CN206962648U - DC motor commutator electromagnetic interference suppresses structure - Google Patents
DC motor commutator electromagnetic interference suppresses structure Download PDFInfo
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- CN206962648U CN206962648U CN201621219315.6U CN201621219315U CN206962648U CN 206962648 U CN206962648 U CN 206962648U CN 201621219315 U CN201621219315 U CN 201621219315U CN 206962648 U CN206962648 U CN 206962648U
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- commutator segment
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Abstract
The utility model DC motor commutator electromagnetic interference suppresses structure, engine commutator when problem is operating be present and often commutate the moment that an inductance disconnects in current existing direct current generator, caused spark externally produces substantial amounts of electromagnetic interference between brush and commutator segment, directly affect the normal work of neighbouring electronic equipment, utility model method is to be to install electromagnetic interference caused by capacitor absorption commutator additional between two commutator segments, circuit structure is that rotor coil is made up of 3 or n winding, the commutator segment of commutator is made up of 3 or n pieces, the capacitor installed additional on commutator is also formed by 3 or n, it is rational in infrastructure, it is easy to use.
Description
Technical field
It the utility model is related to DC motor commutator system, particularly DC motor commutator electromagnetic interference and suppress knot
Structure.
Background technology
The group such as the main commutator segment of existing DC motor commutator, plastic casing, metal substrate, mica sheet, brush at present
Into problem be present is that engine commutator often commutates the moment that an inductance disconnects when operating, caused by between brush and commutator segment
Spark externally produces substantial amounts of electromagnetic interference, directly affects the normal work of neighbouring electronic equipment, straight such as automobile using wiper
Stream engine commutator can influence the cisco unity malfunctions such as computer board and frequency modulation broadcasting, commutator product is not reached national standard
The index of EMI electromagnetism Interferences and radiation interference.
The content of the invention
The purpose of this utility model is to be directed to drawbacks described above, there is provided a kind of DC motor commutator electromagnetic interference suppresses knot
Structure, utility model method are the electromagnetic interferences caused by installation capacitor absorption commutator between two commutator segments, reach state
Mark Conducted Electromagnetic Interference and Radiative EMI index as defined in EMl.
The technical solution of the utility model is that DC motor commutator electromagnetic interference suppresses structure, it is characterised in that direct current
It is that electromagnetism caused by installation capacitor absorption commutator is done between two commutator segments that machine commutator electromagnetic interference, which suppresses structure,
Disturb, circuit structure is that rotor coil is made up of 3 or n winding, and the commutator segment of commutator is made up of 3 or n pieces, two commutations
The capacitors count installed additional between piece is identical with the quantity of commutator segment, and the capacitor installed additional on commutator is also by 3 or n group
Into.
The DC motor commutator electromagnetic interference suppresses structure, it is characterised in that DC motor commutator electromagnetic interference presses down
Structure processed is that rotor coil is made up of 3 windings, and the commutator segment of commutator is formed by 3, the electricity installed additional between two commutator segments
Number of containers is identical with the quantity of commutator segment, and the capacitor installed additional on commutator is also formed by 3, and circuit structure is commutator segment
P1 connection rotor coils L1, rotor coil L2, capacitor C1 and capacitor C2, rotor coil the L1 other end and capacitor C1 are another
One end connects commutator segment P3, rotor coil L3 and capacitor C3, rotor coil the L2 other end and the capacitor C2 other ends together
Commutator segment P2 is connected together, and rotor coil the L3 other end and the capacitor C3 other ends also connect commutator segment P2, commutator segment together
With rotor coil and DC motor rotor one, commutator segment commutates between brush D1 and brush D2 when rotor rotates, brush-lead
X1 and brush-lead X2 connect dc source.
The DC motor commutator electromagnetic interference suppresses structure, it is characterised in that DC motor commutator electromagnetic interference presses down
Structure processed is that rotor coil is made up of 12 windings, and the commutator segment of commutator is formed by 12, is installed additional between two commutator segments
Capacitors count is identical with the quantity of commutator segment, and the capacitor installed additional on commutator is also formed by 12, and circuit structure is commutation
Piece 2P1 connection rotor coils 2L1, rotor coil 2L2, capacitor 2C1 and capacitor 2C2, the rotor coil 2L2 other end and
The capacitor 2C2 other ends connect commutator segment 2P2, rotor coil 2L3 and capacitor 2C3, the rotor coil 2L3 other end together
Commutator segment 2P3, rotor coil 2L4 and capacitor 2C4, the rotor coil 2L4 other end are connected together with the capacitor 2C3 other ends
Commutator segment 2P4, rotor coil 2L5 and capacitor 2C5, the rotor coil 2L5 other end are connected together with the capacitor 2C4 other ends
Commutator segment 2P5, rotor coil 2L6 and capacitor 2C6, the rotor coil 2L6 other end are connected together with the capacitor 2C5 other ends
Commutator segment 2P6, rotor coil 2L7 and capacitor 2C7, the rotor coil 2L7 other end are connected together with the capacitor 2C6 other ends
Commutator segment 2P8, rotor coil 2L8 and capacitor 2C8, the rotor coil 2L8 other end are connected together with the capacitor 2C7 other ends
Commutator segment 2P8, rotor coil 2L9 and capacitor 2C9, the rotor coil 2L9 other end are connected together with the capacitor 2C8 other ends
Commutator segment 2P9, rotor coil 2L10 and capacitor 2C10 are connected together with the capacitor 2C9 other ends, and rotor coil 2L10's is another
One end and the capacitor 2C10 other ends connect commutator segment 2P10, rotor coil 2L11 and capacitor 2C11, rotor coil together
The 2L11 other end and the capacitor 2C11 other ends connects commutator segment 2P11, rotor coil 2L12 and capacitor 2C12 together, turns
The subcoil 2L12 other end and the capacitor 2C12 other ends connects commutator segment 2P12, rotor coil 2L1 and capacitor together
2C1, commutator segment and rotor coil and DC motor rotor one, commutator segment changes between brush 2D1 and brush 2D2 when rotor rotates
To brush-lead 2X1 and brush-lead 2X2 connect dc source.
Engine commutator often commutates the moment that an inductance disconnects when the utility model overcomes conventional operating, and brush is with changing
Externally produce substantial amounts of electromagnetic interference to caused spark between piece, have circuit it is simple, it is compact easily dress, it is rationally distributed, fixed
The advantages of convenience, dependable performance, precision are high, cost is low, is especially reduction of cost, improves practicality and reliability, can be wide
General is applied to direct current generator field.
Brief description of the drawings
Fig. 1 DC motor commutators electromagnetic interference suppresses structural circuit schematic diagram
Fig. 2 DC motor commutators electromagnetic interference suppresses structure practical circuit schematic diagram
L1-L3 rotor coils, C1-C3 capacitors, P1-P3 commutator segments in Fig. 1.
2L1-2L12 rotor coils, 2C1-2C12 capacitors, 2P1-2P12 commutator segments in Fig. 2.
Embodiment
Fig. 1 DC motor commutators electromagnetic interference suppresses structure, and operation principle is to install electric capacity additional between two commutator segments
Device, rotor coil inductance electromotive force produces electromagnetism Interference and radiation interference in commutation when motor rotates, and makes national standard EM I
Electromagnetic interference index does not reach requirement, and the present invention is after installing capacitor additional between two commutator segments, to absorb commutator and produced
Raw electromagnetic interference.Embodiment is to install capacitor additional between two commutator segments, the capacitor installed additional between two commutator segments
Quantity is identical with the quantity of commutator segment, and the capacitor installed additional on commutator is also formed by 3, and circuit structure is commutator segment P1 connections
Rotor coil L1, rotor coil L2, capacitor C1 and capacitor C2, rotor coil the L1 other end and the capacitor C1 other ends one
The other end and the capacitor C2 other ends for playing connection commutator segment P3, rotor coil L3 and capacitor C3, rotor coil L2 connect together
Commutator segment P2 is met, rotor coil the L3 other end and the capacitor C3 other ends also connect commutator segment P2, commutator segment and rotor together
Coil and DC motor rotor one, commutator segment commutates between brush D1 and brush D2 when rotor rotates, brush-lead X1 and electricity
Brush lead X2 connects dc source.
Fig. 2 is that DC motor commutator electromagnetic interference suppresses structure practical circuit schematic diagram, and operation principle is changed at two
To capacitor is installed between piece additional, rotor coil inductance electromotive force produces electromagnetism Interference and radiation in commutation when motor rotates
Interference, makes national standard EM I electromagnetic interference indexs not reach requirement, and the present invention is after installing capacitor additional between two commutator segments, to inhale
Electromagnetic interference caused by commutator is received.Embodiment is to install capacitor additional between two commutator segments, two commutator segments it
Between the capacitors count that installs additional it is identical with the quantity of commutator segment, rotor coil is made up of 12 windings, the commutator segment of commutator by
12 form, and the capacitors count installed additional between two commutator segments is identical with the quantity of commutator segment, the electric capacity installed additional on commutator
Device is also formed by 12, commutator segment 2P1 connection rotor coils 2L1, rotor coil 2L2, capacitor 2C1 and capacitor 2C2, rotor
The coil 2L2 other end and the capacitor 2C2 other ends connects commutator segment 2P2, rotor coil 2L3 and capacitor 2C3, rotor together
The coil 2L3 other end and the capacitor 2C3 other ends connects commutator segment 2P3, rotor coil 2L4 and capacitor 2C4, rotor together
The coil 2L4 other end and the capacitor 2C4 other ends connects commutator segment 2P4, rotor coil 2L5 and capacitor 2C5, rotor together
The coil 2L5 other end and the capacitor 2C5 other ends connects commutator segment 2P5, rotor coil 2L6 and capacitor 2C6, rotor together
The coil 2L6 other end and the capacitor 2C6 other ends connects commutator segment 2P6, rotor coil 2L7 and capacitor 2C7, rotor together
The coil 2L7 other end and the capacitor 2C7 other ends connects commutator segment 2P8, rotor coil 2L8 and capacitor 2C8 together, turns
The subcoil 2L8 other end and the capacitor 2C8 other ends connects commutator segment 2P8, rotor coil 2L9 and capacitor 2C9 together,
The rotor coil 2L9 other end and the capacitor 2C9 other ends connects commutator segment 2P9, rotor coil 2L10 and capacitor together
2C10, rotor coil the 2L10 other end and the capacitor 2C10 other ends connect together commutator segment 2P10, rotor coil 2L11 and
Capacitor 2C11, rotor coil the 2L11 other end and the capacitor 2C11 other ends connect commutator segment 2P11, rotor coil together
2L12 and capacitor 2C12, rotor coil the 2L12 other end and the capacitor 2C12 other ends connect commutator segment 2P12, turned together
Subcoil 2L1 and capacitor 2C1, commutator segment and rotor coil and DC motor rotor one, commutator segment is in electricity when rotor rotates
Commutated between brush 2D1 and brush 2D2, brush-lead 2X1 and brush-lead 2X2 connect dc source.
Claims (3)
1. DC motor commutator electromagnetic interference suppresses structure, it is characterised in that DC motor commutator electromagnetic interference suppresses structure
It is to install capacitor additional between two commutator segments to absorb electromagnetic interference caused by commutator, circuit structure is that rotor coil has 3
Individual or n winding composition, the commutator segment of commutator are made up of 3 or n pieces, the capacitors count installed additional between two commutator segments with
The quantity of commutator segment is identical, and the capacitor installed additional on commutator is also formed by 3 or n.
2. DC motor commutator electromagnetic interference suppresses structure according to claim 1, it is characterised in that direct current generator commutates
It is that rotor coil is made up of 3 windings that device electromagnetic interference, which suppresses structure, and the commutator segment of commutator is formed by 3, two commutator segments
Between the capacitors count that installs additional it is identical with the quantity of commutator segment, the capacitor installed additional on commutator is also formed by 3, circuit knot
Structure is commutator segment P1 connection rotor coils L1, rotor coil L2, capacitor C1 and capacitor C2, the rotor coil L1 other end and
The capacitor C1 other ends connect commutator segment P3, rotor coil L3 and capacitor C3, rotor coil the L2 other end and electric capacity together
The device C2 other ends connect commutator segment P2 together, and rotor coil the L3 other end and the capacitor C3 other ends also connect commutator segment together
P2, commutator segment and rotor coil and DC motor rotor one, commutator segment commutates between brush D1 and brush D2 when rotor rotates,
Brush-lead X1 and brush-lead X2 connect dc source.
3. DC motor commutator electromagnetic interference suppresses structure according to claim 1, it is characterised in that direct current generator commutates
It is that rotor coil is made up of 12 windings that device electromagnetic interference, which suppresses structure, and the commutator segment of commutator is formed by 12, two commutations
The capacitors count installed additional between piece is identical with the quantity of commutator segment, and the capacitor installed additional on commutator is also formed by 12, electricity
Line structure is commutator segment 2P1 connection rotor coils 2L1, rotor coil 2L2, capacitor 2C1 and capacitor 2C2, rotor coil 2L2
The other end and the capacitor 2C2 other ends connect commutator segment 2P2, rotor coil 2L3 and capacitor 2C3, rotor coil 2L3 together
The other end and the capacitor 2C3 other ends connect commutator segment 2P3, rotor coil 2L4 and capacitor 2C4, rotor coil 2L4 together
The other end and the capacitor 2C4 other ends connect commutator segment 2P4, rotor coil 2L5 and capacitor 2C5, rotor coil 2L5 together
The other end and the capacitor 2C5 other ends connect commutator segment 2P5, rotor coil 2L6 and capacitor 2C6, rotor coil 2L6 together
The other end and the capacitor 2C6 other ends connect commutator segment 2P6, rotor coil 2L7 and capacitor 2C7, rotor coil 2L7 together
The other end and the capacitor 2C7 other ends connect commutator segment 2P8, rotor coil 2L8 and capacitor 2C8, rotor coil 2L8 together
The other end and the capacitor 2C8 other ends connect commutator segment 2P8, rotor coil 2L9 and capacitor 2C9, rotor coil 2L9 together
The other end and the capacitor 2C9 other ends connect commutator segment 2P9, rotor coil 2L10 and capacitor 2C10, rotor coil together
The 2L10 other end and the capacitor 2C10 other ends connects commutator segment 2P10, rotor coil 2L11 and capacitor 2C11 together, turns
The subcoil 2L11 other end and the capacitor 2C11 other ends connects commutator segment 2P11, rotor coil 2L12 and capacitor together
2C12, rotor coil the 2L12 other end and the capacitor 2C12 other ends connect commutator segment 2P12, rotor coil 2L1 and electricity together
Container 2C1, commutator segment and rotor coil and DC motor rotor one, commutator segment is in brush 2D1 and brush 2D2 when rotor rotates
Between commutate, brush-lead 2X1 and brush-lead 2X2 connect dc source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621219315.6U CN206962648U (en) | 2016-11-01 | 2016-11-01 | DC motor commutator electromagnetic interference suppresses structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621219315.6U CN206962648U (en) | 2016-11-01 | 2016-11-01 | DC motor commutator electromagnetic interference suppresses structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206962648U true CN206962648U (en) | 2018-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621219315.6U Active CN206962648U (en) | 2016-11-01 | 2016-11-01 | DC motor commutator electromagnetic interference suppresses structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109327169A (en) * | 2017-07-03 | 2019-02-12 | 德昌电机(深圳)有限公司 | It can provide the household electrical appliance, driving circuit and its permanent magnet DC motor of cold wind |
-
2016
- 2016-11-01 CN CN201621219315.6U patent/CN206962648U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109327169A (en) * | 2017-07-03 | 2019-02-12 | 德昌电机(深圳)有限公司 | It can provide the household electrical appliance, driving circuit and its permanent magnet DC motor of cold wind |
| CN109327169B (en) * | 2017-07-03 | 2022-04-26 | 德昌电机(深圳)有限公司 | Household appliance capable of providing cold air, driving circuit and permanent magnet direct current motor thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325200 Gongtai Electrical Appliances Co., Ltd., Ninth Building, East Head, Fourth Floor, Yunjiang Standard Factory Building, Nanbin Street, Ruian City, Zhejiang Province Patentee after: Gongtai Electric Co.,Ltd. Address before: 325200 Gongtai Electrical Appliances Co., Ltd., Ninth Building, East Head, Fourth Floor, Yunjiang Standard Factory Building, Nanbin Street, Ruian City, Zhejiang Province Patentee before: RUI'AN CITY GONGTAI ELECTRIC Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |