KR100923021B1 - Control valve integrated constant flow type and on/off type, proportional type control valve and mutual converting method - Google Patents

Abstract

The present invention provides a angular control valve integrating an on-off and a constant flow valve, and on-off and constant-flow integrated type as necessary by providing a component for implementing on-off, static flow rate and proportional control in one valve. The purpose is to provide a angular control valve that can be used as a valve or a proportional control valve. In order to implement this, each control valve is a motor, a valve for up and down reciprocation by the rotation of the motor to control the opening and closing amount of the flow path, and the first projection in a position different from the center on the one side and rotated integrally with the motor A rotating plate having a second protrusion, a first printed circuit board for turning on / off the operation of the motor at the top dead center and the bottom dead center of the valve by the first protrusion and the second protrusion of the rotary plate, and the valve A shaft, an upper guide member for guiding the shaft to be reciprocated up and down in the inside, a fixed flow rate manipulating member engaged with the side outer peripheral surface of the upper guide member and partially exposed to the outside of the case, and a cam integrally formed on the rotating plate Valve opening and closing for detecting the opening / closing amount of the valve from the output voltage according to the position that varies along the contour of its outer circumferential surface as the member rotates It comprises a detection unit.

Boiler, Flow Rate, On / Off, Proportional Control, Motor, Valve, Linear Magnet, Magnetic Sensor

Description

CONTROL VALVE INTEGRATED CONSTANT FLOW TYPE AND ON / OFF TYPE, PROPORTIONAL TYPE CONTROL VALVE AND MUTUAL CONVERTING METHOD}

The present invention relates to a square valve, and more particularly, to a square valve for controlling the supply of heating water to each room is installed in the boiler system is required for heating.

In general, the boiler system is installed in each room hot water distributor for distributing the heating water in each room that requires heating. The respective warm water distributors receive the heating water heated from the heat exchanger of the boiler through the heating water supply pipe to supply the heating water to each room, and the supplied heating water is cooled after transferring the thermal energy to each room and then transferred to the heating water return pipe. It is done. Each of the warm water distributor is provided with a control valve for controlling the flow rate of the heating water supplied to each room.

These control valves are classified into three types according to the control method: the on-off control valve, the constant flow control valve, and the proportional control valve.

The ON / OFF TYPE control valve shuts off the supply of heating water when the user reaches the set temperature, and opens the valve to supply the heating water when the temperature falls below the set temperature.

The constant flow control valve is for preventing the heating water from flowing above the flow rate set in the valve itself. If there are several rooms in a building and heating water is supplied from one boiler to several rooms, the time for each room to reach the set temperature is different due to the different lengths of piping in each room. Therefore, in order to eliminate such heating imbalance, a constant flow rate control valve is installed on the heating water pipes supplied to each room to make the set temperature attainment time uniform in each room.

On the other hand, when the flow rate supplied to the room is reduced by installing a constant flow control valve, the temperature of the boiler feed water rises. When the feed water temperature rises too much, the boiler is turned off to prevent overheating. In this way, when the boiler is turned off prematurely, the heating is not performed properly. Therefore, in order to solve the problem of the boiler being turned off, a differential pressure valve for bypassing the heating water to the return pipe side when the pressure on the heating water supply side becomes higher than a predetermined pressure is provided. It was installed between the return pipes.

However, when the differential pressure valve is installed, since the heating water of the supply pipe is bypassed immediately to the return pipe side, there is a problem in that the heating is not properly performed because sufficient heating water is not supplied to each room.

In addition, if the flow rate control valve is set once according to the piping length of each room, it is impossible for the user to change the flow rate arbitrarily. Therefore, if the length of the heating pipe is changed due to remodeling or expansion of the porch, the problem of heating imbalance again. Will occur.

In order to solve this problem, a proportional control valve has been developed. The proportional control valve is a valve that regulates the flow rate of the heating water according to the set temperature in each room to make a comfortable indoor environment.

However, the conventional proportional control valve regulates the supply flow rate of the heating water by adjusting the opening degree of the valve by receiving the flow rate data from the flow sensor. However, since there are many foreign substances in the heating water, the flow sensor is contaminated.

In addition, when the flow sensor is not used, there is a method of adjusting the opening degree of the valve by rotating the stepping motor from the heating water temperature fed back through the temperature sensor, but in this case, the stepping motor uses a DC power supply so that the transformer, There is a need for a separate configuration, such as a rectifier, the price is expensive.

On the other hand, if the proportional control valve is used, the cost increases, so that the on-off control valve and the constant flow control valve are applied together. In this case, the on-off control valve and the constant flow control valve are separately installed. There is a problem in that the structure is complicated and the cost rises.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object thereof is to provide a constant flow rate and on / off integrated angular control valve which can simplify the structure of the hot water distribution system by integrating the on / off flow rate valve. have.

In addition, by providing components for implementing on-off and fixed flow rate and proportional control in one valve, it is desired to provide each control valve that can be used as an integral valve for on-off and constant flow rate or as a proportional control valve as needed. There is a purpose.

Another object of the present invention is to provide a proportional control valve capable of proportionally controlling the flow rate of heating water supplied to each room by using an inexpensive AC motor as well as not using a flow sensor.

In order to achieve the object as described above, the control valve of claim 1 of the present invention comprises a motor, a valve which is reciprocated up and down by rotation of the motor, and the opening and closing amount of the flow path is controlled, and is integrally rotated and worked. The side has a rotary plate formed with a first projection and a second projection at a different radius from the center, and the first and second projections of the rotary plate to turn on / off the operation of the motor at the top dead center and the bottom dead center of the valve. The first printed circuit board, the shaft to which the valve is coupled, an upper guide member for guiding the shaft to be reciprocated up and down in the inside, and a constant flow rate operation that is partially engaged with the outer peripheral surface of the side of the upper guide member and partially exposed to the outside of the case. Consisting of members; Rotating the exposed portion of the flow rate control member causes the upper guide member to rotate to move the valve up and down to adjust the flow rate, and to rotate the motor to turn on / off the valve.

The angular control valve of claim 2, wherein the valve may be configured to be reciprocated up and down along the contour of the cam member outer peripheral surface of the cam shape rotated by the motor.

According to claim 3, the regulating valve of claim 3, wherein the upper portion of the rotating plate is exposed to the outside of the case, it may be configured to be integrally formed on the coaxial with the cam member.

Each control valve of claim 4, a plurality of insertion grooves are formed on the lower surface of the upper guide member; The lower guide member is fixedly installed on the lower side of the upper guide member and the thread is formed on the inner circumferential surface, and the upper portion of the lower guide member is inserted into the insertion groove and the thread is formed on the outer circumferential surface of the lower guide member when the upper guide member is rotated. And a locking rotating member having a vertically variable position and a shaft contact member inserted into an upper portion of the upper guide member to support a lower surface at an upper end of the shaft and having a vertically variable position depending on the rotation of the cam member. Can be.

The regulating valve of claim 5, wherein the first projection and the second projection are formed at radially opposite positions in a phase of 180 degrees, and the first projection and the second projection are rotated on the first printed circuit board. It can be configured that two switches in which are contacted.

The each direction control valve of claim 6 includes a motor, a valve in which the opening and closing amount of the flow path is adjusted up and down by rotation of the motor, a cam member which rotates integrally with the motor, and the outer circumferential surface thereof as the cam member rotates. And a valve opening / closing amount detecting unit for detecting the opening / closing amount of the valve from the output voltage according to the position varying along the contour.

The control valve of claim 7, wherein the valve opening and closing detection unit detects a linear magnet whose position is changed along the outer circumferential surface contour as the cam member rotates, and a magnetic flux density that is varied according to the position of the linear magnet. It consists of a magnetic sensor for controlling the rotation of the motor.

In each of the control valve of claim 8, the valve opening and closing detection unit may be configured using a variable resistor.

In each of the regulating valve of claim 9, the valve opening and closing detection unit may be configured to use a variable inductance.

The angular control valve of claim 10, wherein the motor may be configured to be a one-way rotary motor.

Angular control valve of claim 11, wherein the motor may be configured to be an alternating motor.

Claim 1 of the present invention, the switching method of the angular control valve, the angular control valve of claim 1, wherein the constant flow rate control member and the first printed circuit board is removed; Engaging the rotary plate, in which a cam-shaped cam member is integrally coupled to the shaft, of the motor; As the cam member rotates, a linear magnet that is reciprocated up and down along the outer circumferential surface and a magnetic sensor for controlling the rotation of the motor by detecting a magnetic flux density varying according to the position of the linear magnet are provided.

Claims 13 of the present invention, the switching method of the square control valve, the linear control valve of claim 7, wherein the linear magnet and the magnetic sensor is removed; A first printed circuit board is provided on a lower surface of the rotary plate to turn on / off the operation of the motor at the top dead center and the bottom dead center of the valve by the first and second projections formed at positions different in radius from the center; The upper guide member for guiding the shaft coupled to the shaft, the upper guide member for reciprocating the shaft up and down in the inside, and is engaged with the outer peripheral surface of the side of the upper guide member and is exposed to the outside of the case, the upper guide when rotating the exposed portion The member is rotated so that the valve is provided with a constant flow rate control member to move up and down.

According to each control valve of the present invention, by integrating the constant flow valve and the on-off valve into one valve, the structure can be simplified and the cost can be reduced.

In addition, since only one component is provided with components for implementing on / off, flow rate, and proportional control in one valve, it can be easily manufactured as an integral valve for on / off and flow rate or a proportional control valve to improve productivity. The manufacturing cost can be reduced by improving and achieving common parts.

In addition, it is possible to prevent the control error due to sensor contamination by not using the flow sensor for proportional control of the heating water flow rate, and to control the heating water flow rate by using a low-cost AC motor instead of the DC motor.

Referring to the accompanying drawings and the configuration and operation of the preferred embodiment of the present invention in detail.

1 is a combined perspective view showing an angular control valve according to an embodiment of the present invention, Figure 2 is a plan view of the angular control valve shown in Figure 1, Figure 3 is an exploded perspective view of the angular control valve shown in Figure 1, Figure 4 1 is a cross-sectional view of the angular control valve shown in FIG. 1, FIG. 5 is a circuit diagram schematically showing a connection state of a motor and a switch in the angular control valve shown in FIG.

1 to 4 will be described a structure in which all the flow rate, on-off and proportional control valve is implemented in one valve. However, when the valve is actually installed, only one of the control valve and the proportional control valve in which the fixed flow rate and the on-off are integrated are installed. Therefore, the method of switching the valve structure will be described later.

Each control valve of the present invention, the motor 110, the valve 450 is reciprocated up and down by the rotation of the motor 110, the opening and closing amount of the heating water flow path is adjusted, and the shaft (110a) of the motor 110 Rotating plate 120 and the first projection 120a and the second projection (120b) is formed at a position different from the center radius of rotation coupled to one side, and the first projection (120a) of the rotating plate 120 And a first printed circuit board 140 for turning on / off an operation of the motor 110 at the top dead center and the bottom dead center of the valve 450 by the second protrusion 120b, and the valve. 450 is coupled to the shaft 430 coupled to the lower end, the upper guide member 320 for reciprocating the shaft 430 up and down therein, and the outer peripheral surface of the side of the upper guide member 320 is engaged with the case ( 100) By consisting of a fixed flow rate control member 310 partly exposed to the outside, the fixed flow rate and on-off integrated control valve is implemented.

The motor 110 is preferably composed of a low cost one-way rotary motor. In addition, the motor 110 is composed of an AC motor using an AC power source. In this case, since the configuration of the transformer, rectifier, etc. is unnecessary as compared to the case of using a DC motor, there is an effect of reducing the cost.

The shaft 110a of the motor is inserted into and coupled to the cylindrical motor shaft coupling member 111, and the motor shaft coupling member 111 is coupled to the rotating plate 120 to rotate integrally.

The rotating plate 120 has a circular disk shape and the outer circumferential surface thereof is convexly convex, and is repeatedly formed along the circumference of the circumferential surface. In addition, a part of the outer surface of the rotating plate 120 is exposed to the outside of the case 100, so that even in the case of a failure of the motor 110 or the like, a person can manually operate the valve ON / OFF.

The first protrusion 120a and the second protrusion 120b protruding from one side of the rotating plate 120 are respectively formed at positions opposite to each other in a radial direction with a phase of 180 degrees from a center of the rotating plate 120 having a different radius. do.

In addition, the first printed circuit board 140 to which the first switch 141 and the second switch 142 are coupled is installed at the side of the rotating plate 120. The first switch 141 and the second switch 142 are adjacent to each other and parallel to each other, and also on the circumferential path drawn by the first protrusion 120a and the second protrusion 120b when the rotating plate 120 rotates. Is located.

As the rotating plate 120 is rotated, the first protrusion 120a contacts the first switch 141 coupled to the first printed circuit board 140, and the second protrusion is connected to the second switch 142. 120b is in contact.

Both the first switch 141 and the second switch 142 are normally closed.

4A and 5, when the "A" part of the relay 143 is electrically connected by a signal from the controller (in this case, the first switch 141 and the second switch 142 are closed because they are normally closed). In a closed circuit, AC power is supplied to the motor 110. When the rotating plate 120 is rotated by the rotation of the motor 110, the first protrusion 120a contacts the first switch 141 and the first switch 141 is opened so that the motor 110 is stopped. . In this case, the valve 450 is located at the top dead center.

After that, when the “B” portion of the relay 143 is electrically connected by the signal of the controller, since the second switch 142 is closed, a closed circuit is formed and the motor 110 rotates again. In this case, the first switch 141 is changed from the open state to the closed state.

When the rotating plate 120 rotates by 180 degrees by the rotation of the motor 110, the second protrusion 120a contacts the second switch 142 so that the second switch 142 is opened and the motor 110 is rotated. Will stop. In this case, the valve 450 is located at the bottom dead center.

On the other hand, the cam member 130 is integrally coupled to the rotary plate 120 at a position eccentric from the center of the shaft. When the motor 110 rotates, the valve 450 reciprocates up and down along the contour of the outer circumferential surface of the cam member 130. You exercise.

Hereinafter, a configuration for transmitting the rotational movement of the cam member 130 to the linear movement of the valve 450 will be described.

On the lower outer circumferential surface of the cam member 130, a cam contact member 330, which is hollowed downward, is elastically supported by the first spring 340. The cam contact member 330 serves as a connecting portion for converting the rotational movement of the cam member 130 in the vertical movement. Therefore, as the cam member 130 is rotated, the cam contact member 330 moves up and down with the valve 450. In this case, since the first spring 340 transmits the up and down reciprocating motion of the cam contact member 330 to the valve 450, a cushioning force is required, but is not necessarily in the form of a spring.

The cam contact member 330 is inserted into the upper guide member 320 and guided by the upper guide member 320 during vertical movement. The upper guide member 320 has a rim 320a protruding from the central portion of the outer circumferential surface of the cylindrical body, a gear tooth is formed on the outer circumferential surface of the rim 320a, and a plurality of insertion grooves are radially formed on the lower surface thereof. 320b).

The shaft contact member 350 is inserted into an inner lower portion of the upper guide member 320. The upper end of the shaft contact member 350 is in contact with the lower end of the first spring 340, the center portion of the lower surface of the recessed shape is in contact with the upper end of the shaft 430.

The lower guide member 420 is installed at the lower side of the upper guide member 320 and inserted into and fixed to the inside of the valve body 400 and the threaded portion is formed on the inner circumferential surface thereof.

A locking rotation member 410 is inserted into the lower guide member 420, and a threaded portion 410a formed on an outer circumferential surface of the locking rotation member 410 and a threaded portion formed on an inner circumferential surface of the lower guide member 420 are engaged. Thus, like the lead screw, the locking rotation member 410 is rotated at the same time up and down.

The upper side of the engaging rotation member 410 is inserted into the insertion groove (320b) of the upper guide member 320 a plurality of locking rotation member 410 to rotate integrally when the upper guide member 320 is rotated The locking portion 410b protrudes upward.

The shaft 430 is inserted through the inner central portion of the locking rotating member 410, and the second spring 440 is inserted into the outer side of the shaft 430 to elastically support the inner bottom surface of the locking rotating member 410. Doing.

The lower end of the shaft 430 is coupled to the valve 450 for opening and closing the opening 403 formed between the inlet 401 and the outlet 402 which is a heating water flow path, integrally with the shaft 430 The up and down position is variable.

The fixed flow rate control member 310 is a part of the body is exposed to the outside of the case 100 to be manually rotated, a gear tooth is formed on the outer peripheral surface is meshed with the edge 320a of the upper guide member 320 The upper guide member 320 is also rotated together when the constant flow rate manipulation member 310 is rotated.

The case 100 and the valve body 400 are mutually coupled by the coupling member 460.

Next, the configuration necessary for the configuration of the proportional control valve will be described.

The proportional control valve is a motor 450, a valve 450 which is reciprocated up and down by the rotation of the motor 110, the opening and closing amount of the flow path is adjusted, and the cam member 130 that rotates integrally with the motor 110 ) And a valve opening / closing amount detecting unit for detecting the opening / closing amount of the valve from an output voltage according to a position that varies along the contour of the outer circumferential surface thereof as the cam member 130 rotates.

In this case, the valve opening and closing detection unit is configured to use a linear magnet. That is, the linear member 210 is elastically supported by the third spring 230 so that the cam member 130 is always in contact with its outer circumferential surface when the cam member 130 is rotated, and the vertical position is changed along the cam contour of the cam member 130. The magnetic sensor 240 and the magnetic sensor 240 are installed adjacent to the linear magnet 210 to control the rotation of the motor 110 by detecting the magnetic flux density that varies according to the position of the linear magnet 210. ) Is coupled to the second printed circuit board 250. The upper side of the second spring 230 is supported by the cap 220.

The term 'linear magnet' refers to a magnet in which a change in magnetic flux density due to displacement shows linearity (linearity). Hereinafter, the linear magnet 210 and the magnetic sensor 240 will be described.

6 is a view showing a linear magnet applied to the present invention, which is disclosed in Korean Patent Registration No. 660564.

Referring to FIG. 6, in the linear magnet 210, the N pole and the S pole are magnetized in a sin shape diagonally from an upper left corner of the quadrangle.

In general, magnetic flux density is known to be inversely proportional to the distance squared. Therefore, in the case of a general magnet, the strength change of the magnet according to the displacement does not have linearity as a quadratic graph.

In contrast, the linear magnet 210 applied to the present invention does not show linearity in magnetic flux density of the N pole according to the displacement when magnetized in the diagonal direction indicated by the dotted line as shown in FIG. 6. When the shape of the ruler is deformed diagonally and magnetized in the sin shape, the magnetic flux density according to the displacement shows linearity.

In FIG. 6, the magnetic sensor 240 that detects a change in magnetic flux density according to the positional change of the linear magnet 210 is detected over 0-12, which is a magnet section. The linear magnet 210 is separated from the magnetic sensor 240. The constant distance d is spaced apart from the pole surface and moved in a direction parallel to the pole surface perpendicular to the pole axis. In this case, the interval of 2-10 may be adopted as the usage interval, except for the portion where the edge is slightly nonlinear in the interval of magnets 0-12.

The magnetic sensor 240 used to measure the magnetic flux density change according to the positional change of the linear magnet 210 is composed of a Hall sensor (Programmable Hall IC) widely used as one of the methods for detecting the magnetic field. In the operation of the Hall sensor, when a current flows through an electrode of a semiconductor (hall element) and a magnetic field is applied in the vertical direction, an electric potential is generated perpendicular to the direction of the current and the magnetic field. ) Position change can be detected.

FIG. 7 is a cross-sectional view illustrating a state in which the fixed flow rate and the on-off integral angular control valve are switched from the angular control valve of FIG. 4. That is, the proportional control function is removed from the respective control valves of FIG. 4. Therefore, the configuration of the linear magnet 210, the cap 220, the spring 230, the magnetic sensor 240, the second printed circuit board 250 for the proportional control is removed, the case 100 is removed Therefore, it is possible to replace with a separate dedicated case.

FIG. 8 is a cross-sectional view illustrating a state in which the respective control valves of FIG. 4 are switched to proportional control type control valves. That is, the constant flow rate function and the on-off function are removed from each control valve of FIG. 4. Accordingly, the fixed flow rate control member 310 for the fixed flow rate function is removed, and the first printed circuit board 140 is removed, including the first switch 141 and the second switch 142 for the on-off function. The case 100 may be replaced with a separate dedicated case according to the removal of the fixed flow rate manipulation member 310.

9 is an operating state diagram showing a state in which the fixed flow rate is set in each of the control valves of FIG.

Referring to FIG. 9A, the valve 450 is completely open. In this state, when the fixed flow rate control member 310 is manually rotated in order to reduce the heating water flow rate, the state of FIG. 9B is obtained. That is, while the upper guide member 320 is rotated together with the fixed flow rate control member 310 and the locking portion 410b is caught in the insertion groove 320b of the upper guide member 320 ( 410 will rotate together. Since the locking rotating member 410 is rotated and lowered by the screw part 410a, the shaft 430 and the valve 450 are lowered to close the opening 403. In this case, the degree to which the opening part 403 is closed by the valve 450 is determined by the amount which reduces the flow volume of heating water supplied to a room.

FIG. 10 is an operation state diagram illustrating a state in which valve on / off is implemented in each of the regulation valves of FIG. 7.

Referring to FIG. 10A, the valve 450 is completely open, and the first protrusion 120a of the rotating plate 120 is in contact with the first switch 141. In this state, as shown in FIG. 5, when the "B" part of the relay 143 is connected, the motor 110 rotates the rotating plate 120. When the rotating plate 120 rotates 180 degrees, as shown in 10 (b), the second protrusion 120b contacts the second switch 142 so that the motor 110 and the rotating plate 120 stop, and the valve ( 450 is completely closed.

11 is an operational state diagram showing a state in which proportional control is implemented in each of the regulating valves of FIG. 8, and FIG. 12 is a graph showing a potential difference between a flow rate and a magnetic sensor.

Referring to Figure 11 (a), the valve 450 is located at the top dead center is fully open. In this state, when it is necessary to reduce the heating water flow rate from the data such as the heating water temperature measured by the heating system, the control unit calculates a target flow rate to control each control valve to control the upper and lower positions of the valve 450. Hereinafter, a control method of each control valve will be described.

As shown in FIG. 12, the control unit has previously set a relationship between the flow rate and the voltage detected by the magnetic sensor 240 according to the position change of the linear magnet 210.

That is, in FIG. 12, when the maximum flow rate is obtained by opening the valve 450 at the respective control valves, the voltage for the position of the linear magnet 210 is set to 4.5V, and the valve 450 is completely sealed to minimize the flow rate. In the case where the voltage for the position of the linear magnet 210 is set to 0.5V, the value therebetween appears as a straight section due to the linearity of the linear magnet 210.

Therefore, the controller sets a target voltage for the target flow rate from the graph data of FIG. 12, and rotates the motor 110 to lower the valve 450 to decrease the flow rate.

In this case, since the cam member 130 rotates together with the motor 110, the linear magnet 210 is lowered along the circumferential surface of the cam member 130. When the potential difference generated by the magnetic sensor 240 reaches the target voltage according to the positional change of the linear magnet 210, the controller determines that the target flow rate has been reached and stops the operation of the motor 110. After that, the flow information is fed back to fine-tune the target flow rate.

On the other hand, the valve opening and closing detection unit has been described as using a non-contact linear magnet, it can also be configured to use a variable resistance and variable inductance instead of the linear magnet and the magnetic sensor.

First, in the case of using the variable resistor, the output voltage of the variable resistor according to the opening and closing amount of the valve is set in advance, and if the contact position of the variable resistor is changed according to the rotation of the motor 110, the opening and closing of the valve from the output voltage accordingly The amount can be detected.

In addition, in the case of using the variable inductance, the output voltage of the variable inductance according to the opening and closing amount of the valve is set in advance, and if the position of the magnet changes inside the coil according to the rotation of the motor 110, the valve from the output voltage accordingly The opening and closing amount of can be detected.

1 is a perspective view showing a combined control valve according to an embodiment of the present invention,

Figure 2 is a plan view of the angular control valve shown in Figure 1,

Figure 3 is an exploded perspective view of the angular control valve shown in Figure 1,

4 is a cross-sectional view of the angular control valve shown in FIG.

FIG. 5 is a circuit diagram schematically illustrating a connection state of a motor and a switch in each control valve illustrated in FIG. 1;

6 is a schematic view showing a linear magnet applied to the present invention,

FIG. 7 is a cross-sectional view illustrating a state in which the flow rate and on / off integral angular control valves are switched from the angular control valves of FIG. 4;

FIG. 8 is a cross-sectional view illustrating a state in which the respective control valves of FIG. 4 are switched to proportional control valves;

9 is an operational state diagram showing a state in which the fixed flow rate is set in each control valve of FIG.

FIG. 10 is an operational state diagram illustrating a state in which valve on / off is implemented in each of the regulation valves of FIG. 7;

FIG. 11 is an operational state diagram illustrating a state in which proportional control is implemented in each of the regulation valves of FIG. 8; FIG.

12 is a graph showing the relationship between the flow rate and the potential difference between the magnetic sensor.

<Description of the symbols for the main parts of the drawings>

100: case 110: motor

120: rotating plate 120a: first projection

120b: second projection 130: cam member

140: first printed circuit board 141: first switch

142: second switch 210: linear magnet

220: cap 230: third spring

240: magnetic sensor 250: second printed circuit board

310: constant flow control member 320: upper guide member

330: cam contact member 340: first spring

350: shaft contact member 410: locking rotation member

420: lower guide member 430: shaft

440: second spring 450: valve

Claims (13)

A valve for controlling the opening / closing amount of the flow path up and down by the rotation of the motor, the rotation plate integrally rotating with the motor and having a first protrusion and a second protrusion formed at a position different from the center in a radius at one side thereof; First printing for turning on / off the operation of the motor at the top dead center and the bottom dead center of the valve by the cam member integrally coupled to a position eccentric from the axis center of the rotating plate and the first and second projections of the rotating plate. A circuit board, a shaft to which the valve is coupled, an upper guide member for guiding the shaft to be reciprocated up and down in the inside, and a fixed flow rate control member which is partially engaged with the outer peripheral surface of the side of the upper guide member and exposed to the outside of the case; , A plurality of insertion grooves are formed on a lower surface of the upper guide member, and a lower guide member fixedly installed on the lower side of the upper guide member and formed with a thread on an inner circumferential surface thereof, and an upper portion of the upper guide member is inserted into the insertion groove and a thread is formed on an outer circumferential surface thereof. When the upper guide member is rotated, the locking rotation member which is changed up and down position inside the lower guide member and the upper guide member is inserted into the upper side of the shaft is supported by the lower end is in contact with the rotation of the cam member It is provided with a shaft contact member that is variable according to the vertical position, Rotating the exposed portion of the flow rate control member is the upper guide member is rotated, the valve is reciprocating up and down to adjust the flow rate, each of the control valves to turn on / off the valve when the motor is rotated. delete The angular control valve of claim 1, wherein a part of the upper end of the rotating plate is exposed to the outside of the case and is integrally formed coaxially with the cam member. delete According to claim 1, wherein the first projection and the second projection is formed at a position opposite to the radial direction in the phase of 180 degrees, the first projection and the second projection on the first printed circuit board, respectively, when the rotating plate is rotated Each control valve, characterized in that the first switch and the second switch is installed to contact. delete delete delete delete According to claim 1, wherein the motor is a one-way rotary motor, characterized in that the one-way rotary motor. The regulating valve as claimed in claim 1, wherein the motor is an AC motor. Removing the fixed flow rate control member and the first printed circuit board from each control valve of claim 1; Coupling the rotating plate having the cam-like cam member integrally coupled to the shaft of the motor; and And installing a magnetic sensor for controlling the rotation of the motor by detecting a linear magnet that is reciprocated up and down along the outer circumferential surface of the cam member and a magnetic flux density that varies according to the position of the linear magnet as the cam member rotates. Method for converting the constant flow rate and on-off integral angular control valve to a proportional control angular control valve. delete

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