JP7044915B2 - Environmental test equipment and environmental test method - Google Patents

Description

The present invention relates to an environmental test apparatus capable of creating a specific environment in a test chamber and exposing a test object to a desired environment. The present invention also relates to an environmental test method using a motor as a test object.

Environmental tests are known as tests for examining the performance and durability of products and parts. Environmental tests are carried out using equipment called environmental test equipment.
Generally, an environmental test device has a test room and an air conditioning unit. The air-conditioning unit is provided with air-conditioning equipment such as a blower, a heating device, and a cooling device.
The test room and the air-conditioning section form a series of circulation air passages. The air in the test room is introduced into the air-conditioning section to adjust the temperature and humidity, and the adjusted air is returned to the test room to return the test room. The desired temperature environment and humidity environment are created.
The test room is a substantially enclosed space except for the connecting portion with the air conditioning unit.

A general environmental test is performed by placing a test object (also referred to as a test piece) in the test chamber of an environmental test apparatus and exposing the test object to the environment in the test chamber.
Further, in the environmental test, the test object is not only placed in a predetermined environment, but may be energized to perform some operation.
For example, a predetermined test may be performed in a state where the test object is exposed to a high temperature environment, and the test object may be energized and driven to evaluate the performance.

Japanese Unexamined Patent Publication No. 2013-72648

Some of the test objects are driven to scatter liquids and solids such as oils and fats and water. When such an object to be tested is installed in the test chamber and driven, the scattered matter may be scattered in the test chamber and further enter the air conditioning unit.
The air-conditioning unit generally has a built-in heat exchanger, and if scattered matter adheres to the fins, it may be difficult to remove it.
Further, when there is a heating device in the air-conditioning unit, oils and fats may adhere to the heating device and burn, resulting in an offensive odor or smoke. Also, for example, flammable oil may be scattered.
In any case, if scattered matter enters the air-conditioning section, it can be quite troublesome.

As a measure to prevent scattered objects from entering the air-conditioning unit, it is conceivable to temporarily remove the test object from the test room when driving the test object.
That is, the test object is placed in a test chamber and exposed to a desired environment, and in that state, for example, the test object is heated from the outside to raise the temperature, and then the test object is taken out from the test chamber and energized. And drive.

However, this method has a problem that it is troublesome to put in and take out the test object from the test room.
Workers may be at risk of burns or frostbite, especially if the subject is hot or cold.
Further, as described above, when a predetermined test is performed even when the test object is not driven, various sensors may be attached to the test object in the test chamber, and these signal lines may be used, for example. It is pulled out from the hole provided in the side wall of the test chamber.
When taking out the test object from the test room, it may be necessary to attach / detach the signal line as described above, which is troublesome.

Therefore, the present invention pays attention to the above-mentioned problems of the prior art, and provides an environmental test apparatus capable of driving a test object installed in a test room even if it is a test object in which there is a concern that scattered substances may be generated. The challenge is to provide.
Another object of the present invention is to provide a motor to be tested, which may generate scattered matter, and to provide an environmental test method capable of installing and driving the motor in the test chamber. do.

A related invention for solving the above-mentioned problems has a test chamber in which a test object is placed and an air-conditioning unit having a built-in air-conditioning device, and the test chamber has a blower inlet and a blower outlet. , The air in the test chamber is discharged from the air-conditioning outlet and introduced into the air-conditioning unit, and the air whose temperature and / or humidity is adjusted in the air-conditioning unit is returned to the test room from the air-conditioning inlet to the temperature and temperature in the test chamber. / Or an environmental test device in which the humidity is controlled, the environmental test device is provided with a shielding means for shielding the air blower inlet and the air blower outlet.

The environmental test apparatus of the present invention has a shielding means for shielding the blower inlet and the blower outlet. In the environmental test apparatus of the present invention, by shielding the blower inlet and the blower outlet with the shielding means, it is possible to prevent the scattered matter generated from the test object from entering the air conditioning unit.

In a related invention, the test chamber has an open portion on at least one surface, and another test auxiliary device can be connected to the open portion, and the test chamber can move relative to the test auxiliary device. The test object is attached to the test assist device, and the test chamber and the test assist device are closed by connecting the test assist device to the open portion of the test chamber by relatively moving at least one of the test chamber and the test assist device in the proximity direction. The above-mentioned environmental test apparatus is characterized in that the test chamber is in a substantially sealed state and the test object is arranged in the test chamber.

According to the related invention, it is possible to switch between an open state in which the blower inlet and the blower outlet are opened and a shielded state in which the blower inlet and the blower outlet are shielded by operating the shielding means from outside the test room. It is the above-mentioned environmental test apparatus characterized by being present.

According to the present invention, it is possible to switch between the open state and the shielded state without opening the door of the test room or the like. Therefore, the continuity of the environmental test can be ensured.

In the above-described configuration, the shielding means has an open / close detecting means for detecting that the air-conditioning introduction port and the air-conditioning discharge port are shielded, or that the shielding means does not shield the air-conditioning introduction port and the air-conditioning exhaust port. It is desirable that any or all of the air-conditioning equipment cannot be driven or any or all of the air-conditioning equipment can be driven depending on the detection status of the open / close detecting means.

It may have a structure in which the heat insulating tank is provided, the inside of the heat insulating tank is partitioned, and the test chamber and the air conditioning unit are formed.

The test room and the air-conditioning unit are separate devices, and the two may be connected by an air passage.

The invention relating to the environmental test method is an environmental test method in which a motor is used as a test object and the above-mentioned environmental test device is used. Operate the air-conditioning equipment in the open state to make the environment in the test room the desired environment, adapt the test object to the environment in the test room, and then shield the blower inlet and blower outlet with a shielding means. It is characterized by driving a motor, which is a test object.

According to the present invention, even if some object is scattered from the motor, the shielding means prevents the scattered object from entering the air conditioning unit.

The invention according to claim 1 is an environmental test apparatus capable of performing a test using a driven object as a test object, a test room in which the test object is arranged, and an air-conditioning unit having a built-in air-conditioning device. The test chamber has a blower inlet and a blower outlet, and the air in the test chamber is discharged from the blower outlet and introduced into the air conditioner, and the temperature and / or humidity in the air conditioner. In an environmental test apparatus in which the air conditioned by air is returned from the blower inlet to the test chamber and the temperature and / or humidity in the test chamber is adjusted, a shielding means for shielding the blower inlet and the blower outlet. Is provided, and when it is detected that the air-conditioning inlet and the air-conditioning outlet are shielded by the shielding means, the air-conditioning equipment cannot be driven.
The environment according to claim 1, wherein the air-conditioning apparatus includes a blower that blows air to the test chamber, and the non-driable air-conditioning apparatus includes the blower. It is a test device.
The invention according to claim 3 is the environmental test apparatus according to claim 1, wherein the shielding means is opened and closed based on the state of the test object.
The invention according to claim 4 is characterized in that, when it is detected that the blower inlet and the blower outlet are not shielded by the shielding means, any or all of the air conditioning equipment can be driven. The environmental test apparatus according to any one of claims 1 to 3.
In the invention according to claim 5, the test chamber has an open portion, and another test auxiliary device can be connected to the open portion, and the test chamber can move relative to the test auxiliary device. The test assisting device is attached to the test assisting device, and at least one of the test chamber and the test assisting device is relatively moved in the proximity direction to connect the test assisting device to the opening portion. The environmental test apparatus according to any one of claims 1 to 4, wherein the test chamber is substantially sealed and the test object is arranged in the test chamber. be.
The invention according to claim 6 is an open state in which the shielding means is operated by operating from outside the test room to open the blower inlet and the blower outlet, and shields the blower inlet and the blower outlet. The environmental test apparatus according to any one of claims 1 to 5, wherein the shielding state can be switched.
The invention according to claim 7 is any one of claims 1 to 6, wherein the heat insulating tank is provided, and the inside of the heat insulating tank is partitioned to form the test chamber and the air conditioning unit. The described environmental test equipment.
The invention according to claim 8 is the invention according to any one of claims 1 to 7, wherein the test room and the air-conditioning unit are separate devices, and the two are connected by an air passage. It is an environmental test device.

According to the environmental test apparatus of the present invention, even a test object that may generate scattered matter can be driven in a state of being installed in a test room.
Further, in the environmental test method of the present invention, it is possible to install and drive a motor in the test chamber.

It is a perspective view of the environmental test apparatus and the test auxiliary apparatus of embodiment of this invention. It is sectional drawing which conceptually represented the environmental test apparatus and the test auxiliary apparatus of embodiment of this invention. It is a perspective view of the shielding means adopted in the environmental test apparatus of FIG. It is a shielding means adopted in the environmental test apparatus of FIG. 1, and is a perspective view in which the observation direction is different from that of FIG. 3 and a part thereof is omitted. FIG. b) shows a state in which the air blower inlet is shielded. It is explanatory drawing which shows a part of the side surface of the environmental test apparatus of FIG. 1, (a) shows the case where the blower introduction port is opened, and (b) shows the case where the blower introduction port is shielded. It is sectional drawing which shows the state at the time of use of the environmental test apparatus of FIG. It is sectional drawing which shows the state next to FIG. 6 at the time of using the environmental test apparatus of FIG. It is sectional drawing which shows the state next to FIG. 7 at the time of using the environmental test apparatus of FIG. It is sectional drawing which conceptually represented the environmental test apparatus and the test auxiliary apparatus of another embodiment of this invention. It is sectional drawing which conceptually represented the environmental test apparatus and the test auxiliary apparatus of still another Embodiment of this invention, (a) shows the state which the blast inlet and the blast outlet are open, and (b) is the blast. Indicates a state in which the introduction port and the air outlet are shielded. It is sectional drawing which conceptually represented the environmental test apparatus of still another Embodiment of this invention, (a) shows the state which the blast inlet and the blast outlet are open, (b) is the blast inlet and the blast. Indicates a state in which the outlet is shielded. It is sectional drawing which conceptually represented the environmental test apparatus of still another Embodiment of this invention, (a) shows the state which the blast inlet and the blast outlet are open, (b) is the blast inlet and the blast. Indicates a state in which the outlet is shielded.

Hereinafter, embodiments of the present invention will be further described.
The environmental test device 1 of the present embodiment is used in combination with the test auxiliary device 100 as shown in FIGS. 1 and 2.
First, the basic structure of the environmental test apparatus 1 of the present embodiment will be described. As shown in FIG. 2, the environmental test apparatus 1 of the present embodiment has a heat insulating tank 3 and an air conditioning device 10 exhibiting an air conditioning function.
That is, the environmental test apparatus 1 of the present embodiment has a heat insulating tank 3 covered with a heat insulating wall 2 as shown in FIG.
Inside the heat insulating tank 3, there is a partition wall 7, and the inside of the heat insulating tank 3 is divided into a test room 5 and an air conditioning space (air conditioning unit) 15 by the partition wall 7.
The test room 5 is a space in which the test object is installed. The test chamber 5 is a space in which five surfaces are surrounded by the inner wall of the heat insulating tank 3 and the partition wall 7.
In the present embodiment, as shown in FIGS. 1 and 2, the front side of the test chamber 5 is wide open to form an opening 20.

The air conditioning device 10 is built in the air conditioning space 15 of the environmental test device 1. The air conditioner 10 includes a cooler 6, a heating device 17, a humidifying device 8, and a blower 11.
The cooler 6 is an evaporator of a cooling device (not shown), through which a phase-changing refrigerant flows.
The cooling device is a device in which a compressor, a condenser, an expansion means, and a cooler (evaporator) 6 are connected in a ring shape, and compresses, condenses, expands, and evaporates the refrigerant, and cooler (evaporator). The surface temperature of No. 6 can be lowered.
The heating device 17 is a known electric heater.
The humidifier 8 is for releasing steam.

The air-conditioning space 15 constitutes an air-conditioning ventilation passage that communicates with the test room 5 in an annular shape, and contains an air-conditioning device 10 (including a blower 11).

The partition wall 7 is provided with openings at the top and bottom. The opening on the upper side of the partition wall 7 introduces air from the air-conditioned space 15 into the test chamber 5, and functions as a blower inlet 16.
The opening on the lower side sends air from the test chamber 5 to the air-conditioned space 15 and functions as a blower discharge port 18.
That is, the air-conditioning space 15 is formed in a part of the heat insulating tank 3 and communicates with the test chamber 5 at two locations, the blower introduction port 16 and the blower discharge port 18.

Therefore, when the blower 11 is started, the air in the test chamber 5 is introduced into the air-conditioned space 15 from the blower discharge port 18. Then, the air-conditioning space 15 is in a ventilation state, air comes into contact with the air-conditioning equipment 10, heat exchange and humidity adjustment are performed, and the adjusted air is blown into the test chamber 5 from the air blower introduction port 16.
Further, a temperature sensor 12 and a humidity sensor 13 are provided in the vicinity of the ventilation introduction port 16 of the air conditioning space 15.
When using the environmental test device 1, the blower 11 is operated to bring the air-conditioning space 15 into a ventilation state, and the air-conditioning device so that the detected values of the temperature sensor 12 and the humidity sensor 13 approach the temperature and humidity of the set environment. 10 is controlled.
As a result, a desired environment is created in the test room 5.

Next, the characteristic configuration of this embodiment will be described.
In the present embodiment, the blower introduction port 16 and the blower discharge port 18 are provided with shielding members (shielding means) 30 and 31, respectively.
In the present embodiment, the blower introduction port 16 is opened in a slightly diagonally downward posture. As shown in FIGS. 3 and 4, a quadrangular frame 33 surrounding the opening 32 is fitted in the blower inlet 16. A packing 35 is provided on the surface side (test chamber 5 side) of the frame 33.

The shielding member 30 is a plate having an area that completely covers the opening 32 of the blower introduction port 16. Then, in the present embodiment, one side of the shielding member 30 is pivotally stopped at the lower side portion of the blower introduction port 16 and swings in the direction of sealing and the direction of opening the blower introduction port 16.
Further, the swing shaft 36 of the shielding member 30 is extended as shown in FIG. 3, passes through the heat insulating wall 2, and protrudes to the outside of the heat insulating tank 3. Further, a small outer box 27 is provided on the outside of the heat insulating tank 3.
Then, as shown in FIGS. 1, 3, and 4, the swing shaft 36 passes through the heat insulating wall 2 and the outer box 27 and protrudes to the outside of the heat insulating tank 3. Further, a manual handle 37 is provided at the end of the swing shaft 36.
Therefore, when the manual handle 37 outside the heat insulating tank 3 is rotated, the shielding member 30 swings in the test chamber 5, and the shielding posture for sealing the ventilation introduction port 16 and the opening for opening the ventilation introduction port 16. You can take a posture.

Further, in the present embodiment, the manual handle 37 has an arm portion 40 and a hand-held portion 41, and the arm portion 40 is provided with a protruding pin 42.
The protruding pin 42 is urged toward the outer box 27 by a spring (not shown). Further, the protruding pin 42 has a knob 45, and by pulling the knob 45, the protruding pin 42 can be pulled toward the arm portion 40 side.

Further, the outer box 27 is provided with hole forming members 46, 47 as shown in FIGS. 3, 4, and 5.
Holes 50 and 51 with which the protruding pins 42 are engaged are formed in the hole forming members 46 and 47.
In the present embodiment, the hole 50 of one of the hole forming members 46 is at a position where the protruding pin 42 of the manual handle 37 is inserted when the shielding member 30 takes an open posture. The hole 51 of the other hole forming member 47 is at a position where the protruding pin 42 of the manual handle 37 is inserted when the shielding member 30 takes a shielding posture.

Further, in the present embodiment, the detection sensor 55 is provided inside the outer box 27 as shown in FIG. The detection sensor 55 is, for example, a photoelectric sensor or a proximity sensor. Further, in the present embodiment, as shown in FIG. 3, there is a dog member 56 in the intermediate portion of the swing shaft 36. The dog member 56 rotates together with the swing shaft 36. Then, when the shielding member 30 is in the open posture, the dog member 56 reaches the vicinity of the detection sensor 55.
That is, the detection sensor 55 detects that the shielding member 30 is separated from the blower introduction port 16 and the blower introduction port 16 is in a fully open state.
In the present embodiment, there is an electric lock circuit, and the air conditioning device 10 including the blower 11 can be driven on condition that the detection sensor 55 detects that the shielding member 30 is in the open posture.

Although the blower inlet 16 has been described above, the lower blower outlet 18 also has the same configuration.
That is, a quadrangular frame surrounding the opening is fitted in the blower discharge port 18, and a packing is provided on the surface side of the frame.

The shielding member 31 is a plate having an area that completely covers the opening of the blower discharge port 18, and one side of the shield member 31 is pivotally fixed to the upper side of the blower discharge port 18 to seal the blower discharge port 18. It swings in the direction of opening and the direction of opening.
Further, the swing shaft 60 of the shielding member 31 is extended, passes through the heat insulating wall 2, and protrudes to the outside of the outer box 27.
Then, as shown in FIG. 1, the swing shaft 60 passes through the heat insulating wall 2 and protrudes to the outside of the heat insulating tank 3. Further, a manual handle 61 is provided at the end of the swing shaft 60.
Therefore, when the manual handle 61 outside the heat insulating tank 3 is rotated, the shielding member 31 swings in the test chamber 5, and the shielding posture for sealing the blower discharge port 18 and the opening for opening the blower discharge port 18 You can take a posture.

Further, in the present embodiment, also on the lower blower discharge port 18 side, the arm portion has a protruding pin or the like, and the outer box 27 is provided with hole forming members 62 and 63 as shown in FIG. ..
In the present embodiment, one of the hole forming members 62 is in a position where the protruding pin of the manual handle 61 is inserted when the shielding member 31 takes an open posture. The hole of the other hole forming member 63 is at a position where the protruding pin of the manual handle 61 is inserted when the shielding member 31 takes a shielding posture.
Further, a detection sensor 55 is also provided on the lower blower discharge port 18 side to detect that the shielding member 31 is in the open posture.
In the present embodiment, there is an electric lock circuit, and the air conditioning device 10 including the blower 11 can be driven on condition that the detection sensor detects that the shielding member 31 is in the open posture.

Next, the test assist device 100 will be described.
The test assist device 100 has a contact plate 70 on the front surface, and the contact plate 70 is provided with an opening 21. A motor 71, which is a test object, is supported by the test assist device 100. The motor 71 protrudes from the opening 21 of the contact plate 70.
Here, the motor 71, which is the test object, is, for example, a motor that generates running power of an automobile.
Inside the test assist device 100, a power feeding device for supplying power to the motor 71 and various sensors are built-in.

Next, the positional relationship between the environmental test apparatus 1 and the test auxiliary apparatus 100 will be described.
The environmental test apparatus 1 has wheels 72 attached to the lower portion and is mounted on a rail 73 laid on the floor surface.
Therefore, the test chamber 5 of the environmental test apparatus 1 moves linearly along the rail 73 while being held at a constant height.
On the other hand, the test assist device 100 is fixed to the floor surface and is held at a constant height. Here, the outer front surface of the heat insulating tank 3 of the test chamber 5 is at the same height as the contact plate 70 of the test auxiliary device 100, and the contact plate 70 is in a parallel posture with respect to the end surface of the opening 20 of the test chamber 5. Is. Further, the height of the motor 71 attached to the test assist device 100 coincides with the height of the opening 21 formed in the contact plate 70.

Next, the function of the environmental test apparatus 1 of the present embodiment will be described along with the procedure of the environmental test.
As a preparatory step for the environmental test, as shown in FIG. 6, the environmental test device 1 is joined to the test auxiliary device 100, and the motor 71, which is the test object, is arranged in the test chamber 5.
Specifically, the environmental test device 1 is manually or manually moved linearly along the rail 73, relatively close to the test assist device 100, and the end face of the opening 20 of the heat insulating tank 3 of the test chamber 5 is assisted in the test. It is brought into surface contact with the contact plate 70 of the device 100. Then, the test chamber 5 is fixed to the test assist device 100 by a lock mechanism (not shown).
As a result, the opening 20 of the test chamber 5 is closed by the contact plate 70 of the test auxiliary device 100, and the inside of the test chamber 5 becomes a substantially sealed space.
Further, the motor 71, which is the test object, is in a state of entering the test chamber 5.

In this state, the manual handles 37 and 61 are rotated from the outside of the test chamber 5, and the shielding members 30 and 31 are rotated in the test chamber 5, and the shielding members 30 and 31 in the test chamber 5 are rotated as shown in FIG. Is set to an open posture, and the air-conditioning space 15 and the test room 5 are communicated in a ring shape by opening both the air-blowing introduction port 16 and the air-blowing discharge port 18.
Further, the detection sensor 55 detects that the blower introduction port 16 and the blower discharge port 18 are in the open state, the electrical lock of the air conditioning device 10 including the blower 11 is released, and the air conditioning device 10 can be driven. Become.
Then, after this state is set, the air conditioner 10 is driven.

As a result, the blower 11 is activated and the air in the test chamber 5 is introduced into the air conditioning space 15 from the blower discharge port 18. Then, as shown in FIG. 6, the air-conditioning space 15 is in a ventilation state, air comes into contact with the air-conditioning equipment 10, heat exchange and humidity adjustment are performed, and the adjusted air is blown into the test chamber 5 from the air blower introduction port 16. The detection signals of the temperature sensor 12 and the humidity sensor 13 are fed back, and the inside of the test chamber 5 becomes a desired environment.

The motor 71, which is the test object, is located in the test chamber 5 and is exposed to the environment of the test chamber 5. Then, for a predetermined period of time, acclimatize to the environment.
In many cases, during this time, some information is obtained from various sensors (not shown) attached to the motor 71.
Then, when a certain time elapses and the temperature of the motor 71 becomes substantially equal to the temperature in the test chamber 5, the preparation for the drive test is started.

Specifically, as shown in FIG. 7, the air conditioner 10 is stopped. Then, the manual handles 37 and 61 are rotated from the outside of the test chamber 5, and the shielding members 30 and 31 are rotated inside the test chamber 5 to be in a shielding posture as shown in FIG. Are closed together to shield between the air-conditioned space 15 and the test room 5.
Then, after this state is set, the motor 71 is driven as shown in FIG.

When the motor 71 is driven, lubricating oil or cooling water may be scattered from the motor as shown in FIG. However, since the openings 32 and 43 of the blower introduction port 16 and the blower discharge port 18 are both blocked by the shielding members 30 and 31, and the blower 11 is stopped, the scattered liquid is contained in the test chamber 5. It is prevented from entering the air-conditioned space (air-conditioning unit) 15. Therefore, the scattered matter is prevented from adhering to the cooler 6 and the heating device 17, and the air-conditioned space (air-conditioning unit) 15 is maintained in a clean state. Therefore, it is possible to prevent the scattered matter from burning or generating an offensive odor.
Further, since the scattered matter stays in the test chamber 5, cleaning work is easy.

When the above test is repeated, scattered matter may be scattered in the test chamber 5 in the form of mist. Therefore, the shielding members 30 and 31 are kept closed for a certain period of time, and then the air conditioning device 10 is used. It is desirable to restart.

In the embodiment described above, the test room 5 and the air-conditioning space (air-conditioning unit) 15 are provided in the common heat insulating tank 3, but they are separate from each other as in the environmental test device 80 shown in FIG. It may be a device.
In the environmental test apparatus 80 shown in FIG. 9, the heat insulating tank 81 constituting the test chamber 5 and the heat insulating housing 82 constituting the air conditioning space (air conditioning unit) 15 are physically separate devices.
The heat insulating tank 81 constituting the test chamber 5 is provided with a large opening 20 on the front side. Further, the back wall of the heat insulating tank 81 is provided with an opening that functions as a blower introduction port 16 and an opening that functions as a blower discharge port 18.
The shielding members 30 and 31 are provided on the test chamber 5 side of the blower introduction port 16 and the blower discharge port 18.

The air-conditioning device 10 is built in the heat-insulating housing 82 that constitutes the air-conditioning space 15.
The air-conditioned space 15 and the test chamber 5 are connected in a ring shape by a duct 83, and air circulates between them.

In the embodiment described above, the air-blowing introduction port 16 is provided with a shielding member 30, and the air-blowing discharge port 18 is provided with a shielding member 31, both of which are opened and closed independently.
On the other hand, the two shielding members 30 and 31 may be interlocked with each other.
Further, in the above-described embodiment, the shielding members 30 and 31 are plate-shaped and swing, but the present invention is not limited to this configuration. Further, the shielding members 30 and 31 are located in the vicinity of the blower introduction port 16 and the blower discharge port 18 and directly close the openings thereof, but the present invention is not limited to this configuration. ..

For example, as in the environmental test apparatus 85 shown in FIG. 10, a moving partition plate 86 that moves linearly is used as a shielding member, and a moving partition plate (shielding means) 86 is inserted into the test chamber 5 to move the inside of the test chamber 5 back and forth. It may be a partition to substantially shield the blower inlet 16 and the blower outlet 18.
Further, as in the environmental test apparatus 87 shown in FIG. 11, a roll-shaped sheet (shielding means) 88 or the like is provided, and the sheet 88 is drawn out from the roll as shown in FIG. 11 (b) to substantially introduce air. It may shield the port 16 and the air blowout port 18.
Further, as in the environmental test apparatus 90 shown in FIG. 12, a horizontal curtain-shaped shielding means 91 may be adopted.

In each of the above-described embodiments, the shielding members (shielding means) 30 and 31 are manually operated, but may be those using the power of a motor or the like.
In each of the above-described embodiments, the detection sensor 55 detects that the shielding members 30 and 31 are in the open state, but conversely, the detection sensor 55 may detect that the shielding member 30 and 31 are in the shielded state. ..
For example, if the shielding members 30 and 31 are in the shielding state, it is also recommended to use a circuit in which the blower 11 is not driven.

In the first embodiment described above, the frame 33 is fitted in the air blower introduction port 16 and the like, and the packing 35 is further provided in the frame 33. According to this configuration, it is possible to prevent the scattered matter from entering the air-conditioned space 15 almost completely.
However, the present invention is not limited to this configuration, and the presence or absence of the packing 35 is arbitrary.
For example, if a circuit for stopping the blower 11 is adopted when the shielding members 30 and 31 are in a shielding state, it can be said that it is rare for scattered matter to enter the air conditioning space 15 even without the packing 35. Rather, the presence of the packing 35 may make cleaning difficult.

It is also recommended to add a function that the shielding members 30 and 31 automatically operate depending on the condition of the test object. For example, when the motor 71, which is the test object, is placed in the test chamber 5 and is accustomed to the environment of the test chamber 5, if there is any problem in the test object, the shielding members 30 and 31 are automatically set. It is in a shielded state. For example, when the sensor detects that the lubricating oil system or the cooling system of the motor has been destroyed, the shielding members 30 and 31 are set to the shielding state.
Alternatively, the shielding members 30 and 31 are opened to operate the test object, and when the sensor detects that an abnormality has occurred in the test object, the shielding members 30 and 31 are immediately placed in the shielding state and the scattered matter is in the air-conditioned space. (Air conditioning unit) Prevents entry into 15.

1 Environmental test equipment 3 Insulation tank 5 Test room 10 Air conditioning equipment 11 Blower 21 Opening 15 Air conditioning space (air conditioning unit)
16 Blower inlet 18 Blower outlets 30, 31 Shielding member (shielding means)
32 Aperture 33 Frame 36, 60 Swing shaft 37, 61 Manual handle 55 Detection sensor (open / close detection means)
70 Contact plate 71 Motor (test object)
80, 85, 87, 90 Environmental test equipment 81 Insulation tank 82 Insulation housing 86, 88, 91 Shielding means 100 Test auxiliary equipment

Claims (8)

It is an environmental test device that can perform tests using a driven object as a test object.
It has a test room where the test object is placed and an air conditioning unit with built-in air conditioning equipment.
The test chamber has a blower inlet and a blower outlet, and air in the test chamber is discharged from the blower outlet and introduced into the air-conditioning unit, and the temperature and / or humidity is adjusted in the air-conditioning unit. Is returned to the test chamber from the air inlet to control the temperature and / or humidity in the test chamber in the environmental test apparatus.
A shielding means for shielding the blower inlet and the blower discharge port is provided.
An environmental test apparatus characterized in that when it is detected that the blower inlet and the blower discharge port are shielded by the shielding means, the air conditioner cannot be driven. The environmental test apparatus according to claim 1, wherein the air-conditioning apparatus includes a blower that blows air to the test chamber, and the air-conditioning apparatus that cannot be driven includes the blower. The environmental test apparatus according to claim 1 or 2, wherein the shielding means is opened and closed based on the state of the test object. Any of claims 1 to 3, wherein when it is detected that the blower inlet and the blower discharge port are not shielded by the shielding means, any or all of the air conditioning equipment can be driven. Environmental test equipment described in Crab. The test chamber has an open portion, and other test auxiliary devices can be connected to the open portion.
The test room can be moved relative to the test assist device.
The test object is attached to the test assisting device, and the opening portion is closed by connecting the test assisting device to the opening portion by relatively moving at least one of the test chamber and the test assisting device in the proximity direction. The environmental test apparatus according to any one of claims 1 to 4, wherein the test chamber is substantially sealed and the test object is arranged in the test chamber. It is possible to switch between an open state in which the blower inlet and the blower outlet are opened and a shielded state in which the blower inlet and the blower outlet are shielded by operating the shielding means from outside the test room. The environmental test apparatus according to any one of claims 1 to 5, wherein the environmental test apparatus is characterized by the above. The environmental test apparatus according to any one of claims 1 to 6, further comprising a heat insulating tank, wherein the inside of the heat insulating tank is partitioned to form the test chamber and the air conditioning unit. The environmental test device according to any one of claims 1 to 7, wherein the test room and the air-conditioning unit are separate devices, and the two are connected by an air passage.

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