CN204614623U - A kind of electrical transformer cores structure of low no-load loss - Google Patents
A kind of electrical transformer cores structure of low no-load loss Download PDFInfo
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- CN204614623U CN204614623U CN201520385050.6U CN201520385050U CN204614623U CN 204614623 U CN204614623 U CN 204614623U CN 201520385050 U CN201520385050 U CN 201520385050U CN 204614623 U CN204614623 U CN 204614623U
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Abstract
The utility model relates to a kind of electrical transformer cores structure of low no-load loss.Described core structure, comprise iron yoke assembly and iron core column assembly, described iron yoke assembly comprises the two iron yokes be laterally arranged in parallel, described iron core column assembly is between described two iron yokes, described iron core column assembly comprises three iron core column of parallel longitudinal layout, and described iron core column and iron yoke form by silicon steel sheet is stacked.Be inserted with spacer between the silicon steel sheet of described composition iron yoke, described spacer is rectangle laminated structure, and the length of described spacer is equal with the longest edge of silicon steel sheet, and described spacer can cover the seam of iron yoke and iron core column.The utility model is by changing the structure of iron yoke, spacer is inserted between the silicon steel sheet of composition iron yoke, iron yoke is made to be separated into several independent part, thus make to be tending towards even by iron yoke cross section each several part magnetic flux distribution, improve the service efficiency of iron yoke each several part, and then reduce the no-load loss of core structure.<b/>
Description
Technical field
the utility model belongs to field of electrical equipment, is specifically related to a kind of electrical transformer cores structure.
Background technology
the no-load loss mainly core loss of transformer, it is made up of magnetic hysteresis loss and eddy current loss.Magnetic hysteresis loss is directly proportional to permeability magnetic material, and is directly proportional to the quadratic power of magnetic flux density; And the thickness of the quadratic power of eddy current loss and magnetic flux density, the quadratic power of permeability magnetic material thickness, the quadratic power of frequency and permeability magnetic material is directly proportional, reduce no-load loss and will reduce magnetic flux density, its result causes the weight of permeability magnetic material to increase.Or adopt high magnetic conduction, low-loss permeability magnetic material, or adopt the permeability magnetic material that thickness is thinner.Its result all causes the increase of transformer cost, and excessively thin silicon steel sheet makes the reduction of the flatness of iron core cause the mechanical strength of iron core to reduce.
as depicted in figs. 1 and 2, the core structure that conventional medium-small type distribution transformers is traditional comprises iron yoke assembly and iron core column assembly, described iron yoke assembly comprises the two iron yokes 10 be laterally arranged in parallel, described iron core column assembly is between described two iron yokes 10, described iron core column assembly comprises three iron core column 20 of parallel longitudinal layout, described iron yoke assembly and iron core column assembly form " day " font fallen, the cross section of described iron yoke 10 and the cross section at B-B place rounded, described iron yoke 10 forms by silicon steel sheet is stacked.The magnetic flux distribution in the iron yoke 10 of this routine and the cross section of iron core column 20 is the magnetic flux density subaverage of core, marginal portion is higher than mean value, the magnetic flux distribution in cross section is uneven, the core of iron yoke 10 and iron core column 20 can not be used effectively, and then make the no-load loss of traditional core structure larger, waste a large amount of electric energy, be unfavorable for economic development.
Utility model content
for the defect of prior art, the technical problems to be solved in the utility model is to provide the electrical transformer cores structure of the low no-load loss that a kind of structure is simple, no-load loss is few.
in order to solve the problems of the technologies described above, a kind of technical scheme that the utility model adopts is: a kind of electrical transformer cores structure of low no-load loss, comprise iron yoke assembly and iron core column assembly, described iron yoke assembly comprises the two iron yokes be laterally arranged in parallel, described iron core column assembly is between described two iron yokes, described iron core column assembly comprises three iron core column of parallel longitudinal layout, described iron yoke assembly and iron core column assembly form " day " font fallen, and described iron core column and iron yoke form by silicon steel sheet is stacked.Be inserted with spacer between the silicon steel sheet of described composition iron yoke, described spacer is rectangle laminated structure, and the length of described spacer is equal with the longest edge of silicon steel sheet, and described spacer can cover the seam of iron yoke and iron core column.
concrete, described spacer is grain-oriented Si steel sheet.
preferably, described spacer has multi-disc, and described spacer is inserted between the silicon steel sheet of composition iron yoke equally spacedly.
scope of the present utility model, is not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, also should contain other technical scheme of being carried out combination in any by above-mentioned technical characteristic or its equivalent feature and being formed simultaneously.The technical characteristic that such as, disclosed in above-mentioned feature and the application (but being not limited to) has similar functions is replaced mutually and the technical scheme etc. formed.
because technique scheme is used, the utility model compared with prior art has following advantages: the utility model is by changing the structure of iron yoke, spacer is inserted between the silicon steel sheet of composition iron yoke, iron yoke is made to be separated into several independent part, thus make to be tending towards even by iron yoke cross section each several part magnetic flux distribution, improve the service efficiency of iron yoke each several part, and then reduce the no-load loss of core structure.And the utility model is the improvement carried out on traditional core structure, because iron yoke outside does not have coil, insert the simple to operate of spacer, be easy to transformation.Spacer of the present utility model also covers seam between iron yoke and core limb, the magnetic flux distribution of iron core column part can be made also to be tending towards even, reduce further the no-load loss of core structure.
Accompanying drawing explanation
accompanying drawing 1 is the structural representation of core structure in prior art.
accompanying drawing 2 is the generalized section at B-B place in accompanying drawing 1.
accompanying drawing 3 is the structural representation of the electrical transformer cores structure of the utility model low no-load loss.
accompanying drawing 4 is the generalized section of A-A in accompanying drawing 3.
accompanying drawing 5 is iron yoke part-structure schematic diagram of the present utility model.
wherein: 1, iron yoke; 2, iron core column; 3, spacer; 4, silicon steel sheet; 10, iron yoke; 20, iron core column; 40, silicon steel sheet.
Embodiment
as shown in Fig. 3, Fig. 4 and Fig. 5, the electrical transformer cores structure of a kind of low no-load loss described in the utility model, comprise iron yoke assembly and iron core column assembly, described iron yoke assembly comprises the two iron yokes 1 be laterally arranged in parallel, described iron core column assembly is between described two iron yokes 1, described iron core column assembly comprises three iron core column 2 of parallel longitudinal layout, described iron yoke assembly and iron core column assembly form " day " font fallen, and described iron core column 2 and iron yoke 1 form by silicon steel sheet 4 is stacked.Multi-disc spacer 3 is inserted with equally spacedly between the silicon steel sheet 4 of described composition iron yoke 1.Described spacer 3 is rectangle laminated structure, and the length of described spacer 3 is equal with the longest edge of silicon steel sheet 4, and described spacer 3 can cover the seam of iron yoke 1 and iron core column 2.Described spacer 3 is grain-oriented Si steel sheet.
the utility model is the improvement to conventional core structure, due to the coil without coiling on iron yoke 1, so it is simple and convenient to insert spacer 3 between the silicon steel sheet 4 of iron yoke 1, this type of improves the distribution making the magnetic flux distribution of iron yoke 1 be tending towards the magnetic flux density at uniform improvement iron core column 2 place that simultaneously also can be relative, thus make the core structure after improving no-load loss reduce.
as mentioned above, we are illustrated according to aim of the present utility model completely, but the utility model is not limited to above-described embodiment and implementation method.Different changes and enforcement is carried out in the scope that the practitioner of correlative technology field can permit at technological thought of the present utility model.
Claims (3)
1. the electrical transformer cores structure of a low no-load loss, comprise iron yoke assembly and iron core column assembly, described iron yoke assembly comprises the two iron yokes (1) be laterally arranged in parallel, described iron core column assembly is positioned between described two iron yokes (1), described iron core column assembly comprises three iron core column (2) of parallel longitudinal layout, described iron yoke assembly and iron core column assembly form " day " font fallen, described iron core column (2) and iron yoke (1) form by silicon steel sheet (4) is stacked, it is characterized in that: between the silicon steel sheet (4) of described composition iron yoke (1), be inserted with spacer (3), described spacer (3) is rectangle laminated structure, the length of described spacer (3) is equal with the longest edge of silicon steel sheet (4), described spacer (3) can cover the seam of iron yoke (1) and iron core column (2).
2. the electrical transformer cores structure of low no-load loss according to claim 1, is characterized in that: described spacer (3) is grain-oriented Si steel sheet.
3. the electrical transformer cores structure of low no-load loss according to claim 2, is characterized in that: described spacer (3) has multi-disc, and described spacer (3) is inserted between the silicon steel sheet (4) of composition iron yoke (1) equally spacedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520385050.6U CN204614623U (en) | 2015-06-05 | 2015-06-05 | A kind of electrical transformer cores structure of low no-load loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520385050.6U CN204614623U (en) | 2015-06-05 | 2015-06-05 | A kind of electrical transformer cores structure of low no-load loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204614623U true CN204614623U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520385050.6U Active CN204614623U (en) | 2015-06-05 | 2015-06-05 | A kind of electrical transformer cores structure of low no-load loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204614623U (en) |
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2015
- 2015-06-05 CN CN201520385050.6U patent/CN204614623U/en active Active
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