CN218826610U - Voltage transformer - Google Patents
Voltage transformer Download PDFInfo
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- CN218826610U CN218826610U CN202222997526.4U CN202222997526U CN218826610U CN 218826610 U CN218826610 U CN 218826610U CN 202222997526 U CN202222997526 U CN 202222997526U CN 218826610 U CN218826610 U CN 218826610U
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- fuse
- shielding net
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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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Abstract
The utility model discloses a voltage transformer, including the fuse, fuse top shielding net, fuse end shielding net, the iron core, primary coil and secondary coil, fuse top shielding net cover is located outside the fuse top, fuse end shielding net cover is located outside the fuse is terminal, secondary coil cover is located on the iron core, the primary coil cover is located on the secondary coil, fuse top shielding net, fuse end shielding net, the iron core, primary coil and secondary coil outer pouring have the epoxy shell, the chamber bottom is equipped with a terminal light cap in an A end, a terminal light cap upper end is equipped with a pressure equalizing cover, a terminal light cap passes through a terminal pin joint fuse top, the fuse end passes through a primary coil pin joint primary coil, the interior cone cavity of cone is equipped with insulating vexed head, epoxy shell surface is equipped with the aluminium-sprayed shell. The utility model discloses can avoid producing discharge phenomenon, improve the security.
Description
Technical Field
The utility model relates to a mutual-inductor technical field especially relates to a voltage transformer.
Background
With the development of switchgear technology, gas-filled cabinets appeared. The gas-filled cabinet seals the equipment such as a circuit breaker, an earthing switch, a disconnecting switch and the like in a gas chamber filled with sulfur hexafluoride or other insulating gas so as to ensure the insulating property of the switch equipment. The inflatable cabinet has the characteristics of compact structure, flexible operation, reliable interlocking and the like, and can provide satisfactory technical schemes for various application occasions (particularly places with severe environment) and different user requirements. The traditional voltage transformer adopts an exposed wire to be connected with the inflatable cabinet body, and because the wire is exposed, after once electrification, one end of high voltage is easy to generate a discharge phenomenon, so that the safety is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a voltage transformer to solve the problem that above-mentioned prior art exists, avoid producing discharge, improve the security.
In order to achieve the above purpose, the utility model provides a following scheme:
the utility model provides a voltage transformer, including fuse, fuse top shielding net, the terminal shielding net of fuse, iron core, primary coil and secondary coil, fuse top shielding net cover is located outside the fuse top, fuse end shielding net cover is located outside the fuse end, the iron core with the fuse interval sets up, the secondary coil cover is located on the iron core, the primary coil cover is located on the secondary coil, fuse top shielding net the terminal shielding net of fuse the iron core primary coil with the outer pouring of secondary coil has the epoxy shell, fuse top shielding net keeps away from fuse end shielding net one side be equipped with the interior cone cavity of a A end on the epoxy shell, cone cavity bottom is equipped with a terminal light cap in a A end, the interior cone cavity of a A end is used for inserting and connecting of external shielded cable a terminal light cap, a terminal light cap upper end is equipped with a pressure equalizing cover, a terminal light cap is through a terminal pin connection the fuse top, the fuse end is through a coil pin connection the fuse coil, the fuse is equipped with a terminal wire connection the terminal shielding net the terminal the plug is equipped with the interior cone shell of epoxy in the epoxy shell, the outer surface is covered in the installation bottom plate, the aluminium spray head shell, the epoxy shell is covered in the installation bottom plate, the aluminium spray head is covered in the installation shell, the epoxy shell.
Preferably, one end of the fuse tail end shielding net, which is far away from the fuse starting end shielding net, is connected with a copper sleeve, a bulkhead shielding net is sleeved outside the copper sleeve, a copper sleeve plug is arranged in the copper sleeve, the copper sleeve plug is positioned between the insulating bulkhead and the fuse, and the insulating bulkhead is fixed on the epoxy resin shell through a bolt; one end of a primary coil lead is welded on the primary coil, the other end of the primary coil lead is welded on the fuse tail end shielding net, the fuse tail end shielding net is connected with the copper sleeve in a welding mode, and the copper sleeve plug is screwed into the copper sleeve and contacts with the fuse.
Preferably, a bottom insert is arranged at the bottom of the aluminum-sprayed shell, and the mounting bottom plate is fixedly connected to the bottom insert through a fixing screw.
Preferably, each surface of the outer surface of the aluminum-sprayed shell, except the bottom surface, is sprayed with black protective paint.
Preferably, a secondary outgoing line metal sleeve and a primary N outgoing line metal sleeve are arranged on the aluminum spraying shell, a secondary outgoing line silica gel plug and a primary N outgoing line silica gel plug are respectively arranged in the secondary outgoing line metal sleeve and the primary N outgoing line metal sleeve, a secondary lead and a primary N lead are respectively led out from lead holes of the secondary outgoing line silica gel plug and the primary N outgoing line silica gel plug, and gaps of the lead holes are sealed by liquid silica gel.
Preferably, the primary N lead is a phi 9mm silica gel cable, and the secondary lead is 4mm 2 And BVR lead wire.
Preferably, the wiring terminal of the secondary lead is 4mm 2 And (5) pin type cold pressing terminals.
Preferably, a screw fastener is embedded in one end of the fuse starting end shielding net far away from the fuse tail end shielding net, a tower spring is arranged in the fuse starting end shielding net and is fixedly connected to the screw fastener through a screw, the fuse starting end and the tower spring are in contact connection to form a conductive path, and two ends of a primary terminal lead are respectively welded to the primary terminal light cap and the screw.
Preferably, the secondary coil is sleeved on the iron core through an insulating framework, and a main insulating layer is arranged between the primary coil and the secondary coil.
The utility model discloses for prior art gain following technological effect:
the utility model provides a voltage transformer, with a A end set to interior taper cavity structure, adopt the mode of connection that interior taper cable and an A end interior taper cavity link together with external equipment, the fuse rear end adopts insulating bulkhead sealed, and it is sealed with fuse top shielding net, the terminal shielding net of fuse, iron core, primary coil and secondary coil pouring through the epoxy shell, the product outside is equipped with the aluminium spraying shell, the whole ground connection of aluminium spraying shell, thereby make after a circular telegram, can not produce phenomenons of discharging, improve its security performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a voltage transformer provided by the present invention;
fig. 2 is a top view of the voltage transformer provided by the present invention;
fig. 3 is a bottom view of the voltage transformer provided by the present invention;
fig. 4 is a left side view of the voltage transformer provided by the present invention;
in the figure: 1-fuse, 2-fuse initial end shielding net, 3-fuse tail end shielding net, 4-iron core, 5-primary coil, 6-secondary coil, 7-epoxy resin shell, 8-primary A end inner conical cavity, 9-primary terminal light cap, 10-primary voltage-equalizing cover, 11-primary terminal lead, 12-primary coil lead, 13-choke plug inner conical cavity, 14-insulating choke plug, 15-aluminum spraying shell, 16-mounting bottom plate, 17-copper sleeve, 18-choke plug shielding net, 19-copper sleeve choke plug, 20-bolt, 21-foot insert, 22-fixing screw, 23-secondary outgoing metal sleeve, 24-primary N outgoing metal sleeve, 25-secondary lead, 26-primary N lead and 27-insulating framework.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a voltage transformer to solve the problem that prior art exists, avoid producing discharge, improve the security.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1-4, this embodiment provides a voltage transformer, including fuse 1, fuse head shielding net 2, fuse end shielding net 3, iron core 4, primary coil 5 and secondary coil 6, fuse head shielding net 2 covers outside fuse 1 head, fuse end shielding net 3 covers outside fuse 1 end, iron core 4 sets up with fuse 1 interval, secondary coil 6 covers on iron core 4, primary coil 5 covers on secondary coil 6, fuse head shielding net 2, fuse end shielding net 3, iron core 4, primary coil 5 and secondary coil 6 outer pouring have epoxy shell 7, fuse head shielding net 2 keeps away from epoxy shell 7 on fuse end shielding net 3 side and is equipped with primary a-end inner cone cavity 8, primary a-end inner cone cavity 8 bottom is equipped with primary terminal light cap 9, primary a-end inner cone cavity 8 is used for the insertion of external cable and connects primary terminal light cap 9, primary terminal light cap 9 upper end is equipped with primary pressure equalizing cover 10, primary terminal light cap 9 passes through primary fuse 11 lead wire, fuse lead wire connects primary fuse 1 and is connected to the outer surface of epoxy shell through epoxy shell 15, the primary terminal light cap 16, the inner cone shell 7 is equipped with the outer surface of epoxy shell of installing in the epoxy shell 13, the primary end shielding net 3, the primary end inner cone shell is equipped with the epoxy shell 13 in the primary end shielding net 16.
Voltage transformer in this embodiment sets up the interior taper cavity structure of a time A end to interior taper cavity 8 promptly, the mode of connection that the interior taper cavity of external equipment adoption interior taper cable and a time A end links together, 1 rear end adoption of fuse is insulating vexed head 14 sealed, and through epoxy shell with fuse top shielding net 2, fuse end shielding net 3, iron core 4, primary coil 5 and secondary coil 6 pouring are sealed, the product outside is equipped with spouts aluminium shell 15, spout 15 whole grounds of aluminium shell, thereby make voltage transformer after once switching on the power, can not produce discharge phenomenon, improve its security performance.
In the embodiment, one end of the fuse tail end shielding net 3, which is far away from the fuse start end shielding net 2, is connected with a copper sleeve 17, a choke plug shielding net 18 is sleeved outside the copper sleeve 17, a copper sleeve choke plug 19 is arranged in the copper sleeve 17, the copper sleeve choke plug 19 is positioned between an insulating choke plug 14 and the fuse 1, and the insulating choke plug 14 is fixed on an epoxy resin shell 7 through a bolt 20; one end of a primary coil lead 12 is welded on a copper foil of the primary coil, the other end of the primary coil lead is welded on a fuse tail end shielding net 3, the fuse tail end shielding net 3 is connected with a copper sleeve 17 in a welding mode, and a copper sleeve plug 19 is screwed into the copper sleeve 17 and contacts with the fuse 1, so that the tail end of the fuse 1 is connected with the primary coil 5. The primary coil lead 12 is a spring lead.
In this embodiment, the bottom of the aluminum-sprayed housing 15 is provided with a bottom insert 21, and the mounting base plate 16 is fixedly connected to the bottom insert 21 through a fixing screw 22, so that the mounting is convenient.
In this embodiment, black protective paint is sprayed on each surface of the outer surface of the aluminum-sprayed shell 15 except the bottom surface to protect the aluminum-sprayed shell 15.
In this embodiment, the aluminum-sprayed housing 15 is provided with a secondary outgoing line metal sleeve 23 and a primary N outgoing line metal sleeve 24, the secondary outgoing line metal sleeve 23 and the primary N outgoing line metal sleeve 24 are respectively provided with a secondary outgoing line silicone plug and a primary N outgoing line silicone plug, the secondary lead 25 and the primary N lead 26 are respectively led out from lead holes of the secondary outgoing line silicone plug and the primary N outgoing line silicone plug, and gaps of the lead holes are sealed by liquid silicone rubber, so that after the secondary lead 25 and the primary N lead 26 are led out, epoxy resin can be sealed and does not leak when a product is poured. The secondary lead 25 is drawn from the primary coil 6, and the primary N lead 26 is soldered to the copper foil of the primary coil 5, and is drawn out again, both of which are exposed 500mm from the casting (epoxy resin case 7).
In this embodiment, the first N lead 26 is a silica gel cable with a diameter of 9mm, the length is usually 3.5m, and the second lead 25 is 4mm 2 BVR lead wire, length is usually 5m, the specific length of the primary N lead wire 26 and the secondary lead wire 25 can be determined according toThe actual needs of the customer.
In this embodiment, the terminal of the secondary lead 25 is 4mm 2 The pin type cold pressing terminal is connected with secondary equipment by adopting the lengthened secondary lead 25, the requirement of secondary special pin type wiring is met, the length of the secondary lead influences the internal resistance of a coil, an intelligent protection device between the wiring terminals of the secondary lead is equivalent to a load, and the sum of the requirements is necessary to enable the error test and the intelligent protection of the whole voltage transformer to meet the operation requirement of the existing power grid.
In this embodiment, a screw fastener is embedded in the end of the fuse start-end shielding mesh 2 away from the fuse tail-end shielding mesh 3, the tower spring is arranged in the fuse start-end shielding mesh 2 and is fixedly connected to the screw fastener through a screw, the start end of the fuse 1 is in contact with the tower spring to form a conductive path, and two ends of the primary terminal lead 11 are respectively welded to the primary terminal light cap 9 and the screw. Wherein, the primary terminal lead 11 adopts the spring lead, the inner cone cavity 13 of the bulkhead is used for installing the fuse 1 from this place, then the copper sleeve plug 19 is screwed on to block the fuse 1, then the insulating bulkhead 14 is inserted into the inner cone cavity 13 of the bulkhead to complete the sealing work at this place.
In this embodiment, the secondary coil 6 is sleeved on the iron core 4 through the insulating framework 27, and a main insulating layer is arranged between the primary coil 5 and the secondary coil 6, wherein the main insulating layer is insulated by capacitor insulating paper.
The product is not influenced by external environmental factors such as dirt, humidity, altitude and the like, is simple to maintain, has long secondary wiring, and can finish remote supervision, remote control and intelligent protection. The primary winding (primary coil 5) adopts 3-section winding, and the operation requirement of low field intensity of products is ensured. The iron core adopts the design of low magnetic density, has strengthened the anti overvoltage ability of product. The design that a built-in fuse is adopted, a special shielding net and a choke plug shielding net are additionally arranged at the initial end and the tail end of the fuse, and a pressure equalizing cover is additionally arranged at the lower end of an inner conical cavity at the primary A end well balances the internal and external field intensity of a product.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for those skilled in the art, the idea of the present invention may be changed in the specific embodiments and the application range. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. A voltage transformer, characterized by: including fuse, fuse top shielding net, fuse end shielding net, iron core, primary coil and secondary coil, fuse top shielding net cover is located outside the fuse top, fuse end shielding net cover is located outside the fuse end, the iron core with the fuse interval sets up, the secondary coil cover is located on the iron core, primary coil cover is located on the secondary coil, fuse top shielding net the fuse end shielding net the iron core primary coil with the outer pouring of secondary coil has the epoxy shell, fuse top shielding net keeps away from fuse end shielding net one side be equipped with an A end interior stifle chamber on the epoxy shell, a A end interior stifle chamber bottom is equipped with a terminal light cap, an A end interior stifle chamber is used for inserting of external interior taper cable and is connected primary terminal light cap, primary terminal light cap upper end is equipped with once all presses the cover, primary terminal light cap is through a terminal pin connection fuse top, fuse end is through a coil pin connection primary coil, fuse end shielding net is equipped with the fuse end shielding net one side the interior stifle of epoxy shell is equipped with the aluminium spray head shell in the installation of the aluminium cone, spout the ground connection bottom plate in the installation.
2. The voltage transformer of claim 1, wherein: one end of the fuse tail end shielding net, which is far away from the fuse starting end shielding net, is connected with a copper sleeve, a choke plug shielding net is sleeved outside the copper sleeve, a copper sleeve plug is arranged in the copper sleeve, the copper sleeve plug is positioned between the insulating choke plug and the fuse, and the insulating choke plug is fixed on the epoxy resin shell through a bolt; one end of a primary coil lead is welded on the primary coil, the other end of the primary coil lead is welded on the fuse tail end shielding net, the fuse tail end shielding net is connected with the copper sleeve in a welding mode, and the copper sleeve plug is screwed into the copper sleeve and contacts with the fuse.
3. The voltage transformer of claim 1, wherein: the bottom of the aluminum spraying shell is provided with a bottom foot insert, and the mounting bottom plate is fixedly connected to the bottom foot insert through a fixing screw.
4. The voltage transformer of claim 1, wherein: and black protective paint is sprayed on each surface of the outer surface of the aluminum spraying shell except the bottom surface.
5. The voltage transformer of claim 1, wherein: the aluminum-sprayed shell is provided with a secondary outgoing line metal sleeve and a primary N outgoing line metal sleeve, a secondary outgoing line silica gel plug and a primary N outgoing line silica gel plug are respectively arranged in the secondary outgoing line metal sleeve and the primary N outgoing line metal sleeve, a secondary lead and a primary N lead are respectively led out from lead holes of the secondary outgoing line silica gel plug and the primary N outgoing line silica gel plug, and gaps of the lead holes are sealed by liquid silica gel.
6. The voltage transformer of claim 5, wherein: the primary N lead is a phi 9mm silica gel cable, and the secondary lead is 4mm 2 And BVR lead wire.
7. The voltage transformer of claim 5, wherein: the wiring terminal of the secondary lead is 4mm 2 And (6) pin cold pressing the terminal.
8. The voltage transformer of claim 1, wherein: the fuse top end shielding net is far away from one end of the fuse tail end shielding net is embedded with a screw fastener, a tower spring is arranged in the fuse top end shielding net and is fixedly connected onto the screw fastener through a screw, the fuse top end and the tower spring are in contact connection to form a conductive path, and two ends of a primary terminal lead are respectively welded onto the primary terminal light cap and the screw.
9. The voltage transformer of claim 1, wherein: the secondary coil is sleeved on the iron core through an insulating framework, and a main insulating layer is arranged between the primary coil and the secondary coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222997526.4U CN218826610U (en) | 2022-11-11 | 2022-11-11 | Voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222997526.4U CN218826610U (en) | 2022-11-11 | 2022-11-11 | Voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218826610U true CN218826610U (en) | 2023-04-07 |
Family
ID=87041935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222997526.4U Active CN218826610U (en) | 2022-11-11 | 2022-11-11 | Voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218826610U (en) |
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2022
- 2022-11-11 CN CN202222997526.4U patent/CN218826610U/en active Active
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