CN218041024U

CN218041024U - Dry-wet air suction high-speed brushless motor

Info

Publication number: CN218041024U
Application number: CN202220911345.2U
Authority: CN
Inventors: 刘铭战; 梁鑫
Original assignee: Dongguan Xinya Electromechanical Co ltd
Current assignee: Dongguan Xinya Electromechanical Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-12-13
Anticipated expiration: 2032-04-20

Abstract

A dry-wet air suction high-speed brushless motor relates to the field of fan equipment. The inner shell sets up in fan shell, and the set casing is connected with fan shell, and the back shroud is connected with the set casing, and the fan blade sets up in the inner shell, and the fan blade is connected with the pivot, and stator core sets up in the set casing, and stator core is run through in the pivot, fan shell on be provided with first air intake, drainage groove, the set casing on be provided with vent, water conservancy diversion face, the vent sets up in the shell lateral wall and is linked together with interior casing, the water conservancy diversion face sets up in the set casing lower part, the partition strip sets up between interior casing and shell body, decide impeller blade and partition strip constitution a plurality of wind channels that communicate with the external world. Inside can not directly get into the motor with the rivers drainage through the shell that sets up drainage type, motor inner bearing work area has set up multiple labyrinth structure, can be fine hinder the aqueous vapor, two wind channels can blow away the aqueous vapor again when guaranteeing ventilation performance, very big improvement the life of fan.

Description

Dry-wet air suction high-speed brushless motor

Technical Field

The utility model relates to a dry and wet high-speed brushless motor that induced drafts relates to fan equipment field.

Background

The induced-draft fan is a equipment commonly used, and the high-speed fan that induced drafts on the market at present all is stator open structure, and the wind channel is the intercommunication with motor inside mostly, can only use under the operating mode of dry-breeze, and in case be used for under the wet state environment of wet state sucking, inside steam or rivers that are located outside can get into the motor, influence the life-span of motor in the environment of wet state.

Some existing fans adopt a multiple sealing structure arranged inside the fan in order to solve the problem that the fans cannot be used in a wet environment, and a fan shell also adopts the sealing structure, so that the problem that the fans cannot be well used in the wet environment is solved to a certain extent, but heat generated by the fans during working cannot be well dissipated, and the service life of the fans is also influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to defect among the prior art or not enough, provide a dry and wet high-speed brushless motor that induced drafts, inside can not directly get into the motor with the rivers drainage through the shell that sets up drainage type, motor inner bearing work area has set up multiple labyrinth structure, can be fine hinder the aqueous vapor, two wind channels can blow away the aqueous vapor again when guaranteeing ventilation performance, very big improvement the life of fan.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the fan comprises a fan outer shell 1, a fixed shell 2, a rear cover 3, an inner shell 4, a rotating shaft 5, fan blades 7 and a stator iron core 8, wherein the inner shell 4 is arranged in the fan outer shell 1, the fixed shell 2 is connected with the fan outer shell 1, the rear cover 3 is connected with the fixed shell 2, the fixed shell 2 is provided with the inner shell 2-4 and the outer shell 2-5, the fan blades 7 are arranged in the inner shell 4, the fan blades 7 are connected with the rotating shaft 5, the stator iron core 8 is arranged in the fixed shell 2, the rotating shaft 5 penetrates through the stator iron core 8, the fan outer shell 1 is provided with a first air inlet 1-1 and a drainage groove 1-2, the fixed shell 2 is provided with a ventilation opening 2-1 and a flow guide surface 2-3, the ventilation opening 2-1 is arranged on the side wall of the outer shell 2-5 and is communicated with the inner shell 2-4, the flow guide surface 2-3 is arranged at the lower part of the fixed shell 2, the rear cover 3 is provided with a second air inlet 3-1, the fixed shell 2 is provided with a fixed impeller 12, the fixed impeller 2 is provided with a plurality of air ducts 2-2, the fixed impeller 2-2 is arranged in the fixed shell 2, and the fixed impeller 2-2 is communicated with the outer shell 2.

The rotating shaft 5 is provided with a magnetic ring 9, a first bearing 10 and a second bearing 11, the magnetic ring 9 is arranged corresponding to the stator core 8, and the first bearing 10 and the second bearing 11 are respectively arranged at the front end and the rear end of the rotating shaft 5.

The rotating shaft 5 is also provided with a shaft sleeve 14, and the shaft sleeve 14 is fixed on the fan blade 7 and connected with the rotating shaft 5.

The bottom of the fixed shell 2 is provided with an O-shaped sealing ring 6, and the fixed shell 2 is hermetically connected with the rear cover 3 through the O-shaped sealing ring 6.

The inner shell 4 is provided with EVA cotton 13, and the EVA cotton 13 is connected with the fan blade 7.

The bottom of the fixed shell 2 is also provided with a driver 15.

The rear cover 3 is provided with a power line 16 and a signal line 17, and the power line 16 and the signal line 17 are electrically connected with the driver 15.

The fan blade 7 is provided with an upper cover 7-1 and a lower cover 7-2, and the outer diameter of the upper cover 7-1 is larger than that of the lower cover 7-2.

The fixed shell 2 is a zinc alloy fixed shell.

After the technical scheme is adopted, the utility model discloses beneficial effect does: inside can not directly get into the motor with the rivers drainage through the shell that sets up drainage type, motor inner bearing work area has set up multiple labyrinth structure, can be fine hinder the aqueous vapor, two wind channels can blow away the aqueous vapor again when guaranteeing ventilation performance, very big improvement the life of fan.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic diagram of the explosion structure of the present invention;

fig. 4 is a schematic structural view of the fixing case 2 of the present invention;

fig. 5 is a schematic structural view of the fan blade 7 in the present invention;

fig. 6 is a schematic structural view of the rear cover 3 of the present invention;

fig. 7 is a schematic structural diagram of the fan housing 1 according to the present invention;

fig. 8 is a schematic diagram of the operation of the actuator 15 according to the present invention.

Description of reference numerals: the fan comprises a fan outer shell 1, a fixed shell 2, a rear cover 3, an inner shell 4, a rotating shaft 5, an O-shaped sealing ring 6, a fan blade 7, a stator core 8, a magnetic ring 9, a first bearing 10, a second bearing 11, a fixed impeller 12, EVA cotton 13, a shaft sleeve 14, a driver 15, a power line 16, a signal line 17, a first air inlet 1-1, a drainage groove 1-2, a ventilation opening 2-1, a partition strip 2-2, a flow guide surface 2-3, an inner shell 2-4, an outer shell 2-5, a second air inlet 3-1, an upper cover 7-1 and a lower cover 7-2.

Detailed Description

Referring to fig. 1 to 8, the technical solution adopted by the present embodiment is: the fan comprises a fan outer shell 1, a fixed shell 2, a rear cover 3, an inner shell 4, a rotating shaft 5, a fan blade 7 and a stator iron core 8, wherein the inner shell 4 is arranged in the fan outer shell 1, the fixed shell 2 is connected with the fan outer shell 1, the rear cover 3 is connected with the fixed shell 2, the fixed shell 2 is provided with an inner shell 2-4 and an outer shell 2-5, the fan blade 7 is arranged in the inner shell 4, the fan blade 7 is connected with the rotating shaft 5, the stator iron core 8 is arranged in the fixed shell 2, the rotating shaft 5 penetrates through the stator iron core 8, the fan outer shell 1 is provided with a first air inlet 1-1 and a drainage groove 1-2, the fixed shell 2 is provided with a vent 2-1 and a flow guide surface 2-3, the vent 2-1 is arranged on the outer shell 2-5 side wall and is communicated with the inner shell 2-4, the flow guide surface 2-3 is arranged at the lower part of the fixed shell 2, the rear cover 3 is provided with a second air inlet 3-1, the fixed shell 2 is provided with a fixed impeller 12, the fixed shell 2 is provided with a fixed impeller 2-2, the fixed shell 2 is internally provided with a plurality of air duct 2-2, the fixed impeller 2-2 is communicated with an O-2, and a plurality of sealing rings 6 type sealing rings are arranged at the bottoms of the fixed shell 2. When the fan works in a wet environment, water vapor in air is firstly attached to a fan shell 1 and a fixed shell 2, water flow formed by gathering the water vapor is discharged along with a drainage groove 1-2 and a flow guide surface 2-3, an O-shaped sealing ring 6 is arranged at the bottom of the fixed shell 2, the fixed shell 2 is in sealing connection with a rear cover 3 through the O-shaped sealing ring 6, the water vapor can be prevented from entering the fan from the joint of the fixed shell 2 and the rear cover 3, when the motor works, a fan blade 7 rotates to generate negative pressure, the air is sucked from a first air inlet 1-1, moves forwards along a blade of a fixed impeller 12 and is discharged from an air channel formed by the blade of the fixed impeller 12 and a partition strip 2-2, the sucked water vapor is also discharged together, a ventilation opening 2-1 is arranged on the fixed shell 2, a second air inlet 3-1 is arranged on the rear cover 3, the second air inlet 3-1 is an auxiliary air inlet, air enters from the position and then is sucked from the tail part of the motor, when the air flow passes through the motor, the air flow carries heat generated by the work of the motor, enters the upper part of the inner shell 2-4 through the air vent 2-1 and is discharged from an air channel formed by the blades of the fixed impeller 12 and the partition strips 2-2, the two air inlets share one air outlet channel to form a labyrinth structure, so that the retention of water vapor is prevented, the iron loss of the stator iron core 8 caused by heating is reduced, the temperature of a bearing during high-speed operation is reduced, the efficiency of the motor is improved, the air in the fan continuously circulates, and the heat generated by the motor also enters the labyrinth structure, so that a good auxiliary effect on the evaporation and the blowing-off of the water vapor is achieved.

Furthermore, a magnetic ring 9, a first bearing 10 and a second bearing 11 are arranged on the rotating shaft 5, the magnetic ring 9 is arranged corresponding to the stator core 8, the first bearing 10 and the second bearing 11 are respectively arranged at the front end and the rear end of the rotating shaft 5, a shaft sleeve 14 is further arranged on the rotating shaft 5, and the shaft sleeve 14 is fixed on the fan blade 7 and connected with the rotating shaft 5.

Furthermore, EVA cotton 13 is arranged on the inner shell 4, and the EVA cotton 13 is connected with the fan blade 7. The EVA cotton can play a good moisture-proof role.

Further, the bottom of the fixed shell 2 is also provided with a driver 15. The driver 15 is arranged between the rear cover 3 and the fixed shell 2, and has a blocking effect on the entry of water vapor, so that a heavy labyrinth structure is formed.

Furthermore, a power line 16 and a signal line 17 are arranged on the rear cover 3, and the power line 16 and the signal line 17 are electrically connected with the driver 15.

Furthermore, an upper cover 7-1 and a lower cover 7-2 are arranged on the fan blade 7, and the outer diameter of the upper cover 7-1 is larger than that of the lower cover 7-2. The outer diameter of the upper cover 7-1 is larger than that of the lower cover 7-2, so that larger wind pressure can be generated, and the fan blade 7 is of a multi-blade wind pressing structure, so that the wind suction effect is better.

Further, the fixed shell 2 is a zinc alloy fixed shell. The fixed shell of the zinc alloy has better heat dissipation performance.

The utility model discloses a theory of operation: when the fan works in a wet environment, water vapor in the air is firstly attached to a fan shell 1 and a fixed shell 2, the water flow formed by the water vapor is discharged along with a drainage groove 1-2 and a flow guide surface 2-3, an O-shaped sealing ring 6 is arranged at the bottom of the fixed shell 2, the fixed shell 2 is in sealing connection with a rear cover 3 through the O-shaped sealing ring 6, the water vapor can be prevented from entering the fan from the joint of the fixed shell 2 and the rear cover 3, when the motor works, a fan blade 7 rotates to generate negative pressure, the air is sucked from a first air inlet 1-1, moves forwards along a blade of a fixed impeller 12 and is discharged from an air channel formed by the blade of the fixed impeller 12 and a partition strip 2-2, the sucked water vapor is also discharged together, a vent 2-1 is arranged on the fixed shell 2, a second air inlet 3-1 is arranged on the rear cover 3, and the second air inlet 3-1 is an auxiliary air inlet, air is sucked from the tail part of the motor after entering the motor, the air flow carries heat generated by the work of the motor when passing through the motor, enters the upper part of the inner shell 2-4 through the ventilation opening 2-1, is discharged from an air channel formed by the blades of the fixed impeller 12 and the partition strips 2-2, the two air inlets share one air outlet channel to form a labyrinth structure, the retention of water vapor is hindered, the iron loss caused by the heat generation of the stator core 8 is reduced, the temperature of the bearing when the bearing operates at a high speed is reduced, the motor efficiency is improved, the temperature of a heating element on the driver 15 is also reduced, the air in the fan continuously circulates, the heat generated by the motor also enters the labyrinth structure, and a good auxiliary effect on the evaporation and the blowing-off of the water vapor is achieved.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a dry and wet high-speed brushless motor that induced drafts which characterized in that: the fan comprises a fan outer shell (1), a fixed shell (2), a rear cover (3), an inner shell (4), a rotating shaft (5), fan blades (7) and a stator core (8), wherein the inner shell (4) is arranged in the fan outer shell (1), the fixed shell (2) is connected with the fan outer shell (1), the rear cover (3) is connected with the fixed shell (2), an inner shell (2-4) and an outer shell (2-5) are arranged on the fixed shell (2), the fan blades (7) are arranged in the inner shell (4), the fan blades (7) are connected with the rotating shaft (5), the stator core (8) is arranged in the fixed shell (2), the rotating shaft (5) penetrates through the stator core (8), a first air inlet (1-1) and a drainage groove (1-2) are arranged on the fan outer shell (1), a vent (2-1) and a flow guide surface (2-3) are arranged on the fixed shell (2), the vent (2-1) is arranged on the side wall of the outer shell (2-5) and is communicated with the inner shell (2-4), the flow guide surface (2-3) is arranged on the lower portion of the fixed shell (2), and a second air inlet (12) is arranged on the fixed shell (3), partition strips (2-2) are arranged in the fixed shell (2), the partition strips (2-2) are arranged between the inner shell (2-4) and the outer shell (2-5), and the blades of the fixed impeller (12) and the partition strips (2-2) form a plurality of air channels communicated with the outside.

2. The dry and wet aspiration high speed brushless electric machine of claim 1, wherein: the rotating shaft (5) is provided with a magnetic ring (9), a first bearing (10) and a second bearing (11), the magnetic ring (9) is arranged corresponding to the stator core (8), and the first bearing (10) and the second bearing (11) are respectively arranged at the front end and the rear end of the rotating shaft (5).

3. The dry and wet aspiration high speed brushless electric machine of claim 1, wherein: the fan blade is characterized in that the rotating shaft (5) is also provided with a shaft sleeve (14), and the shaft sleeve (14) is fixed on the fan blade (7) and connected with the rotating shaft (5).

4. The dry and wet induced draft high speed brushless electric machine of claim 1, further comprising: the bottom of the fixed shell (2) is provided with an O-shaped sealing ring (6), and the fixed shell (2) is connected with the rear cover (3) in a sealing mode through the O-shaped sealing ring (6).

5. The dry and wet aspiration high speed brushless electric machine of claim 1, wherein: the inner shell (4) is provided with EVA cotton (13), and the EVA cotton (13) is connected with the fan blades (7).

6. The dry and wet induced draft high speed brushless electric machine of claim 1, further comprising: the bottom of the fixed shell (2) is also provided with a driver (15).

7. The dry and wet induced draft high speed brushless electric machine of claim 1, further comprising: the rear cover (3) is provided with a power line (16) and a signal line (17), and the power line (16) and the signal line (17) are electrically connected with the driver (15).

8. The dry and wet aspiration high speed brushless electric machine of claim 1, wherein: the fan blade (7) is provided with an upper cover (7-1) and a lower cover (7-2), and the outer diameter of the upper cover (7-1) is larger than that of the lower cover (7-2).

9. The dry and wet induced draft high speed brushless electric machine of claim 1, further comprising: the fixed shell (2) is a zinc alloy fixed shell.