JP2000316767A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner reduced in the variation of operation performance by the variation of the electric characteristic (power) of an electric blower. SOLUTION: The electric power of an electric blower 10 sucking dust is detected by a power detecting means 9 and compared with a prescribed reference value by a microcomputer 12 to control the power of the blower 10 via a control means. The reference value to be compared with the output of he means 9 is previously stored in a previously storable nonvolatile memory 13 and the stored contents in the memory 13 are read by the microcomputer 12 at a proper time is the use time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner for controlling electric power of an electric blower by a microcomputer.

[0002]

2. Description of the Related Art Conventionally, this type of vacuum cleaner has been configured as shown in FIG. Hereinafter, the configuration will be described.

As shown in FIG. 5, an electric blower 1 is controlled by a control means 2 connected in series, and the control means 2 is controlled by a microcomputer 3.
The microcomputer 3 is connected to a power detecting means 5 for detecting the power of the electric blower 1, a voltage detecting means 6 for detecting a change in the power supply voltage of the commercial power supply 4, and a temperature detecting means 7 for detecting an ambient temperature. The electric power control of the electric blower 1 and the garbage bag (not shown) are compared with the reference electric power, the reference voltage and the reference temperature written in the microcomputer 3 in advance.
The notification time of the notifying means 8 for notifying the replacement time is controlled.

[0004]

In such a conventional vacuum cleaner, reference values such as a reference power, a reference voltage, and a reference temperature must be written in the microcomputer 3 in advance. The value must be a central value, and when producing a large number of control circuits or the main body of the vacuum cleaner, it is not possible to absorb variations in parts, variations in power of the electric blower 1, etc. However, when the program needs to be performed, the program of the microcomputer 3 must be rewritten, so that it takes a very long time.

The present invention solves the above-mentioned conventional problems. A reference value to be controlled by a microcomputer is written in a non-volatile memory, and the reference value is set simultaneously with the production of the main body of the vacuum cleaner. The purpose is to absorb the power variation.

[0006]

According to the present invention, in order to attain the above object, the power of an electric blower for sucking dust is detected by a power detecting means, and the detected power is compared with a predetermined reference value by a mimalo computer. Is configured to control the power of the electric blower via a memory, and a reference value to be compared with the output of the power detection means is stored in advance in a non-volatile memory that can be stored in advance, and the stored content of the non-volatile memory is appropriately used when used. It is configured to be read into a microcomputer.

Thus, by writing the reference value to be compared with the output of the power detection means when controlled by the microcomputer to the non-volatile memory, the reference value can be set at the same time as the production of the main body of the vacuum cleaner. In addition, power variations of the electric blower can be absorbed.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention provides an electric blower for sucking dust, electric power detecting means for detecting electric power of the electric blower, and an amount of dust sucked into the dust collecting chamber. Notifying means for notifying, a control means for controlling the electric blower, a microcomputer for controlling the power and the like of the electric blower in comparison with a predetermined reference value, and a nonvolatile memory which can be stored in advance, A reference value to be compared with the output of the power detection means is stored in a nonvolatile memory in advance, and the content stored in the nonvolatile memory is read into a microcomputer at the time of use, and is controlled by the microcomputer. By writing the reference value to the non-volatile memory at the same time, the reference value can be set at the same time as the production of the vacuum cleaner main body. Can absorb the power variation of the machine, it is possible to a high accuracy control,
Various information can be written on the production line and can be easily changed. In addition, it is possible to absorb variations in the notification points of the notification unit that reports the amount of dust accumulated in the dust bag.

According to a second aspect of the present invention, in the first aspect of the present invention, information of a reference electric power value of the electric blower is stored in a nonvolatile memory in advance, and the electric power value of the electric blower is stored. By writing in a nonvolatile memory as a reference value for control by the microcomputer, the reference value can be set at the same time as the production of the main body of the vacuum cleaner, and variations in parts and power in the electric blower can be absorbed.

According to a third aspect of the present invention, in the first or second aspect of the present invention, there is provided a voltage detecting means for detecting a power supply voltage, and information of a reference voltage is stored in a nonvolatile memory in advance. By writing the voltage detected by the voltage detecting means and the power value of the electric blower into a nonvolatile memory as a reference value when controlling by the microcomputer, the reference value can be set simultaneously with the production of the cleaner body. It is possible to absorb variations in components, power in the electric blower, and power supply voltage.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, there is provided a temperature detecting means for detecting a temperature, wherein information of a reference temperature is stored in a nonvolatile memory in advance. Yes, by writing the temperature detected by the temperature detecting means and the power value of the electric blower to the nonvolatile memory as a reference value when controlling by the microcomputer, the reference value can be set simultaneously with the production of the main body of the cleaner. In addition to absorbing component variations, power variations of the electric blower, and temperature variations due to the variations of the electric blower, the operating noise can be stabilized, and the temperature of the electric blower must not be too high. The electric blower can be prevented from being damaged.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) As shown in FIG. 1, the power detecting means 9 is composed of a current sensor or the like, is connected in series to an electric blower 10, and further has a control means 11 connected in series.
The control means 11 is connected to the microcomputer 12,
A nonvolatile memory 13 is connected to the microcomputer 12.

In the non-volatile memory 13, the value detected by the power detecting means 9 when the electric blower 10 is controlled at a predetermined constant air volume during the production of the main body of the cleaner is stored in the switch 1.
By performing an operation such as pressing 4, writing can be performed, and the contents stored in the nonvolatile memory 13 can be read at an arbitrary timing during the operation of the microcomputer 12. The notifying means 15 is for notifying the amount of refuse accumulated in the refuse bag, and is connected to the microcomputer 12.

The operation of the above configuration will be described. First,
At the time of production of the main body of the vacuum cleaner, the electric blower 10 is controlled in a state where the air flow is fixed to a predetermined constant air amount (for example, the air amount for notifying the amount of refuse accumulated in the garbage bag by the notification means 15), and the operator presses the switch 14 Thus, the value detected by the power detection means 9 is written in the nonvolatile memory 13 in advance as a reference value for control by the microcomputer 12.

Next, when the microcomputer 12 operates, the current output of the power detection means 9 and the nonvolatile memory 13
Is compared with the stored contents (reference values) written in the microcomputer 1 and if the respective values are different, the microcomputer 1
2 controls so that the notification period of the notification means 15 becomes appropriate.

Therefore, it is possible to absorb variations in electric power of the components and the electric blower 10 and easily change various information (reference values) at the time of production of the main body of the cleaner. Further, it is possible to absorb variations in the notification points of the notification means 15 for notifying the amount of dust accumulated in the garbage bag.

(Embodiment 2) As shown in FIG. 2, when the voltage of the commercial power supply 17 changes, the voltage detecting means 16 inputs different outputs to the microcomputer 12 according to the width of the change, and stores it in the nonvolatile memory 13 in advance. The value detected by the voltage detecting means 16 is stored. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described. First,
The non-volatile memory 13 notifies the data of the voltage detecting means 16 corresponding to the change of the commercial power supply 17 in advance, and a predetermined constant air volume (for example, the amount of dust accumulated in the garbage bag) at the time of production of the cleaner body by the notifying means 15. Electric blower 10)
Is stored in the nonvolatile memory 13 in advance as the reference value for controlling the microcomputer 12 with the data of the power detection means 9 when the control is performed.

Next, when the microcomputer 12 is operating, the current output of the voltage detecting means 16 and the current output of the power detecting means 9 are compared with the stored contents (reference values) written in the nonvolatile memory 13. If the values are different, the microcomputer 12 controls so that the notification period of the notification means 15 becomes appropriate.

Therefore, it is possible to correct variations in the power of the parts and the electric blower 10, and variations in the notification points of the notification means 15 due to variations in the power supply voltage.

(Embodiment 3) As shown in FIG. 3, the power detecting means 9 is composed of a current sensor or the like, is connected in series to the electric blower 10, and further has the control means 11 connected in series.
The control means 11 is connected to the microcomputer 12,
A nonvolatile memory 13 is connected to the microcomputer 12.

The non-volatile memory 13 stores the value detected by the power detection means 9 when the electric blower 10 is controlled at a predetermined constant power during the production of the cleaner body.
By performing an operation such as pressing 4, writing can be performed, and the contents stored in the nonvolatile memory 13 can be read at an arbitrary timing during the operation of the microcomputer 12.

The operation of the above configuration will be described. First,
When the main body of the vacuum cleaner is produced, the electric blower 10 is controlled in a state where the electric blower is fixed to a predetermined constant electric power (for example, the open electric power at the time of strong operation), and the switch 14 is pressed. As a reference value for control by the control unit 12, the data is written in the nonvolatile memory 13 in advance.

Next, when the microcomputer 12 operates, the current output of the power detection means 9 and the nonvolatile memory 13
Is compared with the stored contents (reference values) written in the microcomputer 1 and if the respective values are different, the microcomputer 1
2 sends a signal to the control means 11 and controls the electric blower 10 so that the electric power becomes appropriate.

Therefore, it is possible to make the power fluctuation during the operation of the cleaner main body due to the power fluctuation of the parts and the electric blower 10 constant, and to stabilize the operation sound.

(Embodiment 4) As shown in FIG. 4, the temperature detecting means 18 is arranged, for example, in the vicinity of the electric blower 10, inputs a temperature change of the electric blower 10 to the microcomputer 12, and stores the temperature change in the nonvolatile memory 13. The value detected by the temperature detecting means 18 is stored in advance. Other configurations are the same as those of the third embodiment.

The operation of the above configuration will be described. First,
The data of the temperature detecting means 18 corresponding to the change of the temperature of the electric blower 10 in advance in the non-volatile memory 13 and the data of the power detecting means 9 when the electric blower 10 is controlled at a predetermined constant power during the production of the main body of the cleaner. Is previously written in the nonvolatile memory 13 as a reference value for control by the microcomputer 12.

Next, when the microcomputer 12 is operating, the current output value of the temperature detecting means 18 and the current output value of the power detecting means 9 are compared with the stored contents (reference values) written in the nonvolatile memory 13, The microcomputer 12 sends a signal to the control means 11 so as to correspond to each value, and controls the electric blower 10 to make the electric power appropriate.

Therefore, it is possible to make the power fluctuation during operation of the cleaner main body due to the power fluctuation of the electric blower 10 constant, to stabilize the operation sound, and to prevent the temperature of the electric blower 10 from becoming too high. Thus, the electric blower 10 can be prevented from being damaged.

[0031]

As described above, according to the first aspect of the present invention, the electric blower for sucking the dust, the electric power detecting means for detecting the electric power of the electric blower, and the electric blower are drawn into the dust collecting chamber. Notifying means for notifying the amount of dust, control means for controlling the electric blower, a microcomputer for controlling electric power of the electric blower in comparison with a predetermined reference value, and a nonvolatile memory which can be stored in advance. A reference value to be compared with the output of the power detection means is stored in advance in the nonvolatile memory, and the content stored in the nonvolatile memory is read into the microcomputer at appropriate times when used. By writing the reference value for control to the non-volatile memory, the reference value can be set at the same time as the production of the main body of the vacuum cleaner. Can absorb the power variation of the dynamic blower, it is possible to a high accuracy control, can write various information on the production line, it can be easily changed. In addition, it is possible to absorb variations in the notification points of the notification unit that reports the amount of dust accumulated in the dust bag.

According to the second aspect of the present invention, since the information on the power value of the electric blower serving as the reference is stored in the nonvolatile memory in advance, the reference value for controlling the power value of the electric blower by the microcomputer is used. By writing the value in the non-volatile memory, the reference value can be set at the same time as the production of the main body of the vacuum cleaner, and the variation in parts and the variation in power of the electric blower can be absorbed.

According to the third aspect of the present invention, there is provided a voltage detecting means for detecting a power supply voltage, and information of a reference voltage is previously stored in a nonvolatile memory. And the power value of the electric blower are written in a non-volatile memory as a reference value when controlled by a microcomputer, so that the reference value can be set at the same time as the production of the main body of the vacuum cleaner. In addition, variations in power supply voltage can be absorbed.

According to the fourth aspect of the present invention, there is provided the temperature detecting means for detecting the temperature, and the reference temperature information is stored in the nonvolatile memory in advance. By writing the power value of the electric blower and the reference value when controlling with the microcomputer in the non-volatile memory, the reference value can be set at the same time as the production of the main body of the vacuum cleaner. In addition to absorbing temperature variations due to variations in the electric blower, the operating sound can also be stabilized, and the temperature of the electric blower can be prevented from becoming too high, thereby preventing damage to the electric blower. be able to.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram of a vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a block circuit diagram of a vacuum cleaner according to a second embodiment of the present invention.

FIG. 3 is a block circuit diagram of a vacuum cleaner according to a third embodiment of the present invention.

FIG. 4 is a block circuit diagram of a vacuum cleaner according to a fourth embodiment of the present invention.

FIG. 5 is a block circuit diagram of a conventional vacuum cleaner.

[Explanation of symbols]

 Reference Signs List 9 power detection means 10 electric blower 11 control means 12 microcomputer 13 non-volatile memory 15 notification means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takafumi Ishibashi 1006 Kazuma Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. Term (reference) 3B057 DA04 DA07

Claims (4)

[Claims] 1. An electric blower for sucking dust, an electric power detecting means for detecting electric power of the electric blower, a notifying means for notifying an amount of dust sucked into the dust collecting chamber, and a control for controlling the electric blower Means, a microcomputer for controlling electric power of the electric blower by comparing with a predetermined reference value, and a non-volatile memory which can be stored in advance, wherein the non-volatile memory compares the output of the electric power detecting means with a reference. An electric vacuum cleaner in which a value is stored in advance, and the content stored in the nonvolatile memory is read into a microcomputer at the time of use. 2. The electric vacuum cleaner according to claim 1, wherein information of a power value of the electric blower serving as a reference is stored in a nonvolatile memory in advance. 3. The vacuum cleaner according to claim 1, further comprising voltage detection means for detecting a power supply voltage, wherein reference voltage information is stored in a nonvolatile memory in advance. 4. The vacuum cleaner according to claim 1, further comprising temperature detecting means for detecting a temperature, wherein information on a reference temperature is stored in a nonvolatile memory in advance.