Defrosting and demisting system for optical lens of external sensor of four-way vehicle
By installing external sensor optical lenses and a defogging system on the four-way vehicle, and utilizing temperature detection and heating of the defogging fan, the problem of frost and fogging on the sensor lenses was solved, simplifying the system structure, improving efficiency, and saving energy.
Patent Information
- Application Number
- CN202423222789.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-26
AI Technical Summary
When the four-way vehicle moves between cold storage and normal temperature environments, the external sensor optical lens frosts and fogs, causing poor detection. The existing relay transmission method requires additional equipment and a complex control system, which is inefficient.
An external sensor optical lens is installed on the four-way vehicle, equipped with a temperature detection probe and a defogging fan. Through the air supply duct and heating belt system, the existing control system is used to judge and start defrosting and defogging in real time, simplifying the system structure and making use of the interior space of the four-way vehicle.
It effectively solves the problem of frost and fogging on sensor lenses, simplifies the system structure, improves efficiency, saves energy, and adapts to different vehicle models and specifications.
Smart Images

Figure CN223644748U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of warehousing and logistics equipment, specifically to a defrosting and defogging system for an external sensor optical lens of a four-way vehicle used in environments with large temperature and humidity differences. Background Technology
[0002] Currently, automated warehouses typically use conveyors to connect cold storage and ambient temperature environments, relaying materials across areas rather than using four-way vehicles for direct transport between these environments. This is because the back-and-forth movement of the four-way vehicles between cold and ambient temperatures causes frost and fog to form on their bodies, malfunctioning the photoelectric sensors. Current relay-transfer methods in China require additional conveyor equipment, more four-way vehicles, more electrical components, and more complex control systems, resulting in longer material handling times and relatively lower efficiency. Utility Model Content
[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a defrosting and defogging system for the optical lens of a four-way vehicle external sensor.
[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows:
[0005] The four-way vehicle external sensor optical lens defrosting and defogging system includes an external sensor optical lens installed on the four-way vehicle body. A temperature detection probe and a terminal air outlet are correspondingly installed at the external sensor optical lens. The temperature detection probe and the terminal air outlet are both installed on the four-way vehicle body. The terminal air outlet is connected to the air outlet manifold inside the four-way vehicle body through an air supply duct. A defogging fan is installed at the lower end of the air outlet manifold. An air supply heating belt is installed on the side of the defogging fan connected to the air outlet manifold, and an air intake filter cotton core is installed on the other side of the defogging fan.
[0006] The terminal air outlet is fan-shaped.
[0007] The air supply duct is installed along the internal structural frame of the four-way vehicle body.
[0008] The air supply heating belt is coiled into a disc by a bracket and built into the air outlet manifold.
[0009] The air intake filter core is installed in the slot of the demisting fan.
[0010] At least two external sensor optical lenses are installed on the four-way vehicle body, and each external sensor optical lens is connected to the exhaust manifold through a corresponding air supply duct.
[0011] The features of this utility model are: it solves the problem of poor detection caused by frost and fogging of the external sensor optical lens when the four-way vehicle shuttles between low temperature storage environment and normal temperature environment; it simplifies the system structure, is compact in size, makes full use of the space between the drive, transmission and electrical components inside the four-way vehicle; at the same time, it uses the existing control system of the four-way vehicle to judge whether defrosting and defogging are needed by the real-time temperature change feedback of the temperature detection probe; when defrosting and defogging are needed, it controls the defogging fan to be turned on, which is highly efficient and energy-saving. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Figure 2 This is a structural schematic diagram of the demisting fan structure of this utility model.
[0014] Figure 3 This is a schematic diagram of the overall appearance of the utility model used in a four-way vehicle.
[0015] Figure 4 This is a schematic diagram of the internal layout of a four-way vehicle according to this utility model.
[0016] The components include: 1. Four-way vehicle body; 2. External sensor optical lens; 3. Terminal air outlet; 4. Temperature detection probe; 5. Air outlet manifold; 6. Air supply duct; 7. Demisting fan; 8. Air intake filter core; 9. Air supply heating belt. Detailed Implementation
[0017] like Figures 1-4As shown, this utility model is a defrosting and defogging system for an external sensor optical lens of a four-way vehicle. It includes an external sensor optical lens 2 installed on the vehicle body 1. Fogging or frost buildup on the surface of the external sensor optical lens 2 can cause sensor malfunction and prevent the four-way vehicle from operating normally. Therefore, a temperature detection probe 4 and a terminal air outlet 3 are correspondingly installed at the external sensor optical lens 2. Both the temperature detection probe 4 and the terminal air outlet 3 are installed on the vehicle body 1. The temperature detection probe 4 is connected to the four-way vehicle's control system and sends ambient temperature data to the four-way vehicle. The temperature detection probe 4 collects the ambient temperature of the four-way vehicle to determine whether to activate the defogging function. The air outlet 3 blows air onto the surface of the external sensor optical lens 2. The terminal air outlet 3 is connected to the air manifold 5 inside the four-way vehicle body 1 via an air supply duct 6. The air supply duct 6 is installed along the internal structural frame of the four-way vehicle body 1, extending at one end to the external sensor optical lens 2 and at the other end to the terminal air outlet 3. The air supply duct 6 uses cold-resistant materials and is wrapped with a heat-reflecting aluminum foil and fiberglass insulation corrugated sleeve for heat insulation, ensuring that hot air is dissipated through the duct. For heat cooling, the terminal air outlet 3 is made of resin and is fan-shaped, which can change the airflow of the circular cross-section air duct 6 into a narrow air curtain, resulting in a better flushing effect on frost and fog. A demisting fan 7 is installed at the lower end of the air outlet manifold 5. An air supply heating belt 9 is installed on the side of the demisting fan 7 connected to the air outlet manifold 5. The air supply heating belt 9 is coiled into a disc by a bracket and built into the air outlet manifold 5, so that the airflow can pass through the air supply heating belt 9 with the maximum contact area. The air supply heating belt 9 is a PTC self-limiting temperature tracing tape, which can stop heating when a preset temperature is reached. The system offers excellent heating performance, safety, and energy efficiency. An air intake filter core 8 is installed on the other side of the defrosting fan 7. This air intake filter core 8 is a standard consumable and can be quickly installed and removed directly from the slot at the front of the defrosting fan 7. The four-way vehicle's control system can be equipped with a defrosting and defogging system timer module. Once the preset replacement time is reached, the four-way vehicle's control system will remind the user to replace the air intake filter core 8. The air intake filter core 8, defrosting fan 7, air supply heating belt 9, and air outlet manifold 5 are integrated components, assembled from bottom to top into a single assembly. The compact structure facilitates installation and wiring in confined spaces.
[0018] The four-way vehicle's control system can automatically turn the defrosting and defogging system on and off based on the temperature feedback from the temperature detection probe 4, saving energy. When the four-way vehicle moves from the cold storage to a normal temperature environment, water in the normal temperature air will condense into frost on the low-temperature four-way vehicle. Therefore, when the temperature detection probe 4 detects a temperature rise, the four-way vehicle control system controls the defrosting and defogging system to turn on. The air supply heating belt 9 heats the air, and the defogging fan 7 operates, creating an air pressure difference between the upper and lower parts. This allows outside air to enter the intake filter cotton core 8 from the bottom, filtering out dust and allowing clean air to flow from bottom to top. Under the rotation of the impeller of the defogging fan 7, the air passes through the intake filter cotton core 8, the defogging fan 7, the air supply heating belt 9, the exhaust manifold 5, the air supply duct 6, and the terminal air outlet 3, and finally blows onto the external sensor optical lens 2. The hot air continuously heats the external sensor optical lens 2 to blow away the frost and prevent further frost formation. When the four-way vehicle is detected to be returning to the cold storage and entering the defogging countdown program, the air supply heating belt 9 and the defogging fan 7 are turned off, thus stopping the defogging process.
[0019] At least two external sensor optical lenses 2 are installed on the four-way vehicle body 1. Each external sensor optical lens 2 is connected to the exhaust manifold 5 through a corresponding air supply duct 6. The defrosting and defogging system adopts a set of air intake filter cotton core 8, defogging fan 7, air supply heating belt 9, and exhaust manifold 5. The exhaust manifold 5 can connect to multiple air supply ducts 6 and terminal air outlets 3, so that a set of heating and air supply system can provide air supply and defogging to multiple external sensor optical lenses 2 at different locations. The exhaust manifold 5 of the four-way vehicle is a modular component and can be set to one-to-two, one-to-three, one-to-four, one-to-five, and one-to-six specifications. By switching different specifications of exhaust manifold 5, air supply can be achieved at multiple locations, which can be adapted to a variety of four-way vehicles of different specifications.
[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A defrosting and defogging system for an external sensor optical lens of a four-way vehicle, characterized in that: The system includes an external sensor optical lens mounted on the four-way vehicle body. A temperature detection probe and a terminal air outlet are correspondingly installed at the external sensor optical lens. Both the temperature detection probe and the terminal air outlet are mounted on the four-way vehicle body. The terminal air outlet is connected to the air outlet manifold inside the four-way vehicle body through an air supply duct. A defogging fan is installed at the lower end of the air outlet manifold. An air supply heating belt is installed on the side of the defogging fan connected to the air outlet manifold, and an air intake filter cotton core is installed on the other side of the defogging fan.
2. The defrosting and defogging system for the optical lens of the four-way vehicle external sensor as described in claim 1, characterized in that: The terminal air outlet is fan-shaped.
3. The defrosting and defogging system for the optical lens of the four-way vehicle external sensor as described in claim 1, characterized in that: The air supply duct is installed along the internal structural frame of the four-way vehicle body.
4. The defrosting and defogging system for the optical lens of the four-way vehicle external sensor as described in claim 1, characterized in that: The air supply heating belt is coiled into a disc by a bracket and built into the air outlet manifold.
5. The defrosting and defogging system for the optical lens of the four-way vehicle external sensor as described in claim 1, characterized in that: The air intake filter core is installed in the slot of the demisting fan.
6. The defrosting and defogging system for the optical lens of the four-way vehicle external sensor as described in claim 1, characterized in that: At least two external sensor optical lenses are installed on the four-way vehicle body, and each external sensor optical lens is connected to the exhaust manifold through a corresponding air supply duct.