JPH0333023Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present invention relates to an environmental testing device for conducting electrical conduction tests on the reliability of electronic components such as semiconductors under various temperature or humidity environments. In particular, the present invention relates to an environmental testing device suitable for long-term tests in high-temperature or low-temperature regions that the test device itself cannot withstand.

Conventional technology Conventional environmental testing equipment includes a fixed type (batch type) in which the test object is placed in a constant temperature and humidity equipment and various environmental tests are performed therein, and a A high-temperature bath 1 covered with insulation material
, an intermediate tank 2 and a low temperature tank 3, positive pressure high temperature air is blown to the high temperature tank 1 from a constant temperature air supply device 4 for heating only, and a constant temperature air supply device for low temperature to the low temperature tank 3. 5 also blows low-temperature air under positive pressure, and a heater 6 is installed inside the intermediate tank 2, and a conveyor belt 7 that moves into each tank is equipped, and the intermediate tank 2 is equipped with a conveyor belt 7 that is placed on the conveyor belt 7. There is a test device in which an electrical current test is performed on a tested object 8 at a specific location at a testing station 9.

Problems that the invention attempts to solve However, with such conventional environmental test equipment,
Although environmental tests can be conducted at various temperatures, since the test station is placed inside a test chamber, the test station itself cannot withstand the temperature and may be damaged. Furthermore, in such devices, since the energization test is conducted at a specific location, it has been impossible to conduct the energization test continuously. It is conceivable to install an inspection station below the conveyor belt and perform continuous energization tests, but in such a case, the inspection station is installed below, so the tester cannot visually observe the inspection status during the inspection. There was an inconvenience.

SUMMARY OF THE INVENTION In view of the drawbacks of the prior art, it is an object of the present invention to provide an apparatus that is capable of conducting continuous energization tests and that allows the inspection state to be visually observed at any time.

Means for Solving the Problems In other words, the present invention includes an environmental test chamber, a conveyance means that continuously moves within the environmental test chamber, and an environmental test chamber that extends up to the upper wall of the environmental test chamber erected on the conveyance means. The environmental test chamber is divided into a constant temperature chamber and a normal temperature chamber by at least the conveying means and the vertical plate.An environmental device is arranged on the normal temperature chamber side above the conveying means, and a power supply is provided below the conveying means. It is considered as an area,
A line-type environmental test device is used, which communicates the power supply area with the room temperature chamber, has an opening for introducing outside air into the bottom wall or side wall of the room temperature chamber, and has an air circulation means such as a fan in the room temperature chamber or the power supply area. Achieve this purpose.

The vertical plate has the same length as the conveying means in the longitudinal direction.

Function In the apparatus of the present invention, the transport means is continuously moved by the operation of the drive device, and the test device, vertical plate, and test object on the transport means are transported together with the transport means. At this time, constant temperature air is sent into the high temperature tank side of the environmental test equipment through a duct or the like.

However, the inside of the environmental test chamber is a constant temperature chamber, with a continuous conveyance means and a vertical plate fixed to the conveyance means.
Since the room is divided into a normal temperature tank and a power supply area, and outside air is introduced by the air circulation means in the room temperature tank or power supply area, the room temperature inside the room temperature tank and power supply area is maintained at room temperature.

Embodiment Hereinafter, the present invention will be described in detail according to an embodiment shown in the drawings.

In FIG. 1, 10 is an environmental test tank made of a heat insulating material 11, and the environmental test tank 10 has a duct 12.
It is connected to a constant temperature air supply device (not shown) through.

Inside the environmental test tank 10, the guide rail 1 is connected via support members 13 and 14 fixed to both side walls and sleepers 15 and 16 connected to the support members 13 and 14.
7 and 18 are installed. This guide rail 1
A conveyance means 19 is placed on the conveyance means 7 and 18 and is continuously moved by a drive means (not shown).

An environmental test tank 1 is located in the center of each conveyance means 19.
A vertical plate 22 having the same length as the conveying means 19 made of a heat insulating material that divides the inside of the room into a constant temperature bath 20 and a normal temperature bath 21.
is erected in parallel with the guide rail in the longitudinal direction, and the upper part of the vertical plate 22 extends to the upper wall of the environmental test chamber 10.

A gasket 23 is attached to the upper wall between the vertical plate 22 and the upper wall of the environmental test chamber 10 in order to eliminate the gap between the constant temperature chamber 20 and the normal temperature chamber 21. 2
4 is a test object placed on the constant temperature bath 20 side of each conveyance means 19; 25 is a test object placed on the constant temperature bath 20 side of each conveyance means 19;
1 is a test device mounted on the test device 25, and 26 is a display section of the test device 25.

Further, reference numeral 27 denotes a window for visually checking the display section 26 provided on the side wall of the environmental test chamber 10 on the room temperature chamber 21 side. Reference numeral 28 denotes a power feeding area below the conveyance means 19. In the power feeding area 28, a power feeding means 31 is installed below the conveying means 19.

Furthermore, in the present invention, in order to suppress the temperature rise in the normal temperature chamber 21, the environmental test chamber 10 is used to introduce outside air.
An opening 29 and a vent hole (not shown) are provided at a position away from the opening 29 in the bottom wall of the air conditioner, and a fan 30 for air circulation is attached to the opening 29.

In the apparatus according to the present invention, the constant temperature bath 20 and the normal temperature bath 21 (including the power supply area) are composed of a continuously moving conveyance means 19, a vertical plate 22 erected on the conveyance means 19, a guide rail 17, They are separated by sleepers 15 and support members 13.

However, the pillow wood 16 and the support member 14 are placed in the room temperature bath 2.
The upper and lower parts of 1 are communicated with each other.

Next, the operation of the embodiment according to the present invention will be explained. When high temperature air is supplied into the thermostatic chamber 20 from the thermostatic air supply means through the duct 12,
Inside the environmental test chamber 10, the temperature on the constant temperature chamber 20 side becomes high, and a temperature application test can be performed at high temperature.

The normal temperature bath 21 and the power supply area 28 are connected to the vertical plate 2
2. Since it is separated from the constant temperature bath 20 by the conveying means 19 and the like, high temperature air is difficult to flow into the normal temperature bath 21 and the power supply area 28 side.

However, since the temperature chamber 21 and the power supply area 28 and the constant temperature chamber 20 are adjacent to each other, heat is easily transferred to the temperature chamber 21 and the power supply area 28, so that the temperature inside the temperature chamber 21 and the power supply area 28 gradually rises.

If the temperature in the room temperature chamber 21 increases, it will have a negative effect on the test device 25 for inspecting the test object and the wiring of the power supply means 31 in the power supply area 28 that supplies electricity to the test device 25.

However, the opening 2 in the bottom wall of the environmental test chamber 10
9, and a fan 3 for air circulation is provided in the opening 29.
0 is attached to the room temperature chamber 21 and the power supply area 28, and the thermal energy is dispersed without accumulating in the power supply means 31 and the test device 25.
Failure due to overheating can be prevented.

Furthermore, since the test device was mounted on the top of the transport means and a window was provided on the side wall of the environmental test tank, the energization test results could be visually observed through the window at all times.

In this embodiment, the opening is provided on the bottom wall of the environmental test tank in the power supply area 28, but the opening is not limited to this, and may be provided on the side wall or top wall of the room-temperature tank. Furthermore, although a fan for air circulation is attached to the opening, it may be attached inside the room temperature bath.

FIG. 2 shows another embodiment of the device according to the present invention, in which guide rails 17 and 18 are fixed to both inner walls of the environmental test tank 10.
A transport means 19 is placed on top of the room temperature tank 21.
A ventilation hole 32 is provided in the conveying means that partitions the power supply area 28 and the power supply area 28.

Further, a normal temperature air inlet/outlet is bored in the outer wall of the test apparatus so that normal temperature air can easily pass through the test apparatus, and a fan 30 for air circulation is attached to the normal temperature air inlet/outlet of the test apparatus.

Effects As explained above, the device according to the present invention has
The environmental test chamber is divided into a constant temperature chamber and a normal temperature chamber using vertical plates, conveyance means, etc., and cooling air such as outside air is introduced into the chamber containing the test equipment, so that the temperature inside the chamber is high. It is possible to minimize failures of test equipment, power supply means, etc.

By dividing the transport means into a constant temperature side and a room temperature side using a vertical plate, it is possible to place the test equipment on the room temperature side, which makes it possible to widen the power supply area at the bottom of the transport means. , the test status during the test can be visually observed.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the device showing one embodiment of the device according to the present invention, FIG. 2 is a cross-sectional view of the device showing another embodiment, and FIG. 3 is a vertical cross-sectional view of the device showing the prior art. It is. 1...High temperature tank, 2...Intermediate tank, 3...Low temperature tank,
4, 5...Air supply device, 6...Heater, 7...
...Transport belt, 8...Test object, 9...Inspection station, 10...Environmental test tank, 11...Insulation material, 12...Duct, 13, 14...Support member,
15, 16... sleeper wood, 17, 18... guide rail, 19... transportation means, 20... constant temperature bath, 21...
... normal temperature bath, 22 ... vertical plate, 23 ... packing,
24... Test object, 25... Test device, 26...
Display section, 27...Window, 28...Power supply area, 29
...opening, 30...fan, 31...power supply means.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) An environmental test tank, a conveyor that moves continuously within the environmental test tank, and a vertical plate that extends to the top wall of the environmental test tank that is erected on the conveyor. The environmental test chamber is divided into a constant temperature chamber and a normal temperature chamber by at least the conveyance means and the vertical plate, and an environmental device is disposed on the temperature chamber side above the conveyance means, and the lower part of the conveyance means is a power supply area. The power feeding area and the normal temperature tank are communicated with each other, and an opening for introducing outside air is provided in the bottom wall or side wall constituting the normal temperature tank, and an air circulation means such as a fan is provided in the normal temperature tank or the power feeding area. Line-type environmental testing equipment. (2) The line-type environmental testing device according to claim 1 of the utility model registration claim, characterized in that the outer wall of the testing device is provided with a room temperature air inlet/outlet for allowing room temperature air to pass through the testing device.