Low-noise, high-overload energy storage transformer wind chamber coil winding and coil winding mechanism

Abstract

The present invention discloses a low-noise, high-overload energy storage transformer air cavity coil winding and a coil winding mechanism, which relates to the technical field of transformer air cavity coils. Aiming at the low noise and high load operating characteristics of the transformer coil winding, the invention specifically increases the number of winding turns and controls the tightness of the copper wire during winding, and takes a machine head assembly as a basis. First, the winding angle during winding is directional-changed by a reversing gear, and further a synchronous wire pressing action is achieved by a wire pressing elastic plate coordinated with a directional support rod. The wire pressing action does not interfere with the winding action. The key lies in: coordinating with the winding action to maintain the specific position of the copper wire after winding in real time, thereby maintaining the copper wire gap after winding, and secondly further changing the tightness of the copper wire during the winding process by a hemispherical sleeve, a wire threading arc tube and a winding column. Coordinating with the low noise operating characteristic, the winding tightness is changed on the basis of increasing the number of turns to maintain the structural stability of the overall coil winding.

Description

Technical Field

[0001] The invention relates to the technical field of transformer air cavity coils, and in particular to an air cavity coil winding and a coil winding mechanism of a low-noise, high-overload energy storage transformer. Background Art

[0002] The load capacity of a transformer is directly related to the windings and the air cavity coil. The turns ratio of the windings directly affects the voltage conversion ratio of the transformer, and thus affects its output power and current capacity. As the number of turns of the windings increases, greater noise is generated due to problems such as core vibration, winding vibration, mechanical vibration, air flow, and electromagnetic radiation. Therefore, the noise reduction method of this transformer is particularly important. Please refer to the relevant content in publication numbers CN104851577A and CN111834091A.

[0003] It should be noted that: based on conventional noise reduction technology (soundproof cover, shock absorption, sound-absorbing materials), the winding process can be further optimized. For example, in order to address the causes of core vibration and winding vibration, the tightness and arrangement of the copper wire winding can be improved. However, it should be further noted that: excessively tight winding will lead to a decrease in the gap between turns of the coil, and a decrease in the capacitance between turns of the winding, thereby significantly increasing the leakage current of the equipment, increasing coil loss, and affecting the voltage distribution between turns. Loose windings will cause more problems, such as increased noise, shortened life, and other problems. The present invention proposes a solution to the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a low-noise, high-overload energy storage transformer wind cavity coil winding and a coil winding mechanism. The wind cavity coil in a high-overload transformer is one of the key technologies for reducing transformer noise because its winding method is also one of the key technologies for reducing transformer noise. However, the tightness of the winding will further affect the equipment. For example, if the winding is too tight, the gap between the turns of the coil will be reduced, resulting in leakage and increased coil loss. The problem caused by the winding being too loose is particularly serious.

[0005] The object of the present invention can be achieved by the following technical solutions: a coil winding mechanism for a low-noise, high-overload energy storage transformer wind cavity coil winding, applied in the winding process of the transformer wind cavity coil winding, comprising a coil winding body, a fixed base, a working frame and a head assembly, the head assembly comprising a mounting seat and a sliding plate, the mounting seat being arranged at an output position on the working frame, a reversing sleeve, a hemispherical sleeve and a winding post being arranged in sequence on the sliding plate, a directional support rod and a conductor rod being respectively installed on one side of the reversing sleeve in a direction from top to bottom, and an arc-shaped elastic plate being rotatably installed at one end of the directional support rod;

[0006] A threading arc tube is provided at the center point of the hemispherical sleeve, and the hemispherical sleeve and the winding column perform the winding detection action, and the reversing sleeve, the directional support rod and the conductor rod cooperate with the working frame to perform the winding reversing action.

[0007] It is further configured as follows: a driving push rod assembly is installed in the mounting seat, the sliding plate is slidably connected to the mounting seat through the driving push rod assembly, and a reversing motor is installed on the upper surface of the sliding plate.

[0008] It is further configured as follows: the reversing sleeve is installed on one side of the sliding plate, and two meshing direction-adjusting gears are rotatably installed inside the reversing sleeve, and the output shaft of the reversing motor is connected to one of the direction-adjusting gears.

[0009] It is further configured as follows: the directional support rod and the conductor rod are installed on the outer wall of another direction-adjusting gear, and guide grooves corresponding to the threading arc tubes are opened in the conductor rod and the other direction-adjusting gear.

[0010] It is further configured as follows: a line-pressing elastic plate is rotatably mounted on one side of the arc-shaped elastic plate, and a coil spring assembly is provided at the rotation point between the arc-shaped elastic plate and the directional support rod.

[0011] It is further configured that: the center point of the threading arc tube and the center point of another direction adjustment gear are on the same horizontal axis.

[0012] It is further configured as follows: one-way balloons are installed on the outer position of the threading arc tube and the inner wall position of the hemispherical sleeve, and the one-way balloons are arranged in a ring array along the center point of the threading arc tube.

[0013] It is further configured as follows: a detection component corresponding to the hemispherical sleeve and a take-up motor corresponding to the winding post are installed on the sliding plate; a pressure detection structure corresponding to the one-way balloon is provided in the detection component; and the winding post is connected for rotation via the take-up motor.

[0014] It is further configured as follows: the working frame is provided with a vertical moving structure, a horizontal moving structure and a retractable wire structure corresponding to the head assembly.

[0015] The present invention has the following beneficial effects:

[0016] 1. In view of the operating characteristics of the transformer wind cavity coil winding, the load capacity of the overall coil structure is improved by increasing the number of winding turns, and the operating noise is further reduced by changing the copper wire gap during winding. To this end, a continuous winding action is formed based on the head assembly, specifically utilizing the directional 90-degree rotation action of the steering gear, and further restricting the setting direction between the directional support rod and the conductor rod. During the continuous winding action, the arc-shaped elastic plate on the directional support rod cooperates with the wire pressing elastic plate to continuously squeeze the copper wire after winding. The purpose is to maintain the copper wire after winding, and initially play the role of maintaining the copper wire gap;

[0017] 2. Based on the above content, a hemispherical sleeve and a winding column are further set for the steering process of the steering gear. The hemispherical sleeve indirectly detects the winding force of the copper wire in the winding through the wire arc tube and the one-way balloon, and the winding column is mainly used to cooperate with the continuous winding action to further perform the winding action independently. In the basic winding and releasing action, the copper wire winding force detected by the one-way balloon is further used to rewind and release the wire, thereby changing the copper wire winding force in the continuous winding action. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of the coil winding mechanism of the wind cavity coil winding of the low-noise, high-overload energy storage transformer proposed by the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the wind cavity coil winding of the low-noise and high-overload energy storage transformer proposed by the present invention;

[0021] Figure 3 A top view of the head assembly of the coil winding mechanism of the wind cavity coil winding of the low-noise and high-overload energy storage transformer proposed by the present invention relative to the wind cavity coil winding;

[0022] Figure 4 This is a disassembled view of the head assembly of the coil winding mechanism of the wind cavity coil winding of the low-noise and high-overload energy storage transformer proposed by the present invention;

[0023] Figure 5 This is a cutaway diagram of the commutation sleeve in the coil winding mechanism of the wind chamber coil winding of the low-noise, high-overload energy storage transformer proposed by the present invention;

[0024] Figure 6A partial cross-sectional view of the steering gear in the coil winding mechanism of the wind chamber coil winding of the low-noise, high-overload energy storage transformer proposed by the present invention;

[0025] Figure 7 This is a cross-sectional view of the directional ball sleeve in the coil winding mechanism of the wind cavity coil winding of the low-noise and high-overload energy storage transformer proposed by the present invention.

[0026] In the figure: 1. Coil winding body; 2. Fixed base; 3. Working frame; 4. Mounting seat; 5. Sliding plate; 6. Winding column; 7. Hemispherical sleeve; 8. Detection assembly; 9. Reversing sleeve; 10. Reversing motor; 11. Wire pressing elastic plate; 12. Arc elastic plate; 13. Directional support rod; 14. Drive push rod assembly; 15. Wire rod; 16. Direction adjustment gear; 17. Winding spring assembly; 18. Wire take-up motor; 19. One-way balloon; 20. Threading arc tube. DETAILED DESCRIPTION

[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all 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] Example 1: For the air cavity coil in a high-overload transformer, the winding method is also one of the key technologies for reducing transformer noise. However, the tightness of the winding will further affect the equipment. For example, if the winding is too tight, the gap between the turns of the coil will be reduced, resulting in leakage and increased coil loss. The problem caused by too loose winding is particularly serious. The following technical solution is proposed:

[0029] Reference Figures 1 to 7 The coil winding mechanism for the wind cavity coil winding of the low-noise, high-overload energy storage transformer in this embodiment is applied in the winding process of the wind cavity coil winding of the transformer, and includes a coil winding body 1, a fixed base 2, a working frame 3, and a head assembly. The head assembly includes a mounting seat 4 and a sliding plate 5. The mounting seat 4 is arranged at the output position on the working frame 3. The sliding plate 5 is sequentially provided with a reversing sleeve 9, a hemispherical sleeve 7, and a winding post 6. A directional support rod 13 and a conductor rod 15 are respectively installed on one side of the reversing sleeve 9 in the direction from top to bottom. An arc-shaped elastic plate 12 is rotatably installed at one end of the directional support rod 13.

[0030] A threading arc tube 20 is provided at the inner center point of the hemispherical sleeve 7, and the hemispherical sleeve 7 and the winding column 6 perform the winding detection action. The reversing sleeve 9, the directional support rod 13 and the conductor rod 15 cooperate with the working frame to perform the winding reversing action. A driving push rod assembly 14 is installed in the mounting seat 4. The sliding plate 5 is slidably connected to the mounting seat 4 through the driving push rod assembly 14, and a reversing motor 10 is installed on the upper surface of the sliding plate 5.

[0031] Basic principle: Figure 2 As an example, the transformer wind cavity coil winding structure used in the transformer is basically similar. Its essence is to set up several coil structures based on the principle of magnetic field superposition. In the present invention, only Figure 2 Taking the structural characteristics of the machine as an example, the working frame 3 is essentially composed of a vertical moving structure, a horizontal moving structure and a retracting and releasing structure corresponding to the head assembly. The vertical moving structure and the horizontal moving structure respectively drive the head assembly to move in the up and down and left and right directions, while the retracting and releasing structure performs directional retracting and releasing according to the operation process of the vertical moving structure and the horizontal moving structure. In the winding process, the retracting and releasing structure is specifically Figure 3 For example, the wire rod 15 in the head assembly starts to penetrate from the threading position in the coil winding structure. After the wire rod 15 moves a distance from top to bottom, the angle of the wire rod 13 is changed by the adjusting gear 16, based on the winding reversing action, and further moves a distance. After that, the winding is performed from bottom to top after the winding reversing action. In this way, the winding direction is controlled according to the direction set in the directional support rod 13 and the wire rod 15, and the continuous winding action is continued in this way.

[0032] Example 2: Further explanation of the arc-shaped elastic plate in the specific winding action:

[0033] The reversing sleeve 9 is mounted on one side of the sliding plate 5, and two meshing steering gears 16 are rotatably installed inside the reversing sleeve 9. The output shaft of the reversing motor 10 is connected to one of the steering gears 16. The directional support rod 13 and the wire rod 15 are mounted on the outer wall of the other steering gear 16, and the wire rod 15 and the other steering gear 16 are provided with guide grooves corresponding to the threading arc tube 20. A wire pressing elastic plate 11 is rotatably installed on one side of the arc-shaped elastic plate 12, and a coil spring assembly 17 is provided at the rotation point of the arc-shaped elastic plate 12 and the directional support rod 13.

[0034] Solution Description: Combined Figures 2-4To illustrate, in the initial state, the total length of the arc-shaped elastic plate 12 and the directional support rod 13 is greater than the length of the wire rod 15, and the length of the wire rod 15 is greater than the length of the directional support rod 13, so in the initial winding action, one end of the wire rod 15 is inserted into the threading groove in the winding coil as much as possible, and when the overall head assembly starts to move downward, the arc-shaped elastic plate 12 is blocked by the coil winding and deflected upward, and the coil spring assembly 17 between the arc-shaped elastic plate 12 and the directional support rod 13 is in a compressed state, but it is necessary to keep The arc-shaped elastic plate 12 is also located in the wire threading groove in the winding coil. Specifically, the wire pressing elastic plate 11 on the arc-shaped elastic plate 12 always squeezes the copper wire. If the initial direction of the winding coil is from top to bottom, the directional support rod 13 is located on the upper side of the conductor rod 15, and it is necessary to further limit the bending of the arc-shaped elastic plate 12 in the direction close to one side. Therefore, after the winding is completed for a certain distance through the conductor rod 15, the arc-shaped elastic plate 12 drives the wire pressing elastic plate 11 to squeeze the wound copper wire to maintain the position of the copper wire after winding.

[0035] like Figure 5 As shown, after one of the steering gears 16 is driven to rotate ninety degrees under the action of the reversing motor 10, the winding direction of the copper wire can be changed, forming a winding direction similar to a rectangle. During this process, the directional support rod 13 and the arc-shaped elastic plate 12 are always located in the "subsequent structure" of the conductor rod 15, thereby continuously squeezing the wound copper wire and maintaining the copper wire in the overall continuous winding action, thereby avoiding the problem of increased operating noise due to differences in the copper wire gaps in the overall coil winding.

[0036] Example 3: Supplementary explanation of the copper wire winding force in the continuous winding action:

[0037] A one-way balloon 19 is installed on the outer position of the threading arc tube 20 and the inner wall position of the hemispherical sleeve 7. The one-way balloon 19 is arranged in a circular array along the center point of the threading arc tube 20. The sliding plate 5 is installed with a detection component 8 corresponding to the hemispherical sleeve 7 and a take-up motor 18 corresponding to the winding column 6. The detection component 8 is provided with a pressure detection structure corresponding to the one-way balloon 19. The winding column 6 is rotatably connected through the take-up motor 18. The working frame 3 is provided with a vertical moving structure, a horizontal moving structure and a take-up and release structure corresponding to the head assembly.

[0038] Solution description: As shown in the second embodiment, one of the steering gears is key to changing the winding direction during the winding process. Figure 4 and Figure 6For example, the steering gear 16 is also provided with an opening corresponding to the copper wire, and further maintains that the center point position of the threading arc tube 20 and the center point position of the steering gear 16 are in the same horizontal plane and the same vertical plane. Taking the three-dimensional coordinate system as an example, the center point position of the threading arc tube 20 and the center point position of the steering gear 16 are in the XZ and XY planes, and the winding post 6 is also provided with an opening corresponding to the copper wire. The opening on the winding post 6 and the threading arc tube 20 are only in the XY plane, but the opening 6 on the winding post 6 is always lower than the center point position of the steering gear 16. The unidirectional rotation angle of the steering gear 16 according to the winding direction is 90 degrees, so the conductor rod 15 will not be affected in multiple rotation actions of the steering gear 16.

[0039] and combined with Figure 6 and Figure 7 It is explained that: because the single rotation angle of the steering gear 16 is 90 degrees, the setting value of the one-way balloon 19 is 4, and it is specifically set in the up and down, left and right directions according to the rotation direction of the steering gear 16. Figure 6 Taking the steering gear 16 in the figure as an example, the opening and the center point of the steering gear 16 are on the same XY plane, and are specifically arranged at the left side of the center point of the steering gear 16. Then, in the continuous winding action, the threading arc tube 20 in the hemispherical sleeve 7 is affected by the copper wire and moves to the left position, causing the one-way balloon 19 in the corresponding position to undergo directional deformation. In this regard, the pressure change in the single-core balloon 19 due to the volume change can be further understood as follows: when the copper wire winding force is large in the overall continuous winding action, the copper wire will also drive the threading arc tube 20 to further squeeze the one-way balloon 19 in the corresponding position. It can be directly understood that the pressure change inside the one-way balloon 19 is proportional to the winding force of the copper wire.

[0040] The winding column 6 is further explained: in the initial state, the opening in the winding column 6 is completely parallel to the length direction of the guide rod 15, so the copper wire can continue to pass through the opening in the winding column 6, and the overall winding process is specifically carried out by the retracting and unwinding structure in the working frame 3. However, in the specific process, if the retracting and unwinding action performed by the retracting and unwinding structure is relative to the position, the winding column 6 can be further rotated, resulting in an increase in the winding distance of the copper wire in the winding column 6, thereby increasing the winding force during the copper wire winding process. For this, it is necessary to further limit the rotation angle of the winding column 6 to 0~180°. When the retracting and unwinding action of the retracting and unwinding structure in the working frame 3 is relatively stable, assuming that the angle between the opening direction of the winding column 6 and the guide rod 15 is 30°, and further rotating the angle to 40° increases the winding force. On the contrary, when the rotation angle is 30°, the winding force will be reduced, thereby achieving the purpose of controlling the winding force. The winding force and the number of winding turns are specifically determined according to the process parameters and are not limited in the present invention.

[0041] In summary: In view of the low noise and high load operating characteristics of the transformer coil winding, the number of winding turns is increased and the tightness of the copper wire during winding is controlled. Based on the head assembly, the winding angle is first changed by the reversing gear, and the synchronous wire pressing action is further achieved through the wire pressing elastic plate that cooperates with the directional support rod. The wire pressing action will not interfere with the winding action. The key is: to maintain the specific position of the copper wire after winding in real time in conjunction with the winding action, so as to maintain the copper wire gap after winding. Secondly, the tightness of the copper wire during the winding process is further changed through the hemispherical sleeve, the wire threading arc tube and the winding column. In conjunction with the low noise operating characteristic, the winding tightness is changed on the basis of increasing the number of turns to maintain the structural stability of the overall coil winding.

[0042] The above contents are merely examples and explanations of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they shall fall within the scope of protection of the present invention.

[0043] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0044] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A coil winding mechanism for a low-noise, high-overload energy storage transformer wind cavity coil winding is used in the winding process of the transformer wind cavity coil winding, and is characterized in that: The invention comprises a coil winding body (1), a fixed base (2), a working frame (3) and a head assembly, wherein the head assembly comprises a mounting seat (4) and a sliding plate (5), wherein the mounting seat (4) is arranged at an output position on the working frame (3), and the sliding plate (5) is sequentially provided with a reversing sleeve (9), a hemispherical sleeve (7) and a winding post (6), and a directional support rod (13) and a conductor rod (15) are respectively installed on one side of the reversing sleeve (9) in a direction from top to bottom, and an arc-shaped elastic plate (12) is rotatably installed at one end of the directional support rod (13); A threading arc tube (20) is provided at the center point of the hemispherical sleeve (7), and the hemispherical sleeve (7) and the winding column (6) perform a winding detection action, and the reversing sleeve (9), the directional support rod (13) and the conductor rod (15) cooperate with the working frame to perform a winding reversing action.

2. The coil winding mechanism for the wind chamber coil winding of the low-noise and high-overload energy storage transformer according to claim 1 is characterized in that: A driving push rod assembly (14) is installed in the mounting seat (4), the sliding plate (5) is slidably connected to the mounting seat (4) through the driving push rod assembly (14), and a reversing motor (10) is installed on the upper surface of the sliding plate (5).

3. The coil winding mechanism for the wind chamber coil winding of the low-noise and high-overload energy storage transformer according to claim 2 is characterized in that: The reversing sleeve (9) is installed on one side of the sliding plate (5), and two meshing direction-adjusting gears (16) are rotatably installed inside the reversing sleeve (9). The output shaft of the reversing motor (10) is connected to one of the direction-adjusting gears (16).

4. The coil winding mechanism for the wind chamber coil winding of the low-noise and high-overload energy storage transformer according to claim 3 is characterized in that: The directional support rod (13) and the conductor rod (15) are installed on the outer wall of another direction-adjusting gear (16), and guide grooves corresponding to the threading arc tube (20) are opened in the conductor rod (15) and the other direction-adjusting gear (16).

5. The coil winding mechanism for the wind chamber coil winding of the low-noise and high-overload energy storage transformer according to claim 4 is characterized in that: A line-pressing elastic plate (11) is rotatably mounted on one side of the arc-shaped elastic plate (12), and a coil spring assembly (17) is provided at the rotation point between the arc-shaped elastic plate (12) and the directional support rod (13).

6. The coil winding mechanism for the wind chamber coil winding of the low-noise and high-overload energy storage transformer according to claim 4, characterized in that: The center point of the threading arc tube (20) and the center point of another direction adjustment gear (16) are located on the same horizontal axis.

7. The coil winding mechanism for the wind chamber coil winding of the low-noise and high-overload energy storage transformer according to claim 6, characterized in that: One-way balloons (19) are installed on the outer position of the threading arc tube (20) and the inner wall position of the hemispherical sleeve (7). The one-way balloons (19) are arranged in a ring array along the center point of the threading arc tube (20).

8. The coil winding mechanism for the wind chamber coil winding of the low-noise and high-overload energy storage transformer according to claim 7, characterized in that: The sliding plate (5) is provided with a detection assembly (8) corresponding to the hemispherical sleeve (7) and a take-up motor (18) corresponding to the winding post (6). The detection assembly (8) is provided with a pressure detection structure corresponding to the one-way balloon (19). The winding post (6) is connected to the rotating shaft via the take-up motor (18).

9. The coil winding mechanism for the wind chamber coil winding of the low-noise and high-overload energy storage transformer according to claim 1, characterized in that: The working frame (3) is provided with a vertical moving structure, a horizontal moving structure and a retracting and releasing line structure corresponding to the head assembly.

10. Low noise and high overload energy storage transformer wind cavity coil winding, characterized in that: The invention is prepared by using the coil winding mechanism of the wind cavity coil winding of the low-noise and high-overload energy storage transformer as claimed in any one of claims 1 to 9.

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