CN108646133B - Manufacturing method of wiring device for detecting polarity of current transformer - Google Patents
Manufacturing method of wiring device for detecting polarity of current transformer Download PDFInfo
- Publication number
- CN108646133B CN108646133B CN201810331587.2A CN201810331587A CN108646133B CN 108646133 B CN108646133 B CN 108646133B CN 201810331587 A CN201810331587 A CN 201810331587A CN 108646133 B CN108646133 B CN 108646133B
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- China
- Prior art keywords
- upper mold
- base body
- adjusting block
- mold box
- box
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a method for manufacturing a wiring device for detecting the polarity of a current transformer, which comprises the following steps: (1) injection molding of a matrix: adopting a closed mold, wherein the mold comprises an upper mold box and a lower mold box, the upper mold box and the lower mold box are matched to form a closed box body, the bottom of the lower mold box is provided with I-shaped lower mold cores with the same number as the wiring modules of the base body, the upper mold box is provided with linear upper mold cores with the same number as the lower mold cores, the upper mold box is provided with injection molding holes and air holes, the upper mold box and the lower mold box are matched, and the upper mold cores and the lower mold cores are in one-to-one correspondence; (2) manufacturing an adjusting block; (3) the adjustment block is mounted to the base. The manufacturing method of the wiring device adopts a special method to manufacture the base body, and the base body after injection molding is convenient to demould, so that the production efficiency of the base body is high.
Description
Technical Field
The invention relates to a wiring device for detecting the polarity of a current transformer, in particular to a wiring device for detecting the polarity of a current transformer and a manufacturing method thereof.
Background
Chinese patent No. 201210422230.8 discloses a secondary wiring device for testing characteristics of a current transformer, one end of which is connected to a wiring terminal through a double-pole double-throw switch, and the other end of which can be placed in a test terminal or a short-circuit terminal, wherein the wiring terminal is connected to a lead wire led out from a secondary winding of the current transformer, and the short-circuit terminal is grounded, thereby realizing switching between two states of "on test" and "short-circuit grounding" without wiring.
Before testing, the testing device needs to connect a double-pole double-throw switch on a secondary coil of a current transformer to be tested, and needs to be provided with a short-circuit terminal and a testing terminal. The operation is cumbersome.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a method for manufacturing a current transformer polarity detection junction device is provided.
In order to solve the technical problems, the invention comprises a base body and a plurality of wiring modules arranged on the base body, wherein the base body is made of insulating materials, each wiring module comprises two terminal slots arranged on the base body and an adjusting block inserted on the base body, one end of each adjusting block is made of conductive materials, the other end of each adjusting block is made of insulating materials, two conductive sheets are respectively arranged on two side faces of the insulating end of each adjusting block and are insulated, the two conductive sheets are respectively connected with a lead, one end of each lead is arranged in the insulating end of each adjusting block, the other end of each lead is led out from the end face of the insulating end of each adjusting block, and after the terminals are inserted in the two terminal slots, the adjusting blocks are provided with two conductive sheets which are respectively in contact with the two terminals in the position adjusting process, and the adjusting blocks are also provided with conductive ends which are in.
The invention relates to a method for manufacturing a wiring device for detecting the polarity of a current transformer, which is characterized by comprising the following steps of: the method comprises the following steps: (1) injection molding of a matrix: adopting a closed mold, wherein the mold comprises an upper mold box and a lower mold box, the upper mold box and the lower mold box are matched to form a closed box body, the bottom of the lower mold box is provided with I-shaped lower mold cores with the same quantity as wiring modules of a base body, the upper mold box is provided with linear upper mold cores with the same quantity as the lower mold cores, the upper mold box is provided with injection molding holes and air holes, the upper mold box and the lower mold box are firstly matched, the upper mold cores and the lower mold cores are in one-to-one correspondence, the upper mold cores are propped against a middle beam of the lower mold cores, fluid plastics are injected from the injection molding holes, and the base body with terminal slots and slots of an adjusting block is; (2) manufacturing an adjusting block; (3) the adjustment block is mounted to the base.
In order to improve the quality of the base body, the injection molding holes and the vent holes are formed in the top plate of the upper mold box, the number of the injection molding holes is the same as that of the upper mold cores, each upper mold core faces to one injection molding hole, the injection molding holes corresponding to the adjacent upper mold cores are located on two sides of the upper mold core, the number of the vent holes is two, and the two vent holes are respectively located on two opposite angles of the top plate of the upper mold box.
In order to conveniently plug the terminals, the number of the wiring modules is 3-6, all the wiring modules are arranged in a straight line shape, and two terminal slots of each wiring module and slots of the adjusting block are arranged in an I shape. Therefore, the terminal slot is wider than the adjusting block slot, the adjusting block can be clamped in the terminal slot, and the terminal is not easy to fall off when the adjusting block slides.
In order to further prevent the terminal from falling off, the slots of the adjusting block penetrate through the base body, the terminal slots do not penetrate through the base body, and the notches of all the terminal slots are positioned on the same side of the base body.
The invention has the beneficial effects that: the invention adopts a special wiring device, one wiring device can be connected with a plurality of secondary windings, the short circuit state of the secondary windings and the connection state with an ammeter are switched by adjusting the position of the adjusting block, the secondary winding terminals are not required to be repeatedly wired, and the switching speed is high, so that the open circuit of the secondary windings of the current transformer can be avoided. The manufacturing method of the wiring device adopts a special method to manufacture the base body, and the base body after injection molding is convenient to demould, so that the production efficiency of the base body is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 2;
FIG. 4 is an enlarged view of the structure of the element 4;
FIG. 5 is a schematic perspective view of the lower mold box (with one sidewall cut away);
fig. 6 is a schematic perspective view of the upper mold box (in a state of being turned upside down, with one side wall cut away).
In the figure: 1. ammeter, 2, base member, 3, terminal slot, 4, regulating block, 5, wire, 6, lower mould box, 7, lower mold core, 8, last mold box, 9, injection molding hole, 10, last mold core, 11, bleeder vent. 4-1, a conductive end, 4-2, an insulating end, 4-3 and a conductive sheet.
Detailed Description
As shown in fig. 1, 2 and 3, the wiring device for detecting the polarity of a current transformer comprises a base body 2 and a plurality of wiring modules arranged on the base body 2, wherein the base body 2 is made of an insulating material, each wiring module comprises two terminal slots 3 arranged on the base body 2 and an adjusting block 4 inserted on the base body 2, as shown in fig. 4, one end of each adjusting block 4 is made of a conductive material, the other end of each adjusting block 4 is made of an insulating material to form a conductive end 4-1 and an insulating end 4-2, two conductive sheets 4-3 are respectively arranged on two side faces of the insulating end 4-2 of each adjusting block 4, the two conductive sheets 4-3 are insulated, each conductive sheet 4-3 is connected with a wire 5, one end of each wire 5 is arranged in the insulating end of each adjusting block 4, and the other end of each wire 5 is led out from the end face of the insulating end of each adjusting, after the two terminals are inserted into the two terminal slots 3, the adjusting block 4 has a state that the two conducting strips 4-3 are respectively contacted with the two terminals, and the adjusting block 4 also has a state that the conducting end 4-1 is contacted with the two terminals in the position adjusting process.
The number of the wiring modules is 4, all the wiring modules are arranged in a straight line shape, and two terminal slots 3 of each wiring module and slots of the adjusting block 4 are arranged in an I shape. The slots of the adjusting block 4 penetrate through the base body 2, the terminal slots 3 do not penetrate through the base body, and the notches of all the terminal slots 3 are positioned on the same side of the base body 2.
The manufacturing method of the wiring device for detecting the polarity of the current transformer comprises the following steps: (1) injection molding of the substrate 2: adopting a closed mold, as shown in fig. 5 and 6, the mold comprises an upper mold box 8 and a lower mold box 6, forming a closed box body after the upper mold box 8 and the lower mold box 6 are closed, wherein the bottom of the lower mold box 6 is provided with an I-shaped lower mold core 7 with the same number as that of the wiring modules of the substrate 2, the upper mold box 8 is provided with a linear upper mold core 10 with the same number as that of the lower mold core 7, the upper mold box 8 is provided with an injection hole 9 and an air hole 11, the upper mold box 8 and the lower mold box 6 are closed firstly, the upper mold cores 10 correspond to the lower mold cores 7 one by one, the upper mold core 10 is propped against a middle beam of the lower mold core 7, fluid plastics are injected from the injection hole 9, and the substrate 2 with terminal slots and slots of; (2) manufacturing an adjusting block 4; (3) the adjusting block 4 is mounted on the base body 2.
When the wiring device is used for polarity detection, the wiring device is matched with an ammeter and a power supply for use, and the polarity detection comprises the following steps of (1) adjusting the conductive ends of all adjusting blocks 4 to positions right opposite to two terminal slots 3, and connecting two leads 5 of each adjusting block 4 to the ammeter 1; (2) respectively inserting two wiring terminals of the secondary winding of each current transformer to be detected into two terminal slots 3 of one wiring module to enable the secondary windings of all the current transformers to be in short circuit; (3) detecting, namely adjusting an adjusting block 4 corresponding to a current transformer to be detected to enable two conducting strips 4-3 to be respectively opposite to two terminal slots 3, so that a secondary winding of the current transformer is connected with an ammeter (a short circuit state is removed), then connecting and instantly disconnecting a primary winding of the current transformer with a power supply, and observing the ammeter; (4) judging the polarity of a secondary winding of the current transformer according to the rotation state of a pointer of the ammeter; (5) adjusting the position of the adjusting block to enable the measured secondary winding to be short-circuited, and repeating the steps (3) and (4) to detect the next current transformer; (6) and (5) repeating the step until all the current transformers are detected.
Claims (3)
1. A manufacturing method of a wiring device for detecting the polarity of a current transformer is characterized by comprising the following steps: the wiring device for detecting the polarity of the current transformer comprises a base body and a plurality of wiring modules arranged on the base body, wherein the base body is made of insulating materials, each wiring module comprises two terminal slots arranged on the base body and an adjusting block inserted on the base body, the two terminal slots of each wiring module and the slots of the adjusting blocks are arranged in an I shape, the slots of the adjusting blocks penetrate through the base body, the terminal slots do not penetrate through the base body, the notches of all the terminal slots are positioned at the same side of the base body, one end of each adjusting block is made of conductive materials, the other end of each adjusting block is made of insulating materials, two conductive sheets are respectively arranged on two side faces of the insulating end of each adjusting block and are insulated, the two conductive sheets are respectively connected with a lead, one end of each lead is arranged in the insulating end of each adjusting block, the other end of each lead is led out from the end face, in the process of adjusting the position of the adjusting block, the adjusting block is provided with two conducting strips which are respectively contacted with the two terminals, and the adjusting block is also provided with a conducting end which is contacted with the two terminals, and the manufacturing method comprises the following steps: (1) injection molding of a matrix: adopting a closed mold, wherein the mold comprises an upper mold box and a lower mold box, the upper mold box and the lower mold box are matched to form a closed box body, the bottom of the lower mold box is provided with I-shaped lower mold cores with the same quantity as wiring modules of a base body, the upper mold box is provided with linear upper mold cores with the same quantity as the lower mold cores, the upper mold box is provided with injection molding holes and air holes, the upper mold box and the lower mold box are firstly matched, the upper mold cores and the lower mold cores are in one-to-one correspondence, the upper mold cores are propped against a middle beam of the lower mold cores, fluid plastics are injected from the injection molding holes, and the base body with terminal slots and slots of an adjusting block is; (2) manufacturing an adjusting block; (3) mounting an adjustment block to the base; the injection molding holes and the vent holes are formed in the top plate of the upper mold box, the number of the injection molding holes is the same as that of the upper mold cores, each upper mold core faces one injection molding hole, the injection molding holes corresponding to the adjacent upper mold cores are located on two sides of the upper mold core, the number of the vent holes is two, and the two vent holes are respectively formed in two opposite angles of the top plate of the upper mold box.
2. The method for manufacturing the current transformer polarity detection junction device according to claim 1, wherein: the number of the wiring modules is 3-6, all the wiring modules are arranged in a straight line shape, and two terminal slots of each wiring module and slots of the adjusting block are arranged in an I shape.
3. The method for manufacturing the current transformer polarity detection junction device according to claim 2, wherein: the slots of the adjusting block are communicated with the base body, the terminal slots are not communicated with the base body, and the notches of all the terminal slots are positioned on the same side of the base body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810331587.2A CN108646133B (en) | 2016-01-18 | 2016-01-18 | Manufacturing method of wiring device for detecting polarity of current transformer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610029187.7A CN105572430B (en) | 2016-01-18 | 2016-01-18 | A kind of current transformer Check up polarity termination and preparation method thereof |
| CN201810331587.2A CN108646133B (en) | 2016-01-18 | 2016-01-18 | Manufacturing method of wiring device for detecting polarity of current transformer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610029187.7A Division CN105572430B (en) | 2016-01-18 | 2016-01-18 | A kind of current transformer Check up polarity termination and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108646133A CN108646133A (en) | 2018-10-12 |
| CN108646133B true CN108646133B (en) | 2020-05-12 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610029187.7A Active CN105572430B (en) | 2016-01-18 | 2016-01-18 | A kind of current transformer Check up polarity termination and preparation method thereof |
| CN201810331587.2A Expired - Fee Related CN108646133B (en) | 2016-01-18 | 2016-01-18 | Manufacturing method of wiring device for detecting polarity of current transformer |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610029187.7A Active CN105572430B (en) | 2016-01-18 | 2016-01-18 | A kind of current transformer Check up polarity termination and preparation method thereof |
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| Country | Link |
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| CN (2) | CN105572430B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970345A (en) * | 2017-04-07 | 2017-07-21 | 国网浙江乐清市供电公司 | Portable type current transformer secondary connection polarity test device |
| WO2020038179A1 (en) * | 2018-08-24 | 2020-02-27 | 宁波舜宇光电信息有限公司 | Circuit board assembly and semi-finished product thereof, flood light, photographing module and application thereof |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3048295A1 (en) * | 1980-12-20 | 1982-07-08 | Erno Raumfahrttechnik Gmbh, 2800 Bremen | Connection device for automatic electrical test facility - has contact control element activated by cable proximity detector |
| CN101667510B (en) * | 2009-09-30 | 2012-06-27 | 郁晓亮 | Double-layer structure triphase module type magnetic latching relay |
| CN201804071U (en) * | 2010-08-20 | 2011-04-20 | 嵩县电业局 | Polarity tester for current transformer |
| CN202562967U (en) * | 2012-05-15 | 2012-11-28 | 珠海格力电器股份有限公司 | Rapid wiring device and testing system |
| CN102778666A (en) * | 2012-06-11 | 2012-11-14 | 湖北省电力公司武汉供电公司电能计量中心 | Wire connector for rapid verification of intelligent electric meter |
| CN203011948U (en) * | 2012-10-30 | 2013-06-19 | 武汉华源电力工程有限责任公司 | Current transformer characteristic test secondary connection device |
| CN103278790B (en) * | 2012-11-29 | 2016-12-28 | 杭州凯达电力建设有限公司 | A kind of current transformer ratio polarity high speed tester and method of testing |
| CN103259141B (en) * | 2013-03-30 | 2015-09-23 | 宁波硕达电子科技有限公司 | Connector of a kind of tool switch change-over formula structure and preparation method thereof |
| CN203224526U (en) * | 2013-04-07 | 2013-10-02 | 国家电网公司 | A high-voltage wire connector used for AC withstanding voltage |
| CN203232060U (en) * | 2013-04-27 | 2013-10-09 | 国家电网公司 | Insulation rod test wire connector |
| CN103344935B (en) * | 2013-05-10 | 2016-04-13 | 国家电网公司 | Full-automatic low-voltage current transformer test termination |
| CN203376434U (en) * | 2013-07-16 | 2014-01-01 | 国家电网公司 | A current transformer polarity verification apparatus |
| CN103472357B (en) * | 2013-08-23 | 2016-03-23 | 国家电网公司 | A kind of current transformer device for detecting polarity |
| CN103715525A (en) * | 2013-12-30 | 2014-04-09 | 重庆雷士照明有限公司 | Fast-inserting terminal block |
| JP6270618B2 (en) * | 2014-05-14 | 2018-01-31 | 三菱電機株式会社 | Connection conductor unit |
| CN204271321U (en) * | 2014-08-29 | 2015-04-15 | 广东华声电器股份有限公司 | A kind of American cross two insert |
| CN204271004U (en) * | 2014-12-19 | 2015-04-15 | 常熟开关制造有限公司(原常熟开关厂） | A kind of binding post of breaker of plastic casing |
-
2016
- 2016-01-18 CN CN201610029187.7A patent/CN105572430B/en active Active
- 2016-01-18 CN CN201810331587.2A patent/CN108646133B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN108646133A (en) | 2018-10-12 |
| CN105572430B (en) | 2018-09-28 |
| CN105572430A (en) | 2016-05-11 |
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Effective date of registration: 20200416 Address after: 350200 Fujian city of Fuzhou province Changle City Wu Hangxi Town Road No. 5 Building 6 No. 601 Applicant after: Liu Xiaobing Address before: 262700 Shandong city in Weifang Province, Shouguang City Street, Guangming Road San Jin Pu Garden City Sanyou border agency name Applicant before: Xin Xinghua |
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Effective date of registration: 20200428 Address after: 541400 Xiangyun Hotel, North Resource County Development Zone, Guilin City, Guangxi Zhuang Autonomous Region, 2-4 Floor Applicant after: SPIC GUANGXI JINZISHAN WIND ELECTRICITY Co.,Ltd. Address before: 350200 Fujian city of Fuzhou province Changle City Wu Hangxi Town Road No. 5 Building 6 No. 601 Applicant before: Liu Xiaobing |
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Granted publication date: 20200512 Termination date: 20220118 |