CN108711507A - A kind of production method of current-limiting reactor - Google Patents

A kind of production method of current-limiting reactor Download PDF

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Publication number
CN108711507A
CN108711507A CN201810486660.3A CN201810486660A CN108711507A CN 108711507 A CN108711507 A CN 108711507A CN 201810486660 A CN201810486660 A CN 201810486660A CN 108711507 A CN108711507 A CN 108711507A
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CN
China
Prior art keywords
pour mass
coil
interior
current
outer
Prior art date
Application number
CN201810486660.3A
Other languages
Chinese (zh)
Inventor
张源泉
苏中德
Original Assignee
无锡应达工业有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 无锡应达工业有限公司 filed Critical 无锡应达工业有限公司
Priority to CN201810486660.3A priority Critical patent/CN108711507A/en
Publication of CN108711507A publication Critical patent/CN108711507A/en

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06Coil winding
    • H01F41/064Winding non-flat conductive wires, e.g. rods, cables or cords
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12Insulating of windings
    • H01F41/122Insulating between turns or between winding layers
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12Insulating of windings
    • H01F41/125Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12Insulating of windings
    • H01F41/127Encapsulating or impregnating

Abstract

The present invention discloses a kind of production method of current-limiting reactor, includes the following steps:Coil winding step:Hollow copper tubing is turned into the coil for current-limiting reactor on coil winding mould;Interior pour mass pours into a mould step:The coil is positioned to the center of interior pour mass casting mold;Pour mass casting mold in magnetic ball and binder injection will be increased, the coil will be coated;Wait for that binder is dried in the interior cast mould, interior pour mass demoulds after the interior pour mass in-mold molding, by the interior pour mass from the interior pour mass casting mold;Outer pour mass pours into a mould step:By the interior pour mass, it is positioned at the center of outer pour mass casting mold;PU glue is injected into the outer pour mass casting mold, internal pour mass is coated;After PU adhesive curings become outer pour mass, the outer pour mass is demoulded from the outer cast mould, obtains current-limiting reactor.

Description

A kind of production method of current-limiting reactor

Technical field

The present invention relates to a kind of production methods of current-limiting reactor of field of power electronics.

Background technology

Current-limiting reactor is electric components important in power electronic circuits.There are two its main functions:Reduce delay Current surge when system is by electricity or the system failure makes abnormal current disconnect electricity before reaching damage semiconductor components and devices numerical value Road;Independent role or with capacitor filter collective effect, limit power grid in higher hamonic wave.Current current-limiting reactor is main It experienced three generations:

If first generation current-limiting reactor only have the dried layer solenoid coil that is turned to by hollow copper tubing at coil, such as scheme Shown in 1.

Second generation current-limiting reactor pours into a mould the pour mass of package epoxy resin in coil outer, increases product parameters and stablizes Property, insulation performance and fixed protection coil.

Third generation current-limiting reactor replaces the pour mass of epoxy resin using the pour mass of PU glue, except with second generation current limliting Outside all advantages of reactor, second generation current-limiting reactor cold cracking problem is also solved.

Second generation current-limiting reactor and third generation current-limiting reactor are as shown in Figure 2.

The manufacturing method of current current-limiting reactor, includes the following steps:According to design requirement, the sky of dimension is selected Heart copper pipe;Insulating tape is wrapped up on hollow copper tubing surface, carries out insulation processing;According to design requirement, winding mould coiling line is selected Circle;After completing coil winding, coil is demoulded from winding mould, installation connecting copper bar carries out parameter testing;It is wanted according to design It asks, selects casting mold, carry out the cast of pour mass;After injection body curing molding to be poured, product is demoulded from casting mold;Root According to design requirement, parameter testing is carried out;Recording parameters, packaging, storage.

Invention content

The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of production method of current-limiting reactor, While ensureing current-limiting reactor inductance value, coil turn is reduced, small product size reduces, and resistance is reduced, and energy consumption is reduced.

Realizing a kind of technical solution of above-mentioned purpose is:A kind of production method of current-limiting reactor, includes the following steps:

Coil winding step:Hollow copper tubing is turned into the coil for current-limiting reactor on coil winding mould;

Interior pour mass pours into a mould step:The coil is positioned to the center of interior pour mass casting mold;Magnetic ball will be increased and glued Pour mass casting mold in agent injection is tied, the coil is coated;Wait for that binder is dried in the interior cast mould, it is interior Pour mass demoulds after the interior pour mass in-mold molding, by the interior pour mass from the interior pour mass casting mold;

Outer pour mass pours into a mould step:By the interior pour mass, it is positioned at the center of outer pour mass casting mold;PU glue is noted Enter the outer pour mass casting mold, internal pour mass is coated;After PU adhesive curings become outer pour mass, described will outside it pour Injection body is demoulded from the outer cast mould, obtains current-limiting reactor.

Further, the binder employed in interior pour mass cast step is PU glue.

Further, before coil winding step, hollow copper tubing is wound with insulating tape.

Further, bridging copper bar is installed at the top of the coil in coil winding step.

Further, interior pour mass pour into a mould step before, also coil insulate fixating shape step, coil insulate fixating shape step In, the coil ties up sizing by the insulating wrapping band being arranged around the coil circumference.

Further, in coil insulation fixating shape step, the coil after tying up sizing winds insulation film, is formed Coat the insulating thin layer of entire coil.

Further, in coil insulation fixating shape step, insulated paint is coated in the outer surface of the insulating thin layer.

Further, the outer pour mass in the outer cast mould after demoulding, in the current-limiting reactor Heart grafting runs through the fiberglass pipe of the interior pour mass and the outer pour mass.

The technical solution for using a kind of production method of current-limiting reactor of the present invention, includes the following steps:Coil around Step processed:Hollow copper tubing is turned into the coil for current-limiting reactor on coil winding mould;Interior pour mass pours into a mould step:It will The coil is positioned at the center of interior pour mass casting mold;Pour mass casting mold in magnetic ball and binder injection will be increased, it is right The coil is coated;Wait for that binder is dried in the interior cast mould, interior pour mass is in the interior cast mould After molding, the interior pour mass is demoulded from the interior pour mass casting mold;Outer pour mass pours into a mould step:It interior is poured described Injection body is positioned at the center of outer pour mass casting mold;PU glue is injected into the outer pour mass casting mold, internal pour mass into Row cladding;After PU adhesive curings become outer pour mass, the outer pour mass is demoulded from the outer cast mould, is limited Flow reactor.It has the technical effect that:Current-limiting reactor is produced with the production method, can ensure the same of current-limiting reactor inductance value When, coil turn is reduced, small product size reduces, and resistance is reduced, and energy consumption is reduced.

Description of the drawings

Fig. 1 is the structural schematic diagram of the coil of the stream reactor of the present invention.

Fig. 2 is the structural schematic diagram of the current-limiting reactor of the prior art.

The structural schematic diagram for the current-limiting reactor that Fig. 3 is produced for a kind of production method of current-limiting reactor of the present invention.

Specific implementation mode

Referring to Fig. 3, the present inventor in order to preferably understand technical scheme of the present invention, is led to below Specifically embodiment is crossed, and is described in detail in conjunction with attached drawing:

Referring to Fig. 3, a kind of current-limiting reactor of the present invention, including coil 1, and it is coaxial with coil 1, for coating The pour mass 2 of coil 1.

Coil 1 is formed by hollow copper tubing coiling, and for coil 1 while generating inductance, cooling medium is inside hollow copper tubing It flows through, coil 1 is cooled down.

Coil 1 in the present embodiment is 6 × 4 circle coils, i.e. coil 1 is made of four helical layer pipeline circles, per helical layer pipe The number of turns of coil is six circles, wherein the toroidal winding connection bridging copper bar 4 of top layer, makes current-limiting reactor 1 and externally fed Line conduction.The other forms such as certain coil 1 or 6 × 6 circles.

In order to ensure that the insulation between coil 1 and pour mass 2, the outer circle wall of 1 hollow copper tubing of coiling are wound with absolutely Edge adhesive tape.

In order to carry out shaping to coil 1 and further insulate to coil 1, coil 1 is arranged by surrounding 1 circumference of coil Insulating wrapping band tie up sizing, be that form cladding whole in coil 1 and by the insulation film of the circumference winding around coil 1 The outer surface of the insulating thin layer of a coil 1, insulating thin layer is coated with insulated paint.

A kind of pour mass 2 of current-limiting reactor of the present invention, includes the interior pour mass 21 and outer pour mass 22 of coaxial arrangement.

Interior pour mass 21 is more than the outer diameter of coil 1 for coating coil 1, the outer diameter of interior pour mass 21, interior pour mass 21 Internal diameter is less than the internal diameter of coil 1, and the top surface of interior pour mass 21 is higher than the top surface of coil 1, and the bottom surface of interior pour mass 21 is less than coil 1 Bottom surface, formed to the integral coating of coil 1.

Interior pour mass 21 is made of being bonded by increasing magnetic ball.Interior pour mass 21 is to increase magnetic ball using the reason of increasing magnetic ball Grain size is generally 1000~2500 μm, has the bigger grain size than Magnaglo, and the narrowly distributing of grain size, therefore increasing magnetic ball can Being uniformly distributed without reuniting in interior pour mass 21, forms continuous matrix, to ensure 21 electromagnetic performance of interior pour mass Homogeneity, therefore the parametric stability of current-limiting reactor improves.The rigidity of interior pour mass 21 made of being bonded simultaneously by increasing magnetic ball Height, to effective protection coil 1.

The top surface of outer pour mass 22 is higher than the top surface of interior pour mass 21, and the bottom surface of outer pour mass 22 is less than interior pour mass 21 Bottom surface, the outer diameter of outer pour mass 22 are more than the outer diameter of interior pour mass 21, thus by 21 integral coating of interior pour mass in outer pour mass In 22.Outer pour mass 22 is made of being poured into a mould by PU glue.Outer pour mass 22 uses PU glue, has the insulation as epoxy resin Performance, while in turn ensuring the safety of current-limiting reactor.

Meanwhile it will to increase the binder of magnetic ball be also PU glue for bonding in interior pour mass 21.It is using the reason of PU glue: On the one hand it can enhance the interface binding power between interior pour mass 21 and outer pour mass 22, ensure interior pour mass 21 and outer pour mass 22 become an entirety, ensure that interior pour mass 21 and outer pour mass 22 do not crack.The top surface of outer pour mass 22 is higher than interior cast The top surface of body 21, the bottom surface of outer pour mass 22 are less than the bottom surface of interior pour mass 21, and the outer diameter of outer pour mass 22 is more than interior pour mass The design of 21 outer diameter can make part PU glue penetrate into interior pour mass 21 during outer 22 moulding by casting of pour mass, thus into One step makes interior pour mass 21 and outer pour mass 22 be cured as an entirety.Internal interior pour mass 21 is for increasing current-limiting reactor Inductance value, and outer pour mass 22 is used to ensure the insulation performance of current-limiting reactor.It is thus achieved that current-limiting reactor usability It can be with the perfect unity of safety.

In the present embodiment, the internal diameter of outer pour mass 22 is equal to the internal diameter of interior pour mass 21.The center of current-limiting reactor is equipped with Through the fiberglass pipe 3 of outer pour mass 22 and interior pour mass 21, it is further ensured that a kind of peace of current-limiting reactor of the present invention Quan Xing.

A kind of current-limiting reactor of the present invention, by increasing the interior pour mass 21 made of increasing magnetic ball bonding, in current limliting electricity The inside of anti-device increases magnetic field, to promote the inductance value of current-limiting reactor, compensates for and reduces cored screw pipeline ring layer number and every Layer cored screw pipe coil turn caused by influence, therefore current-limiting reactor in cored screw pipeline ring layer number and every layer of sky Heart toroidal winding the number of turns reduce under the premise of, the inductance value of product goes up not down, and volume smaller and be easily installed.Simultaneously Since the hollow toroidal winding number of plies in coil 1 and every layer of cored screw pipe coil turn are reduced, the copper pipe of coiling Length is reduced, and the manufacturing cost of product reduces, and product efficiency improves, and economizes on resources;Product resistance is small, and fever is few, and loss is small, drop Low energy consumption.A kind of current limliting of current-limiting reactor of the present invention, filter function are more preferable simultaneously, and properties of product can be more stable.

A kind of production method of current-limiting reactor of the present invention includes the following steps:

Coil winding step:By the coil 1 of hollow copper tubing coiling current-limiting reactor, the present embodiment on coil winding mould Coil 1 includes four layers of cored screw pipeline circle, and the number of turns of every layer of cored screw pipeline circle is six circles.Simultaneously in top Installation bridging copper bar 4 on cored screw pipeline circle, the performance test for carrying out coil, and for by final current-limiting reactor Device is connected to supply line.

In order to ensure 1 External Insulation of coil, before the coil of coiling current-limiting reactor, first in the outer circle wall of hollow copper tubing Wind insulating tape.

Coil insulation fixating shape step:

Coil 1 is demoulded from coil winding mould, coil 1 is tied by the insulating wrapping band being arranged around 1 circumference of coil Prick sizing.

The circumference of coil 1 after tying up sizing winds insulation film, is formed in coil 1 and coats the exhausted of entire coil 1 Edge film layer coats insulated paint in the outer surface of insulating thin layer.

Interior pour mass pours into a mould step:

By the coil 1 by insulation sizing, it is positioned at the center of interior pour mass casting mold.

After PU glue caking agents are mixed with increasing magnetic ball, interior pour mass casting mold is injected, coil 1 is coated.

Wait for that binder is dried in interior cast mould, interior pour mass 21 is after interior pour mass in-mold molding, by interior cast Body 21 is demoulded from interior pour mass casting mold.

In the present embodiment, the outer diameter of interior pour mass 21 is more than the outer diameter of coil 1, and the internal diameter of interior pour mass 21 is less than coil 1 Internal diameter, the top surface of interior pour mass 21 is higher than the top surface of coil 1, and the bottom surface of interior pour mass 21 is less than the bottom surface of coil 1, is formed pair The integral coating of coil 1.

Outer pour mass pours into a mould step:

By interior pour mass 21, it is positioned at the center of outer pour mass casting mold;

PU glue is injected into outer pour mass casting mold, internal pour mass 21 is coated.

It waits for that PU adhesive curings become outer pour mass 22, and with after the pour mass 2 of 21 being combined as a whole of interior pour mass, will pour into a mould Body 2 is demoulded from outer cast mould, obtains the finished product of current-limiting reactor.

Current-limiting reactor is tested for the property by bridging copper bar 4.

Finally in the center grafting fiberglass pipe 3 of current-limiting reactor, ensure the safety of product.

Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention, And be not used as limitation of the invention, as long as in the spirit of the present invention, the change to embodiment described above Change, modification will all be fallen within the scope of claims of the present invention.

Claims (8)

1. a kind of production method of current-limiting reactor, includes the following steps:
Coil winding step:Hollow copper tubing is turned into the coil for current-limiting reactor on coil winding mould;
Interior pour mass pours into a mould step:The coil is positioned to the center of interior pour mass casting mold;Magnetic ball and binder will be increased Pour mass casting mold, coats the coil in injection;Wait for that binder is dried in the interior cast mould, interior cast Body demoulds after the interior pour mass in-mold molding, by the interior pour mass from the interior pour mass casting mold;
Outer pour mass pours into a mould step:By the interior pour mass, it is positioned at the center of outer pour mass casting mold;PU glue is injected into institute Outer pour mass casting mold is stated, internal pour mass is coated;After PU adhesive curings become outer pour mass, by the outer pour mass It is demoulded from the outer cast mould, obtains current-limiting reactor.
2. a kind of production method of current-limiting reactor according to claim 1, it is characterised in that:Interior pour mass pours into a mould step Employed in binder be PU glue.
3. a kind of production method of current-limiting reactor according to claim 1, it is characterised in that:Before coil winding step, Hollow copper tubing is wound with insulating tape.
4. a kind of production method of current-limiting reactor according to claim 1, it is characterised in that:In coil winding step The top installation bridging copper bar of the coil.
5. a kind of production method of current-limiting reactor according to claim 1, it is characterised in that:It pours into a mould and walks in interior pour mass Before rapid, also coil insulation fixating shape step, coil insulate in fixating shape step, and the coil is arranged by surrounding the coil circumference Insulating wrapping band tie up sizing.
6. a kind of production method of current-limiting reactor according to claim 5, it is characterised in that:Coil insulation fixating shape step In, the coil after tying up sizing winds insulation film, forms the insulating thin layer for coating entire coil.
7. a kind of production method of current-limiting reactor according to claim 6, it is characterised in that:Coil insulation fixating shape step In, coat insulated paint in the outer surface of the insulating thin layer.
8. a kind of production method of current-limiting reactor according to claim 1, it is characterised in that:The outer pour mass is from institute It states after being demoulded in outer cast mould, runs through the interior pour mass and the outer cast in the center grafting of the current-limiting reactor The fiberglass pipe of body.
CN201810486660.3A 2018-05-17 2018-05-17 A kind of production method of current-limiting reactor CN108711507A (en)

Priority Applications (1)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102737802A (en) * 2012-07-02 2012-10-17 浙江嘉康电子股份有限公司 Coil and magnetic powder integrated inductor and manufacturing method thereof
CN103098153A (en) * 2010-09-13 2013-05-08 住友电气工业株式会社 Reactor and manufacturing method for reactor
CN103700479A (en) * 2013-12-31 2014-04-02 无锡应达工业有限公司 Manufacturing process of high-power short-circuit protection reactor
CN106415750A (en) * 2014-06-24 2017-02-15 株式会社自动网络技术研究所 Core member, reactor, and method for manufacturing core member
CN107112115A (en) * 2015-01-13 2017-08-29 株式会社自动网络技术研究所 Iron core member, the manufacture method of iron core member and reactor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103098153A (en) * 2010-09-13 2013-05-08 住友电气工业株式会社 Reactor and manufacturing method for reactor
CN102737802A (en) * 2012-07-02 2012-10-17 浙江嘉康电子股份有限公司 Coil and magnetic powder integrated inductor and manufacturing method thereof
CN103700479A (en) * 2013-12-31 2014-04-02 无锡应达工业有限公司 Manufacturing process of high-power short-circuit protection reactor
CN106415750A (en) * 2014-06-24 2017-02-15 株式会社自动网络技术研究所 Core member, reactor, and method for manufacturing core member
CN107112115A (en) * 2015-01-13 2017-08-29 株式会社自动网络技术研究所 Iron core member, the manufacture method of iron core member and reactor

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