Radar temperature control device applied to ultralow temperature environment
By introducing heating and temperature control devices into the radar system, combined with a fiberglass radome and heat dissipation system, the problem of the radar system being unable to start at temperatures below -55°C has been solved, enabling normal startup and operation under extreme temperatures, reducing costs and improving the system's ease of maintenance.
Patent Information
- Application Number
- CN202423260947.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing radar systems cannot start normally in environments with temperatures below -40°C, especially in extreme temperatures below -55°C. Furthermore, the use of military-grade components is costly and cannot guarantee the normal startup of the radar system.
It employs two heating devices and two temperature control devices, combined with a fiberglass radome, to ensure that the radar system can start normally in an ultra-low temperature environment of -60℃, and maintains normal operation in a high temperature environment through a heat dissipation system, using industrial-grade components.
It enables the radar system to start normally in extreme temperatures below -55℃, with low cost and modular design that facilitates maintenance and replacement, thus improving the radar system's low-temperature resistance and competitiveness.
Smart Images
Figure CN223552039U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of radar systems, and specifically relates to a radar temperature control device for use in ultra-low temperature environments. Background Technology
[0002] Generally, consumer-grade devices typically operate from 0°C to +70°C, industrial-grade devices from -40°C to +105°C, automotive-grade devices from -55°C to +125°C, and military-grade devices from -55°C to +150°C. In terms of cost, for devices with similar specifications, the price order is: military-grade > automotive-grade > industrial-grade > consumer-grade. Considering both cost and operating temperature range, consumer-grade devices are most commonly used in products intended for indoor and outdoor applications.
[0003] Security radar, as a radar system used for surveillance and direction detection, is used outdoors for extended periods, often deployed in border areas and islands. These areas typically have extreme environments with low or high temperatures. For cost reasons, most components used in radar systems are industrial-grade. According to the probability of extreme low temperatures in the "GJB150.4A-2009 Low Temperature Test," the probability (time risk rate) of temperatures below -40℃ in my country is 35%. Using industrial-grade components to meet the -40℃ low-temperature environment requirement is sufficient for most operating areas. If only low-temperature operation is required, without requiring low-temperature start-up, the radar system's own heat generation further expands its adaptable operating area, satisfying most operational needs.
[0004] However, for regions in my country where the probability of temperatures dropping below -40°C (time risk rate) is 35%, requiring radar systems to start at -40°C necessitates the use of automotive-grade or industrial-grade components. This not only significantly increases costs but also means that some components are only industrial-grade at best, failing to guarantee normal startup of the radar system in environments as cold as -55°C. Globally, the probability of temperatures dropping below -55°C (time risk rate) is 6%, meaning that even using military-grade components for all components cannot guarantee normal startup of the radar system in extreme temperatures below -55°C. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a radar temperature control device for use in ultra-low temperature environments. This invention utilizes two heating devices and two temperature control devices, along with a fiberglass radome, to enable the radar system to start normally in ultra-low temperature environments down to -60℃; simultaneously, it adds a pair of axial flow fans for heat dissipation to ensure the radar system can also operate normally in high-temperature environments.
[0006] The technical solution of this utility model is: a radar temperature control device applied in ultra-low temperature environments, comprising a radar system, a fiberglass radome, a temperature control system, a heat dissipation system, a mounting chassis, and a power switch. The radar system, fiberglass radome, temperature control system, and heat dissipation system are mounted on the mounting chassis, and the power switch outputs AC power. The feature is that the radar system, temperature control system, and heat dissipation system are installed inside the fiberglass radome, forming a relatively sealed space between the fiberglass radome and the mounting chassis; the temperature control system includes a heating element, a -40℃~20℃ thermostat, a -30℃~30℃ thermostat, and a fan heater; the heat dissipation system includes AC-D... The system consists of an AC adapter, a 0℃~120℃ thermostat, and two axial fans. When the temperature is below -40℃, the heating element immediately operates upon power-up, encasing the fan heater. AC power passes through the -40℃~20℃ thermostat to the fan heater; the operating temperature range of the -40℃~20℃ thermostat is set to -40℃~-10℃. AC power passes through the -30℃~30℃ thermostat to the radar system. AC power passes through the 0℃~120℃ thermostat to the AC-DC adapter, which outputs DC power to the axial fans. The two axial fans are located on the mounting chassis, with opposite airflow directions.
[0007] According to the radar temperature control device for ultra-low temperature environments described above, the characteristic is that the mounting chassis adopts the form of a stainless steel bracket plus an aluminum alloy base plate.
[0008] According to the radar temperature control device for ultra-low temperature environments described above, the feature is that the fiberglass radome is made of fiberglass prepreg and paper honeycomb.
[0009] According to the radar temperature control device for ultra-low temperature environments described above, the feature is that two fan heaters are provided.
[0010] According to the radar temperature control device for ultra-low temperature environments described above, the device is characterized in that: an AC power interface and an RJ45 output interface are also provided on the mounting chassis; AC power enters from the AC power interface, passes through the power switch, and then enters the heating element, the -40℃~20℃ temperature controller, the -30℃~30℃ temperature controller, and the 0℃~120℃ temperature controller; the power switch interface is located on the outside of the mounting chassis.
[0011] According to the radar temperature control device for ultra-low temperature environments described above, the characteristic is that the power-on temperature setting knob of the -30℃~30℃ temperature controller is located at the bottom of the mounting chassis.
[0012] According to the radar temperature control device for ultra-low temperature environments described above, the feature is that: the -30℃~30℃ temperature controller is a normally closed temperature controller; the 0℃~120℃ temperature controller is a normally closed temperature controller.
[0013] According to the radar temperature control device for ultra-low temperature environments described above, the device is characterized in that it further includes an observation window located on the mounting chassis.
[0014] According to the radar temperature control device for ultra-low temperature environments described above, the observation window is connected to the mounting base via a damping hinge and a door catch.
[0015] According to the radar temperature control device for ultra-low temperature environments described above, the radar system is located at the center of the mounting chassis, with axial flow fans on its front and rear sides, and heating elements and fan heaters symmetrically arranged on its left and right sides.
[0016] The beneficial effects of this utility model are: it solves the problem that the performance of industrial-grade radar and turntable components and modules is limited by temperature characteristics, making it impossible to start and work normally in ultra-low temperature environments of -40℃ and below. It also has a low cost, and the heating device used is modular, which facilitates maintenance and replacement, ensures the low temperature resistance of the radar system, and improves product competitiveness. Attached Figure Description
[0017] Figure 1 This is the logic design diagram for a radar temperature control device.
[0018] Figure 2 This is a schematic diagram of the implementation scheme for the radar temperature control device.
[0019] Explanation of reference numerals in the attached diagram: 1. Mounting chassis; 2. Radar system; 3. Fiberglass radome; 4. AC power interface; 5. Power switch; 6. RJ45 output interface; 7. AC-DC adapter; 8. Heating element; 9. -40℃~20℃ thermostat; 10. -30℃~30℃ thermostat; 11. 0℃~120℃ thermostat; 12. Axial flow fan; 13. Fan heater; 14. Observation window. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings.
[0021] like Figure 1 and Figure 2As shown, this utility model discloses a radar temperature control device for use in ultra-low temperature environments, comprising a radar system 2, a fiberglass radome 3, a temperature control system, a heat dissipation system, and a mounting chassis 1. The radar system 2, fiberglass radome 3, temperature control system, and heat dissipation system are all mounted on the mounting chassis 1, and are housed within the fiberglass radome 3, forming a relatively enclosed space between the fiberglass radome 3 and the mounting chassis 1. The mounting chassis 1 utilizes a stainless steel bracket and an aluminum alloy base plate to ensure sufficient strength while controlling its weight. The fiberglass radome 3 is constructed from fiberglass prepreg and paper honeycomb, providing excellent wave transmission, thermal insulation, and wind resistance.
[0022] like Figure 1 As shown, the temperature control system includes a heating element 8, a -40℃ to 20℃ thermostat 9, a -30℃ to 30℃ thermostat 10, and a fan heater 13. Multiple fan heaters 13 can be installed depending on the size of the equipment, such as... Figure 2 Two fan heaters 13 are installed in the middle. The heat dissipation system includes an AC-DC adapter 7, a 0℃~120℃ temperature controller 11, and an axial flow fan 12.
[0023] like Figure 1 and Figure 2 As shown, the mounting chassis 1 is equipped with an AC power interface 4, a power switch 5, an RJ45 output interface 6, and an observation window 14. AC power enters through the AC power interface 4, passes through the power switch 5, and then enters other modules. The power switch 5 is located on the outside of the mounting chassis 1 for easy switching of the entire system on and off. Figure 1 and Figure 2 As shown, the AC power output from the power switch 5 enters the heating element 8, the -40℃~20℃ thermostat 9, the -30℃~30℃ thermostat 10, and the 0℃~120℃ thermostat 11, respectively.
[0024] like Figure 1 and Figure 2 As shown, the heating element 8 has a built-in temperature controller, and its start-up temperature is set to -30℃. When the temperature is below -30℃, the heating element 8 starts working immediately after being powered on. The heating element 8 surrounds the fan heater 13. The start-up temperature of the heating element 8 can also be set to other temperatures, such as -40℃, but -30℃ is preferred. Figure 1 and Figure 2As shown, AC power enters the fan heater 13 through the -40℃~20℃ thermostat 9; the operating temperature range of the -40℃~20℃ thermostat 9 is set to -40℃~-10℃. The fan heater 13 only starts working when the heating element 8 heats it to -40℃, thus avoiding damage to the motor caused by starting the fan heater 13 in an environment below -40℃. When the -40℃~20℃ thermostat 9 detects that the air temperature inside the fiberglass radome 3 is higher than -10℃, it will cut off the power supply to the fan heater 13, thereby extending the service life of the fan heater 13.
[0025] like Figure 1 and Figure 2 As shown, AC power enters the radar system 2 through the -30℃~30℃ thermostat 10. The -30℃~30℃ thermostat 10 is a normally closed thermostat, set to an operating temperature of -25℃. When the -30℃~30℃ thermostat 10 detects that the air temperature inside the fiberglass radome 3 is higher than -25℃, it will supply power to the radar system 2 to prevent damage caused by starting the radar system 2 in an environment below -30℃. The lower limit of the operating temperature range for the radar system 2 is -40℃. The reason for setting the operating temperature of the -30℃~30℃ thermostat 10 to -25℃ is that when the air temperature inside the fiberglass radome 3 is -40℃, the internal temperature of the radar system 2 is approximately... If the ambient temperature is below -40℃, powering on the radar system 2 poses a certain risk. It should be noted that the power-on temperature setting knob for the -30℃~30℃ temperature controller 10 is located at the bottom of the mounting chassis 1. This addresses the issue that when the ambient temperature is below 55℃, the air temperature inside the fiberglass radome 3 will not reach -25℃ due to insufficient heat dissipation of the fan heater 13, preventing the radar system 2 from starting. In environments with temperatures above -40℃ for extended periods, the internal temperature of the radar system 2 will gradually approach the ambient temperature. In this case, the power-on temperature of the -30℃~30℃ temperature controller 10 is allowed to be below -25℃, but it is generally not recommended to set this temperature below -35℃.
[0026] like Figure 1 and Figure 2 As shown, AC power enters AC-DC adapter 7 through 0℃~120℃ thermostat 11. 0℃~120℃ thermostat 11 is a normally closed thermostat, with the power-on temperature set at 40℃. This prevents damage to AC-DC adapter 7 caused by starting at temperatures below -40℃ and also extends the service life of axial flow fan 12 in low-temperature environments.
[0027] like Figure 1 and Figure 2As shown, the AC-DC adapter 7 outputs DC power to the axial flow fan 12; the axial flow fans 12 are all located on the mounting chassis 1, and the two axial flow fans have opposite air outlet directions, one blowing inward and the other blowing outward, to ensure that the high temperature air inside the fiberglass radome 3 can effectively convect with the outside air, so that the operating temperature of the radar system 2 is not too high.
[0028] like Figure 2 As shown, the observation window 14 is located on the mounting chassis 1. The observation window 14 is connected to the mounting chassis 1 via a damping hinge and a door catch, making it easy to open and close. Through the observation window 1, the working status of each module inside the fiberglass radome 3 can be observed, and operations such as unlocking the turntable pin, turning the power on and off can be performed on the radar system 2, reducing the number of times the fiberglass radome 3 needs to be disassembled and reassembled due to malfunctions.
[0029] like Figure 2 As shown, the radar system 2 of this invention is preferably located at the center of the mounting chassis 1, with axial flow fans 12 arranged on its front and rear sides, and heating elements 8 and fan heaters 13 symmetrically arranged on its left and right sides. This ensures that the internal operating temperature of the radar system 2 is relatively uniform during operation, thanks to the rotation of the radar system 2 antenna, thus making the temperature control of this invention more accurate. This invention's radar system is designed to start normally at extreme temperatures below -55℃, and all components are industrial-grade. The ultra-low temperature in this invention refers to extreme temperatures below -55℃.
Claims
1. A radar temperature control device for use in ultra-low temperature environments, comprising a radar system, a fiberglass radome, a temperature control system, a heat dissipation system, a mounting chassis, and a power switch, wherein the radar system, fiberglass radome, temperature control system, and heat dissipation system are mounted on the mounting chassis, and the power switch outputs AC power, characterized in that: The radar system, temperature control system, and heat dissipation system are installed inside the fiberglass radome, forming a relatively enclosed space between the radome and the mounting chassis. The temperature control system includes a heating element, a -40℃ to 20℃ thermostat, a -30℃ to 30℃ thermostat, and a fan heater. The heat dissipation system includes an AC-DC adapter, a 0℃ to 120℃ thermostat, and two axial flow fans. When the temperature is below -40℃, the heating element starts working immediately after being energized, and the heating element surrounds the fan heater. AC power enters the fan heater through the -40℃ to 20℃ thermostat. The operating temperature range of the -40℃ to 20℃ thermostat is set to -40℃ to -10℃. AC power enters the radar system through the -30℃ to 30℃ thermostat. AC power enters the AC-DC adapter through the 0℃ to 120℃ thermostat, and the AC-DC adapter outputs DC power to the axial flow fans. The two axial flow fans are located on the mounting chassis, and their airflow directions are opposite.
2. The radar temperature control device for ultra-low temperature environments according to claim 1, characterized in that: The mounting chassis uses a stainless steel bracket and an aluminum alloy base plate.
3. The radar temperature control device for ultra-low temperature environments according to claim 1, characterized in that: The fiberglass radome is made of fiberglass prepreg with paper honeycomb.
4. A radar temperature control device for use in ultra-low temperature environments according to any one of claims 1 to 3, characterized in that: Install two fan heaters.
5. A radar temperature control device for use in ultra-low temperature environments according to any one of claims 1 to 3, characterized in that: The mounting chassis is also equipped with an AC power interface and an RJ45 output interface. AC power enters from the AC power interface, passes through the power switch, and then enters the heating element, the -40℃~20℃ thermostat, the -30℃~30℃ thermostat, and the 0℃~120℃ thermostat. The power switch interface is located on the outside of the mounting chassis.
6. A radar temperature control device for use in ultra-low temperature environments according to any one of claims 1 to 3, characterized in that: The power-on temperature setting knob for the -30℃~30℃ thermostat is located at the bottom of the mounting chassis.
7. A radar temperature control device for use in ultra-low temperature environments according to any one of claims 1 to 3, characterized in that: The -30℃~30℃ thermostat is a normally closed thermostat; the 0℃~120℃ thermostat is a normally closed thermostat, with the heating element having a built-in thermostat, and its start-up temperature is set to -30℃.
8. A radar temperature control device for use in ultra-low temperature environments according to any one of claims 1 to 3, characterized in that: It also includes an observation window, which is located on the mounting chassis.
9. A radar temperature control device for use in ultra-low temperature environments according to claim 8, characterized in that: The observation window is connected to the mounting chassis via damping hinges and a door catch.
10. A radar temperature control device for use in ultra-low temperature environments according to claim 1, characterized in that: The radar system is located at the center of the mounting chassis. Axial flow fans are installed on the front and rear sides of the radar system, and heating elements and fan heaters are symmetrically installed on the left and right sides.