CN114688308A

CN114688308A - Fluid control device

Info

Publication number: CN114688308A
Application number: CN202011625561.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-07-01

Abstract

The invention discloses a fluid control device, which comprises a valve body component and a valve core component, wherein the fluid control device is provided with a valve cavity, and most of the valve core component is positioned in the valve cavity; the valve body component is provided with a body part and a protruding part, the protruding part protrudes out of the peripheral wall of the body part, the fluid control device is provided with a first flow passage, the first flow passage is positioned in the body part, the protruding part is provided with more than two second flow passages, and the second flow passages can be communicated with the first flow passage; the fluid control device is provided with a flow passage connecting part, the protruding part is provided with more than two lugs, each lug is provided with the second flow passage, a communication port of the second flow passage of each lug faces the flow passage connecting part, the flow passage connecting part is provided with more than two third flow passages, the second flow passages are communicated with the third flow passages, and the flow passage connecting part and the valve body part are arranged in a sealing mode.

Description

Fluid control device

Technical Field

The invention belongs to the field of fluid control, and particularly relates to a fluid control device.

Background

Since a fluid flow path is switched in a vehicle thermal management system, a plurality of flow path switching valves are used for flow path control in the vehicle thermal management system. The flow channel switching valve is provided with a valve body and a valve core, the valve core is accommodated in the valve body, the general flow channel switching valve is provided with a structure similar to that shown in figure 1, two or more connecting pipes 2 protrude from the periphery of the valve body 1, an external pipeline is connected with the connecting pipes, and the valve core moves in the valve body to change the communication mode of a flow channel. When function was many in the vehicle, pipeline connection would be very complicated in the vehicle, sometimes has 10 external interface even, can realize through a plurality of runner diverter valves of stack under the many situations, just so needs a plurality of runner diverter valves, and a plurality of runner diverter valves are connected and will be used a lot of pipelines, and the piping arrangement can be complicated and complicated, connects the mistake easily. If a flow channel switching device is used, the whole structure of the valve body is made to be larger, and the occupied space is large.

Disclosure of Invention

The invention aims to provide a fluid control device which is convenient for arranging a flow passage and has a compact integral structure.

In order to realize the purpose, the following technical scheme is adopted:

a fluid control device comprising a valve body component, a spool component, the fluid control device having a valve cavity, the spool component being located mostly in the valve cavity;

the valve body component is provided with a body part and a protruding part, the protruding part protrudes out of the peripheral wall of the body part, the fluid control device is provided with a first flow passage, the first flow passage is positioned in the body part, the protruding part is provided with more than two second flow passages, and the second flow passages can be communicated with the first flow passage;

the fluid control device is provided with a flow passage connecting part, the protruding part is provided with more than two lugs, each lug is provided with the second flow passage, a communication port of the second flow passage of each lug faces the flow passage connecting part, the flow passage connecting part is provided with more than two third flow passages, the second flow passages are communicated with the third flow passages, and the flow passage connecting part and the valve body part are arranged in a sealing mode.

The technical scheme includes that the valve body component comprises a protruding portion and a flow passage connecting portion, more than two protruding lugs are arranged on the protruding portion of the valve body component, each protruding lug is provided with a second flow passage, a communication port of each second flow passage of each protruding lug faces the flow passage connecting portion, the second flow passages are communicated with third flow passages of the flow passage connecting portions, and the flow passage connecting portions and the valve body component are arranged in a sealing mode. Therefore, the external pipeline is communicated with each third flow channel of the flow channel connecting part, the pipeline arrangement is convenient, and the whole structure is compact.

Drawings

FIG. 1 is a schematic structural view of a conventional embodiment;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

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

FIG. 4 is a schematic side view of the local fluid control assembly of FIG. 2;

FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a schematic perspective cross-sectional view of the alternate view of FIG. 5;

FIG. 7 is a side view of the valve body components of FIG. 2 from the left, and a schematic cross-sectional view along line C-C in the left;

FIG. 8 is a schematic structural view of the runner joint in FIG. 2;

FIG. 9 is a schematic structural diagram of another embodiment of the present invention;

FIG. 10 is a side view of a portion of the structure of FIG. 9;

FIG. 11 is a schematic cross-sectional view taken along line D-D of FIG. 10;

FIG. 12 is a cross-sectional view taken along line E-E of FIG. 10;

FIG. 13 is a bottom schematic view of the valve body components shown in FIG. 9;

FIG. 14 is a perspective view of the flow path connecting part shown in FIG. 9;

FIG. 15 is a partially exploded perspective view of another embodiment of the present invention;

FIG. 16 is a schematic view of the structure of FIG. 15 from another perspective;

FIG. 17 is a schematic view of another embodiment of a flow conduit connection;

FIG. 18 is a schematic structural view of another embodiment of the present invention;

FIG. 19 is a side view of the valve body component of FIG. 18 from the left and a schematic sectional view taken along line G-G in the left;

FIG. 20 is a schematic view of yet another embodiment of a flow conduit connection;

FIG. 21 is a schematic structural view of another embodiment of the present invention;

FIG. 22 is a schematic structural view of yet another embodiment of the present invention;

FIG. 23 is a schematic view of the structure of FIG. 22 from another perspective;

FIG. 24 is a side view of the fluid control assembly of FIG. 23, with the bottom view being a schematic cross-sectional view taken along line H-H of the top view;

FIG. 25 is a schematic view of the structure of the runner connection in FIG. 24;

FIG. 26 is a schematic structural view of another embodiment of the present invention;

FIG. 27 is a schematic view of the structure of FIG. 26 from another perspective;

FIG. 28 is a top view of the fluid control assembly of FIG. 27, with the bottom view being a cross-sectional view taken along line I-I of the top view;

FIG. 29 is a schematic structural view of the flow passage connecting part of FIG. 27;

FIG. 30 is a schematic structural view of another embodiment of the present invention;

FIG. 31 is a schematic structural view of the valve body component of FIG. 30;

FIG. 32 is a schematic view of the structure of the flow channel connection of FIG. 31;

FIG. 33 is a schematic structural view of another embodiment of the present invention;

fig. 34 is an exploded plan view of fig. 33.

Detailed Description

Hereinafter, each specific embodiment to which the structure of the present invention is applied will be described in detail as an exemplary embodiment.

Referring to fig. 2-8, as an embodiment, a schematic diagram of a fluid control device 10 is shown. The fluid control device 10 may be used for flow path switching. The fluid control device 10 includes a fluid control assembly 11 and a flow passage connection portion 16, the fluid control assembly 11 mainly includes a valve core part 12, a valve body part 15 and a control part 14, the fluid control assembly 11 has a valve cavity, and most of the valve core part 12 is located in the valve cavity. The control part 14 can control the valve core part 12 to move inside the valve body part 15, and the flow passage of the fluid control device can be communicated or switched through the movement of the valve core part 12.

The fluid control device 10 may have, for example, 2 ports, and the flow passages between the 2 ports are communicated or not communicated through the movement of the spool member 12; the fluid control device has 3 ports, for example, and two ports can be selectively communicated through the movement of the valve core component 12; the fluid control device may further have 4 ports or more ports, for example, and the flow channels between different ports may be communicated by the movement of the valve core member 12, so as to realize the function of switching the flow channels to be communicated.

The valve body member 15 has a body portion 151 and a projecting portion 152, the projecting portion 152 projects from a peripheral wall 155 of the body portion 151, the fluid control device has a first flow passage 13, the first flow passage 13 is located inside the body portion 151, the projecting portion 152 has two or more second flow passages 156, and the second flow passages 156 can communicate with the first flow passage 13; the protrusion 152 has two or more lugs 157, each of the lugs 157 has the second flow passage 156, the communication port 1561 of the second flow passage of each of the lugs 157 faces the flow passage connecting portion 16, the flow passage connecting portion 16 has two or more third flow passages 161, the second flow passage 156 and the third flow passages 161 communicate, and the flow passage connecting portion 16 and the valve body member 15 are sealingly arranged.

Thus, the communication port 1561 of the second flow channel of the valve body 15 can communicate with the third flow channel 161 of the flow channel connection portion 16, and the fluid inlet and outlet of the fluid control device are all disposed at the flow channel connection portion 16, so as to realize flow channel diversion and flow distribution through the flow channel connection portion 16, and connect the external pipeline or channel with the flow channel connection portion 16, thereby facilitating the arrangement of the interface pipeline and having a compact overall structure.

The flow path connecting portion 16 is integrally injection-molded, the body portion 151 and the protrusion portion 152 are integrally injection-molded, and the flow path connecting portion 16 and the protrusion portion 152 are welded and fixed. The flow channel connection 16 may be made of plastic material, and the valve body member 15 may also be made of plastic material, and the flow channel connection 16 and the projection 152 may be welded together by plastic welding. The flow passage connecting part 16 and the valve body part 15 are integrally formed by injection molding, and the flow passage connecting part 16 and the valve body part 15 are fixed by welding, so that the valve is easy to process.

With the axial direction of the body portion 151 being the axial direction H of the valve body member 15, the projecting portion 152 projects from the body portion 151 in the radial direction D of the valve body member 15, each of the lugs 157 has a distal end portion 1571, the distal end portion 1571 is opposed to the flow passage connecting portion 16, the distal end portion 1571 is provided with a communication port 1561 of the second flow passage, the distal end portion 1571 has a bottom end face 1575, and at least two of the bottom end faces 1575 are located at the same cross section in a radial cross section parallel to the valve body member 15.

At least two of the bottom face 1575 are located in the same cross section, and are convenient to be sealed and fixed with the flow channel connecting part 16, the communication ports 1561 of at least two second flow channels can be sealed and arranged by sealing and fixing one cross section, sealing operation is facilitated, structure optimization is facilitated, and assembly is facilitated.

In this embodiment, with reference to fig. 5, the lug 152 has 5 lugs 157, each lug 157 having a terminal end 1571, each terminal end 1571 having a bottom end face 1575, the 5 bottom end faces 1575 being in the same cross section in a radial cross section parallel to the valve body member 15. The fluid shunt part and the 5 bottom end faces 1575 in the same section are welded and fixed at the same time, so that the assembly process is simple and the production cost is reduced.

In this embodiment, 5 lugs 157 are spaced apart, and their ends 1571 are also spaced apart. In some embodiments, however, the lugs 157 may be disposed adjacent to one another.

Herein, the term "project from the body portion 151 in the radial direction of the valve body member 15" means that the projecting portion 152 has a portion projecting from the body portion 151 in the radial direction of the valve body member 15, and is not limited to that the projecting portion 152 projects from the body portion 151 in the same radial direction as a whole, and the radial direction projection here is a portion having a projection in the radial direction with respect to the peripheral wall 155 of the body portion 151.

The protrusion 152 has a connecting portion 158, and the connecting portion 158 is connected to an outer wall 1572 of the lug 157. The connection portion 158 may increase the mechanical strength of the lug 157, and contribute to the stability of the assembly of the valve body member 15 and the flow path connection portion 16.

The connecting portion 158 has a bottom end face 1575, the bottom end face 15811575 of the connecting portion may be in the same cross section with the bottom end face 1575 of the lug 157, and the connecting portion 158 may be welded to the flow channel connecting portion 16, so that the connecting portion 158 is welded to the flow channel connecting portion 16 at the same time as the bottom end face 1575 of the lug 157 is welded to the flow channel connecting portion 16, which helps to improve the firmness of the welding between the lug 157 and the flow channel connecting portion 16.

In a longitudinal cross section passing through the axis of the body portion 151, the lug 157 has a root portion 1573 and an outer edge portion 1574, and the communication port 1561 of the second flow passage is located between the root portion 1573 and the outer edge portion 1574;

in a radial cross-section of the body portion 151, a distance between at least a portion of the outer rim portion 1574 and an axis of the body portion 151 is greater than a distance between the root portion 1573 and the axis of the body portion 151.

In the present embodiment, the root portion 1573 extends to the peripheral wall 155 of the valve body member 15, the root portion 1573 extends in the axial direction of the main body portion 151, and a distal end portion 1571 of the root portion 1573 forms a part of the wall portion of the communication port 1561 of the second flow passage.

Since the distance between at least a portion of the outer edge portion 1574 and the axis of the body portion 151 is greater than the distance between the root portion 1573 and the axis of the body portion 151, the lugs 157 can be easily connected to the flow channel connection portion 16, and when necessary, the bottom end faces 1575 of the lugs 157 can be located on the same plane, which facilitates the design of the structure of the flow channel connection portion 16. When customer demands are different, the customer demands can be met by matching one fluid control assembly 11 with the flow passage connecting parts 16 with different interface forms, so that standardized production of the fluid control assembly 11 is realized, and the cost is reduced.

In the present embodiment, the valve body member 15 has a cylindrical portion structure, the valve body member 15 has a first end 153 and a second end 154 along the axial direction of the valve body member 15, the control member 14 is located on the first end 153 side, the lug 157 protrudes from the second end 154, and the flow passage connection portion 16 and the second end 154 of the valve body member 15 are assembled, so that the structure is simple, the connection between the lug 157 and the flow passage connection portion 16 is facilitated, and the connection structure is more compact.

In the present embodiment, the communication port 1618 of each of the third flow passages 161 faces the valve body member 15, the communication port 1618 of each of the third flow passages 161 and the communication port 1561 of each of the second flow passages are provided in correspondence, the flow passage connecting portion 16 has the same number of third flow passages 161 as the number of the second flow passages 156, and the second flow passages 156 and the third flow passages 161 are in one-to-one correspondence. The second flow channel 156 of the valve body component 15 can be switched to the flow channel connecting part 16 by welding and fixing the flow channel connecting part 16 and the valve body component 15, and is communicated with an external pipeline or channel through the flow channel connecting part 16, so that the structural connection is convenient, and the installation and the arrangement are also convenient.

Referring to fig. 8, the flow path connection portion 16 includes a body portion 167 and an engagement portion 168, the engagement portion 168 integrally protrudes from the body portion 167, the engagement portion 168 includes communication ports 1618 of the third flow path 161, the body portion 167 is provided with connection hole passages 1671 corresponding to the number of the communication ports 1618 of the third flow path 161, and the flow path connection portion 16 may be formed by integral injection molding. The fitting portion 168 has a welding portion 1681, the welding portion 1681 surrounds the communication opening 1618 of the third flow passage 161, and the welding portion 1681 of each fitting portion 168 may be independently provided.

In another embodiment, the body 167 may have a welding portion 1681, and the welding portion 1681 of the body 167 may be located between the adjacent engagement portions 168 for improving welding firmness.

The valve core component 12 can have various structures, such as spherical, cylindrical, irregular and the like; the valve core member 12 having the structure in which the inner portion is opened with the duct and the side portion is opened with the communicating groove, etc., is not particularly limited in this specification, and various valve core members 12 capable of having the functions in this specification are regarded as being covered in this specification.

The spool part 12 has a bore or recess 121 in which at least part of the first flow passage 13 is located, the spool part 12 being movable relative to the valve body part 15, the bore or recess being communicable with the second flow passage 156 in different ones of the lugs 157 in different states.

Referring to fig. 9-14, as an embodiment, a schematic diagram of a fluid control device 20 is shown.

The fluid control device 20 includes a fluid control assembly 11 and a flow passage connection portion 16, the fluid control assembly 11 mainly includes a valve core part 12, a valve body part 15 and a control part 14, the fluid control assembly 11 has a valve cavity, and most of the valve core part 12 is located in the valve cavity. Most of the structures of the valve body part 15, the valve core part 12 and the control part 14 can be referred to the above embodiments.

The projecting portion 152 projects from the body portion 151 in a radial direction of the valve body member 15 with an axial direction of the body portion 151 being an axial direction of the valve body member 15, each of the lugs 157 has a distal end portion 1571, the distal end portion 1571 is opposed to the flow passage connecting portion 16, the distal end portion 1571 is provided with a communication port 1561 of the second flow passage, the distal end portion 1571 has a bottom end face 1575, and at least two of the bottom end faces 1575 are located at the same cross section in a radial cross section parallel to the valve body member 15.

At least two of the bottom end face 1575 are located on the same cross section, the bottom end face 1575 and the flow channel connecting portion 16 are conveniently fixed in a sealing mode, the communication openings 1561 of the at least two second flow channels can be arranged in a sealing mode through fixing one cross section in a sealing mode, sealing operation is facilitated, structure optimization is facilitated, and assembly is facilitated.

Referring to fig. 11 and 12, the lugs 157 may be disposed adjacent to each other, and for convenience of description, two adjacent lugs 157 will be defined as a first lug 157A and a second lug 157B to distinguish the two lugs 157, where the two lugs 157 are divided by a wall between the two lugs 157, the wall has two walls, namely a wall a and a wall B, the first lug 157A includes the wall a, the second lug 157B includes the wall B, and a distal end 1571 of the first lug 157A and a distal end 1571 of the second lug 157B are also divided by the wall a and the wall B.

The flow path connecting portion 16 is formed by injection molding, the communication port 1618 of each third flow path 161 faces the valve body member 15, the communication port 1618 of each third flow path 161 and the communication port 1561 of each second flow path are correspondingly arranged, the flow path connecting portion 16 has the same number of third flow paths 161 as the number of the second flow paths 156, and the second flow paths 156 and the third flow paths 161 are in one-to-one correspondence.

In the present embodiment, the communication port 1561 defining the second flow passage between the first flow passage 13 and the first lug 157A is the first communication port 1562, the communication port 1561 defining the second flow passage between the first flow passage 13 and the second lug 157A is the second communication port 1563, and the first communication port 1562 and the second communication port 1563 do not fall on the same radial cross section of the valve body member 15. As such, the second flow passage 156 of the first lug 157A and the second flow passage 156 of the second lug 157B may have different communication flow paths.

In the present embodiment, the fluid control assembly 11 has 10 bosses 157, the flow passage connection portion 16 has 10 third flow passages 161, and the second flow passage 156 of each boss 157 communicates with the corresponding third flow passage 161. Wherein some of the lugs 157 are disposed adjacently and some of the lugs 157 are disposed at intervals. Of course, in other embodiments, the lugs 157 may be all adjacently disposed, all spaced apart, or the number of adjacent lugs 157 may be different from that of the embodiment.

The flow path connecting portion 16 includes a first section 163 and a second section 164, the first section 163 integrally extends from the main body 151, the first section 163 has a first groove 1631, and a wall portion corresponding to the first groove 1631 is welded and fixed to the second section 164. The design of the runner connection 16 to include the first section 163 and the second section 164 facilitates the runner process of the runner connection 16 and facilitates injection molding.

In the present embodiment, the second section 164 has a second groove 1641, the second groove 1641 is provided corresponding to the first groove 1631, and a wall portion corresponding to the second groove 1641 and a wall portion corresponding to the first groove 1631 are welded and fixed.

In other embodiments, the first section 163 may also extend integrally from the lug 157.

In other embodiments, the second section 164 may not have the second groove 1641, the second section 164 may be a flat plate structure, the second section 164 seals and closes the first groove 1631, and the second section 164 and the corresponding wall of the first groove 1631 are welded and fixed.

In another embodiment, the first section 163 may not have the first groove 1631, the second section 164 may have the second groove 1641, the first section 163 may seal and close the second groove 1641, and the walls corresponding to the first section 163 and the second groove 1641 may be welded and fixed.

The valve body part 15 has a cylindrical part structure, the valve body part 15 has a first end 153 and a second end 154 along the axial direction of the valve body part 15, the fluid control assembly 11 has a control part 14, the control part 14 is positioned at the first end 153, the lug 157 protrudes from the second end 154, the first part 163 is positioned at the second end 154, and the second part 164 and the first part 163 are assembled at the second end 154 of the valve body part 15, so that the structure is simple, the connection of the lug 157 and the flow passage connecting part 16 is facilitated, and the connection structure is more compact.

It should be noted that the shapes of the respective flow paths of the flow path connecting portion 16 and the like may be designed in various forms, and this embodiment is merely an example.

Referring to fig. 15-16, a schematic diagram illustrating the construction of one fluid control device 30 is shown. The fluid control device 30 includes a fluid control assembly 11 and a flow passage connection portion 16, and the fluid control assembly 11 mainly includes a spool member 12, a valve body member 15, and a control member 14. Most of the structures of the valve body part 15, the valve core part 12 and the control part 14 can refer to the fluid control device 10.

The flow path connecting portion 16 is integrally injection-molded, the body portion 151 and the protrusion portion 152 are integrally injection-molded, and the flow path connecting portion 16 and the protrusion portion 152 are welded and fixed.

In a longitudinal cross section passing through the axis of the body portion 151, the lug 157 has a root portion 1573 and an outer edge portion 1574, and the communication port 1561 of the second flow passage is located between the root portion 1573 and the outer edge portion 1574; that is, the root portion 1573 and the outer edge portion 1574 are portions of the wall portion corresponding to the communication port 1561 of the second flow passage.

In a radial cross-section of the body portion 151, a distance L2 between at least a portion of the outer rim portion 1574 and the axis Z of the body portion 151 is greater than a distance L1 between the root portion 1573 and the axis Z of the body portion 151.

The root portion 1573 extends from the peripheral wall 155 of the valve body member 15, the root portion 1573 extends in the axial direction of the main body 151, and a distal end portion 1571 of the root portion 1573 forms a part of a wall portion of the communication port 1561 of the second flow passage.

In the present embodiment, the communication port 1618 of each of the third flow passages 161 faces the valve body member 15, at least one third flow passage 161 of the third flow passages 161 of the flow passage connection portion 16 has a third flow passage first portion 1611 and a third flow passage second portion 1612, the third flow passage first portion 1611 and the third flow passage second portion 1612 are provided separately at the flow passage connection portion 16, and the third flow passage first portion 1611 and the third flow passage second portion 1612 communicate with the same second flow passage 156.

In this embodiment, the fluid control assembly 11 has 5 lugs 157, each lug 157 having a second flow passage 156. The flow channel connection part 16 is provided with 5 flow guiding parts 162, each flow guiding part 162 and each lug 157 are correspondingly arranged, each flow guiding part 162 is provided with a third flow channel first part 1611 and a third flow channel second part 1612, and the third flow channel first part 1611 and the third flow channel second part 1612 are independently arranged, so that the second flow channel 156 of each lug 157 can be formed into two sub-flow channels through the switching of the flow channel connection part 16, and thus, under the condition that the fluid control assembly 11 is provided with 5 flow channels, 10 flow channels are formed through the switching of the flow channel connection part 16, and the flow channel connection part can be applied to a system which needs 10 interfaces for switching the flow channels in a vehicle thermal management system.

In another embodiment, referring to fig. 17, fig. 17 illustrates a schematic structural view of a flow path connecting portion 16. The drains 162 of the flow path connection 16 also need not each have a third flow path first portion 1611 and a third flow path second portion 1612, two, three, or four of which are possible, and thus the fluid control assembly 11 of this embodiment can be used for 5, 6, 7, 8, 9, 10 interfaces.

In other embodiments, if there are applications with less than 5 ports, the second flow channels 156 of the two lugs 157 of the valve body member 15 may be mixed on the flow channel connection portion 16, that is, the flow channel connection portion 16 may realize the flow channel switching requirement of 4 ports. The above number of interfaces is only exemplary, and the number of interfaces can be adjusted freely according to actual situations.

In another embodiment, referring to fig. 20, fig. 20 illustrates another structure of the flow channel connection part 16.

A communication port 1618 of the third flow path 161 of the flow path connecting unit 16 and a communication port 1561 of the second flow path are provided in correspondence, the third flow path 161 has a main portion 1613, a first branch portion 1614, a second branch portion 1615, and a third branch portion 1617, a flow port of the third flow path 161 is located in the main portion 1613, and the first branch portion 1614, the second branch portion 1615, and the third branch portion 1617 are individually connected to the main portion 1613.

Thus, fluid from one of the second flow passages 156 of the lug 157 that enters the third flow passage 161 is diverted from the main portion 1613 to the first branch portion 1614, the second branch portion 1615 and the third branch portion 1617, which can be used for different system requirements.

Referring to fig. 18 and 19, a schematic diagram of a fluid control device 40 is shown, as an embodiment.

FIG. 21 illustrates a fluid control device that is generally similar to the fluid control device shown in FIG. 17. In the present embodiment, the valve body member 15 has a cylindrical portion structure, the valve body member 15 has a first end portion 153 and a second end portion 154 in the axial direction of the valve body member 15, the fluid control assembly 11 has a control member 14, the control member 14 is located on the first end portion 153 side, and the lug 157 projects between the first end portion 153 and the second end portion 154.

Referring to fig. 21, fig. 21 shows a structural view of the fluid control apparatus 50, where the axial direction of the body part 151 is the axial direction of the valve body part 15, the lugs 157 protrude from the body part 151 in the radial direction of the valve body part 15, each of the lugs 157 has a distal end part 1571, the distal end part 1571 is opposite to the flow passage connecting part 16, the distal end part 1571 is provided with a communication port 1561 of the second flow passage, the distal end part 1571 has a bottom end face 1575, and at least two of the bottom end faces 1575 are located on the same cross section at an angle of 0 to 90 ° to the axial direction of the valve body part 15.

In another embodiment, the root portion 1573 extends along the peripheral wall 155 of the valve body member 15, the root portion 1573 extends along the axial direction of the main body portion 151, and a distal end portion 1571 of the root portion 1573 forms a part of a wall portion of the communication port 1561 of the second flow passage.

The root portion 1573 extends along the peripheral wall 155 of the valve body 15, and the root portion 1573 extends along the axis of the body 151 at an angle a (0,90 degrees) to the axis of the body 151.

Herein, when the lug 157 is of a non-linear structure, in an axial direction of the valve body member 15 passing through the axis, a connecting position of the root portion 1573 and the peripheral wall 155 of the valve body member 15 is defined as a first point, a farthest end of the root portion 1573 from the peripheral wall 155 of the valve body member 15 is defined as a second point, and a line connecting the first point and the second point defines an included angle a and an axis of the body portion 151 is defined as an angle formed by a line connecting the first point and the second point with the axis of the body portion 151.

Referring to fig. 22-25, one configuration of a fluid control device 60 is illustrated. The fluid control device 60 includes a fluid control assembly 11 and a flow passage connection portion 16, and the fluid control assembly 11 mainly includes a spool member 12, a valve body member 15, and a control member 14. Most of the structure of the fluid control device 60 may be referenced to the fluid control device 10.

The valve body member 15 has a cylindrical portion structure, the valve body member 15 has a first end portion 153 and a second end portion 154 in the axial direction of the valve body member 15, the fluid control assembly 11 has a control member 14, the control member 14 is located on the first end portion 153 side, and the lug 157 projects between the first end portion 153 and the second end portion 154.

The communication port 1561 of the second flow path is located in a radial cross-section between the first end 153 and the second end 154.

In a longitudinal cross-section through the axis of the body portion 151, the lug 157 has a root portion 1573 and an outer rim portion 1574, the second flow passage flow port 1561 being located between the root portion 1573 and the outer rim portion 1574;

The flow channel connection 16 has a recess 165, and a part of the valve body part 15 is located in the recess 165. In this manner, the flow passage connection portion 16 can be projected on the peripheral side of the valve body member 15, so that the entire height of the fluid control device is low. The communication port 1561 of the second flow passage through the valve body member 15 can communicate with the third flow passage 161 of the flow passage connecting portion 16 and with an external pipe or passage through the flow passage connecting portion 16, facilitating the flow passage arrangement and being compact in the entire structure.

The flow path connecting portion 16 has a flow guide portion 162, the flow guide portion 162 corresponds to the lug 157, the flow guide portion 162 has a groove 1621 and a top end surface 1622, the groove 1621 communicates with the communication port 1561 of the second flow path, the top end surface 1622 and a bottom end surface 1575 are welded and fixed, and the welding position of the top end surface 1622 and the bottom end surface 1575 is located at the radial cross-sectional position of the body portion 151.

In fig. 24, the structure of the valve body member 12 is schematically illustrated, and the valve body member 15 is rotatable in the valve body member 12 to change the communication relationship between the first flow passages 13 and the respective second flow passages 156, thereby achieving the purpose of switching the flow passages.

In the present embodiment, the valve body member 15 protrudes with 4 lugs 157, the flow channel connection portions 16 are formed by integral injection molding, the communication port 1618 of each third flow channel 161 faces the valve body member 15, the communication port 1618 of each third flow channel 161 and the communication port 1561 of each second flow channel are correspondingly arranged, the flow channel connection portions 16 have the same number of third flow channels 161 as the number of second flow channels 156, and the second flow channels 156 and the third flow channels 161 are in one-to-one correspondence. Thus, the fluid control device can realize the flow channel switching of 4 interface channels.

In another embodiment, the fluid control device may also implement flow channel switching of another number of multiple interfaces, for example, as with reference to fig. 26 to fig. 29, fig. 26 illustrates a structure of the fluid control device 70, the fluid control device 70 is substantially similar to the fluid control device 60, in this embodiment, the valve body member 15 protrudes with 5 lugs 157, a communication port 1618 of each third flow channel 161 is arranged corresponding to a communication port 1561 of each second flow channel, the flow channel connecting portion 16 has the same number of third flow channels 161 as the number of the second flow channels 156, and each second flow channel 156 corresponds to each third flow channel 161 one by one. Thus, the fluid control device can realize the flow channel switching of 5 interface channels.

The communication port 1561 of the second flow passage is located in a radial cross section between the first end 153 and the second end 154.

The flow path connection 16 has a gap 165, and a part of the valve body member 15 is located in the gap 165. In this manner, the flow passage connection portion 16 can be projected on the peripheral side of the valve body member 15, so that the entire height of the fluid control device is low. The communication port 1561 of the second flow passage through the valve body member 15 can communicate with the third flow passage 161 of the flow passage connecting portion 16 and with an external pipe or passage through the flow passage connecting portion 16, facilitating the flow passage arrangement and being compact in the entire structure.

Referring to fig. 30 to 32, illustrating the structure of the fluid control apparatus 80, the fluid control apparatus 80 includes a fluid control assembly 11 and a flow passage connection portion 16, and the fluid control assembly 11 mainly includes a spool member 12, a valve body member 15, and a control member 14. Most of the structure of the fluid control device 80 can be referred to the fluid control device 60, and some similar features will not be repeated.

The valve body member 15 has a body portion 151 and a projecting portion 152, the projecting portion 152 projects from a peripheral wall 155 of the body portion 151, the fluid control device 80 has a first flow passage 13, the first flow passage 13 is located inside the body portion 151, the projecting portion 152 has two or more second flow passages 156, and the second flow passages 156 can communicate with the first flow passage 13; the protrusion 152 has two or more lugs 157, each of the lugs 157 has the second flow passage 156, the communication port 1561 of the second flow passage of each of the lugs 157 faces the flow passage connecting portion 16, the flow passage connecting portion 16 has two or more third flow passages 161, the second flow passage 156 and the third flow passages 161 communicate, and the flow passage connecting portion 16 and the valve body member 15 are sealingly arranged.

The protrusion 152 has 4 lugs 157, and each lug 157 has a communication port 1561 of the second flow passage. The flow channel connection 16 has a flow guide 162, and the flow guide 162 and the lug 157 are cooperatively arranged. The flow guide 162 has a groove 1621 and a top end surface 1622, the groove 1621 communicates with a communication port 1561 of the second flow passage, the top end surface 1622 and a bottom end surface 1575 are welded and fixed, and the welding position of the top end surface 1622 and the bottom end surface 1575 is located at a radial cross-sectional position of the body portion 151.

A communication port 1618 of the third flow path 161 of the flow path connecting unit 16 and a communication port 1561 of the second flow path are provided in correspondence, the third flow path 161 has a main portion 1613, a first branch portion 1614, a second branch portion 1615, and a third branch portion 1617, a flow port of the third flow path 161 is located in the main portion 1613, and the first branch portion 1614, the second branch portion 1615, and the third branch portion 1617 are individually connected to the main portion 1613. Thus, a second flow channel 156 can be switched by the flow channel connection 16 to form three interfaces, which can be applied to different application requirements. Facilitating standardization of the fluid control assembly 11.

As another mode, the lugs 157 protrude from the body portion 151 in the radial direction of the valve body member 15 with the axial direction of the body portion 151 being the axial direction of the valve body member 15, each lug 157 has a distal end portion 1571, the distal end portion 1571 is opposed to the flow passage connecting portion 16, the distal end portion 1571 is provided with the communication port 1561 of the second flow passage, the distal end portion 1571 has a bottom end face 1575, and at least two of the bottom end faces 1575 are located in the same cross section in a cross section parallel to the axial direction of the valve body member 15.

Referring to fig. 33-34, fig. 33-34 illustrate the structure of the fluid control device 90. The fluid control device 90 is generally similar in construction to the fluid control device 10. The fluid control device 90 includes a fluid control assembly 11 and a flow passage connection portion 16, the fluid control assembly 11 mainly includes a valve core member 12, a valve body member 15 and a control member 14, the fluid control assembly 11 has a valve cavity, and most of the valve core member 12 is located in the valve cavity. Most of the structures of the valve body part 15, the valve core part 12 and the control part 14 can be referred to the above embodiments.

The flow path connection portion 16 includes a first section 163 and a second section 164, the first section 163 and the second section 164 are welded and fixed, the first section 163 includes a communication port 1618 of a third flow path 161, a flow path port of the third flow path 161 and a communication port 1561 of the second flow path are provided in correspondence, and the first section 163 and the valve body member 15 are welded and fixed. The valve body part 15, the first sub-part 163 and the second sub-part 164 are all formed by injection molding, and the runner connecting part 16 is designed by the structures of the first sub-part 163 and the second sub-part 164, so that the internal structures of the first sub-part 163 and the second sub-part 164 are conveniently formed, and the processing is simplified. And when the runner connecting part 16 has a very complicated structure, the runner can be formed in a subsection processing mode and then the runner is sealed in a welding mode, so that the runner is convenient to process and high in applicability.

It should be noted that: although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that various combinations, modifications and equivalents of the present invention can be made by those skilled in the art, and all technical solutions and modifications thereof without departing from the spirit and scope of the present invention are encompassed by the claims of the present invention.

Claims

1. A fluid control device comprising a valve body component, a spool component, the fluid control device having a valve cavity, the spool component being located mostly in the valve cavity;

the valve body component is characterized in that the valve body component is provided with a body part and a protruding part, the protruding part protrudes out of the peripheral wall of the body part, the fluid control device is provided with a first flow passage, the first flow passage is positioned in the body part, the protruding part is provided with more than two second flow passages, and the second flow passages can be communicated with the first flow passage;

2. The fluid control device according to claim 1, wherein the flow path connection portion is integrally injection-molded, the body portion and the projecting portion are integrally injection-molded, and the flow path connection portion and the projecting portion are welded and fixed.

3. The fluid control device of claim 1, wherein the flow connection includes a first section and a second section, the first section integrally extending from the lug, the first section having a first groove, a wall portion of the first groove corresponding to the second section being welded to the second section.

4. The fluid control device according to claim 1, wherein the flow passage connecting portion includes a first branch portion and a second branch portion, the first branch portion and the second branch portion are welded and fixed, the first branch portion has a communication port of a third flow passage, a communication port of the third flow passage and a communication port of the second flow passage are provided in correspondence, and the first branch portion and the valve body member are welded and fixed.

5. The fluid control apparatus according to any one of claims 1 to 4, wherein the projecting portion projects from the body portion in a radial direction of the valve body member with an axial direction of the body portion being an axial direction of the valve body member, each of the lugs has a distal end portion that is opposed to the flow passage connecting portion, the distal end portion is provided with the communication port of the second flow passage, the distal end portion has a bottom end face, and at least two of the bottom end faces are located in a same cross section in a radial cross section parallel to the valve body member.

6. The fluid control device according to claim 5, wherein the second flow passage of the lug extends in an axial direction of the valve body member.

7. The fluid control device according to any one of claims 1 to 4, characterized in that the axial direction of the body portion is an axial direction of the valve body member, the lugs project from the body portion in a radial direction of the valve body member, each of the lugs has a tip end portion that opposes the flow passage connecting portion, the tip end portion is provided with the communication port of the second flow passage, the tip end portion has a bottom end face, and at least two of the bottom end faces are located on the same cross section in a cross section parallel to the axial direction of the valve body member.

8. The fluid control device defined in claim 7, wherein the second flow passage of the lug extends in a radial direction of the valve body member.

9. The fluid control device according to any one of claims 1 to 4, characterized in that the lug projects from the body portion in a radial direction of the valve body member with an axial direction of the body portion being an axial direction of the valve body member,

each of the lugs has a tip end portion that is opposed to the flow passage connecting portion, the tip end portion being provided with a communication port of the second flow passage, the tip end portion having bottom end surfaces, at least two of which are located on the same cross section in a cross section of 0 to 90 ° from the axial direction of the valve body member.

10. The fluid control device defined in any one of claims 1-9, wherein the projection has a connection portion that connects an outer wall of the lug; the connecting part and the flow passage connecting part are welded and fixed.

11. A fluid control device according to any one of claims 1 to 9 wherein the core member has an aperture or recess in which at least part of the first flow passage is located, the core member being movable relative to the valve body member, the aperture or recess being communicable with the second flow passage in a different lug in different conditions.