JPH02128733A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To enlarge the effective area of a filter and prevent suction capacity from being lowered by setting a salient section to which the discharged air of a motor fan is butted, on the side passage side wall surface of a rear passage, and by supporting the discharged air filter body with the salient section on the rear passage, to contain the filter body removably. CONSTITUTION:A salient section 36 is saliently formed on the side of a rear passage 35, on the block wall 11 of the side passage 34 side wall surface of the rear passage 35. Discharged air filter body 37 is fitted so that a filter surface 37a may be directed to the side passage 34 side within the rear passage 35, and is fitted to be inclined so that a fitting angle alpha to the axial direction A of a motor fan 7 may be made larger than 90 deg.C. Air discharged from the discharge air section 32 of the motor fan 7 enters the rear passage 35 from the side passage 34, and is guided to the salient section 36, and the direction of its flow is changed to be directed to the center of the filter surface 37a of the discharged air filter 37, and fine dust butted to the whole discharged air filter surface 37a and included in discharged air is arrested by the whole filter surface 37a.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Public Funds The present invention relates to a vacuum cleaner in which an exhaust filter body is detachably housed in an exhaust passage of an electric blower.

(b) Conventional technology A vacuum cleaner of this type is equipped with an exhaust passage for an electric blower and an exhaust filter is housed in the exhaust passage, as shown in, for example, Japanese Utility Model Application Publication No. 57-118043. The exhaust gas passing through the passage passes through the exhaust filter from one side of the exhaust filter surface, and there is a drawback that the exhaust gas does not pass through the entire surface of the exhaust filter. Especially as an exhaust filter, a high-performance fine dust filter body (0,3- particles can be removed by 9
When using a fine dust filter (having the ability to collect 9.97% or more), the fine dust filter has a large ventilation resistance, so simply storing it in the exhaust passage will reduce the suction capacity (suction power). There is a danger that this will happen. Furthermore, a vacuum cleaner is known that is equipped with a parts storage part that accommodates a recess that matches the external shape of the stored parts in the rear part of the vacuum cleaner body (see, for example, Japanese Utility Model Application No. 61-52834). be.

(c) Problems to be Solved by the Invention The electric sweeper of the present invention increases the effective area of the filter by applying the exhaust air from the electric blower to the entire surface of the exhaust filter body housed in the exhaust passage, increasing the suction capacity by L1. It is designed to reflect the decline in Additionally, the exhaust filter body can be easily replaced.

(d) Means for Solving the Problems In order to solve the above problems, the vacuum cleaner of the present invention has a dust collection section, an electric blower, and an exhaust passage for the electric blower in the vacuum cleaner main body, and The exhaust passage consists of a side passageway located on the side of the electric blower and a rear passageway that is connected to the side passageway and expands to the rear of the electric blower, and is connected to the side passageway 4M wall surface of the rear passageway. The present invention is characterized in that a protruding portion is provided against which the exhaust air from the electric blower hits, and an exhaust filter body is supported by the protruding portion and is removably housed in the rear passage.

The exhaust filter body is removably housed in the rear passage with its filter surface inclined with respect to the axial direction of the electric blower so as to face the side passage.

Further, the vacuum cleaner of the present invention has a dust collection section, an electric blower, and an exhaust passage for the electric blower IL* in the vacuum cleaner body, and an exhaust filter body is removably housed in the exhaust passage, and the cleaning At the rear of the upper surface of the machine body, there is provided a parts storage section which is located above the exhaust passage and has a take-out opening for the exhaust filter body, and the take-out opening is closed by a parts receiving member so that it can be opened and closed automatically. It is a feature.

(e) Effect With the above configuration, the exhaust gas discharged from the electric blower at high speed is directed toward people from the side passages of the exhaust passage to the rear passage, and when it hits the protrusion and is guided by the protrusion, the flow direction is is directed toward the center of the filter surface of the exhaust filter body in the rear passage, so that the exhaust gas hits the entire filter surface and passes through the entire filter surface, and the fine dust contained in the exhaust gas is collected on the entire filter surface. Ru. At this time, the exhaust filter body is housed at an angle with respect to the axial direction of the electric blower so that its filter surface faces toward the side passage, so that the exhaust air is not concentrated on the side passage side of the filter surface. It passes through the filter by dispersing it over the entire surface, and the fine dust is collected on the entire filter surface.

Further, by removing the component receiving member of the component storage section, the extraction opening of the exhaust passage opens, and the exhaust filter body can be easily replaced.

(f) Example Hereinafter, an uninvented vacuum cleaner will be explained based on FIGS. 1 to 5.

(1) is a canister-type vacuum cleaner body, which has a main body lower case (2), a main body upper case (3) that covers the rear half side of the main body lower case (2), and the main body lower case (2). )
The front half of the main body has a dust collection chamber (5) with a top opening that can be opened and closed with a lid (4), and a partition 11 is provided at the bottom of the upper case (3) of the main body.
A blower storage chamber (8) that communicates with the dust collection chamber (5) through a ventilation hole (6) bored in (2g>) and stores an electric blower (7), and a cord reel (9). ) is stored in the cord reel storage room (10) and compartment 1! (11).
They are divided into sections and placed side by side on the left and right. Kirani the lid body (
4) is composed of an outer cover (12) and an inner cover (13), and the rear part is pivotally supported on the main body upper case (3),
Clamp the front part to the lower case (2) of the main body (14)
The top opening of the dust collection chamber (5) is closed by being locked by the dust collection chamber (5). Further, (15) is a suction port provided in the lid (4) to which a suction hose (not shown) is detachably connected, and a suction hole (16) is formed in the outer cover (12). A hose connection tube <17) is disposed between the outer cover (12) and the inner lid (13), and the suction hole <1
6) and the hose connection tube (17), the suction hole (
16) is provided with a shutter plate (18) for opening and closing.

In addition, a box-shaped filter (19) having shape retention and breathability is provided in the dust collection chamber (5), and a box-shaped filter (19) is disposed inside the box-shaped filter (19) and connected to the hose connection tube (17). Paper bag filter (21) that can be communicated via the opening plate mounting plate (20)
) is removably stored. Furthermore, <22) is an intake filter that covers the intake holes (6).

The electric blower (7) is connected to its fan case (23).
) and the rear of the motor case (24) with the front and rear shock absorbers (25
) (26) are elastically held by the front and rear support lips (27a) (27b) in the blower storage chamber (8), and a ventilation hole (6) is provided in front of the fan case (23). An intake space (29) is formed between the perforated partition wall (28) and the perforated partition wall (28).

(30)... is an exhaust hole drilled on the rear surface of the main body upper case (3), (31) is the motor case (24)
The exhaust passage (31) communicates the exhaust part (32) with the exhaust hole (30), and the exhaust passage (31) is connected to the partition wall (1).
1> and a partition wall (33) extending further rearward from the side surface of the electric blower 11 (7') through the rear, a side passageway ( 3
4) and a rear passage (35) which is connected to the side passage (34) and expands from the side passage (34) to the rear of the electric blower (7).

(36) is the side passageway (34) of the rear passageway (35>).
) The rear passage (
35), and the protruding portion (36) is formed to protrude toward the blower storage chamber (8) so that the reel edge (9a) of the cord reel (9) is connected to the partition wall (
11) is less likely to be hit.

(37) is an exhaust filter body that is removably housed in the rear passage (35) constituting the exhaust passage (31) and collects fine dust;
．． This is a high-performance fine dust filter body formed into a thick plate shape and capable of capturing 99.97% or more of fine dust particles of 3sa. And the exhaust filter body (
37) has its filter surface (
The mounting angle (a>) of the exhaust filter (37) is set to be larger than 90° with respect to the axial direction (A) of the electric blower (7) so that the exhaust filter (37a) faces the side passageway (34). (38) (38) is the filter body (3) formed on the partition 11 (33).
7) Fitting lip (39) (39) is a lip for supporting the filter body (37) formed on the main body lower case (2).

(40) is a hand-held handle stored in the storage groove (41) of the lid (4) so as to be freely accessible.
) has both ends attached to the main body upper case (3) and the lid body (4).
) It is rotatable by being coaxially supported with the rear part of the body.

(42) is an electrical equipment storage section formed at the front of the upper surface of the upper case (3), and an upper case cover (43) is provided between both ends of the handle (40) of the upper case (3). The room is closed and houses a printed circuit board (44) equipped with a control circuit for the electric blower (7) and the like. (45) is a semiconductor element such as a triac that is attached to the printed circuit board (44) and controls the input power to the electric blower (7); (46) is a heat sink of the element (45); (46) has its tip (46a) penetrating the main body upper case (3) and protruding into the air intake space (29). The tip (46a) faces the front side of the fan case (23) so as not to face the air intake hole (23a) of the fan case (23), and is connected to the electric blower (7).
) is perpendicular to the axial direction (A) of the intake space (29).
This increases the heat dissipation effect and creates ventilation holes (6
)... to the intake hole (23a).

(47) are two small cleaning parts (48) (4.
), and the rear part is the parts storage section that stores the upper case (3).
The room can be freely opened and closed by a rotatable cover (50) pivotably supported on. The parts storage section (47) is located above the exhaust passage (31), and the exhaust filter body (3
7) is provided with a take-out opening (51) from the exhaust passage (31). (52) is a component receiving member having a first recess (53) for storing a first small component (48), and the component receiving member (52) can freely open and close the extraction opening (51). are doing. Kirani (54) is a second recess provided in the upper case (3) of the main body for storing a second small component (49), and the second recess (54) has a maximum internal dimension (a). ) is approximately the same as the external dimension (b) of the second small part (49), and when the product receiving member (52) closes the extraction opening (51), the product receiving member (52) The end (52a
) slightly enters the recess (54), thereby making the opening dimension (c) smaller than the external dimension (b>), thereby preventing external force from being applied to the second small part (49). It is designed to be housed and held in the second recess 54) while preventing deformation caused by.

With the above configuration, the operation of the electric blower (7) causes suction air to flow from the dust collection chamber (5) to the ventilation hole (6) of the partition wall (28).
・The air enters the air intake space (29) through the air intake space (29), and then the electric blower (7) enters the air intake space (29) through the air intake hole (23a) of the fan case (23).
be sucked into. The heat sink (46) has its tip (4
6a) protrudes into the intake space (29) and is located in the flow path of the intake air to obtain a high heat dissipation effect, and the tip (46a) guides the intake air to the intake hole <29> for rectification. is performing an action. Exhaust part of electric blower * (7) <3
The exhaust gas completely exhausted from 2> enters the rear passage (35) from the side passage (34) of the exhaust passage (31), and passes through the protrusion (36).
is guided by the protrusion (36) and the direction of the flow is directed to the filter surface (37a) of the exhaust filter body (37).
), so that the exhaust air hits the entire filter surface (17a), and the fine dust contained in the exhaust gas is collected by the entire filter surface (37a), and only the exhaust gas passes through the exhaust filter body (37a). 37). At this time, the exhaust filter body (37) has its filter surface (37a)
the rear passageway (
35) Because it is housed at an angle inside the filter, the exhaust air is not concentrated on the side passageway (34) side of the filter surface (37a), but is dispersed and hits the entire filter surface (37a) to collect fine dust. After that, it passes through the exhaust filter body (37) and is then discharged from the exhaust hole (3o).

Therefore, the filter effective area of the exhaust filter body (37) becomes the entire filter surface (37a), and the exhaust filter body (37) can be used effectively.

Further, the exhaust filter body (37) has a parts storage section (
By removing the component receiving member (52) constituting the component 47), the extraction opening (51) of the exhaust passage (31) is opened and the component can be easily replaced.

(G) Effects of the Invention Since the present invention is constructed as described above, the exhaust gas discharged from the electric blower enters the rear passage through the side passage of the exhaust passage, and then hits the protrusion, thereby causing a flow change. The direction changes and it hits the entire filter surface of the exhaust filter body and passes through the entire filter surface.

Further, since the exhaust filter body itself is provided with its filter surface inclined toward the side passage, the exhaust gas is distributed and hits the entire filter surface. Therefore, the filter effective area of the exhaust filter body can be increased, and a vacuum cleaner with no reduction in suction capacity can be obtained.

Furthermore, if you remove the component receiving member of the component storage section, the extraction opening for the exhaust filter body stored in the exhaust passage will open.
This has the effect of greatly simplifying the work of replacing the exhaust filter body.

[Brief explanation of the drawing]

The drawings all relate to embodiments of the vacuum cleaner of the present invention; Fig. 1 is a longitudinal sectional view, Fig. 2 is a partially sectional plan view excluding the upper case, lid, and box-shaped filter, and Fig. 3 is a plan view. 4 is a plan view of the main part with the lid open, and FIG. 5 is a cross-sectional view of the main part of the parts storage section. (1)...Vacuum cleaner body, (5)...Dust collection chamber, (7)...Electric blower, (31)...Exhaust passage, (34>... side) Side passage, (35)... Rear passage,
(36)... Protruding portion, (37)... Exhaust filter body, (47)... Component storage section, (51)... Removal opening, (52)... Component receiving member.

Claims (3)

[Claims] (1) The vacuum cleaner body includes a dust collecting section, an electric blower, and an exhaust passage for the electric blower, and the exhaust passage is connected to a side passage located on the side of the electric blower and the side passage. and a rear passage that widens behind the electric blower, a protruding portion is provided on the side wall surface of the side passage of the rear passage to which the exhaust air of the electric blower hits, and an exhaust filter body is provided in the rear passage. A vacuum cleaner characterized by being supported by a protrusion and stored in a detachable manner. (2) The exhaust filter body is removably housed in the rear passage while being inclined with respect to the axial direction of the electric blower so that the filter surface faces the side passage. The vacuum cleaner mentioned. (3) The vacuum cleaner body has a dust collecting section, an electric blower, and an exhaust passage for the electric blower, and an exhaust filter body is removably housed in the exhaust passage, and the rear part of the upper surface of the cleaner body has the 1. A vacuum cleaner comprising a parts storage part located above an exhaust passage and having a take-out opening for the exhaust filter body, the take-out opening being openable and closed by a parts receiving member.