Distribution transformer capable of automatically adjusting voltage

Abstract

The invention relates to the field of transformers, in particular to a distribution transformer capable of automatically adjusting voltage, which comprises a distribution transformer body, a driving box is mounted on one side of the distribution transformer body through an insulating mounting cylinder, an adjusting disc is rotatably mounted at the bottom of the driving box, and a plurality of transformation containers are arranged below the adjusting disc. Each voltage transformation container is connected with the first adjusting rod, the second adjusting rod and the third adjusting rod, one end of each adjusting rod is connected with a connecting rod, and one end of each connecting rod is in contact communication with a conductive contact block arranged on the inner wall of the voltage transformation adjusting cylinder through an excitation contact block. According to the invention, when the voltage sensing module detects that the voltage fluctuation range is relatively large, the distribution transformer body is disconnected, the electromagnet adsorbs the adjusting rod assembly, the adjusting rod of the corresponding circuit is adsorbed to move upwards, and at the moment, the excitation contact block is separated from the conductive contact block of the corresponding voltage circuit; and the driving motor drives the excitation contact block to rotate to the conductive contact block at the other voltage gear so as to be contacted and electrified.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a distribution transformer capable of automatically adjusting voltage. Background Art

[0002] A distribution transformer is a static electrical appliance in a power distribution system that is used to transform AC voltage and current according to the law of electromagnetic induction, thereby transmitting AC power. A distribution transformer is a device that converts an AC voltage (current) of a certain value into another or several voltages (currents) with the same frequency but different values. It is usually used to reduce the voltage of a high-voltage power grid to a voltage level suitable for home, commercial and industrial users.

[0003] At present, traditional distribution transformers are mostly adjusted manually with tap changers. Although they can achieve basic adjustment functions, in actual use, the traditional adjustment method is not only slow to find problems, but also the adjustment process is cumbersome. Therefore, there is an urgent need for a distribution transformer that can automatically adjust the voltage. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a distribution transformer with automatic voltage regulation.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A distribution transformer for automatically adjusting voltage comprises a distribution transformer body, a driving box is installed on one side of the distribution transformer body through an insulating mounting cylinder, an adjusting disk is rotatably installed on the bottom of the driving box, a plurality of transformer containers are arranged below the adjusting disk, each transformer container is respectively connected to an adjusting rod 1, an adjusting rod 2, and an adjusting rod 3, and a connecting rod is connected to one end of each adjusting rod, and one end of the connecting rod is in contact and communication with a conductive contact provided on the inner wall of the transformer adjusting cylinder through an excitation contact; A through groove is provided on one side of the inner wall of the transformer container, and slide grooves are provided on the upper and lower ends of the inner wall of the through groove. A connecting rod is slidably installed in the slide groove through a slider, an excitation contact block is installed on one end of the connecting rod, and a connecting rod is rotatably installed on the other end, and the other end of the connecting rod is rotatably installed on one side of the outer wall of the adjusting rod three; A spring is installed at one side of the slide groove, and the other end of the spring is connected to the slide block.

[0006] In addition, a preferred structure is that a transformer regulating cylinder is installed inside the insulating mounting cylinder, and a plurality of wire connection terminals are installed on one side of the outer wall of the transformer regulating cylinder, and the other end of the wire connection terminal extends into the interior of the transformer regulating cylinder and is connected to a conductive contact, and the circuit is connected when the conductive contact is squeezed into contact with the excitation contact.

[0007] In addition, a preferred structure is that a driving motor is installed on one side of the interior of the driving box, a voltage sensing module is connected to one side of the driving motor, and an output end of the driving motor extends out of the bottom wall of the driving box and is connected to an adjustment disk.

[0008] In addition, a preferred structure is that a plurality of annular adjustment grooves are opened on the bottom wall of the adjustment disk, and an electromagnet is installed on the inner wall of each annular adjustment groove, and the electromagnet and magnetic block one, magnetic block two, and magnetic block three form a magnetic attraction structure with each other.

[0009] In addition, a preferred structure is that a through hole is opened in the middle of the transformer container, an adjusting rod three is installed in the through hole, an adjusting rod two is sleeved and installed in the middle of the adjusting rod three, and an adjusting rod one is adjusted and installed in the middle of the adjusting rod two.

[0010] In addition, a preferred structure is that magnetic blocks 1, 2 and 3 are fixedly installed on the upper parts of the adjusting rods 1, 2 and 3 respectively, and an adjusting disk is provided above the magnetic blocks 1, 2 and 3.

[0011] In addition, a preferred structure is that the middle parts of the adjusting rods 1, 2 and 3 correspond to the through grooves opened in the middle of the strain container, and their outer walls are rotatably mounted with connecting rods, and the other end of the connecting rods is rotatably mounted on one end of the connecting rod.

[0012] In addition, a preferred structure is that an expansion groove is opened on one side of the interior of the pressure transformer container, and a connecting rod is movably installed in the expansion groove for limiting movement.

[0013] In addition, a preferred structure is that a through hole is opened at the bottom of the adjusting rod 1, a mounting base is inserted and installed in the through hole, and the mounting base is fixedly installed on the bottom wall of the transformer adjusting cylinder.

[0014] In addition, a preferred structure is that the voltage sensing module is electrically connected to the drive motor, the distribution transformer body, and the electromagnet.

[0015] The beneficial effects of the present invention are: In the present invention, when the voltage sensing module detects that the voltage fluctuation range is large, the distribution transformer body is disconnected and the electromagnet generates electromagnetic attraction, and adsorbs the corresponding adjustment rod assembly, and the adjustment rod of the corresponding circuit is adsorbed upward. At this time, the exciting contact block is separated from the conductive contact block of the corresponding voltage circuit, and under the rotation of the driving motor, the exciting contact block is rotated to the conductive contact block of another voltage position to contact and energize, thereby effectively realizing the automatic adjustment function, and the adjustment process is stable and problems are discovered quickly, effectively increasing the operating stability of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a distribution transformer with automatic voltage regulation proposed by the present invention; Figure 2 This is a schematic diagram of the installation structure of the voltage transformer and regulator tube proposed by the present invention; Figure 3 This is a schematic diagram of the overall structure of the voltage transformer and regulator tube proposed by the present invention; Figure 4 This is a schematic diagram of the external structure of the pressure transformer container proposed by the present invention; Figure 5 A schematic diagram of the connection structure of the adjusting rod proposed by the present invention; Figure 6 This is a schematic diagram of the connection structure between the regulating rod and the pressure-changing container proposed by the present invention; Figure 7 A schematic diagram of the structure of the present invention; Figure 8 This is a schematic diagram of the drive box connection structure proposed by the present invention.

[0017] In the figure: 1. distribution transformer body; 2. insulation installation cylinder; 3. drive box; 4. transformer adjustment cylinder; 5. wire connection terminal; 51. conductive contact block; 6. transformer container; 7. adjustment rod one; 71. magnetic block one; 8. adjustment rod two; 81. magnetic block two; 9. adjustment rod three; 91. magnetic block three; 10. excitation contact block; 11. connecting rod; 12. connecting rod; 13. mounting base; 14. spring; 15. slider; 16. slide groove; 17. expansion groove; 18. drive motor; 19. voltage sensor module; 20. adjustment disk; 21. electromagnet; 22. adjustment groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-8 A distribution transformer for automatically adjusting voltage comprises a distribution transformer body 1, a driving box 3 is installed on one side of the distribution transformer body 1 through an insulating mounting tube 2, an adjusting disk 20 is rotatably installed on the bottom of the driving box 3, and a plurality of transformer containers 6 are arranged below the adjusting disk 20, each transformer container 6 is respectively connected to an adjusting rod 1 7, an adjusting rod 2 8, and an adjusting rod 3 9, and a connecting rod 11 is connected to one end of each adjusting rod, and one end of the connecting rod 11 is in contact and communication with a conductive contact 51 arranged on the inner wall of the transformer adjusting tube 4 through an excitation contact 10; Furthermore, a through groove is provided on one side of the inner wall of the transformer container 6, and a slide groove 16 is provided on the upper and lower ends of the inner wall of the through groove. A connecting rod 11 is installed in the slide groove 16 through a slider 15 to limit the sliding movement. An excitation contact block 10 is installed on one end of the connecting rod 11, and a connecting rod 12 is rotatably installed on the other end. The other end of the connecting rod 12 is rotatably installed on one side of the outer wall of the adjusting rod 3 9; Furthermore, a spring 14 is installed at one side of the slide groove 16 , and the other end of the spring 14 is connected to the slider 15 . The reset and pressing function of the spring 14 provides a reset capability during the adjustment of the slider 15 .

[0020] Furthermore, a transformer regulating cylinder 4 is installed inside the insulating mounting cylinder 2, and a plurality of wire connection terminals 5 are installed on one side of the outer wall of the transformer regulating cylinder 4. The other end of the wire connection terminal 5 extends into the transformer regulating cylinder 4 and is connected to a conductive contact 51. When the conductive contact 51 is squeezed into contact with the excitation contact 10, the circuit is connected.

[0021] Furthermore, a driving motor 18 is installed on one side of the interior of the driving box 3, and a voltage sensing module 19 is connected to one side of the driving motor 18. The output end of the driving motor 18 extends out of the bottom wall of the driving box 3 and is connected to an adjusting disk 20. When the adjusting disk 20 is energized, electromagnetic suction is generated, and the adjusting rod at the bottom is adsorbed and adjusted, thereby completing an efficient and automatic adjustment operation.

[0022] Furthermore, a plurality of annular adjustment grooves 22 are formed on the bottom wall of the adjustment disk 20, and an electromagnet 21 is installed on the inner wall of each annular adjustment groove 22. The electromagnet 21 and the magnetic block 1 71, the magnetic block 2 81, and the magnetic block 3 91 form a magnetic attraction structure with each other.

[0023] Furthermore, a through hole is opened in the middle of the transformer container 6, and an adjusting rod three 9 is installed in the through hole. An adjusting rod two 8 is installed in the middle of the adjusting rod three 9, and an adjusting rod one 7 is installed in the middle of the adjusting rod two 8 for adjustment. The adjusting rods are connected to each other through the socket connection, which effectively improves the integrity of the equipment and enables independent adjustment of different adjusting rods.

[0024] Furthermore, magnetic blocks 1 71 , 2 81 , and 3 91 are fixedly installed on the upper parts of adjusting rod 1 7 , adjusting rod 2 8 , and adjusting rod 3 9 , respectively, and an adjusting disk 20 is provided above magnetic blocks 1 71 , 2 81 , and 3 91 .

[0025] Furthermore, the middle parts of the adjusting rod 1 7 , the adjusting rod 2 8 , and the adjusting rod 3 9 correspond to the through groove positions opened in the middle part of the strain container 6 , and the outer walls thereof are rotatably mounted with connecting rods 12 , and the other end of the connecting rod 12 is rotatably mounted on one end of the connecting rod 11 .

[0026] Furthermore, an expansion groove 17 is opened on one side of the inner part of the pressure transformer container 6, and a connecting rod 12 is installed in the expansion groove 17 in a limited and movable manner. The expansion groove 17 effectively increases the moving space of the connecting rod 12 and ensures the stability of the connecting rod 12 during the rotation process.

[0027] Furthermore, a through hole is provided at the bottom of the regulating rod 7, and a mounting base 13 is inserted into the through hole, and the mounting base 13 is fixedly mounted on the bottom wall of the transformer regulating cylinder 4.

[0028] Furthermore, the voltage sensing module 19 is electrically connected to the drive motor 18, the distribution transformer body 1, and the electromagnet 21, and the distribution transformer body 1 is detected by the voltage sensing module 19, and the drive motor 18 is controlled and connected under voltage fluctuations.

[0029] In this embodiment, during the operation of the distribution transformer body 1, the voltage sensing module 19 monitors the voltage of the distribution transformer body 1, and when it is detected that the voltage fluctuation range is large, the voltage sensing module 19 controls the distribution transformer body 1 to open the circuit, cuts off the corresponding current, and energizes the electromagnet 21 set at the bottom of the control adjustment disk 20 to generate electromagnetic attraction. At this time, according to the corresponding circuit, the electromagnet 21 adsorbs the adjustment rod connected in the corresponding line, such as the adjustment rod 39, upward, and the adjustment rod 39 drives the transformer through the connecting rod 12 during the upward movement. The exciting contact block 10 set on one side of the pressure container 6 moves and contracts. At this time, the exciting contact block 10 is disconnected from the guide contact block 51 of the A line, and then the driving motor 18 drives the bottom adjustment disk 20 to rotate. The adjustment disk 20 drives the adsorbed adjustment rod 3 9 to rotate axially. The adjustment rod 3 9 rotates in the transformer container 6 and stops when it rotates to the B line, and the electromagnet 21 is controlled to be powered off. At this time, the adjustment rod 3 9 moves downward and is ejected and reset by the spring 14 set inside, and the B line (different from the A line voltage) is pressed, thereby completing the circuit connection. Among them, in actual use, a magnetic block three 91 is provided on the top of the adjusting rod three 9 to satisfy the connection function. At the same time, when the adjusting rod three 9 is in the upward process, the connecting rod 12 moves upward and pulls the connecting rod 11 on one side. The connecting rod 11 slides in the slide groove 16 set inside the transformer container 6 through the slider 15, and squeezes the spring 14, thereby enabling the trigger contact block 10 to contract.

[0030] In actual use, a plurality of guide connection terminals 5 are provided on the outside of the voltage transformer regulating tube 4 to represent different voltage circuits, and a voltage transformer container 6 and an excitation contact block 10 are provided at one place of each group of guide connection terminals 5 to meet the regulation.

[0031] Among them, in actual use, the adjusting rod 1 7, the adjusting rod 2 8, and the adjusting rod 3 9 are interconnected and interfere with each other, and the adjusting rod 1 7, the adjusting rod 2 8, and the adjusting rod 3 9 are respectively connected to different transformer containers 6. During the adjustment process, only the specified adjusting rod needs to be adjusted to complete the separate adjustment function of the specified line.

[0032] Among them, it is worth noting that during the regulation process, the distribution transformer body 1 is disconnected to ensure the stability of voltage regulation.

[0033] It is worth noting that, during the circuit-breaking adjustment process of the distribution transformer body 1 , the electromagnetic field generated by the electromagnet 21 is not sufficient to affect the normal operation of the distribution transformer body 1 .

[0034] In the present invention, when the voltage sensing module 19 detects that the voltage fluctuation range is large, the distribution transformer body 1 is disconnected and the electromagnet 21 generates electromagnetic attraction, and adsorbs the corresponding adjustment rod assembly, and the adjustment rod of the corresponding line is adsorbed upward. At this time, the excitation contact 10 is separated from the conductive contact 51 of the corresponding voltage line, and under the rotation of the drive motor 18, the excitation contact 10 is rotated to the conductive contact 51 of another voltage position to contact and energize, thereby effectively realizing the automatic adjustment function, and the adjustment process is stable and problems are discovered quickly, effectively increasing the operating stability of the transformer.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A distribution transformer with automatic voltage regulation, comprising a distribution transformer body (1), characterized in that: A drive box (3) is installed on one side of the distribution transformer body (1) via an insulating mounting cylinder (2); an adjusting disk (20) is rotatably installed at the bottom of the drive box (3); a plurality of transformer containers (6) are provided below the adjusting disk (20); each transformer container (6) is connected to an adjusting rod 1 (7), an adjusting rod 2 (8), and an adjusting rod 3 (9), respectively; and a connecting rod (11) is connected to one end of each adjusting rod; one end of the connecting rod (11) is in contact and communication with a conductive contact (51) provided on the inner wall of the transformer adjusting cylinder (4) via an excitation contact (10); A through groove is provided on one side of the inner wall of the transformer container (6), and slide grooves (16) are provided on the upper and lower ends of the inner wall of the through groove. A connecting rod (11) is slidably mounted in the slide groove (16) via a slider (15) to limit position. An excitation contact block (10) is mounted on one end of the connecting rod (11), and a connecting rod (12) is rotatably mounted on the other end. The other end of the connecting rod (12) is rotatably mounted on one side of the outer wall of the adjusting rod (9). A spring (14) is installed on one side of the interior of the slide groove (16), and the other end of the spring (14) is connected to the slide block (15).

2. A distribution transformer with automatic voltage regulation according to claim 1, characterized in that: A transformer-adjusting cylinder (4) is installed inside the insulating installation cylinder (2), and a plurality of wire connection terminals (5) are installed on one side of the outer wall of the transformer-adjusting cylinder (4). The other ends of the wire connection terminals (5) extend into the transformer-adjusting cylinder (4) and are connected to conductive contacts (51). When the conductive contacts (51) are pressed into contact with the excitation contacts (10), the circuit is connected.

3. A distribution transformer with automatic voltage regulation according to claim 1, characterized in that: A drive motor (18) is installed on one side of the interior of the drive box (3), a voltage sensor module (19) is connected to one side of the drive motor (18), and an output end of the drive motor (18) extends out of the bottom wall of the drive box (3) and is connected to an adjustment disk (20).

4. A distribution transformer with automatic voltage regulation according to claim 3, characterized in that: The bottom wall of the adjustment disk (20) is provided with a plurality of annular adjustment grooves (22), and an electromagnet (21) is installed on the inner wall of each annular adjustment groove (22). The electromagnet (21) and magnetic block 1 (71), magnetic block 2 (81), and magnetic block 3 (91) form a magnetic attraction structure with each other.

5. The distribution transformer with automatic voltage regulation according to claim 1, characterized in that: A through hole is provided in the middle of the transformer container (6), an adjusting rod three (9) is installed in the through hole, an adjusting rod two (8) is sleeved and installed in the middle of the adjusting rod three (9), and an adjusting rod one (7) is adjustably installed in the middle of the adjusting rod two (8).

6. A distribution transformer with automatic voltage regulation according to claim 5, characterized in that: A magnetic block 1 (71), a magnetic block 2 (81), and a magnetic block 3 (91) are fixedly mounted on the upper parts of the adjusting rod 1 (7), the adjusting rod 2 (8), and the adjusting rod 3 (9), respectively. An adjusting disk (20) is arranged above the magnetic block 1 (71), the magnetic block 2 (81), and the magnetic block 3 (91).

7. The distribution transformer with automatic voltage regulation according to claim 1, characterized in that: The middle parts of the adjusting rod 1 (7), the adjusting rod 2 (8) and the adjusting rod 3 (9) correspond to the through slots opened in the middle of the strain container (6), and the outer walls thereof are all rotatably mounted with connecting rods (12), and the other ends of the connecting rods (12) are rotatably mounted on one end of the connecting rod (11).

8. A distribution transformer with automatic voltage regulation according to claim 7, characterized in that: An expansion groove (17) is provided on one side of the interior of the pressure-changing container (6), and a connecting rod (12) is movably mounted in the expansion groove (17) in a limited manner.

9. The distribution transformer with automatic voltage regulation according to claim 1, characterized in that: A through hole is provided at the bottom of the regulating rod 1 (7), and a mounting base (13) is inserted into the through hole. The mounting base (13) is fixedly mounted on the bottom wall of the voltage transformer regulating cylinder (4).

10. The distribution transformer with automatic voltage regulation according to claim 3, characterized in that: The voltage sensing module (19) is electrically connected to the drive motor (18), the distribution transformer body (1), and the electromagnet (21).

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