CN202332505U - Iron core with internal and external direct-current-resistant structures for mutual inductor - Google Patents

Abstract

The utility model provides an iron core with internal and external direct-current-resistant structures for a mutual inductor. The iron core comprises an upper protection shell and a lower protection shell, which are matched in pair and can form a sealed space by combining together. A non-crystal iron core and an ultrafine crystal iron core, which are sleeved together internally and externally, are correspondingly mounted in the lower protection shell, wherein the non-crystal iron core is arranged outside, and the ultrafine crystal iron core is arranged inside. With the adoption of the scheme provided by the utility model, the iron core has the advantages of simple structure and convenience for manufacturing due to using a manner of combining the non-crystal iron core and the ultrafine crystal iron core internally and externally. Not only can the mounting size be satisfied, but also the requirement on a precision level can be met. Furthermore, the non-crystal iron core and the ultrafine crystal iron core provided by the utility model can be manufactured to be the iron cores with a requested size according to a volume ratio in the different requirements of an actual condition, so as to be convenient and rapid.

Description

A kind of transformer iron core with the about structure of anti-direct current

Technical field

The utility model relates to the technical field of electric elements, refers in particular to a kind of transformer iron core with the about structure of anti-direct current.

Background technology

Convention in the industry; Amorphous iron core can play the effect of anti-direct current; And the existing high magnetic permeability of ultracrystallite iron core; Can satisfy simultaneously the accuracy class requirement of D.C mutual-inductor again, can guarantee the error precision of some electric equipment and anti-electricity-theft effect, can satisfy the test request of DC component and the even-order harmonic amount of influence in the alternating current circuit simultaneously so integrate use to both.If but just separately adopt wherein a kind of iron core to make instrument transformer then be not reach above effect, have precision and can not say because adopt amorphous iron core to make instrument transformer, and adopt ultracrystallite fabrication of iron core instrument transformer cannot resist direct current.Both integrate the anti-direct current instrument transformer of utilization though occurred some on the market at present, and also there are shortcomings such as complex structure, heaviness, anti-direct current effect instability, durable in it, can not satisfy most of users' actual demand.

Summary of the invention

The purpose of the utility model is to overcome the deficiency of prior art, provides a kind of simple in structure, easy to make, can satisfy installation dimension, can reach the transformer iron core of the about structure of the anti-direct current of having of accuracy class again.

For realizing above-mentioned purpose; The technical scheme that the utility model provided is: a kind of transformer iron core with the about structure of anti-direct current; It includes paired with each other and can be combined together to form the upper and lower protection housing of a confined space, corresponding in the described housing of protection down amorphous iron core and the ultracrystallite iron core that the inside and outside is nested together is installed, wherein; Described amorphous iron core places the outside, and the ultracrystallite iron core places the inside.

Amorphous iron core that described inside and outside is nested together and ultracrystallite iron core are complementary with protecting the cavity shape of housing down.

Described upper and lower protection housing is a toroidal shell.

The utility model is after having adopted such scheme; Owing to adopt the about mode that combines of amorphous iron core and ultracrystallite iron core; Make it simple in structure, easy to make, when satisfying installation dimension, can reach the accuracy class requirement again; And amorphous iron core of the utility model and ultracrystallite iron core can according to the demands of different of actual conditions by volume the ratio iron core that is made into required size heat-treat, convenient and swift.

Description of drawings

Fig. 1 is the explosive view of the utility model master apparent direction.

Fig. 2 is the explosive view of the utility model axle apparent direction.

Fig. 3 is the explosive view of the utility model stravismus direction.

Fig. 4 is the overall structure sketch map of the utility model.

Embodiment

Below in conjunction with specific embodiment the utility model is described further.

Shown in accompanying drawing 1 to accompanying drawing 4; The transformer iron core that present embodiment is described to have the about structure of anti-direct current, it includes paired with each other and can be combined together to form the upper and lower protection housing 1,2 of an annular sealed space, correspondence is equipped with that the inside and outside is nested together in this time protection housing 2 simultaneously amorphous iron core 3 and ultracrystallite iron core 4; Wherein, Described amorphous iron core 3 will place the outside, and ultracrystallite iron core 4 will place the inside, and the purpose of design is in order to reduce the precision influence of magnetic circuit to this transformer iron core like this; Reduce the error of transformer iron core, make it reach the high accuracy class requirement.In addition, the amorphous iron core 3 that the described inside and outside of present embodiment is nested together is complementary with protecting the cavity shape of housing 2 down with ultracrystallite iron core 4, when satisfying instructions for use, makes full use of the space, the convenient installation.The manufacturing approach of the utility model be at first according to actual conditions to the parameter request of product with amorphous iron core 3 and ultracrystallite iron core 4 by volume the ratio iron core that is made into required size heat-treat; Be placed in the corresponding following protection housing 2 after ultracrystallite iron core 4 installation requirement inside and outside inside is nested together outside by amorphous iron core 3 with ultracrystallite iron core 4 with the amorphous iron core after the above-mentioned heat treatment 3 then; Protect combining of housing 2 through last protection housing 1 with this time at last, be made into the anti-direct current instrument transformer iron core that satisfies instructions for use.Because the utility model is to adopt amorphous iron core 3 and the ultracrystallite iron core 4 about modes that combine, and then makes it simple in structure, easy to make, when satisfying installation dimension, can reach the accuracy class requirement again.In a word, overall structure of the utility model and performance design get rationally reliable, and its cost performance is high, is worthy to be popularized.

The examples of implementation of the above are the preferred embodiment of the utility model only, are not the practical range that limits the utility model with this, so the variation that all shapes according to the utility model, principle are done all should be encompassed in the protection range of the utility model.

Claims (3)

1. transformer iron core with the about structure of anti-direct current; It includes paired with each other and can be combined together to form the upper and lower protection housing (1,2) of a confined space; It is characterized in that: correspondence is equipped with amorphous iron core (3) and the ultracrystallite iron core (4) that the inside and outside is nested together in described protection housing (2) down; Wherein, described amorphous iron core (3) places the outside, and ultracrystallite iron core (4) places the inside.

2. a kind of transformer iron core with the about structure of anti-direct current according to claim 1 is characterized in that: amorphous iron core that described inside and outside is nested together (3) and ultracrystallite iron core (4) are complementary with protecting the cavity shape of housing (2) down.

3. a kind of transformer iron core with the about structure of anti-direct current according to claim 1, it is characterized in that: described upper and lower protection housing (1,2) is a toroidal shell.

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