CN220904617U - Valve device and thermal management system - Google Patents

Abstract

A valve device and a thermal management device. The valve device comprises a chamber formed by a valve body upper cover and a valve body lower cover, and a valve core assembly rotatably arranged in the chamber. The valve body lower cover is provided with a plurality of external flow passage openings, the valve core assembly is provided with a plurality of internal flow passages, the external flow passage openings are communicated through the internal flow passages, the communication relation among the external flow passage openings is changed by driving the valve core assembly to rotate around a first axis, and the valve core assembly is driven to rotate through the valve core main body. The valve core main body is driven to rotate through the gear, the gear is arranged on the peripheral surface of the valve core main body, a sealing element is arranged between the valve core assembly and the valve body lower cover, the sealing element is arranged at the first end of the valve core main body facing the valve body lower cover, the projection of the sealing element and the gear in the direction perpendicular to the first axis is not overlapped, and the projection of the gear in the direction of the first axis does not exceed the outer edge of the first end.

Description

Valve device and thermal management system

Technical Field

The present disclosure relates to the field of multi-way valves, and in particular, to a valve apparatus and thermal management system.

Background

The new energy thermal management system integrates heat exchange systems such as motor cooling, battery heating and cooling, and in-vehicle air conditioning refrigerating and heating, which means that the multi-way valve of the thermal management system has more and more requirements, and the existing multi-way valve comprises a valve body device, a valve core device and a sealing element; the valve core device can be rotatably arranged in the inner cavity of the valve body device, and the switching of different connection modes is realized through the rotation of the valve core device. The core component of the valve core device capable of rotating is a valve disc (which can be regarded as a valve core main body). The power output structure of the actuator is a gear structure, and correspondingly, the valve disc is generally provided with a gear at the outermost ring so as to realize transmission with the actuator, thereby realizing the switching function of the multi-way valve.

The valve disc is used as a part for communicating the valve body channel, has a flow channel space, and cannot be reduced limitlessly. The upper and lower parts of the valve disc are provided with flow passage spaces, and the inside of the valve disc cannot be provided with a gear structure, and only the outermost ring of the valve disc can be provided with the gear structure. The valve disc is positioned in the inner cavity of the valve body, the structural size of the valve body is affected, the outline structural size of the valve body is inevitably enlarged, and the valve disc is integrated in a thermal management system to occupy larger space, so that the material cost is increased.

Disclosure of Invention

In view of this, the present utility model provides a valve device and a thermal management device.

In a first aspect, a valve apparatus is provided that includes a chamber formed by a valve body upper cover and a valve body lower cover, and a spool assembly rotatably disposed in the chamber. The valve body lower cover is provided with a plurality of external flow passage openings, the valve core assembly is provided with a plurality of internal flow passages, the external flow passage openings are communicated through the internal flow passages, the communication relation among the external flow passage openings is changed by driving the valve core assembly to rotate around a first axis, and the valve core assembly is driven to rotate through the valve core main body. The valve core main body is driven to rotate through the gear, the gear is arranged on the peripheral surface of the valve core main body, a sealing element is arranged between the valve core assembly and the valve body lower cover, the sealing element is arranged at the first end of the valve core main body facing the valve body lower cover, the projection of the sealing element and the gear in the direction perpendicular to the first axis is not overlapped, and the projection of the gear in the direction of the first axis does not exceed the outer edge of the first end.

In one possible implementation, the valve body is provided with a first annular flange at the first end, the projection of the first annular flange and the gear in a direction perpendicular to the first axis is not coincident, and the sealing element is disposed in a space enclosed by the first annular flange.

In combination with the above possible implementation, in another possible implementation, the projection of the gear in the direction of the first axis does not exceed the outer edge of the first annular flange.

In combination with the above possible implementation manner, in another possible implementation manner, the gear is integrated with the valve core main body and is disposed along the entire circumference of the valve core main body.

In combination with the foregoing possible implementation manner, in another possible implementation manner, the valve core main body includes a second annular flange integrally formed on a second end of the valve core main body facing the valve body upper cover, and the gear is disposed on an outer peripheral surface of the second annular flange.

In combination with the foregoing possible implementation manner, in another possible implementation manner, the valve device further includes a positioning mechanism, where the positioning mechanism includes a limiting portion and a positioning portion, the limiting portion is disposed on the valve body upper cover, the positioning portion is disposed on the valve element assembly to rotate with the valve element assembly, and the limiting portion cooperates with the positioning portion to limit a start position and a stop position when the valve element assembly rotates.

In combination with the foregoing possible implementation manner, in another possible implementation manner, the positioning portion is disposed on an inner circumferential surface of the second annular flange.

In combination with the foregoing possible implementation manner, in another possible implementation manner, the limiting portion is disposed on a lower surface of the upper cover of the valve body, and protrudes into the second annular flange.

In combination with the possible implementation manner, in another possible implementation manner, the valve further comprises a driving piece, wherein the driving piece is rotatably arranged between the upper cover of the valve body and the lower cover of the valve body, and the driving piece is meshed with the gear for transmission.

In a second aspect, there is provided a thermal management system for controlling a heat exchange process within a vehicle, wherein the thermal management system comprises a valve arrangement as described in any of the first aspects.

The valve core main body is driven to rotate through the gear, the gear is arranged on the peripheral surface of the valve core main body, a sealing element is arranged between the valve core assembly and the valve body lower cover, the sealing element is arranged at the first end of the valve core main body facing the valve body lower cover, the projection of the sealing element and the gear in the direction perpendicular to the first axis is not overlapped, and the projection of the gear in the direction of the first axis does not exceed the outer edge of the first end. In this way, the diameter of the sealing element does not need to be reduced, the outer peripheral surface of the first end of the valve core main body corresponding to the sealing element is not provided with a gear, and therefore the outer diameter of the valve core assembly is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the disclosure and are not to be considered limiting of its scope. It should also be understood that the same or similar reference numerals are used throughout the drawings to designate the same or similar elements. It should also be understood that the drawings are merely schematic and that the dimensions and proportions of the elements in the drawings are not necessarily accurate.

Fig. 1 is a schematic perspective view of a valve device according to an embodiment of the present disclosure.

Fig. 2 is an exploded view of the valve device shown in fig. 1.

Fig. 3 is a schematic bottom view of a valve body top cover according to an embodiment of the disclosure.

Fig. 4 is a cross-sectional view of the valve device shown in fig. 1.

Fig. 5 is a view of the valve device of fig. 4 with the upper cover of the valve element and the lower cover of the valve body omitted.

Fig. 6 is a schematic perspective view of a transmission mechanism according to an embodiment of the present disclosure.

Reference numerals illustrate:

100-valve body, 101-shell, 110-valve body upper cover, 111-connecting lug, 112-hole, 113-column; 120-valve body lower cover, 130-chamber, 131-first end face, 132-second end face, 140-inlet, 150-outlet.

210-Driving piece, 220-gear and 211-sealing ring.

300-Positioning mechanism, 310-positioning part, 320-limiting part.

400-Spool assembly, 410-spool body, 411-base plate, 412-first annular flange, 413-second annular flange, 420-spool upper cover, 430-seal.

Detailed Description

Embodiments of the present disclosure are exemplarily described below with reference to the accompanying drawings. It should be understood that the implementations of the present disclosure may be varied and should not be construed as limited to the embodiments set forth herein, which are presented only to provide a more thorough and complete understanding of the present disclosure.

It should be understood that the term "include" and variations thereof as used in this disclosure are intended to be open-ended, i.e., including, but not limited to. The term "according to" is "at least partially according to," the term "plurality" is "two and more.

It should be understood that, although the terms "first" or "second," etc. are used in this disclosure to describe various elements, these elements are not limited by these terms, which are merely used to distinguish one element from another element.

Embodiments of the present application are described in detail below with reference to fig. 1 to 6. Fig. 1 is a schematic perspective view of a valve device according to an embodiment of the present disclosure. Fig. 2 is an exploded view of the valve device of fig. 1.

Fig. 3 is a bottom view of the valve body cover 110 shown in fig. 2. Fig. 4 is a cross-sectional view of the valve device shown in fig. 1. Fig. 5 is a cross-sectional view of the valve device of fig. 4 with the valve body lower cover 120 and the valve body upper cover 420 omitted. Fig. 6 is a schematic perspective view of a cartridge body 410 according to an embodiment of the present disclosure.

The valve device includes a valve body 100, a valve cartridge assembly 400, and a positioning mechanism 300. The valve cartridge assembly 400 is rotatably disposed within the valve body 100 about a first axis. The positioning mechanism 300 is disposed between the valve core assembly 400 and the valve body 100 for defining a start position and a stop position of the rotation of the valve core assembly 400. When the valve element assembly 400 rotates in the valve body 100, the correspondence between the internal flow passage and the external flow passage opening of the valve device can be changed, thereby realizing control of a plurality of flow passages. The positioning mechanism 300 is used for controlling the starting position and the stopping position of the valve core assembly 400 in the valve body 100, so as to ensure that the inner runner and the outer runner are correctly corresponding. The constitution and the relationship thereof will be described in detail below with reference to the drawings.

The main body of the valve body 100 is a housing 101 composed of a valve body upper cover 110 and a valve body lower cover 120. The housing 101 defines a chamber 130 therein for receiving the valve cartridge assembly 400, and is further provided with external fluid ports, i.e., an inlet 140 and an outlet 150, for communicating the inside and outside of the chamber 130. In addition, the housing 101 is further provided with a coupling lug 111 for mounting the driving member 210 and a column 113 for mounting an actuator (not shown), the coupling lug 111 and the column 113 being for fixing the actuator to the valve body 100 as a single body.

The valve body upper cover 110 has a generally disk-shaped structure, with one side being a top surface and the other side being a bottom surface (lower surface). The edge of the valve body upper cover 110 is provided with a connecting lug 111 protruding along the radial direction, the top surface is provided with three stand columns 113 distributed along the circumferential direction, and the bottom surface is provided with a limiting part 320. The connecting lug 111 has a ring-shaped structure, and the center is a hole 112. The limiting portion 320 is a protruding structure of the bottom surface of the valve body upper cover 110. The stopper 320 has a first predetermined distance from the center of the valve body upper cover 110, which is smaller than the radius of the valve body upper cover 110. One side of the valve body upper cover 110 where the stopper 320 is provided faces the valve body lower cover 120 when the valve body upper cover 110 is connected with the valve body lower cover 120.

The valve body lower cover 120 has a substantially cylindrical shape, and has a diameter comparable to that of the valve body upper cover 110 and an axial dimension larger than that of the valve body upper cover 110. The outer peripheral edge of the valve body lower cover 120 is provided with a transmission mechanism mounting part for being matched with the connecting lug 111 of the valve body upper cover 110, the transmission mechanism mounting part protrudes out of the peripheral surface of the valve body lower cover 120 along the radial direction, and the inside is a containing cavity and a positioning column. One end surface of the valve body lower cover 120 is provided with a concave part, so that the end surface forms a cylindrical opening cavity; the end face faces the valve body upper cover 110 when the valve body upper cover 110 is connected with the valve body lower cover 120; the valve body upper cover 110 closes the opening of the cavity when mounted to the end surface of the valve body lower cover 120, forming the chamber 130 of the valve body 100. The chamber 130 is cylindrical and includes two opposite first end surfaces 131 and second end surfaces 132, which can also be regarded as the bottom surface of the upper valve body cover 110 and the bottom surface of the recess of the lower valve body cover 120. The open cavity is also in communication with the receiving cavity in the transmission mounting portion. The center of the bottom surface of the open cavity is also provided with a main positioning column for forming a rotational connection with the valve core assembly 400, the center line of which is the first axis. The bottom of the open cavity (the floor of the valve body lower cover 120) is provided with a plurality of external flow ports, namely an inlet 140 and an outlet 150. For example, in the present embodiment, the valve device is an eight-way valve, and 4 inlets 140 and 4 outlets 150 are provided. The specific number of the external flow passage ports may be set according to actual requirements, and is not limited to the number shown in the present embodiment.

The valve cartridge assembly 400 includes a valve cartridge body 410, a valve cartridge upper cover 420, and a seal 430. The cartridge body 410 has a disk-like shape. The valve body 410 includes a circular bottom plate 411 and first and second annular flanges 412 and 413 provided at both sides of the bottom plate 411, that is, a first end (an end facing the valve body lower cover 120 in an assembled state) of the valve body 410 is the first annular flange 412; the second end (the end facing the valve body upper cover 110 in the assembled state) is a second annular flange 413; each extending along the peripheral edge of the bottom plate 411 and protruding in opposite directions in the axial direction. The center of the bottom plate 411 is also provided with a hollow rotating shaft. The area formed by the second annular flange 413 and the bottom plate 411 is used for embedding and mounting the valve core upper cover 420. The inner circumferential surface of the second annular flange 413 is provided with a positioning portion 310 protruding toward the center of the spool body in the radial direction, which extends to the bottom plate 411 and the top surface of the second annular flange 413 in the axial direction. The positioning portion 310 has a second predetermined distance from the center, which is smaller than the radius of the valve body and approximately equal to the first predetermined distance from the limiting portion 320 in the valve body upper cover 110 to the center of the valve body upper cover 110. The area enclosed by the first annular flange 412 is used for the insert mounting of the seal 430. The valve body 410 is further provided with a gear 220, and the gear 220 is provided along the outer circumferential surface of the valve body 410, specifically, on the outer circumferential surface of the second annular flange 413. In this way, the first annular flange 412 does not coincide with the projection of the gear 220 in the direction perpendicular to the first axis, and the projection of the gear 220 in the direction of the first axis does not exceed the outer edge of the first end (the outer periphery of the first flange 412).

The valve core upper cover 420 has a disk-like structure having a central hole, and a cavity (not shown) is provided therein. The spool upper cover 420 is assembled coaxially with the spool body 410 and is seated in the second annular flange 413, with an internal flow path of the spool assembly 400 being formed between the spool upper cover 420 and the spool body 410.

The sealing member 430 is a disk-shaped structure, and is disposed coaxially with the cartridge body 410 at the bottom of the outside of the cartridge body 410, i.e., is received in a region defined by the first annular flange 412. The seal 430 is misaligned with a projection of the gear 220 in a direction perpendicular to the first axis.

When the valve cartridge assembly 400 is integrally assembled into the chamber 130 of the valve body 100, the upper end surface of the valve cartridge assembly 400 (i.e., the top surface of the valve cartridge upper cover 420) faces the bottom surface of the valve body upper cover 110, and the lower end surface (the lower surface of the sealing member 430) is in sealing contact with the bottom surface of the valve body lower cover 120. The valve core assembly 400 is in relatively rotatable shaft hole fit with the central positioning column of the valve body lower cover 120 through the central hole of the valve core main body 410. When the valve body 410 is driven to rotate the valve body assembly 400, different corresponding relations can be formed between the inner flow passage of the valve body assembly 400 and the outer flow passage opening of the valve body lower cover 120. The seal 430 is not coincident with the projection of the gear 220 in a direction perpendicular to the first axis.

The projection of the gear 220 in the first axis direction does not exceed the outer edge of the first end (the first annular flange 412) of the spool body 410, i.e., the addendum circle diameter of the gear 220 is equal to or smaller than the outer diameter of the first annular flange 412. With respect to the prior art described in the background section, this corresponds to the case where the outer diameter of the first end of the cartridge body 140 becomes smaller by moving the gear 220 up from the first end to the second end of the cartridge body 410; the second end of the valve body 140 may be properly reduced without the limitation of the sealing member 430, so that the outer diameter of the gear 220 is smaller than or equal to the outer diameter of the first end of the valve body 410, thereby reducing the overall volume of the valve body and the valve core assembly.

The driving member 210 is a coaxially disposed duplex gear, one end of which is used for driving the valve core assembly 400, and the other end of which is used for driving the actuator. The gear 220 corresponds to a ring gear of the outer peripheral surface of the second annular flange 413. The diameter of the addendum circle of the ring gear is the same as the diameter of the first annular flange 412 of the spool body 410. In this embodiment, the ring gear is integrally formed with the valve body 410. In some alternative embodiments, the ring gear may also be a separate piece that is integrally formed with the cartridge body 410 by assembly. The driving member 210 is mounted on the transmission mechanism mounting portion of the valve body lower cover 120, specifically, is inserted into the accommodating cavity of the mounting portion and forms a shaft hole capable of rotating relatively with the positioning column. When the upper valve body cover 110 and the lower valve body cover 120 are assembled together, the connecting lugs 111 of the upper valve body cover 110 cooperate with the transmission mounting portions of the lower valve body cover 120 to axially and radially position the driving member 210, and one end of the driving member 210 protrudes from the hole 112 to engage with an actuator. A sealing ring 211 is also provided between the driving member 210 and the connecting lug 111. When the cartridge assembly 400 is assembled with the chamber 130 of the valve body 100, a gear ring (gear 220) of the outer circumference of the cartridge body 410 may be engaged with the driving member 210. When the driving member 210 rotates, the valve core main body 410 can be driven to rotate the valve core assembly 400.

The positioning mechanism 300 includes a positioning portion 310 and a limiting portion 320. The positioning portion 310 is disposed on the valve core assembly 400, specifically on the inner circumferential surface of the second annular flange 413 in the valve core body 410. The limiting portion 320 is disposed on the housing 101, specifically on the lower surface of the valve body upper cover 110. The positioning portion 310 has a second predetermined distance from the center of the valve body 410, which is smaller than the radius of the valve body 410 and is approximately equal to the first predetermined distance from the limiting portion 320 of the valve body upper cover 110 to the center of the valve body upper cover 110. Thus, when the valve body 100 and the valve core assembly 400 are assembled into a whole, the limiting part 320 protrudes into the area surrounded by the second annular flange 413, and the positioning part 310 and the limiting part 320 form a staggered position relationship in the axial direction of the first axis and are positioned on the same rotation circumference in the radial direction; the positioning portion 310 is blocked by the limiting portion 320 when rotated to a predetermined position in the forward and reverse directions with the valve cartridge assembly 400, thereby determining the start position and the stop position of the valve cartridge assembly 400.

In this design, the positioning portion 310 is disposed in the circumferential surface of the valve core assembly 400, so that the gear 220 is not blocked, and therefore, the gear 220 can be disposed to be distributed on the entire circumferential surface, and the distribution range of teeth is not required to be designed according to the position of the positioning portion 310. In addition, when the customer needs different rotation angles of the valve core assembly 400, only the position of the limiting part 320 of the valve body upper cover 110 needs to be changed, and the structure of the valve core assembly 400 does not need to be changed, so that the universality of the valve core assembly 400 is improved, and the cost is reduced.

In some alternative embodiments, the positioning portion 310 and the limiting portion 320 may have other structures and/or positions, so long as the positioning portion 310 is located on the valve core assembly 400, the limiting portion 320 is located on the valve body 100, and the positioning portion 310 and the limiting portion 320 form a staggered positional relationship in an axial direction and are located on the same rotation circumference in a radial direction after the assembly is completed. For example, the positioning portion 310 may also be disposed on the top surface of the valve core upper cover 420, and the positioning portion 310 may also interfere with the limiting portion 320 during rotation of the valve core upper cover 420 along with the valve core main body 410, thereby realizing positioning/limiting functions. Or a separate disc-shaped part is further provided above the valve body upper cover 420, and the upper surface of the part is provided with the positioning part 310.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a valve device, includes by valve body upper cover and the cavity that the valve body lower cover formed, rotationally set up in the case subassembly of cavity, the valve body lower cover sets up a plurality of outside runner ports, the case subassembly sets up a plurality of internal runner, outside runner port is via inside runner intercommunication, through the drive the case subassembly rotates around first axis and changes each communication relation between the outside runner port, the case subassembly is driven and is rotated its characterized in that through the case main part:

The valve core main body is driven to rotate through the gear, the gear is arranged on the peripheral surface of the valve core main body, a sealing piece is arranged between the valve core assembly and the valve body lower cover, the sealing piece is arranged at the first end of the valve core main body facing the valve body lower cover, the projection of the sealing piece and the gear in the direction perpendicular to the first axis is not overlapped, and the projection of the gear in the direction of the first axis does not exceed the outer edge of the first end.

2. The valve device of claim 1, wherein the spool body is provided with a first annular flange at the first end, the first annular flange being misaligned with a projection of the gear in a direction perpendicular to the first axis, the seal being disposed within a space enclosed by the first annular flange.

3. The valve device of claim 2, wherein a projection of the gear in the direction of the first axis does not exceed an outer edge of the first annular flange.

4. The valve device according to claim 1, wherein the gear is integral with the spool body and is disposed along the spool body over the outer peripheral surface thereof in a full circle.

5. The valve device according to claim 4, wherein the spool body includes a second annular flange integrally formed on a second end of the spool body facing the valve body upper cover, the gear being provided on an outer peripheral surface of the second annular flange.

6. The valve device of claim 5, further comprising a positioning mechanism comprising a limit portion and a positioning portion, the limit portion being disposed on the valve body upper cover, the positioning portion being disposed on the valve element assembly to rotate with the valve element assembly, the limit portion cooperating with the positioning portion to limit a start position and a stop position of the valve element assembly when rotating.

7. The valve device according to claim 6, wherein the positioning portion is provided on an inner circumferential surface of the second annular flange.

8. The valve device of claim 7, wherein the limit portion is disposed on a lower surface of the valve body upper cover and protrudes into the second annular flange.

9. The valve device of claim 1, further comprising a driver rotatably disposed between the upper valve body cover and the lower valve body cover, the driver in meshed communication with the gear.

10. A thermal management system for controlling a heat exchange process in a vehicle, comprising a valve arrangement according to any one of claims 1 to 9.