KR0130152Y1 - Four-way valve for airconditioner refrigerant direction converting - Google Patents

Abstract

[purpose]

The purpose of the valve is to automatically reverse the flow direction of the refrigerant flow of the air-conditioning combined air conditioner whenever the season changes.

[Configuration]

Two pairs of eccentric crank valve shafts and the above-mentioned eccentricity which have driven gears geared to the gears of the motor output shaft of a single drive source and are rotatably installed through a sealing member about the hinge axis of the valve cover. Rubber ball and two hollow parts and two hollow parts which are installed rotatably at each end of the crank valve shaft to open and close each pair of outlet seats oppositely with the rotational deviation of two pairs of exit seats 180 degrees by rotating circular motion. It is characterized by a configuration consisting of two pairs of valve auxiliary bodies connecting one outlet port in the same direction as a valve body having one inlet port and two outlet ports on a plane.

Description

Four-way valve for air conditioner refrigerant changeover

1 is a longitudinal cross-sectional view of a four-way valve according to the present invention.

Figure 2 is a cross-sectional view for explaining the operating state of the valve unit of the present invention.

3 is an operation of a conventional refrigerant switching four-way valve.

4 is a configuration diagram of a heating and cooling cycle of a heat pump air conditioner.

* Explanation of symbols for main parts of the drawings

1: valve body 2. 3: valve auxiliary body

4: valve cover 5: eccentric crank valve shaft

6: rubber ball 7: drive gear

8: driven gear 9: motor

10: output shaft 11.12.13: sealing member

21: hinge shaft 31. 32. 33. 34: exit seat

41. 42: Inlet port 43. 44. 45. 46: Outlet port

51. 52: valve body hollow 53. 54: valve auxiliary body

[Industrial use]

The present invention relates to a four-way valve for changing the flow direction of the refrigerant fluid of the air-conditioning combined air conditioner.

In other words, air conditioners are not just heating and cooling these days. When cooling, cold wind blows from the indoor side and hot wind blows from the outside.

In this situation, if you change the inside and the outside of the room, the hot wind comes out of the room, which is the heating principle of the heat pump air conditioner.

However, since the interior and exterior can not be changed each time the season changes, a four-way valve is used to automatically change the flow of the refrigerant. Conventional four-way valves of this type include the following configurations.

[Prior art]

As shown in FIG. 3, in the cooling state, no current flows to the solenoid coil on all sides, thereby blocking the chamber A of the pilot valve by spring force.

At this time, the high pressure refrigerant from the compressor enters the pilot valve through the FRONT CAPILLARY through the small hole of the piston E.F.

The refrigerant entering the piston E side is decompressed because the chamber B is open, and the refrigerant entering the piston F side is blocked to maintain the pressure.

The pressure difference generated here pushes the slide valve to the left to enter the cooling operation state. In heating, the four-side coil is energized and the needle valve is moved to the right to block the B seal. In this case, the heating operation is operated in reverse with cooling.

[A challenge to solve]

In the conventional solenoid four-way valve using the discharge pressure of the refrigerant gas, as shown in FIG. 3, the flow path of the refrigerant shows smooth operation by the differential pressure generation principle using the pilot valve, but when the fluid refrigerant is used, the viscosity of the fluid and the differential pressure of the fluid Due to the reduction, the conventional four-way valve has a problem that it is difficult to achieve the purpose of use.

[Means for resolving bills]

As such, the present invention has been made to solve the above technical problem.

The main feature of the present invention is the hinge shaft 21 of the valve cover 4 as well as having two driven gears 8 geared to the drive gear 7 provided on the output shaft of the single drive motor fixed to the upper support. 2) the two eccentric crank valve shaft 5 and the eccentric crank valve shaft 5 which are rotatably installed via the sealing member 11.12 are rotatably installed by the circular arc motion. Rubber ball (6) and two hollow parts (51.52) and one inlet on the same plane of each hollow part having two pairs of opposite exit toilet seats (31.32.33.34) 180 degrees rotation deviation opening and closing each pair of exit toilet seats oppositely Four-way transformation consisting of two pairs of valve auxiliary bodies (2.3) connecting the outlet port (43.44.45.46) in the same direction as the valve body (1) with port (41.42) and two outlet toilet seats (31.32.33.34) It is an appliance.

[Action]

As described above, the present invention provides two pairs of eccentric cranks driven by the same drive source.

The two pairs of rubber balls 6 provided on the valve shaft 5 simultaneously open and close the outlet outlets opposite the hollow portions 51.52 of the valve body 1 with the rotational circular motions having a 180-degree rotational deviation. Simultaneously switch the direction of the splitting fluid path

EXAMPLE

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings prepared on the basis of a preferred embodiment of the present invention. In FIGS. 1 to 2, the four-way valve of the present invention is driven by the valve unit A and the drive unit B. FIG.

The valve portion A rotates the circular motion of the rubber ball 6 and the rubber ball 6 configured to open and close each outlet toilet seat 31.32.33.34 of the valve body 1 and the valve auxiliary body 2.3. It consists of the eccentric crank valve shaft 5. The valve body 1 has two hollow portions 51.52, and each of the hollow portions 51.52 has two opposite outlet ports 43.44.45.46 and one inlet port 41.42 on the same plane. The outlet port 43.44.45.46 is selectively opened and closed by being present in the rotational circular motion range of the rubber ball 6, and the interior of the two pairs of valve auxiliary bodies 2 is formed by the hollow portion 53.54. It is inserted in the same direction outlet port (43.44.45.46) of the valve body (1) and connects the same direction outlet port of the valve body (1) into one.

The two pairs of rubber balls 6 are rotatably installed on the eccentric crank valve shaft 5 so as to enable rotational circular motions in the hollow portions 51.52 of the valve body 1, and always have a rotational deviation of 180 degrees. The outlet toilet seat 31.32.33.34 of each hollow part 51.52 of the valve body 1 is sealed tightly.

The eccentric crank valve shaft 5 is rotatably installed by the drive gear 7 while the airtight state is maintained through the sealing member 11.12 on the hinge shaft 21 of the valve cover 4.

In addition, the valve body 1 and the valve subsidiary body 2.3 are interposed between the sealing member 13 and the valve cover 4 to be fixed to the valve body 1 and the valve subsidiary body 2.3. Confidentiality is to be preserved.

According to the present invention configured as described above, two pairs of eccentric crank valves are symmetrically formed in the center of the drive gear 7 and the drive gear 7 provided on the motor output shaft 10 by operating the motor 9 according to the selection of the operation switch. As the Middle East gear 8 fixed to the shaft 5 is rotated, two pairs of rubber balls 6 provided at the tip of the eccentric crank valve shaft 5 perform a circular arc motion.

When the two pairs of rubber balls 6 are rotated by the rotational circular motion to block the outlet toilet 31.33 of the valve body as shown in FIG. 2, the contact switch of the control means causes the motor 9 to stop operating. The fluid introduced into each inlet port (41.42) flows through the outlet port (31.33).

In this state, the operation switch is operated again so that the operation of the motor 9 is the same as that of the electric operation, so that the eccentric crank valve shaft 5 is rotated 180 degrees and the contact switch of the control means stops the operation of the motor 9. The rubber ball 6 is stopped so that the fluid flowing into each inlet port 41.42 flows through the outlet port 3342 as shown in FIG.

[Effect of design]

As described above, the opening and closing device of the present invention includes two pairs of eccentric crank valve shafts connected to a motor and gears that rotate in one direction according to the operation of the operation switch, and rotatably installed at the tip thereof. Rubber ball 6 of the rotational circular motion by the 180 degrees rotational displacement to block the outlet port to the contrary because the two-way fluid flow can be controlled very easily at the same time.

Claims (4)

It is operated by an operation switch, and has a single drive motor fixed to the upper support and two pairs of driven gears coupled with drive gears provided on the output shaft of the motor, and hinges of the valve cover by various synchronous gears. Two pairs of eccentric crank valve shafts rotatably installed about the shaft and the eccentric crank valve shafts are rotatably installed so that the two pairs of outlet toilets in the valve body can be rotated and rotated 180 degrees. It is composed of a rubber ball and two hollow parts to block oppositely, and a valve body formed of one inlet port and two outlet ports on the same plane and one hollow part of each hollow part to form a valve body outlet port in the same direction. Four-way valve opening and closing device consisting of two pairs of valve auxiliary body connected to one. The four-way valve opening and closing device according to claim 1, wherein the valve body is formed of two hollow portions, and one inlet port and two outlet ports are formed on the same plane within each block of the rubber ball. The four-way valve opening and closing device of claim 1, wherein the rubber balls rotatably installed on the pair of eccentric crank valve shafts have a rotational deviation of 180 degrees, and always block the opposite outlet toilet seats of the valve body by a circular arc motion. . The four-way valve opening and closing device according to claim 2, wherein the pair of outlet ports in the same direction of the valve body are connected to one hollow portion and configured as one outlet port.