An electronic transformer with an oil replenishment structure

Abstract

This invention belongs to the technical field of oil-immersed transformers, specifically an electronic transformer with an oil replenishment structure. Addressing the problem that existing electronic transformers require manual control for oil replenishment, the following solution is proposed: A housing is included, with a support fixedly connected to the outside of the housing. An oil conservator is mounted on the support, and a circular hole is opened on the upper side of the housing. A discharge pipe is fixedly connected to the circular hole, and a receiving box is fixedly connected to the outside of the discharge pipe. An oil storage cylinder is fixedly connected to the bottom inner wall of the receiving box, and an automatic oil replenishment module and an oil quantity control module are installed inside the oil storage cylinder. An oil delivery conduit is provided on the oil conservator. This invention discloses an electronic transformer with an oil replenishment structure that enables automatic replenishment of transformer oil within the housing, eliminating manual operation and making the oil replenishment operation more precise and timely, ensuring that the transformer's functionality is not affected.

Description

Technical Field

[0001] This invention relates to the field of oil-immersed transformer technology, and more particularly to an electronic transformer with an oil replenishment structure. Background Technology

[0002] A transformer consists of an iron core and coils. The coils have two or more windings. The winding connected to the power source is called the primary coil, and the remaining windings are called secondary coils. It can transform AC voltage, current, and impedance. A simple iron-core transformer consists of an iron core made of soft magnetic material and two coils with different numbers of turns wound around the iron core. The function of the iron core is to strengthen the magnetic coupling between the two coils. In order to reduce eddy current and hysteresis losses in the iron core, the iron core is made of laminated varnished silicon steel sheets. There is no electrical connection between the two coils, and the coils are wound with insulated copper wire.

[0003] In existing electronic transformers, the transformer oil inside often needs to be replenished manually after it is consumed. However, manual replenishment of transformer oil has many drawbacks, such as the inability to accurately control the amount of oil added and the inability to replenish the oil in a timely manner, which in turn affects the operation of the transformer. Summary of the Invention

[0004] This invention discloses an electronic transformer with an oil replenishment structure, aiming to solve the technical problem in the prior art that existing electronic transformers require manual control of oil replenishment.

[0005] This invention proposes an electronic transformer with an oil replenishment structure, comprising a housing, a bracket fixedly connected to the outside of the housing, an oil conservator mounted on the bracket, a circular hole on the upper side of the housing, a discharge pipe fixedly connected to the circular hole, a receiving box fixedly connected to the outside of the discharge pipe, an oil storage cylinder fixedly connected to the bottom inner wall of the receiving box, an automatic oil replenishment module and an oil quantity control module installed in the oil storage cylinder, an oil delivery conduit mounted on the oil conservator, the end of the oil delivery conduit away from the oil conservator passing through the upper side of the receiving box and entering the oil storage cylinder, an oil pump fixedly connected to the upper side of the receiving box, and the output end of the oil pump connected to the oil delivery conduit via a pipe;

[0006] The automatic oil replenishment module includes an oil plug, the outside of which is inserted into the inner wall of the discharge pipe, and a connecting rod is fixedly connected to the upper side of the oil plug. A thin rope is provided above the connecting rod, and a float is fixedly connected to the end of the thin rope away from the connecting rod.

[0007] The oil quantity control module includes a locking ring, and a rack is fixedly connected to the inner wall of the locking ring.

[0008] The device is equipped with a housing, support, oil tank, container, oil delivery pipe, oil pump, automatic oil replenishment module, oil quantity control module, oil storage cylinder, and discharge pipe. The automatic oil replenishment module enables the device to automatically replenish the transformer oil in the housing, thereby eliminating manual operation and making the transformer oil replenishment operation more accurate and timely, ensuring that the transformer's function is not affected.

[0009] In a preferred embodiment, the discharge pipe is externally provided with a mounting frame, the bottom of which is fixedly connected to the inner wall of the bottom of the receiving box. The mounting frame has multiple circumferentially equidistant oil guide ports, and the outer side of the oil plug is slidably connected to the inner wall of the mounting frame. An installation cylinder is fixedly connected to the upper side of the mounting frame. The installation cylinder has a slit, and a guide frame is fixedly connected to the inner wall of the slit. The inner wall of the guide frame is slidably connected to the outer side of the connecting rod, and a stabilizing plate is fixedly connected to the outer side of the guide frame. The outer side of the stabilizing plate is fixedly connected to the inner wall of the installation cylinder. A support frame is fixedly connected to the upper side of the installation cylinder, and guide rollers are movably connected to both ends of the support frame away from the installation cylinder. The outer side of the thin rope contacts the outer sides of both guide rollers. The inner wall of the installation cylinder has two symmetrical grooves, and the same floating box is slidably connected to both grooves. An inclined plate is movably connected to the side of the floating box near the guide frame, and the inclined plate is away from the floating box. A U-shaped frame is fixedly connected to one side of the guide frame, and a stopper is fixedly connected to the upper side of the U-shaped frame. Two symmetrical circular openings are opened on the outside of the guide frame. The inner walls of the two circular openings are movably connected to the inner wall of the U-shaped frame. A stopper is fixedly connected to the side of the connecting rod near the float box. The bottom of the stopper contacts the outside of the stopper. The stopper is located above the stopper. A connecting plate is fixedly connected to the upper side of the connecting rod. A rectangular opening is opened on the connecting plate. A pull rod is installed in the rectangular opening. The outside of the pull rod is snapped into the outside of the connecting plate. A slot is opened on the upper side of the pull rod. An adjusting bolt is rotatably connected to the inner wall of the slot through an external thread. The upper side of the adjusting bolt is movably connected to the end of the thin rope away from the float. Small holes are opened on the bottom inner wall of the container and the upper side of the container. The same isolation tube is fixedly connected to the inner wall of the two small holes. One end of the thin rope connected to the float passes through the isolation tube and enters the container. A counterweight is fixedly connected to the bottom of the float.

[0010] By incorporating an automatic oil replenishment module, which utilizes a floating box and oil plug, the device can automatically cut off the continued supply of oil to the tank after fully replenishing the transformer oil in the tank based on changes in the liquid level. This achieves quantitative replenishment and avoids excessive replenishment of the transformer oil in the tank.

[0011] In a preferred embodiment, a fixing plate is fixedly connected to the outside of the pull rod, the fixing plate is located above the connecting plate, the upper side of the fixing plate is slidably connected to the bottom of the locking ring, a guide buckle is slidably connected to the outside of the locking ring, the bottom of the guide buckle is fixedly connected to the upper side of the fixing plate, and a toothed ring is provided on the outside of the adjusting bolt; the toothed ring meshes with a rack, a spring is fixedly connected to the side of the guide buckle away from the toothed ring, and the end of the spring away from the guide buckle is fixedly connected to the inner wall of the locking ring; a vertical rod is fixedly connected to the bottom inner wall of the receiving box, a float is slidably connected to the outside of the vertical rod, a contact is slidably connected to the outside of the vertical rod, the bottom of the contact is fixedly connected to the outside of the float, and a threaded groove is opened on the outside of the vertical rod, a nut is rotatably connected to the outside of the threaded groove through an external thread; a limit switch is slidably connected to the outside of the vertical rod, the limit switch is located above the contact, and the upper side of the limit switch is fixedly connected to the bottom of the nut.

[0012] By incorporating an oil level control module, the module utilizes a rack and pinion to ensure that the adjusting bolt remains stably in position after adjustment. This guarantees a stable final oil level in the tank during oil replenishment. Adjustable limit switches and contacts allow the device to control the oil level in the reservoir, thereby controlling the amount of oil added to the tank in a single replenishment. This enables the device to quickly and conveniently control the amount of oil replenished.

[0013] As can be seen from the above, the electronic transformer with an oil replenishment structure provided by the present invention can automatically replenish the transformer oil in the tank, thereby eliminating manual operation, making the oil replenishment operation of the transformer more accurate and timely, and ensuring that the function of the transformer is not affected. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an electronic transformer with an oil replenishment structure proposed in this invention;

[0015] Figure 2 This is a cross-sectional structural schematic diagram of an electronic transformer with an oil replenishment structure proposed in this invention;

[0016] Figure 3 This is a schematic diagram of an automatic oil replenishment module for an electronic transformer with an oil replenishment structure proposed in this invention.

[0017] Figure 4 This is a schematic diagram of the mounting cylinder structure of an electronic transformer with an oil replenishment structure proposed in this invention;

[0018] Figure 5 This is a schematic diagram of the U-shaped frame structure of an electronic transformer with an oil replenishment structure proposed in this invention;

[0019] Figure 6This is a schematic diagram of the oil quantity control module of an electronic transformer with an oil replenishment structure proposed in this invention.

[0020] Figure 7 This is a schematic diagram of the vertical rod structure of an electronic transformer with an oil replenishment structure proposed in this invention.

[0021] In the diagram: 1. Box body; 2. Bracket; 3. Oil tank; 4. Container box; 5. Oil delivery pipe; 6. Oil pump; 7. Automatic oil replenishment module; 701. Mounting frame; 702. Isolation pipe; 703. Thin rope; 704. Float 1; 705. Counterweight; 706. Oil guide port; 707. Mounting cylinder; 708. Guide frame; 709. Stabilizing plate; 710. Connecting rod; 711. Oil plug; 712. Support frame; 713. Guide roller; 714. Connecting plate; 715. Rectangular opening; 71 6. Pull rod; 717. Adjusting bolt; 718. U-shaped frame; 719. Inclined plate; 720. Floating box; 721. Stopper; 722. Stop block; 8. Oil quantity control module; 801. Fixing plate; 802. Locking ring; 803. Guide buckle; 804. Spring; 805. Gear ring; 806. Rack; 807. Vertical rod; 808. Float II; 809. Contact element; 810. Threaded groove; 811. Nut; 812. Limit switch; 9. Oil reservoir; 10. Discharge pipe. Detailed Implementation

[0022] The technical solutions 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 are only some embodiments of the present invention, and not all embodiments.

[0023] The electronic transformer with an oil replenishment structure disclosed in this invention is mainly applied to scenarios where existing electronic transformers require manual control of oil replenishment.

[0024] Reference Figure 1-7 An electronic transformer with an oil replenishment structure includes a housing 1. A bracket 2 is bolted to the outside of the housing 1. An oil conservator 3 is installed on the bracket 2. A circular hole is opened on the upper side of the housing 1. A discharge pipe 10 is bolted to the circular hole. A receiving box 4 is bolted to the outside of the discharge pipe 10. An oil storage cylinder 9 is bolted to the bottom inner wall of the receiving box 4. An automatic oil replenishment module 7 and an oil quantity control module 8 are installed in the oil storage cylinder 9. An oil delivery pipe 5 is installed on the oil conservator 3. The end of the oil delivery pipe 5 away from the oil conservator 3 passes through the upper side of the receiving box 4 and enters the oil storage cylinder 9. An oil pump 6 is bolted to the upper side of the receiving box 4. The output end of the oil pump 6 is connected to the oil delivery pipe 5 through a pipe.

[0025] The automatic oil replenishment module 7 includes an oil plug 711. The outside of the oil plug 711 is inserted into the inner wall of the discharge pipe 10, and a connecting rod 710 is bolted to the upper side of the oil plug 711. A thin rope 703 is provided above the connecting rod 710, and a float 704 is bolted to the end of the thin rope 703 away from the connecting rod 710.

[0026] The oil quantity control module 8 includes a locking ring 802, and the inner wall of the locking ring 802 is connected to a rack 806 by bolts.

[0027] Specifically, after the transformer oil in the housing 1 is consumed to a certain extent, the oil level drops, making it impossible for the float 704 connected to the counterweight 705 to float. This causes the counterweight 705 to pull the thin rope 703, tightening it and triggering the automatic oil replenishment module 7 to activate the oil replenishment mechanism. The transformer oil in the storage cylinder 9 is then transported into the housing 1 through the discharge pipe 10. The oil pump 6 is activated, pumping oil from the oil conservator 3 into the storage cylinder 9, where the oil is stored. The oil quantity control module 8 is used to set the amount of oil replenished, thereby controlling the amount of oil transported into the housing 1 and storage cylinder 9 each time. The device utilizes the automatic oil replenishment module 7 to automatically replenish the transformer oil in the housing 1, eliminating the need for manual operation and making the transformer oil replenishment operation more accurate and timely, ensuring that the transformer's functionality is not affected.

[0028] Reference Figure 3 , Figure 4 and Figure 5In a preferred embodiment, a mounting frame 701 is provided on the outside of the discharge pipe 10. The bottom of the mounting frame 701 is bolted to the inner wall of the bottom of the receiving box 4. Multiple circumferentially distributed oil guide ports 706 are provided on the mounting frame 701, and the outside of the oil plug 711 is slidably connected to the inner wall of the mounting frame 701. An installation cylinder 707 is bolted to the upper side of the mounting frame 701. A notch is provided on the installation cylinder 707, and a guide frame 708 is bolted to the inner wall of the notch. The inner wall of the guide frame 708 is slidably connected to the outside of the connecting rod 710, and the outside of the guide frame 708 is bolted to... A stabilizing plate 709 is bolted to the inner wall of the mounting cylinder 707. A support frame 712 is bolted to the upper side of the mounting cylinder 707. Both ends of the support frame 712 away from the mounting cylinder 707 are rotatably connected to guide rollers 713 via bearings. The outer side of the thin rope 703 contacts the outer sides of both guide rollers 713. Two symmetrical grooves are formed on the inner wall of the mounting cylinder 707. A floating box 720 is slidably connected within the two grooves. An inclined plate 719 is rotatably connected to the side of the floating box 720 near the guide frame 708 via bearings, and the inclined plate 719 is located away from the floating box 720. A U-shaped frame 718 is bolted to one side, and a stopper 721 is bolted to the upper side of the U-shaped frame 718. Two symmetrical circular openings are formed on the outside of the guide frame 708. The inner walls of both openings are rotatably connected to the inner wall of the U-shaped frame 718 via bearings. A stopper 722 is bolted to the side of the connecting rod 710 near the floating box 720. The bottom of the stopper 722 contacts the outside of the stopper 721, and the stopper 722 is located above the stopper 721. A connecting plate 714 is bolted to the upper side of the connecting rod 710. A rectangular opening 715 is formed on the connecting plate 714, and a [missing information - likely a design feature] is provided within the rectangular opening 715. A pull rod 716 is provided, and the outside of the pull rod 716 is snapped into the outside of the connecting plate 714. A slot is provided on the upper side of the pull rod 716, and an adjusting bolt 717 is rotatably connected to the inner wall of the slot through an external thread. The upper side of the adjusting bolt 717 is rotatably connected to the end of the thin rope 703 away from the float 704 through a bearing. The bottom inner wall of the housing 4 and the upper side of the housing 1 are both provided with small holes. The inner walls of the two small holes are connected to the same isolation tube 702 by bolts. One end of the thin rope 703 connected to the float 704 passes through the isolation tube 702 and enters the housing 1. The bottom of the float 704 is connected to a counterweight 705 by bolts.

[0029] Specifically, after the transformer oil in the housing 1 is consumed to a certain extent, the oil level drops, making it impossible for the float 704 connected to the counterweight 705 to float. This causes the counterweight 705 to pull the thin rope 703 taut. Under the pull of the counterweight 705's gravity, the adjusting bolt 717 connected to the thin rope 703 pulls the pull rod 716, causing the connecting plate 714 to drive the connecting rod 710 to rise on the guide frame 708. This causes the oil plug 711 connected to the connecting rod 710 to be pulled out of the discharge pipe 10. The oil in the oil storage cylinder 9 flows into the discharge pipe 10 through the oil guide port 706 and finally enters the... When the oil is placed into the housing 1, the stop 722 on the lifting connecting rod 710 will push open the stop 721 on the U-shaped frame 718 and reach above the stop 721. As the oil level in the oil reservoir 9 drops rapidly, the floating box 720 floating in the oil will also drop, causing the floating box 720 to drive the U-shaped frame 718 connected to the inclined plate 719 to rotate. This will release the stop 721 from limiting the stop 722, causing the connecting rod 710 to drive the oil plug 711 to drop. The oil plug 711 will then block the drain pipe 10 again, and the oil in the oil reservoir 9 will no longer flow into the housing 1.

[0030] In specific application scenarios, the automatic oil replenishment module 7 is mainly applicable to the automatic oil replenishment link in the automatic oil replenishment process. That is, the automatic oil replenishment module 7 uses the floating box 720 and the oil plug 711 to enable the device to automatically cut off the continued supply of oil to the tank 1 by the change of liquid level after fully replenishing the transformer oil in the tank 1, thereby realizing quantitative addition and avoiding excessive replenishment of transformer oil in the tank 1.

[0031] Reference Figure 6 and Figure 7In a preferred embodiment, a fixing plate 801 is bolted to the outside of the pull rod 716. The fixing plate 801 is located above the connecting plate 714. The upper side of the fixing plate 801 is slidably connected to the bottom of the locking ring 802. A guide buckle 803 is slidably connected to the outside of the locking ring 802. The bottom of the guide buckle 803 is bolted to the upper side of the fixing plate 801. A toothed ring 805 is provided on the outside of the adjusting bolt 717. The toothed ring 805 meshes with the rack 806. A spring 804 is bolted to the side of the guide buckle 803 away from the toothed ring 805. The end of the spring 804 away from the guide buckle 803 is connected to the locking ring 802. The inner wall of the container 4 is connected by bolts; the bottom inner wall of the container 4 is connected by bolts to a vertical rod 807, a float 808 is slidably connected to the outside of the vertical rod 807, a contact 809 is slidably connected to the outside of the vertical rod 807, the bottom of the contact 809 is connected to the outside of the float 808 by bolts, and a threaded groove 810 is opened on the outside of the vertical rod 807, and a nut 811 is rotatably connected to the outside of the threaded groove 810 by external threads; a limit switch 812 is slidably connected to the outside of the vertical rod 807, the limit switch 812 is located above the contact 809, and the upper side of the limit switch 812 is connected to the bottom of the nut 811 by bolts.

[0032] Specifically, when it is necessary to control the amount of oil replenished to the transformer in tank 1 and oil reservoir 9, the locking ring 802 is pushed against the elastic force of spring 804. The locking ring 802 slides on the fixed plate 801 towards the adjusting bolt 717, thereby releasing the rack 806 from locking the gear ring 805. The adjusting bolt 717 is rotated, moving it out of the pull rod 716 by a certain distance. This causes the counterweight 705 in tank 1 to drive the float 704 to descend a certain distance in tank 1. The locking ring 802 is released, and under the elastic force of spring 804, the locking ring 802 returns to its original position and the rack 806 locks the gear ring 805. The adjusting bolt 717 stops rotating. When the oil level in oil reservoir 9 drops, the float 808 drives the contact 809 to descend. When the contact 809 is no longer in contact with the limit switch 812, the oil pump 6 will start and slowly inject oil from the oil conservator 3 into the oil storage cylinder 9 through the oil delivery pipe 5. Rotating the nut 811 causes the nut 811 to move up and down on the threaded groove 810, thereby adjusting the height of the limit switch 812 on the vertical rod 807. After the oil plug 711 blocks the discharge pipe 10, preventing the oil storage cylinder 9 from injecting oil into the tank 1, the oil level in the oil storage cylinder 9 gradually rises as the oil delivery pipe 5 continues to inject oil into the oil storage cylinder 9, causing the float 808 to float upwards. After the contact 809 contacts the limit switch 812, the limit switch 812 sends a signal to the receiver on the oil pump 6, causing the oil pump 6 to shut down and the oil delivery pipe 5 to stop injecting oil into the oil storage cylinder 9.

[0033] In specific application scenarios, the oil quantity control module 8 is mainly used in the oil quantity control process. That is, the oil quantity control module 8 uses the rack 806 and the gear ring 805 to make the adjusting plug 717 stably maintain its position after adjustment, thereby ensuring the stability of the final oil level in the tank 1 when the tank 1 is replenished. The adjustable limit switch 812 and the contact 809 enable the device to control the oil quantity in the oil storage cylinder 9, and thus control the amount of oil replenished into the tank 1 in a single replenishment, so that the device can quickly and conveniently control the amount of oil replenished.

[0034] Working principle: After the transformer oil in the tank 1 is consumed to a certain extent, the oil level drops, making it impossible for the float 704 connected to the counterweight 705 to float. This causes the counterweight 705 to pull the thin rope 703 taut. Under the pull of the counterweight 705's gravity, the adjusting bolt 717 connected to the thin rope 703 pulls the pull rod 716, causing the connecting plate 714 to drive the connecting rod 710 to rise on the guide frame 708. This causes the oil plug 711 connected to the connecting rod 710 to be pulled out from the discharge pipe 10. The oil in the oil storage cylinder 9 flows into the discharge pipe 10 through the oil guide port 706 and finally enters the tank 1. At this time, the oil plug 711 on the raised connecting rod 710... The stop block 722 pushes open the stop member 721 on the U-shaped frame 718, reaching above the stop member 721. As the oil level in the oil reservoir 9 drops rapidly, the floating box 720 floating in the oil also drops, causing the floating box 720 to rotate, which in turn drives the U-shaped frame 718 connected to the inclined plate 719. This releases the stop member 721 from limiting the stop block 722, causing the connecting rod 710 to lower the oil plug 711. The oil plug 711 then re-blocks the drain pipe 10, preventing oil from flowing into the tank 1 from the oil reservoir 9. When it is necessary to control the amount of oil replenished to the transformer in the tank 1 and oil reservoir 9, the locking ring 802 is pushed against the spring force of the spring 804, locking... The fixed ring 802 slides on the fixed plate 801 toward the adjusting bolt 717, thereby releasing the rack 806 from locking the gear ring 805. The adjusting bolt 717 is rotated, moving it out of the pull rod 716, causing the counterweight 705 in the housing 1 to lower the float 704 a certain distance within the housing 1. The locking ring 802 is released, and under the force of the spring 804, it resets and locks the rack 806 back into position, preventing the adjusting bolt 717 from rotating. As the oil level in the oil reservoir 9 decreases, the float 808 lowers the contact element 809, causing it to disengage from the limit switch 812. The oil pump 6 then... The oil is started and slowly injected into the oil storage cylinder 9 through the oil delivery pipe 5. The nut 811 is rotated and moves up and down on the threaded groove 810, thereby adjusting the height of the limit switch 812 on the vertical rod 807. After the oil plug 711 blocks the discharge pipe 10 and the oil storage cylinder 9 stops injecting oil into the tank 1, the oil level in the oil storage cylinder 9 gradually rises as the oil delivery pipe 5 continues to inject oil into the oil storage cylinder 9, thereby causing the float 808 to float upward. After the contact 809 contacts the limit switch 812, the limit switch 812 sends a signal to the receiver on the oil pump 6, causing the oil pump 6 to shut down and the oil delivery pipe 5 to stop injecting oil into the oil storage cylinder 9.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An electronic transformer with an oil replenishment structure, comprising a housing (1), characterized in that, The box (1) is fixedly connected to the outside of the bracket (2), the bracket (2) is provided with an oil pillow (3), and the upper side of the box (1) is provided with a round hole, the round hole is fixedly connected with a discharge pipe (10), the outside of the discharge pipe (10) is fixedly connected with a container (4), the bottom inner wall of the container (4) is fixedly connected with an oil storage cylinder (9), the oil storage cylinder (9) is provided with an automatic oil replenishment module (7) and an oil quantity control module (8), the oil pillow (3) is provided with an oil delivery pipe (5), the end of the oil delivery pipe (5) away from the oil pillow (3) passes through the upper side of the container (4) and enters the oil storage cylinder (9), the upper side of the container (4) is fixedly connected with an oil pump (6), the output end of the oil pump (6) is connected to the oil delivery pipe (5) through a pipe; The automatic oil replenishment module (7) includes an oil plug (711), the outside of which is inserted into the inner wall of the discharge pipe (10), and a connecting rod (710) is fixedly connected to the upper side of the oil plug (711). A thin rope (703) is provided above the connecting rod (710), and a float (704) is fixedly connected to the end of the thin rope (703) away from the connecting rod (710). A connecting plate (714) is fixedly connected to the upper side of the connecting rod (710), and a rectangular opening (715) is provided on the connecting plate (714). A pull rod (716) is provided inside the rectangular opening (715), and the outside of the pull rod (716) is snapped into the outside of the connecting plate (714). A slot is provided on the upper side of the pull rod (716), and an adjusting bolt (717) is rotatably connected to the inner wall of the slot through an external thread. A toothed ring (805) is provided on the outside of the adjusting bolt (717). The oil quantity control module (8) includes a locking ring (802), and a rack (806) is fixedly connected to the inner wall of the locking ring (802); the rack (805) meshes with the rack (806), and a spring (804) is fixedly connected to the side of the guide buckle (803) away from the rack (805), and the end of the spring (804) away from the guide buckle (803) is fixedly connected to the inner wall of the locking ring (802).

2. An electronic transformer with an oil replenishment structure according to claim 1, characterized in that, The discharge pipe (10) is provided with a mounting frame (701) on the outside. The bottom of the mounting frame (701) is fixedly connected to the bottom inner wall of the container (4). Multiple circumferentially distributed oil guide ports (706) are provided on the mounting frame (701). The outside of the oil plug (711) is slidably connected to the inner wall of the mounting frame (701). An installation cylinder (707) is fixedly connected to the upper side of the mounting frame (701).

3. An electronic transformer with an oil replenishment structure according to claim 2, characterized in that, The mounting cylinder (707) has a slit, and a guide frame (708) is fixedly connected to the inner wall of the slit. The inner wall of the guide frame (708) is slidably connected to the outer side of the connecting rod (710), and a stabilizing plate (709) is fixedly connected to the outer side of the guide frame (708). The outer side of the stabilizing plate (709) is fixedly connected to the inner wall of the mounting cylinder (707). A support frame (712) is fixedly connected to the upper side of the mounting cylinder (707). Both ends of the support frame (712) away from the mounting cylinder (707) are movably connected to wire rollers (713). The outer side of the thin rope (703) is in contact with the outer side of the two wire rollers (713).

4. An electronic transformer with an oil replenishment structure according to claim 3, characterized in that, The inner wall of the mounting cylinder (707) has two symmetrical grooves, and the same floating box (720) is slidably connected in the two grooves. The side of the floating box (720) closest to the guide frame (708) is movably connected to an inclined plate (719), and the side of the inclined plate (719) away from the floating box (720) is fixedly connected to a U-shaped frame (718). A stopper (721) is fixedly connected to the upper side of the U-shaped frame (718).

5. An electronic transformer with an oil replenishment structure according to claim 3, characterized in that, The guide frame (708) has two symmetrical circular openings on its exterior. The inner walls of the two circular openings are movably connected to the inner wall of the U-shaped frame (718). A stop block (722) is fixedly connected to the side of the connecting rod (710) near the floating box (720). The bottom of the stop block (722) is in contact with the outside of the stop member (721). The stop block (722) is located above the stop member (721).

6. An electronic transformer with an oil-filling structure according to claim 1, characterized in that, The upper side of the adjusting bolt (717) is movably connected to the end of the thin rope (703) away from the float (704), and the bottom inner wall of the container (4) and the upper side of the container (1) are both provided with small holes. The inner walls of the two small holes are fixedly connected to the same isolation tube (702). One end of the thin rope (703) connected to the float (704) passes through the isolation tube (702) and enters the container (1). The bottom of the float (704) is fixedly connected to a counterweight (705).

7. An electronic transformer with an oil replenishment structure according to claim 1, characterized in that, The tie rod (716) is externally fixedly connected to a fixing plate (801), which is located above the connecting plate (714). The upper side of the fixing plate (801) is slidably connected to the bottom of the locking ring (802). The locking ring (802) is externally slidably connected to a guide buckle (803), and the bottom of the guide buckle (803) is fixedly connected to the upper side of the fixing plate (801).

8. An electronic transformer with an oil replenishment structure according to claim 6, characterized in that, The bottom inner wall of the container (4) is fixedly connected to a vertical rod (807), a float (808) is slidably connected to the outside of the vertical rod (807), a contact (809) is slidably connected to the outside of the vertical rod (807), the bottom of the contact (809) is fixedly connected to the outside of the float (808), and a threaded groove (810) is opened on the outside of the vertical rod (807), and a nut (811) is rotatably connected to the outside of the threaded groove (810) through an external thread.

9. An electronic transformer with an oil-filling structure according to claim 8, characterized in that, The vertical rod (807) is externally slidably connected to a limit switch (812), which is located above the contact (809), and the upper side of the limit switch (812) is fixedly connected to the bottom of the nut (811).

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