Electric dust collection device

Abstract

The utility model provides an electric dust collection device, which can reliably close a cover body for closing a dust collection chamber when the electric dust collector is separated from a station, can easily open a cover body for closing a dust collection part when the electric dust collector is connected with the station, and comprises the electric dust collector capable of being connected with the station. The electric dust collection device comprises a station and an electric dust collector which can be connected with and separated from the station. The electric dust collector comprises a first electric blower, a main body separation dust collection part, a cover body, a holding part and a dust collector main body of a suction pipe. The cover body includes a cover main body, a rotation fulcrum portion, and a receiving portion including a first magnetic body. The holding part is provided with a second magnetic body which can be attracted to the first magnetic body at a position opposite to the bearing part under the condition that the cover body is closed, and the holding part applies attraction force to the first magnetic body to maintain a closed state based on the closing action of the cover body under the state that the electric dust collector is separated from the station. When the electric dust collector is connected with the station, the adsorption force to the first magnetic body is reduced to allow the opening action of the cover body.

Description

Technical Field

[0001] The embodiment of the utility model relates to an electric dust suction device. Background Art

[0002] In the past, electric vacuum cleaners generally store the sucked dust in a dust collection bag installed inside the main body, and when a certain amount of dust is accumulated, the dust collection bag is connected and discarded together. In addition, the following electric vacuum cleaner device is proposed: each time the vacuum cleaner is connected (installed) to a dedicated station after vacuuming, the dust temporarily accumulated inside the electric vacuum cleaner is transferred by the transfer wind (airflow that generates a transfer force based on negative pressure) generated by the station side, and does not remain on the electric vacuum cleaner side.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2022-183897

[0004] However, in the case of an electric vacuum cleaner that can be connected to a station as described above, in order to automatically transfer the attracted dust to the station side, the cover of the dust collecting part that temporarily accumulates the dust sometimes needs to be a structure that can be opened and closed. The cover is sometimes maintained in a closed state by a force-applying member (for example, a spring). In such a case, when the electric vacuum cleaner is carried or when it is connected to the station, the cover is sometimes opened or a gap is generated between the cover and the dust collecting part due to vibration or the like. Therefore, there is an undesirable situation in which the dust that has been collected with great difficulty is spilled. In addition, a structure that mechanically fixes the cover is also considered, but sometimes the structure becomes complicated, or the cover cannot be opened smoothly when connected to the station, which sometimes makes it difficult to adopt. Utility Model Content

[0005] An example of the problem to be solved by the present invention is to provide an electric vacuum cleaner device including an electric vacuum cleaner that can be connected to a station, wherein when the electric vacuum cleaner is separated from the station, the cover body that seals the dust collecting chamber can be reliably closed, and when connected to the station, the cover body that seals the dust collecting chamber can be easily opened.

[0006] An electric dust collector of one embodiment of the present invention comprises a station and an electric vacuum cleaner that can be connected to and separated from the station. The electric vacuum cleaner comprises a vacuum cleaner body, which comprises: a first electric blower that generates a suction force to attract dust; a main body separation dust collection part; a cover body that opens and closes a waste port provided in the main body separation dust collection part; a holding part that can maintain the closing action of the cover body; and a suction pipe that has a suction port that sucks air through the suction force of the first electric blower. The main body separation dust collection part comprises: a separation part that separates dust from air containing the dust; and a dust collection chamber that accumulates dust separated by the separation part and has the waste port in a part that can discharge the accumulated dust. The cover body comprises: a cover body; a rotation fulcrum part that is provided at one end side of the cover body; and a receiving part that includes a first magnetic body that is provided in the cover body at a position closer to the other end side than the rotation fulcrum part. The holding part has a second magnetic body that can be adsorbed to the first magnetic body at a position opposite to the receiving part when the cover body is closed. When the electric vacuum cleaner is separated from the station, the second magnetic body is adsorbed to maintain the closed state formed by the closing action of the cover body. When the electric vacuum cleaner is connected to the station, the second magnetic body is adsorbed to allow the cover body to be opened. The station has a dust inlet connected to the waste port when the electric vacuum cleaner is connected; a recycling dust collection part connected to the dust inlet and capable of receiving the dust collected in the main body separation dust collection part; and a second electric blower that applies negative pressure to the main body separation dust collection part via the recycling dust collection part to generate a transfer force that moves the dust collected in the main body separation dust collection part to the recycling dust collection part.

[0007] Furthermore, the holding portion may be moved to a retreat position separated from a position facing the receiving portion, for example, in conjunction with a connecting operation of connecting the electric vacuum cleaner to the station.

[0008] Furthermore, the holding portion may have the second magnetic body built therein, for example, and may be moved to a retreat position separated from a position facing the receiving portion in conjunction with a connection operation of connecting the electric vacuum cleaner to the station.

[0009] Furthermore, the second magnetic body may be, for example, an electromagnet, and when the connection of the electric vacuum cleaner to the station is detected, the electromagnetic induction may be stopped.

[0010] In addition, the above-mentioned electric vacuum cleaner may be, for example, an electric vacuum cleaner having a gripping portion that can be grasped and can be connected to the above-mentioned station in an installation posture in which the above-mentioned vacuum cleaner body is erected. When the above-mentioned electric vacuum cleaner is in the above-mentioned installation posture with the above-mentioned suction port downward relative to the above-mentioned station, the above-mentioned rotation fulcrum portion is located at a position higher than the above-mentioned disposal port.

[0011] Furthermore, the receiving portion including the first magnetic body may be formed on the opposite side of the cover body with respect to the rotation fulcrum portion, for example, via a closing portion that closes the disposal port.

[0012] Utility Model Effect

[0013] According to the electric vacuum cleaner device constructed as above, for example, when the electric vacuum cleaner is separated from the station, the cover body is kept closed relative to the main body by utilizing the adsorption force between the receiving part and the holding part, thereby preventing dust from spilling out of the dust collecting chamber. In addition, when the electric vacuum cleaner is connected to the station, the adsorption force between the receiving part and the holding part is reduced to form a state in which the cover body is easy to open, thereby smoothly transferring the collected dust to the station. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an illustrative and schematic perspective view showing an electric vacuum cleaner device including an electric vacuum cleaner and a station according to an embodiment.

[0015] Figure 2 It means by Figure 1 An exemplary and schematic sectional view of a section through the upper region of the electric vacuum cleaner device consisting of an electric vacuum cleaner and a station is shown.

[0016] Figure 3 It means by Figure 1 An exemplary and schematic sectional view of a section through the lower region of the electric vacuum cleaner device consisting of an electric vacuum cleaner and a station is shown.

[0017] Figure 4 This is an illustrative and schematic perspective view showing a state in which the disposal openings (coarse dust disposal opening and fine dust disposal opening) of the electric vacuum cleaner according to the embodiment are closed by the cover body that has performed a closing operation.

[0018] Figure 5 This is an illustrative and schematic perspective view showing a state in which the disposal openings (coarse dust disposal opening and fine dust disposal opening) of the electric vacuum cleaner according to the embodiment are opened by the cover body that has performed an opening operation.

[0019] Figure 6 This is an illustrative and schematic partial cross-sectional view showing the positional relationship between the fine dust disposal port and the fine dust collecting portion of the electric vacuum cleaner according to the embodiment.

[0020] Figure 7 This is an illustrative and schematic perspective view showing a state in which the cover of the electric vacuum cleaner according to the embodiment is removed to expose disposal ports (a coarse dust disposal port and a fine dust disposal port).

[0021] Figure 8 This is an illustrative and schematic perspective view showing a state in which the disposal openings (coarse dust disposal opening and fine dust disposal opening) of the electric vacuum cleaner according to the embodiment are closed by a cover.

[0022] Fig. 9 This is an illustrative and schematic partial cross-sectional view showing another positional relationship between the coarse dust collecting portion (coarse dust disposal port) and the fine dust collecting portion (fine dust disposal port) of the electric vacuum cleaner according to the embodiment.

[0023] Explanation of symbols

[0024] 1: electric dust collecting device; 10: electric vacuum cleaner; 11: gripping part; 12: station; 14: vacuum cleaner body; 15: suction pipe; 16: suction port; 18: support part; 20: station body; 24: first electric blower; 28: main body separation dust collecting part; 30: first separation dust collecting part; 32: second separation dust collecting part; 34: coarse dust separation part; 34a: support body; 34b: first filter; 36: coarse dust collecting part; 3 7: coarse dust collecting chamber; 38: fine dust separation section; 40: fine dust collecting section; 41: fine dust collecting chamber; 42: connecting pipe section; 44: second electric blower; 45: dust inlet; 46: recycling dust collecting section; 48: waste port; 50: coarse dust waste port; 52: fine dust waste port; 54: cover body; 56: cover body; 58: rotating fulcrum section; 60: bearing section; 62: first magnetic body; 64: holding section; 66: second magnetic body. DETAILED DESCRIPTION

[0025] Hereinafter, the embodiments are described with reference to the accompanying drawings. In addition, in this specification, the constituent elements of the embodiments and the description of the elements are sometimes recorded in multiple expressions. The constituent elements and their descriptions are examples and are not limited to the expressions in this specification. The constituent elements may also be identified by names different from the names in this specification. In addition, the constituent elements may also be described by expressions different from the expressions in this specification.

[0026] <Structure of Electric Dust Cleaning Device 1>

[0027] Figure 1 1 is an illustrative and schematic perspective view showing an electric vacuum cleaner 1 including an electric vacuum cleaner 10 and a station 12 according to an embodiment. Figure 1As shown, the electric vacuum cleaner 1 includes an electric vacuum cleaner 10 and a station 12. In addition, arrows X1 and X2 are shown in each figure. In this embodiment, the arrows X1 and X2 are along the up-down direction. The arrow X1 is aligned with the upper direction, and the arrow X2 is aligned with the lower direction.

[0028] The electric vacuum cleaner 10 is a pole-type electric vacuum cleaner having a grip portion 11 that can be gripped by a user on the upper part of the vacuum cleaner body 14, an extension pipe 17 extending from the vacuum cleaner body 14 (removably connected), and a suction port body 16 that can be mounted on the front end (lower end) of the extension pipe 17. The suction port body 16 is connected to the vacuum cleaner body 14 via the extension pipe 17, and air is sucked in by the suction force of the first electric blower described later. The electric vacuum cleaner 10 drives the first electric blower described later by operating a switch of an operating portion 14a provided on a part of the vacuum cleaner body 14, thereby generating an airflow (air flow with suction force) flowing inside the vacuum cleaner body 14 and the extension pipe 17. As a result, the electric vacuum cleaner 10 sucks dust, such as dust present on the floor surface, as a vacuuming object from the suction port body 16. Then, the sucked dust is temporarily accumulated in a dust collecting portion provided inside the vacuum cleaner body 14. The suction port body 16 may also be provided with a brush that rotates by a motor or the like, so that dust existing in the grooves of the suction surface, for example, can be scraped out and effectively sucked. The electric vacuum cleaner 10 can be installed and separated relative to the station 12 in an installation posture in which the suction port body 16 is installed with the extension tube 17 standing upright at the bottom. That is, the electric vacuum cleaner 10 can be installed and separated relative to the station 12 in an installation posture in which the suction port body 16 is installed with the extension tube 17 standing upright at the bottom side relative to the cleaner body 14. The suction port body 16 is also called a suction port body.

[0029] The station 12 is composed of a cylindrical support portion 18 and a box-shaped station body portion 20. The station 12 is connected to a commercial power source, for example. The station 12 has a structure capable of connecting and detaching the electric vacuum cleaner 10. The station 12 can mechanically connect (support) the electric vacuum cleaner 10 via a hook or the like, and can be electrically connected via an electrical contact. When the electric vacuum cleaner 10 is connected to the station 12, the dust accumulated (collected) inside the vacuum cleaner body 14 can be recovered to the station body portion 20. The details of the action when the dust is transferred from the electric vacuum cleaner 10 to the station 12 will be described later. In addition, when the electric vacuum cleaner 10 is connected to the station 12, the battery mounted inside, for example, the gripping portion 11 of the electric vacuum cleaner 10 can be charged.

[0030] Figure 2 It means by Figure 1 The illustrated electric vacuum cleaner 10 and the station 12 constitute an exemplary and schematic cross-sectional view of the upper region of the electric vacuum cleaner device 1. In addition, Figure 3 It means by Figure 1An exemplary and schematic sectional view of a section through the lower region of the electric vacuum cleaner 1 consisting of an electric vacuum cleaner 10 and a station 12 is shown.

[0031] like Figure 2 As shown, a battery 22 for driving the electric vacuum cleaner 10 is built into the upper part of the vacuum cleaner body 14 of the electric vacuum cleaner 10. In addition, the vacuum cleaner body 14 includes a first electric blower 24, a main body separation dust collection unit 28, and a suction pipe 15. The suction pipe 15 includes a suction port 15a (see FIG. 1 ) connected to the extension pipe 17. Figure 7 , Figure 8 ). The suction pipe 15 is connected to the extension pipe 17. As described above, by operating the switch of the operating part 14a, etc., the vacuum cleaner main body 14 receives power supply from the battery 22 and drives the built-in first electric blower 24 to generate an air flow (suction wind) with suction force. The suction wind takes the suction port body 16 side as the upstream, flows in the direction of arrow X1 inside the extension pipe 17 and the suction pipe 15, and is exhausted to the outside of the electric vacuum cleaner 10 through the first electric blower 24. That is, the suction port 15a of the suction pipe 15 uses the suction force of the first electric blower 24 to suck in air. The main body separation dust collecting section 28 is arranged between the first electric blower 24 and the suction pipe 15 to collect dust sucked by the suction wind. In the above-mentioned installation posture, the suction port 15a of the suction pipe 15 is on the lower side relative to the main body separation dust collecting section 28.

[0032] The main body separation dust collecting part 28 is formed of a two-stage structure of a first separation dust collecting part 30 and a second separation dust collecting part 32, for example.

[0033] The first separation dust collecting section 30 has a coarse dust separation section 34, and a coarse dust collecting section 36 for accumulating (collecting) the coarse dust separated by the coarse dust separation section 34. The coarse dust separation section 34 is composed of, for example, a cylindrical support body 34a which is open at one end and has a bottom at the other end, and a first filter 34b which is, for example, a sheet-shaped support body supported on the periphery of the support body 34a. The coarse dust separation section 34 is arranged so that, in the installed posture, one end of the support body 34a becomes the lower end and the other end becomes the upper end. The first filter 34b is a filter which separates coarse dust of a first particle size (for example, a particle size of silk dust or above) or larger from air containing dust by filtering. Furthermore, on the open side ( Figure 2 A coarse dust collecting section 36 is formed on the arrow X2 direction side. In addition, the coarse dust is not limited to the above.

[0034] A coarse dust collecting chamber 37 (dust collecting space) is provided in the coarse dust collecting section 36. The coarse dust collecting chamber 37 is connected to the suction pipe 15 via the opening and closing valve 29f. The opening and closing valve 29f is, for example, a sheet-shaped flexible valve formed of a rubber material or the like, a part of which is fixed to the surrounding wall of the vacuum cleaner body 14. When the electric vacuum cleaner 10 is used, the first electric blower 24 uses the suction force of the suction wind generated by the first electric blower 24 to open the opening and closing valve 29f in the direction of the arrow X1 in the figure, and introduces the dust transferred together with the air (suction wind) flowing inside the suction pipe 15 into the first separation dust collecting section 30. Among the dust moved to the first separation dust collecting section 30 together with the air (suction wind), the coarse dust with a first particle size or above is captured by the first filter 34b. The captured coarse dust is accumulated (dust collected) in the coarse dust collecting chamber 37 of the coarse dust collecting section 36 due to its own weight when the suction wind stops. When the electric vacuum cleaner 10 (first electric blower 24 ) is stopped, the on-off valve 29 f is closed, and the coarse dust accumulated in the coarse dust collecting chamber 37 is prevented from flowing back toward the suction pipe 15 side.

[0035] Dust smaller than the first particle size (for example, dust such as powder having a particle size smaller than silk dust) that passes through the first separation dust collecting section 30 together with the suction wind moves to the second separation dust collecting section 32 disposed on the side closer to the first electric blower 24 than the first separation dust collecting section 30.

[0036] At least a part of the second separation dust collecting section 32 is located on the upper side relative to the first separation dust collecting section 30 in the installation posture. The second separation dust collecting section 32 is composed of the following parts: a fine dust separation section 38, which separates fine dust of a second particle size or larger contained in the suction wind (air) passing through the coarse dust separation section 34 (first filter 34b); and a fine dust collecting section 40, which accumulates the fine dust separated by the fine dust separation section 38. The second particle size is smaller than the first particle size. In addition, the fine dust is not limited to the above. The fine dust separation section 38, for example, includes a cylindrical second filter 38a (for example, a pleated filter). That is, the second filter 38a is a filter that separates fine dust of a second particle size or larger from air containing dust by filtering. The second filter 38a extends in the up-down direction in the installation posture. The cylindrical shape as the shape of the second filter 38a can be, for example, a corrugated shape of a concave and convex shape generated by repeated folding in the circumferential direction like a pleated filter, or a concave and convex shape can be formed. In addition, the cylindrical shape can also be a cylindrical shape, an elliptical cylindrical shape, a cylindrical shape such as a quadrilateral, a truncated cone shape, etc. The second filter 38a is an example of a filter.

[0037] A fine dust collecting chamber 41 (dust collecting space) is provided in the fine dust collecting section 40. At least a portion (a portion as an example) of the fine dust collecting chamber 41 is formed around the coarse dust separating section 34. In the case of the present embodiment, the fine dust collecting chamber 41 (dust collecting space) is formed to surround the coarse dust separating section 34. In the installed position, at least a portion of the fine dust collecting chamber 41 is located below the fine dust separating section 38. The fine dust separating section 38 is connected to the downstream side of the first separation dust collecting section 30 via the fine dust collecting chamber 41 in the suction wind (airflow) generated by the suction force of the first electric blower 24. When the electric vacuum cleaner 10 is used, the suction wind generated by the first electric blower 24 is used to capture fine dust of a second particle size or larger in the dust moving together with the suction wind passing through the first separation dust collecting section 30 by the second filter 38a. When the suction wind stops, a portion of the captured fine dust falls off from the second filter 38a due to its own weight and is accumulated in the fine dust collecting chamber 41 of the fine dust collecting section 40. In addition, the fine dust that has not fallen off from the second filter 38a is peeled off from the second filter 38a by the transfer wind (air flow caused by negative pressure) generated when the electric vacuum cleaner 10 is connected to the station 12 and the dust accumulated inside the vacuum cleaner body 14 is transferred to the station 12 side. Then, the peeled fine dust is transferred to the station body 20 via the fine dust collecting section 40. In addition, the shape of the second filter 38a is Figure 2 In addition to the truncated cone shape shown, a conical shape, a cylindrical shape, a prism shape, a pyramid shape, etc. can also be appropriately selected.

[0038] In the installation posture of the electric vacuum cleaner 10 constructed as above, the first separation dust collecting part 30 and the second separation dust collecting part 32 are located at the upper side relative to the suction pipe 15, the first electric blower 24 is located at the upper side relative to the first separation dust collecting part 30 and the second separation dust collecting part 32, and the fine dust separation part 38 is located at the upper side relative to the coarse dust separation part 34. In addition, in the installation posture of the electric vacuum cleaner 10, the suction pipe 15, the first separation dust collecting part 30 and the second separation dust collecting part 32, and the first electric blower 24 are arranged in the up-down direction, and the coarse dust separation part 34 and the fine dust separation part 38 are arranged in the up-down direction.

[0039] Next, the station 12 will be described. Figure 1 , Figure 3 As shown, the station 12 is composed of a support portion 18 having a communication pipe portion 42 extending in the arrow X1 - X2 direction formed therein, and a box-shaped station main body 20 formed below the support portion 18 (in the arrow X2 direction).

[0040] The station main body 20 is internally provided with a second electric blower 44 and a recycling dust collecting section 46. When the electric vacuum cleaner 10 is connected to the station 12, the second electric blower 44 is driven for a predetermined period to generate an air flow (transfer wind) accompanied by a transfer force generated by negative pressure in the connecting pipe section 42 via the recycling dust collecting section 46. The transfer wind flows from the connecting pipe section 42 toward the recycling dust collecting section 46. As a result, the dust accumulated in the electric vacuum cleaner 10 connected to the station 12 (support section 18) can be transferred to the recycling dust collecting section 46. In detail, the second electric blower 44 applies negative pressure to the first separation dust collecting section 30 and the second separation dust collecting section 32 via the recycling dust collecting section 46, so that the coarse dust collected in the first separation dust collecting section 30 and the fine dust collected in the second separation dust collecting section 32 are moved to the recycling dust collecting section 46.

[0041] The dust collection section 46 is provided with, for example, a paper bag, and can store dust transferred from the electric vacuum cleaner 10. That is, the dust collection section 46 can receive coarse dust collected in the first separation dust collection section 30 and fine dust collected in the second separation dust collection section 32. Then, when a predetermined amount of dust is stored in the paper bag, the paper bag can be taken out from the dust collection section 46 and discarded. In addition, the dust collection section 46 can also be configured to store dust directly without using a paper bag.

[0042] <Detailed Structure of Main Body Separation and Dust Collection Section 28>

[0043] Next, the structure of the main body separation dust collecting portion 28 in the electric vacuum cleaner 10 will be described in detail. Figure 4 This is an illustrative and schematic perspective view showing a state in which the disposal openings (coarse dust disposal opening and fine dust disposal opening) of the electric vacuum cleaner according to the embodiment are closed by the cover body that has performed a closing operation. Figure 5 This is an illustrative and schematic perspective view showing a state in which the disposal openings (coarse dust disposal opening and fine dust disposal opening) of the electric vacuum cleaner according to the embodiment are opened by the cover body that has performed an opening operation.

[0044] like Figure 4 as well as Figure 5 As shown, the main body separation dust collecting section 28 includes a shell 29 and a sealing member 31. The shell 29 accommodates a coarse dust separation section 34 and a fine dust separation section 38 inside. The shell 29 constitutes a coarse dust collecting section 36 and a fine dust collecting section 40. The sealing member 31 is accommodated inside the shell 29. The main body separation dust collecting section 28 constitutes a part of the vacuum cleaner body 14, and can be disassembled relative to other parts of the vacuum cleaner body 14. The other parts of the vacuum cleaner body 14 are the parts including the gripping part 11, the battery 22 and the first electric blower 24, which constitute the base part 14b.

[0045] The housing 29 includes a lower wall 29a, an upper wall 29b, a side wall 29c, and a partition wall 29d. The housing 29 is made of, for example, a synthetic resin material. The material of the housing 29 is not limited to the above.

[0046] The lower wall 29a extends in a direction intersecting the vertical direction. A vent hole 29e is provided in the lower wall 29a. In addition, an on-off valve 29f for opening and closing (opening / closing) the vent hole 29e is provided in the lower wall 29a. The vent hole 29e is connected to the suction pipe 15 and the coarse dust collecting chamber 37 when the on-off valve 29f is opened ( Figure 5 ) That is, the suction pipe 15 and the coarse dust collecting chamber 37 are communicated with each other through the vent hole 29e.

[0047] The upper wall 29b is located above the lower wall 29a at a distance and extends in a direction intersecting the up-down direction. The upper wall 29b is provided with a vent hole 29g. The vent hole 29g is connected to the space inside the second filter 38a of the fine dust separation unit 38 and the suction port of the first electric blower 24. That is, the space inside the second filter 38a of the fine dust separation unit 38 is connected to the suction port of the first electric blower 24 via the vent hole 29g.

[0048] The side wall 29c extends in the up-down direction, covering the outer peripheral edge of the lower wall 29a and the outer peripheral edge of the upper wall 29b. The side wall 29c is cylindrical, at least a portion of which extends in the up-down direction. The side wall 29c may be in a shape that extends in the up-down direction as a whole, or may be provided with a step portion, and the side wall 29c may be in a shape that only a portion of which extends in the up-down direction.

[0049] The partition wall 29d is connected to the side wall 29c in the tube of the side wall 29c, and divides the interior of the housing 29 into two upper and lower areas. Specifically, the partition wall 29d separates the coarse dust collecting chamber 37 from the fine dust collecting chamber 41. In other words, the partition wall 29d separates the coarse dust collecting chamber 37 from the fine dust collecting chamber 41. The coarse dust separation section 34 is arranged on the upper surface of the partition wall 29d. The vent hole 29h that opens the space inside the coarse dust separation section 34 downward is provided in the partition wall 29d. The partition wall 29d is also called a partition wall.

[0050] Moreover, the housing 29 includes a coarse dust housing portion 29i and a fine dust housing portion 29j. The coarse dust housing portion 29i is included in the coarse dust collecting portion 36. The fine dust housing portion 29j is included in the fine dust collecting portion 40.

[0051] The coarse dust housing portion 29i is composed of a lower wall 29a, a partition wall 29d, and a portion 29ca between the lower wall 29a and the partition wall 29d in the side wall 29c. A portion of a coarse dust collecting chamber 37 is provided inside the coarse dust housing portion 29i. The coarse dust collecting chamber 37 is a space that extends throughout the interior of the coarse dust housing portion 29i and the interior of the coarse dust separation portion 34. That is, the coarse dust collecting chamber 37 is surrounded by the inner surface of the coarse dust housing portion 29i and the inner surface of the coarse dust separation portion 34. In other words, the coarse dust collecting chamber 37 is formed by the coarse dust housing portion 29i and the coarse dust separation portion 34.

[0052] The fine dust housing portion 29j is composed of an upper wall 29b, a partition wall 29d, and a portion 29cb between the upper wall 29b and the partition wall 29d in the side wall 29c. A fine dust collecting chamber 41 is provided inside the fine dust housing portion 29j. The fine dust collecting chamber 41 is surrounded by the inner surface of the fine dust housing portion 29j, the outer surface of the fine dust separation portion 38, and the outer surface of the coarse dust separation portion 34. In other words, the fine dust housing portion 29j, the fine dust separation portion 38, and the coarse dust separation portion 34 together form a coarse dust collecting chamber 37.

[0053] The fine dust collecting chamber 41 has a first portion 41a and a second portion 41b. The first portion 41a is a portion between the inner surface of the fine dust housing portion 29j and the outer surface of the fine dust separation portion 38, and surrounds the outer peripheral portion 38b of the fine dust separation portion 38 (second filter 38a). The second portion 41b is a portion between the inner surface of the fine dust housing portion 29j and the outer surface of the coarse dust separation portion 34. That is, the second portion 41b surrounds the coarse dust separation portion 34. In the installed posture, the second portion 41b is located at the lower side relative to the first portion 41a and is connected to the first portion 41a. The second portion 41b is located at a position lower than the fine dust separation portion 38. That is, at least a portion (a portion as an example) of the fine dust collecting chamber 41 is located at a position lower than the fine dust separation portion 38.

[0054] Figure 6 This is an illustrative and schematic partial cross-sectional view showing the positional relationship between the fine dust disposal port and the fine dust collecting portion of the electric vacuum cleaner according to the embodiment.

[0055] like Figures 4 to 6 As shown, the sealing member 31 is sandwiched between the upper surface 29da of the partition wall 29d and the lower end of the coarse dust separation unit 34. The sealing member 31 is formed in an annular shape and is installed on the outer periphery of the lower end of the coarse dust separation unit 34. The sealing member 31 is composed of an elastic member such as rubber and has elasticity. The sealing member 31 seals between the partition wall 29d and the coarse dust separation unit 34.

[0056] like Figure 6As shown, the sealing member 31 has a joint portion 31a and a leg portion 31b. The joint portion 31a is engaged with the lower end portion of the coarse dust separation portion 34. The leg portion 31b extends obliquely downward from the joint portion 31a toward the inner surface of the side wall 29c and contacts the upper surface 29da of the partition wall 29d. The leg portion 31b is elastically deformed by being pressed against the upper surface 29da of the partition wall 29d, for example. The upper surface 31c of the sealing member 31 carries the fine dust in the fine dust collecting chamber 41. The upper surface 31c is an example of a surface.

[0057] Figure 7 This is an illustrative and schematic perspective view showing a state in which the cover of the electric vacuum cleaner according to the embodiment is removed to expose disposal ports (a coarse dust disposal port and a fine dust disposal port).

[0058] like Figure 4 , Figure 5 as well as Figure 7 As shown, a waste port 48 is provided in the main separation dust collecting section 28. The waste port 48 is provided on the side wall 29c of the shell 29. As an example, the waste port 48 is provided in a portion of the side wall 29c extending in the up-down direction. The coarse dust collected in the first separation dust collecting section 30 and the fine dust collected in the second separation dust collecting section 32 can pass through the waste port 48. In detail, the waste port 48 includes a coarse dust waste port 50 and a fine dust waste port 52. The coarse dust waste port 50 and the fine dust waste port 52 are provided independently of each other. The coarse dust waste port 50 and the fine dust waste port 52 are provided at intervals in the up-down direction (arrow X1-X2 direction). The coarse dust waste port 50 is located on the lower side (arrow X2 side) relative to the fine dust waste port 52. In other words, the fine dust waste port 52 is located on the upper side (arrow X1 side) relative to the coarse dust waste port 50.

[0059] The coarse dust disposal port 50 is provided on the side wall 29c of the coarse dust housing portion 29i and communicates with the coarse dust collecting chamber 37 of the first dust separation collecting portion 30. The coarse dust collected in the first dust separation collecting portion 30 can pass through the coarse dust disposal port 50. The fine dust disposal port 52 is located below the fine dust separation portion 38.

[0060] The fine dust disposal port 52 is provided on the side wall 29c of the fine dust housing portion 29j and is connected to the second portion 41b of the fine dust collecting chamber 41 of the fine dust collecting portion 40. The fine dust collected in the second separation dust collecting portion 32 can pass through the fine dust disposal port 52. The opening area of ​​the fine dust disposal port 52 is smaller than the opening area of ​​the coarse dust disposal port 50. In other words, the opening area of ​​the coarse dust disposal port 50 is larger than the opening area of ​​the fine dust disposal port 52. Figure 4 as well as Figure 5 As shown, the fine dust disposal port 52 is connected to the suction pipe 15 via the fine dust collection chamber 41 of the second separation dust collection unit 32 and the first separation dust collection unit 30. Figure 6As shown, the lower end 52a (lower side) of the fine dust disposal port 52 is located below (in the direction of arrow X2) the upper surface 31c of the sealing component 31 in the installed posture. In other words, the upper surface 31c of the sealing component 31 is located above (in the direction of arrow X1) the lower end 52a of the fine dust disposal port 52 in the installed posture. As an example, the upper surface 31c of the sealing component 31 is located above the lower end 52a of the fine dust disposal port 52 and below the upper end 52b (upper side) of the fine dust disposal port 52. Through the above-mentioned structure, the transfer air can be effectively blown to the fine dust on the upper surface 31c of the sealing component 31, and the fine dust can be easily moved to the fine dust disposal port 52.

[0061] Figure 8 This is an illustrative and schematic perspective view showing a state in which the disposal openings (coarse dust disposal opening and fine dust disposal opening) of the electric vacuum cleaner according to the embodiment are closed by a cover.

[0062] like Figure 4 , Figure 5 as well as Figure 8 As shown, the disposal port 48 (coarse dust disposal port 50, fine dust disposal port 52) ​​is opened and closed (opened / closed) by a cover 54. The disposal port 48 (coarse dust disposal port 50, fine dust disposal port 52) ​​communicates with the dust introduction port 45 of the station 12 when the cover 54 is open.

[0063] The air flow in the case where the on-off valve 29f is opened by the suction force of the first electric blower 24 in the main body separation dust collecting section 28 constructed as above is described in detail. The air flows from the suction pipe 15 into the coarse dust collecting chamber 37 via the vent 29e of the lower wall 29a, and enters the inner side of the coarse dust separation section 34 through the vent 29h of the partition wall 29d. Then, the air passes through the coarse dust separation section 34 from the inside to the outside and enters the second part 41b of the fine dust collecting chamber 41. At this time, the coarse dust in the air is separated by the coarse dust separation section 34. After that, the air flows from the second part 41b of the fine dust collecting chamber 41 to the first part 41a, and flows from the outside to the inside through the fine dust separation section 38 to the second part 41b of the fine dust collecting chamber 41. Then, the air passes through the fine dust separation section 38 from the outside to the inside, and the fine dust in the air is separated by the fine dust separation section 38. After that, the air enters the suction port of the first electric blower 24 from the vent hole 29g of the upper wall 29b. As described above, the coarse dust separated by the coarse dust separation section 34 and the fine dust separated by the fine dust separation section 38 are accumulated (dust collected) in the coarse dust collecting chamber 37 and the fine dust collecting chamber 41 respectively due to their own weight when the suction wind stops, etc. At this time, sometimes the coarse dust captured by the coarse dust separation section 34 and the fine dust captured by the fine dust separation section 38 do not fall off from the coarse dust separation section 34 and the fine dust separation section 38 and maintain a captured state. That is, the coarse dust separation section 34 can separate and collect coarse dust, and the fine dust separation section 38 can separate and collect fine dust. Therefore, it can be defined that the coarse dust separation section 34 and the fine dust separation section 38 are respectively included in the coarse dust collecting section 36 and the fine dust collecting section 40.

[0064] Next, refer to Figure 7 , Figure 8 , the details of the structure for holding dust in the main body separation and collection unit 28 and for being able to discharge the accumulated dust will be described.

[0065] When the electric vacuum cleaner 10 is in use, that is, in a state separated from the station 12, it is necessary to prevent the dust (coarse dust and fine dust) accumulated (collected) in the main body separation dust collection section 28 from being spilled to the outside from the main body separation dust collection section 28. On the other hand, in a state where the electric vacuum cleaner 10 is connected to the station 12, in order to transfer the dust from the main body separation dust collection section 28 to the station 12 (recycling dust collection section 46), the main body separation dust collection section 28 needs to be opened relative to the connecting pipe section 42 side.

[0066] Therefore, a coarse dust disposal port 50 for discharging coarse dust is formed as a disposal port 48 for discharging dust in a portion of the side wall 29c of the coarse dust collecting portion 36 forming the main body separation dust collecting portion 28. Similarly, a fine dust disposal port 52 for discharging fine dust is formed as a disposal port 48 in a portion of the side wall 29c of the cleaner body 14 forming the fine dust collecting portion 40.

[0067] like Figure 7 As shown in FIG. 1 , the coarse dust disposal port 50 and the fine dust disposal port 52 of this embodiment are independently formed at adjacent positions. Figure 1 As shown, the positional relationship between the coarse dust disposal port 50 and the fine dust disposal port 52 is set so that when the vacuum cleaner body 14 (extension pipe 17) is connected to the station 12 in an installation posture (standing posture) with the suction port body 16 as the bottom, the fine dust disposal port 52 is located above the coarse dust disposal port 50. That is, for the coarse dust disposal port 50 and the fine dust disposal port 52, the coarse dust disposal port 50 is arranged on the side close to the suction port body 16 (arrow X2 side) along the axial direction of the vacuum cleaner body 14, and the fine dust disposal port 52 is arranged above it (arrow X1 side). In addition, as described above, in the present embodiment, the opening area of ​​the coarse dust disposal port 50 is set to be larger than the opening area of ​​the fine dust disposal port 52. As a result, when the coarse dust and fine dust accumulated in the coarse dust collecting section 36 and the fine dust collecting section 40 are discharged, the coarse dust having a shape larger than the fine dust can be discharged smoothly. Furthermore, by reducing the opening area of ​​the fine dust disposal port 52 to be smaller than the opening area of ​​the coarse dust disposal port 50, the wind speed of the air passing through the fine dust disposal port 52 can be increased, and fine dust (dust that is finer than coarse dust or light dust) can be effectively discharged from the fine dust disposal port 52 along with the high wind speed airflow. In addition, in the present embodiment, the opening shapes of the coarse dust disposal port 50 and the fine dust disposal port 52 are rectangular, but in addition to the rectangular shape, they can also be circular, elliptical, etc.

[0068] In addition, the electric vacuum cleaner 10 has an openable and closable cover 54, which closes the coarse dust disposal port 50 and the fine dust disposal port 52 so that when the electric vacuum cleaner 10 is removed from the station 12, the dust accumulated (collected) in the main body separation dust collecting section 28 (coarse dust collecting chamber 37 and fine dust collecting chamber 41) will not spill out to the outside of the electric vacuum cleaner 10.

[0069] Figure 8 The present invention is an illustrative and schematic three-dimensional view showing a state in which the waste port 48 (coarse dust waste port 50 and fine dust waste port 52) ​​of the electric vacuum cleaner 10 is closed by the cover body 54. In the present embodiment, the cover body 54 is composed of a plate-shaped cover body 56 and a rotation fulcrum portion 58 that serves as the rotation center of the cover body 56 when opening and closing. Figure 8 The single cover 54 (cover body 56) is shown as closing the coarse dust disposal port 50 and the fine dust disposal port 52 by performing a closing operation with the pivot point 58 as the center. Figure 8In the case of, a rotation shaft is formed on the cover 54 side, and the rotation shaft is inserted into a support hole formed in a part of the side wall 29c of the shell 29 of the main body separation dust collection part 28, forming a rotation fulcrum part 58. In other embodiments, a support hole may be formed on the cover 54 side, and a rotation shaft formed in a part of the side wall 29c of the shell 29 of the main body separation dust collection part 28 is inserted into the support hole to form a rotation fulcrum part 58.

[0070] Use the above Figure 4 , Figure 5 The detailed structure and opening and closing operation of the cover body 54 will be described.

[0071] As described above, the cover body 54 is composed of a plate-shaped cover body 56 and a rotation fulcrum portion 58 that serves as the rotation center when the cover body 56 is opened and closed. In the cover body 56, sealing components such as resin fillers may be respectively arranged around the surfaces that abut against the coarse dust disposal port 50 and the fine dust disposal port 52, that is, around the closed portion 54a that closes the disposal port 48 (the coarse dust disposal port 50 and the fine dust disposal port 52), and the close contact of the cover body 54 during the closing operation may be improved to prevent dust from being spilled to the outside.

[0072] like Figure 4 , Figure 5 As shown, the pivot point 58 is arranged at a side away from the coarse dust disposal port 50 and a position adjacent to the fine dust disposal port 52 relative to the coarse dust disposal port 50 and the fine dust disposal port 52 arranged adjacently, and supports the cover body 56 (cover body 54) so ​​that the coarse dust disposal port 50 and the fine dust disposal port 52 can be opened or closed at the same time by the cover body 56. A force-applying member 58a (for example, a torsion spring) for applying a force to make the cover body 56 perform a closing action (close the coarse dust disposal port 50 and the fine dust disposal port 52) ​​is arranged on the cover body 56, for example, near the pivot point 58. Therefore, when the electric vacuum cleaner 10 is not connected to the station 12, that is, when the electric vacuum cleaner 10 is in a usable state, the cover body 54 (cover body 56) can maintain the closed action state (the state of closing the coarse dust disposal port 50 and the fine dust disposal port 52) ​​by the force of the force-applying member 58a.

[0073] In addition, the cover body 54 is provided with a receiving portion 60 for improving the performance of maintaining the closed action posture of the cover body 54 at the edge portion of the cover body 54, which is closer to the other end side than the rotation fulcrum portion 58. In addition, a first magnetic body 62 such as iron or a permanent magnet is built into the inside of the receiving portion 60. In addition, the position of the receiving portion 60 provided at the edge portion of the other end side of the cover body 54 is not limited to the end of the cover body 54, as long as it is near the end (periphery). For example, the receiving portion 60 may also be formed on the opposite side of the cover body 54 relative to the rotation fulcrum portion 58 across the closed portion 54a that closes the waste port 48.

[0074] In addition, a holding portion 64 is formed in a portion of the vacuum cleaner body 14 at a position opposite to the receiving portion 60 across the partition wall 14c when the cover body 54 is closed. And the holding portion 64 has a built-in second magnetic body 66 that applies an adsorption force to the first magnetic body 62. The second magnetic body 66 is, for example, a permanent magnet. The holding portion 64 has a rod portion 64a that is roughly L-shaped and extends from one side of the built-in second magnetic body 66. A rotation fulcrum portion 64b is formed on a portion of the rod portion 64a, and the holding portion 64 can rotate around the rotation fulcrum portion 64b. The holding portion 64 is biased by a force-applying member 64c (for example, a torsion spring) to rotate to an angle with respect to the first magnetic body 62. Figure 4 The receiving portion 60 shown in the figure is in an opposing posture. That is, when the electric vacuum cleaner 10 is separated from the station 12, the holding portion 64 with the second magnetic body 66 built in attracts the receiving portion 60 with the first magnetic body 62 built in through the partition wall 14c, and maintains the closed state formed by the closing action of the cover body 54. As a result, when the cover body 54 is closed, the cover body 54 is pressed against the coarse dust disposal port 50 and the fine dust disposal port 52 by the force generated by the force applying member 58a provided on the side of the rotating fulcrum portion 58 and the adsorption force of the receiving portion 60 (first magnetic body 62) and the holding portion 64 (second magnetic body 66), and the cover body 54 firmly closes the coarse dust disposal port 50 and the fine dust disposal port 52 at the same time. Therefore, when the vacuum cleaner 10 is separated from the station 12 , dust accumulated (collected) in the main body separation dust collecting section 28 (the coarse dust collecting chamber 37 and the fine dust collecting chamber 41 ) can be stably prevented from being scattered outside the vacuum cleaner 10 .

[0075] Furthermore, in the case of this embodiment, the fine dust disposal port 52 is located above the coarse dust disposal port 50, and the pivot point 58 is located above the fine dust disposal port 52. As a result, even if it is assumed to exist on the outer periphery of the cover body 54, it is easy to prevent dust from being caught between the pivot point 58, the cover body 54 and the cleaner body 14, which may cause poor rotation or incomplete closure. For example, even if fine dust is spilled during the transfer of dust, it is difficult for it to adhere to the pivot point 8 of the cover body 54, and it is difficult to cause poor rotation. In addition, if Figure 5 As shown, since the heavy object such as the first magnetic body 62 is separated from the rotation fulcrum portion 58, it is easy to rotate the cover body 54 during the closing operation. Furthermore, when the supply of the transfer air is stopped, the cover body 54 can be easily closed by its own weight, and the first magnetic body 62 and the second magnetic body 66 can be smoothly adsorbed.

[0076] In addition, Figure 4 , Figure 5In the case of, a rotation shaft is formed on the side of the holding portion 64, and the rotation shaft is inserted into a support hole formed in a part of the side wall 29c of the shell 29 of the main body separation dust collection portion 28, forming a rotation fulcrum portion 64b. In other embodiments, a support hole may be formed on the side of the holding portion 64, and a rotation shaft formed in a part of the side wall 29c of the shell 29 of the main body separation dust collection portion 28 is inserted into the support hole to form a rotation fulcrum portion 64b.

[0077] In addition, the second magnetic body 66 is built in the holding portion 64 across the partition wall 14c, so that even if metal dust or the like is adsorbed on the partition wall 14c or the holding portion 64, it can be easily removed (cleaned). As a result, the holding portion 64 can stably adsorb the cover 54 (receiving portion 60), and it is easy to suppress the closing action (sealing failure) of the cover 54.

[0078] In addition, Figure 4 In the case of , the receiving portion 60 is formed at an edge portion of the other end side farthest from the side where the rotation fulcrum portion 58 is formed, for example, and the retaining portion 64 is formed at a position corresponding to the receiving portion 60. As a result, it is possible to apply force to the cover body 56 at both end positions, effectively apply force to the cover body 56, and maintain a stable closing action posture. In other embodiments, the receiving portion 60 only needs to be located at a position closer to the other end side than the side where the rotation fulcrum portion 58 is formed, and the retaining portion 64 only needs to be formed at a position corresponding to the receiving portion 60. In this case, it is also possible to apply force to the cover body 56 at two locations, which can help maintain the closed action posture of the cover body 54.

[0079] like Figure 4 As shown, when the electric vacuum cleaner 10 with the cover 54 closed is connected to the station 12, as shown in FIG. Figure 5 As shown, the dust inlet 45 opened at a part (e.g., the upper part) of the support portion 18 of the station 12 faces the cover 54. At this time, the first protrusion 68 formed at a part of the support portion 18 abuts against the rod portion 64a, so that the holding portion 64 is Figure 5 As a result, the holding portion 64 is linked to the connecting action of connecting the electric vacuum cleaner 10 and the station 12, and moves from the opposing position P (refer to Figure 4 ) left the retreat position Q (refer to Figure 5) moves (rotates). By moving (rotating) the holding portion 64 to the retreat position Q, the adsorption force on the first magnetic body 62 of the receiving portion 60 is reduced, and the cover body 54 can be easily opened. In other words, the opening action of the cover body 54 can be allowed. That is, in a state where the electric vacuum cleaner 10 is connected to the station 12, the adsorption force of the cover body 54 is reduced to form a state where the cover body 54 is easy to open, and the collected dust can be smoothly moved to the station 12. In addition, by forming a structure that allows the holding portion 64 to move to the retreat position Q, there is no need to adopt a structure such as a locking claw that mechanically locks the receiving portion 60. As a result, it is easy to suppress the poor opening and closing action of the cover body 54 caused by the entrapment of dust, etc. that may be generated when a structure such as a locking claw is adopted.

[0080] In addition, when the electric vacuum cleaner 10 is separated from the station 12, the engagement between the first protrusion 68 and the rod 64a is released, and the holding portion 64 is reset to the opposing position P by the force of the force member 64c. In addition, since the supply of the transfer air (negative pressure) from the station 12 side is stopped, the cover body 54 is closed by the force of the force member 58a. As a result, the cover body 54 is reset to the closed action posture (the closing posture of the cover body 56 for the coarse dust disposal port 50 and the fine dust disposal port 52) ​​by the adsorption of the first magnetic body 62 of the receiving portion 60 and the second magnetic body 66 of the holding portion 64.

[0081] As described above, when the electric vacuum cleaner 10 is connected to the station 12, the second electric blower 44 of the station 12 is driven for a predetermined period of time, and an air flow (transfer wind) accompanied by a transfer force generated by negative pressure is generated in the connecting pipe part 42 via the dust collection part 46. As described above, when connected, the cover 54 of the electric vacuum cleaner 10 is easy to open. As a result, the dust collection part 28 and the suction pipe 15 (see FIG. 1 ) are separated from the main body of the connected electric vacuum cleaner 10. Figure 2 ) etc. The air is introduced. The opening action of the cover 54 is promoted by the air flow, so that Figure 5 That is, the dust introduction port 45 is connected to the disposal port 48 (the coarse dust disposal port 50 and the fine dust disposal port 52) ​​opened by the lid body 54 that has performed the opening operation.

[0082] In addition, the connecting pipe part 42 having the dust introduction port 45 at the top has a substantially linear flow path, and is connected to the dust collection part 46 of the station main body 20 located below the connecting pipe part 42. Therefore, the dust (fine dust and coarse dust) discharged through the disposal port 48 (coarse dust disposal port 50 and fine dust disposal port 52) ​​and the dust introduction port 45 can be smoothly moved to the dust collection part 46 for collection.

[0083] When the transfer wind flows from the station 12 side, for example, the on-off valve 29f is opened by the air flow from the suction pipe 15 side, and the airflow W1 (transfer wind) is generated. As a result, the coarse dust accumulated in the coarse dust collecting section 36 (coarse dust collecting chamber 37) is discharged from the coarse dust disposal port 50 opened by the opening action of the cover body 54, and is transferred to the connecting pipe section 42. That is, the coarse dust can be moved to the recycling dust collecting section 46. At this time, an airflow W3 is also generated from the suction pipe 15 via the coarse dust collecting section 36 (coarse dust collecting chamber 37) and the coarse dust separation section 34 through the fine dust collecting section 40 (the second part 41b of the fine dust collecting chamber 41) toward the fine dust disposal port 52. Through this airflow W3, the fine dust in the fine dust collecting section 40 (fine dust collecting chamber 41) is transferred to the recycling dust collecting section 46.

[0084] Similarly, when the transfer wind flows from the station 12 side, the air flow from the main body separation dust collection part 28 side generates the air flow W2 (transfer wind). As a result, the fine dust accumulated in the fine dust collection part 40 (fine dust collection chamber 41) is discharged from the fine dust disposal port 52 opened by the opening action of the cover body 54, and is transferred to the connecting pipe part 42. That is, the fine dust can be moved to the recycling dust collection part 46. In addition, although described later, the air flow W2 includes the air flow through the inlet 74 of the vacuum cleaner body 14 and the air flow through the first electric blower 24. The inlet 74 introduces air between the second separation dust collection part 32 and the first electric blower 24.

[0085] However, coarse dust is easily affected by the transfer wind due to its larger shape (e.g., larger particle size), and can be easily transferred. On the other hand, fine dust is smaller in shape than coarse dust (e.g., smaller particle size), so it is less affected by the transfer wind (only passes around the fine dust), and sometimes the transfer efficiency is worse than that of coarse dust. Therefore, sometimes fine dust remains in the fine dust collecting chamber 41.

[0086] In the case of the cleaner body 14 of the present embodiment, as described above, the pivot point 58 of the cover body 54 is arranged at a side away from the coarse dust disposal port 50 and adjacent to the fine dust disposal port 52 relative to the coarse dust disposal port 50 and the fine dust disposal port 52 arranged adjacently. As a result, when the cover body 54 is opened, the open area (space) M formed by the fine dust disposal port 52 on the side close to the pivot point 58 and the cover body 54 is smaller (space is reduced) than the open area (space) N formed by the coarse dust disposal port 50 on the side away from the pivot point 58 and the cover body 54. As a result, the flow rate of the airflow W2 passing through the fine dust disposal port 52 in the open area M is faster than the flow rate of the airflow W1 passing through the coarse dust disposal port 50 in the open area N.

[0087] As described above, the fine dust collecting chamber 41 of the second separation dust collecting section 32 has an upper surface 31c on which fine dust is placed, and the upper surface 31c is located above the lower end of the fine dust disposal port 52 when the electric vacuum cleaner 10 is connected to the station 12 in an installed posture (standing posture). As a result, the fine dust placed (remaining) on ​​the upper surface 31c can be effectively transferred by using the airflow W2 whose flow rate is accelerated in the open area (space) M reduced by the cover body 54. That is, the transfer efficiency of fine dust can be improved, and fine dust can be effectively transferred in the same way as coarse dust.

[0088] In addition, when the electric vacuum cleaner 10 is connected to the station 12, the first electric blower 24 of the electric vacuum cleaner 10 is stopped. As a result, the wind path resistance becomes larger, and the amount of air flowing from the outside through the inside and around the first electric blower 24 is small. Figure 5 As shown, the vacuum cleaner body 14 includes an air intake valve portion 70 that opens when the electric vacuum cleaner 10 is connected to the station 12. The air intake valve portion 70 is a substantially L-shaped component and includes a rod portion 70a. A rotation fulcrum portion 70b is formed on a portion of the rod portion 70a, and the air intake valve portion 70 can rotate around the rotation fulcrum portion 70b. In addition, a force-applying component 70c (for example, a torsion spring) that generates a force that maintains a closed action state is installed on the air intake valve portion 70. When the electric vacuum cleaner 10 is connected to the station 12, the rod portion 70a of the air intake valve portion 70 engages with a second protrusion 72 formed on a portion of the support portion 18 of the station 12 (in Figure 5 In the case of, it is pushed up in the clockwise direction), overcoming the force of the force-applying member 70c, such as Figure 5 The opening action is performed as shown. As a result, the air intake valve portion 70 is formed in a part of the vacuum cleaner body 14, opening an inlet 74 for introducing air between the second separation dust collecting section 32 and the first electric blower 24. As a result, the inlet 74 is connected to the external air intake 18a formed in a part of the support portion 18, so that the external air (air) flows into the second separation dust collecting section 32 as the airflow W2 (transfer wind), which helps to transfer fine dust. That is, it is configured to increase the air volume by easily taking in external air, which helps to improve the transfer force of dust, especially fine dust, and can effectively transfer fine dust like coarse dust.

[0089] In addition, Figure 4 , Figure 5 In the case of, a rotation shaft is formed on the side of the air intake valve portion 70, and the rotation shaft is inserted into a support hole formed in a part of the side wall 29c of the shell 29 of the main body separation dust collection portion 28, forming a rotation fulcrum portion 70b. In other embodiments, a support hole may be formed on the side of the air intake valve portion 70, and a rotation shaft formed in a part of the side wall 29c of the shell 29 of the main body separation dust collection portion 28 is inserted into the support hole, forming a rotation fulcrum portion 70b.

[0090] When the electric vacuum cleaner 10 is separated from the station 12 and the engagement between the rod 70a and the second protrusion 72 is released, the air intake valve 70 is closed by the force of the force-applying member 70c. As a result, the inlet 74 is closed. Thus, it is possible to prevent the reduction of the suction force generated by the first electric blower 24 when the electric vacuum cleaner 10 is used.

[0091] Thus, according to the electric dust cleaner 1 of the present embodiment, when the electric vacuum cleaner 10 is connected to the station 12, the dust accumulated (collected) in the main body separation dust collection section 28 can be effectively transferred to the recycling dust collection section 46 of the station 12 by the airflows W1, W2, and W3 (transfer air) generated when the cover 54 is opened. In addition, when the electric vacuum cleaner 10 is separated from the station 12, the disposal port 48 (coarse dust disposal port 50 and fine dust disposal port 52) ​​can be reliably closed by the closing action of the cover 54 and the adsorption action of the receiving portion 60 and the holding portion 64. As a result, the dust accumulated (collected) by the electric vacuum cleaner 10 can be suppressed (prevented) from being scattered from the main body separation dust collection section 28.

[0092] In addition, Figure 4 , Figure 5 In the example described in, the case where the second magnetic body 66 included in the holding portion 64 is set as a permanent magnet is shown, but it is not limited to this. In other embodiments, the second magnetic body 66 can also be formed by an electromagnet 66E. In this case, when the electric vacuum cleaner 10 is separated from the station 12 (when the electric vacuum cleaner 10 can be used), the electromagnet 66E receives power from the battery 22 and generates magnetic force through electromagnetic induction. As a result, the holding portion 64 (electromagnet 66E) adsorbs the first magnetic body 62 of the receiving portion 60 of the cover body 54 through the partition 14c, and the cover body 54 reliably closes the disposal port 48 (coarse dust disposal port 50 and fine dust disposal port 52). In addition, when it is detected that the electric vacuum cleaner 10 is connected to the station 12, for example, when it is detected that the contact point that can charge the battery 22 is connected, the power supply to the electromagnet 66E is cut off and the electromagnetic induction is stopped. As a result, the adsorption of the first magnetic body 62 of the receiving part 60 of the cover body 54 by the holding part 64 (electromagnet 66E) is released. As a result, the force applied to the cover body 54 is only the force of the force applying member 58a, and the opening action of the cover body 54 is easy (the opening action of the cover body 54 is allowed). In addition, when the second magnetic body 66 is an electromagnet, by cutting off the power supply to the electromagnet 66E, even if metal dust or the like is adsorbed by the holding part 64, it can be easily removed (cleaned). As a result, the holding part 64 can stably adsorb the cover body 54 (receiving part 60), and it is easy to suppress the poor closing action (poor sealing) of the cover body 54.

[0093] In addition, when the second magnetic body 66 is formed by the electromagnet 66E, the holding portion 64 may be moved to the retreat position Q. However, by stopping the power supply to the electromagnet 66E, the attraction force on the first magnetic body 62 can be reduced or eliminated. Therefore, when the second magnetic body 66 is formed by the electromagnet 66E, the movable mechanism (moving mechanism to the retreat position Q) of the holding portion 64 may be omitted, and the holding portion 64 may be fixed to the retreat position Q. Figure 4 In this case, the first protrusion 68 on the support column 18 side can be omitted. As a result, the structure of the cleaner body 14 and the structure of the support column 18 can be simplified, which can contribute to the improvement of the appearance design and the simplification of the design.

[0094] <Summary>

[0095] Thus, according to the electric vacuum cleaner 1 of the present embodiment, when the electric vacuum cleaner 10 is separated from the station 12, the closed action posture of the cover 54 relative to the main body separation dust collecting section 28 (coarse dust collecting chamber 37 and fine dust collecting chamber 41) can be reliably maintained, and the dust accumulated (collected) in the main body separation dust collecting section 28 (coarse dust collecting chamber 37 and fine dust collecting chamber 41) can be stably prevented from being spilled to the outside of the electric vacuum cleaner 10. In addition, when the electric vacuum cleaner 10 is connected to the station 12, the cover 54 can be easily opened, and the dust accumulated (collected) in the main body separation dust collecting section 28 (coarse dust collecting chamber 37 and fine dust collecting chamber 41) can be smoothly transferred to the station 12 side.

[0096] The electric dust collector 1 of the embodiment described above includes a station 12 and an electric vacuum cleaner 10 that can be connected to and separated from the station 12. The electric vacuum cleaner 10 includes a vacuum cleaner body 14, which includes: a first electric blower 24 that generates a suction force to attract dust; a main body separation dust collection unit 28; a cover 54 that opens and closes a disposal port 48 provided in the main body separation dust collection unit 28; a holding unit 64 that can maintain the closed action of the cover 54; and a suction pipe 15 that has a suction port 15a that sucks air by the suction force of the first electric blower 24. The main body separation dust collection unit 28 includes: a separation unit that separates dust from air containing dust; and a dust collection chamber (a coarse dust collection chamber 37 and a fine dust collection chamber 41) that accumulates dust separated by the separation unit and has a disposal port 48 at a part thereof that can discharge the accumulated dust. The cover body 54 includes a cover body 56, a pivot point 58 provided at one end of the cover body 56, and a receiving portion 60 including a first magnetic body 62 provided at a position closer to the other end of the cover body 54 than the pivot point 58. The holding portion 64 includes a second magnetic body 66 that can be adsorbed to the first magnetic body 62 at a position opposite to the receiving portion 60 when the cover body 54 is closed. When the electric vacuum cleaner 10 is separated from the station 12, an adsorption force is applied to the first magnetic body 62 to maintain the closed state formed by the closing action of the cover body 54. When the electric vacuum cleaner 10 is connected to the station 12, the adsorption force on the first magnetic body 62 is reduced to allow the cover body 54 to be opened. The station 12 includes: a dust inlet 45, which is connected to the waste port 48 when the electric vacuum cleaner 10 is connected; a recycling dust collection part 46, which is connected to the dust inlet 45 and can receive dust collected in the main body separation dust collection part 28; and a second electric blower 44, which applies negative pressure to the main body separation dust collection part 28 via the recycling dust collection part 46, and generates a transfer force that moves the dust collected in the main body separation dust collection part 28 to the recycling dust collection part 46. According to this structure, when the electric vacuum cleaner 10 is separated from the station 12, the cover 54 can be maintained in a closed state relative to the main body separation dust collection part 28 by the adsorption force, so as to suppress dust from spilling out of the dust collection chamber. In addition, when the electric vacuum cleaner 10 is connected to the station 12, the adsorption force of the cover 54 can be reduced to form a state in which the cover 54 is easy to open, and the collected dust can be smoothly transferred to the station 12.

[0097] The holding portion 64 may be moved to the retreat position Q away from the facing position P facing the receiving portion 60 in conjunction with the connection operation of connecting the vacuum cleaner 10 to the station 12. With this configuration, for example, the closing and opening operations of the cover 54 can be switched easily and smoothly.

[0098] In addition, the holding portion 64 may also have a second magnetic body 66 built therein, and move to a retreat position Q separated from the opposing position P of the receiving portion 60 in conjunction with the connecting operation of connecting the electric vacuum cleaner 10 to the station 12. According to this configuration, for example, even if metal dust or the like is adsorbed on the holding portion 64, it can be easily removed (cleaned). As a result, the holding portion 64 can stably adsorb the cover 54 (receiving portion 60).

[0099] In addition, the second magnetic body 66 may be, for example, an electromagnet 66E, which stops electromagnetic induction when the connection of the electric vacuum cleaner 10 to the station 12 is detected. According to this structure, for example, even if metal dust or the like is adsorbed on the retaining portion 64, it can be easily removed (cleaned). As a result, the retaining portion 64 can stably adsorb the cover 54 (receiving portion 60). In addition, the structure of the vacuum cleaner body 14 and the structure of the support portion 18 can be simplified, which can contribute to the improvement of the appearance design and the simplification of the design.

[0100] In addition, the electric vacuum cleaner 10 may be, for example, an electric vacuum cleaner 10 that has a gripping portion 11 that can be gripped and can be connected to the station 12 in an installation posture in which the vacuum cleaner body 14 is erected. When the electric vacuum cleaner 10 is in an installation posture with the suction port 15a at the bottom relative to the station 12, the rotation fulcrum portion 58 is located at a position above the waste port. According to this structure, for example, when dust is transferred, even if fine dust is spilled, it is difficult to adhere to the rotation fulcrum portion 58 of the cover body 54, and it is difficult to cause poor rotation. In addition, since heavy objects such as the first magnetic body 62 are separated from the rotation fulcrum portion 58, it is easy to perform the rotation operation of the cover body 54 during the closing action. Furthermore, when the supply of the transfer air stops, the cover body 54 is easy to close due to its own weight, and the adsorption action of the first magnetic body 62 and the second magnetic body 66 can be smoothly performed.

[0101] In addition, the receiving portion 60 including the first magnetic body 62 may be formed on the opposite side of the cover body 54 relative to the rotation fulcrum portion 58, for example, across the closing portion 54a that closes the disposal port 48. According to this configuration, the cover body 56 can be adsorbed at a position away from the rotation fulcrum portion 58, and the closed operation posture of the cover body 56 can be stably maintained.

[0102] <Other embodiments>

[0103] Fig. 9 This is an illustrative and schematic partial cross-sectional view showing another positional relationship between the coarse dust collecting portion (coarse dust disposal port) and the fine dust collecting portion (fine dust disposal port) of the electric vacuum cleaner 10.

[0104] In the above embodiment, when the electric vacuum cleaner 10 is connected to the station 12 with the suction port 16 at the bottom and the suction pipe 15 standing upright, the fine dust disposal port 52 is located above the coarse dust disposal port 50 (in the direction of arrow X1) (see FIG. Figure 5 On the other hand, Fig. 9 In the case of the electric vacuum cleaner 10A, the suction pipe 15 is attached to the station 12 with the suction port 16 at the bottom, and the coarse dust disposal port 50A is arranged above the fine dust disposal port 52A. Fig. 9 In the case of , it is an electric vacuum cleaner 10A including a centrifugal separation type main body separation dust collecting unit 28A.

[0105] In this case, the fine dust disposal port 52A and the coarse dust disposal port 50A can be opened or closed by a single cover 54A. Figure 5 As described in the above, it is expected that the transfer wind (equivalent to Figure 5 The flow rate of the airflow W2, etc. in the cover 54A is controlled. Therefore, in this case, it is sufficient that the rotation fulcrum portion 58A, which is the center of rotation when the cover 54A is opened and closed, is arranged at a side away from the coarse dust disposal port 50A and adjacent to the fine dust disposal port 52A relative to the adjacent coarse dust disposal port 50A and the fine dust disposal port 52A. In the case of this structure, the cover 54A rotates in the direction of arrow R in the figure. In addition, the open area (space) formed by the fine dust disposal port 52A on the side close to the rotation fulcrum portion 58A and the cover 54A is made smaller than the open area (space) formed by the coarse dust disposal port 50A on the side away from the rotation fulcrum portion 58A and the cover 54A (the space is reduced). As a result, the flow rate of the airflow passing through the fine dust disposal port 52A is increased, and the fine dust is easily discharged (transferred) from the fine dust disposal port 52A.

[0106] In addition, Fig. 9 In the case of, a rotation shaft is formed on the cover 54A side, and the rotation shaft is inserted into a support hole formed in a part of the side wall 29Ac of the shell 29A of the main body separation dust collection part 28A, forming a rotation fulcrum part 58A. In other embodiments, a support hole may be formed on the cover 54A side, and a rotation shaft formed in a part of the side wall 29Ac of the shell 29A of the main body separation dust collection part 28A is inserted into the support hole, forming a rotation fulcrum part 58A.

[0107] In addition, if Fig. 9As shown, in order to arrange the coarse dust disposal port 50A at a position higher than the fine dust disposal port 52A, it is necessary to change the arrangement relationship between the coarse dust separation section 34A and the coarse dust collection section 36A and the fine dust separation section 38A and the fine dust collection section 40A. For example, in the case of using the electric vacuum cleaner 10A, when the dust is sucked from the suction pipe 15A side together with the suction flow by the drive of the first electric blower not shown, the suction flow and the dust move to the first separation dust collection section 30A composed of the coarse dust separation section 34A and the coarse dust collection section 36A. The suction flow and dust flowing into the first separation dust collection section 30A rotate along the outer peripheral side of the coarse dust separation section 34A, that is, the inner peripheral surface of the shell 29A constituting the coarse dust collection section 36A, and the coarse dust is separated from the suction flow (air) by centrifugal force. The separated coarse dust is accumulated (collected) in the coarse dust collection section 36A.

[0108] The fine dust that passes through the tubular part 34Aa (coarse dust collecting part 36A) together with the suction flow (air) moves to the second separation dust collecting part 32A composed of the fine dust separation part 38A and the fine dust collecting part 40A. The fine dust separation part 38A includes a centrifugal body group formed by a plurality of conical centrifugal bodies 38Aa, and air and dust flow into the interior of each centrifugal body 38Aa from the center of the centrifugal body group, and the fine dust is centrifugally separated on the inner wall of the centrifugal body 38Aa. The air from which the fine dust is separated is discharged from the upper part of the centrifugal body 38Aa to the outside of the vacuum cleaner body 14A via the first electric blower (not shown) omitted from the figure. The fine dust separated by each centrifugal body 38Aa is accumulated (collected) in the fine dust collecting part 40A.

[0109] The coarse dust accumulated in the coarse dust collecting section 36A is discharged from the coarse dust disposal port 50A when the cover 54A is opened. Similarly, the fine dust accumulated in the fine dust collecting section 40A is discharged from the fine dust disposal port 52A when the cover 54A is opened. At this time, as described above, the flow rate of the airflow passing through the fine dust disposal port 52A increases, so it is easy to discharge (transfer) the fine dust from the fine dust disposal port 52A.

[0110] In addition, you can also Fig. 9 The application is based on the construction of Figure 4 , Figure 5 The structures of the receiving portion 60 and the holding portion 64 described above enhance the ability to maintain the closed posture of the cover body 54A.

[0111] Several embodiments of the utility model have been described, but these embodiments are presented as examples and are not intended to limit the scope of the utility model. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the utility model. These embodiments and their variations are included in the scope and purpose of the utility model, and are included in the solutions recorded in the technical solution of the utility model and the scope equivalent thereto.

Claims

1. An electric dust collector, characterized in that: have: station; and An electric vacuum cleaner capable of being connected to and disconnected from the station, The electric vacuum cleaner comprises a vacuum cleaner body, which comprises: a first electric blower, which generates a suction force for sucking dust; a main body separation dust collection part; a cover body, which opens and closes a waste port provided in the main body separation dust collection part; a holding part, which can keep the cover body closed; and a suction pipe, which has a suction port for sucking air through the suction force of the first electric blower, The main body separation and dust collection unit comprises: a separation unit for separating dust from the air containing the dust; and The dust collecting chamber accumulates the dust separated by the separation part and has the waste port at a part thereof for discharging the accumulated dust. The cover body has: Cover body; A rotation fulcrum portion is provided at one end side of the cover body; and The receiving part includes a first magnetic body provided in the cover body at a position closer to the other end than the rotation fulcrum part. The holding portion includes a second magnetic body capable of being adsorbed to the first magnetic body at a position opposite to the receiving portion when the cover body is closed, and applies an adsorption force to the first magnetic body to maintain the closed state formed by the closing action of the cover body when the electric vacuum cleaner is separated from the station, and reduces the adsorption force on the first magnetic body to allow the cover body to be opened when the electric vacuum cleaner is connected to the station. The above stations have: A dust inlet port connected to the waste port when the electric vacuum cleaner is connected; A recycling dust collecting part connected to the dust inlet and capable of receiving the dust collected in the main body separation dust collecting part; and The second electric blower applies negative pressure to the main body separation dust collection part via the recovery dust collection part, thereby generating a transfer force for moving the dust collected in the main body separation dust collection part toward the recovery dust collection part.

2. The electric dust collector according to claim 1, characterized in that: The holding portion moves to a retreat position separated from a position facing the receiving portion in conjunction with a connecting operation of connecting the electric vacuum cleaner to the station.

3. The electric dust collector according to claim 1, characterized in that: The holding portion has the second magnetic body built therein, and moves to a retreat position separated from a position facing the receiving portion in conjunction with a connection operation of connecting the electric vacuum cleaner to the station.

4. The electric dust collector according to claim 1, characterized in that: The second magnetic body is an electromagnet, and stops electromagnetic induction when the connection of the electric vacuum cleaner to the station is detected.

5. The electric dust collector according to claim 1, characterized in that: The electric vacuum cleaner is an electric vacuum cleaner having a grip portion that can be gripped and can be connected to the station in an installation posture in which the vacuum cleaner body is erected. When the electric vacuum cleaner is in the mounting posture with respect to the station with the suction port facing downward, the pivot point is located above the disposal port.

6. The electric dust collector according to claim 1, characterized in that: The receiving portion including the first magnetic body is formed on the opposite side of the cover body with respect to the rotation fulcrum portion across a closing portion that closes the disposal port.

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