JP2004105273A - Charging type vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a charging type vacuum cleaner capable of operating a cleaner body while being mounted on a charger by determining that the body is in the operation state on the charger side to eliminate the trouble of detaching/attaching, and capable of avoiding such deficiency as misjudgment of the charging state and deterioration of a battery caused by the simultaneous charging and discharging. <P>SOLUTION: A body mounting detection means 12 and a body operation state detection means 16 are disposed inside the charger 11. Since the operation state of the cleaner body 1 is determined by the operation state determining means 16 while it is determined by the body mounting detection means 12 that the cleaner body 1 is mounted on the charger 11, it is not necessary to detach the cleaner body 1 from the charger 11 when the cleaner body 1 is used. Further, such deficiency as the misjudgment of the charging state of the battery 2 because of the discharging operation and deterioration of the battery 2 caused by the simultaneous charging and discharging for a long period of time can be avoided. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rechargeable vacuum cleaner in general households, particularly using a secondary battery as a power source.
[0002]
[Prior art]
2. Description of the Related Art In recent years, vacuum cleaners using a secondary battery (hereinafter referred to as a battery) represented by a nickel-metal hydride secondary battery or a nickel cadmium secondary battery as a power source have been actively developed. The structure of this type of rechargeable vacuum cleaner will be described with reference to FIGS. Reference numeral 101 denotes a cleaner main body (hereinafter referred to as a main body); 102, a battery serving as a power supply housed in the main body 101; and 103, an electric blower for generating a suction force. Reference numeral 104 denotes a dust collection chamber for collecting dust sucked into the main body 101. Reference numeral 105 denotes a hose, and reference numeral 106 denotes a hand-held operation unit connected to one end of the hose 105 for issuing an operation state command. 107 is an extension tube, and 108 is a floor suction tool. Reference numeral 109 denotes a main body control unit that drives and controls the electric blower 103, and 110 denotes a battery voltage detection unit that detects the voltage of the battery 102. Reference numeral 111 denotes a charger, and reference numeral 112 denotes a battery attachment detecting unit that detects that the main body 101, that is, the battery 102 is attached to the charger. Reference numeral 113 denotes charger battery voltage detecting means for detecting the voltage of the battery 102, and reference numeral 114 denotes battery temperature detecting means for determining the battery temperature from the thermistor of the battery 102. Reference numeral 115 denotes charging control means for charging the battery 102, and reference numeral 116 denotes power cutoff means for automatically shutting off power supply to the cleaner main body 111 when the cleaner main body 101 is mounted on the charger 111.
[0003]
The operation of charging the battery 102 is performed as follows. When the main body 101 is mounted on the charger 111, the battery mounting detecting means 112 detects that the battery 102 is mounted, and the charging control means 115 charges while checking the state of the battery such as voltage and temperature by the battery state detecting means 113. I do. The operation of the vacuum cleaner, which is also the discharging operation of the battery 102, is as follows. When the user operates the hand operation unit 106, the main body control unit 109 supplies electric power from the battery 102 to the electric blower 103, and the electric blower 103 starts operating. As a result, air suction occurs, and dust is sucked from the floor suction tool 108 into the dust collection chamber 104 in the main body 101 via the extension pipe 107 and the hose 105. Regarding the control related to the discharge, the battery voltage is detected by the battery voltage detection means 110 in order to prevent the deterioration of the battery, and when the battery voltage becomes equal to or less than a predetermined voltage value, the discharge, that is, the operation is stopped, or the remaining amount display is performed. Ingenuity such as doing is made. When the cleaner main body 101 is mounted on the charger 111, the power supply to the main body control means 109 is also stopped by the power cutoff means 116 constituted by a switch to stop the operation of the main body, and the battery 102 is discharged by discharging. Various measures have been taken to prevent the battery 102 from deteriorating due to simultaneous temperature rise and temperature rise of the battery 102 due to charging (see, for example, Patent Document 1).
[0004]
[Patent Document 1]
JP-A-2002-168193
[Problems to be solved by the invention]
However, in the above-described conventional configuration, even when the hose 105 of the cleaner main body 101 attached to the charger 111 can be directly cleaned by extending the hose 105, the cleaner main body 101 is removed from the charger 111 and then driven. However, there is a problem that the labor of re-attaching is required. In addition, in a configuration in which charging is performed while completely ignoring the operation of the cleaner main body 101, there has been a problem that erroneous determination of the charged amount and deterioration of the battery are caused.
[0006]
The present invention has been made to solve such a problem, and by judging that the main body is in an operation state on the charger side, it is possible to operate the main body while the main body is attached to the charger. It is an object of the present invention to provide a rechargeable vacuum cleaner capable of avoiding troubles such as erroneous determination of a charge amount and deterioration of a battery due to simultaneous charging and discharging, while saving trouble of attaching and detaching.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention includes a main body having a built-in electric blower for generating a suction wind, a battery for driving the electric blower, and a charger for charging the battery, wherein the charger comprises the charger A rechargeable vacuum cleaner having a main body mounting detecting means for detecting the mounting of the main body to the main body and an operating state determining means for determining an operating state of the main body. When using the main body, it is not necessary to always remove the main body from the charger. Even after charging, you can move on to the charging operation without any hassle of mounting, and the battery operation may be incorrectly determined by the discharging operation, or the battery may deteriorate due to simultaneous charging and discharging for a long time. To provide a rechargeable vacuum cleaner capable of avoiding the problem.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention includes a main body having a built-in electric blower that generates a suction wind, a battery that drives the electric blower, and a charger that charges the battery. A rechargeable vacuum cleaner having a main body mounting detecting means for detecting the mounting of the main body to the main body and an operating state determining means for determining an operating state of the main body. When using the main body, it is not necessary to always remove the main body from the charger. Even after charging, you can move on to the charging operation without any hassle of mounting, and the battery operation may be incorrectly determined by the discharging operation, or the battery may deteriorate due to simultaneous charging and discharging for a long time. Can be provided.
[0009]
The invention according to claim 2 of the present invention has voltage change judging means for obtaining information on a change in the battery voltage applied to the charger, and the operation state judging means receives the output of the voltage change judging means. , To determine the operating state of the main unit, it is not necessary to remove the charger from the charger when using the main unit, it is possible to proceed to the charging operation as it is without the hassle of mounting after use, and the discharge operation It is possible to provide a rechargeable vacuum cleaner capable of avoiding problems such as deterioration of a battery due to erroneous determination of a charge amount of the battery or simultaneous charging and discharging for a long time.
[0010]
The invention according to claim 3 of the present invention includes a main body having a built-in electric blower for generating a suction wind, a battery for driving the electric blower, and a charger for charging the battery, wherein the main body is mounted on the charger. When operating with the battery, the battery is a rechargeable vacuum cleaner that is not charged by the charger, so there is no need to remove the battery from the charger when using the main body, and without having to put it on after using it It is possible to provide a rechargeable vacuum cleaner which can directly shift to a charging operation and can avoid a problem that a battery is deteriorated by performing charging and discharging simultaneously.
[0011]
According to a fourth aspect of the present invention, there is provided an operation signal superimposing means for superimposing an operation signal indicating an operation state of the main body, and a superimposition signal judging means for judging an operation state of the main body from the superimposed operation signal. The operation of the main unit is judged from the output of the signal judgment means.There is no need to remove the main unit from the charger when using the main unit. In addition, it is possible to provide a rechargeable vacuum cleaner capable of avoiding problems such as erroneous determination of the charge amount of a battery by a discharging operation and deterioration of the battery due to simultaneous charging and discharging for a long time.
[0012]
According to a fifth aspect of the present invention, there is provided an operation signal transmitting means for transmitting an operation signal indicating an operation state of the main body, and an operation signal receiving means for receiving the operation signal. Judgment of the operation state, there is no need to remove the battery from the charger when using the main body, it is possible to proceed to the charging operation without the hassle of mounting after use, and to charge the battery by the discharging operation It is possible to provide a rechargeable vacuum cleaner capable of avoiding problems such as battery deterioration due to erroneous determination of the amount or simultaneous charging and discharging for a long time.
[0013]
The invention according to claim 6 of the present invention includes a full-charge judging means for judging a full-charge state of a battery in a charger, and a full-charge judgment permitting means for permitting whether or not the full-charge judging means makes a judgment. If you are driving with the charger attached, it will not allow a full charge judgment, so you do not need to remove it from the charger when using the main unit, and after using it you will not have to worry about attaching it It is possible to provide a rechargeable vacuum cleaner capable of shifting to a charging operation and avoiding a problem of erroneously determining a charge amount of a battery by a discharging operation.
[0014]
The invention according to claim 7 of the present invention includes a charging control unit for charging a battery in a charger, and a charging control power supply unit for supplying power to the charging control unit, and the main body remains mounted on the charger. When driving, it shuts off the power supply to the charging control means, so there is no need to remove the battery from the charger when using the main unit, and the charging operation can be performed without using it after use. A rechargeable vacuum cleaner that can be transferred and that avoids the problem of battery deterioration due to simultaneous charging and discharging, in which case the power supply to the charging control means can be cut off, thereby reducing power consumption. Can be provided.
[0015]
The invention according to claim 8 of the present invention is provided with operation stop judging means for judging that the main body operation has been stopped from the output of the operation state judging means in the charger, and restarts charging when the operation is stopped. Therefore, when using the main body, it is not necessary to remove the battery from the charger, and after using it, it is possible to move on to the charging operation as it is without the hassle of attaching it, and erroneously judge the charge amount of the battery by the discharging operation, It is possible to provide a rechargeable vacuum cleaner capable of avoiding a problem such as deterioration of a battery due to simultaneous charging and discharging for a long time.
[0016]
According to a ninth aspect of the present invention, when the main body is operated based on the output of the operating state determining means in the charger, a complete charging stop means for invalidating the charge amount determination up to that time is provided. When the operation is stopped from the output of the operation stop judgment means provided in the device, charging starts from the beginning, so there is no need to remove it from the charger when using the main unit, and it is troublesome to attach it after use It is possible to provide a rechargeable vacuum cleaner which can directly proceed to the charging operation without obtaining the information, and can avoid the problem of erroneously determining the charge amount of the battery by the discharging operation since recharging is started from the beginning.
[0017]
The invention according to claim 10 of the present invention provides a mounting operation timing means for measuring the operation time from the start of operation in a state where the main body is mounted in the charger, and a discharge amount of the battery from the output of the operation state determination means. When the operation is stopped based on the output of the operation stop judging means provided in the charger, the charging control is performed by reflecting the discharge amount, and the main body is used. Sometimes it is not necessary to remove the battery from the charger, and after using it, it is possible to move on to the charging operation without the hassle of attaching it. By performing the operations at the same time, problems such as deterioration of the battery can be avoided, and a rechargeable vacuum cleaner capable of more efficient recharging can be provided.
[0018]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. Reference numeral 1 denotes a cleaner main body (hereinafter referred to as a main body), reference numeral 2 denotes a rechargeable battery serving as a power supply housed in the main body 1, and reference numeral 3 denotes an electric blower for generating a suction force. Reference numeral 4 denotes a dust collecting chamber for collecting dust sucked into the main body 1. Reference numeral 5 denotes a hose, and reference numeral 6 denotes a hand-held operation unit connected to one end of the hose 5 for issuing an operation state command. Reference numeral 7 denotes an extension pipe, and reference numeral 8 denotes a floor suction tool. 9 is a main body control means for controlling the drive of the electric blower 3, and 10 is a main body battery voltage detecting means for detecting the voltage of the battery 2. Reference numeral 11 denotes a charger, and reference numeral 12 denotes a battery attachment detecting unit that detects that the main body 1, that is, the battery 2 is attached to the charger. Reference numeral 13 denotes a charger battery voltage detecting unit that detects the voltage of the battery 2, and 14 denotes a battery temperature detecting unit that determines the battery temperature from the thermistor of the battery 2. Reference numeral 15 denotes charging control means for charging the battery 2, and reference numeral 16 denotes operating state determining means for determining an operating state of the main body 1. Reference numeral 17 denotes voltage change determination means for detecting a voltage change due to the start of operation of the main body attached to the charger from a change in the output of the charger battery voltage detection means 13. A driving signal superimposing means 18 superimposes a driving signal when the electric blower 3 is driven in the main body 1 on the thermistor terminal of the battery 2, and 19 denotes a driving signal superimposed in the charger 11. It is a superimposed signal determining means for determining a signal.
[0019]
Hereinafter, the operation will be described. The operation as a vacuum cleaner is the same as in the conventional example. When the user operates the operation unit 6 at hand, the main body control unit 9 supplies electric power from the battery 2 to the electric blower 3, and the electric blower 3 starts operating. As a result, suction by air occurs, and dust is sucked from the floor suction tool 8 to the dust collection chamber 4 in the main body 1 via the extension pipe 7 and the hose 5.
[0020]
When the main body 1 is connected to the charger 11, the battery mounting detector 12 detects that the battery 2 is mounted, and the charging controller 15 detects the voltage or battery temperature detected by the charger battery voltage detector 13. Charging is performed while confirming the temperature detected by the detecting means 14. Reference numeral 22 denotes a full charge determination permission unit for permitting or prohibiting the complete determination of charging, and reference numeral 23 denotes a charge permission unit for permitting or prohibiting the charging itself.
[0021]
When the main operation unit 6 is input and the main body control means 9 in the main body 1 outputs a drive signal to the electric blower 3 in a state where the main body 1 is connected to the charger 11, power is supplied from the battery 2 to The blower 3 starts operating. By this driving, the discharge of the battery 2 starts, so that the voltage of the battery 2 decreases. The voltage change judging means 17 judges the voltage change in which the voltage of the battery 2 has dropped, and from this output, the operating state judging means 16 judges that the main body 1 is in the operating state with the charger 11 connected. The full charge determination permission means 22 does not make a full charge determination during operation. As a result, it is possible to prevent the erroneous determination of the charge amount, that is, the charge completion, by the discharging operation.
[0022]
When the electric blower 3 is driven in the main body 1, the drive signal is superimposed on the thermistor terminal of the battery 2 by the drive signal superimposing means 18, and the superimposed signal from the thermistor terminal is superimposed in the charger 11 by the superimposed signal determination means 19. The operation state judgment means 16 judges the operation of the main body 1 from this output, and the charging permission means 23 prevents the main body 1 from being charged during operation. Thereby, it is possible to avoid deterioration of the battery due to simultaneous charging and discharging for a long time. Further, charging power supply interrupting means 24 for interrupting the power supply to the charging control circuit is provided, and the charging power supply interrupting means 24 receives the output from the charging permitting means 23 and stops charging the power of the charging control circuit while stopping charging. Supply can also be cut off to reduce power consumption.
[0023]
As a method of transmitting the operating state of the main body 1 to the charger 11, a drive signal transmitting means 20 is provided in the main body 1, and a drive signal receiving means 21 is provided in the charger 11. In response to the output, the driving signal transmitting unit 20 transmits a driving state signal to the charger 11 side, and the driving signal receiving unit 21 receives the signal on the charger 11 side and transmits the signal to the operating state determining unit 16. Good.
[0024]
Further, the charger 11 is provided with operation stop control means 25 for performing a process when the operation of the main body 1 is changed from the operation to the stop state, and when the main body 1 is stopped based on the judgment of the operation state judgment means 16, the operation is stopped. The control means 25 permits the judgment for the configuration prohibited by the full charge judgment permission means 22, and permits the charging for the configuration prohibited charging by the charge permission means 23. Output to At this time, the interruption of power supply to the charging control circuit by the charging power supply interruption means 24 is also released.
[0025]
Further, in the configuration in which charging is prohibited during the operation of the main body 1, a complete charging stop means 26 for completely canceling the battery information by the previous charging control is provided, and when the operation of the main body 1 is stopped, the charging control is initialized. , Reliable charge control can be performed without being affected by a change in the temperature of the battery 2 due to discharge or the like. Alternatively, the discharge amount of the battery 2 is calculated from the discharge current during the operation and the operation time by providing the discharge amount calculating means 27, and after the operation of the main body 1 is stopped, the discharge amount up to that time is transmitted to the charge control means 15, The charging control means 15 resumes charging in consideration of the amount, so that efficient charging control can be obtained.
[0026]
In addition, by performing these controls, as shown in FIG. 2, if the charger 11 can be attached to and detached from the cleaner main body 1 and the operation can be performed with the charger 11 attached, every time the attachment / detachment to the charger 11 is used. It is also possible to provide a convenient rechargeable vacuum cleaner which is used only when it is necessary to remove it instead of needing it.
[0027]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, when using a main body, it is not necessary to remove | remove from a charger by all means, it can transfer to a charging operation as it is, without the trouble of mounting after use, and the charge amount of a battery is wrong by discharge operation. It is possible to provide a rechargeable vacuum cleaner capable of avoiding problems such as deterioration of a battery by performing judgment and performing charging and discharging at the same time for a long time.
[Brief description of the drawings]
FIG. 1 is a system block diagram showing connection between a main body and a charger according to an embodiment of the present invention. FIG. 2 is an external perspective view of the entire vacuum cleaner. FIG. FIG. 4 is a system block diagram showing connection. FIG. 4 is an external perspective view of the entire conventional vacuum cleaner.
2 Battery 3 Electric blower 9 Main body control means 12 Charger attachment detection means 15 Charge control means 16 Operating state judgment means 17 Voltage change judgment means 18 Drive signal superimposition means 19 Superposition signal judgment means 20 Drive signal transmission means 21 Drive signal reception means 22 Full charge determination permission means 23 Charge permission means 24 Charge power supply cutoff means 25 Operation stop control means 26 Complete charge stop means 27 Discharge amount calculation means

Claims (10)

A main body having a built-in electric blower that generates a suction wind, a battery that drives the electric blower, and a charger that charges the battery, wherein the charger detects mounting of the main body to the charger. A rechargeable vacuum cleaner comprising: a detection unit; and an operation state determination unit that determines an operation state of the main body. A voltage change judging means for obtaining information on a change in a battery voltage applied to the charger, wherein an operation state judgment means receives an output of the voltage change judgment means to judge an operation state of the main body. The rechargeable vacuum cleaner according to 1. A main body having a built-in electric blower for generating a suction wind, a battery for driving the electric blower, and a charger for charging the battery, wherein the main body is operated while being mounted on the charger, A rechargeable vacuum cleaner in which a battery is not charged by the charger. An operation signal superimposing means for superimposing an operation signal indicating an operation state of the main body; and a superimposition signal judging means for judging an operation state of the main body from the superimposed operation signal, and judging an operation state of the main body from an output of the superimposition signal judgment means. The rechargeable vacuum cleaner according to claim 3, wherein: 4. An operation signal transmitting means for transmitting an operation signal indicating an operation state of the main body, and an operation signal receiving means for receiving the operation signal, wherein the operation state of the main body is determined from an output of the operation signal receiving means. Rechargeable vacuum cleaner. The battery charger includes a full charge determination means for determining a full charge state of the battery and a full charge determination permission means for permitting whether or not the full charge determination means makes a determination, and operates while the main body is attached to the charger. The rechargeable vacuum cleaner according to any one of claims 3 to 5, wherein a full charge determination is not permitted when the battery is present. The battery charger includes a charge control unit for charging a battery and a charge control power supply unit for supplying power to the charge control unit. When the main body is operated while being attached to the charger, the charge control unit includes a charge control unit. The rechargeable vacuum cleaner according to any one of claims 3 to 6, wherein supply of power to the rechargeable vacuum cleaner is interrupted. 8. The battery charger according to claim 1, further comprising an operation stop judging means for judging that the main body operation has been stopped from an output of the operation state judging means, and restarting the charging when the operation is stopped. The rechargeable vacuum cleaner according to claim 1. When the main body is operated from the output of the operation state determination means in the charger, a complete charge stop means for invalidating the charge amount determination up to that time is provided, and then the output of the operation stop determination means provided in the charger is provided. The rechargeable vacuum cleaner according to any one of claims 1 to 8, wherein the charging is started from an early stage when the operation is stopped from the beginning. A mounting operation timing means for measuring the operation time from the start of operation in a state where the main body is mounted in the charger, and a discharge amount calculation means for calculating a discharge amount of the battery from an output of the operation state determination means, and thereafter The charging according to any one of claims 1 to 8, wherein when the operation is stopped from the output of the operation stop determination means provided in the charger, the charge control is performed by reflecting the discharge amount. Type vacuum cleaner.

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