CN116792532A

CN116792532A - Electric valve and thermal management assembly

Info

Publication number: CN116792532A
Application number: CN202210263802.6A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2023-09-22

Abstract

The electric valve comprises a valve core and a valve body assembly, wherein the electric valve is provided with a valve cavity, a first channel, a second channel and a third channel, at least part of the valve cavity is positioned in the valve body assembly, the valve core is accommodated in the valve cavity, the valve core is provided with a first flow channel, and the first channel can be selectively communicated with at least one of the second channel and the third channel through the first flow channel by rotating the valve core; the valve body assembly comprises a first side part, the first channel is provided with a first interface on the first side part, the second channel is provided with a second interface on the first side part, the third channel is provided with a third interface on the first side part, and the directions of the first interface, the second interface and the third interface are the same or approximately the same, so that the butt joint of the first interface, the second interface and the third interface can be realized at the same time, and the steps of butt joint and fixing are simplified.

Description

Electric valve and thermal management assembly

Technical Field

The application relates to the field of thermal management, in particular to an electric valve and a thermal management assembly.

Background

Electrically operated valves are used primarily in thermal management systems for fluid shut-off or switching. Electrically operated valves typically have ports on different sides, each port communicating with other components through tubing. When the electric valve is connected with other parts in the thermal management system, the interfaces are required to be connected and fixed respectively.

Disclosure of Invention

The application aims to provide an electric valve and a thermal management assembly, which can simplify the installation of the electric valve and improve the assembly efficiency.

One embodiment of the present application provides an electrically operated valve including a valve cartridge and a valve body assembly, the electrically operated valve being applied to a refrigerant system, the electrically operated valve having a valve chamber, a first passage, a second passage, and a third passage, at least a portion of the valve chamber being located within the valve body assembly, at least a portion of the valve cartridge being received within the valve chamber, the valve cartridge having a first flow passage through which the first passage can selectively communicate with at least one of the second passage and the third passage by rotating the valve cartridge; the valve body assembly comprises a first side surface part, the first channel is provided with a first interface on the first side surface part, the second channel is provided with a second interface on the first side surface part, the third channel is provided with a third interface on the first side surface part, and the directions of the first interface, the second interface and the third interface are all the same or approximately the same.

Another embodiment of the present application provides a thermal management assembly comprising the electrically operated valve described above; the thermal management assembly includes a flow conduit plate having a second side portion and a second flow channel with a fourth interface, a fifth interface, and a sixth interface at the second side portion; the valve body assembly is fixedly connected with the runner plate, and the fourth interface, the fifth interface and the sixth interface face the first side face part; the first interface is at least partially opposite to the fourth interface, the second interface is at least partially opposite to the fifth interface, and the third interface is at least partially opposite to the sixth interface.

In the electric valve and the thermal management assembly provided by the application, the first interface, the second interface and the third interface are all positioned on the first side surface part, the orientations of the first interface, the second interface and the third interface are the same or approximately the same, and when the electric valve is installed with the runner plate, the communication of the first interface, the second interface and the third interface with the corresponding interfaces of the runner plate is realized, so that the installation steps of the electric valve are simplified, and the assembly efficiency is improved.

Drawings

FIG. 1 shows a schematic perspective view of one embodiment of an electrically operated valve of the present application;

FIG. 2 shows a schematic side view of the electrically operated valve of FIG. 1;

FIG. 3 shows a schematic view of the electrically operated valve of FIG. 2 in partial cross-section along line A-A;

FIG. 4 is a schematic perspective cross-sectional view of the valve body assembly and slider of the electrically operated valve of FIG. 2 taken along line A-A;

FIG. 5 shows a schematic perspective view of the valve cartridge of FIG. 3;

FIG. 6 shows an exploded schematic view of the electrically operated valve of FIG. 1;

FIG. 7 illustrates an exploded schematic view of an embodiment of a thermal management assembly;

fig. 8 shows a schematic perspective view of another embodiment of the electrically operated valve of the present application.

Detailed Description

The embodiments are specifically described below with reference to the accompanying drawings.

In a thermal management system of a vehicle, a refrigerant system is generally included, the refrigerant system includes a compressor, an evaporator, a condenser, an expansion valve, and the like, a fluid in the refrigerant system is a refrigerant, for example, R22, R134a, R744, and the like, and the electrically operated valve 100 in the present embodiment is applied to the refrigerant system.

As shown in fig. 1 to 4, the electric valve 100 includes a valve body 1, a valve body assembly 2, a driving portion 5, and the driving portion 5 includes a motor or other electric element. The driving part 5 comprises a valve rod 61, the valve rod 61 is in transmission connection with the valve core 1, and the valve rod 61 can drive the valve core 1 to rotate. The electric valve has a valve cavity 22, a first passage 23, a second passage 24 and a third passage 25, at least a portion of the valve cavity 22 is located in the valve body assembly 2, at least a portion of the valve cartridge 1 is received in the valve cavity 22, and the valve cartridge 1 has a first flow passage 12. By rotating the spool 1, the first passage 23 can communicate with at least one of the second passage 24 and the third passage 25 through the first flow passage 12.

As shown in fig. 1-4, the valve body assembly 2 includes a first side surface portion 28. The first channel 23 has a first interface 31 on the first side 28, the second channel 24 has a second interface 32 on the first side 28, and the third channel 25 has a third interface 33 on the first side 28, the orientation of the first interface 31, the second interface 32, and the third interface 33 are the same or substantially the same, and the orientation of the first interface 31, the second interface 32, and the third interface 33 are the same or substantially the same, which means that the angle between the orientations of the first interface 31, the second interface 32, and the third interface 33 is within a small range, for example, the angle between the orientations of the first interface 31, the second interface 32, and the third interface 33 is within 5 °.

As shown in fig. 3 and 5, the valve element 1 includes an outer wall portion 16, and the first flow passage 12 has a first port 14 and a second port 15 in the outer wall portion. The electric valve includes a drive section 5, the first port facing away from the drive section in the extending direction of the rotation axis X of the spool, the first port 14 communicates with the first passage 23 at any rotation angle of the spool 1, and the position of the second port 15 can be changed with the rotation of the spool 1. A part of the surface of the outer wall portion 16 is spherical, and in other embodiments, the valve element 1 may have a cylindrical or conical structure.

As shown in fig. 3 and 4, the first passage 23 has a first opening 34, the second passage 24 has a second opening 35, and the third passage 25 has a third opening 36, and the first opening 34, the second opening 35, and the third opening 36 are all located on the wall forming the valve chamber 22. The first opening 34 can communicate with the first port 31, the second opening 35 can communicate with the second port 32, and the third opening 36 can communicate with the third port 33. A first direction H is defined, which is the same as or parallel to the extending direction of the rotation axis X. In the first direction H, the second opening 35, the third opening 36 and the second port 15 are located at the same or similar height along the first direction H, "located at similar height" means that a portion of the second opening 35 is located at the same height as a portion of the second port 15, a portion of the third opening 36 is located at the same height as a portion of the second port 15, and the sizes of the second opening 35, the third opening 36 and the second port 15 may be different from each other. The second port 15 can be selectively at least partially opposite the second opening 35 or the third opening 36. The valve body assembly 2 may include more than one valve seat.

As shown in fig. 5, the spool 1 includes a second groove 13, and the second groove 13 is located at an outer wall portion of the spool 1. The second port 15 has a notch 131, the notch 131 is located at the edge of the second port 15, and one end of the second groove 13 is communicated with the notch 131. The depth and/or width of the second recess 13 becomes gradually smaller in a direction away from the second port 15. The second groove 13 can communicate with the second opening 35 or the third opening 36, and as the spool 1 rotates, the second groove 13 can finely adjust the flow rate of the refrigerant that enters the second opening 35 or the third opening 36, and the second groove 13 can also function as a throttle expansion.

As shown in fig. 1 to 5, in the present embodiment, along the first direction H, the opening directions of the first interface, the second interface, and the third interface are all opposite to the driving portion. The first opening 34 is disposed at least partially opposite the first port 14. The first opening 34 is opposite to the first port 14 such that the length of the flow path formed between the first passage 23 and the first duct 121 is short, so that the flow resistance between the first passage 23 and the first duct 121 is small, and the flow resistance between the first passage 23 and the first duct 121 does not substantially vary with the rotation of the spool 1. Specifically, the first channel 23 is a straight channel, and the extending direction of the first channel 23 is the same as the first direction H, so that the first channel 23 is shorter in length and smaller in flow resistance. The third channel 25 is generally "L" shaped. The electric valve 100 further includes a slider 4, in the first direction H, the slider 4 is located on one side of the valve element 1, the valve rod 61 is located on the other side of the valve element 1, and the slider 4 and the valve rod 61 are capable of limiting the valve element 1 in the first direction H.

As shown in fig. 1, the valve body assembly 2 includes two or more first mounting holes 281, the first side portion 28 has a flat surface, the first mounting holes 281 extend in a direction perpendicular to the first side portion, and the valve body assembly 2 is mounted with other components through the first mounting holes 281 such that the fastening force is perpendicular to the first side portion 28. The first side portion 28 is made of metal, such as aluminum alloy, and has high pressure resistance and deformation resistance, and is suitable for a refrigerant system.

As shown in fig. 7, a thermal management assembly includes the aforementioned electrically operated valve 100 and the flow path plate 7, and the valve body assembly 1 is detachably fixed to the flow path plate 7. The flow field plate 7 has a second side surface portion 72, the flow field plate 7 further has a second flow field 75, the second flow field 75 may have a plurality of mutually unconnected channels, and the second flow field 75 has a fourth interface 71, a fifth interface 73, and a sixth interface 74 at the second side surface portion 72. The fourth interface 71, the fifth interface 73 and the sixth interface 74 are oriented identically. When the valve body assembly 2 is fixedly connected with the flow channel plate 7, the fourth interface 71, the fifth interface 73 and the sixth interface 74 face the first side surface 72, the valve body assembly 2 can be fixed with the flow channel plate 7 through bolts or screws by the first mounting holes 281, the first side surface 28 and the second side surface 72 can be pressed tightly, and the end surfaces of the first side surface 28 and the second side surface 72 are sealed, for example, can be sealed by gaskets. The first interface 31 is at least partially disposed opposite the fourth interface 71, the second interface 32 is at least partially disposed opposite the fifth interface 73, and the third interface 32 is at least partially disposed opposite the sixth interface 74. Through setting up first interface 31, second interface 32, third interface 33 in same side portion, when motorised valve 100 is fixed with runner board 7, realize simultaneously that first interface 31, second interface 32, third interface 33 and runner board 7 correspond the intercommunication of interface, simplified the installation step of motorised valve, the motorised valve of being convenient for is integrated with runner board 7. In addition, valve body subassembly 2 and runner board 7 components of a whole that can function independently shaping, and motorised valve 100 is connected with runner board 7 detachably, can accomplish the motorised valve assembly earlier during the manufacturing, and then is connected motorised valve and runner board 7, compares in valve body subassembly 2 and runner board 7 integrated into one piece's scheme, can simplify the frock equipment that is used for manufacturing thermal management subassembly. The motor-driven valve can be independently detected before installation, if the thermal management component is faulty, the motor-driven valve can be detached for detection, so that the fault position can be easily checked. In addition, the mounting position of the motor-operated valve 100 on the flow path plate 7 can be set more flexibly. The runner plate 7 is also made of metal.

As shown in fig. 3 to 6, the valve body assembly 2 includes a main valve body 20 and a valve cap 21, the main valve body 20 having a valve cap chamber 201 defining a second direction Y perpendicular to an extending direction of the rotation axis X of the valve cartridge, and the valve cap 21 being located at one side of the valve cartridge 1 along the second direction Y. At least a portion of the valve cap 21 can extend into the valve cap cavity 201 in the second direction, thereby limiting the valve spool 1 in the second direction. At least a portion of the valve cover 21 is received in the valve cover cavity 201 and a portion of the second passage 24 is located in the valve cover 21.

The valve cover 21 includes a first groove 213, the first groove 213 being located at an outer peripheral portion of the valve cover 21, a cavity 2130 being formed between the first groove 213 and a wall forming the valve cover cavity 201. The first recess 213 reduces friction between the valve cap 21 and the wall forming the valve cap cavity 201 when the valve cap 21 is installed in the main valve body 20. The valve cover 21 is detachably fixed with the valve body assembly 2, so that the overhaul is convenient.

The valve cover 21 includes a third duct 212, the third duct 212 being located inside the valve cover, the third duct 212 extending in the second direction Y, the second opening 35 being located in the valve cover 21, one end of the third duct 212 being in communication with the second opening 35. The valve cap 21 has one or more first through holes 211, and the first through holes 211 communicate the third duct 212 and the cavity 2130. The sum of the flow areas of all the first through holes 211 is larger than the flow area of the third portholes 212, so that the flow resistance is smaller when fluid enters the cavity 2130 from the third portholes 212. The main valve body 20 includes a fourth bore 216, the fourth bore 216 communicating the cavity 2130 with the second port 32, the fourth bore 216 may be a straight bore. The third bore 212, the first through hole 211, the fourth bore 216, and the cavity 2130 are all part of the second passageway 24.

The first through holes 211 extend in a direction perpendicular to the second direction, and more than one first through holes 211 are uniformly distributed along the circumferential direction of the valve cover. The at least one first through hole 211 faces the fourth channel 216, and the flow resistance of the first through hole 211 to the fourth channel 216 may be reduced. As shown in fig. 3 and 6, in the present embodiment, the valve cover 21 includes four first through holes 211.

In another embodiment of the electric valve, as shown in fig. 8, the electric valve 200 has a driving part 5', a valve body assembly 2', a valve body (not shown in the figure), and the valve body and the driving part have the same structure as the previous embodiment. The valve body assembly 2 'includes a first side 28', the first side 28 'is parallel or substantially parallel to the first direction H, the first port 31', the second port 32', and the third port 33' are all located on the first side 28', and the opening directions of the first port 31', the second port 32', and the third port 33' are all perpendicular to the first direction H. The first channel (not shown in the figures) may be a straight channel, the extending direction of which is perpendicular to the first direction H. By this arrangement, the relative positions of the driving portion 5 'and the first side portion 28' can be changed, and different mounting conditions can be adapted.

In other embodiments of the electrically operated valve, the electrically operated valve may have more than three ports, e.g., four ports, five ports, six ports, etc., all ports located on the first side, all ports in communication with the valve chamber, and different ports in communication by rotation of the valve spool. After the first side surface part is installed, all the interfaces can be communicated with a fourth runner in the runner plate.

It should be noted that: the above embodiments are only for illustrating the present application and not for limiting the technical solutions described in the present application, and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present application may be modified or substituted by the same, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present application are intended to be included in the scope of the claims of the present application.

Claims

1. An electric valve comprising a valve core (1) and a valve body assembly (2), the electric valve being applied to a refrigerant system, characterized in that,

the electric valve is provided with a valve cavity (22), a first channel (23), a second channel (24) and a third channel (25), at least part of the valve cavity is positioned in the valve body assembly, at least one part of the valve core (1) is accommodated in the valve cavity (22), the valve core (1) is provided with a first flow channel (12), and by rotating the valve core (1), the first channel (23) can be selectively communicated with at least one of the second channel (24) and the third channel (25) through the first flow channel (12);

the valve body assembly (2) comprises a first side (28), the first channel is provided with a first interface on the first side, the second channel is provided with a second interface on the first side, the third channel is provided with a third interface on the first side, and the directions of the first interface, the second interface and the third interface are the same or approximately the same.

2. The electric valve according to claim 1, characterized in that the valve cartridge (1) comprises an outer wall portion (16), the first flow passage (12) having a first port (14) and a second port (15) at the outer wall portion;

the electric valve comprises a driving part (5), the first port is opposite to the driving part along the extending direction of the rotating shaft (X) of the valve core, and the first port (14) is communicated with the first channel (23) at any rotating angle of the valve core (1).

3. The electric valve according to claim 2, characterized in that the first passage (23) has a first opening (34), the second passage (24) has a second opening (35), the third passage (25) has a third opening (36), the first opening (34), the second opening (35) and the third opening (36) are all located at a wall forming the valve chamber (22); defining a first direction (H) which is the same as or parallel to the direction of extension of the rotation axis (X) of the valve body;

along the first direction (H), the second opening (35), the third opening (36) and the second port (15) are located at the same or similar height, the second port (15) being selectively capable of being at least partially opposite to the second opening (35) or the third opening (36).

4. An electrically operated valve according to claim 3, characterized in that in the first direction (H) the opening directions of the first, second and third ports are facing away from the drive part;

the first opening (34) is at least partially opposite to the first port (14), the first channel (23) is a straight channel, and the extending direction of the first channel (23) is the same as the first direction (H).

5. The electric valve according to claim 2, characterized in that the first side face is parallel or substantially parallel to the first direction (H), the opening directions of the first, second and third ports being all perpendicular to the first direction (H);

the first channel is a straight channel, the extension direction of which is perpendicular to the first direction (H).

6. The electric valve according to any one of claims 1 to 5, characterized in that the valve body assembly (2) comprises a main valve body (20) and a valve cover (21), the main valve body (20) having a valve cover cavity (201), defining a second direction (Y) perpendicular to the direction of extension of the rotation axis (X) of the valve core, along which second direction the valve cover (21) is located on one side of the valve core (1); at least a portion of the valve cover (21) is accommodated in the valve cover cavity (201), and a portion of the second channel is positioned in the valve cover.

7. The electrically operated valve according to claim 6, characterized in that the valve cover (21) includes a first groove (213), the first groove (213) being located at an outer peripheral portion of the valve cover (21); -a cavity (2130) is formed between the first recess (213) and a wall forming the valve cover cavity (201);

the valve cover (21) comprises a third pore canal (212), the third pore canal (212) is positioned in the valve cover, and the third pore canal (212) extends along the second direction; the valve cover (21) is provided with more than one first through hole (211), and the first through hole (211) is communicated with the third pore passage (212) and the cavity (2130); the main valve body (20) comprises a fourth orifice (216), the fourth orifice (216) communicating the cavity (2130) with the second port (32); the third duct, the first through hole, the cavity and the fourth duct are all part of the second channel;

the first through holes (211) extend along a direction perpendicular to the second direction, and at least one first through hole (211) faces the fourth pore channel (216).

8. The electrically operated valve of claim 6, wherein said valve body assembly (2) includes two or more first mounting holes (281), said first mounting holes (281) extending in a direction perpendicular to said first side portion.

9. The electric valve according to any one of claims 1 to 8, characterized in that the valve spool (1) has an outer wall portion (16), the first port (14) and the second port (15) being located at the outer wall portion of the valve spool (1), a part of the surface of the outer wall portion being spherical; the valve core (1) comprises a second groove (13), and the second groove (13) is positioned on the outer wall part of the valve core (1); the second port is provided with a notch (131), the notch is positioned at the edge of the second port, and one end of the second groove (13) is communicated with the notch; the depth and/or width of the second recess (13) becomes progressively smaller in a direction away from the second port (15).

10. A thermal management assembly comprising the electrically operated valve of any one of claims 1-9;

the thermal management assembly comprises a flow conduit plate (7), the flow conduit plate (7) having a second side surface portion (72) and a second flow conduit (75), the second flow conduit (75) having a fourth interface, a fifth interface and a sixth interface at the second side surface portion (72);

the valve body assembly is fixedly connected with the runner plate, and the fourth interface, the fifth interface and the sixth interface face the first side face part; the first interface is at least partially opposite to the fourth interface, the second interface is at least partially opposite to the fifth interface, and the third interface is at least partially opposite to the sixth interface.