KR20060094267A - Three way valve - Google Patents

Abstract

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-way valve for a gas boiler, and in particular, a separate actuator is formed between a ball valve and a drive motor, and first and second annular ribs having a stepped portion at predetermined positions on upper and lower surfaces of the actuator, respectively. Is formed to protrude, and the first and second switches made of the fixed terminal and the movable terminal are in contact with the outer periphery of the annular rib, so that the ball valve and the actuator are rotated by the stepped portion when the drive motor rotates. The switch is turned off and the drive motor stops as the movable terminal constituting the switch is separated from the fixed terminal.Through this, the three-way side is quickly switched during the switching of the heating mode and the hot water mode, thereby further maximizing user convenience and reliability. It relates to a three-way valve for a gas boiler.

Gas boiler, three-way valve, valve body, ball valve, actuator, drive motor, controller,

Description

Three way valve for gas boiler

1 is a conceptual view showing a typical gas boiler.

Figure 2 is a conceptual diagram showing an operation state of the conventional trilateral.

Figure 3 is a perspective view showing three sides of the gas boiler of the present invention.

Figure 4 is a cross-sectional view showing a three-sided gas boiler of the present invention.

Figure 5 is a block diagram showing a drive motor control means applied to the present invention.

6 is a view showing the operation state of the ball valve and the actuator according to the user's control panel operation.

Explanation of symbols for main parts of the drawings

20: lower case, 21: central axis,

22: valve body, 23: circulating water inlet,

24: heating water supply port, 25: hot water supply port,

26: ball valve, 31: drive motor,

40: actuator, 43, 44: annular rib,

45,46: stepped portion, 47,48: switch,

60: control unit, 61: control panel,

The present invention relates to a three-way valve for a gas boiler, and in particular, when the ball valve and the actuator rotate by the driving motor, the movable terminal constituting the switch is separated from the fixed terminal by the stepped portion, and the corresponding switch is turned off. It is to stop the operation, and through this, the three-way changeover when switching between heating mode and hot water mode is related to the three-way for gas boiler to maximize the convenience and reliability of the user even more.

In general, a gas boiler, which combines hot water and heating, is circulated by the pump 4 to supply water from the water tank 2, as shown in FIG. 1, and is heated from the main heat exchanger 5 to the heating burner 6. The heated water is selectively supplied to the hot water heat exchanger 7 or the indoor heating pipe 8 by the control operation of the three-way valve 10 to perform hot water supply and heating.

At this time, the heated water supplied to the hot water heat exchanger 7 and the indoor heating pipe 8 is circulated again after performing heat exchange for hot water supply and heating, and is supplied to the main heat exchanger 5 by the pump 4. It will be a circular operation.

In the gas boiler, the three-way valve 10 serves to selectively supply the water hardened by the main heat exchanger 5 to the hot water heat exchanger 7 or the indoor heating pipe 8 by the user's selection.

More specifically, as shown in FIG. 5, the hot water supply port connected to the hot water heat exchanger 7 and the heating water supply port connected to the indoor heating pipe 8 are formed to face each other at a 180 ° interval on the valve body. When the opening and closing ball 12 rotates by 180 ° by the user's control operation to block the hot water supply port, heated water is supplied to the indoor heating pipe 8, and the opening and closing ball 12 is rotated by 180 ° again. When moving to block the heating water supply port is controlled to supply the heated water to the hot water heat exchanger (7).

At this time, the rotation operation of the opening and closing ball 12 is controlled to rotate by the drive motor (M).

However, the three-way valve is the opening and closing ball 12 when the user operates the microcomputer to operate the hot water in the state of supplying the heating water by blocking the hot water supply opening the opening and closing ball 12 blocks the heating water supply opening and In order to open the hot water supply opening, a 180 ° rotation must be performed, and during the 180 ° rotation operation of the opening / closing ball 12, there is a problem in that hot water is not supplied.

That is, the user feels inconvenience in use because the hot water is supplied only after a predetermined time elapses after the control operation by the microcomputer rotates 180 ° and the hot water is not supplied.

On the other hand, when using the hot water in the three-way (10) to supply the heating water, the opening and closing ball 12 is rotated 180 ° again by the control operation by the microcomputer to block the hot water supply opening and open the heating supply opening The heating water is supplied to the user, and the user can also receive the heating water only after a certain period of time when the opening and closing ball rotates 180 ° after the control operation by the microcomputer.

Accordingly, the present invention for solving the above problems is to form a separate actuator between the ball valve and the drive motor, protruding the first and second annular ribs having a stepped portion at predetermined positions on the upper and lower surfaces of the actuator, respectively. And the first and second switches made of the fixed terminal and the movable terminal are in contact with the outer circumference of the annular rib, so that the switch is formed by the stepped portion when the ball valve and the actuator rotate by the driving motor. As the movable terminal is separated from the fixed terminal, the corresponding switch is turned off so that the driving motor stops operating.Through this, the three-way valve can be switched quickly when switching between heating mode and hot water mode, thereby maximizing user convenience and reliability. The purpose is to provide a three-way valve for the gas boiler.

The present invention for achieving the above object,

According to claim 1,

Rotational operation of the drive motor inside the valve body having the circulating water inlet, the hot water supply port, and the heating water supply port allows the ball valve to rotate in one direction, selectively blocking the hot water supply port or the heating water supply port, thereby circulating water. In the trilateral side fed by

A first and a second annular ribs are formed on the upper and lower surfaces of the ball valve and the rotating shaft of the drive motor, respectively, and an actuator is formed, and at a predetermined position on the outer circumference of the first and second annular ribs, The first and second stepped portions are formed to be stepped in a 'b' shape so as to correspond to each other, and the first and second switches including a pair of fixed terminals and movable terminals are in contact with the first and second annular ribs. It is characterized in that the drive motor is configured to stop when the moving terminal constituting the switch to form a switch during the rotation of the actuator is separated from the fixed terminal while falling by the stepped portion.

According to claim 2,

The first and second switches may be connected to a control unit that controls the rotation operation of the driving motor, so that the control unit stops the driving motor when the first switch or the second switch is turned off.

According to claim 3,

The position at which the first stepped portion and the second stepped portion are formed has a phase angle of 90 °.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 3 to 6.

The lower case 20 for installing the actuator 40 and the drive motor 31 is formed on the lower side of the valve body 22 in which the ball valve 26 is embedded, and on the upper side of the valve body 22. The circulation water inlet 23 is formed in the vertical direction, and the heating water supply port 24 and the hot water supply port 25 are formed at a side portion of the valve body 22 to form an angle of 90 degrees.

The ball valve 26 embedded in the valve body 22 rotates in one direction to selectively open the heating water supply port 24 and the hot water supply port 25, and the circulation water inlet 23 at the upper side thereof. The upper hole 27 for opening) is formed, and the first to third holes 28 to 30 are formed in the side portions to form a 90 ° angle, respectively.

The upper part of the lower case 20 is formed with a central shaft 21 for connecting with the ball valve 26, the actuator 40 is fitted to the lower side of the central shaft 21 is coupled.

The actuator 40 is formed in a disc shape, the upper surface of the actuator 40 is formed with a fitting groove 41 for fitting the lower side of the central shaft 21, the driving motor 31 in the center of the lower surface The fitting groove 42 for fitting the rotary shaft 32 of the () is formed.

In addition, first and second annular ribs 43 and 44 protrude in a circular shape on upper and lower edges of the actuator 40, respectively, and the first and second annular ribs 43 and 44 at predetermined positions. The two stepped portions 45 and 46 are formed stepped in a 'b' shape.

That is, the first stepped portion 45 is formed on the first annular rib 43, and the second stepped portion 46 is formed on the second annular rib 44, and the first and second steps The positions 45 and 46 are formed such that the ball valve 26 corresponds to a position at which the heating water supply port 24 or the hot water supply port 25 is selectively blocked.

Meanwhile, a first switch 47 and a second switch 48 are installed to contact the first and second annular ribs 43 and 44, and the switches 47 and 48 are formed of the lower case 20. It is composed of a fixed terminal 49 and a movable terminal 50 which are extended from both ends and the ends thereof are in contact with each other, the movable terminal 50 is in the center direction of the actuator 40 compared to the fixed terminal 49 When the movable terminal 50 is in contact with the annular ribs 43 and 44, the fixed terminal 49 is brought into contact with the fixed terminal 49 to output a predetermined electric signal to the control unit 60. When the stepped portions 45 and 46 are close to the movable terminal 50 by the rotation operation of the 40, the movable terminal 50 is bounced off by its elasticity and is separated from the fixed terminal 49 while the switches 47 and 48 are separated. Will be off.

The rotary shaft 32 of the drive motor 31 is fitted into the fitting groove 42 and coupled to the lower side of the actuator 40, and the drive motor 31 is selectively operated by a control signal of the controller 60. To rotate in one direction.

In addition, the controller 60 controls the driving motor 31 according to a key operation such as a heating key, a hot water key, etc. of the control panel 61 operated by a user, and the driving motor 31. ), The driving motor 31 is stopped when either one of the first switch 47 or the second switch 48 is turned off.

Referring to the operation of the present invention configured as described above is as follows.

In the ball valve 26, the first hole 28 opens the heating water supply port 24, and the second hole 29 opens the hot water supply port 25 as shown in FIG. 6A. Exists as.

At this time, both the first switch 47 and the second switch 48 are in contact with the first and second annular ribs 43 and 44 of the actuator 40 to maintain the on state.

In this state, when the user manipulates the hot water key provided in the control panel 61, the control unit 60 drives the driving motor 31 to rotate in the clockwise direction on the drawing, whereby the actuator 40 ) And the ball valve 26 is rotated in the clockwise direction, and when rotated about 90 degrees, the second switch 48 is turned off by the second step 46, as shown in Figure 6 (b) The controller 60 turns off the driving motor 31.

In this state, as the first hole 28 of the ball valve 26 opens the hot water supply port 25 as shown in FIG. 6B, the hot water introduced into the circulating water inlet 23 receives the hot water supply port ( It is supplied through 25) so that users can use hot water quickly.

In addition, when the user operates the heating key provided in the control panel 61, the control unit 60 drives the drive motor 31, whereby the actuator 40 and the ball valve 26 is clockwise Will rotate.

At this time, as shown in FIG. 6C, when the first switch 47 is turned off by the first stepped part 45, the controller 60 turns off the driving motor 31. The third hole 30 selectively opens the heating water supply port 24 so that hot water is quickly supplied to the indoor heating pipe.

As described above, according to the present invention, the ball valve 26 is rotated 90 degrees according to a user's hot water key or heating key operation so that the heating water supply port 24 and the hot water supply port 25 are quickly opened. Is supplied to the heating or hot water within a short time will be able to significantly shorten the supply time of hot water.

As described above, the present invention forms a separate actuator between the ball valve and the drive motor, and protrudes first and second annular ribs having a stepped portion at predetermined positions on the upper and lower surfaces of the actuator, A movable terminal constituting the switch by the stepped portion when the ball valve and the actuator rotates by driving the drive motor by forming the first and second switches made of the fixed terminal and the movable terminal in contact with the outer circumference of the annular rib. Is switched off from the fixed terminal and the switch is turned off to stop the driving motor.Through this, the three-way valve is switched quickly when switching between heating mode and hot water mode, thereby maximizing user convenience and reliability. The effect of providing three-sided boilers can be expected.

Claims (3)

 The ball valve 26 rotates in one direction by the rotational operation of the drive motor 31 inside the valve body 22 having the circulating water inlet 23, the hot water supply port 25, and the heating water supply port 24. In the three-way to selectively supply the circulation water by selectively blocking the hot water supply port 25 or the heating water supply port 24, Between the ball valve 26 and the rotating shaft 32 of the drive motor 31, an actuator 40 having first and second annular ribs 43 and 44 protruding from each other is formed on the upper and lower surfaces thereof. And the first and second stepped portions 45 and 46 stepped in a 'b' shape to correspond to the stop position of the ball valve 26 at a predetermined position of the outer circumference of the second annular ribs 43 and 44. The first and second switches 47 and 48 made up of a pair of fixed terminals 49 and movable terminals 50 are formed in contact with the first and second annular ribs 43 and 44. The driving motor 31 stops when the movable terminal 50 constituting the switches 47 and 48 descends by the stepped portions 45 and 46 while being separated from the fixed terminal 49 when the sieve 40 rotates. Three-way valve for the gas boiler characterized in that. The method according to claim 1, The first and second switches 47 and 48 are connected to the control unit 60 that controls the rotation operation of the driving motor 31 so that the control unit 60 when the first switch 47 or the second switch 48 is turned off. ) Is a three-way valve for a gas boiler, characterized in that to stop the drive motor (31). The method according to claim 1, The three-step side for the gas boiler, characterized in that the position of the first stepped portion 45 and the second stepped portion 46 has a phase angle of 90 degrees.

Images