CN113764171A - Novel submersible pump transformer and manufacturing method thereof - Google Patents
Novel submersible pump transformer and manufacturing method thereof Download PDFInfo
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- CN113764171A CN113764171A CN202111049117.5A CN202111049117A CN113764171A CN 113764171 A CN113764171 A CN 113764171A CN 202111049117 A CN202111049117 A CN 202111049117A CN 113764171 A CN113764171 A CN 113764171A
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- wiring
- side wall
- submersible pump
- transformer
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- 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
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- 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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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- 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
-
- 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
- H01F41/06—Coil winding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a novel submersible pump transformer, which comprises a transformer main body; the transformer main body comprises a silicon steel sheet group, a framework and a wiring part connected with an external wiring; the wiring part is provided with a welding head welded with an external wiring; the welding head is provided with an accommodating opening for accommodating the wiring; the accommodating opening is provided with a connecting side wall which covers the wiring and can be bent and a bottom wall connected with the connecting side wall. The end parts of the external wires are limited in the accommodating port by bending the connecting side walls, and firm real welding effect can be realized only by simply soldering in the accommodating port during welding, so that the operation is very simple and convenient. A manufacturing method of a novel submersible pump transformer comprises the following steps: connecting the silicon steel sheet group and the framework; connecting the first and second wiring subsections; connecting an external connecting wire and a welding head; welding the external connecting wire and the welding head; the fixture block is matched with the limiting groove to limit the connecting wire, so that the external connecting wire can be effectively prevented from falling off along the accommodating port; the connection of the external connection wire is firmer and more reliable.
Description
Technical Field
The invention relates to the field of submersible pumps, in particular to a novel submersible pump transformer and a manufacturing method thereof.
Background
The transformer is a very common power device, and the most basic type of the transformer includes an iron core (silicon steel sheet group) and an external wire wound on a framework. The iron core and the framework need to be provided with relevant external wiring terminals for the external wiring to be properly electrically connected. The following problems exist in the current external wiring structure on the transformer:
firstly, an external connection mode on a traditional iron core is that a lead is directly welded on the side wall of the iron core, and because the wall surface of the side wall of the iron core is not smooth enough, in order to ensure firm welding, the wall surface needs to be polished during welding, and the process is complex; moreover, because the wire core of the external connection wire is thinner, direct tin coating on the wall surface in the welding process is very difficult, and the operation is extremely inconvenient;
secondly, the traditional framework is connected in a mode that a pin sheet is arranged on the framework, and an external connecting wire is welded on the pin sheet; the pin sheet is a common flat sheet-shaped pin structure, and as the external connection core wire is thin, direct tin coating on the pin sheet is very difficult, the operation is extremely inconvenient, the problem that the welding is not firm and easy to fall off exists, the whole pin sheet is often wrapped by coarse soldering tin, the real welding effect is still not achieved, and the problem of tin material waste also exists;
and thirdly, the welding quality and efficiency are low, so that the quality of the submersible pump is reduced, and meanwhile, the manufacturing cost of the submersible pump is increased.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
Disclosure of Invention
One object of the present invention is to provide a novel submersible pump transformer; the wiring structure of the submersible pump transformer is improved emphatically, the problems of inconvenience in operation, difficulty in tinning, infirm welding, easiness in falling off and the like in wiring are solved, and the excellent effects of simplicity and convenience in operation, high welding quality and high efficiency are achieved.
The invention also aims to provide a manufacturing method of the novel submersible pump transformer, which emphasizes on improving the external wiring method of the submersible pump transformer so as to facilitate the manufacturing of the novel submersible pump; the welding of external connection line is firm, also makes novel immersible pump more durable.
In order to achieve the preferable purpose, the invention adopts the technical scheme that:
a novel submersible pump transformer comprises a transformer main body; the transformer main body comprises a silicon steel sheet group, a framework and a wiring part connected with an external wiring; the wiring part is provided with a welding head welded with an external wiring; the welding head is provided with an accommodating opening for accommodating the wiring; the accommodating opening is provided with a connecting side wall which covers the wiring and can be bent and a bottom wall connected with the connecting side wall.
The connecting side wall comprises a first side wall welded with the wiring; the accommodating port further comprises a limiting groove located between the first side wall and the bottom wall.
The limiting groove is an arc-shaped groove.
The connecting sidewall further includes a second sidewall outside the first sidewall.
The first side wall has a first side connection section connected with the second side wall; the second side wall is provided with a second side connecting section connected with the first side wall; the second side connecting section is positioned outside the first side connecting section.
The first side connecting section and the second side connecting section are welded together.
The wiring part comprises a first wiring subsection arranged on the framework; the first wiring subsection has an insert integrally connected with the horn.
The framework is also provided with a socket for accommodating the inserting piece.
The inserting sheet is provided with an inserting end inserted into the inserting opening and a connecting end connected with the welding head; the inserting piece is also provided with inserting grooves which are arranged from the inserting end to the connecting end; the socket includes a card that mates with the socket.
The socket also includes a pre-tightening device that compresses the card.
The card is connected with the side wall of the socket in a sliding way; the pre-tightening device comprises a bearing block fixedly connected with the side wall of the socket and a pressure spring abutting against the position between the clamping piece and the bearing block.
The wiring part also comprises a second wiring subsection arranged on the silicon steel sheet group; the second wire segment has a tab integrally connected to the weld head.
The connecting piece is locked on the silicon steel sheet set through the bolt body.
A manufacturing method of a novel submersible pump transformer comprises the following steps:
(1) connecting the silicon steel sheet group and the framework;
(2) connecting the first and second wiring subsections;
(3) connecting an external connecting wire and a welding head;
(4) welding the external connecting wire and the welding head;
in the step (4), the connecting side wall is unfolded, the external connecting wire forms a connecting groove in a bending or knocking mode, and the connecting groove of the external connecting wire is moved to the position above the limiting groove, so that the connecting groove and the limiting groove are oppositely arranged; and melting the soldering tin by using a welding gun, and solidifying the soldering tin between the connecting groove and the limiting groove to form a clamping block.
And (4) rolling the first side wall after the clamping block is formed, and welding the first side wall and the bottom wall together through tin soldering.
Rolling the second side wall to enable the second side wall to be positioned outside the first side wall; the first side connecting section is attached to the second side connecting section, and the first side connecting section and the second side connecting section are welded through tin soldering.
The second side wall and the bottom wall are welded together by soldering to reinforce the connection.
Filling the first side wall by soldering, and connecting the second side wall and the bottom wall to form a cavity; further strengthening the connection.
After the technical scheme is adopted, in the novel submersible pump transformer, in the actual implementation process, the silicon steel sheet set is connected through the wiring part, so that the complicated process of polishing the silicon steel sheet set is omitted; during welding, the end part of the wiring is simply arranged in the containing port, the end part of the wiring is limited by the containing port, and during welding, the firm real welding effect can be realized only by simply tin feeding into the containing port and the welding hole, so that the operation is very simple and convenient.
Secondly, the wiring is realized to shelf location wiring portion, as above, during the welding, only need to take the tip of wiring in the holding mouth simply, the tip of wiring receives the holding mouth restriction, only need during the welding toward holding mouth and the downthehole simple tinning of welding, can realize firm real effect of welding, the operation is very simple and convenient.
In the actual implementation process, an external connecting wire has good ductility, and a connecting groove is formed in a bending and knocking mode, so that the operation is convenient; the fixture block is matched with the limiting groove to limit the connecting wire, so that the external connecting wire can be effectively prevented from falling off along the accommodating port; the connection of the external connection wire is firmer and more reliable; simultaneously can buckle because of connecting the lateral wall and make the welding more convenient high-efficient.
Drawings
FIG. 1 is a schematic diagram of the structure of a submersible pump transformer according to the present invention;
FIG. 2 is a schematic view of a first wiring subsection of the present invention;
FIG. 3 is a schematic view of the connection of a first wire connection section to a pretensioning device in accordance with the present invention;
FIG. 4 is a schematic view of the submersible pump of the present invention;
FIG. 5 is a sectional view showing the internal structure of the submersible pump according to the present invention;
in the figure:
a silicon steel sheet group 1; a framework 2; a wiring portion 3; an accommodating port 31; a connecting side wall 311; a bottom wall 312; a first sidewall 3111; a limiting groove 313; a second sidewall 3112; a first wiring subsection 32; an insert 321; a socket 21; a slot 3211; a card 212; a pretensioning device 213; a bearing block 2131; a pressure spring 2132; a second wiring subsection 33; a connecting piece 331.
Detailed Description
In order to further explain the technical solution of the present invention, the following detailed description is given by way of specific examples.
As shown in fig. 1-5, a novel submersible pump transformer comprises a transformer body; the transformer main body comprises a silicon steel sheet group 1, a framework 2 and a wiring part 3 connected with an external wiring; the wiring portion 3 has a welding head welded to the external wiring; the bonding head has an accommodating opening 31 for accommodating the bonding wire; the receiving opening 31 has a flexible connecting sidewall 311 covering the wiring and a bottom wall 312 connected to the connecting sidewall 311. In the practical implementation process, the wiring part 3 is installed, so that only the end part of the external wiring needs to be simply lapped in the accommodating port 31 during welding, the end part of the external wiring is limited in the accommodating port 31 by bending the connecting side wall 311, and only simple tin feeding is needed to be carried out in the accommodating port 31 during welding, so that the firm real welding effect can be realized, and the operation is very simple and convenient; meanwhile, the size of the accommodating opening 31 can be adjusted by bending the connecting side wall 311, so that tin bars used for soldering can be effectively reduced, and waste is avoided.
Preferably, the connection sidewall 311 includes a first sidewall 3111 welded together with the wiring; the receiving opening 31 further includes a limiting groove 313 between the first side wall 3111 and the bottom wall 312. In the practical implementation process, the external connecting wire is limited by bending the first side wall 3111, so that the welding operation is simple and the welding is firm; when welding, the soldering tin is solidified outside the external connection wire to form a fixture block, the fixture block is clamped in the limiting groove 313, and the external connection wire is prevented from being separated from the welding head due to pulling through the cooperation of the fixture block and the limiting groove 313.
Preferably, the limiting groove 313 is a circular arc groove. The processing of the limiting groove 313 is convenient.
Preferably, the connecting sidewall 311 further includes a second sidewall 3112 outside the first sidewall 3111. In practical implementation, carry on spacingly through second lateral wall 3112 to first lateral wall 3111, further, support first lateral wall 3111 through second lateral wall 3112, consolidate the welding of first lateral wall 3111 and external connection, prevent that soldering tin from droing for the welding is firm reliable.
Preferably, the first sidewall 3111 has a first side connection section connected with the second sidewall 3112; the second sidewall 3112 has a second side connection section connected to the first sidewall 3111; the second side connecting section is positioned outside the first side connecting section. Further, the welding is reinforced by the second side wall 3112 supporting the first side wall 3111.
Preferably, the first side connecting section and the second side connecting section are welded together. Further, welding of the first side wall 3111 and the external connection line is reinforced by welding the first side connecting section and the second side connecting section; so that the welding position is firm and reliable.
Preferably, the wiring portion 3 comprises a first wiring subsection 32 provided on the skeleton 2; the first wiring subsection 32 has a tab 321 which is integrally connected to the soldering tip. In practical implementation, the tab 321 is connected to the soldering tip to form the first wiring subsection 32, which facilitates the manufacture of the first wiring subsection 32.
Preferably, the framework 2 is further provided with a socket 21 for accommodating the insert 321. In the practical implementation process, the insertion piece 321 is matched with the insertion opening 21, so that the first wiring branch part 32 is convenient to assemble and disassemble, and the manufacturing efficiency of the submersible pump transformer can be effectively improved.
Preferably, the male tab 321 has an insertion end inserted into the socket 21 and a connection end connected to the horn; the inserting piece 321 is also provided with a slot 3211 arranged from the inserting end to the connecting end; the socket 21 includes a card 212 that mates with the slot 3211. In the practical implementation process, the depth of the slot 3211 inserted into the socket 21 can be adjusted through the matching of the slot 3211 and the card 212, so that the assembly and disassembly are convenient, and the welding of external wires is convenient; the welding head and the external connecting wire can be installed after being welded, and the welding efficiency can be effectively improved.
Preferably, the socket 21 further comprises a pretensioning means 213 for pressing the card 212. In practical implementation, the pre-tightening device 213 can keep the card 212 inserted into the slot 3211, so as to prevent the first wiring subsection 32 from coming out of the slot 21.
Preferably, the card 212 is slidably connected to the side wall of the socket 21; the pretensioning device 213 includes a bearing block 2131 fixedly connected with the side wall of the socket 21 and a compression spring 2132 abutting against the card 212 and the bearing block 2131. In the practical implementation process, the pressing spring 2132 is used for extruding the card 212 to enable the card 212 to be inserted into the slot 3211, and meanwhile, the force of the pressing spring 2132 is used for avoiding the card 212 from loosening; the insertion piece 321 is limited by the card 212, and the first wiring subsection 32 is prevented from coming off the socket 21.
Preferably, the wiring portion 3 further includes a second wiring subsection 33 disposed on the silicon steel sheet set 1; the second wiring subsection 33 has a connecting lug 331 which is integrally connected with the soldering tip. In practical implementation, the second wiring subsection 33 is formed by the connection lug 331 being connected to the soldering tip; the bolt body can adopt a threaded connection or riveting mode, so that the connecting sheet 331 is rotatably connected to the silicon steel sheet set 1, and the position of the connecting sheet 331 can be adjusted through the action of external force, thereby realizing the purpose of adjusting the position of the welding head; the welding is convenient.
Preferably, the connecting piece 331 is locked to the silicon steel sheet set 1 by a bolt. Furthermore, the second wiring portion 3 is convenient to disassemble and assemble, the welding head and the external wiring can be welded firstly, and then the installation is carried out, so that the welding is convenient.
A manufacturing method of a novel submersible pump transformer comprises the following steps:
(1) connecting the silicon steel sheet group 1 and the framework 2;
(2) connecting the first and second wiring subsections 32, 33;
(3) connecting an external connecting wire and a welding head;
(4) welding the external connecting wire and the welding head;
in the step (4), the connecting side wall 311 is unfolded, the external connecting wire forms a connecting groove in a bending or knocking mode, the connecting groove of the external connecting wire is moved to the position above the limiting groove 313, and the connecting groove and the limiting groove 313 are oppositely arranged; and melting the soldering tin by a welding gun, and solidifying the soldering tin between the connecting groove and the limiting groove 313 to form a clamping block. In the practical implementation process, the external connection wire has better ductility, and the connection groove is formed in a bending and knocking mode, so that the operation is convenient; the fixture block is matched with the limiting groove 313 to limit the connecting wire, so that the external connecting wire can be effectively prevented from falling off along the accommodating port 31; the connection of the external connection wire is firmer and more reliable; meanwhile, the connecting side wall 311 can be bent to enable welding to be more convenient and efficient.
Preferably, in step (4), the first side wall 3111 is rolled after forming the block, and the first side wall 3111 and the bottom wall 312 are welded together by soldering. In an actual implementation process, the first side wall 3111 is rolled up to enable the first side wall 3111 to limit the fixture block, so that the fixture block is prevented from falling out of the limiting groove 313; strengthen the limiting displacement of first lateral wall 3111 through the welding simultaneously for it is more firm to connect.
Preferably, rolling the second sidewall 3112 with the second sidewall 3112 outside the first sidewall 3111; the first side connecting section is attached to the second side connecting section, and the first side connecting section and the second side connecting section are welded through tin soldering. In practical implementation, the second side wall 3112 supports the first side wall 3111, and limits the first side wall 3111, so as to prevent the first side wall 3111 from being separated from the bottom wall 312 and prevent the fixture block from being separated from the limiting groove 313; so that the connection is firmer and more reliable.
Preferably, the second side wall 3112 and the bottom wall 312 are welded together by soldering to reinforce the connection. By welding the second side wall 3112 to the bottom wall 312, the weld is further strengthened, making the connection more secure and reliable.
Preferably, the first side wall 3111, the second side wall 3112 and the bottom wall 312 are filled by soldering to form a cavity; further strengthening the connection. In practical implementation, the first side wall 3111, the second side wall 3112 and the bottom wall 312 are tightly connected and firmly secured by filling the cavity.
The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.
Claims (10)
1. A novel submersible pump transformer comprises a transformer main body; the transformer main body comprises a silicon steel sheet group, a framework and a wiring part connected with an external wiring; the method is characterized in that: the wiring part is provided with a welding head welded with an external wiring; the welding head is provided with an accommodating opening for accommodating the wiring; the accommodating opening is provided with a connecting side wall which covers the wiring and can be bent and a bottom wall connected with the connecting side wall.
2. The novel submersible pump transformer of claim 1, wherein: the connecting side wall comprises a first side wall welded with the wiring; the accommodating port further comprises a limiting groove located between the first side wall and the bottom wall.
3. The novel submersible pump transformer of claim 2, wherein: the limiting groove is an arc-shaped groove.
4. The novel submersible pump transformer of claim 2, wherein: the connecting sidewall further includes a second sidewall outside the first sidewall.
5. The novel submersible pump transformer of claim 4, wherein: the first side wall has a first side connection section connected with the second side wall; the second side wall is provided with a second side connecting section connected with the first side wall; the second side connecting section is positioned outside the first side connecting section.
6. The novel submersible pump transformer of claim 5, wherein: the first side connecting section and the second side connecting section are welded together.
7. The novel submersible pump transformer of claim 6, wherein: the wiring part comprises a first wiring subsection arranged on the framework; the first wiring subsection has an insert integrally connected with the horn.
8. The novel submersible pump transformer of claim 7, wherein: the framework is also provided with a socket for accommodating the inserting piece.
9. The novel submersible pump transformer of claim 8, wherein: the inserting sheet is provided with an inserting end inserted into the inserting opening and a connecting end connected with the welding head; the inserting piece is also provided with inserting grooves which are arranged from the inserting end to the connecting end; the socket includes a card that mates with the socket.
10. The novel submersible pump transformer of claim 9, wherein: the socket also includes a pre-tightening device that compresses the card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111049117.5A CN113764171B (en) | 2021-09-08 | 2021-09-08 | Submersible pump transformer and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111049117.5A CN113764171B (en) | 2021-09-08 | 2021-09-08 | Submersible pump transformer and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN113764171A true CN113764171A (en) | 2021-12-07 |
| CN113764171B CN113764171B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111049117.5A Active CN113764171B (en) | 2021-09-08 | 2021-09-08 | Submersible pump transformer and manufacturing method thereof |
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Citations (9)
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|---|---|---|---|---|
| GB394425A (en) * | 1932-02-09 | 1933-06-29 | Hubert George Anthony Ross Wil | Improvements in or relating to electric transformers |
| JPH10241930A (en) * | 1997-03-03 | 1998-09-11 | Honda Lock Mfg Co Ltd | Coil assembly |
| JP2001035729A (en) * | 1999-07-26 | 2001-02-09 | Mitsumi Electric Co Ltd | Board-mounting coil device |
| JP3130031U (en) * | 2006-12-27 | 2007-03-08 | スミダコーポレーション株式会社 | Coil parts |
| CN105719803A (en) * | 2016-04-12 | 2016-06-29 | 泉州市元华电子科技有限公司 | Wiring structure improvement of transformer and submerged pump adopting structure improvement |
| CN106851869A (en) * | 2015-04-08 | 2017-06-13 | 蒋国屏 | A kind of preparation technology of thermal sensitive ceramics heating element |
| CN207719024U (en) * | 2018-01-16 | 2018-08-10 | 合肥市奥格威电子科技有限公司 | A kind of transformer novel connecting terminal |
| CN208460997U (en) * | 2018-05-18 | 2019-02-01 | 东莞市印通五金有限公司 | A kind of ultrafine wire solder terminal |
| CN212303335U (en) * | 2020-06-23 | 2021-01-05 | 浦江忠华变压器科技有限公司 | Be used for transformer lead-out wire structure |
-
2021
- 2021-09-08 CN CN202111049117.5A patent/CN113764171B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB394425A (en) * | 1932-02-09 | 1933-06-29 | Hubert George Anthony Ross Wil | Improvements in or relating to electric transformers |
| JPH10241930A (en) * | 1997-03-03 | 1998-09-11 | Honda Lock Mfg Co Ltd | Coil assembly |
| JP2001035729A (en) * | 1999-07-26 | 2001-02-09 | Mitsumi Electric Co Ltd | Board-mounting coil device |
| JP3130031U (en) * | 2006-12-27 | 2007-03-08 | スミダコーポレーション株式会社 | Coil parts |
| CN106851869A (en) * | 2015-04-08 | 2017-06-13 | 蒋国屏 | A kind of preparation technology of thermal sensitive ceramics heating element |
| CN105719803A (en) * | 2016-04-12 | 2016-06-29 | 泉州市元华电子科技有限公司 | Wiring structure improvement of transformer and submerged pump adopting structure improvement |
| CN207719024U (en) * | 2018-01-16 | 2018-08-10 | 合肥市奥格威电子科技有限公司 | A kind of transformer novel connecting terminal |
| CN208460997U (en) * | 2018-05-18 | 2019-02-01 | 东莞市印通五金有限公司 | A kind of ultrafine wire solder terminal |
| CN212303335U (en) * | 2020-06-23 | 2021-01-05 | 浦江忠华变压器科技有限公司 | Be used for transformer lead-out wire structure |
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| Publication number | Publication date |
|---|---|
| CN113764171B (en) | 2023-07-14 |
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Effective date of registration: 20230613 Address after: 362101 Taiwan business pioneer park, huangtang Town, Hui'an County, Quanzhou City, Fujian Province Applicant after: FUJIAN YUANHUA PUMP Co.,Ltd. Address before: No.102 Xilin village, Xizhuang village, Guanqiao Town, Nanan City, Quanzhou City, Fujian Province Applicant before: Kang Jinsha |
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