Visual high and low temperature test box

Abstract

The utility model relates to the technical field of high and low temperature test boxes, and discloses a visual high and low temperature test box, which comprises a box body, the top end of the box body is provided with a visual unit, the visual unit comprises a shell, the bottom end of the shell is communicated with the inside of the box body, the outer wall of the shell is fixedly sleeved with a sleeve plate, and the outer wall of the sleeve plate is provided with a plurality of through holes. And a plurality of first bolts are inserted into the upper surface of the sleeve plate. Through the cooperation between the box body and the visual unit, a sample image can be recorded by the industrial camera conveniently, the transparent partition plate with the cavity structure is arranged in the shell, a good thermal insulation effect is achieved, negative effects of high and low temperatures on the industrial camera can be prevented, recordable visualization of the sample in the box body can be achieved, and the visual effect is good. The appearance change (such as expansion, shrinkage, cracking, melting and discoloration) of the sample at the extreme temperature can be recorded, a worker does not need to frequently open the box for checking, the temperature in the box body does not fluctuate, and high-quality test operation on the sample is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of high and low temperature test chamber technology, specifically a visual high and low temperature test chamber. Background Technology

[0002] High and low temperature test chambers (also known as constant temperature and humidity test chambers or environmental test chambers) are testing equipment used to simulate extreme temperature environments (high temperature and low temperature). They are widely used in electronics, electrical appliances, automotive, aerospace, materials science, and other fields to evaluate the performance, reliability, and durability of products under high and low temperature environments. High Temperature Testing: Simulates high-temperature environments (e.g., +80℃ to +200℃) to test the stability of products at high temperatures, material deformation, and electronic component failure. Applications: Automotive parts, electronic components, batteries, etc. Low Temperature Testing: Simulates low-temperature environments (e.g., -40℃ to -70℃) to test the embrittlement, mechanical property degradation, and lubricant solidification of products at low temperatures. Applications: Plastic products, rubber materials, refrigeration equipment, etc. Temperature Cycling Testing: Rapidly switches between high and low temperatures to simulate temperature changes that products may encounter in actual use, evaluating their adaptability and lifespan. Applications: Aerospace equipment, outdoor electronic products, etc. Humidity Control (Optional Function): Some test chambers can be combined with humidity control to simulate high-temperature and high-humidity or low-temperature and low-humidity environments to test the moisture-proof and corrosion-proof performance of products. Currently available high and low temperature visualization test chambers cannot perform recordable visualization and cannot record the appearance changes of samples under extreme temperatures (such as expansion, contraction, cracking, melting, discoloration, etc.). At present, in order to record the changes of samples under unit conditions, it is necessary to frequently open the chamber for inspection, which is cumbersome and has a high probability of human error. In addition, it will cause temperature fluctuations inside the chamber, which is not conducive to high-quality testing of samples. Utility Model Content

[0003] The purpose of this invention is to provide a visual high and low temperature test chamber that enables recordable visualization of samples inside the chamber. It can record the appearance changes of samples under extreme temperatures (such as expansion, contraction, cracking, melting, discoloration, etc.), eliminating the need for frequent opening and inspection by workers. The temperature inside the chamber does not fluctuate, which is conducive to high-quality testing of samples and solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a visual high and low temperature test chamber, comprising: a chamber body, the top of which is provided with a visual unit, the visual unit comprising: a shell, the bottom of which is connected to the interior of the chamber body, a sleeve plate fixedly fitted to the outer wall of the shell, a plurality of first bolts inserted into the upper surface of the sleeve plate, the first bolts penetrating the sleeve plate and threadedly connected to the chamber body, an industrial camera installed at the top of the interior of the shell, a transparent partition provided below the industrial camera, a heat insulation layer provided inside the transparent partition, a base fixedly fitted to the outer side of the transparent partition, a soft pad fixedly fitted to the outer wall of the base, the soft pad abutting against the inner wall of the shell, a second bolt inserted into the surface of the base, the second bolt sequentially penetrating the base and the soft pad and threadedly connected to the shell, and light strips installed on both sides of the top of the interior of the shell.

[0005] Preferably, the housing is composed of an outer shell, a sandwich layer, an inner shell, and a shell cover. The outer wall of the outer shell is fixedly connected to the inner wall of the sleeve plate. The sandwich layer is fixedly connected to the inner wall of the outer shell. The inner shell is fixedly connected to the inner wall of the sandwich layer. The shell cover is installed at the top of the outer shell.

[0006] Preferably, the top of the cover is provided with a protective unit, the protective unit including: a first vertical pipe and a second vertical pipe, the first vertical pipe is fixedly connected to one side of the top of the cover, and a one-way valve is fixedly connected to the top of the first vertical pipe, the second vertical pipe is fixedly connected to the other side of the top of the cover, and a first pipeline valve is fixedly connected to the top of the second vertical pipe.

[0007] Preferably, an auxiliary unit is provided below the transparent partition. The auxiliary unit includes: a scraper, the top of which is in contact with the transparent partition, and the bottom of which is pressed against a grooved plate. A threaded block is fixedly connected to the lower interior of the scraper. A third bolt is inserted into the lower surface of the grooved plate and is threaded through the grooved plate and connected to the threaded block. A linear reciprocating screw module is connected to the rear side of the grooved plate and is mounted on the housing.

[0008] Preferably, a second pipeline valve is fixedly connected to the lower surface of the groove plate.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This visualized high and low temperature test chamber has the following advantages over traditional technology:

[0010] By coordinating the enclosure and the visual unit, the sample to be tested is first placed inside the enclosure. The enclosure is then closed and activated to perform high and low temperature tests on the sample inside. During this process, the user activates the industrial camera and LED strip, which illuminates the sample inside the enclosure, allowing the camera to capture images of the sample. The transparent partition with a cavity structure inside the enclosure provides excellent thermal insulation, preventing negative impacts from high and low temperatures on the industrial camera. This enables recordable visualization of the sample inside the enclosure, recording changes in the sample's appearance under extreme temperatures (such as expansion, contraction, cracking, melting, discoloration, etc.). Frequent opening and checking by workers is unnecessary, and the temperature inside the enclosure remains stable, facilitating high-quality sample testing.

[0011] Through the coordination of the enclosure, viewing unit, and auxiliary unit, during the transition from a cold to a hot state inside the enclosure, when the moisture in the residual air initially liquefies with the cold transparent partition, the user activates the linear reciprocating screw module to cause the groove plate and scraper to move laterally back and forth. The scraper can scrape and clean the water droplets on the lower surface of the transparent partition, and the scraped water droplets will flow into the interior of the groove plate for temporary storage, preventing water droplets from falling. This allows for cleaning and maintenance of the internal components of the enclosure without opening it during temperature changes. Through the coordination of the enclosure, viewing unit, and protective unit, the user can connect to the suction port of an external vacuum pump via the one-way valve top connector and external connecting pipe to suck out the air from the environment around the industrial camera above the enclosure, creating a near-vacuum environment around the industrial camera. This near-vacuum environment provides a certain degree of heat insulation, further reducing the impact of high and low temperatures on the industrial camera and facilitating its long-term stable normal operation. Attached Figure Description

[0012] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 Front sectional view of the middle shell;

[0015] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0016] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 5 for Figure 2 Enlarged view at point B. In the diagram: 1. Box body, 2. Shell, 201. Outer shell, 202. Interlayer, 203. Inner shell, 204. Shell cover, 3. Sleeve plate, 4. First bolt, 5. Industrial camera, 6. Transparent partition, 7. Insulation layer, 8. Base, 9. Pad, 10. Second bolt, 11. LED strip, 12. First vertical pipe, 13. One-way valve, 14. Second vertical pipe, 15. First pipeline valve, 16. Scraper, 17. Groove plate, 18. Threaded block, 19. Third bolt, 20. Linear reciprocating screw module, 21. Second pipeline valve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5 This utility model provides a technical solution: a visual high and low temperature test chamber, comprising: a chamber body 1, a visual unit at the top of the chamber body 1, the visual unit comprising: a shell 2, the bottom of the shell 2 being connected to the interior of the chamber body 1, a sleeve plate 3 being fixedly fitted to the outer wall of the shell 2, a plurality of first bolts 4 being inserted into the upper surface of the sleeve plate 3, the first bolts 4 passing through the sleeve plate 3 and threadedly connected to the chamber body 1, an industrial camera 5 being installed at the top of the interior of the shell 2, a transparent partition 6 being provided below the industrial camera 5, a heat insulation layer 7 being provided inside the transparent partition 6, a base 8 being fixedly fitted to the outer side of the transparent partition 6, a soft pad 9 being fixedly fitted to the outer wall of the base 8, the soft pad 9 being tightly abutting against the inner wall of the shell 2, a second bolt 10 being inserted into the surface of the base 8, the second bolt 10 passing through the base 8 and the soft pad 9 in sequence and threadedly connected to the shell 2, and light strips 11 being installed on both sides of the top of the interior of the shell 2.

[0020] In the specific implementation process, it is worth noting that chamber 1 is a horizontal high and low temperature test chamber, model PH101T, manufactured by Guangzhou Wusuo Environmental Instrument Co., Ltd. This is a testing device used to simulate extreme temperature environments (high and low temperatures), widely applied in electronics, electrical appliances, automobiles, aerospace, materials science, and other fields to evaluate the performance, reliability, and durability of products under high and low temperature environments. Industrial camera 5 is model JC-MF, but other models can also be used, as long as the requirements are met. The power cord of industrial camera 5 is connected to an external power supply device to provide the necessary power for its operation. After starting up, industrial camera 5 can acquire images of its lower surface (inside chamber 1) and can transmit the acquired images to an external computer via a data cable. The computer is used to record the samples inside the chamber 1, that is, to record the appearance changes of the samples under extreme temperatures (such as expansion, contraction, cracking, melting, discoloration, etc.). The transparent partition 6 is made of transparent quartz glass, which has excellent temperature resistance and can remain stable under extreme temperature conditions. It can meet the normal use of the high and low temperature test chamber under temperature conditions of -70℃ to +200℃. The transparent partition 6 has a cavity structure, and the inside of the cavity is a heat insulation layer 7, which is filled with inert gas (argon). The soft pad 9 is made of fluorosilicone rubber, which combines the oil resistance of fluororubber and the low temperature performance of silicone rubber. The cost is lower than that of perfluororubber. The power cord of the light strip 11 is connected to an external power supply device to provide the power required for the operation of the light strip 11. After the light strip 11 is running, it can illuminate the area below it.

[0021] Furthermore, the shell 2 is composed of an outer shell 201, a sandwich 202, an inner shell 203, and a cover 204. The outer wall of the outer shell 201 is fixedly connected to the inner wall of the sleeve plate 3. The sandwich 202 is fixedly connected to the inner wall of the outer shell 201. The inner shell 203 is fixedly connected to the inner wall of the sandwich 202. The cover 204 is installed on the top of the outer shell 201.

[0022] In the specific implementation process, it is worth noting that the outer shell 201 is made of rigid plastic or metal to ensure the rigidity of the shell 2. The interlayer 202 is made of ceramic fiber paper, which has excellent heat insulation performance. The inner shell 203 is made of aluminum silicate fiberboard, which has a very low thermal conductivity. Together with the interlayer 202, it can give the shell 2 excellent heat insulation performance and reduce the impact of the outside temperature on the inside of the box 1. The shell cover 204 is installed with the outer shell 201, interlayer 202 and inner shell 203 through fasteners (screws), which can realize the disassembly and installation of the shell cover 204, which facilitates the subsequent maintenance and repair of the internal structural components of the shell 2.

[0023] Furthermore, a protective unit is provided at the top of the cover 204. The protective unit includes a first vertical tube 12 and a second vertical tube 14. The first vertical tube 12 is fixed to one side of the top of the cover 204, and a one-way valve 13 is fixed to the top of the first vertical tube 12. The second vertical tube 14 is fixed to the other side of the top of the cover 204, and a first pipeline valve 15 is fixed to the top of the second vertical tube 14.

[0024] In the specific implementation process, it is worth noting that the second vertical pipe 14 and the first vertical pipe 12 are both connected to the upper interior of the housing 2. The one-way valve 13 only allows air to pass from bottom to top. After the first pipe valve 15 is opened and closed, the air pressure inside the upper interior of the housing 2 is the same as that outside, which makes it easy to disassemble the housing cover 204 smoothly.

[0025] Furthermore, an auxiliary unit is provided below the transparent partition 6. The auxiliary unit includes a scraper 16, the top of which is in contact with the transparent partition 6, and the bottom of the scraper 16 is pressed against a grooved plate 17. A threaded block 18 is fixedly connected to the lower interior of the scraper 16. A third bolt 19 is inserted into the lower surface of the grooved plate 17. The third bolt 19 passes through the grooved plate 17 and is threadedly connected to the threaded block 18. A linear reciprocating screw module 20 is connected to the rear side of the grooved plate 17. The linear reciprocating screw module 20 is mounted on the housing 2.

[0026] In the specific implementation process, it is worth noting that the scraper 16 is made of fluorosilicone rubber. During the transverse reciprocating motion, it can scrape off the water droplets accumulated on the surface of the transparent partition 6. Sponge strips are fixed to both sides of the top of the scraper 16, which can improve the cleaning effect on the water droplets of the transparent partition 6. The linear reciprocating screw module 20 is a mechanical transmission device that converts rotary motion into linear motion. It is widely used in automated equipment, industrial machinery and precision instruments. It achieves high-precision and high-efficiency linear reciprocating motion through the cooperation of the screw and the slider. It is a well-known and mature structural component, so its detailed structural components will not be described in detail. If necessary, the third bolt 19 can be rotated counterclockwise to separate it from the threaded block 18, and the scraper 16 can be removed for cleaning or replacement for proper use next time.

[0027] Furthermore, a second pipeline valve 21 is fixedly connected to the lower surface of the channel plate 17.

[0028] In the specific implementation process, it is worth noting that the second pipeline valve 21 can drain the water inside the trough plate 17 after it is opened.

[0029] Working principle:

[0030] Preliminary preparations:

[0031] The user first connects to the external vacuum pump intake port through the top connector of the one-way valve 13 and the external connecting pipe to draw out the air from the environment around the industrial camera 5 inside the housing 2, so that the environment around the industrial camera 5 is in a relatively vacuum state. The relatively vacuum environment can play a certain role in heat insulation and can reduce the impact of high and low temperatures on the industrial camera 5.

[0032] Visualized operation of high and low temperature test chamber:

[0033] First, place the sample to be tested into the chamber 1, close the chamber 1, and start the machine to perform high and low temperature tests on the sample inside the chamber 1. During this process, the user will turn on the industrial camera 5 and the light strip 11. The light strip 11 will illuminate the sample inside the chamber 1, making it easier for the sample image to be captured by the industrial camera 5. The shell 2 has a transparent partition 6 with a cavity structure, which has a good thermal insulation effect and can prevent the negative impact of high and low temperatures on the industrial camera 5. It can realize recordable visualization of the sample inside the chamber and record the appearance changes of the sample under extreme temperatures (such as expansion, contraction, cracking, melting, discoloration, etc.). There is no need for workers to frequently open the chamber to check, and the temperature inside the chamber will not fluctuate, which is conducive to high-quality testing of the sample.

[0034] Cleaning of the transparent partition:

[0035] During the transition from a cold to a hot state inside the enclosure 1, when the moisture in the residual air inside the enclosure 1 initially liquefies with the cold transparent partition 6, the user activates the linear reciprocating screw module 20 to make the slot plate 17 and scraper 16 move laterally back and forth. The scraper 16 can scrape and clean the water droplets on the lower surface of the transparent partition 6, and the scraped water droplets will flow into the interior of the slot plate 17 for temporary storage, so that no water droplets will fall. This allows the enclosure to be opened without cleaning and maintaining the internal components of the shell 2 during temperature changes.

[0036] Subsequent maintenance work:

[0037] After the sample testing inside chamber 1 is completed, the user disconnects the power to chamber 1 and allows it to return to room temperature. Then, the user opens chamber 1, removes the tested sample, and places a suitable external container (such as a small water bottle) at the bottom of the second pipe valve 21. Water accumulated inside the opening / closing slot 17 of the second pipe valve 21 is drained into the container and carried out from inside chamber 1. If necessary, the third bolt 19 is rotated counterclockwise to separate it from the threaded block 18. The scraper 16 is then removed for cleaning or replacement to ensure proper use next time. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Visualized high and low temperature test chamber, including: The housing (1) is characterized in that: a viewing unit is provided at the top of the housing (1), the viewing unit includes: a shell (2), the bottom end of the shell (2) is connected to the interior of the housing (1), a sleeve plate (3) is fixedly sleeved on the outer wall of the shell (2), a plurality of first bolts (4) are inserted into the upper surface of the sleeve plate (3), the first bolts (4) penetrate the sleeve plate (3) and are threadedly connected to the housing (1), an industrial camera (5) is installed at the top of the interior of the shell (2), and below the industrial camera (5) A transparent partition (6) is provided, and a heat insulation layer (7) is provided inside the transparent partition (6). A base (8) is fixedly sleeved on the outside of the transparent partition (6). A soft pad (9) is fixedly sleeved on the outer wall of the base (8). The soft pad (9) abuts against the inner wall of the shell (2). A second bolt (10) is inserted into the surface of the base (8). The second bolt (10) passes through the base (8) and the soft pad (9) in sequence and is threaded to the shell (2). Light strips (11) are installed on both sides of the top inside the shell (2).

2. The visual high and low temperature test chamber according to claim 1, characterized in that: The shell (2) is composed of an outer shell (201), a sandwich layer (202), an inner shell (203) and a shell cover (204). The outer wall of the outer shell (201) is fixedly connected to the inner wall of the sleeve plate (3). The sandwich layer (202) is fixedly connected to the inner wall of the outer shell (201). The inner shell (203) is fixedly connected to the inner wall of the sandwich layer (202). The shell cover (204) is installed on the top of the outer shell (201).

3. The visual high and low temperature test chamber according to claim 2, characterized in that: The top of the cover (204) is provided with a protective unit, which includes: a first vertical tube (12) and a second vertical tube (14). The first vertical tube (12) is fixed to one side of the top of the cover (204), and a one-way valve (13) is fixed to the top of the first vertical tube (12). The second vertical tube (14) is fixed to the other side of the top of the cover (204), and a first pipeline valve (15) is fixed to the top of the second vertical tube (14).

4. The visual high and low temperature test chamber according to claim 1, characterized in that: An auxiliary unit is provided below the transparent partition (6). The auxiliary unit includes a scraper (16), the top of which is in contact with the transparent partition (6), and the bottom of which is pressed against a groove plate (17). A threaded block (18) is fixedly connected to the lower part of the scraper (16). A third bolt (19) is inserted into the lower surface of the groove plate (17). The third bolt (19) passes through the groove plate (17) and is threadedly connected to the threaded block (18). A linear reciprocating screw module (20) is connected to the rear side of the groove plate (17). The linear reciprocating screw module (20) is installed on the housing (2).

5. The visual high and low temperature test chamber according to claim 4, characterized in that: A second pipeline valve (21) is fixedly connected to the lower surface of the groove plate (17).

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