An inductor structure

Abstract

This utility model discloses an inductor structure, comprising: an inductor, which includes a magnetic core, N sets of short pin windings and M sets of long pin windings, wherein the N sets of short pin windings and the M sets of long pin windings are all wound on the magnetic core, and M and N are both positive integers; an inductor housing, which has a mounting opening on only one side, through which the magnetic core is placed inside the inductor housing; a first fixing bracket, which covers the mounting opening and has N pairs of short pin insertion holes, each pair of short pin insertion holes for fixing two short pins of one set of short pin windings; and a second fixing bracket, which is located away from the first fixing bracket and the magnetic core, and has M pairs of long pin insertion holes, each pair of long pin insertion holes for fixing two long pins of one set of long pin windings. This effectively reduces the area on the board and lowers the board height.

Description

Technical Field

[0001] This utility model relates to the field of electronic component technology, specifically to an inductor structure. Background Technology

[0002] Inductors are the core components for implementing filtering functions in power electronic products such as high-power storage converters.

[0003] In related technologies, plug-in inductors have drawbacks 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 components are arranged compactly. Therefore, this inductor structure is difficult to meet the needs of power electronic products such as high-power energy storage converters. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an inductor structure. The first fixed bracket and the second fixed bracket are used to fix and install the pins of the short pin winding and the long pin winding, respectively. This can effectively reduce the waste in the lateral direction during inductor installation, effectively reduce the area on the board, and the inductor is installed upside down in the inductor shell, thereby effectively reducing the height on the board.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An inductor structure includes: an inductor comprising a magnetic core, N sets of short pin windings and M sets of long pin windings, wherein the N sets of short pin windings and the M sets of long pin windings are all wound on the magnetic core, and M and N are both positive integers; an inductor housing having a mounting opening on only one side, through which the magnetic core is placed inside the inductor housing; a first fixing bracket covering the mounting opening, the first fixing bracket having N pairs of short pin insertion holes, each pair of short pin insertion holes for fixing two short pins of one set of short pin windings; and a second fixing bracket disposed away from the first fixing bracket and the magnetic core, the second fixing bracket having M pairs of long pin insertion holes, each pair of long pin insertion holes for fixing two long pins of one set of long pin windings.

[0007] Specifically, the first fixing bracket is also provided with one or more potting openings, through which potting compound is poured into the inductor shell.

[0008] Specifically, the inductor structure further includes an intermediate support, which is fixed between the first fixed support and the second fixed support.

[0009] Specifically, the inductor structure further includes: multiple copper busbars, each of which is fixed on the first fixed bracket or the second fixed bracket, and each copper busbar is soldered to a short pin or a long pin.

[0010] Specifically, both the first fixing bracket and the second fixing bracket are provided with multiple copper busbar fixing holes, each copper busbar fixing hole being used to fix one copper busbar.

[0011] Specifically, the inductor housing is formed from an aluminum plate using a bending process.

[0012] Specifically, the inductor housing is formed from sheet metal connecting teeth using a bending process.

[0013] The beneficial effects of this utility model are:

[0014] This invention uses a first fixed bracket and a second fixed 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 inductor installation, effectively reduce the area on the board, and the inductor is installed upside down in the inductor shell, thereby effectively reducing the height on the board. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the inductor structure according to an embodiment of the present invention;

[0016] Figure 2 This is a 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 fixed bracket and the short pin winding in one embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram showing the fixed connection between the second fixed bracket and the long needle winding in one embodiment of the present invention;

[0019] Figure 5a and Figure 5b This is a schematic diagram of the structure of an inductor shell according to a specific embodiment of the present invention. Detailed Implementation

[0020] 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.

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

[0022] like Figure 1 The inductor structure of this utility model embodiment may include: inductor 100, inductor shell 200, first fixed bracket 300 and second fixed bracket 400.

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

[0024] Understandably, the pins of the long pin winding 130 are longer than those of the short pin winding 120. Therefore, a first fixing bracket 300 can be used to fix the short pins of the short pin winding 120, and a second fixing bracket 400 can be used to fix the long pins of the long pin winding 130. The first fixing bracket 300 covers the mounting opening, and 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 on the same plane or curved surface. This method effectively reduces the waste in the lateral direction when installing the inductor 100, effectively reduces the area on the board, and makes good use of the longitudinal space.

[0025] The inductor housing 200 has a mounting port on only one side. The magnetic core 110 is placed inside the inductor housing 200 through the mounting port. This effectively utilizes the downward space inside the cavity and reduces the height of the board.

[0026] In addition, to prevent the windings from wobbling left and right after passing through the magnetic core, after N sets of short pin windings 120 and M sets of long pin windings 130 are wound around the magnetic core 110, each winding is fixed by a first fixing bracket 300 and a second fixing bracket 400. Specifically, in one embodiment of this utility model, the first fixing bracket 300 has N pairs of short pin insertion holes, each pair of short pin insertion holes is used to fix two short pins of one set of short pin windings 120, and the second fixing bracket 400 has M pairs of long pin insertion holes, each pair of long pin insertion holes is used to fix two long pins of one set of long pin windings 130. In a specific embodiment of this utility model, as... Figures 2-4 As shown, both M and N are 2, and the first fixed bracket 300 has two pairs of short pin holes (denoted as a in the figure). 11 a 12 a 21 a 22 (Indicated), each pair of short pin sockets is used to fix two short pins of a set of short pin windings 120, and the second fixing bracket 400 has two pairs of long pin sockets (referred to as b in the figure).11 b 12 b 21 b 22 (This indicates that) each pair of long pin holes is used to fix two long pins of a set of long pin windings 130. In addition, it can be understood that since the second fixing bracket 400 is located in a direction 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 also pass through the first fixing bracket 300, that is, 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 this utility model, the magnetic core 110 may be shaped as follows: Figures 2-4 The shape shown (formed by two parallel line segments and two semicircles) can also be rectangular or ring-shaped in other embodiments of this utility model.

[0028] In one embodiment of this utility model, such as Figure 1 As shown, the inductor structure also includes an intermediate bracket 500, which is fixed between the first fixed bracket 300 and the second fixed bracket 400. Specifically, the first fixed bracket 300 and the second fixed bracket 400 are fixed together by the intermediate bracket 500, thereby ensuring the stability of the installation.

[0029] In one embodiment of this utility model, such as Figure 1 As shown, the inductor structure also includes multiple copper busbars 600. Each copper busbar 600 is fixed to either the first fixed bracket 300 or the second fixed bracket 400, and each copper busbar 600 is soldered to either a short pin or a long pin.

[0030] Specifically, as one possible implementation, both the first fixing bracket 300 and the second fixing bracket 400 are provided with multiple copper busbar fixing holes, each copper busbar fixing hole being used to fix one copper busbar. Specifically, each copper busbar 600 is fixed to the first fixing bracket 300 or the second fixing bracket 400 through the corresponding copper busbar fixing hole, and after being soldered to the corresponding short pin or long pin, it serves as the wiring port of the inductor structure.

[0031] In one embodiment of this utility model, such as Figure 1 As shown, the inductor structure also includes a boss bracket 700, wherein the boss bracket 700 is fixed to the mounting port of the inductor housing 200, and the first fixing bracket 300 covers the mounting port through the boss bracket 700.

[0032] In one embodiment of this utility model, such as Figure 1 and Figure 3As shown, the first fixed bracket 300 is also provided with one or more potting openings (two potting openings are shown in the figure, namely c1 and c2), and potting compound is poured into the inductor shell through the potting openings.

[0033] Specifically, the first fixing bracket 300 and the boss bracket 700 are glued together after being engaged. During potting, the potting compound can be poured in through the potting opening on the first fixing bracket 300, eliminating the need for any additional positional adjustments to the inductor 100, which is placed upside down in the inductor housing 200. This is convenient and quick, and also reduces the height of the board. Furthermore, when power electronic products such as energy storage converters are running, heat often accumulates at the inductor. Existing technologies typically use external fans for heat dissipation, which not only increases costs but also has poor heat dissipation effects. However, in this invention, after the inductor 100 is placed upside down inside the inductor housing 200, the inductor 100 can conduct heat through the potting compound.

[0034] In addition, to further improve the heat dissipation effect, the inductor shell 200 is also improved in this invention.

[0035] In one embodiment of this invention, the inductor shell is formed from an aluminum plate using a bending process. Thus, while the inductor 100 and the potting compound conduct heat, the high thermal conductivity of aluminum, combined with the tightly closed structure formed by bending, enables highly efficient heat conduction. Furthermore, the bent surface increases the heat dissipation surface area, improving overall heat exchange efficiency and preventing inductor overheating that could lead to performance degradation.

[0036] In another embodiment of this utility model, such as Figure 5a and Figure 5b As shown, the inductor shell 200 can be formed by sheet metal connecting teeth 210 using a bending process. Specifically, the inductor shell 200 can first be bent from sheet metal into a frame 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 teeth 210 fill in the other faces and connect them to form the inductor shell 200. In a specific embodiment of this utility model, as... Figure 5a The inductor shell 200 can be first folded from sheet metal into a frame (with four sides) using a bending process, and then the toothed piece 210 fills in the remaining side and connects them to form the inductor shell 200; in another specific embodiment of this utility model, as... Figure 5bThe inductor shell 200 can be first folded from sheet metal into a frame (with three sides) using a bending process. Then, the toothed plates 210 fill in the remaining two sides and connect them to form the inductor shell 200. Welding can be used for this connection. Thus, the sheet metal bending process achieves a high-strength integrated structure through precise bending, and the design of the surrounding toothed plates 210 enhances the overall mechanical strength, effectively suppresses deformation caused by vibration or external impact, and better increases the heat dissipation area and airflow, thereby improving heat dissipation efficiency.

[0037] In summary, according to the inductor structure of this utility model embodiment, the inductor consists of a magnetic core, N sets of short pin windings, and M sets of long pin windings. Both the N sets of short pin windings and the M sets of long pin windings are wound on the magnetic core. The inductor housing has an installation opening on only one side. The magnetic core is placed inside the inductor housing through the installation opening. A first fixing bracket covers the installation opening and has N pairs of short pin insertion holes. Each pair of short pin insertion holes is used to fix two short pins of one set of short pin windings. A second fixing bracket is located away from the first fixing bracket and the magnetic core. The second fixing bracket has M pairs of long pin insertion holes, each pair of long pin insertion holes is used to fix two long pins of one set of long pin windings. Therefore, by using the first and second fixing brackets to fix the pins of the short pin windings and long pin windings respectively, waste in the lateral direction during inductor installation can be effectively reduced, effectively reducing the board area. Furthermore, the inductor is installed upside down inside the inductor housing, thereby effectively reducing the board height.

[0038] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Furthermore, the functional units in the various embodiments of this utility model can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0043] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to 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 sets of short pin windings and M sets of long pin windings, wherein the N sets of short pin windings and the M sets of long pin windings are all wound on the magnetic core, and M and N are both positive integers; An inductor housing, wherein the inductor housing has a mounting port on only one side, and the magnetic core is placed inside the inductor housing through the mounting port; A first fixed bracket covers the mounting port and has N pairs of short pin holes. Each pair of short pin holes is used to fix two short pins of a set of short pin windings. The second fixing bracket is disposed in a direction away from the first fixing bracket and the magnetic core. The second fixing bracket has M pairs of long pin holes, each pair of long pin holes being used to fix two long pins of a set of long pin windings.

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

3. The inductor structure according to claim 1, characterized in that, Also includes: An intermediate support is fixed between the first fixed support and the second fixed support.

4. The inductor structure according to claim 1, characterized in that, Also includes: Multiple copper busbars are provided, each of which is fixed to the first fixed bracket or the second fixed bracket, and each copper busbar is welded to a short pin or a long pin.

5. The inductor structure according to claim 4, characterized in that, Both the first and second fixed brackets have multiple copper busbar fixing holes, each of which is used to fix one copper busbar.

6. The inductor structure according to claim 1, characterized in that, The inductor housing is formed from an aluminum plate using a bending process.

7. The inductor structure according to claim 1, characterized in that, The inductor housing is formed from sheet metal connecting teeth using a bending process.

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