CN105697079A

CN105697079A - OCV valve structure

Info

Publication number: CN105697079A
Application number: CN201410708638.0A
Authority: CN
Inventors: 朱圣明; 景云勇
Original assignee: Jiangsu Sea Otter Electrical Appliances Co Ltd
Current assignee: Jiangsu Sea Otter Electrical Appliances Co Ltd
Priority date: 2014-11-27
Filing date: 2014-11-27
Publication date: 2016-06-22

Abstract

The invention relates to an OCV valve structure. The OCV valve structure is characterized by comprising a magnet body part and a valve body part; the magnet body part and the valve body part are connected through a mounting bracket; the mounting bracket is a plane punching part; and a center hole of the mounting bracket is in interference fit with an outer circle at the top end of the valve body part, and is limited through a step at the top of the valve body part. The OCV valve structure has the following advantages: the mounting bracket is simple in structure; the perpendiculartiy of the mounting bracket and the valve body part is effectively guaranteed; and the oil leakage risk of assembling an OCV valve on an engine is prevented.

Description

A kind of OCV valve arrangement

Technical field

The present invention relates to a kind of OCV valve arrangement。

Background technology

Variable Valve Timing Technique of IC Engine (VVT, VariableValveTiming), is by controlling IO Intake Valve Opens angular advance and postponing to regulate air inflow, few to reach slow-speed of revolution air inlet, reduces oil consumption；High rotating speed air inlet is big, increases the final purpose of power。Due to low row, fuel-efficient, Gao Gong, in the last few years, VVT technology was widely used on modern car。VVT system is generally assembled with cam shaft system combination, is combined by the phase place finger setting of camshaft front end, fastens with the fixing bolt of VVT。Mainly it is made up of VVT assembly and OCV Oil Control Valve (OCV)。

OCV valve essence is a magnetic slide valve controlling machine oil direction and flow。Mainly it is made up of electromagnet segments and body portion。When OCV valve loads electromotor, first the valve pocket of body portion is inserted the installing hole on engine cylinder lid, make the mounting bracket on electromagnet shell fit to cylinder cap plane；Then with screw through the installing hole in mounting bracket, OCV valve is fastened on cylinder cap。

At present general OCV valve mounting bracket is all welded on the shell of electromagnet segments, or mounting bracket is integral type stamping parts together with the shell of electromagnet segments。Both modes are all not easy the perpendicularity ensureing mounting bracket with valve pocket。When its perpendicularity difference, assemble rear valve pocket and can be subject to a side force, cause that the monolateral gross distortion amount that is squeezed of the O being assemblied in valve pocket peripheral groove is big, and opposite side is almost without deformation, now there is leakage of oil risk。Therefore, it should provide a kind of new technical scheme to solve the problems referred to above。

Summary of the invention

It is an object of the invention to: for above-mentioned deficiency, it is provided that a kind of OCV valve arrangement。

For achieving the above object, the technical solution used in the present invention is:

A kind of OCV valve arrangement, OCV valve includes magnet part and body portion, magnet part and body portion are connected by mounting bracket, and mounting bracket is flat die part, the top cylindrical interference fit of the centre bore of mounting bracket and body portion to pass through the step at body portion top spacing。

In technique scheme, owing to mounting bracket is flat die part, its flatness can ensure simply by shaping of clapping, and its direct and body portion interference fit, and perpendicularity is easily guaranteed that。

Due to the application of technique scheme, the present invention compared with prior art has the advantage that

Mounting support structure is simple, is effectively guaranteed and installs directly and the perpendicularity of body portion, has stopped the leakage of oil risk that OCV valve is assembled on electromotor。

Accompanying drawing explanation

Accompanying drawing 1 is the general assembly drawing of the present invention。

In the figures above: 1, plastic filter screen, 2, jump ring, 3, spring base, 4, spring, 5, valve pocket, 6, spool, 7, filter screen, 8, counterbore, 9, mounting bracket, 10, step, 11, O, 12, inner cover, 13, lower pole shoe, 14, magnetic shield, 15, armature, 16, push rod, 17, centre bore, 18, shell, 19, contact pin。

Detailed description of the invention

Below in conjunction with drawings and Examples, the invention will be further described:

Embodiment one:

As shown in Figure 1, a kind of OCV valve arrangement of the present invention, OCV valve includes magnet part and body portion, magnet part and body portion are connected by mounting bracket 9, mounting bracket 9 is flat die part, the top cylindrical interference fit of the centre bore of mounting bracket and body portion to pass through the step 10 at body portion top spacing。

Owing to mounting bracket 9 is flat die part, its flatness can ensure simply by shaping of clapping, and its direct and body portion interference fit, and perpendicularity is easily guaranteed that。

Mounting bracket 9 simple in construction, is effectively guaranteed and installs directly and the perpendicularity of body portion, stopped the leakage of oil risk that OCV valve is assembled on electromotor。

The top of magnet part is inserted with contact pin 19。

Magnet part includes shell 18, inner magnet structure, shell 18 is internally connected with inner magnet structure, inner magnet inside configuration is provided with coil 21, coil 21 is internal be provided with by the inner cover 12 of separation, it is socketed with pole shoe 20 between top, outer end and the coil 21 of inner cover 12, the armature 15 that it is separated into upper and lower two chambers it is provided with in inner cover 12, between the periphery of armature 15 with inner cover 12, small-gap suture coordinates, the bottom chamber of inner cover 12 is provided with lower pole shoe 13, it is plugged with push rod 16 in the central through hole of lower pole shoe 13, the top of push rod 16 presses fit in the centre bore of armature 15 by interference, lower pole shoe 13 the junction of upper end and push rod 16 be provided with magnetic shield 14, the cylinder of magnetic shield 14 is press fit in the central through hole of lower pole shoe 13 and interference fit with it, the lower surface of the circular flat of magnetic shield 14 coordinates with lower pole shoe 13 end face, the cylinder of magnetic shield 14 coordinates with the periphery small-gap suture of push rod 16, the bottom of lower pole shoe 13 press fit into body portion upper port in。

The small-gap suture between small-gap suture cooperation and push rod 16 and magnetic shield 14 between armature 15 and inner cover 12 coordinates, all serve guide effect, and press-fit into an entirety owing to press-fiting into the interference between an entirety and magnetic shield 14 and lower pole shoe 13 for interference between push rod 16 and armature 15, achieve the armature 15 axial concentric problem in OCV valve, reduce the coefficient of friction of armature 15, it is ensured that the superiority of OCV valve。

Body portion includes valve pocket 5, spool 6 and spring 4, the upper port of valve pocket 5 is for being pressed with lower pole shoe 13 counterbore 8, valve pocket 5 is internal is provided with spool 6, centre bore 17 is offered in valve pocket 5, the spring 4 connecting spool 6 it is provided with in bottom centre bore 17, the bottom end opening place of valve pocket 5 positions spring base 3 by jump ring 2, and spring base 3 connects spring 4。

Centre bore 17 is a through hole, it is simple to boring and honing；In the upper port of valve pocket 5, processing has counterbore 8, facilitates pole shoe 13 under plug-in mounting。

Valve pocket 5 surface uses hard anodizing to process, and improves wearability。

In said structure, in order to improve the sealing of overall OCV valve: step 10 lower end of valve pocket 5 is socketed with O 11, it is socketed with O 11 between lower pole shoe 13 and the upper port of valve pocket 5, it is socketed with O 11 between lower pole shoe 13 and inner cover 12, between inner magnet upper end and housing 18, is socketed with O 11。

Simultaneously in order to enter the clean rate of the machine oil in OCV valve, it is provided with plastic filter screen 1 in the bottom of valve pocket 5, also between first, the upper end of valve pocket 5 projection and step 10, overlap a filter screen 7 simultaneously, bottom valve pocket 5, between first projection and second, bottom projection, be cased with filter screen 5。

The above is the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from principle of the present invention; can also making some improvement or replacement, these improve or replace and also should be regarded as protection scope of the present invention。

Claims

1. an OCV valve arrangement, it is characterized in that: described OCV valve includes magnet part and body portion, described magnet part and body portion are connected by mounting bracket, described mounting bracket is flat die part, the top cylindrical interference fit of the centre bore of described mounting bracket and body portion to pass through the step at body portion top spacing。

2. a kind of OCV valve arrangement according to claim 1, it is characterised in that: the top of described magnet part is inserted with contact pin。

3. a kind of OCV valve arrangement according to claim 1, it is characterized in that: described magnet part includes shell, inner magnet structure, described enclosure is connected to inner magnet structure, described inner magnet inside configuration is provided with coil, described coil inside be provided with by the inner cover of separation, it is socketed with pole shoe between top, outer end and the coil of described inner cover, the armature that it is separated into upper and lower two chambers it is provided with in described inner cover 12, between the periphery of described armature and inner cover, small-gap suture coordinates, the bottom chamber of described inner cover is provided with lower pole shoe, it is plugged with push rod in the central through hole of described lower pole shoe, the top of described push rod presses fit in the centre bore of armature by interference, described lower pole shoe the junction of upper end and push rod be provided with magnetic shield, the cylinder of described magnetic shield is press fit in the central through hole of lower pole shoe and interference fit with it, the lower surface of the circular flat of described magnetic shield coordinates with lower pole shoe end face, the cylinder of described magnetic shield coordinates with the periphery small-gap suture of push rod, the bottom of described lower pole shoe press fit into body portion upper port in。

4. a kind of OCV valve arrangement according to claim 3, it is characterized in that: described body portion includes valve pocket, spool and spring, the upper port of described valve pocket is for being pressed with lower pole shoe counterbore, it is provided with spool inside described valve pocket, centre bore is offered in described valve pocket, being provided with the spring connecting spool in bottom described centre bore, the bottom end opening place of described valve pocket positions spring base by jump ring, and described spring base connects spring。

5. a kind of OCV valve arrangement according to claim 4, it is characterized in that: the step lower end of described valve pocket is socketed with O, it is socketed with O between described lower pole shoe and the upper port of valve pocket, it is socketed with O between described lower pole shoe and inner cover, between described inner magnet upper end and housing, is socketed with O。

6. a kind of OCV valve arrangement according to claim 5, it is characterised in that: the bottom of described valve pocket is provided with plastic filter screen, and valve pocket outer surface upper and lower is provided with filter screen。