WO2022141238A1

WO2022141238A1 - Inductor fixing device and power converter

Info

Publication number: WO2022141238A1
Application number: PCT/CN2020/141580
Authority: WO
Inventors: 王飞; 赵德琦; 吴壬华
Original assignee: 深圳欣锐科技股份有限公司
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-07-07
Also published as: CN113728404B; CN113728404A

Abstract

The present application provides an inductor fixing device, comprising a pair of frameworks, a magnetic core, an inductance coil, and a connecting terminal. The magnetic core is clamped between the pair of frameworks. The inductance coil is wound around the peripheral side of the magnetic core. A support frame is provided on either of the frameworks. One end of the connecting terminal is fixedly connected to the support frame, and the other end of the connecting terminal is fixedly connected to the portion of the inductance coil away from the support frame. The end of the connecting terminal connected to the support frame is provided with a conductive portion, and the conductive portion is used for being electrically connected to an external conductive element. According to the present application, the connecting terminal is connected to the inductance coil, the conductive portion is fixed on the support frame, and the connecting terminal is fixedly connected to the external conductive element by means of a second fastener, so as to achieve the positioning function of the inductance coil and improve the stability of the inductor fixing device.

Description

Inductive Fixtures and Power Converters

technical field

The present application relates to fixing structures, and in particular, to an inductive fixing device and a power converter.

Background technique

With the development of electronic devices in the direction of small size and space saving, the structure of the inductor in the prior art is relatively simple, the fixed installation method takes up space, and the input and output of the inductor are mostly connected by cables, and the reliability is relatively low. The fixing of the inductor is usually supported by the skeleton, and the positioning effect is low. Secondly, because the inductor is in a moving environment for a long time, its stability is not high.

SUMMARY OF THE INVENTION

The purpose of the present application is to provide an inductance fixing device and a power converter, so as to solve the technical problems such as positional displacement of the inductance coil during transportation and processing.

In one aspect, the present application provides an inductance fixing device, comprising a pair of bobbins, a magnetic core, an inductance coil and a connection terminal, the magnetic core is clamped between a pair of the bobbins, and the inductance coil is wound around the On the peripheral side of the magnetic core, any one of the skeletons is provided with a support frame, one end of the connection terminal is fixedly connected to the support frame, and the other end of the connection terminal is connected to the part of the inductance coil away from the support member For fixed connection, one end of the connection terminal connecting the support frame is provided with a conductive part, and the conductive part is used for electrical connection with the external conductive element.

Wherein, the skeleton includes a first skeleton and a second skeleton, the first skeleton and the second skeleton are relatively spaced apart, and a first positioning groove is provided on the side of the first skeleton facing the second skeleton, so The side of the second frame facing the first frame is provided with a second positioning groove, the magnetic core is provided with a magnetic core column, one end of the magnetic core column is clamped to the first positioning groove, and the magnetic core is The other end of the column is clamped in the second positioning groove.

The magnetic core further includes a first magnetic core block and a second magnetic core block, one end of the magnetic core column is fixedly connected with the first magnetic core block, and the other end of the magnetic core column is connected with the first magnetic core block. The two magnetic core blocks are fixedly connected, the side of the first frame facing away from the second frame is provided with a first accommodating groove, and the side of the second frame facing away from the first frame is provided with a second accommodating groove, so The first magnetic core block is accommodated in the first accommodating groove, and the second magnetic core block is accommodated in the second accommodating groove.

Wherein, the inductance fixing device further includes a first fastener, an engaging groove is formed on the support frame, a sinking groove is arranged at the bottom of the engaging groove, and one end of the connecting terminal is connected to the engaging groove. Positioning and matching, one end of the connecting terminal is provided with a first through hole, a fixing piece is accommodated in the sinking groove, and one end of the fixing piece facing the engaging groove is provided with a second through hole, and the first fastening piece is provided with a second through hole. One end of the connection terminal is fixed on the support frame by the fastener passing through the first through hole and the second through hole.

Wherein, the inductance fixing device includes a second fastener, the frame has a top surface that fits the support frame, a bottom surface opposite to the top surface, and a side surface connected between the top surface and the bottom surface , the side faces are parallel to the opposite directions of the two skeletons, the top surface of the skeleton is provided with a first via hole, the first via hole runs through the top surface to the bottom surface, and the second fastener passes through The frame is fixed through the first via hole.

Wherein, the first skeleton is provided with a first insulating gasket in the direction of the second skeleton, the second skeleton is provided with a second insulating gasket in the direction of the second skeleton, and the first insulating gasket The sheet and the second insulating spacer are used to isolate the second fastener from the inductor coil.

Wherein, the inductance coil has a head end and a tail end, the head end and the tail end are arranged at the end of the magnetic core column away from the support frame, the number of the connection terminals is two, and the two The connection terminals are arranged side by side at intervals, the head end is fixedly connected to one of the connection terminals, and the tail end is fixedly connected to the other connection terminal.

Wherein, the side where the connection terminal is connected with the inductance coil is greater than or equal to the side where the inductance coil is connected with the connection terminal.

Wherein, the inductance coil is wound around a plurality of the magnetic core columns in sequence.

On the other hand, the present application also provides a power converter, which includes the above-mentioned inductance fixing device and a casing, and the inductance fixing device is accommodated in the casing.

In the present application, the connection terminal is connected to the inductance coil, and the conductive portion is fixed on the support frame, and the connection terminal is fixedly connected to the external conductive element through the first fastener. , so as to realize the positioning function of the inductance coil, avoid the phenomenon of positional displacement of the inductance coil during use, processing, transportation, etc., and increase the stability of the inductance fixing device.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic diagram of an inductance fixing device provided by the present application.

FIG. 2 is a reference diagram of a use state of an inductance fixing device provided by the present application.

FIG. 3 is an exploded schematic diagram of an inductance fixing device provided by the present application.

FIG. 4 is a schematic structural diagram of a power converter provided by the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

Referring to FIGS. 1 and 2 , the present application provides an inductance fixing device 100 , which includes a pair of bobbins 10 , a magnetic core 20 , an inductance coil 30 and a connecting terminal 40 , and the magnetic core 20 is clamped to a pair of the bobbins. 10, the inductance coil 30 is wound around the peripheral side of the magnetic core 20, a support frame 50 is provided on any one of the skeletons 10, and one end of the connection terminal 40 is fixedly connected to the support frame 50, so The other end of the connection terminal 40 is fixedly connected to the part of the inductance coil 30 away from the support frame 50 , and the end of the connection terminal 40 connected to the support frame 50 is provided with a conductive part 41 , and the conductive part 41 is used for It is electrically connected to the external conductive element 70 .

Specifically, a pair of the skeletons 10 are respectively disposed at both ends of the magnetic core 20 , one end of the magnetic core 20 is clamped in one of the skeletons 10 , and the other end of the magnetic core 20 is clamped in the Inside the other bobbin 10 , so that the magnetic core 20 is stably fixed in a pair of the bobbins 10 , the inductor coil 30 starts from one end of the magnetic core 20 and is wound to the end of the magnetic core 20 in turn. On the other end, one of the skeletons 10 is provided with the support frame 50 , and the support frame 50 is used to install and position one end of the connection terminal 40 , and the other end of the connection terminal 40 is connected to the inductor coil 30 . The inductive coil 30 and the connection terminal 40 can be electrically connected, and the conductive part 41 is arranged on the end of the support frame 50 facing away from the frame 10 , that is, the connection terminal 40 and the connection terminal 40 are connected by electric welding. The connecting part of the support frame 50 , wherein the connection terminal 40 is also fastened to the support frame 50 with the external conductive element 70 , so as to realize the electrical connection between the inductance coil 30 and the external conductive element 70 . sexual transmission.

In the present application, by welding one end of the inductance coil 30 and the connection terminal 40, and then fixing the other end of the connection terminal 40 and the external conductive element 70 on the support frame 50, the inductance The coil 30 can be more stably attached to the bobbin 10, and at the same time, the phenomenon of positional deviation of the inductive coil 30 can be prevented, thereby solving the problem of inaccurate positioning caused by the inaccurate positioning during the installation of the inductive coil 30. .

Further, as shown in FIGS. 2 and 3 , the frame 10 includes a first frame 11 and a second frame 12 , the first frame 11 and the second frame 12 are relatively spaced apart, and the first frame 11 The side facing the second frame 12 is provided with a first positioning groove, the side facing the first frame 11 is provided with a second positioning groove, the magnetic core 20 is provided with a magnetic core column 23, One end of the magnetic core column 23 is clamped to the first positioning groove 11a, and the other end of the magnetic core column 23 is clamped to the second positioning groove 12a.

Specifically, the skeleton 10 is made of a low magnetic permeability material or an insulating material, the first skeleton 11 and the second skeleton 12 have the same dimensions, and the first skeleton 11 and the second skeleton have the same dimensions. 12 is in the shape of a "cross", the first frame 11 is provided with two first positioning grooves 11a, and the two first positioning grooves 11a are arranged side by side and spaced apart from On one side of the second frame 12 , the second frame 12 is provided with two second positioning grooves 12 a , and the two second positioning grooves 12 a are arranged side by side and spaced apart from the second frame 12 toward the first frame. On one side of the skeleton 11, the first positioning slot 11a and the second positioning slot 12a are arranged coaxially; the number of the magnetic core columns 23 is two, and the magnetic core columns 23 are cylindrical structures, so The magnetic core column 23 is made of magnetically conductive material, two of the magnetic core columns 23 are arranged side by side and spaced apart, and the first positioning slot 11a and the second positioning slot 12a are set to be compatible with the magnetic core column 23 The two magnetic core columns 23 are perpendicular to the first skeleton 11 and the second skeleton 12, and the length of the magnetic core columns 23 is longer than that of the first skeleton 11 toward the second skeleton. The distance from one side of the second frame 12 to the side of the second frame 12 facing the first frame 11, so that both ends of the magnetic core column 23 can be clamped on the first frame 11 and the second frame 11. Inside the two skeletons 12 .

In this embodiment, the first positioning groove 11a and the second positioning groove 12a are respectively opened on the first frame 11 and the second frame 12, so that the magnetic core column 23 can be clamped between the first frame 11 and the second frame 12 , thereby making the inductance fixing device 100 compact, simple and easy to install.

Further, the magnetic core further includes a first magnetic core block 21 and a second magnetic core block 22 , one end of the magnetic core column 23 is fixedly connected to the first magnetic core block 21 , and the The other end is fixedly connected to the second magnetic core block 22 , a first accommodating slot 11b is provided on the side of the first frame 11 facing away from the second frame 12 , and the second frame 12 faces away from the first frame 12 . One side of the skeleton 11 is provided with a second accommodating groove 12b, the first magnetic core block 21 is accommodated in the first accommodating groove 11b, and the second magnetic core block 22 is accommodated in the second accommodating groove 12b.

Specifically, the first magnetic core block 21 and the second magnetic core block 22 have a U-shaped structure, the magnetic core column 23 and the side facing the first skeleton 11 and the first magnetic core The side of the block 21 facing the second bobbin 12 is attached to each other, the side of the magnetic core column 23 facing the second bobbin 12 and the side of the first magnetic core block 21 facing the first bobbin 11 are attached to each other In this embodiment, the first magnetic core block 21 and the side of the magnetic core column 23 facing the first frame 11 are attached and connected by sticking, and the second magnetic core block 22 and the magnetic The side of the core column 23 facing the second frame 12 is attached and connected by means of pasting; the first accommodating groove 11b and the second accommodating groove 12b are both U-shaped grooves, and the first accommodating groove 11b is opened in the The side of the first frame 11 facing away from the first positioning slot 11a, the first accommodating slot 11b is used for accommodating the first magnetic core block 21, the first magnetic core block 21 and the first The accommodating groove 11b is a clearance fit, the second accommodating groove 12b is opened on the side of the second frame 12 facing away from the second positioning groove 12a, and the second accommodating groove 12b is used for accommodating the second magnetic core Block 22, the second magnetic core block 22 and the second accommodating groove 12b are clearance fit; the first accommodating groove 11b and the first positioning groove 11a pass through each other, and the second accommodating groove 12b and the The second positioning grooves 12a pass through each other.

In this embodiment, the first magnetic core block 21 and the second magnetic core block 22 are added at both ends of the magnetic core column 23 , so that the two magnetic core columns 23 are connected to the first magnetic core. The block 21 and the second magnetic core block 22 form a closed magnetic circuit, and the first accommodating groove 11b and the second accommodating groove 12b are respectively opened in the first skeleton 11 and the second skeleton 12 , the first magnetic core block 21 and the second magnetic core block 22 can be accommodated in the skeleton 10 respectively, so that the overall structure of the inductance fixing device 100 is simple and easy to assemble and disassemble. Of course, in other embodiments, the first magnetic core block 21 and the second magnetic core block 22 are also rectangular, polygonal or elliptical structures, the first magnetic core block 21 and the second magnetic core block The structure and size of 22 do not need to be the same. For example, the first magnetic core block 21 is rectangular, and the second magnetic core block 22 is elliptical, which can be set according to actual needs. This application does not make specific limitations, and the above all belong to this application for protection.

Further, the inductance fixing device 100 further includes a first fastener 60 , an engaging groove 50 a is formed on the supporting frame 50 , a sinking groove 50 b is formed at the bottom of the engaging groove 50 a , and the connecting terminal 40 One end of the connecting terminal 40 is positioned and matched with the engaging groove 50a, one end of the connecting terminal 40 is provided with a first through hole 41a, and a fixing member 51 is accommodated in the sinking groove 50b, and the fixing member 51 faces the engaging groove. One end of 50a is provided with a second through hole 51a, and the first fastener 60 passes through the first through hole 41a and the second through hole 51a to fix one end of the connection terminal 40 to the support frame 50 on.

Specifically, the support frame 50 is provided with two sinking grooves 50b, the sinking grooves 50b are hexagonal nut holes, the number of the fixing pieces 51 is two, and the fixing pieces 51 are hexagonal screws, so The fixing member 51 is fixed in the sinking groove 50b, the engaging groove 50a is rectangular, the connecting terminal 40 is a “convex” shape, and the connecting terminal 40 is made of a magnetically permeable material. One end of the connecting terminal 40 close to the support frame 50 is a conductive portion, and the conductive portion 41 is rectangular, so that the conductive portion 41 is matched with the engaging groove 50a. The opening depth is less than the thickness of the conductive portion 41. It can be understood that part of the conductive portion 41 is limited to the engaging groove 50a, and another portion of the conductive portion 41 protrudes from the first support frame and is connected to the first support frame. The external conductive element 70 is attached and connected, a first through hole 41 a is formed on the conductive portion 41 , a second through hole 51 a is formed on the side of the fixing member 51 facing the conductive portion 41 , and the conductive portion 41 The first through hole 41a and the second through hole 51a are arranged coaxially, the first fastener 60 is a screw, the first through hole 41a and the The second through holes 51a are provided with threaded holes adapted to the first fasteners 60, and the first fasteners 60 rotate into the first through holes 41a and the second through holes 51a to The conductive portion 41 is fixed in the engaging groove 50a.

In this embodiment, one end of the connecting terminal 40 can be attached to the supporting frame 50 by opening the engaging groove 50 a on the supporting frame 50 . In the event of displacement deviation, the sinking groove 50b is also opened below the engaging groove 50a, and a first through hole 41a and a second through hole 51a are respectively opened on the fixing member 51 and the conductive portion 41, In order to realize the positioning of the conductive portion 41 on the support frame 50 by the first fastener 60 . Of course, in other embodiments, the engaging groove 50a and the conductive portion 41 may also be circular, polygonal or other shapes, and the engaging groove 50a is made according to the actual situation with the change of the conductive portion 41 Corresponding changes are not specifically limited in this application, and the above all fall within the protection scope of this application.

Further, the inductance fixing device 100 includes a second fastener 80, the frame 10 has a top surface 10a that fits the support frame 50 and a bottom surface 10b opposite to the top surface 10a, and is connected to the The side surface 10c between the top surface 10a and the bottom surface 10b, the side surface 10c is parallel to the opposite directions of the two frames 10, the top surface 10a of the frame 10 is provided with a first via hole 15, and the first via hole 15 penetrates From the top surface 10 a to the bottom surface 10 b , the second fastener 80 passes through the first through hole 15 to fix the frame 10 .

Specifically, the first frame 11 has a first body portion 111 and a first protruding portion 112 , the second frame 12 has a second body portion 121 and a second protruding portion 122 , the first body portion 111 It is integrally formed with the first raised portion 112, and the second body portion 121 and the second raised portion 122 are integrally formed; the first positioning groove 11a and the first accommodating groove 11b are provided in the In the first body part 111 , the second positioning groove 12 a and the second accommodating groove 12 b are provided in the second body part 121 , and the first body part 111 and the second body part 121 have external shapes. The structure is the same as the rectangular body, the first protruding portion 112 is disposed on the two side surfaces 10c of the first main body portion 111 , and the second protruding portion 122 is disposed on the two sides of the second main body portion 121 . On each side surface 10c, the length of the first protruding portion 112 from the top surface 10a to the bottom surface 10b is smaller than the length of the first body portion 111, and the second protruding portion 122 is on the top surface The length from 10a to the bottom surface 10b is smaller than the length of the second body portion 121, and the first protruding portion 112 and the second protruding portion 122 are provided with first through holes 15, One end of the frame 11 and the second frame 12 close to the side surface 10c are provided with two first through holes 15 , the second fastener 80 is a screw, and the first through holes 15 Both are provided with threaded holes adapted to the second fasteners 80 , and the second fasteners 80 install and position the first frame 11 and the second frame 12 .

In this embodiment, the first through hole 15 is opened in the protruding portion, and the second fastener 80 is passed through the first through hole 15 to realize the fixed installation of the frame 10, so as to The phenomenon of positional displacement of the inductive fixing device 100 is prevented.

Further, the first frame 11 is provided with a first insulating gasket 113 in the direction facing the second frame 12 , and the second frame 12 is provided with a second insulating gasket 123 in the direction facing the first frame 11 . , the first insulating gasket 113 and the second insulating gasket 123 are used to isolate the second fastener 80 from the inductor coil 30 .

Specifically, the first insulating gasket 113 and the second insulating gasket 123 are made of insulating materials, the first insulating gasket 113 and the second insulating gasket 123 are rectangular, and the first insulating gasket 113 and the second insulating gasket 123 are rectangular. An insulating spacer 113 is integrally formed with the first frame 11 , the second insulating spacer 123 is integrally formed with the second frame 12 ; the first insulating spacer 113 and the second insulating spacer 123 Each has a second via hole 16 , the magnetic core column 23 is clamped in the skeleton 10 through the second via hole 16 , the first insulating gasket 113 and the second insulating gasket 123 The second fastener 80 is isolated from the inductor coil 30 .

In this embodiment, the first insulating gasket 113 and the second insulating gasket 123 are respectively disposed between the first frame 11 and the second frame 12 to reduce the second tightening In addition, the first insulating gasket 113 and the second insulating gasket 123 have simple structures, which are easy to install and reduce the processing cost.

Further, the inductance coil 30 has a head end 31 and a tail end 32 , the head end 31 and the tail end 32 are arranged at the end of the magnetic core column 23 away from the support frame 50 , and the connection terminal 40 The number is two, two of the connecting terminals 40 are arranged side by side and spaced apart, the head end 31 is fixedly connected to one of the connecting terminals 40 , and the tail end 32 is fixedly connected to the other connecting terminal 40 .

Specifically, in this embodiment, the head end 31 and the tail end 32 are both disposed on the side close to the second frame 12 , and the end of the connection terminal 40 away from the support frame 50 is the bent end 42 . The bent end 42 is in an "L" shape, wherein the bent end 42 of one of the connecting terminals 40 is connected to the head end 31 of the inductor coil 30 by electric welding, and the bent end 42 of the other connecting terminal 40 is connected to the head end 31 of the inductor coil 30 by electric welding. The tail end 32 of the inductance coil 30 is connected by electric welding. It can be understood that the bent end 42 of the connection terminal 40 is welded to the inductance coil 30 , and the conductive portion 41 of the connection terminal 40 is fixed by the first fastener 60 In the engaging groove of the support frame 50 , the cross sections of the head end 31 and the tail end 32 are rectangular surfaces of the same size, and the cross section of the bent end 42 is also rectangular. The area of the cross section 42 a of the folded end 42 is greater than or equal to the area of the cross section 41 a of the head end 31 and the tail end 32 , so that the inductor coil 30 and the connection terminal 40 have good electrical contact.

In this embodiment, the head end 31 and the tail end 32 of the inductance coil 30 are arranged on the same side to facilitate the connection between the inductance coil 30 and the connection terminal 40 , and at the same time, the bending portion of the connection terminal 40 is The cross-sectional area is set to be larger than the cross-sectional area of the head end 31 and the tail end 32 , so as to reduce the impedance generated by the inductance coil 30 .

Further, the inductance coil 30 is wound around a plurality of the magnetic core legs 23 in sequence.

Specifically, a part of the inductance coil 30 is located on one of the magnetic core legs 23, and another part of the inductive coil 30 is located on the other magnetic core leg 23, and the inductance coil 30 is located from one of the magnetic core legs 23. The head end 31 of the magnetic core column 23 starts to be wound and extends from the second bobbin 12 toward the first bobbin 11 . When the inductor coil 30 is wound from the second insulating spacer 123 to the first bobbin 12 After the insulating spacer 113 is installed, the inductance coil 30 extends to the other magnetic core column 23 , and is wound from the other magnetic core column 23 toward the first bobbin 11 and toward the second bobbin 12 . On the second insulating spacer 123 , it can be understood that both the head end 31 and the tail end 32 of the inductor coil 30 are attached to the second insulating spacer 123 .

In this embodiment, by integrally winding the inductance coil 30 on the two magnetic core columns 23, the opening of the head end 31 and the tail end 32 of the inductance coil 30 is reduced under the premise of ensuring the number of winding turns. Not only saves processing costs but also reduces power consumption. Of course, in other embodiments, the number of the magnetic core legs 23 can also be set to one, three, four, etc. according to actual requirements.

The embodiment of the present application further provides a power converter 500, the power converter 500 is provided with a housing 200, the power converter 500 includes the inductance fixing device 100, and the inductance fixing device 100 passes through the second The fastener 80 is fixed in the housing 200 , so that the inductance fixing device 100 can be installed in the power converter 500 more stably.

In the present application, firstly, the side of the first frame 11 close to the first positioning groove 11a is attached to the first insulating gasket 113, and then one end of the magnetic core column 23 is clamped to the first insulating spacer 113. In a positioning slot 11a, the inductance coil 30 is wound around two of the magnetic core posts 23 in turn, the head end 31 and the tail end 32 of the inductance coil 30 are respectively connected to the two connection terminals 40 by electric welding, and then the One side of the second frame 12 close to the second positioning groove 12a is attached to the second insulating spacer 123, and then the other end of the magnetic core column 23 is clamped in the second positioning groove 12a, Then, the first magnetic core block 21 is placed in the first accommodating groove 11b, the second magnetic core block 22 is placed in the second accommodating groove 12b, and the two ends of the magnetic core column 23 are respectively Abutting with the first magnetic core block 21 and the second magnetic core block 22 , so that the two magnetic core columns 23 and the first magnetic core block 21 and the second magnetic core block 22 form a closed magnetic circuit ; Then the fixing member 51 is installed in the sinking groove 50b, the conductive portion 41 is fixed in the engaging groove 50a, and the external conductive element 70 is attached to the conductive portion 41 facing away from the On one side of the support frame 50, the first fastener 60 fixes the conductive portion 41 and the external conductive element 70 in the engaging groove 50a, and finally the second fastener 80 fixes the The first frame 11 and the second frame 12 are fixed in the power converter 500 .

In the embodiment of the present application, the inductance coil 30 is set as an integral structure to reduce the opening of the head end 31 and the tail end 32 and reduce the power loss. The connection terminal 40 is added to connect the inductance coil 30 to the connection terminal 40 fixedly, and the support frame 50 is added on the first frame 11 to provide a positioning and installation area for the connection terminal 40 , and finally The connection terminal 40 is positioned and fixedly connected to the external conductive element 70 through the first fastener 60, that is, the positioning function of the inductance coil 30 is realized, and electrical transmission can be performed at the same time, which reduces the processing cost. .

To sum up, although the present application has disclosed the above-mentioned preferred embodiments, the preferred embodiments are not intended to limit the present application, and those of ordinary skill in the field, without departing from the spirit and scope of the present application, can Various changes and modifications are made, so the scope of protection of the present application is subject to the scope defined by the claims.

The above are the preferred embodiments of the present application. It should be pointed out that for those skilled in the art, without departing from the principles of the present application, several improvements and modifications can also be made, and these improvements and modifications may also be regarded as The protection scope of this application.

Claims

An inductance fixing device is characterized in that it includes a pair of bobbins, a magnetic core, an inductance coil and a connecting terminal, the magnetic core is clamped between a pair of the bobbins, and the inductance coil is wound around the magnetic core. On the peripheral side, any one of the skeletons is provided with a support frame, one end of the connection terminal is fixedly connected to the support frame, and the other end of the connection terminal is fixedly connected to the part of the inductance coil away from the support member, One end of the connection terminal connecting the support frame is provided with a conductive portion, and the conductive portion is used for electrical connection with an external conductive element.
The inductance fixing device according to claim 1, wherein the skeleton comprises a first skeleton and a second skeleton, the first skeleton and the second skeleton are arranged relatively spaced apart, and the first skeleton faces the first skeleton. One side of the two skeletons is provided with a first positioning groove, the side of the second skeleton facing the first skeleton is provided with a second positioning groove, the magnetic core is provided with a magnetic core column, and one end of the magnetic core column is clamped In the first positioning slot, the other end of the magnetic core column is clamped in the second positioning slot.
The inductor fixing device according to claim 2, wherein the magnetic core further comprises a first magnetic core block and a second magnetic core block, and one end of the magnetic core column is fixedly connected to the first magnetic core block, The other end of the magnetic core column is fixedly connected to the second magnetic core block, a first accommodating slot is provided on the side of the first frame facing away from the second frame, and the second frame faces away from the first frame. One side of a skeleton is provided with a second accommodating groove, the first magnetic core block is accommodated in the first accommodating groove, and the second magnetic core block is accommodated in the second accommodating groove.
The inductance fixing device according to claim 1, wherein the inductance fixing device further comprises a first fastener, an engaging groove is formed on the support frame, and a sink groove is formed at the bottom of the engaging groove, One end of the connecting terminal is positioned and matched with the engaging groove, one end of the connecting terminal is provided with a first through hole, a fixing member is accommodated in the sinking groove, and the fixing member faces one end of the engaging groove A second through hole is provided, and the first fastener passes through the first through hole and the second through hole to fix one end of the connection terminal on the support frame.
The inductance fixing device according to claim 2, wherein the inductance fixing device comprises a second fastener, the frame has a top surface abutting the support frame and a bottom surface opposite to the top surface, and Connected to the side surface between the top surface and the bottom surface, the side surface is parallel to the opposite direction of the two skeletons, the top surface of the skeleton is provided with a first via hole, and the first via hole penetrates the top surface to the On the bottom surface, the second fastener passes through the first through hole to fix the frame.
The inductance fixing device according to claim 5, wherein a first insulating gasket is provided in the direction of the first skeleton toward the second skeleton, and the second skeleton is provided with a direction toward the first skeleton. The second insulating spacer, the first insulating spacer and the second insulating spacer are used to isolate the second fastener from the inductor coil.
The inductance fixing device according to claim 2, wherein the inductance coil has a head end and a tail end, and the head end and the tail end are arranged at an end of the magnetic core column away from the support frame, so The number of the connecting terminals is two, the two connecting terminals are arranged side by side and spaced apart, the head end is fixedly connected to one of the connecting terminals, and the tail end is fixedly connected to the other connecting terminal.
The inductance fixing device according to claim 7, wherein a side of the connection terminal connected to the inductance coil is greater than or equal to a side of the inductance coil connected to the connection terminal.
The inductor fixing device according to any one of claims 1 to 8, wherein the inductor coil is wound around a plurality of the magnetic core legs in sequence.
A power converter, characterized in that the power converter includes the inductance fixing device according to any one of claims 1 to 9, the power converter is provided with a housing, and the inductance fixing device is accommodated in the inside the casing.