CN217239216U

CN217239216U - Inductor fixing device

Info

Publication number: CN217239216U
Application number: CN202220538186.6U
Authority: CN
Inventors: 杨平; 张沁阳; 罗杰; 王宏; 马明刚; 李鹏飞
Original assignee: TBEA Xinjiang Sunoasis Co Ltd; TBEA Xian Electric Technology Co Ltd
Current assignee: TBEA Xinjiang Sunoasis Co Ltd; TBEA Xian Electric Technology Co Ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-08-19
Anticipated expiration: 2032-03-11

Abstract

The utility model discloses an inductance fixing device, include: an upper support and a lower support; inductance placing grooves are respectively formed in the bottom surface of the upper supporting piece and the top surface of the lower supporting piece; the inductor is arranged on the iron core, and the upper end and the lower end of the iron core are respectively arranged in the inductor placing grooves of the upper supporting piece and the lower supporting piece; and a channel for the inductor to pass through is arranged on the lower supporting piece. The utility model provides an inductance fixing device, through installing the inductance between last support piece and under bracing piece, the inductance exposes the installation back, than original die-casting light in weight, and saves original casting glue, and weight reduction is obvious.

Description

Inductor fixing device

Technical Field

The utility model belongs to the technical field of high protection level dc-to-ac converter, concretely relates to inductance fixing device.

Background

With the development of power electronic technology, the power density of power electronic equipment is increasing continuously, and the topological structure of the power electronic equipment is abundant continuously. The requirements for weight, reliability and service life of power electronic equipment are continuously enhanced, and more convenient installation and reliable heat dissipation design have very important influence on products, so that a new installation mode needs to be designed as far as possible.

The installation design of the existing inductor is that the inductor is placed in a shell, pouring sealant is carried out, the inductor is integrally fixed on a machine shell, inductor heat is transferred to the inductor shell through the pouring sealant, and the inductor heat is taken away through heat dissipation of a fan on the inductor shell;

for the installation device with high protection external inductance, the product overheating derating is the bottleneck of the whole equipment, and the device has great significance for improving the service life and the cost of the whole equipment in order to improve the product efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inductance fixing device to solve the inductance that exists among the prior art and install in the inductance shell, overweight problem behind the embedment.

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

an inductance fixture device, comprising: an upper support and a lower support; inductance placing grooves are respectively formed in the bottom surface of the upper supporting piece and the top surface of the lower supporting piece;

the inductor is arranged on the iron core, and the upper end and the lower end of the iron core are respectively arranged in the inductor placing grooves of the upper supporting piece and the lower supporting piece;

and a channel for the inductor to pass through is arranged on the lower supporting piece.

Optionally, the upper support member and the lower support member are provided with inductor placing grooves with the same number, the iron cores corresponding to the inductors are respectively installed in the two opposite inductor placing grooves, and an amorphous layer is arranged between the adjacent inductors.

Optionally, the upper support and the lower support are fixedly connected by a long bolt.

Optionally, the two surfaces of the upper supporting piece and the bottom surface of the lower supporting piece are respectively provided with a reinforcing rib.

Optionally, the reinforcing ribs on the top surface of the upper supporting member and the bottom surface of the lower supporting member are in a grid shape.

Optionally, the reinforcing rib on the bottom surface of the upper support is a reinforcing rib plate vertically fixed on the bottom surface of the upper support.

Optionally, the reinforcing rib plates are arranged in a square shape, and auxiliary rib plates (21) are further arranged on the outer sides of two opposite sides of the reinforcing rib plates.

Optionally, the channel on the lower support for the inductor outgoing line to pass through includes a through hole on the lower support, and an inductor outgoing line outlet and a line passing hole communicated with the through hole.

Optionally, after the inductor outgoing line penetrates through the channel, a flexible wire for external connection is welded, and glue is poured into the channel.

Optionally, the top surface of the lower support is used for being mounted at the bottom of the chassis, and a sealing rubber strip is arranged at the joint.

Compared with the prior art, the utility model discloses following profitable technological effect has at least:

1) the utility model provides an inductance fixing device, through installing the inductance between last support piece and under bracing piece, the exposed installation back of inductance, lighter than original die-casting weight, and save original casting glue, weight reduction is obvious.

2) The utility model provides an inductance fixing device, the inductance exposes back radiating efficiency and promotes, increase heat radiating area, and wind can be followed and swept between every layer of wire winding, and the effectual heat dissipation purpose that reaches makes the inductance temperature reduce.

3) The utility model provides an inductance fixing device compares with the die-casting casing, saves the heat dissipation tooth, the casting glue, and technology is simpler, and the income is obvious, cost reduction.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of an overall structure of an inductor fixing device according to the present invention;

FIG. 2 is a schematic view of the top surface of the upper support member according to the embodiment of the present invention;

FIG. 3 is a schematic view of the bottom structure of the upper support member according to the embodiment of the present invention;

fig. 4 is a schematic structural view of the top surface of the lower supporting member in the embodiment of the present invention;

fig. 5 is a schematic view of the bottom surface structure of the lower supporting member in the embodiment of the present invention;

fig. 6 is a schematic diagram of the threading of the inductor according to the embodiment of the present invention;

fig. 7 is a schematic diagram of an embodiment of the present invention when an inductor is installed;

fig. 8 is a schematic diagram of the inductor glue applying process according to the embodiment of the present invention.

In the figure: 1 a first inductance; 2 a second inductor; 3 a third inductance; 4, iron cores; 5, amorphous; 6 an upper support member; 7 a lower support member; 8, an inductance outlet; 9 long bolts; 10 insulating sheath; 11 a first mounting hole; 12 a first outer bead; 13 a reinforcing rib plate; 14 a first inductor placement slot; 15 a second inductor placement slot; 16 a third inductor placement slot; 17 a wire passing hole; 18 a fourth inductor placement slot; 19 a fifth inductor placement groove; 20 a sixth inductor placement slot; 21 auxiliary ribs; 22 glue; 24 second mounting holes; 25 second external bead.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The following detailed description is exemplary in nature and is intended to provide further explanation of the invention as claimed. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.

As shown in fig. 1-3, an embodiment of the utility model provides an inductance fixing device, include: an upper support 6 and a lower support 7; inductance placing grooves are respectively arranged on the bottom surface of the upper support 6 and the top surface of the lower support 7, and the left and right offset positions of the inductance are determined by the sizes of the inductance placing grooves on which the upper support 6 and the lower support 7 are arranged. The inductance setting is on iron core 4, and iron core 4 upper and lower both ends are installed respectively in the inductance standing groove of upper support piece 6 and bottom suspension piece 7. The lower supporting piece 7 is provided with a channel for an inductor outgoing line to pass through, a flexible wire for external connection is welded after the inductor outgoing line passes through the channel, glue 22 is filled in the channel in a pouring mode, and the glue 22 is AB glue. The top surface of the lower support 7 is used for being installed at the bottom of the case, a circle of sealing rubber strips is arranged at the joint, and the high protection level inside the case is ensured through the screw fastening of 16 PCS-M6. The utility model provides an inductance fixing device, through installing the inductance between last support piece and under bracing piece, the exposed installation back of inductance, lighter than original die-casting weight, and save original casting glue, weight reduction is obvious.

In other embodiments, after the inductor is exposed and installed, the fan is used for radiating heat, so that the temperature can be obviously reduced, the efficiency of the inductor is improved, and the loss is reduced. In other embodiments, in order to prevent the inductor from failing, a layer of protective outer cover is additionally arranged outside the exposed inductor, and an adhesive sealing strip is additionally arranged on the protective outer cover, so that dust and sand or rainwater in the operation process of the inductor can be effectively prevented from directly contacting the exposed inductor.

Be applied to the utility model discloses a specific embodiment is provided with the same inductance standing groove of quantity on upper support piece 6 and the bottom suspension member 7, and the iron core 4 that a plurality of inductances correspond is installed respectively in two relative inductance standing grooves, is provided with amorphous 5 between the adjacent inductance. In a specific embodiment of the present invention, including three inductors, which are the first inductor 1, the second inductor 2 and the third inductor 3, respectively, the upper support 6 is provided with a first inductor placing groove 14, a second inductor placing groove 15 and a third inductor placing groove 16, and the lower support 7 is provided with a fourth inductor placing groove 18, a first inductor placing groove 19 and a sixth inductor placing groove 20; the iron core corresponding to the first inductor 1 is connected to the first inductor placing groove 14 and the fourth inductor placing groove 18, the iron core corresponding to the second inductor 2 is connected to the second inductor placing groove 15 and the fifth inductor placing groove 19, and the iron core corresponding to the third inductor 3 is connected to the third inductor placing groove 16 and the sixth inductor placing groove 20.

In an embodiment of the present invention, the upper support member 6 and the lower support member 7 are both plastic members, and are formed by injection molding, so that the weight is light. Specifically, the upper support 6 and the lower support 7 both use PV66+ 25% GF material. Compared with the traditional pouring sealant, the plastic part is 0.45 times of the density of the metal part, and the installation mode is lighter than that of the traditional installation by about 60 percent by adding the omitted pouring sealant.

In an embodiment of the present invention, the upper support member 6 and the lower support member 7 are fixedly connected by the long bolt 9, the long bolt 9 passes through the first mounting hole 11 of the upper support member 6, and is screwed into the second mounting hole 24 of the lower support member 7, and the second mounting hole 24 is a threaded through hole.

The upper and lower positions of the inductor can be fastened by setting the height of the long bolt 9. As an example of the present invention, the long bolt 9 is a stainless steel bolt. In other embodiments, in order to avoid safety problems caused by deformation, an insulating sheath 10 is added on the outer surface of the long bolt 9, so that the reliability design of the external inductor is effectively ensured. In other embodiments, the fixing position of the long bolt 9 is sunk, so that the safety regulation risk after the long bolt is raised is avoided.

In a preferred embodiment of the present invention, both surfaces of the upper support member 6 and the bottom surface of the lower support member 7 are provided with reinforcing ribs, respectively. Specifically, the reinforcing rib on the top surface of the upper support member 6 is a first external reinforcing rib 12, the reinforcing rib on the bottom surface of the lower support member 7 is a second external reinforcing rib 25, and the first external reinforcing rib 12 and the second external reinforcing rib 25 are both in a grid shape. The reinforcing rib on the bottom surface of the upper support part 6 is a reinforcing rib plate 13 vertically fixed on the bottom surface of the upper support part 6. The reinforcing rib 13 is arranged in a square shape, and auxiliary ribs 21 are further arranged on the outer sides of two opposite sides of the reinforcing rib 13.

The channel for the inductor outgoing line to pass through on the lower support member 7 comprises a through hole on the lower support member 7, an inductor outgoing line outlet 8 and a line passing hole 17 which are communicated with the through hole, and the position of the through hole for setting the lower support member 7 determines the outgoing line position of the inductor. The size of the channel is 1.5mm more than that of the single side of the inductance wire, the depth is 40mm, the size is large, and the AB glue is convenient to encapsulate. 2/3 is firstly poured during encapsulation, and secondary gluing is carried out by using glass cement after production and installation, so that the sealing of the induction wire inlet part can be effectively ensured.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims

1. An inductor fixation device, comprising: an upper support (6) and a lower support (7); inductance placing grooves are respectively formed in the bottom surface of the upper supporting piece (6) and the top surface of the lower supporting piece (7);

the inductor is arranged on the iron core (4), and the upper end and the lower end of the iron core (4) are respectively arranged in the inductor placing grooves of the upper supporting piece (6) and the lower supporting piece (7);

and a channel for an inductor outgoing line to pass through is arranged on the lower supporting piece (7).

2. The inductance fixing device according to claim 1, wherein the upper support member (6) and the lower support member (7) are provided with the same number of inductance placement grooves, a plurality of iron cores (4) corresponding to the inductances are respectively installed in the two opposite inductance placement grooves, and an amorphous metal (5) is arranged between the adjacent inductances.

3. The inductance fixture device according to claim 1, wherein said upper support member (6) and said lower support member (7) are fixedly connected by means of a long bolt (9).

4. The inductance fixing device according to claim 1, wherein both surfaces of the upper support member (6) and the bottom surface of the lower support member (7) are respectively provided with a reinforcing rib.

5. The inductance fixture device according to claim 4, wherein the top surface of said upper support member (6) and the bottom surface of said lower support member (7) have reinforcement ribs in the shape of a grid.

6. The inductance fixing device according to claim 4, wherein the reinforcing ribs on the bottom surface of the upper support member (6) are reinforcing ribs vertically fixed on the bottom surface of the upper support member (6).

7. The inductance fixing device according to claim 6, wherein the reinforcing ribs are arranged in a square shape, and auxiliary ribs (21) are further arranged on the outer sides of two opposite sides of the reinforcing ribs.

8. The inductance fixing device according to claim 1, wherein the passage for the inductor outlet to pass through on the lower support member (7) comprises a through hole on the lower support member (7), and the inductor outlet (8) and the wire through hole (17) which are communicated with the through hole.

9. The inductor fixing device according to claim 1, wherein a flexible wire for external connection is welded after the inductor outgoing line passes through the channel, and a sealant is poured in the channel.

10. The inductance fixing device according to claim 1, wherein the top surface of the lower support member (7) is adapted to be mounted on the bottom of the cabinet, and a sealing rubber strip is provided at the joint.