CN210927364U

CN210927364U - Brushless DC motor capable of resisting electromagnetic interference

Info

Publication number: CN210927364U
Application number: CN201921881794.1U
Authority: CN
Inventors: 黄炳锋; 任映平
Original assignee: Shenzhen Zhongping Electromechanical Co ltd
Current assignee: Shenzhen Zhongping Electromechanical Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-07-03
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a belong to brushless DC motor technical field, specifically be a brushless DC motor that can anti-electromagnetic interference, it includes: sixteen fixing holes, and two have been seted up respectively to one side of motor casing, motor main part, cooling framework and radiating groove, two the motor casing passes through sixteen the mutual fixed connection of fixing hole, two equal fixed mounting has the shielding layer in the motor casing, two fixed mounting in the motor casing motor main part, motor main part's one end fixed mounting has the wave filter, motor main part is terminal motor casing one side fixed mounting the cooling framework, fixed mounting has pressure water pump in the cooling framework. This ability anti-electromagnetic interference's brushless DC motor not only can shield the electromagnetic interference of motor, makes the motor can not receive external disturbance's operation, improves job stabilization nature, has fine cooling effect moreover, has prolonged the life of motor.

Description

Brushless DC motor capable of resisting electromagnetic interference

Technical Field

The utility model relates to a brushless DC motor technical field specifically is a brushless DC motor of ability anti-electromagnetic interference.

Background

There are two types of conventional brushless dc motors: one is that the control panel is installed outside the motor casing, such as a common MOSFET parallel module controller, but the overall structure of the controller is relatively complex and the price is relatively high, and in addition, the control panel is installed outside the motor, and a connection circuit between the motor and the control panel needs to be added, which not only has higher cost, but also has great practical limitation; therefore, the external controller has no cost performance advantage in the civil market; the other control board is arranged in the motor shell, although the structure is simpler; however, because the motor rotates, electromagnetic interference is generated, the circuit board is easy to damage, and the interference is larger when the power is larger, so that the motor is generally only applied to a small-power motor with the power less than 100W. But current brushless DC motor all receives external electromagnetic interference easily, and job stabilization nature is not high, and the cooling effect is not good moreover, and life is not long.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems occurring in the conventional brushless dc motor.

Therefore, the utility model aims at providing a can anti-electromagnetic interference's brushless DC motor, the electromagnetic interference that not only can shield the motor makes the motor can not receive external disturbance's operation, improves job stabilization nature, has fine cooling effect moreover, has prolonged the life of motor.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a brushless dc motor capable of resisting electromagnetic interference, comprising: the cooling device comprises motor shells, a motor main body, a cooling frame body and radiating grooves, wherein sixteen fixing holes are respectively formed in one sides of the two motor shells, the two motor shells are mutually and fixedly connected through the sixteen fixing holes, a shielding layer is fixedly arranged in the two motor shells, the motor main body is fixedly arranged in the two motor shells, a filter is fixedly arranged at one end of the motor main body, the cooling frame body is fixedly arranged at one side of the motor shells at the tail end of the motor main body, a pressure water pump is fixedly arranged in the cooling frame body, cooling pipes are fixedly connected to one side and the bottom end of the pressure water pump, the cooling pipes are wound on the motor main body, a refrigerator is fixedly connected to one side of each cooling pipe, the refrigerator is fixedly connected with the motor shells, and the four radiating grooves are respectively and fixedly arranged at the bottom ends and the top ends of the two, one end of each of the four radiating grooves penetrates through the two motor shells respectively, and twenty-eight radiating ports are formed in the four radiating grooves respectively.

As an anti-electromagnetic interference brushless dc motor's an preferred scheme, wherein: one side fixed mounting of refrigerator has four heat pipes, four the heat pipe all extends to outside the cooling frame.

As an anti-electromagnetic interference brushless dc motor's an preferred scheme, wherein: and eight filter screens are respectively and fixedly installed at the two ends of the four radiating grooves.

As an anti-electromagnetic interference brushless dc motor's an preferred scheme, wherein: the motor is characterized in that a bearing is fixedly mounted on an output shaft of the motor main body, and an outer ring of the bearing is fixedly connected with the motor shell.

As an anti-electromagnetic interference brushless dc motor's an preferred scheme, wherein: two the equal fixed mounting in bottom of motor casing has the support frame, two the base hole has all been seted up to one side of support frame.

As an anti-electromagnetic interference brushless dc motor's an preferred scheme, wherein: the shielding layer is made of ferromagnetic materials.

Compared with the prior art: by opening the motor main body, when the motor main body works, the shielding layer shields electromagnetic interference generated outside, the filter shields electromagnetic waves generated outside, so that the motor main body cannot be subjected to the electromagnetic interference caused outside, the booster water pump and the refrigerator are opened, the booster water pump conveys water into the cooling pipe, the cooling pipe drives the water to flow to the motor main body for cooling, the water after being heated in the cooling pipe flows to the booster water pump again after being cooled by the refrigerator for circulating for cooling, when wind blows through the motor shell, air flows into the radiating groove to drive hot air entering the radiating groove through the radiating port, the hot air is blown out of the motor shell, so that the interior of the motor shell is cooled, the brushless direct current motor capable of resisting the electromagnetic interference not only can shield the electromagnetic interference of the motor, but also can not be subjected to the operation of the external interference, the working stability is improved, and the brushless direct current motor has good cooling, the service life of the motor is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and 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 labor. Wherein:

fig. 1 is a front view of the present invention;

fig. 2 is a transverse sectional view of the present invention;

fig. 3 is a longitudinal sectional view of the present invention.

In the figure: 100 motor casings, 110 fixing holes, 120 shielding layers, 200 motor bodies, 210 filters, 300 cooling frames, 310 pressure water pumps, 320 cooling pipes, 330 refrigerators, 340 heat conduction pipes, 400 heat dissipation grooves, 410 heat dissipation ports, 420 filter screens, 500 bearings, 600 support frames and 610 base holes.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a brushless DC motor that can anti-electromagnetic interference, the electromagnetic interference that not only can shield the motor makes the motor can not receive external disturbance's operation, improves job stabilization nature, has fine cooling effect moreover, has prolonged the life of motor, please refer to and draw together figure 1, figure 2 and figure 3, include: motor case 100, motor body 200, cooling frame 300, and heat sink 400;

referring to fig. 1, 2 and 3 again, sixteen fixing holes 110 are respectively formed in one side of each of two motor casings 100, the two motor casings 100 are fixedly connected to each other through sixteen fixing holes 110, shielding layers 120 are fixedly installed in the two motor casings 100, specifically, the two motor casings 100 are connected to each other through bolts and threads through the sixteen fixing holes 110, the shielding layers 120 are embedded and connected to the two motor casings 100, the motor casings 100 are used for protecting an internal motor main body 200, the fixing holes 110 are used for connecting the two motor casings 100, and the shielding layers 120 are used for shielding electromagnetic interference generated outside;

referring to fig. 1, 2 and 3 again, a motor main body 200 is fixedly installed in the two motor cases 100, and a filter 210 is fixedly installed at one end of the motor main body 200, specifically, the two motor cases 100 are internally connected with the motor main body 200 through a bolt and a thread, one end of the motor main body 200 is connected with the filter 210 through a bolt and a thread, the motor main body 200 is used for realizing a motor function, and the filter 210 is used for shielding electromagnetic waves generated from the outside;

referring to fig. 1, 2 and 3 again, a cooling frame 300 is fixedly installed at one side of the motor casing 100 at the end of the motor main body 200, a pressure water pump 310 is fixedly installed in the cooling frame 300, a cooling pipe 320 is fixedly connected to one side and the bottom end of the pressure water pump 310, the cooling pipe 320 is wound on the motor main body 200, a refrigerator 330 is fixedly connected to one side of the cooling pipe 320, the refrigerator 330 is fixedly connected to the motor casing 100, specifically, one side of the motor casing 100 at the end of the motor main body 200 is connected to the cooling frame 300 through bolt threads, the pressure water pump 310 is connected to the cooling frame 300 through bolt threads, one side and the bottom end of the pressure water pump 310 are both communicated with the cooling pipe 320, one side of the cooling pipe 320 is connected to the refrigerator 330 through bolt threads, the refrigerator 330 is connected to the motor casing 100 through bolt threads, the cooling frame 300, the pressurized water pump 310 is used for conveying water flow to circulate in the cooling pipe 320, the cooling pipe 320 is used for providing a channel for the water flow to move, and the refrigerator 330 is used for reducing the temperature of the water flow in the cooling pipe 320;

referring to fig. 2 and 3 again, four heat dissipation grooves 400 are respectively fixedly installed at the bottom ends and the top ends of the two motor cases 100, one ends of the four heat dissipation grooves 400 respectively penetrate through the two motor cases 100, twenty-eight heat dissipation ports 410 are respectively formed in the four heat dissipation grooves 400, specifically, the four heat dissipation grooves 400 are respectively welded at the bottom ends and the top ends of the two motor cases 100, the heat dissipation grooves 400 are used for providing a channel for air to flow, and the heat dissipation ports are used for enabling air in the motor cases 100 to flow into the heat dissipation grooves 400 along the channel;

when the motor casing 100 is used specifically, a worker opens the motor main body 200, when the motor main body 200 works, the shielding layer 120 shields electromagnetic interference generated outside, the filter 210 shields electromagnetic waves generated outside, so that the motor main body 200 cannot be subjected to electromagnetic interference caused outside, the pressure water pump 310 and the refrigerator 330 are opened, the pressure water pump 310 conveys water to the cooling pipe 320, the cooling pipe 320 drives the water to flow to the motor main body 200 for cooling, the water after being heated in the cooling pipe 320 is cooled by the refrigerator 330 and then flows to the pressure water pump 310 again for cooling in a circulating manner, when wind blows the motor casing 100, the air flows to the heat dissipation groove 400, the hot gas flow entering the heat dissipation groove 400 through the heat dissipation port 410 is driven, the hot gas flow blows out of the motor casing 100, and the interior of the motor casing 100 is cooled.

Referring to fig. 1 and fig. 3 again, in order to dissipate heat of the refrigerator 330, four heat pipes 340 are fixedly installed at one side of the refrigerator 330, and the four heat pipes 340 all extend out of the cooling frame 300, specifically, the four heat pipes 340 are welded at one side of the refrigerator 330, and the heat pipes 340 are used for guiding heat out of the cooling frame 300.

Referring to fig. 2 again, eight filter screens 420 are fixedly installed at two ends of the four heat dissipation slots 400, specifically, the eight filter screens 420 are embedded into and connected to two ends of the four heat dissipation slots 400, respectively, and the filter screens 420 are used for preventing dust from entering the motor casing 100.

Referring to fig. 3 again, in order to prevent the output shaft of the motor main body 200 from generating noise when rotating on the motor casing 100, a bearing 500 is fixedly mounted on the output shaft of the motor main body 200, and an outer ring of the bearing 500 is fixedly connected to the motor casing 100, specifically, the bearing 500 is sleeved on the output shaft of the motor main body 200, the outer ring of the bearing 500 is embedded in and connected to the motor casing 100, and the bearing 500 is used for enabling the output shaft of the motor main body 200 to rotate on the motor casing 100.

Referring to fig. 1 again, in order to support and fix the device, the bottom ends of the two motor cases 100 are all fixedly mounted with the support frame 600, the base hole 610 is provided on one side of each of the two support frames 600, specifically, the support frame 600 is welded on the bottom ends of the two motor cases 100, the base hole 610 is provided on one side of each of the two support frames 600, the support frame 600 is used for supporting the device, and the base hole 610 is used for conveniently fixing the support frame 600.

Referring to fig. 3 again, in order to shield the shielding layer 120 from electromagnetic interference, the shielding layer 120 is made of ferromagnetic material.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A brushless DC motor capable of resisting electromagnetic interference, comprising: the motor comprises motor shells (100), a motor main body (200), a cooling frame body (300) and heat dissipation grooves (400), wherein sixteen fixing holes (110) are respectively formed in one sides of the two motor shells (100), the two motor shells (100) are fixedly connected with each other through the sixteen fixing holes (110), a shielding layer (120) is fixedly arranged in each of the two motor shells (100), the two motor shells (100) are fixedly arranged in the motor main body (200), a filter (210) is fixedly arranged at one end of the motor main body (200), the cooling frame body (300) is fixedly arranged on one side of the motor shell (100) at the tail end of the motor main body (200), a pressure water pump (310) is fixedly arranged in the cooling frame body (300), cooling pipes (320) are fixedly connected to one side and the bottom end of the pressure water pump (310), and the cooling pipes (320) are wound on the motor main body (200), one side fixedly connected with refrigerator (330) of cooling tube (320), refrigerator (330) fixed connection motor casing (100), two the bottom and the top of motor casing (100) are four fixed mounting respectively radiating groove (400), four the one end of radiating groove (400) runs through two respectively motor casing (100), four twenty-eight thermovents (410) have been seted up on radiating groove (400) respectively.

2. The brushless direct current motor capable of resisting electromagnetic interference according to claim 1, wherein four heat conduction pipes (340) are fixedly installed at one side of the refrigerator (330), and all four heat conduction pipes (340) extend out of the cooling frame body (300).

3. The brushless direct current motor capable of resisting electromagnetic interference according to claim 1, wherein eight filter screens (420) are fixedly mounted at two ends of four heat dissipation grooves (400), respectively.

4. The brushless dc motor according to claim 1, wherein a bearing (500) is fixedly mounted on the output shaft of the motor main body (200), and an outer ring of the bearing (500) is fixedly connected to the motor casing (100).

5. The brushless direct current motor capable of resisting electromagnetic interference according to claim 1, wherein a support frame (600) is fixedly mounted at the bottom end of each of the two motor housings (100), and a base hole (610) is formed in one side of each of the two support frames (600).

6. The brushless dc motor of claim 1, wherein the shield layer (120) is made of a ferromagnetic material.