Combined reactor

Abstract

The utility model relates to a combined reactor. The combined reactor comprises four groups of single-phase reactors, a base and a coaming, the four groups of single-phase reactors are mounted in the coaming, and the four groups of single-phase reactors and the coaming are mounted on the base; wherein each group of single-phase reactors comprises two or more than two center pillar iron cores, coils wound on the center pillar iron cores, an upper iron yoke, a lower iron yoke, a top plate and a connecting bolt; the upper iron yoke and the lower iron yoke are installed at the two ends of the two or more center pillar iron cores respectively, and the upper iron yoke and the lower iron yoke form a magnetic path with the two or more center pillar iron cores. A lower clamping piece is arranged on the lower iron yoke, a top plate is arranged on the upper iron yoke, and a connecting bolt is connected with the top plate and the lower clamping piece. The top plates of the four groups of single-phase reactors are sequentially connected through top plate connecting pieces; the busbar is connected with the wire inlet end and the wire outlet end of the coil, and the coaming is provided with a mounting hole for accommodating the busbar. The inductor solves the problems that an existing inductor is inconvenient to disassemble and assemble and poor in heat dissipation effect.

Description

Technical Field

[0001] The present application belongs to the technical field of inductor component design, and in particular, relates to a combined inductor. Background Art

[0002] In the prior art, single-phase reactors are mainly fixed by using a base separately for each reactor, and the two coils are connected by a busbar. In addition, its core part is composed of cut silicon steel sheets. Although this design may be sufficient for use in some applications, it has a series of problems. First, since each reactor requires a separate base, it occupies a large space during installation. Secondly, the use of a busbar to connect the two coils not only further increases the waste of space, but also may affect the overall structural compactness and the aesthetics of the system. In addition, the existing single-phase reactor design does not take into account the utilization of wind, because they do not have a fence to guide and utilize the wind flow, which limits its performance in heat dissipation. Finally, when encountering space constraints or under conditions with high ripple content, the single-phase reactor using cut silicon steel sheets as the core cannot meet its temperature rise conditions, which limits its use in specific applications. Therefore, there is a need for a more efficient, compact and stable single-phase reactor design that can work under different conditions. Utility Model Content

[0003] In view of the deficiencies existing in the related art, the utility model provides a combined reactor to solve the technical problems of poor heat dissipation and inconvenient assembly and disassembly of existing inductive devices.

[0004] In one possible embodiment, the combined inductor includes four groups of single-phase inductors, a base and a enclosure; the four groups of single-phase inductors are installed in the enclosure, and the four groups of single-phase inductors and the enclosure are installed on the base; wherein each group of single-phase inductors includes two or more middle column cores, a coil wound on the middle column core, an upper iron yoke, a lower iron yoke, a top plate and connecting bolts; the upper iron yoke and the lower iron yoke are respectively installed at both ends of the two or two middle column cores to form a magnetic path with the two or more middle column cores; a lower clamp is provided on the lower iron yoke, the top plate is provided on the upper iron yoke, and the connecting bolts connect the top plate and the lower clamp; the top plates of the four groups of single-phase inductors are connected in sequence through the top plate connectors; the busbar is connected to the incoming and outgoing ends of the coil, and a mounting hole for accommodating the busbar is provided on the enclosure.

[0005] In a possible implementation manner, the outermost layers of the two coils of each single-phase reactor are connected by welding.

[0006] In a possible implementation manner, two or more positioning pins are provided on the base, and a positioning hole is provided on the lower iron yoke, and the positioning pin is placed in the positioning hole.

[0007] In a possible implementation manner, each group of single-phase reactors includes two middle-column iron cores, and an upper iron yoke and a lower iron yoke are respectively connected to two ends of the two middle-column iron cores.

[0008] In a possible implementation, each group of single-phase reactors includes two connecting bolts, which are respectively placed on both sides of the upper iron yoke and the lower iron yoke. Connecting holes are provided on the top plate and the two lower clamps, and the connecting bolts are installed in the connecting holes.

[0009] In a possible implementation manner, four groups of single-phase reactors are connected in parallel, and enclosure plates are installed around the four groups of single-phase reactors.

[0010] In a possible implementation manner, the lower iron yoke is detachably connected to the base or connected by welding.

[0011] In a possible implementation manner, the middle column iron core, the upper iron yoke and the lower iron yoke are made of iron silicon material.

[0012] In a possible implementation, the base includes two bottom plates arranged in parallel, the two bottom plates are respectively connected to two ends of each group of single-phase reactors, and the space between each two adjacent single-phase reactors between the two bottom plates forms a ventilation air path.

[0013] Based on the above technical scheme, the combined inductor of the embodiment of the utility model combines four groups of single-phase inductors together, which can provide a high degree of flexibility and configuration capability; the design of each group of single-phase inductors adopts two or more middle column iron cores and corresponding coils, upper and lower iron yokes, and a top plate and connecting bolts. This structure not only enhances the structural stability of the inductor, but also optimizes the magnetic path and improves its electrical performance; the lower clamp on the lower iron yoke and the top plate are connected by connecting bolts to ensure a firm connection between the components, and the top plate is connected by the top plate connector, which further enhances the overall structural integrity; the inductor structure is compact, and the installation and maintenance in the power system are simpler and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 A schematic diagram of the exploded structure of a single-phase reactor of a combined reactor in accordance with an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the assembly structure of a combined reactor in one embodiment of the utility model;

[0017] Figure 3This is a schematic diagram of the assembly structure of a combined reactor according to another embodiment of the utility model;

[0018] Figure 4 It is an enlarged schematic diagram of the lower iron yoke and the base installation structure of one embodiment of the utility model;

[0019] Figure 5 The figure is a schematic structural diagram of a lower iron yoke according to an embodiment of the utility model.

[0020] In the figure:

[0021] 1. Coil; 2. Busbar; 3. Middle column core; 4. Upper iron yoke; 5. Lower iron yoke; 6. Top plate; 7. Base; 8. Top plate connector; 9. Enclosure; 10. Lower clamp; 11. Locating pin; 12. Locating hole; 13. Connecting bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0023] In the description of the present application, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0024] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In order to solve the technical problems of inconvenient assembly and disassembly of inductor components and poor heat dissipation in the prior art, the present application provides a combined inductor.

[0027] See also Figure 1 , Figure 2 and Figure 3 In a possible implementation manner, the combined reactor includes: four groups of single-phase reactors, a base 7 and a panel 9; the four groups of single-phase reactors are installed in the panel 9, and the four groups of single-phase reactors and the panel 9 are installed on the base 7; wherein each group of single-phase reactors includes two or more middle column cores 3, a coil 1 wound on the middle column core 3, an upper iron yoke 4, a lower iron yoke 5, a top plate 6 and a connecting bolt 13; the upper iron yoke 4 and the lower iron yoke 5 are respectively installed at both ends of two or more middle column cores 3 to form a magnetic path with the two or more middle column cores 3; a lower clamp 10 is provided on the lower iron yoke 5, a top plate 6 is provided on the upper iron yoke 4, and a connecting bolt 13 connects the top plate 6 and the lower clamp 10; the top plates 6 of the four groups of single-phase reactors are connected in sequence through the top plate connector 8; the busbar 2 is connected to the incoming and outgoing ends of the coil 1, and a mounting hole for accommodating the busbar 2 is provided on the panel 9.

[0028] In the above scheme, the design of this combined reactor allows it to adapt to the diverse needs of the power system. By combining four groups of single-phase reactors together and sharing a base 7, it saves space and size and can provide a high degree of flexibility and configuration capabilities. The design of each group of single-phase reactors adopts two or more middle column cores 3 and corresponding coils 1, upper and lower iron yokes 4, 5, top plate 6 and connecting bolts 13. This structure not only enhances the structural stability of the reactor, but also optimizes the magnetic path and improves its electrical performance. The design of the lower clamp 10 on the lower iron yoke 5 and the connecting bolts 13 on the top plate 6 ensures a firm connection between the components, and the top plate 6 further enhances the overall structural integrity through the design of the connector 8. In addition, the mounting holes provided on the enclosure 9 facilitate the connection of the busbar 2. Such a design makes the installation and maintenance of the reactor in the power system easier and more efficient.

[0029] See also Figure 4 and Figure 5 In a possible implementation manner, the outermost layers of the two coils 1 of each single-phase reactor are connected by welding.

[0030] In the above-mentioned embodiment, the coil of the single-phase reactor is wound using aluminum foil as a raw material. After the cut surfaces of the outermost layers of the aluminum foil of the two coils are pasted together, they are welded using argon arc welding to form a whole. The outermost layers of the two coils 1 of each single-phase reactor are connected by welding technology. This improvement improves the electrical connection reliability and durability of the coil 1 and saves material costs. Welding, as a firm connection method, ensures that the connection between the coils 1 will not loosen due to vibration or temperature changes during the long-term operation of the reactor, thereby ensuring the stability and safety of the reactor. In addition, the use of welding connection also simplifies the manufacturing process and improves production efficiency. In a possible embodiment, two or more positioning pins 11 are provided on the base 7, and a positioning hole 12 is provided on the lower iron yoke 5, and the positioning pin 11 is placed in the positioning hole 12.

[0031] In the above embodiment, by setting the positioning pin 11 on the base 7 and correspondingly setting the positioning hole 12 on the lower iron yoke 5, the positioning pin 11 is placed in the positioning hole 12, and the reactor is easy to install; this design greatly improves the assembly accuracy and stability of the reactor assembly. The coordinated use of the positioning pin 11 and the positioning hole 12 not only ensures the correct position of each component during the assembly process, but also prevents the position deviation caused by factors such as vibration during the operation of the reactor, thereby ensuring the long-term stable operation of the reactor.

[0032] In a possible implementation manner, each group of single-phase reactors includes two middle-column iron cores 3 , and an upper iron yoke 4 and a lower iron yoke 5 are respectively connected to two ends of the two middle-column iron cores 3 .

[0033] In the above embodiment, by using two middle column cores 3 and connecting the upper and lower iron yokes 4, 5 to the two ends of the two middle column cores 3, such a structural design not only optimizes the magnetic path and reduces the magnetic resistance of the magnetic path, but also enhances the structural stability and durability of the reactor. The use of two middle column cores 3 increases the inductance value and current carrying capacity of the reactor, so that it can adapt to higher power system requirements. In addition, this design also helps to reduce electromagnetic interference and improve the operating efficiency and reliability of the reactor.

[0034] In a possible implementation, each group of single-phase reactors includes two connecting bolts 13, which are respectively placed on both sides of the upper iron yoke 4 and the lower iron yoke 5, and connecting holes are set on the top plate 6 and the two lower clamps 10, and the connecting bolts 13 are installed in the connecting holes.

[0035] In the above embodiment, the tight fixation of the various components is achieved by using two connecting bolts 13 and the connection holes preset on the upper iron yoke 4, the lower iron yoke 5, the top plate 6 and the lower clamp 10. This design not only ensures the stability of the reactor in long-term operation, but also facilitates quick disassembly and reassembly during maintenance. The application of the connecting bolts 13 improves the mechanical strength of the entire reactor and ensures the reliability and durability of the reactor under different operating conditions, including high temperature, high humidity and vibration environments.

[0036] In a possible implementation manner, four groups of single-phase reactors are connected in parallel, and the enclosure 9 is installed around the four groups of single-phase reactors.

[0037] In the above embodiment, the design of connecting four groups of single-phase reactors side by side and wrapped by the enclosure 9 not only optimizes the spatial layout of the reactor and improves its overall compactness and aesthetics, but also the arrangement of the enclosure 9 increases the mechanical protection of the reactor and prevents the influence of external physical damage on the reactor. In addition, this layout is conducive to heat dissipation, ensuring the temperature control of the reactor when it is running under high load, thereby extending the service life of the reactor.

[0038] In a possible implementation manner, the lower iron yoke 5 and the base 7 are detachably connected or connected by welding.

[0039] In the above embodiment, two options of detachable connection or welding connection between the lower iron yoke 5 and the base 7 are provided, and such a design increases the flexibility of installation and maintenance of the reactor. The detachable connection facilitates the transportation and on-site assembly of the reactor, while the welding connection provides higher mechanical stability and structural strength. According to different application requirements and on-site conditions, the most suitable connection method can be selected to ensure the reliability and long-term stable operation of the reactor.

[0040] In a possible implementation manner, the middle column core 3, the upper iron yoke 4 and the lower iron yoke 5 are made of iron silicon material.

[0041] In the above embodiment, iron silicon material is selected as the material of the middle column core 3, the upper iron yoke 4 and the lower iron yoke 5. This material has good magnetic properties and low loss characteristics, which can effectively improve the efficiency and performance of the reactor; the iron core uses iron silicon material, which can reduce the design space size; the use of iron silicon material not only reduces the energy consumption of the reactor, but also reduces the temperature rise of the magnetic material, thereby facilitating the stable operation of the reactor under high load conditions. In addition, iron silicon material has good mechanical strength and corrosion resistance, which further improves the reliability and durability of the reactor.

[0042] In a possible implementation, the base 7 includes two bottom plates arranged in parallel, the two bottom plates are respectively connected to the two ends of each group of single-phase reactors, and the space between each two adjacent single-phase reactors between the two bottom plates forms a ventilation air path.

[0043] In the above embodiment, an effective ventilation path is formed by designing two parallel bottom plates and connecting them to the two ends of each group of single-phase reactors. This ventilation design is conducive to the heat dissipation of the reactor, especially in high load or high temperature environment, which can effectively prevent the reactor from overheating and ensure its stable and reliable operation. The setting of the ventilation path not only improves the heat dissipation efficiency of the reactor, but also helps to reduce the accumulation of dust and other pollutants, reduce maintenance costs, and extend the service life of the reactor.

[0044] The combined reactor of any of the above embodiments can be used in the power converter cabinet of the hydrogen production industry, for example, as a buck inductor in a four-phase interleaved circuit. When the buck step-down circuit switch is turned on, the inductor plays a role of reducing the voltage, and when the buck step-down circuit switch is turned off, the inductor plays a role of energy transfer. The setting of the enclosure fully improves the wind rate utilization. Compared with the traditional single-phase reactor, the combined reactor is small in size and occupies less space, so that four single-phase reactors can be made into a "four-phase" reactor, making the reactor integrated.

[0045] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0046] The above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present application, which should be included in the scope of the technical solution requested for protection in the present application.

Claims

1. A combined reactor, characterized in that: include: It comprises four groups of single-phase reactors, a base (7) and a panel (9); the four groups of single-phase reactors are installed in the panel, and the four groups of single-phase reactors and the panel are installed on the base; Each group of single-phase reactors comprises two or more middle column iron cores (3), a coil (1) wound on the middle column iron cores, an upper iron yoke (4), a lower iron yoke (5), a top plate (6) and connecting bolts (13); the upper iron yoke (4) and the lower iron yoke (5) are respectively installed at both ends of the two or more middle column iron cores (3) to form a magnetic path with the two or more middle column iron cores (3); A lower clamp (10) is arranged on the lower iron yoke (5), a top plate (6) is arranged on the upper iron yoke, and connecting bolts connect the top plate (6) and the lower clamp (10); The top plates of the four groups of single-phase reactors are connected in sequence via top plate connectors (8); The busbar (2) is connected to the incoming and outgoing terminals of the coil, and a mounting hole for accommodating the busbar is arranged on the enclosure.

2. The combined reactor according to claim 1, characterized in that: The outermost layers of the two coils of each single-phase reactor are connected by welding.

3. The combined reactor according to claim 2, characterized in that: Two or more positioning pins (11) are arranged on the base (7), a positioning hole (12) is arranged on the lower iron yoke (5), and the positioning pins are placed in the positioning hole (12).

4. The combined reactor according to claim 3, characterized in that: Each group of single-phase reactors comprises two middle column iron cores (3), and an upper iron yoke (4) and a lower iron yoke (5) are respectively connected to two ends of the two middle column iron cores (3).

5. The combined reactor according to claim 4, characterized in that: Each group of single-phase reactors comprises two connecting bolts (13), which are respectively arranged on both sides of an upper iron yoke (4) and a lower iron yoke (5), and connecting holes are arranged on a top plate (6) and two lower clamps (10), in which the connecting bolts (13) are installed.

6. The combined reactor according to claim 5, characterized in that: Four groups of single-phase reactors are connected in parallel, and enclosure plates (9) are installed around the four groups of single-phase reactors.

7. The combined reactor according to claim 6, characterized in that: The lower iron yoke (5) and the base (7) are detachably connected or connected by welding.

8. The combined reactor according to claim 7, characterized in that: The middle column iron core (3), the upper iron yoke (4) and the lower iron yoke (5) are made of iron silicon material.

9. The combined reactor according to claim 8, characterized in that: The base (7) comprises two bottom plates arranged in parallel, the two bottom plates are respectively connected to the two ends of each group of single-phase reactors, and the space between each two adjacent single-phase reactors between the two bottom plates forms a ventilation air path.

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