CN220919246U - High-low temperature test chamber breather - Google Patents

Abstract

The utility model discloses a high-low temperature test box ventilation device which comprises a high-low temperature test box main body, wherein a test cabin is arranged in the high-low temperature test box main body, a partition plate is arranged at the bottom end of the inside of the test cabin, an air passing cavity is formed between the partition plate and the bottom of the test cabin, side plates are arranged on two sides of the top of the partition plate, a placing frame is arranged between the bottom ends of the side plates, air ejector pipes are arranged on two sides of the test cabin, the bottom ends of the air ejector pipes are communicated with the inside of the air passing cavity through a branch pipe, and a rotating mechanism is arranged on the back side of the air ejector pipes. The ventilation device of the high-low temperature test chamber can uniformly control the gas when the gas is introduced, so that the air in the test chamber is more balanced, and the accuracy of product test is improved.

Description

High-low temperature test chamber breather

Technical Field

The utility model relates to the technical field of high-low temperature test boxes, in particular to a ventilation device of a high-low temperature test box.

Background

The high-low temperature test box is suitable for high-temperature and low-temperature reliability tests of industrial products.

At present, the high-low temperature test chamber needs to perform the mutual conversion between high temperature and low temperature in the test process, but the conventional high-low temperature test chamber ventilation device directly lets in gas into a test chamber, and because the gas cannot be uniformly controlled during the gas is let in, the air in the test chamber is easily caused to be unbalanced, namely, the temperature change at the position close to a vent is quicker, the temperature change at the position far away from the vent is slower, and the accuracy of product test is influenced to a certain extent.

Disclosure of utility model

The utility model aims to provide a high-low temperature test box ventilator, which solves the problems that the conventional high-low temperature test box ventilator provided by the background art cannot uniformly control the gas inlet, so that the air in a test bin is unbalanced easily to influence the accuracy of product test.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high low temperature test chamber breather, includes high low temperature test chamber main part, the inside of high low temperature test chamber main part is equipped with the test chamber, the inside bottom of test chamber is equipped with the baffle, the baffle forms the wind chamber with the bottom of test chamber, just the both sides at baffle top all are equipped with the curb plate, be equipped with the rack between the curb plate bottom, just the both sides of test chamber all are equipped with the jet-propelled pipe, the bottom of jet-propelled pipe is linked together with the inside of wind chamber through the branch pipe, and the dorsal part of jet-propelled pipe is equipped with slewing mechanism.

Preferably, the rotating mechanism comprises a rotating rod, a stepping motor and a rotating sleeve, wherein the rotating rod is fixed on the inner walls of the two sides of the test bin through a bracket, the stepping motor is fixed at the top of the rotating rod bracket, and the rotating sleeve is fixedly sleeved outside the rotating rod and fixedly connected with the back side of the air ejector tube.

Preferably, the branch pipes penetrate through two sides of the partition board, and a hose is connected between the top ends of the branch pipes and the bottom ends of the air injection pipes.

Preferably, a plurality of air holes are formed in the placing frame and the side plates, and the air holes in the placing frame and the side plates are uniformly distributed.

Preferably, a U-shaped frame is arranged below the placement frame, a rotating shaft is arranged in the U-shaped frame, dispersing plates are arranged at the front end and the rear end of the rotating shaft, and a plurality of strip-shaped openings are formed in the dispersing plates.

Preferably, the two sides of the U-shaped frame are provided with embedded blocks, and one side corresponding to the bottom end of the side plate is provided with an embedded seat matched with the embedded block in structure.

Compared with the prior art, the utility model has the beneficial effects that: the ventilation device of the high-low temperature test chamber can uniformly control the gas when the gas is introduced, so that the air in the test chamber is more balanced, and the accuracy of product test is improved. The device is through carrying the air to the inside cross wind intracavity that is equipped with of high low temperature test box in advance, gets into the inside gaseous accessible baffle of cross wind intracavity and spreads on the rack to the inside gaseous part of entering cross wind intracavity also can flow into the jet stack that test storehouse both sides were equipped with, the jet stack can spread the even permeation curb plate of gas under rotating mechanism's drive, in order to make the more balanced product test scope that lets in of gas.

Drawings

FIG. 1 is a schematic diagram of a ventilation device for a high and low temperature test chamber according to the present utility model;

FIG. 2 is a schematic diagram of the internal structure of a U-shaped frame of a ventilation device of a high-low temperature test chamber according to the utility model;

FIG. 3 is a schematic diagram of a partition structure of a ventilation device for a high and low temperature test chamber according to the present utility model.

In the figure: 1. a high and low temperature test chamber body; 2. a test bin; 3. a side plate; 4. a placing rack; 5. a partition plate; 6. a wind passing cavity; 7. a gas lance; 8. a rotating rod; 9. a stepping motor; 10. a rotating sleeve; 11. a U-shaped frame; 12. a rotating shaft; 13. a hose; 14. a branch pipe; 15. a dispersion plate; 16. and (5) embedding blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the high-low temperature test box ventilation device comprises a high-low temperature test box main body 1, a test cabin 2 is arranged in the high-low temperature test box main body 1, a partition board 5 is arranged at the bottom end of the inside of the test cabin 2, a rectangular through hole is arranged in the middle of the partition board 5, an air passing cavity 6 is formed at the bottom of the partition board 5 and the bottom of the test cabin 2, an air exchanging pipe is arranged at the position corresponding to the air passing cavity 6 on the outer wall of the high-low temperature test box main body 1, side plates 3 are arranged at two sides of the top of the partition board 5, a placing frame 4 is arranged between the bottom ends of the side plates 3, two sides of the placing frame 4 are fixedly welded at one side corresponding to the bottom ends of the side plates 3, air spraying pipes 7 are arranged at two sides of the test cabin 2, a plurality of spray heads are arranged at one side corresponding to the air spraying pipes 7, the bottom ends of the air spraying pipes 7 are communicated with the inside of the air passing cavity 6 through branch pipes 14, and the back sides of the air spraying pipes 7 are provided with rotating mechanisms, the high-low temperature test box main body 1 of this structure can be through the inside of ventilation pipe with gas delivery to cross wind chamber 6 in advance, the inside gas that gets into cross wind chamber 6 can diffuse on to rack 4 through the rectangle opening on baffle 5, and the inside gaseous part of entering cross wind chamber 6 also can flow into the inside of jet-propelled pipe 7 through branch pipe 14, jet-propelled pipe 7 can swing evenly and permeate curb plate 3 with gas under rotating mechanism's drive and spread, thereby realize playing the effect of even control when letting in to gas, make the test product wind-proof on the rack 4 more balanced, avoid current high-low temperature test box main body 1 all to directly let in the inside of test storehouse 2 with gas easily lead to the test product to receive the unbalanced condition of wind, and then be favorable to improving the accuracy of product test, rotating mechanism includes bull stick 8, the rotating rod 8 is fixed on the inner walls of the two sides of the test bin 2 through the support, the stepping motor 9 is fixed at the top of the support of the rotating rod 8, the output end of the stepping motor 9 is connected with the top end of the support of the rotating rod 8, the rotating sleeve 10 is fixedly sleeved outside the rotating rod 8 and is fixedly connected with the back side of the air spraying pipe 7, the rotating rod 8 can be driven to rotate when the stepping motor 9 with the structure is driven, the rotating rod 8 can drive the air spraying pipe 7 to swing through the rotating sleeve 10 when rotating, so that the air spraying pipe 7 can more uniformly lead air into the space between the side plates 3, the branch pipes 14 penetrate through the two sides of the partition plate 5, the hose 13 with the structure can swing by matching with the air spraying pipe 7 to ensure the swing amplitude of the branch pipes, a plurality of air holes are arranged on the placing frame 4 and the side plates 3, the air holes on the placing frame 4 and the side plates 3 are uniformly distributed, the rack 4 and the side plates 3 of the structure can lead gas to the inside of the test bin 2 more uniformly so as to carry out temperature test on products, the U-shaped frame 11 is arranged below the rack 4, the rotating shafts 12 are arranged inside the U-shaped frame 11, two ends of the rotating shafts 12 are connected with the inner walls of two sides of the U-shaped frame 11 through bearings, the front end and the rear end of the rotating shafts 12 are respectively provided with a dispersing plate 15, a plurality of strip-shaped openings are arranged on the dispersing plates 15, the U-shaped frame 11 of the structure can lead the gas inside the wind cavity 6 to be led into the inside of the U-shaped frame 11 to contact the dispersing plates 15, the dispersing plates 15 can rotate by a certain extent through the rotating shafts 12 so that the plurality of strip-shaped openings disperse the gas, the effect of diffusing the gas to the upper side of the rack 4 is better, the two sides of the U-shaped frame 11 are respectively provided with the embedded blocks 16, and the side corresponding to the bottom end of the side plate 3 is provided with an embedded seat matched with the embedded block 16 in structure, and the U-shaped frame 11 with the structure can be conveniently disassembled and assembled below the placing frame 4 by embedding the embedded block 16 into the embedded seat at the side corresponding to the bottom end of the side plate 3.

Working principle: when the high-low temperature test box ventilation device is used, firstly, a product to be tested is placed at the top of the placement frame 4, then the high-low temperature test box main body 1 can convey replaced gas into the air passing cavity 6 in advance through the ventilation pipe, most of the gas entering the air passing cavity 6 flows upwards from the rectangular through holes on the partition plate 5, when the gas flows into the U-shaped frame 11 and contacts the dispersing plate 15, the dispersing plate 15 rotates by a certain extent under the action of the rotating shaft 12, and the gas can diffuse to the upper part of the placement frame 4 through the plurality of strip-shaped openings on the dispersing plate 15, and get into the inside gaseous part of wind chamber 6 and also can flow into the inside of jet-propelled pipe 7 through branch pipe 14 and hose 13, at this moment start step motor 9, can drive bull stick 8 and take place the rotation when step motor 9 drives, rethread adapter 10 drives jet-propelled pipe 7 and swings when bull stick 8 rotates, the space between curb plate 3 can be evenly let in with gas to jet-propelled pipe 7, the whole ventilation of the product of placing on rack 4 can be more balanced, simultaneously when need not use dispersion board 15 to disperse gas, U-shaped frame 11 also can be through sliding out the gomphosis seat of gomphosis piece 16 from the corresponding one side in curb plate 3 bottom, in order to dismantle in the rack 4 below fast, thereby accomplish a series of works.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a high low temperature test box breather, includes high low temperature test box main part (1), the inside of high low temperature test box main part (1) is equipped with test bin (2), its characterized in that: the inside bottom of test storehouse (2) is equipped with baffle (5), the bottom of baffle (5) and test storehouse (2) forms wind chamber (6), just the both sides at baffle (5) top all are equipped with curb plate (3), be equipped with rack (4) between curb plate (3) bottom, just the both sides of test storehouse (2) all are equipped with jet-propelled pipe (7), branch pipe (14) are linked together with the inside of wind chamber (6) are led to the bottom of jet-propelled pipe (7), and the dorsal part of jet-propelled pipe (7) is equipped with rotary mechanism.

2. A high and low temperature test chamber ventilation device as claimed in claim 1, wherein: the rotating mechanism comprises a rotating rod (8), a stepping motor (9) and a rotating sleeve (10), wherein the rotating rod (8) is fixed on the inner walls of two sides of the test bin (2) through a support, the stepping motor (9) is fixed at the top of the support of the rotating rod (8), and the rotating sleeve (10) is fixedly sleeved outside the rotating rod (8) and fixedly connected with the back side of the air ejector tube (7).

3. A high and low temperature test chamber ventilation device as claimed in claim 1, wherein: the branch pipes (14) penetrate through two sides of the partition board (5), and a hose (13) is connected between the top ends of the branch pipes (14) and the bottom ends of the air injection pipes (7).

4. A high and low temperature test chamber ventilation device as claimed in claim 1, wherein: the rack (4) and the side plates (3) are provided with a plurality of air holes, and the air holes on the rack (4) and the side plates (3) are uniformly distributed.

5. A high and low temperature test chamber ventilation device as claimed in claim 1, wherein: the lower part of the placing frame (4) is provided with a U-shaped frame (11), a rotating shaft (12) is arranged in the U-shaped frame (11), the front end and the rear end of the rotating shaft (12) are respectively provided with a dispersing plate (15), and a plurality of strip-shaped openings are formed in the dispersing plates (15).

6. A high and low temperature test chamber ventilation apparatus as claimed in claim 5, wherein: two sides of the U-shaped frame (11) are provided with embedded blocks (16), and one side corresponding to the bottom end of the side plate (3) is provided with an embedded seat which is matched with the embedded blocks (16) in structure.