KR100584816B1 - Motor operated valve - Google Patents

Abstract

The present invention relates to an electric valve, and more particularly, a valve chamber in which a predetermined valve body is installed, and a rotor chamber in which a rotor and a magnet combination are rotatably formed are integrally formed in one body, and the opening of the rotor chamber is formed. The present invention relates to an electric valve which is welded and sealed with a disc-shaped cover to reduce the number of parts, simplify the assembly process, and improve the durability and reliability of the product.

The three-way electric valve according to the present invention has a cylindrical substrate portion in which a valve chamber in which one inlet port and two outlet ports are installed in communication is formed, and a rotor chamber in which a rotor and a magnet assembly are rotatably installed. The valve housing of the tubular body consisting of a single body; Two valve bodies provided on the bottom of the rotor to open and close the two outlet ports formed at a predetermined distance from the bottom surface of the valve chamber; A disc-shaped cover rotatably supporting the rotor and the magnet assembly and welded to the opening of the cylindrical tube to seal the valve chamber and the rotor chamber; Characterized in that it comprises a stator coil assembly installed on the outer peripheral surface of the tube portion.

Electric valve, solenoid valve, valve body, valve chamber, rotor, rotor chamber, magnet

Description

Motor operated valve

1 is an exploded perspective view showing an example of a three-way electric valve according to the prior art,

Figure 2 is a cross-sectional view showing a coupling relationship of the three-way electric valve according to the prior art shown in FIG.

3 is a perspective view showing the appearance of a preferred embodiment of a three-way electric valve according to the present invention;

Figure 4 is an exploded perspective view showing a three-way electric valve of the present invention shown in Figure 3,

Figure 5 is a partial cross-sectional exploded perspective view showing a three-way electric valve of the present invention shown in Figure 4,

Figure 6 is a partial cross-sectional view showing the inner coupling structure of the three-way electric valve of the present invention shown in Figure 3,

7 is an enlarged cross-sectional view showing a coupling relationship between an upper rotary shaft provided on an upper portion of a rotor and an upper bearing groove formed on a bottom surface of a cover;

8 is a perspective view showing another embodiment of the three-way electric valve according to the present invention, the rotor and the magnet combination and the valve body installed on the bottom of the rotor,

9 is an exploded perspective view of FIG. 8;

10 is a sectional view of FIG. 9;

11 is a sectional view of a three-way electric valve to which a rotor, a magnet combination and a valve body according to the present embodiment are applied.

**** Description of the symbols for the main parts of the drawings ****

10: valve housing 20: substrate

21: valve chamber 22: inlet port

24: outlet port 29: stopper pin

30: valve body 40: pipe part

41: rotor chamber 50: rotor

70: magnet 90: cover

The present invention relates to an electric valve, and more particularly, a valve chamber in which a predetermined valve body is installed, and a rotor chamber in which a rotor and a magnet combination are rotatably formed are integrally formed in one body, and the opening of the rotor chamber is formed. Welded and sealed with a disc-shaped cover, the present invention relates to an electric valve that not only reduces the number of parts and simplifies the assembly process but also improves the durability and reliability of the product.

In general, the 3-way electric valve is applied to a refrigeration cycle of a domestic refrigerator or a kimchi refrigerator, and is installed between a condenser and a capillary tube to selectively supply refrigerant from the condenser to two refrigerating compartments (or a refrigerating compartment and a freezing compartment). Play a role. Accordingly, the three-way electric valve includes a valve chamber in which one inlet port and two outlet ports communicate with each other, a valve body installed in the valve chamber to selectively open and close two outlet ports, a rotor and a magnet for rotating the valve body. It comprises a combination, and the rotor chamber is rotatably installed the rotor and the magnet assembly.

1 and 2 are exploded perspective and cross-sectional views showing an example of a three-way electric valve according to the prior art, as shown, the conventional three-way electric valve is a circular valve chamber 111 on the upper surface of the valve housing 110 ) Is formed, and the valve chamber 111 is provided with a disk-shaped valve body 117. In addition, a rotor 130 and a magnet 120 are sequentially installed on an upper portion of the valve housing 110, and a cap-shaped rotor case in which a rotor chamber 151 to which the rotor and the magnet assembly are rotatably inserted is formed. 150) is covered. The lower end of the rotor case 150 is soldered and welded to the outer circumferential surface of the flange-shaped lower cover 115 formed on the outer circumferential surface of the valve housing 110. In addition, a cylindrical stator coil assembly 170 is installed on an outer circumferential surface of the rotor case 150.

As described above, since the valve chamber 111 and the rotor chamber 151 are separated from each other, the valve chamber 111 is formed to seal the valve chamber 111 and the rotor chamber 151. Solder welding of the valve housing 110 and the rotor case 150, the rotor chamber 151 is formed. However, in general, since the diameter of the rotor case 150 is larger than that of the valve housing 110, a flange-shaped lower cover 115 is further installed on the outer circumferential surface of the valve housing 110 and welded to the outer circumferential surface thereof. As such, the conventional three-way electric valve has a complicated problem because the manufacturing process is performed twice.

 In addition, the conventional three-way electric valve has a structure in which the rotor and the magnet combination rotate with the valve body 117 and the valve holder member 160 as the rotating shaft, as shown in Figure 2 and the valve body 117 and In addition, the structure of the rotor 130 and the magnet 120 is not only complicated, but a separate valve holder member 160 for fixing the valve body 117 to the bottom of the rotor 130 is further required, and the configuration is complicated. There was a problem that the assembly process increases. In addition, the conventional rotor case 150 has a problem that a complicated manufacturing process such as a forming process is required separately because the metal plate has to be processed into a cap shape.

Accordingly, the present invention has been made in order to solve the problems of the prior art, the main object of the present invention is a valve chamber in which the valve body is installed valve body is installed, and a rotor chamber rotatably installed rotor and magnet combination in one body It is to provide an electric valve that can be formed integrally to reduce the number of parts and simplify the manufacturing process and assembly process.

In addition, the present invention by forming the upper and lower rotary shafts on the upper and lower surfaces of the rotor integrally, and by using the rotation of the rotor and the magnet combination to simplify the structure of the valve body, rotor and magnet as well as omit the valve holder member. To provide an electric valve.

The present invention also by installing two valve bodies corresponding to the two outlet ports spaced apart from each other to reduce the contact resistance generated during the rotation of the valve body and to prevent the deflection of the deflection to prevent the leakage of fluid such as refrigerant. To provide an electric valve.

In order to achieve the above object, the electric valve according to the present invention includes a cylindrical board portion having a valve chamber in which one inlet port and a plurality of outlet ports are installed in communication, and a rotor and a magnet assembly are rotatably installed. A valve housing in which a cylindrical tube portion in which a rotor chamber is formed is formed of a single body; A plurality of valve bodies provided on a bottom surface of the rotor to open and close a plurality of outlet ports formed at a predetermined distance from the bottom surface of the valve chamber; A disc-shaped cover rotatably supporting the rotor and the magnet assembly and welded to the opening of the tube to seal the valve chamber and the rotor chamber; Characterized in that it comprises a stator coil assembly installed on the outer peripheral surface of the tube portion.

The valve housing may include an inlet port formed through the outer circumferential surface of the substrate part so as to communicate with a circular valve chamber formed at a predetermined depth on an upper surface of the substrate part, a plurality of outlet ports formed to pass through the bottom surface of the valve chamber at a predetermined distance; A lower bearing groove formed at the center of the bottom surface of the valve chamber so as to rotatably support the lower rotating shaft of the rotor, and a stopper pin protruding perpendicularly to the annular stepped portion protruding a predetermined height around the valve chamber; It is composed.

The valve body includes an opening and closing portion having a diameter sufficient to seal the outlet port, a fixing portion having a diameter smaller than the opening and closing portion and extending vertically upward, and a compression coil spring installed around the fixing portion. It is composed.

And the bottom surface of the valve body is characterized in that the circular closing groove of a predetermined depth is formed to reduce the low resistance to the valve chamber bottom surface.

The upper and lower rotary shafts of a predetermined length are integrally formed at the centers of the upper and lower surfaces of the rotor, and two insertion holes are formed in the axial direction so as to correspond to the plurality of outlet ports formed in the valve chamber. It is characterized in that the sieve is fixed. At this time, the insertion hole is formed with a stepped seat for the compression coil spring installed in the fixed portion of the valve body.

The magnet is a cylindrical plastic magnetic body coupled to the outer circumferential surface of the rotor, the lower end is formed with a stopper protrusion of a predetermined section, the inner circumferential surface flat portion and stepped portion corresponding to the flat portion and stepped portion formed on the outer circumferential surface of the rotor It is formed and is fixed in the rotation direction.

An upper bearing groove is formed at the center of the cover to rotatably support the upper rotating shaft of the rotor.

At this time, the upper and lower ends of the upper and lower rotating shaft formed on the shaft is formed in the shaft portion is reduced in diameter and the shaft portion is characterized in that the shorter than the depth of the upper and lower bearing groove.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the three-way electric valve according to the present invention.

First, Figure 3 is a perspective view showing the appearance of the three-way electric valve according to the present embodiment, Figure 4 is an exploded perspective view showing the assembly relationship of the three-way electric valve according to this embodiment, Figure 5 is shown in Figure 4 6 is a partial sectional view showing an internal structure as an exploded perspective view, and FIG. 6 is a partial sectional view showing a coupling structure of a three-way electric valve according to the present embodiment.

As shown in Figures 3 and 4, the three-way electric valve 1 according to the present embodiment is a valve housing 10 is largely combined with one inlet pipe 12 and two discharge pipes 14, and A cover in which two valve bodies 30, a rotor 50, a magnet 70, and the valve housing 10 are rotatably installed in the valve housing 10 are welded to the upper opening 43. It consists of 90.

5 and 6, the three-way electric valve 1 according to the present embodiment has a circular valve chamber 21 in which one inlet port 22 and two outlet ports 24 communicate with each other. And a cylinder housing having a cylindrical rotor chamber 41 having a single body, a combination 80 of the rotor 50 and the magnet 70 rotatably installed in the rotor chamber 41, and the Two valve bodies 30 provided on the bottom surface of the rotor 50 so as to open and close the two outlet ports 24 formed at a predetermined distance from the bottom surface of the valve chamber 21 and the rotor 50 are rotated. It is comprised by the disk-shaped cover 90 which supports as much as possible and seals the opening part of the said rotor chamber 41.

The valve housing 10 includes a cylindrical tube portion 40 in which a cylindrical chamber portion 20 in which a valve chamber 21 having a predetermined depth is formed and a rotor chamber 41 in a predetermined height are formed in one body. That is, the substrate portion 20 and the tube portion 40 are made by cutting a single metal member. Therefore, the substrate portion 20 and the tube portion 40 are completely sealed.

In addition, the inlet port 22 is formed to penetrate in the horizontal direction to the outer peripheral surface of the substrate portion 20 so as to communicate with the valve chamber 21 formed at a predetermined depth on the upper surface of the substrate portion 20. In addition, the two outlet ports 24 are formed to penetrate the bottom surface of the valve chamber 21 at a predetermined distance from each other. In addition, a lower bearing groove 25 for rotatably supporting the lower rotating shaft 51 of the rotor 50 is formed in the center of the bottom surface of the valve chamber 21. A stopper pin 29 protrudes vertically from the annular stepped portion 27 protruding a predetermined height around the valve chamber 21.

Inlet pipes 12 are coupled to the inlet port 22, and discharge pipes 14 are coupled to the two outlet ports 24, respectively. Therefore, the predetermined refrigerant flowing into the valve chamber 21 through the inlet pipe 12 is discharged to the discharge pipe 14 through the outlet port 24 selected according to the opening and closing action of the valve body 30 moving concentrically. Will be discharged.

Subsequently, the valve body 30 has a diameter smaller than that of the opening and closing portion 33 and the opening and closing portion 33 having a diameter capable of sealing the outlet port 24 formed in the valve chamber 21 and is vertically upward. It consists of a fixed extended portion 35. At this time, the bottom of the opening and closing portion 33 in contact with the bottom surface of the valve chamber 21 is formed with a circular closing groove 37 of a predetermined depth. In addition, a predetermined compression coil spring 39 is installed around the fixing part 35.

The valve body 33 is fixed to the insertion hole 55 formed in the bottom surface of the rotor 50 so as to correspond to the two outlet ports 24. That is, the fixing part 35 of the valve body 33 is inserted into two insertion holes 55 formed on the bottom surface of the rotor 50 so as to correspond to the two outlet ports 24. Therefore, the valve body 33 moves concentrically while rotating together with the rotation of the rotor 50. Further, the valve body 30 is always pressed downward by the compression coil spring 39 inserted into the insertion hole 55 together with the fixing part 35. Therefore, the bottom surface of the opening-closing portion 33 is in close contact with the bottom surface of the valve chamber 21. At this time, the lower end of the insertion hole 55 is provided with stepped to limit the upward movement of the compression coil spring (39).

The rotor 50 has an upper and lower rotary shafts 51 and 52 of a predetermined length integrally formed at the center of the upper surface and the lower surface. In the axial direction, two insertion holes 55 corresponding to the two outlet ports 24 are formed to penetrate in the axial direction. The magnet 70 is a cylindrical plastic magnetic body that is coupled to the outer circumferential surface of the rotor 50, and a stopper protrusion 73 of a predetermined section is integrally formed at a lower end thereof. In addition, the inner circumferential surface of the magnet 70 has a flat plate portion 77 and a stepped portion 79 corresponding to the flat portion 57 and the stepped portion 59 on the outer circumferential surface of the rotor 50. Therefore, the rotor 50 and the magnet 70 constitute the rotor and the magnet assembly 80 are integrally coupled in the rotation direction.

Subsequently, the rotor and the magnet assembly 80 to which the two valve bodies 30 are fixed are rotatably installed in the rotor chamber 41 and the valve chamber 21. That is, as shown in FIG. 6, the lower rotation shaft 51 of the rotor 50 is rotatably inserted into the lower bearing groove 25 formed in the center of the valve chamber 21. The lower end of the rotor 50 is in close contact with the annular stepped protrusion 27 formed around the valve chamber 21. The valve body 30 is positioned to open and close the two outlet ports 24. At this time, the lower end of the magnet 70 is installed to be spaced apart from the annular stepped portion 27 of the substrate portion 20, the stopper projection 73 is installed at its end is perpendicular to the annular stepped portion (27) It is installed to contact the installed stopper pin 29.

And a disc-shaped cover 90 is welded to the opening part 43 of the pipe part 40 in which the rotor and the magnet assembly 80 are installed. At this time, the outer peripheral surface of the lower end of the cover 90 is formed with a predetermined stepped groove 92 to be coupled to the inner peripheral surface of the tube portion 40. In addition, an upper bearing groove 94 for rotatably supporting the upper rotating shaft 52 of the rotor 50 is formed at the center of the bottom surface of the cover 90.

On the other hand, the upper and lower rotary shafts 52 and 51 of the rotor 50 are integrally formed with shaft portions 54 and 53 of a predetermined length having a reduced diameter. Therefore, as shown in Figure 7, the upper and lower bearing grooves 94 and 25, the shaft portion 54, 53 is inserted. At this time, the length of the shaft portion 54, 53 is shorter than the depth of the bearing groove (94, 25). Therefore, even when the shaft portions 54 and 53 are heated and expanded by high speed rotation, the shaft portions 54 and 53 can be prevented from being caught in the bearing grooves 94 and 25.

Subsequently, the cover 90 is solder welded on top of the tube portion 40. At this time, the welding temperature of the cover 90 is preferably 400 ° C or less. That is, the cover 90 is welded after the magnet 70 is installed in the pipe portion 40. In the case of the normal solder or brazing welding, the average welding temperature is 600 ° C. or more and the partial welding temperature is more than 1500 ° C. Is common. However, since the magnet 70 made of a plastic magnetic material loses its magnetism when heat of 430 ° C. or more is applied, the magnetism of the magnet is damaged when the conventional lead welding or brazing welding is applied as it is. Accordingly, the present invention is characterized by welding at a low temperature of less than 250 ℃ using a material with a weight ratio of 3.5% and 96.5% of Ag and Sn.

In this way, when the lid 90 is soldered and welded to the opening 43 of the valve housing 10, the rotor chamber 41 and the valve chamber 21 are sealed. In particular, the present invention is not only the shape of the cover 90, but also made of a metal member of a predetermined thickness, there is no deformation due to external force or heat, as well as the stepped groove 92 is formed at the lower end, it is possible to be completely sealed.

And a cylindrical stator coil assembly (not shown) is installed on the outer circumferential surface of the pipe part 40. Accordingly, the 3-way electric valve 10 according to the present invention controls the rotation direction and the radius of the rotor and the magnet assembly 80 in accordance with the power applied to the stator coil valve body 30 installed in the valve chamber 21 ) Is moved concentrically to selectively open and close the two outlet ports (24).

On the other hand, Figures 8 to 11 show another embodiment of the three-way electric valve according to the present invention, Figure 8 is a perspective view showing the rotor and the magnet combination and the valve body installed on the bottom of the rotor, Figure 9 is an exploded view 10 is an exploded cross-sectional view of FIG. As shown, the rotor 250 according to the present embodiment consists of an upper body 260 and a lower body 240 which are coupled up and down on one central rotation shaft 253. That is, the upper body 260 is a cylindrical body coupled to the upper side of the cylindrical magnet 270, the center of the horizontal plate 268 is formed integrally formed with a through hole 266 through which the central rotation shaft 253 is penetrated. have. In addition, a cylindrical cylindrical portion 261 inserted into the magnet 270 is integrally formed on an upper surface of the horizontal plate 268, and a predetermined coil spring 239 is formed on one side of the bottom surface of the horizontal plate 268. The arcuate settlement portion 262 of a predetermined length in which two settling grooves 265 in which are placed) is vertically formed is extended and formed integrally.

In addition, the lower body 240 is a driving body coupled to the lower side of the cylindrical magnet 270, a predetermined bottom plate 248 is integrally formed, and the center rotation shaft 253 penetrates and engages therein. The partition walls 243 having the through holes 246 to be formed are vertically formed. In addition, an arc-shaped coupling groove 242 into which an arc-shaped settled portion 262 formed on a bottom surface of the upper body 260 is inserted is formed at one side of the partition 243, and the other of the partition 243 is formed. The hollow part 249 of a predetermined shape is formed in the side. In addition, an opening 244 is formed at one side of the bottom plate 248 to open the lower end of the coupling groove 242.

On the other hand, the lower body 240 is coupled to the arc-shaped valve body 230, the valve body 230 is one arc-shaped having a size enough to seal the two outlet ports formed in the valve chamber at the same time The opening portion 233 and the fixing portion 235 is formed on the upper end of the arc-shaped opening and closing portion 233 protruding outward so as to be caught around the opening 244 formed on the bottom surface of the coupling groove 242 is integrated. It is formed. In addition, the upper surface of the valve body 230 is made flat so that the two coil springs 239 can be uniformly suppressed, and the bottom has a closed groove 237 of a predetermined size to seal the two outlet ports at the same time. Formed.

Therefore, the rotor 250 according to the present embodiment inserts and installs an arc-shaped valve body 230 through the coupling groove 242 of the lower body 240, and then into the spring settle groove 265 of the upper body 260. In the state in which the coil spring 239 is settled, respectively, the settled portion 262 of the upper body 260 is inserted into and coupled to the coupling groove 242 of the lower body 240. Subsequently, the center rotation shaft 253 is formed by passing through the through-hole 246 of the lower body 240 and the through-hole 266 of the upper body 260. In addition, the rotor 250 is inserted into the cylindrical magnet 270 to be coupled to the inner surface to form the rotor magnet assembly 280.

At this time, the arc-shaped valve body 230 inserted into the coupling groove 242 of the lower body 240 is caught by the circumference of the opening 244 formed in the bottom surface 248 of the fixing portion 235, The two coil springs 239 installed in the settling groove 262 of the upper body 260 are pressed downward to expose the bottom of the valve body 230 to the bottom of the lower body 240.

As shown in FIG. 11, the rotor and the magnet assembly 280 coupled as described above have a cylindrical tube portion 40 having a cylindrical substrate portion 20 in which a valve chamber 21 having a predetermined depth is formed and a rotor chamber having a predetermined height. ) Is inserted into the valve housing 10 consisting of a single body. Then, the opening of the tube portion 40 in which the rotor and the magnet assembly 280 are installed is welded and sealed by a disc-shaped cover 290. Then, the valve body 230 exposed to the bottom of the lower body 240 is kept in intimate contact with the bottom surface of the valve chamber 21 to open and close the two outlet ports.

As described above, the three-way electric valve according to the present invention reduces the number of parts and reduces the number of parts by integrally forming a valve chamber in which the valve body is installed and a rotor chamber in which the rotor and the magnet assembly are rotatably installed in one body. There is an effect that can simplify the assembly process.

The present invention also has the effect of simplifying the assembly of the valve body, the rotor and the magnet by rotating the rotor and the magnet combination by using the upper and lower rotary shafts formed on the upper and lower surfaces of the rotor.

In addition, the present invention by installing two valve body corresponding to the two outlet port spaced apart from each other to reduce the contact resistance generated during the rotation of the valve body and to prevent the deflection of the deflection to prevent the refrigerant leaking effect have.

Claims (13)

Valve housing consisting of a cylindrical body formed with a cylindrical tube portion formed with a valve chamber in which one inlet port and a plurality of outlet ports communicate with each other, and a cylindrical tube formed with a rotor chamber rotatably installed with a rotor and a magnet assembly. and; A plurality of valve bodies provided on a bottom surface of the rotor to open and close a plurality of outlet ports formed at a predetermined distance from the bottom surface of the valve chamber; A disc-shaped cover rotatably supporting the rotor and the magnet assembly and coupled to the opening of the pipe to seal the valve chamber and the rotor chamber; Electric valve comprising a stator coil assembly provided on the outer peripheral surface of the pipe portion. The method of claim 1,  The valve housing may include an inlet port formed through the outer circumferential surface of the substrate part so as to communicate with a circular valve chamber formed at a predetermined depth on an upper surface of the substrate part, a plurality of outlet ports formed to pass through the bottom surface of the valve chamber at a predetermined distance; A lower bearing groove formed in the center of the bottom surface of the valve chamber to rotatably support the lower rotating shaft of the rotor, and a stopper pin protruding perpendicularly to the annular stepped protrusion protruding a predetermined height around the valve chamber. Electric valve, characterized in that. The method of claim 1, The valve body includes an opening and closing portion having a diameter sufficient to seal the outlet port, a fixing portion having a diameter smaller than the opening and closing portion and extending vertically upward, and a compression coil spring installed around the fixing portion. Electric valve, characterized in that configured. The method of claim 3, The bottom of the opening portion is formed with a circular closing groove of a predetermined depth is an electric valve, characterized in that to reduce the resistance to the bottom of the valve chamber bottom surface. The method of claim 1, The rotor has an upper and lower rotary shafts of a predetermined length integrally formed at the centers of the upper and lower surfaces thereof, and a plurality of insertion holes are formed in the axial direction so as to correspond to the plurality of outlet ports formed in the valve chamber. Electric valve. The method of claim 5, The lower end of the insertion hole is an electric valve characterized in that the stepped to limit the movement of the compression coil spring installed in the valve body in the upward direction. The method of claim 5, An electric valve, characterized in that the shaft portion is formed integrally at the front end of the upper, lower rotary shaft, the shaft portion is formed shorter than the depth of the corresponding bearing groove. The method of claim 1, The magnet is a cylindrical plastic magnetic body coupled to the outer circumferential surface of the rotor, the lower end is formed with a stopper protrusion of a predetermined section, the inner circumferential surface is formed with a flat portion and a stepped portion corresponding to the flat portion and the stepped portion formed on the outer circumferential surface of the rotor An electric valve characterized by the above-mentioned. The method according to claim 1 or 5, And an upper bearing groove for rotatably supporting the upper rotating shaft of the rotor at the center of the cover, and a stepped groove formed at a lower end of the outer circumferential surface thereof to be coupled to the inner circumferential surface of the tube. The method of claim 9, The lower end of the cover and the upper end of the tube is an electric valve, characterized in that the solder welding at a welding temperature of less than 250 ℃. Valve housing consisting of a cylindrical body formed with a cylindrical tube portion formed with a valve chamber in which one inlet port and a plurality of outlet ports communicate with each other, and a cylindrical tube formed with a rotor chamber rotatably installed with a rotor and a magnet assembly. and; A valve body provided on the bottom surface of the rotor to simultaneously open and close a plurality of outlet ports formed at a predetermined distance apart from the bottom surface of the valve chamber; A disc-shaped cover rotatably supporting the rotor and the magnet assembly and coupled to the opening of the pipe to seal the valve chamber and the rotor chamber; Electric valve comprising a stator coil assembly provided on the outer peripheral surface of the pipe portion. The method of claim 11, The rotor is integrally formed with a horizontal plate having a through hole through which one central rotation shaft penetrates, and a predetermined cylindrical portion inserted into a magnet is integrally formed on an upper surface of the horizontal plate, and one side of the bottom surface of the horizontal plate. An upper body integrally formed by extending an arc-shaped settled portion of a predetermined length formed vertically with two settled grooves in which a predetermined coil spring is placed; A partition wall is formed vertically with a through hole through which the center rotation shaft penetrates and is coupled to the inside of the cylindrical portion which is integrally formed with a bottom surface, and an arc-shaped settle portion formed on the bottom surface of the upper body is inserted and coupled to the center of the partition wall. An arc-shaped coupling groove is formed, the electric valve characterized in that it comprises a lower body formed with an opening for opening the lower end of the coupling groove on one side of the bottom surface. The method of claim 12, The valve body has one arc-shaped opening and closing portion having a size sufficient to simultaneously seal two outlet ports formed in the valve chamber, and an arc-shaped opening formed at an upper end of the arc-shaped opening and closing portion and formed at the bottom of the coupling groove portion. Electric valve, characterized in that the fixing portion is formed integrally with the stepped portion to the outside to be caught around.

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