CN212627526U - Ceiling fan motor with double cooling air path structure - Google Patents
Ceiling fan motor with double cooling air path structure Download PDFInfo
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- CN212627526U CN212627526U CN202021943995.2U CN202021943995U CN212627526U CN 212627526 U CN212627526 U CN 212627526U CN 202021943995 U CN202021943995 U CN 202021943995U CN 212627526 U CN212627526 U CN 212627526U
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Abstract
A ceiling fan motor with a double-cooling air path structure relates to the technical field of ceiling fan motors, solves the technical defects of motor damage and the like of an industrial ceiling fan, and comprises a rotor assembly and a stator assembly; the rotor assembly comprises a rotor shell, a rotor body, an upper end cover and a lower end cover; the upper end cover is provided with an annular array of air inlet holes, the hub is provided with an annular array of vent holes, and the lower end cover is provided with an annular array of air outlet holes; the air inlet hole, the air vent and the air outlet hole form a main cooling air path; an upper end cover groove is arranged on the inner side surface of the upper end cover; a circular ring is arranged on the winding insulating plate; and a cooling air bypass is formed by a gap between the upper end cover groove and the circular ring, a groove path on the stator core and a gap between the hub and the lower end cover. The water drops are blocked by the circular ring and cannot enter the stator core, and dust can be blocked by the circular ring, so that the motor is effectively protected, and the motor conforms to the IP23 protection grade; the utility model discloses form two parallelly connected cooling wind path structures, improve the radiating effect of motor cooling.
Description
Technical Field
The utility model belongs to the technical field of ceiling fan motor technique and specifically relates to relate to in the aspect of industry ceiling fan motor cooling structure improves.
Background
In the design of the modern industrial ceiling fan, a direct-drive scheme that a permanent magnet torque motor directly drives fan blades of the ceiling fan is usually adopted, and the high-efficiency motor has the characteristics of high efficiency and high power density, the corresponding loss density is also high, the temperature rise of each part of the motor is high, and particularly a stator winding is adopted. Compared with the traditional motor, the permanent magnet torque motor has the advantages that the temperature rise is higher and faster in the operation process, in order to solve the problem of the heating temperature rise of the motor, a plurality of motors form an internal air path of the motor through the heat dissipation holes of the upper end cover and the lower end cover to solve the problem of the temperature rise, and the permanent magnet torque motor is generally divided into a main cooling air path and a bypass. The main path of the air path is the path of radiating from the radiating holes of the upper end cover, the through holes of the wheel hub and the radiating holes of the lower end cover, and dust and water drops carried in air convection do not damage the motor winding. However, the path of the air path bypass is an upper end cover heat dissipation hole, an end cover fan blade, a winding slot path and a lower end cover heat dissipation hole, and the air flow easily causes more dust and even water drops to enter the winding inside the motor through the path, so that the motor is damaged.
Disclosure of Invention
To sum up, the utility model discloses a solve the cooling structure of industry ceiling fan and make dust water droplet get into the inside winding of motor easily even, lead to the motor to damage etc. technique not enough, and provide a from ceiling fan motor of taking two cooling wind path structures.
For solving the technical problem of the utility model, the technical scheme of adoption is:
a ceiling fan motor with a double cooling air path structure comprises a rotor assembly and a stator assembly; the rotor assembly comprises a rotor shell, a rotor body fixed in the rotor shell, an upper end cover arranged at the upper end of the rotor shell and a lower end cover arranged at the lower end of the rotor shell; the stator assembly comprises a stator shaft, a hub, a stator core, a winding insulation plate and a winding; the stator shaft is respectively and rotatably connected with the upper end cover and the lower end cover through bearings, the stator core is arranged in the rotor shell and fixedly connected with the stator shaft through a hub, the winding insulation plate is arranged on the stator core, and the winding is arranged on the winding insulation plate; a plurality of windings on the stator core are provided with slot circuits which are communicated up and down; the upper end cover is provided with a plurality of air inlet holes in an annular array, the hub is provided with a plurality of air vent holes corresponding to the air inlet holes in the annular array, and the lower end cover is provided with a plurality of air outlet holes corresponding to the air vent holes in the annular array; the air inlet hole, the air vent and the air outlet hole form a cooling air main path; an annular upper end cover groove is formed in the inner side face of the upper end cover at the position corresponding to the junction position of the hub and the stator core; a circle of circular ring which protrudes upwards into the groove of the upper end cover is arranged on the winding insulating plate, and a cooling air bypass is formed by a gap between the groove of the upper end cover and the circular ring, a slot circuit between a plurality of windings on the stator core and a gap between the hub and the lower end cover; and a bypass air inlet and a bypass air outlet of the cooling air bypass are respectively communicated with the cooling air main path.
As to the technical scheme of the utility model for further limiting includes:
the top of upper end cover be equipped with more than two and be used for the radial flabellum of one-level to the fresh air inlet wind-guiding.
The distance from the center of the air inlet hole to the center of the upper end cover is equal to the distance from the center of the first-stage radial fan blade to the center of the upper end cover.
The first-stage radial fan blades are radially and uniformly distributed on the upper end cover.
The upper end cover is also provided with a second-stage radial fan blade, and the distance from the center of the first-stage radial fan blade to the center of the upper end cover is smaller than the distance from the center of the second-stage radial fan blade to the center of the upper end cover; and the cooling air bypass air inlet is arranged between the first-stage radial fan blade and the second-stage radial fan blade.
The second-stage radial fan blades are radially and uniformly distributed on the upper end cover.
The utility model has the advantages that: the utility model discloses two-stage series excitation bypass cooling wind path with IP23 protection is guaranteeing under the not influenced condition of the inside bypass wind path of motor, realizes IP23 protection, and cooling wind path simple structure produces low in manufacturing cost moreover, and the cooling effect is good, can effectively reduce the motor temperature rise, has improved motor operating efficiency.
Drawings
FIG. 1 is a schematic view of the structure principle of the present invention;
FIG. 2 is an enlarged schematic view of the cooling air bypass according to the present invention;
FIG. 3 is a schematic view of the three-dimensional structure of the upper end cap of the present invention;
FIG. 4 is a schematic view of the present invention;
fig. 5 is a schematic view of the inherent wind field in the use process of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, a detailed description of the present application will be given below with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present application, and the described embodiments are merely a subset of the embodiments of the present application, rather than all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the description of the upper, lower, left, right, etc. used in the present invention is only relative to the mutual positional relationship of the components of the present invention in the drawings. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The structure of the present invention will be further described with reference to fig. 1 to 5 and preferred embodiments of the present invention.
The utility model discloses a from ceiling fan motor of taking two cooling wind path structures, including rotor subassembly 1 and stator module 2 two parts.
The rotor assembly 1 includes a rotor housing 11, a rotor body 12 fixed in the rotor housing 11, an upper end cover 13 disposed at an upper end of the rotor housing 11, and a lower end cover 14 disposed at a lower end of the rotor housing.
The stator assembly 2 comprises a stator shaft 21, a hub 22, a stator core 23, a winding insulation plate 24 and a winding; the stator shaft 21 is respectively connected with the upper end cover 13 and the lower end cover 14 in a rotating way through two bearings 211; the stator core 23 is arranged in the rotor shell 11 and is in electromagnetic driving fit with the rotor body 12; the stator core 23 is fixedly connected with the stator shaft 21 through the hub 22; the winding insulation plate 24 is arranged on the stator core 23, and the winding is arranged on the winding insulation plate 24; a plurality of windings on the stator core 23 are provided with slot circuits communicated up and down.
Compared with the prior art, the utility model mainly lies in that the annular array on the upper end cover 13 is provided with a plurality of air inlet holes 131, the annular array on the hub 22 is provided with a plurality of air vent holes 221 corresponding to the air inlet holes 131, and the annular array on the lower end cover 14 is provided with a plurality of air outlet holes 141 corresponding to the air vent holes 221; the air inlet 131, the vent 221 and the air outlet 141 form a main cooling air path. Because the requirement of the hub 22 on dust prevention and water prevention is low, in the running process of the motor, after entering from the air inlet 131, the outside air flows through the air vent 221 on the hub 22, so that the hub 22 is cooled, and the hub 22 indirectly exchanges heat with the stator core 23 to absorb the heat of the stator core 23.
In order to realize direct air cooling of the stator core 23 and ensure that the stator core 23 meets the protection level requirement of IP23, an annular upper end cover groove 132 is formed in the inner side surface of the upper end cover 13 at the position corresponding to the junction position of the hub 22 and the stator core 23; a circle of circular rings 241 protruding upwards into the upper end cover groove 132 are arranged on the winding insulating plate 24; the gap between the upper end cover groove 132 and the circular ring 241, the slot circuit between a plurality of windings on the stator core 23 and the gap between the hub and the lower end cover 14 of the stator 22 form a cooling air bypass; the bypass air inlet and the bypass air outlet of the cooling air bypass are respectively communicated with the cooling air main path, and part of the cold air entering from the air inlet hole 131 enters the cooling air bypass under the action of centrifugal force, so that the stator core 23 is directly cooled by air.
The motor IP23 protection grade is that solid foreign matters with the diameter larger than 12mm can be prevented from entering the shell, and fingers can be prevented from touching the electrified or moving part in the shell; at an angle of 15 to the verticaloThe dripping water in the angular range cannot directly enter the motor. As shown in fig. 2, in the present invention, due to the existence of the ring 241 protruding upwards, part of the cold air entering from the air inlet 131 needs to rise along the ring 241, cross the ring 241 from the gap between the top of the ring 241 and the bottom of the upper end cover groove 132, and then reach the slot path between the windings on the stator core 23 downwards, so as to cool the stator core 23, and the hot air after air cooling heat exchange transversely enters the main cooling air path and is discharged from the air outlet 141; water dripped from the air inlet 131 is blocked by the circular ring 241 and cannot enter the stator core 23, dust carried in cold air can be effectively blocked by the circular ring 241 and cannot enter a groove path on the stator core 23, and the motor is effectively protected, so that the motor of the utility model meets the protection level of IP 23; by providing a cooling air bypass withThe cooling air main path forms two parallel cooling air path structures, and the cooling and heat dissipation effects of the motor are further improved.
In order to make the external cold air better enter from the air inlet holes 131 and form a strong air flow, as shown in fig. 3, the top of the upper end cover 13 is provided with more than two first-stage radial fan blades 134 for guiding air towards the air inlet holes 131. The distance from the center of the air inlet hole 131 to the center of the upper end cover 13 is equal to the distance from the center of the first-stage radial fan blade 134 to the center of the upper end cover. That is, the air inlet 131 and the first-stage radial fan blades 134 are located in the same diameter annular area of the upper end cover 13 and are uniformly distributed; the utility model discloses the motor is at the pivoted in-process, and the radial flabellum 134 of one-level can realize stirring the cold air of input in the fresh air inlet 131, increases the air current intensity of cooling air main road and cooling air bypass for the cold air is in the utility model discloses inside flow velocity realizes accelerating the cooling heat dissipation effect of cooling wind path.
In a specific implementation process, a plurality of secondary radial fan blades 135 can be further arranged on the upper end cover according to needs, and the distance from the center of the primary radial fan blade 134 to the center of the upper end cover 13 is smaller than the distance from the center of the secondary radial fan blade 135 to the center of the upper end cover 134; the cooling air bypass inlet 136 may be separately disposed between the first-stage radial fan blade 134 and the second-stage radial fan blade 135. The second-stage radial fan blades are radially and uniformly distributed on the upper end cover.
While the preferred embodiments of the present invention have been described in detail, it should be understood that modifications and variations can be made by persons skilled in the art without inventive faculty, and in light of the above teachings. Therefore, the technical solutions according to the present invention, which can be obtained by logical analysis, reasoning or limited experiments based on the prior art, should be within the scope of protection defined by the claims.
Claims (6)
1. A ceiling fan motor with a double cooling air path structure comprises a rotor assembly and a stator assembly;
the rotor assembly comprises a rotor shell, a rotor body fixed in the rotor shell, an upper end cover arranged at the upper end of the rotor shell and a lower end cover arranged at the lower end of the rotor shell;
the stator assembly comprises a stator shaft, a hub, a stator core, a winding insulation plate and a winding; the stator shaft is respectively and rotatably connected with the upper end cover and the lower end cover through bearings, the stator core is arranged in the rotor shell and fixedly connected with the stator shaft through a hub, the winding insulation plate is arranged on the stator core, and the winding is arranged on the winding insulation plate; a plurality of windings on the stator core are provided with slot circuits which are communicated up and down;
the method is characterized in that:
the upper end cover is provided with a plurality of air inlet holes in an annular array, the hub is provided with a plurality of air vent holes corresponding to the air inlet holes in the annular array, and the lower end cover is provided with a plurality of air outlet holes corresponding to the air vent holes in the annular array; the air inlet hole, the air vent and the air outlet hole form a cooling air main path;
an annular upper end cover groove is formed in the inner side face of the upper end cover at the position corresponding to the junction position of the hub and the stator core; a circle of circular ring which protrudes upwards into the groove of the upper end cover is arranged on the winding insulating plate, and a cooling air bypass is formed by a gap between the groove of the upper end cover and the circular ring, a slot circuit between a plurality of windings on the stator core and a gap between the hub and the lower end cover; and a bypass air inlet and a bypass air outlet of the cooling air bypass are respectively communicated with the cooling air main path.
2. The ceiling fan motor with dual cooling air path structure as claimed in claim 1, wherein: the top of upper end cover be equipped with more than two and be used for the radial flabellum of one-level to the fresh air inlet wind-guiding.
3. The ceiling fan motor with dual cooling air path structure as claimed in claim 2, wherein: the distance from the center of the air inlet hole to the center of the upper end cover is equal to the distance from the center of the first-stage radial fan blade to the center of the upper end cover.
4. The ceiling fan motor with dual cooling air path structure as claimed in claim 2, wherein: the first-stage radial fan blades are radially and uniformly distributed on the upper end cover.
5. The ceiling fan motor with dual cooling air path structure as claimed in claim 2, wherein: the upper end cover is also provided with a second-stage radial fan blade, and the distance from the center of the first-stage radial fan blade to the center of the upper end cover is smaller than the distance from the center of the second-stage radial fan blade to the center of the upper end cover; and the cooling air bypass air inlet is arranged between the first-stage radial fan blade and the second-stage radial fan blade.
6. The ceiling fan motor with dual cooling air path structure as claimed in claim 5, wherein: the second-stage radial fan blades are radially and uniformly distributed on the upper end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021943995.2U CN212627526U (en) | 2020-09-08 | 2020-09-08 | Ceiling fan motor with double cooling air path structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021943995.2U CN212627526U (en) | 2020-09-08 | 2020-09-08 | Ceiling fan motor with double cooling air path structure |
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| Publication Number | Publication Date |
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| CN212627526U true CN212627526U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021943995.2U Active CN212627526U (en) | 2020-09-08 | 2020-09-08 | Ceiling fan motor with double cooling air path structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917243A (en) * | 2020-09-08 | 2020-11-10 | 广东肇庆德通有限公司 | Ceiling fan motor with double cooling air path structure |
| CN114513103A (en) * | 2022-02-28 | 2022-05-17 | 沈阳工业大学 | Brushless permanent magnet torque motor for pumping unit and speed time-varying control method |
-
2020
- 2020-09-08 CN CN202021943995.2U patent/CN212627526U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917243A (en) * | 2020-09-08 | 2020-11-10 | 广东肇庆德通有限公司 | Ceiling fan motor with double cooling air path structure |
| CN114513103A (en) * | 2022-02-28 | 2022-05-17 | 沈阳工业大学 | Brushless permanent magnet torque motor for pumping unit and speed time-varying control method |
| CN114513103B (en) * | 2022-02-28 | 2023-09-15 | 沈阳工业大学 | Brushless permanent magnet torque motor for pumping unit and speed time-varying control method |
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