JP6442306B2 - Fluid device - Google Patents

Description

  The present invention relates to a fluid device that sucks or discharges gas.

  As a fluid device that sucks or discharges gas, for example, a dust collector that collects dust by sucking outside air, a blower that discharges gas, and the like are known. Further, as these various fluid devices, a rechargeable fluid that is equipped with a rechargeable battery and that is configured to suck or discharge gas by driving a motor with the power of the battery and rotating a fan. The device is known.

  In Patent Document 1, as a specific example of the rechargeable fluidic device, the operation mode is alternately switched between the high mode and the low mode every time the drive switch is pushed to change from the off state to the on state. The cleaner configured is described. The high mode is an operation mode for rotating the motor at a high speed, and the low mode is an operation mode for rotating the motor at a low speed.

  The cleaner described in Patent Literature 1 is further configured to be able to switch the operation mode to a high power mode in which the rotation speed of the motor is higher than that in the high mode. Specifically, during operation in the high mode or the low mode, when the drive switch is continuously pressed for a set time or longer (hereinafter also referred to as “long press”), the operation mode is switched to the high power mode. Then, while the long press is continued, the operation mode is maintained in the high power mode, and when the pressing operation is released, the operation mode before switching to the high power mode is restored.

JP 2013-233056 A

  According to the cleaner described in Patent Document 1, the user can perform cleaning with a suction force stronger than that in the high mode by pressing and holding the drive switch as necessary to switch to the high power mode. Can be carried out efficiently.

  However, when the user wants to operate in the high power mode, the user needs to continuously press and operate the drive switch while the user wants to operate in the high power mode. Therefore, the user may feel inconvenience that the user must perform cleaning while maintaining the push operation, or may feel tired by continuing the push operation.

  The present invention has been made in view of the above problems, and in a fluidic device configured to be able to switch an operation mode by an operation on the same switch, the user can select a desired operation mode while suppressing a decrease in user-friendliness. It is intended to be able to be used in.

  A fluid device according to one aspect of the present invention made to solve the above problems includes a fan configured to suck or discharge gas, a motor configured to drive the fan, and the motor. A battery configured to supply electric power, an operation switch configured to be operated by a user, a basic drive unit, a high-power drive unit, a release detection unit, and a mode return unit .

  The basic drive unit alternately switches the motor operation mode to one of the first operation mode and the second operation mode each time the operation switch is operated. The first operation mode is an operation mode in which the motor is rotated by supplying a first drive current to the motor. The second operation mode is an operation mode in which the motor is rotated at a higher speed than the first operation mode by passing a second drive current larger than the first drive current through the motor.

  The high-power drive unit switches the operation mode to the third operation mode when the operation switch is continuously operated for a predetermined operation regulation time or longer. The third operation mode is an operation mode in which the motor is rotated at a higher speed than the second operation mode by passing a third drive current larger than the second drive current through the motor.

  The release detection unit detects that the operation of the operation switch by the user has been released after the operation mode is switched to the third operation mode by the high output drive unit. The mode return unit detects the release of the operation switch by the release detection unit, and when a predetermined return condition is satisfied, the operation mode is changed to the original operation mode before switching to the third operation mode. Switch to operating mode.

  According to the fluid device configured as described above, the user continues to operate the operation switch for the operation specified time or more and switches the operation mode to the third operation mode, and then cancels the operation of the operation switch. The fluidic device can continue to operate in the third mode of operation. That is, in order to operate in the third operation mode, it is not necessary to continue operating the operation switch beyond the specified operation time. Then, when the return condition is satisfied, the third operation mode can be switched to the original operation mode before switching to the third operation mode. Therefore, the user can use it in a desired operation mode while suppressing a decrease in usability of the user.

  In the fluid device configured as described above, the mode return unit may include an operation detection unit configured to detect that the operation switch has been operated. In this case, the return condition may be that the operation detection unit detects that the operation switch has been operated.

  According to the fluid device configured as described above, after the user switches the operation mode to the third operation mode, the user can continue to use the fluid device in the third operation mode unless the operation switch is operated. it can. When the use in the third operation mode is no longer necessary, the operation mode can be easily restored by operating the drive switch.

  In addition, the mode return unit includes a time measuring unit configured to time an elapsed time after it is detected that the operation of the operation switch is released by the release detecting unit, and an elapsed time during the time counting by the time measuring unit. A return determination unit configured to determine whether or not a predetermined specified return time has been reached. The return condition may be that the return determination unit determines that the elapsed time is equal to or longer than the specified return time.

  According to the fluid device configured as described above, after the user continues operating the operation switch for the operation specified time or more and switches the operation mode to the third operation mode, the user operates the operation switch for the return specified time. The fluidic device can continue to operate in the third mode of operation without continuing to operate. In addition, after the specified recovery time has elapsed, the operation mode is automatically restored from the third operation mode to the original operation mode. Therefore, such a configuration is particularly effective for the need to reduce the battery power consumption while realizing the ease of use that can be used in the third operation mode even if the operation switch is released. It is.

  As described above, the fluid device configured to automatically return to the original operation mode when the specified recovery time elapses after the transition to the third operation mode may further have the following configuration. That is, the mode return unit detects that the operation switch has been operated after the start of counting the elapsed time by the timing unit and before the return determination unit determines that the elapsed time has exceeded the specified return time. You may provide the comprised operation detection part. The return condition may be that the operation detection unit detects that the operation switch has been operated.

  According to the fluid device configured as described above, the operation switch may be operated when it is desired to return the operation mode to the original state before the specified recovery time elapses after the transition to the third operation mode. In other words, if it is desired to return to the operation mode early after shifting to the third mode, it is possible to operate the operation switch. Thus, the operation mode returns to the original operation mode. Therefore, the operation time in the third operation mode can be further suppressed, the power consumption of the battery can be further reduced, and the battery can be prolonged.

  Further, as described above, the fluidic device configured to automatically return to the original operation mode when the specified recovery time elapses after shifting to the third operation mode may have the following configuration. That is, the mode return unit detects that the operation switch has been operated after the start of counting the elapsed time by the timing unit and before the return determination unit determines that the elapsed time has exceeded the specified return time. The configured operation detection unit and the elapsed time for changing the elapsed time during the time measurement by the time measurement unit to a time shorter than the current elapsed time when it is detected that the operation switch is operated by the operation detection unit. And a changing unit.

  According to the fluid device configured as described above, the user needs to use the basic configuration of automatically returning to the original operation mode when the specified recovery time elapses after the transition to the third operation mode. Accordingly, the arrival until the specified recovery time can be delayed, and the use in the third operation mode can be continued substantially exceeding the specified recovery time.

  In addition, specifically, the fluid devices having the above-described configurations may be, for example, a dust collector or a blower. The dust collector is configured to be able to suck fluid by rotation of a fan. The blower is configured to be able to discharge fluid by rotation of the fan.

It is a perspective view showing the appearance of the handy cleaner of an embodiment. It is a block diagram showing the structure of a battery pack and a control circuit board. It is a flowchart showing the operation mode setting process of 1st Embodiment. It is a flowchart showing the operation mode setting process of 2nd Embodiment. It is a flowchart showing the operation mode setting process of 3rd Embodiment. It is a perspective view showing the external appearance of the rechargeable blower of a modification.

Embodiments to which the present invention is applied will be described below with reference to the drawings.
[First Embodiment]
In the present embodiment, the present invention is applied to a rechargeable handy cleaner 2 which is one of dust collectors equipped with a battery. The handy cleaner 2 of this embodiment will be described with reference to FIGS. 1 and 2.

  As shown in FIG. 1, the handy cleaner 2 of this embodiment includes a case 3 formed in a cylindrical shape. A suction port 4 through which outside air is sucked is provided at the tip of the case 3. The side wall of the case 3 is provided with a discharge port 6 through which air from which dust has been removed is discharged. On the rear end side of the case 3, a grip portion 8 is provided for the user to hold by hand.

  An electronic switch 10 is provided at the upper end portion of the grip portion 8. The electronic switch 10 is provided so that the user can operate it while holding the grip 8. An LED 13 is provided in front of the electronic switch 10. The LED 13 is configured to light up when the handy cleaner 2 is in operation. Further, an indicator 14 is provided in front of the LED 13. The indicator 14 will not be described in the present embodiment, but will be described in a third embodiment to be described later.

  The electronic switch 10 is provided with a drive switch 11 and a stop switch 12. The drive switch 11 is a switch operated by the user in order to switch the operation mode of the handy cleaner 2. The stop switch 12 is a switch operated by the user in order to stop the operation of the handy cleaner 2. In the present embodiment, each of the switches 11 and 12 is configured such that when the user is operating (pushing), the electrical contact is closed and when the user is not operating, the electrical contact is opened. A normally open type (so-called a contact) switch.

  “On” for each of the switches 11 and 12 means a state in which the user is operating (pushing). That is, being turned on means that the electric contact is closed by being operated by the user. Conversely, “off” means a state in which the user has not operated (pressed). That is, being turned off means that the electric contact is opened without being operated by the user.

  In addition, it is not essential to use a normally open type switch as each of the switches 11 and 12, and other types of switches may be used. For example, the electrical contact is opened when the user is operating (ie, turned on) and the electrical contact is closed when the user is not operating (ie, turned off). A normally closed (so-called b contact) switch may be used.

A suction fan 15, a motor 16, a battery pack 20, and a control circuit board 30 shown in FIG. 2 are provided in the case 3 of the handy cleaner 2.
The motor 16 is a DC motor in this embodiment. In the case 3, the motor 16 is disposed on the rear end side (gripping part 8 side) opposite to the front end side (suction port 4 side). The suction fan 15 is disposed on the front end side of the motor 16 and is connected to the rotating shaft of the motor 16. For this reason, when the motor 16 rotates, the suction fan 15 rotates, whereby the outside air is sucked into the case 3 from the suction port 4.

  Between the suction fan 15 and the suction port 4, a filter (not shown) for removing dust in the sucked outside air is disposed. While the suction fan 15 is rotating, the outside air sucked from the suction port 4 is discharged from the discharge port 6 through the filter.

  The battery pack 20 includes a battery 26 in which a plurality (three in the figure) of cells 21, 22, and 23 that can be charged and discharged are connected in series, and a temperature at which the temperature of each cell 21, 22, and 23 of the battery 26 is detected. And a detection element 28. The battery 26 and the temperature detection element 28 are accommodated in a synthetic resin package.

  The battery pack 20 is housed on the lower rear end side in the case 3. In the handy cleaner 2, a lid body 9 is provided at the lower end portion of the grip portion 8, and the battery pack 20 is detachably stored in the case 3 by removing the lid body 9 ( (See FIG. 1).

The control circuit board 30 is disposed between the motor 16 and the battery pack 20 in the case 3.
The control circuit board 30 receives power supplied from the AC adapter 60 and charges the battery 26, and receives power from the battery 26 and discharges the motor 16 (in other words, drives the motor 16). Has functions to perform. Various electronic components for realizing these functions are assembled on the control circuit board 30.

  The AC adapter 60 is for supplying a constant charging current to the battery 26, and is configured separately from the handy cleaner 2. The AC adapter 60 receives power supplied from an AC power source and generates a DC voltage for charging the battery 26. In the handy cleaner 2, a DC jack 18 for inputting a DC voltage from the AC adapter 60 is provided in the vicinity of the LED 13 in the upper side of the case 3. By inserting a DC plug (not shown) provided at the end of a power cord drawn out from the AC adapter 60 into the DC jack 18, the DC voltage for charging generated by the AC adapter 60 is supplied to the control circuit. It can be supplied to the battery 26 via the substrate 30.

Next, the circuit configuration of the control circuit board 30 will be described with reference to FIG.
As shown in FIG. 2, the control circuit board 30 is formed with a discharge path through which current flows from the positive side of the battery 26 to the negative side of the battery 26 via the motor 16. A discharge control FET 32 for controlling the discharge current from the battery 26 to the motor 16 (that is, the drive current of the motor 16) is provided on the downstream side of the motor 16 in this discharge path (the negative side of the battery 26). .

  Further, the control circuit board 30 is connected to the positive terminal (+) of the AC adapter 60 connected to the positive terminal of the battery 26 and the negative terminal (−) of the AC adapter 60 connected to the negative terminal of the battery 26. A path is formed. Among these charging paths, a charging control FET 34 and a charging protection FET 36 are provided in series on the charging path from the positive terminal (+) of the AC adapter 60 to the positive side of the battery 26. It has been. The charge control FET 34 is provided to control the charging current from the AC adapter 60 to the battery 26. The charge protection FET 36 is provided to protect the battery 26 from overcurrent during charging.

  Each of the discharge control FET 32, the charge control FET 34, and the charge protection FET 36 is a semiconductor switching element that conducts or cuts off a discharge path or a charge path, and is driven by a control circuit 40 that controls charging / discharging of the battery 26. The

  The control circuit 40 includes a microcomputer mainly composed of a CPU, ROM, RAM, and the like. The control circuit 40 drives the motor 16 and charges the battery 26 by individually turning on / off the FETs 32, 34, and 36 in accordance with a control program stored in a storage medium such as a ROM.

  Specifically, when rotating the motor 16, the control circuit 40 generates a PWM signal (pulse width modulation signal) having a duty ratio corresponding to a set operation mode (details will be described later), and discharge control FET 32. The discharge control FET 32 is duty-driven. As a result, the motor 16 rotates at a speed corresponding to the set operation mode.

  Further, when the stop switch 12 is operated while the motor 16 is rotating in any one of the operation modes, the control circuit 40 turns off the discharge control FET 32 and stops driving the motor 16.

  The control circuit 40 is for charging control when the AC adapter 60 is connected while the driving of the motor 16 is stopped and the output voltage from the battery 26 is lower than the threshold voltage for determining charging start. By switching the FET 34 and the charge protection FET 36 from the off state to the on state, charging of the battery 26 is started.

  Control of charging the battery 26 by the control circuit 40 is continued until the battery 26 is fully charged. When the battery 26 becomes fully charged after the charging of the battery 26 is started, the control circuit 40 switches the charge control FET 34 and the charge protection FET 36 to the off state, and ends the charging of the battery 26.

  When performing such charge / discharge control, the control circuit 40, in addition to the output voltage from the battery 26, outputs various voltages such as the output voltage of each of the cells 21, 22, 23 constituting the battery 26 and the temperature of the battery 26. Monitor parameters. When these parameters are abnormal, the charge protection FET 36 and the discharge control FET 32 are turned off to stop charging / discharging the battery 26.

  For this reason, the control circuit board 30 is provided with a cell voltage detection unit 42 for detecting the output voltage of each cell 21, 22, 23 of the battery 26, and the control circuit 40 includes a cell voltage detection unit 42, A detection signal representing the voltage of each cell 21, 22, 23 is input.

  The control circuit board 30 is provided with a protection circuit 46. The protection circuit 46 takes in the voltage from each of the cells 21, 22, and 23 during charging of the battery 26, and when the voltage reaches a threshold value higher than the overvoltage determination value (that is, the overvoltage protection by the control circuit 40 is normally performed). When it does not function), the charging control FET 34 is forcibly turned off to forcibly stop charging.

  The control circuit board 30 is also provided with a disconnection detector 44. The disconnection detection unit 44 detects disconnection in the battery 26 from the cell voltage detected by the cell voltage detection unit 42 by setting the connection portion of each cell 21, 22, 23 in the battery 26 to a predetermined potential. To do. When the disconnection detection unit 44 detects a disconnection in the battery 26, the control circuit 40 prohibits charging / discharging of the battery 26.

  Further, the control circuit 40 monitors the temperature of the battery 26 using a temperature detection element 28 provided in the battery pack 20. Therefore, a temperature detection circuit is formed on the control circuit board 30 to connect one end of the temperature detection element 28 to the ground line and connect the other end of the temperature detection element 28 to the power supply line via the resistor 48. Has been. Therefore, the voltage across the temperature detection element 28 is taken into the control circuit 40 as a detection voltage indicating the temperature of the battery 26.

Further, the control circuit board 30 is provided with a regulator 50 for supplying a power supply voltage (DC constant voltage) for operation to the control circuit 40.
The regulator 50 can supply a DC voltage from both the battery 26 and the AC adapter 60 via the two diodes 52 and 54, and is controlled using the DC voltage supplied from either of them. A DC constant voltage for driving the circuit 40 is generated.

  The control circuit 40 operates by receiving power supply from the regulator 50. During the operation, while charging control for the battery 26 is being performed, the LED 13 provided in the case 3 is turned on to notify the user to that effect.

  Next, the operation mode of the control circuit 40 will be described. In the present embodiment, three operation modes of a high mode, a low mode, and a high power mode are set as operation modes of the control circuit 40 when the motor 16 is driven to rotate the suction fan 15. Yes. The high mode is an operation mode for rotating the motor 16 at a high speed. The low mode is an operation mode for rotating the motor 16 at a low speed (lower speed than the high mode). The high power mode is an operation mode for rotating the motor 16 at a very high speed (higher speed than the high mode).

  Further, the drive duty ratio of the discharge control FET 32 set for each operation mode is stored in the ROM of the control circuit 40 as control data for driving the motor 16 in each operation mode.

  The drive duty ratio is the smallest in the low mode (for example, a value lower than 50%), the largest in the high power mode (for example, 100%), and the middle between the two in the high mode (for example, 50% to 100%). It is set stepwise for each operation mode so as to be a predetermined value within a range of less than.

  When the operation mode is set to any one of the high mode, the low mode, and the high power mode in each operation mode setting process shown in FIG. 3, the control circuit 40 corresponds to the set operation mode. The read drive duty ratio is read from the ROM, and a PWM signal (pulse width modulation signal) corresponding to the read drive duty ratio is output as a drive signal for the discharge control FET 32.

  As a result, a drive current corresponding to the duty ratio of the PWM signal flows to the motor 16, and the motor 16 (and hence the suction fan 15) rotates at a rotational speed corresponding to the drive current, and finally The suction amount of the handy cleaner 2 is controlled corresponding to each operation mode.

  Further, the control circuit 40 stops the driving of the motor 16 immediately after being activated by the power supply from the regulator 50 or when the stop switch 12 is operated during the driving of the motor 16.

  When the drive switch 11 is operated while the motor 16 is stopped and the drive switch 11 changes from the off state to the on state, the control circuit 40 sets the operation mode to a preset initial operation mode. The initial operation mode is either the high mode or the low mode, and which one is set as the initial operation mode can be determined as appropriate. In the present embodiment, the high mode is set as the initial operation mode.

  Therefore, in this embodiment, when the drive switch 11 is turned on while the motor 16 is stopped, the control circuit 40 sets the operation mode to the high mode that is the initial operation mode. After the initial operation mode is set, the operation mode is switched according to the presence / absence of operation of the drive switch 11 and the operation continuation time (on-state holding time) unless the stop switch 12 is operated.

Such switching of the operation mode is performed by the control circuit 40 executing the operation mode setting process shown in FIG.
When the control circuit 40 (specifically, the CPU) is activated by turning on the power from the regulator 50, the control circuit 40 reads the operation mode setting process program of FIG. 3 from the ROM, and periodically executes the operation mode setting process. In the flowchart shown in FIG. 3, processing when the stop switch 12 is turned on while operating (rotating) in any of the operation modes, that is, processing for stopping the motor 16 when the stop switch 12 is turned on. About is omitted. The same applies to each operation mode setting process of FIGS. 4 and 5 described later.

  When the operation mode setting process of FIG. 3 is started, the control circuit 40 determines whether or not the drive switch 11 is turned on, that is, whether or not the drive switch 11 is operated (pressed) by the user in S110. . If the drive switch 11 is not turned on (S110: NO), the operation mode setting process ends.

  On the other hand, when the drive switch 11 is turned on (S110: YES), the operation mode is set to the initial operation mode in S120. In the present embodiment, as described above, since the high mode is set as the initial operation mode, the high mode is set in S120. When the operation mode is set to the high mode, the control circuit 40 outputs the PWM signal corresponding to the drive duty ratio in the high mode as a drive signal to the discharge control FET 32, thereby rotating the motor 16 in accordance with the high mode. Rotate at speed.

  After the operation mode is set to the initial operation mode in S120 and driving of the motor 16 is started, in S130, whether or not the drive switch 11 is kept on, that is, the drive switch 11 is turned on in S110. After the determination, it is determined whether or not the state in which the user operates the drive switch 11 is maintained (continued).

  If the ON state of the drive switch 11 is held (S130: YES), whether or not the time during which the ON state is held (holding time) is equal to or longer than the preset ON specified time Ton in S140. to decide. The holding time is an elapsed time from when it is determined in S110 that the drive switch 11 is turned on. If the holding time is less than the on-specified time Ton (S140: NO), the process returns to S130. When the holding time is equal to or longer than the on-specified time Ton (S140: YES), the process proceeds to S190, and the operation mode is switched to the high power mode.

  If the ON state of the drive switch 11 is not maintained in S130, that is, if the operation of the drive switch 11 is released and turned OFF (S130: NO), the process proceeds to S150. In S150, as in S110, it is determined whether or not the drive switch 11 is turned on. While the drive switch 11 is turned off, the determination process in S150 is repeated.

  When the drive switch 11 is turned on (S150: YES), the process proceeds to S160. In S160, as in S130, it is determined whether or not the ON state of the drive switch 11 is maintained. When the ON state of the drive switch 11 is not maintained, that is, when the operation of the drive switch 11 is released and turned OFF (S160: NO), the process proceeds to S170.

  In S170, the operation mode is switched to the high mode or the low mode according to the current operation mode (that is, the operation mode immediately before the drive switch 11 is turned on). That is, in S170, if the current operation mode is the high mode, the mode is switched to the low mode, and if the current operation mode is the low mode, the mode is switched to the high mode. After the process of S170, the process returns to S150.

  If the on state of the drive switch 11 is maintained in S160 (S160: YES), the process proceeds to S180. In S180, it is determined whether or not the time during which the ON state is held (holding time) is equal to or longer than a preset ON specified time Ton. The holding time in S180 is an elapsed time from when it is determined in S150 that the drive switch 11 is turned on.

  If the holding time is less than the on-specified time Ton (S180: NO), the process returns to S160. When the holding time is equal to or longer than the on-specified time Ton (S180: YES), the process proceeds to S190, and the operation mode is switched to the high power mode. As described above, when the holding time becomes equal to or longer than the on-specified time Ton in S140, the process proceeds to S190, and the operation mode is switched to the high power mode.

  That is, regardless of the operation state of the motor 16, when the drive switch 11 continues to be turned on (hereinafter also referred to as “long press”) for the on-specified time Ton, the operation mode is switched to the high power mode. In S190, in addition to switching to the high power mode, processing for storing the original operation mode before the switching is also performed. For example, when switching from the high mode to the high power mode in S190 due to a long press in the state set to the high mode, in S190, it is stored that the operation mode before the switching is the high mode.

  After switching the operation mode to the high power mode in S190, it is determined in S200 whether or not the drive switch 11 is turned off. That is, it is determined whether or not the long press operation by the user is released and the drive switch 11 is not operated. The determination process of S200 is repeated until the drive switch 11 is turned off. When the drive switch 11 is turned off (S200: YES), the process proceeds to S210.

  Even when the drive switch 11 is turned off, the operation mode is the high power mode. Therefore, when the user wants to operate in the high power mode, the switch to the high power mode itself needs to push the drive switch 11 for a long time, but after switching to the high power mode by the long press, the drive switch It is possible to continue to operate in the high power mode without continuing to operate 11.

  In S210, it is determined whether or not the drive switch 11 is turned on. That is, after determining that the drive switch 11 is turned off in S200, it is determined whether the drive switch 11 is turned on again.

  Until the drive switch 11 is turned on, the determination process of S210 is repeated. When the drive switch 11 is turned on (S210: YES), in S220, the operation mode is switched to the original operation mode (high mode or low mode) before switching to the high power mode in S190. That is, the original operation state before switching to the high power mode stored at the time of switching to the high power mode in S190 is restored.

  Specifically, when it is determined in S140 that the holding time is equal to or longer than the on-specified time Ton, the operation mode is switched to the high power mode, and in S220, the high mode that is the initial operation mode is switched.

  On the other hand, if it is determined in S180 that the holding time is equal to or longer than the specified on-time Ton, the operation mode is switched to the high power mode, and in S220, the operation mode immediately before switching to the high power mode is restored.

  After returning the operation mode in S220, it is determined in S230 whether or not the drive switch 11 has been turned off, that is, whether or not the drive switch 11 has changed from the on state to the off state. The determination process of S230 is repeated until the drive switch 11 is turned off. When the drive switch 11 is turned off (S230: YES), the process returns to S150.

  As described above, the handy cleaner 2 of this embodiment can alternately switch the operation mode between the high mode and the low mode each time the drive switch 11 is pressed for a short time. Furthermore, by pressing and holding the drive switch 11, it is possible to switch to the high power mode having a higher rotational speed than the high mode. Moreover, after switching to the high power mode, it is not necessary to keep the drive switch 11 in the on state. Even if the operation of the drive switch 11 is canceled and turned off, the operation in the high power mode is maintained. In order to return from the high power mode to the original operation mode (high mode or low mode), the drive switch 11 may be operated. Therefore, the user can use in a desired operation mode while suppressing a decrease in the user's usability.

  In the first embodiment, the drive switch 11 corresponds to an example of the operation switch of the present invention. The low mode corresponds to an example of the first operation mode of the present invention, the high mode corresponds to an example of the second operation mode of the present invention, and the high power mode corresponds to an example of the third operation mode of the present invention. To do. The specified on time Ton corresponds to an example of the specified operation time of the present invention. The control circuit 40 corresponds to an example of a basic drive unit, a high output drive unit, a release detection unit, and a mode return unit (particularly an operation detection unit) of the present invention. In the operation mode setting process of FIG. 3, the processes of S120 and S170 correspond to an example of a process executed by the basic drive unit of the present invention, and the process of S190 is an example of a process executed by the high output drive unit of the present invention. The process of S200 corresponds to an example of a process executed by the release detection unit of the present invention, and the process of S210 to S220 corresponds to an example of a process executed by the mode return unit of the present invention, and among these, in particular S210 This process corresponds to an example of a process executed by the operation detection unit included in the mode return unit of the present invention.

[Second Embodiment]
Since the basic configuration of the second embodiment is the same as that of the first embodiment, the description of the common configuration will be omitted, and the description will focus on the differences. The handy cleaner of the second embodiment has the same hardware configuration as that of the handy cleaner 2 of the first embodiment shown in FIGS.

  The handy cleaner of the second embodiment differs from the handy cleaner 2 of the first embodiment in the processing content of the operation mode setting process executed by the control circuit 40. Specifically, in the operation mode setting process according to the first embodiment, after the operation mode is switched to the high power mode by long-pressing the drive switch 11, the operation switch 11 is turned off after waiting for the drive switch 11 to be turned off (S200). After that, the high power mode was maintained. After the drive switch 11 is turned off, the high power mode is maintained until the drive switch 11 is turned on again (S210: NO). When the drive switch 11 is turned on (S210: YES), the high power mode is maintained. The mode is returned to the original operation mode (high mode or low mode) (S220).

  On the other hand, in the second embodiment, when the drive switch 11 is turned off after switching to the high power mode by long pressing, the high power mode is set for the predetermined recovery specified time Tret from when the drive switch 11 is turned off. When the specified return time Tret elapses, the operation mode automatically returns from the high power mode to the original operation mode (high mode or low mode). However, even if it is before the specified return time Tret has elapsed since the time of turning off, when the driving switch 11 is turned on by the user, the high power mode returns to the original operation mode (high mode or low mode). .

  The operation mode setting process of the second embodiment having the above-described differences from the operation mode setting process of the first embodiment will be described with reference to FIG. When starting the operation mode setting process of FIG. 4, the control circuit 40 starts the process from S310. Here, the processing of S310 to S350 is exactly the same as the processing of S110 to S150 in the operation mode setting processing of the first embodiment shown in FIG. Therefore, the description of the processing of S310 to S350 is omitted.

  When the drive switch 11 is set to the initial operation mode and then turned off once (S350: YES), in S360, as in S330, it is determined whether or not the drive switch 11 is on. To do. When the ON state of the drive switch 11 is not maintained, that is, when the operation of the drive switch 11 is released and turned OFF (S360: NO), the process proceeds to S370.

  In S370, the operation mode is switched to the high mode or the low mode according to the current operation mode (that is, the operation mode immediately before the drive switch 11 is turned on). That is, in S370, as in S170 of FIG. 3, if the current operation mode is the high mode, the mode is switched to the low mode, and if the current operation mode is the low mode, the mode is switched to the high mode. After S370, the process returns to S350.

  If the ON state of the drive switch 11 is held in S360 (S360: YES), the time during which the ON state is held (holding time) in S380 is equal to or longer than the preset specified ON time Ton. Judge whether or not. The holding time in S380 is an elapsed time from when it is determined in S350 that the drive switch 11 is turned on.

  If the holding time is less than the on-specified time Ton (S380: NO), the process returns to S360. When the holding time is equal to or longer than the on-specified time Ton (S380: YES), the process proceeds to S390, and the operation mode is switched to the high power mode. Note that if the holding time becomes equal to or longer than the on-specified time Ton in S340, the process proceeds to S390 and the operation mode is switched to the high power mode. In S390, as in S190 of FIG. 3, in addition to switching to the high power mode, processing for storing the original operation mode before the switching is also performed.

  In S400, it is determined whether or not the drive switch 11 is turned off. The determination process of S400 is repeated until the drive switch 11 is turned off. In other words, when the drive switch 11 continues to be pressed, the determination process of S400 is repeated, and the high power mode is maintained. When the drive switch 11 is turned off (S400: YES), the process proceeds to S410.

  In S410, the time measured by the timer is cleared to 0, and time measurement by the timer is started. That is, the elapsed time from when it is determined in S400 that the drive switch 11 is turned off is started. The timer used here may be a software timer realized by software processing, or may be a timer circuit (not shown) provided in the control circuit 40.

  In S420, it is determined whether or not the timer value, which is the time value of the timer, is equal to or longer than a preset return regulation time Tret. If the timer value is still less than the specified recovery time Tret (S420: NO), it is determined in S440 whether or not the drive switch 11 is turned on. If the drive switch 11 is not turned on (S440: NO), the process returns to S420.

  When the drive switch 11 is turned on (S440: YES), the process proceeds to S450, and the operation mode is switched to the original operation mode (high mode or low mode) before switching to the high power mode in S390. A specific method of switching to the original operation mode is the same as S220 in FIG. In other words, the operation mode immediately before switching to the high power mode may be stored and returned to the operation mode, or when switching to the high power mode by long pressing, the operation mode immediately before the long pressing operation is performed. May be stored and the operation mode may be restored.

  After returning the operation mode from the high power mode to the original operation mode in S450, it is determined in S460 whether or not the drive switch 11 has changed from the on state to the off state. While the ON state continues, the determination process of S460 is repeated. When the drive switch 11 is turned off (S460: YES), the process returns to S350.

  In S420, when the timer value is equal to or longer than the specified recovery time Tret (S420: YES), the process proceeds to S430. In S430, as in S450, the operation mode is switched to the original operation mode (high mode or low mode) before switching to the high power mode in S390. After returning the operation mode to the original operation mode in S430, the process returns to S350.

  As described above, the handy cleaner according to the second embodiment starts timing by the timer when the drive switch is turned off after the operation mode is switched to the high power mode by long pressing. When the elapsed time from the start of timing (that is, the elapsed time after the drive switch 11 is turned off) is equal to or longer than the specified recovery time Tret, the operation mode is automatically switched from the high power mode to the original operation mode.

  That is, after the user continues to operate the drive switch 11 for the on-specified time Ton and switches the operation mode to the high power mode, the user does not continue to operate the drive switch 11 during the return specified time Tret. You can continue to use the handy cleaner. In addition, after the specified recovery time Tret has elapsed, the operation mode is automatically restored from the high power mode to the original operation mode. Therefore, such a configuration is particularly effective for the need to reduce battery power consumption while realizing the ease of use that can be used in the high power mode even if the operation of the drive switch 11 is released. is there.

  In addition, the handy cleaner according to the second embodiment may be operated by operating the drive switch 11 when it is desired to return the operation mode to the original state before the return regulation time Tret elapses after the shift to the high power mode. That is, if it is desired to return to the operation mode early after shifting to the high power mode, it is possible to operate the drive switch 11, and even without operating the drive switch 11 (or forgetting to operate it). ) When the specified recovery time Tret elapses, the operation mode automatically returns to the original operation mode. Therefore, the operation time in the high power mode can be further suppressed, the power consumption of the battery 26 can be further reduced, and the battery 26 can be prolonged.

  In the operation mode setting process of FIG. 4, the timer timing started in S410 corresponds to an example of a process executed by the timer unit of the present invention, and the determination process of S420 is executed by the return determination unit of the present invention. This corresponds to an example of processing, and the processing of S440 corresponds to an example of processing executed by the operation detection unit of the present invention.

[Third Embodiment]
Since the basic configuration of the third embodiment is the same as that of the second embodiment, the description of the common configuration will be omitted, and the description will focus on the differences. That is, the handy cleaner of the third embodiment also has the same hardware configuration as the handy cleaner 2 of the first embodiment shown in FIGS. 1 and 2, and is exactly the same as the handy cleaner of the second embodiment. It is.

And the handy cleaner of this 3rd Embodiment differs in part from the processing content of the operation mode setting process which the control circuit 40 performs compared with the handy cleaner of 2nd Embodiment.
Specifically, in the operation mode setting process of the second embodiment, as described with reference to FIG. 4, when the motor 16 is operated by operating the drive switch 11 while the motor 16 is stopped (S310). -S320), if the drive switch 11 is continuously operated and pressed for a long time (S340: YES), the operation mode can be shifted to the high power mode (S390). On the other hand, in the third embodiment, when the drive switch 11 is turned on while the motor 16 is stopped, the drive switch 11 is not changed from the on state to the off state, and the high power mode is entered. I can't let you.

  Further, in the operation mode setting process of the second embodiment, when the operation switch is switched to the high power mode by long-pressing the drive switch 11 and then the drive switch 11 is turned off (S400: YES), the timer counts. Was started (S410). If the drive switch 11 is turned on after the start of timing but before the timer value becomes equal to or greater than the specified return time Tret, the operation mode is changed from the high power mode to the original operation mode (high) regardless of the timer value at that time. Mode or low mode) (S450). On the other hand, in the third embodiment, when the drive switch 11 is turned on before the timer value becomes equal to or longer than the specified recovery time Tret, the timer value is a certain amount in the sense opposite to the second embodiment. The remaining time until the specified recovery time Tret increases. That is, the time for operating in the high power mode is substantially extended. For example, how much time the timer value is returned to can be determined appropriately. For example, the timer value may be returned for a predetermined time from the current elapsed time, but in the third embodiment, it is uniform. The timer value is cleared to 0. Therefore, it is possible to continue to operate in the high power mode until the specified recovery time Tret elapses again. As long as the timer value does not exceed the specified recovery time Tret, the timer value can be cleared to 0 each time the drive switch 11 is turned on, and the operation in the high power mode can be continued.

  Further, in the third embodiment, information indicating the elapsed time (timer value) after the time measurement by the timer is started is displayed on the indicator 14 (see FIGS. 1 and 2). In other words, information indicating the remaining time until the timer value reaches the specified recovery time Tret (that is, the remaining time until the high power mode ends) is displayed on the indicator 14.

  The indicator 14 is a bar-type display in which three LEDs (the details are not shown) of the first LED 14a, the second LED 14b, and the third LED 14c are arranged in this order from the rear end side to the front end side of the handy cleaner. Means. All three LEDs 14a, 14b, and 14c are lit while the remaining time until the timer value reaches the return specified time Tret after the timer starts counting is 2/3 or more of the Tret. While the remaining time until the timer value reaches the return specified time Tret is less than 2/3 of the Tret and is 1/3 or more, the third LED 14c of the three LEDs is turned off and the other first and second LEDs 14a and 14b are turned on. When the remaining time until the timer value reaches the specified return time Tret is less than 1/3 of the Tret, only the first LED 14a is turned on. When the timer value reaches the specified recovery time Tret, all three LEDs 14a, 14b, and 14c are turned off.

  The operation mode setting process according to the third embodiment having the above-described differences from the operation mode setting process according to the second embodiment will be described with reference to FIG. In the operation mode setting process of FIG. 5, the processes of S310 to S320 and S350 to S410 are exactly the same as the processes with the same reference numerals in the operation mode setting process of FIG. For this reason, explanations for these processes are omitted.

  After the operation mode setting process of FIG. 5 is started, the control circuit 40 sets the operation mode to the initial operation mode by turning on the drive switch 11 (S320), and proceeds to S335. In S335, it is determined whether or not the drive switch 11 is turned off, that is, whether or not the drive switch 11 has changed from the on state to the off state. Until it is turned off, the determination process of S335 is repeated, and when it is turned off, the process proceeds to S350.

  In addition, after the operation mode is switched to the high power mode (S390), when the drive switch 11 is turned off and the time measurement by the timer is started in S410, the lighting control of the indicator 14 is performed according to the timer value in S415. Specifically, as described above, the three LEDs 14a, 14b, and 14c included in the indicator 14 are turned on or off according to the remaining time until the timer value reaches the specified recovery time Tret.

  Then, in S420, it is determined whether or not the timer value is equal to or longer than the specified recovery time Tret. If the timer value is equal to or longer than the specified recovery time Tret (S420: YES), in S425, all three LEDs 14a, 14b, 14c of the indicator 14 are turned off, and the process proceeds to S430.

  If the timer value is still less than the specified recovery time Tret in S420 (S420: NO), it is determined in S500 whether the drive switch 11 is turned on. If the drive switch 11 is not turned on (S500: NO), the process returns to S415. If the drive switch 11 is on (S500: YES), the process returns to S400 and waits for the drive switch 11 to be turned off again. When the drive switch 11 is turned off (S400: YES), the time count of the timer is cleared to 0 and the time count from 0 is restarted in S410.

  As described above, according to the handy cleaner of the third embodiment, the basic configuration is such that after returning to the high power mode, when the specified recovery time Tret elapses, the operation mode automatically returns to the original operation mode. The person can delay the arrival to the return specified time Tret as necessary. That is, the use in the high power mode can be continued substantially exceeding the specified recovery time Tret.

  In the operation mode setting process of FIG. 5, the process of S500 corresponds to an example of the process executed by the operation detection unit of the present invention, and when the determination in S500 is affirmative, the process of clearing the timer value in S410 via S400 Corresponds to an example of processing executed by the elapsed time changing unit of the present invention.

[Other Embodiments]
As mentioned above, although embodiment of this invention was described, this invention can take a various form, without being limited to the said embodiment.

  (1) In the operation mode setting process (FIG. 3) of the first embodiment, when the drive switch 11 is pressed for a long time from the state where the motor 16 is stopped (S140: YES), the operation mode is changed to the high power mode. If it is set, when the drive switch 11 is turned off and then turned on again, the motor 16 may be stopped again instead of the process of S220.

  (2) In 3rd Embodiment, it is an example to the last that the indicator 14 is the structure of the bar form by three LED. As long as the information indicating the remaining time until the timer value reaches the return specified time Tret can be displayed, the specific configuration of the display means, the display method, and the like can be determined as appropriate. For example, information indicating the remaining time may be notified by voice, not limited to the visual display.

  (3) In each of the embodiments described above, the discharge control FET 32 that is a semiconductor switching element is provided on the energization path from the battery 26 to the motor 16, and the discharge control FET 32 is duty-driven by the control circuit 40, whereby the motor In the above description, the driving current flowing in the control circuit 16 is controlled (that is, controlled to the driving current corresponding to the operation mode).

  However, the control of the drive current flowing through the motor 16 may be performed using a method other than the method of driving the semiconductor switching element as described above. For example, variable resistance means capable of changing the resistance value is provided on the energization path from the battery 26 to the motor 16, and when the motor 16 is driven, the resistance value is variably set according to the operation mode. A drive current corresponding to the operation mode may be supplied to the motor 16.

  (4) In the above embodiment, the case where the present invention is applied to the rechargeable handy cleaner 2 has been described. However, the present invention can be applied in the same manner as the above embodiment as long as it is a dust collecting device including a battery.

  Further, the present invention is similar to the above embodiment even in a blower that discharges gas, such as a rechargeable blower 70 as shown in FIG. 6, which is used to blow off dust by discharging high-pressure air, for example. Applicable to.

  Here, the rechargeable blower 70 shown in FIG. 6 has a cylindrical nozzle 74 having a discharge port 72 for discharging high-pressure air at the tip, a blower body 76 to which the rear end side of the nozzle 74 is attached, and a blower body 76. A battery pack 78 that is detachably attached to the battery pack.

  An intake port 80 for introducing outside air is provided on the side wall of the blower main body 76, and a grip portion 82 for a user to hold by hand is provided on the upper portion of the blower main body 76, and the nozzle 74 of the blower main body 76 is provided. A mounting portion 84 for mounting the battery pack 78 is provided on the opposite side.

As with the electronic switch 10 of the above-described embodiment, an electronic switch 86 that is operated by the user is provided at the tip portion of the grip portion 82 on the nozzle 74 side.
In the blower main body 76, a discharge fan for introducing outside air from the intake port 80 and discharging it to the nozzle 74 side, a motor for rotating the discharge fan, and a power supply from the battery pack 78 are operated, and an electronic switch A control circuit board for driving and controlling the motor in response to a drive command from 86 is provided.

  Also in the rechargeable blower 70 configured as described above, a control circuit composed of a microcomputer is mounted on the control circuit board, and this control circuit is moved from the battery pack 78 to the motor in the same procedure as the control circuit 40 of the above embodiment. If the semiconductor elements (FET, bipolar transistor, etc.) provided on the energization path to are controlled, the same effect as in the above embodiment can be obtained.

  (5) The battery that supplies electric power for operation to the motor may be detachable from the fluid device, or may be built in the fluid device. That is, the battery accommodation method for the fluid device is not particularly limited.

  (6) In addition, the functions of one component in the above embodiment may be distributed as a plurality of components, or the functions of a plurality of components may be integrated into one component. Further, at least a part of the configuration of the above embodiment may be replaced with a known configuration having the same function. Moreover, you may abbreviate | omit a part of structure of the said embodiment. In addition, at least a part of the configuration of the above embodiment may be added to or replaced with the configuration of the other embodiment. In addition, all the aspects included in the technical idea specified only by the wording described in the claim are embodiment of this invention.

  2 ... handy cleaner, 3 ... case, 4 ... suction port, 6 ... discharge port, 8, 82 ... gripping part, 9 ... lid, 10, 86 ... electronic switch, 11 ... drive switch, 12 ... stop switch, 13 ... LED, 14 ... indicator, 14a ... first LED, 14b ... second LED, 14c ... third LED, 15 ... suction fan, 16 ... motor, 18 ... DC jack, 20, 78 ... battery pack, 21 , 22, 23 ... cell, 26 ... battery, 28 ... temperature detection element, 30 ... control circuit board, 32 ... discharge control FET, 34 ... charge control FET, 36 ... charge protection FET, 40 ... control circuit, 42 ... Cell voltage detection unit, 44 ... Disconnection detection unit, 46 ... Protection circuit, 48 ... Resistance, 50 ... Regulator, 52, 54 ... Diode, 60 ... AC adapter, 70 ... Rechargeable blower, 72 ... Discharge port 74 ... nozzle, 76 ... blower body, 80 ... inlet, 84 ... mounting portion.

Claims (5)

A fan configured to suck or discharge gas;
A motor configured to drive the fan;
A battery configured to supply power to the motor;
An operation switch configured to be operated by a user;
Each time the operation switch is operated, the operation mode of the motor is larger than the first operation current in the first operation mode in which the motor is rotated by passing the first drive current through the motor and the motor. A basic drive unit configured to alternately switch to any one of a second operation mode for rotating the motor at a higher speed than the first operation mode by passing a second drive current;
When the operation switch is continuously operated for a predetermined operation regulation time or longer, the operation mode is caused to flow through the motor by passing a third drive current larger than the second drive current to the motor. A high output drive configured to switch to a third operation mode that rotates at a higher speed than the operation mode;
A release detection unit configured to detect that the operation of the operation switch by the user is released after the operation mode is switched to the third operation mode by the high-power drive unit;
The original operation before the operation mode is switched to the third operation mode when a predetermined return condition is satisfied after the release detection unit detects that the operation switch is released. A mode return unit configured to switch to a mode;
Equipped with a,
The mode return unit includes an operation detection unit configured to detect that the operation switch has been operated,
The return condition includes, Ru der that said operation switch by the operation detecting unit is operated is detected, the fluid device.   A fan configured to suck or discharge gas;
  A motor configured to drive the fan;
  A battery configured to supply power to the motor;
  An operation switch configured to be operated by a user;
  Each time the operation switch is operated, the operation mode of the motor is larger than the first operation current in the first operation mode in which the motor is rotated by passing the first drive current through the motor and the motor. A basic drive unit configured to alternately switch to any one of a second operation mode for rotating the motor at a higher speed than the first operation mode by passing a second drive current;
  When the operation switch is continuously operated for a predetermined operation regulation time or longer, the operation mode is caused to flow through the motor by passing a third drive current larger than the second drive current to the motor. A high output drive configured to switch to a third operation mode that rotates at a higher speed than the operation mode;
  A release detection unit configured to detect that the operation of the operation switch by the user is released after the operation mode is switched to the third operation mode by the high-power drive unit;
  The original operation before the operation mode is switched to the third operation mode when a predetermined return condition is satisfied after the release detection unit detects that the operation switch is released. A mode return unit configured to switch to a mode;
  With
  The mode return unit is
  A timing unit configured to count an elapsed time after it is detected that the operation of the operation switch has been released by the release detection unit;
  A return determination unit configured to determine whether or not the elapsed time during the time measurement by the time measurement unit is equal to or greater than a predetermined return specified time;
  It is configured to detect that the operation switch is operated after the elapsed time is started by the time measuring unit and before the elapsed time is determined to be equal to or longer than the specified return time by the return determination unit. An operation detection unit,
  With
  The return condition includes that the return determination unit determines that the elapsed time is equal to or longer than the return specified time, and that the operation detection unit detects that the operation switch has been operated. , Fluidic device.   A fan configured to suck or discharge gas;
  A motor configured to drive the fan;
  A battery configured to supply power to the motor;
  An operation switch configured to be operated by a user;
  Each time the operation switch is operated, the operation mode of the motor is larger than the first operation current in the first operation mode in which the motor is rotated by passing the first drive current through the motor and the motor. A basic drive unit configured to alternately switch to any one of a second operation mode for rotating the motor at a higher speed than the first operation mode by passing a second drive current;
  When the operation switch is continuously operated for a predetermined operation regulation time or longer, the operation mode is caused to flow through the motor by passing a third drive current larger than the second drive current to the motor. A high output drive configured to switch to a third operation mode that rotates at a higher speed than the operation mode;
  A release detection unit configured to detect that the operation of the operation switch by the user is released after the operation mode is switched to the third operation mode by the high-power drive unit;
  The original operation before the operation mode is switched to the third operation mode when a predetermined return condition is satisfied after the release detection unit detects that the operation switch is released. A mode return unit configured to switch to a mode;
  With
  The mode return unit is
  A timing unit configured to count an elapsed time after it is detected that the operation of the operation switch has been released by the release detection unit;
  A return determination unit configured to determine whether or not the elapsed time during the time measurement by the time measurement unit is equal to or greater than a predetermined return specified time;
  With
  The return condition is that the return determination unit determines that the elapsed time is equal to or longer than the return specified time,
  The mode return unit further includes:
  It is configured to detect that the operation switch is operated after the elapsed time is started by the time measuring unit and before the elapsed time is determined to be equal to or longer than the specified return time by the return determination unit. An operation detection unit,
  When it is detected that the operation switch is operated by the operation detecting unit, the elapsed time changing unit that changes the elapsed time during the time measurement by the time measuring unit to a time shorter than the current elapsed time;
  A fluidic device comprising: The fluid device according to any one of claims 1 to 3 ,
The fluid device is a dust device configured to be able to suck fluid by rotation of the fan. The fluid device according to any one of claims 1 to 3 ,
The fluid device is a blower configured to be capable of discharging fluid by rotation of the fan.