High and low temperature test chamber

Abstract

The application belongs to the technical field of temperature detection, and discloses a high-low temperature test box, which comprises a test box body, a detection box and a wind direction adjusting piece. An installation cavity is arranged in the test box body, a plurality of air supply openings and air return grooves corresponding to the air supply openings are arranged on the inner wall of the installation cavity, the air return grooves are used for recycling high-temperature gas or low-temperature gas blown out by the air supply openings, there is a gap between the outer wall of the detection box and the inner wall of the installation cavity, a product to be measured is placed in the detection box, the wind direction adjusting piece is provided with an air outlet, the wind direction adjusting piece is buckled at the air supply opening, and the wind direction adjusting piece is used for sending the high-temperature gas or low-temperature gas blown out by the air supply opening to each surface of the detection box through the air outlet. The test temperature of the product to be measured in the detection box is controlled by changing the temperature of the detection box, the temperature is transmitted in the form of heat radiation, the temperature of each region of the product to be measured changes uniformly, and therefore the quality and precision of the test are improved, so that accurate test data can be obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of temperature detection, and in particular to a high-low temperature test chamber. BACKGROUND

[0002] In the digital product, food, lithium battery, vehicle, chemical, medical, building material and other industry fields, in order to ensure the quality and reliability of the product, it must be tested and verified strictly, and the high-low temperature experiment is essential.

[0003] At present, there are two schemes for high-low temperature test. One is to test in actual scene, usually to do low temperature experiment in Heilongjiang Mohe and high temperature experiment in Xinjiang Huoyanshan. However, this way is seriously limited by region and season, and needs to be tested in foreign countries, which will inevitably consume a lot of manpower and material resources, and there are many uncontrollable unknown factors, which leads to the inability to obtain accurate and safe test data of the product. The second way is to use a high-low temperature test chamber to provide a corresponding test environment temperature for the product, and to test the high-low temperature of the product. Compared with the actual scene test, the high-low temperature test chamber is almost not limited by region and season, and does not need to be tested for a long time. Therefore, the test is more time-saving and labor-saving, and is easy to operate. Therefore, the high-low temperature test chamber is the most common way for high-low temperature test.

[0004] However, the high-low temperature test chamber on the market generally only sets one air outlet and a recovery port, which causes the product to have windward and leeward areas during testing, resulting in different temperature change rates in different areas and uneven temperature distribution. In addition, due to the uncertainty of the shape of the product, if the shape of the product is irregular, it may also cause uneven temperature distribution in different areas, resulting in the inability to obtain accurate test data. SUMMARY

[0005] The purpose of the present application is to provide a high-low temperature test chamber, in order to ensure that the temperature of the product to be tested changes uniformly, improve the quality and accuracy of the test, and obtain accurate test data.

[0006] To achieve this purpose, the technical scheme adopted by the present application is as follows:

[0007] The high-low temperature test chamber comprises:

[0008] A test chamber body is provided with an installation cavity inside, a plurality of air supply openings are formed in the inner wall of the installation cavity, and a plurality of air return grooves corresponding to the air supply openings are arranged.

[0009] A detection chamber is embedded in the installation cavity, and a gap is formed between the outer wall of the detection chamber and the inner wall of the installation cavity. The product to be tested is placed in the detection chamber.

[0010] A wind direction adjusting piece is provided with an air outlet hole, and is buckled at the air outlet, and is used to send the high-temperature gas or the low-temperature gas blown out by the air outlet to each surface of the detection box through the air outlet hole.

[0011] Optionally, the return air groove is a trapezoidal groove with an arc on one side.

[0012] Optionally, the air outlet hole provided on the wind direction adjusting piece is provided with a plurality of air outlet holes.

[0013] Optionally, the wind direction adjusting piece comprises:

[0014] A bidirectional adjusting piece has two surfaces provided with a plurality of air outlet holes;

[0015] A unidirectional adjusting piece has only one surface provided with a plurality of air outlet holes.

[0016] Optionally, the test box body is provided with four air outlets, two of which are buckled with the bidirectional adjusting piece, and the other two are buckled with the unidirectional adjusting piece.

[0017] Optionally, the detection box comprises a box body and a closing cover, the box body is open on one side, and the closing cover is provided on the opening and used to close the box body.

[0018] Optionally, the detection box further comprises a tray, and a mounting bracket is fixedly arranged on the inner side wall of the box body, and the tray is placed on the mounting bracket.

[0019] Optionally, a plurality of mounting brackets are arranged in the box body along a first direction.

[0020] Optionally, a plurality of through holes are provided on the tray.

[0021] Optionally, the high-low temperature test box further comprises a cabinet door, the cabinet door is provided on the test box body and can be opened and closed, and the cabinet door is used to close the mounting cavity.

[0022] The beneficial effects of the present application are as follows:

[0023] The application provides a high-low temperature test box, which is characterized in that a detection box with gaps between the inner wall of the installation cavity and the detection box is arranged in the installation cavity in the test box body, high-temperature gas or low-temperature gas is sent to the gaps between the installation cavity and the detection box through air supply ports, the high-temperature gas or low-temperature gas blown out from the air supply ports is uniformly sent to each surface of the detection box through a wind direction adjusting piece, and the high-temperature gas or low-temperature gas blown out from each air supply port is recycled through a corresponding air return groove, so that the influence of air convection and vortex on the temperature change of each surface of the detection box is avoided, the consistency of the temperature change of each surface of the detection box is ensured, the test temperature of the product to be tested in the detection box is controlled by changing the temperature of the detection box, the temperature is transferred in the form of heat radiation, the temperature of each region of the product to be tested changes uniformly, and therefore the quality and precision of the test are improved, and accurate test data are obtained. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is an assembly view of the high-low temperature test box of the application;

[0025] Figure 2 is a structural schematic view of the high-low temperature test box of the application without placing the detection box;

[0026] Figure 3 is a sectional view of the high-low temperature test box of the application without placing the detection box;

[0027] Figure 4 is a structural schematic view of the detection box of the application;

[0028] Figure 5 is a layout view of the detection box and the wind direction adjusting piece of the application;

[0029] Figure 6 is a structural schematic view of the bidirectional adjusting piece of the application;

[0030] Figure 7 is a structural schematic view of the unidirectional adjusting piece of the application;

[0031] Figure 8 is a structural schematic view of the tray of the application.

[0032] In the drawings:

[0033] 1, test box body; 11, installation cavity; 12, air return groove;

[0034] 2, detection box; 21, box body; 211, installation support; 22, closing cover; 23, tray; 231, through hole;

[0035] 3, wind direction adjusting piece; 31, air outlet hole; 32, bidirectional adjusting piece; 33, unidirectional adjusting piece;

[0036] 4, cabinet door. DETAILED DESCRIPTION

[0037] The application will be further described below in conjunction with the drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not to be used to limit the application. In addition, it is to be understood that, for the purpose of description, only the parts related to the application are shown in the drawings.

[0038] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrated; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0039] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] In the description of the present embodiment, the terms "upper", "lower", "right", and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0041] In order to ensure that the temperature of the product to be tested changes uniformly, improve the quality and accuracy of the test, and obtain accurate test data, the present embodiment provides a high and low temperature test chamber.

[0042] As Figures 1 to 8As shown, the high and low temperature test chamber includes a test chamber body 1, a detection chamber 2 and a wind direction adjusting piece 3. The test chamber body 1 is internally provided with a mounting cavity 11, the inner wall of the mounting cavity 11 is provided with a plurality of air supply openings and a return air groove 12 corresponding to the plurality of air supply openings. The return air groove 12 is used to recover the high temperature gas or low temperature gas blown out of the air supply opening. The detection chamber 2 is embedded in the mounting cavity 11. There is a gap between the outer wall of the detection chamber 2 and the inner wall of the mounting cavity 11. The product to be tested is placed in the detection chamber 2. The wind direction adjusting piece 3 is provided with an air outlet hole 31. The wind direction adjusting piece 3 is buckled at the air supply opening. The wind direction adjusting piece 3 is used to send the high temperature gas or low temperature gas blown out of the air supply opening to each surface of the detection chamber 2 through the air outlet hole 31. A detection chamber 2 with a gap between the inner wall of the mounting cavity 11 is arranged in the mounting cavity 11 inside the test chamber body 1. The air supply opening sends the high temperature gas or low temperature gas to the gap between the mounting cavity 11 and the detection chamber 2. Through the wind direction adjusting piece 3, the high temperature gas or low temperature gas blown out of the air supply opening is uniformly sent to each surface of the detection chamber 2. The high temperature gas or low temperature gas blown out of each air supply opening is recovered by the corresponding return air groove 12. The high temperature gas or low temperature gas is prevented from generating convection and vortex, thereby affecting the temperature change of each surface of the detection chamber 2. The consistency of the temperature change of each surface of the detection chamber 2 is ensured. The test temperature of the product to be tested in the detection chamber 2 is controlled by changing the temperature of the detection chamber 2. The temperature is transferred in this way. The temperature of each region of the product to be tested changes uniformly, thereby improving the quality and precision of the test, so as to obtain accurate test data.

[0043] In this embodiment, in order to ensure the temperature transfer effect of the detection chamber 2, the detection chamber 2 is made of metal material with good heat conduction performance, for example, spliced with aluminum plate or copper plate. Since the hardness of pure aluminum plate is low, considering the use requirement, the detection chamber 2 can also be made of aluminum alloy. The outer wall of the detection chamber 2 is also provided with a partition plate. The detection chamber 2 is connected with the inner wall of the mounting cavity 11 through the partition plate. At the same time, the gap between the outer wall of the detection chamber 2 and the inner wall of the mounting cavity 11 is formed due to the existence of the partition plate, so as to flow the high temperature gas or low temperature gas.

[0044] Optionally, as shown in Figure 2 、 Figure 3 , the return air groove 12 is a trapezoidal groove with one side having an arc. By setting the return air groove 12 as a trapezoidal groove with one side having an arc, it is ensured that the high temperature gas or low temperature gas can smoothly enter the return air groove 12, avoiding the occurrence of backflow and causing local temperature fluctuation. In this embodiment, the return air groove 12 can generate suction. When the high temperature gas or low temperature gas reaches the vicinity of the return air groove 12, it will be directly sucked into the return air groove 12, thereby preventing the high temperature gas or low temperature gas from reaching the other end and encountering obstacles to form vortex or return along the original path to cause local temperature fluctuation.

[0045] Optionally, as shown in Figure 5 , Figure 6 , Figure 7 , the air outlet holes 31 on the air direction adjusting member 3 are provided in multiple. Compared with the original design of discharging air in a row, the multiple air outlet holes 31 can increase the air flow rate so that it can flow smoothly along the gap between the mounting cavity 11 and the detection box 2. In this embodiment, the opening direction of the air outlet holes 31 is parallel to the outer wall of the detection box 2, so that when the high-temperature gas or low-temperature gas is blown out from the air outlet holes 31, the flow direction of the high-temperature gas or low-temperature gas is parallel to the outer wall of the detection box 2, thereby ensuring that the amount of high-temperature gas or low-temperature gas covered by each area of the outer wall of the detection box 2 is the same, and ensuring that the temperature of the outer wall of the detection box 2 changes uniformly.

[0046] Optionally, as shown in Figure 5 , Figure 6 , Figure 7 , the air direction adjusting member 3 includes a bidirectional adjusting member 32 and a unidirectional adjusting member 33. The bidirectional adjusting member 32 has two surfaces provided with multiple air outlet holes 31, and the unidirectional adjusting member 33 has only one surface provided with multiple air outlet holes 31. The bidirectional adjusting member 32 and the unidirectional adjusting member 33 are used in combination, so that only a minimum number is needed to cover each outer wall of the detection box 2, reducing the number of parts, making the assembly work more simple, and reducing the manufacturing cost.

[0047] Further, the test box body 1 is provided with four air supply openings, two of which are provided with the bidirectional adjusting member 32, and the other two are provided with the unidirectional adjusting member 33. By providing two bidirectional adjusting members 32 and two unidirectional adjusting members 33, the four air supply openings can just cover the six outer walls of the detection box 2.

[0048] Optionally, as shown in Figure 4 , the detection box 2 includes a box body 21 and a closure cover 22, the box body 21 is open on one side, and the closure cover 22 is provided at the opening and used to close the box body 21. By providing the closure cover 22, the inside of the detection box 2 is in a sealed state during the test period, ensuring that the product to be tested is in a windless detection environment, and ensuring the quality and accuracy of the test.

[0049] In this embodiment, the closure cover 22 is provided with a buckle structure, and the opening of the box body 21 is provided with a buckle matching structure, and the buckle is connected with the buckle matching structure, so as to tightly fix the closure cover 22 at the opening of the box body 21. In order to ensure the sealing of the closure cover 22 and the box body 21, a sealing strip is further provided at the connection between the closure cover 22 and the box body 21, thereby ensuring the sealing of the detection box 2.

[0050] Further, as shown in Figure 4As shown in the figure, the detection box 2 further comprises a tray 23, and a mounting bracket 211 is fixedly arranged on the side wall in the box body 21, and the tray 23 is placed on the mounting bracket 211. Since the tray 23 is arranged on the mounting bracket 211, the product to be detected can be ensured to be in the middle area of the detection box 2, so that the product to be detected can be uniformly heated. In the embodiment, the mounting bracket 211 is two long plates, which are fixedly arranged on the side walls on both sides of the box body 21, and the two ends of the tray 23 are arranged on the two long plates. In other embodiments, a slot can be formed in the side wall on both sides of the box body 21, and the two ends of the tray 23 are inserted into the slot.

[0051] Further, as shown in the figure, Figure 4 , Figure 5 a plurality of mounting brackets 211 are arranged in the box body 21 along the first direction. By arranging a plurality of mounting brackets 211, a plurality of trays 23 can be placed, so that the box body 21 can simultaneously test a plurality of products to be detected. In the embodiment, considering the actual demand, two mounting brackets 211 are arranged in the box body 21, and two trays 23 can be placed at the same time.

[0052] Further, as shown in the figure, Figure 8 a plurality of through holes 231 are formed in the tray 23. By arranging a plurality of through holes 231, the area of the product to be detected on the tray 23 can be reduced, and the heat radiation dead angle of the product to be detected can be reduced.

[0053] Optionally, as shown in the figure, Figure 1 , Figure 2 the high-low temperature test box further comprises a cabinet door 4, which is arranged on the test box body 1 in an openable and closable manner, and the cabinet door 4 is used to close the mounting cavity 11. By arranging the cabinet door 4 to close the mounting cavity 11, the temperature inside the high-low temperature test box is isolated from the temperature outside, so as to avoid the interference of the temperature outside on the temperature inside the high-low temperature test box.

[0054] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A high and low temperature test chamber, characterized by, The high-low temperature test box comprises: a test box body (1) internally provided with a mounting cavity (11), the inner wall of the mounting cavity (11) being provided with a plurality of air supply openings and a return air groove (12) corresponding to each of the air supply openings, the return air groove (12) being used for recycling high-temperature gas or low-temperature gas blown out by the air supply openings; a detection box (2) embedded in the mounting cavity (11), the outer wall of the detection box (2) and the inner wall of the mounting cavity (11) having a gap, and a product to be detected being placed in the detection box (2); an air direction adjusting piece (3) provided with an air outlet hole (31), the opening direction of the air outlet hole (31) being parallel to the outer wall of the detection box (2) to ensure that the air volume of the high-temperature gas or the low-temperature gas covered by each area of the outer wall of the detection box (2) is the same, the air direction adjusting piece (3) being buckled at the air supply opening, and the air direction adjusting piece (3) being used for sending the high-temperature gas or the low-temperature gas blown out by the air supply opening to each surface of the detection box (2) through the air outlet hole (31); a plurality of air outlet holes (31) are provided on the air direction adjusting piece (3); the air direction adjusting piece (3) comprises: a bidirectional adjusting piece (32) having two surfaces provided with a plurality of air outlet holes (31); a unidirectional adjusting piece (33) having only one surface provided with a plurality of air outlet holes (31); the test box body (1) is provided with four air supply openings, two of the air supply openings being buckled with the bidirectional adjusting piece (32), and the other two air supply openings being buckled with the unidirectional adjusting piece (33), so that the four air supply openings cover six outer walls of the detection box (2).

2. The high-low temperature test chamber of claim 1, wherein, The return air groove (12) is a trapezoidal groove with an arc on one side.

3. The high-low temperature test chamber of claim 1, wherein, The detection box (2) comprises a box body (21) and a closure cover (22), the box body (21) being open on one side, and the closure cover (22) being buckled on the opening, and the closure cover (22) being used for closing the box body (21).

4. The high-low temperature test chamber of claim 3, wherein, The detection box (2) further comprises a tray (23), and a mounting bracket (211) is fixedly arranged on the side wall in the box body (21), and the tray (23) is placed on the mounting bracket (211).

5. The high-low temperature test chamber of claim 4, wherein, A plurality of mounting brackets (211) are arranged in the box body (21) along a first direction.

6. The high-low temperature test chamber of claim 4, wherein, A plurality of through holes (231) are provided on the tray (23).

7. The high-low temperature test chamber of claim 1, wherein, The high-low temperature test box further comprises a cabinet door (4) which is arranged on the test box body (1) in an openable and closable manner, and the cabinet door (4) is used for closing the mounting cavity (11).

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