Inductor structure

Abstract

The invention discloses an inductor structure which comprises an inductor, the inductor comprises a magnetic core, N groups of short pin windings and M groups of long pin windings, the N groups of short pin windings and the M groups of long pin windings are wound on the magnetic core, and M and N are positive integers; only one side of the inductor shell is provided with a mounting port, and the magnetic core is placed in the inductor shell through the mounting port; the first fixing support covers the mounting opening, N pairs of short pin insertion holes are formed in the first fixing support, and each pair of short pin insertion holes is used for fixing two short pins of one group of short pin winding; the second fixing support is arranged in the direction far away from the first fixing support and the magnetic core, M pairs of long pin inserting holes are formed in the second fixing support, and each pair of long pin inserting holes is used for fixing two long pins of one set of long pin winding. Therefore, the on-board area can be effectively reduced, and the on-board height can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic components, and in particular to an inductor structure. Background Art

[0002] Inductors are key components that realize filtering functions in power electronic products such as high-power storage converters.

[0003] In related technologies, plug-in inductors have defects such as large board area and high board height. However, the internal space of power electronic products such as high-power energy storage converters is limited, and various devices are compactly arranged. Therefore, this inductor structure is difficult to meet the needs of power electronic products such as high-power energy storage converters. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an inductor structure, which adopts a first fixing bracket and a second fixing bracket to fix and install the pins of the short-pin winding and the long-pin winding respectively, which can effectively reduce the waste in the lateral direction during the installation of the inductor and effectively reduce the board area. In addition, the inductor is installed upside down in the inductor shell, thereby effectively reducing the height on the board.

[0005] The technical solution adopted in the present invention is as follows:

[0006] An inductor structure comprises: an inductor, the inductor comprising a magnetic core, N groups of short-pin windings and M groups of long-pin windings, wherein the N groups of short-pin windings and the M groups of long-pin windings are all wound on the magnetic core, and M and N are both positive integers; an inductor shell, the inductor shell having a mounting opening only on one side, the magnetic core being placed in the inductor shell through the mounting opening; a first fixing bracket, the first fixing bracket covering the mounting opening, the first fixing bracket having N pairs of short-pin jacks, each pair of the short-pin jacks being used to fix two short pins of a group of the short-pin windings; a second fixing bracket, the second fixing bracket being arranged in a direction away from the first fixing bracket and the magnetic core, the second fixing bracket having M pairs of long-pin jacks, each pair of the long-pin jacks being used to fix two long pins of a group of the long-pin windings.

[0007] In one embodiment of the present invention, one or more glue pouring holes are further formed on the first fixing bracket, and the potting glue is poured into the inductor shell through the glue pouring holes.

[0008] In one embodiment of the present invention, the inductor structure further includes: an intermediate bracket, wherein the intermediate bracket is fixed between the first fixing bracket and the second fixing bracket.

[0009] In one embodiment of the present invention, the inductor structure further includes: a plurality of copper bars, each of which is fixed to the first fixing bracket or the second fixing bracket, and each of which is welded to a short pin or a long pin.

[0010] In one embodiment of the present invention, a plurality of copper busbar fixing holes are provided on the first fixing bracket and the second fixing bracket, and each copper busbar fixing hole is used to fix a copper busbar.

[0011] In one embodiment of the present invention, the inductor shell is formed of an aluminum plate using a bending process.

[0012] In one embodiment of the present invention, the inductor housing is formed by sheet metal connecting teeth using a bending process.

[0013] Beneficial effects of the present invention:

[0014] The present invention adopts a first fixing bracket and a second fixing bracket to respectively fix the pins of the short-pin winding and the long-pin winding, which can effectively reduce the waste in the lateral direction when the inductor is installed, effectively reduce the board area, and the inductor is installed upside down in the inductor shell, thereby effectively reducing the height on the board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the inductor structure according to an embodiment of the present invention;

[0016] Figure 2 Schematic diagram of the structure of an inductor according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the fixed connection between the first fixing bracket and the short-pin winding according to one embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the fixed connection between the second fixing bracket and the long-pin winding according to one embodiment of the present invention;

[0019] Figure 5a and Figure 5b The figure is a schematic structural diagram of an inductor shell according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Figure 1FIG. 4 is a schematic structural diagram of an inductor structure according to an embodiment of the present invention.

[0022] like Figure 1 The inductor structure of the embodiment of the present invention may include: an inductor 100 , an inductor shell 200 , a first fixing bracket 300 and a second fixing bracket 400 .

[0023] Among them, Figure 2 As shown, the inductor 100 includes a magnetic core 110 , N groups of short-pin windings 120 and M groups of long-pin windings 130 , wherein the N groups of short-pin windings 120 and the M groups of long-pin windings 130 are all wound on the magnetic core 110 , and M and N are both positive integers.

[0024] As will be appreciated, the pins of the long-pin winding 130 are longer than those of the short-pin winding 120. Therefore, a first fixing bracket 300 is used to secure the short pins of the short-pin winding 120, while a second fixing bracket 400 is used to secure the long pins of the long-pin winding 130. The first fixing bracket 300 covers the mounting opening, while the second fixing bracket 400 is positioned away from the first fixing bracket 300 and the magnetic core 110. In other words, the first fixing bracket 300 and the second fixing bracket 400 are not located on the same plane or curved surface. This approach effectively reduces lateral waste during inductor 100 installation, effectively reducing board area and making better use of longitudinal space.

[0025] The inductor housing 200 is provided with an installation opening only on one side, and the magnetic core 110 is placed in the inductor housing 200 through the installation opening. Thus, the downward space in the cavity can be effectively utilized, and the height of the board can be effectively reduced.

[0026] In addition, in order to prevent the windings from swaying left and right after passing through the magnetic core, after the N groups of short-pin windings 120 and the M groups of long-pin windings 130 are wound on the magnetic core 110, the windings are fixed by the first fixing bracket 300 and the second fixing bracket 400. Specifically, in one embodiment of the present invention, the first fixing bracket 300 is provided with N pairs of short-pin jacks, each pair of short-pin jacks is used to fix the two short pins of a group of short-pin windings 120, and the second fixing bracket 400 is provided with M pairs of long-pin jacks, each pair of long-pin jacks is used to fix the two long pins of a group of long-pin windings 130. In a specific embodiment of the present invention, Figure 2-Figure 4 As shown, M and N are both 2, and the first fixing bracket 300 is provided with two pairs of short pin jacks (denoted by a in the figure). 11 、a 12 、a 21 、a 22 Each pair of short pin jacks is used to fix two short pins of a group of short pin windings 120, and the second fixing bracket 400 is provided with two pairs of long pin jacks (indicated by b in the figure). 11 、b12 、b 21 、b 22 denoted by ), each pair of long pin insertion holes is used to secure two long pins of a set of long pin windings 130. Furthermore, it is understood that because the second fixing bracket 400 is positioned away from the first fixing bracket 300 and the magnetic core 110, the long pins of the two sets of long pin windings 130 will inevitably pass through the first fixing bracket 300, i.e., the first fixing bracket 300 will also have two pairs of long pin through-holes.

[0027] It should be noted that, in one embodiment of the present invention, the magnetic core 110 may be as follows: Figure 2-Figure 4 The shape shown is a shape formed by splicing two parallel line segments and two semicircles. In other embodiments of the present invention, the magnetic core 110 may also be rectangular or ring-shaped.

[0028] In one embodiment of the present invention, Figure 1 As shown, the inductor structure further includes an intermediate bracket 500, which is fixed between the first fixing bracket 300 and the second fixing bracket 400. Specifically, the first fixing bracket 300 and the second fixing bracket 400 are fixed by the intermediate bracket 500, thereby ensuring the stability of the installation.

[0029] In one embodiment of the present invention, Figure 1 As shown, the inductor structure further includes a plurality of copper bars 600. Each copper bar 600 is fixed to the first fixing bracket 300 or the second fixing bracket 400, and each copper bar 600 is welded to a short pin or a long pin.

[0030] Specifically, as a possible implementation, the first fixing bracket 300 and the second fixing bracket 400 are each provided with a plurality of copper busbar fixing holes, each of which is used to secure a copper busbar. Specifically, each copper busbar 600 is secured to the first fixing bracket 300 or the second fixing bracket 400 via a corresponding copper busbar fixing hole. After being soldered to the corresponding short pin or long pin, it serves as a connection port for the inductor structure.

[0031] In one embodiment of the present invention, Figure 1 As shown, the inductor structure further includes a boss bracket 700 , wherein the boss bracket 700 is fixed to the mounting opening of the inductor housing 200 , and the first fixing bracket 300 is covered on the mounting opening through the boss bracket 700 .

[0032] In one embodiment of the present invention, Figure 1 and Figure 3 As shown, the first fixing bracket 300 is further provided with one or more glue pouring holes (two glue pouring holes are shown in the figure, namely c1 and c2 ), and the potting glue is poured into the inductor shell through the glue pouring holes.

[0033] Specifically, the first fixing bracket 300 and the boss bracket 700 are locked in place and then glued and fixed. When pouring glue, the potting glue can be poured through the potting opening on the first fixing bracket 300. There is no need to perform other unnecessary position adjustments on the inductor 100 that is inverted and placed in the inductor shell 200. It is convenient and quick and can also reduce the height on the board. In addition, when power electronic products such as energy storage converters are in operation, there is usually a problem of heat accumulation at the inductor. In the prior art, heat is usually dissipated by adding an external fan, which not only increases the cost but also has a poor heat dissipation effect. However, in the present invention, after the inductor 100 is placed inverted in the inductor shell 200, the inductor 100 can conduct heat through the potting glue.

[0034] In addition, in order to further improve the heat dissipation effect, the present invention also improves the inductor housing 200.

[0035] In one embodiment of the present invention, the inductor housing is formed from aluminum sheet using a bending process. This allows for efficient heat transfer, while heat is dissipated through the inductor 100 and the potting compound. The high thermal conductivity of aluminum, combined with the tightly closed structure formed by the bending process, allows for efficient heat transfer. Furthermore, the curved surface increases the heat dissipation surface area, improving overall heat exchange efficiency and preventing inductor performance degradation due to overheating.

[0036] In another embodiment of the present invention, Figure 5a and Figure 5b As shown, the inductor housing 200 can be formed by connecting tooth pieces 210 using a bending process. Specifically, the inductor housing 200 can first be bent into a frame by using a bending process. This frame can include K faces (K is greater than or equal to 1 and less than or equal to 4). Then, the tooth pieces 210 are used to fill the other faces and connect them to form the inductor housing 200. In a specific embodiment of the present invention, as Figure 5a As described above, the inductor housing 200 can be first folded into a frame (with four sides) by a sheet metal bending process, and then the tooth piece 210 is used to fill the other side and connect them to form the inductor housing 200; in another specific embodiment of the present invention, as Figure 5b As described above, the inductor housing 200 can first be formed into a frame (with three sides) using a sheet metal bending process, and then the teeth 210 can be used to fill the other two sides and connect them to form the inductor housing 200. Among them, welding can be used for connection. Therefore, the sheet metal bending process can achieve a high-strength integrated structure through precise bending and forming. Combined with the design of the peripheral teeth 210, it can improve the overall mechanical strength, effectively suppress deformation caused by vibration or external impact, and can better increase the heat dissipation area and flow rate, thereby improving heat dissipation efficiency.

[0037] In summary, according to the inductor structure of an embodiment of the present invention, the inductor comprises a magnetic core, N groups of short-pin windings, and M groups of long-pin windings, each of which is wound around the magnetic core. The inductor housing has a mounting opening provided only on one side, through which the magnetic core is placed within the housing. A first fixing bracket covers the mounting opening, the first fixing bracket having N pairs of short-pin sockets, each pair of which is used to secure two short pins of a group of short-pin windings. A second fixing bracket is provided in a direction away from the first fixing bracket and the magnetic core, the second fixing bracket having M pairs of long-pin sockets, each pair of which is used to secure two long pins of a group of long-pin windings. Thus, the use of the first and second fixing brackets to respectively secure the pins of the short-pin windings and the long-pin windings effectively reduces lateral waste during inductor installation and effectively reduces board area. Furthermore, the inductor is mounted upside down within the housing, thereby effectively reducing board height.

[0038] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0039] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0042] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing module, or each unit may exist physically separately, or two or more units may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or in the form of software functional modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

[0043] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An inductor structure, characterized in that: include: An inductor, comprising a magnetic core, N groups of short-pin windings, and M groups of long-pin windings, wherein the N groups of short-pin windings and the M groups of long-pin windings are all wound around the magnetic core, and M and N are both positive integers; An inductor shell, wherein the inductor shell is provided with a mounting opening only on one side, and the magnetic core is placed in the inductor shell through the mounting opening; a first fixing bracket, the first fixing bracket covering the mounting opening, the first fixing bracket being provided with N pairs of short pin jacks, each pair of the short pin jacks being used to fix two short pins of a group of the short pin windings; A second fixing bracket is arranged in a direction away from the first fixing bracket and the magnetic core, and M pairs of long pin jacks are provided on the second fixing bracket, and each pair of the long pin jacks is used to fix two long pins of a group of the long pin windings.

2. The inductor structure according to claim 1, characterized in that The first fixing bracket is further provided with one or more glue pouring openings, through which the potting glue is poured into the inductor shell.

3. The inductor structure according to claim 1, wherein: Also includes: An intermediate bracket is fixed between the first fixing bracket and the second fixing bracket.

4. The inductor structure according to claim 1, wherein: Also includes: A plurality of copper bars, each of which is fixed on the first fixing bracket or the second fixing bracket, and each of which is welded to a short pin or a long pin.

5. The inductor structure according to claim 4, characterized in that: A plurality of copper busbar fixing holes are provided on the first fixing bracket and the second fixing bracket, and each copper busbar fixing hole is used to fix a copper busbar.

6. The inductor structure according to claim 1, wherein: The inductor shell is formed by an aluminum plate using a bending process.

7. The inductor structure according to claim 1, characterized in that: The inductor shell is formed by connecting tooth pieces of sheet metal using a bending process.

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