CN216928254U

CN216928254U - Inductance element and power supply product

Info

Publication number: CN216928254U
Application number: CN202220430535.2U
Authority: CN
Inventors: 汪洋; 张震; 张剑; 秦龙
Original assignee: Hefei Yangguang Electric Power Technology Co ltd
Current assignee: Hefei Yangguang Electric Power Technology Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-07-08
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses an inductance element and a power supply product, wherein the inductance element comprises a magnetic core structure, a coil and a circuit board, wherein the coil is wound on the magnetic core structure, and the coil is provided with a first connecting end and a second connecting end which are opposite. The circuit board is provided with a mounting via hole, the circuit board is sleeved on the magnetic core structure through the mounting via hole and fixed at the end part of the coil, a plurality of pins are fixed on the circuit board, and two of the pins are respectively connected with the first connecting end and the second connecting end so as to be electrically connected with the coil. The technical scheme of the utility model can reduce the volume of the inductance element and realize the quick installation of the inductance element.

Description

Inductance element and power supply product

Technical Field

The utility model relates to the technical field of inductors, in particular to an inductor element and a power supply product.

Background

In the field of new energy vehicles, particularly in related power supply products, an inductor is a common electronic component. In the prior art, a common structure of an inductor is generally that a coil surrounds a magnetic core and is wrapped and fixed by a plastic package shell, and pins of an inductor element extend out of the plastic package shell to be fixedly connected with an external circuit. According to the scheme, an independent plastic package shell is needed, the size is large, the cost is high, the plastic package shell needs to be fixed through an additional fixing part, the coil is connected with the pins, the fixation is inconvenient, an independent insulating film is needed for insulation, the assembly is not facilitated, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an inductance element, and aims to reduce the volume of the inductance element and realize quick installation of the inductance element.

In order to achieve the above object, the present invention provides an inductance component, including:

the coil is wound on the magnetic core structure and provided with a first connecting end and a second connecting end which are opposite; and

the circuit board is provided with a mounting via hole, the circuit board is sleeved on the magnetic core structure through the mounting via hole and fixed at the end part of the coil, a plurality of pins are fixed on the circuit board, and two of the pins are respectively connected with the first connecting end and the second connecting end so as to be electrically connected with the coil.

Optionally, a first connection hole is formed in one end, facing the circuit board, of the pin connected to the first connection end, a second connection hole is formed in one end, facing the circuit board, of the pin connected to the second connection end, the first connection end is connected to the first connection hole in an inserted mode, and the second connection end is connected to the second connection hole in an inserted mode.

Optionally, the magnetic core structure includes a first magnetic core holder and a second magnetic core holder, the first magnetic core holder includes a first center pillar and a first shell, the second magnetic core holder includes a second center pillar and a second shell, the first shell abuts against an end surface of the second shell, the first center pillar abuts against an end surface of the second center pillar, and the first shell and the second shell are fitted around the first center pillar and the second center pillar.

Optionally, the first housing includes a first connecting plate and two first side columns, the two first side columns are symmetrically disposed with respect to the first central column and are both connected to the same side of the first connecting plate, the second housing includes a second connecting plate and two second side columns, and the two second side columns are symmetrically disposed with respect to the second central column and are both connected to the same side of the second connecting plate.

Optionally, the first side column and the first middle column are both perpendicular to the first connecting plate, and the second side column and the second middle column are both perpendicular to the second connecting plate.

Optionally, the first side column is connected to an edge of the first connecting plate, and the second side column is connected to an edge of the second connecting plate.

Optionally, the first central pillar, the first connecting plate and the first side pillar are an integral structure;

the second middle column, the second connecting plate and the second side column are of an integral structure.

Optionally, the circuit board is disposed between the first connecting plate and the coil, and a first insulating member is disposed between the second connecting plate and the coil.

Optionally, at least one inserting part is arranged on the same side of the first insulating part and the pin, so that the inductance element can be conveniently installed.

Optionally, a second insulator is disposed between the magnetic core structure and the inner ring of the coil.

The utility model also provides a power supply product comprising the inductance element.

According to the technical scheme, the coil is wound on the magnetic core structure and is provided with the first connecting end and the second connecting end which are opposite. The circuit board is provided with a mounting via hole, the circuit board is sleeved on the magnetic core structure through the mounting via hole and fixed at the end part of the coil, a plurality of pins are fixed on the circuit board, and two of the plurality of pins are respectively connected with the first connecting end and the second connecting end so as to be electrically connected with the coil. Adopt the pin to replace the OT terminal promptly to avoided the extra fixed of OT terminal, and when pin and external circuit board installation, can directly peg graft in external circuit board, when realizing that inductance element and external circuit are connected electrically, fixed inductance element, realized inductance element's quick installation. And the circuit board can play an insulating role to the magnetic core structure and the coil while playing a role in bearing the pins, thereby avoiding the scheme of additionally using a plastic package shell and reducing the volume of the whole inductance element. In the production process, the plastic package shell is manufactured by adopting die sinking of a die, the cost is high, and when the circuit board is adopted for insulation and fixation, the die sinking is not needed, the mass production can be realized, and the cost is saved.

Drawings

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

Fig. 1 is a schematic perspective view of an inductance element in the prior art;

fig. 2 is a schematic perspective view of the inductance element in fig. 1;

fig. 3 is a schematic perspective view of an inductance element according to an embodiment of the utility model;

FIG. 4 is an exploded view of the inductive element of FIG. 3;

fig. 5 is a schematic perspective view of a circuit board in the inductance element in fig. 2.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 of the feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the prior art, referring to fig. 1 and fig. 2 in combination, a common structural scheme of an inductor generally adopts a mode that a coil 110 surrounds a magnetic core 120 and is then wrapped and fixed by a plastic package shell 130, wherein the coil 110 is fixed in an inner cavity of the plastic package shell 130, lead wires 140 at two opposite ends of the coil 110 extend out of the plastic package shell 130, and an end portion of the lead wires is connected with an OT terminal 150 to be electrically connected with an external circuit. According to the scheme, the independent plastic package shell 130 is needed, so that a large space is needed, and the plastic package shell 130 and the OT terminal 150 are fixed by the additional fixing structure 160 and are inconvenient to install. In the production process, the plastic package housing 130 needs to be manufactured by opening a mold, so that the cost is high.

Therefore, the present invention provides an inductance element 200, which not only can reduce the volume of the inductance element 200, achieve the fast installation of the inductance element 200, but also can save the manufacturing cost of the inductance element 200.

In the embodiment of the present invention, as shown in fig. 3 to 5, the inductance component 200 includes a magnetic core structure 210, a coil 220 wound around the magnetic core structure 210, and a circuit board 230, wherein the coil 220 has a first connection end 221 and a second connection end 222 opposite to each other. The circuit board 230 is provided with a mounting via hole 231, the circuit board 230 is sleeved on the magnetic core structure 210 through the mounting via hole 231 and fixed at the end of the coil 220, the circuit board 230 is fixed with a plurality of pins 232, and two of the plurality of pins 232 are respectively connected with the first connection end 232 and the second connection end 232 so as to be electrically connected with the coil 220.

In the present embodiment, the coil 220 surrounds the core structure 210, and the core structure 210 is made of a magnetic material, typically ferrite. The circuit board 230 is provided with a mounting via hole 231, the circuit board 230 is sleeved on the magnetic core structure 210 through the mounting via hole 231 and fixed at the end of the coil 220, and the circuit board 230 can be fixed on the magnetic core structure 210 through bonding, clamping, welding and other modes, and can also be connected through screws or pins. A plurality of pins 232 are fixed on the circuit board 230, and two of the plurality of pins 232 are respectively connected to the first connection end 232 and the second connection end 232, so that the pins 232 and the coil 220 are electrically connected. And the pin 232 is used to connect to external circuitry to complete the loop to create the inductance. The circuit board 230 has a plurality of pins 232, i.e. the number of the pins is greater than one, and at least two pins 232 are provided, so as to be respectively connected with the first connection end 232 and the second connection end 232, so that the two pins 232 are different from the material of the circuit board 230, and are usually formed by attaching a copper mold to the side of the circuit board 230. When the circuit board 230 is provided with two pins 232, the two pins 232 are made of different materials from the circuit board, and the two pins can be directly inserted into the external circuit board 230, so that the inductive element 200 can be conveniently and electrically connected with an external circuit, and the inductive element 200 can be conveniently fixed; when the number of the pins 232 arranged on the circuit board 230 is greater than two, the two pins 232 respectively connected with the first connection end 232 and the second connection end 232 are made of different materials from the circuit board 230, the remaining pins and the circuit board 230 can be made of the same material, and the plurality of pins are directly inserted into the external circuit board 230 together, so that the inductive element 200 can be conveniently fixed.

According to the technical scheme of the utility model, the coil 220 is wound on the magnetic core structure 210, and the coil 220 is provided with a first connecting end 221 and a second connecting end 222 which are opposite. The circuit board 230 is provided with a mounting via hole 231, the circuit board 230 is sleeved on the magnetic core structure 210 through the mounting via hole 231 and fixed at the end of the coil 220, the circuit board 230 is fixed with a plurality of pins 232, and two of the plurality of pins 232 are respectively connected with the first connection end 232 and the second connection end 232 so as to be electrically connected with the coil 220. That is, the pin 232 is used to replace the OT terminal 150, so that additional fixation of the OT terminal 150 is avoided, and when the pin 232 is mounted on the external circuit board 230, the pin 232 can be directly inserted into the external circuit board 230, so that the inductive element 200 is fixed while the inductive element 200 is electrically connected with the external circuit, and the inductive element 200 is rapidly mounted. And the circuit board 230 plays a role in insulating the magnetic core structure 210 and the coil 220 while playing a role in bearing the pins 232, thereby avoiding the scheme of additionally using the plastic package shell 130, and reducing the volume of the whole inductance element 200. In the production process, the plastic package shell 130 is manufactured by opening a die, so that the cost is high, and when the circuit board is used for insulation and fixation, the die opening is not needed, so that mass production can be realized, and the cost is saved.

To facilitate the electrical connection between the first connection end 221 and the second connection end 222 and the two pins 232, in an embodiment, the pin 232 connected to the first connection end 221 has a first connection hole 234 at an end facing the circuit board 230, the pin 232 connected to the second connection end 222 has a second connection hole 235 at an end facing the circuit board 230, the first connection end 221 is inserted into the first connection hole 234, and the second connection end 222 is inserted into the second connection hole 235. Specifically, the first connection end 221 is inserted into the first connection hole 234, and the second connection end 222 is inserted into the second connection hole 235, and is fixed by welding, so that the installation stability of the first connection end 221 and the second connection end 222 and the two pins 232 is increased.

Referring to fig. 3 and 4 in combination, in an embodiment, the magnetic core structure 210 includes a first magnetic core holder 240 and a second magnetic core holder 250, the first magnetic core holder 240 includes a first center pillar 241 and a first shell 242, the second magnetic core holder 250 includes a second center pillar 251 and a second shell 252, the first shell 242 abuts an end surface of the second shell 252, the first center pillar 241 abuts an end surface of the second center pillar 251, and the first shell 242 and the second shell 252 fit around the first center pillar 241 and the second center pillar 251. Specifically, the first core holder 240 and the second core holder 250 are symmetrically disposed with respect to each other, the first shell 242 abuts against an end surface of the second shell 252, the first center pillar 241 abuts against an end surface of the second center pillar 251, so as to pass through the coil 220, perform an excitation function and simultaneously perform a function of supporting the coil 220, and the first shell 242 and the second shell 252 are fitted around the first center pillar 241 and the second center pillar 251. The first shell 242 and the second shell 252 surround the surrounding portion of the coil 220 formed by the first center pillar 241 and the second center pillar 251, and perform an excitation function and a limiting function on the coil 220.

In one embodiment, the first housing 242 includes a first connecting plate 243 and two first side posts 244, the two first side posts 244 are symmetrically disposed with respect to the first center post 241 and are connected to the same side of the first connecting plate 243, the second housing 252 includes a second connecting plate 253 and two second side posts 254, and the two second side posts 254 are symmetrically disposed with respect to the second center post 251 and are connected to the same side of the second connecting plate 253. Specifically, the two first side pillars 244 and the first center pillar 241 are located on the same side of the first connecting plate 243, and the two first side pillars 244 are respectively disposed at two ends of the first center pillar 241 to limit the position of the coil 220. The two second side pillars 254 and the second center pillar 251 are located on the same side of the second connecting plate 253, and the two second side pillars 254 are respectively disposed at two ends of the second center pillar 251 to limit the position of the coil 220.

Alternatively, the first side pillar 244 and the first center pillar 241 are disposed perpendicular to the first connection plate 243, and the second side pillar 254 and the second center pillar 251 are disposed perpendicular to the second connection plate 253. Thereby facilitating the processing of the first core print 240 and the second core print 250.

Further, a first side post 244 is attached to an edge of the first connecting plate 243, and a second side post 254 is attached to an edge of the second connecting plate 253. Specifically, the first side column 244 and the first connecting plate 243, and the second side column 254 and the second connecting plate 253 are connected by edges, which not only facilitates the processing of the first magnetic core holder 240 and the second magnetic core holder 250, but also improves the appearance integrity of the first magnetic core holder 240 and the second magnetic core holder 250.

Furthermore, the first center pillar 241, the first connecting plate 243 and the first side pillar 244 are integrated, and the integrated structure is adopted, so that the first magnetic core holder 240 is convenient to process, the assembling processes of the first center pillar 241, the first connecting plate 243 and the first side pillar 244 are reduced, and the structural stability of the first magnetic core holder 240 is enhanced. Of course, in other embodiments, the first center pillar 241, the first connecting plate 243 and the first side pillar 244 may be formed as a separate structure.

In another embodiment, the second center pillar 251, the second connecting plate 253 and the second side pillar 254 are integrally formed, which not only facilitates the processing of the second core print 250, but also reduces the assembling steps of the second center pillar 251, the second connecting plate 253 and the second side pillar 254, thereby enhancing the structural stability of the second core print 250. Of course, in other embodiments, the second center pillar 251, the second connecting plate 253 and the second side pillar 254 can be formed in a split structure.

Referring again to fig. 3 to 4, in an embodiment, the circuit board 230 is disposed between the first connecting plate 243 and the coil 220, and the first insulating member 260 is disposed between the second connecting plate 253 and the coil 220. Specifically, the circuit board 230 is disposed between the first connection plate 243 and the coil 220, so as to facilitate the electrical connection between the first connection end 221 and the second connection end 222 and the two pins 232, and insulate the first connection plate 243 from the coil 220. The first insulating member 260 is disposed between the second connecting plate 253 and the coil 220, so as to insulate the second connecting plate 253 from the coil 220, and the first insulating member 260 may also use the circuit board 230, but does not participate in the electrical circuit of the inductance component 200, in order to reduce the manufacturing process.

Further, in an embodiment, the first insulating member 260 is provided with at least one inserting portion 261 on the same side as the pin 232 to facilitate the installation of the inductance element 200. Specifically, the inserting portion 261 may be inserted into the external circuit board 230, so as to play a role of mounting the auxiliary pin 232, and enhance the mounting stability of the inductance component 200.

In one embodiment, a second insulator 270 is disposed between the magnetic core structure 210 and the inner ring of the coil 220. Specifically, the second insulator 270 is wrapped in the inner ring of the coil 220, and the first center pillar 241 and the second center pillar 251 are inserted into the inner ring formed by the second insulator 270, so that the second insulator 270 is located between the magnetic structure and the inner ring of the coil 220 to perform an insulating function.

The present invention further provides a power supply product, which includes an inductance element, and the specific structure of the inductance element refers to the above embodiments, and since the power supply product adopts all the technical solutions of all the above embodiments, the power supply product at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An inductive component, comprising:

2. The inductance element according to claim 1, wherein one end of the pin connected to the first connection end facing the circuit board is provided with a first connection hole, one end of the pin connected to the second connection end facing the circuit board is provided with a second connection hole, the first connection end is inserted into the first connection hole, and the second connection end is inserted into the second connection hole.

3. The inductance component of claim 1, wherein said magnetic core structure comprises a first core holder and a second core holder, said first core holder comprising a first center leg and a first case, said second core holder comprising a second center leg and a second case, said first case abutting an end surface of said second case, said first center leg abutting an end surface of said second center leg, said first case and said second case fitting around said first center leg and said second center leg.

4. The inductance component of claim 3, wherein said first case includes a first connection plate and two first side posts, both of said first side posts being symmetrically disposed with respect to said first center post and both being connected to the same side of said first connection plate, and said second case includes a second connection plate and two second side posts, both of said second side posts being symmetrically disposed with respect to said second center post and both being connected to the same side of said second connection plate.

5. The inductance component of claim 4, wherein said first side leg and said first center leg are each disposed perpendicular to said first connection plate, and said second side leg and said second center leg are each disposed perpendicular to said second connection plate.

6. The inductive element of claim 5, wherein said first leg is attached to an edge of said first connection plate and said second leg is attached to an edge of said second connection plate.

7. The inductance element according to claim 4, wherein said first central pillar, said first connecting plate and said first side pillar are an integral structure;

8. The inductance component of claim 4, wherein said circuit board is disposed between said first connection plate and said coil, and a first insulating member is disposed between said second connection plate and said coil.

9. The inductor component of claim 8, wherein the first insulator is provided with at least one plug-in portion on a side thereof opposite the leads for facilitating mounting of the inductor component.

10. An inductive component according to any one of claims 1 to 9, characterized in that a second insulating member is provided between the core structure and the inner loop of the coil.

11. A power supply product, characterized by comprising an inductive element according to any one of claims 1 to 10.