Dust cup for a vacuum cleaner and vacuum cleaner

Abstract

The utility model discloses a dust cup and dust catcher, it includes the cup body with cup body cavity, the net cover subassembly for dust filtration in the cup body cavity is received, the secondary cyclone in the net cover subassembly and located downstream, and with the secondary cyclone is connected and is used for collecting dust's secondary dust catcher, wherein the net cover subassembly includes cover base, the cover inner chamber in cover base one end, the filter screen that sets up around cover inner chamber outside, and a plurality of air inlet ducts in cover inner chamber and located the secondary cyclone upstream. The utility model has the advantages of: improving secondary cyclone efficiency, improving secondary cyclone performance, and being conducive to miniaturization.

Description

Technical Field

[0001] This utility model relates to a dust cup for a vacuum cleaner and a vacuum cleaner. Background Technology

[0002] Currently, vacuum cleaners typically use a dust cup to solve the cyclone separation problem. However, handheld vacuum cleaners, due to their miniaturization, have a small cyclone space, and the air intake direction is parallel to the cyclone direction. A similar technology can be found in Chinese utility model patent CN202743210U. Because the primary cyclone effect of this technology is poor, a secondary cyclone is needed for secondary cyclone filtration. However, the air intake area of ​​the newly added secondary cyclone is limited, resulting in low secondary cyclone efficiency. Therefore, it is necessary to improve this technology. Utility Model Content

[0003] The purpose of this invention is to provide a dust cup and a vacuum cleaner that improve the efficiency and performance of the secondary cyclone and facilitate miniaturization.

[0004] The first technical solution of this utility model is: a dust cup for a vacuum cleaner and a vacuum cleaner, which includes a cup body having a cup cavity, a mesh cover assembly housed in the cup cavity for dust filtration, a secondary cyclone separator located in the mesh cover assembly and downstream, and a secondary dust collector connected to the secondary cyclone separator for collecting dust, wherein the mesh cover assembly includes a cover base, a cover inner cavity located at one end of the cover base, a filter screen arranged around the outer side of the cover inner cavity, and a plurality of air inlets located in the cover inner cavity and upstream of the secondary cyclone separator.

[0005] Based on this technical solution, the present invention further provides the following auxiliary technical solutions:

[0006] The base of the cover includes a base surface, a number of stepped portions extending from the base surface and corresponding to the air inlet duct, and a number of air inlet blades located on one side of the corresponding air inlet duct and defining the corresponding stepped portions.

[0007] The number of air inlet ducts, steps, and air inlet blades is at least three.

[0008] The upstream end of the air inlet duct is flush with the outer surface of the stepped portion.

[0009] The secondary cyclone separator includes a hollow cylindrical section at one end and a hollow conical section at the other end, wherein the conical section has a connection gap that communicates with the secondary dust collector.

[0010] The secondary dust collector includes a secondary dust collection chamber for collecting dust and a secondary bottom cover that is located at one end of the secondary dust collection chamber and can be opened and closed, wherein there is a gap between the secondary cyclone and the secondary bottom cover.

[0011] It also includes an air outlet component located at one end of the mesh assembly, wherein the air outlet component includes an air outlet pipe located in the secondary cyclone and an air outlet receiving chamber connected to the air outlet end of the air outlet pipe.

[0012] The conical portion includes a conical cavity located therein and open at one end, a conical body disposed at the open end of the conical cavity, and a plurality of connecting posts that are circumferentially spaced and connected to the conical body, wherein the connecting gap is located between two adjacent connecting posts.

[0013] The small end of the cone extends at least partially into the cone cavity, while the large end is away from the cone cavity.

[0014] The second technical solution of this utility model is: a vacuum cleaner, which includes a vacuum cleaner dust cup, a vacuum cleaner body connected to the vacuum cleaner dust cup, and a vacuum cleaner motor located in the vacuum cleaner body and downstream of the vacuum cleaner dust cup, wherein the vacuum cleaner dust cup is the vacuum cleaner dust cup described in the first technical solution, and the vacuum cleaner body includes a suction port located at one end and a handle located at the other end.

[0015] The advantages of this invention are: improved efficiency and performance of the secondary cyclone, and it is also conducive to miniaturization. Attached Figure Description

[0016] Figure 1 This is a perspective view of the first embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional view of the first embodiment of the present invention from one perspective;

[0018] Figure 3 This is a cross-sectional view of the first embodiment of the present invention from another perspective;

[0019] Figure 4 This is an exploded view of the first embodiment of the present invention;

[0020] Figure 5 This is a perspective view of the mesh assembly in the first embodiment of the present invention;

[0021] Figure 6 This is another perspective view of the mesh assembly in the first embodiment of the present invention;

[0022] Figure 7 This is a perspective view of the second embodiment of the present utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0025] Example: Figure 1-6 As shown, this utility model discloses a dust cup for a vacuum cleaner and a first embodiment of the vacuum cleaner, which includes: a cup body 1000 having a cup cavity 1020, a mesh cover assembly 1200 housed in the cup cavity 1020 and used for dust filtration, a secondary cyclone separator 1250 located in the mesh cover assembly 1200 and downstream, a secondary dust collector 1300 connected to the secondary cyclone separator 1250 and used for collecting dust, a cup cover 1500 located at one end of the cup body 1000 and covering one end of the cup cavity 1020, and a cup filter element 1600 located at the other end of the cup body 1000 and downstream of the secondary cyclone separator 1250.

[0026] The cup body 1000 is cylindrical and hollow inside, and has a cup body air inlet 1024 that communicates with the cup body cavity 1020. The cup body air inlet 1024 is adjacent to the cup body filter 1600 and is far away from the cup body cover 1500.

[0027] The mesh cover assembly 1200 includes a cover base 1210, a spiral channel 1220 connected to and spaced apart from the cover base 1210 and communicating with the air inlet 1024 of the cup body, a cover inner cavity 1230 located at one end of the cover base 1210, a plurality of spacers 1235 circumferentially spaced within the cover inner cavity 1230, a filter 1240 surrounding the outer side of the cover inner cavity 1230, and a plurality of air inlets 1236 located within the cover inner cavity 1230 and upstream of the secondary cyclone separator 1250. The cover base 1210 includes a base opening 1214 located on the periphery, a base surface 1232, a plurality of stepped portions 1234 extending from the base surface 1232 and corresponding to the air inlets 1236, and a plurality of air inlet blades 1237 located on one side of the corresponding air inlet 1236 and defining the corresponding stepped portion 1234. The number of the spacer 1235, the air inlet duct 1236, the step 1234, and the air inlet blade 1237 is at least three. The upstream end of the air inlet duct 1236 is flush with the outer surface of the step 1234. The spacer 1235 defines the air inlet end of the air inlet duct 1236 and the step 1234.

[0028] The secondary cyclone separator 1250 includes a hollow cylindrical portion at one end and a hollow conical portion 1260 at the other end, wherein the conical portion 1260 has a connecting gap 1269 communicating with the secondary dust collector 1300. The conical portion 1260 includes a conical cavity 1264 located therein and open at one end, a conical body 1266 disposed at the open end of the conical cavity 1264, and a plurality of circumferentially spaced connecting posts 1268 connecting the conical bodies 1266, wherein the connecting gap 1269 is located between two adjacent connecting posts 1268. The smaller end of the conical body 1266 extends at least partially into the conical cavity 1264, while the larger end is away from the conical cavity 1264.

[0029] The secondary dust collector 1300 includes a secondary dust collection chamber 1320 for collecting dust, and a secondary bottom cover 1340 that is located at one end of the secondary dust collection chamber 1320 and can be opened and closed, wherein there is a gap between the secondary cyclone separator 1250 and the secondary bottom cover 1340. Several protrusions are provided on the periphery of the secondary dust collector 1300 to engage with the base opening 1214.

[0030] This embodiment also includes an air outlet 1400 located at one end of the mesh assembly 1200, wherein the air outlet 1400 includes an air outlet pipe 1420 located within the secondary cyclone separator 1250, and an air outlet receiving chamber 1440 connected to the air outlet end of the air outlet pipe 1420 and housing the cup filter 1600. The air outlet 1400 is located downstream of the secondary cyclone separator 1250 and upstream of the cup filter 1600.

[0031] The cup filter element 1600 is cylindrical and detachable, preferably HEPA.

[0032] Based on the first embodiment, combined with Figure 7 As shown, this utility model discloses a second embodiment of a vacuum cleaner, which includes a vacuum cleaner dust cup 100, a vacuum cleaner body 200 connected to the vacuum cleaner dust cup 100, a vacuum cleaner motor located within the vacuum cleaner body 200 and downstream of the vacuum cleaner dust cup 100, and a battery pack supplying power to the vacuum cleaner motor. The vacuum cleaner dust cup 100 is the same as the vacuum cleaner dust cup in the first embodiment, and the vacuum cleaner body 200 includes a suction port 220 at one end and a handle 240 at the other end. The battery pack is located within the handle 240.

[0033] During operation, the dust-laden airflow enters the cup cavity 1020 through the air inlet 1024 and undergoes a primary cyclone. Large dust particles fall to the outside of the cup cavity 1020 under the action of centrifugal force, while fine dust particles enter the inner cavity 1230 of the cover through the filter screen 1240, and then enter multiple air inlets 1236. Due to the gap between the stepped part 1234 and the base surface 1232, not only can the secondary air inlet area be increased, but the entry of dust is also prevented. Then, the airflow undergoes a secondary cyclone through the cylindrical part and the conical part 1260 of the secondary cyclone separator 1250. Fine dust particles enter the secondary dust collection chamber 1320 through the connecting gap 1269, and the secondary dust is cleaned by opening the secondary bottom cover 1340. The airflow after the secondary cyclone then enters the cup filter element 1600 through the air outlet 1420 for further filtration, and finally enters the vacuum motor and is discharged to the outside.

[0034] The advantages of this invention are: improved efficiency and performance of the secondary cyclone, and it is also conducive to miniaturization.

[0035] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A dust cup for a vacuum cleaner, characterized in that... It includes a cup body (1000) having a cup cavity (1020), a mesh assembly (1200) housed within the cup cavity (1020) for dust filtration, a secondary cyclone separator (1250) located within and downstream of the mesh assembly (1200), and a secondary dust collector (1300) connected to the secondary cyclone separator (1250) for collecting dust. The mesh assembly (1200) includes a base (1210) and an inner hood located at one end of the base (1210). The chamber (1230), the filter (1240) arranged around the outer side of the inner chamber (1230), and the multiple air inlets (1236) located in the inner chamber (1230) and upstream of the secondary cyclone (1250); the secondary cyclone (1250) includes a hollow cylindrical part at one end and a hollow conical part (1260) at the other end, wherein the conical part (1260) has a connection gap (1269) communicating with the secondary dust collector (1300).

2. A dust cup for a vacuum cleaner according to claim 1, characterized in that: The base portion (1210) includes a base surface (1232), a plurality of stepped portions (1234) extending from the base surface (1232) and corresponding to the air inlet duct (1236), and a plurality of air inlet blades (1237) located on one side of the corresponding air inlet duct (1236) and defining the corresponding stepped portion (1234).

3. A dust cup for a vacuum cleaner according to claim 2, characterized in that: The number of the air inlet duct (1236), the step portion (1234), and the air inlet blade (1237) is at least 3.

4. A dust cup for a vacuum cleaner according to claim 3, characterized in that: The upstream end of the air inlet duct (1236) is flush with the outer surface of the stepped portion (1234).

5. A dust cup for a vacuum cleaner according to claim 1, 2, 3, or 4, characterized in that, The secondary dust collector (1300) includes a secondary dust collection chamber (1320) for collecting dust and a secondary bottom cover (1340) disposed at one end of the secondary dust collection chamber (1320) and openable and closable, wherein there is a gap between the secondary cyclone separator (1250) and the secondary bottom cover (1340).

6. A dust cup for a vacuum cleaner according to claim 1, characterized in that... It also includes an air outlet (1400) located at one end of the mesh assembly (1200), wherein the air outlet (1400) includes an air outlet pipe (1420) located in the secondary cyclone (1250) and an air outlet receiving chamber (1440) connected to the air outlet end of the air outlet pipe (1420).

7. A dust cup for a vacuum cleaner according to claim 1, characterized in that: The conical portion (1260) includes a conical cavity (1264) located therein and open at one end, a conical body (1266) disposed at the open end of the conical cavity (1264), and a plurality of connecting posts (1268) connected to the conical body (1266) and spaced apart circumferentially, wherein the connecting gap (1269) is located between two adjacent connecting posts (1268).

8. A dust cup for a vacuum cleaner according to claim 7, characterized in that: The small end of the cone (1266) extends at least partially into the cone cavity (1264), while the large end is away from the cone cavity (1264).

9. A vacuum cleaner, characterized in that... The device includes a vacuum cleaner dust cup (100), a vacuum cleaner body (200) connected to the vacuum cleaner dust cup (100), and a vacuum cleaner motor located inside the vacuum cleaner body (200) and downstream of the vacuum cleaner dust cup (100), wherein the vacuum cleaner dust cup (100) is the vacuum cleaner dust cup as described in claim 1, and the vacuum cleaner body (200) includes a suction port (220) at one end and a handle (240) at the other end.

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