A core for a low-noise low-vibration transformer with a large R angle and a processing technology thereof

Abstract

The application relates to the technical field of transformer cores, in particular to a low-noise low-vibration transformer core with a large R angle and a processing technology thereof. The core comprises a core body, a winding, a first clamping piece and a second clamping piece, wherein the core body is composed of an iron yoke and a core column, two first clamping pieces oppositely clamp the iron yoke, a plurality of lead screws are arranged on the side of the first clamping piece away from the iron yoke, a nut assembly is arranged on the second clamping piece, the nut assembly is composed of a nut and a fixing device, and the nuts in the plurality of nut assemblies are respectively threadedly connected with the lead screws in contact with the nuts. Through the cooperation of the lead screws and the nuts, the vibration of the transformer core can be reduced, the vibration of the core is limited in the direction where the lead screws are arranged, when the core vibrates, the core body drives the first clamping piece to move transversely and reciprocally, the lead screws are driven to move reciprocally, the nuts are driven to rotate, the force generated by the vibration is converted into the force of the nut rotation, and the amplitude of the vibration is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer core, in particular to a low-noise low-vibration transformer core with large R angle and a processing technology thereof. BACKGROUND

[0002] The core is stacked by silicon steel sheets coated with an insulating layer and fixed by clamps, etc. The silicon steel sheets will vibrate during work. If the clamping fittings are not tightly fastened or become loose after a long time, the silicon steel sheets will vibrate greatly, which will drive the clamps and even the transformer box to vibrate. The silicon steel sheets affected by the vibration of the transformer box, clamps, etc. will collide with each other and with the clamps, etc., thus generating more noise. Therefore, a transformer core capable of reducing the vibration of silicon steel sheets and reducing noise generation is needed. SUMMARY

[0003] The present application aims to provide a low-noise low-vibration transformer core with large R angle and a processing technology thereof to solve the problems raised in the background.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a low-noise low-vibration transformer core with large R angle includes a core body, a winding, a first clamp, and a second clamp. The core body is composed of an iron yoke and a core column. The core column is vertically arranged, and the winding is wound on the core column. The iron yoke connects the horizontal part of the core column to form a closed magnetic circuit. The two first clamps hold the iron yoke in opposite directions. The first clamps at the same horizontal position are fixedly connected by fasteners. The side of the first clamp away from the iron yoke is provided with a plurality of lead screws. The second clamp is arranged on the side of the first clamp away from the winding. The included angle between the second clamp and the first clamp is a right angle. Among the lead screws arranged on the opposite first clamps, the two lead screws with their axes on the same straight line form a group. Each group is provided with a second clamp on the side away from the winding. The second clamp is provided with a nut assembly. The nut assembly is composed of a nut and a fixer. The fixer is fixedly provided with a bearing. The nut is fixedly connected with the fixer through the bearing. Two placement holes are formed on the second clamp. The distance between the two placement holes is greater than the distance of the opposite long sides of the iron yoke held by the two first clamps. The nut assembly is placed in the placement hole. The nut assembly below the core body is inserted into the placement hole in the forward direction, with the nut above and the fixer below. The nut assembly above the core body is inserted into the placement hole in the reverse direction, with the nut below and the fixer above. The nuts in the nut assemblies are threadedly connected with the lead screws in contact therewith.

[0005] Further, the iron yoke is divided into a first iron yoke and a second iron yoke. The first iron yoke is arranged above the core column, and the second iron yoke is arranged below the core column. A pulley is further arranged below the second iron yoke. The tire of the pulley is made of rubber.

[0006] Further, a support block is arranged below the screw rod.

[0007] Further, soft rubber is arranged between the first clamp and the iron yoke.

[0008] Further, soft rubber is arranged at the position where the first clamp and the second clamp are in contact.

[0009] Further, soft rubber is arranged at the position where the gasket on the shock-absorbing rod and the second clamp are in contact.

[0010] Further, soft rubber is arranged at the bottom of the fixer in the nut assembly, and soft rubber is also arranged at the position where the placement hole and the fixer are in contact.

[0011] Further, a low-noise low-vibration transformer core processing technology with a large R angle is provided. Three windings are wound on a core column to form a core body. A pulley is placed at the lower end of the core body. Two first clamps are placed opposite each other to clamp a second iron yoke below the core body. Fasteners are used to fix the two first clamps. The operation is repeated to clamp a first iron yoke above the core body using two first clamps. After installation, the nut assembly is threadedly connected with the screw rod on the first clamp, so that each screw rod is connected with a nut assembly. The two nut assemblies placed below the two screw rods with their axes on the same straight line are placed in the second clamp in advance, with the nut on top and the fixer on the bottom. The fixer is inserted into the placement hole in the second clamp below in the forward direction. The nut assembly at the lower end of the core body is placed on the corresponding second clamp in sequence. The two nut assemblies placed on the two screw rods with their axes on the same straight line at the upper end of the core body are placed with the nut on the bottom and the fixer on the top, and are placed in the reverse direction. At this time, a second clamp is placed in the reverse direction, and the nut assembly is inserted into the placement hole thereon. The operation is repeated in sequence to fix each nut assembly at the upper end of the core body. A shock-absorbing rod is used to vertically pass through the holes in the two second clamps above and below. In sequence, a gasket, a spring, and a gasket are placed at one end of the shock-absorbing rod. Finally, a bolt is used to tighten the straight rod of the shock-absorbing rod. The operation is repeated to assemble the shock-absorbing rod. After completion, the operation is repeated until the oppositely arranged second clamps are fixed and connected using two shock-absorbing rods.

[0012] Further, soft rubber is arranged between the iron yoke and the first clamp during installation of the first clamp, soft rubber is arranged between the second clamp and the first clamp during installation of the second clamp, soft rubber is arranged at the position where the gasket and the second clamp are in contact during installation of the shock-absorbing rod, and soft rubber is arranged at the bottom of the fixer and at the position where the placement hole and the fixer are in contact during installation of the nut assembly.

[0013] Compared with the prior art, the present application has the following advantages:

[0014] (1) The present application can reduce the vibration of the transformer core by the cooperation of the lead screw and the nut, limit the vibration of the core in the direction set by the lead screw, and when the core vibrates, the first clamp moves transversely and reciprocally, the lead screw is driven to reciprocate, and the nut is driven to rotate, converting the vibration force into the force of the nut rotation, reducing the vibration amplitude.

[0015] (2) The present application can not only support the core body through the pulley, but also further convert the vibration into the force of the pulley rotation, further reducing the vibration amplitude.

[0016] (3) The first clamp and the second clamp of the present application can be replaced separately, if the accessory is damaged, only the damaged accessory needs to be replaced, and the most easily damaged nut assembly can also be replaced separately, which maximizes the service life of the core and reduces the use cost of the core.

[0017] (4) The R angle of the core column of the present application is large, which is convenient for winding and ensures the stability of the current.

[0018] (5) The present application can reduce the vibration between the second clamps through the shock absorbing rod, and can clamp the second clamps in the same vertical position, further ensuring the stability of the core and reducing the vibration.

[0019] (6) The soft rubber placed between the various components of the present application reduces the transmission of vibration between the various components and reduces the overall vibration of the core.

[0020] (7) The present application reduces the friction between the various components by reducing various vibrations, which can reduce noise while reducing vibration. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A schematic diagram of a low-noise low-vibration transformer core with a large R angle.

[0022] Figure 2 A disassembled schematic diagram of a low-noise low-vibration transformer core with a large R angle.

[0023] Figure 3 A schematic diagram of the core body.

[0024] Figure 4 A schematic diagram of the core body and winding.

[0025] Figure 5 A schematic diagram of the core body and the first clamp.

[0026] Figure 6Iron core body, first clamp, second clamp schematic diagram.

[0027] Figure 7 Second clamp, nut assembly schematic diagram.

[0028] Figure 8 Damping rod schematic diagram.

[0029] Wherein, 100, iron core body, 110, iron yoke, 111, first iron yoke, 112, second iron yoke, 1121, pulley, 120, core column, 200, winding, 300, first clamp, 310, fastener, 320, screw rod, 321, support block, 400, second clamp, 410, nut assembly, 411, nut, 412, fixator, 420, placement hole, 500, damping rod, 510, spring, 520, gasket, 530, bolt. DETAILED DESCRIPTION

[0030] The present application aims at the deficiencies of the prior art, and provides an iron core with large R angle for low-noise and low-vibration transformer and a processing technology thereof, which are specifically implemented by the following technical scheme:

[0031] Referring to Figure 1 , Figure 2 An iron core with large R angle for low-noise and low-vibration transformer comprises an iron core body 100, a winding 200, a first clamp 300 and a second clamp 400.

[0032] Referring to Figure 3 , Figure 5 The iron core body 100 is composed of an iron yoke 110 and a core column 120, the core column 120 is vertically arranged, and the winding 200 is arranged on the core column 120, and the R angle of the core column 120 is a quarter of a circle, so that the winding 200 is conveniently connected, and the magnetic circuit is more stable. The iron yoke 110 connects the horizontal part of the iron core column 120 to form a closed magnetic circuit.

[0033] Referring to Figure 5 Two first clamps 300 oppositely hold the iron yoke 110, and the first clamps 300 at the same horizontal position are fixedly connected through fasteners 310, so that the iron core body and the first clamps 300 form an integral whole, the weight is increased, and the distance between the two first clamps 300 can be adjusted by the fasteners 310, so that the tightness can be adjusted according to different needs, and various different needs can be met.

[0034] Referring to Figure 5 , Figure 6The first clamp 300 has several lead screws 320 on the side away from the yoke 110. The second clamp 400 is set close to the side of the first clamp 300 away from the winding 200, and the angle between the second clamp 400 and the first clamp 300 is a right angle, which further ensures the stability between the first clamp 300 and the second clamp 400. Among the several lead screws 320 set on the first clamp 300 facing each other, two lead screws 320 with their axes on the same straight line form a group, and each group has a second clamp 400 on the side away from the winding 200.

[0035] Reference Figure 6 , Figure 7 The second clamp 400 is provided with a nut assembly 410, which consists of a nut 411 and a retainer 412. A bearing is fixedly installed on the retainer 412, and the nut 411 is fixedly connected to the retainer 412 through the bearing. The second clamp 400 has two placement holes 420. The distance between the two placement holes 420 is greater than the distance between the opposite long sides when the two first clamps 300 clamp the yoke 110, ensuring that the two nut assemblies 410 can be threadedly connected to their corresponding lead screws 320, and preventing the problem of the lead screws 320 and the nut assembly 410 not being able to contact due to the width of the main body of the first clamp 300.

[0036] Reference Figure 7 The nut assembly 410 is placed on the second clamp 400 through the placement hole 420 and can be replaced individually. Among all the components, the nut 411 in the nut assembly 410 is the most prone to wear and tear because it is subject to drilling and rotation. Its probability of damage is much higher than that of other components. Therefore, the nut assembly 410, which can be replaced individually, can greatly improve the overall lifespan of the invention and greatly reduce the use and maintenance costs of the iron core.

[0037] Reference Figure 6The nut assembly 410 on the second clamp 400 below the core body 100 is inserted into the placement hole 420 in a normal direction, the nut 411 is above, and the fixer 412 is below; the nut assembly 410 on the second clamp 400 above the core body 100 is inserted into the placement hole 420 in a reverse direction, the nut 411 is below, and the fixer 412 is above; this design enables the upper and lower parts of the clamp to be manufactured by using a common mold, thereby saving mold opening costs and reducing manufacturing costs; the fixing effect of the application can be achieved by only inverting the second clamp 400 above; because the nut 411 above is threadedly connected with the corresponding screw 320, and then placed in the corresponding second clamp 400, the second clamp 400 does not play a role in bearing at this time, but only plays a role in limiting the two nut assemblies 410 in the same second clamp 400; because the two nut assemblies 410 are limited in the same second clamp 400, they can play a stabilizing role for each other, thereby ensuring the stability of the second clamp 400 and reducing the noise generated. The two sets of nut assemblies 410 and screws 320 cooperate with each other; the nut assembly 410 and the screw 320 below mainly play a role in bearing and reducing vibration; the nut assembly 410 and the screw 320 above mainly play a role in limiting the moving track, and do not play a role in bearing; the two sets of nut assemblies 410 and screws 320 can further reduce vibration, and the nut assembly 410 and the screw 320 limit the direction of core vibration, so that the core can only displace in the horizontal direction, and more vibration generated force is converted into the rotating force of the nut 411.

[0038] With reference to Figure 6 The nut 411 in each nut assembly 410 is threadedly connected with the corresponding screw 320; the nut 411 can adopt a silent damping ball nut design; when the core vibrates, the first clamp 300 clamping the core moves synchronously with the core; at this time, the screw 320 on the first clamp 300 moves synchronously with the first clamp 300; the screw 320 moves to drive the nut 411 to rotate; because the vibration amplitude is generally small, the amplitude of the back-and-forth reciprocating movement of the screw 320 is also small, and the rotation amplitude of the nut 411 is also small; when the core vibrates, most of the vibration generated force is converted into the rotating force of the nut; this mode reduces the vibration amplitude, so that the core can only displace in a stable and extremely small range in the horizontal direction, thereby ensuring the stability of the core operation. Reducing vibration also reduces the noise generated by the core due to vibration.

[0039] With reference to Figure 2 , Figure 4, iron yoke 110 is divided into first iron yoke 111, second iron yoke 112, first iron yoke 111 is arranged above core column 120, second iron yoke 112 is arranged below core column 120, second iron yoke 112 below is further provided with pulley 1121, pulley 1121 tire is made of rubber, and the rubber-made pulley 1121 has a certain elasticity, so the diameter of the pulley 1121 can be designed slightly larger, slightly raise the height of the iron core body 100, make it under the drive of pulley 1121 can be more smooth sliding, pulley 1121 can be placed below the second iron yoke 112, through the weight of the iron core itself on the support frame of pulley 1121 to make it stable operation, can also be prefabricated below the second iron yoke 112, that is, when manufacturing the second iron yoke 112, the same material as the second iron yoke 112 is used to manufacture the support frame of the wheel 1121 below, and then the wheel of the support frame of the wheel 1121 is placed on it, because the wheel is made of rubber, insulator, will not affect the stability of the closed magnetic circuit.

[0040] Referring to 5, below the screw rod 320, support block 321 is arranged, because the screw rod 32 is longer than the first clamp 300, there is a risk of fracture, the support block 321 forms a support below it, so that the force arm is shortened, and the fracture risk is greatly reduced.

[0041] Referring to Figure 2 , the first clamp 300 and the iron yoke 110 are provided with soft glue. The first clamp 300 and the second clamp 400 are provided with soft glue. The gasket 520 on the shock absorbing rod 500 and the second clamp 400 are provided with soft glue. The bottom of the fixator 412 in the nut assembly 410 is provided with soft glue, and the position where it contacts the placement hole 420 is also provided with soft glue. Soft glue can reduce the transmission of vibration between each component, further reduce vibration, and also reduce the noise generated by friction between each metal component.

[0042] The application discloses a core processing technology for a low-noise and low-vibration transformer with a large R angle. Three windings 200 are respectively wound on a core column 120 to form a core body 100. A pulley 1121 is arranged at the lower end of the core body 100. Two first clamping pieces 300 are arranged oppositely to clamp a second yoke 112 below the core body 100. The two first clamping pieces 300 are fixed by using fasteners 310. The operation is repeated to clamp a first yoke 111 above the core body 100 by using two first clamping pieces 300. After installation, a nut assembly 410 is threadedly connected with a lead screw 320 on the first clamping piece 300, so that a nut assembly 410 is connected with each lead screw 320. Two nut assemblies 410 arranged on two lead screws 320 with the same axis at the lower end of the core body 100 are arranged below a second clamping piece 400 with the nut 411 upward and the fixing device 412 downward. The second clamping piece 400 is inserted into a placing hole 420 arranged on the second clamping piece 400 in a forward direction. The nut assembly 410 at the lower end of the core body 100 is arranged on the corresponding second clamping piece 400. Two nut assemblies 410 arranged on two lead screws 320 with the same axis at the upper end of the core body 100 are arranged with the nut 411 downward and the fixing device 412 upward in a reverse direction. A second clamping piece 400 is arranged in a reverse direction. The nut assembly 410 is inserted into the placing hole 420. The nut 411 upward is threadedly connected with the corresponding lead screw 320. Then the nut assembly 410 is arranged on the corresponding second clamping piece 400. The second clamping piece 400 does not bear weight but limits the two nut assemblies 410 in the same second clamping piece 400. The operation is repeated to fix each nut assembly 410 at the upper end of the core body 100. A damping rod 500 is vertically arranged through the holes arranged on the upper and lower second clamping pieces 400. Then a gasket 520, a spring 510 and a gasket 520 are arranged on one end of the damping rod 500. Finally, a bolt 530 is screwed on the straight rod of the damping rod 500. The operation is repeated to assemble the damping rod 500. The operation is repeated until the oppositely arranged second clamping pieces 400 are fixed and connected by using two damping rods 500.

[0043] When the first clamping piece 300 is installed, soft glue is arranged between the yoke 110 and the first clamping piece 300. When the second clamping piece 400 is installed, soft glue is arranged between the second clamping piece 400 and the first clamping piece 300. When the damping rod 500 is installed, soft glue is arranged at the position where the gasket 520 and the second clamping piece 400 meet. When the nut assembly 410 is installed, soft glue is arranged at the bottom of the fixing device 412 and the position where the placing hole 420 and the fixing device 412 meet.

Claims

1. A core for a low noise and low vibration transformer having a large R angle, characterized by, The iron core body (100), the winding (200), the first clamp (300), the second clamp (400), wherein The iron core body (100) is composed of an iron yoke (110) and a core column (120), the core column (120) is vertically arranged, and the winding (200) is wound on the core column (120), The iron yoke (110) is connected to the horizontal part of the core column (120) to form a closed magnetic circuit, Two first clamps (300) oppositely clamp the iron yoke (110), the first clamps (300) at the same horizontal position are fixedly connected through fasteners (310), and the side of the first clamps (300) away from the iron yoke (110) is provided with a plurality of lead screws (320), The second clamp (400) is arranged on the side of the first clamp (300) away from the winding (200), and the included angle between the second clamp (400) and the first clamp (300) is a right angle, among the plurality of lead screws (320) arranged on the oppositely arranged first clamps (300), two lead screws (320) with the same axis are a group, and one second clamp (400) is arranged on the side of each group away from the winding (200), The second clamp (400) is provided with a nut assembly (410), the nut assembly (410) is composed of a nut (411) and a fixer (412), the fixer (412) is fixedly provided with a bearing, the nut (411) is fixedly connected with the fixer (412) through the bearing, two placing holes (420) are formed in the second clamp (400), the distance between the two placing holes (420) is greater than the distance of the opposite long sides of the iron yoke (110) clamped by the two first clamps (300), and the nut assembly (410) is placed on the second clamp (400) through the placing holes (420), The nut assembly (410) on the second clamp (400) below the iron core body (100) is inserted into the placing hole (420) in a forward direction, the nut (411) is above, and the fixer (412) is below, The nut assembly (410) on the second clamp (400) above the iron core body (100) is inserted into the placing hole (420) in a reverse direction, the nut (411) is below, and the fixer (412) is above, The nuts (411) in the plurality of nut assemblies (410) are respectively threadedly connected with the lead screws (320) in contact therewith.

2. The iron core with a large R angle and low noise and low vibration for a transformer according to claim 1, wherein The iron yoke (110) is divided into a first iron yoke (111) and a second iron yoke (112), the first iron yoke (111) is arranged above the core column (120), and the second iron yoke (112) is arranged below the core column (120), A pulley (1121) is further arranged below the second iron yoke (112), and the tire of the pulley (1121) is made of rubber. Holes are formed in the second clamp (400), and two second clamps (400) at a vertical position are fixedly connected through a damping rod (500), 3. A core for a low noise and low vibration transformer with a large R angle according to claim 1 or 2, characterized in that, The damping rod (500) is composed of a spring (510), a gasket (520) and a bolt (530). ​ The shock rod (500) is provided with a spring (510) at each end, the spring (510) is provided with a gasket (520) at each end, the diameter of the gasket (520) is larger than the hole of the second clamp (400), the center of the gasket (520) is also provided with a hole, and the bolt (530) is threadedly connected with the straight rod by penetrating the two gaskets (520) and the spring (510).

4. The low noise and low vibration transformer core with a large R angle according to claim 3, characterized in that, A supporting block (321) is arranged below the lead screw (320).

5. The low noise and low vibration transformer core with a large R angle according to claim 3, characterized by Soft glue is arranged between the first clamp (300) and the iron yoke (110).

6. A core for a low noise and low vibration transformer having a large R angle according to claim 3, characterized in that, Soft glue is arranged at the position where the first clamp (300) and the second clamp (400) contact.

7. The low noise and low vibration transformer core with a large R angle according to claim 3, characterized by Soft glue is arranged at the position where the gasket (520) on the shock rod (500) and the second clamp (400) contact.

8. The low noise and low vibration transformer core with a large R angle according to claim 3, characterized by, Soft glue is arranged at the bottom of the fixer (412) in the nut assembly (410), and soft glue is also arranged at the position where the fixer (412) and the placing hole (420) contact.

9. A low noise and low vibration transformer core with a large R angle processing technology, characterized in that, Three windings (200) are wound on a core column (120) to form a core body (100), and a pulley (1121) is arranged at the lower end of the core body (100), Then, two first clamps (300) are placed opposite to each other to clamp the second iron yoke (112) below the core body (100), and the two first clamps (300) are fixed by using a fastener (310), the operation is repeated, two first clamps (300) are used to clamp the first iron yoke (111) above the core body (100), after installation, the nut assembly (410) is threadedly connected with the lead screw (320) on the first clamp (300), so that one nut assembly (410) is connected to each lead screw (320), The second clamp (400) is placed below the two nut assemblies (410) arranged on the two lead screws (320) at the lower end of the core body (100) and having the same axis, The nut (411) is arranged above and the fixer (412) is arranged below, and the second clamp (400) is inserted into the placing hole (420) arranged on the second clamp (400) below in a forward direction, the operation is repeated in sequence, and the nut assembly (410) at the lower end of the core body (100) is arranged on the corresponding second clamp (400), The two nut assemblies (410) arranged on the two lead screws (320) at the upper end of the core body (100) and having the same axis are placed with the nut (411) below and the fixer (412) above in a reverse direction, at this time, one second clamp (400) is placed in a reverse direction, the nut assembly (410) is inserted into the placing hole (420) thereon, the operation is repeated in sequence, and each nut assembly (410) at the upper end of the core body (100) is fixed, Use shock absorbing rod (500), vertically through the two second clamping piece (400) on the opening of the hole, and then in turn in shock absorbing rod (500) one end of the gasket (520), spring (510), gasket (520), finally using bolt (530) will be tightened to the straight rod of shock absorbing rod (500), repeat the operation, shock absorbing rod (500) assembly, after the completion of the operation until the second clamping piece (400) are arranged in pairs using two shock absorbing rod (500) fixed connection.

10. The core processing technique for a low noise and low vibration transformer with a large R angle according to claim 9, characterized in that, When installing the first clamping piece (300), soft glue is placed between the iron yoke (110) and the first clamping piece (300), When installing the second clamping piece (400), soft glue is placed between the second clamping piece (400) and the first clamping piece (300), When installing the shock absorbing rod (500), soft glue is placed at the position where the gasket (520) and the second clamping piece (400) meet, When installing the nut assembly (410), soft glue is placed at the bottom of the fixator (412) and at the position where the hole (420) and the fixator (412) meet.

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