CN216084552U

CN216084552U - Multi-tap reactor

Info

Publication number: CN216084552U
Application number: CN202121799449.0U
Authority: CN
Inventors: 赵旭博; 袁海涛
Original assignee: Beijing Heyuan Kedian Electric Co ltd
Current assignee: Beijing Heyuan Kedian Electric Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-03-18
Anticipated expiration: 2031-08-03

Abstract

The application relates to a reactor that takes a percentage more includes: a CD-shaped iron core and a coil skeleton; the CD-type iron core comprises two semi-ring-shaped iron cores, and an air gap is arranged between two ends of each semi-ring-shaped iron core; the air gap is filled with an insulating part; the two semicircular iron cores are respectively sleeved with a coil framework; the two coil frameworks are wound with coils; the two coils are connected in series; taps are respectively led out from the positions of the coils with different turns; the number of taps is at least three. So, according to the square of the coil turns and the proportional relation of inductance value, through set up a plurality of taps on the coil of same inductor, can possess the reactor that can export a plurality of inductance values, satisfied user's many sense values demand, simultaneously, saved occupation space greatly.

Description

Multi-tap reactor

Technical Field

The application relates to the technical field of electrical equipment, in particular to a multi-tap reactor.

Background

With the rapid development of power electronic technology, frequency converters are increasingly widely applied to industrial electric transmission. Due to the switching characteristic of the inverter circuit of the frequency converter and the nonlinear and impact power utilization modes of the inverter circuit, input and output currents of the frequency converter contain a plurality of harmonic components, and the harmonic components are propagated in various forms to form interference signals to other equipment or a power grid. The reactor is added to limit the impact current, filter the system harmonic, reduce the harmonic input to the power grid and improve the voltage quality.

In the related art, most of the existing reactors have a fixed inductance value, and if a frequency converter needs a plurality of inductance values, a plurality of reactors are needed to meet the requirement. However, a plurality of reactors occupy a large space, often causing inconvenience to users.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application aims to overcome the defects that in the prior art, most reactors have a fixed inductance value and cannot meet the multi-inductance value requirement of a user at the same time, and provide a multi-tap reactor.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the application provides a reactor that takes a percentage more includes: a CD-shaped iron core and a coil skeleton;

the CD-type iron core comprises two semicircular iron cores, and an air gap is arranged between two ends of each semicircular iron core; an insulating part is filled in the air gap; the coil frameworks are sleeved on the two semicircular iron cores respectively; the two coil frameworks are wound with coils; the two coils are connected in series; taps are respectively led out from the positions of the coils with different turns; the number of taps is at least three.

Optionally, the device also comprises a fixing clip device;

and the fixing clamp device is used for fixing the CD-shaped iron core.

Optionally, the fixing clip device comprises an upper clip, a lower clip and a fastener;

the upper clamping piece and the lower clamping piece are respectively arranged on the upper side and the lower side of the CD-shaped iron core, and the CD-shaped iron core is clamped and fixed through the fastening piece.

Optionally, the CD-shaped core further comprises a wiring board, wherein the wiring board is arranged on one side of the CD-shaped core and used for fixing the tap.

Optionally, the wiring board further comprises a bracket, wherein the bracket is fixedly arranged on the outer side of the iron core and used for fixing the wiring board.

Optionally, the material of the wiring board comprises an epoxy board.

Optionally, the insulator comprises an epoxy plate.

The technical scheme provided by the application can comprise the following beneficial effects:

in the scheme of this application, adopted CD type iron core and coil skeleton, wherein, CD type iron core includes two semi-ring type iron cores, is provided with the air gap between two semi-ring type iron core's both ends for the inductance value of adjustment reactor, it has the insulating part to fill in the air gap, plays insulating and the effect of support. The coil frameworks are respectively sleeved on the two semicircular iron cores, the two coils are correspondingly wound on the two coil frameworks, the two coils are connected in series, taps are respectively led out from positions with different numbers of turns of the current coupon, and the number of the taps is at least three. So, according to the square of the coil turns and the proportional relation of inductance value, through set up a plurality of taps on the coil of same inductor, can possess the reactor that can export a plurality of inductance values, satisfied user's many sense values demand, simultaneously, saved occupation space greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a multi-tap reactor according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a CD-shaped iron core of a multi-tap reactor according to an embodiment of the present application.

Fig. 3 is a schematic diagram of an angle structure of a multi-tap reactor according to another embodiment of the present application.

Fig. 4 is a schematic diagram of another angle structure of a multi-tap reactor according to another embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic structural diagram of a multi-tap reactor according to an embodiment of the present application. Fig. 2 is a schematic structural diagram of a CD-shaped iron core of a multi-tap reactor according to an embodiment of the present application. Embodiments of the present application provide a multi-tap reactor, as shown in the figure, this multi-tap reactor may specifically include: a CD-type core 101 and a bobbin 102. The CD-shaped iron core 101 comprises two semi-annular iron cores 1011, and an air gap 1012 is arranged between two ends of the two semi-annular iron cores 1011; the air gap 1012 is filled with an insulator. The two semi-ring-shaped iron cores are respectively sleeved with a coil framework 102; the two coil frameworks 102 are wound with coils; the two coils are connected in series; taps are respectively led out from the positions of the coils with different turns; the number of taps is at least three.

In this embodiment, a CD-type iron core and a coil skeleton are adopted, wherein the CD-type iron core includes two half-ring type iron cores, an air gap is provided between two ends of the two half-ring type iron cores for adjusting the inductance value of the reactor, and an insulating member is filled in the air gap to play a role in insulation and support. The coil frameworks are respectively sleeved on the two semicircular iron cores, the two coils are correspondingly wound on the two coil frameworks, the two coils are connected in series, taps are respectively led out from positions with different numbers of turns of the current coupon, and the number of the taps is at least three. So, according to the square of the coil turns and the proportional relation of inductance value, through set up a plurality of taps on the coil of same inductor, can possess the reactor that can export a plurality of inductance values, satisfied user's many sense values demand, simultaneously, saved occupation space greatly.

For example, setting the required inductance values for a reactor to 0mH, 40mH, 80mH, and 120mH, respectively, the reactor is a four-tap reactor. And setting coils wound on the two semi-ring type iron cores as an A coil and a B coil respectively, wherein the two coils are connected in series. And calculating 728 turns of the coil according to the inductance value, wherein the A coil and the B coil are wound by 364 turns, and according to the calculated number of turns of the coil, the number of turns of 420 corresponding to 40mH, the number of turns of 594 corresponding to 80mH and the number of turns of 728 corresponding to 120mH can be determined. Thus, one tap can be respectively led out from the 0 turn, the 420 turn, the 594 turn and the 728 turn, and the four-tap reactors with the inductance values of 0mH, 40mH, 80mH and 120mH can be obtained.

In implementation, as shown in fig. 2, two half-ring cores 1011 of the CD-shaped core 101 may be disposed up and down, two ports of the two half-ring cores 1011 are opposite to each other, an air gap 1012 is disposed between the two opposite ports, an insulating member is filled in the air gap 1012, and the insulating member may be an epoxy plate, which plays a role in supporting the air gap and insulating.

In practical application, the inductance value of the reactor is related to parameters such as the number of turns of the coil, the size of the coil and the air gap of the iron core, the inductance value of the reactor can be changed by changing the parameters, and the inductance value of the reactor is a fixed value after the parameters are fixed.

In practice, the size of the CD-shaped iron core may be set according to actual requirements, and is not limited herein.

In some embodiments, as shown in fig. 3 and 4, the multi-tap reactor may further comprise a fixing clip device 103 for fixing the CD-shaped core 101.

The fixing clip device 103 may include an upper clip, a lower clip, and a fastener, among others. When the fixing clamp device is used for fixing the CD-shaped iron core, the upper clamp and the lower clamp can be respectively arranged at the upper side and the lower side of the CD-shaped iron core, and the CD-shaped iron core is clamped and fixed through the fastening piece.

In specific implementation, the upper clamping piece and the lower clamping piece can be two iron plates, and the fastening piece can be a bolt. When the CD-shaped iron core is fixed, the CD-shaped iron core can be tightly packed by a packing belt and clamped by the upper iron plate and the lower iron plate, and the iron core is tightened and fixed through bolts.

In order to make the multi-tap reactor more convenient for the user to use, as shown in fig. 3 and 4, the multi-tap reactor may further include a terminal plate 104, and the terminal plate 104 is disposed at one side of the CD-type core 101 for fixing a tap.

In specific implementation, the taps can be led out from the upper end of the coil, each tap is welded with a copper nose and then led out to the wiring board, and the copper noses are fixed on the wiring board by using copper bolts. The copper bolt is reserved with a user wiring position, and the inductance value of each tap can be marked on the wiring board, so that the copper bolt is convenient for users to use.

Also, in order to facilitate fixing of the terminal block 104, as shown in fig. 4, the multi-tap reactor may further include a bracket 105, and the bracket 105 is fixedly disposed outside the core for fixing the terminal block 104.

The bracket 105 may be an L-shaped bracket, one side of which is used for fixing on the iron core pull rod, and the other side of which is used for fixing the wiring board.

It should be noted that the material of the wiring board needs to be an insulating material.

In practice, the material of the wiring board can be epoxy board.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A multi-tap reactor, characterized by comprising: a CD-shaped iron core and a coil skeleton;

2. A multi-tap reactor according to claim 1, characterized by further comprising a fixing clip device;

and the fixing clamp device is used for fixing the CD-shaped iron core.

3. A multi-tap reactor according to claim 2, characterized in that the fixing clip means comprises an upper clip member, a lower clip member and a fastening member;

4. The multi-tap reactor according to claim 1, further comprising a terminal plate provided at one side of the CD-shaped core for fixing the taps.

5. The multi-tap reactor according to claim 4, further comprising a bracket fixedly provided outside the core for fixing the terminal block.

6. A multi-tap reactor according to claim 5, characterized in that the material of the terminal board comprises an epoxy board.

7. A multi-tap reactor according to claim 1, characterized in that the insulation comprises an epoxy plate.