CN210896933U

CN210896933U - Inductor

Info

Publication number: CN210896933U
Application number: CN201922114921.1U
Authority: CN
Inventors: 张立品; 鞠万金; 袁志军
Original assignee: SHENZHEN JINGQUANHUA ELECTRONICS CO LTD
Current assignee: SHENZHEN JINGQUANHUA ELECTRONICS CO LTD
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-06-30
Anticipated expiration: 2029-11-28

Abstract

The utility model provides an inductor, the inductor includes base, magnetic core group, skeleton and coil, the coil is around locating on the skeleton, the skeleton cover is located the magnetic core group, the radiating groove has been seted up to the skeleton, forms hollow out construction, the magnetic core group the skeleton reaches the coil set up in the base in the lump.

Description

Inductor

Technical Field

The utility model relates to a power technical field especially relates to an inductor.

Background

This section is intended to provide a background or context to the particular embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

The inductor is an element capable of converting electric energy into magnetic energy to be stored, main components comprise a coil, a framework and a magnetic core, the main function of the inductor is to prevent the change of current, and the framework is generally required to be used as a carrier to assemble the coil and the magnetic core.

When the framework is adopted to assemble the coil and the magnetic core in the prior art, the space utilization rate after assembly is not high, and the heat dissipation effect is not good.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an inductor with high space utilization and better heat dissipation effect.

Preferably, the base includes a bottom plate, the bottom plate is provided with accommodating portions, each accommodating portion includes a part of the bottom plate and a supporting portion disposed on the first surface of the bottom plate, the supporting portion and a part of the bottom plate are surrounded to form an accommodating groove, the magnetic core group is disposed on the supporting portion, and the coil and the bobbin portion are accommodated in the accommodating portion.

Preferably, the supporting portion includes four supporting pillars disposed at top corners of the accommodating portion, the supporting pillars are respectively located at two sides of the bottom plate, the supporting pillars at each side are located on the same straight line, and two adjacent supporting pillars of the accommodating portion are spliced together.

Preferably, the two diagonal supporting column surfaces are provided with a convex rib at one end facing the accommodating part.

Preferably, the coil is a hollow cylinder structure formed by a metal cable in a surrounding mode, the coil comprises a first pin and a second pin, and the first pin and the second pin respectively extend out of two sides of the coil.

Preferably, each accommodating portion further includes a first pin portion and a second pin portion, the first pin portion and the second pin portion are respectively disposed on the second surface of the bottom plate and located at two sides of the bottom plate, the first pin portion and the second pin portion are respectively and longitudinally provided with a pin slot, the pin slot penetrates through the bottom plate, and the first pin and the second pin are accommodated in the pin slot.

Preferably, the side surface of the pin slot has an opening, and the first pin and the second pin are respectively embedded into the pin slot through the opening and exposed from the end of the pin slot.

Preferably, the magnetic core group includes a pair of oppositely disposed magnetic cores, each magnetic core includes a bottom, a core and two corresponding ends, the core is formed by a middle protrusion of the bottom, the ends are formed by two opposite protrusions of the bottom, the protruding direction of the core is the same as the protruding direction of the core, and the core is sleeved with the skeleton.

Preferably, the end part is provided with an embedded groove, and the embedded groove is matched with the base.

Preferably, the skeleton includes the main part and the protruding a pair of flanges that set up relatively that locate the main part both ends, the radiating groove has been seted up to the main part, and the cover is located the magnetic core group, the coil is around locating the main part, the flange is located the coil both ends.

The utility model provides an inductor can be with a plurality of magnetic core group, skeleton and coil equipment are as an organic whole, can save installation space. The hollow structure of the framework enables heat generated during working of the magnetic core to be better distributed, and accordingly a better heat dissipation effect is obtained.

Drawings

In order to more clearly illustrate the technical solution of the embodiments/modes of the present invention, the drawings needed to be used in the description of the embodiments/modes are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments/modes of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an inductor according to an embodiment of the present invention.

Fig. 2 is an exploded view of the inductor shown in fig. 1.

Description of the main elements

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, fig. 1 is a diagram illustrating an inductor 100 according to a preferred embodiment of the present invention, in the preferred embodiment, the inductor 100 is a Power Factor Correction (PFC) inductor.

The inductor 100 includes a base 10, a core assembly 20, a bobbin 30, and a coil 40. The coil 40 is wound on the framework 30, the framework 30 is sleeved on the magnetic core group 20, and the magnetic core group 20, the framework 30 and the coil 40 are arranged on the base 10 together. In the preferred embodiment, the number of the magnetic core groups 20, the bobbins 30 and the coils 40 is 3, and it can be understood that the number of the magnetic core groups 20, the bobbins 30 and the coils 40 can also be increased or decreased according to actual requirements. The inductor 100 of the present invention preferably has a plurality of magnetic core assemblies 20, a plurality of skeletons 30 and a plurality of coils 40 assembled together by the base 10, thereby saving the installation space.

Referring to fig. 2, the base 10 includes a bottom plate 11, and in the preferred embodiment, the bottom plate 11 is a rectangular plate and includes a first surface 11a and a second surface 11b opposite to each other. The bottom plate 11 is provided with a receiving portion 10 a. The number of the accommodating parts 10a is the same as the number of the magnetic core groups 20, the bobbin 30 and the coils 40, and in the preferred embodiment, the bottom plate 11 is provided with 3 accommodating parts 10a, it can be understood that the number of the accommodating parts 10a can be increased or decreased according to actual needs.

Each accommodating portion 10a includes a part of the bottom plate 11 and a supporting portion 12 disposed on the first surface 11a of the bottom plate 11, the supporting portion 12 and the part of the bottom plate 11 enclose the accommodating portion 10a, the magnetic core group 20 is disposed on the supporting portion 12, and the bobbin 30 and the coil 40 are partially accommodated in the accommodating portion 10 a.

In the preferred embodiment, the supporting portion 12 includes four supporting columns 121 disposed at the top corners of the accommodating portion 10 a. The supporting columns 121 are respectively located at two sides of the bottom plate 11, the supporting columns 121 at each side are located on the same straight line, and two supporting columns 121 of adjacent accommodating parts 10a are spliced together.

In the preferred embodiment, the two diagonal supporting columns 121 are provided with a rib 122 at one end facing the accommodating portion 10 a. The protruding ribs 122 are used for preventing the magnetic core assembly 20 arranged on the protruding ribs from shaking.

In the preferred embodiment, each accommodating portion 10a further includes a first lead portion 13 and a second lead portion 14, the first lead portion 13 and the second lead portion 14 are respectively disposed on the second surface 11b of the bottom plate 11 and located at two sides of the bottom plate 11, the first lead portion 13 and the second lead portion 14 are respectively provided with a lead slot 131 in the longitudinal direction, the lead slot 131 penetrates through the bottom plate 11, and a side surface of the lead slot 131 has an opening 132. The leads (e.g., the first lead 41 and the second lead 42) of the coil 40 can be inserted into the lead slots 131 from the openings 132, thereby facilitating assembly.

The magnetic core group 20 comprises a pair of oppositely arranged magnetic cores 20a, each magnetic core 20a comprises a bottom 21, a core 22 and two corresponding end parts 23, the core 22 is formed by the middle bulge of the bottom 21, the end parts 23 are formed by the opposite end bulges of the bottom 21, and the bulge direction is the same as the bulge direction of the core 22. The side of the end portion 23 facing the bottom plate 11 is provided with an insertion groove 231, and the insertion groove 231 can be matched with the protruding rib 122 of the supporting column 121 of the base 10, so that the magnetic core 20a is fixed relative to the base 10, and dispensing between the base 10 and the magnetic core 20a is not required. The shape of the core 22 is identical to that of the bobbin 30, the bobbin 30 is sleeved on the core 22, and the inner surface of the end portion 23 is arc-shaped and is identical to the outer contour of the coil 40.

The frame 30 includes a main body 31 and a pair of flanges 32 protruding from two ends of the main body 31 and disposed opposite to each other. In the preferred embodiment, the main body 31 is a hollow cylindrical body, the main body 31 of the frame 30 is provided with a heat dissipation groove 321 penetrating the main body 31 to form a hollow structure, and the main body 31 is sleeved on the core 22. In the preferred embodiment, the main body 31 has a plurality of heat dissipation grooves 321, and the heat dissipation grooves are sequentially arranged at intervals on the main body 31. The hollow structure of the framework 30 enables the heat generated when the magnetic core 20a works to be better dissipated, so that a better heat dissipation effect is obtained. The flanges 32 are located at both ends of the coil 40 for preventing the coil 40 from falling off the bobbin 30.

The coil 40 is a hollow cylindrical structure formed by a metal cable in a surrounding manner, and includes a first pin 41 and a second pin 42, and the first pin 41 and the second pin 42 respectively extend out from two sides of the coil 40. The coil 40 can be formed by winding a round wire or a flat wire or a twisted wire, which is convenient for users to select materials.

During assembly, the coil 40 is wound around the main body 31 of the bobbin 30, and then the main body 31 is sleeved on the core portions 22 of the two magnetic cores 20a in the same magnetic core group 20. The magnetic core 20a is disposed on the support portion 12 such that the bottom portion 21 is disposed on the support portion 12 and the insertion groove 231 is engaged with the support post 121. The first lead 41 and the second lead 42 are respectively inserted into the lead slot 131 through the opening 132.

In the embodiment of the present invention, the inductor 100 may be assembled with a plurality of magnetic core assemblies 20, the frame 30 and the coil 40, so as to save the installation space. The hollow structure of the framework 30 enables the heat generated when the magnetic core 20a works to be better dissipated, so that a better heat dissipation effect is obtained. The leads (e.g., the first lead 41 and the second lead 42) of the coil 40 can be inserted into the lead slots 131 from the openings 132, thereby facilitating assembly. The insertion groove 231 may be engaged with the support post 121 of the base 10, so that the magnetic core 20a is fixed relative to the base 10, thereby dispensing with the base 10 and the magnetic core 20 a.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. Several of the means recited in the apparatus claims may also be embodied by one and the same means or system in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An inductor, characterized by: the inductor includes base, magnetic core group, skeleton and coil, the coil is around locating on the skeleton, the skeleton cover is located the magnetic core group, the radiating groove has been seted up to the skeleton, forms hollow out construction, the magnetic core group the skeleton reaches the coil set up in the base in the lump.

2. The inductor of claim 1, wherein: the base comprises a bottom plate, the bottom plate is provided with accommodating parts, each accommodating part comprises a part of bottom plate and a supporting part arranged on the first surface of the bottom plate, the supporting parts and part of the bottom plate are surrounded to form accommodating grooves, the magnetic core group is arranged on the supporting parts, and the coil and the framework part are accommodated in the accommodating parts.

3. The inductor of claim 2, wherein: the supporting part comprises four supporting columns arranged at the top corners of the accommodating part, the supporting columns are respectively positioned at two sides of the bottom plate, the supporting columns at each side are positioned on the same straight line, and the two adjacent supporting columns of the accommodating part are spliced together.

4. The inductor of claim 3, wherein: and one end of the surface of each of the two support columns positioned on the diagonal line, which faces the accommodating part, is provided with a convex edge.

5. The inductor of claim 4, wherein: the coil is a hollow cylinder structure formed by surrounding a metal cable, and comprises a first pin and a second pin, wherein the first pin and the second pin respectively extend out of two sides of the coil.

6. The inductor of claim 5, wherein: each accommodating part further comprises a first pin part and a second pin part, the first pin part and the second pin part are respectively arranged on the second surface of the bottom plate and are positioned on two sides of the bottom plate, pin grooves are respectively and longitudinally formed in the first pin part and the second pin part, the pin grooves penetrate through the bottom plate, and the first pins and the second pins are accommodated in the pin grooves.

7. The inductor of claim 6, wherein: the side surface of the pin groove is provided with an opening, and the first pin and the second pin are respectively embedded into the pin groove through the opening and are exposed out of the tail end of the pin groove.

8. The inductor of claim 1, wherein: the magnetic core group includes the magnetic core of a pair of relative setting, and every magnetic core includes bottom, core and two tip that correspond, the core by the middle arch of bottom forms, the tip by the relative both ends arch of bottom forms, its bellied direction with the protruding direction of core is the same, the skeleton cover is located the core.

9. The inductor of claim 8, wherein: the end part is provided with an embedded groove which is matched with the base.

10. The inductor of claim 1, wherein: the skeleton includes that main part and protruding locate a pair of relative flange that sets up at main part both ends, the main part has been seted up the radiating groove, and the cover is located the magnetic core group, the coil is around locating the main part, the flange is located the coil both ends.