CN116212993A - High-low temperature test box - Google Patents

Abstract

The invention 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. The test box body is internally provided with an installation cavity, the inner wall of the installation cavity is provided with a plurality of air outlets and an air return groove which is arranged corresponding to the air outlets, the air return groove is used for recovering high-temperature gas or low-temperature gas blown out by the air outlets, a gap is reserved between the outer wall of the test box and the inner wall of the installation cavity, a product to be tested is placed in the test box, an air outlet is formed in the air direction adjusting piece, the air direction adjusting piece is buckled at the air outlets, and the air direction adjusting piece is used for conveying the high-temperature gas or low-temperature gas blown out by the air outlets to each surface of the test box through the air outlet. The temperature of the product to be tested in the detection box is controlled by changing the temperature of the detection box, and the temperature transmission is performed by adopting the heat radiation mode, so that the temperature of each area of the product to be tested is uniformly changed, the quality and the precision of the test are improved, and accurate test data are acquired.

Description

High-low temperature test box

Technical Field

The invention relates to the technical field of temperature detection, in particular to a high-low temperature test box.

Background

In the fields of digital products, foods, lithium batteries, vehicles, chemistry, medical treatment, building materials and the like, in order to ensure the quality reliability of the products, the products must be subjected to severe test verification, wherein a high-low temperature experiment is an indispensable one.

At present, two schemes exist for high-low temperature tests, one is an actual scene for testing, namely, a low-temperature test is usually carried out on the desert of Heilongjiang river, and a high-temperature test is carried out on the mountain of Xinjiang flame, but the mode is severely limited by regions and seasons, and because the test is carried out on standing outside, a large amount of manpower and material resources are likely to be consumed, uncontrollable unknown factors are more, and test data of products cannot be accurately and safely obtained; the second mode is generally to use a high-low temperature test box to provide corresponding test environment temperature for the product, perform high-low temperature test on the product, and compared with the actual scene test, the high-low temperature test box is hardly limited by regions and seasons, and does not need to perform the test after standing outside for a long time, so that the test is more time-saving and labor-saving, and is convenient to operate. Thus, the high and low temperature test chamber is the most commonly used way to perform high and low temperature tests.

However, the high-low temperature test box on the market at present is generally only provided with an air outlet and a recovery port, so that the product has regions facing the wind and leeward during the test, different regions have different temperature change rates, the temperature distribution is uneven, and because the shape of the product has uncertainty, if the shape of the product is irregular, the temperature distribution of the different regions is also possibly uneven, and accurate test data cannot be obtained.

Disclosure of Invention

The invention aims to provide a high-low temperature test box, which aims to ensure uniform temperature change of a product to be tested, improve test quality and precision and acquire accurate test data.

To achieve the purpose, the invention adopts the following technical scheme:

the high-low temperature test chamber comprises:

the test box comprises a test box body, wherein an installation cavity is formed in the test box body, a plurality of air supply outlets and air return grooves which are arranged in one-to-one correspondence with the air supply outlets are formed in the inner wall of the installation cavity, and the air return grooves are used for recycling high-temperature gas or low-temperature gas blown out by the air supply outlets;

the detection box is embedded in the installation cavity, a gap is reserved between the outer wall of the detection box and the inner wall of the installation cavity, and a product to be detected is placed in the detection box;

the wind direction adjusting piece, the wind outlet has been seted up to the wind direction adjusting piece, the wind direction adjusting piece detains and locates supply-air outlet department, the wind direction adjusting piece be used for with the supply-air outlet blows out high temperature gas or low temperature gas is passed through the air outlet is sent to each surface of detection case.

Optionally, the air return groove is a trapezoid groove with an arc on one side.

Optionally, a plurality of air outlet holes are formed in the air direction adjusting piece.

Optionally, the wind direction adjusting member includes:

the bidirectional adjusting piece is provided with two surfaces provided with a plurality of air outlet holes;

the unidirectional adjusting piece is provided with only one surface provided with a plurality of air outlet holes.

Optionally, the test box body is provided with four air supply outlets, two air supply outlets are buckled with the bidirectional adjusting piece, and the other two air supply outlets are buckled with the unidirectional adjusting piece.

Optionally, the detection box comprises a box body and a closing cap, wherein the single side of the box body is open, the closing cap is arranged at the open position, and the closing cap is used for closing the box body.

Optionally, the detection box further comprises a tray, a mounting bracket is fixedly arranged on the side wall in the box body, and the tray is placed on the mounting bracket.

Optionally, a plurality of the mounting brackets are arranged in the box body at intervals along the first direction.

Optionally, a plurality of through holes are formed in the tray.

Optionally, the high-low temperature test chamber further comprises a cabinet door, the cabinet door is arranged on the test chamber body in an openable and closable manner, and the cabinet door is used for closing the installation cavity.

The invention has the beneficial effects that:

the invention provides a high-low temperature test box, wherein a detection box which is provided with gaps between the detection box and the inner wall of a mounting cavity is arranged in the mounting cavity in the test box body, high-temperature gas or low-temperature gas is sent into the gaps between the mounting cavity and the detection box through an air direction adjusting piece, the high-temperature gas or low-temperature gas blown out from the air supply opening is uniformly sent to each surface of the detection box, and the high-temperature gas or low-temperature gas blown out from each air supply opening is recycled by a corresponding return air groove, so that the influence of wind 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 a product to be tested in the detection box is controlled by changing the temperature of the detection box, the temperature of each region of the product to be tested is uniformly changed by the heat radiation, and the quality and the accuracy of the test are improved, and the accurate test data are acquired.

Drawings

FIG. 1 is an assembly view of a high and low temperature test chamber of the present invention;

FIG. 2 is a schematic view of the structure of the high and low temperature test chamber of the present invention without the detection chamber;

FIG. 3 is a cross-sectional view of the high and low temperature test chamber of the present invention without the detection chamber;

FIG. 4 is a schematic view of the structure of the inspection box of the present invention;

FIG. 5 is a layout of the test box and the wind direction adjustment member of the present invention;

FIG. 6 is a schematic view of the structure of the bi-directional adjustment member of the present invention;

FIG. 7 is a schematic view of the structure of the one-way adjustment member of the present invention;

fig. 8 is a schematic structural view of the tray of the present invention.

In the figure:

1. a test chamber body; 11. a mounting cavity; 12. a return air duct;

2. a detection box; 21. a case; 211. a mounting bracket; 22. a closing cap; 23. a tray; 231. a through hole;

3. a wind direction adjusting member; 31. an air outlet hole; 32. a bidirectional adjusting piece; 33. a unidirectional adjustment member;

4. and a cabinet door.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

In order to ensure uniform temperature change of a product to be tested, improve test quality and precision and acquire accurate test data, the embodiment provides a high-low temperature test box.

As shown in fig. 1 to 8, the high-low temperature test chamber includes a test chamber body 1, a detection chamber 2, and a wind direction adjuster 3. The inside installation cavity 11 that is equipped with of test box body 1, a plurality of supply-air outlets and the return air duct 12 that sets up with a plurality of supply-air outlets one-to-one have been seted up to the inner wall of installation cavity 11, the return air duct 12 is used for retrieving the high temperature gas or the low temperature gas that the supply-air outlet blows out, detection case 2 inlays and locates in installation cavity 11, the clearance has between the outer wall of detection case 2 and the inner wall of installation cavity 11, the product that awaits measuring is placed in detection case 2, air outlet 31 has been seted up to wind direction regulating part 3, wind direction regulating part 3 detains locates the supply-air outlet department, wind direction regulating part 3 is used for sending the high temperature gas or the low temperature gas that the supply-air outlet blows out to each surface of detection case 2 through air outlet 31. The detection box 2 which is provided with gaps between the detection box and the inner wall of the installation cavity 11 is arranged in the installation cavity 11 in the test box body 1, the air supply opening sends high-temperature air or low-temperature air into the gaps between the installation cavity 11 and the detection box 2, the high-temperature air or low-temperature air blown out from the air supply opening is evenly sent to each surface of the detection box 2 through the air direction adjusting piece 3, the high-temperature air or low-temperature air blown out from each air supply opening is recycled by the corresponding air return groove 12, convection and vortex of the high-temperature air or low-temperature air are avoided, the temperature change of each surface of the detection box 2 is influenced, the consistency of the temperature change of each surface of the detection box 2 is ensured, the test temperature of a product to be tested in the detection box 2 is controlled by changing the temperature of the detection box 2, the temperature of each region of the product to be tested is evenly changed through the heat radiation, and the quality and the accuracy of the test are improved, and the accurate test data are obtained.

In this embodiment, in order to ensure the effect of temperature transfer of the detection box 2, the detection box 2 is made of a metal material with good heat conductivity, for example, an aluminum plate or a copper plate is used for splicing. Because the pure aluminum plate has lower hardness, the detection box 2 can be made of aluminum alloy in consideration of the use requirement. The outer wall of the detection box 2 is also provided with a separation plate, the detection box 2 is connected with the inner wall of the installation cavity 11 through the separation plate, and a gap is formed between the outer wall of the detection box 2 and the inner wall of the installation cavity 11 due to the existence of the separation plate, so that high-temperature gas or low-temperature gas can circulate.

Alternatively, as shown in fig. 2 and 3, the return air duct 12 is a trapezoid with one side having a curvature. By arranging the return air duct 12 as a trapezoid-shaped duct with an arc, the high-temperature air or low-temperature air can smoothly enter the return air duct 12, and local temperature fluctuation caused by backflow is avoided. In this embodiment, the air return duct 12 may generate suction force, and when the high-temperature gas or the low-temperature gas reaches the vicinity of the air return duct 12, the high-temperature gas or the low-temperature gas is directly sucked by the air return duct 12, so as to prevent the high-temperature gas or the low-temperature gas from encountering an obstacle to form vortex or returning along the original path to cause local temperature fluctuation after reaching the other end.

Alternatively, as shown in fig. 5, 6 and 7, a plurality of air outlet holes 31 are formed in the wind direction adjusting member 3. Compared with the original whole exhaust design, the plurality of air outlet holes 31 can increase the air outlet flow speed so that the air outlet can smoothly flow along the gap between the mounting cavity 11 and the detection box 2. In this embodiment, the opening direction of the air outlet hole 31 is parallel to the outer wall of the detection box 2, so that when the high-temperature gas or the low-temperature gas is blown out from the air outlet hole 31, the flowing direction of the high-temperature gas or the low-temperature gas is parallel to the outer wall of the detection box 2, thereby ensuring that the gas amounts of the high-temperature gas or the low-temperature gas covered by each region of the outer wall of the detection box 2 are the same, and ensuring that the temperature of the outer wall of the detection box 2 is uniformly changed.

Alternatively, as shown in fig. 5, 6, and 7, the wind direction adjuster 3 includes a bidirectional adjuster 32 and a unidirectional adjuster 33. The bidirectional regulating member 32 has two surfaces provided with a plurality of air outlet holes 31, and the unidirectional regulating member 33 has only one surface provided with a plurality of air outlet holes 31. The bidirectional adjusting piece 32 and the unidirectional adjusting piece 33 are matched for use, so that the outer walls of the detection box 2 can be covered by the bidirectional adjusting piece with the least amount, the number of parts is reduced, the assembly work is simpler, and the manufacturing cost is reduced.

Further, four air supply outlets are formed in the test box body 1, two air supply outlets are provided with two-way adjusting pieces 32 in a buckling mode, and the other two air supply outlets are provided with one-way adjusting pieces 33 in a buckling mode. By providing two bidirectional adjusting members 32 and two unidirectional adjusting members 33, four air supply ports can just cover six outer walls of the detection box 2.

Alternatively, as shown in fig. 4, the detection box 2 includes a box body 21 and a closing cover 22, the box body 21 is open on one side, the closing cover 22 is covered at the opening, and the closing cover 22 is used for closing the box body 21. By arranging the closing cap 22, the inside of the detection box 2 is in a sealed state in the test period, the product to be detected is ensured to be in the windless detection environment, and the quality and the accuracy of the test are ensured.

In this embodiment, the closing cap 22 is provided with a snap-fit structure, and the opening of the case 21 is provided with a snap-fit structure, and the snap is clamped with the snap-fit structure, so that the closing cap 22 is tightly fixed at the opening of the case 21. And in order to ensure the sealing element between the closing cover 22 and the box body 21, a sealing strip is further arranged at the joint between the closing cover 22 and the box body 21, so that the tightness of the detection box 2 is ensured.

Further, as shown in fig. 4, the detection box 2 further includes a tray 23, a mounting bracket 211 is fixedly provided on a side wall in the box body 21, and the tray 23 is placed on the mounting bracket 211. Since the tray 23 is mounted on the mounting bracket 211, it is ensured that the product to be measured is located in the middle area of the measuring box 2, thereby ensuring uniform heating of the product to be measured. In this embodiment, the mounting bracket 211 is two long strips, which are fixedly arranged on the side walls of the two sides of the box 21, and two ends of the tray 23 are erected on the two long strips. In other embodiments, slots may be formed on the side walls of the two sides of the case 21, and two ends of the tray 23 are inserted into the slots.

Further, as shown in fig. 4 and 5, a plurality of mounting brackets 211 are provided at intervals in the first direction in the case 21. By providing a plurality of mounting brackets 211, a plurality of trays 23 can be placed so that the case 21 can test a plurality of products to be tested at the same time. In the present embodiment, two mounting brackets 211 are provided in the case 21 in consideration of actual demands, and two trays 23 can be placed at the same time.

Further, as shown in fig. 8, a plurality of through holes 231 are formed in the tray 23. By providing the plurality of through holes 231, the area of the tray 23, which is shielded by the product to be tested, is reduced as much as possible, and the heat radiation dead angle of the product to be tested is reduced.

Optionally, as shown in fig. 1 and 2, the high-low temperature test chamber further comprises a cabinet door 4, the cabinet door 4 is arranged on the test chamber body 1 in an openable and closable manner, and the cabinet door 4 is used for closing the installation cavity 11. The cabinet door 4 is arranged to seal the installation cavity 11, so that the temperature inside the high-low temperature test chamber is isolated from the outside temperature, and the interference of the outside temperature to the temperature inside the high-low temperature test chamber is avoided.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims (10)

1. High low temperature test chamber, its characterized in that, high low temperature test chamber includes:

the test box comprises a test box body (1), wherein a mounting cavity (11) is formed in the test box body (1), a plurality of air supply openings and air return grooves (12) which are arranged in one-to-one correspondence with the air supply openings are formed in the inner wall of the mounting cavity (11), and the air return grooves (12) are used for recycling high-temperature gas or low-temperature gas blown out of the air supply openings;

the detection box (2) is embedded in the installation cavity (11), a gap is reserved between the outer wall of the detection box (2) and the inner wall of the installation cavity (11), and a product to be detected is placed in the detection box (2);

the wind direction adjusting piece (3), air outlet (31) has been seted up to wind direction adjusting piece (3), wind direction adjusting piece (3) knot is located supply-air outlet department, wind direction adjusting piece (3) are used for with the supply-air outlet blows out high temperature gas or low temperature gas is through air outlet (31) are sent to each surface of detection case (2).

2. A high and low temperature test chamber according to claim 1, wherein the return air duct (12) is a trapezoid with a curvature on one side.

3. The high-low temperature test chamber according to claim 1, wherein a plurality of air outlet holes (31) are formed in the wind direction adjusting member (3).

4. A high and low temperature test chamber according to claim 3, characterized in that the wind direction adjusting member (3) comprises:

the bidirectional adjusting piece (32) is provided with two surfaces provided with a plurality of air outlet holes (31);

the unidirectional adjusting piece (33) is provided with only one surface provided with a plurality of air outlet holes (31).

5. The high-low temperature test chamber according to claim 4, wherein the test chamber body (1) is provided with four air supply openings, two air supply openings are provided with the bidirectional adjusting piece (32) in a buckling manner, and the other two air supply openings are provided with the unidirectional adjusting piece (33) in a buckling manner.

6. The high-low temperature test chamber according to claim 1, wherein the detection chamber (2) comprises a chamber body (21) and a closing cover (22), the chamber body (21) is unilaterally opened, the closing cover (22) is covered at the opening, and the closing cover (22) is used for closing the chamber body (21).

7. The high-low temperature test chamber according to claim 6, wherein the detection chamber (2) further comprises a tray (23), a mounting bracket (211) is fixedly arranged on the side wall in the chamber body (21), and the tray (23) is placed on the mounting bracket (211).

8. The high and low temperature test chamber according to claim 7, wherein a plurality of said mounting brackets (211) are provided in said chamber (21) at intervals along a first direction.

9. The high and low temperature test chamber according to claim 7, wherein the tray (23) is provided with a plurality of through holes (231).

10. The high and low temperature test chamber according to claim 1, further comprising a cabinet door (4), said cabinet door (4) being openably and closably arranged in said test chamber body (1), said cabinet door (4) being adapted to close said installation cavity (11).

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