Series-parallel inductance device

Abstract

The utility model provides a series-parallel connection inductance device, and relates to the technical field of electrical equipment, conjugate inductors are arranged in an inductance enclosure frame, the conjugate inductors are divided into two rows, one row is a plurality of single-phase small inductors, the other row is a three-phase large inductor, the single phase of each three-phase large inductor and the two single-phase small inductors share one iron yoke, and the two single-phase small inductors share one iron yoke. A single-phase small inductor wire inlet row is led out from each single-phase small inductor, a single-phase small inductor wire outlet row is led out from each single-phase small inductor, the single-phase small inductor wire outlet rows on different single-phase small inductors are connected in pairs to lead out a plurality of wire connecting rows, and a three-phase large inductor wire inlet row is led out from each three-phase large inductor. Through the innovative design of the inductance device, the problems of the traditional inductance device in the aspects of size, electric connection, installation and maintenance and the like are effectively solved, and a new solution is provided for miniaturization, high efficiency and convenience of electrical equipment.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a series-parallel inductor device. Background Technology

[0002] In converter technology applications, inductors play a crucial role as important filtering components in the circuit connecting the entire unit to the external AC terminals (such as the power grid or motor terminals). In traditional designs, each power module typically connects an inductor in series to filter and stabilize the AC current. However, with the continuous development of electrical equipment technology and the increasing demands of the industry, this traditional design has gradually revealed some problems.

[0003] First, in large electrical equipment or high-power-density applications, each power cabinet unit may need to contain multiple power modules with independent drives. This means that if each power module is connected in series with an inductor in the traditional way, then multiple inductors will need to be placed inside the entire power cabinet unit. This not only increases the overall size and weight of the unit, but also brings challenges in installation, maintenance, and heat dissipation.

[0004] Secondly, in terms of electrical connections, the introduction of multiple inductors complicates the connection paths, potentially causing conductor bars to cross. This not only increases the difficulty of electrical design but may also affect the overall performance and reliability of the equipment. Furthermore, the complex electrical connection structure increases maintenance costs and complexity.

[0005] Finally, from the perspective of industry trends and market demand, as the requirements for miniaturization and efficiency of electrical equipment increase, the design of traditional inductor devices can no longer meet the market's stringent requirements for equipment size and weight. At the same time, in order to be compatible with the size and interface standards of previous generations of electrical equipment, the design of new inductor devices needs to minimize size and weight as much as possible while ensuring performance. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a series-parallel inductor device, which solves the problems of complex electrical connections between two power modules and two inductors, large space requirements, potential crossover of busbars, and difficulties in implementation.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A series-parallel inductor device includes an inductor frame, wherein a conjugate inductor is disposed inside the inductor frame. The conjugate inductor is characterized by being divided into two rows: one row consists of multiple single-phase small inductors, and the other row consists of three-phase large inductors. Each single-phase large inductor shares a yoke with two single-phase small inductors. Each single-phase small inductor has a single-phase small inductor input line and a single-phase small inductor output line. The single-phase small inductor output lines on different single-phase small inductors are connected in pairs to form multiple terminal blocks. Each three-phase large inductor has a three-phase large inductor input line, and the three-phase large inductor input line and the terminal blocks are short-circuited one-to-one. Each three-phase large inductor also has a three-phase large inductor output line.

[0009] In a preferred embodiment, the number of single-phase small inductors is 6, and the number of three-phase large inductors is 1.

[0010] In a preferred embodiment, each of the single-phase small inductors has one single-phase small inductor input busbar and one single-phase small inductor output busbar, and each of the three-phase large inductors has one set of three-phase large inductor input busbars and one set of three-phase large inductor output busbars.

[0011] In a preferred embodiment, a protection device is connected in series between the three-phase large inductance input busbar and the terminal block.

[0012] In a preferred embodiment, the protection device is an external fuse.

[0013] In a preferred embodiment, the single-phase small inductor and the three-phase large inductor are positioned vertically, horizontally, or vertically.

[0014] In a preferred embodiment, the input and output line structure of the single-phase small inductor and the three-phase large inductor can be adjusted in the front-back, left-right, or up-down directions.

[0015] In a preferred embodiment, an inductor base is fixedly provided at the bottom of the inductor frame.

[0016] This invention provides a series-parallel inductor device. It has the following advantages:

[0017] Reduced size and increased power density: This inductor integrates two separate inductors into one, significantly reducing the overall size and allowing it to be placed smoothly within a power cabinet unit, thereby reducing the overall size and increasing the power density.

[0018] Simplified electrical connections and space optimization: The inductor has three rows of interface bars on the front, including six single-phase small inductor input bars that can be directly connected to the AC terminals of the two power modules. The electrical connection path is short and the structure is simple and clear, avoiding the problem of conductor bar crossing that may occur in the traditional method, and effectively saving space.

[0019] Weight reduction and ease of installation and maintenance: The conjugate inductor design not only reduces the overall weight of the inductor but also simplifies the mounting structure, allowing it to be installed as a regular inductor. This reduces the number of mounting components and improves the efficiency and convenience of assembly and maintenance.

[0020] In summary, this utility model, through its innovative inductor device design, effectively solves the problems of traditional inductors in terms of size, electrical connection, and installation and maintenance, providing a new solution for the miniaturization, efficiency improvement, and convenience of electrical equipment. Attached Figure Description

[0021] Figure 1 This is a front view structural diagram of Embodiment 1 of the present utility model;

[0022] Figure 2 This is a side view of an embodiment of the present utility model.

[0023] Figure 3 This is a front view schematic diagram of the connection structure in actual use of Embodiment 1 of this utility model;

[0024] Figure 4 This is a schematic diagram of the connection side structure in actual use of Embodiment 1 of this utility model;

[0025] Figure 5 This is the electrical schematic diagram for use of this utility model;

[0026] Figure 6 This is a front view structural diagram of Embodiment 2 of the present utility model;

[0027] Figure 7 This is a side view of the structure of Embodiment 2 of this utility model;

[0028] Figure 8 This is a front view structural diagram of Embodiment 3 of the present utility model;

[0029] Figure 9 This is a side view structural diagram of Embodiment 3 of the present utility model;

[0030] Figure 10 This is a front view structural diagram of Embodiment 4 of this utility model;

[0031] Figure 11 This is a side view structural diagram of embodiment four of the present utility model;

[0032] Figure 12 This is a front view structural diagram of Embodiment 5 of the present utility model;

[0033] Figure 13 This is a side view of the structure of Embodiment 5 of this utility model;

[0034] In the diagram: 1-Inductor frame, 2-Conjugate inductor, 3-Inductor base, 201-Single-phase small inductor, 202-Three-phase large inductor, 204-Single-phase small inductor input busbar, 205-Single-phase small inductor output busbar, 206-Terminal block, 207-Three-phase large inductor input busbar, 208-Three-phase large inductor output busbar, 209-Protection device. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Example 1

[0037] like Figure 1 and Figure 2 As shown, the utility model proposes a series-parallel inductor device, including an inductor frame 1. A conjugate inductor 2 is disposed inside the inductor frame 1. The conjugate inductors 2 are divided into two rows: one row contains multiple single-phase small inductors 201, and the other row contains three-phase large inductors 202. The single-phase small inductors 201 and the three-phase large inductors 202 are distributed vertically, with the single-phase small inductors 201 located in the upper row. Each single phase of the three-phase large inductor 202 shares a yoke with the two single-phase small inductors 201. A single phase is led out from the upper part of the front of each single-phase small inductor 201. Small inductor input line 204, each single-phase small inductor 201 has a single-phase small inductor output line 205 leading out from the lower front part, the single-phase small inductor output lines 205 on different single-phase small inductors 201 are connected in pairs to lead out multiple terminal blocks 206, each three-phase large inductor 202 has a three-phase large inductor input line 207 leading out from the lower front part, the three-phase large inductor input line 207 and the terminal block 206 are short-circuited by conductors in a one-to-one correspondence, and each three-phase large inductor 202 has a three-phase large inductor output line 208 leading out from the rear.

[0038] There are 6 single-phase small inductors 201 and 1 three-phase large inductor 202. Each single-phase small inductor 201 has one single-phase small inductor input busbar 204 and one single-phase small inductor output busbar 205. The three-phase large inductor has one set of three-phase large inductor input busbar 207 and one set of three-phase large inductor output busbar 208.

[0039] A protection device 209 is connected in series between the three-phase large inductor input line 207 and the terminal block 206. The protection device 209 is an external fuse.

[0040] An inductor base 3 is fixedly installed at the bottom of the inductor frame 1.

[0041] like Figure 3 , Figure 4 and Figure 5 As shown, the overall inductor frame 1 and mounting structure of this utility model are designed as a single inductor structure. The single-phase small inductor input busbars 204 of the six single-phase small inductors 201 can be connected to the AC terminals of the two power modules respectively, and the three-phase large inductor output busbars 208 can be connected to the external AC terminals. The two-in-one upper and lower conjugate inductor device has a much smaller size, which meets the requirement of placing it in a power cabinet unit, which is equivalent to reducing the overall volume and increasing the power density. The six AC terminals of the two power modules directly correspond to the six single-phase small inductor input busbars 204 on the upper front of the inductor device, which is simple in electrical connection, short path, small space requirement, clear structure and no intersection. The upper and lower conjugate inductor design reduces the overall weight of the inductor device, and only needs to be installed in the form of a normal inductor. The number of mounting structure components is reduced, and the assembly and maintenance are simple and efficient.

[0042] Example 2

[0043] like Figure 6 and Figure 7 As shown, based on Embodiment 1, the single-phase small inductor 201 and the three-phase large inductor 202 are arranged in a front-to-back configuration, while the other structures remain the same as in Embodiment 1. This is to accommodate different electrical connection requirements and specific installation spaces.

[0044] Example 3

[0045] like Figure 8 and Figure 9 As shown, based on Embodiment 2, the left and right positions of the single-phase small inductor 201 and the three-phase large inductor 202 are interchanged, while the other structures remain the same as in Embodiment 2. This is to adapt to different electrical connection requirements and specific installation spaces.

[0046] Example 4

[0047] like Figure 10 and Figure 11 As shown, based on Embodiment 1, the single-phase small inductor 201 and the three-phase large inductor 202 are arranged in a front-to-back configuration, while the other structures remain the same as in Embodiment 1. This is to accommodate different electrical connection requirements and specific installation spaces.

[0048] Example 5

[0049] like Figure 12 and Figure 13 As shown, based on Embodiment 4, the left and right positions of the single-phase small inductor 201 and the three-phase large inductor 202 are interchanged, while the other structures remain the same as in Embodiment 4. This is to adapt to different electrical connection requirements and specific installation spaces.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A series-parallel inductive device comprising an inductive enclosure (1) inside which a conjugated inductor (2) is arranged, characterized in that, The conjugate inductor (2) is divided into two rows, one row is a plurality of single-phase small inductors (201), and the other row is a three-phase large inductor (202), the single-phase of each three-phase large inductor (202) shares an iron yoke with two single-phase small inductors (201), each single-phase small inductor (201) is respectively led out a single-phase small inductor incoming line row (204), each single-phase small inductor (201) is respectively led out a single-phase small inductor outgoing line row (205), the single-phase small inductor outgoing line rows (205) on different single-phase small inductors (201) are connected in pairs to lead out a plurality of connection rows (206), each three-phase large inductor (202) leads out a three-phase large inductor incoming line row (207), the three-phase large inductor incoming line rows (207) and the connection rows (206) are one-to-one corresponding for short-circuiting of conductive bodies, and each three-phase large inductor (202) leads out a three-phase large inductor outgoing line row (208).

2. A series-parallel inductive device according to claim 1, characterized in that: The number of the single-phase small inductors (201) is six, and the number of the three-phase large inductors (202) is one.

3. A series-parallel inductive device according to claim 2, characterized in that: Each single-phase small inductor (201) is respectively led out one single-phase small inductor incoming line row (204) and one single-phase small inductor outgoing line row (205), and the three-phase large inductor is respectively led out one group of three-phase large inductor incoming line rows (207) and one group of three-phase large inductor outgoing line rows (208).

4. The series-parallel inductive device of claim 1, wherein: The three-phase large inductor incoming line rows (207) and the connection rows (206) are connected in series with a protection device (209).

5. The series-parallel inductive device of claim 1, wherein: The single-phase small inductors (201) and the three-phase large inductors (202) are arranged in an up-down, front-back or left-right distribution position.

6. A series-parallel inductive device according to claim 1, wherein: The incoming and outgoing line structures of the single-phase small inductors (201) and the three-phase large inductors (202) are adjusted in the front-back, left-right or up-down direction.

7. A series-parallel inductive device according to any one of claims 1 to 6, characterized in that: The inductor surrounding frame (1) is fixedly provided with an inductor base (3) at the bottom.

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