CN115163876A

CN115163876A - Electromagnetic control valve

Info

Publication number: CN115163876A
Application number: CN202210425275.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Hangzhou Sanhua Research Institute Co Ltd
Current assignee: Hangzhou Sanhua Research Institute Co Ltd
Priority date: 2014-09-18
Filing date: 2014-09-18
Publication date: 2022-10-11
Also published as: CN105422915A

Abstract

An electromagnetic control valve comprises a valve body, a valve core and a rotor component; the electromagnetic control valve comprises an inlet and at least one outlet, the inlet is directly communicated with the inner cavity, and the communication between the outlet and the inner cavity can be controlled by the action of the electromagnetic control valve; the rotor of the rotor part includes a rotor body part and an even number of rotor salient poles; the stator of the stator component comprises a stator body part and an even number of stator salient poles, each stator salient pole is wound with a winding, the stator salient poles are close to the rotor salient poles relative to the stator body part, and the rotor salient poles are close to the stator salient poles relative to the rotor body part; when the electromagnetic control valve acts, the plurality of windings of the stator component are respectively electrified according to a certain sequence, so that the rotor component rotates, and the valve core is driven to rotate, so that the outlet is communicated or not communicated with the inner cavity. The rotor part can not need to use the rotor that permanent magnet material made like this, and the stator part that adopts this kind of structure can make the location when the rotor part rotates more accurate with the rotor part.

Description

Electromagnetic control valve

The application is a divisional application of patent applications with application date of 2014, 09, 18, and application number of 201410479494.6, and invented name of "one kind of electromagnetic control valve".

[ technical field ] A method for producing a semiconductor device

The present invention relates to a fluid control element, and more particularly to a solenoid operated valve for controlling the opening and closing of an outlet or a valve for distributing fluid flow between a plurality of outlets.

[ background of the invention ]

The electromagnetic control valve is often used in a system, such as a switch type electromagnetic control valve or an electromagnetic control valve used for distributing flow of a plurality of outlets, and the switch type electromagnetic control valve is used for controlling the on-off of fluid; the electromagnetic control valve for distributing a plurality of outlet flows is an element for controlling the on-off switching of fluid or the flow size in a flow path, and can be used in a freezing refrigerator or a temperature-changing refrigerator, for controlling the switching of a refrigerant flow path when a plurality of refrigerant flow paths are formed, or for distributing the refrigerant with a plurality of paths and the like. Generally, an electromagnetic control valve usually adopts reciprocating action of an electromagnetic iron core to perform opening or closing control, but the flow aperture of a switch type electromagnetic valve cannot be too large due to the problem of electromagnetic force, and some larger electromagnetic control valves adopt a pilot type structure, so that the structure is relatively complex; in addition, the solenoid valve generally used for distributing or controlling flow usually uses a stepping motor to control the rotation of the valve core, and the rotor component is generally made of a permanent magnetic material and is magnetized, so that the permanent magnetic material is relatively brittle and has high cost. In addition, the stepping motor may lose step or jump step when the valve rotates.

[ summary of the invention ]

The invention aims to provide an electromagnetic control valve with a novel structure, which has a simple structure, can be used for multiple purposes, and does not need to use a rotor part made of permanent magnetic materials, so that the invention adopts the following technical scheme:

a solenoid control valve comprises a valve body part and a stator part, wherein the valve body part comprises a valve core and a rotor part; the valve core is provided with a conducting channel, the electromagnetic control valve comprises an inlet and at least one outlet, and the inlet is directly communicated with the inner cavity; the stator component at least comprises a first group of stator salient poles and a second group of stator salient poles, each group of stator salient poles are symmetrically arranged and correspondingly wound with windings, each stator salient pole is wound with one winding, and the windings of each group of stator salient poles are arranged in series or in parallel; the rotor components including at least a first set of salient rotor poles, a second set of salient rotor poles;

when an electromagnetic control valve acts, windings wound on one group of stator salient poles are simultaneously electrified, when the windings are electrified, the windings wound on the first group of stator salient poles are controlled to be electrified, the first group of stators corresponding to the first group of stator salient poles are excited, the windings wound on the second group of stator salient poles are controlled to be powered off and demagnetized, at the moment, the first group of rotor salient poles and the first group of stator salient poles attract each other and are relatively fixed in position, and the conducting channel is communicated with or covers the at least one outlet;

then, without changing the current direction, controlling the power-off of the windings wound on the first group of stator salient poles, demagnetizing the first group of stators, controlling the energization of the windings of the second group of stator salient poles ordered clockwise or anticlockwise, exciting the second group of stators corresponding to the second group of stator salient poles, rotating the rotor of the rotor component clockwise or anticlockwise by an angle, enabling the second group of rotor salient poles and the second group of stator salient poles to attract each other relatively and to be fixed relatively in position, and switching the conduction channel from one state of communicating or covering the at least one outlet to the other state;

and electrifying the at least two groups of stator windings by corresponding quantity according to the sequence, so that the rotor part correspondingly rotates by corresponding angle clockwise or anticlockwise, and the valve core is driven to rotate together when the rotor part rotates, thereby controlling the selective communication between the outlet of the electromagnetic control valve and the inner cavity through the conducting channel of the valve core.

The utility model provides a technical scheme's solenoid electric valve, the rotation action direction of rotor part only need change the winding circular telegram the excitation order can, and irrelevant with the current direction of winding, how many angles need rotate, then carry out circular telegram corresponding quantity for the winding according to the excitation order, solenoid electric valve can realize clockwise or anticlockwise two directions's rotation in addition, and because the interaction between the salient pole in the stator part, the rotor part, the location of rotor part can be more accurate, thereby ensure solenoid electric valve's normal operating.

[ description of the drawings ]

FIG. 1 is a cross-sectional schematic view of one embodiment of a solenoid control valve of the present invention;

FIG. 2 is a schematic view of the solenoid control valve of FIG. 1 taken along the line A-A, with the winding portions not shown in detail;

FIG. 3 is a schematic diagram of a valve cartridge of the solenoid control valve of FIG. 1 viewed from below;

FIG. 4 is a schematic cross-sectional view of the valve body components of the solenoid control valve of the present invention;

FIG. 5 is a schematic view of the valve body components of FIG. 4 in section taken in the direction B-B;

FIG. 6 is a schematic illustration of four operating positions of the valve body member of the solenoid control valve of FIG. 4;

FIG. 7 is a schematic illustration of several positions of motor energization of the solenoid control valve of the present invention;

FIG. 8 is a cross-sectional schematic view of an additional embodiment of a solenoid control valve of the present invention;

FIG. 9 is a cross-sectional schematic view of yet another embodiment of the solenoid control valve of the present invention;

fig. 10 is a schematic view of the valve cartridge of fig. 9 from below.

The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. In the drawings, like reference characters designate identical or corresponding parts throughout the several views.

[ detailed description ] embodiments

The invention is further described with reference to the following figures and specific examples. Referring to a solenoid-operated valve for distributing a plurality of outlet flows or for controlling a plurality of outlet flows, as shown in fig. 1 to 3, the solenoid-operated valve of the present embodiment is a distributing valve having one inlet and a plurality of outlets, and includes a valve body part 1 and a stator part 2. The valve body component 1 comprises a valve body 50, a sleeve 55, a valve core 56 and a rotor component 3, the valve body 50 and the sleeve 55 are hermetically arranged by welding, an inner cavity 10 is formed in the valve body component, and the rotor component 3 and the valve core 56 are movably arranged in the inner cavity 10; the stator component 2 is sleeved on the sleeve 55 of the valve body component and is relatively fixed through a limiting device. The valve body component 1 is provided with an inlet connecting pipe 504 and at least two outlet connecting pipes 505, the inlet connecting pipe 504 is communicated with the inner cavity 10 of the valve body component through the inlet 502, the outlet connecting pipes 505 are selectively communicated with the inner cavity 10 through the outlets with the corresponding number and the conducting channels arranged on the valve core 56, and the outlet connecting pipes 505 can also be selectively communicated with the inner cavity 10 through the conducting channels formed by the outlets with the corresponding number and the valve core 56 and the valve body. If the corresponding outlet 503 is in communication with the communication passage of the spool 56, the outlet is in full communication with the cavity 10; when the corresponding outlet is not communicated with the communication channel of the valve core 56, the outlet is not basically communicated with the inner cavity 10, that is, the outlet has no flow basically or only partial communication, that is, the outlet has a basic flow, which can be specifically set according to the needs of the system. The number of outlets can be 2, 3 or 4, etc., and the number is also set according to the system requirement, that is, according to the number of flow distributed by the system requirement.

The valve body part 1 further comprises a sleeve 51, an elastic element 53, a balance pad 54. The valve body 50 is provided with a flat surface 501 at one end close to the inner cavity 10, or the flat surface 501 is arranged towards the inner cavity, and the valve core 56 is attached to the flat surface 501; the rotor part 3 comprises a rotor 31, a rotating shaft 32 and a transmission part 33, the rotor 31 and the rotating shaft 32 are relatively fixed in a tight fit or welding mode, and the transmission part 33 is fixed on the rotor 31; one end of the rotating shaft 32 far from the valve body is rotatably limited on the sleeve 55 through the shaft sleeve 51, and the other end of the rotating shaft 32 is rotatably limited on the valve body 50, so that the rotor component 3 is relatively fixed rotatably. One end of the rotating shaft 32 close to the valve body sequentially passes through the balance pad 54 and the valve core 56 to make the end portion extend into the limiting hole of the valve body 50, and an elastic element 53 is further disposed between the balance pad 54 and the rotor component 3, in the embodiment, the elastic element 53 is a compression coil spring, one end of the elastic element 53 abuts against the balance pad 54, the other end of the elastic element abuts against a plane of the rotor component, the balance pad 54 abuts against the valve core 56, and accordingly, the elastic force of the elastic element 53 is relatively and uniformly applied to the valve core 56. One end of the transmission part 33 of the rotor part 3 is fixed on the rotor or the rotating shaft, and the other end extends into the valve core 56 or is positioned in the concave part of the valve core 56, when the rotor part rotates, the part or the concave part of the valve core, which is contacted with the transmission part 33, is used as a transmission part, when the rotor part 3 rotates, the valve core 56 rotates along with the rotor part along with the contact of the transmission part of the valve core 56 and the transmission part, so that the conduction switching among a plurality of outlets is realized, and the distribution of flow among the outlets is realized. In order to ensure the accuracy of each outlet position, especially to reset the rotor component when there is an abnormality in the system, the valve body component in this embodiment further includes a limiting mechanism, the limiting mechanism includes a retaining element 58 fixedly disposed with the rotor component 3 and a limiting element 57 fixedly disposed with the valve body 50, so that the rotor component rotates and the retaining element 58 abuts against the limiting element 57, thereby resetting the rotor component is achieved, and the accuracy of the position of the rotor component is ensured. In order to make the contact sound when the retainer 58 collides against the retainer 57 relatively smaller, the retainer 57 may include a retaining core 571, the retaining core 571 is a metal structure and is tightly fitted with the valve body, in addition, the retaining core 571 may also be fixed by welding or the like, and then a noise reduction member 572 is sleeved outside the retaining core 571, and the noise reduction member is made of a non-metal material such as a plastic material, so that the strength of the retainer is ensured, and the contact noise is reduced. The valve core can be made of PPS or PTFE material.

The rotor 31 includes a rotor body 310, and a plurality of rotor salient poles protruding outward along the rotor body 310, that is, the rotor salient poles protrude toward the stator part along the rotor body 310 or protrude outward in the radial direction; the salient poles of the rotor are uniformly arranged along the radial direction, in the embodiment, the motor is a reluctance motor with a four-phase (8/6) structure, and the rotor 31 comprises 6 salient poles which protrude outwards, namely towards the stator: 311. 312, 313, 314, 315, 316, wherein the two oppositely disposed rotor salient poles form a set of rotor salient poles: for example, the rotor salient pole 312 and the oppositely disposed rotor salient pole 315, the rotor salient pole 311 and the oppositely disposed rotor salient pole 314, and the rotor salient pole 313 and the oppositely disposed rotor salient pole 316 are three sets of rotor salient poles, respectively. The rotor connecting portion 317 is fixed to the rotation shaft 32 in a close fit, for example, by a tight fit, and may be further fixed by reinforcing by welding or deforming one by crimping. In order to ensure that the punched surface of the rotor does not rust and corrode, the rotor can be subjected to corrosion prevention treatment in a mode of painting, electrophoresis or the like, so that an anticorrosive layer is formed on the surface. Similarly, the surface of the stator may be treated for corrosion protection by electrophoresis or painting.

The stator component 2 is located outside the valve body component, specifically outside the sleeve 55 of the valve body component in the embodiment and fixed with the valve body component, and the stator component 2 comprises a stator 21, an outer insulating layer 22 and a plurality of groups of windings 23. The motor in the present embodiment is a reluctance motor of a four-phase (8/6) structure in which a stator includes a stator base 210 and four sets of stator salient poles: a first set of stator salient poles 211, 211', a second set of stator salient poles 212, 212', a third set of stator salient poles 213, 213', a fourth set of stator salient poles 214, 214', i.e., 8 stator salient poles; the stator salient poles are uniformly and symmetrically arranged and protrude inwards from the base of the stator, namely towards the direction of the rotor; the stator salient pole is formed by punching a silicon steel sheet and then fixing the silicon steel sheet by a rivet, or is bent firmly after a buckle groove is formed at the end part of the punched silicon steel sheet, or a part protruding out of one punching sheet and a part recessed into the next punching sheet are buckled together to form a buckle connection, and in addition, the stator salient pole can be welded and fixed after punching; the stator and the rotor can also be processed by powder metallurgy of soft magnetic materials. Each group of stator salient poles are symmetrically arranged and wound with windings, each stator salient pole is provided with one winding, and the two windings of each group of stator salient poles are arranged in series; alternatively, the two windings may be connected to each other by a circuit, so that the two windings are arranged in parallel. The stator wound with the plurality of groups of windings forms an outer insulating layer 22 through injection molding so as to protect circuit components such as the windings and the like; in addition, an insulating sleeve can be sleeved outside to protect electric devices such as a winding and the like. In the present embodiment, the inner insulating layer 24 is firstly sleeved on each set of stator salient poles, and the inner insulating layer 24 may be an insulating plastic part formed by injection molding; then winding a winding on the inner insulating layer, and leading out the winding through a connecting wire; the windings of each group are wound together or separately and then connected. The outer insulating layer 22 may cover only the radial outer side and the axial outer side of the stator and the winding and fill the space between each set of the stator salient poles and the winding, but not cover the inner side wall of the stator part 2 close to the sleeve in the radial direction, so that the gap between the inner side wall 215 of the stator salient pole and the outer side wall 318 of the rotor 31 in each phase can be reduced, and the power of the motor can be improved. Alternatively, the stator part 2 may be coated with a thinner injection layer, such as between 0.2mm and 0.7mm, more preferably between 0.3mm and 0.5mm, on the inner side wall of the radial direction close to the sleeve during injection, so as to ensure that the inner side wall of the stator is covered by the insulation layer, and the gap between the inner side wall 215 of the stator salient pole and the outer side wall 318 of the rotor 31 is not increased too much. In addition, the sleeve can be made of stainless steel materials, so that the wall thickness of the sleeve can be relatively thin, namely, the distance between the two magnetic conductive ends of the stator salient pole and the rotor salient pole can be reduced, and the magnetic resistance is reduced. The distance between the inner wall surface of the stator salient pole and the outer wall of the sleeve of the stator component is less than or equal to 0.2mm, so that the magnetic resistance is relatively small, and when the surface of the stator salient pole is provided with coatings or injection layers such as electrophoresis, the distance between the stator salient pole and the outer wall of the sleeve refers to the distance between the cambered surface of the stator salient pole with the coatings or the injection layers, which is close to the outer wall part of the sleeve, and the outer wall of the sleeve, namely the distance between the outer wall surface of the stator salient pole with the coatings or the injection layers and the outer wall of the sleeve; also, the distance between the outer wall of the rotor component at the location of the salient rotor pole and the inner wall of the sleeve is less than or equal to 0.3mm, also to reduce the reluctance, and here the distance between the salient rotor pole and the inner wall of the sleeve also refers to the distance between the cambered surface of the salient rotor pole with the paint or electrophoretic layer near the inner wall of the sleeve and the inner wall of the sleeve.

The valve element 56 in this embodiment includes a transmission portion 561 for cooperating with the transmission member 33 of the rotor member 3, a communication passage 562, and a through hole 563. The transmission part 561 is a missing part, after the assembly is completed, the transmission part 33 is partially located in the transmission part 561, and when the rotor part 3 rotates, the components such as the valve core and the like are driven to rotate by the contact between the transmission part 33 and the transmission part 561. In addition, one end of the rotating shaft 32 of the rotor component 3 facing the valve body 50 is inserted into the limiting hole of the valve body 50 through the through hole 563, so that the flat surface of the valve core 56 facing the valve body 50 is in contact with the flat surface of the valve body 50 facing the inner cavity 10; meanwhile, a corresponding conduction part 541 is also arranged at the part of the balance pad 54 opposite to the valve core conduction channel; the conducting channel 562 is also a lacking part, so that if the outlet 503 (B, C, D) in the flat surface 501 of the valve body 50 is located at the corresponding position of the conducting channel 562, the outlet can be communicated with the inner cavity 10 through the conducting channel 562 and the conducting part 541 of the balance pad 54, and the inlet 502 is communicated with the inner cavity 10, so that the outlet is communicated with the inlet; while the other outlets covered by the plane of the spool 56 cannot be in direct communication with the inner chamber, thus achieving a closed or semi-closed condition; if the outlet flow rate is to be relatively small, i.e., substantially closed, the flat surface of the valve element 56 facing the bottom plane of the valve body 50 and the flat surface of the valve body 50 can be both flat, i.e., the gap therebetween is small, i.e., substantially flush; if the outlets are closed, a certain basic flow rate is still maintained, i.e. the outlets are in a semi-closed state, then a recess can be provided between the flat surface of the valve element 56 facing the valve body 50 and the flat surface of the valve body 50 at the position of the outlets, and the recess is communicated with the inner cavity, the recess can be provided on the flat surface of the valve element 56 facing the valve body 50, or can be provided at the position of the outlets 503 (B, C, D) in the flat surface of the valve body 50, and a small channel is provided to communicate the recess with the inner cavity, so that even if the outlets are not communicated with the inlets through the communication channels, a certain basic flow rate can be maintained, i.e. even if some outlets are not selectively communicated, a certain basic flow rate can be maintained. In addition, the outlet is realized by arranging a conducting channel similar to a notch form on the valve core 56 in the above mode, and the conducting channel can also be in other forms, for example, an inward annular groove is arranged on the bottom plane of the valve core 56 facing the valve body 50, and a conducting notch is arranged beside the groove and communicated with the inner cavity, so that the purpose of controlling conduction can be realized, and a conducting part can not be arranged on the balance pad.

One specific embodiment is described below, as shown in fig. 4, 5, and 6. The electromagnetic control valve of this embodiment is specifically a one-inlet-three-outlet distribution valve, and includes an inlet connection pipe 504 and three outlet connection pipes 505 (B, C, D), where the inlet connection pipe 504 is communicated with the inner cavity 10 through the inlet 502, and the three outlet connection pipes 505 (B, C, D) are selectively communicated with the inner cavity 10 through respective outlet 503 (B, C, D) and a conduction channel of the valve core. The valve body 50 is provided with three outlets 503 (B, C, D) facing the inner cavity 10, the three outlet connection pipes 505 (B, C, D) are respectively communicated with the three outlets, and when the valve core 56 rotates along with the rotor component, the conduction channels 562 of the valve core 56 can respectively realize four different communication modes, so that four different working modes are realized: the first working position: the outlet B is communicated with the conduction channel, and the outlet C, D is not communicated with the conduction channel; the second working position is as follows: B. the outlet C is communicated with the conduction channel, and the outlet D is not communicated with the conduction channel; the third working position: C. the outlet D is communicated with the conduction channel, and the outlet B is not communicated with the conduction channel; the fourth working position: the outlet D is communicated with the conducting channel, and the outlet B, C is not communicated with the conducting channel. Other aspects of this embodiment are similar to the above embodiment and will not be repeated here.

In the above embodiments, the solenoid control valve is rotated in a manner as shown in fig. 7. FIG. 7 is a schematic view of the positions of the rotor components when the stator phase A → D → C → B windings are energized in sequence; taking the relative position of the stator and the rotor in the figure as an initial position, under one phase A-A ', the stator A-A' is excited, the windings on the stator salient poles 213 and 213 'are electrified, the rotor salient poles 313 and 316 attract the stator salient poles 213 and 213' and the position is relatively fixed, and the magnetic resistance is relatively minimum; next, the windings on the stator salient poles 213, 213 'are de-energized and de-magnetized, the windings on the stator salient poles 212, 212' are energized, and the stator D-D 'is excited, at which time the rotor rotates counterclockwise by about 15 °, so that the rotor salient poles 312, 315 and the stator salient poles 213, 213' are relatively attracted and relatively fixed in position; then, the windings on the stator salient poles 212, 212 'are de-energized and de-magnetized, the windings on the stator salient poles 211, 211' are energized, the stator C-C 'is excited, at this time, the rotor rotates counterclockwise by about 15 °, the rotor salient poles 311, 314 and the stator salient poles 211, 211' are relatively attracted and relatively fixed in position; then, the windings on the stator salient poles 211, 211 'are de-energized and the stator salient poles 214, 214' are energized, the stator B-B 'is excited, at this time, the rotor rotates counterclockwise by about 15 °, the rotor salient poles 316, 313 and the stator salient poles 214, 214' are relatively attracted and relatively fixed in position; in this way, the rotor is rotated counterclockwise. Conversely, if the stator is energized with the phase A → B → C → D winding, the rotor rotates clockwise by a corresponding angle. Namely, the rotation action direction of the rotor part of the electromagnetic control valve only needs to change the excitation sequence of the energization of the winding, and is irrelevant to the current direction of the winding. If the rotation is required by a certain angle, the corresponding number of windings are electrified according to the excitation sequence. And the electromagnetic control valve can realize the rotation in two directions, and the positioning of the rotor part can be more accurate due to the interaction between the salient poles in the stator part and the rotor part, thereby ensuring the normal operation of the electromagnetic control valve.

The motor in the above-described embodiment is a reluctance motor of a four-phase (8/6) structure in which the number of stator salient poles is different from that of rotor salient poles, i.e., the number of stator salient poles is 8 and the number of rotor salient poles is 6. In addition, the motor can also be a reluctance motor with a three-phase (12/8) structure, namely 12 stator protrusions and 8 rotor protrusions, at the moment, each group of stator protrusions is 4, 4 windings are electrified simultaneously when each excitation phase is electrified, the 4 windings can be connected in series or in parallel, and in addition, two opposite windings can be connected in series and then in parallel; alternatively, a reluctance machine of three-phase (6/4) construction is possible, i.e. 6 stator lobes and 4 rotor lobes, likewise in groups of two stator lobes. It can also be seen from the above that the number of stator salient poles is different from the number of rotor salient poles.

Another embodiment is described below, with reference to fig. 8. In this embodiment, the inner insulating layer between the stator 21a of the stator component 2a and the winding is formed by coating an insulating layer, such as an epoxy coating layer 24a, on the corresponding portion of the stator for winding the winding, and then winding the winding, so that the thickness of the inner insulating layer can be relatively thin. In addition, the insulation between the winding and the stator can be insulated and isolated by arranging insulating paper. Otherwise, reference is made to the other embodiments described above.

When the number of the outlets is two, the electromagnetic control valve of the invention can realize the control of the functions of opening one switch, opening two fully and closing two fully, and the specific implementation mode can refer to the above-described embodiment, for example, only one of the outlets in the schemes of fig. 5 and 6, such as the outlet B or the outlet D, is eliminated; in addition, if the system does not need two outlets to be opened or closed at the same time, the corresponding middle outlet C can be cancelled, and in addition, the system can also be realized by shortening the conduction channel; therefore, the electromagnetic control valve of the embodiment of the invention can meet the requirements of various combinations, is suitable for different purposes such as a distribution valve, a switch valve or a switching valve, and is relatively simple in design and manufacture.

The above-described embodiments are directed to the solenoid-operated valve having more than two outlets, and may also be a solenoid-operated valve having only one outlet, that is, a switch-type solenoid-operated valve that performs on-off control by rotation, as shown in fig. 9 and 10. The solenoid control valve comprises a valve body part 1 and a stator part 2a. The valve body component 1 comprises a valve body 50, a sleeve 55, a valve core 56a and a rotor component 3, the valve body 50 and the sleeve 55 are hermetically arranged by welding, and an inner cavity 10 is formed in the valve body component, the rotor component 3 and the valve core 56a are rotatably arranged in the inner cavity 10, or the rotor component 3 and the valve core 56 can rotate or rotate by corresponding angles under the action of electromagnetic force of the electromagnetic control valve; the stator component 2 is sleeved on the sleeve 55 of the valve body component and is relatively fixed through a limiting device. The valve body component 1 is provided with an inlet connecting pipe 504 and an outlet connecting pipe 505, and the inlet connecting pipe 504, the outlet connecting pipe 505 and the valve body 50 are fixed by welding; the inlet connection pipe 504 is communicated with the inner cavity 10 of the valve body component through the inlet 502, the outlet connection pipe 505 is selectively communicated with the inner cavity 10 through the outlet 503a and a conducting channel 562a arranged on the valve core 56a, when the conducting channel 562a of the valve core 56a is communicated with the outlet 503a, the electromagnetic control valve is opened, when the conducting channel 562a of the valve core 56a is not communicated with the outlet 503a, the bottom plane of the valve core covers the position of the outlet 503a, and the electromagnetic control valve is closed. The structure can be suitable for the electromagnetic valve with a relatively large caliber, and the electromagnetic driving mode with the structure is adopted, so that the required electromagnetic power consumption is relatively low. The structure of the rotor part and the stator part can refer to the above embodiments, and will not be repeated here. In addition, the structure can also be used for two outlets, and the main difference is that only one outlet is added on the valve body, and the conducting channel of the valve core is adjusted according to the requirement; therefore, the two outlets can be selectively communicated and controlled, and the electromagnetic control valve can realize four main working states of opening one switch, two full-openings and the like in the two outlets only by controlling the rotation of the rotor component to drive the rotation of the valve core.

The invention can not adopt permanent magnets as a part of the rotor component, namely the use of permanent magnet materials can be cancelled to realize the function of regulating and controlling the electromagnetic control valve, and the same invention scheme can realize the control valve with multiple purposes, the design of the control valve is relatively easy to manufacture, the invention can be suitable for systems with multiple purposes, and the invention can be combined and adjusted according to the needs of the systems; by adopting the technical scheme of the invention, the heating value of the electromagnetic control valve is relatively small, and the electromagnetic control valve is more suitable for occasions with relatively severe environmental conditions; and the relative positioning between the rotor salient pole and the stator salient pole ensures that the positioning accuracy of the rotor component is relatively high, thereby ensuring the position accuracy in on-off control or flow distribution.

It should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention may be modified or substituted by equivalents, and all technical solutions and modifications which do not depart from the spirit and scope of the present invention should be covered by the claims of the present invention.

Claims

1. An electromagnetic control valve comprising a valve body part (1) and a stator part (2), the valve body part (1) comprising a valve spool (56), a rotor part (3); the valve core (56) is provided with a conducting channel (562), the electromagnetic control valve comprises an inlet and at least one outlet, and the inlet is directly communicated with the inner cavity (10); the stator component (2) at least comprises a first group of stator salient poles (211, 211 ') and a second group of stator salient poles (212, 212'), each group of stator salient poles are symmetrically arranged and correspondingly wound with windings (23), each stator salient pole is wound with one winding (23), and the windings (23) of each group of stator salient poles are arranged in series or in parallel; the rotor component (3) comprising at least a first set of rotor salient poles (311, 314), a second set of rotor salient poles (312, 315);

when the electromagnetic control valve acts, a winding (23) wound on one group of stator salient poles is electrified simultaneously, when the windings (23) are electrified, the winding wound on a first group of stator salient poles (211, 211 ') is controlled to be electrified, the first group of stator corresponding to the first group of stator salient poles (211, 211') is excited, the winding wound on a second group of stator salient poles (212, 212 ') is controlled to be powered off and demagnetized, at the moment, the first group of rotor salient poles (311, 314) and the first group of stator salient poles (211, 211') attract each other and are relatively fixed in position, and the conducting channel (562) is communicated with or covers the at least one outlet;

then, without changing the current direction, controlling the power of the windings wound on the first set of stator salient poles (211, 211 ') to be cut off, demagnetizing the first set of stators, controlling the windings of the second set of stator salient poles (212, 212') sequenced clockwise or counterclockwise to be energized, exciting the second set of stators corresponding to the second set of stator salient poles (212, 212 '), and rotating the rotor (31) of the rotor component clockwise or counterclockwise by an angle so that the second set of rotor salient poles (312, 315) and the second set of stator salient poles (212, 212') are attracted relatively and fixed relatively, and switching the conducting channel (562) from one state of communicating with or covering the at least one outlet to the other state;

and electrifying the at least two groups of stator windings (23) according to the sequence by corresponding quantity, so that the rotor part (3) correspondingly rotates by corresponding angle clockwise or anticlockwise, and the valve core (56) is driven to rotate together when the rotor part (3) rotates, thereby controlling the selective communication between the outlet of the electromagnetic control valve and the inner cavity (10) through a conducting channel (562) of the valve core (56).

2. The electromagnetic control valve according to claim 1, wherein the electromagnetic control valve comprises at least two outlets, the stator member (2) further comprises a third set of stator salient poles (213, 213 '), and the conducting passage (562) communicates the inlet with one of the outlets when the second set of stator is controlled to be excited, and then the windings wound on the second set of stator salient poles (212, 212') are controlled to be de-energized without changing the direction of current, the second set of stator is de-magnetized, the windings of the third set of stator salient poles (213, 213 ') ordered clockwise or counterclockwise are controlled to be energized, the third set of stator salient poles (213, 213') corresponding to the third set of stator salient poles (213, 213 ') are excited, and at the time the rotor (31) is rotated clockwise or counterclockwise by an angle such that the first set of rotor salient poles (311, 314) and the third set of stator salient poles (213, 213') are relatively attracted and positionally fixed, the conducting passage (562) communicates the inlet with the other of the two outlets, and the spool (56) is provided with a gap as a part of the conducting passage (562) or a part of the conducting passage (562).

3. The solenoid control valve according to claim 2, wherein said solenoid control valve further comprises a third outlet, said stator member (2) further comprises a fourth set of salient stator poles (214, 214 '), said conducting passage (562) communicates said inlet with said first outlet when said second set of stator is controlled to be excited, then the windings wound on said second set of salient stator poles (212, 212 ') are controlled to be de-energized without changing the direction of current, said second set of stator is de-energized, the windings of said third set of salient stator poles (213, 213 ') ordered clockwise or counterclockwise are controlled to be energized, said third set of stator corresponding to said third set of salient stator poles (213, 213 ') is excited when said rotor (31) is rotated clockwise or counterclockwise by an angle such that said third set of rotor salient poles (313, 316) and said third set of salient stator poles (213, 213 ') are attracted relatively fixed in position, said conducting passage (562) communicates said inlet with said second outlet or said first outlet with said second outlet;

and then, without changing the current direction, controlling the power failure of windings wound on a third set of stator salient poles (213, 213 '), demagnetizing the third set of stators, controlling the energization of the windings of the fourth set of stator salient poles (214, 214') ordered clockwise or counterclockwise, exciting the fourth set of stators corresponding to the fourth set of stator salient poles (214, 214 '), rotating the rotor (31) clockwise or counterclockwise by an angle again, enabling the first set of rotor salient poles (311, 314) and the fourth set of stator salient poles (214, 214') to be attracted relatively and fixed relatively, and enabling the conduction channel (562) to communicate an inlet with the third outlet or simultaneously communicate the second outlet with the third outlet.

4. The electromagnetic control valve according to claim 1, wherein the electromagnetic control valve comprises at least a first outlet, a second outlet, a third outlet, the stator part (2) further comprises a third set of stator salient poles (213, 213'), the rotor part (3) further comprises a third set of rotor salient poles (313, 316), a fourth set of rotor salient poles (314, 317); when the second group of stators are controlled to be excited, the conduction channel (562) is communicated with the inlet and the first outlet, then the current direction is not changed, the power of windings wound on the second group of stator salient poles (212, 212 ') is controlled to be cut off, the second group of stators are demagnetized, the windings of the third group of stator salient poles (213, 213') which are ordered clockwise or anticlockwise are controlled to be electrified, the third group of stators corresponding to the third group of stator salient poles (213, 213 ') are excited, the rotor (31) rotates clockwise or anticlockwise for an angle, so that the third group of rotor salient poles (313, 316) and the third group of stator salient poles (213, 213') are attracted relatively and fixed in position, and the conduction channel (562) is communicated with the inlet and the second outlet or is communicated with the first outlet and the second outlet simultaneously;

and then, without changing the current direction, controlling the power failure of windings wound on a third set of stator salient poles (213, 213 '), demagnetizing the third set of stators, controlling the energization of the windings of the first set of stator salient poles (211, 211') ordered clockwise or counterclockwise, exciting the first set of stators corresponding to the first set of stator salient poles (211, 211 '), rotating a rotor (31) clockwise or counterclockwise by an angle to enable the fourth set of rotor salient poles (314, 317) and the first set of stator salient poles (211, 211') to be attracted relatively and fixed relatively in position, communicating a conducting channel (562) with an inlet and a third outlet or simultaneously communicating the second outlet and the third outlet, and arranging a gap part on a valve core (56) as a conducting channel (562) or a part of the conducting channel (562).

5. The electromagnetic control valve according to claims 1-4, wherein each set of salient stator poles is sleeved with an inner insulating layer (24), the windings (23) are wound on the inner insulating layers (24), the windings (23) are led out through connecting wires, and each set of stator windings (23) are wound together or are wound separately and then connected.

6. The electromagnetic control valve according to claims 1-4, characterized in that the valve body member (1) (1) further comprises a stainless steel sleeve (55), the distance between the inner wall surface of the stator salient poles of the stator member (2) and the outer wall of the stainless steel sleeve (55) being equal to or less than 0.2mm, and/or the distance between the outer wall portion of the rotor salient pole region of the rotor member (3) and the inner wall of the stainless steel sleeve (55) being equal to or less than 0.3mm.

7. The solenoid control valve according to claims 1-4, characterized in that it further comprises a balancing pad (54), a corresponding conducting portion is provided at the position of said balancing pad (54) opposite to the conducting channel (562) of said spool (56), said conducting channel (562) is a missing portion, and when said outlet is located at the corresponding position of said conducting channel (562), said outlet is communicated with said inner chamber (10) through said conducting channel (562) and the conducting portion of said balancing pad (54).

8. The solenoid control valve according to claims 1 to 4, characterised in that the flat face (501) of the spool (56) facing the valve body (50) and the flat face (501) of the surface of the valve body (50) are provided with a recess in the position of the outlet, which is in communication with the internal chamber (10), the spool (56) further comprising a small channel, which communicates the recess with the internal chamber (10), the outlet being in a semi-closed condition when it is not in communication with the inlet through the through channel (562).

9. The solenoid control valve according to claims 1 to 4, characterized in that said spool (56) presents an inwardly annular recess towards the bottom plane of said valve body (50) and provides a communicating gap with said internal chamber (10) beside said recess, said outlet communicating with said internal chamber (10) through said recess and said gap.

10. The solenoid control valve according to claim 1, characterized in that it is a switch-type solenoid valve, said outlet being one, said spool (56) being provided with a recess as the conducting channel (562) or a part of the conducting channel (562), said outlet being able to communicate or not with the internal chamber (10) through said recess.

11. The solenoid control valve according to claim 2, characterized in that said two outlets of said solenoid control valve are provided, said spool (56) being provided with an undercut as a conducting channel (562) or a part of a conducting channel (562), said outlets being connectable or not to the chamber (10) through said undercut, and said two outlets being switchable by controlling the rotation of said rotor member (3) between four main operating states, one open and one closed, two fully open, two fully closed, etc.

12. The solenoid control valve according to claim 3 or 4, characterized in that it comprises three outlets: an outlet B, an outlet C and an outlet D; when the rotor component (3) rotates, the valve core (56) is driven to rotate, so that at least one of the outlets is communicated with the inner cavity (10); the outlets are communicated with the inner cavity (10) through the conducting channel (562), and one or two outlets can be communicated with the inner cavity (10) through the conducting channel (562); when the valve core (56) rotates along with the rotor component (3), the conducting channels (562) of the valve core (56) can respectively realize four different communication modes, so that at least four different working modes are realized, including: a first operating mode: the outlet B is communicated with the conduction channel (562), and the outlet C, D is not communicated with the conduction channel (562); a second working mode: B. the outlet C is communicated with the conduction channel (562), and the outlet D is not communicated with the conduction channel (562); the third working mode is as follows: C. the outlet D is communicated with the conduction channel (562), and the outlet B is not communicated with the conduction channel (562); a fourth operating mode: the outlet D is communicated with the conducting channel (562), and the outlet B, C is not communicated with the conducting channel (562).