CN209252689U - A secondary filter system and a vacuum cleaner including the same - Google Patents

Abstract

The utility model provides a secondary filter system and a vacuum cleaner comprising the same. The secondary filter system includes a dust cup, a primary filter screen, a secondary filter, a mounting seat and an air duct pipe in the dust cup. First of all, the air flow enters the dust cup directly from the air inlet at the bottom of the dust cup, and the air flow is diverted to the inner wall of the dust cup through the air duct and enters the cyclone cavity between the inner wall of the dust cup and the primary filter screen, and the air flow is in the cyclone cavity. Under the action of centripetal force, high-speed rotation realizes the separation of larger dust from the airflow and deposits on the bottom of the dust cup. The air flow first passes through the primary filter, and then passes through the secondary filter. The secondary filter is a high-efficiency air filter, which can block fine dust from entering the host, and finally achieves two effective filtration of the air flow. The air flow filtered by the above process contains less impurities, and the secondary filter is detachably installed on the mounting seat, so that the filter screen can be removed together with the dust cup, which is convenient for cleaning, and has a simple structure and cost Low.

Description

A secondary filter system and a vacuum cleaner including the same

technical field

The utility model relates to a secondary filtering system, and relates to a vacuum cleaner incorporating the secondary filtering system.

Background technique

With the continuous growth of consumers' income in my country, the living conditions of residents have been continuously improved. There are more and more duplex houses and large-area houses, and the public's demand for vacuum cleaners is also increasing. Current cyclone separators (such as Chinese Patent No. CN103607939A and existing Dyson related products) have hoods including inlet openings and discharge perforations, confining the cyclone cavity between the outer wall and the hood, and fine dust will pass through a hood. The secondary filter screen enters the host, so a multi-cone secondary filtration system should be set up in the host, and a tertiary filtration system should be set at the end of the cyclone. Although this vacuum cleaner achieves the purpose of separating fluids, the filter device is not removable and difficult to clean, and the entering of dust will affect the performance of the main unit.

Utility model content

In view of the above technical problems existing in the prior art, embodiments of the present disclosure provide a secondary filter system to prevent fine dust from entering the host and the filter screen to be detachable, thereby prolonging the life of the host.

According to the first aspect of the present disclosure, a secondary filter system is proposed, which includes a dust cup, a primary filter screen, a secondary filter and an air duct pipe in the dust cup, and the bottom of the dust cup is provided with an air inlet, and a mounting seat is provided on the side opposite to the bottom of the dust cup; the air duct pipe includes: a first pipe section that communicates with the air inlet and is axially consistent with the dust cup; and a second pipe section , the second pipe section extends toward the inner wall of the dust cup and has an opening, the opening of the opening is configured as an air outlet, and the opening is at least partially close to the inner wall of the dust cup to form a cyclone; The primary filter screen is sleeved around the first pipe section of the air duct, and forms a cyclone cavity with the inner wall of the dust cup; the secondary filter is installed to the mounting seat from the air outlet side .

In some embodiments, the mount is provided on the inner wall of the dust cup.

In some embodiments, the secondary filter is removably mounted to the mount.

In some embodiments, the mount and the air duct are integrally formed with the dust cup.

In some embodiments, the primary filter screen has a cylindrical portion, and the cylindrical portion is arranged such that its axis is aligned with the axis of the first pipe section of the air duct pipe.

In some embodiments, the secondary filter is arranged perpendicular to the axis of the dust cup.

In some embodiments, the secondary filter is a high efficiency air filter.

In some embodiments, the opening portion is tangent to the inner wall of the dust cup, so that the airflow enters the cyclone cavity tangentially from the cyclone opening to form a wall-mounted cyclone. The present disclosure also provides a vacuum cleaner, including the secondary filter system and a main unit, the main unit is arranged on the air outlet side of the secondary filter, the secondary filter system performs secondary filtration on the air, and the secondary filter is The high-efficiency air filter prevents fine dust from entering the host. The primary filter and the secondary filter are placed inside the dust cup, which can be disassembled and cleaned together with the dust cup, which is also beneficial for subsequent machine maintenance work.

Compared with the prior art, the beneficial effects of the embodiments of the present utility model are: the present disclosure can conveniently install the primary filter screen and the secondary filter inside the dust cup in a detachable manner, so as to realize that the filter screen can follow the dust cup. The purpose of being disassembled and cleaned at the same time makes it possible to thoroughly clean the device in the dust cup; and through the secondary filtration of the wind, the fine or fine particles are prevented from entering the host, and the structure is compact, simple and low cost.

Description of drawings

In the drawings, which are not necessarily to scale, the same reference numbers may describe similar parts in different views. The same reference number with a letter suffix or a different letter suffix may denote different instances of similar components. The drawings illustrate various embodiments generally by way of example and not limitation, and together with the specification and claims serve to explain the disclosed embodiments. Where appropriate, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

1 is a cross-sectional view of an assembled secondary filtration system according to an embodiment of the present disclosure;

2 is a schematic diagram of a secondary filter system in a state where the dust cup cover is opened and the filter screen is disassembled according to an embodiment of the present disclosure;

3 is a cross-sectional view of the secondary filter system in a state in which the dust cup cover is opened and the filter screen is disassembled according to an embodiment of the present disclosure.

Components denoted by reference numbers in the figures:

1- air inlet; 2- dust cup cover; 3- dust cup cover shaft; 4- primary filter; 5- dust cup; 6- secondary filter; 7- air duct; 8- mounting seat.

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present disclosure, the present disclosure will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present disclosure will be described in further detail below with reference to the accompanying drawings and specific embodiments, but are not intended to limit the present disclosure.

As used in this disclosure, "comprising" or "comprising" and similar words mean that the element preceding the word encompasses the elements listed after the word, and does not exclude the possibility that other elements are also encompassed. "Up", "Down", "Left", "Right", etc. are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

In the present disclosure, when a specific device is described as being located between the first device and the second device, there may or may not be an intervening device between the specific device and the first device or the second device. When it is described that a specific device is connected to other devices, the specific device may be directly connected to the other device without intervening devices, or may not be directly connected to the other device but have intervening devices.

All terms (including technical or scientific terms) used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, general-purpose dictionaries should be construed to have meanings consistent with their meanings in the context of the related art, and not to be construed in an idealized or highly formalized sense, unless explicitly stated herein. Defined like this.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification.

In some embodiments, FIG. 1 is a cross-sectional view of an assembled secondary filtration system according to embodiments of the present disclosure. As shown in FIG. 1 , the present disclosure provides a secondary filter system including a dust cup 5 , a primary filter screen 4 , a secondary filter 6 , and an air duct 7 in the dust cup 5 . The bottom of the dust cup 5 is provided with an air inlet 1, and the side opposite to the bottom of the dust cup 5 is provided with a mounting seat 8; a pipe section; and a second pipe section (the pipe section bent downward as shown in FIG. 1 ), the second pipe section extending toward the inner wall of the dust cup 5 and having an opening (not shown in the figure), the opening of which is configured as The air outlet of the air duct 7, and the opening part is at least partially close to the inner wall of the dust cup 5 to form a cyclone; the primary filter 4 is sleeved around the first pipe section of the air duct 7, and is connected with the dust cup. A cyclone cavity is formed between the inner walls of 5; the secondary filter 6 is installed to the mounting seat 8 from the air outlet side. The filtration process performed by the secondary filtration system of the above structure is as follows. First, the air flow enters the dust cup 5 directly from the air inlet 1 at the bottom of the dust cup 5, and the air flow is diverted to the inner wall of the dust cup 5 through the air duct 7 and enters between the inner wall of the dust cup 5 and the primary filter 4 A cyclone chamber is formed, and the airflow rotates at high speed under the action of centripetal force in the cyclone chamber to separate larger dust from the airflow and deposit on the bottom of the dust cup 5 . Note that, in this document, the air inlet side and the air outlet side of the dust cup 5 are referred to as its bottom side and top side, respectively. The airflow carrying fine dust after cyclone filtration passes through the fine pinholes of the primary filter 4 to filter the fine dust and block it in the cyclone cavity, thereby completing the primary cyclone filtration. The air flow after the primary cyclone filtration carries finer dust particles and passes through the secondary filter 6 arranged in the mounting seat 8, and the dust particles of the set particle size are prevented from being trapped in the dust cup 5 by the secondary filter 6, thereby realizing the secondary filtration. The secondary filter 6 is installed from the air outlet side to the mounting seat 8, which can filter the fine dust that is difficult to filter by the primary filter 4, and finally realizes two effective filtration of the airflow, and the airflow filtered by the above process contains less impurities. , so as to more effectively prevent impurities from entering the host and affect the service life of the host.

In some embodiments, the mount 8 is provided on the inner wall of the dust cup 5 . Specifically, the mounting seat 8 can be firmly circumferentially snapped on the inner wall of the dust cup 5 to prevent vibration and movement. In some embodiments, the mount 8 may also be integrated into the inner wall of the dust cup 5, eg by co-molding. In some embodiments, the mounting seat 8 can not only be used to fix and install the secondary filter 6, but also install the air duct 7 and the primary filter 4 on the air inlet side thereof, so as to better realize the integration of these components. Fix, install and register. Even under the high-speed rotating airflow in the cyclone chamber, the stability of the air duct 7 and the primary filter screen 4 can be maintained, thereby improving the service life of the filter system.

In some embodiments, as shown in FIG. 1 , the primary filter 4 has a bell mouth that opens toward the side of the air inlet 1 of the dust cup 5 . The bell mouth structure can prevent the fluid swirling to the bottom of the dust cup 5 from recoiling onto the primary filter screen 4. The bell mouth and the bottom of the dust cup 5 form a garbage storage cavity, which accommodates the coarse dust filtered by the cyclone, and also allows the airflow to enter smoothly. The primary filter 4 is used for filtering.

In some embodiments, the secondary filter 6 is removably mounted to the mount 8 . This facilitates the installation and removal of the secondary filter 6 (as shown in Figures 2 and 3). Through the above methods, the purpose of easy removal and cleaning of the secondary filter 6 after use can be achieved, which is beneficial to the later maintenance work of the vacuum cleaner. Specifically, the installation method of the secondary filter 6 can be connected by means of a twist or plug connection. In this way, both the primary filter screen 4 and the secondary filter 6 can be easily disassembled and installed, making it possible to thoroughly clean the internal components of the dust cup 5, so as to achieve effective filtration, facilitate the thorough cleaning of the dust cup 5 and prolong the life of the host. And the structure is compact and simple, and the cost is low.

In some embodiments, the primary filter screen 4 has a cylindrical portion, and the cylindrical portion is arranged so that its axis is aligned with the axis of the first pipe section of the air duct pipe 7 to ensure that the wind force on the primary filter screen 4 is uniform. , so that the fine dust carried in the airflow can be uniformly filtered and blocked by the pinholes throughout the primary filter screen 4 , thereby improving the filtering efficiency of the primary filter screen 4 .

In some embodiments, the secondary filter 6 is arranged perpendicular to the axis of the dust cup 5, so that the secondary filter 6 is subjected to uniform wind. The secondary filter 6 achieves the purpose of supplementing the filtering performance of the primary filter 4 . For example, the secondary filter 6 is a high-efficiency air filter, which can block fine dust from entering the main engine that is usually arranged on the air outlet side thereof, thereby prolonging the working life of the main engine.

In some embodiments, the opening part can be a small section of elbow with an air outlet, and part of the sidewall of the elbow, part of the edge of the air outlet, etc., can be in close contact with the inner wall of the dust cup 5 to form a cyclone. In some embodiments, the opening part is tangent to the inner wall of the dust cup 5, so that the air flow enters the cyclone cavity tangentially from the cyclone opening to form a wall-mounted cyclone. This is beneficial to the formation of the cyclone cavity, and is also beneficial to deposit larger dust on the bottom of the dust cup 5 . In some embodiments, the opening is provided at the end of the second pipe section of the air duct pipe 7 and is configured as a cyclone, so that the airflow can be smoothly spun out from the cyclone and avoid the situation that the cyclone is blocked.

In some embodiments, the filter device can adopt the dust cup cover 2 of various structures, and the dust cup cover 2 is used to prevent the dust in the dust cup 5 from leaking out. In some embodiments, as shown in FIG. 2 , the dust cup cover 2 and the dust cup 5 are connected in a pivoting manner (for example, via the dust cup cover rotating shaft 3 ), so that the dust cup cover 2 is closed in a pivotable manner onto or from dust cup 5. This pivotable opening and closing method is simple in structure and convenient to operate. The direction of the arrow shown in the figure is the opening and closing direction of the dust cup cover 2 . In some embodiments, the dust cup cover 2 can be fixed to the dust cup 5 by means of snap fit.

In some embodiments, referring to FIG. 2 , after the dust cup cover 2 is opened in the direction of the arrow, the primary filter 4 can be taken out from where the dust cup cover 2 is opened, and the secondary filter 6 can be taken out from the direction of the air outlet 9 .

In some embodiments, as shown in FIG. 3 , the mounting seat 8 and the air duct 7 and the dust cup 5 form an integral structure, for example, can be integrally molded from resin or plastic, which can simplify the installation of the secondary filter system by the user. operation, and can better maintain the relative positional relationship between the mounting seat 8 and the air duct 7 and the dust cup 5, so as to ensure the stable performance of the cyclone chamber.

In another preferred embodiment of the present disclosure, there is also provided a vacuum cleaner with a secondary filter system as shown in FIG. 1 and FIG. 2 , and the vacuum cleaner includes a secondary filter system and a main unit. The vacuum cleaner adopts the above-mentioned secondary filtration system, so that the secondary filter 6 can be removed and cleaned together with the dust cup 5. The secondary filter 6 is a high-efficiency air filter, which can effectively prevent fine dust from entering the host and prolong the life of the host. At the same time, it also has the advantages of simple structure, small occupied space and low cost.

Furthermore, although exemplary embodiments have been described herein, the scope includes any and all implementations based on this disclosure with equivalent elements, modifications, omissions, combinations (eg, where various embodiments intersect), adaptations, or alterations example. Elements in the claims are to be construed broadly based on the language employed in the claims, and are not to be limited to the examples described in this specification or during the practice of this application, the examples of which are to be construed as non-exclusive. Therefore, this specification and examples are intended to be regarded as examples only, with the true scope and spirit being indicated by the following claims along with their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of them) may be used in combination with each other. For example, other embodiments may be utilized by those of ordinary skill in the art upon reading the above description. Additionally, in the above Detailed Description, various features may be grouped together to simplify the present disclosure. This should not be construed as an intention that an unclaimed disclosed feature is essential to any claim. Rather, presently disclosed subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the Detailed Description by way of example or embodiment, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the disclosure should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present disclosure, and are not intended to limit the present disclosure, and the protection scope of the present disclosure is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the spirit and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.

Claims (10)

1. a secondary filter system, comprising a dust cup, a primary filter, a secondary filter and an air duct pipe in the dust cup, characterized in that, The bottom of the dust cup is provided with an air inlet, and the side opposite to the bottom of the dust cup is provided with a mounting seat; The air duct pipe includes: a first pipe section that communicates with the air inlet and is axially consistent with the dust cup; and a second pipe section, the second pipe section extends toward the inner wall of the dust cup and has an opening, the The opening of the opening is configured as an air outlet, and the opening is at least partially abutted against the inner wall of the dust cup to form a cyclone; The primary filter screen is sleeved around the air duct, and forms a cyclone cavity with the inner wall of the dust cup; The secondary filter is mounted to the mount from the air outlet side. 2 . The secondary filter system according to claim 1 , wherein the mounting seat is arranged on the inner wall of the dust cup. 3 . 3. The secondary filtration system of claim 1, wherein the secondary filter is removably mounted to the mount. 4 . The secondary filter system according to claim 1 , wherein the mounting seat and the air duct and the dust cup form an integral structure. 5 . 5 . The secondary filter system according to claim 1 , wherein the primary filter screen has a cylindrical portion, and the cylindrical portion is arranged such that its axis is aligned with the first pipe section of the air duct pipe. 6 . axis alignment. 6. The secondary filtration system of claim 1, wherein the secondary filter is arranged perpendicular to the axis of the dust cup. 7. The secondary filtration system according to claim 1, wherein the secondary filter is a high-efficiency air filter. 8 . The secondary filtration system according to claim 1 , wherein the opening is tangent to the inner wall of the dust cup, so that the air flow enters the cyclone cavity tangentially from the cyclone opening to form a wall-adhering cyclone. 9 . 9 . The secondary filtration system of claim 1 , wherein the opening is provided at the end of the second pipe section of the air duct pipe and configured as the cyclone. 10 . 10. A vacuum cleaner, comprising the secondary filter system according to any one of claims 1 to 9 and a main unit, wherein the main unit is arranged on the air outlet side of the secondary filter.