JP4984852B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner having a function of compressing dust in a dust collecting container.

Conventionally, this type of vacuum cleaner has been proposed in which the intake passage is switched and the dust collected by the negative pressure of the electric blower is compressed to improve the amount of collected dust (for example, Patent Documents). 1).
JP 2003-339598 A

However, in the configuration of the conventional vacuum cleaner, since the dust passage is compressed with the negative pressure from the electric blower by switching the intake passage, when the compression is performed, the suction force of the electric blower is increased to reduce the negative pressure. If it is not increased, the compression effect is small, so that a large amount of power is required to perform compression. In addition, dust having a small change in air volume, such as cotton dust, has a problem that the compression effect is small because a large negative pressure is not applied.

  The present invention solves the above-described conventional problems, and suppresses the power consumption of the electric blower by directly pressing and compressing the dust accumulated in the dust container, and even dust having a small airflow change such as cotton dust. An object of the present invention is to provide a highly usable vacuum cleaner that can be more reliably compressed and that can be cleaned with sufficient space for dust to enter the dust collection container before cleaning. To do.

In order to solve the above-described conventional problems, an electric vacuum cleaner according to the present invention includes an electric blower that generates a suction force, a dust collecting container that collects dust, and the electric blower that is in communication with the dust collecting container. A dust collection container storage section that is freely mounted, a compression means for compressing the dust arranged and collected in the dust collection container, a compression drive means for driving the compression means, and an operation of the compression drive means A control means for controlling the operation, a driving operation section for setting an operation mode of the electric blower, and a compression operating means provided in the driving operation section for sending an operation signal to the control means. When the operation is performed, an operation signal is sent to the control means, and the control means operates the compression drive means, and the power consumption of the electric blower is suppressed by directly compressing the dust accumulated in the dust collecting container. Electric The life of the wind machine is extended. Also, dust with a small change in air volume such as cotton dust can be more reliably compressed.
Further, since the compression operation is performed only when the user operates the compression operation means, the number of compressions is reduced, the reliability of the compression mechanism is improved, and the cleaning time can be further shortened.

The electric vacuum cleaner of the present invention can directly compress dust accumulated in the dust container, thereby suppressing power consumption of the electric blower and more reliably compressing dust such as cotton dust that has a small change in air volume. Further , since the compression operation is performed only when the user operates the compression operation means, the number of compressions is reduced, the reliability of the compression mechanism is improved, and the cleaning time can be further shortened.

The first invention includes an electric blower that generates a suction force, a dust collection container that collects dust, a dust collection container storage unit that communicates with the electric blower and is detachably attached to the dust collection container, Compression means for compressing the dust disposed and collected in the dust collection container, compression drive means for driving the compression means, control means for controlling the operation of the compression drive means , and operation of the electric blower A driving operation unit that sets a mode; and a compression operation unit that is provided in the driving operation unit and sends an operation signal to the control unit. When the compression operation unit is manually operated, an operation signal is sent to the control unit. The control means operates the compression driving means. By directly compressing the dust accumulated in the dust collecting container, the power consumption of the electric blower is suppressed, and the life of the electric blower is extended. Also, dust with a small change in air volume such as cotton dust can be more reliably compressed. Further, since the compression operation is performed only when the user operates the compression operation means, the number of compressions is reduced, the reliability of the compression mechanism is improved, and the cleaning time can be further shortened.

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

(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 according to the present embodiment, and FIG. 2 is a side sectional view of the vacuum cleaner.

  1 and 2, the vacuum cleaner main body 1 is provided with an electric blower chamber 3 having a built-in electric blower 2 at the rear, and a dust collecting container for detachably storing a dust collecting container 4 for separating and collecting dust at the front. A container storage unit 5 is arranged. An air inlet 7 to which one end of the hose 6 is detachably connected is provided at the front of the cleaner body 1. The other end of the hose 6 is provided with a tip pipe 9 provided with a driving operation unit 8 for gripping during cleaning and operating the operation of the cleaner body 1. Reference numeral 10 denotes an extendable or jointable extension pipe, the downstream end of which is detachably connected to the tip pipe 9 and the other end is detachably connected to the floor suction tool 11. 70 is a power cord for supplying power to the cleaner body 1, and a power plug 71 is provided at the tip.

  The vacuum cleaner in the present embodiment includes a “strong” operation mode, a “weak” operation mode, and an “automatic” operation mode as operation modes of the electric blower 2. A switch (not shown) for turning off or selecting an operation mode and a “off” switch (not shown) serving as a stop operation means for stopping the operation of the electric blower 2 are arranged.

  A container handle 12 for carrying the dust collection container 4 is gripped when the dust collection container 4 is carried or removed from the dust collection container storage 5 of the cleaner body 1.

  Next, the configuration of the dust collecting container 4 will be described with reference to FIGS. FIG. 3 is a perspective view of a part of the dust collecting container of the vacuum cleaner, FIG. 4 is a sectional view of the dust collecting container, and FIG. 5 is a perspective view of the dust collecting container and the dust collecting container storage unit. FIG. 6 is a rear perspective view of the dust collecting container.

  3 to 6, the dust collection container 4 includes a dust collection container main body 15 and a filter unit 16 that is detachably attached to the rear opening of the dust collection container main body 15.

  When the dust container 4 is attached to the front part of the dust container body 15 in the dust container housing part 5 of the cleaner body 1, the dust container body 15 is hermetically pressed and communicated with the rear side of the air inlet 7 of the cleaner body 1. A suction port 17 is provided. The dust collecting container body 15 further includes a coarse dust chamber 18 that directly communicates with the suction port 17 and stores coarse dust, and a filter unit 16 that collects fine dust contained in the suction air that has passed through the coarse dust chamber 18. A fine dust chamber 19 for storing fine dust separated from the dust cover, a cover that covers the lower openings of the coarse dust chamber 18 and the fine dust chamber 19 and whose rear end is pivotally supported by the dust container main body 15. A body 20 is provided.

  The lid 20 is urged in the opening direction by a coil spring 21 and is normally held in a closed state with a buckle 22 provided on the dust collecting container main body 15. When the operation part 23 provided in the part is pushed, the buckle 22 is moved outward via the connecting rod C46 connected thereto, and the lid 20 is opened by the biasing force of the coil spring 21. Reference numeral 25 denotes a spring material for constantly urging the operation unit 23 upward.

  The entire inner peripheral wall (four side walls) of the dust chamber 18 excluding the portion communicating with the suction port 17 is formed by a primary filter A 28 having an inclined surface 27 that gradually widens toward the lower opening 26. In addition, a compression plate 30 having a primary filter B29 is disposed at the upper part of the coarse dust chamber 18 and is fixed to the lower end of a connecting rod A24 that can move up and down. The compression plate 30 serves as a compression means for pressing and compressing the dust collected in the coarse dust chamber 18.

One end of a substantially L-shaped slider 31 is fixed to the upper end of the connecting rod A24. A rack gear 31 a is formed on the side of the slider 31 in the vertical direction. Reference numeral 32 denotes a slider spring made of an elastic member that constantly biases the connecting rod A24 upward, that is, the compression plate 30 always upward. A drive shaft 33 is rotatably supported on the side of the dust collecting container 4. The drive shaft 33 has a gear B 35 at the rear end, and further has a gear D 37 for transmitting power to the rack gear 31 a via the gear group 39. I have.

  Reference numeral 47 denotes a drive shaft B that is rotatably supported on the side of the dust collecting container 4. The drive shaft B includes a gear F48 on the rear side and a gear C36 that meshes with a gear A34 described later.

  On the other hand, when the dust container 4 is attached to the dust container storage part 5, the gear B35 is engaged with the partition wall 40 that partitions the electric blower chamber 3 and the dust container storage part 5 in the vacuum cleaner body 1. A gear storage portion 41 that stores a gear E38 that is rotationally driven by the compression drive motor 56 is provided. Further, the partition wall 40 includes a gear G49 that meshes with the gear F48 and is rotationally driven by a dust removal drive motor 61.

  As shown in FIG. 6, the filter unit 16 is provided with a frame body 42, a pleat-folded secondary filter 43 provided on the frame body 42 with the pleats in the vertical direction, and slidable in the horizontal direction. A flip body 44 as dust removal means, a gear A34 rotatably provided on the side of the filter unit 16, and a connecting rod B45 for connecting the outer periphery of the gear A34 and a part of the flip body 44. Has been. Further, on the surface of the flip body 44 that faces the secondary filter 43, a protrusion (not shown) that abuts on each mountain fold portion of the pleated secondary filter 43 is provided.

  With the above configuration, when the gear A34 rotates, the flip body 44 connected via the connecting rod B45 reciprocates left and right, and the protrusions provided on the flip body 44 in the meantime are the mountain folds of the secondary filter 43. The fine dust adhering to the back surface of the secondary filter 43 (the surface on the coarse dust chamber 18 side) is screened out by vibrations and shocks generated at that time and collected in the fine dust chamber 19 and filtered by the secondary filter 43. Performance is coming back.

  Next, the control system of the vacuum cleaner in this Embodiment is demonstrated using FIG.

  In FIG. 7, 51 is an energization detection means for detecting whether the cleaner body 1 is connected to a commercial power source (not shown) and energized.

  Reference numeral 52 denotes a control means composed of a microcomputer or the like, which outputs a signal to the drive means 54 for driving the electric blower 2 based on the operation information input from the driving operation unit 8 by the user, as well as operation information and energization. Based on the detection information of the detection means 51, the control means outputs a signal to the compression drive means 55 that drives the compression plate 30.

  The compression drive means 55 is composed of an H-bitch and the like using a compression drive motor 56 that rotates the gear E38, and performs a normal rotation operation and a reverse rotation operation to realize the vertical movement of the compression plate 30. A DC power source 57 obtained by switching from a commercial power source is a power source for driving the compression drive motor 56.

  Reference numeral 53 denotes a load amount detecting means for detecting a load amount applied to the compression drive motor 56. In this embodiment, the load amount detection means 53 detects an increase or decrease in the current flowing through the compression drive motor 56 to detect the load amount applied to the compression drive motor 56. I am doing so.

  The user can perform operation operations such as “strong” operation, “weak” operation, “automatic” operation, “off”, and the like on the vacuum cleaner main body 1 by the operation operation unit 8.

The dust removal driving means 60 is constituted by a dust removal drive motor 61 that rotationally drives the gear G49, and drives the flip body 44 in response to a signal from the control means 52.

  Reference numeral 62 denotes dust collection container detection means configured by, for example, a micro switch for detecting that the dust collection container 4 main body is stored in the dust collection container storage unit 5.

  The operation and action of the vacuum cleaner in the present embodiment configured as described above are as follows.

  When the user starts using the vacuum cleaner, when the user inserts the power plug 70 of the vacuum cleaner body 1 into an outlet (not shown) provided on the wall of the room, the energization detection means 51 is energized in the vacuum cleaner body 1. Is detected, and a signal is sent to the control means 52. The control means 52 sends a signal to the compression drive means 55 so as to rotate in the forward direction, drives the compression drive motor 56 that drives the gear E38 to rotate, and sends a signal to the dust removal drive means 60 to drive the gear G49 in rotation. The dust removal drive motor 61 is driven.

  As the gear E38 rotates, the rotational power of the compression drive motor 56 is transmitted to the rack gear 31a via the gear D37 attached to the drive shaft 33, and the compression plate 30 descends to compress dust. When the compression plate 30 is lowered while compressing the dust accumulated in the coarse dust chamber 18, the load applied to the compression drive motor 56 gradually increases. When the flowing current gradually increases and the load amount detected by the load amount detection means 53 exceeds a predetermined load amount, the compression drive means 55 determines that the dust in the coarse dust chamber 18 is sufficiently compressed, and the compression drive motor The direction of rotation of 56 is reversed. When the compression plate 30 returns to the initial origin position, the compression drive motor 56 is restrained, so that the load current increases and the load amount detecting means 53 determines that the return to the origin is made, and the compression drive motor 56 is stopped. Let This series of operations is performed within a preset number of times.

  Simultaneously with the compression operation, the rotational power of the dust removal drive motor 61 is transmitted to the gear A34 via the gear C36 attached to the drive shaft B47, and the flip body 44 reciprocates left and right. The operation of flipping 43 folds to screen out fine dust adhering to the back surface of the secondary filter 43 is performed within a preset time.

  While the compression operation is being performed, when the user operates “automatic” of the driving operation unit 8 in order to perform the cleaning operation, the compression drive motor 56 is operated regardless of the state of the compression operation. It is operated in the rotational direction to return to the origin position, it is determined that the compression plate 30 has returned to the original origin position, the compression drive motor 56 is stopped, and the dust removal drive motor 61 is also stopped at the same timing, and then “automatic” The cleaning operation starts at the position.

  When the operation of the electric vacuum cleaner is started, the control unit 52 sends a signal to the driving unit 54 to operate the electric blower 2. The suction force by the electric blower 2 reaches the floor suction tool 11 through the secondary filter 43, the primary filter A 28 and the primary filter B 29, the coarse dust chamber 18, the hose 6, and the extension pipe 10. Then, the air containing the dust sucked from the floor suction tool 11 passes through the suction port 7 of the cleaner body 1 and enters the coarse dust chamber 18 straight from the suction port 17 of the dust collecting container body 15, and the primary filter A 28. Then, it hits the primary filter B29, where dust is collected and accumulated. Fine dust contained in the air that has passed through the primary filter A 28 and the primary filter B 29 is captured by the secondary filter 43.

When the cleaning operation is completed and the user performs a “stop” operation at the operation operation unit 8, first, the dust removal operation is performed for a predetermined time and the fine dust is screened out, and then the compression operation is performed. At this time, in order to shorten the time, it goes without saying that the compression operation may be performed simultaneously with the dust removal operation immediately after the stop operation, or the dust removal operation and the compression operation may be performed simultaneously after a predetermined time elapses from the stop operation. . During the dust compression, when the user operates “automatic” again, the cleaning operation is performed after returning to the origin position in the same manner as when the power is turned on, and during the compression, the user operates the operation unit 8 to “stop”. When is operated, the compression operation and the dust removal operation are stopped after returning to the origin.

  Next, disposal of dust that has been compressed and accumulated in the dust container 4 will be described.

  When removing the dust collection container 4 from the dust collection container storage part 5, it is only necessary to hold the container handle 12 and lift the dust collection container 4 upward. When the dust collecting container 4 is held on a trash box or the like and the container operation unit 23 is pushed, the connecting rod C46 is lowered, the buckle 22 is moved outward, and the lid 20 and the buckle 22 are moved. The locking is released, the lid 20 is opened by the biasing force of the coil spring 21, and the compressed dust and fine dust in the dust collecting container 4 fall into the trash box.

  As described above, according to the present embodiment, the dust accumulated in the dust collecting container 4 is directly removed by operating the compression driving means 55 at least once after the power is turned on until the operation of the electric blower 2. By pressing and compressing, dust having a small change in air volume such as cotton dust can be more reliably compressed. In addition, since the timing of compression is when the power is turned on, the dust collection container 4 can be cleaned with a space for dust before cleaning, eliminating the need to throw away the dust immediately after cleaning. improves.

  Further, by operating the compression driving means 55 after a lapse of a predetermined time after the stop operation, all the collected dust can be compressed and hardened to easily dispose of garbage.

  Further, since the flip body 44 for removing the dust from the secondary filter 43 is provided, the filtration performance of the secondary filter 43 can be restored as appropriate. After the cleaning operation is completed, the dust removal operation is first performed and then the compression is performed. If the operation is performed, the rising of fine dust can be suppressed and collected as dust.

  In addition, if the operation unit 8 is operated during the compression operation, the compression operation is initialized, and the cleaning operation can be performed immediately when cleaning is desired by returning to the origin and then moving to the next operation. When the user does not need the compression operation, the compression operation is not performed when the user does not need the compression operation. The reliability of the compression mechanism is reduced, and the cleaning time can be further shortened.

  In the above-described embodiment, when the user selects, for example, “automatic” in the operation unit 8 to perform cleaning during the compression operation, the compression plate 30 is removed regardless of the state of the compression operation. Although it was made to return to the first origin position, after performing the compression operation, the compression plate 30 is returned to the first origin position, the compression drive motor 56 is stopped, and the dust removal drive motor 61 is also stopped at the same timing. The cleaning operation may be started at the “automatic” position.

  Similarly, when the user operates “Automatic” again after the operation is stopped, the compression operation is completed and returned to the home position, and then the cleaning operation is performed and the dust operation is used. When the operator operates “stop”, the compression operation and the dust removal operation may be stopped after the compression operation is completed and returned to the origin.

  By doing as described above, after the compression operation is always completed, the operation proceeds to the next operation, the compression operation is surely performed, and the dust collection container 4 has a sufficient space for dust to be cleaned. Moreover, since the collected dust is hardened, it is possible to easily dispose of garbage.

It goes without saying that the same effect can be obtained even if the operation of the driving operation unit 8 during dust compression is invalidated and the operation is shifted to the operation after the compression operation is completed.

(Embodiment 2)
FIG. 8 is a block diagram showing the control content of the electric vacuum cleaner according to the second embodiment of the present invention. In addition, about the same part as the vacuum cleaner in the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the present embodiment, as shown in FIG. 8, the user can operate the compression drive means 55 to compress the dust in the dust collecting container 4 as necessary. A compression operation means 63 is provided for sending a signal to the control means 52 when operated.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  If the compression operation means 63 is operated when the user wants to secure a ventilation path or wants to dispose of garbage before cleaning, an operation signal is sent from the compression operation means 63 to the control means 52, and the control means 52 The operation signal is detected, and the compression driving means 55 is operated to perform the compression operation.

  As described above, according to the present embodiment, the compression driving means 55 operates when the compression operation means 63 is operated, so that the compression operation is performed only when the user wants to compress dust. Therefore, the number of compressions is reduced, the reliability of the compression mechanism is improved, and the cleaning time can be further shortened.

  As described above, the vacuum cleaner according to the present invention compresses accumulated dust, collects a large amount of dust in a dust collecting container, and reduces the number of times the dust is discarded. It is particularly useful for various vacuum cleaners for business use and business use.

Whole perspective view of the electric vacuum cleaner in Embodiment 1 of this invention Side sectional view of the vacuum cleaner Partially missing perspective view of dust collector of the vacuum cleaner Cross section of the dust container Perspective view of the dust collection container and the dust collection container storage Rear perspective view of the dust container Control system block diagram of the vacuum cleaner The block diagram which shows the control content of the vacuum cleaner in Embodiment 2 of this invention

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Electric blower 4 Dust collection container 5 Dust collection container storage part 15 Dust collection container main body 30 Compression plate (compression means)
44 Play body (dust removal means)
52 Control means 53 Load amount detection means 55 Compression drive means 56 Compression drive motor 61 Dust removal drive motor

Claims (1)

An electric blower that generates suction force, a dust collection container that collects dust, a dust collection container storage unit that is in communication with the electric blower and is detachably attached to the dust collection container, and the dust collection container A compression means for compressing the collected and collected dust, a compression drive means for driving the compression means, a control means for controlling the operation of the compression drive means , and an operation for setting an operation mode of the electric blower And a compression operation means that is provided in the driving operation section and sends an operation signal to the control means.When the compression operation means is manually operated, an operation signal is sent to the control means, and the control means A vacuum cleaner that operates the compression driving means .

Images