CN113628833A - Common mode inductance, single-phase robot filter - Google Patents
Common mode inductance, single-phase robot filter Download PDFInfo
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- CN113628833A CN113628833A CN202110854336.4A CN202110854336A CN113628833A CN 113628833 A CN113628833 A CN 113628833A CN 202110854336 A CN202110854336 A CN 202110854336A CN 113628833 A CN113628833 A CN 113628833A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F17/062—Toroidal core with turns of coil around it
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/005—Constructional details common to different types of electric apparatus arrangements of circuit components without supporting structure
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H2001/0021—Constructional details
- H03H2001/005—Wound, ring or feed-through type inductor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Filters And Equalizers (AREA)
Abstract
本发明公开了一种共模电感、单相机器人滤波器，共模电感包括：至少两个磁环，磁环外部分别设有骨架，多个磁环在轴向上重叠形成磁芯；磁芯的一侧缠绕有第一绕组，其另一侧缠绕有第二绕组；第一绕组与第二绕组之间设有绝缘片。共模电感采用多个相同的磁环分别套上骨架，扣合在一起缠绕两个绕组，组成一个全新的线圈，减小传统相同性能的线圈体积较大，漆包线较粗缠绕困难以及较粗漆包线缠绕不够紧密的。
The invention discloses a common mode inductor and a single-phase robot filter. The common mode inductor comprises: at least two magnetic rings, skeletons are respectively provided outside the magnetic rings, and the multiple magnetic rings are overlapped in the axial direction to form a magnetic core; One side is wound with a first winding, and the other side is wound with a second winding; an insulating sheet is arranged between the first winding and the second winding. The common mode inductor uses a plurality of identical magnetic rings to cover the skeleton respectively, buckle together and wind two windings to form a new coil, which reduces the volume of the traditional coil with the same performance, the difficulty of winding the enameled wire, and the thicker enameled wire. Not wrapped tightly enough.
Description
Technical Field
The invention relates to the field of filters, in particular to a common-mode inductor and single-phase robot filter.
Background
A control circuit portion of an industrial robot, particularly, a power supply of the control portion and a power supply of an actuator use components such as a filter. The filter is a common electrical element, and is used for effectively filtering a frequency point of a specific frequency in a power line or frequencies except the frequency point to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency. The special filter for the robot needs excellent anti-electromagnetic interference performance, and accurate control of the industrial robot is ensured.
In the prior art, the traditional robot filter has a complex general structure due to the particularity of a filtering frequency band, so that the whole size of the filter is large, the filter is difficult to install, the filter is influenced by vibration during working, and components and parts in the filter with the large size are easily damaged.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a common-mode inductor which is small in structure and convenient to install, and further provides a single-phase robot filter which is small in size and excellent in filtering performance.
The invention provides a common mode inductor, comprising: the magnetic rings are respectively provided with a framework outside, and the magnetic rings are overlapped in the axial direction to form a magnetic core; a first winding is wound on one side of the magnetic core, and a second winding is wound on the other side of the magnetic core; an insulating sheet is arranged between the first winding and the second winding.
Preferably, the skeleton consists of two annular housings, the magnetic ring being accommodated between the two annular housings.
The invention also provides a single-phase robot filter, comprising: the first common-mode inductor and the second common-mode inductor; a discharge resistor is connected between two input ends of the first common mode inductor, and two ends of the discharge resistor are also connected with a first capacitor; a second capacitor is connected between the two output ends of the first common mode inductor; the two output ends of the first common-mode inductor are also connected with the two input ends of the second common-mode inductor respectively; a third capacitor is connected between the two output ends of the second common-mode inductor; and a Y capacitor is also connected between the two output ends of the second common mode inductor.
Preferably, the first common-mode inductor or the second common-mode inductor is the common-mode inductor; one end of the first winding is an input end, and the other end of the first winding is an output end; one end of the second winding is an input end, and the other end of the second winding is an output end.
Preferably, the Y capacitor comprises a first Y capacitor and a second Y capacitor; one end of the first Y capacitor is connected with one output end of the second common-mode inductor, the other end of the first Y capacitor is grounded, one end of the second Y capacitor is connected with the other output end of the second common-mode inductor, and the other end of the second Y capacitor is grounded.
Preferably, the power supply further comprises a housing, and the side wall of the housing is provided with four wall-through terminals, and the four wall-through terminals are respectively connected with the two input ends of the first common-mode inductor and the two output ends of the second common-mode inductor.
Preferably, the wall-through terminal is provided with a first connecting end and a second connecting end; the second connecting end passes through the side wall of the shell and is arranged in the inner cavity of the shell.
Preferably, the end face of the second connecting end is provided with a metal buckle; the metal buckle can be bent and folded in the axial direction.
Preferably, two sides of the shell are provided with mounting lugs; and the mounting hanging lug is provided with a mounting hole.
Preferably, the inner side wall of the shell is provided with a polyester film.
According to the invention, the common mode inductor adopts a plurality of same magnetic rings to respectively sleeve the frameworks, and then the frameworks are buckled together to wind the two windings to form a brand new coil, so that the problems of large volume of the traditional coil with the same performance, difficulty in thick winding of an enameled wire and insufficient tightness in winding of a thick enameled wire are solved; and the magnetic ring is sleeved with the coil after the framework is added, so that the problem that the single magnetic ring is fragile and damaged is solved.
In the invention, the filter uses the common mode inductor composed of a plurality of magnetic rings under the condition of not influencing the filtering performance of the product, so that the size of the filter is effectively reduced under the condition of ensuring the filtering performance, and in addition, only two capacitors are used for forming Y capacitor ground connection, thereby further reducing the whole size of the filter.
In the invention, the polyester film is inserted into the inner cavity of the shell of the filter, so that the problems of too tight connection and easy high-voltage breakdown of each component can be avoided, and meanwhile, the epoxy filter is filled in the inner cavity of the semi-finished product to cause damage to the components due to vibration in the working process, and simultaneously, the noise caused by the vibration of the product can be reduced.
In the invention, the metal buckle inserted in the inner cavity of the shell of the filter wall-through terminal is bent upwards, so that the metal buckle can be cut off in the installation process, pins of various components can be connected with the wall-through terminal more conveniently, and the production efficiency of the filter is improved.
In conclusion, the invention makes full use of the effective space of the inner cavity of the filter shell, thereby reducing the whole volume of the filter, enabling the filter to be more convenient and faster when the client equipment is connected, and simultaneously reducing the space occupied by the filter in the whole equipment.
Drawings
Fig. 1 is a schematic view of a magnetic ring structure of a common inductance module according to the present invention;
FIG. 2 is a schematic structural diagram of a common inductor according to the present invention;
fig. 3 is a schematic circuit diagram of a single-phase robot filter according to the present invention;
fig. 4 is a schematic structural diagram of a housing of a single-phase robot filter according to the present invention;
fig. 5 is a schematic structural diagram of a wall-through terminal of a single-phase robot filter according to the present invention.
Detailed Description
Referring to fig. 1 and 2, a common mode inductor according to a first embodiment of the present invention includes: the magnetic ring comprises two magnetic rings 101, wherein the outsides of the magnetic rings are respectively provided with a framework 102, and a plurality of magnetic rings are overlapped in the axial direction to form a magnetic core 103; a first winding 104 is wound on one side of the magnetic core, and a second winding 105 is wound on the other side of the magnetic core; an insulating sheet 106 is arranged between the first winding and the second winding.
In this embodiment, the framework 102 is composed of two annular housings, and the magnetic ring 102 is accommodated between the two annular housings.
It should be noted that, in other embodiments of the present invention, the number of the magnetic rings is not limited to two, and the number of the magnetic rings can be adjusted according to actual requirements to achieve the required inductive reactance.
According to the invention, the common mode inductor adopts a plurality of same magnetic rings to respectively sleeve the frameworks, and then the frameworks are buckled together to wind the two windings to form a brand new coil, so that the problems of large volume of the traditional coil with the same performance, difficulty in thick winding of an enameled wire and insufficient tightness in winding of a thick enameled wire are solved; and the magnetic ring is sleeved with the coil after the framework is added, so that the problem that the single magnetic ring is fragile and damaged is solved.
As shown in fig. 3, a second embodiment of the present invention provides a single-phase robot filter, including: a first common mode inductor L1, a second common mode inductor L2; a discharge resistor R is connected between two input ends of the first common mode inductor L1, and two ends of the discharge resistor R are also connected with a first capacitor CX 1; a second capacitor CX2 is connected between the two output ends of the first common-mode inductor L1, and the two output ends of the first common-mode inductor L1 are also connected with the two input ends of the second common-mode inductor L2 respectively; a third capacitor CX3 is connected between the two output ends of the second common mode inductor L2; a Y capacitor CY1 is also connected between the two output ends of the second common mode inductor L2.
As shown in fig. 3, the input terminal L, N is an input terminal of the filter, i.e., an input terminal of the first common mode inductor, and the output terminals L ", N" are two output terminals of the filter, i.e., two output terminals of the second common mode inductor.
It should be noted that, in the present invention, for two elements with far connecting ends, the effective space of the inner cavity of the iron shell can be reasonably and effectively utilized by using the wire connection mode, so that the overall size of the filter is reduced, the filter is more convenient and faster when being connected with the client device, and the space occupied by the filter in the whole device is reduced.
In this embodiment, the first common-mode inductor or the second common-mode inductor is the common-mode inductor described in the first embodiment; one end of the first winding 104 is an input end, and the other end thereof is an output end; one end of the second winding 105 is an input end, and the other end thereof is an output end. It should be noted that, according to actual requirements, one of the first common-mode inductor and the second common-mode inductor may be the common-mode inductor described in the first embodiment, or both of them may be the common-mode inductors described in the first embodiment.
In this embodiment, the Y capacitor CY1 includes a first Y capacitor and a second Y capacitor; one end of the first Y capacitor is connected to one output end of the second common-mode inductor L2, the other end of the first Y capacitor is grounded, one end of the second Y capacitor is connected to the other output end of the second common-mode inductor L2, and the other end of the second Y capacitor is grounded. Note that, in the present embodiment, the first Y capacitance and the second Y capacitance are capacitances of 47 nF.
As shown in fig. 4, in this embodiment, the filter further includes a housing 2, and four wall terminals 3 are disposed on a side wall of the housing, and the four wall terminals 3 are respectively connected to two input ends of the first common mode inductor and two output ends of the second common mode inductor.
As shown in fig. 5, in the present embodiment, the wall-through terminal 3 is provided with a first connection end 301 and a second connection end 302; the second connecting end 302 is arranged in the inner cavity of the shell through the side wall of the shell.
In this embodiment, a metal buckle 303 is disposed on an end surface of the second connecting end 302; the metal button 303 can be bent and folded in the axial direction. It should be noted that, in the installation process, the metal buckle is folded upwards, then the metal buckle is cut short, and then the metal buckle is connected with the equipment, so that pins of each component can be more conveniently connected with the through-wall terminal, and the production efficiency of the filter is improved.
In this embodiment, two sides of the housing 2 are provided with mounting lugs 201; the mounting hanging lug is provided with a mounting hole 202.
In this embodiment, a polyester film is disposed on an inner side wall of the housing 2. It should be noted that, polyester films can be filled between the components in the housing, so as to avoid the problems of too tight connection and easy high-voltage breakdown of the components, and meanwhile, the epoxy filter is filled in the inner cavity of the semi-finished product to cause damage of the components due to vibration in the working process, and simultaneously, the noise caused by the vibration of the product can be reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A common mode inductor, comprising: the magnetic ring structure comprises at least two magnetic rings (101), wherein the outsides of the magnetic rings are respectively provided with a framework (102), and a plurality of magnetic rings are overlapped in the axial direction to form a magnetic core (103); one side of the magnetic core is wound with a first winding (104), and the other side of the magnetic core is wound with a second winding (105); an insulation sheet (106) is arranged between the first winding and the second winding.
2. A common-mode inductor according to claim 1, characterized in that the bobbin (102) consists of two annular shells, between which the magnetic ring (102) is accommodated.
3. A single-phase robotic filter, comprising: a first common mode inductance (L1), a second common mode inductance (L2); a discharge resistor (R) is connected between two input ends of the first common mode inductor (L1), and two ends of the discharge resistor (R) are also connected with a first capacitor (CX 1); a second capacitor (CX2) is connected between the two output ends of the first common-mode inductor (L1), and the two output ends of the first common-mode inductor (L1) are also respectively connected with the two input ends of the second common-mode inductor (L2); a third capacitor (CX3) is connected between the two output ends of the second common mode inductor (L2); and a Y capacitor (CY1) is also connected between the two output ends of the second common mode inductor (L2).
4. The single-phase robot filter of claim 3, wherein the first common-mode inductor or the second common-mode inductor is the common-mode inductor of any one of claims 1-2; one end of the first winding (104) is an input end, and the other end of the first winding is an output end; one end of the second winding (105) is an input end, and the other end thereof is an output end.
5. The single-phase robot filter according to claim 3, characterized in that the Y-capacitance (CY1) comprises a first Y-capacitance and a second Y-capacitance; one end of the first Y capacitor is connected with one output end of the second common-mode inductor (L2), the other end of the first Y capacitor is grounded, one end of the second Y capacitor is connected with the other output end of the second common-mode inductor (L2), and the other end of the second Y capacitor is grounded.
6. The single-phase robot filter according to claim 3, further comprising a housing (2), wherein four wall-through terminals (3) are disposed on a side wall of the housing (2), and the four wall-through terminals (3) are respectively connected to two input terminals of the first common-mode inductor and two output terminals of the second common-mode inductor disposed in the housing.
7. The single-phase robot filter according to claim 6, characterized in that the through-wall terminal (3) is provided with a first connection end (301) and a second connection end (302); the second connecting end (302) is arranged in the inner cavity of the shell by penetrating through the side wall of the shell.
8. The single-phase robot filter of claim 7, wherein the second connecting end (302) is provided with a metal button (303) at the end surface; the metal buckle (303) can be bent and folded in the axial direction.
9. The single-phase robot filter according to claim 6, characterized in that the housing (2) is provided with mounting lugs (201) on both sides; the mounting hanging lug is provided with a mounting hole (202).
10. Single-phase robot filter according to claim 6, characterised in that the inner side walls of the housing (2) are provided with polyester film.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110854336.4A CN113628833A (en) | 2021-07-28 | 2021-07-28 | Common mode inductance, single-phase robot filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110854336.4A CN113628833A (en) | 2021-07-28 | 2021-07-28 | Common mode inductance, single-phase robot filter |
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| CN211578497U (en) * | 2020-03-31 | 2020-09-25 | 常州市南方电器元件厂有限公司 | High voltage-resistant common-mode inductor and common-mode filter |
| US20200350105A1 (en) * | 2019-04-30 | 2020-11-05 | Pds Electronics, Inc. | Common-Mode Current Suppression Device Utilizing A Nanocrystalline Core(s) |
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2021
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| JP2005294368A (en) * | 2004-03-31 | 2005-10-20 | Tdk Corp | Inductor and filter element |
| US20080037298A1 (en) * | 2006-06-10 | 2008-02-14 | Schneider Toshiba Inverter Europe Sas | Common-mode filtering device and speed variator comprising such a device |
| CN204597906U (en) * | 2015-05-12 | 2015-08-26 | 力博特公司 | Electromagnetic interference electromagnetic interface filter in a kind of high power system |
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Application publication date: 20211109 |