An electrically controlled multi-way valve

Abstract

The utility model belongs to the field of fluid control technology, and specifically discloses an electrically controlled multi-way valve, wherein a plurality of end face flow channel openings are arranged on the end face of a valve body body adjacent to an end face sealing gasket, and valve body central flow channel openings are arranged at intervals on the inner circumferential surface of the valve body body, the valve body central flow channel openings are communicated with corresponding end face flow channel openings through through holes penetrated in the valve body body, a valve core is rotatably arranged in a cavity defined by a valve cover and a valve body body, a dynamic sealing gasket is arranged between the valve core and the valve body body, a flow opening is arranged at a position corresponding to the valve body central flow channel opening on the dynamic sealing gasket, and two flow channels are arranged inside the valve core, when working, an actuator assembly drives the valve core to rotate, and the flow channel connects two groups of different valve body central flow channel openings on the valve body, so as to realize the connection, cut-off or proportional adjustment of the flow channel, realize automatic action according to the program instructions of the whole vehicle ECU or the upper computer, accurately control the valve opening and the stop position of the valve core, and meet the needs of the thermal management system.

Description

Technical Field

[0001] The utility model belongs to the technical field of fluid control, and specifically discloses an electric-controlled multi-way valve. Background Art

[0002] In the thermal management industry of new energy vehicles, electronic water valves are important components for achieving fluid management and distribution in thermal management systems. They are used to change the cross-section of the passage and the flow direction of the medium, and have functions such as diversion, cutoff, and diversion. Currently on the market, most of the six-way valves used integrate several three-way valves in the system into one valve for fluid management and distribution in the thermal management system. There are many valves, the size is large, the logical control is inconvenient, the layout is complex, the cost is high, and the subsequent maintenance is difficult. A few use multi-way electronic valves, but these multi-way valves have a large appearance and structure, and the sealing performance is insufficient, and they cannot meet the needs of thermal management systems well. Utility Model Content

[0003] In order to solve the problems in the background technology, the utility model discloses an electrically controlled multi-way valve, which realizes the connection, disconnection or proportional adjustment of the flow rate between two different groups of flow channels in the flow channel through the cooperation of the valve body and the valve core. It is easy to control and has reliable sealing, meeting the needs of the thermal management system.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An electrically controlled multi-way valve comprises an actuator assembly, a valve body and a valve core, wherein the valve body comprises a valve body body of a hollow cylindrical structure, a valve cover is arranged at one end of the valve body body, an end face sealing gasket is arranged at the other end of the valve body body, a plurality of end face flow passage openings are arranged on the end face of the valve body body adjacent to the end face sealing gasket, a plurality of valve body central flow passage openings are arranged at intervals along the circumferential direction on the inner circumferential surface of the valve body body, the valve body central flow passage openings are respectively communicated with the corresponding end face flow passage openings through through holes penetrated in the side wall of the valve body body, and windows penetrating the end face sealing gasket are respectively arranged at positions corresponding to the end face flow passage openings on the end face sealing gasket The valve core is rotatably arranged in a cavity defined by the valve cover and the valve body. A drive shaft at one end of the valve core passes through the valve cover and is transmission-connected to the output gear of the actuator assembly. A dynamic sealing gasket is arranged between the valve core and the valve body. The dynamic sealing gasket is fixedly connected to the valve body. A flow port penetrating the dynamic sealing gasket is arranged at a position on the dynamic sealing gasket corresponding to the central flow channel opening of the valve body. Two arc-shaped flow channels penetrating the outer circumferential surface of the valve core are arranged inside the valve core. When the actuator assembly drives the valve core to rotate, the flow channel can connect two groups of different central flow channel openings of the valve body on the valve body, so as to realize the connection, cut-off or proportional adjustment of the flow channel.

[0006] Furthermore, in the electrically controlled multi-way valve, two flow channels are independently arranged on both sides of the center axis of the valve core.

[0007] Furthermore, the dynamic sealing gasket of the electrically controlled multi-way valve is a double-layer structure, including an inner layer facing the valve core and an outer layer facing the valve body. The inner layer is made of PTFE, a material with lubricating properties, and the outer layer is made of EPDM. The inner and outer layers are compositely connected.

[0008] Furthermore, the electrically controlled multi-way valve has a plurality of grooves spaced circumferentially on the edges of the upper and lower end surfaces of the dynamic sealing gasket, and dynamic sealing gasket limit blocks matching the grooves are respectively provided at positions corresponding to the grooves on the valve body and the valve cover.

[0009] Furthermore, the electrically controlled multi-way valve has a plurality of sealing ribs A extending along the axial direction thereof arranged at intervals along the circumferential direction on the outer circumferential surface of the dynamic sealing gasket.

[0010] Furthermore, the electrically controlled multi-way valve is provided with a plurality of sealing ribs B extending along the circumference thereof at intervals above and below the outer circumferential surface of the dynamic sealing gasket.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model discloses an electric controlled multi-way valve, comprising an actuator assembly, a valve body and a valve core, a plurality of end face flow passage openings are arranged on the end face of the valve body body adjacent to the end face sealing gasket, a plurality of valve body central flow passage openings are arranged at intervals along the circumferential direction on the inner circumferential surface of the valve body body, the valve body central flow passage openings are respectively communicated with the corresponding end face flow passage openings through through holes penetrated in the side wall of the valve body body, the valve core is rotatably arranged in a cavity defined by the valve cover and the valve body body, a dynamic sealing gasket is arranged between the valve core and the valve body body, the dynamic sealing gasket is fixedly connected to the valve body body, a position corresponding to the valve body central flow passage opening is arranged on the dynamic sealing gasket There is a flow port that penetrates the dynamic sealing gasket, and two arc-shaped flow channels that penetrate the outer cylindrical surface of the valve core are arranged inside the valve core. When working, when the actuator assembly drives the valve core to rotate, the flow channel can connect two groups of different valve body central flow channel ports on the valve body, so as to realize the connection, cutoff or proportional adjustment of the flow channel. The electronically controlled multi-way valve cooperates with the actuator assembly to realize automatic action according to the program instructions of the vehicle ECU or the host computer, and accurately controls the valve opening and the stop position of the valve core. The electronically controlled multi-way valve of the utility model occupies a small space, has a low cost, is sensitive to adjustment, is easy to control, and has reliable sealing, which meets the needs of the thermal management system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the electric-controlled multi-way valve of the utility model;

[0015] Figure 2 It is an exploded view of the electric-controlled multi-way valve of the utility model;

[0016] Figure 3 It is a schematic diagram of the top view of the structure of the valve body of the electric-controlled multi-way valve of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the electric-controlled multi-way valve of the utility model when viewed from above;

[0018] Figure 5 It is a cross-sectional structural schematic diagram of the electric-controlled multi-way valve of the utility model;

[0019] Figure 6 It is a three-dimensional structural schematic diagram of the valve core of the electric-controlled multi-way valve of the utility model;

[0020] Figure 7 It is a three-dimensional structural schematic diagram of a dynamic sealing pad in an electric-controlled multi-way valve of the utility model;

[0021] Figure 8 This is a comparison diagram of the valve core rotation angle and the flow channel communication mode in the electric control multi-way valve of the utility model;

[0022] In the above figure: 1-actuator assembly; 2-valve cover; 2.1-shaft seal mounting hole; 2.2-dynamic seal stopper A; 3-valve body; 3.1-valve body; 3.2-dynamic seal stopper B; 3.3-valve body center flow channel opening; 3.4-end flow channel opening; 4-screw; 5-shaft seal; 6-valve core; 6.1-flow channel; 6.2-drive shaft; 6.3-valve core body; 7-dynamic seal; 7.1-dynamic seal body; 7.2-sealing rib A; 7.3-sealing rib B; 7.4-groove; 7.5-flow port; 8-end seal; 8.1-window; 9-bushing. DETAILED DESCRIPTION

[0023] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0024] Combined with Figure 1-7, the utility model is described in detail. An electric controlled multi-way valve includes an actuator assembly 1, a valve body 3 and a valve core 6. The valve body 3 includes a valve body 3.1 of a hollow cylindrical structure. A valve cover 2 is arranged at one end of the valve body 3.1. After the valve core 6 is installed in place, the valve cover 2 is welded to the valve body 3.1. The valve body 3.1 and the actuator assembly 1 are fixedly connected by screws 4. An end face sealing gasket 8 is arranged at the other end of the valve body 3.1 to achieve end face sealing of the valve body 3.1. A plurality of end face flow channel openings 3.4 are arranged on the end face of the valve body 3.1 adjacent to the end face sealing gasket 8. The inner circle of the valve body 3.1 is provided with a plurality of end face flow channel openings 3.4. A plurality of valve body central flow channel openings 3.3 are arranged at intervals along the circumference of the upper surface, and the valve body central flow channel openings 3.3 are communicated with the corresponding end face flow channel openings 3.4 through through holes penetrated in the wall of the valve body 3.1, and the valve body central flow channel openings 3.3 and the end face flow channel openings 3.4 are arranged one by one, and windows 8.1 penetrating the end face sealing gasket 8 are respectively arranged at positions corresponding to the end face flow channel openings 3.4 on the end face sealing gasket 8, and the edge of the end face sealing gasket 8 is embedded in the sealing groove opened on the bottom surface of the valve body 3. The end face sealing gasket 8 is fixedly connected to the valve body 3.1, and the bushing 9 is first placed in the mold and injection molded together with the valve body. After the molding or valve body injection molding is completed, it is assembled. The bushing 9 improves the strength of the valve body installation position. The valve core 6 is rotatably set in the cavity defined by the valve cover 2 and the valve body 3.1. The transmission shaft 6.2 at one end of the valve core 6 passes through the valve cover 2 and is connected to the output gear of the actuator assembly 1. A shaft seal 5 is set at the position corresponding to the valve cover 2 and the transmission shaft 6.2. A shaft seal installation hole 2.1 is set at the side of the valve cover 2 facing the shaft seal 5 and at the position corresponding to the shaft seal 5. The shaft seal 5 is set to ensure the sealing of the matching position between the valve cover 2 and the transmission shaft 6.2. The actuator assembly 1 is screwed on the valve body 3.1. The valve core 6 and the valve body 3.1 are screwed together. .1, a dynamic sealing gasket 7 is arranged between the valve body 3.1, and the dynamic sealing gasket 7 includes a dynamic sealing gasket body 7.1 matched with the cavity wall of the valve body 3.1, and a flow port 7.5 penetrating the dynamic sealing gasket 7 is arranged at a position on the dynamic sealing gasket body 7.1 corresponding to the central flow channel opening 3.3 of the valve body, and the valve core 6 includes a valve core body 6.3, and the valve core body 6.3 is similar to a cylindrical structure, and two arc-shaped flow channels 6.1 penetrating the outer circumferential surface of the valve core 6 are arranged at the lower part of the valve core body 6.3. When working, the actuator assembly 1 drives the valve core 6 to rotate, and the flow channel 6.1 connects two different sets of valve body central flow channel openings 3.3 on the valve body 3, so as to realize the flow channel 6.1 is connected, disconnected or proportionally adjusted in flow rate. The electric-controlled multi-way valve cooperates with the actuator assembly to realize automatic action according to the program instructions of the vehicle ECU or the host computer, and accurately controls the valve opening and the stop angle position of the valve core. The actuator assembly 1 feeds back the valve core position to the ECU or the host computer. It should be noted here that the actuator assembly 1 adopts the existing technology, and the transmission method of the actuator assembly 1 driving the valve body 3 also adopts the existing technology. Therefore, the structure of the actuator assembly 1 and the transmission method of the actuator assembly 1 driving the valve body 3 are not described in detail. The electric-controlled multi-way valve of the utility model occupies a small space, has a low cost, is sensitive to adjustment, and is easy to control. .

[0025] like Figure 4 , Figure 6 and Figure 8 As shown, as an optional design, the electrically controlled multi-way valve is preferably used, and the two flow channels 6.1 are independently arranged on both sides of the central axis of the valve core 6, and nine valve body central flow channel openings 3.3 are arranged at intervals along the circumferential direction on the inner circumferential surface of the valve body 3.1, and nine end surface flow channel openings 3.4 are correspondingly arranged for the nine valve body central flow channel openings 3.3. The nine end surface flow channel openings 3.4 are numbered as follows: 1, 1, 2, 3, 4, 4, 4, 5, 6, wherein two end surface flow channel openings 3.4 numbered 1 are connected, and three end surface flow channel openings 3.4 numbered 4 are connected, and by rotating the valve core 6 at different angles, the two flow channels 6.1 are connected to two groups of corresponding different valve body central flow channel openings 3.3 on the valve body 3, respectively, with sensitive adjustment and convenient control, realizing not limited to the following six types of connection modes:

[0026] Mode I, the end face flow passages numbered 1-6 and 4-3 are connected;

[0027] Mode II, the end face flow channels numbered 1-5 and 4-2 are connected;

[0028] Mode III, the end face flow passages numbered 6-4 and 3-1 are connected;

[0029] Mode IV, the end face flow passages numbered 5-4 and 2-1 are connected;

[0030] Mode V, the end face flow passages numbered 5-1 and 3-4 are connected;

[0031] Mode VI, the end face flow passages numbered 3-1 and 5-4 are connected;

[0032] It should be noted here that since the two end face flow channel openings 3.4 numbered 1 are connected and the three end face flow channel openings 3.4 numbered 4 are connected in the utility model, the purpose of six-way valves can be achieved by rotating the valve core 6 at different angles. In actual work, according to work needs, the functions of a five-way, seven-way, eight-way or nine-way valve can be achieved by increasing or reducing the connections at these positions of the end face sealing gasket.

[0033] like Figure 2and Figure 7 As shown, as an optional design, the electrically controlled multi-way valve is preferably used, and the dynamic sealing gasket 7 is a double-layer structure, including an inner layer facing the valve core 6 and an outer layer facing the valve body 3. The inner layer material is PTFE (polytetrafluoroethylene) with lubricating properties, and the outer layer material is EPDM (ethylene propylene diene monomer rubber). The inner layer and the outer layer are compositely connected or adhesively connected. The inner layer material has lubricating properties, and contact with the valve core is conducive to reducing the torque of the valve core; the outer layer is EPDM in contact with the valve body. After assembly, the valve body and the valve core cooperate to squeeze the dynamic sealing gasket to form a certain amount of compression, which can prevent leakage between the flow channels.

[0034] like Figure 3 , Figure 5 and Figure 7 As shown, as an optional design, the electrically controlled multi-way valve is preferably provided with a plurality of grooves 7.4 at circumferential intervals on the edges of the upper and lower end surfaces of the dynamic sealing gasket 7, and dynamic sealing gasket limit blocks A2.2 matching the grooves 7.4 are respectively provided at positions corresponding to the grooves 7.4 on the valve cover 2, and dynamic sealing gasket limit blocks B3.2 matching the grooves 7.4 are respectively provided at positions corresponding to the grooves 7.4 at the bottom of the valve body 3.1, and the dynamic sealing gasket limit blocks A2.2 and B3.2 are protrusions matching the grooves 7, and the dynamic sealing gasket limit blocks A2.2 and B3.2 cooperate to realize the positioning of the dynamic sealing gasket 7.

[0035] like Figure 5 and Figure 7 As shown, as an optional design, the electrically controlled multi-way valve is preferably provided with a plurality of sealing ribs A7.2 extending along the axial direction thereof at intervals along the circumferential direction on the outer circumferential surface of the dynamic sealing gasket 7 to improve the strength and sealing performance of the dynamic sealing gasket 7, and a positioning groove is provided at a position corresponding to the sealing rib A7.2 on the valve body 3.1 to realize the positioning of the dynamic sealing gasket 7.

[0036] like Figure 5 and Figure 7 As shown, as an optional design, the electrically controlled multi-way valve is preferably provided with a plurality of sealing ribs B7.3 extending along the circumference thereof at upper and lower intervals on the outer cylindrical surface of the dynamic sealing gasket 7 to improve the strength and sealing performance of the dynamic sealing gasket 7, and an annular groove is provided at a position corresponding to the sealing ribs B7.3 on the valve body 3.1 to realize the positioning of the dynamic sealing gasket 7.

[0037] The working process of the utility model is as follows:

[0038] According to work needs, the actuator assembly 1 drives the valve core 6 to rotate a certain angle, and the flow channel 6.1 connects the two groups of different valve body central flow channel openings 3.3 on the valve body 3 to achieve connection, disconnection or proportional adjustment of the flow channel 6.1. The electronically controlled multi-way valve cooperates with the actuator assembly to realize automatic action according to the program instructions of the vehicle ECU or the host computer, and accurately controls the valve opening and the stop angle position of the valve core. The actuator assembly 1 feeds back the valve core position to the ECU or the host computer. The actuator assembly 1 has a self-learning function. During the initial operation, it can self-learn and memorize the stroke and position of the valve core according to the physical limit. There is no need to learn again after each power-on and power-off. It is easy to operate. The electronically controlled multi-way valve occupies a small space, has a low cost, is sensitive to adjustment, is easy to control, and has reliable sealing, which meets the needs of the thermal management system.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. An electrically controlled multi-way valve, comprising an actuator assembly, a valve body and a valve core, characterized in that: The valve body comprises a valve body body of a hollow cylindrical structure, a valve cover is arranged at one end of the valve body body, an end face sealing gasket is arranged at the other end of the valve body body, a plurality of end face flow passage openings are arranged on the end face of the valve body body adjacent to the end face sealing gasket, a plurality of valve body central flow passage openings are arranged at intervals along the circumferential direction on the inner circumferential surface of the valve body body, the valve body central flow passage openings are respectively communicated with the corresponding end face flow passage openings through through holes penetrated in the side wall of the valve body body, windows penetrating the end face sealing gasket are respectively arranged at positions corresponding to the end face flow passage openings on the end face sealing gasket, and the valve core is rotatably arranged on the valve cover. When the spool is in the air, the actuator is turned on and the valve core is depressed into the air gap, the actuator then moves the valve body in an opposite direction, and the actuator is turned off, the valve core is in a state of being ...

2. The electrically controlled multi-way valve according to claim 1, characterized in that: The two flow channels are independently arranged on both sides of the center axis of the valve core.

3. The electrically controlled multi-way valve according to claim 1 or 2, characterized in that: The sealing gasket is a double-layer structure, including an inner layer facing the valve core and an outer layer facing the valve body. The inner layer is made of PTFE, a material with lubricating properties, and the outer layer is made of EPDM. The inner layer and the outer layer are compositely connected.

4. The electrically controlled multi-way valve according to claim 3 is characterized in that: A plurality of grooves are arranged at intervals along the circumferential direction on the edges of the upper and lower end surfaces of the dynamic sealing gasket, and dynamic sealing gasket limiting blocks matching the grooves are respectively arranged at positions corresponding to the grooves on the valve body and the valve cover.

5. The electrically controlled multi-way valve according to claim 3 is characterized in that: A plurality of sealing ribs A extending along the axial direction are arranged at intervals along the circumferential direction on the outer circumferential surface of the dynamic sealing gasket.

6. The electrically controlled multi-way valve according to claim 3, characterized in that: A plurality of sealing ribs B extending along the circumference are arranged at intervals above and below the outer circumferential surface of the dynamic sealing gasket.

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