Five-way water valve

Abstract

The application discloses a five-way water valve, which comprises an actuator, a valve body assembly arranged on one side of the actuator, a valve body and a valve seat arranged in the interior of the valve body and close to the bottom of the valve body, a valve core arranged in the interior of the valve body and close to the valve seat, a flow-through hole arranged in the bottom end of the valve body in a cross shape or in an annular arrangement, a through hole arranged on the valve seat and corresponding to the flow-through hole, the center of the valve core coincides with the center of the valve body, the end face of the valve core towards the valve seat is divided into a first cavity, a second cavity and a third cavity, a valve cover is arranged at one end of the valve body, a stopper is arranged between the inner side of the valve cover and the valve core, one end of the stopper is connected with the valve core, the other end of the stopper is connected with the rotating output end of the actuator, and the inner side of the stopper is provided with an elastic element abutting against the top of the valve core. The five-way water valve has the advantages of simple structure and can solve the problems of large volume and large fluid resistance of the existing electronic water valve.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water valves, in particular to a light weight, intelligent, low energy consumption, fast response, high precision five-way water valve. BACKGROUND

[0002] In recent years, with the rapid development of new energy vehicle industry, its thermal management system has become more and more integrated and intelligent. Compared with traditional fuel vehicles, new energy vehicles have different thermal management systems due to different driving forms and energy architectures. The driving motor of new energy vehicles requires high power and high speed, which will generate a large amount of heat during high-speed driving. If this heat is not removed in time, it will seriously affect the performance and service life of the motor; to improve the endurance, automobile manufacturers often choose high energy density and high discharge rate power batteries, but too high energy density and discharge rate will inevitably generate a large amount of heat in the use process of the battery, and high temperature will not only affect the service life of the battery, but also easily cause safety accidents. The thermal management system of new energy vehicles is relatively complex, and the temperature control requirements of different working systems are different, so the cooling liquid flow to each working system is also different. Therefore, new energy vehicles need efficient thermal management systems to ensure the stable operation of the vehicle, and the temperature control problem faces great challenges. With the increasingly stringent energy-saving and emission-reduction policies, the traditional automobile thermostat has the disadvantages of "response delay" and "hysteresis characteristics", poor flowability, and difficulty in accurately controlling the flow size, resulting in low thermal management efficiency and being unable to meet the high requirements of new energy vehicles for temperature control. Therefore, the thermal management system of traditional vehicles is also gradually optimized, and electronic water valves have been used on some vehicle models to replace traditional thermostats for cooling liquid regulation.

[0003] The electronic water valve is a new type of cooling liquid flow regulating valve in the thermal management system of new energy vehicles, which is similar to the traditional fuel vehicle thermostat in function and working principle. Its main function is to adaptively adjust the flow size of each pipeline cooling liquid according to the temperature change of different working parts, to ensure that the battery, motor and other parts are in the best working temperature environment, so as to achieve the purpose of energy saving and emission reduction and improve the energy utilization rate.

[0004] At present, the structure design of electronic five-way water valve usually adopts column valve structure, the outside inlet and outlet flow channels are distributed on the side wall, the flow channels are also arranged on the valve core in the middle, the flow channels can be switched, the flow direction can be changed, and the flow can be adjusted by rotating the valve core, so that the purpose of switching different modes of the valve body is realized. By designing the structure of the valve core and the valve seat, the function of flow proportional adjustment can be realized. However, since the outside flow channels are distributed on the side wall, the inlet and outlet water ports are in the up-down direction, the fluid needs to change direction for many times when flowing through the valve core, which greatly increases the pressure drop of the fluid, wastes energy, seriously affects the service life of the thermal management system and other components, and even causes safety accidents. Moreover, the side wall flow channels of the water valve also make the whole valve body large in size, which is not conducive to the miniaturization and light weight of the thermal management system, affects the arrangement of other components and flow channels on the thermal management system, and further affects the response time and adjustment accuracy of the flow adjustment of the water valve. SUMMARY

[0005] The present application provides a lightweight, intelligent, low-energy, fast-response and high-precision cross-shaped five-way water valve, which has a simple structure and can solve the problems of large size and large fluid resistance of the existing electronic water valve.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a five-way water valve, comprising: an actuator, the actuator having a rotating output end; a valve body assembly, the valve body assembly being arranged on one side of the actuator; the valve body assembly comprising a valve body, a valve seat arranged inside the valve body close to the bottom of the valve body, a sealing gasket arranged between the valve seat and the bottom of the valve body, the inside of the valve body being provided with a valve core closely attached to the valve seat, the bottom end of the valve body being provided with a flow-through hole arranged in a cross shape or in a ring shape, the valve seat being provided with a through hole corresponding to the flow-through hole, the center of the valve core coinciding with the center of the valve body, the end face of the valve core facing the valve seat being divided into a first cavity, a second cavity and a third cavity; one end of the valve body is provided with a valve cover, a stopper is arranged between the inside of the valve cover and the valve core, one end of the stopper is connected with the valve core, and the other end of the stopper is connected with the rotating output end of the actuator, the inside of the stopper is provided with an elastic element abutting against the top of the valve core, and the rotation of the valve core is driven by the actuator to switch the flow between the flow-through holes.

[0007] Preferably, one end of the stopper is provided with a shaft coupling seat penetrating through the valve cover for connecting with the rotating output end of the actuator, and a sealing ring is arranged between the outside of the shaft coupling seat and the valve cover, so as to ensure the sealing performance of the joint between the valve cover and the stopper.

[0008] As preferred, one end of the stopper is connected with the valve core through a key shaft, both sides of the key shaft are provided with a pair of support columns extending towards the valve core, the end of the support column is inserted into the corresponding limiting slot on the valve core, the key shaft plays a major connection role, and the support columns on both sides play a supporting role, so that the stopper can rotate smoothly, and the support column can also limit the elastic member to prevent the elastic member from falling off.

[0009] As preferred, the end edge of the stopper near the valve cover is provided with a protrusion, the inner side end face of the valve cover is provided with a limiting boss, and the limiting boss is arranged on the circular arc path formed by the protrusion as the stopper rotates, so that the rotation angle of the stopper can be limited by the protrusion.

[0010] As preferred, the flow-through holes are arranged in a cross shape, including a fifth flow-through hole e in the middle and first, second, third and fourth flow-through holes arranged around, the first, second and third cavities on the valve core are formed by a first flow baffle g, the fifth flow-through hole e is arranged as a normally open hole, the first cavity is always connected with the fifth flow-through hole e, the top of the first cavity is provided with a balance hole h connected with the inner cavity of the valve body on the upper side of the valve core, the second and third cavities are symmetrically arranged on both sides of the first cavity, the second and third cavities are used to connect the specific adjacent flow-through holes distributed in the circumferential direction, and the flow baffles at the joint of the second and third cavities can proportionally divide the flow of the specific flow channel at a specific angle. Since the cavity structure is simple, the pressure drop and flow loss of the fluid can be greatly reduced, the performance of the water valve can be improved, the energy consumption can be reduced, the precision can be improved, and when the water valve works, the fluid flowing through the center hole will flow out of the balance hole under the action of hydraulic pressure, filling the inside of the valve body, so that the up and down hydraulic pressures of the valve core can be balanced when the water valve works stably, and the valve core can tightly adhere to the valve seat.

[0011] As preferred, the first circular central angle θ of the flow-through hole occupying the bottom end position of the valve body is 45°, the diameter of the flow-through hole is φ, the distance X between the center of the valve body and the center of the flow-through hole is X=1.3(φ+t), and the thickness of the first flow baffle (g) is t, so that the volume of the entire valve body can be minimized.

[0012] As preferred, the second circular central angle α1 of the first cavity is 90°, and the third circular central angle α2 of the second cavity and the fourth circular central angle α3 of the third cavity are both 135°.

[0013] As preferred, the flow-through holes are arranged in a ring shape, including a first flow-through hole, a second flow-through hole, a fourth flow-through hole, a fifth flow-through hole and a third flow-through hole arranged in sequence in the counterclockwise direction along the bottom end of the valve body, the first cavity, the second cavity and the third cavity on the valve core are separated by the second and third flow baffles, the fifth flow-through hole is arranged as a normally open hole, the fifth flow-through hole is always in communication with the third cavity, and the top of the third cavity is provided with a balance hole in communication with the inner cavity of the valve body on the upper side of the valve core, when the water valve is working, the fluid flowing through the center hole will flow out of the balance hole under the action of hydraulic pressure, filling the inside of the valve body, so that the upper and lower hydraulic pressures of the valve core can be balanced when the water valve is working stably, ensuring that the valve core can tightly adhere to the valve seat.

[0014] As preferred, the first central angle θ of the flow-through hole occupying the position of the bottom end of the valve body is 30°, the diameter of the flow-through hole is φ, the distance between the center of the valve body and the center of the flow-through hole is X, X = 1.93φ, and the volume of the entire valve body in this state can be minimized.

[0015] As preferred, the second central angle α1 of the first cavity is 90°, the fourth central angle α3 of the third cavity is 150°, and the third central angle α2 and the fifth central angle α4 on both sides of the second cavity (B) are both 60°.

[0016] As preferred, the actuator 1 includes an upper shell 11, a lower shell 12 located on the lower side of the upper shell 11, and a PCB board 13 located inside the upper shell 11, a motor 14 is installed between the upper shell 11 and the lower shell 12, the output shaft of the motor 14 is connected with the input end of the gear transmission assembly 15, and the output end of the gear transmission assembly 15 is connected with the stopper 23, which is compact in structure and small in volume.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] The outer flow channel is in a cross shape or a ring shape at the bottom of the valve body, which reduces the volume of the valve body, realizes the lightweight of the water valve as a whole, and makes the arrangement of other elements and flow channels on the heat management system more free; the valve core and the valve seat are more miniaturized, can realize switching of multiple different modes, are conducive to integration of the heat management system, and are convenient for arrangement and installation of the water valve on the heat management system; six different modes can be switched at a specific angle, which is conducive to integration of the heat management system and convenient for arrangement and installation of the water valve on the heat management system; the upper end of the stopper cooperates with the actuator, the lower end cooperates with the key groove on the valve core, and a spring is installed between the valve core and the stopper, so as to transmit the torque of the actuator to the valve core, provide a suitable end face specific pressure for the valve core and the valve seat, and ensure the sealing performance and friction performance; the response is more rapid, the cooling is faster, and the safety of the automobile is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Exploded perspective view of the first embodiment of the present application;

[0020] Figure 2 Exploded perspective view of the spool of the first embodiment of the present application;

[0021] Figure 3 Partial sectional view of the present application;

[0022] Figure 4 Partial perspective view of the present application;

[0023] Figure 5 Perspective exploded view of the actuator of the present application;

[0024] Figure 6 Perspective view of the spool of the first embodiment of the present application;

[0025] Figure 7 Parameter diagram of the spool and valve seat cooperation of the first embodiment of the present application;

[0026] Figure 8 Diagram of working mode one of the first embodiment of the present application;

[0027] Figure 9 Diagram of working mode two of the first embodiment of the present application;

[0028] Figure 10 Diagram of working mode three of the first embodiment of the present application;

[0029] Figure 11 Diagram of working mode four of the first embodiment of the present application;

[0030] Figure 12 Diagram of working mode five of the first embodiment of the present application;

[0031] Figure 13 Diagram of working mode six of the first embodiment of the present application;

[0032] Figure 14 Structure diagram of the spool of the second embodiment of the present application;

[0033] Figure 15 Parameter diagram of the spool and valve seat cooperation of the second embodiment of the present application;

[0034] Figure 16 Arrangement diagram of the flow-through holes of the second embodiment of the present application;

[0035] Figure 17 Diagram of working mode one of the second embodiment of the present application;

[0036] Figure 18 Schematic diagram of working mode two of the second embodiment of the application;

[0037] Figure 19 Schematic diagram of working mode three of the second embodiment of the application;

[0038] Figure 20 Schematic diagram of working mode four of the second embodiment of the application;

[0039] Figure 21 Schematic diagram of working mode five of the second embodiment of the application;

[0040] Figure 22 Schematic diagram of working mode six of the second embodiment of the application;

[0041] Reference signs:

[0042] 1, actuator, 11, upper shell, 12, lower shell, 13, PCB board, 14, motor, 15, gear shift assembly, 2, valve body assembly, 21, valve cover, 22, valve body, 23, stopper, 24, sealing ring, 25, elastic element, 26, valve core, 27, valve seat, 28, sealing gasket, 31, shaft coupling seat, 32, key shaft, 33, support column, 34, protrusion, 35, limiting boss, a, first flow-through hole, b, second flow-through hole, c, third flow-through hole, d, fourth flow-through hole, e, fifth flow-through hole, g, first baffle, k, second baffle, l, third baffle, A, first cavity, B, second cavity, C, third cavity, h, balance hole, θ, first central angle, α1, second central angle, α2, third central angle, α3, fourth central angle, α4, fifth central angle, β1, first central included angle, β2, second central included angle, β3, third central included angle, β4, fourth central included angle, β5, fifth central included angle. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application.

[0044] As Figures 1-22As shown, to solve the problems of large size and high fluid resistance in existing electronic water valves, the present invention provides the following technical solution: a five-way water valve, comprising: an actuator 1 having a rotary output end; a valve body assembly 2 disposed on one side of the actuator 1; the valve body assembly 2 including a valve body 22, a valve seat 27 disposed inside the valve body 22 near the bottom of the valve body 22, and a sealing gasket 28 disposed between the valve seat 27 and the bottom of the valve body 22; a valve core 26 disposed inside the valve body 22 in close contact with the valve seat 27; and five flow holes arranged in a cross shape or an annular shape at the bottom end of the valve body 22. The valve seat 27 is provided with a through hole corresponding to the flow hole. The center of the valve core 26 coincides with the center of the valve body 22. The end face of the valve core 26 facing the valve seat 27 is divided into a first cavity A, a second cavity B, and a third cavity C. A valve cover 21 is installed at one end of the valve body 22. A stop member 23 is installed between the inner side of the valve cover 21 and the valve core 26. One end of the stop member 23 is connected to the valve core 26, and the other end is connected to the rotation output end of the actuator 1. An elastic member 25 is provided on the inner side of the stop member 23, which abuts against the top of the valve core 26. The flow between the flow holes is switched by the rotation of the valve core 26 driven by the actuator 1.

[0045] Specifically, the bottom of the valve body 22 is provided with inlet and outlet flow holes, which allows the diameter and volume of the entire valve body assembly 2 to be made relatively small. By driving the rotation of the valve core 26 through the actuator 1, the correspondence between the first cavity A, the second cavity B, and the third cavity C and the five flow holes can be changed. Moreover, the separation part between the first cavity A, the second cavity B, and the third cavity C can play a linear adjustment role.

[0046] By setting the elastic element 25, a suitable end face specific pressure can be provided for the valve core 26 to ensure the sealing performance and friction performance between the valve core 26 and the valve seat 27. The valve core 26 can be set as an inverted bowl shape, with a reliable and compact structure.

[0047] As a specific embodiment of the stop 23, such as Figures 3-4 As shown, one end of the stop 23 is provided with a coupling seat 31 that passes through the valve cover 21 for connection with the rotary output end of the actuator 1. A sealing ring 24 is installed between the outer valve cover 21 of the coupling seat 31 to ensure the sealing of the fit between the valve cover 21 and the stop 23. The end of the coupling seat 31 is provided with a connecting hole, which can quickly connect to the rotary output end of the actuator 1. The sealing ring 24 can be an X-type sealing ring, which has good pressure resistance and wear resistance.

[0048] Additionally, one end of the stop 23 is connected to the valve core 26 via a key shaft 32. A pair of support columns 33 extending towards the valve core 26 are provided on both sides of the key shaft 32. The ends of the support columns 33 are inserted into the corresponding limiting grooves on the valve core 26. The key shaft 32 plays the main connecting role, while the support columns 33 on both sides play an auxiliary supporting role, ensuring that the stop 23 can rotate smoothly. The support columns 33 can also limit the elastic element 25 to prevent the elastic element 25 from falling off. The support columns 33, key shaft 32 and the entire stop 23 are all integral structures with high strength.

[0049] To limit the rotation angle of the stop 23, a protrusion 34 is provided at one edge of the stop 23 near the valve cover 21. A limiting boss 35 is provided on the inner end face of the valve cover 21. The limiting boss 35 is located on the arc path formed by the protrusion 34 as the stop 23 rotates. By providing the protrusion 34, the rotation angle of the stop 23 can be limited. The limiting boss 35 can be set as a fan-shaped structure. By different central angles of the limiting boss 35, the range of rotation angle of the stop 23 can be limited. For example, if the rotation angle range of the valve core 26 is 235°, then the central angle of the protrusion 34 is 10°, and the central angle of the limiting boss 35 is 360-235-10=115°.

[0050] As a specific structure of actuator 1, such as Figure 5 As shown, the actuator 1 includes an upper housing 11, a lower housing 12 located below the upper housing 11, and a PCB board 13 located inside the upper housing 11. A motor 14 is installed between the upper housing 11 and the lower housing 12. The output shaft of the motor 14 is connected to the input end of the gear transmission assembly 15. The output end of the gear transmission assembly 15 is connected to the stop member 23. The structure is compact and the size is small.

[0051] As the first embodiment of the flow-through hole, the flow-through hole is arranged in a cross shape, including a fifth flow-through hole e in the middle and a first flow-through hole a, a second flow-through hole b, a third flow-through hole c, and a fourth flow-through hole d arranged around the middle. The first cavity A, the second cavity B, and the third cavity C on the valve core 26 are formed by a first baffle g. The fifth flow-through hole e is arranged as a normally open hole. The first cavity A is always in communication with the fifth flow-through hole e. The top of the first cavity A is provided with a balance hole h in communication with the inner cavity of the valve body 22 on the upper side of the valve core 26. The second cavity B and the third cavity C are symmetrically arranged on the two sides of the first cavity A. The second cavity B and the third cavity C are used to communicate with the specific adjacent flow-through holes distributed in the circumferential direction. The baffles at the joint of the second cavity B and the third cavity C can proportionally divide the flow of the specific flow channel at a specific angle. Due to the simple structure of the cavity, the pressure drop and flow loss of the fluid can be greatly reduced, the performance of the water valve can be improved, the energy consumption can be reduced, the precision can be improved, and the valve core 26 can be kept balanced in the upper and lower hydraulic pressures when the water valve is working. The fluid flowing through the center hole will flow out of the balance hole under the action of hydraulic pressure, filling the inside of the valve body 22, so that the valve core 26 can tightly adhere to the valve seat 27 when the water valve is working stably, thereby effectively preventing the leakage of the fluid.

[0052] In addition, the first cavity A is in the shape of a gourd, and the second cavity B and the third cavity C are in the shape of a fan. The fan-shaped second cavity B and the third cavity C can have a large enough area and a central angle. The side wall of the gourd-shaped first cavity A is smooth, and the flow resistance is small, so that the valve core 26 can keep the fifth flow-through hole e and another specific flow-through hole in communication in the proportional mode.

[0053] The side wall transition angles of the first cavity A, the second cavity B, and the third cavity C are all circular arc transition angles. The top surface and the transition angles of the side wall of the first cavity A, the second cavity B, and the third cavity C are all circular arc transition angles. When the fluid enters the first cavity A, the second cavity B, and the third cavity C, it will first impact the top surface. The circular arc transition angle can provide sufficient guidance and buffering, greatly reducing the pressure drop and flow loss of the fluid and improving the performance of the water valve and reducing energy consumption.

[0054] According to the preset mode requirements, the flow-through holes are most closely distributed under the requirements of the flow-through hole diameter and the valve core thickness, such as Figures 6-7As shown, the fifth flow hole e is arranged at the center of the valve seat 27, and the other four holes are evenly distributed in four orthogonal directions. Under the limitation of the preset mode, the central angle θ of each flow hole satisfies θ≤45°. If the diameter of each flow hole is φ, the distance x of the side flow hole from the center can be calculated as x≥(φ / 2) / sin(45° / 2)≈1.3φ. In this state, the volume of the entire valve body can be minimized. If the thickness t of the flow blocking plate of the valve core 26 is considered, x≥1.3(φ+t). When x=1.3(φ+t), the volume of the entire valve body can be minimized.

[0055] As shown in the preset mode, Figure 7 the second central angle α1 of the first cavity A is 90°, and the third central angle α2 of the second cavity B and the fourth central angle α3 of the third cavity C are both 135°.

[0056] The edge of the valve seat 27 is provided with at least one limiting groove, which matches the corresponding protruding structure inside the valve body 22, so as to effectively prevent the valve seat 27 from rotating and prevent the valve seat 27 from being dislocated with the flow hole of the valve body 22.

[0057] In this embodiment, there are six modes, and the rotation angle of the valve core 26 is 0°-235°. At the beginning, the angle of the valve core is at 0° position, as shown in Figures 8-13 the specific operation is shown in Table 1 as follows:

[0058] Table 1: Working mode table of the first embodiment

[0059]

[0060]

[0061] In the table, c-e, d-e, a-c and b-c mean that different flow holes are connected, such as c-e means that the third flow hole c and the fifth flow hole e are connected, and working mode one to working mode six correspond to the following Figures 8-13 .

[0062] When the water valve starts to work, the valve core 26 is rotated under the driving of the motor, so that different flow channels are connected to achieve the preset mode. The flow medium flows into the preset inlet flow channel, and the flow direction and flow rate of different flow channels are adjusted under the flow channel mode switching of the valve core, and then flows out from the outlet flow channel, so as to finally achieve the temperature regulation effect of the thermal management system.

[0063] As the second embodiment of the flow-through hole, the flow-through hole is arranged in a ring shape, including the first flow-through hole a, the second flow-through hole b, the fourth flow-through hole d, the fifth flow-through hole e and the third flow-through hole c arranged in the counterclockwise direction along the bottom end of the valve body 1 in sequence, the first cavity A, the second cavity B and the third cavity C on the valve core 26 are separated by the second baffle k and the third baffle l, the fifth flow-through hole e is arranged as a normally open hole, the fifth flow-through hole e is always in communication with the third cavity C, the top of the third cavity C is provided with a balance hole h in communication with the inner cavity of the valve body 22 on the upper side of the valve core 26, when the water valve is working, the fluid flowing through the center hole will flow out of the balance hole under the action of hydraulic pressure, filling the inside of the valve body, so that the up and down hydraulic pressure of the valve core can be balanced when the water valve is working stably, ensuring that the valve core can tightly adhere to the valve seat.

[0064] Specifically, as shown in the figure, Figure 14 the first cavity A and the third cavity C are both fan-shaped, the second cavity B is located between the first cavity A and the third cavity C and is disc-shaped, the fan-shaped first cavity A and the third cavity C are beneficial to the switching and adjustment of the flow-through hole, and the disc-shaped second cavity B can connect two flow-through holes far away. Among them, as shown in the figure, Figure 15 the second central angle α1 of the first cavity A is 90°, the fourth central angle α3 of the third cavity C is 150°, and the third central angle α2 and the fifth central angle α4 on both sides of the second cavity B are both 60°.

[0065] According to the switching needs of the five flow-through holes and six modes, the first central angle θ occupied by each flow-through hole satisfies θ≤30°, when the first central angle θ is 30°, the diameter of the flow-through hole is φ, and the distance X between the center of the valve body 22 and the center of the flow-through hole satisfies the formula x≥(φ / 2) / sin(30° / 2)≈1.93φ, so when X=1.93φ, the volume of the entire valve body 22 in this state can be minimized.

[0066] In actual application, the second baffle k can pass through the center of the valve core 26, a center hole can be formed in the middle of the second baffle k, which can be matched with the center hole on the valve seat 27, and the two center holes are connected by a bolt, which serves as the rotation center of the valve core 26 and has a guiding effect.

[0067] As shown in the figure, Figure 15As shown, in the embodiment, the second central angle of the first cavity A is α1=90°, the fourth central angle of the third cavity C is α3=150°, and the third central angle α2 and the fifth central angle α4 on both sides of the second cavity B are 60°. In addition, the first central angle between the first flow-through hole a and the second flow-through hole b is β1=60°, the second central angle between the first flow-through hole a and the third flow-through hole c is β2=60°, the third central angle between the second flow-through hole b and the fourth flow-through hole d is β3=60°, the fourth central angle between the third flow-through hole c and the fifth flow-through hole e is β4=90°, and the fifth central angle between the fourth flow-through hole d and the fifth flow-through hole e is β5=90°. The thickness of the second baffle k and the third baffle l is t, and each central angle needs to be reduced by the thickness t of the second baffle k and the third baffle l when being set.

[0068] In the embodiment, there are six modes, and the rotation angle of the valve core 26 is 0°-130°. At the beginning, the valve core angle is at the 0° position, as shown in Figures 17-22 As shown, the specific values are shown in Table 2 as follows:

[0069] Table 2: Working mode schematic table of the second embodiment

[0070]

[0071] In the table, c-e, d-e, a-c and b-c mean that different flow-through holes are connected, for example, c-e means that the third flow-through hole c and the fifth flow-through hole e are connected, and working mode one to working mode six correspond to the Figures 17-22 As shown,

[0072] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0073] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated or the number of the technical features indicated. Therefore, the features defined as "first" and "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0074] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be internal communication of two elements or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0075] In addition, the technical solutions among various embodiments of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the present application.

Claims

1. A five-way water valve, characterized in that, include: Actuator (1), said actuator (1) having a rotary output end; Valve body assembly (2), which is disposed on one side of actuator (1); The valve body assembly (2) includes a valve body (22), a valve seat (27) disposed inside the valve body (22) near the bottom of the valve body (22), and a sealing gasket (28) disposed between the valve seat (27) and the bottom of the valve body (22). The valve body (22) has a valve core (26) that is in close contact with the valve seat (27). The bottom end of the valve body (22) has five flow holes arranged in a ring. The valve seat (27) has a through hole corresponding to the flow holes. The center of the valve core (26) coincides with the center of the valve body (22). The end face of the valve core (26) facing the valve seat (27) is divided into a first cavity (A), a second cavity (B), and a third cavity (C). A valve cover (21) is installed at one end of the valve body (22). A stop (23) is installed between the inner side of the valve cover (21) and the valve core (26). One end of the stop (23) is connected to the valve core (26), and the other end is connected to the rotation output end of the actuator (1). An elastic element (25) is provided on the inner side of the stop (23) to abut against the top of the valve core (26). The flow between the flow holes is switched by driving the rotation of the valve core (26) through the actuator (1). The flow holes are arranged in a ring, including a first flow hole (a), a second flow hole (b), a fourth flow hole (d), a fifth flow hole (e), and a third flow hole (c) arranged in a counterclockwise direction along the bottom end of the valve body (22). The first cavity (A), the second cavity (B), and the third cavity (C) on the valve core (26) are separated by a second baffle plate (k) and a third baffle plate (l). The fifth flow hole (e) is set as a normally open hole. The fifth flow hole (e) is always connected to the third cavity (C). The top of the third cavity (C) is provided with a balance hole (h) that is connected to the inner cavity of the valve body (22) on the upper side of the valve core (26). The first central angle θ of the flow hole occupying the bottom position of the valve body (22) is 30°, and the diameter of the flow hole is φ. Then the distance between the center of the valve body (22) and the center of the flow hole is X, X=1.93φ; The second central angle α1 of the first cavity (A) is 90°, the fourth central angle α3 of the third cavity (C) is 150°, and the third central angle α2 and the fifth central angle α4 on both sides of the second cavity (B) are both 60°. The first center angle between the first flow hole (a) and the second flow hole (b) is β1=60°, the second center angle between the first flow hole (a) and the third flow hole (c) is β2=60°, the third center angle between the second flow hole (b) and the fourth flow hole (d) is β3=60°, the fourth center angle between the third flow hole (c) and the fifth flow hole (e) is β4=90°, and the fifth center angle between the fourth flow hole (d) and the fifth flow hole (e) is β5=90°.

2. The five-way water valve according to claim 1, characterized in that: One end of the stop (23) is provided with a coupling seat (31) that passes through the valve cover (21) and is connected to the rotary output end of the actuator (1). A sealing ring (24) is installed between the outer valve cover (21) of the coupling seat (31). One end of the stop (23) is connected to the valve core (26) through a key shaft (32). A pair of support columns (33) extending towards the valve core (26) are provided on both sides of the key shaft (32). The ends of the support columns (33) are inserted into the corresponding limiting grooves on the valve core (26).

3. The five-way water valve according to claim 1, characterized in that: The stop (23) has a protrusion (34) at one end edge near the valve cover (21), and a limiting boss (35) is provided on the inner end face of the valve cover (21). The limiting boss (35) is located on the arc path formed by the protrusion (34) as the stop (23) rotates.

4. The five-way water valve according to claim 1, characterized in that: The actuator (1) includes an upper housing (11), a lower housing (12) located below the upper housing (11), and a PCB board (13) located inside the upper housing (11). A motor (14) is installed between the upper housing (11) and the lower housing (12). The output shaft of the motor (14) is connected to the input end of the gear transmission assembly (15), and the output end of the gear transmission assembly (15) is connected to the stop (23).

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