CN212348753U - Novel environmental test chamber for improving temperature uniformity - Google Patents
Novel environmental test chamber for improving temperature uniformity Download PDFInfo
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- CN212348753U CN212348753U CN202020468646.3U CN202020468646U CN212348753U CN 212348753 U CN212348753 U CN 212348753U CN 202020468646 U CN202020468646 U CN 202020468646U CN 212348753 U CN212348753 U CN 212348753U
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Abstract
The utility model discloses a novel environmental test box for improving temperature uniformity, which comprises a test box body, a blower, an air conditioner front panel, an air deflector, an air blowing plate and a lower air blowing port; the air feeder penetrates through the upper end of the left side of the test box body; the air conditioner is arranged below the air feeder, and the right side of the outer wall of the air conditioner is provided with an air conditioner front panel; the front panel of the air conditioner and the air feeder form an air supply outlet, and the front panel of the air conditioner and the bottom end of the test box body form an air return inlet; the air deflector is arranged at the air supply opening; the blowing plate is arranged on the right side of the air deflector and forms a lower blowing port with the front panel of the air conditioner. This utility model provides a poor problem of the poor controllability of temperature homogeneity difference and temperature variation in traditional test box, the opening of blowing through blowing mouthful department setting in the air conditioner top can transfer wind the board, aviation baffle and the lower part of handling, has solved the problem that the air conditioner side wind speed reduces, has guaranteed the homogeneity of air conditioner side temperature, has promoted the controllability of temperature variation in-process.
Description
Technical Field
The utility model relates to an environmental test case air supply technical field, concretely relates to improve novel environmental test case of temperature homogeneity.
Background
To ensure objectivity and reproducibility of the experiment, the environmental test chamber requires temperature uniformity in a limited space inside. In order to ensure the high uniformity of the internal temperature of the environmental test chamber, certain large air quantity, air regulation of an air blowing or air suction part, top air blowing, bottom air suction, air quantity adjustment of a frequency converter and the like are required to realize the required uniformity.
However, as the level of testing increases and the reliability of the samples increases, the demand for uniformity increases. For example, the national standard uniformity requirement is satisfied when the test chamber is empty. However, some recent customers require that the test chamber be loaded to satisfy the uniformity of each distribution point near the sample and the controllability of the temperature variation process.
Therefore, as shown in fig. 1, the air blowing structure of the conventional environmental test chamber 101 is affected by the dynamic pressure of the blower 102, and the space air velocity on the air conditioner 103 side cannot be increased. The temperature uniformity and controllability of the temperature variation process at the air conditioner 103 side are inferior or slower than those at the door 104 side, and cannot meet the customer's requirements.
Further, since the air volume in the center portion is large and the air volumes in the left and right sides are small when viewed from the side of the door 104 of the environmental test chamber 1, the temperature change in the center portion is fast and the temperature changes in both sides are slow.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an improve temperature homogeneity's novel environmental test case. The structure aims at solving the problems of poor temperature uniformity and poor controllability of temperature change in the traditional test box, and the problem of reduction of the side air speed of the air conditioner is solved by arranging the air blowing plate, the air guide plate and the lower air blowing port which can be used for air conditioning at the air blowing port above the air conditioner, so that the uniformity of the side temperature of the air conditioner is ensured, and the controllability in the temperature change process is improved.
In order to achieve the purpose, the utility model provides a novel environmental test box for improving temperature uniformity, which comprises a test box body, a blower, an air conditioner front panel, an air deflector, an air blowing plate and a lower air blowing port; the air feeder penetrates through the upper end of the left side of the test box body and is used for conveying air to the environmental test box; the air conditioner is arranged below the air feeder, and an air conditioner front panel is arranged on the right side of the outer wall of the air conditioner; the front panel of the air conditioner and the air feeder above form an air supply outlet, and the front panel of the air conditioner and the bottom end of the test box body form an air return opening; the air deflector is arranged at the air supply port, and the wind direction of the blowing air is changed by adjusting the air deflector; the blowing plate is arranged on the right side of the air deflector and forms a lower blowing port with the front panel of the air conditioner;
the wind blowing device is characterized in that the wind deflector changes the wind direction and divides the wind into two paths; the first path of air blowing capable of changing the air direction is subjected to air adjusting treatment through an air blowing plate to obtain air blowing with uniform temperature, and the air blowing is blown into the test box body; the second path of air blowing capable of changing the wind direction is directly blown into the air conditioner side in the test box body through the lower air blowing port, so that the temperature uniformity and controllability of the air conditioner side in the test box body are improved.
Most preferably, the air suction plate is arranged at the air return opening and connected with the bottom end of the air conditioner and used for absorbing air blown inside the test box body, cooling and heating are carried out through the air conditioner to obtain hot air blown, and the hot air is conveyed to the return fan to form a closed loop.
Most preferably, the blowing plate includes:
the air adjusting plates are distributed at two ends of the blowing plate in a grid shape and used for adjusting the temperature of the guided blowing air and improving the temperature uniformity of the guided blowing air; the perforated plate is arranged in the center of the air blowing plate; the cover plate is distributed at the central bottom end of the blowing plate; the perforated plate and the cover plate jointly adjust the air volume of the guided air blower.
Most preferably, the perforated plate and the cover plate are both in the shape of a grid.
Most preferably, the perforated plate and the cover plate are both strip-shaped.
Most preferably, the cover plate is plural.
The application of the utility model discloses, solved the poor problem of the poor controllability of temperature homogeneity difference and temperature variation in traditional test box, mouthful department of blowing through the air conditioner top sets up the mouth of blowing board, aviation baffle and the lower part that can the accent wind and handle, has solved the problem that air conditioner side wind speed reduces, has guaranteed the homogeneity of air conditioner side temperature, has promoted the controllability of temperature variation in-process.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a department of blowing above the air conditioner sets up blowing board and the aviation baffle that can transfer wind to handle, has solved the problem that air conditioner side wind speed reduces, has guaranteed the homogeneity of air conditioner side temperature, has promoted the controllability of temperature variation in-process.
Drawings
FIG. 1 is a schematic diagram of an air supply structure of a conventional environmental test chamber;
fig. 2 is a schematic view of the novel environmental test chamber provided by the present invention;
fig. 3 is a schematic structural diagram of a part of the novel environmental test chamber provided by the present invention;
fig. 4 is a schematic structural diagram of a porous plate and a cover plate in another embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the following embodiments, which are only used for illustrating the present invention and are not intended to limit the scope of the present invention.
The utility model provides an improve temperature homogeneity's novel environmental test case, as shown in figure 2, including proof box body 1, chamber door 2, forced draught blower, air conditioner positive plate 5, aviation baffle 4, the board 3 of blowing, the board 6 and the lower part mouth 12 of blowing of induced drafting.
The air feeder penetrates through the upper end of the left side of the test box body 1 and is used for conveying air to the test box body 1; the air conditioner is arranged below the blower; an air conditioner front panel 5 is arranged on the outer wall of the right side of the air conditioner, the air conditioner front panel 5 and an air feeder above the air conditioner form an air supply outlet, and an air return opening is formed at the bottom end of the test box 1; the air deflector 4 is arranged at the air supply port, and the wind direction of the blowing air is changed by adjusting the air deflector 4; the air blowing plate 3 is arranged on the right side of the air deflector 4 and forms a lower air blowing opening 12 with the air conditioner front panel 5;
the wind blowing of the air deflector 4 for changing the wind direction is divided into two paths; the first path of air blowing for changing the air direction is subjected to air adjusting treatment through the air blowing plate 3 to obtain air blowing with uniform temperature, and the air blowing is blown into the test box 1, and the angle of the air blowing plate 3 is adjusted in the air adjusting treatment, so that the air direction can be more finely adjusted; the second path of air blowing for changing the wind direction is directly blown into the air conditioner side in the test box body 1 through the lower air blowing port 12, so that the temperature uniformity and controllability of the air conditioner side in the test box body 1 are improved; the air suction plate 6 is arranged at the air return opening, is connected with the bottom end of the air conditioner and is used for absorbing air blown inside the test box body 1, cooling and heating are carried out through the air conditioner to obtain hot air blown, and the hot air is conveyed to the return fan to form a closed loop. Wherein, the air conditioner comprises a refrigerator 11, an evaporator 10 and a heater 9; the refrigerator 11 penetrates through the left side wall of the test box body 1; the evaporator 10 is arranged on the inner wall of the bottom end of the left side of the test box body 1, the first end of the evaporator is connected with the air suction plate 6 and communicated with the air return opening, the second end of the evaporator is communicated with the refrigerator 11 and coacts with the refrigerator 11 to cool the air blown in the test box body to obtain cold air blown; the heater 9 is arranged above the evaporator 10 and used for heating cold air to obtain hot air, and the hot air is conveyed back to the fan.
The blower includes a blower body 8 and a blower motor 7; the blower body 8 is arranged at the top end of the left side in the test box body 1 and used for conveying air to the test box body 1; the blower motor 7 is disposed at the top end of the outer side of the test box body 1, and is connected to the blower body 8 to provide power for the blower body 8.
The blowing plate 3 comprises an air adjusting plate 301, a porous plate 302 and a cover plate 303; the air adjusting plates 301 are distributed at two ends of the blowing plate 3 in a grid shape and used for adjusting the temperature of the first path of blowing air changing the wind direction and improving the temperature uniformity of the first path of blowing air changing the wind direction; the perforated plate 302 is arranged at the center of the blowing plate 3; the cover plate 303 is distributed at the central bottom end of the blowing plate 3; the cover plate 303 is plural.
The porous plate 302 and the cover plate 303 adjust the air volume of the first path of air blowing changing the air direction together, cover the central part of the air blowing plate 3, locally reduce the air volume of the central part of the air blowing plate 3, and realize the temperature uniformity of the effective space of the test box body 1 and the controllability of the temperature change process.
The shapes of the porous plate 302 and the cover plate 303 depend on factors such as the amount of air blown by the blower, the size of the test chamber body 1, the size of the blower plate, and the test requirements.
As shown in fig. 3, in the present embodiment, the perforated plate 302 and the lid plate 303 are in the shape of a mesh; in another embodiment, as shown in FIG. 4, the perforated plate 302 and the cover plate 303 are shaped as strips.
The blowing plate 3 can adjust the air flow and effectively adjust the air flow below the air supply outlet, so that the air speed of each temperature distribution point in the effective space inside the test box body 1 can be adjusted, and the uniformity and controllability of the blowing temperature can be realized.
The right side of the test box body 1 is also provided with a box door 2, and an experiment sample 13 is placed into the test box body 1 by opening and closing the box door 2, so that the temperature distribution inside the test box body 1 is detected.
As shown in fig. 3, in the present embodiment, 4 groups of experimental samples 13 are uniformly distributed on the right side of the air conditioner front panel 5 of the test chamber body 1 as viewed from the side of the chamber door 2, and the 4 groups of experimental samples 13 divide the effective space inside the test chamber body 1 into five distribution space areas a-e; each distribution space field of a-e has 6 distribution positions (A) - (F) on the elevation diagram of fig. 2, and the temperature uniformity of the six distribution positions (A) - (F) in the test box body 1 is respectively detected.
The wind direction of the wind sent by the blower is changed through the wind deflector 4, and the wind with the changed wind direction is divided into two paths; the first path of wind with changed wind direction is subjected to wind adjustment treatment through the wind blowing plate 3 to obtain wind with uniform temperature, and the wind is blown to the experimental samples 13 at six distribution positions (A) - (F) in the test box body 1; the second path of air blowing for changing the wind direction is directly blown into the distribution points (A) and (D) at the air conditioner side in the test box body 1 through the lower air blowing port 12, so that the temperature uniformity and controllability at the air conditioner side are improved; then, the air blown from the inside of the test box body 1 returns to the air conditioner through the air suction plate 6 at the bottom and the air return opening, and is cooled by the refrigerator 11 and the evaporator 10 of the air conditioner and heated by the heater, so that the hot air blown is transmitted to the back blowing fan.
The wind speeds of the positions of the distribution points (B), (C), (E) and (F) are easy to control, and the temperatures of the six distribution points (A) - (F) can be finely adjusted through the wind adjusting treatment of the blowing plate 3.
The second path of the wind direction changing wind direction of the wind deflector 4 and the lower blowing port 12 changes the wind direction is forced to flow to the positions of the distribution point (A) and the distribution point (D); through the air adjusting treatment of the blowing plate 3, the blowing area is reduced, and the air quantity of the positions of the distribution points (A) and the distribution points (D) below the blowing plate 3 is increased, so that the temperature uniformity of the positions of the distribution points (A) and the distribution points (D) can be adjusted.
As shown in fig. 3, the air volume in the central portion of the air outlet is larger than that in the right and left portions when viewed from the door 2 on the right side of the test chamber body 1, so that the temperature change in the central portion inside the test chamber body 1 is fast and the temperature change in the two portions is slow, i.e., the temperature change in the b, c, d regions is fast and the temperature change in the a, e regions is slow, and the temperature uniformity in the corresponding b, c, d regions and the a, e regions is different.
The porous plate 302 and the cover plate 303 are covered at the central part of the blowing plate 3, so that the temperature change speed in the fields of b, c and d can be effectively adjusted to be slower, and the change speed difference and the temperature difference in other fields can be reduced.
The utility model discloses a theory of operation:
the wind direction of the wind sent by the blower is changed through the wind deflector, and the wind with the changed wind direction is divided into two paths; the first path of air blowing with changed wind direction is subjected to air adjusting treatment through an air blowing plate to obtain air blowing with uniform temperature, and the air blowing is blown to test spaces at six distribution positions (A) - (F) in the test box; the second path of air blowing for changing the wind direction is directly blown into a distribution point (A) and a distribution point (D) at the air conditioner side in the test box body through a lower air blowing port, so that the temperature uniformity and controllability of the air conditioner side on the right side of the front panel of the air conditioner are improved; then, the air blown inside the test box body returns to the air conditioner through the air suction plate at the bottom and the air return opening, and is cooled by a refrigerator and an evaporator of the air conditioner and heated by a heater to obtain hot air blown to be transmitted to the air return fan.
To sum up, the utility model relates to an improve temperature homogeneity's novel environmental test case has solved the poor problem of controllability of the poor and temperature variation of temperature homogeneity in the traditional test case, and the mouth of blowing through the department of blowing above the air conditioner setting can transfer wind the board of blowing, aviation baffle and the lower part mouth of blowing of handling, has solved the problem that the air conditioner side wind speed reduces, has guaranteed the homogeneity of air conditioner side temperature, has promoted the controllability of temperature variation in-process.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (6)
1. A novel environmental test chamber for improving temperature uniformity is characterized by comprising:
a test chamber body;
the air feeder penetrates through the upper end of the left side of the test box body and is used for conveying air to the environmental test box;
the air conditioner is arranged below the air feeder, and an air conditioner front panel is arranged on the right side of the outer wall of the air conditioner; the front panel of the air conditioner and the air feeder form an air supply outlet, and the front panel of the air conditioner and the bottom end of the test box body form an air return outlet;
the air deflector is arranged at the air supply port, and the wind direction of the blowing air is changed by adjusting the air deflector;
the air blowing plate is arranged on the right side of the air guide plate and forms a lower air blowing opening together with the front plate of the air conditioner; the wind blowing device is characterized in that the wind deflector changes the wind direction and is divided into two paths; the first path of air blowing capable of changing the air direction passes through the air blowing plate to be subjected to air adjusting treatment, so that air blowing with uniform temperature is obtained and blown into the test box body; and the second path of air blowing for changing the wind direction is directly blown into the air conditioner side in the test box body through the lower air blowing port, so that the temperature uniformity and controllability of the air conditioner side in the test box body are improved.
2. A novel environmental test chamber for improving temperature uniformity according to claim 1, wherein the environmental test chamber is further provided with a suction plate; the air suction plate is arranged at the air return opening, is connected with the bottom end of the air conditioner and is used for absorbing the air blown inside the test box body, the air conditioner is used for cooling and heating to obtain hot air blown and the hot air is conveyed back to the air feeder to form a closed loop.
3. The novel environmental test chamber for improving temperature uniformity of claim 1, wherein said blowing plate comprises:
the air adjusting plates are distributed at two ends of the blowing plate in a grid shape and used for adjusting the temperature of the guided blowing air and improving the temperature uniformity of the guided blowing air;
the perforated plate is arranged in the center of the air blowing plate;
the cover plate is distributed at the central bottom end of the blowing plate;
the perforated plate and the cover plate jointly adjust the air volume of the guided air.
4. The novel environmental test chamber for improving temperature uniformity according to claim 3, wherein the perforated plate and the cover plate are both in a mesh shape.
5. The novel environmental test chamber for improving temperature uniformity according to claim 3, wherein the perforated plate and the cover plate are each in the shape of a strip.
6. The novel environmental test chamber for improving temperature uniformity according to claim 3, wherein said cover plate is plural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020468646.3U CN212348753U (en) | 2020-04-02 | 2020-04-02 | Novel environmental test chamber for improving temperature uniformity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020468646.3U CN212348753U (en) | 2020-04-02 | 2020-04-02 | Novel environmental test chamber for improving temperature uniformity |
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| Publication Number | Publication Date |
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| CN212348753U true CN212348753U (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020468646.3U Active CN212348753U (en) | 2020-04-02 | 2020-04-02 | Novel environmental test chamber for improving temperature uniformity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330653A (en) * | 2020-04-02 | 2020-06-26 | 上海爱斯佩克环境设备有限公司 | Novel environmental test chamber for improving temperature uniformity |
| CN115228512A (en) * | 2022-07-19 | 2022-10-25 | 江苏拓米洛环境试验设备有限公司 | Temperature simulation test box |
-
2020
- 2020-04-02 CN CN202020468646.3U patent/CN212348753U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330653A (en) * | 2020-04-02 | 2020-06-26 | 上海爱斯佩克环境设备有限公司 | Novel environmental test chamber for improving temperature uniformity |
| CN115228512A (en) * | 2022-07-19 | 2022-10-25 | 江苏拓米洛环境试验设备有限公司 | Temperature simulation test box |
| CN115228512B (en) * | 2022-07-19 | 2023-10-17 | 江苏拓米洛高端装备股份有限公司 | Temperature simulation test box |
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