KR101682299B1

KR101682299B1 - Vehicle actuated clutches and differential devices assy

Info

Publication number: KR101682299B1
Application number: KR1020150066374A
Authority: KR
Inventors: 최병선
Original assignee: 주식회사 신라공업
Priority date: 2015-05-13
Filing date: 2015-05-13
Publication date: 2016-12-02
Also published as: KR20160133636A

Abstract

The present invention is to provide a solenoid clutch for a clutch of an automotive differential device capable of improving the returning force of an inner flange and an out flangeler and has a space for reducing surface frictional force between the inner flange and the inner housing, In order to reduce the adhesion force formed by the oil and working oil, an inner plenum is formed, which has a support hole for securing the floor and space of the inner housing. In order to prevent the loss of the electromagnetic force due to the smooth movement of the magnetic field generated by the coil assembly, An inner housing and an inner plate made of a non-magnetic material so as to prevent the electromagnetic force from being lost to the outside for securing an optimum electromagnetic force, and a solenoid- In order to smooth the flow of oil in the interior of the plate, An oil passage groove is formed in the inner housing and a fixing groove is formed in the outer housing for preventing the rotation of the solenoid assy,
According to the present invention, the effect of minimizing the surface friction between the inner flange and the inner housing and the adhesion of the oil to the inner flange and securing the escape space of the foreign material enables smooth operation of the inner flanger, It is effective to move the electromagnetic force and the non-magnetic material to prevent the loss of electromagnetic force due to the magnetic field generated by the coil assembly so that the outplaner and the innerplane operate smoothly.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a solenoid assy for a vehicle differential,

The present invention relates to a structure of an inner flange and an outer flange so as to reduce the loss of electromagnetic force so that the function of connecting or disconnecting the differential gear lock can be more completely carried out, And more particularly to a clutch solenoidassay of an improved automotive differential.

As is known, a differential apparatus of an automobile is configured to be able to differentially distribute a driving force of an engine in accordance with a resistance applied to both wheels. In this case, a differential case is rotatably installed inside a carrier, And a side gear engaged with both sides of the pinion. The hub side of the two side gears and the wheel are connected to a drive shaft to transmit engine power.

A solenoid assy that operates a clutch constituting a differential device of an automobile having the above functions operates the outboard and inner planetary gears by using a magnetic field generated from a coil assembly, And separates them.

The structure of the solenoid clutch for a clutch of the differential device according to the related art has a structure in which the inner flange is in close contact with the inner housing so that the surface frictional force acts largely, There is a disadvantage that the operation of the inner plunger driven by the out-flanger is not smooth.

In addition, since the outer flange is formed in a cylindrical shape having the same cross-sectional thickness, it is disadvantageous in that a magnetic field generated by the coil assembly is widely formed and can not smoothly and intensively move to the plate, It is disadvantageous in that the response force of the out-flanger and the inner flanger is deteriorated due to the result that the response is greatly reduced even in the presence of a small amount of the residual electromagnetic force due to the strong holding force.

In addition, since the outer housing, out flanger, and plate, which constitute the solenoid assembly, are made of a steel material, the solenoid assy is electromagnetized even when the solenoid assy is turned off to form an electromagnetic force, There is a disadvantage that it falls off.

In addition, because there is no oil passage groove in the solenoid assy, the flow of the working oil existing inside the solenoid assy is not smooth, and the oil pressure difference is generated, so that the returning force of the inner plastic is decreased. There is a problem that the quality of the solenoid assy is greatly deteriorated.

Korean Patent Publication No. 10-2002-0035933 (published May 16, 2002) Korean Patent Laid-Open No. 10-2003-0011740 (published Feb. 11, 2003) Korean Patent Publication No. 10-2011-0026986 (published on March 16, 2011)

A solenoid assembly for a clutch of an automotive differential apparatus according to the present invention is for solving the above problems and has a structure in which a surface friction force between the inner flange and the inner housing is minimized, In addition,

The electromagnetic force generated by the magnetic field generated by the coil assembly can be prevented from moving in the process of moving to the outer plate and the plate, and the electromagnetic force can be smoothly moved to the plate,

It provides a solenoid clutch solenoid for automotive differentials that can prevent rotation of the solenoid assy and improve the return force of the inner and outer flanges by reducing the oil pressure difference by smoothly flowing the working oil inside. It has its purpose.

In order to achieve the above object, a solenoid clutch for a clutch of an automotive differential device of the present invention is characterized in that a solenoid clutch for a clutch of a vehicle differs from a solenoid valve of an automotive differential apparatus in that a surface frictional force is reduced between an inner plunger and an inner housing, An inner plenum having a bottom wall and a supporting wall for securing a space,

A plate having an outer flange and an inclined portion having an inclined surface and a conical upper surface on an upper surface thereof in order to smoothly move the magnetic field generated by the coil assembly to the plate to prevent loss of electromagnetic force,

The inner housing and the inner plate are made of non-magnetic material so as to prevent the electromagnetic force from being lost to the outside in order to secure the optimum electromagnetic force. In order to smoothly flow the oil into the solenoid assy, And a fixing groove is formed in the outer housing for preventing rotation of the solenoid assembly.

As described above, according to the present invention, it is possible to minimize the adhesion between the inner flange and the inner housing and the adhesion between the inner friction member and the oil,

It can be applied to the outer flange and the plate smoothly by the movement of electromagnetic force and non-magnetic material to prevent loss of electromagnetic force due to the magnetic field generated by the coil assembly, so that the out-flanger and inner-

The solenoid assy is rotated and the flow of working oil inside is smooth, so that the oil pressure difference can be reduced to improve the return force of the inner and outer solenoids. .

Fig. 1 is a perspective view showing the entire configuration of a solenoidassay
Fig. 2 is a sectional view showing the state before the solenoid assembly is operated
Figure 3 is a cross-sectional view of the solenoidassay
Fig. 4 is a cross-sectional view of a portion A of Fig. 2 which is a main part of the present invention
FIG. 5 is a graph of the electromagnetic force flow of the solenoidassay according to the present invention

The structure of a clutch solenoid assembly of an automotive differential apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

The clutch solenoid assembly of the automotive differential unit includes an outer housing 11 in which the coil assembly 10 is loaded, a plate 12 covering the outer housing 11, and an inner housing 13 inside the solenoid assembly, An outplanter 1 operated by an electromagnetic force using a magnetic field generated in the coil assembly 10 and an innerplanter 5 interlocked with the outplanter 1 are installed .

In the construction of the solenoid clutch for a clutch of the automotive differential apparatus configured as described above, the space portion 6 formed on the inner surface of the inner flange 5 for the purpose of reducing frictional force with the inner housing 13 and securing a space for escaping foreign matter during operation of the inner flange 5 Lt; / RTI &

A retaining projection 7 is formed at the lower end of the inner plenum 5 for the purpose of fixing the initial position of the inner plenum 5 and preventing adhesion by oil during operation,

A conical upper part 2 for preventing an electromagnetic force generated in a circumferential direction for increasing an initial operating force and a holding force of the outplanter 1 and an outflow plenum 1 for improving return response between the plate 12 The outer flange 1 is formed with the inclined surface 3 on its upper surface for line contact,

An oil passage groove 21 is formed in the plate 12 and the inner housing 13 for preventing malfunction caused by oil introduced into the solenoid assy 20 and the rotation of the solenoid assy 20 The outer housing 11 and the plate 12 are provided with anti-rotation grooves 22 for preventing the rotation of the outer housing 11,

The inner housing 13 is constructed such that the inner housing receiving portion 14 is formed in a radial shape for reducing the welding portion, shortening the welding C / T and shortening the weight during laser welding, and preventing the inner housing 13 and the inner plastic Molybdenum or Teflon coating is applied to the entire inner housing 13 in order to reduce the frictional force during operation of the shaft and the inner plenum 5,

An inclined portion 12 'is formed on the plate 12 so that a magnetic field generated from the coil assembly 10 can smoothly move from the outplanter 1 to the plate 12. [

Reference numeral 50 in the drawing denotes an entire magnetic field line.

The operation of the clutch solenoid assembly of the automotive differential apparatus according to the present invention will be described in detail as follows.

First, let's look at the basic operation of clutch solenoid assy for automotive differentials.

Electricity is supplied to the coil assy 10 when operation of the differential device is required in a state where a shaft (not shown) constituting a differential device is attached to the automobile differential device and the inner housing 13 is engaged.

Then the electromagnetic force due to the magnetic field generated in the coil assembly 10 is transferred to the outer housing 11 and the outer plenum 1 and the plate 12 and the outer flange 1 is moved to the inner plen 5, the differential gear locking device is connected to the plate 12. When the electric power supplied to the coil assy 10 is shut off, the electromagnetic force is extinguished, and the outboard motor 1 is driven by the inner plunger 5 ) To return to the initial state.

Hereinafter, the operation of the clutch solenoidassay of the automotive differential system according to the present invention will be described.

First, when electricity is supplied to the coil assembly 10 constituting the solenoid assy 20, a magnetic field is generated in the coil assembly 10.

5, the electromagnetic force exerted by the electromagnetic force causes the outplanter 1 to be pushed toward the plate 12 while moving to the out-housing 11, the plate 12, and the out-flannel 1 By this action, the inner plenum 5 engaged with the outboard flange 1 also moves together to connect the differential gear lock.

The reason why the electromagnetic force to cause such action can be transferred to the outer housing 11, the plate 12 and the outer plenum 1 without loss is that the inner housing 13 and the inner plenum 5 are made of a non- And the outer shape of the outboard flange 1 is formed by the conical upper portion 2 and the electromagnetic force generated in the circumferential direction by the inclined portion 12 'of the plate 12 is concentrated without being dispersed So that the electromagnetic force loss is prevented.

Since the inclined surface 3 formed on the upper surface of the outboard flange 1 is in a line contact state when the outboard flange 1 is operated and contacts the plate 12, So that the response is improved.

Since the interval between the outer flange 1 and the bottom of the inner housing is always maintained by the support protrusion 7 formed at the lower portion of the out flusher 1, the out flange 1 is not affected by the adhesive force by the oil, So that the base 1 can be smoothly operated.

The plate 12 constituting the solenoid assy 20 and the oil passage groove 21 formed in the inner housing 13 allow the oil introduced into the solenoid assy 20 to circulate, It is possible to prevent defects.

Since the receiving portion 14 of the inner housing 13 is formed in a radiation shape, the welding portion is reduced during laser welding, and the weight of the solenoid assy 20 is reduced to shorten the welding C / T and reduce the weight Since the molybdenum or Teflon coating is applied as a whole, it acts to reduce the frictional force during operation of the shaft and the inner plenum 5.

When the solenoid assy 20 is mounted on the automotive differential apparatus, the fixing groove 22 formed in the out housing is coupled to a locking protrusion (not shown) formed on the mounting portion of the solenoid assy 20, (Not shown), the solenoid assy 20 functions to hold the solenoid assy 20 without being influenced.

1: out plane 2: conical top
3: slope 5: inner plane
6: space part 7:
10: coil assembly 11: out housing
12: plate 12 ': inclined portion
13: Inner housing 20: Solenoid Assy
21: oil passage groove 22: rotation preventing groove

Claims

A space portion formed on the inner surface for reducing frictional force with the outer housing and securing a space for escaping foreign matter when the inner and outer planes are operated,
An inner plunger having a supporting structure at the bottom for fixing the initial position of the inner plunger and preventing adhesion due to oil during operation;
A conical upper portion for preventing an electromagnetic force generated in the circumferential direction for increasing the initial operating force and the holding force of the outboard flange,
An outplaner for improving the return response of the outplanter and an outplaner having a sloped surface formed on the upper surface for line contact between the plate and the plate;
A plate and an inner housing having grooves for oil passage for preventing malfunction caused by oil introduced into the solenoid assembly;
The inner housing is formed in a radial shape to reduce the welded area, shorten the welding C / T and reduce the weight during laser welding, and to reduce the frictional force during operation of the shaft and inner plenum, molybdenum or Teflon coating And a solenoid assembly for a clutch of an automotive differential.

The clutch solenoid assembly of claim 1, wherein the outer housing is formed with a rotation preventing groove to prevent rotation of the solenoid assy.

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The clutch solenoid assembly of claim 1, wherein the inner housing and the inner plate are made of a non-magnetic material to prevent electromagnetic force loss.

The clutch solenoid assembly of claim 1, wherein an inclined surface is formed on the plate so that the magnetic field can smoothly move from the outboard flange to the plate.