CN114094772A - Brushless motor integrated with control system - Google Patents
Brushless motor integrated with control system Download PDFInfo
- Publication number
- CN114094772A CN114094772A CN202111454433.0A CN202111454433A CN114094772A CN 114094772 A CN114094772 A CN 114094772A CN 202111454433 A CN202111454433 A CN 202111454433A CN 114094772 A CN114094772 A CN 114094772A
- Authority
- CN
- China
- Prior art keywords
- motor
- shell
- pcb
- circuit board
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a brushless motor integrated with a control system, which comprises a motor shell, a stator fixedly arranged in the motor shell and a rotor rotatably arranged in the stator, wherein two ends of a rotating shaft of the rotor are respectively and rotatably connected to the motor shell, the tail end of the motor shell is fixedly connected with a PCB (printed circuit board) shell, a heat-conducting silica gel sheet is attached to an end plate at one end of the PCB shell, which is connected with the motor shell, a main control circuit board is arranged in the PCB shell, the main control circuit board is attached to the heat-conducting silica gel sheet, a wire passing hole is formed in the end plate at one end of the PCB shell, which is connected with the motor shell, a winding lead of the stator passes through the wire passing hole to be connected with the main control circuit board, and a lead wire used for connecting an external power supply is further connected to the main control circuit board. The brushless motor greatly simplifies the arrangement mode of the brushless motor and the control system, saves the installation space in equipment, and enables the brushless motor and the control system thereof to adapt to the requirement of miniaturization of electric tools.
Description
Technical Field
The invention belongs to the technical field of motors, and relates to a motor integrated with a control system.
Background
The action of the brushless motor is usually controlled by a control system, and the control system and the motor are usually separately arranged, so that a larger installation space is required to be occupied on equipment, and the control system and the motor are connected through a line, so that the difficulty of wiring in the equipment is increased.
Meanwhile, the action of the brushless motor is mainly driven by a power MOS tube on the control system, the power MOS tube has higher heat productivity, a good heat dissipation structure is needed, and the power MOS tube occupies the internal installation space of the equipment, so that the traditional brushless motor and the arrangement mode of the control system thereof are difficult to adapt to the miniaturization requirement of the existing electric tool.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the brushless motor integrated with the control system is integrated with the control system, circuit laying between the brushless motor and the control system is eliminated, meanwhile, the motor shell is used for radiating the control system, and a traditional radiator configured for a main control circuit board independently can be omitted, so that the arrangement mode of the brushless motor and the control system is greatly simplified, the installation space in equipment is saved, and the brushless motor and the control system thereof can meet the requirement of miniaturization of an electric tool.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides an integrated brushless motor that has control system, includes motor casing, the fixed stator that sets up in the motor casing and rotates the rotor that sets up in the stator inside, and the pivot both ends of rotor rotate respectively and connect on motor casing, PCB casing of tail end fixedly connected with of motor casing, the one end plate facing that PCB casing and motor casing are connected is equipped with the heat conduction silica gel piece, is provided with the master control circuit board in the PCB casing, and the master control circuit board pastes with the heat conduction silica gel piece and connects, seted up one on the one end plate that PCB casing and motor casing are connected and crossed the line hole, the winding lead wire of stator passes the line hole and is connected with the master control circuit board, still is connected with the wire that is used for connecting external power source on the master control circuit board.
Preferably, the outer wall of the PCB casing is circumferentially and discretely provided with a plurality of heat dissipation fins.
Preferably, one end of the PCB casing far away from the motor casing is open.
As a preferred scheme, one end of the PCB casing, which is far away from the motor casing, is provided with a control panel, the control panel is provided with a control switch for controlling the starting and stopping of the motor, and the control panel is electrically connected with the main control circuit board.
As a preferred scheme, the motor shell comprises a base and an upper cover, the base is buckled at the lower end of the stator, the upper cover is buckled at the upper end of the stator, the middle of the stator is exposed, and the PCB motor shell and the base are integrally formed.
The invention has the beneficial effects that: according to the invention, the PCB shell is arranged at the tail end of the motor shell, and the main control circuit board is arranged in the PCB shell, so that the integration of the brushless motor and the control system is realized, and the laying of a circuit between the brushless motor and the control system in the equipment is eliminated. Simultaneously, the heat conduction silica gel sheet and the PCB casing are used for realizing insulation and heat conduction, and the heat conduction connecting structure of the motor casing and the PCB casing is used for enabling the PCB casing and the whole motor casing to become a radiator of a main control circuit board, so that the motor and the main control circuit board share the radiator, the traditional radiator which is configured for the main control circuit board alone is omitted, the arrangement mode of the brushless motor and a control system is greatly simplified, the installation space of the brushless motor and the main control circuit board in equipment is reduced, and the brushless motor and the control system thereof can adapt to the requirement of miniaturization of an electric tool.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic view of a half-section of the present invention;
in fig. 1: 1. the motor comprises a motor shell 101, a base 102, an upper cover 2, a stator 201, a winding lead 3, a rotor 301, a rotating shaft 4, a PCB shell 5, a heat-conducting silica gel sheet 6, a main control circuit board 7, a wire passing hole 8, a lead 9, a radiating fin 10, a control panel 11 and a control switch.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, a brushless motor integrated with a control system includes a motor housing 1, a stator 2 fixedly disposed in the motor housing 1, and a rotor 3 rotatably disposed in the stator 2, wherein two ends of a rotating shaft 301 of the rotor 3 are respectively rotatably connected to the motor housing 1, a PCB housing 4 is fixedly connected to a tail end of the motor housing 1, a heat-conducting silica gel sheet 5 is attached to a end plate of the PCB housing 4 connected to the motor housing 1, a main control circuit board 6 is disposed in the PCB housing 4, the main control circuit board 6 is attached to the heat-conducting silica gel sheet 5, a wire passing hole 7 is disposed on the end plate of the PCB housing 4 connected to the motor housing 1, a winding lead 201 of the stator 2 passes through the wire passing hole 7 to be connected to the main control circuit board 6, and a lead 8 for connecting an external power supply is further connected to the main control circuit board 6.
In this embodiment, a large number of radiating fins 9 are circumferentially distributed on the outer wall of the PCB housing 4 in a discrete manner to improve the radiating effect of the PCB housing 4, and the PCB housing 4 can be made of aluminum or steel.
In order to improve the heat dissipation effect, one end of the PCB case 4 far away from the motor case 1 is open, and heat emitted by the main control circuit board 6 can be diffused from the open end of the PCB case 4, so that the heat dissipation effect of the main control circuit board 6 is further improved.
In order to further simplify the arrangement of the brushless motor and the control system, in this embodiment, a control panel 10 is disposed at an end of the PCB housing 4 away from the motor housing 1, a control switch 11 for controlling the start and stop of the motor is disposed on the control panel 10, and the control panel 10 is electrically connected to the main control circuit board 6. The control panel 10 is directly connected to the PCB housing 4, so that the laying of wires between the control panel 10 and the main control circuit board 6 in the device is further simplified, and the integration level of the brushless motor and the control system thereof is further improved.
As shown in fig. 1, the motor housing 1 in this embodiment includes a base 101 and an upper cover 102, the base 101 is fastened to the lower end of the stator 2, the upper cover 102 is fastened to the upper end of the stator 2, the middle portion of the stator 2 is exposed to improve the heat dissipation effect of the stator 2, the PCB housing 4 and the base 101 are integrally formed to improve the heat conduction effect between the PCB housing 4 and the base 101, and further improve the heat dissipation effect of the main control circuit board 6.
The working principle of the invention is as follows: according to the invention, the PCB casing 4 is arranged at the tail end of the motor casing 1, and the main control circuit board 6 is arranged in the PCB casing 4, so that the integration of the brushless motor and the control system is realized, and the laying of a circuit between the brushless motor and the control system in the equipment is eliminated. Meanwhile, the main control circuit board 6 realizes insulation heat conduction with the PCB casing 4 through the heat conduction silica gel sheet 5, and the heat conduction connection structure of the motor casing 1 and the PCB casing 4 is matched, so that the PCB casing 4 and the whole motor casing 1 become a radiator of the main control circuit board 6, the motor and the main control circuit board 6 share the radiator, thereby omitting the traditional radiator which is independently configured for the main control circuit board 6, greatly simplifying the arrangement mode of the brushless motor and a control system, reducing the installation space of the brushless motor and the main control circuit board 6 in the equipment, and enabling the brushless motor and the control system thereof to adapt to the miniaturization requirement of an electric tool.
The above embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments in use, and are not intended to limit the invention; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (5)
1. A brushless motor integrated with a control system comprises a motor shell (1), a stator (2) fixedly arranged in the motor shell (1) and a rotor (3) rotatably arranged in the stator (2), wherein two ends of a rotating shaft (301) of the rotor (3) are respectively rotatably connected to the motor shell (1), the brushless motor is characterized in that the tail end of the motor shell (1) is fixedly connected with a PCB (printed circuit board) shell (4), a heat-conducting silica gel sheet (5) is attached to an end plate at one end of the PCB shell (4) connected with the motor shell (1), a main control circuit board (6) is arranged in the PCB shell (4), the main control circuit board (6) is attached to the heat-conducting silica gel sheet (5), a wire passing hole (7) is formed in an end plate at one end of the PCB shell (4) connected with the motor shell (1), a winding lead (201) of the stator (2) passes through the wire passing hole (7) to be connected with the main control circuit board (6), the main control circuit board (6) is also connected with a lead (8) for connecting an external power supply.
2. The brushless electric machine with integrated control system according to claim 1, characterized in that the PCB housing (4) has a plurality of fins (9) distributed circumferentially in discrete sections on its outer wall.
3. The brushless electric machine integrated with a control system according to claim 1, wherein the end of the PCB housing (4) remote from the motor housing (1) is open.
4. The brushless motor with integrated control system according to claim 3, wherein a control panel (10) is disposed at an end of the PCB casing (4) away from the motor casing (1), a control switch (11) for controlling the start and stop of the motor is disposed on the control panel (10), and the control panel (10) is electrically connected to the main control circuit board (6).
5. The brushless motor with the integrated control system according to any one of claims 1 to 4, wherein the motor housing (1) comprises a base (101) and an upper cover (102), the base (101) is fastened to the lower end of the stator (2), the upper cover (102) is fastened to the upper end of the stator (2), the middle of the stator (2) is exposed, and the PCB housing (4) and the base (101) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111454433.0A CN114094772A (en) | 2021-12-01 | 2021-12-01 | Brushless motor integrated with control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111454433.0A CN114094772A (en) | 2021-12-01 | 2021-12-01 | Brushless motor integrated with control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114094772A true CN114094772A (en) | 2022-02-25 |
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ID=80306133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111454433.0A Pending CN114094772A (en) | 2021-12-01 | 2021-12-01 | Brushless motor integrated with control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114094772A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759699A (en) * | 2022-04-06 | 2022-07-15 | 江苏三江电器集团股份有限公司 | Plastic package BLDC clothes dryer motor |
-
2021
- 2021-12-01 CN CN202111454433.0A patent/CN114094772A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759699A (en) * | 2022-04-06 | 2022-07-15 | 江苏三江电器集团股份有限公司 | Plastic package BLDC clothes dryer motor |
| CN114759699B (en) * | 2022-04-06 | 2022-11-25 | 江苏三江电器集团股份有限公司 | Plastic package BLDC clothes dryer motor |
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