JP3133495B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner having a built-in substrate having electronic components.

[0002]

2. Description of the Related Art Conventionally, this type of vacuum cleaner accommodates a board on which electronic components are mounted above an electric blower storage chamber, and forms insertion holes in an upper case and a lower case of the cleaner body. The electronic components are radiated through the radiator plate by the suction of the electric blower by inserting the radiator plate attached to the air blower. However, as shown in FIG. An elastic packing is provided in the insertion hole of the upper case to prevent the suction force from being reduced by flowing into the suction side of the electric blower in the main body.

However, according to this configuration, there are problems that the number of parts increases and that the assembling workability is poor.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide a vacuum cleaner having good assembling workability.

[0005]

According to the present invention, there is provided a cleaner body comprising upper and lower cases, a partition partitioning the interior of the cleaner body into a dust collecting chamber and an electric blower storage chamber, and A packing made of an elastic material interposed therebetween, a control component disposed above the electric blower storage chamber for controlling the output of the electric blower, and a radiator plate attached to the control component; An insertion portion through which the plate is inserted is formed.

Further, the present invention provides a cleaner body having a dust collecting chamber and an electric blower storage chamber for storing an electric blower, a dust collecting cover for opening and closing the upper part of the dust collecting chamber, A packing disposed at an upper surface opening, for airtightly holding the dust collecting chamber upper surface opening and the dust collection lid, a substrate built in the cleaner main body, for controlling an output of the electric blower, and attached to the substrate; A heat radiating plate disposed on the suction side of the electric blower, and an insertion portion through which the heat radiating plate is inserted is integrally formed at a position corresponding to a partition between the dust collecting chamber and the electric blower storage chamber of the packing. It is characterized by the following.

[0007]

According to the structure of the first aspect of the present invention, the packing is sandwiched between the partition and the upper case, and the heat sink is inserted into the insertion portion formed in the packing. Since the insertion portion is formed integrally with the packing, the insertion portion is in close contact with the heat radiating plate to keep the outside air and the inside of the cleaner body airtight.

Further, according to the configuration of claim 2 of the present invention,
In a state where the packing is arranged in the lower case opening, the insertion portion formed in the packing matches the through hole formed in the partition of the lower case, and the heat sink of the substrate is inserted into the through hole and the insertion portion. Since this insertion portion is made of an elastic material like the packing, it is in close contact with the heat radiating plate and keeps the outside air and the inside of the cleaner body airtight.

Also, when the electric blower is driven, if the pressure in the electric blower storage chamber becomes negative, the packing tends to move toward the electric blower storage chamber. However, since the packing is sandwiched between the partition wall and the upper case, the packing is closed. Is prevented, and the inflow of outside air from the insertion portion is prevented.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

Reference numeral 1 denotes a cleaner body, which comprises a lower case 2 and an upper case 3, and a dust collecting chamber 4 for storing a dust collecting bag A in front thereof.
An electric blower storage chamber 6 for storing the electric blower 5 is provided at the rear, and a space between the dust collection chamber 4 and the electric blower storage chamber 6 is provided.
It is partitioned by a partition 7 integrally formed with the lower case 2. 8
Is a through-hole formed in the partition wall 7 so that a heat radiating plate 29 of a substrate 28 described later is inserted and locked.

Numeral 9 denotes a dust collecting cover for opening and closing the upper part of the dust collecting chamber 4 so that the dust collecting cover 9 is opened and the dust collecting bag A is attached and detached.

Reference numeral 10 denotes a suction port formed at the front of the cleaner main body 1 so as to communicate with the dust collecting chamber 4. The opening of the suction port 10 is covered by a shutter 11 so as to be openable and closable. The hose 12 is detachably connected.

Reference numeral 13 denotes an inflow port formed on the side of the suction port 10 so that air from the electric blower storage chamber 6 flows into the suction port 10 through a flow path 14 described later.

Numeral 14 designates a flow passage having a substantially U-shaped cross section formed in the upper portion of the lower case 2 of the cleaner body 1 and comprising a wall 15 of the lower case 2 and a rib 16 erected outside the wall 15. It communicates with the electric blower storage chamber 6 and the inflow port 13 of the suction port 10. Reference numeral 17 denotes a locking groove formed on the upper end surface of the rib 16, and reference numeral 18 denotes a locking groove formed on an upper end surface of a support piece 19 formed at an appropriate number of places on the wall surface 15 of the lower case 2. 1
A cover 21 to be described later is locked to 7, 18.

Reference numeral 20 denotes a reinforcing rib projecting vertically from the inner surface of the lower case 2 so as to prevent the side wall of the lower case 2 from being deformed.

Reference numeral 21 denotes a cover having a substantially U-shaped cross section which covers the upper surface opening of the flow path 14. The rib 16 and the wall surface 15 of the lower case 2 are provided.
The locking pieces 17 and 18 are respectively formed in the supporting pieces 19.

Reference numeral 22 denotes a bumper made of an elastic material, which is a buffer 23 disposed on the outer periphery of the cleaner body 1 so as to cover the side surface of the flow path 14.
And a packing part 24 formed integrally with the buffer part 23 to cover the upper surface of the cover 21 and to keep the lower case 2 and the dust collecting lid 9 airtight. 25 is the buffer
23 When the projection is integrally formed on the inner surface and covers the flow path 14, the projection abuts on the outer surface of the flow path 14, buffers an external impact to the bumper 22, and damages the flow path 14. Is to be prevented.

Reference numeral 26 denotes an insertion portion formed integrally with the packing portion 24 of the bumper 22. The insertion portion 26 is provided at a position corresponding to the through hole 8 of the partition wall 7.
The radiator plate 29 is kept airtight.

Reference numeral 27 denotes a resin frame, which is formed in a substantially L-shaped cross section, and is mounted on the upper end of the lower case 2 over the entire periphery thereof while being integrally attached to the packing portion 24 of the bumper 22. It is to be arranged.

Reference numeral 28 denotes a substrate built in the upper part of the electric blower storage chamber 6 of the cleaner body 1, and by operating a hand switch (not shown) of the bellows hose 12, the electric blower 5 is operated.
And the suction force can be adjusted.

Numeral 29 is integrally attached to the substrate 28,
A heat radiating plate disposed on the suction side of the electric blower 5 prevents overheating of the electronic components mounted on the substrate 28, and the heat radiating plate 29 is provided in a packing portion 24 of the bumper 22. Is inserted into the through-hole 26 formed in the partition wall 7 and the through-hole 8 formed in the partition wall 7, and is kept airtight by the through-hole 26 made of an elastic material.

When assembling, the lower case 2 wall
The cover 21 is attached to the support grooves 19 and the locking grooves 18 and 17 formed above the rib 16, and the cover 21 covers the opening of the flow path 14.

Then, the bumper 22 is integrally attached to the frame 27, the buffer 23 is disposed on the outer surface of the flow path 14, and the packing 24 is disposed above the cover 21. At this time, the projection 25 integrally formed inside the buffer portion 23 of the bumper 22
The dust collecting lid 9 and the lower case 2 are hermetically held by the packing portion 24 arranged at the upper end of the lower case 2 while being in contact with the outer surface to cushion an external impact.

Further, since the bumper 22 having the frame 27 integrally attached thereto is disposed above the cover 21, when an impact is applied from the outside of the flow path 14, the rib 16 is moved to the cleaner body 1.
Lifting of the cover 22 radially inward is restricted, and air leakage is prevented.

Further, with the bumper 22 integrally attached to the frame 27 being disposed in the lower case 2 opening, the bumper 22
The insertion portion 26 formed in the packing portion 24 and the through hole 8 formed in the partition wall 7 of the lower case 2 coincide with each other, and the heat radiating plate 29 of the substrate 28 is inserted into the through hole 8 and the insertion portion 26. This through hole 26
Is made of an elastic material like the packing part 24,
29, and keeps the outside air and the inside of the cleaner body 1 airtight.

When the electric blower 5 is driven, if the pressure in the electric blower storage chamber 6 becomes negative, the insertion portion 26 of the packing section 24 attempts to move toward the electric blower storage chamber 6.
Is sandwiched between the partition wall 7 and the upper case 3, the radius of the packing portion 24 is prevented, and the inflow of outside air from the insertion portion 26 is prevented.

After the cleaning, the bellows hose 12 is removed from the suction port 10 and the shutter 11 is closed.
Micro switch (not shown) provided near 10 is ON
When the electric blower 5 is driven, the air in the cleaner main body 1 circulates in the order of the electric blower storage chamber 6, the flow path 14, the suction port 10, and the dust collecting chamber 4, and the heat of the electric blower 5 causes The air in the main body 1 is gradually heated. And the temperature in the dust collecting chamber 4 is a predetermined temperature (temperature at which pests such as mites die: about 60 ° C.)
, A sensor (not shown) detects the electric blower 5
Stops.

During the above-described pest control, the heated air passes through the flow path 14, so that the rib 16 of the flow path 14 and the wall surface 15 of the lower case 2 are easily deformed by heat. Fifteen
Since the cover 21 is locked in the locking grooves 17, 18 formed in the ribs 16, the lateral deformation of the rib 16 and the wall surface 15 is restricted.

Further, according to the above-described structure, the packing portion 24 of the bumper 22 for sealing the lower case 2 and the upper case 3 is inserted into the vacuum cleaner main body 1 in pressure contact with the heat radiating plate 29 to shut off the outside air. Since the part 26 is integrally formed, the heat radiation plate 29 can be sealed at the same time as the mounting of the bumper 22, so that the number of parts can be reduced and the assembling workability is improved.

[0031]

According to the present invention, since the insertion portion for inserting and engaging the heat sink is formed integrally with the packing, the packing of the heat sink can be arranged at the same time when the packing is mounted, and the number of parts can be reduced. And the workability of assembly can be improved.

When the electric blower is driven, if the pressure of the electric blower storage chamber becomes negative, the packing tends to move toward the electric blower storage room. However, since the packing is sandwiched between the partition wall and the upper case, the packing radius is reduced. Is prevented, the outside air is prevented from flowing from the insertion portion, and the suction force is not reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a vacuum cleaner showing an embodiment of the present invention.

FIG. 2 is a top view of the cleaner body with an upper case removed.

FIG. 3 is an enlarged sectional view of the main part.

FIG. 4 is an exploded perspective view of the main part.

FIG. 5 is a longitudinal sectional view of a main part of the cleaner body.

FIG. 6 is a side view of the cleaner body.

FIG. 7 is an enlarged sectional view of a main part showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Lower case 3 Upper case 4 Dust collection room 6 Electric blower storage room 7 Partition wall 9 Dust collection lid 24 Packing part (packing) 26 Insertion part 28 Substrate 29 Heat sink

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-128735 (JP, A) JP-A-4-200427 (JP, A) JP-A-3-70534 (JP, A) 261433 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47L 9/00 A47L 9/28

Claims (2)

(57) [Claims] 1. A cleaner body comprising upper and lower cases, a partition for partitioning the inside of the cleaner body into a dust collecting chamber and an electric blower storage chamber, and an elastic material sandwiched between the partition and the upper case. And a control component disposed above the electric blower storage chamber for controlling the output of the electric blower, and a radiator plate attached to the control component, and an insertion portion through which the radiator plate is inserted into the packing. An electric vacuum cleaner characterized by being formed. 2. A cleaner main body having a dust collecting chamber and an electric blower storage chamber for storing an electric blower, a dust collecting cover for opening and closing the upper part of the dust collecting chamber, and an upper opening of the dust collecting chamber. A packing for airtightly holding the dust collection chamber upper opening and the dust collection lid, a board built in the cleaner body and controlling the output of the electric blower, and a board attached to the board, A radiating plate disposed on the intake side, wherein at a position corresponding to a partition portion between the dust collecting chamber and the electric blower storage chamber of the packing, an insertion portion through which the radiating plate is inserted is integrally formed. Vacuum cleaner to do.