DE2001600A1 - Control device - Google Patents

Description

200160Q

DlPL-ING. HORST ROSE DIPL-ING. PETER KOSEL PATENT LAWYERS

3353 Bad Gandersheim, January 13th 1 Hqhehhöfen 5 Telephone: (05382) 2842 Telegram address: Siedpatent Gandersheim

Our file number: 2644 / i

Martin Bekedam-

Patent application dated January 13, 1970

Martin Bakedam

106 Zandar Drive

0 r i η d a / California

v.st "A. . ■ ... -; ■

Control device. _ _:. -, - ■ -.-.

The invention relates to a control device, '' in particular a contactless end position holder he ^ mi "fe one in the direction of its longitudinal axis movable part, on the at least one disk-shaped magnet is attached, which. on one side a north side and on the other side has a south pole and a rotatably arranged Magnet cooperates, on one side a magnetic one Polarity unä on the other hand, which has the opposite magnetic polarity and with one. Location-* change uea disk-shaped magnet on his part Iiage discontinuous within a space formed by stops changes. ',.

From US Pat. No. 3,167,694 there is one such Known control device, which is designed here as a float switch and when the water rises or falls

if there was a mercury switch in each boiler brings one of its two switch positions. In one of the two exemplary embodiments of this known control device an additional magnet is also provided to ensure abrupt switching behavior and thus secure contact would be achievable.

In the case of the control device according to this US Pat. No. 3,167,694, it is connected to a float body Rod an actuating magnet arranged, which cooperates with a magnet attached to a rotatable actuating member, which is magnetically oriented in the same way as the actuating magnet. If the actuating magnet moves relative to the other magnets, a magnetic force is exerted on the latter, which rotates the actuator and thereby the Turns the mercury switch on or off.

This known control device works very satisfactorily and allows a contactless operation in a safe manner Making contact, e.g. to switch on a boiler feed pump. However, it has the disadvantage that the switching hysteresis is relative is small and practical due to the geometry of the two magnets, so that the switching points for switching on and off lie close together. In the case of a boiler feed pump, this means, for example, that it is switched on and off very often becomes what is not necessary in itself and what is theirs Service life reduced accordingly.

It is therefore an object of the invention to avoid disadvantages of the known control device and in particular one to create such a control device that reliably causes a sudden switching behavior and preferably one gives certain constructive freedom in the dimensioning of the switching hysteresis.

According to the invention, this is the case with one mentioned at the beginning Control device achieved in that on the movable part in the direction of its longitudinal axis at a distance from one another at least two disc-shaped magnets are arranged, and that this part can be moved within predetermined limits,

109830/0987

200160Q

so that the rotatable magnet is always located between the disk-shaped magnets and this in one end position Partly cooperates with the one and in the other end position of this part with the other disk-shaped magnet. By the dimensioning of the distances between the two disc-shaped Magnets can be used to determine the position of the in Direction of its longitudinal axis movable part of the rotatably arranged Magnet is operated in each case.

In an advantageous development of the invention, it is DA "in so ago, that the magnetic poles of the rotating magnets are oriented in the same direction as those of the disk-shaped magnets, and in that two stops of magnetizable * of the rotary magnets are provided% material for limiting the rotational movement, one of which is in one of the two end positions of the rotatable magnet in its magnetic circuit. This results in a simple, abrupt switching behavior, since the rotatable magnet is held against the respective magnetizable stop against which it is held by a certain holding force just rests, and only after overcoming this holding force suddenly flips into its other position in which it rests against the other magnetizable stop.

Another advantageous embodiment of the invention is characterized in that on the in the direction of its ^ j A disk-shaped sensing magnet is arranged between the two disk-shaped magnets, which can be displaced in the longitudinal axis whose magnetic poles are opposite to those of the two * (magnetically oriented in the same direction) disk-shaped magnets are oriented that the rotatable, arranged.-Magnet the has the same magnetic orientation as the sensing magnet, and that the stops are made of non-magnetizable material are. This is where the sudden switchover occurs causes the disk-shaped sensing magnet to be rotatable arranged llagnet is moved past. · '■

ij'ie triad of the ar eh bar eye ranks en liagne ten can. e.g. for operating a mercury holder or a KiiKxo -... diallers are used .. -. ·

109 830/0987

... ■ ORIGINAL BATHROOM

20-1600

Further details and advantageous developments of the invention emerge from those described below and embodiments shown in the drawing as well as from the claims.

Show it:

1 shows a longitudinal section through a control device according to the invention,

Pig. 2 is a section, seen along the line 2-2 of FIG. 1,

Fig. 3 to 5 schematic representations (not without this magnetic tube F), the semicircular magnet to the right of the vertically movable rod G- is shown and not surrounding them, as in FIGS. 1 and 2, in order in this way to make the purpose and function of the various, individual ones clearer To be able to represent magnets surrounding magnetic fields, and

6 and 7 are schematic representations of a modified embodiment of the invention.

Fig. 1 shows an example use of the invention Control device. A tank labeled A contains water or some other liquid, to him is a Associated with container B to indicate the liquid level in the tank »An upper connecting pipe 1 extends between the tank A and the container B, and a lower connecting pipe 2 extends from the bottom of the container B to Bottom of the tank A. The top of the container B is connected to a support member C.

The device according to the invention is arranged in a housing D (FIG. 1). This has a bottom wall 3 with a Central opening for receiving the upper part of a connecting link E, which is stranded at its lower end with an external thread E1, which in a corresponding G-ewimlebohrung 4 of the tra / y link 0 einohrnubl, its (■. At the upper end the link E is also provided with an external thread E2; on this one Unti'rlc ^. 'ünheibe Jj uujy; i: h: i \ n: ht, the {' .ίγ; οη naa

Middle part #
Wi§ »te © tasi f'I @ g @ Äii§ @ § S. is on the» ■ ifelieibe "5 & a £,

mti- §ίη§ ffett @ a? 7 is on da§ @ 1? <§2? © i «fat thread. 12 on «tiffi the imt @ 3? §

looks isapi- @ ti§ © fa © g Se & s? f is sfegedielitet in de » mmmg dee ifeEfeinäuägsssss. B-feefestigt _f -'vgl * fig * I * fii @ §gg! © to Mt §is- geeebl-essefies efee & e &'Snde S, d§ffl sisfe eitir & ewiadeaapfe »aaefe-efeeia esstseeKt * Biae ■ Haiifce shows @ ift§ Mittgiäfffittöf from? Suseelifiüisuag- this- cone aufn Bins mothers tö i§-t. mxt the bowl aufgeseiEattfet _# -.u »" die äfeaefeöliää ?. au fc§f§§tii @ a «öas undea? e lade, de * hood meets ubm äinm sash öfeeö-'gefe ^ ägtea- Ringflanse ^ de» imtea? ett

Iffl üiefet aa ^ etis'eöffi MeA ^ f is veBseMefeüaff -a rod

öfeg ^ g »toä§ §ift aelisifeenf ÖKäigeff Halteiit | äg3? f how. is fig * 1 shown in iiii§ ^ äu.iߧ3affliffig äag R & l ^ ea I vessöliiefefeaE is ». Si © ge «

^{f |} I ^{w as} interpreted üt, iaid the entire is- ei »Stidf © Ι uad- dtaseto dea lueastaben ¹¹ S" be ■ Elias / aiefet. Fflagaetiseae Sistaaeaülse 11 .is as & mf ds ^ ötäiig. © §. Fastened ,, uad ilex upper Baoeiieg-t g @ gSÄ öie üate3? S8i.ts-des se3seibeaf8a? Ffligsa Magnets I an üatei? §3? I ~ @ eRSii ^ & f & £ ffiige £ ~ Kalteffiagaet 'J is on dar & lifistigt uaä lies' against the Uata: a? eeite da »äia§ ■ ws £ tga? 8 j3iitaiiiiül-§§ 11 igt auf äe» - .. gtange uad li§gt göge &'äie.'uate ^ page aas. ööliaib I aa _v ' üJii§ vqr eia§ £ f§ä§a? 14 aagepsassta is fe ^ ö6M§i) bag on 4§f itaagi & .aagees ^ at uM äüseoh die

a the un-1i§Kelade d @ as KUlea 1 ti ist-ve »B-eai.abtreuf. on d§ »§iaia Sp» iaga? ia'i 16 geaalt9tt _f iä-de ».. Ausaalnaauag / das? θϊ» S ä & eb & s b & festigt igt * M§ -apisaifadör 14 ia a & ötigiefeigQ-i Wii§§ äie Maga§t§ I and others; d. J uad .die. 11 uaö'ti- g © wi§ die Sehsibe- 1.3 iä-das? - geviüÄBelitea An Sis- liäagea d§ £ Htilöea 11 uM ig - can »-

/ U016QQ

can be varied to turn the window magnets into a desired one - Keep your distance from each other. Me rod glides in one Central opening in the lower disc 15.

The lower end of the rod G- is, as shown in FIG. 1, connected to one or more liquid displacers K. The displacer can be adjustably G-mounted on the rod. In the illustrated embodiment, it is arranged in the ß-ehäuse B, in which the liquid level 17 corresponds to that in the tank A. However, it is also possible to fasten the support member C directly on the tank and to have the rod G and the liquid displacer K protrude directly into the liquid in the tank. In this way, the container B could be saved. The rod G- can also be displaced in the direction of its longitudinal axis in a way other than that shown in FIG. If the displacer K is used instead of a float body, the spiral spring 14 compensates for the weight of the displacer and the twisting of the rod G.

A rotatable support member L carries a mercury holder M and a semicircular magnet P, see Fig. * 1 and 2. A platform Q is on a G-threaded rod 18 arranged adjustable, and held by nuts 19 ^ The platform Q is made of non-magnetic material and * has an opening 20 through which the non-magnetic tube F extends. The platform Q and the support member L are arranged in housing D. A U-shaped pivot bearing 21 is mounted on the platform Q, and the support member L is at 22 rotatably attached to the pivot bearing 21. The support member L is also U-shaped and its arms support in place 23 (see. Fig. 2) the ends of the semicircular magnet P. The latter essentially surrounds one half of the cylindri-Bohen Tube F and is arranged near the outside of the same. Fig. 1 shows the magnet P between two disk-shaped Holding magnets H and J. A stop screw R from Elsen is adjustable on the non-magnetic platform Q attached, and the magnet P rests against this screw R when it is in one of its two end positions.

109830/0987

As soon as-äW: Magnet P is in contact with the iron screw R, this becomes magnet! it rt ;; and. arises ... a magnetic, attraction between the "two", which becomes ^ MmjtztvW ",; the naph ^ Qben-.,., _: oscillation of the magnet P during the initial upward movement of the rod G- to delay, as will be explained in the following. ......, '..'".- ~ -""'■

A; not more magnetic; BügelX 24 is ,, on _{v of} the ^ platform Q_. attached,: .. verga * fig-, 1. and _: 2, and carries -a ,, once el lable upper :; Iron screw T .; The fh ^ lbkreisshaped. Magnet P lies down - when he is together with. _; - _;: the. , T-rag'e _; member Ii.nac] a_ swivels above, against this, upper stop very rough .-! E and. magnetizes them. _ .. This creates a; magic attraction between. the magnet P _: and the _; Announcement! B ,,, which _? , to J used; is the movement of the magnet, P _t by _v to yerzögern below, when the rod & downwardly move to ".. begins .. This is also in the following, be .beschrieben detail. That. Trageglie4.Ii.:kajan in relation to: his ^ sjshwenkbewegung. around. the. Axis of rotation 22 balanced by a counterweight, the _; is arranged opposite the magnet P. Are connected to a terminal block Ü (not dargesbellte) '' wires that lead zum'Quecicsiiberschalter M attached. In the '''lower wall 3 ^J wages one or more er'e-openings are provided through which other wires, not shown, "Run" through the terminal strip "TJ" and used in a suitable manner. Jtötineni ^: j

The very 1 level door direction works as follows :

'Die-3Tig:'. "- / 5>4;and" 5 ^; show sehamatis _; eh this mode of action. Das ^: iiiclit ifiagnetisöhe Rohr., I ¹ ..: is t · -not- darge s divides omd _; the · _r lialbltre-is-shaped. ^: Magnet-fP ⁱ is on *; the! Right-hand side,., The -bar & ■ shifted. -.wor ^: den., 'so';;;that;Aie; imägnetiseh ^ n- _a ]? Elder _; around. the _; various magnets; clearer-: can be represented- _o; The iron \ Anschlag.sch ^ auiben.Ri-UiidiiE ^ are ^ level .on the ^,

right side shown; .- _: ¥ enn der, magnet; _: Pv swivels from one end position to the other, -; lays; ^^ er,: siGh alternately, against one of these attacks or rather ouben * ·, .. '■. _; ·: .-. ·, ---.--,. "-.-- .- ,.

. In Pigo 3 it is assumed that the ', nBlbIcreisformigeVdreh-. bar arranged magnet 'P against' the outer iron stop screw R, and - that ^: the ^ rod: S- in ^ vertical direction

109 8 3Q / pass 7 ...

BATH

by the rising PlusBigkeif 17 in container B or by another device is moved. The tops of magnets H, J and P are designed as north poles, while the Undersides of these magnets are designed as south poles. Of the . Magnet P magnetizes the iron stop R because it is with it is in contact. The holding magnet J has a magnetic peId surrounding it, as indicated by the lines J '. The magnet P also has a face P 'that surrounds it.

When the rod G- moves the magnet J upwards, the two pads J ¹ and P · are pushed against each other and have a tendency to pivot the magnet P clockwise and the stop R the pivoting of the magnet. This delay in the pivoting of the magnet P results in a certain dead play with respect to the rod G, ie this rod goes up without the magnet J first giving the magnet P a clockwise movement. Gradually, however, the compression of the two pads in the increasingly narrowing gap between the magnets J and P creates a sufficient force on the magnet P to overcome the magnetic attraction between it and the stop R. The magnet P now suddenly moves in a clockwise direction

^ in Pig. 4 position shown in which he against the

^w upper stop T is applied. The repulsive force between the

. Magnet P and the lower disk-shaped magnet J limit the movement of the rod G upwards. The pivoting of the magnet P clockwise into the position shown in FIG. 4 ends the downward pressure on the rod G, which before this pivoting is caused by the pressing together of the two pads J ¹ and P ^! had been caused, and this enables a faster upward movement of the rod G ^ Samit a support of the sudden ring movement of the magnet P. As soon as the magnet P rests against the upper stop T , a magnetic force of attraction arises between the two. In the reverse, downward movement of the rod G-, this rod must be separated from the in

109830/0987

j 4 into the position shown in Jig. 5 position shown are moved before the field H 'des _; upper disc-shaped magnet - H that; Field P ^{1 of} the pivotable magnet P squeezes. " : ■; '■ - ". ■■ - :.

Here, too, there is again a great deal of play "during the downward movement of the rod G- before the compressed fields H ¹ and P '- exert a sufficient force to create the magnetic attraction between the magnet P. and the stop ü against which it rests, to overcome _o The distance between the two disc-shaped magnets J and H determines the size of the dead play of the rod, which occurs before the swiveling magnet suddenly flips over into its new position * This distance can / be varied magnets P and its support member L may want to 3e ^ ^s · purpose are used tern eg for operating mercury or macros ohal · tern or stale air.

The; The heads of the iron stops R and T can be made larger, which means that there is a greater delay before the pivotable magnet P is released from the stop against which it rests. The; Stop screws R and T are displaced laterally with respect to the swing magnet Pj, by the magnitude of the magnetic force of attraction between this magnet and the stop against which it rests, is varied, and thus also the period of time: at which this magnet is magnetized Stop releases. Any suitable device can be used to move the stops laterally. As can be seen, the pivotable magnet P is bound in each of its two bundles in a magnetic field and requires a spring to pull it into or out of this field. The pivotable magnet is therefore located in a constantly engaged magnetic field.

. Diö: Figs. 6 and 7 show a modification of the. Invention. Here two disc-shaped Haliemagnete are mounted on a vertically movable rod -V, namely an upper magnetic W ₁ '■ xmä j among he magnet% "Further, Is * au £ of the rod on / zenrferaler / gchelbenförmiger fegnet / Y; _f fastened. namely in the

2U01600

- ίο -

Middle between the "two holding magnets. A rotatably hinged, semicircular magnet Z is shown at a distance on the right-hand side of the rod V, but would in reality be arranged on a rotatable support member and enclose the rod V in the same way as over the semicircular Magnet P encloses the rod G and, as shown in Figures 1 and 2, is mounted on the support member 11. In Figures 6 and 7, the semicircular magnet Z is shown to the right of the rod Y , around the various fields surrounding the magnets Here, too, the non-magnetic tube F can enclose the three disk-shaped magnets W, X and Y, and the semicircular magnet Z can in turn enclose this tube An upper non-magnetic stop 51 limits the pivoting movement of the magnet in the opposite direction e stops are made of non-magnetic material. The magnet Y is called a sensing magnet.

The upper and lower disc-shaped holding magnets W and X have their respective south poles "S" on their upper side and their north poles "N" on their lower side. The middle disc-shaped magnet has its north pole "N" on its top and its south pole "S" on its bottom, while the semicircular pivoting magnet Z also has its north pole "N" on its top and its south pole "S" on its bottom. All four magnets W, X, Y and Z have the surrounding magnetic fields W ', X ¹ , Y' and Z 'as shown in Figs.

It is initially assumed that the various parts are in the position shown in FIG. 6 and that the rod V is moved upwards in a suitable manner, for example by the displacement body K of FIG. 1, because the liquid level 17 rises. The rotatably arranged magnet Z is shown in contact with the upper non-magnetic stop 51. The lower holding magnet W has part of its field W ¹ connected to part of the field Z 'of the rotatable

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200160Q

arranged magnet Z ... At the same time, a repulsive force is built up: between part of the field Y ^{1 of the} middle disk-shaped magnet Y and a cell of the field Z ^{1 of} the rotatably arranged magnet Zt. Therefore, the force of attraction between the upper holding magnet W and the rotatably arranged magnet Z as well as the repulsive force between the middle disk-shaped magnet Y and the rotatably arranged magnet Z, the latter in contact with the upper stop 51, as is ^{clearly shown in 11g *:} .-6 "

When the rod Y moves past the center magnet Y upwardly at the rotatably arranged magnet Z, penetrates a Teil.des suffering Y ^{1 is} a part of the field Z 'of sc ~% rotatably arranged magnet Z. Ba in the actual execution of the semicircular magnet Z surrounds the rod Y, practically the entire field Z ^{1 of} this magnet Z generates a repulsive force with at least one half of the field Y 'of the center magnet Y * The center magnet Y is moved through the field Z' of the rotatably arranged magnet Z when the Rod Y moves the middle magnet Y upwards. Here, the rotatably arranged magnet Z moves in the counterclockwise direction abruptly to the position shown in FIG 7 ₀ ■ position where it abuts against the non-magnetic abutment 50th

The rotatably arranged magnet Z is in its new - kept ^ position of Figure 7 by the repulsive effect of the two fields Y ¹ and Z 'and by the magnetic attraction force • between the lower holding solenoid X and the rotatably arranged magnet Z.. The reversed sudden switchover takes place when the rod Y moves downwards; this rod can move a certain distance beyond its end position when it moves upwards or downwards, with the holding magnets W and X holding the pivoting magnet Z. hold in the position in which it had just been swiveled »

The modified form of the invention according to FIGS. 6 and uses two holder magnets W and X, which are on the rod V are arranged and move with it. The middle magnet

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200Ί600

Y is used ^{to deform the face Z 1 of} the rotatably hinged magnet Z in order to cause the magnet Z to switch over suddenly. In this form of the device, the rotatably articulated magnet Z is bound in its two end positions in a magnetic field and does not require a spring to pull it into or out of this field. It can therefore be said that the rotatably arranged magnet Z is constantly in engagement with a magnetic field.

Patent attorneys Dipl.-Ing. Horst Rose Dipl.-Ing. Peter Kosel

109830/0987

Claims (1)

DIPL.- ING. HORST ROSE DIPL-lNG. PETER KOSEL PATENT LAWYERS .. · ^.::: ■ _J:. "- ΊΟ ^ 3353 Bad Gandereheim, 1 3 W in January 1970 ■ '--- ■ "■' * ·. \». Hohenhöfetj 5 '.. - \ '.'',-' ■ - ■ '_.'''. . V. ■ "■■■ -" - Telephone: (053822842. "■■"'"""""". . - - Telegram adreeeetSiedpatentGanderehelm i-. Our file number: 2644 / t Mär "fcin Bekedänt ·.; ■ ■:; ■;: - \ - ■ .- _ -; - ' from 13,. ^: » , In particular, less contact He receives BndTS ^ ens, with: a part movable in the direction of its longitudinal axis, on which at least one disk-shaped magnet is arranged, which has a Ford pole on one side and a south pole on the other side and / interacts with a rotatably arranged magnet, which has a magnetic polarity on one side and the opposite magnetic polarity on the other side and, in the event of a change in position of the disc-shaped magnet, its position within a The space formed by stops is discontinuous, characterized in that at least two disk-shaped magnets (H, ^ J; W, X) are arranged at a distance from one another on the part (G-; ¥) which can be moved in the direction of its longitudinal axis, and that this T-part (G; T) is movable within predetermined limits, so that the rotatable magnet (P; -Z) is always between: the disk-shaped; magnets (H, J; W, X) and irt the one End position of this üüells (G-; V) with de One uiid in the other end position of this part interacts with the other shovel-shaped magnet. - """.·" 2 * control device according to claim 1, characterized in that the magnetic poles -both disc-shaped magnets: iB _t ; <f;¥> X) they are oriented towards writing » 1098 WJQ i8 1 3β control device according to claim 2, characterized in that that the magnetic poles of the rotatable magnet (P) are oriented in the same direction as those of the disk-shaped magnets (H, J), and that two stops (T, R) made of magnetizable! Material to limit the Rotary movement of the rotatable magnet (P) are provided, of which one in each of the two end positions of the rotatable magnet (P) is in its magnetic circuit (Fig. 3 to 5). 4ο control device according to claim 1 or 2, characterized characterized that on the in the direction of its longitudinal axis ^ shiftDaren part (V) between the two disk-shaped Magnets (V /, X) a disc-shaped sensing magnet (Y) is arranged whose magnetic poles are opposite to those of the two (magnetically oriented in the same direction) disc-shaped Magnets (W, X) are oriented. 5. Control device according to claim 4, characterized in that that the rotatable magnet (Z) has the same magnetic orientation as the sensing magnet (Y) and that the stops (50, 51) are made of non-magnetizable material, 6. Control device according to one of claims 1 to 5, characterized in that a in a known manner ψ Tube (F) made of non-magnetizable material, which encloses the magnets (H ₁ J; W, X, Y) arranged on the part (G-; V) that is movable in the direction of its longitudinal axis, allowing the magnets to move by means of this part, and that the rotatably arranged magnet (P; Z) is arranged outside this tube (P) » 7. Control device naoh one of claims 1 to 6, characterized in that the rotatably arranged magnet (P; Z) has a curved part, which in the direction its longitudinal axis movable part (G; V) at least partially surrounds, and aass the center of the curved part preferably lies approximately in this longitudinal axis. 109830/0987 2QQ1SQQ .8 »:" - Control device according to claims 6 and 7, characterized in that the curved part "of the rotatably arranged magnet (P; Z) is arranged outside the tube (P) and at least partially surrounds it, and that the inside-of the curved part near the outside of the pipe (Έ ¹ ), is arranged, öo that the field of the rotatably arranged magnet (P; Z) and the fields of the in the direction of-his. Longitudinal axis / "movable part" ■ (Q-; V) arranged; Magnets; (H, J; Λί, Χ, Υ) as they move, interacting with each other _o ν \ 9. Control device according to one of the preceding claims, characterized ^ that the 'in the direction of his Longitudinal axis movable part in a known manner with an actuating member, in particular with a float or displacement body, is connected. 1Ö, control device according to one of the preceding claims, characterized in that the rotatable; arranged magnet (P; Z) formed in the shape of a horseshoe and is attached to a rotatably hinged actuator (L) for an electrical switch, preferably a mercury holder (M) in such a way that it faces away from the axis of rotation (22) of this actuator (L) Side of the part (G-; V) that can be displaced in the direction of its longitudinal axis, a displacement of the magnets (H * J; W, Χ, ΐ) arranged on this ^ ' . Patent attorneys Dipl.-Ing. Horst Rose Dipk-Ing. Peter Kosel 30/0987