KR20240056212A - Ball valve assembly - Google Patents

Abstract

A ball valve assembly is disclosed. The ball valve assembly includes an actuator that generates rotational power by applying a control signal; a plate having one surface in a first direction that is detachably coupled to the actuator and having a shaft hole penetrating in the first direction; a shaft including one end and the other end in a first direction, the one end being coupled to the actuator to receive power from the actuator; A ball coupled to the other end of the shaft and rotated by the power of the actuator; and a seat housing that rotatably accommodates the ball and is coupled to the plate. The actuator, plate, shaft, ball, and seat housing are modularized, assembled together, and then detachably mounted on the manifold of the refrigerant module. It can be configured as follows.

Description

Ball valve assembly{BALL VALVE ASSEMBLY}

The present invention relates to a ball valve assembly, and more specifically, the body part of the valve is integrated into the manifold of the refrigerant module, the actuator and ball mounting parts are modularized to be detachable, and assembly is performed by assembling the modularized ball valve assembly to the manifold. It is about a ball valve assembly that is simple, reduces the number of parts, and is easy to maintain.

In general, air conditioning systems for automobiles include an air conditioning device that circulates refrigerant to heat or cool the interior of the automobile.

This air conditioning device maintains the temperature inside the car at an appropriate temperature regardless of external temperature changes to maintain a comfortable indoor environment. The refrigerant discharged by the compressor runs through the condenser, receiver dryer, expansion valve, and evaporator. It is configured to heat or cool the interior of the car through heat exchange by the evaporator in the process of circulating back to the compressor.

That is, when the air conditioner is in cooling mode in the summer, the high-temperature, high-pressure gaseous refrigerant compressed from the compressor is condensed through the condenser, passes through the receiver dryer and expansion valve, and evaporates in the evaporator to lower the indoor temperature and humidity.

Meanwhile, as interest in energy efficiency and environmental pollution issues grows day by day, there is a demand for the development of eco-friendly vehicles that can substantially replace internal combustion engine vehicles. These eco-friendly vehicles are usually electric vehicles driven by fuel cells or electricity. It is classified into hybrid vehicles that are driven by an engine and a battery.

Among these eco-friendly vehicles, electric vehicles or hybrid vehicles do not use separate heaters, unlike the air conditioning systems of regular vehicles, and the air conditioning devices applied to eco-friendly vehicles are usually referred to as heat pump systems.

Eco-friendly vehicles can only ensure motor performance by effectively removing heat generated from the fuel cell, battery, and/or motor. Accordingly, in eco-friendly vehicles according to the prior art, the heat pump system, the cooling device, and the battery cooling device must each be configured as separate sealed circuits to prevent heat generation in the battery including the motor, electrical components, and fuel cell.

Therefore, there is a disadvantage in that the size and weight of the refrigerant module placed at the front of the vehicle increases, and the layout of the connecting pipes that supply refrigerant or coolant to the heat pump system, cooling device, and battery cooling device in a small space becomes complicated. .

The refrigerant module is equipped with valves to control the flow and amount of refrigerant or coolant, and ball valves are one type of these valves. While the conventional ball valve inserts/mounts ball-mounted parts into the valve body in a first direction, the actuator is inserted/mounted in a second direction perpendicular to the first direction and connects to the ball-mounted parts. Accordingly, the assembly process was complicated and the actuator and ball mounting parts had to be maintained separately. In addition, since the valve body equipped with the actuator and ball mounting parts is assembled on the manifold, the inflow and outflow directions of the refrigerant or coolant form 180°. Although the ball valve discharges the refrigerant or coolant in a direction that is 90° to the inflow direction of the refrigerant or coolant, the remaining 90° must be compensated for within the valve body. Accordingly, the passage within the valve body was suddenly bent to 90°, increasing passage resistance.

The matters described in this background art section have been prepared to enhance understanding of the background of the invention, and may include matters that are not prior art already known to those skilled in the art in the field to which this technology belongs.

An embodiment of the present invention seeks to provide a ball valve assembly in which the body of the valve is integrated into the manifold of the refrigerant module, the actuator and the ball mounting parts are modularized to be detachable, and the modularized ball valve assembly can be assembled to the manifold.

A ball valve assembly according to embodiments of the present invention includes an actuator that generates rotational power by applying a control signal; a plate having one surface in a first direction that is detachably coupled to the actuator and having a shaft hole penetrating in the first direction; a shaft including one end and the other end in a first direction, the one end being coupled to the actuator to receive power from the actuator; A ball coupled to the other end of the shaft and rotated by the power of the actuator; and a seat housing that rotatably accommodates the ball and is coupled to the plate. The actuator, plate, shaft, ball, and seat housing are modularized, assembled together, and then detachably mounted on the manifold of the refrigerant module. It can be configured as follows.

In one aspect, the seat housing may include a pair of housing members each forming a ball seat and coupled to each other to form a spaced space in which the ball is rotatably seated.

Each housing member includes a ball seat formed on one surface in a second direction perpendicular to the first direction to correspond to the shape of the outer peripheral surface of the ball; an outlet communicating in a second direction at the center of the ball seat; an assembly protrusion extending to one side in a second direction; And it may include an assembly groove configured to engage assembly protrusions of other housing members.

A ring groove is formed around the outlet on the other side of each housing member in the second direction, and a leakage prevention ring can be inserted into the ring groove.

At least one ring protrusion may be formed on the outer surface of the leakage prevention ring.

Each housing member has a seat groove formed on one surface in a second direction perpendicular to the first direction, a mounting pillar extending to the other side in the first direction is formed on the other surface of the plate in the first direction, and the mounting pillar is formed in the first direction. A mounting protrusion protruding outward of the radius is formed at the other end, and the mounting protrusion is inserted into the seat groove so that the plate and the seat housing can be coupled.

In another aspect, the seat housing has a cylindrical shape with one side and the other side open in a first direction, and a ball mounting opening may be formed in one side to insert a ball in a second direction.

In the second direction, ball seats each having an outlet are disposed on one side and the other side of the ball, and one ball seat, a ball, and another ball seat are sequentially inserted through the ball mounting opening and then inserted into the ball mounting opening through the cap. It can be configured to prevent.

A leakage prevention ring may be installed between one ball seat and the cap and between the other ball seat and the seat housing to surround the outlet.

Additional outlets communicating with each outlet are formed on the cap and the other side of the seat housing in the second direction, and an additional ring is formed around the ball mounting opening on one side of the seat housing in the second direction and around the additional outlet on the other side of the seat housing. A groove is formed, and an additional anti-leakage ring can be mounted in the additional ring groove.

At least one ring protrusion may be formed on an outer surface of the leakage prevention ring and an outer surface of the additional leakage prevention ring.

According to embodiments, the diameter of the seat housing may gradually decrease as it moves toward the other side in the first direction.

An oil pocket is formed inside the shaft, one end of the oil pocket is blocked in a first direction, the other end of the oil pocket is open and can be blocked by a sealing member, an oil groove is formed on the outer peripheral surface of the shaft, and the oil pocket An oil passage communicating with the oil groove may be formed.

Sealing members may be mounted on the outer peripheral surfaces of the shaft on one side and the other side of the oil groove in the first direction, respectively.

According to the present invention, the actuator and ball mounting parts are detachably modularized and the modularized ball valve assembly is assembled into a manifold integrated with the valve body, thereby simplifying assembly, reducing the number of parts, and facilitating maintenance.

By integrating the valve body into the manifold of the refrigerant module, the passage resistance in the manifold can be reduced by preventing sharp bends.

In addition, the effects that can be obtained or expected due to the embodiments of the present invention will be disclosed directly or implicitly in the detailed description of the embodiments of the present invention. That is, various effects expected according to embodiments of the present invention will be disclosed in the detailed description to be described later.

Embodiments of the present specification may be better understood by referring to the following description in conjunction with the accompanying drawings, where like reference numerals designate identical or functionally similar elements.
1 is a schematic diagram of a refrigerant module to which a ball valve assembly according to embodiments of the present invention can be applied.
Figure 2 is an exploded view of the refrigerant module of Figure 1.
Figure 3 is a cross-sectional view of a ball valve assembly according to the first embodiment of the present invention.
Figure 4 is an exploded view of the ball valve assembly of Figure 3;
Figure 5 is a perspective view showing an example leakage prevention ring.
Figure 6 is a cross-sectional view of a ball valve assembly according to a second embodiment of the present invention.
Figure 7 is an exploded view of the ball valve assembly of Figure 6;
Figure 8 is a perspective view showing another example of a leakage prevention ring.
The drawings referenced above are not necessarily drawn to scale and should be understood as presenting a rather simplified representation of various preferred features illustrating the basic principles of the invention. The specific design features of the invention, including, for example, specific dimensions, orientation, location, and shape, will be determined in part by the particular intended application and usage environment.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein, singular forms are intended to also include plural forms, unless the context clearly indicates otherwise. The terms “comprise” and/or “comprising”, when used herein, specify the presence of stated features, integers, steps, operations, elements and/or components, but It will also be understood that this does not exclude the presence or addition of one or more of the features, integers, steps, operations, elements, components and/or groups thereof. As used herein, the term “and/or” includes any one or all combinations of the associated listed items.

According to an embodiment of the present invention, the actuator is bolted to the plate into which the shaft is inserted, the ball valve assembly is modularized by connecting the shaft to the ball assembled with the ball mounting parts, and the valve body is the modularized ball valve assembly. It can be assembled with bolts on the manifold of the integrated refrigerant module. Therefore, assembly can be simple, the number of parts can be reduced, and maintenance can be easy. Additionally, by integrating the valve body with the manifold of the refrigerant module, the passage resistance in the manifold can be reduced because the passage is not sharply bent.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

1 is a schematic diagram of a refrigerant module to which a ball valve assembly according to embodiments of the present invention can be applied. Figure 2 is an exploded view of the refrigerant module of Figure 1.

1 and 2, the refrigerant module 1 includes a manifold 2, a composite heat exchanger 4, a battery chiller 6, and a ball valve assembly 10. The refrigerant module 1 may include a number of valves and/or expansion valves in addition to these, but are not shown in this specification.

The manifold 2 includes refrigerant passages for cooling circuits and valve bodies for a plurality of valves, and the refrigerant passages and valve bodies may be formed integrally. In addition, the manifold (2) provides a bracket for mounting the composite heat exchanger (4) and the battery chiller (6), and provides a mounting groove (8) for mounting at least the ball valve assembly (10). The mounting groove 8 may communicate so that fluid flows through a refrigerant supply passage for supplying refrigerant to the ball valve assembly 10 and at least one refrigerant discharge passage for receiving refrigerant from the ball valve assembly 10. . In this specification, a three-way valve type ball valve assembly 10 in which two refrigerant discharge passages in the mounting groove 8 are connected to allow fluid to flow is illustrated, but the type of ball valve assembly 10 is not limited to this.

A composite heat exchanger (4) is mounted on the manifold (2). The refrigerant and coolant used in the cooling and heating circuit exchange heat with each other within the complex heat exchanger (4) for cooling and heating.

A battery chiller (6) is also mounted on the manifold (2). The refrigerant and coolant used in the battery cooling circuit exchange heat with each other to cool the battery.

The ball valve assembly (10) is mounted in the mounting groove (8) of the manifold (2). The ball valve assembly 10 may connect the refrigerant supply passage to one or more of the two refrigerant discharge passages, or may not connect to both refrigerant discharge passages. As previously described, the valve body for the ball valve assembly 10 is formed integrally with the manifold 2.

Hereinafter, the ball valve assembly 10 according to embodiments of the present invention will be described in more detail.

Figure 3 is a cross-sectional view of the ball valve assembly according to the first embodiment of the present invention, Figure 4 is an exploded view of the ball valve assembly of Figure 3, and Figure 5 is a perspective view showing an example of a leakage prevention ring.

As shown in Figures 3 and 4, the ball valve assembly 10 according to the first embodiment of the present invention includes an actuator 20, a plate 32, a shaft 50, a seat housing 70, and a ball. Includes (90).

Actuator 20 generates rotational power. The actuator 20 is provided with a connector 22 on one side to which a signal line and/or a power line for the actuator 20 are connected. The actuator 20 can rotate the shaft 50 according to a control signal received through a signal line using power supplied through a power line. A stopper 30 that can rotate around its center line is mounted inside the actuator 20, and the actuator 20 can rotate the stopper 30 according to a control signal.

The plate 32 is for assembling the seat housing 70 and the actuator 20 together. One surface (e.g., upper surface) of the plate 32 in the first direction (e.g., vertical direction in the drawing) is connected to the opposite surface (e.g., lower surface) of the actuator 20 by fastening means 40. It is detachably coupled through, and the other surface (eg, lower surface) of the plate 32 is coupled to the sheet housing 70 in a first direction. Additionally, the other surface of the plate 32 in the first direction is coupled to the manifold 2 through the fastening means 94. At this time, a sealing member 9 is installed between the other surface of the plate 32 and one surface of the manifold 2 in the first direction around the mounting groove 8 to prevent the refrigerant from leaking.

A shaft hole 34 is formed in the plate 32 penetrating from one side to the other side in a first direction, and a shaft 50 is mounted on the shaft hole 34. In the first direction, one end of the shaft 50 is exposed to the outside of the shaft hole 34 and is coupled to the stopper 30 inside the actuator 20 to receive rotational power from the stopper 30. On the other side of the plate 32 in the first direction, a cylindrical mounting pillar 36 extends around the shaft hole 34 to the other side (for example, lower side) in the first direction, and the mounting pillar 36 At the other end in the first direction, a mounting protrusion 38 is formed that protrudes radially outward. The shaft hole 34 extends inside the mounting pillar 36, and the other end of the shaft 50 in the first direction is exposed to the outside of the shaft hole 34 and is coupled to the ball 90.

At the other end of the shaft 50, which is located on the other side of the mounting protrusion 38 in the first direction, a shaft protrusion 42 protrudes outward radially, so that the shaft 50 is held by the stopper 30 and the shaft protrusion 42. Movement in the first direction can be prevented, and a washer 44 is disposed between the mounting protrusion 38 and the shaft protrusion 42 to allow the shaft 50 to rotate smoothly.

An oil pocket 52 is formed inside the shaft 50, and one end of the oil pocket 52 in the first direction is closed and the other end of the oil pocket 52 is open so that lubricating oil can be filled, and sealing It may be blocked by member 60. An oil groove 56 is formed on the outer peripheral surface of the shaft 50 at a position within the shaft hole 34, and an oil passage 54 is formed communicating the oil pocket 52 and the oil groove 56. Sealing members 58 are mounted on the outer peripheral surfaces of the shaft 50 on one side and the other side of the oil groove 56 in the first direction, respectively. Accordingly, the oil that flows into the oil groove 56 along the oil passage 54 moves to the gap between the outer peripheral surface of the shaft 50 and the inner peripheral surface of the shaft hole 34, thereby reducing rotational friction of the shaft 50. Additionally, oil that has moved into the gap between the outer peripheral surface of the shaft 50 and the inner peripheral surface of the shaft hole 34 is prevented from leaking out of the shaft hole 34 by the sealing member 58.

The seat housing 70 includes a pair of housing members 71 and 72 that can be detachably coupled to each other. Ball seats 86, 88 corresponding to the shape of the outer peripheral surface of the ball 90 are formed on one surface of each housing member 71, 72 in the second direction perpendicular to the first direction, so that the ball 90 is formed on the ball seat 86 , 88) Make sure it rotates smoothly on the table. That is, according to the first embodiment of the present invention, the ball seats 86 and 88 are integrally formed with each housing member 71 and 72. Outlets 73, 74 communicating in the second direction are formed in the central portion of each ball seat 86, 88, and each outlet 73, 74 allows fluid to flow into each refrigerant discharge passage formed in the manifold 2. It can be communicated so that it flows. According to the first embodiment of the present invention, since the valve body of the ball valve assembly 10 is formed integrally with the manifold 2, the flow direction of the refrigerant from the outlets 73 and 74 to the refrigerant discharge passage does not change drastically. Therefore, passage resistance can be reduced.

Ring grooves 77a and 77b are formed on the other surfaces of each housing member 71 and 72 in the second direction, respectively, around each outlet 73 and 74, and each ring groove 77a and 77b has a respective ring groove 77a and 77b. Leakage prevention rings (75, 76) are installed to prevent the refrigerant flowing through each outlet (73, 74) from leaking between each housing member (71, 72) and the manifold (2). As shown in Figure 5, at least one ring protrusion 84 is formed on the outer surface of each leakage prevention ring (75, 76) so that each leakage prevention ring (75, 76) has each ring groove (77a, 77b). Make sure it settles in.

An assembly groove 82 and an assembly protrusion 80 extending to one side in the second direction are formed on one surface of each housing member 71 and 72 in the second direction. The assembly protrusion 80 of one housing member 71 is coupled to the assembly groove 82 of the other housing member 72, so that the pair of housing members 71 and 72 are spaced apart from each other. At this time, the assembly protrusion 80 of the other housing member 72 is also coupled to the assembly groove 82 of one housing member 71. A ball 90 is disposed in the space between the pair of housing members 71 and 72.

Seat grooves 78a and 78b are formed on one surface of each housing member 71 and 72 in the second direction. When a pair of housing members 71 and 72 are coupled by combining the corresponding assembly protrusions 80 and assembly grooves 82, each seat groove 78a and 78b is provided with a mounting protrusion 38 of the plate 32. ) is inserted so that the sheet housing 70 is coupled to the plate 32.

The seat housing 70 has a shape whose diameter gradually decreases toward the other side in the first direction, and the mounting groove 8 of the manifold 2 also has a shape corresponding to the seat housing 70. Therefore, when the ball valve assembly 10 is mounted in the mounting groove 8 in the first direction, the leakage prevention rings 75 and 76 previously mounted on the seat housing 70 are damaged or the ring grooves 77a and 77b are damaged. It does not detach from.

The ball 90 is rotatably disposed in a space formed by combining a pair of housing members 71 and 72. The inside of the ball 90 is formed with an inlet passage communicating with the refrigerant supply passage of the manifold 2, and an outlet passage always communicating with the inlet passage and selectively communicating with each of the outlets 73 and 74. In addition, a ball groove 92 is formed on one side of the ball 90 in the first direction, and the other end of the shaft 50 in the first direction is coupled to the ball groove 92 to enable power transmission. Accordingly, when the actuator 20 operates, the ball 90 rotates by the stopper 30 and the shaft 50 that are coupled to each other to enable power transmission, and selectively rotates the ball 90 and the outlet ports 73 and 74. Selectively communicate or block outflow passages.

The process of assembling the ball valve assembly 10 according to the first embodiment of the present invention and the process of assembling the ball valve assembly 10 into the mounting groove 8 of the manifold 2 are briefly described as follows.

The stopper 30 is mounted on the actuator 20 so that the power of the actuator 20 can be transmitted to the stopper 30, the shaft 50 is mounted on the shaft hole 34, and the plate 32 is connected to a fastening means ( It is mounted on the other side of the actuator 20 in the first direction through 40). At this time, one end of the shaft 50 in the first direction is coupled to the stopper 30 to receive power.

The other end of the shaft 50 is coupled to the ball groove 92 of the ball 90 in the first direction, and a pair of housing members 71 and 72 are coupled with the ball 90 positioned between them. Assemble the ball valve assembly (10). At this time, the mounting protrusion 38 of the plate 32 is inserted into each seat groove 78a and 78b, so that the seat housing 70 is coupled to the plate 32.

A sealing member (9) is disposed around the mounting groove (8) of the manifold (2), the ball valve assembly (10) is inserted into the mounting groove (8) in the first direction, and the ball valve assembly (10) is inserted into the mounting groove (8) with the fastening means (94). Couple the valve assembly (10) to the manifold (2).

In this way, the ball valve assembly 10 according to the first embodiment of the present invention is modularized, assembled, and then assembled on the manifold 2 integrated with the valve body, thereby simplifying assembly and reducing the number of parts. In addition, maintenance is easy because the ball valve assembly 10 itself needs to be replaced. Furthermore, by integrating the valve body into the manifold (2), the flow direction of the refrigerant does not change sharply within the manifold (2), thereby reducing passage resistance.

Figure 6 is a cross-sectional view of a ball valve assembly according to a second embodiment of the present invention, Figure 7 is an exploded view of the ball valve assembly of Figure 6, and Figure 8 is a perspective view showing another example of a leakage prevention ring.

As shown in Figures 6 and 7, the ball valve assembly 10 according to the second embodiment of the present invention includes an actuator 20, a plate 32, a shaft 50, a seat housing 170, and a ball. Includes (90). The actuator 20, plate 32, shaft 50, and ball 90 according to the second embodiment of the present invention are the actuator 20, plate 32, and shaft according to the first embodiment of the present invention. (50), and its function is the same or very similar to that of the ball (90). Accordingly, detailed description of the actuator 20, plate 32, shaft 50, and ball 90 is omitted.

According to the second embodiment of the present invention, the seat housing 170 is formed in a cylindrical shape whose diameter gradually decreases from one side to the other in the first direction, and is hollow so that the ball 90 is mounted therein. . A shaft mounting opening 172 is formed in the center of one side of the seat housing 170 in the first direction, so that the other end of the shaft 50 passes through the shaft mounting opening 172 in the first direction to form a ball inside the seat housing 170. It can be coupled to the ball groove (92) of (90). The other side of the seat housing 170 is also opened in the first direction to communicate with the inlet passage inside the ball 90 and the refrigerant supply passage of the manifold 2.

A ball mounting opening 171 is formed on one surface of the seat housing 170 in the second direction, so that the ball 90 can be mounted in the seat housing 170 through the ball mounting opening 171. The ball mounting opening 171 may have a sufficient size to allow the ball 90 to be mounted within the seat housing 170. In addition, a cap 110 is provided to block the ball mounting opening 171 of the seat housing 170 to prevent the ball 90 in the seat housing 170 from being separated from the seat housing 170. For smooth rotation of the ball 90, a pair of ball seats 186 and 188 are installed inside the seat housing 170 with the ball 90 sandwiched between them. Therefore, one ball seat 188, a ball 90, and another ball seat 186 are sequentially mounted on the seat housing 170 through the ball mounting opening 171, and then the ball seat 188 is mounted on the cap 110. Block the mounting opening (171).

At the center of each of the ball seats 186 and 188, outlet ports 189a and 189b are formed, which communicate with the outlet passage inside the ball 90, between one ball seat 186 and the cap 110 and the other. Between the ball seat 188 and the seat housing 170, anti-leakage rings 175 and 176 are installed to surround the outlet ports 189a and 189b to form a space between one ball seat 186 and the cap 110. And it is possible to prevent oil from leaking between the other ball seat 188 and the seat housing 170. The leakage prevention rings 175 and 176 are similar to the leakage prevention rings 75 and 76.

Additional outlets 173 and 174 are formed on the other surface of the seat housing 170 in the second direction with respect to the cap 110 to communicate with each outlet 189a and 189b and each refrigerant discharge passage. In the second direction, an additional ring groove 178 is formed around the ball mounting opening 171 on one side of the seat housing 170 and around the additional outlet 174 on the other side of the seat housing 170, and an additional ring groove 178 ) is equipped with an additional leak prevention ring 177 to prevent the refrigerant flowing through each additional outlet (173, 174) from leaking between the seat housing (170) and the manifold (2). As shown in FIG. 8, at least one ring protrusion 184 is formed on the outer surface of the additional leakage prevention ring 177 so that the additional leakage prevention ring 177 is seated in the additional ring groove 178. In Figure 8, the additional leakage prevention ring 177 illustrates a form in which two additional leakage prevention rings are integrally connected, but the shape of the additional leakage prevention ring 177 is not limited to this. For example, the additional anti-leakage ring 177 can be configured similarly to the two anti-leakage rings 175 and 176. As shown in FIG. 8, if the additional leakage prevention ring 177 is formed integrally, it can be injected in a flat shape, thereby improving mass production.

The process of assembling the ball valve assembly 10 according to the second embodiment of the present invention and the process of assembling the ball valve assembly 10 into the mounting groove 8 of the manifold 2 are briefly described as follows.

The stopper 30 is mounted on the actuator 20 so that the power of the actuator 20 can be transmitted to the stopper 30, the shaft 50 is mounted on the shaft hole 34, and the plate 32 is connected to a fastening means ( It is mounted on the other side of the actuator 20 in the first direction through 40). At this time, one end of the shaft 50 in the first direction is coupled to the stopper 30 to receive power.

One ball seat 188, a ball 90, and another ball seat 186 are sequentially mounted on the seat housing 170 through the ball mounting opening 171, and the ball mounting opening (186) is placed through the cap 110. 171). The other end of the shaft 50 is coupled to the ball groove 92 of the ball 90 in the first direction. At this time, the mounting protrusion 38 of the plate 32 is coupled to the seat groove of the seat housing 170, so that the seat housing 170 is coupled to the plate 32.

A sealing member (9) is disposed around the mounting groove (8) of the manifold (2), the ball valve assembly (10) is inserted into the mounting groove (8) in the first direction, and the ball valve assembly (10) is inserted into the mounting groove (8) with the fastening means (94). Couple the valve assembly (10) to the manifold (2).

In this way, the ball valve assembly 10 according to the second embodiment of the present invention is assembled in a modular manner and then assembled on the manifold 2 integrated with the valve body, thereby simplifying assembly and reducing the number of parts. In addition, maintenance is easy because the ball valve assembly 10 itself needs to be replaced. Furthermore, by integrating the valve body into the manifold (2), the flow direction of the refrigerant does not change sharply within the manifold (2), thereby reducing passage resistance.

Although preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be easily modified by a person skilled in the art from the embodiments of the present invention to provide equivalent equivalents. Includes all changes within the scope deemed acceptable.

Claims (14)

An actuator that generates rotational power by applying a control signal;
a plate having one surface in a first direction that is detachably coupled to the actuator and having a shaft hole penetrating in the first direction;
a shaft including one end and the other end in a first direction, the one end being coupled to the actuator to receive power from the actuator;
A ball coupled to the other end of the shaft and rotated by the power of the actuator; and
a seat housing that rotatably accommodates the ball and is coupled to the plate;
Includes,
A ball valve assembly in which the actuator, plate, shaft, ball, and seat housing are modularized, assembled together, and then detachably mounted on the manifold of the refrigerant module. According to paragraph 1,
The seat housing is a ball valve assembly including a pair of housing members each forming a ball seat and coupled to each other to form a spaced space in which the ball is rotatably seated. According to paragraph 2,
Each housing member is disposed on one surface in a second direction perpendicular to the first direction.
A ball seat formed to correspond to the shape of the outer peripheral surface of the ball;
an outlet communicating in a second direction at the center of the ball seat;
an assembly protrusion extending to one side in a second direction; and
an assembly groove configured to engage assembly protrusions of different housing members;
A ball valve assembly comprising: According to paragraph 3,
A ball valve assembly in which a ring groove is formed around the outlet on the other side of each housing member in a second direction, and a leakage prevention ring is inserted into the ring groove. According to clause 4,
A ball valve assembly wherein at least one ring protrusion is formed on an outer surface of the leakage prevention ring. According to paragraph 2,
Each housing member has a seat groove formed on one surface in a second direction perpendicular to the first direction, a mounting pillar extending to the other side in the first direction is formed on the other surface of the plate in the first direction, and the mounting pillar is formed in the first direction. A ball valve assembly in which a mounting protrusion protruding outward of the radius is formed at the other end, and the mounting protrusion is inserted into the seat groove to couple the plate and the seat housing. According to paragraph 1,
The seat housing is a ball valve assembly whose diameter gradually decreases as it moves toward the other side in the first direction. According to paragraph 1,
A ball valve assembly wherein the seat housing has a cylindrical shape with one side and the other side open in a first direction, and a ball mounting opening is formed on one side to insert a ball in a second direction. According to clause 8,
In the second direction, ball seats each having an outlet are disposed on one side and the other side of the ball,
A ball valve assembly configured to sequentially insert one ball seat, a ball, and another ball seat through the ball mounting opening and then block the ball mounting opening with a cap. According to clause 9,
A ball valve assembly in which a leakage prevention ring is mounted between one ball seat and the cap and between the other ball seat and the seat housing to surround the outlet. According to clause 10,
Additional outlets communicating with each outlet are formed on the other side of the seat housing in the cap and the second direction, respectively,
A ball valve assembly in which an additional ring groove is formed around the ball mounting opening on one side of the seat housing in the second direction and around an additional outlet on the other side of the seat housing, and an additional leakage prevention ring is mounted on the additional ring groove. According to clause 11,
A ball valve assembly wherein at least one ring protrusion is formed on an outer surface of the leakage prevention ring and an outer surface of the additional leakage prevention ring. According to paragraph 1,
An oil pocket is formed inside the shaft, one end of the oil pocket is blocked in a first direction, the other end of the oil pocket is open and can be blocked by a sealing member, an oil groove is formed on the outer peripheral surface of the shaft, and the oil pocket A ball valve assembly in which an oil passage communicating with the oil groove is formed. According to clause 13,
A ball valve assembly in which sealing members are installed on one side of the oil groove and the outer peripheral surface of the shaft on the other side of the oil groove in the first direction.

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