SI8012092A8

SI8012092A8 - Sheet metal strip for manufacturing transformer sheets for e-form cores and to their outerlimbs conformed i-form end sheets of a choke or transformer, especially for the usage as a connecting device for gas-discharge tubes

Info

Publication number: SI8012092A8
Application number: SI8012092A
Authority: SI
Inventors: B Albeck
Original assignee: Schwabe Hermann
Priority date: 1979-08-21
Filing date: 1980-08-21
Publication date: 1996-04-30

Description

Področje tehnike, v katero spada izumFIELD OF THE INVENTION

Izum se nanaša na trak iz pločevine za izdelavo pločevin za jedra E-oblike in z njihovimi zunanjimi kraki skladajočih se zaključnih pločevin I-oblike dušilke ali transformatorja, posebno za uporabo kot priključna priprava za cevi s plinskim praznjenjem. Po mednarodni klasifikaciji patentov spada izum v razreda H 01F 43/02 in H 01F 3/00.The invention relates to a sheet of sheet metal for the production of sheets for E-cores and their outer arms of folding I-shaped end plates of a choke or transformer, especially for use as a connection device for gas-discharge pipes. According to the International Patent Classification, the invention belongs to classes H 01F 43/02 and H 01F 3/00.

Tehnični problemA technical problem

Tehnični problem je takšen trak iz pločevine za lamele, da se ne štancajo brez odpadkov ali z malo odpadkov samo pločevina za jedra E-oblike in zaključna pločevina I-oblike, temveč da se lahko lamele v magnetnem krogu razporedijo tako, da se lahko zračna reža nastavi po potrebi.The technical problem is such a sheet of lamellae that it is not punched without waste or with little waste only the E-shaped core and the I-shaped end plate, but that the lamellae can be arranged in a magnetic circuit so that an air gap can be arranged continue as needed.

Stanje, tehnikeCondition, techniques

Z izdelavo brez odpadkov pločevin za jedra E-oblike in zaključnih pločevin I-oblike za plaščna jedra po DIN 43 300 list 2 je že znan takšen trak izpločevine, pri katerem sta dve pločevini za jedra E-oblike s krakoma tako obrnjeni druga proti drugi, da se tvorita dve zaključni pločevini I-oblike. s štancanjem prostorov, ki se nahajata med kraki. Ta odsek pločevine se sicer lahko izdeluje, brez odpadka pri štancanju, vendar je pomanjkljivo, da ima zračna reža med srednjim krakom pločevin za jedro E-oblike in zaključnimi pločevinami I-oblike zaradi določitve v orodu za štancanje določeno velikost. S tem manjka možnost, da bi se nastavilo velikost zračne reže zaradi izključitve izdelavnlh toleranc na določeno vrednost. S tem tudi ni možno, da bi se s tem znanim postopkom štancania pri optimalni izrabi prostora za navitje proizvedlo zračno režo, ki pripada poljubni, impedanci. Celo z velikimi stroški z več različnimi orodi za štancanje bi se dosegla samo groba razdelitev. Razen tega vodi izštancanje za vsako navitje potrebne zračne reže k dodatnemu proizvodnemu vlaganju, ki se pri visokih delovnih stroških ne more prenašati. Bilo bi sicer možno, da se namesti med konce zunanjih krakov pločevine za jedro E-oblike in konci zaključne pločevine i-oblike vložke za zračno režo. To pa ne zahteva samo zahtevnejše montažne razporeditve za sprenjanje E-I-lamel, temveč nastane kot posledica zunanje zračne reže tudi magneten stresan pretok, ki ga lahko vodi do motečih brnenj.By making waste-free sheets for E-shaped cores and I-shaped end plates for sheath cores in accordance with DIN 43 300 Sheet 2, such a tape is already known, in which two sheets of E-shaped cores with arms are thus facing each other, to form two I-shaped end plates. by punching spaces located between the legs. This sheet section may be made without scraping waste, but it is disadvantageous that the air gap between the middle arm of the E-shape core plates and the I-shape end plates is of a certain size in the stamping tool. This lacks the possibility of adjusting the size of the air gap to exclude fabricated tolerances to a specific value. Thus, it is also not possible to produce an air gap belonging to any impedance with this well-known stamping process for optimal utilization of the winding space. Even at great expense, with multiple different punching tools, only a rough split would be achieved. In addition, fine tuning for each winding of the required air gap leads to additional production input that cannot be tolerated at high operating costs. It would otherwise be possible to fit between the ends of the outer arms of the E-shape core sheet and the ends of the i-shape endplate for the air gap. Not only does this require a more complex mounting arrangement to engage the E-I blades, it also results from an external air gap resulting in a magnetic stress flow which can lead to disturbing buzzing.

Iz OE-PS 294 270 znan tudi rez pločevine za plaščno jedro, ki se tvori iz pločevin za jedro E-oblike in zaključnih pločevin I-oblike, pri čemer se zaključne pločevine I-oblike ustrezno porinejo med krake pločevin za jedro E-oblike. Tu se teži za tem, da se plaščno jedro ne glede na obliko lamele s pomočjo plašča ohišja in dna tako oklene, da ne nastopi nobeno magnetno sipanje in da se lamele čvrsto stisne drugoproti drugi.OE-PS 294 270 also discloses an incision of a sheath core sheet formed from E-shape core plates and I-shape end plates, with the I-shape end plates being properly aligned between the arms of the E-core core. The aim here is to ensure that, regardless of the shape of the blade, the sheath core is shielded so that no magnetic scattering occurs and the blades are firmly squeezed secondarily by the other by means of a sheath and bottom.

Opis rešitve tehničnega problemaDescription of solution to a technical problem

Tehnični problem je rešen s tem, da sta na traku iz pločevine dve vrsti pločevin za jedro E-oblike, ki ležita z odprtimi stranmi nasproti in druga ob drugi in sta na ta način premaknjeni druga proti drugi, da nalegajo konci drug ob drugem ležečih zunanjih krakov dveh sosednjih pločevin za jedro E-oblike na koncu središčnega kraka nasproti ležeče, premaknjene pločevine za jedro E-oblike in da se. zaključne pločevine I-oblike nahajajo v prostih prostorih, ki nastajajo med zunanjimi kraki in središčnimi kraki nasproti si ležečih pločevin za jedre E-oblike. Za oblikovanje magnetnega kroga se zaključne pločevine I-oblike ustrezno potisnejo med zunanje krake pločevin za jedro E-oblike. Na spodnjem in zunanjem delu zunanjih krakov pločevin za jedro E-oblike se nahajajo izvotline, v katere lahko po zaključku paketiranja lamel na znan način vprijema spenjalna letev s svojimi zapognjenimi vzdolžnimi robovi. S tem, da nalegajo pri postopku štancanja po izumu zunanji robovi zunanjih krakov drug proti drugemu, se lahko obe odprtini na njih izštancata z enim samim pehalom, pri čemer se doseže tudi bolj stabilna izvedba tega dela oročta. Nadalje se s postopkom štancanja doseže prednost, da se z ustreznim izoblikovanjem pehala razen obeh odprtin lahko izštanca še dodatno odprtine v središčnem kraku pločevin za jedra E-oblike, ki se je uporabljala za sprejem vložka za zračne reže.The technical problem is solved by the fact that there are two types of E-shaped core sheets on the sheet made of sheet metal, which lie with the open sides opposite and side by side and thus move one to the other so that the ends lie side by side of the arms of two adjacent E-shaped core plates at the end of the center arm opposite the recumbent, displaced E-shaped core plates and that. I-shaped end plates are located in the free spaces formed between the outer arms and the center arms opposite the adjacent E-shaped core plates. To form a magnetic circuit, the I-shaped end plates are properly pushed between the outer arms of the E-shape core plates. The lower and outer parts of the outer legs of the E-shaped core plates are provided with holes in which, upon completion of packing of the lamellae, the clamping bar with its folded longitudinal edges can be gripped in a known manner. By extending the outer edges of the outer arms against each other in the stamping process according to the invention, the two openings on them may be extruded by a single peg, thereby achieving a more stable embodiment of this portion of the ring. Furthermore, it is an advantage of the punching process that, with the proper design of the peg, apart from the two openings, the openings in the center arm of the E-shaped core plates, which were used to receive the air gap insert, can be extracted.

Za izdelavo pločevin za jedra E-oblike in dveh med njihove krake položenih zaključnih pločevin L-oblike je znan tudi že postopek, pri katerem se štancata dve vrsti pločevin za jedra E-oblike, pri katerih ležijo odprte strani druga drugi nasproti in druga poleg druge (DE-OS 2 638 780) . Pri tem postopku segajo konci drug poleg drugega ležečih zunanjih krakov dveh sosednjih pločevin za jedro E-oblike drug preko drugega in med zunanjimi kraki preko središčnega kraka pločevine za jedro E-oblike nastali prost prostor, ki je izpolnjen od obeh v pravokotnih zloženih zaključnih pločevin L-oblike. To znano oblikovanje pločevine za jedro E-oblike in zaključnih pločevin L-oblike ima pomanjkljivost, da sestoji paket pločevine iz treh delov in da zato nima nobene zadostne čvrstosti, ker se lahko srednji deli L-oblike prevrnejo.For the manufacture of sheets for E-shaped cores and two L-shaped end plates placed between their arms, there is already known a process in which two types of sheets are formed for E-cores, in which the open sides are opposite each other and side by side (DE-OS 2 638 780). In this process, the ends of the adjacent outer arms of the two adjacent E-shaped core plates extend over each other and the free space formed between the outer legs of the adjacent E-shaped core plates extends from both in rectangular stacked termination sheets L -forms. This well-known design of the E-shaped core and L-shaped end plates has the disadvantage that it consists of a three-part sheet package and therefore does not have sufficient strength because the middle parts of the L-shape can overturn.

Postopek štancanja po izumu se lahko prednostno izoblikuje tako, da se naredi zaključna pločevina I-oblike daljša kot prosti prostor med zunanjimi kraki pločevine za jedra E-oblike. S tem se doseže, da se lahko paket zaključnih pločevin I-oblike pod napetostjo potisne med zunanje krake. Isti cilj se lahko doseže tudi z izštancanjem koncev zaključne pločevine I-oblike s poševnino, vendar z dodatno prednostjo, da je uvajanje I-paketa med zunanje krake E-paketa olajšano.The stamping process according to the invention can preferably be formed by making the I-shaped end plate longer than the free space between the outer legs of the E-shaped core sheet. This ensures that the pack of I-shaped end plates can be pushed under tension between the outer arms. The same objective can also be achieved by extruding the ends of the I-shaped end plate with a slant, but with the added advantage of facilitating the introduction of the I-packet between the outer arms of the E-packet.

V določenih primerih je lahko koristno, če se prostor za namestitev navitja poveča ali tudi zmanjša. Ta naloga je po izumu rešena s tem, da se širina zaključne pločevine I-oblike poveča ali pomanjša. Pri izštancanju se doseže s tem večja ali manjša višina okna med zunanjimi kraki in središčnim krakom pločevine za jedro E-obiike, ne da bi nastal odpadek pri gradivu iz železa. Postopek štancanja po izumu je namenjen prednostno za izdelavo ploske gradbene oblike dušilke, pri čemer ne nastopi odpadek gradiva iz železa. Možni pa so primeri, ki zahtevajo višjo gradbeno obliko dušilke, ne da bi se spremenilo širino. To ima za posledico, da je vsota dolžin središčnega kraka in zunanjega kraka pločevine za jedro E-oblike glede na prosti prostor za izštancanje zaključne pločevine I-oblike večja, kot dolžina zaključne pločevine I-oblike, pri čemer nastaja nepomemben odpadek gradiva iz železa. Bistvena prednost postopka štancanja sestoji tudi v tem, da se pri potrebi po zračni reži med središčnim krakom pločevine za jedro E-oblike in zaključne pločevine I-oblike kot posledica krajšanja središčnega kraka podaljša zunanji krak za znesek zračne reže, s čemer se ustvari brez dodatnega gradiva iz železa povečan prostor za navitje.In some cases, it may be useful to increase or decrease the space for winding installation. According to the invention, this task is solved by increasing or decreasing the width of the I-shaped end plate. Extrusion results in a greater or lesser height of the window between the outer legs and the center arm of the E-shaped core, without the waste of iron material. The stamping process according to the invention is preferably intended for the manufacture of a flat damper construction structure, without waste of iron material. However, there are cases that require a taller choke construction without changing the width. This results in the sum of the lengths of the center arm and the outer arm of the E-shaped core sheet relative to the free space for extrusion of the I-shape end plate larger than the length of the I-form end plate, resulting in insignificant waste of iron material. The essential advantage of the stamping process is that, when the air gap is required between the center arm of the E-shape core and the I-shape end plate as a result of the shortening of the center arm, the outer arm is extended by the amount of air gap, thereby creating without additional materials made of iron increased space for winding.

Nadaljnje prednosti in podrobnosti izuma so razvidne iz naslednjega opisa nekaterih izvedbenih primerov. Tako prikazujejo:Further advantages and details of the invention are apparent from the following description of some embodiments. Here's how:

sl. 3 dušilko s po postopku po izumu izdelanimi pločevinami za jedro in zaključnimi pločevinami v shematskem preseku, slika 2 namestitev E-pločevin za jedro in I-zaključnih pločevin dušilke pri postopku štancanja brez odpadka, slika 3 s postopkom izdelano pločevino za jedro E-oblike in zaključno pločevino I-oblike s posnetimi konci in slika 4 razmestitev E-pločevin za jedra in I-zaključnih pločevin pri postopku štancanja z malo odpadki.FIG. Fig. 3 is a choke with schematically sectioned core plates and end plates according to the invention according to the invention, Fig. 2 installation of E core plates and throttle I end plates in a non-waste punching process, Fig. 3 is an E-shaped core process plate and I-shaped end plate with taped ends and Figure 4 arrangement of E-core cores and I-end plates in the low-waste stamping process.

V sliki 3 prikazana dušilka ima železno jedro, ki sestoji iz pločevin 1 za jedro E-oblike in zaključnih p3očevin 2 I-oblike. Središčni kraki 3 pločevin 3 za jedro E-oblike so obdani s tuljavo 4, ki se po navijanju potisne na paket E-ploče.vin 3 za jedro. Med zaključno pločevino 2 I-oblike in središčnim krakom 3 pločevine 1 za jedro E-oblike je nameščen' vložek 4a za režo, ki se lahko deformira in ki sega v utor 5, ki se nahaja v središčnem kraku 3. S pomočjo tega utora 5 je preprečeno, da bi se vložek 4a za zračno režo pri montaži odmaknil od sredine, tako da ne morejo nastopiti dodatne izgube zaradi vrtinčastih tokov. Potem, ko je paket zaključnih pločevin 2 I-oblike ustrezno potisnjen med zunanje krake 6 paketa pločevin 1 za jedro E-oblike, se zatem natakne spenjalna letev 7, ki vprijema s navzgor in navznoter zapognjenimi vzdolžnimi robovi 8 v konce zunanjih krakov 6 in se s svojimi vzdolžnimi robovi 8 sede v izvotline 9 na zunanjih krakih 6.In Figure 3, the throttle shown has an iron core consisting of sheets of E-shaped core 1 and terminals 2 of I-shape. The center arms 3 of the E-shaped core 3 are surrounded by a coil 4 which, after winding, is pushed onto the E-plate package.vin 3 for the core. Between the I-shaped end plate 2 and the center arm 3 of the E-shaped core 1, a 'deformable insert' 4a is inserted, which extends into a groove 5 located in the center arm 3. By means of this groove 5 it prevents the air gap insert 4a from moving away from the center, so that no additional eddy current losses can occur. After the I-shaped end plate package 2 is properly pushed between the outer arms 6 of the E-core core package 1, a clamping bar 7 is then inserted, which engages the upward and downward curved longitudinal edges 8 into the ends of the outer arms 6 and with their longitudinal edges 8 seated in the recesses 9 on the outer arms 6.

Slika 2 prikazuje, kako se pridobivajo pločevine 1 za jedro E-oblike in zaključne pločevine 2 I-oblike za dušilko po sliki 1 brez odpadka iz pločevinastega traku. Za dosego štancanja brez odpadka so pločevine 1 za jedro E-oblike razporejene druga proti drugi in tudi tako premaknjene, da na lega en konec 10 zunanjih krakov 6 dveh pločevin 1 za jedra E-oblike. na koncu središčnega kraka 3 druga proti drugi obrnjene pločevine 1 za jedro E-oblike. Pri tej prestavljeni razporeditvi druga proti drugi usmerjenih pločevin 1 za jedro E-oblike pripadata z izštancanjem prostorov, ki se nahajata med zunanjimi kraki 6 in srednjima krakoma, 3 vsakokrat po dve zaključni pločevini 2 I-oblike.Figure 2 shows how to obtain sheets 1 for the E-core core and end plates 2 of the I-shape for the damper according to Figure 1 without waste from the sheet metal. To achieve punching without waste, the sheets 1 for the E-shaped core are stacked against each other and also moved so that one end 10 of the outer arms 6 of the two sheets 1 for the E-shaped cores are positioned. at the end of the center arm 3 facing one another facing the E-shaped core 1. In this shifted arrangement of the E-shaped cores 1 directed towards each other by subtracting the spaces located between the outer arms 6 and the middle arms 3 each of the two I-shaped end plates 2 each.

Nadalje je v sl. 2 prikazano, da se lahko odprtine 9 na zunanjih krakih 6 in utor 5 v srednjem kraku 3, ki je namenjen za sprejem vložka 4a za zračno režo, izštancajo kot posledica premaknjene razporeditve pločevin 1 za jedro E-oblike z enim samim pehalom.Further, in FIG. 2 shows that the openings 9 on the outer arms 6 and the groove 5 in the middle arm 3 intended to receive the air gap insert 4a can be counterbalanced as a result of the displaced sheet arrangement 1 for the single-core E-shaped core.

Ustrezno sliki 3 imata zaradi lažjega uvajanja in povečanega stiskanja I-paketov med zunanjima krakoma 6 E-paketa konca zaključnih pločevin 2 I-oblike. poševnino 11, ki se razumljivo povrne kot poševnina 12 na pločevini 3 za jedro E-oblike, ne da bi imela tu praktičen pomen.Accordingly, Fig. 3, for ease of introduction and increased compression of the I-packets between the outer arms of the 6 E-packets, have 2 I-shaped end plates. obliquity 11, which is understandably recovered as obliquity 12 on sheet metal 3 for the E-shape core, without having any practical meaning here.

Slika 4 prikazuje razporeditev pločevine 3 za jedro E-oblike in zaključnih pločevin 2 I-oblike pri postopku štancanja z malo odpadki. Vsota dolžin iz središnega kraka 3 in zunanjega kraka 6 pločevine 3 za jedro E-oblike glede na prost prostor za izštancanje zaključne pločevine. I-oblike je večja kot dolžina zaključne pločevine I-oblike, zaradi česar nastane odpadek A na gradivu iz železa.Figure 4 shows the arrangement of the E-shape core 3 and the I-shape end plates 2 in the low-waste stamping process. The sum of the lengths from the center arm 3 and the outer arm 6 of the E-shaped core 3 relative to the free space for extrusion of the end plate. The I-shape is larger than the length of the I-shape end plate, resulting in waste A on the iron material.

Na trak iz pločevine, t.j. trak iz materiala, iz katerega se izdelujejo pločevine E- in I-oblike za transformatorska jedra, je sestavljen iz med seboj se povezanih E- in I-pločevin za jedra tako, da sta na traku nameščeni dve vrsti pločevin E-oblike, ki ležita z odprtimi stranmi nasproti in druga ob drugi in sta premaknjeni druga proti drugi tako, da na legajo konci drug ob drugega ležičih zunanjin krakov dveh sosednjin pločevin E-oblike na koncu središčnega kraka nasproti ležeče, premaknjene pločevine E-oblike. Ob štancanju tega traku iz pločevine pa se iz prostih prostorov med zunanjimi kraki in središčnimi kraki pločevin Ε-oblike pridobijo zaključne pločevine i-oblike.On a sheet of sheet metal, i.e. a strip of material from which E- and I-shaped sheets for transformer cores are made consists of interconnected E- and I-sheets for cores such that there are two types of E-shaped sheets lying on the strip with the sides open and side by side and moved one against the other by the ends of the outer arms of the legs of two adjacent E-shaped sheets at the end of the center arm opposite the lying, displaced E-shaped sheets. However, when this sheet is stamped, the i-shaped end plates are obtained from the open spaces between the outer arms and the center arms of the Ε-shaped sheets.

Claims

PATENT APPLICATIONS

3. Sheet metal strip for the manufacture of sheets for E-cores and their outer arms of stackable I-shaped end plates of a choke or transformer, specially for use as a connection device for gas-discharge pipes, characterized in that it is provided with two types of sheets for the E-shaped core (3), which are open side to side and side by side, so that they are displaced 'one to the other so that the ends (10) of the outer outer arms (6) lie side by side two adjacent sheets of the E-shaped core (!) at the end of the center arm (3) opposite the disposed, displaced sheets of the E-shaped core (1), and that the I-shaped end plates (2) are located in the free spaces between the outer arms ( 6) and center arms (3) opposite the E-shaped core plates (1).

Sheet metal strip according to claim 1, characterized in that the ends of the I-shaped end plates (2) have a bevel (13).

Sheet metal strip according to claim 3, characterized in that the sum of the lengths of the center arm (3) and the outer arm (6) of the sheet for the E-shaped core (1) is greater than the length of the I-shaped end sheet (2).