CN2773416Y

CN2773416Y - Electromagnetic valve of carbon pot

Info

Publication number: CN2773416Y
Application number: CN 200520020083
Authority: CN
Inventors: 马南; 刘耀武; 郭玉山
Original assignee: ZHIYANG AUTOMOTIVE ELECTRICAL CO Ltd HARBIN
Current assignee: ZHIYANG AUTOMOTIVE ELECTRICAL CO Ltd HARBIN
Priority date: 2005-01-17
Filing date: 2005-01-17
Publication date: 2006-04-19
Anticipated expiration: 2015-01-17

Abstract

The utility model relates to an electromagnetic valve of a carbon pot. A skeleton for coiling the electromagnetic coil is arranged inside a shell in which a groove is arranged; a thread fitted ferrite core and a movable valve core are arranged in the axle hole of the skeleton, one end of the movable valve core is provided with a noise abating rubber pad, the other end is provided with a sealing stopper, and the movable valve core forms interstice assembly with the axle hole of the skeleton. One end of a reset spring is sheathed on one side of the noise abating rubber pad of the movable valve core, and the other end is sheathed on the stepped shaft of the ferrite core. A closed magnetic conductive plate is surrounded around the outside of the electromagnetic coil. The utility model has the advantages that when in production and assembly, the gap between the movable valve core and the ferrite core can be adjusted by screwing the ferrite core in and out. Therefore, the common error requirement for parts is reduced, and the processing cost of parts is also reduced, and the qualification rate of products is enhanced.

Description

Valve EGR

Affiliated technical field

The utility model relates to a kind of Valve EGR, is particularly useful for controlling the fuel steam discharge system.

Background technique

State Intellectual Property Office is to have in the shell that draw-in groove is installed in the Valve EGR utility model patent of bulletin on January 29th, 2003, the skeleton that a coiling electromagnetic coil is arranged, a secured core and the movable core that sealing gasket is arranged are arranged in the axis hole of skeleton, movable core and skeleton matching hole are the gap assemblings, Returnning spring is enclosed within on the movable core, Returnning spring one end withstands on the skeleton, one end withstands on the sealing gasket, at electromagnetic coil outer most surrounding iron yoke, fill insulating medium in the space between shell and electromagnetic coil, skeleton, iron yoke.Gap length in this structure between secured core and the movable core is unadjustable, causes the tolerance of accessory size relatively harshlyer, and the part processing cost is than higher, and assembling back product qualified rate is not really high.

Summary of the invention

In order to overcome above-mentioned deficiency, the utility model provides Valve EGR a kind of reasonable in design, simple in structure.

For achieving the above object, the technical solution adopted in the utility model is: the skeleton that the coiling electromagnetic coil is housed in the housing that draw-in groove is installed, the iron core of screw-thread fit is installed in the axis hole of skeleton, there are the noise abatement rubber pad and the other end that the movable spool of the axis hole gap assembling of sealing plug and skeleton is arranged with an end, one end of Returnning spring is enclosed within a side of the noise abatement rubber pad of movable spool, the other end is enclosed within on the multidiameter shaft of iron core, the closed magnetic conducting plate of electromagnetic coil outer most surrounding.

Advantage of the present utility model is: simple in structure, in the production assembly process, can obtain accurate flow value by regulating the gap between iron core and the movable spool, therefore, the rate that manufactures a finished product height.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A sectional drawing of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described further.

By Fig. 1-Fig. 2 as seen,

Described Valve EGR, the skeleton 4 of coiling electromagnetic coil 7 is housed in the housing 5 that draw-in groove 10 is installed, the iron core 9 of screw-thread fit is installed in the axis hole of skeleton 4, there are the noise abatement rubber pad 11 and the other end that the movable spool 12 of the axis hole gap assembling of sealing plug 13 and skeleton 4 is arranged with an end, one end of Returnning spring 6 is enclosed within a side of the noise abatement rubber pad 11 of movable spool 12, the other end is enclosed within on the multidiameter shaft of iron core 9, the closed magnetic conducting plate 8 of electromagnetic coil 7 outer most surrounding.

Be inserted with semicircle magnetic conducting plate 3 between described closed magnetic conducting plate 8 and the skeleton 4.

A suction port (14) and an air outlet (1) are arranged on the described shell, and be provided with signal socket (2).

The utility model Valve EGR is to open and close action by electrical pulse control, and when electrical pulse was arranged, iron core 9 had produced electromagnetic attraction, and movable spool 12 drive sealing plugs 13 move to the direction that deviates from air outlet 1 under the electromagnetic attraction effect, and Valve EGR is opened.When electrical pulse disappeared, because the tension force effect of Returnning spring 6, movable spool 12 drove the direction of sealing plug 13 to air outlet 1 and moves on the interior edge face that is blocked in air outlet 1, and Valve EGR is closed.

Claims

1. Valve EGR, comprise housing, it is characterized in that: the skeleton (4) that coiling electromagnetic coil (7) is housed in the housing (5) that draw-in groove (10) is installed, the iron core (9) of screw-thread fit is installed in the axis hole of skeleton (4), there are the noise abatement rubber pad (11) and the other end that the movable spool (12) of axis hole gap sealing plug (13) and skeleton (4) assembling is arranged with an end, one end of Returnning spring (6) is enclosed within a side of the noise abatement rubber pad (11) of movable spool (12), the other end is enclosed within on the multidiameter shaft of iron core (9), the closed magnetic conducting plate (8) of electromagnetic coil (7) outer most surrounding.

2. according to the described Valve EGR of claim 1, it is characterized in that: be inserted with semicircle magnetic conducting plate (3) between described closed magnetic conducting plate (8) and the skeleton (4).

3. according to the described Valve EGR of claim 1, it is characterized in that: a suction port (14) and an air outlet (1) are arranged on the shell, and be provided with signal socket (2).