CN115656661A - Method for testing light-heat aging resistance of automotive central control display screen - Google Patents
Method for testing light-heat aging resistance of automotive central control display screen Download PDFInfo
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Abstract
The invention discloses a method for testing the light-heat aging resistance of an automobile central control display screen, which is characterized in that a tested automobile central control display screen sample is fixedly arranged in an automobile simulation cabin, the automobile simulation cabin is arranged in a comprehensive environment test cabin, and the typical service state of the automobile central control display screen in the actual use process is simulated by controlling the temperature, the humidity and the illumination intensity in the environment test cabin and controlling the air exchange state of the automobile simulation cabin and the comprehensive environment test cabin, so that the aim of checking the light-heat aging resistance of the automobile central control display screen is fulfilled.
Description
Technical Field
The invention relates to a method for testing light-heat aging resistance of an automotive central control display screen.
Background
Electronic components closely related to the automatic driving technology of the new energy automobile run reliably for a long time, and therefore, hot spots are very concerned in the old industry, and natural and artificial accelerated aging test devices and test methods are continuously optimized by various automobile manufacturers and research and development institutions at home and abroad and are used for more accurately evaluating the reliability and service life of the devices.
In the human-computer interaction and multimedia entertainment technology of automobiles, the central control display screen of the automobile plays a very important role, the installation position of the central control display screen is positioned in front of a cockpit, and the temperature of the upper surface of the central control display screen can reach about 110 ℃ due to the irradiation of solar rays and the temperature and humidity effect of glass in the actual outdoor use or parking process. Under the action of the harsh environment, various aging and failure phenomena such as surface deformation, color change, degumming and cracking of the display screen, abnormal screen display and the like of the display screen can be generated in part of automobile central control display screen products, so that the use is influenced and even potential safety hazards are generated. Therefore, an accelerated test method suitable for the automotive central control display screen needs to be developed to realize the assessment of the light and heat aging resistance of the automotive central control display screen.
At present, the traditional test method for the automobile central control display screen comprises an outdoor test and a laboratory manual accelerated test. The outdoor test mainly comprises an outdoor natural aging test and an IPDP box test of the whole vehicle. The whole automobile is placed outdoors to receive the effect of natural environment in the whole automobile outdoor natural aging test, the mode is most similar to the condition encountered in actual use, but the acceleration effect is lower. The IPDP box test uses a glass box with a temperature control function, a sample is placed in the box for development, a certain acceleration effect is generated by utilizing the temperature rise effect of the glass box, and the acceleration effect is 2-5 times that of an outdoor natural aging test of the whole automobile.
The aging tests such as ultraviolet, xenon, metal halogen lamps and carbon arc lamps are generally selected for laboratory manual accelerated tests of automobile parts, but at present, the automobile central control display screen is directly placed under an artificial light source to carry out the light aging test, and due to the limitations of the light source, the temperature of a test box body, the installation mode of a sample opening and the like, the aging failure phenomena such as degumming, cracking and the like of the automobile central control display screen cannot be reproduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for testing the photo-thermal aging resistance of an automobile central control display screen, which can save the test time and achieve the aim of carrying out rapid evaluation on the aging resistance of the central control display screen.
A method for testing the photo-thermal aging resistance of an automotive central control display screen comprises the following steps or procedures:
(a) Fixedly installing an automobile central control display screen sample to be tested in an automobile simulation cabin, wherein the installation angle is the same as that in actual use;
(b) Placing the automobile simulation cabin with the mounted sample in a comprehensive environment test cabin, and keeping a glass box cover of the automobile simulation cabin open to ensure that air in the automobile simulation cabin can be exchanged with the comprehensive environment test cabin;
(c) Closing the cabin door of the comprehensive environment test cabin, starting an environment test program, and entering a room temperature and high humidity preparation stage, wherein the air temperature in the comprehensive environment test cabin is set to be 20-25 ℃, and the air humidity is set to be 50-85%;
(d) When the temperature and the humidity of the comprehensive environment test cabin enter a stable state and the temperature and the humidity states of the automobile simulation cabin and the comprehensive environment test cabin are the same, closing a glass box cover of the automobile simulation cabin to enable the automobile simulation cabin to be in a closed state and have no air exchange with the outside;
(e) Setting the irradiance reaching the glass box cover of the automobile simulation cabin to be 1000W/m through the comprehensive environment test cabin 2 ～1200W/m 2 And stably keeping for 4-12 hours, wherein the process is a high-temperature light aging process of the screen of the central control display screen of the automobile;
(f) Closing the irradiated light source to gradually reduce the temperature in the comprehensive environment test cabin to 0-minus 20 ℃, and stably maintaining for 4-12 hours, wherein the process is a low-temperature high-humidity aging process of the screen of the automobile central control display screen;
(g) Repeating the procedure (e) and the procedure (f) a total of N times, wherein N is 3 to 10, and the time for switching to the steady state between the procedure (e) and the procedure (f) is required to be not more than 1 hour;
(h) After the environmental aging process from the procedure (e) to the procedure (g) is finished, the test procedure of the comprehensive environmental test chamber enters a normal temperature stage;
(i) After the temperature in the automobile simulated cockpit is reduced to 20-25 ℃ and kept for at least half an hour, ending the environmental test program, opening a glass box cover of the automobile simulated cockpit, and taking out an automobile central control display screen sample;
(j) And inspecting and testing the automobile central control display screen sample, and inspecting whether the automobile central control display screen shows the conditions of screen degumming, frame deformation, poor screen display after the power supply is switched on and the like.
The automobile simulation cockpit provided with the automobile central control display screen is placed in the comprehensive environment test cabin, and the temperature, the humidity and the illumination intensity in the comprehensive environment test cabin are controlled indirectly to control the temperature, the humidity and the illumination condition in the automobile simulation cockpit, so that the typical environment effect of the automobile central control display screen in the actual use process is simulated, and the purpose of checking the light-heat aging resistance of the automobile central control display screen is achieved.
The invention also has the following preferred design:
the comprehensive environmental test chamber is a walk-in environmental test chamber for controlling irradiation, temperature and humidity.
The light source used for irradiation of the comprehensive environment test chamber adopts a metal halogen lamp light source.
The automobile simulation cockpit is of a rectangular box body structure, the upper surface of the automobile simulation cockpit is the glass box cover which is made of the same material and has the same structure as the front windshield of an automobile, and the automobile simulation cockpit is used for more accurately simulating the actual use state of a central control display screen of the automobile.
Preferably, five surfaces except the upper surface of the automobile simulated cockpit are made of metal materials capable of exchanging heat with the outside.
The automobile simulation cockpit is internally provided with a plurality of groups of vertical grooves, a plurality of height-adjustable sample frames are arranged through the vertical grooves, the sample frames are used for installing automobile central control display screen samples, and the illumination intensity reaching the surface of the samples in an illumination state in the test process can be conveniently adjusted by adjusting the heights of the automobile central control display screen samples.
A plurality of automobile central control display screen samples are placed in the automobile simulation cockpit, the minimum distance between each sample is larger than 15CM, and the minimum distance between each sample and 4 side faces and a glass box cover of the automobile simulation cockpit is larger than 15CM.
The temperature sensor and the humidity sensor are arranged in the automobile simulation cabin and used for monitoring the temperature and the humidity in the automobile simulation cabin and the surface temperature of an automobile central control display screen sample.
When the stable maintaining state is achieved in the program (e), the temperature of each part of the upper edge of the automobile central control display screen is maintained at 100-115 ℃, and the program is used for simulating the highest bearing temperature of the automobile central control display screen in the actual application process of different application areas.
The invention has the beneficial effects that:
the method for testing the photo-thermal aging resistance of the automotive central control display screen can save test time, achieve the aim of carrying out rapid evaluation on the aging resistance of the central control display screen, and is beneficial to shortening the time of product development test verification for automobile parts and material enterprises, thereby being beneficial to shortening the design and research and development period of automotive products, improving the product quality and saving the cost. If the test of the whole vehicle natural exposure to the sun needs about 8-12 months and the fixed IPDP test needs about 3-5 months compared with the same type of vehicle central control display screen in the south of the Hainan China humid and hot natural test station, the test method for the light and heat aging resistance only needs several days, and the test time is greatly saved.
Drawings
FIG. 1 is a block diagram of a simulated cockpit of a vehicle utilized in an embodiment of the present invention;
fig. 2 is a graph of measured data of the temperature and humidity during the test in example 1 of the present invention, which shows first cycle data from the high temperature light state.
Fig. 3 is a graph of measured data of the temperature and humidity during the test in example 2 of the present invention, which shows first cycle data from the high temperature light state.
Fig. 4 is a graph of measured data of the temperature and humidity during the test in the embodiment 3 of the present invention, which shows the first cycle data from the high temperature illumination state.
Description of reference numerals:
1. an automobile simulation cabin; 1-1, a glass box cover; 1-2, vertical grooves; 1-3, a sample rack; 2. automobile central control display screen.
Detailed Description
The technical solutions of the present invention are described in detail below with reference to the accompanying drawings and examples, so that those skilled in the art can better understand and implement the technical solutions of the present invention.
Example 1:
the test method is used for testing and examining the weather-resistant photo-thermal aging performance of the central control screen of the automobile used in Hainan province in tropical regions of China. Hainan province is a typical humid and hot environment climate area in China, and has the characteristics of annual high temperature and high humidity, relatively even solar irradiation distribution throughout the year, and no obvious difference in winter and summer. When the automobile is used outdoors, the maximum temperature of the screen can reach about 105-110 ℃.
A method for testing the photo-thermal aging resistance of an automotive central control display screen comprises the following steps or procedures:
referring to fig. 1 and 2:
(a) Fixedly mounting a sample of an automobile central control display screen 2 to be tested in an automobile simulation cabin 1, wherein the mounting angle is the same as that in actual use;
(b) Placing the automobile simulation cabin 1 with the mounted sample in a comprehensive environment test cabin, and keeping a glass box cover 1-1 of the automobile simulation cabin 1 open to ensure that air in the automobile simulation cabin 1 can be exchanged with the comprehensive environment test cabin;
(c) Closing the cabin door of the comprehensive environment test cabin, starting an environment test program, and entering a room temperature and high humidity preparation stage, wherein in the embodiment, the air temperature in the comprehensive environment test cabin is set to be 25 ℃ and the air humidity is set to be 85%;
(d) When the temperature and the humidity of the comprehensive environment test cabin enter a stable state and the temperature and the humidity states of the automobile simulation cabin 1 and the comprehensive environment test cabin are the same, closing a glass box cover 1-1 of the automobile simulation cabin 1 to enable the automobile simulation cabin 1 to be in a closed state and have no air exchange with the outside, wherein in the embodiment, the temperature and the humidity of the comprehensive environment test cabin enter the stable state after 5 hours;
(e) Setting the irradiance of a glass box cover 1-1 reaching the automobile simulation cabin 1 to be 1080W/m through the comprehensive environment test cabin 2 Entering a high-temperature illumination state, and when the interior of the automobile simulation cabin 1 reaches a stable state, actually measuring the temperature of each edge on the automobile central control display screen to be 110 ℃, and stably keeping for 12 hours, wherein the process is a high-temperature light aging process of the automobile central control display screen;
(f) Turning off the irradiated light source, setting the temperature in the comprehensive environment test cabin to be 0 ℃ when the environment test program enters a cooling and humidifying stage, gradually reducing the temperature in the comprehensive environment test cabin to be 0 ℃ and stably keeping for 12 hours, wherein the process is a low-temperature high-humidity aging process of a screen of a central control display screen of an automobile;
(g) Repeating the procedure (e) and the procedure (f) 3 times in total, and requiring a time to transition to a steady state between the procedure (e) and the procedure (f) of not more than 1 hour;
(h) After the environmental aging process from the procedure (e) to the procedure (g) is finished, setting the temperature target value of the comprehensive environmental test chamber to be 25 ℃, and entering the test procedure into a normal temperature stage;
(i) After the temperature in the automobile simulation cabin is reduced to 25 ℃ and kept for 1 hour, ending the environmental test program, opening a glass box cover of the automobile simulation cabin, and taking out an automobile central control display screen sample;
(j) And (4) inspecting and testing the automobile central control display screen sample, and inspecting whether the automobile central control display screen shows the conditions of screen degumming, frame deformation, poor screen display after the power is switched on and the like.
Example 2:
the test method is used for testing and examining the weather-resistant photo-thermal aging performance of the central control screen of the automobile used in the subhumid hot region (such as Wuhan city) in China. When the automobile is used outdoors, the maximum temperature of the screen can reach more than 100 ℃.
A method for testing the photo-thermal aging resistance of an automotive central control display screen comprises the following steps or procedures:
referring to fig. 1 and 3:
(a) Fixedly installing a sample of an automobile central control display screen 2 to be tested in an automobile simulation cabin 1, wherein the installation angle is the same as that in actual use;
(b) Placing the automobile simulation cabin 1 with the mounted sample in a comprehensive environment test cabin, and keeping a glass box cover 1-1 of the automobile simulation cabin 1 open to ensure that air in the automobile simulation cabin 1 can be exchanged with the comprehensive environment test cabin;
(c) Closing the cabin door of the comprehensive environment test cabin, starting an environment test program, and entering a room temperature and high humidity preparation stage, wherein in the embodiment, the air temperature in the comprehensive environment test cabin is set to be 25 ℃, and the air humidity is set to be 70%;
(d) When the temperature and humidity of the comprehensive environment test cabin enter a stable state and the temperature and humidity states of the automobile simulation cabin 1 and the comprehensive environment test cabin are the same, closing a glass box cover 1-1 of the automobile simulation cabin 1 to enable the automobile simulation cabin 1 to be in a closed state and have no air exchange with the outside, wherein in the embodiment, the temperature and humidity of the comprehensive environment test cabin enter the stable state after 3 hours;
(e) The irradiance of a glass box cover 1-1 reaching the automobile simulation cabin 1 is set to be 1000W/m through the comprehensive environment test cabin 2 Entering a high-temperature illumination state, and when the interior of the automobile simulation cabin 1 reaches a stable state, actually measuring the temperature of each edge on the automobile central control display screen to be 100 ℃, and stably keeping for 4 hours, wherein the process is a high-temperature light aging process of the automobile central control display screen;
(f) Turning off the irradiated light source, setting the temperature in the comprehensive environment test chamber to-10 ℃ when the environment test program enters a cooling and humidifying stage, gradually reducing the temperature in the comprehensive environment test chamber to-10 ℃ and stably keeping the temperature for 4 hours, wherein the process is a low-temperature and high-humidity aging process of a screen of a central control display screen of an automobile;
(g) Repeating the procedure (e) and the procedure (f) 10 times in total, and requiring a time to transition to a steady state between the procedure (e) and the procedure (f) of not more than 1 hour;
(h) After the environmental aging process from the procedure (e) to the procedure (g) is finished, setting the temperature target value of the comprehensive environmental test chamber to be 25 ℃, and entering the test procedure into a normal temperature stage;
(i) After the temperature in the automobile simulation cabin is reduced to 25 ℃ and kept for 1 hour, ending the environmental test program, opening a glass box cover of the automobile simulation cabin, and taking out an automobile central control display screen sample;
(j) And inspecting and testing the automobile central control display screen sample, and inspecting whether the automobile central control display screen shows the conditions of screen degumming, frame deformation, poor screen display after the power supply is switched on and the like.
Example 3:
this example was used to test the weathering resistance, photo-thermal aging resistance of the automotive center screen used in the city of the us phoenix.
As an international typical dry and hot environment area, the American Phoenix city has the characteristics of high solar radiation, high summer temperature, and large daily and annual temperature difference. When the automobile is used outdoors, the maximum temperature of the screen can reach 115 ℃.
A method for testing the photo-thermal aging resistance of an automotive central control display screen comprises the following steps or procedures:
refer to fig. 1 and 4.
(a) Fixedly installing a sample of an automobile central control display screen 2 to be tested in an automobile simulation cabin 1, wherein the installation angle is the same as that in actual use;
(b) Placing the automobile simulation cabin 1 with the mounted sample in a comprehensive environment test cabin, and keeping a glass box cover 1-1 of the automobile simulation cabin 1 open to ensure that air in the automobile simulation cabin 1 can be exchanged with the comprehensive environment test cabin;
(c) Closing the cabin door of the comprehensive environment test cabin, starting an environment test program, and entering a room temperature and high humidity preparation stage, wherein in the embodiment, the air temperature in the comprehensive environment test cabin is set to be 20 ℃ and the air humidity is set to be 50%;
(d) When the temperature and humidity of the comprehensive environment test cabin enter a stable state and the temperature and humidity states of the automobile simulation cabin 1 and the comprehensive environment test cabin are the same, closing a glass box cover 1-1 of the automobile simulation cabin 1 to enable the automobile simulation cabin 1 to be in a closed state and have no air exchange with the outside, wherein in the embodiment, the temperature and humidity of the comprehensive environment test cabin enter the stable state after 4 hours;
(e) The irradiance of a glass box cover 1-1 reaching the automobile simulation cabin 1 is set to be 1200W/m through the comprehensive environment test cabin 2 Entering a high-temperature illumination state, and when the interior of the automobile simulation cabin 1 reaches a stable state, actually measuring the temperature of each edge on the automobile central control display screen to be 115 ℃, and stably keeping the temperature for 8 hours, wherein the process is a high-temperature light aging process of the automobile central control display screen;
(f) Turning off the irradiated light source, setting the temperature in the comprehensive environment test chamber to-20 ℃ when the environment test program enters a cooling and humidifying stage, gradually reducing the temperature in the comprehensive environment test chamber to-20 ℃ and stably keeping the temperature for 8 hours, wherein the process is a low-temperature and high-humidity aging process of a screen of a central control display screen of an automobile;
(g) Repeating the procedure (e) and the procedure (f) 6 times in total, and requiring a time to transition to a steady state between the procedure (e) and the procedure (f) of not more than 1 hour;
(h) After the environmental aging process from the procedure (e) to the procedure (g) is finished, setting the temperature target value of the comprehensive environmental test chamber to be 20 ℃, and entering the test procedure into a normal temperature stage;
(i) After the temperature in the automobile simulation cabin is reduced to 20 ℃ and kept for 1 hour, ending the environmental test program, opening a glass box cover of the automobile simulation cabin, and taking out an automobile central control display screen sample;
(j) And inspecting and testing the automobile central control display screen sample, and inspecting whether the automobile central control display screen shows the conditions of screen degumming, frame deformation, poor screen display after the power supply is switched on and the like.
The above three embodiments are preferred embodiments: the comprehensive environmental test chamber is a walk-in environmental test chamber for controlling irradiation, temperature and humidity.
The light source used for irradiation of the comprehensive environment test chamber adopts a metal halogen lamp light source.
The automobile simulation cabin 1 is of a rectangular box structure, and the upper surface of the automobile simulation cabin 1 is a glass box cover 1-1 which is made of the same material and structure as the front windshield of an automobile and is used for more accurately simulating the actual use state of the automobile central control display screen 2.
Five surfaces except the upper surface of the automobile simulation cockpit 1 are made of metal materials capable of exchanging heat with the outside, the glass box cover 1-1 can be opened in a rotating mode, so that a control display screen sample in an automobile can be conveniently mounted and dismounted, and a sealing structure is adopted between the glass box cover 1-1 and the main body of the automobile simulation cockpit 1, so that after the glass box cover 1-1 is closed, the automobile simulation cockpit is in a closed state and does not exchange gas with the outside.
A plurality of groups of vertical grooves 1-2 are arranged in an automobile simulation cabin 1, a plurality of height-adjustable sample frames 1-3 are installed through the vertical grooves 1-2, the sample frames 1-3 are used for installing samples of an automobile central control display screen 2, and the illumination intensity reaching the surface of the sample in the test process is conveniently adjusted by adjusting the sample height of the automobile central control display screen 2.
A plurality of samples of the automobile central control display screen 2 can be placed in the automobile simulation cockpit 1, the minimum distance between each sample is larger than 15CM, and the minimum distance between each sample and 4 side faces and a glass box cover of the automobile simulation cockpit is larger than 15CM.
A temperature sensor and a humidity sensor are arranged in the automobile simulation cabin 1 and used for monitoring the temperature and humidity inside the automobile simulation cabin and the surface temperature of an automobile central control display screen sample.
The above-mentioned embodiments are merely preferred embodiments of the present invention, but should not be construed as limiting the invention, and any variations and modifications based on the concept of the present invention should fall within the scope of the present invention, and the specific scope of the present invention is determined by the content of the claims.
Claims (9)
1. The method for testing the photo-thermal aging resistance of the central control display screen for the automobile is characterized by comprising the following steps or procedures:
(a) Fixedly installing an automobile central control display screen sample to be tested in an automobile simulation cabin, wherein the installation angle is the same as that in actual use;
(b) Placing the automobile simulation cabin with the mounted sample in a comprehensive environment test cabin, and keeping a glass box cover of the automobile simulation cabin open to ensure that air in the automobile simulation cabin can be exchanged with the comprehensive environment test cabin;
(c) Closing the cabin door of the comprehensive environment test cabin, starting an environment test program, and entering a room temperature and high humidity preparation stage, wherein the air temperature in the comprehensive environment test cabin is set to be 20-25 ℃, and the air humidity is set to be 50-85%;
(d) When the temperature and the humidity of the comprehensive environment test cabin enter a stable state and the temperature and the humidity of the automobile simulation cabin are the same as those of the comprehensive environment test cabin, closing a glass box cover of the automobile simulation cabin to enable the automobile simulation cabin to be in a closed state and have no air exchange with the outside;
(e) Setting the irradiance reaching the glass box cover of the automobile simulation cockpit to be 1000W/m through the comprehensive environmental test cabin 2 ～1200W/m 2 And stably keeping for 4-12 hours, wherein the process is a high-temperature light aging process of a screen of a central control display screen of the automobile;
(f) Closing the irradiated light source to gradually reduce the temperature in the comprehensive environment test cabin to 0-20 ℃ and stably keeping the temperature for 4-12 hours, wherein the process is a low-temperature high-humidity aging process of a screen of a central control display screen of the automobile;
(g) Repeating the procedure (e) and the procedure (f) a total of N times, wherein N is 3 to 10, and the time for switching to the steady state between the procedure (e) and the procedure (f) is required to be not more than 1 hour;
(h) After the environmental aging process from the procedure (e) to the procedure (g) is finished, the test procedure of the comprehensive environmental test chamber enters a normal temperature stage;
(i) After the temperature in the automobile simulated cockpit is reduced to 20-25 ℃ and kept for at least half an hour, ending the environmental test program, opening a glass box cover of the automobile simulated cockpit, and taking out an automobile central control display screen sample;
(j) And inspecting and testing the automobile central control display screen sample, and inspecting whether the automobile central control display screen shows the conditions of screen degumming, frame deformation, poor screen display after the power supply is switched on and the like.
2. The method for testing the photo-thermal aging resistance of the central control display screen for the automobile according to claim 1, characterized in that: the comprehensive environmental test chamber is a walk-in environmental test chamber for controlling irradiation, temperature and humidity.
3. The method for testing the photo-thermal aging resistance of the central control display screen for the automobile as claimed in claim 2, characterized in that: the light source used for irradiation of the comprehensive environment test chamber adopts a metal halogen lamp light source.
4. The method for testing the photo-thermal aging resistance of the central control display screen for the automobile according to any one of claims 1 to 3, characterized in that: the automobile simulation cabin is of a rectangular box structure, and the upper surface of the automobile simulation cabin is a glass box cover which is made of the same material and structure as the front windshield of the automobile.
5. The method for testing the photo-thermal aging resistance of the central control display screen for the automobile as claimed in claim 4, wherein: five surfaces except the upper surface of the automobile simulation cabin are all made of metal materials capable of exchanging heat with the outside.
6. The method for testing the photo-thermal aging resistance of the central control display screen for the automobile as claimed in claim 5, wherein: a plurality of groups of vertical grooves are arranged in the automobile simulation cabin, and a plurality of height-adjustable sample racks are installed through the vertical grooves.
7. The method for testing the photo-thermal aging resistance of the central control display screen for the automobile as claimed in claim 6, wherein: a plurality of automobile central control display screen samples are placed in the automobile simulation cockpit, the minimum distance between each sample is larger than 15CM, and the minimum distance between each sample and 4 side faces of the automobile simulation cockpit and the minimum distance between each sample and a glass box cover are larger than 15CM.
8. The method for testing the photo-thermal aging resistance of the central control display screen for the automobile as claimed in claim 7, characterized in that: a temperature sensor and a humidity sensor are arranged in the automobile simulation cabin and used for monitoring the temperature and humidity inside the automobile simulation cabin and the surface temperature of an automobile central control display screen sample.
9. The method for testing the photo-thermal aging resistance of the central control display screen for the automobile as claimed in claim 8, wherein: when the stable maintaining state is reached in the program (e), the temperature of the upper edge of the automobile central control display screen is maintained at 100-115 ℃.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116437074A (en) * | 2023-06-14 | 2023-07-14 | 深圳市康意数码科技有限公司 | High-temperature aging testing device for television |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116437074A (en) * | 2023-06-14 | 2023-07-14 | 深圳市康意数码科技有限公司 | High-temperature aging testing device for television |
| CN116437074B (en) * | 2023-06-14 | 2023-08-18 | 深圳市康意数码科技有限公司 | High-temperature aging testing device for television |
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