CN203552915U - Variable-frequency power source transformer - Google Patents
Variable-frequency power source transformer Download PDFInfo
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- CN203552915U CN203552915U CN201320676965.3U CN201320676965U CN203552915U CN 203552915 U CN203552915 U CN 203552915U CN 201320676965 U CN201320676965 U CN 201320676965U CN 203552915 U CN203552915 U CN 203552915U
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- Prior art keywords
- magnetic core
- frequency power
- skeleton
- secondary winding
- power supply
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- 238000004804 winding Methods 0.000 claims abstract description 60
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011889 copper foil Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 6
- 238000005192 partition Methods 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The embodiment of the utility model discloses a variable-frequency power source transformer which comprises a first magnetic core, a second magnetic core, frameworks and a ground line, wherein coils are wound on the first magnetic core and on the second magnetic core, and the ground line is connected with the first magnetic core. The frameworks comprise a primary winding framework and a secondary winding framework. The coils are wound on a middle post of the first magnetic core and a side post of the second magnetic core respectively through the primary winding framework and the secondary winding framework. The winding portion of the secondary winding framework is provided with more than two grooves used for winding. The number of the grooves is five. The width of each groove is 5mm. A partition board which is used for increasing insulating strength between a primary winding and the first magnetic core and between a secondary winding and the second magnetic core is arranged between the primary winding framework and the secondary winding framework. By means of the variable-frequency power source transformer, the number of winding layers is reduced, the lengths of enamelled wires are halved, temperature rising of the coils can be effectively controlled, reliability is improved, the use quantity of materials is reduced, and accordingly cost is saved.
Description
Technical field
The utility model relates to a kind of transformer, relates in particular to a kind of variable frequency power supply transformer.
Background technology
Current micro-wave oven transformer is on the market mainly that employing UYF type Magnetic Core Design, this transformer working principle are mainly to utilize the center pillar of magnetic core to do energy conversion, and its fundamental diagram as shown in Figure 1.In structure, comprise skeleton 1, the first magnetic core 2, the second magnetic core 3, catch 4, ground wire 5, lead-in wire 6 and groove 7, as shown in Figures 2 and 3, this structure exist following shortcoming (combination:
(1) insulation between the winding on magnetic core 2,3 and skeleton 1 utilizes the insulation of plastics square card lid, and between winding and magnetic core, easily sparking, causes defective insulation;
(2) magnetic core 2,3 ground connection are utilized longer copper cash 5 ground connection; Cause the waste of material;
(3) winding forms with multi cord coiling, and the coiling number of plies is more, causes winding level heat serious;
(4) what skeleton 1 adopted is plastic material, easily fractures;
(5) volume is relatively large;
(6) adopt monolateral coiling, be that primary and secondary winding is entirely on center pillar;
(7) skeleton 1 is integrated, between winding, can not dismantle;
(8) power factor (PF) (PF) value is generally between 0.96 to 0.97;
(9) winding temperature rise is higher, and full-load run temperature is 110 ℃ of left and right.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of variable frequency power supply transformer is provided, and the coiling number of plies reduces, enamelled wire length reduces half, and effectively control line bag heats up, and has increased reliability, and reduced the consumption of material, thereby also just provided cost savings.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of variable frequency power supply transformer, comprise the first magnetic core and the second magnetic core, skeleton and the ground wire being connected with described the first magnetic core that are all wound with coil, described skeleton comprises armature winding skeleton and secondary winding skeleton; Described coil by described armature winding skeleton and secondary winding skeleton respectively on the center pillar and side column of described the first magnetic core and the second magnetic core; The winding portion of described secondary winding skeleton is provided with the groove for winding the line; Described groove is at least two.
For the improvement of technique scheme, described groove is five.
For the further improvement of technique scheme, the width of described groove is 5mm.
For the further improvement of technique scheme, between described armature winding skeleton and secondary winding skeleton, be provided with the dividing plate for increasing dielectric strength between primary and secondary winding and the first magnetic core and the second magnetic core.
For the further improvement of technique scheme, the bottom of described the second magnetic core is provided with bottom.
For the further improvement of technique scheme, described ground wire is ground connection Copper Foil.
Implement the utility model embodiment, there is following beneficial effect:
Secondary winding skeleton in variable frequency power supply transformer described in the utility model adopts a minute groove design, and this design can effectively prevent secondary coil turn-to-turn short circuit.Skeleton is divided into two parts simultaneously, be armature winding skeleton and secondary winding skeleton, be convenient to partition, also make armature winding skeleton fabric width wider, when around the same number of turns, compare with traditional transformer, the coiling number of plies can reduce half, knee envelope curve length reduces half, effectively control line bag temperature rise, increases transformer reliability, reduces material usage and cost.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, does not form to improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is the fundamental diagram of existing transformer in the utility model background technology;
Fig. 2 is the perspective view of existing transformer in the utility model background technology;
Fig. 3 is the explosive view of existing transformer in the utility model background technology;
Fig. 4 is the fundamental diagram of a kind of variable frequency power supply transformer of providing of the utility model embodiment;
Fig. 5 is the front view of a kind of variable frequency power supply transformer of providing of the utility model embodiment;
The upward view of a kind of variable frequency power supply transformer that Fig. 6 provides for the utility model embodiment;
The explosive view of a kind of variable frequency power supply transformer that Fig. 7 provides for the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, describe the utility model in detail, in this illustrative examples of the present utility model and explanation, be used for explaining the utility model, but not as to restriction of the present utility model.
Embodiment:
As shown in Figure 4, Figure 5, Figure 6 and Figure 7, variable frequency power supply transformer described in the utility model, comprises the first magnetic core 1, the second magnetic core 2, skeleton 3 and ground wire 4; Described the first magnetic core 1 and the second magnetic core 1 are all wound with coil, described skeleton 3 comprises armature winding skeleton 5 and secondary winding skeleton 6, the two in use can break, be convenient to install, and described coil by described armature winding skeleton 5 and secondary winding skeleton 6 respectively on the center pillar and side column of described the first magnetic core 1 and the second magnetic core 2; The winding portion of described secondary winding skeleton 6 is provided with the groove 7 for winding the line simultaneously, and it is at least two, and groove 7 can, by coiling layering, effectively prevent secondary coil turn-to-turn short circuit.Coil is respectively on armature winding skeleton 5 and secondary winding skeleton 6 simultaneously, make the winding portion of armature winding skeleton wider, at the coil around the same number of turns, than traditional transformer, compare, its coiling number of plies can reduce half, and enamelled wire length also reduces half simultaneously, and the design of minute groove makes the coiling of every layer can be not too many, thereby effectively controlled the temperature rise of line bag, increased the reliability of transformer, reduced consumption and the cost of material.Described groove 7 is to adopt five designs the most suitable, and the width of each groove 7 is 5mm.
For the improvement of technique scheme, between described armature winding skeleton 5 and secondary winding skeleton 6, be provided with dividing plate 8, described dividing plate is for increasing the dielectric strength between primary and secondary winding and the first magnetic core 1 and the second magnetic core 2.
For the further improvement of technique scheme, the bottom of described the second magnetic core 2 is provided with bottom 9, and described bottom 9 can effectively increase the dielectric strength between the second magnetic core 2 bottoms and winding and outlet terminal.
For the further improvement of technique scheme, described ground wire 4 is ground connection Copper Foil.This design is to utilize Copper Foil the first magnetic core 1 to be received to the screw hole position of armature winding skeleton 5, when external pcb board assembles with variable frequency power supply transformer described in the utility model, by screw, is connected with Copper Foil, forms ground connection.This design can be effectively fixing variable frequency power supply transformer, and cost is lower, more reliable.
Variable frequency power supply transformer described in the utility model is combined transformer, effectively utilize the side column (primary and secondary winding is respectively at center pillar and the side column of the first magnetic core 1 and the second magnetic core 2) of the first magnetic core 1 and the second magnetic core 2, effectively dielectric strength is brought up to withstand voltage 10KV, and do not needed embedding and soak varnish.Simultaneously effectively reduced iron loss and copper loss, and PF value can reach 0.99 or more than, make product more energy-conservation, the harmonic pollution of minimizing product to electrical network.Divide groove design to make the coiling number of plies of skeleton 3 reduce over half, copper loss reduces a lot, temperature can be reduced to by 110 original degree 90 degree left and right, also just extend useful life, the minimizing of layer capacitance makes variable frequency power supply transformer parasitic parameter, and on properties of product, impact reduces, and makes the serviceability in microwave oven Switching Power Supply higher.
The technical scheme above the utility model embodiment being provided is described in detail, applied specific case herein the principle of the utility model embodiment and execution mode are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; , for one of ordinary skill in the art, according to the utility model embodiment, in embodiment and range of application, all will change, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (6)
1. a variable frequency power supply transformer, comprises the first magnetic core (1) and the second magnetic core (2), skeleton (3) and the ground wire (4) being connected with described the first magnetic core (1) that are all wound with coil, it is characterized in that:
Described skeleton (3) comprises armature winding skeleton (5) and secondary winding skeleton (6);
Described coil by described armature winding skeleton (5) and secondary winding skeleton (6) respectively on the center pillar and side column of described the first magnetic core (1) and the second magnetic core (2);
The winding portion of described secondary winding skeleton (6) is provided with the groove (7) for winding the line;
Described groove (7) is at least two.
2. variable frequency power supply transformer according to claim 1, is characterized in that:
Described groove (7) is five.
3. variable frequency power supply transformer according to claim 2, is characterized in that:
The width of described groove (7) is 5mm.
4. variable frequency power supply transformer according to claim 1, is characterized in that:
Between described armature winding skeleton (5) and secondary winding skeleton (6), be provided with the dividing plate (8) for increasing dielectric strength between primary and secondary winding and the first magnetic core (1) and the second magnetic core (2).
5. variable frequency power supply transformer according to claim 1, is characterized in that:
The bottom of described the second magnetic core (2) is provided with bottom (9).
6. variable frequency power supply transformer according to claim 1, is characterized in that:
Described ground wire (4) is ground connection Copper Foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320676965.3U CN203552915U (en) | 2013-10-30 | 2013-10-30 | Variable-frequency power source transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320676965.3U CN203552915U (en) | 2013-10-30 | 2013-10-30 | Variable-frequency power source transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552915U true CN203552915U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320676965.3U Expired - Lifetime CN203552915U (en) | 2013-10-30 | 2013-10-30 | Variable-frequency power source transformer |
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| Country | Link |
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| CN (1) | CN203552915U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167286A (en) * | 2013-10-30 | 2014-11-26 | 佛山市顺德区尚研电子科技有限公司 | Variable-frequency power transformer |
| CN104240920A (en) * | 2014-09-15 | 2014-12-24 | 广东美的厨房电器制造有限公司 | Transformer |
| CN108717893A (en) * | 2018-03-14 | 2018-10-30 | 苏州博思得电气有限公司 | Transformer, mono-tank and ray image documentation equipment |
-
2013
- 2013-10-30 CN CN201320676965.3U patent/CN203552915U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167286A (en) * | 2013-10-30 | 2014-11-26 | 佛山市顺德区尚研电子科技有限公司 | Variable-frequency power transformer |
| CN104240920A (en) * | 2014-09-15 | 2014-12-24 | 广东美的厨房电器制造有限公司 | Transformer |
| CN108717893A (en) * | 2018-03-14 | 2018-10-30 | 苏州博思得电气有限公司 | Transformer, mono-tank and ray image documentation equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Beijiao town Shunde District Guangdong city Foshan province 528300 neighborhood along the river road eleven No. 25 Shunde Sanle Innovation Industry Park Patentee after: GUANGDONG SONG RESEARCH ELECTRONIC TECHNOLOGY CO.,LTD. Address before: Beijiao town Shunde District Guangdong city Foshan province 528300 neighborhood along the River Road No. 25 in two, A building third, four floor Patentee before: SONG RESEARCH ELECTRONIC TECHNOLOGY CO.,LTD. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |