NO124331B

NO124331B -

Info

Publication number: NO124331B
Application number: NO4661/70A
Authority: NO
Inventors: Sven Olof Edholm
Original assignee: Sven Olof Edholm
Priority date: 1968-03-15
Filing date: 1970-12-04
Publication date: 1972-04-04
Also published as: SE327773B

Description

Koplingsanordning for et med elektriske Connection device for a with electric

elementer oppvarmbart forbrenningskammer elements heatable combustion chamber

for elektriske toaletter. for electric toilets.

Foreliggende -oppfinnelse angår en koplingsanordning The present invention relates to a coupling device

for et med -elektriske elementer oppvarmbart forbrenningskammer for elektriske toaletter, omfattende en fo.rsté med holijexspole forsynt kontaktor mellom-en stromkiTdes poler og én viftemotor, samt en annen med boldespoler forsynt kontaktor mellom strømkildens poler -og det elektriske element. for a combustion chamber for electric toilets that can be heated with electric elements, comprising a first contactor provided with a holijex coil between the poles of a power supply and one fan motor, as well as another contactor provided with ball coils between the poles of the current source and the electric element.

Hensikten med oppfinnelsen er å skaffe tilveie en koplingsanordning som tillater kontinuerlig anvendelse av det elektriske toalett for hvilket den er beregnet, uavhengig av hvor lang tid som går mellom et flertall tomninger i toalettets forbrenningskammer. The purpose of the invention is to provide a coupling device which allows continuous use of the electric toilet for which it is intended, regardless of how much time elapses between a plurality of emptyings in the toilet's combustion chamber.

Dette oppnåes ifolge oppfinnelsen ved at en parallellkrets inneholdende i den ene gren en i uoperert stilling sluttet kontakt for et repeterende tidsrelé i serie med den annen kontaktors holdespole og i den annen gren en forste strombryter i serie med tidsr eléet.s spole., er koplet mellom strømkildens poler i serie med en annen, med den forste strombryter mekanisk sammenkoplet strombryter, som bryter når den forste- strombryter slutter og omvendt. This is achieved according to the invention by connecting a parallel circuit containing in one branch a closed contact for a repetitive time relay in series with the second contactor's holding coil and in the other branch a first circuit breaker in series with the time relay's coil. between the poles of the current source in series with another, with the first circuit breaker mechanically linked circuit breaker, which breaks when the first circuit breaker closes and vice versa.

Oppfinnelsen skal i det folgende beskrives nærmere The invention will be described in more detail below

med- henvisning til tegningen. with reference to the drawing.

Koplingsanordningen ifolge oppfinnelsen kan anvendes for et elektrisk toalett av den art som er beskrevet i norsk patent The coupling device according to the invention can be used for an electric toilet of the type described in the Norwegian patent

nr. 121. 857* Het'til oppvarmning av taalettets forbrenningskammer beregnede element 70 kan ifolge alternativ a på tegningen være tilkoplbart mellom en fase og nullpunktet i et trefasenett eller ifolge alternativ b være koplet i stjernekopling til alle tre faser 1 et trefasenett. Koplingsanordningen omfatter en forste, med holder-spole 72 forsynt kontaktor med en kontakt 74 i serie med en viftemotor 76 mellom trefasenettets' nullpunkt og en fase i samme. Viftemotoren 76 er beregnet - for drift av en vifte for å drive ut for-brennings-gassene fra forbrenningskammeret. Videre er en annen, med holdespole 78 forsynt kontaktor anordnet med tre kontakter 80 mellom stromkildens poler og det elektriske element 70. No. 121. 857* The element 70 designed for heating the boiler's combustion chamber can, according to alternative a in the drawing, be connected between a phase and the zero point in a three-phase network or, according to alternative b, be connected in a star connection to all three phases 1 a three-phase network. The switching device comprises a first contactor provided with holding coil 72 with a contact 74 in series with a fan motor 76 between the zero point of the three-phase network and a phase in the same. The fan motor 76 is intended - for operating a fan to expel the combustion gases from the combustion chamber. Furthermore, another contactor provided with holding coil 78 is arranged with three contacts 80 between the poles of the current source and the electrical element 70.

Ifolge oppfinnelsen er der mellom en fase og nullpunktet i strømkilden koplet en strombryter 82 i serie med en parallellkrets, hvis ene gren omfatter en med strombryteren 82 mekanisk koplet strombryter 82' i serie med et tidsrelés spole 84r og hvis annen gren omfatter en kontakt 86 på tidsreléet i serie med kontaktorspolen 78. Kontaktorspolen 72 er mellom nullpunktet og samme- fase koplet i serie med en ytterligere kontakt B8 på kontaktoren for viftemotoren 76. Parallelt med denne kontakt 88 er tilkoplet en kontakt ?0 på kontaktoren for elementet 70.. De to kontakter 88 og 90 er dessuten paral-lellkoplet med strombryteren 82. I serie med kontakten 88 er videre en termostatkontakt 92 tilkoplet over kontakten 90 og i serie med tidsrelékontakten 86 og kontaktorspolen 78 er koplet en kontakt 94 for en overopphetningsbeskyttelse. According to the invention, a circuit breaker 82 is connected in series with a parallel circuit between a phase and the neutral point of the current source, one branch of which comprises a circuit breaker 82' mechanically coupled to the circuit breaker 82 in series with a time relay coil 84r and whose other branch comprises a contact 86 on the time relay in series with the contactor coil 78. The contactor coil 72 is connected between the zero point and the same phase in series with a further contact B8 on the contactor for the fan motor 76. In parallel with this contact 88, a contact ?0 is connected on the contactor for the element 70.. The two contacts 88 and 90 are also connected in parallel with the circuit breaker 82. In series with the contact 88, a thermostat contact 92 is also connected above the contact 90 and in series with the time relay contact 86 and the contactor coil 78, a contact 94 is connected for an overheating protection.

Ved utløsninga av toalettet, det vil si ved tomming i forbrenningskammeret påvirkes strømbryterne 82 og 82' under en manøvrerende kontaktknapp slik at strombryteren.82 sluttes og strombryteren 82' åpnes. Derved får kontaktorspolen 72 strom og starter viftemotoren 76 over kontakten 74. Samtidig mates kontaktorspolen 78 med strom over de sluttede kontakter 86 og 94, slik at kontaktene When the toilet is released, that is when the combustion chamber is emptied, the circuit breakers 82 and 82' are affected under a maneuvering contact button so that the circuit breaker 82 is closed and the circuit breaker 82' is opened. Thereby, the contactor coil 72 receives current and starts the fan motor 76 via the contact 74. At the same time, the contactor coil 78 is fed with current via the closed contacts 86 and 94, so that the contacts

80 sluttes og elementet 70 får strom. Den nevnte kontaktknapp kan være slik anordnet- at den igjen manovreres når luken for det elektriske toaletts forbrenningskammer lukkes, slik at strombryteren 82 igjen åpnes og strombryteren 82' sluttes. Derved får kontaktorspolene 72 og 78 holdestrom over kontakten 90 som ble sluttet i og med at kontaktorspolen 78 fikk strom. Gjennom strømbryterens 82' slutting får dessuten spolen 84 strom og tidsreléet begynner å gå. Dette tidsrelé kan være innstilt på ca. 30 minutter. Når et visst grad- 80 is connected and element 70 receives power. The aforementioned contact button can be arranged in such a way that it is operated again when the hatch for the electric toilet's combustion chamber is closed, so that the circuit breaker 82 is opened again and the circuit breaker 82' is closed. Thereby, the contactor coils 72 and 78 receive a holding current across the contact 90, which was closed when the contactor coil 78 received current. Through the current switch's 82' closing, the coil 84 also receives current and the time relay starts to operate. This time relay can be set to approx. 30 minutes. When a certain degree-

tall er oppnådd, sluttes termostatkontakten 92 som dermed overtar viftemotorens 76 drift. Når tidsreléets kontakt 86 åpnes etter ca. number is reached, the thermostat contact 92 is closed, which thus takes over the operation of the fan motor 76. When the time relay's contact 86 is opened after approx.

30 minutter, blir kontaktorspolen 78 stromlos, slik at kontaktene 30 minutes, the contactor coil 78 becomes de-energized, so that the contacts

80 og 90 åpnes og elementet 70 avkjoles. Viften fortsetter imidlertid å gå ved at termostatkontakten 92 er sluttet. Denne kontakt åpnes forst når temperaturen synker til ca. 50° C i forbrenningskammeret, hvorved også viften stanser. 80 and 90 are opened and element 70 is cooled. However, the fan continues to run when the thermostat contact 92 is closed. This contact is only opened when the temperature drops to approx. 50° C in the combustion chamber, whereupon the fan also stops.

Hvis toalettet skal anvendes på nytt midt under en forbrenningsperiode med elementet 70 og viftemotoren innkoplet, brytes strommen til tidsreléspolen 84 ved at strombryteren 82' åpnes på grunn av at nevnte kontaktknapp manovreres av forbrenningskammerets luker når de åpnes for tommingen. Tidsreléet har ifolge et karakteristisk trekk ved oppfinnelsen en repeterende funksjon, det vil si at når strombryteren 82' igjen sluttes ved lukenes lukking, starter dette på nytt og en ytterligere forbrenningsperiode på 30 minutter står til disposisjon for forbrenningen. Under det nye tomningsforlSp fortsetter naturligvis viftemotoren 76 å gå over termostatkontakten 92. Hvis -et flertall tSmninger i forbrenningskammeret sk-ulle finne sted etter hverandre, står således hver gang en tid på 30 minutter til disposisjon for forbrenningen. Dette gj.Sr at toalettet kan anvendes kontinuerlig i motsetning til kjente toaletter som er utstyrt bare med termostater som folger temperaturen i forbrenningskammeret. Ved disse kjente toaletter "kan ny utlosni-ng ikke finne sted for termo-staten er brutt på toppen eller som regel etter 25 til 30 minutter. If the toilet is to be used again in the middle of a combustion period with the element 70 and the fan motor switched on, the current to the time relay coil 84 is broken by opening the circuit breaker 82' due to said contact button being operated by the combustion chamber hatches when they are opened for emptying. According to a characteristic feature of the invention, the time relay has a repetitive function, i.e. when the circuit breaker 82' is closed again when the hatches are closed, this starts again and a further combustion period of 30 minutes is available for combustion. During the new emptying period, the fan motor 76 naturally continues to go over the thermostat contact 92. If -a majority of tSmings in the combustion chamber were to take place one after the other, a time of 30 minutes is thus available for combustion each time. This means that the toilet can be used continuously, in contrast to known toilets which are equipped only with thermostats that follow the temperature in the combustion chamber. With these well-known toilets, a new discharge cannot take place because the thermo-state is broken at the top or, as a rule, after 25 to 30 minutes.

BeskyttelseskontaVten 94 bryter strommen til kontaktorspolen 78 hvis temperaturen i forbrenningskammeret skulle bli for hoy. Videre foreligger en beskyttelseskontakt 96 ved en under forbrenningskammeret anordnet askeskuff, hvilken kontakt bryter hele stromtilforselen til den beskrevne krets ved uttrekking av askeskuffen.. The protection contact 94 breaks the current to the contactor coil 78 if the temperature in the combustion chamber should become too high. Furthermore, there is a protective contact 96 at an ash tray arranged below the combustion chamber, which contact breaks the entire power supply to the described circuit when the ash tray is pulled out.

Claims

1. Connection device for a combustion chamber heatable with electric elements (70) in electric toilets, comprising a first contactor provided with a holding coil (72) between the poles of a current source and a fan motor (76). as well as another contactor provided with a holding coil (78) between the poles of the current source and the electrical element (70), characterized in that a parallel circuit containing in one branch a closed contact (86) for a repeating time relay in series with the second contactor's holding coil (78) and in the second branch a first circuit breaker (B2<!>) in series with the time travel coil (84), the connection between the current source's poles is in series with another, with there. first circuit breaker mechanically linked circuit breaker (82), which switches when the first circuit breaker (82') closes and vice versa..

2. Switching device according to claim t, characterized in that a contact (9-0) on the other contactor is connected in parallel with the second circuit breaker (82) and in series with the first contactor's holding coil (72) connected between the poles of the current source.

3. Device according to claim 1 or 2, characterized in that the holding coil (72) of the first contactor is connected in series with a contact (88) on the first contactor between the poles of the current source.

4. Device according to claims 2 and 3, characterized in that the said contacts ("38 j 90) of the two contactors are connected in parallel.

5. Device according to claim -4, characterized in that in parallel with the second contactor's mentioned contact (90) a thermostatic contact (92) is connected in series with the first contactor's mentioned contact (88) which closes at high temperature and opens at low temperature .

6. Device according to one of claims 1 to 5, characterized in that an overheating protection contact (94) is connected in series with the time relay's closed contact (86) in the unoperated position and the holding coil (78) of the other contactor.