JP7013362B2 - Environmental test equipment - Google Patents

Description

The present invention relates to an environmental test apparatus, and is particularly suitable as an environmental test apparatus using a heavy object as a test object.

Environmental tests are known as a measure for investigating the performance and durability of products and parts. Environmental tests are carried out using equipment called environmental test equipment. The environmental test device artificially creates, for example, a high temperature environment, a low temperature environment, a high humidity environment, and the like.

Environmental tests range from small objects such as IC chips to large objects such as automobile and aircraft parts. In some cases, a heavy object weighing several hundred kilograms or more is used as the test object. Some environmental test devices that use heavy objects as test objects have rails that straddle the inside and outside of the test chamber for the purpose of facilitating the loading and unloading of the test object into and out of the test chamber.
That is, there is an environmental test device in which a series of rails are laid from the bottom of the test room to the floor of the room in which the test room is installed.

Then, a bogie (freight car) is installed on the rail, and the object to be tested is mounted on the bogie. The operator moves the trolley by human power or power while the test object is still placed on the trolley, and installs it in the test room.
In many cases, the test object is exposed to the environment in the test room with the test object placed on the trolley, and an environmental test is performed.
After the test, pull the dolly out of the test room along the rails.

Japanese Unexamined Patent Publication No. 2013-108712 Japanese Unexamined Patent Publication No. 2014-66593

According to the above-mentioned environmental test apparatus on which rails are laid, even a heavy test object can be easily taken in and out of the test chamber.
However, in the conventional environmental test equipment, the rail is a so-called single rail, one end side of the rail is in the test chamber, the middle part of the same rail straddles the inside and outside of the test chamber, and the other end side of the same rail is tested. It's outside the room.
Therefore, the rail may cause heat transfer between the inside and outside of the test room.
That is, the environmental test is often carried out at a temperature different from the outside air temperature, and the temperature in the test chamber is often different from the outside air temperature. As a result, heat conduction occurs through the rails, which may disturb the temperature environment in the test chamber or consume more power in order to maintain the temperature environment in the test chamber.

Further, when the test chamber is in a low temperature environment, the portion laid in the test chamber of the rail is cooled, and the temperature of the portion outside the test chamber of the rail tends to decrease due to heat conduction. As a result, dew condensation may occur on the surface of the rail or frost may occur.
When the test room is in a high temperature environment, it may be necessary to be careful during work in consideration of the fact that the part of the rail outside the test room may become hot.
It is conceivable to attach a heat insulating material to the rail in order to prevent dew condensation, etc., but the shape of the rail is complicated, and it takes a considerable amount of time and effort to manufacture a heat insulating material that matches this and to attach it.

It is an object of the present invention to pay attention to the above-mentioned problems of the prior art and to develop an environmental test apparatus capable of suppressing heat transfer inside and outside the test chamber via rails.

An embodiment for solving the above-mentioned problems is an environmental test apparatus having a test chamber in which a test object is placed and capable of artificially creating a predetermined environment inside the test chamber. It has a rail that substantially connects the inside and the outside, and the rail has a detachable part in a part thereof, and the detachable part is at a position including a boundary portion between the test chamber and the outside of the test chamber and / or a portion in the vicinity thereof. It is an environmental test apparatus characterized by having a padding to be attached after the removable portion is removed .

Here, the "rail that substantially connects the inside and outside of the test room" means that even if there is a partial break, the wheel can run over the cut.
The rail used in the environmental test apparatus of this embodiment is not a so-called single rail, but a rail in which divided members are connected. In the rail adopted in this embodiment, the region corresponding to the boundary portion between the test chamber and the outside of the test chamber or the region corresponding to the vicinity portion of the boundary portion can be removed.
When conducting a test using the environmental test apparatus of this embodiment, the removable portion is removed after the test object is carried into the test chamber.
As a result, even if the temperature environment in the test chamber is different from the temperature environment outside the test chamber, the rails are divided, so that heat transfer inside and outside the test chamber by the rails is unlikely to occur.

In the above aspect, it has a padding to be attached after the removable portion is removed .

The padding described above is preferably a heat insulating material.
When the removable part is removed, a defective part is created in a part of the rail. Although heat conduction is blocked by the defective portion, the inside and outside of the test chamber may communicate with each other through the defective portion and ventilate to disturb the environment in the test chamber.
This aspect addresses this problem, and by providing a padding in the defect portion, ventilation inside and outside the test chamber can be prevented.

In the above embodiment, the floor of the test chamber has a groove, the rail is in the groove, the padding is block-shaped, and the groove is formed as it is or deformed after the rail is removed. It is desirable that the shape matches the shape.

According to this aspect, the movement of air through the groove can be blocked by a block-shaped padding.

In the environmental test apparatus of the present invention, heat transfer inside and outside the test room via rails can be suppressed.

It is a perspective view of the environmental test apparatus and the carriage (freight car) of the embodiment of this invention, and shows the state which the door of the environmental test apparatus is closed. It is a perspective view of the environmental test apparatus of FIG. 1, and shows the state which the door of the environmental test apparatus is opened. It is a plan view of the rail of the environmental test apparatus of FIG. 1, (a) shows the state which the detachable part is attached and the rail is connected in a series, (b) is the rail with the detachable part removed. Indicates a state in which is divided, and (c) shows a state in which a heat insulating block is attached to a defective portion of the rail. FIG. 1 is a cross-sectional perspective view of the vicinity of the door of the environmental test apparatus of FIG. 1, showing a state in which a detachable portion is attached and rails are connected in a series. FIG. 1 is a cross-sectional perspective view of the vicinity of the door of the environmental test apparatus of FIG. 1, showing a state in which the removable portion is removed and the rail is divided. FIG. 1 is a cross-sectional perspective view of the vicinity of the door of the environmental test apparatus of FIG. 1, showing a state in which a heat insulating block is attached to a defective portion of the rail. It is sectional drawing of the vicinity of the door part of the environmental test apparatus at the time of carrying a test object into a test chamber, (a) shows the state when a door is opened and a carriage passes by the vicinity of the door, (b). Indicates a state in which the detachable part of the rail is removed after the trolley has passed near the door part in which the door is opened, (c) indicates a state in which a heat insulating block is attached to the defective part of the rail, and (d) indicates a state in which the door is attached. Indicates a closed state. It is sectional drawing near the door of the environmental test apparatus of another embodiment of this invention, and shows the state which the detachable part is attached and the rail is connected in a series.

Hereinafter, embodiments of the present invention will be further described.
The environmental test apparatus 1 of the present embodiment is designed for testing a large heavy object.
The environmental test apparatus 1 has a test chamber 5 (FIG. 2) covered with a heat insulating wall 2 as well as a known one. The test room 5 is a space in which the test object 102 is installed.
The environmental test apparatus 1 has an air-conditioning means (not shown), and can artificially create a desired environment in the test chamber 5.

The air-conditioning means has a humidifying device, a cooling device, a heating heater (heating device), and the like (none of which are shown), as in the known air-conditioning means. Further, a blower (not shown) for circulating air between the test chamber 5 and the air conditioning means is provided.
A temperature sensor and a humidity sensor (not shown) are provided in the test chamber 5, and the detection values of the temperature sensor and the humidity sensor are fed back to the equipment constituting the air conditioning means, and the temperature and humidity in the test chamber 5 are desired. Adjusted to value.
The air conditioning means may be integrated with the test chamber 5 or may be an individual device.

A door 6 is provided on the front surface of the test chamber 5. In the present embodiment, the door 6 is a double door type door 6 composed of two door pieces 7. The type of the door is arbitrary, and may be a single door, a sliding door, or an elevating door.

In the environmental test apparatus 1 of the present embodiment, a pair of rails 10 are laid in the test chamber 5 for taking in and out the test object 102.
The rail 10 is laid across the inside and outside of the test chamber 5.
That is, two grooves 13 are formed in parallel by hanging from the bottom surface 11 of the test chamber 5 to the floor (hereinafter, simply referred to as “room floor”) 12 of the room in which the environmental test apparatus 1 is installed. The groove 13 is continuous from the bottom surface 11 of the test chamber 5 to the floor 12 of the chamber.

And rails 10 are laid in the groove 13 respectively.
As shown in FIGS. 2, 3, and 4, the rail 10 of the present embodiment is composed of rail pieces 15, 16 and 17 divided into three parts.
The rail pieces 15, 16 and 17 all have the same cross-sectional shape, and are composed of a head 20, an abdomen 21, and a bottom 22 as shown in FIG. In the present embodiment, as shown in the enlarged view of FIG. 4, a through hole 18 is provided in the bottom portion 22 of the rail pieces 15, 16 and 17. Further, on the bottom surface of the groove 13, there is a screw hole 25 in which a screw (female screw) is embedded.
As shown in the enlarged view of FIG. 4, each of the rail pieces 15, 16 and 17 has a through hole 18 of the rail piece aligned with the screw hole 25 of the groove 13, and a bolt 26 is inserted and fixed to the groove 13.

In the present embodiment, of the rail pieces 15, 16 and 17 divided into three, the rail piece 15 is laid in the groove 13 formed in the bottom surface 11 of the test chamber 5, and the rail piece 17 is the floor of the room. It is laid in the groove 13 formed in 12. The rail piece 16 is located at the boundary between the test chamber 5 and the chamber, as shown in FIG. That is, as shown in FIG. 4, the position of the rail piece 16 is an intermediate position sandwiched between the rail piece 15 and the rail piece 17, and is located directly below the door 6 of the environmental test apparatus 1.

When the three rail pieces 15, 16 and 17 are all fixed, the rail pieces 15, 16 and 17 are arranged linearly and substantially function as one rail 10.
In the present embodiment, the rail piece 15 is laid in the groove 13 formed in the bottom surface 11 of the test chamber 5, and the rail piece 16 is directly under the door 6 and the bottom surface 11 of the test room 5 and the floor 12 of the room. The rail piece 17 is in a groove 13 formed in the floor 12 of the room.
Therefore, in a state where all three rail pieces 15, 16 and 17 are fixed, the rail 10 substantially connects the inside and outside of the test chamber 5, and the wheel 101 of the bogie 100 rides on the rail 10 and is a rail. It can run on pieces 15, 16 and 17.

In the present embodiment, since the rail 10 is composed of the rail pieces 15, 16 and 17 divided into three as described above, only the intermediate rail piece 16 can be removed.
As described above, in the environmental test apparatus 1 of the present embodiment, the intermediate rail piece 16 is a removable portion. That is, since the intermediate rail piece 16 is independent of the rail pieces 15 and the rail pieces 17 on both ends and is fixed to the groove 13 by the bolts 26, the bolts 26 fixing the rail pieces 16 should be removed. As a result, only the intermediate rail piece 16 can be removed as shown in FIGS. 3 (b) and 5.
In the environmental test apparatus 1 of the present embodiment, the intermediate rail piece 16 is a rail piece constituting the detachable portion.

Next, a method of carrying the test object 102 into the test chamber 5 of the environmental test apparatus 1 will be described. When the test object 102 is carried into the test chamber 5, as shown in FIGS. 2, 3 (a) and 4, the rail piece 16 in the intermediate portion (rail piece constituting the removable portion) 16 is designated. It is installed at a position, and the inside and outside of the test chamber 5 are substantially connected by a rail 10 composed of three rail pieces 15, 16 and 17.

The test object 102 is placed on the trolley 100. The dolly 100 is located outside the test room 5 as shown in FIG. 1, is a part of the rail 10, and is placed in an area laid on the floor 12 of the room.
Then, as shown in FIG. 2, the door 6 is opened, and the dolly 100 is pushed into the test chamber 5 along the rail 10. As shown in FIG. 7A, the wheel 101 of the carriage 100 transfers from the rail piece 17 to the intermediate rail piece 16 constituting the detachable portion, and further transfers from the intermediate rail piece 16 to the rail piece 15 in the test chamber 5. ..

When the dolly 100 is carried into the test chamber 5, the rail piece 16 in the intermediate portion is removed as shown in FIGS. 3 (b), 5 and 7 (b). Then, as shown in FIGS. 3 (c), 6 and 7 (c), the padding 30 is placed in the groove 13 including the defective portion 23 of the rail, and the test chamber 5 side of the groove 13 is shielded from the floor 12 side of the room. ..

In this state, the door 6 is closed as shown in FIGS. 1 and 7 (d). When the door 6 is closed, the groove 13 is shielded at the position of the lower part of the door 6 as shown in FIGS. 6 and 7 (d), and the inside and outside of the test chamber 5 are shielded by the door 6 and the padding 30. The inside of 5 becomes airtight.
In this state, an air conditioning means (not shown) is activated, the environment in the test chamber 5 is artificially adjusted to a desired environment, and an environmental test is performed.

In the environmental test apparatus 1 of the present embodiment, during the environmental test, the rail 10 is divided at the boundary portion between the test chamber 5 and the chamber, and the heat and cold heat in the test chamber 5 are transferred to the test chamber 5 by heat conduction. Conduction to the outer rail piece 17 is suppressed.
That is, during the test, the intermediate rail piece 16 constituting the removable portion is removed, and the rail 10 has a defective portion 23. Therefore, the inside of the test chamber 5 of the rail 10 and the outside side of the test chamber 5 are not connected, and heat conduction does not occur through the rail 10.
For example, even if the temperature inside the test chamber 5 is high, it is possible to prevent the rail 10 (rail piece 17) outside the test chamber 5 from becoming hot. Similarly, even if the temperature inside the test chamber 5 is low, the temperature of the rail 10 (rail piece 17) outside the test chamber 5 is prevented from dropping, and dew condensation is prevented.

Next, the filling 30 will be described. In this embodiment, the padding is made of a heat insulating material and is block-shaped. The padding 30 is packed in the groove 13 after removing the intermediate rail piece 16 constituting the removable portion to shield the front and back of the groove 13. The padding 30 may have, for example, the same cross-sectional shape as the groove 13, or may have a slightly different shape. For example, a part or all of the padding 30 may be deformable, and may be deformed by being pushed into the groove 13 to have a shape that matches the groove 13.

In the embodiment described above, the rail piece 16 constituting the detachable portion is arranged at a position corresponding to directly below the door 6 of the environmental test apparatus 1. As described above, it is desirable that the rail piece 16 constituting the removable portion is located at a position including the inner and outer boundaries of the test chamber 5, but the removable portion is inside the test chamber 5 as shown in FIG. It may be in the vicinity of the boundary portion.
It is not recommended that the removable part be outside the test chamber 5, but this is not excluded.
The removable portion may straddle the inner and outer boundaries of the test chamber 5, may be a part of the boundary portion, or may be located on the test chamber 5 side including a part or all of the boundary portion. It may be on the floor 12 side of the room including a part or all of the boundary.
Further, the removable portion may not be located at the boundary portion but may be near the boundary portion.

1 Environmental test equipment 5 Test room 6 Door 7 Door piece 10 Rail 13 Groove 16 Rail piece (rail piece constituting the removable part)
30 Stuffing 100 Bogie 102 Test object

Claims (2)

In an environmental test device that has a test room in which a test object is placed and can artificially create a predetermined environment inside the test room.
It has a rail that substantially connects the inside and outside of the test chamber.
The rail has a removable portion in a part thereof, and the removable portion is located at a position including a boundary portion between the test chamber and the outside of the test chamber and / or a portion in the vicinity thereof .
An environmental test apparatus having a padding to be attached after removing the removable portion . The floor of the test chamber has a groove, the rail is in the groove, the padding is block-shaped, and has a shape that fits the groove as it is or is deformed to match the groove after the rail is removed. The environmental test apparatus according to claim 1 , wherein the environmental test apparatus is provided.

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