A method for reducing the AC electromagnetic noise of a transformer

Abstract

The present invention belongs to the technical field of transformers, and in particular to a method for reducing transformer AC electromagnetic noise, comprising the following main steps: S1, applying a layer of epoxy glue on the top of the transformer clamp frame by a glue coating device; S2, then smoothing the epoxy glue; S3, applying the epoxy glue on the top of the transformer clamp frame; S4, placing the transformer for six hours to allow the epoxy glue to dry, and then installing the transformer and the fixed clamp frame together; the glue coating device used in the above method for reducing transformer AC electromagnetic noise includes a mounting frame, the upper side wall of which is fixedly connected to a storage box. The present invention is capable of coating a layer of epoxy glue on the top of the clamp frame before installing the transformer on the fixed clamp frame, and then impregnating it. After drying for six hours, the transformer electromagnetic noise is basically free of current vibration sound, thereby avoiding the problem that the electromagnetic noise of the transformer will affect the rest of people nearby when it is installed close to where people live.

Description

Technical Field

[0001] The invention belongs to the technical field of transformers, and in particular relates to a method for reducing AC electromagnetic noise of a transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are a primary coil, a secondary coil, and an iron core (magnetic core). In electrical equipment and wireless circuits, it is often used for voltage stepping, impedance matching, and safety isolation. In a generator, whether the coil moves through a magnetic field or the magnetic field moves through a fixed coil, an electric potential is induced in the coil. In both cases, the value of the magnetic flux remains unchanged, but the amount of magnetic flux intersecting the coil changes. This is the principle of mutual induction. A transformer is a device that uses electromagnetic mutual induction to transform voltage, current, and impedance.

[0003] When existing transformers are operating normally, there is generally a uniform humming sound. This is the sound caused by the vibration of the iron core caused by the alternating magnetic flux. When the transformer is installed in a remote place in the wild, the humming sound caused by the vibration of the iron core caused by the alternating magnetic flux will not affect people's lives. When the transformer is installed close to where people live, the humming sound will affect people's rest at night.

[0004] Therefore, we propose a method to reduce the AC electromagnetic noise of transformer to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies of the existing technology. The present invention provides a method for reducing the AC electromagnetic noise of a transformer, which has the advantages of avoiding the problem that the electromagnetic noise will affect the rest of people around when the transformer is installed too close to where people live. It solves the problem that when the existing transformer is operating normally, there is generally a uniform humming sound. This is the sound caused by the vibration of the iron core caused by the alternating magnetic flux. When the transformer is installed in a remote place in the wild, the humming sound of the iron core vibration caused by the alternating magnetic flux will not affect people's lives. When the transformer is installed close to where people live, the humming sound will affect people's rest at night.

[0006] In order to achieve the above-mentioned purpose of avoiding the problem that electromagnetic noise affects the rest of people around when the transformer is installed close to where people live, the present invention provides the following technical solution: a method for reducing the AC electromagnetic noise of a transformer, comprising the following steps:

[0007] S1. Apply a layer of epoxy glue on the top of the transformer frame using a glue coating device;

[0008] S2, then smoothing the epoxy glue;

[0009] S3, apply epoxy glue to the top of the transformer clamp frame;

[0010] S4. Leave the transformer for six hours to allow the epoxy glue to dry, and then install the transformer and the fixing frame together;

[0011] The glue coating device used in the above-mentioned method for reducing the AC electromagnetic sound of the transformer includes an installation frame, the upper side wall of the installation frame is fixedly connected to the storage box, the upper side wall of the storage box is fixedly connected to the feed pipe, the left side wall of the storage box is fixedly connected to the peristaltic pump, the feed end of the peristaltic pump is fixedly connected to the side wall of the storage box, the output end of the peristaltic pump passes through the side wall of the installation frame and is fixedly connected to the nozzle through an elastic tube, the lower inner wall of the installation frame is fixedly connected to the support frame, the inner wall of the support frame is rotatably connected to the lead screw, the right side wall of the support frame is fixedly connected to the first motor, the output end of the first motor passes through the side wall of the support frame and is fixedly connected to the lead screw, the rod wall of the lead screw is threadedly sleeved with a wire drum, the upper side wall of the wire drum is fixedly connected to a movable plate, the upper side wall of the support frame is provided with a movable opening that matches the movable plate, and the upper side wall of the movable plate extends out of the movable opening and is fixedly connected to the placement plate.

[0012] Preferably, a first hydraulic cylinder is fixedly connected to the upper inner wall of the installation frame, and an output end of the first hydraulic cylinder is fixedly connected to the side wall of the nozzle through a cross frame.

[0013] Preferably, the upper side wall of the horizontal frame is fixedly connected to a reflux pump, the feed end of the reflux pump passes through the side wall of the horizontal frame and is fixedly connected to the side wall of the nozzle, the discharge end of the reflux pump is fixedly connected to a reflux pipe, the upper end of the reflux pipe passes through the side wall of the mounting frame and is fixedly connected to the side wall of the storage box.

[0014] Preferably, the walls of the return pipe are coiled together in a serpentine shape and are covered with an elastic band.

[0015] Preferably, two baffles are fixedly connected symmetrically on the left and right sides of the upper side wall of the placement plate, the side wall of the baffle is provided with a clamping groove and a clamping plate is inserted in the clamping groove, the side wall of the clamping plate is fixedly connected to a pull rod, the side wall of the clamping groove is provided with a through hole matching the pull rod, the side wall of the baffle is fixedly connected to a locking cylinder covering the outside of the pull rod, the inner wall of the locking cylinder is provided with a locking groove, a locking plate is inserted in the locking groove, the side walls on the opposite side of the locking plate and the pull rod are fixedly connected with a plurality of mutually matching teeth, the upper end of the pull rod extends out of the locking groove and is fixedly connected with a pull plate, and the same first spring is fixedly connected between the pull plate and the locking cylinder.

[0016] Preferably, the upper inner wall of the mounting frame is fixedly connected to a second hydraulic cylinder, the protruding end of the second hydraulic cylinder is fixedly connected to a working box, the inner wall of the working box is rotatably connected to a threaded rod, the right side wall of the working box is fixedly connected to a second motor, the output end of the second motor passes through the side wall of the working box and is fixedly connected to the threaded rod, the rod wall of the threaded rod is threadedly sleeved with a threaded barrel, the lower side wall of the threaded barrel is fixedly connected to a guide plate, the lower side wall of the working box is provided with a guide port that matches the guide plate, the lower side wall of the guide plate extends out of the guide port and is fixedly connected to a trowel.

[0017] Preferably, the inner wall of the storage box is rotatably connected to two stirring racks, the upper ends of the stirring racks extend out of the storage box, the right side wall of the storage box is fixedly connected to a third motor, the output end of the third motor and the upper end of the stirring rack are both fixedly connected to a double-groove pulley, and the outer sleeves of two adjacent double-groove pulleys are provided with the same conveyor belt.

[0018] Preferably, a plurality of support wheels are fixedly connected to the front and rear sides of the lower side wall of the placement plate.

[0019] Compared with existing technologies, a method for reducing transformer AC electromagnetic noise has the following advantages:

[0020] 1. By setting up the installation frame, storage box, peristaltic pump, nozzle, support frame, screw rod, first motor, wire drum, movable plate and placement plate, before installing the transformer on the fixed clamp frame, a layer of epoxy glue can be applied on the top of the clamp frame, and then impregnated. After drying for six hours, the electromagnetic sound of the transformer is basically free of the sound of current vibration, which avoids the problem that the electromagnetic sound will affect the rest of people around when the transformer is installed close to where people live.

[0021] 2. Through the provided baffle, clamping plate, pull rod, clamping tube, clamping plate, clamping teeth and second hydraulic cylinder, the transformer clamping frame can be automatically moved in the installation frame, and then the gluing and other operations can be automatically performed without manual gluing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a method for reducing AC electromagnetic noise of a transformer provided by the present invention;

[0023] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0024] Figure 3 yes Figure 1 An enlarged schematic diagram of part B;

[0025] Figure 4 The diagram is a schematic diagram of the internal structure of a baffle in a method for reducing AC electromagnetic noise of a transformer provided by the present invention.

[0026] In the figure: 1. Installation frame; 2. Storage box; 3. Peristaltic pump; 4. Nozzle; 5. Support frame; 6. Screw; 7. First motor; 8. Wire drum; 9. Moving plate; 10. Placing plate; 11. First hydraulic cylinder; 12. Reflux pump; 13. Reflux pipe; 14. Elastic band; 15. Baffle; 16. Clamping plate; 17. Pull rod; 18. Positioning drum; 19. Positioning plate; 20. Gear; 21. Second hydraulic cylinder; 22. Working box; 23. Threaded rod; 24. Second motor; 25. Threaded drum; 26. Guide plate; 27. Screw plate; 28. Stirring frame; 29. Third motor; 30. Double-groove pulley; 31. Conveyor belt; 32. Support wheel. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figure 1-4 As shown, a method for reducing AC electromagnetic noise of a transformer includes the following steps:

[0029] S1. Apply a layer of epoxy glue on the top of the transformer frame using a glue coating device;

[0030] S2, then smoothing the epoxy glue;

[0031] S3, apply epoxy glue to the top of the transformer clamp frame;

[0032] S4. Leave the transformer for six hours to allow the epoxy glue to dry, and then install the transformer and the fixing frame together;

[0033] The gluing device used in the method for reducing the AC electromagnetic sound of the transformer includes an installation frame 1, the upper side wall of the installation frame 1 is fixedly connected to a storage box 2, the upper side wall of the storage box 2 is fixedly connected to a feed pipe, the left side wall of the storage box 2 is fixedly connected to a peristaltic pump 3, the feed end of the peristaltic pump 3 is fixedly connected to the side wall of the storage box 2, the output end of the peristaltic pump 3 passes through the side wall of the installation frame 1 and is fixedly connected to a nozzle 4 through an elastic tube, the lower inner wall of the installation frame 1 is fixedly connected to a support frame 5, the inner wall of the support frame 5 is rotatably connected to a screw rod 6, the right side wall of the support frame 5 is fixedly connected to a first motor 7, the output end of the first motor 7 passes through the side wall of the support frame 5 and is fixedly connected to the screw rod 6, the rod wall of the screw rod 6 is threadedly sleeved with a wire drum 8, the upper side wall of the wire drum 8 is fixedly connected to a movable plate 9, the upper side wall of the support frame 5 is provided with a movable opening matching the movable plate 9, and the upper side wall of the movable plate 9 extends out of the movable opening and is fixedly connected to a placement plate 10.

[0034] A first hydraulic cylinder 11 is fixedly connected to the upper inner wall of the installation frame 1 , and an output end of the first hydraulic cylinder 11 is fixedly connected to the side wall of the nozzle 4 via a cross frame.

[0035] A reflux pump 12 is fixedly connected to the upper side wall of the horizontal frame, the feed end of the reflux pump 12 passes through the side wall of the horizontal frame and is fixedly connected to the side wall of the nozzle 4, the discharge end of the reflux pump 12 is fixedly connected to a reflux pipe 13, the upper end of the reflux pipe 13 passes through the side wall of the mounting frame 1 and is fixedly connected to the side wall of the storage box 2, so that excess epoxy glue can be recovered.

[0036] The walls of the return pipe 13 are coiled together in a serpentine shape and are covered with an elastic band 14 to facilitate fixing the return pipe 13 .

[0037] Two baffles 15 are fixedly connected to the left and right sides of the upper side wall of the placement plate 10 symmetrically in front and back. The side wall of the baffle 15 is provided with a clamping groove and a clamping plate 16 is inserted in the clamping groove. The side wall of the clamping plate 16 is fixedly connected with a pull rod 17. The side wall of the clamping groove is provided with a through hole that matches the pull rod 17. The side wall of the baffle 15 is fixedly connected with a locking cylinder 18 that is covered outside the pull rod 17. The inner wall of the locking cylinder 18 is provided with a locking groove, and a locking plate 19 is inserted in the locking groove. The side walls on the opposite side of the locking plate 19 and the pull rod 17 are fixedly connected with a plurality of mutually matching teeth 20. The upper end of the pull rod 17 extends out of the locking groove and is fixedly connected with a pull plate. The same first spring is fixedly connected between the pull plate and the locking cylinder 18, which can fix and clamp the clamping frame.

[0038] A second hydraulic cylinder 21 is fixedly connected to the upper inner wall of the mounting frame 1, and the protruding end of the second hydraulic cylinder 21 is fixedly connected to the working box 22. The inner wall of the working box 22 is rotatably connected to a threaded rod 23. The right side wall of the working box 22 is fixedly connected to a second motor 24. The output end of the second motor 24 passes through the side wall of the working box 22 and is fixedly connected to the threaded rod 23. The rod wall of the threaded rod 23 is threadedly sleeved with a threaded barrel 25. The lower side wall of the threaded barrel 25 is fixedly connected to a guide plate 26. The lower side wall of the working box 22 is provided with a guide port that matches the guide plate 26. The lower side wall of the guide plate 26 extends out of the guide port and is fixedly connected to a trowel plate 27, which can smooth the epoxy glue on the upper surface of the clamping frame.

[0039] The inner wall of the storage box 2 is rotatably connected to two stirring racks 28, the upper end of the stirring rack 28 extends out of the storage box 2, and the right side wall of the storage box 2 is fixedly connected to a third motor 29. The output end of the third motor 29 and the upper end of the stirring rack 28 are both fixedly connected to a double-groove pulley 30, and the two adjacent double-groove pulleys 30 are outerly provided with the same conveyor belt 31, which can stir the epoxy glue in the storage box 2.

[0040] A plurality of support wheels 32 are fixedly connected to the front and rear sides of the lower side wall of the placement plate 10 , thereby improving the convenience of moving the placement plate 10 .

[0041] The operating principle of the present invention is now explained as follows: the transformer clamping frame is placed on the placement plate 10 and clamped, and then the first motor 7 is started to work. The first motor 7 drives the screw rod 6, and drives the wire drum 8 to move through the threaded fit. The wire drum 8 drives the clamping frame to move through the movable plate 9, and then the peristaltic pump 3 is started to work. The peristaltic pump 3 applies the epoxy glue in the storage box 2 to the upper side wall of the clamping frame, and then waits for the epoxy paint to dry.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for reducing AC electromagnetic noise of a transformer, characterized in that: The main steps include: S1. Apply a layer of epoxy glue on the top of the transformer frame using a glue coating device; S2, then smoothing the epoxy glue; S3, apply epoxy glue to the top of the transformer clamp frame; S4. Leave the transformer for six hours to allow the epoxy glue to dry, then install the transformer and the fixing frame together; The glue coating device used in the above-mentioned method for reducing the AC electromagnetic noise of the transformer includes a mounting frame (1), the upper side wall of the mounting frame (1) is fixedly connected to a storage box (2), the upper side wall of the storage box (2) is fixedly connected to a feed pipe, the left side wall of the storage box (2) is fixedly connected to a peristaltic pump (3), the feed end of the peristaltic pump (3) is fixedly connected to the side wall of the storage box (2), the output end of the peristaltic pump (3) passes through the side wall of the mounting frame (1) and is fixedly connected to a nozzle (4) through an elastic tube. ), the lower inner wall of the mounting frame (1) is fixedly connected to a support frame (5), the inner wall of the support frame (5) is rotatably connected to a screw rod (6), the right side wall of the support frame (5) is fixedly connected to a first motor (7), the output end of the first motor (7) passes through the side wall of the support frame (5) and is fixedly connected to the screw rod (6), the rod wall of the screw rod (6) is threadedly sleeved with a wire drum (8), the upper side wall of the wire drum (8) is fixedly connected to a movable plate (9), the upper side wall of the support frame (5) is opened A movable opening matching with the movable plate (9) is provided, the upper side wall of the movable plate (9) extends out of the movable opening and is fixedly connected with a placement plate (10), two baffles (15) are fixedly connected symmetrically front and back to the left and right sides of the upper side wall of the placement plate (10), a clamping groove is provided on the side wall of the baffle (15) and a clamping plate (16) is inserted into the clamping groove, a pull rod (17) is fixedly connected to the side wall of the clamping plate (16), and a through hole matching with the pull rod (17) is provided on the side wall of the clamping groove The side wall of the baffle (15) is fixedly connected with a locking cylinder (18) which is covered outside the pull rod (17); the inner wall of the locking cylinder (18) is provided with a locking groove, and a locking plate (19) is inserted into the locking groove; the locking plate (19) and the side wall on the opposite side of the pull rod (17) are fixedly connected with a plurality of mutually matching locking teeth (20); the upper end of the pull rod (17) extends out of the locking groove and is fixedly connected with the pull plate; the pull plate and the locking cylinder (18) are fixedly connected with the same first spring.

2. The method for reducing AC electromagnetic noise of a transformer according to claim 1, characterized in that: A first hydraulic cylinder (11) is fixedly connected to the upper inner wall of the installation frame (1), and an output end of the first hydraulic cylinder (11) is fixedly connected to the side wall of the nozzle (4) via a cross frame.

3. The method for reducing AC electromagnetic noise of a transformer according to claim 2, characterized in that: A reflux pump (12) is fixedly connected to the upper side wall of the horizontal frame, the feed end of the reflux pump (12) passes through the side wall of the horizontal frame and is fixedly connected to the side wall of the nozzle (4), the discharge end of the reflux pump (12) is fixedly connected to a reflux pipe (13), the upper end of the reflux pipe (13) passes through the side wall of the installation frame (1) and is fixedly connected to the side wall of the storage box (2).

4. The method for reducing AC electromagnetic noise of a transformer according to claim 3, characterized in that: The walls of the return pipe (13) are coiled together in a serpentine shape and are covered with an elastic band (14).

5. The method for reducing AC electromagnetic noise of a transformer according to claim 1, characterized in that: The upper inner wall of the mounting frame (1) is fixedly connected to a second hydraulic cylinder (21), the extended end of the second hydraulic cylinder (21) is fixedly connected to a working box (22), the inner wall of the working box (22) is rotatably connected to a threaded rod (23), the right side wall of the working box (22) is fixedly connected to a second motor (24), the output end of the second motor (24) passes through the side wall of the working box (22) and is fixedly connected to the threaded rod (23), the rod wall of the threaded rod (23) is threadedly sleeved with a threaded barrel (25), the lower side wall of the threaded barrel (25) is fixedly connected to a guide plate (26), the lower side wall of the working box (22) is provided with a guide opening that matches the guide plate (26), the lower side wall of the guide plate (26) extends out of the guide opening and is fixedly connected to a trowel plate (27).

6. The method for reducing AC electromagnetic noise of a transformer according to claim 1, characterized in that: The inner wall of the storage box (2) is rotatably connected to two stirring racks (28), the upper ends of the stirring racks (28) extend out of the storage box (2), and the right side wall of the storage box (2) is fixedly connected to a third motor (29), the output end of the third motor (29) and the upper end of the stirring rack (28) are both fixedly connected to a double-groove pulley (30), and the outer shells of two adjacent double-groove pulleys (30) are provided with the same conveyor belt (31).

7. The method for reducing AC electromagnetic noise of a transformer according to claim 1, characterized in that: A plurality of supporting wheels (32) are fixedly connected to the front and rear sides of the lower side wall of the placement plate (10).

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