CN219041556U

CN219041556U - High-power bidirectional driving motor and electric covering opening and closing machine using same

Info

Publication number: CN219041556U
Application number: CN202090001156.0U
Authority: CN
Inventors: 郑会永
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-14
Filing date: 2020-10-20
Publication date: 2023-05-16
Anticipated expiration: 2030-10-20
Also published as: KR102282572B1; WO2022014785A1

Abstract

The present utility model relates to a high-power bi-directional driving motor and an electric cover opening/closing machine using the same, and more particularly, to a high-power bi-directional driving motor and an electric cover opening/closing machine using the same, which generate equal forward and reverse driving forces, and which can be braked without a separate braking device by using the same, thereby realizing miniaturization of the electric cover opening/closing machine, and which can extend the product life by adopting a structure capable of preventing rainwater or condensation, and which can facilitate movement or maintenance of a user or a worker by providing a handle portion.

Description

High-power bidirectional driving motor and electric covering opening and closing machine using same

Technical Field

Background

The plastic greenhouse can generally promote the growth of various vegetables and the like, maximize the production efficiency, maintain the internal temperature even in winter where it is difficult to plant vegetables, and preserve the growth conditions of the vegetables, thereby providing a space for sustainable plant cultivation.

In winter, in particular, various heating facilities are additionally provided for actively maintaining the internal temperature, for example, by covering the upper end of the plastic greenhouse with a non-woven fabric or the like to achieve heat preservation. The cover is opened and closed by winding the electric cover opening and closing machine, and the internal temperature of the plastic greenhouse can be controlled according to the opening and closing degree.

On the other hand, the related patents of the conventional electric cover opening/closing machine include: korean laid-open utility model No. 20-2008-0004978 and korean authorized utility model No. 20-0370416. Korean laid-open patent publication No. 20-2008-0004978 discloses a technique capable of improving the production efficiency of a decelerator part and greatly reducing the production cost, and korean laid-open patent publication No. 20-0370416 discloses a technique capable of preventing reverse thrust of an electric blanket opening/closing machine in a state of winding and opening/closing a blanket.

Since the electric cover opening/closing machine having the speed reducer structure as described above requires a lot of technology to improve durability thereof, various efforts are being made to improve strength of the members themselves or to change the coupling structure, as in the above-described prior art.

However, even with such efforts, the degree of improvement in durability is very small, and the maintenance or replacement is of course required due to aging problems caused by long-term use and rain and dew condensation.

However, in the conventional electric cover opening/closing machine, the input part and the output part are combined on both sides based on the gear case, and if the input part or the output part is detached for maintenance, the gears in the gear case are all exposed to the outside, and thus detachment may occur, so that there is a problem in disassembly and assembly due to such structural characteristics.

In addition, the joint surfaces of the input part, the output part and the gear box inevitably form tiny gaps, and water vapor generated by rainwater or condensation enters the interior through the gaps, so that the abrasion of the device is accelerated.

In addition, the existing electric cover opening and closing machine has large area, the space and position of the installation place are limited, and the electric cover opening and closing machine is inconvenient to move during maintenance.

Disclosure of Invention

Technical problem

The present utility model has been made to solve the above-described problems, and an object of the present utility model is to provide a high-power bidirectional drive motor capable of generating equal drive forces in forward and reverse drive.

Further, the present utility model is directed to a high-power bi-directional driving type electric blanket opening/closing machine which is miniaturized in size and is easy to install and maintain.

Further, an object of the present utility model is to provide a high-power bidirectional-drive type electric cover opening/closing machine that can be simply configured without using a separate braking device by using a mechanically braked internal tooth structure.

Further, the present utility model aims to provide a high-power bi-directional driving type electric cover opening/closing machine with improved durability by a waterproof function.

Technical proposal

In order to solve the above problems, a high-power bi-directional drive motor according to the present utility model includes: a field magnet having windings to establish a magnetic field required for a rotation operation in a space where the stator is separated from the rotor; an armature which generates electric power by being rotated by a force as a current flows in a magnetic field formed by the field magnet; a commutator formed on one side of the armature for maintaining a current direction flowing in the coil; and a brush which is in contact with the outer surface of the commutator and supplies power to the commutator, wherein the brush supplies power to the commutator in a state rotated by a predetermined angle in a counterclockwise direction with respect to a magnetic field direction formed by the field magnet winding.

In this case, the present utility model is characterized in that the brush is rotated in the counterclockwise direction by 11.25 ° to 22.5 °.

The high-power bi-directional driving type electric covering opening and closing machine of the utility model is characterized by comprising: an ac motor unit for generating power by external power, the ac motor unit including a field magnet having a winding for creating a magnetic field required for a rotation operation in a space between a stator and a rotor, an armature formed on one side of the armature for maintaining a direction of a current flowing in a coil, a commutator formed on one side of the armature for supplying power to the commutator, and a brush formed on the other side of the armature for rotating the commutator in a counterclockwise direction by a predetermined angle with respect to a direction of the magnetic field formed by the field magnet winding, the armature being forced to rotate to generate power; a gear part formed at one side of the motor part for decelerating the power generated by the motor part; and a winding part formed at one side of the gear part and connected with the gear part, and winding the covering of the facility shed by using the decelerated power.

In this case, the brush is rotated by 11.25 ° to 22.5 ° in the counterclockwise direction.

In the present utility model, the motor unit is composed of a supply gear meshing with the motor unit to receive power, a reduction gear for reducing the power by meshing and driving a plurality of gears composed of different gear ratios, and a main gear for connecting the supply gear and the reduction gear.

The high-power bi-directional driving type electric cover opening/closing machine according to the present utility model further includes a seal ring disposed between the gear portion and the winding portion and formed along the circumference of the reduction gear to prevent rainwater or condensation.

The high-power bi-directional driving type electric covering opening/closing machine according to the present utility model further includes a handle portion attached to an outer surface side of the gear portion so that a user can easily hold the machine when moving or maintaining the machine.

ADVANTAGEOUS EFFECTS OF INVENTION

As can be fully understood from the above description, the present utility model has an advantage that the motor can generate equal driving force at the time of forward and reverse driving.

In addition, the utility model has the advantage of easy installation and maintenance by miniaturization.

Furthermore, the present utility model has an advantage that a simple configuration can be achieved without a separate braking device by employing a mechanically braked internal tooth structure.

In addition, the present utility model has the advantage that durability can be improved by the waterproof function.

Drawings

Fig. 1 shows a conventional motor configuration.

Fig. 2 shows a configuration of a high-power bi-directional driving motor according to an embodiment of the present utility model.

Fig. 3 is a perspective view of a high-power bi-directional driving type electric covering opening and closing machine according to an embodiment of the present utility model.

Fig. 4 is a combined cross-sectional view of a high-power bi-directional driving type electric blanket opener in accordance with an embodiment of the present utility model.

Fig. 5 is an exploded cross-sectional view of a high-power bi-directional driving type electric blanket opener in accordance with an embodiment of the present utility model.

Description of the reference numerals

100: motor with a motor housing

110: the field magnet 111: field magnet winding

120: armature

130: coil

140: commutator device

150: electric brush

160: shaft

200: electric covering opening and closing machine

210: AC motor unit

211: motor plate 212: motor cover

220: gear part

221: gear body 222: front cover

223: back cover 224: partition board

225: supply gear 226: reduction gear

226-1: fixed internal gear 226-2: rotary internal gear

226-3: bevel gear 227: main gear

228: storage space

230: winding part

Detailed Description

Hereinafter, specific embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

Fig. 2 shows a configuration of a high-power bi-directional driving motor according to an embodiment of the present utility model, fig. 3 is a perspective view of a high-power bi-directional driving type electric blanket opener according to an embodiment of the present utility model, fig. 4 is a combined sectional view of the high-power bi-directional driving type electric blanket opener according to an embodiment of the present utility model, and fig. 5 is an exploded sectional view of the high-power bi-directional driving type electric blanket opener according to an embodiment of the present utility model.

Referring to fig. 2, the high-power bi-directional driving motor 100 of the present utility model includes: a field magnet 110 having windings to establish a magnetic field required for a rotation operation in a space where the stator is separated from the rotor; an armature 120 which generates electric power by being rotated by a force as an electric current flows in a magnetic field formed by the field magnet 110; a commutator 140 formed at one side of the armature 120 for maintaining a current direction flowing in the coil 130; and a brush 150 that is in contact with the outer surface of the commutator 140 and supplies power thereto, and supplies power to the commutator 140 in a state rotated counterclockwise by a predetermined angle with respect to the direction of the magnetic field formed by the field magnet winding 111 with respect to the vertical direction.

The basic structure of the motor 100 described above is similar to that of a conventional motor (refer to fig. 1). The stationary part of the motor is often called the stator (stator), the rotating part is called the rotor (rotor), the stator is often located on the outside and the rotor on the inside.

Typically, the unidirectional motor (or motor) is configured as follows: an axis 160 is formed in the middle, and an armature 120 (armature) is formed centering around the axis, and the armature 120 is used to house a winding (or armature 120 winding) that mainly operates in the electric device. The armature 120 cuts off the magnetic flux generated by the field magnet 110 and generates torque according to fleming's left hand rule. When power is supplied to the motor (or motor), the motor (or motor) rotates, and the armature 120 is the place where the current of the power supply flows.

A commutator 140 (communicator) for receiving electric power is formed on one side of the armature 120. The commutator 140 is a device for periodically changing the direction of current to rotate in a predetermined direction in a dc or ac commutator 140 motor or the like.

And, two brushes 150 (brushes) are formed in contact with the commutator 140. The brush 150 is a conductor that functions as a contactor when connecting a rotor and a stationary part (stator, etc.) in a motor, a generator, or the like.

In addition, bearings may be provided on both sides of the shaft as needed to facilitate rotation.

Further, a field magnet 110 (field magnet) is formed by partially surrounding the above-described armature 120. The field magnet 110 is responsible for generating magnetic flux, and interacts with the armature 120 to construct a magnetic circuit, and the armature 120 obtains rotational force by receiving the magnetic flux generated by the field magnet 110. Since only the required magnetic flux needs to be generated, less current flows than the armature 120, and a permanent magnet or an electromagnet is used to generate the magnetic flux. When using permanent magnets, magnetic flux is generated without a separate winding, but it may be difficult to control the speed due to the inability to control the magnetic flux.

The motor 100 configured as above generates power by rotating when power is supplied. In this case, if power is supplied in the reverse direction during operation in order to reversely rotate the motor 100, the motor 100 continues to rotate in the original rotation direction, and the reverse rotation is enabled only when power is supplied in the reverse direction in a state where the motor 100 is completely stopped. In this case, even if the motor is rotatable, spark is generated, and the life of the motor 100 is shortened.

Accordingly, in order to solve the above-described problems, the present utility model changes the power feeding direction of the brush 150 for feeding power to the commutator 140 in the conventionally used unidirectional rotation motor 100, thereby forming a motor 100 capable of bidirectional rotation.

In an embodiment of the present utility model, the brush 150 for supplying power to the commutator 140 is disposed to supply power to the commutator 140 in a state rotated by a predetermined angle with respect to the magnetic field direction formed by the field magnet winding 111, and more specifically, the brush 150 supplies power to the commutator 140 in a state rotated by a predetermined angle with respect to the magnetic field direction formed by the field magnet winding 111 in a counterclockwise direction with respect to the vertical direction.

As described above, when the brush 150 is supplied with power in a direction perpendicular to the direction of the magnetic field formed by the field magnet winding 111, the maximum force can be exerted during forward driving, but the force cannot be generated during reverse driving, spark is generated during driving, the life of the motor 100 is shortened, and the motor 100 needs to be replaced. Therefore, when the brush 150 is energized in a direction perpendicular to the direction of the magnetic field formed by the field magnet winding 111, the forces of the forward and reverse driving are unbalanced.

In an embodiment of the present utility model, when the brush 150 is not supplied with power in a direction perpendicular to the direction of the magnetic field formed by the field magnet winding 111, but is supplied with power to the commutator 140 in a state rotated counterclockwise by a predetermined angle with respect to the perpendicular direction, the motor 100 does not have a problem of spark generation or the like not only in the forward direction but also in the reverse direction, and can stably generate power. In addition, the power generated during forward and reverse driving is almost equal.

In one embodiment of the present utility model, most preferably, the brush 150 is rotated in a counterclockwise direction by 11.25 ° to 22.5 ° with respect to the direction of the magnetic field formed by the field magnet winding 111.

Accordingly, the present utility model can avoid the problems of the prior art, that is, the reduction of the life of the motor 100 due to spark generation during reverse rotation, and can generate equal power during forward and reverse driving.

Referring to fig. 3 to 5, the high-power bi-directional driving type electric blanket opening and closing machine 200 of the present utility model includes: an ac motor unit 210 for generating power by external power, the ac motor unit including a field magnet 110, an armature 120, a commutator 140, and a brush 150, the field magnet 110 having a winding for creating a magnetic field required for a rotation operation in a space between a stator and a rotor, the armature 120 being forced to rotate to generate power as a current flows in the magnetic field formed by the field magnet 110, the commutator 140 being formed on one side of the armature 120 for maintaining a direction of the current flowing in the coil 130, the brush 150 being in contact with an outer surface of the commutator 140 and supplying power thereto, and supplying power to the commutator 140 in a state rotated counterclockwise by a predetermined angle with respect to a direction of the magnetic field formed by the field magnet winding 111 with reference to a vertical direction; a gear unit 220 formed on one side of the ac motor unit 210, for decelerating the power generated by the ac motor unit 210; and a winding part 230 formed at one side of the gear part 220 and connected to the gear part 220, for winding the covering of the facility shed using the decelerated power.

The ac motor 210 is configured to receive electric power from the outside to generate power and wind up the cover using the generated power, and it is preferable to use the ac motor 210 that rotates in both directions in order to wind up the cover for covering or stowing. Such an ac motor unit 210 includes: a motor 100 driven by external power; a motor plate 211 coupled to the front surface of the motor 100, and coupling the motor 100 to one side of the gear part 220; and a motor cover 212 to protect the motor 100 from external factors.

The details regarding the motor 100 described above will be replaced by the description of the motor 100 described above.

Further, in an embodiment of the present utility model, for driving as above, a general motor is used. Compared with a conventional common direct current (AC) motor or alternating current (DC) motor, the electric cover opening/closing machine 200 can exert larger power and has smaller size, and is easy to miniaturize.

The motor plate 211 is provided with a hole fastened to the gear portion 220 and a hole fastened to the motor 100, respectively, and the motor 100 can be separated alone in a state where the motor plate 211 is fastened to the gear portion 220. Therefore, not only is it easy to repair or replace the motor 100, but also, since the gear part 220 can be repaired in a state where the motor 100 is safely separated, it is convenient to repair or replace.

The gear part 220 rotates in a state that a plurality of gears therein are engaged with each other. The gears rotate by receiving the power supplied from the ac motor 210, and perform operations such as decelerating or stopping the power according to a predetermined condition.

The gear part 220 has an external shape that can be installed in a plastic greenhouse, and includes: a gear body 221 having a storage space 228 formed therein, in which a plurality of gears can be stored; a front cover 222 disposed on the front of the gear body 221 to isolate the front of the storage space 228 from the outside; the back cover 223 is provided on the back of the gear body 221 to isolate the back of the storage space 228 from the outside.

On the other hand, the gear body 221 has a partition 224 formed therein, and divides a space for housing the gear into front and rear portions, and one side of the space partitioned by the partition 224 serves as a supply unit for receiving the power transmitted from the ac motor unit 210, and the other side serves as a reduction unit for reducing the power supplied.

The back cover 223 is tightly coupled to the back surface of the ac motor 210 (or the motor plate 211), and a seal ring 240 is inserted along the circumference of the supply part, so that the gear is prevented from being corroded by external rainwater or condensation penetrating into the supply part.

The gear part 220 includes: a supply gear 225 that receives power of the motor 100 in the gear body 221 at first; a reduction gear 226 for reducing the power; and a main gear 227 connected to the supply gear 225 and the reduction gear 226.

The supply gear 225 is disposed near the motor 100 to receive power from the motor 100.

The reduction gear 226 includes: an internal gear arranged at two positions of the inner periphery of the speed reducing part; and a plurality of helical gears 226-3 that rotate with the teeth of the inner gear. The internal gear is provided in the reduction portion and is composed of a fixed internal gear 226-1 and a rotary internal gear 226-2. The fixed type internal gear 226-1 is fixed to the reduction part, and guides smooth rotation of the helical gear 226-3, and the rotary type internal gear 226-2 is configured to rotate together with the helical gear 226-3 in a state of being closely disposed on the front surface of the fixed type internal gear 226-1.

By dividing the fixed type internal gear 226-1 and the rotary type internal gear 226-2 as described above, and according to the operation of a user, a brake shaft (not shown) for fixing the fixed type internal gear 226-1 is brought into the rotary type internal gear 226-2, the rotation of the rotary type internal gear 226-2 is prevented, thereby functioning as a mechanical brake device for stopping the device from operating.

In particular, the front cover 222, which is one of the most important features of the present utility model, is provided in the cross section of the rotary-type internal gear 226-2. When the front cover 222 is provided to the rotary internal gear 226-2 in a shape corresponding to the inner space of the reduction part, the inner space of the reduction part can be completely shielded from the outside.

Since the front cover 222 is provided at the forefront of the reduction gear 226 in the gear unit 220, even if the winding unit 230 is removed from the gear unit 220 by maintenance or replacement, the reduction gear 226 can be prevented from being separated by the front cover 222, and rainwater or dew condensation can be prevented from entering the reduction gear unit.

Therefore, the front cover 222 allows the winding portion 230 to be freely separated from the gear portion 220, and is easy to repair and replace.

The winding part 230 is formed at one side of the gear part 220 and connected to the gear part 220, and winds the covering of the facility shed using the decelerated power. Such facility sheds include plastic sheds, gardening facilities, animal houses, etc., and all facilities using covers to block sunlight or prevent heat loss, etc. may be included in the facility shed.

The electric cover shutter 200 may be used not only for the outside of a facility shed but also for an inner cover shutter. Further, a support bar or a roller may be attached to one side of the gear body 221, and the electric cover opening/closing machine 200 may be moved in a vertical direction to open and close a cover provided on a side surface of a facility shed.

The winding part 230 includes: a winding rod (not shown) for winding the cover; a spline 231 connecting the front cover 222 and the winding rod; and a winding body 232 having the spline 231 disposed on the front surface of the working section.

By inserting the sealing ring 240 along the joint surface between the winding body 232 and the gear part 220, the penetration of external rainwater or dew condensation is prevented, and thus the inner space of the gear part 220 can be waterproofed. However, this is not limited to the seal ring, and water may be prevented by using an oil seal, a gasket, or the like as necessary.

By further inserting a spacer (not shown) into the end of the receiving spline 231 of the winding body 232, rainwater or condensation can be prevented from penetrating, and the inner space of the gear part 220 can be water-proof, similarly to the seal ring 240. However, this is not limited to the gasket, and the gasket or the oil seal may be used to prevent water if necessary.

In addition, the present utility model may further include a handle part 250 attached to one side of the outer surface of the gear part 220 so that a user can easily hold the handle part 250 during movement or maintenance, and thus, the user can hold the handle part 250 during movement or maintenance.

In an embodiment of the present utility model constructed as above, the motor 100 is reduced in size by using the unidirectional rotation motor for bidirectional driving, and a separate braking device is not required, thereby achieving miniaturization of the electric blanket opening and closing machine 200, and thus facilitating installation and maintenance.

Further, by inserting the seal ring 240 between the ac motor unit 210 and the gear unit 220 and between the gear unit 220 and the winding unit 230, each joint surface can be formed with a waterproof function, and corrosion, abrasion, and the like can be positively prevented, thereby extending the product life.

As described above, the present utility model has been described in detail using the preferred embodiments, but the scope of the present utility model is not limited to the specific embodiments but should be construed according to the scope of the appended claims. And, those skilled in the art can implement various modifications of the present utility model without departing from the scope and spirit of the present utility model.

Industrial applicability

The utility model can brake without a separate brake device by using the motor to realize miniaturization of the electric covering opening and closing machine by generating equal forward and reverse driving force by the high-power bidirectional driving motor, prolongs the service life of the product by adopting a structure capable of preventing rainwater or dew, and is convenient for users or staff to move or maintain by providing the handle part, thereby having huge industrial availability.

Claims

1. A high power bi-directional drive motor, comprising:

a field magnet having windings to establish a magnetic field required for a rotation operation in a space where the stator is separated from the rotor;

an armature which generates electric power by being rotated by a force as a current flows in a magnetic field formed by the field magnet;

a commutator formed on one side of the armature for maintaining a direction of a current flowing in the coil; and

and a brush which is in contact with the outer surface of the commutator and supplies power to the commutator, wherein the brush is rotated counterclockwise by a predetermined angle with respect to the direction of the magnetic field formed by the field magnet winding, and supplies power to the commutator.

2. The high power bi-directional drive motor of claim 1 wherein said brushes are rotated in a counter-clockwise direction by 11.25 ° to 22.5 °.

3. A high power bi-directional drive electric blanket opener, comprising:

an ac motor unit for generating power by external power, the ac motor unit including a field magnet having a winding for creating a magnetic field required for a rotation operation in a space between a stator and a rotor, an armature formed on one side of the armature for maintaining a direction of a current flowing in a coil, a commutator formed on one side of the armature for supplying power to the commutator, and a brush formed on the other side of the armature for rotating the commutator in a counterclockwise direction by a predetermined angle with respect to a direction of the magnetic field formed by the field magnet winding, the armature being forced to rotate to generate power;

a gear part formed at one side of the motor part for decelerating the power generated by the motor part; and

and a winding part formed at one side of the gear part and connected with the gear part, and winding the covering of the facility shed by using the decelerated power.

4. The high-power bi-directional driving type electric blanket opener according to claim 3, wherein the brush is rotated in a counterclockwise direction by 11.25 ° to 22.5 °.

5. The high-power bi-directional driving type electric blanket opening and closing machine according to claim 3, wherein the motor part is composed of a supply gear engaged with the motor part to receive power, a reduction gear for reducing power by engaging and driving a plurality of gears composed of different transmission ratios, and a main gear for connecting the supply gear and the reduction gear.

6. The high-power bi-directional driving type electric blanket opening and closing machine according to claim 3, further comprising any one of a gasket, an oil seal, or a gasket, which is positioned between the gear part and the winding part, and between the gear part and the motor part, to prevent rainwater or dew.

7. The high-power bi-directional driving type electric blanket opening and closing machine according to any one of claims 3 to 6, further comprising a handle portion attached to an outer surface side of the gear portion so as to be easily held by a user when moving or repairing.