CN110010330A - A kind of guide tracked closed loop single-phase miniature current transformer - Google Patents
A kind of guide tracked closed loop single-phase miniature current transformer Download PDFInfo
- Publication number
- CN110010330A CN110010330A CN201910294857.1A CN201910294857A CN110010330A CN 110010330 A CN110010330 A CN 110010330A CN 201910294857 A CN201910294857 A CN 201910294857A CN 110010330 A CN110010330 A CN 110010330A
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- China
- Prior art keywords
- card slot
- lead
- closed loop
- casing
- terminal
- 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
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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
- H01F27/02—Casings
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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
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- 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
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- 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
-
- 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
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- 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
- H01F27/2847—Sheets; Strips
- H01F27/2852—Construction of conductive connections, of leads
-
- 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
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- 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
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F2027/408—Association with diode or rectifier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a kind of guide tracked closed loop single-phase miniature current transformers, including transformer casing；Transformer casing is involuted by left outside shell and right casing, secondary coil is horizontally arranged in transformer casing, it is laterally worn in the centre bore of secondary coil and is connected to a copper bar, and one end of a copper bar is connected with the lead connect on the transformer casing is worn, the other end is connected with a terminal；Secondary coil is equipped with lead-out wire, lead-out wire and the circuit board electrical connection being mounted in the transformer casing；Diode and secondary output terminals are housed, secondary output terminals are 180 degree 2PIN socket, and diode is connected in parallel between lead-out wire and secondary output terminals by wiring board on wiring board；The secondary output of the present invention uses 2PIN socket, secondary lead wires can plug, mutual inductor and lead can separate and pack, and transportational process be less likely to be damaged, and with lead when due to production, mutual inductor production efficiency is higher, and on-site maintenance needs thread-changing to be more convenient.
Description
Technical field
The present invention relates to transformer technical field, a kind of guide tracked closed loop single-phase miniature current transformer in particular.
Background technique
Current transformer principle is according to electromagnetic induction principle.Current transformer is the iron core and winding group by being closed
At.Its first side winding the number of turns is seldom, goes here and there in the route for the electric current for needing to measure, therefore it often has all electricity of route
Stream flows through, and secondary side winding turn ratio is more, is serially connected in measuring instrumentss and protective loop, current transformer at work, it
Secondary side circuit be closure, therefore the impedance very little of measuring instrumentss and protective loop series coil, current transformer always
Working condition close to short circuit.Current transformer is primary side high current to be converted into secondary side low current use secondary side
It can not open a way.
Most closed loop single-phase miniature current transformer mainly has the disadvantage that currently on the market
1, most of Current Transformer Secondary output lead is directly led out with the general line of UL1007, and lead is longer, packaging
Inconvenience, transportational process easily cause lead damaged, with lead when mutual inductor produces, cause assembly, examine, encapsulating inconvenience,
Production efficiency is low, to increase cost, in addition on-site maintenance is inconvenient.
2, most of current transformer does not have open-circuit-protection, since there are many secondary the number of turns of mutual inductor, if installation personnel is grasped
Work accidentally opens a way mutual inductor secondary side, and open-circuit voltage can damage equipment and personal safety.
3, most of current transformer installation, which is adopted, is screwed, and transformer casing needs to do the fixed structure of screw, and
It needs to drill on the cabinet, so the space occupied is big when installation.
4, most of current transformer is perforation structure, and one time cable is passed through from interstitial hole, due to the limitation in aperture, works as line
Cable can not pass through when thicker, and safeguard also inconvenience.
Summary of the invention
It is high that it is an object of the invention to a kind of measurement accuracy, easy for installation, convenient for production, and secondary output lead can plug
Guide tracked closed loop single-phase miniature current transformer.
In order to overcome above-mentioned defect in the prior art the present invention adopts the following technical scheme:
The object of the present invention is achieved like this: a kind of guide tracked closed loop single-phase miniature current transformer, including mutual inductor
Shell, a lead, a copper bar, a terminal, secondary coil, wiring board, diode, secondary output terminals, secondary output
Lead.
Wherein: the transformer casing is involuted by left outside shell and right casing；Laterally it is arranged in the transformer casing
There is secondary coil, laterally worn in the centre bore of the secondary coil and be connected to a copper bar, and one end of a copper bar is equipped with wiring
It holds and wears the lead connect on the transformer casing and be connected, the other end is connected with a terminal.
Further, the secondary coil is equipped with lead-out wire, lead-out wire and the route being installed in the transformer casing
Plate electrical connection.
Further, the bottom of the right casing is provided with guide rail card slot.
Further, diode and secondary output terminals are housed, the secondary output terminals are 180 degree on the wiring board
2PIN socket, the diode are stamp-mounting-paper diode, and the diode is connected in parallel on the lead-out wire and secondary defeated by wiring board
Out between terminal.
Further, a terminal is a frame-type structure, is equipped with a removable fasteners in the frame-type structure, described
One end of copper bar is inserted into the frame-type structure an of terminal.
Further, a terminal upper end is provided with threaded hole, and the screw is screwed in once by the threaded hole
On terminal, a terminal is installed in a terminal card slot of the right casing.
Further, once copper bar card slot is set in the transformer casing, is provided on a copper bar card slot
For placing first limited mouth an of copper bar；Setting once terminal card slot in the shell, on a terminal card slot
It is provided with the second limited mouth for placing a terminal.
Further, once down-lead card slot is set in the transformer casing, is provided on a lead card slot
For placing the third limited mouth an of lead；Secondary coil card slot, the secondary coil are provided in the transformer casing
The 4th limited mouth for placing secondary coil is provided on card slot.
Further, it is provided with wiring board card slot in the transformer casing, is provided with and is used on the wiring board card slot
Place the 5th limited mouth of wiring board.The transformer casing is internally provided with secondary output terminals card slot, the secondary output
Terminal card slot is provided with the 6th limited mouth, positions when for placing secondary output terminals to it, in the transformer casing
Portion is provided withScrew card slot,Screw card slot is provided with the 7th limited mouth, for placingIt is determined when screw
Position.
Further, encapsulating has epoxy resin in the right casing.
Beneficial effects of the present invention: 1, mutual inductor secondary coil is laterally disposed, keeps a copper bar structure simpler, weight
Gently, mutual inductor thickness can control in 18mm.
2, the secondary output of the present invention uses 2PIN socket, secondary lead wires can plug, mutual inductor and lead can separate and pack, fortune
Defeated process is less likely to be damaged, and not with lead when additionally, due to production, mutual inductor production efficiency is higher, and on-site maintenance needs change
Line is more convenient.
3, mutual inductor secondary side is parallel with diode, and when second open circuit, diode current flow limits mutual inductor open-circuit voltage
System is within 10V, to protect the person and equipment safety.
4, transformer casing has guide rail card slot, and installation is extremely convenient, reduces occupied space.
5, wiring board is set inside mutual inductor, secondary output terminals and welding diode in the circuit board, it can be achieved that certainly
Dynamicization operation, save the cost.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, not
Inappropriate limitation of the present invention is constituted, in the accompanying drawings:
Fig. 1 is the three-dimensional structure diagram of the guide tracked closed loop single-phase miniature current transformer of the present invention；
Fig. 2 is the exploded view of Fig. 1；
Fig. 3 is the front appearance figure of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention；
Fig. 4 is the internal structure chart of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention；
Fig. 5 is a copper bar card slot figure of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention；
Fig. 6 is a lead card slot figure of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention；
Fig. 7 is a terminal card slot figure of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention；
Fig. 8 is the secondary coil card slot figure of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention；
Fig. 9 is the screw card slot on a terminal of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention
Figure；
Figure 10 is the wiring board card slot figure of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention；
Figure 11 is the circuit board structure figure of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention；
Figure 12 is the secondary coil lead-out wire and route of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention
Plate connection figure；
Figure 13 is the connection of a lead and copper bar of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention
Figure；
Figure 14 is a terminal connection diagram of the guide tracked closed loop single-phase miniature current transformer of the embodiment of the present invention.
In attached drawing: 1- transformer casing；Lead of 2-；Copper bar of 3-；Terminal of 4-；5-Screw；6- bis-
Secondary coil；7- wiring board；8- diode；9- secondary output terminals；Bis- output leads of 10-；The left outside shell of 11-；12- right casing；
121- guide rail card slot；21- third limited mouth；The first limited mouth of 31-；The second limited mouth of 41-；The 7th limited mouth of 51-；61- the 4th
Limited mouth；The 5th limited mouth of 71-；The 6th limited mouth of 91-.
Specific embodiment
Below in conjunction with attached drawing and specific embodiment, the present invention will be described in detail, herein with schematic implementation of the invention
Example and explanation are used to explain the present invention, but not as a limitation of the invention.
Referring to figs. 1 to Figure 14, a kind of guide tracked closed loop single-phase miniature current transformer according to the present invention,
The transformer casing 1 is involuted by left outside shell 11 and right casing 12, is laterally arranged in the transformer casing 1
Have secondary coil 6, laterally worn in the centre bore of the secondary coil 6 and be connected to a copper bar 3, and one end of a copper bar 3 with wear
It connects on transformer casing 1 lead 2 to be connected, the other end is connected with a terminal 4, and the secondary coil 6 draws
Outlet is connected with the wiring board 7 being installed on transformer casing 1, and diode 8 is connected between the lead-out wire of secondary coil 6
The bottom of secondary output terminals 9, the right casing 12 is provided with guide rail card slot 121, the installation for shell.
In use, mutual inductor primary side is connected by a lead 2 and a terminal 4 with test line, i.e. series connection
Enter test line, mutual inductor secondary side is connected by secondary output terminals 9 and rear end measuring circuit.
In conjunction with Fig. 1 to Figure 14, above embodiment is specifically addressed:
A kind of guide tracked closed loop single-phase miniature current transformer of the present invention, includes transformer casing 1, transformer casing 1；
Lead 2；Copper bar 3；Terminal 4；Screw 5；Secondary coil 6；Wiring board 7；Diode 8；Secondary output end
Son 9；Secondary output lead 10；Left outside shell 11；Right casing 12；Guide rail card slot 121；Third limited mouth 21；First limited mouth 31；The
Two limited mouths 41；7th limited mouth 51；4th limited mouth 61；5th limited mouth 71；6th limited mouth 91 and related spare and accessory parts.
The transformer casing 1 is involuted by left outside shell 11 and right casing 12, and 12 bottom of right casing, which is provided with, leads
Rail clip slot 121, the transformer casing 1 are internally provided with a copper bar card slot, and a copper bar card slot is provided with the first limit
Position mouth 31, positions it when for placing a copper bar 3, and the transformer casing 1 is internally provided with a lead card slot,
Lead card slot is provided with the second limited mouth 41, positions when for placing a lead 2 to it, the mutual inductor
Shell 1 is internally provided with a terminal card slot, and a terminal card slot is provided with third limited mouth 21, for placing primary end
It is positioned when son 4, the transformer casing 1 is internally provided with secondary coil card slot, the secondary coil card slot setting
There is the 4th limited mouth 61, it being positioned when for placing secondary coil 6, the transformer casing 1 is internally provided with route
Board slot, the wiring board card slot being provided with the 5th limited mouth 71, positioning when for placing wiring board 7 to it, described mutual
Sensor shell 1 is internally provided with secondary output terminals card slot, and the secondary output terminals card slot is provided with the 6th limited mouth 91, uses
It is positioned when placing secondary output terminals 9, the transformer casing 1 is internally provided withScrew card slot, it is describedScrew card slot is provided with the 7th limited mouth 51, for placingIt is positioned when screw 5.
Terminal 4 is a frame-type structure, is equipped with one in the frame-type structureScrew, a terminal 4 are set
It is equipped withScrew hole, it is describedScrew 5 is screwed on a terminal 4, and a terminal 4 is placed on transformer casing 1
In terminal card slot, in use, connecting line is inserted into the frame structure of a terminal 4, then tightenScrew 5, institute
The one end for stating a copper bar 3 is inserted into the frame structure of a terminal 4, and the other end is connected with a lead 2, a copper
Item 3 is placed in a copper bar card slot of transformer casing 1.
6 sets of the secondary coil on a copper bar 3, the lead-out wire of the secondary coil 6 has two, is connected to route respectively
On the S1 and S2 of plate 7, diode 8 and secondary output terminals 9 are housed on the wiring board 7, the diode 8 passes through wiring board 7
It is connected in parallel between secondary coil lead-out wire and secondary output terminals 9, i.e., one end of diode is connected with the S1 on wiring board, separately
One end is connected with S2, and in addition one end of diode is connected with one of pin of secondary output terminals, the other end and two
Another pin of secondary output terminal is connected.
The right casing 12 of the transformer casing 1 after the assembly is completed, needs encapsulated epoxy resin for fixing secondary coil 6,
It is fixed after 12 pairing of the left outside shell 11 and right casing with ultrasonic bonding.
It is provided for the embodiments of the invention technical solution above to be described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention are expounded, the explanation of above embodiments is only applicable to help to understand this
The principle of inventive embodiments；At the same time, for those skilled in the art, according to an embodiment of the present invention, in specific embodiment party
There will be changes in formula and application range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of guide tracked closed loop single-phase miniature current transformer, including transformer casing；It is characterized by:
The transformer casing is involuted by left outside shell and right casing；Secondary line is horizontally arranged in the transformer casing
Circle is laterally worn in the centre bore of the secondary coil and is connected to a copper bar, and one end of a copper bar and wearing connects in the mutual inductance
A lead on device shell is connected, and the other end is connected with a terminal.
2. a kind of guide tracked closed loop single-phase miniature current transformer according to claim 1, it is characterised in that:
The secondary coil is equipped with lead-out wire, lead-out wire and the circuit board electrical connection being mounted in the transformer casing.
3. a kind of guide tracked closed loop single-phase miniature current transformer according to claim 1 or 2, it is characterised in that:
The bottom of the right casing is provided with guide rail card slot.
4. a kind of guide tracked closed loop single-phase miniature current transformer according to claim 2, it is characterised in that:
Diode and secondary output terminals are housed, the secondary output terminals are 180 degree 2PIN socket, described on the wiring board
Diode is stamp-mounting-paper diode, and the diode is connected in parallel between the lead-out wire and secondary output terminals by wiring board.
5. a kind of guide tracked closed loop single-phase miniature current transformer according to claim 1, it is characterised in that:
Terminal is a frame-type structure, is equipped with a removable fasteners in the frame-type structure, a copper bar
One end is inserted into the frame-type structure an of terminal.
6. a kind of guide tracked closed loop single-phase miniature current transformer according to claim 5, it is characterised in that:
Terminal upper end is provided with threaded hole, and the screw is screwed on a terminal by the threaded hole, and described one
Secondary terminal is installed in a terminal card slot of the right casing.
7. a kind of guide tracked closed loop single-phase miniature current transformer according to claim 3, it is characterised in that:
Once copper bar card slot is set in the transformer casing, is provided on a copper bar card slot for placing a copper
First limited mouth of item；Once terminal card slot is set in the shell, is provided on a terminal card slot for placing
Second limited mouth of terminal.
8. a kind of guide tracked closed loop single-phase miniature current transformer according to claim 7, it is characterised in that:
Once down-lead card slot is set in the transformer casing, is provided on a lead card slot and once draws for placing
The third limited mouth of line；It is provided with secondary coil card slot in the transformer casing, is arranged on the secondary coil card slot useful
In the 4th limited mouth for placing secondary coil.
9. a kind of guide tracked closed loop single-phase miniature current transformer according to claim 8, it is characterised in that:
It is provided with wiring board card slot in the transformer casing, for placing wiring board is provided on the wiring board card slot
Five limited mouths.
10. a kind of guide tracked closed loop single-phase miniature current transformer according to claim 3, it is characterised in that:
Encapsulating has epoxy resin in the right casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910294857.1A CN110010330A (en) | 2019-04-12 | 2019-04-12 | A kind of guide tracked closed loop single-phase miniature current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910294857.1A CN110010330A (en) | 2019-04-12 | 2019-04-12 | A kind of guide tracked closed loop single-phase miniature current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110010330A true CN110010330A (en) | 2019-07-12 |
Family
ID=67171488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910294857.1A Withdrawn CN110010330A (en) | 2019-04-12 | 2019-04-12 | A kind of guide tracked closed loop single-phase miniature current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110010330A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035535A (en) * | 2021-02-22 | 2021-06-25 | 江阴市星火电子科技有限公司 | Mutual inductor based on 5G |
-
2019
- 2019-04-12 CN CN201910294857.1A patent/CN110010330A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035535A (en) * | 2021-02-22 | 2021-06-25 | 江阴市星火电子科技有限公司 | Mutual inductor based on 5G |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190712 |
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| WW01 | Invention patent application withdrawn after publication |