CN211259733U

CN211259733U - Reversing valve and automobile thermal management system

Info

Publication number: CN211259733U
Application number: CN201922318487.9U
Authority: CN
Inventors: 张弘影; 周辉; 刘照伟
Original assignee: Tianjin Ailite Automotive Technology Co ltd
Current assignee: Tianjin Ailite Automotive Technology Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-08-14
Anticipated expiration: 2029-12-20

Abstract

The utility model provides a switching-over valve and car thermal management system relates to fluid medium control valve technical field, and the main objective is in order to solve the not enough technical problem of three-way valve regulatory function that exists among the prior art. The reversing valve comprises a valve body with a cavity arranged therein and a plunger arranged in the cavity along the axial direction of the valve body; the periphery of the valve body is uniformly distributed with N interfaces, the interfaces are communicated with the cavity, the plunger is provided with a through hole, the through hole is communicated with at least two interfaces, at least one interface is not communicated with the through hole, and when the plunger rotates along the axis, the interfaces correspondingly communicated with the through hole are changed; n is an integer and N is not less than 3. The reversing valve can be used in an automobile thermal management system. Because the valve body is provided with the plurality of interfaces, the plunger inside the valve body can be communicated with the plurality of interfaces, and therefore after the plunger rotates by a certain angle, the conduit connected with the plunger can be changed, and the flow direction of fluid media in the conduit can be conveniently adjusted.

Description

Reversing valve and automobile thermal management system

Technical Field

The utility model belongs to the technical field of fluid medium control valve technique and specifically relates to a switching-over valve and car thermal management system are related to.

Background

With the development of the automobile industry and the pursuit of people for travel comfort, a battery cooling system and an air conditioning system in an automobile are continuously improved and improved, and related pipeline designs are continuously optimized. In battery cooling systems, the flow direction of the battery coolant needs to be adjusted for different needs: such as controlling the flow of coolant between the heater and the battery, between the heat exchanger and the battery, and between the heat sink and the battery. In the prior art, a three-way valve is used for adjusting the flow direction of the cooling liquid or other fluid media. However, the traditional three-way valve has limited adjusting capacity and cannot meet the adjusting requirements of the three different types, so that an additional adjusting valve is often required to be additionally arranged to realize the corresponding function, the related adjusting system is complex, and the working efficiency of the system is also influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a switching-over valve and car thermal management system to solve the not enough technical problem of three-way valve regulatory function that exists among the prior art. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a reversing valve, which comprises a valve body with a cavity arranged inside and a plunger arranged in the cavity along the axis direction of the valve body; wherein the content of the first and second substances,

the periphery of the valve body is uniformly distributed with N interfaces, the interfaces are communicated with the cavity, the plunger is provided with through holes capable of communicating different interfaces, and when the plunger rotates along the axis, the interfaces correspondingly communicated with the through holes are changed; n is an integer and N is not less than 3.

Because the valve body is provided with a plurality of interfaces, the number of the interfaces is more than or equal to three, the valve body can be externally connected with at least three conduits, and the plunger positioned in the valve body is respectively communicated with the plurality of interfaces, so that the conduit connected with the plunger can be changed after the plunger rotates by a certain angle, and the flow direction of fluid media in the conduit can be conveniently adjusted.

In the above technical solution, preferably, the number of the through holes is one, the through holes communicate with at least two of the ports, and at least one of the ports does not communicate with the through holes.

In the above technical solution, preferably, two ends of the through hole are respectively a first opening and a second opening, wherein the width of the second opening is greater than that of the first opening; when the first opening is communicated with one interface, the second opening is simultaneously communicated with at least two interfaces.

The fluid medium flows into the plunger from the first opening through a certain interface and then flows to at least two interfaces from the second interface, and in the process, the direction change adjustment of the fluid medium is realized.

In the above technical solution, preferably, the central angle corresponding to the second opening is α, and α is greater than or equal to 120 ° and less than or equal to 150 °.

In the above technical solution, preferably, the number of the ports is four, the through hole passes through the axis of the plunger and one side of the second opening is offset toward the position of the first opening.

In the above technical solution, preferably, two ends of the through hole are respectively a first opening and a second opening with the same size, and the first opening and the second opening are both communicated with one of the interfaces.

In the above technical solution, preferably, the central angle of the through-hole is β, β is an integral multiple of 360 °/N, and β is greater than 0 ° < β ≦ 180 °.

In the above technical solution, preferably, the number of the through holes is not less than two, and any one of the through holes communicates with different interfaces.

In the above technical solution, preferably, the reversing valve further includes a plurality of flow guide pipes, wherein the flow guide pipes are fixedly disposed outside the interface.

In the above technical solution, preferably, the flow guide tube has at least two inner diameters.

In the above technical solution, preferably, the reversing valve further includes a driving device, and the driving device is connected to the plunger and drives the plunger to rotate in the axial direction.

In the above technical solution, preferably, the driving device is a worm transmission mechanism.

The utility model also provides an automobile heat management system, including above-mentioned arbitrary switching-over valve.

In the automobile thermal management system, the reversing valve can be installed at the position related to battery cooling and air conditioning management, and the flow direction of fluid in a pipeline system is adjusted by adjusting the rotation of a plunger in the reversing valve.

Compared with the prior art, the utility model provides a reversing valve and car thermal management system, wherein the reversing valve includes the valve body of establishing the cavity in and the plunger that is located the valve body inside, and valve body week side is provided with a plurality of interfaces, when the plunger rotates, can communicate different interfaces to make the liquid that flows in through one of them interface can flow in different interfaces respectively, thereby convenient regulation liquid flow direction; in addition, compared with the traditional three-way valve, the plunger can be simultaneously communicated with three or even four interfaces, so that the flowing direction of liquid can be better adjusted; the rotation angle of the plunger can be accurately controlled through the worm transmission system, and a better adjusting effect is achieved. Considering that the space of the automobile is limited, in order to better save the space occupied by the equipment, the pipe diameters of the flow guide pipes connected with the interfaces are different, the flow guide pipe with larger inner diameter can be selected for the pipeline with larger flow, and the flow guide pipe with smaller inner diameter can be selected for the pipeline with smaller flow.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the reversing valve of the present invention;

FIG. 2 is a schematic cross-sectional view of the valve body of FIG. 1;

FIG. 3 is a schematic structural view of the plunger of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the plunger of FIG. 3;

FIG. 5 is a schematic structural view of the worm drive system of FIG. 1;

fig. 6 is a schematic structural view of the driving device and the plunger of the present invention cooperating with each other;

fig. 7 is a schematic sectional structure view of a valve body in a second embodiment of the reversing valve of the present invention;

FIG. 8 is a schematic view of the plunger of FIG. 7;

fig. 9 is a cross-sectional view of the plunger of fig. 8. In the figure: 1. a valve body; 2. a plunger; 21. a through hole; 3. an interface; 4. a first opening; 5. a second opening; 6. a flow guide pipe; 7. a worm drive; 71. a motor; 72. a worm; 73. a primary gear; 74. a secondary gear; 75. and a third-stage gear.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

FIG. 1 is a schematic view of the overall structure of the reversing valve of the present invention; as can be clearly seen from the figure, the valve body of the reversing valve comprises an upper part and a lower part, wherein the upper part is internally provided with a driving device, the lower part is provided with a valve body chamber, a plunger is positioned in the chamber, in addition, the interfaces of the valve body are also uniformly distributed at the position, and the guide pipe is connected with the valve body through the interfaces.

FIG. 2 is a schematic cross-sectional view of the valve body of FIG. 1; in the figure, the plane of the interface is taken as a section, so that the plunger is positioned in the cavity of the valve body, and the through hole on the plunger is communicated with three different interfaces at the same time.

FIG. 3 is a schematic structural view of the plunger of FIG. 1; the upper end of the plunger is connected with the worm transmission mechanism, the lower part of the plunger is of a cylindrical structure and is provided with a through hole penetrating through the cylindrical structure, the two ends of the through hole are respectively provided with a first opening and a second opening which are different in size, the first opening is of a circular structure, and the second opening is of a strip-shaped structure.

FIG. 4 is a schematic cross-sectional view of the plunger of FIG. 3; as can be seen more clearly from the figure, the first opening and the second opening are distributed on two sides of the plunger along a straight line direction, and one end of the second opening is offset towards the position of the first opening so as to form an opening with a larger width, the opening can simultaneously communicate with the two ports, and α in the figure represents a central angle corresponding to the second opening.

FIG. 5 is a schematic structural view of the worm drive system of FIG. 1; the worm transmission system comprises a motor, a worm, a primary gear, a secondary gear and a tertiary gear which are connected in sequence.

FIG. 6 is a schematic structural view of the present invention in which the driving device and the plunger are engaged with each other; in the figure, the three-level gear is connected with the plunger, and when the motor works, the plunger is finally driven by the three-level gear to rotate by taking the axis as a shaft through multi-level transmission, so that the interface connected with the through hole is adjusted.

FIG. 8 is a schematic structural view of the plunger of FIG. 7;

fig. 9 is a cross-sectional view of the plunger of fig. 8.

The utility model provides a reversing valve, as shown in figure 1, comprising a valve body 1 with a cavity arranged therein and a plunger 2 arranged in the cavity along the axial direction of the valve body 1; in order to meet the requirement of changing the direction of a fluid medium in a pipeline, at least three interfaces 3 communicated with a cavity are required to be uniformly distributed on the peripheral side of the valve body 1, and the interfaces 3 are all positioned on the same horizontal plane; the plunger 2 is provided with a through hole 21 penetrating both ends of the peripheral side, and when one end of the through hole 21 is connected with one port 3, the other end thereof is communicated with at least one port 3.

Because be provided with a plurality of interfaces 3 and the quantity more than or equal to three of interface 3 on this valve body 1, this means this valve body 1 can external at least three pipe, is located a plurality of interfaces 3 of plunger 2 UNICOM respectively of valve body 1 inside, consequently rotates after certain angle when plunger 2, and the pipe that links to each other with plunger 2 can change to the flow direction of the fluid medium in the regulation pipe that can be convenient.

Example 1:

as shown in fig. 1 to 6, the plunger 2 located in the middle of the direction valve is provided with only one through hole 21, and the two ends of the through hole 21 are the first opening 4 and the second opening 5. In this case, the fluid medium flows from the first opening 4 into the interior of the plunger 2 via one of the ports 3 and then flows from the second port 3 to at least two of the ports 3, in the course of which a change in direction of the fluid medium is achieved.

Specifically, the number of ports 3 of the valve body 1 is N (N is an integer of 3 or more), and when N is 3, the through hole 21 can communicate with only two ports 3. Because the ports 3 on the valve body 1 are uniformly arranged along the peripheral side of the valve body 1, the included angle between two adjacent ports 3 is 120 degrees, and the central angle corresponding to the through hole 21 on the plunger 2 is 120 degrees.

When N is 4, as shown in fig. 2, the through hole 21 can simultaneously communicate with two ports 3 or three ports 3. When the through hole 21 is communicated with the two ports 3 simultaneously, the through hole 21 is arranged through the axis of the plunger 2, and the first opening 4 and the second opening 5 are arranged along the length direction of the through hole; alternatively, the through-hole 21 is not the axis of the plunger 2, in which case the angle between the first opening 4 and the second opening 5 is 90 degrees.

It should be noted that the valve body 1 in fig. 1 to 2 is provided with four ports 3, which can be connected to four different conduits at most, and when the valve body 1 is connected to four conduits, the reversing valve is a four-way reversing valve; when the valve body 1 is communicated with three conduits, the reversing valve is a three-way reversing valve, and the interface 3 which is not connected with the conduits can be sealed by a sealing cover or other devices.

When the through-hole 21 communicates with three ports 3 simultaneously, the structure of the plunger 2 is as shown in fig. 3 to 4, and the through-hole 21 is disposed through the axis of the plunger 2, and one side of the second opening 5 is offset toward the position of the first opening 4. The central angle of the second opening 5 is an angle α in fig. 4, and the arrow at the lower right in the drawing indicates the extending direction of the through hole 21.

In an alternative embodiment, the second opening 5 has a central angle α, which is about 120 to 150 degrees. Specifically, the optimum angle of the included angle α is 130 degrees.

Similarly, when N is greater than 4, the through hole 21 may communicate with two or three ports 3 at the same time. It should be noted that the size of the central angle corresponding to the through hole 21 can be adjusted according to the actual situation.

When the through hole 21 is communicated with the two interfaces 3 at the same time, the central angle corresponding to the through hole 21 is beta, the beta is an integral multiple of 360 DEG/N, and the beta is more than 0 DEG and less than or equal to 180 DEG: for example, when N is six, the central angle β corresponding to the through hole 21 may be any one of 60 degrees, 120 degrees, and 180 degrees, that is, when the through hole 21 has any one of the above structures, the plunger 2 can achieve the function of simultaneously communicating the two ports 3.

When the plunger 2 is positioned at a certain fixed angle, the fluid flows into the through hole 21 through one port 3 and flows into the other port or the other two ports 3 through the second opening 5, and the fluid medium changes direction once in the process; when the outflow direction of the fluid needs to be adjusted or the fluid flows into the valve body 1 from other ports 3, the adjustment can be realized by driving the plunger 2 to rotate through the driving device.

Specifically, the rotation angle of the plunger 2 may be 20 to 160 degrees, and specifically, the optimal rotation angle in this embodiment is 105 degrees.

It should be noted that, when the through hole 21 communicates with two ports 3 at the same time, the first opening 4 and the second opening 5 at both ends of the through hole 21 have the same size.

In consideration of the sealing performance of the valve body, a sealing gasket is arranged between the plunger 2 and the interface 3.

As an optional embodiment, the directional control valve further comprises a plurality of flow conduits 6, wherein the flow conduits 6 are fixedly arranged outside the connection 3. The fluid medium flows through the valve body 1 via the flow guide tube 6.

As an alternative embodiment, the inner diameter of the draft tube 6 comprises at least two.

In an alternative embodiment, the reversing valve further comprises a driving device, which is connected with the plunger 2 and drives the plunger 2 to rotate along the axial direction, and the driving device is a worm transmission mechanism 7, as shown in fig. 5.

The worm transmission mechanism 7 includes a motor 71, a worm 72, a primary gear 73, a secondary gear 74, and a tertiary gear 75, which are connected in sequence, wherein the tertiary gear 75 is connected to the plunger 2, as shown in fig. 6.

When the motor 71 works, the three-stage gear 75 finally drives the plunger 2 to rotate around the axis through multi-stage transmission, so that the interface 3 connected with the through hole 21 is adjusted, and the direction change of the fluid medium is realized.

Example 2:

as shown in fig. 7 to 9, the present embodiment 2 is different from the embodiment 1 in that: in this case, the number of the through-holes 21 is two or more.

When the number of the through-holes 21 is 2, as shown in fig. 8 to 9, two identical through-holes 21 are located on the same horizontal plane of the plunger 2 and the two through-holes 21 are symmetrically arranged with respect to a vertical plane on which the axis of the plunger 2 is located. At this time, the valve body 1 is uniformly provided with four different ports 3 along the peripheral side.

As shown in fig. 7, when the plunger 2 is rotated to the position shown in fig. 7, the through-holes 21 on the left side are connected to the two ports 3 on the upper and lower sides of the angle, respectively, and the through-holes 21 on the right side are connected to the two ports 3 on the lower and lower sides of the angle, respectively. When fluid flows into the valve body 1 through the guide pipe 6, the fluid is reversed under the action of the through hole 21 and flows out through the other interfaces 3, so that the fluid is reversed.

In particular, the number of interfaces 3 may also be greater. When the device is used in actual production, the number of the interfaces 3 can be adjusted according to needs, and the number of the interfaces 3 is not taken as the limit of the scheme.

The utility model also provides an automobile heat management system, including the switching-over valve of above-mentioned arbitrary item.

In the automobile thermal management system, the reversing valve can be installed at the position related to battery cooling and air conditioning management, and the flow direction of fluid in a pipeline system is adjusted by adjusting the rotation of the plunger 2 in the reversing valve.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The reversing valve is characterized by comprising a valve body and a plunger, wherein a cavity is arranged in the valve body, and the plunger is arranged in the cavity along the axial direction of the valve body; wherein the content of the first and second substances,

the valve comprises a valve body, a cavity, N interfaces, a plunger and a plunger, wherein the valve body is provided with a plurality of through holes, the valve body is provided with a plurality of ports, the ports are uniformly distributed on the peripheral side of the valve body, the ports are communicated with the cavity, the plunger is provided with through holes capable of communicating different ports, when the plunger rotates along an axis, the ports correspondingly communicated with the through holes are changed, N is an integer, and N is not.

2. The reversing valve according to claim 1, wherein the number of the through-holes is one, the through-holes communicate with at least two of the ports and at least one of the ports does not communicate with the through-hole.

3. The reversing valve according to claim 2, wherein the through hole has a first opening and a second opening at two ends thereof, wherein the second opening has a larger width than the first opening; when the first opening is communicated with one interface, the second opening is simultaneously communicated with at least two interfaces.

4. The reversing valve of claim 3, wherein the second opening corresponds to a central angle α of 120 ° α or more and 150 ° or less.

5. The reversing valve according to claim 3, wherein the number of ports is four, the through-hole is provided through an axis of the plunger and one side of the second opening is offset toward a position where the first opening is located.

6. The reversing valve according to claim 2, wherein the two ends of the through hole are respectively provided with a first opening and a second opening which are the same in size, and the first opening and the second opening are both communicated with one interface.

7. The reversing valve according to claim 1, wherein the number of the through holes is not less than two, and any one of the through holes communicates with different ports.

8. The reversing valve according to any of claims 1-7, further comprising a plurality of flow conduits, wherein said flow conduits are fixedly disposed outside said interface.

9. The reversing valve of claim 1, further comprising a drive device coupled to the plunger and driving the plunger to rotate in the axial direction.

10. A thermal management system for a vehicle comprising a diverter valve as defined in any one of claims 1 to 9.