CN114962727B - Valve, heat pump air conditioning system and vehicle - Google Patents

Abstract

The utility model relates to a valve, heat pump air conditioning system and vehicle, this valve includes the valve body, pipe subassembly and shutoff portion, the inside of valve body has the cavity, be formed with the import with the cavity intercommunication on the valve body, pipe subassembly includes first pipe and second pipe, the second pipe is established outside first pipe, and have the clearance between the inner wall of second pipe and the outer wall of first pipe, pipe subassembly still includes first opening and second opening, first opening intercommunication first pipe and cavity, second opening intercommunication clearance and cavity, so that the fluid medium can be discharged in the valve via first pipe and clearance, the shutoff portion includes first shutoff portion and second shutoff portion, first shutoff portion is used for the shutoff or opens first opening, second shutoff portion is used for the shutoff or opens the second opening. The valve can realize the switching of the flow paths of the fluid medium, and the structural arrangement of the valve is compact, occupies small space, is beneficial to reducing the overall size of the valve and is convenient for the arrangement of the valve.

Description

Valve, heat pump air conditioning system and vehicle

Technical Field

The disclosure relates to the technical field of valves, in particular to a valve, a heat pump air conditioning system and a vehicle.

Background

When the heat pump air conditioning system is switched in a mode, branches through which fluid media flow need to be changed, in order to switch the conduction relation between two branches connected in parallel, at least one switch valve is usually required to be installed on each branch, and the increase of the number of the switch valves can increase cost and occupy arrangement space, so that the system is complex in structure.

Disclosure of Invention

The disclosure aims to provide a valve, a heat pump air conditioning system and a vehicle, so as to solve the technical problems in the related art.

To achieve the above object, a first aspect of the present disclosure provides a valve, comprising:

the valve body is internally provided with a cavity, and an inlet communicated with the cavity is formed on the valve body;

the catheter assembly comprises a first catheter and a second catheter, wherein the second catheter is sleeved outside the first catheter, a gap is formed between the inner wall of the second catheter and the outer wall of the first catheter, the catheter assembly further comprises a first opening and a second opening, the first opening is communicated with the first catheter and the cavity, and the second opening is communicated with the gap and the cavity, so that fluid medium can be discharged out of the valve through the first catheter and the gap;

the plugging part comprises a first plugging part and a second plugging part, wherein the first plugging part is used for plugging or opening the first opening, and the second plugging part is used for plugging or opening the second opening.

Optionally, the first conduit is coaxially disposed with the second conduit.

Optionally, the first blocking portion and the second blocking portion are arranged in a linkage manner, and the first blocking portion and the second blocking portion are configured such that, when the first blocking portion is at a position for blocking the first opening, the second blocking portion is at a position for opening the second opening, and when the second blocking portion is at a position for blocking the second opening, the first blocking portion is at a position for opening the inlet of the first conduit.

Optionally, the valve further comprises a driving piece and a connecting rod, wherein the connecting rod comprises a main connecting rod, a first connecting rod and a second connecting rod, the first connecting rod is connected between the main connecting rod and the first blocking portion, the second connecting rod is connected between the main connecting rod and the second blocking portion, and the driving piece is used for driving the main connecting rod to move along a direction close to or far away from the first guide pipe and the second guide pipe.

Optionally, an end plate is disposed in the first conduit, the end plate is formed with the first opening, the first connecting rod is disposed through the first opening, the first blocking portion is disposed in the first conduit and is located at a side, far away from the cavity, of the end plate, and the projection of the first blocking portion on the end plate covers the first opening.

Optionally, an elastic member is further disposed in the first conduit, and the elastic member is configured to provide an elastic force for pressing the first blocking portion against the end plate.

Optionally, the elastic piece is a spring, the spring is sleeved outside the first connecting rod, wherein,

one end of the spring is connected to the first blocking part, and the other end of the spring is connected to the inner wall of the first conduit; or (b)

One end of the spring is connected with the first connecting rod, and the other end of the spring is connected with the end plate.

Optionally, the end of the first conduit close to the cavity protrudes from the end of the second conduit close to the cavity so as to form a protruding section, and the second blocking part is formed into an annular sealing structure, and the annular sealing structure is movably sleeved on the outer wall of the protruding section.

Optionally, the at least two second connecting rods are uniformly arranged around the center circumference of the annular sealing structure.

Optionally, the driving member is an electromagnet, and the main link is made of a magnetic material to be configured as a moving iron core.

Optionally, the valve body includes a partition plate, the partition plate divides the cavity into a first cavity and a second cavity, the first connecting rod and the second connecting rod are both arranged in the first cavity, and the inlet, the first conduit and the second conduit are all communicated with the first cavity;

the electromagnet is arranged in the second cavity, a guide hole is formed in the partition plate, and the main connecting rod movably penetrates through the guide hole.

Optionally, the partition includes a partition body and a flange portion formed on a side of the partition body close to the first cavity, and the guide hole is formed in the partition body and the flange portion.

Optionally, the valve body is formed into a sleeve structure, one end of the sleeve structure is opened to form an open end, the second conduit is inserted into the sleeve structure from the open end of the sleeve structure, and at least one inlet is formed on the side wall of the sleeve structure.

Optionally, the conduit assembly further comprises a third opening and a fourth opening, the first conduit communicating with the third opening to enable fluid medium within the first conduit to drain out of the first conduit via the third opening;

and a sealing plate is arranged on one side of the gap, which is far away from the first opening, and the fourth opening is formed on the pipe wall of the second conduit, so that the fluid medium in the second conduit can be discharged out of the second conduit through the fourth opening.

A second aspect of the present disclosure provides a heat pump air conditioning system comprising the valve described above, the valve being disposed on a refrigerant flow path of the heat pump air conditioning system.

A third aspect of the present disclosure provides a vehicle comprising the heat pump air conditioning system described above.

In the valve described above, the fluid medium can enter the cavity of the valve body through the inlet, and when the first blocking portion opens the first opening, the fluid medium can enter the first conduit through the first opening to be discharged to the valve through the first conduit. When the second blocking portion opens the second opening, the liquid medium can enter a gap between the outer wall of the first conduit and the inner wall of the second conduit through the second opening to be able to be discharged to the valve through the gap. That is, the valve opens or closes the first opening and the second opening through the first blocking portion and the second blocking portion, respectively, so that the fluid medium can be discharged out of the valve through different conduits, and selection and switching of the flow path of the fluid medium are realized. Because the second conduit is sleeved outside the first conduit, the first opening and the second opening can be arranged on the same side of the valve body, the first conduit and the second conduit are closely arranged in structure, the occupied space is small, the reduction of the whole size of the valve body is facilitated, and the arrangement of the valve body is facilitated.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

FIG. 1 is a cross-sectional view of a valve body provided by an exemplary embodiment of the present disclosure, with a first blocking portion in a position to open a first opening and a second blocking portion in a position to block a second opening;

FIG. 2 is a cross-sectional view of a valve body provided by another exemplary embodiment of the present disclosure, wherein a first blocking portion is in a position to open a first opening and a second blocking portion is in a position to block a second opening;

FIG. 3 is a cross-sectional view of a valve body provided by yet another exemplary embodiment of the present disclosure, wherein a first blocking portion is in a position to block a first opening and a second blocking portion is in a position to open a second opening;

fig. 4 is a cross-sectional view of a valve body provided by another exemplary embodiment of the present disclosure, wherein a first blocking portion is in a position to open a first opening and a second blocking portion is in a position to block a second opening.

Description of the reference numerals

1-a valve body; 11-cavity; 111-a first cavity; 112-a second cavity; 12-inlet; 13-a separator; 131-a separator body; 132-flange portion; 14-a guide hole; a 2-catheter assembly; 21-a first conduit; 211-end plates; 212-an elastic member; 213-projecting segments; 22-a second conduit; 23-gap; 24-sealing plate; 31-a first opening; 32-a second opening; 33-a third opening; 34-fourth openings; 4-plugging piece; 41-a first blocking portion; 42-a second occlusion; 5-a driving member; 6-connecting rods; 60-a main connecting rod; 61-a first link; 62-second link.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In this disclosure, unless otherwise indicated, terms of orientation such as "inner and outer" are used to refer to the inner and outer of the contour of the associated component. In addition, it should be noted that terms such as "first", "second", etc. are used to distinguish one element from another element, and do not have order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

As shown in fig. 1 to 4, the present disclosure provides a valve comprising a valve body 1, a duct assembly 2 and a blocking member 4, wherein a cavity 11 is formed in an interior of the valve body 1, an inlet 12 communicating with the cavity 11 is formed in the valve body 1, the duct assembly 2 comprises a first duct 21 and a second duct 22, the second duct 22 is sleeved outside the first duct 21, a gap 23 is formed between an inner wall of the second duct 22 and an outer wall of the first duct 21, the duct assembly 2 further comprises a first opening 31 and a second opening 32, the first opening 31 communicates the first duct 21 with the cavity 11, the second opening 32 communicates the gap 23 with the cavity 11 so that fluid medium can be discharged to the valve via the first duct 21 and the gap 23, the blocking member 4 comprises a first blocking portion 41 and a second blocking portion 42, the first blocking portion 41 is used for blocking or opening the first opening 31, and the second blocking portion 42 is used for or opening the second opening 32.

In the valve described above, the fluid medium can enter the cavity 11 of the valve body 1 through the inlet 12, and when the first blocking portion 41 opens the first opening 31, the fluid medium can enter the first conduit 21 through the first opening 31 to be discharged to the valve through the first conduit 21. When the second blocking portion 42 opens the second opening 32, the liquid medium can enter the gap 23 between the outer wall of the first conduit 21 and the inner wall of the second conduit 22 through the second opening 32 to be able to be discharged to the valve through the gap 23. That is, the valve opens or closes the first opening 31 and the second opening 32 through the first blocking portion 41 and the second blocking portion 42, respectively, so that the fluid medium can be discharged out of the valve through different pipes, and selection and switching of the flow path of the fluid medium are realized. Because the second conduit 22 is sleeved outside the first conduit 21, the first opening 31 and the second opening 32 can be arranged on the same side of the valve body 1, and the first conduit 21 and the second conduit 22 are arranged in a mutually sleeved mode, so that the structural arrangement of the first conduit 21 and the second conduit 22 is compact, the occupied space is small, the reduction of the overall size of the valve body 1 is facilitated, and the arrangement of the valve body 1 is facilitated.

The first and second ducts 21 and 22 may be straight pipes or curved hoses, and the specific materials and shapes of the first and second ducts 21 and 22 are not limited in the present disclosure. As shown in fig. 1, alternatively, the first conduit 21 and the second conduit 22 may be coaxially arranged so that the fluid medium can pass through the gap 23 stably and uniformly to be discharged to the valve.

The first blocking portion 41 is used for blocking or opening the first opening 31, and the second blocking portion 42 is used for blocking or opening the second opening 32, wherein the first blocking portion 41 and the second blocking portion 42 may have mutually independent structures, that is, the positional relationship between the first blocking portion 41 and the first opening 31 is irrelevant to the positional relationship between the second blocking portion 42 and the second opening 32, so as to realize independent opening or closing of the first opening 31 and the second opening 32. In order to realize the switching function of the valve to the flow path of the fluid medium, alternatively, the first blocking portion 41 and the second blocking portion 42 may be arranged in a linkage manner, and the first blocking portion 41 and the second blocking portion 42 may be configured such that, when the first blocking portion 41 is in a position to block the first opening 31, the second blocking portion 42 is in a position to open the second opening 32, and when the second blocking portion 42 is in a position to close the second opening 32, the first blocking portion 41 is in a position to open the first opening 31.

In the above embodiment, the valve may have three modes, in the first mode, as shown in fig. 2, when the first blocking portion 41 is in the position of opening the first opening 31, the second blocking portion 42 is in the position of blocking the second opening 32, that is, the inlet 12 of the valve communicates with the first conduit 21 and is blocked from the second conduit 22, and the fluid medium cannot enter the second conduit 22, so that the second conduit 22 is prevented from splitting the fluid medium, and it is ensured that the fluid medium can flow out of the valve through the first conduit 21 entirely. In the second mode, as shown in fig. 3, when the first blocking portion 41 is in a position to close the first opening 31, the second blocking portion 42 is in a position to open the second opening 32, the inlet 12 of the valve is in communication with the second conduit 22 and is blocked from the first conduit 21, and fluid medium cannot enter the first conduit 21, so that the first conduit 21 is prevented from diverting the fluid medium, and the fluid medium is ensured to flow out of the valve through the second conduit 22 entirely.

In the third mode, the first blocking part 41 may be in a position at least partly opening the first opening 31 and the second blocking part 42 in a position at least partly opening the second opening 32, i.e. the inlet 12 of the valve may be in communication with the first conduit 21 and the second conduit 22, respectively, and fluid medium may flow out of the valve through the first conduit 21 and the gap 23, respectively.

Alternatively, the valve may include a driving member 5 and a link 6, the driving member 5 being configured to drive the first blocking portion 41 and the second blocking portion 42 to move by the link 6 to open or close the first opening 31 and to open or close the second opening 32, respectively.

Wherein, as shown in fig. 1, the link 6 comprises a main link 60, a first link 61 and a second link 62, the first link 61 is connected between the main link 60 and the first blocking portion 41, the second link 62 is connected between the main link 60 and the second blocking portion 42, and the driving member 5 is used for driving the main link 60 to move in a direction approaching or separating from the first conduit 21 and the second conduit 22. In this embodiment, the driving force is transmitted by using the connecting rod 6, the driving member 5 only needs to drive the main connecting rod 60 to move along the direction approaching or separating from the first conduit 21 and the second conduit 22, the main connecting rod 60 can respectively drive the first connecting rod 61 and the second connecting rod 62 to move, so as to drive the first blocking portion 41 and the second blocking portion 42 to change positions, and the transmission mode is simple and reliable, so that the internal structure of the valve is simplified on the premise of driving the first blocking portion 41 and the second blocking portion 42.

In the above embodiment, when the driving member 5 drives the main link 60 to move in the direction approaching the first conduit 21, the main link 60 drives the first link 61, so as to drive the first blocking portion 41 to approach the first opening 31 or separate from the first opening 31, and the effect thereof is related to the relative positional relationship between the first blocking member 4 and the first opening 31. As an exemplary embodiment, as shown in fig. 1, an end plate 211 may be disposed in the first conduit 21, a first opening 31 is formed on the end plate 211, the first connecting rod 61 is disposed through the first opening 31, the first blocking portion 41 is disposed in the first conduit 21 and located at a side of the end plate 211 away from the cavity 11, and a projection of the first blocking portion 41 on the end plate 211 covers the first opening 31.

As shown in fig. 2 and 3, since the first blocking portion 41 is disposed in the first duct 21 at a side of the end plate 211 away from the cavity 11, when the main link 60 approaches the first duct 21 and the second duct 22, the first blocking portion 41 is away from the end plate 211 so that a gap is created between the first blocking portion 41 and the end plate 211, and the fluid medium in the cavity 11 can flow to the inside of the first duct 21 through the first opening 31 in the end plate 211 and the gap between the first blocking portion 41 and the end plate 211, thereby being able to be discharged out of the valve body 1 through the first duct 21. That is, in this embodiment, when the driving member 5 drives the main link 60 to move in the direction approaching the first conduit 21, the main link 60 drives the first link 61 to drive the first blocking portion 41 away from the first opening 31, so as to open the first opening 31.

In order to ensure that the first blocking part 41 can perform a good blocking function on the first opening 31, an elastic member 212 may optionally be provided in the first conduit 21, the elastic member 212 being configured to provide an elastic force for pressing the first blocking part 41 against the end plate 211. As shown in fig. 3, when the driving member 5 drives the main link 60 to be far away from the first conduit 21 and the second conduit 22, the first blocking portion 41 is attached to the side portion of the end plate 211, the first blocking portion 41 can completely block the first opening 31, and the elastic force of the elastic member 212 can press the first blocking portion 41 against the end plate 211, so that the first opening 31 can be opened due to the separation of the first blocking portion 41 and the end plate 211 caused by the water pressure in the cavity 11 can be avoided, and the first blocking portion 41 can stably block the first opening 31.

The elastic member 212 may be an elastic block, a spring plate, a spring structure, or the like, alternatively, the elastic member 212 may be a spring, and the spring is sleeved outside the first link 61, where one end of the spring may be connected to the first blocking portion 41, and the other end of the spring is connected to the inner wall of the first conduit 21, or one end of the spring may be connected to the first link 61, and the other end of the spring is connected to the end plate 211. In the above embodiment, one end of the spring is connected to the first blocking portion 41 or the first link 61, and the spring is deformed during the movement of the first blocking portion 41 or the first link 61, thereby generating an elastic force. And the other end of the spring is connected to the inner wall of the first conduit 21 or the end plate 211, which can be kept fixed without moving, so that the spring is correspondingly deformed when the first blocking portion 41 or the first connecting rod 61 moves, thereby applying an elastic force to the first blocking portion 41.

As a first exemplary embodiment, as shown in fig. 1 to 3, one end of a spring may be connected to the first link 61, and the other end is connected to the end plate 211, and when the first link 61 moves in a direction approaching the end plate 211, the spring is compressively deformed to generate an elastic force, and when the driving force applied to the first link 61 is removed, the first link 61 moves in a direction away from the end plate 211 by the spring, thereby bringing the first blocking portion 41 into contact with the end plate 211. In order to ensure that the spring is still able to provide an elastic force in the state in which the first blocking portion 41 and the end plate 211 are attached, the spring may alternatively be in a compressed state at all times.

As a second exemplary embodiment, as shown in fig. 4, one end of a spring may be connected to the first blocking portion 41, and the other end is connected to the inner wall of the first duct 21, and when the first blocking portion 41 moves in a direction approaching the end plate 211, the spring is subjected to tensile deformation, and when the driving force applied to the first blocking portion 41 is removed, the first blocking portion 41 moves in a direction approaching the end plate 211 by the spring, so as to be attached to the end plate 211. In order to ensure that the spring is still able to provide an elastic force in the state in which the first blocking portion 41 and the end plate 211 are attached, the spring may alternatively be always in a stretched state.

The second conduit 22 is sleeved outside the first conduit 21, optionally, the gap 23 is used for communicating with the open end of the cavity 11, namely, the second opening 32, the second blocking part 42 is used for blocking or opening the second opening 32, the second blocking part 42 can be located in the cavity 11, and when the driving member 5 drives the main connecting rod 60 to approach the first conduit 21 and the second conduit 22, the second blocking part 42 approaches the second opening 32.

In order to ensure that the second blocking portion 42 can be stably close to or far from the second opening 32, as shown in fig. 1, optionally, an end portion of the first conduit 21 close to the cavity 11 may protrude from an end portion of the second conduit 22 close to the cavity 11 to form a protruding section 213, and the second blocking portion 42 may be formed as an annular sealing structure movably sleeved on an outer wall of the protruding section 213. In this embodiment, when the driving member 5 drives the main link 60 to approach the second conduit 22, the second link 62 drives the second blocking portion 42 to approach the second opening 32, and since the second blocking portion 42 may be formed as an annular sealing structure and movably sleeved on the outer wall of the protruding section 213, the outer wall of the protruding section 213 can play a guiding role in moving the annular sealing structure, so as to avoid deflection or skew of the second blocking portion 42. In the state that the second blocking portion 42 is blocked in the second opening 32, the outer wall of the protruding section 213 can keep fit with the second blocking portion 42, so that the fluid medium is prevented from entering the second conduit 22 through the gap 23 between the second blocking portion 42 and the outer wall of the first conduit 21, and a good blocking effect of the second blocking portion 42 is ensured.

In order to ensure that the annular seal structure can be subjected to a uniform pushing force, as shown in fig. 1 to 3, alternatively, at least two second links 62 may be provided, and at least two second links 62 are uniformly arranged circumferentially around the center of the annular seal structure. In the process that the second connecting rods 62 push the annular sealing structure to move, since at least two second connecting rods 62 are uniformly arranged around the central circumference of the annular sealing structure, the annular sealing structure can be uniformly pushed, and therefore deflection or offset is avoided. When the annular sealing structure is plugged in the second opening 32, at least two second connecting rods 62 can also provide uniform pressing force for the annular sealing structure, so that the annular sealing structure can be ensured to be stably pressed on the second opening 32, and the annular sealing structure is prevented from being separated from or generating gaps in the impact of water pressure or water flow and the second opening 32, thereby ensuring the plugging effect.

In the embodiment in which the first conduit 21 comprises an end plate 211, the first blocking portion 41 is disposed in the first conduit 21 and is located at a side of the end plate 211 away from the cavity 11, when the driving member 5 drives the main link 60 to approach the first conduit 21 and the second conduit 22, as shown in fig. 2, a gap 23 is provided between the first blocking portion 41 and the end plate 211, so that the first opening 31 in the end plate 211 is in an open state, and the fluid medium can be discharged to the valve body 1 through the first conduit 21; and the second blocking portion 42 blocks the second opening 32 and blocks the flow of the fluid medium to the second conduit 22. While when the main link 60 is away from the first and second conduits 21, 22, the first blocking portion 41 and the end plate 211 are fitted to block the first opening 31, and the second blocking portion 42 is away from the second opening 32, as shown in fig. 3, the fluid medium can enter the gap 23 through the second opening 32.

Therefore, in the above embodiment, the driving member 5 only needs to drive the main connecting rod 60 to move along the same straight line direction, so that the linkage driving of the first blocking portion 41 and the second blocking portion 42 can be realized, the performance requirements of the connecting rod 6 and the driving member 5 are simple and reliable, the driving complexity is reduced, and the structure of the valve is simplified.

The driving member 5 and the main link 60 described above may have various structures, and as an exemplary embodiment, the driving member 5 and the main link 60 may have a screw-nut structure. As another exemplary embodiment, the driving member 5 may be a linear motor, a hydraulic cylinder, or a pneumatic cylinder, and the main link 60 is an output shaft of the driving member 5 or an output shaft connected to the driving member 5.

As yet another exemplary embodiment, the driving member 5 may be an electromagnet, and the main link 60 is made of a magnetic material to be configured as a plunger, and the electromagnet is capable of driving the plunger to move in an energized state.

In the embodiment in which the driving member 5 is an electromagnet, in order to facilitate the arrangement of the electromagnet, as shown in fig. 1, optionally, the valve body 1 includes a partition 13, the partition 13 divides the cavity 11 into a first cavity 111 and a second cavity 112, the first link 61 and the second link 62 are both disposed in the first cavity 111, the inlet 12, the first conduit 21 and the second conduit 22 are all communicated with the first cavity 111, the electromagnet is disposed in the second cavity 112, a guide hole 14 is formed on the partition 13, and the main link 60 is movably disposed through the guide hole 14. In the above embodiment, the electromagnet is located in the second cavity 112 without being disturbed by the structure in the first cavity 111, and its structure and function are more stable. The main connecting rod 60 is inserted into the guide hole 14, and the guide hole 14 can guide the moving direction of the main connecting rod 60, so that the main connecting rod 60 can move along the straight line direction.

In order to ensure that the guide hole 14 plays a good guiding role for the main link 60, as shown in fig. 1, optionally, the partition 13 may further include a partition body 131 and a flange portion 132 formed on a side of the partition body 131 adjacent to the first cavity 111, the guide hole 14 is formed in the partition body 131 and the flange portion 132, and since the partition 13 and the flange portion 132 have a large length in an axial direction of the guide hole 14, the guide hole 14 can have a large length, and a hole wall of the guide hole 14 can play a good limiting role for the main link, thereby effectively preventing the main link 60 from being deviated.

To facilitate the production and processing of the valve, the valve body 1 may alternatively be formed as a sleeve structure, one end of which is open to form an open end, and the second conduit 22 is inserted into the sleeve structure from the open end of the sleeve structure, and at least one inlet 12 is formed in a side wall of the sleeve structure. In this embodiment, the valve body 1 is formed as a sleeve structure, and structures such as the driving member 5, the connecting rod 6, and the blocking member 4 in the cavity 11 can be placed into the cavity 11 through the open end of the sleeve structure, and after the internal structure is mounted, the second conduit 22 is inserted into the sleeve structure from the open end of the sleeve structure. Thus, the valve in this embodiment is simple to install.

In order to ensure good tightness of the valve, a sealing layer may optionally be provided between the outer wall of the second conduit 22 and the inner wall of the sleeve structure, or the outer wall of the second conduit 22 and the inner wall of the sleeve structure may be connected by a sealant.

In order to facilitate connection between the first conduit 21 and the second conduit 22 and the external pipeline, as shown in fig. 2 and 3, the conduit assembly 2 may optionally further include a third opening 33 and a fourth opening 34, where the first conduit 21 is connected to the third opening 33, so that the fluid medium in the first conduit 21 can be discharged from the first conduit 21 through the third opening 33, a sealing plate 24 is disposed on a side of the gap 23 away from the first opening 31, and a fourth opening 34 is formed on a wall of the second conduit 22, so that the fluid medium in the second conduit 22 can be discharged from the second conduit 22 through the fourth opening 34. Because the third opening 33 and the fourth opening 34 are staggered in space, the third opening 33 and the fourth opening 34 can be connected with other pipelines conveniently, and structural interference is avoided.

A second aspect of the present disclosure provides a heat pump air conditioning system comprising the valve described above, the valve being disposed on a refrigerant flow path of the heat pump air conditioning system. The refrigerant may be a refrigerant or a coolant, and the present disclosure is not particularly limited thereto.

As an exemplary application scenario, the heat pump air conditioning system may have a cooling mode and a heating mode, the inlet 12 of the valve may be connected to the main circuit, the first conduit 21 of the valve may be connected to the first branch circuit, and the second conduit 22 of the valve may be connected to the second branch circuit. When the heat pump air conditioning system is in the cooling mode, the first blocking portion 41 of the valve opens the first opening 31, and the second blocking portion 42 blocks the second opening 32, so that the refrigerant can flow into the first branch through the first conduit 21, thereby enabling the heat pump air conditioning system to realize the cooling mode. When the heat pump air conditioning system is in the heating mode, the first blocking portion 41 of the valve blocks the first opening 31, and the second blocking portion 42 opens the second opening 32 to enable refrigerant to flow into the second branch through the gap 23 between the outer wall of the first duct 21 and the inner wall of the second duct 22, thereby enabling the heat pump air conditioning system to achieve the heating mode.

A third aspect of the present disclosure provides a vehicle comprising the heat pump air conditioning system described above.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims (14)

1. A valve, comprising:

the valve body is internally provided with a cavity, and an inlet communicated with the cavity is formed on the valve body;

the catheter assembly comprises a first catheter and a second catheter, wherein the second catheter is sleeved outside the first catheter, a gap is formed between the inner wall of the second catheter and the outer wall of the first catheter, the catheter assembly further comprises a first opening and a second opening, the first opening is communicated with the first catheter and the cavity, and the second opening is communicated with the gap and the cavity, so that fluid medium can be discharged out of the valve through the first catheter and the gap;

the sealing piece comprises a first sealing part and a second sealing part, wherein the first sealing part is used for sealing or opening the first opening, and the second sealing part is used for sealing or opening the second opening;

the valve further comprises a driving piece and a connecting rod, wherein the connecting rod comprises a main connecting rod, a first connecting rod and a second connecting rod, the first connecting rod is connected between the main connecting rod and the first blocking part, the second connecting rod is connected between the main connecting rod and the second blocking part, and the driving piece is used for driving the main connecting rod to move along the direction approaching to or separating from the first guide pipe and the second guide pipe;

an end plate is arranged in the first guide pipe, the end plate is provided with a first opening, the first connecting rod penetrates through the first opening, the first plugging part is arranged in the first guide pipe and located on one side, far away from the cavity, of the end plate, and the projection of the first plugging part on the end plate covers the first opening.

2. The valve of claim 1, wherein the first conduit is disposed coaxially with the second conduit.

3. The valve of claim 1, wherein the first and second blocking portions are arranged in a ganged manner, the first and second blocking portions being configured such that when the first blocking portion is in a position to block the first opening, the second blocking portion is in a position to open the second opening, and when the second blocking portion is in a position to block the second opening, the first blocking portion is in a position to open the inlet of the first conduit.

4. The valve of claim 1, wherein an elastic member is further disposed within the first conduit, the elastic member configured to provide an elastic force that compresses the first blocking portion against the end plate.

5. The valve of claim 4, wherein the resilient member is a spring that is sleeved outside the first link, wherein,

one end of the spring is connected to the first blocking part, and the other end of the spring is connected to the inner wall of the first conduit; or (b)

One end of the spring is connected with the first connecting rod, and the other end of the spring is connected with the end plate.

6. The valve of claim 1, wherein an end of the first conduit proximate the cavity protrudes from an end of the second conduit proximate the cavity to form a protruding section, the second blocking portion being formed as an annular seal that is movably sleeved on an outer wall of the protruding section.

7. The valve of claim 6, wherein there are at least two of said second links, said at least two second links being uniformly circumferentially arrayed about a center of said annular seal structure.

8. The valve of claim 1, wherein the driving member is an electromagnet and the main link is made of a magnetic material to be configured as a plunger.

9. The valve of claim 8, wherein the valve body comprises a partition separating the cavity into a first cavity and a second cavity, the first and second links each disposed within the first cavity, the inlet, the first conduit, and the second conduit each communicating with the first cavity;

the electromagnet is arranged in the second cavity, a guide hole is formed in the partition plate, and the main connecting rod movably penetrates through the guide hole.

10. The valve according to claim 9, wherein the diaphragm includes a diaphragm body and a flange portion formed on a side of the diaphragm body adjacent to the first cavity, the guide hole being formed in the diaphragm body and the flange portion.

11. A valve according to any one of claims 1 to 3, wherein the valve body is formed as a sleeve structure, one end of the sleeve structure being open to form an open end, the second conduit being plugged to the sleeve structure from the open end of the sleeve structure, at least one of the inlets being formed in a side wall of the sleeve structure.

12. The valve of claim 1, wherein the conduit assembly further comprises a third opening and a fourth opening, the first conduit communicating with the third opening to enable fluid medium within the first conduit to drain out of the first conduit via the third opening;

and a sealing plate is arranged on one side of the gap, which is far away from the first opening, and the fourth opening is formed on the pipe wall of the second conduit, so that the fluid medium in the second conduit can be discharged out of the second conduit through the fourth opening.

13. A heat pump air conditioning system comprising a valve according to any of claims 1-12, said valve being arranged in a refrigerant flow path of said heat pump air conditioning system.

14. A vehicle comprising the heat pump air conditioning system according to claim 13.