Air return structure of high-temperature aging test box

Abstract

An air return structure of a high-temperature aging test box is arranged in the aging test box and comprises a box body, an air return pipe, a first air return pipe, a second air return pipe, a first air return pipe and a second air return pipe, a mounting space is defined between the top plate and the top of the box body, and an air blowing assembly used for blowing air is arranged in the mounting space; the air return plate is provided with a window communicated with the air return duct and the experiment space, the window is provided with a plurality of air deflectors which are arranged side by side, and an air return channel for air flow to pass through is defined between the air deflectors; and a gap is formed between the evaporator and the end, located at the air return duct, of the air return channel. Under the condition that the air flows back, the air needs to flow through the evaporator, so that the cooled air is heated again and is blown into the experiment space again by the air blowing assembly along the air return duct and the installation space, and a high-temperature aging experiment is carried out on the workpiece.

Description

TECHNICAL FIELD

[0001] The utility model relates to high temperature ageing test box technical field, concretely relates to a high temperature ageing test box's air return structure. BACKGROUND

[0002] High temperature ageing test box is mainly used to provide high temperature environment to satisfy the user under high temperature environment to the product is ageing test. High temperature ageing test box produces heat through heater, makes the temperature of the box, and through internal wind circulation system brings the heat to the box, makes the temperature distribution of the box even.

[0003] In the ageing test box of present, through the air blower circulation high temperature airflow, so that the temperature in the experimental space keeps constant, but, after the air blower blows high temperature airflow into the experimental space, gas directly backflow along the exhaust port arranged on the lateral wall of experimental space, the rapid backflow of high temperature gas will cause the temperature loss in the experimental space too fast, need to increase the power of heating component to guarantee that the experimental space has higher problem. This leads to the energy consumption of high when carrying out ageing experiment.

[0004] Therefore, the technical scheme is needed to solve the above technical problem. UTILITY MODEL CONTENT

[0005] The utility model discloses a kind of air return structures of high temperature ageing test box, to solve above technical problem, the utility model uses following technical scheme:

[0006] A kind of air return structure of high temperature ageing test box, is arranged in the ageing test box inside, including:

[0007] Box, the box is defined in the experimental space for ageing test inside;

[0008] Top plate, the top plate is arranged in the upper side of the experimental space, and is defined between the top plate and the top of the box to install space, the installation space is equipped with the air blower component for blowing inside;

[0009] Air return plate, along vertical direction fixedly arranged in the experimental space, and with the lateral wall of the experimental space between definition to install the air return channel that communicates with the installation space, the air return plate is opened with the window of the experimental space with the air return channel, and the window is provided with a plurality of mutually side-by-side arranged air deflector on it, the air deflector between definition to supply the air return passage for airflow;

[0010] Evaporator, the evaporator is arranged in the air return channel with the window corresponding, and with the air return passage between the air return channel one end has a gap.

[0011] Further, the upper end of the air deflector is inclined towards the evaporator, and the lower end of the air deflector is inclined towards the experimental space, so that the entrance of the return air passage defined between the two air deflectors is located below and inclined towards the experimental space, and the exit is located above and inclined towards the evaporator.

[0012] Further, the air deflector is further provided with an air exhaust portion located beside the window and arranged in the vertical direction, and a plurality of air exhaust openings in a matrix arrangement are arranged on the air exhaust portion.

[0013] Further, the air deflector is further provided with an air exhaust portion located beside the window and arranged in the vertical direction, and a plurality of air exhaust openings in a matrix arrangement are arranged on the air exhaust portion.

[0014] Further, the window is arranged in at least two in the vertical direction.

[0015] Further, a spacing portion is defined between the two adjacent windows, and a communication opening for communicating the experimental space and the return air passage is arranged on the spacing portion.

[0016] The beneficial effects of the present application are as follows:

[0017] Through the above-mentioned return air structure, the high-temperature air can be slowed down in the return process in the experimental space by the barrier of the evaporator, so that the high-temperature air in the experimental space can be ensured to be sufficient and the room temperature can be kept at a relatively constant temperature, thereby avoiding the temperature loss too fast and avoiding the case of high energy consumption. In the case of air return, the air needs to flow through the evaporator, so that the air with reduced temperature is heated again and blown into the experimental space again by the air blowing assembly along the return air passage and the installation space, and the workpiece is subjected to high-temperature aging test. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the present application without the door.

[0019] Figure 2 It is a sectional view of the present application.

[0020] Figure 3 It is an exploded structural view of the air deflector and the evaporator in the present application.

[0021] Figure 4 It is a sectional view of the air deflector and the evaporator in the present application in the assembled state.

[0022] In the figure: 100 - box; 101 - experimental space; 110 - top plate; 111 - mounting space; 112 - air blowing assembly; 120 - return air plate; 121 - return air duct; 122 - window; 123 - air deflector; 124 - return air passage; 130 - evaporator; 140 - air exhaust part; 141 - air exhaust port; 125 - cavity; 126 - spacing part; 127 - communication port. DETAILED DESCRIPTION

[0023] For the convenience of those skilled in the art, the present application is further described below in conjunction with the embodiments and the accompanying drawings, and the content mentioned in the embodiments is not a limitation of the present application. The present application is described in detail below in conjunction with the accompanying drawings.

[0024] The embodiment of the present application provides a return air structure of a high-temperature aging test box, which can reduce the speed of backflow during the backflow of high-temperature air in the experimental space 101, insulate the experimental space 101, and reduce energy consumption during the aging experiment. Meanwhile, the evaporator 130 can further heat the backflow air during the backflow of high-temperature air, so that the air can maintain a high temperature under the blowing and circulation of the air blower, thereby better performing the aging experiment on the product.

[0025] Specifically, in the embodiment, as shown in the figure, Figures 1-4 A return air structure of a high-temperature aging test box is arranged in the interior of the aging test box, which comprises a box 100, a top plate 110, a return air plate 120, and an evaporator 130. The box 100 defines an experimental space 101 for the aging experiment. The top plate 110 is arranged on the upper side of the experimental space 101 and defines a mounting space 111 with the top of the box 100. The air blowing assembly 112 for blowing air is arranged in the mounting space 111. The return air plate 120 is fixedly arranged in the experimental space 101 in the vertical direction and defines a return air duct 121 with the side wall of the experimental space 101. The return air duct 121 is in communication with the mounting space 111. The window 122 is arranged on the return air plate 120 and the experimental space 101. A plurality of air deflectors 123 are arranged on the window 122. The air deflectors 123 are arranged side by side and define a return air passage 124 for air flow. The evaporator 130 is arranged in the return air duct 121 corresponding to the window 122. There is a gap between the evaporator 130 and the return air passage 124 at one end of the return air duct 121.

[0026] In the process of air return in the aging test chamber, the air blowing assembly 112 blows high-temperature air into the experimental space 101 to conduct high-temperature aging test on the workpiece, and after the experimental space 101 is filled with high-temperature air, the air return channel 124 defined between the air guide plates 123 arranged on the air return plate 120 flows out. At this time, since the evaporator 130 is arranged above the window 122 and defines a gap with the air return channel 124, the air flow is hindered by the evaporator 130 in the process of air return, so that the air return speed is reduced, thereby ensuring that the high-temperature air in the experimental space 101 is sufficient and the temperature in the experimental space 101 does not decrease rapidly. It is worth noting that in the process of air flowing through the evaporator 130, the air is heated by the evaporator 130, and then flows along the air return channel 121 towards the installation space 111 under the suction of the air blowing assembly 112, and is blown into the experimental space 101 by the air blowing assembly 112 again. It is worth noting that in the present embodiment, the evaporator 130 heats the air flowing through the chamber by releasing heat through expansion, so that the air in the air return channel 121 is heated again.

[0027] Through the above-mentioned air return structure, the high-temperature air can be slowed down in the process of air return in the experimental space 101 by the evaporator 130, so that the high-temperature air in the experimental space 101 is sufficient and the room temperature is kept at a relatively constant temperature, thereby avoiding rapid temperature loss and high energy consumption. In the case of air return, the air needs to flow through the evaporator 130, so that the air which has been reduced in temperature is heated again and blown into the experimental space 101 by the air blowing assembly 112 along the air return channel 121 and the installation space 111. In this way, high-temperature aging test can be conducted on the workpiece.

[0028] In the present embodiment, in order to further improve the limiting effect of air return on air, the upper end of the air guide plate 123 is inclined towards the evaporator 130, and the lower end of the air guide plate 123 is inclined towards the experimental space 101, so that the inlet end of the air return channel 124 defined between the two air guide plates 123 is located below and inclined towards the experimental space 101, and the outlet end is located above and inclined towards the evaporator 130. By setting the air guide plate 123 to be inclined, the air return channel 124 is also set to be inclined. In the case of air return, the air needs to enter the air return channel 124 at the lower inlet end and blow towards the evaporator 130. At this time, the air guide plate 123 blocks the air flow, which changes the flow. At this time, the air pressure in the experimental space 101 will increase, which can ensure that the room temperature in the experimental space 101 is at a high temperature.

[0029] In the embodiment, in order to avoid the temperature in the experiment space 101 being too high, the air discharge part 140 is arranged on the return air plate 120 and is arranged along the vertical direction beside the window 122, and a plurality of air discharge openings 141 arranged in a matrix are arranged on the air discharge part 140. That is, a part of the air can flow out through the air discharge openings 141. It is worth noting that the air discharge openings 141 are arranged at one end of the return air plate 120 close to the cabinet door of the cabinet 100, so that the air far away from the placement position of the workpiece can be prevented from flowing out through the air discharge openings 141.

[0030] In the embodiment, in order to install the evaporator 130, as shown in the figure, the return air plate 120 is provided with a concave cavity 125 on the side facing the return air duct 121, the window 122 is arranged on the bottom wall of the cavity 125, and the evaporator 130 is fixedly arranged in the cavity 125. Figures 3-4

[0031] In order to ensure the return air effect and the heating capacity of the return air, at least two windows 122 are arranged side by side along the vertical direction, and the evaporator 130 is also provided with at least two.

[0032] In the embodiment, a spacing part 126 is defined between the two adjacent windows 122, and a communication opening 127 communicating the experiment space 101 and the return air duct 121 is arranged on the spacing part 126. Through the communication opening 127, the air close to the workpiece can be returned. Since the communication opening 127 is arranged between the two windows 122, the area of the communication opening 127 is small, and the air cannot be discharged too quickly.

[0033] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as above in the preferred embodiment, it is not intended to limit the utility model. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the utility model, and the equivalent embodiments with equivalent changes are equivalent. Any simple modification, equivalent change and modification of the above embodiment within the technical solution of the utility model are within the scope of the technical solution of the utility model.​

Claims

1. A return air structure of a high-temperature aging test chamber, provided inside the aging test chamber, characterized by, The utility model relates to an aging test device, comprising: a box body defining an experimental space for aging test inside; a top plate arranged on the upper side of the experimental space and defining an installation space with the top of the box body, wherein a blowing assembly for blowing is arranged in the installation space; a return air plate fixedly arranged in the experimental space in the vertical direction and defining a return air duct communicating with the installation space with the side wall of the experimental space, wherein a plurality of mutually side-by-side arranged air deflectors are arranged on the return air plate, and the air deflectors define a return air passage for airflow between them; an evaporator arranged in the return air duct corresponding to the window and having a gap between the return air passage and one end of the return air duct.

2. The return air structure of a high-temperature aging test chamber according to claim 1, wherein The upper end of the air deflector is inclined towards the evaporator, and the lower end of the air deflector is inclined towards the experimental space, so that the inlet end of the return air passage defined between the two air deflectors is located below and inclined towards the experimental space, and the outlet end is located above and inclined towards the evaporator.

3. The return air structure of a high-temperature aging test chamber according to claim 2, wherein An air discharge part is further arranged on the return air plate beside the window and in the vertical direction, and a plurality of matrix-arranged air discharge openings are arranged on the air discharge part.

4. The return air structure of a high-temperature aging test chamber according to claim 1, wherein The return air plate is provided with a concave cavity towards the side of the return air duct, the window is arranged on the bottom wall of the cavity, and the evaporator is fixedly arranged in the cavity.

5. The return air structure of a high temperature aging test chamber according to claim 1, wherein The windows are arranged in at least two rows side by side in the vertical direction.

6. The return air structure of a high-temperature aging test chamber according to claim 5, wherein An interval part is defined between the two adjacent windows, and a communication opening communicating the experimental space with the return air duct is arranged on the interval part.

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