Terminal temperature control switch assembly, switch circuit and aviation communication meteorological information terminal

Abstract

The utility model relates to the technical field of switches, and discloses a terminal temperature control switch assembly, which comprises a power supply unit board, namely a board where a circuit is located, and is used for supplying power; the temperature control switch is attached to the radiator of the power amplifier module and used for monitoring the working environment temperature of the power amplifier module in real time; the radiator of the power amplifier module is designed to improve the heat efficiency and is tightly attached to the metal surface of the temperature control switch to realize temperature monitoring, and the temperature control switch comprises a metal surface which is directly contacted with the surface of the radiator of the power amplifier module to improve the temperature sensing precision and the response speed; according to the utility model, the device monitors the working temperature of the power amplifier module in real time through the terminal temperature control switch assembly. When the temperature reaches the preset safety threshold value, the temperature control switch is automatically triggered, the power supply is cut off immediately, and the power amplifier module is effectively prevented from being damaged due to overheating.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a terminal temperature control switch component, a switch circuit and an aviation communication meteorological information terminal. Background Art

[0002] Currently, the most common method is to control the power on and off by buttons or switches. However, this terminal needs to send and receive signals when communicating. If it continues to work for a long time, the temperature will be too high. At this time, if there is no manual shutdown operation, the equipment may be damaged. At this time, a temperature sensor is needed to determine whether the temperature is too high. When the temperature reaches the set temperature, the device can perform over-temperature protection by itself, cut off the transmitting power, and issue an alarm sound to prompt, so as to avoid damage caused by long-term over-temperature operation.

[0003] To this end, we propose a terminal temperature control switch component, a switch circuit and an aviation communication meteorological information terminal. Utility Model Content

[0004] The utility model mainly solves the above-mentioned existing technical problems and provides a terminal temperature control switch component, a switch circuit and an aviation communication meteorological information terminal.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the terminal temperature control switch assembly includes a power supply unit board, that is, a board where the circuit is located, which is used for power supply;

[0006] The temperature control switch is attached to the heat sink of the power amplifier module and is used to monitor the working environment temperature of the power amplifier module in real time;

[0007] The heat sink of the power amplifier module is designed to improve thermal efficiency and fits tightly with the metal surface of the temperature control switch to achieve temperature monitoring.

[0008] Preferably, the temperature control switch includes a metal surface that directly contacts the surface of the power amplifier module heat sink to improve the accuracy and response speed of temperature sensing;

[0009] When the temperature control switch detects that the temperature of the power amplifier module exceeds the preset threshold, it automatically cuts off the power supply of the power unit board to the power amplifier module to prevent overheating damage.

[0010] A switch circuit, according to the terminal temperature control switch assembly described above, the switch circuit includes transistors Q1 and Q2, wherein Q1 is an NPN transistor and Q2 is a PMOS transistor, for controlling the power switch of the power amplifier module;

[0011] Voltage divider resistors R1, R2, R4 and R5 are configured to adjust the base and gate voltages of transistors Q1 and Q2 to control the on and off of the circuit;

[0012] Capacitor C1, connected between the emitter of Q1 and ground, is used to stabilize the switching action.

[0013] Preferably, when the temperature-controlled switch detects that the ambient temperature reaches the set temperature, the transistors Q1 and Q2 are connected in series and cut off, causing the output voltage VOUT to be interrupted, thereby cutting off the power supply to the power amplifier module.

[0014] Preferably, the microcontroller unit MCU has multiple input and output ports for receiving and sending control signals, monitoring and responding to state changes of the temperature control switch. The level received by the PA.1 port of the MCU becomes a low level. When the MCU detects that the PA.1 port level does not match the power-on instruction, an alarm sound is issued to prompt the user that the state of the circuit has changed.

[0015] The voltage divider resistors R6 and R7 are configured to ensure that the PA.1 input level of the MCU is within the specified range and can correctly determine the high and low levels.

[0016] Preferably, the DC-DC converter U3 converts the input voltage VIN into the VCC level required by the MCU to ensure stable operation of the circuit.

[0017] Preferably, transistors Q1 and Q2 are connected via resistors R4 and R5, R5 is connected between the gate of Q2 and the collector of Q1, and R4 is connected between the source and gate of Q2, so as to form a control link of Q1 to Q2.

[0018] An aviation communication meteorological information terminal comprises any of the above-mentioned terminal temperature control switch components and switch circuits.

[0019] Beneficial Effects

[0020] The utility model provides a terminal temperature control switch assembly, a switch circuit and an aviation communication meteorological information terminal. It has the following beneficial effects:

[0021] (1) The terminal temperature control switch assembly, switch circuit and aviation communication meteorological information terminal, temperature monitoring and protection:

[0022] The device monitors the operating temperature of the power amplifier module in real time through the terminal temperature control switch component. When the temperature reaches the preset safety threshold, the temperature control switch is automatically triggered to immediately cut off the power supply, effectively preventing the power amplifier module from being damaged due to overheating.

[0023] (2) The terminal temperature control switch assembly, switch circuit and aviation communication meteorological information terminal, the switch circuit is responsible for controlling the power switch of the power amplifier module. Once the temperature control switch is triggered, the switch circuit immediately executes the power cut-off instruction to protect the system from damage caused by overheating, while ensuring the safety of equipment and operators.

[0024] (3) The microcontroller (MCU) in the terminal temperature control switch assembly, switch circuit and aviation communication meteorological information terminal continuously monitors the state change of the temperature control switch. When the temperature exceeds the safe range, the MCU will issue a clear alarm signal, such as a sound or indicator light, to prompt the user of the state change of the device, enhance the user's perception of the device's operating status, and ensure that necessary countermeasures are taken in a timely manner.

[0025] (4) The terminal temperature control switch assembly, switch circuit and aviation communication meteorological information terminal have built-in DC-DC converters to ensure that each electronic component can operate within a stable voltage range. This stable power supply not only improves the overall stability of the system, but also reduces the possibility of equipment failure due to voltage fluctuations and extends the service life of the equipment.

[0026] (5) The terminal temperature control switch assembly, switch circuit and aviation communication meteorological information terminal integrate advanced remote monitoring technology. Through the connection with the network management platform, the operator can monitor the operating status and meteorological information of the equipment in real time. This remote monitoring function not only improves the management efficiency of the equipment, but also can quickly respond to any problems in the operation of the equipment, ensuring the safe operation of the equipment in various complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0028] The structures, proportions, sizes, etc. disclosed in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of the utility model. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the utility model without affecting the effects and purposes that can be achieved by the utility model.

[0029] Figure 1 This is the circuit diagram of the utility model;

[0030] Figure 2 This is a partial view of the structure of the utility model. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment: Terminal temperature control switch assembly, switch circuit and aviation communication meteorological information terminal, such as Figure 1 - Figure 2 As shown,

[0033] The terminal temperature control switch assembly includes a power supply unit board, that is, the board where the circuit is located, which is used for power supply;

[0034] The temperature control switch is attached to the heat sink of the power amplifier module and is used to monitor the working environment temperature of the power amplifier module in real time;

[0035] The heat sink of the power amplifier module is designed to improve thermal efficiency and fits tightly with the metal surface of the temperature control switch to achieve temperature monitoring.

[0036] In a further solution of the utility model, the temperature control switch includes a metal surface, which directly contacts the surface of the power amplifier module heat sink to improve the accuracy and response speed of temperature sensing;

[0037] When the temperature control switch detects that the temperature of the power amplifier module exceeds the preset threshold, it automatically cuts off the power supply of the power unit board to the power amplifier module to prevent overheating damage.

[0038] A switch circuit, according to the terminal temperature control switch assembly described above, the switch circuit includes transistors Q1 and Q2, wherein Q1 is an NPN transistor and Q2 is a PMOS transistor, for controlling the power switch of the power amplifier module;

[0039] Voltage divider resistors R1, R2, R4 and R5 are configured to adjust the base and gate voltages of transistors Q1 and Q2 to control the on and off of the circuit;

[0040] Capacitor C1, connected between the emitter of Q1 and ground, is used to stabilize the switching action.

[0041] In a further solution of the present invention, when the temperature control switch detects that the ambient temperature reaches the set temperature, the transistors Q1 and Q2 are connected in series and cut off, resulting in an interruption of the output voltage VOUT, thereby cutting off the power supply to the power amplifier module.

[0042] In a further solution of the utility model, a microcontroller unit MCU has multiple input and output ports for receiving and sending control signals, monitoring and responding to state changes of the temperature control switch. The level received by the PA.1 port of the MCU becomes a low level. When the MCU detects that the PA.1 port level does not match the power-on instruction, an alarm sound is issued to prompt the user that the circuit state has changed.

[0043] The voltage divider resistors R6 and R7 are configured to ensure that the PA.1 input level of the MCU is within the specified range and can correctly determine the high and low levels.

[0044] In a further solution of the present invention, a DC-DC converter U3 converts the input voltage VIN into the VCC level required by the MCU to ensure stable operation of the circuit.

[0045] In a further solution of the present invention, transistors Q1 and Q2 are connected via resistors R4 and R5, R5 is connected between the gate of Q2 and the collector of Q1, and R4 is connected between the source and gate of Q2 to form a control link of Q1 to Q2.

[0046] The aviation communication meteorological information terminal includes any of the above-mentioned terminal temperature control switch components and switch circuits. The terminal is a fixed station integrating a very high frequency (VHF) transceiver unit and a meteorological display and control unit. The terminal can realize the communication between ground staff and aircraft, and display the meteorological information of the ground platform to the radio operator in real time. It can also remotely monitor the operating status of the equipment in real time through the network management platform, and query the meteorological information of various ground platforms in real time.

[0047] Among them, Figure 2 As shown, 1 is a power unit board, that is, the board where the circuit is located, 2 is a temperature control switch, and 3 is a heat sink of the power amplifier module. The metal surface of the temperature control switch is in contact with the heat sink of the power amplifier module.

[0048] When the terminal is working normally, it needs to communicate with the air. If it works for a long time, the terminal's transmitter module will continue to heat up. If the module continues to heat up, when the temperature exceeds a certain temperature, the module may be damaged. At this time, it is necessary to turn off the power supply of the transmitter module. The temperature control switch circuit uses the temperature control switch to obtain the temperature of the transmitter module in real time. When its temperature reaches the set temperature, the temperature control switch will cut off the power supply of the transmitter module, thereby achieving the role of protecting the module.

[0049] Working principle of the utility model: This solution uses a temperature sensor to determine whether the temperature is too high. When the temperature reaches the set temperature, the device can perform over-temperature protection by itself and shut down the power supply, thus avoiding damage caused by long-term over-temperature operation.

[0050] During normal operation, the switch signal provides a high-level signal, which is divided by R1 and R2 resistors to the base of Q1. At this time, Q1 is turned on, and the collector level of Q1 is low, so a voltage difference is formed between the gate and source of Q2, Q2 is turned on, and VOUT has a voltage output. At this time, the PA.1 level of the MCU is the voltage of VOUT after being divided by R6 and R7, which is a high level. The voltage is judged to be in the on state, which is consistent with the power-on instruction.

[0051] When the temperature detected by the temperature control switch TP1 reaches the temperature of the temperature control switch, the state of the temperature control switch TP1 changes from normally open to normally closed, so that the base state of Q1 becomes 0, that is, low level. At this time, Q1 is cut off, the collector level of Q1 is high, and there is basically no voltage difference between the gate and source of Q2, so Q2 is cut off and VOUT has no voltage output. At this time, PA.1 of the MCU is low level, judging the power switch state, if it is inconsistent with the power-on instruction, the MCU will issue an alarm sound to prompt.

[0052] U3 is a DC-DC circuit, which converts the VIN level into the VCC level required by the MCU.

[0053] Specific application scenarios

[0054] This circuit is located in the power unit circuit, and the temperature control switch is fitted with the radiator wall of the power transmitter module, which can monitor the working environment temperature of the power transmitter module in real time. When the working environment temperature of the power transmitter module reaches the set temperature, the working state of the temperature control switch is switched from the original disconnected state to the on state, cutting off the power output. At the same time, the MCU inquires that the power off state is inconsistent with the power on state, and issues an alarm sound to prompt, thereby achieving the function of protecting the module.

[0055] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. The terminal temperature control switch assembly is characterized by: It includes a power supply unit board, which is the board where the circuit is located and is used for power supply; The temperature control switch is attached to the heat sink of the power amplifier module and is used to monitor the working environment temperature of the power amplifier module in real time; The heat sink of the power amplifier module is designed to improve thermal efficiency and fits tightly with the metal surface of the temperature control switch to achieve temperature monitoring.

2. The terminal temperature control switch assembly according to claim 1, characterized in that: The temperature control switch includes a metal surface that directly contacts the surface of the power amplifier module heat sink to improve the accuracy and response speed of temperature sensing; When the temperature control switch detects that the temperature of the power amplifier module exceeds the preset threshold, it automatically cuts off the power supply of the power unit board to the power amplifier module to prevent overheating damage.

3. The switch circuit, according to claim 2, wherein the terminal temperature control switch assembly is characterized in that: The switch circuit includes transistors Q1 and Q2, wherein Q1 is an NPN transistor and Q2 is a PMOS transistor, which are used to control the power switch of the power amplifier module; Voltage divider resistors R1, R2, R4 and R5 are configured to adjust the base and gate voltages of transistors Q1 and Q2 to control the on and off of the circuit; Capacitor C1, connected between the emitter of Q1 and ground, is used to stabilize the switching action.

4. The switch circuit according to claim 3, characterized in that: When the temperature control switch detects that the ambient temperature reaches the set temperature, transistors Q1 and Q2 are connected in series and cut off, causing the output voltage VOUT to be interrupted, thereby cutting off the power supply to the power amplifier module.

5. The switch circuit according to claim 3, characterized in that: The microcontroller unit MCU has multiple input and output ports for receiving and sending control signals, monitoring and responding to the state change of the temperature control switch. The level received by the PA.1 port of the MCU becomes a low level. When the MCU detects that the level of the PA.1 port does not match the power-on instruction, it issues an alarm sound to prompt the user that the circuit state has changed; The voltage divider resistors R6 and R7 are configured to ensure that the PA.1 input level of the MCU is within the specified range and can correctly determine the high and low levels.

6. The switch circuit according to claim 3, characterized in that: The DC-DC converter U3 converts the input voltage VIN to the VCC level required by the MCU to ensure stable operation of the circuit.

7. The switch circuit according to claim 3, characterized in that: Transistors Q1 and Q2 are connected via resistors R4 and R5, R5 is connected between the gate of Q2 and the collector of Q1, and R4 is connected between the source and the gate of Q2, so as to form a control link of Q1 to Q2.

8. Aviation communication weather information terminal, characterized in that: It comprises a terminal temperature-controlled switch assembly and a switch circuit as described in any one of claims 1 to 7.

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