JP2003032952A - Drum structure for storing driving control means in internal stator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outer rotor motor, capable of eliminating complexity and inconvenience through production and installation by separating a conventional motor from a driving control electric circuit, attaining high operating efficiency of a drum-type motor by accommodating the driving control electric circuit in a hollow space of a stator internal annular section and electrical characteristics of the drive control electric circuit highly resistant to interference from the outside, and facilitating installation and operation. SOLUTION: An internal stator is disassembled into the stator internal annular section and an internal stator gear section, and a coil housing base. A stator coil is attached onto the coil housing base, and then the coil housing base is installed on the stator internal annular section. The front end and the rear end of the stator coil are respectively welded to a stator coil electric circuit substrate; and among them, the maximum hollow space is provided in the stator internal annular section, and both end surfaces of the stator internal annular section are covered with two stator internal annular section end covers. The drive control electric circuit can be attached to the stator internal annular section having the hollow space which have been covered, a concentric hole is formed at a center end of an end cover, and a support shaft is jointed tightly with the concentric hole. The shaft includes at least one through hole for permitting penetration of a drive control signal conductor to perform connection control of control signals at the inside and outside of the motor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum structure in which a drive control means is incorporated in an inner stator part, and in particular, the inner stator part forms a maximum hollow space by an inner ring part and a drive electric The present invention relates to a drum type outer rotor motor having a circuit housed therein. It eliminates the complexity and inconvenience caused by the conventional motor and drive control electric circuit being separately manufactured and attached.The present invention stores the drive control electric circuit in the hollow space of the inner ring of the stator, It is a main object of the present invention to provide an outer rotor motor which requires high operating efficiency of a drum type motor, makes the electric characteristics of a drive control electric circuit less likely to interfere with the outside, and is easy to install and operate.

[0002]

2. Description of the Related Art As shown in FIG. 1A, in a conventional outer rotor drum type motor, a shaft inner through hole 315, a coil tip portion, a terminal portion 419, a magnet yoke 611, and an outer rotor outer casing 612 are provided. And an outer casing end cover 613, a bearing 614, an outer rotor magnet 615, an inner stator 71, a sensor electric path substrate 712, and the like.

In order to manufacture a motor with high operating efficiency, the problem of manufacturing is that the winding of the exciting coil is a problem (FIG. 1B,
See FIG. 1C, coil winding path 713 of the winding guide pin). To have high operating efficiency, the motor must have corresponding electric and magnetic loads, of which
The electric load is related to the number of turns of the stator excitation coil and the wire diameter, and having a high electric load means having a high excitation current. It is necessary to allow a high exciting current to flow by having a coil, and to improve the effective operating efficiency of the motor, it is necessary to increase the wire diameter of the exciting coil to reduce the coil resistance. Therefore, the area occupied by the exciting coil in the wire tank can be increased to accommodate the stator coil having the larger resistance and the lower resistance (see the stator coil 413 in FIGS. 2B and 2C).

[0004]

In the conventional drum type motor, the drive control electric circuit is attached to the outside of the motor, and the drive control electric circuit and the detection electric circuit are well arranged so that the lead wire between the motor and the motor is long. Therefore, there is a problem in connection, and there is a phenomenon that the entire control system is easily interfered with and becomes unstable. The mounting position of the drive control electric circuit is also a big issue. For example, when used in an electric vehicle,
The aesthetic issue of matching the path of the lead wire between the drum motor and the drive control circuitry and the overall system layout must be considered.

[0005]

In view of the above-mentioned problems of the conventional drum type motor, the present invention has a maximum inner diameter of the conventional inner stator portion (see the inner stator 71 shown in FIG. 1B). (See hollow space 214 shown in FIG. 2B)
Since it is sufficient if the magnetic conducting space in the inner hole diameter portion is appropriate when the motor is excited, the inner hole diameter of the stator inner ring part can be expanded, and the motor drive control electric circuit can be installed in the expanded hollow space. It is possible to store, it is possible to solve problems such as electric circuit attachment and connection process, electric circuit interference, and the like, and it is possible to achieve an effect of solving a plurality of problems of conventional products. Further, regarding the winding process of the coil of the motor, the present invention allows the tooth root ends of the stator portion to be equidistantly spaced from the inner stator outer ring portion according to the number of wire tubs, and the tooth root tip after the spacing can be Insulates the outer stator coil that is preformed on the insulated wire tank seat at the root end of the stator so as to create a mating coupling end that can be fitted together and fit with the outer ring portion of the inner stator. The stator coil, which means that the winding occupancy of the stator coil in the stator wire tank is significantly improved (FIGS. 2B and 2C).
(Θ2)), in general, the drum structure of the present invention, in which the drive control means is incorporated in the inner stator portion, can be formed so that the drum type motor has high operation efficiency, and It is possible to provide an excellent structure that has mechanical structure strength and is easy to install, is easy to operate, and is resistant to interference.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the configurations thereof are merely the preferred embodiments of the present invention, and the configurations of the present invention are the same. It is stated in advance that it is not limited to only.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIGS. 2A, 2B, 2C to 6A and 6B, an inner ring portion 211 is included in a drum structure 10 in which drive control means is incorporated in an inner stator portion of the present invention.
Form a maximum hollow space 214, and the plurality of stator tooth portions 212 are radiatively stretched so that the outer edge ends of the inner ring portion 211 face outward and become equidistant, and adjacent stator tooth root ends are formed. Two
Wire tank 2 that can store a stator coil 413 between 18
15 has an inner stator portion 21 and a plurality of welding holes 417 used for welding and fixing the distal end portion 419 of the wire of the stator coil 413 and a plurality of electric circuit board positionings. Hole 416 and electric circuit copper foil wire 418
And a connecting wire welding hole 420, and a stator coil electric circuit board 415 and the upper and lower end surfaces of the stator inner ring portion 211, the center ends of both of which are the outer rotor portion 61 and the inner stator portion of the motor. 21 is soldered and fixed to the stator ring end cover 31, which forms a concentric through hole 317 in concentricity with 21, and the drive electric circuit board and the control electric circuit board 514, and the electric circuit boards 511 and 514 are the stators. The stator inner ring part 211 is locked and fixed on the side where the ring end cover 31 is present.
Is mounted in the hollow space 214 of the electric circuit board 511, and the electric circuit board 511 further includes a drive electric circuit connection line 512 and a drive electric circuit switch 5
13, a drive control electric circuit, and the end cover 31.
At least one through hole 312 which is tightly joined in the concentric through hole 317 at the center end of the drum, protrudes from the outer casing end cover 613 of the drum, and is located at the axial center and the axial side.
The drum support shaft 311 is provided with which a control command of the control electric circuit is issued from an external control system through the through holes 312 and 313 to execute the control. And bearing 614
And the drum support shaft 311 is fitted in the inner diameter portion of the bearing 614, and the outer diameter portion of the bearing 614 is the outer rotor portion 6.
No. 1 outer casing end cover 613, and the outer casing end cover 613 is fitted with the outer rotor magnet 615 and the magnet yoke 6.
It has an outer rotor portion 61 that sandwiches and locks 11 and the inner stator portion 21, and operates by reacting an armature.

The stator coils 413 of the inner stator wire bath 215 are individually wound (for example, using a rotary shaft winding machine) or bent (for example, using a spring forming machine). After that, it is attached to the wire tank seat 411, and then to each stator tooth root end 218, and after fitting the insulating pieces 414, the fitting tank 2 of the stator ring portion is attached.
17 and a positioning pin 412 is provided on the wire tub seat 411.

Further, after the stator coil 413 of the inner tub wire tub 215 is directly wound around the wire tub seat, it is mounted on each stator tooth root end 218 and then the stator ring portion is fitted. You may make it fit in a tank.

Further, the stator coil 413 in the inner stator wire tub 215 may be installed in an insulating manner in the stator wire tub 215 by a concentrated winding method over the tub.

In addition, the inner stator portion 21 is formed by independently pressing and folding a stator inner ring portion 211 and a stator tooth portion 212, and the stator tooth portion 212 is formed by the liner seat 411. After assembly with the stator coil 413, the stator coil 413 is combined with the stator inner ring portion 211 and combined to form a perfect inner stator portion 21 (see FIG. 6B).

Further, the inner stator portion 21 is formed by integrally pressing and stacking the stator inner ring portion 211 and the stator tooth portion 212 (see FIG. 6A), and the stator coil 413 is insulated. Alternatively, it may be mounted in the line bath 215.

The structure of the drive control electric circuit has a drive electric circuit board 511 having the drive electric circuit, and is mounted in the hollow space 214 of the stator inner ring portion 211.

Further, the structure of the drive control electric circuit has a drive electric circuit board 511 having a drive control electric circuit and a control electric circuit board 514, all of which are inside the stator inner ring portion 21.
It may be mounted in one hollow space 214.

Further, the end cover 31 of the inner stator portion 21.
The outer edge of the inner ring part 211 forms a flange 316 corresponding to the hollow space 214 of the inner ring part 211, and is covered by the upper and lower end surfaces of the stator inner ring part 211, and the end cover 31 has a plurality of through holes 3.
14 is formed, a plurality of end cover positioning holes 318 are formed on the outer circumference of the flange 316, and the stator inner ring portion 2 is formed.
A hollow space 214 of the inner ring portion 211 is formed by concentrically locking with both end faces of 11, and the driving electric circuit of the driving electric circuit board 511 of the hollow space 214 and the stator coil 413 are welded and connected to each other to form an exciting coil winding network. And the control electric circuit board 514 receives a command from the external control system, and the drive electric circuit board 511 receives the motor stator exciting coil 413.
The outer rotor magnet 615 is controlled to control the armature and the motor is operated.

The above-described configuration is merely a preferred embodiment of the present invention, and is not an absolute limitation of the configuration of the present invention. Based on the scope of the claims of the present invention. It is stated in advance that all modifications, alterations and partial diversions that are carried out should belong to the claimed scope of the present invention.

[Brief description of drawings]

FIG. 1A is an exploded view showing a conventional outer rotor drum type motor.

FIG. 1B is a diagram showing a θ1 coil winding state of a conventional outer rotor drum type motor.

FIG. 1C is a diagram showing a θ1 coil winding state of a conventional outer rotor drum type motor.

FIG. 2A is an exploded perspective view showing a drum type motor according to an embodiment of the present invention.

FIG. 2B is a θ2 of the drum type motor according to the embodiment of the present invention.
It is a figure which shows the coil winding condition.

FIG. 2C is a θ2 of the drum type motor according to the embodiment of the present invention.
It is a figure which shows the coil winding condition.

FIG. 3 is an exploded perspective view showing a case where the drive control electric circuit board according to the embodiment of the present invention is mounted in the hollow space inside the stator inner ring portion of the inner stator portion.

FIG. 4A is an exploded perspective view showing a connection state of the drive electric circuit and the circuit of the stator coil electric circuit board according to the embodiment of the present invention.

FIG. 4B is an assembled perspective view showing the connection state of the drive electric circuit and the circuit of the stator coil electric circuit board according to the embodiment of the present invention.

FIG. 5A is an assembled perspective view showing a case after the inner stator portion is combined and the outer rotor portion according to the embodiment of the present invention.

FIG. 5B is a side perspective view showing the drum after the combination of the embodiments of the present invention.

FIG. 5C is a side view showing the drum after the combination of the embodiments of the present invention.

FIG. 6A is a cross-sectional view of the inner stator portion of integral molding and combination molding according to the embodiment of the present invention.

FIG. 6B is a cross-sectional view of the integrally molded and combined molded inner stator portion according to the embodiment of the present invention.

[Explanation of symbols]

10 Drum Structure Incorporating Drive Control Means in Inner Stator Part 21 Inner Stator Part 211 Stator Inner Ring Part 212 Stator Tooth Part 214 Hollow Space 215 Wire Tank 217 Fitting Tank 218 Stator Root End 31 End Cover 311 Drum Support shaft 312 Shaft through hole 313 Shaft side through hole 314 Through hole 315 Shaft through inner hole 316 Flange 317 Concentric through hole 318 Positioning hole 411 Wire chamber seat 412 Positioning pin 413 Stator coil 414 Insulating piece 415 Stator coil electric circuit Board 416 Electric circuit board positioning hole 417 Welding hole 418 Electric circuit copper foil wire 419 Coil tip and end 420 Connection wire welding hole 511 Drive electric circuit board 512 Drive electric circuit connection wire 513 Drive electric circuit switch 514 Control electric circuit Substrate 61 Outer rotor portion 611 Magnet yoke 612 Outer rotor outer casing 613 Winding path of the casing end cover 614 bearing 615 in the outer rotor magnet 71 stator 712 detects the electric circuit board 713 coil winding guide pin

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5H002 AA07 AB05 AB06 AB09 AC02                       AE08                 5H603 AA03 AA04 AA09 BB01 BB09                       CA01 CA02 CB13 CC11 CC17                       CD01 CE01 EE01                 5H604 AA05 AA08 BB01 BB15 CC01                       CC05 QA01 QA04 QA08 QB01                       QB04 QB12 QB15                 5H605 AA07 BB05 BB19 CC03 CC09                       CC10 EA02 EC07 EC08 EC20                       GG02                 5H621 BB07 GA01 GA04 GA12 GA16                       GB03 GB14 HH03 JK08 JK14

Claims (9)

[Claims] 1. A plurality of stator tooth portions are radiatively extended and formed so as to form a maximum hollow space in the inner ring portion and be equidistant outward from an outer end edge portion of the inner ring portion, An inner stator part in which a wire tank capable of housing a stator coil is formed between tooth root ends of adjacent stators, and a plurality of through-welding fixations of the distal end and the distal end of the wire of the coil of the stator. A stator coil electric circuit board in which a welding hole is formed, and upper and lower edge portions of the inner ring portion of the stator are covered, and the outer rotor portion of the motor and the inner stator portion are concentric with each other at their center portions. And the stator ring end cover that forms concentric through holes, and is soldered to the drive electric circuit board and the control electric circuit board.
And a drive control electric circuit set so that the substrate is locked to one side of the stator ring end cover and located in the hollow space of the stator inner ring; and a concentric penetration of the center end of the end cover. Tightly joined in the hole and projected from the outer casing end cover of the drum,
A drum support shaft having a through hole provided for penetrating a power supply lead wire of a drive control electric circuit, and an operation command of the control electric circuit is also transmitted by connecting to an external control system through the through hole. A bearing, the drum support shaft is held in the inner diameter portion of the bearing, and the outer diameter portion of the bearing fits over the outer casing end cover of the outer rotor portion, and the outer casing end cover is the outer rotor magnet. And a magnet yoke, and has an inner stator portion and an outer rotor portion that operates by causing an armature reaction. A drum structure in which drive control means is incorporated in the inner stator portion. 2. The stator coil of the wire tank of the inner stator portion is formed by being individually wound or bent and then mounted on the wire tank seat, and then each stator tooth root end is formed. The drum structure having drive control means built in the inner stator part according to claim 1, wherein the drum structure is fitted to the fitting tank of the stator ring part. 3. The stator coil of the wire tank of the inner stator portion is directly wound around the wire tank seat, and then mounted on the root end of each stator, and then the fitting tank of the stator ring portion. The drum structure in which the drive control means is built in the inner stator portion according to claim 1. 4. The inner part of the stator according to claim 1, wherein the stator coil of the wire tank of the inner stator part is insulated and mounted in the stator wire tank by concentrated winding over the tank. Drum structure with drive control means built in the stator. 5. The inner stator portion is formed by independently press-working and stacking a stator inner ring portion and a stator tooth portion, and the stator tooth portion is also a wire tank. The drive control means for the inner stator part according to claim 1, wherein the seat and the stator coil are assembled and then assembled to the inner ring part of the stator to form a perfect inner stator part. Built-in drum structure. 6. The inner stator portion is formed by integrally pressing and stacking a stator inner ring portion and a stator tooth portion, and the stator coil is insulated and mounted in the wire tank. The drum structure having drive control means built in the inner stator portion according to claim 1. 7. The drive control electric circuit according to claim 1, wherein the drive control electric circuit includes only a drive electric circuit board of the drive electric circuit mounted on the hollow end of the inner ring portion of the stator. Drum structure with drive control means built in the stator. 8. The structure of the drive control electric circuit includes a drive electric circuit board and a control electric circuit board of the drive control electric circuit mounted on the hollow end of the inner stator ring portion. The drum structure in which the drive control means is built in the inner stator portion described in. 9. A flange end is formed at a portion of the outer edge of the end cover of the inner stator portion corresponding to the hollow space of the ring portion, and the flange ends are covered by the upper and lower end surfaces of the inner ring portion of the stator. While having a plurality of end cover positioning holes on the outer circumference of the flange end and being concentric with both end surfaces of the stator inner ring part, the hollow space of the inner ring part is formed correspondingly, and the hollow electric drive circuit board The drive electric circuit and the stator coil are welded and connected to form an exciting coil, and the control electric circuit controls the stator exciting coil of the motor in response to a command from the external control system to operate by reacting with the rotor magnet and the armature. The drum structure, wherein drive control means is built in the inner stator portion according to claim 1, which is performed.