CN213635632U - Transformer for controlling power supply - Google Patents
Transformer for controlling power supply Download PDFInfo
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- CN213635632U CN213635632U CN202022889890.XU CN202022889890U CN213635632U CN 213635632 U CN213635632 U CN 213635632U CN 202022889890 U CN202022889890 U CN 202022889890U CN 213635632 U CN213635632 U CN 213635632U
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- 229910000976 Electrical steel Inorganic materials 0.000 claims description 10
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
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Abstract
The utility model provides a transformer for control power supply. The transformer comprises a magnetic core, a primary winding, a secondary winding, a shell, a tapping tap and an insulating layer; the primary winding is used for forming an induced magnetic field in the magnetic core through current, and the secondary winding induces current under the condition of generating a changing magnetic field in the magnetic core. The housing internally encloses the primary winding and the secondary winding of the transformer for controlling power supply; the tapping tap is respectively connected with the primary winding and the secondary winding and used for transmitting electric energy and adjusting the voltage transformation ratio between input and output, the insulating layers are arranged in the primary winding and the secondary winding, and the magnetic core is arranged in the insulating layers. The utility model discloses can carry out appropriate voltage transformation ratio adjustment to the output range of power according to control circuit's demand, and the winding insulation of independent design and heat dissipation, voltage output is stable.
Description
Technical Field
The utility model relates to a power field, in particular to transformer for control power.
Background
With the development of power electronic technology, the number of traditional devices controlled by PLC is continuously decreasing, and the number of related devices controlled by power electronic technology is continuously increasing. In particular, in the field of controlling motors or mechanical devices, there are more and more situations in which the control of power and movement of an object is achieved by means of controllable semiconductor devices. However, the conventional power supply for control generally has the condition that the output is not particularly stable, and although some power supplies have quite stable outputs, the voltage and the current of the output and the fixation of the voltage and the current are difficult to adjust according to requirements. Therefore, due to the fixed structure, large output power fluctuation and other factors, the conventional transformer is not suitable for the field of the current control power supply.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides an input power supply for extreme stability control, and in control process, the output that can not produce voltage or electric current is undulant, can carry out the scope of appropriate adjustment output voltage or electric current according to the demand in addition.
In order to solve the above problem, the utility model provides a transformer for control power supply, the technical scheme of its adoption as follows: the transformer for controlling the power supply comprises a magnetic core, a primary winding, a secondary winding, a shell, a tapping tap and an insulating layer; the primary winding is used for forming an induced magnetic field in the magnetic core through current, and the secondary winding induces current under the condition of generating a changing magnetic field in the magnetic core. The housing internally encloses the primary winding and the secondary winding of the transformer for controlling power supply; the tapping tap is respectively connected with the primary winding and the secondary winding and used for transmitting electric energy and adjusting the voltage transformation ratio between input and output, the insulating layers are arranged in the primary winding and the secondary winding, and the magnetic core is arranged in the insulating layers.
Preferably, the magnetic core is made of a silicon steel sheet after heat treatment.
Preferably, the thickness of the magnetic core is 0.36mm, and the magnetic core is made of E-shaped silicon steel sheets
Preferably, the housing comprises 12 interfaces of the tap taps;
the tapping taps connected with the primary winding are arranged on the front row of the shell, the total number of the tapping taps connected with the primary winding is 6, the tapping taps connected with the secondary winding are arranged on the rear row of the shell, and the total number of the tapping taps connected with the secondary winding is 6;
the distance between the tap connected to the primary winding and the tap connected to the secondary winding is 22.5 cm.
Preferably, the tap connected to the primary winding comprises 1 input tap, in particular a first primary winding input;
the tap taps connected with the primary windings comprise 5 input taps, specifically, a first primary winding output, a second primary winding output, a third primary winding output, a fourth primary winding output and a fifth primary winding output;
the first primary winding output, the second primary winding output, the third primary winding output, the fourth primary winding output, and the fifth primary winding output are compared with 1 time, 1.2 times, 1.4 times, 1.8 times, and 2.0 times of a rated turns ratio, respectively.
Preferably, the tap connected to the secondary winding comprises 1 input tap, in particular a first secondary winding input;
the tap taps connected with the primary winding comprise 5 input tap taps, specifically, a first secondary winding output, a second secondary winding output, a third secondary winding output, a fourth secondary winding output and a fifth secondary winding output;
the first secondary winding output, the second secondary winding output, the third secondary winding output, the fourth secondary winding output and the fifth secondary winding output are respectively compared with 1 time, 1.2 times, 1.4 times, 1.8 times and 2.0 times of rated turn ratio.
Preferably, the cross-sectional area of the bottom of the housing is 29cm x 29cm, the height of the housing is 28, and the length of the largest cross-section of the housing is 36 cm.
Preferably, the diameter of the tapping tap is 0.8cm, and the distance between adjacent taps is 5 cm;
the primary winding tap is centered on a straight line and the secondary winding tap is centered on a straight line.
Preferably, the primary winding has a rated turn number of 1142, and the secondary winding has a rated turn number of 255.
Preferably, the insulating layer includes a first insulating layer and a second insulating layer; the first insulating layer is between the housing and the primary winding, and three layers of insulating paper are used.
Preferably, the second insulating layer is between the housing and the secondary winding, and three layers of insulating paper are used.
The utility model has the advantages that:
(1) the utility model discloses the scheme has adopted high-power current-voltage output, and has designed device parameter, insulating interval and heat dissipation, makes inductor output very stable.
(2) The utility model discloses the scheme has adopted multistage input and output mode, can realize multistage transformer output according to demand adjustment binding post position.
Drawings
Fig. 1 is a structural diagram of a transformer for controlling a power supply according to an embodiment of the present invention.
Fig. 2 is a schematic circuit diagram of a transformer for controlling a power supply according to an embodiment of the present invention.
Fig. 3 is a winding stacking diagram of a transformer for controlling a power supply according to an embodiment of the present invention.
Fig. 4 is a front view of a transformer for controlling a power supply according to an embodiment of the present invention.
Fig. 5 is a side view of a transformer for controlling a power supply according to an embodiment of the present invention.
Fig. 6 is a bottom view of a transformer for controlling a power supply according to an embodiment of the present invention.
Detailed Description
The present disclosure is described below based on embodiments, but the present disclosure is not limited to only these embodiments. In the following detailed description of the present disclosure, certain specific details are set forth in detail. A full understanding of the present disclosure may be gained to those skilled in the art without the benefit of this description. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present disclosure.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout this specification, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present disclosure, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present disclosure, "a plurality" means two or more unless otherwise specified.
The power transformer is a soft magnetic electromagnetic element, has the functions of power transmission, voltage transformation and insulation isolation, and is widely applied to power supply technology and power electronic technology. Depending on the amount of power delivered, power transformers can be divided into several steps: the power is more than 10kVA, the medium power is 10 kVA-0.5 kVA, the small power is 0.5 kVA-25 VA, and the micro power is less than 25 VA. The power transformer is designed differently for different transmission powers. The step-up and step-down are accomplished with different taps. The principle is the same as that of a common transformer, except that the primary coil is the secondary coil, the common transformer is that the left primary coil generates voltage through electromagnetic induction by the right secondary coil, and the autotransformer affects the transformer.
The autotransformer is a transformer with only one winding, and when the autotransformer is used as a step-down transformer, a part of wire turns are extracted from the winding to be used as a secondary winding; when used as a step-up transformer, the applied voltage is applied to only a portion of the turns of the winding. The part of the winding belonging to the primary and the secondary is generally called a common winding, the rest part of the autotransformer is called a series winding, and the autotransformer with the same capacity has small size and high efficiency compared with the common transformer, and the larger the capacity of the transformer is, the higher the voltage is. This advantage is all the more prominent. Therefore, with the development of power systems, the improvement of voltage classes and the increase of transmission capacity, the self-coupling transformer is widely applied due to large capacity, small loss and low manufacturing cost.
As shown in fig. 1, fig. 1 is a structural diagram of a transformer for controlling a power supply according to an embodiment of the present invention. The transformer for controlling the power supply comprises a magnetic core 1, a primary winding 2, a secondary winding 3, a shell 4, a tapping tap 5 and an insulating layer 6; the primary winding 2 is used for forming an induced magnetic field in the magnetic core 1 through current, and the secondary winding 3 induces current under the condition of generating a changing magnetic field in the magnetic core 1. The housing 4 internally encloses the primary winding 2 and the secondary winding 3 of the transformer for controlling power supply; the tapping tap 5 is respectively connected with the primary winding 2 and the secondary winding 3 and is used for transmitting electric energy and adjusting the voltage transformation ratio between input and output, the insulating layer 6 is arranged inside the primary winding 2 and the secondary winding 3, and the magnetic core 1 is arranged inside the insulating layer 6.
The magnetic core 1 is made of a silicon steel sheet after heat treatment.
The thickness of magnetic core 1 is 0.36mm, magnetic core 1 adopts the silicon steel sheet of E type.
Wherein, the silicon steel sheet is a ferrosilicon soft magnetic alloy with extremely low carbon content, and the silicon content is generally 0.5 to 4.5 percent. The addition of silicon can improve the resistivity and the maximum magnetic conductivity of iron, and reduce the coercive force, the iron core loss (iron loss) and the magnetic aging. The production of silicon steel sheets is known as an artwork in steel products, especially oriented silicon steel sheets, due to the complex process, narrow process window and high production difficulty. The silicon steel sheet can be used as an iron core of a transformer by utilizing the characteristic of high magnetic permeability.
As shown in fig. 2, fig. 2 is a schematic circuit diagram of a transformer for controlling a power supply according to an embodiment of the present invention.
The tap 5 connected to the primary winding 2 comprises 1 input tap, in particular a first primary winding input;
the tap 5 connected with the primary winding 2 comprises 5 input taps, specifically, a first primary winding output, a second primary winding output, a third primary winding output, a fourth primary winding output and a fifth primary winding output;
the first primary winding output, the second primary winding output, the third primary winding output, the fourth primary winding output, and the fifth primary winding output are compared with 1 time, 1.2 times, 1.4 times, 1.8 times, and 2.0 times of a rated turns ratio, respectively.
Preferably, the rated number of turns of the primary winding 2 is 1142, and the rated number of turns of the secondary winding 3 is 255.
Fig. 3 is a winding stacking diagram of a transformer for controlling a power supply according to an embodiment of the present invention, as shown in fig. 3.
The insulating layer 6 includes a first insulating layer and a second insulating layer; the first insulating layer is between the housing 4 and the primary winding 2, using three layers of insulating cardboard.
The second insulating layer is arranged between the shell 4 and the secondary winding 3 and adopts three layers of insulating paper boards.
The electrical insulating paper board is made of 100% pure sulfate wood pulp, can be thoroughly dried, deaerated and oiled by vacuum drying, has good electrical performance and mechanical performance, and is the most common insulating material in oil-immersed transformers. The heat resistance grade of the insulating paperboard is Y grade, and the insulating paperboard becomes A grade after being soaked in oil.
In the embodiment, the insulation mode reasonably realizes the insulation effect.
As shown in fig. 4, 5 and 6, fig. 4 is a front view of a transformer for controlling a power supply according to an embodiment of the present invention. Fig. 5 is a side view of a transformer for controlling a power supply according to an embodiment of the present invention. Fig. 6 is a bottom view of a transformer for controlling a power supply according to an embodiment of the present invention.
The housing 4 comprises 12 interfaces of the tap 5;
wherein, the tapping taps 5 connected with the primary winding 2 are arranged in the front row of the shell 4, the total number of the tapping taps 5 connected with the primary winding 2 is 6, the tapping taps 5 connected with the secondary winding 3 are arranged in the rear row of the shell 4, and the total number of the tapping taps 5 connected with the secondary winding 3 is 6;
the distance between the tap 5 connected to the primary winding 2 and the tap 5 connected to the secondary winding 3 is 22.5 cm.
The tap 5 connected to the secondary winding 3 comprises 1 input tap, in particular a first secondary winding input;
the tap 5 connected with the primary winding 2 comprises 5 input taps, specifically, a first secondary winding output, a second secondary winding output, a third secondary winding output, a fourth secondary winding output and a fifth secondary winding output;
the first secondary winding output, the second secondary winding output, the third secondary winding output, the fourth secondary winding output and the fifth secondary winding output are respectively compared with 1 time, 1.2 times, 1.4 times, 1.8 times and 2.0 times of rated turn ratio.
The cross-sectional area of the bottom of the housing 4 is 29cm by 29cm, the height of the housing 4 is 28, and the length of the largest cross-section of the housing 4 is 36 cm.
The diameter of each tapping tap 5 is 0.8cm, and the distance between every two adjacent tapping taps is 5 cm;
the taps of the primary winding 2 are centered on a straight line, and the taps of the secondary winding 3 are centered on a straight line.
In this embodiment, the power of the transformer is 2W, the input and output voltages are 48V and 24V, respectively, and the corresponding utility grid frequency is 60 Hz.
In addition to the small size of the power transformer, there is no clear line of demarcation between the power transformer and the electronic transformer. The power supplies typically providing 60Hz power networks are quite large and may be as large as a half-continent area covered. The power limitations of electronic devices are usually limited by rectification, amplification, and the ability of other components of the system to amplify power, but still fall within the small power range as compared to the power system's ability to generate power. Various electronic equipment is commonly used for transformers for the following reasons: providing various voltage levels to ensure proper operation of the system; providing a system in which parts operating at different potentials are electrically isolated; providing a high impedance to alternating current, but a low impedance to direct current; the waveform and frequency response are maintained or modified at different potentials.
The utility model discloses can carry out appropriate voltage transformation ratio adjustment to the output range of power according to control circuit's demand, and because insulating and heat dissipation design problem, voltage output is stable.
The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (10)
1. A transformer for controlling a power supply, comprising a magnetic core, a primary winding, a secondary winding, a housing, a tap, and an insulating layer; the primary winding is used for forming an induced magnetic field in the magnetic core through current, and the secondary winding induces current under the condition of generating a changing magnetic field in the magnetic core; the housing internally encloses the primary winding and the secondary winding of the transformer for controlling power supply; the tapping tap is respectively connected with the primary winding and the secondary winding and used for transmitting electric energy and adjusting the voltage transformation ratio between input and output, the insulating layers are arranged in the primary winding and the secondary winding, and the magnetic core is arranged in the insulating layers.
2. The transformer for controlling a power supply of claim 1, wherein the magnetic core is a heat-treated silicon steel sheet.
3. The transformer for controlling power supply of claim 1, wherein the thickness of the magnetic core is 0.36mm, and the magnetic core is made of E-shaped silicon steel sheets.
4. A transformer for controlling a power supply according to claim 1, wherein said housing includes 12 said tap interfaces;
the tapping taps connected with the primary winding are arranged on the front row of the shell, the total number of the tapping taps connected with the primary winding is 6, the tapping taps connected with the secondary winding are arranged on the rear row of the shell, and the total number of the tapping taps connected with the secondary winding is 6;
the distance between the tap connected to the primary winding and the tap connected to the secondary winding is 22.5 cm.
5. A transformer for controlling a power supply according to claim 4, wherein said tap connected to said primary winding comprises 1 input tap, in particular a first primary winding input;
the tap taps connected with the primary windings comprise 5 input taps, specifically, a first primary winding output, a second primary winding output, a third primary winding output, a fourth primary winding output and a fifth primary winding output;
the first primary winding output, the second primary winding output, the third primary winding output, the fourth primary winding output, and the fifth primary winding output are compared with 1 time, 1.2 times, 1.4 times, 1.8 times, and 2.0 times of a rated turns ratio, respectively.
6. A transformer for controlling a power supply according to claim 5, wherein said tap connected to said secondary winding comprises 1 input tap, in particular a first secondary winding input;
the tap taps connected with the primary winding comprise 5 input tap taps, specifically, a first secondary winding output, a second secondary winding output, a third secondary winding output, a fourth secondary winding output and a fifth secondary winding output;
the first secondary winding output, the second secondary winding output, the third secondary winding output, the fourth secondary winding output and the fifth secondary winding output are respectively compared with 1 time, 1.2 times, 1.4 times, 1.8 times and 2.0 times of rated turn ratio.
7. A transformer for controlling power according to claim 6, wherein the cross-sectional area of the bottom of the housing is 29cm x 29cm, the height of the housing is 28, and the length of the largest cross-section of the housing is 36 cm.
8. The transformer for controlling power supply of claim 7, wherein the tap diameter is 0.8cm and the distance between adjacent taps is 5 cm;
the primary winding tap is centered on a straight line, and the secondary winding tap is centered on a straight line;
the rated turn number of the primary winding is 1142, and the rated turn number of the secondary winding is 255.
9. The transformer for controlling a power supply of claim 8, wherein the insulating layer comprises a first insulating layer and a second insulating layer; the first insulating layer is between the housing and the primary winding, and three layers of insulating paper are used.
10. A transformer for a control power supply according to claim 9, wherein said second insulating layer is provided by three layers of insulating paper between said housing and said secondary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022889890.XU CN213635632U (en) | 2020-12-04 | 2020-12-04 | Transformer for controlling power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022889890.XU CN213635632U (en) | 2020-12-04 | 2020-12-04 | Transformer for controlling power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213635632U true CN213635632U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022889890.XU Expired - Fee Related CN213635632U (en) | 2020-12-04 | 2020-12-04 | Transformer for controlling power supply |
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| Country | Link |
|---|---|
| CN (1) | CN213635632U (en) |
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2020
- 2020-12-04 CN CN202022889890.XU patent/CN213635632U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210706 Termination date: 20211204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |