CN211579750U - Motor end cover group structure capable of preventing EMC interference - Google Patents
Motor end cover group structure capable of preventing EMC interference Download PDFInfo
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- CN211579750U CN211579750U CN202020356595.5U CN202020356595U CN211579750U CN 211579750 U CN211579750 U CN 211579750U CN 202020356595 U CN202020356595 U CN 202020356595U CN 211579750 U CN211579750 U CN 211579750U
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- end cover
- carbon brush
- brush arm
- motor
- conductive terminal
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Abstract
The utility model relates to a micromotor technical field especially relates to a can prevent motor end cover group structure of EMC interference, including the end cover, the both sides of end cover all are provided with carbon brush arm and connect the electric end, the top of carbon brush arm is provided with conductive terminal, be connected with the screw between conductive terminal and the carbon brush arm, the unsettled carbon brush that just is provided with of one end of carbon brush arm, the carbon brush arm is connected with conductive terminal, carbon brush electricity respectively, the inside of end cover is provided with the chamber of acceping that is used for accomodating electric capacity. The utility model discloses the structure is exquisite and reasonable in design, plays the microwave absorbing effect through ingenious installation electric capacity, reaches electromagnetic compatibility's standard requirement.
Description
Technical Field
The utility model relates to a micromotor technical field especially relates to a can prevent motor end cover group structure of EMC interference.
Background
EMC test is also called electromagnetic compatibility, refers to the comprehensive evaluation of the interference (EMI) and the anti-interference capability (EMS) of electronic products in the aspect of electromagnetic field, and is one of the most important indexes of product quality.
With the development trend of the industry, the micro motor is developing in the directions of high performance, small volume and light weight, and not only needs to complete the structural design in a smaller volume space, but also needs to meet higher EMC requirements, so that the completion of the motor design meeting the higher EMC requirements in a limited volume space is an industrial difficulty, and the motor end cover is an important component part of the motor end cover. For some micro-motors with higher EMC requirements, the micro-motors are realized by using traditional in-line electric components, but the electric components have larger volume, which not only leads to the increase of the volume of the micro-motor, but also leads to poor EMC performance of the micro-motor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough, provide a can prevent motor end cover group structure of EMC interference, the structure is exquisite and reasonable in design, plays the effect of inhaling through ingenious installation electric capacity, reaches electromagnetic compatibility's standard requirement.
In order to realize the above-mentioned purpose, the utility model discloses a can prevent motor end cover group structure of EMC interference, including the end cover, the both sides of end cover all are provided with carbon brush arm and connect the electric end, the top of carbon brush arm is provided with conductive terminal, be connected with the screw between conductive terminal and the carbon brush arm, the unsettled carbon brush that just is provided with of one end of carbon brush arm, the carbon brush arm is connected with conductive terminal, carbon brush electricity respectively, the inside of end cover is provided with the chamber of acceping that is used for accomodating electric capacity.
Preferably, the accommodating cavity is internally provided with a capacitor, and the capacitor is connected with the power connection terminal.
Preferably, the capacitor comprises a core body, the core body is connected with a first pin and a second pin, the first pin is connected with the electric connection terminal, and the second pin is led out to the outer side of the end cover.
Preferably, the conductive terminal is provided with a first connecting hole and a second connecting hole, the electric connection end longitudinally penetrates through the end cover through the first connecting hole and extends to the outside of the end cover, and the screw is connected to the end cover through the second connecting hole and the carbon brush arm.
Preferably, the carbon brush arm includes integrated into one piece's tip and connecting portion, connecting portion are towards the tip bending, the tip is provided with the mounting hole, connecting portion are provided with the bayonet socket, all be provided with the elasticity fixture block around the bayonet socket, the carbon brush is provided with the boss with elasticity fixture block cooperation joint.
Preferably, the bottom of end cover is provided with the apron, all be provided with the reference column around the end cover, all be provided with the locating hole that matches with the reference column around the apron, the inside of apron is provided with the bearing of being connected with the pivot of motor.
The utility model has the advantages that: the utility model provides a can prevent motor end cover group structure of EMC interference, includes the end cover, the both sides of end cover all are provided with carbon brush arm and connect the electric end, the top of carbon brush arm is provided with conductive terminal, be connected with the screw between conductive terminal and the carbon brush arm, the unsettled carbon brush that just is provided with of one end of carbon brush arm, the carbon brush arm is connected with conductive terminal, carbon brush electricity respectively, the inside of end cover is provided with the chamber of acceping that is used for accomodating electric capacity.
In micromotor, the carbon brush arm is provided with two and symmetric connection in the both sides of end cover, and the stiff end of carbon brush arm passes through screw and conductive terminal stable installation at the end cover, and the carbon brush also is provided with two and connects respectively in the expansion end of two carbon brush arms and keeps the suspension state, the utility model discloses the inside idle space of make full use of end cover has seted up in the inside of end cover and has acceptd the chamber, accepts the chamber and is used for the equipment or dismantle electric capacity, and it is nimble convenient to use, when acceping intracavity installation electric capacity, can make micromotor play the effect that prevents EMC interference, accepts chamber small in size, and occupation space is little, does not influence the normal function of disturbing other. When the end cover is installed on the micro motor, the commutator enters the end cover and actively props open the carbon brush arms on two sides of the end cover, the carbon brushes are in friction contact with the commutator of the rotor under the action of the elastic force of the carbon brush arms, the carbon brush arms are electric conductors and are respectively electrically connected with the carbon brushes and the conductive terminals installed on the end cover, an external power supply is sequentially conducted to the conductive terminals, the carbon brush arms, the carbon brushes, the commutator and the rotor through electric connection end heads to supply power for an armature winding of the rotor, so that the micro motor is driven to operate, the working performance is stable, the production and manufacturing cost of the micro motor is reduced. The utility model discloses the structure is exquisite and reasonable in design, plays the microwave absorbing effect through ingenious installation electric capacity, reaches electromagnetic compatibility's standard requirement.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the bottom of the present invention.
Fig. 3 is a schematic structural view of the conductive terminal of the present invention.
Fig. 4 is a schematic view of an explosion structure between the carbon brush arm and the carbon brush according to the present invention.
The reference numerals include:
1-end cover 11-positioning column
2-conductive terminal 21-first connection hole 22-second connection hole
3-electric terminal
4-carbon brush arm 41-end 42-connecting part
43-mounting hole 44-bayonet 45-elastic clamping block
5-screw
6-carbon brush 61-lug boss
7-containing Chamber
8-capacitor 81-first pin 82-second pin
83-core body
9-cover plate 91-positioning hole 92-bearing.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the utility model discloses a can prevent motor end cover group structure of EMC interference, including end cover 1, end cover 1's both sides all are provided with carbon brush arm 4 and connect electric end 3, the top of carbon brush arm 4 is provided with conductive terminal 2, be connected with screw 5 between conductive terminal 2 and the carbon brush arm 4, the one end of carbon brush arm 4 is unsettled and is provided with carbon brush 6, carbon brush arm 4 is connected with conductive terminal 2, carbon brush 6 electricity respectively, end cover 1's inside is provided with the chamber 7 of acceping that is used for accomodating electric capacity 8.
In micromotor, carbon brush arm 4 is provided with two and symmetric connection in the both sides of end cover 1, and the stiff end of carbon brush arm 4 passes through screw 5 and conductive terminal 2 steady mounting at end cover 1, and carbon brush 6 also is provided with two and connects respectively in the expansion end of two carbon brush arms 4 and keeps the suspended state, the utility model discloses the inside idle space of make full use of end cover 1 has seted up in end cover 1's inside and has acceptd chamber 7, accepts chamber 7 and is used for the equipment or dismantles electric capacity 8, and it is nimble convenient to use, when accepting chamber 7 interior installation electric capacity 8, can make micromotor play the effect that prevents EMC interference, accepts chamber 7 small in size, and occupation space is little, does not influence the normal function of disturbing other spare parts. When the end cover 1 is installed on the micromotor, the commutator enters the end cover 1 and actively props open the carbon brush arms 4 on two sides of the end cover 1, the carbon brush 6 is in friction contact with the commutator of the rotor under the action of the elastic force of the carbon brush arms 4, the carbon brush arms 4 are electric conductors and are respectively electrically connected with the carbon brush 6 and the conductive terminals 2 installed on the end cover 1, an external power supply is sequentially conducted to the conductive terminals 2, the carbon brush arms 4, the carbon brush 6, the commutator and the rotor through the electric connection end heads 3 to supply power to an armature winding of the rotor, so that the micromotor is driven to operate, the working performance is stable, the production and manufacturing cost of the micromotor is. The utility model discloses the structure is exquisite and reasonable in design, plays the effect of inhaling the ripples through ingenious installation electric capacity 8, reaches electromagnetic compatibility's standard requirement.
As shown in fig. 1, the capacitor 8 is disposed inside the receiving cavity 7 of the present embodiment, and the capacitor 8 is connected to the power contact 3. Particularly, accept chamber 7 and be used for equipment or dismantlement electric capacity 8, it is nimble convenient to use, when accepting installation electric capacity 8 in the chamber 7, it is effectual to inhale the wave for the electromagnetic interference that little motor produced because of electromagnetic reaction obtains effectively weakening through electric capacity 8, satisfies higher EMC electromagnetic compatibility requirement, reduces the production manufacturing cost of little motor, has good economic benefits.
As shown in fig. 1, the capacitor 8 of the present embodiment includes a core 83, the core 83 is connected with a first pin 81 and a second pin 82, the first pin 81 is connected with the electric terminal 3, and the second pin 82 is led out to the outside of the end cap 1. Specifically, core 83 is connected with connecing electric end 3 through first pin 81, draws forth the outside of end cover 1 through second pin 82, when end cover 1 installed little motor, second pin 82 and motor casing conductive connection, because when little motor use, the motor casing is ground connection, and then also makes electric capacity 8 be ground connection to make little motor satisfy higher EMC electromagnetic compatibility requirement, the installation is rationally distributed, and simple structure is small and exquisite, performance electric capacity 8 inhale the ripples effect.
As shown in fig. 1, 2 and 3, the conductive terminal 2 of the present embodiment is provided with a first connection hole 21 and a second connection hole 22, the conductive terminal 3 longitudinally penetrates the end cover 1 through the first connection hole 21 and extends to the outside of the end cover 1, and the screw 5 is connected to the end cover 1 through the second connection hole 22 and the carbon brush arm 4. Specifically, connect electric end 3 and vertically run through end cover 1 and extend to the outside of end cover 1 through first connecting hole 21, realize connecting electric end 3 and fix a position, make to connect electric end 3 to insert and install at end cover 1, connect reliable and stable, screw 5 passes through second connecting hole 22 with carbon brush arm 4 fixed mounting at end cover 1, the installation is simple and convenient, location effect is good.
As shown in fig. 1 and 4, the carbon brush arm 4 of the present embodiment includes an end portion 41 and a connecting portion 42 that are integrally formed, the connecting portion 42 is bent toward the end portion 41, the end portion 41 is provided with a mounting hole 43, the connecting portion 42 is provided with a bayonet 44, elastic blocks 45 are disposed around the bayonet 44, and the carbon brush 6 is provided with a boss 61 that is engaged with the elastic blocks 45 in a matching manner. Specifically, the integrally formed end portion 41 and the connecting portion 42 are compact in structure, good in structural stability, large in supporting bearing area, the connecting portion 42 is bent toward the end portion 41, the connecting portion 42 is in a suspension state, the commutator can enter the end cover 1 and actively prop open the connecting portion 42 of the carbon brush arm 4, the carbon brush 6 is conveniently in friction contact with the commutator, the end portion 41 of the carbon brush arm 4 is stably installed on the end cover 1 through the screw 5 and the conductive terminal 2, the carbon brush 6 is connected to the movable connecting portion 42 and is in the suspension state, the carbon brush 6 is inserted into the bayonet 44 and then is in fit clamping connection with the elastic clamping block 45 through the boss 61, and therefore installation and connection between the carbon brush 6 and the.
As shown in fig. 1 and 2, a cover plate 9 is disposed at the bottom of the end cover 1 of the present embodiment, positioning pillars 11 are disposed around the end cover 1, positioning holes 91 matched with the positioning pillars 11 are disposed around the cover plate 9, and a bearing 92 connected with a rotating shaft of a motor is disposed inside the cover plate 9. Specifically, the end cover 1 is correspondingly connected with the positioning hole 91 of the cover plate 9 through the positioning column 11, so that the installation connection between the end cover 1 and the cover plate 9 is realized, the bearing 92 in the cover plate 9 is connected with the rotating shaft of the motor, the working position of the rotating shaft is effectively stabilized, and the working stability is improved.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (6)
1. The utility model provides a can prevent motor end cover group structure of EMC interference, includes the end cover, the both sides of end cover all are provided with carbon brush arm and connect the electric end, the top of carbon brush arm is provided with conductive terminal, be connected with the screw between conductive terminal and the carbon brush arm, the unsettled carbon brush that just is provided with of one end of carbon brush arm, the carbon brush arm is connected its characterized in that with conductive terminal, carbon brush electricity respectively: the inside of end cover is provided with the chamber of acceping that is used for accomodating electric capacity.
2. The EMC interference preventable motor end cover set structure of claim 1, wherein: and a capacitor is arranged in the accommodating cavity and is connected with the electric connection end.
3. The EMC interference preventive motor end cover set structure as recited in claim 2, wherein: the capacitor comprises a core body, wherein the core body is connected with a first pin and a second pin, the first pin is connected with an electric connection end, and the second pin is led out to the outer side of the end cover.
4. The EMC interference preventable motor end cover set structure of claim 1, wherein: the conductive terminal is provided with a first connecting hole and a second connecting hole, the electric connection end longitudinally penetrates through the end cover through the first connecting hole and extends to the outside of the end cover, and the screw is connected to the end cover through the second connecting hole and the carbon brush arm.
5. The EMC interference preventable motor end cover set structure of claim 1, wherein: the carbon brush arm comprises an integrally formed end part and a connecting part, the connecting part is bent towards the end part, the end part is provided with a mounting hole, the connecting part is provided with a bayonet, elastic clamping blocks are arranged on the periphery of the bayonet, and the carbon brush is provided with a boss which is clamped with the elastic clamping blocks in a matched mode.
6. The EMC interference preventable motor end cover set structure of claim 1, wherein: the motor is characterized in that a cover plate is arranged at the bottom of the end cover, positioning columns are arranged on the periphery of the end cover, positioning holes matched with the positioning columns are formed in the periphery of the cover plate, and a bearing connected with a rotating shaft of the motor is arranged in the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020356595.5U CN211579750U (en) | 2020-03-20 | 2020-03-20 | Motor end cover group structure capable of preventing EMC interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020356595.5U CN211579750U (en) | 2020-03-20 | 2020-03-20 | Motor end cover group structure capable of preventing EMC interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211579750U true CN211579750U (en) | 2020-09-25 |
Family
ID=72526894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020356595.5U Active CN211579750U (en) | 2020-03-20 | 2020-03-20 | Motor end cover group structure capable of preventing EMC interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211579750U (en) |
-
2020
- 2020-03-20 CN CN202020356595.5U patent/CN211579750U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Address after: 516200 Xinwei Zhen Chang Bu Xin Po Cun, Huiyang District, Huizhou City, Guangdong Province Patentee after: Guangdong Kingly Gear Co.,Ltd. Address before: 516200 Xinwei Zhen Chang Bu Xin Po Cun, Huiyang District, Huizhou City, Guangdong Province Patentee before: GUANGDONG KINGLY GEAR Co.,Ltd. |