CN110676039A - Mutual inductor comprising current detection and signal detection - Google Patents
Mutual inductor comprising current detection and signal detection Download PDFInfo
- Publication number
- CN110676039A CN110676039A CN201911072657.8A CN201911072657A CN110676039A CN 110676039 A CN110676039 A CN 110676039A CN 201911072657 A CN201911072657 A CN 201911072657A CN 110676039 A CN110676039 A CN 110676039A
- Authority
- CN
- China
- Prior art keywords
- current
- signal detection
- output pin
- mutual inductor
- current input
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- H01F27/02—Casings
-
- 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
- H01F27/402—Association of measuring or protective means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a mutual inductor comprising current detection and signal detection, which comprises a mutual inductor housing, a magnetic core, a coil wound on the magnetic core, a current input lead wound on the coil and a current output pin electrically connected with the coil, wherein a bayonet is arranged on the inner side of the front part of the mutual inductor housing, a current input terminal is clamped in the bayonet, two ends of the current input lead are respectively welded on the two current input terminals in a spot welding manner, two fixed blocks are arranged on a housing cover on the inner side of the mutual inductor housing, and a current output pin fixture block and a signal detection output pin fixture block are respectively clamped in the two fixed blocks through clamping grooves formed in the upper surface of the two fixed blocks. According to the mutual inductor comprising the current detection and the signal detection, the current input terminal is made of the copper sheet, so that hard connection is realized, and spot welding is facilitated; the pins are clamped by the clamping blocks, so that wiring and assembly are facilitated; and signal detection is arranged, so that whether the current loop is abnormal or not is conveniently detected.
Description
Technical Field
The invention relates to the field of current transformers, in particular to a current transformer comprising current detection and signal detection.
Background
The current transformer is based on the principle of electromagnetic induction and consists of a closed magnetic core and a winding. The primary winding of the current transformer has few turns and is connected in series in a circuit of current to be measured, so that all current of the circuit always flows through the current transformer, the secondary winding has more turns and is connected in series in a measuring instrument and a protection circuit, and the secondary circuit of the current transformer is always closed when the current transformer works, so that the impedance of a series coil of the measuring instrument and the protection circuit is very small, and the working state of the current transformer is close to short circuit. The current input of the existing current transformer is directly connected to a circuit to be tested through screws by adopting a lead, and flexible connection is realized, so that intelligent production is inconvenient to realize; the pins and the housing are integrally arranged, so that wiring and assembly are inconvenient; without signal error detection, the accuracy of the connection loop cannot be well judged.
Disclosure of Invention
The invention aims to provide a mutual inductor comprising current detection and signal detection, wherein a current input terminal adopts a copper sheet, hard connection is realized, and spot welding is convenient; the pins are clamped by the clamping blocks, so that wiring and assembly are facilitated; and signal detection is arranged, so that whether the current loop is abnormal or not is conveniently detected.
In order to achieve the purpose, the invention provides the technical scheme that: comprises a mutual inductor encloser, a magnetic core, a coil wound on the magnetic core, a current input lead wound on the coil and a current output pin electrically connected with the coil, a bayonet is arranged on the inner side of the front part of the mutual inductor housing, a current input terminal is connected in the bayonet in a clamping way, two ends of the current input lead are respectively spot-welded on the two current input terminals, two fixing blocks are arranged on the shell cover at the inner side of the mutual inductor housing, a current output pin fixture block and a signal detection output pin fixture block are respectively clamped in the two fixing blocks through clamping grooves arranged on the upper surfaces of the two fixing blocks, the current output pin fixture block is inserted with a current output pin through an insertion hole, the signal detection output pin fixture block is inserted with a signal detection output pin through an insertion hole, the coil winding is provided with a signal detection winding, and two ends of the signal detection winding are respectively connected to the two signal detection output pins.
The current input terminal is a copper sheet.
And a reinforcing block is arranged in the mutual inductor housing.
The invention has the beneficial effects that: a mutual inductor comprising current detection and signal detection is characterized in that a current input terminal adopts a copper sheet, hard connection is realized, and spot welding is facilitated; the pins are clamped by the clamping blocks, so that wiring and assembly are facilitated; and signal detection is arranged, so that whether the current loop is abnormal or not is conveniently detected.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a schematic view of the structure of the fixing block of the present invention.
Detailed Description
Example 1
As shown in fig. 1-3, the mutual inductor including current detection and signal detection includes a mutual inductor housing 1, a magnetic core, a coil 2 wound on the magnetic core, a current input lead 3 wound on the coil 2, and a current output pin 4 electrically connected to the coil 2, and is characterized in that: the inner side of the front part of the mutual inductor housing 1 is provided with a bayonet 5, a current input terminal 6 is connected in the bayonet 5 in a clamping manner, two ends of a current input lead 3 are respectively welded on the two current input terminals 6 in a spot manner, a housing cover on the inner side of the mutual inductor housing 1 is provided with two fixed blocks 7, a current output pin fixture block 8 and a signal detection output pin fixture block 9 are respectively connected in the two fixed blocks 7 in a clamping manner through clamping grooves formed on the fixed blocks, the current output pin fixture block 8 is inserted with a current output pin 4 through an insertion hole formed in the inserted manner, the signal detection output pin fixture block 9 is inserted with a signal detection output pin 10 through an insertion hole formed in the inserted manner, a signal detection winding 11 is wound on the coil 2, and two ends of the signal detection winding 11 are respectively connected on the.
The current input terminal 6 is a copper sheet.
And a reinforcing block 12 is arranged in the transformer housing 1.
When the detection device works specifically, two ends of a current input lead 3 are respectively spot-welded on two current input terminals 6, the current input terminals 6 are spot-welded on a wiring copper column, the wiring copper column is electrically connected with a circuit to be detected, a current signal is input through the lead 3, and then the current signal is input into a detection instrument through a current output pin 4 and a PCB board connected through a magnetic core in a coil 2 and the electromagnetic induction principle of the coil 2 to detect current; through the signal detection wire winding 11 of circle winding on coil 2 and the electromagnetic induction principle of coil 2, will detect through signal detection output pin 10 and go into the signal detection winding, carry out current loop and detect, improve the accuracy that whole mutual-inductor current detected, draw-in groove and spliced eye do not mark in the mutual-inductor.
According to the mutual inductor comprising the current detection and the signal detection, the current input terminal is made of the copper sheet, so that hard connection is realized, and spot welding is facilitated; the pins are clamped by the clamping blocks, so that wiring and assembly are facilitated; and signal detection is arranged, so that whether the current loop is abnormal or not is conveniently detected.
Claims (3)
1. The utility model provides a mutual-inductor including current detection and signal detection, includes mutual-inductor housing (1), magnetic core, winding circle coil (2) on the magnetic core, winding circle current input wire (3) on coil (2) and current output pin (4) be connected with coil (2) electricity, its characterized in that: a bayonet (5) is arranged on the inner side of the front part of the mutual inductor housing (1), a current input terminal (6) is connected in the bayonet (5) in a clamping way, two ends of the current input lead (3) are respectively welded on the two current input terminals (6), two fixing blocks (7) are arranged on a shell cover on the inner side of the mutual inductor housing (1), a current output pin clamping block (8) and a signal detection output pin clamping block (9) are respectively clamped in the two fixing blocks (7) through clamping grooves arranged on the upper surfaces of the fixing blocks, the current output pin fixture block (8) is inserted with a current output pin (4) through an insertion hole, the signal detection output pin fixture block (9) is inserted with a signal detection output pin (10) through an insertion hole, the coil (2) is provided with a signal detection winding (11) in a winding way, and two ends of the signal detection winding (11) are respectively connected to the two signal detection output pins (10).
2. The transformer comprising current detection and signal detection according to claim 1, wherein: the current input terminal (6) is a copper sheet.
3. The transformer comprising current detection and signal detection according to claim 1, wherein: and a reinforcing block (12) is arranged in the transformer housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072657.8A CN110676039A (en) | 2019-11-05 | 2019-11-05 | Mutual inductor comprising current detection and signal detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072657.8A CN110676039A (en) | 2019-11-05 | 2019-11-05 | Mutual inductor comprising current detection and signal detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110676039A true CN110676039A (en) | 2020-01-10 |
Family
ID=69086036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911072657.8A Pending CN110676039A (en) | 2019-11-05 | 2019-11-05 | Mutual inductor comprising current detection and signal detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110676039A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200189A (en) * | 2021-12-10 | 2022-03-18 | 宁波泰丰源电气有限公司 | High-protection ammeter current transformer |
| CN116246869A (en) * | 2023-03-14 | 2023-06-09 | 上海纳宇电气有限公司 | Novel structure of current transformer with one-time multi-turn lead and production process thereof |
-
2019
- 2019-11-05 CN CN201911072657.8A patent/CN110676039A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200189A (en) * | 2021-12-10 | 2022-03-18 | 宁波泰丰源电气有限公司 | High-protection ammeter current transformer |
| CN116246869A (en) * | 2023-03-14 | 2023-06-09 | 上海纳宇电气有限公司 | Novel structure of current transformer with one-time multi-turn lead and production process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203672938U (en) | AC-DC universal leakage-current sensor | |
| CN110676039A (en) | Mutual inductor comprising current detection and signal detection | |
| CN102308348A (en) | Current transformer and current detection circuit and detection method | |
| CN210722726U (en) | Mutual inductor comprising current detection and signal detection | |
| CN202929092U (en) | High-precision Rogowski coil current transformer | |
| CN210722708U (en) | Integrated current transformer | |
| CN204989291U (en) | Tunnel magneto resistor current sensor | |
| CN2816822Y (en) | Metal housing surface-current detecting device | |
| CN109799380A (en) | A kind of integrated electric flow sensor and its packaging method | |
| CN203216971U (en) | Open-close type PCB hollow coil current sensor | |
| CN205484516U (en) | Able to programme pair of supply current sensor | |
| CN210722727U (en) | Current output pin structure of current transformer | |
| CN101266878A (en) | Current mutual inductor with shunt resistor | |
| CN201203665Y (en) | Magnetic measurement square loop | |
| CN210722707U (en) | Current input terminal structure of current transformer | |
| CN212568917U (en) | Electronic current sensor for electric energy meter | |
| CN216054256U (en) | Current transformer with constant value resistor | |
| CN203406126U (en) | Hollow coil provided with closed magnetic circuit | |
| CN106707015A (en) | High-performance self-calibrated photoelectric combined type current transformer and self-calibration method thereof | |
| CN210722709U (en) | Buckle formula current output pin of mutual-inductor | |
| CN221079813U (en) | Miniature combined mutual inductor | |
| CN220188611U (en) | Hall type current transformer | |
| CN211088055U (en) | Mutual inductance mechanism and protection device | |
| CN221040789U (en) | High-precision small-volume current transformer | |
| CN217034087U (en) | Current detection module of integrated magnetic core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |