CN112656292A - Dirt and dust separating device and dust collector - Google Patents

Abstract

The invention provides a dust and dirt separating device and a dust collector, wherein an air inlet part is arranged on the side walls of two sides of a filter screen on a dust collecting cavity, and at the part where the air inlet part is connected with the dust collecting cavity, the tangent of at least one part of the air inlet part is overlapped with the tangent of the corresponding part of the dust collecting cavity. The filter screen moves at a high speed, the air flow carrying fine dust enters the dust collection cavity and contacts with the filter screen rotating at a high speed, and the filter screen applies friction force to dust particles in the air flow, so that the dust particles rotate along with the filter screen. The dirt particles move towards the edge of the outer filter screen under the action of the rotating centrifugal force, so that the blocking probability of the dirt particles to the filter screen is reduced, and the air duct is kept smooth. The dust and dirt particles separated from the filter screen continue to move under the action of the negative pressure generated by the centrifugal fan and finally fall to the bottom of the dust collection cavity.

Description

Dirt and dust separating device and dust collector

Technical Field

The invention relates to the technical field of dust collectors, in particular to a dust and dirt separating device and a dust collector.

Background

Vacuum cleaners are very common electrical appliances on the market. Through set up vacuum motor in vacuum cleaner, will carry with the dirty air suction of dirt inside the dust catcher, through the separation back, the dirt persists in vacuum cleaner the inside, and the clean air after the filtration is discharged to the external world.

In the prior art, in order to separate dust, a bag type separator or a cyclone separator is generally arranged inside a vacuum cleaner.

In the case of the bag-type separator, the main structure of the bag-type separator is a dust bag with filtering capability installed inside the dust collector, and the bag is provided with small holes for filtering out the particulate matters (dust and dirt) carried in the airflow passing through the dust bag. However, after a period of use, the small holes on the dust bag can be rapidly blocked by dirt, so that the suction force of the dust collector is reduced; after the dust collecting bag is filled, the old bag needs to be thrown away and replaced by a new bag, so that resource waste and environmental pollution are caused, and the use cost of a user is increased; the dirt separation efficiency is low. For the cyclone separator, the airflow carrying dust can form cyclone inside the dust collector, and the dust particles have relatively large mass and can be in friction collision with the wall of the container and fall into the dust collecting box under the action of centrifugal force, so that the aim of separating the dust and air is fulfilled. However, the cyclone separator consumes a large vacuum pressure, requires a large vacuum motor power, and has a strong noise ratio during operation, which affects user experience.

The prior art provides a dust and dirt separator comprising a foraminous disc at the air flow outlet of the collecting chamber and a motor for rotating the disc. The disk is arranged to rotate about an axis of rotation and includes apertures through which a cleaned airflow passes. The dirt-laden air stream enters the chamber and contacts the rotating turntable, which applies a tangential force to the air stream so that dirt entrained in the air stream moves radially along the surface of the turntable towards the edge of the turntable. During this process, the air flow will exit through the small holes in the turntable, and the dirt therein will continue to move towards the outer radial edge and collect at the bottom of the chamber due to its greater inertia. Compared with a cyclone separator, the separator consumes less vacuum pressure and can be matched with a vacuum motor with less power and noise.

However, in this design, the dirt-laden air stream impinges directly on the rotating discs. The large mass particles in the dirt will cause damage to the turntable and affect the balancing movement of the turntable.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the dirt separator in the prior art is easy to damage after being impacted by the airflow carrying the large-mass particles.

To this end, the present invention provides a dust and dirt separating apparatus comprising: a main body having a vacuum motor therein; the wind wheel is detachably arranged on the vacuum motor; the dust collecting cavity is detachably arranged on the main body, an opening is formed in the dust collecting cavity, the main body is connected with the dust collecting cavity through the opening, and an air inlet part is arranged on the dust collecting cavity; the filter screen motor is arranged in the main body, an output shaft is arranged on the filter screen motor, and a filter screen is arranged on the output shaft; the air inlet part is arranged on the side wall of the dust collection cavity on one side of the filter screen, and at the part where the air inlet part is connected with the dust collection cavity, the tangent of at least one part of the air inlet part is superposed with the tangent of the corresponding part of the dust collection cavity.

The dust and dirt separating device provided by the invention is characterized in that the air inlet part comprises a columnar pipe and a protruding part arranged at one end of the columnar pipe, and the protruding part is connected with the dust collecting cavity.

According to the dust and dirt separating device provided by the invention, the air inlet part is arranged on one side of the dust collecting cavity close to the main body.

According to the dust and dirt separating device provided by the invention, the support is arranged in the main body, and the filter screen motor is arranged on the support.

According to the dust and dirt separating device provided by the invention, the connecting column is arranged on the support corresponding to the filter screen motor, and the filter screen motor is arranged on the connecting column.

According to the dust and dirt separating device provided by the invention, the center of the filter screen is convexly arranged towards the direction far away from the filter screen motor.

According to the dust and dirt separating device provided by the invention, the connecting sleeve is arranged at the part of the filter screen connected with the filter screen motor, and the output shaft of the filter screen motor is arranged on the connecting sleeve.

According to the dust and dirt separating device provided by the invention, the filter screen is arranged in a conical shape.

According to the dust and dirt separating device provided by the invention, the groove is formed in the part, corresponding to the vacuum motor, of the main body, and the vacuum motor is suitable for being embedded into the groove.

The invention provides a dust and dirt separating device, wherein the side wall of the main body is provided with an exhaust hole.

According to the dust and dirt separating device provided by the invention, the parts of the main body corresponding to the dust collecting cavity are respectively provided with a thread, and a sealing ring is arranged on one side, close to the filter screen, of the thread on the main body and/or the dust collecting cavity.

The invention provides a dust collector, comprising: the invention provides a dust and dirt separating device; one end of the dust collection pipe is connected to the air inlet part of the dust and dirt separation device; and the dust collector head is connected to the other end of the dust collection pipe.

The technical scheme of the invention has the following advantages:

1. the invention provides a dust and dirt separating device, comprising: a main body having a vacuum motor therein; the wind wheel is detachably arranged on the vacuum motor; the dust collecting cavity is detachably arranged on the main body, an opening is formed in the dust collecting cavity, the main body is connected with the dust collecting cavity through the opening, and an air inlet part is arranged on the dust collecting cavity; the filter screen motor is arranged in the main body, an output shaft is arranged on the filter screen motor, and a filter screen is arranged on the output shaft; the air inlet part is arranged on the side wall of the dust collection cavity on one side of the filter screen, and at the part where the air inlet part is connected with the dust collection cavity, the tangent of at least one part of the air inlet part is superposed with the tangent of the corresponding part of the dust collection cavity.

In the invention, the air inlet part is arranged on the side walls of the dust collection cavity positioned at two sides of the filter screen, and at the part where the air inlet part is connected with the dust collection cavity, the tangent of at least one part of the air inlet part is superposed with the tangent of the corresponding part of the dust collection cavity.

Through foretell mode of setting up, filter screen self high-speed motion, the air current that carries tiny dust gets into the dust collection chamber and contacts with the filter screen of high-speed rotation, and the filter screen exerts frictional force to the dirt granule in the air current to make the dirt granule follow the filter screen and rotate. The dirt particles move towards the edge of the outer filter screen under the action of the rotating centrifugal force, so that the blocking probability of the dirt particles to the filter screen is reduced, and the air duct is kept smooth. The dust and dirt particles separated from the filter screen continue to move under the action of the negative pressure generated by the centrifugal fan and finally fall to the bottom of the dust collection cavity.

Simultaneously, because dirt granule self enters into the dust collecting chamber from the side direction of dust collecting chamber inside, is driven the position to the filter screen rapidly after contacting with the filter screen simultaneously, consequently can avoid the frontal impact with the filter screen to can reduce the dirt granule effectively and lead to the risk of filter screen damage to the filter screen striking.

In addition, the setting mode enables the filter screen to keep lower wind resistance all the time, so that the power of the vacuum motor can be lower, the weight of the battery is further reduced, the endurance time of the battery can be prolonged, the space occupied by the battery can be effectively reduced, and finally the dust and dirt separating device is beneficial to miniaturization and light weight. More importantly, because the power of the vacuum motor is reduced, the noise generated by the vacuum motor in the working process can be effectively reduced, and the use experience of a user can be improved.

2. The invention provides a dust and dirt separating device, wherein the air inlet part comprises a columnar pipe and a protruding part arranged at one end of the columnar pipe, and the protruding part is connected with a dust collecting cavity. By providing the projecting portion, tangential air intake operation to the inside of the dust collecting chamber can be achieved.

3. The invention provides a dust and dirt separating device, wherein a groove is formed in the position, corresponding to a vacuum motor, of a main body, and the vacuum motor is suitable for being embedded into the groove.

Through setting up the recess, can realize the stability of vacuum motor self, avoid vacuum motor to take place to rock.

4. The invention provides a dust and dirt separating device, wherein an exhaust hole is formed in the side wall of a main body. Through setting up the exhaust hole on the lateral wall, can avoid directly blowing user's health or hand position through the main part combustion air current, influence user's use and experience.

5. The invention provides a dust and dirt separating device, wherein threads are respectively arranged at the parts of a main body corresponding to a dust collecting cavity, and a sealing ring is arranged on one side, close to a filter screen, of the threads on the main body and/or the dust collecting cavity.

Through setting up the screw thread, can realize the quick assembly disassembly between main part and the dust collection chamber, simultaneously through setting up the sealing washer, can avoid outside wind to enter into dirt separator inside through the connecting portion in main part and dust collection chamber, cause harmful effects to the inside negative pressure of dirt separator.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a cross-sectional view of a dirt-and-dust separating apparatus provided in the present invention;

FIG. 2 is an exploded view of a dirt-and-dust separating apparatus provided in the present invention;

fig. 3 is a second sectional view of the dirt-and-dust separating apparatus provided in the present invention.

Description of reference numerals:

1-a body; 11-an exhaust hole; 2-a vacuum motor; 4-dust collecting chamber; 5-an air intake part; 51-cylindrical tube; 52-a projection; 6-a filter screen motor; 7-a filter screen; 71-connecting sleeves; 72-filtration pores; 8-bracket.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment provides a dust and dirt separating apparatus, as shown in fig. 1 to 3, including:

a main body 1, inside which a vacuum motor 2 is arranged;

the wind wheel is detachably arranged on the vacuum motor 2; in the embodiment, the wind wheel is integrated in the vacuum motor, and the shell on the vacuum motor 2 is provided with the through hole, so that the air suction operation is realized;

specifically, main part 1 self adopts the columniform mode of setting, and vacuum motor 2 self is connected with external power supply, and the center of wind wheel is connected on vacuum motor 2's output shaft, and the output shaft is connected with the center detachably of wind wheel, and it can be connected through the interference mode, also can connect through the screw thread. When the wind wheel rotates, negative pressure is generated in the main body 1, and external wind carries dust and dirt into the dust and dirt separating device;

the dust collecting cavity 4 is detachably arranged on the main body 1, an opening is formed in the dust collecting cavity 4, the main body 1 is connected with the dust collecting cavity 4 through the opening, and an air inlet part 5 is arranged on the dust collecting cavity 4;

specifically, the connection manner between the dust collection chamber 4 and the main body 1 is not limited, and may be connected by a snap. In a preferred embodiment, the body 1 and the dust collecting chamber 4 are respectively provided with a screw thread at a corresponding position, and a sealing ring is arranged on one side of the screw thread on the body 1 and/or the dust collecting chamber 4 close to the filter screen. Preferably, an external thread is arranged on the outer wall of the main body 1, an internal thread is arranged on the inner wall of the dust collection cavity 4, a sealing ring is arranged on at least one of the main body 1 and the dust collection cavity 4, the sealing ring is arranged on the inner side of the internal thread or the external thread, and the phenomenon that outside wind enters the dust and dirt separating device through the connecting part of the main body 1 and the dust collection cavity 4 and causes adverse effects on negative pressure inside the dust and dirt separating device can be avoided. Meanwhile, the dust in the main body 1 can be prevented from overflowing to the outside through the connecting part between the main body 1 and the dust collecting cavity 4.

In this embodiment, after the vacuum motor 2 is started, a negative pressure is generated inside the vacuum motor, and the negative pressure further drives external dust and dirt to enter the dust collection chamber 4 through the air inlet portion 5.

The filter screen motor 6 is arranged in the main body 1, an output shaft is arranged on the filter screen motor 6, a filter screen 7 is arranged on the output shaft, and a filter hole 72 is formed in the filter screen 7;

the filter screen sets up in the low reaches of the flow path of wind, and outside wind enters into dirt separator after, can at first contact with the filter screen, and filter screen self plays and carries out the effect of separating dirt and air.

In this embodiment, the air inlet 5 is disposed on the side wall of the dust collecting chamber 4 on one side of the filter screen, as shown in fig. 2, the air inlet 5 is disposed on the left side of the dust collecting chamber 4, and at the position where the air inlet 5 is connected to the dust collecting chamber 4, the tangent of at least a part of the air inlet 5 coincides with the tangent of the corresponding position of the dust collecting chamber 4.

Further, the air intake part 5 itself may be provided with a plurality of sets, as at the same time on both side walls of the dust collecting chamber 4.

In this embodiment, the structure of the filter screen itself is not limited too much, and the cross-sectional shape of the filter screen may be triangular or arc-shaped along the longitudinal cross-section of the filter screen. From the structural point of view, the filter screen can be a simple sheet structure, and can also be a closed structure with a hollow shape. In a preferred embodiment, the filter screen is arranged in a conical shape, and an included angle between a tangent of an edge of the filter screen and the longitudinal axis is 45 degrees.

Because dirt granule self enters into the dust collecting chamber from the side direction of dust collecting chamber inside, is driven the position to the filter screen rapidly simultaneously after contacting with the filter screen, consequently can avoid the frontal impact with the filter screen to can reduce the dirt granule effectively and lead to the risk of filter screen damage to the filter screen striking.

Through foretell mode of setting up, filter screen self high-speed motion, the air current that carries tiny dust gets into dust collection chamber 4 and with the filter screen contact of high-speed rotation, the filter screen exerts frictional force to the dirt granule in the air current to make the dirt granule follow the filter screen and rotate. The dirt particles move towards the edge of the outer filter screen under the action of the rotating centrifugal force, so that the blocking probability of the dirt particles to the filter screen is reduced, and the air duct is kept smooth. The dust particles separated from the filter screen continue to move under the action of the negative pressure generated by the centrifugal fan and finally fall to the bottom of the dust collection chamber 4.

The setting mode enables the filter screen to keep lower wind resistance all the time, so that the power of the vacuum motor 2 can be lower, the weight of the battery is reduced, the endurance time of the battery can be prolonged, the space occupied by the battery can be effectively reduced, and finally the dust and dirt separating device is beneficial to miniaturization and light weight. More importantly, as the power of the vacuum motor 2 is reduced, the noise generated by the vacuum motor 2 in the working process can be effectively reduced, and the use experience of a user can be improved.

In this embodiment, in order to realize the air intake operation of the dust collecting chamber 4, the air intake part 5 includes a cylindrical pipe 51, and a protruding part 52 disposed at one end of the cylindrical pipe 51, and the protruding part 52 is connected to the dust collecting chamber 4. By providing the projection 52, a tangential air intake operation into the dust collecting chamber 4 can be achieved.

The arrangement of the projection 52 is not limited too much, and it may be a regular shape, such as a regular arc; or irregular shapes such as a convex or concave arrangement at a portion of the projection 52.

In this embodiment, as shown in fig. 1, the air inlet 5 is provided on a side of the dust collecting chamber 4 close to the main body 1. Through the above arrangement mode, the air inlet part 5 is relatively close to the filter screen 7, so that the moving distance in the dust collection cavity 4 is relatively small, the acceleration distance is relatively short, and finally, the kinetic energy of dust particles acting on the filter screen 7 is small, so that the impact of the dust particles on the filter screen 7 is reduced.

That is, the air inlet 5 itself is provided at a position near above the dust collection chamber 4.

In this embodiment, in order to implement the installation operation of the filter screen motor 6, as shown in fig. 3, a support 8 is disposed inside the main body 1, and the filter screen motor 6 is disposed on the support 8.

Specifically, the periphery of the bracket 8 is connected to the inner wall of the main body 1, and the bracket 8 and the main body 1 can be integrally formed. The center of the bracket 8 is connected with a connecting hole, and the filter screen motor 6 is arranged at the position of the connecting hole.

In this embodiment, in order to improve the connection stability between the bracket 8 and the filter screen motor 6, a connection column is arranged at a position on the bracket 8 corresponding to the filter screen motor 6, and the filter screen motor 6 is arranged on the connection column. Specifically, the connection column extends toward the vacuum motor 2, the length of the connection column itself is not limited, and the vacuum motor 2 can be assembled as long as the connection column can be assembled.

In this embodiment, in order to realize stable connection between the filter screen and the filter screen motor 6, a connection sleeve 71 is disposed at a position on the filter screen connected to the filter screen motor 6, and an output shaft of the filter screen motor 6 is disposed on the connection sleeve 71.

The connection sleeve 71 is hollowed out, and the connection manner between itself and the output shaft is not limited. The connection may be performed by providing a pin between the connection sleeve 71 and the output shaft, or by screwing the connection sleeve 71 and the output shaft.

In this embodiment, in order to improve the installation stability of the vacuum motor 2 in the main body 1, a groove is provided at a position of the main body 1 corresponding to the vacuum motor 2, and the vacuum motor 2 is adapted to be inserted into the groove. Specifically, the vacuum motor 2 is embedded into the groove in a tight fit manner, so that stable installation is realized. The groove itself can be integrally formed on the side wall of the main body 1, and can also be installed inside the main body 1 by adopting a post-processing mode.

Further, the side wall of the main body 1 is provided with an exhaust hole 11. Through setting up exhaust hole 11 on the lateral wall, can avoid directly blowing user's health or hand position through main part 1 exhaust air current, influence user's use and experience. The shape and number of the exhaust holes 11 themselves are not limited as long as the air flow can be exhausted.

Example 2

The present embodiment provides a vacuum cleaner, including: the dirt-and-dust separating apparatus provided in example 1; one end of the dust collection pipe is connected to the position of an air inlet part 5 of the dust and dirt separation device; and the dust collector head is connected to the other end of the dust collection pipe.

The head itself will contact the floor, sofa, corner, etc. where cleaning is required. The negative pressure is generated after the dust and dirt separating device is started, and the negative pressure sucks dust and dirt into the dust and dirt separating device through the dust suction pipe through the dust collector head, so that the dust and dirt are stored.

In the embodiment, the handle can be directly arranged on the dust and dirt separating device, so that the handheld dust collector is formed, and when dust collection operation is needed, a user can directly hold the handle by hands to realize the dust collection operation.

As a variation, the dust and dirt separating device may be disposed in the dust suction barrel, and at this time, the user holds the dust suction pipe portion by hand, and dust and dirt generated in the cleaning process enters the dust suction barrel to be collected, and meanwhile, a roller is disposed in the dust suction barrel so as to move along with the user.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (13)

1. A dirt-and-dust separating apparatus, comprising:

a main body (1) provided with a vacuum motor (2) therein;

the wind wheel is detachably arranged on the vacuum motor (2);

the dust collection chamber (4) is detachably arranged on the main body (1), and an air inlet part (5) is arranged on the dust collection chamber (4);

the motor (6) of the filter screen (7) is arranged in the main body (1), an output shaft is arranged on the motor (6) of the filter screen (7), and the filter screen (7) is arranged on the output shaft;

the air inlet part (5) is arranged on the side wall of the dust collection cavity (4) on one side of the filter screen (7), the tangent of at least one part of the air inlet part (5) is overlapped with the tangent of the corresponding part of the dust collection cavity (4) at the part where the air inlet part (5) is connected with the dust collection cavity (4).

2. Dust and dirt separating device according to claim 1, characterized in that the air inlet (5) comprises a cylindrical tube (51), and a protrusion (52) arranged at one end of the cylindrical tube (51), the protrusion (52) being connected to the dust collecting chamber (4).

3. A dust and dirt separating apparatus according to claim 1 or 2, characterized in that the air inlet (5) is provided on the side of the dust collecting chamber (4) adjacent to the main body (1).

4. Dust and dirt separating device according to claim 1, characterized in that a support (8) is arranged inside the main body (1), and the filter screen (7) and the motor (6) are arranged on the support (8).

5. The dust-dirt separating device according to claim 4, characterized in that a connecting column is arranged on the bracket (8) at a position corresponding to the motor (6) of the filter screen (7), and the motor (6) of the filter screen (7) is arranged on the connecting column.

6. Dust and dirt separating device according to claim 1, characterized in that the filter screen (7) is provided with a centre protruding towards the direction away from the motor (6) of the filter screen (7).

7. The dust and dirt separating device according to claim 1 or 6, characterized in that a connecting sleeve (71) is arranged on the part of the filter screen (7) connected with the motor (6) of the filter screen (7), and the output shaft of the motor (6) of the filter screen (7) is arranged on the connecting sleeve (71).

8. Dust and dirt separating device according to claim 7, characterized in that the filter screen (7) is conically arranged.

9. Dust and dirt separating device according to claim 1 or 6, characterized in that the body (1) is provided with a recess in the area corresponding to the vacuum motor (2), into which recess the vacuum motor (2) is adapted to be inserted.

10. Dust and dirt separating device according to claim 1, characterized in that the side wall of the body (1) is provided with a vent hole (11).

11. A dust and dirt separating apparatus according to claim 1, wherein an opening is provided in the dust collecting chamber (4), and the main body (1) is connected to the dust collecting chamber (4) through the opening.

12. The dust and dirt separating device according to claim 11, wherein the body (1) and the dust collecting chamber (4) are provided with threads at corresponding positions, and a sealing ring is arranged on one side of the body (1) and/or the dust collecting chamber (4) close to the filter screen (7) by the threads.

13. A vacuum cleaner, comprising:

the dirt-and-dust separating apparatus of any one of claims 1 to 12;

one end of the dust collection pipe is connected to the air inlet part (5) of the dust and dirt separation device;

and the dust collector head is connected to the other end of the dust collection pipe.

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