CN118088734A

CN118088734A - Valve assembly and thermal management assembly

Info

Publication number: CN118088734A
Application number: CN202211434042.7A
Authority: CN
Inventors: 曾坤; 刘浩; 覃速兵
Original assignee: Valeo Systemes Thermiques SAS
Current assignee: Valeo Systemes Thermiques SAS
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2024-05-28
Also published as: WO2024105157A1

Abstract

The invention relates to a valve assembly and a thermal management assembly. The first opening of the valve block of the valve assembly can be communicated with the second opening through the first valve cavity or can be communicated with the second opening through the second valve cavity, so that the valve assembly can be provided with a plurality of channels which are communicated with the first opening and the second opening respectively, and the valve assembly is compact in structure. In addition, by arranging the first valve core component in the first valve cavity and arranging the second valve core component in the second valve cavity, a plurality of channels which are respectively communicated with the first opening and the second opening and are arranged in the valve component can be selectively opened, so that the functionality of the valve component is improved.

Description

Valve assembly and thermal management assembly

Technical Field

The invention relates to a valve assembly and a thermal management assembly.

Background

Conventional air conditioning systems include four major components, namely a compressor, an evaporator, a condenser, and a valve assembly, which form a refrigerant circulation circuit. The valve assembly allows refrigerant to flow therein. The valve assembly has a function of guiding the fluid flow, thereby enabling the circulation of the refrigerant inside the air conditioning system.

As automotive air conditioning systems develop, the modes of operation they need to achieve become increasingly diverse, which results in the complexity of the refrigerant circulation circuit within the air conditioning system. The valve assembly of the air conditioning system in the prior art is also complicated with the complexity of the refrigerant circulation circuit, which results in the disadvantage that the valve assembly of the air conditioning system in the prior art is not compact enough in structure.

Disclosure of Invention

The invention aims to provide a valve assembly which has the advantage of compact structure.

It is also an object of the present invention to provide a thermal management assembly comprising the above valve assembly.

A valve assembly for directing a fluid, comprising: a valve block having a first opening, a second opening, and a first valve cavity; the first valve cavity is respectively communicated with the first opening and the second opening; the first valve core assembly is arranged in the first valve cavity; the valve assembly further includes a second valve spool assembly; the valve block is also provided with a second valve cavity; the second valve cavity is respectively communicated with the first opening and the second opening; the second valve core assembly is mounted in the second valve cavity.

In a specific embodiment, the second valve chamber is in communication with the first valve chamber.

In a specific embodiment, the valve block further has a bypass passage; the bypass passage communicates the first valve chamber and the second valve chamber.

In a specific embodiment, the valve block further has a first connecting channel and a second connecting channel; the first connecting passage communicates the first opening and the first valve chamber; the second connecting channel is communicated with the second opening and the first valve cavity;

The second connecting channel is provided with a communication port formed on the inner wall of the first valve cavity; the bypass passage has a first bypass port formed in an inner wall of the first valve chamber and a second bypass port formed in an inner wall of the second valve chamber.

In a specific embodiment, the first valve cavity inner wall includes a side wall and a bottom wall; the side wall of the first valve chamber defines an opening of the first valve chamber; an opening of the first valve cavity allows the first valve spool assembly to enter the first valve cavity; the communication port and the first bypass port are both located at a bottom wall of the first valve chamber.

In a specific embodiment, the second connection channel has a first channel portion and a second channel portion; the first passage portion has the communication port, and the second passage portion has the second opening; the first passage portion is parallel to the bypass passage.

In a specific embodiment, the second valve chamber has a side wall and a bottom wall; the sidewall of the second valve chamber defines an opening of the second valve chamber; an opening of the second valve cavity allows the second spool assembly to enter the second valve cavity; the second bypass port is formed in a side wall of the second valve chamber.

In a specific embodiment, the centerline of the first valve chamber is perpendicular to the centerline of the second valve chamber.

In a specific embodiment, the valve assembly further comprises a third valve core assembly; the valve block is also provided with a third valve cavity; the third valve core assembly is arranged in the third valve cavity; the second valve chamber is in communication with the third valve chamber, which is in communication with the second opening.

In a specific embodiment, the valve block further has a third connecting channel; the third connecting channel is provided with a valve port formed on the bottom wall of the second valve cavity and a first channel port formed on the inner wall of the third valve cavity; the second valve core assembly comprises a valve core; the valve core is used for controlling the opening degree of the valve port; the second bypass port is located upstream of the valve port and the first passage port is located downstream of the valve port in the flow direction of the fluid.

In a specific embodiment, the third connection channel has a third channel portion and a fourth channel portion; the third passage portion has the valve port, and the fourth passage portion has the first passage port.

In a specific embodiment, the valve block further has a fourth connecting channel; the fourth connecting channel is communicated with the third valve cavity and the second connecting channel.

In a specific embodiment, the valve block further has a third opening and a fourth opening; and a through channel is formed between the third opening and the fourth opening.

In a specific embodiment, the valve block further has a fifth opening; the first connecting passage communicates with the fifth opening.

A thermal management assembly for achieving this includes a valve assembly as described above.

The invention has the positive progress effects that: the first opening of the valve block can be communicated with the second opening through the first valve cavity or the second valve cavity, so that the valve assembly can be provided with a plurality of channels which are respectively communicated with the first opening and the second opening, and the valve assembly is compact in structure. In addition, by arranging the first valve core component in the first valve cavity and arranging the second valve core component in the second valve cavity, a plurality of channels which are respectively communicated with the first opening and the second opening and are arranged in the valve component can be selectively opened, so that the functionality of the valve component is improved.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description in conjunction with the accompanying drawings and embodiments, in which:

FIG. 1A is a schematic view of a valve assembly showing a fourth opening and a fifth opening;

FIG. 1B is a schematic view of a valve body showing a fourth opening and a fifth opening;

FIG. 1C is a schematic view of a valve assembly showing a first opening, a second opening, and a third opening;

FIG. 1D is a schematic view of a valve body showing a first opening, a second opening, and a third opening;

FIG. 2 is a cross-sectional view of the valve assembly of FIG. 1C taken along the direction A-A;

FIG. 3 is a schematic view of the valve body of FIG. 2;

FIG. 4 is a cross-sectional view of the valve assembly of FIG. 1C taken along the direction B-B;

fig. 5 is a schematic view of the valve body of fig. 4.

Detailed Description

The following discloses various embodiments or examples of the subject technology of the different implementations. Specific examples of components and arrangements are described below for purposes of simplifying the disclosure, and of course, these are merely examples and are not intended to limit the scope of the invention. For example, a first feature described later in this specification may be distributed over a second feature, and may include embodiments in which the first and second features are distributed in a direct relationship, and may also include embodiments in which additional features are formed between the first and second features, such that no direct relationship between the first and second features is possible. In addition, the reference numerals and/or letters may be repeated in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. Further, where a first element is described as being coupled or combined with a second element, the description includes embodiments in which the first and second elements are directly coupled or combined with each other, and also includes embodiments in which one or more other intervening elements are added to indirectly couple or combine the first and second elements with each other.

It should be noted that fig. 1-5 are only examples, which are not drawn to scale and should not be taken as limiting the scope of protection actually required by the present invention.

Fig. 1A and 1C illustrate a valve assembly 900 in one embodiment of the invention, comprising a valve block 1, wherein a valve body 1 is shown in fig. 1B and 1D. The valve assembly 900 is disposed in a fluid circuit for an air conditioning system. The fluid circuit may be a refrigerant fluid circuit or a coolant fluid circuit.

Referring to fig. 1A, 1B, 1C, 1D, 2 and 3, the valve assembly 900 includes a valve block 1, a first spool assembly 2 and a second spool assembly 3. The valve block 1 has a first opening 11, a second opening 12, a first valve chamber 1a and a second valve chamber 1b; the first valve cavity 1a is respectively communicated with the first opening 11 and the second opening 12, and the first valve core assembly 2 is installed in the first valve cavity 1a; the second valve chamber 1b communicates with the first opening 11 and the second opening 12, respectively; the second spool assembly 3 is mounted to the second valve chamber 1b.

This solution allows the first opening 11 of the valve block 1 to communicate with the second opening 12 both through the first valve chamber 1a and through the second valve chamber 1b, so that the valve assembly 900 can have a plurality of passages communicating with the first opening 11 and the second opening 12, respectively, which makes the structure of the valve assembly 900 compact. In addition, by providing the first spool assembly 2 in the first valve chamber 1a and providing the second spool assembly 3 in the second valve chamber 1b, the valve assembly 900 has a plurality of passages that communicate with the first opening 11 and the second opening 12, respectively, that can be selectively opened.

As can be seen with reference to fig. 2, 3,4, 5, in a specific embodiment, the second valve chamber 1b communicates with the first valve chamber 1a. The first opening 11 can communicate with the second opening 12 through the first valve chamber 1a and the second valve chamber 1 b. Specifically, the fluid F enters the interior of the valve block 1 from the first opening 11 and enters the first valve chamber 1a. In the first valve cavity 1a, the fluid F can be selectively changed into a first fluid F1 or a second fluid F2 under the action of the first valve core assembly 2; wherein the first fluid F1 bypasses the second valve chamber 1b and flows to the second opening 12, and the second fluid F2 flows to the second opening 12 through the second valve chamber 1 b.

As shown in fig. 2, the first spool assembly 2 has a fluid inlet 2a and a fluid outlet (not shown in the drawings), and the first path fluid F1 enters the first spool assembly 2 through the fluid inlet 2a and exits the first spool assembly 2 through the fluid outlet (not shown in the drawings). In a specific embodiment, the first spool assembly 2 is a spool assembly of an electromagnetically driven shut-off valve.

With continued reference to fig. 2,3, 4, 5, the valve block 1 also has a bypass passage 100; the bypass passage 100 communicates the first valve chamber 1a and the second valve chamber 1b. The second fluid F2 enters the second valve chamber 1b via the bypass passage 100 and flows through the second valve chamber 1b toward the second opening 12. In an embodiment not shown in the drawings, the second valve chamber 1b is in direct communication with the first valve chamber 1 a.

As shown in fig. 1c and 3, the valve block 1 further has a first connecting channel 101 and a second connecting channel 102; the first connecting passage 101 communicates the first opening 11 with the first valve chamber 1a; the second connecting passage 102 communicates the second opening 12 with the first valve chamber 1a; wherein the second connecting passage 102 has a communication port 102a formed on an inner wall of the first valve chamber 1a; the bypass passage 100 has a first bypass port 100a formed in the inner wall of the first valve chamber 1a and a second bypass port 100b formed in the inner wall of the second valve chamber 1 b. The bypass passage 100 communicates with the first valve chamber 1a through a first bypass port 100a and communicates with the second valve chamber 1b through a second bypass port 100b. The number of bypass channels 100 may be multiple. The plurality of bypass passages 100 may be parallel to one another. The first opening 11 can communicate with the bypass passage 100 through the first valve chamber 1a or with the first connecting passage 101, thereby making the structure of the valve block 1 more compact.

With continued reference to fig. 3, the inner wall of the first valve chamber 1a includes a side wall 1a-1 and a bottom wall 1a-2; the side wall 1a-1 of the first valve chamber 1a defines an opening 1a-3 of the first valve chamber 1a; the opening 1a-3 of the first valve chamber 1a allows the first spool assembly 2 to enter the first valve chamber 1a; the communication port 102a and the first bypass port 1O0a are both located at the bottom wall 1a-2 of the first valve chamber 1a, which makes the structure of the valve body 1 compact. More specifically, the first spool assembly 2 covers a portion of the first bypass port 100a and allows the second fluid F2 to enter the bypass passage 100 from another portion of the first bypass port 100 a.

As shown in fig. 3 and 4, the second connection passage 102 has a first passage portion 1021 and a second passage portion 1022; the first passage section 1021 has the communication port 102a, and the second passage section 1022 has the second opening 12; the first passage portion 1021 is parallel to the bypass passage 100. This design results in a compact construction of the valve block 1.

In a specific embodiment, the second valve chamber 1b has a side wall 1b-1 and a bottom wall 1b-2; the side wall 1b-1 of the second valve chamber 1b defines an opening 1b-3 of the second valve chamber 1b; the opening 1b-3 of the second valve chamber 1b allows the second spool assembly 3 to enter the second valve chamber 1b; the second bypass port 100b is formed in a side wall 1b-1 of the second valve chamber 1b.

The center line x-x of the first valve chamber 1a is perpendicular to the center line Y-Y of the second valve chamber 1 b. The openings 1a-3 of the first valve chamber 1a and the openings 1b-3 of the second valve chamber 1b are located on different sides of the valve body 1, respectively. This design makes the valve block 1 compact and easy to assemble.

Referring to fig. 1A, 1B, 4, 5, the valve assembly 900 further includes a third valve core assembly 4; the valve block 1 also has a third valve chamber 1c; the third valve core assembly 4 is mounted in the third valve cavity 1c; the second valve chamber 1b communicates with the third valve chamber 1c, and the third valve chamber 1c communicates with the second opening 12. The presence of the third valve core assembly 4 enables communication or disconnection between the second valve chamber 1b and the second opening 12. In a specific embodiment, the third spool assembly 4 is a spool assembly of an electromagnetically driven shut-off valve. The third valve chamber 1c has an opening facing different from the opening 1a-3 of said first valve chamber 1a and from the opening 1b-3 of the second valve chamber 1 b. The first valve chamber 1a, the second valve chamber 1b and the third valve chamber 1c are located on three adjacent and different faces of the valve block 1, respectively.

As shown in fig. 2,3,4, 5, the valve block 1 also has a third connecting channel 103; the third connecting passage 103 communicates the second valve chamber 1b and the third valve chamber 1c. The third connecting passage 103 has a valve port 103a formed in the bottom wall 1b-2 of the second valve chamber 1b and a first passage port 103b formed in the inner wall of the third valve chamber 1 c; the second spool assembly 3 includes a spool 31; the valve core 31 is used for controlling the opening degree of the valve port 103 a; the second bypass port 100b is located upstream of the valve port 103a and the first passage port 103b is located downstream of the valve port 103a in the flow direction of the fluid. In a specific embodiment, the second valve core assembly 3 is a valve core assembly of a thermal expansion valve. The valve core 31 is in the shape of a sphere. The center line Z-Z of the third valve chamber 1c is perpendicular to the center line X-X of the first valve chamber 1a and the center line Y-Y of the second valve chamber 1b.

The second valve core assembly 3, which is a valve core assembly of the thermal expansion valve, further includes a power head 30, a jack 33, a spring 34, an adjustment cap 35, and a bulb (not shown in the drawings), and a diaphragm 300 is provided inside the power head 30 and filled with a temperature sensing medium. The urging force of the spring 34 acts on the valve element 31 to move the valve element 31 in a direction approaching the valve port 103a, that is, in a direction reducing the opening degree of the valve port 103 a. The temperature sensing bulb is attached to the fluid pipeline to transfer the temperature of the fluid pipeline to the temperature sensing medium in the power head 30, so that the temperature of the temperature sensing medium is changed, and the diaphragm 300 is subjected to acting force, the acting force is transferred to the ejector rod 33 and is transferred to the valve core 31 through the ejector rod 33, so that the valve core 31 can move in a direction away from the valve port 103a, namely, in a direction of increasing the opening degree of the valve port 103 a. When the opening of the valve port 103a is within a certain range, fluid passing through the valve port 103a is throttled. The opening degree of the valve port 103a can be manually adjusted by adjusting the cap 35. The jack 33 penetrates the third channel portion 1031 of the third connection channel 103.

With continued reference to fig. 3 and 4, the third connection channel 103 has a third channel portion 1031 and a fourth channel portion 1032; the third channel portion 1031 has the valve port 103a, and the fourth channel portion 1032 has the first channel port 103b. The number of the fourth channel portions 1032 may be plural. The plurality of fourth channel portions 1032 are disposed parallel to each other.

In a particular embodiment, the third channel portion 1031 is perpendicular to the fourth channel portion 1032. The valve block 1 also has a fourth connecting channel 104; the fourth connecting passage 104 communicates the third valve chamber 1c with the second connecting passage 102. The valve block 1 also has a third opening 13 and a fourth opening 14; a through channel 105 is formed between the third opening 13 and the fourth opening 14. The third connection passage 103 has a second passage port 103c formed in an inner wall of the through passage 105; the second spool assembly 3 further comprises a sealing assembly 32, the sealing assembly 32 being adapted to seal the second channel port 103c. As shown in fig. 1A, 1B, 1C, 1D, the valve block 1 further has a fifth opening 15; the first connection channel 101 communicates with the fifth opening 15.

Referring to fig. 2, 3, 4, 5, fluid F enters the interior of the valve block 1 from the first opening 11 and enters the first valve chamber 1a through the first connecting passage 101; the fluid F can be selectively formed into the first fluid F1 or the second fluid F2 by the first valve element assembly 2.

Specifically, when the first valve element assembly 2 is in the open state and the valve element 31 closes the valve port 103a, the fluid F cannot pass through the second valve element assembly 3 but can only pass through the first valve element assembly 2, and the fluid F is the first path fluid F1. The first fluid F1 passing through the first spool assembly 2 enters the first passage portion 1021 of the second connection passage 102, and then flows to the second opening 12 through the first passage portion 1022 of the second connection passage 102.

When the first valve element assembly 2 is in a closed state and the valve element 31 opens the valve port 103a, the fluid F cannot pass through the first valve element assembly 2 but can only pass through the bypass passage 100 to enter the second valve chamber 1b, and the fluid F is the second fluid F2. Specifically, the second fluid F2 in the first valve chamber 1a enters the bypass passage 100 from the first bypass port 100a, enters the second valve chamber 1b from the second bypass port 100b, then enters the third passage portion 1031 of the third connecting passage 103 through the valve port 103a, and then enters the third valve chamber 1c through the fourth passage portion 1032 of the third connecting passage 103. When the third valve element assembly 4 is in the open state, the second fluid F2 in the third valve chamber 1c can flow into the first passage portion 1021 through the fourth connection passage 104 and then flow to the second opening 12 through the first passage portion 1022 of the second connection passage 102.

When the first spool assembly 2 is in the closed state and the spool 31 closes the valve port 103a and/or the third spool assembly 4 is in the closed state, the fluid F entering the first connecting passage 101 from the first opening 11 cannot flow to the second opening 12 through the first spool assembly 2 and the second spool assembly 3, but is guided to flow to the fifth opening 15.

While the invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and that any changes, equivalents, and modifications to the above embodiments in accordance with the technical principles of the invention fall within the scope of the invention as defined in the appended claims.

Claims

1. A valve assembly for directing a fluid, comprising:

A valve block (1) having a first opening (11), a second opening (12) and a first valve chamber (1 a); the first valve cavity (1 a) is respectively communicated with the first opening (11) and the second opening (12);

A first valve core assembly (2) mounted to the first valve cavity (1 a);

Characterized in that the valve assembly (900) further comprises a second valve core assembly (3); the valve block (1) is also provided with a second valve cavity (1 b); the second valve cavity (1 b) is respectively communicated with the first opening (11) and the second opening (12);

the second valve core assembly (3) is arranged in the second valve cavity (1 b).

2. Valve assembly according to claim 1, characterized in that the second valve chamber (1 b) communicates with the first valve chamber (1 a).

3. A valve assembly according to claim 2, wherein the valve block (1) further has a bypass channel (100); the bypass passage (100) communicates the first valve chamber (1 a) and the second valve chamber (1 b).

4. A valve assembly according to claim 3, wherein the valve block (1) further has a first connecting channel (101) and a second connecting channel (102); the first connecting channel (101) is communicated with the first opening (11) and the first valve cavity (1 a); the second connecting channel (102) is communicated with the second opening (12) and the first valve cavity (1 a);

Wherein the second connecting passage (102) has a communication port (102 a) formed on the inner wall of the first valve chamber (1 a); the bypass passage (100) has a first bypass port (100 a) formed in an inner wall of the first valve chamber (1 a) and a second bypass port (100 b) formed in an inner wall of the second valve chamber (1 b).

5. Valve assembly according to claim 4, wherein the inner wall of the first valve chamber (1 a) comprises a side wall (1 a-1) and a bottom wall (1 a-2); the side wall (1 a-1) of the first valve chamber (1 a) defines an opening (1 a-3) of the first valve chamber (1 a); an opening (1 a-3) of the first valve chamber (1 a) allows the first valve cartridge assembly (2) to enter the first valve chamber (1 a);

The communication port (102 a) and the first bypass port (100 a) are both located at a bottom wall (1 a-2) of the first valve chamber (1 a).

6. The valve assembly of claim 5, wherein the second connecting channel (102) has a first channel portion (1021) and a second channel portion (1022); the first passage portion (1021) has the communication port (102 a), and the second passage portion (1022) has the second opening (12);

The first passage portion (1021) is parallel to the bypass passage (100).

7. Valve assembly according to claim 4, wherein the second valve chamber (1 b) has a side wall (1 b-1) and a bottom wall (1 b-2); the side wall (1 b-1) of the second valve chamber (1 b) defines an opening (1 b-3) of the second valve chamber (1 b); an opening (1 b-3) of the second valve chamber (1 b) allows the second valve cartridge assembly (3) to enter the second valve chamber (1 b); the second bypass port (100 b) is formed in a side wall (1 b-1) of the second valve chamber (1 b).

8. Valve assembly according to claim 1, characterized in that the centre line (x-x) of the first valve chamber (1 a) is perpendicular to the centre line (Y-Y) of the second valve chamber (1 b).

9. The valve assembly of claim 4, wherein the valve assembly (900) further comprises a third valve core assembly (4); the valve block (1) is also provided with a third valve cavity (1 c); the third valve core assembly (4) is arranged on the third valve cavity (1 c); the second valve chamber (1 b) communicates with the third valve chamber (1 c), and the third valve chamber (1 c) communicates with the second opening (12).

10. A valve assembly according to claim 9, wherein the valve block (1) further has a third connecting channel (103); the third connecting passage (103) has a valve port (103 a) formed in a bottom wall (1 b-2) of the second valve chamber (1 b) and a first passage port (103 b) formed in an inner wall of the third valve chamber (1 c); the second valve core assembly (3) comprises a valve core (31); the valve core (31) is used for controlling the opening degree of the valve port (103 a);

The second bypass port (100 b) is located upstream of the valve port (103 a) and the first channel port (103 b) is located downstream of the valve port (103 a) in the flow direction of the fluid.

11. The valve assembly of claim 10, wherein the third connecting channel (103) has a third channel portion (1031) and a fourth channel portion (1032);

The third passage portion (1031) has the valve port (103 a), and the fourth passage portion (1032) has the first passage port (103 b).

12. The valve assembly according to claim 10, wherein the valve block (1) further has a fourth connecting channel (104); the fourth connecting passage (104) communicates the third valve chamber (1 c) with the second connecting passage (102).

13. Valve assembly according to claim 12, wherein the valve block (1) further has a third opening (13) and a fourth opening (14); a through passage (105) is formed between the third opening (13) and the fourth opening (14).

14. Valve assembly according to claim 12, wherein the valve block (1) further has a fifth opening (15); the first connecting channel (101) communicates with the fifth opening (15).

15. A thermal management assembly, characterized in that the thermal management assembly (900) further comprises a valve assembly (900) according to any of claims 1 to 14.