Energy-saving synchronous motor and energy-saving water pump

Abstract

The application provides an energy-saving synchronous motor and an energy-saving water pump. The synchronous motor comprises a shell, a stator assembly fixedly installed on the inner wall of the shell, and a rotor assembly arranged at the middle part of the shell. A shaft body is installed at the middle part of the rotor assembly. A cooling channel is arranged in the shell wall, and the cooling channel is connected with a cooling liquid inlet through a liquid conveying mechanism. The liquid conveying mechanism comprises a conveying hose and a pushing part connected with the shaft body and abutting against the conveying hose. An oil wiping mechanism is installed in the shaft body to provide lubricating oil for the pushing part. The energy-saving water pump comprises a water pump assembly provided with a water inlet and a water outlet at the bottom. The synchronous motor is fixedly installed above the water pump assembly, and the shaft body of the synchronous motor is connected with an impeller arranged in the water pump. The pushing part of the conveying mechanism is directly installed on the shaft body of the synchronous motor. The shaft body drives the water pump impeller to rotate and also drives the pushing part to drive the cooling liquid in the conveying hose.

Description

Technical Field

[0001] This invention relates to the field of synchronous motors, and particularly to an energy-saving synchronous motor and an energy-saving water pump. Background Technology

[0002] A water pump is a mechanical device that draws liquid from a low place and transports it to a higher or farther place. Its core function is to lift, transport, or pressurize liquids. It plays a crucial role in agricultural irrigation, industrial production, urban water supply, sewage treatment, and construction engineering. With the escalating global energy crisis, the high energy consumption of traditional water pump systems has become increasingly prominent. To meet energy conservation needs, solutions combining energy-efficient water pumps with energy-efficient motors are gradually being promoted and applied.

[0003] The operation of the water pump is achieved by the motor driving the impeller to rotate, thus transporting the liquid. When the water pump is running continuously, the motor, which is the power source, needs to be effectively cooled by liquid cooling or air cooling to ensure stable operation of the equipment.

[0004] While liquid cooling offers high heat dissipation efficiency, it requires an additional pump to circulate the coolant within the motor's cooling channels. Currently, existing water pump motors cannot power the coolant supply themselves, necessitating the addition of a pump to the external motor structure. Summary of the Invention

[0005] In order to solve the technical problem of how to deliver coolant through the operation of the motor itself, the present invention provides an energy-saving synchronous motor and an energy-saving water pump.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0007] This invention provides an energy-saving synchronous motor, comprising a housing; further comprising: a stator assembly fixedly mounted to the inner wall of the housing; a rotor assembly disposed in the middle of the housing, with the stator assembly surrounding the rotor assembly; a shaft mounted in the middle of the rotor assembly; a cooling channel provided within the housing wall, the cooling channel being connected to a coolant inlet via a liquid delivery mechanism; the liquid delivery mechanism comprising a delivery hose and a pusher for propelling the liquid flow within the delivery hose, the pusher being connected to the shaft and abutting against the delivery hose; and an oiling mechanism mounted within the shaft, the oiling mechanism providing lubricating oil to the pusher.

[0008] Preferably, the rotor assembly includes a rotor core, which is fixedly sleeved onto the shaft. Several magnets are bonded to the cylindrical surface of the rotor core, and the several magnets form a circular magnet group. Fixed side covers are fixedly installed on the front and rear sides of the rotor core, and the outer ring of the fixed side covers is provided with folded edges. The folded edges of the two fixed side covers are respectively fastened to the front and rear sides of the magnet group.

[0009] Preferably, the stator assembly includes two end rings and a stator block; the number of stator blocks is several, and the several stator blocks are fixedly installed between the two end rings, and the several stator blocks form a ring shape. An insulating sleeve is fitted on the stator block, and a stator winding is wound on the insulating sleeve.

[0010] Preferably, a front cover and a rear cover are fixedly installed on the front and rear sides of the housing, respectively. A first bearing is installed on the front cover, and a second bearing is installed on the rear cover. The shaft is rotatably connected to the front cover and the rear cover through the first bearing and the second bearing, respectively.

[0011] Preferably, the rear end cover is provided with a coolant inlet and a coolant outlet; a first interface is provided on the side of the rear end cover facing the outer shell, the coolant inlet and the first interface are respectively fixedly connected to a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe are respectively fixedly connected to both ends of the delivery hose, a second interface and a third interface are provided on the rear side of the outer shell, the second interface and the third interface are both connected to the cooling channel, the first interface and the coolant outlet are aligned with the second interface and the third interface respectively, and sealing rings are provided between the first interface and the second interface and between the coolant outlet and the third interface.

[0012] Preferably, a side frame is fixedly installed inside the rear end cover, and an arc-shaped groove is provided on one side of the side frame. One side of the conveying hose is arc-shaped, and the arc portion of the conveying hose is fixedly installed on the groove wall of the arc-shaped groove. There are multiple pushing parts, and the multiple pushing parts are distributed in a ring array on the shaft. Each pushing part includes a fixing frame, which is fixedly installed on the cylindrical surface of the shaft. A pressure roller is rotatably installed on the fixing frame. The pressure roller abuts against the arc portion of the conveying hose and causes the surface of the conveying hose to be recessed inward.

[0013] Preferably, the rear end of the shaft is provided with an end groove, and the oiling mechanism is disposed inside the end groove; the oiling mechanism includes a pushing block, and a plurality of extrusion inclined surfaces arranged in a circular array are arranged around the pushing block. A plurality of pressure blocks arranged in a circular array are arranged around the pushing block, and the pressure blocks are provided with pressure inclined surfaces. The pressure inclined surfaces abut against the extrusion inclined surfaces. A guide cylinder is fixedly installed on one side of the pushing block. A guide post is fixedly connected to one side wall of the end groove. The guide post is slidably sleeved with the guide cylinder. A second spring is disposed inside the guide cylinder. Each of the plurality of pressure blocks is fixedly installed with a movable post. A plurality of sliding holes arranged in a circular array are provided on the cylindrical surface of the shaft, and the sliding holes are connected to the end groove. The movable post is slidably sleeved with the sliding holes. The pressure blocks are elastically connected to the groove wall of the end groove by a third spring. The end of the movable post away from the pressure block extends into the fixed frame, and a perforated plate is fixedly installed on the end of the movable post away from the pressure block. A wiping block is fixedly installed on the side of the perforated plate facing the pressure roller.

[0014] Preferably, a side column is fixedly installed on one side of the push block, and a connecting groove is opened at the end of the side column. A one-way valve is fixedly installed at the open end of the connecting groove. A plurality of spiral hoses are fixedly installed on the side column, and the spiral hoses are connected to the connecting groove. One end of the spiral hose is fixedly connected to a third connecting pipe. The third connecting pipe is fixedly connected to a movable column, and an inner cavity communicating with the third connecting pipe is provided inside the movable column. The inner cavity is connected to a groove provided inside the orifice plate, and the groove is connected to a hole opened on the surface of the orifice plate. An oil injection mechanism for pushing the side column to move and injecting oil into the one-way valve is provided on one side of the side column.

[0015] Preferably, the oil injection mechanism includes an outer cylinder; a cap is fixedly installed at one end of the outer cylinder, a side opening is provided on the rear end cap, the cap is fixedly installed on the side opening, an oil storage cylinder is slidably installed inside the outer cylinder, and a first retaining ring and a second retaining ring are fixedly installed on the inner wall of the end of the outer cylinder away from the cap and inside the outer cylinder, respectively. The first retaining ring and the second retaining ring are located on both sides of the oil storage cylinder. A piston is connected to the inside of the oil storage cylinder, a side seat is fixedly installed on one side of the piston, and multiple recesses are opened around the side seat. Friction pins are installed in the recesses, and a first spring in a compressed state is provided in the recesses. The friction pins abut against the inner wall of the oil storage cylinder. A driving part is fixedly installed on the side wall of the cap, the output end of the driving part is fixedly connected to the side seat, and an oil outlet pipe is fixedly connected to one side of the oil storage cylinder. The oil outlet pipe is aligned with the opening end of the connecting groove.

[0016] The present invention also provides an energy-saving water pump, the energy-saving water pump comprising:

[0017] Synchronous motor, as described in the above technical solution;

[0018] A water pump assembly, the bottom of which is provided with an inlet and an outlet; a synchronous motor is fixedly installed above the water pump assembly, and the shaft of the synchronous motor is connected to the impeller inside the water pump.

[0019] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0020] The positive and progressive effects of this invention are as follows:

[0021] The aforementioned energy-saving synchronous motor and energy-saving water pump utilize a conveying mechanism for transporting coolant. This conveying mechanism is located inside the synchronous motor, eliminating the need for additional external structures. The pushing part of the conveying mechanism is directly mounted on the shaft of the synchronous motor. During motor operation, the shaft drives the water pump impeller to rotate while simultaneously driving the pushing part to transport the coolant within the conveying hose, eliminating the need for an additional pump body. Furthermore, an oil-wiping mechanism lubricates the pushing part, reducing wear between the pushing part and the conveying hose during operation and extending its service life. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the synchronous motor of the present invention.

[0023] Figure 2 This is a schematic diagram of the internal structure of the outer shell of the present invention.

[0024] Figure 3 This is a schematic diagram of the rotor assembly and stator assembly of the present invention.

[0025] Figure 4 This is a three-dimensional structural diagram of the rotor assembly of the present invention.

[0026] Figure 5 This is a schematic cross-sectional view of the rotor assembly of the present invention.

[0027] Figure 6 This is a schematic diagram of the stator assembly of the present invention.

[0028] Figure 7 This is a schematic diagram of the stator block and insulating sleeve of the present invention.

[0029] Figure 8 This is a schematic diagram of the structure of the outer side of the rear end cover of the present invention.

[0030] Figure 9 This is a schematic diagram of the structure inside the rear cover of the present invention.

[0031] Figure 10 This is a schematic diagram of the outer casing of the present invention.

[0032] Figure 11 This is a schematic diagram of the cross-sectional structure of the end cap of the present invention.

[0033] Figure 12 For the present invention Figure 11 Enlarged structural diagram of section A in the middle.

[0034] Figure 13 This is a schematic diagram of the structure of the push block of the present invention.

[0035] Figure 14 This is a schematic diagram of the internal structure of the outer cylinder of the present invention.

[0036] Figure 15 This is a schematic diagram of the structure of the energy-saving water pump of the present invention.

[0037] Explanation of reference numerals in the attached figures

[0038] 1. Outer shell; 2. Front cover; 201. First bearing; 3. Rear cover; 301. Second bearing; 302. Side opening; 4. Shaft; 401. End groove; 402. Sliding hole; 5. Rotor assembly; 501. Rotor core; 502. Magnet; 503. Fixed side cover; 6. Stator assembly; 601. End ring; 602. Stator block; 603. Insulating sleeve; 7. Cover; 8. Coolant inlet; 9. Coolant outlet; 10. First interface; 11. First connecting pipe; 12. Second connecting pipe; 13. Infusion mechanism; 1301. Side frame; 1302. Delivery hose; 1303. Fixed frame; 1304. Pressure roller; 14. Second interface; 15. Third interface; 16. Oil injection mechanism; 1601. Oil outlet pipe; 1602. Outer cylinder; 16 03. Oil reservoir; 1604. First retaining ring; 1605. Second retaining ring; 1606. Piston; 1607. Side seat; 1608. Drive unit; 1609. First spring; 1610. Friction column; 17. Oil wiping mechanism; 1701. Push block; 17011. Extrusion inclined plane; 1702. Guide cylinder; 1703. Guide column; 1704. Second spring; 1705. Pressure block; 1706. Movable column; 1707. Third spring; 1708. Third connecting pipe; 1709. Spiral hose; 1710. Side column; 1711. Connecting groove; 1712. One-way valve; 1713. Sealing gasket; 1714. Orifice plate; 1715. Wiping block; 18. Synchronous motor; 19. Water pump assembly; 20. Water inlet; 21. Water outlet. Detailed Implementation

[0039] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0040] like Figures 1-15 As shown, an energy-saving synchronous motor 18 includes a housing 1; and further includes:

[0041] Stator assembly 6, which is fixedly installed on the inner wall of housing 1;

[0042] Rotor assembly 5, which is disposed in the middle of housing 1, and stator assembly 6 surrounds the rotor assembly 5; shaft 4 is installed in the middle of rotor assembly 5;

[0043] A cooling channel is provided inside the shell wall of the outer shell 1 (located inside the outer shell 1, not shown in the figure). The cooling channel is connected to a coolant inlet 8 through a liquid delivery mechanism 13. The liquid delivery mechanism 13 includes a delivery hose 1302 and a pusher for pushing the liquid flow in the delivery hose 1302. The pusher is connected to the shaft 4 and abuts against the delivery hose 1302.

[0044] The oiling mechanism 17 is installed inside the shaft body 4 and provides lubricating oil to the pushing part.

[0045] like Figure 4 and Figure 5 As shown, as a specific technical solution, the rotor assembly 5 includes a rotor core 501, which is fixedly sleeved onto the shaft 4. Several magnets 502, which are permanent magnets, are bonded to the cylindrical surface of the rotor core 501, forming a circular magnet group. Fixed side covers 503 are fixedly installed on both the front and rear sides of the rotor core 501, and the outer ring of the fixed side covers 503 has folded edges. The folded edges of the two fixed side covers 503 are respectively fastened to the front and rear sides of the magnet group. The magnets 502 are bonded together and limited by the fixed side covers 503, ensuring the installation effect of the magnets 502 and preventing the possibility of the magnets 502 detaching during the operation of the synchronous motor 18.

[0046] like Figure 6 and Figure 7 As shown, as a specific technical solution, the stator assembly 6 includes two end rings 601 and stator blocks 602; the number of stator blocks 602 is several, and the several stator blocks 602 are fixedly installed between the two end rings 601, forming a circular shape. An insulating sleeve 603 is fitted on each stator block 602, and a stator winding is wound on the insulating sleeve 603. Compared with the laminated iron core in the prior art, the structure of the above-described stator assembly 6 is simpler and easier to process and assemble.

[0047] like Figure 2 and Figure 11As shown, as a specific technical solution, a front cover 2 and a rear cover 3 are fixedly installed on the front and rear sides of the outer casing 1, respectively. A first bearing 201 is installed on the front cover 2, and a second bearing 301 is installed on the rear cover 3. The shaft 4 is rotatably connected to the front cover 2 and the rear cover 3 via the first bearing 201 and the second bearing 301, respectively. Through the above, the shaft 4 is rotatably installed, with the front end of the shaft 4 passing through the front cover 2 and extending to the front side of the front cover 2, while the rear end of the shaft 4 is located inside the rear cover 3.

[0048] like Figures 8-10 As shown, as a specific technical solution, the rear end cover 3 is provided with a coolant inlet 8 and a coolant outlet 9; the side of the rear end cover 3 facing the outer shell 1 is provided with a first interface 10, the coolant inlet 8 and the first interface 10 are respectively fixedly connected to a first connecting pipe 11 and a second connecting pipe 12, the first connecting pipe 11 and the second connecting pipe 12 are respectively fixedly connected to both ends of the delivery hose 1302, the rear side of the outer shell 1 is provided with a second interface 14 and a third interface 15, the second interface 14 and the third interface 15 are both connected to the cooling channel, the first interface 10 and the coolant outlet 9 are aligned with the second interface 14 and the third interface 15 respectively, and sealing rings are provided between the first interface 10 and the second interface 14 and between the coolant outlet 9 and the third interface 15.

[0049] In practical implementation, both the coolant inlet 8 and the coolant outlet 9 are connected to an external coolant storage container, which is equipped with a heat dissipation and cooling structure. When the entire synchronous motor 18 operates, the shaft 4 rotates simultaneously with the connected pusher, which drives the coolant in the delivery hose 1302 to flow into the second connecting pipe 12. That is, the external coolant passes through the coolant inlet 8, the first connecting pipe 11, and the delivery hose 1302, then through the second connecting pipe 12, the first interface 10, and the second interface 14 into the cooling channel to cool the components inside the outer casing 1. After flowing through the cooling channel, the coolant is discharged from the third interface 15 into the coolant outlet 9, and then returns to the coolant storage container. This achieves liquid cooling of the internal components of the synchronous motor 18.

[0050] like Figure 9As shown, as a specific technical solution, a side frame 1301 is fixedly installed inside the rear end cover 3. One side of the side frame 1301 has an arc-shaped groove, and one side of the conveying hose 1302 is arc-shaped. The arc portion of the conveying hose 1302 is fixedly installed onto the groove wall of the arc-shaped groove. Multiple pushing parts are arranged in a circular array on the shaft 4. Each pushing part includes a fixing frame 1303, which is fixedly installed on the cylindrical surface of the shaft 4. A pressure roller 1304 is rotatably mounted on the fixing frame 1303. The pressure roller 1304 abuts against the arc portion of the conveying hose 1302, causing the surface of the conveying hose 1302 to be concave inwards. When the shaft 4 rotates, the multiple pushing parts on it rotate together, pushing the wall of the conveying hose 1302 through the pressure roller 1304 to convey coolant. Through the above design, the power of the rotation of the shaft 4 of the synchronous motor 18 is used to drive the flow of coolant. The liquid cooling process of the synchronous motor 18 does not require the installation of an external pump to drive the flow of coolant.

[0051] like Figures 11-12 As shown, as a specific technical solution, the rear end of the shaft 4 is provided with an end groove 401, and the oiling mechanism 17 is disposed inside the end groove 401; the oiling mechanism 17 includes a pushing block 1701, and a plurality of extrusion inclined surfaces 17011 arranged in a circular array are arranged around the pushing block 1701. A plurality of pressure blocks 1705 arranged in a circular array are arranged around the pushing block 1701, and the pressure blocks 1705 are provided with pressure inclined surfaces. The pressure inclined surfaces abut against the extrusion inclined surfaces 17011. A guide cylinder 1702 is fixedly installed on one side of the pushing block 1701, and a guide post 1703 is fixedly connected to one side wall of the end groove 401. The guide post 1703 is slidably sleeved with the guide cylinder 1702. The guide cylinder 1702 is provided with a second spring 1704; several pressure blocks 1705 are fixedly mounted with movable columns 1706; several sliding holes 402 are provided on the cylindrical surface of the shaft 4 in a ring array, and the sliding holes 402 are connected to the end groove 401; the movable columns 1706 are slidably sleeved with the sliding holes 402; the pressure blocks 1705 are elastically connected to the groove wall of the end groove 401 by a third spring 1707; one end of the movable column 1706 away from the pressure block 1705 extends into the fixed frame 1303; and a perforated plate 1714 is fixedly mounted on the end of the movable column 1706 away from the pressure block 1705; and a wiping block 1715 is fixedly mounted on the side of the perforated plate 1714 facing the pressure roller 1304.

[0052] like Figure 12As shown, as a specific technical solution, a side column 1710 is fixedly installed on one side of the push block 1701. A connecting groove 1711 is provided at the end of the side column 1710. A one-way valve 1712 is fixedly installed at the open end of the connecting groove 1711, and a sealing gasket 1713 is provided on the side of the one-way valve 1712. Several spiral hoses 1709 are fixedly installed on the side column 1710, and the spiral hoses 1709 communicate with the connecting groove 1711. One end of 09 is fixedly connected to a third connecting pipe 1708, the third connecting pipe 1708 is fixedly connected to a movable column 1706, and the movable column 1706 is provided with an inner cavity that communicates with the third connecting pipe 1708. The inner cavity communicates with a groove provided inside the orifice plate 1714, and the groove communicates with a hole opened on the surface of the orifice plate 1714. One side of the side column 1710 is provided with an oil injection mechanism 16 for pushing the side column 1710 to move and for injecting oil into the one-way valve 1712.

[0053] like Figures 11-14 As shown, as a specific technical solution, the oil injection mechanism 16 includes an outer cylinder 1602; a cap 7 is fixedly installed at one end of the outer cylinder 1602, and a side opening 302 is provided on the rear end cap 3. The cap 7 is fixedly installed on the side opening 302. An oil storage cylinder 1603 is slidably installed inside the outer cylinder 1602. A first retaining ring 1604 and a second retaining ring 1605 are fixedly installed on the inner wall of the end of the outer cylinder 1602 away from the cap 7 and inside the outer cylinder 1602, respectively. The first retaining ring 1604 and the second retaining ring 1605 are located on both sides of the oil storage cylinder 1603. A movable part is connected inside the oil storage cylinder 1603. The piston 1606 has a side seat 1607 fixedly installed on one side. The side seat 1607 has multiple recesses around its perimeter. Friction pins 1610 are installed in the recesses. A first spring 1609 in a compressed state is installed in the recesses. The friction pins 1610 abut against the inner wall of the oil storage cylinder 1603. A drive unit 1608 is fixedly installed on the side wall of the cover 7. The output end of the drive unit 1608 is fixedly connected to the side seat 1607. An oil outlet pipe 1601 is fixedly connected to one side of the oil storage cylinder 1603. The oil outlet pipe 1601 is aligned with the opening end of the connecting groove 1711.

[0054] The oiling mechanism 17 and the oiling mechanism 16 are used to apply oil to the surface of the pressure roller 1304, thereby reducing friction and wear between the pressure roller 1304 and the surface of the conveying hose 1302 when the pressure roller 1304 pushes against the conveying hose 1302, and improving its service life. Figures 11-12As shown, when the above-mentioned oiling is not performed, the wiping block 1715 is separated from the pressure roller 1304, the oil outlet tube 1601 is separated from the oiling mechanism 17, and when the shaft 4 rotates, the oiling mechanism 17 rotates with the shaft 4, the oil outlet tube 1601 is in a separated state, and there is no relative friction between the oil outlet tube 1601 and the sealing gasket 1713, and at the same time, there is no relative friction between the wiping block 1715 and the pressure roller 1304.

[0055] The specific operation during oiling is as follows: the drive unit 1608 pushes the side seat 1607 and piston 1606 to move together. The friction column 1610, under the action of the first spring 1609, has sufficient friction with the oil reservoir 1603, causing the oil reservoir 1603 to move along with it until it contacts the first retaining ring 1604. During this movement, the oil outlet pipe 1601 on the oil reservoir 1603 is inserted into the opening of the connecting groove 1711, and the oil outlet pipe 1601... The pusher side column 1710 and the pusher block 1701 move together. The movement of the pusher block 1701 is guided by the guide cylinder 1702 and the guide column 1703, and compresses the second spring 1704. The pusher block 1701 presses the pressure-receiving inclined surface of the pusher block 1705 by the pressing inclined surface 17011. The pressure-receiving block 1705, guided by the slider and the movable column 1706, moves together away from the axis of the shaft body 4, and compresses the third spring 1704. 07, where the wiping block 1715 contacts the pressure roller 1304, and after the above operation, the oil outlet pipe 1601 abuts against the sealing gasket 1713 to form a seal; then the drive unit 1608 continues to push the side seat 1607 and piston 1606 to move together, while at this time the oil storage cylinder 1603 is blocked by the first retaining ring 1604 and cannot move together with the side seat 1607, and then the piston 1606 pushes the oil in the oil storage cylinder 1603, so that the lubricating oil enters the opening of the connecting groove 1711 through the oil outlet pipe 1601, and the lubricating oil then... The lubricating oil is conveyed through the one-way valve 1712, the connecting groove 1711, the spiral hose 1709, the third connecting pipe 1708, and the inner cavity of the movable column 1706 into the groove in the orifice plate 1714, and then enters the wiping block 1715 through the holes in the orifice plate 1714. After the wiping block 1715 contains lubricating oil, the drive shaft 4 rotates, and the pressure roller 1304 moves in a circular motion together, and rolls and rubs against the surface of the conveying hose 1302. That is, the pressure roller 1304 rotates, and the wiping block 1715 wipes the surface of the pressure roller 1304 with oil.

[0056] After the aforementioned oiling process, the drive unit moves the side seat 1607 closer to the second retaining ring 1605, with the oil reservoir 1603 moving along with it until it comes into contact with the second retaining ring 1605. Meanwhile, the push block 1701 and the pressure block 1705 are reset by the elastic force of the second spring 1704 and the third spring 1707, respectively. The pressure block 1705, through the movable column 1706, causes the wiping block 1715 to separate from the pressure roller 1304. Both the oiling mechanism 17 and the oil outlet pipe 1601 are then reset to their original positions. Figures 11-12 As shown in the diagram; after wiping with oil, when the synchronous motor 18 is running normally, there will be no friction between the oil outlet pipe 1601 and the sealing gasket 1713, resulting in wear, and the wiping block 1715 will not continuously rub against the pressure roller 1304.

[0057] The wiping block 1715 can be made of sponge material. The drive unit 1608 can be a pneumatic cylinder or a hydraulic cylinder. Sensors are also installed on both the first retaining ring 1604 and the second retaining ring 1605 to determine whether the oil reservoir 1603 is in contact with either the first retaining ring 1604 or the second retaining ring 1605. Displacement sensors can be used.

[0058] The oil injection mechanism 16 is installed on the cover 7, and the cover 7 is fixed to the side opening 302 of the rear cover 3 by bolts. When the oil injection mechanism 16 is maintained, the cover 7 can be removed to take out the oil injection mechanism 16 from the inside of the rear cover 3. After the oil in the oil injection mechanism 16 is exhausted, the piston 1606 is moved by the drive unit 1608 to make the oil outlet pipe 1601 draw in external oil for replenishment.

[0059] The aforementioned synchronous motor 18 is applied to an energy-saving water pump, such as... Figure 2 As shown. The energy-saving water pump includes a water pump assembly 19, with an inlet 20 and an outlet 21 at the bottom. A synchronous motor 18 is fixedly installed above the water pump assembly 19, and the shaft 4 of the synchronous motor 18 is connected to an impeller inside the water pump. The synchronous motor 18 drives the impeller to rotate, allowing water to enter through the inlet 20 and exit through the outlet 21.

[0060] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. An energy saving synchronous electric machine, the synchronous electric machine (18) comprising a housing (1); characterized in that, Also include: Stator assembly (6), the stator assembly (6) is fixedly installed to the inner wall of the shell (1); Rotor assembly (5), the rotor assembly (5) is arranged at the middle of the shell (1), the stator assembly (6) is surrounded to the rotor assembly (5) around, the middle of the rotor assembly (5) is installed with the shaft body (4); Cooling channel, the shell wall of the shell (1) is provided with a cooling channel, the cooling channel is connected with the cooling liquid inlet (8) by the liquid conveying mechanism (13); the liquid conveying mechanism (13) includes a conveying hose (1302) and a pushing part for pushing the liquid flow in the conveying hose (1302), the pushing part is connected with the shaft body (4), and the pushing part abuts on the conveying hose (1302); The oil wiping mechanism (17) is installed in the shaft body (4), and the oil wiping mechanism (17) provides lubricating oil for the pushing part; The rear end of the shaft body (4) is provided with an end slot (401), and the oil wiping mechanism (17) is arranged in the end slot (401); the oil wiping mechanism (17) includes a pushing block (1701), a plurality of annularly arranged extrusion inclined surfaces (17011) are arranged around the pushing block (1701), a plurality of annularly arranged pressure receiving blocks (1705) are arranged around the pushing block (1701), and the pressure receiving blocks (1705) are provided with pressure receiving inclined surfaces, the pressure receiving inclined surfaces abut against the extrusion inclined surfaces (17011), a guide cylinder (1702) is fixedly installed on one side of the pushing block (1701), a guide column (1703) is fixedly connected to one side slot wall of the end slot (401), the guide column (1703) is slidably sleeved with the guide cylinder (1702), and a second spring (1704) is arranged in the guide cylinder (1702); a plurality of the pressure receiving blocks (1705) are fixedly installed with movable columns (1706), a plurality of annularly arranged sliding holes (402) are arranged on the cylindrical surface of the shaft body (4) and communicate with the end slot (401), the movable columns (1706) are slidably sleeved with the sliding holes (402), the pressure receiving blocks (1705) and the slot wall of the end slot (401) are elastically connected through a third spring (1707), and a hole plate (1714) is fixedly installed on the end of the movable column (1706) away from the pressure receiving block (1705), and a wiping block (1715) is fixedly installed on the side of the hole plate (1714) facing the pressure roller (1304).

2. An energy saving synchronous machine as claimed in claim 1, characterized in that: The rotor assembly (5) includes a rotor core (501), the rotor core (501) is fixedly sleeved on the shaft body (4), a plurality of magnetic steels (502) are bonded on the cylindrical surface of the rotor core (501), and the plurality of magnetic steels (502) form a circular ring type magnetic steel (502) group; the front side and the rear side of the rotor core (501) are fixedly installed with fixed side covers (503), and the outer circle of the fixed side cover (503) is provided with a folded edge, and the folded edges of the two fixed side covers (503) are buckled on the front side and the rear side of the magnetic steel (502) group respectively.

3. An energy saving synchronous machine as claimed in claim 1, characterized in that: The stator assembly (6) comprises two end rings (601) and stator blocks (602); the number of the stator blocks (602) is several, the several stator blocks (602) are fixedly installed between the two end rings (601), and the several stator blocks (602) form a circular ring type, an insulating sleeve (603) is sleeved on the stator block (602), and a stator winding is wound on the insulating sleeve (603).

4. An energy saving synchronous machine as claimed in claim 1, characterized in that: The front side and the rear side of the shell (1) are fixedly installed with a front end cover (2) and a rear end cover (3) respectively, the first bearing (201) is installed on the front end cover (2), the second bearing (301) is installed on the rear end cover (3), and the shaft body (4) is rotatably connected with the front end cover (2) and the rear end cover (3) through the first bearing (201) and the second bearing (301) respectively.

5. An energy saving synchronous machine as claimed in claim 4, characterized in that: The rear end cover (3) is provided with a cooling liquid inlet (8) and a cooling liquid outlet (9); the side of the rear end cover (3) facing the shell (1) is provided with a first interface (10), the cooling liquid inlet (8) and the first interface (10) are fixedly communicated with a first connecting pipe (11) and a second connecting pipe (12) respectively, the first connecting pipe (11) and the second connecting pipe (12) are fixedly communicated with both ends of the conveying hose (1302) respectively, the rear side of the shell (1) is provided with a second interface (14) and a third interface (15), the second interface (14) and the third interface (15) are communicated with the cooling channel, the first interface (10) and the cooling liquid outlet (9) are aligned with the second interface (14) and the third interface (15) respectively, and sealing rings are arranged between the first interface (10) and the second interface (14) and between the cooling liquid outlet (9) and the third interface (15).

6. An energy saving synchronous machine as claimed in claim 5, characterized in that: The inside of the rear end cover (3) is fixedly installed with a side frame (1301), one side of the side frame (1301) is provided with an arc-shaped groove, one side of the conveying hose (1302) is in a circular arc type, and the circular arc part of the conveying hose (1302) is fixedly installed on the groove wall of the arc-shaped groove; the number of the pushing parts is multiple, and the multiple pushing parts are annularly arranged on the shaft body (4), the pushing part comprises a fixed frame (1303), the fixed frame (1303) is fixedly installed on the cylindrical surface of the shaft body (4), and a compression roller (1304) is rotatably installed on the fixed frame (1303); the compression roller (1304) abuts on the circular arc part of the conveying hose (1302), and the surface of the conveying hose (1302) is concave inward.

7. An energy saving synchronous machine as claimed in claim 6, characterized in that: One side of the push block (1701) is fixedly installed with a side column (1710), an end of the side column (1710) is provided with a communication groove (1711), the opening end of the communication groove (1711) is fixedly installed with a one-way valve (1712), a plurality of spiral hoses (1709) are fixedly installed on the side column (1710), and the spiral hoses (1709) are in communication with the communication groove (1711), one end of the spiral hose (1709) is fixedly communicated with a third connecting pipe (1708), the third connecting pipe (1708) is fixedly connected with the movable column (1706), and the movable column (1706) is provided with an inner cavity in communication with the third connecting pipe (1708), the inner cavity is in communication with a groove body provided in the inside of the hole plate (1714), and the groove body is in communication with a hole body provided on the plate surface of the hole plate (1714); one side of the side column (1710) is provided with an oil injection mechanism (16) for pushing the side column (1710) to move and injecting oil into the one-way valve (1712).

8. An energy saving synchronous machine as claimed in claim 7, characterized in that: The oil injection mechanism (16) comprises an outer cylinder (1602); one end of the outer cylinder (1602) is fixedly installed with a cover (7), the rear end cover (3) is provided with a side opening (302), the cover (7) is fixedly installed on the side opening (302), and the inside of the outer cylinder (1602) is slidably installed with an oil storage cylinder (1603), and the inner wall of the end of the outer cylinder (1602) away from the cover (7) and the inner part of the outer cylinder (1602) are respectively fixedly installed with a first blocking ring (1604) and a second blocking ring (1605), the first blocking ring (1604) and the second blocking ring (1605) are respectively located on the two sides of the oil storage cylinder (1603), the inside of the oil storage cylinder (1603) is matched with a piston (1606), one side of the piston (1606) is fixedly installed with a side seat (1607), a plurality of recessed holes are provided around the side seat (1607), the recessed holes are matched with friction columns (1610), the recessed holes are provided with first springs (1609) in a compressed state, and the friction columns (1610) abut to the inner wall of the oil storage cylinder (1603); the side wall of the cover (7) is fixedly installed with a driving part (1608), the output end of the driving part (1608) is fixedly connected with the side seat (1607), and one side of the oil storage cylinder (1603) is fixedly communicated with an oil outlet plug (1601), and the oil outlet plug (1601) is aligned with the opening end of the communication groove (1711).

9. An energy saving water pump characterized by, The energy-saving water pump comprises: The synchronous motor (18) according to any one of claims 1 to 8; The water pump assembly (19) is provided with a water inlet (20) and a water outlet (21) at the bottom; the synchronous motor (18) is fixedly installed above the water pump assembly (19), and the shaft body (4) of the synchronous motor (18) is connected with an impeller arranged in the water pump.

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