CN215646476U

CN215646476U - Ventilation structure of motor

Info

Publication number: CN215646476U
Application number: CN202122150436.7U
Authority: CN
Inventors: 杨品; 章燏; 杜荣法; 陈祥宝
Original assignee: Wolong Electric Group Co Ltd
Current assignee: Qingdao Wolong Electromechanical Integration Technology Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-01-25
Anticipated expiration: 2031-09-07

Abstract

The application discloses ventilation structure of motor relates to motor technical field, including fore-stock subassembly and the back-up subassembly that matches each other, the preceding lateral wall and the periphery lateral wall of fore-stock subassembly all are provided with a plurality of perforation, the back-up subassembly orientation one side of fore-stock subassembly is provided with the water conservancy diversion inner chamber, the water conservancy diversion inner chamber with the intercommunication of perforating, the rear side of back-up subassembly is provided with the support grid frame, the rear side that supports the grid frame is provided with the cooling fan blade, the front side of fore-stock subassembly is provided with hub connection portion, the axis of hub connection portion with the axis coincidence of cooling fan blade. This application is through installing the cooling fan blade in the one side that the fore-stock subassembly was kept away from to the support grid frame, improves the air-out efficiency of cooling fan blade to in the parcel effect that combines the fan blade ring body, reduce the load of cooling fan blade, reduce the wind wearing and tearing of motor, thereby when promoting the ventilation cooling effect of motor, have the effect that improves the efficiency of motor.

Description

Ventilation structure of motor

Technical Field

The application relates to the technical field of motors, in particular to a ventilation structure of a motor.

Background

Along with the development of economy, the improvement of the living standard of people, the scientific and technological development of China is more and more rapid, and the dust collector is widely used by people due to the advantages of time saving, labor saving, low noise and the like, so the quality of the motor in the dust collector is very important, and in order to ensure that the service efficiency of the dust collector is higher, a special dust collector motor is used.

The chinese patent with publication number CN213585364U discloses a dust collector motor with good heat dissipation effect, which comprises a mounting seat, a motor body and a protective shell, wherein the mounting seat is fixed on the outer side wall of the bottom end of the motor body, the protective shell is fixed on the top end of the mounting seat, a buffer structure is arranged between the motor body and the protective shell, heat dissipation holes are arranged on one side of the fan, and uniformly penetrate through the protective shell, and a noise reduction structure is arranged inside the motor body.

But this dust catcher motor that radiating effect is good only dispels the heat through the heat dissipation mechanism on the motor main part lateral wall, and this heat dissipation mechanism carries out the heat conduction by the heat conduction piece, causes the inside heat accumulation because of gas flow efficiency is poor of motor main part, seriously influences the result of use and the life of this dust catcher motor, awaits improving.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present application is to provide a ventilation structure of a motor, so as to achieve the purpose of improving a heat dissipation effect. The specific scheme is as follows:

the utility model provides a ventilation structure of motor, is including fore-stock subassembly and the back-up subassembly that matches each other, the preceding lateral wall and the periphery lateral wall of fore-stock subassembly all are provided with a plurality of perforation, the back-up subassembly orientation one side of fore-stock subassembly is provided with the water conservancy diversion inner chamber, the water conservancy diversion inner chamber with the intercommunication of perforating, the rear side of back-up subassembly is provided with the support grid frame, the rear side that supports the grid frame is provided with the cooling fan blade, the front side of fore-stock subassembly is provided with axle connecting portion, the axis of axle connecting portion with the axis coincidence of cooling fan blade.

Preferably: the both ends of back carriage subassembly front side mutual symmetry all are provided with back fixed part, the both ends of preceding carriage subassembly rear side mutual symmetry all are provided with preceding fixed part, two preceding fixed part respectively with corresponding back fixed part matches to threaded connection has connecting bolt.

Preferably: the through holes comprise a plurality of front side wall holes and a plurality of front side bottom holes, the front side wall holes are symmetrically distributed on two side walls of the front support assembly, and the front side bottom holes are distributed on the front side wall of the front support assembly in an array mode.

Preferably: the front support assembly is square, the front side wall hole is located on the symmetrical left and right side walls or the symmetrical upper and lower side walls of the two sides of the front support assembly, the front fixing portion is located on the symmetrical upper and lower side walls or the symmetrical left and right side walls of the other two sides of the front support assembly, two carbon brush inserting grooves which are symmetrically distributed are arranged on the front support assembly, and the two carbon brush inserting grooves are respectively matched with the corresponding positions of the front fixing portion.

Preferably: and two carbon brush ventilation bottom holes which are respectively matched with the corresponding carbon brush insertion grooves are formed in the front side of the front support assembly.

Preferably: four corners of the front support component are provided with chamfers, and the chamfers are provided with inclined side wall holes.

Preferably: four carbon brush side holes are formed in the peripheral side wall of the front support assembly, and every two carbon brush side holes are symmetrically distributed at two ends of the corresponding carbon brush inserting groove.

Preferably: the rear side of the rear support component is provided with a fan blade ring body, and the cooling fan blade is positioned in the fan blade ring body; and one side of the flow guide inner cavity, which is close to the fan blade ring body, is provided with an inclined flow guide wall.

According to the scheme, the ventilation structure of the motor is provided, and the ventilation structure of the motor has the following beneficial effects:

1. the cooling fan blade is arranged on one side of the support grid frame, which is far away from the front support assembly, so that the air outlet efficiency of the cooling fan blade is improved, the load of the cooling fan blade is reduced by combining the wrapping effect of the fan blade ring body, and the wind abrasion of the motor is reduced, so that the ventilation and heat dissipation effects of the motor are improved, and the efficiency of the motor is improved;

2. the side holes of the carbon brush edge, the inclined side wall holes and the ventilation bottom holes of the carbon brush are arranged on the periphery of the carbon brush inserting groove, so that when the cooling fan blade works, airflow is driven to pass through the carbon brush assembly of the motor, heat generated between the carbon brush assembly and the rotor is taken away, and the purpose of improving the heat dissipation effect is achieved;

3. the inclined flow guide wall guides air to flow, and air flows enter the flow guide inner cavity by matching with the front side bottom hole and the front side wall hole, so that the air flows orderly from the front support assembly to the rear support assembly to be discharged through the support grid frame after absorbing heat in the motor.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a ventilation structure of the motor disclosed in the present application.

Description of reference numerals: 1. a front carrier assembly; 11. a shaft connecting portion; 12. a front fixing portion; 13. carbon brush inserting grooves; 131. side holes on the side of the carbon brush; 132. a sloped sidewall hole; 133. a carbon brush ventilation bottom hole; 14. a front sidewall aperture; 15. a front side bottom hole; 2. a rear bracket assembly; 21. a flow guide inner cavity; 211. the inclined flow guide wall; 22. a fan blade ring body; 23. a rear fixing part; 24. supporting a grid frame; 3. cooling the fan blades; 4. and connecting the bolts.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in fig. 1, a ventilation structure of a motor includes a front bracket assembly 1 and a rear bracket assembly 2 which are matched with each other. The front side wall and the peripheral side wall of the front bracket component 1 are both provided with a plurality of through holes, and one side of the rear bracket component 2 facing the front bracket component 1 is provided with a flow guide inner cavity 21. The flow guide inner cavity 21 is communicated with the perforation to achieve the effect that the airflow enters the flow guide inner cavity 21 from the front side of the front bracket component 1 through the perforation. It should be mentioned that a support grid 24 is provided at the rear side of the rear bracket assembly 2. The rear side of the supporting grid frame 24 is provided with a cooling fan blade 3, and the cooling fan blade 3 guides the airflow in the flow guide inner cavity 21 out of the rear side of the rear support assembly 2 in the rotating operation.

Wherein, the front side of the front bracket component 1 is provided with a shaft connecting part 11, and the axis of the shaft connecting part 11 is superposed with the axis of the cooling fan blade 3. The stator, the rotor subassembly installation is fixed between preceding bracket component 1 and rear bracket component 2, and the both ends of rotor are connected with hub connection portion 11 and cooling fan blade 3 respectively, in order to drive the rotation of cooling fan blade 3 through the rotor subassembly, and then make the air current get into water conservancy diversion inner chamber 21 through the perforation in the front side of preceding bracket component 1, derive in following this motor through supporting grid frame 24 after fully contacting with stator and rotor subassembly and heat exchange, so that the ventilation structure of this motor realizes showing the purpose that promotes the radiating effect.

As shown in fig. 1, rear fixing portions 23 are provided at both ends of the rear bracket assembly 2, which are symmetrical to each other. And front fixing parts 12 are provided at both ends of the rear side of the front bracket assembly 1 which are symmetrical to each other. The two front fixing portions 12 are respectively matched with the corresponding rear fixing portions 23, and are threadedly connected with the connecting bolts 4. Therefore, when the motor is installed and fixed, two ends of the stator and the rotor assembly are respectively inserted into one side of the front support assembly 1 and one side of the rear support assembly 2 which are opposite to each other, and then the front support assembly 1, the stator and the rotor assembly and the rear support assembly 2 can be fixedly connected through the connecting bolts 4, so that the purposes of driving air to flow to form airflow and taking away heat inside the motor are achieved when the stator and the rotor assembly drive the cooling fan blades 3 to operate.

It should be noted that the through-holes include a plurality of front side wall holes 14 and a plurality of front side bottom holes 15. A plurality of front side wall holes 14 are symmetrically distributed on two side walls of the front bracket component 1, and a plurality of front side bottom holes 15 are distributed on the front side wall of the front bracket component 1 in an array mode. Meanwhile, the front frame assembly 1 has a square shape. The front sidewall holes 14 are located on the left and right or upper and lower sidewalls of the front bracket assembly 1, and the front fixing portions 12 are located on the upper and lower or left and right sidewalls of the front bracket assembly 1, so as to achieve the purpose of orderly distributing the front sidewall holes 14 and the front fixing portions 12.

As shown in fig. 1, two symmetrically distributed carbon brush insertion grooves 13 are provided on the front bracket assembly 1. The carbon brush inserting grooves 13 are used for installing and fixing the carbon brush assembly, and the two carbon brush inserting grooves 13 are respectively matched with the corresponding front fixing portions 12. In order to further improve the ventilation and heat dissipation performance of the ventilation structure of the motor, two carbon brush ventilation bottom holes 133 respectively matched with the corresponding carbon brush insertion grooves 13 are arranged on the front side of the front support assembly 1. The carbon brush ventilation bottom hole 133 is used for allowing the connecting bolt 4 to pass through and realizing the installation and fixation of the front support assembly 1 and the rear support assembly 2, and four corners of the front support assembly 1 are provided with chamfers. A sloped sidewall hole 132 is provided on the chamfer. Meanwhile, four carbon brush side holes 131 are arranged on the peripheral side wall of the front bracket assembly 1, and every two carbon brush side holes 131 are symmetrically distributed at two ends of the corresponding carbon brush insertion groove 13, so that when the cooling fan blade 3 rotates to work, airflow is driven to fully contact with the carbon brush assembly through the carbon brush side holes 131, the inclined side wall holes 132 and the carbon brush ventilation bottom holes 133 and carry out heat exchange, and therefore the ventilation and heat dissipation performance of the ventilation structure of the motor is remarkably improved.

It should be mentioned that a fan blade ring 22 is arranged on the rear side of the rear bracket assembly 2. The cooling fan blade 3 is positioned in the fan blade ring body 22. An inclined flow guide wall 211 is arranged on one side of the flow guide inner cavity 21 close to the fan blade ring body 22. The inclined guide wall 211 serves to guide the airflow towards one end of the support grid 24.

In conclusion, this application is through installing cooling fan blade 3 in the one side that the front mast assembly 1 was kept away from to support grid frame 24, improves cooling fan blade 3's air-out efficiency to in the parcel effect that combines fan blade ring body 22, reduce cooling fan blade 3's load, reduce the wind wearing and tearing of motor, thereby when promoting the ventilation cooling effect of motor, improve the efficiency of motor. Meanwhile, the carbon brush side holes 131, the inclined side wall holes 132 and the carbon brush ventilation bottom holes 133 are formed in the periphery of the carbon brush insertion groove 13, so that when the cooling fan blade 3 works, airflow is driven to pass through a carbon brush assembly of the motor, heat generated between the carbon brush assembly and a rotor is taken away, and the purpose of improving the heat dissipation effect is achieved. And in the flowing process of the air current, the air current is guided to flow through the inclined flow guide wall 211, the air current is supplied into the flow guide inner cavity 21 by matching with the front side bottom hole 15 and the front side wall hole 14, and the air current is orderly enabled to flow from the front bracket component 1 to the rear bracket component 2 and then is exhausted through the support grid frame 24 after absorbing the heat in the motor.

References in this application to "first," "second," "third," "fourth," etc., if any, are intended to distinguish between similar elements and not necessarily to describe a particular order or sequence. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, or apparatus.

It should be noted that the descriptions in this application referring to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A ventilation structure of motor which characterized in that: including fore-stock subassembly (1) and back-stock subassembly (2) that match each other, the preceding lateral wall and the periphery lateral wall of fore-stock subassembly (1) all are provided with a plurality of perforation, back-stock subassembly (2) orientation one side of fore-stock subassembly (1) is provided with water conservancy diversion inner chamber (21), water conservancy diversion inner chamber (21) with the perforation intercommunication, the rear side of back-stock subassembly (2) is provided with supports grid frame (24), the rear side that supports grid frame (24) is provided with cooling fan blade (3), the front side of fore-stock subassembly (1) is provided with axle connecting portion (11), the axis of axle connecting portion (11) with the axis coincidence of cooling fan blade (3).

2. A ventilating structure of an electric motor according to claim 1, wherein: rear fixing portion (23) all are provided with at the both ends of rear bracket subassembly (2) front side mutual symmetry, the both ends of front bracket subassembly (1) rear side mutual symmetry all are provided with preceding fixed part (12), two preceding fixed part (12) respectively with corresponding rear fixing portion (23) match to threaded connection has connecting bolt (4).

3. A ventilating structure of an electric motor according to claim 2, wherein: the perforation comprises a plurality of front side wall holes (14) and a plurality of front side bottom holes (15), the front side wall holes (14) are symmetrically distributed on two side walls of the front support assembly (1), and the front side bottom holes (15) are distributed on the front side wall of the front support assembly (1) in an array mode.

4. A ventilating structure of an electric motor according to claim 3, wherein: the front support assembly (1) is square, the front side wall holes (14) are located on the symmetrical left and right side walls or the symmetrical upper and lower side walls of the two sides of the front support assembly (1), the front fixing portions (12) are located on the symmetrical upper and lower side walls or the symmetrical left and right side walls of the other two sides of the front support assembly (1), two carbon brush inserting grooves (13) which are symmetrically distributed are arranged on the front support assembly (1), and the two carbon brush inserting grooves (13) are respectively matched with the corresponding positions of the front fixing portions (12).

5. A ventilating structure of an electric motor according to claim 4, wherein: and two carbon brush ventilation bottom holes (133) which are respectively matched with the corresponding carbon brush insertion grooves (13) are formed in the front side of the front support assembly (1).

6. A ventilating structure of an electric motor according to claim 4, wherein: four corners of the front support assembly (1) are provided with chamfers, and inclined side wall holes (132) are arranged on the chamfers.

7. A ventilating structure of an electric motor according to claim 6, wherein: four carbon brush side holes (131) are arranged on the peripheral side wall of the front support assembly (1), and every two carbon brush side holes (131) are symmetrically distributed at two ends of the corresponding carbon brush insertion groove (13).

8. A ventilating structure of an electric motor according to claim 1, wherein: the rear side of the rear support component (2) is provided with a fan blade ring body (22), and the cooling fan blade (3) is positioned in the fan blade ring body (22); an inclined flow guide wall (211) is arranged on one side, close to the fan blade ring body (22), of the flow guide inner cavity (21).