CN216923373U - Armature assembly and carbon tank solenoid valve - Google Patents

Abstract

The utility model provides an armature assembly and a carbon tank solenoid valve. The armature assembly comprises an armature framework, wherein the armature framework is formed into a barrel shape with an open bottom end, the armature framework is a metal part, and a wear-resistant layer is covered on the surface of the armature framework in a surrounding manner; and the sealing gasket is arranged at the top end of the armature framework. According to the armature assembly provided by the embodiment of the utility model, the abrasion-resistant layer is arranged on the armature framework, so that the hardness and abrasion resistance of the armature assembly can be improved, and the service life of the armature assembly is prolonged.

Description

Armature assembly and carbon tank solenoid valve

Technical Field

The utility model relates to the technical field of carbon tank electromagnetic valve preparation, in particular to an armature assembly and a carbon tank electromagnetic valve with the same.

Background

The automobile carbon tank electromagnetic valve used in the market at present has short service life, and the main factor is that the armature framework made of metal is abraded to cause the inclination of the armature, so that the rubber seal at the upper end of the armature fails.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an armature assembly with high wear resistance and long service life.

Another object of the present invention is to provide a canister solenoid valve having the above armature assembly.

In order to realize the purpose, the utility model adopts the following technical scheme:

an armature assembly according to an embodiment of the present invention includes:

the armature framework is in a cylindrical shape with an open bottom end, is a metal part and is surrounded and covered with a wear-resistant layer;

and the sealing gasket is arranged at the top end of the armature framework.

Further, the wear-resistant layer is a nitriding layer.

Further, the wear-resistant layer is a boronized layer.

Further, the wear-resistant layer is a nitride and oxide composite permeation layer.

Further, the thickness of the wear-resistant layer is 10-100 μm.

Further, the top end of the sealing gasket is provided with a boss, and the bottom of the sealing gasket is provided with a plurality of protrusions.

In addition, the present invention also provides a canister solenoid valve comprising:

the valve body is internally provided with a cavity, and the bottom end of the valve body is provided with an air outlet;

the cover plate is arranged at the top end of the valve body, and an air inlet is formed in the upper end of the cover plate;

an armature assembly of any of the above embodiments, the armature assembly being mounted in the chamber and the gasket abutting the air inlet of the cover plate;

the spring penetrates through the armature framework from the bottom end of the armature framework, and the top end of the spring is connected with the inner top wall of the armature framework;

the stator is installed in the cavity and fixed below an armature framework in the armature assembly, and the other end of the spring is connected with the top end of the stator;

and the electromagnetic coil is sleeved on the outer sides of the armature frameworks in the stator and the armature assembly and is used for generating magnetic force to drive the armature assembly to move towards the stator so as to open the air inlet when the electromagnetic coil is electrified.

According to the carbon tank solenoid valve of the embodiment of the utility model, the carbon tank solenoid valve further comprises:

the bottom plate, be formed with first hole just on the bottom plate is fixed the apron bottom, the bottom plate diameter is less than sealed the pad diameter, wherein, armature assembly passes first hole butt is in the apron bottom.

According to the carbon tank solenoid valve of the embodiment of the utility model, the carbon tank solenoid valve further comprises:

the protective housing, the protective housing forms into the U-shaped just be formed with the second hole on the protective housing, the stator passes the second hole is fixed on the protective housing.

According to the carbon tank solenoid valve of the embodiment of the utility model, the carbon tank solenoid valve further comprises:

the coil framework is installed in the cavity of the valve body, and the electromagnetic coil is installed on the coil framework.

The technical scheme of the utility model at least has the following beneficial effects:

according to the carbon tank electromagnetic valve disclosed by the embodiment of the utility model, the abrasion-resistant layer is covered on the armature framework, so that the abrasion resistance and hardness of the whole armature assembly can be improved, and the service life of the whole carbon tank electromagnetic valve is prolonged;

furthermore, the wear-resistant layer is a boronizing layer, and the corrosion resistance and the heat resistance of the armature assembly can be improved.

Drawings

FIG. 1 is a schematic structural view of an armature assembly according to an embodiment of the present invention;

FIG. 2 is a front view of an armature assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a canister solenoid valve according to an embodiment of the utility model.

Reference numerals:

1. an armature skeleton; 2. a gasket; 3. a boss; 4. a boss portion; 5. a valve body; 6. a cover plate; 7. a spring; 8. an air outlet; 9. an air inlet; 10. a stator; 11. an electromagnetic coil; 12. a base plate; 13. a protective shell; 14. and a coil framework.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model, are within the scope of the utility model.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

An armature assembly and a canister solenoid valve according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-2, an armature assembly according to an embodiment of the present invention includes an armature frame 1 and a gasket 2.

Armature skeleton 1 forms the open cask form in bottom, and armature skeleton 1 has the wearing layer for metal parts and surface surround to cover, from this through covering the wearing layer on armature skeleton 1 surface, can promote the holistic hardness of this armature subassembly and abrasion resistance to this carbon tank solenoid valve's life has been prolonged.

The sealing gasket 2 is arranged at the top end of the armature framework 1 and plays a role in sealing and protecting the armature framework 1.

Further, the wear-resistant layer is a nitriding layer. The surface of the armature skeleton 1 may be nitrided to form a nitrided layer. The nitriding treatment mode comprises gas nitriding, salt bath nitriding, ion nitriding and the like, and the nitriding layer can obviously improve the hardness and the wear resistance of the surface of the armature framework, so that the service life of the carbon tank electromagnetic valve is prolonged.

Further, the wear-resistant layer is a boronized layer. The surface of the armature skeleton 1 can be subjected to boronizing treatment to form a boronized layer. The boronizing treatment modes comprise solid boronizing, liquid boronizing, gas boronizing, fluid boronizing and the like, and the hardness, the wear resistance, the corrosion resistance, the heat resistance and the like of the armature assembly after boronizing treatment can be greatly improved.

Further, the wear-resistant layer is a nitride and oxide composite permeation layer. The surface of the armature framework 1 can be subjected to quenching-polishing-quenching treatment (namely QPQ treatment), so that a nitride and oxide composite permeation layer with excellent wear resistance and corrosion resistance is prepared on the surface of the armature framework 1, the hardness and wear resistance of the surface of the armature framework 1 are obviously improved, and the service life of the carbon tank electromagnetic valve is prolonged.

Furthermore, the thickness of the wear-resistant layer is 10-100 μm, and the hardness and the wear resistance of the armature assembly are further improved by arranging the wear-resistant layer with a certain thickness on the surface of the armature framework 1.

Further, a boss 3 is formed at the top end of the gasket 2, and a plurality of protrusions 4 are formed at the bottom of the gasket 2.

As shown in fig. 3, an embodiment of the present invention further provides a canister solenoid valve, which includes an armature assembly, a valve body 5, a cover plate 6, a spring 7, a stator 10, and an electromagnetic coil 11 according to any of the above embodiments.

The valve body 5 is internally provided with a cavity and the bottom end is provided with an air outlet 8.

The cover plate 6 is arranged at the top end of the valve body 5, and the upper end of the cover plate 6 is provided with an air inlet 9.

The armature assembly is mounted in the chamber and the gasket 2 abuts the air inlet 9 of the cover plate 6.

The spring 7 penetrates through the armature framework 1 from the bottom end of the armature framework and the top end of the spring 7 is connected with the inner top wall of the armature framework 1.

The stator 10 is installed in the chamber and fixed under the armature frame 1 in the armature assembly, and the other end of the spring 7 is connected to the top end of the stator 10.

The electromagnetic coil 11 is sleeved outside the armature framework 1 in the stator 10 and the armature assembly and used for generating magnetic force to drive the armature assembly to move towards the stator 10 to open the air inlet when the armature assembly is electrified.

That is, when the electromagnetic coil 11 is energized, the armature framework 1 moves away from the air inlet 9 and towards the stator 10 through the spring 7 under the magnetic force of the electromagnetic coil 11, the sealing gasket 2 is also away from the air inlet 9, and at the moment, the gasoline steam enters the carbon canister electromagnetic valve from the air inlet 9 and leaves from the air outlet 8; when the electromagnetic coil 11 is de-energized, the armature frame 1 moves away from the stator 10 toward the intake port 9 by the spring 7, thereby closing the intake port 9.

The canister solenoid valve according to the embodiment of the present invention, as shown in fig. 3, further includes a bottom plate 12. A first hole is formed in the bottom plate 12, the bottom plate 12 is fixed to the bottom end of the cover plate 6, the diameter of the bottom plate 12 is smaller than that of the sealing gasket 2, and the armature assembly penetrates through the first hole and abuts against the bottom end of the cover plate 6. Armature assembly receives under the magnetic force effect, when moving the process to stator 10, bottom plate 12 can support sealed 2 pads to make armature assembly stop moving, so bottom plate 12 can play the limiting displacement of certain degree at armature assembly to stator 10 removal in-process.

The canister solenoid valve according to the embodiment of the present invention, as shown in fig. 3, further includes a protective case 13. The protective housing 13 is formed in a U shape, and a second hole is formed in the protective housing 13, through which the stator 10 is fixed to the protective housing 13. The protective shell 13 can protect and fix the stator 10.

The canister solenoid valve according to the embodiment of the present invention, as shown in fig. 3, further includes a bobbin 14. The bobbin 14 is mounted in the chamber of the valve body 5, and the electromagnetic coil 11 is mounted on the bobbin 14. The electromagnetic coil 11 can be fixedly protected by providing the bobbin 14.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (10)

1. An armature assembly, comprising:

the armature framework is in a cylindrical shape with an open bottom end, is a metal part and is surrounded and covered with a wear-resistant layer;

and the sealing gasket is arranged at the top end of the armature framework.

2. The armature assembly of claim 1, wherein the wear layer is a nitrided layer.

3. The armature assembly of claim 1, wherein the wear layer is a boronized layer.

4. The armature assembly of claim 1, wherein the wear layer is a nitride and oxide infiltration layer.

5. The armature assembly of claim 1, wherein the wear layer has a thickness of 10 μm to 100 μm.

6. The armature assembly of claim 1, wherein the top end of the seal is formed with a boss and the bottom of the seal is formed with a plurality of protrusions.

7. A canister solenoid valve, comprising:

the valve body is internally provided with a cavity, and the bottom end of the valve body is provided with an air outlet;

the cover plate is arranged at the top end of the valve body, and an air inlet is formed in the upper end of the cover plate;

an armature assembly as claimed in any one of claims 1 to 6 mounted in the chamber with the gasket abutting the air inlet of the cover plate;

the spring penetrates through the armature framework from the bottom end of the armature framework, and the top end of the spring is connected with the inner top wall of the armature framework;

the stator is installed in the cavity and fixed below an armature framework in the armature assembly, and the other end of the spring is connected with the top end of the stator;

and the electromagnetic coil is sleeved on the outer sides of the armature frameworks in the stator and the armature assembly and is used for generating magnetic force to drive the armature assembly to move towards the stator so as to open the air inlet when the electromagnetic coil is electrified.

8. The canister solenoid valve as recited in claim 7 further comprising:

the bottom plate, be formed with first hole just on the bottom plate is fixed the apron bottom, the bottom plate diameter is less than sealed the pad diameter, wherein, armature assembly passes first hole butt is in the apron bottom.

9. The canister solenoid valve as recited in claim 7 further comprising:

the protective housing, the protective housing forms into the U-shaped just be formed with the second hole on the protective housing, the stator passes the second hole is fixed on the protective housing.

10. The canister solenoid valve as recited in claim 7 further comprising:

the coil framework is installed in the cavity of the valve body, and the electromagnetic coil is installed on the coil framework.

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