CN219232394U - Temperature chamber with double-circulation air path structure - Google Patents
Temperature chamber with double-circulation air path structure Download PDFInfo
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- CN219232394U CN219232394U CN202320153995.XU CN202320153995U CN219232394U CN 219232394 U CN219232394 U CN 219232394U CN 202320153995 U CN202320153995 U CN 202320153995U CN 219232394 U CN219232394 U CN 219232394U
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Abstract
The utility model discloses a temperature chamber with a double-circulation air path structure, wherein a shell component is provided with an air accommodating cavity, one side of the shell component is provided with an air outlet pipe and an air return pipe, and the inner ends of the air outlet pipe and the air return pipe are respectively provided with a first air door mechanism and a second air door mechanism; a partition board assembly is arranged in the air accommodating cavity and divides the air accommodating cavity into a first airflow chamber and a second airflow chamber, a fan is arranged in the second airflow chamber, one end of the partition board assembly is connected with the side wall of the shell assembly in a sealing way, and an internal circulation channel is formed between the other end of the partition board assembly and the side wall of the shell assembly; when the first air door mechanism and the second air door mechanism are in an open state, the inner circulation channel is closed, and the air flow carries out external circulation flow; when the first air door mechanism and the second air door mechanism are in a closed state, the internal circulation channel is opened, and air flows in an internal circulation manner between the first air flow chamber and the second air flow chamber, so that the effect of improving temperature stability and uniformity can be achieved.
Description
Technical Field
The utility model relates to a cold and hot impact test box, in particular to a temperature chamber with a double-circulation air path structure.
Background
Cold and hot impact test chambers, also known as high and low temperature impact test chambers, typically have three chambers, a test chamber, a high temperature chamber, and a low temperature chamber, respectively. After a product to be tested is placed in a test chamber, low-temperature air is firstly introduced into the test chamber by a low-temperature chamber, then high-temperature air is introduced into the test chamber by a high-temperature chamber, or high-temperature air is firstly introduced into the test chamber by the high-temperature chamber, then low-temperature air is introduced into the test chamber by the low-temperature chamber, the tolerability of the product under a continuous environment with high temperature and very low temperature can be tested, and therefore the chemical change or physical damage of the product caused by thermal expansion and cold contraction in a short time can be tested. Therefore, the cold and hot impact test box can be used for testing the adaptability of products to abrupt temperature changes, and is a necessary test assembly in the industries of metal, plastic, rubber, electronics and the like.
In the existing structure of the cold and hot impact test box, air circulation channels are connected between the high-temperature chamber and the test chamber, and when high-temperature impact is carried out, the air circulation channels of the low-temperature chamber are closed, otherwise, when low-temperature impact is carried out, the air circulation channels of the high-temperature chamber are closed. The problems thus exist: when the air circulation channels of the low-temperature chamber or the high-temperature chamber are closed, cold and hot air is in a non-flowing state in the corresponding temperature chamber, even if the heating and refrigerating device keeps continuously working, the uniformity and stability of the air temperature in the high-temperature chamber and the low-temperature chamber are difficult to ensure, and when the air circulation channels are opened again for temperature impact in the high-temperature chamber and the low-temperature chamber, the surface of a product cannot obtain the required temperature for the first time, and the reliability and the accuracy of the temperature impact are reduced in an intangible way.
Disclosure of Invention
In view of the above problems, the present utility model provides a temperature chamber with a dual-circulation air path structure, wherein after a circulation channel between the temperature chamber and a test chamber is closed, an air flow can flow in the temperature chamber in a self-circulation manner, so as to achieve the purpose of improving temperature stability and uniformity.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a temperature chamber with a double-circulation air path structure is characterized in that: the air outlet pipe and the return air pipe are respectively arranged at the outer ends of the air outlet pipe and the return air pipe and are respectively communicated with the air accommodating cavity, and a first air door mechanism and a second air door mechanism are respectively arranged at the communicating positions;
a baffle plate assembly is arranged in the air accommodating cavity and divides the air accommodating cavity into a first airflow chamber and a second airflow chamber, wherein a fan is arranged in the second airflow chamber, and an air inlet hole is formed in the position, corresponding to the fan, of the baffle plate assembly;
one end of the partition plate component is connected with the side wall of the shell component in a sealing way, and an internal circulation channel is formed between the other end of the partition plate component and the side wall of the shell component; when the first air door mechanism and the second air door mechanism are both in an open state, the inner circulation channel is closed by the two air door mechanisms, and the air flow carries out external circulation flow; when the first air door mechanism and the second air door mechanism are in the closed state, the internal circulation channel is opened, and air flow carries out internal circulation flow between the first air flow chamber and the second air flow chamber.
Preferably, the partition board assembly comprises a first board body and a second board body which are vertically arranged, a gap between the first board body and a right side board of the shell assembly encloses a second airflow chamber, and the second airflow chamber is opposite to the air outlet direction of the air outlet pipe.
Preferably, the gap between the second plate body and the lower side plate of the shell assembly encloses the internal circulation channel, and the first air door mechanism and the second air door mechanism are installed at positions corresponding to the end parts of the second plate body.
Preferably, an avoidance plate with an L-shaped structure is connected between the first plate body and the second plate body.
Preferably, an electric heating device or a refrigerating module is installed in the first airflow chamber.
Preferably, the first air door mechanism comprises a first air cylinder and a first air door, the first air door is rotatably assembled on the shell component through a rotating shaft arranged at the end part of the first air door, the outer end of the rotating shaft extends out of the shell component, a rocker arm extending outwards in the radial direction is arranged at the extending end of the rotating shaft, the rocker arm is rotatably connected with a piston rod of the first air cylinder, and a cylinder body of the first air cylinder is rotatably connected with the outside of the shell component.
Preferably, the housing assembly and the air accommodating chamber therein are rectangular in structure.
Preferably, an energy storage device is installed in the air accommodating chamber.
Compared with the prior art, the utility model has the beneficial effects that:
the temperature chamber with the double-circulation air path structure provided by the utility model has two airflow modes of external circulation and internal circulation, and the external circulation meets the temperature impact requirement. When the temperature impact is not carried out, through the switching of the two groups of air door mechanisms, the air flows in the temperature chamber in a self-circulation mode, uniformity and stability of air temperature in the air accommodating chamber can be guaranteed, when the temperature impact is carried out again, required impact temperature can be rapidly provided for the test chamber, and the purposes of improving the reliability and accuracy of the temperature impact test are achieved.
Drawings
FIG. 1 is a schematic view of the external structure of a temperature chamber according to the present utility model;
FIG. 2 is a cross-sectional view of the temperature chamber of FIG. 1 (first and second damper mechanisms closed);
FIG. 3 is a cross-sectional view of the temperature chamber of FIG. 1 (first and second damper mechanisms open);
fig. 4 is a schematic structural view of the first damper mechanism 4;
FIG. 5 is a reference diagram showing the use state of the temperature chamber in the cold and hot impact test chamber.
Detailed Description
The utility model is further described below with reference to examples and figures.
As shown in fig. 1 and 2, a temperature chamber with a double-circulation air path structure comprises a housing assembly 1, wherein the housing assembly 1 is of a rectangular structure, an air accommodating chamber 1a of the rectangular structure is arranged in the housing assembly 1, an air outlet pipe 2 and an air return pipe 3 are arranged on one side of the housing assembly 1, inner ends of the air outlet pipe 2 and the air return pipe 3 are communicated with the air accommodating chamber 1a, a first air door mechanism 4 and a second air door mechanism 5 are respectively arranged at communication positions, and the first air door mechanism 4 and the second air door mechanism 5 can be automatically opened and closed. A partition plate assembly 6 is arranged in the air accommodating chamber 1a, the partition plate assembly 6 divides the air accommodating chamber 1a into a first airflow chamber 1b and a second airflow chamber 1c, a fan 7 is arranged in the second airflow chamber 1c, and an air inlet hole 61 is formed in the partition plate assembly 6 at a position corresponding to the fan 7.
Referring to fig. 2 again, it can be seen that the partition plate assembly 6 is composed of a first plate body 6a, an avoidance plate 6c and a second plate body 6b which are sequentially connected, wherein the first plate body 6a and the second plate body 6b are vertically arranged, the upper end of the first plate body 6a is in sealing connection with the side wall of the housing assembly 1, and an internal circulation channel 1d is formed between the second plate body 6b and the side wall of the housing assembly 1. As can be seen in fig. 2 and 3, the first damper mechanism can be rotated by 490 ° to close the inner circulation channel 1d or the air outlet pipe 2, respectively, and the second damper mechanism 590 ° can be rotated to close the inner circulation channel 1d or the air return pipe 3, respectively.
In practical application, the temperature chambers are namely a high-temperature chamber and a low-temperature chamber of the cold and hot impact test box. The working principle of the embodiment is elaborated by applying the double-circulation air path structure of the temperature chamber in the high-temperature chamber. The following are provided:
referring to fig. 5, the outer ends of the air outlet pipe 2 and the air return pipe 3 are respectively communicated with a testing chamber 8 of the cold and hot impact testing box a. When the air accommodating chamber 1a performs high-temperature impact on the test chamber 8, the first air door mechanism 4 and the second air door mechanism 5 are both opened, the internal circulation channel 1d is closed by the two air door mechanisms, the air flow performs external circulation flow, and then, as can be seen by combining with fig. 3, the external circulation air flow path is: the air flow device comprises a first air flow chamber 1b, an air inlet hole 61, a second air flow chamber 1c, an air outlet pipe 2, a test chamber 8, an air return pipe 3 and a first air flow chamber 1b. Referring to fig. 2 again, after the high temperature impact is completed, the first air door mechanism 4 and the second air door mechanism 5 are closed, at this time, the internal circulation channel 1d is opened, and under the action of the fan 7, the air flows in the air accommodating chamber 1a in a circulating manner, and the internal circulation air flow path is as follows: the first airflow chamber 1b→the air inlet hole 61→the second airflow chamber 1c→the inner circulation passage 1d→the first airflow chamber 1b. Through the switching of the internal and external circulation, when high temperature impact is not carried out, the air flow can flow in the air accommodating chamber 1a, namely, the high temperature chamber in a self-circulation manner, so that the uniformity and the stability of the temperature of the hot air in the air accommodating chamber 1a can be ensured, and when the high temperature impact is carried out again, the required environment temperature can be rapidly provided for the test chamber 8, and the purposes of improving the reliability and the accuracy of the temperature impact test are achieved.
An electric heating device or a refrigerating module is installed in the first airflow chamber 1b for providing heat energy and cold energy required by the temperature chamber as a high-temperature chamber or a low-temperature chamber. Further, when the temperature chamber is used as a high temperature chamber, an energy storage device may be installed in the air accommodating chamber 1a to ensure that the air accommodating chamber 1a can be better maintained at a desired temperature.
As shown in fig. 3, the second airflow chamber 1c is surrounded by the first plate 6a and the right side plate a of the housing assembly 1, and the second airflow chamber 1c is opposite to the air outlet direction of the air outlet pipe 2. So arranged, air can be allowed to enter the test chamber 8 faster during external circulation.
As shown in fig. 4, the first damper mechanism 4 includes a first cylinder 4a and a first damper 4b, the first damper 4b has a rotary shaft 4b1 at an end portion thereof and is rotatably fitted to the housing assembly 1 by the rotary shaft 4b1, an outer end of the rotary shaft 4b1 extends out of the housing assembly 1 and is provided with a rocker arm 4c extending radially outwardly at the extending end, the first cylinder 4a is disposed outside the housing assembly 1, a piston rod 4a1 of the first cylinder 4a is rotatably connected to the rocker arm 4c, and a cylinder body 4a2 of the first cylinder 4a is hinged outside the housing assembly 1. In practical application, the rotary shaft 4b1 can be further extended to extend to the top of the test chamber, and the cylinder body 4a2 of the first cylinder 4a is hinged to the top of the test chamber. The working principle of the second damper mechanism 5 is the same as that of the first damper mechanism 4, and the description thereof will not be repeated here.
In order to enable the alternate closure of the inner circulation path 1d and the air outlet duct 2, the first damper mechanism 4 is installed at a position corresponding to the right end portion of the second plate body 6 b. The escape plate 6c between the first plate 6a and the second plate 6b is configured in an L-shaped structure so as not to interfere with the opening and closing of the first damper mechanism 4. In order to enable the alternate closure of the internal circulation duct 1d and the return duct 3, the second damper mechanism 5 is installed at a position corresponding to the left end portion of the second plate body 6 b.
Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (8)
1. A temperature chamber with dual circulation wind path structure, its characterized in that: the air-cooled test device comprises a shell assembly (1), wherein an air accommodating cavity (1 a) is formed in the shell assembly (1), an air outlet pipe (2) and an air return pipe (3) are arranged on one side of the shell assembly (1), the outer ends of the air outlet pipe (2) and the air return pipe (3) are connected with a test chamber, the inner ends of the air outlet pipe (2) and the air return pipe (3) are communicated with the air accommodating cavity (1 a), and a first air door mechanism (4) and a second air door mechanism (5) are respectively arranged at communication positions;
a partition board assembly (6) is arranged in the air accommodating chamber (1 a), the partition board assembly (6) divides the air accommodating chamber (1 a) into a first airflow chamber (1 b) and a second airflow chamber (1 c), a fan (7) is arranged in the second airflow chamber (1 c), and an air inlet hole (61) is formed in the partition board assembly (6) at a position corresponding to the fan (7);
one end of the partition plate component (6) is connected with the side wall of the shell component (1) in a sealing way, and an internal circulation channel (1 d) is formed between the other end of the partition plate component and the side wall of the shell component (1); when the first air door mechanism (4) and the second air door mechanism (5) are in an open state, the inner circulation channel (1 d) is closed by the two air door mechanisms, and the air flow carries out external circulation flow; when the first air door mechanism (4) and the second air door mechanism (5) are in a closed state, the internal circulation channel (1 d) is opened, and air flow carries out internal circulation flow between the first air flow chamber (1 b) and the second air flow chamber (1 c).
2. The temperature chamber with the double circulation wind path structure according to claim 1, wherein: the baffle assembly (6) comprises a first plate body (6 a) and a second plate body (6 b) which are vertically arranged, a gap between the first plate body (6 a) and the right side plate of the shell assembly (1) encloses a second airflow chamber (1 c), and the second airflow chamber (1 c) is opposite to the air outlet direction of the air outlet pipe (2).
3. The temperature chamber with the double circulation wind path structure according to claim 2, wherein: the gap between the second plate body (6 b) and the lower side plate of the shell assembly (1) encloses the internal circulation channel (1 d), and the first air door mechanism (4) and the second air door mechanism (5) are arranged at positions corresponding to the end parts of the second plate body (6 b).
4. A temperature chamber having a dual circulation air path structure according to claim 3, wherein: an avoidance plate (6 c) with an L-shaped structure is connected between the first plate body (6 a) and the second plate body (6 b).
5. The temperature chamber with the double circulation wind path structure according to claim 1, wherein: an electric heating device or a refrigerating module is arranged in the first airflow chamber (1 b).
6. The temperature chamber with the double circulation wind path structure according to claim 1, wherein: the first air door mechanism (4) comprises a first air cylinder (4 a) and a first air door (4 b), the first air door (4 b) is rotationally assembled on the shell component (1) through a rotating shaft (4 b 1) arranged at the end of the first air door, the outer end of the rotating shaft (4 b 1) extends out of the shell component (1), a rocker arm (4 c) extending outwards in the radial direction is arranged at the extending end of the rotating shaft, the rocker arm (4 c) is rotationally connected with a piston rod (4 a 1) of the first air cylinder (4 a), and a cylinder body (4 a 2) of the first air cylinder (4 a) is rotationally connected to the outside of the shell component (1).
7. The temperature chamber with the double circulation wind path structure according to claim 1, wherein: the shell component (1) and the air accommodating chamber (1 a) inside the shell component are all rectangular structures.
8. The temperature chamber with the double circulation wind path structure according to claim 1, wherein: an energy storage device is arranged in the air accommodating chamber (1 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320153995.XU CN219232394U (en) | 2023-01-31 | 2023-01-31 | Temperature chamber with double-circulation air path structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320153995.XU CN219232394U (en) | 2023-01-31 | 2023-01-31 | Temperature chamber with double-circulation air path structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219232394U true CN219232394U (en) | 2023-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320153995.XU Active CN219232394U (en) | 2023-01-31 | 2023-01-31 | Temperature chamber with double-circulation air path structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219232394U (en) |
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2023
- 2023-01-31 CN CN202320153995.XU patent/CN219232394U/en active Active
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