Large-current inductance filtering device

Abstract

The utility model relates to the technical field of large-current inductance filtering, and discloses a large-current inductance filtering device, which comprises a post-rectification positive pole connecting plate, four groups of filtering inductors are symmetrically arranged on the back of the post-rectification positive pole connecting plate, each filtering inductor is provided with an inductor output end, and the inductor output end is connected with the post-rectification positive pole connecting plate. Insulation connecting blocks are arranged among the multiple filter inductors, inductor output connecting pieces are jointly connected among the multiple inductor output ends, and an output anode copper plate is connected to the rectified anode connecting plate. The filter has the characteristics of compact structure, good heat dissipation performance and remarkable filtering effect. By adopting the magnetic core material with high magnetic conductivity and the optimized heat dissipation design, the inductor can effectively deal with the heat management problem under large current, meanwhile, the size of the inductor is kept small, and the inductor can be conveniently integrated into a compact power supply system. According to the utility model, high efficiency and low loss are ensured, stable power supply output can be provided, and strict requirements of modern electronic systems on electromagnetic compatibility are met.

Description

Technical Field

[0001] The utility model relates to the technical field of large current inductance filtering, in particular to a large current inductance filtering device. Background Art

[0002] In modern electronic systems, high-current inductive filtering technology is becoming increasingly important as power density increases and electromagnetic compatibility requirements rise. As an essential component in power supply circuits, inductive filters are primarily used to suppress high-frequency noise in the current and ensure stable power output. Traditional inductive filters typically consist of a ferrite core and winding coils. However, as current demands increase, these traditional inductors face numerous challenges in terms of size, efficiency, and thermal management.

[0003] First, high-current inductors must withstand high current densities, requiring them to have sufficient saturation current and low DC resistance (DCR) to minimize power loss and heat generation. Second, as current increases, the inductor's core material may saturate, causing the inductance value to decrease and rendering it ineffective for filtering. Furthermore, high-current inductors generate significant heat during operation, necessitating effective heat dissipation to maintain their performance and lifespan.

[0004] Existing high-current inductor filtering technologies include employing multi-strand parallel windings, using high-permeability core materials, and designing specialized heat dissipation structures. However, these approaches often increase the complexity and cost of the inductor and may not fully address the thermal management issues associated with high currents.

[0005] Therefore, based on the above technical problems, it is necessary for those skilled in the art to develop a high-current inductor filter device. Utility Model Content

[0006] The purpose of the utility model is to provide a large current inductor filter device to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A technical solution for a high-current inductor filter device includes a positive electrode connection plate after rectification, four groups of filter inductors are symmetrically arranged on the back of the positive electrode connection plate after rectification, each filter inductor is provided with an inductor output terminal, an insulating connection block is provided between the multiple filter inductors, and the multiple inductor output terminals are commonly connected to an inductor output connector, and an output positive copper plate is connected to the positive electrode connection plate after rectification.

[0009] As a preferred technical solution, the insulating connecting block is made of a high-temperature resistant insulating material to ensure that no short circuit occurs between the inductors when a large current passes through.

[0010] As a preferred technical solution, the output positive copper plate and the rectified positive connecting plate are fixedly connected by welding or crimping.

[0011] As a preferred technical solution, the four groups of filter inductors are used to provide a more efficient current filtering effect to reduce ripple and noise in the current. Each filter inductor is made of a high magnetic permeability material to improve its inductance and filtering performance.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This utility model is a high-current inductor filter device featuring a compact structure, excellent heat dissipation, and significant filtering effects. By utilizing a high-permeability core material and an optimized heat dissipation design, this device effectively addresses thermal management issues under high current conditions while maintaining a compact inductor design for easy integration into compact power supply systems. While ensuring high efficiency and low losses, this device also provides stable power output, meeting the stringent electromagnetic compatibility requirements of modern electronic systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a large current inductor filter device;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of a large current inductor filter device;

[0016] Figure 3 This is a schematic diagram of the back three-dimensional structure of a large current inductor filter device.

[0017] In the accompanying drawings: 1. positive electrode connecting plate after rectification; 2. filter inductor; 3. inductor output end; 4. insulating connecting block; 5. inductor output connector; 6. output positive copper plate. DETAILED DESCRIPTION

[0018] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0019] like Figure 1 、 Figure 2 and Figure 3As shown, the present invention provides a technical solution for a high-current inductor filter device: it includes a post-rectification positive electrode connection plate 1, with four sets of filter inductors 2 symmetrically arranged on the back of the connection plate 1. Each filter inductor 2 is provided with an inductor output terminal 3. Insulating connecting blocks 4 are provided between the multiple filter inductors 2 to prevent short circuits between the inductors. An inductor output connector 5 is commonly connected between the multiple inductor output terminals 3. An output positive copper plate 6 is connected to the post-rectification positive electrode connection plate 1.

[0020] The insulating connecting block 4 is made of a high-temperature resistant insulating material to ensure that there is no short circuit between the inductors when a large current passes through. The high-temperature resistant insulating material can be polyimide, polytetrafluoroethylene (PTFE) or other materials with high heat resistance.

[0021] The output positive copper plate 6 is fixedly connected to the rectified positive connection plate 1 by welding or crimping, which can ensure the stability and conductivity of the connection.

[0022] The four filter inductors 2 provide more efficient current filtering, reducing ripple and noise. Each filter inductor 2 is made of a high-permeability material to improve its inductance and filtering performance. The high-permeability material can be nanocrystalline, ferrite, or other high-permeability materials.

[0023] In practical applications, the device can be integrated into a power supply system to provide a stable power output. Due to its compact design, it is particularly suitable for use in space-constrained environments, such as compact power supply systems or high-power-density electronic devices.

[0024] In summary, this device, through optimized structural design and material selection, not only improves filtering effectiveness but also addresses the challenges faced by high-current inductors in terms of size, efficiency, and thermal management. Through these technological improvements, the device provides a highly efficient and reliable inductor filtering solution suitable for applications in modern electronic systems that demand high electromagnetic compatibility and power density.

[0025] The working principle and use process of the present invention are as follows: After assembling the various components of the present invention in sequence, all the working steps can be completed by working in accordance with the above implementation methods in sequence according to actual needs.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0028] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0029] While the embodiments described above are based on the present invention, these embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Clearly, many modifications and variations are possible based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better utilize the present invention and its modifications and uses. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high current inductor filter device, characterized in that: The invention comprises a positive electrode connection plate (1) after rectification, wherein four groups of filter inductors (2) are symmetrically arranged on the back of the positive electrode connection plate (1), each filter inductor (2) is provided with an inductor output terminal (3), an insulating connection block (4) is provided between the plurality of filter inductors (2), an inductor output connector (5) is commonly connected between the plurality of inductor output terminals (3), and an output positive copper plate (6) is connected to the positive electrode connection plate (1).

2. A high current inductive filter device according to claim 1, characterized in that: The insulating connection block (4) is made of a high-temperature resistant insulating material to ensure that no short circuit occurs between the inductors when a large current passes through.

3. The high current inductive filter device according to claim 1, characterized in that: The output positive electrode copper plate (6) and the rectified positive electrode connecting plate (1) are fixedly connected by welding or crimping.

4. The high current inductive filter device according to claim 1, characterized in that: The four groups of filter inductors (2) are used to provide a more efficient current filtering effect to reduce ripple and noise in the current. Each filter inductor (2) is made of a high magnetic permeability material to improve its inductance and filtering performance.

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