CN106158294B - A kind of sealing device of wire connecting terminal of transformer - Google Patents
A kind of sealing device of wire connecting terminal of transformer Download PDFInfo
- Publication number
- CN106158294B CN106158294B CN201610721476.3A CN201610721476A CN106158294B CN 106158294 B CN106158294 B CN 106158294B CN 201610721476 A CN201610721476 A CN 201610721476A CN 106158294 B CN106158294 B CN 106158294B
- Authority
- CN
- China
- Prior art keywords
- connection terminal
- wire connection
- sealing element
- mutual inductor
- wire
- 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.)
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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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
- Insulators (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
A kind of sealing device of wire connecting terminal of transformer, including mutual inductor upper end, mutual inductor lower end, wire connection terminal, sealing element, the upper and lower side of the mutual inductor is cast using epoxy resin, it is characterised in that：In the connection place of sealing element and wire connection terminal, R type boss is provided on wire connection terminal；Baffle with rounded corners outside interior band groove is provided in the middle part of the sealing element；The sealing element lower end is provided with external screw thread, for coupling with the copper insert built in wire connection terminal, realizes the sealed attachment of sealing element and wire connection terminal.Sealing element can be made to combine closely with wire connection terminal contact surface, good seal performance, not only beautiful, small, the saving raw material that take up space, installation are firm, and prevent to make moist, rain erosion and other pollutants, it effectively prevent the generation of corona phenomenon, it can ensure the electric conductivity of wire connection terminal, so as to ensure the measurement accuracy of measuring instrumentss, extend the service life of mutual inductor.
Description
Technical field
The present invention relates to mutual inductors, especially relate to a kind of sealing of wire connecting terminal of transformer
Device.
Background technology
Conducting rod is provided in the primary connection terminal of mutual inductor, conducting rod couples with wiring cylinder, wiring cylinder and mutual inductor
In first winding connection.The primary connection terminal original wire connection terminal head of mutual inductor of the prior art is socketed with sealing
Synapsis is platform and groove, although sealing element setting is very big, wire connection terminal head cover is entered, the connection mode of this structure,
Not only unsightly, big, the waste raw material that take up space, the unsteady phenomenon of installation occiput weight, and make moist and rain erosion
After easily flow into conducting rod, extraneous particle and steam are entered in wiring cylinder so that the electric conductivity of primary connection terminal
Decline, be susceptible to corona phenomenon, so as to cause the rapid aging of insulation of mutual inductor, reduce the service life of mutual inductor, and
So that the contact resistance of wiring cylinder and conducting rod increases, calorific value is big so that electric energy power attenuation is big, so as to cause measuring instrumentss
Measurement accuracy decline the problem of.
Invention content
Present invention aim to provide a kind of sealing device of wire connecting terminal of transformer, it can overcome the prior art
Existing problem above.The object of the present invention is achieved like this, a kind of sealing device of wire connecting terminal of transformer, including mutual inductance
Device upper end, mutual inductor lower end, wire connection terminal, sealing element, the upper and lower side of the mutual inductor are cast using epoxy resin,
It is characterized in that：In the connection place of sealing element and wire connection terminal, R type boss is provided on wire connection terminal；In the sealing element
Portion is provided with baffle with rounded corners outside interior band groove；The sealing element lower end is provided with external screw thread, for in wire connection terminal
The sealed attachment of sealing element and wire connection terminal is realized in the copper insert connection put.
The groove of the middle part setting of the sealing element is covered on the R type boss set on wire connection terminal.
The R type boss set on the wire connection terminal is made of silicon rubber.
The mutual inductor upper end includes two wire connection terminals being symmetrically tilted a certain angle, and applies one layer of silicon rubber on it
Glue.
The silicon rubber belongs to the monocomponent room-temperature cured silicon rubber of ketoxime removing type using 9132 boards of saving the situation.
The present invention is provided with R type boss on the connection place of sealing element and wire connection terminal, wire connection terminal, is set on wire connection terminal
The R type boss put is made of silicon rubber, is provided with baffle with rounded corners outside interior band groove in the middle part of sealing element, in sealing element
The groove of portion's setting is covered on the R type boss set on wire connection terminal；Sealing element can be made closely to be tied with wire connection terminal contact surface
It closes, good seal performance, it is not only beautiful, take up space that small, to save raw material, installation firm, and prevented to make moist, rain erosion
And other pollutants, the generation of corona phenomenon is effectively prevent, can ensure the electric conductivity of wire connection terminal, so as to ensure measuring instrument
The measurement accuracy of table extends the service life of mutual inductor.
Description of the drawings
Fig. 1 is mutual inductor structure diagram of the present invention；
Fig. 2 is Fig. 1 D-D to wire connection terminal head construction schematic diagram；
Fig. 3 is sealing shroud structure diagram of the present invention；
Fig. 4 is wire connection terminal head of the present invention and sealing shroud assembling structure schematic diagram；
Fig. 5 is prior art D-D to wire connection terminal head construction schematic diagram；
Fig. 6 is prior art wire connection terminal head and sealing shroud assembling structure schematic diagram；
1. mutual inductor lower end, 2. mutual inductor upper ends, 3. wire connection terminals, 4. sealing elements.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings；
A kind of sealing device of wire connecting terminal of transformer, including mutual inductor upper end 2, mutual inductor lower end 1, wire connection terminal 3, close
Sealing 4, the upper and lower side of the mutual inductor are cast using epoxy resin, it is characterised in that：In sealing element 4 and wire connection terminal
3 connection place is provided with R type boss on wire connection terminal 3；The middle part of the sealing element 4 is provided with interior band groove tyre fillet
Baffle；4 lower end of sealing element is provided with external screw thread, for coupling with the copper insert built in wire connection terminal 3；Realize sealing
Part（4）With wire connection terminal（3）Sealed attachment.
The groove of the middle part setting of the sealing element 4 is covered on the R type boss set on wire connection terminal 3.
The R type boss set on the wire connection terminal 3 is made of silicon rubber.
The mutual inductor upper end 2 includes two wire connection terminals 3 being symmetrically tilted a certain angle, and applies one layer of silicon on it
Rubber.
The mutual inductor upper end（2）The wire connection terminal being symmetrically tilted a certain angle including two（3）, and one is applied on it
Layer silicon rubber.
The silicon rubber belongs to the monocomponent room-temperature cured silicon rubber of ketoxime removing type using 9132 boards of saving the situation.
When it is implemented, the silicon rubber that the present invention uses is 9132 boards of saving the situation, belong to the monocomponent room-temperature cured silicon of ketoxime removing type
Rubber.（Original name HT903) it is the paste heat-resistance type organosilicon joint sealant made of special silastic material is basic material,
Its distinguishing feature is：With excellent temperature tolerance, can be used for a long time in the range of -60~315 DEG C.It is also good with cementability,
Moisture-proof, antidetonation, Inverter fed motor, tracking-resistant and ageing-resistant performance are widely used in bonding and sealing that heatproof requires high component.Mutually
Sensor upper end, lower end use epoxy resin cast molding, and copper insert is built-in in the wire connection terminal of the mutual inductor upper end.Institute
Internal thread is provided in the copper insert stated.Then cast molding mutual inductor upper end after cooling, rear surface are cleaned out.Institute
The top of mutual inductor upper end wire connection terminal after the casting stated is platform, then puts and positions in a mold, the platform of wire connection terminal
Upwards；On the tip platform of wire connection terminal, silicon rubber is squeezed under room temperature, silicon rubber boss is fixed to, is taken out after dry, mutual
Sensor upper end applies one layer of silicon rubber.Make silicon rubber boss on wire connection terminal and mutual inductor upper end is stronger is complex as a whole.
So as to preferably prevent mutual inductor from making moist, rain erosion and other pollutants, effectively prevent the generation of corona phenomenon, can ensure
The electric conductivity of wire connection terminal so as to ensure the measurement accuracy of measuring instrumentss, extends the service life of mutual inductor.
Claims (1)
1. a kind of sealing device of wire connecting terminal of transformer, including mutual inductor upper end（2）, mutual inductor lower end（1）, wire connection terminal
（3）, sealing element（4）, the upper and lower side of the mutual inductor cast using epoxy resin, it is characterised in that：In sealing element（4）
With wire connection terminal（3）Connection place, wire connection terminal（3）On be provided with R type boss；The sealing element（4）Middle part be provided with
Baffle with rounded corners outside interior band groove；The sealing element（4）Lower end is provided with external screw thread, is used for and wire connection terminal（3）It is built-in
Copper insert connection；Realize sealing element（4）With wire connection terminal（3）Sealed attachment；The sealing element（4）Middle part setting
Groove cover on wire connection terminal（3）On the R type boss of upper setting；The wire connection terminal（3）The R type boss of upper setting is to use
Made of silicon rubber；The mutual inductor upper end（2）The wire connection terminal being symmetrically tilted a certain angle including two（3）, and at it
One layer of silicon rubber of upper painting；The silicon rubber belongs to the monocomponent room-temperature cured silicon rubber of ketoxime removing type using 9132 boards of saving the situation
Glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610721476.3A CN106158294B (en) | 2016-08-25 | 2016-08-25 | A kind of sealing device of wire connecting terminal of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610721476.3A CN106158294B (en) | 2016-08-25 | 2016-08-25 | A kind of sealing device of wire connecting terminal of transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106158294A CN106158294A (en) | 2016-11-23 |
| CN106158294B true CN106158294B (en) | 2018-06-22 |
Family
ID=57341913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610721476.3A Active CN106158294B (en) | 2016-08-25 | 2016-08-25 | A kind of sealing device of wire connecting terminal of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106158294B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202534494U (en) * | 2012-03-30 | 2012-11-14 | 大连北方互感器集团有限公司 | Outdoor voltage transformer with fuse protector |
| CN202991415U (en) * | 2012-12-29 | 2013-06-12 | 台州市协丰机械有限公司 | Electric diaphragm pump |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57162412A (en) * | 1981-03-31 | 1982-10-06 | Nec Home Electronics Ltd | Terminal fitting guide |
| CN201438411U (en) * | 2009-08-05 | 2010-04-14 | 大连北方互感器集团有限公司 | Contact finger-type voltage mutual inducer used for voltage mutual inducer trolley |
| CN201489992U (en) * | 2009-09-04 | 2010-05-26 | 大连北方互感器集团有限公司 | Three-phase cable fuse voltage transformer |
| CN204832425U (en) * | 2015-07-22 | 2015-12-02 | 江苏靖江互感器厂有限公司 | Insulation test device |
-
2016
- 2016-08-25 CN CN201610721476.3A patent/CN106158294B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202534494U (en) * | 2012-03-30 | 2012-11-14 | 大连北方互感器集团有限公司 | Outdoor voltage transformer with fuse protector |
| CN202991415U (en) * | 2012-12-29 | 2013-06-12 | 台州市协丰机械有限公司 | Electric diaphragm pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106158294A (en) | 2016-11-23 |
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| GR01 | Patent grant |