CN2806926Y - Safety remote transmission controller for temperature control valve - Google Patents

Abstract

The utility model relates to a safety remote transmission controller for a temperature control valve, which belongs to the technical field of automatic control of the ventilation and the heating of a building trade. The utility model is composed of a piston column with a magnet, a magnetic loop, a valve bonnet, a motor, a convex piece, a spacer sleeve, a valve body, a light current control system, etc. An actuating mechanism is arranged in the spacer sleeve by the piston column with the magnet, and the spacer sleeve is connected with the valve body through the valve bonnet. The magnetic loop is sheathed at the outer side of the spacer sleeve, and is inlaid at the lower end of the spacer sleeve. The upper end of the spacer sleeve is provided with a screw nut, which is dynamically connected with a screw sleeve which is arranged on an output shaft of a stepper motor. The screw sleeve is tightly matched with an output shaft of the motor. A site temperature sensor is connected into a control box, and the inner part of the box is provided with a changer which causes commercial power to be changed into low tension direct current. Therefore, a control motor of the temperature sensor is used for controlling the opening or the closing of the valve.

Description

The safe teletransmission control gear of thermostat valve

Technical field

A kind of safe teletransmission control gear of thermostat valve is made up of temperature transducer and controlled valve, can install respectively at a distance, and with the keying of safety voltage control valve.The ventilation and heating automatic control technology field that belongs to construction industry.

Technical background

Heat-operated valve has been widely used in air-conditioning and winter heating system.Development along with technology, occurred again now, with every resident family is a unit, carry out the pattern of individual heating, this pattern can be utilized the thermal source of existing central heating, can be unit with the each household also, the method heating water chamber of electricity consumption or burning combustion gas, make hot water in indoor circulation, and adopt hot channel to give to be embedded in underfloor method earlier and realize heating, be called " underground heat ".This method all is the import and export with the hot channel in each room in design, focuses near the hot water tank, is connected with the hot water tank outlet by valve.So in use, as the temperature that the user will regulate certain room, owing to regulate in the room at the scene, can only remove to transfer corresponding valve to the hot water tank next door, feel very inconvenient, the effect of adjusting is also unsatisfactory.In this system, some design adopts the electric valve of idle call to come strange land control, and this valve adopts the Ac of 220V as power, be installed on the pipeline, when AC motor generation leakage of current, will make whole pipe charged, very dangerous concerning the user; This structure is owing to adopt high-speed electric expreess locomotive as power, and with designing the stroke that the upper and lower limit bit switch comes control valve, it is stuck in intermeshing that therefore motor and reducing gear often take place, and causes burn-down of electric motor; The control valve of another band thermometer bulb, be to twine electric heating wire in the outside of thermometer bulb, the unlatching that the method that heats thermometer bulb with switching on is come control valve, when valve is in closed condition, electric heating wire is always heating to thermometer bulb, power supply also is to use the electric main of 220V, and this method is not only dangerous, and wastes energy.

Summary of the invention

The purpose of this utility model, provide a kind of safe teletransmission control gear of thermostat valve, with stepper motor or direct current generator as power, with the following voltage of direct current 12V as power supply, after setting needed temperature value at indoor scene, just can control the keying of the valve of temperature control at a distance automatically, reach the purpose of constant indoor temperature.Owing to adopt the Dc low voltage power supply of safety and the motor of low speed, move as safe as a house reliable; System adopts microprocessor MCU control, and action puts in place accurately, valve opening or close after, block power supply automatically.

The technical solution of the utility model is achieved like this: a temperature transducer that temperature can be set is arranged at each indoor scene, the temperature analog signal that sensor is exported, concentrate and be connected near the control box of hot water tank, the converter that civil power is become low-voltage DC is arranged in the case, low-voltage DC provides power supply for control system on the one hand, provides power supply for motor on the other hand; A slice or several microprocessor MCU handle temperature analog signal, and the operation of output signal control motor then after valve puts in place, is controlled motor again and shut down; Motor available step motor also can adopt direct current generator, and the corresponding control program that only need revise MCU with different motors gets final product; During machine operation, screw thread on the output shaft drives the nut sleeve motion that magnet ring is housed, there is a convex body to withstand in the groove on the valve cover on the nut sleeve, make nut sleeve to move up and down, the moving up and down of nut of magnet ring is housed, the magnet that has driven in the valve body is made corresponding sports, drives the downward throttle down of piston when magnet moves downward.

The beneficial effects of the utility model are that system works adopts the controlling schemes of microprocessor in the security context of low voltage; Saved the upper and lower limit bit switch, made valve body structure very simple, moved accurately, " card " dead phenomenon can not take place in the transmission process.

Description of drawings

Fig. 1 is a system construction drawing

Fig. 2 is valve drive mechanism figure

Fig. 3 is an electric control schematic diagram

Among Fig. 2, the piston column of magnet (1), magnet ring (2), cover (3), thread bush (4), valve bonnet (5), motor (6), nut (7), male member (8), separation sleeve (9), valve body (10).Other structure of valve body is not drawn.

Among Fig. 3, the power supply of microprocessor MCU is connected with the 5V voltage of voltage changer output, the IO input end links to each other with the output contact that temperature is provided with sensor WJ, the IO output terminal is connected with inverting amplifier D, and the output terminal of inverting amplifier is connected with stepper motor DC (6) again.

Embodiment

The utility model is embodiment with system's control step motor, further specifies.Accompanying drawing 1 is system's signal of present embodiment.Temperature is provided with sensor WJ and is installed in indoor each room, and this temperature of passing through that the room owner can follow one's inclinations at any time is provided with sensor WJ, adjusts and be provided with room temperature.This temperature is provided with sensor WJ and forms with the temperature-sensing element (device) of two contacts output by one, two contacts are connected with the two IO input ports of a long way off microprocessor MCU, by temperature the temperature analog signal that sensor WJ sends here is set, after the MCU process in order, and be connected with inverting amplifier D, at the output terminal of inverting amplifier D, by the just commentaries on classics of stepper motor DC (6) needed time-oriented sequential control stepper motor DC (6), reverse, stop, having formed light-current system thus; 5V voltage after voltage changer is handled is sent to microprocessor MCU, and 12V voltage is sent to stepper motor DC (6).Reliable for the analog temperature signal that makes input, be provided with in temperature on two contacts of sensor WJ and insert resistance R 474 and capacitor C 2.2 μ (see figure 3)s respectively.Drive the last or following motion of piston column (1) of magnet ring (2), magnet carrier during stepper motor DC (6) work, reach the purpose of unlatching, throttle down.In the accompanying drawing 2, actuator is installed in separation sleeve (9) the inside by the piston column (1) of magnet carrier, and separation sleeve (9) is connected with valve body (10) by valve gap, because the effect of separation sleeve (9), the water system in the valve is isolated from the outside fully; The piston column of magnet carrier (1) is when moving down, and will promote spool action throttle down, when the piston column (1) of magnet carrier when moving up, and valve open; The outside of separation sleeve (9) is with magnet ring (2), magnet ring (2) is embedded in the lower end of cover (3), the upper end of cover (3) is equipped with nut (7) again, and nut (7) dynamically is connected with thread bush (4) on stepper motor DC (6) output shaft, the output shaft drive fit of thread bush (4) and motor D C (6); The male member (8) that a column is arranged on the outer of cover (3), the groove on male member (8) and the valve bonnet (5) can be done upper and lower motion movingly.Entire mechanism all is enclosed in the valve bonnet (5).When the temperature in the room surpasses or is lower than temperature the set temperature of sensor WJ is set, temperature is provided with sensor WJ will send an analogue signal, the analogue signal of for example sending is that temperature is too high, after handling, microprocessor MCU sends pulse: the carrying out that 0001-0010-0100-1000 goes round and begins again like this by the step operation, and the step number of follow procedure defined, by inverting amplifier D pushing motor DC (6) reverse turn step by step, when the step number of rotating reaches the step number of regulation, MCU outputting parking signal, motor stops operating.When motor rotates, the nut (7) that thread bush on its output shaft (4) drives on the cover (3) rotates, because nut (7) is an one with cover (3), again because the male member (8) on the cover (3), institute is spacing by the groove on the valve bonnet (5), when therefore motor D C (6) rotates, cover (3) can only move up and down, when motor D C (6) reverses, cover (3) drives magnet ring (2) and moves downward, the piston column (1) that magnet ring (2) drives the magnet carrier in the separation sleeve (9) again moves downward, and makes spool move throttle down downwards.After the valve closing, temperature in the room descends and when being lower than setting temperature, motor D C (6) just changes valve open.

Claims (4)

1. the safe teletransmission control gear of a thermostat valve, it is characterized in that: the piston column of magnet carrier (1) is installed in separation sleeve (9) the inside, separation sleeve (9) is connected with valve body (10) by valve gap, the piston column of magnet carrier (1) is when moving down, promote spool action throttle down, when the piston column (1) of magnet carrier when moving up, valve open; The outside of separation sleeve (9) is with magnet ring (2), magnet ring (2) is embedded in the lower end of cover (3), the upper end of cover (3) is equipped with nut (7) again, and nut (7) dynamically is connected with thread bush (4) on the stepper motor output shaft, the output shaft drive fit of thread bush (4) and motor D C (6); The male member (8) that a column is arranged on the outer of cover (3), the groove on male member (8) and the valve bonnet (5) can be done upper and lower motion movingly, and entire mechanism is enclosed in the valve bonnet (5); The sensor WJ of temperature can be set, and the temperature analog signal of output is concentrated to be connected in the control box, and the converter and the light-current system that civil power are become low-voltage DC are arranged in the case.

2. the safe teletransmission control gear of thermostat valve according to claim 1, it is characterized in that light-current system, by a slice or several microprocessor MCU, to handling from the temperature analog signal of temperature transducer WJ, the IO output terminal of microprocessor MCU is connected with inverting amplifier D, the output terminal of inverting amplifier D connects stepper motor DC (6).

3. the safe teletransmission control gear of thermostat valve according to claim 1 is characterized in that being provided with on two contacts of sensor WJ of temperature, is connected to resistance R 474 and capacitor C 2.2 μ respectively.

4. the safe teletransmission control gear of thermostat valve according to claim 1 is characterized in that motor available step motor, also can adopt direct current generator.

Images