CN214505233U - Filter inductor of high-power starting power supply - Google Patents
Filter inductor of high-power starting power supply Download PDFInfo
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- CN214505233U CN214505233U CN202120473355.8U CN202120473355U CN214505233U CN 214505233 U CN214505233 U CN 214505233U CN 202120473355 U CN202120473355 U CN 202120473355U CN 214505233 U CN214505233 U CN 214505233U
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- filter inductor
- magnetic core
- power supply
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Abstract
The utility model discloses a filter inductor of a high-power starting power supply, which comprises a framework, steel belts, C-shaped magnetic cores and a fixing mechanism, wherein two C-shaped magnetic core mirror images are arranged to form a closed space, one C-shaped magnetic core is fixed in the framework, the two steel belts are respectively arranged at two sides of the same C-shaped magnetic core and are fixedly connected with the framework, and the outer surfaces of the other ends of the two steel belts, which are attached to the C-shaped magnetic cores, are arranged in a surrounding way and are mutually and fixedly connected through the fixing mechanism; the filtering inductor adopts upper and lower mirror image arrangement of the ultrathin silicon steel sheet with the thickness of 0.1mm, is small in eddy current loss and low in iron core temperature rise, and is stable and fixed through the framework and high in reliability.
Description
Technical Field
The utility model relates to an electrical control technical field especially relates to a high-power starting power supply's filter inductor.
Background
With the development of power electronic power semiconductor devices, the switching frequency of power supply products is gradually increased, and the requirements for miniaturization and high efficiency of inductive elements are inevitable. The inductor is an element capable of converting electric energy into magnetic energy to be stored; or smooth current exists in the current output process, and the high-frequency ripple waves are filtered out, namely the choke coil and the reactor.
For a high-frequency high-power-density switching power supply with the working frequency of 10-30kHz and high power, in order to output a smooth direct-current starting power supply with the large current of more than 1500 amperes (A), a topological circuit is used for phase-shifting control in a main circuit, and output inductance is indispensable. At present, a heavy-duty vehicle starting power supply inhibits high-frequency large-current ripples, a magnetic core of a multi-use inductor mostly adopts silicon steel sheets with the thickness of 0.35mm and amorphous materials, the silicon steel sheets with the thickness of 0.35mm are overlapped to form the magnetic core, the magnetic core is wear-resistant in a vehicle-mounted high-vibration environment, but when the heavy-duty vehicle starting power supply works at high frequency, the eddy current loss ratio is large, the temperature of the iron core is increased, and the heavy iron core is heavy; the magnetic core made of amorphous material has small eddy current loss and low iron core loss during high-frequency work, but is fragile and poor in reliability in a high-vibration environment of a traveling crane.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides a filter inductor of high-power starting power supply, eddy current loss is little, the iron core temperature rise is low, and the reliability is high.
The utility model provides a pair of high-power starting power supply's filter inductor, including skeleton, steel band, C type magnetic core and fixed establishment, two C type magnetic core mirror image settings form the enclosure space, and one of them C type magnetic core is fixed in the skeleton, and two steel bands set up respectively in the both sides of same C type magnetic core and with skeleton fixed connection, the surface of the attached C type magnetic core of the other end of two steel bands encircles the setting and through the mutual fixed connection of fixed establishment.
Further, filter inductor still includes copper line and crimping copper terminal, and two C type magnetic cores all twine at the periphery of junction and are provided with the copper line, and the copper line after the winding is drawn forth back and crimping copper terminal fixed connection.
Further, an insulating tape is arranged between adjacent wound copper wires, and the C-shaped magnetic core is provided with the insulating tape at the contact position of the C-shaped magnetic core and the copper wires.
Furthermore, the fixing mechanism comprises a screw and a mounting block provided with a threaded hole, the end parts of the two steel belts are respectively provided with a mounting hole, the mounting blocks are respectively nested in the mounting holes, and the two steel belts are fixed with the threaded hole of the mounting block through the screw in a threaded manner.
Furthermore, the framework is provided with a groove, and a C-shaped magnetic core is nested in the groove.
Furthermore, the ends of the two C-shaped magnetic cores are abutted, and the two C-shaped magnetic cores are arranged in a vertically mirror image mode.
Furthermore, the C-shaped magnetic core adopts an ultrathin silicon steel sheet with the thickness of 0.1 mm.
Further, the filter inductor further comprises a base, and the framework is fixedly arranged on the base.
The utility model provides a pair of high-power starting power supply's filter inductor's advantage lies in: the filtering inductor of the high-power starting power supply provided by the structure of the utility model adopts the upper and lower mirror image arrangement of the ultrathin silicon steel sheet with the thickness of 0.1mm, the eddy current loss is small, the temperature rise of the iron core is low, and meanwhile, the filtering inductor is stably fixed through the framework, and the reliability is high; the copper lead is conveniently connected to terminals of a power switch device IGBT and a high-frequency power device isolation capacitor of a large current through a crimping copper terminal, and the fact that the vehicle starting power supply output of the large current more than 1500A can be output for use in a short time under the condition that high-frequency output ripples are restrained is guaranteed.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of FIG. 2;
the device comprises a framework, a steel belt, a 3-C-shaped magnetic core, a 4-fixing mechanism, a 5-copper wire, a 6-compression joint copper terminal, a 7-base, a 41-mounting block and a 42-screw.
Detailed Description
The technical solutions of the present invention are explained in detail below with reference to specific embodiments, and many specific details are set forth in the following description to provide a thorough understanding of the present invention. The present invention can be embodied in many other forms than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention.
As shown in fig. 1 to 3, the utility model provides a high-power starting power supply's filter inductor, including skeleton 1, steel band 2, C type magnetic core 3 and fixed establishment 4, two C type magnetic core 3 mirror image settings form the enclosure space, and one of them C type magnetic core 3 is fixed in skeleton 1, and two steel bands 2 set up respectively in the both sides of same C type magnetic core 3, and with skeleton 1 fixed connection, the surface of the attached C type magnetic core 3 of the other end of two steel bands 2 encircles the setting, and through the mutual fixed connection of fixed establishment 4.
The C-shaped magnetic core is formed by matching an ultrathin silicon steel sheet 1 with the thickness of 0.1mm with an upper mirror image and a lower mirror image of the C-shaped magnetic core and is reliably fixed through a steel belt 2. Filter inductor still includes copper line 5 and crimping copper terminal 6, two C type magnetic cores 3 all twine in the periphery of junction and be provided with copper line 5, after 5 draw forth of copper line after the winding with crimping copper terminal 6 fixed connection, because two winding copper lines 5 of filter inductor need satisfy the high frequency and the requirement of heavy current, 5 surface areas of copper line are bigger, the copper lead wire that draws forth needs crimping copper terminal 6, conveniently connect on the terminal of the power switch tube spare IGBT of heavy current and high frequency power device isolation capacitance. The output of the vehicle starting power supply with large current of more than 1500A can be output for use in a short time under the condition of restraining high-frequency output ripples.
In this embodiment, the fixing mechanism 4 includes a screw 42 and a mounting block 41 with a threaded hole, the ends of the two steel strips 2 are respectively provided with a mounting hole, the mounting blocks 41 are respectively nested in the mounting holes, and the two steel strips 2 are screwed with the threaded hole of the mounting block 41 through the screw 42. Two steel bands 2 that set up relatively fix the both sides of C type magnetic core 3 respectively, then the tip of two steel bands 2 is close to each other, and at the in-process of fixing two steel bands 2, the screw of screw thread is all seted up for both ends to the screw of selected screw, in screwing the screw hole of installation piece 41 respectively with this screw, and then fixes two steel bands 2.
It should be noted that, for the mounting block 41 on each steel strip 2, at least 1 threaded hole is provided on the mounting block, and two threaded holes are provided in this embodiment, so as to stably fix the steel strip 2.
In this embodiment, filter inductor still includes base 7, and skeleton 1 is fixed to be set up on base 7, set up flutedly on skeleton 1, one of them C type magnetic core 3 nestedly sets up in the recess, and the terminal surface in close contact with of two C type magnetic cores 3 is not squinted, and the steel band 2 is fastened C type magnetic core 3 and base 7 symmetry, guarantees no noise, and the setting of recess can improve C type magnetic core 3's fixed stability on base 7 and the skeleton 1.
In this embodiment, the copper wire 5 is wound around the C-shaped magnetic core 3, specifically, two layers of flat copper wires are respectively wound around the two C-shaped magnetic cores 3 and led out to form a copper lead, the copper lead is fixedly connected with the crimping copper terminal 6, the crimping copper terminal 6 meets a rated current, and the duration of a large starting current is more than 10 s; wherein the flat copper wire is wound by 8 to 12 turns, but not limited to the enumerated turns, and the total area of the copper wire 5 is not less than the required high-frequency ripple current output;
the inductance of the filter inductor is adjusted by the magnetic core between the upper part and the lower part of the two C-shaped magnetic cores to meet the requirement.
Insulating treatment is carried out between the adjacent wound copper wires 5 and between the two independent wound copper wires 5 by using polyimide high-temperature adhesive tapes, for example, insulating adhesive tapes are arranged, and the insulating grade is H grade; the C-shaped magnetic core 3 needs to be additionally provided with a retaining wall or paper for strengthening insulation at the contact part with the copper wire 5, such as an insulating tape, and the insulation grade is H grade.
After the filter inductor is finished, a label or a mark with specific requirements is added right above the filter inductor for convenient use.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a filter inductor of high-power starting power supply, a serial communication port, including skeleton (1), steel band (2), C type magnetic core (3) and fixed establishment (4), two C type magnetic cores (3) mirror image setting form enclosure space, one of them C type magnetic core (3) are fixed in skeleton (1), two steel bands (2) set up respectively in the both sides of same C type magnetic core (3), and with skeleton (1) fixed connection, the surface of the attached C type magnetic core (3) of the other end of two steel bands (2) encircles the setting, and through fixed establishment (4) mutual fixed connection.
2. The filter inductor of the high-power starting power supply according to claim 1, wherein the filter inductor further comprises a copper wire (5) and a crimping copper terminal (6), the copper wire (5) is wound around the periphery of the joint of the two C-shaped magnetic cores (3), and the wound copper wire (5) is led out and then fixedly connected with the crimping copper terminal (6).
3. The filter inductor of high power starting power supply according to claim 2, wherein an insulating tape is disposed between adjacent wound copper wires (5), and the C-shaped magnetic core (3) is disposed with the insulating tape at a contact with the copper wires (5).
4. The filter inductor of the high-power starting power supply according to claim 1, wherein the fixing mechanism (4) comprises a screw (42) and a mounting block (41) with a threaded hole, the ends of the two steel strips (2) are respectively provided with a mounting hole, the mounting blocks (41) are respectively nested in the mounting holes, and the two steel strips (2) are fixed with the threaded hole of the mounting block (41) through the screw (42) in a threaded manner.
5. The filter inductor of the high-power starting power supply according to claim 1, wherein the framework (1) is provided with a groove, and a C-shaped magnetic core (3) is nested in the groove.
6. A filter inductor of a high power starting power supply according to any one of claims 1 to 5, characterized in that the ends of the two C-shaped magnetic cores (3) are abutted, and the two C-shaped magnetic cores (3) are arranged in a mirror image manner from top to bottom.
7. The filter inductor of high power starting power supply according to claim 6, wherein the C-shaped magnetic core is made of 0.1mm thick ultra-thin silicon steel sheet.
8. The filter inductor of high power starting power supply according to any one of claims 1 to 5, wherein the filter inductor further comprises a base (7), and the bobbin (1) is fixedly arranged on the base (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120473355.8U CN214505233U (en) | 2021-03-03 | 2021-03-03 | Filter inductor of high-power starting power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120473355.8U CN214505233U (en) | 2021-03-03 | 2021-03-03 | Filter inductor of high-power starting power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214505233U true CN214505233U (en) | 2021-10-26 |
Family
ID=78227945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120473355.8U Active CN214505233U (en) | 2021-03-03 | 2021-03-03 | Filter inductor of high-power starting power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214505233U (en) |
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2021
- 2021-03-03 CN CN202120473355.8U patent/CN214505233U/en active Active
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