Environmental test box

Abstract

The utility model relates to an environmental test box, which comprises a box body and an air door assembly, and is characterized in that the box body is provided with a temperature cavity, the temperature cavity is used for accommodating a test piece, and the temperature cavity is provided with a through hole communicated with the outside; the air door assembly comprises an actuator and an air door plate which are connected, the air door plate comprises a first mounting part and a second mounting part which are connected and arranged in parallel, the air door plate has a first state and a second state, the first mounting part and the second mounting part abut against the hole wall of the through hole in the first state, and the second mounting part abuts against the hole wall of the through hole in the second state. A gap is formed between at least one of the first mounting part and the second mounting part and the hole wall of the through hole, and the actuator drives the air door plate to rotate so as to be switched between the first state and the second state. According to the environment test box provided by the invention, the air door plate is driven to rotate through the actuator, so that the air door plate is switched between the first state and the second state to adjust the temperature in the temperature cavity, manual adjustment is not needed, and compared with manual adjustment and mechanical adjustment, the balance is better.

Description

Technical Field

[0001] The present application relates to the technical field of climate environment testing, and in particular to an environmental testing chamber. Background Art

[0002] An environmental test chamber is a test equipment that can simulate different environments such as high temperature, high pressure, low temperature, negative pressure, high radiation, snowfall, rain or sand and dust. The test chamber can test a very wide range of products, such as products in the fields of aerospace, aviation, petroleum, chemical industry, military, automobile, shipbuilding, communication, electronics, etc. Among them, a temperature test chamber is an environmental testing equipment that can simulate high and low temperatures. After the product is placed in the temperature test chamber, the thermal stress and strain of the product in an extreme high temperature environment or an extreme low temperature environment can be tested. In related technologies, the temperature test chamber usually requires manual adjustment of the damper, and the adjustment balance of the damper is poor, resulting in a deviation between the temperature in the temperature test chamber and the preset experimental temperature. Utility Model Content

[0003] Based on this, it is necessary to provide an environmental test chamber to address the problem of damper adjustment.

[0004] An environmental test chamber, comprising:

[0005] A box body, wherein the box body has a temperature cavity, the temperature cavity is used to accommodate the test piece, and the temperature cavity has a through hole communicating with the outside;

[0006] A damper assembly includes an actuator and a damper plate connected to each other, the damper plate includes a first mounting portion and a second mounting portion connected to each other and arranged in parallel, the damper plate has a first state and a second state, when in the first state, the first mounting portion and the second mounting portion are both in contact with the hole wall of the through hole, when in the second state, there is a gap between at least one of the first mounting portion and the second mounting portion and the hole wall of the through hole, and the actuator drives the damper plate to rotate to switch between the first state and the second state.

[0007] The above-mentioned environmental test chamber is provided with a damper assembly, and the actuator of the damper assembly drives the damper plate to rotate, so that the damper plate is in a first state, at which time the first mounting portion and the second mounting portion of the damper plate are both in contact with the hole wall of the through hole, thereby blocking the through hole, limiting the connection between the temperature chamber and the outside, and facilitating the rapid increase of the temperature in the temperature chamber to meet the experimental requirements. When it is necessary to reduce the temperature in the temperature chamber, the actuator drives the damper plate to rotate, so that there is a gap between at least one of the first mounting portion and the second mounting portion and the hole wall of the through hole, so that the damper plate is in a second state, at which time, the high-temperature air in the temperature chamber can flow out to the outside through the gap and the through hole, so that the temperature in the temperature chamber can be reduced. The environmental test chamber provided by the present application drives the damper plate to rotate by the actuator, so that the damper plate switches between the first state and the second state to adjust the temperature in the temperature chamber, and manual adjustment is not required. Compared with manual adjustment, the balance of mechanical adjustment is better. Through mechanical adjustment, the deviation between the temperature in the temperature test chamber and the preset experimental temperature is smaller.

[0008] In one embodiment, the damper assembly also includes a damper shaft connected to the actuator, the first mounting portion and the second mounting portion are both connected to the damper shaft and are respectively arranged on both sides of the damper shaft, and the actuator can drive the damper shaft to rotate to drive the first mounting portion and the second mounting portion to rotate.

[0009] In one embodiment, the side surface of the first mounting portion facing away from the damper shaft is adapted to the hole wall of the through hole;

[0010] The side surface of the second mounting portion facing away from the damper shaft is matched with the hole wall of the through hole.

[0011] In one embodiment, at least one of the first mounting portion and the second mounting portion is a plate-shaped structure.

[0012] In one of the embodiments, the box body has a accommodating cavity, an air outlet is provided on the box body, the temperature cavity is arranged in the accommodating cavity, and the through hole is connected to the air outlet.

[0013] In one of the embodiments, the box body is provided with an air inlet connected to the through hole.

[0014] In one of the embodiments, it further includes a heat-insulating layer, which is disposed in the accommodating cavity to surround and form the temperature cavity, and the through hole is disposed on the heat-insulating layer.

[0015] In one of the embodiments, a heater is further included. The heater is disposed in the temperature chamber and is used to heat the air in the temperature chamber.

[0016] In one of the embodiments, an impeller is further included. The impeller is disposed in the temperature chamber and is rotatable to adjust the air flow rate in the temperature chamber.

[0017] In one embodiment, a driving source is further included, wherein an output end of the driving source is connected to the impeller, and the driving source can drive the impeller to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a schematic diagram of the structure of the damper assembly provided in the present application.

[0019] FIG2 is a schematic structural diagram of the damper plate provided in the present application when it is in a first state.

[0020] FIG. 3 is a partial enlarged view of point A in FIG. 2 .

[0021] FIG4 is a schematic structural diagram of the damper plate provided in the present application when it is in the second state and half-open.

[0022] FIG. 5 is a partial enlarged view of point B in FIG. 4 .

[0023] FIG6 is a schematic structural diagram of the damper plate provided in the present application when it is in the second state and fully open.

[0024] FIG. 7 is a partial enlarged view of point C in FIG. 6 .

[0025] In the figure:

[0026] 100, box body; 110, temperature chamber; 120, through hole; 130, accommodating chamber; 140, air outlet; 150, air inlet;

[0027] 200, damper assembly; 210, actuator; 220, damper plate; 221, first mounting portion; 222, second mounting portion; 230, damper shaft;

[0028] 300, insulation layer;

[0029] 400, heater;

[0030] 500, impeller;

[0031] 600, driving source;

[0032] 700. Test piece. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0039] The present application provides an environmental test chamber, as shown in Figures 1 to 7, the environmental test chamber includes a box body 100 and a damper assembly 200, the box body 100 has a temperature chamber 110, the temperature chamber 110 is used to accommodate a test piece 700, and the temperature chamber 110 has a through hole 120 connected to the outside; the damper assembly 200 includes an actuator 210 and a damper plate 220 connected to each other, the damper plate 220 includes a first mounting portion 221 and a second mounting portion 222 connected and arranged in parallel, the damper plate 220 has a first state and a second state, when in the first state, the first mounting portion 221 and the second mounting portion 222 are both in contact with the hole wall of the through hole 120 to block the through hole 120; when in the second state, there is a gap between at least one of the first mounting portion 221 and the second mounting portion 222 and the hole wall of the through hole 120, and the actuator 210 drives the damper plate 220 to rotate to switch between the first state and the second state.

[0040] The above-mentioned environmental test chamber is provided with a damper assembly 200, and the actuator 210 of the damper assembly 200 drives the damper plate 220 to rotate, so that the damper plate 220 is in a first state, at which time the first mounting portion 221 and the second mounting portion 222 of the damper plate 220 are both in contact with the hole wall of the through hole 120, thereby blocking the through hole 120 and limiting the connection between the temperature chamber 110 and the outside, so that the temperature in the temperature chamber 110 can be quickly increased to meet the experimental requirements. When it is necessary to reduce the temperature in the temperature chamber 110, the actuator 210 drives the damper plate 220 to rotate, so that there is a gap between at least one of the first mounting portion 221 and the second mounting portion 222 and the hole wall of the through hole 120, so that the damper plate 220 is in a second state, at which time the high-temperature air in the temperature chamber 110 can flow out to the outside through the gap and the through hole 120, so that the temperature in the temperature chamber 110 can be reduced. The environmental test chamber provided in the present application drives the damper plate 220 to rotate through the actuator 210, so that the damper plate 220 switches between the first state and the second state to adjust the temperature in the temperature chamber 110. Manual adjustment is not required. Compared with manual adjustment, mechanical adjustment has better balance. Through mechanical adjustment, the deviation between the temperature in the temperature test chamber and the preset experimental temperature is smaller.

[0041] In some embodiments, as shown in FIG. 1 , the damper assembly 200 further includes a damper shaft 230 connected to the actuator 210, the first mounting portion 221 and the second mounting portion 222 are both connected to the damper shaft 230 and are respectively disposed on both sides of the damper shaft 230, and the actuator 210 can drive the damper shaft 230 to rotate, so as to drive the first mounting portion 221 and the second mounting portion 222 to rotate. By providing the damper shaft 230, not only the output end of the actuator 210 is connected to the damper plate 220, but also the damper shaft 230 is connected to the first mounting portion 221 and the second mounting portion 222, and the first mounting portion 221 and the second mounting portion 222 are both connected to the damper shaft 230 and are respectively disposed on both sides of the damper shaft 230.

[0042] Specifically, as shown in FIG. 1 , the first mounting portion 221 and the second mounting portion 222 are arranged in parallel, and the first mounting portion 221 is connected to the second mounting portion 222 via the damper shaft 230 .

[0043] Specifically, as shown in Fig. 1, at least one of the first mounting portion 221 and the second mounting portion 222 is in a plate-like structure. At least one of the first mounting portion 221 and the second mounting portion 222 is in a plate-like structure, and the blocked area is larger.

[0044] Further, the side surface of the first mounting portion 221 facing away from the damper shaft 230 is matched with the hole wall of the through hole 120; the side surface of the second mounting portion 222 facing away from the damper shaft 230 is matched with the hole wall of the through hole 120. The side surface of the first mounting portion 221 facing away from the damper shaft 230 is matched with the hole wall of the through hole 120, so that the first mounting portion 221 is in contact with the hole wall of the through hole 120 in the first state. The side surface of the second mounting portion 222 facing away from the damper shaft 230 is matched with the hole wall of the through hole 120, so that the second mounting portion 222 is in contact with the hole wall of the through hole 120 in the first state.

[0045] It can be understood that the side of the first mounting portion 221 facing away from the damper shaft 230 is adapted to the hole wall of the through hole 120, and the side of the second mounting portion 222 facing away from the damper shaft 230 is adapted to the hole wall of the through hole 120, which means that the side of the first mounting portion 221 facing away from the damper shaft 230 is adapted to the first preset area of ​​the hole wall of the through hole 120, and the side of the second mounting portion 222 facing away from the damper shaft 230 is adapted to the second preset area of ​​the hole wall of the through hole 120. When the damper plate 220 is in the first state, the first mounting portion 221 abuts against the first preset area, and the second mounting portion 222 abuts against the second preset area.

[0046] In some embodiments, as shown in FIGS. 2 to 7 , the box 100 has a receiving cavity 130, an air outlet 140 is provided on the box 100, the temperature cavity 110 is provided in the receiving cavity 130, and the through hole 120 is connected with the air outlet 140. By providing the receiving cavity 130, it is convenient to accommodate other devices required for the test, and the temperature cavity 110 is provided in the receiving cavity 130, and the air outlet 140 is provided on the box 100, and the air in the temperature cavity 110 flows out to the outside through the through hole 120 and the air outlet 140 in turn.

[0047] 2 to 7 , the box body 100 is provided with an air inlet 150 connected to the through hole 120. The box body 100 is provided with the air inlet 150, which is connected to the through hole 120, and the outside air can flow into the temperature chamber 110 through the air inlet 150 and the through hole 120 in sequence.

[0048] It is understandable that when the damper plate 220 is in the first state, the first mounting portion 221 and the second mounting portion 222 of the damper plate 220 are both in contact with the hole wall of the through hole 120, and the air outside the air inlet 150 cannot flow into the temperature chamber 110, and the air inside the temperature chamber 110 cannot flow out to the outside. When the damper plate 220 is in the second state, the air outlet 140 and the air inlet 150 are both connected to the through hole 120, and the outside air can flow into the temperature chamber 110 through the through hole 120, and the air inside the temperature chamber 110 can also flow out to the outside through the through hole 120 and the air outlet 140.

[0049] It should be noted that when the damper plate 220 is in the second state, the different rotation angles of the damper plate 220 adjust the different air intake and air output. As shown in Figures 4 and 5, the damper plate 220 is in the second state, and the damper plate 220 is in a half-open state, and the air intake and air output are small at this time. The damper plate 220 is further rotated, as shown in Figures 6 and 7, and the damper plate 220 is in the second state, and the damper plate 220 is in a fully open state, and the air intake and air output are maximum at this time.

[0050] In some embodiments, as shown in FIGS. 2 to 7 , the environmental test chamber further includes a thermal insulation layer 300, which is disposed in the accommodating cavity 130 to enclose and form the temperature cavity 110, and a through hole 120 is disposed on the thermal insulation layer 300. By providing the thermal insulation layer 300, the thermal insulation layer 300 not only encloses and forms the temperature cavity 110, but also has a thermal insulation effect, thereby reducing the phenomenon of temperature reduction in the temperature cavity 110.

[0051] In some embodiments, as shown in Figures 2 to 7, the environmental test chamber further includes a heater 400, which is disposed in the temperature chamber 110 and is used to heat the air in the temperature chamber 110. By disposing the heater 400 in the temperature chamber 110, it is convenient to heat the air in the temperature chamber 110 so that the temperature in the temperature chamber 110 meets the test requirements.

[0052] In some embodiments, as shown in FIGS. 2 to 7 , the environmental test chamber further includes an impeller 500, which is disposed in the temperature chamber 110 and can rotate to adjust the air flow rate in the temperature chamber 110. The impeller 500 has blades disposed in the temperature chamber 110, and the rotation of the impeller 500 drives the blades to rotate, thereby adjusting the air flow rate in the temperature chamber 110.

[0053] In some embodiments, as shown in Figures 2 to 7, the environmental test chamber further includes a driving source 600, the output end of the driving source 600 is connected to the impeller 500, and the driving source 600 can drive the impeller 500 to rotate. By providing the driving source 600, the impeller 500 is driven to rotate.

[0054] Specifically, as shown in FIGS. 2 to 7 , the driving source 600 is disposed in the accommodating chamber 130 of the housing 100 , and the output end of the driving source 600 extends through the insulation layer 300 into the temperature chamber 110 and is connected to the impeller 500 .

[0055] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An environmental test chamber, characterized in that: The environmental test chamber comprises: A box body, wherein the box body has a temperature cavity, the temperature cavity is used to accommodate the test piece, and the temperature cavity has a through hole communicating with the outside; A damper assembly includes an actuator and a damper plate connected to each other, the damper plate includes a first mounting portion and a second mounting portion connected to each other and arranged in parallel, the damper plate has a first state and a second state, when in the first state, the first mounting portion and the second mounting portion are both in contact with the hole wall of the through hole, when in the second state, there is a gap between at least one of the first mounting portion and the second mounting portion and the hole wall of the through hole, and the actuator drives the damper plate to rotate to switch between the first state and the second state.

2. The environmental test chamber according to claim 1, characterized in that: The damper assembly also includes a damper shaft connected to the actuator, the first mounting portion and the second mounting portion are both connected to the damper shaft and are respectively arranged on both sides of the damper shaft, and the actuator can drive the damper shaft to rotate to drive the first mounting portion and the second mounting portion to rotate.

3. The environmental test chamber according to claim 2, characterized in that: The side surface of the first mounting portion facing away from the damper shaft is matched with the hole wall of the through hole; and / or, The side surface of the second mounting portion facing away from the damper shaft is matched with the hole wall of the through hole.

4. The environmental test chamber according to claim 2, characterized in that: At least one of the first mounting portion and the second mounting portion is in a plate-shaped structure.

5. The environmental test chamber according to claim 1, characterized in that: The box body has a containing cavity, an air outlet is arranged on the box body, the temperature cavity is arranged in the containing cavity, and the through hole is communicated with the air outlet.

6. The environmental test chamber according to claim 5, characterized in that: The box body is provided with an air inlet communicated with the through hole.

7. The environmental test chamber according to claim 5, characterized in that: It also includes a heat-insulating layer, which is arranged in the accommodating cavity to surround and form the temperature cavity, and the through hole is arranged on the heat-insulating layer.

8. The environmental test chamber according to claim 1, characterized in that: It also includes a heater, which is arranged in the temperature chamber and is used to heat the air in the temperature chamber.

9. The environmental test chamber according to claim 1, characterized in that: It also includes an impeller, which is arranged in the temperature chamber and can rotate to adjust the air flow rate in the temperature chamber.

10. The environmental test chamber according to claim 9, characterized in that: It also includes a driving source, an output end of which is connected to the impeller, and the driving source can drive the impeller to rotate.

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