CN202332563U - Current mutual inductor - Google Patents
Current mutual inductor Download PDFInfo
- Publication number
- CN202332563U CN202332563U CN201120488006XU CN201120488006U CN202332563U CN 202332563 U CN202332563 U CN 202332563U CN 201120488006X U CN201120488006X U CN 201120488006XU CN 201120488006 U CN201120488006 U CN 201120488006U CN 202332563 U CN202332563 U CN 202332563U
- Authority
- CN
- China
- Prior art keywords
- control circuit
- circuit board
- group
- groups
- external control
- 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.)
- Expired - Fee Related
Links
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- Emergency Protection Circuit Devices (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a current mutual inductor comprising an outer shell. A three-phase protective mechanism composed of three groups of magnet windings is arranged in the outer shell; every group of the magnet winding comprises a ring-shaped iron core and coils arranged on the ring-shaped iron core in a surrounding way. One end of the coil of each group of the magnet winding is connected with a control circuit board. A connector communicated with an external control circuit is arranged on the control circuit board. According to the structure, by connecting the three-phase protective mechanism composed of the three group of magnet windings and a protective circuit and connecting the control circuit board with the external control circuit or an on/off switch by the connector, overcurrent protection of the protective circuit is realized. The inductor is simple in structure and low in production cost.
Description
Technical field
The utility model relates to a kind of current transformer.
Background technology
At present, existing current transformer is dry-type current transformer and oil-immersed current transformer mostly, and its structure is complicated, production cost is higher.
Summary of the invention
To the deficiency of prior art, the utility model provides a kind of simple in structure, current transformer that production cost is lower.
For realizing above-mentioned purpose; The utility model provides a kind of current transformer; Comprise shell body, be provided with the three-phase protective mechanism that is made up of three groups of electromagnetism windings in the described shell body, said every group of electromagnetism winding constitutes by annular core and the coil of winding on annular core; And an end of said three groups of electromagnetism winding center line circles all is connected on the control circuit board, and described control circuit board is provided with the splicing ear that is communicated with external control circuit.
The utility model can further be set to said control circuit board, and to be provided with the splicing ear that is communicated with external control circuit be USB interface, and the interface end of said USB interface is located on the shell body.
The beneficial effect of the utility model is: adopt said structure; With the said three-phase protective mechanism that constitutes by three groups of electromagnetism windings with connected by protective circuit; Again through USB interface with control circuit board and external control circuit or open, break off and close to connect; Just can realize that to by the overcurrent protection of protective circuit, it is simple in structure, production cost is lower.
Description of drawings
Fig. 1 is the explosive view of the utility model.
Embodiment
As shown in Figure 1ly provided a kind of current transformer; Comprise shell body 1; Be provided with the three-phase protective mechanism that constitutes by three groups of electromagnetism windings 2 in the described shell body 1; Said every group of electromagnetism winding 2 constitutes by annular core 21 and the coil 22 of winding on annular core 21, and an end of coil 22 all is connected on the control circuit board 3 in said three groups of electromagnetism windings 2, and described control circuit board 3 is provided with the splicing ear that is communicated with external control circuit; It is USB interface 31 that said control circuit board 3 is provided with the splicing ear that is communicated with external control circuit, and the interface end 311 of said USB interface 31 is located on the shell body 1.
Adopt said structure; With the said three-phase protective mechanism that constitutes by three groups of electromagnetism windings 2 with connected by protective circuit; Again through USB interface 31 with control circuit board 3 with external control circuit or open, break off to close and connect; Just can realize that to by the overcurrent protection of protective circuit, it is simple in structure, production cost is lower.
Claims (2)
1. current transformer; It is characterized in that: comprise shell body; Be provided with the three-phase protective mechanism that constitutes by three groups of electromagnetism windings in the described shell body; Said every group of electromagnetism winding constitutes by annular core and the winding coil on annular core, and an end of said three groups of electromagnetism winding center line circles all is connected on the control circuit board, and described control circuit board is provided with the splicing ear that is communicated with external control circuit.
2. current transformer according to claim 1 is characterized in that: it is USB interface that said control circuit board is provided with the splicing ear that is communicated with external control circuit, and the interface end of said USB interface is located on the shell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120488006XU CN202332563U (en) | 2011-11-30 | 2011-11-30 | Current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120488006XU CN202332563U (en) | 2011-11-30 | 2011-11-30 | Current mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202332563U true CN202332563U (en) | 2012-07-11 |
Family
ID=46444535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120488006XU Expired - Fee Related CN202332563U (en) | 2011-11-30 | 2011-11-30 | Current mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202332563U (en) |
-
2011
- 2011-11-30 CN CN201120488006XU patent/CN202332563U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131130 |