JP2024030539A - integrated valve - Google Patents

Abstract

The present invention relates to an integrated valve that operates a plurality of valve bodies using a driving force generated by a single drive unit, and provides an integrated valve that can appropriately adjust the opening degree of each valve body. An integrated valve 1 includes a drive section 10, a plurality of valve bodies 54, and a switching mechanism section 30. The switching mechanism section 30 transmits the driving force generated by the driving section 10 to one of the valve bodies 54 included in the plurality of valve body sections 50, and also transmits the driving force of the driving section 10 to one of the plurality of valve bodies. It is configured to be switchable from among 54. The switching mechanism section 30 is arranged between the drive section 10 and the plurality of valve bodies 54, and includes a solenoid 31, a rotary plate 34, a power transmission section 45, a fixed plate 32, a biasing member 33, It has a positioning mechanism section 40. The positioning mechanism section 40 positions the relative position of the rotary plate 34 when the power transmission section 45 becomes capable of transmitting a driving force to one of the plurality of valve bodies 54. . [Selection diagram] Figure 2

Description

The present disclosure relates to an integrated valve that operates a plurality of valve bodies using a driving force generated by one driving section.

BACKGROUND ART Conventionally, a technique described in Patent Document 1 is known as a technique related to an integrated valve applied to a fluid circuit. The composite valve described in Patent Document 1 is formed by integrating a plurality of solenoid valves and expansion valves arranged in a fluid circuit, and the driving force generated by the drive device operates the valve body of the solenoid valve etc. It is carried out.

Specifically, in the composite valve of Patent Document 1, a plurality of valve bodies of an on-off valve and a valve body of an expansion valve are arranged with respect to a first actuator member etc. that move forward and backward by a driving force generated by a drive device. Therefore, in the composite valve of Patent Document 1, the opening degrees of a plurality of on-off valves and expansion valves can be adjusted by the driving force generated by the driving device.

Japanese Patent Application Publication No. 2020-034178

However, the technique disclosed in Patent Document 1 has a configuration in which the valve bodies of a plurality of on-off valves and the valve bodies of an expansion valve are disposed on one shaft constituted by the first actuator member and the like. For this reason, it is assumed that the opening adjustment operation for one valve body will affect the opening of other valve bodies, making it difficult to appropriately adjust the opening of each valve body. Ru.

In other words, the configuration of the fluid circuit to which Patent Document 1 can be applied and the types of multiple valve bodies constituting the integrated valve are such that the opening adjustment operation for one valve body affects the opening degree of other valve bodies. It is limited to those that do not cause problems even if given.

In view of the above points, the present disclosure relates to an integrated valve that operates a plurality of valve bodies using a driving force generated by one driving part, and provides an integrated valve that can appropriately adjust the opening degree of each valve body. The purpose is to

The integrated valve according to one aspect of the present disclosure includes a drive section (10), a plurality of valve bodies (54), and a switching mechanism section (30). The drive section generates driving force. The plurality of valve bodies are arranged in a flow path through which fluid flows, and adjust the flow rate of the fluid flowing through the flow path. The switching mechanism section transmits the driving force generated in the drive section to one of the valve bodies included in the plurality of valve bodies, and also enables switching of the transmission destination of the drive force of the drive section from among the plurality of valve bodies. It is configured.

The switching mechanism section is arranged between the drive section and the plurality of valve bodies, and includes a solenoid (31), a rotary plate (34), a power transmission section (45), and a fixed plate (32). , a biasing member (33), and a positioning mechanism section (40). A solenoid generates electromagnetic force when energized. The rotary plate is configured to be movable by electromagnetic force generated in a solenoid along a drive shaft (11) to which the driving force of the drive unit is output, and is arranged to be rotatable about the drive shaft.

The power transmission section transmits driving force to one of the plurality of valve bodies when the rotating plate is placed at a predetermined position. The fixed plate is formed integrally with the drive shaft, and transmits driving force to the rotating plate when it comes into contact with the rotating plate by electromagnetic force. The biasing member applies a biasing force to the rotating plate in a direction away from the solenoid. The positioning mechanism section positions the relative position of the rotary plate when the power transmission section becomes capable of transmitting a driving force to one of the plurality of valve bodies.

According to the integrated valve, the driving force generated by the drive unit can be transmitted to one of the valve bodies included in the plurality of valve bodies to operate the valve body through the switching mechanism. In addition, since the switching mechanism section includes a solenoid, a rotary plate, and a power transmission section, the integrated valve can switch between transmitting the driving force to any one of the plurality of valve bodies, and transmitting the driving force to the other valve bodies. Driving force can be transmitted to one valve body without any influence.

Furthermore, since the switching mechanism includes a fixed plate, a biasing member, and a positioning mechanism, the integrated valve can transmit the driving force to the changed valve body even if the output destination of the driving force is changed. can be done. That is, the integrated valve can transmit driving force to one valve element without affecting the opening degrees of other valve elements, and can adjust the opening degree to a desired degree. As a result, the integrated valve can arbitrarily transmit the driving force to each of the multiple valve bodies using the driving force generated by one driving part, and achieves appropriate opening adjustment for each. be able to.

Note that the reference numerals in parentheses of each means described in this column and the claims indicate correspondence with specific means described in the embodiment described later.

FIG. 2 is a horizontal sectional view of the integrated valve according to the first embodiment. FIG. 2 is an explanatory diagram showing the internal configuration of the integrated valve according to the first embodiment. FIG. 3 is an explanatory diagram regarding the operation of the integrated valve according to the first embodiment. It is a horizontal sectional view of the integrated valve concerning a 2nd embodiment. FIG. 7 is an explanatory diagram showing the internal configuration of an integrated valve according to a second embodiment. It is an enlarged view of the positioning mechanism part in the integrated valve based on 2nd Embodiment. It is an explanatory view showing the internal structure of the integrated valve concerning a 3rd embodiment. It is an enlarged view of the positioning mechanism part in the integrated valve based on 3rd Embodiment. It is a horizontal sectional view of the integrated valve concerning a 4th embodiment. It is a horizontal sectional view of the integrated valve concerning a 5th embodiment. It is an explanatory view showing the internal structure of the integrated valve concerning a 5th embodiment.

Hereinafter, a plurality of embodiments for carrying out the present disclosure will be described with reference to the drawings. In each embodiment, parts corresponding to matters explained in the preceding embodiment may be given the same reference numerals and redundant explanations may be omitted. When only part of the configuration is described in each embodiment, the other embodiments described previously can be applied to other parts of the configuration. It is not only possible to combine parts of each embodiment that specifically indicate that they can be combined, but also to partially combine parts of the embodiments even if it is not explicitly stated, as long as there is no particular problem with the combination. is also possible.

(First embodiment)
A first embodiment of the present disclosure will be described with reference to the drawings. The integrated valve 1 according to the present disclosure is configured by integrating a plurality of valves arranged in a fluid circuit such as a refrigerant circuit or a heat medium circuit. The integrated valve 1 according to the first embodiment is applied to a refrigerant circuit that constitutes a refrigeration cycle of an air conditioner.

As shown in FIGS. 1 and 2, the integrated valve 1 according to the first embodiment includes a main body portion including an upper housing 20, a housing 21, and a lower housing 22, a drive section 10, a switching mechanism section 30, and a plurality of It has a valve body part 50.

Note that FIG. 1 is a horizontal sectional view showing the switching mechanism section 30 of the integrated valve 1 according to the first embodiment. FIG. 2 is a sectional view showing the internal configuration of the integrated valve 1 according to the first embodiment, taken along the line II-II in FIG.

As shown in FIG. 2, the drive unit 10 is disposed on one side of an upper housing 20, a housing 21, and a lower housing 22, and includes a drive shaft 11 and a drive gear 12. The drive unit 10 is composed of, for example, a stepping motor. The drive unit 10 is attached to one side of the upper housing 20 and transmits driving force to any valve body 50 via the drive shaft 11, the drive gear 12, and the switching mechanism 30.

The drive shaft 11 is an output shaft to which the driving force generated when the drive unit 10 is energized is output. The drive gear 12 is a gear fixed to the end of the drive shaft 11 and rotates as the drive shaft 11 rotates. The drive gear 12 constitutes a part of a power transmission section 45, which will be described later. Further, the drive section 10 includes a control section 60. The control unit 60 controls the operation of the drive unit 10 and the solenoid 31 in the integrated valve 1 .

In the following description, the direction in which the drive unit 10 is arranged with respect to the upper housing 20 etc. is one side of the integrated valve 1 and the components of the integrated valve 1, and the direction in which the drive unit 10 is arranged with respect to the upper housing 20 etc. and the opposite side is the other side. As shown in the drawings, one side of the integrated valve 1 etc. will be described as an upper side, and the other side of the integrated valve 1 etc. will be described as a lower side.

The upper housing 20, the housing 21, and the lower housing 22 are each made of a metal block such as aluminum, and constitute the main body portion of the integrated valve 1. In the integrated valve 1, a main body portion is constructed by connecting an upper housing 20, a housing 21, and a lower housing 22, respectively.

As shown in FIG. 2, a shaft hole is formed in the upper surface of the upper housing 20, into which the drive shaft 11 of the drive section 10 is inserted. In the upper housing 20, a solenoid 31 is arranged around the drive shaft 11 inserted into the shaft hole. The solenoid 31 generates electromagnetic force when energized.

A switching mechanism section 30 is arranged in a space formed between the upper housing 20 and the housing 21. The switching mechanism section 30 is a mechanism section for switching the transmission destination of the driving force outputted via the drive shaft 11 to any one of the plurality of valve body sections 50. The configuration of the switching mechanism section 30 will be specifically explained later.

A plurality of valve body parts 50 are formed in the housing 21 and the lower housing 22. In the integrated valve 1 according to the first embodiment, four valve body parts 50 are formed, and as shown in FIG. 1, a first valve body part 50a, a second valve body part 50b, and a third valve body part 50c and a fourth valve body portion 50d. The first to fourth valve body parts 50a to 50d are arranged around the drive shaft 11 at predetermined intervals.

Note that the first valve body portion 50a to the fourth valve body portion 50d in the first embodiment all function as an expansion valve disposed in the refrigeration cycle. However, the plurality of valve bodies 50 in the present disclosure are not limited to expansion valves, and various valve devices such as on-off valves and flow rate adjustment valves can be applied.

Here, the specific configuration of the valve body part 50 in the integrated valve 1 will be explained using the first valve body part 50a as an example. As shown in FIG. 2 etc., the valve body part 50 includes a valve body gear 51, a valve body shaft 52, a shaft seal 53, a valve body 54, an inflow passage 55, a valve chamber 56, a valve seat 57, and an outflow passage 58. ing.

The valve gear 51 is arranged in a space formed between the upper housing 20 and the housing 21, and constitutes a part of the switching mechanism section 30 and the power transmission section 45. The valve body gear 51 is fixed to an end of a valve body shaft 52 that is inserted into a shaft hole formed in the housing 21 and the lower housing 22. A shaft seal 53 is disposed in the shaft hole formed in the housing 21, and seals the space between the shaft hole and the valve body shaft 52. When the driving force is transmitted to the valve gear 51, the valve shaft 52 rotates together with the valve gear 51.

A valve body 54 is attached to the other end side of the valve body shaft 52. The valve body 54 is coupled to the valve body shaft 52 by a threaded portion (not shown). The rotation direction of the valve body 54 is regulated by a rotation stopper provided on the lower housing 22, and is arranged so as to be movable in the axial direction (vertical direction) of the valve body shaft 52. Therefore, as the valve body shaft 52 rotates, the valve body 54 moves forward and backward in the axial direction of the valve body shaft 52. The valve body 54 is located inside a valve chamber 56 formed in the lower housing 22 that constitutes the valve body portion 50. An inflow passage 55 connected to a valve chamber 56 and a valve seat 57 are formed in the lower housing 22 of the valve body portion 50 .

The inflow path 55 is a flow path through which fluid (ie, refrigerant in the refrigeration cycle) flows into the valve chamber 56 . The outflow path 58 is a flow path through which fluid (ie, refrigerant in the refrigeration cycle) flows out from the valve chamber 56 .

A valve seat 57 is arranged at a connection portion of the outflow passage 58 to the valve chamber 56 . The valve seat 57 is arranged along the axis of the valve body shaft 52 and is configured to be able to come into contact with the valve body 54 as the valve body 54 moves forward and backward. That is, in the valve body portion 50, the opening degree of the valve seat 57 can be adjusted by moving the valve body 54 as the valve body shaft 52 advances and retreats.

Next, a specific configuration of the switching mechanism section 30 in the integrated valve 1 will be described with reference to FIGS. 1 and 2. The switching mechanism section 30 is a mechanism section for switching the transmission destination of the driving force generated by the drive section 10 to any one of the plurality of valve body sections 50, and includes a solenoid 31, a fixed plate 32, a biasing member 33, a rotation It has a plate 34, a power transmission section 45, and a positioning mechanism section 40.

The switching mechanism section 30 of the integrated valve 1 according to the first embodiment includes a rotary plate 34. As shown in FIG. 2, the rotary plate 34 is penetrated by the drive shaft 11 and is attached so as to be slidable along the drive shaft 11. Further, the rotary plate 34 is arranged to be rotatable around the drive shaft 11.

As described above, when the solenoid 31 disposed on the upper housing 20 side is energized, electromagnetic force is generated. The rotary plate 34 is attracted upward along the drive shaft 11 by the electromagnetic force generated in the solenoid 31 .

As shown in FIG. 2 and the like, the rotating plate 34 has an idler gear 38 and a support shaft 37. The idler gear 38 is attached to the rotating plate 34 so as to be located between the drive gear 12 and the plurality of valve body gears 51, and is rotatably supported by a support shaft 37 attached to the rotating plate 34.

As shown in FIG. 1, when the idler gear 38 is in a position where it engages with the drive gear 12 and one valve body gear 51, the idler gear 38 decelerates the driving force transmitted from the drive gear 12 to one valve body gear 51. The signal is transmitted to gear 51.

The rotating plate 34 has a pin 39 at a position different from that of the idler gear 38 and the support shaft 37. By fitting into the recess 41 formed in the housing 21, the pin 39 can stop the rotational movement of the rotary plate 34 and transmit the driving force from the drive gear 12 to any one of the valve body gears 51. It constitutes a part of the positioning mechanism section 40 that positions the state.

As shown in FIG. 2, a fixed plate 32 is disposed between the upper housing 20 and the upper surface of the rotary plate 34. The fixed plate 32 is formed integrally with the drive shaft 11. The fixed plate 32 transmits the driving force output from the drive shaft 11 to the rotary plate 34 when it comes into contact with the upper surface of the rotary plate 34 . The fixed plate 32 has a structure corresponding to a so-called disk clutch.

A biasing member 33 is arranged between the upper housing 20 and the rotary plate 34. The biasing member 33 is formed of a coil spring, and is disposed so as to be inserted through the drive shaft 11 . The biasing member 33 applies a biasing force downwardly to the rotating plate 34 so as to move away from the solenoid 31 .

As shown in FIGS. 1 and 2, the power transmission section 45 includes a valve gear 51 of any one of the plurality of valve bodies 50, an idler gear 38, and a drive gear 12. With the idler gear 38 in mesh with the drive gear 12 and the valve gear 51, the driving force output from the drive gear 12 is transmitted to the valve gear 51 via the idler gear 38. The driving force from the drive gear 12 is reduced in speed and transmitted to the valve gear 51 via the idler gear 38 .

Incidentally, when the rotary plate 34 is disposed at a predetermined position, as shown in FIG. It means a state of engagement.

The positioning mechanism section 40 according to the first embodiment includes a pin 39 attached to the rotary plate 34 and a plurality of recesses 41 formed in the housing 21. The positioning mechanism section 40 adjusts the position of the rotating plate 34 so that the idler gear 38 is meshed between the drive gear 12 and the specific valve gear 51 by fitting the pin 39 into a specific recess 41. Position.

The plurality of recesses 41 correspond to the first to fourth valve body parts 50a to 50d, respectively. In the example shown in FIG. 1, the recess 41 into which the pin 39 is fitted corresponds to the first valve body 50a, and the idler gear 38 is connected to the drive gear 12 and the valve body gear 50 of the first valve body 50a. The relative positions of the rotary plates 34 are determined so that they are in a mutually meshed state between them.

In the integrated valve 1 according to the first embodiment, the switching mechanism section 30 configured as described above can switch the transmission destination of the driving force from the drive section 10 to any one of the plurality of valve body sections 50. It is composed of

Next, the switching operation of the driving force transmission destination in the integrated valve 1 according to the first embodiment will be described with reference to the drawings. The switching operation of the driving force transmission destination in the integrated valve 1 includes a blocking operation that cuts off the transmission of driving force to the original transmission destination, and a switching operation to the desired transmission destination with the transmission of driving force to the transmission destination cut off. This includes a changing operation to change the driving force, and a connecting operation to make it possible to transmit the driving force to the desired transmission destination.

First, the connection state of the switching mechanism section 30 will be explained with reference to FIGS. 1 and 2. Note that although FIGS. 1 and 2 show the state of connection to the first valve body 50a, this is merely an example of the connection state, and the state of connection to the second to fourth valve body parts 50b to 50d is driven. The situation is similar except that the destination of the force is different.

When the switching mechanism section 30 is connected, the solenoid 31 is not energized, and the rotary plate 34 is positioned with the pin 39 fitted into the recess 41. At this time, the idler gear 38 attached to the rotating plate 34 is located between the drive gear 12 and one valve gear 51 (in this case, the valve gear 51 of the first valve body part 50a) and meshes with each other. state.

At this time, the rotating plate 34 is positioned relative to the housing 21 and the like, while being able to move relative to the drive shaft 11. In other words, the rotary plate 34 is positioned and the drive shaft 11 can be rotated with the relative positional relationship of the drive shaft 11, idler gear 38, and valve gear 51 fixed.

Next, a disconnection operation for changing the switching mechanism section 30 from the connected state to the disconnected state will be described with reference to FIGS. 2 and 3. The cutoff operation is performed in a state where the output of the driving force by the drive unit 10 is stopped. In the cutoff operation, the control unit 60 energizes the solenoid 31 and generates electromagnetic force in the solenoid 31 .

The rotary plate 34 is attracted by the electromagnetic force generated in the solenoid 31 and moves upward along the drive shaft 11 while opposing the biasing force of the biasing member 33 . At this time, since the pin 39 of the rotary plate 34 comes out of the recess 41 of the housing 21, the positioning of the rotary plate 34 by the positioning mechanism section 40 is released.

Then, the upper surface of the rotary plate 34 that has moved along the drive shaft 11 comes into contact with the fixed plate 32. Since the fixed plate 32 is formed integrally with the drive shaft 11, the rotary plate 34 becomes rotatable together with the drive shaft 11 through contact with the fixed plate 32.

As shown in FIG. 3, when the rotating plate 34 moves upward, the idler gear 38 disposed on the rotating plate 34 also moves upward. As a result, the idler gear 38 moves from between one of the valve body gears 51 and the drive gear 12, so the transmission path for transmitting the driving force of the drive gear 12 to the valve body gear 51 is cut off.

Next, the changing operation performed when the switching mechanism section 30 is in the cut-off state will be described with reference to FIG. 3. The changing operation is an operation of rotating the rotary plate 34 around the drive shaft 11 by the driving force of the drive unit 10 in the cut-off state shown in FIG. 3 to select a desired transmission destination.

As described above, in the cut-off state, the positioning of the rotating plate 34 by the positioning mechanism section 40 is released, and the fixed plate 32 is in contact with the upper surface of the rotating plate 34. Thereby, the rotary plate 34 can be rotated about the drive shaft 11 as the drive shaft 11 rotates.

As shown in FIG. 1, the valve body gears 51 of the plurality of valve body parts 50 are arranged around the drive shaft 11 at predetermined intervals, so that the rotary plate 34 is rotated around the drive shaft 11. By doing so, a desired valve body portion 50 can be selected. In the changing operation, the control section 60 controls the drive section 10, and the amount of rotation of the drive shaft 11 by the drive section 10 is controlled so as to select the desired valve body section 50.

Next, a connection operation for transmitting the driving force to the selected valve body portion 50 after the changing operation is completed will be described. In the connection operation, the control unit 60 cuts off the current to the solenoid 31 that is in the energized state.

As a result, the electromagnetic force of the solenoid 31 is eliminated, and the rotary plate 34 is moved downward along the drive shaft 11 by the urging force of the urging member 33. When the pin 39 fits into the recess 41 as the rotary plate 34 moves, the relative position of the rotary plate 34 with respect to the housing 21 is determined.

Then, due to the downward movement of the rotating plate 34, the rotating plate 34 is separated from the fixed plate 32. This allows relative movement between the rotary plate 34 and the drive shaft 11, so that the drive shaft 11 can be rotated while the rotary plate 34 is positioned relative to the housing 21.

Furthermore, when the pin 39 fits into the recess 41, the idler gear 38 of the rotary plate 34 meshes with the drive gear 12 and the valve body gear 51 of the valve body portion 50 selected in the changing operation. Therefore, when the drive shaft 11 is rotated with the relative position of the rotating plate 34 relative to the housing 21 being determined, the driving force from the drive gear 12 is applied to the valve body selected by the changing operation via the idler gear 38. The signal is transmitted to the valve gear 51 of the section 50.

Thereby, the integrated valve 1 can adjust the driving force transmitted to the valve body gear 51, so that the valve opening degree of the selected valve body part 50 can be adjusted appropriately. Further, in the integrated valve 1, when transmitting the driving force from the drive section 10 to a desired valve body section 50, the idler gear 38 does not mesh with the valve body gear 51 of another valve body section 50. . Therefore, according to the integrated valve 1, the valve opening degree of the valve body part 50 can be appropriately adjusted by the driving force of one driving part 10. Moreover, the adjustment operation of the valve opening degree of one valve body part 50 among the plurality of valve body parts 50 does not affect the valve opening degree of the other valve body parts 50.

Therefore, the integrated valve 1 can arbitrarily transmit the driving force to each of the first valve body part 50a to the fourth valve body part 50d using the driving force generated by one driving part 10. , it is possible to realize appropriate opening adjustment for each.

As explained above, the integrated valve 1 according to the first embodiment includes the drive section 10, the switching mechanism section 30, and the plurality of valve body sections 50. The switching mechanism section 30 includes a solenoid 31, a fixed plate 32, a biasing member 33, a rotary plate 34, a power transmission section 45, and a positioning mechanism section 40.

According to the integrated valve 1, the driving force generated by the drive unit 10 can be transmitted to one valve body 54 included in the plurality of valve body parts 50 via the switching mechanism part 30 to cause the valve body 54 to operate. Furthermore, since the switching mechanism section 30 includes the solenoid 31, the rotary plate 34, and the power transmission section 45, the integrated valve 1 can switch whether or not the driving force is transmitted to any one of the plurality of valve bodies 54. . Therefore, the integrated valve 1 can transmit driving force to one valve body 54 without affecting the opening degrees of other valve bodies 54.

Furthermore, since the switching mechanism section 30 includes the fixing plate 32, the biasing member 33, and the positioning mechanism section 40, the integrated valve 1 can switch between the connected state and the disconnected state, as shown in FIGS. 2 and 3. can. Even when the destination of the driving force is changed, the integrated valve 1 can transmit the driving force to the changed valve body.

That is, the integrated valve 1 can transmit driving force to one valve body 54 without affecting the opening degrees of other valve bodies 54, and can adjust the opening degree to a desired degree. As a result, the integrated valve 1 can arbitrarily transmit the driving force to each of the plurality of valve bodies 54 using the driving force generated by one drive unit 10, and appropriately adjust the opening degree for each. can be realized.

Further, in the switching mechanism section 30 of the integrated valve 1 according to the first embodiment, the power transmission section 45 includes the drive gear 12, the idler gear 38, and a valve body gear that constitutes any one of the plurality of valve body sections 50. 51. The idler gear 38 reduces the speed of the driving force output from the drive gear 12 and transmits it to the valve gear 51.

Thereby, the configuration of the drive gear 12, idler gear 38, and valve gear 51 in the power transmission section 45 makes it possible to increase the torque acting on the valve gear 51. In other words, since it is possible to reduce the torque required for the drive unit 10, the drive unit 10 that constitutes the integrated valve 1 can be downsized.

Furthermore, in the switching mechanism section 30 of the integrated valve 1 according to the first embodiment, the positioning mechanism section 40 is constituted by a pin 39 disposed on the rotary plate 34 and a recess 41 formed in the housing 21. . As shown in FIGS. 1 to 3, the positioning mechanism section 40 positions the relative position of the rotating plate 34 and the position of the idler gear 38 with respect to the valve body gear 51 when the pin 39 is fitted into the recess 41.

Thereby, according to the integrated valve 1, it is possible to secure a driving force transmission path composed of the drive gear 12, the idler gear 38, and the valve body gear 51, and the valve body 54 can be reliably operated. In addition, since it is possible to prevent the rotary plate 34 from rotating due to the action of the reaction force when transmitting the driving force through the drive gear 12, idler gear 38, and valve body gear 51, it is possible to prevent the rotating plate 34 from rotating. This can contribute to the transmission of driving force.

(Second embodiment)
Next, a second embodiment different from the above-described embodiment will be described with reference to FIGS. 4 to 6. In the second embodiment, the configuration of the positioning mechanism section 40 in the switching mechanism section 30 is different from the first embodiment. Therefore, the positioning mechanism section 40 according to the second embodiment will be described in detail. The other configurations related to the integrated valve 1 are the same as those in the first embodiment, and therefore, repeated explanations regarding the other configurations will be omitted.

As shown in FIGS. 4 and 5, the integrated valve 1 according to the second embodiment includes a positioning mechanism section 40 in the switching mechanism section 30, similarly to the first embodiment. The positioning mechanism section 40 according to the second embodiment includes a pin 39 arranged on the rotary plate 34 and a plurality of recesses 41 formed in the housing 21, as well as a guide section 42 arranged around each recess 41. have.

In the positioning mechanism section 40 according to the second embodiment, the pin 39 is arranged on the rotary plate 34 similarly to the first embodiment. Further, similarly to the first embodiment, the recess 41 is formed to be able to fit the pin 39 of the rotating plate 34, and corresponds to any one of the first valve body portion 50a to the fourth valve body portion 50d. are doing.

The positioning mechanism section 40 according to the second embodiment also has a mechanism in which the idler gear 38 is brought into a state of meshing between the drive gear 12 and the specific valve gear 51 by fitting the pin 39 into the specific recess 41. The position of the rotating plate 34 is determined.

The guide portion 42 is disposed around the opening edge of each recess 41 on the surface of the housing 21 and guides the tip of the pin 39 that moves while contacting the surface of the housing 21 into the recess 41 .

Specifically, as shown in FIGS. 5 and 6, each guide portion 42 has an inclined portion 42a. The inclined portion 42a is inclined such that the shorter the distance from the recessed portion 41 located at the center of the guide portion 42, the lower the inclined portion 42a is located. Therefore, by performing the operation with the tip of the pin 39 in contact with the inclined portion 42a, the pin 39 can be guided inside the recess 41, and the positioning mechanism portion 40 can easily position the rotary plate 34. Can be done.

5 and 6, the inclined angle of the inclined portion 42a of the guide portion 42 is shown to be a constant inclined angle, but the present invention is not limited to this aspect. The inclination angle of the inclination part 42a is preferably such that the surface of the housing 21 is closer to the bottom as it approaches the recessed part 41, but it may be configured with a plurality of types of inclination angles, or the inclination angle may be made smooth. A curved surface may be formed by changing.

In the integrated valve 1 according to the second embodiment, in order to utilize the guide section 42, the operation control of the drive section 10 and the solenoid 31 is performed by the control section 60 during the changing operation and the connecting operation.

First, it is assumed that a change operation to the target recess 41 (hereinafter referred to as target recess) is being performed. That is, in the operation of changing to the target recess, the control section 60 operates the drive section 10 to rotate the rotary plate 34 together with the drive shaft 11. At this time, the control unit 60 can obtain the drive amount of the drive unit 10 (that is, the rotation amount of the rotary plate 34) using a control pulse or the like.

If it is determined using a control pulse or the like that the pin 39 of the rotary plate 34 is located above the boundary of the guide portion 42 related to the target recess, the control unit 60 cuts off the power supply to the solenoid 31 . As a result, the electromagnetic force in the solenoid 31 disappears, so the pin 39 of the rotary plate 34 comes into contact with the boundary portion of the guide portion 42 related to the target recess on the surface of the housing 21.

Then, by de-energizing the drive section 10 while the pin 39 is in contact with the surface of the housing 21, the pin 39 is caused to follow the inclined portion 42a of the guide section 42 due to the biasing force of the biasing member 33. It is guided to the recess 41. As a result, the pin 39 fits inside the target recess, so that the rotary plate 34 can be positioned in a state where the driving force can be transmitted to the target valve body part 50.

By controlling the operation of the drive unit 10 and the solenoid 31 described above during the changing operation and the connection operation, high accuracy is required regarding the timing of cutting off the energization to the solenoid 31 and the timing of controlling the drive unit 10. There is no need to do so. That is, the control burden related to drive control of the drive unit 10 and the solenoid 31 can be reduced.

Further, when the changing operation and the connecting operation are performed according to the above drive control, the idler gear 38 does not ride on the valve body gear 51, and each gear constituting the power transmission section 45 can be meshed, and the power transmission section 45 transmission of driving force can be realized. Since the idler gear 38 is rotatably supported by the support shaft 37, the idler gear 38 rotates about the support shaft 37 even when it does not mesh with the drive gear 12 or the valve gear 51. Thereby, the integrated valve 1 can create a state in which the valve body gear 51 and the idler gear 38 are engaged with each other.

As explained above, according to the integrated valve 1 according to the second embodiment, even when the guide section 42 is provided as the positioning mechanism section 40 of the switching mechanism section 30, the same configuration and operation as in the above-described embodiment make it possible to operate the integrated valve 1 according to the second embodiment. It is possible to obtain the desired effects.

In addition, as shown in FIG. 6 etc., by arranging a guide portion 42 having an inclined portion 42a around the recess 41 in the positioning mechanism portion 40, the pin 39 can be easily moved when changing and connecting the integrated valve 1. can be reliably fitted into the recess 41. That is, the integrated valve 1 can reliably switch the transmission destination of the driving force.

Furthermore, according to the integrated valve 1, each gear forming the power transmission section 45 can be reliably engaged during the changing operation and the connecting operation of the integrated valve 1, and the switching operation can be performed reliably. Moreover, according to the integrated valve 1, the control burden on the drive unit 10 and the solenoid 31 during changing operations and connecting operations can be reduced.

(Third embodiment)
Next, a third embodiment different from the above-described embodiment will be described with reference to FIGS. 7 and 8. The integrated valve 1 according to the third embodiment is different from the above-described embodiments in the configurations of the switching mechanism section 30 and the positioning mechanism section 40. The other configurations of the integrated valve 1 according to the third embodiment (for example, the drive section 10, the plurality of valve body sections 50, etc.) are the same as those of the above-described embodiment, and therefore will not be described again.

As shown in FIG. 7, a rotating plate 34 including a solenoid plate 35 and a rotating plate 36 is arranged in the switching mechanism section 30 of the integrated valve 1 according to the third embodiment. The solenoid plate 35 constitutes the upper part of the rotary plate 34 and is attached so as to be movable in the vertical direction along the drive shaft 11. A plurality of holes 43 forming a positioning mechanism section 40 according to the third embodiment are formed in the solenoid plate 35. The plurality of holes 43 correspond to the first to fourth valve body parts 50a to 50d, respectively.

The rotating plate 36 constitutes the lower part of the rotating plate 34, and is attached to be movable in the vertical direction along the drive shaft 11, and is also arranged to be rotatable about the drive shaft 11. A support shaft 37 and an idler gear 38 are attached to the rotating plate 36. The support shaft 37 and idler gear 38 are the same as in the embodiment described above.

Furthermore, a pin 39 is arranged on the rotation plate 36. By inserting the pin 39 through the hole 43 formed in the solenoid plate 35, the pin 39 can stop the rotation of the rotating plate 36 and transmit the driving force from the drive gear 12 to any one of the valve gears 51. position in a suitable condition.

In the drive shaft 11 of the integrated valve 1 according to the third embodiment, a fixed plate 32 is disposed below the solenoid plate 35 and above the rotating plate 36. The fixed plate 32 has the same configuration as the embodiment described above, and rotates together with the drive shaft 11. The fixed plate 32 according to the third embodiment transmits the driving force output from the drive shaft 11 to the rotating plate 36 when it comes into contact with the upper surface of the rotating plate 36 .

A biasing member 33 is arranged between the upper housing 20 and the solenoid plate 35. The biasing member 33 is formed of a coil spring, and is disposed so as to be inserted through the drive shaft 11 . The biasing member 33 applies a biasing force downwardly to the rotating plate 36 so as to move away from the solenoid 31 .

Further, an elastic member 33a is arranged between the lower surface of the rotation plate 36 and the upper surface of the drive gear 12. The elastic member 33a is constituted by a coil spring, and is disposed so as to be inserted through the drive shaft 11. The elastic member 33a applies an elastic force to the rotating plate 36 so as to push the rotating plate 36 upward.

Next, a switching operation in the integrated valve 1 according to the third embodiment will be explained. The switching operation in the third embodiment also includes a blocking operation, a changing operation, and a connecting operation, similarly to the embodiments described above.

In the shutoff operation of the integrated valve 1 according to the third embodiment, the control unit 60 energizes the solenoid 31 while the output of the driving force by the drive unit 10 is stopped, and an electromagnetic force is generated in the solenoid 31. .

The solenoid plate 35 is attracted by the electromagnetic force generated in the solenoid 31 and moves upward along the drive shaft 11 while opposing the urging force of the urging member 33. At this time, the pin 39 of the rotating plate 36 comes out from the hole 43 of the solenoid plate 35.

As the solenoid plate 35 moves upward, the rotating plate 36 moves upward under the action of the elastic force of the elastic member 33a and comes into contact with the lower surface of the fixed plate 32. As a result, the positioning of the rotating plate 34 by the positioning mechanism section 40 is released, and the rotating plate 36 becomes rotatable.

Note that as the rotating plate 36 moves upward, the idler gear 38 disposed on the rotating plate 36 also moves upward. As a result, the idler gear 38 moves from between one of the valve gears 51 and the drive gear 12, so the transmission path for transmitting the driving force of the drive gear 12 to the valve gear 51 is cut off.

Next, the changing operation of the integrated valve 1 according to the third embodiment will be explained. Due to the above-described shutoff operation, the positioning of the rotating plate 36 with respect to the solenoid plate 35 is released, and the fixed plate 32 is brought into contact with the upper surface of the rotating plate 36. Thereby, the drive shaft 11 can freely rotate at the center of the solenoid plate 35, and as the drive shaft 11 rotates, the rotation plate 36 can rotate around the drive shaft 11.

Since the valve body gears 51 of the plurality of valve body parts 50 in the integrated valve 1 are arranged around the drive shaft 11 at predetermined intervals, the rotary plate 34 is rotated around the drive shaft 11. Thus, a desired valve body portion 50 can be selected. In the changing operation, the drive unit 10 is controlled by the control unit 60, and the amount of rotation of the drive shaft 11 by the drive unit 10 is controlled so that a desired valve body portion 50 is selected.

Next, a connection operation of the integrated valve 1 according to the third embodiment will be explained. In the connection operation, similarly to the embodiment described above, the control unit 60 cuts off the energization to the energized solenoid 31.

As a result, the electromagnetic force of the solenoid 31 disappears, so the solenoid plate 35 moves downward along the drive shaft 11 due to the urging force of the urging member 33. As the solenoid plate 35 moves, the pin 39 of the rotating plate 36 passes through the hole 43 formed in the solenoid plate 35, thereby determining the relative position of the rotating plate 34 with respect to the housing 21.

As the solenoid plate 35 moves downward, the rotating plate 36 is also pushed downward. Since the rotating plate 36 is separated from the fixed plate 32, relative movement between the rotating plate 36 and the drive shaft 11 becomes possible. Therefore, the drive shaft 11 can be rotated while the rotation plate 36 is positioned relative to the housing 21.

Further, when the pin 39 is inserted through the hole 43 and the rotating plate 36 is pushed down by the solenoid plate 35, the idler gear 38 of the rotating plate 36 connects the driving gear 12 and the valve body of the valve body portion 50 selected by the changing operation. Between the gears 51, they mesh with each other. Therefore, when the drive shaft 11 is rotated with the relative position of the rotary plate 34 relative to the housing 21 being determined, the driving force from the drive gear 12 is applied to the valve body selected by the change operation via the idler gear 38. The signal is transmitted to the valve gear 51 of the section 50.

Thereby, the integrated valve 1 according to the third embodiment can adjust the driving force transmitted to the valve body gear 51, so that the valve opening degree of the selected valve body part 50 can be adjusted appropriately. can. That is, the integrated valve 1 can arbitrarily transmit the driving force to each of the first valve body part 50a to the fourth valve body part 50d using the driving force generated by one driving part 10, Appropriate opening adjustment can be achieved for each.

Next, the positioning mechanism section 40 of the integrated valve 1 according to the third embodiment will be described in detail with reference to FIG. 8. As described above, in the integrated valve 1 according to the third embodiment, the positioning mechanism section 40 includes the plurality of holes 43 formed in the solenoid plate 35, the pin 39 arranged in the rotation plate 36, and the respective holes. 43, and a guide portion 44 disposed around the guide portion 43.

As shown in FIG. 8, the pin 39 is formed to protrude upward from the rotation plate 36. Further, the hole 43 is formed so that the pin 39 of the rotating plate 36 can be inserted therethrough, and corresponds to any one of the first valve body part 50a to the fourth valve body part 50d.

The guide portion 44 is arranged around the opening edge of each hole 43 on the surface of the solenoid plate 35 and guides the tip of the pin 39 that moves while contacting the surface of the solenoid plate 35 into the inside of the hole 43. .

Specifically, as shown in FIG. 8, each guide portion 44 has an inclined portion 44a. The inclined portion 44a is inclined so that the closer it is to the hole 43 located at the center of the guide portion 44, the higher the inclined portion 44a is. Therefore, by performing the operation with the tip of the pin 39 in contact with the inclined portion 44a, the pin 39 can be guided inside the hole portion 43, and the positioning mechanism portion 40 can easily position the rotary plate 34. be able to.

In addition, in FIG. 8, although the inclination angle of the inclined part 44a in the guide part 44 is shown as a constant inclination angle, it is not limited to this aspect. The inclination angle of the inclination part 44a is preferably such that the lower surface of the solenoid plate 35 approaches the upper side as it approaches the hole part 43, but it may be configured with a plurality of types of inclination angles, or the inclination angle The curved surface may be formed by changing smoothly.

Also in the integrated valve 1 according to the third embodiment, the control section 60 controls the operation of the drive section 10 and the solenoid 31 during the change operation and the connection operation. The details of the operation control of the drive unit 10 and the solenoid 31 are substantially the same as those in the second embodiment described above, and therefore, a repeated explanation will be omitted.

As a result, the integrated valve 1 according to the third embodiment also requires high accuracy regarding the timing of cutting off the current to the solenoid 31 and the timing of controlling the drive section 10 during the changing operation and the connecting operation. There will be no need. That is, the control burden related to drive control of the drive unit 10 and the solenoid 31 can be reduced.

As explained above, according to the integrated valve 1 according to the third embodiment, even when the rotating plate 34 is configured by the solenoid plate 35 and the rotating plate 36, the same configuration and operation as in the above-described embodiment are performed. Effects can be obtained.

Furthermore, by configuring the rotary plate 34 with the solenoid plate 35 and the rotating plate 36, the weight of the structure to be attracted by the electromagnetic force of the solenoid 31 (that is, the solenoid plate 35) can be reduced. In other words, since the necessary electromagnetic force can be kept low, the performance required of the solenoid 31 can be suppressed, and the solenoid 31 can be made smaller.

Furthermore, as shown in FIG. 8, by arranging a guide portion 44 having an inclined portion 44a around the hole portion 43 in the positioning mechanism portion 40, the pin 39 can be inserted into the hole 43 reliably. That is, the integrated valve 1 can reliably switch the transmission destination of the driving force.

Furthermore, according to the integrated valve 1, each gear forming the power transmission section 45 can be reliably engaged during the changing operation and the connecting operation of the integrated valve 1, and the switching operation can be performed reliably. Moreover, according to the integrated valve 1, the control burden on the drive unit 10 and the solenoid 31 during changing operations and connecting operations can be reduced.

(Fourth embodiment)
Next, a fourth embodiment different from the embodiments described above will be described with reference to FIG. 9. In the integrated valve 1 according to the fourth embodiment, the specific configurations of the drive gear 12, the idler gear 38, and the valve body gear 51 that constitute the power transmission section 45 are different from the embodiments described above. The other configurations of the integrated valve 1 are the same as those in the above-described embodiment, and therefore will not be described again.

In the integrated valve 1 according to the fourth embodiment, the power transmission section 45 includes the drive gear 12, the idler gear 38, and one valve body gear 51. As shown in FIG. 9, the diameters of the gears constituting the power transmission section 45 according to the fourth embodiment are configured such that each valve gear 51 has the largest diameter and the drive gear 12 has the smallest diameter. The diameter of the idler gear 38 is set to be smaller than the diameter of the valve body gear 51 and larger than the drive gear 12.

That is, by increasing the diameter of each gear constituting the power transmission section 45 in the order of the drive gear 12, the idler gear 38, and the valve body gear 51, the idler gear 38 decelerates the driving force from the drive gear 12 and It can be transmitted to the body gear 51.

In the integrated valve 1 according to the fourth embodiment, by transmitting the driving force to the valve gear 51 via the power transmission section 45, it is possible to increase the torque acting on the valve gear 51. . In other words, according to the integrated valve 1, the output torque required of the drive unit 10 can be kept small, so the drive unit 10 can be downsized.

As explained above, according to the integrated valve 1 according to the fourth embodiment, even if the configuration of the power transmission section 45 is changed, the effects obtained from the configuration and operation common to the above-described embodiment can be obtained. Can be done.

(Fifth embodiment)
Next, a fifth embodiment that is different from the embodiments described above will be described with reference to FIGS. 10 and 11. In the integrated valve 1 according to the fifth embodiment, the configuration of the plurality of valve body parts 50 (ie, the first valve body part 50a to the fourth valve body part 50d) is different from the above-described embodiment. The other configurations of the integrated valve 1 are the same as those in the above-described embodiment, and therefore will not be described again.

As shown in FIG. 10, the integrated valve 1 according to the fifth embodiment includes a plurality of valve body parts 50, including a first valve body part 50a to a fourth valve body part 50d. The diameters of the plurality of valve body parts 50 in the fifth embodiment are the diameter of the first valve body part 50a, the diameter of the second valve body part 50b, the diameter of the fourth valve body part 50d, and the diameter of the third valve body part 50c. The caliber is different.

Here, the diameter of the valve body 50 means the diameter of the valve body 54 constituting the valve body 50, the diameter of the opening in the valve seat 57, and the flow path diameters of the inlet passage 55 and the outlet passage 58.

As shown in FIG. 11, the diameter of the first valve body part 50a is determined to be the largest among the plurality of valve body parts 50. On the other hand, the diameter of the third valve body portion 50c is determined to be the smallest among the plurality of valve body portions 50.

Although not shown, the diameter of the second valve body portion 50b is set to be smaller than the diameter of the first valve body portion 50a and larger than the diameter of the third valve body portion 50c. The diameter of the fourth valve body portion 50d is set equal to the diameter of the second valve body portion 50b.

As shown in FIG. 10, in the integrated valve 1 according to the fifth embodiment, the diameters of the valve gears 51 that constitute the plurality of valve body parts 50 are different. The diameter of the valve gear 51 associated with the first valve body portion 50a is determined to be the largest, and the diameter of the valve body gear 51 associated with the third valve body portion 50c is determined to be the smallest. The diameter of the valve gear 51 associated with the second valve body 50b is set to be smaller than the first valve body 50a and larger than the third valve body 50c. The diameter of the valve body gear 51 related to the fourth valve body part 50d is formed to be equal to the diameter of the valve body gear 51 related to the second valve body part 50b.

The number of teeth in the valve body gear 51 related to the first valve body part 50a is determined to be the largest among the plurality of valve body parts 50, and the number of teeth in the valve body gear 51 related to the third valve body part 50c is determined to be the largest among the plurality of valve body parts 50. The number of teeth at 51 is determined to be the minimum. The number of teeth in the valve gear 51 of the second valve body 50b is set to be smaller than that of the first valve body 50a and greater than that of the third valve body 50c. The number of teeth of the valve body gear 51 related to the fourth valve body part 50d is formed to be equal to the number of teeth of the valve body gear 51 related to the second valve body part 50b.

That is, in the integrated valve 1 according to the fifth embodiment, the order of the diameter of the first valve body part 50a to the fourth valve body part 50d is the first valve body part 50a to the fourth valve body part 50d. They correspond in order of the diameter and number of teeth of the valve body gear 51 according to the above.

By employing such a configuration, the valve body gear 51 having a large diameter and a large number of teeth is employed in the valve body portion 50 having a large diameter and requiring a large torque. Thereby, high torque can be generated through the valve body gear 51, so that the necessary torque can be obtained with the valve body portion 50 having a large diameter.

Further, a valve gear 51 having a small diameter and a small number of teeth is employed for the small diameter valve body portion 50 that requires a small torque. This makes it possible to suppress the torque acting on the valve body portion 50 having a small diameter.

In the integrated valve 1 according to the fifth embodiment, a configuration is adopted in which the transmission destination of the driving force output from one drive unit 10 is switched, and one of the plurality of valve body parts 50 is actuated. In other words, the driving force output from the drive unit 10 is transmitted to a plurality of valve body parts 50 whose required torques differ depending on the size of the aperture. In this case, if the required torque is adjusted to the valve body 50 with a large diameter, the torque transmitted to the valve body 50 with a small diameter will be excessive, and the components of the valve body 50 with a small diameter (for example, the valve body 54) will be damaged. It is possible that it may be deformed.

In this regard, in the integrated valve 1 according to the fifth embodiment, the diameters of the plurality of valve body parts 50 are arranged in the order of the diameter and the number of teeth of the valve body gears 51 of the plurality of valve body parts 50. Therefore, torque corresponding to the diameter of the valve body portion 50 can be transmitted. Thereby, the integrated valve 1 can suppress excessive torque from acting on the components of the valve body portion 50, and can prevent deformation of the components due to excessive torque.

As explained above, according to the integrated valve 1 according to the fifth embodiment, even if the diameters of the plurality of valve body parts 50 and the number of teeth of the valve body gear 51 are different from each other, Advantages can be obtained from a common configuration and operation.

As shown in FIGS. 10 and 11, in the integrated valve 1 according to the fifth embodiment, the order of the diameters of the first valve body portion 50a to the fourth valve body portion 50d is the first valve body portion 50a to the fourth valve body portion 50d. - Correspond in order of the diameter and number of teeth of the valve body gear 51 related to the fourth valve body portion 50d.

Thereby, the integrated valve 1 can transmit the driving force output from the drive unit 10 as a torque corresponding to the diameter of the valve body part 50, and can suppress the influence of excessive torque on the component parts. .

In the fifth embodiment, there are three types of diameters of the valve body part 50: a first valve body part 50a, a third valve body part 50c, a second valve body part 50b, and a fourth valve body part 50d. However, it is not limited to this embodiment. For example, a configuration may be adopted in which the types of diameters of the plurality of valve body parts 50 are all different. Furthermore, the type of diameter of the plurality of valve body parts 50 depends on the configuration of the fluid circuit (for example, a refrigeration cycle) in which the integrated valve 1 is arranged, and the type of the plurality of valve body parts 50 that are integrated as the integrated valve 1. It can be determined as appropriate.

(Other embodiments)
The present disclosure is not limited to the embodiments described above, and can be modified in various ways as described below without departing from the spirit of the present disclosure.

(a) In the embodiment described above, the integrated valve 1 is applied to the refrigeration cycle of a vehicle air conditioner, but the invention is not limited to this embodiment. The integrated valve 1 can be applied to any fluid circuit. For example, the integrated valve 1 may be applied to a refrigeration cycle for residential equipment, or may be applied to a heat medium circuit (cooling water circuit) constituting a vehicle air conditioner.

(b) Furthermore, in the embodiment described above, each of the plurality of valve body parts 50 constituting the integrated valve 1 constitutes an expansion valve, but the valve device to which each valve body part 50 corresponds is an expansion valve. It is not limited to valves. As the plurality of valve body parts 50, it is also possible to adopt a structure corresponding to a valve device such as an on-off valve or a flow rate adjustment valve.

(c) In the embodiment described above, all of the plurality of valve body parts 50 in the integrated valve 1 were described as having a configuration corresponding to one type of valve device called an expansion valve, but the configuration is not limited to this aspect. do not have. That is, the plurality of valve bodies 50 in the integrated valve 1 may be configured to correspond to different types of valve devices (for example, an on-off valve, a three-way valve, etc.).

1 Integrated valve 10 Drive section 30 Switching mechanism section 31 Solenoid 32 Fixed plate 33 Biasing member 34 Rotating plate 40 Positioning mechanism section 45 Power transmission section 50 Valve body section 54 Valve body

Claims (8)

a drive unit (10) that generates a driving force;
a plurality of valve bodies (54) arranged in a flow path through which a fluid flows, and adjusting the flow rate of the fluid flowing through the flow path;
The driving force generated by the drive unit is transmitted to one of the valve bodies included in the plurality of valve bodies, and the destination of the drive force of the drive unit can be switched from among the plurality of valve bodies. An integrated valve (1) having a switching mechanism section (30) configured,
The switching mechanism section is
disposed between the drive unit and the plurality of valve bodies,
a solenoid (31) that generates electromagnetic force when energized;
A rotating plate (11) configured to be movable by electromagnetic force generated in the solenoid along the drive shaft (11) to which the driving force of the drive unit is output, and arranged to be rotatable about the drive shaft ( 34) and
a power transmission unit (45) that transmits a driving force to one of the plurality of valve bodies when the rotary plate is placed at a predetermined position;
a fixed plate (32) that is formed integrally with the drive shaft and transmits driving force to the rotary plate when it comes into contact with the rotary plate by electromagnetic force;
a biasing member (33) that applies a biasing force to the rotating plate in a direction away from the solenoid;
a positioning mechanism section (40) that positions the relative position of the rotary plate when the power transmission section becomes capable of transmitting a driving force to one of the plurality of valve bodies; An integrated valve with . The power transmission section (45) includes:
a drive gear (12) provided on the drive shaft that rotates by the drive force generated by the drive unit and outputs the drive force;
a valve gear (51) connected to the valve body and actuating the valve body through rotational movement;
An idler gear (38) is arranged so as to be connectable between the drive gear and the valve body gear, and transmits the driving force output from the drive gear at a reduced speed to the valve body gear. The integrated valve according to claim 1. The plurality of valve bodies (54) include a plurality of types of valve bodies having different diameters,
According to claim 2, the number of teeth of the plurality of valve gears (51) is in an order corresponding to the diameter of the valve body connected to the valve gear in the plurality of valve bodies. Integrated valve as described. The positioning mechanism section (40) includes:
a pin (39) arranged on the rotating plate;
a recessed portion (41) into which the pin is fitted when the power transmission section becomes capable of transmitting a driving force to one of the plurality of valve bodies included in the plurality of valve bodies; and
According to any one of claims 1 to 3, the relative position of the rotary plate is determined such that when the pin is fitted into the recess, a driving force can be transmitted to one of the valve bodies. integrated valve. The positioning mechanism section has a guide section (42) arranged around the recess and inclined according to a distance from the recess,
The integrated valve according to claim 4, wherein the guide portion guides the pin that has come into contact with the guide portion toward the recess. The rotating plate (34) is
a solenoid plate (35) configured to be movable along the drive shaft (11) by electromagnetic force generated in the solenoid;
It has an autorotating plate (36) arranged to be rotatable with the drive shaft around the drive shaft,
The fixed plate (32a) is formed integrally with the drive shaft between the solenoid plate and the rotating plate, and transmits a driving force to the rotating plate when in contact with the rotating plate,
The integrated valve according to claim 1, further comprising an elastic member (33a) that applies a biasing force to the rotating plate in a direction toward the fixed plate. The positioning mechanism section (40) includes:
a hole (43) formed in the solenoid plate;
A pin (39 ) and,
The integrated valve according to claim 6, wherein the relative position of the rotating plate and the solenoid plate is determined when the pin is inserted through the hole. The positioning mechanism section has a guide section (44) arranged around the hole section and inclined according to a distance from the hole section,
The integrated valve according to claim 7, wherein the guide portion guides the pin that has come into contact with the guide portion toward the hole portion.

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