CN2399240Y

CN2399240Y - Water temp controlling water heating fan

Info

Publication number: CN2399240Y
Application number: CN 99254123
Authority: CN
Inventors: 方志刚
Original assignee: NANFENG AUTOMOBILE EQUIPMENT C
Current assignee: NANFENG AUTOMOBILE EQUIPMENT C
Priority date: 1999-11-16
Filing date: 1999-11-16
Publication date: 2000-10-04
Anticipated expiration: 2009-11-16

Abstract

The utility model relates to a water temperature controlling type water heating warm air blower, which at least comprises a power supply and a motor of a radiator. The utility model also comprises a water temperature control circuit, and the control circuit is at least composed of a temperature setter, a water temperature sensor, a comparator, a driver, an action element, and a contact switch. The reversal end of the water temperature sensor is connected with the negative end of the comparator; the positive electrode of the comparator is connected to the temperature setter; the output end of the comparator is connected with the input end of the driver; the output end of the driver is connected tot the action element; the action element is connected with the contact switch. By the structure, the effect that the operation of a heat radiation fan can be controlled by the water temperature can be reached.

Description

The water temp controlling type water heating fan

The utility model relates to a kind of warming device, refers to a kind of warming device by the work of water temperature control cooling fan especially.

Along with the continuous development of the modern life, the status of automobile in people's life is more and more important, uses also more and more widely.It provides a lot of convenience not only for our life, and has accelerated our rhythm of life and work efficiency.Therefore, provide more comfortable superior environment inside car more and more to be subject to people's attention to the user.Existing automobile generally can provide warm braw, and be absolutely necessary this winter in cold.Shown in Figure 1A, Warming device for car generally adopts the cooling water expansion tank of driving engine 52 as thermal source, by forced draft blower 51 heat is sent into railway carriage again, reaches heating effect, and reduces the temperature of engine cooling water simultaneously.Wherein, coolant outlet pipe 53 and return water pipe 54 are used for the circulation of cooling water expansion tank.The principle of work of its heat abstractor 51 needs only one and opens heating installation switch 11 as shown in Figure 1B, and automobile storage battery 10 will drive radiator fan 12 and rotate, and gives heating in the car.But, since winter the external world temperature lower, when automobile just starts or driving engine when being in the slow running state, Engine Coolant Temperature is lower, makes can only blow out cold wind, whole compartment heating effect variation in the Warming device for car.Same because the use of hot-water heating heating installation will make Engine Coolant Temperature be even lower, and driving engine is in supercooled state, the wearing and tearing of increase driving engine and the quantity discharged of driving engine pernicious gas and other pollutants, thereby economic loss that causes and atmospheric contamination.

For addressing the above problem, the purpose of this utility model just is: a kind of water temp controlling type water heating fan is provided, and it can protect driving engine, reduces engine wear and discharging, reduces atmospheric contamination; Improve the automation and the traveling comfort of heating arrangement, can provide very comfortable, superior environment to the user; Easy to use, speed of response is fast, and reliable operation, life-span are long, have wide range of applications.

The utility model is achieved in that a kind of water temp controlling type water heating fan, at least comprise power supply, radiator motor, it is characterized in that: it also includes a water temperature controling circuit, and this control circuit is made of a temperature setting device, a cooling-water temperature sensor, a comparator, an actuator, a power element and a contact switch at least; The backward end of this cooling-water temperature sensor links to each other with the comparator negative terminal, and this comparator positive pole is connected to temperature setting device, and the mouth of this comparator links to each other with driver input end, and driver output end is connected to power element, and power element links to each other with contact switch.

Described cooling-water temperature sensor can be a diode.Described temperature setting device can be a potential device.Described comparator can be an op amp.Described actuator can be a crystal triode.Described power element can be a relay.

Water temp controlling type water heating fan provided by the utility model has following effect: 1) can protect driving engine, prevent that driving engine from moving under supercooled state, thereby reduce engine wear and discharging, reduce atmospheric contamination.2) can prevent from from heating pipeline, to blow out cold wind, improve the automation and the traveling comfort of heating arrangement, provide more comfortable, superior environment to the user.3) this device all adopts electronic component control, so speed of response is fast, only needs several seconds; Reliable operation, life-span are long, and can be widely used in power actuated vehicle heating arrangement and other hot-water heating cooling fan device.4) its unlatching temperature can be by the potential device in the control circuit according to different automobile types, driving engine regulated at will, and is extremely easy to use, and overall consumption of current is very low.

Below in conjunction with drawings and the specific embodiments the utility model is further described in more detail.

Figure 1A is the structural representation of existing Water heating for vehicle warming device;

Figure 1B is the circuit diagram of existing heat abstractor;

Fig. 2 is a circuit block diagram of the present utility model;

Fig. 3 is an embodiment circuit diagram of the present utility model.

See also shown in Figure 2ly, the utility model comprises power supply 20, temperature setting device 21, cooling-water temperature sensor 22, comparator 23, actuator 24, power element 25 and contact switch 26 at least.Wherein, power supply 20 is responsible for the The whole control circuit supply, and temperature setting device 21 is used to preestablish a benchmark water temperature.When starting the heating installation switch, cooling-water temperature sensor 22 is surveyed current water temperature, then water temperature value is sent in the comparator 23, and the value that this water temperature value and temperature setting device 21 set compares in comparator 23.If current water temperature is higher than set water temperature, then comparator 23 sends signal and makes actuator 24 work, and actuator 24 drives power element 25, makes contact switch 26 closures, gives heating in the car thereby start the radiator motor.Otherwise,, then do not start the radiator motor if current water temperature is lower than set water temperature.

As shown in Figure 3, Fig. 3 is a preferred embodiment circuit diagram of the present utility model.After opening heating installation switch 31, automobile storage battery 30 is the control circuit power supply.This moment by temperature sensor 32 water temperature detections, temperature sensor is a diode in the utility model, detect water temperature after, sensor 32 is sent into electric signal the reverse input end of comparator 38.Simultaneously by regulate an accurate multiturn potentiometer 33 in advance comparator 38 in the same way input end set a comparative voltage, be used for comparing with the voltage of reverse input end.Because sensor 32 is determined its junction voltage of back and is descended with the temperature rising in the operation point, so when water temperature signal is lower than setting voltage, the output signal of comparator 38 is a high level, be that the water temperature actual temperature is higher than design temperature, this output signal amplifies output through amplifier 34, makes relay 35 adhesives, thereby makes open contact 36 closures, the final radiator motor 37 that starts rotates, and gives heating in the car.Otherwise when water temperature was lower than to fixed temperature, open contact 36 disconnected, and radiator motor 37 quits work, and no longer gives the engine cooling water for cooling.This device can be installed on the control desk of truck conspicuity marking or according to different automobile types and install in position.

The above only is a preferred embodiment of the present utility model, is not to be used to limit the utility model.It can be widely used in the self-propelled vehicle heating arrangement of other various different automobile types, driving engine, also can be used as one independently accessory be installed in the various hot-water heating cooling fan devices.

Claims

1, a kind of water temp controlling type water heating fan, at least comprise power supply, radiator motor, it is characterized in that: it also includes a water temperature controling circuit, and this control circuit is made of a temperature setting device, a cooling-water temperature sensor, a comparator, an actuator, a power element and a contact switch at least; The backward end of this cooling-water temperature sensor links to each other with the comparator negative terminal, and this comparator positive pole is connected to temperature setting device, and the mouth of this comparator links to each other with driver input end, and driver output end is connected to power element, and power element links to each other with contact switch.

2, water temp controlling type water heating fan according to claim 1, it is characterized in that: described cooling-water temperature sensor can be a diode.

3, water temp controlling type water heating fan according to claim 1, it is characterized in that: described temperature setting device can be a potential device.

4, water temp controlling type water heating fan according to claim 1, it is characterized in that: described comparator can be an op amp.

5, water temp controlling type water heating fan according to claim 1, it is characterized in that: described actuator can be a crystal triode.

6, water temp controlling type water heating fan according to claim 1, it is characterized in that: described power element can be a relay.