High-compactness three-phase common-mode inductor

Abstract

According to the high-compactness three-phase common-mode inductor, in the assembling process, the three coils are wound and sleeved on the annular magnetic core, and then the annular magnetic core is inserted into the two positioning grooves and clamped with the two positioning blocks respectively. Meanwhile, the annular magnetic core is inserted into the positioning space and abuts against the partition columns respectively. In other words, the annular magnetic core is firmly fixed through the two positioning blocks and the partition columns, and the structural strength, the structural compactness and the structural stability of the high-compactness three-phase common mode inductor are improved. And each positioning column is correspondingly inserted into one positioning insertion hole and is clamped with the positioning block, so that the heat dissipation cover is arranged on the positioning seat in a covering manner. In the working process of the high-compactness three-phase common-mode inductor, the heat dissipation fan works at the same time, air is blown towards the annular magnetic core, heat generated in the working process of the high-compactness three-phase common-mode inductor is taken away, and good heat dissipation performance of the high-compactness three-phase common-mode inductor is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of inductors, in particular to a highly compact three-phase common-mode inductor. Background Art

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. An inductor has a certain inductance and it only impedes the change of current. If the inductor is in a state without current passing through, when the circuit is switched on, it will try to impede the current from flowing through it. If the inductor is in a state with current passing through, when the circuit is switched off, it will try to maintain the current unchanged. An inductor is also called a choke, a reactor, or a dynamic reactor.

[0003] However, for traditional three-phase common-mode inductors, such as the technical solution to be protected by the patent with the application number CN202021638607.X and the patent name of a three-phase common-mode inductor, the heat dissipation performance is poor and the working stability is low. Summary of the Utility Model

[0004] Based on this, in view of the technical problems of poor heat dissipation performance and low working stability of traditional three-phase common-mode inductors, it is necessary to provide a highly compact three-phase common-mode inductor.

[0005] A highly compact three-phase common-mode inductor includes: a positioning seat, a heat dissipation cover, an annular magnetic core, and three coils;

[0006] The positioning seat includes a positioning carrier plate, two positioning blocks, and four partition columns; the two positioning blocks are symmetrically arranged at both ends of the positioning carrier plate, and the four partition columns are symmetrically arranged in pairs on both sides of the positioning carrier plate; both of the two positioning blocks are provided with positioning grooves, and the two positioning grooves are symmetrically arranged; a positioning space is formed between the four partition columns; three wire passing holes are respectively opened on both sides of the positioning carrier plate; positioning insertion holes are opened on both sides of each positioning block;

[0007] The positioning space and the two positioning grooves are both adapted to the annular magnetic core. The annular magnetic core is inserted into the two positioning grooves and is clamped with the two positioning blocks, and the annular magnetic core is inserted into the positioning space and abuts against the four partition columns;

[0008] The three coils are all sleeved on the annular magnetic core, and each partition column is arranged between two adjacent coils; the power connection ends of the coils are adapted to the wire passing holes, and each power connection end on the coil is correspondingly inserted into one of the wire passing holes and is clamped with the positioning carrier plate;

[0009] The open end of the heat dissipation cover is provided with a plurality of positioning posts, the positioning posts are adapted to the positioning jacks, and each positioning post is correspondingly inserted into a positioning jack and is clamped with the positioning block; a part of the toroidal core is received in the heat dissipation cover; a heat dissipation fan is arranged on the top of the heat dissipation cover, and the blowing direction of the heat dissipation fan faces the toroidal core.

[0010] In one embodiment, a plurality of heat dissipation grooves are formed on one side of the positioning carrier plate facing away from the heat dissipation cover.

[0011] In one embodiment, the positioning carrier plate is a rectangular plate structure.

[0012] In one embodiment, the positioning posts are integrally formed with the heat dissipation cover.

[0013] In one embodiment, the positioning posts are cylinders.

[0014] In one embodiment, the positioning posts are rectangular columns.

[0015] In one embodiment, the positioning posts are cones.

[0016] In one embodiment, the positioning blocks are integrally formed with the positioning carrier plate.

[0017] In one embodiment, the partition posts are integrally formed with the positioning carrier plate.

[0018] In one embodiment, the partition posts are rectangular column structures.

[0019] During the assembly process of the above-mentioned high-compactness three-phase common-mode inductor, first, three coils are wound and sleeved on the toroidal core, and then the toroidal core is inserted into two positioning grooves and is respectively clamped with two positioning blocks. At the same time, the toroidal core is inserted into the positioning space and abuts against each partition post respectively. That is to say, the two positioning blocks and each partition post firmly fix the toroidal core, increasing the structural strength, structural compactness and structural stability of the high-compactness three-phase common-mode inductor. Each positioning post is correspondingly inserted into a positioning jack and is clamped with the positioning block, so as to cover the heat dissipation cover on the positioning seat. During the working process of the high-compactness three-phase common-mode inductor, the heat dissipation fan works at the same time, blowing in the direction of the toroidal core, taking away the heat generated during the working process of the high-compactness three-phase common-mode inductor, ensuring the good heat dissipation performance of the high-compactness three-phase common-mode inductor, and thus improving the good working stability of the high-compactness three-phase common-mode inductor. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a high-compactness three-phase common-mode inductor in one embodiment;

[0021] Figure 2 It is a partial structural schematic diagram of a highly compact three-phase common-mode inductor in an embodiment;

[0022] Figure 3 is Figure 2 a structural schematic diagram of another perspective of a part of the highly compact three-phase common-mode inductor in the embodiment;

[0023] Figure 4 is Figure 2 a structural schematic diagram of another perspective of a part of the highly compact three-phase common-mode inductor in the embodiment. Specific embodiments

[0024] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0026] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0028] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0029] Please refer to Figures 1 to 4 simultaneously, the present utility model provides a highly compact three-phase common-mode inductor 10, and the highly compact three-phase common-mode inductor 10 includes: a positioning base 100, a heat dissipation cover 200, an annular magnetic core 300, and three coils 400.

[0030] The positioning base 100 includes a positioning carrier plate 110, two positioning blocks 120, and four partition columns 130. In this embodiment, a plurality of heat dissipation grooves 101 are formed on one side of the positioning carrier plate 110 facing away from the heat dissipation cover 200 to improve the heat dissipation performance of the positioning carrier plate 110. The two positioning blocks 120 are symmetrically disposed at both ends of the positioning carrier plate 110, and the four partition columns 130 are symmetrically disposed in pairs on both sides of the positioning carrier plate 110. Each of the two positioning blocks 120 is provided with a positioning groove 102, and the two positioning grooves 102 are symmetrically arranged. A positioning space 103 is formed between the four partition columns 130. Three wire passing holes 104 are respectively formed on both sides of the positioning carrier plate 110. Positioning insertion holes 105 are formed on both sides of the positioning block 120.

[0031] The positioning space 103 and the two positioning slots 102 are both adapted to the toroidal magnetic core 300. The toroidal magnetic core 300 is inserted into the two positioning slots 102 and is clamped with the two positioning blocks 120. The toroidal magnetic core 300 is inserted into the positioning space 103 and abuts against the four partition columns 130.

[0032] The three coils 400 are all sleeved on the toroidal magnetic core 300, and each partition column 130 is arranged between two adjacent coils 400. The power connection ends of the coils 400 are adapted to the wire passing holes 104, and each power connection end on the coil 400 is correspondingly inserted into a wire passing hole 104 and is clamped with the positioning carrier plate 110.

[0033] A plurality of positioning posts 210 are arranged at the open end of the heat dissipation cover 200. The positioning posts 210 are adapted to the positioning jacks 105, and each positioning post 210 is correspondingly inserted into a positioning jack 105 and is clamped with the positioning block 120. In this embodiment, the positioning posts 210 are integrally formed with the heat dissipation cover 200. Further, in this embodiment, the positioning posts 210 are cylindrical. In another embodiment, the positioning posts 210 are rectangular columnar bodies. In yet another embodiment, the positioning posts 210 are conical bodies. A part of the toroidal magnetic core 300 is received in the heat dissipation cover 200. A heat dissipation fan 220 is arranged at the top of the heat dissipation cover 200, and the blowing direction of the heat dissipation fan 220 faces the toroidal magnetic core 300.

[0034] In order to increase the structural stability of the positioning seat 100, in one embodiment, the positioning carrier plate 110 is a rectangular plate structure. The partition columns 130 are integrally formed with the positioning carrier plate 110. Further, the positioning blocks 120 are integrally formed with the positioning carrier plate 110. In one embodiment, the partition columns 130 are rectangular columnar structures. Thus, the structural stability of the positioning seat 100 is increased.

[0035] During the assembly process of the above-mentioned highly compact three-phase common-mode inductor 10, first, three coils 400 are wound and sleeved on the toroidal magnetic core 300, and then the toroidal magnetic core 300 is inserted into the two positioning grooves 102 and respectively clamped with the two positioning blocks 120. At the same time, the toroidal magnetic core 300 is inserted into the positioning space 103 and respectively abuts against each partition column 130. That is to say, the two positioning blocks 120 and each partition column 130 firmly fix the toroidal magnetic core 300, increasing the structural strength, structural compactness, and structural stability of the highly compact three-phase common-mode inductor 10. Each positioning column 210 is correspondingly inserted into a positioning hole 105 and clamped with the positioning block 120, thereby covering the heat dissipation cover 200 on the positioning seat 100. During the operation of the highly compact three-phase common-mode inductor 10, the heat dissipation fan 220 works simultaneously, blowing air towards the direction of the toroidal magnetic core 300, taking away the heat generated during the operation of the highly compact three-phase common-mode inductor 10, ensuring the good heat dissipation performance of the highly compact three-phase common-mode inductor 10, and thus improving the good working stability of the highly compact three-phase common-mode inductor 10.

[0036] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0037] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A highly compact three-phase common-mode inductor, characterized in that, Comprising: A positioning base, a heat dissipation cover, an annular magnetic core, and three coils; The positioning base includes a positioning carrier plate, two positioning blocks, and four partition columns; the two positioning blocks are symmetrically arranged at both ends of the positioning carrier plate, and the four partition columns are symmetrically arranged in pairs on both sides of the positioning carrier plate; both of the two positioning blocks are provided with positioning grooves, and the two positioning grooves are symmetrically arranged; a positioning space is formed between the four partition columns; three wire passing holes are respectively formed on both sides of the positioning carrier plate; positioning insertion holes are formed on both sides of the positioning block; The positioning space and the two positioning grooves are both adapted to the annular magnetic core, the annular magnetic core is inserted into the two positioning grooves and is clamped with the two positioning blocks, and the annular magnetic core is inserted into the positioning space and abuts against the four partition columns; The three coils are all sleeved on the annular magnetic core, and each partition column is arranged between two adjacent coils; the power connection end of the coil is adapted to the wire passing hole, and each power connection end on the coil is correspondingly inserted into one of the wire passing holes and is clamped with the positioning carrier plate; A plurality of positioning columns are arranged at the open end of the heat dissipation cover, the positioning columns are adapted to the positioning insertion holes, and each positioning column is correspondingly inserted into one of the positioning insertion holes and is clamped with the positioning block; a part of the annular magnetic core is received in the heat dissipation cover; a heat dissipation fan is arranged at the top of the heat dissipation cover, and the blowing direction of the heat dissipation fan faces the annular magnetic core.

2. The highly compact three-phase common mode inductor according to claim 1, wherein A plurality of heat dissipation grooves are formed on the surface of the positioning carrier plate facing away from the heat dissipation cover.

3. The high-compactness three-phase common-mode inductor according to claim 1, wherein The positioning carrier plate is of a rectangular plate structure.

4. The high-compact three-phase common-mode inductor according to claim 1, wherein The positioning column is integrally formed with the heat dissipation cover.

5. The high-compactness three-phase common-mode inductor according to claim 1, characterized in that, The positioning column is a cylinder.

6. The highly compact three-phase common-mode inductor according to claim 1, wherein, The positioning column is a rectangular prism.

7. The highly compact three-phase common mode inductor according to claim 1, characterized in that, The positioning column is a cone.

8. The high-compact three-phase common-mode inductor according to claim 1, characterized in that The positioning block is integrally formed with the positioning carrier plate.

9. The high-compact three-phase common-mode inductor according to claim 1, characterized in that, The partition column is integrally formed with the positioning carrier plate.

10. The high-compact three-phase common-mode inductor according to claim 1, wherein, The partition column is of a rectangular prism structure.

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