High-speed air blowing and sucking alternating current motor

Abstract

The utility model discloses a high-speed air blowing and sucking alternating current motor, which comprises a stator assembly, a rotor assembly and a carbon brush assembly, the stator assembly is coaxially sleeved on the outer side of the rotor assembly, the motor is characterized by further comprising a support and a shell which are coaxially arranged on the stator assembly, and the support and the shell are respectively arranged at two ends of the stator assembly; the shell is arranged at the bottom end of the stator assembly and is provided with a vent hole, the bracket is arranged at the top end of the stator assembly and is in running fit with one end of the rotor assembly, and the carbon brush assembly is arranged on the bracket. Compared with the prior art, the motor is small in size, simple in structure and high in production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, specifically to a high-speed blowing and suction AC motor. Background Technology

[0002] Currently, with rapid social development, people have a greater demand for diverse entertainment options. Pool SPA massage bubbles are a great way to relax and unwind, effectively relieving stress and soothing emotions, and are becoming increasingly popular. The core component of the bubble massage effect is the wave generator. However, because the product is used in aquatic environments, current wave generators on the market suffer from problems such as large space requirements and high production and operating costs.

[0003] For example, Chinese utility model patent No. 202221136330.X (authorization announcement No. CN217335273U) discloses "A High-Speed ​​Blowing and Suctioning Motor". The motor includes a capacitor frame, a carbon brush frame, a housing, a motor body, a front support, a fixed impeller, a moving impeller, and a fan shroud. The capacitor frame is fixed to the outer circle of the housing and has two lead wire slots. The carbon brush frame is symmetrically installed and fixed to the outer circle of the housing, and the carbon brushes are installed on the carbon brush frame. The stator assembly is sleeved inside the housing and concentrically fixed to the housing. The front support is concentrically installed on the upper surface of the housing. The rolling bearings at both ends of the rotor assembly are installed on the housing and the front support. The fixed impeller is installed on the front support, and the upper surface of the fixed impeller has a moving impeller. The fan shroud is concentrically fastened to the outer circle of the fixed impeller, and the outer flange of the inner circle of the fan shroud is used to connect to the air pipe of the wave generator. Although this blow-suction motor can effectively reduce fluid backflow and prevent air leakage at the connection, the motor uses a housing and fan cover to accommodate other components that fix the motor, resulting in a large housing, heavy weight, and a large space occupation; in addition, the structure is relatively complicated and the production efficiency is low. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-speed blowing and sucking AC motor that occupies little space and has a simple structure, in view of the above-mentioned technical status.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: it includes a stator assembly, a rotor assembly, and a carbon brush assembly. The stator assembly is coaxially sleeved on the outside of the rotor assembly. The motor further includes a bracket and a housing coaxially mounted on the stator assembly. The bracket and the housing are respectively located at both ends of the stator assembly. The housing is located at the bottom end of the stator assembly and has ventilation holes. The bracket is located at the top end of the stator assembly and rotatably engages with one end of the rotor assembly. The aforementioned carbon brush assembly is mounted on the bracket.

[0006] Preferably, the housing comprises:

[0007] The wind hood has an opening at the top and forms a cavity inside, and the bottom of the wind hood is folded outward to form a ventilation hole;

[0008] The wind cover is ring-shaped and has an opening at the top of the aforementioned wind cover, and the middle of the wind cover can accommodate the stator assembly;

[0009] The air guide plate is located inside the cavity and mounted on the stator assembly. The bottom end of the air shroud folds outward to form a ventilation hole, and the outward folded edge is directly connected to the air pipe of the wave generator, effectively reducing fluid backflow and preventing air leakage at the connection, further improving the airtightness of the pipe connection.

[0010] Preferably, the end face of the air cover plate is provided with a capacitor groove for mounting the capacitor; the inner cavity of the air cover plate extends radially inward to form multiple fixing feet, which abut against the bottom end of the stator assembly. The capacitor is fixed to the air cover plate and will not be squeezed by the air shroud and air guide plate during assembly, making the capacitor installation safer and more effective.

[0011] Preferably, the carbon brush assembly has an upwardly protruding elastic part, and correspondingly, the bracket has a snap-fit ​​interface, through which the elastic part snaps into the bracket.

[0012] Preferably, the housing is provided with annular sound-absorbing sponge, which is located between the air guide plate and the air cover plate.

[0013] Preferably, the wind cover plate is provided with a first positioning port, and correspondingly, the sound-absorbing sponge is provided with a second positioning port; the air guide plate is provided with a limiting block, and the limiting block is in limiting cooperation with the first positioning port and the second positioning port.

[0014] Preferably, the housing is provided with a moving impeller located between the fan shroud and the air guide plate. The moving impeller is located at one end of the rotor assembly and rotates coaxially with the rotor assembly. The moving impeller is made of aluminum, thereby reducing the weight of the motor.

[0015] Preferably, the rotor assembly includes:

[0016] The rotor shaft has one end rotatably engaged with the bracket; the air guide plate is provided with a through hole for the rotor shaft to pass through;

[0017] The rotor core is mounted on the rotor shaft, and the stator assembly is coaxially sleeved on the outside of the rotor core.

[0018] The commutator is mounted on the rotor shaft and spaced apart from the rotor core; and

[0019] The end plates are two in number and are respectively located at both ends of the rotor core.

[0020] To securely connect the stator assembly and the bracket, preferably, the stator assembly includes a stator core and windings disposed on the stator core; the stator core is provided with positioning holes, and correspondingly, the bracket is provided with a first mounting port, through which bolts pass to connect the stator core and the bracket.

[0021] To securely connect the stator assembly and the air guide plate, preferably, the air guide plate is provided with a second mounting port, through which bolts pass to the positioning hole and the second mounting port to connect the air guide plate and the stator core.

[0022] Compared with the prior art, the advantages of this utility model are as follows: the bracket and the housing are respectively located at both ends of the stator assembly and coaxially mounted on the stator assembly. The entire motor is fixed by the connection between the bracket, the housing and the stator assembly, which has a simple structure and high production efficiency. In addition, since the stator assembly is coaxially sleeved on the outside of the rotor assembly, the rotor assembly and the stator assembly are located outside the housing, which reduces the space occupied by the housing and reduces the size and weight of the motor. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0024] Figure 2 This is an exploded view of an embodiment;

[0025] Figure 3 This is a cross-sectional view of an embodiment;

[0026] Figure 4 This is a schematic diagram of the rotor assembly in an embodiment;

[0027] Figure 5 This is a schematic diagram of the stator assembly in an embodiment;

[0028] Figure 6 This is a schematic diagram of the carbon brush assembly in an embodiment;

[0029] Figure 7 This is a schematic diagram of the bracket used in the embodiment;

[0030] Figure 8 This is a schematic diagram of the wind cover plate in an embodiment;

[0031] Figure 9 This is a schematic diagram of the wind shield for an example embodiment. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] like Figure 1-9 The diagram shows a preferred embodiment of the present invention. The high-speed blowing and sucking AC motor includes a stator assembly 1, a rotor assembly 2, a bracket 3, a housing 4, a capacitor 5, and a carbon brush assembly 6.

[0034] like Figure 1 and Figure 2 As shown, the stator assembly 1 is coaxially sleeved on the outside of the rotor assembly 2, and the bracket 3 and the housing 4 are coaxially mounted on the stator assembly 1 and respectively located at both ends of the stator assembly 1.

[0035] The housing 4 includes a fan shroud 41, a fan cover plate 42, a sound-absorbing sponge 44, a moving impeller 45, and a guide plate 43. The fan shroud 41 has an open top and forms a cavity 41a inside. The bottom end of the fan shroud 41 is folded outward to form a ventilation hole 411. The fan cover plate 42 is located at the top of the fan shroud 41. The guide plate 43 is located in the cavity 41a and is mounted on the stator assembly 1. The fan cover plate 42 includes a capacitor groove 422, a fixing foot 423, and a clearance opening 421. The clearance opening 421 is located in the middle of the fan cover plate 42 and can accommodate the stator assembly 1. The capacitor groove 422 is located on the end face of the fan cover plate 42 and is used to install a capacitor 5. The fixing foot 423 has multiple feet and extends inward from the inner cavity of the aforementioned fan cover plate 42. The fixing foot 423 abuts against the bottom end of the stator assembly 1. The sound-absorbing sponge 44 is located between the guide plate 43 and the fan cover plate 42 and is in a ring shape. The air cover 42 has a first positioning port 424, and correspondingly, the sound-absorbing sponge 44 has a second positioning port 441. The air guide plate 43 has a limiting block 432, which engages with the first positioning port 424 and the second positioning port 441. During installation, the first positioning port 424 and the second positioning port 441 are aligned, and the limiting block 432 is passed through the first positioning port 424 and the second positioning port 441 to align the positions of the air guide plate 43, the sound-absorbing sponge 44, and the air cover 42. The moving impeller 45 is located between the air cover 41 and the air guide plate 43. The moving impeller 45 is made of aluminum to reduce weight.

[0036] like Figure 6 and Figure 7 As shown, there are two carbon brush assemblies 6 mounted side by side on the bracket 3, and the two carbon brush assemblies 6 are centrally symmetrically distributed. The carbon brush assembly 6 is provided with an upwardly protruding elastic part 61, and correspondingly, the bracket 3 is provided with a locking interface 31, through which the elastic part 61 is locked to the bracket 3.

[0037] like Figure 5 As shown, the stator assembly 1 includes a stator core 11 and windings 12 disposed on the stator core 11. The stator core 11 has positioning holes 13, and correspondingly, the bracket 3 has a first mounting port 32. Bolts pass through the positioning holes 13 and the first mounting port 32 to connect the stator core 11 and the bracket 3. The air guide plate 43 has a second mounting port 431, and bolts pass through the positioning holes 13 and the second mounting port 431 to connect the air guide plate 43 and the stator core 11. The outer diameter of the motor stator core 11 is 50-95mm, the stack thickness of the stator windings 12 is 15-35mm, and the outer diameter of the impeller is 60-120mm.

[0038] like Figure 4 As shown, the rotor assembly 2 includes a rotor shaft 21, a rotor core 22, a commutator 23, and end plates 24. One end of the rotor shaft 21 is rotatably connected to the bracket 3 via a bearing 25, and the other end is rotatably connected to the air guide plate 43 via a bearing. The air guide plate 43 has a through hole for the rotor shaft 21 to pass through. The rotor core 22 is mounted on the rotor shaft 21, and the stator assembly 1 is coaxially sleeved on the outside of the rotor core 22. The commutator 23 is mounted on the rotor shaft 21 and spaced apart from the rotor core 22. There are two end plates 24, each located at one end of the rotor core 22. The bottom end of the rotor shaft 21 has a helical section 211 with a small cross-sectional diameter, such as... Figure 2 As shown, the moving impeller 45 is provided with a through hole for the spiral section to pass through. The part of the rotor shaft 21 other than the spiral section 211 cannot pass through the through hole of the moving impeller 45 because its cross-sectional diameter is larger than that of the spiral section 211. The spiral section 211 of the rotor shaft 21 is connected to the moving impeller 45 by bolts. The outer diameter of the rotor shaft 21 is 8-10mm.

[0039] When used for wave generation, the high-speed air-blowing AC motor operates within the following voltage ranges: 100V–240V / 50–60Hz; current range: 3–9A; power range: 500–1000W; speed range: 20000–38000 RPM; and air pressure: 1000–2000 mmH2O. Tests show that the noise level of the high-speed air-blowing AC motor is approximately 90dB. The measured lifespan of the 230V, 50Hz, 850W motor is greater than 1000 hours, while the measured lifespan of the 120V, 60Hz, 850W motor is 1400 hours.

Claims

1. A high-speed blowing and sucking AC motor, comprising a stator assembly (1), a rotor assembly (2), and a carbon brush assembly (6), wherein the stator assembly (1) is coaxially sleeved on the outside of the rotor assembly (2), characterized in that: The motor also includes a bracket (3) and a housing (4) coaxially mounted on the stator assembly (1); the housing is located at the bottom of the stator assembly (1) and has a ventilation hole (411); the bracket (3) is located at the top of the stator assembly (1) and rotates with one end of the rotor assembly (2); the aforementioned carbon brush assembly (6) is mounted on the bracket (3).

2. The high-speed blowing and suction AC motor according to claim 1, characterized in that: The housing (4) includes: The wind shield (41) has an opening at the top and an internal cavity (41a) formed therein, and a ventilation hole (411) is formed at the middle of the bottom end of the wind shield (41). A wind cover (42), which is annular and has an opening at the top of the aforementioned wind shield (41), is provided. The middle part of the wind cover (42) can accommodate the stator assembly (1); and The air guide plate (43) is located inside the cavity (41a) and is mounted on the stator assembly (1).

3. The high-speed blowing and suction AC motor according to claim 2, characterized in that: The end face of the wind cover plate (42) is provided with a capacitor groove (422) for installing a capacitor (5); the inner cavity of the wind cover plate (42) extends radially inward to form a plurality of fixing feet (423), which abut against the bottom end of the stator assembly (1).

4. The high-speed blowing and suction AC motor according to claim 1, characterized in that: The carbon brush assembly (6) has an upwardly protruding elastic part (61), and correspondingly, the bracket (3) has a card interface (31), and the elastic part (61) is connected to the bracket (3) through the card interface (31).

5. The high-speed blowing and suction AC motor according to claim 1, characterized in that: The housing (4) is also provided with an annular sound-absorbing sponge (44), which is located between the air guide plate (43) and the air cover plate (42).

6. The high-speed blowing and suction AC motor according to claim 5, characterized in that: The wind cover plate (42) is provided with a first positioning port (424), and the sound-absorbing sponge (44) is provided with a second positioning port (441); the air guide plate (43) is provided with a limiting block (432), and the limiting block (432) is in a limiting cooperation with the first positioning port (424) and the second positioning port (441).

7. The high-speed blowing and suction AC motor according to claim 1, characterized in that: One end of the rotor assembly (2) is provided with a moving impeller (45) that rotates coaxially with the rotor assembly (2), and the moving impeller (45) is located between the wind cover (41) and the air guide plate (43).

8. The high-speed blowing and suction AC motor according to claim 1, characterized in that: The rotor assembly (2) includes: The rotor shaft (21) is rotatably engaged with the bracket (3) at one end and with the air guide plate (43) at the other end. The rotor core (22) is mounted on the rotor shaft (21), and the stator assembly (1) is coaxially sleeved on the outside of the rotor core (22); A commutator (23) is disposed on the rotor shaft (21) and spaced apart from the rotor core (22); and The end plates (24) are two in number and are respectively located at both ends of the rotor core (22).

9. The high-speed blowing and suction AC motor according to claim 2, characterized in that: The stator assembly (1) includes a stator core (11) and a winding (12) disposed on the stator core (11); the stator core (11) is provided with a positioning hole (13); the bracket (3) is provided with a first mounting port (32), and a bolt passes through the positioning hole (13) and the first mounting port (32) to connect the stator core (11) and the bracket (3).

10. The high-speed blowing and suction AC motor according to claim 9, characterized in that: The air guide plate (43) is provided with a second mounting port (431). The bolt passes through the positioning hole (13) and the second mounting port (431) to connect the air guide plate (43) and the stator core (11).

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