CN111963723A

CN111963723A - Valve body assembly and air conditioning equipment

Info

Publication number: CN111963723A
Application number: CN202010662158.0A
Authority: CN
Inventors: 杨剑; 俞舟; 熊匀均
Original assignee: Dunan Environment Technology Co Ltd
Current assignee: Dunan Environment Technology Co Ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2020-11-20
Anticipated expiration: 2040-07-10
Also published as: CN111963723B

Abstract

The invention provides a valve body assembly and air conditioning equipment. The valve body assembly provided by the invention fixedly connects the check valve and the four-way valve through the supporting element and is arranged in a refrigerant circulating system of air conditioning equipment. The one-way valve, the four-way valve and the supporting element jointly form a frame type valve body assembly, the whole stability is better, the resonance frequency of the one-way valve and the four-way valve is further improved, and the risk that the joint between the one-way valve and the four-way valve is broken under the external vibration or impact action of the air conditioning equipment is reduced; in addition, the pipeline connection arrangement between the one-way valve and the four-way valve is optimized, the space volume occupied by the refrigerant circulating system in the air conditioning equipment is reduced, and the time and material cost for connecting the one-way valve and the four-way valve and installing the pipeline are saved.

Description

Valve body assembly and air conditioning equipment

Technical Field

The invention relates to the technical field of heat exchange equipment, in particular to a valve body assembly and air conditioning equipment.

Background

A one-way valve is adopted in a refrigerant circulating system in the existing air conditioning equipment and is connected with a four-way valve through an intermediate pipeline, so that the phenomenon that the refrigerant reversely flows backwards due to pressure change or pipeline oscillation in the refrigerant circulating system when the air conditioning equipment runs is prevented. However, the stability of the connection between the check valve and the four-way valve through the middle pipeline is poor, the resonance frequency of the check valve and the four-way valve is reduced, and when the air conditioning unit is subjected to external vibration or impact, the check valve and the four-way valve are easy to resonate, so that the middle pipeline is broken to cause refrigerant leakage.

Disclosure of Invention

In view of the above, there is a need for an improved valve body assembly and an air conditioning apparatus.

The invention provides a valve body assembly which comprises a one-way valve, a four-way valve and a supporting element, wherein the one-way valve is communicated with the four-way valve, and the supporting element is fixedly connected with the one-way valve and the four-way valve respectively.

In one embodiment of the invention, one end of the support member is recessed inwardly and forms a first circular groove, which is fitted to the outer peripheral wall of the check valve; one end of the supporting element, which is relatively far away from the first circular groove, is inwards sunken to form a second circular groove, and the second circular groove is attached to the outer peripheral wall of the main valve body of the four-way valve.

So set up, through the cooperation and the laminating contact of support element to check valve periphery wall and main valve body periphery wall, prevent to take place relative dislocation or skew between check valve and the cross valve, and prevent that the relative check valve of support element or cross valve pine of support element from taking off and rocking, made to form stable frame construction between support element and check valve and the cross valve, the fixed more firm between support element and check valve or the cross valve main valve body, when the valve body subassembly sets up in air conditioning equipment's refrigerant circulation system, refrigerant circulation system is more firm reliable.

In one embodiment of the present invention, the support member includes a support plate and a first bent side connected to an end of the support plate, the first bent side abutting against an outer circumferential wall of the check valve; and/or the support element comprises a second bending edge which is connected to the end part of the support plate and abuts against the peripheral wall of the main valve body of the four-way valve.

With such an arrangement, the first bending edge or the second bending edge can increase the contact area between the support element and the outer peripheral wall of the check valve or the outer peripheral wall of the main valve body of the four-way valve, so that the support element can more firmly fix the check valve and the four-way valve, and simultaneously further limit the shaking or deflection of the support element relative to the check valve or the four-way valve.

In one embodiment of the present invention, one end of the support member is welded and fixed to the outer peripheral wall of the check valve, and the other end is welded and fixed to the outer peripheral wall of the main valve body of the four-way valve.

So set up, support element passes through welding mode and check valve and cross valve fixed connection, and the steadiness is higher, and valve body subassembly can bear bigger impact, and has reduced and has rocked or the risk of removing between support element and check valve or the cross valve, and the protection effect to pipeline junction between check valve and the cross valve is better.

In one embodiment of the present invention, the first bending edge includes a first bending portion and a second bending portion, and a bending opening is disposed between the first bending portion and the second bending portion; and/or the second bending edge comprises a third bending part and a fourth bending part, and a bending opening is arranged between the third bending part and the fourth bending part.

By the arrangement, the bending opening can reduce the force required by bending the supporting element and forming the first bending edge or the second bending edge, so that the first bending edge or the second bending edge can be formed by bending more labor-saving and quicker, and the support plate material is prevented from being distorted and deformed due to overlarge force application during bending.

In one embodiment of the present invention, the first bending part and the second bending part are respectively located at the same side or two sides of the supporting plate; and/or the third bending part and the fourth bending part are respectively positioned at the same side or two sides of the supporting plate.

The first bending part and the second bending part are respectively positioned at the same side of the supporting plate; and/or when the third bending part and the fourth bending part are respectively at the same side of the user support plate, the folding directions of the first bending part and the second bending part and the third bending part and the fourth bending part are the same, so that the bending forming process of the first bending edge and the second bending edge is more rapid and convenient; when the first bending part and the second bending part are respectively positioned at two sides of the supporting plate, and/or the third bending part and the fourth bending part are respectively positioned at two sides of the supporting plate, the fixing property of the supporting element between the main valve bodies of the relative one-way valve or four-way valve is better, the supporting element is not easy to deflect or incline with the one-way valve or the main valve bodies, the quick welding and fixing are facilitated, and the hot melting deformation degree in the welding process is further reduced.

In one embodiment of the invention, one side of the first bending edge, which is relatively close to the one-way valve, is provided with an electric welding convex bubble; and/or one side of the second bending edge, which is relatively close to the four-way valve, is provided with an electric welding convex bubble.

So set up, when support element and check valve and cross valve pass through the mode of resistance welding and weld fixedly, the electric welding convex bubble can gather more electric currents to make concentrated electric current follow first limit of buckling or the second limit of buckling flow to the outer perisporium of check valve body or main valve body periphery wall, thereby make the electric welding convex bubble gather a large amount of resistance heat in the short time, so that the material is hot melt fast and combine fixedly.

In one embodiment of the present invention, the number of the support members is plural, and the plural support members are provided at intervals in the axial direction of the check valve.

So set up, a plurality of support elements can further improve the fastness of fixed connection between check valve and the cross valve, can prevent to lead to fixed inefficacy because of single support element is damaged or the pine takes off, guarantees the assembly reliability of valve body subassembly in refrigerant circulation system.

In one embodiment of the invention, the valve body assembly further comprises a switching tube, and the one-way valve is connected and communicated with the four-way valve through the switching tube; and/or the one-way valve is arranged in parallel with the main valve body of the four-way valve.

So set up, can further optimize the structure of valve body group spare, reduce the space volume that valve body group spare occupied, make it more be convenient for assemble in refrigerant circulation system, make the pipe arrangement in the air conditioning equipment regular orderly more, can directly use conventional pipeline to be connected compressor and check valve, and be connected outdoor heat exchanger and indoor heat exchanger and cross valve, saved this step of intermediate junction pipeline of installation operation personnel erects between check valve and cross valve and required material resources and time cost.

The invention also provides air conditioning equipment comprising the valve body assembly.

The valve body assembly and the air conditioning equipment provided by the invention have the advantages that the one-way valve and the four-way valve are fixedly connected through the supporting element and are arranged in a refrigerant circulating system of the air conditioning equipment. The one-way valve, the four-way valve and the supporting element jointly form a frame type valve body assembly, the whole stability is better, the resonance frequency of the one-way valve and the four-way valve is further improved, and the risk that the joint between the one-way valve and the four-way valve is broken under the external vibration or impact action of the air conditioning equipment is reduced; in addition, the valve body assembly optimizes the pipeline connection arrangement between the one-way valve and the four-way valve, reduces the space volume occupied by the refrigerant circulating system in the air conditioning equipment, saves the pipeline for connecting the one-way valve and the four-way valve and the time and material cost required for installing the pipeline, and is more convenient and rapid to complete the installation of the refrigerant circulating system.

Drawings

FIG. 1 is a schematic structural view of a valve body assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of the valve body assembly of FIG. 1;

FIG. 3 is a schematic view of the valve body assembly of FIG. 1 from a first perspective;

FIG. 4 is a schematic view of the valve body assembly of FIG. 3 taken along plane D-D;

FIG. 5 is a schematic structural view of a support member according to a first embodiment of the present invention;

FIG. 6 is a schematic structural view of a support member according to a second embodiment of the present invention;

FIG. 7 is a schematic structural view of a supporting member according to a third embodiment of the present invention;

FIG. 8 is a schematic view of the support member shown in FIG. 7 from a first perspective;

FIG. 9 is a schematic structural view of an outlet nipple of the check valve according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a first connection pipe of a four-way valve according to an embodiment of the present invention.

100. A valve body assembly; 10. a one-way valve; 11. an outlet connecting pipe of the one-way valve; 20. a four-way valve; 21. a main valve body; 211. a first piston; 212. a second piston; 213. a first pressure chamber; 214. a second pressure chamber; 215. a carriage; 216. a reversing slide block; 217. a communication channel; 22. a first adapter tube; 23. a second adapter tube; 24. a third connection pipe; 25. a fourth connection pipe; 26. a pilot valve seat; 27. a pilot valve; 30. a transfer tube; 31. a first transition portion; 32. a second transfer part; 40. a support element; 41. a first circular groove; 42. a second circular groove; 43. a support plate; 44. a second bending edge; 441. a third bent portion; 442. a fourth bent portion; 445. bending and opening; 446. electrically welding a convex bubble; 51. a first limit bump; 52. a second limit bump; 53. a conical limiting surface; 54. a first plug hole; 55. a second plug hole; 61. a first capillary tube; 62. a second capillary tube; 63. a third capillary tube; 64. a fourth capillary.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a valve body assembly 100 according to an embodiment of the present invention; FIG. 2 is an exploded view of the valve body assembly 100 of FIG. 1; FIG. 3 is a schematic view of the valve body assembly 100 of FIG. 1 from a first perspective; FIG. 4 is a schematic view of the valve body assembly 100 of FIG. 3 taken along plane D-D.

The air conditioning equipment comprises a refrigerant circulating system for flowing of a refrigerant, wherein the refrigerant circulating system is a closed refrigerant loop and mainly comprises a compressor, a reversing assembly, an outdoor heat exchanger, a throttling assembly and an indoor heat exchanger; the reversing component usually adopts a four-way valve, the throttling component usually adopts a throttling valve, and the refrigerant exchanges heat with air in an outdoor heat exchanger or an indoor heat exchanger so as to realize refrigeration or heating. In addition, in order to ensure the service life of the refrigerant circulating system and prevent the refrigerant from impacting the refrigerant circulating system due to the change of the flowing direction of the refrigerant, a check valve is additionally arranged in the refrigerant circulating system, so that the phenomenon of refrigerant backflow in the heating or refrigerating working condition is eliminated. Of course, the refrigerant circulation system may further include auxiliary devices or components having other functions besides the above devices or components, such as a gas-liquid separator, a filtering device, and the like, to ensure the cleanness of the refrigerant.

In view of this, the present invention provides a valve body assembly 100, which includes a check valve 10, a four-way valve 20, and a supporting member 40, wherein one end of the check valve 10 is connected to and communicated with the four-way valve 20 through a pipeline, and the supporting member 40 is fixedly connected to the check valve 10 and the four-way valve 20, respectively.

The valve body assembly 100 is used for forming a refrigerant circulating system in the air conditioning equipment, and one end of the check valve 10, which is relatively far away from the four-way valve 20, is connected and communicated with the compressor through a pipeline and is used for unidirectionally guiding high-pressure refrigerant from the compressor to the four-way valve 20 and stopping the refrigerant from reversely flowing; the four-way valve 20 is connected with the indoor heat exchanger and the outdoor heat exchanger through pipelines and is used for switching the flowing direction of the refrigerant in the refrigerant circulating system, so that the switching between the refrigerating working condition and the heating working condition is realized; the check valve 10 is connected with the four-way valve 20 through a pipeline to supply refrigerant to flow.

In one embodiment of the present invention, the check valve 10 is connected to the four-way valve 20 through an adapter tube 30, and the adapter tube 30 is an aluminum tube; one of the check valve 10 and the four-way valve 20 is welded and fixed with the adapter tube 30; or, the check valve 10 and the four-way valve 20 are welded and fixed with the adapter tube 30. Hereinafter, an embodiment in which both the check valve 10 and the four-way valve 20 are welded to the adapter tube 30 will be described.

In the existing air conditioning equipment, a pipeline with a longer end is erected between the one-way valve and the four-way valve to be communicated for the flow of a refrigerant, the pipeline can increase the total volume of a refrigerant circulating system, so that the size of the air conditioning equipment, particularly an outdoor unit part, is increased, and because the distance between the one-way valve and the four-way valve is longer, when any one of the two is subjected to vibration impact, the vibration is easily transmitted to the pipeline, the vibration amplitude of the pipeline is increased, and the reliability of the pipeline connection between the one-way valve and the four-way valve cannot be ensured; the valve body assembly 100 provided in the present embodiment realizes the connection and communication between the check valve 10 and the four-way valve 20 through the adapter tube 30, and can significantly reduce the total volume of the refrigerant circulation system, thereby facilitating further reduction of the total volume of the air conditioning equipment, particularly the outdoor unit; the valve body assembly 100 has a more compact structure, and when the one-way valve 10 or the four-way valve 20 is subjected to vibration or impact, the vibration amplitude of the adapter tube 30 can be reduced, so that poor connection or even breakage between the adapter tube 30 and the one-way valve 10 or the four-way valve 20 is reduced; on the basis, the resonant frequency of the support element 40 and the four-way valve 20 can be further improved, and the shock resistance between the one-way valve 10 and the four-way valve 30 and between the two can be obviously improved.

Specifically, the adapter tube 30 is a bent tube, and two opposite ends of the adapter tube 30 include a first adapter portion 31 and a second adapter portion 32, in order to reduce the flow resistance of the refrigerant in the adapter tube 30 and reduce the impact force of the refrigerant on the adapter tube 30, the first adapter portion 31 and the second adapter portion 32 are in smooth transition and are vertically arranged, the two are respectively used for being butted with the check valve 10 and the first adapter 22 of the four-way valve 20, and the first adapter 22 is a D adapter of the four-way valve 20; the butt joint between the first adapter 31 or the second adapter 32 and the check valve 10 or the first adapter 22 may be that the check valve 10 extends into the first adapter 31, or the first adapter 22 extends into the second adapter 32, or the first adapter 31 extends into the check valve 10, or the second adapter 32 extends into the first adapter 22.

In a preferred embodiment of the invention, the non-return valve 10 projects into the first adapter 31 and the first adapter 22 projects into the second adapter 32. Specifically, one end of the check valve 10 is provided with a check valve outlet connection pipe 11 for the refrigerant to flow out and enter the four-way valve 20, the end of the check valve outlet connection pipe 11 extends into the first junction 31 of the junction pipe 30, and the first junction 31 and the check valve outlet connection pipe 11 are welded by means of high-frequency welding or flame welding and the like through aluminum solder.

The high-frequency welding or flame welding has a very high heating speed, and the adapter tube 30 is an aluminum bent tube with a low melting point, so that the aluminum material can absorb heat and melt quickly in a very short time, and the first adapter portion 31 and the one-way valve outlet connection tube 11 are thermally fused by using aluminum solder, so that the time required for welding can be shortened remarkably, and a large amount of heat is prevented from being accumulated and conducted to the one-way valve 10 or the four-way valve 20 due to overlong welding time, so as to avoid burning out or thermally fusing and deforming plastic material elements in the one-way valve 10 or the four-way valve 20, such as a sealing element, a reversing slider 216 in the four-way valve 20, and the welded one-way valve 10 and the four-way valve 20 can still.

The first connection pipe 22 of the four-way valve 20, i.e., the D connection pipe of the four-way valve 20, serves to allow the refrigerant from the check valve 10 to flow into the four-way valve 20. The first adapter tube 22 extends into the second adapter portion 32 of the adapter tube 30 and is welded to the second adapter portion 32 by means of a solder for aluminum, such as high-frequency welding or flame welding.

In a preferred embodiment of the present invention, the first junction 31 and the second junction 32 of the junction tube 30 are vertically disposed, while the first junction 22 of the four-way valve 20 and the main valve body 21 are vertically disposed. When the one-way valve outlet connecting pipe 11 is welded and fixed with the first adapter 31, and the first connecting pipe 22 is welded and fixed with the second adapter 32, the one-way valve 10 is arranged in parallel with the main valve body 21 of the four-way valve 20. So can further reduce the space volume that valve body assembly 100 occupied, further optimize valve body assembly 100's structure, make it more be convenient for set up in refrigerant circulation system to utilize components such as conventional pipeline or elbow to realize and compressor, outdoor heat exchanger or indoor heat exchanger between be connected, therefore the pipeline arrangement in the air conditioning equipment is simple more, regular orderly.

It will be appreciated that in other embodiments, the first transition portion 31 may also extend into the one-way valve outlet connection pipe 11, and the two are welded and fixed together; the second adapter 32 may also extend into the first adapter 22 and be welded and fixed therebetween, and is not limited to the above-mentioned embodiment.

Further, the check valve 10 and the adapter tube 30 are provided with a first limiting part; and/or the four-way valve 20 and the adapter tube 30 are provided with second limiting parts, and the first limiting part and the second limiting part are respectively used for limiting the butt joint depth between the one-way valve 10 and the adapter tube 30 or the butt joint depth between the four-way valve 20 and the adapter tube 30.

Referring to fig. 9 to 10, fig. 9 is a schematic structural view of an outlet connection pipe 11 of a check valve according to an embodiment of the present invention; fig. 10 is a schematic structural view of a first connection pipe 22 of a four-way valve 20 according to an embodiment of the present invention.

Specifically, in one embodiment, the first limiting portion includes a first limiting protrusion 51, the first limiting protrusion 51 is located on a side wall of the check valve outlet adapter 11, the check valve outlet adapter 11 can extend into the first transition portion 31 until the first limiting protrusion 51 abuts against an end surface of the first transition portion 31, and the check valve outlet adapter 11 is stopped from further extending into the first transition portion 31; the second limiting portion comprises a second limiting convex block 52, the second limiting convex block 52 is located on the outer peripheral wall of the first connecting pipe 22 of the four-way valve 20, the first connecting pipe 22 can extend into the first switching portion 31 until the second limiting convex block 52 abuts against the end face of the second switching portion 32, and the first connecting pipe 22 is stopped from further extending into the second switching portion 32.

Of course, the first limiting protrusion 51 and/or the second limiting protrusion 52 may also be disposed on the inner wall surface of the adapter tube 30, and is not limited to the above embodiment; furthermore, the first limiting portion or the second limiting portion may also be other structures besides the limiting protrusion, such as a limiting step, and is respectively disposed on the inner wall of the first adapter portion 31 or the inner wall of the second adapter portion 32, and respectively stops the insertion depth of the one-way valve outlet connection pipe 11 or the first connection pipe 22, as long as the first limiting portion and the second limiting portion can respectively limit the depth of the one-way valve outlet connection pipe 11 and the first connection pipe 22 extending into the adapter pipe 30.

Further, the first limiting part further comprises a conical limiting surface 53, the conical limiting surface 53 is arranged on the periphery of the one-way valve outlet connecting pipe 11, the conical limiting surface 53 is provided with an outer diameter larger than the inner diameter of the first transfer part 31, and the one-way valve outlet connecting pipe 11 can partially extend into the first transfer part 31 until the conical limiting surface 53 abuts against the end surface of the first transfer part 31; as an expanded application of the present embodiment, the second stopper portion may include a tapered stopper surface, and for example, a tapered stopper surface that can abut against the second adapter portion 32 may be provided on the outer periphery of the first adapter tube 22.

Referring to fig. 1 to 2 again, and fig. 5 to 8, fig. 5 is a schematic structural diagram of a supporting element 40 according to a first embodiment of the present invention; FIG. 6 is a schematic structural view of a support member 40 according to a second embodiment of the present invention; fig. 7 is a schematic structural view of a supporting member 40 according to a third embodiment of the present invention; fig. 8 is a first perspective view of the support member 40 shown in fig. 7.

In a preferred embodiment of the present invention, the support member 40 has one end welded to the outer peripheral wall of the check valve 10 and the other end welded to the outer peripheral wall of the main valve body 21 of the four-way valve 20. That is, the check valve 10 and the four-way valve 20 are further fixedly connected through the supporting member 40 in addition to the pipe connection for the refrigerant flowing, so that the check valve 10, the supporting member 40 and the four-way valve 20 form a frame structure, the frame structure can improve the resonance frequency of the check valve 10 and the four-way valve 20, and when the air conditioning equipment is vibrated or impacted by the outside, the risk of damage to the pipe connection between the check valve 10 and the four-way valve 20 can be reduced.

Of course, in other embodiments, the supporting element 40 may be fixed to the check valve 10 and the four-way valve 20 by fastening, etc. any valve body assembly adopting other connection methods may be used as long as the valve body assembly can fix the check valve 10 and the four-way valve 20 and can increase the resonant frequency of the check valve 10 and the four-way valve 20, and the technical solutions are equivalent solutions made within the innovative spirit of the present invention and fall within the protection scope of the present invention.

It is understood that the number of the supporting members 40 may be plural or one. When the support member 40 is plural, the plural support members 40 are arranged at intervals in the axial direction of the check valve 10. The plurality of supporting elements 40 can further improve the firmness of the fixed connection between the check valve 10 and the four-way valve 20, prevent the fixing failure caused by the damage or the loosening of a single supporting element 40, and ensure the assembly reliability of the valve body assembly 100 in the refrigerant circulating system.

Further, the support member 40 includes a support plate 43, one end of the support plate 43 is recessed inward and forms a first circular groove 41, and the shape of the first circular groove 41 is adapted to the shape of a cross section cut along the valve body of the check valve 10 in the radial direction and is attached to the outer peripheral wall of the valve body of the check valve 10; the support member 40 is recessed inwardly from an end thereof opposite to the first circular groove 41 and forms a second circular groove 42, and the second circular groove 42 has a shape corresponding to a shape of a section taken along the radial direction of the main valve body 21 of the four-way valve 20 and is fitted to the outer peripheral wall of the main valve body 21.

With the arrangement, the supporting element 40 has a better fixing effect on the one-way valve 10 and the four-way valve 20, can prevent the one-way valve 10 and the four-way valve 20 from relative dislocation or deflection, and can prevent the supporting element 40 from loosening and shaking relative to the one-way valve 10 or the four-way valve 20, and a stable frame structure is formed among the supporting element 40, the one-way valve 10 and the four-way valve 20, so that a refrigerant circulating system of the air conditioning equipment is more stable.

It should be noted that, two ends of the supporting plate 43 are recessed inwards to form the first circular groove 41 and the second circular groove 42, which is only the expression of the partial structure of the supporting element 40 abutting against the cylindrical outer peripheral surface of the main valve body 21 of the check valve 10 or the four-way valve 20, in other embodiments, two ends of the supporting plate 43 may also be provided with through holes, that is, the supporting plate 43 may be respectively sleeved with the main valve body 21 of the check valve 10 and the four-way valve 20 through the through holes at two ends, and at this time, the first circular groove 41 and the second circular groove 42 are circular grooves formed at the edges of the through holes at two ends of the supporting plate.

Furthermore, the supporting member 40 further includes a first bent edge (not shown) connected to an end of the supporting plate 43, the first bent edge abutting against the outer peripheral wall of the check valve 10; and/or, the supporting member 40 further includes a second bent side 44, the second bent side 44 is connected to an end portion of the supporting plate 43, and the second bent side 44 abuts against an outer peripheral wall of the main valve body 21 of the four-way valve 20.

With this arrangement, the first bent side or the second bent side 44 can increase the area of abutting contact between the support member 40 and the outer peripheral wall of the check valve 10 or the outer peripheral wall of the main valve body 21 of the four-way valve 20, so that the support member 40 can more firmly fix the check valve 10 and the four-way valve 20 while further restricting the rocking or the deflection of the support member 40 with respect to the check valve 10 or the four-way valve 20; in addition, when the support element 40 is welded to the check valve 10 and the main valve body 21, respectively, the first bent edge or the second bent edge 44 can make the support element 40 firmly contact the check valve 10 or the main valve body 21, thereby reducing the micro-motion of the support element 40 caused by thermal deformation.

Specifically, in a preferred embodiment of the present invention, the end of the support member 40 includes a second bent edge 44 for abutting against the outer peripheral wall of the main valve body 21, the second bent edge 44 is formed by bending from the end of the support plate 43, the second bent edge 44 is bent relative to the support plate 43 to form a second circular groove 42 having a semicircular shape or a substantially semicircular shape, and the second bent edge 44 is fitted to the cylindrical outer peripheral wall of the main valve body 21.

To facilitate folding over the ends of support element 40 to form first or second bending edges 44, support element 40 is provided with a bend opening intermediate its opposite ends. Specifically, the first bending edge includes a first bending portion and a second bending portion (not shown), and a gap between the first bending portion and the second bending portion is a bending opening; and/or, the second bending edge 44 includes a third bending portion 441 and a fourth bending portion 442, and a gap between the third bending portion 441 and the fourth bending portion 442 is a bending opening.

With such an arrangement, the bending opening can reduce the force required for bending the supporting member 40 and forming the first bending edge or the second bending edge 44, so that the supporting member can be bent to form the first bending edge or the second bending edge 44 more easily and quickly, thereby preventing the material of the supporting plate 43 from being distorted and deformed due to excessive force applied during bending.

Further, the first bending part and the second bending part are respectively located at the same side or two sides of the supporting plate 43; and/or the third bending portion 441 and the fourth bending portion 442 are respectively located at the same side or two sides of the supporting plate 43.

Specifically, in a preferred embodiment of the present invention, the folding directions of the third bending portion 441 and the fourth bending portion 442 are opposite to the folding direction of the supporting plate 43, and after the third bending portion 441 and the fourth bending portion 442 are bent and formed, they are respectively located at two sides of the supporting plate 43. The rocking or deflection of support element 40 relative to main valve body 21 along both sides of support plate 43 is further restricted, thereby significantly improving the stability of the fixation between support element 40 and main valve body 21, facilitating the welding fixation therebetween, and reducing the deflection of support element 40 relative to main valve body 21 during heat fusion.

Further, in order to ensure the welding quality between the support member 40 and the check valve 10 or the four-way valve 20, an electric welding projection 446 is provided on a side of the first bent side relatively close to the check valve 10; and/or, the second bent edge 44 is provided with an electric welding convex bubble 446 at the side relatively close to the four-way valve 20.

Specifically, in a preferred embodiment of the present invention, the welding projection 446 is a circular or other shaped protrusion on the surface of the first bending edge 44 or the second bending edge 44, and the protrusion is formed by applying an impact or pressing force to the first bending edge 44 or the second bending edge 44 with a hard tool or material to deform the material of the first bending edge 44 or the second bending edge 44. When the support member 40 is fixed to the check valve 10 and the four-way valve 20 by resistance welding, the electric welding bulb can collect more current and make the concentrated current flow from the first bent side or the second bent side 44 to the outer peripheral wall of the valve body of the check valve 10 or the outer peripheral wall of the main valve body 21, thereby allowing the electric welding bulb to collect a large amount of resistance heat in a short time to rapidly fuse and bond the materials.

It should be noted that the electric welding projection 446 is a process structure feature for facilitating the fixing of the support member 40 and the check valve 10 or the four-way valve 20 by the resistance welding method, and is not a necessary feature of the support member 40, and the support member 40 may not be provided with the electric welding projection 446, and the fixed connection of the check valve 10 and the four-way valve 20 may be realized by the laser welding or the like, and is not limited to the fixed connection by the resistance welding.

The valve assembly 100 of the present invention is configured such that the check valve 10 and the four-way valve 20 are fixedly connected by the support member 40 and are disposed in a refrigerant circulation system of an air conditioning apparatus. The check valve 10, the four-way valve 20 and the support element 40 together form a frame-type valve body assembly 100, the overall stability is better, the resonance frequency of the check valve 10 and the four-way valve 20 is further improved, and the risk of breakage of the joint between the check valve 10 and the four-way valve 20 under the action of external vibration or impact of the air conditioning equipment is reduced; in addition, the valve body assembly 100 optimizes the pipeline connection arrangement between the check valve 10 and the four-way valve 20, reduces the space volume occupied by the refrigerant circulation system in the air conditioning equipment, and saves the time and material cost for connecting the pipeline of the check valve and the four-way valve and installing the pipeline, thereby more conveniently and rapidly completing the installation of the refrigerant circulation system.

The present invention further provides an air conditioner (not shown) including any one of the valve assembly 100, wherein the valve assembly 100 is disposed in a refrigerant circulation system (not shown) of the air conditioner.

The four-way valve 20 includes a main valve body 21, a first connection pipe 22, a second connection pipe 23, a third connection pipe 24, a fourth connection pipe 25 (i.e., a D pipe, an E pipe, an S pipe, and a C pipe of the four-way valve 20, respectively), a pilot valve seat 26, an electromagnetic coil (not shown), and a pilot valve 27; the pilot valve 27 is fixedly arranged on the pilot valve seat 26, the first connecting pipe 22, the second connecting pipe 23, the third connecting pipe 24 and the fourth connecting pipe 25 are connected to the main valve body 21 and communicated with the inner cavity of the main valve body 21, the first connecting pipe 22 is communicated with the one-way valve 10 through the adapter pipe 30, the second connecting pipe 23 is connected with the indoor heat exchanger through a pipeline, the third connecting pipe 24 is connected with the compressor through a pipeline, and the fourth connecting pipe 25 is connected with the outdoor heat exchanger through a pipeline; the solenoid controls the pilot valve 27 to open and close by switching on and off the solenoid, and controls or switches the pipeline communication state of the four-way valve 20.

Specifically, an inner cavity is formed in the main valve body 21, a first piston 211 and a second piston 212 are respectively arranged at two ends of the inner cavity, the first piston 211 and the second piston 212 can move in the inner cavity along the axial direction of the main valve body 21, a first pressure cavity 213 is formed by the first piston 211 and the inner wall surface of the main valve body 21 in an enclosing mode at one end of the inner cavity, and a second pressure cavity 214 is formed by the second piston 212 and the inner wall surface of the main valve body 21 in an enclosing mode at the other end of the inner cavity. When the first piston 211 or the second piston 212 moves in the inner cavity of the main valve body 21, the size of the first pressure chamber 213 or the second pressure chamber 214 changes.

The four-way valve 20 further includes a first capillary 61, a second capillary 62, a third capillary 63, and a fourth capillary 64. One end of the first capillary tube 61 is connected to the pilot valve 27, and the other end is connected to the first inserting hole 54 at the side of the first connecting pipe 22 and communicated with the inner cavity of the first connecting pipe 22; one end of the second capillary 62 is connected to the pilot valve 27, and the other end is connected to the main valve body 21 and communicates with the first pressure chamber 213; one end of the third capillary 63 is connected to the pilot valve 27, and the other end is connected to the second insertion hole 55 at the side of the third connecting pipe 24 and is communicated with the inner cavity of the third connecting pipe 24; one end of the fourth capillary 64 is connected to the pilot valve 27, and the other end is connected to the main valve body 21 and communicates with the second pressure chamber 214.

A sliding frame 215 is further arranged in the main valve body 21, two ends of the sliding frame 215 are connected to the first piston 211 and the second piston 212, and the sliding frame 215 can move axially in the inner cavity of the main valve body 21 and simultaneously drive the first piston 211 and the second piston 212 to be linked; the sliding frame 215 is provided with a reversing sliding block 216, the reversing sliding block 216 can move along with the sliding frame 215, a V-shaped or U-shaped communication channel 217 is formed in the reversing sliding block 216, and in the moving process of the reversing sliding block 216, the communication channel 217 can be communicated with inner cavities of two adjacent second connecting pipes 23, third connecting pipes 24 and fourth connecting pipes 25.

When the first piston 211 moves to one end of the inner cavity of the main valve body 21, the first pressure chamber 213 is compressed, and at this time, the carriage 215 drives the reversing slider 216 to a region where the second connecting pipe 23 and the third connecting pipe 24 extend into the main valve body 21, the communication channel 217 communicates the inner cavities of the second connecting pipe 23 and the third connecting pipe 24, and simultaneously blocks the fourth connecting pipe 25 and the third connecting pipe 24, and the first connecting pipe 22 communicates with the fourth connecting pipe 25; when the second piston moves to the other end of the inner cavity of the main valve body 21, the second pressure chamber 214 is compressed, at this time, the carriage 215 drives the reversing slider 216 to the region where the third connecting pipe 24 and the fourth connecting pipe 25 extend into the main valve body 21, the communication channel 217 communicates the inner cavities of the third connecting pipe 24 and the fourth connecting pipe 25, and simultaneously blocks the second connecting pipe 23 and the third connecting pipe 24, and the first connecting pipe 22 and the second connecting pipe 23.

The following is the process of switching the heating working condition and the cooling working condition of the valve body assembly 100 in the air conditioning equipment provided by the invention:

a part of high-pressure refrigerant from the compressor passes through the check valve 10, enters the main valve body 21 of the four-way valve 20 from the first connecting pipe 22, a part of refrigerant enters the pilot valve 27 from the first capillary tube 61, at this time, the pilot valve 27 is opened under the action of the electromagnetic coil, the pilot valve 27 controls the first capillary tube 61 to be communicated with the second capillary tube 62, a part of refrigerant entering the first capillary tube 61 enters the second pressure chamber 214 through the second capillary tube 62, the second piston 212 is pushed to move under the action of high pressure, the second pressure chamber 214 is enlarged, the second piston 212 drives the first piston 211 to be linked in the same direction and compress the first pressure chamber 213 through the carriage 215 until the first piston 211 abuts against the right end part (the right end part of the main valve body 21 shown in fig. 4) of the main valve body 21, at this time, the reversing slider 216 moves to the region where the second connecting pipe 23 and the third connecting pipe 24 extend into the main valve body 21, the communication channel 217 communicates the inner, the refrigerant entering the inner cavity of the main valve body 21 from the first connecting pipe 22 is discharged out of the four-way valve 20 from the fourth connecting pipe 25 and sequentially flows through the outdoor heat exchanger, the throttling assembly, the indoor heat exchanger and the compressor, so that the refrigeration cycle is realized; then the pilot valve 27 is closed under the action of the electromagnetic coil, the pilot valve 27 controls the first capillary 61 to communicate with the third capillary 63, part of the refrigerant entering the first capillary 61 enters the first pressure chamber 213 through the third capillary 63, the first piston 211 is pushed to move under the action of high pressure, and the first pressure chamber 213 is enlarged, the first piston 211 drives the second piston 212 to move in the same direction through the carriage 215 and compress the second pressure chamber 214 until the second piston 212 abuts against the left end of the main valve body 21 (as shown in fig. 4, the left end of the main valve body 21), at this time, the reversing slider 216 moves to the region where the third connecting pipe 24 and the fourth connecting pipe 25 extend into the main valve body 21, the channel 217 communicates the inner cavities of the third connecting pipe 24 and the fourth connecting pipe 25, the refrigerant entering the inner cavity of the main valve body 21 from the first connecting pipe 22 exits the four-way valve 20 from the second connecting pipe 23 and flows through the indoor heat exchanger, the throttle subassembly, outdoor heat exchanger and compressor to realize heating cycle.

The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims

1. A valve body assembly is characterized by comprising a one-way valve (10), a four-way valve (20) and a supporting element (40), wherein the one-way valve (10) is communicated with the four-way valve (20), and the supporting element (40) is fixedly connected to the one-way valve (10) and the four-way valve (20) respectively.

2. A valve body assembly according to claim 1, wherein one end of the support member (40) is recessed inwardly and forms a first circular groove (41), the first circular groove (41) being in abutment with an outer peripheral wall of the check valve (10); the end of the support element (40) relatively far away from the first circular groove (41) is recessed inwards to form a second circular groove (42), and the second circular groove (42) is jointed with the peripheral wall of the main valve body (21) of the four-way valve (20).

3. Valve body assembly according to claim 1, characterized in that said support element (40) comprises a support plate (43) and a first bent edge connected to an end of said support plate (43), said first bent edge abutting against an outer peripheral wall of said one-way valve (10); and/or the presence of a catalyst in the reaction mixture,

the support element comprises a second bent edge (44), the second bent edge (44) is connected to the end of the support plate (43), and the second bent edge (44) abuts against the peripheral wall of the main valve body (21) of the four-way valve (20).

4. A valve body assembly according to claim 2 or 3, wherein the support member (40) is welded at one end to the outer peripheral wall of the check valve (10) and at the other end to the outer peripheral wall of the main valve body (21) of the four-way valve (20).

5. The valve body assembly of claim 3, wherein the first bent edge comprises a first bent portion and a second bent portion, and a bent opening (445) is disposed between the first bent portion and the second bent portion; and/or the presence of a catalyst in the reaction mixture,

the second bending edge (44) comprises a third bending part (441) and a fourth bending part (442), and a bending opening (445) is formed between the third bending part (441) and the fourth bending part (442).

6. The valve body assembly according to claim 5, wherein the first bending portion and the second bending portion are respectively located at the same side or two sides of the supporting plate (43); and/or the presence of a catalyst in the reaction mixture,

the third bending part (441) and the fourth bending part (442) are respectively located on the same side or two sides of the support plate (43).

7. A valve body assembly according to claim 4, wherein the first bent edge is provided with an electric welding convex bubble (446) at a side relatively close to the one-way valve (10); and/or the presence of a catalyst in the reaction mixture,

and one side of the second bent edge (44) relatively close to the four-way valve (20) is provided with an electric welding convex bubble (446).

8. The valve body assembly according to claim 1, wherein the number of the support members (40) is plural, and the plural support members (40) are provided at intervals in an axial direction of the check valve (10).

9. The valve body assembly of claim 1, further comprising an adapter tube (30), wherein the one-way valve (10) is connected to and in communication with the four-way valve (20) via the adapter tube (30); and/or the presence of a catalyst in the reaction mixture,

the one-way valve (10) and a main valve body (21) of the four-way valve (20) are arranged in parallel.

10. An air conditioning apparatus, characterized in that the air conditioning apparatus comprises a valve body assembly according to any one of claims 1 to 9.