CN214425173U - Electric four-way valve - Google Patents
Electric four-way valve Download PDFInfo
- Publication number
- CN214425173U CN214425173U CN202120554388.5U CN202120554388U CN214425173U CN 214425173 U CN214425173 U CN 214425173U CN 202120554388 U CN202120554388 U CN 202120554388U CN 214425173 U CN214425173 U CN 214425173U
- Authority
- CN
- China
- Prior art keywords
- valve body
- cover
- output shaft
- valve
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
A valve core of the electric four-way valve comprises a middle clapboard, an upper baffle and a lower baffle, wherein the middle clapboard is positioned between the upper baffle and the lower baffle; the outer wall of the upper bearing cover is in interference fit with the inner wall of the valve body; the outer wall of the lower bearing cover is in interference fit with the inner wall of the valve body; an electric drive assembly is arranged above the upper bearing cover, and a power shaft of the electric drive assembly is connected with the upper output shaft; a power supporting plate is arranged in the valve body, and the electric drive assembly is fixed on the power supporting plate or directly fixed on the upper bearing cover; maintenance sealing parts are arranged at the matching positions of the upper output shaft and the upper bearing cover and the matching positions of the lower output shaft and the lower bearing cover; a terminal plate sealing element is arranged between the terminal plate and the upper cover body; the matching surface positions of the upper surface of the valve body and the upper cover body and the matching surface positions of the valve body and the lower cover body are provided with matching sealing pieces. The utility model discloses increase the cross valve operational reliability under pressure differential and difference in temperature, through adjustment case structure, make fluidic resistance reduce, increase behind the sealing member, can also take the area to overhaul, reduced emission and pollution.
Description
Technical Field
The utility model belongs to the technical field of the cross valve, concretely relates to electronic cross valve.
Background
In the field of electric four-way valves for air conditioners at present, because an exhaust end is high-temperature and high-pressure gas and an air suction end is low-temperature and low-pressure gas in the operation process of the air conditioner, media flowing into and out of the four-way valve have temperature difference and pressure difference, and a four-way valve body generates pressure deformation and thermal deformation, so that the four-way valve with a rotary structure has poor stability ratio and large leakage. In addition, the resistance of the fluid of the existing product is large, and the energy consumption is high. And if the maintenance is generated, the reverse Freon maintenance is required, which causes gas greenhouse effect and environmental pollution.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an electronic cross valve solves the poor problem of reliability of cross valve operation under pressure differential and the difference in temperature, solves simultaneously and overhauls the pollution problem.
In order to achieve the above object, the present invention provides the following technical solutions: an electric four-way valve comprises a valve body, wherein the upper end of the valve body is connected with an upper cover body, the lower end of the valve body is connected with a lower cover body, four channels are arranged on the side wall of the valve body, and a valve core is arranged inside the valve body;
the valve core comprises a middle partition plate, an upper baffle plate and a lower baffle plate, the middle partition plate is in one of a flat plate shape, an arc shape or an arched fluid curved surface shape, and the middle partition plate is positioned at the central position or the eccentric position between the upper baffle plate and the lower baffle plate;
an upper output shaft is connected to the upper side of the upper baffle plate, an upper bearing is arranged on the upper output shaft, an upper bearing cover is arranged on the outer side of the upper bearing, and the outer wall of the upper bearing cover is in interference fit with the inner wall of the valve body; the lower side of the lower baffle is connected with a lower output shaft, the lower output shaft is provided with a lower bearing, the outer side of the lower bearing is provided with a lower bearing cover, and the outer wall of the lower bearing cover is in interference fit with the inner wall of the valve body;
an electric drive assembly is arranged above the upper bearing cover, and a power shaft of the electric drive assembly is connected with the upper output shaft; a power supporting plate is arranged in the valve body, and an electric drive assembly is fixed on the power supporting plate or directly fixed on the upper bearing cover; the electric drive assembly is provided with a lead-out wire, the upper cover body is connected with a terminal board, the terminal board is connected with a binding post, and the lower part of the binding post is connected with the lead-out wire of the electric drive assembly;
the lower output shaft is led out through a middle hole of the lower bearing cover, a sensing plate is arranged at the lower part of the lower output shaft, and the sensing plate is provided with a magnetic block; the lower cover body is provided with a sensing blind hole, a sensor is arranged in the sensing blind hole, the sensor and the magnetic block are distributed on the same circumference, and the magnetic block rotates along with the valve core;
maintenance sealing parts are arranged at the matching positions of the upper output shaft and the upper bearing cover and the matching positions of the lower output shaft and the lower bearing cover; a terminal plate sealing element is arranged between the terminal plate and the upper cover body;
and matching sealing pieces are arranged on the matching surface positions of the upper surface of the valve body and the upper cover body and on the matching surface positions of the valve body and the lower cover body.
As the preferred scheme of the electric four-way valve, the outer diameters of the upper baffle and the lower baffle are both smaller than the inner diameter of the valve body, and the diameter of the contact arc surface of the middle partition plate and the valve body is smaller than the inner diameter of the valve body.
As a preferred scheme of the electric four-way valve, the electric drive assembly comprises a motor and a speed reducer, the speed reducer is any one of a planetary speed reducer, a worm gear speed reducer, a hard tooth surface speed reducer, a harmonic speed reducer and a cycloidal speed reducer, and the motor is any one of a direct current motor, an alternating current motor, a permanent magnet motor, a stepping motor, a servo motor and a magnetic coupling;
the electric drive assembly has a braking or damping mechanism with over-temperature, over-load, and over-current protection.
As a preferable scheme of the electric four-way valve, a terminal protection cover is arranged at the outer side of the terminal board, a hole is formed in the side surface of the terminal protection cover, and a lead of the terminal board is led out to a junction box arranged at the side part of the upper cover body through a terminal board side hole;
a sensor protective cover is arranged outside the sensor, a hole is formed in the side face of the sensor protective cover, and a lead of the sensor is led out to a junction box arranged at the side part of the upper cover body through the sensor protective cover side hole;
or the terminal board is arranged at the side part of the valve body, and the sensor is arranged at the middle part or the side wall in the valve body.
As a preferred scheme of the electric four-way valve, a wear-resistant sealing piece is arranged at a matching position, close to the valve core, on the outer wall of the valve core or the inner wall of the valve body, and the wear-resistant sealing piece is made of composite materials, alloys or polytetrafluoroethylene high polymer materials.
As the preferred scheme of the electric four-way valve, the wear-resistant sealing element adopts a copper sleeve, and the copper sleeve is provided with a hole embedded with a lubricating material; the wear-resistant sealing element is assembled in a mode of embedding, casting, welding or spraying.
As a preferred scheme of the electric four-way valve, the sensor is a magnetic sensor, a photoelectric sensor or a mechanical switch, the sensor is arranged in the middle of the valve body or on the side wall of the valve body, the number of the sensors is at least one, and the number of the magnetic blocks corresponding to the sensors is at least one.
As a preferred scheme of the electric four-way valve, the valve core is of an elliptical structure, the middle position is a large diameter, and the middle position in the 90-degree direction is a small diameter.
As a preferred scheme of the electric four-way valve, a maintenance sealing element is arranged at the matching position of the upper output shaft and the upper bearing cover, a maintenance sealing element is arranged at the matching position of the lower output shaft and the lower bearing cover, and the maintenance sealing element is an O-shaped ring;
a terminal plate sealing element is arranged between the terminal plate and the upper cover body and is a flat gasket or an O-shaped ring;
sealing elements are arranged on the matching surface position of the upper surface of the valve body and the upper cover body and the matching surface position of the valve body and the lower cover body, and the sealing elements are flat gaskets or O-shaped rings;
a connecting pipe, or a flange, or a connecting pipe and a flange are arranged in a channel on the side wall of the valve body;
the valve body extends to the plane position of the upper cover body, and the upper cover body is a flat flange.
As a preferred scheme of the electric four-way valve, a movable stop block is arranged at the lower part of the lower output shaft, and a fixed limit stop block is arranged on the lower cover body or the lower bearing cover; the movable stop block is limited and stopped by the fixed limit stop block in the process of rotating along with the valve core;
the middle position of the lower cover body or the side wall of the valve body is provided with a sight glass.
The utility model is provided with a valve body, the upper end of the valve body is connected with an upper cover body, the lower end of the valve body is connected with a lower cover body, the side wall of the valve body is provided with four channels, and the valve core is arranged inside the valve body; the valve core comprises a middle clapboard, an upper baffle and a lower baffle, the middle clapboard is in one of flat plate shape, arc shape or arch fluid curved shape, and the middle clapboard is positioned at the central position or eccentric position between the upper baffle and the lower baffle; an upper output shaft is connected to the upper side of the upper baffle plate, an upper bearing is arranged on the upper output shaft, an upper bearing cover is arranged on the outer side of the upper bearing, and the outer wall of the upper bearing cover is in interference fit with the inner wall of the valve body; the lower side of the lower baffle is connected with a lower output shaft, the lower output shaft is provided with a lower bearing, the outer side of the lower bearing is provided with a lower bearing cover, and the outer wall of the lower bearing cover is in interference fit with the inner wall of the valve body; an electric drive assembly is arranged above the upper bearing cover, and a power shaft of the electric drive assembly is connected with the upper output shaft; a power supporting plate is arranged in the valve body, and the electric drive assembly is fixed on the power supporting plate or directly fixed on the upper bearing cover; the electric drive assembly is provided with a lead-out wire, the upper cover body is connected with a terminal board, the terminal board is connected with a binding post, and the lower part of the binding post is connected with the lead-out wire of the electric drive assembly; the lower output shaft is led out through a middle hole of the lower bearing cover, the lower part of the lower output shaft is provided with a sensing plate, and the sensing plate is provided with a magnetic block; the lower cover body is provided with a sensing blind hole, a sensor is arranged in the sensing blind hole, the sensor and the magnetic block are distributed on the same circumference, and the magnetic block rotates along with the valve core. Maintenance sealing parts are arranged at the matching positions of the upper output shaft and the upper bearing cover and the matching positions of the lower output shaft and the lower bearing cover; a terminal plate sealing element is arranged between the terminal plate and the upper cover body; the matching surface positions of the upper surface of the valve body and the upper cover body and the matching surface positions of the valve body and the lower cover body are provided with matching sealing pieces. The utility model discloses increased the reliability that the cross valve moved under pressure differential and the difference in temperature, through adjustment case structure, made fluidic resistance reduce, increased behind the sealing member, can also take the area to overhaul, reduced emission and pollution, also not influenced system evacuation operation moreover.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic view of an electric four-way valve provided in embodiment 1 of the present invention;
fig. 2 is a schematic view of a valve core structure of an electric four-way valve provided in embodiment 1 of the present invention;
FIG. 3 is a schematic view of a symmetrical valve core structure of the electric four-way valve provided by the present invention;
FIG. 4 is a schematic view of an asymmetric valve core structure of the electric four-way valve of the present invention;
fig. 5 is a schematic structural view of another electric four-way valve provided in embodiment 2 of the present invention;
fig. 6 is a schematic structural view of an electric four-way valve provided with a movable stop provided in embodiment 3 of the present invention;
fig. 7 is a schematic view of an elliptical valve core structure of an electric four-way valve provided in embodiment 3 of the present invention.
In the figure, 1, a valve body; 2. an upper cover body; 3. a lower cover body; 4. a valve core; 5. a middle partition plate; 6. an upper baffle plate; 7. a lower baffle plate; 8. upward shaft output; 9. an upper bearing; 10. an upper bearing cap; 11. a lower shaft is output; 12. a lower bearing; 13. a lower bearing cap; 14. an electric drive assembly; 15. a terminal plate; 16. a sensor board; 17. a magnetic block; 18. a sensing blind hole; 19. repairing the sealing element; 20. a terminal plate seal; 21. a mating seal; 22. a movable stop block; 23. fixing a limit stop block; 24. a friction resistant seal material.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 and 2, the electric four-way valve comprises a valve body 1, wherein the upper end of the valve body 1 is connected with an upper cover body 2, the lower end of the valve body 1 is connected with a lower cover body 3, four channels are arranged on the side wall of the valve body 1, and a valve core 4 is arranged inside the valve body 1; a connecting pipe is arranged in a channel on the side wall of the valve body 1;
the valve core 4 comprises a middle partition plate 5, an upper baffle plate 6 and a lower baffle plate 7, the middle partition plate 5 is one of a flat plate shape, an arc shape or an arched fluid curved surface shape, and the middle partition plate 5 is positioned at the central position or the eccentric position between the upper baffle plate 6 and the lower baffle plate 7;
an upper output shaft 8 is connected to the upper side of the upper baffle 6, an upper bearing 9 is arranged on the upper output shaft 8, an upper bearing cover 10 is arranged on the outer side of the upper bearing 9, and the outer wall of the upper bearing cover 10 is in interference fit with the inner wall of the valve body 1; a lower output shaft 11 is connected to the lower side of the lower baffle 7, a lower bearing 12 is arranged on the lower output shaft 11, a lower bearing cover 13 is arranged on the outer side of the lower bearing 12, and the outer wall of the lower bearing cover 13 is in interference fit with the inner wall of the valve body 1;
an electric drive assembly 14 is arranged above the upper bearing cover 10, and a power shaft of the electric drive assembly 14 is connected with the upper output shaft 8; a power supporting plate is arranged inside the valve body 1, and an electric drive assembly 14 is fixed on the power supporting plate or directly fixed on the upper bearing cover 10; the electric drive assembly 14 is provided with a lead-out wire, the upper cover body 2 is connected with a terminal board 15, the terminal board 15 is connected with a binding post, and the lower part of the binding post is connected with the lead-out wire of the electric drive assembly 14;
the lower output shaft 11 is led out through a middle hole of the lower bearing cover 13, a sensing plate 16 is arranged at the lower part of the lower output shaft 11, and the sensing plate 16 is provided with a magnetic block 17; the lower cover body 3 is provided with a sensing blind hole 18, a sensor is arranged in the sensing blind hole 18, the sensor and the magnetic block 17 are distributed on the same circumference, and the magnetic block 17 rotates along with the valve core 4;
and matching sealing pieces 21 are arranged on the matching surface positions of the upper surface of the valve body 1 and the upper cover body 2 and the matching surface positions of the valve body 1 and the lower cover body 3.
In this embodiment, the outer diameters of the upper baffle 6 and the lower baffle 7 are both smaller than the inner diameter of the valve body 1, and the diameter of the contact arc surface of the middle partition plate 5 and the valve body 1 is smaller than the inner diameter of the valve body 1. The outer diameters of the upper baffle 6 and the lower baffle 7 are both smaller than the inner diameter of the valve body 1 by 0.01-0.10mm, and the diameter of the contact arc surface of the middle baffle 5 and the valve body 1 is preferably smaller than the inner diameter of the valve body 1 by 0.01-0.10 mm.
In this embodiment, the electric drive assembly 14 includes a motor and a speed reducer, the speed reducer is any one of a planetary speed reducer, a worm gear speed reducer, a hard tooth surface speed reducer, a harmonic speed reducer and a cycloidal speed reducer, and the motor is any one of a direct current motor, an alternating current motor, a permanent magnet motor, a stepping motor, a servo motor and a magnetic coupling; the electric drive assembly has a braking or damping mechanism with over-temperature, over-load, and over-current protection.
In this embodiment, a terminal protection cover is provided outside the terminal board 15, a hole is provided on a side surface of the terminal protection cover, and a lead of the terminal board 15 is led out to a terminal box provided on a side portion of the upper cover 2 through the side hole of the terminal board 15;
a sensor protective cover is arranged outside the sensor, a hole is formed in the side face of the sensor protective cover, and a lead of the sensor is led out to a junction box arranged at the side part of the upper cover body 2 through the hole of the sensor protective cover;
or the terminal board 15 is arranged at the side part of the valve body 1, and the sensor is arranged at the middle part or the side wall in the valve body 1.
In this embodiment, a wear-resistant sealing member is disposed at a matching position on the outer wall of the valve core 4 or the inner wall of the valve body 1, which is close to the valve core 4, and the wear-resistant sealing member is made of a composite material, an alloy or a polytetrafluoroethylene polymer material. The wear-resistant sealing element is a copper sleeve, and the copper sleeve is provided with a hole embedded with a lubricating material; the wear-resistant sealing element is assembled in a mode of embedding, casting, welding or spraying.
In this embodiment, the sensor is a magnetic sensor, a photoelectric sensor or a mechanical switch, the sensor is disposed in the middle of the valve body 1 or on the sidewall of the valve body 1, the number of the sensors is at least one, and the number of the magnetic blocks 17 corresponding to the sensor is at least one.
In this embodiment, a maintenance sealing element 19 is arranged at a matching position of the upper output shaft 8 and the upper bearing cover 10, a maintenance sealing element 19 is arranged at a matching position of the lower output shaft 11 and the lower bearing cover 13, and the maintenance sealing element 19 is an O-ring;
a terminal plate sealing element 20 is arranged between the terminal plate 15 and the upper cover body 2, and the terminal plate sealing element 20 is a flat gasket or an O-shaped ring;
the sealing device is characterized in that a sealing element is arranged on the matching surface position of the upper surface of the valve body 1 and the upper cover body 2 and on the matching surface position of the valve body 1 and the lower cover body 3, and the sealing element is a flat gasket or an O-shaped ring. Thus, the trouble of evacuating the fluorine guide tube and the environmental pollution can be avoided during maintenance.
In this embodiment, to prevent rotational inertia of the electric drive assembly 14, an electric braking or damping mechanism is added to the electric drive assembly 14 and an overload and overcurrent protector is provided.
With reference to fig. 3 and 4, when the electric four-way valve works, the initial state and the heating state are the channel DC communication and the SE communication, the magnetic block 17 on the sensor plate 16 corresponds to the heating sensor group, there is a control signal output, the cooling sensor group does not correspond to the magnetic block 17, there is no signal output, when the cooling state is required, that is, when the DE communication SC communication state is switched, the cooling sensor group does not have a signal in place, the external control circuit supplies power to the electric driving assembly 14, the electric driving assembly 14 rotates to drive the valve core 4 to rotate, the valve core 4 drives the sensor plate 16 to move, the magnet on the sensor plate 16 also rotates accordingly, when the magnetic block 17 corresponds to the cooling sensor group, a signal output is generated, at this time, the channel DE communication SC communication, the control system stops supplying power to the electric driving assembly 14 after receiving the signal of the cooling sensor group, and the valve core 4 stops rotating.
If the heating state needs to be switched back again, and the heating sensor does not output a signal, the driving circuit drives the electric driving assembly 14 to rotate reversely until the valve core 4 rotates to the heating state, the heating sensor corresponds to the magnetic block 17 to generate a heating and heating in-place signal, and the driving circuit stops the motor from rotating. At this time, the heating state is recovered, the channel DC is conducted, and the channel SE is conducted.
Example 2
Referring to fig. 5, in an embodiment of the electric four-way valve, a sensor is disposed at a middle position in the valve body 1, the sensor is a touch switch, a hole is formed in a side wall of the upper cover body 2, and is equipped with a terminal board 15, an electric drive lead and a sensor lead are led out from the terminal board 15, the lower output shaft 11 of the valve element 4 is led out through a middle hole of the lower bearing cover 13, a movable stopper 22 is disposed at a lower portion of the lower output shaft 11, a fixed limit stopper 23 is disposed on the lower cover body 3 or on the lower bearing cover 13, the movable stopper 22 and the fixed limit stopper 23 are in a corresponding relationship, the movable stopper 22 can be driven by the valve element 4 to rotate, the movable stopper 22 is stopped by the fixed limit stopper 23 in a rotation process along with the valve element 4, a viewing mirror is disposed at the middle position of the lower cover body 3 or on the side wall of the valve body 1, and a rotation position of the valve element 4 can be viewed.
Specifically, in the present embodiment, a friction-resistant sealing material 24 is disposed at a position where the inner wall of the valve body 1 is engaged with the valve core 4, and the friction-resistant sealing material 24 may be a composite copper sleeve or other friction-resistant material. And maintenance sealing O-shaped rings are arranged at the matching positions of the upper baffle plate 7 and the lower baffle plate 7 of the valve core 4 and the inner wall of the valve body 1. The valve core 4 is in a curved fluid shape to reduce the resistance of the fluid.
Example 3
Referring to fig. 6 and 7, in an embodiment of the electric four-way valve, the valve body 1 extends to the plane position of the upper cover body 2, and the upper cover body 2 is a flat flange. The valve body 1 upwards extends, and the upper cover body 2 becomes the flat structure, and four takeover on the valve body 1 lateral wall are for non-90 degrees equipartition, and the valve plate mediastinum is oval structure, and wherein oval big footpath is the mesophragma position of case 4, is equipped with movable stop 22 in the last axle 8 position of case 4, is equipped with fixed limit stop 23 on the upper surface of upper cover body 2, and when case 4 rotated the required position, movable stop iron touched with fixed limit stop 23 to carry out mechanical spacing.
In the embodiment, a part or all of the valve body 1 is provided with a wear-resistant sealing material 24, the lower output shaft 11 of the valve core 4 is led out through a middle hole of the lower bearing cover 13, the lower part of the lower output shaft 11 is provided with a sensing plate 16, the sensing plate 16 is provided with a magnetic block 17, the lower cover body 3 is provided with a sensing blind hole 18, a magnetic sensor is arranged in the sensing blind hole 18, the magnetic sensor and the magnetic block 17 are in corresponding relation and are distributed on a circle, and the magnetic block 17 can be driven by the valve core 4 to rotate.
The utility model is provided with a valve body 1, the upper end of the valve body 1 is connected with an upper cover body 2, the lower end of the valve body 1 is connected with a lower cover body 3, the side wall of the valve body 1 is provided with four channels, and the valve core 4 is arranged inside the valve body 1; the valve core 4 comprises a middle clapboard 5, an upper baffle 6 and a lower baffle 7, the middle clapboard 5 is one of flat plate, arc or arch fluid curved surface, and the middle clapboard 5 is positioned at the central position or eccentric position between the upper baffle 6 and the lower baffle 7; an upper output shaft 8 is connected to the upper side of the upper baffle 6, an upper bearing 9 is arranged on the upper output shaft 8, an upper bearing cover 10 is arranged on the outer side of the upper bearing 9, and the outer wall of the upper bearing cover 10 is in interference fit with the inner wall of the valve body 1; the lower side of the lower baffle 7 is connected with a lower output shaft 11, the lower output shaft 11 is provided with a lower bearing 12, the outer side of the lower bearing 12 is provided with a lower bearing cover 13, and the outer wall of the lower bearing cover 13 is in interference fit with the inner wall of the valve body 1; an electric drive assembly 14 is arranged above the upper bearing cover 10, and a power shaft of the electric drive assembly 14 is connected with the upper output shaft 8; a power supporting plate is arranged inside the valve body 1, and an electric drive assembly 14 is fixed on the power supporting plate or directly fixed on the upper bearing cover 10; the electric drive assembly 14 is provided with a lead-out wire, the upper cover body 2 is connected with a terminal board 15, the terminal board 15 is connected with a binding post, and the lower part of the binding post is connected with the lead-out wire of the electric drive assembly 14; the lower output shaft 11 is led out through a middle hole of the lower bearing cover 13, a sensing plate 16 is arranged at the lower part of the lower output shaft 11, and the sensing plate 16 is provided with a magnetic block 17; the lower cover body 3 is provided with a sensing blind hole 18, a sensor is arranged in the sensing blind hole 18, the sensor and the magnetic block 17 are distributed on the same circumference, and the magnetic block 17 rotates along with the valve core 4. The utility model discloses increased the reliability that the cross valve moved under pressure differential and the difference in temperature, through adjusting 4 structures of case, made fluidic resistance reduce, increased behind the sealing member, can also take the area to overhaul, reduced emission and pollution, also not influenced system evacuation operation moreover.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. An electric four-way valve comprises a valve body (1), wherein the upper end of the valve body (1) is connected with an upper cover body (2), and the lower end of the valve body (1) is connected with a lower cover body (3), and is characterized in that the side wall of the valve body (1) is provided with four channels, and a valve core (4) is arranged inside the valve body (1);
the valve core (4) comprises a middle partition plate (5), an upper baffle plate (6) and a lower baffle plate (7), the middle partition plate (5) is one of flat plate-shaped, arc-shaped or arch-shaped fluid curved surface shapes, and the middle partition plate (5) is positioned at the central position or the eccentric position between the upper baffle plate (6) and the lower baffle plate (7);
an upper output shaft (8) is connected to the upper side of the upper baffle (6), an upper bearing (9) is arranged on the upper output shaft (8), an upper bearing cover (10) is arranged on the outer side of the upper bearing (9), and the outer wall of the upper bearing cover (10) is matched with the inner wall of the valve body (1); a lower output shaft (11) is connected to the lower side of the lower baffle (7), a lower bearing (12) is arranged on the lower output shaft (11), a lower bearing cover (13) is arranged on the outer side of the lower bearing (12), and the outer wall of the lower bearing cover (13) is matched with the inner wall of the valve body (1);
an electric drive assembly (14) is arranged above the upper bearing cover (10), and a power shaft of the electric drive assembly (14) is connected with the upper output shaft (8); a power supporting plate is arranged in the valve body (1), and an electric drive assembly (14) is fixed on the power supporting plate or directly fixed on the upper bearing cover (10); the electric drive assembly (14) is provided with a lead-out wire, the upper cover body (2) is connected with a terminal board (15), the terminal board (15) is connected with a binding post, and the lower part of the binding post is connected with the lead-out wire of the electric drive assembly (14);
the lower output shaft (11) is led out through a middle hole of the lower bearing cover (13), a sensing plate (16) is arranged at the lower part of the lower output shaft (11), and the sensing plate (16) is provided with a magnetic block (17); the lower cover body (3) is provided with a sensing blind hole (18), a sensor is arranged in the sensing blind hole (18), the sensor and the magnetic block (17) are distributed on the same circumference, and the magnetic block (17) rotates along with the valve core (4);
maintenance sealing parts (19) are arranged at the matching positions of the upper output shaft (8) and the upper bearing cover (10) and the matching positions of the lower output shaft (11) and the lower bearing cover (13); a terminal plate sealing element (20) is arranged between the terminal plate (15) and the upper cover body (2);
the upper surface of the valve body (1) and the matching surface of the upper cover body (2) as well as the matching surface of the valve body (1) and the lower cover body (3) are provided with matching sealing pieces (21).
2. The electric four-way valve according to claim 1, wherein the outer diameters of the upper baffle (6) and the lower baffle (7) are smaller than the inner diameter of the valve body (1), and the diameter of the arc surface of the middle baffle (5) contacting the valve body (1) is smaller than the inner diameter of the valve body (1).
3. An electric four-way valve according to claim 1, wherein the electric drive assembly (14) comprises a motor and a speed reducer, the speed reducer is any one of a planetary speed reducer, a worm gear speed reducer, a hard tooth surface speed reducer, a harmonic speed reducer and a cycloidal speed reducer, and the motor is any one of a direct current motor, an alternating current motor, a permanent magnet motor, a stepping motor, a servo motor and a magnetic coupling;
the electric drive assembly (14) has a braking or damping mechanism with over-temperature, over-load, and over-current protection.
4. An electric four-way valve according to claim 1, wherein a terminal protection cover is provided outside the terminal board (15), a hole is provided on the side surface of the terminal protection cover, and a lead wire of the terminal board (15) is led out to a terminal box provided on the side of the upper cover body (2) through the terminal board (15) side hole;
a sensor protective cover is arranged outside the sensor, a hole is formed in the side face of the sensor protective cover, and a lead of the sensor is led out to a junction box arranged at the side part of the upper cover body (2) through the hole of the sensor protective cover;
or the terminal board (15) is arranged at the side part of the valve body (1), and the sensor is arranged at the middle part or the side wall in the valve body (1).
5. The electric four-way valve according to claim 1, wherein a wear-resistant sealing member is arranged at a matching position on the outer wall of the valve core (4) or the inner wall of the valve body (1) close to the valve core (4), and the wear-resistant sealing member is made of a composite material, an alloy or a polytetrafluoroethylene polymer material.
6. The electrically operated four-way valve according to claim 5, wherein the wear-resistant seal is a copper sleeve having a hole with a lubricating material embedded therein; the wear-resistant sealing element is assembled in a mode of embedding, casting, welding or spraying.
7. The electric four-way valve according to claim 1, wherein the sensor is a magnetic sensor, a photoelectric sensor or a mechanical switch, the sensor is arranged in the middle of the valve body (1) or on the side wall of the valve body (1), the number of the sensors is at least one, and the number of the magnetic blocks (17) corresponding to the sensors is at least one.
8. The electric four-way valve according to claim 1, wherein the valve core (4) is an elliptical structure, the middle position is a large diameter, and the middle position in the 90-degree direction is a small diameter.
9. The electric four-way valve according to claim 1, wherein the channel of the side wall of the valve body (1) is provided with a connecting pipe, or is provided with a flange;
the valve body (1) extends to the plane position of the upper cover body (2), and the upper cover body (2) is a flat flange.
10. The electric four-way valve according to claim 1, wherein a movable stop (22) is arranged at the lower part of the lower output shaft (11), and a fixed limit stop (23) is arranged on the lower cover body (3) or the lower bearing cover (13); the movable stop block (22) is limited and stopped by the fixed limit stop block (23) in the rotating process along with the valve core (4);
a sight glass is arranged at the middle position of the lower cover body (3) or on the side wall of the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120554388.5U CN214425173U (en) | 2021-03-17 | 2021-03-17 | Electric four-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120554388.5U CN214425173U (en) | 2021-03-17 | 2021-03-17 | Electric four-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214425173U true CN214425173U (en) | 2021-10-19 |
Family
ID=78074099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120554388.5U Active CN214425173U (en) | 2021-03-17 | 2021-03-17 | Electric four-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214425173U (en) |
-
2021
- 2021-03-17 CN CN202120554388.5U patent/CN214425173U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9876411B2 (en) | Cooling jacket comprising a sealing means | |
| CN103574094B (en) | A kind of flow control valve | |
| JP4544927B2 (en) | Electric control valve and refrigeration cycle equipment | |
| CN1268862C (en) | Valve drive device | |
| CN214425173U (en) | Electric four-way valve | |
| CN105190132A (en) | Axial valve with stationary element | |
| CN112728159B (en) | Plane sealing low flow resistance reversing valve | |
| CN101286685A (en) | Totally-enclosed driving device | |
| CN108374894A (en) | A kind of embedded type device for sealing magnetic fluid | |
| CN103703224B (en) | Turbo actuator | |
| CN211117631U (en) | Flue gas valve | |
| CN214579036U (en) | Pre-biased structure four-way valve | |
| CN201045751Y (en) | Totally-enclosed driving device | |
| CN109899314B (en) | High-pressure and ultrahigh-pressure shielding compressor | |
| CN202140231U (en) | Pipeline vacuum hydrogenerator | |
| JP4015769B2 (en) | Fluid control valve | |
| CN114593514A (en) | Hydraulic turbine type flow control device | |
| CN211183552U (en) | Stator assembly of external rotor motor | |
| CN201162842Y (en) | Totally-enclosed magnetic valve | |
| CN202250930U (en) | Energy-saving AC/DC (alternating current/direct current) two-purpose electrohydraulic thruster | |
| CN210919322U (en) | Micro-generator | |
| CN106195333A (en) | A kind of switching valve and water heater | |
| CN201322391Y (en) | Central air conditioner energy-saving system | |
| CN212251211U (en) | Electric tilting valve convenient to change blade | |
| CN217003342U (en) | Electric regulating valve with self-checking mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |