CN210467529U - Paramagnetic iron core cake structure for reactor - Google Patents
Paramagnetic iron core cake structure for reactor Download PDFInfo
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- CN210467529U CN210467529U CN201920897022.0U CN201920897022U CN210467529U CN 210467529 U CN210467529 U CN 210467529U CN 201920897022 U CN201920897022 U CN 201920897022U CN 210467529 U CN210467529 U CN 210467529U
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Abstract
The utility model discloses a consequent magnet core cake structure for a reactor, which comprises an iron core cake body, a binding belt, an epoxy inner cylinder and a plurality of cushion blocks; the iron core cake body is of a disc-shaped structure consisting of a plurality of fan-shaped silicon steel sheets with the same structure and size, a cavity is reserved in the middle of the iron core cake body, each fan-shaped silicon steel sheet is formed by overlapping silicon steel sheets with different lengths, a notch is formed in the middle of the outer diameter of each fan-shaped silicon steel sheet, each fan-shaped silicon steel sheet is in a paramagnetic direction, namely the rolling direction of the silicon steel sheets is consistent with the main flux direction (radial direction); the binding belt is arranged on the notch, so that the fan-shaped silicon steel sheets are firmly connected together to form the iron core cake body with a stable structure, and the thickness of the binding belt is not more than the depth of the notch; the epoxy inner cylinder is arranged in the cavity of the iron core cake body; the cushion blocks are uniformly fixed on the upper and lower surfaces of the iron core cake body through epoxy casting. The utility model has the advantages of low loss, low noise, low vibration, no partial discharge, overheating, etc.
Description
Technical Field
The utility model relates to an iron core reactor field, in particular to consequent magnet core cake structure that reactor was used.
Background
In general, the design and manufacture of the iron core cake are indispensable core components of the iron core reactor. The design quality of the scheme of the iron core cake influences multiple key factors of vibration, noise, loss, local overheating and the like of a product, directly determines the quality of the product, and becomes a key factor of product quality competition and price negotiation capability.
Along with the increasing attention of the country to low-carbon economy and environmental protection economy, the requirement of the national power grid on the management of the power grid for the configuration technology of the power grid is also higher, and for example, the parallel reactor serving as one of main equipment of a power station has the characteristics of low loss, low noise, low vibration, reliable quality and the like.
Because the iron core cake is an indispensable structure of the iron core reactor, the design of the iron core cake structure directly determines key indexes of the reactor product.
The iron core cake composed of silicon steel sheets has the characteristics of natural magnetic hysteresis extension and frequency multiplication waveform superposition, caused mechanical noise and electromagnetic noise and the like, and brings great trouble to residents due to large noise, particularly in urban living areas, the masses have strong reverberation; the iron core cake is provided with the air gap with large magnetic resistance, so that when a product runs, the air gap can generate a large amount of magnetic leakage, and the magnetic leakage is scattered to a surrounding steel structure to generate a large amount of additional loss and electromagnetic radiation; the loss is large, and huge energy consumption and waste are caused; if the core element iron core cake used as the reactor device is designed and manufactured with poor quality, the core element iron core cake can cause local overheating of products, and the products are shut down, so that a great disaster is caused to the operation of a power grid.
Therefore, the development of a low-loss, low-noise and local overheating-free iron core cake becomes a core index of each high-end enterprise.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a consequent magnetic core cake structure that overheated reactor was used is put in no office with low loss, low noise, vibration is low.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a paramagnetic iron core cake structure for a reactor, comprising:
the iron core cake body is of a disc-shaped structure consisting of a plurality of fan-shaped silicon steel sheets with the same structure size, a cavity is reserved in the middle of the iron core cake body, each fan-shaped silicon steel sheet is formed by laminating a plurality of silicon steel sheet assemblies with different lengths, a notch is formed in the middle of the outer diameter of each fan-shaped silicon steel sheet, each fan-shaped silicon steel sheet is in a paramagnetic direction, namely the rolling direction of the silicon steel sheets is consistent with the main flux direction (radial direction);
the binding belt is arranged on the notch, so that the fan-shaped silicon steel sheets are firmly connected together to form an iron core cake body with a stable structure, and the thickness of the binding belt is not more than the depth of the notch;
the epoxy inner cylinder is arranged in the middle through hole of the iron core cake body;
and the cushion blocks are uniformly fixed on the upper surface and the lower surface of the iron core cake body through epoxy casting.
In one embodiment of the present invention, the number of the fan-shaped silicon steel sheets is 30-64.
In an embodiment of the present invention, the upper and lower edges of the outer diameter of the fan-shaped silicon steel sheet are provided with chamfers.
In one embodiment of the present invention, the fan-shaped silicon steel sheet is a high magnetic-permeability oriented silicon steel sheet.
In one embodiment of the present invention, the thickness of the fan-shaped silicon steel sheet is 0.27-0.35mm, and the height thereof is 50-300 mm.
In an embodiment of the present invention, the width of the notch is 30mm, and the depth is 1.5-3 mm.
In one embodiment of the present invention, the binding tape is a gumming alkali-free wax-free laid tape or a packing tape.
In one embodiment of the present invention, the epoxy inner cylinder is an epoxy glass fiber cylinder.
In an embodiment of the present invention, the cushion block is cylindrical, and the cushion block is marble or a ceramic cushion block.
Through the technical scheme, the beneficial effects of the utility model are that:
the utility model has the advantages of low loss, the low noise, the vibration is low, and no office is put overheated etc, has brought the quality assurance for the reliable operation of reactor, brings great value and low carbon benefit for power consumer enterprise.
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 these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a fan-shaped silicon steel sheet;
FIG. 3 is a schematic view of a binding belt for binding and fixing a single fan-shaped silicon steel sheet;
10. the iron core cake comprises an iron core cake body 11, a fan-shaped silicon steel sheet 11a, a notch 11b, a chamfer 12, a cavity 20, a binding belt 30, an epoxy inner cylinder 40 and a cushion block.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 1 to 3, the present invention discloses a paramagnetic iron core cake structure for a reactor, which includes an iron core cake body 10, a binding tape 20, an epoxy inner tube 30, and a cushion block 40.
The iron core cake body 10 is of a disc-shaped structure consisting of a plurality of fan-shaped silicon steel sheets 11 with the same structure and size, the fan-shaped silicon steel sheets 11 are high-permeability oriented silicon steel sheets, the thickness of each fan-shaped silicon steel sheet 11 is 0.27-0.35mm, the thinner the thickness is, the better the thickness is, and the rolling direction is the radial direction; the height is 50-300 mm, generally 80 mm; the number of the fan-shaped silicon steel sheets is 30-64, the scattered shapes of the fan-shaped silicon steel sheets are closely arranged in the round direction, the specific number of the fan-shaped silicon steel sheets can be determined according to actual requirements, and the detailed description is omitted; certainly, the design can be specifically designed according to the inner diameter and the outer diameter of the iron core cake, the fan-shaped arrangement is ensured to be tight in the manufacturing process, the inner shape and the outer shape are circular, the height is flat, and the flatness is controlled within 0.2 mm; a cavity 12 is reserved in the middle of the iron core cake body 10, an epoxy inner cylinder 30 is arranged in the cavity 12, the epoxy inner cylinder 30 is an epoxy glass fiber cylinder, and the epoxy inner cylinder 30 is used for enhancing the strength of the iron core cake and insulating the iron core and the core column screw rod; a notch 11a is formed in the middle of the outer diameter of each fan-shaped silicon steel sheet and used for binding and fixing; each fan-shaped silicon steel sheet is in a paramagnetic direction, namely the rolling direction of the silicon steel sheet is consistent with the main magnetic flux direction, so that the product loss and noise can be reduced; the upper edge and the lower edge of the outer diameter of the fan-shaped silicon steel sheet are provided with chamfers 11b, so that the highest magnetic density of local silicon steel sheets can be reduced; each fan-shaped silicon steel sheet 11 is formed by stacking a plurality of silicon steel sheet assemblies with different lengths (no description is given here for how to stack the silicon steel sheets 11 with the above structure), the silicon steel sheet assemblies with different lengths generally have an arithmetic progression with a step length of 2.9mm to 10mm, the longest sheet generally does not exceed 1000mm, and the shortest sheet generally does not exceed 10 mm.
The binding belt 20 is arranged on the notch 11a, so that the plurality of fan-shaped silicon steel sheets 11 are firmly connected together to form an iron core cake body with a stable structure; the thickness of the binding band 20 is not more than the depth of the notch, so that the stability after binding is improved; the binding band 20 is a gumming alkali-free wax-free dilute weft tape or a packing band which has higher strength than a common weft-free tape.
The cushion block 40 is cylindrical, the cushion block 40 is a marble or ceramic cushion block, and the cushion block 40 is uniformly fixed on the upper and lower surfaces of the iron core cake body 10 through epoxy casting.
According to the application, the paramagnetic iron core cake is solidified by pouring epoxy through vacuum pumping pressure to form the iron core cake with electrical performance, and specific details of how the paramagnetic iron core cake is processed are omitted, so that the content of protection of the application is omitted.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The paramagnetic iron core cake structure for a reactor is characterized by comprising:
the iron core cake body is of a disc-shaped structure consisting of a plurality of fan-shaped silicon steel sheets with the same structure size, a cavity is reserved in the middle of the iron core cake body, each fan-shaped silicon steel sheet is formed by laminating a plurality of silicon steel sheet assemblies with different lengths, a notch is formed in the middle of the outer diameter of each fan-shaped silicon steel sheet, each fan-shaped silicon steel sheet is in a paramagnetic direction, namely the rolling direction of the silicon steel sheets is consistent with the main flux direction;
the binding belt is arranged on the notch, so that the fan-shaped silicon steel sheets are firmly connected together to form an iron core cake body with a stable structure, and the thickness of the binding belt is not more than the depth of the notch;
the epoxy inner cylinder is arranged in the middle through hole of the iron core cake body;
and the cushion blocks are uniformly fixed on the upper surface and the lower surface of the iron core cake body through epoxy casting.
2. The paramagnetic iron core cake structure for a reactor as claimed in claim 1, wherein the number of the silicon steel sheets is 30 to 64.
3. The paramagnetic iron core cake structure for a reactor as claimed in claim 1, wherein the outer diameter of the silicon steel sheet is chamfered at upper and lower edges thereof.
4. The paramagnetic iron core cake structure for a reactor according to claim 1, wherein the fan-shaped silicon steel sheets are high permeability grain-oriented silicon steel sheets.
5. The paramagnetic iron core cake structure for a reactor as claimed in claim 1, wherein the thickness of the fan-shaped silicon steel sheet is 0.27 to 0.35mm and the height thereof is 50 to 300 mm.
6. The paramagnetic iron core cake structure for a reactor according to claim 1, wherein the width of the notch is 30mm and the depth is 1.5 to 3 mm.
7. The paramagnetic iron core cake structure for a reactor as claimed in claim 1, wherein the binding tape is a gumming alkali-free wax-free wefting tape or a packing tape.
8. The paramagnetic iron core cake structure for a reactor according to claim 1, wherein the epoxy inner tube is an epoxy glass fiber tube.
9. The paramagnetic iron core cake structure for a reactor according to claim 1, wherein the spacer is cylindrical and the spacer is a marble or ceramic spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920897022.0U CN210467529U (en) | 2019-06-14 | 2019-06-14 | Paramagnetic iron core cake structure for reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920897022.0U CN210467529U (en) | 2019-06-14 | 2019-06-14 | Paramagnetic iron core cake structure for reactor |
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| CN210467529U true CN210467529U (en) | 2020-05-05 |
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| CN201920897022.0U Active CN210467529U (en) | 2019-06-14 | 2019-06-14 | Paramagnetic iron core cake structure for reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113053650A (en) * | 2021-03-15 | 2021-06-29 | 浙江天际互感器有限公司 | Preparation method of current transformer iron core |
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2019
- 2019-06-14 CN CN201920897022.0U patent/CN210467529U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113053650A (en) * | 2021-03-15 | 2021-06-29 | 浙江天际互感器有限公司 | Preparation method of current transformer iron core |
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