Self-cleaning dust collector

Abstract

The utility model discloses a self-cleaning dust collector. The self-cleaning vacuum cleaner includes: an inner case; a rotating shell is rotatably connected outside the inner shell, and a first rotating valve and a second rotating valve are connected to the positions, close to the front end and the tail end, of the rotating shell respectively; a fixed air channel and a motor are further arranged in the inner shell, the front end of the fixed air channel is connected with a filter element through a first rotary valve, the tail end of the fixed air channel is connected with an air inlet of the motor, and an air outlet of the motor is communicated with the outside through a second rotary valve; the first rotary valve and the second rotary valve can be driven to rotate by rotating the rotary shell, so that a first valve port of the first rotary valve is communicated with the fixed air channel, and a valve port of the second rotary valve is communicated with the outside; or, the second valve port of the first rotary valve is communicated with the air inlet holes in the rotary shell and the inner shell through the fixed air channel, and the valve port of the second rotary valve is closed. The technical problem that a machine is prone to heating due to the fact that airflow needs to pass through a motor twice in a dust collection mode is solved.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and more specifically, to a self-cleaning vacuum cleaner. Background Technology

[0002] In the prior art, patent CN216569740U discloses a vacuum cleaner that utilizes a ventilation gap between the outer wall of the vacuum motor and the inner wall of the housing. The air outlet connects to the exhaust end of the vacuum motor through this gap. This utilizes the ventilation gap between the outer wall of the vacuum motor and the inner wall of the housing as a ventilation duct for the vacuum motor, eliminating the need for an additional duct connecting to the exhaust end of the vacuum motor. This reduces the internal space of the housing, thereby reducing the size or volume of the vacuum cleaner. Furthermore, by driving a valve body, the second end of the internal ventilation duct connects to either the exhaust duct or the intake duct, thereby changing the airflow direction within the internal ventilation duct. Airflow flows through a filter element located at the vent into the internal ventilation duct, ensuring that the airflow into the intake duct is filtered (vacuuming mode); or airflow flows through the internal ventilation duct to the filter element, blowing away dust from the filter element (self-cleaning mode).

[0003] The self-cleaning vacuum cleaners mentioned above require the airflow from the motor outlet to be directed towards the dustbin during vacuuming mode. This means the airflow has to pass through the motor twice, which hinders heat dissipation and causes the machine to overheat, resulting in a poor user experience.

[0004] There is currently no effective solution to the problem of machine overheating caused by airflow passing through the motor twice in the vacuuming mode of related technologies. Utility Model Content

[0005] The main purpose of this application is to provide a self-cleaning vacuum cleaner to solve the problem of the machine easily overheating due to the airflow passing through the motor twice in the vacuuming mode.

[0006] To achieve the above objectives, according to one aspect of this application, a self-cleaning vacuum cleaner is provided.

[0007] The self-cleaning vacuum cleaner of this application includes: an inner shell; a rotating shell rotatably connected to the outer shell, with a first rotating valve and a second rotating valve connected to the rotating shell near the front and rear ends respectively; the inner shell also contains a filter element, a fixed air duct, and a motor, the front end of the fixed air duct is connected to the filter element through the first rotating valve, the rear end of the fixed air duct is connected to the air inlet of the motor, and the air outlet of the motor is connected to the outside through the second rotating valve; rotating the rotating shell can drive the first rotating valve and the second rotating valve to rotate, thereby making the first valve port of the first rotating valve connected to the fixed air duct, and the valve port of the second rotating valve connected to the outside; or, making the second valve port of the first rotating valve connected to the air inlet on the rotating shell and the inner shell through the fixed air duct, and the valve port of the second rotating valve closed.

[0008] Furthermore, a rotating groove is formed on the inner shell near the front end and the rear end, and the rotating shell is rotatably connected in the two rotating grooves.

[0009] Furthermore, there is a gap between the motor and the inner housing, and the gap connects the air outlet of the motor and the valve port of the second rotary valve.

[0010] Furthermore, the front end of the rotating shell is provided with a dust chamber, which is connected to the filter element and also connected to the outside.

[0011] Furthermore, the rear end of the rotating shell is provided with a battery compartment, and the air outlet of the motor is connected to the battery compartment through the gap and the second rotary valve. The battery compartment has an air outlet that communicates with the outside.

[0012] Furthermore, the rear of the inner shell has an air outlet, and the air outlet of the motor is connected to the battery compartment through the gap, the air outlet, and the second rotary valve.

[0013] Furthermore, the inner wall of the rotating shell is provided with an inner groove, which engages with the first protrusion of the first rotary valve and the second protrusion of the second rotary valve.

[0014] Furthermore, the air inlets of both the inner shell and the rotating shell are located near the front end. When the second valve port of the first rotary valve is connected to the air inlets on the rotating shell and the inner shell through a fixed air passage, and the valve port of the second rotary valve is closed, the air inlets of the inner shell and the air inlets of the rotating shell are opposite each other.

[0015] According to the technical solution of this utility model, a dual-channel switching method using dual rotary valves is adopted. By rotating the rotating shell, the first rotary valve and the second rotary valve can be rotated, thereby connecting the first valve port of the first rotary valve to the fixed air passage and the valve port of the second rotary valve to the outside; or, the second valve port of the first rotary valve can be connected to the air inlet on the rotating shell and the inner shell through the fixed air passage, and the valve port of the second rotary valve can be closed. This achieves the goal that the airflow only passes through the motor once in the dust collection mode, thereby realizing the technical effect of better dissipating heat from the machine to effectively reduce the temperature rise during use, and thus solving the technical problem that the machine is prone to overheating due to the airflow having to pass through the motor twice in the dust collection mode. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0017] Figure 1 This is one of the structural schematic diagrams of a self-cleaning vacuum cleaner according to an embodiment of this application;

[0018] Figure 2 This is a second structural schematic diagram of a self-cleaning vacuum cleaner according to an embodiment of this application;

[0019] Figure 3 This is one of the schematic diagrams of the body of a self-cleaning vacuum cleaner according to an embodiment of this application;

[0020] Figure 4 This is a second schematic diagram of the body of a self-cleaning vacuum cleaner according to an embodiment of this application.

[0021] Figure Labels

[0022] 1. Rotating shell; 2. Inner shell; 3. Motor; 4. Fixed air passage; 5. First rotary valve; 6. Air outlet; 7. Second rotary valve; 8. Filter element; 11. Air inlet of rotating shell; 12. Inner groove; 21. Rotating groove; 22. Air inlet of inner shell; 31. Air inlet; 32. Air outlet; 51. First valve port; 52. Second valve port; 53. First protrusion; 71. Second protrusion. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0027] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] like Figure 1-4 As shown, the self-cleaning vacuum cleaner in this embodiment of the present invention has an inner shell 2 and a rotating shell 1. The inner shell 2 adopts a cylindrical design, which facilitates the rotating shell 1 to rotate to the corresponding position. The rotating shell 1 is rotatably connected to the inner shell 2. A first rotary valve 5 and a second rotary valve 7 are respectively connected to the rotating shell 1 near the front end and the rear end. The rotating shell 1 also adopts a cylindrical design. The rotating shell 1 and the inner shell 2 are rotatably connected, which ensures that the rotating shell 1 can rotate around the inner shell 2. When the rotating shell 1 rotates, since the first rotary valve 5 and the second rotary valve 7 are connected to it, the first rotary valve 5 and the second rotary valve 7 at the front end and the rear end can also rotate, thereby achieving the purpose of switching between different air outlet channels.

[0030] In this embodiment, a rotating groove 21 is provided on the inner shell 2 near the front end and the rear end, respectively, and the rotating shell 1 is rotatably connected in the two rotating grooves 21; thereby enabling the rotating shell 1 to rotate along the two rotating grooves 21, and realizing the rotation of the rotating shell 1 around the inner shell 2.

[0031] The inner shell 2 is also equipped with a fixed air duct 4 and a motor 3. The front end of the fixed air duct 4 is connected to a filter element 8 through a first rotary valve 5. The rear end of the fixed air duct 4 is connected to the air inlet 31 of the motor 3. The air outlet 32 ​​of the motor 3 is connected to the outside through a second rotary valve 7. The first rotary valve 5 has two valve ports. By rotating the rotating shell 1, the first rotary valve 5 can be rotated, so that the fixed air duct 4 can be connected to different valve ports on the first rotary valve 5, thereby realizing the switching of different air outlet channels. The rear end of the fixed air duct 4 is connected to the air inlet 31 of the motor 3, thereby ensuring that in the dust collection mode, the airflow can pass through the motor 3 and be discharged to the outside through the valve port of the second rotary valve 7 at the rear end.

[0032] It should be noted that the filter element 8 can be installed in the inner shell 2 or in the dust chamber at the front end of the fixed air duct 4; there are no restrictions on this.

[0033] In addition, it is worth noting that the positions of the fixed air passage 4 and the first rotary valve 5 can be interchanged to achieve the same technical effect.

[0034] The working principle of the self-cleaning vacuum cleaner in this embodiment of the invention is as follows:

[0035] When vacuuming mode is needed, rotating the rotating shell 1 drives the first rotating valve 5 and the second rotating valve 7 to rotate, thereby connecting the first valve port 51 of the first rotating valve 5 with the fixed air passage 4, and the valve port of the second rotating valve 7 with the outside. After the motor 3 is turned on, the airflow enters the filter 8 from the outside, enters the first valve port 51 of the first rotating valve 5 from the tail end of the filter 8, and then enters the fixed air passage 4 from the first valve port 51. The airflow flows into the air inlet 31 of the motor 3 from the fixed air passage 4. After passing through the entire motor 3, the airflow exits from the air outlet 32 ​​of the motor 3, passes through the gap between the motor 3 and the inner shell 2, and the valve port of the second rotating valve 7 to the outside. During this process, the airflow only passes through the motor 3 once and will not pass through the motor 3 a second time, which greatly reduces the temperature rise of the vacuum cleaner in vacuuming mode.

[0036] When the self-cleaning mode is required, rotating the rotating shell 1 drives the first rotating valve 5 and the second rotating valve 7 to rotate. This causes the second valve port 52 of the first rotating valve 5 to connect with the air inlet on the rotating shell 1 and the inner shell 2 through the fixed air passage 4, while the valve port of the second rotating valve 7 is closed. Thus, when the motor 3 is turned on, the airflow can enter from the air inlet on the rotating shell 1 and the inner shell 2, then enter the fixed air passage 4 through the second valve port 52 of the first rotating valve 5, flow into the air inlet 31 of the motor 3 through the fixed air passage 4, and then flow out from the air outlet 32 ​​of the motor 3. Since the valve port of the second rotating valve 7 is closed, the airflow can only enter the first valve port 51 of the first rotating valve 5 through the gap between the motor 3 and the inner shell 2, then enter the bottom of the filter element 8, pass through the filter element 8 and be discharged to the outside, thereby blowing out the dust on the filter element 8 and achieving the purpose of self-cleaning.

[0037] It is also important to know that in self-cleaning mode, the valve port of the second rotary valve 7 is closed, allowing airflow to move forward, thereby achieving the purpose of cleaning the dust chamber. Since the self-cleaning mode is generally very short and the machine does not generate much heat, the temperature rise is almost imperceptible and will not affect the user experience.

[0038] In this embodiment, the front end of the rotating shell 1 is provided with a dust chamber, which is connected to the filter element 8 and to the outside. In the self-cleaning mode, the airflow and dust blown out first enter the dust chamber and then are discharged to the outside.

[0039] In this embodiment, the rear end of the rotating shell 1 is also provided with a battery compartment. The air outlet 32 ​​of the motor 3 is connected to the battery compartment through a gap and the second rotary valve 7. The battery compartment has an air outlet that communicates with the outside. Furthermore, the rear end of the inner shell 2 has an air outlet 6. The air outlet 32 ​​of the motor 3 is connected to the battery compartment through a gap, the air outlet 6, and the second rotary valve 7. In the dust collection mode, the airflow flows from the air outlet 6 through the valve port of the second rotary valve 7, then enters the battery compartment, and finally is discharged to the outside through the air outlet on the battery compartment.

[0040] In this embodiment, the inner wall of the rotating shell 1 is also provided with an inner groove, which engages with the first protrusion 53 of the first rotating valve 5 and the second protrusion 71 of the second rotating valve 7. By engaging the first protrusion 53 of the first rotating valve 5 and the second protrusion 71 of the second rotating valve 7 with the inner groove on the rotating shell 1, it can be ensured that when the rotating shell 1 rotates, it can drive the first rotating valve 5 and the second rotating valve 7 to rotate as well, so that the linkage of the two rotating valves can be completed with one rotation. This achieves the purpose of connecting the first valve port 51 of the first rotating valve 5 with the fixed air passage 4, while connecting the valve port of the second rotating valve 7 with the outside.

[0041] In this embodiment, the air inlets of the inner shell 2 and the rotating shell 1 are both located near the front end. When the second valve port 52 of the first rotary valve 5 is connected to the air inlets on the rotating shell 1 and the inner shell 2 through the fixed air passage 4, and the valve port of the second rotary valve 7 is closed, the air inlets of the inner shell 2 and the air inlets of the rotating shell 1 are opposite each other. This arrangement can ensure that the airflow can smoothly enter from the air inlet.

[0042] According to the technical solution of this utility model embodiment, a dual-channel switching method using dual rotary valves is adopted. By rotating the rotating shell 1, the first rotary valve 5 and the second rotary valve 7 can be rotated, thereby connecting the first valve port 51 of the first rotary valve 5 to the fixed air passage 4, and connecting the valve port of the second rotary valve 7 to the outside; or, connecting the second valve port 52 of the first rotary valve 5 to the air inlet on the rotating shell 1 and the inner shell 2 through the fixed air passage 4, and closing the valve port of the second rotary valve 7. This achieves the goal that the airflow only passes through the motor 3 once in the dust collection mode, thereby achieving the technical effect of better exhausting heat from the machine to effectively reduce the temperature rise during use, and thus solving the technical problem that the machine is prone to overheating due to the airflow having to pass through the motor 3 twice in the dust collection mode.

[0043] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A self-cleaning vacuum cleaner characterised in that, include: Inner shell; The inner shell is rotatably connected to a rotating shell, and a first rotary valve and a second rotary valve are respectively connected to the rotating shell near the front end and the tail end. The inner shell is also provided with a fixed air duct and a motor. The front end of the fixed air duct is connected to a filter element through the first rotary valve, the rear end of the fixed air duct is connected to the air inlet of the motor, and the air outlet of the motor is connected to the outside through the second rotary valve. Rotating the rotating shell can drive the first rotary valve and the second rotary valve to rotate, thereby connecting the first valve port of the first rotary valve to the fixed air passage and the valve port of the second rotary valve to the outside; or, connecting the second valve port of the first rotary valve to the air inlet on the rotating shell and the inner shell through the fixed air passage and closing the valve port of the second rotary valve.

2. The self-cleaning vacuum cleaner of claim 1, wherein, A rotating groove is formed on the inner shell near the front end and the rear end, respectively, and the rotating shell is rotatably connected in the two rotating grooves.

3. The self-cleaning vacuum cleaner of claim 1, wherein, There is a gap between the motor and the inner housing, and the gap connects the air outlet of the motor and the valve port of the second rotary valve.

4. The self-cleaning vacuum cleaner of claim 1, wherein, The front end of the rotating shell is provided with a dust chamber, which is connected to the filter element and also connected to the outside.

5. The self-cleaning vacuum cleaner of claim 3, wherein, The rear end of the rotating shell is provided with a battery compartment. The air outlet of the motor is connected to the battery compartment through the gap and the second rotary valve. The battery compartment has an air outlet that communicates with the outside.

6. The self-cleaning vacuum cleaner of claim 5, wherein, The inner shell has an air outlet at its tail end, and the motor's air outlet is connected to the battery compartment through the gap, the air outlet, and the second rotary valve.

7. The self-cleaning vacuum cleaner of claim 1, wherein, The inner wall of the rotating shell is provided with an inner groove, which engages with the first protrusion of the first rotary valve and the second protrusion of the second rotary valve.

8. The self-cleaning vacuum cleaner of claim 1, wherein, The air inlets of both the inner shell and the rotating shell are located near the front end. When the second valve port of the first rotary valve is connected to the air inlets on the rotating shell and the inner shell through a fixed air passage, and the valve port of the second rotary valve is closed, the air inlets of the inner shell and the air inlets of the rotating shell are opposite each other.

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