TWI535155B - Motor - Google Patents

Description

motor

The present invention relates to a motor, and more particularly to a motor structure in which a drive control group can be disposed outside the motor casing for reducing the size of the motor casing and facilitating quick maintenance and replacement.

Referring to FIG. 1 , the conventional motor 9 includes a motor case 91. The motor case 91 is internally provided with a rotor and a stator. The stator can drive the rotor to rotate. The rotor has a motor that can be inserted outside the motor case 91. A rotating shaft 92 for providing a rotational output power. Similar to the detailed structural composition and operation principle of the conventional motor 9, it is disclosed in the Republic of China Announcement No. 565980 "Three-machine co-constructed permanent magnet motor power system" invention patent.

A drive control group is disposed inside the motor housing 91 of the conventional motor 9. The drive control group generally includes a drive circuit and a power module. The power module may include a rectifier circuit, a transformer or a filter circuit, etc., for supplying power to the driving circuit, and the driving circuit generates a driving signal to the stator, so that the stator can drive the rotor to rotate.

However, when the above-described drive control assembly is provided inside the motor casing 91, the drive control group easily occupies an excessive assembly space inside the motor casing 91. Especially when the conventional motor is a brushless DC motor, compared with the conventional AC motor, the power module of the drive control group necessarily includes a rectifier circuit such as an AC/DC converter, resulting in the power module being compared with the drive. The circuit is usually a relatively bulky component. Therefore, the motor casing 91 must have a relatively large hollow casing, so that the rotor, the stator and the drive control group and the like are simultaneously mounted inside the motor casing 91, causing the conventional motor 9 to have a large volume and the like. .

Moreover, since the drive control group is installed inside the motor casing 91, Therefore, when the power module of the drive control group is to be repaired and replaced, the motor casing 91 must be disassembled before the maintenance and replacement of the power module can be smoothly performed. Therefore, the conventional motor 9 has poor maintenance convenience. problem. Further, the high heat generated by the drive control group during the actual operation is likely to accumulate inside the motor casing 91, and heat cannot be efficiently dissipated, resulting in problems such as poor heat dissipation effect of the conventional motor 9 at the same time.

The present invention provides a motor for arranging a drive control group outside the motor casing to effectively reduce the volume of the motor casing.

The present invention provides a motor that can be facilitated for quick repair and replacement operations and provides good heat dissipation by a drive control group design disposed outside the motor casing.

The motor of the present invention comprises a motor casing, the motor casing is provided with a stator and a rotor, and a peripheral wall of the motor casing is coupled with a protection box electrically connected to a driving control group for driving the rotor to rotate. The rotor has a rotating shaft that extends to the outside of the motor casing; wherein the driving control group is housed inside the protective casing.

Based on the technical concept of the above motor, the motor of the present invention may also include a motor casing, a stator, a rotor and a drive control group. The stator is coupled to the inside of the motor casing; the rotor includes a rotating shaft and a permanent magnet, the rotating shaft is rotatably coupled to the motor casing, the permanent magnet is coupled to the rotating shaft, and an air gap is provided between the permanent magnet and the stator The drive control group is electrically connected to the stator, and at least one of the components of the drive control group is disposed outside the motor casing.

Wherein, the peripheral wall of the motor casing is provided with a plurality of fixed legs.

An accommodating space is formed between the plurality of fixed legs, and at least one of the components of the driving control group is located in the accommodating space.

The protective box includes a first box body and a second box body, and the first box body and the second box body are coupled to each other.

The driving control group includes a driving circuit and a power module. The driving circuit is electrically connected to the stator, and the power module is electrically connected to the driving circuit.

The driving circuit and the power module of the driving control group are all disposed outside the motor casing.

The driving circuit of the driving control group is disposed inside the motor casing, and the power module is disposed outside the motor casing.

The driving circuit is provided with an electrical pin, and the power module is provided with a connecting port, and the power module is detachably coupled to the electrical pin of the driving circuit.

A through hole is defined between the outer peripheral wall of the motor casing, and the electrical pin of the driving circuit extends through the through hole to the outside of the motor casing.

The motor casing includes a casing and a cover, and the casing and the cover are combined with each other to form the motor casing. One end of the casing is provided with a first pivot hole, and the cover is provided with a second pivoting connection. The first pivoting hole and the second pivoting hole are aligned with each other and have a spacing, and the rotating shaft is rotatably coupled to the first pivoting hole and the second pivoting hole.

Wherein, the motor can be a brushless DC motor.

By designing the drive control group outside the motor casing by the above motor, the volume of the motor casing can be effectively reduced, and the effect of miniaturizing the motor can be achieved; and the maintenance and replacement convenience of the improved drive control group can be achieved, and the drive control can be improved. The heat dissipation effect of the group and the prolonging of its service life.

〔this invention〕

1‧‧‧Motor

11‧‧‧ motor casing

111‧‧‧Fixed stand

112‧‧‧ accommodating space

12‧‧‧ shaft

13‧‧‧Drive Control Group

14‧‧‧protection box

2‧‧‧Motor

21‧‧‧ motor casing

21a‧‧‧Shell

21b‧‧‧ Cover

211‧‧‧First pivot hole

212‧‧‧Second pivot hole

213‧‧‧through hole

214‧‧‧Fixed stand

215‧‧‧ accommodating space

22‧‧‧ Stator

23‧‧‧Rotor

231‧‧‧ shaft

232‧‧‧ permanent magnet

24‧‧‧Drive Control Group

241‧‧‧ drive circuit

241a‧‧‧Electrical pins

242‧‧‧Power Module

242a‧‧‧Connector

25‧‧‧protection box

251‧‧‧First box

252‧‧‧Second box

[study]

9‧‧‧Motor

91‧‧‧ motor casing

92‧‧‧ shaft

Fig. 1 is a perspective view of a conventional motor.

Fig. 2 is a side view of the motor of the first embodiment of the present invention.

Fig. 3 is a side view showing the motor of the first embodiment of the present invention with a protective case.

Fig. 4 is an exploded perspective view showing the motor of the second embodiment of the present invention.

Fig. 5 is a sectional view showing the assembly of a motor according to a second embodiment of the present invention.

The above and other objects, features, and advantages of the present invention will become more apparent and understood.

Referring to FIG. 2, the motor 1 of the first embodiment of the present invention includes a motor casing 11 having a stator and a rotor for driving the rotor to rotate. The rotor has a penetration. A shaft 12 to the outside of the motor casing 11. A drive control group 13 is disposed outside the motor housing 11 , and the drive control group 13 is electrically connected to the stator.

The outer peripheral wall of the motor casing 11 can be provided with a plurality of fixed legs 111, so that the motor 1 of the present invention can be more conveniently erected and fixed at a place such as a working machine or a ground to provide a rotary output power. The accommodating space 112 can be formed with an accommodating space 112. For example, the accommodating space 112 can be the outer peripheral wall of the motor casing 11 and the two fixed legs 111 as shown in FIG. 2 . The space between the ground and the ground (or the working machine surface, etc.), the driving control group 13 can be located in the accommodating space 112; the motor 1 is inevitably formed when the plurality of fixed legs 111 are disposed based on the present invention. The accommodating space 112 can accommodate the drive control group 13 by using the existing space to further reduce the external space that may be additionally occupied by the drive control group 13 disposed outside the motor casing 11.

Referring to FIG. 3, the outer peripheral wall of the motor casing 11 can be combined with a protective casing 14, and the driving control group 13 can be accommodated inside the protective casing 14; thereby providing protection functions such as dustproof or moisture proof. The service life of the drive control group 13 is further increased.

According to the design of the motor 1 of the first embodiment of the present invention, the drive control group 13 is disposed outside the motor casing 11, the drive control group 13 will not occupy the assembly space inside the motor casing 11, and thus can be effectively reduced. The volume of the motor casing 11. Moreover, since the drive control group 13 is located outside the motor casing 11, when the drive control group 13 is to be repaired and replaced, the drive control group 13 can be quickly replaced directly outside the motor casing 11. Moreover, the driving control group 13 located outside the motor casing 11 can effectively dissipate heat by the external airflow, and avoid the high heat generated by the driving control group 13 during the actual operation to accumulate inside the motor casing 11, thereby lifting the driving. The heat dissipation effect of the control group 13.

Based on the technical concept of the motor 1 of the first embodiment, the present invention further discloses a motor of the second embodiment; as shown in FIGS. 4 and 5, the motor 2 of the second embodiment of the present invention includes a motor casing 21 and a stator 22 A rotor 23 and a drive control group 24. The stator 22 is disposed inside the motor casing 21, and the rotor 23 is rotatably coupled to the motor casing 21; the stator 22 is configured to drive the rotor 23 to rotate; at least one of the components of the drive control group 24 is disposed on the motor casing 21 outside.

The motor casing 21 can be various hollow housing structures that can be assembled and assembled by the stator 22 and the rotor 23. The invention is not limited. In this embodiment, the motor casing 21 can include a casing 21a and a cover 21b. The casing 21a and the cover 21b can be combined with each other to form the motor casing 21. The first and second pivoting holes 211 and 212 are respectively disposed on the opposite ends of the motor housing 21, and the first pivoting hole 211 and the second pivoting hole 212 are respectively provided with a bearing; The first pivot hole 211 can be disposed at one end of the cover 21b away from the cover 21b. The second pivot hole 212 can be disposed on the cover 21b. The first pivot hole 211 and the second pivot hole The 212s are mutually aligned and have a spacing for assembly of the rotor 23 described above (see below for details).

A through hole 213 is defined in the outer peripheral wall of the motor casing 21 between the first pivot hole 211 and the second pivot hole 212. The through hole 213 communicates with the inside of the motor casing 21. In this embodiment, the through hole 213 is disposed on the outer peripheral wall of the casing 21a, and the outer peripheral wall of the casing 21a may be provided with a plurality of fixed legs 214, so that the motor 2 of the present invention can be more conveniently erected and fixed. A plurality of accommodating spaces 215 are formed between the plurality of fixed legs 214. The through holes 213 are located in the accommodating space 215 so that the through holes 213 can communicate with the motor casing 21. Between the interior and the accommodating space 215, for assembling the above-mentioned driving control group 24 (for details, follow-up Bright).

The stator 22 is coupled to the motor casing 21, and the stator 22 can be fixed to the inside of the motor casing 21 by means of tight fitting or locking, which is not limited in the present invention.

The rotor 23 includes a rotating shaft 231 and a permanent magnet 232. The rotating shaft 231 is rotatably coupled to the first pivot hole 211 and the second pivot hole 212 of the motor casing 21. The permanent magnet 232 is coupled to the rotating shaft 231. And an air gap between the permanent magnet 232 and the stator 22, the stator 22 can generate an alternating magnetic field through the air gap to drive the rotor 23 to rotate (the detailed driving mode and principle of the stator 22 and the rotor 23) It can be understood by those skilled in the art that the structure of the rotor 23 and the stator 22 can be an inner rotor motor or an outer rotor motor, which is not limited in the present invention.

At least one of the components of the drive control group 24 is disposed outside the motor casing 21. The drive control group 24 is electrically connected to the stator 22. The manner in which the electrical connection is electrically connected is not limited in the present invention. In this embodiment, the driving control group 24 includes a driving circuit 241 and a power module 242; the driving circuit 241 is electrically connected to the stator 22; the power module 242 is electrically connected to the driving circuit 241, and the power module is Group 242 can include, for example, a rectifier circuit, a transformer, or a filter circuit. The power module 242 is configured to supply power to the driving circuit 241. The driving circuit 241 generates a driving signal to the stator 22, so that the stator 22 can drive the rotor 23 to rotate.

The driving circuit 241 and the power module 242 of the driving control group 24 may be all disposed outside the motor casing 21 and may be located in the accommodating space 215 to effectively reduce the volume of the motor casing 21 (in this embodiment) The power module 242 is generally larger than the power module 242, such as a rectifier circuit, a transformer, or a filter circuit. The driving circuit 241, especially when the motor 2 of the present invention is a brushless DC motor, the power module 242 necessarily contains a larger volume of rectifier circuit (such as an AC/DC converter) than a conventional AC motor; Therefore, as in the embodiment shown in FIG. 5, the power module 242 having a larger volume is selected to be placed on the horse. The driving circuit 241 is disposed outside the motor housing 21 so that the driving circuit 241 can be easily disposed close to the stator. 22 is electrically connected, whereby the volume of the motor casing 21 can be reduced.

Moreover, when the power module 242 is disposed outside the motor casing 21, and the driving circuit 241 is disposed inside the motor casing 21, the driving circuit 241 can be provided with an electrical pin 241a, and the electrical pin 241a is The through hole 213 of the motor casing 21 extends into the accommodating space 215. The power module 242 is provided with a connection 242a. The power module 242 is detachably coupled to the driving circuit 241 by the connection 242a. The electrical pins 241a are electrically connected. Thereby, the maintenance and repair operation of the power module 242 of the drive control group 24 is quickly performed outside the motor casing 21.

Moreover, the outer peripheral wall of the motor casing 21 can be combined with a protective casing 25, and the protective casing 25 can include a first casing 251 and a second casing 252. The first casing 251 and the second casing 252 can mutually The power module 242 is integrated into the protection box 25; thereby providing protection functions such as dustproof or moisture proof to improve the service life of the power module 242.

The motor 2 of the second embodiment of the present invention can selectively set the driving circuit 241 and the power module 242 of the driving control group 24 to the outside of the motor casing 21, or select only the power module 242 having a large volume. The motor casing 21 is externally designed and the like, and the driving control group 24 can also avoid occupying too much assembly space inside the motor casing 21. In particular, when the motor 2 is a brushless DC motor, the motor casing can be effectively reduced. 21 volume. Moreover, when the driving circuit 241 is provided with an electrical pin 241a, and the power module 242 is provided with the connection port 242a, the power module 242 can be more easily detached from the driving circuit 241, so that the driving circuit 241 When maintenance and replacement work is required, the maintenance convenience can be greatly improved.

In summary, the motor of the present invention can effectively reduce the volume of the motor casings 11, 21 by setting the drive control groups 13, 24 outside the motor casings 11, 21 to achieve a small motor. The effect of the type. In addition, the maintenance and replacement convenience of the drive control groups 13 and 24 can be improved, and the heat dissipation effect of the drive control groups 13 and 24 can be improved and the service life thereof can be prolonged.

Although the present invention has been disclosed in the above-described preferred embodiments, it is not intended to limit the present invention, and it is still within the spirit and scope of the present invention to make various modifications and modifications to the above embodiments. The technical scope of the protection is created, so the scope of protection of this creation is subject to the definition of the patent application scope attached.

1‧‧‧Motor

11‧‧‧ motor casing

111‧‧‧Fixed stand

112‧‧‧ accommodating space

12‧‧‧ shaft

13‧‧‧Drive Control Group

Claims (14)

A motor includes a motor casing, a stator and a rotor are disposed inside the motor casing, and a casing is coupled to the outer peripheral wall of the motor casing, and the stator is electrically connected to a driving control group for driving the rotor to rotate. The rotor has a rotating shaft that extends to the outside of the motor casing; wherein the drive control group is housed inside the protective casing. The motor of claim 1, wherein the outer peripheral wall of the motor casing is provided with a plurality of fixed legs. The motor of claim 2, wherein an accommodating space is formed between the plurality of fixed legs, and the driving control group is located in the accommodating space. A motor includes: a motor casing, the outer peripheral wall of the motor casing is combined with a protective casing; the stator is coupled to the inside of the motor casing; and a rotor includes a rotating shaft and a permanent magnet, the rotating shaft is rotatably In combination with the motor casing, the permanent magnet is coupled to the rotating shaft, and the permanent magnet has an air gap between the stator and the stator; a driving control group, the driving control group is electrically connected to the stator, and at least the driving control group A component is housed inside the protective case. The motor of claim 4, wherein the outer peripheral wall of the motor casing is provided with a plurality of fixed legs. The motor of claim 5, wherein an accommodating space is formed between the plurality of fixed legs, and at least one of the components of the driving control group is located in the accommodating space. The motor of claim 4, wherein the protection box comprises a first box body and a second box body, and the first box body and the second box body are coupled to each other. The motor of claim 4, 5, 6 or 7 wherein the drive control group comprises a drive circuit and a power module, the drive circuit electrically connecting the stator, the power supply The module is electrically connected to the driving circuit. The motor of claim 8, wherein the drive circuit and the power module of the drive control group are all disposed outside the motor casing. The motor of claim 8, wherein the driving circuit of the driving control group is disposed inside the motor casing, and the power module is disposed outside the motor casing. The motor of claim 10, wherein the driving circuit is provided with an electrical pin, and the power module is provided with a connecting port, and the power module is detachably coupled to the driving circuit by the connecting port Sexual pin. The motor of claim 11, wherein the outer peripheral wall of the motor casing is provided with a through hole, and the electrical pin of the driving circuit extends through the through hole to the outside of the motor casing. The motor of claim 4, 5, 6 or 7 wherein the motor casing comprises a casing and a cover, the casing and the cover are combined to form the motor casing, and the casing is provided at one end. The first pivoting hole and the second pivoting hole are mutually aligned and have a spacing, and the rotating shaft is rotatably coupled to the first pivoting hole. a pivot hole and the second pivot hole. The motor of any one of claims 1, 2, 3, 4, 5, 6 or 7 wherein the motor is a brushless DC motor.