CN215258100U

CN215258100U - Double-spring electromagnetic valve with exhaust function

Info

Publication number: CN215258100U
Application number: CN202121656079.5U
Authority: CN
Inventors: 黄磊; 田金山; 杨军
Original assignee: Suzhou Junsheng Intelligent Technology Co ltd
Current assignee: Suzhou Junsheng Intelligent Technology Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-12-21
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses a double-spring electromagnetic valve with exhaust function, which comprises a valve body and a three-way valve seat, a liquid inlet pipe and a liquid outlet pipe which are connected with each other and are integrally formed by plastic materials, wherein a liquid storage cavity is formed between the valve body and the three-way valve seat; a filter module corresponding to the valve body is arranged on the liquid inlet pipe, and a vent hole communicated to the liquid storage cavity is arranged between the filter module and the valve body; the valve body comprises a fixed iron core and a movable iron core; a large spring is sleeved on the outer side of the movable iron core, and a small spring is arranged in an axial inner cavity; the end part of the valve body is also connected with a coil plug connector which is electrically communicated with the fixed iron core. The three-way valve seat, the liquid inlet pipe and the liquid outlet pipe are integrally formed by plastic materials, so that the three-way valve has the advantages of light self weight and low manufacturing cost of the electromagnetic valve; the vent hole can realize internal exhaust, so that the response time of the electromagnetic valve is faster; the double-spring structure utilizes the water pressure balance principle, and the sealing effect of the electromagnetic valve is better.

Description

Double-spring electromagnetic valve with exhaust function

Technical Field

The utility model belongs to the technical field of the automobile parts technique and specifically relates to solenoid valve technical field, in particular to double spring solenoid valve with exhausting function to be used for controlling the break-make of liquids such as antifreeze, coolant liquid.

Background

Solenoid valves are the basic elements of automation used in control systems to regulate the direction, flow, velocity and other parameters of a medium to control the make and break of a fluid. In the field of automobiles, an electromagnetic valve is mainly used for controlling the on-off of liquids such as antifreeze and cooling liquid and mainly comprises a valve body with a liquid inlet and a liquid outlet and an electromagnetic unit with a connecting wire. The electromagnetic valves used as automobile parts in the prior art mainly comprise the following parts:

1. the valve body part is usually a metal piece made of copper or aluminum, and the electromagnetic unit is provided with a wire harness communicated with an external connecting part, so that the electromagnetic valve has heavier self weight and higher manufacturing cost;

2. the movable iron core is of a solid structure, and the problem of poor exhaust exists during movement, so that the electromagnetic valve is slow to open and insensitive to response;

3. there is also a general problem of axial unbalance of the movable iron core, resulting in poor sealing effect.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a double-spring solenoid valve with an exhaust function, which comprises a valve body and a three-way valve seat made of plastic materials which are connected with each other, wherein a liquid storage cavity is formed between the valve body and the three-way valve seat, and a sealing ring is arranged at the joint;

the three-way valve seat is connected with a plastic liquid inlet pipe and a plastic liquid outlet pipe, a filtering module corresponding to the valve body is arranged on the liquid inlet pipe, and a vent hole communicated to the liquid storage cavity is formed between the filtering module and the valve body;

the valve body comprises a magnetic conduction shell, a fixed iron core is fixedly mounted at one end of the magnetic conduction shell, a stainless steel sleeve is arranged inside the magnetic conduction shell, and a movable iron core which is coaxial with the fixed iron core and has an axial inner cavity is arranged inside the stainless steel sleeve; a limiting block is arranged at one end, located in the liquid storage cavity, of the movable iron core, a large spring located between the inner wall of the liquid storage cavity and the limiting block is sleeved on the outer side of the movable iron core, and a small spring is axially arranged inside an axial inner cavity of the movable iron core; one end of the small spring, which corresponds to the liquid storage cavity, is provided with a sealing rubber gasket positioned at the axial end part of the movable iron core, the outer side of the sealing rubber gasket is axially and correspondingly provided with a metal sealing element, and the end part of the metal sealing element is in plane contact sealing with the sealing rubber gasket;

the valve body further comprises an isolation sealing gasket, the outer ring of the isolation sealing gasket is fixed between the magnetic conduction shell and the three-way valve seat, and the inner ring of the isolation sealing gasket is fixed on the outer ring of the metal sealing element; an isolation pipe corresponding to the isolation sealing gasket is arranged between the liquid inlet pipe and the liquid outlet pipe, the liquid outlet pipe is communicated with the isolation pipe, and the liquid inlet pipe and the liquid outlet pipe are connected and disconnected through the separation and reunion of the end part of the isolation pipe and the isolation sealing gasket;

the end of the valve body is further connected with a coil connector, and a wire of the coil connector is electrically communicated with the fixed iron core.

Wherein, the filter module is including setting up the inside filter screen of inlet liquid pipe to and be used for the shutoff the filter screen lid of filter screen installing port so that the washing and the change of filter screen.

And one end of the fixed iron core, which is positioned outside the magnetic conduction shell, is locked on the magnetic conduction shell through a locking nut and a metal gasket.

Wherein, the isolation gasket is corrugated to achieve smooth water flow.

The magnetic conduction shell is connected with the tee valve seat through the external threads and the internal threads, and sealing is realized through the sealing ring; the liquid storage cavity is formed between the inner wall of the magnetic conduction shell and the isolation sealing gasket.

Wherein, tee bend disk seat, feed liquor pipe and drain pipe are plastics material integrated into one piece structure.

Through the technical scheme, the utility model discloses following beneficial effect has:

1. the three-way valve seat, the liquid inlet pipe and the liquid outlet pipe are made of integrally formed plastic materials, and compared with metal materials generally adopted in the prior art, the electromagnetic valve has the advantages of light self weight and low manufacturing cost;

2. the liquid inlet end is provided with a high-precision filter screen, so that the failure of the electromagnetic valve caused by the fact that foreign matters enter the movable iron core can be effectively prevented;

3. the liquid storage cavity is communicated with the filter screen through the vent hole, when the filter screen is powered on, a part of liquid can flow back to the filter screen from the vent hole in the moving process of the movable iron core so as to realize internal exhaust, so that the movable iron core is ensured to move more smoothly, and the response time of the electromagnetic valve is faster;

4. the double-spring structure of the movable iron core outer ring large spring and the inner cavity small spring is adopted, and the electromagnetic valve is better in sealing effect by utilizing the water pressure balance principle.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is a schematic view of a three-dimensional structure of a solenoid valve disclosed in an embodiment of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1 in a power-off state;

fig. 3 is a schematic sectional view taken along line a-a of fig. 1 in an energized state.

The figures in the drawings represent: 10. a valve body; 11. a magnetically conductive housing; 12. locking the nut; 13. a metal gasket; 141. fixing an iron core; 142. a movable iron core; 15. a stainless steel sleeve; 161. sealing the rubber pad; 162. a metal seal; 171. a small spring; 172. a large spring; 18. a limiting block; 19. an isolation gasket; 20. a three-way valve seat; 21. an isolation pipe; 30. a liquid inlet pipe; 40. a liquid outlet pipe; 50. a filtration module; 51. a filter screen; 52. a filter screen cover; 60. a coil plug connector; 70. a vent hole; 80. and (5) sealing rings.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-3, the dual-spring solenoid valve with exhaust function provided by the present invention comprises a valve body 10 and a three-way valve seat 20 connected with each other, wherein a liquid storage cavity is formed between the valve body 10 and the three-way valve seat 20, and a sealing ring 80 is arranged at the joint; the three-way valve seat 20 is connected with a liquid inlet pipe 30 and a liquid outlet pipe 40, and the three-way valve seat 20, the liquid inlet pipe 30 and the liquid outlet pipe 40 are of an integrally formed structure made of plastic materials; the liquid inlet pipe 30 is provided with a filter module 50 corresponding to the valve body 10, and a vent hole 70 communicated to the liquid storage cavity is arranged between the filter module 50 and the valve body 10; the filter module 50 includes a filter screen 51 disposed inside the liquid inlet pipe 30, and a filter screen cover 52 for sealing an installation opening of the filter screen 51 to facilitate cleaning and replacement of the filter screen 51.

The valve body 10 comprises a magnetic conduction shell 11, one end of the magnetic conduction shell 11 is provided with an external thread corresponding to the three-way valve seat 20, the three-way valve seat 20 is provided with an internal thread corresponding to the external thread, the magnetic conduction shell 11 is connected with the internal thread through the external thread and sealed through a sealing ring 80, and a liquid storage cavity is formed between the inner wall of the magnetic conduction shell 11 and the isolation sealing gasket; one end of the magnetic conduction shell 11 is fixedly provided with a fixed iron core 141 locked on the magnetic conduction shell 11 through a locking nut 12 and a metal gasket 13, a stainless steel sleeve 15 is arranged inside the magnetic conduction shell 11, and a movable iron core 142 which is coaxial with the fixed iron core 141 and has an axial inner cavity is arranged inside the stainless steel sleeve 15; a limiting block 18 is arranged at one end of the movable iron core 142, which is positioned in the liquid storage cavity, a large spring 172 positioned between the inner wall of the liquid storage cavity and the limiting block 18 is sleeved on the outer side of the movable iron core 142, and a small spring 171 is axially arranged in the axial inner cavity of the movable iron core 142; one end of the small spring 171 corresponding to the liquid storage cavity is connected with a sealing rubber pad 161 positioned at the axial end part of the movable iron core 142, the outer side of the sealing rubber pad 161 is axially and correspondingly provided with a metal sealing element 162, and the end part of the metal sealing element 162 is in plane contact sealing with the sealing rubber pad 161; the valve body 10 further comprises a corrugated isolation gasket 19 to realize stable water flow, the outer ring of the isolation gasket 19 is fixed between the magnetic conduction shell 11 and the three-way valve seat 20, and the inner ring of the isolation gasket 19 is fixed to the outer ring of the metal sealing element 162; an isolation pipe 21 corresponding to the isolation sealing gasket 19 is arranged between the liquid inlet pipe 30 and the liquid outlet pipe 40, the liquid outlet pipe 40 is communicated with the isolation pipe 21, and the liquid inlet pipe 30 and the liquid outlet pipe 40 are connected and disconnected by the separation and reunion of the end part of the isolation pipe 21 and the isolation sealing gasket 19; the end of the valve body 10 is also connected with a coil plug 60, and the wire of the coil plug 60 is electrically connected with the fixed iron core 141.

The utility model discloses a theory of operation:

referring to fig. 1, after the solenoid valve is fixed, the liquid inlet pipe 30 and the liquid outlet pipe 40 at both ends are respectively connected with an external pipeline and are connected with an external power supply through the coil plug 60, thereby completing the installation of the solenoid valve;

as shown in fig. 2, in the power-off state of the electromagnetic valve, the fixed iron core 141 is separated from the movable iron core 142, and under the self-gravity and the acting force of the large spring 172, the movable iron core 142 drives the sealing rubber pad 161 to be tightly attached to the metal sealing element 162, and under the acting force of the small spring 171, the sealing rubber pad 161 is tightly attached to the metal sealing element 162, so that the metal sealing element 162 drives the isolation gasket 19 to be tightly attached to the end surface of the isolation tube 21 to realize tight sealing; at this time, if the liquid such as the antifreeze or the cooling liquid is introduced from the liquid inlet pipe 30, the liquid enters the liquid storage cavity from the vent hole 70 after large-particle impurities are filtered by the 200-mesh 400-mesh filter screen 51, and further pressure is applied to the metal sealing element 162, so that the end faces of the isolation sealing gasket 19 and the isolation pipe 21 are attached more tightly, and the sealing effect is better when the pressure for introducing the liquid is higher;

as shown in fig. 3, when the electromagnetic valve is powered on to operate, the fixed core 141 is powered on to generate magnetic force and adsorb the movable core 142, the movable core 142 drives the sealing rubber pad 161 to approach the fixed core 141 together, and the movable core 142 moves, and simultaneously, the sealing rubber pad 161 is separated from the metal sealing element 162, and the metal sealing element 162 synchronously moves with the movable core 142 under the hydraulic action of the liquid inlet pipe 30 and compresses the liquid storage cavity space to enable liquid in the liquid storage cavity to be discharged through the vent pipe and return to the liquid inlet pipe 30 through the filter screen 51; meanwhile, due to the movement of the metal sealing element 162, the isolation sealing gasket 19 is separated from the isolation pipe 21 and a liquid path channel communicating the isolation pipe 21 with the liquid inlet pipe 30 is formed, and at the moment, the pressurized liquid inlet rapidly enters the isolation pipe 21 from the gap between the isolation sealing gasket 19 and the isolation pipe 21 and is further discharged through the liquid outlet pipe 40, so that the on-off of the liquid is realized through the on-off control of the electromagnetic valve.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-spring electromagnetic valve with an exhaust function is characterized by comprising a valve body (10) and a three-way valve seat (20) which are connected with each other, wherein a liquid storage cavity is formed between the valve body (10) and the three-way valve seat (20), and a sealing ring (80) is arranged at the connection position;

the three-way valve seat (20) is connected with a plastic liquid inlet pipe (30) and a plastic liquid outlet pipe (40), a filtering module (50) corresponding to the valve body (10) is arranged on the liquid inlet pipe (30), and a vent hole (70) communicated with the liquid storage cavity is formed between the filtering module (50) and the valve body (10);

the valve body (10) comprises a magnetic conduction shell (11), a fixed iron core (141) is fixedly installed at one end of the magnetic conduction shell (11), a stainless steel sleeve (15) is arranged inside the magnetic conduction shell (11), and a movable iron core (142) which is coaxial with the fixed iron core (141) and has an axial inner cavity is arranged inside the stainless steel sleeve (15); a limiting block (18) is arranged at one end, located in the liquid storage cavity, of the movable iron core (142), a large spring (172) located between the inner wall of the liquid storage cavity and the limiting block (18) is sleeved on the outer side of the movable iron core (142), and a small spring (171) is axially arranged inside an axial inner cavity of the movable iron core (142); one end of the small spring (171) corresponding to the liquid storage cavity is provided with a sealing rubber gasket (161) located at the axial end of the movable iron core (142), the outer side of the sealing rubber gasket (161) is provided with a metal sealing element (162) in an axial direction, and the end of the metal sealing element (162) is in planar contact sealing with the sealing rubber gasket (161);

the valve body (10) further comprises an isolation sealing gasket (19), the outer ring of the isolation sealing gasket (19) is fixed between the magnetic conduction shell (11) and the three-way valve seat (20), and the inner ring of the isolation sealing gasket (19) is fixed to the outer ring of the metal sealing element (162); an isolation pipe (21) corresponding to the isolation sealing gasket (19) is arranged between the liquid inlet pipe (30) and the liquid outlet pipe (40), the liquid outlet pipe (40) is communicated with the isolation pipe (21), and the liquid inlet pipe (30) and the liquid outlet pipe (40) are connected and disconnected through the separation and reunion of the end part of the isolation pipe (21) and the isolation sealing gasket (19);

the end of the valve body (10) is further connected with a coil plug connector (60), and a lead of the coil plug connector (60) is electrically communicated with the fixed iron core (141).

2. The solenoid valve with exhaust function according to claim 1, wherein the filter module (50) comprises a filter screen (51) disposed inside the liquid inlet pipe (30), and a filter screen cover (52) for sealing the mounting port of the filter screen (51) to facilitate cleaning and replacement of the filter screen (51).

3. The dual spring solenoid valve with air exhaust function according to claim 1, wherein one end of the fixed iron core (141) located outside the magnetically conductive housing (11) is locked on the magnetically conductive housing (11) by a locking nut (12) and a metal gasket (13).

4. A double spring solenoid valve with venting function according to claim 1, characterized in that said isolating gasket (19) is corrugated to achieve a smooth water flow.

5. The dual-spring electromagnetic valve with the exhaust function according to claim 1, wherein one end of the magnetic conduction shell (11) is provided with an external thread corresponding to the three-way valve seat (20), the three-way valve seat (20) is provided with an internal thread corresponding to the external thread, and the magnetic conduction shell (11) and the three-way valve seat (20) are connected through the external thread and the internal thread and sealed through the sealing ring (80); the liquid storage cavity is formed between the inner wall of the magnetic conduction shell (11) and the isolation sealing gasket (19).

6. The electromagnetic valve with double springs and exhaust function of claim 1, wherein the three-way valve seat (20), the liquid inlet pipe (30) and the liquid outlet pipe (40) are of an integrally formed structure made of plastic.