CN115949774A - Five-way water valve - Google Patents

Abstract

The invention discloses a five-way water valve, which comprises: an actuator having a rotary output; the valve body assembly is arranged on one side of the actuator; the valve body assembly comprises a valve body and a valve seat arranged in the valve body and close to the bottom of the valve body, a valve core tightly attached to the valve seat is arranged in the valve body, the bottom end of the valve body is provided with a cross-shaped or annular arrangement flow hole, a through hole corresponding to the flow hole is formed in the valve seat, the center of the valve core is superposed with the center of the valve body, and the end face, facing the valve seat, of the valve core is divided into a first cavity, a second cavity and a third cavity; the valve cover is installed at one end of the valve body, a stop piece is installed between the inner side of the valve cover and the valve core, one end of the stop piece is connected with the valve core, the other end of the stop piece is connected with the rotary output end of the actuator, and an elastic piece which is abutted against the top of the valve core is arranged on the inner side of the stop piece. The electronic water valve is simple in structure, and can solve the problems that the existing electronic water valve is large in size and large in fluid resistance.

Description

Five-way water valve

Technical Field

The invention relates to the field of water valves, in particular to a light-weight, intelligent, low-energy-consumption, quick-response and high-precision five-way water valve.

Background

In recent years, with the rapid development of new energy automobile industry, the thermal management system of the new energy automobile is more and more integrated and intelligent. Compared with the traditional fuel oil automobile, the new energy automobile has a greatly different thermal management system due to different driving forms and energy architectures. The driving motor of the new energy automobile requires high power and high rotating speed, so that a large amount of heat can be generated in the high-speed driving process, and the performance and the service life of the motor can be seriously influenced if the heat is not taken away in time; in order to improve the cruising ability, automobile manufacturers often select the power battery with high energy density and high discharge rate, but the battery generates a large amount of heat in the use process due to the excessively high energy density and discharge rate, the service life of the battery is influenced due to the excessively high temperature, and safety accidents are easily caused. The new energy automobile heat management system is complex, the temperature control requirements of different working systems are different, and therefore the flow rates of cooling liquid flowing to the working systems are different. Therefore, the new energy automobile needs an efficient thermal management system to ensure the stable operation of the automobile, and the temperature control problem of the new energy automobile faces a great challenge. With the stricter policy of energy conservation and emission reduction, the traditional automobile thermostat has the defects of 'response delay' and 'hysteresis characteristic', and the like, has poor circulation, is difficult to accurately control the flow, has low heat management efficiency, and cannot meet the high requirement of a new energy automobile on temperature control. Therefore, the thermal management system of the traditional automobile is gradually optimized, and the electronic water valve is used for replacing the traditional thermostat to regulate the cooling liquid on part of automobile models.

An electronic water valve is a novel cooling liquid flow regulating valve in a new energy automobile heat management system, and is similar to a thermostat of a traditional fuel vehicle in functional action and working principle. The main function is to adaptively adjust the flow rate of cooling liquid of each pipeline according to the temperature change of different working parts, and ensure that batteries, motors and the like are in the optimal working temperature environment, so as to achieve the purposes of saving energy, reducing emission and improving the energy utilization rate.

At present, for the structural design of an electronic five-way water valve, a column valve structure is usually adopted, outlet flow channels on the outer side of the column valve are distributed on the side wall, a flow channel is also arranged on a middle valve core, and the purpose of switching different modes of a valve body can be realized by switching the flow channel, changing the flow direction and adjusting the flow rate through rotating the valve core. The function of flow proportion regulation can be realized by designing the structures of the valve core and the valve seat. However, since the outer runners are distributed on the side wall and the water inlet and outlet are in the vertical direction, the fluid needs to be reversed for many times when flowing through the valve core, thereby greatly increasing the pressure drop of the fluid, wasting energy, seriously affecting the service life of the thermal management system and other elements, and even causing safety accidents. In addition, the side wall flow channel of the water valve also enables the whole valve body to be large in size, so that the miniaturization and the light weight of a thermal management system are not facilitated, and the arrangement of other elements and the flow channel on the thermal management system is influenced; and the response time and the adjustment precision of the flow adjustment of the water valve are influenced greatly by the large volume.

Disclosure of Invention

The invention provides a light-weight, intelligent, low-energy-consumption, quick-response and high-precision cross five-way water valve which is simple in structure and can solve the problems of large volume and large fluid resistance of the existing electronic water valve.

In order to achieve the purpose, the invention provides the following technical scheme: a five-way water valve comprising: an actuator having a rotary output; the valve body assembly is arranged on one side of the actuator; the valve body assembly comprises a valve body, a valve seat and a sealing gasket, wherein the valve seat is arranged in the valve body and close to the bottom of the valve body, the sealing gasket is arranged between the valve seat and the bottom of the valve body, a valve core is arranged in the valve body and is tightly attached to the valve seat, the bottom end of the valve body is cross-shaped or annularly arranged and provided with a circulation hole, a through hole corresponding to the circulation hole is formed in the valve seat, the center of the valve core is overlapped with the center of the valve body, and the end face, facing the valve seat, of the valve core is divided into a first cavity, a second cavity and a third cavity; the valve comprises a valve body, a valve core and a retainer, wherein the valve body is provided with a valve cover at one end, the retainer is arranged between the inner side of the valve cover and the valve core, one end of the retainer is connected with the valve core, the other end of the retainer is connected with the rotary output end of an actuator, an elastic piece which is propped against the top of the valve core is arranged on the inner side of the retainer, and the actuator drives the valve core to rotate to switch the circulation between circulation holes.

Preferably, one end of the stop piece is provided with a coupling seat which penetrates through the valve cover and is connected with the rotating output end of the actuator, and a sealing ring is arranged between the valve covers on the outer sides of the coupling seat, so that the sealing performance of the matching part of the valve cover and the stop piece can be ensured.

Preferably, one end of the retainer is connected with the valve core through a key shaft, a pair of support columns extending towards the direction of the valve core are arranged on two sides of the key shaft, the end parts of the support columns are inserted into corresponding limiting grooves on the valve core, the key shaft plays a main connecting role, the support columns on two sides play an auxiliary supporting role, the retainer can be ensured to rotate stably, and the support columns can also limit the elastic piece to prevent the elastic piece from falling off.

Preferably, a protruding block is arranged at the edge of one end of the stop piece close to the valve cover, a limit boss is arranged on the end face of the inner side of the valve cover, the limit boss is arranged on an arc path formed by the protruding block along with the rotation of the stop piece, and the rotation angle of the stop piece can be limited by arranging the protruding block.

Preferably, the flow holes are arranged in a cross shape and comprise a fifth flow hole e positioned in the middle and a first flow hole, a second flow hole, a third flow hole and a fourth flow hole d which are arranged on the periphery, the first cavity, the second cavity and the third cavity on the valve core are formed by separating a first flow baffle plate g, the fifth flow hole e is a normally open hole, the first cavity is always communicated with the fifth flow hole e, a balance hole h communicated with the inner cavity of the valve body on the upper side of the valve core is arranged at the top of the first cavity, the second cavity and the third cavity are symmetrically arranged on two sides of the first cavity and are used for communicating specific adjacent flow holes which are circumferentially distributed, the flow baffle plate at the junction of the second cavity and the third cavity can divide the flow of a specific flow channel in proportion under a specific angle, and the cavity has a simple structure, so that the pressure drop and the close flow loss of fluid can be greatly reduced, the performance of a high-water valve can be improved, the precision of the water valve can be improved, the flow of the fluid flowing through the balance hole under the action of the balance of the valve body when the valve core works, and the valve can be stably filled with the hydraulic valve seat, thereby ensuring that the valve can be stably discharged from the valve.

Preferably, the first central angle θ of the flow hole occupying the bottom end position of the valve body is 45 °, the diameter of the flow hole is Φ, the distance X between the center of the valve body and the center of the flow hole, the thickness of the first baffle plate (g) is t, X =1.3 (Φ + t), and the volume of the entire valve body in this state can be minimized.

Preferably, the second central angle α 1 of the first cavity is =90 °, and the third central angle α 2 of the second cavity and the fourth central angle α 3 of the third cavity are both 135 °.

Preferably, the flow holes are annularly arranged and comprise 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 which are sequentially arranged along the counterclockwise direction of the bottom end of the valve body, the first cavity, the second cavity and the third cavity on the valve core are formed by separating a second flow baffle plate and a third flow baffle plate, the fifth flow through hole is a normally open hole and is always communicated with the third cavity, a balance hole communicated with the inner cavity of the valve body on the upper side of the valve core is arranged at the top of the third cavity, and when the water valve works, fluid flowing through the center hole can flow out of the balance hole upwards under the hydraulic action to fill the inside of the valve body, so that the upper hydraulic pressure and the lower hydraulic pressure of the valve core can be kept balanced when the water valve works stably, and the valve core can be ensured to be tightly attached to the valve seat.

Preferably, the first central angle θ of the flow hole occupying the bottom end position of the valve body is 30 °, the diameter of the flow hole is Φ, the distance between the center of the valve body and the center of the flow hole is X, and X =1.93 Φ, and the volume of the entire valve body in this state can be minimized.

Preferably, the second central angle α 1 of the first cavity is =90 °, the fourth central angle α 3 of the third cavity is =150 °, and the third central angle α 2 and the fifth central angle α 4 of both sides of the second cavity (B) are 60 °.

Preferably, the actuator 1 comprises an upper housing 11, a lower housing 12 located at the lower side of the upper housing 11, and a PCB 13 located inside the upper housing 11, wherein a motor 14 is installed between the upper housing 11 and the lower housing 12, an output shaft of the motor 14 is connected with an input end of a gear change assembly 15, and an output end of the gear change assembly 15 is connected with a stop member 23, so that the actuator is compact in structure and small in size.

Compared with the prior art, the invention has the beneficial effects that:

the outer side flow channels are distributed at the bottom of the valve body in a cross shape or an annular shape, so that the volume of the valve body is reduced, the whole light weight of the water valve is realized, and other elements and flow channels on the heat management system are more freely arranged; the valve core and the valve seat are more miniaturized, the switching of various different modes can be realized, the integration of a thermal management system is facilitated, and the arrangement and the installation of a water valve on the thermal management system are facilitated; the switching of six different modes can be realized at a specific angle, which is beneficial to the integration of a thermal management system and is convenient for the arrangement and installation of the water valve on the thermal management system; the upper end of the stop piece is matched with the actuator, the lower end of the stop piece is matched with the key groove on the valve core, the stop piece is used for transmitting the torque of the actuator for the valve core, and a spring is arranged between the valve core and the stop piece to provide proper end face specific pressure for the valve core and the valve seat, so that the sealing performance and the friction performance of the valve core and the valve seat are ensured; the response is quicker, the cooling is quicker, and the safety of the automobile is improved.

Drawings

Fig. 1 is an exploded perspective view of a first embodiment of the present invention;

fig. 2 is a perspective exploded view of a valve cartridge according to a first embodiment of the present invention;

FIG. 3 is a partial cross-sectional structural view of the present invention;

FIG. 4 is a partial perspective view of the present invention;

FIG. 5 is a perspective exploded view of the actuator of the present invention;

FIG. 6 is a perspective view of the valve cartridge according to the first embodiment of the present invention;

FIG. 7 is a parametric illustration of the valve element and valve seat cooperation of the first embodiment of the present invention;

FIG. 8 is a schematic diagram of a first operation mode of the first embodiment of the present invention;

FIG. 9 is a diagram illustrating a second operation mode of the first embodiment of the present invention;

FIG. 10 is a schematic view of a third operating mode of the first embodiment of the present invention;

FIG. 11 is a diagram illustrating a fourth operation mode of the first embodiment of the present invention;

FIG. 12 is a schematic illustration of a fifth mode of operation of the first embodiment of the present invention;

FIG. 13 is a sixth exemplary operational mode of the present invention;

FIG. 14 is a valve cartridge structural view of a second embodiment of the present invention;

FIG. 15 is a parametric illustration of the valve element and valve seat cooperation of the second embodiment of the present invention;

FIG. 16 is a schematic view of a flow aperture arrangement of a second embodiment of the present invention;

FIG. 17 is a schematic illustration of a first mode of operation of the second embodiment of the present invention;

FIG. 18 is a schematic view of a second mode of operation of the second embodiment of the present invention;

FIG. 19 is a schematic illustration of a third mode of operation of the second embodiment of the present invention;

FIG. 20 is a fourth exemplary operating mode of the second embodiment of the present invention;

FIG. 21 is a schematic illustration of a fifth mode of operation of the second embodiment of the present invention;

FIG. 22 is a schematic illustration of a sixth mode of operation of the second embodiment of the present invention;

reference numerals:

1. the valve comprises an actuator, 11, an upper shell, 12, a lower shell, 13, a PCB, 14, a motor, 15, a gear speed change component, 2, a valve body assembly, 21, a valve cover, 22, a valve body, 23, a stop piece, 24, a sealing ring, 25, an elastic piece, 26, a valve core, 27, a valve seat, 28, a sealing gasket, 31, a coupling seat, 32, a key shaft, 33, a support column, 34, a bump, 35, a limit boss, a first flow through hole, B, a second flow through hole, C, a third flow through hole, d, a fourth flow hole, e, a fifth flow hole, g, a first flow baffle, k, a second flow baffle, l, a third flow baffle, A, a first cavity, B, a second cavity, C, a third cavity, h, a balance hole, theta, a first central angle, alpha 1, a second central angle, alpha 2, a third central angle, alpha 3, a fourth central angle, alpha 4, a fifth central angle, beta 1, a first central angle, beta 2, beta 3, a fourth central angle, beta 5, a fifth central angle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1 to 22, in order to solve the problems of large volume and large fluid resistance of the conventional electronic water valve, the invention provides the following technical scheme: a five-way water valve comprising: the actuator 1, the said actuator 1 has rotary output end; the valve body assembly 2 is arranged on one side of the actuator 1; the valve body assembly 2 comprises a valve body 22, a valve seat 27 arranged inside the valve body 22 and close to the bottom of the valve body 22, and a sealing gasket 28 arranged between the valve seat 27 and the bottom of the valve body 22, wherein a valve core 26 tightly attached to the valve seat 27 is arranged inside the valve body 22, the bottom end of the valve body 22 is provided with 5 circulation holes in a cross shape or annular arrangement manner, the valve seat 27 is provided with a through hole corresponding to the circulation holes, the center of the valve core 26 is overlapped with the center of the valve body 22, and the end surface 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; the valve comprises a valve body 22, a valve cover 21, a stop piece 23, an elastic piece 25 and an actuator 1, wherein the valve cover 21 is installed at one end of the valve body 22, the stop piece 23 is installed between the inner side of the valve cover 21 and a valve core 26, one end of the stop piece 23 is connected with the valve core 26, the other end of the stop piece 23 is connected with the rotary output end of the actuator 1, the elastic piece 25 is abutted against the top of the valve core 26, and the actuator 1 drives the valve core 26 to rotate to switch the circulation between circulation holes.

Specifically, the bottom of the valve body 22 is provided with inlet and outlet flow holes, so that the diameter and volume of the whole valve body assembly 2 can be relatively small, the actuator 1 drives the valve core 26 to rotate, the corresponding relation between the first cavity a, the second cavity B, the third cavity C and the 5 flow holes can be changed, and the separation parts among the first cavity a, the second cavity B and the third cavity C can perform a linear adjustment function.

The elastic element 25 can provide proper end face specific pressure for the valve core 26 to ensure the sealing performance and the friction performance between the valve core 26 and the valve seat 27, and the valve core 26 can be arranged into an inverted bowl shape, so that the structure is reliable and compact.

As a specific embodiment of the stop member 23, as shown in fig. 3-4, one end of the stop member 23 is provided with a coupling seat 31 penetrating through the valve cover 21 for connecting with the rotation output end of the actuator 1, a sealing ring 24 is installed between the outer valve covers 21 of the coupling seat 31 to ensure the sealing performance of the fitting portion between the valve cover 21 and the stop member 23, the end of the coupling seat 31 is provided with a connecting hole for fast connecting with the rotation output end of the actuator 1, and the sealing ring 24 can be an X-shaped sealing ring and has good pressure resistance and wear resistance.

In addition, one end of the stopper 23 is connected with the valve core 26 through a key shaft 32, a pair of support columns 33 extending towards the direction of the valve core 26 are arranged on two sides of the key shaft 32, the end parts of the support columns 33 are inserted into corresponding limiting grooves on the valve core 26, the key shaft 32 plays a main connecting role, the support columns 33 on the two sides play an auxiliary supporting role, the stopper 23 can be ensured to rotate stably, the support columns 33 can limit the elastic element 25, the elastic element 25 is prevented from falling off, and the support columns 33, the key shaft 32 and the whole stopper 23 are of an integrated structure and have relatively high strength.

In order to limit the rotation angle of the stop member 23, a protrusion 34 is disposed at an edge of the stop member 23 near one end of the valve cover 21, a limit boss 35 is disposed on an end surface of the inner side of the valve cover 21, the limit boss 35 is disposed on an arc path formed by the protrusion 34 along with the rotation of the stop member 23, the rotation angle of the stop member 23 can be limited by disposing the protrusion 34, the limit boss 35 can be disposed in a fan-shaped structure, and the limitation of the rotation angle range of the stop member 23 can be realized by the difference of the central angles of the limit boss 35, for example, if the rotation angle range of the valve core 26 is 235 °, the central angle of the protrusion 34 is 10 °, and the central angle of the limit boss 35 is 360-235-10=115 °.

As a specific structure of the actuator 1, as shown in fig. 5, the actuator 1 includes an upper casing 11, a lower casing 12 located at a lower side of the upper casing 11, and a PCB 13 located inside the upper casing 11, a motor 14 is installed between the upper casing 11 and the lower casing 12, an output shaft of the motor 14 is connected to an input end of a gear shift assembly 15, and an output end of the gear shift assembly 15 is connected to a stopper 23, so that the actuator is compact in structure and small in size.

As a first embodiment of the flow holes, the flow holes are arranged in a cross shape, and include a fifth flow hole e located in the middle, and a first flow hole a, a second flow hole B, a third flow hole C, and a fourth flow hole d arranged around the fifth flow hole e, the first cavity a, the second cavity B, and the third cavity C on the valve core 26 are formed by a first flow blocking plate g, wherein the fifth flow hole e is set as a normally open hole, the first cavity a is always communicated with the fifth flow hole e, the top of the first cavity a is provided with a balance hole h communicated 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 both sides of the first cavity a, the second cavity B and the third cavity C are used for communicating with specific adjacent flow holes distributed in the circumferential direction, the flow blocking plate at the junction of the second cavity B and the third cavity C can proportionally divide the flow of the specific flow channel at a specific angle, and the flow blocking plate at a simple cavity structure can greatly reduce the performance of the flow and the circumferentially distributed specific adjacent flow holes, thereby increasing the pressure drop of the working fluid, and improving the working fluid, and preventing the leakage of the valve core 26, and improving the working fluid, thereby, and stabilizing the pressure drop of the valve body, and improving the working fluid, and preventing the working fluid from leaking in the working fluid, and the working fluid from leaking the valve body, and the valve, and improving the working fluid.

In addition, the first cavity A is in a gourd shape, the second cavity B and the third cavity C are both in a fan shape, the fan-shaped second cavity B and the fan-shaped third cavity C can have large enough areas and central angles, the side wall of the gourd-shaped first cavity A is smooth and small in flow resistance, and the fifth circulation hole e and another specific circulation hole can be always kept communicated under the proportional mode of the valve core 26.

The lateral wall corner of first cavity A, second cavity B and third cavity C be the circular arc corner transition simultaneously the top surface of first cavity A, second cavity B and third cavity C and the corner of lateral wall be the circular arc corner transition, can impact the top surface earlier when the fluid enters into first cavity A, second cavity B and third cavity C, can carry out abundant direction buffering through circular arc corner transition, can reduce fluidic pressure drop and flow loss greatly, improve the performance of water valve, reduce the energy consumption.

According to the preset mode requirement, under the condition of meeting the requirements of the flow aperture, the valve core thickness and the like, the flow holes are distributed most closely, as shown in fig. 6-7, the fifth flow hole e is arranged at the center of the valve seat 27, the other four holes are uniformly distributed in four orthogonal directions, under the limitation of the preset mode, the central angle theta occupied by each flow hole meets the condition that theta is not more than 45 degrees, if each flow aperture is phi, the distance x between the flow hole on the side edge and the center of the circle is not less than (phi/2)/sin (45 DEG/2) and is approximately 1.3 phi, and the volume of the whole valve body can be minimized under the condition. If the thickness t of the baffle plate of the valve core 26 is considered, x is more than or equal to 1.3 (phi + t). When x =1.3 (Φ + t), the volume of the entire valve body can be minimized.

Under the requirement of the preset mode, as shown in fig. 7, the second central angle α 1 of the first cavity a is =90 °, and the third central angle α 2 of the second cavity B and the fourth central angle α 3 of the third cavity C are both 135 °.

The edge of the valve seat 27 is provided with at least one limiting groove, and the limiting groove is matched with a corresponding bulge structure in the valve body 22, so that the valve seat 27 can be effectively prevented from rotating, and the dislocation of the flow hole of the valve seat 27 and the flow hole of the valve body 22 can be prevented.

In the present embodiment, there are 6 modes, the rotation angle of the valve core 26 is 0 ° to 235 °, and the valve core angle is at 0 ° at the beginning, as shown in fig. 8 to 13, and specifically shown in table 1 below:

table 1: schematic table of operation mode of the first embodiment

Wherein, c-e, d-e, a-c and b-c in the table mean that different circulation holes are communicated, for example, c-e means that a third circulation hole c is communicated with a fifth circulation hole e, and the first working mode to the sixth working mode respectively correspond to the figures 8-13.

When the water valve starts to work, the valve core 26 is driven by the motor to rotate, so that different flow channels are communicated to reach a preset mode, a circulating medium flows in from a preset inlet flow channel, flow direction and flow regulation of the different flow channels are realized under the switching of the flow channel modes of the valve core, and then the circulating medium flows out from an outlet flow channel, and finally the temperature regulation effect of the heat management system is achieved.

The second embodiment is a flow hole, the flow holes are annularly arranged, and include 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, which are sequentially arranged along the counterclockwise direction of the bottom end of the valve body 1, the first cavity a, the second cavity B and the third cavity C on the valve core 26 are formed by separating a second baffle plate k and a third baffle plate l, the fifth flow hole e is set to be a normally open hole, the fifth flow hole e is always communicated with the third cavity C, the top of the third cavity C is provided with a balance hole h communicated with the inner cavity of the valve body 22 on the upper side of the valve core 26, when the water valve works, fluid flowing through the center hole flows out of the balance hole upwards under the hydraulic action to fill the inside of the valve body, so that the upper hydraulic pressure and the lower hydraulic pressure of the valve core can be kept balanced when the water valve works stably, and the valve core can be ensured to be tightly attached to the valve seat.

Specifically, as shown in fig. 14, the first cavity a and the third cavity C are both in a fan shape, the second cavity B is located between the first cavity a and the third cavity C and is in a butterfly shape, the first cavity a and the third cavity C are in a fan shape, which is beneficial to switching and adjusting the convection through holes, and the dish-shaped second cavity B can enable two far-away circulation holes to be formed. As shown in fig. 15, the second central angle α 1 of the first cavity a is not less than 90 °, the fourth central angle α 3 of the third cavity C is not less than 150 °, and the third central angle α 2 and the fifth central angle α 4 of the second cavity B are both 60 °.

According to the switching requirements of five circulation holes and 6 modes, the first central angle theta occupied by each circulation hole satisfies that theta is less than or equal to 30 degrees, when the first central angle theta is 30 degrees and the diameter of the circulation hole is phi, the distance X between the center of the valve body 22 and the center of the circulation hole is 1.93 phi according to the formula X is greater than or equal to (phi/2)/sin (30/2), so when X =1.93 phi, the volume of the whole valve body 22 in the state can be minimized.

In the practical application process, the second flow baffle k may pass through the center of the valve core 26, a central hole may be formed in the middle of the second flow baffle k, and the central hole may be matched with the central hole in the valve seat 27, and the two central holes are connected by a plug pin and used as the rotation center of the valve core 26, so as to have a guiding function.

As shown in fig. 15, in the present embodiment, the second central angle α 1 of the first cavity a is =90 °, the fourth central angle α 3 of the third cavity C is =150 °, and the third central angle α 2 and the fifth central angle α 4 of the second cavity B on both sides are 60 °. In addition, a first circle center included angle β 1 between the first circulation hole a and the second circulation hole b is =60 °, a second circle center included angle β 2 between the first circulation hole a and the third circulation hole c is =60 °, a third circle center included angle β 3 between the second circulation hole b and the fourth circulation hole d is =60 °, a fourth circle center included angle β 4 between the third circulation hole c and the fifth circulation hole e is =90 °, and a fifth circle center included angle β 5 between the fourth circulation hole d and the fifth circulation hole e is =90 °. The thickness of second fender flow board k and third fender flow board l is t, and the thickness t that second fender flow board k and third fender flow board l need be subtracted to each centre of a circle contained angle when setting up.

In this embodiment, there are 6 modes, the rotation angle of the spool 26 is 0 ° to 130 °, and the spool angle is at the 0 ° position at the beginning, as shown in fig. 17 to 22, and specifically as shown in table 2 below:

table 2: schematic table of operation mode of the second embodiment

Wherein c-e, d-e, a-c and b-c in the table mean that different circulation holes are communicated, for example, c-e means that a third circulation hole c is communicated with a fifth circulation hole e, the first working mode to the sixth working mode respectively correspond to those shown in figures 17-22,

it should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims (10)

1. A five-way water valve, comprising:

the actuator (1), the said actuator (1) has rotary output end;

the valve body assembly (2), the said valve body assembly (2) is set up in one side of the actuator (1);

the valve body assembly (2) comprises a valve body (22), a valve seat (27) arranged inside the valve body (22) and close to the bottom of the valve body (22), and a sealing gasket (28) arranged between the valve seat (27) and the bottom of the valve body (22), wherein a valve core (26) tightly attached to the valve seat (27) is arranged inside the valve body (22), the bottom end of the valve body (22) is provided with 5 circulation holes in a cross shape or annular arrangement, through holes corresponding to the circulation holes are formed in the valve seat (27), the center of the valve core (26) is superposed with the center of the valve body (22), and the end face, facing the valve seat (27), of the valve core (26) is divided into a first cavity (A), a second cavity (B) and a third cavity (C);

the valve comprises a valve body (22) and is characterized in that a valve cover (21) is installed at one end of the valve body (22), a stop piece (23) is installed between the inner side of the valve cover (21) and a valve core (26), one end of the stop piece (23) is connected with the valve core (26), the other end of the stop piece is connected with a rotary output end of an actuator (1), an elastic piece (25) which is abutted against the top of the valve core (26) is arranged on the inner side of the stop piece (23), and the actuator (1) drives the rotation of the valve core (26) to switch the circulation between circulation holes.

2. The five-way water valve of claim 1, wherein: one end of the stop piece (23) is provided with a coupling seat (31) which penetrates through the valve cover (21) and is used for being connected with the rotary output end of the actuator (1), a sealing ring (24) is installed between the valve covers (21) on the outer sides of the coupling seat (31), one end of the stop piece (23) is connected with the valve core (26) through a key shaft (32), a pair of supporting columns (33) extending towards the direction of the valve core (26) are arranged on two sides of the key shaft (32), and the end parts of the supporting columns (33) are inserted into corresponding limiting grooves in the valve core (26).

3. The five-way water valve of claim 1, wherein: a protruding block (34) is arranged at the edge of one end, close to the valve cover (21), of the stop piece (23), a limiting boss (35) is arranged on the end face of the inner side of the valve cover (21), and the limiting boss (35) is arranged on an arc path formed by the protruding block (34) along with the rotation of the stop piece (23).

4. The five-way water valve of claim 1, wherein: the flow holes are arranged in a cross shape and comprise a fifth flow 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 hole (d) which are arranged on the periphery, a first cavity (A), a second cavity (B) and a third cavity (C) on the valve core (26) are formed by separating a first flow baffle plate (g), wherein the fifth flow hole (e) is set to be a normally open hole, the first cavity (A) is always communicated with the fifth flow hole (e), a balance hole (h) communicated with an inner cavity of a valve body (22) on the upper side of the valve core (26) is formed in the top of the first cavity (A), and the second cavity (B) and the third cavity (C) are symmetrically arranged on two sides of the first cavity (A).

5. The five-way water valve of claim 4, wherein: the first central angle theta of the bottom end position of the valve body (22) occupied by the flow hole is 45 degrees, the diameter of the flow hole is phi, the distance X between the center of the valve body (22) and the center of the flow hole is obtained, the thickness of the first flow baffle plate (g) is t, and X =1.3 (phi + t).

6. The five-way water valve of claim 5, wherein: the second central angle α 1 of the first cavity (a) =90 °, and the third central angle α 2 of the second cavity (B) and the fourth central angle α 3 of the third cavity (C) are both 135 °.

7. The five-way water valve of claim 1, wherein: the circulation holes are annularly arranged and comprise a first circulation hole (a), a second circulation hole (B), a fourth circulation hole (d), a fifth circulation hole (e) and a third circulation hole (C) which are sequentially arranged along the anticlockwise direction of the bottom end of the valve body (1), a first cavity (A), a second cavity (B) and a third cavity (C) on the valve core (26) are formed by separating a second flow baffle plate (k) and a third flow baffle plate (l), the fifth circulation hole (e) is a normally open hole and is always communicated with the third cavity (C), and a balance hole (h) communicated with the inner cavity of the valve body (22) on the upper side of the valve core (26) is formed in the top of the third cavity (C).

8. The five-way water valve of claim 7, wherein: the first central angle theta of the bottom end position of the valve body (22) occupied by the flow hole is 30 degrees, the diameter of the flow hole is phi, the distance between the center of the valve body (22) and the center of the flow hole is X, and X =1.93 phi.

9. The five-way water valve of claim 8, wherein: the second central angle α 1 of the first cavity (a) is =90 °, the fourth central angle α 3 of the third cavity (C) is =150 °, and the third central angle α 2 and the fifth central angle α 4 of both sides of the second cavity (B) are both 60 °.

10. The five-way water valve of claim 1, wherein: executor (1) include last casing (11), be located lower casing (12) of last casing (11) downside and be located inside PCB board (13) of last casing (11), last casing (11) and lower casing (12) between install motor (14), the output shaft of motor (14) link to each other with the input of gear change subassembly (15), the output of gear change subassembly (15) link to each other with stopper (23).

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