JPH0330863Y2 - - Google Patents

Description

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

Conventional technology Conventional environmental test equipment includes a fixed type (batch type) in which a test object is placed in a constant temperature and humidity equipment and various environmental tests are conducted therein, and a fixed type (batch type), as shown in Figure 2. As shown, high temperature tank 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. Positive-pressure low-temperature air is blown from 5, and a heater 6 is installed inside the intermediate tank 2, and a conveyor belt 7 that moves within each tank is installed, and the intermediate tank 2 is placed on the conveyor belt 7. The test object 8 that has been tested is placed at a specific location,
There is one in which the test station 9 conducts the energization test.

Problems that the invention attempts to solve However, with such conventional environmental test equipment,
Although it has the advantage of being able to perform environmental tests under various temperatures, it has the disadvantage that the test station itself cannot withstand the temperature because the test station is placed inside the test chamber. In addition, since such devices are designed to conduct energization tests only at specific locations, it is difficult to conduct energization tests continuously over a long period of time. It is conceivable to install an inspection station below the conveyor belt and perform continuous energization tests, but in such a case, the inspection status may not be visible during the inspection because the inspection station is installed below. There is an inconvenience.

Therefore, in view of the drawbacks of the conventional technology, the present invention
It is an object of the present invention to provide a device which is capable of continuous energization tests and which allows the inspection state to be visually observed at any time.

Means for Solving the Problem In other words, the present invention includes an environmental test tank connected to a constant temperature air supply device through a duct, guide rails parallel to each other laid in the longitudinal direction within the environmental test tank, and a guide rail connected to the guide rail. The guide rail, the conveying means, and the vertical plate keep the environmental test chamber at a constant temperature. A test device is arranged on the room temperature tank side above the transport means which is divided into a tank and a normal temperature tank, a window is provided on the side wall or the top wall of the environmental test tank in which the test device is arranged, and a power supply is provided below the transport means. This purpose is achieved using a line-type environmental test device that communicates the power supply area and the room temperature chamber.

Note that the vertical plate is fixed upright along the guide rail.

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 through the duct to the constant-temperature chamber inside the environmental test equipment.

However, since the inside of the environmental test chamber is divided into a constant temperature chamber and a room temperature chamber by a vertical plate or the like on a continuous conveying means, the test apparatus is maintained at room temperature.
Therefore, with the apparatus according to the present invention, continuous tests can be performed without the test apparatus being broken due to exposure to high temperatures.

Furthermore, during the test, a window is provided on the side wall or top wall of the environmental test tank on the room temperature tank side, so the tester can visually observe the test results in the environmental test at any time.

Embodiment The present invention will be explained in detail below according to an embodiment shown in FIG.

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

Guide rails 17 and 18 are laid in the longitudinal direction of the environmental test chamber 10 via support members 13 and 14 fixed to both side walls thereof and sleepers 15 and 16 connected to the support members 13 and 14. has been done. A transport means 19 is placed on the guide rails 17, 18 and is continuously moved by a drive means (not shown).

At the center of this conveying means 19, an environmental test tank 1 is provided.
A vertical plate 22 having the same length as the conveying means and made of a heat insulating material and partitioning the upper part of the conveying means in 0 into a constant temperature bath 20 and a normal temperature bath 21 is fixed in parallel with the guide rail.

Further, 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 more completely partition the constant temperature chamber 20 and the normal temperature chamber 21.

24 is a test object placed on the thermostatic chamber 20 side of the transport means 19; 25 is a test device placed on the normal temperature chamber 21 side of each transport means 19; and 26 is a display section of the test device 25. It is.

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 supply area installed below each conveyance means.

In the apparatus according to the present invention, the inside of the environmental test tank 10 includes a conveying means 19 that moves continuously, a vertical plate 22 fixed to the conveying means 19, and a guide rail 17.
, the sleeper 15 and the support member 13 make up the constant temperature bath 2.
0 and a normal temperature tank 21.

The support member 14 is provided with a notch for communicating the lower side of the conveying means 12 (power feeding area) and the upper side of the conveying means (normal temperature bath side).

As explained above, in the device according to the present invention,
From the constant temperature air supply means through the duct 2 to the constant temperature chamber 2
Low temperature or high temperature air is supplied into the chamber. As a result, inside the environmental test chamber 10, there is a constant temperature chamber 20 and a normal temperature chamber 21.
It can be divided into

The test object 24 placed on each transport means on the thermostatic chamber 20 side is heated or cooled to a predetermined temperature during transport, while the test device 25
A current test is conducted regarding 4.

Since the energization result is always displayed on the display section 26, the tester can visually check it through the window 27. Inside the constant temperature chamber 21, a vertical plate 22 etc.
Because the area is separated, it does not get too hot or cold.

Note that the power supply area 21 needs to be as wide as possible in order to perform various types of energization tests.

Although not shown in the drawings, electricity is supplied to the power supply area 21 according to the present invention by collecting it from the outside using a current collection brush or the like.

Further, in this embodiment, the window is provided on the side wall of the environmental test tank, but the window is not limited to this, and may be provided on the upper wall depending on the position of the display section of the test device.

Effects As explained above, the device according to the present invention has
Since the test equipment and the inside of the thermostatic chamber are isolated, the test equipment is less likely to be damaged.

Further, since the upper side of the conveying means is divided into a normal temperature chamber and a high temperature chamber by a vertical plate, the testing apparatus can be provided above the conveying means for easy viewing. Therefore, a window can be provided on the side wall or top wall of the environmental test tank, allowing the tester to visually observe the test conditions at all times.

Furthermore, since the test device is provided above the transport means and the power supply area below the transport means is wide, a large number of power supplies can be supplied, and various types of energization tests can be performed.

Since the power supply area is configured to be energized by a current collector brush, etc., it is possible to perform continuous energization tests.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an apparatus showing one embodiment of the apparatus according to the present invention, and FIG. 2 is a longitudinal cross-sectional view of the apparatus showing a conventional technique. 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.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) An environmental test tank connected to a constant temperature air supply device through a duct, and mutually parallel guide rails laid in the longitudinal direction within the environmental test tank,
It consists of a conveying means that moves continuously along the guide rail, and a vertical plate fixed to the conveying means and extending to the upper wall of the environmental test chamber. A test device is arranged on the normal temperature tank side above the transport means which is divided into a constant temperature tank and a normal temperature tank, and a window is provided on the side wall or upper wall of the environmental test tank in which the test device is arranged, and a window is provided below the transport means. A line-type environmental test device characterized in that the power supply area is the power supply area, and the power supply area and the room temperature chamber are in communication. (2) The line-type environmental testing device according to claim 1 of the utility model registration claim, characterized in that a gasket is attached between the top of the vertical plate fixed on the conveying means and the top wall of the environmental testing tank. .