CN111755232A - A wide-range multi-gear adjustable buck-boost user transformer - Google Patents

Abstract

The invention relates to the technical field of user transformer equipment, and provides a user transformer with a wide range and multiple gears that can be adjusted up and down. The wire loop includes an annular magnetic core on which pure copper windings are wound. The invention overcomes the deficiencies of the prior art, has a reasonable design and a compact structure, and solves the problem that the existing voltage stabilizer is difficult to regulate the ultra-wide range of lower and higher voltages, resulting in unusable electrical appliances or high loss or even damage. The problem is that the present invention can easily check the input voltage by setting the voltage display screen through a simple structure combination, and then switch the copper wire joints with different turns ratio through the commutation switch, and then conveniently adjust the higher and lower voltages to the rated output. voltage, improve energy conversion, reduce losses, and have strong practicability.

Description

A wide-range multi-gear adjustable buck-boost user transformer

technical field

The invention relates to the technical field of user transformer equipment, in particular to a user transformer with wide-range and multi-step adjustable and adjustable voltage and voltage.

Background technique

Electricity is an energy source that uses electrical energy as power and was invented in the 1870s. The invention and application of electric power set off the second climax of industrialization. Now people's daily life and social development are inseparable from electric power. As an electric power enterprise that produces and transmits electric power to users, due to the large number of users it serves, each user The power consumption is not constant, and the local power consumption changes. Power companies often need to continuously control the transmission of low-voltage distribution network power, such as unbalanced adjustment of low-voltage three-phase loads of distribution transformers in Taiwan over a period of time. , to ensure the power supply of users of different phases to the greatest extent, so that the voltage obtained by the user can be within the qualified range for normal use of electrical appliances. In practice, there will always be some random changes in the three-phase load in the station area, and various factors will cause the three-phase load to be unbalanced. For us who are more and more dependent on electric energy, the impact of voltage fluctuations It is also getting bigger and bigger, and the loss to the electrical appliance is also extremely obvious. At the same time, when the input voltage is very different from the rated voltage of the electrical appliance, it will also cause the electrical appliance to be unusable or the loss is high or even damaged.

The existing method is to use a voltage stabilizer to fine-tune the voltage, but the voltage adjustment range of the voltage stabilizer is limited, and the adjustment range is narrow. Overload burns, and the voltage stabilizer is generally composed of a voltage regulation circuit, a control circuit and a servo motor. The voltage stabilizer itself consumes energy and has low energy conversion efficiency.

Therefore, for some regions where the low-voltage three-phase voltage is extremely unstable, for different input voltages, the output can still be output at the same rated output voltage, and at the same time, the conversion range is wide and the energy conversion efficiency is high, which is more convenient and practical.

To this end, we propose a user transformer with wide range and multi-stage adjustable buck-boost.

SUMMARY OF THE INVENTION

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the present invention provides a user transformer with wide range and multi-gear adjustment and buck-boost. It is difficult to adjust the low and high voltage in a wide range, resulting in the problem that the electrical appliance cannot be used or the loss is high or even damaged. Through the simple structure combination, the invention can conveniently check the input voltage by setting the voltage display screen, and then switch the copper wire joints with different turns ratio through the commutation switch, and then conveniently adjust the higher and lower voltages to the rated output voltage, It is very practical to improve energy conversion and reduce losses.

(2) Technical solutions

To achieve the above purpose, the present invention is achieved through the following technical solutions:

A wide-range multi-gear adjustable and adjustable user transformer, including a protective casing, the inside of the protective casing is provided with a transformer self-coupling copper wire coil, and the transformer self-coupling copper wire coil includes a ring-shaped magnetic core, and the ring A pure copper winding is wound on the magnetic core, and the outer wall of the pure copper winding is provided with a plurality of copper wire connectors with different turns ratios and two copper wire lead-out output connectors, and the active ends of the copper wire connectors with different turns ratios All are connected with lead wires of copper wire joints, and the other ends of the lead wires of multiple copper wire joints are respectively connected to a plurality of different terminals of the same phase change switch. The phase change switch passes through the side wall of the protective casing and extends out of the protective chassis;

The protective casing is provided with two voltage input joints, and the protective casing is provided with two voltage output joints, wherein one voltage input joint is connected with the commutation switch, and the other copper wire joint lead wire is connected with one of them. The voltage output connectors are connected to each other, and the two ends of the voltage output connector are respectively connected to the two copper wire lead-out output connectors.

Further, the upper end of the protective casing is provided with a plurality of handles.

Further, the lower end of the protective casing is provided with a plurality of anti-skid wheels.

Further, convection cooling holes are opened on both side walls of the protective casing.

Further, a plurality of the copper wire joints with different turns ratios are connected to the pure copper winding through insulation coating.

Further, a voltage display screen is provided on the side wall of the protective casing, and the voltage display screen includes an input voltage connection contact and an output voltage connection contact, and the input voltage connection contact is connected in parallel on the two voltage input connectors, and the output voltage is connected in parallel. The voltage connection contacts are connected in parallel on the two voltage output terminals.

Further, the protective casing is provided with a transformer control switch, the transformer control switch is provided with a switch incoming terminal and a switch outgoing terminal, and the switch incoming terminal and the switch outgoing terminal are arranged on the line connecting the voltage input connector and the commutation switch. superior.

Further, the protective casing is provided with a ground protection terminal corresponding to the voltage output connector.

(3) Beneficial effects

The embodiment of the present invention provides a user transformer with wide-range and multi-stage adjustable and buck-boost. Has the following beneficial effects:

1. It can be adjusted for different voltages, and the adjustment range is wider, and at the same time, it will not cause overload use and improve work efficiency. By setting multiple copper wire connectors with different turns ratios, it is possible to adjust multiple different voltages, but at this time, multiple copper wire connectors with different turns ratios are connected to the commutation switch in a one-to-one correspondence manner. Therefore, due to the difference in the number of copper wire turns, the voltage range it handles is also different, and the voltage in the lower range and the higher range can be adjusted.

2. By setting the voltage display, the input voltage value can be easily and clearly seen, and it is convenient to adjust the voltage corresponding to the appropriate gear, so that the adjusted voltage is close to the appropriate gear, so that the energy conversion efficiency is high, and the energy consumption is relatively low. At the same time, user transformers with different rated powers can be made, and the rated power of the output can be seen, which is convenient for the corresponding electrical appliances.

Description of drawings

1 is a schematic diagram of the three-dimensional structure of the present invention;

2 is a three-dimensional schematic diagram of the structure of the transformer self-coupling copper wire coil of the present invention;

FIG. 3 is a schematic diagram of the structure circuit layout of the present invention.

In the figure: protective enclosure 1, commutation switch 2, transformer control switch 3, switch incoming terminal 3.1, switch outgoing terminal 3.2, transformer self-coupling copper wire coil 4, pure copper winding 4.1, annular magnetic core 4.2, different turns Digital ratio copper wire connector 4.3, insulation coating 4.4, copper wire connector lead wire 4.5, voltage input connector 5, voltage display screen 6, input voltage connection contact 6.1, output voltage connection contact 6.2, voltage output connector 7, handle 8. Convection cooling holes 9, anti-skid wheels 10.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to Figures 1-3, a wide-range multi-speed adjustable and adjustable user transformer includes a protective casing 1, and the interior of the protective casing 1 is provided with a transformer self-coupling copper wire coil 4, and the transformer self-coupling The copper wire coil 4 includes an annular magnetic core 4.2, and a pure copper winding 4.1 is wound on the annular magnetic core 4.2, so that the primary coil and the secondary coil are wound together to form an autotransformer, and the outer wall of the pure copper winding 4.1 is provided with A number of copper wire connectors with different turns ratio 4.3 and two copper wire lead-out output connectors.

And the active ends of the copper wire connectors 4.3 with different turns ratio are connected with the copper wire connector lead wires 4.5, and the other ends of the copper wire connector lead wires 4.5 are respectively connected to a plurality of different terminals of the same commutation switch 2. , the phase change switch 2 passes through the side wall of the protective casing 1 and extends out of the protective casing 1 .

The protective housing 1 is provided with two voltage input connectors 5, and the protective housing 1 is provided with two voltage output connectors 7, of which one voltage input connector 5 is connected to the commutation switch, and the other copper wire connector leads out. The line 4.5 is connected to one of the voltage output connectors 7, and the two ends of the voltage output connector 7 are respectively connected to the two copper wire lead output connectors.

According to the principle of the transformer, two or more coils are wound on a closed iron core. When a coil is connected to an AC power supply (that is, the primary coil), an alternating current flows through the coil, and this alternating current is generated in the iron core. In the alternating magnetic field, the alternating main magnetic flux generates its own induced electromotive force in the primary coil, and at the same time, the other coil (that is, the secondary coil) induces a mutual inductive electromotive force. By changing the relationship between the primary and secondary coil turns ratio to change the primary and secondary coil terminal voltage, to achieve voltage conversion, at this time by setting a number of different turns ratio copper wire joints 4.3, and then can achieve a number of different However, at this time, multiple copper wire connectors 4.3 with different turns ratios are connected to the commutation switch 2 in a one-to-one correspondence. Therefore, due to the difference in the number of copper wire turns, the processing voltage range is also Differently, the lower range as well as the higher range voltage can be adjusted.

The commutation switch 2 adopts the LW26 type commutation switch. This type of commutation switch 2 has 6 gears, and the 6 gears correspond to a number of different turns ratio copper wire joints 4.3. After confirming the input voltage, by turning The knob on the commutation switch 2 determines the copper wire with the corresponding turns ratio, so that the voltage range that the copper wire with this turns ratio can handle is close to the input voltage, and the input voltage is converted into the rated voltage. High conversion efficiency and low energy consumption.

In this embodiment, as shown in FIGS. 1 and 3 , the upper end of the protective casing 1 is provided with a plurality of handles 8 to facilitate carrying.

In this embodiment, as shown in FIGS. 1 and 3 , the lower end of the protective casing 1 is provided with a plurality of anti-skid wheels 10 to facilitate movement.

In this embodiment, as shown in FIG. 3 , convection heat dissipation holes 9 are formed on both side walls of the protective casing 1 to facilitate heat dissipation through the convection heat dissipation holes 9 .

In this embodiment, as shown in FIG. 2 , a plurality of the copper wire joints 4.3 with different turns ratios are connected to the pure copper winding 4.1 through the insulating coating 4.4, which can connect the copper wire joints 4.3 with different turns ratios to the two copper wire joints 4.3 with different turns ratios. The wire lead-out output connector is fixed.

In this embodiment, as shown in Figures 1 and 3, a voltage display screen 6 is provided on the side wall of the protective casing 1. The voltage display screen 6 includes an input voltage connection contact 6.1 and an output voltage connection contact 6.2. The input voltage The connection contact 6.1 is connected in parallel to the two voltage input connectors 5, and the output voltage connection contact 6.2 is connected in parallel to the two voltage output connectors 7. By setting the voltage display 6, the input voltage value can be easily seen, and according to the The input voltage value can be conveniently rotated by the commutation switch 2 to select a voltage value similar to the input voltage, and then the input voltage can be easily adjusted. At the same time, the output rated voltage can be seen through the voltage display 6.

In this embodiment, as shown in Figures 1 and 3, the protective casing 1 is provided with a transformer control switch 3, and the transformer control switch 3 is provided with a switch incoming terminal 3.1 and a switch outgoing terminal 3.2, and the switch incoming terminal 3.1 And the switch outlet terminal 3.2 is arranged on the line connecting the voltage input connector 5 and the commutation switch, and the input voltage can be disconnected through the transformer control switch 3, thereby stopping the operation.

In this embodiment, the protective casing 1 is provided with a grounding protection terminal corresponding to the voltage output connector 7 , which can protect the protective casing 1 from grounding and improve safety.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. A wide-range multi-stage adjustable and adjustable user transformer, comprising a protective casing, characterized in that: the inside of the protective casing is provided with a transformer self-coupling copper wire loop, and the transformer self-coupling copper wire loop includes Ring-shaped magnetic core, the ring-shaped magnetic core is wound with a pure copper winding, and the outer wall of the pure copper winding is provided with a plurality of copper wire connectors with different turns ratio and two copper wire lead-out output connectors, and a plurality of different turns ratio The active ends of the copper wire connectors are connected with the copper wire connector lead wires, and the other ends of the copper wire connector lead wires are respectively connected to a plurality of different terminals of the same phase change switch, and the phase change switch passes through the protective casing. side wall and extends out of the protective casing; The protective casing is provided with two voltage input joints, and the protective casing is provided with two voltage output joints, wherein one voltage input joint is connected with the commutation switch, and the other copper wire joint lead wire is connected with one of them. The voltage output connectors are connected to each other, and the two ends of the voltage output connector are respectively connected to the two copper wire lead-out output connectors. 2 . The user transformer with wide-range and multi-stage adjustable, buck-boost and voltage-adjustable according to claim 1 , wherein a plurality of handles are arranged on the upper end of the protective casing. 3 . 3 . The user transformer with wide-range and multi-speed adjustable, buck-boost, and voltage as claimed in claim 1 , wherein a plurality of anti-skid wheels are arranged on the lower end of the protective casing. 4 . 4 . The user transformer with wide-range and multi-step adjustable, adjustable, buck-boost, as claimed in claim 1 , characterized in that convective cooling holes are opened on both end side walls of the protective casing. 5 . 5. A wide-range and multi-stage adjustable user transformer that can be stepped up and down as claimed in claim 1, characterized in that: a plurality of the copper wire joints with different turns ratios are connected to the pure copper winding through insulation coating . 6. A wide-range and multi-level adjustable user transformer that can be stepped up and down as claimed in claim 1, wherein a voltage display screen is provided on the side wall of the protective casing, and the voltage display screen includes an input voltage connection. The contact point and the output voltage connection contact, the input voltage connection contact is connected in parallel on the two voltage input connectors, and the output voltage connection contact is connected in parallel on the two voltage output connectors. 7. The user transformer with wide-range and multi-stage adjustable adjustable voltage and voltage as claimed in claim 1, characterized in that: a transformer control switch is provided on the protective casing, and a switch incoming line is provided on the transformer control switch. The terminal and the switch outgoing terminal, the switch incoming terminal and the switch outgoing terminal are arranged on the line connecting the voltage input connector and the commutation switch. 8 . The user transformer with wide-range and multi-stage adjustable, buck-boost and buck-boost according to claim 1 , wherein the protective casing is provided with a grounding protection terminal corresponding to the voltage output connector. 9 .

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