CN219915306U - Test box for accurately controlling surface temperature of product - Google Patents
Test box for accurately controlling surface temperature of product Download PDFInfo
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- CN219915306U CN219915306U CN202320486570.0U CN202320486570U CN219915306U CN 219915306 U CN219915306 U CN 219915306U CN 202320486570 U CN202320486570 U CN 202320486570U CN 219915306 U CN219915306 U CN 219915306U
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Abstract
The utility model discloses a test box which is beneficial to accurately controlling the surface temperature of a product, wherein a working chamber and a temperature control chamber are arranged in the box body, the working chamber is used for placing a sample to be tested, a heating device and a refrigerating device are arranged in the temperature control chamber, the heating device and the refrigerating device are electrically connected with a temperature controller, the temperature controller is electrically connected with a plurality of temperature measuring elements, and each temperature measuring element is used for being directly attached to the surface of the sample. The beneficial effects of the utility model are as follows: in the temperature test process, after a sample to be tested is placed in a working chamber, the temperature measuring element is attached to the surface of the sample, then the temperature of the working chamber is increased or decreased through the temperature controller, the temperature collected by the temperature measuring element is the surface temperature of the sample, and compared with a traditional temperature measuring mode, the temperature of the surface of the sample can be reflected more accurately, the accuracy of temperature test can be improved, and the temperature test device is particularly suitable for temperature test of products with severe temperature requirements.
Description
Technical Field
The utility model relates to an environment test box, in particular to a test box which is beneficial to accurately controlling the surface temperature of a product.
Background
The environmental test box is test equipment capable of simulating environments such as high temperature, high humidity, high pressure, sand dust, wind snow and the like, and products are usually required to be placed into the test equipment after sample preparation is completed, so that reliability and service life of the products in the environments can be known and evaluated, and subsequent improvement and optimization of the products are facilitated. The temperature test box can be specially used for simulating different environment temperatures and is used for testing the operation condition of the product at a set temperature. The test objects of the high-low temperature box are very wide, such as: aerospace devices, electronic components, transportation vehicles, household appliances, industrial appliances, and the like.
The traditional temperature test box mainly comprises a working chamber and a temperature chamber, wherein a heating module, a refrigerating module and a circulating fan are arranged in the temperature chamber, a temperature sensor is arranged in the working chamber, and a product to be tested is placed in the working chamber and located at the front end of the circulating fan. The heating module and the refrigerating module generate heat energy or cold energy, then the heat energy or the cold energy can be circulated to the working chamber under the action of the circulating fan, and the temperature of the surface of the product is confirmed through the temperature reflected by the temperature sensor.
However, based on such a test box air flow layout, since the test product is not in direct contact with the sensor, there is a certain difference between the temperature value fed back by the sensor and the temperature of the product surface from a microscopic point of view, and the temperature of the product itself cannot be reflected extremely accurately. However, many test subjects have extremely severe requirements on temperature values, high-temperature parts of products such as aerospace transmitters, automobile engines and the like need to precisely control the surface temperature of the products, otherwise, deviation of test results can occur, and subsequent research, development and use of the products are seriously affected.
Disclosure of Invention
In view of the above, the utility model provides a test box which is helpful for accurately controlling the surface temperature of a product, can more accurately test and reflect the surface temperature of the product, and is helpful for improving the accuracy of the product test.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a help accurate control product surface temperature's test box, its key lies in, includes the box, be equipped with working chamber and control by temperature change room in the box, wherein, the working chamber is used for placing the sample that waits to test, heating device and refrigerating plant have been put to the control by temperature change is indoor, and heating device and refrigerating plant are connected with temperature controller electrically, temperature controller electrically connected has a plurality of temperature measuring element, each the temperature measuring element all is used for directly attaching at the sample surface.
By adopting the structure, in the temperature test process, after the sample to be tested is placed in the working chamber, the temperature measuring element is attached to the surface of the sample, then the temperature of the working chamber is raised or lowered through the temperature controller, and the temperature collected by the temperature measuring element is the surface temperature of the sample.
Preferably, the temperature measuring element is connected with the temperature controller through a flexible cable.
Preferably, the temperature measuring element comprises a magnetic attraction patch and a sensor arranged in the magnetic attraction patch.
Preferably, the temperature measuring element is connected with the temperature controller in a wireless radio frequency mode.
Preferably, an air inlet and an air return opening are arranged between the working chamber and the temperature control chamber, a circulating fan is arranged in the temperature control chamber, and the circulating fan is opposite to the air inlet. By adopting the structure, the circulating fan can enable hot air or cold air to circulate between the working chamber and the temperature control chamber, so that the working chamber is heated or cooled.
Preferably, the working chamber is separated from the temperature control chamber by a side air plate and a bottom air plate, the temperature control chamber is of an inverse L-shaped structure, the air inlet is positioned in the upper area of the side air plate, and the air return opening is positioned on the bottom air plate.
Preferably, the return air inlet is arranged on the whole bottom air plate. By adopting the structure, the hot air or cold air circulation is more thorough and uniform.
Preferably, two groups of shelves are symmetrically arranged on the side wall of the working chamber respectively, a shelf strip is connected between the two groups of shelves on the same side, and shelves are placed on the two groups of symmetrical shelf strips and are used for placing samples to be tested.
Preferably, each group of shelves is uniformly provided with strip-shaped positioning holes, and the shelves are detachably assembled on the strip-shaped positioning holes. By adopting the structure, the height of the shelf bar can be adjusted according to the size of the sample to be tested, so that the sample to be tested can be positioned in the middle of the working chamber, and the testing effect is more accurate.
Preferably, the shelf is a hollow bracket. By adopting the structure, the surface of the sample to be tested can be more thoroughly wrapped by hot air or cold air, and the accuracy of the test is further improved.
Compared with the prior art, the utility model has the beneficial effects that:
the test box which is beneficial to precisely controlling the surface temperature of the product is adopted, in the temperature test process, after the sample to be tested is placed in the working chamber, the temperature measuring element is firstly attached to the surface of the sample, then the temperature of the working chamber is increased or decreased through the temperature controller, the temperature collected by the temperature measuring element is the surface temperature of the sample, and compared with the traditional temperature measuring mode, the temperature of the surface of the sample can be reflected more precisely, the accuracy of the temperature test can be improved, and the test box is particularly suitable for temperature test of products with severe temperature requirements.
Drawings
FIG. 1 is a schematic view of the structure of a test chamber (a perspective sectional state);
FIG. 2 is a cross-sectional view of the test chamber;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 4 is a schematic diagram of the operation of the temperature control of the test chamber;
FIG. 5 is a schematic view showing the structure of the temperature measuring element 5 attached to the sample A;
fig. 6 is a schematic structural view of the temperature measuring element 5.
Detailed Description
The utility model is further described below with reference to examples and figures.
As shown in fig. 1 and 4, a test box for accurately controlling the surface temperature of a product comprises a box body 1, wherein a working chamber 1a and a temperature control chamber 1b are arranged in the box body 1, the working chamber 1a is used for placing a sample a to be tested, a heating device 3 and a refrigerating device 4 are arranged in the temperature control chamber 1b, the heating device 3 and the refrigerating device 4 are electrically connected with a temperature controller 2, the temperature controller 2 is electrically connected with a plurality of temperature measuring elements 5, and as can be seen from fig. 5, the temperature measuring elements 5 are uniformly attached to each surface of the sample a.
When the environment temperature test is needed to be performed on the sample A, the temperature measuring elements 5 are uniformly attached to each surface of the sample A and placed in the working chamber 1a, and then the heating device 3 and the refrigerating device 4 release heat energy or cold energy through the temperature controller 2, so that the working chamber 1a is heated or cooled to reach the environment temperature of the sample A test, and at the moment, the temperature reflected by the temperature measuring elements 5 can represent the temperature of the surface of the sample A, so that the accuracy of the temperature test can be improved. Meanwhile, if the difference between the surface temperature of the sample A and the preset test temperature is measured in such a way, the temperature of the surface of the sample A can be quickly restored to the test temperature by timely increasing and decreasing the temperature of the heating device 3 and the refrigerating device 4, so that the purpose of accurately controlling the surface temperature of the product is achieved.
Further, the temperature measuring elements 5 can be attached to each direction of the sample A, multiple temperatures can be collected, the temperature reflected by the temperature measuring elements 5 is more accurate and uniform, the problem that the temperature of the windward side and the temperature of the leeward side of the sample A are different can be avoided, the test temperature can be controlled and tested more accurately, and the temperature measuring device has the advantages of being high in accuracy and strong in reliability.
As shown in fig. 6, in this embodiment, the temperature measuring element 5 includes a magnetic attraction patch 5a and a sensor 5b built in the magnetic attraction patch 5a, so designed, for a metal test sample, the temperature measuring element can directly magnetically attract and operate, and has the advantage of convenient operation.
Further, as shown in fig. 5, the temperature measuring element 5 may be connected to the temperature controller 2 through a flexible cable a, where the flexible cable a is preferably made of a high temperature resistant material, and has the advantage of high temperature resistance in a test box in a high temperature environment. Besides, the temperature measuring element 5 can be connected with the temperature controller 2 in a wireless radio frequency mode, so that the use and the operation are more convenient and quick.
Referring to fig. 1 and 2, a working chamber 1a and a temperature control chamber 1b are separated by a side air plate 1c and a bottom air plate 1d, and the side air plate 1c and the bottom air plate 1d enclose the temperature control chamber 1b into an inverse L-shaped structure; the upper region of the side air plate 1c is provided with an air inlet 1c1, the bottom air plate 1d is provided with an air return opening 1d1, a circulating fan 6 is arranged in the temperature control chamber 1b, the circulating fan 6 is opposite to the air inlet 1c1, and heat energy or cold energy released by the heating device 3 and the refrigerating device 4 can circularly flow between the working chamber 1a and the temperature control chamber 1b through the circulating fan 6, so that the purpose of heating or cooling the working chamber 1a is achieved.
Referring to fig. 3, in this embodiment, two sets of circulating fans 6 and air inlets 1c1 are respectively provided, and compared with a set of circulating fans 6 and air inlets 1c1 provided only in the middle, the circulating efficiency of heat energy or cold energy is improved, and meanwhile, heat transfer to one surface of the windward side of the sample a can be dispersed, so that the temperature of the surface of the sample a is more uniform, and the accuracy of testing is higher.
Referring again to fig. 1, the return air inlet 1d1 is uniformly arranged on the whole bottom air plate 1d, compared with the arrangement of the air inlet 1c1 and the return air inlet 1d1 in the same side direction in the traditional test box, the heat or cold energy flowing to the return air inlet 1d1 can wrap the sample a more omnidirectionally, and the uniformity of the surface temperature of the sample a is further improved.
As can be seen from fig. 2 and 3, two sets of shelves 1e are symmetrically arranged on the side wall of the working chamber 1a, a shelf 1f is connected between the two sets of shelves 1e on the same side, a shelf 1g is placed on the two sets of symmetrical shelf 1f, and a sample a is placed on the shelf 1 g. Referring to fig. 1, in this embodiment, the shelf 1g is a hollow bracket, so that the lower portion of the sample a can contact with heat or cold energy in the working chamber 1a, and further, uniformity of surface temperature of the sample a is improved.
Referring to fig. 2 again, each group of shelves 1e is uniformly distributed with strip-shaped positioning holes 1e1 from top to bottom, and the shelves 1f are detachably assembled on the strip-shaped positioning holes 1e 1. By the design, the height of the shelf 1f and the height of the shelf 1g can be adjusted according to the size of the sample A, so that the sample A can be placed at the middle position of the working chamber 1a, the temperature of the surface of the sample A is more uniform, and the testing effect of the sample A is more accurate.
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 (10)
1. The utility model provides a help accurate control product surface temperature's test box, its characterized in that, includes box (1), be equipped with working chamber (1 a) and control by temperature change room (1 b) in box (1), wherein, working chamber (1 a) are used for placing the sample of waiting to test, control by temperature change room (1 b) are built-in to have heating device (3) and refrigerating plant (4), and heating device (3) and refrigerating plant (4) are connected with temperature controller (2) electrically, temperature controller (2) are connected with temperature measuring element (5) of a plurality of, each temperature measuring element (5) all are used for directly attaching at the sample surface.
2. The test chamber for facilitating accurate control of product surface temperature according to claim 1, wherein: the temperature measuring element (5) is connected with the temperature controller (2) through a flexible cable (a).
3. The test chamber for facilitating accurate control of product surface temperature according to claim 1, wherein: the temperature measuring element (5) comprises a magnetic patch (5 a) and a sensor (5 b) arranged in the magnetic patch (5 a).
4. The test chamber for facilitating accurate control of product surface temperature according to claim 1, wherein: the temperature measuring element (5) is connected with the temperature controller (2) in a wireless radio frequency mode.
5. The test chamber for facilitating accurate control of product surface temperature according to claim 1, wherein: an air inlet (1 c 1) and an air return opening (1 d 1) are formed between the working chamber (1 a) and the temperature control chamber (1 b), a circulating fan (6) is arranged in the temperature control chamber (1 b), and the circulating fan (6) is opposite to the air inlet (1 c 1).
6. The test chamber for facilitating accurate control of product surface temperature according to claim 5, wherein: the working chamber (1 a) and the temperature control chamber (1 b) are separated by a side air plate (1 c) and a bottom air plate (1 d), the air inlet (1 c 1) is positioned in the upper area of the side air plate (1 c), and the air return opening (1 d 1) is positioned on the bottom air plate (1 d).
7. The test chamber for facilitating accurate control of product surface temperature according to claim 6, wherein: the air return openings (1 d 1) are uniformly distributed on the bottom air plate (1 d).
8. The test chamber for facilitating accurate control of product surface temperature according to claim 1, wherein: two groups of shelves (1 e) are symmetrically arranged on the side wall of the working chamber (1 a), a shelf bar (1 f) is connected between the two groups of shelves (1 e) on the same side, a shelf (1 g) is placed on the two groups of symmetrical shelf bars (1 f), and the shelf (1 g) is used for placing a sample to be measured.
9. The test chamber for facilitating accurate control of product surface temperature according to claim 8, wherein: the shelf (1 e) of each group is uniformly provided with strip-shaped positioning holes (1 e 1), and the shelf strips (1 f) are detachably assembled on the strip-shaped positioning holes (1 e 1).
10. The test chamber for facilitating accurate control of product surface temperature according to claim 8, wherein: the shelf (1 g) is a hollow bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320486570.0U CN219915306U (en) | 2023-03-14 | 2023-03-14 | Test box for accurately controlling surface temperature of product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320486570.0U CN219915306U (en) | 2023-03-14 | 2023-03-14 | Test box for accurately controlling surface temperature of product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219915306U true CN219915306U (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320486570.0U Active CN219915306U (en) | 2023-03-14 | 2023-03-14 | Test box for accurately controlling surface temperature of product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219915306U (en) |
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2023
- 2023-03-14 CN CN202320486570.0U patent/CN219915306U/en active Active
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