JP2013202095A - Electric vacuum cleaner - Google Patents

Abstract

A vacuum cleaner capable of easily connecting a power cord and an electric blower with a connector while easily closing an opening for guiding the connector into a case.
A vacuum cleaner (1) includes a main body case (15) defining an electric blower chamber (13), an electric blower (16) accommodated in the electric blower chamber (13), and an electric fan extending from the outside of the main body case (15) into the electric blower chamber (13). The power cord 18 that supplies power to the blower 16, the connector 32 that electrically connects the electric blower 16 and the power cord 18 in the electric blower chamber 13, and the electric blower 16 from the electric blower chamber 13 to the outside of the main body case 15. An exhaust port 33 for discharging exhaust gas, a side wall portion 23 of the main body case 15 having a power supply port 35 through which the connector 32 and the power cord 18 can be taken in and out from the outside of the main body case 15 into the electric blower chamber 13, and the electric blower chamber 13 are provided. The electric blower 16 is held while the air intake side and the exhaust side of the electric blower 16 are airtightly separated, and the power cord 18 is connected to the power supply port 35. The placement portion includes an electric blower holding portion 17 that closes hermetically, the.
[Selection] Figure 2

Description

  Embodiments according to the present invention relate to a vacuum cleaner.

  Conventionally, a cylindrical large-sized dust collection case arranged in the lower half and an electric blower that sucks air in the dust collection case while covering the top of the dust collection case like a lid and accommodates negative pressure are accommodated. There is known a vacuum cleaner including a blower case. This type of vacuum cleaner is used exclusively for business use or shop use.

  This type of vacuum cleaner includes a power cord that supplies power to the electric blower in the dust collection case. This power cord extends through the wall of the blower case into and out of the blower case, and is electrically connected to the electric blower within the blower case.

Japanese Patent Laid-Open No. 1-297031

  Conventional vacuum cleaners used exclusively for business or store use electric power blowers in a way that requires appropriate skills and tools for reconnection, such as crimping and soldering, to the end of the power cord in the blower case. I was connected. Therefore, in order to improve assemblability before product shipment and maintainability after product shipment, it is conceivable to electrically connect the power cord and the electric blower with a connector.

  By the way, when connecting a power cord and an electric blower with a connector, it is preferable from a viewpoint of safety or aesthetics to arrange a connection location in a blower case.

  If it does so, on the other hand, the opening of the magnitude | size which can let a connector pass through a fan case will be needed. On the other hand, after the connector reaches the blower case, the power cord extends through the opening into and out of the blower case. A relatively large gap is separated between the opening and the power cord.

  The blower case has an exhaust port that blows out the exhaust of the electric blower to the outside of the electric blower chamber, but this gap becomes an unintended path through which the exhaust of the electric blower flows.

  Therefore, the present invention proposes a vacuum cleaner that allows a power cord and an electric blower to be connected with a connector while easily closing an opening that leads the connector into the case.

  In order to solve the above problems, an electric vacuum cleaner according to an embodiment of the present invention includes a case that partitions an electric blower chamber, an electric blower that is accommodated in the electric blower chamber, and extends from outside the case into the electric blower chamber. A power cord for supplying electric power to the electric blower, a connector for electrically connecting the electric blower and the power cord in the electric blower chamber, and discharging the exhaust of the electric blower from the electric blower chamber to the outside of the case An exhaust port, a wall portion of the case having a power supply port through which the connector and the power cord can be taken in and out of the electric blower chamber from outside the case, an intake side and an exhaust side of the electric blower provided in the electric blower chamber The air blower that holds the electric blower in an airtight manner and airtightly closes the non-arranged portion of the power cord in the power supply port. A holding portion, characterized in that it comprises a.

The perspective view which shows the external appearance of the vacuum cleaner which concerns on embodiment of this invention. Sectional drawing which shows the upper half part of the vacuum cleaner which concerns on embodiment of this invention. The perspective view which shows the air blower case of the vacuum cleaner which concerns on embodiment of this invention. The perspective view which shows the air blower case of the vacuum cleaner which concerns on embodiment of this invention. The perspective view which shows the power supply port of the vacuum cleaner which concerns on embodiment of this invention. The perspective view which shows the power supply port and electric blower holding | maintenance part of the vacuum cleaner which concern on embodiment of this invention.

  An embodiment of a vacuum cleaner according to the present invention will be described with reference to FIGS. 1 to 6.

  FIG. 1 is a perspective view showing an external appearance of a vacuum cleaner according to an embodiment of the present invention.

  As shown in FIG. 1, the vacuum cleaner 1 which concerns on this embodiment is a business-use or shop-use vacuum cleaner used for the cleaning of a building, for example. The vacuum cleaner 1 includes a cleaner body 2 that can move on the surface to be cleaned, a dust collecting hose 3, an extension pipe 4, and a suction port body 5.

  The vacuum cleaner main body 2 occupies the lower half near the surface to be cleaned and divides the dust collection chamber 11, and a main body case 15 that is placed on the top of the dust collection case 12 and divides the electric blower chamber 13. An electric blower 16 accommodated in the electric blower chamber 13, an electric blower holding part 17 for holding the electric blower 16 in the electric blower chamber 13, a power cord 18 for supplying electric power to the electric blower 16, and dust collection A filter unit 19 that separates the chamber 11 and the electric blower chamber 13 and a plurality of casters 21 that are provided at the bottom of the dust collecting case 12 and support the cleaner body 2 are provided.

  The dust collection case 12 is a bowl-shaped container that opens upward. The dust collection case 12 includes a clamp 22 that fixes the main body case 15.

  The main body case 15 occupies the upper half of the cleaner body 2 by closing the top opening of the dust collecting case 12. The main body case 15 has a cylindrical side wall portion 23 (wall portion) that defines a cylindrical electric blower chamber 13 having a smaller diameter than the dust collection case 12 and a dust collection case that extends in a bowl shape from the lower end portion of the side wall portion 23. 12 is provided with a flange portion 25 that closes the top of 12 and a disk-shaped top plate 26 that closes the top of the side wall portion 23. The main body case 15 has a reel-like appearance by the side wall portion 23, the flange portion 25, and the top plate 26, and the dust collecting hose 3 can be wound around the main body case 15.

  Further, the main body case 15 includes a switch 27 that can switch between energization and interruption of power supply to the electric blower 16.

  The electric blower 16 has the intake port directed toward the dust collection chamber 11, that is, downward. The electric blower 16 evacuates the dust collection chamber 11 to generate a suction negative pressure.

  The power cord 18 includes a power plug 28 at its free end.

  The filter unit 19 includes air containing dust that flows into the dust collection chamber from the surface to be cleaned through the suction port body 5, the extension pipe 4, and the dust collection hose 3 in order by the negative pressure generated by the electric blower 16 (hereinafter referred to as “includes”). The dust is separated from the dust air and left in the dust collecting chamber 11. Note that clean air from which dust has been removed passes through the filter unit 19 and flows into the electric blower 16.

  The dust collection hose 3 is a long and flexible substantially cylindrical hose. One end portion (here, the rear end portion) of the dust collection hose 3 includes a joint 29 that is mechanically connected to the flange portion 25 of the main body case 15. The dust collection hose 3 is fluidly connected to the dust collection chamber 11.

  The extension tube 4 is an elongated and substantially cylindrical tube that can be expanded and contracted. The extension pipe 4 has a structure in which a plurality of cylindrical bodies are fitted and joined at their respective ends. One end portion (here, the rear end portion) of the extension pipe 4 is detachably and fluidly connected to the other end portion (here, the front end portion) of the dust collecting hose 3. The extension pipe 4 is fluidly connected to the dust collection chamber 11 via the dust collection hose 3.

  The suction port body 5 is detachably and fluidly connected to the other end portion (here, the front end portion) of the extension pipe 4. The suction port body 5 has a structure that can run or slide on a surface to be cleaned such as a wooden floor or a carpet, and has a suction port 31 on the bottom surface that faces the surface to be cleaned in a running state or a sliding state.

  The electric vacuum cleaner 1 starts the operation of the electric blower 16 when the switch 27 is turned on. The electric blower 16 that has started operation exhausts air from the inside of the dust collecting chamber 11 to make it a negative pressure (suction negative pressure).

  The negative pressure inside the dust collection chamber 11 acts on the suction port 31 of the suction port body 5 through the dust collection hose 3 and the extension pipe 4. The vacuum cleaner 1 cleans the surface to be cleaned by sucking in dust from the suction port 31 together with air from the suction port 31 with negative pressure acting on the suction port 31. The filter unit 19 separates dust from the dust-containing air sucked into the vacuum cleaner 1. The dust collection chamber 11 collects and accumulates the separated dust. The air that has been separated and cleaned from the dust-containing air passes through the filter unit 19 and the electric blower 16 and is exhausted outside the cleaner body 2.

  FIG. 2 is a cross-sectional view showing the upper half of the vacuum cleaner according to the embodiment of the present invention.

  As shown in FIG. 2, the vacuum cleaner 1 according to this embodiment includes a power cord 18 that extends from the outside of the main body case 15 into the electric blower chamber 13 and supplies electric power to the electric blower 16, and the electric blower chamber 13. A connector 32 for electrically connecting the electric blower 16 and the power cord 18, an exhaust port 33 for discharging the exhaust of the electric blower 16 from the electric blower chamber 13 to the outside of the main body case 15, and the inside of the electric blower chamber 13 from the outside of the main body case 15 The side wall portion 23 of the main body case 15 having the power supply port 35 through which the connector 32 and the power cord 18 can be taken in and out, and the intake side and the exhaust side of the electric blower 16 provided in the electric blower chamber 13 are hermetically partitioned. While holding the electric blower 16, the electric blower holding part 17 which airtightly blocks the non-arranged portion of the power cord 18 in the power supply port 35, and the second electric blower holding part 36 , Comprising a.

  Further, the vacuum cleaner 1 includes a lid portion 37 that covers the power supply port 35 from the outside of the main body case 15 to adjust the appearance.

  The power cord 18 includes a power plug 28 at an end exposed outside the main body case 15, and a connector 32, more specifically, a plug or jack of the connector 32, at an end accommodated in the main body case 15.

  The electric blower 16 includes a fan unit 39 that houses a centrifugal fan (not shown), and a motor unit 41 that drives the centrifugal fan. The fan unit 39 has a flat cylindrical shape or a disk shape, and the motor unit 41 has a cylindrical shape smaller in diameter than the fan unit 39. The fan unit 39 has an air inlet 42. The motor unit 41 includes a motor head unit 43 at the top and an exhaust port 44. The motor head portion 43 holds a bearing (not shown) that supports a centrifugal fan and a shaft (not shown) extending over the motor portion 41.

  The connector 32 includes a plug on one side of the power cord 18 and the electric blower 16 and a jack on either side.

  The connector 32 is larger than the diameter of the power cord 18. That is, there are cases where it is difficult to pass the connector 32 even if the power cord 18 is an opening through which the power cord 18 can pass.

  Therefore, the power supply port 35 opens to a size that allows the power cord 18 and the connector 32 to pass through.

  The material of the electric blower holding part 17 is a material such as rubber that can achieve both elasticity and airtightness. The electric blower holding part 17 supports the electric blower 16 from below. The electric blower holding part 17 covers a part of the side surface of the fan part 39 over the entire circumference, and contacts the side wall part 23 of the main body case 15, that is, a part of the inner surface of the electric blower chamber 13 over the whole circumference. Thus, the air tightness between the intake side and the exhaust side of the electric blower 16, that is, the air tightness between the electric blower chamber 13 side and the dust collecting chamber 11 side is maintained.

  The second electric blower holding part 36 is sandwiched between the main body case 15 and the motor head part 43 of the electric blower 16 and holds the motor part 41 side. The second electric blower holding part 36 restricts the swing of the motor part 41 and suppresses the vibration of the electric blower 16.

  The switch 27 is interposed between the connector 32 and the electric blower 16.

  The lid portion 37 has a power cord holding port 45 through which the power cord 18 is inserted. The lid portion 37 also protrudes from the outer surface of the side wall portion 23 of the main body case 15 and serves also as a cord hook on which the power cord 18 can be wound.

  3 and 4 are perspective views showing a blower case of the vacuum cleaner according to the embodiment of the present invention.

  FIG. 5 is a perspective view showing a power supply port of the vacuum cleaner according to the embodiment of the present invention.

  As shown in FIG. 3 to FIG. 5, the power supply port 35 of the vacuum cleaner 1 according to the present embodiment is for a connector that allows the connector 32 to be taken in and out of the electric blower chamber 13 and becomes a non-arranged portion of the power cord 18. It has an opening portion 46 and a power cord opening portion 47 in which the power cord 18 is arranged smaller than the connector opening portion 46.

  The connector opening 46 has an opening shape through which only the power cord 18 can pass, specifically an arcuate opening shape.

  On the other hand, the power cord opening 47 has an opening shape, specifically a rectangular shape, through which the plug or jack of the connector 32 provided at the end of the power cord 18 can be taken in and out of the main body case 15. Further, the power cord opening 47 can also take in and out the power cord 18.

  The connector opening portion 46 and the power cord opening portion 47 straddle the step portion of the side wall portion 23 of the main body case 15. Specifically, the connector opening portion 46 is disposed on the side having a smaller inner diameter, and the power cord opening portion 47 is disposed on the side having a larger inner diameter. Depending on the arrangement relationship between the connector opening 46 and the power cord opening 47, the power cord 18 and the connector 32 are drawn into the main body case 15 (that is, the electric blower chamber 13), and then the electric blower holding portion 17 is moved to the main case 15. It becomes easy to arrange in. The arrangement relationship between the connector opening portion 46 and the power cord opening portion 47 is not limited to this, and the relationship of the inner diameters may be reversed, or may be adjacent to the inner peripheral surface of the same inner diameter.

  In the vacuum cleaner 1 having such a configuration, the power cord 18 and the connector 32 can be easily put in and out of the main body case 15. For example, the power cord 18 can be easily taken out from the main body case 15 by releasing the fitting of the connector 32 during the assembly process of the vacuum cleaner 1 or maintenance and repair after product shipment. The connector 32 and the power cord 18 can be fed and the connector 32 can be fitted to complete the product or complete the repair.

  If the power cord 18 is simply fed into the main body case 15, the connector opening 46 is larger than the diameter of the power cord 18, so that a large gap is formed separating the power cord 18 and the power outlet 35. .

  Therefore, the vacuum cleaner 1 according to this embodiment closes the connector opening 46 with the electric blower holding portion 17.

  FIG. 6 is a perspective view showing a power outlet and an electric blower holding part of the vacuum cleaner according to the embodiment of the present invention.

  As shown in FIG. 6, the electric blower holding part 17 of the electric vacuum cleaner 1 according to the present embodiment is fitted into the inner periphery of the side wall part 23 of the main body case 15, and the connector opening part 46 of the power supply port 35 is hermetically sealed. Close up.

  The power supply port 35 in which the connector opening 46 is blocked by the electric blower holding portion 17 is in a state where the power supply cord 18 is inserted into the arch-shaped power cord opening 47.

  At this time, the power cord opening 47 is closed by the power cord 18, and there is almost no gap separating them. That is, there is almost no outflow of exhaust gas from the power supply port 35.

  On the other hand, the exhaust from the electric blower 16 is discharged out of the main body case 15 through the exhaust port 33 of the main body case 15 with a smaller pressure loss.

  The vacuum cleaner 1 according to the present embodiment can connect the power cord 18 and the electric blower 16 so as to be reconnectable via the connector 32, and the connector 32 (that is, the power cord 18 and the electric blower 16 via the power port 35. Can be disposed in the main body case 15, and the power supply port 35 is partially closed by the electric blower holding portion 17, so that the gap between the power supply port 35 and the power cord 18 is almost eliminated. Unintentional exhaust of the blower 16 is prevented from being exhausted from the gap between the power supply port 35 and the power cord 18.

  Further, the vacuum cleaner 1 according to the present embodiment divides the power supply port 35 into the connector opening portion 46 and the power supply cord opening portion 47, thereby reliably reducing the gap between the power supply cord 18 and the power supply port 35. The outflow path of the exhaust air from the blower 16 can be reliably blocked. This ensures that the outflow path is blocked regardless of the ability of the operator in the assembly process and maintenance of the vacuum cleaner 1.

  Furthermore, since the vacuum cleaner 1 according to the present embodiment includes the lid portion 37 that covers the power supply port 35, the electric blower holding unit 17 is exposed from a part of the power supply port 35 (that is, the connector opening portion 46). Without having to do it, you can adjust the appearance.

  Furthermore, the vacuum cleaner 1 according to the present embodiment can also use the lid portion 37 as a cord hook so that the power cord 18 can be gathered in the vicinity of the power outlet 35 when not in use. There is a low risk that the power cord 18 unnecessarily spreads or becomes entangled in the state, and as a result, the power cord 18 is caught on something and damaged.

  Therefore, according to the vacuum cleaner 1 according to the present embodiment, the power cord 18 and the electric blower 16 can be connected by the connector 32, while the power supply port 35 that guides the connector 32 into the main body case 15 is easily blocked. be able to.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 2 Vacuum cleaner main body 3 Dust collection hose 4 Extension pipe 5 Suction port body 11 Dust collection chamber 12 Dust collection case 13 Electric blower chamber 15 Main body case 16 Electric blower 17 Electric blower holding part 18 Power supply cord 19 Filter part 21 Caster 22 Clamp 23 Side wall portion 25 Flange portion 26 Top plate 27 Switch 28 Power plug 29 Joint 31 Suction port 32 Connector 33 Exhaust port 35 Power port 36 Second electric blower holding unit 37 Cover unit 39 Fan unit 41 Motor unit 42 Inlet port 43 Motor Head portion 44 Exhaust port 45 Power cord holding port 46 Connector opening 47 Power cord opening

Claims (5)

A case for partitioning the electric blower chamber;
An electric blower housed in the electric blower chamber;
A power cord that extends from outside the case into the electric blower chamber and supplies electric power to the electric blower;
A connector for electrically connecting the electric blower and a power cord in the electric blower chamber;
An exhaust port for discharging the exhaust of the electric blower from the electric blower chamber to the outside of the case, a wall portion of the case having a power supply port through which the connector and the power cord can be taken in and out of the electric blower chamber from the outside of the case;
An electric blower that is provided in the electric blower chamber and holds the electric blower while hermetically dividing an intake side and an exhaust side of the electric blower and airtightly closes a non-arranged portion of the power cord in the power supply port And a holding part. The power supply port includes a connector opening portion through which the connector can be inserted and removed and is a non-arranged portion of the power cord, and a power cord opening portion in which the power cord is disposed smaller than the connector opening portion. The electric vacuum cleaner according to claim 1, wherein the electric vacuum cleaner is provided. The vacuum cleaner according to claim 1 or 2, wherein the connector is larger than the diameter of the power cord. The vacuum cleaner according to any one of claims 1 to 3, further comprising a lid portion that covers the power supply port from the outside of the case to adjust an appearance. 5. The electric vacuum cleaner according to claim 1, wherein the lid portion also functions as a cord hook that protrudes from an outer surface of the wall portion and can wind the power cord.

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