CN202332508U - Iron core for high-precision current mutual inductor - Google Patents
Iron core for high-precision current mutual inductor Download PDFInfo
- Publication number
- CN202332508U CN202332508U CN2011204934981U CN201120493498U CN202332508U CN 202332508 U CN202332508 U CN 202332508U CN 2011204934981 U CN2011204934981 U CN 2011204934981U CN 201120493498 U CN201120493498 U CN 201120493498U CN 202332508 U CN202332508 U CN 202332508U
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- iron core
- precision current
- mutual inductor
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Abstract
The utility model discloses an iron core for a high-precision current mutual inductor. The iron core comprises a plastic shell (2), an iron core (1), a varnished wire (3) and a lead wire (4). The iron core (1) is made of an ultrafine crystal or non-crystal belt material; an insulating layer is arranged on the surface of the iron core (1); the plastic shell (2) is arranged at the both ends of the iron core (1); a coil is formed by uniformly winding the varnished wire (3) according to a requested current ratio; the lead wire (4) is externally connected with the iron core (1) through the varnished wire (3); and a binder is filled between an assembling gap of the iron core (1) and the plastic shell (2) so as to cure and connect entirely. The iron core of the high-precision current mutual inductor disclosed by the utility model has the advantages of simple structure, convenience for manufacturing, high material use ratio, high manufacturing efficiency and good uniformity, and is applicable to quantity production by using universal equipment. The material consumption and the machining cost can be more effectively reduced.
Description
Technical field
The invention belongs to technical field of electrical equipment, specifically is a kind of high precision current transformer iron core.
Background technology
In recent years, industry with equipment or household electrical appliances article, automotive component etc. in, the necessity of energy-conservationization obtains very big attention.Now, the nearly all electric energy that is produced at home the power plant of firepower, waterpower, nuclear energy, wind-force etc. all is to use the electric rotating machine as the electromagnetic application product to produce.In addition, over half in the electricity usage amount of using at home consumed by the driving of electric rotating machine.And then the static device of transformer that when carrying these electric power, uses or reactor etc. also is the electromagnetic application product.These electromagnetic application products reduce the loss of this iron core portion, thereby can realize high efficiency through using soft magnetic material in iron core portion.Magnetive cord is the pass key control performer in the systems such as instrument transformer, circuit breaker, transformer; Its effect is that saturated magnetic field magnetic in instrument transformer, circuit breaker, the transformer and downfield magnetic index are accurately controlled; Its requirement is: volume is little, electromagnetic attraction is big, and response speed is fast.
Prior art is used for indoor low-voltage AC and as the electric current electric energy measurement current transformer is enclosed within electric line, and circuit is sampled.But there is defective in present current transformer: its iron core generally all adopts silicon steel sheet to make, and dish lamination end face is smooth inadequately, and lamination is that the sheet number is bigger, has increased the long-pending copper material with secondary winding of core section accordingly, has increased cost.
The utility model content
In order to overcome the defective of above-mentioned prior art, the utility model provides a kind of high precision current transformer iron core simple in structure, easy for installation.
The technical scheme of the utility model is such: a kind of high precision current transformer iron core; It comprises plastic casing, iron core, enamelled wire and lead; Described iron core adopts ultracrystallite or amorphous band manufacturing to form, and on the iron core surface insulating barrier is arranged, and at the iron core two ends plastic casing is arranged; Enamelled wire constitutes coil equably by the requirement of current ratio on iron core; Described lead is external in iron core through enamelled wire, and it is an integral body that the equal filling adhesive in described iron core and plastic casing fit-up gap solidifies binding.
The utlity model has following beneficial effect in sum: the iron core material of this utility model adopts ultracrystallite or amorphous band manufacturing to form; The current transformer of 75/5A is at a single turn; Load is under the situation of SVA, and precision can be stable is controlled at the 0.2S level, and the current transformer of 5/5A is at a multiturn; Load is under the situation of 5VA, and precision can be stable is controlled at the 0.2S level.In addition, it also have simple in structure, easy to process, stock utilization is high, working (machining) efficiency is high, high conformity, be suitable for adopting common apparatus to generate in batches, more effective reduction material consumption and processing cost.
Description of drawings
Fig. 1 is the utility model high precision current transformer iron core perspective view;
Wherein, 1-iron core, 2-plastic casing, 3-enamelled wire, 4-lead.
Embodiment
As shown in Figure 1, a kind of high precision current transformer iron core, it comprises plastic casing 2, iron core 1, enamelled wire 3 and lead 4; Described iron core 1 adopts ultracrystallite or amorphous band manufacturing to form, and on iron core 1 surface insulating barrier is arranged, and at iron core 1 two ends plastic casing 2 is arranged; Enamelled wire 3 constitutes coil equably by the requirement of current ratio on iron core 1; Described lead 4 is external in iron core 1 through enamelled wire 3, and it is an integral body that described iron core 1 solidifies binding with the equal filling adhesive in plastic casing 2 fit-up gaps.
What should explain at last is: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has carried out detailed explanation to the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of the spirit and the scope of the utility model, all should be encompassed in the claim scope of the utility model.
Claims (3)
1. high precision current transformer iron core; It comprises plastic casing (2), iron core (1), enamelled wire (3) and lead (4); It is characterized in that being: described iron core (1) adopts ultracrystallite or amorphous band manufacturing to form, and on iron core (1) surface insulating barrier is arranged, and at iron core (1) two ends plastic casing (2) is arranged; Enamelled wire (3) is gone up around iron core (1) equably by the requirement of current ratio and is constituted coil
2. according to the said a kind of high precision current transformer iron core of claim 1, it is characterized in that being: described lead (4) is external in iron core (1) through enamelled wire (3).
3. according to the said a kind of high precision current transformer iron core of claim 1, it is characterized in that being: it is an integral body that the equal filling adhesive in described iron core (1) and plastic casing (2) fit-up gap solidifies binding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204934981U CN202332508U (en) | 2011-12-01 | 2011-12-01 | Iron core for high-precision current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204934981U CN202332508U (en) | 2011-12-01 | 2011-12-01 | Iron core for high-precision current mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202332508U true CN202332508U (en) | 2012-07-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204934981U Expired - Fee Related CN202332508U (en) | 2011-12-01 | 2011-12-01 | Iron core for high-precision current mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202332508U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630724A (en) * | 2013-06-26 | 2014-03-12 | 浙江天际互感器有限公司 | Self-calibration harmonic current transformer based on gapped iron core coil |
-
2011
- 2011-12-01 CN CN2011204934981U patent/CN202332508U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630724A (en) * | 2013-06-26 | 2014-03-12 | 浙江天际互感器有限公司 | Self-calibration harmonic current transformer based on gapped iron core coil |
| CN103630724B (en) * | 2013-06-26 | 2015-10-21 | 浙江天际互感器有限公司 | Based on the self calibration harmonic current mutual inductor of band gap iron-core coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141201 |
|
| EXPY | Termination of patent right or utility model |