KR20190104503A - Environment test device - Google Patents

Abstract

The present invention provides an environment test device in which water drops discharged from an air blower are not spattered to a test space. The environment test device (1) includes: an air conditioning path (7) having a heater, an evaporator, and the air blower; and a test chamber (6) in which a specimen is installed. The environment test device circulates air between the air conditioning path (7) and the test chamber (6) to form a desired environment in the test chamber (6). A closed wall (16) dividing the upper part and the lower part is formed in the air conditioning path (7). The closed wall (16) includes: an air distribution opening (17) to which a discharge port (36) of the air blower (27) is connected; and a liquid distribution opening (11) in which a liquid is mainly distributed. Also, the liquid distribution opening (11) is set to be positioned in an area less influenced by wind discharged from the air blower (27) on the lower side in a flow direction of the air than the air distribution opening (17).

Description

Environmental test device {ENVIRONMENT TEST DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an environmental test apparatus having a function of adjusting the temperature environment of a waste space, and more particularly, to an environmental test apparatus having a blower for stirring air in the waste space.

An apparatus for testing the performance and durability of a product or a material (hereinafter simply referred to as a sample body) includes an environmental test apparatus. This type of environmental test apparatus is provided with a test space in which a sample object to be tested is placed, and adjusts the temperature and humidity in the test space to a desired test environment. In other words, such an environmental test apparatus may include a heater that heats air, a cooler that cools the air (eg, an evaporator that forms part of a refrigeration cycle), and also within the test space, to adjust the interior of the test space to the desired test environment. At least a blower for stirring air is mounted.

For example, Patent Literature 1 arranges a test space in which a sample body is placed by a partition wall in one constant temperature and humidity chamber, and each of the above-described devices (heaters, coolers, blowers, etc.) contributing to the formation of a test environment. An environmental test apparatus divided into air conditioning spaces is disclosed. Then, the environmental test apparatus arranges a heater or a cooler on the upstream side of the air flow direction rather than a blower, sends out air (hereinafter referred to as control air) temperature controlled by the heater or the cooler to the test space side by means of a blower, and tests It is a structure which adjusts the temperature and humidity in space.

However, in such an environmental test apparatus, when adjusting the inside of a test space to a desired test environment, water droplets may be discharged together with the adjustment air sent from a blower. That is, the water droplets attached to the evaporator may be mixed in the blower and discharged from the blower as it is. Similarly, water vapor contained in the control air introduced into the blower may condense under the influence of an unintentional temperature change or the like to form water droplets, and the water droplets may be discharged from the blower. In particular, the latter tends to occur when the inside of the test space is controlled in a high humidity state.

That is, when adjusting the inside of a test space to a high humidity test environment, the adjustment air of a high humidity state is introduce | transduced into a blower. The air in this high humidity state is likely to reach a saturation state even by a slight temperature drop and generate water droplets. For this reason, the adjustment air of a high humidity state is introduce | transduced into a blower, and when the temperature of the said adjustment air is small but falls in a blower, the adjustment air becomes saturated and some water droplets generate | occur | produce. The water droplets generated in this way are discharged as if they are scattered from the discharge port of the blower by the flow of the adjusting air, or are discharged to rise along the inner wall leading to the discharge port of the blower.

In this way, when water droplets are discharged from the blower, they may scatter to the test space side. In addition, the scattered water droplets may adhere to the sample body during the environmental test. That is, when water droplets are discharged from the blower, there is a possibility that the sample body or the test itself may be adversely affected.

Therefore, in order to solve such a problem, in the environmental testing apparatus 101 of the prior art, as shown in FIG. 13, the discharge port 115 faces upwards with the blower 113 arrange | positioned in the air conditioning space 102. As shown in FIG. It is installed in a posture. According to such a structure, since the adjustment air discharged from the blower 113 can be sent upwards once, it becomes possible to suppress that the water droplet conveyed with the adjustment air is scattered directly to the test space 103 side. .

Japanese Laid-Open Patent Publication No. 2011-163585

However, in the environmental testing apparatus 101 of the prior art, the scattering of the water droplets to the test space 103 side could not be completely prevented. That is, in the conventional environmental test apparatus 101, although the droplets discharged together with the adjustment air are collected near the discharge port 115 of the blower 113, the collected droplets are generated by subsequent adjustment air discharged from the discharge port 115. There was a case where it was blown to the test space 103 side.

This will be described in detail below.

In the above-described environmental test apparatus 101, the other part except the discharge port 115 of the blower 113 is completely closed by the blocking wall 105. Further, the water droplets discharged upward from the discharge port 115 of the blower 113 fall to a position not far from the discharge port 115 by gravity. That is, water droplets discharged from the blower 113 and dropped by gravity, or water droplets raised along the inner wall of the blower 113, are collected in the closed wall 105 as shown in FIG. 14A. After that, the water droplets (hereinafter, also referred to as water droplets after falling) that fall on the blocking wall 105 move under the influence of the flow of air discharged from the blower 113. That is, the water droplets after the drop move toward the side with less influence of the wind of the blower 113 as a whole, and form a large puddle as shown in Fig. 14B. When the puddle grows to a predetermined size that can be affected by the wind of the blower, as shown in Fig. 14C, a part of the puddle is separated and moved to the test space 103 side, and eventually the separation is performed. The water droplets are scattered into the test space 103.

As described above, the environmental test apparatus of the prior art can prevent the water droplets discharged from the blower from being directly scattered in the test space, but sometimes the water droplets discharged from the blower and collected near the discharge port are scattered into the test space.

Therefore, in order to prevent the scattering of water droplets on the obstruction wall, a method of providing a filter that prevents the droplets of water droplets downstream from the discharge port of the blower is considered. However, when this measure is adopted, it is possible to prevent the drop of water droplets, but the filter itself becomes an air resistance, and there is a concern that the amount of air to the test space drops considerably. And accordingly, there exists a possibility that it will become difficult to produce a desired test environment in a test space. If the filter is clogged, the original function of the environmental test apparatus may be impaired.

In addition, as other measures, it is conceivable to perform an environmental test by reducing the air blowing amount of the blower than usual. Thereby, the scattering suppression effect of the water droplet which fell on the blocking wall can be anticipated. However, when this measure is adopted, the flow rate of the air passing through the heater or the cooler also decreases due to the decrease in the airflow amount of the blower, so that the heat exchange efficiency is greatly reduced, which may adversely affect the environmental test itself. .

Then, in view of the problem of the prior art, it is an object of this invention to provide the environmental test apparatus which the water droplet discharged from a blower does not scatter to a test space side.

The environmental test apparatus of the present invention provided to solve the above problems has an air conditioning space having a heat source and a blower, and a test space in which a sample body is disposed, and circulates gas between the air conditioning space and the test space to provide a test space. An environmental test apparatus for forming a desired environment, the air conditioning space is formed with a blocking wall for dividing the upper and lower, an air distribution opening mainly for the flow of gas is formed in the blocking wall, the blower has a discharge port, A discharge port is provided so as to communicate with the air flow opening, and a liquid flow opening mainly for circulating liquid is formed between the air flow opening and the test space.

The environmental test apparatus of the present invention has a configuration in which a liquid flow opening mainly in which liquid flows is formed between an air flow opening that communicates with the discharge port of the blower and a test space located downstream of the gas flow direction with respect to the air flow opening. . That is, the liquid flow opening is located downstream of the gas flow direction than the air flow opening based on the test space. As a result, even when the water droplets are discharged from the blower and the water droplets fall on the closed wall, the water droplets can be discharged through the liquid flow opening before reaching the test space side. Therefore, according to the present invention, since the water droplets discharged from the blower can be discharged from the liquid flow opening, the water droplets can be prevented from scattering to the test space side.

Here, in order to efficiently drain the water droplets discharged from the blower and collected on the closed wall, positioning of the liquid flow opening is important. As described above, the water droplets discharged from the blower and dropped onto the closed wall move toward the "area of small wind influence" by the subsequent wind discharged from the blower. In addition, in this "area where the influence of the wind of a blower is small", an environmental test is actually performed and it can determine by visually seeing the state of collection of water droplets. That is, if the liquid flow opening is formed in the "area where the influence of the wind of a blower is small" determined in this way, it is possible to collect water droplets at a predetermined position even without providing a gradient, etc. Can be avoided.

Therefore, in the environmental test apparatus of the present invention provided on the basis of such knowledge, it is preferable to form the liquid flow opening in a region where the influence of the wind by the blower is small in the environmental test apparatus of the above-described configuration.

According to such a structure, since the water droplet which fell on the closed wall can be discharged | emitted from the liquid distribution opening formed in "the area | region where the influence of the wind by a blower is small," it raises the cost hardly because of the processing effort of a closed wall. . In addition, since water droplets tend to collect in the "region where the influence of the wind by a blower is small", efficient drainage can be performed. That is, according to this invention, the scattering of the water droplet to a test space side can be prevented more effectively.

The environmental test apparatus of the present invention has a space dividing wall partitioning between an air conditioning space and a test space, the space dividing wall is connected to the occlusion wall, and the liquid flow opening is formed in the space dividing wall or the occlusion wall. It is preferable.

In the environmental test apparatus of the present invention, it is preferable that the opening area of the liquid flow opening is smaller than that of the air flow opening.

According to such a structure, since the opening area of the liquid flow opening is smaller than that of the air flow opening, the flow rate of the gas passing through the liquid flow opening can be suppressed. That is, in the present invention, since the resistance of the air flow opening is smaller than that of passing through the liquid flow opening, the phenomenon that the gas passes through the liquid flow opening can be suppressed.

It is preferable that the environmental test apparatus of this invention provided two or more said liquid flow openings.

According to such a structure, since the water droplet which fell to the closed wall can be discharged | emitted by the some liquid flow opening, it is possible to implement more efficient drainage.

In the environmental test apparatus of the present invention, the space dividing wall has a butt wall bent downwardly orthogonally from a partition upper surface of the upper end side, and a slit is formed on the butt wall, and the space dividing wall and the closed wall are the It is preferable that the blocking wall is connected to the butt wall, and the slit functions as the liquid flow opening.

In the environmental test apparatus of the present invention, it is preferable that the closure wall has a slit formed at an end side thereof, and the slit functions as the liquid flow opening.

The environmental test apparatus of the present invention preferably has a space dividing wall partitioning between the air conditioning space and the test space, and the liquid flow opening is a gap between the space dividing wall and the occlusion wall.

According to such a structure, since it does not require the process of drilling a hole in a space partition wall, a closed wall, etc., it does not require effort and there is no possibility of reducing production efficiency.

Since the environmental test apparatus of the present invention has formed a liquid flow opening which mainly discharges liquid between the air flow opening and the test space in which the discharge port of the blower communicates, even if water droplets are discharged from the discharge port of the blower, the water drops are directed to the test space side. It may be discharged to a place other than the test space before it is scattered. As a result, the water droplets discharged from the blower are prevented from scattering toward the test space side, whereby the occurrence of a problem caused by the water droplets in the sample body during the environmental test can be reduced.

1 is a conceptual diagram illustrating an environmental test apparatus according to an embodiment of the present invention.
It is a perspective view which shows the substance of the principal part in the inside of the environmental test apparatus of FIG.
FIG. 3 is a plan view illustrating the closed wall of FIG. 2. FIG.
It is a conceptual diagram which shows the flow of air in the inside of an environmental test apparatus.
5A to 5C are explanatory diagrams showing the time course of movement of the water droplets falling on the obstruction wall.
It is explanatory drawing which shows the appearance in the laboratory of an Example and a comparative example.
Fig. 7 is an exploded perspective view showing the substance of the partition wall and the closed wall of the environmental test apparatus.
8 is an exploded perspective view illustrating a modification of the partition wall.
FIG. 9 is a perspective view illustrating a liquid flow opening formed by joining the partition wall and the blocking wall of FIG. 8.
FIG. 10 is a plan view illustrating the liquid flow opening of FIG. 9. FIG.
11 is an exploded perspective view showing another modified example of the partition wall.
It is explanatory drawing which shows the modification of a liquid flow opening.
It is a perspective view which shows the inside of the conventional environmental test apparatus.
14A to 14C are explanatory diagrams showing the time course of movement of the water droplets falling on the closed wall in the environmental test apparatus of FIG. 13.

Hereinafter, the environmental test apparatus 1 which concerns on embodiment of this invention is demonstrated.

First, the basic structure of the environmental test apparatus 1 of this embodiment is demonstrated.

The environmental test apparatus 1 shown in FIG. 1 is a so-called constant temperature and humidity apparatus which has the housing | casing 2 which covered the circumference with the heat insulating material 3. That is, the housing 2 constitutes the constant temperature and humidity chamber 5, and the inside is partitioned by the partition wall (space partition wall) 4, and the test chamber (test space) 6 and the air conditioning passage (air conditioning space) It is divided into (7). Openings 9 and 19 communicating with the test chamber 6 and the air conditioning passage 7 are formed in the upper side and the lower side in the constant temperature and humidity chamber 5.

The laboratory 6 is a space in which an apparatus, a component, or the like, which is a sample, is placed when an environmental test is carried out. An indoor temperature detection means 23 for detecting the temperature of the space and an indoor humidity detection for detecting the relative humidity of the space are provided. Means 24 are formed. The room temperature detecting means 23 is, for example, a temperature sensor such as a conventionally known RTD. In addition, the indoor humidity detection means 24 is a conventionally well-known humidity sensor, for example.

The air-conditioning passage 7 is a portion for generating air (gas) at a desired temperature or humidity. The humidifier 14, the evaporator (heat source) 15, and the heating are sequentially formed from the lower side (upstream side of the air direction). A heater (heat source) 26 and a blower 27 are disposed.

The humidifier 14 has the evaporating dish 30 and the conventionally well-known electric heater 31, and evaporates the water stored in the evaporating dish 30 by the electric heater 31. As shown in FIG.

The evaporator (cooler) 15 is a part of the known cooling apparatus 10 and functions to serve a part of the refrigeration cycle. That is, in the evaporator 15, a phase-changing refrigerant flows inside, so that the cooling capacity and the surface temperature can be changed.

The heating heater 26 is a conventionally known electric heater and heats the air passing through the air conditioning passage 7.

The blower 27 is a conventionally known multi-blade centrifugal blower and has a rotary pin 28 and an outer member 33 incorporating it. And the blower 27 has a structure which intakes air from the axial direction of the rotating pin 28, and discharges air in a rotation direction. That is, the blower 27 has the inlet port 35 and the discharge port 36 in the outer member 33. And the inlet port 35 is an outer member 33, and is formed in the side surface orthogonal to the rotating shaft of the rotating pin 28, and the discharge port 36 is formed in the circumferential surface along the rotation direction of the rotating pin 28. As shown in FIG. .

In addition, the air-conditioning passage 7 is formed with a blocking wall 16 having a rectangular planar shape on the upper side (downstream of the air direction) than the blower 27. The obstruction wall 16 has an air distribution opening 17 which penetrates in the member thickness direction formed at a predetermined position, and is a member which allows the passage of air only from the air distribution opening 17. That is, the obstruction wall 16 can send the air discharged from the blower 27 to the test chamber 6 side by making the discharge port 36 of the blower 27 communicate with the air flow opening 17. In addition, in this embodiment, the opening shape of the air flow opening 17 of the closed wall 16 is substantially square shape, and the opening size of the air flow opening 17 is the opening size of the discharge port 36 of the blower 27. In addition, in FIG. It is about the same size as.

Then, the characteristic structure of the environmental test apparatus 1 of this embodiment is demonstrated.

In the environmental test apparatus 1 of the present embodiment, the liquid flow opening 11, which allows the flow of liquid, is mainly closed to prevent scattering of water droplets that can be discharged from the blower 27 toward the test chamber 6 side. It is formed in (16).

As shown in FIGS. 1 and 2, the liquid flow openings 11 have a circular shape, and a plurality (three in this embodiment) are formed in the blocking wall 16. And each of these liquid flow openings 11 is arrange | positioned at a predetermined position. In this embodiment, the position of each liquid flow opening 11a-11c is determined by the experiment performed previously. Specifically, the positions of the liquid flow openings 11a to 11c are positions where water droplets discharged from the blower 27 can collect. More specifically, the position of each of the liquid flow openings 11a to 11c is such that the water droplets discharged from the blower 27 drop onto the blocking wall 16, or the water droplets rising along the inner wall of the blower 27 are blocked walls. Reached at (16), it is within an area where water droplets can collect under the influence of subsequent wind discharged from the blower (27). In the present embodiment, the experiment confirms that the water droplets collect in the region V (FIG. 3) where the influence of the wind discharged from the blower 27 is small, and the liquid flow openings 11a are formed in the region V. FIG. To 11c).

Hereinafter, this area | region V is demonstrated in detail.

The divided regions V1 to V3 constituting the region V are between the air flow opening 17 and the test chamber 6. In other words, each of the divided regions V1 to V3 is formed at a position downstream of the air flow direction than the air flow opening 17 in the blocking wall 16. More specifically, each of the divided regions V1 to V3 is located at a position in consideration of the distance that the water droplets can flow downstream by the wind based on the air flow direction when the water droplets are discharged from the blower 27. It is set.

In more detail, although each division area | region V1-V3 differs also according to the discharge air volume of the blower 27, as shown in FIG. 3, the opening closest to the test chamber 6 of the air distribution opening 17 is shown. Based on the edge part 40, the distance P from the opening edge part 40 to the edge part of the air flow opening 17 side of each division area V1-V3 is arrange | positioned in the position separated by a fixed distance. Moreover, the distance S from the opening edge part 40 of the air flow opening 17 to the edge part of the test chamber 6 side of each division area V1-V3 is longer than the distance P. As shown in FIG. That is, each division area | region V1-V3 is arrange | positioned in series so that it may connect with the opening edge part 40 of the air flow opening opening 17 in the position which is at least distance P from the opening edge part 40. FIG. . Further, the divided regions V1 to V3 are arranged such that the spaces Q and R adjacent to each other are spaced a predetermined distance in the direction along the opening edge portion 40 of the air flow opening 17.

Therefore, in this embodiment, each of the liquid flow openings 11a to 11c is independently present within the range of each of the divided regions V1 to V3, and each opening center is the opening edge portion 40 of the air flow opening 17. ) Is arranged within a predetermined range (range beyond the distance P and less than the distance S) on the basis of.

Next, the basic operation | movement of the environmental test apparatus 1 of this embodiment is demonstrated.

In the environmental test apparatus 1 of this embodiment, the air (gas) in the thermo-hygrostat 5 is circulated by the blower 27, and a desired environment is created in the test chamber 6. That is, the air in the constant temperature / humidity tank 5 is sucked by the blower 27 from the opening 9 of the partition wall 4 lower side to the air-conditioning passage 7 side, and the air-conditioning passage 7 is vertically upward. It passes toward and discharges to the test chamber 6 side from the opening 19 at the upper side of the partition wall 4.

In more detail, when the blower 27 is started, as shown in FIG. 4, the air in the air-conditioning passage 7 is sucked into the intake port 35 of the blower 27 and discharged from the discharge port 36. do. And the air discharged from the blower 27 is sent to the test chamber 6 side from the opening 19 of the upper side of the partition wall 4. Thereby, air flow is formed like the wall surface in the test chamber 6. Then, the air reaching the opening 9 on the lower side of the partition wall 4 is introduced into the air conditioning passage 7 again. Since the humidifier 14, the evaporator 15, and the heating heater 26 are arrange | positioned in the air-conditioning passage 7 sequentially along the air flow direction, it introduces into the air-conditioning passage 7 as mentioned above. The humidified air is humidified as necessary with the humidifier 14, passes through the evaporator 15, and then flows to the heating heater 26 side.

In addition, the environmental test apparatus 1 uses the indoor temperature detection means 23 and the indoor humidity detection means 24 to determine the current temperature (current temperature) and the current relative humidity (current relative humidity) in the test chamber 6. Is monitored, and each apparatus (humidifier 14, cooling apparatus 10, heating heater 26, blower 27, etc.) is controlled based on predetermined setting conditions.

Then, the characteristic function in the environmental test apparatus 1 of this embodiment is demonstrated.

Conventionally, the environmental test apparatus may discharge water droplets from a blower at the time of the said basic operation | movement. As described above, water droplets discharged from the blower are rarely scattered directly to the laboratory by the posture of the discharge port of the blower, but are secondarily scattered after reaching the obstructed wall by falling onto the obstructed wall or rising from the bottom. There is a case. Thus, in the present embodiment, the water droplets discharged from the blower 27 and fall or reach the closed wall 16 have a droplet scattering prevention function that can prevent the problem of secondary scattering to the test chamber 6 side.

That is, in the present embodiment, as described above, three liquid flow openings 11a to 11c are formed in the blocking wall 16, and the droplet flow preventing function is achieved by the liquid flow openings 11a to 11c. have. In detail, if the blower 27 is driven by the said basic operation | movement, for example, and the water droplet is discharged from the blower 27, as shown in FIG. 5A, the water droplet is discharged from the blower 27 ( Falls onto occlusion wall 16 not too far away from 36). That is, a plurality of water droplets are attached to the blocking wall 16.

And most of the water droplets falling on the blocking wall 16 (hereinafter referred to as the water droplets after the drop) are influenced by a predetermined direction, that is, by the subsequent wind, by the influence of the subsequent wind discharged from the blower 27. It moves toward this small area (divided areas V1 to V3 in this embodiment). That is, in the divided regions V1 to V3, as shown in FIG. 5B, the water droplets after the drop move from all directions. Then, when the water droplets reaching any one of the divided regions V1 to V3 reach the liquid flow opening 11, as shown in FIG. 5C, the water droplets are discharged downward through the liquid flow opening 11. . Specifically, the water droplet discharged from the liquid flow opening 11 flows downward of the air-conditioning passage 7 and is drained. In addition, in this embodiment, since the evaporating dish 30 of the humidifier 14 is arrange | positioned at the bottom of the air-conditioning passage 7, it drains to the evaporating dish 30. As shown in FIG.

Thus, in this embodiment, the some liquid flow opening 11 is formed in the obstruction wall 16, and it can discharge suitably, without almost scattering the water droplet discharged from the blower 27 to the test chamber 6 side. This is also apparent from the results of the experiment shown below.

That is, the environmental test apparatus (Example) 1 of the present embodiment and the conventional environmental test apparatus (Comparative Example) are subjected to the above-described environmental test under the same test conditions (target temperature and target humidity to be set). And how much the water droplets discharged from the blower 27 scatter to the test chamber 6 side were compared.

The experimental result of an Example and a comparative example is as Table 1 described below.

In the test conditions, the target temperature in the test chamber 6 was 10 ° C and the target humidity was 98%.

In addition, the test chamber 6 was regarded as a sample body, four square copper plates of 100 mm on one side were prepared, and these were arranged in a predetermined arrangement. Specifically, as shown in Fig. 6, the four copper plates are arranged in two pieces on the left side when viewed from the front of the test chamber 6 side (7) from the test chamber 6 side. It is placement that we put two pieces on the right side (we say right A, right B from the front).

Although the scattering amount of the droplets discharged from the blower 27 was small in the embodiment, almost no adhesion of the droplets appeared on any of the copper plates (the average number of droplets attached to the four copper plates was about 5 drops). There were many scattering amounts of, and many droplets were attached to all the copper plates (the average number of droplets attached to the four copper plates was about 16 drops). That is, in the Example, only about 30% of the water droplets shown in the comparative example appeared.

In the said embodiment, although the structure which provided the liquid flow opening 11 in the area | region where there is little influence of the wind discharged from the blower 27 was shown, this invention is not limited to this. For example, the liquid flow opening 11 is formed in an area where the water droplets discharged from the blower 27 can fall, regardless of the influence of the wind discharged from the blower 27, or You may form so that it may apply to the area | region where there is little influence of wind, and the said fallable area | region. As a specific example, the structure which provided the slit-shaped liquid flow opening opening from the discharge port 36 of the blower 27 to the test chamber 6 is mentioned.

The slit-like liquid flow opening will be described in detail below.

First, in order to make the following description easy to understand, the substance of the structure of the obstruction wall 16 and the partition wall 4 is mentioned.

In the said embodiment, in order to simplify description, the plate-shaped closed wall 16 and the partition wall 4 were shown, and the structure in the constant temperature and humidity chamber 5 like the one which was just joined together was shown, but actually differs slightly. Do. That is, in the actual environmental test apparatus, as shown in FIG. 7, the partition wall 4 is orthogonal to the partition body 43 that forms the side wall on the side of the test chamber 6 and the partition body 43 from the upper end thereof. The partition upper surface 45 bent in the direction and the butt wall 46 bent downward in the orthogonal direction from the projecting end of the partition upper surface 45 are employed. Moreover, as the obstruction wall 16, it has the obstruction body 47 in which the air flow opening 17 was formed, and the butt walls 48 and 49 bent in the orthogonal direction downward from the pair of opposing ends of the obstruction body 47. Is adopted. The partition wall 4 and the closure wall 16 face the butt wall 46 and the butt wall 48, and are joined using fastening elements such as spot welding and pins.

Based on the above facts, the inventors consider cutting off a portion of the butt wall 48 of the occlusion wall 16 or the butt wall 46 of the partition wall 4 to form a slit-like liquid flow opening 42. It was. 8 shows a liquid flow opening 42 formed by cutting a part of the butt wall 46 of the partition wall 4. That is, in this structure, as shown in FIG. 9, FIG. 10, the liquid flow opening 42 has the blocking wall 16 of the blocking wall 16 in the state which brought the said partition wall 4 and the blocking wall 16 together. It is formed on the straight line which connects the air flow opening 17 and the test chamber 6 downstream from the air flow opening 17. By forming and arranging the liquid flow openings 42 in this manner, the liquid flow openings 42 can be spread over the areas where the influence of the wind discharged from the blower 27 is small and where the water droplets can fall. Likewise, FIG. 11 shows a liquid flow opening 42 formed by cutting out a portion of the butt wall 48 of the occlusion wall 16.

Therefore, also in this structure, it is possible to expect the effect similar to the said embodiment.

In addition, as shown in FIGS. 9-11, the effect of the water droplet removal can be improved more than the said embodiment by making the slit length of the liquid flow opening 42 larger than the opening width of the air flow opening 17. FIG.

In addition, both the above-mentioned closed wall 16 and the partition wall 4 have the structure provided with the butt walls 48 and 46, and the structure which formed the liquid flow opening 42 in the butt walls 48 and 46. FIG. Although was shown, this invention is not limited to this. That is, the structure which employ | adopted the closed wall or partition wall which does not have a butt wall, specifically, a plate-shaped member, and formed the liquid flow opening 42 in the closed wall or partition wall which does not have the butt wall may be sufficient. For example, in the case where the liquid flow opening 42 is formed in a closed wall which does not have the butt wall, the end of the side connected to the partition wall (the edge of one of the plate members) is notched to a predetermined size. do. Similarly, if the liquid flow opening 42 is formed in a partition wall having no butt wall, the thickness of the wall may be cut by a predetermined size.

In addition, the partition wall or the closed wall on the side where notch or mowing is not performed to form the liquid flow opening 42 may be provided with or without butting walls.

Also in such a structure, it is possible to expect the effect similar to the said embodiment.

In addition, in this invention, as shown in FIG. 12, the partition wall 4 which partitions the test chamber 6 and the air conditioning passage 7, without processing the partition wall 4 and the closed wall 16, A small gap 21 is formed between the blocking walls 16 and the water droplets may be discharged from the gap 21.

Moreover, in this invention, in addition to the said structure, the inclined surface of the downhill gradient toward the said liquid flow opening 11 or the gap 21 is forcibly flowed into the liquid flow opening 11 or the gap 21. The arrangement provided may be used.

In the said embodiment, although the structure which provided three liquid distribution openings 11 in the closed wall 16 was shown, this invention is not limited to this, Two or less or four or more liquid distribution openings 11 are shown. The formed structure may be sufficient. The liquid flow opening 11 is not limited to a circular opening shape, and may be any other shape such as an ellipse, a rectangle, a rectangle, and the like.

In the said embodiment, although the water droplet which passed the liquid flow opening 11 showed the structure which naturally falls down the air conditioning passage 7, this invention is not limited to this, The liquid flow opening 11 and The piping which communicates may be provided and the structure which can drain through a piping may be sufficient.

In the said embodiment, although the structure which formed the liquid flow opening 11 set smaller than the range of the area | region V was shown, this invention is not limited to this, The liquid flow of the magnitude | size similar to the range of the area V is shown. It may be a configuration in which an opening is formed.

1 environmental test device
4 partition walls (spatial partition walls)
6 test rooms
7 Aisles
11 liquid distribution opening
14 humidifier
15 Evaporator (Cooler)
16 occlusion wall
17 air distribution opening
21 gaps (liquid flow opening)
26 Heater Heater
27 blower
36 outlet
V area

Claims (13)

An environmental test apparatus having an air conditioning space having a heat source and a blower, and a test space in which a sample body is arranged, and circulating gas between the air conditioning space and the test space to make a desired environment within the test space, wherein water droplets are discharged from the blower. In the environmental test apparatus which may be discharged,
Having a housing, the interior of the housing is partitioned into a test space and an air conditioning space by a space dividing wall,
A closed wall for dividing the upper and lower sides is formed in the air adjusting space, and an air distribution opening is formed in the closed wall to assume the flow of gas.
The blower has a discharge port, the discharge port is provided so as to communicate with the air distribution opening,
In at least one of the partition upper surface, the said blocking wall, and between the said space partitioning wall and the said blocking wall which exists between the said air flow opening opening and a test space, than the bottom part of the said housing. In the position above the height, the liquid flow opening which assumed the flow of a liquid is formed,
The blower is installed in an attitude in which the discharge port is directed upward, characterized in that the environmental test apparatus. The method of claim 1, wherein the obstruction wall is at the top of the air conditioning space,
The blower has an intake port, the intake port is in the air adjusting space, draws air from the intake port, and discharges air from the discharge port,
And the liquid flow opening is opened to the air conditioning space. The liquid flow opening according to claim 1 or 2, wherein the liquid flow opening is formed in a region where the influence of the wind caused by the blower is small,
The area | region where the influence of the wind by a blower is small is a position of the downstream side of a flow direction of air rather than an air distribution opening, and an area | region which is separated from the opening edge part closest to the test chamber of an air distribution opening. The said partition wall is connected with the said blocking wall,
The liquid flow opening is formed in a space partition wall or a closed wall. The environmental test apparatus according to claim 1 or 2, wherein the liquid flow opening has a smaller opening area than the air flow opening. The environmental test apparatus according to claim 4, wherein the liquid flow opening has a smaller opening area than the air flow opening. The environmental test apparatus according to claim 1 or 2, wherein a plurality of the liquid flow openings are formed. The environmental test apparatus according to claim 3, wherein a plurality of the liquid flow openings are formed. The environmental test apparatus according to claim 4, wherein a plurality of the liquid flow openings are formed. The environmental test apparatus according to claim 5, wherein a plurality of the liquid flow openings are formed. The space partitioning wall has a butt wall bent downwardly orthogonally from the partition upper surface, and the butt wall is provided with slits.
The space dividing wall and the occlusion wall are connected to the occlusion wall against the butt wall, and the slit functions as the liquid flow opening. The said blocking wall is a slit formed in the end side of Claim 4,
And said slit functions as said liquid flow opening. The environmental test apparatus according to claim 1 or 2, wherein the liquid flow opening is a gap between the space dividing wall and the occlusion wall.

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