Novel butterfly-shaped large-current inductor

Abstract

The novel butterfly-shaped large-current inductor comprises a first magnetic core, a second magnetic core and a magnetic core middle column, the top of the first magnetic core and the top of the second magnetic core are each of a semicircular structure, one end of the magnetic core middle column is connected to the center of the semicircular structure of the top of the first magnetic core, and the other end of the magnetic core middle column is connected to the center of the semicircular structure of the top of the second magnetic core. The magnetic core middle column is provided with uniformly distributed air gaps, the magnetic core middle column is coated with a flat coil, two sides of the flat coil are provided with pins in the same direction, one side of the flat coil is provided with a bottom plate, the bottom plate is provided with insertion grooves matched with the two pins, the cross sections of the pins are rectangular, and the insertion grooves are provided with insertion holes matched with the insertion grooves. Segmented air gaps are divided by fully utilizing the magnetic core performance from the magnetic core structure, and the flat coil winding structure is good in heat dissipation and high in automation degree. Limited packaging space of customers is fully utilized, so that the product is small in packaging, large in current and high in power, and the service power of the product is effectively improved.

Description

Technical Field

[0001] The utility model relates to a current inductor, in particular to a novel butterfly-shaped large current inductor. Background Art

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. The structure of an inductor is similar to that of a transformer, but it has only one winding. An inductor has a certain inductance, and it only blocks the change of current. If there is no current flowing through the inductor, it will try to block the current from flowing through it when the circuit is connected; if there is current flowing through the inductor, it will try to maintain the current unchanged when the circuit is disconnected.

[0003] Traditional PFC inductors use PQ cores and film-wrapped wire structures. Due to the packaging and structure, it is difficult to achieve high power and high current structures. The magnetic flux density is also difficult to increase, the heat dissipation is poor, and the automation is low. Utility Model Content

[0004] The purpose of the utility model is to provide a novel butterfly-shaped high-current inductor to solve the above technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel butterfly-shaped high-current inductor, comprising a first magnetic core, a second magnetic core and a magnetic core center column, the tops of the first magnetic core and the second magnetic core are both semicircular structures, one end of the magnetic core center column is connected to the center of the semicircular structure at the top of the first magnetic core, and the other end is connected to the center of the semicircular structure at the top of the second magnetic core, a uniformly distributed air gap is provided on the magnetic core center column, a flat coil is covered on the magnetic core center column, pins with the same direction are provided on both sides of the flat coil, a bottom plate is provided on one side of the flat coil, a plug-in slot matching with the two pins is provided on the bottom plate, and the cross-section of the pins is a rectangle.

[0006] Preferably, epoxy plates are provided at the connection between the first magnetic core and the second magnetic core and the magnetic core center column.

[0007] Preferably, the cross-section of the epoxy board is slightly larger than the cross-section of the semicircular structure of the first magnetic core and the second magnetic core.

[0008] Preferably, an adhesive layer is provided on the bottom plate, and the bottom plate is connected to the first magnetic core and the second magnetic core through the adhesive layer.

[0009] Preferably, the length of the pin is greater than the length of the first magnetic core and the second magnetic core by about 3 mm.

[0010] Preferably, the first magnetic core is plug-connected or fixedly connected to the second magnetic core.

[0011] Preferably, the base plate is made of epoxy material.

[0012] Preferably, the cross-section of the air gap is circular.

[0013] Preferably, a fixing buckle is provided on the middle column of the magnetic core.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By making full use of the core performance from the core structure to have segmented air gaps, as well as a flat coil winding structure with good heat dissipation and high automation; making full use of the customer's limited packaging space to make the product package small, the current large, the power high, and effectively improve the product's power usage; the bottom plate adopts an epoxy board structure, and is fixed to the core and pin points with epoxy glue. The bonding is firm and can meet the reliability vibration; after the middle column is fixed to the core and the epoxy board, the coil is placed in the magnetic column, keeping a sufficient distance from the core, and the flat coil has enough cross-sectional area to meet the needs of large current. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 is an overall schematic diagram of the novel butterfly-shaped high-current inductor of this embodiment;

[0018] Figure 2 Schematic diagram of the core center column of the novel butterfly-shaped high-current inductor of this embodiment;

[0019] Figure 3 is a schematic diagram of the novel butterfly-shaped high-current inductor of the present embodiment without a base plate installed;

[0020] Figure 4 is a schematic diagram of the bottom plate of the novel butterfly-shaped high-current inductor of this embodiment;

[0021] Figure 5 1 is a side view schematic diagram of the novel butterfly-shaped high-current inductor of this embodiment.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. First magnetic core; 2. Second magnetic core; 3. Center column of magnetic core; 4. Air gap; 5. Flat coil; 6. Fixing buckle; 7. Bottom plate; 8. Plug slot; 9. Pin; 10. Epoxy board; 11. Adhesive layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution: a novel butterfly-shaped high-current inductor, comprising a first magnetic core 1, a second magnetic core 2 and a magnetic core center column 3. The tops of the first magnetic core 1 and the second magnetic core 2 are both semicircular structures. One end of the magnetic core center column 3 is connected to the center of the semicircular structure on the top of the first magnetic core 1, and the other end is connected to the center of the semicircular structure on the top of the second magnetic core 2. A uniformly distributed air gap 4 is provided on the magnetic core center column 3. A flat coil 5 is covered on the magnetic core center column 3. Pins 9 with the same direction are provided on both sides of the flat coil 5. A bottom plate 7 is provided on one side of the flat coil 5. A plug-in slot 8 matching the two pins 9 is provided on the bottom plate 7. The cross-section of the pins 9 is a rectangle.

[0026] Specifically, epoxy plates 10 are provided at the connection points between the first magnetic core 1 and the second magnetic core 2 and the magnetic core center column 3. By providing the epoxy plates 10, the first magnetic core 1 and the second magnetic core 2 are completely isolated from the flat coil 5 to achieve the purpose of insulation.

[0027] Specifically, the cross-section of the epoxy board 10 is slightly larger than the cross-section of the semicircular structure of the first magnetic core 1 and the second magnetic core 2. Through the above arrangement, the epoxy board 10 has a better insulation effect and is also convenient for disassembly and replacement.

[0028] Specifically, an adhesive layer 11 is provided on the bottom plate 7, and the bottom plate 7 is connected to the first magnetic core 1 and the second magnetic core 2 through the adhesive layer 11. Through the above arrangement, the bottom plate 7 is fixed to the first magnetic core 1, the second magnetic core 2 and the pin 9 with epoxy glue, and the bonding is firm to meet the reliability vibration.

[0029] Specifically, the length of the pin 9 is about 3 mm greater than the length of the first magnetic core 1 and the second magnetic core 2. Figure 3 It can be seen that the length of the pin 9 is greater than the length of the first magnetic core 1 and the second magnetic core 2, which is convenient for use and installation.

[0030] Specifically, the first magnetic core 1 and the second magnetic core 2 are plug-connected or fixedly connected. When the first magnetic core 1 and the second magnetic core 2 are plug-connected, they can be more convenient to disassemble and install. When they are fixedly connected, the first magnetic core 1 and the second magnetic core 2 including the core center column are firmly bonded to meet reliability vibration.

[0031] Specifically, the bottom plate 7 is made of epoxy material, and the bottom plate 7 is made of epoxy material to achieve the purpose of insulation.

[0032] Specifically, the cross section of the air gap 4 is circular with a large cross-sectional area, which fully utilizes the performance of the magnetic core to better dissipate heat.

[0033] Specifically, a fixing buckle 6 is provided on the magnetic core center column 3. By providing the fixing buckle 6, the magnetic core center column 3 can meet the reliability vibration.

[0034] A specific application example of this embodiment is:

[0035] A novel butterfly-shaped high-current inductor is installed. After the first magnetic core 1 and the second magnetic core 2 are plugged or fixedly connected, the magnetic core middle column 3 is fixed to the epoxy board 10, and the flat coil 5 is placed in the magnetic core middle column 3, and a sufficient distance is kept from the first magnetic core 1 and the second magnetic core 2. The two pins 9 of the flat coil 5 are connected to the bottom plate 7. The bottom plate 7 is made of epoxy material and is fixed to the first magnetic core 1, the second magnetic core 2 and the pins 9 with epoxy glue. The bonding is firm and can meet the reliability vibration. An adhesive layer 11 is also provided on the bottom plate 7. The adhesive layer 11 can be made of epoxy glue, so that the connection between the bottom plate 7 and the first magnetic core 1 and the second magnetic core 2 is more stable. The first magnetic core 1 and the second magnetic core are semicircular in design. At the same time, the magnetic core middle column 3 adopts a segmented air gap 4, and the middle column has a large cross-sectional area, which fully utilizes the performance of the magnetic core to better dissipate heat.

[0036] 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", "both ends" and the like indicate orientations or positional relationships based on the drawings, which 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 should not be understood as a limitation on the present invention.

[0037] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" 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 utility model according to the specific circumstances.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that modifications may be made to the 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 new type of butterfly high current inductor, Features: It includes a first magnetic core, a second magnetic core and a magnetic core center column. The tops of the first magnetic core and the second magnetic core are both semicircular structures. One end of the magnetic core center column is connected to the center of the semicircular structure on the top of the first magnetic core, and the other end is connected to the center of the semicircular structure on the top of the second magnetic core. The magnetic core center column is provided with a uniformly distributed air gap. The magnetic core center column is covered with a flat coil. Pins with the same direction are provided on both sides of the flat coil. A bottom plate is provided on one side of the flat coil. The bottom plate is provided with a plug-in slot matching with the two pins, and the cross-section of the pins is rectangular.

2. A novel butterfly-shaped high current inductor according to claim 1, Features: Epoxy plates are provided at the connection locations between the first magnetic core and the second magnetic core and the central column of the magnetic core.

3. A novel butterfly-shaped high current inductor according to claim 2, Features: The cross-section of the epoxy board is slightly larger than the cross-section of the semicircular structure of the first magnetic core and the second magnetic core.

4. A novel butterfly-shaped high current inductor according to claim 1, Features: The bottom plate is provided with an adhesive layer, and the bottom plate is connected to the first magnetic core and the second magnetic core through the adhesive layer.

5. A novel butterfly-shaped high current inductor according to claim 1, Features: The length of the pin is about 3 mm greater than the length of the first magnetic core and the second magnetic core.

6. A novel butterfly-shaped high current inductor according to claim 1, Features: The first magnetic core is plug-connected or fixedly connected to the second magnetic core.

7. A novel butterfly-shaped high current inductor according to claim 1, Features: The bottom plate is made of epoxy material.

8. A novel butterfly-shaped high current inductor according to claim 1, Features: The cross section of the air gap is circular.

9. A novel butterfly-shaped high current inductor according to claim 1, Features: A fixing buckle is provided on the middle column of the magnetic core.

Images