CN212367078U - Radial carbon brush device - Google Patents
Radial carbon brush device Download PDFInfo
- Publication number
- CN212367078U CN212367078U CN202021277138.3U CN202021277138U CN212367078U CN 212367078 U CN212367078 U CN 212367078U CN 202021277138 U CN202021277138 U CN 202021277138U CN 212367078 U CN212367078 U CN 212367078U
- Authority
- CN
- China
- Prior art keywords
- brush
- carbon brush
- motor
- carbon
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model relates to a radial carbon brush device, including the motor with install rotor and stator core in motor cavity, the brush yoke is installed in the pivot outside of rotor, carbon brush subassembly and protection circuit mount pad, the carbon brush subassembly includes the carbon brush, the carbon brush unit mount is in the inside of brush yoke, install the protective cover through seting up the mounting hole on the motor casing, the spout has been seted up to the position that the motor casing inner wall is close to the protective cover, install the commutator with spout sliding connection in the spout, the inner wall of commutator contacts with the outer wall of carbon brush and realizes the electric conductance and lead to, and with carbon brush sliding connection, circuit electric connection in commutator and the protection circuit mount pad. The carbon brush assembly guides electric sparks or electric arcs generated by the alternate on-off of the carbon brush and the coil connector lug from the rotor to a protection circuit of the motor from inside to outside, eliminates the commutation electric arcs generated when the motor works, realizes the arc-free commutation effect, ensures that the carbon brush has good conductive performance, and prolongs the service life of the motor.
Description
Technical Field
The utility model relates to a motor carbon brush technical field especially relates to a carbon brush unit mount on electric motor rotor, commutator motionless radial carbon brush device.
Background
The carbon brush is a device for transmitting energy or signals between a fixed part and a rotating part of a motor or a generator or other rotating machinery, is generally made of pure carbon and a coagulant, is generally square in shape, is clamped on a metal support, is tightly pressed on a rotating shaft by a spring inside, and transmits electric energy to a coil through a commutator when the motor rotates.
The carbon brush can rub due to mutual sliding of the carbon brush and the conductive electrode on the motor shell in the using process of the motor, so that loss is caused, and the carbon brush needs to be replaced periodically. However, the carbon brush and the coil connector lug are alternately switched on and off, an electric arc is generated, electromagnetic waves are generated to interfere electronic equipment, and the electric arc easily causes an oxide layer to be formed on the surface of the electrode, so that the conductivity of the electrode is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a radial carbon brush device to solve the problem that meets among the above-mentioned background art.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a radial carbon brush device, includes the motor and installs rotor and stator core in motor cavity, the rotor passes through the bearing and rotates the connection on the motor center axis, stator core fixes on the motor casing inner wall of motor, brush yoke, carbon brush subassembly and protection circuit mount pad are installed to the pivot outside of rotor, the carbon brush subassembly includes the carbon brush, the carbon brush unit mount is in the inside of brush yoke, install the protective cover through seting up the mounting hole on the motor casing, the spout has been seted up to the position that the motor casing inner wall is close to the protective cover, install the commutator with spout sliding connection in the spout, the inner wall of commutator with the outer wall of carbon brush contacts, and with carbon brush sliding connection, circuit electric connection in commutator and the protection circuit mount pad.
In the above scheme, the axle sleeve is installed through the cotter key in the pivot outside of rotor, brush yoke and carbon brush subassembly fixed mounting are in the outside of axle sleeve.
In the above scheme, the brush yoke includes brush holder and brush sleeve, the brush sleeve suit is in the inside of brush holder, the top of brush sleeve is fixed with the brush holder through the fixed pin, the bottom of brush holder is equipped with the spacing groove, the carbon brush subassembly still includes spring and copper, carbon brush, spring, copper radially set gradually from the outside to the inside in the pivot, the carbon brush passes through spring and copper electric connection, the copper clamps in the spacing groove.
In the above scheme, the brush yoke includes brush holder and brush sleeve, the draw-in groove has been seted up to the bottom of brush holder, the intercommunication has been seted up to one side inner wall of brush holder the slot of draw-in groove, the brush sleeve suit is in the inside of brush holder, brush sleeve one side bottom is fixed with the fixture block, the fixture block with the draw-in groove joint, the bottom of brush holder is equipped with the spacing groove, the carbon brush subassembly still includes spring and copper, carbon brush, spring, copper set gradually from the extroversion in the footpath of pivot, the carbon brush passes through spring and copper electric connection, the copper clamps the spacing inslot.
In the above scheme, the carbon brush is in any one of a square block-shaped structure and a cylindrical structure.
In the above scheme, the protective cover is made for rubber, the protective cover is equipped with two at least on the motor casing.
In the above scheme, the circuit in the protection circuit mounting base is a freewheeling circuit.
Compared with the prior art, the beneficial effects of the utility model are that: the carbon brush assembly guides electric arcs generated by alternate on-off between the carbon brush and the coil connector lug to a protection circuit of the motor from inside to outside from the rotor, eliminates the commutation electric arcs generated when the motor works, realizes the arc-free commutation effect, ensures that the carbon brush has good conductive performance, and prolongs the service life of the motor. After the carbon brush is worn after long-time use, when the carbon brush needs to be replaced, the protective cover is opened, and then the commutator is moved away for a certain distance into the sliding groove by using a tool, so that the carbon brush is convenient to take out and replace.
Drawings
The disclosure of the present invention is explained with reference to the drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts. Wherein:
fig. 1 is a schematic view of the internal structure of the motor of the present invention;
fig. 2 is a schematic structural view of a brush holder and a carbon brush assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of another embodiment of the brush holder and carbon brush assembly of the present invention;
FIG. 4 is a schematic top view of the structure of FIG. 3;
fig. 5 is a schematic view of the installation position of the protective cover on the motor casing according to the present invention;
reference numbers in the figures: 1-a motor; 11-a rotor; 12-a stator core; 13-motor housing; 14-a protective cover; 15-a commutator; 16-a chute; 17-a shaft sleeve; 2-brush holder; 21-a brush holder; 22-brush sleeve; 23-a limiting groove; 24-a fixed pin; 25-a fixture block; 26-a slot; 27-a card slot; 3-a carbon brush assembly; 31-a carbon brush; 32-a spring; 33-copper plate; 4-protective circuit mounting seat.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the invention only in a schematic way, and therefore they show only the relevant components of the invention.
According to the technical scheme of the utility model, under the essential spirit of the utility model, general technical personnel in this field can propose the multiple structural style and the realization that can replace each other. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be considered as limiting or restricting the technical solutions of the present invention in their entirety or in any other way.
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
Embodiment 1, as shown in fig. 1, a radial carbon brush apparatus includes a motor 1, and a rotor 11 and a stator core 12 installed in an inner cavity of the motor 1, wherein the rotor 11 is rotatably connected to a central axis of the motor 1 through a bearing, and the stator core 12 is fixed on an inner wall of a motor casing 13 of the motor 1. The bars of the rotor 11 rotate in the magnetic field of the stator core 12, the coils of the rotor 11 also cut the magnetic flux of the stator core 12 to generate current, and further to generate the magnetic field of the rotor 11, and the rotor 11 and the stator core 12 attract each other to rotate the output shaft of the motor 1. The brush holder 2, the carbon brush assembly 3 and the protective circuit mounting seat 4 are mounted on the outer side of the rotating shaft of the rotor 11. The method specifically comprises the following steps: the shaft sleeve 17 is installed on the outer side of the rotating shaft of the rotor 11 through a pin key, the shaft sleeve 17 is sleeved on the rotating shaft of the rotor 11, and the brush holder 2 and the carbon brush assembly 3 are fixedly installed on the outer side of the shaft sleeve 17.
The carbon brush assembly 3 includes a carbon brush 31, and this scheme can be realized if the carbon brush 31 is any one of a square block-shaped structure and a cylindrical structure in this embodiment.
Referring to fig. 2, the brush holder 2 includes a brush holder 21 and a brush sleeve 22, the brush sleeve 22 is sleeved inside the brush holder 21, the top of the brush sleeve 22 is fixed to the brush holder 21 by a fixing pin 24, and a limiting groove 23 is formed at the bottom of the brush holder 21. The carbon brush assembly 3 further comprises a spring 32 and a copper plate 33, the carbon brush 31, the spring 32 and the copper plate 33 are sequentially arranged from outside to inside in the radial direction of the rotating shaft, the carbon brush 31 is electrically connected with the copper plate 33 through the spring 32, and the copper plate 33 is clamped in the limiting groove 23. The carbon brush assembly 3 alternately switches on and off the carbon brush 31 and the coil connector lug to generate electric arcs, the electric arcs are guided into a protection circuit of the motor 1 from inside to outside from the rotor 11, the commutation electric arcs generated when the motor works are eliminated, the arc-free commutation effect is realized, and the carbon brush 31 is ensured to have good electric conduction performance.
The motor casing 13 is provided with a protective cover 14 through being provided with mounting holes, the protective cover 14 is made of rubber, the number of the protective covers 14 on the motor casing 13 is at least two, correspondingly, the brush holder 2 and the carbon brush component 3 are also at least two. Referring to fig. 5, three protective covers 14 are mounted on the motor housing 13 along the radial direction of the motor 1 on the motor housing 13.
The position of the inner wall of the motor shell 13, which is close to the protective cover 14, is provided with a sliding groove 16, a commutator 15 which is in sliding connection with the sliding groove 16 is installed in the sliding groove 16, the section of the commutator 15 can be made into a T shape, the transverse edge of the top of the commutator 15 is in sliding connection with the sliding groove 16, and the inner wall of the commutator 15 is in contact with the outer wall of the carbon brush 31 to realize electric conduction and is in sliding connection with the carbon brush 31. After the carbon brush 31 is worn after a long time of use, when the carbon brush 31 needs to be replaced, the protective cover 14 is opened, and then the commutator 15 is moved away from the sliding groove 16 by a tool, so that the carbon brush 31 is convenient to take out and replace.
The commutator 15 is electrically connected with a circuit in the protection circuit mounting base 4, and transmits the current transmitted by the rotor 11 through the carbon brush assembly 3 to a protection circuit in the motor, the specific circuit in the protection circuit mounting base 4 is a follow current circuit in the existing circuit, and the follow current circuit is used for providing a discharge path for the electric energy led out by the electric brush 31, so that the normal operation of the motor 1 is protected.
To sum up, the utility model discloses well carbon brush subassembly 3 is with the electric arc that the break-make produced in turn between carbon brush 31 and the coil connector lug, from rotor 11 by interior to outside guide to motor 1's protection circuit in, the switching-over electric arc that the elimination motor during operation produced realizes no arc switching-over effect, and guarantee carbon brush 31 has a good electric conductive property, extension motor 1's life. After the carbon brush 31 is worn after a long time of use, when the carbon brush 31 needs to be replaced, the protective cover 14 is opened, and then the commutator 15 is moved away from the sliding groove 16 by a tool, so that the carbon brush 31 is convenient to take out and replace.
The above-mentioned embodiments further explain in detail the objects, technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only the embodiments of the present invention, and are not intended to limit the scope of the present invention, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (7)
1. The utility model provides a radial carbon brush device, includes motor (1) and installs rotor (11) and stator core (12) in motor (1) inner chamber, rotor (11) rotate through the bearing and connect on motor (1) center axis, stator core (12) are fixed on motor casing (13) inner wall of motor (1), its characterized in that: brush yoke (2), carbon brush subassembly (3) and protection circuit mount pad (4) are installed in the pivot outside of rotor (11), carbon brush subassembly (3) include carbon brush (31), the inside at brush yoke (2) is installed in carbon brush subassembly (3), protective cover (14) are installed through seting up the mounting hole on motor casing (13), spout (16) have been seted up to the position that motor casing (13) inner wall is close to protective cover (14), install commutator (15) with spout (16) sliding connection in spout (16), the inner wall of commutator (15) with the outer wall of carbon brush (31) contacts, and with carbon brush (31) sliding connection, the one end of commutator (15) and the circuit electric connection in protection circuit mount pad (4).
2. A radial carbon brush system according to claim 1, characterized in that: the shaft sleeve (17) is installed through the cotter in the pivot outside of rotor (11), brush yoke (2) and carbon brush subassembly (3) fixed mounting are in the outside of shaft sleeve (17).
3. A radial carbon brush system according to claim 2, characterized in that: brush yoke (2) are including brush holder (21) and brush sleeve (22), brush sleeve (22) suit is in the inside of brush holder (21), the top of brush sleeve (22) is fixed with brush holder (21) through fixed pin (24), the bottom of brush holder (21) is equipped with spacing groove (23), carbon brush subassembly (3) still include spring (32) and copper (33), carbon brush (31), spring (32), copper (33) set gradually from the outside in the footpath of pivot, carbon brush (31) are through spring (32) and copper (33) electric connection, copper (33) clamp in spacing groove (23).
4. A radial carbon brush system according to claim 2, characterized in that: brush yoke (2) are including brush holder (21) and brush sleeve (22), draw-in groove (27) have been seted up to the bottom of brush holder (21), the intercommunication has been seted up to one side inner wall of brush holder (21) slot (26) of draw-in groove (27), brush sleeve (22) suit is in the inside of brush holder (21), brush sleeve (22) one side bottom is fixed with fixture block (25), fixture block (25) with draw-in groove (27) joint, the bottom of brush holder (21) is equipped with spacing groove (23), carbon brush subassembly (3) still include spring (32) and copper (33), carbon brush (31), spring (32), copper (33) set gradually from the extroversion in the footpath of pivot, carbon brush (31) pass through spring (32) and copper (33) electric connection, copper (33) clamp in spacing groove (23).
5. A radial carbon brush system according to claim 2 or 3, characterized in that: the carbon brush (31) is in any one of a square block-shaped structure and a cylindrical structure.
6. A radial carbon brush system according to claim 1, characterized in that: the protective cover (14) is made of rubber, and at least two protective covers (14) are arranged on the motor shell (13).
7. A radial carbon brush system according to claim 1, characterized in that: and a circuit in the protection circuit mounting seat (4) is a follow current circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021277138.3U CN212367078U (en) | 2020-07-03 | 2020-07-03 | Radial carbon brush device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021277138.3U CN212367078U (en) | 2020-07-03 | 2020-07-03 | Radial carbon brush device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212367078U true CN212367078U (en) | 2021-01-15 |
Family
ID=74152369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021277138.3U Active CN212367078U (en) | 2020-07-03 | 2020-07-03 | Radial carbon brush device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212367078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113472143A (en) * | 2021-08-12 | 2021-10-01 | 浙江东方机电有限公司 | Anti-interference high-speed motor with stable operation |
-
2020
- 2020-07-03 CN CN202021277138.3U patent/CN212367078U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113472143A (en) * | 2021-08-12 | 2021-10-01 | 浙江东方机电有限公司 | Anti-interference high-speed motor with stable operation |
| CN113472143B (en) * | 2021-08-12 | 2022-09-02 | 浙江东方机电有限公司 | Anti-interference high-speed motor with stable operation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109314446B (en) | Ground terminal, cover subassembly and including its motor | |
| JP5214954B2 (en) | Brush holder guide frame, brush assembly, and electric device including brush holder with brush assembly | |
| CN212367078U (en) | Radial carbon brush device | |
| EP3787153B1 (en) | Brushed permanent magnet micromotor and assembly method therefor | |
| WO2010032185A4 (en) | Electric motor and brush holder spring | |
| JP2009195030A (en) | Brush holder | |
| CN113890282A (en) | Radial carbon brush device | |
| CN101589536A (en) | Brush-commutated electric motor | |
| WO2005057759A1 (en) | Dc motor with carbon brush positioned outside | |
| CA1088141A (en) | Electrically isolated brush holder | |
| ES2312528T3 (en) | PMDC ENGINE WITH SPEED DETECTOR. | |
| KR20080109227A (en) | Power supplying apparatus of a fan motor for a car | |
| US20080197723A1 (en) | Electric motor | |
| CN108370200A (en) | Brush carrier and the dc motor for having the brush carrier | |
| KR20080005110A (en) | Rotating electric machine having improved arrangement of brush holder for effectively dissipating heat generated by brush | |
| US7687967B2 (en) | Brush assembly for alternator easy to install and capable of reliably preventing entrance of foreign matters | |
| CN110401306B (en) | Electric working machine | |
| CN106992651B (en) | Permanent magnet direct current motor and winding method of motor rotor | |
| US20110001384A1 (en) | Motor | |
| CN210927257U (en) | Plastic package motor | |
| JP6536249B2 (en) | Electric rotating machine | |
| KR910008271B1 (en) | Brush-type electric contact device for electric motor with cylindrical switch | |
| CN219144677U (en) | Carbon brush assembly capable of preventing short circuit | |
| ES450655A1 (en) | Brush carrier assembly for an electrical machine | |
| KR20080110178A (en) | Power supplying apparatus of a fan motor for a car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |