WO2017077577A1

WO2017077577A1 - Vacuum cleaner

Info

Publication number: WO2017077577A1
Application number: PCT/JP2015/080949
Authority: WO
Inventors: 丈瑠黒岩; 壮一郎黒川; 美子藤間; 彰久横山; 昌弘仁吾; 拓也松田
Original assignee: 三菱電機株式会社
Priority date: 2015-11-02
Filing date: 2015-11-02
Publication date: 2017-05-11
Also published as: TWI618524B; AU2015413796B2; CN108348122A; EP3372138A1; AU2015413796A1; TW201716025A; EP3372138B1; JPWO2017077577A1; EP3372138A4

Abstract

Provided is a vacuum cleaner, wherein a secondary battery (204) in a cleaner main body (200) is charged during storage, and when in use, power from the secondary battery (204) causes an electric blower (212) for sucking dust to rotate. When a power failure is detected, an illumination unit (250) is turned on with power from the secondary battery (204). When the cleaner main body (200) is connected to an external power source (420) and no power is supplied to the cleaner main body (200) from the external power source (420), it is determined that a power failure of the external power source (420) has occurred. The illumination unit is automatically turned on when a power failure occurs, thereby allowing a user to immediately understand the situation. Additionally, the presence of the illumination unit in the vacuum cleaner eliminates the need of another plug or another secondary battery.

Description

Electric vacuum cleaner

The present invention relates to a vacuum cleaner. In particular, the present invention relates to a rechargeable vacuum cleaner that includes an illumination unit that automatically turns on when a power failure occurs and acts as an emergency light.

There is one disclosed in Patent Document 1 as a vacuum cleaner provided with an illumination unit. The vacuum cleaner disclosed in Patent Document 1 includes an LED illumination unit and a fluorescent lamp illumination unit, and can turn on or off either the LED illumination unit or the fluorescent lamp illumination unit according to an operation input. For example, a narrow range such as a spotlight can be intensively illuminated using an LED illumination unit, or a wide range can be illuminated using a fluorescent lamp illumination unit.

JP 2011-206339 A

However, the above-described conventional vacuum cleaner is turned on after an operation by the operator, and is not automatically turned on when a power failure occurs.
Note that lighting fixtures that automatically turn on when a power failure occurs are also known, but such lighting fixtures require a dedicated outlet, and separate lighting for lighting when a power failure occurs. There is a problem that a secondary battery is necessary.

Furthermore, in order to always connect a lighting fixture for power outages that rarely occur to an external power source, it is necessary to exercise special consciousness, which is a burden on the user.

This invention was made in order to solve the above-mentioned subject, and it aims at providing the vacuum cleaner provided with the illumination part which lights automatically when a power failure occurs.

The vacuum cleaner of the present invention
A secondary battery housing part for housing the secondary battery;
A charge control unit that charges the secondary battery with power from an external power source;
A vacuum cleaner body comprising an electric blower driven by the power of the secondary battery,
An illumination unit that illuminates the periphery of the vacuum cleaner body;
And a lighting control unit that turns on the lighting unit with the power of the secondary battery when a power failure of the external power source is detected.

According to the present invention, when a power failure occurs, the illumination unit is automatically turned on, so that the situation can be quickly grasped. Moreover, since the illumination part is provided in the vacuum cleaner, a separate outlet and a separate secondary battery are unnecessary.
In addition, since vacuum cleaners are used relatively frequently for cleaning, users often connect to a power source for charging, thus activating special awareness in the event of a power outage Therefore, it is possible to ensure emergency lighting.

It is an external view which shows the electric vacuum cleaner of Embodiment 1 of this invention in a storage state. It is an external view which shows the electric vacuum cleaner of Embodiment 1 in use condition. It is a block diagram which shows the electric system of the vacuum cleaner of Embodiment 1. FIG. It is the schematic which shows the plug provided with the contact sensor of the connection detection part of the vacuum cleaner of Embodiment 1. FIG. It is a flowchart which shows the operation | movement content at the time of the power failure generation | occurrence | production of the vacuum cleaner of Embodiment 1, and a power failure recovery. It is an external view which shows the electric vacuum cleaner of Embodiment 2 of this invention in a storage state. It is the schematic which shows the contact sensor provided in the vacuum cleaner of Embodiment 2 and used for the detection of the connection of a power feeding terminal and a power receiving terminal. It is a block diagram which shows the structure of the computer which implement | achieves the function of the illumination control part of the vacuum cleaner of Embodiment 1 or 2.

Embodiment 1 FIG.
1 and 2 show the appearance of the electric vacuum cleaner 100 according to Embodiment 1 of the present invention.
As shown in FIGS. 1 and 2, the vacuum cleaner 100 includes a cleaner main body 200, a plug 310, a power cord 320, a handle 330, a suction tool 340, a connecting pipe 342, and an operation input unit. 350.

FIG. 1 shows a state where the vacuum cleaner 100 is supported by a storage mechanism 400 as an accessory of the vacuum cleaner 100, and FIG. 2 shows the vacuum cleaner 100 being used for cleaning. The state is shown.

The storage mechanism 400 shown in FIG. 1 is disposed near the outlet 410. The outlet 410 is connected to the external power source 420. The external power source 420 is a commercial power source, for example.

At the time of storage, the vacuum cleaner main body 200 is supported by the storage mechanism 400 as shown in FIG. 1, and the plug 310 is inserted into the outlet 410 for charging.

In use, generally, as shown in FIG. 2, the operator 450 grasps the handle 330 and applies the suction tool 340 to an object to be cleaned such as a floor to suck in dust.

FIG. 3 is a block diagram showing an electrical system of the vacuum cleaner 100 of FIGS. 1 and 2. FIG. 3 also shows an outline of the dust and air flow.

As shown in FIG. 3, the vacuum cleaner main body 200 includes a battery housing unit 202, a charge control unit 206, an electric blower 210, a motor control unit 216, a power input unit 220, a posture detection unit 230, an illuminance detection unit 235, and connection detection. A circuit 241, a power input detection unit 245, an illumination unit 250, an illumination control unit 260, and a dust separation and accumulation unit 344 are included.
The electric blower 210 includes a fan 212 and a fan motor 214.

The secondary battery 204 is detachably attached to the battery housing unit 202, and the secondary battery 204 is electrically connected to the charge control unit 206 in the state of being attached to the battery housing unit 202.

The power input unit 220 supplies the power input from the external power source 420 via the outlet 410, the plug 310, and the power cord 320 to the charging control unit 206.
The charging control unit 206 charges the secondary battery 204 with the power from the power input unit 220.

The operation input unit 350 is provided in the handle 330, for example, and is operated when the operator 450 uses the vacuum cleaner 100 for cleaning.

The motor control unit 216 controls the start, stop, rotation speed, etc. of the fan motor 214 according to the operation input from the operation input unit 350. The motor control unit 216 operates with power from the secondary battery 204, and drives the fan motor 214 using power from the secondary battery 204.

When the fan motor 214 is rotated, the fan 212 is rotated, whereby a negative pressure is formed inside the suction tool 340 and the connecting pipe 342, and dust-containing air is absorbed by the suction tool 340 as indicated by a dotted line in FIG. 3. The dust is sucked and sent to the dust separation and accumulation unit 344 via the connecting pipe 342, and the dust is accumulated in the dust separation and accumulation unit 344. The air that has passed through the dust separation and accumulation unit 344 is discharged to the outside of the cleaner body 200.

When the vacuum cleaner 100 is not used for cleaning, it is desirable to store the vacuum cleaner body 200 in an upright state. This is to reduce the floor area required for storage. In addition, it is desirable to charge the secondary battery 204 during storage.

Therefore, for example, as shown in FIG. 1, the vacuum cleaner 100 is supported by the storage mechanism 400 in an upright posture with respect to the floor surface and stored in this state. Then, the plug 310 is inserted into the outlet 410.

When the plug 310 is inserted into the outlet 410, the power from the external power source 420 is supplied to the cleaner body 200 via the plug 310 and the power cord 320, and the secondary battery is supplied via the power input unit 220 and the charging control unit 206. Electric power is supplied to 204 and the secondary battery 204 is charged. The charging control is performed by the charging control unit 206.

When cleaning, the electric vacuum cleaner 100 is generally used with the plug 310 pulled out from the outlet 410. However, the plug 310 may remain inserted into the outlet 410 as long as the plug 310 can be cleaned while being inserted into the outlet 410.

At the time of cleaning, the motor control unit 216 rotates the fan motor 214 with the electric power from the secondary battery 204 in accordance with the operation input from the operation input unit 350, and the fan 212 driven by the fan motor 214 causes the floor to rotate. Dust on the surface and the like is sent from the suction tool 340 to the dust separation and accumulation unit 344 via the connecting pipe 342.

As described above, the vacuum cleaner 100 is supported by the storage mechanism 400 in an upright state during storage. In this embodiment, storage mechanism 400 is a mechanism for standing up electric vacuum cleaner 100, and is a stand for leaning up electric vacuum cleaner 100.

Here, it is assumed that the vacuum cleaner 100 has an elongated shape as a whole, and “upright” means that the handle 330 of the vacuum cleaner 100 is above the suction tool 340 and the elongated vacuum cleaner. A state in which the longitudinal direction of the machine 100 is in a direction close to the vertical direction. The direction close to the vertical direction refers to a direction in which the difference from the vertical direction is within 30 degrees, for example.

In the example shown in FIG. 1, the storage mechanism 400 is a structure that supports the vacuum cleaner 100, and the suction tool 340 is brought into contact with the floor surface with the connecting pipe 342 and the suction tool 340 attached to the cleaner body 200. The cleaner main body 200 is inclined obliquely, and the side surface (surface of the side wall portion) 208 of the housing 207 is in contact with and supported by the support surface 402 of the storage mechanism 400.

The posture detection unit 230 detects the posture of the vacuum cleaner 100 and outputs the detection result to the illumination control unit 260. The posture detection unit 230 detects the posture of the vacuum cleaner 100 as a whole, for example, by detecting the posture of the vacuum cleaner main body 200. The posture detection unit 230 includes, for example, a sensor (such as an acceleration sensor) that detects the posture. As this posture, for example, an inclination with respect to the vertical direction is detected.

The illuminance detection unit 235 detects the illuminance around the cleaner body 200 and outputs the detection result to the illumination control unit 260. The illuminance detection unit 235 includes, for example, a sensor (illuminance sensor) that can measure the illuminance on the surface of the housing 207 of the cleaner body 200.

The connection detection circuit 241 forms part of the connection detection unit 240. The connection detection unit 240 detects the connection of the power input unit 220 to the external power supply 420 (therefore, the connection of the cleaner body 200 to the external power supply 420), and outputs the detection result to the illumination control unit 260. For example, the connection detection unit 240 determines whether or not the plug 310 is connected to the outlet 410.
The connection detection unit 240 includes, for example, a contact sensor in addition to the connection detection circuit 241.

An example of this contact sensor is shown in FIG. In the illustrated example, a contact 242 is provided on a part of the plug 310. The contact 242 contacts the surface of the outlet 410 when the plug 310 is inserted into the outlet 410 to detect the insertion. A signal indicating the detection result is transmitted to the connection detection circuit 241 via the signal line 243, and is transmitted from the connection detection circuit 241 to the illumination control unit 260.

The power input detection unit 245 detects the supply of power from the external power supply 420 to the power input unit 220 (therefore, the supply of power from the external power supply 420 to the cleaner body 200), and outputs the detection result to the illumination control unit 260. To do. The power input detection unit 245 includes, for example, a sensor that can detect whether or not power is input by detecting a current flowing from the power cord 320 to the power input unit 220. This sensor is composed of, for example, a current sensor.

The attitude detection unit 230, the illuminance detection unit 235, the connection detection unit 240, and the power input detection unit 245 operate with power from the secondary battery 204.

The illumination control unit 260 controls lighting and extinguishing of the illumination unit 250 according to detection results by the attitude detection unit 230, the illuminance detection unit 235, the connection detection unit 240, and the power input detection unit 245. The illumination control unit 260 turns on the illumination unit 250 with the electric power from the secondary battery 204.

The illumination unit 250 is provided so as to illuminate upward when the vacuum cleaner 100 is lit in an upright state. The illumination unit 250 is provided so as to be positioned on the upper side of the vacuum cleaner 100, for example, the upper side of the vacuum cleaner main body 200 in a state where the vacuum cleaner 100 is standing upright, and the ceiling in the upward direction is wide in that state. Desirably configured to illuminate over a range. This is because such a configuration is advantageous for grasping the surrounding situation when a power failure occurs.

When the vacuum cleaner 100 is in use, the illumination unit 250 is maintained in the off state.
When the vacuum cleaner 100 is not in use, the operation in the power failure monitoring mode is started. In this power failure monitoring mode, the illumination control unit 260 detects the occurrence of a power failure and controls the lighting unit 250 to be turned on and off.
Whether or not the vacuum cleaner 100 is in a non-use state is determined based on an operation by the operation input unit 350, for example. For example, when a predetermined time has elapsed after the fan 212 is turned off by the operation input unit 350, it is determined that the non-use state has started, and when the fan 212 is turned on by the operation input unit 350, the non-use state is immediately set. Judge that it is over.

In the power failure monitoring mode, the illumination control unit 260 monitors the outputs (indicating detection results) of the attitude detection unit 230, the illuminance detection unit 235, the connection detection unit 240, and the power input detection unit 245, and based on these outputs. The lighting unit 250 is turned on and off. Processing for this control will be described with reference to FIG.

The process in FIG. 5 is started at a predetermined time interval, for example.
First, in step ST <b> 11, it is determined whether or not the cleaner body 200 is connected to the external power supply 420 based on the output of the connection detection unit 240.
If “connected” (YES in step ST11), the process proceeds to step ST12.

In step ST12, based on the output of the power input detection unit 245, it is determined whether or not power is being supplied from the external power source 420 to the cleaner body 200.
When it is determined that “not supplied” (NO in step ST12), the process proceeds to step ST13.

In step ST13, based on the output of the illuminance detection unit 235, it is determined whether or not the illuminance around the cleaner body 200 is greater than or equal to a threshold value.
If not above the threshold (NO in step ST13), the process proceeds to step ST14.

In step ST14, based on the output of the posture detection unit 230, it is determined whether or not the vacuum cleaner 100 is in an upright state.
If it is an upright state (YES in step ST14), the process proceeds to step ST15.

In step ST15, the illumination unit 250 is turned on. That is, if it has been lit before that, the lighting state is maintained. If it has been extinguished before that, it is changed to a lighting state.

NO in step ST11 (not connected to a power source), YES in step ST12 (power is supplied), YES in step ST13 (illuminance is greater than or equal to threshold), or NO in step ST14 (not in an upright state) The process proceeds to step ST16.
In step ST16, the illumination unit 250 is turned off. That is, if the light has been turned off before that, the light-off state is maintained. If it was lit before that, it is switched to the extinguished state.

As a result of performing the processing shown in FIG. 5, the illumination control unit 260 performs the following control.
That is, the illumination control unit 260 turns on the illumination unit 250 when all of the following four conditions (a) to (d) are satisfied.
(A) From the detection result by the connection detection unit 240, it is determined that the cleaner body 200 is connected to the external power source 420.
(B) From the detection result by the power input detection unit 245, it is determined that power is not supplied from the external power source 420 to the cleaner body 200.
(C) From the detection result by the illuminance detection unit 235, it is determined that the illuminance around the cleaner body 200 is less than the threshold value.
(D) From the detection result by the posture detection unit 230, it is determined that the vacuum cleaner 100 is in an upright state.

On the other hand, when any one (at least one) of the above four conditions (a), (b), (c), and (d) is not satisfied, the illumination unit 250 is turned off.

The above conditions (a) and (b) are satisfied when a power failure occurs, and only in such a case, the illumination control unit 260 turns on the illumination unit 250.
Even if the above condition (b) is satisfied, if the above condition (a) is not satisfied, the illumination unit 250 is not turned on. This is because there is a possibility that power is not supplied from the external power source 420 because the plug 310 is not inserted into the outlet 410 because of a power failure.

In addition, even if the above conditions (a) and (b) are satisfied, the lighting control unit 260 does not light the lighting unit 250 when the above condition (c) is not satisfied. This is because the ambient light is in a bright state (a state where sunlight is received or another light is lit). In this case, even if a power failure occurs, the surroundings are bright. This is because it is not necessary to turn on the illumination unit 250.

Furthermore, even if the above conditions (a), (b), and (c) are satisfied, when the above condition (d) is not satisfied, the illumination control unit 260 does not turn on the illumination unit 250. This is to prevent the illumination light of the illumination unit 250 from directly entering the human eye even during a power failure.

Modification 1
In the above embodiment, the illumination unit 250 is turned on when all of the above conditions (a), (b), (c), and (d) are satisfied.
(B) If the conditions (a) and (b) are satisfied, the illumination unit 250 may be turned on (even if the condition (c) or (d) is not satisfied)
(B) If the conditions (a), (b), and (c) are satisfied, the illumination unit 250 may be turned on (even if the condition (d) is not satisfied)
(C) If the conditions (a), (b), and (d) are satisfied, the illumination unit 250 may be turned on (even if the condition (c) is not satisfied).

Modification 2
In the above embodiment, the power input detection unit 245 is a sensor that can detect a current flowing from the power cord 320 to the power input unit 220, and is configured by, for example, a current sensor. It operates with power from the battery 204.
However, the present invention is not limited to such a configuration.
For example, when a current from the external power supply 420 flows, a signal indicating that there is power input is output by the current, and if not, the above signal may not be output.

Modification 3
In the first embodiment, the storage mechanism 400 is provided as an accessory of the vacuum cleaner 100. However, an existing structure that can act as a support, for example, a room for storing a vacuum cleaner is provided. A wall may be used as the storage mechanism 400.

Moreover, the vacuum cleaner 100 may be configured to be independent.

Modification 4
The first embodiment has been described on the assumption that the electric vacuum cleaner is of a stick type. However, the present invention can also be applied when the electric vacuum cleaner is of a handy type. It is also applicable to the case where is a canister type. The present invention is also applicable to a vacuum cleaner (robot type vacuum cleaner) that performs autonomous cleaning.

Modification 5
Regarding the first embodiment, it has been described that the illumination unit 250 is provided so as to illuminate the upper direction when the vacuum cleaner 100 is standing upright.
When the vacuum cleaner 100 is elongated as shown in FIG. 1 and the upper end of the vacuum cleaner 100 in the storage state, that is, the position where the illumination unit 250 is provided is above the average human eye, the illumination unit 250 illuminates upward. Is provided, there is an advantage that the illumination light from the illumination unit 250 does not directly enter the human eye.

However, this point is not essential, and it may be provided so as to illuminate a predetermined direction other than the upward direction.

Modification 6
In the first embodiment, upright has been described to mean a state in which the longitudinal direction of the elongated vacuum cleaner 100 is close to the vertical direction. However, the present invention is limited to the case where the vacuum cleaner 100 is elongated. Not. In short, at the time of storage, the vacuum cleaner 100 may be configured to be placed in a predetermined posture, that is, in a state facing a predetermined direction.
In this state, the illumination unit 250 may be configured to illuminate a predetermined direction, for example, the upward direction.
In that case, the following condition (d ′) obtained by generalizing the condition (d) is used instead of the condition (d).
(D ′) From the detection result by the posture detection unit 230, it is determined that the vacuum cleaner 100 is in a state of facing a predetermined direction.

For example, when the position where the illumination unit 250 is provided is lower than the human eye, the illumination unit 250 is provided so as to illuminate the lower direction, so that the illumination light can be prevented from directly entering the human eye.

Modification 7
The present invention is also applicable when the cleaner body 200 is separable from one or more of the suction tool 340, the connecting tube 342, and the handle 330. In that case, the posture detection unit 230 detects the posture of the cleaner main body 200, and the illumination control unit 260 is in a state where the cleaner main body 200 faces a predetermined direction from the detection result by the posture detection unit 230. It will be judged whether or not.

In this case, the vacuum cleaner main body 200 may be configured to be able to maintain a predetermined posture even if not supported by the storage mechanism 400, that is, to be able to stand on its own. For example, you may have the protrusion structure which contact | abuts the floor surface and supports the vacuum cleaner main body 200 at three points in the bottom part of the vacuum cleaner main body 200. FIG.

Embodiment 2. FIG.
In the first embodiment, the storage mechanism 400 has only a function of supporting the vacuum cleaner 100. However, as shown in FIG. 6, the storage mechanism 400 may serve as a charging stand or a charging stand. good.

In this case, the

power supply terminals

404 and 405 of the storage mechanism 400 and the

power receiving terminals

224 and 225 of the cleaner body 200 are electrically connected in a state where the vacuum cleaner body 200 is supported by the storage mechanism 400. The storage mechanism 400 has a power cord 320 and a plug 310, and the plug 310 is inserted into the outlet 410.

Further, as the connection detection unit 240, a unit that detects the connection between the outlet 410 and the plug 310 and detects the connection between the

power feeding terminals

404 and 405 and the

power receiving terminals

224 and 225 is used.
When the connection is detected in both of them, it is determined that the cleaner body 200 is connected to the external power source.

In order to detect the connection between the outlet 410 and the plug 310, the contact sensor described with reference to FIG.

FIG. 7 shows a contact sensor that can be used to detect the connection between the

power supply terminals

404 and 405 and the

power reception terminals

224 and 225.
In the example of FIG. 7, the contact 221 is provided adjacent to the

power receiving terminals

224 and 225 so as to protrude from the side surface (surface of the side wall portion) 208 of the housing 207 of the cleaner body 200. . The contact 221 contacts the support surface 402 of the storage mechanism 400 when the

power receiving terminals

224 and 225 are pressed against the

power feeding terminals

404 and 405, so that the electrical connection between the

power receiving terminals

224 and 225 and the

power feeding terminals

404 and 405 is achieved. A dynamic connection is detected. A signal indicating the detection result is transmitted to the connection detection circuit 241 via the signal line 223.

The connection detection circuit 241 determines that the plug 310 is connected to the outlet 410 from the detection result transmitted through the signal line 243 and the detection result transmitted through the signal line 223 (a1), and receives power. When it is determined that the

terminals

224 and 225 are connected to the power supply terminals 404 and 405 (a2), it is determined that the cleaner body 200 is connected to the external power source 420.

That is, the connection detection circuit 241
(A1) The condition that the plug 310 is determined to be connected to the outlet 410 from the output of the contact sensor similar to FIG.
(A2) When the condition that the

power receiving terminals

224 and 225 are determined to be connected to the

power feeding terminals

404 and 405 is satisfied from the output of the contact sensor in FIG. 7, the above condition (a) is satisfied. Judge that
The connection detection circuit 241 determines that the condition (a) is not satisfied when at least one of the conditions (a1) and (a2) is not satisfied.

The determination result by the connection detection circuit 241 is transmitted to the illumination control unit 260 as the detection result of the connection detection unit 240.

The modification applicable to the first embodiment can also be applied to the second embodiment.

According to the present invention, when a power failure occurs, the lighting unit is automatically turned on, so that the situation can be quickly grasped. Moreover, since the illumination part is provided in the vacuum cleaner, a separate outlet and a separate secondary battery are unnecessary.

In addition, vacuum cleaners are used relatively frequently for cleaning, and are often connected to a power source for charging by the user, thus activating special awareness in the event of a power outage. It is possible to ensure emergency lighting.

Further, if the illumination unit 250 is turned on when the above condition (c) is satisfied, the lighting can be omitted when the periphery of the cleaner body 200 is bright, and wasteful power consumption is achieved. Can be avoided.

In addition, if the illumination unit 250 is turned on when the above condition (d), or more generally, the above condition (d ′) is satisfied, the illumination light from the illumination unit 250 is human. Can be prevented from entering the eyes directly.

In the embodiments described above, at least a part of the illumination control unit 260, the posture detection unit 230, the illuminance detection unit 235, the connection detection unit 240, and the power input detection unit 245 can be realized by a processing circuit. The processing circuit may be dedicated hardware or a CPU that executes a program stored in a memory.

When the processing circuit is a CPU, the functions of the illumination control unit 260, the attitude detection unit 230, the illuminance detection unit 235, the connection detection unit 240, and the power input detection unit 245 are realized by software, firmware, or a combination of software and firmware. Is done. Software or firmware is described as a program and stored in a memory. The processing circuit reads out and executes the program stored in the memory, thereby realizing the functions of the illumination control unit 260, the attitude detection unit 230, the illuminance detection unit 235, the connection detection unit 240, and the power input detection unit 245. That is, when the illumination control unit 260, the posture detection unit 230, the illuminance detection unit 235, the connection detection unit 240, and the power input detection unit 245 are executed by the processing circuit, their functions are executed as a result. A memory for storing the program. These programs can also be said to cause a computer to execute a processing method or a procedure in the lighting control method implemented by the lighting control unit 260.

In addition, some of the functions of the illumination control unit 260, the attitude detection unit 230, the illuminance detection unit 235, the connection detection unit 240, and the power input detection unit 245 are realized by dedicated hardware, and part of them are software or firmware It may be realized.
As described above, the processing circuit can realize the functions described above by hardware, software, firmware, or a combination thereof.

FIG. 8 shows an example of a configuration when the function of the illumination control unit 260 is realized by a computer (indicated by reference numeral 50) including a single CPU that constitutes the processing circuit.
A computer 500 shown in FIG. 8 includes a CPU 510, a memory 520, input interfaces 531 to 534, and an output interface 540, which are connected by a bus 550.
Signals (detection results) from the attitude detection unit 230, the illuminance detection unit 235, the connection detection unit 240, and the power input detection unit 245 in FIG. 3 are input to the input interfaces 531 to 534, respectively.

The CPU 510 operates in accordance with a program stored in the memory 520, performs the above-described illumination control unit 260 on the signals (detection results) input via the input interfaces 531 to 534, and displays the determination results. Based on this, control for turning on or off the illumination unit 250 is performed. That is, a control signal generated based on the determination result is supplied to the illumination unit 250 via the output interface 540, and the illumination unit 250 is turned on or off.

The content of processing by the CPU 510 is the same as that described with reference to FIG. Data generated in the course of processing is held in the memory 520.

The same effect as described for the illumination control unit 260 can be obtained for a program that causes a computer to execute processing in the illumination control method performed by the illumination control unit 260.

The same applies to the case where the functions of the attitude detection unit 230, the illuminance detection unit 235, the connection detection unit 240, and the power input detection unit 245 are realized by a processing circuit.

100 electric vacuum cleaner, 200 vacuum cleaner body, 202 battery housing part, 204 secondary battery, 206 charge control part, 207 housing, 208 side, 210 electric blower, 212 fan, 214 fan motor, 216 motor control part, 220 power Input unit, 224, 225 power receiving terminal, 230 attitude detection unit, 235 illuminance detection unit, 240 connection detection unit, 241 connection detection circuit, 242 contactor, 243 signal line, 245 power input detection unit, 250 illumination unit, 260 illumination control Part, 310 plug, 320 power cord, 330 handle, 340 suction tool, 342 connecting tube, 344 dust separation and accumulation part, 350 operation input part, 400 storage mechanism, 402 support surface, 404, 4 5 feeding terminal, 410 outlets, 420 external power supply, 500 computer, 510 CPU, 520 memory, 531-534 input interface, 540 an output interface, 550 bus.

Claims

A secondary battery housing part for housing the secondary battery;
A charge control unit that charges the secondary battery with power from an external power source;
A vacuum cleaner body comprising an electric blower driven by the power of the secondary battery,
An illumination unit that illuminates the periphery of the vacuum cleaner body;
An electric vacuum cleaner further comprising: an illumination control unit that turns on the illumination unit with the power of the secondary battery when a power failure of the external power source is detected.
A connection detector for detecting connection of the vacuum cleaner body to the external power source;
A power input detection unit that detects supply of power from the external power source to the cleaner body;
The vacuum cleaner according to claim 1, wherein the illumination control unit detects a power failure of the external power source based on a detection result by the connection detection unit and a detection result by the power input detection unit.
The illumination control unit monitors the detection result by the connection detection unit and the detection result by the power input detection unit,
From the detection result by the connection detection unit, the condition (a) that it is determined that the cleaner body is connected to the external power source, and from the detection result by the power input detection unit, the vacuum cleaner from the external power source. Condition (b) that it is determined that power is not supplied to the main body
When both are satisfy | filled, the said illumination control part makes the said illumination part light. The vacuum cleaner of Claim 2 characterized by the above-mentioned.
The vacuum cleaner according to claim 3, wherein the lighting control unit turns off the lighting unit when at least one of the conditions (a) and (b) is not satisfied.
It further has an illuminance detector that detects the illuminance around the vacuum cleaner body,
The illumination control unit monitors the detection result by the illuminance detection unit, and in addition to the above conditions (a) and (b),
Condition (c) that it is determined from the detection result by the illuminance detection unit that the illuminance around the cleaner body is less than a threshold value.
The vacuum cleaner according to claim 3, wherein the lighting unit is turned on when is satisfied.
The vacuum cleaner according to claim 5, wherein the lighting control unit turns off the lighting unit when at least one of the above conditions (a), (b), and (c) is not satisfied.
It further has an attitude detection unit that detects the attitude of the vacuum cleaner,
The illumination control unit monitors the detection result by the posture detection unit, and in addition to the above conditions (a) and (b),
Condition (d ′) that it is determined from the detection result by the posture detection unit that the vacuum cleaner is in a predetermined direction.
The vacuum cleaner according to claim 3, wherein the lighting unit is turned on when is satisfied.
The vacuum cleaner according to claim 7, wherein the lighting control unit turns off the lighting unit when at least one of the above conditions (a), (b), and (d ') is not satisfied.
The vacuum cleaner according to claim 7 or 8, wherein the vacuum cleaner has an elongated shape, and the state facing the predetermined direction is an upright state.
10. The vacuum cleaner according to claim 9, wherein the illumination unit is provided to illuminate upward when the vacuum cleaner is in an upright state.