CN218818240U

CN218818240U - Open-close adjustable electromagnetic valve structure

Info

Publication number: CN218818240U
Application number: CN202223016033.4U
Authority: CN
Inventors: 南艳艳
Original assignee: Hangzhou Entropy Technology Co ltd
Current assignee: Hangzhou Entropy Technology Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-04-07
Anticipated expiration: 2032-11-11

Abstract

The utility model relates to a solenoid valve technical field especially relates to a solenoid valve structure with adjustable switching. The open-close adjustable electromagnetic valve structure comprises a valve body, a valve body and a valve body, wherein a movable valve core is arranged on the valve body; the valve seat is provided with a medium flow channel and a valve port, the medium flow channel is communicated with the valve port, and the valve body is arranged on the valve seat; the return spring is connected with the movable valve core and used for generating elasticity for the movable valve core so that the valve port sealing structure closes the valve port; the memory alloy spring is sleeved on the movable valve core and generates elastic force in the opposite direction with the return spring; and the electromagnetic coil is arranged on the valve body and used for generating electromagnetic induction to adjust the elastic force of the memory alloy spring. The utility model discloses a solenoid valve structure with adjustable switching through adopting the resultant force of memory alloy spring and ordinary spring to control movable valve core, through the motion of movable valve core, drives the motion of valve port seal structure, realizes closing, opening and the flow control of valve port.

Description

Open-close adjustable electromagnetic valve structure

Technical Field

The utility model relates to a solenoid valve technical field especially relates to a solenoid valve structure with adjustable switching.

Background

The valves appearing on the new energy vehicle at present have two realization schemes: the first scheme is that the valve core is opened or closed electromagnetically, the electromagnetic coil is powered on to produce magnetic field, the valve core is attracted by means of electromagnetic force, the electromagnetic coil is powered off, the electromagnetic force disappears, and the valve core is restored to the initial position under the action of the return spring to realize the opening and closing functions of the electromagnetic valve. The valve of the scheme can be used for various liquid and gaseous media to realize the opening and closing functions of the flow path. The electromagnetic valve can be easily opened and closed under the condition of low medium pressure difference; however, under the condition of high pressure difference and when the requirement of the flow area is large, the opening and closing of the valve port can be realized only by adopting a multistage mode. In addition, because the valve port is opened or closed in a pressure balance mode, the diameter of a pressure balance hole in the valve port is small, the valve port is easily interfered by impurities and lubricating oil liquid, the function of the electromagnetic valve is failed, and the structure is complex.

The second scheme is that the valve core is driven by the motor to rotate so as to realize the opening and closing of the water valve and the flow regulation, when the position of the valve core rotates to a corresponding channel, the channel is communicated, and a corresponding medium can circulate. The valves are classified according to the structure of the valve core, and mainly include a column valve, a ball valve and a butterfly valve, and the valve core is driven to rotate by a motor serving as a driving force. The valve for opening and closing and flow regulation is realized through the motor, the control part needs the motor and is provided with a gear mechanism, the structure is complex, and the cost is higher. For the valve with one inlet and multiple outlets, the number of the outlets is more than three, flow control can be realized by requirements, the mode of motor control is slightly insufficient, the function can be realized by more motors, the cost is higher, and the cost performance is lower.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solenoid valve structure with adjustable switching for solve among the prior art structure that valve class structure exists complicated, receive the defect that medium interference became invalid, cost are too high, realize solenoid valve simple structure, characteristics that the reliability is high.

The utility model provides a solenoid valve structure with adjustable switching, include:

the valve body is provided with a movable valve core, and one end of the movable valve core is connected with a valve port sealing structure;

the valve seat is provided with a medium flow channel and a valve port, the medium flow channel is communicated with the valve port, and the valve body is arranged on the valve seat;

the return spring is arranged in the valve body, is connected with the movable valve core and is used for generating elasticity on the movable valve core so that the valve port sealing structure closes the valve port;

the memory alloy spring is arranged in the valve body, is sleeved on the movable valve core and generates elastic force in the direction opposite to that of the return spring;

and the electromagnetic coil is arranged on the valve body and used for generating electromagnetic induction so as to adjust the elastic force of the memory alloy spring.

According to the utility model provides a pair of solenoid valve structure with adjustable switching, the valve body includes main body cover, main body cover's one end is provided with the opening, movable valve element's one end is located in main body cover and pass through return spring with main body cover's interior wall connection, movable valve element's the other end is worn to establish the opening extends to main body cover is outer to be connected valve port seal structure.

According to the utility model provides a pair of solenoid valve structure with adjustable switching, main body cover is being close to an open-ended pot head is equipped with the mounting panel, the mounting panel is corresponding the mounting groove has been seted up to the opening part, be provided with the restriction in the mounting groove the movable valve core breaks away from main body cover's stop part.

According to the utility model provides a pair of solenoid valve structure with adjustable switching, stop part includes the case retaining ring, the case retaining ring is installed in the mounting groove, case retaining ring middle part seted up with the through-hole of activity case adaptation, the one end of activity case is worn to establish the through-hole.

According to the open-close adjustable electromagnetic valve structure provided by the utility model, a first sealing ring mounting groove is arranged on the outer peripheral wall of the valve core retainer ring at one end close to the main body shell in a surrounding manner, and a first sealing ring is sleeved in the first sealing ring mounting groove; and a second sealing ring mounting groove is formed in the inner peripheral wall of the valve core retainer ring in an encircling manner, and a second sealing ring is embedded in the second sealing ring mounting groove.

According to the utility model provides a pair of solenoid valve structure with adjustable switching, movable valve core include first cylinder and second cylinder, first cylinder is located main body cover and the diameter of first cylinder is greater than the diameter of through-hole, the one end and the return spring of first cylinder are connected, and the other end of first cylinder is connected with the one end of second cylinder, and the other end activity of second cylinder is worn to establish the through-hole is connected with valve port seal structure.

According to the utility model provides a pair of solenoid valve structure with adjustable switching, memory alloy spring mounting groove has been seted up on the perisporium that first cylinder is close to second cylinder one end, memory alloy spring activity cup joints in memory alloy spring mounting groove, memory alloy spring's one end with the case retaining ring is connected, the other end and the interior wall connection of memory alloy spring mounting groove.

According to the utility model provides a pair of solenoid valve structure with adjustable switching, the disk seat is inside to be provided with the medium runner, seted up the valve body installing port on the disk seat lateral wall of medium runner both sides respectively with the valve port, the valve body installing port is used for the installation the valve body, valve port seal structure with the valve port corresponds the adaptation.

According to the utility model provides a pair of solenoid valve structure with adjustable switching, the disk seat is inside to be provided with the medium runner, seted up the valve body installing port on the disk seat lateral wall of medium runner both sides respectively with the valve port, the disk seat lateral wall at valve body installing port place is at the orientation one side of valve port still is provided with the pressure balance chamber, the valve port orientation pressure balance chamber one side is provided with the bulge loop, the outside cover of bulge loop is equipped with opens the spring, open the spring one end with the disk seat inner wall connection at valve port place, the other end be connected with the sealed piston of pressure balance chamber adaptation, sealed piston is located the bulge loop upside and with the inner wall laminating in pressure balance chamber, the exhaust hole has been seted up at the middle part of sealed piston, valve port seal structure with the exhaust hole corresponds the adaptation.

According to the utility model provides a pair of solenoid valve structure with adjustable switching, the memory alloy spring is made by control by temperature change memory alloy or magnetic control memory alloy.

The utility model provides an open-close adjustable electromagnetic valve structure, which controls the movable valve core by adopting the resultant force of a memory alloy spring and a common spring, and drives the valve port sealing structure to move by the movement of the movable valve core, thereby realizing the closing, opening and flow regulation of the valve port; the valve port sealing structure and the valve seat can be adaptively matched and designed according to different media and pressure conditions; the valve body of the electromagnetic valve structure can be used as a standard component and assembled with a corresponding valve seat according to requirements; the whole electromagnetic valve structure is a full mechanical structure, the memory alloy spring is controlled by the spring force through the temperature or the magnetic field, and the reliability is high. The utility model discloses the simple structure of solenoid valve structure, the assembly is simple, does not receive the interference of fluid medium, has under the condition of a plurality of passageways, need not a plurality of electric machine control, has reduced manufacturing cost.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of an open state of a valve port according to an embodiment of the present invention;

FIG. 2 is a schematic view of a valve port according to an embodiment of the present invention in a closed state;

fig. 3 is a schematic structural diagram of a valve body according to a first embodiment of the present invention;

fig. 4 is a diagram illustrating another usage status of the embodiment of the present invention;

fig. 5 is a schematic diagram illustrating an open state of two valve ports according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a closed state of two valve ports according to an embodiment of the present invention;

reference numerals are as follows:

100. a valve body; 101. A main body housing; 102. A movable valve core;

103. a valve port sealing structure; 104. Mounting a plate;

200. a valve seat; 201. a medium flow passage; 202. a valve port; 203. a pressure balancing chamber;

204. a convex ring; 205. opening the spring; 206. a sealing piston; 207. an exhaust hole;

300. a return spring; 400. a memory alloy spring; 500. an electromagnetic coil;

600. a blocking portion; 601. a valve core retainer ring; 602. a first seal ring;

603. and a second seal ring.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The first embodiment is as follows:

the following describes an electromagnetic valve structure with adjustable open/close according to the present invention with reference to fig. 1 to 4, including: valve body 100, valve seat 200, return spring 300, memory alloy spring 400 and solenoid 500.

The valve body 100 is provided with a movable valve core 102, and one end of the movable valve core 102 is connected with a valve port sealing structure 103; the return spring 300 is disposed in the valve body 100, connected to the movable valve core 102, and configured to generate an elastic force on the movable valve core 102, so that the valve port sealing structure 103 closes the valve port 202; the memory alloy spring 400 is arranged in the valve body 100, is sleeved on the movable valve core 102 and generates elastic force in the direction opposite to that of the return spring 300; the electromagnetic coil 500 is installed on the valve body 100 for generating electromagnetic induction to adjust the magnitude of the elastic force of the memory alloy spring 400.

Specifically, the return spring 300 is a common carbon steel spring, the memory alloy spring 400 is made of a temperature control memory alloy or a magnetic control memory alloy, the memory alloy is made into a spring, the elasticity of the spring is changed by controlling the temperature or the magnetic field, and the movement of the movable valve core 102 is realized by the balance of the spring force; the solenoid 500 can be matched according to the pressure of the actual fluid and the control response speed, and the solenoid 500 with a larger pressure difference can be selected for the fluid medium or the valve with high control response speed requirement.

When the temperature is low or the magnetic field is weak, the elastic force of the return spring 300 is greater than that of the memory alloy spring 400, the movable valve core 102 is subjected to downward spring force to reach the lower limit position, the valve port sealing structure 103 is driven by the movable valve core 102 to operate to the lower limit position, and the valve port 202 where the medium flows is sealed. When the electromagnetic coil 500 is energized, the temperature of the main body housing 101 and the movable valve element 102 will rise accordingly, the memory alloy spring 400 is heated, or the magnetic field intensity in the electromagnetic coil 500 increases, at this time, the spring force of the memory alloy spring 400 is increased under the influence of the temperature or the magnetic field and is greater than the spring force of the return spring 300, the movable valve element 102 is subjected to an upward spring force to reach the upper limit position, the valve port sealing structure 103 is driven by the movable valve element 102 to move to the upper limit position, and the valve port 202 through which the medium flows is opened.

As shown in fig. 3, in the present embodiment, the valve body 100 includes a main body housing 101, one end of the main body housing 101 is provided with an opening, one end of the movable valve core 102 is located in the main body housing 101 and is connected to the inner wall of the main body housing 101 through a return spring 300, and the other end of the movable valve core 102 extends out of the main body housing 101 through the opening and is connected to the valve port sealing structure 103.

The main body casing 101 is sleeved with a mounting plate 104 at one end close to the opening, the mounting plate 104 is provided with a mounting groove at the corresponding opening, and a blocking part 600 for limiting the movable valve core 102 to be separated from the main body casing 101 is arranged in the mounting groove.

The blocking portion 600 comprises a valve core retainer ring 601, the valve core retainer ring 601 is installed in the installation groove, a through hole matched with the movable valve core 102 is formed in the middle of the valve core retainer ring 601, and the through hole is penetrated by one end of the movable valve core 102.

A first sealing ring installation groove is formed in the peripheral wall of the valve core retainer ring 601 at one end close to the main body shell 101 in a surrounding mode, and a first sealing ring 602 is sleeved in the first sealing ring installation groove; a second sealing ring installation groove is formed in the inner peripheral wall of the valve core retaining ring 601 in an encircling manner, and a second sealing ring 603 is embedded in the second sealing ring installation groove. The first seal 602 is an O-ring and the second seal 603 is a star-ring. The cooperation of the first sealing ring 602 and the second sealing ring 603 can better achieve the sealing effect.

The movable valve core 102 comprises a first cylinder and a second cylinder, the first cylinder is located in the main body shell 101, the diameter of the first cylinder is larger than that of the through hole, one end of the first cylinder is connected with the return spring 300, the other end of the first cylinder is connected with one end of the second cylinder, and the other end of the second cylinder movably penetrates through the through hole and is connected with the valve port sealing structure 103. The stepped shaft-like movable valve core 102 is more convenient to assemble and position.

A memory alloy spring mounting groove is formed in the peripheral wall of one end, close to the second column, of the first column, the memory alloy spring 400 is movably sleeved in the memory alloy spring mounting groove, one end of the memory alloy spring 400 is connected with the valve core retainer ring 601, and the other end of the memory alloy spring 400 is connected with the inner wall of the memory alloy spring mounting groove.

The valve seat 200 is provided with a medium flow channel 201 and a valve port 202, the medium flow channel 201 is communicated with the valve port 202, and the valve body 100 is installed on the valve seat 200;

specifically, a medium flow channel 201 is arranged inside the valve seat 200, a valve body mounting opening and a valve port 202 are respectively formed in the side wall of the valve seat 200 on the two sides of the medium flow channel 201, the valve body mounting opening is used for mounting the valve body 100, and the valve port sealing structure 103 is correspondingly matched with the valve port 202. In this embodiment, the valve port 202 structure is a conventional V-shaped valve port structure, and the valve port sealing structure 103 preferably has a V-shaped cross section, so as to achieve better sealing effect.

Because the valve port sealing structure 103 is a V-shaped structure, and the memory alloy spring 400 can realize an approximately linear control relationship according to the temperature or the magnetic field intensity, the movable valve core 102 can operate at any position between an upper limit and a lower limit or between the upper limit and the lower limit according to the temperature or the magnetic field intensity, and the valve port sealing structure 103 also operates at any position as the movable valve core 102;

therefore, the open/close adjustable electromagnetic valve structure of the present embodiment is suitable for a valve body with low pressure difference and flow rate adjustment requirement, and realizes the flow rate adjustment and the opening/closing function of the valve port 202 by adjusting the position of the movable valve core 102.

The valve body 100 can be used as an integral body and is mounted on the valve body mounting opening of the valve seat 200 through a thread structure on the outer peripheral wall of the mounting plate 104, so that the standardized design of the main body structure is realized. In the event that multiple interface passages need to be controlled, the body structure may be assembled as a modular unit to the desired valve seat as shown in fig. 4.

Example two:

as shown in fig. 5 to 6, the structure of the on/off variable solenoid valve in the present embodiment differs from the structure of the on/off variable solenoid valve in the first embodiment in that the valve seat 200 and the valve port sealing structure 103 are different, and the remaining structures are substantially the same.

Specifically, in this embodiment, a medium flow channel 201 is disposed inside a valve seat 200, a valve body installation opening and a valve port 202 are respectively disposed on side walls of the valve seat 200 on two sides of the medium flow channel 201, a pressure balance cavity 203 is further disposed on one side of the side wall of the valve seat 200 where the valve body installation opening is located, a convex ring 204 is disposed on one side of the valve port 202 facing the pressure balance cavity 203, an opening spring 205 is sleeved outside the convex ring 204, one end of the opening spring 205 is connected with an inner wall of the valve seat 200 where the valve port 202 is located, the other end of the opening spring is connected with a sealing piston 206 adapted to the pressure balance cavity 203, the sealing piston 206 is located on an upper side of the convex ring 204 and is attached to an inner wall of the pressure balance cavity 203, an exhaust hole 207 is disposed in a middle portion of the sealing piston 206, and the valve port sealing structure 103 is correspondingly adapted to the exhaust hole 207. The vent hole 207 is preferably a large-diameter vent hole, and the valve port sealing structure 103 is preferably a conical structure, the tip of which can be inserted into the vent hole 207.

As shown in fig. 5, for the sake of understanding, the medium flow path 201 on the left side of the convex ring 204 is defined as an inlet side, and the medium flow path 201 on the right side of the convex ring 204 is defined as an outlet side. When the solenoid 500 is energized, when the movable valve core 102 moves to the upper limit, the exhaust hole 207 is opened, the pressure in the pressure balance chamber 203 rapidly drops to the outlet side pressure due to the large pressure difference between the outlet side and the inlet side, and at this time, the sealing piston 206 is pushed to the upper end by the pressure difference due to the inlet side pressure being larger than the outlet side pressure, and the valve port 202 is opened. After the electromagnetic coil 500 is powered off, the movable valve core 102 moves to the lower limit position against the sealing piston 206 under the elastic force of the return spring 300, and the valve port 202 is closed. Because of the large pressure difference, the movable valve core 102 cannot be directly connected to the sealing piston 206, otherwise, under the large pressure difference, the elastic force of the memory alloy spring 400 is not enough to balance the force generated by the pressure difference, and the opening and closing function of the valve body fails.

The open-close adjustable electromagnetic valve structure of the embodiment is suitable for a valve body with high pressure difference and no flow regulation requirement, adopts a pressure balance mode, realizes the opening and closing of the valve port 202, has a large drift diameter size of the exhaust hole 207, and cannot cause the blockage of the valve body due to the problems of impurities or lubricating oil liquid, and finally causes the failure of the open-close function of the valve body.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An open-close adjustable electromagnetic valve structure, comprising:

the valve seat is provided with a medium flow passage and a valve port, the medium flow passage is communicated with the valve port, and the valve body is arranged on the valve seat;

the return spring is arranged in the valve body, is connected with the movable valve core and is used for generating elasticity for the movable valve core so that the valve port sealing structure closes the valve port;

2. The structure of the on-off adjustable electromagnetic valve according to claim 1, wherein the valve body includes a main body housing, one end of the main body housing is provided with an opening, one end of the movable valve element is located in the main body housing and connected to an inner wall of the main body housing through the return spring, and the other end of the movable valve element penetrates through the opening and extends to the outside of the main body housing and is connected to the valve port sealing structure.

3. The structure of an open/close adjustable electromagnetic valve according to claim 2, wherein a mounting plate is sleeved on an end of the main body housing near the opening, a mounting groove is formed in the mounting plate corresponding to the opening, and a blocking portion for limiting the movable valve element from separating from the main body housing is disposed in the mounting groove.

4. The structure of an open-close adjustable electromagnetic valve according to claim 3, wherein the blocking portion includes a valve core retaining ring, the valve core retaining ring is installed in the installation groove, a through hole adapted to the movable valve core is formed in the middle of the valve core retaining ring, and one end of the movable valve core penetrates through the through hole.

5. The on-off adjustable electromagnetic valve structure according to claim 4, wherein a first seal ring mounting groove is circumferentially formed on the outer peripheral wall of the valve core retainer ring at an end close to the main body housing, and a first seal ring is sleeved in the first seal ring mounting groove; and a second sealing ring mounting groove is formed in the inner peripheral wall of the valve core retainer ring in an encircling manner, and a second sealing ring is embedded in the second sealing ring mounting groove.

6. The structure of an open-close adjustable electromagnetic valve according to claim 4, wherein the movable valve core comprises a first cylinder and a second cylinder, the first cylinder is located in the main body housing, the diameter of the first cylinder is larger than that of the through hole, one end of the first cylinder is connected with the return spring, the other end of the first cylinder is connected with one end of the second cylinder, and the other end of the second cylinder movably penetrates through the through hole and is connected with the valve port sealing structure.

7. The structure of the open-close adjustable electromagnetic valve according to claim 6, wherein a memory alloy spring mounting groove is formed in a peripheral wall of the first cylinder near one end of the second cylinder, the memory alloy spring is movably sleeved in the memory alloy spring mounting groove, one end of the memory alloy spring is connected with the valve core retainer ring, and the other end of the memory alloy spring is connected with an inner wall of the memory alloy spring mounting groove.

8. The structure of an on-off adjustable electromagnetic valve according to claim 1, wherein the medium flow channel is disposed inside the valve seat, a valve body mounting opening and the valve port are respectively disposed on the side walls of the valve seat on both sides of the medium flow channel, the valve body mounting opening is used for mounting the valve body, and the valve port sealing structure is correspondingly adapted to the valve port.

9. The structure of an open-close adjustable electromagnetic valve according to claim 1, wherein the medium flow channel is disposed inside the valve seat, the valve seat side walls at two sides of the medium flow channel are respectively provided with a valve body installation opening and the valve port, the valve seat side wall where the valve body installation opening is located is further provided with a pressure balance chamber at one side facing the valve port, the valve port is provided with a convex ring at one side facing the pressure balance chamber, an opening spring is sleeved outside the convex ring, one end of the opening spring is connected with the inner wall of the valve seat where the valve port is located, the other end of the opening spring is connected with a sealing piston adapted to the pressure balance chamber, the sealing piston is located at the upper side of the convex ring and is attached to the inner wall of the pressure balance chamber, an exhaust hole is disposed in the middle of the sealing piston, and the valve port sealing structure is correspondingly adapted to the exhaust hole.

10. The structure of an open-close adjustable electromagnetic valve according to claim 1, wherein the memory alloy spring is made of a temperature-controlled memory alloy or a magnetic-controlled memory alloy.