CN210722726U - Mutual inductor comprising current detection and signal detection - Google Patents
Mutual inductor comprising current detection and signal detection Download PDFInfo
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- CN210722726U CN210722726U CN201921892894.4U CN201921892894U CN210722726U CN 210722726 U CN210722726 U CN 210722726U CN 201921892894 U CN201921892894 U CN 201921892894U CN 210722726 U CN210722726 U CN 210722726U
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Abstract
The utility model discloses a mutual-inductor including current detection and signal detection, including mutual-inductor housing, magnetic core, the coil of circle on the magnetic core, the current input wire of circle on the coil and the current output pin of being connected with the coil electricity, the bayonet socket has been seted up to mutual-inductor housing front portion inboard, the joint has current input terminal in the bayonet socket, the both ends of current input wire spot welding respectively is two on the current input terminal, two fixed blocks have been seted up on the inboard cap of mutual-inductor housing, two there are current output pin fixture block and signal detection output pin fixture block through seting up in the fixed block above that the face draw-in groove joint is respectively the joint. The current input terminal of the mutual inductor comprises a 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 utility model relates to a current transformer field especially relates to a mutual-inductor including 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 utility model aims to provide a mutual inductor comprising current detection and signal detection, wherein a current input terminal adopts a copper sheet to realize hard connection, thereby facilitating spot welding; 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 above purpose, the utility model provides a technical scheme is: 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 utility model has the advantages 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 whole of the present invention;
fig. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a schematic structural diagram 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 |
|---|---|---|---|
| CN201921892894.4U CN210722726U (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 |
|---|---|---|---|
| CN201921892894.4U CN210722726U (en) | 2019-11-05 | 2019-11-05 | Mutual inductor comprising current detection and signal detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210722726U true CN210722726U (en) | 2020-06-09 |
Family
ID=70932347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921892894.4U Active CN210722726U (en) | 2019-11-05 | 2019-11-05 | Mutual inductor comprising current detection and signal detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210722726U (en) |
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2019
- 2019-11-05 CN CN201921892894.4U patent/CN210722726U/en active Active
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