CN100399971C - electric vacuum cleaner - Google Patents

Abstract

The invention discloses an electric cleaner with small-sized and operational cyclone separating dust collection part, which comprises the following parts: inflow part (115) to flow air with dust, separating chamber (104) to separate dust in the air, first dust containing part (105a) to contain dust from separating chamber, first interconnecting hole (117) to connect the first dust containing part and separating chamber, first vent (144) to drain air from separating chamber, second vent (146) at the position of first dust containing part, second dust containing part (105b) to contain dust away from the first dust containing part (105a), second connecting hole (118) to connect second dust containing part and separating chamber at the position of first connecting hole, third vent (147) to drain air out of the second dust containing part.

Description

electric vacuum cleaner

technical field

The present invention relates to electric vacuum cleaners.

Background technique

The structure of the usual electric vacuum cleaner is to introduce the dust-containing air inhaled from the suction hole into the main body of the vacuum cleaner, collect the dust through the dust collecting part in the main body of the vacuum cleaner, and discharge the clean air from which the dust has been removed to the vacuum cleaner. The outside of the main body of the vacuum cleaner goes. The structure of the dust collection part is to filter by means of a paper filter to collect the dust, or to capture and collect the dust by means of centrifugal separation in the cyclone separation chamber.

The dust collecting part of the cyclone type electric vacuum cleaner is, for example, that described in Patent Document 1 (Japanese Patent Laid-Open No. 2003-79546). In this structure, the dust collecting part of the cyclone-separated electric vacuum cleaner sucks the air flow containing dust from the hose into the electric blower, and the dust is separated by means of centrifugal separation in the cyclone separation chamber, and then the dust is removed. Dust is collected in the dust containing part located below it for dust collection. Then, open the lid of the dust holding part shared with the cyclone separation chamber, and pour the dust out. In addition, a filter made of non-woven fabric is installed inside the cover, and the filter is independently communicated with the cyclone separation chamber and the dust containing part, and by switching the communication between them, the flow direction of the air is sometimes changed from the cyclone The separation chamber flows to the electric blower, sometimes from the dust collection housing to the electric blower, where the dust is compressed in the dust containment section.

The most important thing about electric vacuum cleaners used in general households is that they have strong dust suction ability, small size, and are easy to use. Moreover, the dust collection part is required to be small in size, and the operation of pouring out the collected dust is simple. Because a cyclone separation chamber is used to collect the dust collecting part of the dust, all the large and small dust are collected together, so when the collected dust is poured out, the fine dust is easy to fly up, so that the dust is poured out. Operation is very troublesome. In addition, when it is desired to improve the performance of collecting dust (dust collection), the length of the cyclone separation chamber must be lengthened to make the cleaner large.

The cyclone type dust separation device (dust collection part) in which the cyclone separation chamber is arranged horizontally must be provided with a special flow path in order to generate a swirling air flow at the entrance of the cyclone separation chamber, so it is difficult to make it small and easy to operate. In addition, since the filters on the side of the cyclone separation chamber and the side of the dust containing part are used separately, the meshes are quickly clogged, or if the filter area is not increased, it is difficult to improve the index indicating the ability to suck dust. One of the suction power.

Contents of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide an electric vacuum cleaner having a small, easy-to-operate cyclone-type dust collecting section.

Another object of the present invention is to provide an electric vacuum cleaner having a cyclone-separated dust-collecting part having a small resistance, ie, a large suction power, and a high dust-collecting (dust-collecting) performance.

Still another object of the present invention is to provide an electric vacuum cleaner with a cyclone separation type dust collecting part which can reliably keep the collected fine dust from flying away.

Still another object of the present invention is to provide an electric vacuum cleaner which can prevent the suction force and air volume of the vacuum cleaner from decreasing even when dust is collected.

Still another object of the present invention is to provide an electric vacuum cleaner having a cyclone-separated dust collecting part which can easily distinguish the parts to be cleaned while reducing the number of parts to be cleaned by the user.

In order to achieve the above object, the electric vacuum cleaner of the first scheme of the present invention has the following parts: the inflow part that flows into the dusty air; the separation chamber that dust is separated from the dusty air that the inflow part flows into; The first dust containing part of the dust coming out; the first communication port connecting the first dust containing part with the above-mentioned separation chamber; the first exhaust port for discharging the air flow discharged from the above-mentioned separation chamber; A second exhaust port through which the air discharged from the dust containing part is exhausted; characterized in that it also has

a second dust accommodating portion which accommodates dust and is provided separately from the above-mentioned first dust accommodating portion;

And a second communication port that communicates with the second dust containing portion and the separation chamber and is provided separately from the first communication port.

Furthermore, in addition to the above-mentioned first aspect, it is also characterized in that it further includes a third exhaust port for exhausting the air exhausted from the second dust containing portion.

In addition, it is also characterized in that the inflow portion and the second communication port are vertically shifted from each other.

In addition, it is also characterized in that the lower portion of the second communicating port is formed as a cylindrical wall.

In the present invention, since most of the dust flowing into the separation chamber is separated in the separation chamber and transported to the dust containing part for compression to reduce the volume, the dust collecting part can be miniaturized.

Furthermore, since there is a second communication port communicating with the separation chamber, when there is more dust accumulated in the dust containing part, the air flow rate of the air flowing to the second communication port is automatically increased, and the air flowing from the inflow part to the separation chamber The air volume is difficult to reduce. Therefore, even when dust is collected, it is possible to realize an electric vacuum cleaner in which the suction force and the air volume of the vacuum cleaner are prevented from being lowered.

In addition, when the distance between the second communication port and the third exhaust port is shortened, since the amount of dust accumulated between the second communication port and the third exhaust port can be reduced, even if the distance between the second communication port and the third exhaust port Even in the state where dust is accumulated between the third exhaust ports, the increase in the pressure loss of the air flow discharged from the third exhaust port through the second communication port can be reduced. Therefore, even when dust is collected, it is possible to realize an electric vacuum cleaner in which the suction force and the air volume of the vacuum cleaner are prevented from being lowered.

In addition, since the air volume of the air flowing from the inflow part to the separation chamber is difficult to decrease, the performance of trapping dust in the separation chamber can be maintained, and the suction force and air volume of the vacuum cleaner can be prevented even when dust is collected. Falling electric vacuum cleaner.

In addition, the air flow flowing into the separation chamber is divided into the air flow through the exhaust port for discharging the air flow from the separation chamber, the air flow passing through the dust containing part after passing through the first communication port, and the air discharged through the second communication port. flow, so the ventilation resistance can be reduced, so that an electric vacuum cleaner with high suction power can be obtained.

In addition, when the amount of dust accumulated in the dust accommodating portion is small, most of the dust can be transported into the dust accommodating portion due to the large amount of air passing through the dust accommodating portion. Also, when there is a lot of dust accumulated in the dust accommodating part, the pressure difference between the first communication port and the second exhaust port provided on the dust accommodating part increases, and the dust accumulated in the dust accommodating part will be subjected to a greater pressure. strong compression.

In addition, since the lower part of the second communication port is made of an arc-shaped wall, the air flow in the separation chamber becomes a swirling air flow, so the dust accumulated between the second communication port and the third exhaust port will be removed by this A swirling air stream is further compressed.

In addition, since the collected dust is compressed, it is possible to securely hold the collected fine dust so that it does not fly away.

In addition, since the dust can be dumped with one action during the dust removal process, it is possible to realize an electric vacuum cleaner in which the parts to be cleaned can be easily distinguished while reducing the number of parts to be cleaned by the user.

Description of drawings

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

Fig. 2 is a perspective view showing that the upper cover of the vacuum cleaner body of the electric vacuum cleaner shown in Fig. 1 is in an open state;

Fig. 3 is a perspective view showing a state in which the dust collecting part 103 is detached by opening the upper cover of the vacuum cleaner main body of the electric vacuum cleaner shown in Fig. 1;

Fig. 4 is a schematic diagram showing the airflow in the main body of the vacuum cleaner;

FIG. 5 is a perspective view of the appearance of the dust collecting part 103;

Fig. 6 is a perspective view of the appearance of the dust collecting part 103 seen from the downstream side;

Fig. 7 is a perspective view of the appearance after the filter frame 140 and the filter frame 163 are opened together from the dust collecting case 105;

8 is a longitudinal sectional view of the dust collecting portion 103 including the central axis of the inner cylinder 131;

Fig. 9 is a sectional view along the A-A line of Fig. 8;

FIG. 10 is a perspective view of the inner cylinder 131 .

Detailed ways

Embodiments of the present invention will be described below with reference to the drawings.

Example 1

Fig. 1 is a perspective view showing the appearance of an electric vacuum cleaner according to an embodiment of the present invention; Fig. 2 is a perspective view showing that the upper cover of the main body of the vacuum cleaner is in an open state; A perspective view of the disassembled state; FIG. 4 is a schematic diagram showing the air flow in the main body of the vacuum cleaner; FIG. 5 is a perspective view of the appearance of the dust collecting part 103; FIG. 6 is a perspective view of the appearance of the dust collecting part 103 seen from the downstream side; Fig. 7 is the exterior perspective view that filter frame 140 and filter frame 163 both are opened together from dust collection case 105; Fig. 8 is the longitudinal sectional view of the dust collection part 103 that includes the central axis of inner cylinder 131; Fig. 9 is A sectional view along line A-A of FIG. 8; FIG. 10 is a perspective view of the inner cylinder 131.

As shown in FIG. 1 and FIG. 2 , the electric vacuum cleaner of this embodiment has the following parts: a vacuum cleaner main body 1 , a hose 2 , a hand-held operating tube 3 , an expansion joint tube 4 and an air suction port 5 . The vacuum cleaner main body 1 and the hand-held operation pipe 3 are connected by a flexible pipe 2, and the suction port 5 is connected to the hand-held operation pipe 3 through the expansion joint pipe 4 during use.

Moreover, the hose 2 attaches the connection part 2a to the hose connection port part 116 of the cleaner main body 1. As shown in FIG. The vacuum cleaner main body 1 is equipped with an electric blower 107 inside. With the help of the suction force of the electric blower 107, by sucking air from the suction port 5, the dust is mixed in the sucked airflow, and then the sucked air containing dust is sucked. The air is sucked into the main body 1 of the vacuum cleaner through the telescopic connecting pipe 4, the hand-held operating pipe 3 and the hose 2, and after the dust is collected by the dust collecting part 103, the air is discharged to the outside of the vacuum cleaner.

As shown in FIGS. 2 to 4 , the main body of the vacuum cleaner 1 is provided with a detachable dust collecting part 103 longitudinally installed in the recess of the upper case 150 disposed between the lower case 101 and the upper cover 102 . In addition, between the lower case 101 and the upper case 150, there is a filter case 113, on which the auxiliary filter 112 is arranged, and a filter cover 113a pressing the auxiliary filter 112. . In addition, an electric blower 107 and a winding roller (not shown) are installed in the vacuum cleaner main body 1 .

In addition, the lower case 101 has running wheels and guide wheels (not shown) for running this cleaner main body 1 on the ground. Also, on the upper part of the upper case 150, a rotatable handle 207 is installed so that the vacuum cleaner main body 1 can be carried. In this embodiment, when the dust collecting part 103 is installed on the main body 1 of the vacuum cleaner, an elastic sealing part 172 integrated with the filter frame 163 is provided so that the dust collecting part 103 and the filter housing 113 Can form an airtight state.

Also, a dust removal device 164 is arranged on the upper side of the filter housing 113 . When the dust removal spring 170 arranged on the dust removal device 164 rotates, the second filter 161 is moved to remove the dust accumulated on the second filter 161 .

The upper cover 102 is mounted on the upper rear portion of the upper case 150 and can be rotated. In the state where the upper cover 102 is closed, the inflow part 115 of the separation chamber 104 and the hose connection port part 116 are crimped together through elastic components, and are in an airtight state, and the dust collecting case 105 and the filter frame 140 are crimped together. Together, in an airtight state, the filter frame 140 and the filter frame 163 are crimped together, and are in an airtight state, and the filter frame 163 is crimped together with the filter housing 113 that accommodates the auxiliary filter 112, in an airtight state. secret state. Also, the electric blower 107 is crimped with the filter housing 113 through the anti-vibration rubber of the elastic body, and is in an airtight state.

Next, installation inside the cleaner main body 1 will be described. The hose connection port portion 116 is located at the center of the cleaner main body 1 in the width direction when viewed from above, and is arranged in front of the aforementioned cleaner main body 1 . The position of the central axis of the separation chamber 104 deviates from the center in the width direction, and the inflow portion 115 and the hose connection port portion 116 through which air flows in a substantially tangential direction of the separation chamber 104 are arranged linearly. In addition, the first dust containing portion 105a is provided on the side opposite to the center axis of the separation chamber 104 in the width direction. Likewise, the electric blower 107 is also provided on the side opposite to the central axis of the separation chamber 104 in the width direction, and in front of it, an auxiliary filter 112 and a filter case 113 for accommodating the auxiliary filter 112 are provided. Winding rollers (not shown) are provided laterally to electric blower 107 and in the same direction as the central axis of separation chamber 104 in the width direction of cleaner body 1 .

Through such an arrangement, the length of the main body 1 of the vacuum cleaner can be shortened, and small volume and light weight can be realized. In addition, since it is not necessary to provide a bend or the like on the inlet portion of the separation chamber 104, an effect of reducing pressure loss can be obtained. In addition, if the upper cover 102 is made of a transparent plastic material, then, when the upper cover 102 is closed, even if the upper cover 102 covers the dust collecting housing 105, the specific situation of dust accumulation can be seen clearly by visual inspection. .

In addition, in the separation chamber 104, since the inflow portion 115 as the air suction port is arranged at the lower part of the center of the length of the separation chamber 104 in the direction of the central axis, the hose connection port portion 116 communicating with the above-mentioned inflow portion 115 can also be arranged The lower part of the center on the length of the separation chamber 104 in the direction of the central axis. In this way, since the above-mentioned hose connection port portion 116 can be arranged at the bottom of the vacuum cleaner main body 1, when the user holds the hand-held operation tube 3 and passes the hose 2 to pull the above-mentioned vacuum cleaner main body 1 back, the above-mentioned vacuum cleaner main body 1, it will not fall over and can be pulled back steadily.

Also, since the above-mentioned hose connection port portion 116 can be arranged on the lower side of the above-mentioned vacuum cleaner main body 1, it is sufficient to arrange the above-mentioned hose connection port portion 116 at the bottom of the upper casing 150 and the lower casing 101. , there is no need to extend the two housings upwards. Therefore, since the bending moment applied to the lower case 101 for bearing the force applied to the hose connection port portion 116 can be reduced, it is not necessary to provide a special reinforcement portion on the lower case 101, which contributes to lightening. weight and miniaturization.

Next, a cyclone separator utilizing the principle of centrifugal separation employed in an embodiment of the present invention will be described. Here, the dust collecting case 105 is composed of the separation chamber 104, the first dust containing part 105a, and the second dust containing part 105b, and the dust collecting part 103 is composed of the dust collecting case 105 and a filter.

This vacuum cleaner main body 1, as shown in Figure 4, sucks the air containing dust from the inflow part 115 into the separation chamber 104 through the hose 2, and then rotates it from the upper side to the lower side to remove the dust by centrifugal separation. After being separated, the dust is transported into the first dust containing portion 105 a through the first communication port 117 arranged at the upper portion of the separation chamber 104 . Then, the air flowing into the first dust containing portion 105a passes through the second exhaust port 146, and the dust is filtered out by the filter B106b to discharge the air.

Here, a part of the air flowing into the separation chamber 104 and a part of the dust not transported to the first dust containing part 105a are transported to the second dust containing part 105b through the second communicating port 118 provided on the upper part of the separating chamber 104 . The air flowing into the second dust containing portion 105b passes through the third exhaust port 147, the dust is filtered out by the filter C106c, and the air is discharged.

Then, in the separation chamber 104, fine and very light dust that is not transported into the first dust containing portion 105a and the second dust containing portion 105b, and a part of the air flowing into the separation chamber 104 are reversed at the separation chamber 104 upper part and Descending, after passing through the exhaust hole 133 arranged on the outer circumference side of the inner cylinder 131, then passing through the connection port 120, the connecting channel 145, and the first exhaust port 144 in sequence, after further filtering out dust with the filter A106a, the air discharge.

The air flow discharged from the filter A106a above, the air flow discharged from the filter B106b and the air flow discharged from the filter C106c are further separated from the fine dust by the second filter 161, and then passed through the auxiliary filter. device 112 and is sucked into the electric blower 107. The air discharged from the electric blower 107 passes through the filter 108, a part passes through an exhaust duct (not shown), and the other part passes through a winding roller (not shown) to cool them, and then is discharged to the outside of the vacuum cleaner.

That is, in the air flow after splitting in the separation chamber 104, the air flow of the air volume A flowing out from the filter A 106 a through the first exhaust port 144 and the air flow of the air volume flowing out of the filter B 106 b through the second exhaust port 146 The air flow of B, and the air flow of air volume C flowing out from the filter C106c through the third exhaust port 147, after the fine dust is collected by the second filter 161, are sucked into the electric blower 107 through the auxiliary filter 112 middle.

In the embodiment of the present invention, most of the dust flowing into the inflow portion 115 is separated in the separation chamber 104 and transported to the first dust containing portion 105a. At this time, since there is an air flow flowing from the first communication port 117 to the second exhaust port 146, the dust transported into the first dust containing portion 105a is compressed and reduced in volume due to being pressed toward the filter B106b. . Therefore, since much dust can be accommodated even if the first dust containing portion 105a is made small, the dust collecting portion 103 can be miniaturized.

Also, since the dust that is not transported from the separation chamber 104 to the first dust containing portion 105a is accumulated in the second dust containing portion 105b, the performance of collecting dust (dust collection) can be improved. Also, as shown in Figure 9, if the volume of this second dust containing part 105b is made smaller than the volume of the first dust containing part 105a, then, because the amount of dust accumulated in the second dust containing part 105b is few, And because the flow resistance of air flowing through the second communicating port 118, the second dust containing part 105b, and the flow passage of the third exhaust port 147 from the separation chamber 104 is difficult to increase, so even if the dust is accumulated in the first dust containing part In the state in 105a, the amount of air flowing into the inflow portion 115 can be reduced very little. As a result, it is possible to realize an electric vacuum cleaner that prevents the suction power and air volume of the vacuum cleaner from decreasing even in the case where a lot of dust has accumulated.

In addition, since there is a second communication port 118 communicating with the separation chamber 104, when there is a lot of dust accumulated in the first dust containing part 105a, the amount of air flowing to the communication port 118 will be automatically increased, so that the flow rate from the communication port 118 will not be reduced. The inflow portion 115 is the amount of air that flows into the separation chamber 104 . Therefore, even in the case where a lot of dust has accumulated, an electric vacuum cleaner that prevents the suction power and air volume of the vacuum cleaner from decreasing can be realized.

In addition, when the distance between the second communication port and the third exhaust port is shortened, since the amount of dust accumulated between the second communication port and the third exhaust port can be reduced, even if the distance between the second communication port and the third exhaust port Even when dust is accumulated between the third exhaust ports, an increase in the pressure loss of the air flow discharged from the third exhaust ports through the second communication port can be reduced. Therefore, even in the case where a lot of dust has accumulated, an electric vacuum cleaner that prevents the suction power and air volume of the vacuum cleaner from decreasing can be realized.

In addition, the air flow flowing into the separation chamber 104 is split due to the arrangement of the following three flow passages in parallel, that is: after passing through the exhaust hole 133 of the inner cylinder 131, the flow passage of the gas is discharged through the connecting passage 145; The first dust containing part 105a carries out the flow path of exhaust; The flow path of carrying out exhaust through the second dust containing part 105b; Therefore, compared with each flow path separately existing, can reduce the resistance that air passes, thereby can obtain suction Powerful electric vacuum cleaner. That is, due to the air volume of the air flow passing through the first air outlet 144 after passing through the air outlet 133 of the inner cylinder 131, compared with the time when the air does not pass through the second air outlet 146 and the third air outlet 147, Therefore, the ventilation resistance of the first exhaust port 144 can be reduced. Therefore, the vacuum cleaner has a feature that can further increase the suction power.

In addition, when the amount of dust accumulated in the first dust accommodating portion 105a is small, the air flow of the air volume B flowing out from the filter B 106b due to passing through the first dust accommodating portion 105a and then through the second exhaust port 146, After passing through the second dust containing part 105b and then passing through the third exhaust port 147, the air flow of the air volume C flowing out from the filter B106b is added together, which is more than passing through the exhaust hole 133 of the inner tube 131 and then passing through the first The exhaust port 144 has a large amount of air flow A flowing out from the filter A106a, so most of the dust is transported to the first dust containing part 105a and the second dust containing part 105b. In addition, since the volume of the first dust containing portion 105a is larger than that of the second dust containing portion 105b, most of the dust is accumulated in the first dust containing portion 105a.

In addition, in this embodiment, since the air flow in the cleaner main body 1 is divided into three passages as shown in FIG. Difference, with the help of this pressure difference, the dust is always compressed. Also, when there is a lot of dust accumulated in the first dust containing portion 105a, the pressure difference between the first communication port 117 and the first exhaust port 144 increases, and the dust accumulated in the first dust containing portion 105a be more compressed.

Since the more dust accumulated in the first dust accommodating portion 105a, the pressure difference becomes larger, so there is also a feature that the more dust in the first dust accommodating portion 105a, the stronger the compressive force. Therefore, the dust accumulated in the first dust accommodating portion 105a is accumulated in layers in front of the filter B106b, and the fine dust is also accumulated together. In this way, since the dust is mixed among the fibrous dust, when the garbage is dumped, the effect that the dust is difficult to fly can be obtained.

In addition, since the dust that is centrifugally separated in the separation chamber 104 and delivered to the first dust containing portion 105a is difficult to reverse flow to the separation chamber 104, the dust delivered to the first dust containing portion 105a will not fly up again. Thereby, dust collection performance can be improved. Moreover, as shown in FIG. 8 or FIG. 9, ribs 156, 157 are provided in the first dust containing portion 105a, so the eddies generated in the first dust containing portion 105a are all small, reducing the generation of large eddies. Therefore, the dust that has flowed into the first dust containing portion 105a can be prevented from flowing into the separation chamber 104 again due to such a large vortex. Since the dust can be prevented from flying again into the separation chamber 104, the dust collection performance can be improved.

In addition, when the amount of dust accumulated in the first dust containing portion 105a increases, the air flow rate passing through the first dust containing portion 105a decreases because the airflow resistance when passing through the first dust containing portion 105a increases. Therefore, when the amount of dust that easily generates odor increases when accumulated in the first dust containing portion 105a, the amount of air passing through the dust will decrease, thereby also having the effect of preventing the odor from being emitted to the outside of the vacuum cleaner.

Here, the sum of the air volume A of the air stream flowing out from the first exhaust port 144, the air volume B of the air stream flowing out from the second exhaust port 146, and the air volume C of the air stream flowing out from the third exhaust port 147 , and the size relationship between them can be determined by the following method in accordance with the suction power measurement method recorded in JIS C 9108 (electric vacuum cleaner). In the case of only blocking the first exhaust port 144, the airflow flowing in from the inflow portion 115 passes through the first communication port 117, the first dust containing portion 105a and the second exhaust port 146 sequentially from the separation chamber 104. , the air volume B flowing out from the filter B106b, and the sum of the air volume C flowing out from the filter C106c after passing through the second communication port 118, the second dust containing part 105b and the third exhaust port 147 from the separation chamber 104 in turn flows into the motor The suction power of the air blower 107 is WB. In addition, in the case where the second exhaust port 146 and the third exhaust port 147 are blocked, that is, the air flow flowing in from the inflow portion 115 only passes through the exhaust hole 133 and the connecting passage of the inner cylinder 131 sequentially from the separation chamber 104. 145, and the first exhaust port 144, the suction power when the air volume A flowing out from the filter A106a flows into the electric blower 107 is WA.

When the value of the suction power WA is smaller than the value of the suction power WB, it can be said that the sum of the air volume B and the air volume C is greater than the air volume A. This means that due to the high output power of the vacuum cleaner, that is, the high suction power, it means that the slope of the pressure loss curve is small and the ventilation resistance is small, so it is easy to flow more air volume.

In order to carry out more conveniently, in the above measurement state, the air volume control valve of the measuring device is set to a fully open position, when the air volume in the former state is QB, and the air volume in the latter state is In QA, when the value of QB is larger than the value of QA, it can be said that the sum of the air volume B and the air volume C is greater than the air volume A. This means that since the air volume value when the air volume control valve is fully opened is large, it means that the slope of the pressure loss curve is small, and the ventilation resistance is small, so more air volume can easily flow through.

In the embodiment of the present invention, since the connecting channel 145 is arranged in parallel with the first dust containing part 105a and the second dust containing part 105b to divide the air flow, it can reduce the flow rate compared with the case where each flow channel exists alone. The ventilation resistance can be such that the air volume Q when the air volume control valve of the measuring device is set to the fully open position is greater than the values of the aforementioned QA and the aforementioned QB. That is, the flow velocity in the expansion joint pipe 4 can be increased, and the flow velocity in the air intake port 5 when the air intake port 5 is connected to the front surface of the expansion joint pipe 4 can also be increased.

Since the flow velocity in the above places can be increased, the dust on the surface to be cleaned can be sucked in more. That is, the time spent by the user for cleaning is shortened, and the workload of the user is reduced. In addition, due to the increased air volume, the flow velocity of the inflow part 115 can also be increased, so the ability of separating dust in the separation chamber 104 is improved, and the dust collection performance is correspondingly improved.

Next, the detailed structure of dust collecting case 105 will be described. The direction in which the dust that is centrifugally separated in the separation chamber 104 flows out from the separation chamber 104 through the first communication port 117 is the rotation direction in the separation chamber 104 and is the tangential direction of the separation chamber 104 . Therefore, in this embodiment, the first communication port 117 of the separation chamber 104 can be arranged on the front side of the electric vacuum cleaner main body 1 farthest away from the filter B 106b crimped on the above-mentioned dust collecting case 105 (soft tube connection port portion 116 side). At this time, since the dust centrifugally separated in the separation chamber 104 accumulates in the first dust containing portion 105a from the vicinity of the filter B106b toward the first communication port 117 side, the dust will be filled with the above-mentioned first communication port 117. Before a dust containing portion 105a, dust will not block the above-mentioned first communication port 117. That is, the volume of the above-mentioned first dust storage portion 105a can be effectively used.

In addition, the second dust accommodating portion 105b is arranged between the separation chamber 104 and the second filter 161 , and the second communication port is in the second dust accommodating portion 105b at a position farthest from the second filter 161 . Therefore, in this embodiment, the second communication port 118 of the separation chamber 104 can be arranged in the second dust containing portion 105b so that it is farthest away from the filter C106c crimped on the dust collecting case 105. The front side of the electric vacuum cleaner main body 1 (the hose connection port part 116 side). At this time, the dust that is centrifugally separated in the separation chamber 104 accumulates from the vicinity of the filter C106c to the second communication port 118 side because it is in the second dust containing portion 105b. Before the second dust containing portion 10ba, dust does not block the second communication port 118 described above.

Also, since the second communication port 118 is arranged above the inflow portion 115, and at the position opposite to the inflow portion 115, the cylindrical wall 119 is arranged, so the air flowing in from the inflow portion 115 will flow in the separation chamber 104. Internal rotation. When the dust accumulates in the second dust containing part 105b, it begins to accumulate from the bottom of the second dust containing part 105b. Since the second communication port 118 is located above the second dust containing part 105b, when the dust is full Before the second dust containing portion 105b, dust does not block the second communication port 118 described above. In addition, it has an advantage that the dust does not fall down until the dust fills the second dust containing portion 105b.

In addition, since the swirling air flow is generated in the separation chamber 104, the dust in the second dust containing portion 105b will be pressed to the side of the filter C106c by the swirling air flow, and will not flow back to the separation chamber 104 side. .

Here, the filter A106a, the filter B106b and the filter C106c are made of a mesh filter with mesh, or a metal mesh, or a metal plate with small holes, or a plastic flat plate with small holes. The air containing dust flows into the first dust containing part 105a from the first communication port 117 of the separation chamber 104, and the relatively large dust in the air is blocked by the filter B106b, allowing them to accumulate in front of the filter B106b. The fine dust passing through the filter B106b is collected by the second filter 161 . In addition, the dust that flows into the second dust receiving portion 105b from the second communication port 118 of the separation chamber 104 is blocked by the filter C106c for relatively large dust in the air, allowing them to accumulate in front of the filter C106c. The fine dust that has passed through the filter C106c is collected by the second filter 161 . In addition, the filter A106a also has the function of preventing fine fiber dust and the like mixed in the airflow flowing out from the first exhaust port 144 after passing through the exhaust hole 133 of the inner cylinder 131 from leaking. The finer dust that has passed through the filter A106a is collected by the second filter 161.

At this time, the role of the auxiliary filter 112 is to prevent dust from being sucked into the electric blower 107 when the vacuum cleaner main body 1 is operated without installing the dust collecting part 103 by mistake.

As shown in Figure 5 and Figures 8 to 10, on the outer cylinder 135 of the separation chamber 104, an air suction port, that is, an inflow part 115, is provided so that the air can be arranged along the length of the central axis direction of the separation chamber 104. The lower central, substantially cylindrical separation chamber 104 enters tangentially therein. A first communication port 117 and a second communication port 118 are provided in the upper part of the center of the separation chamber 104 . An inner cylinder 131 is provided at the lower part of the separation chamber 104 and is connected to the connection port 120 at the lower part. At this time, if the elastic sealing member 153 is installed between the connection port 120 and the connecting channel 145, and the elastic sealing member 151 is installed between the outer cylinder 135 and the inner cylinder 131, an airtight effect can be easily obtained. In addition, if the two elastic sealing parts 151 and 153 are made or integrated, and the inner cylinder cover 152 is installed on the inner cylinder 131 with screws or the like, so that when the elastic sealing parts are clamped, the inner cylinder 131 can be ensured Airtight performance with the inner cylinder cover 152. The inner cylinder 131 is composed of the following parts: a cylinder portion 134; a partition plate 132 wound in a spiral shape on the cylinder portion 134; and an outer wall 139 disposed on one side of the outer circumference of the above-mentioned partition 132 . Here, a partition plate 132 wound in a spiral shape is also provided on the inner cylinder 131 so that the dust-laden air flow flowing in from the inflow portion 115 tends to spiral upward. The joint part of this dividing plate 132 and the above-mentioned cylindrical portion 134 is combined with rounded corners, and the height of the above-mentioned cylindrical portion 134 is approximately equal to the height of the highest part of the dividing plate 132, or is only higher than the height of the dividing plate 132. The height of the highest part is about 5mm higher. In addition, the height of the guide wall 137 is substantially equal to the height of the highest portion of the partition plate 132 .

Here, the shape of the guide wall 137 is a convex shape that bulges toward the outer cylinder side, or a "ㄑ" shape with a curved portion 137a, so that the airflow flowing into the separation chamber 104 from the inflow portion 115 is directed toward the outer cylinder 135. side. In addition, each side of the cross-sectional shape of the guide wall 137 may be straight or arc-shaped. In addition, the curved portion 137a is preferably rounded to connect the sides smoothly. In addition, the gap between the curved portion 137a of the guide wall 137 and the outer cylinder 135 is preferably set at 20mm or more, so that even if a toothpick is sucked in, it will not get stuck.

In this embodiment, the partition plate 132 of the inner tube 131 is spirally rolled upwards so as to make the air in the separation chamber 104 rise upwards. Therefore, the dust that flows into the separation chamber 104 from the inflow portion 115 is rotated in the separation chamber 104 to be centrifugally separated while rising along the spiral partition 132, and then passes through the first communicating port 117 to The dust collecting case 105 conveys. In this way, since the above-mentioned dividing plate 132 is rolled upwards in a spiral shape, the dust is subjected to a strong upward action in the above-mentioned separation chamber 104, so even if the air volume of the DC battery type vacuum cleaner is less than 1 cubic meter per minute, it will The working vacuum cleaner can also transport the dust into the dust collecting housing 105 . Here, since the axial direction of the separation chamber 104 is not in the horizontal direction, at the time of the above-mentioned small air volume, it is prevented that the dust with a larger specific gravity flowing into the separation chamber 104 cannot rotate and fall down during the rotation process. The situation of secondary impact on the separation chamber 104 can prevent the separation chamber 104 from being damaged or broken. In addition, if the height of the guide wall 137 is made higher than the height of the inflow portion 115, the air flow flowing in from the inflow portion 115 will not interfere with and mix with the air flow rotating in the separation chamber 104, thereby enabling Prevent the turbulent flow that will be generated, and can prevent the rapid expansion when flowing in, and reduce the pressure loss.

In addition, the cylindrical portion 134 has an exhaust hole 133 for exhausting a part of the air in the separation chamber 104 . This air vent can be a lot of holes with a diameter of about 2 mm formed on the tube part 134 of the inner tube 131 when the inner tube 131 is formed, or it can be made of a resin fiber with a large "mesh". The mesh filter is integrally formed with the cylindrical portion 134 by insert molding. In addition, the so-called "mesh" refers to the size of the mesh filter or the hole of the metal mesh (the size of the gap between the wire and the wire), or the size of the small hole set on the inner cylinder 131 of the metal plate or plastic plate. size.

Here, due to the dust-laden air flowing into the separation chamber 104, it is difficult to directly flow into the exhaust hole 133 provided on the inner tube 131 through the above-mentioned guide wall 137, thereby preventing the dust from clogging the exhaust hole 133 without reducing the The flow area of the exhaust hole prevents the reduction of the suction air volume of the vacuum cleaner, so that it can continuously maintain its suction.

In addition, because the dust-laden air flowing into the separation chamber 104 can flow toward the outer diameter side of the separation chamber 104, that is, toward the outer cylinder 135 side by means of the above-mentioned guide wall 137, the dust is subjected to strong centrifugal separation. function, and transported to the first accommodation portion 105a through the first communication port 117, thereby improving the dust collection performance. In addition, because the above-mentioned exhaust hole 133 is not easy to be blocked by dust, and the ventilation of the air flow of the air volume A flowing out from the first exhaust port 144 through the exhaust hole 133 provided on the inner tube 131 from the separation chamber 104 It is also difficult to increase the resistance, so it is possible to prevent the reduction of the suction air volume of the vacuum cleaner, and to maintain its attractive force continuously.

In addition, even if the above-mentioned guide wall 137 is provided, the cross-sectional area of the flow path of the inflow portion 115 of the separation chamber 104 will not be reduced, and the speed of inflow into the separation chamber 104 will not be increased, so it is possible to prevent damage caused by inflow. The loss increases without reducing the suction power, thereby improving the performance of dust collection.

In addition, in the process of setting the vent hole 133 on the barrel portion 134 by forming, the barrel portion 134 and the vent hole 133 are made by radially moving the mold, so that the barrel portion 134 of the inner barrel 131 In the case where the helically wound partition plate 132 is provided at the same time, the exhaust hole 133 has an opening shape facing the flow direction of the swirling flow inside the separation chamber 104 . Therefore, it is more effective to provide this guide wall 137 . At this time, when such exhaust hole 133 is made as an opening toward the flow direction of the swirling flow inside the separation chamber 104, due to the air flow of the air volume A flowing out from the first exhaust port 144, the flow of the above-mentioned exhaust gas can be reduced. The ventilation resistance in the process in the hole 133 can improve the suction power of the vacuum cleaner.

Here, since the structure of the cylindrical part 134 of the inner cylinder 131 is made approximately equal to the height of the highest part of the above-mentioned partition 132, hair, hair of pets such as dogs and cats, or thread ends, etc., can be prevented from being entangled. On the cylinder portion 134 of the inner cylinder 131 from which air is discharged from the separation chamber 104 . In addition, even if dust such as hair is wound on the cylindrical portion 134 of the inner cylinder 131, it is impossible to wind around this cylindrical portion 134, and these dusts will flow upward with the rotating air rising inside the separation chamber 104. Move, and transport to the first dust storage part 105a and the second dust storage part 105b. In this way, since the reduction of the effective area of the exhaust hole 133 of the inner cylinder 131 is prevented, the suction force of the vacuum cleaner will not be reduced. In addition, long dust such as hair cannot arrive in the separation chamber 104, but is transported in the first dust containing part 105a and the second dust containing part 105b, because the air-flow in this separation chamber 104 can be suppressed to form turbulent flow, So it doesn't reduce the attractiveness of the vacuum cleaner.

Also, by preventing hair, hair of pets such as dogs and cats, lint, etc. from being wound around the tube portion 134 of the inner tube 131, the dust collecting portion 103 with improved maintenance performance can be realized. In addition, if the inner cylinder 131 is made into the above-mentioned structure, when the dusty air is made to flow downward from the top of the separation chamber 104, or the frame is to place the separation chamber 104 laterally, the central axis of the swirling flow The same effects can be obtained also when they are arranged in a substantially horizontal direction.

At this time, when the dust in the dust collection case 105 is discarded, and when there is dust in the separation chamber 104 and the second separation chamber 114, the upper cover 102 is opened upwards. In this state, hold the dust collection case Take out the handle 123 on the top of the body 105. After the user takes the dust collecting case 105 out of the vacuum cleaner main body 1, he presses the button 142 to open the two frames of the filter frame 140 and the filter frame 163 in the dust collecting case 105 together, and the dust accumulated in the dust collecting case 105 is opened. The dust in the first dust accommodating part 105a and the second dust accommodating part 105b in the dust case 105 and the dust in the bag 162 are drained. Dumping dust is preferably carried out when the dust has not been filled with the dust collecting housing 105 . In addition, almost all the dust that has entered into the main body 1 of the cleaner is accumulated in the first dust containing portion 105 a in the dust collecting case 105 . Therefore, on the dust collecting housing 105, a dust discharge line 155 is provided near the first communicating port 117, and the user can refer to this line when discharging dust. The dust-removing line 155 is not a line facing the horizontal or vertical direction. When the dust is accumulated in the first dust-accommodating portion 105a, the part close to the first communicating port 117 is finally filled with dust, so the dust-removing line 155 is set It is determined as a curve according to the specific situation of dust accumulation, or an inclined shape of "ㄑ".

At this time, the second exhaust port 146 doubles as the first dust pouring port for pouring out the dust in the first dust containing portion 105 a. In addition, the third dust outlet 147 also serves as the second dust outlet for dumping the dust in the second dust containing portion 105b. Also, the dust accumulated in the connecting passage 145 is exhausted through the first exhaust port 144 . The openings of the first exhaust port 144 , the second exhaust port 146 , the third exhaust port and the pocket 162 are all disposed on the side of the filter frame 140 . That is, when dust is poured out, the dust accumulated in the connecting passage 145, the first dust containing part 105a, the second dust containing part 105b, and the pocket 162 can all be poured out due to one action, thereby reducing the use of the dust. While increasing the number of times of cleaning, an electric vacuum cleaner with a cyclone-separated dust collection part that is easy to distinguish the parts to be cleaned can be realized.

In this embodiment, the filter A106a, the filter B106b, and the filter C106c are partitioned and formed in a common cover, that is, the filter frame 140. In addition, when using a mesh filter in the above-mentioned filter A106a, filter B106b, and filter C106c, when using a mesh with a mesh number of about 100 to 400 per inch, the mesh can be set from 30 μm to About 200μm. When using a metal mesh, or a flat plate with micro holes, etc., the mesh size can be set to about 30 μm to 200 μm. As the exhaust hole 133 provided in the cylindrical part 134, a hole with a diameter of approximately 1 mm to 2 mm, or a mesh filter with a mesh size of 1 mm to 2 mm can be used. This is because, in order to prevent dust from overflowing from the first dust containing part 105a when the vacuum cleaner main body 1 is moved when the operation is stopped, for example, relatively large rubbish such as pebbles, fiber clusters, etc. enter the second dust receiving part through the exhaust hole 133. In the two separation chambers 114, so make the mesh of this size.

In addition, if the above-mentioned filter A106a, filter B106b and filter C106c are insert-molded on the filter frame 140 using a common material, it can be easily manufactured and the cost can be reduced.

In addition, if the ratio of the mesh or opening of the filter A106a is made larger than that of the filter B106b and the filter C106c, even if the dust accumulates in the first dust containing part 105a and the second dust containing part 105b, but from The separation chamber 104 starts to pass through the exhaust hole 133 of the inner cylinder 131, the connecting channel 145 and the first exhaust port 144, and then the airflow flowing out from the filter A106a, because the filter A106a is difficult to be blocked by dust, the ventilation resistance is also low. If it does not increase, the decrease in the volume of air flowing into the inflow portion 115 can be reduced.

At this time, by means of the elastic body seal A140a that ensures the airtightness between the dust collecting case 195 and the filter frame 140; The elastomer seal B140b on the wall A109a of part 105b; The dust collection housing 105 is crimped on the elastomer seal C140c on the wall B109b that separates the second dust containing part 105b and the connecting passage 145; The first dust containing part 105a, the second dust containing part 105b and the elastomer seal D140d arranged on the partition C109c of the pocket of the lower part of the connecting passage 145; separate the filter A106a from the filter B106b and the filter C106c, In order to prevent dust from overflowing from the first dust containing part 105 a and the second dust containing part 105 b and the connecting channel 145 . In addition, the dust is prevented from flowing into other places and the pocket 162 from the first dust containing part 105 a , the second dust containing part 105 b and the connecting channel 145 through such a divided flow channel.

In addition, the area of the filter B106b through which the air flowing from the first dust accommodating portion 105a which accumulates the most dust passes is made larger than the area of the filter A106a through which the air flowing from the connecting passage 145 passes. In this way, the flow velocity of the air passing through the filter B106b communicating with the first dust containing portion 105a where much dust is accumulated can be reduced. Thus, dust scraped off from the filter B106b can be reduced. Also, since the pressure loss of the air passing through the filter B106b can be reduced, the vacuum cleaner has the feature of further increasing the suction power.

In addition, even if centrifugal separation cannot be carried out in the separation chamber 104, under the situation that the fine fiber dust flows to the above-mentioned exhaust hole 133, since this exhaust hole 133 is a hole with a diameter of about 1 mm to 2 mm, the fiber dust can pass through this The exhaust hole 133, the exhaust hole 133 will not be blocked by dust, and the ventilation resistance of the airflow flowing into the connecting channel 145 from the separation chamber 104 will not increase, so the reduction of the suction air volume of the vacuum cleaner can be prevented, and the same can still be maintained. attraction.

In addition, dust passing through the exhaust hole 133 may also be collected by the filter A 106 a and the second filter 161 . In addition, when pouring out the dust in the dust collecting case 105, since the user pours out the dust after opening the filter frame 140, it is possible to visually confirm that the dust is attached to these filters A106a and filter The dust on the filter B106b and the filter C106c and the pollution of the filter can be cleaned in time when the pollution is serious.

When the fine fiber dust that can not be separated in the separation chamber 104 flows to the connecting channel 145 from the connection port 120, a vortex is generated due to sharp expansion, because these fine fiber dust will be far away from the connection port 120 of the filter A106a , That is, it accumulates from the top of the filter A106a, so the dust will not adhere to the main domain, that is, the part near the connection port 120 of the filter A106a. In this way, since the ventilation resistance of the air flowing out from the connection port 120 after passing through the separation chamber 104 is not increased, it is possible to prevent the reduction of the suction air volume of the vacuum cleaner, and it has the advantage of continuously maintaining the suction force.

In addition, when fiber dust and the like passing through the connection port 120 accumulate on the filter A106a, the fiber dust is squeezed by the air flow, and is in a state of being accumulated and compressed on the filter A106a. At this time, when these fibrous dusts become agglomerates exceeding a certain weight, in order to dump the dust, since the impact force is applied to the above-mentioned fibrous dusts when the filter frame 140 is opened, the above-mentioned fibrous dusts are peeled off from the filter A106a, So these fibrous dust can be poured out. As a result, the ventilation resistance of the filter A106a is reduced, and the suction air volume of the vacuum cleaner is restored, and the suction force is also restored.

In addition, although the cylinder portion 134 integrally formed with the inner cylinder cover 152 can be disassembled from the separation chamber 104 and cleaned with the brush 168 for cleaning, it is difficult for dust to adhere to the exhaust hole 133 of the cylinder portion 134. Therefore, when the user throws away the dust, the filter A106a, the filter B106b and the filter C106c integrated with the filter frame 140 can usually be cleaned, which can achieve labor-saving effect.

In addition, since the filter A106a, the filter B106b, and the filter C106c are dyed in a color different from that of the dust, for example, yellow, the user can visually confirm that the dust is attached to the filter A106a. And the situation on the above-mentioned filter B106b and the above-mentioned filter C106c, so it can be found early that fiber dust and dust etc. adhere to and clog the above-mentioned filter A106a, the above-mentioned filter B106b and the above-mentioned filter C106c, so as to clean up early.

In this embodiment, when antistatic treatment is performed on the above-mentioned filter A106a, above-mentioned filter B106b and above-mentioned filter C106c, the dust adhering to these filters can be easily peeled off, which is convenient for cleaning. In addition, if the above-mentioned filter A106a, the above-mentioned filter B106b, and the above-mentioned filter C106c are subjected to water-repellent treatment, the cleaning performance at the time of washing these filters with water can be improved. In addition, by means of evaporating a conductive film, that is, an indium tin oxide film (ITO film-Indium TinOxide), or welding, or sputtering, on the upstream side of the above-mentioned filter A106a, the above-mentioned filter B106b and the above-mentioned filter C106c When plating is applied, when the dust attached to these filters is poured out, the dust can be easily separated from these filters.

As shown in Figures 6 and 7, the filter frame 140 is designed to be able to rotate around the switch shaft 143 arranged at its lower part. tightly crimped together. On the downstream side of the filter A106a, the filter B106b, and the filter C106c, a filter frame 163 is provided, and when the filter frame 140 and the filter frame 163 are closed, both are pressed together in an airtight state. The filter frame 163 is designed to be centered on the switch shaft 143 arranged at the bottom of the filter frame 140 and rotate on the same central axis as the filter frame 140 . Here, since the stopper part 142a utilizes spring pressure to combine the stopper part 142a with the joint part 163a, the combination of the filter frame 140 and the filter frame 163 can keep the dust collecting case 105 side airtight. state. In addition, the shape of the stop portion 142a and the coupling portion 163a can be made into a hook shape.

On the top of the filter frame 163, a button 142 is provided near the handle 123. By pressing this button 142, the stopper part 142a is pressurized, so that the stopper part 142a is opened with the joint part 163a arranged on the filter frame 163, The filter frame 140 and the filter frame 163 are then opened so that dust can be poured out. Here, when the dust collecting case 105 is installed on the vacuum cleaner main body 1, in order not to interfere with the upper case 150 and the upper cover 102 when the button 142 is pressed, the button 142 is designed to move along the horizontal direction.

The second filter 161 is integrally formed with the filter frame 163 . The second filter 161 is made of filter material into pleats, and the direction of the protruding fold lines on the pleats is a direction substantially perpendicular to the ground. On this second filter 161, when the following various materials are used, very fine dust can be collected, that is: non-woven fabrics that can be washed, filter paper that can be washed, by these materials and melt-blown materials Or the combination of PTFE (polytetrafluoroethylene) membrane and other materials. In addition, when using PTFE (polytetrafluoroethylene) membrane, if thermal welding or bonding is used, the mesh filter is arranged on the upstream side of the PTFE membrane, which can not only protect the PTFE membrane, but also facilitate the detachment of dust. Also, it would be even better if the water-repellent treatment can shorten the drying time when washing with water. Furthermore, on the second filter 161, at the top of the protrusion on the downstream side, there is provided a reinforcing portion 166 made of plastic integrally formed with the second filter 161 . In addition, the reinforcement portion 166 is not provided on the entire raised portion, but only in the vicinity of the dust removal spring 170 facing the dust removal device 164 . In this way, the vibration caused by the dust removal spring 170 to the second filter 161 can be easily transmitted to the entire second filter 161, thereby improving the dust removal ability of the second filter 161. In addition, since the reinforced portion 166 made of plastic is provided on the convex top of the downstream side of the second filter 161, a decrease in the effective area of the filter and thus an increase in the ventilation resistance can be prevented. Here, since the reinforcing part 166 is subjected to the impact force and friction force caused by the dust removal spring 170, if POM (polyoxymethylene) is used, since its friction and wear performance is excellent, it can improve long-term sliding characteristics and fatigue resistance. Thereby, the reduction of dust removal performance can be prevented.

In addition, although the air flowing out of the first exhaust port 144, the air flowing out of the second exhaust port 146 and the air flowing out of the third exhaust port 147 all pass through the second filter 161, it is not necessary to filter this second filter 161. The filter 161 divides each flow channel. Thus, the above-mentioned second filter 161 can perform dust removal with one dust removal portion. In addition, since the air flowing out from the first exhaust port 144, the air flowing out from the second exhaust port 146, and the air flowing out from the third exhaust port all pass through the second filter 161, it is different from the setting divisions. Compared with the filter with multiple flow channels, the use of a second filter 161 can increase the flow channel area, thereby delaying the clogging of the filter. Also, the ratio of the air volume of the air flowing out from the first exhaust port 144 to the air volume of the air flowing out from the second exhaust port 146 and the air volume of the air flowing out from the third exhaust port varies with the dust collecting case 105. The amount of dust inhaled varies. Because the second filter 161 is to make the filter material into a pleated shape, the direction of the protruding fold line on the pleats is a direction substantially perpendicular to the ground, thereby flowing out of the first exhaust port 144 and the second exhaust port 146 and The air in the third exhaust port 147 can also pass through the second filter 161 while passing between the protrusions of the second filter 161 . In addition, since the above various air volumes pass through a second filter 161 after merging and mixing, the flow velocity of the air passing through the filter will not be too large, thereby preventing the increase of ventilation resistance, and the filter Reduced dust collection efficiency.

A dust removal spring 170 is installed on the dust removal device 164, and the dust removal device 164 is rotated by pulling a power cord wound on a winding roller (not shown). At the same time, the dust removal spring 170 hits the reinforced portion 166 of the second filter 161 in sequence. Here, the dust removal spring 170 is deformed toward the rotation direction centered on the axis of the dust removal spring 170, and repeatedly hits the reinforcement part 166 of the second filter 161, and after hitting the reinforcement part 166, it passes over the reinforcement part 166 again. The portion 166 hits the reinforcing portion 166 disposed on the adjacent protrusion. As a result, the dust removal spring 170 makes the second filter 161 vibrate, and due to this vibration, the dust attached to the second filter 161 can be peeled off. Here, a part of the filter frame 163 combined with the lower portion of the second filter 161 has a zigzag shape substantially in line with the recesses of the pleats of the second filter 161 . In addition, this lower part is made into the shape which closed the downstream side and the lower side of the filter frame 163, and opened the upstream side. In addition, the dust collecting case 105, by means of the wall portion 109c, provides the pocket 162 at the lower portion of the connecting passage 145 and the first dust containing portion 105a and the second dust containing portion 105b.

Here, a lower end portion of the second filter 161 is disposed above a lower end portion of the filter frame 140 . Therefore, the dust peeled off from the filter surface of the second filter 161 can easily pass between the protrusions of the second filter 161 and move to the pocket 162 below the dust collecting housing 105. One side, then just accumulate in this pocket 162.

In addition, the dust removal work can also be performed after the dust is poured out. In this case, the dust falling into the inlet side of the pocket 162 will be removed by the airflow flowing through the second exhaust port 146 during the next operation of the vacuum cleaner. The vortex of the secondary flow formed on the inlet portion of the pocket 162 transports the dust to the deep part of the pocket 162, and can prevent flying of the dust. In addition, because the density of the dust is higher than that of the air, due to inertia, the dust cannot make a sharp turn with the vortex formed by the secondary flow of the air flow, and has to flow to the deep part of the pocket 162, so the dust starts from the deep part of the pocket 162 accumulate.

In addition, when actually cleaning, before and after cleaning, when the cleaner body 1 is moved, the dust is peeled off from the second filter 161 due to impact on the cleaner body 1, but even if such dust falls To the bottom, as explained above, will be transported into the pocket 162 on the next cleaner run. Therefore, even if the dust removal device 164 is not installed, since the pocket 162 is provided, the dust peeled off from the surface of the filter will accumulate in the pocket 162, so the re-flying of the dust can be suppressed. In addition, although this pocket 162 is in the below of the connecting channel 145 and the first dust containing part 105a and the second dust containing part 105b, since it can extend far away from the second filter 161 and has depth, even if the height The size in the direction is not large, and the dust holding capacity can also be made large.

The cleaning of the second filter 161 is to make the filter frame 140 and the filter frame 163 in an open state, and use the brush 168 for cleaning to dry-clean or clean the surface of the second filter 161 including the dust collecting housing 105. Just wash with water. In addition, if the height of the bristle portion of the brush 168 used for cleaning is made higher than the height of the protrusion on the pleats of the second filter 161, since the bristle portion can reach the concave portion on the pleats of the second filter 161, So it can brush away the deep dust.

At this time, if you want to further remove dust from the second filter 161, you can contact the handle 168a of the brush 168 for cleaning with the reinforcing part 166, align the brush 168 for cleaning with the guide rail 169, move it to the left and right, and knock it. The second filter 161 is sufficient. In addition, the brush 168 used for cleaning is provided with a hook 168. When it is mounted on the dust collecting housing 105 as shown in Figure 5, the user can easily remove the brush 168 when cleaning, and It is also not easy to lose.

On the outer peripheral side of the filter frame 163, there is an elastic seal portion 172 integrally formed with the filter frame 163, which is crimped on the filter frame 113 containing the auxiliary filter 112 arranged in front of the electric blower 107, Keep it airtight. In addition, when the dust collecting case 105 is housed in the vacuum cleaner main body 1, the elastic sealing portion 172 is not in the vertical direction, but is arranged so that its upper side is inclined toward the electric blower 107 side. Therefore, by pressing the dust-collecting case 105 into the main body 1 of the vacuum cleaner, an airtight effect can be easily obtained, and the assembly and disassembly of the dust-collecting case 105 to the main body 1 of the vacuum cleaner is also very convenient. Also, since the elastic sealing portion 172 of the filter frame 163 and the filter frame 140 are both airtight, there is also an effect of reducing the number of sealing parts.

Here, since the inflow portion 115 of the separation chamber 104 is arranged below, the first communication port 117 and the second communication port 118 can be arranged on the upper part, and since the inflow portion 115 entering the first dust containing portion 105a and the second dust containing portion 105b Dust falls due to gravity, so it can be prevented from falling into the separation chamber 104 .

In addition, since the first communication port 117 is arranged in front of the dust collecting case 105, and the second communication port 118 is arranged in front of the second dust containing part 105b, so when the vacuum cleaner main body 1 is erected and stored, the second communication port 118 A communicating port 117 is located above the first dust containing portion 105a, and a second communicating port 118 is located above the second dust containing portion 105b. As a result, the dust accumulated in the first dust accommodating portion 105 a can be prevented from falling into the separation chamber 104 , and the dust accumulated in the second dust accommodating portion 105 b can be prevented from falling into the separation chamber 104 .

In addition, since the first dust accommodating portion 105a and the second dust accommodating portion 105b are arranged on the sides of the separation chamber 104, the height of the cleaner main body 1 is not increased, and the length of the separation chamber 104 in the length direction can be lengthened. It has the feature of improving the ability to separate dust through swirling flow.

Claims (3)

1. electric dust collector, it has following each several part: the inflow part that flows into dust laden air; The separation chamber that dust is separated from the dust laden air that this inflow part flows into; The first dust holding portion that holds the dust of separating by this separation chamber; First connected entrance that is communicated with this first dust holding portion and above-mentioned separation chamber; First exhaust outlet that the air stream of discharging from above-mentioned separation chamber is discharged; Second exhaust outlet that the air of discharging from the above-mentioned first dust holding portion is discharged; It is characterized in that it also has:

Hold dust, and the second dust holding portion that is arranged with the above-mentioned first dust holding portion branch;

In above-mentioned separation chamber, be communicated with this second dust holding portion and above-mentioned separation chamber, and second connected entrance that is arranged with the above-mentioned first connected entrance branch;

And the 3rd exhaust outlet that is arranged at the discharge air of the above-mentioned second dust holding portion.

2. electric dust collector as claimed in claim 1 is characterized in that, above-mentioned second connected entrance partly disposes by upside than above-mentioned inflow on above-below direction.

3. electric dust collector as claimed in claim 1 or 2 is characterized in that columnar wall is made in the bottom of above-mentioned second connected entrance.

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