SU583413A1 - Climate chamber - Google Patents

Description

The invention relates to the field of test equipment, in particular to chambers for environmental testing of electronic products.

The climatic 1st chamber is known, soda {- 5 jelly thermally insulated casing, in the walls of which the loading and unloading trays are located, and inside the casing there is a fan, heating and cooling elements and roto | - a storage unit, in the bath bar of which the canisters for the tested items are marked, contact pads and power source 1.

However, in such a camera it is impossible to connect to the power source a large number of IE-products.

The purpose of the invention is to increase the speed of the VIA camera when testing products.

This goal is achieved by the fact that, in the proposed chamber, racks with a guide ring are placed on the fixed bottom of the rotor-20 accumulator, and a load resistors along the perimeter of which are connected to the contact blocks of the stone through the conductor, 2G

2

mounted on the rotor-accumulator, connected to the power source. The contact pads are spring loaded and connected to the canisters for the tested products.

FIG. 1 depicts the described camera, in general; in fig. 2 - part of the accumulator rotor; in fig. 3 is a part of the electronic circuit of the power source and the source of input signals.

The chamber contains a thermally insulated Horpus 1, in the walls of which there are loading 2 and unloading 3 trays. Inside the housing 1 are placed the heating and cooling elements 4 installed in the cavity 5, and the rotor-drive 6.

The rotor-storage; b consists of a drum 7 with canisters 8 for the tested products U, contact pads 10 and a fixed bottom 11 to which the stands 12 are attached, spreading on them with a guide ring 1 v3. Ring 13 in the area of tray 2 is made 1 L, the inner edges 15 of rings 13 limit the movement of the contact pads 10 in the radial direction. The shoes 1O are equipped with load junction resistors 16 and are able to shift in the radial direction by means of rods 17 under the influence of springs 18 The second grooves 19 of the drum 7; On the drum 7, there is a current-carrying collector 20 with current-carrying rings 21, adjacent to the brushes 22 in the brush holders 23, electrically connected with the probes 24 rings 10 on one side and the power sources and and single signals Uj on the other hand. The rotor drive 6 pr) Ivodits movement from the drive 25,

Under the case 1, a cassette 26 dp is installed.

The camera works as follows, Lo tray 2 product 9 enters one of the canisters 8 of the drum 7 of the rotor-drive 6 ,. At this time, the block 10 is pressed across ke A by the rods 17, located in the grooves 19 of the drum 7, by means of the spring 18 and is located in the recesses 14 of the rings 13. When the canister 8 is filled with products 9, the drum 7 is rotated by a drive 25 by a given angle in arrow B and delivers another empty canister 8. In this case, the first filled canister 8 moves together with the drum 7 and the pad 10 exits the recess 14, moves to the center arrow B due to the impact the inner edges 15 of the rings 13, the probes 24, having come closer together, contact the leads of the product 9, and the spring 18 is compressed. While the second canister 8 is filled with products 9 from tray 2, the products 9 of the second canister 8 are in contact. In this case, it is possible to conduct quality control of the contact, since for the entire test period they remain in this position. Then the drum 7 is rotated until all of the canisters 8 are not filled with the products 9 and contacted. Thereafter, the product 9 is supplied with an electrical load from the power source through the brushes 22 in the brush holders 23 and the rings 21 of the collector 20,

When testing with a rough load, the supply voltage, input signals and the load resistors 16, Probes 24 pads 10 must be connected to the products.

They are connected by wires with jEia contacts, for example, a printed circuit board on which resistors 16 are placed. The supply voltage and signals to products 9 are fed through brushes 22 and rings 21 connected through

0 circuit board contacts with 1, 2, 3 ,,, zoids 24 ksdodki 10,

The climate regime in the chamber is created by means of a fan 27 with heating and cooling elements located in the cavity 5 and providing a circular circulation of the medium in the useful volume. After testing, the canisters 8 are fed to the load, and the products 9 through the tray 3 are poured into the cassette 26,

Claims (1)

Formula izob {) eteni The climate chamber contains an insulated casing with loading and unloading walls located in its walls, and a fan, heating and cooling elements and a storage rotor are installed inside the casing, and the canisters for the tested products are placed in the drum. , in order to increase the speed of the camera, in it to a fixed bottom of the rotor drive are attached the racks with a guide ring located on them, along the perimeter of which are th resistors connected to the contact pads, through which the current-carrying collector rotorenakopitele mounted on, connected to a power source and the contact pads are biased and associated with the canisters to manufacturing test. Sources of information taken into account in the examination; 1, USSR Author's Certificate No. 473297, N OZ K 13 / OO, 1972. h 2it 21 one 23 yg