JP2007111086A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a conventional vacuum cleaner keeps a deodorizing filter in contact with exhausted air for a short time, has a low deodorizing efficiency, and cuts and odor down slightly. <P>SOLUTION: The vacuum cleaner has a dust collecting means 3 to collect dust sucked, a deodorant 45 to deodorize the dust, an injecting means (deodorizing electric motor) 68 to inject the deodorant 45 into the dust collecting means 3, a deodorization injection varying means 67 to control the presence and the injection quantity of the deodorant 45, a dust detecting means 62 made up of a light-emitting element and a light-receiving element which detect the passage of the dust in a dust route and a judgment means (judgment control means) 63 to control the deodorant input varying means 67 in accordance with the dust detecting means 62. The vacuum cleaner injects the deodorant 45 into the dust collecting means 3 when the detection amount of dust exceeds a preset detection amount. Thus the vacuum cleaner permits the improvement of the deodorization efficiency and the reduction of odor. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to control of charging of a deodorant for suppressing the smell of collected dust.

Conventionally, with regard to exhaust deodorization of a vacuum cleaner, a configuration in which a deodorization filter is mounted in an exhaust path has been proposed (see, for example, Patent Document 1).
Japanese Patent No. 3238055

  However, in the method of mounting the deodorizing filter in the exhaust path, the suction amount of the vacuum cleaner is large, so the contact time between the deodorizing filter and the exhaust air containing odor is shortened, the deodorizing efficiency is small, and the odor reduction is small. It had the problem that.

  The present invention solves the above-mentioned problem, and provides a vacuum cleaner that significantly reduces the odor of exhaust gas by directly introducing a deodorizer into the dust collecting part and removing the odor of dust. It is aimed.

  In order to solve the above-described conventional problems, an electric vacuum cleaner of the present invention includes an electric blower that generates a suction force, a dust collecting unit that collects sucked dust, and a deodorizer that deodorizes the smell of dust. , Input means for introducing the deodorant into the dust collection means, deodorization input variable means for controlling the input amount of the deodorant, dust detection means for detecting the amount of dust that has passed through the dust collection path, Control means for controlling the deodorizing input variable means in accordance with the dust detection means, and when the amount of dust detected by the dust detection means exceeds a preset value, the deodorizer is collected by the dust collection. It is intended to be put into the means.

  Thus, since the amount of deodorizing means to be input is determined by the amount of dust collected, an appropriate amount capable of obtaining a deodorizing effect according to the amount of dust collected can be input.

  In the vacuum cleaner of the present invention, since the amount of deodorizing means to be input is determined by the amount of dust collected, an appropriate amount can be input for each amount of dust collected to obtain a deodorizing effect. It is possible to provide a vacuum cleaner that can be covered and has improved usability.

  The first invention is an electric blower that generates a suction force, a dust collecting means for collecting the sucked dust, a deodorizing agent for deodorizing the smell of dust, and the deodorizing agent being put into the dust collecting means. A deodorizing and charging variable means for controlling the charging amount of the deodorizing agent, a dust detecting means for detecting the amount of dust that has passed through the dust collecting path, and a deodorizing and charging variable means according to the dust detecting means. Control means for controlling, and when the amount of dust detected by the dust detection means exceeds a preset value, the deodorant is introduced into the dust collection means, and the amount of dust collected The amount of deodorizing means to be input is determined by the above, so that an appropriate amount capable of obtaining a deodorizing effect according to the amount of dust collected can be input.

  In the second invention, in addition to the first invention, the dust detecting means includes a plurality of amplifying means capable of detecting the size of the dust, and the amount of dust set in advance when the deodorant is introduced into the dust collecting means. Can be varied according to the amount of dust of different sizes, and an appropriate amount that can obtain a deodorizing effect according to the amount of dust collected can be introduced with higher accuracy.

  According to a third aspect of the present invention, there is provided an electric blower that generates a suction force, a dust collecting unit that collects the sucked dust, a deodorant that deodorizes the odor of the dust, and the deodorant that is introduced into the dust collecting unit. Charging means, deodorizing charging variable means for controlling the charging amount of the deodorizing agent, air volume detecting means for detecting the air volume based on the air volume or pressure or the rotational speed and current value of the electric blower, and deodorizing according to the air volume detecting means Control means for controlling the input variable means, and when the air volume detected by the air volume detection means is less than or equal to a preset value, the deodorant is input to the dust collection means, and the amount of dust collected The amount of deodorizing means to be input is determined by the above, so that an appropriate amount capable of obtaining a deodorizing effect according to the amount of dust collected can be input.

  A fourth invention is an electric blower that generates a suction force, a dust collecting means for collecting the sucked dust, a deodorizing agent for deodorizing the smell of dust, and the deodorizing agent being put into the dust collecting means. Charging means, deodorizing charging variable means for controlling the charging amount of the deodorizing agent, operation timing means for timing the operation time of the electric blower, and control means for controlling the deodorizing charging variable means in accordance with the operation timing means And when the operation time counted by the operation timing means exceeds a preset value, the deodorant is introduced into the dust collection means, and the amount of dust collected to some extent depends on the cleaning time. Therefore, even if the amount of the deodorizing means is determined according to the cleaning time, an appropriate amount capable of obtaining a deodorizing effect corresponding to the amount of dust collected can be input.

  According to a fifth aspect of the present invention, there is provided an electric blower that generates a suction force, a dust collecting unit that collects the sucked dust, a deodorant that deodorizes the smell of the dust, and the deodorant that is input to the dust collecting unit. A charging means, an operating means for turning on and off the electric blower, and a control means for controlling the charging means according to the operating means, and when the electric blower is turned off, the deodorizer is removed from the dust. Since the deodorizing means is put into all the collected dust, the deodorizing effect can be obtained with a simple configuration.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
The vacuum cleaner in the 1st Embodiment of this invention is demonstrated using FIGS.

  FIG. 1 is an overall perspective view of the vacuum cleaner in the present embodiment, and FIG. 2 is a cross-sectional view of the vacuum cleaner. In FIG. 1, reference numeral 1 denotes a vacuum cleaner main body, an electric blower 2 is arranged at the rear, and a dust box storage portion 5 for storing a dust box unit 4 which is a dust collecting means 3 that is detachable and collects dust at the front. A pair of traveling wheels 6 are rotatably attached to both sides of the lower rear portion, and a traveling caster 7 is also attached to the bottom front portion. At the front part of the cleaner body 1, there is provided an air inlet 10 to which a connection pipe 9 provided at one end of the hose 8 is detachably connected.

The other end of the hose 8 is provided with a distal end pipe 12 having a hand operating portion 11 for operating a cleaning operation. Reference numeral 13 denotes an extendable or jointable extension pipe, the downstream end of which is detachably connected to the tip pipe 12, and the other end is a rotary brush 14 for dust lifting, and the rotary brush 14 is driven to rotate. It is detachably connected to a suction tool 16 having a built-in electric motor 15.
A deodorant storage unit 44 is provided above the air inlet 10, and behind the dust box storage unit 5 is rotated in conjunction with the operation of a deodorization motor 68 (not shown) to be described later. The power transmission means accommodating part 20 to 44 is provided.

  FIG. 3 is an exploded perspective view of the power transmission means storage unit 20, 33 is a gear box, a bearing 34 a provided at one end of the crank arm 34, a shaft 35 a provided outside the center of the crankshaft 35, The crankshaft bearing 36 is fixed to a shaft 36 a provided outside the shaft center so as to be rotatable, and is attached to the gear box 33 so as to be rotatable.

  Next, a sliding shaft 37 is fixed to a bearing 34 b provided at the other end of the crank arm 34, and the shaft rotational motion of the crankshaft 35 is converted into a reciprocating linear motion by the sliding shaft 37 via the crank arm 34. . Reference numeral 38 denotes a holding member for fixing the sliding shaft 37 and is fixed to the gear box 33.

  FIG. 4 is a cross-sectional view of the wire mechanism 39. The wire 40 having the stoppers 40a and 40b provided at both ends is covered with a clothing 41, and the sliding shaft 37 is fixed to the stopper 40a side, and the sliding shaft 41 is fixed to the stopper 40b side. . An air tight packing 42 and a sliding bearing 43 are provided outside the sliding shaft 41, and the sliding bearing 43 is attached so as to be rotatable in the sliding direction of the sliding shaft 41.

  4A shows a state in which the sliding shaft 37 and the sliding shaft 41 are pushed forward, and FIG. 4B shows a state in which the sliding shaft 37 and the sliding shaft 41 are pulled backward. Show.

  FIG. 5 shows the transmission structure of the rotational force from the operation of the deodorizing motor 68 to the deodorizing agent storage section 44. The gear A27 is fixed to the shaft of the deodorizing motor 68 supported by the main body. A gear B28 is provided coaxially with the crankshaft 35 so as to mesh with the gear A27.

  Therefore, according to the operation of the deodorizing electric motor 68, the rotational force is transmitted in the order of the gear A27 and the gear B28, the crankshaft 35 is rotated, and the sliding shaft 37 is reciprocated linearly via the crank arm 34. Through the wire 40 fixed to the sliding shaft 37 shown in FIG. 6, the sliding shaft 41 also has the same reciprocating linear motion.

  Next, the structure of the deodorant storage part 44 is demonstrated using FIG.

  45 is a substantially square deodorant, and the deodorizer 45 is obtained by solidifying a powdery zeolite with aluminum phosphate as a binder into a substantially square shape.

  The deodorizer 45 is stored in a storage box 46, and a valve 47 for pressing the deodorizer 45 is urged by a spring 48 above the storage box 46 and fixed to the lid 49 so as to be movable up and down. The lid 49 has knob buttons 50 and 51 on both sides, and the storage box 46 has claws 46a and 46b that engage with the knob buttons 50 and 51. When the knob buttons 50 and 51 are pressed, The engagement with 46a and 46b is released, and the lid 49 can be pulled upward. Further, when the lifted lid 49 is pressed and returned to the original position, the knob buttons 50 and 51 and the claws 46a and 46b are engaged again, and the lid 49 and the storage box 46 can be fixed.

  A mesh-shaped cutting blade 52 having an opening hole for granulating the deodorizer 45 and a blade receiving base 53, a blade holding frame 54, and the cutting blade 52 and the blade receiving base 53 are reciprocated below the storage box 46. A sliding shaft 41 is fixed together with an air tight packing 42 and a sliding bearing 43. Further, a packing 54 fixed to the lower body 1 a is provided below the blade pedestal 53. Opening holes 55 a and 55 b provided on both side surfaces of the packing 55 and a communication path provided in the blade pedestal 53. 53a and 53b are fixed so as to communicate with each other.

  Next, FIG. 8 is a circuit block diagram of the electric vacuum cleaner, and reference numeral 60 denotes a driving means composed of a bidirectional thyristor or the like for driving the electric blower 2. Reference numeral 61 denotes a judgment control means composed of a microcomputer or the like. The determination control means 61 receives the operation signal from the hand operation unit 11 and makes a determination, and sends a drive signal to the drive means 60. Reference numeral 62 denotes dust detection means that is housed in the dust detection unit and includes an infrared light emitting diode and a phototransistor. Reference numeral 64 is a conversion unit configured with an output signal of the dust detection means 10 by an operational amplifier, a comparator, etc., which has an amplification function and a filter function, and converts the analog signal detected by the dust detection means 62 into a pulse signal. This is transmitted to the judgment control means 61. Reference numeral 65 denotes dust counting means for receiving and counting the dust detection signal, and accumulates the number of dust pulses from the start to the end of cleaning. Reference numeral 66 denotes a storage means for storing the number of accumulated dust pulses, which stores the number of accumulated pulses at the time of completion, and accumulates the count number from the stored value at the next cleaning. Needless to say, this storage means 66 is used for accurately introducing the deodorizer 45 with respect to the amount of accumulated dust. Reference numeral 67 denotes a deodorizing input variable means constituted by a transistor or the like for driving the deodorizing electric motor 68 and operates according to a signal from the microcomputer 61. Reference numeral 69 denotes an input amount operation unit for changing the input amount of the deodorant, and the user can set the input amount in a plurality of stages.

  Hereinafter, the operation will be described.

  First, the main body 1 is connected to a commercial power source (not shown), and the user instructs operation by the hand operation unit 11. An operation signal is sent from the hand operating unit 11 to the determination control means 9, and the determination control means 61 sends a drive signal to the drive means 61 so that the operation is performed with the initial value (for example, 300 W) according to the operated content. send. The drive means 61 energizes the electric blower 2 according to the transmitted signal, and the electric blower 2 starts to rotate and a suction force is generated.

  Due to this suction force, the dust sucked from the suction tool 16 is collected in the dust box unit 4 in the main body 1 through the extension pipe 13 and the hose 8. During this time, the amount of received light changes as shown in FIG. 9 when the dust passes through the suction path of the dust collection detecting portion, that is, when the dust passes between the light emitting portion and the light receiving portion. Here, since the change in the amount of received light is as small as 4%, this analog signal is amplified, and if the result exceeds a predetermined threshold, it is output as a dust detection signal.

  Next, the dust counting means 65 counts the dust detection signal, and when the accumulated count number becomes equal to or larger than the preset count number, the judgment control means 61 outputs to the deodorizing input variable means 67. The deodorizing electric motor 68 rotates.

  Further, even when a stop operation is performed at the hand operating section 11, the judgment control means 61 outputs to the deodorizing input variable means 67 for a certain period of time, the deodorizing motor 68 rotates, and the electric motor is operated when a preset time elapses. The blower 2 is stopped.

  When the deodorizing motor 68 rotates, the rotational force is transmitted in the order of the gear A27 and the gear B28, the crankshaft 35 rotates axially, and the sliding shaft 37 becomes a reciprocating linear motion via the crank arm 34. Through the wire 40 fixed to the sliding shaft 37, the sliding shaft 41 also has the same reciprocating linear motion. The blade pressing frame 54 fixed to the sliding shaft 41 also has the same reciprocating linear motion. Therefore, the cutting blade 52 fixed to the blade pressing frame 54 repeats reciprocating motion. At the same time, the deodorizer 45 is ground and granulated and falls from the opening hole of the cutting blade, passes through the communication passages 53a and 53b of the blade receiving base 53, and falls from the opening holes 55a and 55b of the packing 55. When the vacuum cleaner main body 1 is operated, dust is sucked into the dust box unit 4 through the space portion 59 formed between the guide portion provided on the inner surface of the packing 55 and the outer surface of the connection pipe 9. After a certain period of time during which a predetermined deodorizing agent is collected in the dust box unit 4, the deodorizing motor 68 is stopped, the accumulated count number of the dust counting means 65 is reset, and count accumulation is started from the beginning. When cleaning is completed without the count value reaching the deodorizing electric motor 68, the accumulated value before the completion is stored, and the next cleaning starts accumulation from the stored count value. Operate. When the user operates the input amount operation unit 69 to deodorize highly odorous dust, the rotation time of the deodorizing motor 68 is lengthened, or the accumulated count number for rotating the deodorizing motor 68 is decreased. The judgment control means 61 can increase the amount of deodorant input.

  The effect of this invention is investigated using the vacuum cleaner of the above structure.

  The actual room was cleaned for 15 minutes using the above vacuum cleaner. As a control experiment, the actual room was cleaned for 15 minutes without a deodorant. This cleaning experiment was continued for 10 days while paying attention to the exhaust odor. As a result, the control experiment was concerned about the odor of the exhaust from about the fifth day, but the present embodiment was hardly concerned until the end of the tenth day.

  When the amount of dust sucked into the vacuum cleaner was compared, approximately 10 grams of both the present embodiment and the control experiment were sucked after 10 days of cleaning. Moreover, the deodorizing agent 45 installed in the cleaner of this Embodiment was reduced by 1.2 g. Therefore, an average of 3 g of dust per day is sucked and 0.12 g of deodorant is introduced.

  At this time, when the dust collected by suction was observed, it was confirmed that the deodorizing agent 45 clings to the dust as powder and is mixed with the dust. In this case, the deodorizing agent 45 is charged as powder, and is in contact with and mixed with the sucked dust.

Next, after standing for one day in this state where 30 g of dust was sucked in, the vacuum cleaner was set in a 1 m ³ sealed chamber and operated for 30 seconds. The odor exhausted into the chamber was actually smelled by 6 panelists and sensory evaluated. As a result, the average odor intensity of the present embodiment was 1.8, while the control experiment was 3.0, confirming a significant odor reduction effect.

  Taking into account that the odor intensity 2 is the threshold for odor recognition, the odor intensity 1.8 is a level at which no smell is detected even if it can be detected as an odor, and the odor can be reduced at a high level. Recognize.

  From the above, as in this embodiment, the deodorizer is directly applied to the sucked dust to powerfully remove the odor of the dust. Odor retention is reduced, and the exhaust odor can be reduced even at the initial stage of use of a cleaner having a high odor level. Moreover, by using the deodorizing agent for wear, it can be made compact with a simple configuration.

(Embodiment 2)
FIG. 10 is a circuit block diagram according to the second embodiment of the present invention. 70 comprises an output signal of the dust detection means 62 by an operational amplifier, a comparator, etc., and has an amplification function and a filter function. The first output is determined and output by a first amplification unit having a predetermined first amplification factor It is a classification signal output means for outputting a dust detection signal and a second dust detection signal determined and output by a second amplification unit having a larger second amplification factor. Reference numeral 71 denotes first dust counting means for receiving and counting the first dust detection signal, and reference numeral 72 denotes second dust counting means for receiving and counting the second dust detection signal. Since other configurations are the same as those of the first embodiment, description thereof is omitted.

  Hereinafter, the operation will be described.

  The sucked dust is collected by the suction force of the electric blower 2 to the dust box unit 4 in the main body 1 through the hose 8. During this time, the amount of received light changes as the dust passes through the suction path of the dust collection detecting section, that is, the dust passes between the light emitting section and the light receiving section. Send to means 70. The classification signal output means 70 first amplifies the received signal by the first amplifying unit, and if the result exceeds a predetermined threshold value, outputs it as a first dust detection signal. Furthermore, regardless of whether the output level is the first dust detection signal or not, if the amplification result in the second amplification unit exceeds a predetermined threshold value, the second dust detection signal is output. That is, as shown in FIG. 11, in the case of relatively large dust, since it can be determined that the first amplification factor has reacted, both the first dust detection signal and the second dust detection signal are output. In the case of small dust, the first amplification factor does not reach the determination level, and since it can be determined that the reaction has occurred only at the second amplification factor, only the second dust detection signal is detected. By classifying the judgment based on the difference in amplification factor, the passage speeds of the light emitting and receiving parts are equal, and the difference in pulse width cannot be obtained sufficiently (for example, dust having a diameter of 0.1 mm and dust having a diameter of 0.03 mm). Can be distinguished as signals.

  Since the size of the dust can be distinguished by the two amplification factors, when the count number of each dust is accumulated, the detection of the particle size of 0.03 mm is 11 counts, and the dust box unit is set to 1 count of the particle size of 0.1 mm. The amount of dust collected in 4 can be accurately known. Therefore, the amount of deodorant in the dust collection amount can be input with high accuracy.

(Embodiment 3)
FIG. 12 is a circuit block diagram according to the third embodiment of the present invention. Reference numeral 73 denotes current detection means for detecting the load current of the electric blower 2 and is input to the judgment control means 63.

  Hereinafter, the operation will be described.

The dust sucked by the suction of the electric blower 2 is collected in the dust box unit 4 in the main body 1 through the hose 8. Since the air volume decreases due to the dust collection, the load current of the electric blower 2 becomes small. The change of the load current is detected by the current detection means 73, and it is detected that the load current is set in advance, and the deodorizing motor 68 is operated. Cleaner if when the air volume in the state where the dust is not dust collecting dust at 2.3 m ³ / min is full the dust box unit 4 is assumed to be 1.1m ³ / min 0.2m ³ / min The deodorizer 45 is introduced every time the air flow is lowered. Further, when the user operates the deodorizing electric motor 68 in order to deodorize highly odorous dust, it can be dealt with by introducing the deodorizing agent 45 every 0.1 m ³ / min, for example.

  Further, the same effect can be obtained by providing the operation time measuring means 74 for measuring the time when the electric blower 2 is operated, and introducing the deodorant 45 at every time interval of the cleaning time. If the user operates the deodorizing electric motor 68 to deodorize strongly odorous dust, for example, if it is normally charged every 10 minutes, it can be handled by changing the charging interval every 5 minutes.

  In this embodiment, zeolite is used as a deodorant. However, in addition to zeolite, silica, alumina, activated carbon, and the like can reduce composite odor such as cleaning dust and have the same effect.

  Further, in the present embodiment, the description has been made mainly on the deodorizing agent that is mainly powdered by the cutting blade, but there is no problem even if it is made granular.

  As described above, the vacuum cleaner according to the present invention removes the odor of dust by a compact and simple means, and can greatly reduce the odor of exhaust.

Whole perspective view of the electric vacuum cleaner in Embodiment 1 of this invention Cross section of the vacuum cleaner Exploded perspective view of power transmission means of the same vacuum cleaner (A) Sectional drawing which shows wire mechanism part operation | movement of the vacuum cleaner (b) Other sectional drawing which shows wire mechanism part operation | movement of the vacuum cleaner The figure which shows the power transmission structure inside the vacuum cleaner Exploded perspective view of the deodorant storage unit Sectional view of the deodorant storage Circuit block diagram of the vacuum cleaner Operation explanatory diagram of dust detection means of the same vacuum cleaner The circuit block diagram of the vacuum cleaner in Embodiment 2 of this invention Operation explanatory diagram of gain correction of dust detection means of the same vacuum cleaner Circuit block diagram of the electric vacuum cleaner according to Embodiment 3 of the present invention

Explanation of symbols

2 Electric blower 3 Dust collection means 45 Deodorant 62 Dust detection means 63 Judgment means (judgment control means)
67 Deodorizing input variable means 68 Input means (deodorizing electric motor)
70 Classification signal output means 73 Current detection means 74 Operation timing means

Claims (5)

An electric blower for generating a suction force, a dust collecting means for collecting the sucked dust, a deodorizing agent for deodorizing the odor of dust, an input means for putting the deodorizing agent into the dust collecting means, Deodorizing input variable means for controlling the amount of deodorizing agent, dust detecting means for detecting the amount of dust passing through the dust collecting path, and control means for controlling the deodorizing input variable means in accordance with the dust detecting means. An electric vacuum cleaner comprising: when the amount of dust detected by the dust detection means becomes equal to or greater than a preset value, the deodorizer is introduced into the dust collection means. The dust detection means is provided with a plurality of amplification means that can detect the size of the dust, and the amount of dust set in advance when the deodorizing agent is put into the dust collection means can be varied depending on the amount of dust of different sizes. The electric vacuum cleaner according to claim 1, wherein the electric vacuum cleaner is possible. An electric blower for generating a suction force, a dust collecting means for collecting the sucked dust, a deodorizing agent for deodorizing the odor of dust, an input means for putting the deodorizing agent into the dust collecting means, Deodorizing input variable means for controlling the input amount of the deodorizing agent, air volume detecting means for detecting the air volume based on the air volume or pressure or the rotational speed and current value of the electric blower, and controlling the deodorizing input variable means in accordance with the air volume detecting means. A vacuum cleaner, wherein the deodorizer is introduced into the dust collecting means when the air volume detected by the air volume detecting means is not more than a preset value. An electric blower for generating a suction force, a dust collecting means for collecting the sucked dust, a deodorizing agent for deodorizing the odor of dust, an input means for putting the deodorizing agent into the dust collecting means, The deodorizing charging variable means for controlling the charging amount of the deodorizing agent, the operation timing means for timing the operation time of the electric blower, and the control means for controlling the deodorizing charging variable means according to the operation timing means, the operation An electric vacuum cleaner characterized in that the deodorizing agent is put into the dust collecting means when the operation time measured by the time measuring means becomes a preset value or more. An electric blower for generating a suction force, a dust collecting means for collecting the sucked dust, a deodorizing agent for deodorizing the odor of dust, an input means for putting the deodorizing agent into the dust collecting means, An operating means for turning on and off the electric blower and a control means for controlling the charging means according to the operating means are provided, and when the electric blower is turned off, the deodorant is thrown into the dust collecting means. A vacuum cleaner characterized by that.

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