Detection device for detecting anti-fog effect of lampshade of car lamp
By using a copper tube heating and atomization device in the vehicle headlight cover anti-fog effect testing device, combined with temperature detection and silicone plate clamping, the problem of low temperature control efficiency in the existing technology is solved, achieving fast and accurate testing results and safe headlight cover clamping.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUCHENG DIRUI AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-21
AI Technical Summary
Existing vehicle headlight cover anti-fog effect testing devices suffer from low efficiency in precise temperature control, especially in heating and cooling, which takes a long time and affects testing efficiency.
Using copper pipes as the heating medium, combined with a temperature detector and a heating device, water is pumped into the copper pipes and precisely heated by the heating device. The water is then atomized and sprayed out for detection using an atomizing device. A silicone plate is used to hold the lamp cover and seal it with a sealing layer, achieving rapid temperature control and clamping safety.
It enables rapid and accurate testing of the anti-fog effect of vehicle headlight covers, improves the convenience and safety of the testing device, saves resources, and keeps the equipment clean.
Smart Images

Figure CN224152463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lamp cover anti-fog effect testing technology, specifically a testing device for testing the anti-fog effect of vehicle lamp covers. Background Technology
[0002] Currently, many headlights and fog lights in the automotive industry have anti-fog coatings sprayed on the inner surface of the lens to prevent fogging caused by rain.
[0003] The existing Chinese utility model patent with publication number CN207457169U discloses a device for testing the anti-fogging effect of a vehicle headlight cover. It includes a container for holding liquid, a heating device for heating the liquid, and a temperature sensor for detecting the liquid temperature. A temperature control device is installed on the container and connected to the heating device. The temperature sensor transmits a signal to the temperature control device. A steam vent is provided on the container, and a vehicle headlight cover is placed above the vent with its inner surface facing downwards. This utility model can test the effectiveness of anti-fogging coatings on vehicle headlight covers. Specifically, it can test whether different anti-fogging coatings or different spraying processes affect the effectiveness of the anti-fogging coating, and it can also detect the fogging effect and fogging time of the vehicle headlight cover under steam at different temperatures.
[0004] In the aforementioned device for testing the anti-fogging performance of vehicle headlight covers, although the problem of not being able to accurately measure the anti-fogging effect has been solved, the heating method used by this device is to heat the water in the entire chamber through a heating element. The process from the activation of the heating element to the water heating is time-consuming. In addition, when the experiment requires the use of low-temperature water, the device is not convenient to quickly lower the water temperature in the chamber to the required specific temperature range, and a cooling time is required. The long heating time, combined with the cooling time, directly affects the efficiency of the device and the testing time. Therefore, this device has certain limitations in accurately controlling the atomization temperature. Utility Model Content
[0005] The purpose of this invention is to overcome the problem of inconvenient precise temperature control in the existing technology and to provide a testing device for testing the anti-fog effect of vehicle headlight covers.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A testing device for detecting the anti-fogging effect of vehicle headlight covers, comprising:
[0008] The enclosure includes a water tank fixedly installed on one side of its interior. The water tank has an inlet at its top and a filling port fixedly installed on the top of the same side. A sealing cap is rotatably connected to the top of the filling port. A level gauge is fixedly installed in the middle of one side of the water tank, and a water pump is fixedly installed in the middle of the same side. A copper pipe is fixedly installed on one side of the water pump, and a heating device is fixedly installed on the outside of the copper pipe. A temperature detector is fixedly installed on one side of the copper pipe, and an atomizing device is fixedly installed on the other side of the copper pipe. A control panel is fixedly installed on one side of the atomizing device.
[0009] In a preferred embodiment, a support plate is fixedly installed on the top of the box, and a guide plate is fixedly installed in the middle of the top of the support plate. The guide plate is a structure used to guide water droplets.
[0010] In a preferred embodiment, a testing chamber is fixedly installed on the top of the support plate, and a sealing layer is fixedly provided on one side of the interior of the testing chamber. The sealing layer is a structure used to seal gaps.
[0011] In a preferred embodiment, two hinges are rotatably connected to one side of the testing chamber, and a glass sealing door is rotatably connected to one side of each hinge. A handle is fixedly installed on one side of the glass sealing door, and the handle is a structure for pulling.
[0012] In a preferred embodiment, a sliding groove is fixedly provided on one side of the inner side of the detection chamber, and two sliding blocks are slidably connected to the two sides of the inner side of the sliding groove. The sliding blocks are structures for sliding inside the sliding groove.
[0013] In a preferred embodiment, a clamping plate is fixedly installed on one side of the sliding block, and a silicone plate is fixedly installed on one side of the clamping plate. The silicone plate is a structure used to clamp the two sides of the lampshade.
[0014] In a preferred embodiment, a spring is fixedly installed on the other side of the sliding block, and an electric actuator is installed on one side of the spring. The operation of the electric actuator facilitates the movement of the sliding block.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This testing device for detecting the anti-fog effect of vehicle headlight covers opens the sealing cover by rotating it, allowing water to be easily fed into the water tank through the inlet. Inside the tank, a level gauge accurately detects and monitors the water level. Subsequently, a water pump extracts the water from the tank and sends it into a thermally conductive copper pipe. The copper pipe serves as the heating medium, and a heating device heats the water inside the pipe for efficient heating. To ensure the safety and accuracy of the heating process, a temperature detector monitors and detects the water temperature inside the copper pipe in real time, facilitating precise temperature control. This method avoids the inconvenience and temperature control difficulties associated with heating the entire water tank, significantly improving the convenience and practicality of the testing device for detecting the anti-fog effect of vehicle headlight covers.
[0017] 2. This testing device for detecting the anti-fog effect of vehicle headlight covers can perform a series of mechanical operations through the retraction of an electric push rod. First, this retraction action will cause the sliding block to slide smoothly inside the sliding groove through the elastic force of the spring. The movement of the sliding block allows the silicone plate on one side of the clamping plate to fit tightly against both sides of the headlight cover, thereby achieving a stable clamping of the headlight cover. This clamping method, through the buffering effect of the spring, effectively avoids the problem of headlight cover breakage that may be caused by excessive clamping force, making the clamping of the headlight cover safer and more convenient. In addition, the tight fit between the sealing layer and the glass sealing door achieves effective sealing around the headlight cover, preventing the intrusion of moisture and dust. At the same time, the guide plate effectively guides the water droplets condensed on the surface of the headlight cover, ensuring that these water droplets will not affect the normal use of the headlight cover. Finally, these water droplets are sent back to the water tank through the water inlet, realizing water recycling, which saves resources and keeps the equipment clean. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the box body in this utility model;
[0020] Figure 3 This is a schematic diagram of the water tank in this utility model;
[0021] Figure 4 This is a schematic diagram of the sliding groove in this utility model.
[0022] 1. Chamber; 11. Support plate; 12. Guide plate; 13. Testing chamber; 14. Sealing layer; 15. Hinge; 16. Glass sealing door; 17. Handle; 2. Water tank; 21. Water inlet; 22. Water filling port; 23. Sealing cover; 24. Level gauge; 25. Water pump; 26. Copper pipe; 27. Heating device; 28. Temperature detector; 29. Atomizing device; 210. Control panel; 3. Sliding groove; 31. Sliding block; 32. Clamping plate; 33. Silicone plate; 34. Spring; 35. Electric actuator. Detailed Implementation
[0023] 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.
[0024] Combined with appendix Figure 1-4 In this embodiment, a testing device for testing the anti-fog effect of vehicle headlight covers includes: a housing 1, a support plate 11 fixedly installed on the top of the housing 1, a guide plate 12 fixedly installed in the middle of the top of the support plate 11, a testing chamber 13 fixedly installed on the top of the support plate 11, a sealing layer 14 fixedly provided on one side of the interior of the testing chamber 13, two hinges 15 rotatably connected to one side of the testing chamber 13, a glass sealing door 16 rotatably connected to one side of the hinges 15, and a handle 17 fixedly installed on one side of the glass sealing door 16.
[0025] Specifically, the hinge 15 flips, which conveniently drives the glass sealing door 16 to flip, thereby making the glass sealing door 16 fit tightly with the sealing layer 14, effectively sealing any gaps. At the same time, the guide plate 12 on the top of the support plate 11 effectively guides the water droplets condensed on the surface, ensuring that these water droplets can be smoothly sent back to the interior of the water tank 2 through the water inlet 21. In addition, the housing 1 provides the necessary bottom support for the entire testing device for detecting the anti-fog effect of vehicle headlight covers, ensuring the stability and functionality of the device.
[0026] A water tank 2 is fixedly installed on one side of the interior of the housing 1. A water inlet 21 is opened on the top of the water tank 2. A water filling port 22 is fixedly installed on the top of one side of the water tank 2. A sealing cover 23 is rotatably connected to the top of the water filling port 22. A level gauge 24 is fixedly installed in the middle of one side of the water tank 2. A water pump 25 is fixedly installed in the middle of one side of the water tank 2. A copper pipe 26 is fixedly installed on one side of the water pump 25. A heating device 27 is fixedly installed on the outside of the copper pipe 26. A temperature detector 28 is fixedly installed on one side of the copper pipe 26. An atomizing device 29 is fixedly installed on the other side of the copper pipe 26. A control panel 210 is fixedly installed on one side of the atomizing device 29.
[0027] Specifically, the sealing cover 23 is opened by rotating the valve, and then an appropriate amount of water is injected into the interior space of the water tank 2 through the water inlet 22. To ensure that the water level in the water tank 2 reaches the appropriate height, the level gauge 24 is used for precise level detection. Next, the water pump 25 is started, which draws water out of the water tank 2 and delivers it to the interior of the copper pipe 26. To heat the water inside the copper pipe 26, the heating device 27 is used to heat it until the water temperature reaches the required specific temperature. To monitor the temperature change during the heating process, the temperature detector 28 continuously detects and reports the current temperature. Finally, the atomizing device 29 can be started by operating the control panel 210. Compressed air is used to form a high-speed airflow through the narrow pipe opening. Based on the increase in flow velocity leading to a decrease in pressure, a negative pressure is generated at the pipe opening, which draws in the liquid and impacts the baffle or pipe wall, causing the liquid to break into micron-sized droplets. The water is then atomized and sprayed out to perform the anti-fogging effect test of the lampshade.
[0028] A sliding groove 3 is fixedly opened on one side of the interior of the testing chamber 13. Two sliding blocks 31 are slidably connected on both sides of the interior of the sliding groove 3. A clamping plate 32 is fixedly installed on one side of the sliding block 31. A silicone plate 33 is fixedly installed on one side of the clamping plate 32. A spring 34 is fixedly installed on the other side of the sliding block 31. An electric push rod 35 is installed on one side of the spring 34.
[0029] Specifically, through the operation of the electric push rods 35 on both sides inside the sliding groove 3, these electric push rods 35 can effectively drive the two sliding blocks 31 to move towards the center inside. This action allows the two clamping plates 32 to be tightly clamped to the lampshade by the silicone plate 33 on one side. In order to ensure safety during the clamping process, a spring 34 is added to the design. Its function is to provide a certain extension during the clamping process, thereby playing a buffering role. This design avoids the problem of the lampshade breaking due to excessive clamping force, and ensures the integrity and safety of the lampshade during installation and use.
[0030] Working principle: First, by rotating and opening the sealing cover 23, water is introduced into the water tank 2 through the water inlet 22. The water level in the water tank 2 is detected by the level gauge 24. The lamp cover is placed between the two clamping plates 32. The retraction of the electric push rods 35 on both sides inside the sliding groove 3 causes the two sliding blocks 31 to slide simultaneously towards the center inside the sliding groove 3, thereby moving the two clamping plates 32 towards the center. The silicone plate 33 on one side of the clamping plate 32 adheres to both sides of the lamp cover for clamping. The extension of the spring 34 provides a buffering effect, preventing the lamp cover from breaking due to excessive clamping force. This improves the clamping performance of the testing device for detecting the anti-fog effect of automotive lamp covers. The hinge 15 moves the glass seal... The sealing door 16 is flipped to fit against the sealing layer 14, thus achieving a sealing effect. The glass sealing door 16 allows for easy observation of the interior. The water pump 25 draws water from the water tank 2 and sends it into the copper pipe 26. The heating device 27 heats the copper pipe 26, thus heating the water inside. The temperature detector 28 monitors the water temperature in real time for precise temperature control. The heated water is then sent through the copper pipe 26 into the atomizing device 29. The control panel 210 controls the operation of the atomizing device 29, atomizing the water and spraying it out for testing the anti-fogging effect of the lamp cover. This improves the practicality of the testing device for testing the anti-fogging effect of vehicle lamp covers.
[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A detection device for detecting the anti-fog effect of a vehicle lamp cover, characterized in that, The device includes a housing (1), a water tank (2) is fixedly installed on one side of the housing (1), a water inlet (21) is opened on the top of the water tank (2), a water filling port (22) is fixedly installed on the top of one side of the water tank (2), a sealing cover (23) is rotatably connected to the top of the water filling port (22), a level gauge (24) is fixedly installed in the middle of one side of the water tank (2), a water pump (25) is fixedly installed in the middle of one side of the water tank (2), a copper pipe (26) is fixedly installed on one side of the water pump (25), a heating device (27) is fixedly installed on the outside of the copper pipe (26), a temperature detector (28) is fixedly installed on one side of the copper pipe (26), an atomizing device (29) is fixedly installed on the other side of the copper pipe (26), and a control panel (210) is fixedly installed on one side of the atomizing device (29).
2. The detection device for detecting the anti-fog effect of the lampshade of the vehicle lamp according to claim 1, characterized in that: A support plate (11) is fixedly installed on the top of the box (1), and a guide plate (12) is fixedly installed in the middle of the top of the support plate (11).
3. The detection device for detecting the anti-fog effect of the lampshade of the vehicle lamp according to claim 2, characterized in that: The top of the support plate (11) is fixedly installed with a test chamber (13), and a sealing layer (14) is fixedly installed on one side of the inside of the test chamber (13).
4. The detection device for detecting the anti-fog effect of the lampshade of the vehicle lamp according to claim 3, characterized in that: The testing chamber (13) has two hinges (15) rotatably connected to one side, and a glass sealing door (16) is rotatably connected to one side of the hinges (15). A handle (17) is fixedly installed on one side of the glass sealing door (16).
5. The detection device for detecting the anti-fog effect of the lampshade of the vehicle lamp according to claim 3, characterized in that: A sliding groove (3) is fixedly provided on one side of the interior of the detection chamber (13), and two sliding blocks (31) are slidably connected on both sides of the interior of the sliding groove (3).
6. The detection device for detecting the anti-fog effect of the lampshade of the vehicle lamp according to claim 5, characterized in that: A clamping plate (32) is fixedly installed on one side of the sliding block (31), and a silicone plate (33) is fixedly installed on one side of the clamping plate (32).
7. The detection device for detecting the anti-fog effect of the lampshade of the vehicle lamp according to claim 6, characterized in that: A spring (34) is fixedly installed on the other side of the sliding block (31), and an electric push rod (35) is installed on one side of the spring (34).
Citation Information
Patent Citations
Inspection car lampshade anti -fogging effect's device
CN207457169U