TW201328650A - Electric vacuum cleaner - Google Patents

Abstract

An electric air blower is incorporated in the lower part of a cleaner body (1) and generates suction air current. A suction tool (2) is mounted below the cleaner body (1). A dust collection section (3) is mounted above the cleaner body (1) and collects dust sucked by the suction air current generated by the electric air blower. A first flow path (26) is provided to the cleaner body (1) and connects the suction tool (2) and the dust collection section (3). A second flow path (27) is provided to the cleaner body (1) and connects the dust collection section (3) and the air suction side of the electric air blower. The second flow path (27) is formed along substantially the entire length of the cleaner body (1) in the longitudinal direction thereof.

Description

Electric vacuum cleaner Field of invention

The present invention relates to an electric vacuum cleaner, and more particularly to a vertical electric vacuum cleaner.

Background of the invention

In the vertical vacuum cleaner, in order to improve the dust collecting performance of the vacuum cleaner, it is proposed to arrange a dust collecting chamber for collecting dust above the electric blower that generates the suction air, so that the electric blower and the dust collecting chamber are directly connected. The configuration (for example, refer to Patent Document 1).

Fig. 9 is a partial cross-sectional view showing a conventional vertical type electric vacuum cleaner. As shown in Fig. 9, the conventional vertical vacuum cleaner 200 is composed of a cleaner body 204 and a floor nozzle (not shown). The cleaner body 204 has an electric blower 201 that generates suction air, and a dust collecting chamber 203 that is disposed above the electric blower 201 and houses a paper bag 202 for collecting dust. The floor nozzle (not shown) has a tubular member 206 that is detachably coupled to a connection port 205 formed below the cleaner body 204. Further, in the conventional vertical vacuum cleaner 200, the dust collecting chamber 203 is communicated with the floor suction nozzle (not shown), and the electric blower 201 is directly in communication with the dust collecting chamber 203, and the suction is generated by the electric blower 201. The wind, the dust being cleaned by the floor is sucked by the floor nozzle (not shown) The paper bag 202 disposed in the dust collecting chamber 203 is captured.

However, in the above-described vertical type electric vacuum cleaner, there is still room for improvement from the viewpoint of improving the silent performance of the electric vacuum cleaner.

That is, in the above-described vertical type electric vacuum cleaner, since the electric blower and the dust collecting chamber are directly connected, the noise generated in the electric blower easily leaks into the dust collecting chamber, and sometimes the noise generated in the electric blower leaks through the dust collecting chamber. To the outside of the vacuum cleaner body.

Advanced technical literature Patent literature

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2001-87172

Summary of invention

The vacuum cleaner of the present invention includes a cleaner body, an electric blower, an inhaler, a dust collecting portion, a first flow path, and a second flow path. The electric blower is disposed inside the vacuum cleaner body to generate suction air. The inhalation device is attached to the lower part of the vacuum cleaner body. The dust collecting portion is attached to the upper portion of the cleaner body and is used to collect dust attracted by the suction wind generated by the electric blower. The first flow path is disposed in the cleaner body and communicates with the suction device and the dust collecting portion. The second flow path is disposed in the cleaner body and communicates with the dust collecting portion and the intake side of the electric blower. The second flow path is formed by including the entire length of the longitudinal direction of the cleaner body.

Thereby, since the air collecting side of the connected dust collecting portion and the electric blower and the second flow path are formed over the entire length of the longitudinal direction of the cleaner body, it is possible to sufficiently prevent the noise generated in the electric blower from leaking to the dust collecting. unit, Moreover, the noise generated in the electric blower can be reduced in the second flow path. Therefore, the noise generated in the electric blower can be sufficiently prevented from leaking to the outside of the cleaner body, and the mute performance of the electric vacuum cleaner can be improved.

1‧‧‧ vacuum cleaner body

1a‧‧‧ connector

2‧‧‧Inhalation

3‧‧‧Dust collection department

4‧‧‧Extension tube

5‧‧‧Hose

6‧‧‧Inhalation body

6a‧‧‧ attracting mouth

7‧‧‧Connecting tube

8‧‧‧Rotary brush

9‧‧‧Dust collection body

9a‧‧‧flow entrance

10‧‧‧ Lower cover

11‧‧‧One filter

12‧‧‧Secondary filter

13‧‧‧Upper cover

13a‧‧‧Exit

14‧‧‧Hands

15‧‧‧Management

16‧‧‧Electric blower

17‧‧‧Electric blower storage room

18‧‧‧Power cord

19‧‧‧Wire reel

20‧‧‧Wire reel storage room

21‧‧‧Extension tube storage

22‧‧‧Inlet

23‧‧‧Extension tube storage unit body

24‧‧‧ Holding Department

25‧‧‧Drainage Department

26‧‧‧1st flow path

27‧‧‧2nd flow path

28‧‧‧Export

29‧‧‧3rd flow path

100‧‧‧ electric vacuum cleaner

201‧‧‧Electric blower

202‧‧‧ paper bags

203‧‧‧dust room

204‧‧ ‧ vacuum cleaner body

205‧‧‧Connecting port

206‧‧‧ Pipe fittings

A, B, C, D‧‧‧ arrow marks

Fig. 1 is a perspective view showing the whole of an electric vacuum cleaner according to a first embodiment of the present invention.

Fig. 2 is a rear perspective view of the electric vacuum cleaner according to the first embodiment of the present invention.

Fig. 3 is a central cross-sectional view of the electric vacuum cleaner in which the extension pipe according to the first embodiment of the present invention is stored.

Fig. 4 is a central cross-sectional view of the electric vacuum cleaner in which the extension pipe according to the first embodiment of the present invention is in use.

Fig. 5 is a rear cross-sectional view showing the vacuum cleaner body of the first flow path and the second flow path in the first embodiment of the present invention.

Fig. 6 is a rear sectional view showing the cleaner body of the third flow path according to the first embodiment of the present invention.

Fig. 7 is a cross-sectional view showing the cleaner body of the third flow path in the first embodiment of the present invention.

Fig. 8 is a cross-sectional view showing the cleaner body of the third flow path according to the second embodiment of the present invention.

Fig. 9 is a partial cross-sectional view showing a conventional vertical type electric vacuum cleaner.

Detailed description of the preferred embodiment

Embodiment 1 of the electric vacuum cleaner of the present invention will be described with reference to Figs. 1 to 7 .

Fig. 1 is a perspective view showing the whole of an electric vacuum cleaner according to a first embodiment of the present invention. Fig. 2 is a rear perspective view of the electric vacuum cleaner according to the first embodiment of the present invention. Fig. 3 is a central cross-sectional view of the electric vacuum cleaner in which the extension pipe according to the first embodiment of the present invention is stored. Fig. 4 is a central cross-sectional view of the electric vacuum cleaner in which the extension pipe according to the first embodiment of the present invention is in use. Fig. 5 is a rear cross-sectional view showing the vacuum cleaner body of the first flow path and the second flow path in the first embodiment of the present invention. Fig. 6 is a rear sectional view showing the cleaner body of the third flow path according to the first embodiment of the present invention. Fig. 7 is a cross-sectional view showing the cleaner body of the third flow path in the first embodiment of the present invention.

As shown in FIGS. 1 to 4, the vacuum cleaner 100 includes a cleaner body 1, a suction tool 2, a dust collecting portion 3, an extension pipe 4, and a hose 5. An electric blower 16 is provided in the cleaner body 1. The suction device 2 is detachably attached to the lower portion of the cleaner body 1. The dust collecting portion 3 is detachably coupled to the upper portion of the cleaner body 1. The extension tube 4 has an opening (not shown) for attracting dust at one end, and is freely expandable or freely connectable. One end of the hose 5 is connected to the other end of the extension pipe 4, and the other end is connected to the connection port 1a formed in the cleaner body 1. Further, the connection port 1a is formed to communicate with a first flow path 26 which will be described later.

The inhalation device 2 is a suction device main body 6 having a suction port 6a on the lower side, and a connection pipe 7 disposed at a central rear portion of the suction device main body 6. One end of the connecting pipe 7 is attached to the suction device body 6 so as to be freely rotatable up and down and left and right, and the other end is detachably attached to the lower portion of the cleaner body 1. Further, inside the suction main body 6, a rotating brush 8 for scraping dust on the surface to be cleaned and a driving means (not shown) for driving the rotating brush 8 are disposed.

The dust collecting portion 3 has a cylindrical dust collecting portion body 9 and a lower cover body. 10. A cylindrical primary filter 11, a secondary filter 12, and an upper cover 13. The dust collecting portion body 9 has an inflow port 9a into which dust flows in, and has openings (not shown) at both ends. The lower cover body 10 can open the opening (not shown) on the lower end side of the dust collecting portion main body 9 in a freely switchable manner. The primary filter 11 is disposed in the dust collecting portion main body 9 and centrifugally separates the dust flowing into the dust collecting portion 3 from the inflow port 9a. The secondary filter 12 is disposed on the downstream side of the primary filter 11, that is, disposed above the primary filter 11, and collects dust passing through the primary filter 11. The upper lid body 13 is disposed above the secondary filter 12, and covers an upper surface of the secondary filter 12 and an opening (not shown) on the upper end side of the dust collecting portion main body 9. Further, on the side of the cleaner body 1 of the upper cover 13, that is, the rear portion of the upper cover 13 is formed with an outlet for exhausting the air separated by the primary filter 11 and the secondary filter 12 to the outside of the dust collecting portion 3. 13a.

The end portion of the extension tube 4 on the side of the hose 5 is formed with a handle portion 14 that is gripped by the user when sweeping. Further, an end portion of the hose 5 on the side of the cleaner body 1 is provided with an L-shaped communication tube 15 detachably connected to the connection port 1a formed on the rear surface of the cleaner body 1. The extension pipe 4 and the hose 5 are connected to the first flow path 26, which will be described later, by connecting the communication pipe 15 and the connection port 1a.

As shown in FIG. 2 to FIG. 6, an electric blower storage chamber 17 in which an electric blower 16 that generates wind is provided is provided in a lower portion of the cleaner body 1. In the storage state of the electric vacuum cleaner 100 (the state shown in FIGS. 1 to 3), the air blower 16 is disposed in the electric blower storage chamber 17 so as to face the lower portion of the cleaner body 1. Further, an electric reel storage chamber 20 is provided above the electric blower storage chamber 17, and an electric wire reel 19 for accommodating the power supply line 18 connected to the commercial power is provided in the electric reel storage chamber 20. Electricity The fan blower storage chamber 17 is in communication with the electric wire reel storage compartment 20. Further, the electric wire reel 19 is disposed in the electric wire reel storage chamber 20 such that the rotation axis of the electric wire reel 19 and the direction of the central axis of the electric blower 16 are in the same direction.

An extension pipe housing portion 21 for accommodating the extension tube 4 is formed at a central portion of the rear portion of the cleaner body 1. The extension pipe accommodating portion 21 is formed by an insertion port 22 formed on the upper surface of the cleaner body 1 and a bottomed extension tube accommodating portion body 23 disposed in the cleaner body 1. Further, the extension pipe accommodating portion 21 is configured to hold the airtightness between the extension pipe 4 and the extension pipe accommodating portion 21 in a state where the extension pipe 4 is housed in the extension pipe accommodating portion 21 so that the outside air does not become self-contained. The opening (not shown) formed at one end of the extension tube 4 is attracted. Further, in the vicinity of the insertion opening 22 of the extension pipe housing portion 21, a holding portion 24 for holding the extension tube 4 in the extension tube housing portion 21 is formed. Further, the holding portion 24 is engaged with the extension tube 4, and the extension tube 4 is detachably held by the cleaner body 1.

A discharge space portion 25 that forms a part of the third flow path 29 to be described later is formed between the outer side of the extension pipe housing portion 21 and the inner side of the cleaner body 1. The discharge space portion 25 is formed to be located above the electric blower storage chamber 17 formed in the lower portion of the cleaner body 1. Further, the discharge space portion 25 communicates with the electric wire reel storage chamber 20, and the discharge space portion 25 and the electric blower storage chamber 17 communicate with each other via the electric wire reel storage chamber 20.

A first flow path 26 including a substantially full length in the longitudinal direction of the cleaner body 1 is formed in a rear portion of the cleaner body 1, and one end of the first flow path 26 communicates with the connection pipe 7 of the suction device 2, and the other end is connected to The inflow port 9a of the dust collecting portion body 9 communicates with each other. Moreover, the vacuum cleaner body 1 is formed with a vacuum cleaner The second flow path 27 formed in the longitudinal direction of the body 1 and the one end of the second flow path 27 communicates with the side of the intake port 16a of the electric blower 16 disposed in the cleaner body 1, and the other end is formed. The outflow port 13a of the lid body 13 is connected to the dust collecting portion 3. The second flow path 27 is configured separately from the cleaner body 1 and disposed outside the cleaner body 1. Further, the first flow path 26 and the second flow path 27 are disposed on the right and left sides of the extension tube housing portion 21 formed at the central portion of the rear portion of the cleaner body 1. Here, in the longitudinal direction of the present embodiment, the vacuum cleaner 100 is in the vertical direction of the vacuum cleaner 100 in the storage state.

A plurality of discharge ports 28 for discharging the exhaust air discharged from the exhaust port 16b of the electric blower 16 to the outside of the cleaner body 1 are provided outside the rear portion of the cleaner body 1. The discharge port 28 is formed above the electric blower storage chamber 17 formed inside the cleaner body 1. Further, the discharge port 28 faces the discharge space portion 25 outside the cleaner body 1, and is formed at a position facing the second flow path 27. Further, a third flow path 29 is formed in the inside of the cleaner body 1, and the third flow path 29 guides the exhaust air discharged from the exhaust port 16b of the electric blower 16 to the discharge port 28 formed in the outer periphery of the cleaner body 1. The third flow path 29 is formed by the electric blower storage chamber 17, the electric wire reel storage chamber 20, and the discharge space portion 25.

Hereinafter, the operation and action of the electric vacuum cleaner 100 configured as described above will be described.

As shown in FIG. 5 and FIG. 6, the extension pipe 4 is connected to the commercial power supply in the state in which it is accommodated in the extension pipe accommodating part 21, and when the operation of the electric vacuum cleaner 100 is started, the electric blower 16 is driven, and the electric blower 16 is driven. Produce a wind of attraction. The suction wind generated by the electric blower 16 passes through the second flow path 27, and the set The dust portion 3, the first flow path 26, and the connection pipe 7 are brought to the suction port 6a of the suction device 2, and the dust on the surface to be cleaned is sucked by the suction port 6a of the suction device 2. As shown by the arrow mark A in FIG. 5 and FIG. 6, the dust sucked by the suction port 6a of the suction device 2 is collected by the inflow 9a formed in the dust collecting portion body 9 through the connecting pipe 7 and the first flow path 26. Internal inflow of Part 3

In the state where the extension pipe 4 is removed from the extension pipe accommodating portion 21, when the power source line 18 is connected to the commercial power and the operation of the electric vacuum cleaner 100 is started, the suction wind generated in the electric blower 16 passes through the second flow path 27 The dust collecting portion 3, the first flow path 26, the communication tube 15, and the hose 5 are formed in an opening (not shown) formed at the front end of the extension tube 4, and are formed in the opening portion at the front end of the extension tube 4. (not shown) attracts the dust on the surface to be cleaned. As shown by the arrow B in FIGS. 5 and 6, the dust sucked by the opening (not shown) formed at the front end of the extension pipe 4 passes through the extension pipe 4, the hose 5, the communication pipe 15, and the first The flow path 26 flows into the dust collecting portion 3 from the inflow port 9a formed in the dust collecting portion main body 9.

In the present embodiment, since the second flow path 27 is formed to cover the entire length of the longitudinal direction of the cleaner body 1, it is possible to sufficiently prevent the noise generated in the electric blower 16 from leaking to the dust collecting portion 3, and The noise generated in the electric blower 16 can be reduced in the second flow path 27. Further, in the present embodiment, since the first flow path 26 is formed to cover the entire length of the longitudinal direction of the cleaner body 1, the noise generated in the electric blower 16 can be reduced in the first flow path 26. Therefore, it is possible to sufficiently prevent the noise generated in the electric blower 16 from leaking to the outside of the cleaner body 1. Thereby, the noise generated in the electric blower 16 can be reduced in the first flow path 26 and the second flow path 27, and the noise generated in the electric blower 16 can be sufficiently prevented from leaking to the outside of the cleaner body 1. Its knot The result is that the silent performance of the vacuum cleaner 100 can be improved.

As shown in FIGS. 5 and 6, the suction air including the dust that has flowed into the dust collecting portion 3 can be centrifugally separated in the primary filter 11, and the separated dust is accumulated in the lower portion of the dust collecting portion 3. The suction air containing the dust passing through the primary filter 11 collects dust in the secondary filter 12, and only the suction air is discharged to the outside of the dust collecting portion 3 by the outlet 13a formed in the lid body 13 of the dust collecting portion 3. As shown by the arrow C in FIG. 5 to FIG. 7, the suction air discharged from the outlet 13a formed in the lid body 13 of the dust collecting portion 3 passes through the second flow path 27 to the intake port 16a of the electric blower 16. Further, the inside of the electric blower 16 flows in, and the exhaust air is discharged from the exhaust port 16b of the electric blower 16.

As shown by the arrow symbol D in FIGS. 5 to 7, the exhaust air discharged from the exhaust port 16b of the electric blower 16 is discharged into the electric blower storage chamber 17, and then passed through the electric blower storage chamber 17, the electric wire reel. The third flow path 29 formed in the storage chamber 20 and the discharge space portion 25 is formed in a plurality of discharge ports 28 formed in the outer periphery of the cleaner body 1, and is discharged from the discharge port 28 to the outside of the cleaner body 1.

At this time, in the present embodiment, the discharge space portion 25 is formed above the electric blower accommodation chamber 17, and the discharge port 28 is formed at a position facing the discharge space portion 25 outside the cleaner body 1. Therefore, it is possible to sufficiently prevent the noise generated in the electric blower 16 from leaking from the discharge port 28 to the outside of the cleaner body 1. In the present embodiment, the electric blower storage chamber 17, the electric coil reel storage chamber 20, and the discharge space portion 25 formed inside the cleaner body 1 are formed to introduce the exhaust air of the electric blower 16 into the discharge port 28. The third flow path 29 can be lowered in the third flow path 29 in the electric blower 16 The noise of birth. Therefore, it is possible to sufficiently prevent the noise generated in the electric blower 16 from leaking to the outside of the cleaner body 1, and the silent performance of the vacuum cleaner 100 can be further improved.

Further, in the present embodiment, since the third flow path 29 is formed by the electric blower storage chamber 17, the electric reel storage chamber 20, and the discharge space portion 25, it is not necessary to form the electric blower 16 by another member. The exhaust air is guided to the flow path of the discharge port 28, which simplifies the configuration of the cleaner body 1. Therefore, the noise generated in the electric blower 16 can be reliably reduced in a simple configuration, and the silent performance of the electric vacuum cleaner 100 can be improved.

Further, in the present embodiment, the electric wire reel storage chamber 20 that houses the electric wire reel 19 is disposed above the electric blower storage chamber 17 in which the electric blower 16 is housed, and the electric blower storage chamber 17 and the electric reel storage chamber 20 are provided. A part of the third flow path 29 that discharges the exhaust air of the electric blower 16 to the outside of the cleaner body 1. Therefore, the electric wire reel 19 is disposed in the third flow path 29. Thereby, the electric wire reel 19 can be used to sound the noise generated by the electric blower 16, and the noise generated by the electric blower 16 can be sufficiently prevented from leaking to the outside of the cleaner body 1. Therefore, the noise generated in the electric blower 16 can be sufficiently prevented from leaking to the outside of the cleaner body 1, and the silent performance of the electric vacuum cleaner 100 can be further improved.

Further, in the present embodiment, the discharge port 28 for discharging the exhaust air discharged from the electric blower 16 to the outside of the cleaner body 1 is formed at a position opposed to the extension pipe housing portion 21 of the cleaner body 1, and is formed. The position is opposite to the second flow path 27. Therefore, even if the noise generated by the electric blower 16 leaks from the discharge port 28 to the outside of the cleaner body 1, the second flow can be performed. The road 27 will be noise-insulated by the discharge port 28 to the outside of the cleaner body 1. Therefore, the noise generated in the electric blower 16 can be sufficiently prevented from leaking to the outside of the cleaner body 1, and the silent performance of the electric vacuum cleaner 100 can be further improved.

(Embodiment 2)

Embodiment 2 of the electric vacuum cleaner of the present invention will be described with reference to Fig. 8 . It is to be noted that the same components as those in the first embodiment are denoted by the same reference numerals, and their description will be omitted.

Fig. 8 is a cross-sectional view showing the cleaner body of the third flow path according to the second embodiment of the present invention.

As shown in FIG. 8, in the electric vacuum cleaner 101 of this embodiment, the 2nd flow path 27 is formed in the inside of the cleaner body 1. Further, the third flow path 30 is a space formed between the electric blower storage chamber 17, the electric wire reel storage chamber 20, the discharge space portion 25, and the outside of the second flow path 27 and the inside of the cleaner body 1. Figure) is formed. Further, the discharge port 28 is located above the electric blower storage chamber 17, and is formed outside the cleaner body 1 opposed to the second flow path 27. Further, as indicated by an arrow symbol D in Fig. 8, the exhaust air is exhausted by the exhaust port 28.

According to this configuration, since the length of the third air passage 30 that guides the exhaust air discharged from the electric blower 16 to the discharge port 28 can be lengthened, the noise generated in the electric blower 16 can be further reduced, and the noise can be sufficiently prevented. The noise generated by the electric blower 16 leaks to the outside of the cleaner body 1, and at the same time, the mute performance of the electric vacuum cleaner 101 is further improved.

The above is the power of the first embodiment and the second embodiment of the present invention. The vacuum cleaner is described, but the electric vacuum cleaner of the present invention is not limited to the electric vacuum cleaners of the first embodiment and the second embodiment described above.

For example, in the first embodiment and the second embodiment of the present invention, the configuration in which the discharge port 28 is formed outside the cleaner body 1 facing the discharge space portion 25 or the second flow path 27 will be described. However, the discharge port 28 may be formed above the electric blower storage chamber 17 for accommodating the electric blower 16, and may be connected to the electric blower storage chamber 17 via the third flow paths 29 and 30, and may be formed in the electric wire coil. The disk storage chamber 20 or the vicinity of the first flow path 26 may be formed in the front portion or the side portion of the cleaner body 1. According to this configuration, the length of the third flow paths 29 and 30 that guide the exhaust air of the electric blower 16 to the outside of the cleaner body 1 can be lengthened, and the noise generated in the electric blower 16 can be sufficiently prevented from leaking from the discharge port 28 Up to the outside of the cleaner body 1, the noise generated in the electric blower 16 can be reduced in the third flow paths 29, 30. Therefore, the noise generated in the electric blower 16 can be more sufficiently prevented from leaking to the outside of the cleaner body 1, and the silent performance of the electric vacuum cleaner can be further improved.

Further, in the first and second embodiments of the present invention, the dust collecting unit 3 is configured as a circulating dust collecting device, but the dust collecting portion 3 may be provided with a dust collecting bag for collecting dust. The dust collecting chamber of the dust bag is composed of. In this configuration, the same configuration as in the first embodiment and the second embodiment of the present invention can be employed, and the noise generated in the electric blower can be sufficiently prevented from leaking from the discharge port to the outside of the cleaner body, and the above-described prevention can be more sufficiently prevented. The noise generated by the electric blower leaks to the outside of the vacuum cleaner body and can improve the quiet performance of the electric vacuum cleaner.

As described above, the electric vacuum cleaner of the present invention includes a cleaner body, an electric blower, an inhaler, a dust collecting portion, a first flow path, and a second flow path. The electric blower is disposed inside the vacuum cleaner body to generate suction air. The inhalation device is mounted on the lower portion of the vacuum cleaner body. The dust collecting portion is attached to the upper portion of the cleaner body, and collects dust attracted by the suction wind generated by the electric blower. The first flow path is provided to the cleaner body and communicates with the suction device and the dust collecting portion. The second flow path is disposed in the cleaner body and communicates the dust collecting portion and the intake side of the electric blower. The second flow path is formed by including a substantially full length of the longitudinal direction of the cleaner body.

In this way, since the second flow path on the intake side of the connected dust collecting portion and the electric blower is formed to cover the entire length of the longitudinal direction of the cleaner body, the noise generated in the electric blower can be sufficiently prevented from leaking to the dust collecting portion. And the noise generated in the electric blower can be reduced in the second flow path. Therefore, the noise generated in the electric blower can be sufficiently prevented from leaking to the outside of the cleaner body, and the mute performance of the electric vacuum cleaner can be improved.

Moreover, in the vacuum cleaner of the present invention, a discharge port for discharging the exhaust air discharged from the electric blower to the outside of the cleaner body is formed in the cleaner body. The discharge port is formed above the electric blower. A third flow path for guiding the exhaust air discharged from the electric blower to the discharge port is formed inside the cleaner body.

Thereby, the discharge port is formed above the electric blower, and a third flow path for guiding the exhaust air of the electric blower to the discharge port is formed, so that the noise generated by the electric blower can be sufficiently prevented from leaking from the discharge port to the cleaner body. External, and can be reduced in the third flow path in the electric blower The noise. Therefore, the noise generated by the electric blower can be sufficiently prevented from leaking to the outside of the cleaner body, and the silent performance of the electric vacuum cleaner can be further improved.

Further, in the electric vacuum cleaner of the present invention, an electric wire reel for accommodating a power supply line connected to the commercial power is disposed between the electric blower and the dust collecting portion, and the electric wire reel is disposed in the third flow path.

Thereby, since the electric wire reel is disposed in the third flow path, the noise generated by the electric blower can be shielded from the electric wire reel, and the noise generated by the electric blower can be sufficiently prevented from leaking to the outside of the cleaner body. Therefore, the noise generated by the electric blower can be more fully prevented from leaking to the outside of the cleaner body, and the silent performance of the electric vacuum cleaner can be further improved.

Further, the electric vacuum cleaner of the present invention further includes an extension pipe and an extension pipe storage portion. The extension tube has an opening at one end for attracting dust. The extension pipe accommodating portion is formed at a central portion of the rear portion of the cleaner body and houses the extension tube. The first flow path and the second flow path are respectively disposed on the right and left sides of the extension tube accommodation portion. The second flow path is disposed outside the cleaner body. The third flow path is formed between the outer side of the extension pipe housing portion and the inner side of the cleaner body. The discharge port is formed at a position opposed to the extension pipe housing portion of the cleaner body, and is formed at a position facing the second flow path.

Thereby, since the length of the third flow path for guiding the exhaust air discharged from the electric blower to the discharge port can be lengthened, the noise generated in the electric blower can be further reduced. Moreover, since the discharge port for discharging the exhaust air discharged from the electric blower to the outside of the cleaner body is located at the cleaner body Since the position of the extension pipe accommodating portion is opposed to the position facing the second flow path, even if the noise generated by the electric blower leaks to the outside of the cleaner body through the discharge port, the second flow path can be shielded by the second flow path. The noise from the discharge port leaking to the outside of the vacuum cleaner body. Therefore, the noise generated by the electric blower can be sufficiently prevented from leaking to the outside of the cleaner body, and the mute performance of the electric vacuum cleaner can be further improved.

Further, in the electric vacuum cleaner of the present invention, the second flow path is formed inside the cleaner body. The third flow path is formed between the outer side of the second flow path and the inner side of the cleaner body. The discharge port is formed at a position facing the second flow path of the cleaner body.

Thereby, the length of the third flow path guided to the discharge port by the exhaust air discharged from the electric blower can be lengthened, so that the noise generated in the electric blower can be further reduced. Therefore, the noise generated in the electric blower can be sufficiently prevented from leaking to the outside of the cleaner body, and the silent performance of the electric vacuum cleaner can be further improved.

Further, in the electric vacuum cleaner of the present invention, the first flow path is formed to include a substantially full length of the longitudinal direction of the cleaner body.

In this way, since the first flow path and the second flow path are formed to cover the entire length of the longitudinal direction of the cleaner body, the noise generated in the electric blower can be reduced in the first flow path and the second flow path. Therefore, the noise generated in the electric blower can be sufficiently prevented from leaking to the outside of the cleaner body, and the silent performance of the electric vacuum cleaner can be further improved.

As described above, the electric vacuum cleaner of the present invention can sufficiently prevent the noise generated in the electric blower from leaking to the outside of the cleaner body, and It can improve the quiet performance of electric vacuum cleaners, so it should be suitable for the field and use of household electric vacuum cleaners and industrial vacuum cleaners.

1‧‧‧ vacuum cleaner body

1a‧‧‧ connector

2‧‧‧Inhalation

3‧‧‧Dust collection department

4‧‧‧Extension tube

5‧‧‧Hose

6‧‧‧Inhalation body

7‧‧‧Connecting tube

9‧‧‧Dust collection body

13a‧‧‧Exit

14‧‧‧Hands

21‧‧‧Extension tube storage

26‧‧‧1st flow path

27‧‧‧2nd flow path

28‧‧‧Export

100‧‧‧ electric vacuum cleaner

Claims (6)

An electric vacuum cleaner comprising: a vacuum cleaner body; an electric blower disposed inside the vacuum cleaner body for generating a suction wind; the suction device being installed at a lower portion of the vacuum cleaner body; and a dust collecting portion mounted on the vacuum cleaner a top portion of the body for collecting dust attracted by the suction wind generated by the electric blower; the first flow path being disposed in the cleaner body and communicating the suction device and the dust collecting portion; and the second flow path And being disposed in the cleaner body and communicating the dust collecting portion and the air suction side of the electric blower, wherein the second flow path is formed to include a substantially full length of the longitudinal direction of the cleaner body. The electric vacuum cleaner of claim 1, wherein the vacuum cleaner body forms a discharge port for exhausting the exhaust air discharged from the electric blower to the outside of the cleaner body, and the discharge port is formed in the electric motor Above the blower, the cleaner body is formed with a third flow path for guiding the exhaust air discharged from the electric blower to the discharge port. The electric vacuum cleaner of claim 2, wherein a wire reel for accommodating a power cord connected to a commercial power is disposed between the electric blower and the dust collecting portion, and the wire coil is The disk system is disposed in the third flow path. An electric vacuum cleaner according to the second or third aspect of the invention, further comprising: an extension pipe having an opening for attracting dust at one end; and an extension pipe storage portion formed at a central portion of the rear portion of the cleaner body and accommodating the extension pipe The first flow path and the second flow path are respectively disposed on the left and right sides of the extension pipe storage portion, and the second flow path is disposed outside the vacuum cleaner body, and the third flow path is formed in the extension pipe storage portion. Between the outer side and the inner side of the cleaner body, the discharge port is formed at a position opposed to the extension pipe accommodating portion of the cleaner body and formed at a position facing the second flow path. The electric vacuum cleaner of claim 2, wherein the second flow path is formed inside the cleaner body, and the third flow path is formed between the outer side of the second flow path and the inner side of the cleaner body The discharge port is formed at a position facing the second flow path of the cleaner body. The electric vacuum cleaner of claim 1, wherein the first flow path is formed by including a longitudinal length of the vacuum cleaner body in a longitudinal direction.