A fluid control valve

Abstract

The application discloses a fluid control valve, which comprises a water inlet chamber, at least one water inlet on the water inlet chamber, a water outlet chamber, at least one water outlet on the water outlet chamber, each water inlet or water outlet being communicated with at least one water outlet or water inlet, and a cam valve mechanism for controlling the opening and closing of the passage between the water inlet chamber and the water outlet chamber. The cam valve mechanism can produce fixed mode high-low differential reciprocating motion, realize the closing of the flow passage in the valve body, and further realize the opening and closing of the water outlet on the water outlet chamber. One cam can realize the simultaneous control of multiple valve cores, the control is flexible and changeable, and the size of the mechanism is greatly reduced. Meanwhile, the mechanism also has the function of adjusting the water flow size according to the high-low differential of the valve core, or increasing the size and number of the passage, and cooperating with the corresponding valve core. The water inlets and outlets can be arranged in the axial direction, the radial direction, horizontally or other angle directions, and the mechanism is flexible and changeable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile electric water valve, and particularly relates to a fluid control valve. BACKGROUND

[0002] In the automobile industry, the air conditioning system assembly adjusts the air in the vehicle by mixing the air cooled in the evaporator and the air heated in the heater core to create a comfortable environment in the vehicle. The electric water valve is an important part of the air conditioning system assembly.

[0003] In the prior art, the water flow control structure of the electric water valve generally controls the opening and closing of the water valve to realize the connection or stop of the pipeline. The traditional control water valve can only control one port individually. Especially in the new energy automobile thermal management system, multiple ports are needed, and a water valve needs to be arranged in front of each outlet. Therefore, there are problems of too many water valves, too large space occupation, difficult arrangement and high cost. SUMMARY

[0004] In view of the above technical problems, the present application provides a fluid control valve which can control the water flow of multiple ports and multiple directions through one mechanism, and has small volume and low cost.

[0005] To solve the above technical problems, the present application adopts the following technical scheme: a fluid control valve, comprising a water inlet chamber, the water inlet chamber has at least one water inlet port; a water outlet chamber, the water outlet chamber has at least one water outlet port, there is at least one channel port between the water inlet chamber and the water outlet chamber, so that each water inlet port or water outlet port is communicated with at least one water outlet port or water inlet port; a cam valve mechanism, the cam valve mechanism controls the closure or opening of the channel port between the water inlet chamber and the water outlet chamber.

[0006] Further, the cam valve mechanism comprises a cam, a valve core and an elastic component; the valve core is partially arranged in the channel port between the water inlet chamber and the water outlet chamber; the cam is formed with a wave-shaped contact surface, and the elastic component applies force to the valve core; when the cam rotates by a certain angle according to the set value, the bottom end surface of the valve core contacts the contact surface of the cam, drives the valve core to produce linear reciprocating motion, and controls the closure and opening of the channel port in the water chamber.

[0007] Further, the water inlet chamber and the water outlet chamber can be converted.

[0008] Further, there is a water storage chamber between the water inlet chamber and the water outlet chamber; a water storage cavity is formed in the water storage chamber, the water inlet end of the water storage cavity is connected with the water inlet chamber, and the water outlet end is provided with at least one channel port communicated with the water outlet chamber; the cam valve mechanism controls the closure or opening of the channel port on the water storage chamber.

[0009] Further, the valve core has a shaft shoulder formed in the middle part, the part above the shaft shoulder passes through the passage opening of the water storage chamber and is located in the water storage chamber, the passage opening is combined with a sealing ring, and a spring is installed between the shaft shoulder and the water inlet chamber.

[0010] Further, the water flow in the water outlet chamber is adjusted by the number and size of the passage openings in the water storage chamber, the number and size of the passage openings in the water storage chamber and the height difference of the valve core position.

[0011] Further, the water storage chamber has an annular partition plate, which divides the water storage chamber into two independent cavities, namely a first water storage chamber and a second water storage chamber, the first water storage chamber and the second water storage chamber have at least one passage opening respectively, and the first water storage chamber and the second water storage chamber are respectively connected with the water outlet chamber; the water inlet chamber has two water inlet openings at the upper end, the first water storage chamber is connected with the first water inlet opening, and the second water storage chamber is connected with the second water inlet opening; the first water storage chamber and the second water storage chamber are respectively annularly distributed with three passage openings, the three passage openings in the first water storage chamber are respectively connected with a first valve core, a third valve core and a fifth valve core, and the three passage openings in the second water storage chamber are respectively connected with a second valve core, a fourth valve core and a sixth valve core; the water outlet chamber is divided into three independent fan-shaped areas of the same size, each area is provided with a water outlet opening, and the three areas are respectively connected with the passage openings where the first and second valve cores are located, the passage openings where the third and fourth valve cores are located, and the passage openings where the fifth and sixth valve cores are located; the water outlet chamber is radially distributed with three water outlet openings, which are respectively connected with the three areas in the water outlet chamber; the number of water inlet openings multiplied by the number of water outlet openings is less than or equal to the number of valve cores.

[0012] Further, the cam has two annular contact surfaces, the inner contact surface keeps contact with the bottom ends of the first valve core, the third valve core and the fifth valve core, and the outer contact surface keeps contact with the bottom ends of the second valve core, the fourth valve core and the sixth valve core.

[0013] Further, the elastic component is a spring, the water inlet chamber has a resisting column on the inner upper end surface, one end of the spring is connected to the resisting column, and the other end of the spring is connected to the shaft shoulder of the valve core.

[0014] Further, the water inlet chamber and the water outlet chamber have a water distribution chamber; the water inlet chamber is divided into a plurality of independent water inlet cavities, each independent water inlet cavity is connected with a water inlet opening; the water distribution chamber is divided into a plurality of independent water distribution cavities, each water distribution cavity has at least one passage opening connected with the water inlet chamber; the water outlet chamber is divided into a plurality of independent water outlet cavities, each water outlet cavity has at least one passage opening connected with the water distribution chamber, and each water outlet cavity is connected with a water outlet opening; the cam valve mechanism controls the closing or opening of the passage openings on the water distribution chamber.

[0015] Further, the water inlet chamber is divided into two identical rectangular water inlet cavities by a partition, the water distribution chamber is divided into three identical rectangular water distribution cavities by a partition, the water distribution chamber has six passage openings, each water distribution cavity has two passage openings respectively communicating with two water inlet cavities; the water outlet chamber is divided into three independent water outlet cavities by a partition, from top to bottom, two L-shaped cavities and one rectangular cavity, each water outlet cavity has one passage opening communicating with one water distribution cavity; the water inlets are two horizontally arranged on the same side of the water outlet chamber, the water outlets are three horizontally arranged on the same side of the water outlet chamber and parallel to the water inlets; the number of water inlets multiplied by the number of water outlets is equal to the number of valve cores.

[0016] Further, the elastic component is a spring, the valve core has a shaft shoulder formed in the middle part, the part above the shaft shoulder passes through the passage opening of the water distribution chamber and is located in the water distribution chamber, the passage opening has a sealing ring at the joint, the shaft shoulder and the water outlet chamber are provided with a spring; the bottom end of the valve core passes through the bottom of the water inlet chamber and has a sealing ring at the joint; the bottom end of the valve core is blunt and forms a contact angle with the contact surface of the cam, the angle between the two contact surfaces is greater than 0 degrees and less than 45 degrees.

[0017] Further, the shaft shoulder of the valve core has a plurality of adjusting grooves distributed axially for adjusting water flow, when the passage opening of the water distribution chamber is opened, water flows through the adjusting grooves.

[0018] Further, the valve core has a spring mounting groove at the top, the water outlet chamber has a spring fixing column at the bottom, the spring is mounted on the spring fixing column and the bottom is in the spring mounting groove.

[0019] Further, the six passage openings on the water distribution chamber are respectively provided with a first valve core, a second valve core, a third valve core, a fourth valve core, a fifth valve core and a sixth valve core, the six passage openings are distributed in a ring shape, and the six valve cores are driven by the ring-shaped contact surface of one cam.

[0020] Further, the water outlet chamber has a ring structure and has at least one water outlet axially; the water inlet chamber has a ring cylinder structure and is connected inside the water outlet chamber, a hollow column is formed in the center of the water inlet chamber, a water storage area is formed between the hollow column and the outer wall of the water inlet chamber, the water storage area is divided into a plurality of water storage cavities by a partition, each water storage cavity has one water inlet axially and at least one passage opening radially communicating with the outside water outlet chamber; the cam valve mechanism is installed in the hollow column of the water inlet chamber, the valve core of the cam valve mechanism passes through the water inlet chamber and controls the closure or opening of the passage opening between the water inlet chamber and the water outlet chamber.

[0021] Further, the cam center has a driving shaft, and the cam radial outer contour is a wave-shaped contact surface; the valve core inner end keeps contact with the cam outer contour, and the valve core outer end forms a plug to pass through the water inlet chamber to block the passage opening of the water inlet chamber outer wall; the valve core inner end contact point is round and blunt, and forms a contact angle with the cam outer contour, and the contact angle between the two is greater than 0 degrees and less than 45 degrees.

[0022] Further, the water inlet chamber is equally divided into four water storage cavities, each of which is vertically arranged with four passage openings, and each water storage cavity is connected with four water outlet chambers through four vertically arranged passage openings from top to bottom; the cam corresponds to four cams vertically arranged from top to bottom, corresponding to the first water outlet chamber, the second water outlet chamber, the third water outlet chamber and the fourth water outlet chamber in turn, and the four cams are driven by the same driving shaft, and each cam drives four corresponding valve cores.

[0023] Further, the water outlet flow is adjusted by the number and size of the passage openings between the water inlet chamber and the water outlet chamber.

[0024] Further, the water inlet chamber top is provided with a water tank cover, the water tank cover covers the water inlet chamber and the first water outlet chamber at the same time, and the water tank cover is provided with four water inlets respectively connected with the four water storage cavities in the water inlet chamber.

[0025] Further, the elastic component is a spring, and the valve core middle part is formed with a shaft shoulder for installing the spring.

[0026] Further, the water inlet chamber and the water outlet chamber are separated by a water chamber to form two water inlet chambers and three water outlet chambers, which are independent cavities; the three water outlet chambers are respectively connected with the first water inlet chamber and the second water outlet chamber through at least one passage opening on the upper and lower sides, and the three water outlet chambers are respectively provided with a first water outlet, a second water outlet and a third water outlet; the first water inlet chamber and the second water inlet chamber are respectively provided with a first water inlet and a second water inlet.

[0027] Further, the valve core includes a push rod, a core and a guide rod; the elastic component is a spring, and the spring is installed on the guide rod; one end of the guide rod is fixed on the side wall of the first water inlet chamber, and the other end is assembled with the upper shaft hole of the core; one end of the push rod is installed on the lower shaft hole of the core, and the other end passes through the second water inlet chamber and contacts the end surface of the cam; the upper and lower ends of the core form a plug to block the passage opening of the water outlet chamber, and the height difference of the wave-shaped contact surface of the cam drives the push rod, the push rod drives the core and the spring, so that one core controls the opening and closing of the upper and lower passage openings of the water outlet chamber at the same time, and when one side passage opening is opened, the other side passage opening is closed.

[0028] Further, the three water outlet chambers are each provided with two channel openings in upper and lower positions, which are respectively communicated with the first water inlet chamber and the second water inlet chamber; the valve core and the spring are correspondingly six, which are arranged at equal intervals in a circle of 60 degrees, and the six push rods are driven by one cam end face.

[0029] Further, the two water inlet chambers and the three water outlet chambers are capped by one water chamber cover.

[0030] The beneficial effects of the above technical scheme are as follows: the cam valve mechanism can generate fixed-mode high-low difference reciprocating motion, realize the closing of the flow channel in the valve body, and further realize the opening or closing of the water outlet openings in the water outlet chambers; one cam can realize the simultaneous control of multiple valve cores, the control is flexible and changeable, and the size of the mechanism is greatly reduced. Meanwhile, the mechanism also has the function of adjusting the water flow size according to the high-low difference of the valve core, or increasing the size and number of the channel openings, and cooperating with the corresponding valve core. The water inlet and outlet openings can be arranged in the axial direction, the radial direction, horizontally or in other angles, and the mechanism is flexible and changeable. Different water inlet openings have corresponding independent flow channels in the water inlet chamber, the water flow passes through the valve core to enter the water outlet chamber, the water outlet chamber also has independent flow channels corresponding to different water outlet openings, a single water inlet opening can be controlled by the valve core to select water outlet in any water outlet opening. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the first embodiment of the present application;

[0032] Figure 2 It is an assembly schematic diagram of the first embodiment of the present application;

[0033] Figure 3 It is a structural schematic diagram of the water storage chamber of the first embodiment of the present application;

[0034] Figure 4 It is a working schematic diagram of the cam valve mechanism of the first embodiment of the present application;

[0035] Figure 5 It is a sectional view of the internal structure of the first embodiment of the present application;

[0036] Figure 6 It is a structural schematic diagram of the second embodiment of the present application;

[0037] Figure 7 It is an assembly schematic diagram of the second embodiment of the present application;

[0038] Figure 8 It is a structural schematic diagram of the water outlet chamber of the second embodiment of the present application;

[0039] Figure 9 It is a structural schematic diagram of the water distribution chamber of the second embodiment of the present application;

[0040] Figure 10The valve core structure schematic diagram of the cam valve mechanism of the second embodiment of the present application;

[0041] Figure 11 The internal structure sectional view of the second embodiment of the present application;

[0042] Figure 12 The structure schematic diagram of the third embodiment of the present application;

[0043] Figure 13 The assembly schematic diagram of the third embodiment of the present application;

[0044] Figure 14 The structure schematic diagram of the water inlet chamber of the third embodiment of the present application;

[0045] Figure 15 The structure schematic diagram of the cam valve mechanism of the third embodiment of the present application;

[0046] Figure 16 The structure schematic diagram of the first water outlet chamber of the third embodiment of the present application;

[0047] Figure 17 The structure schematic diagram of the second water outlet chamber of the third embodiment of the present application;

[0048] Figure 18 The structure schematic diagram of the third water outlet chamber of the third embodiment of the present application;

[0049] Figure 19 The structure schematic diagram of the fourth water outlet chamber of the third embodiment of the present application;

[0050] Figure 20 The structure schematic diagram of the valve core of the third embodiment of the present application;

[0051] Figure 21 The assembly schematic diagram of the fourth embodiment of the present application;

[0052] Figure 22 The internal structure sectional view of the fourth embodiment of the present application; DETAILED DESCRIPTION

[0053] The present application will be further described below in conjunction with the drawings.

[0054] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. 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.

[0055] The fluid control valve comprises a water inlet chamber, at least one water inlet port on the water inlet chamber, a water outlet chamber, at least one water outlet port on the water outlet chamber, at least one passage port between the water inlet chamber and the water outlet chamber, and a cam valve mechanism for controlling the closure and opening of the passage port between the water inlet chamber and the water outlet chamber. The cam valve mechanism comprises a cam, a valve core and an elastic component. The valve core is partially arranged in the passage port between the water inlet chamber and the water outlet chamber. The cam is provided with a wave-shaped contact surface. The elastic component applies force to the valve core. When the cam rotates by a certain angle according to a set value, the bottom end surface of the valve core contacts the contact surface of the cam, so as to drive the valve core to generate linear reciprocating motion, thereby controlling the closure and opening of the passage port in the water chamber. It should be noted that the water inlet chamber and the water outlet chamber can be used interchangeably according to the working conditions. That is, the water inlet chamber is used for water outlet, and the water outlet chamber is used for water inlet. The fluid control valve is flexible and can cope with various situations. The following four embodiments are given for illustration. It should be noted that the elastic component in the following four embodiments is a spring, which has the characteristics of good elasticity, strong adaptability and flexible use. However, the present application is not limited to using only a spring. According to the actual situation, other suitable elastic components such as rubber elastic pads and elastic diaphragms can also be used to replace the spring.

[0056] Reference Figures 1 to 5 The first embodiment of the present application is given as follows: as shown in Figure 1 and Figure 2 A fluid control valve comprises a water inlet chamber 1, at least one water inlet port on the water inlet chamber 1, a water storage chamber, a water storage cavity formed in the water storage chamber, a water inlet end of the water storage cavity being connected to the water inlet chamber 1, and at least one passage port on the water outlet end being connected to a water outlet chamber 6. The water outlet chamber 6 is provided with at least one water outlet port. A cam valve mechanism 7 controls the closure and opening of the passage port on the water storage chamber. The cam valve mechanism 7 comprises a cam 708, a valve core and a spring 707. The middle part of the valve core is formed with a shaft shoulder. The part above the shaft shoulder passes through the passage port of the water storage chamber and is located in the water storage chamber. A sealing ring is arranged at the joint of the passage port. The spring 707 is arranged between the shaft shoulder and the water inlet chamber. The cam 708 is provided with an annular contact surface, which is wave-shaped. Under the action of the spring 707, when the cam rotates by a certain angle according to a set value, the bottom end surface of the valve core contacts the contact surface of the cam, so as to drive the valve core to generate linear reciprocating motion, thereby controlling the closure and opening of the passage port in the water storage chamber.

[0057] As Figure 4As shown, the working process of the cam valve mechanism 7 is as follows: First, the cam 708 is connected to a driving device (such as a motor). Initially, the valve core keeps the channel port closed or partially open. The cam 708 is driven by the device to rotate. Due to the wave-shaped contact surface, the valve core makes a linear reciprocating motion. When the valve core descends, the part blocking the channel port opens to allow flow. When the valve core rises, the channel port returns to the closed state. This design can generate a fixed pattern of high-low difference reciprocating motion, realizing the closure of the flow channel in the valve body, and thus realizing the opening or closing of the outlet port on the outlet chamber 6. It also has the function of adjusting the water flow rate. The water flow rate in the outlet chamber 6 is adjusted by the number and size of the channels in the water storage chamber, as well as the height difference of the valve core. Theoretically, the larger and more numerous the channels in the water storage chamber, the greater the water flow rate. This method can control the flow rate of the water storage chamber. At the same time, the rotation speed of the cam 708 also has a certain influence on the flow rate, which can be set according to the actual working conditions. Figure 5 As shown, the contact angle between the bottom end of the valve core and the cam 708 is greater than 0 degrees and less than 45 degrees. Within this preferred angle range, friction can be reduced while ensuring sufficient driving force. Figure 2 and Figure 3 As shown, the inlet chamber 1, the storage chamber, and the outlet chamber 6 are all cylindrical structures. The storage chamber has an annular partition dividing it into two independent cavities: a first storage chamber 2 and a second storage chamber 3. Both the first and second storage chambers 2 and 3 have at least one passageway connecting to the outlet chamber 6. The inlet chamber 1 has two inlets at its upper end: the first storage chamber 2 is connected to the first inlet 101, and the second storage chamber 3 is connected to the second inlet 103. Figure 2 As shown, the first water storage chamber 2 and the second water storage chamber 3 each have three channel openings arranged in a ring. The three channel openings in the first water storage chamber 2 are connected to the first valve core 701, the third valve core 703, and the fifth valve core 705, respectively. The three channel openings in the second water storage chamber are connected to the second valve core 702, the fourth valve core 704, and the sixth valve core 706, respectively. The outlet chamber 6 is divided into three identical and independent fan-shaped areas, each with an outlet. The three areas are connected to the channel openings of the first and second valve cores, the third and fourth valve cores, and the fifth and sixth valve cores, respectively. The outlet chamber 6 has three radially distributed outlets, each connected to one of the three areas within the outlet chamber 6. This embodiment shows a radial water inlet and outlet method. Depending on the direction of the outlet arrangement, water inlet and outlet in different directions can be achieved, such as horizontal, vertical, or angled inclination. Figure 2As shown, cam 708 has two annular contact surfaces, an inner and an outer one. The inner contact surface is in contact with the bottom ends of the first valve core 701, the third valve core 703, and the fifth valve core 705, while the outer contact surface is in contact with the bottom ends of the second valve core 702, the fourth valve core 704, and the sixth valve core 706. One cam can simultaneously control multiple valve cores, providing flexible and versatile control while significantly reducing the size of the mechanism.

[0058] In this embodiment, the inlet chamber 1 and the outlet chamber 6 are respectively connected by corresponding channels. Water enters the storage chamber from the inlet chamber 1, then passes through the channels controlled by the valve core, and finally converges in the outlet chamber 6. The outlet chamber has a corresponding number of outlet partitions to separate different outlets. During operation, the actuator rotates the drive cam 708 at a set rotation angle. When the valve core moves to a set height, it can realize the corresponding functions of closing, opening, and regulating the flow of the channels. Its working mode is as follows: when water enters through the first inlet 101, the first valve core 701 is open and water exits through the third outlet 601; when the third valve core 703 is open, water exits through the second outlet 602; when the fifth valve core 705 is open, water exits through the third outlet 603. When water enters through the second inlet 102, the second valve core 702 opens, the first outlet 601 opens, the fourth valve core 704 opens, the second outlet 602 opens, the sixth valve core 706 opens, and the third outlet 603 opens. This is one embodiment; the number of inlets and outlets can be increased according to actual conditions. The number of inlets multiplied by the number of outlets should be less than or equal to the number of valve cores to meet the control requirements of multi-channel water circuits. Furthermore, based on the above embodiment, if... Figure 2 As shown, a first sealing ring 4 and a second sealing ring 5 are respectively installed between the first water storage chamber 2, the second water storage chamber 3, and the inlet chamber 6. A third sealing ring 8 is installed between the outlet chamber 6 and the water storage chamber. The third sealing ring 8 is adapted to the shape of the partition plate inside the outlet chamber 6, ensuring the airtightness between each independent area. Figure 5 As shown, there is a stop post 103 on the upper surface of the water inlet chamber 1. One end of the spring 707 is connected to the stop post 103, and the other end is connected to the shoulder of the valve core. Since the water inlet chamber 1 is far from the valve core, the stop post 103 is set inside the water inlet chamber 1, which makes it easier to install the spring 707.

[0059] See below. Figures 6 to 11The second embodiment of the present application is a fluid control valve, which comprises a water inlet chamber 23, the water inlet chamber 23 is divided into multiple independent water inlet cavities, each water inlet cavity is communicated with a water inlet port; a water distribution chamber 22, the water distribution chamber 22 is divided into multiple independent water distribution cavities, each water distribution cavity has at least one passage port communicated with the water inlet chamber 23; a water outlet chamber 21, the water outlet chamber 21 is divided into multiple independent water outlet cavities, each water outlet cavity has at least one passage port communicated with the water distribution chamber 22, each water outlet cavity is communicated with a water outlet port; a cam valve mechanism 25, the cam valve mechanism 25 controls the closing and opening of the passage ports on the water distribution chamber 22. The water distribution chamber 22 converges and separates the fluid from the water inlet chamber 23 and then flows through the water outlet chamber. As shown in Figure 6 、 Figure 7 and Figure 8 , the water inlet chamber 23, the water distribution chamber 22 and the water outlet chamber 21 are all rectangular structures; the water inlet chamber 1 is divided into two identical rectangular water inlet cavities by a partition, the water distribution chamber 22 is divided into three identical rectangular water distribution cavities by a partition, the water distribution chamber 22 has six passage ports, each water distribution cavity has two passage ports communicated with two water inlet cavities respectively; the water outlet chamber 3 is divided into three independent water outlet cavities by a partition, from top to bottom, two L-shaped cavities and one rectangular cavity, each water outlet cavity has one passage port communicated with one water distribution cavity; the water inlet ports are two horizontally arranged on the same side of the water outlet chamber, and the water outlet ports are three horizontally arranged on the same side of the water outlet chamber 3 and parallel to the water inlet ports. Through the shape setting of the water inlet cavities, the water distribution cavities and the water outlet cavities, water can be supplied by two water inlet ports and water can be discharged by three water outlet ports, the water inlet ports and the water outlet ports can be kept parallel in the same plane, the L-shaped cavities can guide the fluid to flow out from the same direction, which is suitable for the layout of the entire electric water valve. The number of water inlet ports multiplied by the number of water outlet ports is equal to the number of valve cores, which can meet the control of multiple passage waterways. As shown in Figure 11 , the cam valve mechanism 25 comprises a cam 2510, a valve core and a spring 2507; the valve core has a shaft shoulder formed in the middle part, the part above the shaft shoulder penetrates through the passage port of the water distribution chamber 22 and is located in the water distribution chamber 22, the joint has a sealing ring, and the spring 2507 is installed between the shaft shoulder and the water outlet chamber 3; the cam 2510 has an annular contact surface, the contact surface is in a wave shape, the bottom end of the valve core penetrates through the bottom of the water inlet chamber 23 and has a sealing ring at the joint, and under the force of the spring 2507, the bottom end of the valve core always keeps in contact with the contact surface of the cam 2510. When the cam 2510 rotates by a certain angle according to the set value, it will drive the valve core to produce linear reciprocating motion, thereby controlling the closing and opening of the passage ports in the water distribution chamber 22. The bottom end of the valve core is blunt and forms a contact angle with the contact surface of the cam, and the angle between the two contact surfaces is greater than 0 degrees and less than 45 degrees. In this preferred angle range, the friction can be reduced while ensuring sufficient driving force.

[0060] The working process of the cam valve mechanism 25 is as follows Figure 11As shown: First cam 2510 connected with driving device (such as motor), initial state valve core keeps closed channel, cam 2510 driven by the device starts to rotate, due to the contact surface of the waveform makes the valve core do linear reciprocating motion, when the valve core rises, the part of the closed channel is opened to flow, when the valve core falls, the channel returns to the closed state, using this design can produce fixed mode of high-low difference reciprocating motion, realize the control of valve body flow, and then realize the opening or closing of the water outlet of the water outlet chamber 21. As shown Figure 10 As shown, the shaft shoulder of the valve core is axially distributed with a plurality of adjusting grooves 2509 for adjusting water flow, when the channel of the water distribution chamber is opened, water flows from the adjusting grooves 2509. The larger the number of adjusting grooves 2509, the greater the water flow. By adjusting the number and size of the adjusting grooves, the water flow of the mechanism is controlled. As shown Figure 7 As shown, the six channels on the water distribution chamber 22 are respectively installed with first valve core 2501, second valve core 2502, third valve core 2503, fourth valve core 2504, fifth valve core 2505 and sixth valve core 2506, and the six channels are distributed in a ring shape, and the six valve cores are driven by a ring-shaped contact surface of a cam. One cam and one contact surface can realize the control of all channels of the mechanism, which is flexible and variable, and greatly saves the volume of the mechanism. As shown Figure 10 and Figure 11 As shown, the top of the valve core is provided with a spring mounting groove 2508, and the bottom of the water outlet chamber 21 is provided with a spring fixing column 2105, and the spring is mounted on the spring fixing column 2105 and the bottom is in the spring mounting groove 2508.

[0061] The embodiment is provided with corresponding channel communication between the water inlet chamber 23 and the water outlet chamber 21, respectively, and water enters the water distribution chamber 22 from the water inlet chamber 23 through the channel controlled by the valve core, and each area corresponds to a different water outlet. From multiple water outlets. When working, the driving device rotates the driving cam 2510 by a set angle, and when the valve core moves to a set height, the channel can be closed, opened, and the flow can be adjusted. Control function. Here is the basic working mode: when the first water inlet 2301 is filled with water, the first valve core 2501 is single, the second water outlet 2102 is filled with water, the third valve core 2503 is single, the first water outlet 2101 is filled with water, the fifth valve core 2505 is single, and the third water outlet 2103 is filled with water. When the second water inlet 2302 is filled with water, the second valve core 2502 is single, the second water outlet 2102 is filled with water, the fourth valve core 2504 is single, the first water outlet 2101 is filled with water, the sixth valve core 2506 is single, and the third water outlet 2103 is filled with water. In turn, various water inlet and water outlet modes can be combined according to actual needs. The number of water inlets multiplied by the number of water outlets should be less than or equal to the number of valve cores, so as to meet the control of multiple channel waterways.

[0062] On the basis of this embodiment, as shown in Figure 2 The top of the water outlet chamber 21 has a groove cover 2104 sealed by a sealing ring 24. Sealing rings 4 are respectively installed between the water inlet chamber 23 and the water distribution chamber 22 and between the water distribution chamber 22 and the water outlet chamber 21. The sealing ring 24 is matched with the shape of the partition plate of each area to ensure the sealing between the independent areas. In addition, the water inlet and the water outlet can be interchanged and are not limited to water inlet from below and water outlet from above. As long as the water source is connected to the water outlet, water inlet from above and water outlet from below can also be achieved, which increases the flexibility of the structure.

[0063] The third embodiment of the present application is described below. Figures 12 to 20 As shown in Figure 12 and Figure 13 A fluid control valve includes a water outlet chamber, which is annular in structure and has at least one water outlet in the axial direction; a water inlet chamber 37, which is annular in structure and is connected inside the water outlet chamber. The water inlet chamber 37 has a hollow column in the center, and a water storage area is formed between the hollow column and the outer wall 3703 of the water inlet chamber. The water storage area is divided into multiple water storage cavities 3701 by a partition plate. Each water storage cavity 3701 has one water inlet in the axial direction and at least one passage opening in the radial direction for communication with the outside of the water outlet chamber. A cam valve mechanism 38 is installed in the hollow column of the water inlet chamber. The valve core of the cam valve mechanism 38 penetrates through the water inlet chamber 37 to control the closing or opening of the passage opening between the water inlet chamber 37 and the water outlet chamber. Through the shape setting of the water inlet chamber and the water outlet chamber, the water inlet and the water outlet can be kept parallel in the same plane, realizing water outlet in the vertical direction of the device. The cam valve mechanism is hidden in the center of the water inlet chamber, reducing the volume of the device and saving space, which is suitable for the layout of the entire electric water valve. Figure 13 and Figure 15 As shown in Figure 13 and Figure 15 The cam valve mechanism 38 includes a cam 3801, a valve core 3802, and a spring 3803. The cam 3801 has a drive shaft 3804 in the center, and the radial outer contour of the cam 3801 is a wave-shaped contact surface. The inner end of the valve core 3802 is in contact with the outer contour of the cam 3801, and the outer end of the valve core 3802 forms a plug to block the passage opening of the outer wall of the water inlet chamber 37. The spring 3803 is installed on the valve core 3802. Under the force of the spring 3803, the inner end of the valve core 3802 is always in contact with the contact surface of the cam 3801. When the cam 3801 rotates by a certain angle according to the set value, it will drive the valve core 3802 to produce linear reciprocating motion, controlling the closing or opening of the passage opening in the water inlet chamber 37. Figure 13 and Figure 14 As shown in Figure 13 and Figure 14 The water inlet chamber 37 is equally divided into four water storage cavities 3701. Each water storage cavity 3701 has four passage openings arranged vertically in the radial direction. Each water storage cavity 3701 is connected to four water outlet chambers through four vertically arranged passage openings from top to bottom. Figure 13 and Figure 15As shown, the cam 3801 corresponds to four, arranged vertically from top to bottom, corresponding to the first water outlet chamber 33, the second water outlet chamber 34, the third water outlet chamber 35 and the fourth water outlet chamber 36 in turn, the four cams 3801 are driven by the same drive shaft 3804, and each cam 3801 drives four corresponding channel ports. The inner end of the valve core 3802 contacts the outer contour of the cam 3801 to form a contact angle, and the contact angle between the two is greater than 0 degrees and less than 45 degrees. Within this preferred angle range, friction can be reduced while ensuring sufficient driving force.

[0064] The embodiment water inlet chamber 37 and each water outlet chamber is respectively provided with a corresponding channel port for communication, water enters the water storage cavity in the water inlet chamber 37 through the water inlet, then passes through the channel port controlled by the valve core, and enters each water outlet chamber. In combination with the above embodiment, the working mode is as follows Figures 16 to 19 As shown, the drive shaft 3804 is connected with a power device (such as a motor), and the driving device rotates the cam 3708 by a set rotation angle. When the valve core moves to a set height, the channel port can be closed, opened, and the flow rate can be adjusted. When the first water inlet 3101 is filled with water, the water flow enters the corresponding water storage cavity 3701 in the water inlet chamber 37, and the water flow in the water storage cavity 3701 is controlled by the valve core to enter the first water outlet chamber 33, the second water outlet chamber 34, the third water outlet chamber 35 and the fourth water outlet chamber 36 through the four channel ports from top to bottom. Similarly, the water flow entering the second water inlet 3102, the third water inlet 3103 and the fourth water inlet 3104 can be controlled by the valve core to enter the four water outlet chambers, respectively, and be discharged from the first water outlet 3301, the second water outlet 3401, the third water outlet 3501 and the fourth water outlet 3601. The above is a basic water flow control scheme, and on the basis of the basic water flow control scheme, various combinations of water flow control can be realized according to actual conditions. The number of water inlets multiplied by the number of water outlets should be less than or equal to the number of valve cores to meet the control of multiple channel waterways. The water outlet flow rate is adjusted by the number and size of the channel ports between the water inlet chamber and the water outlet chamber. It is suitable for flexible control of the flow rate of the device.

[0065] On the basis of this embodiment, as shown in Figure 13 The water inlet chamber 37 is provided with a water tank cover 31 on the top, and the water tank cover 31 covers the water inlet chamber 37 and the first water outlet chamber 33 at the same time. The water tank cover 31 is provided with four water inlets, which are respectively connected with the four water storage cavities 3701 in the water inlet chamber. As shown in Figure 12 The water tank cover 3101 and the water inlet chamber 37, the first water outlet chamber 33 are provided with a sealing ring 32, and the four water outlet chambers are provided with a sealing ring 32. The sealing ring 32 is matched with the shape of the partition plate in each area to ensure the sealing between each independent area. As shown in Figure 20As shown, the middle of the valve core 3802 is formed with a shaft shoulder for installing the spring 3803, which facilitates the installation of the spring.

[0066] Referring to the drawings below Figure 20 and Figure 21 A fourth embodiment of the present application is given: a fluid control valve, comprising a water inlet chamber, a water outlet chamber and a cam valve mechanism; the water inlet chamber and the water outlet chamber are separated by a water chamber to form two water inlet chambers and three water outlet chambers, which are independent cavities; the three water outlet chambers 42 have at least one passage opening each on the top and bottom to respectively communicate with the first water inlet chamber 41 and the second water outlet chamber 43, and the three water outlet chambers 42 are respectively provided with a first water outlet 4201, a second water outlet 4202 and a third water outlet 4203; the first water inlet chamber 41 and the second water outlet chamber 43 are respectively provided with a first water inlet 4101 and a second water inlet 4201. The cam valve mechanism 45 comprises a cam 4501, a valve core and a spring 4505, wherein the valve core comprises a push rod 4502, a core 4503 and a guide rod 4504; the spring 4505 is installed on the guide rod 4504; one end of the guide rod 4504 is fixed on the side wall of the first water inlet chamber 41, and the other end is assembled with the shaft hole above the core 4503; one end of the push rod 4502 is installed on the shaft hole below the core, and the other end penetrates the second water inlet chamber 43 and contacts the end surface of the cam 4501; the core 4503 has core sealing rings 4506 on the top and bottom ends to form plugs to block the passage openings of the water outlet chambers; the height difference of the wave contact surface of the cam 4501 drives the push rod 4502, the push rod drives the core and the spring 4505, so that one core simultaneously controls the opening and closing of the upper and lower passage openings of the water outlet chambers, and when one side passage opening is opened, the other side passage opening is closed. In this embodiment, the two water inlet chambers and the three water outlet chambers are capped by a water chamber cover 44.

[0067] On the basis of this embodiment, the three water outlet chambers 42 have two passage openings each on the top and bottom to respectively communicate with the first water inlet chamber 41 and the second water inlet chamber 43; the valve core and the spring correspond to six, which are arranged at an equal distance of 60 degrees in a circle, and the six push rods 4502 are driven by the end surface of one cam 4501. The purpose is to control on one cam, and when the cam rotates 60 degrees, it corresponds to one working mode. The working process of this embodiment is as follows: the first water inlet 41 and the second water inlet 43 are water inlets, the motor controls the cam to rotate at a fixed angle of 60 degrees, the height difference of the end surface of the cam drives the push rod 4502 every 60 degrees, the push rod 4502 drives the core and the spring 4505, so as to realize the reciprocating motion of the valve core, and the corresponding core can open the passage opening on the corresponding water outlet chamber 42, and when one side passage opening is opened, the other side passage opening is closed. Then the water outlet port of the water outlet chamber flows out.

[0068] The above embodiments respectively show the axial, radial and horizontal arrangement of the water inlet and outlet, and the water inlet and outlet chamber is cylindrical or rectangular, but the present application is not limited thereto, and other directions (such as an angle inclined direction) of the water inlet and outlet and various shapes of the water inlet and outlet chamber are also within the protection scope of the present application. In addition, the number of the water inlet and outlet can be extended, and the water inlet chamber and the water outlet chamber can be used interchangeably, i.e. the water inlet becomes the water outlet, and the water outlet becomes the water inlet, for example, 2 in and 3 out or 3 in and 2 out, 3 in and 3 out, 2 in and 4 out or 4 in and 2 out, and so on.

[0069] Of course, the above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent transformation or modification according to the spirit and essence of the main technical scheme of the present application should be covered within the protection scope of the present application.

Claims

1. A fluid control valve, characterized in that, include A water inlet chamber having at least one water inlet. A water outlet chamber having at least one water outlet. There is at least one channel opening between the water inlet chamber and the water outlet chamber, so that each water inlet or water outlet is connected to at least one water outlet or water inlet. A cam valve mechanism that controls the closing or opening of the passage between the inlet chamber and the outlet chamber; The cam valve mechanism includes a cam, a valve core, and an elastic component; the valve core is partially inserted into the channel between the inlet chamber and the outlet chamber; a wave-shaped contact surface is formed on the cam, and the elastic component applies force to the valve core. When the cam rotates by a certain angle according to a set value, the bottom surface of the valve core contacts the cam contact surface, driving the valve core to produce linear reciprocating motion, thereby controlling the closing and opening of the channel in the water chamber. The inlet chamber and outlet chamber can be converted into each other; A water distribution chamber is provided between the water inlet chamber and the water outlet chamber. The water inlet chamber is divided into multiple independent water inlet cavities, each connected to a water inlet. The water distribution chamber is also divided into multiple independent water distribution cavities, each having at least one channel opening connected to the water inlet chamber. The water outlet chamber is divided into multiple independent water outlet cavities, each having at least one channel opening connected to the water distribution chamber and a water outlet. The cam valve mechanism controls the opening and closing of the channels in the water distribution chamber. The inlet chamber is divided into two identical rectangular inlet cavities by a partition, and the distribution chamber is divided into three identical rectangular distribution cavities by a partition. Each distribution cavity has six access ports, with two access ports on each cavity connecting to the two inlet cavities respectively. The outlet chamber is divided into three independent outlet cavities by a partition, consisting of two L-shaped cavities and one rectangular cavity from top to bottom. Each outlet cavity has one access port connecting to one distribution cavity. Two inlets are horizontally arranged on the same side of the outlet chamber, and three outlets are horizontally arranged parallel to the inlets on the same side of the outlet chamber. The number of inlets multiplied by the number of outlets equals the number of valve cores. The six channels on the water distribution chamber are respectively equipped with a first valve core, a second valve core, a third valve core, a fourth valve core, a fifth valve core, and a sixth valve core. The six channels are arranged in a ring, and the six valve cores are driven by the ring contact surface of a cam.

2. The fluid control valve according to claim 1, characterized in that, The elastic component is a spring; a shoulder is formed in the middle of the valve core, and the part above the shoulder passes through the channel opening of the water distribution chamber and is located in the water distribution chamber. There is a sealing ring at the joint of the channel opening, and a spring is installed between the shoulder and the water outlet chamber; the bottom end of the valve core passes through the bottom of the water inlet chamber, and there is a sealing ring at the joint; the bottom end of the valve core is rounded and forms a contact angle with the cam contact surface, and the angle between the two contact surfaces is greater than 0 degrees and less than 45 degrees.

3. A fluid control valve according to claim 2, characterized in that, The valve core has multiple regulating grooves axially distributed on its shoulder to adjust the water flow rate. When the channel opening in the water distribution chamber is opened, water flows through the regulating grooves.

4. A fluid control valve according to claim 2, characterized in that, The valve core is provided with a spring mounting groove at the top, and the water outlet chamber is provided with a spring fixing post at the bottom. The spring is mounted on the spring fixing post and its bottom is inside the spring mounting groove.

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