CN220876654U - Dust cup structure and vacuum cleaner - Google Patents

Abstract

The utility model discloses a dust cup structure and a dust collector, wherein the dust cup structure comprises: the dust cup comprises a dust cup main body and a filtering device, wherein a cyclone channel, a cyclone cavity and a collecting cavity are formed in the dust cup main body; the cyclone channel is spirally arranged at the lower side of the cyclone cavity, one end of the cyclone channel is provided with an air inlet, and the other end of the cyclone channel is communicated with the cyclone cavity; the collecting cavity is positioned at the outer side of the cyclone cavity, and the upper side of the cyclone cavity is communicated with the collecting cavity; the filtering device is arranged at the dust cup main body and is positioned at the upper side of the cyclone cavity, and air flows out through the filtering device; when the cyclone dust collector is used, mixed air enters from the air inlet of the cyclone channel and cuts into the cyclone cavity at a certain angle, the mixed air rotates to the top in the cyclone cavity at a high speed, dust particles are separated out of the cyclone cavity and fall into the collecting cavity by self weight, air is extracted from the center of the cyclone cavity, and flows outwards through the filtering device; dust particles in the mixed airflow can be effectively collected, and meanwhile, the dust particles are prevented from blocking the filtering device, and the normal exhaust use of the dust collector is prevented from being influenced.

Description

Dust cup structure and vacuum cleaner

Technical Field

The utility model relates to the technical field of vacuum cleaners, and more particularly to a dust cup structure and a vacuum cleaner.

Background technique

In the prior art, the dust cup part of a handheld vacuum cleaner is mainly composed of a collection chamber, a cyclone filter, and a HEPA filter (HEPA) assembly. Dust and air are sucked in from the side of the dust cup and rotate along the outer wall of the filter. The dust eventually falls into the collection chamber. The dust and air have not reached a dust-gas separation state, and filtering is mainly carried out by the HEPA filter.

The HEPA filter is a highly efficient filter paper that can filter most of the fine particles in the air, allowing the air that passes through the vacuum cleaner to be discharged after being purified, reducing secondary pollution. However, when the dust is inhaled and passes through the HEPA filter, the dust can easily clog the HEPA, causing the product performance to deteriorate quickly, failing to meet the user's needs and resulting in a poor experience.

Utility Model Content

In view of this, the utility model provides a dust cup structure and a vacuum cleaner.

In order to achieve the above-mentioned objectives, the first aspect of the utility model discloses a dust cup structure, including: a dust cup body and a filtering device, a cyclone channel, a cyclone chamber and a collecting chamber are formed inside the dust cup body; the cyclone channel is spirally arranged on the lower side of the cyclone chamber, one end of the cyclone channel is set as an air inlet, and the other end is connected with the cyclone chamber; the collecting chamber is located outside the cyclone chamber, and the upper side of the cyclone chamber is connected with the collecting chamber; the filtering device is installed on the dust cup body and is located on the upper side of the cyclone chamber, and the airflow flows out through the filtering device.

As a preferred solution of the present invention, the inner wall of the cyclone chamber is arranged in an arc shape, which effectively guides the mixed airflow to rotate and rise at a high speed in the cyclone chamber, so as to achieve the purpose of throwing the dust particles outward for collection.

As a preferred solution of the utility model, a first angle is formed between the inner wall of the cyclone chamber and the horizontal plane, and the first angle is 70° to 90°.

As a preferred solution of the present invention, the inner diameter of the cyclone chamber gradually increases from the lower side to the upper side.

As a preferred solution of the utility model, the dust cup body includes:

a first shell member, wherein the cyclone passage is formed inside the first shell member;

A second shell member is longitudinally arranged on the first shell member, and the second shell member is in a sleeve shape and forms the cyclone chamber inside;

The third shell member is longitudinally arranged on the first shell member. The third shell member is in a sleeve shape and is sleeved outside the second shell member. The collecting chamber is formed between the second shell member and the third shell member.

As a preferred solution of the present invention, the second shell member extends into the interior of the first shell member, a cyclone chamber air inlet is opened on the side of the second shell member, the cyclone chamber air inlet is located inside the first shell member and connected to the cyclone channel.

As a preferred solution of the utility model, a cyclone hood is installed on the upper side of the dust cup body, and the cyclone hood is provided with a cyclone hood air outlet, which is directly opposite to the center of the cyclone chamber; the filter device is installed at the cyclone hood.

As a preferred solution of the present invention, the height of the second shell component is smaller than that of the third shell component.

As a preferred solution of the present invention, the air inlet is arranged on the side of the first shell member, and a dust cup release buckle is arranged on the bottom of the first shell member.

The second aspect of the utility model provides a vacuum cleaner, comprising a vacuum cleaner body, in which the dust cup structure is installed.

It can be seen from the above technical solutions that, compared with the prior art, the utility model has the following beneficial technical effects:

1. When the utility model is in use, the mixed airflow with dust particles enters from the air inlet of the cyclone channel, and cuts into the cyclone chamber at a certain angle after flowing along the cyclone channel. The mixed airflow rotates at high speed along the inner wall of the cyclone chamber to the top in the cyclone chamber. In this process, under the action of centrifugal force, the dust particles in the mixed airflow will be thrown to the inner wall of the cyclone chamber, and the dust particles rotate at high speed along the inner wall of the cyclone chamber to the upper side of the cyclone chamber. The dust particles are separated from the cyclone chamber and fall into the collection chamber by their own weight, while the air is extracted from the center of the cyclone chamber and then flows out through the filtering device; the dust particles in the mixed airflow can be effectively collected, and at the same time, the dust particles can be prevented from blocking the filtering device and affecting the normal exhaust use of the vacuum cleaner;

2. The utility model is provided with a filter device on the upper side of the dust cup body. After the mixed airflow collects dust particles by rotating, the airflow is filtered again by the filter device and then discharged to the outside, so as to purify the air better.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

FIG1 is a schematic diagram of the dust cup structure of the utility model;

FIG2 is an exploded view of the dust cup structure of the present invention;

FIG3 is a cross-sectional schematic diagram of the dust cup structure of the present invention;

FIG4 is a combined view of the first shell member and the second shell member in the dust cup structure of the present invention;

FIG5 is a schematic diagram of a cyclone passage in the first shell member in the dust cup structure of the present invention;

FIG6 is a schematic diagram of a first shell member and a second shell member in the dust cup structure of the present invention from a bottom perspective;

FIG. 7 is a schematic cross-sectional view of the vacuum cleaner of the present invention.

Description of reference numerals:

Mixed air flow 00; dust cup body 100; cyclone channel 101; air inlet 1011; cyclone chamber 102; collection chamber 103;

The first shell member 110; the second shell member 120; the cyclone chamber air inlet 121; the third shell member 130; the cyclone cover 140; the air guide sleeve 141; the cyclone cover air outlet 1411; the sealing ring 142; the dust cup release buckle 150; the base 160; the filter device 200; the vacuum cleaner body 300; the air suction channel 301; the suction assembly 310.

Detailed ways

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

A dust cup structure, as shown in Figures 1-6, includes: a dust cup body 100 and a filter device 200. The dust cup structure of the utility model is mainly used to effectively separate the dust particles and air in the mixed airflow in the dust cup body 100. The dust particles are collected in the dust cup body 100, and the air is filtered by the filter device 200 and then discharged to the outside. In this way, it can effectively reduce/prevent dust particles from clogging the filter device 200 during filtering, thereby ensuring product performance.

Specifically, a cyclone channel 101 , a cyclone chamber 102 and a collection chamber 103 are formed inside the dust cup body 100 .

The cyclone channel 101 is spirally arranged on the lower side of the cyclone chamber 102, one end of the cyclone channel 101 is set as an air inlet 1011, and the other end is connected with the cyclone chamber 102; the collecting chamber 103 is located outside the cyclone chamber 102, and the upper side of the cyclone chamber 102 is connected with the collecting chamber 103; the filtering device 200 is installed on the dust cup body 100 and is located on the upper side of the cyclone chamber 102, and the air flow flows out through the filtering device 200.

The dust cup structure is applied to a vacuum cleaner, and the mixed airflow sucked from the air inlet 1011 of the cyclone channel 101 contains air and dust particles, collectively referred to as mixed airflow 00;

After the mixed air flow 00 is sucked in from the air inlet 1011, it flows through the cyclone channel 101, and the mixed air flow 00 rotates and flows into the cyclone chamber 102 at a certain angle. The inner wall of the cyclone chamber 102 is arranged in an arc shape, so there is a continuous mixed air flow 00 entering from the air inlet 1011. After the mixed air flow 00 enters the cyclone chamber 102, it rotates and rises along its arc-shaped inner wall. Under the action of centrifugal force, the dust particles rise along the inner wall of the cyclone chamber 102. When they rise to the top of the cyclone chamber 102, they are thrown out of the cyclone chamber 102 and thrown to the collecting chamber 103. The dust particles descend under the action of their own gravity and are collected in the collecting chamber 103, and the air is drawn out from the center of the cyclone chamber 102 and discharged after being filtered by the filter device 200. In this way, before passing through the filter device 200, the dust particles in the mixed air flow 00 are separated from the air to reduce the adhesion of dust particles to the filter device 200.

The filtering device 200 may be a HEPA filter, which can further purify the air before discharging it.

Further, as shown in Figure 6, in the process of the mixed airflow 00 entering the cyclone chamber 102 from the air inlet 1011, the mixed airflow 00 cuts into the cyclone chamber 102 from the cyclone channel 101 at a certain angle, so that the mixed airflow 00 continues to rotate in the cyclone chamber 102 along the inside of the cyclone chamber 102, thereby achieving the purpose of separating dust particles from air through centrifugal force.

Furthermore, as shown in FIG3 , a first angle α is formed between the inner wall of the cyclone chamber 102 and the horizontal plane, and the first angle α is 70° to 90°. In this embodiment, the inner diameter of the cyclone chamber 102 gradually increases from the lower side to the upper side, thereby better simulating the tornado effect and separating the dust particles from the air.

Furthermore, specific values of the first angle α can be 70°, 75°, 80°, 85°, 87°, or 90°.

Continuing with FIG3 , the inner diameter of the cyclone chamber 102 gradually increases from the bottom to the top, while the width of the collecting chamber 103 gradually decreases from the bottom to the top. When the dust cup structure is installed in the vacuum cleaner, under the suction of the suction motor, air is sucked in along the direction of the straight arrow in FIG3 , and the dust particles are thrown to the collecting chamber 103 under the action of centrifugal force and fall under the action of gravity. Since the width of the collecting chamber 103 gradually decreases from the bottom to the top, under the suction of the suction motor, the dust that has been collected in the collecting chamber 103 is difficult to be sucked out again.

In one embodiment, the dust cup body 100 includes:

A first shell member 110, wherein the cyclone passage 101 is formed inside the first shell member 110;

The second shell member 120 is longitudinally arranged on the first shell member 110, and the second shell member 120 is in a sleeve shape and the cyclone chamber 102 is formed inside;

The third shell member 130 is longitudinally arranged on the first shell member 110 . The third shell member 130 is in a sleeve shape and is sleeved outside the second shell member 120 . The collecting chamber 103 is formed between the second shell member 120 and the third shell member 130 .

Further, as shown in FIGS. 3-5 , the second shell member 120 extends into the interior of the first shell member 110 , and a cyclone chamber air inlet 121 is provided on the side of the second shell member 120 , and the cyclone chamber air inlet 121 is located inside the first shell member 110 and communicates with the cyclone channel 101 ;

The second shell member 120 is sleeve-shaped. In this embodiment, it is designed as a conical sleeve, which is wide at the top and narrow at the bottom. The lower end of the second shell member 120 extends into the inside of the first shell member 110, and the cyclone channel 101 is distributed around the outer side of the second shell member 120, and corresponds to the lower side of the cyclone chamber 102.

It can be understood that in order to make the dust cup structure compact and save volume, the first shell member 110 can be a cylindrical shell, and the second shell member 120 is installed on the first shell member 110 and is coaxially arranged with the first shell member 110. Then, the inner wall of the first shell member 110 and the side wall portion of the lower side of the second shell member 120 extending into the first shell member 110 together enclose the cyclone channel 101.

Furthermore, the cyclone chamber air inlet 121 is disposed on the side of the second shell member 120 , so that the rotating mixed airflow 00 can better cut into the cyclone chamber 102 and continue to rotate and rise along the inner wall of the cyclone chamber 102 .

The first shell member 110 and the second shell member 120 may be an integrally formed structure, or may be fixed by induction welding.

Furthermore, the third shell member 130 is sleeved outside the second shell member 120 , the bottom of the third shell member 130 is supported at the end surface of the first shell member 110 , and the second shell member 120 and the third shell member 130 are coaxially arranged.

The third shell member 130 is preferably welded and fixed to the first shell member 110 by induction welding or is integrally formed with the first shell member 110; and optionally, the third shell member 130 and the first shell member 110 are split structures, and can be connected by threaded rotation connection, rotation lock connection, etc. In order to enhance the sealing performance, a sealing ring can be added between the third shell member 130 and the first shell member 110;

If the third shell member 130 and the first shell member 110 are a split structure, it is convenient to completely clean the entire collection chamber 103 after removing the third shell member 130; however, this will make the product structure more complicated and increase the volume of the product.

In one embodiment, a cyclone cover 140 is installed on the upper side of the dust cup body 100 , and the cyclone cover 140 is provided with a cyclone cover air outlet 1411 , and the cyclone cover air outlet 1411 is directly opposite to the center of the cyclone chamber 102 ; the filter device 200 is installed at the cyclone cover 140 .

As shown in FIG. 2 and FIG. 3 , the lower part of the cyclone cover 140 is partially sleeve-shaped, which can be covered on the upper side of the dust cup body 100. Specifically, the lower part of the cyclone cover 140 is covered outside the upper side of the third shell member 130, and buckles and slots are correspondingly provided between the inner wall of the cyclone cover 140 and the outer wall of the third shell member 130 to achieve a stable connection;

In addition, a sealing ring 142 is provided between the cyclone cover 140 and the third case member 130 to enhance the sealing performance.

The upper part of the cyclone cover 140 forms a position for assembling the filter device 200, and the interior of the cyclone cover 140 is connected from top to bottom. As shown in FIG. 3 , an air guide sleeve 141 is formed at the center of the cyclone cover 140, and the cyclone cover air outlet 1411 is formed in the air guide sleeve 141.

The air guide sleeve 141 is coaxially arranged with the cyclone chamber 102 , and the air guide sleeve 141 extends toward the cyclone chamber 102 but does not extend into the cyclone chamber 102 , so as to effectively guide air into the cyclone cover air port 1411 and then be filtered by the filter device 200 .

In one embodiment, as shown in Figures 3 and 7, at the dust cup body 100, the third shell member 130 is higher than the second shell member 120, then the mixed airflow 00 rotates and rises in the cyclone chamber 102 in the direction of the arc arrow in Figure 3, and when it rises to the top of the second shell member 120 and continues to move upward, the dust particles lose the support of the inner wall of the second shell member 120 and are thrown outward to the inner wall of the third shell member 130. The air is drawn out from the center of the cyclone chamber 102 as shown in the direction of the straight arrow in Figure 3 and flows to the filter device 200, and the dust particles are collected in the collection chamber 103 under gravity.

In one embodiment, the air inlet 1011 is disposed on the side of the first shell member 110, and a dust cup release buckle 150 is disposed at the bottom of the first shell member 110. As shown in FIG2 and FIG3 , a base 160 is disposed below the first shell member 110, and the base 160 and the first shell member 110 can be welded and fixed, and the base 160 and the dust cup release buckle 150 are mainly used to facilitate the installation of the dust cup structure in the vacuum cleaner.

A vacuum cleaner, as shown in FIG7 , includes a vacuum cleaner body 300 , in which the dust cup structure is installed. The dust cup structure is detachably installed on the vacuum cleaner body 300 via a dust cup release buckle 150 , so that the dust cup structure can be removed and cleaned conveniently.

In this embodiment, the vacuum cleaner is mainly a handheld vacuum cleaner, and an air intake channel 301 and a suction assembly 310 are arranged inside the vacuum cleaner body 300. A cleaning brush is arranged at the air inlet end of the air intake channel 301, and the cleaning brush is a structure such as a brush. The air outlet end of the air intake channel 301 is connected to the air inlet 1011 of the dust cup body 100; and the suction assembly 310 is installed corresponding to the dust cup structure, mainly connected accordingly with the cyclone cover 140 in the dust cup structure, so that the air in the dust cup body 100 flows to the suction assembly 310 through the filter device 200.

The suction assembly 310 includes at least a suction motor. When the suction motor is running, the dust cup body 100 is vacuumed to form a negative pressure. The mixed air flow 00 is sucked into the air inlet 1011 of the dust cup body 100 through the suction channel 301, and cuts into the high-speed cyclone in the cyclone chamber 102 at a certain angle through the cyclone channel 101. When the cyclone reaches a certain angle, the dust particles are separated from the air, and the dust particles cyclone along the inner wall of the cyclone chamber 102 at high speed (similar to a tornado) to the top. The dust particles are separated from the cyclone chamber 102, and the dust particles fall into the collection chamber 103 by their own weight. The air is drawn out from the center of the cyclone chamber 102, and then filtered by the filter device 200. The air is discharged through the fan outlet in the suction motor.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A dust cup structure, characterized in that it comprises: a dust cup body and a filtering device, wherein a cyclone channel, a cyclone chamber and a collecting chamber are formed inside the dust cup body; the cyclone channel is spirally arranged on the lower side of the cyclone chamber, one end of the cyclone channel is set as an air inlet, and the other end is connected with the cyclone chamber; the collecting chamber is located outside the cyclone chamber, and the upper side of the cyclone chamber is connected with the collecting chamber; the filtering device is installed on the dust cup body and is located on the upper side of the cyclone chamber, and the airflow flows out through the filtering device. 2. A dust cup structure according to claim 1, characterized in that the inner wall of the cyclone chamber is arc-shaped. 3. A dust cup structure according to claim 2, characterized in that a first angle is formed between the inner wall of the cyclone chamber and the horizontal plane, and the first angle is 70° to 90°. 4. A dust cup structure according to claim 3, characterized in that the inner diameter of the cyclone chamber gradually increases from the lower side to the upper side. 5. A dust cup structure according to any one of claims 1 to 4, characterized in that: the dust cup body comprises: a first shell member, wherein the cyclone passage is formed inside the first shell member; A second shell member is longitudinally arranged on the first shell member, and the second shell member is in a sleeve shape and forms the cyclone chamber inside; The third shell member is longitudinally arranged on the first shell member. The third shell member is in a sleeve shape and is sleeved outside the second shell member. The collecting chamber is formed between the second shell member and the third shell member. 6. A dust cup structure according to claim 5, characterized in that: the second shell member extends into the interior of the first shell member, a cyclone chamber air inlet is opened on the side of the second shell member, the cyclone chamber air inlet is located inside the first shell member and is connected to the cyclone channel. 7. A dust cup structure according to claim 5, characterized in that: a cyclone cover is installed on the upper side of the dust cup body, the cyclone cover is provided with a cyclone cover air outlet, and the cyclone cover air outlet is directly opposite to the center of the cyclone chamber; and the filter device is installed at the cyclone cover. 8. A dust cup structure according to claim 7, characterized in that the height of the second shell member is smaller than that of the third shell member. 9. A dust cup structure according to claim 5, characterized in that: the air inlet is arranged at the side of the first shell member, and a dust cup release buckle is arranged at the bottom of the first shell member. 10. A vacuum cleaner, comprising a vacuum cleaner body, characterized in that the vacuum cleaner body is equipped with a dust cup structure as described in any one of claims 1 to 9.