CN1313611A - Moulded electromagnetic coils and manufacture thereof - Google Patents
Moulded electromagnetic coils and manufacture thereof Download PDFInfo
- Publication number
- CN1313611A CN1313611A CN01111490A CN01111490A CN1313611A CN 1313611 A CN1313611 A CN 1313611A CN 01111490 A CN01111490 A CN 01111490A CN 01111490 A CN01111490 A CN 01111490A CN 1313611 A CN1313611 A CN 1313611A
- Authority
- CN
- China
- Prior art keywords
- bobbin
- moulded
- electromagnetic coils
- template
- coil
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000000463 material Substances 0.000 claims abstract description 43
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 230000001154 acute effect Effects 0.000 claims abstract description 14
- 239000004793 Polystyrene Substances 0.000 claims description 17
- 239000003507 refrigerant Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 230000004927 fusion Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 3
- 239000012778 molding material Substances 0.000 abstract 5
- 238000007789 sealing Methods 0.000 description 9
- 101000905241 Mus musculus Heart- and neural crest derivatives-expressed protein 1 Proteins 0.000 description 8
- 239000003822 epoxy resin Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 229920006337 unsaturated polyester resin Polymers 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 4
- 239000004416 thermosoftening plastic Substances 0.000 description 4
- 238000004078 waterproofing Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
- H01F27/325—Coil bobbins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus 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
- H01F41/02—Apparatus 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
- H01F41/04—Apparatus 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
- H01F41/12—Insulating of windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F2007/068—Electromagnets; Actuators including electromagnets using printed circuit coils
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnets (AREA)
- Magnetically Actuated Valves (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Press Drives And Press Lines (AREA)
- Insulating Of Coils (AREA)
Abstract
The presetn invention is to integrate a bobbin 2 with a molding 4 in a molded electromagnetic coil. In a molded electromagnetic coil, a PS resin is used as a molding material 4. With a bobbin 2 also formed of the same material as the molding material, an acute protruded part A and a recessed part B are formed on and in the bobbin 2. When the molding material is injected into the recessed part B, the protruded part A is molten and the bobbin 2 is integrally encased by the molding material 4 to constitute a molding and hangs together with the molding material 4.
Description
The present invention relates to solenoid as the drive source of electromagnetically operated valve or valve with electrically motorized operation, more particularly, relate to moulded electromagnetic coils, wherein solenoid is provided with the template that synthetic resin makes (object that promptly adopts mold process to produce), in order to waterproof ground around around; And the method for producing described thing.
Usually, in the electric refrigerator of using refrigerant cycles, adopt electromagnetic valve or electronic rotary control valve flow velocity with control refrigerant.
Under these circumstances, electromagnetic valve or electronic rotary control valve usually are placed in the highly moist atmosphere, therefore, adopt water-proofing treatment as the solenoid of the drive source of electromagnetic valve or electronic rotary control valve, to prevent the decline of its electrical property.
For example, the step that comprises of known this mold process has: the bobbin that will be wound with coil is arranged in the moulded suitcase; To inject moulded suitcase as the epoxy resin or the unsaturated polyester resin of mould material (promptly using the material of the object of mold process production); And be heated or it is ignored, so that solidify and mold pressing epoxy resin or unsaturated polyester resin.
When epoxy resin or unsaturated polyester resin during as mould material, because epoxy resin or unsaturated polyester resin are heat reactive resins, and be different from metal parts such as stator and shell by the mould material that resin material constitutes, when effect has thermal shock, template causes the decreasing insulating of moulded electromagnetic coils owing to the difference of thermal coefficient of expansion is easy to cracking.In addition, when the bobbin that is wound with coil is made by unsaturated polyester resin, and mould material both can not bond together when being epoxy resin because the both is a heat reactive resin.Therefore, when moulded electromagnetic coils was used for highly moist atmosphere for a long time, its electrical property descended probably.
In above-mentioned situation, template and be wound with imperfect bonding between the bobbin of coil, and thermal coefficient of expansion is different mutually, therefore, separates mutually with the bobbin that is wound with coil even small machinery or hot vibrations also can cause template.Be unsuitable for the valve of control refrigerant flow speed in the refrigerant cycles by this solenoid of above-mentioned manufacturing, because it is arranged in the highly moist atmosphere.
Therefore the objective of the invention is to overcome the above problems, the method that proposes a kind of moulded electromagnetic coils and produce described thing, wherein the polystyrene resin of crystalline state (after this being called the PS resin) is used as mould material, like this, moulding material and be wound with between the bobbin of coil bonding and improve greatly, the suitable part of bobbin, particularly the outer rounded ends of the flange section of bobbin is made into acute angle, thereby the described part of bobbin can be fused into mould material when injecting mould material, and bobbin is provided with cavity, thereby template can encase bobbin, and bobbin and template are together with each other.
For reaching above purpose, the present invention proposes a kind of moulded electromagnetic coils, it comprises bobbin and centers on bobbin and the coil that twines, wherein coil have in the following manner around coil be provided with, by the template that crystalline state PS resin constitutes, promptly moulded electromagnetic coils adopts coil to be formed by the mould material mold pressing as insert.
Bobbin is by making with the mould material identical materials, bobbin is provided with acute angle protrusion and cavity, thus protrusion fusion when injecting mould material, and allow mould material to enter cavity to freeze solidly on wherein, thereby bobbin is encased by template, and combines with template.
Moulded electromagnetic coils constitutes the driver of motor-operated control valve, in order to the flow velocity of refrigerant in the control refrigerant cycles.
Moulded electromagnetic coils constitutes the directly solenoid of effect needle-valve, in order to the flow velocity of refrigerant in the control refrigerant cycles.
The present invention also proposes to produce the method for moulded electromagnetic coils, and the step that this method comprises has: around the bobbin winding around; The template of constituting for coil in the following manner around the coil equipment by crystalline state PS resin, be moulded electromagnetic coils use coil as insert with in addition mold pressing of mould material, it is characterized in that, form in the acute angle protrusion fusion when injecting mould material on the bobbin, and mould material is allowed to enter the cavity that forms on the bobbin, and freeze solidly on wherein, thereby bobbin is encased by template, and combine with template.
According to the present invention, because solenoid is to adopt as mould material and the in addition mold pressing of PS resin, the PS resin is a thermoplastic cement, has favorable waterproof property, even therefore moulded electromagnetic coils is applied in the height humid atmosphere for a long time, or being used in the condition that water is attached to moulded electromagnetic coils, its electrical property can not descend yet.
In addition, bobbin is made by the thermoplastic cement PS resin identical with the mould material that forms template, and bobbin is provided with the acute angle protrusion.Therefore, when the PS resin make a bet at 280 to 310 ℃ fashionable, the fusion of acute angle protrusion so that combine with mould material, in the cavity of segment template material solidification on being arranged on bobbin, thereby template encases and the clamping bobbin.Therefore, so the moulded electromagnetic coils of producing has the structure of sealing fully, can prevent for a long time that sealing infiltrates in wherein.
Fig. 1 is the sectional view by the moulded electromagnetic coils of first embodiment of the invention proposition;
Fig. 2 is the amplification sectional view of X part among Fig. 1; And
Fig. 3 is the sectional view by the moulded electromagnetic coils of second embodiment of the invention proposition.
Hereinafter will be illustrated most preferred embodiment of the present invention with reference to the accompanying drawings.
To be explained with reference to 1 pair of first embodiment of the present invention of figure, be taked the drive source of the example of a solenoid 10 as motor-operated control valve.
As shown in Figure 1, comprise electromagnetic coil structure thing 1 and following electromagnetic coil structure thing 11, wherein go up electromagnetic coil structure thing 1 and comprise first bobbin 2 and center on bobbin 2 and first solenoid 3 of winding as the solenoid 10 of motor-operated control valve drive source.Coil 3 is connected to the first terminal (not shown) so that be connected with the outer lead (not shown).First template 4 that the outside of last electromagnetic coil structure thing 1 and synthetic resin are made is carried out mold pressing integratedly.Following electromagnetic coil structure thing 11 goes up relatively that electromagnetic coil structure thing 1 is upper and lower to be formed symmetrically, and identical with last electromagnetic coil structure thing 1, comprises second bobbin 12 and around bobbin 12 and second solenoid 13 that twines.Coil 13 is connected to the second terminal (not shown) so that be connected with the outer lead (not shown).The outside of following electromagnetic coil structure thing 11 and second template 14 are carried out mold pressing integratedly under the state of waterproof sealing.
Last stator component 21 (shell) has the shape of cup, and it is covered with the upper end of first bobbin 2, down is formed with comb teeth part 21b on the inwall 21a of last stator component 21.
The first intermediate stator member 22 has the shape of cup, and it is covered with the bottom of first bobbin 2, up is formed with comb teeth part 22b on the inwall 22a of the first intermediate stator member 22.
Following electromagnetic coil structure thing 11 goes up relatively that electromagnetic coil structure thing 1 is upper and lower to be formed symmetrically, and identical with last electromagnetic coil structure thing 1, comprises second bobbin 12 and around bobbin 12 and second solenoid 13 that twines.Coil 13 is connected to the second terminal (not shown) so that be connected with the outer lead (not shown).The outside of following electromagnetic coil structure thing 11 and second template 14 (being formed from a resin) are carried out mold pressing integratedly under the state of waterproof sealing.
The second intermediate stator member 23 has the shape of cup, and it is covered with the upper end of second bobbin 12, down is formed with comb teeth part 23b on the inwall 23a of the second intermediate stator member 23.
Following stator component 24 has the shape of cup, and it is covered with the bottom of second bobbin 12, up is formed with comb teeth part 24b on the inwall 24a of following stator component 24.
Bobbin 2 and 12 is made by the PS resin that forms template 4 and 14 respectively, in each ends of bobbin 2 and 12 as illustrated in fig. 2, is formed with acute angle protrusion A and cavity B.
The last electromagnetic coil structure thing 1 that last stator 21 and 22 engagements of first intermediate stator so form, then, second intermediate stator 23 and 24 engagements of following stator are electromagnetic coil structure thing 11 down, and then first intermediate stator 22 and second intermediate stator 23 combine.
In Fig. 1, several 31 expression carriages of abridging, 32 expression joints, 33 expression protection tubes, 34 expression lead-in wires, 35 expression anchor clamps, and 36 expression joints.
The mold pressing that the applying template material carries out is relative this system implementation, and this system comprises bobbin 2 and 12, shell 37, then 32 and anchor clamps 35.
In first embodiment, PS resin with good water resistance is used as mould material, thereby sealed electromagnetic coil, even the electrical property of tired this moulded electromagnetic coils is worked as moulded electromagnetic coils and is used for the height humid atmosphere for a long time, or be used in the condition that water is attached to moulded electromagnetic coils, can not descend yet.
In addition, bobbin 2 and 12 is by also being that the thermoplastic cement synthetic resin that forms template 4 and 14 is made, and is provided with acute angle protrusion A and cavity B, acute angle protrusion A fusion when injecting mould material, thus combine with mould material.Therefore, can obtain to have the compression-molded structures of good antidetonation and perfect sealing property, infiltrate in moulded electromagnetic coils wherein thereby can produce long-time anti-sealing.
To make an explanation with reference to 3 pairs of second embodiment of the present invention of figure, take the drive source of the example of a solenoid 40 as electromagnetic valve.
In a second embodiment, as shown in Figure 3, coil 42 is twined thereon, and the bobbin 41 that is wound with coil 42 is used together with terminal 43 being arranged and 44 the mould material of going between embeds mold pressing, so that cover the outside of bobbin 41 around bobbin 41.
Adopt crystalline state PS resin as mould material.Bobbin 41 is also made by the PS resin, and its some parts is provided with acute angle protrusion A and cavity B as shown in Figure 2.
Identical with first embodiment, in a second embodiment, the PS resin that the bobbin 41 that is wound with coil 42 around it is used as mould material embeds mold pressing, thereby moulded electromagnetic coils and template form under the state of waterproof sealing.
The mold pressing of adopting mould material to carry out is following relatively system implementation, and this system comprises bobbin 41, terminal 43 and (part) lead-in wire 44.
In a second embodiment, PS resin with good water resistance is used as mould material, thereby sealed electromagnetic coil, even therefore the electrical property of moulded electromagnetic coils is worked as moulded electromagnetic coils and is used for the height humid atmosphere for a long time, or be used in the condition that water is attached to moulded electromagnetic coils, can not descend yet.
In addition, bobbin 41 is by also being that the thermoplastic cement synthetic resin that forms template 45 is made, and is provided with acute angle protrusion A and cavity B as illustrated in fig. 2, thereby when injecting mould material, acute angle protrusion A fusion is so that combine with mould material.In addition, bobbin 41 is provided with cavity B, so PS resin equipment enters cavity B, thus clamping bobbin 41.Therefore, can obtain such compression-molded structures, it has good resistance to deformation and perfect sealing property, thereby can produce the moulded electromagnetic coils that has in the excellent waterproof of long-time energy.
The moulded electromagnetic coils that employing is so produced is applicable in the refrigerator of using refrigerant cycles as the valve of controlling refrigerant flow speed as the electromagnetic valve or the electronic rotary control valve of its drive source.
As for refrigerator, electromagnetic valve or electronic rotary control valve often are placed in the highly moist atmosphere, as the valve of control refrigerant flow speed.According to moulded electromagnetic coils of the present invention, owing to be applied to electromagnetic valve or electromagnetism rotary control valve through the moulded electromagnetic coils of water-proofing treatment, the electrical property of valve can not take place because humidity or moisture descend, thereby can expect acquisition stable performance for a long time.
The explanation of aforementioned most preferred embodiment helps to understand the present invention, but those skilled in the art can be to its change under the situation that does not depart from spirit of the present invention and scope.
Claims (5)
1. moulded electromagnetic coils, this kind moulded electromagnetic coils comprises bobbin and the coil that twines around bobbin, wherein, coil is provided with template, template is made of the crystalline state polystyrene, and surround coil in the following manner, promptly moulded electromagnetic coils is used coil and is used in addition mold pressing of mould material as insert.
2. moulded electromagnetic coils as claimed in claim 1, it is characterized in that, bobbin is used with the mould material identical materials and is made, and bobbin is provided with acute angle protrusion and cavity, thereby when injecting mould material, the protrusion fusion, and mould material allows to enter cavity to freeze solidly on wherein, thereby bobbin is encased by template, and combines with template.
3. as the moulded electromagnetic coils of claim 1 or 2, it is characterized in that moulded electromagnetic coils constitutes the driver of motor-operated control valve, in order to the flow velocity of refrigerant in the control refrigerant cycles.
4. as the moulded electromagnetic coils of claim 1 or 2, it is characterized in that moulded electromagnetic coils constitutes the directly solenoid of effect needle-valve, in order to the flow velocity of refrigerant in the control refrigerant cycles.
5. method of producing moulded electromagnetic coils, the step that this method comprises has:
Around the bobbin winding around; With
The template of constituting for coil in the following manner around the coil equipment by crystalline state PS resin, promptly moulded electromagnetic coils use coil as insert with in addition mold pressing of mould material,
Wherein, form in the acute angle protrusion fusion when injecting mould material on the bobbin, and mould material is allowed to enter the cavity that forms on the bobbin, and freezes solidly on wherein, thereby bobbin is encased by template, and combine with template.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP072210/2000 | 2000-03-15 | ||
| JP2000072210A JP2001267121A (en) | 2000-03-15 | 2000-03-15 | Molded coil and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1313611A true CN1313611A (en) | 2001-09-19 |
| CN1200437C CN1200437C (en) | 2005-05-04 |
Family
ID=18590667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011114908A Expired - Lifetime CN1200437C (en) | 2000-03-15 | 2001-03-15 | Moulded electromagnetic coils and manufacture thereof |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2001267121A (en) |
| KR (1) | KR100763805B1 (en) |
| CN (1) | CN1200437C (en) |
| IT (1) | ITMI20010503A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295718A (en) * | 2012-02-29 | 2013-09-11 | 株式会社鹭宫制作所 | Molded coil and solenoid valve with molded coil and method for manufacturing molded coil |
| CN108964408A (en) * | 2017-05-27 | 2018-12-07 | 熵零技术逻辑工程院集团股份有限公司 | A kind of transmission device |
| CN112567487A (en) * | 2018-08-10 | 2021-03-26 | 株式会社万都 | Coil assembly and solenoid valve including the same |
| US20240269906A1 (en) * | 2018-11-30 | 2024-08-15 | Zhejing Sanhua Intelligent Controls Co., Ltd. | Electromagnetic coil, mold, and electromagnetic coil manufacturing method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002097831A1 (en) * | 2001-05-31 | 2002-12-05 | Denso Corporation | Internal combustion engine ignition coil, and method of producing the same |
| KR100485118B1 (en) * | 2002-10-10 | 2005-04-27 | 주식회사 디케이씨 | Watertight structure and watertight method of 2-way solenoid valve |
| CN100462860C (en) * | 2004-05-18 | 2009-02-18 | 松下电器产业株式会社 | Fixing apparatus, image forming apparatus, wire winding apparatus and method for producing magnetic excitation coil |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06282820A (en) * | 1993-03-30 | 1994-10-07 | Sony Corp | Multichannel magnetic head and manufacture thereof |
| JP3971160B2 (en) * | 2001-11-08 | 2007-09-05 | 株式会社不二工機 | Electromagnetic coil |
-
2000
- 2000-03-15 JP JP2000072210A patent/JP2001267121A/en active Pending
-
2001
- 2001-03-09 IT IT2001MI000503A patent/ITMI20010503A1/en unknown
- 2001-03-10 KR KR1020010012423A patent/KR100763805B1/en active IP Right Grant
- 2001-03-15 CN CNB011114908A patent/CN1200437C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295718A (en) * | 2012-02-29 | 2013-09-11 | 株式会社鹭宫制作所 | Molded coil and solenoid valve with molded coil and method for manufacturing molded coil |
| CN103295718B (en) * | 2012-02-29 | 2015-09-16 | 株式会社鹭宫制作所 | The electromagnetically operated valve of mold pressing coil and use mold pressing coil and the manufacture method of mold pressing coil |
| CN108964408A (en) * | 2017-05-27 | 2018-12-07 | 熵零技术逻辑工程院集团股份有限公司 | A kind of transmission device |
| CN112567487A (en) * | 2018-08-10 | 2021-03-26 | 株式会社万都 | Coil assembly and solenoid valve including the same |
| US11894179B2 (en) | 2018-08-10 | 2024-02-06 | Hl Mando Corporation | Coil assembly and solenoid valve including same |
| US20240269906A1 (en) * | 2018-11-30 | 2024-08-15 | Zhejing Sanhua Intelligent Controls Co., Ltd. | Electromagnetic coil, mold, and electromagnetic coil manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010091960A (en) | 2001-10-23 |
| JP2001267121A (en) | 2001-09-28 |
| CN1200437C (en) | 2005-05-04 |
| KR100763805B1 (en) | 2007-10-05 |
| ITMI20010503A1 (en) | 2002-09-09 |
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