WO2022033190A1 - 线圈骨架及线圈 - Google Patents
线圈骨架及线圈 Download PDFInfo
- Publication number
- WO2022033190A1 WO2022033190A1 PCT/CN2021/101963 CN2021101963W WO2022033190A1 WO 2022033190 A1 WO2022033190 A1 WO 2022033190A1 CN 2021101963 W CN2021101963 W CN 2021101963W WO 2022033190 A1 WO2022033190 A1 WO 2022033190A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waterproof
- coil bobbin
- end ring
- coil
- rib
- Prior art date
Links
- 238000001746 injection moulding Methods 0.000 claims abstract description 16
- 239000012778 molding material Substances 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 9
- 230000035515 penetration Effects 0.000 claims description 9
- 239000000155 melt Substances 0.000 claims 1
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000000149 penetrating effect Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
-
- 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
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
-
- 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
Definitions
- the present application relates to the technical field of electromagnetic coils, and in particular, to a coil bobbin and a coil.
- the electronic expansion valve coil includes a coil bobbin, enameled wire, an electromagnetic pole plate, a pin and a shell.
- the enameled wire is first wound on the coil bobbin, and then the pin is fixed on the coil bobbin. Both ends of the enameled wire are welded to the socket. needle, then assemble the electromagnetic plate and shell, and finally carry out packaging and injection molding.
- a coil bobbin includes a bobbin and end rings disposed at both ends of the bobbin, and a connecting plate is provided on one end ring, and the connecting plate is provided with a pin mounting structure for mounting pins.
- three waterproof bumps are arranged on the connecting plate, and a waterproof groove is formed between the adjacent waterproof bumps.
- the thickness of the top of the waterproof bump is relatively thick, and the heat of the injection molding material is not enough to melt the top of the waterproof bump during injection molding. After molding, the coil bobbin and the injection molding material have poor bonding. From infiltrating into the coil, the water penetrates along the end ring to the pin installation structure, which makes the insulation performance of the coil invalid and cannot meet the insulation performance requirements of the product.
- a coil bobbin provided by the present application includes: a winding part; a first end ring and a second end ring, which are arranged at both ends of the winding part; a connecting part, which is arranged on the outer edge of the first end ring; The needle mounting part is arranged on the side of the connecting part away from the first end ring; wherein, the connecting part is provided with a waterproof structure, and the waterproof structure includes two outer waterproof ribs and at least one middle between the two outer waterproof ribs Waterproof rib, the outer waterproof rib has a tip to facilitate melting with the injection molding material.
- the tip is easily melted into the injection molding material during injection molding, so that the waterproof rib and the injection molding material are effectively melted into one, and the coil bobbin and the injection molding material are well combined after molding, which effectively prevents moisture from penetrating into the insert along the end face of the first end ring.
- the insulation performance of the coil is improved to meet the requirements of the insulation performance.
- the surface of the intermediate waterproof rib is a curved surface to extend the penetration distance.
- This arrangement prevents moisture from penetrating into the pin mounting holes on the pin mounting portion along the end face of the first end ring, thereby improving the insulation performance of the coil.
- the curved surface is a semicircular surface
- the curved surface includes two connected and inwardly curved first arc surfaces.
- the curved surface includes a first inclined surface, a flat surface and a second inclined surface connected in sequence, the first inclined surface and the second inclined surface are inclined relative to the end surface of the first end ring, and the plane is parallel to the end surface.
- the first inclined plane and the plane form an obtuse angle
- the second inclined plane and the plane form an obtuse angle
- This arrangement facilitates the processing of the intermediate waterproof rib and reduces the processing difficulty.
- the surface of the outer waterproof rib includes a connected vertical surface and a second arc-shaped surface, the vertical surface is perpendicular to the end surface of the first end ring, or the cross-sectional shape of the outer waterproof rib is an inverted V shape.
- the waterproof structure further includes a protruding strip, the outer waterproof rib and the middle waterproof rib are both arranged on the protruding strip, and at least one side surface of the protruding strip is provided with a first groove to extend the penetration distance.
- This arrangement prevents moisture from penetrating into the pin mounting holes on the pin mounting portion along the end face of the first end ring, thereby improving the insulation performance of the coil.
- the cross-sectional shape of the first groove is a semicircle.
- the connecting portion is further provided with a second groove, the second groove is located between the first end ring and the waterproof structure, and/or the middle surface of the two outer waterproof ribs relative to the middle waterproof ribs
- the centerline of the set is symmetrical.
- the second groove can extend the penetration distance; the two outer waterproof ribs are symmetrically arranged, which is convenient for processing and reduces the manufacturing cost.
- the present application also provides a coil, comprising: the above-mentioned coil bobbin.
- the coil provided by the present application has the advantages of good waterproof performance, good insulation performance, convenient processing and the like.
- FIG. 1 is a schematic perspective view of a coil bobbin in a first embodiment of the present application
- FIG. 2 is a schematic cross-sectional view of the coil bobbin of FIG. 1;
- FIG. 3 is a partial cross-sectional schematic diagram of the coil bobbin of FIG. 2;
- FIG. 5 is a partial perspective view of the coil of FIG. 4;
- FIG. 6 is a schematic perspective view of a coil bobbin in a second embodiment of the present application.
- FIG. 7 is a schematic cross-sectional view of the coil bobbin of FIG. 6;
- FIG. 8 is a partial cross-sectional schematic diagram of the coil bobbin of FIG. 7;
- FIG. 9 is a schematic perspective view of a coil bobbin in a third embodiment of the present application.
- FIG. 10 is a schematic cross-sectional view of the coil bobbin of FIG. 9;
- FIG. 11 is a schematic partial cross-sectional view of the coil bobbin of FIG. 10 .
- a component when referred to as being “mounted on” another component, it can be directly mounted on the other component or there may also be an intervening component.
- a component When a component is considered to be “set on” another component, it may be directly set on the other component or there may be a co-existing centered component.
- a component When a component is said to be “fixed” to another component, it may be directly fixed to the other component or there may also be an intervening component.
- the coil bobbin 10 of this embodiment includes: a winding portion 11 , a first end ring 12 , a second end ring 13 , a connecting portion 14 and a pin mounting portion 15 , the first end ring 12 and the first end ring 12 and the second end ring 13 .
- the two end rings 13 are arranged at both ends of the winding portion 11 ;
- the connecting portion 14 is arranged on the outer edge of the first end ring 12 ;
- the pin mounting portion 15 is arranged on the side of the connecting portion 14 away from the first end ring 12
- the connecting part 14 is provided with a waterproof structure, and the waterproof structure includes two outer waterproof ribs 16 and a middle waterproof rib 17 located between the two outer waterproof ribs 16. molten.
- the arrows in Fig. 2 indicate the flow direction of water penetration.
- the outer waterproof rib 16 has a tip, and the tip is easily melted into the injection material during injection molding, so that the waterproof rib and the injection material are effectively melted into one. This effectively prevents moisture from penetrating into the pin mounting portion 15 along the end face of the first end ring 12, improves the insulation performance of the coil, and meets the requirements for generating insulation performance.
- the surface of the middle waterproof rib 17 is a curved surface, and the curved surface can extend the penetration distance and prevent moisture from penetrating into the pin mounting holes 151 on the pin mounting portion 15 along the end surface of the first end ring 12, thereby increasing the coil insulating properties.
- the curved surface is a semicircular surface 171 , which is convenient to process and reduces the manufacturing cost.
- the surface of the outer waterproof rib 16 includes a connected vertical surface 161 and a second arc-shaped surface 162 , and the vertical surface 161 is perpendicular to the end surface of the first end ring 12 .
- the connection between the vertical surface 161 and the second arc-shaped surface 162 forms a tip.
- the second arc-shaped surface 162 is curved inwardly.
- the second arc-shaped surface 162 is curved outward, or the cross-sectional shape of the outer waterproof rib 16 is an inverted V-shape.
- the connecting portion 14 is further provided with a second groove 141, the second groove 141 is located between the first end ring 12 and the waterproof structure, and the second groove 141 can extend the penetration distance.
- the cross-sectional shape of the second groove 141 is V-shaped.
- the second groove 141 includes an inclined groove wall and a vertical groove wall, the inclined groove wall is inclined relative to the end face of the first end ring 12 , and the vertical groove wall is connected with the vertical surface 161 .
- the two outer waterproof ribs 16 are symmetrically arranged with respect to the center line of the surface of the middle waterproof rib 17 .
- the curved surface includes two first arc-shaped surfaces 172 that are connected and arched and curved inwardly, and the connection of the two first arc-shaped surfaces 172 forms a tip.
- the middle waterproof rib 17 also has a tip. During injection molding, the tip is easily melted into the injection molding material, which further improves the waterproof performance, thereby improving the insulation performance of the coil.
- the arrows in FIG. 7 indicate the flow directions of water permeation.
- the first arc-shaped surface 172 is a quarter circular surface, and at this time, the three intermediate waterproof ribs 17 are connected in sequence and are wavy.
- the waterproof structure further includes protruding strips 18. Both the outer waterproofing rib 16 and the middle waterproofing rib 17 are arranged on the protruding strips 18. The two sides of the protruding strips 18 are provided with first grooves 181 to extend the penetration distance. , to prevent moisture from penetrating into the pin mounting holes 151 on the pin mounting portion 15 along the end face of the first end ring 12 , thereby improving the insulation performance of the coil.
- the cross-sectional shape of the first groove 181 is a semicircle.
- the cross-sectional shape of the first groove 181 is V-shaped.
- the vertical groove wall of the second groove 141 and the vertical surface 161 are in the same plane.
- three intermediate waterproof ribs 17 of the waterproof structure are provided.
- the number of the middle waterproof ribs 17 is not limited to this.
- the protruding strips 18 may not be provided, and the outer waterproof rib 16 and the middle waterproof rib 17 may be directly disposed on the connecting portion 14 . At this time, the vertical groove wall of the second groove 141 and the vertical surface 161 connect.
- the curved surface includes a first inclined surface 173 , a flat surface 174 and a second inclined surface 175 which are connected in sequence.
- the end face, that is, the cross-sectional shape of the middle waterproof rib 17 is trapezoidal.
- the arrows in FIG. 10 indicate the flow direction of water permeation.
- first inclined surface 173 and the flat surface 174 form an obtuse angle
- second inclined surface 175 and the flat surface 174 form an obtuse angle
- the cross-sectional shape of the outer waterproof rib 16 is an inverted V shape.
- the surface of the outer waterproof rib 16 includes a third inclined surface and a fourth inclined surface inclined relative to the end surface of the first end ring, and the fourth inclined surface is connected with the first inclined surface 173 .
- the third inclined surface forms an acute included angle with the end surface.
- the vertical groove wall of the second groove 141 and the third inclined surface are connected by a plane.
- the present application also provides a coil comprising: the above-mentioned coil bobbin.
- the coils of FIGS. 4 and 5 use the bobbin of the first embodiment.
- the coil also includes an electromagnetic pole plate 20, pins 30, enameled wires and a casing 40.
- the enameled wire is wound on the coil bobbin 10, and then the pins 30 are inserted into the pin mounting holes 151 on the pin mounting portion 15. Then, the two terminals of the enameled wire are welded to the pins 30, the two coil bobbins 10 are connected by two electromagnetic pole plates 20, the outer casing is sheathed outside the coil bobbin, and finally the packaging and injection molding are carried out.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnets (AREA)
- Insulating Of Coils (AREA)
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
Claims (10)
- 一种线圈骨架,其特征在于,包括:绕线部;第一端环和第二端环,设置在所述绕线部的两端处;连接部,设置在所述第一端环的外边缘上;插针安装部,设置在所述连接部的远离所述第一端环的一侧上;其中,所述连接部上设有防水结构,所述防水结构包括两个外防水筋和位于两个所述外防水筋之间的至少一个中间防水筋,所述外防水筋具有尖端,以便于与注塑材料熔融。
- 根据权利要求1所述的线圈骨架,其中,所述中间防水筋的表面为曲面,以延长渗透距离。
- 根据权利要求2所述的线圈骨架,其中,所述曲面为半圆形面;或者,所述曲面包括两个相连接且向内拱起弯曲的第一弧形面。
- 根据权利要求2所述的线圈骨架,其中,所述曲面包括依次连接的第一斜面、平面及第二斜面,所述第一斜面和所述第二斜面均相对于所述第一端环的端面倾斜设置,所述平面平行于所述端面。
- 根据权利要求4所述的线圈骨架,其中,所述第一斜面和所述平面呈钝角夹角,所述第二斜面和所述平面呈钝角夹角。
- 根据权利要求1所述的线圈骨架,其中,所述外防水筋的表面包括相连接的竖直面和第二弧形面,所述竖直面垂直于所述第一端环的端面,或者,所述外防水筋的横截面形状呈倒V形。
- 根据权利要求1所述的线圈骨架,其中,所述防水结构还包括凸条,所述外防水筋和所述中间防水筋均设置在所述凸条上,所述凸条的至少一个侧 面上设有第一凹槽,以延长渗透距离。
- 根据权利要求7所述的线圈骨架,其中,所述第一凹槽的横截面形状呈半圆形。
- 根据权利要求1所述的线圈骨架,其中,所述连接部上还设有第二凹槽,所述第二凹槽位于所述第一端环和所述防水结构之间,和/或,两个所述外防水筋相对于所述中间防水筋的中表面的中心线对称设置。
- 一种线圈,其特征在于,包括:权利要求1至9中任一项所述的线圈骨架。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022567466A JP2023528186A (ja) | 2020-08-14 | 2021-06-24 | コイルボビン及びコイル |
KR1020237001656A KR20230024996A (ko) | 2020-08-14 | 2021-06-24 | 코일 보빈 및 코일 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN202021706863.8 | 2020-08-14 | ||
CN202021706863.8U CN213070865U (zh) | 2020-08-14 | 2020-08-14 | 线圈骨架及线圈 |
Publications (1)
Publication Number | Publication Date |
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WO2022033190A1 true WO2022033190A1 (zh) | 2022-02-17 |
Family
ID=75582938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2021/101963 WO2022033190A1 (zh) | 2020-08-14 | 2021-06-24 | 线圈骨架及线圈 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2023528186A (zh) |
KR (1) | KR20230024996A (zh) |
CN (1) | CN213070865U (zh) |
WO (1) | WO2022033190A1 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN213070865U (zh) * | 2020-08-14 | 2021-04-27 | 盾安环境技术有限公司 | 线圈骨架及线圈 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2791413Y (zh) * | 2004-12-14 | 2006-06-28 | 浙江三花制冷集团有限公司 | 电磁线圈的骨架结构 |
CN201845632U (zh) * | 2010-09-10 | 2011-05-25 | 浙江盾安禾田金属有限公司 | 一种线圈骨架及采用该骨架的线圈 |
CN202584979U (zh) * | 2012-05-02 | 2012-12-05 | 诸暨万畅磁电科技有限公司 | 一种线圈骨架结构 |
CN204010878U (zh) * | 2014-07-15 | 2014-12-10 | 无锡其诺电气有限公司 | 具有防水结构的电子膨胀阀定子线圈骨架 |
CN204858797U (zh) * | 2015-07-13 | 2015-12-09 | 中山市港利制冷配件有限公司 | 具有防水结构的电磁线圈骨架 |
CN205828045U (zh) * | 2016-07-27 | 2016-12-21 | 浙江三花股份有限公司 | 一种双密封电子膨胀阀线圈及其骨架 |
CN211237948U (zh) * | 2020-02-04 | 2020-08-11 | 盾安环境技术有限公司 | 骨架结构、电磁线圈及电子膨胀阀 |
CN213070865U (zh) * | 2020-08-14 | 2021-04-27 | 盾安环境技术有限公司 | 线圈骨架及线圈 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0963835A (ja) * | 1995-08-24 | 1997-03-07 | Tokimec Inc | モールドコイル |
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2020
- 2020-08-14 CN CN202021706863.8U patent/CN213070865U/zh active Active
-
2021
- 2021-06-24 WO PCT/CN2021/101963 patent/WO2022033190A1/zh active Application Filing
- 2021-06-24 KR KR1020237001656A patent/KR20230024996A/ko unknown
- 2021-06-24 JP JP2022567466A patent/JP2023528186A/ja active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2791413Y (zh) * | 2004-12-14 | 2006-06-28 | 浙江三花制冷集团有限公司 | 电磁线圈的骨架结构 |
CN201845632U (zh) * | 2010-09-10 | 2011-05-25 | 浙江盾安禾田金属有限公司 | 一种线圈骨架及采用该骨架的线圈 |
CN202584979U (zh) * | 2012-05-02 | 2012-12-05 | 诸暨万畅磁电科技有限公司 | 一种线圈骨架结构 |
CN204010878U (zh) * | 2014-07-15 | 2014-12-10 | 无锡其诺电气有限公司 | 具有防水结构的电子膨胀阀定子线圈骨架 |
CN204858797U (zh) * | 2015-07-13 | 2015-12-09 | 中山市港利制冷配件有限公司 | 具有防水结构的电磁线圈骨架 |
CN205828045U (zh) * | 2016-07-27 | 2016-12-21 | 浙江三花股份有限公司 | 一种双密封电子膨胀阀线圈及其骨架 |
CN211237948U (zh) * | 2020-02-04 | 2020-08-11 | 盾安环境技术有限公司 | 骨架结构、电磁线圈及电子膨胀阀 |
CN213070865U (zh) * | 2020-08-14 | 2021-04-27 | 盾安环境技术有限公司 | 线圈骨架及线圈 |
Also Published As
Publication number | Publication date |
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JP2023528186A (ja) | 2023-07-04 |
CN213070865U (zh) | 2021-04-27 |
KR20230024996A (ko) | 2023-02-21 |
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