CN114838165B - Multi-channel valve device of vehicle thermal management system - Google Patents
Multi-channel valve device of vehicle thermal management system Download PDFInfo
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- CN114838165B CN114838165B CN202210379144.7A CN202210379144A CN114838165B CN 114838165 B CN114838165 B CN 114838165B CN 202210379144 A CN202210379144 A CN 202210379144A CN 114838165 B CN114838165 B CN 114838165B
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- valve
- ball
- holes
- management system
- thermal management
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- 238000007789 sealing Methods 0.000 claims description 71
- 230000007704 transition Effects 0.000 claims description 17
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
- F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Multiple-Way Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a multi-way valve device of a thermal management system for a vehicle. 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, a first flow passage is formed between the two first valve holes in a communicating mode, a second flow passage is formed between the second valve holes in corresponding positions on the two single-ball valve cores in a communicating mode, and the actuator drives the valve core shaft to act so as to drive the valve core ball to rotate to control the on-off between the first flow passage and the second flow passage and the at least four pipe orifices. According to the invention, 2 spherical valve cores are used to form a spherical core assembly to complete the switching of a plurality of channel loops, so that the valve device is more integrated, the system pipeline layout can be reduced, and the overall cost is greatly reduced.
Description
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 valve device of the existing automobile thermal management system mostly adopts a plurality of valve devices with few channels (two, three and four) to form a cooling loop, and has the advantages of high equipment cost, complex control and scattered layout. In recent years, the multi-way valve with higher integration level is replaced by the valve, wherein a cylindrical valve core product is mature, but the generated valve body has the defects of larger load torque (more than 2 N.m), difficult control of internal leakage sealing performance and the like.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provide the multi-way valve device of the vehicle thermal management system, which has less equipment, simple control and better internal leakage sealing performance.
The technical scheme adopted by the invention is as follows: the utility model provides a vehicle thermal management system multichannel valve device, includes valve body, duplex ball type case ball, valve mandrel, valve gap, a plurality of disk seat subassembly and executor, the valve gap is installed in the valve body top, be equipped with four mouth of pipe on the valve body at least, case ball and disk seat subassembly are installed inside the valve body, case mandrel one end is fixed in case ball top, the other end passes valve gap and executor fixed connection, the case ball includes two single ball case of relative arrangement, be equipped with two first valve openings and at least one second valve opening on the single ball case, communicate between two first valve openings and form first runner, communicate between the second valve opening of corresponding position on two single ball cases and form the second runner, the action of executor drive valve mandrel drives case ball rotation control first runner and second runner and the break-make between four mouths at least, the disk seat subassembly includes disk seat and VA type sealing washer, the disk seat is arranged with the mouth of pipe is coaxial, the one end face of disk seat is used for with case ball face sealing fit, and the terminal surface contact through VA type sealing washer.
Further, the single ball valve core comprises a ball body and a transition section, one end of the ball body is fixedly connected with the valve core shaft or is matched with the inner wall of the valve body in a positioning way, the other end of the ball body is fixedly connected with the transition section, 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 formed in the ball body, through holes for communicating the second valve hole are formed in the transition section, and the through holes at corresponding positions of the two transition sections are communicated.
Further, a sealing structure is arranged on the connecting end face between the transition sections of the two single-ball valve cores.
Further, a fan-shaped first limit boss is arranged on the end face of one end of the ball body, a second limit boss is arranged on the inner wall of the valve body matched with one end of the ball body and the bottom face of the valve cover, and the total stroke angle of the valve core ball is controlled through the cooperation of the first limit boss and the second limit boss.
Further, 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 interference fit through the pin shafts arranged on the two single ball valve cores.
Further, the VA type sealing ring comprises an annular body, an annular V-shaped groove is formed in one end of the outer wall of the body, and the section width of the V-shaped groove is sequentially increased along the direction from the inner wall of the body to the outer wall.
Further, 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 a pipe orifice of the valve body.
Further, an annular first sealing lip is arranged on the inner wall of the body, and protrudes out of the inner wall of the body; one end of the VA type sealing ring, which is in contact with the end face of the pipe orifice of the valve body, is provided with an annular second sealing lip, and the second sealing lip protrudes out of the end face of the body.
Further, two valve seats matched with valve holes at corresponding positions on 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 in a relative arrangement, and an arc section on the supporting plate is matched with the circumferential surface of the valve seat.
Further, six pipe orifices are arranged on the valve body, three second valve holes are arranged on the single-ball valve core, the first valve holes and the second valve holes on the valve core ball are combined to form five flow passages, and the five flow passages are matched with the six pipe orifices to form a six-way valve.
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 system pipeline layout can be reduced, the number of actuators is reduced to 1, the control is simplified from complex to simple, and the overall cost is greatly reduced.
The internal leakage performance of the valve seat and VA type sealing ring structure is adopted, the VA type sealing ring is used as a sealing and elastic compensation structure, the elastic pretightening force is reduced by means of cooling fluid pressure, 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 be integrally designed, and the assembly cost of a pipe orifice and the valve body is reduced; the ellipsoidal of the valve core ball and the sealing of the valve seat are sealed in a double loop way, so that the internal leakage performance can be improved, the torque of the valve body during the action can be reduced, and the abrasion of a sealing friction pair (the valve core ball and the valve seat) is further reduced. The invention has reasonable design of the valve seat sealing surface structure and the valve seat thickness, and reduces the wear rate and the equipment cost while ensuring the sealing.
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 of one view of the present invention.
Fig. 4 is a cross-sectional view of another view of the present invention.
Fig. 5 is a schematic view of a valve body of the present invention.
Fig. 6 is a schematic view showing the arrangement of a support plate on the valve body of the present invention.
Fig. 7 is a schematic view showing the arrangement of another support plate on the valve body of the present invention.
Fig. 8 is a schematic view of a valve 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 another view of a single ball valve core of the present invention.
FIG. 11 is a schematic view of a plurality of flow channels in a single-ball valve cartridge according to the present invention.
FIG. 12 is another schematic view of multiple flow channels within a single-ball valve cartridge of the present invention.
FIG. 13 is a cross-sectional view of a plurality of flow passages in a single ball valve cartridge of the present invention.
FIG. 14 is a schematic view of a single turn valve seat of the present invention.
FIG. 15 is a schematic view of a dual-turn valve seat of the present invention.
FIG. 16 is a cross-sectional view of a 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 a valve seat of the present invention with sizing.
FIG. 19 is a schematic view of a VA 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 vehicle thermal management system.
FIG. 22 is a schematic diagram of the multi-way valve of the present invention in mode 1 for use in a thermal management system for a vehicle.
Fig. 23 is a schematic view showing a state in which the multi-way valve of the present invention is applied to a thermal management system of a vehicle in mode 2.
FIG. 24 is a schematic view of the multi-way valve of the present invention in mode 3 as applied to a thermal management system for a vehicle.
In the figure, 1-valve body; 101-a pipe orifice; 102-quick intubation; 103-a second limit boss; 104-a support plate; 105-positioning the shaft; 106-ring grooves; 107-arc segments; 108-an extension; 2-a valve core ball; 3-a valve seat assembly; 301-double-turn valve seat; 4-a valve core shaft; 5-single ball valve core; 501-a first valve bore; 502-a second valve bore; 503-sealing structure; 504-a first flow channel; 505-a second flow channel; 506-a weight reduction groove; 507-positioning groove; 6, a valve cover; 7-valve seat; 701-an annular groove; 702-an end face; 703-the other end face; 704-a first circular mesa; 705-a second circular mesa; 8-VA type sealing ring; 801-body; an 802-V groove; 803-a first sealing lip; 804-a second sealing lip; 805-cavities; 806-a sidewall; 807-another sidewall; 9-sphere; 901-a first limit boss; 10-transition section; 1001-through holes; 1002-pin shaft; 1003-pin hole; 11-an actuator; 12-a support; 13-six-way valve; 14-a heat sink; 15-an air conditioning system; a 16-cell system; 17-PTC; 18-an expansion pot; 19-an electronic water pump; 20-front and rear motors; 21-a motor controller; 22-DC module.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1-20, the invention provides a multi-way valve device of a vehicle thermal management system, which comprises a valve body 1, a double-ball valve core ball 2, a valve mandrel 4, a valve cover 6, a plurality of valve seat assemblies 3 and an actuator 11, wherein the valve cover 5 is arranged at the top of the valve body 1, a circular groove 106 is arranged at the top of the valve body, the valve cover 6 is embedded in the circular groove 106 and is connected with the valve body 1 by adopting laser welding, in addition, the connection strength is increased through interference connection of a bushing and the valve body, and when the assembly is assembled on the whole vehicle, the nut can simultaneously increase the connection strength of the valve cover 6 and the valve body 1; at least four pipe orifices 101 are arranged on the valve body 1, 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 arranged 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 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 an X-shaped ring is adopted between the valve core shaft 4 and the valve cover 6 to conduct external sealing. The spool ball 2 comprises two single-ball spools 5 which are oppositely arranged, wherein two first valve holes 501 and at least one second valve hole 502 are arranged on the single-ball spools 5, a first flow passage 504 is formed by communicating the two first valve holes 501, a second flow passage 505 is formed by communicating the second valve holes 502 at corresponding positions on the two single-ball spools 5, namely, the first flow passage 504 is only realized on one single-ball spool 5, the second flow passage 505 is realized between the two single-ball spools 5, and one or more second flow passages 505 can be arranged according to the number of the nozzles 101 and the second valve holes 501, so that valves with different numbers of channels are formed. The actuator 11 drives the valve mandrel 4 to act to drive the valve core ball 2 to rotate so as to control the on-off of the first flow passage 504, the second flow passage 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 sealing fit with the surface of 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 spheroid 9 and changeover portion 10 that the integration is connected, and one end of spheroid 9 and the case axle 4 fixed connection of one of them single-ball valve core 5, the spheroid 9 one end of another single-ball valve core 5 and the inner wall location cooperation of valve body 1, and the other end of two spheroids 9 is connected with two changeover portion 10 fixed connection respectively, and the terminal surface of the changeover portion of two single-ball valve cores 5 is connected, first valve opening 501 and second valve opening 502 all set up on spheroid 9, be equipped with the through-hole 1001 of intercommunication second valve opening 502 on the changeover portion 10, be linked together between the through-hole 1001 of corresponding position on two changeover portions 10, make between two corresponding second valve openings 502 form second flow path 505.
In the above-mentioned scheme, be equipped with fan-shaped first spacing boss 901 on the terminal surface of spheroid 9 one end, valve body 1 inner wall and valve gap 6 bottom surface with spheroid 9 one end complex all are equipped with the spacing boss 103 of second, through the spacing boss 901 of first and the spacing boss 103 cooperation control case ball 2's of second total stroke angle, when starting point position promptly, one side of the spacing boss 901 of first laminating second one side of spacing boss 103, when case ball 2 rotates to the extreme point position, the opposite side of the spacing boss 103 of first laminating second, through the angle between two spacing boss both sides of rational design, can realize the size control of the total rotation angle of case 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 interference fit through the pin shafts 1002 arranged on each other.
In the above scheme, the connecting end surfaces (i.e. the connecting positions of the through holes 1001) between the transition sections 10 of the two single-ball valve cores 5 are provided with the sealing structures 503, the sealing structures 503 adopt sealing rib structures, the profile of the sealing ribs is controlled within 0.1, and the two end surfaces are pressed by using equipment with a certain pretightening force, so that the mutual internal leakage performance among the flow channels is ensured. 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, when the valve core ball 2 rotates, eccentric displacement is avoided through positioning of the positioning shaft 105, and the ball body 9 and the transition section 10 are provided with weight reducing 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, so that the equipment quantity is reduced, the assembly difficulty is reduced, the assembly efficiency is improved, two valve seats 7 matched with valve holes at corresponding positions on two single-ball valve cores 5 can be 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 the 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 in a relatively arranged manner, and the circular arc sections 107 on the supporting 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 and is not sealed, and other pipe orifices are sealed, so that the internal leakage performance is not affected, and the cost can be saved. When one unsealed valve seat assembly is reserved, a single-ring valve seat is formed, and the supporting plate on the valve body extends upwards to the position of the valve seat to serve as an extension section 108 to support the single valve 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 annular 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 top 704 and the axis is 47.6-57.1 degrees, and the included angle beta between the generatrix of the second circular table top 705 and the axis is 38.1-47.6 degrees. The thickness L1 of the valve seat 7 along the axial direction is 4-8 mm, and the thickness L2 of the inner wall of the valve seat 7 is 2-4mm.
In the above scheme, an annular groove 701 is arranged on an end face 703 of the valve seat 7, which is in contact with the inner wall of the valve body 1, one end of the annular groove 701, which is close to the valve body, is open, so that the VA-type sealing ring 8 is convenient to install, the VA-type sealing ring 8 is arranged in the annular groove 701, one end of the VA-type sealing ring 8 is in contact with the side wall of the annular groove 701, and the other end is in contact with the end face of the pipe orifice of the valve body 1.
The valve seat 7 is of an annular structure, is made of PVDF, can be formed through an injection molding process and has lower cost than PTFE. The section of the sealing surface consists of two inclined planes, and the section is contacted with the elliptic surface of the valve core to form double annular line sealing, so that under the same sealing ratio, smaller spring compensation elasticity is needed for the sealing of the sealing surface, the torque needed by the rotation of the valve core can be reduced, and the abrasion loss of the elliptic surface of the ball 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 there is annular V type groove 802, the cross-section width of V type groove 802 increases in proper order along the direction of body inner wall to the outer wall, and the one end face 808 that body 801 is close to the disk seat is the concave circular mesa inwards, and this circular mesa cooperates with V type groove 802, reserves certain space for the compression of VA type sealing washer 8.
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 is in body 801 inner wall, and first seal lip 803 inclines certain angle to the one side of keeping away from the valve body, forms the design of labyrinth, effectively improves seal reliability, and after the installation, the VA type sealing washer is in compressed state, pretightning force about 15N.
In the above scheme, the VA type sealing ring 8 is equipped with annular second sealing lip 804 with the one end of the mouth of pipe terminal surface contact of valve body 1, second sealing lip 804 protrusion is in body 801 terminal surface, second sealing lip 804 is equipped with two, and two second sealing lips 804 interval sets up in the inboard and the outside of body 801 terminal surface, and after the installation is accomplished, second sealing lip 804 hugs closely the valve body terminal surface, and two second sealing lips 804 form the dual line seal, can solve valve body wall drawing of patterns inclination influence, and is less than spring class elastic compensation element pretightning force under the empty load state, reduces about 25% under the same structural scheme.
In the above scheme, a cavity 805 is provided inside the body 801, and a metal skeleton is disposed in the cavity 805. VA sealing washer material is EPDM, and metal skeleton is SUS304, prevents the turn-ups.
In the above scheme, the angle between the two side walls of the V-shaped groove 802 is 75 ° to 80 °, after the perpendicular line 809 perpendicular to the axis of the VA-shaped sealing ring is made along the intersection point of the two side walls, the two side walls are respectively located at two sides of the perpendicular line, wherein the included angle λ between one side wall 806 near one end of the valve seat and the axis of the VA-shaped sealing ring is smaller than the included angle γ between the other side wall 807 far away from one end of the valve seat and the axis of the VA-shaped sealing ring, the included angle θ between the bus of the circular table surface of the body near the valve seat and the axis of the VA-shaped sealing ring is 20 ° -80 °, preferably 40 °, 60 °, and the angles of the side walls and the end faces of the V-shaped groove on the VA-shaped sealing ring are reasonably designed, so that 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 an even number, 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, six nozzles 101 are arranged on the valve body 1 of the present invention, at this time, three second valve holes 502 are arranged on the single-ball valve core 5, the first valve holes 501 and the second valve holes 502 on the valve core ball are combined to form five flow channels, and the five flow channels and the six nozzles are matched to form a six-way valve. The included angle of the central plane between the adjacent flow channels corresponding to the five flow channels on the valve core ball 2 is 72 degrees; the angle between the two sides of the fan-shaped first limit boss and the fan-shaped second limit boss is 72 degrees, so that the total stroke angle of one cycle of the double-ball valve core ball is 216 degrees.
The following description will take a six-way valve as an example, and as shown in fig. 21, a schematic diagram of the application of the six-way valve 13 of the present invention to a thermal management system of a vehicle includes a radiator 14; an air conditioning system 15; a battery system 16; PTC 17; an expansion kettle 18; an electronic water pump 19; front and rear motors 20; a motor controller 21; the DC-DC module 22 and the like are configured such that the spool ball can rotate in an angle range of 0 ° to 216 ° by control of the corresponding member during operation.
Mode 1
As shown in fig. 22, the duplex ball valve core ball is at the mechanical dead point starting point a, the angle is 0 °, the pipe orifices 1, 2, the pipe orifices 3, 4 and the pipe orifices 5, 6 are respectively communicated through 3 second flow passages, at this time, in a large circulation mode, the whole system needs cooling, and a pipe (battery cooler) intervenes in working.
Mode 2
As shown in fig. 23, the double ball valve core ball rotates 144 ° clockwise (the top view direction of the actuator) relative to the starting point, the nozzles 1 and 2 are communicated through the second flow passages, the nozzles 3 and 5 and the nozzles 4 and 6 are respectively communicated through the two first flow passages, and at this time, the double ball valve core ball is in a large circulation mode, and the whole system needs to be cooled.
Mode 3
As shown in fig. 24, the double ball-type valve core ball rotates by 216 ° clockwise (in the top view direction of the actuator) relative to the start point to reach the end point b, at this time, the nozzles 1 and 3 and the nozzles 2 and 4 are respectively communicated with each other through two first flow passages, the nozzles 5 and 6 are communicated with each other through a second flow passage, at this time, in a small circulation mode, the battery system is heated through the PTC or heat pump system, and the front and rear motors, the motor controller, the DC-DC module and the like are cooled through the radiator.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. What is not described in detail in this specification is prior art known to those skilled in the art.
Claims (10)
1. A multi-way valve device for a thermal management system of a vehicle, characterized by: the valve comprises a valve body (1), a double-ball valve core ball (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 (6) is arranged at the top of the valve body (1), at least four flow passages (504) are formed in the valve body (1), the valve core ball (2) and the valve seat components (3) are arranged in the valve body (1), one end of the valve core shaft (4) 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) and is 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 arranged on the single-ball valve cores (5), a first flow passage (504) is formed between the two first valve holes (501) in a communicating mode, a second flow passage (505) is formed between the second valve holes (502) at corresponding positions on the two single-ball valve cores (5), the actuator (11) drives the valve core shaft (4) to rotate to control the ball (2) and the second valve holes (502) to pass through the valve cover and the actuator (11) to be fixedly connected with the actuator, the valve core ball (11) comprises a valve seat (7) and at least one valve seat component (7), one end face of the valve seat (7) is used for being in sealing fit with the surface of the valve core ball (2), and the other end face of the valve seat (7) is in contact with the end face of the pipe orifice through the VA type sealing ring (8).
2. The vehicle thermal management system multichannel valve device according to claim 1, characterized in that: the single-ball valve core (5) comprises a ball body (9) and a transition section (10), one end of the ball body (9) is fixedly connected with a valve core shaft (4) or is matched with the inner wall of the valve body (1) in a positioning mode, the other end of the ball body (9) is fixedly connected with the transition section (10), the end faces of the transition sections (10) of the two single-ball valve cores are connected, the first valve hole (501) and the second valve hole (502) are all formed in the ball body (9), through holes (1001) for communicating the second valve holes are formed in the transition sections (10), and the through holes at corresponding positions on the two transition sections (10) are communicated.
3. The vehicle thermal management system multichannel valve device according to claim 2, characterized in that: 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 vehicle thermal management system multichannel valve device according to claim 2, characterized in that: a fan-shaped first limit boss (901) is arranged on the end face of one end of the ball body (9), a second limit boss (103) is arranged on the inner wall of the valve body (1) matched with one end of the ball body and the bottom face of the valve cover (6), and the total stroke angle of the valve core ball (2) is controlled through the cooperation of the first limit boss (901) and the second limit boss (103).
5. The vehicle thermal management system multichannel valve device according to claim 2, characterized in that: 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 interference fit through the pin shafts (1002) arranged on each other.
6. The vehicle thermal management system multichannel valve device according to claim 1, characterized in that: an annular groove (701) is formed in one end face, which is in contact with the inner wall of the valve body (1), of the valve seat (7), the VA type sealing ring (8) is arranged in the annular groove (701), one end of the VA type sealing ring is in contact with the side wall of the annular groove (701), and the other end of the VA type sealing ring is in contact with the end face of a pipe orifice of the valve body (1).
7. The vehicle thermal management system multichannel valve device according to claim 1, characterized in that: VA type sealing washer (8) are including annular body (801), annular V type groove (802) are opened to outer wall one end of body (801), the cross-section width in V type groove (802) increases in proper order along the direction of body inner wall to outer wall.
8. The vehicle thermal management system multichannel valve device according to claim 7, characterized in that: 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) contacted with the pipe orifice end face 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 vehicle thermal management system multichannel valve device according to claim 1, characterized in that: two valve seats (7) matched with valve holes at corresponding positions on 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) in a relative arrangement, and an arc section on the supporting plates (104) is matched with the circumferential surface of the valve seat.
10. The vehicle thermal management system multichannel valve device according to claim 1, characterized in that: six pipe orifices (101) are arranged on the valve body (1), three second valve holes (502) are arranged on the single-ball valve core (5), the first valve holes (501) and the second valve holes (502) on the valve core ball (2) are combined to form five flow passages, and the five flow passages are matched with the six pipe orifices to form a six-way valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210379144.7A CN114838165B (en) | 2022-04-12 | 2022-04-12 | Multi-channel valve device of vehicle thermal management system |
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| CN202210379144.7A CN114838165B (en) | 2022-04-12 | 2022-04-12 | Multi-channel valve device of vehicle thermal management system |
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| CN114838165B true CN114838165B (en) | 2024-08-20 |
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| CN202210379144.7A Active CN114838165B (en) | 2022-04-12 | 2022-04-12 | Multi-channel valve device of vehicle thermal management system |
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| CN114738511A (en) * | 2022-05-06 | 2022-07-12 | 浙江吉利控股集团有限公司 | Integrated valve core, multi-way valve of integrated valve core and vehicle body thermal management system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204477387U (en) * | 2014-12-26 | 2015-07-15 | 上海通用汽车有限公司 | Multi-path ball valve, multi-path ball valve assembly, heat management system and vehicle |
| CN210978623U (en) * | 2019-09-20 | 2020-07-10 | 嘉兴科奥电磁技术有限公司 | Valve core of multi-way valve and multi-way valve thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3280937B1 (en) * | 2015-04-09 | 2020-01-08 | Giacomini S.p.A. | Multiway valve with bypass circuit |
| US11118695B2 (en) * | 2018-05-18 | 2021-09-14 | Mogas Industries, Inc. | Multiport valve |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204477387U (en) * | 2014-12-26 | 2015-07-15 | 上海通用汽车有限公司 | Multi-path ball valve, multi-path ball valve assembly, heat management system and vehicle |
| CN210978623U (en) * | 2019-09-20 | 2020-07-10 | 嘉兴科奥电磁技术有限公司 | Valve core of multi-way valve and multi-way valve thereof |
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Effective date of registration: 20240129 Address after: No. 51 Fengshu Second Road, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province, 430056 Applicant after: DONGFENG FUJI THOMSON THERMOSTAT Co.,Ltd. Country or region after: China Applicant after: DONGFENG MOTOR PARTS AND COMPONENTS GROUP Co.,Ltd. Address before: 430056 No.51, fengshuer Road, Wuhan Economic and Technological Development Zone, Hubei Province Applicant before: DONGFENG FUJI THOMSON THERMOSTAT Co.,Ltd. Country or region before: China |
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