Intelligent temperature control and heat dissipation device for recreational vehicle

Abstract

The utility model discloses a house car intelligence temperature control heat abstractor, including intelligent temperature controller, temperature sensor, heat abstractor fan and power, through preset value environmental temperature is 42 degree automatic triggering heat abstractor fan start, through the air -guiding structure of shell realizes quick heat dissipation, when environmental temperature falls to 38 degree, and automatically cuts off heat abstractor fan power, and continues through the air -guiding structure natural heat dissipation, effective realization self -adaptation, self -triggering when environmental temperature is suitable, cut off circuit, realized the intelligent, humanized application, also take into account energy -conserving environmental protection simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of RV technology, and relates to intelligent heat dissipation for RVs, specifically to an intelligent temperature control and heat dissipation device for RVs. Background Technology

[0002] As a mobile vehicle that combines living and travel, the comfort of the interior living environment is of paramount importance. Especially when parked in summer or in high-temperature areas, the interior temperature can rise rapidly due to direct sunlight and the relatively enclosed nature of the vehicle, causing stuffiness and discomfort, and even affecting the facilities inside the vehicle and the health of the user.

[0003] Currently, RV cooling methods are relatively traditional and limited, typically falling into two categories: manual window opening and closing for ventilation, and manual fan operation. For manual window opening and closing, users need to manually open or close the RV's windows and sunroofs based on their own judgment. This method relies entirely on the user's subjective judgment and manual operation, and cannot automatically adjust when the user leaves the vehicle or fails to notice temperature changes, resulting in poor convenience and low cooling efficiency. For manual fan operation, exhaust fans or recirculation fans are installed inside the RV, but their operation also requires manual control of the power switch. While this method actively promotes air circulation compared to simply opening windows, it still suffers from the limitation of manual intervention. Users may forget to turn off the fan when leaving the vehicle, resulting in wasted energy; they may also fail to pre-start the cooling system before entering the vehicle, still having to endure a period of high temperatures.

[0004] Therefore, existing RV cooling systems generally suffer from low levels of intelligence, reliance on manual operation, and an inability to achieve unattended automatic operation. Their operating logic is passive and reactive, unable to sense changes in ambient temperature in real time and respond intelligently. This fails to provide users with a convenient experience and makes it difficult to achieve the optimal balance between comfort and energy efficiency. Utility Model Content

[0005] To address the aforementioned issues, the main objective of this invention is to design an intelligent temperature control and heat dissipation device for RVs. This device uses a temperature sensor to detect temperature and automatically trigger the fan to start and stop, thus solving the problems of insufficient convenience and lack of intelligence in RV heat dissipation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A smart temperature control and heat dissipation device for RVs includes a smart temperature controller, a temperature sensor, a heat dissipation fan, and a power supply for powering the smart temperature controller. The intelligent temperature controller includes an input port, an output port, and a probe port. The input port is connected to the power supply, the output port is connected to the cooling fan, and the probe port is connected to the temperature sensor. Temperature sensor, located inside the vehicle body; The cooling fan includes a housing and a radiator. The upper part of the housing is closed, and a vent is provided on one side of the housing. The vent is connected to the radiator to form an air guiding structure. The cooling fan is embedded in the vehicle body, and the vent is located on the outside of the vehicle body, while the radiator is located inside the vehicle body.

[0007] As a further description of this utility model, the power supply is set to a 12V DC power supply, including positive and negative terminals, which are respectively connected to the input port of the intelligent temperature controller to supply power to the intelligent temperature controller.

[0008] As a further description of this utility model, the radiator is configured as a fan, and the airflow of the fan is directed towards the interior of the vehicle body.

[0009] As a further description of this utility model, the intelligent thermostat is equipped with a temperature control switch, which includes a timer, a resistor, a capacitor, a diode, and a relay. The timer and the relay trigger the temperature control switch, and the on / off state of the relay controls the fan.

[0010] As a further description of this utility model, the timer is set to an NE555 chip; When the temperature detected by the temperature sensor is greater than 42°C, the NE555 chip outputs a high level, the relay is activated, and the fan starts. When the temperature detected by the temperature sensor is less than 38°C, the NE555 chip outputs a low level, the relay is released, and the fan stops.

[0011] Compared with the prior art, the technical effects of this utility model are as follows: This utility model provides an intelligent temperature control and heat dissipation device for RVs, including an intelligent temperature controller, a temperature sensor, a cooling fan, and a power supply. The cooling fan is automatically triggered to start when the preset ambient temperature is 42°C, and rapid heat dissipation is achieved through the air guide structure of the outer shell. When the ambient temperature drops to 38°C, the power supply to the cooling fan is automatically cut off, and natural heat dissipation continues through the air guide structure. It effectively achieves self-adaptation and self-triggering, while cutting off the circuit when the ambient temperature is suitable, realizing intelligent and user-friendly application, while also taking into account energy saving and environmental protection. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention (including a side view of the intelligent temperature controller). Figure 2 This is a three-dimensional structural view of the cooling fan of this utility model; Figure 3 This is a structural view of the fan of this utility model; Figure 4 This is a structural view of the intelligent temperature controller of this utility model; Figure 5This is a schematic diagram of the temperature control switch circuit of this utility model; Figure 6 This is a schematic diagram of the cooling fan control process of this utility model.

[0013] In the diagram, 1. Intelligent temperature controller, 11. Input port, 12. Output port, 13. Probe port, 2. Temperature sensor, 3. Cooling fan, 31. Housing, 32. Heat sink, 33. Vent, 4. Power supply. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings: In one embodiment of this utility model, a smart temperature control and heat dissipation device for RVs is disclosed, such as... Figure 1-6 As shown, the heat dissipation device includes an intelligent temperature controller 1, a temperature sensor 2, a cooling fan 3, and a power supply 4 for powering the intelligent temperature controller 1. The cooling fan 3 is automatically triggered by the temperature sensor 2 to achieve heat dissipation inside the vehicle body.

[0015] Specifically, in this embodiment, the intelligent temperature controller 1 includes an input port 11, an output port 12, and a probe port 13. The input port 11 is connected to the power supply 4, the output port 12 is connected to the cooling fan 3, and the probe port 13 is connected to the temperature sensor 2. The temperature sensor 2 is located inside the vehicle body and is used to monitor the actual temperature inside the vehicle body and input the temperature to the intelligent temperature controller 1 through the probe port 13. The cooling fan 3 includes a housing 31 and a radiator 32. The upper part of the housing 31 is closed, and a vent 33 is provided on one side of the housing 31. The vent 33 is connected to the radiator 32 to form an air guiding structure. The cooling fan 3 is embedded in the vehicle body, and the vent 33 is located outside the vehicle body, while the radiator 32 is located inside the vehicle body. To meet the requirements, the connection between the housing 31 and the vehicle body can also be sealed to improve the airtightness of the vehicle.

[0016] In this embodiment, the power supply 4 is a 12V DC power supply, including positive and negative terminals, which are respectively connected to the input port 11 of the intelligent temperature controller 1 to supply power to the intelligent temperature controller 1. The radiator 32 is a fan, with the fan's airflow directed towards the interior of the vehicle body. The intelligent temperature controller 1 is equipped with a temperature control switch (capable of automatically controlling the circuit's on / off state according to temperature), which includes a timer, resistor, capacitor, diode, and relay. The timer and relay trigger the temperature control switch, and the on / off state of the relay controls the fan's switching on and off.

[0017] To ensure better implementation of this utility model, the timer is set to an NE555 chip; when the temperature detected by temperature sensor 2 is >42°, the NE555 chip outputs a high level, the relay is activated, and the fan starts; when the temperature detected by temperature sensor 2 is <38°, the NE555 chip outputs a low level, the relay is released, and the fan stops.

[0018] In this embodiment, electrical equipment within the space requiring heat dissipation is more energy-efficient and less prone to damage in ambient temperatures below 40°C. Furthermore, due to temperature variations in a semi-enclosed environment, setting the start-up and shutdown temperatures to 4°C in actual environmental testing better reflects real-world application scenarios and avoids repeated on / off cycles. Therefore, the fan starts when the temperature is >42°C and stops when the temperature is <38°C.

[0019] It should also be noted that, such as Figure 5 As shown, the entire temperature control switch circuit is powered by a 12V DC power supply. The positive terminal of the power supply is connected to pin 8 (Vcc) and pin 4 (reset terminal) of the NE555 chip; the negative terminal of the power supply serves as the common ground of the circuit, and is connected to pin 1 (GND) of the NE555 chip, the negative terminal of capacitor C2, and one end of resistor R1.

[0020] Pin 5 (control voltage terminal) of the NE555 chip is grounded through capacitor C2 to filter high-frequency interference and stabilize the threshold voltage of the internal comparator. Pin 6 (threshold terminal) of the NE555 chip is shorted to pin 2 (trigger terminal) and connected to the intermediate node of a voltage divider circuit consisting of a thermistor Rt and an adjustable resistor RP. The specific connection of this voltage divider circuit is: positive power supply → adjustable resistor RP → thermistor Rt → resistor R1 → ground (GND). By adjusting RP, the temperature trigger threshold can be set.

[0021] Pin 7 of the NE555 chip is connected to the positive terminal of the power supply through resistor R2 and grounded through capacitor C1. Pin 3 (output terminal) of the NE555 chip is connected to one end of the relay K1 coil through diode D1. The other end of the relay K1 coil is connected to the negative terminal of the power supply (GND). Diode D2 is connected in reverse parallel across the two ends of the relay K1 coil (negative terminal connected to the NE555 output terminal, positive terminal connected to the negative power supply GND) to absorb the reverse electromotive force generated when the coil is de-energized, protecting the NE555 chip from breakdown.

[0022] The fan's power supply is independently controlled by the normally open contact (NO) of relay K1: Power supply positive terminal → normally open contact (NO) of relay K1 → fan positive terminal → fan negative terminal → power supply negative terminal (GND). When the temperature exceeds the threshold, the resistance of the thermistor Rt changes, causing the voltage at pins 2 and 6 to reach the threshold. The NE555 outputs a high level, the relay is energized, and the normally open contact closes, thus connecting the fan power supply and starting the fan to operate.

[0023] With the above-mentioned heat dissipation device, when the ambient temperature is higher than 42°C, the temperature control switch automatically supplies power to the cooling fan, and the cooling fan starts to run under control. The cooling fan runs continuously to dissipate heat. When the ambient temperature is lower than 38°C, the temperature control switch automatically cuts off power to the cooling fan, and the cooling fan stops running, continuing to dissipate heat naturally, thereby continuously meeting the temperature requirements inside the vehicle body.

[0024] The technical solution of this utility model has the following advantages over the prior art: 1. This utility model uses a cooling fan in conjunction with an intelligent temperature controller and a temperature sensor, resulting in a small size and higher air exchange efficiency; 2. The intelligent temperature controller of this utility model uses the NE555 chip integrated circuit as the control core, which is suitable for realizing a single threshold comparison, greatly reducing the cost and complexity of the control device, and has a stable working state and strong anti-interference ability. 3. This utility model sets start and stop thresholds, with a 42° start and a 38° stop, forming a 4° backtracking, which effectively avoids the fan repeatedly starting, stopping, and starting near the critical temperature point, protecting the fan and relay contacts, extending the equipment life, and providing a more comfortable experience; 4. This utility model adopts a closed shell and a ventilation structure with one side, and is installed in the vehicle body in an embedded form to form a reasonable air duct with "ventilation opening on the outside and radiator inside the vehicle". The exhaust design ensures heat dissipation efficiency.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A smart temperature control and heat dissipation device for RVs, characterized in that, This includes a smart thermostat, a temperature sensor, a cooling fan, and a power supply for powering the smart thermostat. The intelligent temperature controller includes an input port, an output port, and a probe port. The input port is connected to the power supply, the output port is connected to the cooling fan, and the probe port is connected to the temperature sensor. Temperature sensor, located inside the vehicle body; The cooling fan includes a housing and a radiator. The upper part of the housing is closed, and a vent is provided on one side of the housing. The vent is connected to the radiator to form an air guiding structure. The cooling fan is embedded in the vehicle body, and the vent is located on the outside of the vehicle body, while the radiator is located inside the vehicle body.

2. The intelligent temperature control and heat dissipation device for RVs according to claim 1, characterized in that: The power supply is set to 12V DC, including positive and negative terminals, which are connected to the input port of the smart thermostat to power the smart thermostat.

3. The intelligent temperature control and heat dissipation device for RVs according to claim 2, characterized in that: The radiator is a fan, and the fan directs the airflow towards the interior of the vehicle body.

4. The intelligent temperature control and heat dissipation device for RVs according to claim 3, characterized in that: The intelligent thermostat is equipped with a temperature control switch, which includes a timer, resistor, capacitor, diode, and relay. The timer and relay trigger the temperature control switch, and the on / off state of the relay controls the fan's operation.

5. The intelligent temperature control and heat dissipation device for RVs according to claim 4, characterized in that: The timer is set to the NE555 chip; When the temperature detected by the temperature sensor is greater than 42°C, the NE555 chip outputs a high level, the relay is activated, and the fan starts. When the temperature detected by the temperature sensor is less than 38°C, the NE555 chip outputs a low level, the relay is released, and the fan stops.

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