CN211579749U - High-voltage-resistant motor structure - Google Patents
High-voltage-resistant motor structure Download PDFInfo
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- CN211579749U CN211579749U CN202020356573.9U CN202020356573U CN211579749U CN 211579749 U CN211579749 U CN 211579749U CN 202020356573 U CN202020356573 U CN 202020356573U CN 211579749 U CN211579749 U CN 211579749U
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- carbon brush
- motor
- end cover
- conductive terminal
- brush arm
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Abstract
The utility model relates to a micromotor technical field especially relates to a high-pressure resistant motor structure, including motor casing, be provided with the magnetic shoe in the motor casing, motor casing's middle part is provided with motor shaft, motor shaft is provided with the rotor, the rotor has armature winding around, the rotor is connected with the commutator, motor casing's one end is provided with the end cover, the both sides of end cover all are provided with carbon brush arm, carbon brush arm's top is provided with conductive terminal, be connected with the screw between conductive terminal and the carbon brush arm, carbon brush arm's one end is unsettled and is provided with the carbon brush, the both sides edge of end cover is provided with the protection border that is used for keeping apart conductive terminal and magnetic shoe and is used for keeping apart conductive terminal and motor casing, the height that highly is greater. The utility model discloses compact structure and reasonable in design, insulating protection is effectual, has good high pressure resistant and operating stability, prolongs the life of motor.
Description
Technical Field
The utility model relates to a micromotor technical field especially relates to a high-voltage resistant motor structure.
Background
The micro motor is commonly used in a control system or a transmission mechanical load and is used for realizing the functions of detecting, analyzing, calculating, amplifying, executing or converting electromechanical signals or energy. The existing motor is complex in structure, scientific and reasonable in design and lack of insulation protection measures, so that the conductive terminals are in accidental electrical contact with the magnetic shoes and the motor shell during working, the motor is in electric leakage danger, inconvenience and various potential safety hazards in use are brought, and the service life of the motor is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough, provide a high voltage resistant motor structure, compact structure and reasonable in design, insulating protection is effectual, has good high pressure resistant and operating stability, prolongs the life of motor.
For realizing the above-mentioned purpose, the utility model discloses a high-pressure resistant motor structure, including motor casing, be provided with the magnetic shoe in the motor casing, motor casing's middle part is provided with motor shaft, motor shaft is provided with the rotor, the rotor has armature winding, the rotor is connected with the commutator, motor casing's one end is provided with the end cover, the both sides of end cover all are provided with carbon brush arm, carbon brush arm's top is provided with conductive terminal, be connected with the screw between conductive terminal and the carbon brush arm, carbon brush arm's the unsettled carbon brush that just is provided with of one end, the both sides edge of end cover is provided with the protection border that is used for keeping apart conductive terminal and magnetic shoe and is used for keeping apart conductive terminal and motor casing, the height that highly is.
Preferably, the protection edge is arc-shaped and is integrally formed with the outer side surface of the end cover.
Preferably, the end face of the end cover is provided with a cover plate, positioning columns are arranged on the periphery of the end cover, and positioning holes matched with the positioning columns are arranged on the periphery of the cover plate.
Preferably, the inside of the cover plate and the bottom of the motor shell are both provided with bearings connected with the rotating shaft of the motor.
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.
The utility model has the advantages that: the utility model provides a high-voltage resistant motor structure, includes motor casing, be provided with the magnetic shoe in the motor casing, motor casing's middle part is provided with motor shaft, motor shaft is provided with the rotor, the rotor has armature winding around, the rotor is connected with the commutator, motor casing's one end is provided with the end cover, the both sides of end cover all are provided with carbon brush arm, 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 and the carbon brush that is provided with of one end of carbon brush arm, the both sides edge of end cover is provided with the protection border that is used for keeping apart conductive terminal and magnetic shoe and is used for keeping apart conductive terminal and motor casing, the height that.
In the micromotor, the magnetic shoe is fixedly installed on the inner wall of the motor shell, the motor rotating shaft penetrates through the motor shell, the motor rotating shaft is connected with a rotor wound with an armature winding, the rotor is connected with the commutator, when the end cover is installed on the motor shell, the commutator enters the end cover and actively props open the carbon brush arms on two sides of the end cover, the conductive terminal and the carbon brush arms are installed on the end cover through screws, the carbon brushes are in friction contact with the commutator under the elastic force action of the carbon brush arms, the carbon brush arms are conductive bodies and are respectively electrically connected with the carbon brushes and the conductive terminals, and an external power supply supplies power to the armature winding of the rotor through the conductive terminals, the carbon brush arms. The height of the protection edge is larger than that of the conductive terminal, the protection edge can effectively isolate the conductive terminal from the magnetic shoe, so that the distance between the magnetic shoe and the conductive terminal is larger than 1mm, meanwhile, the protection edge can effectively isolate the conductive terminal from the motor shell, arc jumping and electric leakage caused by contact between the conductive terminal and the motor shell are prevented, an isolation insulation protection effect is achieved, the motor is further enabled to achieve the purposes of high voltage resistance and no arc jumping, and the electric leakage is less than 5mA per minute. The utility model discloses compact structure and reasonable in design, insulating protection is effectual, has good high pressure resistant and operating stability, prolongs the life of motor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the end cap of the present invention.
Fig. 3 is a schematic structural diagram of the bottom of the end cap 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-motor shell 2-magnetic shoe 3-motor shaft
4-rotor 5-armature winding 6-commutator
7-end cover 71-conductive terminal
72-carbon brush arm 721-end 722-connecting part
723-mounting hole 724-bayonet 725-elastic clamping block
73-screw 74-carbon brush 741-boss
75-protective edge 76-positioning column
8-cover plate 81-positioning hole 9-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 high voltage resistant motor structure of the present invention comprises a motor housing 1, a magnetic shoe 2 is arranged in the motor shell 1, a motor rotating shaft 3 is arranged in the middle of the motor shell 1, the motor rotating shaft 3 is provided with a rotor 4, an armature winding 5 is wound on the rotor 4, the rotor 4 is connected with a commutator 6, an end cover 7 is arranged at one end of the motor shell 1, carbon brush arms 72 are arranged at two sides of the end cover 7, the top of the carbon brush arm 72 is provided with a conductive terminal 71, a screw 73 is connected between the conductive terminal 71 and the carbon brush arm 72, one end of the carbon brush arm 72 is suspended and provided with a carbon brush 74, the edges of the two sides of the end cover 7 are provided with a protection edge 75 for isolating the conductive terminal 71 from the magnetic shoe 2 and isolating the conductive terminal 71 from the motor housing 1, and the height of the protection edge 75 is greater than that of the conductive terminal 71.
In the micro motor, the magnetic shoe 2 is fixedly installed on the inner wall of the motor housing 1, the motor rotating shaft 3 penetrates through the motor housing 1, the motor rotating shaft 3 is connected with the rotor 4 wound with the armature winding 5, the rotor 4 is connected with the commutator 6, when the end cover 7 is installed on the motor housing 1, the commutator 6 enters the end cover 7 and actively props open the carbon brush arms 72 on two sides of the end cover 7, the conductive terminal 71 and the carbon brush arms 72 are installed on the end cover 7 through screws 73, the carbon brush 74 is in friction contact with the commutator 6 under the elastic force action of the carbon brush arms 72, the carbon brush arms 72 are electric conductors and are respectively electrically connected with the carbon brush 74 and the conductive terminal 71, and an external power supply supplies power to the armature winding 5 of the rotor 4 sequentially through the conductive terminal 71, the carbon brush arms 72, the. The height of the protection edge 75 is greater than that of the conductive terminal 71, the protection edge 75 can effectively isolate the conductive terminal 71 from the magnetic shoe 2, so that the distance between the magnetic shoe 2 and the conductive terminal 71 is greater than 1mm, meanwhile, the protection edge 75 can effectively isolate the conductive terminal 71 from the motor housing 1, so that arc jumping and leakage caused by contact between the conductive terminal 71 and the motor housing 1 are prevented, an isolation insulation protection effect is achieved, and the purposes that the motor is resistant to high voltage and does not jump arc, and the leakage amount is less than 5mA per minute are further achieved. The utility model discloses compact structure and reasonable in design, insulating protection is effectual, has good high pressure resistant and operating stability, prolongs the life of motor.
As shown in fig. 1 and 2, the protective edge 75 of the present embodiment is curved and is integrally formed with the outer side surface of the end cap 7. Specifically, the integrally formed protecting edge 75 and the outer side surface of the end cover 7 have the advantages of more compact structure, overall attractiveness, convenience in production and manufacture, more stable and firm overall structure and long service life.
As shown in fig. 1 and 3, a cover plate 8 is disposed on an end surface of the end cover 7 of the present embodiment, positioning pillars 76 are disposed around the end cover 7, and positioning holes 81 matched with the positioning pillars 76 are disposed around the cover plate 8. Specifically, the end cover 7 is correspondingly connected with the positioning hole 81 of the cover plate 8 through the positioning column 76, so that the installation connection between the end cover 7 and the cover plate 8 is realized, the connection is stable and reliable, and the positioning effect is good.
As shown in fig. 1 and 3, the inside of the cover plate 8 and the bottom of the motor housing 1 of the present embodiment are provided with bearings 9 connected to the motor shaft 3. Specifically, set up and connect respectively on motor shaft 3's top and bottom in 8 inside and motor casing 1 bottom bearings 9 of apron, effectively stabilize motor shaft 3's operating position, improve motor shaft 3's job stabilization nature.
As shown in fig. 1, 2 and 4, the carbon brush arm 72 of the present embodiment includes an end portion 721 and a connecting portion 722 that are integrally formed, the connecting portion 722 is bent toward the end portion 721, the end portion 721 is provided with a mounting hole 723, the connecting portion 722 is provided with a bayonet 724, elastic latches 725 are arranged around the bayonet 724, and the carbon brush 74 is provided with a boss 741 that is engaged with the elastic latches 725. Specifically, the end portion 721 and the connecting portion 722 which are integrally formed are compact in structure, good in structural stability and large in supporting bearing area, the connecting portion 722 is bent toward the end portion 721 to enable the connecting portion 722 to be in a suspension state, so that the commutator 6 can enter the end cover 7 and actively prop open the connecting portion 722 of the carbon brush arm 72, the carbon brush 74 is conveniently in friction contact with the commutator 6, the end portion 721 of the carbon brush arm 72 is stably installed on the end cover 7 through the screw 73 and the conductive terminal 71, the carbon brush 74 is connected to the connecting portion 722 of the carbon brush arm 72, the carbon brush 74 is inserted into the bayonet 724 and then is in fit clamping connection with the elastic clamping block 725 through the boss 741, and further the installation and connection.
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 (5)
1. The utility model provides a high-voltage resistant motor structure, includes motor casing, be provided with the magnetic shoe in the motor casing, motor casing's middle part is provided with motor shaft, motor shaft is provided with the rotor, the rotor has armature winding in the turn, the rotor is connected with the commutator, motor casing's one end is provided with the end cover, the both sides of end cover all are provided with carbon brush arm, carbon brush arm's top is provided with conductive terminal, be connected with the screw between conductive terminal and the carbon brush arm, carbon brush arm's one end is unsettled and is provided with the carbon brush, its characterized in that: and the edges of two sides of the end cover are provided with protection edges for isolating the conductive terminals from the magnetic shoes and isolating the conductive terminals from the motor shell, and the height of each protection edge is greater than that of each conductive terminal.
2. A high voltage tolerant electric machine construction as claimed in claim 1, characterized in that: the protection border is the arc and with the lateral surface integrated into one piece of end cover.
3. A high voltage tolerant electric machine construction as claimed in claim 1, characterized in that: the end face of the end cover is provided with a cover plate, positioning columns are arranged on the periphery of the end cover, and positioning holes matched with the positioning columns are arranged on the periphery of the cover plate.
4. A high voltage tolerant electric machine construction as claimed in claim 3, characterized in that: and bearings connected with the motor rotating shaft are arranged in the cover plate and at the bottom of the motor shell.
5. A high voltage tolerant electric machine construction as claimed in claim 1, characterized in that: 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020356573.9U CN211579749U (en) | 2020-03-20 | 2020-03-20 | High-voltage-resistant motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020356573.9U CN211579749U (en) | 2020-03-20 | 2020-03-20 | High-voltage-resistant motor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211579749U true CN211579749U (en) | 2020-09-25 |
Family
ID=72526866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020356573.9U Active CN211579749U (en) | 2020-03-20 | 2020-03-20 | High-voltage-resistant motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211579749U (en) |
-
2020
- 2020-03-20 CN CN202020356573.9U patent/CN211579749U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
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. |