DE687054C - Self-induction coil with variable inductance with a ground core that can be screwed into the coil carrier - Google Patents
Self-induction coil with variable inductance with a ground core that can be screwed into the coil carrierInfo
- Publication number
- DE687054C DE687054C DE1934P0069495 DEP0069495D DE687054C DE 687054 C DE687054 C DE 687054C DE 1934P0069495 DE1934P0069495 DE 1934P0069495 DE P0069495 D DEP0069495 D DE P0069495D DE 687054 C DE687054 C DE 687054C
- Authority
- DE
- Germany
- Prior art keywords
- self
- coil
- screwed
- variable inductance
- induction coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
- Electromagnets (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Description
Selbstinduktionsspule veränderlicher Induktivität mit in den Spulenträger einschraubbarem Massekern Es ist bekannt, Selbstinduktionsspulen für Hochfrequenz dadurch abzugleichen, daß die Permeabilität des von der Spule umschlosseneu Raumes verändert wird. Es ist ferner bekannt, zu diesem Zweck Kerne aus sog. Hochfrequenzeisen in die zu verändernde Selbstinduktionsspule hineinzuschieben oder den wirksamen Kernquerschnitt an den Stirnflächen durch Nähern von ferromagnetischen Massen zu ändern.Self-induction coil with variable inductance in the coil carrier screw-in earth core It is known, self-induction coils for high frequency to be adjusted by the fact that the permeability of the space enclosed by the coil is changed. It is also known to use cores made of so-called high-frequency iron for this purpose to push into the self-induction coil to be changed or the effective one Core cross-section at the end faces by approaching ferromagnetic masses change.
Ferner ist bekannt, den Massekern mit einem Schraubengewinde zu versehen und die Selbstinduktion der Spule dadurch zu verändern, daß dieser Kern in ein Gewinde, welches am Spulenkörper angebracht ist, hineingeschraubt wird.It is also known to provide the earth core with a screw thread and to change the self-induction of the coil by inserting this core into a thread, which is attached to the bobbin, is screwed in.
Auf Selbstinduktionsspulen dieser letztgenannten Art bezieht sich auch der Gegenstand der vorliegenden Erfindung. Die Massekerne derartiger Selbstinduktionsspulen werden bekanntlich durch Pressen von mit Isolierstoff vermischtem feinstem Eisen hergestellt. Derartige Kerne haben aber so schlechte mechanische Eigenschaften, daß sich Gewinde nur aufschleifen, nicht aber eindrehen oder während der Formgebung einpressen lassen. überdies ist die Festigkeit solcher Massekerne so gering, daß daraus hergestellte Schrauben leicht zum Abbrechen neigen. Ein mechanisch fester und in wirtschaftlicher Weise herstellbarer einschraubbarer Massekern ist nun erfindungsgemäß von einer Isolierschicht umspritzt, in die das Gewinde eingeschnitten ist. Die Isolierschicht besteht zweckmäßig aus einem Kunstharz geringer Dämpfung. Das Einschneiden des Gewindes in die Isolierschicht erfolgt in üblicher Weise, beispielsweise mit Hilfe eines spanabhebenden Schneidwerlczeuges; das Gewinde kann aber auch in die Isolierschicht eingepreßt oder eingewalzt werden.Refers to self-induction coils of this latter type also the subject of the present invention. The mass cores of such self-induction coils are known to be made by pressing the finest iron mixed with insulating material manufactured. Such cores have such poor mechanical properties, that threads only grind, but not screw in or during shaping let press in. In addition, the strength of such mass cores is so low that screws made from them tend to break off easily. A mechanically solid one and a screw-in earth core that can be produced in an economical manner is now according to the invention encapsulated by an insulating layer into which the thread is cut. The insulating layer consists expediently of a synthetic resin with little damping. Cutting the thread in the insulating layer takes place in the usual way, for example with the help of a cutting tools; but the thread can also be in the insulating layer pressed in or rolled in.
In der Zeichnung ist eine Selbstinduktionsspule gemäß der Erfindung in einem Axialschnitt und einer Stirnansicht dargestellt. Der Spulenkörper i besteht aus einem Rippenrohr, welches im Innern bei a mit einem Gewinde versehen ist. Zwischen den Rippen ist die Wicklung a, die beispielsweise aus Hochfrequenzlitze besteht, mit den Enden b und c angebracht. Der Kern 3 aus ferromagnetischer Masse ist mit einem Gewinde aus Isolierstoff versehen. Der Massekern trägt einen Schlitz, um diesen mittels eines Schraubenziehers in den Spulenkörper hineindrehen zu können und dadurch die gewünschte Selbstinduktion einzustellen.In the drawing is a self-induction coil according to the invention shown in an axial section and a front view. The bobbin i consists from a finned tube, which is provided with a thread inside at a. Between the ribs is the winding a, which consists, for example, of high-frequency stranded wire, with ends b and c attached. The core 3 made of ferromagnetic mass is with provided with a thread made of insulating material. The mass core has a slot around it to be able to screw into the bobbin with a screwdriver and thereby set the desired self-induction.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1934P0069495 DE687054C (en) | 1934-05-29 | 1934-05-29 | Self-induction coil with variable inductance with a ground core that can be screwed into the coil carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1934P0069495 DE687054C (en) | 1934-05-29 | 1934-05-29 | Self-induction coil with variable inductance with a ground core that can be screwed into the coil carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE687054C true DE687054C (en) | 1940-01-22 |
Family
ID=7391439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1934P0069495 Expired DE687054C (en) | 1934-05-29 | 1934-05-29 | Self-induction coil with variable inductance with a ground core that can be screwed into the coil carrier |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE687054C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE934183C (en) * | 1943-10-09 | 1955-10-13 | Telefunken Gmbh | Process for the production of solid iron components for high-frequency devices |
| DE944866C (en) * | 1951-09-28 | 1956-07-05 | Siemens Ag | High-frequency coil with a fixed main core and a movable adjustment core and a method for their adjustment |
| DE966235C (en) * | 1942-11-24 | 1957-07-18 | Siemens Ag | Electric coil for symmetrically constructed oscillating circuits, the inductivity of which is adjustable |
| DE967047C (en) * | 1951-03-10 | 1957-09-26 | Hans Vogt Dr | Coil with a sintered adjustment core, in particular a sintered ferrite core, which is longitudinally displaceable in its bore by screwing |
| DE1068396B (en) * | 1959-11-05 | |||
| DE974882C (en) * | 1943-03-26 | 1961-05-25 | Siemens Ag | Process for the production of fired compacts from non-plastic mineral raw materials |
| DE975155C (en) * | 1950-11-26 | 1961-10-26 | Hans Vogt Dr | Straight or curved iron powder mass core formed as a full cylinder or full rod of any cross-section |
| DE1129633B (en) * | 1959-04-06 | 1962-05-17 | Companie Ind Des Telephones | Process for the production of a thread guide which serves to accommodate a thread adjustment core on the inner wall of the central bore in the central socket of a pot core |
| DE976123C (en) * | 1951-07-05 | 1963-03-07 | Siemens Ag | Process for the production of threads on cylindrical ferromagnetic cores or cylindrical bores in ferromagnetic cores |
| DE976781C (en) * | 1942-02-06 | 1964-04-23 | Siemens Ag | Electric high-frequency coil with a balancing core and method for producing the thread guide for the balancing core |
| DE1276234B (en) * | 1961-03-30 | 1968-08-29 | Siemens Ag | Adjustable pot core for high frequency coils |
-
1934
- 1934-05-29 DE DE1934P0069495 patent/DE687054C/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1068396B (en) * | 1959-11-05 | |||
| DE976781C (en) * | 1942-02-06 | 1964-04-23 | Siemens Ag | Electric high-frequency coil with a balancing core and method for producing the thread guide for the balancing core |
| DE966235C (en) * | 1942-11-24 | 1957-07-18 | Siemens Ag | Electric coil for symmetrically constructed oscillating circuits, the inductivity of which is adjustable |
| DE974882C (en) * | 1943-03-26 | 1961-05-25 | Siemens Ag | Process for the production of fired compacts from non-plastic mineral raw materials |
| DE934183C (en) * | 1943-10-09 | 1955-10-13 | Telefunken Gmbh | Process for the production of solid iron components for high-frequency devices |
| DE975155C (en) * | 1950-11-26 | 1961-10-26 | Hans Vogt Dr | Straight or curved iron powder mass core formed as a full cylinder or full rod of any cross-section |
| DE967047C (en) * | 1951-03-10 | 1957-09-26 | Hans Vogt Dr | Coil with a sintered adjustment core, in particular a sintered ferrite core, which is longitudinally displaceable in its bore by screwing |
| DE976123C (en) * | 1951-07-05 | 1963-03-07 | Siemens Ag | Process for the production of threads on cylindrical ferromagnetic cores or cylindrical bores in ferromagnetic cores |
| DE944866C (en) * | 1951-09-28 | 1956-07-05 | Siemens Ag | High-frequency coil with a fixed main core and a movable adjustment core and a method for their adjustment |
| DE1129633B (en) * | 1959-04-06 | 1962-05-17 | Companie Ind Des Telephones | Process for the production of a thread guide which serves to accommodate a thread adjustment core on the inner wall of the central bore in the central socket of a pot core |
| DE1276234B (en) * | 1961-03-30 | 1968-08-29 | Siemens Ag | Adjustable pot core for high frequency coils |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE687054C (en) | Self-induction coil with variable inductance with a ground core that can be screwed into the coil carrier | |
| DE728481C (en) | Coil arrangement of two mutually variable self-induction coils | |
| AT151159B (en) | Adjustable high frequency induction coil. | |
| DE679346C (en) | Tuning arrangement, consisting of a coil and a body which can be inserted into the coil and which consists partly of a mass core and partly of a core that absorbs the vibrations | |
| DE767336C (en) | High frequency iron core coil | |
| DE728288C (en) | High-frequency coil with a screw-in iron core | |
| AT159024B (en) | Screwable core, in particular magnetizable ground core for adjusting induction coils and the like. like | |
| AT160743B (en) | High-frequency induction coil, the winding of which is fixedly arranged on a magnetizable earth core. | |
| DE952651C (en) | Adjustable toroidal core coil for high frequency | |
| DE741722C (en) | Magnetizable core for high frequency coils | |
| AT160566B (en) | High frequency coil. | |
| DE665198C (en) | Method for adjusting high-frequency self-induction coils to a certain inductance value | |
| DE1097557B (en) | Winding for transformers u. like | |
| DE757100C (en) | High-frequency coil with a balancing mass core that can be moved axially inside the coil by means of a screw drive | |
| DE678251C (en) | Process for the production of transformer cores | |
| AT159923B (en) | High frequency coil with a ground core. | |
| DE685159C (en) | Press collector | |
| DE489000C (en) | Krarupader with magnetic material wound around the copper conductor in the form of a ribbon | |
| AT153455B (en) | High frequency induction coil. | |
| DE349658C (en) | Cylindrical insulating sleeve made of wrapped hard paper, cut open in length | |
| DE852561C (en) | Band filter for radio equipment | |
| DE688467C (en) | Concentric, air-space-insulated high-frequency cables | |
| DE971698C (en) | Process for the production of a magnetic body for high frequency coils made of finely divided magnetic particles and an insulating material | |
| DE975749C (en) | Stray field free high frequency coil, preferably for VHF frequencies above 30 MHz | |
| DE757830C (en) | High-frequency iron core that can be screwed into a guide tube |