CN211377829U

CN211377829U - Driving motor for heavy-load coreless cup

Info

Publication number: CN211377829U
Application number: CN201922355747.XU
Authority: CN
Inventors: 席志兴; 刘永学
Original assignee: Nidec Servo Changzhou Corp
Current assignee: Nidco Antesa Electric Motor Changzhou Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-08-28
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a heavy load is driving motor for coreless relates to coreless motor field, which comprises a bod, one side of organism is connected with the back lid, the intermediate position department of organism both sides all is connected with the bearing, and the inside intermediate position department of organism is connected with the pivot through the bearing rotation, the inboard of organism is provided with stator core, stator core's outside winding has the coil. The utility model discloses a motor is the brushless DC motor structure, it is more efficient, the life-span is longer, can realize positive and negative direction rotation, and the back lid outside install with coil electric connection's hot protector, the normal during operation of motor, hot protector's bimetallic strip is in free state, contact department is in the closure state, when the temperature risees to the action temperature value, hot protector's bimetallic element is heated and is produced the internal stress and move rapidly, open the contact, the cut-off circuit to can play the thermal protection effect to the motor, the security is high.

Description

Driving motor for heavy-load coreless cup

Technical Field

The utility model relates to a coreless motor field specifically is a drive motor for heavy load coreless.

Background

The coreless motor belongs to a direct-current permanent magnet servo and control motor, and can be classified into a micro special motor, and the coreless motor has the advantages of outstanding energy-saving property, sensitive and convenient control property and stable operation property, and the technical advancement is very obvious. As a high-efficiency energy conversion device, a development direction of a motor is represented in many fields.

The existing coreless motor has low working efficiency and short service life, and the heat generated by the motor in long-time working can damage the internal elements of the motor, so that the safety is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the working efficiency of the existing coreless motor is low, the service life is short, the internal elements of the motor can be damaged by heat generated by the motor in long-time working, and the safety is low, the driving motor for the heavy-load coreless motor is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a driving motor for a heavy-load coreless cup comprises a machine body, wherein one side of the machine body is connected with a rear cover, the middle positions of the two sides of the machine body are both connected with bearings, the middle position inside the machine body is rotatably connected with a rotating shaft through the bearings, a stator core is arranged on the inner side of the machine body, a coil is wound on the outer side of the stator core, a rotor core corresponding to the stator core is arranged on the outer side of the rotating shaft, a magnet is arranged on the outer side of the rotor core, a slot insulator is arranged on one side of the stator core inside the machine body, the other side of the slot insulator is connected with a circuit board, a sensor magnet is arranged on the inner side of the circuit board outside the rotating shaft, a fourth connector is arranged at the bottom end inside the rear cover and is respectively connected with a first wire, a second wire and a third wire, and a thermal protector electrically connected with the coil is arranged on the outer side of the rear cover.

Preferably, the outer side of the first lead and the outer side of the second lead are both provided with outer tubes, and nylon cable ties are fastened on the outer sides of the outer tubes.

Preferably, four groups of connecting blocks corresponding to each other are arranged between the machine body and the rear cover, and the machine body and the rear cover are connected through four groups of bolts.

Preferably, the circuit board is connected with the slot insulator through screws.

Preferably, a first connector is connected to a terminal of the first wire, a second connector is connected to a terminal of the second wire, and a third connector is connected to a terminal of the third wire.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a motor is the brushless DC motor structure, it is more efficient, the life-span is longer, can realize positive and negative direction rotation, and the back lid outside install with coil electric connection's hot protector, the normal during operation of motor, hot protector's bimetallic strip is in free state, contact department is in the closure state, when the temperature risees to the action temperature value, hot protector's bimetallic element is heated and is produced the internal stress and move rapidly, open the contact, the cut-off circuit to can play the thermal protection effect to the motor, the security is high.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a side view of the present invention.

In the figure: 1. a body; 2. a rear cover; 3. a bearing; 4. a rotating shaft; 5. a stator core; 6. a coil; 7. a rotor core; 8. a magnet; 9. insulating the groove; 10. a circuit board; 11. a sensor magnet; 12. a fourth connector; 13. a thermal protector; 14. a first conductive line; 15. a second conductive line; 16. a third conductive line; 17. a first connector; 18. a second connector; 19. a third connector; 20. an outer tube; 21. a nylon cable tie.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The thermal protector (model: ksd9700) mentioned in the utility model can be obtained by market or private ordering.

Referring to fig. 1-2, a driving motor for a heavy-load coreless cup includes a machine body 1, a rear cover 2 is connected to one side of the machine body 1, bearings 3 are connected to intermediate positions of two sides of the machine body 1, a rotating shaft 4 is rotatably connected to an intermediate position inside the machine body 1 through the bearings 3, a stator core 5 is disposed inside the machine body 1, a coil 6 is wound on an outer side of the stator core 5, a rotor core 7 corresponding to the stator core 5 is disposed on an outer side of the rotating shaft 4, a magnet 8 is disposed on an outer side of the rotor core 7, a slot insulator 9 is disposed on one side of the stator core 5 inside the machine body 1, another side of the slot insulator 9 is connected to a circuit board 10, a sensor magnet 11 is disposed on an inner side of the circuit board 10 outside the rotating shaft 4, a fourth connector 12 is disposed at a bottom end inside the rear cover 2, and the fourth connector 12 is respectively, The second lead 15 and the third lead 16, and the thermal protector 13 electrically connected with the coil 6 are arranged on the outer side of the rear cover 2.

The utility model discloses a motor is the brushless DC motor structure, it is more efficient, the life-span is longer, can realize positive and negative direction rotation, and 2 outsides of back lid install with 6 electric connection's of coil heat protector 13, the motor is normal during operation, heat protector 13's bimetallic strip is in free state, contact department is in the closure state, when the temperature risees to the action temperature value, heat protector 13's bimetallic element is heated and produces the internal stress and moves rapidly, open the contact, the circuit breaker, thereby can play the thermal protection effect to the motor.

Please refer to fig. 2, the outer tubes 20 are disposed outside the first wires 14 and the second wires 15, nylon bands 21 are fastened outside the outer tubes 20, the outer tubes 20 are disposed outside the two sets of wires to perform an insulating function, and the nylon bands 21 are disposed to fasten the outer tubes 20 and the wires.

Please refer to fig. 2, four sets of corresponding connecting blocks are disposed between the machine body 1 and the rear cover 2, and the machine body 1 and the rear cover 2 are connected by four sets of bolts, so that the machine body 1 can be disassembled and maintained for the elements inside the machine body 1.

Referring to fig. 1, the circuit board 10 is connected to the slot insulator 9 by screws, so that the circuit board 10 can be easily removed for maintenance.

Please refer to fig. 2, the end of the first wire 14 is connected to a first connector 17, the end of the second wire 15 is connected to a second connector 18, and the end of the third wire 16 is connected to a third connector 19, so as to facilitate connection with an external terminal.

The working principle is as follows: after the power is switched on, current is introduced to two groups of corresponding coils, the electromagnetic principle is utilized to enable two ends of a stator core 5 to generate magnetic poles which are respectively an N pole and an S pole, a magnet 8 is arranged on the outer side of a rotor core 7, the two ends of the magnet 8 are provided with the magnetic poles, the rotor core 7 rotates according to the mutual attraction of the different poles, a sensor magnet 11 is arranged on a circuit board 10, the sensor magnet 11 detects a position signal of the rotor core 7 through the Hall effect, the signal is transmitted to the circuit board 10 after being changed, then the control element on the circuit board 10 is utilized to control the energization of the two groups of different corresponding coils, the stator core 5 generates corresponding magnetic poles at different positions, thereby the rotor core 7 rotates, the two groups of controllers are utilized to control the current direction in the coils, the magnetic pole direction can be changed, and the position of the rotor core 7 is detected by the sensor magnet 11, therefore, the motor is reversely rotated, when the motor works normally, the bimetallic strip of the thermal protector 13 is in a free state, the contacts are in a closed state, when the temperature rises to an action temperature value, the bimetallic element of the thermal protector 13 is heated to generate internal stress to act rapidly, the contacts are opened, a circuit is cut off, and therefore the thermal protection effect is achieved on the motor.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a drive motor for heavy load coreless, includes organism (1), its characterized in that: one side of the machine body (1) is connected with a rear cover (2), the middle positions of the two sides of the machine body (1) are connected with bearings (3), the middle position inside the machine body (1) is rotatably connected with a rotating shaft (4) through the bearings (3), a stator core (5) is arranged on the inner side of the machine body (1), a coil (6) is wound on the outer side of the stator core (5), a rotor core (7) corresponding to the stator core (5) is arranged on the outer side of the rotating shaft (4), a magnet (8) is arranged on the outer side of the rotor core (7), a slot insulator (9) is arranged on one side of the stator core (5) inside the machine body (1), the other side of the slot insulator (9) is connected with a circuit board (10), and a sensor magnet (11) is arranged on the inner side of the circuit board (10) outside the rotating, the inside bottom of back lid (2) is provided with fourth connector (12), fourth connector (12) are connected with first wire (14), second wire (15) and third wire (16) that extend to organism (1) outside respectively, the outside of back lid (2) is provided with hot protector (13) with coil (6) electric connection.

2. A drive motor for a heavy-duty coreless cup as recited in claim 1, wherein: the outer sides of the first lead (14) and the second lead (15) are both provided with outer tubes (20), and nylon ties (21) are fastened on the outer sides of the outer tubes (20).

3. A drive motor for a heavy-duty coreless cup as recited in claim 1, wherein: four groups of connecting blocks which correspond to each other are arranged between the machine body (1) and the rear cover (2), and the machine body (1) is connected with the rear cover (2) through four groups of bolts.

4. A drive motor for a heavy-duty coreless cup as recited in claim 1, wherein: the circuit board (10) is connected with the slot insulator (9) through screws.

5. A drive motor for a heavy-duty coreless cup as recited in claim 1, wherein: the tail end of the first lead (14) is connected with a first connector (17), the tail end of the second lead (15) is connected with a second connector (18), and the tail end of the third lead (16) is connected with a third connector (19).