Cleaning machine motor with pump head seat

Abstract

The cleaning machine motor with the pump head seat comprises a shell, a stator and a rotor, the shell comprises a front cover and a rear seat, a cylinder is integrally formed on the front end face of the front cover, the cylinder and an end plate of the front cover jointly form the pump head seat, a front end opening of the pump head seat is used for assembling a pump head and connecting a pump body, and a containing cavity used for containing the pump head is formed in the pump head seat. A flange ring is integrally formed at the front end of the cylinder, at least three butt joint holes are evenly distributed in the flange ring in the circumferential direction, a plurality of air inlets distributed in the circumferential direction in a discrete mode are formed in the outer wall of the front cover, a plurality of air outlets are distributed in the rear end of the side wall of the rear seat in the circumferential direction in a discrete mode, and the rear end of the rotor is connected with a centrifugal impeller. The side wall of the front cover extends forwards to form the pump head seat, and the pump head seat and the front cover are integrally formed, so that the pump head seat and the motor do not need to be assembled and connected, the assembly process of the pump head seat of the cleaning machine is simplified, the assembly time is shortened, the assembly efficiency can be improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, specifically relating to a cleaning machine motor with a pump head base. Background Technology

[0002] Currently, most cleaning machine pumps and motors are connected by a separate pump head mount. The pump head mount is first connected to the motor and then to the pump body. Since the pump head mount is a separate part, this increases the assembly process and makes the assembly time longer. Furthermore, since the motor and pump head vibrate during operation, the connection between the pump head mount and the motor housing is prone to loosening, resulting in increased noise during the operation of the cleaning machine and affecting the user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a cleaning machine motor with a pump head seat, which solves the technical problems of long assembly time and unstable connection mechanism between the motor and the motor seat in traditional cleaning machines, which are prone to loosening in later use.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a cleaning machine motor with a pump head seat, including a housing, a stator and a rotor. The housing includes a front cover and a rear seat that fit together. A cylindrical body is integrally formed on the front end face of the front cover. The cylindrical body is coaxial with the shaft outlet hole on the front cover. The cylindrical body and the end plate of the front cover together form a pump head seat. The front opening of the pump head seat is used to assemble the pump head and connect the pump body. The pump head seat has a cavity for accommodating the pump head. A flange ring is integrally formed on the front end of the cylindrical body. At least three mating holes are evenly distributed around the flange ring. Multiple circumferentially discrete air inlets are opened on the outer wall of the front cover. Multiple circumferentially discrete air outlets are distributed on the rear end of the side wall of the rear seat. Each air inlet is opposite to the front side of the stator. A centrifugal impeller is connected to the rear end of the rotor. The air outlets are distributed around the centrifugal impeller and correspond to the centrifugal impeller.

[0005] As a preferred embodiment, the stator includes a stator core and windings, the rotor includes a shaft, a rotor core sleeved on the shaft, and a plurality of circumferentially distributed magnetic tiles connected to the rotor core. A front bearing and a rear bearing are respectively sleeved at both ends of the shaft, and the centrifugal impeller is sleeved on the shaft between the rear bearing and the rotor core.

[0006] As a preferred embodiment, an annular insulating pad is also fitted onto the shaft between the centrifugal impeller and the rotor core. The end face of the insulating pad facing the centrifugal impeller has an axially outwardly extending convex ring. The end face of the centrifugal impeller facing the insulating pad has an annular groove that matches the convex ring. The end face of the insulating pad facing the rotor core has a large number of outwardly protruding teeth evenly distributed circumferentially. The end face of the insulating pad between two adjacent teeth has a groove. The teeth are trapezoidal, and the tooth tip plane abuts against the end face of the rotor core.

[0007] As a preferred embodiment, a circular baffle is fitted onto the shaft between the front bearing and the rotor core. The outer diameter of the baffle is the same as the outer diameter of the rotor core. An annular base is integrally formed at the end of the baffle facing the front bearing, and a top ring is integrally formed at the end of the base facing the front bearing. The top ring abuts against the inner ring of the front bearing.

[0008] As a preferred embodiment, the rotor core has four circumferentially distributed and axially extended through holes inside. The through holes are adapted to the shape of the magnetic tiles, and each magnetic tile is inserted into the through hole. Insulating pads and baffles are respectively placed at both ends of the through holes to limit the magnetic tiles.

[0009] The beneficial effects of this utility model are as follows: By extending the side wall of the front cover forward to form the pump head seat, the pump head seat and the front cover are integrally formed. This eliminates the need for assembly and connection between the pump head seat and the motor, simplifying the assembly process of the cleaning machine pump head seat, shortening the assembly time, improving assembly efficiency, and reducing production costs. Simultaneously, the integrally formed motor housing and pump head seat eliminate the technical problem of pump head seat loosening caused by vibration of the motor and pump head during operation. This solves the technical problem of increasing noise after long-term use of the cleaning machine, which affects the user experience, and improves the overall quality of the cleaning machine product. Attached Figure Description

[0010] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0011] Figure 1 This is an exploded view of the structure of the cleaning machine motor with pump head seat described in a specific embodiment;

[0012] Figure 2 This is a schematic diagram of the specific assembly structure of the rotor described in the specific embodiment;

[0013] Figure 1 and Figure 2 In the middle: 1. Outer shell; 101. Front cover; 102. Rear seat; 2. Stator; 201. Stator core; 202. Winding; 3. Rotor; 301. Shaft; 302. Rotor core; 303. Magnet; 4. Cylindrical body; 5. Cavity; 6. Flange ring; 7. Butt hole; 8. Air inlet; 9. Air outlet; 10. Centrifugal impeller; 11. Front bearing; 12. Rear bearing; 13. Insulating pad; 14. Convex ring; 15. Annular groove; 16. Convex tooth; 17. Groove; 18. Baffle; 19. Base; 20. Top ring; 21. Through hole. Detailed Implementation

[0014] The specific implementation scheme of this utility model will now be described in detail with reference to the accompanying drawings.

[0015] like Figure 1 and Figure 2The cleaning machine motor with pump head seat shown includes a housing 1, a stator 2, and a rotor 3. The housing 1 includes a front cover 101 and a rear seat 102 that are bolted together and detachably connected. A cylindrical body 4 is integrally formed on the front end face of the front cover 101. The cylindrical body 4 is coaxial with the shaft outlet hole on the front cover 101, which is the hole through which the shaft 301 of the rotor 3 extends. The cylindrical body 4 and the end plate of the front cover 101 together constitute the pump head seat. The front opening of the pump head seat is used to assemble the pump head and connect the pump body. The pump head seat contains a cavity 5 for accommodating the pump head. A flange ring 6 is integrally formed on the front end of the cylindrical body 4. The flange ring 6 has at least three mating holes 7 evenly distributed circumferentially. The flange ring 6 is used to mate with the pump body (not shown in the figure). The front cover 101 has multiple circumferentially discrete air inlets 8 on its outer wall, and multiple circumferentially discrete air outlets 9 on the rear side wall of the rear seat. Each air inlet 8 is opposite to the front side of the stator 2. The rear end of the rotor 3 is connected to a centrifugal impeller 10, and the air outlets 9 are distributed around the centrifugal impeller 10 and correspond to the centrifugal impeller 10.

[0016] The motor of the cleaning machine has a high output power, so it generates a lot of heat. Therefore, it is necessary to cool the inside of the motor to improve the stability of the motor during use. In this embodiment, a cooling airflow is formed inside the motor by setting a centrifugal impeller 10 and an air inlet 8 and an air outlet 9, which effectively cools the inside of the motor.

[0017] The stator 2 includes a stator core 201 and windings 202. The rotor 3 includes a shaft 301, a rotor core 302 sleeved on the shaft 301, and multiple circumferentially distributed magnetic tiles 303 connected to the rotor core 302. A front bearing 11 and a rear bearing 12 are respectively sleeved at both ends of the shaft 301, and the shaft 301 is rotatably connected to the outer casing 1 through the front bearing 11 and the rear bearing 12. The centrifugal impeller 10 is sleeved on the shaft 301 between the rear bearing 12 and the rotor core 302.

[0018] An annular insulating pad 13 is also fitted onto the shaft 301 between the centrifugal impeller 10 and the rotor core 302. The end face of the insulating pad 13 facing the centrifugal impeller 10 has an axially outward protruding ring 14. The end face of the centrifugal impeller 10 facing the insulating pad 13 has an annular groove 15 that matches the protruding ring 14. The end face of the insulating pad 13 facing the rotor core 302 has a large number of outwardly protruding teeth 16 evenly distributed in a circumferential direction. The end face of the insulating pad 13 between two adjacent protruding teeth 16 has a groove 17. The protruding teeth 16 are trapezoidal, and the tooth tip plane abuts against the end face of the rotor core 302.

[0019] The installation of insulating rubber pad 13 can improve the driving effect of rotor core 302 on centrifugal impeller 10, thereby reducing the driving torque of shaft 301 on centrifugal impeller 10. This can delay the wear of the connection between centrifugal impeller 10 and shaft 301, and has a good effect on extending the service life of centrifugal impellers made of plastic products.

[0020] A circular baffle 18 is fitted onto the shaft 301 between the front bearing 11 and the rotor core 302. The outer diameter of the baffle 18 is the same as the outer diameter of the rotor core 302. An annular base 19 is integrally formed at the end of the baffle 18 facing the front bearing 11. A top ring 20 is integrally formed at the end of the base 19 facing the front bearing 11. The top ring 20 abuts against the inner ring of the front bearing 11.

[0021] The axial movement of the rotor 3 is eliminated by the limiting effect of the insulating pad 13 and the baffle 18, thereby improving the overall stability of the rotor 3.

[0022] The rotor core 302 has four circumferentially distributed and axially extended through holes 21 inside. The through holes 21 are adapted to the shape of the magnetic tiles 303. Each magnetic tile 303 is inserted into the through hole 21. The insulating pad 13 and the baffle 18 respectively block the two ends of the through hole 21 to limit the magnetic tiles 303.

[0023] By placing the magnetic tile 303 inside the through hole 21 and using the insulating pad 13 and baffle 18 to block both ends of the through hole 21, the connection stability between the magnetic tile 303 and the rotor core is effectively improved, eliminating the risk of the magnetic tile 303 loosening and falling off due to the high speed of the rotor core 302 and the high temperature of the rotor 3.

[0024] The working process of this utility model is as follows: (as shown in the figure) Figure 1 The exploded view shows the assembly of the motor, with the rotating shaft 301 extending into the cavity 5. The pump head can then be connected to the rotating shaft 301 within the cavity 5, and the pump body of the cleaning machine's water pump is connected to the pump head seat via the flange ring 6. This assembly process is simple and quick, greatly improving assembly efficiency. It eliminates the technical problem of pump head seat loosening caused by motor and pump head vibration during operation, thereby solving the technical problem of increasing noise after long-term use of the cleaning machine, which affects user experience, and improving the overall quality of the cleaning machine product.

[0025] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some examples of its application, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention.

Claims

1. A cleaning machine motor with a pump head base, comprising a housing (1), a stator (2), and a rotor (3), characterized in that, The outer casing (1) includes a front cover (101) and a rear seat (102) that fit together. A cylindrical body (4) is integrally formed on the front end face of the front cover (101). The cylindrical body (4) is coaxial with the shaft outlet hole on the front cover (101). The cylindrical body (4) and the end plate of the front cover (101) together form a pump head. The front end opening of the pump head is used to assemble the pump head and connect the pump body. The pump head has a cavity (5) for accommodating the pump head. A flange ring (6) is integrally formed on the front end of the cylindrical body. At least three mating holes (7) are evenly distributed around the flange ring (6). Multiple circumferentially discrete air inlets (8) are opened on the outer wall of the front cover (101). Multiple circumferentially discrete air outlets (9) are distributed around the rear end of the side wall of the rear seat. Each air inlet (8) is opposite to the front side of the stator (2). A centrifugal impeller (10) is connected to the rear end of the rotor (3). The air outlets (9) are distributed around the centrifugal impeller (10) and correspond to the centrifugal impeller (10).

2. The cleaning machine motor with pump head seat according to claim 1, characterized in that, The stator (2) includes a stator core (201) and a winding (202). The rotor (3) includes a shaft (301), a rotor core (302) sleeved on the shaft (301), and multiple magnets (303) evenly distributed around and connected to the rotor core (302). A front bearing (11) and a rear bearing (12) are respectively sleeved at both ends of the shaft (301). The centrifugal impeller (10) is sleeved on the shaft (301) between the rear bearing (12) and the rotor core (302).

3. The cleaning machine motor with pump head seat according to claim 2, characterized in that, An annular insulating pad (13) is also fitted on the shaft (301) between the centrifugal impeller (10) and the rotor core (302). The insulating pad (13) has an axially outward protruding ring (14) on the end face of the centrifugal impeller (10). The centrifugal impeller (10) has an annular groove (15) that matches the protruding ring (14) on the end face of the insulating pad (13). The insulating pad (13) has a large number of outwardly protruding teeth (16) evenly distributed in a discrete manner on the end face of the rotor core (302). The end face of the insulating pad (13) between two adjacent protruding teeth (16) has a groove (17). The protruding teeth (16) are trapezoidal, and the tooth tip plane abuts against the end face of the rotor core (302).

4. The cleaning machine motor with pump head seat according to claim 3, characterized in that, A circular baffle (18) is fitted on the shaft (301) between the front bearing (11) and the rotor core (302). The outer diameter of the baffle (18) is the same as the outer diameter of the rotor core (302). A circular base (19) is integrally formed at the end of the baffle (18) facing the front bearing (11). A top ring (20) is integrally formed at the end of the base (19) facing the front bearing (11). The top ring (20) abuts against the inner ring of the front bearing (11).

5. The cleaning machine motor with pump head seat according to claim 4, characterized in that, The rotor core (302) has four circumferentially distributed and axially extended through holes (21) inside. The through holes (21) are adapted to the shape of the magnetic tiles (303). Each magnetic tile (303) is inserted into the through hole (21). The insulating rubber pad (13) and the baffle (18) respectively block the magnetic tiles (303) at both ends of the through hole (21) to limit the position of the magnetic tiles (303).

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