CN221262120U

CN221262120U - Combined type encapsulation inductor

Info

Publication number: CN221262120U
Application number: CN202322955657.0U
Authority: CN
Inventors: 丁庆
Original assignee: Hefei Yunlu Juneng Electric Co ltd
Current assignee: Hefei Yunlu Juneng Electric Co ltd
Filing date: 2023-10-31
Publication date: 2024-07-02
Anticipated expiration: 2033-10-31

Abstract

The utility model relates to a combined type potting inductor, which comprises a box body, a filter inductor, a first wire, an inverter inductor, a second wire and potting adhesive, wherein the box body is provided with a first wire and a second wire; the box body comprises a cavity with an opening, and two inductors are arranged in the cavity; the filter inductor comprises a first pin and a second pin; one end of the first lead is connected with the first pin, and the other end extends out of the cavity; the inverting inductor comprises a third pin and a fourth pin and is connected with the filter inductor through the third pin; one end of the second lead is connected with the fourth pin, and the other end extends out of the cavity; the pouring sealant is poured into the cavity from the opening and completely covers the filter inductor and the inverter inductor. The combined type encapsulating inductor provided by the utility model can realize the functions of filtering and energy storage simultaneously, has the advantages of simple production process, lower cost and small volume, and is favorable for the miniaturization development of an energy storage inverter.

Description

Combined type encapsulation inductor

Technical Field

The utility model belongs to the technical field of electronic elements, and particularly relates to a combined type encapsulated inductor.

Background

An energy storage inverter, also called an energy storage converter (english name Power Conversion System, abbreviated as PCS), is an important energy conversion device that functions to convert electric energy from one form to another and to ensure efficient use of energy. The energy storage inverter core component comprises an inductance element, a capacitance element, a switching tube and a control circuit. The inductance element comprises a filter inductance and an inverter inductance.

In the prior art, two mutually independent filter inductors and inverter inductors are usually fixed in an energy storage inverter respectively, electromagnetic interference is easily caused between the two inductors and other electronic elements in the installation mode, the total volume of the two inductors is overlarge, the inverter miniaturization development is not facilitated, and aiming at the problems, the common solution is to adopt a potting inductor. For the potting inductor, some designs exist in the prior art, but the potting inductor in the prior art is single in function, can not realize filtering and energy storage functions at the same time, and can not meet the functional requirements of an energy storage inverter.

Disclosure of utility model

The utility model aims to solve one of the technical problems and provides a combined type encapsulated inductor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

A combined encapsulated inductor, comprising:

A case comprising a cavity having an opening;

The filter inductor is arranged in the cavity of the box body and comprises a first pin and a second pin;

one end of the first lead is connected with the first pin, and the other end of the first lead extends out of the cavity;

The inverting inductor is arranged in the cavity of the box body and comprises a third pin and a fourth pin, and the third pin is connected with the second pin;

one end of the second lead is connected with the fourth pin, and the other end of the second lead extends out of the cavity;

pouring sealant is poured into the cavity from the opening and completely covers the filter inductor and the inverter inductor.

The technical scheme solves the technical problems that the existing encapsulating inductor has single function and cannot realize energy storage and filtering functions simultaneously, and the filtering and energy storage functions can be realized simultaneously by connecting the filtering inductor and the inverter inductor in series and encapsulating the filtering inductor and the inverter inductor into the same box body, and the overall volume of the two inductors is effectively reduced.

In some embodiments of the present utility model, the second pin is connected to the third pin through a third wire.

In some embodiments of the utility model, the method further comprises a fourth wire; one end of the fourth wire extends out of the cavity, and the other end of the fourth wire is connected to the joint of the third wire and the second pin or the joint of the third wire and the third pin.

In some embodiments of the present utility model, the first wires include two wires, one ends of the two first wires are connected to the first pins, and the other ends of the two first wires extend out of the cavity.

In some embodiments of the present utility model, the second wires include two wires, one ends of the two second wires are connected to the fourth pin, and the other ends of the two second wires extend out of the cavity.

In some embodiments of the utility model, the filter inductor comprises a first magnetic pillar and a first coil; the first coil is sleeved outside the first magnetic column and is formed by spirally winding a single-layer flat wire body; the first coil includes a first pin and a second pin.

In some embodiments of the utility model, the inverting inductor comprises two second magnetic columns and two second coils; the two second coils are respectively sleeved outside the two second magnetic columns; the two second coils are formed by spirally winding a single-layer flat wire body, and are connected with each other, wherein one second coil comprises a third pin, and the other second coil comprises a fourth pin.

In some embodiments of the present utility model, the box body is provided with a mounting hole for fixing the box body.

In some embodiments of the utility model, a sealing groove for attaching a sealing rubber strip is formed on the outer wall of the box body at the opening, and the sealing groove surrounds the opening.

In some embodiments of the present utility model, the heat dissipation fins are further included, and are respectively installed on the outer peripheral wall of the case.

The utility model has the beneficial effects that:

1. The combined type encapsulating inductor provided by the utility model combines the filtering inductor and the inversion inductor in series, so that the filtering and energy storage functions can be realized, the whole volume of the two inductors is reduced, and the miniaturization development of the energy storage inverter is facilitated;

2. according to the combined type encapsulating inductor provided by the utility model, the filtering inductor and the inverting inductor are combined and encapsulated into the box body at the same time, so that electromagnetic interference of other electronic elements in a circuit can be effectively shielded;

3. According to the combined encapsulating inductor provided by the utility model, the first pin and the second pin are connected with two wires for shunt, so that the situation that a client connecting row with larger current in a circuit cannot bear the current can be prevented;

4. The sealing groove for attaching the sealing adhesive tape is formed in the combined type encapsulation inductor box body, and substances such as external dust can be prevented from entering the encapsulation inductor to damage the inductor after the combined type encapsulation inductor is installed;

5. The radiating fins are arranged outside the combined type encapsulated inductor box body, and the radiating fins are arranged to form the radiating air duct, so that heat generated in the working process of the inductor can be effectively dissipated, the working efficiency of the inductor is improved, and the inductor is prevented from being damaged;

6. The combined encapsulated inductor provided by the utility model has the advantages that the production process is simple, the operation steps are few, compared with the production of two independent physical inductors, the same inductor assembly process is not required to be repeated twice, the production time and the labor cost are effectively reduced, and the production efficiency of the inductor is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings, from which other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic perspective view of a combined encapsulated inductor according to the present utility model;

fig. 2 is a schematic diagram of a front structure of a combined encapsulated inductor according to the present utility model;

FIG. 3 is a schematic diagram of a filter inductor according to the present utility model;

Fig. 4 is a schematic structural diagram of an inverter inductor according to the present utility model;

wherein, the reference numerals are as follows:

1. A case body; 11. a mounting hole; 12. sealing grooves; 2. a filter inductance; 21. a first coil; 211. a first pin; 212. a second pin; 22. a first magnetic pillar; 3. an inversion inductor; 31. a second coil; 311. a third pin; 312. a fourth pin; 32. a second magnetic pillar; 4. a first wire; 5. a second wire; 6. a third wire; 7. a fourth wire; 8. and a heat radiating fin.

Detailed Description

The present application will be described and illustrated with reference to the accompanying drawings and examples in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. All other embodiments, which can be made by a person of ordinary skill in the art based on the embodiments provided by the present application without making any inventive effort, are intended to fall within the scope of the present application.

It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is possible for those of ordinary skill in the art to apply the present application to other similar situations according to these drawings without inventive effort.

The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "a" and "an" and "the" and similar referents in the context of describing the application are not intended to be limiting in number but may be construed to mean in the singular or in the plural. The terms "comprising," "including," "having," and any variations thereof, are intended to cover a non-exclusive inclusion.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-4, in an exemplary embodiment of a combined potting inductor of the present utility model, the combined potting inductor is suitable for a high-power energy storage inverter, and is a low-pass filtered high-frequency inductor, and includes a box 1, a filter inductor 2, a first wire 4, an inverter inductor 3, a second wire 5, and a potting adhesive (not shown).

The box body 1 is a potting box and is used for potting an inductor, the inside of the potting box comprises a cavity with a rectangular opening, and the rectangular opening is formed in the upper surface of the box body 1.

The filter inductor 2 is used for filtering high-frequency noise and low-frequency clutter in a circuit, so that purity and stability of an output alternating current signal are guaranteed, and the filter inductor 2 is arranged in a cavity of the box body 1 and comprises at least one coil, and the coil forming the filter inductor 2 comprises a first pin 211 and a second pin 212.

The first wire 4 is AWG 4 wire according to american wire gauge, one end of which is connected to the first pin 211 in the filter inductor 2, and the other end of which extends out of the cavity through the opening on the upper surface of the case 1.

The inverter inductor 3 is used for storing electric energy to improve the output power and efficiency of the inverter, and is arranged in the cavity of the box body 1, connected with the filter inductor 2 and arranged at intervals. The inverter inductor 3 comprises at least one coil, and the coil forming the inverter inductor 3 comprises a third pin 311 and a fourth pin 312, wherein the third pin 311 is connected with the second pin 212 in the filter inductor 2;

The first wire 4 is AWG 4 wire according to american wire gauge, and has one end connected to the fourth pin 312 and the other end extending out of the cavity through the opening in the upper surface of the case 1.

The pouring sealant is used for conducting heat, and can conduct heat inside the filter inductor 2 and the inverter inductor 3 to the outside during working, so that induction damage or efficiency reduction caused by heating in the working process of the inductor is prevented. Pouring sealant is placed and connected with the filter inductor 2 and the inverter inductor 3 in the box body 1 and then poured into the cavity from the opening until the filter inductor 2 and the inverter inductor 3 are completely covered.

The technical scheme solves the technical problems that the existing encapsulating inductor has single function and cannot realize energy storage and filtering functions simultaneously, and the filtering and energy storage functions can be realized simultaneously by connecting the filtering inductor 2 and the inverter inductor 3 in series and encapsulating the filtering inductor and the inverter inductor into the same box body 1, and the overall volume of the two inductors is effectively reduced.

In some embodiments of the present utility model, the third conductive wire 6 is an AWG 2 electric wire according to the american wire gauge, and is used to connect the filter inductor 2 and the inverter inductor 3, one end of which is connected to the second pin 212, and the other end of which is connected to the third pin 311.

In some embodiments of the present utility model, the AWG 10 electronic wire is further provided with a fourth wire 7, wherein the fourth wire 7 is an AWG 10 electronic wire conforming to the american wire gauge, one end of the fourth wire 7 extends out of the cavity through the opening on the upper surface of the case 1, and the other end is connected to the connection between the third wire 6 and the second pin 212 or to the connection between the third wire 6 and the third pin 311. In the present embodiment, the fourth wire 7 is connected to the connection portion between the third wire 6 and the third pin 311.

In some embodiments of the present utility model, in order to prevent the connection row of the client terminal with larger current in the circuit from being unable to bear, two first wires 4 are provided for shunting, the two first wires 4 are AWG 4 electric wires conforming to the american wire gauge, one ends of the two first wires 4 are connected with the first pins 211 in the filter inductor 2, and the other ends extend out of the cavity through the opening on the upper surface of the box body 1.

In some embodiments of the present utility model, to further prevent the connection row of the client with larger current in the circuit from being unable to bear, two second wires 5 are provided for shunting, the two second wires 5 are AWG 4 electric wires conforming to the american wire gauge, one ends of the two second wires 5 are connected with the fourth pin 312 in the inverter inductor 3, and the other ends extend out of the cavity through the opening on the upper surface of the box body 1.

In some embodiments of the present utility model, the filter inductor 2 includes a first magnetic pillar 22 and a first coil 21. The first coil 21 is sleeved outside the first magnetic column 22 and is formed by spirally winding a single-layer flat enameled wire, the first coil 21 comprises two leading-out ends after winding is completed, the two leading-out ends are respectively connected with a first pin 211 and a second pin 212, and the first pin 211 and the second pin 212 are integrally formed with the first coil 21.

In some embodiments of the present utility model, the inverter inductor 3 includes two second magnetic poles 32 and two second coils 31. The two second coils 31 are respectively sleeved outside the two second magnetic columns 32; the two second coils 31 are formed by spirally winding the same single-layer flat enameled wire, the two second coils 31 are connected with each other, each second coil 31 comprises a leading-out end after winding is completed, the leading-out end of one second coil 31 is connected with a third pin 311, the leading-out end of the other second coil 31 is connected with a fourth pin 312, and the third pin 311 and the fourth pin 312 are formed uniformly with the second coils 31 which are connected with each other.

Further, the inverter inductor 3 further includes two oval magnetic cores, and the two oval magnetic cores are respectively disposed at two ends of the second magnetic pillar 32.

Further, the inverter inductor 3 further includes two insulating plates, the two insulating plates are respectively disposed at two ends of the second coil 31, that is, between the second coil 31 and the magnetic cores corresponding to the two ends, each insulating plate is provided with two circular holes, and the two second magnetic columns 32 respectively penetrate through the two circular holes.

In some embodiments of the present utility model, four mounting holes 11 for fixing the box 1 are formed in the box 1, and the four mounting holes 11 are respectively disposed at four corners of the rectangular opening on the upper surface of the box 1.

In some embodiments of the present utility model, a U-shaped sealing groove 12 for attaching a sealing adhesive tape is further formed on the outer wall of the opening on the upper surface of the box body 1, and the sealing groove 12 is connected end to form a rectangle, which completely surrounds the rectangular opening on the upper surface of the box body 1 and the mounting holes 11 at four corners of the opening.

In some embodiments of the present utility model, in order to further dissipate heat generated by the inductance operation, the present utility model further includes a plurality of heat dissipation fins 8 respectively installed on the outer wall around the case 1 and the bottom of the case 1, and the heat dissipation fins 8 are disposed at intervals to form a heat dissipation air channel.

Finally, it should be noted that: in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims

1. A combined encapsulated inductor, comprising:

A case comprising a cavity having an opening;

Pouring sealant is poured into the cavity from the opening, and completely covers the filter inductor and the inverter inductor.

2. The combined encapsulated inductor of claim 1 further comprising a third wire, wherein the second pin and the third pin are connected by the third wire.

3. The combined potting inductor of claim 2 further comprising a fourth wire; one end of the fourth wire extends out of the cavity, and the other end of the fourth wire is connected to the joint of the third wire and the second pin or the joint of the third wire and the third pin.

4. The combined encapsulated inductor of claim 1 wherein the first wires comprise two wires, one end of each of the two wires being connected to the first pin and the other end of each of the wires extending out of the cavity.

5. The combined encapsulated inductor of claim 1 or 4, wherein the second wires comprise two wires, one ends of the two second wires are connected with the fourth pin, and the other ends of the two second wires extend out of the cavity.

6. The combined potting inductor of claim 1 wherein the filter inductor comprises a first magnetic post and a first coil; the first coil is sleeved outside the first magnetic column and is formed by spirally winding a single-layer flat wire body; the first coil includes a first pin and a second pin.

7. The combined potting inductor of claim 1 wherein the inverter inductor comprises two second magnetic posts and two second coils; the two second coils are respectively sleeved outside the two second magnetic columns; the two second coils are formed by spirally winding a single-layer flat wire body, and are connected with each other, wherein one second coil comprises a third pin, and the other second coil comprises a fourth pin.

8. The combined encapsulated inductor of claim 1 wherein the case has mounting holes for securing the case.

9. The combined type encapsulating inductor as claimed in claim 1 or 8 wherein a sealing groove for attaching a sealing rubber strip is formed in the outer wall of the box body at the opening, and the sealing groove surrounds the opening.

10. The combined potting inductor of claim 1 further comprising a plurality of heat dissipating fins mounted to the peripheral wall of the case, respectively.