Programmable thermal shock test box

Abstract

The utility model relates to the field of thermal shock tests, and discloses a programmable thermal shock test box which comprises a high and low temperature test box, the hot oil tank is arranged in the high and low temperature test box and is used for filling and heating a perfluorocarbon compound; and the cold oil tank is mounted in the high and low temperature test box and arranged on one side of the hot oil tank, and the cold oil tank is used for filling and cooling a perfluorocarbon compound. According to the utility model, through the accurate cooperation of the transmission frame, the lifting control box and the electric slide rail, the rapid and stable transfer of the device between the cold oil tank and the hot oil tank is realized, the test efficiency is improved, the safety risk in the test process is reduced, and the automation degree of the test is improved, so that the test process is more stable and reliable; the closed door plate design is adopted, opening and closing of the feeding port are effectively controlled, the sealing performance in the test process is guaranteed, and leakage of cold oil or hot oil in the transfer process is avoided.

Description

Technical Field

[0001] The utility model relates to the field of thermal shock testing, in particular to a programmable thermal shock testing box. Background Art

[0002] Thermal shock testing of electrical appliances is a crucial environmental adaptability test. It examines the normal functioning and stable performance of electrical products in simulated environments of rapid temperature fluctuations. The goal is to determine the device's ability to withstand sudden exposure to extreme temperature fluctuations and the effects of alternating exposure to such extreme temperatures. As part of routine testing, thermal shock testing is conducted in accordance with national or industry standards, such as factory testing, on-site acceptance testing, and periodic testing during operation. It can also be a mandatory, unexceptionally mandated test throughout the entire product development, manufacturing, and delivery process. It also serves as a preventative test.

[0003] The current test method is to manually place the device in a container with an oil inlet, put the container into a -55°C perfluorocarbon inside a high and low temperature box, and after reaching the immersion time required by the specification, transfer it to the 125°C perfluorocarbon in an external heating device. This process needs to be controlled within 10 seconds, and the transition from cold oil to hot oil is a cycle. Each test is performed for a total of 15 cycles. The existing test method cannot guarantee that the requirement of the specification that the hot and cold conversion must be within 10 seconds is met. During the transfer process, not only will cold oil or hot oil leak out, causing harm to the test personnel, but it will also cause heat loss in the low temperature zone and condensation of water vapor inside the box. In the long run, the low temperature zone cannot reach the temperature required for the test, and it is necessary to wait until the test temperature is reached before timing is started, which extends the total experimental time. In addition, at high temperatures, the perfluorocarbon used in the experiment will emit a pungent odor, which will cause certain harm to the human body over a long period of time. Utility Model Content

[0004] In order to solve the above-mentioned problems, the present invention is implemented through the following technical solutions:

[0005] A programmable thermal shock test chamber includes: a high and low temperature test chamber; a hot oil tank installed in the high and low temperature test chamber and used for filling and heating perfluorocarbon compounds; a cold oil tank installed in the high and low temperature test chamber and arranged on one side of the hot oil tank, and the cold oil tank is used for filling and cooling perfluorocarbon compounds; a transmission frame installed on the outside of the high and low temperature test chamber; a lifting control box arranged on the transmission frame and configured to move horizontally along the transmission frame; a device box connected to the lifting control box and used for placing test devices, and the lifting control box is used to drive the device box to rise and fall.

[0006] The transmission frame includes: a moving seat connected to the transmission frame and configured to move on the transmission frame; a control arm, one end of which is mounted on the moving seat and the other end extends into the high and low temperature test chamber, and the lifting control box is connected to the control arm.

[0007] The transmission frame also includes: a first electric slide rail, which is installed on the transmission frame, the moving seat is connected to the first electric slide rail, and the first electric slide rail is used to provide moving power for the moving seat; a second electric slide rail, which is installed on the control arm, the lifting control box is installed on the second electric slide rail, and the second electric slide rail is used to provide moving power for the lifting control box.

[0008] The lifting control box includes: a winding wheel installed in the lifting control box; a power source installed on one side of the lifting control box, a power shaft of the power source connected to the winding wheel, and used to provide power for the winding wheel; a lifting rope, one end of which is connected to the winding wheel and the other end of which is connected to the lifting control box.

[0009] It also includes: a door panel installed on the control arm, a feed port is opened on one side wall of the high and low temperature test box, the door panel is arranged in the feed port, and the door panel is arranged to move with the movable seat and the control arm to control the opening and closing of the feed port.

[0010] An observation window is provided on one side of the high and low temperature test box for observing the interior of the high and low temperature test box.

[0011] The high and low temperature test box includes: an operating touch screen installed on one side of the high and low temperature test box for program control.

[0012] The utility model provides a programmable thermal shock test chamber. Compared with the existing technology, it has the following features:

[0013] Beneficial effects:

[0014] 1. Through the precise coordination of the transmission frame, lifting control box and electric slide rail, the components can be quickly and smoothly transferred between the cold oil tank and the hot oil tank, ensuring that the hot and cold conversion time is within 10 seconds, meeting the regulatory requirements, improving test efficiency, reducing safety risks during the test process, and at the same time improving the degree of test automation, making the test process more stable and reliable.

[0015] 2. The closed door panel design effectively controls the opening and closing of the feed port, which not only ensures the sealing during the test, but also avoids the leakage of cold oil or hot oil during the transfer process, protects the safety of test personnel and the environment, reduces the leakage of perfluorocarbon compounds, and also reduces the emission of pungent odors through an effective exhaust and filtration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model.

[0017] Figure 2 This is a schematic diagram of the high and low temperature test chamber proposed by the present invention in the open state.

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the high and low temperature test chamber proposed in this utility model.

[0019] Figure 4 This is a structural schematic diagram of the transmission frame, lifting control box and device material box proposed in the utility model.

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the lifting control box proposed in the utility model.

[0021] The reference numerals in the figures are:

[0022] 1. High and low temperature test chamber; 101. Feeding port; 102. Observation window; 103. Operation touch screen;

[0023] 2. Hot oil tank;

[0024] 3. Cold oil tank;

[0025] 4. Transmission frame; 401. First electric slide rail; 402. Moving seat; 403. Control arm; 404. Door panel; 405. Second electric slide rail;

[0026] 5. Lifting control box; 501. Winding reel; 502. Power source; 503. Lifting rope;

[0027] 6. Device box. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of protection of the present invention.

[0029] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0030] Reference Figure 1-Figure 5, the programmable thermal shock test chamber includes: a high and low temperature test chamber 1, which provides a controllable high and low temperature environment, can simulate various extreme climatic conditions, conduct comprehensive performance tests on test devices, and ensure their stability and reliability under different temperature conditions; a hot oil tank 2, installed in the high and low temperature test chamber 1, is used to fill and heat perfluorocarbon compounds. By heating perfluorocarbon compounds, a fast and uniform high-temperature environment is provided for the test device, which helps to evaluate the heat resistance and performance changes of the device at high temperatures; a cold oil tank 3, installed in the high and low temperature test chamber 1, is set on one side of the hot oil tank 2, and the cold oil tank 3 is used to fill and cool the whole Fluorocarbon compounds cooperate with the hot oil tank 2 to achieve rapid cooling, provide a low-temperature environment for the test device, and test its functionality and durability under low-temperature conditions; the transmission frame 4 is installed on the outside of the high and low temperature test chamber 1; the lifting control box 5 is arranged on the transmission frame 4 and is configured to move in the horizontal direction of the transmission frame 4. The transmission frame 4 serves as a support and mobile platform for the lifting control box 5 and the device material box 6 to achieve precise position adjustment of the test device in the high and low temperature test chamber 1, which is convenient for operation and observation; the device material box 6 is connected to the lifting control box 5 and is used to place the test device. The lifting control box 5 is used to drive the device material box 6 to rise and fall.

[0031] The transmission frame 4 includes: a moving seat 402, which is connected to the transmission frame 4 and is configured to move on the transmission frame 4; a control arm 403, one end of which is mounted on the moving seat 402 and the other end extends into the high and low temperature test chamber 1, and the lifting control box 5 is connected to the control arm 403; a first electric slide 401, which is mounted on the transmission frame 4, and the moving seat 402 is connected to the first electric slide 401, and the first electric slide 401 is used to provide moving power for the moving seat 402; a second electric slide 405 is mounted on the control arm 403, and the lifting control box 5 is mounted on On the second electric slide rail 405, the second electric slide rail 405 is used to provide moving power for the lifting control box 5. The moving seat 402 and the control arm 403 enable the lifting control box 5 and the device material box 6 to move freely in the horizontal direction, which increases the flexibility and convenience of the test and facilitates the observation and operation of the test device from different angles. The first electric slide rail 401 and the second electric slide rail 405 provide stable power support for the moving seat 402 and the lifting control box 5 respectively, ensuring the smoothness and accuracy of the moving process and improving the degree of automation of the test.

[0032] The lifting control box 5 includes: a winding wheel 501, which is installed in the lifting control box 5; a power source 502, which is installed on one side of the lifting control box 5, and the power shaft of the power source 502 is connected to the winding wheel 501, which is used to provide power for the winding wheel 501; a suspension rope 503, one end of which is connected to the winding wheel 501, and the other end is connected to the lifting control box 5. The winding wheel 501 is driven to rotate by the power source 502, and the suspension rope 503 is used to realize the smooth lifting and lowering of the device material box 6. It is not only easy to operate, but also can accurately control the lifting height to meet different test requirements.

[0033] The door panel 404 is installed on the control arm 403. A feed port 101 is provided on one side wall of the high and low temperature test chamber 1. The door panel 404 is arranged in the feed port 101. The door panel 404 is arranged to move with the movable seat 402 and the control arm 403 to control the opening and closing of the feed port 101. It moves with the movable seat 402 and the control arm 403 to effectively control the opening and closing of the feed port 101, thereby ensuring the sealing during the test and facilitating the rapid placement and removal of test devices, thereby improving work efficiency.

[0034] An observation window 102 is provided on one side of the high and low temperature test chamber 1 for observing the interior of the high and low temperature test chamber 1, allowing the operator to visually observe the situation inside the high and low temperature test chamber 1 without affecting the test conditions, thereby facilitating timely adjustment of test parameters and monitoring of the test progress.

[0035] The high and low temperature test chamber 1 includes: an operating touch screen 103, which is installed on one side of the high and low temperature test chamber 1 and is used for program control. It provides an intuitive and easy-to-use interface, making it convenient for operators to program and set parameters of the high and low temperature test chamber 1, thereby improving the accuracy and operability of the test and simplifying the operation process.

[0036] During use, the operator sets the required test temperature range, number of thermal shock cycles, duration of each thermal shock and other parameters through the operating touch screen 103 of the high and low temperature test chamber 1, places the device to be tested in the device magazine 6, and ensures that the device magazine 6 is correctly connected to the lifting control box 5. The first electric slide 401 drives the moving seat 402 and the control arm 403 to move, and the control arm 403 drives the device magazine 6 and the door panel 404 to move. The door panel 404 closes the feed port 101 of the high and low temperature test chamber 1 to ensure the sealing during the test. The test program is started, and the temperature of the cold oil tank 3 and the hot oil tank 2 is adjusted according to the preset parameters. The device magazine 6 is moved above the hot oil tank 2, the power source 502 in the lifting control box 5 is started, driving the winding wheel 501 to rotate, and the device magazine 6 is steadily lowered into the hot oil tank 2 through the hanging rope 503, so that the test device is exposed to a high temperature environment. After the device box 6 is lifted, the second electric slide rail 405 drives the lifting control box 5 to move above the cold oil tank 3, and the lifting rope 503 lowers the device box 6 into the cold oil tank 3 again. According to the set number and duration of thermal shock cycles, the device box 6 is alternately lifted and lowered between the hot oil tank 2 and the cold oil tank 3 to achieve rapid high and low temperature shocks. During each thermal shock process, the operator can observe the status of the test device in real time through the observation window 102. After completing all the set thermal shock cycles, the lifting control box 5 lifts the device box 6 to a safe position, away from the hot oil tank 2 and the cold oil tank 3. The operator opens the feed port 101, takes out the device box 6, and inspects and evaluates the test device. During the test, the high and low temperature test chamber 1 can automatically record key data such as temperature changes and the number of thermal shocks. The operator can analyze and evaluate the performance of the test device based on the recorded data and write a test report.

[0037] In summary, compared with the existing technology, it has the following beneficial effects:

[0038] Through the precise coordination of the transmission frame 4, the lifting control box 5 and the electric slide rail, the components are quickly and smoothly transferred between the cold oil tank 3 and the hot oil tank 2, ensuring that the hot and cold conversion time is within 10 seconds, meeting the regulatory requirements, improving the test efficiency, reducing the safety risks during the test, and at the same time improving the degree of automation of the test, making the test process more stable and reliable.

[0039] The closed door panel 404 design effectively controls the opening and closing of the feed port 101, ensuring the sealing during the test and avoiding the leakage of cold oil or hot oil during the transfer process, protecting the safety of the test personnel and the environment, reducing the leakage of perfluorocarbon compounds, and reducing the emission of pungent odors through an effective exhaust and filtration system.

[0040] Thus, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are within the foregoing disclosure, and it should be understood that in some cases, some features of the present invention will be employed without the corresponding use of other features without departing from the scope and spirit of the proposed invention. Thus, many modifications may be made to adapt particular circumstances or materials to the true scope and spirit of the present invention. The present invention is not intended to be limited to the specific terminology used in the claims below and / or to the specific embodiments disclosed as the best mode contemplated for carrying out the invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined solely by the appended claims.

Claims

1. Programmable thermal shock test chamber, characterized by: include: High and low temperature test chamber (1); A hot oil tank (2) is installed in the high and low temperature test box (1) and is used for filling and heating perfluorocarbon compounds; A cold oil tank (3) is installed in the high and low temperature test box (1) and is arranged on one side of the hot oil tank (2). The cold oil tank (3) is used to load and cool perfluorocarbon compounds; A transmission frame (4) is installed outside the high and low temperature test box (1); A lifting control box (5) is arranged on the transmission frame (4) and is arranged to move in the horizontal direction of the transmission frame (4); The device material box (6) is connected to the lifting control box (5) and is used for placing test devices. The lifting control box (5) is used to drive the device material box (6) to rise and fall.

2. The programmable thermal shock test chamber according to claim 1, characterized in that: The transmission frame (4) comprises: A movable seat (402) is connected to the transmission frame (4) and is configured to move on the transmission frame (4); A control arm (403) has one end mounted on the movable seat (402) and the other end extending into the high and low temperature test chamber (1); the lifting control box (5) is connected to the control arm (403).

3. The programmable thermal shock test chamber according to claim 2, characterized in that: The transmission frame (4) further comprises: A first electric slide rail (401) is mounted on the transmission frame (4), the movable seat (402) is connected to the first electric slide rail (401), and the first electric slide rail (401) is used to provide moving power for the movable seat (402); The second electric slide rail (405) is mounted on the control arm (403), and the lifting control box (5) is mounted on the second electric slide rail (405). The second electric slide rail (405) is used to provide moving power for the lifting control box (5).

4. The programmable thermal shock test chamber according to claim 1, characterized in that: The lifting control box (5) comprises: A winding wheel (501) is installed in the lifting control box (5); A power source (502) is installed on one side of the lifting control box (5), and a power shaft of the power source (502) is connected to the winding wheel (501) to provide power for the winding wheel (501); A suspension rope (503) has one end connected to the winding wheel (501) and the other end connected to the lifting control box (5).

5. The programmable thermal shock test chamber according to claim 2, characterized in that: Also includes: A door panel (404) is mounted on the control arm (403); a feed port (101) is provided on one side wall of the high and low temperature test chamber (1); the door panel (404) is arranged in the feed port (101); and the door panel (404) is arranged to move following the movable seat (402) and the control arm (403) to control the opening and closing of the feed port (101).

6. The programmable thermal shock test chamber according to claim 1, characterized in that: An observation window (102) is provided on one side of the high and low temperature test box (1) for observing the interior of the high and low temperature test box (1).

7. The programmable thermal shock test chamber according to claim 1, characterized in that: The high and low temperature test box (1) comprises: An operating touch screen (103) is installed on one side of the high and low temperature test box (1) and is used for program control.

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