Three-phase common-mode inductor and electronic equipment

Abstract

The utility model discloses a three-phase common mode inductor and electronic equipment, and belongs to the technical field of inductors. Wherein the three-phase common-mode inductor comprises a base, an annular magnetic core, a partition plate and a coil assembly, three positioning blocks are arranged on the surface of the annular magnetic core, and the annular magnetic core is arranged above the base; the partition plate is provided with three blocking pieces, the three blocking pieces are located in the annular magnetic core and divide the annular magnetic core into a first winding area, a second winding area and a third winding area, and the sides, close to the blocking pieces, of the three positioning blocks are each provided with a first clamping groove matched with one side of the corresponding blocking piece; the coil assembly is provided with a first coil, a second coil and a third coil, the first coil is wound in the first winding area, the second coil is wound in the second winding area, and the third coil is wound in the third winding area. According to the structure, the material cost is reduced, and the technical problem of high material cost is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inductance, and particularly relates to a three-phase common-mode inductor and an electronic device. BACKGROUND

[0002] The existing three-phase common-mode inductor usually adopts a sleeve isolation mode to meet the withstand voltage requirement between windings, and the sleeve treatment is usually performed on the lead part of the coil to avoid the influence of the lead part of the coil on the normal work of the adjacent coil. The sleeve treatment is not performed on the lead part of the coil, which requires the use of more materials, resulting in high material cost. Therefore, how to reduce the material cost is a technical problem to be solved. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides a three-phase common-mode inductor and an electronic device, which reduces the material cost. In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0004] In a first aspect, the present application provides a three-phase common-mode inductor, comprising:

[0005] a base;

[0006] a circular ring magnetic core, the surface of the circular ring magnetic core is provided with three positioning blocks, and the circular ring magnetic core is arranged above the base;

[0007] a partition plate, the partition plate is provided with three blocking pieces, the three blocking pieces are located in the circular ring magnetic core, the three blocking pieces divide the circular ring magnetic core into a first winding area, a second winding area and a third winding area, and the three positioning blocks are each provided with a first clamping groove matched with one side of the blocking piece on the side close to the blocking piece;

[0008] a coil set, the coil set is provided with a first coil, a second coil and a third coil, the first coil is wound in the first winding area, the second coil is wound in the second winding area, and the third coil is wound in the third winding area.

[0009] The three-phase common-mode inductor according to the first aspect of the present application has at least the following beneficial effects: by arranging the positioning blocks on the surface of the circular ring magnetic core and arranging the first clamping grooves matched with the blocking pieces on the positioning blocks, the three blocking pieces can be embedded in the corresponding first clamping grooves. At this time, the circular ring magnetic core is separated to form three winding areas including the first winding area, the second winding area and the third winding area. The first coil, the second coil and the third coil are wound in the first winding area, the second winding area and the third winding area respectively. Compared with the prior art, the present application cancels the sleeve isolation mode and adopts the blocking piece for isolation, which reduces the use of materials to reduce the material cost. Therefore, the present application solves the technical problem of how to reduce the material cost.

[0010] According to some embodiments of the first aspect of the present application, the third winding area is arranged on one side of the toroidal magnetic core close to the base, the first winding area is arranged on one side above the third winding area, and the second winding area is arranged on the other side above the third winding area.

[0011] According to some embodiments of the first aspect of the present application, two first protrusions are arranged on each of the three positioning blocks away from the toroidal magnetic core, and two sides of each of the two first protrusions are recessed to form a groove for embedding one end of the first coil or one end of the second coil.

[0012] According to some embodiments of the first aspect of the present application, two fixing clamping grooves are arranged on each of the two opposite sides of the base close to the first coil and the second coil, and the fixing clamping grooves are used for clamping one end of the first coil or one end of the second coil.

[0013] According to some embodiments of the first aspect of the present application, the fixing clamping groove comprises a guide part and a fixing part, the guide part is in communication with the fixing part, the width of the guide part gradually decreases from one end away from the fixing part to one end close to the fixing part, the width of the one end close to the fixing part of the guide part is smaller than the diameter of the first coil or the second coil, and the fixing part matches the first coil or the second coil.

[0014] According to some embodiments of the first aspect of the present application, the base is provided with two through holes below the third coil, and the through holes are used for passing one end of the third coil.

[0015] According to some embodiments of the first aspect of the present application, each of the blocking sheets is provided with a second protrusion on one side of one end close to the corresponding positioning block, and the outer side of the positioning block is provided with a second clamping groove matching the second protrusion.

[0016] According to some embodiments of the first aspect of the present application, the angle between two adjacent blocking sheets is 120°.

[0017] In a second aspect, the present application further provides an electronic device comprising the three-phase common-mode inductor according to any one of the embodiments of the first aspect of the present application.

[0018] The present application will be further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a structural schematic diagram of an embodiment of the three-phase common-mode inductor according to the present application;

[0020] Figure 2 Structure diagram of a circular ring magnetic core of one embodiment of the three-phase common-mode inductor of the present application;

[0021] Figure 3 Structure diagram of a partition plate of one embodiment of the three-phase common-mode inductor of the present application;

[0022] Figure 4 Structure diagram of a base of one embodiment of the three-phase common-mode inductor of the present application.

[0023] Reference signs:

[0024] Base 100, fixing clamping groove 110, guiding part 111, fixing part 112, through hole 120,

[0025] Circular ring magnetic core 200, positioning block 210, first clamping groove 211, second clamping groove 212, first protrusion 213, recess 214, first winding area 220, second winding area 230, third winding area 240,

[0026] Partition plate 300, blocking sheet 310, second protrusion 311,

[0027] Coil set 400, first coil 410, second coil 420, third coil 430. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, is based on the orientation or position relationship shown in the drawings, only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0030] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0031] In the description of the present application, unless otherwise explicitly defined, the words such as setting, installing, connecting and the like should be understood in a broad sense, and the skilled in the art can determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0032] The embodiments of the present application are further described below with reference to the accompanying drawings.

[0033] Referring to Figure 1 As shown in the figure, the three-phase common-mode inductor includes a base 100, a circular ring magnetic core 200, a partition plate 300 and a coil group 400. The surface of the circular ring magnetic core 200 is provided with three positioning blocks 210, and the circular ring magnetic core 200 is arranged above the base 100; the partition plate 300 is provided with three blocking pieces 310, and the three blocking pieces 310 are located in the circular ring magnetic core 200, which divides the circular ring magnetic core 200 into a first winding area 220, a second winding area 230 and a third winding area 240, and the three positioning blocks 210 are provided with a first clamping groove 211 matched with one side of the blocking piece 310 on the side close to the blocking piece 310; the coil group 400 is provided with a first coil 410, a second coil 420 and a third coil 430, the first coil 410 is wound in the first winding area 220, the second coil 420 is wound in the second winding area 230, and the third coil 430 is wound in the third winding area 240.

[0034] The above embodiment sets the positioning block 210 on the surface of the circular ring magnetic core 200, and the positioning block 210 is provided with the first clamping groove 211 matched with the blocking piece 310, and the three blocking pieces 310 are embedded in the corresponding first clamping groove 211, at this time, the circular ring magnetic core 200 is separated to form three winding areas including the first winding area 220, the second winding area 230 and the third winding area 240. The first coil 410, the second coil 420 and the third coil 430 are wound in the first winding area 220, the second winding area 230 and the third winding area 240 respectively. Compared with the prior art, the present application cancels the sleeve isolation mode and uses the blocking piece 310 for isolation, which reduces the use of materials to reduce the material cost.

[0035] For example, Figure 1 and 2As shown, the base 100 is provided as a flat square block, the circular ring magnetic core 200 is vertically arranged above the base 100, three positioning blocks 210 are uniformly distributed on the surface of the circular ring magnetic core 200, the partition plate 300 is located in the center of the circular ring magnetic core 200, and one end of the three blocking pieces 310 is embedded in the three first clamping grooves 211. The three blocking pieces 310 cooperate with the three positioning blocks 210 to divide the circular ring magnetic core 200 into three uniform winding areas including the first winding area 220, the second winding area 230 and the third winding area 240. By reasonably arranging the structure, the use of materials is reduced, and the material cost is reduced. The cooperation of the positioning block 210 and the three blocking pieces 310 can reduce the interference between the three winding areas, and improve the anti-interference ability.

[0036] It can be understood that, referring to Figure 1 As shown, the third winding area 240 is arranged on one side of the circular ring magnetic core 200 close to the base 100, the first winding area 220 is arranged on one side above the third winding area 240, and the second winding area 230 is arranged on the other side above the third winding area 240.

[0037] As shown in Figure 1 and Figure 4 As shown, the first winding area 220, the second winding area 230 and the third winding area 240 are uniformly distributed on the circular ring magnetic core 200, and the occupied space is the same. Among them, the third winding area 240 is close to the through hole 120 of the base 100, so that the two ends of the third coil are more easily passed through the through hole 120. The first winding area 220 and the second winding area 230 are arranged on the two sides above the third winding area 240, so that the two ends of the first coil 410 or the second coil 420 can be directly clamped into the fixed clamping groove 110. By reasonably arranging the position of the winding area, the production efficiency is improved.

[0038] It can be understood that, referring to Figure 1 and 2 As shown, the three positioning blocks 210 are provided with two first protrusions 213 on the side away from the circular ring magnetic core 200. The two first protrusions 213 are provided with recesses 214 on the two opposite sides. The recesses 214 are used for embedding one end of the first coil 410 or one end of the second coil 420. By arranging the first protrusion 213 and the recess 214 on the protrusion, the end of the first coil 410 or the second coil 420 can be embedded in the recess 214 for limiting.

[0039] As shown in Figure 1 and 2As shown, the shape of the groove 214 matches the shape of the coil set 400. Taking the first coil 410 as an example, when the first coil 410 is wound around the first winding area 220, the two ends of the first coil 410 can be respectively embedded in the two grooves 214, and the groove 214 limits the two ends of the first coil 410.

[0040] It can be understood that, referring to Figure 1 and 4 As shown, the base 100 is provided with two fixed clamping grooves 110 on the opposite sides of the first coil 410 and the second coil 420, respectively, and the fixed clamping grooves 110 are respectively used for clamping one end of the first coil 410 or one end of the second coil 420. By setting the fixed clamping grooves 110, the ends of the first coil 410 or the second coil 420 are fixed.

[0041] For example, as shown in Figure 1 and 4 The two ends of the first coil 410 or the second coil 420 can be respectively clamped into the two fixed clamping grooves 110 on the same side, so that in the installation process, the coil end is clamped into the fixed clamping groove in a direct manner, thereby improving the production efficiency.

[0042] It can be understood that, referring to Figure 1 and 4 As shown, the fixed clamping groove 110 includes a guide portion 111 and a fixed portion 112, the guide portion 111 and the fixed portion 112 are in communication, the width of the guide portion 111 gradually decreases from one end away from the fixed portion 112 to one end close to the fixed portion 112, the width of the one end of the guide portion 111 close to the fixed portion 112 is less than the diameter length of the first coil 410 or the second coil 420, and the fixed portion 112 matches the first coil 410 or the second coil 420. By setting the guide portion 111 and the fixed portion 112, the end of the first coil 410 or the second coil 420 can be clamped into the fixed portion 112 after passing through the guide portion 111 to fix the end.

[0043] For example, as shown in Figure 1 and 4 Taking the first coil 410 as an example, the two ends of the first coil 410 are respectively embedded in the two grooves 214 for limiting, and then the two ends of the first coil 410 are respectively embedded in the two fixed clamping grooves 110 on the same side of the base 100, and the ends pass through the guide portion 111 and are clamped into the fixed portion 112. Since the width of the one end of the guide portion 111 close to the fixed portion 112 is less than the diameter length of the first coil 410 or the second coil 420, the end of the first coil 410 cannot be taken out of the fixed portion 112, so the fixed portion 112 fixes the end of the first coil 410.

[0044] It can be understood that, referring to Figure 1 and4 As shown in FIG. 4, the base 100 is provided with two through holes 120 below the third coil 430, and the through holes 120 are used for the one end of the third coil 430 to pass through. By providing the through holes 120 on the base 100, the two ends of the third coil 430 can directly pass through the base 100.

[0045] As shown in FIG. 4, the base 100 is provided with two through holes 120 below the third coil 430, and the through holes 120 are used for the one end of the third coil 430 to pass through. By providing the through holes 120 on the base 100, the two ends of the third coil 430 can directly pass through the base 100. Figure 1 and 4 As shown in FIG. 4, the base 100 is provided with two through holes 120 below the third coil 430, and the through holes 120 are used for the one end of the third coil 430 to pass through. By providing the through holes 120 on the base 100, the two ends of the third coil 430 can directly pass through the base 100.

[0046] As shown in FIG. 4, the base 100 is provided with two through holes 120 below the third coil 430, and the through holes 120 are used for the one end of the third coil 430 to pass through. By providing the through holes 120 on the base 100, the two ends of the third coil 430 can directly pass through the base 100. Figure 1 、 2 and 3, each of the blocking sheets 310 is provided with a second protrusion 311 on one side of the end thereof facing the corresponding positioning block 210, and the outer side of the positioning block 210 is provided with a second clamping groove 212 matched with the second protrusion 311. By providing the second protrusion 311 on the blocking sheet 310 and the second clamping groove 212 matched with the second protrusion 311 on the positioning block 210, when the second protrusion 311 is embedded in the second clamping groove 212, the second clamping groove 212 clamps the second protrusion 311 to prevent the partition plate 300 from being pulled out of the toroidal magnetic core 200.

[0047] As shown in FIG. 4, the base 100 is provided with two through holes 120 below the third coil 430, and the through holes 120 are used for the one end of the third coil 430 to pass through. By providing the through holes 120 on the base 100, the two ends of the third coil 430 can directly pass through the base 100. Figure 1 、 2 and 3, each of the blocking sheets 310 is provided with a second protrusion 311 on one side of the end thereof facing the corresponding positioning block 210, and the outer side of the positioning block 210 is provided with a second clamping groove 212 matched with the second protrusion 311. By providing the second protrusion 311 on the blocking sheet 310 and the second clamping groove 212 matched with the second protrusion 311 on the positioning block 210, when the second protrusion 311 is embedded in the second clamping groove 212, the second clamping groove 212 clamps the second protrusion 311 to prevent the partition plate 300 from being pulled out of the toroidal magnetic core 200.

[0048] As shown in FIG. 4, the base 100 is provided with two through holes 120 below the third coil 430, and the through holes 120 are used for the one end of the third coil 430 to pass through. By providing the through holes 120 on the base 100, the two ends of the third coil 430 can directly pass through the base 100. ​ As shown in FIG. 4, the base 100 is provided with two through holes 120 below the third coil 430, and the through holes 120 are used for the one end of the third coil 430 to pass through. By providing the through holes 120 on the base 100, the two ends of the third coil 430 can directly pass through the base 100.

[0049] In a second aspect, the application also provides an electronic device comprising the three-phase common-mode inductor according to any one of the embodiments of the first aspect of the application. The functions and principles of the electronic device of the present embodiment are based on the above-mentioned three-phase common-mode inductor, and therefore the electronic device of the present embodiment has the same beneficial effects as the above-mentioned three-phase common-mode inductor. For the sake of brevity, the description will not be repeated here.

[0050] The embodiments of the application are described in detail above with reference to the accompanying drawings, but the application is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the application.

Claims

1. A three-phase common-mode inductor, characterized by, The utility model relates to a three-phase common mode inductor, comprising: a base; a circular ring magnetic core, the surface of the circular ring magnetic core is provided with three positioning blocks, the circular ring magnetic core is arranged above the base; a partition plate, the partition plate is provided with three blocking pieces, three blocking pieces are located in the circular ring magnetic core, three blocking pieces divide the circular ring magnetic core into a first winding area, a second winding area and a third winding area, and three positioning blocks are provided with a first clamping groove matched with one side of the blocking piece on the side close to the blocking piece; a coil group, the coil group is provided with a first coil, a second coil and a third coil, the first coil is wound in the first winding area, the second coil is wound in the second winding area, and the third coil is wound in the third winding area; wherein, the third winding area is arranged on the side of the circular ring magnetic core close to the base, the first winding area is arranged on the side above the third winding area, and the second winding area is arranged on the other side above the third winding area; three positioning blocks are provided with two first protrusions on the side away from the circular ring magnetic core, and the opposite sides of the two first protrusions are recessed to form grooves, the grooves are used for embedding one end of the first coil or one end of the second coil.

2. The three-phase common-mode inductor of claim 1, wherein, The base is provided with two fixed clamping grooves on the opposite sides close to the first coil and the second coil, and the fixed clamping grooves are used for clamping one end of the first coil or one end of the second coil.

3. The three-phase common-mode inductor of claim 2, wherein, The fixed clamping groove comprises a guide part and a fixed part, the guide part is communicated with the fixed part, the width of the guide part gradually decreases from one end away from the fixed part to one end close to the fixed part, the width of the one end close to the fixed part is smaller than the diameter length of the first coil or the second coil, and the fixed part is matched with the first coil or the second coil.

4. The three-phase common-mode inductor of claim 1, wherein, The base is provided with two through holes below the third coil, and the through holes are used for the third coil to pass through one end.

5. The three-phase common-mode inductor of claim 1, wherein, Each blocking piece is provided with a second protrusion on the side of the corresponding positioning block, and the outer side of the positioning block is provided with a second clamping groove matched with the second protrusion.

6. The three-phase common-mode inductor of claim 1, wherein, The angle between two adjacent blocking pieces is 120 degrees.

7. An electronic device, comprising: The three-phase common mode inductor of any one of claims 1 to 6 is included.

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