Rotating body drive mechanism and mist collection device

Abstract

This rotating body drive device allows for detection of incorrect mounting of the rotating body before the rotating body's shaft insertion hole engages with the motor shaft. [Solution] In a rotating body drive device in which the motor shaft 6a of a rotating body motor 6 is inserted into the shaft insertion hole 5a of a rotating body 5, when the rotating body 5 is started to rotate, the rotation speed of the rotating body motor 6 is increased to a determination rotation speed, and then the rotating body motor 6 fart The output is reduced, and the subsequent motor shaft 6 A rotating body drive device comprising a control unit 12 that determines whether the rotating body 5 is in the correct mounting state or not based on changes in the rotation state of a, and a notification means 14 that notifies if the control unit 12 determines that the rotating body 5 is not in the correct mounting state, so that it is possible to know that the rotating body 5 is not in the correct mounting state by notification from the notification means 14.

Description

Technical Field

[0001] The present invention relates to a driving device for a rotating body that rotates a rotating body such as a filter and a fan of a range hood, and a mist collecting device such as a range hood.

Background Art

[0002] Conventionally, there are range hoods that rotate a filter, a fan, etc. with a motor. For example, in Patent Document 1, a shaft insertion hole of a filter formed of a rotating body having a large number of holes is fitted and attached to a motor shaft of a filter motor, and the filter is rotated at high speed by rotating the filter motor at high speed to prevent oil contained in cooking fumes from entering the inside of the range hood. A range hood has been proposed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When the range hood is used for a long time, the filter may be soiled with oil or the like. In that case, the filter may be removed from the motor shaft for cleaning and then attached to the motor shaft again. The filter needs to be attached in a correct attachment state so as to rotate integrally with the motor shaft. However, when the filter removed from the motor shaft is attached to the motor shaft again, the filter may be attached in an incorrect attachment state where it rotates relative to the motor shaft instead of rotating integrally. When the filter motor is rotated at high speed in this incorrect mounting state, the motor shaft and the shaft insertion hole of the filter rub against each other, generating strong friction and causing damage. The heat generated by this friction causes the damaged areas to weld together, resulting in the motor shaft and shaft insertion hole becoming jammed. As a result, problems may occur where the filter cannot be removed, or becomes difficult to remove. This phenomenon occurs not only in devices that drive range hood filters, but also in devices that drive fans and devices that drive rotating parts used in applications other than range hoods.

[0005] The present invention was made to solve the above problems, and its objective is to provide a rotating body drive device that can detect if the mounting state of the rotating body is incorrect before the motor shaft of the rotating body and the shaft insertion hole of the rotating body become engaged. [Means for solving the problem]

[0006] The present invention provides a rotating body drive device in which the motor shaft of a rotating body motor is inserted into a shaft insertion hole of the rotating body and the rotating body is rotated by rotating the rotating body motor, the device comprising a control unit that performs an operation to determine the mounting state of the rotating body, and the control unit The aforementioned The control unit comprises an input unit for inputting the start and stop of rotation of a rotating body, a detection means for detecting the rotational speed of the motor shaft, and a notification means. The aforementioned The operation to determine the mounting status of the rotating body is as follows: When the control unit receives an input to start the rotation of the rotating body, it increases the rotation speed of the motor for the rotating body to a determination rotation speed that is lower than the normal rotation speed of the motor for the rotating body, and then the motor for the rotating body fart The output of the rotating motor is reduced. fart This is a rotating body drive device characterized by an operation to determine whether the rotating body is in the correct mounting state or not based on the change in the rotation state of the motor shaft after reducing the output, and by providing notification via the notification means if it is determined that the rotating body is not in the correct mounting state.

[0007] In the rotating body drive device of the present invention, the motor for the rotating body fart If the output is reduced and a specified time has elapsed, and the rotational speed of the motor shaft detected by the detection means is below a predetermined rotational speed, 、 The rotating body drive device can be configured to notify the user via the notification means if it determines that the rotating body is not in the correct mounting state.

[0008] In the rotating body drive device of the present invention, the motor for the rotating body fart Reduce the output to a stop, and the rotating body for motor fart If, after a specified time has elapsed since the output stopped, the rotational speed of the motor shaft detected by the detection means is less than or equal to a predetermined rotational speed, 、 The rotating body drive device can be configured to notify the user via the notification means if it determines that the rotating body is not in the correct mounting state. According to this rotating body drive system, the motor for the rotating body fart The rotational speed of the motor shaft after a specified time has elapsed since the output stopped differs significantly depending on whether the rotating body is properly mounted or not, allowing for a more accurate determination of the mounting condition of the rotating body.

[0009] In the rotating body drive device of the present invention, the motor for the rotating body fart The decrease in the rotational speed of the motor shaft after reducing the output was detected by the detection means. The aforementioned A rotating body drive device can be configured to monitor the rotational speed of the motor shaft, and if the rotational speed of the motor shaft decreases rapidly, it can be determined that the rotating body is not in the correct mounting state, and the notification means can be used to notify the user.

[0010] In the rotating body drive device of the present invention, if the control unit determines that the rotating body is in the correct mounting state, it will rotate the motor for the rotating body at its normal rotational speed. rotate If it is determined that the rotating body is not in the correct mounting state, the motor for the rotating body will be deactivated. fart This can be a rotating body drive device that stops the output and maintains that output stoppage. According to this rotating body drive system, if the rotating body is properly installed, it will rotate at its normal speed after the installation status is determined, so there is no need to perform any operation to rotate it at its normal speed after the installation status is determined. The rotating body is in the correct mounting position. So If 、 After assessing the installation status too Since the rotating body remains stationary and does not rotate at its normal rotational speed, it prevents the motor shaft from jamming into the shaft insertion hole of the rotating body, and also prevents damage caused by the rotating body coming into contact with other components due to rotation in an incorrect mounting state.

[0011] In the rotating body drive device of the present invention, the control unit stops outputting to the motor for the rotating body if it determines that the rotating body is not in the correct mounting state, and has a storage unit that stores the determination that the rotating body is not in the correct mounting state, and when it is determined that the rotating body is not in the correct mounting state that the storage unit stores an input to start the rotation of the rotating body Also before Recording Control Unit is before Motor for rotating bodies fart The output has been kept stopped. 、 It can be used as a drive device for a rotating body. With this rotating body drive device, even if the input unit sends a signal to the control unit to start the rotation of the rotating body again when the rotating body is not properly mounted, the rotating body will not rotate. This prevents the motor shaft from jamming into the shaft insertion hole of the rotating body, and also prevents the rotating body from coming into contact with other components and being damaged.

[0012] In the rotating body drive device of the present invention, if the control unit determines that the rotating body is not in the correct mounting state, the motor for the rotating body fart The system has a memory unit that stops the output and stores that it has been determined that the rotating body is not in the correct mounting state, and when it has been determined that the rotating body is not in the correct mounting state the memory unit stores that an input to start the rotation of the rotating body has been received. Also before Recording Control Unit is before Motor for rotating bodies fartMaintain the output stop and prevent the determination operation of the mounting state of the rotating body from being performed again. 、 It can be used as a driving device for the rotating body. According to this driving device for the rotating body, once it is determined that the mounting state of the rotating body is incorrect, the determination operation of the mounting state of the rotating body is not performed again, so the load associated with determining the mounting state of the rotating body can be reduced. Since the operations that occur during the determination of the mounting state of the rotating body are not performed multiple times, there is no discomfort caused by the repeated occurrence of the operations during the determination.

[0013] In the driving device for the rotating body of the present invention, when the control unit determines that the rotating body is not in the correct mounting state, it stops the output to the motor for the rotating body and has a storage unit that stores the fact that it has been determined that the rotating body is not in the correct mounting state. When it is stored in the storage unit that it has been determined that the rotating body is not in the correct mounting state, assuming that there is an input for starting the rotation of the rotating body Also before Recording control unit is before Recording motor for the rotating body fart Maintain the output stop and cause the notification means to notify again. 、 It can be used as a driving device for the rotating body. According to this driving device for the rotating body, although there is a possibility that the user may feel unnatural that the rotating body does not rotate despite an operation to start the rotation of the rotating body, since it is possible to know that the mounting state of the rotating body is incorrect by the notification of the notification means, it is possible to prevent the user from feeling unnatural.

[0014] This invention In the driving device for the rotating body, when the control unit receives an input for stopping the rotation of the rotating body from the input unit, it resets the storage in the storage unit of the determination that the rotating body is not in the correct mounting state. 、 It can be used as a driving device for the rotating body. According to this driving device for the rotating body, by resetting the storage in the storage unit of the determination that the rotating body is not in the correct mounting state, when the rotating body is mounted again after the mounting state of the rotating body is determined, the operation of determining the mounting state of the rotating body can be performed.

[0015] The mist collection device of the present invention, This invention This is a mist collection device equipped with a rotating drive mechanism.

[0016] The rotating body drive device of the present invention can have the following configuration. (1) A rotating body drive device in which the motor shaft of a motor for a rotating body is inserted into a shaft insertion hole of the rotating body and the rotating body is rotated by the rotation of the motor for the rotating body, comprising a control unit that performs an operation to determine the mounting state of the rotating body, and the control unit The aforementioned The control unit comprises an input unit for inputting the start and stop of rotation of a rotating body, a detection means for detecting the rotational speed of the motor shaft, and a notification means. The aforementioned The operation to determine the mounting status of the rotating body is as follows: When the control unit receives an input to start the rotation of the rotating body, it increases the rotation speed of the motor for the rotating body to a determination rotation speed that is lower than the normal rotation speed of the motor for the rotating body, and then the motor for the rotating body fart The output of the rotating motor is reduced. fart A rotating body drive device characterized by an operation to determine whether the rotating body is in the correct mounting state or not based on the change in the rotation state of the motor shaft after reducing the output, and to notify by the notification means if it is determined that the rotating body is not in the correct mounting state.

[0017] (2) The motor for the rotating body fart If the output is reduced and a specified time has elapsed, and the rotational speed of the motor shaft detected by the detection means is below a predetermined rotational speed, 、 The rotating body drive device according to (1), characterized in that it determines that the rotating body is not in the correct mounting state and notifies the user using the notification means.

[0018] (3) The motor for the rotating body fart Reduce the output to a stop, and the rotating body for motor fart If, after a specified time has elapsed since the output stopped, the rotational speed of the motor shaft detected by the detection means is less than or equal to a predetermined rotational speed, 、The rotating body drive device according to (1) or (2), characterized in that it determines that the rotating body is not in the correct mounting state and notifies the user using the notification means.

[0019] (4) The motor for the rotating body fart The decrease in the rotational speed of the motor shaft after reducing the output was detected by the detection means. The aforementioned A rotating body drive device according to any one of (1) to (3), characterized in that it monitors the rotational speed of the motor shaft, and if the rotational speed of the motor shaft decreases rapidly, it is determined that the rotating body is not in the correct mounting state, and the notification means notifies the system.

[0020] (5) If the control unit determines that the rotating body is in the correct mounting state, it will rotate the motor for the rotating body at its normal rotational speed. rotate If it is determined that the rotating body is not in the correct mounting state, the motor for the rotating body will be deactivated. fart A rotating body drive device according to any one of (1) to (4), characterized in that it stops the output and maintains that output stop.

[0021] (6) The control unit has a memory unit that stores the fact that it has determined the rotating body is not in the correct mounting state, and when it has been determined that the rotating body is not in the correct mounting state the memory unit has received an input to start the rotation of the rotating body. Also before Recording Control Unit is before Motor for rotating bodies fart A rotating body drive device according to any one of (1) to (5), characterized in that it maintains the output stop.

[0022] (7) If the control unit determines that the rotating body is not in the correct mounting state, the motor for the rotating body fart The system has a memory unit that stops the output and stores that it has been determined that the rotating body is not in the correct mounting state, and when it has been determined that the rotating body is not in the correct mounting state the memory unit stores that an input to start the rotation of the rotating body has been received. Also before Recording Control Unit is before Motor for rotating bodies fart A rotating body drive device according to any one of (1) to (6), characterized in that it maintains the output stop and does not perform the operation to determine the mounting state of the rotating body again.

[0023] (8) The control unit has a memory unit that stores the fact that it has been determined that the rotating body is not in the correct mounting state, and when it has been determined that the rotating body is not in the correct mounting state that it has been determined that the rotating body is not in the correct mounting state, it will receive an input to start the rotation of the rotating body. Also before Recording Control Unit is before Motor for rotating bodies fart A rotating body drive device according to any one of (1) to (7), characterized in that the output stop is maintained and the notification means is used to notify again.

[0024] (9) The rotating body drive device according to any one of (1) to (8), wherein the control unit resets the memory in the memory unit that it has determined the rotating body is not in the correct mounting state when the input unit receives an input from the input unit that the rotating body should stop rotating. [Effects of the Invention]

[0025] According to the rotating body drive device of the present invention, if the mounting state of the rotating body is incorrect, a notification means will provide notification, and since the rotational speed for judgment is lower than the normal rotational speed of the rotating body, it is possible to detect that the mounting state of the rotating body is incorrect before the rotating body rotates at its normal rotational speed and the motor shaft and the shaft insertion hole of the rotating body become engaged. [Brief explanation of the drawing]

[0026] [Figure 1] This is a front view of the mist collection device. [Figure 2] Figure 1 is a cross-sectional view of the mist collection device shown in Figure 1. [Figure 3] This is an enlarged cross-sectional view of section B of the mist collection device shown in Figure 2. [Figure 4]This is a block diagram for explaining motor drive control for rotating bodies. [Modes for carrying out the invention]

[0027] The overall configuration of the mist collection device equipped with the rotating drive mechanism of the present invention will be explained with reference to Figures 1 and 2. Figure 1 is a front view of the mist collection device, and Figure 2 is a cross-sectional view AA of the mist collection device shown in Figure 1. The mist collection device 1 comprises a fan 3 that generates airflow within the device body 2, a fan motor 4 that rotates the fan 3, a rotating body 5 that is rotatably provided in the airflow path within the device body 2 and has numerous holes, and a rotating body motor 6 that rotates the rotating body 5, etc. The fan 3 rotates to collect mist within the device body 2, foreign matter contained in the mist is removed as it passes through the holes in the rotating body 5, and the mist free of foreign matter is discharged outside the device body 2. The mist collection device 1 in this embodiment is a range hood that collects and discharges oil fumes and the like generated when cooking with a heating appliance. The device body 2 is the hood, and the rotating body 5 with holes is the filter.

[0028] The mist collection device 1 is not limited to range hoods. Mist refers to liquids such as water vapor and oil, and the mist collection device may be any of the following: An oil fumes collection device installed near a cooking appliance to collect oil fumes, steam, and other substances generated during cooking. A dehumidifier removes moisture from the air. A collection device that draws in indoor air or mist and is installed either in the middle of a duct or at the end of a duct.

[0029] The rotating body 5 and the motor 6 for the rotating body constitute the drive device for the rotating body of the present invention. The following describes an embodiment of the drive device for this rotating body. The mounting configuration of the rotating body in the rotating body drive device will be explained based on Figure 3. Figure 3 is an enlarged cross-sectional view of section B in Figure 2. As shown in Figure 3, the rotating body 5 has a shaft insertion hole 5a through which the motor shaft 6a of the rotating body motor 6 is inserted, and a boss groove 5b. The rotating body 5 is attached to the motor shaft 6a by fitting the shaft insertion hole 5a onto the motor shaft 6a, engaging the motor pin 6b provided on the motor shaft 6a with the boss groove 5b, and locking the rotating body 5 with the locking mechanism 7 to prevent it from coming off the motor shaft 6a. By releasing the lock mechanism 7, the rotating body 5 can be removed from the motor shaft 6a.

[0030] The locking mechanism 7 is similar to the attachment / detachment device shown in Japanese Patent Publication No. 7248340. The locking piece 7a is movable between a locked position in which it engages with the small diameter portion 6c of the motor shaft 6a to lock it, and an unlocked position in which it releases the lock. The locking piece 7a is held in the locked position by a spring or the like. When the shaft insertion hole 5a of the rotating body 5 is fitted onto the motor shaft 6a, the locking piece 7a moves against the spring to the unlocked position. When the rotating body 5 is pushed along the motor shaft 6a, the locking piece 7a moves to the small diameter portion 6c of the motor shaft 6a, moving to the locked position and engaging with the small diameter portion 6c, locking the rotating body 5 so that it does not come off the motor shaft 6a. By manually moving the locking piece 7a to the unlocked position, the rotating body 5 can be removed from the motor shaft 6a.

[0031] The locking mechanism 7 is not limited to this configuration. For example, a screw groove may be formed at the tip of the motor shaft 6a, and a nut may be screwed into the screw groove to lock the rotating body 5 in place, and the lock may be released by loosening the nut, allowing the rotating body 5 to be removed. 、 Alternatively, the rotating body 5 can be locked in place by inserting a locking pin through it onto the motor shaft 6a, and the lock can be released by removing the locking pin from the motor shaft 6a, allowing the rotating body 5 to be removed from the motor shaft 6a.

[0032] Rotating motor based on Figure 4 6 This section explains the drive control. Figure 4 is a block diagram illustrating the drive control of a motor for a rotating body. As shown in Figure 4, the system includes a power supply 10, a motor drive unit 11, a control unit 12, an input unit 13 for inputting rotation start and rotation stop to the control unit 12, a notification means 14, and a storage unit 15. The motor drive unit 11 supplies current to the rotating motor 6 to rotate the rotating motor 6. The control unit 12 sends the rotation speed of the motor 6 for the rotating body to the motor drive unit 11. The motor drive unit 11 supplies a current to the rotating body motor 6 that is strong enough (current value) to rotate the rotating body motor 6 at the transmitted rotational speed.

[0033] The rotating motor 6 rotates at a rotational speed corresponding to the strength (current value) of the current supplied from the motor drive unit 11, and rotates at a rotational speed sent from the control unit 12. 。 In other words, the control unit 12 controls the motor 6 for the rotating body. episode The rolling speed can be controlled. The motor 6 for the rotating body sends the rotation speed (rotation speed of the motor shaft 6a) to the control unit 12. i It has a backing function, and this function teeth Detection means for detecting the rotational speed of the motor shaft 6a is equipped . As a detection means for detecting the rotational speed of the motor shaft 6a, a speed detector that directly detects the rotational speed of the motor shaft 6a may also be used.

[0034] As shown in Figure 1, the input unit 13 is located on the front of the main body 2 of the device and includes a rotation start operation button 13a for inputting the start of rotation and a rotation stop operation button 13b for inputting the stop of rotation. Since the embodiment is a range hood, the rotation start operation button 13a is the operation start button for the range hood, and the rotation stop button operation Button 13b is the stop button for the range hood, and the input unit 13 is equipped with several other operation buttons for operating the range hood. Some range hoods start operating in conjunction with the start of heating in a cooking appliance and stop operating in conjunction with the end of heating in the cooking appliance. In the case of such range hoods, it is possible to input a rotation start signal to the control unit 12 when the cooking appliance starts heating and a rotation stop signal to the control unit 12 when the cooking appliance ends heating.

[0035] For example, a cooking appliance can be configured to emit a heating start signal when heating begins and a heating stop signal when heating ends. A signal receiver can be installed in the range hood, and when the signal receiver receives the heating start signal, it can input a rotation start signal to the control unit 12. When the signal receiver receives the heating stop signal, it can input a rotation stop signal to the control unit 12. In other words, the input unit 13 acts as the input source for the control unit 12, which receives signals indicating the start and end of rotation when the heating appliance is heated and when it is stopped.

[0036] When the input unit 13 signals the start of rotation to the control unit 12, the control unit 12 sends the rotation speed of the motor for the rotating body 6 to the motor drive unit 11, and the motor drive unit 11 supplies a current strong enough to rotate the motor for the rotating body 6 at the rotation speed sent from the control unit 12, and the motor for the rotating body 6 is controlled by the control unit 12 12 It rotates at the rotational speed transmitted from it. When the input unit 13 signals the control unit 12 to stop rotation, the control unit 12 stops sending the rotational speed of the rotating body motor 6 to the motor drive unit 11, which means it stops supplying current to the rotating body motor 6, and the rotation of the rotating body motor 6 stops. Thus, the motor for rotating bodies 6 fart The output is controlled by the control unit 12, and when the rotational speed sent from the control unit 12 is zero, the rotating motor 6 fart The output will be zero, that is, a rotating motor 6 Stop. Rotating motor 6 Stop After stopping, the motor shaft 6a rotates due to its moment of inertia, and then rotates again. of Stop.

[0037] Next, we will explain the operation for determining the mounting status of the rotating body 5. In the following explanation, the correct mounting state of the rotating body 5 is when the motor pin 6b and boss groove 5b are engaged, and the rotating body 5 is mounted in a state where it rotates integrally with the motor shaft 6a. The incorrect mounting state of the rotating body 5 is when the motor pin 6b and boss groove 5b are not engaged, and the rotating body 5 and motor shaft 6a are mounted in a state where they can rotate relative to each other, and the motor shaft 6a This is the case when the rotating body 5 is not attached. If the rotating body 5 is not properly mounted, and the motor 6 for the rotating body rotates at high speed, the motor shaft 6a and the rotating body 5 will rotate relative to each other, causing the rotating body 5 to move slightly (loosely) relative to the motor shaft 6a. This causes the motor shaft 6a and the shaft insertion hole 5a to rub against each other, generating strong friction and simultaneously causing damage. This damage then welds due to frictional heat, making it difficult or impossible to remove the rotating body 5. Whether the mounting state of the rotating body 5 is correct or incorrect depends on the mounting configuration of the rotating body 5 as described above, and this explanation does not apply if the mounting configuration of the rotating body 5 is different. The rotation start operation button 13a on the input unit 13 is operated to input the start of rotation of the rotating body 5 to the control unit 12. Upon receiving the input of the start of rotation, the control unit 12 sends the determination rotation speed of the rotating body motor 6 to the motor drive unit 11. Upon receiving the determination rotation speed, the motor drive unit 11 supplies a current to the rotating body motor 6 with a strength (current value) that rotates the rotating body motor 6 at the determination rotation speed. As a result, the rotating body motor 6 rotates at the determination rotation speed, and the motor shaft 6a rotates at the determination rotation speed. The rotation speed of the motor shaft 6a is sent to the control unit 12. i It will be backed out. The rotational speed for judgment is a speed lower than the normal rotational speed, for example, a speed at which, even if the motor 6 for the rotating body rotates when the mounting condition of the rotating body 5 is incorrect, there is no risk of the shaft insertion hole 5a of the rotating body 5 and the motor shaft 6a becoming jammed, for example, a speed of 1000 rpm or less, more preferably 500 rpm or less. Normal rotational speed refers to the rotational speed set when a rotating body is rotated by a drive mechanism, depending on the purpose of rotating the body.

[0038] At this time, the control unit 12 gradually increases the rotational speed sent to the motor drive unit 11 from zero to the judgment rotational speed, and the motor drive unit 11 gradually increases the current supplied to the rotating body motor 6 from zero to a predetermined strength, so that the rotating body motor 6 slowly increases to the judgment rotational speed. Therefore, even if the rotating body 5 is not mounted correctly, it is possible to prevent the shaft insertion hole 5a of the rotating body 5 from jamming with the motor shaft 6a. In other words, if the motor 6 for the rotating body rapidly increases to the judgment rotation speed, the shaft insertion hole 5a of the rotating body 5 and the motor shaft 6a may become jammed if the mounting condition of the rotating body 5 is incorrect.

[0039] The control unit 12 i When the rotational speed of the motor shaft 6a being fed back reaches the judgment rotational speed, the control unit 12 reduces the rotational speed sent to the motor drive unit 11 from the judgment rotational speed to zero. The motor drive unit 11 reduces the strength of the current supplied to the rotating motor 6 to zero. As a result, the current supplied to the rotating motor 6 becomes zero, and the rotating motor 6 fart The output will stop. In other words, the control unit 12 will determine the rotation speed of the rotating motor 6 after it has increased to the determination rotation speed. fart Reduce the output to zero. little ru.

[0040] As a result, no current is supplied to the motor 6 for the rotating body, so the motor shaft 6a has a moment of inertia equal to the moment of inertia of the motor shaft 6a and the moment of inertia of the rotating body 5 (hereinafter referred to as the motor shaft 6 It rotates solely due to the moment of inertia of a. After this, the control unit 12 controls the motor 6 for the rotating body. fart The time elapsed since the output stopped is measured, and after the specified time has elapsed, the motor 6 for the rotating body is turned off. i The rotational speed of the motor shaft 6a is compared with a predetermined rotational speed, and if the rotational speed of the motor shaft 6a is less than or equal to the predetermined rotational speed, it is determined that the mounting condition of the rotating body 5 is incorrect. In other words, if the rotating body 5 is not mounted correctly, the rotating body 5 and the motor shaft 6a will rotate relative to each other. As a result, the moment of inertia of the motor shaft 6a will be small, and the time it takes for the motor shaft 6a to stop rotating will be short. Therefore, the rotational speed of the motor shaft 6a will be slower than the predetermined rotational speed after a specified time has elapsed.

[0041] If the control unit 12 determines that the mounting state of the rotating body 5 is incorrect, the notification means 14 will notify that the mounting state of the rotating body 5 is incorrect, and the storage unit 15 will store that the mounting state of the rotating body 5 is incorrect. The notification means 14 is a buzzer, lamp, sound generator, display unit, etc., that notifies the user that the mounting state of the rotating body 5 is incorrect using sound, light, voice, text, etc. Furthermore, the notification by the notification means 14 may be a temporary notification or a continuous notification, such as keeping a lamp lit. Alternatively, the notification means 14 may be a smartphone or a remote controller for remotely operating the drive device of the rotating body, and information indicating that the mounting state of the rotating body 5 is incorrect may be sent to the smartphone or remote controller to notify that the mounting state of the rotating body 5 is incorrect. In this way, if the mounting state of the rotating body 5 is incorrect, the notification means 14 will notify, and since the rotation speed for judgment is lower than the normal rotation speed of the rotating body 5, it is possible to detect that the mounting state of the rotating body 5 is incorrect before the rotating body 5 rotates at its normal rotation speed and the motor shaft 6a and the shaft insertion hole 5a of the rotating body 5 become engaged. Furthermore, the notification means 14 also provides notification if the rotating body 5 is not attached to the motor shaft 6a, so it is possible to detect if the rotating body 5 has been forgotten to be attached.

[0042] Furthermore, if the control unit 12 determines that the mounting state of the rotating body 5 is incorrect, the motor 6 for the rotating body fart Maintain the output suspension. This ensures that the rotating body 5 is in the correct mounting position. So If 、 Determining the installation status LaterSince the rotating body 5 remains stationary and does not rotate at its normal rotational speed, it is possible to prevent the motor shaft 6a from jamming into the shaft insertion hole 5a of the rotating body 5, and to prevent damage caused by the rotating body 5 continuing to rotate in an incorrect mounting state and coming into contact with other components.

[0043] The control unit 12 determines that the mounting state of the rotating body 5 is correct if the rotational speed of the motor shaft 6a is faster than a predetermined rotational speed. In other words, if the mounting of the rotating body 5 is correct, the rotating body 5 rotates together with the motor shaft 6a, so the inertia of the motor shaft 6a but Because the motor shaft 6a is large and the time it takes for it to stop rotating is long, the rotational speed of the motor shaft 6a becomes faster than the predetermined rotational speed after the specified time. If the control unit 12 determines that the mounting state of the rotating body 5 is correct, the control unit 12 sends the normal rotation speed to the motor drive unit 11, and the motor drive unit 11 supplies a current strong enough to rotate the rotating body motor 6 at the normal rotation speed, causing the rotating body motor 6 to rotate at the normal rotation speed. Therefore, if the rotating body 5 is properly mounted on the motor shaft 6a, the rotating body 5 will automatically rotate at its normal speed without any further operation after determining its mounting status. Thus, no special operation is required to rotate the rotating body 5 at its normal speed.

[0044] Motor for rotating bodies 6 fart The rotational speed of the motor shaft 6a after a specified time has elapsed since the output stopped differs significantly depending on whether the rotating body 5 is properly mounted or not, allowing for a more accurate determination of the mounting condition of the rotating body 5. In other words, a motor for rotating bodies 6 fartSince the motor shaft 6a rotates by inertia alone after the output stops, the rotation speed after a specified time is fast when the motor shaft 6a and the rotating body 5 rotate together and the rotating body 5, which has high inertia, is correctly mounted, and slow when the motor shaft 6a and the rotating body 5 rotate relative to each other and the rotating body 5, which has low inertia, is incorrectly mounted. The difference in speed is large, making it easy to determine whether the mounting of the rotating body 5 is correct or incorrect, and thus a correct judgment can be made.

[0045] In the following way too The mounting status of the rotating body 5 can be determined. Motor for rotating bodies 6 fart Instead of reducing the output to a complete stop, the output is reduced to a predetermined level, and after a specified time has elapsed, the motor 6 for the rotating body is stopped. i The rotational speed of the motor shaft 6a is compared with a predetermined rotational speed, and if the rotational speed of the motor shaft 6a is less than or equal to the predetermined rotational speed, it is determined that the mounting condition of the rotating body 5 is incorrect. The preferred output is one in which the rotational force of the motor 6 for the rotating body, caused by the supplied current, is smaller than the moment of inertia of the rotating motor shaft 6a, and the motor shaft 6a decelerates due to the moment of inertia and stops over time. In this case, it is preferable that the specified time be shorter than the specified time for reducing the output to the rotating motor 6, as described above, until it stops.

[0046] This explains the process of making such a decision. As explained earlier, the motor 6 for the rotating body is increased to the rotational speed for judgment, and the control unit 12 is sent i After the rotational speed of the motor shaft 6a being backed up (the rotational speed of the motor 6 for the rotating body) increases to the judgment rotational speed, the control unit 12 reduces the rotational speed of the motor 6 for the rotating body that is sent to the motor drive unit 11 from the judgment rotational speed to a predetermined rotational speed greater than zero, and the motor drive unit 11 controls the motor 6 for the rotating body Offering By reducing the strength of the supplied current to a predetermined current strength slightly stronger than zero, and setting the rotational speed of the rotating motor 6 to a predetermined rotational speed slower than the judgment rotational speed, the rotating motor 6 fartThe output is reduced to a predetermined output.

[0047] The control unit 12 receives power from the motor 6 for the rotating body. i The rotational speed of the motor shaft 6a that is being backed up reaches a predetermined rotational speed (that is, the motor 6 for the rotating body) fart The time elapsed from the point when the output of the motor is reduced to a predetermined level is measured, and after the specified time has elapsed, the motor for the rotating body 6 is released. i The control unit 12 compares the rotational speed of the motor shaft 6a with a preset predetermined rotational speed. If the rotational speed of the motor shaft 6a is less than or equal to the predetermined rotational speed, it determines that the mounting state of the rotating body 5 is incorrect and issues a notification. means The system will issue a notification at 14 and store in the memory unit 15 that the mounting state of the rotating body 5 is incorrect. Furthermore, the control unit 12 does not send the rotational speed of the rotating motor 6 to the motor drive unit 11, and the rotating motor 6 fart Stop the output and maintain that output stop. In this case, the predetermined rotational speed is the rotating motor 6 mentioned earlier. to output of Stop do The predetermined rotational speed when it decreases to 、 It is preferable to make it slower than that. The operation after determining the mounting status of the rotating body 5 is the same as described above.

[0048] The mounting status of the rotating body 5 can be determined as follows. As described above, after the rotational speed of the rotating motor 6 increases to the judgment rotational speed, the control unit 12 reduces the rotational speed of the rotating motor 6 that it sends to the motor drive unit 11 from the judgment rotational speed to a predetermined rotational speed, and reduces the strength of the current supplied from the motor drive unit 11 to the rotating motor 6 to a predetermined strength, thereby decelerating the rotational speed of the rotating motor 6 to a predetermined rotational speed and reducing the output of the rotating motor 6 to a predetermined level. In other words, the control unit 12 will determine the rotation speed of the rotating motor 6 after it has increased to the determination speed. fart The output is reduced to a predetermined output. As a result, the rotational speed of the motor shaft 6a of the rotating motor 6 is reduced from the judgment rotational speed to a predetermined rotational speed, and then rotates at the predetermined rotational speed.

[0049] The control unit 12 is i When the rotational speed of the motor shaft 6a being fed back reaches a predetermined rotational speed (that is, after the rotational speed of the motor 6 for the rotating body that sends power to the motor drive unit 11 has decreased from the judgment rotational speed to the predetermined rotational speed), the motor 6 for the rotating body i The system monitors how quickly the rotational speed of the motor shaft 6a decreases. If the rotational speed of the motor shaft 6a decreases rapidly, it is determined that the rotating body 5 is not properly mounted. If the rotational speed of the motor shaft 6a decreases slowly, it is determined that the rotating body 5 is properly mounted. In other words, the rate at which the rotational speed of the rotating body 5 decreases is the rate at which it decelerates per unit time (speed reduction gradient). If the rotating body 5 is properly mounted, it rotates together with the motor shaft 6a, so the moment of inertia (rotational resistance) of the motor shaft 6a is large, the rate at which it decelerates per unit time is slow (speed reduction gradient is gentle), and the rate at which the rotational speed of the motor shaft 6a decreases is slow. If the rotating body 5 is not properly mounted, the rotating body 5 and the motor shaft 6a will rotate relative to each other. As a result, the moment of inertia (rotational resistance) of the motor shaft 6a will be small, the rate of deceleration per unit time will be fast (the rate of decrease will be steep), and the rotational speed of the motor shaft 6a will decrease rapidly.

[0050] The predetermined rotational speed of the rotating motor 6 at this time can be any speed slower than the judgment rotational speed, but it is preferable that it be the speed at which the motor shaft 6a is decelerated by the moment of inertia. In other words, it is preferable that the strength of the current supplied to the rotating motor 6 be set to the speed at which the motor shaft 6a of the rotating motor 6 is decelerated by the moment of inertia. By doing this, the rate at which the rotational speed of the motor shaft 6a decreases from a predetermined rotational speed differs significantly depending on whether the mounting state of the rotating body 5 is correct or incorrect, making it easier to determine the mounting state of the rotating body 5.

[0051] For example, the system sets the rate at which the rotational speed of the motor shaft 6a decreases when the rotating body 5 is correctly mounted. The system then compares the monitored rate at which the rotational speed of the motor shaft 6a decreases with the set rate. If the monitored rate at which the rotational speed of the motor shaft 6a decreases is greater than or equal to the set rate, the system determines that the mounting of the rotating body 5 is incorrect. If the rate at which the rotational speed of the motor shaft 6a decreases is less than the set rate, the system determines that the mounting of the rotating body 5 is correct. After determining the mounting status of the rotating body 5, the subsequent operations are the same as described above. Although a detailed explanation will be omitted, after the rotational speed of the rotating motor 6 reaches the judgment rotational speed, the rotating motor 6 fart Reduce the output to zero. a bit The mounting status of the rotating body 5 can be determined by how the rotational speed of the motor shaft 6a decreases after the output stops.

[0052] From the above explanation, the operation to determine the mounting state of the rotating body 5 in the rotating body drive device of the present invention is as follows: When the control unit 12 receives an input for the start of rotation of the rotating body 5, the rotating body motor 6 is rotated at a determination rotation speed which is lower than the normal rotation speed of the rotating body motor 6, and then the rotating body motor 6 fart The motor shaft after reducing the output and the output to the rotating motor 6 6a This operation determines whether the rotating body 5 is in the correct mounting state or not based on the change in its rotational state. A change in rotational state refers to the motor shaft. 6a This is the change in the deceleration state from the rotational speed used for judgment.

[0053] Next, the configuration of the control unit 12 will be described. After the control unit 12 determines that the mounting state of the rotating body 5 is incorrect, the user initiates rotation to start the rotating body 5. operation Button 13 a When the rotating body 5 rotates when the motor is operated, the motor shaft 6a and the shaft insertion hole 5a of the rotating body 5 engage. fruit This can occur, or the rotating body 5 may come into contact with other components and be damaged. To prevent this, control unit 12 teethThe structure is as follows: When the memory unit 15 has determined that the rotating body 5 is not in the correct mounting state, and the rotation start operation button 13a on the input unit 13 is operated to input the start of rotation of the rotating body 5 to the control unit 12, the control unit 12 does not send the rotation speed of the rotating body motor 6 to the motor drive unit 11, and the rotating body motor 6 fart The configuration is designed to maintain the output being stopped.

[0054] With this configuration of the control unit 12, even if the user inputs a command to start the rotation of the rotating body 5 from the input unit 13 after the control unit 12 has determined that the mounting state of the rotating body 5 is incorrect, no current is supplied from the motor drive unit 11 to the motor for the rotating body 6, and the motor for the rotating body 6 does not rotate. Therefore, even if the input unit 13 sends a signal to the control unit 12 to start the rotation of the rotating body 5 when the rotating body 5 is not properly mounted, the rotating body 5 will not rotate. This prevents the motor shaft 6a from jamming with the shaft insertion hole 5a of the rotating body 5, and also prevents the rotating body 5 from coming into contact with other components and being damaged.

[0055] After determining that the mounting state of the rotating body 5 is incorrect, the user initiates rotation to start the rotating body 5. operation Button 13 a When the aforementioned operation is performed to determine the mounting status of the rotating body 5, a load is placed on the rotating body 5, and the user may experience discomfort. To prevent this, the control unit 12 is configured as follows. If the memory unit 15 has stored information that the rotating body 5 is not in the correct mounting state, and the user operates the rotation start operation button 13a on the input unit 13 to input a signal to the control unit 12 to start the rotation of the rotating body 5, the control unit 12 will not send the rotation speed of the motor 6 for the rotating body to the motor drive unit 11, and will not perform the operation to determine the mounting state of the rotating body 5 again.

[0056] With this configuration, if the control unit 12 determines that the mounting state of the rotating body 5 is incorrect, and then the user operates the rotation start operation button 13a on the input unit 13 to input to the control unit 12 that the rotating body 5 should start rotating, no current will be sent from the motor drive unit 11 to the motor for the rotating body 6, the motor for the rotating body 6 will not rotate, and the control unit 12 will not perform the operation to determine the mounting state of the rotating body 5 again. Therefore, once it is determined that the mounting state of the rotating body 5 is incorrect, the system does not perform the operation to determine the mounting state of the rotating body 5 again, thus reducing the load on the system to determine the mounting state of the rotating body 5. Since the actions required to determine the mounting status of the rotating body 5 are not repeated multiple times, the user does not experience any discomfort caused by the repeated actions required for the determination.

[0057] After determining that the mounting of the rotating body 5 is incorrect, the user presses the rotation start operation button 13 to rotate the rotating body 5. a When the device is operated, the user may find it unnatural if the rotating body 5 does not rotate. To prevent this, control unit 12 teeth The structure is as follows: If the memory unit 15 has determined that the rotating body 5 is not in the correct mounting state, and the rotation start operation button 13a on the input unit 13 is operated to input a rotation start signal for the rotating body 5, the control unit 12 will not send the rotation speed of the rotating body motor 6 to the motor drive unit 11, and will instead operate the rotating body motor 6 fart The system maintains the output of the rotating body 5 in a stopped state, and the notification means 14 notifies that the mounting state of the rotating body 5 is incorrect.

[0058] With this configuration, the control unit 12, after determining that the mounting state of the rotating body 5 is incorrect, inputs a command to start the rotation of the rotating body 5 from the input unit 13 to the control unit 12. death even 、 No current is sent from the motor drive unit 11 to the motor for the rotating body 6, the motor for the rotating body 6 does not rotate, and the notification means 14 issues another notification. Therefore, even if the rotating body 5 does not rotate despite the operation to start its rotation, the notification means 14 will notify the user that the mounting state of the rotating body 5 is incorrect, thus preventing the user from feeling that something is wrong.

[0059] The control unit 12 controls the storage unit 15 to turn When it is determined that the rotating body 5 is not in the correct mounting position, the rotation start operation button 13 on the input unit 13 is pressed. a If the system is configured such that operating it does not perform an operation to determine the mounting status of the rotating body 5, then when the user removes and reinstalls the rotating body 5 after determining that its mounting status is incorrect, the system cannot determine the mounting status of the rotating body 5. To prevent this, the control unit 12 is configured as follows. Storage section 15 to turn If the system has determined that the rotating body 5 is not in the correct mounting state, and the rotation stop operation button 13b on the input unit 13 is operated to input a signal to the control unit 12 to stop the rotation of the rotating body 5, the system is configured to reset the memory in the memory unit 15 that it has determined that the rotating body 5 is not in the correct mounting state.

[0060] With this configuration, the control unit 12 determines that the mounting state of the rotating body 5 is incorrect. When the user operates the rotation stop operation button 13b on the input unit 13, the memory in the storage unit 15 that the rotating body 5 is not in the correct mounting state is reset. Then, by operating the rotation start operation button 13a on the input unit 13 to input the start of rotation of the motor 6 for the rotating body to the control unit 12, the control unit 12 can determine the mounting state of the rotating body 5. Therefore, if the user removes and reattaches the rotating body 5 after determining that it is not properly mounted, the user can operate the rotation stop button 13b on the input unit 13, which resets the memory in the storage unit 15 that the rotating body 5 is not properly mounted. Subsequently, the user can operate the rotation start button 13a on the input unit 13 to input the start of rotation of the rotating body motor 6 to the control unit 12, which then performs the operation to determine the mounting status of the rotating body 5.

[0061] Furthermore, the block diagram used to explain the motor drive control for rotating bodies is not limited to the configuration shown in Figure 4; any configuration that can perform the operations described in the specification is acceptable. [Explanation of symbols]

[0062] 5...Rotating body, 5a...Shaft insertion hole, 6...Motor for rotating body, 6a...Motor shaft, 11...Motor drive unit, 12...Control unit, 13...Input unit, 13a...Operation button for starting rotation, 13b...Operation button for stopping rotation, 14 … Notification method, 15... Memory unit.

Claims

1. In a rotating body drive device in which the motor shaft of a rotating body is inserted into a shaft insertion hole of the rotating body and the rotating body is rotated by rotating the rotating body motor, The system comprises a control unit that performs an operation to determine the mounting status of the rotating body, an input unit that inputs the start and stop of rotation of the rotating body to the control unit, a detection means for detecting the rotational speed of the motor shaft, and a notification means. The operation of the control unit to determine the mounting state of the rotating body is characterized in that, when the control unit receives an input to start the rotation of the rotating body, it increases the rotation speed of the motor for the rotating body to a determination rotation speed which is lower than the normal rotation speed of the motor for the rotating body, then decreases the output of the motor for the rotating body, and determines whether the rotating body is in the correct mounting state or not based on the change in the rotation state of the motor shaft after the output of the motor for the rotating body has been decreased, and if it is determined that the rotating body is not in the correct mounting state, it notifies using the notification means.

2. In the rotating body drive device according to claim 1, A rotating body drive device that, after a specified time has elapsed since reducing the output of the motor for the rotating body, determines that the rotating body is not in the correct mounting state if the rotational speed of the motor shaft detected by the detection means is below a predetermined rotational speed, and notifies the user via the notification means.

3. In the rotating body drive device according to claim 1, The output of the aforementioned rotating motor is reduced to a stop. A rotating body drive device that, after a specified time has elapsed since the output of the rotating body motor stopped, determines that the rotating body is not in the correct mounting state if the rotational speed of the motor shaft detected by the detection means is below a predetermined rotational speed, and notifies the user via the notification means.

4. In the rotating body drive device according to claim 1, A rotating body drive device that monitors the rate at which the rotational speed of the motor shaft decreases after reducing the output of the motor for the rotating body, based on the rotational speed of the motor shaft detected by the detection means, and determines that the rotating body is not in the correct mounting state if the rate at which the rotational speed of the motor shaft decreases is rapid, and notifies the user via the notification means.

5. In the rotating body drive device according to claim 1, The control unit determines that the rotating body is in the correct mounting state and rotates the motor for the rotating body at a normal rotational speed, and determines that the rotating body is not in the correct mounting state and stops the output of the motor for the rotating body and maintains that output stop.

6. In the rotating body drive device according to claim 1, If the control unit determines that the rotating body is not in the correct mounting state, it stops the output of the motor for the rotating body. The system has a memory unit that stores that it has been determined that the rotating body is not in the correct mounting state, and the memory unit stores, A drive device for a rotating body, wherein, if it is determined that the rotating body is not in the correct mounting state, the control unit maintains the output of the motor for the rotating body stopped even if there is an input to start the rotation of the rotating body.

7. In the rotating body drive device according to claim 1, If the control unit determines that the rotating body is not in the correct mounting state, it stops the output of the motor for the rotating body. A rotating body drive device having a memory unit that stores a determination that the rotating body is not in the correct mounting state, wherein if the memory unit stores that the rotating body is not in the correct mounting state, even if there is an input to start the rotation of the rotating body, the control unit maintains the output of the motor for the rotating body stopped and does not perform the operation to determine the mounting state of the rotating body again.

8. In the rotating body drive device according to claim 1, If the control unit determines that the rotating body is not in the correct mounting state, it stops the output of the motor for the rotating body. A rotating body drive device having a memory unit that stores a determination that the rotating body is not in the correct mounting state, and when the memory unit stores that the rotating body is not in the correct mounting state, even if there is an input to start the rotation of the rotating body, the control unit maintains the output of the motor for the rotating body stopped and notifies again by the notification means.

9. In a rotating body drive device according to any one of claims 6 to 8, The control unit is configured to reset the memory in the storage unit that determines the rotating body is not in the correct mounting state when the input unit receives an input from the input unit to stop the rotation of the rotating body.

10. A mist collection device comprising a rotating body drive device according to claim 1.

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