CN104599904B - Electric device - Google Patents

Abstract

The present invention relates to a kind of electric device (1), relay switch especially for motor vehicles, this electric device has at least substantially for columnar shell (2), in this shell, it is provided with the armature (4) being axially movable and is used for moving the magnetic coil (3) being energized of armature (4), wherein said magnetic coil (3) has winding wire (7), this winding wire is wound into the layer of multiple radial direction coaxially relative to armature (3), and this winding wire has two line end (9 freely, 10), described line end is arranged on an axial side of magnetic coil (3) together.Present invention provide that, arranging the sleeve pipe (11) accommodating magnetic coil (3) in shell (2), its middle sleeve (11) has longitudinal seam (12), guides a line end (10) by this longitudinal seam.

Description

Electric device

Technical field

The present invention relates to a kind of electric device, especially for the relay switch of motor vehicles, It is at least substantially cylindrical shell that this electric device has, and arranging in this shell can axle To the armature of movement with for moving the magnetic coil being energized of armature, wherein said magnetic Coil has winding wire and two line end freely, and this winding wire is to relative to armature coaxially Being wound into the layer of multiple radial direction, described line end is arranged on the axial side of magnetic coil together.

Background technology

The electric device of the type mentioned during beginning is such as known from DE 296 11 004 U1. Here in armature is axially movably supported on cylindrical or cup-shaped shell, at this shell In be coaxially disposed, also relative to this armature, the magnetic coil that can be energized.When assembling this Magnetic coil simply axially pushes in shell.Magnetic coil be generally of at least one around Group line, described winding wire winds in the layer of multiple radial directions and has the number of turn of regulation to this. For this device it is desirable for the line end freely of winding wire in the side of shell from shell Draw.It is therefore advantageous that these line ends are arranged on an axial end of magnetic coil together Portion, in order to it is possible to draw from shell together.For realizing this point, it is typically limited to The magnetic coil of even level.For winding space available in fully utilized shell, selecting line When thickness or linear diameter the most limited.

It is desirable in existing structure space, realize the highest magnetomotive force.At this In the sense that invention, so-called magnetomotive force is construed as taking advantage of of the number of turn of electric current and magnetic coil Long-pending.This is an important amount, the effective power of its explanation device.For realizing high magnetic flux Gesture, it is necessary to the biggest electric current on the one hand can be made to guide by winding wire, on the other hand The number of turn should be the biggest.Generally, when passing through in the case of constant for even level and line footpath When two additional layers improve magnetomotive force, the external diameter of magnetic coil adds the diameter of winding wire Twice.In order to middle step (Zwischenschritte) can also be realized, it is desirable to, The number of plies of odd number can also be realized.

Summary of the invention

The electric device of the feature with claim 1 has the advantage, that it can be with letter The methods of list and low cost realize the winding layers of odd number.For this according to present invention provide that, Arranging the sleeve pipe accommodating magnetic coil in the enclosure, wherein this sleeve pipe has longitudinal seam, passes through This longitudinal seam guides a line end.That is by this longitudinal seam in sleeve pipe for leading back to Line end provide a path by shell, can be cancelled by this path and there is wire turn The return of winding guides.Longitudinal seam provides guidance part for the line end led back to, and it preferably forces The line end led back to is positioned at the position of regulation, and this position is favourable for the magnetic flux of magnetic coil. With the solution that the inner side at shell arranges an equivalence being guided the groove passed through by the line end led back to Certainly scheme is compared, and the solution of the present invention provides the advantage that manufacture and the dress of sleeve pipe Join and can realize with the lowest cost.

One according to the present invention is advantageously improved scheme regulation, and magnetic coil has odd number Layer.By providing the layer of odd number, line end is positioned at the relative side of magnetic coil.By having This sleeve pipe of profit, a line end passes the longitudinal seam of sleeve pipe to the side at another line end place Guide.Longitudinal seam advantageously extends axially through sleeve pipe.The most particularly preferred described line end Extend axially through described longitudinal seam to guide.

Particularly preferred described set is effective can be with the material manufacture of electromagnetic mode excitation.Thus should Sleeve pipe simultaneously constitutes the magnetic loop of electric device and performs other function on this point.

Sleeve pipe the most substantially radially leans against on shell in outside.Specify especially, Sleeve pipe leans against the inner side of shell at medial plane and thus supports shell.Electric device Monolithic case is constituted together with sleeve pipe from there through shell.This shell self is preferably with sleeve pipe Width or thickness more narrowly construct than traditional shell, enabling not loss structure space Accommodate sleeve pipe in the enclosure.The material removed of shell is replaced so that whole by sleeve pipe self Body case obtains the mechanical property almost identical with conventional electrical device and magnetic characteristic.In addition lead to Cross abutting contact, it is ensured that the sleeve pipe good locking on shell and optimizing also includes especially The characteristic of the magnetic circuit of shell self.

Shell preferably has the enclosure wall of closing.Thus shell is particularly stable.Additionally, at that time Sleeve pipe constitutes a kind of groove by longitudinal seam in the inner side of monolithic case together with shell, by this Groove has the free line end led back to of the magnetic coil of odd-level and is led back to.Shell is certainly Body constructs preferably as deep-draw part, therefore, it is possible to be achieved at low cost.

Accompanying drawing explanation

The present invention is described in detail below according to an embodiment.For this:

Fig. 1 longitudinal section shows an electric device,

Fig. 2 cross-sectional view shows this electric device.

Detailed description of the invention

Fig. 1 and 2 shows electric device 1, and it is configured to the driving means of motor vehicles Cranking-motor relay.To this end, the longitudinal section that Fig. 1 simplifies shows electric device 1, and The cross-sectional view that Fig. 2 simplifies shows electric device 1, the most not shown armature 4 and guiding sleeve 5.Illustrate only magnetic coil 3, or rather magnetic in fig. 2 The outermost layer of coil 3 winding and line end 10.

Electric device 1 has substantially cylindrical shell 2, and this shell is used for accommodating magnetic line Circle 3 and armature 4.Armature 4 is arranged in shell 2 in the way of being axially movable, and Its most not shown free powder end is such as connected with operating element.Here armature 4 exists Being bearing in the present embodiment in guiding sleeve 5, this guiding sleeve 5 is axially guiding by shell 2. Shell 2 is closed by cap member 6 on one face, and this cap member is also used for locking and holds Receive guiding sleeve 5.

Guiding sleeve 5 radially leans against being tapered of shell 2 with the end of away from cover element 6 The inner side of section.In region between this tapered section and cap member 6, magnetic Property coil 3 is arranged between shell 2 and guiding sleeve 5.Magnetic coil 3 has winding wire 7, This winding wire is wound into multiple layer relative to armature 4 co-axially around carrier element with multiple circles. Here specifying, the number of plies of magnetic coil 3 is odd number.This causes, and the first line end 9 is as drawing Enter line (Zuleitung) by cap member 6 introduce from shell 2 and in shell 2 immediately Be changed into wire turn, and the second line end 10 as lead-out wire (Ableitung) at magnetic coil 3 The side relative with cap member 6 draw and axially guide from last wire turn and pass through Shell 2 and do not continue winding so that it again by lid 6 from shell 2 draw.Thus Two line ends 9 and 10 are arranged on the same axial side of magnetic coil 3 or electric device 1, Make it possible to make electrical contact with electric device 1 in a straightforward manner.

For making line end 10 can be directed through shell 2 as described, it is provided with sleeve pipe 11, this sleeve pipe 11 have longitudinal seam 12, and this longitudinal seam extends axially through sleeve pipe 11.For this Fig. 2 at horizontal stroke Sectional view shows the cross section of sleeve pipe 11.By this longitudinal seam 12, this sleeve pipe has not The enclosure wall closed.The external diameter of sleeve pipe 11 is chosen to it and substantially corresponds in this case The internal diameter of shell 2 so that sleeve pipe 11 radially leans against on shell 2.Thus, by this longitudinally Seam 12 guides at longitudinal seam 12 and Qi Nei and constitutes one between the inner side of the shell 2 having line end 10 Plant groove.The thickness of sleeve pipe 11 preferably corresponds to the diameter of winding wire 7 in this case.Especially Its longitudinal seam 12 is configured to the narrowest in the way of guiding line end 10 the most well.Such as It is contemplated that stitch wide 12 corresponding to the diameter configuration of winding wire 7.

Assembling time magnetic coil 3 can with sleeve pipe 11 together as pre-arrangement vertically by Push in shell 2.Alternatively it is contemplated that first sleeve pipe 11 is pushed shell In 2, the most axially importing magnetic coil 3, wherein line end 10 just has been positioned at when importing In longitudinal seam 12.

So constitute electric device 1 have the advantage, that can optimally utilize existing Structure space.Particularly can thus obtain a magnetomotive force the biggest: electric current and circle The product (unit: ampere circle) of number.Which thereby enhance the effective power of relay switch.

The typically line radial sector of regulation winding wire is 0.1mm.It is being limited to the feelings of even level Under condition, when the number of plies is 10 and line footpath is d=1mm, keeping if improving magnetomotive force Being changed to 12 layers while even level, this such as represents the step of 2mm for radius.

By the favourable design of electric device 1, now it also is able to realize the number of plies of odd number, Wherein lead-in and lead-out wire, that is line end 9 and 10, continue in the same side of device 1 from Shell 2 is drawn.So, magnetomotive force can be the biggest or somewhat smaller at winding current Time and structure space keep constant in the case of such as increase by 10%.The internal diameter of shell 2 increases The big amount amount that preferably sleeve pipe 11 occupies so that sleeve pipe 11 replaces this part of shell 2. Therefore sleeve pipe 11 monolithic case of constituent apparatus 1 together with shell 2, it has with traditional The characteristic that shell is identical.It also is able to implemented as described below especially: sleeve pipe 11 and shell 2 use phase Same material manufacture.Sleeve pipe 11 is preferably with can making with the material manufacture of electromagnetic mode excitation Obtain it and simultaneously constitute the magnetic loop of magnetic coil 3.

Therefore total shell two pieces type ground structure, wherein the shell 2 of outside is preferably configured as low one-tenth This deep-draw part.By the longitudinal seam of the sleeve pipe 11 in putting into shell 2, winding line end 10 The side of cap member 6 can be led back at low cost in the case of odd-level.By favorably The line footpath of the use standard that is designed to, these line footpaths are generally only capable of carrying with discrete rank value Confession, although wherein improve magnetomotive force by the number of plies is increased to odd number, but manufacturing cost Remain in that the lowest.

Claims (8)

1. electric device (1), this electric device has at least substantially for columnar shell (2) in this shell, the armature (4) that can move axially, it is provided with and for mobile described The magnetic coil (3) being energized of armature (4), wherein said magnetic coil (3) has At least one winding wire (7), this winding wire is wound into many relative to armature (3) coaxially The layer of individual radial direction, and described magnetic coil has the first line end (9) and the second line freely End (10), described line end is arranged on an axial side of described magnetic coil (3) together, It is characterized in that, described shell (2) arranges the set accommodating described magnetic coil (3) Pipe (11), wherein said sleeve pipe (11) has longitudinal seam (12), by this longitudinal seam Guide described second line end (10).

Electric device the most according to claim 1, it is characterised in that odd number is set Layer.

3. according to the electric device one of the claims Suo Shu, it is characterised in that described Longitudinal seam (12) extends axially through described sleeve pipe (11).

Electric device the most according to claim 1 and 2, it is characterised in that described Two wire terminal (10) at least substantially axially guides by described longitudinal seam (12).

Electric device the most according to claim 1 and 2, it is characterised in that described set Pipe (11) the material manufacture that can encourage with electromagnetic mode.

Electric device the most according to claim 1 and 2, it is characterised in that described set Pipe (11) the most radially leans against on described shell (2) in outside.

Electric device the most according to claim 1 and 2, it is characterised in that outside described Shell (2) has the enclosure wall of closing.

Electric device the most according to claim 1 and 2, it is characterised in that described electricity Device of air (1) is the relay switch for motor vehicles.