JP5647330B1 - Circulator - Google Patents

Abstract

A circulator using two synchronous motors having the same specification as a motor for swinging up and down and swinging left and right is provided. A circulator having a vertical swing motor 14 inside a fan section 1 and a horizontal swing motor 13 inside a base section 3, wherein the circulator has a vertical swing and a horizontal swing. In the case of simultaneous swinging, the rotation of either one of the swinging motors 13 or 14 is temporarily stopped. [Selection] Figure 5

Description

  The present invention relates to a circulator that is placed on a floor or a table and stirs air to uniformize the temperature of the room, and more particularly to a circulator having a swing function in the left and right and up and down directions.

  In recent years, in order to surpass the heat of summer and the cold of winter from the viewpoint of energy saving, not only air-conditioning equipment such as air conditioners but also air agitation by a fan or a circulator has been increasingly used. By using them, air can be circulated and stirred in a short time, and a comfortable indoor environment can be quickly obtained. Furthermore, in order to enhance the agitation effect, not only the conventional left and right swing function but also the one with the upper and lower swing functions has been marketed, so that it is possible to circulate air evenly in a shorter time. It is coming.

To perform left and right swing and vertical swing (Tatekubi swing), it is common to use two oscillating motor. As a motor for swinging, it is required to be small in size so that it can be accommodated in the product, and a synchronous motor or a stepping motor is usually used. However, since it is easy to handle and inexpensive, many synchronous motors are used. It is used.

  Therefore, in order to simultaneously perform the left and right swing and the vertical swing using an inexpensive synchronous motor, when two identical synchronous motors are used, without causing the desired random swing motion, A linear movement (see arrow AA in FIG. 3) may occur. The reason for this is that the synchronous motor is a motor that rotates in synchronization with the AC (alternating current) frequency, so that the two motor drive signals synchronize and cause a malfunction.

  In order to prevent the above malfunction due to the use of two identical synchronous motors, either the method of changing the motor gear ratio of one synchronous motor or the power source used was once converted from AC (alternating current) to DC (direct current). A method of driving the motor at a different AC frequency by performing inverter control can be considered. However, if the motor gear ratio of one synchronous motor is changed, it is necessary to stock two types of motors, which complicates production management and causes a cost increase. In addition, since it is necessary to add a control circuit in order to perform DC conversion, it is desirable to use the same synchronous motor basically.

  Patent Document 1 discloses a fan that can simultaneously swing left and right and swing up and down, but it is unclear what motor is actually used. Similarly, Patent Document 2 describes that a left-right swing and a vertical swing can be performed at the same time, and that the motor uses a synchronous motor, but details of the motor specifications are unknown. In Patent Document 2, when a user presses a stop switch at a certain left and right swing point, the left and right swing operation is stopped, only the vertical swing operation is performed for a predetermined time, and the user is preferentially blown. It is disclosed.

Japanese Patent Publication No. 64-8197 JP-A-6-93996

  As described above, in Patent Document 1 and Patent Document 2, the motor used is not described, and it is unclear what kind of swinging motion is actually shown.

The present invention has been made in view of the above problems, the left and right swing and vertical swing is a co-capable circulator, even using the same synchronous motor as the swing motor of the synchronous motor An inexpensive and easy-to-use circulator capable of preventing malfunction and making the temperature of the entire room uniform can be provided.

In order to solve the above problems, in the invention of claim 1, a circulator capable of simultaneously swinging left and right and vertically swinging,
Use the same specification synchronous motor as the motor for swinging left and right and swinging up and down,
While the rotation of one of the synchronous motors is continuously rotating, the rotation of the other synchronous motor is intermittently performed at a time interval in which the phase of the rotation cycle deviates from the phase of the rotation cycle of the one synchronous motor. It is characterized by being temporarily stopped.

  The invention according to claim 2 is characterized in that the pause of the rotation of the other synchronous motor is repeated at regular intervals.

  The invention according to claim 3 is characterized in that the time for the temporary stop is 0.3 to less than 1 second.

  The invention according to claim 4 is characterized in that the rotation of the synchronous motor for swinging up and down is temporarily stopped.

  According to a fifth aspect of the invention, the synchronous motors having the same specifications have the same motor gear ratio and the same rotational frequency.

  According to the present invention, as described above, a synchronous motor of the same specification is used as a motor for swinging left and right and swinging up and down, even if the rotation of either one of the synchronous motors is continuously rotating, Since the rotation of the other synchronous motor is intermittently temporarily stopped, the two motors can be prevented from malfunctioning in synchronization. Accordingly, it is possible to easily achieve random swinging by simultaneous swinging left and right and up and down.

  According to the present invention, as described above, the rotation is repeatedly paused at regular intervals. Therefore, the control is simple, and even if two motors malfunction, the synchronization is easily removed thereafter. Can be easily restored to random swing.

  According to the present invention, as described above, since the pause time is as short as 0.3 to less than 1 second, it does not seem that the swinging motion of the electric fan is stopped, and gives a strange feeling to the user. There is nothing.

  According to the present invention, as described above, the synchronous motor for swinging up and down is temporarily stopped during rotation. Therefore, even when a synchronous motor that can rotate in both directions is used, the rotation direction is reversed after stopping. Even if it becomes, it can be made hard to notice that the advancing direction of the swing was reversed to the user.

  According to the present invention, as described above, the synchronous motors having the same specifications have the same motor gear ratio and the same rotational frequency. Therefore, it is possible to reduce the cost of the motor by mass purchase, motor inventory, etc. Production management becomes simple.

It is a front perspective view of the circulator which concerns on this invention. It is a back perspective view of the circulator which concerns on this invention. It is a front view of the circulator which concerns on this invention. It is ZZ sectional drawing of FIG. It is a model diagram which shows the rotation period of two synchronous motors.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIGS. 1 to 4 show a front perspective view, a rear perspective view, a front view, and a cross-sectional view of a circulator 100 according to the present invention. The fan unit 1 includes a fan 11, a fan motor 12, The vertical swing motor 14 and its drive mechanism (not shown) are provided with a carrying part 10 for carrying outside and a disk-like base part 3 at the bottom, with a single leg shape between them. The fan part 1 and the base part 3 are integrated via the leg part 2.

  Further, a motor 13 and a drive function 130 for swinging left and right are provided inside the base unit 3, and a main switch 6, a switch for swinging left and right, a switch 8 for swinging up and down, a timer unit 9 and the like are provided outside. It has the operation part.

  The outer surface of the fan unit 1 is formed of a synthetic resin material such as polypropylene, and the outer shape thereof is formed in a substantially drum shape. The front panel 4 is attached to the front side, and the air sucked from the rear panel 5 side. It is designed to generate a whirlwind efficiently and send it as far as possible. Specifically, the front panel 4 has a spiral rib 4a so that the wind generated by the fan 11 provided inside is vigorously emitted. In FIG. 4, the front panel 4, the rear panel 5, and the grip portion 10 are omitted.

  As the motor 12 for rotating the fan 11 provided in the fan unit 1, a normal fan motor can be used. In the present application, a general AC capacitor motor is used.

  As the two motors (synchronous motors 13 and 14) for swinging shown in FIG. 4, model number SR48, bi-directional, AC100V, 50/60 Hz manufactured by Nidec Servo Co., Ltd. was used. As the left and right swing mechanism 130 and the vertical swing mechanism, the rotational motion of the motor is converted into a reciprocating motion using a general eccentric cam and a link mechanism.

  It is ideal that the left and right and up and down simultaneous swing operations are random, but when used as two synchronous motors of the same specification, as described above, the two rotation cycles are synchronized and malfunctions. A phenomenon occurs (see FIG. 3). Therefore, as shown in the schematic diagram of FIG. 5, the control is performed on the circuit side to stop the motor during the motor rotation at regular intervals (intermittently) as shown in the schematic diagram of FIG. A phase shift is generated so that the cycles of the eggplant motor do not overlap.

Specifically, one of the swing motor is allowed to continuously operated, the motor for the other swing, the reciprocating oscillating motion by rotating twice by to stop 0.5 sec, and removing the rotation period of the two oscillating motor. In this embodiment, since the motor swing period is 20 seconds in the low air volume mode, a stop of 0.5 seconds is entered every 40 seconds.

The interval at which the rotation is stopped may be an interval that is difficult for the human eye to recognize, and may be set to a time interval in which the two phases are shifted. If it exceeds 1 second, it becomes clear that the swinging motor is not rotating, which gives the user a strange misunderstanding as if it is malfunctioning. If the interval is shorter than 0.3 seconds, the control microcomputer (not shown) accepts other control commands after the rotation of the swing motor stops, and the rotation of the swing motor resumes without stopping. This is because there is something to do.
Further, as a method for stopping the rotation, a timer IC or the like may be used, and this can be easily handled on the control circuit.

  Furthermore, although the rotation direction of the synchronous motor used this time is a bidirectional specification, if it stops once in the middle of rotation, it may start moving in the direction opposite to the swinging direction that has been advanced so far. As a countermeasure, the swing direction for stopping the swing is the vertical direction. The reason is that the vertical direction is less likely to visually sense a change in movement than the horizontal direction. As a result, the range of specifications of the synchronous motor that can be mounted can be expanded not only in one direction but also in both directions.

  The content described above describes one mode for carrying out the invention, and is not limited to the above embodiment. For example, the case where the left and right swing motor is provided in the fan unit 1 and the vertical swing motor 14 is provided in the base unit 3 is also possible. Further, a sensor for detecting the synchronization of the motor may be provided to stop the rotation of one motor each time.

  In addition, the circulator of the present invention can be applied to various uses such as a dehumidifier, an air conditioner, an air cleaner with a dehumidifier, and an air conditioner.

DESCRIPTION OF SYMBOLS 1 Fan part 2 Leg part 3 Base part 4 Front panel 4a Rim part 5 Rear panel 6 Main switch 7 Left / right swing switch 8 Vertical swing switch 9 Timer part 10 Holding part 11 Fan 12 Fan motor 13 Left / right swing motor 14 Vertical swing motor 100 Circulator 130 Left / right swing mechanism

Claims (5)

A circulator capable of simultaneously swinging left and right and swinging up and down,
Use the same specification synchronous motor as the motor for swinging left and right and swinging up and down,
While the rotation of one of the synchronous motors is continuously rotating, the rotation of the other synchronous motor is intermittently performed at a time interval in which the phase of the rotation cycle deviates from the phase of the rotation cycle of the one synchronous motor. A circulator characterized by being temporarily stopped.   The circulator according to claim 1, wherein the rotation of the other synchronous motor is temporarily stopped every predetermined time.   The circulator according to claim 1 or 2, wherein the pause time is 0.3 to less than 1 second.   The circulator according to any one of claims 1 to 3, wherein the rotation of the vertical swinging synchronous motor is temporarily stopped.   The circulator according to any one of claims 1 to 4, wherein the synchronous motors having the same specifications have the same motor gear ratio and the same rotational frequency.