Wind speed adjustable sample cover for constant temperature and humidity chamber

Abstract

The utility model provides an adjustable wind speed sample cover for a constant temperature and humidity chamber, which comprises a sample cover body, the sample cover body can cover a product, a plurality of wind adjusting parts are arranged on the sample cover body, each wind adjusting part comprises an inner plate and an outer plate which are arranged on the sample cover body, and the outer plates can slide relative to the inner plates. A plurality of first air inlet holes are formed in the inner plate, second air inlet holes matched with the first air inlet holes are formed in the outer plate, and the outer plate can adjust the air inlet speed according to the staggered shielding size of the first air inlet holes. The constant-temperature and constant-humidity chamber can solve the problems that in the prior art, when a constant-temperature and constant-humidity chamber conducts high-temperature and low-temperature tests on heat dissipation products, air speed control does not meet standard requirements, and test results are not accurate. The device can effectively control the air volume and air speed flowing through products, is suitable for test products with different heating values, and is beneficial to improving the competitiveness of enterprises.

Description

Technical Field

[0001] The utility model relates to the technical field of constant temperature and humidity equipment for experiments, in particular to an adjustable wind speed sample cover for a constant temperature and humidity box. Background Art

[0002] Constant humidity and constant temperature chamber is a kind of test equipment used to test the heat and moisture resistance of electronic, electrical, communication, instrumentation, vehicles, materials, medical and aerospace products. In the GB / T2423.1 low temperature test and GB / T2423.2 high temperature test, the test samples are placed under low or high temperature conditions for a long enough time to achieve temperature stability. The temperature chamber adopts wind circulation mode. The fan is driven by a motor to generate air circulation and form a wind speed flow direction. The airflow circulation can reduce the time required to achieve temperature stability.

[0003] The samples to be tested are usually divided into two types: heat dissipation type and non-heat dissipation type. In order to ensure the accuracy of the test data, the working space of the heat dissipation type sample should use a low air flow velocity (the recommended wind speed is not more than 0.5m / s), while the working space of the non-heat dissipation type sample should use a high air flow velocity. The low air flow velocity can prevent the heat dissipation type sample from lowering the surface temperature due to the influence of air circulation.

[0004] The airflow size for air circulation in existing constant temperature and humidity chambers cannot be adjusted, and is generally above 1m / s. According to standard testing standards, this is a high airflow velocity and is not suitable for heat dissipation test samples. It is easy to have incorrect tests or to replace the test equipment for independent testing, which affects the test efficiency and is not conducive to improving the competitiveness of the enterprise. Utility Model Content

[0005] In order to solve the problems in the prior art, the utility model provides an adjustable wind speed sample cover for a constant temperature and humidity chamber, which solves the problem that when the constant temperature and humidity chamber in the prior art performs high and low temperature tests on heat dissipation products, the wind speed control does not meet the requirements, resulting in inaccurate test results.

[0006] The utility model discloses an adjustable wind speed sample cover for a constant temperature and humidity chamber, comprising a sample cover body, which can be covered on a product, and a plurality of wind regulating parts are arranged on the sample cover body, and the wind regulating parts are an inner plate and an outer plate arranged on the sample cover body, and the outer plate can slide relative to the inner plate, and a plurality of first air inlet holes are arranged on the inner plate, and a second air inlet hole cooperating with the first air inlet hole is arranged on the outer plate, and the outer plate can adjust the air inlet speed according to the size of the offset shielding of the first air inlet hole.

[0007] The utility model is further improved in that a material feeding opening is arranged at the lower end of the sample cover body, and the material feeding opening can conveniently put the product into the sample cover body.

[0008] The utility model is further improved in that the shape of the sample cover body is rectangular, the number of the air regulating parts is five, the five air regulating parts are respectively arranged on different sides of the sample cover body, and the outer plates of the five air regulating parts can slide in an offset manner.

[0009] The utility model is further improved in that a slide groove matched with the outer plate is arranged on the sample cover body, and the outer plate is arranged in the slide groove.

[0010] The utility model is further improved in that five sides of the sample cover body are each provided with two groups of slide grooves, and the two groups of slide grooves are respectively matched with two sides of the outer plate.

[0011] The utility model is further improved in that the material of the inner plate and the outer plate is metal.

[0012] The utility model is further improved in that the aperture size of the first air inlet hole and the second air inlet hole is 40 mm.

[0013] The utility model is further improved in that the width of the outer plate is smaller than the width of the inner plate.

[0014] Compared with the prior art, the beneficial effect of the utility model is as follows: the utility model provides an adjustable wind speed sample cover for a constant temperature and humidity chamber. By adopting this structure, it can effectively solve the problem that when the constant temperature and humidity chamber in the prior art conducts high and low temperature tests on heat dissipation products, the wind speed control does not meet the standard requirements and there are inaccurate test results. By using this product structure, the sample cover body is covered on the product, and by adjusting multiple air regulating parts, the air volume and wind speed flowing through the product can be effectively controlled to adapt to test products with different heat output, ensure the accuracy of the test data, and help improve the competitiveness of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the first state of the adjustable wind speed sample cover used in the constant temperature and humidity chamber;

[0017] Figure 2 It is a schematic diagram of the second state of the adjustable wind speed sample cover used in the constant temperature and humidity chamber;

[0018] Figure 3 This is a schematic diagram of the third state of the adjustable wind speed sample cover used in the constant temperature and humidity chamber. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive, independent, or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present invention may be combined with other embodiments.

[0021] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0022] like Figure 1-3 As shown, the utility model is a sample cover with adjustable wind speed for a constant temperature and humidity chamber, comprising a sample cover body 1, which can be covered on a product, and a plurality of wind regulating parts are arranged on the sample cover body 1, and the wind regulating parts are an inner plate 11 and an outer plate 12 arranged on the sample cover body 1, and the outer plate 12 can slide relatively with respect to the inner plate 11, and a plurality of first air inlet holes 111 are arranged on the inner plate 11, and a second air inlet hole 112 cooperating with the first air inlet hole 111 is arranged on the outer plate 12, and the outer plate 12 can adjust the air inlet speed according to the size of the offset shielding of the first air inlet hole 111.

[0023] By setting the air regulating part, when the first air inlet hole 111 and the second air inlet hole 112 overlap, the wind speed is maximum, and when the first air inlet hole 111 and the second air inlet hole 112 are completely misaligned, no wind enters the sample cover body 1.

[0024] Figure 1 is a schematic diagram of the overlapping state of the first air inlet hole 111 and the second air inlet hole 112, Figure 2 This is a schematic diagram of a state where the front outer panel 12 partially blocks the first air inlet 111 of the inner panel 11. Figure 3 It is a schematic diagram of a state in which the front outer panel 12 completely covers the first air inlet 111 of the inner panel 11 .

[0025] A material feeding opening is arranged at the lower end of the sample cover body 1 , and the product can be conveniently placed in the sample cover body 1 through the arrangement of the material feeding opening.

[0026] The sample cover body 1 is rectangular in shape, and has five air regulating parts, which are respectively arranged on different sides of the sample cover body 1 , and the outer plates 12 of the five air regulating parts can slide in an offset manner.

[0027] By providing air adjustment parts on the five sides of the sample cover body 1, the flexibility of adjusting the wind speed can be increased, and the sample cover body 1 can be prevented from completely blocking the wind from entering the sample cover body 1. The adjustment parts on each side can be adjusted according to the test requirements.

[0028] The sample cover body 1 is provided with a slide groove matched with the outer plate 12, and the outer plate 12 is arranged in the slide groove.

[0029] By setting the sliding groove, the outer plate 12 is made more stable during the sliding process.

[0030] Two sets of slide grooves are provided on the five sides of the sample cover body 1, and the two sets of slide grooves cooperate with the two sides of the outer plate 12 respectively. By cooperating with the outer plate 12, the movement of the outer plate 12 can be made more stable and the outer plate 12 is not easy to fall off.

[0031] The inner plate 11 and the outer plate 12 are made of metal, which can ensure the stability of the sample cover and is not easily affected by the external environment.

[0032] The diameter of the first air inlet hole 111 and the second air inlet hole 112 is 40 mm.

[0033] The width of the outer plate 12 is smaller than that of the inner plate 11. The size of the sample cover body 1 is 440mm*440mm*360mm, the size of the inner plate 11 is 440mm*360mm, the size of the outer plate 12 is 360mm*360mm, and the outer plate 12 and the inner plate 11 each have 5*6 openings evenly distributed, and the gap between the horizontal holes is 40mm.

[0034] Obviously, the number of holes and the sizes of the sample cover body 1, the outer plate 12 and the inner plate 11 are not limited to the above ones, and can also be other sizes, which can be processed according to requirements and can also achieve the effect of the above solution.

[0035] The present embodiment provides an adjustable wind speed sample cover for a constant temperature and humidity chamber, and the working process is as follows: The present embodiment of the utility model provides the advantage of achieving more accurate test results compared to existing test methods.

[0036] First, open the constant temperature and humidity chamber, place the sample cover on the product, and start the constant temperature and humidity chamber air circulation system.

[0037] The test personnel adjust the five air adjustment parts of the sample cover body 1 respectively according to the actual heat dissipation of the sample under test.

[0038] Control the wind speed of the air circulating through the product in the constant temperature and humidity chamber, use an anemometer to conduct actual tests, and ensure the accuracy of the constant temperature and humidity chamber for testing heat dissipation products.

[0039] From the above, it can be seen that the beneficial effect of the utility model is: adopting its mechanism can effectively solve the problem that the wind speed control does not meet the standard requirements and the test results are inaccurate when the constant temperature and humidity chamber in the prior art performs high and low temperature tests on heat dissipation products. By using this product structure, the sample cover body 1 is covered on the product, and by adjusting multiple air adjustment parts, the air volume and wind speed flowing through the product can be effectively controlled to adapt to test products with different heat output, ensure the accuracy of the test data, and help improve the competitiveness of the enterprise.

[0040] The specific implementation methods described above are preferred implementation methods of the present utility model, and are not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to the specific implementation methods. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.

Claims

1. An adjustable wind speed sample cover for a constant temperature and humidity chamber, characterized in that: It includes a sample cover body, which can be covered on the product, and a plurality of air regulating parts are arranged on the sample cover body. The air regulating parts are an inner plate and an outer plate arranged on the sample cover body, and the outer plate can slide relatively with respect to the inner plate. A plurality of first air inlet holes are arranged on the inner plate, and second air inlet holes cooperating with the first air inlet holes are arranged on the outer plate, and the outer plate can adjust the air inlet speed according to the size of the offset shielding of the first air inlet holes.

2. The adjustable wind speed sample cover for a constant temperature and humidity chamber according to claim 1, characterized in that: A material inlet opening is arranged at the lower end of the sample cover body, and the material inlet opening can facilitate the product to be placed into the sample cover body.

3. The adjustable wind speed sample cover for a constant temperature and humidity chamber according to claim 2, characterized in that: The sample cover body is in a rectangular shape, and the number of the air regulating parts is five. The five air regulating parts are respectively arranged on different sides of the sample cover body, and the outer plates of the five air regulating parts can slide in an offset manner.

4. The adjustable wind speed sample cover for a constant temperature and humidity chamber according to claim 3, characterized in that: The sample cover body is provided with a slide groove matched with the outer plate, and the outer plate is arranged in the slide groove.

5. The adjustable wind speed sample cover for a constant temperature and humidity chamber according to claim 4, characterized in that: The five side surfaces of the sample cover body are each provided with two groups of slide grooves, and the two groups of slide grooves are respectively matched with the two sides of the outer plate.

6. The adjustable wind speed sample cover for a constant temperature and humidity chamber according to claim 1, characterized in that: The inner plate and the outer plate are made of metal.

7. The adjustable wind speed sample cover for a constant temperature and humidity chamber according to claim 1, characterized in that: The aperture size of the first air inlet hole and the second air inlet hole is 40 mm.

8. The adjustable wind speed sample cover for a constant temperature and humidity chamber according to claim 1, characterized in that: The width of the outer plate is smaller than the width of the inner plate.

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