PL7256B1

PL7256B1 - Switch for three-phase motors.

Info

Publication number: PL7256B1
Application number: PL7256A
Authority: PL
Filing date: 1922-10-19
Publication date: 1927-05-31

Description

Przedmiotem niniejszego wynalazku jest przelacznik do silników pradu trójfa¬ zowego, który powyzej wskazane wady najzupelniej usuwa. Na zalaczonym rysun¬ ku jest przedstawiony proponowany prze¬ lacznik na fig. 1—w widoku zprzodu; fig. 2—przedstawia przekrój fig. 1 wedlug linji A — B; fig. 3 — widok wnetrza przelacz¬ nika i figi 4 — widok kontaktów.Proponowany przelacznik sklada sie z pudelka 1, umieszczonego w przymocowa¬ nej do sciany podstawie 2. W pudelku 1 umieszczony jest poruszajacy sie na sworz¬ niach 3 i 4 suwak 5, majacy celowo zakon¬ czenie o stozkowym profilu. Okolo sworzni 3—4 owiniete sa sprezyny 6 i 7, z których kazda jednym swym koncem opiera sie o pifcfólko /, a drugim koncem — o zgrubie¬ nia 9, 10 na suwaku 5. Sprezyny 6 i 7 w sNitrem dazeniu rozszerzania sie sa powstrzy¬ mywane przeJz byczki 11 i 12.Do suwaka 5 przylega izolacyjna plytka 13, zaopatrzona w kontakty 14, 14lf 142..., a do podstawy 2 przylega izolacyjna plyt¬ ka 15, zaopatrzona celowo w dziewiec spre¬ zynowych kontaktów 16, 16u 162... Do su¬ waka 5 przylega koniec drazka 17, obraca¬ jacego sie okolo osi 18 w pudelku 1.Na fig. 1 zalaczonego rysunku przedsta¬ wione jest polozenie czesci przelacznika przy jego calkowitem wlaczeniu, t. j. przy polaczeniu faz silnika w trójkat, W celu wylaczenia silnika wywiera sie nacisk na drazek 17', który przy obrocie okolo osi 18 podnosi koncem swym suwak 5, który, przeslizgujac sie swym stozkowym wyste¬ pem wzdluz sprezynowych zatyczek 12 i 11, kolejno je unosi i opiera sie w rezulta¬ cie na wtyczce \1, wylaczajac silnik.W celu rozruchu silnika, t. j. polacze¬ nia jego faz w gwiazde, wtyczka 11 zosta¬ je odrecznie wysunieta, przyczem suwak 5 pod dzialaniem sprezyn 6 i 7 zeskakuje i swoim stozkowym wystepem opiera sie o wtyczke 12, a wówczas dolne kontakty 14 K, 144, 143 lacza odpowiednio dziewiec kon¬ taktów 16, 161} 162 (6 konców 3 faz silnika i 3 kontakty przewodowe).Dla osiagniecia wlaczenia faz silnika w trójkat wysuwa sie nastepna wtyczke 12, wskutek czego suwak 5, znów pozbawiony oparcia, pod dzialaniem sprezyn 6 i 7 opa¬ da i otrzymuje sie wskazane na zalaczonym rysunku polozenie, w którem górne kontak¬ ty 14, 14u 14., lacza odpowiednio w trójkat kontakty 16, 16lf 162. PL PLThe subject of the present invention is a switch for three-phase current motors, which completely eliminates the above-mentioned drawbacks. The accompanying drawing shows the proposed switch in Fig. 1 in a front view; Fig. 2 shows a section of Fig. 1 taken along line A-B; Fig. 3 - view of the inside of the switch and Fig. 4 - view of the contacts. The proposed switch consists of a box 1, placed in a base fixed to the wall 2. In box 1 there is a slider 5 that moves on pins 3 and 4. deliberately ending with a conical profile. The springs 6 and 7 are wrapped around the pins 3 - 4, each of which rests against the half-fold with one end, and the other end against the beads 9, 10 on the slide 5. The springs 6 and 7, in order to expand, are prevented by The insulating plate 13 with contacts 14, 14If 142 ... adjoins the slide 5, and the insulating plate 15 adjoins the base 2, purposefully with nine spring contacts 16, 16 and 162 ... The end of the rod 17 adjoins the slide 5, rotating about the axis 18 in the box 1. Fig. 1 of the attached drawing shows the position of the switch part when it is completely turned on, i.e. when the engine phases are joined into a triangle, In order to switch off the engine, pressure is exerted on the rod 17 ', which when rotating about the axis 18 lifts with its end the slide 5, which, sliding with its conical projection along the spring plugs 12 and 11, lifts them in sequence and rests as a result. on plug \ 1, switching off the engine. To start motor, i.e. star connection of its phases, plug 11 is manually pulled out, when the slider 5 jumps under the action of springs 6 and 7 and with its conical protrusion it rests on the plug 12, and then the lower contacts 14K, 144, 143 connect Nine contacts 16, 161, 162, respectively (6 ends of the 3 motor phases and 3 wire contacts). In order to reach the motor phases, the next plug 12 is extended into a triangle, with the result that the spool 5, again without support, under the action of springs 6 and 7 it descends and the position indicated in the attached drawing is obtained, in which the upper contacts 14, 14 and 14. connect contacts 16, 16 and 162 respectively in a triangle. EN EN

Claims

1. Patent claims. 1. Switch for three-phase motors, characterized by a slider (5) mounted in the base (2) of the box (1) with an ending with a conical profile, moving on pins (3, 4) around which it is wound there are springs (6, 7), each of which rests against the box (1) with one end, and the other - against the thickenings (9, 10) on the slider (5), respectively, and the expansion of which is prevented by the plugs (11). , 12), adjacent to the slider (5) is an insulating plate (13), provided with contacts (14, 14 ^ 142 ...), and the end of the rod (17), rotating around the axis (18) in the box (1) and to the base (2) an insulating plate (15), provided with nine spring contacts (16, 16 µm.

2. Switch for three-phase motors according to claim 1, characterized in that to switch off the engine, pressure is exerted on the rod (17) which rotates about the axis (18) and lifts the slider (5) with its end, which in turn raises the plugs (11, 12) and rests on the plug (11), causing the engine to switch off,

3. Switch according to claim 1, the significant point that for engine start-up, i.e. star connection, the slider (5) after the plug (11) is removed under the action of the springs (6, 7) rests its protrusion against the plug (12), and the lower contacts ( 14., 14A, 14-J connects nine contacts respectively (16, 16u 16 ....).

4. Switch according to claim 1, a significant point, that for switching the motor phases into a triangle, the slider (5) drops after removing the plug (12) under the action of springs (6, 7), while the upper contacts (14, 14If 142) connect the contacts into a triangle, respectively (16, 16u 16J. Zaklady Elektrotechniczne "Lukrec" Spólka- Akcyj na, Deputy: M. Brokman, patent attorney. To the patent description No. 7256. fc.z (jf. LU V ni ii Vf. ¥. W in UUUuuuuU 7 PL PL