CN208014541U - A kind of voltage transformer - Google Patents
A kind of voltage transformer Download PDFInfo
- Publication number
- CN208014541U CN208014541U CN201820413613.1U CN201820413613U CN208014541U CN 208014541 U CN208014541 U CN 208014541U CN 201820413613 U CN201820413613 U CN 201820413613U CN 208014541 U CN208014541 U CN 208014541U
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- Prior art keywords
- fuse
- lid
- terminal box
- voltage transformer
- terminal
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Abstract
The utility model provides a kind of voltage transformer, including primary coil, secondary coil, iron core, shell, pedestal, the secondary coil is wrapped on the iron core, the primary coil is wrapped on secondary coil, the iron core is placed in the shell, filled with building body is poured in the shell, the pedestal is arranged in shell bottom end；The case top is provided with fuse cavity, and top is threaded with a lid, fuse is equipped in the fuse cavity；Fuse cavity top end side is provided with high tension terminal；The housing bottom is provided with a terminal box, and secondary wiring terminals are provided in the terminal box, a cover board is connected in the terminal box.The utility model by high tension terminal setting by, in fuse cavity side, being not required to dismounting high-voltgae pothead i.e. replaceable fuse；Waterproof construction is set in the terminal box at secondary wiring terminals, is connected using magnetism, had not only been achieved the purpose that waterproof but also facilitated patching operations.
Description
Technical field
The utility model is related to power system device field, more particularly to a kind of mutual induction of voltage being convenient for changing fuse
Device.
Background technology
Currently, in the dry-type voltage inductor of the mesohigh used in the power system, it is general itself to carry fuse, when
Dry-type voltage inductor fuses automatically when encountering overcurrent, overvoltage or internal fault, plays protection product or by product and edge
The effect of road isolation, but traditional fuse is cast in together with primary coil, secondary coil, annular core in layers of solid material
Face, non-dismountable, after fuse blows, entire dry-type voltage inductor declaration is scrapped, so more wasteful resource, and
And not environmentally.It is complicated although recently occurring that the mutual inductor of fuse can be replaced, replacement operation trouble, electrical contact
It is unreliable to connect, and interiors of products layout is unreasonable.In the structure of traditional voltage transformer, primary connection end is the outer of fuse
Contact end, the other end of fuse are connected with one end of primary coil, and high pressure enters through primary connection end, fuse in mutual inductor
Portion needs the high-voltgae pothead for connecting mutual inductor with primary connection end to disassemble, after replacement when needing replacing fuse
It reinstalls again, this kind of structure replacement process is complicated, a waste of time and manpower.It can not dismantle and once connect there is also some at present
The high-voltgae pothead of line end can replace the product of fuse, but its fuse is lateral setting, and such design method is easy
Cause to seep water at fuse cover board, causes high pressure primary coil side short-circuit, such harm is very big.
In addition, the secondary connection end of traditional voltage transformer be mostly it is exposed outside, by exposing to wind and rain, be easy to cause
Wiring loosening and damage be easy to cause secondary connection terminal shortcircuit under the immersion of rainwater, burn mutual inductor.Voltage currently on the market
The compartment of mutual inductor secondary connection end setting is mostly screw connecting structure, very inconvenient in physical cabling operation, and
Sealing at line outlet is often poor, and rainwater is easy to penetrate into from line outlet, causes secondary connection terminal shortcircuit.
Invention content
In consideration of it, the utility model proposes a kind of voltage transformer, by being arranged high tension terminal in fuse cavity
Side is not required to dismounting high-voltgae pothead i.e. replaceable fuse；It is connected by the way that spring is arranged on the lid being connect with fuse
Baffle, connect with the metal insert on fuse cavity, efficiently solve the problems, such as electrical contact connection it is insecure；And secondary
Waterproof construction is set in terminal box at connecting terminal, is connected using magnetism, had not only been achieved the purpose that waterproof but also facilitated wiring
Operation.
What the technical solution of the utility model was realized in：
A kind of voltage transformer, including primary coil, secondary coil, iron core, shell, pedestal, the secondary coil winding
On the iron core, the primary coil is wrapped on secondary coil, and the iron core is placed in the shell, is filled out in the shell
Filled with building body is poured, the pedestal is arranged in shell bottom end；The case top is provided with fuse cavity, the fuse cavity
It is inside provided with fuse spring, top is threaded with a lid, fuse, the fusing are equipped in the fuse cavity
Device is pressed on by the lid on the fuse spring, and the fuse spring is electrically connected with the primary coil；It is described
Fuse cavity top end side is provided with high tension terminal, and primary connection terminal, institute are provided on the high tension terminal end face
Primary connection terminal is stated to be electrically connected with the lid；The housing bottom is provided with a terminal box, is provided in the terminal box
Secondary wiring terminals, the secondary wiring terminals are electrically connected with secondary coil, and a cover board is connected in the terminal box.
Further, lid spring is provided in the lid, described lid spring one end is connect with lid, and the other end connects
It is connected to a baffle；The cover bottom is provided with gusset.
Further, the fuse cavity top end is equipped with metal insert, the metal insert and the primary connection
Terminal is electrically connected.
Further, the fuse containment portion is provided with several full skirts, and the full skirt is in the alternate arrangement of size.
Further, the edge of the terminal box is provided with crimping, and crimping direction is arranged outwardly, the terminal box
Both sides are provided with Wire joint.
Further, first magnetic insert of circle is provided on the end face of the crimping of the terminal box outwardly.
Further, at left and right sides of the cover board and upside is provided with crimping, and crimping direction is arranged inwardly, the cover board
Lower end is hatch frame.
Further, second magnetic insert of circle is provided on the inner side end of the cover board.
Compared with prior art, the utility model has the beneficial effects that：
(1) by the way that in fuse cavity side, it is i.e. replaceable molten to be not required to dismounting high-voltgae pothead for high tension terminal setting
Disconnected device, is convenient for the replacement of fuse；And fuse cavity is vertically arranged mode, rainwater can be effectively prevent to be penetrated into from lid
Fuse cavity causes high-pressure side short circuit and burns out fuse.
(2) baffle connected by the way that spring is arranged on the lid being connect with fuse, and is arranged on fuse cavity
Metal insert connects, and efficiently solves the problems, such as that electrical contact connection is insecure, and gusset is arranged in the bottom of lid, can be very
Good plays the role of waterproof.
(3) crimping waterproof construction is set on the terminal box at secondary wiring terminals and cover board, can effectively prevents rain
Water enters terminal box, and Wire joint is arranged in terminal box both sides, can be good at carrying out waterproof in the place of threading, effectively prevent
Rainwater enters terminal box, and magnetic insert is arranged in terminal box and cover board, is connected using magnetism, has both achieved the purpose that waterproof
Patching operations are facilitated again.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only the preferred reality of the utility model
Example is applied, it for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the front view of the utility model.
Fig. 2 is the sectional view along the directions I-I in Fig. 1.
Fig. 3 is the partial enlarged view of part A in Fig. 2.
Fig. 4 is the partial enlarged view of part B in Fig. 2.
Fig. 5 is the sectional view along the directions F-F in Fig. 2.
Fig. 6 is the decomposition diagram of the utility model.
In figure, 1 it is primary coil, 2 is secondary coil, 3 is iron core, 4 is shell, 5 is fuse cavity, 6 is pedestal, 7
For lid, 8 be fuse spring, 9 be fuse, 10 be primary connection terminal, 11 be secondary wiring terminals, 12 be terminal box,
13 be cover board, 14 be Wire joint, 15 for pour building body, 51 be metal insert, 52 be high tension terminal, 53 be full skirt, 71 be lid
Sub-spring, 72 be baffle, 73 be gusset, 121 be the first magnetic insert, 131 be the second magnetic insert.
Specific implementation mode
In order to be best understood from the utility model technology contents, four specific embodiments are provided below, and in conjunction with attached drawing to this
Utility model is described further.
Embodiment 1
Referring to Fig. 1~Fig. 2, a kind of voltage transformer, including primary coil 1, secondary coil 2, iron core 3, shell 4, pedestal
6, the secondary coil 2 is wrapped on the iron core 3, and the primary coil 1 is wrapped on secondary coil 2, primary coil 1 and two
It is insulated between secondary coil 2.The iron core 3 is placed in the shell 4, filled with building body 15 is poured in the shell 4, is poured
The material of building body 15 is epoxy resin so that iron core 3, primary coil 1 and secondary coil 2 insulate with shell 4.The pedestal
6 settings are provided with fuse cavity 5, fuse are provided in the fuse cavity 5 at 4 bottom end of shell, 4 top of the shell
Spring 8, top are threaded with a lid 7, fuse 9 are equipped in the fuse cavity 5, and the fuse 9 passes through institute
It states lid 7 to be pressed on the fuse spring 8, the fuse spring 8 is electrically connected with the primary coil 1；The fusing
5 top side of device cavity is provided with high tension terminal 52, and the high tension terminal is provided with primary connection terminal 10 on 52 end face,
The primary connection terminal 10 is electrically connected with the lid 7, by being arranged high tension terminal 52 in 5 side of fuse cavity,
When needing replacing fuse 9, it is not required to dismounting high-voltgae pothead i.e. replaceable fuse 9, is convenient for the replacement of fuse 9, and molten
Disconnected device 9 is arranged for vertical direction, can be good at carrying out waterproof；4 bottom of the shell is provided with a terminal box 12, the wiring
Secondary wiring terminals 11 are provided in box 12, the secondary wiring terminals 11 are electrically connected with secondary coil 2, in the terminal box 12
It is connected with a cover board 13.
The application method of the utility model：
Voltage transformer is connected to by pedestal 6 first needs position to be mounted, and high-voltage line is connected high tension terminal
Primary connection terminal 10 on 52 opens the cover board 13 in terminal box 12, it would be desirable to which the equipment of connection is connected to secondary connection end
On son 11, cover board 13 is covered, voltage transformer connection at this time is completed, and equipment can work normally.When equipment works normally, high pressure
The fuse 9 for being entered by primary connection terminal 10, and being connected by lid 7 enters mutual inductor, by primary coil 1 with it is secondary
2 mutual inductance of coil exports low pressure by secondary wiring terminals 11.It is led when voltage transformer encounters overcurrent, overvoltage or internal fault
When fuse 9 being caused to fuse automatically, the lid 7 on fuse cavity 5 is opened at this time, the fuse 9 to have fused is taken out, put into new
Fuse 9, tighten the replacement that lid 7 completes fuse 9.
A kind of voltage transformer provided in this embodiment, by being arranged high tension terminal 52 in 5 side of fuse cavity,
It is not required to dismounting high-voltgae pothead i.e. replaceable fuse 9, is convenient for the replacement of fuse 9, it is simple and quick；And fuse cavity
5 are vertically arranged mode, and rainwater can be effectively prevent to penetrate into fuse cavity 5 from lid 7 and cause high-pressure side short circuit and burn out
Fuse 9.
Embodiment 2
Referring to Fig. 3, the present embodiment and embodiment 1 difference lies in, lid spring 71 is provided in the lid 7, it is described
71 one end of lid spring is connect with lid 7, and the other end is connected with a baffle 72；7 bottom of the lid is provided with gusset 73.Pass through
Lid spring 71 is set, can ensure that baffle 72 is effectively connect with the metal insert 51 on fuse cavity 5, ensures connection
Reliability.The gusset 73 of 7 bottom of lid setting can stretch out step a distance on fuse cavity 5 when lid 7 covers tightly, and make
Obtain waterproof effect more preferably.
Preferably, 5 top of fuse cavity is equipped with metal insert 51, and the metal insert 51 once connects with described
Line terminals 10 are electrically connected.
The application method of the utility model：
When needing to install fuse, lid 7 is opened first, fuse 9 is put into fuse cavity 5, fuse 9
Bottom end is contacted with the fuse spring 8 being arranged in fuse cavity 5, closes the lid 7 at this time, the baffle 72 on lid 7 with it is molten
The tip contact of disconnected device 9, during screwing lid 7, baffle 72 is compressed and is contacted with metal insert 51, and lid 7 is revolved
Next baffle 72 is closely connect with metal insert 51, completes the installation of fuse 9 at this time.
Preferably, several full skirts 53 are provided with outside the fuse cavity 5, can effectively increase voltage transformer
Creepage distance, it is in the alternate arrangement of size to effectively prevent the generation of flashover, the full skirt 53, can effectively prevent collecting on full skirt 53
Dirt prevents the generation of pollution flashover.
A kind of voltage transformer provided in this embodiment, by the way that lid spring is arranged on the lid 7 being connect with fuse 9
The baffle 72 of 71 connections, connect with the metal insert 51 being arranged on fuse cavity 5, and it is unreliable to efficiently solve electrical contact connection
The problem of, and gusset 73 is set in the bottom of lid 7, it can be good at playing the role of waterproof.And in fuse cavity 5
The upper full skirt 53 that the alternate arrangement of size is arranged, increases creepage distance, and can effectively prevent dirt collection, prevents the hair of high pressure flashover
It is raw.
Embodiment 3
Referring to Fig. 4, the present embodiment the difference from example 2 is that, the edge of the terminal box 12 is provided with crimping,
Crimping direction is arranged outwardly, and the both sides of the terminal box 12 are provided with Wire joint 14.Crimping is L-shape, can effectively prevent rain
The entrance of water.Wire joint 14 is sealed for pair electric wire being connect with secondary wiring terminals 11, and electric wire passes through Wire joint
14, tighten the effect that Wire joint 14 can reach sealing.
Preferably, first magnetic insert of circle 121 is provided on the end face of the crimping of the terminal box 12 outwardly.Pass through magnetic pad
Piece is connect with cover board 13, and convenient for can quickly remove cover board 13 in wiring, magnetic insert connection can guarantee the close of terminal box 12 again
Feng Xing.
Preferably, 13 left and right sides of the cover board and upside are provided with crimping, and crimping direction is arranged inwardly, the cover board 13
Lower end be hatch frame.Crimping on cover board 13 is installed with the crimping cooperation in terminal box 12, plays good waterproof effect
Fruit effectively prevents the entrance of rainwater.And 13 lower end of cover board is designed as hatch frame, is inserted from top to bottom when installing cover board 13
It is connected in terminal box 12, it is simple and quick.Cover board 13 is transparent material, convenient for the company of observation secondary wiring terminals 11 and electric wire
Connect situation.
Preferably, second magnetic insert of circle 131 is provided on the inner side end of the cover board 13.Second magnetic insert 131 with
First magnetic insert 121 is attracted, and connection is reliable, easy disassembly, and magnetic insert connection can be good at solving in conjunction with the design structure of crimping
The problem of 12 waterproof of terminal box of having determined.
The application method of the utility model：
In 11 wiring of secondary wiring terminals, plate 13 of uncapping is taken out from lower to upper first, it would be desirable to which the electric wire of connection is passed through and connect
Electric wire is connect by the Wire joint 14 of 12 both sides of wire box with secondary wiring terminals 11, tightens Wire joint 14 after completing connection,
The sealing of electric wire is completed, at this time by the grafting from top to bottom of cover board 13, magnetic insert is attracted after grafting in place, completes secondary connect at this time
The patching operations of line terminals 11.
A kind of voltage transformer provided in this embodiment is set in terminal box 12 and cover board 13 at secondary wiring terminals 11
Crimping waterproof construction is set, can effectively prevent rainwater from entering terminal box 12, Wire joint 14, energy are set in 12 both sides of terminal box
It is enough to carry out waterproof in the place of threading well, it effectively prevent rainwater to enter terminal box 12, and in terminal box 12 and cover board 13
Upper setting magnetic insert is connected using magnetism, had not only achieved the purpose that waterproof but also facilitated patching operations.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of voltage transformer, which is characterized in that described secondary including primary coil, secondary coil, iron core, shell, pedestal
Coil is wrapped on the iron core, and the primary coil is wrapped on secondary coil, and the iron core is placed in the shell, described
Filled with building body is poured in shell, the pedestal is arranged in shell bottom end；The case top is provided with fuse cavity, described molten
It is provided with fuse spring in disconnected device cavity, top is threaded with a lid, fuse is equipped in the fuse cavity,
The fuse is pressed on by the lid on the fuse spring, and the fuse spring is electrically connected with the primary coil
It connects；Fuse cavity top end side is provided with high tension terminal, and primary connection is provided on the high tension terminal end face
Terminal, the primary connection terminal are electrically connected with the lid；The housing bottom is provided with a terminal box, in the terminal box
Secondary wiring terminals are provided with, the secondary wiring terminals are electrically connected with secondary coil, and a cover board is connected in the terminal box.
2. a kind of voltage transformer as described in claim 1, which is characterized in that be provided with lid spring, institute in the lid
It states lid spring one end to connect with lid, the other end is connected with a baffle；The cover bottom is provided with gusset.
3. a kind of voltage transformer as described in claim 1, which is characterized in that the fuse cavity top end is equipped with metal
Inserts, the metal insert are electrically connected with the primary connection terminal.
4. a kind of voltage transformer as described in claim 1, which is characterized in that the fuse containment portion is provided with several
Full skirt, the full skirt are in the alternate arrangement of size.
5. a kind of voltage transformer as described in claim 1, which is characterized in that the edge of the terminal box is provided with volume
Side, crimping direction are arranged outwardly, and the both sides of the terminal box are provided with Wire joint.
6. a kind of voltage transformer as claimed in claim 5, which is characterized in that on the end face of the crimping of the terminal box outwardly
It is provided with first magnetic insert of circle.
7. a kind of voltage transformer as described in claim 1, which is characterized in that at left and right sides of the cover board and upside is provided with
Crimping, crimping direction are arranged inwardly, and the lower end of the cover board is hatch frame.
8. a kind of voltage transformer as claimed in claim 7, which is characterized in that be provided with one on the inner side end of the cover board
Enclose the second magnetic insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820413613.1U CN208014541U (en) | 2018-03-26 | 2018-03-26 | A kind of voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820413613.1U CN208014541U (en) | 2018-03-26 | 2018-03-26 | A kind of voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208014541U true CN208014541U (en) | 2018-10-26 |
Family
ID=63890326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820413613.1U Active CN208014541U (en) | 2018-03-26 | 2018-03-26 | A kind of voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208014541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110895988A (en) * | 2019-12-05 | 2020-03-20 | 廊坊芳远新合电气有限公司 | Special voltage transformer of portable connects |
-
2018
- 2018-03-26 CN CN201820413613.1U patent/CN208014541U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110895988A (en) * | 2019-12-05 | 2020-03-20 | 廊坊芳远新合电气有限公司 | Special voltage transformer of portable connects |
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