Dust suction device and vacuum cleaner system

Abstract

To provide a dust suction device which can be used without using a paper pack, and a vacuum cleaner system including the same.SOLUTION: The dust suction device 10 is for collecting dust collected in the dust collection container 252 of the vacuum cleaner 200, and includes the device body 20 having the electric blower 26 and the dust collection part 50 for collecting dust sucked out from the dust collection container 252, wherein the dust collection container 252 includes the lid body 254 capable of opening and closing the disposal port 262, and the dust sucked out from the dust collection container 252 is collected in the dust collection part 50 in a state where the dust collection container 252 with the lid body 254 opened and the dust collection part 50 communicate with each other. In the dust collection part 50, a dust collection box 52 having an inflow part 60 and an outflow part 64 is attachable / detachable to / from the device body 20. By the suction of the electric blower 26, air flows into the dust collection box 52 from the inflow portion 60, and the air in the dust collection box 52 flows out from the outflow portion 64.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a dust suction device and a vacuum cleaner system. [Background technology]

[0002] Conventionally, as disclosed in Patent Document 1 below, there has been provided a dust collection device that collects dust from an electric vacuum cleaner. In the prior art disclosed in Patent Document 1, the electric vacuum cleaner includes a main body having a first electric blower that generates suction force, and a first dust collection section that collects dust. The dust collection device disclosed in Patent Document 1 also includes a second dust collection section that communicates with the first dust collection section provided in the electric vacuum cleaner to collect dust collected from the electric vacuum cleaner. The dust collection device of Patent Document 1 has a so-called paper bag type second dust collection section in which dust can be collected inside a paper bag by attaching a paper bag. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-3875 Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the dust collection device of Patent Document 1 is configured as described above, there is room for improvement in that the user is forced to replace the paper pack, which is a consumable item.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a dust suction device that can be used without using a paper bag, and a vacuum cleaner system that includes the same. [Means for solving the problem]

[0006] The dust suction device of the present invention, which is provided to solve the above-mentioned problems, is for recovering dust collected in a dust collection container of an electric vacuum cleaner, and comprises an apparatus main body having an electric blower that generates suction force, and a dust collection unit that collects dust sucked out of the dust collection container by the electric blower into the dust collection box, the dust collection container has a lid body that can open and close a disposal opening on the bottom side, and when the dust collection container and the dust collection unit are in a state where the lid body is open and the dust collection container is in a state where they are connected, the suction force of the electric blower acts on the dust collection container, so that the dust sucked out of the dust collection container is collected in the dust collection unit, the dust collection unit has the dust collection box having an inlet portion and an outlet portion that is detachable from the apparatus main body, and the suction of the electric blower causes air to flow into the dust collection box from the inlet portion, and the air in the dust collection box flows out from the outlet portion.

[0007] The dust suction device of the present invention can collect dust sucked from the dust container of an electric vacuum cleaner by an electric blower in a dust box that forms the dust collection section. Furthermore, when the dust container with its lid open is in communication with the dust collection section, the dust suction device of the present invention can apply the suction force of the electric blower to the dust container, causing air to flow into the dust box through the inlet and air inside the dust box to flow out through the outlet. This allows the dust suction device of the present invention to collect dust sucked from the dust container in the dust collection section. Furthermore, the dust suction device of the present invention has a dust box that is detachable from the device body. Therefore, the dust suction device of the present invention can be used without using a paper bag. [Effects of the Invention]

[0008] According to the present invention, it is possible to realize a dust suction device that can be used without using a paper bag, and a vacuum cleaner system that includes the same. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a dust suction device and a vacuum cleaner system according to an embodiment of the present invention; [Figure 2]2 is a cross-sectional view of the dust suction device and the vacuum cleaner system shown in FIG. 1. [Figure 3] FIG. 3 is an enlarged view of part A in FIG. 2. [Figure 4] 2 is a perspective view showing a main part of a vacuum cleaner included in the vacuum cleaner system shown in FIG. 1. FIG. [Figure 5] 2 is a perspective view of a dust suction device included in the vacuum cleaner system shown in FIG. 1. FIG. [Figure 6] 6 is a perspective view showing the dust suction device of FIG. 5 with the dust collecting unit removed, as viewed from the rear side. [Figure 7] 3 is an enlarged cross-sectional view of the dust suction device and its vicinity in FIG. 2. [Figure 8] 2 is a rear view of the dust suction device shown in FIG. 1, showing a state in which a dust collecting unit and a rear panel of a first main body constituent unit are removed. FIG. [Figure 9] 2 is a rear view of the dust suction device shown in FIG. 1, showing a state in which a dust collecting unit and a rear panel of a second main body constituent unit are removed. FIG. [Figure 10] 2 is a cross-sectional view of the dust suction device shown in FIG. 1, taken along a plane substantially parallel to the rear surface. [Figure 11] 2 is a perspective view showing a support frame disposed inside the main body of the dust suction device shown in FIG. 1, a support portion attached to the support frame, an electric blower, and an exhaust flow path. [Figure 12] 12(a) is a rear view showing the support part, the electric blower, and the exhaust flow path shown in FIG. 11, and FIG. 12(b) is a BB cross-sectional view of FIG. [Figure 13] 2 is a perspective view showing a dust collecting unit included in the dust suction device shown in FIG. 1. FIG. [Figure 14] 14 is a cross-sectional view of the dust collecting section shown in FIG. 13, taken along a cross section passing through the inlet portion and generally parallel to the third side wall. FIG. [Figure 15](a) is an oblique view showing the state before connecting the connecting pipe to the receiving connection part, (b) is an oblique view showing an enlarged view of the vicinity of the engagement structure part shown in Figure 5 etc., and (c) is an oblique view showing the engagement part provided on the extension pipe to engage with the engagement structure part. [Figure 16] 1A is a perspective view showing a state in which the filter support member is connected to an electric blower, and FIG. 1B is a plan view showing a state in which the filter support member is viewed from the filter fitting portion side. [Figure 17] FIG. 10 is a rear view of the dust suction device according to the modified example, showing a state in which the dust collecting unit and the rear panel of the first main body constituent unit are removed. [Figure 18] FIG. 10 is a rear view of the dust suction device according to the modified example, showing a state in which the dust collecting unit and the rear panel of the first main body constituent unit are removed. DETAILED DESCRIPTION OF THE INVENTION

[0010] A dust suction device 10 according to one embodiment of the present invention, and a vacuum cleaner system S including the same, will be described in detail below with reference to the drawings. In the following description, before describing the configuration of the dust suction device 10 in detail, an overview will be given of the configuration of a vacuum cleaner 200 used together with the dust suction device 10 in the vacuum cleaner system S. In the following description, unless otherwise specified, positional relationships in the up-down direction, front-rear direction, left-right direction (width direction), etc. will be described based on the state in which the vacuum cleaner 200 is erected as shown in FIG.

[0011] <General configuration of the vacuum cleaner 200> 1 and 2, the electric vacuum cleaner 200 is a vacuum cleaner that is in a stick state when a vacuum cleaner main body 210, an extension tube 280, and a suction tool 290 are connected. The electric vacuum cleaner 200 can be, for example, a rechargeable type, or a type that obtains power from an external power source via a power cord. As shown in FIGS. 1 and 2, in addition to the above-mentioned vacuum cleaner main body 210, extension tube 280, and suction tool 290, the electric vacuum cleaner 200 also includes a handle unit 220, a dust collecting device 250, etc.

[0012] Cleaner body 210 forms the main body of vacuum cleaner 200 and is the part that exerts suction power and performs the function of collecting dust. Specifically, as shown in Fig. 2, cleaner body 210 includes, inside cleaner body case 212 that forms the housing, electric vacuum cleaner blower 214 for sucking air and generating airflow, battery 215, other electronic components, a drive circuit, etc.

[0013] A suction port 238y for connecting an extension pipe 280 or a suction tool 290 is provided at the lower end side of the cleaner body 210 (one end side in the longitudinal direction of the cleaner body 210). The cleaner body 210 has a pipe section 238x that forms the suction port 238y at one end and also forms an outlet that communicates with an inlet of the dust collecting device 250. The pipe section 238x extends in the vertical direction (the longitudinal direction of the cleaner body 210). The suction port 238y is provided at the lower side of the cleaner body 210 in the vertical direction.

[0014] Handle portion 220 is a portion provided to allow a user of vacuum cleaner 200 to grip cleaner body 210. Handle portion 220 is provided on the upper end side of cleaner body 210 (the other end side in the longitudinal direction of cleaner body 210). Handle portion 220 forms opening 222 between itself and cleaner body 210, through which a hand can be inserted. Handle portion 220 includes a first portion extending in the up-down direction and a second portion extending in the front-rear direction, and the first portion and second portion having an operation switch have the same dimensional size in the thickness direction.

[0015] Dust collecting device 250 is a part that collects dust sucked by electric vacuum cleaner 200. As shown in FIG. 2, dust collecting device 250 is disposed below electric vacuum cleaner blower 214. In other words, dust collecting device 250 is aligned with pipe portion 238x in the front-to-rear direction (the short-side direction when vacuum cleaner body 210 is viewed from the side). Dust collecting device 250 is provided so as to be continuous with vacuum cleaner body 210. Dust collecting device 250 is of a cyclone type that can centrifuge at least a portion of dust from air sucked into dust collecting container 252 by operation of electric vacuum cleaner blower 214. As shown in FIGS. 2 to 5, etc., dust collecting device 250 has dust collecting container 252, lid 254, locking portion 256, and structure 258. In the dust collecting device 250, when the structure 258 is housed inside the dust collecting container 252, a dust collecting space is formed between the dust collecting container 252 and the structure 258.

[0016] The dust collection container 252 is a container for collecting dust. The dust collection container 252 is formed in a tubular shape (cylindrical in this embodiment). The dust collection container 252 can be a tubular container having a substantially constant outer diameter from the top end to the bottom end, but in this embodiment, the dust collection container 252 has a tapered portion 252a whose outer diameter becomes smaller in the direction from the top end to the bottom end.

[0017] As shown in FIG. 4, dust collection container 252 has dust collection container inlet 253 in peripheral wall 255 (side wall) through which dust flows in. Dust collection container 252 is open at its upper end (opposite the bottom side) and is connectable to vacuum cleaner body 210. Also, as shown in FIG. 3 etc., dust collection container 252 has disposal port 262 for disposing of dust. Disposal port 262 can be provided at any appropriate location in dust collection container 252, but in this embodiment it is provided at the lower end side (bottom side). Specifically, an opening provided at the end of the lower end side (bottom side) of the cylindrical body that forms dust collection container 252 serves as disposal port 262.

[0018] The dust collection container 252 is configured so that the disposal port 262 can be opened and closed by a lid 254 that forms an opening and closing part 264. As shown in FIGS. 3 to 5, the opening and closing part 264 includes the lid 254, a rotation mechanism 268, and a lock part 256.

[0019] The lid 254 is a plate-shaped member that can close the disposal opening 262 of the dust container 252. The rotation mechanism 268 rotatably connects the lid 254 to the dust container 252. The rotation mechanism 268 is provided with a spindle 268a at a position on the bottom side of the dust container 252, on one radial side of the dust container 252 (in this embodiment, at a location adjacent to the vacuum cleaner body 210). The rotation mechanism 268 inserts the spindle 268a through the dust container 252 and the lid 254, thereby rotatably connecting the lid 254 to the dust container 252 on one radial side of the dust container 252.

[0020] The rotation mechanism 268 also includes a biasing member 268b. The biasing member 268b biases the lid 254 in a direction that closes the disposal opening 262. The biasing member 268b applies a biasing force to the lid 254 that is strong enough to maintain the position that closes the disposal opening 262 even when the locking by the locking unit 256 is released. The biasing member 268b also applies a biasing force strong enough to open the lid 254 when the locking by the locking unit 256 is released, by the suction force of the electric blower 26 included in the dust suction device 10.

[0021] 4, 5, etc., the locking portion 256 locks the lid 254 when the disposal opening 262 is closed by the lid 254. The locking portion 256 fixes the free end of the lid 254 to the dust container 252 on the radially opposite side of the dust container 252 with respect to the spindle 268a of the rotation mechanism 268. The locking portion 256 is provided in the dust container 252 at a position facing the inner wall portion 86 of the receiving portion 80 when the dust container 252 is fitted into the receiving portion 80 of the dust suction device 10, which will be described in detail later.

[0022] The locking unit 256 can have various configurations as long as it can lock the lid 254. In this embodiment, the locking unit 256 can be released regardless of whether the vacuum cleaner 200 is attached to the dust suction device 10. In other words, the locking structure formed by the locking unit 256 can be released by a user operation (for example, a button operation or an unlocking operation) regardless of whether the vacuum cleaner 200 is detached from the dust suction device 10. More specifically, as shown in FIGS. 3 and 5 , in this embodiment, the locking unit 256 can place the lid 254 in a locked state or an unlocked state by engaging or disengaging a locking piece 270 provided on the dust collection container 252 with the lid 254.

[0023] Lock piece 270 is a plate-like member disposed on the lower end side of dust collection container 252, extending from dust collection container 252 toward opening / closing unit 264. Lock piece 270 is attached to dust collection container 252 by lock spindle 272 at a middle portion in the extending direction so as to be rotatable (swingable) relative to dust collection container 252.

[0024] As shown in FIG. 5 and other figures, a portion (base end 270a) of the lock piece 270 that is closer to the base end than the lock spindle 272 (above the dust container 252) is biased in a direction away from the circumferential surface of the dust container 252 by a lock piece biasing member 270d provided between the dust container 252 and the base end 270a. As a result, a portion (tip end 270b) of the lock piece 270 that is closer to the tip end than the lock spindle 272 (toward the open-close unit 264) is biased in a direction toward the circumferential surface of the lid 254. In addition, the base end 270a functions as a contact portion 270e that can be contacted by an unlocking portion 88 provided on the receiving portion 80, as will be described in detail later. In particular, the outer surface of the contact portion 270e functions as a contact surface 270f against which the unlocking portion 88 comes into contact. The contact surface 270f is inclined so as to approach the inner wall portion 86 of the receiving portion 80 in a direction away from the rotation center of the lock piece 270.

[0025] As shown in FIGS. 1 and 2, the lock piece 270 has a locking portion 270c at a tip end 270b. The shape of the locking portion 270c can be any suitable shape as long as it is capable of locking, but in this embodiment, it is hook-shaped. Furthermore, an engagement recess 264a (catch) is provided on the periphery of the opening / closing portion 264 (lid body 254) at a position where the locking portion 270c arrives when the opening / closing portion 264 (lid body 254) closes the disposal opening 262. Therefore, when the disposal opening 262 is closed by the opening / closing portion 264 (lid body 254), the dust collecting device 250 can maintain the closed state by the biasing force of the biasing member by engaging the locking portion 270c of the lock piece 270 with the engagement recess 264a of the opening / closing portion 264 (lid body 254). In addition, by applying a pressing force to the base end of the lock piece 270 against the biasing force of the biasing member, the lock piece 270 is swung around the lock support shaft 272 to release the engagement of the lock piece 270 with the engagement recess 264a, and the opening / closing part 264 can be set to the open state.

[0026] Extension tube 280 is a cylindrical member that detachably connects cleaner body 210 and suction tool 290. One end of extension tube 280 is shaped so that it can be inserted into suction port 238y provided in tube section 238x of cleaner body 210, and the other end is shaped so that it can be connected to suction tool 290. By connecting cleaner body 210 and suction tool 290 via extension tube 280, a continuous, communicating path (air passage) from suction tool 290 to cleaner body 210 can be formed.

[0027] Suction tool 290 is connected directly to suction port 238y of vacuum cleaner body 210, or indirectly via extension pipe 280. Suction tool 290 has suction tool body 292 and joint part 294. Suction tool body 292 has suction port 292a for sucking in dust (see FIG. 10 ). Suction port 292a opens toward the bottom. In addition, joint part 294 is connectable to suction port 238y or extension pipe 280. Joint part 294 is rotatable relative to suction tool body 292.

[0028] ≪Dust suction device 10≫ As shown in Fig. 1, the dust suction device 10 is for recovering dust collected by the dust collecting device 250 in the electric vacuum cleaner 200. Also, as shown in Fig. 2, the dust suction device 10 is configured to be able to support the electric vacuum cleaner 200.

[0029] The dust suction device 10 has a device main body 20, a dust collection unit 50, and a receiving unit 80. As shown in Figures 1 and 2, the dust suction device 10 is capable of collecting dust from the dust collection unit 250 of the vacuum cleaner 200 to the dust collection unit 50 while the receiving unit 80 receives the dust collection unit 250 and supports the vacuum cleaner 200.

[0030] 5 and 6, the device body 20 is configured as a hollow box-like body that is circumferentially surrounded by a peripheral portion 20e having a front portion 20a, a rear portion 20b, a right portion 20c, and a left portion 20d, and is closed at the top and bottom by a top portion 20f and a bottom portion 20g. The device body 20 also has a base portion 20h on the bottom portion 20g.

[0031] Although not an essential component, the device main body 20 has an engagement structure 20i in the front part 20a that can engage with and support the vacuum cleaner 200 (extension tube 280) in an upright state. Therefore, as shown in Figures 1 and 2, the front part 20a is the part that is located rearward of the vacuum cleaner 200 in a supported state in the front-to-rear direction. The rear part 20b is the part that is located rearward of the front part 20a in the front-to-rear direction. In addition, the right side part 20c and the left side part 20d are side parts that face each other in the left-right direction that is perpendicular to the front-to-rear direction.

[0032] Specifically, as shown in FIG. 15(b), the engagement structure 20i has grooves 20m extending in the left-right direction on both the left and right sides of a recess that recesses rearward from the front portion 20a. Also, as shown in FIG. 15(c), the extension tube 280 has an engagement portion 292b on its rear side that engages with the engagement structure 20i. The engagement portion 292b has protrusions 292c, 292c that can be inserted into the grooves 20m and protrude in the left-right direction. Furthermore, as the lower ends of the protrusions 292c, 292c of the engagement portion 292b slide on the inclined portions 20l on both the left and right sides that descend from the front side to the rear side, the protrusions 292c, 292c are guided toward the grooves 20m on the rear sides of the inclined portions 20l and fit into the grooves 20m. The dust suction device 10 may also have a charging function, in which case an electric current-carrying part 20n having one or more (two in the illustrated example) terminals is provided in the recess of the engagement structure 20i. The engagement part 292b provided on the extension tube 280 has a through-hole 292d into which the terminal of the electric current-carrying part 20n is inserted, and a power-receiving part 292e electrically connected to the electric current-carrying part 20n inserted into the through-hole 292d.

[0033] As shown in FIGS. 1 and 2, the base 20h is provided with a switch unit 20k for turning on the electric blower 26 (on operation), although this is not a required component. The switch unit 20k can be any suitable device capable of turning on the electric blower 26. In this embodiment, the switch unit 20k is a foot switch that can be operated by the user's foot. The switch unit 20k can be configured to only perform the on operation, or to perform the on operation and also the off operation (off operation) of the electric blower 26. The switch unit 20k can be configured with a single switch or with multiple switches depending on the type of operation. Furthermore, the switch unit 20k can be configured to automatically turn off the electric blower 26 after a predetermined time has elapsed by turning it on. As shown in FIGS. 2 and 7, the switch unit 20k is connected to the control unit (control board) 40 via lead wires (schematically shown by dashed lines in the figures), and the lead wires are arranged within the base 20h. The control unit 40 is disposed in front of the electric blower 26 and above the exhaust flow path 34 .

[0034] As shown in Figure 6 and other figures, the device body 20 has a shape in which the portion above the base portion 20h is bent in a substantially "L" shape (inverted "L" shape when viewed from the front) when viewed from the side. As shown in Figures 1 to 4 and 6, the device body 20 has a first body component 22 that extends in the up-down direction on the front portion 20a side, and a second body component 24 that extends in the front-rear direction on the bottom portion 20g side. In the device body 20, the first body component 22 and the second body component 24 are in communication with each other.

[0035] The first main body component 22 is a portion that is connected to the receiving portion 80, which will be described in detail later, and the dust collecting portion 50. As shown in Fig. 7 and other figures, the first main body component 22 has a receiving portion connecting portion 22a that is connected to the receiving portion 80 via a connecting pipe 83, a dust collecting portion connecting portion 22b that is connected to the dust collecting portion 50 (dust collection box 52), which will be described in detail later, and a dust collecting path component 22c that connects the receiving portion connecting portion 22a and the dust collecting portion connecting portion 22b.

[0036] Here, the receiving part 80 is capable of fitting and connecting the dust collecting device 250 (dust collection container 252) of the above-described electric vacuum cleaner 200. The receiving part 80 is connected to the receiving part connector 22a of the first main body component 22 via a connecting pipe 83. Therefore, in the device main body 20, dust discharged from the dust collection container 252 at the receiving part 80 can reach the first main body component 22 via the connecting pipe 83. The receiving part 80 is provided to rise upward from the first main body component 22. Also, as shown in FIG. 3 and other figures, the dust collection container 252 of the dust collecting device 250 has a lid 254 that can be opened when it is fitted into the receiving part 80. Therefore, by fitting the dust collection container 252 into the receiving part 80 and opening the lid 254, dust collected in the dust collection container 252 can be moved to the first main body component 22 via the connecting pipe 83. The connecting pipe 83 also has a connecting part 83a that is connected to the receiving part connecting part 22a of the first main body component 22. Specifically, as shown in FIG. 15(a), the receiving part connecting part 22a is formed by a pipe configured to extend upward from the top part 20f of the first main body component 22. The connecting part 83a is connected to the pipe that constitutes the receiving part connecting part 22a. The connecting part 83a is also configured to be attachable to and detachable from the receiving part connecting part 22a. Specifically, the connecting part 83a is provided with an attachment / detachment button 83b. The mechanism for attaching and detaching the connecting part 83a to the receiving part connecting part 22a using the attachment / detachment button 83b is the same as the mechanism for attaching and detaching the extension pipe 280 to the vacuum cleaner body 200, and conventionally known technology can be used.

[0037] 6, the first main body forming portion 22 is configured so that the portion on the rear portion 20b side (back surface 22d) is closed except for the dust collection unit connecting portion 22b. Therefore, the first main body forming portion 22 is open toward the rear portion 20b at the dust collection unit connecting portion 22b, but the other portions are substantially closed.

[0038] The dust collection unit connector 22b is for connecting the dust collection unit 50 (dust collection box 52). The dust collection unit connector 22b protrudes from the back surface 22d toward the rear portion 20b. As shown in FIGS. 13 and 14, the dust collection box 52, which will be described in detail later, is provided with an opening (inlet 60a) that forms an inlet 60 through which dust and air flow in. As shown in FIG. 7, the dust collection unit connector 22b is provided at a position where the inlet 60 of the dust collection box 52 arrives when the dust collection box 52 is attached to the device body 20. The dust collection unit connector 22b is connectable to the inlet 60. Therefore, when the dust collection box 52 is attached to the device body 20, the device body 20 and the dust collection box 52 can be communicated with each other via the dust collection unit connector 22b.

[0039] 7 and other figures, dust collection path forming portion 22c is formed so as to extend downward from receiving portion connecting portion 22a inside receiving portion connecting portion 22a, and bend rearward at its lower end to reach dust collection portion connecting portion 22b. By attaching dust collection portion 50 to the rear portion 20b side of first main body forming portion 22, a passage communicating with dust collection portion 50 via dust collection path forming portion 22c can be formed. Therefore, by attaching dust collection portion 50 to first main body forming portion 22, a series of ventilation paths can be formed that introduces dust-laden air supplied from receiving portion 80 via connecting pipe 83 into dust collection portion 50.

[0040] As shown in Figures 5 to 7, the second main body component 24 is a portion provided below the first main body component 22. The second main body component 24 is formed so as to smoothly connect to the first main body component 22 (so as to be substantially flush in the illustrated example) at the front part 20a (front face), right part 20c, and left part 20d of the device body 20. Meanwhile, the second main body component 24 has a mounting part 24a at the rear part 20b of the device body 20 that protrudes rearward beyond the back surface 22d of the first main body component 22.

[0041] The mounting portion 24a functions as a portion on which the dust collection box 52 is placed when the dust collection unit 50, which will be described in detail later, is attached to the device body 20. The mounting portion 24a has an opening 24f that opens upward. As shown in FIG. 13 and other figures, an opening that serves as an outlet portion 64 for allowing air to flow out of the dust collection box 52 is formed in the bottom of the dust collection box 52, which will be described in detail later. Therefore, as shown in FIGS. 9 and 10 and other figures, the opening 24f is located at a position that allows communication with the outlet portion 64 when the dust collection box 52 is placed on the mounting portion 24a. Furthermore, as described above, when the dust collection unit 50 is attached to the device body 20, a continuous exhaust path is formed from the upstream side of the dust collection box 50 (the receiving portion 80 side) to the dust collection box 50.

[0042] Specifically, when dust collection unit 50 is attached to device main body 20, communication is established between receiving portion 80 and dust collection unit 50 via dust collection unit connecting portion 22b provided on first main body constituent portion 22 and inlet portion 60 provided on dust collection box 52. Therefore, when dust collection unit 50 is attached to device main body 20, a portion on the upstream side (receiving portion 80 side) of dust collection unit 50 and a portion on the downstream side (electric blower 26 side) of dust collection unit 50 are connected to each other. Note that it is advisable to provide a seal or the like at the connecting portion between dust collection unit connecting portion 22b and inlet portion 60 and the connecting portion between dust collection box 52 and mounting portion 24a (opening 24f) to prevent leakage of air, dust, etc.

[0043] 7, the second main body component 24 has, in the front-rear direction of the device body 20, roughly divided into a first region 24b on the mounting portion 24a side and a second region 24c on the lower side of the first main body component 22. The first region 24b can be roughly divided into two regions: a filter arrangement portion 24d and a blower arrangement portion 24e.

[0044] As shown in FIGS. 7, 9, 10, etc., the filter arrangement section 24d is located higher (closer to the opening 24f) than the fan arrangement section 24e in the first region 24b. The filter arrangement section 24d is provided with a support section 28 and a filter member 30. The support section 28 supports the filter member 30 at a predetermined position. In this embodiment, the support section 28 is provided so as to support the filter member 30 at a position facing the opening 24f in the mounting section 24a. Specifically, a support frame 25 as shown in FIG. 11 is disposed inside the device main body 20, and the support section 28 is assembled to the support frame 25. This allows the support section 28 to support the filter member 30 in a state where it is disposed over substantially the entire opening region of the opening 24f. The support section 28 is located between the opening 24f and the electric fan 26 disposed in the fan arrangement section 24e. Furthermore, the support portion 28 is located between the electric blower 26 and an outlet portion 64 provided in the dust collecting portion 50, as will be described in detail later.

[0045] Furthermore, the support portion 28 can support the filter member 30 while ensuring breathability of the filter member 30. In this embodiment, the support portion 28 itself is breathable when supporting the filter member 30, and forms a gap on the downstream side of the filter member 30 in the air flow direction (the air outflow side). More specifically, the support portion 28 is made of a hollow member. When the support portion 28 supports the filter member 30, a hollow space is formed on the lower side. Therefore, the support portion 28 can support the filter member 30 while forming a gap on the lower side of the filter member 30, allowing air to flow smoothly downward through the opening 24f and pass through the filter member 30. Furthermore, as shown in FIG. 10 , the support portion 28 has an outlet opening 28e on the bottom wall of the filter mounting portion 24d (support portion 28) to communicate between the filter mounting portion 24d and the electric blower 26.

[0046] Specifically, in this embodiment, as shown in Figures 10 and 11, the support portion 28 has a filter fitting portion 28a that fits and supports the filter member 30, a blower connection portion 28b that is connected to the electric blower 26, and an intermediate portion 28c between them. The support portion 28 is hollow from the filter fitting portion 28a through the intermediate portion 28c to the blower connection portion 28b. Therefore, when the filter member 30 is fitted into the filter fitting portion 28a, the portion that forms the intermediate portion 28c forms a gap below the filter member 30. Furthermore, by connecting the blower connection portion 28b to the electric blower 26, the support portion 28 can concentrate the suction force of the electric blower 26 on the path that passes through the filter member 30 and leads to the electric blower 26.

[0047] The filter member 30 is disposed in a state supported by the support portions 28 as described above. Specifically, as shown in FIGS. 2, 7, 16, etc., the support portion 28 has support members 28d in the filter disposing portion 24d that protrude from the bottom wall toward the filter member 30. The support members 28d may be a plurality of plate-shaped members or a plurality of rod-shaped members. However, in this embodiment, as shown in FIGS. 7 and 16, the support members 28d are two plate-shaped members 28x, 28x aligned in the front-rear direction and one plate-shaped member 28y intersecting the two plate-shaped members 28x, 28x, and these support members 28d support the filter member 30. The upper ends of the three plate-shaped members 28x, 28x, 28y that abut against the filter member 30 are at the same height. 10 and other figures, the filter member 30 is provided between the electric blower 26 and an outlet 64, which serves as an air outlet in the dust collection box 52 (dust collection unit 50) placed on the mounting unit 24a. This allows the filter member 30 to filter the air flowing from the outlet 64 toward the electric blower 26. Furthermore, the filter member 30 is arranged so as to be spaced apart from the outlet 64 when supported by the support unit 28. This prevents the air flowing out from the outlet 64 from passing through a specific part of the filter member 30 (for example, a part facing the outlet 64), and allows almost the entire filter member 30 to be used for filtering the air.

[0048] The filter member 30 can be a single member or a combination of multiple members. The filter member 30 can be made of, for example, a pleated filter, a sponge filter, a nonwoven fabric filter, or the like. Furthermore, by combining multiple members, the filter member 30 can prevent dust contained in the airflow from flowing into the electric blower 26, compared to a single member. Furthermore, because an opening 24f is present above the filter member 30, the filter member 30 can be detached from the support portion 28. This allows for easy maintenance of the filter member 30.

[0049] The fan arrangement section 24e is a section provided below the filter arrangement section 24d in which the support section 28 and the filter member 30 are arranged. The fan arrangement section 24e is a space provided mainly for arranging the electric fan 26.

[0050] Electric blower 26 is arranged in blower arrangement section 24e with its air intake facing support section 28 and filter member 30. In this embodiment, electric blower 26 is arranged in filter arrangement section 24d with blower connection section 28b of support section 28, which is formed hollow, connected to the air intake.

[0051] As shown in FIGS. 9 to 12 , an exhaust flow path constituent 32 is connected to the exhaust port of electric blower 26. Exhaust flow path constituent 32 is a component constituting a part of exhaust flow path 34 through which exhaust gas from electric blower 26 flows. One end of exhaust flow path 34 is connected to communicate with the exhaust port of electric blower 26, and the other end is connected to communicate with external exhaust port 20j. Exhaust flow path 34 extends from the exhaust port of electric blower 26 to one side in the left-right direction (here, the left side) and then bends (curves), extends to one side in the front-rear direction (here, the front side), then bends (curves), and extends to the other side in the left-right direction (here, the right side). In second main body constituent portion 24, exhaust flow path constituent 32 is provided across blower mounting portion 24e of first region 24b where electric blower 26 is disposed, and second region 24c. As a result, the exhaust flow path constituent 32 can guide the flow of exhaust gas from the first region 24b side (in this embodiment, the rear part 20b side of the apparatus body 20) toward the second region 24c side (in this embodiment, the front part 20a side of the apparatus body 20). Moreover, the exhaust flow path constituent 32 is provided in a region of the apparatus body 20 opposite to where the external exhaust opening 20j is provided. In this embodiment, the external exhaust opening 20j is provided in the right side part 20c of the apparatus body 20, whereas the exhaust flow path constituent 32 is connected to a position on the left side part 20d side (in the illustrated example, a position adjacent to the inside of the apparatus body 20 with respect to the left side part 20d).

[0052] As described above, one end of exhaust flow path constituent 32 is connected to communicate with the exhaust port of electric blower 26, and the other end is connected to communicate with duct portion 36 (first exhaust flow path member) provided on the second region 24c side. In exhaust flow path 34, exhaust flow path constituent 32 (second exhaust flow path member) forms a portion that extends so as to bend relative to duct portion 36.

[0053] The duct portion 36 is provided inside the second region 24c of the apparatus body 20, extending across from the right side 20c toward the left side 20d. In this embodiment, the duct portion 36 is formed by providing a flow path that extends across the support frame 25 provided inside the apparatus body 20, from the right side 20c toward the left side 20d. In this way, the exhaust flow path 34 formed by the exhaust flow path constituent 32 and the duct portion 36 is ensured to have a sufficient length by utilizing the internal space of the second main body constituent portion 24 of the apparatus body 20.

[0054] 7, 9, 10, etc., the second main body component 24 is provided with an electric blower 26. Therefore, by operating the electric blower 26 with the dust collecting part 50 attached to the first main body component 22, the device main body 20 can generate an airflow that flows from the receiving part 80 through the first main body component 22 and the dust collecting part 50 to the second main body component 24.

[0055] Dust collection unit 50 is a part that collects dust contained in the airflow flowing from electric vacuum cleaner 200 toward dust suction device 10 by operating electric blower 26. Dust collection unit 50 has dust collection box 52 and fixed part 90 (see FIG. 13).

[0056] 4, the dust collection box 52 is a container that is detachable from the device body 20. When the dust collection box 52 is attached to the device body 20 (the outer surface of the device body 20), the dust collection box 52 is provided so as to be exposed from the device body 20. In this embodiment, the dust collection box 52 is attached in a state where it is joined to the rear part 20b of the first body constituent part 22 of the device body 20 and is placed on and connected to the placing part 24a of the second body constituent part 24.

[0057] As shown in Figures 13 and 14, the dust collection box 52 is a box-shaped container surrounded on all four sides by four wall surfaces (peripheral walls) consisting of a first side wall 52a to a fourth side wall 52d, and closed at the top and bottom by a top wall 52e and a bottom wall 52f. The first side wall 52a is a wall that forms the surface facing the device main body 20 (the front part 20a side) when the dust collection box 52 is attached to the device main body 20. The second side wall 52b faces the first side wall 52a and forms the surface facing the rear part 20b. The third side wall 52c is a wall that forms the surface facing the left part 20d, and the fourth side wall 52d faces the third side wall 52c and forms the surface facing the right part 20c. The top wall 52e is a wall that forms the surface facing the top part 20f of the dust collection box 52. Bottom wall 52f faces top wall 52e and forms the surface on the bottom 20g side. The interior space of dust collection box 52 is divided by partition 54 into two regions: dust collection space 56 and flow path 58. Dust collection box 52 also includes inlet 60, bottom lid 62, outlet 64, and window 66.

[0058] As shown in FIGS. 8 and 10 , the dust collection space 56 is a space provided inside the dust collection box 52 to collect dust. The dust collection space 56 is located approximately in the center of the opposing third side wall 52c and fourth side wall 52d. The flow path 58 is a space partitioned by the partition 54 at positions offset from the dust collection space 56 toward the third side wall 52c and the fourth side wall 52d. The flow path 58 is a space through which air discharged from the dust collection space 56 flows. For example, as shown in FIGS. 17 and 18 , the flow path 58 may be a single flow path provided only on either the third side wall 52c or the fourth side wall 52d of the dust collection space 56. In particular, in FIG. 18 , the flow path 58 on the third side wall 52c side is eliminated, eliminating the first outlet portion 64a. The bottom cover 62 is rotatably supported by a pivot 62a at the lower end of the second partition wall 55b. 18 is not provided in the bottom lid 62, and the bottom lid 62 is provided to avoid the second outlet portion 64b. In this embodiment, the flow paths 58 include a first flow path 58a provided on the third side wall 52c side of the dust collection space 56, and a second flow path 58b provided on the fourth side wall 52d side of the dust collection space 56. The first flow path 58a and the second flow path 58b are provided approximately symmetrically to each other with the dust collection space 56 interposed therebetween.

[0059] The partition 54 serves to separate a dust collection space 56 formed inside the dust collection box 52 from a flow path 58. The partition 54 is constituted by a partition wall 55 erected laterally relative to the dust collection space 56. In the present embodiment, a first flow path 58a and a second flow path 58b are provided as the flow path 58. Therefore, the partition 54 includes, as the partition wall 55, a first partition wall 55a that separates the dust collection space 56 from the first flow path 58a, and a second partition wall 55b that separates the dust collection space 56 from the second flow path 58b. The first partition wall 55a and the second partition wall 55b are provided to face each other across the dust collection space 56. The first partition wall 55a and the second partition wall 55b are provided approximately symmetrically. The first partition wall 55a and the second partition wall 55b have at least a portion where the distance between them (the width in the opposing direction), i.e., the width of the dust collection space 56, is narrow.

[0060] In this embodiment, the partition wall 55 has a narrowing portion 56a below the center between the bottom wall 52f and the top wall 52e of the dust collection box 52. The narrowing portion 56a is located below the center between the bottom wall 52f and the top wall 52e of the dust collection box 52. The narrowing portion 56a narrows the gap between the first partition wall 55a and the second partition wall 55b (the width of the dust collection space 56). The first partition wall 55a and the second partition wall 55b are generally parallel to each other in a portion closer to the top wall 52e than the narrowing portion 56a and a portion closer to the bottom wall 52f than the narrowing portion 56a. Therefore, the width of the dust collection space 56 is generally constant in the top-wall-side dust collection space 56b, which is closer to the top wall 52e than the narrowing portion 56a, and in the bottom-wall-side dust collection space 56c, which is closer to the gap narrowing portion 56a and the bottom wall 52f. The width of the bottom-wall-side dust collection space 56c is smaller than the width of the top-wall-side dust collection space 56b.

[0061] The dust collected in the dust collection space 56 can be disposed of through a disposal opening 68 provided in the bottom wall 52f. The disposal opening 68 can be opened and closed by a bottom lid 62, which will be described in detail later.

[0062] The partition wall 55 has a partition communication portion 55c that communicates the dust collection space 56 and the flow path 58. In this embodiment, the partition communication portions 55c, 55c (see FIG. 10) are provided in both the first partition wall 55a and the second partition wall 55b that are provided as the partition wall 55. The partition communication portion 55c may be provided at any position on the partition wall 55. The partition communication portion 55c provided on the first partition wall 55a may differ from the partition communication portion 55c provided on the second partition wall 55b in terms of position, shape, opening area, etc. In this embodiment, the partition communication portion 55c provided on the first partition wall 55a and the partition communication portion 55c provided on the second partition wall 55b are formed to have approximately the same shape and opening area and are located at approximately the same position in the up-down direction (the direction from the top wall 52e to the bottom wall 52f) Specifically, the partition communication portion 55c is located above the center position between the bottom wall 52f and the top wall 52e of the dust collection box 52 (the area on the top wall side dust collection space 56b side), and is arranged at approximately the same position in the vertical direction, has approximately the same rectangular shape, and has approximately the same opening area.

[0063] The partition communication portion 55c is provided with a filter 57. In the present embodiment, the partition communication portions 55c, 55c provided in the first partition wall 55a and the second partition wall 55b are provided with substantially identical first and second filters 57a, 57b, respectively, as the filters 57. This allows the air flowing from the inlet portion 60 toward the outlet portion 64 to be filtered as it flows from the dust collection space 56 to the first flow path 58a and the second flow path 58b.

[0064] The inlet 60 is a portion that serves as an inlet for dust and air to enter the dust collection box 52. The inlet 60 is provided at a position that is higher than the outlet 64 when the dust collection box 52 is attached. The inlet 60 may be provided, for example, on any of the peripheral walls consisting of the first side wall 52a to the fourth side wall 52d of the dust collection box 52, or on the top wall 52e. In this embodiment, the inlet 60 is provided in the first side wall 52a so as to open at a position that corresponds to the dust collection part connecting part 22b provided on the first main body constituent part 22 of the device body 20. Therefore, when the dust collection box 52 is attached to the device body 20, the inlet 60 is in communication with the receiving part connecting part 22a of the device body 20.

[0065] The inlet portion 60 is provided at a position closer to the top wall 52e than to the bottom wall 52f of the dust collection box 52. Moreover, the inlet portion 60 is provided at a position close to the center position between the bottom wall 52f and the top wall 52e of the dust collection box 52, and in relation to the position of the top wall 52e.

[0066] The inlet section 60 has an inlet 60a and a guide wall 60b. The inlet 60a is an opening through which dust flows into the dust collection box 52 together with air. The inlet 60a is connectable by inserting the dust collection section connecting section 22b of the device main body 20 (first main body forming section 22) described above. The guide wall 60b is a peripheral wall provided around the inlet 60a. The guide wall 60b can guide the air that flows in from the inlet 60a toward the second side wall 52b.

[0067] The bottom lid 62 is a lid that can open and close a disposal opening 68 formed in the bottom wall 52f. The bottom lid 62 is rotatably supported on the bottom wall 52f by a rotation shaft 62a. The rotation shaft 62a is located outward from the disposal opening 68 and below the bottom wall 52f.

[0068] The outlet portion 64 is provided on the bottom cover 62. The outlet portion 64 allows air that has passed through the flow path 58 to flow out of the dust collection box 52. When the dust collection box 52 (dust collection unit 50) is attached to the device body 20, the outlet portion 64 is provided at a position facing the opening 24f and the filter member 30 provided in the second main body component 24 at a predetermined distance. In this embodiment, a first flow path 58a and a second flow path 58b are provided as the flow path 58. Therefore, the bottom cover 62 is provided with a first outlet portion 64a as the outlet portion 64 corresponding to the first flow path 58a, and a second outlet portion 64b as the outlet portion 64 corresponding to the second flow path 58b. The outlet portion 64 is arranged to be aligned with the waste opening 68 in the left-right direction. The first outlet portion 64a and the second outlet portion 64b are both provided at positions facing the opening 24f and the filter member 30 at a predetermined distance. The bottom cover 62 also has a pressing member 64c that presses the filter member 30 downward to separate the filter member 30 from the bottom cover 62. The pressing member 64c may be a protruding member. The bottom cover 62 can also be considered a ceiling wall of the filter placement section 24d.

[0069] As shown in FIG. 8 and other figures, the dust box 52 has a bottom cover locking portion 53 that locks the bottom cover 62 when the bottom cover 62 closes the disposal opening 68. The bottom cover locking portion 53 can have various configurations as long as it can secure the bottom cover 62. For example, the bottom cover locking portion 53 can have a bottom cover locking piece 53a provided on either the dust box 52 or the bottom cover 62, and a lock piece engaging portion 53b on the other side with which the bottom cover locking piece 53a engages. In the illustrated example, the dust box locking piece 53a is provided on the dust box 52 side, and the lock piece engaging portion 53b is provided on the bottom cover 62 side. The bottom cover locking portion 53 is normally biased so that the dust box locking piece 53a maintains an engaged state with the lock piece engaging portion 53b. However, by pressing the dust box locking piece 53a against this biasing force, the engagement between the dust box locking piece 53a and the lock piece engaging portion 53b can be released, allowing the bottom cover 62 to be opened.

[0070] The window 66 is intended to enable the dust collection space 56 to be viewed from outside the dust collection box 52. The window 66 is formed of a transparent member. The window 66 can be provided on the top wall 52e or a side wall (second side wall 52b when provided in the configuration of this embodiment) of the dust collection box 52. In this embodiment, the window 66 is provided on the top wall 52e at a position corresponding to the dust collection space 56 (above the dust collection space 56). This allows the user to check the amount of dust collected in the dust collection space 56 through the window 66.

[0071] The fixing portion 90 is used to lock the dust collection box 52 to the device main body 20. The fixing portion 90 can have various configurations as long as it can lock the dust collection box 52. In this embodiment, however, the fixing portion 90 is provided on the first side wall 52a of the dust collection box 52 and is attracted to the magnet 20x provided on the rear part 20b of the device main body 20. The fixing portion 90 is provided in a position facing the magnet 20x when the dust collection box 52 is placed on the mounting portion 24a of the device main body 20 and the first side wall 52a is in contact with the rear part 20b of the device main body 20. This allows the dust collection box 52 to be fixed to the device main body 20 by utilizing the magnetic force acting between the fixing portion 90 and the magnet 20x. Furthermore, the bottom wall 52f of the dust box 52 has recesses 63 (see FIG. 13) into which the guide protrusions 24g (see FIG. 6) of the mounting portion 24a fit, thereby making it possible to position the dust box 52 relative to the mounting portion 24a.

[0072] In the above-described vacuum cleaner system S, when the dust collection container 252 of the vacuum cleaner 200 is connected to the receiving part 80 of the dust suction device 10 and the cover 254 is open, the dust collection unit 50 of the dust suction device 10 and the dust collection container 252 are in communication (communicating state). In this communicating state, when the electric blower 26 provided in the dust suction device 10 is operated, the suction force generated thereby acts on the dust collection container 252. That is, when the electric blower 26 is operated in the communicating state in which the dust collection unit 50 and the dust collection container 252 are in communication as described above, air flows into the dust collection box 52 from the inlet part 60 that is in communication with the receiving part 80 in the device body 20, and an airflow is generated that flows out from the outlet part 64 toward the electric blower 26. As a result, dust is sucked out of the dust collection container 252 and collected in the dust collection unit 50. The airflow flowing toward the electric blower 26 passes through the exhaust port of the electric blower 26, the exhaust flow path structure 32, and the duct portion 36, and is exhausted to the outside of the device body 20 through the external exhaust opening 20j.

[0073] The placement section 24a is open by having the opening 24f, but the opening 24f can be opened and closed by providing a lid (a ceiling wall of the filter placement section 24d). The lid may have one or more openings through which the filter mounting section 24d and the dust collecting section 50 communicate. The lid preferably has a pressing member that presses the upper side of the filter member 30 downward to space the filter member 30 away from the openings in the lid. This pressing member may be a protruding member, similar to the pressing member 64c described above.

[0074] <Action and effect> The following describes the effects and the like obtained by the configurations of the dust suction device 10 and the vacuum cleaner system S described above.

[0075] [Dust suction device 10 and vacuum cleaner system S according to the first embodiment of the present invention] A dust collection device for collecting dust from a vacuum cleaner has been disclosed in Japanese Patent Laid-Open Publication No. 2023-3875. In the prior art described in the above document, the vacuum cleaner includes a main body having a first electric blower that generates suction force, and a first dust collection unit that collects dust. Furthermore, the dust collection device described in Patent Document 1 includes a second dust collection unit that communicates with the first dust collection unit provided in the vacuum cleaner to collect dust collected from the vacuum cleaner. The dust collection device described in the above document has a so-called paper bag-type second dust collection unit in which dust can be collected inside a paper bag by attaching a paper bag.

[0076] However, if the dust collection device in the above document is configured in a similar manner, there is room for improvement in that the user is forced to replace the paper pack, which is a consumable item.

[0077] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a dust suction device that can be used without using a paper bag, and a vacuum cleaner system that includes the same.

[0078] (1-1) The dust suction device 10 of the present invention is for recovering dust collected in a dust collection container 252 of an electric vacuum cleaner 200, and comprises a device body 20 having an electric blower 26 that generates suction force, and a dust collection unit 50 that collects dust sucked from the dust collection container 252 by the electric blower 26 in a dust collection box 52, the dust collection container 252 having a lid 254 that can open and close a disposal opening 262 on the bottom side, the dust collection container 252 in a state where the lid 254 is open, and When connected to the dust collection section 50, the suction force of the electric blower 26 acts on the dust collection container 252, causing the dust sucked out of the dust collection container 252 to be collected in the dust collection section 50, and the dust collection section 50 has the dust collection box 52, which has an inlet section 60 and an outlet section 64, that is detachable from the device main body 20, and the suction of the electric blower 26 causes air to flow into the dust collection box 52 from the inlet section 60, and the air in the dust collection box 52 flows out from the outlet section 64.

[0079] The dust suction device 10 of the present invention can collect dust sucked from the dust collection container 252 of the electric vacuum cleaner 200 by the electric blower 26 in the dust collection box 52 constituting the dust collection unit 50. Furthermore, when the dust collection container 252 and the dust collection unit 50 are in communication with each other with the lid 254 open, the dust suction device 10 of the present invention can apply the suction force of the electric blower 26 to the dust collection container 252, causing air to flow into the dust collection box 52 from the inlet 60 and causing the air in the dust collection box 52 to flow out from the outlet 64. This allows the dust suction device 10 of the present invention to collect dust sucked from the dust collection container 252 in the dust collection unit 50. Furthermore, the dust suction device 10 of the present invention has a dust collection box 52 that is detachable from the device main body 20. Therefore, the dust suction device 10 of the present invention can be used without using a paper bag.

[0080] (1-2) In the dust suction device 10 of the present invention relating to (1-1) above, the dust collection device 250 of the electric vacuum cleaner 200 has the dust collection container 252, the lid body 254, and a locking unit 256 that locks the disposal port 262 in a closed state using the lid body 254, and it is preferable that the locking unit 256 can be released when the electric vacuum cleaner 200 is detached from the dust suction device 10.

[0081] As described above in (1-2), the dust suction device 10 of the present invention can dispose of the dust in the dust collection container 252 by unlocking the locking portion 256 while the dust suction device 10 is detached from the dust suction device 10.

[0082] (1-3) In the dust suction device 10 of the present invention according to (1-1) or (1-2) described above, the inlet portion 60 is preferably arranged at a position closer to the top wall 52e of the dust collection box 52 than to the bottom wall 52f.

[0083] By configuring the dust suction device 10 of the present invention as described above in (1-3), it is possible to prevent the inlet section 60 from being blocked by dust or from adhering to the inlet section 60, while making it possible to collect a large amount of dust in the dust collection box 52.

[0084] (1-4) In the dust suction device 10 of the present invention relating to any of the above-mentioned (1-1) to (1-3), the inlet portion 60 is preferably arranged at a position close to the central position between the bottom wall 52f and the top wall 52e of the dust collection box 52, and in relation to the position of the top wall 52e.

[0085] By configuring the dust suction device 10 of the present invention as described above in (1-4), it is possible to prevent the inlet section 60 from being blocked by dust and the dust from adhering to the inlet section 60, and to make it possible to collect a large amount of dust in the dust collection box 52 while preventing dust from adhering to the ceiling wall 52e.

[0086] (1-5) In the dust suction device 10 of the present invention relating to any of the above-mentioned (1-1) to (1-4), the inflow section 60 has an inlet 60a through which dust flows in and a guide wall 60b arranged around the inlet 60a, the dust collection box 52 has a first side wall 52a having the inlet 60a and a second side wall 52b opposite the first side wall 52a, and the air flowing in from the inlet 60a is guided by the guide wall 60b toward the second side wall 52b.

[0087] As described above in (1-5), the dust suction device 10 of the present invention is expected to have the effect of separating dust from the air by guiding the air flowing in through the inlet 60a provided in the first side wall 52a toward the second side wall 52b using the guide wall 60b and causing the air to collide with the second side wall 52b. Therefore, by being configured as described above in (1-5), the dust suction device 10 of the present invention can improve the dust collection efficiency in the dust collection box 52.

[0088] (1-6) In the dust suction device 10 of the present invention relating to any of the above-mentioned (1-1) to (1-5), the dust collection box 52 preferably has a filter 57 that filters air flowing from the inlet 60 toward the outlet 64.

[0089] By configuring the dust suction device 10 of the present invention as described above (1-6), the dust contained in the air introduced into the dust collection box 52 from the inlet 60 can be captured by the filter 57, and the dust can be prevented from leaking from the outlet 64.

[0090] (1-7) In the dust suction device 10 of the present invention relating to (1-6) above, the dust collection box 52 preferably has a flow path 58 extending from the filter 57 to the outlet 64, a dust collection space 56 in which dust accumulates, and a partition wall 55 that partitions the flow path 58.

[0091] As described above in (1-7), the dust suction device 10 of the present invention is configured to separate the dust collection space 56 where dust accumulates from the flow path 58 through which air from which dust has been removed by passing through the filter 57 flows, thereby preventing dust from being mixed in with the air that has been purified by passing through the filter 57 and being discharged.

[0092] (1-8) In the dust suction device 10 of the present invention relating to (1-6) above, the filter 57 may have a first filter 57a and a second filter 57b, and the dust collection box 52 may have a first flow path 58a extending from the first filter 57a to the outlet 64, a second flow path 58b extending from the second filter 57b to the outlet 64, a first partition wall 55a separating the dust collection space 56 in which dust accumulates from the first flow path 58a, and a second partition wall 55b separating the dust collection space 56 from the second flow path 58b.

[0093] The dust suction device 10 of the present invention is configured to separate the first flow path 58a and the second flow path 58b from the dust collection space 56 by the first partition wall 55a and the second partition wall 55b as described above (1-8), thereby preventing dust from being mixed in with the air flowing through the first flow path 58a and the second flow path 58b and being discharged after passing through the first filter 57a and the second filter 57b and being cleaned.

[0094] (1-9) In the dust suction device 10 of the present invention relating to (1-8) above, the dust collection box 52 preferably has the first partition wall 55a and the second partition wall 55b facing each other as part of the side wall that forms the dust collection space 56, and the width of the first partition wall 55a and the second partition wall 55b in the opposing direction decreases toward the bottom wall 52f of the dust collection box 52.

[0095] By being configured as described above in (1-9), the dust suction device 10 of the present invention can prevent the dust collected inside the dust collection box 52 from flying up from the bottom wall 52f side. This makes it possible for the dust suction device 10 of the present invention to prevent the dust collected in the dust collection box 52 from leaking to the outside together with the air.

[0096] (1-10) In the dust suction device 10 of the present invention relating to (1-8) or (1-9) above, the first flow path 58a and the second flow path 58b may be arranged symmetrically with respect to the inlet portion 60.

[0097] By configuring the dust suction device 10 of the present invention as described above in (1-10), the air that has entered the dust collection box 52 from the inlet 60 can flow approximately evenly toward the first flow path 58a and the second flow path 58b. This allows the dust suction device 10 of the present invention to utilize the first filter 57a and the second filter 57b approximately evenly to capture dust.

[0098] (1-11) In the dust suction device 10 of the present invention according to any one of (1-8) to (1-10) described above, the first flow path 58a and the second flow path 58b may have the same maximum cross-sectional area.

[0099] By configuring the dust suction device 10 of the present invention as described above in (1-11), the air that has entered the dust collection box 52 can flow approximately evenly toward the first flow path 58a and the second flow path 58b. This allows the dust suction device 10 of the present invention to utilize the first filter 57a and the second filter 57b approximately evenly to capture dust.

[0100] (1-12) In the dust suction device 10 of the present invention relating to any of the above-mentioned (1-1) to (1-11), the dust collection box 52 preferably has a bottom lid 62 that can open and close a disposal opening 68 formed in the bottom wall 52f, and the outflow portion 64 is preferably formed in the bottom lid 62.

[0101] By configuring the dust suction device 10 of the present invention as described above in (1-12), the bottom cover 62 for opening and closing the disposal opening of the dust box 52 can be utilized to provide the outflow section 64.

[0102] (1-13) In the dust suction device 10 of the present invention relating to any of (1-1) to (1-12) above, the dust collection box 52 preferably has a bottom lid 62 that can open and close a disposal opening 68 formed in the bottom wall 52f, the bottom lid 62 being rotatably supported on the bottom wall 52f by a pivot shaft 62a, and the pivot shaft 62a being positioned outward from the disposal opening 68 and below the bottom wall 52f.

[0103] By configuring the dust suction device 10 of the present invention as described above (1-13), dust discharged from the disposal opening 68 is less likely to adhere to the pivot shaft 62a that rotatably supports the bottom cover 62 relative to the bottom wall 52f of the dust collection box 52.

[0104] (1-14) In the dust suction device 10 of the present invention relating to any of the above-mentioned (1-1) to (1-13), a filter member 30 for filtering air flowing from the outlet portion 64 toward the electric blower 26 is arranged between the outlet portion 64 and the electric blower 26, and the filter member 30 is preferably spaced apart from the outlet portion 64.

[0105] In the dust suction device 10 of the present invention, when the filter member 30 for filtering air flowing from the outlet 64 toward the electric blower 26 is configured to be in contact with the outlet 64 provided in the dust collection box 52, the portion of the filter member 30 in contact with the outlet 64 is used primarily for filtering the air. Therefore, when the filter member 30 is configured to be in contact with the outlet 64, the portion of the filter member 30 that is not in contact with the outlet 64 is less likely to be used effectively for filtering the air. Based on this finding, it is preferable that the dust suction device 10 of the present invention has the filter member 30 spaced apart from the outlet 64, as described above in (1-14). This allows the dust suction device 10 of the present invention to effectively use most of the filter member 30 for filtering the air.

[0106] (1-15) The dust suction device 10 of the present invention relating to any of (1-1) to (1-14) above may preferably be provided with a filter member 30 between the outlet portion 64 and the electric blower 26, the filter member 30 filtering the air flowing from the outlet portion 64 toward the electric blower 26, and a support portion 28 supporting the filter member 30 so that a gap is formed downstream of the filter member 30 in the air flow direction.

[0107] By configuring the dust suction device 10 of the present invention as described above (1-15), the air resistance of the filter member 30 is minimized while the dust contained in the air flowing out from the outlet portion 64 can be captured by the filter member 30.

[0108] (1-16) In the dust suction device 10 of the present invention according to any one of (1-1) to (1-15) described above, the dust collection box 52 may have a transparent window portion 66 in the top wall 52e or the side wall.

[0109] By configuring the dust suction device 10 of the present invention as described above in (1-16), the amount of dust collected in the dust collection box 52 can be confirmed through the window 66.

[0110] (1-17) In the dust suction device 10 of the present invention relating to any of (1-1) to (1-16) described above, the device body 20 preferably has an external exhaust opening 20j that exhausts the exhaust air of the electric blower 26 to the outside, the exhaust air passes through an exhaust flow path member and is discharged from the external exhaust opening 20j, and the exhaust flow path member preferably has a duct portion 36 (first exhaust flow path member) and an exhaust flow path constituent 32 (second exhaust flow path member) that extends so as to bend relative to the duct portion 36 (first exhaust flow path member).

[0111] By configuring the dust suction device 10 of the present invention as described above in (1-17), it is possible to ensure a sufficient discharge path for the exhaust air from the electric blower 26, thereby improving quietness.

[0112] (1-18) The vacuum cleaner system S of the present invention includes the vacuum cleaner 200 and the dust suction device 10 according to any one of (1-1) to (1-17) above.

[0113] By configuring the vacuum cleaner system S of the present invention as described above (1-18), it is possible to collect dust from the dust collection container 252 of the vacuum cleaner 200 into the dust suction device 10 without using a paper bag.

[0114] [Dust suction device 10 and vacuum cleaner system S according to the second embodiment of the present invention] A dust collection device for collecting dust from a vacuum cleaner has been disclosed in Japanese Patent Laid-Open Publication No. 2023-3875. The document describes a vacuum cleaner system including a vacuum cleaner (1) having a main body (10) with a first electric blower (14) that generates suction and a first dust collecting section (50) that collects dust, and a dust collection device (100) that communicates with the first dust collecting section (50) to collect dust from the vacuum cleaner (1) and includes a second dust collecting section (110) that collects dust and a second electric blower (120) that generates suction.

[0115] However, in the conventional technology described above, if the air drawn into the second electric blower 120 contains dust, it may malfunction, and there is room for improvement.

[0116] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a dust suction device and an electric vacuum cleaner system that can reduce malfunctions of the electric blower.

[0117] (2-1) The dust suction device 10 of the present invention is a dust suction device for recovering dust collected in a dust collection container 252 of an electric vacuum cleaner 200, and is equipped with an electric blower 26 that generates suction force, and a dust collection section 50 that collects the dust sucked out of the dust collection container 252 by the electric blower 26, and is characterized in that when the dust collection container 252 is connected to the dust collection section 50, the electric blower 26 operates so that the dust sucked out of the dust collection container 252 is collected in the dust collection section 50 and air flows from the outlet of the dust collection section 50 into an inlet opening (opening 24f), and a filter member 30 is disposed between the inlet opening and the electric blower 26 to filter the air flowing from the inlet opening toward the electric blower 26.

[0118] By configuring the dust suction device 10 of the present invention as described above in (2-1), dust that could not be captured by the dust collection section 50 can be filtered by the filter member 30, thereby reducing malfunctions of the electric blower.

[0119] The dust suction device 10 of the present invention also includes a case where the dust collection unit 50 is a paper bag type. In the case of a paper bag type, the dust collection unit 50 may be fixed to the device body 20 instead of being detachable.

[0120] (2-2) In the dust suction device 10 of the present invention according to the above (2-1), the filter member 30 is spaced apart from the outlet portion.

[0121] The dust suction device 10 of the present invention, configured as described above in (2-2), can filter air by using a wide area of ​​the filter member 30.

[0122] (2-3) In the dust suction device 10 of the present invention according to (2-1) or (2-2) described above, the filter member 30 is supported between the inlet opening and the electric blower 26.

[0123] The dust suction device 10 of the present invention can stably support the filter member 30 by being configured as described above in (2-3).

[0124] (2-4) The dust suction device 10 of the present invention according to the above (2-1) or (2-2) is characterized in that it has a support portion 28 that supports the filter member 30.

[0125] The dust suction device 10 of the present invention can stably support the filter member 30 by being configured as described above in (2-4).

[0126] (2-5) The dust suction device 10 of the present invention relating to (2-1) or (2-2) described above is characterized in that it has a filter accommodating section (filter placement section 24d) having an inlet opening through which air flows in from the dust collection section 50 and an outlet opening 28e through which air that has entered from the inlet opening is discharged, and has a support member 28d extending from the bottom wall of the filter accommodating section in a direction toward the filter member 30.

[0127] The dust suction device 10 of the present invention can suppress pressure loss in the flow path by being configured as described above in (2-5).

[0128] (2-6) In the dust suction device 10 of the present invention relating to (2-1) or (2-2) described above, the filter accommodating section (filter placement section 24d) has the inlet opening through which air flows in from the dust collection section 50 and the outlet opening through which air that has entered from the inlet opening is discharged, and has a pressing member extending in a direction from the upstream side of the filter member 30 toward the filter member 30.

[0129] The dust suction device 10 of the present invention, configured as described above in (2-6), can filter air by using a wide area of ​​the filter member 30.

[0130] (2-7) The vacuum cleaner system S of the present invention includes the vacuum cleaner 200 and the dust suction device 10 according to any one of (2-1) to (2-6) above.

[0131] The present invention is not limited to the above-described embodiments and modifications, and other embodiments may be possible within the scope of the claims, based on the teachings and spirit of the invention. The components of the above-described embodiments may be arbitrarily selected and combined. Furthermore, any component of the embodiment may be arbitrarily combined with any component described in the Summary of the Invention or any component embodying any component described in the Summary of the Invention. The present invention intends to obtain rights to these as well through amendments to this application or divisional applications, etc. [Industrial Applicability]

[0132] The present invention can be suitably used in dust suction devices and vacuum cleaner systems in general. [Explanation of symbols]

[0133] 10 Dust suction device 20 Device body 20j External exhaust opening 26 Electric blower 28 Support part 30 Filter member 32 Exhaust flow path structure 36 Duct section 50 Dust collection unit 52 Dust collection box 52a First side wall 52b Second side wall 52e Ceiling wall 52f bottom wall 55 Compartment Wall 55a First compartment wall 55b Second compartment wall 56 Dust collection space 57 Filters 57a First filter 57b Second filter 58 Flow path 58a First channel 58b Second flow path 60 Inlet 60a inlet 60b Guide wall 62 Bottom lid 62a Rotating shaft 64 Outlet 66 Window 68 Waste opening 200 vacuum cleaner 250 Dust collector 252 Dust collection container 254 Lid 256 Lock Section 262 Waste outlet S Vacuum Cleaner System

Claims

1. A dust suction device for recovering dust collected in a dust collection container of an electric vacuum cleaner, a device body having an electric blower that generates suction force; a dust collecting unit that collects the dust sucked out of the dust collecting container by the electric blower into a dust collecting box, The dust collection container has a lid that can open and close a disposal opening on the bottom side, When the dust collection container is in an open state and is in communication with the dust collection unit, a suction force of the electric blower acts on the dust collection container, causing dust sucked out of the dust collection container to be collected in the dust collection unit, the dust collection unit has the dust collection box, which has an inlet and an outlet, detachably attached to the device body; A dust suction device, characterized in that air flows into the dust collection box from the inlet portion by suction of the electric blower, and the air in the dust collection box flows out from the outlet portion.

2. The dust suction device according to claim 1, wherein the inlet portion is disposed closer to a top wall of the dust collection box than to a bottom wall of the dust collection box.

3. The dust suction device according to claim 1 , wherein the inlet portion is disposed at a center position between the bottom wall and the top wall of the dust collection box and at a position close to the center position in relation to the position of the top wall.

4. the inflow section has an inflow port through which dust flows in and a guide wall disposed around the inflow port, the dust collection box has a first side wall having the inlet and a second side wall facing the first side wall, The dust suction device according to claim 1 , wherein the air flowing in through the inlet is guided by the guide wall toward the second side wall.

5. 2. The dust suction device according to claim 1, wherein the dust collection box has a filter for filtering air flowing from the inlet to the outlet.

6. The dust collection box is a flow path extending from the filter to the outlet; A dust collection space where dust accumulates, a partition wall that partitions the flow path; The dust suction device according to claim 5, further comprising:

7. the filter includes a first filter and a second filter; The dust collection box is a first flow path extending from the first filter to the outlet; a second flow path extending from the second filter to the outlet; a first partition wall that partitions a dust collection space in which dust accumulates and the first flow path; a second partition wall that partitions the dust collection space and the second flow path; The dust suction device according to claim 5, further comprising:

8. the dust collection box has the first partition wall and the second partition wall facing each other as part of a side wall that defines the dust collection space, 8. The dust suction device according to claim 7, wherein the width of the first partition wall and the second partition wall in the opposing direction decreases toward the bottom wall of the dust collection box.

9. The dust suction device according to claim 7 or 8, wherein the first flow path and the second flow path are arranged symmetrically with respect to the inlet portion.

10. 9. The dust suction device according to claim 7, wherein the first flow path and the second flow path have the same maximum cross-sectional area.

11. The dust collection box has a bottom cover that can open and close a disposal opening formed in a bottom wall, The dust suction device according to claim 1 , wherein the outlet is formed in the bottom cover.

12. The dust collection box has a bottom cover that can open and close a disposal opening formed in a bottom wall, the bottom cover is rotatably supported on the bottom wall by a rotation shaft; 2. The dust suction device according to claim 1, wherein the rotation shaft is located outward from the disposal opening and below the bottom wall.

13. a filter member that filters air flowing from the outlet portion toward the electric blower is disposed between the outlet portion and the electric blower; The dust suction device according to claim 1 , wherein the filter member is spaced apart from the outlet portion.

14. Between the outlet and the electric blower, a filter member that filters air flowing from the outlet portion toward the electric blower; a support portion that supports the filter member so that a gap is formed downstream of the filter member in the air flow direction; The dust suction device according to claim 1 , further comprising:

15. 2. The dust suction device according to claim 1, wherein the dust collection box has a transparent window on a top wall or a side wall.

16. the device body has an external exhaust port for exhausting the exhaust air of the electric blower to the outside, The exhaust air passes through an exhaust flow path member and is discharged from the external exhaust opening, The exhaust flow path member is a first exhaust flow path member; a second exhaust flow path member that extends so as to bend relative to the first exhaust flow path member; The dust suction device according to claim 1 , further comprising:

17. The dust collecting device of the electric vacuum cleaner includes the dust collecting container, the lid, and a locking portion that locks the lid in a state where the disposal opening is closed, 2. The dust suction device according to claim 1, wherein the locking portion can be unlocked when the vacuum cleaner is detached from the dust suction device.

18. A vacuum cleaner system comprising the vacuum cleaner and the dust suction device according to claim 1.

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