CN218829480U - A single-phase asynchronous motor with overheat protection - Google Patents

Abstract

The utility model discloses a single-phase asynchronous machine with overheat protection, which comprises a housing, the casing is inside to be connected with first drive shaft and second drive shaft through the wire winding subassembly, the one end that the wire winding subassembly was kept away from to first drive shaft runs through the casing and rotates with the casing to be connected, the casing inside wall rotates and is connected with two transfer lines and two bull sticks, first drive shaft is connected with two transfer lines, adjacent one side through the cone pulley subassembly be connected through transmission assembly between transfer line and the bull stick. The utility model discloses, through mutually supporting of second drive shaft, transfer line, bull stick, first fan blade, second fan blade, cone pulley subassembly, drive assembly and radiating fin, the rotation through first fan blade and second fan blade is discharged the inside heat of casing from the outlet duct to the effectual inside heat of avoiding the casing is too high to cause the motor to damage or scrap, and then reduces the use cost of motor, improves the life of motor.

Description

A single-phase asynchronous motor with overheat protection

technical field

The utility model relates to the technical field of single-phase asynchronous motors, in particular to a single-phase asynchronous motor with overheat protection.

Background technique

An asynchronous motor using a single-phase AC power supply is called a single-phase asynchronous motor. Since a single-phase asynchronous motor only needs a single-phase AC, it is easy to use, widely used, and has a simple structure, low cost, low noise, and little interference to the radio system. Therefore, it is commonly used in household appliances and small power machinery with low power, such as electric fans, washing machines, refrigerators, air conditioners, range hoods, electric drills, medical equipment, small fans and household water pumps.

The heat dissipation of existing single-phase asynchronous motors is poor. During operation, the internal stator and rotor generate heat due to friction, which is difficult for users to detect, the heat cannot be effectively dissipated, and the temperature rises. When the overheating situation intensifies, it will cause serious damage to the motor Or be scrapped, so that the use and maintenance of the motor have caused a lot of inconvenience, and the cost of motor maintenance has been improved, and the service life of the motor has been shortened, seriously affecting the service efficiency of the motor.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a single-phase asynchronous motor with overheating protection.

In order to achieve the above purpose, the utility model adopts the following technical solution: a single-phase asynchronous motor with overheating protection, including a casing, the inside of the casing is connected with a first drive shaft and a second drive shaft through a winding assembly, The end of the first drive shaft away from the winding assembly passes through the casing and is rotatably connected with the casing. Two transmission rods and two rotating rods are rotatably connected to the inner wall of the casing. The first drive shaft passes through the bevel wheel The assembly is connected with two transmission rods, and the transmission rod on the adjacent side is connected with the rotating rod through a transmission assembly. The outer wall of the rotating rod is fixedly sleeved with the first fan blade, and the second driving shaft is far away from the One end of the winding assembly is fixedly connected with a second fan blade, and an annular air flow groove is opened on the side wall of the casing, and the annular air flow groove communicates with the inner cavity of the casing through a plurality of air holes, and the outer wall of the casing is fixed A bottom plate is connected, the side wall of the bottom plate penetrates and is fixedly connected with a plurality of air outlet pipes, the end of the air outlet pipe away from the bottom plate penetrates the casing and extends into the annular air flow groove, and the outer wall of the casing is provided with a installation mechanism.

As a further description of the above technical solution:

The bevel wheel assembly includes a vertical bevel gear fixedly socketed on the outer wall of the first drive shaft, the outer wall of the vertical bevel gear is meshed with two horizontal bevel gears, and the horizontal bevel gear is fixedly socketed on the corresponding on the outer wall of the transmission rod.

As a further description of the above technical solution:

The transmission assembly includes a transmission wheel fixedly sleeved on the transmission rod and the outer wall of the rotating rod, and the transmission wheels on adjacent sides are connected by a transmission belt.

As a further description of the above technical solution:

The installation mechanism includes a plurality of support rods fixedly connected to the outer wall of the casing, one end of the plurality of support rods away from the casing is fixedly connected to the same support plate, and the side wall of the support plate is penetrated and slidably connected to a plurality of sliding rods. The plurality of sliding rods are fixedly connected to the same bottom frame, and the inner wall of the bottom frame is provided with a shock absorbing assembly for shock absorption of the support plate.

As a further description of the above technical solution:

The shock-absorbing assembly includes a plurality of shock-absorbing telescopic rods fixedly connected to the inner wall of the bottom frame, one end of the multiple shock-absorbing telescopic rods away from the bottom frame is fixedly connected to the same movable plate, and the outer wall of the shock-absorbing telescopic rod is covered A damping spring is provided, the movable plate is fixedly connected with the lower surface of the supporting plate, and the sliding rod runs through the movable plate and is slidably connected with the movable plate.

As a further description of the above technical solution:

A plurality of cooling fins are fixedly connected to the outer wall of the casing, and one end of the cooling fins is fixedly connected to the outer wall of the bottom plate.

As a further description of the above technical solution:

The outer wall of the bottom plate is fixedly connected with an arc-shaped deflector, and the arc-shaped deflector is located inside the casing and corresponds to the second fan blade.

As a further description of the above technical solution:

The inner wall of the annular airflow groove is provided with multiple layers of sound-absorbing cotton for sound-absorbing inside the casing.

The utility model has the following beneficial effects:

1. Compared with the prior art, the single-phase asynchronous motor with overheating protection, through the second drive shaft, the transmission rod, the rotating rod, the first fan blade, the second fan blade, the cone wheel assembly, the transmission assembly and the cooling fin When the single-phase asynchronous motor is running, the first drive shaft drives the transmission rod to rotate through the cone wheel assembly, the transmission rod drives the first blade to rotate through the transmission belt, and the second drive shaft drives the second blade to rotate , through the rotation of the first fan blade and the second fan blade, the heat inside the casing is discharged from the outlet pipe, thereby effectively preventing the motor from being damaged or scrapped due to excessive heat inside the casing, thereby reducing the use cost of the motor and improving the efficiency of the motor. service life.

2. Compared with the prior art, the single-phase asynchronous motor with overheating protection can effectively reduce the noise emitted by the motor through the sound-absorbing cotton when the motor is in operation.

Description of drawings

Fig. 1 is a structural schematic diagram of a single-phase asynchronous motor with overheat protection proposed by the utility model;

Fig. 2 is a front section view of a single-phase asynchronous motor with overheat protection proposed by the utility model;

Fig. 3 is a side partial sectional view of a single-phase asynchronous motor with overheat protection proposed by the utility model;

Fig. 4 is an enlarged view of A in Fig. 3 .

illustration:

1. Case; 2. Winding assembly; 3. First drive shaft; 4. Second drive shaft; 5. Transmission rod; 6. Rotary rod; 7. First wind blade; 8. Second wind blade; 9 1. Annular air flow groove; 10. Air outlet pipe; 11. Bottom plate; 12. Arc deflector; 13. Vertical bevel gear; 14. Transverse bevel gear; 15. Drive wheel; 16. Drive belt; 17. Silencer cotton; 19. Support rod; 20. Bottom frame; 21. Support plate; 22. Movable plate; 23. Slide bar; 24. Shock-absorbing telescopic rod;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Figures 1-4, the utility model provides a single-phase asynchronous motor with overheating protection: it includes a casing 1, and the inside of the casing 1 is connected with a first drive shaft 3 and a second drive shaft 4 through a winding assembly 2, The end of the first drive shaft 3 away from the winding assembly 2 passes through the casing 1 and is rotatably connected with the casing 1. The inner side wall of the casing 1 is rotatably connected with two transmission rods 5 and two rotating rods 6. The first drive shaft 3 passes through the The bevel wheel assembly is connected with the two transmission rods 5. The bevel wheel assembly includes a vertical bevel gear 13 fixedly sleeved on the outer wall of the first drive shaft 3. The outer wall of the vertical bevel gear 13 is engaged with two horizontal bevel gears 14. , the transverse bevel gear 14 is fixedly sleeved on the outer wall of the corresponding transmission rod 5, and the transmission rod 5 on the adjacent side is connected with the rotation rod 6 through a transmission assembly, which includes a transmission assembly that is fixedly sleeved between the transmission rod 5 and the rotation shaft. The drive wheel 15 on the outer wall of the rod 6 is connected by a transmission belt 16 between the drive wheels 15 on the adjacent side. One end is fixedly connected with the second fan blade 8, and the winding assembly 2 is well known to those skilled in the art, and will not be repeated here. The first drive shaft 3 drives the transmission rod 5 to rotate through the cone wheel assembly, and the transmission rod 5 is driven by the transmission assembly. The rotating rod 6 rotates, the rotating rod 6 drives the first fan blade 7 to rotate, and the second drive shaft 4 drives the second fan blade 8 to rotate. Through the rotation of the first fan blade 7 and the second fan blade 8, the casing can be quickly rotated. 1 The heat generated inside is dissipated, thereby effectively improving the cooling effect of the motor.

Wherein, the side wall of the casing 1 is provided with an annular airflow groove 9, the annular airflow groove 9 communicates with the inner cavity of the casing 1 through a plurality of vent holes 26, and the inner wall of the annular airflow groove 9 is provided with multiple layers for The sound-absorbing cotton 17, the outer wall of the casing 1 is fixedly connected with the bottom plate 11, the side wall of the bottom plate 11 penetrates and is fixedly connected with a plurality of air outlet pipes 10, and the end of the air outlet pipe 10 away from the bottom plate 11 runs through the casing 1 and extends to the annular air flow groove 9, the outer wall of the bottom plate 11 is fixedly connected with an arc-shaped deflector 12, the arc-shaped deflector 12 is located inside the casing 1 and corresponds to the second fan 8, and the outer wall of the casing 1 is fixedly connected with a plurality of cooling fins fin 18, one end of the cooling fin 18 is fixedly connected to the outer wall of the bottom plate 11, the hot air enters the annular airflow groove 9 through the vent hole 26, and then is discharged from the casing 1 through the air outlet pipe 10, and through the setting of the sound-absorbing cotton 17, it can Effectively reduce the noise emitted by the motor during operation. When the second drive shaft 4 drives the second fan blade 8 to rotate, the airflow generated by the second fan blade 8 flows back to the winding assembly 2 through the arc deflector 12, thereby Perform blowing to accelerate the heat dissipation effect inside the casing 1 .

Further, the outer wall of the casing 1 is provided with a mounting mechanism for supporting the casing 1, the mounting mechanism includes a plurality of support rods 19 fixedly connected to the outer wall of the casing 1, and one end of the plurality of support rods 19 away from the casing 1 is fixedly connected The same support plate 21, the side wall of the support plate 21 runs through and is slidably connected with a plurality of slide bars 23, and the same bottom frame 20 is fixedly connected between the plurality of slide bars 23, and the inner wall of the bottom frame 20 is provided with a shock absorber for the support plate 21. The shock-absorbing assembly includes a plurality of shock-absorbing telescopic rods 24 fixedly connected to the inner wall of the bottom frame 20, and one end of the multiple shock-absorbing telescopic rods 24 away from the bottom frame 20 is fixedly connected with the same movable plate 22, and the shock-absorbing The outer wall of the telescopic rod 24 is covered with a shock absorbing spring 25, the movable plate 22 is fixedly connected with the lower surface of the support plate 21, the slide bar 23 runs through the movable plate 22 and is slidably connected with the movable plate 22, and the casing 1 is installed by the installation mechanism. During the operation of the motor, the motor is damped by the shock absorbing component, and the stability of the motor can be improved when the motor is impacted by the outside.

Working principle: When the motor is running, the winding assembly 2 drives the first drive shaft 3 and the second drive shaft 4 to rotate, the first drive shaft 3 drives the transmission rod 5 to rotate through the vertical bevel gear 13 and the horizontal bevel gear 14, and the transmission rod 5 Drive the rotary rod 6 to rotate through the transmission belt 16, the rotary rod 6 drives the first fan blade 7 to rotate, the second drive shaft 4 drives the second fan blade 8 to rotate, and the rotation of the first fan blade 7 and the second fan blade 8 is accelerated. The air flow rate inside the shell 1, the heat enters the annular air flow groove 9 through the air vent 26, is discharged from the air outlet pipe 10 through the annular air flow groove 9, and absorbs the heat on the side wall of the casing 1 through the cooling fins 18, and the heat passes through The cooling fins 18 volatilize into the air after being adsorbed. In this way, the cooling effect of the motor is strong, the motor is effectively protected, the safety performance is high, and the service life is long.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present utility model.

Claims (8)

1. A single-phase asynchronous motor with overheating protection, including a casing (1), characterized in that: inside the casing (1) is connected a first drive shaft (3) and a second drive shaft (3) through a winding assembly (2). Two drive shafts (4), the end of the first drive shaft (3) away from the winding assembly (2) passes through the casing (1) and is rotatably connected with the casing (1), the inner side wall of the casing (1) There are two transmission rods (5) and two rotation rods (6) connected in rotation, the first drive shaft (3) is connected with the two transmission rods (5) through the cone wheel assembly, and the transmission on the adjacent side The rod (5) and the rotating rod (6) are connected through a transmission assembly, the outer wall of the rotating rod (6) is fixedly sleeved with the first blade (7), and the second driving shaft (4) is far away from the One end of the wire assembly (2) is fixedly connected with a second fan blade (8), and the side wall of the casing (1) is provided with an annular airflow groove (9), and the annular airflow groove (9) passes through a plurality of ventilation holes (26) communicates with the inner cavity of the casing (1), the outer wall of the casing (1) is fixedly connected with a bottom plate (11), and the side wall of the bottom plate (11) is penetrated and fixedly connected with a plurality of outlet pipes (10) , the end of the air outlet pipe (10) away from the bottom plate (11) runs through the casing (1) and extends into the annular airflow groove (9), and the outer wall of the casing (1) is provided with a structure for supporting the casing (1) installation mechanism. 2. A single-phase asynchronous motor with overheating protection according to claim 1, characterized in that: the bevel wheel assembly includes a vertical bevel gear (13) fixedly sleeved on the outer wall of the first drive shaft (3) ), the outer wall of the vertical bevel gear (13) is meshed with two horizontal bevel gears (14), and the horizontal bevel gear (14) is fixedly sleeved on the outer wall of the corresponding transmission rod (5). 3. A single-phase asynchronous motor with overheat protection according to claim 1, characterized in that: the transmission assembly includes a transmission wheel ( 15), the transmission wheels (15) on the adjacent side are connected through transmission belts (16). 4. A single-phase asynchronous motor with overheating protection according to claim 1, characterized in that: the installation mechanism includes a plurality of support rods (19) fixedly connected to the outer wall of the casing (1), and a plurality of The end of the support rod (19) away from the casing (1) is fixedly connected to the same support plate (21), and the side wall of the support plate (21) is penetrated and slidably connected with a plurality of sliding rods (23). The same bottom frame (20) is fixedly connected between the sliding bars (23), and the inner wall of the bottom frame (20) is provided with a shock absorbing assembly for shock absorption of the support plate (21). 5. A single-phase asynchronous motor with overheating protection according to claim 4, characterized in that: the shock absorbing assembly includes a plurality of shock absorbing telescopic rods (24) fixedly connected to the inner wall of the bottom frame (20) One end of the plurality of shock-absorbing telescopic rods (24) away from the bottom frame (20) is fixedly connected to the same movable plate (22), and the outer wall of the shock-absorbing telescopic rods (24) is provided with a shock-absorbing spring (25) , the movable plate (22) is fixedly connected to the lower surface of the support plate (21), and the sliding rod (23) runs through the movable plate (22) and is slidably connected to the movable plate (22). 6. A single-phase asynchronous motor with overheating protection according to claim 1, characterized in that: the outer wall of the casing (1) is fixedly connected with a plurality of cooling fins (18), and the cooling fins (18) One end is fixedly connected to the outer wall of the bottom plate (11). 7. A single-phase asynchronous motor with overheat protection according to claim 1, characterized in that: the outer wall of the bottom plate (11) is fixedly connected with an arc-shaped deflector (12), and the arc-shaped deflector The plate (12) is located inside the casing (1) and corresponds to the second fan blade (8). 8. A single-phase asynchronous motor with overheating protection according to claim 1, characterized in that: the inner wall of the annular airflow groove (9) is provided with multiple layers of sound-absorbing cotton for sound-absorbing inside the casing (1) (17).

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