Vacuum cleaner

Abstract

This utility model discloses a vacuum cleaner, comprising: a filter; a filter bracket, wherein the filter is circumferentially mounted around the periphery of the filter bracket, thereby forming a circumferential gap between the outer surface of the filter bracket and the inner surface of the filter; the filter bracket is provided with a cleaning airflow inlet for providing cleaning airflow into the gap; the filter bracket is also provided with at least one rib, which is located on the periphery of the filter bracket and extends along the height direction of the filter bracket. In the vacuum cleaner provided by this utility model, the cleaning airflow entering the gap from the cleaning airflow inlet will flow regularly along the height direction of the filter bracket under the guidance of the rib, avoiding disorderly flow of the cleaning airflow within the gap. The cleaning airflow can effectively blow away dust and other impurities on the filter, and the cleaning airflow can flow through a large area of ​​the filter along the height direction of the filter bracket, ensuring that the cleaning airflow can clean a large surface area of ​​the filter, thus ensuring the cleaning effect of the filter.

Description

Technical Field

[0001] This utility model relates to the field of electrical appliances, and in particular to a vacuum cleaner. Background Technology

[0002] In existing vacuum cleaners, a filter is installed outside the filter holder, with a circumferential gap between the filter holder and the filter. When the filter needs to be cleaned, the vacuum cleaner's suction motor operates, drawing clean airflow from the outside into the gap. After being drawn into the gap, the clean airflow flows within the gap and blows towards the filter, thereby blowing off dust and other impurities on the filter, thus cleaning the filter.

[0003] In existing vacuum cleaners, the airflow path of the cleaning airflow within the gap is relatively short. After the cleaning airflow enters the gap, it is quickly sucked away by the suction motor, preventing the cleaning airflow from flowing to a sufficient area of ​​the filter and resulting in poor cleaning effect on the filter. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum cleaner that solves the problem that the cleaning airflow in the prior art cannot reach a sufficient area of ​​the filter, resulting in poor cleaning effect on the filter.

[0005] To achieve the above objectives, this utility model provides a vacuum cleaner, which includes:

[0006] Filter;

[0007] A filter holder, wherein the filter is circumferentially mounted around the periphery of the filter holder, thereby forming a circumferential gap between the outer surface of the filter holder and the inner surface of the filter;

[0008] The filter support is provided with a clean airflow inlet to provide clean airflow into the gap;

[0009] The filter support is further provided with at least one stiffener located on the periphery of the filter support and extending along the height direction of the filter support, so as to guide the clean airflow entering from the clean airflow inlet to flow through the gap along the height direction to clean the filter.

[0010] As a further improvement of this utility model, the number of the stiffeners is at least two, and the at least two stiffeners divide the gap into multiple self-cleaning channels, through which the cleaning airflow passes to clean the filter.

[0011] As a further improvement of this utility model, the clean airflow inlet is formed at one end of the filter bracket and is spaced to form a plurality of self-cleaning ports. The number of self-cleaning ports is the same as the number of self-cleaning channels, and each self-cleaning channel is connected to a corresponding self-cleaning port.

[0012] As a further improvement of this utility model, the filter bracket includes a cylindrical main body and a mating part located around the periphery of the main body, and the clean airflow inlet is formed between the main body and the mating part.

[0013] As a further improvement of this utility model, a suction port is provided on the periphery of the main body, and the vacuum cleaner also includes a suction source communicating with the suction port; the dust-laden airflow is filtered by the filter and then sucked to the suction source through the suction port.

[0014] As a further improvement of this utility model, the filter bracket has an inner cavity, and the vacuum cleaner also includes a water-insulating cup located at the bottom of the inner cavity, with the suction port located away from the water-insulating cup.

[0015] As a further improvement of this utility model, the suction port is located between the self-cleaning port and the water-insulating cup in the height direction.

[0016] As a further improvement of this utility model, multiple suction ports are provided at intervals along the circumferential direction of the filter bracket, and the multiple suction ports and multiple self-cleaning channels are arranged alternately along the circumferential direction of the filter bracket.

[0017] As a further improvement of this utility model, the filter bracket also includes a blocking part connected to the periphery of the main body, the blocking part being located in the height direction on the side of the suction port near the self-cleaning port.

[0018] As a further improvement of this utility model, the plurality of ribs include a plurality of first ribs and a plurality of second ribs arranged alternately along the circumferential direction of the filter bracket. The first ribs are higher than the blocking portion, and the second ribs are not higher than the blocking portion. The plurality of first ribs separate the cleaning airflow inlet into a plurality of self-cleaning ports.

[0019] Beneficial effects:

[0020] In the vacuum cleaner provided by this utility model, the cleaning airflow entering the gap from the cleaning airflow inlet will flow regularly along the height direction of the filter bracket under the guidance of the rib plate, avoiding the disorderly flow of the cleaning airflow in the gap. The cleaning airflow can effectively blow off dust and other impurities on the filter, and the cleaning airflow can flow through more areas of the filter along the height direction of the filter bracket, ensuring the cleaning effect on the filter. Attached Figure Description

[0021] Figure 1 A cross-sectional view of a vacuum cleaner provided in an embodiment of the present invention, wherein path S1 shows the flow direction of the cleaning airflow;

[0022] Figure 2 Another cross-sectional view of a vacuum cleaner provided in an embodiment of the present utility model, wherein path S2 shows the flow direction of the dust-laden airflow;

[0023] Figure 3 A cross-sectional view of the filter bracket, filter, and water-insulating cup in a vacuum cleaner provided according to an embodiment of the present utility model;

[0024] Figure 4 for Figure 3 A three-dimensional structural diagram of the filter support;

[0025] Figure 5 for Figure 3 Top view of the filter bracket;

[0026] Figure 6 for Figure 5 A magnified diagram of point A in the middle;

[0027] Figure 7 for Figure 3 Another three-dimensional structural diagram of the filter support;

[0028] Figure 8 for Figure 7 A magnified diagram of point B in the middle;

[0029] Figure 9 A three-dimensional structural schematic diagram of a filter holder provided in another embodiment of the present utility model;

[0030] Figure 10 for Figure 9 A three-dimensional structural diagram of the filter holder from another perspective.

[0031] In the picture:

[0032] 100. Vacuum cleaner; 101. Airflow channel; 102. Flip plate; 103. Suction source; 104. Filter; 105. Dust collection chamber;

[0033] 10. Filter bracket; 11. Inner cavity; 12. Main body; 13. Connecting part;

[0034] 21. Self-cleaning port; 22. Suction port; 23. Self-cleaning channel;

[0035] 30. Rib plate; 30a. First rib plate; 30b. Second rib plate;

[0036] 40. Blocking part;

[0037] 50. Water-insulating cup;

[0038] 60. Clean airflow inlet;

[0039] 70. Gap. Detailed Implementation

[0040] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any modifications to the mechanism, method, or function made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0041] The terms used herein, such as "up," "down," "left," "right," "front," and "back," indicating spatial relative position, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims. Furthermore, the descriptive term "horizontal" used herein is not entirely equivalent to being perpendicular to the direction of gravity, and allows for a certain angle of inclination.

[0042] like Figure 1-7 As shown, one embodiment of the present invention provides a vacuum cleaner 100. The vacuum cleaner 100 includes a filter 104 and a filter holder 10. The filter 104 is cylindrical and is circumferentially mounted around the periphery of the filter holder 10, thereby forming a circumferential gap 70 between the outer surface of the filter holder 10 and the inner surface of the filter 104.

[0043] When the vacuum cleaner 100 is working, the filter 104 can filter dust and other impurities in the dust-laden airflow sucked up by the vacuum cleaner 100. After the vacuum cleaner 100 has been used for a long time, a lot of dust and other impurities will accumulate on the filter 104. The filter 104 needs to be cleaned in time to ensure the normal operation of the vacuum cleaner 100.

[0044] The filter support 10 is provided with a cleaning airflow inlet 60, which is used to allow the cleaning airflow to enter the gap 70. After the cleaning airflow enters the gap 70 through the cleaning airflow inlet 60, at least a portion of it will be blown toward the filter 104, thereby blowing off dust and other impurities on the filter 104 and cleaning the filter 104.

[0045] In this embodiment, at least one stiffener 30 is also provided on the filter support 10. The stiffener 30 is located on the periphery of the filter support 10 and extends along the height direction of the filter support 10. The clean airflow entering the gap 70 from the clean airflow inlet 60 can flow through the gap 70 along the height direction under the guidance of the stiffener 30, so as to clean the filter 104. The height direction of the filter support 10 is when the filter support 10 is in the position of the filter support 10. Figure 3 The up and down directions in the shown state.

[0046] In the vacuum cleaner 100 provided in this embodiment, the cleaning airflow entering the gap 70 from the cleaning airflow inlet 60 will flow regularly along the height direction of the filter bracket 10 under the guidance of the rib plate 30, avoiding the disorderly flow of the cleaning airflow within the gap 70. The cleaning airflow can effectively blow off dust and other impurities on the filter 104, and the cleaning airflow can flow through a large area of ​​the filter 104 along the height direction of the filter bracket 10, ensuring that the cleaning airflow can clean a large surface of the filter 104 and ensuring the cleaning effect of the filter 104.

[0047] In this embodiment, there are at least two stiffeners 30. These at least two stiffeners 30 divide the gap 70 into multiple self-cleaning channels 23. The cleaning airflow passes through each self-cleaning channel 23 to clean the filter 104. After the at least two stiffeners 30 divide the gap 70 into multiple independent self-cleaning channels 23, the cleaning airflow can flow orderly within each self-cleaning channel 23 without flowing turbulently in the gap 70. Furthermore, the cleaning airflow can be blown from the multiple self-cleaning channels 23 to different areas of the filter 104, improving the cleaning effect on the filter 104.

[0048] A clean airflow inlet 60 is formed at one end of the filter support 10 and is spaced to form multiple self-cleaning ports 21. The number of self-cleaning ports 21 is the same as the number of self-cleaning channels 23, and each self-cleaning channel 23 is connected to a corresponding self-cleaning port 21. In the above arrangement, the clean airflow inlet 60 is spaced to form multiple self-cleaning ports 21, and the multiple self-cleaning ports 21 and multiple self-cleaning channels 23 correspond one-to-one, so that each self-cleaning channel 23 can be supplied with clean airflow, thereby ensuring the cleaning effect on the filter 104.

[0049] The filter holder 10 includes a cylindrical main body 12 and a connecting portion 13 located around the periphery of the main body 12. The aforementioned cleaning airflow inlet 60 is formed between the main body 12 and the connecting portion 13. The connecting portion 13 is used to connect with other parts of the vacuum cleaner 100 (e.g., the lower cover of the head) so that the filter holder 10 can be fixed in a predetermined position of the vacuum cleaner 100. By forming the cleaning airflow inlet 60 between the main body 12 and the connecting portion 13, the original structure of the filter holder 10 is fully utilized, making the structure of the vacuum cleaner 100 more compact.

[0050] In this embodiment, a suction port 22 is provided on the periphery of the main body 12, and the suction port 22 communicates with the gap 70. The vacuum cleaner 100 also includes a suction source 103 that communicates with the suction port 22. The suction source 103 is used to provide suction to the vacuum cleaner 100 so that the vacuum cleaner 100 can suck up external dirt, and it is usually a suction motor.

[0051] The filter 104 is located inside the dust collection chamber 105 of the vacuum cleaner 100. When the suction source 103 is working, the dust-laden airflow (including airflow containing external dirt) can be sucked into the dust collection chamber 105. Then, the dust-laden airflow will pass through the filter 104, the gap 70, and the suction port 22 in sequence before being sucked to the suction source 103. When the dust-laden airflow passes through the filter 104, the filter 104 will filter out dust and other impurities in the dust-laden airflow, preventing dust and other impurities from entering the suction source 103, thereby ensuring that the vacuum cleaner 100 can work normally. Figure 2 Path S2 in the diagram illustrates the flow path of the dust-laden airflow.

[0052] The vacuum cleaner 100 includes a flap 102 located in the airflow channel 101. By rotating the flap 102, the airflow channel 101 inside the machine head can be opened and closed. When the airflow channel 101 is open, the cleaning airflow enters the gap 70 through the cleaning airflow inlet 60, thereby cleaning the filter 104. Part of the cleaning airflow entering the gap 70 from the cleaning airflow inlet 60 blows towards the filter 104 to clean it. Due to the continuous operation of the suction source 103, the other part of the cleaning airflow is sucked to the suction source 103 through the suction port 22. Figure 1 and Figure 3 Path S1 in the diagram illustrates the flow path of the clean airflow.

[0053] As can be seen, the vacuum cleaner 100 in this embodiment has two working states: a dust collection state and a self-cleaning state. When the vacuum cleaner 100 is in the dust collection state, it can suck up dirt from the outside. At this time, the suction source 103 is working. When the suction head of the vacuum cleaner 100 is aimed at the dirt from the outside, the airflow from the outside will carry the dirt to form a dust-laden airflow, which will be sucked into the suction head and flow into the dust collection chamber 105 through the pipe connecting the suction head and the dust collection chamber 105. After that, the dust-laden airflow will pass through the filter 104 and be sucked to the suction source 103.

[0054] When the vacuum cleaner 100 is in self-cleaning mode, it does not suck up dirt from the outside. Instead, it draws the existing cleaning airflow inside the head cavity or the cleaning airflow from the outside of the head into the gap 70 through the cleaning airflow inlet 60, thereby cleaning the filter 104. The vacuum cleaner 100 is provided with an airflow channel 101 connecting the self-cleaning airflow inlet 60 and the outside of the vacuum cleaner 100. When the vacuum cleaner 100 is in dust collection mode, the airflow channel 101 is closed. When the vacuum cleaner 100 is in self-cleaning mode, the airflow channel 101 is opened, allowing the external cleaning airflow to pass through the airflow channel 101 and the cleaning airflow inlet 60 sequentially into the gap 70. Part of the cleaning airflow entering the gap 70 is blown toward the filter 104 to clean the filter, and the other part is sucked to the suction source 103 through the suction port 22.

[0055] Furthermore, an inner cavity 11 is formed within the filter support 10. The aforementioned suction port 22 is formed on the side wall of the inner cavity 11. When the suction source 103 is working, the airflow within the gap 70 can be drawn into the inner cavity 11 through the suction port 22, and then drawn to the suction source 103.

[0056] The vacuum cleaner 100 also includes a water-separating cup 50 located at the bottom of the inner cavity 11. When the vacuum cleaner 100 is operating, it may suck in dirty solution, forming liquid accumulation in the inner cavity 11. The water-separating cup 50, located in the inner cavity 11, floats on the water surface and rises with the water level. When the water level rises to a certain height, the water-separating cup 50 can block the air inlet of the suction source 103, thereby preventing water from entering the suction source 103 and causing damage.

[0057] In this embodiment, the suction port 22 is positioned away from the water-insulating cup 50. This minimizes the impact of airflow entering the inner cavity 11 through the suction port 22 on the water-insulating cup 50, preventing the water-insulating cup from impacting the water-insulating cup 50 and causing it to rise, thus affecting the normal operation of the suction source 103. The water-insulating cup 50 is located at the bottom of the inner cavity 11, and the suction port 22 is positioned away from it. This also minimizes the impact of airflow entering the inner cavity 11 through the suction port 22 on the accumulated liquid in the inner cavity 11, preventing the accumulated liquid from being sucked into the suction source 103.

[0058] Specifically, the suction port 22 is located between the self-cleaning port 21 and the water-insulating cup 50 in the height direction of the filter bracket 10. In this way, the suction port 22 and the water-insulating cup 50 will not overlap in the height direction of the filter bracket 10. The self-cleaning port 21, the suction port 22 and the water-insulating cup 50 are arranged sequentially along the height direction of the filter bracket 10, and the structure is reasonably arranged.

[0059] like Figures 4-7As shown, in this embodiment, multiple suction ports 22 are spaced apart along the circumferential direction of the main body 12, and multiple suction ports 22 and multiple self-cleaning channels 23 are alternately arranged along the circumferential direction of the filter support 10. With the above arrangement, the two sides adjacent to each other of the self-cleaning channel 23 are suction ports 22. After the cleaning airflow passes through the self-cleaning channel 23, it flows into the two adjacent suction ports 22 respectively. In this way, while the suction ports 22 and self-cleaning channels 23 are arranged compactly, the self-cleaning airflow can be distributed relatively evenly around the main body 12 when flowing within the gap 70, thereby ensuring the cleaning effect on all parts of the filter 104. Figure 7 The arrows in the diagram indicate the direction of airflow for the clean airflow within the self-cleaning channel 23.

[0060] It should be noted that multiple suction ports 22 and multiple self-cleaning channels 23 are arranged alternately along the circumferential direction of the filter bracket 10, indicating that the multiple self-cleaning channels 23 are spaced apart along the circumferential direction of the filter bracket 10, with a suction port 22 between two self-cleaning channels 23.

[0061] In this embodiment, the filter holder 10 also includes a blocking part 40 connected to the periphery of the main body 12. The blocking part 40 is located on the side of the suction port 22 near the self-cleaning port 21 in the height direction of the filter holder 10.

[0062] With the obstruction part 40 installed, the cleaning airflow cannot flow directly from the cleaning port 21 along the height direction of the filter support 10 to the suction port 22. Instead, it can only enter the self-cleaning channel 23 first, and after flowing through the self-cleaning channel 23, it flows to the two suction ports 22 adjacent to the self-cleaning channel 23. In this way, it is ensured that the self-cleaning airflow will not flow into the suction port 22 quickly and be sucked away by the suction source 103, but can flow within the gap 70 for a longer period of time, thereby ensuring the cleaning effect on the filter 104.

[0063] In this embodiment, as Figure 6-8 As shown, the plurality of stiffeners 30 include a plurality of first stiffeners 30a and a plurality of second stiffeners 30b arranged alternately along the circumferential direction of the filter support 10. The first stiffeners 30a are higher than the blocking portion 40, and the second stiffeners 30b are not higher than the blocking portion 40. The plurality of first stiffeners 30a divide the clean airflow inlet 60 into a plurality of self-cleaning ports 21.

[0064] In the above arrangement, multiple first stiffeners 30a and multiple second stiffeners 30b are alternately arranged along the circumferential direction of the filter support 10, indicating that a second stiffener 30b is provided between two adjacent first stiffeners 30a, and a first blocking part 40 is provided between two adjacent first stiffeners 30a. A self-cleaning port 21 is formed between two adjacent first stiffeners 30a. The plane perpendicular to the height direction of the filter support 10 is defined as the first plane. It can be seen that... Figure 6 In this configuration, the projected area of ​​the self-cleaning port 21 on the first plane is equal to the projected area of ​​the self-cleaning channel 23 connected to it on the first plane plus the projected area of ​​a blocking part 40 on the first plane. This configuration ensures that the self-cleaning channel 23 has sufficient air intake, which is beneficial for cleaning the filter 104. Figure 6 The arrows in the diagram indicate the direction of airflow for cleaning within the self-cleaning port 21, combined with... Figure 8 It can be seen that the second stiffener 30b does not block the clean airflow from entering the self-cleaning channel 23.

[0065] like Figure 9-10 As shown, in other embodiments of this utility model, the above-mentioned blocking part 40 may not be provided. The gap 70 is separated by at least two stiffeners 30 to form multiple self-cleaning channels 23, that is, a self-cleaning channel 23 is formed between any two adjacent stiffeners 30, and the cleaning airflow inlet is separated by multiple stiffeners 30 to form multiple self-cleaning ports 21.

[0066] In this embodiment, the number of suction ports 22 matches the number of self-cleaning channels 23, and the suction ports 22 are located on the side of the self-cleaning channel 23 away from the self-cleaning port 21 in the height direction of the filter bracket 10. In this way, the cleaning airflow flowing into the self-cleaning channel 23 needs to flow a sufficient distance in the gap 70 along the height direction of the filter bracket 10 before it is sucked away by the suction source 103 through the suction port 22, so that the cleaning airflow can effectively clean the filter 104.

[0067] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0068] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A vacuum cleaner, comprising: Filter; A filter holder, wherein the filter is circumferentially mounted around the periphery of the filter holder, thereby forming a circumferential gap between the outer surface of the filter holder and the inner surface of the filter; Its features are: The filter support is provided with a clean airflow inlet to provide clean airflow into the gap; The filter support is further provided with at least one stiffener located on the periphery of the filter support and extending along the height direction of the filter support, so as to guide the clean airflow entering from the clean airflow inlet to flow through the gap along the height direction to clean the filter.

2. The dustsucker according to claim 1, characterized in that, The number of ribs is at least two, and the at least two ribs divide the gap into multiple self-cleaning channels, through which the cleaning airflow passes to clean the filter.

3. The dustsucker according to claim 2, characterized in that, The clean airflow inlet is formed at one end of the filter bracket and is spaced to form multiple self-cleaning ports. The number of self-cleaning ports is the same as the number of self-cleaning channels, and each self-cleaning channel is connected to a corresponding self-cleaning port.

4. The dustsucker according to claim 3, characterized in that, The filter support includes a cylindrical main body and a mating part located around the periphery of the main body, with the clean airflow inlet formed between the main body and the mating part.

5. The dust cup according to claim 4, wherein The main body has a suction port on its periphery, and the vacuum cleaner also includes a suction source connected to the suction port; the dust-laden airflow is filtered by the filter and then sucked to the suction source through the suction port.

6. The dust cup according to claim 5, wherein The filter bracket has an inner cavity, and the vacuum cleaner also includes a water-insulating cup located at the bottom of the inner cavity, with the suction port located away from the water-insulating cup.

7. The dustsucker according to claim 6, characterized in that The suction port is located in the height direction between the self-cleaning port and the water-insulating cup.

8. The dust cup according to claim 6, wherein The suction ports are spaced apart along the circumferential direction of the filter bracket, and the suction ports and the self-cleaning channels are arranged alternately along the circumferential direction of the filter bracket.

9. The dust cup according to claim 7, wherein The filter holder also includes a blocking part connected to the periphery of the main body, the blocking part being located in the height direction on the side of the suction port near the self-cleaning port.

10. The dustsucker according to claim 9, characterized in that, The plurality of ribs include a plurality of first ribs and a plurality of second ribs arranged alternately along the circumferential direction of the filter bracket. The first ribs are higher than the blocking portion, and the second ribs are not higher than the blocking portion. The plurality of first ribs separate the cleaning airflow inlet into a plurality of self-cleaning ports.

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