Three-phase five-column disc type coil rectifier transformer

Abstract

The utility model discloses a three-phase five-column disc-type coil rectifier transformer which comprises a base, side plates are arranged on the two sides of the top of the base; the lifting frame is arranged at the tops of the side plates, and iron yokes are arranged on the two sides of the lifting frame; the winding assembly is arranged at the top of the base, the winding assembly comprises a winding I with an iron core, a winding II with an iron core and a winding III with an iron core, the two sides of the winding assembly are each provided with an unoccupied ninth conductive plate without a winding, and the upper portions and the lower portions of the ninth conductive plates are connected; the zero-sequence coil structure has the beneficial effects that the zero-sequence coil structure is formed by superposing the disc type coils, and a heat dissipation space is reserved between every two layers of coils, so that heat generated by the transformer is timely eliminated, the temperature rise caused by accumulation in the transformer is avoided, and the heat dissipation efficiency is improved. The ninth current-conducting plates are connected up and down, and zero-sequence magnetic flux forms a circulation loop with the upper and lower yokes through the two outer ninth current-conducting plates.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, concretely is a kind of three-phase five-column disc type coil rectifier transformer. BACKGROUND

[0002] The transformer on market is mostly three-phase three-column transformer, in three-phase three-column transformer, no passage is left for zero sequence magnetic field, so zero sequence magnetic flux can only pass through air gap to return to shell, form zero sequence magnetic flux loop, so the zero sequence impedance of this kind of transformer is all relatively big. UTILITY MODEL CONTENT

[0003] The utility model discloses a three-phase five-column disc type coil rectifier transformer to solve the problems in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of three-phase five-column disc type coil rectifier transformer, comprising:

[0005] Base, the top of base both sides is equipped with side plate;

[0006] Hoist frame, hoist frame is placed in the top of side plate, the both sides of hoist frame are equipped with iron yoke;

[0007] Winding assembly, winding assembly is placed in the top of base, winding assembly includes winding one with iron core, winding two and winding three, the both sides of winding assembly are equipped with one spare electrically conductive plate nine without winding, the upper and lower of electrically conductive plate nine are connected, zero sequence magnetic flux just passes through the circulation loop formed by the outside two electrically conductive plates nine and upper and lower iron yokes.

[0008] As preferred, the winding one, winding two and winding three are all provided with the iron core fixed with base, the outside of iron core is provided with disc type coil from top to bottom equidistantly.

[0009] As preferred, the disc type coil between upper and lower adjacent two is all fixed with insulating part, for separating heat dissipation space.

[0010] As preferred, the winding one, winding two and winding three are provided with multiple electrically conductive plates one equidistantly on one side, for connecting upper and lower disc type coil.

[0011] As preferred, the winding one is provided with electrically conductive plate two and electrically conductive plate three staggered on the side away from electrically conductive plate one, for connecting disc type coil of different heights.

[0012] As preferred, the middle part of winding one, the middle part of winding two and the middle part of winding three are all fixed with electrically conductive plate four, three electrically conductive plates four are connected by electrically conductive plate five, electrically conductive plate five is connected with electrically conductive plate nine, and the middle part of winding three is fixed with electrically conductive plate ten.

[0013] As preferred, the bottom of the winding one is connected with the iron yoke through the conductive plate six, the bottom of the winding two is connected with the iron yoke through the conductive plate seven, and the bottom of the winding three is connected with the iron yoke through the conductive plate eight.

[0014] Compared with the prior art, the utility model has the advantages that: the disc type coil is stacked, and a heat dissipation space is reserved between each layer of coils, so that the heat generated by the transformer can be promptly removed, and temperature rise caused by accumulation of heat in the transformer is avoided; and the upper and lower conductive plates nine are connected, so that the zero sequence magnetic flux forms a circulation loop through the upper and lower iron yokes and the two conductive plates nine. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a structural schematic view of the conductive plate five of the utility model;

[0017] Figure 3 It is a structural schematic view of the insulating part of the utility model.

[0018] In the drawing: 1, base; 2, side plate; 3, hoisting frame; 4, iron yoke; 5, winding one; 6, iron core; 7, disc type coil; 8, insulating part; 9, conductive plate one; 10, conductive plate two; 11, conductive plate three; 12, conductive plate four; 13, conductive plate five; 14, conductive plate six; 15, conductive plate seven; 16, conductive plate eight; 17, conductive plate nine; 18, conductive plate ten; 19, winding two; 20, winding three. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0020] Please refer to Figure 1 , 2As shown in claims 1 and 3, the utility model provides a kind of technical scheme: a kind of three-phase five-column disc type coil rectifier transformer, comprising: base 1, the top of base 1 two sides is equipped with side plate 2;Hoisting frame 3 is fixedly connected in the top of side plate 2, the two sides of hoisting frame 3 are equipped with iron yoke 4;Winding assembly is placed in the top of base 1, winding assembly includes the winding one 5 with iron core 6, winding two 19 and winding three 20, the two sides of winding assembly are equipped with one spare conductive plate nine 17 without winding, and the upper and lower of conductive plate nine 17 are connected, and zero sequence magnetic flux just passes through the circulation loop formed by the outside two conductive plate nine 17 and upper and lower iron yoke 4.

[0021] It should be noted that the utility model discloses a disc type coil superposition structure, and each layer of winding coil is kept with heat dissipation space, and the heat generated by the transformer is promptly removed, temperature rise caused by accumulation in the transformer is avoided, the base 1 provides the support basis of the whole transformer, and stable installation of each component is ensured, the side plate 2 is located at both sides of the top of the base, supports the hoisting frame and bears part mechanical load, the hoisting frame 3 is fixedly connected at the top of the side plate 2, and the function is to bear the iron yoke part of the upper part of the transformer and provide hoisting support, the iron yoke 4 is the magnetic circuit part of the transformer, is made of soft magnetic material (such as silicon steel sheet), is used for guiding magnetic flux and providing low impedance path, the iron yoke is located at both sides of the hoisting frame, and is formed by connecting to form the closed magnetic circuit, the three groups of windings one 5, winding two 19 and winding three 20 can be used for different phases respectively, and three-phase current is borne, the winding one, two and three can be wound on different parts of the iron core 6 respectively, and electromagnetic induction of three-phase electricity is formed, the iron core 6 is composed of high permeability material (such as silicon steel sheet), is used for strengthening the direction of magnetic flux and current induction efficiency, and ensures the high efficiency of the transformer, the conductive plate nine 17 is very unique, one spare conductive plate without winding is arranged on the two sides of the winding assembly, and the conductive plate is used for guiding and forming zero sequence magnetic flux loop, the conductive plate does not participate in the conduction of current, but is specially used for forming magnetic flux loop, and then the working state of the transformer is adjusted, the zero sequence magnetic flux of the zero sequence magnetic flux loop transformer is caused by unbalanced or asymmetric current component of three-phase current, in the case, the existence of zero sequence magnetic flux can cause unnecessary energy loss and reduce the efficiency of the transformer, in the transformer, the conductive plate nine 17 is designed, which connects the upper and lower iron yokes 4, thereby forming a loop, and is specially used for guiding zero sequence magnetic flux, in this way, the zero sequence magnetic flux can flow between the conductive plate and the iron yoke, and does not interfere with the normal work of the main magnetic circuit, the disc type coil superposition structure keeps heat dissipation space between each layer of winding coil, the disc type coil is formed by stacking multiple coil discs together, and the advantage of the structure is that the heat dissipation performance is excellent, the gap between each layer of coil provides a discharge channel for heat, effectively prevents the accumulation of heat, reduces winding insulation aging and performance degradation of the transformer caused by temperature rise, the good heat dissipation design can ensure that the transformer maintains appropriate temperature under long-time high-load operation, thereby improving the service life and stability of the transformer, the temperature rise is effectively avoided, through the design of the disc type coil and heat dissipation space, the transformer can efficiently dissipate heat during operation, and the problem of excessively high temperature caused by heat accumulation is avoided, which not only improves the working efficiency of the equipment, but also reduces the risk of equipment damage caused by excessively high temperature, the zero sequence magnetic flux control effectively manages the loop of zero sequence magnetic flux through the design of the conductive plate, so that the working efficiency of the transformer is higher, and unnecessary energy loss is reduced, the excellent heat dissipation performance of the disc type coil design combines the heat dissipation gap, so that the transformer can maintain low-temperature operation under high working load, prolong the service life of the transformer, and improve the stability thereof.Compact and reasonable structure The structure design of the transformer is more compact, all components are closely matched, reducing space waste, improving overall efficiency; this three-phase five-column disc coil rectifier transformer, due to its unique heat dissipation design and zero sequence magnetic flux loop management, is suitable for high-power, high-efficiency direct current rectification system.

[0022] Please refer to Figure 1 、 2 , 3, winding one 5, winding two 19 and winding three 20 are provided with iron core 6 fixed with base 1, and the outer side of iron core 6 is provided with disc coil 7 equidistantly from top to bottom, and insulation piece 8 is fixed between the upper and lower adjacent two disc coils 7, for separating the heat dissipation space.

[0023] It should be noted that the winding one, winding two and winding three are made of conductive material (such as copper or aluminum wire) and are wound on the iron core in a specific way. Each winding bears different current load or acts on different phase. The iron core 6 is the part of the transformer used to enhance the magnetic field. It is composed of high magnetic permeability material (such as silicon steel sheet), which can effectively transmit the magnetic field generated by the current. The setting of the iron core 6 should play the role of magnetic field conduction, and the iron core helps to establish the necessary electromagnetic field by connecting with the winding. Disc coil is made by winding wire on multiple disc-shaped frames, which is often used to improve the efficiency and heat dissipation performance of winding. Disc coil can better control the shape of the coil than traditional circular or square winding, and has good heat management effect. The disc coils are equidistantly arranged from top to bottom, indicating that these coils are distributed on the outer side of the iron core and are evenly distributed, the purpose is to generate a balanced magnetic field or improve the heat dissipation efficiency. Insulation piece is used to prevent short circuit between windings or components of different potentials. They are sometimes also used to maintain the structural stability between components, and can avoid the risk of electric shock or short circuit. The insulation piece between the upper and lower adjacent two disc coils 7: this indicates that there is an insulation layer between every two disc coils, thereby preventing electrical contact or interference between adjacent coils. The setting of heat dissipation space is very important for the heat management of electrical equipment. The winding generates a lot of heat when working, and the heat dissipation space can effectively help heat dissipation, improve the working efficiency and service life of the equipment. The design of insulation piece is also to increase these spaces to ensure that the heat can be smoothly dissipated.

[0024] Please refer to Figure 1 、 2As shown in FIGS. 3, the one side of winding one 5, winding two 19 and winding three 20 is equidistantly provided with a plurality of conductive plates one 9 for connecting the upper and lower disc type coils 7, the side of winding one 5 away from the conductive plates one 9 is staggered with conductive plates two 10 and conductive plates three 11 for connecting the upper and lower disc type coils 7 at different heights, the middle part of winding one 5, the middle part of winding two 19 and the middle part of winding three 20 are fixedly connected with conductive plates four 12, the three conductive plates four are connected through conductive plates five 13, the conductive plates five 13 are connected with conductive plates nine 17, the middle part of winding three 20 is fixedly connected with conductive plates ten 18, the bottom part of winding one 5 is connected with the iron yoke 4 through conductive plates six 14, the bottom part of winding two 19 is connected with the iron yoke 4 through conductive plates seven 15, and the bottom part of winding three 20 is connected with the iron yoke 4 through conductive plates eight 16.

[0025] It should be noted that the conductive plates one 9 are provided on the one side of winding one 5, winding two 19 and winding three 20, and are equidistantly arranged. The main function of the conductive plates one is to connect the upper and lower disc type coils 7. This connection mode is very important to ensure the uniform distribution of the magnetic field and improve the operation stability of the transformer. Through the design of these conductive plates, it also helps to reduce the electrical interference between the windings. The conductive plates two and the conductive plates three are located on the side of winding one 5 away from the conductive plates one 9, and they are staggered. The purpose of this staggered design is to optimize the magnetic flux distribution inside the transformer and ensure the electrical connection between the upper and lower disc type coils 7 at different heights. Function: These conductive plates help to connect the disc type coils 7 at different heights and ensure smooth flow of current between different heights, while also helping to maintain the mechanical stability of the winding. The middle part of winding one 5, winding two 19 and winding three 20 is fixedly connected with conductive plates four 12, and the three conductive plates four are connected through conductive plates five 13. The function of the conductive plates four is to ensure good electrical connection between the windings, and also plays a certain magnetic field guiding role, helping to build a stable magnetic circuit. By connecting the three conductive plates four through the conductive plates five, it further ensures that the transmission of current is not hindered, maintains the smoothness of the current and the efficiency of the transformer. The conductive plates five are connected with the conductive plates nine, and the conductive plates nine are connected with the upper and lower iron yokes 4. The design of this part is to optimize the loop of zero sequence magnetic flux or stabilize the overall circuit structure of the transformer, ensuring its efficient and stable operation. The middle part of winding three 20 is fixedly connected with the conductive plates ten 18. This connection helps to realize the electrical bridging between the windings and ensures the stable operation of the winding three 20 part. The bottom parts of winding one 5, winding two 19 and winding three 20 are connected with the iron yoke 4 through the conductive plates six, seven and eight respectively. Through the design of these conductive plates, it can ensure that the current can be smoothly conducted to the iron yoke, thereby establishing a stable magnetic field and ensuring the effective operation of the transformer. The iron yoke is used to form a magnetic circuit and is a core part of the transformer or motor. The conductive plates six, seven and eight connect the bottom part of the winding with the iron yoke, thereby forming a complete magnetic flux loop and ensuring that the electrical energy can be effectively converted into magnetic energy.

[0026] In the description of the utility model, need understanding is, the term "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation structure and operation, therefore, cannot be understood as a restriction on the utility model.

[0027] In addition, the terms "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, therefore, the features limited by "first", "second", "third", "fourth" can be explicitly or implicitly include at least one of the features.

[0028] In the utility model, unless otherwise expressly provided and limited, the terms "installation", "arrangement", "connection", "fixing", "screw connection" and so on should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrated, can be mechanically connected, can also be electrically connected, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication or interaction relationship between two elements, unless otherwise expressly limited, for ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] Although the embodiments of the utility model have been shown and described, for ordinary skilled in the art, it can be understood that the embodiments can be changed, modified, replaced and changed in various ways without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and its equivalents.

Claims

1. A three-phase five-leg pancake coil rectifier transformer, characterized by: The utility model relates to a three-phase transformer, including: The base (1) is provided with side plates (2) on both sides of the top of the base (1); The hoisting frame (3) is placed on the top of the side plates (2), and both sides of the hoisting frame (3) are provided with iron yokes (4); The winding assembly is placed on the top of the base (1), and the winding assembly includes winding one (5) with an iron core (6), winding two (19) and winding three (20), both sides of the winding assembly are provided with a conductive plate nine (17) without winding, the upper and lower conductive plate nines (17) are connected, and the zero sequence magnetic flux passes through the two conductive plate nines (17) outside and the upper and lower iron yokes (4) to form a circulation loop.

2. A three-phase five-leg pancake coil rectifier transformer according to claim 1, characterized in that: The winding one (5), the winding two (19) and the winding three (20) are provided with the iron core (6) fixedly connected with the base (1), and the outer side of the iron core (6) is provided with disc type coils (7) at equal intervals from top to bottom.

3. A three-phase five-leg pancake coil rectifier transformer according to claim 2, characterized in that: Insulating parts (8) are fixedly connected between the upper and lower adjacent disc type coils (7) to separate heat dissipation spaces.

4. A three-phase five-leg pancake coil rectifier transformer according to claim 3, characterized in that: The winding one (5), the winding two (19) and the winding three (20) are provided with a plurality of conductive plates one (9) at equal intervals on one side, which are used for connecting the upper and lower disc type coils (7).

5. A three-phase five-leg pancake coil rectifier transformer according to claim 4, characterized in that: The winding one (5) is provided with conductive plate two (10) and conductive plate three (11) on the side away from the conductive plate one (9) in a staggered manner, which are used for connecting disc type coils (7) at different heights.

6. A three-phase five-leg pancake coil rectifier transformer according to claim 5, characterized in that: The middle part of the winding one (5), the middle part of the winding two (19) and the middle part of the winding three (20) are fixedly connected with conductive plate four (12), the three conductive plate fours (12) are connected through conductive plate five (13), the conductive plate five (13) is connected with the conductive plate nine (17), and the middle part of the winding three (20) is fixedly connected with conductive plate ten (18).

7. A three-phase five-leg pancake coil rectifier transformer according to claim 6, characterized in that: The bottom of the winding one (5) is connected with the iron yoke (4) through conductive plate six (14), the bottom of the winding two (19) is connected with the iron yoke (4) through conductive plate seven (15), and the bottom of the winding three (20) is connected with the iron yoke (4) through conductive plate eight (16).

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