阅读说明：本技术 一种四通阀滑块结构、包括其的四通阀和空调器 (Four-way valve sliding block structure, four-way valve comprising same and air conditioner ) 是由 周伟伟 甘威 黎长源 杨守武 曾启明 李晓芳 高鹏 杨勋雷 吴彬 于 2020-05-21 设计创作，主要内容包括：本发明提供一种四通阀滑块结构、包括其的四通阀和空调器。四通阀滑块结构,包括滑块本体,所述滑块本体的顶面形成有向上的凸起部以及位于所述凸起部两侧的平面部；所述滑块本体上设置有支撑块,所述支撑块构造为分布在所述凸起部两侧的平面部上的凸块结构；所述凸块结构的高度小于所述凸起部的高度。本发明通过在四通阀滑块的滑块本体上设置支撑块,在部分工况下通过支撑块对四通阀内的连接架提供支撑力,避免连接架即密封件受冲击力损坏,提升了四通阀的可靠性。(The invention provides a four-way valve sliding block structure, a four-way valve comprising the same and an air conditioner. The four-way valve sliding block structure comprises a sliding block body, wherein an upward convex part and plane parts positioned on two sides of the convex part are formed on the top surface of the sliding block body; the slider body is provided with supporting blocks which are in a lug structure distributed on the plane parts on two sides of the protruding part; the height of the bump structure is smaller than that of the protruding part. According to the four-way valve, the supporting block is arranged on the slider body of the slider of the four-way valve, and the supporting block provides supporting force for the connecting frame in the four-way valve under partial working conditions, so that the connecting frame, namely a sealing element, is prevented from being damaged by impact force, and the reliability of the four-way valve is improved.)

1. The utility model provides a cross valve slider structure, includes the slider body, its characterized in that:

an upward convex part and plane parts positioned at two sides of the convex part are formed on the top surface of the slider body;

the slider body is provided with supporting blocks which are in a lug structure distributed on the plane parts on two sides of the protruding part;

the height of the bump structure is smaller than that of the protruding part.

2. The slider for a four-way valve according to claim 1, wherein the supporting blocks are symmetrically disposed on both sides of the convex portion of the top surface.

3. The slider for a four-way valve of claim 1 wherein the top spherical or arcuate surface of the support block.

4. The four-way valve slider structure of any of claims 1-3, wherein the support block and the slider body are constructed as a unitary structure.

5. A four-way valve, comprising:

the valve comprises a valve body, a valve cavity and four ports, wherein the valve cavity and the four ports are formed in the valve body;

and disposed within the valve chamber:

the sealing assembly comprises two sealing pieces which are in sliding sealing contact with the inner wall of the valve cavity;

the connecting frame is arranged between the two sealing pieces and is simultaneously connected with the two sealing pieces;

the sliding block structure of four-way valve as claimed in any one of claims 1 to 4, which is slidably disposed at the lower side of the connecting frame, the sliding block of four-way valve moves synchronously with the connecting frame, and the flow passage inside the sliding block body communicates with different ports on the valve body for changing the communication relationship between the four ports.

6. The four-way valve according to claim 5, wherein a support block is located at a lower side of the connection frame and is capable of contacting the connection frame to support the connection frame.

7. The four-way valve of claim 6 wherein the link bracket is disengaged from the support block when gas is communicated within the valve cavity.

8. The four-way valve of claim 7 wherein the distance between the support block and the link bracket is 1.5mm to 2.5 mm.

9. The four-way valve of claim 7 wherein the link bracket contacts at least a portion of the support block when fluid is communicated within the valve cavity.

10. The four-way valve according to any one of claims 5 to 9, wherein a through hole is formed in the connection frame, and a protruding portion of a top surface of the slider body protrudes from a lower side of the connection frame to an upper side of the connection frame through the through hole, so that the slider body and the connection frame move synchronously.

11. An air conditioner, characterized by comprising a four-way valve according to any one of claims 5 to 10, wherein the four-way valve is connected to a refrigeration system of the air conditioner and is used for switching the flow direction of a refrigerant in the refrigeration system.

Technical Field

The invention relates to the technical field of four-way valves, in particular to a four-way valve slide block structure, a four-way valve comprising the same and an air conditioner.

Background

The four-way valve plays an important part for cold and hot switching in the air conditioner, and the reliability of the four-way valve determines the service life of the air conditioner. The four-way valve can not normally operate after a fault occurs, the most common problem of the four-way valve is mainly that the four-way valve has a liquid impact fault, namely, a sliding block of the four-way valve inevitably passes through the absolute middle position of a valve body in the actual reversing process, the E, S, C pipes of the valve body are completely sealed by the whole sliding block, so that the pressure cannot be leaked, especially, a liquid refrigerant sprayed by a compressor is difficult to compress in a liquid state, so that a connecting rod is stressed and tilted, sealing bowls at two ends of the connecting rod are easily influenced by moment to incline, and then the sealing bowl is directly broken under the transverse acting force of the liquid refrigerant, so that the air conditioner cannot normally operate.

Disclosure of Invention

In view of this, the present invention provides a four-way valve slider structure, a four-way valve including the same, and an air conditioner, which are at least used for solving the technical problem of poor impact resistance of a four-way valve sealing element in the prior art, and specifically:

in a first aspect, the invention provides a four-way valve slider structure, which comprises a slider body, wherein an upward convex part and plane parts positioned on two sides of the convex part are formed on the top surface of the slider body;

the slider body is provided with supporting blocks which are in a lug structure distributed on the plane parts on two sides of the protruding part;

the height of the bump structure is smaller than that of the protruding part.

Further optionally, the support blocks are symmetrically arranged on both sides of the protruding portion of the top surface.

Further optionally, the top of the support block is spherically or arcuately shaped.

Further optionally, the support block is constructed as a unitary structure with the slider body.

In a second aspect, the present invention provides a four-way valve comprising:

the valve comprises a valve body, a valve cavity and four ports, wherein the valve cavity and the four ports are formed in the valve body;

and disposed within the valve chamber:

the sealing assembly comprises two sealing pieces which are in sliding sealing contact with the inner wall of the valve cavity;

the connecting frame is arranged between the two sealing pieces and is simultaneously connected with the two sealing pieces;

according to the four-way valve sliding block structure, the four-way valve sliding block structure is arranged on the lower side of the connecting frame in a sliding mode, the four-way valve sliding block and the connecting frame move synchronously, and the flow channel in the sliding block body is communicated with different ports on the valve body and used for changing the communication relation among the four ports.

Further optionally, a support block is located on the lower side of the connecting frame and can contact with the connecting frame to support the connecting frame.

Further optionally, the connecting frame is disconnected from the support block when gas is circulated in the valve chamber.

Further optionally, the distance between the support block and the connecting frame is 1.5mm-2.5 mm.

Further optionally, the connecting frame contacts at least a portion of the support block when liquid is circulated within the valve cavity.

Further optionally, a through hole is formed in the connecting frame, and a top surface protruding portion of the slider body penetrates out of the upper side of the connecting frame through the through hole from the lower side of the connecting frame, so that the slider body and the connecting frame move synchronously.

In a third aspect, the present invention provides an air conditioner, including the above four-way valve, where the four-way valve is connected to a refrigeration system of the air conditioner, and is configured to switch a flow direction of a refrigerant in the refrigeration system.

According to the four-way valve, the supporting block is arranged on the slider body of the slider of the four-way valve, and the supporting block provides supporting force for the connecting frame in the four-way valve under partial working conditions, so that the connecting frame, namely a sealing element, is prevented from being damaged by impact force, and the reliability of the four-way valve is improved.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.

FIG. 1 shows a schematic diagram of a slider for a four-way valve in one embodiment of the present invention;

FIG. 2 shows a schematic diagram of a four-way valve according to an embodiment of the present invention.

In the figure:

10-a slider body; 11-a boss; 12-plane section; 13-a support block; 20-a valve body; 21-a first port; 22-a second port; 23-a third port; 24-a fourth port; 31-a seal; 40-connecting frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

According to the four-way valve, the supporting block is arranged on the sliding block of the four-way valve, so that when the liquid fluid causes large impact on the connecting frame in an extremely cold environment, the supporting block supports the connecting frame, the sealing assembly is prevented from deforming to cause sealing failure due to large stress deformation of the connecting frame, the operation reliability of the four-way valve is improved, and particularly the operation reliability in the extremely cold environment is improved. The invention is described below with reference to specific embodiments.