CN214543881U

CN214543881U - Brushless motor module capable of replacing series excited motor

Info

Publication number: CN214543881U
Application number: CN202120302283.0U
Authority: CN
Inventors: 黄正滨
Original assignee: Jiangmen Runsheng Electromechanical Co ltd
Current assignee: Jiangmen Runsheng Electromechanical Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-10-29
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses a can replace brushless motor module of series excited machine, including the motor casing, the motor casing divide into cavity and lower cavity, go up the internal brushless motor that is fixed with of cavity, the internal power module that is fixed with of lower cavity, the power module electricity is connected to brushless motor, and this module is similar in appearance structure with traditional U series excited machine, and the customer need not to change the mould when changing for use, and direct replacement can, simultaneously, this scheme separates power module and brushless motor in two chambeies, can carry out the electricity isolation, simultaneously because the brushless motor volume is littleer, so can come more spaces more, this has fully utilized unnecessary space, the utility model belongs to the motor field.

Description

Brushless motor module capable of replacing series excited motor

Technical Field

The utility model belongs to the motor field, more specifically say, relate to a can replace brushless motor module of series excited machine.

Background

The single-phase series Motor is commonly called a series Motor (Universal Motor) and is named because an excitation winding and an excitation winding are connected in series to work. The single-phase series motor belongs to AC and DC dual-purpose motor, which can work by AC power supply and DC power supply.

The carbon brush is arranged in the series excited machine and can be slowly worn. When the motor works, sparks exist, strong electromagnetic interference exists, the rotating speed is high, and both the stator and the rotor are provided with coils. Induction motors, brushless (commutator), are usually capacitor-started, usually squirrel-cage, and the stator is a coil, the rotor is cast aluminum, and the single phase is usually less than 3000 revolutions (the rotational speed is inversely proportional to the number of pole pairs).

Many air purifier in the existing market, fan, air discharge fan, the floor fan of lying prone, microwave oven, light wave stove etc. all use traditional series excited machine, and the similar to of the used series excited machine of most domestic appliance is cylindrical, and its package lacquer wire, iron core etc. all are outer hourglass, bulky, heavy, the security is poor, the rotational speed is low.

The brushless direct current motor is composed of a motor main body and a driver, and is a typical electromechanical integration product. Because the brushless DC motor is operated in a self-control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor which is started under the condition of heavy load under the condition of frequency conversion and speed regulation, and oscillation and step-out can not be generated when the load suddenly changes.

For example, the same air purifier uses a series motor 18W, the maximum rotating speed can only reach 2600rpm, and a brushless motor is adopted, the power of the brushless motor only needs 5W, and the rotating speed can reach 3250 rpm.

Therefore, the technical problem that the present scheme was solved is: how to replace the series excited motor by the advantages of the brushless motor and not needing a customer to replace a mold.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a can replace brushless motor module of series excited machine, this module and traditional U are series excited machine similar in appearance structure, and the customer need not to change the mould when using in exchange, and direct replacement can, simultaneously, this scheme separates power module and brushless motor in two chambeies, can carry out the electricity isolation, simultaneously because the brushless motor volume is littleer, so can come more spaces, this kind make full use of unnecessary space.

According to the utility model discloses an aspect provides a can replace brushless motor module of series excited machine, including the motor casing, the motor casing divide into cavity and lower cavity, go up the internal brushless motor that is fixed with of cavity, the internal power module that is fixed with of lower cavity, power module electricity is connected to brushless motor.

In the above brushless motor module with a replaceable series motor, the upper cavity is internally provided with the main control module, the power supply module is electrically connected to the main control module, and the main control module is electrically connected to the brushless motor.

In the above brushless motor module with a replaceable series motor, the brushless motor includes a stator, a rotor, and a driving shaft, a first bearing is disposed between the driving shaft and the upper wall of the upper cavity, and a second bearing is disposed between the bottom of the driving shaft and the bottom of the upper cavity.

In the above brushless motor module with a replaceable series motor, the motor casing includes an upper casing, a lower casing, and a partition board fixed between the upper casing and the lower casing, the upper casing defines the upper cavity, and the lower casing and the partition board define the lower cavity.

In the above brushless motor module with a replaceable series motor, the power module is mounted on a first circuit board, and the first circuit board is clamped and fixed between the partition plate and the lower housing.

In the above brushless motor module with a replaceable series motor, the upper cavity is internally provided with the main control module, the power supply module is electrically connected to the main control module, the main control module is electrically connected to the brushless motor, the main control module is carried on the second circuit board, and the second circuit board is clamped and fixed between the partition plate and the upper shell.

In the above-mentioned brushless motor module with a replaceable series motor, the brushless motor includes a stator, a rotor and a driving shaft, a first bearing is arranged between the driving shaft and the upper wall of the upper housing, a second bearing is arranged between the bottom of the driving shaft and the upper surface of the partition plate, a bearing seat is arranged on the upper surface of the partition plate, the second bearing is fixed in the bearing seat, the bearing seat is in a truncated cone shape, the second circuit board is an annular circuit board, the second circuit board is sleeved on the outer side of the bearing seat, and the edge of the second circuit board is abutted against the lower part of the upper housing.

In the above brushless motor module with a replaceable series motor, the lower surface of the partition plate is provided with a plurality of reinforcing ribs.

In the above brushless motor module capable of replacing a series motor, the motor case is cylindrical.

In the above brushless motor module with a replaceable series motor, the power module is further provided with a power supply module for supplying power to peripheral electric equipment.

The utility model discloses a technical scheme has following advantage or one of beneficial effect at least among the above-mentioned technical scheme:

this module is similar in appearance structure with traditional U is series excited machine, and the customer need not to change the mould when changing usefulness, direct replacement can, simultaneously, this scheme separates power module and brushless motor in two chambeies, can carry out the electrical isolation, simultaneously because the brushless motor volume is littleer, so can come more spaces, this has fully utilized unnecessary space.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

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

fig. 2 is a plan view of embodiment 1 of the present invention;

fig. 3 is a sectional view a-a of fig. 2 of embodiment 1 of the present invention;

fig. 4 is a bottom view of the separator according to embodiment 1 of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, and may be, for example, a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other elements or indirectly connected through one or more other elements or in an interactive relationship between two elements.

The following disclosure provides many different embodiments or examples for implementing different aspects of the invention.

Referring to fig. 1 to 4, in an embodiment of the present invention, a brushless motor module capable of replacing a series motor includes a motor casing, the motor casing is divided into an upper cavity 1 and a lower cavity 2, a brushless motor is fixed in the upper cavity 1, a power module is fixed in the lower cavity 2, and the power module is electrically connected to the brushless motor.

The motor casing of this embodiment is preferably of a cylindrical or cylindrical-like configuration, as similar as possible to the appearance of the U-series motor.

Brushless motors with the same or similar rotational speed as the series motor are small and have a height of about half the height of the corresponding series motor.

Therefore, the power supply module is arranged in the lower cavity 2, and the problem that the structure is too complex due to the fact that the voltage module is arranged outside is avoided.

Preferably, a main control module is arranged in the upper cavity 1, the power module is electrically connected to the main control module, and the main control module is electrically connected to the brushless motor.

In the present embodiment, the brushless motor includes a stator 3, a rotor 4, and a driving shaft 5, a first bearing 6 is disposed between the driving shaft 5 and the upper wall of the upper chamber 1, and a second bearing 7 is disposed between the bottom of the driving shaft 5 and the bottom of the upper chamber 1. The stator 3 is fixed in the upper cavity 1, and the rotor 4 is fixedly connected with the driving shaft 5. The driving shaft 5 extends from the upper and lower portions of the rotor 4, the upper portion of the driving shaft 5 extends out of the upper chamber 1 as a driving end, and the lower portion of the driving shaft 5 extends to the bottom of the upper chamber 1.

As further refinement of this embodiment, the motor casing includes upper casing 8, lower casing 9 and fixes baffle 10 between upper casing 8 and lower casing 9, upper casing 8 encloses into last cavity 1, lower casing 9 and baffle 10 enclose into lower cavity 2, and upper casing 8, lower casing 9, baffle 10 carry out locking connection through the bolt.

The brushless motor is fixed in the upper shell 8, and the stator 3 is fixed in the upper shell 8.

In this embodiment, the power module is mounted on a first circuit board 11, and the first circuit board 11 is sandwiched and fixed between the partition plate 10 and the lower case 9. A plurality of support columns 12 are arranged on the inner wall of the lower shell 9, the edge of the first circuit board 11 is placed on the support columns 12, and the partition plate 10 is pressed on the edge of the first circuit board 11, and more preferably, the first circuit board 11, the support columns 12 and the partition plate 10 are connected through bolts.

In this embodiment, the main control module is mounted on a second circuit board 13, the second circuit board 13 is clamped and fixed between a partition board 10 and an upper shell 8, a bearing seat 14 is arranged on the upper surface of the partition board 10, the second bearing 7 is fixed in the bearing seat 14, the bearing seat 14 is in a circular truncated cone shape, the second circuit board 13 is an annular circuit board, the second circuit board 13 is sleeved on the outer side of the bearing seat 14, and the edge of the second circuit board 13 abuts against the lower portion of the upper shell 8.

The bearing seat 14 has a firm structure and high strength, and the second circuit board 13 has a reasonable layout.

In this embodiment, the lower surface of the partition board 10 is provided with a plurality of reinforcing ribs 15.

As a further preferable feature of this embodiment, a power supply module for supplying power to peripheral electric equipment is further added to the power supply module. The advantage of this arrangement is that, for example, if the module is used in a microwave oven, the power supply module in the power supply module can supply power to the display of the microwave oven, thus eliminating the need for a separate ac/dc conversion module in the microwave oven.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The brushless motor module comprises a motor shell and is characterized in that the motor shell is divided into an upper cavity and a lower cavity, the brushless motor is fixed in the upper cavity, a power module is fixed in the lower cavity, and the power module is electrically connected to the brushless motor.

2. The brushless motor module with a replaceable series motor according to claim 1, wherein a main control module is disposed in the upper cavity, the power module is electrically connected to the main control module, and the main control module is electrically connected to the brushless motor.

3. The brushless motor module with a replaceable series motor of claim 1, wherein the brushless motor comprises a stator, a rotor, and a drive shaft, a first bearing is disposed between the drive shaft and the upper wall of the upper chamber, and a second bearing is disposed between the bottom of the drive shaft and the bottom of the upper chamber.

4. The brushless motor module with a replaceable series excited motor of claim 1, wherein the motor housing comprises an upper housing, a lower housing, and a partition plate fixed between the upper housing and the lower housing, the upper housing enclosing the upper cavity, and the lower housing and the partition plate enclosing the lower cavity.

5. The brushless motor module with a replaceable series motor of claim 4, wherein the power module is mounted on a first circuit board, and the first circuit board is clamped and fixed between the partition plate and the lower housing.

6. The brushless motor module with a replaceable series motor according to claim 4, wherein a main control module is disposed in the upper cavity, the power module is electrically connected to the main control module, the main control module is electrically connected to the brushless motor, the main control module is mounted on a second circuit board, and the second circuit board is clamped and fixed between the partition plate and the upper shell.

7. The brushless motor module with the replaceable series motor according to claim 6, wherein the brushless motor comprises a stator, a rotor and a driving shaft, a first bearing is arranged between the driving shaft and the upper wall of the upper housing, a second bearing is arranged between the bottom of the driving shaft and the upper surface of the partition plate, a bearing seat is arranged on the upper surface of the partition plate, the second bearing is fixed in the bearing seat, the bearing seat is in a truncated cone shape, the second circuit board is an annular circuit board, the second circuit board is sleeved on the outer side of the bearing seat, and the edge of the second circuit board abuts against the lower portion of the upper housing.

8. The brushless motor module of any one of claims 4-7, wherein the partition has ribs on its lower surface.

9. The brushless motor module of any one of claims 1-7 in which the motor housing is cylindrical.

10. The brushless motor module of any one of claims 1 to 7, wherein a power supply module for supplying power to an external power-consuming device is further added to the power module.