: and the air inlet holes in the left baffle and the right baffle are symmetrically arranged.
By adopting the technical scheme: and on the premise that the air quantity entering the working chamber from the left air duct/the right air duct is consistent, controlling the entering positions of the air flow entering the working chamber from the left air duct/the right air duct to be symmetrically distributed.
Further preferably, the high and low temperature box duct is characterized in that: the fresh air inlet on left baffle and the right baffle increases gradually from top to bottom.
By adopting the technical scheme: based on the factor that the air inlet hole positioned on the upper side of the left baffle/the right baffle is closer to the air outlet hole to cause the airflow speed to be faster, the air inlet hole is limited to be gradually increased from top to bottom, so that the air volume entering from the lower side of the left baffle/the right baffle is larger than the air volume entering from the upper side of the left baffle/the right baffle, and the uniformity of the lower temperature and the upper temperature of the working chamber is ensured.
Still more preferably, in the high and low temperature box duct: the air inlet hole adopts a round hole.
The utility model discloses simple structure easily realizes. The internal temperature of the working chamber can be ensured to be uniform, and the detection precision of the high-low temperature box is greatly improved.
Drawings
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings:
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a top view structural view of embodiment 1;
FIG. 3 is a schematic perspective view of the structure of FIG. 2;
FIG. 4 is a schematic half-sectional view of example 1.
The correspondence between each reference numeral and the part name is as follows:
1. a box body; 2. an air supply mechanism; 11. a working chamber; 12. a left air duct; 13. a right air duct; 14. a top air duct; 15. a circulation chamber; 16. an air inlet hole; 17. an air outlet; 111. a left baffle; 112. a right baffle; 113. a top plate; 114. a tailgate; 21. an air supply motor; 22. an impeller; 23. a volute.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following will be further described with reference to various embodiments.
As shown in fig. 1-4:
a high and low temperature cabinet duct, comprising: the air supply device comprises a box body 1 and an air supply mechanism 2, wherein a working chamber 11, a left air duct 12, a right air duct 13, a top air duct 14 and a circulating chamber 15 are arranged in the box body 1.
A left baffle 111 is arranged between the working chamber 11 and the left air duct 12, a right baffle 112 is arranged between the working chamber 11 and the right air duct 13, and a top plate 113 is arranged between the working chamber 11 and the top air duct 14; a rear baffle plate 114 is arranged between the working chamber 11 and the circulating chamber 15; the left side of the circulating chamber 15 is communicated with the left air duct 12, the right side of the circulating chamber is communicated with the right air duct 13, and the top of the circulating chamber is communicated with the top air duct 14; a plurality of air inlet holes 16 are symmetrically formed in the left baffle plate 111 and the right baffle plate 112; the working chamber 11 is respectively communicated with the left air duct 12 and the right air duct 13 through an air inlet hole 16; an air outlet 17 is arranged on the top air duct 14; the air inlet 16 adopts a round hole, and the air inlet 16 is gradually enlarged from top to bottom. The working chamber 11 is communicated with the top air duct 14 through an air outlet 17; the air supply mechanism 2 is connected with the circulating chamber 15 and is used for simultaneously blowing air in the circulating chamber 15 into the left air duct 12 and the right air duct 13. Specifically, the air supply mechanism 2 includes four volutes 23 symmetrically distributed in the circulation chamber 15, wherein openings of two volutes 23 are disposed toward the left air duct 12, and openings of the other two volutes 23 are disposed toward the right air duct 13. Each volute 23 is provided with an impeller 22; each of the impellers 22 is connected to an output shaft of one of the blower motors 21.
In practice, the working process is as follows:
the air supply motors 21 are started simultaneously, the impellers 22 are driven to rotate simultaneously, the impellers 22 generate air flows flowing towards the openings of the volutes 23 in the volutes 23, and the air flows drive the air in the circulating chamber 15 to enter the left air duct 12 and the right air duct 13 respectively. Because the number of the worm wheels 23 is even and the worm wheels are symmetrically distributed in the circulating chamber 15, the consistent air volume entering the left air duct 12 and the right air duct 13 at the same time is ensured. The air flows entering the left air duct 12 and the right air duct 13 respectively impinge on the inner walls of the left air duct 12 and the right air duct 13 on the side away from the working chamber 11 and form diffuse scattering, and then enter the working chamber 11 from the left and right sides through the air inlet holes 16 on the left baffle 12 and the right baffle 13 respectively. The air pressure in the working chamber 11 rises to form an upward moving air flow, and the upward air flow enters the top air duct 14 from the air outlet 17, moves along the top air duct 14 and finally returns to the circulating chamber to form a circulating air flow.
The above description is only for the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. The protection scope of the present invention is subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a high cryogenic box wind channel which characterized in that includes: the air supply device comprises a box body (1) and an air supply mechanism (2), wherein a working chamber (11), a left air duct (12), a right air duct (13), a top air duct (14) and a circulating chamber (15) are arranged in the box body (1);
a left baffle (111) is arranged between the working chamber (11) and the left air duct (12), a right baffle (112) is arranged between the working chamber (11) and the right air duct (13), and a top plate (113) is arranged between the working chamber (11) and the top air duct (14); a rear baffle plate (114) is arranged between the working chamber (11) and the circulating chamber (15);
the left side of the circulating cavity (15) is communicated with the left air channel (12), the right side of the circulating cavity is communicated with the right air channel (13), and the top of the circulating cavity is communicated with the top air channel (14);
a plurality of air inlet holes (16) are respectively formed in the left baffle plate (111) and the right baffle plate (112); the working chamber (11) is respectively communicated with the left air duct (12) and the right air duct (13) through the air inlet hole (16);
an air outlet hole (17) is formed in the top air duct (14); the working chamber (11) is communicated with the top air channel (14) through an air outlet hole (17);
the air supply mechanism (2) is connected with the circulating chamber (15) and is used for blowing air in the circulating chamber (15) into the left air duct (12) and the right air duct (13) simultaneously.
2. The high and low temperature cabinet duct of claim 1, wherein: the air supply mechanism (2) comprises an even number of volutes (23) which are symmetrically distributed in the circulating chamber (15), and the openings of the volutes (23) are respectively arranged towards the left air duct (12)/the right air duct (13); an impeller (22) is respectively arranged in each volute (23); each impeller (22) is connected with an output shaft of one air supply motor (21).
3. The high and low temperature cabinet duct according to claim 1 or 2, characterized in that: the air inlet holes (16) on the left baffle plate (111) and the right baffle plate (112) are symmetrically arranged.
4. The high and low temperature cabinet duct of claim 3, wherein: the air inlet holes (16) on the left baffle plate (111) and the right baffle plate (112) are gradually enlarged from top to bottom.
5. The high and low temperature cabinet duct of claim 1, wherein: the air inlet hole (16) is a round hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921048911.6U CN210449225U (en) | 2019-07-03 | 2019-07-03 | High-low temperature box air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921048911.6U CN210449225U (en) | 2019-07-03 | 2019-07-03 | High-low temperature box air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210449225U true CN210449225U (en) | 2020-05-05 |
Family
ID=70444045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921048911.6U Expired - Fee Related CN210449225U (en) | 2019-07-03 | 2019-07-03 | High-low temperature box air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210449225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112206837A (en) * | 2020-10-19 | 2021-01-12 | 江苏拓米洛环境试验设备有限公司 | Test box |
| CN113070105A (en) * | 2021-05-13 | 2021-07-06 | 南京艾尔普再生医学科技有限公司 | Superclean bench for biological product |
-
2019
- 2019-07-03 CN CN201921048911.6U patent/CN210449225U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112206837A (en) * | 2020-10-19 | 2021-01-12 | 江苏拓米洛环境试验设备有限公司 | Test box |
| CN113070105A (en) * | 2021-05-13 | 2021-07-06 | 南京艾尔普再生医学科技有限公司 | Superclean bench for biological product |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200505 |