Electromagnetically excitable coil
阅读说明:本技术 可电磁激励的线圈 (Electromagnetically excitable coil ) 是由 M.克恩 T.芬肯 A.诺伊鲍尔 C.施伦索克 于 2018-04-17 设计创作,主要内容包括:已经已知可电磁激励的线圈,其分别通过卷绕电导体形成,所述电导体包括石墨烯和/或碳纳米管。在根据本发明的线圈中,所述线圈可以利用导体带来制造,使得可用于所述线圈的绕组空间最优地被利用。根据本发明规定,至少一个电导体(2)被构成为导体带并且卷绕,使得其导体横截面在确定的长度上被折叠和/或折弯。(In the inventive coil, at least electrical conductors (2) are formed as conductor strips and are wound such that the conductor cross-section thereof is folded and/or bent over a defined length.)
electromagnetically excitable coil (1), each formed by winding at least electrical conductors (2) comprising graphene and/or carbon nanotubes, characterized in that the at least electrical conductors (2) are configured as conductor strips and are wound such that their conductor cross sections are folded and/or bent over a certain length.
2. Coil according to claim 1, characterized in that the conductor strip (2) has an electrical insulation, in particular an electrical insulation consisting of a polymer.
3. Coil according to claim 2, characterized in that the conductor strip (2) has an upper side and a lower side, wherein only the side of these two sides is provided with the electrically insulating part.
4. The coil according to any of the preceding claims, characterized in that a plurality of electrically parallel conductor strips (2) are wound to form the coil (1).
5. A coil according to claims 3 and 4, characterized in that every two single-sided insulated conductor strips (2) are wound around each other so that the non-insulated sides are on top of each other.
6. Coil according to claim 4, characterized in that certain layers of the same conductor strip (2) or layers of different conductor strips (2) overlap each other, in particular so as to bridge steps (6) in the winding.
7. Coil according to any of the preceding claims, characterized in that the coil (1) is wound onto an insulating element (8) which is an insulating paper, a coating or a winding body and has a determined, in particular wave-shaped or sawtooth-shaped profile at its periphery.
8. The coil according to any of the preceding claims, wherein the conductor strip (2) is a flat strip having a width (B) and a thickness (D), wherein the width (B) is a multiple of the thickness (D).
9. The coil according to any of the preceding claims, wherein the conductor strip (2) is a composite of fibres comprising carbon nanotubes and/or a plurality of layers of graphene.
10. Electrical component of an electrical machine, in particular a rotor or a stator, having teeth (3) on which a coil (1) according to any of the preceding claims is arranged in each case.
11. Electrical component according to claim 10, characterized in that an end of each electrical coil (1) is connected with an end of the other coil (1), in particular joined, stranded or connected by van der waals forces.
Technical Field
The invention is based on an electromagnetically excitable coil according to the preamble of the independent claim.
Background
Electromagnetically excitable coils, which are each formed by winding an electrical conductor comprising graphene and/or carbon nanotubes, are known from DE 102007063413 a 1.
Disclosure of Invention
The invention provides an electromagnetically excitable coil with the features of the independent claims, which has the advantage that the coil can be produced using a conductor strip, so that the winding space available for the coil is optimally utilized, and which is achieved according to the invention in that at least electrical conductors are formed as a conductor strip and are wound such that their conductor cross-sections are folded and/or bent over a defined length, by folding the conductor cross-sections of the conductor strip section by section, steps can be formed in the winding in order to achieve a trapezoidal coil, which optimally utilizes the winding space.
Advantageous refinements and improvements of the electromagnetically excitable coil described in the independent claims are possible by means of the measures cited in the dependent claims.
According to an advantageous embodiment, the conductor strip is partially or completely covered by an electrical insulation, the insulating covering can in particular be made of a polymer.
It is particularly advantageous if the conductor strip has an upper side and a lower side, wherein only the side of the two sides is provided with an electrical insulation.
It is also advantageous if a plurality of electrically parallel conductor strips are wound to form a coil. In this way, a coil comprising a plurality of parallel electrical conductors is realized in a simple manner.
In order to optimize this point in terms of the process further , a post calibration of the wound coil can be carried out in the region of the conductor strip, which presses the conductor strip via the step onto the printed conductor lying thereunder and flattens the protrusions due to imprecision during winding and compresses the multilayer printed conductor.
In this way, correspondingly corresponding contours can be imposed on the conductor strip, which contours propagate on the layers of the conductor strip and lead to an ordered layer structure with the highest fill factor and which contours can be matched to the same tooth geometry to different widths of the conductor strip in , the contours of the insulation element enable the use of different conductor cross sections, so that different characteristic curves can be achieved with the same segment geometry.
It is furthermore advantageous if the ends of each electrical coil are connected, in particular coupled, twisted or connected by van der waals forces, to the ends of the other coils. In this way, the electrical connection of the coil is simplified.
Drawings
Two embodiments of the invention are shown simplified in the figures and explained in more detail in the following description.
Fig. 1 shows a coil according to an embodiment in cross section, an
Fig. 2 shows a coil according to a second embodiment.
Detailed Description
Fig. 1 shows a coil according to an th embodiment in cross section.
An electromagnetically
According to the invention, at least
The folded conductor cross section of the
The
Certain layers of the
The
Fig. 2 shows a coil according to a second embodiment. In the coil according to fig. 2, the parts that remain unchanged or function identically with respect to the coil according to fig. 1 are denoted by the same reference numerals.
In the second exemplary embodiment, the layers of the
The coils according to the two embodiments according to fig. 1 and 2 according to the invention can be arranged on the teeth of the stator or rotor, respectively, of the electrical machine. For example, the arrangement shown in fig. 1 or 2 may be arranged consecutively a plurality of times in the circumferential direction with respect to the shaft 4 so as to form a stator. On the electrical machine, the end of each
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