CN218100931U

CN218100931U - Skeleton for inductor and inductor

Info

Publication number: CN218100931U
Application number: CN202222340890.3U
Authority: CN
Inventors: 廖忠明
Original assignee: Anker Innovations Co Ltd
Current assignee: Anker Innovations Co Ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-12-20
Anticipated expiration: 2032-09-02

Abstract

The utility model discloses a framework for an inductor and the inductor, wherein the framework is provided with a winding part, a first installation part and a second installation part, the first installation part and the second installation part are respectively arranged at two opposite ends of the framework, the first installation part is provided with at least two first installation grooves, and the extending direction of the first installation grooves corresponds to the installation direction of a first magnetic block; the second mounting part is provided with at least two second mounting grooves, the second mounting grooves correspond to the first mounting grooves one to one, and the extending direction of the second mounting grooves corresponds to the mounting direction of the second magnetic blocks; the inductor comprises the framework, the winding, the first magnetic block and the second magnetic block. When the inductor is installed, if the installation space is limited, the first magnetic block and the second magnetic block can be installed in the corresponding first installation groove and the corresponding second installation groove according to the actual installation space, so that installation is completed, and the problem that installation cannot be completed due to limited space is solved.

Description

Skeleton for inductor and inductor

Technical Field

The utility model relates to an anti-electromagnetic interference technical field especially relates to a skeleton and inductor for inductor.

Background

Common mode inductors and differential mode inductors are anti-electromagnetic interference components and are widely applied to various filters, switching power supplies and other products. Wherein: common mode inductors are used for suppressing common mode interference, and differential mode inductors are used for suppressing differential mode interference, which are important filtering inductors.

The common mode inductor and the differential mode inductor are different in winding mode, and the magnetic block is assembled on the framework. In some cases, the space reserved on the filter and the switching power supply cannot meet the requirement of the installation space of the inductor, so that the inductor is difficult to smoothly complete installation, and troubles are brought to assembly.

SUMMERY OF THE UTILITY MODEL

Based on this, there is a need for a bobbin for an inductor and an inductor; the framework for the inductor can meet the installation requirements of the inductor in different space conditions, and the problem that the inductor is difficult to install smoothly due to the limited installation space is solved.

The technical scheme is as follows:

one embodiment provides a bobbin for an inductor, the bobbin is provided with a winding part, a first mounting part and a second mounting part, the winding part is used for arranging a winding, and the first mounting part and the second mounting part are respectively arranged at two opposite ends of the bobbin;

the first mounting part is provided with at least two first mounting grooves, the first mounting grooves are used for mounting first magnetic blocks, and the extending direction of the first mounting grooves corresponds to the mounting direction of the first magnetic blocks; the second installation part is provided with at least two second installation grooves, the second installation grooves correspond to the first installation grooves in a one-to-one mode, the second installation grooves are used for installing second magnetic blocks, and the extending direction of the second installation grooves corresponds to the installation direction of the second magnetic blocks.

The framework for the inductor is provided with at least two first mounting grooves and at least two second mounting grooves, the extending direction of the first mounting grooves corresponds to the mounting direction of the first magnetic block, and the extending direction of the second mounting grooves corresponds to the mounting direction of the second magnetic block; when the inductor is installed, if the installation space is limited, the first magnetic block and the second magnetic block can be installed in the corresponding first installation groove and the corresponding second installation groove according to the actual installation space, so that installation is completed, and the problem that installation cannot be completed due to limited space is solved.

The technical solution is further explained as follows:

in one embodiment, the extending directions of at least two first mounting grooves are different; the extending directions of the at least two second mounting grooves are different, so that the second mounting grooves correspond to the first mounting grooves one to one.

In one embodiment, the first mounting part is further provided with first matching grooves for matching with the first matching parts of the first magnetic block, and one ends of all the first mounting grooves extend to the first matching grooves;

and the second mounting part is provided with a second matching groove, the second matching groove is used for being matched with the second matching part of the second magnetic block, and one end of each second mounting groove extends to the second matching groove.

In one embodiment, the winding part has a first winding slot and a second winding slot, the first winding slot is used for winding a first winding, and the second winding slot is used for winding a second winding to form a common mode inductor.

In one embodiment, the bobbin has an annular groove disposed around an outer circumference of the bobbin, and the winding part includes a partition provided on the bobbin for partitioning the annular groove into the first winding groove and the second winding groove.

In one embodiment, the winding portion includes at least one first wire separating element disposed on the bobbin, at least one portion of the first wire separating element is located in the first winding slot, and the first wire separating element is configured to separate the first winding into at least two portions to form a differential mode inductor.

In one embodiment, the first wire separating part comprises a first wire separating part and a second wire separating part, and the first wire separating part and the second wire separating part are arranged around the periphery of the framework to divide the first winding groove into at least two first winding spaces;

the first wire passing openings are formed between the first wire separating parts and the second wire separating parts at intervals and used for enabling the first windings to pass wires between the adjacent first winding spaces.

In one embodiment, the first wire separating member is annularly arranged and sleeved on the periphery of the framework to divide the first winding groove into at least two first winding spaces.

In one embodiment, the winding portion further includes at least one second wire separating member disposed on the bobbin, at least a portion of the second wire separating member is located in the second winding slot, and the second wire separating member is configured to separate the second winding into at least two portions.

Another embodiment provides an inductor comprising:

a bobbin for an inductor as claimed in any one of the above claims;

the winding is wound on the framework through the winding part;

the first magnetic block and the second magnetic block are both U-shaped magnetic blocks, the first magnetic block is fixed with the framework through the first mounting groove, and the second magnetic block is fixed with the framework through the second mounting groove.

The inductor adopts the framework for the inductor, so that the first magnetic block and the second magnetic block can be installed by selecting the corresponding first installation groove and second installation groove according to actual installation space, and the installation of the inductor in different installation spaces is realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.

Furthermore, the drawings are not drawn to scale with 1.

Fig. 1 is a schematic structural diagram of a framework for an inductor according to an embodiment of the present invention;

FIG. 2 is a schematic view of another perspective of the bobbin for the inductor in the embodiment of FIG. 1;

fig. 3 is a front view of a bobbin for an inductor in another embodiment of the present invention;

FIG. 4 is a side view of the bobbin for the inductor in the embodiment of FIG. 3;

FIG. 5 is a top view of the bobbin for the inductor in the embodiment of FIG. 3;

FIG. 6 is a bottom view of the bobbin for the inductor in the embodiment of FIG. 3;

fig. 7 is a front view of a bobbin for an inductor in other embodiments of the present invention;

fig. 8 is an exploded schematic view of a bobbin, a first magnetic block and a second magnetic block for an inductor according to an embodiment of the present invention.

Reference is made to the accompanying drawings in which:

100. a framework; 111. a first mounting groove; 112. a first mating groove; 121. a second mounting groove; 131. a first winding slot; 1311. a first winding space; 132. a second winding slot; 1321. a second winding space; 133. a separator; 134. a first wire-separating member; 1341. a first parting line portion; 1342. a second parting line portion; 1343. a first wire passing port; 135. a second wire-separating member; 1351. a third parting line portion; 1352. a fourth parting line portion; 1353. a second wire passing port; 140. a pin; 210. a first magnetic block; 211. a first mating portion; 220. a second magnetic block; 221. a second mating portion.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

in order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 to 8, an embodiment provides a bobbin 100 for an inductor, the bobbin 100 is provided with a winding portion, a first mounting portion and a second mounting portion, the winding portion is used for arranging a winding, and the first mounting portion and the second mounting portion are respectively disposed at two opposite ends of the bobbin 100.

As shown in fig. 1 to 3, the first mounting portion has at least two first mounting grooves 111, the first mounting grooves 111 are used for mounting the first magnetic block 210, and the extending direction of the first mounting grooves 111 corresponds to the mounting direction of the first magnetic block 210; the second mounting part has at least two second mounting grooves 121, the second mounting grooves 121 correspond to the first mounting grooves 111 one by one, the second mounting grooves 121 are used for mounting the second magnetic block 220, and the extending direction of the second mounting grooves 121 corresponds to the mounting direction of the second magnetic block 220.

The framework 100 for the inductor is provided with at least two first mounting grooves 111 and at least two second mounting grooves 121, wherein the extending direction of the first mounting grooves 111 corresponds to the mounting direction of the first magnetic block 210, and the extending direction of the second mounting grooves 121 corresponds to the mounting direction of the second magnetic block 220; when the inductor is installed, if the installation space is limited, the first and

second installation grooves

111 and 121 capable of installing the first and second

magnetic blocks

210 and 220 can be selected according to the actual installation space to complete the installation, thereby solving the problem that the installation cannot be completed due to the limited space.

In the embodiment shown in fig. 1 and 2, two first mounting grooves 111 are provided. With such an arrangement, two different installation positions of the first magnetic block 210 can be selected to adapt to different installation space environments.

In the embodiment shown in fig. 3 to 5, there are three first mounting grooves 111 and, correspondingly, three second mounting grooves 121. Due to the arrangement, the first magnetic block 210 can select three different installation positions, and the adaptability to different installation space environments is greatly improved.

In one embodiment, please refer to fig. 1 to 3, the extending directions of at least two first mounting grooves 111 are different; the extending directions of the at least two second mounting grooves 121 are different and are in one-to-one correspondence with the first mounting grooves 111.

As shown in fig. 3, the three first mounting grooves 111 have different extending directions. In the view shown in fig. 3, the first mounting groove 111 on the left side extends towards the left side, i.e. the first direction; the first mounting groove 111 on the right side extends towards the right side, namely the second direction; the first mounting groove 111 at the upper side extends toward the upper side, i.e., the third direction; therefore, the first installation groove 111 can limit the installation direction of the first magnetic block 210, so that the first magnetic block 210 can be installed in different installation directions according to different installation environments, and the installation requirements under different installation space environments can be met.

In one embodiment, referring to fig. 1 to 3, the first mounting portion further has a first fitting groove 112, the first fitting groove 112 is used for fitting with the first fitting portion 211 of the first magnetic block 210, and one end of all the first mounting grooves 111 extends to the first fitting groove 112.

As shown in fig. 1 to 3, the ends of all the first mounting grooves 111 communicate with the first fitting grooves 112. As shown in fig. 8, the first magnetic block 210 has a first matching portion 211, and the first matching groove 112 is used for accommodating the first matching portion 211 for limiting matching.

In one embodiment, the second mounting part has a second fitting groove for fitting with the second fitting part 221 of the second magnetic block 220, and one end of all the second fitting grooves 121 extends to the second fitting groove.

Optionally, the first fitting groove 112 and the second fitting groove are through grooves that communicate with each other and penetrate the skeleton 100.

In one embodiment, referring to fig. 1 and fig. 2, the winding portion has a first winding slot 131 and a second winding slot 132, the first winding slot 131 is used for winding a first winding, and the second winding slot 132 is used for winding a second winding to form a common mode inductor.

Optionally, the skeleton 100 is provided with four pins 140, and the pins 140 are used for soldering the inductor and a device such as a circuit board. The first winding is wound on the framework 100 through the first winding slot 131, and the first winding has two ends which are respectively and electrically connected with the two pins 140; the second winding is wound on the frame 100 through the second winding slot 132, and the second winding has two ends, and the two ends are electrically connected to the two remaining pins 140 respectively.

In one embodiment, referring to fig. 1 and 2, the bobbin 100 has an annular groove disposed around an outer circumference of the bobbin 100, and the winding part includes a partition 133, and the partition 133 is disposed on the bobbin 100 to partition the annular groove into a first winding groove 131 and a second winding groove 132.

Alternatively, the divider 133 may be an annular structure disposed around an annular groove in the backbone 100.

Optionally, the divider 133 is provided integrally with the skeleton 100.

In one embodiment, referring to fig. 4 to 8, the winding portion includes at least one first wire separating element 134 disposed on the bobbin 100, at least one portion of the first wire separating element 134 is located in the first winding slot 131, and the first wire separating element 134 is used for dividing the first winding into at least two portions to form the differential mode inductor.

The first spacer 134 can increase the leakage inductance of the first winding to be equivalent to a differential mode inductance to form a differential mode and common mode integral inductor with the common mode inductance. So set up, not only reduced the volume of the integrative inductor of differential mode common mode, reduced occupation space, but also reduced electronic device's use, and then reduce cost.

In one embodiment, referring to fig. 4 to 6, the first wire separator 134 includes a first wire separation portion 1341 and a second wire separation portion 1342, and the first wire separation portion 1341 and the second wire separation portion 1342 are disposed around the outer circumference of the bobbin 100 to divide the first winding slot 131 into at least two first winding spaces 1311.

Alternatively, as shown in fig. 5 and 6, the first thread separation portion 1341 and the second thread separation portion 1342 are substantially clamped at the outer periphery of the bobbin 100, and the first thread separation portion 1341 and the second thread separation portion 1342 form a structure surrounding the outer periphery of the bobbin 100 to divide the first winding groove 131 into at least two first winding spaces 1311. For example, in fig. 4, the first partition 134 divides the first winding slot 131 into two first winding spaces 1311; in fig. 6, two first wire partitioning members 134 partition the first winding slot 131 into three first winding spaces 1311, which will not be described again.

In one embodiment, referring to fig. 5, the first wire separating portions 1341 and the second wire separating portions 1342 are spaced apart from each other to form first wire passing ports 1343, and the first wire passing ports 1343 are used for enabling the first windings to pass through wires between the adjacent first winding spaces 1311.

When the first winding passes from one first winding space 1311 to the other first winding space 1311 during the winding of the first winding wire in the first winding groove 131, the first winding passes through the first wire passage port 1343.

In another embodiment, the first wire separator 134 is annularly disposed and sleeved on the outer circumference of the bobbin 100 to divide the first winding slot 131 into at least two first winding spaces 1311.

Accordingly, the first wire partition 134 is provided with a first wire port 1343, and the first wire port 1343 is used for enabling the first winding to pass through the wire between the adjacent first winding spaces 1311.

In one embodiment, referring to fig. 4 to 6, the winding portion further includes at least one second wire partition 135 disposed on the bobbin 100, at least one portion of the second wire partition 135 is located in the second winding slot 132, and the second wire partition 135 is used for dividing the second winding into at least two portions.

The second wire spacing member 135 may have the same structure as the first wire spacing member 134. For example, the second wire partition 135 includes a third wire partition 1351 and a fourth wire partition 1352, the third wire partition 1351 and the fourth wire partition are disposed around the outer circumference of the bobbin 100 at intervals, and a second wire passing port 1353 is formed between the third wire partition 1351 and the fourth wire partition 1352 at intervals, so as to allow a second winding to pass a wire.

As shown in fig. 4, the second wire partition 1342 partitions the second winding slot 132 into two second winding spaces 1321, which will not be described again.

In one embodiment, the first and second mounting

grooves

111 and 121 are symmetrically arranged with respect to the frame 100.

In one embodiment, referring to fig. 4, the partition 133 is disposed at the middle of the bobbin 100, the first partition 134 divides the first winding slot 131 into at least two equal first winding spaces 1311, and the second partition 135 divides the second winding slot 132 into at least two equal second winding spaces 1321.

Another embodiment provides an inductor, including:

a bobbin 100 for an inductor as described in any of the above embodiments;

the winding is wound on the framework 100 through the winding part;

the first magnetic block 210 and the second magnetic block 220 are both U-shaped magnetic blocks, the first magnetic block 210 is fixed to the frame 100 through the first mounting groove 111, and the second magnetic block 220 is fixed to the frame 100 through the second mounting groove 121.

The inductor adopts the framework 100 for the inductor, so that the first magnetic block 210 and the second magnetic block 220 can be installed by selecting the corresponding first installation groove 111 and second installation groove 121 according to the actual installation space, and the installation of the inductor in different installation spaces is realized.

As shown in fig. 8, the first magnetic block 210 and the second magnetic block 220 are both U-shaped magnetic blocks, and the two U-shaped magnetic blocks are respectively mounted on the right side and the left side of the frame 100 through the first mounting groove 111 and the second mounting groove 121.

For example, if the framework 100 shown in fig. 1 and 2 is used to mount the first magnetic block 210 and the second magnetic block 220, the first mounting groove 111 and the second mounting groove 121 extending longitudinally may be selected to mount the first magnetic block 210 and the second magnetic block 220 vertically, or the first mounting groove 111 and the second mounting groove 121 extending transversely may be selected to mount the first magnetic block 210 and the second magnetic block 220 horizontally, so as to select different mounting manners for different height/width limiting scenarios, and no further description is given.

In the embodiment shown in fig. 8, the ring-shaped slot is divided into a right first winding slot 131 and a left second winding slot 132 by a partition 133, the right first winding slot 131 is divided into two first winding spaces 1311 by a first partition 134, and the left second winding slot 132 is divided into two second winding slots 132 by a second partition 135. With such an arrangement, on one hand, a first winding is wound in the first winding slot 131, and a second winding is wound in the second winding slot 132, and the first winding is divided into two parts, and the second winding is divided into two parts, so as to form a differential mode and common mode integrated inductor.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A framework for an inductor is characterized in that the framework is provided with a winding portion, a first installation portion and a second installation portion, the winding portion is used for arranging windings, and the first installation portion and the second installation portion are respectively arranged at two opposite ends of the framework;

2. The framework for an inductor according to claim 1, wherein at least two of the first mounting grooves have different extending directions; the extending directions of the at least two second mounting grooves are different, so that the second mounting grooves correspond to the first mounting grooves one to one.

3. The bobbin for an inductor according to claim 2, wherein the first mounting portion further has a first fitting groove for fitting with a first fitting portion of the first magnetic block, one end of all the first fitting grooves extending to the first fitting groove;

4. The bobbin for an inductor according to any one of claims 1 to 3, wherein the winding part has a first winding slot for winding a first winding and a second winding slot for winding a second winding to form a common mode inductance.

5. The bobbin for an inductor according to claim 4, wherein the bobbin has an annular groove provided around an outer periphery of the bobbin, and the winding portion includes a partition provided on the bobbin for dividing the annular groove into the first winding groove and the second winding groove.

6. The bobbin for an inductor according to claim 4, wherein the winding portion includes at least one first spacer provided on the bobbin, at least a portion of the first spacer being located in the first winding slot, the first spacer being configured to separate the first winding into at least two portions to form a differential mode inductance.

7. The bobbin for an inductor according to claim 6, wherein the first wire partition member includes a first wire partition portion and a second wire partition portion, the first wire partition portion and the second wire partition portion being provided around an outer circumference of the bobbin to partition the first winding groove into at least two first winding spaces;

8. The bobbin for an inductor according to claim 7, wherein the first wire partition member is annularly disposed and fitted around an outer circumference of the bobbin to divide the first winding groove into at least two first winding spaces.

9. The bobbin for an inductor according to claim 6, wherein the winding portion further comprises at least one second wire separator provided on the bobbin, at least a portion of the second wire separator being located in the second winding slot, the second wire separator being configured to separate the second winding into at least two portions.

10. An inductor, comprising:

a skeleton for an inductor according to any one of claims 1-9;

the winding is wound on the framework through the winding part;