Dust cup assembly and vacuum cleaner having the same

Abstract

The present invention relates to a dust cup assembly and a dust collector, comprising: a dust cup, in which an inner cavity communicating with the outside is opened; a separator, at least partially assembled in the inner cavity, and a dust collecting space is defined between the outer wall of the separator and the cavity wall of the inner cavity; and a barrier, which is connected to the separator and divides the dust collecting space into a separation cavity and a dust collecting cavity that are connected to each other; wherein the barrier comprises a blocking part and a guiding part circumferentially connected to the outer circumference of the separator, the blocking part comprises a head end and a tail end located on the same circumference and separately arranged, the guiding part is connected to one of the head end and the tail end, and the guiding part and the blocking part are inclinedly arranged to be located on the rotating path of the dust after separation; the dust separated in the separation cavity is deposited under the action of the guiding part, and is retained in the dust collecting cavity under the action of the blocking part. Due to the blocking effect of the barrier, it is not easy to enter the separation cavity from the dust collecting cavity again under the action of the dust raising of the cyclone, thereby improving the separation effect of gas and dust.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaners, and in particular to a dust cup assembly and a vacuum cleaner having the same. Background Art

[0002] As people's living standards improve, vacuum cleaners are increasingly used in daily life. Among them, handheld vacuum cleaners are widely used because of their small size, convenience in carrying and use.

[0003] In a conventional handheld vacuum cleaner, the separated dust is easily lifted up and separated again by the dust raising action of the cyclone, resulting in poor air-dust separation effect of the handheld vacuum cleaner. Summary of the invention

[0004] Based on this, it is necessary to provide a dust cup assembly with better separation effect and a handheld vacuum cleaner having the same to address the problem of poor air-dust separation effect of traditional handheld vacuum cleaners.

[0005] A dust cup assembly, comprising:

[0006] A dust cup, which has an inner cavity connected to the outside;

[0007] A separator is at least partially assembled in the inner cavity, and a dust collecting space is defined between an outer wall of the separator and a cavity wall of the inner cavity; and

[0008] A barrier element is connected to the separator and divides the dust collecting space into a separation chamber and a dust collecting chamber that are interconnected;

[0009] The blocking member includes a blocking portion and a guiding portion circumferentially coupled to the outer circumference of the separator, the blocking portion includes a head end and a tail end located on the same circumference and separately arranged, the guiding portion is connected to one of the head end and the tail end, and the guiding portion and the blocking portion are inclinedly arranged to be located on the rotation path of the separated dust;

[0010] The dust generated by separation in the separation chamber is deposited under the action of the guide portion, and is retained in the dust collecting chamber under the action of the blocking portion.

[0011] In one embodiment, the separator is provided with an air inlet, an air inlet, an air outlet, and an air flow channel connected between the air inlet and the air outlet;

[0012] The air inlet and the wind inlet are both located in the separation chamber, and the air inlet is connected between the outside and the separation chamber to form a tangential airflow;

[0013] The gas separated in the separation chamber enters the air flow channel through the air inlet and is discharged from the air outlet.

[0014] In one of the embodiments, the tail end and the head end of the blocking portion are arranged in sequence along the cyclone direction, and the guiding portion is arranged at the tail end.

[0015] In one of the embodiments, a dust inlet is formed between the guide portion and the head end.

[0016] In one embodiment, the barrier is sealed between the separator and the dust cup.

[0017] In one of the embodiments, the inner circumference of the barrier is fixedly connected to the separator, and the outer circumference of the barrier is interference fit with the inner wall of the dust cup.

[0018] In one embodiment, the barrier member includes a first barrier portion and a second barrier portion, the inner peripheral side of the first barrier portion is fixedly connected to the separator, and the second barrier portion is matched to the outer peripheral side of the first barrier portion and has an interference fit with the inner wall of the dust cup;

[0019] Wherein, the hardness of the first barrier portion is greater than the hardness of the second barrier portion.

[0020] In one embodiment, the second blocking portion is formed of a soft material.

[0021] In one of the embodiments, the dust cup includes a disassembly opening for disassembling the separator, and the disassembly opening is located downstream of the blocking member along the disassembly direction of the separator.

[0022] A vacuum cleaner comprises a dust cup assembly as described in any one of the above items.

[0023] In the above-mentioned dust cup assembly and vacuum cleaner, the dust generated by separation in the separation chamber is deposited along the barrier from the separation chamber and retained in the dust collecting chamber. Due to the barrier effect of the barrier, it is not easy for the dust to enter the separation chamber again from the dust collecting chamber under the action of the cyclone, thereby improving the separation effect of gas and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 An assembly diagram of a dust cup assembly provided in one embodiment of the present invention;

[0025] Figure 2 for Figure 1 An exploded view of the dust cup assembly shown in ;

[0026] Figure 3 for Figure 1 A structural diagram of the dust cup assembly shown in FIG. 1 when the separator is removed from the dust cup;

[0027] Figure 4An assembly diagram of a separator and a barrier member of a dust cup assembly provided in another embodiment of the present invention;

[0028] Figure 5 for Figure 4 A structural diagram of a dust cup assembly provided in the embodiment shown in ;

[0029] Figure 6 for Figure 5 A structural diagram of the dust cup assembly shown in FIG. 1 when the separator is removed from the dust cup;

[0030] Figure 7 for Figure 5 Exploded view of the dust cup assembly shown in .

[0031] Dust cup assembly 100 dust cup 10 first opening 12 inner cavity 13 separator 20 air inlet 21 air inlet 22 air outlet 23 air flow channel 24 separator body 25 filter 26 dust collecting space 30 separation cavity 31 dust collecting cavity 32 barrier 40 first barrier 42 second barrier 43 dust inlet end 44 dust outlet end 45 barrier 46 head end 461 tail end 462 first barrier 463 second barrier 464 guide 47 first guide 471 second guide 472 dust inlet 50 DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] See also Figure 1An embodiment of the present invention provides a vacuum cleaner, including a main body (not shown) and a dust cup assembly 100, the dust cup assembly 100 is connected to the main body, and the main body includes a shell, a motor and blades. The motor and the blades are accommodated in the shell, the blades are connected to the driving shaft of the motor, and the dust cup assembly 100 is connected to the shell. During the vacuuming process, the rotation of the motor drives the blades to rotate to generate negative pressure, and the external dust-carrying gas is sucked into the dust cup assembly 100 under the action of the negative pressure. The dust-carrying gas entering the dust cup assembly 100 forms a rotating airflow under the action of the cyclone generated by the motor, and realizes gas-dust separation under the action of centrifugal force.

[0036] See also Figure 1 and Figure 2 The dust cup assembly 100 includes a dust cup 10 and a separator 20. An inner cavity 13 is provided in the dust cup 10. The inner cavity 13 has an opening (not shown) communicating with the outside. The separator 20 is at least partially assembled in the inner cavity from the opening. A dust collecting space 30 is defined between the outer wall of the separator 20 and the wall of the inner cavity 13.

[0037] Specifically, the separator 20 is provided with an air inlet 21, an air inlet 22, an air outlet 23 and an air flow channel 24. The air inlet 21 is connected between the outside and the dust collecting space 30 to form a tangential airflow. The air inlet 22 is connected between the dust collecting space 30 and the inlet end of the air flow channel 24. The outlet end of the air flow channel 24 is connected to the air outlet 23. Under the negative pressure generated by the rotation of the blades driven by the motor, the dust-carrying gas enters the dust collecting space 30 tangentially from the air inlet 21 (the air inlet 21 has the function of changing the direction of the dust-carrying gas. When the dust-carrying gas from the outside enters the dust collecting space 30 through the air inlet 21, the direction of the dust-carrying gas changes to the tangential direction of the separator 20), and forms a rotating airflow under the cyclone generated by the motor, and realizes gas-dust separation under the action of centrifugal force. After separation, the dust gathers in the dust collecting space 30. After separation, the gas flows to the air flow channel 24 through the air inlet 22, and flows to the outside through the air outlet 23.

[0038] It is understandable that in other embodiments, the separator 20 may not be arranged in the above manner, which is not limited here.

[0039] The dust cup assembly 100 also includes a barrier 40, which is connected to the separator 20 and divides the dust collecting space 30 into a separation chamber 31 and a dust collecting chamber 32 that are interconnected. The separation chamber 31 is directly connected to the air inlet 21 and the air inlet 22, and the dust collecting chamber 32 is indirectly connected to the air inlet 21 and the air inlet 22 through the separation chamber 31. The dust separated by the separation chamber 31 is deposited along the barrier 40 by the separation chamber 31 and retained in the dust collecting chamber 32.

[0040] Since the barrier 40 divides the dust collecting space 30 into a separation chamber 31 and a dust collecting chamber 32 which are interconnected, when the vacuum cleaner is working, the separated dust first enters the separation chamber 31, and enters the dust collecting chamber 32 under the guidance of the barrier 40. After the dust enters the dust collecting chamber 32, it is deposited and retained in the dust collecting chamber 32 due to the barrier effect of the barrier 40. It is not easy for the dust to enter the separation chamber 31 again from the dust collecting chamber 32 under the action of the dust raising of the cyclone, thereby improving the gas-dust separation effect of the vacuum cleaner.

[0041] Specifically, along the gravity direction, the dust collecting chamber 32 is located below the separation chamber 31 . At this time, dust will enter the dust collecting chamber 32 from the separation chamber 31 under the dual effects of the cyclone and gravity.

[0042] In one embodiment, for ease of installation and aesthetic effect, the dust cup 10 is a cylindrical structure, and a first opening 12 is formed at one end of the dust cup 10, and the separator 20 is at least partially assembled in the inner cavity 13 from the first opening 12 and can be taken out from the first opening 12. It can be understood that in other embodiments, the dust cup 10 can also be a hollow prismatic structure, which is not limited here.

[0043] Specifically, the separator 20 is completely assembled in the inner cavity 13 of the dust cup 10, the air inlet 21 of the separator 20 is connected to the outside through the first opening 12 of the dust cup 10, and the air outlet 23 of the separator 20 is connected to the inner channel of the shell through the first opening 12 of the dust cup 10. It can be understood that in other embodiments, the separator 20 can also be partially assembled in the inner cavity, the air inlet 21 of the separator 20 is connected to the outside through the first opening 12 of the dust cup 10, part of the separator 20 passes through the first opening 12 of the dust cup 10, and the air outlet 23 of the separator 20 is directly connected to the inner channel of the shell, which is not limited here.

[0044] Specifically, in order to ensure that the shape of the separator 20 matches the shape of the dust cup 10, the separator 20 is also a cylindrical structure. It can be understood that in some other embodiments, the shape of the separator 20 is not limited.

[0045] In one embodiment, in order to prevent dust from overflowing to the outside from the gap between the separator 20 and the dust cup 10 after entering the dust collecting space 30, a seal is provided at the contact point between the separator 20 and the dust cup 10, thereby preventing dust from overflowing from the gap between the two. Specifically, the dust cup assembly 100 further includes a sealing ring, which is sleeved at both ends of the separator 20 in the axial direction, and the sealing ring is located between the separator 20 and the dust cup 10 to ensure the sealing effect between the separator 20 and the dust cup 10.

[0046] In one embodiment, the separator 20 includes a separator body 25 and a filter 26. The air inlet 21, the air inlet 22, the air outlet 23 and the air flow channel 24 are all provided on the separator body 25. The filter 26 is provided in the air inlet 22 for filtering dust. That is, the separated gas first passes through the filter 26 for filtering and then flows to the air flow channel 24, so as to prevent the gas flowing from the air outlet 23 to the outside from carrying dust.

[0047] See also Figure 3 In one embodiment, the barrier 40 has a dust inlet end 44 and a dust outlet end 45. Along the gravity direction, the dust outlet end 45 is located below the dust inlet end 44. The dust inlet end 44 and the dust outlet end 45 are circumferentially staggered, so that the barrier 40 forms a channel that prompts dust to slide down from the separation chamber 31 to the dust collecting chamber 32, thereby facilitating dust to enter the dust collecting chamber 32 from the separation chamber 31.

[0048] Specifically, the dust inlet end 44 and the dust outlet end 45 at least partially overlap in the gravity direction, and define a tortuous dust passage therebetween, thereby preventing dust from re-entering the separation chamber 31 from the dust collecting chamber 32 under the action of the cyclone.

[0049] Furthermore, the barrier 40 is spirally disposed outside the separator body 25, and the spiral direction of the barrier 40 is the same as the spiral direction of the cyclone, so that the dust is easily guided from the separation chamber 31 into the dust collection chamber 32. It can be understood that in some other embodiments, the barrier 40 can also be other shapes, which are not limited here.

[0050] See also Figure 1 In one embodiment, the barrier 40 is arranged in a strip shape, that is, the barrier 40 is a strip structure, and the barrier 40 of the strip structure is spirally arranged outside the separator body 25. It can be understood that in other embodiments, the barrier 40 can also include at least two sub-barriers arranged separately, and all the sub-barriers are arranged spirally outside the separator body 25 at intervals, which is not limited here.

[0051] Specifically, in order to prevent dust in the dust collecting chamber 32 from entering the separation chamber 31 from the gap between the barrier 40 and the separator body 25 and from the gap between the barrier 40 and the dust cup 10, the barrier 40 is provided to be sealed between the separator 20 and the dust cup 10.

[0052] See also Figure 3The first opening 12 forms a disassembly port for disassembling the separator 20. The disassembly port is located downstream of the barrier 40 along the disassembly direction of the separator 20. The inner peripheral side of the barrier 40 is fixedly connected to the separator body 25, and the outer peripheral side of the barrier 40 is interference fit with the inner wall of the dust cup 10. In this way, when the separator 20 is taken out of the dust cup 10, the barrier 40 can also act as a dust scraper to bring the dust in the separation chamber 31 out to the outside.

[0053] See also Figure 2 Specifically, the barrier 40 includes a first barrier portion 42 and a second barrier portion 43. The inner peripheral side of the first barrier portion 42 is fixedly connected to the separator body 25. The second barrier portion 43 is matched to the outer peripheral side of the first barrier portion 42 and is interference fit with the inner wall of the dust cup 10. The hardness of the second barrier portion 43 is lower than that of the first barrier portion 42. Since the first barrier portion 42 is relatively hard, the barrier 40 can be prevented from breaking when the separator 20 drives the barrier 40 to separate from the dust cup 10; and since the second barrier portion 43 is relatively soft, the inner wall of the dust cup 10 can be prevented from being scratched when the separator 20 drives the barrier 40 to separate from the dust cup 10. More specifically, the second barrier portion 43 covers the entire outer surface of the first barrier portion 42, thereby further preventing the separator 20 from scratching the inner wall of the dust cup 10 when the separator 20 drives the barrier 40 to separate from the dust cup 10.

[0054] More specifically, the second blocking portion 43 is made of a soft material, such as rubber, so as to further prevent the second blocking portion 43 from scratching the inner wall of the dust cup 10 when the separator 20 is taken out of the dust cup 10.

[0055] See also Figure 4 In another embodiment, the blocking member 40 includes a blocking portion 46 and a guiding portion 47 circumferentially coupled to the outer circumference of the separator 20, the blocking portion 46 includes a head end 461 and a tail end 462 located on the same circumference and separately arranged, the guiding portion 47 is connected to one of the head end 461 and the tail end 462, and the guiding portion 47 and the blocking portion 46 are inclinedly arranged to be located on the rotating path of the dust after separation, the dust generated by the separation in the separation chamber 31 is deposited under the action of the guiding portion 47, and is retained in the dust collecting chamber 32 under the action of the blocking portion 46.

[0056] Specifically, the tail end 462 and the head end 461 of the blocking portion 46 are sequentially arranged along the cyclone direction, and the guide portion 47 is arranged at the tail end 462. When the dust rotates from the tail end 462 of the blocking portion 46 to the head end 461, it will touch the guide portion 47, and the rotation path of the dust is changed. Under the guidance of the guide portion 47, the dust enters the dust collecting chamber 32 from the separation chamber 31.

[0057] More specifically, a dust inlet 50 is formed between the guide portion 47 and the head end 461 , and dust enters the dust collecting chamber 32 from the dust inlet 50 through the separation chamber 31 under the guidance of the guide portion 47 .

[0058] In one embodiment, the blocking portion 46 is integrally arranged in a strip shape, and the strip-shaped blocking portion 46 is arranged outside the separator body 25. It can be understood that in other embodiments, the blocking portion 46 can also include at least two sub-blocking portions 46 that are separately arranged, and all the sub-blocking portions 46 are arranged around each other outside the separator body 25, which is not limited here.

[0059] See also Figure 5 and Figure 6 As in the previous embodiment, the inner circumference of the barrier 40 is fixedly connected to the separator body 25, and the outer circumference of the barrier 40 is interference fit with the inner wall of the dust cup 10, so that when the separator 20 is taken out of the dust cup 10 through the disassembly port (first opening 12), the barrier 40 can also act as a dust scraper to bring the dust in the separation chamber 31 out to the outside.

[0060] See also Figure 7 In this embodiment, the blocking portion 46 includes a first blocking portion 463 and a second blocking portion 464. The inner circumference of the first blocking portion 463 is fixedly connected to the separator body 25. The second blocking portion 464 is matched with the outer circumference of the first blocking portion 463 and has an interference fit with the inner wall of the dust cup 10. The hardness of the second blocking portion 464 is lower than the hardness of the first blocking portion 463. The guide portion 47 includes a first guide portion 471 and a second guide portion 472. The inner circumference of the first guide portion 471 is fixedly connected to the separator body 25. The second guide portion 472 is matched with the outer circumference of the first guide portion 471 and has an interference fit with the inner wall of the dust cup 10. The first guide portion 471 is connected to the first blocking portion 463 to form the first blocking portion 42. The second guide portion 472 is connected to the second blocking portion 464 to form the second blocking portion 43. The hardness of the second guide portion 472 is lower than the hardness of the first guide portion 471. Since the first blocking portion 463 and the first guiding portion 471 are relatively hard, the blocking member 40 can be prevented from breaking when the separator 20 drives the blocking member 40 to separate from the dust cup 10; and since the second blocking portion 464 and the second guiding portion 472 are relatively soft, the inner wall of the dust cup 10 can be prevented from being scratched when the separator 20 drives the blocking member 40 to separate from the dust cup 10. More specifically, the second blocking portion 464 and the second guiding portion 472 are made of a soft material, such as rubber, so as to further prevent the second blocking portion 464 and the second guiding portion 472 from scratching the inner wall of the dust cup 10 when the separator 20 is taken out of the dust cup 10.

[0061] The embodiment of the present invention also provides a vacuum cleaner (not shown), which has all the technical features of the above-mentioned dust cup assembly 100 and thus has the same technical effect as the above-mentioned dust cup assembly 100.

[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A dust cup assembly, characterized in that: include: A dust cup (10) having an inner cavity (13) communicating with the outside; A separator (20) is at least partially assembled in the inner cavity (13), and a dust collecting space (30) is defined between an outer wall of the separator (20) and a cavity wall of the inner cavity (13); and A barrier (40) is connected to the separator (20) and divides the dust collecting space (30) into a separation chamber (31) and a dust collecting chamber (32) which are interconnected; the barrier (40) is sealingly arranged between the separator (20) and the dust cup (10); the barrier (40) comprises a first barrier portion (42) and a second barrier portion (43); the inner peripheral side of the first barrier portion (42) is fixedly connected to the separator (20); the second barrier portion (43) is connected to the outer peripheral side of the first barrier portion (42) and is interference fit with the inner wall of the dust cup (10); the hardness of the first barrier portion (42) is greater than the hardness of the second barrier portion (43); The blocking member (40) comprises a blocking portion (46) and a guiding portion (47) which are circumferentially matched to the outer circumference of the separator (20); the blocking portion (46) comprises a head end (461) and a tail end (462) which are located on the same circumference and are separately arranged; the guiding portion (47) is connected to one of the head end (461) and the tail end (462); and the guiding portion (47) and the blocking portion (46) are inclinedly arranged to be located on the rotation path of the separated dust; The dust generated by separation in the separation chamber (31) is deposited under the action of the guide portion (47) and is retained in the dust collecting chamber (32) under the action of the blocking portion (46).

2. The dust cup assembly according to claim 1, characterized in that: The separator (20) is provided with an air inlet (21), an air inlet (22), an air outlet (23), and an air flow channel (24) communicating between the air inlet (22) and the air outlet (23); The air inlet (21) and the air inlet (22) are both located in the separation chamber (31), and the air inlet (21) is connected between the outside and the separation chamber (31) to form a tangential airflow; The gas separated in the separation chamber (31) enters the air flow channel (24) through the air inlet (22) and is discharged through the air outlet (23).

3. The dust cup assembly according to claim 1, characterized in that: The tail end (462) and the head end (461) of the blocking portion (46) are arranged in sequence along the cyclone direction, and the guiding portion (47) is arranged at the tail end (462).

4. The dust cup assembly according to claim 3, characterized in that: A dust inlet is formed between the guide portion (47) and the head end (461).

5. The dust cup assembly according to claim 1, characterized in that: The inner peripheral side of the barrier (40) is fixedly connected to the separator (20), and the outer peripheral side of the barrier (40) is interference-fitted with the inner wall of the dust cup (10).

6. The dust cup assembly according to claim 1, characterized in that: The second blocking portion (43) is formed of a soft material.

7. The dust cup assembly according to claim 6, characterized in that: The dust cup (10) comprises a disassembly opening for disassembling the separator (20), and the disassembly opening is located downstream of the blocking member (40) along the disassembly direction of the separator (20).

8. A vacuum cleaner, characterized in that: Comprising a dust cup assembly as described in any one of claims 1-7.

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