CN215267896U - Permanent magnet synchronous motor - Google Patents
Permanent magnet synchronous motor Download PDFInfo
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- CN215267896U CN215267896U CN202120093967.4U CN202120093967U CN215267896U CN 215267896 U CN215267896 U CN 215267896U CN 202120093967 U CN202120093967 U CN 202120093967U CN 215267896 U CN215267896 U CN 215267896U
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Abstract
The utility model provides a permanent magnet synchronous motor belongs to the motor structure field. The utility model discloses a main casing body be equipped with the motor cavity and the wiring cavity of keeping apart through the flame proof faying face in the main casing body, be equipped with the motor in the motor cavity, be equipped with terminal and binding post in the wiring cavity, wiring cavity outer wall is equipped with cable introducing device, main casing body one end is equipped with the lid and closes the flange of motor cavity, the rotation axis of motor passes through bearing and flange swivelling joint, the other end of the main casing body is equipped with the lid and closes the back lid of wiring cavity still includes explosion-proof structure, explosion-proof structure is including setting up first flame proof faying face between the flange and the main casing body reaches the second flame proof faying face of setting between main casing body and back lid. The utility model has the advantages that: good explosion-proof performance, high reliability of the whole machine and good stability.
Description
Technical Field
The utility model relates to a motor structure especially relates to a PMSM of explosion-proof function.
Background
At present, the underground electric trackless transport vehicle for the mine is widely applied, but the power transmission scheme mainly comprises a clutch, a gearbox, a transmission shaft, a drive axle, tires and the like, so that the length of the transmission chain of the vehicle, the high-efficiency working area of a motor and the utilization rate of the capacity of the whole machine are narrow, and the bottleneck of the development of the pure electric explosion-proof vehicle in the coal mine is severely limited. The underground working environment of the coal mine is severe, and the reliability and the trafficability of the whole machine are high. Therefore, the explosion-proof motor which can meet the underground working condition of the coal mine and can simultaneously meet the requirement that the motor works in a high-efficiency region for a long time and improve the energy utilization rate of a vehicle and the applicability to the working condition of the mine has great significance in research.
SUMMERY OF THE UTILITY MODEL
For solving the problem in the prior art, the utility model provides a permanent magnet synchronous motor.
The utility model discloses a main casing body be equipped with the motor cavity and the wiring cavity of keeping apart through the flame proof faying face in the main casing body, be equipped with the motor in the motor cavity, be equipped with terminal and binding post in the wiring cavity, wiring cavity outer wall is equipped with cable introducing device, main casing body one end is equipped with the lid and closes the flange of motor cavity, the rotation axis of motor passes through bearing and flange swivelling joint, the other end of the main casing body is equipped with the lid and closes the back lid of wiring cavity still includes explosion-proof structure, explosion-proof structure is including setting up first flame proof faying face between the flange and the main casing body reaches the second flame proof faying face of setting between main casing body and back lid.
The utility model discloses make further improvement, be equipped with the through-hole between motor cavity and the wiring cavity, the binding post of motor passes the through-hole sets up in the wiring cavity, the binding post cover is equipped with the terminal cover, the terminal cover is equipped with third flame proof faying face with the through-hole lateral wall.
The utility model discloses do further improvement, still including setting up the radiating mechanism to the motor heat dissipation in the main casing.
The utility model discloses make further improvement, the outside main casing lateral wall of motor cavity includes interior sleeve pipe and cup joints at the outside outer tube of interior sleeve pipe, heat dissipation mechanism sets up between interior sleeve pipe and the outer tube.
The utility model discloses make further improvement, heat dissipation mechanism is the cooling bath that sets up on the outer wall of inner tube, the outer tube outer wall is equipped with the coolant liquid injection joint that communicates with the cooling bath, the coolant liquid injection joint has cup jointed the joint sealing washer.
The utility model discloses make further improvement, be equipped with first sealing washer between cooling bath periphery and the outer tube, the outer tube is equipped with the second sealing washer with the junction at main casing body both ends.
The utility model discloses make further improvement, main casing body both ends are equipped with and cup joint the position sleeve on interior sleeve pipe, the both ends and the position sleeve fixed connection of outer tube, the second sealing washer sets up the position sleeve bottom.
The utility model discloses make further improvement, the coolant liquid is water, the cooling bath is the basin, the coolant liquid injection joint includes water supply connector and water connectors, water supply connector and water connectors all with the basin intercommunication.
The utility model discloses make further improvement, one of them side of first flame proof faying face is equipped with the annular seal groove, be equipped with the third sealing washer of sealing flange and the main casing body in the annular seal groove, one of them side of second flame proof faying face is equipped with the seal groove, be equipped with the fourth sealing washer of lid and the main casing body behind the seal in the seal groove.
Compared with the prior art, the beneficial effects of the utility model are that: the main shell is divided into the motor cavity and the wiring cavity which are isolated by the explosion-proof junction surface, and the motor cavity and the wiring cavity form an explosion-proof sealing cavity when passing through the explosion-proof structure, so that the explosion-proof isolation of the moving part and the electric wiring part is realized, and the motor explosion caused by electric arcs or electric sparks and the like generated in the wiring process is prevented. Additionally, through the utility model discloses an explosion-proof sealed chamber has also realized the utility model discloses with external dangerous environment's explosion-proof isolation, further improve the explosion-proof performance of motor, the complete machine explosion-proof performance is better. Through the outside coolant liquid heat radiation structure of motor casing, the radiating effect is good to through the cooling of coolant liquid such as water-cooling and seal structure such as sealing washer sealed, can further improve explosion-proof performance, and have dustproof and waterproof effect, the reliability of complete machine is high, and stability is good, the utility model discloses be particularly useful for industrial explosion-proof electric automobile. Furtherly again, through closely laminating stator and casing to fixed with the casing, the radiating effect is better on the one hand, and on the other hand can avoid producing high temperature friction and wearing and tearing, can further improve explosion-proof performance again.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the internal structure of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the present invention includes a motor housing 2, one end of the motor housing 2 is fixed to a connecting flange 1 by a screw 12, and the other end is provided with a wiring cavity housing 4. After the wiring cavity shell 4 is connected with the motor shell 2 through the third screw 17, the positioning sleeve 23 is sleeved at the joint and then fixed through the set screw 24. The rear end of the wiring cavity shell 4 is fixedly connected with the motor rear cover 5 through a screw 18, and the wiring cavity shell 4 is further provided with a cable leading-in device 3.
The explosion-proof structure comprises a flange 1, a motor shell 2, a wiring cavity shell 4, a motor rear cover 5, a first explosion-proof joint surface 29, a second explosion-proof joint surface 31, a third explosion-proof joint surface 30 and a third explosion-proof joint surface 30, wherein the first explosion-proof joint surface 29 is arranged between the flange 1 and the motor shell 2, the second explosion-proof joint surface 31 is arranged between the wiring cavity shell 4 and the motor shell 2, and the explosion-proof joint surfaces are arranged on the joint surfaces of the motor shell and a connecting structure thereof, so that the explosion-proof performance and reliability of the whole machine are greatly improved, and the motor is effectively prevented from igniting gas such as underground gas to cause explosion. The utility model discloses be particularly useful for industry explosion-proof electric automobile field, for industry explosion-proof electric automobile special product.
The utility model discloses a divide into the main casing body motor cavity and the wiring cavity that keeps apart through the flame proof faying face to when through explosion-proof structure motor cavity and wiring cavity form explosion-proof sealed chamber, and then realize the explosion-proof isolation of moving part and electric wiring part, the motor explosion that the electric arc or electric spark etc. that produce when preventing to work a telephone switchboard arouse. Additionally, through the utility model discloses an explosion-proof sealed chamber has also realized the utility model discloses with external dangerous environment's explosion-proof isolation, further improve the explosion-proof performance of motor, the complete machine explosion-proof performance is better.
Specifically, a motor cavity is arranged in the motor shell 2, a wiring cavity is arranged in the wiring cavity shell 4, the motor cavity and the wiring cavity are isolated through an explosion-proof junction surface, specifically, a rotor assembly 10 and a stator assembly 9 of the motor are arranged in the motor cavity, a rotating shaft of the motor is rotatably connected with the flange 1 through a bearing 13, a sealing ring 28 is further sleeved on the periphery of the rotating shaft, and a rotary sealing structure 11 is further arranged at the tail ends of the flange 1 and the rotating shaft. Be equipped with the through-hole between motor cavity and the wiring cavity, the wiring end of motor is including setting up rotor subassembly 10 in the through-hole and passing the binding post 19 of through-hole, binding post 19 set up in the wiring cavity, binding post 19 cover is equipped with terminal cover 6, terminal cover 6 passes through the position sleeve 23 and fixes a position. The terminal sleeve 6 and the wiring terminal 19 are provided with a third explosion-proof joint surface 8, and the wiring terminal mounting block and the through hole are provided with a fourth explosion-proof joint surface 32. The terminal mounting block is fixedly connected with the terminal cavity housing 4 at the periphery of the through hole through a screw 15. A terminal post 20 is also provided in the wiring cavity in this example. The terminal which is easy to cause electric arc is isolated from the moving device, and the safety performance of the whole machine is further improved.
Preferably, the present embodiment further includes a heat dissipation mechanism for dissipating heat during operation of the motor, the side wall of the motor housing 2 of the present embodiment includes an inner sleeve 21 and an outer sleeve 22 sleeved outside the inner sleeve 21, and the heat dissipation mechanism is disposed between the inner sleeve 21 and the outer sleeve 22.
The cooling tank on the outer wall of the inner sleeve 21, the outer wall of the outer sleeve 22 is provided with a cooling liquid injection joint 7 communicated with the cooling tank, and the cooling liquid injection joint 7 is sleeved with a joint sealing ring for sealing.
For sealing purposes, the coolant outflow is prevented, in this case by a first sealing ring 26 between the periphery of the cooling channel and the outer jacket 22, and by second sealing rings 25, 27 at the connection of the outer jacket 22 to the two ends of the motor housing 2.
Specifically, two ends of the outer sleeve 22 are fixedly connected with a positioning sleeve 24, and the second sealing ring is arranged at the bottom of the positioning sleeve. The present embodiment adopts a sleeve type design, i.e. the inner sleeve and the outer sleeve are provided with water tank sealing grooves, and the inner sleeve and the outer sleeve form sealing through a sealing ring. The inner sleeve and the outer sleeve are fixed by positioning screws. Simple structure, easy assembly and maintenance.
As an embodiment of the present invention, the cooling liquid is water, the cooling tank is a water tank, the cooling liquid injection joint 7 includes a water inlet joint and a water outlet joint, the water inlet joint and the water outlet joint all communicate with the water tank.
The anti-explosion and anti-dust device is further provided with a waterproof and anti-dust design, specifically, an annular sealing groove is formed in one side of the first anti-explosion bonding surface 19, a third sealing ring 14 for sealing the flange 1 and the motor housing 2 is arranged in the annular sealing groove, a sealing groove is formed in the surface of the wiring cavity housing 4 of the second anti-explosion bonding surface 31, and a fourth sealing ring 16 for sealing the motor rear cover 5 and the wiring cavity housing 4 is arranged in the sealing groove. Similarly, a sealing groove is also formed in the surface of the wiring cavity shell 4 of the third flameproof combining surface 30, and a fifth sealing ring 28 is arranged in the sealing groove.
Casing and axle rotary seal, casing all are equipped with the sealing washer with the wiring chamber dress, have avoided the interior explosion accident that arouses of striking sparks of motor, have dustproof and waterproof's effect simultaneously, can keep apart outside hazardous environment, further improve the explosion-proof sealing performance of motor.
Through closely laminating stator and casing to fixed with the casing, the heat that the motor produced can be through direct conduction to interior sleeve pipe, and the cooling water in the basin on the interior sleeve pipe of rethread directly absorbs the heat, and the radiating effect is better on the one hand, and on the other hand can avoid producing high temperature friction and wearing and tearing, can further improve explosion-proof performance again.
The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the present invention are within the protection scope of the present invention.
Claims (9)
1. A permanent magnet synchronous motor is characterized in that: including the main casing body be equipped with motor cavity and the wiring cavity of keeping apart through the flame proof faying face in the main casing body, be equipped with the motor in the motor cavity, be equipped with terminal and binding post in the wiring cavity, wiring cavity outer wall is equipped with cable entry device, main casing body one end is equipped with the lid and closes the flange of motor cavity, the rotation axis of motor passes through bearing and flange swivelling joint, the other end of the main casing body is equipped with the lid and closes the back lid of wiring cavity still includes explosion-proof structure, explosion-proof structure is including setting up first flame proof faying face between flange and the main casing body, and set up the second flame proof faying face between main casing body and back lid.
2. The permanent magnet synchronous motor according to claim 1, characterized in that: the explosion-proof motor is characterized in that a through hole is formed between the motor cavity and the wiring cavity, a wiring terminal of the motor penetrates through the through hole and is arranged in the wiring cavity, a terminal sleeve is sleeved on the wiring terminal, and a third explosion-proof junction surface is arranged between the terminal sleeve and the side wall of the through hole.
3. The permanent magnet synchronous motor according to claim 1, characterized in that: the motor is characterized by further comprising a heat dissipation mechanism arranged in the main shell and used for dissipating heat of the motor.
4. The permanent magnet synchronous motor according to claim 3, characterized in that: the outside main casing lateral wall of motor cavity includes interior sleeve pipe and cup joints at the outside outer tube of interior sleeve pipe, heat dissipation mechanism sets up between interior sleeve pipe and the outer tube.
5. The permanent magnet synchronous motor according to claim 4, characterized in that: the heat dissipation mechanism is a cooling groove formed in the outer wall of the inner sleeve, a cooling liquid injection joint communicated with the cooling groove is arranged on the outer wall of the outer sleeve, and a joint sealing ring is sleeved on the cooling liquid injection joint.
6. The permanent magnet synchronous motor according to claim 5, characterized in that: a first sealing ring is arranged between the periphery of the cooling groove and the outer sleeve, and second sealing rings are arranged at the joints of the outer sleeve and the two ends of the main shell.
7. The permanent magnet synchronous motor according to claim 6, characterized in that: the main casing body both ends are equipped with cup joints the position sleeve on interior sleeve pipe, the both ends and the position sleeve fixed connection of outer tube, the second sealing washer sets up the position sleeve bottom.
8. The permanent magnet synchronous motor according to claim 5, characterized in that: the cooling liquid is water, the cooling tank is a water tank, the cooling liquid injection joint comprises a water inlet joint and a water outlet joint, and the water inlet joint and the water outlet joint are both communicated with the water tank.
9. The permanent magnet synchronous motor according to any one of claims 1 to 8, characterized in that: one side of the first flameproof junction surface is provided with an annular sealing groove, a third sealing ring of a sealing flange and the main shell is arranged in the annular sealing groove, one side of the second flameproof junction surface is provided with a sealing groove, and a fourth sealing ring of a sealing rear cover and the main shell is arranged in the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120093967.4U CN215267896U (en) | 2021-01-12 | 2021-01-12 | Permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120093967.4U CN215267896U (en) | 2021-01-12 | 2021-01-12 | Permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215267896U true CN215267896U (en) | 2021-12-21 |
Family
ID=79498563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120093967.4U Active CN215267896U (en) | 2021-01-12 | 2021-01-12 | Permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215267896U (en) |
-
2021
- 2021-01-12 CN CN202120093967.4U patent/CN215267896U/en active Active
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