CN109802505B - Electromagnetic coil and manufacturing method thereof - Google Patents
Electromagnetic coil and manufacturing method thereof Download PDFInfo
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- CN109802505B CN109802505B CN201711152870.0A CN201711152870A CN109802505B CN 109802505 B CN109802505 B CN 109802505B CN 201711152870 A CN201711152870 A CN 201711152870A CN 109802505 B CN109802505 B CN 109802505B
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Abstract
The invention provides an electromagnetic coil and a manufacturing method thereof, wherein the electromagnetic coil comprises a stator component, the stator component comprises a stator shell, a stator pole plate, a stator winding and a contact pin, the stator winding comprises a framework and an enameled wire, the enameled wire is wound on the framework, the stator shell, the stator pole plate and the stator winding are assembled into a whole, the framework is provided with a contact pin wiring terminal, and the contact pin is arranged on the contact pin wiring terminal; the electromagnetic coil further comprises a dispensing shell and a first epoxy resin layer, the dispensing shell is mounted on the framework, a pin inserting hole is formed in the dispensing shell, a pin penetrates through the pin inserting hole and is exposed out of the outer surface of the dispensing shell, and the first epoxy resin layer is filled in the dispensing shell; through setting up some glue shells, can pour into the extremely strong epoxy of mobility, can effectively avoid producing the gas pocket, form first epoxy layer through a period of solidification, can effectively protect contact pin wiring end, contact pin and skeleton.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an electromagnetic coil and a manufacturing method thereof.
Background
Referring to fig. 1, the electromagnetic coil in the field of refrigeration and air conditioning includes a stator assembly, where the stator assembly includes a first frame 201, a second frame 202, a pin 101 and a terminal 102, the stator assembly is placed in an injection mold to be directly injection-molded into a plastic package component in the prior art, the injection molding flow channels of the pin 101 and the terminal 102 are very complex, the thickness of the formed plastic package material 30 is very thick and uneven, and an injection molding air hole is easily generated, which affects the performance of the electromagnetic coil.
Disclosure of Invention
The invention provides an electromagnetic coil and a manufacturing method thereof, aiming at the problems that the thickness of a plastic package material injected by pins and wiring ends in the prior art is thick and uneven and air holes exist.
An electromagnetic coil comprises a stator assembly, wherein the stator assembly comprises a stator shell, a stator pole plate, a stator winding and a contact pin, the stator winding comprises a framework and an enameled wire, the enameled wire is wound on the framework, the stator shell, the stator pole plate and the stator winding are assembled into a whole, the framework is provided with a contact pin wiring end, and the contact pin is installed on the contact pin wiring end;
the electromagnetic coil still includes some glue shells and first epoxy layer, some glue shells install in on the skeleton, be provided with the contact pin hole on some glue shells, the contact pin passes the contact pin hole and expose in some glue shell's surface, first epoxy layer fill in some glue shell is interior.
Further, the electromagnetic coil also comprises a plastic package layer arranged on the outer surface of the stator assembly.
Further, the electromagnetic coil further comprises a lead wire component, and the lead wire component is assembled with the contact pin and then fixed through soldering.
Further, the electromagnetic coil also comprises an insulating shell, and the insulating shell is welded with the plastic packaging layer and exposes part of the wire part.
Further, the electromagnetic coil further comprises a coil buckle, and the coil buckle is welded on the plastic packaging layer and the stator winding and is partially positioned in the insulating shell;
the insulating shell is filled with a second epoxy resin layer.
A method of manufacturing an electromagnetic coil, comprising:
preparing a stator shell, a stator pole plate, a framework, an enameled wire and a contact pin;
installing a contact pin in a contact pin hole of the framework;
winding the enameled wire on the framework, and winding and connecting at the bending part of the contact pin to form a contact pin binding post;
then the stator shell and the stator pole plate are arranged to form a stator component;
installing the dispensing shell provided with the pin hole on the framework, so that the pin penetrates through the pin hole and is exposed on the outer surface of the dispensing shell;
and injecting epoxy resin into the dispensing shell, and curing to form a first epoxy resin layer.
Further, after the first epoxy resin layer is formed, the method further includes:
and carrying out plastic package on the outer surface of the stator assembly to form a plastic package layer.
Further, after the plastic package layer is formed, the method further comprises the following steps:
and preparing a lead part, assembling the lead part and the contact pin, and fixing by soldering.
Further, after the lead member and the pin are assembled and fixed by soldering, the method further includes:
preparing an insulating shell;
and welding and fixing the insulating shell and the dispensing shell, and exposing the wire part.
Further, weld the fixed with insulating casing and some glue shell to after exposing the wire part, still include:
preparing a coil buckle, welding the coil buckle on the plastic packaging layer and the stator winding, and positioning part of the coil buckle in the insulating shell;
and injecting epoxy resin into the insulating shell, and forming a second epoxy resin layer after curing.
The order of the steps of the above-described manufacturing method is not exclusive. For example, in one embodiment of the invention, the steps of claim 10 are performed first, and then the contents of claims 8 and 9 are completed in sequence.
The electromagnetic coil and the manufacturing method thereof provided by the invention at least have the following beneficial effects:
(1) through the arrangement of the dispensing shell, the contact pin can be effectively protected, and on the other hand, the dispensing shell can be used as a container for containing epoxy resin, the epoxy resin with extremely high fluidity can be filled and attached to the contact pin wiring end, the contact pin and the framework, and the epoxy resin has extremely high fluidity, so that air holes can be effectively avoided, a first epoxy resin layer is formed after curing for a period of time, the contact pin wiring end, the contact pin and the framework can be effectively protected, and the performance of the electromagnetic coil is improved;
(2) by arranging the dispensing shell, the plastic packaging layer at the position becomes uniform during injection molding, the thickness of the plastic packaging layer is reduced, and the probability of air hole generation is further reduced;
(3) the arrangement of the coil buckle reinforces the plastic package layer and the stator winding, and further improves the reliability of the electromagnetic coil;
(4) epoxy resin is injected into the insulating shell, and a second epoxy resin layer is formed after curing for a period of time, so that the wire part is further effectively protected.
Drawings
Fig. 1 is a schematic diagram of a prior art electromagnetic coil structure.
FIG. 2 is a cross-sectional view of one embodiment of a solenoid provided by the present invention.
FIG. 3 is a cross-sectional view of one embodiment of a stator assembly in the electromagnetic coil provided by the present invention.
Fig. 4 is a cross-sectional view of one embodiment of the assembly of the stator assembly and the dispensing housing of the solenoid provided by the present invention.
Fig. 5 is a perspective view of an embodiment of a stator assembly in the electromagnetic coil provided by the present invention.
Fig. 6 is a schematic structural diagram of an embodiment of a potting compound housing in an electromagnetic coil provided by the present invention.
Fig. 7 is a perspective view of an embodiment of the assembly of the stator assembly and the dispensing housing of the solenoid provided by the invention.
Fig. 8 is a schematic diagram of the electromagnetic coil provided by the invention after the stator assembly is molded.
Fig. 9 is a schematic view of the assembly of the lead member in the electromagnetic coil provided by the present invention.
Fig. 10 is a schematic structural diagram of an embodiment of an insulating housing in an electromagnetic coil provided by the present invention.
Fig. 11 is a schematic view illustrating the assembly of an insulating housing in the electromagnetic coil provided by the present invention.
Fig. 12 is a schematic structural diagram of an embodiment of a coil clip in the electromagnetic coil provided by the present invention.
Fig. 13 is an assembly view of a coil clip in the electromagnetic coil provided by the present invention.
FIG. 14 is a perspective view of one embodiment of a solenoid provided by the present invention.
Reference numerals: 1-a stator assembly; 101-a stator housing; 102-a stator plate; 103-stator windings; 104-pin; 1031-skeleton; 1032-enameled wire; 1033-pin slots of the backbone; 2-dispensing the shell; 201-pin holes; 3-a first epoxy layer; 4-plastic packaging layer; 5-a wire member; 6-an insulating housing; 7-coil buckling; 8-second epoxy layer.
Detailed Description
The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
Example one
Referring to fig. 2 to 7, the present embodiment provides an electromagnetic coil, including a stator assembly 1, the stator assembly 1 includes a stator housing 101, a stator plate 102, a stator winding 103, and a pin 104, the stator winding 103 includes a framework 1031 and an enameled wire 1032, the enameled wire 1032 is wound on the framework 1031 and the pin, the stator housing 101, the stator plate 102, and the stator winding 103 are assembled into a whole, the framework 1031 is provided with a pin slot 1033, and the pin 104 is installed in the pin slot 1033.
The electromagnetic coil further comprises a dispensing shell 2 and a first epoxy resin layer 3, the dispensing shell 2 is mounted on the framework 1031, a pin hole 201 is formed in the dispensing shell 2, the pin 104 penetrates through the pin hole 201 and is exposed on the outer surface of the dispensing shell 2, and the first epoxy resin layer 3 is filled in the dispensing shell 2.
Specifically, after stator module 1 is assembled, pass the contact pin hole 201 on the point glue shell 2 with contact pin 104 and assemble, the container that holds epoxy is equivalent to some glue shell 2 after the assembly, later pour into some glue shell 2 with the extremely strong epoxy of mobility in, epoxy can fill whole some glue shell and adhere to in contact pin groove 1033, skeleton 1031 and contact pin 104 around, because epoxy's mobility is extremely strong, can not produce the gas pocket, through the solidification of a period of time, form first epoxy layer 3.
The solenoid that this embodiment provided, through setting up some glue shells, can effectively protect the contact pin on the one hand, on the other hand is as the container that holds epoxy, can pour into the extremely strong epoxy of mobility, attach to the contact pin wiring end, around contact pin and the skeleton, because epoxy has extremely strong mobility, can effectively avoid producing the gas pocket, solidification through a period forms first epoxy layer, can effectively protect contact pin wiring end, contact pin and skeleton, improve the solenoid performance.
Further, referring to fig. 8, the electromagnetic coil provided in this embodiment further includes a molding layer 4 disposed on an outer surface of the stator assembly.
After assembly, the stator assembly is subjected to plastic package to form a plastic package layer 4, and the plastic package layer at the position becomes uniform when injection molding is carried out by arranging the glue dispensing shell, so that the thickness of the plastic package layer is reduced, and the probability of air hole generation is further reduced.
In a preferred embodiment, the dispensing casing is made of the same material as the plastic sealing layer.
Further, referring to fig. 9, the electromagnetic coil of the present embodiment further includes a lead member 5, and the lead member 5 is fixed to the pin 104 by soldering after being assembled.
The electrical connection of the solenoid to the other components is made through the wire member 5 and the contact pin 104.
Further, referring to fig. 10 to 11, the electromagnetic coil provided in this embodiment further includes an insulating housing 6, the insulating housing 6 is welded to the dispensing housing 2, and a portion of the lead member 5 is exposed, and a material of the insulating housing 6 is the same as that of the molding compound layer 4.
The insulating housing is used for protecting the wire component.
Further, referring to fig. 12 to 14, the electromagnetic coil provided by the present embodiment further includes a coil clip 7, the coil clip 7 is welded on the plastic-sealed layer 4 and the stator winding 103 and is partially located in the insulating housing 6;
the insulating case 6 is filled with a second epoxy resin layer 8.
The arrangement of the coil buckle reinforces the plastic package layer and the stator winding, and further improves the reliability of the electromagnetic coil.
After the coil buckles are welded, epoxy resin is injected into the insulating shell, a second epoxy resin layer is formed after curing for a period of time, and the wire part is further effectively protected.
In summary, the electromagnetic coil provided by the embodiment at least has the following beneficial effects:
(1) through the arrangement of the dispensing shell, the contact pin can be effectively protected, and on the other hand, the dispensing shell can be used as a container for containing epoxy resin, the epoxy resin with extremely high fluidity can be filled and attached to the contact pin wiring end, the contact pin and the framework, and the epoxy resin has extremely high fluidity, so that air holes can be effectively avoided, a first epoxy resin layer is formed after curing for a period of time, the contact pin wiring end, the contact pin and the framework can be effectively protected, and the performance of the electromagnetic coil is improved;
(2) by arranging the dispensing shell, the plastic packaging layer at the position becomes uniform during injection molding, the thickness of the plastic packaging layer is reduced, and the probability of air hole generation is further reduced;
(3) the arrangement of the coil buckle reinforces the plastic package layer and the stator winding, and further improves the reliability of the electromagnetic coil;
(4) epoxy resin is injected into the insulating shell, and a second epoxy resin layer is formed after curing for a period of time, so that the wire part is further effectively protected.
Example two
Referring to fig. 2 to 7, the present embodiment provides a method of manufacturing an electromagnetic coil, including:
preparing a stator shell 101, a stator plate 102, a framework 1031, an enameled wire 1032 and a pin 104;
winding the enameled wire 1032 on the framework 1031 to form a stator winding 103;
mounting pins 104 to pin terminals 1033 of backbone 1031;
assembling a stator shell 101, a stator pole plate 102 and a stator winding 103 to form a stator assembly 1;
installing the dispensing casing 2 provided with the pin hole 201 on the stator casing 101, so that the pin 104 passes through the pin hole 201 and is exposed on the outer surface of the dispensing casing 2;
and injecting epoxy resin into the dispensing shell 2, and forming a first epoxy resin layer 3 after curing.
Specifically, after stator module 1 is assembled, pass the contact pin hole 201 on the point glue shell 2 with contact pin 104 and assemble, the container that holds epoxy is equivalent to some glue shell 2 after the assembly, later pour into some glue shell 2 with the extremely strong epoxy of mobility in, epoxy can fill whole some glue shell and adhere to contact pin wiring end 1033, skeleton 1031 and contact pin 104 are around, because epoxy's mobility is extremely strong, can not produce the gas pocket, through the solidification of a period of time, form first epoxy layer 3.
The manufacturing method of solenoid that this embodiment provided, through setting up the point and gluing the shell, can effectively protect the contact pin on the one hand, on the other hand is as the container that holds epoxy, can pour into the extremely strong epoxy of mobility, adhere to the contact pin wiring end, around contact pin and the skeleton, because epoxy has extremely strong mobility, can effectively avoid producing the gas pocket, solidification through a period forms first epoxy layer, can be to the contact pin wiring end, contact pin and skeleton carry out effective protection, improve the solenoid performance.
Further, referring to fig. 8, after the first epoxy resin layer is formed, the method further includes:
and performing plastic package on the outer surface of the stator assembly 1 to form a plastic package layer 4.
After assembly, the stator assembly is subjected to plastic package to form a plastic package layer 4, and the plastic package layer at the position becomes uniform when injection molding is carried out by arranging the glue dispensing shell, so that the thickness of the plastic package layer is reduced, and the probability of air hole generation is further reduced.
Further, referring to fig. 9, after the molding layer 4 is formed, the method further includes:
the lead member 5 is prepared, and the lead member 5 is assembled with the pin 104 and fixed by soldering.
Further, referring to fig. 10 to 11, after the lead member 5 is assembled with the pin 104 and fixed by soldering, the method further includes:
preparing an insulating shell 6;
the insulating housing 6 and the dispensing housing 2 are welded and fixed, and the lead member 5 is exposed.
Further, referring to fig. 12 to 14, after the insulating housing 6 and the dispensing housing 2 are fixed by welding and the wire member 5 is exposed, the method further includes:
preparing a coil buckle 7, welding the coil buckle 7 on the plastic packaging layer 4 and the stator winding 103, and positioning part of the coil buckle 7 in the insulating shell 6;
epoxy resin is injected into the insulating housing 6 and cured to form a second epoxy resin layer 8.
The arrangement of the coil buckle reinforces the plastic package layer and the stator winding, and further improves the reliability of the electromagnetic coil.
After the coil buckles are welded, epoxy resin is injected into the insulating shell, a second epoxy resin layer is formed after curing for a period of time, and the wire part is further effectively protected.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A method of manufacturing an electromagnetic coil, comprising:
preparing a stator shell, a stator pole plate, a framework, an enameled wire and a contact pin;
installing a contact pin in a contact pin hole of the framework;
winding the enameled wire on the framework, and winding and connecting at the bending part of the contact pin to form a contact pin binding post;
then the stator shell and the stator pole plate are arranged to form a stator component;
installing the dispensing shell provided with the pin hole on the framework, so that the pin penetrates through the pin hole and is exposed on the outer surface of the dispensing shell;
injecting epoxy resin into the dispensing shell, and forming a first epoxy resin layer after curing;
after the first epoxy resin layer is formed, the method further comprises the following steps:
and carrying out plastic package on the outer surface of the stator assembly to form a plastic package layer.
2. The method of manufacturing an electromagnetic coil according to claim 1, further comprising:
and preparing a lead part, assembling the lead part and the contact pin, and fixing by soldering.
3. The method of manufacturing an electromagnetic coil according to claim 1, further comprising:
preparing an insulating shell;
and welding and fixing the insulating shell and the plastic packaging layer, and exposing the wire part.
4. The method of manufacturing an electromagnetic coil according to claim 3, further comprising:
preparing a coil buckle, welding the coil buckle on a stator shell, and positioning part of the coil buckle in the insulating shell;
and injecting epoxy resin into the insulating shell, and forming a second epoxy resin layer after curing.
5. An electromagnetic coil, characterized in that the electromagnetic coil is produced by the method for producing an electromagnetic coil according to any one of claims 1 to 4;
the electromagnetic coil comprises a stator assembly, the stator assembly comprises a stator shell, a stator pole plate, a stator winding and a contact pin, the stator winding comprises a framework and an enameled wire, the enameled wire is wound on the framework, the stator shell, the stator pole plate and the stator winding are assembled into a whole, the framework is provided with a contact pin wiring end, and the contact pin is installed on the contact pin wiring end;
the electromagnetic coil further comprises a dispensing shell and a first epoxy resin layer, the dispensing shell is mounted on the framework, a pin inserting hole is formed in the dispensing shell, the pin penetrates through the pin inserting hole and is exposed out of the outer surface of the dispensing shell, and the first epoxy resin layer is filled in the dispensing shell;
the electromagnetic coil further comprises a plastic package layer arranged on the outer surface of the stator assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711152870.0A CN109802505B (en) | 2017-11-17 | 2017-11-17 | Electromagnetic coil and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711152870.0A CN109802505B (en) | 2017-11-17 | 2017-11-17 | Electromagnetic coil and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN109802505A CN109802505A (en) | 2019-05-24 |
| CN109802505B true CN109802505B (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711152870.0A Active CN109802505B (en) | 2017-11-17 | 2017-11-17 | Electromagnetic coil and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112151229B (en) * | 2019-06-28 | 2022-06-17 | 浙江盾安禾田金属有限公司 | Electromagnetic coil device |
| CN112792203B (en) * | 2020-12-23 | 2021-11-09 | 华中科技大学 | Axial reinforcement method and device for electromagnetic forming coil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11346469A (en) * | 1998-05-29 | 1999-12-14 | Minebea Co Ltd | Stepping motor with speed-changing mechanism |
| CN102916514A (en) * | 2011-08-04 | 2013-02-06 | 浙江三花股份有限公司 | Coil part and manufacturing method therefor |
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2017
- 2017-11-17 CN CN201711152870.0A patent/CN109802505B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11346469A (en) * | 1998-05-29 | 1999-12-14 | Minebea Co Ltd | Stepping motor with speed-changing mechanism |
| CN102916514A (en) * | 2011-08-04 | 2013-02-06 | 浙江三花股份有限公司 | Coil part and manufacturing method therefor |
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