DE1719863U - ELECTRIC CIRCUIT BREAKER, IN PARTICULAR FOR INDUCTION MOTORS. - Google Patents

Description

21c, "69. 1719 865. Gebr. Von ^ Alten, ^

V ADI 7! DD.,. _T1 - _kl , Kronberg (Taunus). 1 Ei ^ ubi ^ -i ^ u ^ 5. «rR. w lS.AKLZ.irr PATENT switch, especially for

Bad Vilbel, Frankfurter Straße 174 Postscheck: Frankfurt (Moin ^toren · * "• ^J '

_{inZi! 4} " _: Z./5184GB PAOOOI 7ü — Z1.5B

Use sample registration of Firaa A X / I

Gebr. Von Altan,

Bad Vilbel, December SO, 1955.

»Electrical circuit breaker, especially for

Induction motors »·

Object of the innovation is an electric circuit breaker, in particular for Induktionsiaotoren, old a thermally controlled switching element which ausanden sit a iu its Brwanaung serving heating coil is accommodated in a housing · Such circuit breakers are mainly vorwendet at InduktionsDotoren for household refrigerators, washing machines and the like, a Hauptstroawicklung and have a starting winding to protect the motor from overheating due to inadmissible power consumption

Gene & ss of the innovation of the circuit breaker is designed such that the two ends of the heating coil and the counter contacts for the as Schcltglied attached Sohaltkontakte bit la housing arranged insulated outwardly leading connection contacts for * the Stroazufuhrungsleitungen are provided so that the heating coil independently of the Gegeakontaktezi for the switching element can be switched off. This design of the circuit breaker has the advantage over the previously known implementation fora that the circuit breaker can now also be used to control a contactor as required - command voltage for the EIiH - and switch off

21c '69. 1719 863. Gebr. Von Ah «,. K- ™ W (Taunus). ! Electrifying protective

5, APR. 1956

Motors used * r «r» with the since »usual circuit breaker ^ ^ ar this not necessary, because with these only one end © dor Heisvd.delung ait © inea is provided with connection contact leading to the outside, while the other end to one of the Connection contacts for the mating contacts of the switching element is connected · Due to this design, Ban is not able to completely separate the heating winding from the mating contact, which considerably limits the application possibilities of the circuit breaker .

Xn the drawing, the innovation is illustrated in an embodiment, namely show:

Fig.l is a longitudinal section through a circuit breaker Fig. 2 is a plan view of the open side of the housing and Fig. 5 a top view of the underside of the circuit breaker

The circuit breaker shown in Figures 1, 2 and 5 exists from a housing made of insulating material 1 hit cylindrical interior roughness 2. Zn dea interior rhyme 2 is that thermally controlled switching element S and a heating coil 4 housed · As switching element 5, one with the switching contacts 5 and 7 provided binetallic spring used, the a means of a centrally adjustable adjusting screw 9 aa bottom of the housing 1 is adjustable. To the side The switching element 5 is guided in the interior space 2 two guide grooves 10 and 11 are provided in which the Schaltgiiod S engages with both ends · From the foot of this

two Föhruncsnuten 10 and ± ₃ i _n a the mating contacts 6

APR 5. 1958

and 8 arranged that the electrical connection su the
Establish switching contacts 5 and 7 of switching element S.

The strobe feed into the inside frame 2 takes place through Aa closing contacts 12, 15, 14 and 15, the ire bottom of the housing 1
are anchored · The connection contacts 12 and 14 lead to
the mating contacts 6 and 8, while the connection contacts

15 and 15 for connecting the two ends of the heating coil j

ment 4 are determined. If the housing 1 is made of a metallic Material is produced, the connection contacts xiussen 12, 15, 14 and 15 electrically insulated in the bottom of the housing 1 to be arranged

These thermally controlled switches, which protect the motor from overheating and impermissible power consumption, are usually attached to the Hotorgehause in such a way that the thermally influenceable switching element S has a good exchange of water
to the st at or winding of the motor stands · Beiia switch on i

of the motor, the switching contacts 5 and 7 of the switching j

glledes S normally on mating contacts 6 and 8, 1

whereby the strobe connection to the engine is established · j In the switched-on position, the switching element 5 is on the one hand

through the flowing stream and on the other hand through j

the heating coil 4, whose heating power from the Stroaaufnah-!

1 ne depends on the engine, mentioned. The switching element S is]

obsessed here so that with a permissible Stroaaufnahse i

and engine temperature is not influenced · Only at üefcer- 1

load on the motor and the associated overheating. ]

the switching element 5 bends and opens the switching j contacts 5,6,7 and 8

APR 5. 193

line »us motor interrupted and the motor stopped ·
As soon as the engine has cooled down. moves the switch—
link S back to the switch-on position and j switches the motor on again.However, this type of switching is only 1

suitable for small switching capacities · I

If you have to cope with larger numbers, the circuit breaker, since the heating winding 4 is completely independent of the mating contacts 6 and 8, can also be used to control a ι

Switching switch for switching on and off the circuit j

In this case, the j good heat exchange bit for the motor, which is heated by the heating winding 4 and which can be thermally influenced, is located in the control circuit of the contactor. The heating coil 4
lies the main stroakkreis des Mo tors, so that their heating capacity depends on the current consumption of the engine.
As soon as overheating of the motor occurs due to overload, the switching element 5 turns and interrupts the
Control circuit of the Sehaltsohütsen, which now switches off the engine. The main switch can only be closed again after the engine has cooled down.

Claims (2)

P A Π Π f) Kronberg (Taunus) .j _f ~, "^ uktionsmo '• nU {j (J switch. Insuc | u« i «| ^ ¹ ^"' ^ j _{5; Z} i) KARL ZlPP PATENT ENGINEER Bod Vilbel, Frankfurter Straße 174 Postscheck: Frankfurt (Main) 147042 Telephone: S47 My sign: 2./5184 Ga. Gebrauehsauster notification from Pirsa · * "* ' Qobv ₉ from Alten, Kronberg / Js · Protection claim Electrical circuit breaker, in particular for Induktionssotoren xoit thermally controlled Sch old member zusaxraen nit one serving for its heating the heating coil in a housing is accommodated, characterized in that _y that the two ends of the heating coil (4) and the mating contacts (6,8) for the Switching contacts (5,7) attached to switching element (5) bit in housing-a (1) insulated, according to Ausson connecting contacts (12,15,14,15) are provided for the StroBZUleitlinien so that the heating coil (4) is independent from the Gocen contacts (6,8) for the switching element (5) can be switched Bad Vilbel, December 50 © but 1955