Self-cleaning dust collector

Abstract

The invention 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] The present application relates to the technical field of electrical equipment, and in particular to a self-cleaning vacuum cleaner. Background Art

[0002] In the prior art, the patent with publication number CN216569740U discloses a vacuum cleaner, which forms a ventilation gap between the outer wall of the vacuum motor and the inner wall of the shell, and then the air outlet is connected to the air outlet end of the vacuum motor through the ventilation gap, that is, the ventilation gap between the outer wall of the vacuum motor and the inner wall of the shell is used as a ventilation duct of the vacuum motor, so that the vacuum cleaner does not need to be provided with an additional pipeline connected to the air outlet end of the vacuum motor, thereby reducing the internal space of the shell, and further reducing the size or volume of the vacuum cleaner. In addition, by driving the valve body, the second end of the inner ventilation duct is connected to the air outlet or the air inlet, thereby changing the air flow direction in the inner ventilation duct, and the air flow flows to the inner ventilation duct through the filter element set at the vent to ensure that the air flow flowing into the air inlet is filtered, that is, the dust collection mode; or the air flow flows to the filter element through the inner ventilation duct, thereby blowing away the dust on the filter element, and realizing the dust cleaning of the vacuum cleaner filter element, that is, the self-cleaning mode.

[0003] The above-mentioned self-cleaning vacuum cleaner needs to direct the airflow from the motor outlet to the dust bin in the vacuuming mode. In this way, the airflow has to pass through the motor twice, which makes the motor heat dissipation poor, the machine easily heats up, and brings a bad user experience.

[0004] With regard to the problem in the related art that the airflow has to pass through the motor twice in the vacuuming mode, causing the machine to easily heat up, no effective solution has been proposed so far. Summary of the invention

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

[0006] In order to achieve the above objective, according to one aspect of the present application, a self-cleaning vacuum cleaner is provided.

[0007] The self-cleaning vacuum cleaner of the present application comprises: an inner shell; a rotating shell is rotatably connected to the outside of the inner shell, and a first rotary valve and a second rotary valve are respectively connected to the positions near the front end and the tail end of the rotating shell; a filter element, a fixed air duct and a motor are also provided in the inner shell, and a fixed air duct and a motor are also provided in the inner shell, the front end of the fixed air duct is connected to the filter element through the first rotary valve, the tail 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 world through the second rotary valve; the first rotary valve and the second rotary valve can be driven to rotate by rotating the rotating shell, so that the first valve port of the first rotary valve is connected to the fixed air duct, and the valve port of the second rotary valve is connected to the outside world; or, the second valve port of the first rotary valve is connected to the rotating shell and the air inlet on the inner shell through the fixed air duct, and the valve port of the second rotary valve is closed.

[0008] Furthermore, a rotation groove is respectively provided on the inner shell at a position close to the front end and the rear end, and the rotation shell is rotatably connected in the two rotation grooves.

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

[0010] Furthermore, a dust bin is provided at the front end of the rotating shell, and the dust bin is communicated with the filter element and with the outside world.

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

[0012] Furthermore, the rear portion 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, an inner groove is provided on the inner side wall of the rotating shell, and the inner groove is engaged with the first protrusion of the first rotating valve and the second protrusion of the second rotating valve.

[0014] Furthermore, the air inlet holes of the inner shell and the rotating shell are both located near the front end. When the second valve port of the first rotary valve is connected with the air inlet holes 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 inlet hole of the inner shell and the air inlet hole of the rotating shell are opposite to each other.

[0015] According to the technical solution of the present invention, a dual-channel switching method is adopted by adopting a dual rotary valve, and the first rotary valve and the second rotary valve can be driven to rotate by rotating the rotating shell, so that the first valve port of the first rotary valve is connected with the fixed airway, and the valve port of the second rotary valve is connected with the outside; or, the second valve port of the first rotary valve is connected with the air inlet hole on the rotating shell and the inner shell through the fixed airway, and the valve port of the second rotary valve is closed; the purpose of the airflow passing through the motor only once in the vacuum mode is achieved, thereby realizing the technical effect of better discharging heat from the machine to effectively reduce the temperature rise during use, and thus solving the technical problem that the machine is prone to heating up due to the airflow passing through the motor twice in the vacuum mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

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

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

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

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

[0021] Reference numerals

[0022] 1. Rotating shell; 2. Inner shell; 3. Motor; 4. Fixed airway; 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 DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work 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 and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] In addition, some of the above terms may be used to express other meanings in addition to indicating a direction or position relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] like Figure 1-4 As shown, the self-cleaning vacuum cleaner in the embodiment of the present invention comprises an inner shell 2 and a rotating shell 1, wherein the inner shell 2 adopts a cylindrical design, so that the rotating shell 1 can rotate around it to a corresponding position; the inner shell 2 is rotatably connected to the rotating shell 1, and the first rotating valve 5 and the second rotating valve 7 are respectively connected to the front end and the rear end of the rotating shell 1; the rotating shell 1 also adopts a cylindrical design; the rotating shell 1 and the inner shell 2 are rotatably connected, so as to ensure that the rotating shell 1 can rotate around the inner shell 2; when the rotating shell 1 rotates, since the first rotating valve 5 and the second rotating valve 7 are connected to it, the first rotating valve 5 and the second rotating valve 7 at the front end and the rear end can also be driven to rotate, thereby achieving the purpose of switching different air outlet channels.

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

[0031] A fixed air duct 4 and a motor 3 are also provided in the inner shell 2. The front end of the fixed air duct 4 is connected to a filter element 8 through a first rotary valve 5, the tail end of the fixed air duct 4 is connected to an air inlet 31 of the motor 3, and an 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 openings, and the first rotary valve 5 is driven to rotate by rotating the rotating shell 1, so that the fixed air duct 4 can be connected to different valve openings on the first rotary valve 5, thereby realizing switching of different air outlet channels; the tail 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 from the valve opening of the second rotary valve 7 at the tail end.

[0032] It should be understood that the filter element 8 can be arranged in the inner shell 2, and can also be arranged in the dust bin at the front end of the fixed air duct 4, and there is no limitation here.

[0033] In addition, it is worth noting that the positions of the fixed airway 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 the embodiment of the present invention is as follows:

[0035] When the vacuuming mode is needed, the first rotary valve 5 and the second rotary valve 7 can be driven to rotate by rotating the rotating shell 1, so that the first valve port 51 of the first rotary valve 5 is connected to the fixed airway 4, and the valve port of the second rotary valve 7 is connected to the outside world; in this way, after the motor 3 is turned on, the airflow enters the filter element 8 from the outside world, enters the first valve port 51 of the first rotary valve 5 from the tail end of the filter element 8, and then enters the fixed airway 4 from the first valve port 51, and flows into the air inlet 31 of the motor 3 from the fixed airway 4. After the airflow passes through the entire motor 3, it is discharged to the outside world from the air outlet 32 ​​of the motor 3 through the gap between the motor 3 and the inner shell 2 and the valve port of the second rotary valve 7 in sequence; in this process, the airflow passes through the motor 3 only once, and will not pass through the motor 3 a second time, which greatly reduces the temperature rise of the vacuum cleaner in the vacuuming mode.

[0036] When the self-cleaning mode is needed, the first rotary valve 5 and the second rotary valve 7 can be driven to rotate by rotating the rotating shell 1, so that the second valve port 52 of the first rotary valve 5 is connected with the air inlet holes on the rotating shell 1 and the inner shell 2 through the fixed air channel 4, and the valve port of the second rotary valve 7 is closed; in this way, after the motor 3 is turned on, the air flow can enter from the air inlet holes on the rotating shell 1 and the inner shell 2, and then enter the fixed air channel 4 through the second valve port 52 of the first rotary valve 5, flow into the air inlet 31 of the motor 3 from the fixed air channel 4, and then flow out from the air outlet 32 ​​of the motor 3; because the valve port of the second rotary valve 7 is in a closed state, the air flow can only enter the first valve port 51 of the first rotary valve 5 in the opposite direction through the gap between the motor 3 and the inner shell 2, and then enter the bottom of the filter element 8, pass through the filter element 8 and be discharged to the outside world, so that the dust on the filter element 8 can be blown out, so as to achieve the purpose of self-cleaning.

[0037] It is also necessary to understand that in the self-cleaning mode, the valve opening of the second rotary valve 7 is closed, allowing the airflow to flow forward, thereby achieving the purpose of cleaning the dust bin; since the self-cleaning mode is generally very short, the machine does not generate much heat and the temperature rise is almost imperceptible, so it will not affect the user experience.

[0038] A dust bin is provided at the front end of the rotating shell 1 in this embodiment, and the dust bin is connected to the filter element 8 and to the outside world; in the self-cleaning mode, the back-blown airflow and dust first enter the dust bin and then are discharged to the outside world.

[0039] A battery compartment is also provided at the rear end of the rotating shell 1 in this embodiment, and the air outlet 32 ​​of the motor 3 is connected to the battery compartment through a gap and a second rotary valve 7, and the battery compartment has an air outlet connected to the outside world; further, an air outlet 6 is provided at the rear end of the inner shell 2, and 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 vacuum mode, the air flow flows from the air outlet 6 through the valve mouth of the second rotary valve 7, then enters the battery compartment, and is finally discharged to the outside world through the air outlet on the battery compartment.

[0040] An inner groove is further provided on the inner side wall of the rotating shell 1 in the present embodiment, and the inner groove is engaged with the first protrusion 53 of the first rotating valve 5 and the second protrusion 71 of the second rotating valve 7; the first protrusion 53 of the first rotating valve 5 and the second protrusion 71 of the second rotating valve 7 are engaged by the inner groove on the rotating shell 1, so that when the rotating shell 1 rotates, the first rotating valve 5 and the second rotating valve 7 can be driven to rotate as well, so that the linkage of the two rotating valves can be completed with one rotation, thereby achieving the purpose of connecting the first valve port 51 of the first rotating valve 5 with the fixed airway 4 while connecting the valve port of the second rotating valve 7 with the outside world.

[0041] In this embodiment, the air inlet holes 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 with the air inlet holes 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 inlet hole of the inner shell 2 and the air inlet hole of the rotating shell 1 are opposite to each other. Such an arrangement can ensure that the airflow can smoothly enter from the air inlet hole.

[0042] According to the technical solution of the embodiment of the present invention, a dual-channel switching method is adopted by adopting a dual rotary valve. By rotating the rotating shell 1, the first rotary valve 5 and the second rotary valve 7 can be driven to rotate, so that the first valve port 51 of the first rotary valve 5 is connected with the fixed airway 4, and the valve port of the second rotary valve 7 is connected with the outside; or, the second valve port 52 of the first rotary valve 5 is connected with the air inlet hole on the rotating shell 1 and the inner shell 2 through the fixed airway 4, and the valve port of the second rotary valve 7 is closed; the purpose of the airflow passing through the motor 3 only once in the vacuum mode is achieved, thereby realizing the technical effect of better discharging heat from the machine to effectively reduce the temperature rise during use, thereby solving the technical problem that the machine is prone to heating due to the airflow passing through the motor 3 twice in the vacuum mode.

[0043] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A self-cleaning vacuum cleaner, characterized in that: include: Inner shell; A rotating shell is rotatably connected to the inner shell, and a first rotating valve and a second rotating valve are respectively connected to the positions near the front end and the rear end of the rotating shell; A fixed airway and a motor are also provided in the inner shell, the front end of the fixed airway is connected to a filter element through the first rotary valve, the rear end of the fixed airway 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; The first rotary valve and the second rotary valve can be driven to rotate by rotating the rotary shell, so that the first valve port of the first rotary valve is connected to the fixed air passage, and the valve port of the second rotary valve is connected to the outside; or, the second valve port of the first rotary valve is connected to the air inlet holes on the rotary shell and the inner shell through the fixed air passage, and the valve port of the second rotary valve is closed; A rotation groove is respectively provided on the inner shell near the front end and the rear end, and the rotation shell is rotatably connected in the two rotation grooves; An inner groove is provided on the inner side wall of the rotating shell, and the inner groove is engaged with the first protrusion of the first rotating valve and the second protrusion of the second rotating valve.

2. The self-cleaning vacuum cleaner according to claim 1, characterized in that: A gap is provided between the motor and the inner shell, and the gap is connected with the air outlet of the motor and the valve port of the second rotary valve.

3. The self-cleaning vacuum cleaner according to claim 1, characterized in that: A dust bin is provided at the front end of the rotating shell, and the dust bin is communicated with the filter element and the outside world.

4. The self-cleaning vacuum cleaner according to claim 1, characterized in that: A battery compartment is provided at the rear end of the rotating shell, and the air outlet of the motor is connected with the battery compartment through the gap and the second rotating valve. The battery compartment has an air outlet connected with the outside.

5. The self-cleaning vacuum cleaner according to claim 4, characterized in that: The rear portion of the inner shell is provided with an air outlet, and the air outlet of the motor is connected with the battery compartment through the gap, the air outlet, and the second rotary valve.

6. The self-cleaning vacuum cleaner according to claim 1, characterized in that: The air inlet holes of the inner shell and the rotating shell are both located near the front end. When the second valve port of the first rotary valve is connected with the air inlet holes on the rotating shell and the inner shell through the fixed air passage and the valve port of the second rotary valve is closed, the air inlet hole of the inner shell is opposite to the air inlet hole of the rotating shell.

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