Protection device and environmental test box

Abstract

The utility model discloses a protection device, which is applied to protecting a risk sample in an environmental test box, and is characterized in that a sensor for detecting abnormal temperature of the risk sample is arranged on the surface of the risk sample, and the protection device comprises a top plate, two hollow side plates, a foldable protection leaf plate and a bottom plate, a containing cavity is defined by the top plate, the side plates, the protection leaf plate and the bottom plate, the risk sample is placed in the center of the containing cavity, the protection device further comprises a lifting rope and an electric heating wire attached to the lifting rope, the foldable protection leaf plate is fixed by the lifting rope, the electric heating wire is electrically connected with a control device, and the control device is electrically connected with the lifting rope. And when the sensor detects that the temperature is abnormal, the lifting rope is burnt out to release the protection leaf plate, and the risk sample is closed after the protection leaf plate is released. Through the protection device, the fire hazard is reduced, the explosion or damage risk of the environment test box is prevented, and the fire protection effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental test chambers, and in particular relates to a protection device and an environmental test chamber. Background Art

[0002] Environmental test chambers are widely used in aerospace products, information electronic instruments, materials, electrical engineering, automobiles, new energy batteries, various electronic components and other related fields. Environmental test chambers simulate the natural environment (such as vibration, temperature, humidity and air pressure) within an effective space.

[0003] With the rapid development of the new energy industry, more and more companies use environmental test chambers to conduct safety tests on new energy samples. At present, the test equipment is mainly environmental test chambers, which are mainly used to simulate high and low temperature working conditions of products, as well as adaptability tests for storage, transportation, and use of products in low temperature environments. In addition, it is necessary to conduct batch testing of product samples, but not all samples are safe. There will be some risky samples during the testing process. Risky samples will be abnormal during testing, such as: the surface temperature of the sample will be higher than the set temperature, and the sample will catch fire. At this time, the environmental test chamber and other samples will catch fire, which may lead to risks such as explosions. In order to ensure the safety of the test process, it is necessary to add certain protective devices in the environmental test chamber. Utility Model Content

[0004] In view of this, the present invention provides a protection device and an environmental test chamber, aiming to solve at least one of the problems existing in the above-mentioned prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A protection device is used to protect risk samples in an environmental test chamber, characterized in that a sensor for detecting temperature abnormalities of the risk samples is arranged on the surface of the risk samples, the protection device comprises a top plate, two hollow side plates, a foldable protection blade and a bottom plate, the top plate, the side plates, the protection blade and the bottom plate form a accommodating cavity, the risk sample is placed in the center of the accommodating cavity, the protection device also comprises a hanging rope and a heating wire attached to the hanging rope, the foldable protection blade is fixed by the hanging rope, the heating wire is electrically connected to a control device, when the sensor detects a temperature abnormality, the hanging rope is burned to release the protection blade, and the protection blade seals the risk sample after being released.

[0007] In some embodiments of the present application, the top plate is welded to the side plate and two protective blades, and the side plate is welded to the other two protective blades.

[0008] In some embodiments of the present application, each of the protective blades has multiple connecting plates, and the protective blades are embedded structures.

[0009] In some embodiments of the present application, the melting point of the sling is greater than or equal to 200 degrees Celsius.

[0010] In order to achieve the above purpose, the utility model also provides the following technical solutions:

[0011] An environmental test box includes a plurality of protective devices, a plurality of risk samples and a box body, wherein the box body is welded with a plurality of containment layers, the risk samples and the protective devices are placed on the containment layers, and the risk samples are separated one by one by the protective devices and the containment layers.

[0012] In some embodiments of the present application, a ventilation baffle is further provided inside the box body, the ventilation baffle has a plurality of ventilation holes, the ventilation baffle is welded to the containing layer and the box body, and / or a heat dissipation channel is also provided between the bottom of the box body and the containing layer closest to the ground.

[0013] In some embodiments of the present application, a flue is provided at the welding points of the top plate, the hollow side plate and the protective blade, a flue hole is opened at the top of the box body, and the flue is adapted to the flue hole.

[0014] In some embodiments of the present application, at least three first cross bars and at least two second cross bars are provided at the bottom of the box body, and the first cross bars and the second cross bars are welded perpendicularly to each other at the bottom of the box body. The bottom of the box body also includes a fixed area away from the top of the box body, and the fixed area is arranged at the intersection of the first cross bars and the second cross bars, and the fixed area is arranged in a triangular shape.

[0015] In some embodiments of the present application, a plurality of pulleys are provided at the bottom of the box body, and the pulleys are welded to the triangular area of ​​the fixed zone to facilitate the movement of the environmental test chamber; and / or, a plurality of fixing parts are also provided at the bottom of the box body, and the fixing parts are welded on the fixed zone near the intersection of the first cross bar and the second cross bar.

[0016] In some embodiments of the present application, the number of the fixing areas, fixing members, and pulleys is equal.

[0017] The beneficial effect achieved by the utility model is as follows: by arranging a protective device around the sample, when the sample temperature is abnormal or a fire occurs, the sample surface sensor transfers heat to the heating wire through heat transfer, and then burns the suspension rope to release the protective blade, so that the failed sample is in a closed environment, isolating the oxygen that causes the fire, and the temperature of the failed sample is reduced or the fire source on the surface of the failed sample is extinguished, thereby reducing the fire hazard, preventing the environmental test chamber from exploding or being damaged, achieving the fire-fighting effect, and ensuring the safety of the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the protection device of the utility model when the protection blade is not released.

[0019] Figure 2 This is a schematic diagram of the protective blade of the protective device of the utility model in the released state.

[0020] Figure 3 It is an overall schematic diagram of a protective blade of a protective device in the environmental test chamber of the utility model in a released state.

[0021] Figure 4 This is an overall view of the bottom of the environmental test chamber of the utility model.

[0022] Numbers in the figure: protective device 1; top plate 11; side plate 12; protective blade 13; connecting plate 131; accommodating chamber 14; bottom plate 15; embedded structure 16; risk sample 2; environmental test chamber 3; box body 31; accommodating layer 32; first cross bar 33; second cross bar 34; fixing area 35; intersection 36; ventilation baffle 4; ventilation hole 41; heat dissipation duct 5; flue 6; pulley 7; fixing part 8; flue hole 9. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0026] Please refer to Figure 1-Figure 4A protection device 1 is used to protect a risk sample 2 in an environmental test chamber 3. The surface of the risk sample 2 is provided with a sensor (not shown in the figure) for detecting abnormal temperature of the risk sample, which is usually a temperature sensor, including but not limited to a thermistor, a thermocouple, an infrared sensor, a state change sensor, etc. The protection device 1 includes a top plate 11, two hollow side plates 12 and four protection blades 13. The two hollow side plates are arranged oppositely. The protection blades 13 are partially arranged on the upper part of the side plates 12. The other two opposite protection blades 13 are directly connected to the top plate 11. The protection blades 13 are in a foldable roll shape. The top plate 11, the two side plates 12, the four protection blades 13, and the bottom plate 15 form a receiving cavity 14. The risk sample 2 is placed in the center of the receiving cavity 14. When the risk sample 2 is not abnormal, the protection blades 13 are folded and placed on the upper part of the side plates 12 or at the connection of the top plate 11. At this time, the risk sample 2 can be observed from the outside. The protection device 1 also includes a hanging rope (not shown in the figure) and a heating wire (not shown in the figure) attached to the hanging rope (not shown in the figure). The foldable protection leaf 13 is fixed by the hanging rope (not shown in the figure) or can be pulled. The heating wire (not shown in the figure) is electrically connected to the control device (not shown in the figure). When the sensor (not shown in the figure) detects a temperature abnormality, the hanging rope (not shown in the figure) is burned to release the protection leaf 13. After the protection leaf 13 is released, it seals the risk sample 2. At this time, the entire protection device 1 is sealed inside and isolated from the outside air, which can restore the surface temperature of the risk sample 2 to normal or extinguish the fire source on the surface of the risk sample 2 to prevent it from causing abnormal temperatures of other samples or causing other samples to catch fire, thereby causing safety problems. Therefore, this protection device 1 can effectively reduce safety risks during the test.

[0027] In some embodiments of the present application, the top plate 11 is welded to the side plate 12 and the two protective blades 13, and the side plate 12 is welded to the other two protective blades 13. This welding structure can make the protective device more stable, can more effectively isolate the external air, enhance the sealing, and can further reduce the safety risks during the test process.

[0028] In some embodiments of the present application, each of the protective blades 13 has multiple connecting plates 131, and the connecting plates 131 are slidably connected to each other. When the surface sensor of the risk sample 2 fails, the protective blade 13 does not land as planned, and external staff can also observe the state of the risk sample 2 to take corresponding fire prevention measures. The connecting plate 131 at the bottom of the protective blade 13 adopts an embedded structure 16, which can make the seal more complete, improve the sealing performance, and reduce the risk of fire prevention.

[0029] In some embodiments of the present application, the melting point of the suspension rope (not shown in the figure) is greater than or equal to 200 degrees Celsius. Since the temperature of the risk sample 2 will not be lower than 200 degrees Celsius when an abnormality occurs during the test, if the melting point of the suspension rope is too low, it may happen that the risk sample 2 does not have an abnormality, but the protective blade 13 drops to close the risk sample 2 and thus affects the test process. Therefore, the melting point of the suspension rope (not shown in the figure) should be greater than or equal to 200 degrees Celsius.

[0030] In some embodiments of the present application, an environmental test box 3 is also provided, including a plurality of protective devices 1, a plurality of risk samples 2 and a box body 31. The number of the protective devices 1 and the risk samples 2 is equal. The box body 31 is welded with multiple containment layers 32, at least two containment layers 32, and may be 3, 4, or 5 layers, depending on the size of the environmental test box 3. The attached figure takes 4 layers as an example. The risk samples 2 and the protective devices 1 are placed on the containment layer 32, and the risk samples 2 are separated one by one by the protective devices 1 and the containment layer 32. Separation one by one can reduce safety risks. If they are set together, the risk samples 2 without abnormalities will be detected and the abnormal risk samples 2 will be invalidated by heat transfer, which can protect the risk samples 2 without abnormalities.

[0031] In some embodiments of the present application, a ventilation baffle 4 is further provided inside the box body 31, and a plurality of ventilation holes 41 are provided on the ventilation baffle. The number of ventilation holes 41 is not limited. The ventilation baffle is provided so that the wind can blow uniformly over the surface of the risk sample 2 during normal testing of the environmental test box 3, and the wind speed to which each risk sample 2 is subjected is the same. The ventilation baffle 4 is welded with the containing layer 32 and the box body 31. The three are welded to enhance the stability of the overall environmental test box and prevent it from being blown down by the wind. And / or; a heat dissipation channel 5 is also provided between the bottom of the box body 31 and the containing layer 32 closest to the ground, which can discharge the heat of the entire environmental test box 3 to prevent the environmental test box 3 from exploding due to excessive temperature.

[0032] In some embodiments of the present application, a flue 6 is provided at the welding point of the top plate 11, the hollow side plate 12 and the protective blade 13. When some risk samples 2 are detected to have abnormal temperature, fire or other failure conditions, the protective blade 13 descends to seal the risk samples 2. However, due to the smoke caused by the fire source inside, a flue 6 is provided at this time so that the smoke in the protective device 1 can be discharged from the flue 6, thereby reducing the fire hazard of the environmental test chamber 6. A flue hole 9 is provided at the top of the box body 31. The flue 6 is adapted to the flue hole 9. The number of flue holes 9 is equal to the number of risk samples 2 placed in the first containing layer 32. Secondly, except for the protective device 1 closest to the top of the box body 31, all the protective devices 1 on the other containing layers 32 have flues 6. Their channels are connected and connected together, so that the smoke inside the protective devices 1 of the other containing layers 32 can be discharged along the channels.

[0033] In some embodiments of the present application, at least three first crossbars 33 and at least two second crossbars 34 are provided at the bottom of the box body 31. The first crossbars 33 and the second crossbars 34 are welded perpendicularly to each other at the bottom of the box body 31. The reason why the first crossbars 33 and the second crossbars 34 are provided at the bottom is also to enhance the stability of the overall device of the environmental test box. The bottom of the box body 31 also includes a fixed area 35 away from the top of the box body. The fixed area 35 is provided at the intersection 36 of the first crossbar 33 and the second crossbar 34. The fixed area is provided in a triangular shape, or in a quadrilateral or pentagonal shape. However, the triangle shape is relatively more material-saving and cost-reducing.

[0034] In some embodiments of the present application, a plurality of pulleys 7 are provided at the bottom of the box 31, and the pulleys 7 are welded on the triangular area of ​​the fixing area 35. The ordinary environmental test box 3 is usually heavy and difficult to move. The pulleys 7 can be provided to facilitate the staff to move the environmental test box and facilitate the operation. And / or, a plurality of fixings 8 are also provided at the bottom of the box 31, and the fixings 8 are welded on the intersection 36 of the fixing area 35 near the first cross bar 33 and the second cross bar 34, wherein the fixings 8 can be set to a telescopic shape. When used to be fixed in one place, the fixings 8 are adjusted to a length higher than the pulley 7, so as to prevent the pulley from moving the environmental test box 3 at will. When it needs to be moved, the fixings 8 are adjusted to a length lower than the pulley 7, so that the environmental test box 3 can be easily moved. The bottom 8 of the fixings is made of soft rubber material to reduce the pressure on the ground caused by the weight of the environmental test box 3.

[0035] In some embodiments of the present application, the number of the fixing areas 35 , the fixing members 8 , and the pulleys 7 are equal, which can enhance the stability of the environmental testing box 3 .

[0036] The utility model arranges a protection device around the sample. When the sample temperature is abnormal or a fire occurs, the sample surface sensor transfers heat to the heating wire through heat transfer, which then burns the suspension rope to release the protection blade, so that the failed sample is in a closed environment, isolating the oxygen that causes the fire, and the temperature of the failed sample is reduced or the fire source on the surface of the failed sample is extinguished, thereby reducing the fire hazard, preventing the environmental test chamber from exploding or being damaged, achieving the fire-fighting effect, and ensuring the safety during the test.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A protective device, used to protect risk samples in an environmental test chamber, characterized in that: A sensor for detecting temperature abnormality of the risk sample is arranged on the surface of the risk sample; the protection device comprises a top plate, two hollow side plates, a foldable protection leaf plate and a bottom plate; the top plate, the side plates, the protection leaf plate and the bottom plate form a containing cavity; the risk sample is placed in the center of the containing cavity; the protection device further comprises a hanging rope and a heating wire attached to the hanging rope; the foldable protection leaf plate is fixed by the hanging rope; the heating wire is electrically connected to a control device; when the sensor detects temperature abnormality, the hanging rope is burned to release the protection leaf plate; the protection leaf plate seals the risk sample after being released.

2. The protection device according to claim 1, characterized in that: The top plate is welded to the side plate and two protective blades, and the side plate is welded to the other two protective blades.

3. The protection device according to claim 1, characterized in that: Each of the protective blades has a plurality of connecting plates, and the protective blades are embedded structures.

4. The protection device according to claim 1, characterized in that: The melting point of the sling is greater than or equal to 200 degrees Celsius.

5. An environmental test chamber, characterized in that: It comprises a plurality of protection devices as described in any one of claims 1 to 4, a plurality of risk samples and a box body, wherein the box body is welded with multiple containment layers, the risk samples and the protection devices are placed on the containment layers, and the risk samples are separated one by one by the protection devices and the containment layers.

6. The environmental test chamber according to claim 5, characterized in that: A ventilation baffle is also arranged inside the box body, and a plurality of ventilation holes are arranged on the ventilation baffle. The ventilation baffle is welded to the containing layer and the box body, and / or a heat dissipation channel is also arranged between the bottom of the box body and the containing layer close to the ground.

7. The environmental test chamber according to claim 5, characterized in that: A flue is arranged at the welding point of the top plate, the hollow side plate and the protective blade, and a flue hole is opened on the top of the box body, and the flue is adapted to the flue hole.

8. The environmental test chamber according to claim 5, characterized in that: At least three first cross bars and at least two second cross bars are arranged at the bottom of the box body. The first cross bars and the second cross bars are welded perpendicularly to each other at the bottom of the box body. The bottom of the box body also includes a fixed area away from the top of the box body. The fixed area is arranged at the intersection of the first cross bars and the second cross bars. The fixed area is arranged in a triangular shape.

9. The environmental test chamber according to claim 8, characterized in that: A plurality of pulleys are provided at the bottom of the box body, and the pulleys are welded to the triangular area of ​​the fixing zone to facilitate the movement of the environmental test box; and / or a plurality of fixing parts are also provided at the bottom of the box body, and the fixing parts are welded to the fixing zone near the intersection of the first cross bar and the second cross bar.

10. The environmental test chamber according to claim 9, characterized in that: The number of the fixing areas, fixing parts and pulleys is equal.

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