CN107993801A - The radiator structure of electric device - Google Patents

Abstract

The present invention relates to a kind of radiator structure of electric device (1), particularly it is used for the relay switch of motor vehicle, it is at least substantially columnar shell (2) that the radiator structure of the electric device, which has, the armature (4) being axially movable and the magnetic coil (3) being powered for moving armature (4) are provided with the shell, wherein described magnetic coil (3) has winding wire (7), the winding wire is coaxially wound into the layer of multiple radial directions relative to armature (3), and the winding wire has two free line ends (9, 10), the line end is arranged on an axial side of magnetic coil (3) together.Present invention provide that setting the casing (11) for accommodating magnetic coil (3) in shell (2), its middle sleeve (11) has longitudinal seam (12), and a line end (10) is guided by the longitudinal seam.

Description

The radiator structure of electric device

Technical field

The present invention relates to a kind of radiator structure of electric device, the particularly relay switch for motor vehicle, this is electric It is at least substantially cylindrical shell that the radiator structure of device, which has, and the armature being axially movable and use are set in the shell In the magnetic coil being powered of mobile armature, wherein the magnetic coil has winding wire and two free line ends, this around Group line is arranged on the axial side of magnetic coil together to being coaxially wound into the layers of multiple radial directions, the line end relative to armature.

Background technology

The radiator structure of the electric device for the type mentioned during beginning is for example known from DE 29611004U1.Here hold in the mouth Iron is axially movably supported in the shell of cylinder or cupulate, is coaxially disposed in the shell also relative to the armature There is the magnetic coil that can be powered.The magnetic coil is simply axially pushed into shell in assembling.Magnetic coil usually has There is at least one winding wire, the winding wire is wound and to this with the defined number of turn in the layer of multiple radial directions.For this Kind device is desirable that the free line end of winding wire is drawn in the side of shell from shell.It is therefore advantageous that these line ends An axial end portion of magnetic coil is arranged on together, so as to thus, it is possible to be drawn together from shell.To realize this point, lead to Often it is limited to the magnetic coil of even level.It is straight in selection line thickness or line for available winding space in full utilization shell Also it is limited during footpath.

It is desirable that magnetomotive force as high as possible is realized in existing structure space.It is so-called in the sense of the present invention Magnetomotive force is construed as the product of the number of turn of electric current and magnetic coil.This is an important amount, it illustrates the effective of device Power.To realize high magnetomotive force, it is necessary to electric current as big as possible can on the one hand guided and passes through winding wire, another aspect circle Number should be as big as possible.In general, when for even level and line footpath it is constant in the case of pass through two additional layers and improve magnetomotive forces When, the outside diameter of magnetic coil adds twice of the diameter of winding wire.In order to realize middle step (Zwischenschritte), it is desirable to, additionally it is possible to realize the number of plies of odd number.

The content of the invention

The radiator structure of the electric device of feature with claim 1 this have the advantage that：It can be with simple and low The methods of cost realize the winding layers of odd number.Provide according to the present invention for this, set accommodate magnetic coil inside the shell Casing, the wherein casing have longitudinal seam, and a line end is guided by the longitudinal seam.That is the longitudinal direction in casing is passed through Stitch and provide a path by shell for the line end led back to, the return of the winding with wire turn can be cancelled by the path Guiding.Longitudinal seam provides guidance part for the line end led back to, it preferably forces the line end led back to be located at defined position, the position The magnetic flux put for magnetic coil is favourable.With the inner side of shell set one by lead back to line end guiding pass through groove etc. The solution of effect is compared, and solution of the invention provides the advantage that：The manufacture and assembling of casing can be with significantly low Cost realize.

One kind according to the present invention is advantageously improved scheme regulation, and magnetic coil has the layer of odd number.By providing odd number Layer, line end is located at the opposite side of magnetic coil.By the favourable casing, a line end through casing longitudinal seam to Side guiding where another line end.Longitudinal seam advantageously extends axially through casing.Here the particularly preferred line end Extend axially through the longitudinal seam guiding.

The particularly preferred described sleeve pipe material manufacture that can be encouraged with electromagnetic mode.Thus the casing is formed electric at the same time The magnetic loop of the radiator structure of device and other function is performed on this point.

Casing is on the outside preferably at least substantially radially by the shell.Especially provide, casing plane earth on the outside Lean against the inner side of shell and thus support housing.The monolithic case of the radiator structure of electric device is from there through shell and casing Form together.The shell itself is preferably more narrowly constructed with the traditional shell of the width of casing or thickness ratio, enabling no Loss structure space containment sheath inside the shell.The material removed of shell is replaced by casing itself so that monolithic case obtains To the mechanical property and magnetic characteristic almost identical with the radiator structure of conventional electrical device.In addition by abutting contact, set is ensured The good characteristic locked and optimize the magnetic circuit for especially also including shell itself of pipe on the shell.

Shell preferably has the enclosure wall of closing.Thus shell is particularly stable.In addition, casing passes through together with shell at that time Longitudinal seam forms a kind of groove in the inner side of monolithic case, has the free line led back to of the magnetic coil of odd-level by the groove End is led back to.Shell itself is constructed preferably as deep-draw part, therefore can be achieved at low cost.

Brief description of the drawings

Below according to one embodiment, the present invention will be described in detail.For this：

Fig. 1 shows the radiator structure of an electric device with longitudinal section,

Fig. 2 shows the radiator structure of the electric device with cross-sectional view.

Embodiment

Fig. 1 and 2 shows the radiator structure 1 of electric device, it is configured to the starter of the driving device of motor vehicle Relay.For this reason, Fig. 1 shows the radiator structure 1 of electric device with simplified longitudinal section, and the cross section of Fig. 2 simplification The radiator structure 1 of electric device is shown, wherein armature 4 and guiding sleeve 5 are not shown in fig. 2.Only show in fig. 2 The outermost layer and line end 10 of magnetic coil 3, more specifically 3 winding of magnetic coil.

The radiator structure 1 of electric device has substantially cylindrical shell 2, which is used to accommodate 3 He of magnetic coil Armature 4.Armature 4 is set in shell 2 in a manner of being axially movable, and in its free powder end example (not shown) here Such as it is connected with operating element.Here armature 4 is supported in guiding sleeve 5 in the present embodiment, and the guiding sleeve 5 is axially guiding logical Cross shell 2.Shell 2 is closed by cap member 6 on one face, which is also used for locking and accommodates guiding sleeve 5.

Guiding sleeve 5 with away from the end of cap member 6 radially lean against shell 2 the section being tapered inner side.At this In region between the section and cap member 6 that are tapered, magnetic coil 3 is arranged between shell 2 and guiding sleeve 5.It is magnetic Coil 3 has winding wire 7, which is wound into multiple layers relative to armature 4 with multiple circles co-axially around carrier element.This In provide, the number of plies of magnetic coil 3 is odd number.This causes, and the first line end 9 passes through cap member 6 as lead-in (Zuleitung) Introduced from shell 2 and wire turn is immediately transferred in shell 2, and the second line end 10 is used as lead-out wire (Ableitung) in magnetic Property coil 3 the side opposite with cap member 6 drawn from last wire turn and axially guide by shell 2 without continue Winding so that it draws again by lid 6 from shell 2.Thus two line ends 9 and 10 are arranged on magnetic coil 3 or electric The same axial side of the radiator structure 1 of device, enabling make electrical contact with the radiator structure 1 of electric device in a straightforward manner.

To make line end 10 to be directed through shell 2 as described, equipped with casing 11, which has longitudinal seam 12, should Longitudinal seam extends axially through casing 11.Fig. 2 shows the cross section of casing 11 in cross for this.Pass through the longitudinal direction Seam 12, the casing have the enclosure wall do not closed.In this case the outside diameter of casing 11 be chosen to it substantially correspond to it is outer The internal diameter of shell 2 so that 11 radial direction of casing is leaned against on shell 2.Thus, have by the longitudinal seam 12 in longitudinal seam 12 and Qi Nei guidings A kind of groove is formed between the inner side of the shell 2 of line end 10.The thickness of casing 11 preferably corresponds to winding wire 7 in this case Diameter.Especially longitudinal seam 12 is configured to very narrow in a manner of guiding line end 10 well vertically.Such as it is contemplated that slit width 12 Corresponding to the diameter configuration of winding wire 7.

In assembling, magnetic coil 3 can be pushed into shell 2 vertically with casing 11 together as pre- arrangement.As The scheme of replacement it is contemplated that be pushed into casing 11 in shell 2 first, and then axial to import magnetic coil 3, wherein line end 10 exists Just had been positioned in longitudinal seam 12 during importing.

The radiator structure 1 of the electric device so formed this have the advantage that：Can be optimally empty using existing structure Between.It particularly can thus obtain a magnetomotive force as big as possible：Product (the unit of electric current and the number of turn：Ampere circle).Thus Improve the effective power of relay switch.

The line footpath of typically regulation winding wire is classified as 0.1mm.It is 10 Hes in the number of plies in the case where being limited to even level When line footpath is d=1mm, 12 layers are changed to while even level is kept if magnetomotive force is improved, this for example comes for radius Say the step for representing 2mm.

By the favourable design of the radiator structure 1 of electric device, the number of plies of odd number can be also realized now, wherein introducing Line and lead-out wire, that is, line end 9 and 10, continue to draw from shell 2 in the same side of device 1.In this way, magnetomotive force can around Increase when group electric current is equally big or somewhat smaller and for example 10% in the case where structure space remains unchanged.Shell 2 it is interior The amount of footpath increase is preferably the amount that casing 11 occupies so that casing 11 replaces the part of shell 2.Therefore casing 11 and shell 2 The monolithic case of constituent apparatus 1 together, it has the characteristic identical with traditional shell.Especially it can also be implemented as described below： Casing 11 and the identical material manufacture of shell 2.Casing 11 is preferably with the material manufacture that can be encouraged with electromagnetic mode so that it The magnetic loop of magnetic coil 3 is formed at the same time.

Therefore construct, wherein the shell 2 of outside is preferably configured as the deep-draw part of low cost total shell two pieces type.By The longitudinal seam for the casing 11 being put into shell 2, winding line end 10 can lead back to Gai Yuan at low cost in the case of odd-level The side of part 6.The line footpath of standard can be used by favourable design, these line footpaths are usually only capable of carrying with discrete rank value For although wherein improving magnetomotive force by the way that the number of plies is increased to odd number, manufacture cost still maintains very low.

Claims (7)

1. the radiator structure (1) of electric device, the particularly relay switch for motor vehicle, the radiator structure of the electric device With being at least substantially columnar shell (2), the armature (4) that can move axially is provided with the shell and for moving The magnetic coil (3) being powered of the armature (4), wherein the magnetic coil (3) has at least one winding wire (7), should Winding wire is coaxially wound into the layer of multiple radial directions relative to armature (3), and the magnetic coil has two free lines Hold (9,10), the line end is arranged on an axial side of the magnetic coil (3) together, it is characterised in that in the shell (2) casing (11) for accommodating the magnetic coil (3) is set in, and wherein described sleeve pipe (11) has longitudinal seam (12), by this Longitudinal seam guides a line end (10).

2. the radiator structure of electric device according to claim 1, it is characterised in that the layer of odd number is set.

3. the radiator structure of the electric device according to one of the claims, it is characterised in that the longitudinal seam (12) Extend axially through described sleeve pipe (11).

4. the radiator structure of the electric device according to one of the claims, it is characterised in that the line end (10) is extremely Few substantially axially guiding passes through the longitudinal seam (12).

5. the radiator structure of the electric device according to one of the claims, it is characterised in that described sleeve pipe (11) is used The material manufacture that can be encouraged with electromagnetic mode.

6. the radiator structure of the electric device according to one of the claims, it is characterised in that described sleeve pipe (11) exists Outside is at least substantially radially leaned against on the shell (2).

7. the radiator structure of the electric device according to one of the claims, it is characterised in that the shell (2) has The enclosure wall of closing.