CN114838165A

CN114838165A - Multi-channel valve device of thermal management system for vehicle

Info

Publication number: CN114838165A
Application number: CN202210379144.7A
Authority: CN
Inventors: 不公告发明人
Original assignee: DONGFENG FUJI THOMSON THERMOSTAT CO LTD
Current assignee: DONGFENG FUJI THOMSON THERMOSTAT CO LTD; Dongfeng Motor Parts And Components Group Co ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-08-02

Abstract

The invention discloses a multi-channel valve device of a vehicle thermal management system. It includes valve body, two ball-type's valve core ball, valve mandrel, valve gap, valve seat subassembly and executor, the valve gap is installed in the valve body top, be equipped with four mouths of pipe on the valve body at least, valve core ball and valve seat subassembly are installed inside the valve body, the valve core ball is including two single ball valve cores of mutual disposition, be equipped with two first valve openings and at least one second valve opening on the single ball valve core, the intercommunication forms first runner between two first valve openings, and the intercommunication forms the second runner between the second valve opening of corresponding position on two single ball valve cores, the executor drives valve mandrel action and drives the first runner of valve core ball rotation control and the break-make between four at least mouths of pipe. The invention uses 2 spherical valve cores to form a spherical core component to complete the switching of a plurality of channel loops, the valve device is more integrated, the layout of system pipelines can be reduced, and the overall cost is greatly reduced.

Description

Multi-way valve device of vehicle thermal management system

Technical Field

The invention belongs to the technical field of automobile thermal management systems, and particularly relates to a multi-channel valve device of an automobile thermal management system.

Background

The existing valve device of the automobile heat management system mostly adopts a plurality of valve devices with few passages (two, three and four) to form a cooling loop, and has high equipment cost, complex control and scattered layout. In recent years, a multi-way valve with higher valve integration degree is replaced, wherein a cylindrical valve core is mature, but the valve body has the defects of large load torque (larger than 2 N.m), difficult control of internal leakage sealing performance and the like.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provide the multi-way valve device of the vehicle thermal management system, which has less equipment, simple control and better inner leakage sealing performance.

The technical scheme adopted by the invention is as follows: a multi-channel valve device of a vehicle thermal management system comprises a valve body, a duplex ball type valve core ball, a valve core shaft, a valve cover, a plurality of valve seat assemblies and an actuator, wherein the valve cover is arranged at the top of the valve body, at least four pipe orifices are formed in the valve body, the valve core ball and the valve seat assemblies are arranged in the valve body, one end of the valve core shaft is fixed at the top of the valve core ball, the other end of the valve core shaft penetrates through the valve cover to be fixedly connected with the actuator, the valve core ball comprises two single ball valve cores which are oppositely arranged, two first valve holes and at least one second valve hole are formed in the single ball valve cores, the two first valve holes are communicated to form a first flow channel, the second valve holes in corresponding positions in the two single ball valve cores are communicated to form a second flow channel, the actuator drives the valve core ball to rotate to control the make-and-break of the first flow channel and the second flow channel and the at least four pipe orifices, the valve seat assemblies comprise valve seats and VA type sealing rings, the valve seat is coaxially arranged with the pipe orifice, one end face of the valve seat is used for being in sealing fit with the surface of the valve core ball, and the other end face of the valve seat is in contact with the end face of the pipe orifice through the VA-type sealing ring.

Furthermore, the single-ball valve core comprises a ball body and transition sections, one end of the ball body is fixedly connected with the valve core shaft or is in positioning fit with the inner wall of the valve body, the other end of the ball body is fixedly connected with the transition sections, the end faces of the transition sections of the two single-ball valve cores are connected, the first valve hole and the second valve hole are arranged on the ball body, through holes communicated with the second valve hole are formed in the transition sections, and the through holes corresponding to the positions in the two transition sections are communicated with each other.

Furthermore, a sealing structure is arranged on the connecting end face between the transition sections of the two single-ball valve cores.

Furthermore, a fan-shaped first limiting boss is arranged on one end face of the ball body, second limiting bosses are arranged on the inner wall of the valve body matched with one end of the ball body and the bottom surface of the valve cover, and the total stroke angle of the valve core ball is controlled through the matching of the first limiting boss and the second limiting boss.

Furthermore, a pin shaft and a pin hole are arranged on the end face of the transition section, and the two single-ball valve cores are connected with the pin hole in an interference fit mode through the pin shafts arranged mutually.

Further, VA type sealing washer includes annular body, the outer wall one end of body is opened there is annular V type groove, the cross-sectional width in V type groove increases in proper order to the direction of outer wall along the body inner wall.

Furthermore, an annular groove is formed in one end face, in contact with the inner wall of the valve body, of the valve seat, the VA-type sealing ring is arranged in the annular groove, one end of the VA-type sealing ring is in contact with the side wall of the annular groove, and the other end of the VA-type sealing ring is in contact with the end face of the pipe orifice of the valve body.

Furthermore, an annular first sealing lip is arranged on the inner wall of the body, and the first sealing lip protrudes out of the inner wall of the body; VA type sealing washer is equipped with annular second seal lip with the one end of the mouth of pipe end face contact of valve body, second seal lip protrusion in body terminal surface.

Furthermore, two valve seats matched with valve holes at corresponding positions on the two single-ball valve cores are connected into a whole to form a double-ring valve seat, the double-ring valve seat is supported between the valve body and the valve cover through a supporting piece, the supporting piece comprises supporting plates which are respectively arranged on the inner wall of the valve body and the bottom surface of the valve cover and are oppositely arranged, and arc-shaped sections on the supporting plates are matched with the circumferential surface of the valve seats.

Furthermore, six pipe orifices are arranged on the valve body, three second valve holes are arranged on the single-ball valve core, the first valve hole and the second valve hole on the valve core ball are combined to form five flow channels, and the five flow channels are matched with the six pipe orifices to form the six-way valve.

The invention uses 2 spherical valve cores to form a spherical core assembly to complete the switching of a plurality of channel loops, the valve device is more integrated, the system pipeline layout can be reduced, the number of actuators is reduced from a plurality to 1, the control is simplified from complexity, and the total cost is greatly reduced.

The internal leakage performance of the valve adopts a structure of the valve seat and the VA-type sealing ring, the VA-type sealing ring is used as a sealing and elastic compensation structure, the elastic pre-tightening force is reduced by means of the pressure of cooling liquid, the assembly is convenient, the action torque of the valve body is reduced, the abrasion of a sealing friction pair (a valve core and a valve seat) is further reduced, the number of assembly equipment is reduced, the cost is reduced, the valve body can adopt an integrated design, and the assembly cost of a pipe orifice and the valve body is reduced; the sealing of the ellipsoid of the valve core ball and the valve seat adopts a double-loop line for sealing, so that the inner leakage performance can be improved, the torque of the valve body during action can be reduced, and the abrasion of a sealing friction pair (the valve core ball and the valve seat) is further reduced. The valve seat sealing surface structure and the valve seat thickness are reasonably designed, so that the wear rate and the equipment cost are reduced while the sealing is ensured.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a cross-sectional view from a perspective of the present invention.

Fig. 4 is a cross-sectional view from another perspective of the present invention.

Fig. 5 is a schematic view of the valve body of the present invention.

Fig. 6 is a schematic view of the arrangement of a support plate on the valve body of the present invention.

Fig. 7 is a schematic view of another arrangement of the support plate on the valve body of the present invention.

Fig. 8 is a schematic view of a cartridge ball of the present invention.

FIG. 9 is a schematic view of a single ball valve cartridge of the present invention from one perspective.

Fig. 10 is a schematic view of a single ball valve cartridge of the present invention from another perspective.

FIG. 11 is a schematic view of multiple flow passages in a single core ball valve of the present invention.

FIG. 12 is another schematic view of multiple flow passages in a single core ball valve of the present invention.

FIG. 13 is a cross-sectional view of a plurality of flow passages in a single core of a ball valve of the present invention.

FIG. 14 is a schematic view of a single-ring valve seat of the present invention.

FIG. 15 is a schematic view of a dual-ring valve seat of the present invention.

FIG. 16 is a cross-sectional view of the valve seat assembly of the present invention.

FIG. 17 is a cross-sectional view of a valve seat of the present invention.

FIG. 18 is a schematic illustration of the valve seat of the present invention with dimensions indicated.

Fig. 19 is a schematic view of a VA-type seal ring of the present invention.

Fig. 20 is a cross-sectional view of a VA-type seal ring of the present invention.

FIG. 21 is a schematic view of the application of the multi-way valve of the present invention to a thermal management system for a vehicle.

FIG. 22 is a schematic view of the multi-way valve of the present invention in mode 1 applied to a thermal management system for a vehicle.

FIG. 23 is a schematic view of the multi-way valve of the present invention in mode 2 applied to a thermal management system for a vehicle.

FIG. 24 is a schematic view of the multi-way valve of the present invention in mode 3 applied to a thermal management system for a vehicle.

In the figure, 1-valve body; 101-a nozzle; 102-quick intubation; 103-a second limit boss; 104-a support plate; 105-a positioning shaft; 106-circular ring groove; 107-arc segment; 108-an extension; 2-a valve core ball; 3-a valve seat assembly; 301-double ring valve seat; 4-valve core shaft; 5-single ball valve core; 501-a first valve hole; 502-a second valve bore; 503-sealing structure; 504-a first flow channel; 505-a second flow channel; 506-weight reduction slots; 507-positioning grooves; 6-valve cover; 7-valve seat; 701-an annular groove; 702-an end face; 703-the other end face; 704-a first circular table top; 705-a second mesa; 8-VA type seal ring; 801-body; an 802-V groove; 803-first sealing lip; 804-a second sealing lip; 805-a cavity; 806-a sidewall; 807-the other side wall; 9-sphere; 901-a first limit boss; 10-a transition section; 1001-through hole; 1002-a pin roll; 1003-pin holes; 11-an actuator; 12-a support; 13-a six-way valve; 14-a heat sink; 15-an air conditioning system; 16-a battery system; 17-PTC; 18-an expansion pot; 19-an electronic water pump; 20-front and rear motors; 21-a motor controller; 22-DC-DC module.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, and is not intended to limit the present invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-20, the invention provides a multi-channel valve device of a vehicle thermal management system, which comprises a valve body 1, a double-sphere type valve core sphere 2, a valve core shaft 4, a valve cover 6, a plurality of valve seat components 3 and an actuator 11, wherein the valve cover 5 is arranged at the top of the valve body 1, an annular groove 106 is formed in the top of the valve body, the valve cover 6 is embedded in the annular groove 106 and is connected with the valve body 1 by laser welding, in addition, the connection strength is increased by interference connection of a lining and the valve body, and when an assembly is assembled in a whole vehicle, the nut can increase the connection strength of the valve cover 6 and the valve body 1; the valve body 1 is at least provided with four pipe orifices 101, the pipe orifices 101 are connected with a quick insertion pipe 102, and the pipe orifices 101 and the quick insertion pipe 102 can be connected in an integral injection molding mode or a rotary friction welding mode; the valve core ball 2 and the valve seat assembly 3 are installed inside the valve body 1, one end of the valve core shaft 4 is connected with the top of the valve core ball 2 in a spline structure in an interference fit mode, the spline structure is made of SUS 303F, the other end of the valve core shaft 4 penetrates through the valve cover 6 to be fixedly connected with the actuator 11, and the valve core shaft 4 and the valve cover 6 are externally sealed through an X-shaped ring. The valve core ball 2 comprises two single ball valve cores 5 which are oppositely arranged, two first valve holes 501 and at least one second valve hole 502 are arranged on the single ball valve cores 5, a first flow channel 504 is formed by communicating the two first valve holes 501, a second flow channel 505 is formed by communicating the second valve holes 502 at corresponding positions on the two single ball valve cores 5, namely the first flow channel 504 is realized on only one single ball valve core 5, the second flow channel 505 is realized between the two single ball valve cores 5, and one or more second flow channels 505 can be arranged according to the number of the pipe orifices 101 and the number of the second valve holes 501, so that valves with different numbers of channels are formed. The actuator 11 drives the valve mandrel 4 to move so as to drive the valve core ball 2 to rotate and control the on-off between the first flow channel 504 and the second flow channel 505 and at least four pipe orifices 101, the valve seat assembly 3 comprises a valve seat 7 and a VA-type sealing ring 8, the valve seat 7 and the pipe orifices 101 are coaxially arranged, one end face of the valve seat 7 is used for being in surface sealing fit with the valve core ball 2, and the other end face of the valve seat 7 is in end face contact with the pipe orifices 101 through the VA-type sealing ring 8.

In the above scheme, the single-ball valve core 5 includes a ball 9 and a transition section 10 that are integrally connected, one end of the ball 9 of one of the single-ball valve cores 5 is fixedly connected with the valve core shaft 4, one end of the ball 9 of the other single-ball valve core 5 is in positioning fit with the inner wall of the valve body 1, the other ends of the two balls 9 are respectively fixedly connected with the two transition sections 10, the end faces of the transition sections of the two single-ball valve cores 5 are connected, the first valve hole 501 and the second valve hole 502 are both disposed on the ball 9, the transition section 10 is provided with a through hole 1001 communicating with the second valve hole 502, the through holes 1001 at corresponding positions on the two transition sections 10 are communicated with each other, and a second flow channel 505 is formed between the two corresponding second valve holes 502.

In the above scheme, be equipped with fan-shaped first spacing boss 901 on the terminal surface of spheroid 9 one end, the spacing boss 103 of second all is equipped with the 1 inner wall of spheroid 9 one end complex valve body and 6 bottom surfaces of valve gap, through the spacing boss 901 of first spacing and the spacing boss 103 cooperation control valve core ball 2's of second total stroke angle, when starting point position promptly, the spacing boss 103 of first spacing 901 one side laminating second one side, when valve core ball 2 rotated to the terminal point position, the spacing boss 103 of first spacing boss 901 opposite side laminating second opposite side, through the angle between two spacing boss both sides of rational design, can realize the big or small control of the total rotation angle of valve core ball 2. The end face of the transition section 10 is provided with a pin shaft 1002 and a pin hole 1003, and the two single-ball valve cores 5 are connected with the pin hole 1003 in an interference fit mode through the pin shafts 1002 and the pin holes 1003 which are arranged mutually.

In the above scheme, the sealing structure 503 is arranged on the connecting end surface (i.e. the position where the through holes 1001 are connected) between the transition sections 10 of the two single-ball valve cores 5, the sealing structure 503 is of a sealing rib structure, the profile of the sealing rib is controlled within 0.1, and the two end surfaces are pressed by using equipment with a certain pre-tightening force, so as to ensure the mutual internal leakage performance between the flow channels. The end face of the ball body 9 of the single-ball valve core 5 matched with the inner wall of the valve body 1 is provided with a positioning groove 507, the inner wall of the valve body 1 is provided with a positioning shaft 105, the positioning shaft 105 is matched with the positioning groove 507, the valve core ball 2 is positioned by the positioning shaft 105 to avoid eccentric displacement when rotating, and the ball body 9 and the transition section 10 are both provided with weight reduction grooves 506, so that the cost can be further reduced.

In the above scheme, the valve seat assembly 3 is installed at each pipe orifice 101, in order to reduce the number of devices and reduce the assembly difficulty and improve the assembly efficiency, the two valve seats 7 matched with the valve holes at the corresponding positions on the two single-ball valve cores 5 can be connected to form a double-ring valve seat 301, the double-ring valve seat 301 is supported between the valve body 1 and the valve cover 6 through a support member 12, the support member 12 comprises support plates 104 which are respectively arranged on the inner wall of the valve body 1 and the bottom surface of the valve cover 6 and are arranged oppositely, and the arc sections 107 on the support plates 104 are matched with the circumferential surfaces of the valve seats 7. When the valve seat assembly is arranged, one pipe orifice can be reserved at a plurality of pipe orifice positions for not sealing, other pipe orifices are sealed, the inner leakage performance is not influenced, and the cost can be saved. If an unsealed seat is reserved, a single seat assembly, namely a single-ring seat, exists, and the support plate on the valve body extends upwards to the seat position to serve as an extension section 108 to support the single seat assembly.

In the above scheme, one end surface 702 of the valve seat 7 is formed by integrally splicing a first circular table surface 704 and a second circular table surface 705, and when one end surface 702 of the valve seat is sealed with the spherical surface of the valve core ball, the spherical surface is respectively in circular line contact with the first circular table surface 704 and the second circular table surface 705. The included angle alpha between the generatrix of the first circular table surface 704 and the axis is 47.6-57.1 degrees, and the included angle beta between the generatrix of the second circular table surface 705 and the axis is 38.1-47.6 degrees. The thickness L1 of valve seat 7 along axial direction is 4 ~ 8mm, and the thickness L2 of valve seat 7 inner wall is 2-4 mm.

In the above scheme, be equipped with ring channel 701 on the terminal surface 703 that valve seat 7 and valve body 1 inner wall contacted, the one end that ring channel 701 is close to the valve body is open, the installation VA type sealing washer 8 of being convenient for, VA type sealing washer 8 sets up in ring channel 701, the one end of VA type sealing washer 8 and ring channel 701 lateral wall contact, the other end and the mouth of pipe end face contact of valve body 1.

The valve seat 7 is of an annular structure and made of PVDF (polyvinylidene fluoride), can be formed by an injection molding process and has lower cost than PTFE. The section of the sealing surface consists of two inclined planes, the two inclined planes are in contact with the elliptic surface of the valve core to form double annular line sealing, and under the same sealing ratio, the spring compensation elasticity smaller than that of the surface sealing is required, so that the torque required by the rotation of the valve core can be reduced, and meanwhile, the abrasion loss of the elliptic surface of the spherical core and the sealing surface of the valve seat can be reduced.

In the above scheme, VA type sealing washer 8 includes annular body 801, the one end that is close to disk seat 7 of body 801 outer wall is opened has annular V type groove 802, the cross-sectional width in V type groove 802 increases to the direction of outer wall along the body inner wall in proper order, and a terminal surface 808 that body 801 is close to the disk seat is inside sunken mesa, and this mesa cooperates with V type groove 802, reserves certain space for VA type sealing washer 8's compression.

In the above scheme, be equipped with annular first seal lip 803 on the inner wall of body 801 laminating disk seat 7, first seal lip 803 protrusion in body 801 inner wall, first seal lip 803 forms the design of labyrinth to the certain angle of one side slope of keeping away from the valve body, effectively improves sealed reliability, and after the installation, VA type sealing washer is in by compression state, and the pretightning force is about 15N.

In the above scheme, VA type sealing washer 8 is equipped with annular second seal lip 804 with the one end of the mouth of pipe end face contaction of valve body 1, second seal lip 804 protrusion in body 801 terminal surface, second seal lip 804 is equipped with two, and two second seal lips 804 intervals set up in the inboard and the outside of body 801 terminal surface, and the installation is accomplished the back, and the valve body terminal surface is hugged closely to second seal lip 804, and two second seal lips 804 form the double-line seal, can solve valve body wall drawing of patterns inclination and influence, and is littleer than spring class elastic compensation component pretightning force under the idling state, reduces about 25% under the same structural scheme.

In the above scheme, a cavity 805 is arranged inside the body 801, and a metal framework is arranged in the cavity 805. The VA type sealing ring material is EPDM, and metal framework is SUS304, prevents the turn-ups.

In the scheme, the angle between the two side walls of the V-shaped groove 802 is 75-80 degrees, after a perpendicular line 809 perpendicular to the axis of the VA-type sealing ring is made along the intersection point of the two side walls, the two side walls are respectively positioned at two sides of the perpendicular line, wherein the included angle lambda between one side wall 806 close to one end of the valve seat and the axis of the VA-type sealing ring is smaller than the included angle gamma between the other side wall 807 far away from one end of the valve seat and the axis of the VA-type sealing ring, the included angle theta between the generatrix of the circular table surface of the body close to the valve seat and the axis of the VA-type sealing ring is 20-80 degrees, preferably 40 degrees and 60 degrees, the angles of the side walls and the end surfaces of the V-shaped groove on the VA-type sealing ring are reasonably designed, and the compression performance and the elastic pretightening force of the V-shaped groove can be ensured.

In the above scheme, the number of the nozzles 101 on the valve body 1 is generally even, and may be four, six, eight or ten, and the number of the second valve holes 502 on the single ball valve core 5 is reasonably arranged according to the number of the nozzles 101.

As an embodiment, the valve body 1 of the invention is provided with six pipe orifices 101, at this time, the single ball valve core 5 is provided with three second valve holes 502, the first valve hole 501 and the second valve hole 502 on the valve core ball are combined to form five flow channels, and the five flow channels are matched with the six pipe orifices to form a six-way valve. The included angle of the central plane between the adjacent flow passages corresponding to the five flow passages on the valve core ball 2 is 72 degrees; the angle between the two sides of the fan-shaped first limit boss and the second limit boss is 72 degrees, so that the total circulating stroke angle of the double-ball type valve core ball is 216 degrees.

The application of the six-way valve is described below, and as shown in fig. 21, the six-way valve 13 is a schematic diagram of the vehicle thermal management system, which includes a radiator 14; an air conditioning system 15; a battery system 16; a PTC 17; an expansion pot 18; an electronic water pump 19; front and rear motors 20; a motor controller 21; the DC-DC module 22 and other structures can rotate the valve core ball in an angle range of 0-216 degrees through the control of corresponding parts during operation.

Mode 1

As shown in fig. 22, the dual ball type valve core ball is at the starting point a of the mechanical dead point, the angle is 0 °, the

nozzles

1 and 2, the

nozzles

3 and 4, and the

nozzles

5 and 6 are respectively communicated through 3 second flow passages, and at this time, in the large circulation mode, the whole system needs to be cooled, and a chiller (battery cooler) is involved in the work.

Mode 2

As shown in fig. 23, the dual ball type spool ball rotates clockwise (in the top view direction of the actuator) by 144 ° relative to the starting point, the

pipe orifices

1 and 2 are communicated through the second flow passage, the

pipe orifices

3 and 5 and the

pipe orifices

4 and 6 are respectively communicated through the two first flow passages, and at this time, the dual ball type spool ball is in a large circulation mode, and the whole system needs to be cooled.

Mode 3

As shown in fig. 24, the dual ball type spool ball rotates clockwise (in the top view direction of the actuator) 216 ° relative to the starting point to reach the end point b, at this time, the

pipe orifices

1 and 3, and the

pipe orifices

2 and 4 are respectively communicated through two first flow channels, the

pipe orifices

5 and 6 are communicated through a second flow channel, and at this time, the dual ball type spool ball is in a small circulation mode, the battery system is heated by the PTC or heat pump system, and the front and rear motors, the motor controller, the DC-DC module, and the like are cooled by the radiator.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Those not described in detail in this specification are within the skill of the art.

Claims

1. The utility model provides a vehicle thermal management system multichannel valve gear which characterized in that: the double-ball type double-valve core ball valve comprises a valve body (1), a double-ball type valve core ball (2), a valve core shaft (4), a valve cover (6), a plurality of valve seat assemblies (3) and an actuator (11), wherein the valve cover (6) is installed at the top of the valve body (1), at least four pipe orifices (101) are arranged on the valve body (1), the valve core ball (2) and the valve seat assemblies (3) are installed inside the valve body (1), one end of the valve core shaft (3) is fixed at the top of the valve core ball (2), the other end of the valve core shaft penetrates through the valve cover (6) to be fixedly connected with the actuator (11), the valve core ball (2) comprises two single-ball valve cores (5) which are oppositely arranged, two first valve holes (501) and at least one second valve hole (502) are formed in the single-ball valve cores (5), the two first valve holes (501) are communicated to form a first flow passage (504), and the second valve holes (502) at corresponding positions on the two single-ball valve cores (5) are communicated to form a second flow passage (505), executor (11) are driven valve mandrel (4) and are moved and are driven valve core ball (2) break-make between first runner (504) of rotation control and at least four nozzles (101), valve seat subassembly (3) are including disk seat (7) and VA type sealing washer (8), disk seat (7) and the coaxial arrangement of nozzle, a terminal surface of disk seat (7) is used for with valve core ball (2) surface seal cooperation, another terminal surface of disk seat (7) passes through VA type sealing washer (8) and nozzle end face contact.

2. The vehicular thermal management system multi-way valve apparatus of claim 1, wherein: single ball case (5) are including spheroid (9) and changeover portion (10), spheroid (9) one end and case axle (4) fixed connection or with valve body (2) inner wall location fit, spheroid (9) other end and changeover portion (10) fixed connection, the terminal surface of changeover portion (10) of two single ball case is connected, first valve opening (501) and second valve opening (502) all set up on spheroid (9), be equipped with through-hole (1001) of intercommunication second valve opening on changeover portion (10), be linked together between the through-hole of corresponding the position on two changeover portion (10).

3. The vehicular thermal management system multi-way valve apparatus of claim 2, wherein: and a sealing structure (503) is arranged on the connecting end surface between the transition sections of the two single-ball valve cores (5).

4. The vehicular thermal management system multi-way valve arrangement of claim 2, wherein: the valve core ball is characterized in that a fan-shaped first limiting boss (901) is arranged on one end face of the ball body (9), second limiting bosses (103) are arranged on the inner wall of the valve body (1) matched with one end of the ball body and the bottom surface of the valve cover (6), and the total stroke angle of the valve core ball (2) is controlled through the matching of the first limiting boss (901) and the second limiting bosses (103).

5. The vehicular thermal management system multi-way valve arrangement of claim 2, wherein: the end face of the transition section (10) is provided with a pin shaft (1002) and a pin hole (1003), and the two single-ball valve cores (5) are connected with the pin hole (1003) in an interference fit mode through the pin shafts (1002) arranged mutually.

6. The vehicular thermal management system multi-way valve apparatus of claim 1, wherein: the valve seat (7) is provided with an annular groove (701) on one end face contacted with the inner wall of the valve body (1), the VA type sealing ring (8) is arranged in the annular groove (701), one end of the VA type sealing ring is contacted with the side wall of the annular groove (701), and the other end of the VA type sealing ring is contacted with the end face of the pipe orifice of the valve body (1).

7. The vehicular thermal management system multi-way valve apparatus of claim 1, wherein: VA type sealing washer (8) are including annular body (801), the outer wall one end of body (801) is opened has annular V type groove (802), the cross-sectional width in V type groove (802) increases in proper order to the direction of outer wall along the body inner wall.

8. The vehicular thermal management system multi-way valve apparatus of claim 7, wherein: an annular first sealing lip (803) is arranged on the inner wall of the body (801), and the first sealing lip (803) protrudes out of the inner wall of the body; one end of the VA-type sealing ring (8) in contact with the end face of the pipe orifice of the valve body (1) is provided with an annular second sealing lip (804), and the second sealing lip (804) protrudes out of the end face of the body.

9. The vehicular thermal management system multi-way valve apparatus of claim 1, wherein: the two valve seats (7) matched with the valve holes at the corresponding positions on the two single-ball valve cores (5) are connected into a whole to form a double-ring valve seat (301), the double-ring valve seat (301) is supported between the valve body (1) and the valve cover (6) through a supporting piece (12), the supporting piece (12) comprises supporting plates (104) which are respectively arranged on the inner wall of the valve body (1) and the bottom surface of the valve cover (6) and are oppositely arranged, and arc-shaped sections on the supporting plates (104) are matched with the circumferential surfaces of the valve seats.

10. The vehicular thermal management system multi-way valve apparatus of claim 1, wherein: be equipped with six mouths of pipe (101) on valve body (1), be equipped with three second valve opening (502) on single-ball case (5), first valve opening (501) and second valve opening (502) combination on case ball (2) form five runners, and five runners form six-way valve with six mouths of pipe cooperations.