CN203631284U - Transformer with built-in filter reactor - Google Patents
Transformer with built-in filter reactor Download PDFInfo
- Publication number
- CN203631284U CN203631284U CN201320872449.8U CN201320872449U CN203631284U CN 203631284 U CN203631284 U CN 203631284U CN 201320872449 U CN201320872449 U CN 201320872449U CN 203631284 U CN203631284 U CN 203631284U
- Authority
- CN
- China
- Prior art keywords
- iron core
- transformer
- pressure winding
- built
- low pressure
- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 claims abstract description 94
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 75
- 238000009413 insulation Methods 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims description 4
- 230000009183 running Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
A transformer with a built-in filter reactor comprises a transformer main core, a primary low-voltage winding and a secondary high-voltage winding, wherein the primary low-voltage winding and the secondary high-voltage winding are arranged on the main core, and the primary low-voltage winding surrounds the outer side of the secondary high-voltage winding. The transformer is characterized in that an auxiliary core is arranged between the primary low-voltage winding and the secondary high-voltage winding, and the primary low-voltage winding penetrates a core window of the auxiliary core. The transformer can be applied to transformer products with built-in filter reactors.
Description
technical field:
The present invention relates to a kind of transformer of built-in filter reactor.
background technology:
In traditional solar inverter system conventionally by an inverter, one independently filter reactor and one independently isolating transformer etc. form.But, because reactor and transformer are all separate structures, install and take the space that inverter cabinet is very large separately inverter is inner, be unfavorable for effective utilization of inverter cabinet intracorporeal space.In addition, independently reactor and total losses of transformer are large, and energy conversion efficiency is low, and more wastes material, and cost is high.And when the parallel running simultaneously of two inverters, just need two inverters, two independent reactors, and two independent isolating transformers could move, the cost spending on reactor and transformer is too high.
summary of the invention:
The object of the present invention is to provide a kind of more small size, higher energy conversion efficiency, the transformer of built-in filter reactor more cheaply, and can realize and connect the parallel runnings simultaneously of two inverters.
The transformer of built-in filter reactor, comprises transformer main iron core and is arranged on elementary low pressure winding and the secondary high pressure winding on described main iron core, described elementary low pressure winding is looped around the outside of described secondary high pressure winding; It is characterized in that, between described elementary low pressure winding and secondary high pressure winding, be also provided with auxiliary iron core, described elementary low pressure winding is through the core window of described auxiliary iron core.
Further technical scheme can also be, described main iron core and described auxiliary iron core are gripped upper and lower clamping and positioning by iron respectively, then by pull bar, the iron of described main iron core, described auxiliary iron core is gripped and connected tension.
Further technical scheme can also be, described main iron core and described auxiliary iron core are all with having orientation or making without the silicon steel sheet lamination of orientation.
Further technical scheme can also be, the periphery of described main iron core, described auxiliary iron core is respectively arranged with rectangle insulation inner core skeleton, between described rectangle insulation inner core skeleton and iron core, uses fagging stretching.
Further technical scheme can also be that described elementary low pressure winding comprises two sub-windings, described two sub-windings separate connection input signal separately.
Further technical scheme can also be that described secondary high pressure winding is double winding parallel-connection structure.
Further technical scheme can also be, described auxiliary iron core comprises two points of iron cores, disconnects and distinguish two sub-windings of corresponding described elementary low pressure winding between described two points of iron cores.
Further technical scheme can also be that plural described auxiliary iron core is symmetrically distributed between described elementary low pressure winding and secondary high pressure winding.
According to technique scheme, its useful technique effect is:
1. owing to being also provided with auxiliary iron core between described elementary low pressure winding and secondary high pressure winding, for this reason, described auxiliary iron core is combined with described elementary low pressure winding, form an equivalent reactor, only has so the elementary low pressure winding of transformer to described auxiliary iron core excitation, so the elementary low pressure winding of reactor winding and transformer is common winding, the elementary low pressure winding of transformer is reactor winding, has greatly saved conductor material.
2. because main iron core and the auxiliary iron core of transformer have oriented silicon steel disc lamination to make by low-loss, three-phase three-limb structure, has the advantages such as no-load loss is low, noise is little;
3. transformer core is clamped by the upper and lower folder of transformer, and auxiliary iron core is also clamped by the upper and lower folder of auxiliary iron core, then strains respectively transformer core and auxiliary iron core with vertical connecting rod, and the mechanical strength of product and structural stability are improved greatly;
4. also designed a firm rectangle insulation inner core skeleton in winding inner side, used fagging stretching between skeleton and iron core, the impact of the radial electric power of coil on coil while effectively resisting short circuit, has improved the anti-short circuit capability of product.
5. because described elementary low pressure winding is to comprise two sub-windings, can access respectively two input signals in parallel, as the inverter of two parallel runnings for this reason.
6. because described secondary high pressure winding is double winding parallel-connection structure, for this reason in the time that the sub-winding of one of them armature winding quits work, can not cause the leakage reactance between elementary and secondary to increase, make output signal more steady.
Because the present invention has These characteristics and advantage, can be applied in the power transformer product of built-in filter reactor for this reason.
Accompanying drawing explanation
Fig. 1 is the structural representation of the power transformer product of application built-in filter reactor of the present invention;
Fig. 2 is the iron core of power transformer product and the relative structural representation of winding of application built-in filter reactor of the present invention, is also the profile of the A-A direction in Fig. 1;
Fig. 3 is the equivalent circuit structure schematic diagram that the elementary low pressure winding of the power transformer product of application built-in filter reactor of the present invention is splitted construction;
Fig. 4 is the equivalent circuit structure schematic diagram that the secondary high pressure winding of the power transformer product of application built-in filter reactor of the present invention is splitted construction.
Embodiment
Below in conjunction with accompanying drawing, the structure of the power transformer product of applying built-in filter reactor of the present invention is further described.
As depicted in figs. 1 and 2, the transformer of built-in filter reactor, comprise underframe 1, be arranged on the transformer main iron core 61 on described underframe 1 and be arranged on the winding 5 on described main iron core 61, described winding comprises elementary low pressure winding 51 and secondary high pressure winding 52, and described elementary low pressure winding 51 is looped around the outside of described secondary high pressure winding 52.Described elementary low pressure winding 51 has tap (11,12), and described secondary high pressure winding 52 has tap (21,22).
Between described elementary low pressure winding 51 and secondary high pressure winding 52, be also provided with auxiliary iron core 62, described elementary low pressure winding 51 is through the core window of described auxiliary iron core 62; Wherein, described main iron core 61 all has orientation with low-loss or makes without the silicon steel sheet lamination of orientation with described auxiliary iron core 62.Described like this auxiliary iron core 62 is combined with described elementary low pressure 51 windings, form an equivalent reactor L, only has so the elementary low pressure winding 51 of transformer to described auxiliary iron core 62 excitations, so the elementary low pressure winding of reactor winding and transformer is common winding, the elementary low pressure winding that is transformer is reactor winding, has greatly saved conductor material.Secondly, further technical scheme can also be that plural described auxiliary iron core 62 is symmetrically distributed between described elementary low pressure winding 51 and secondary high pressure winding 52 (not shown in FIG.).
Further technical scheme can also be, on described main iron core 61 and described auxiliary iron core 62, be respectively arranged with iron and grip and clamp the upper clamping element (41,42) that described iron is gripped, lower clamping element (33,34), between described upper clamping element 41 and lower clamping element 33, strained by pull bar 31, between described upper clamping element 42 and lower clamping element 34, strained by pull bar 32, described lower clamping element (33,34) is separately fixed on described underframe 1.
Further technical scheme can also be, the periphery of described main iron core 61 is provided with rectangle insulation inner core skeleton 64, and described secondary high pressure winding 52 is set in the periphery of described rectangle insulation inner core skeleton 64; The periphery of described auxiliary iron core 62 is also provided with rectangle insulation inner core skeleton 63, described elementary low pressure winding 51 is set in the periphery of described rectangle insulation inner core skeleton 63, and described rectangle insulate between inner core skeleton 64 and described main iron core 61, described rectangle insulate all uses fagging stretching between inner core skeleton 63 and described auxiliary iron core 62.
Further technical scheme can also be, described transformer is the transformer of Schizoid, and power is 100kVA.As shown in Figure 3, described elementary low pressure winding comprises the sub-winding that two power are 50kVA (k11, k12), and described secondary high pressure winding 52 is one group of winding, the inverter that the input of described two sub-windings (k11, k12) is 50kVA with a power is separately connected, thereby two inverters can parallel running.Between described inverter and described sub-winding (k11, k12), be that described auxiliary iron core and described sub-winding (k11, k12) induction form equivalent reactance device (L1, L2).Wherein further technical scheme can also be, described auxiliary iron core 62 comprises two points of iron cores, disconnects and distinguish two sub-windings (k11, k12) of corresponding described elementary low pressure winding 51 between described two points of iron cores.
Further technical scheme can also be, as shown in Figure 4, from different shown in Fig. 3, described secondary high pressure winding is double winding (k21, k22), output after described double winding (k21, k22) is connected in parallel.
Claims (8)
1. the transformer of built-in filter reactor, comprises transformer main iron core and is arranged on elementary low pressure winding and the secondary high pressure winding on described main iron core, described elementary low pressure winding is looped around the outside of described secondary high pressure winding; It is characterized in that, between described elementary low pressure winding and secondary high pressure winding, be also provided with auxiliary iron core, described elementary low pressure winding is through the core window of described auxiliary iron core.
2. the transformer of built-in filter reactor according to claim 1, is characterized in that, described main iron core and described auxiliary iron core are gripped upper and lower clamping and positioning by iron respectively, then by pull bar, the iron of described main iron core, described auxiliary iron core is gripped and connected tension.
3. the transformer of built-in filter reactor according to claim 1, is characterized in that, described main iron core and described auxiliary iron core are all with having orientation or making without the silicon steel sheet lamination of orientation.
4. according to the transformer of the built-in filter reactor described in claim 1,2 or 3, it is characterized in that, the periphery of described main iron core, described auxiliary iron core is respectively arranged with rectangle insulation inner core skeleton, between described rectangle insulation inner core skeleton and iron core, uses fagging stretching.
5. according to the transformer of the built-in filter reactor described in claim 1,2 or 3, it is characterized in that, described elementary low pressure winding comprises two sub-windings, described two sub-windings separate connection input signal separately.
6. the transformer of built-in filter reactor according to claim 5, is characterized in that, described secondary high pressure winding is double winding parallel-connection structure.
7. the transformer of built-in filter reactor according to claim 5, is characterized in that, described auxiliary iron core comprises two points of iron cores, disconnects and distinguish two sub-windings of corresponding described elementary low pressure winding between described two points of iron cores.
8. according to the transformer of the built-in filter reactor described in claim 1,2 or 3, it is characterized in that, plural described auxiliary iron core is symmetrically distributed between described elementary low pressure winding and secondary high pressure winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320872449.8U CN203631284U (en) | 2013-12-27 | 2013-12-27 | Transformer with built-in filter reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320872449.8U CN203631284U (en) | 2013-12-27 | 2013-12-27 | Transformer with built-in filter reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203631284U true CN203631284U (en) | 2014-06-04 |
Family
ID=50817739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320872449.8U Expired - Lifetime CN203631284U (en) | 2013-12-27 | 2013-12-27 | Transformer with built-in filter reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203631284U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252045A (en) * | 2016-08-29 | 2016-12-21 | 苏州腾冉电气设备股份有限公司 | A kind of with post conjugation filter transformer |
| CN115691946A (en) * | 2022-12-29 | 2023-02-03 | 清华大学 | High-frequency transformer and leakage inductance improving method thereof |
| CN117334433A (en) * | 2023-12-01 | 2024-01-02 | 保定市恒光电气机械有限公司 | Miniaturized high-frequency high-voltage transformer |
-
2013
- 2013-12-27 CN CN201320872449.8U patent/CN203631284U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252045A (en) * | 2016-08-29 | 2016-12-21 | 苏州腾冉电气设备股份有限公司 | A kind of with post conjugation filter transformer |
| CN115691946A (en) * | 2022-12-29 | 2023-02-03 | 清华大学 | High-frequency transformer and leakage inductance improving method thereof |
| CN117334433A (en) * | 2023-12-01 | 2024-01-02 | 保定市恒光电气机械有限公司 | Miniaturized high-frequency high-voltage transformer |
| CN117334433B (en) * | 2023-12-01 | 2024-03-01 | 保定市恒光电气机械有限公司 | Miniaturized high-frequency high-voltage transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101540227B (en) | Center tapped transformer | |
| US9812252B2 (en) | Rolled iron core traction transformer | |
| CN104471654A (en) | Hybrid transformer cores | |
| CN104078195B (en) | three-phase coupling reactor and converter | |
| CN203631284U (en) | Transformer with built-in filter reactor | |
| CN103050260A (en) | 330kV-level three-phase three-winding high-impedance power auto-transformer with function of on-load voltage regulation | |
| WO2013078845A1 (en) | Single phase transformer | |
| CN201298427Y (en) | Oil-filled transformer | |
| US11587719B2 (en) | Magnetic integrated hybrid distribution transformer | |
| CN202178139U (en) | Two-split rectifier transformer | |
| CN101640120A (en) | Transformer changing from three phases to single phase | |
| CN104134524A (en) | 36-pulse-wave phase shifting rectifier transformer | |
| CN209859774U (en) | Power supply intelligent control type power energy-saving transformer with deep integration | |
| CN214279763U (en) | Axial double-split single-phase dry-type transformer | |
| CN105405612A (en) | Transformer for high-voltage output | |
| CN103413663B (en) | A kind of high-power high-frequency high-voltage rectifier transformer | |
| CN102801240B (en) | Alternating current motor wave winding and transpositional connection method thereof | |
| CN205845664U (en) | The amorphous alloy transformer winding construction that anti-short circuit capability is high | |
| CN201812647U (en) | Dry type grounding transformer | |
| CN203013483U (en) | Efficient silence non-crystal dry type transformer | |
| CN203242469U (en) | Oil-immersed transformer | |
| CN207558557U (en) | A kind of amorphous alloy transformer body structure for having anti-short circuit capability | |
| CN207425511U (en) | The continuously adjustable iron core reactor of inductance value | |
| CN106205975A (en) | A kind of transformator balanced coil structure | |
| CN201562576U (en) | multi-phase transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211231 Address after: 528000 No. 4, Huanzhen East Road, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee after: FOSHAN SHUNDE EAGLERISE ELECTRIC POWER TECHNOLOGY Co.,Ltd. Patentee after: JI'AN IGOR ELECTRIC Co.,Ltd. Patentee after: Ji'an Igor magnetoelectric Technology Co.,Ltd. Patentee after: EAGLERISE ELECTRIC & ELECTRONIC (CHINA) Co.,Ltd. Address before: 528200, A3, Guicheng science and Technology Park, Jian Ping Road, Nanhai District, Guangdong, Foshan Patentee before: EAGLERISE ELECTRIC & ELECTRONIC (CHINA) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |