CN107997674B

CN107997674B - Hand-held vacuum cleaner

Info

Publication number: CN107997674B
Application number: CN201810063895.1A
Authority: CN
Inventors: 卞庄
Original assignee: Suzhou EUP Electric Co Ltd
Current assignee: Suzhou EUP Electric Co Ltd
Priority date: 2018-01-23
Filing date: 2018-01-23
Publication date: 2020-07-03
Anticipated expiration: 2038-01-23
Also published as: CN107997674A

Abstract

The invention relates to a hand-held vacuum cleaner, comprising: a short gas suction pipe; a cyclonic separating apparatus; a suction motor device for generating a vacuum suction force at the suction nozzle stub, the suction motor device being located at a rear side of an upper portion of the cyclone separating device; a transverse connection assembly between the upper portion of the cyclonic separating apparatus and the suction motor apparatus; a battery pack; and the handle comprises an upper end part, a lower end part and a handle main body between the upper end part and the lower end part, the handle main body is provided with a handle central line, the lower end part of the handle is adjacent to the battery pack, the upper end part of the handle is connected with the transverse connecting assembly, and the handle central line simultaneously penetrates through the transverse connecting assembly and the battery pack. The upper end setting of handle is passed through on the transverse connection subassembly between suction motor device and cyclone for the gravity that is located the cyclone of front side and the suction motor device that is located the rear side can be as far as possible the distribution of "symmetry" both sides around the handle, thereby when making this dust catcher of user operation, the hand is not hard and the hand rotates more in a flexible way.

Description

Hand-held vacuum cleaner

Technical Field

The invention relates to the field of vacuum cleaning equipment, in particular to a handheld dust collector.

Background

The handheld dust collector has small volume, does not need to be dragged or moved on the ground when in use, is convenient to use and is popular with users. US8302250B2 discloses a hand-held cleaning device comprising: a suction duct having a longitudinal axis; an airflow generator; separating apparatus to separate dirt and dust from an airflow; a power supply for supplying power to the airflow generator; and an elongate handle disposed between the airflow generator and the power source.

According to the handheld cleaning equipment, the power supply and the airflow generator are only arranged close to the handle, namely the power supply and the airflow generator are arranged at the upper end and the lower end of the slender handle, namely the gravity center of the slender handle and the gravity center of the slender handle are close to the handle; however, since the separating apparatus on the front side of the elongate handle is also heavy, but since it is remote from the handle, the front end of the cleaner is heavy, and because of the moment, it is laborious to use and uncomfortable for the person.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a handheld dust collector with reasonable layout.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme: a hand-held cleaner comprising:

the air suction short pipe is used for sucking dusty airflow;

cyclonic separating apparatus arranged in communication with said suction nozzle stub to separate dust from said dusty gas stream;

a suction motor means for generating a vacuum suction force at the suction stub, the suction motor means being located at a rear side of an upper portion of the cyclone separating means;

a transverse connection assembly interposed between an upper portion of the cyclonic separating apparatus and the suction motor apparatus;

a battery pack for powering the suction motor means; and

the handle, the handle include upper end, lower tip and between the handle main part of upper and lower tip, the handle main part have a handle central line, the lower tip of handle with the battery package adjacent, the upper end of handle with horizontal coupling assembling meet, the handle central line pass horizontal coupling assembling with the battery package simultaneously.

In the above technical solution, preferably, the air suction short pipe has an air suction opening and a pipe body center line passing through the air suction opening, and an included angle of 60 ° to 90 ° is formed between the handle center line and the pipe body center line.

In the above technical solution, preferably, the cyclone separation device includes a detachable dust cup, the dust cup has a rotation axis, and the rotation axis and the center line of the pipe body form an included angle of 75 ° to 90 °.

In the above technical solution, preferably, a mesh filter hood is disposed inside the dust cup, an upstream cyclone separation chamber is formed between an inner wall surface of the dust cup and the mesh filter hood, a plurality of downstream cyclone separation chambers connected in parallel are disposed inside the mesh filter hood, and the downstream cyclone separation chambers are all communicated with the upstream cyclone separation chamber.

In the above technical solution, preferably, the suction motor device includes a motor housing and a suction motor disposed in the motor housing, and a motor axis of the suction motor is parallel to the tube center line.

Among the above-mentioned technical scheme, preferred, transverse connection subassembly include a transverse support frame and an air connecting pipe, the air connecting pipe be used for the gas intercommunication whirlwind separator with suction motor device, the air connecting pipe can dismantle the setting and be in transverse support frame on.

In the above technical solution, preferably, a detachable top cover is disposed at the top of the cyclone separation device, and the airflow connection pipe and the top cover are integrally formed as a single component.

In the above technical solution, preferably, a motor upstream filter which can be taken out from the inside of the cyclone separation device when the top cover is opened is arranged on the inner side of the top cover.

In the above technical solution, preferably, the cyclone separation device is provided with an exhaust hole and a containing cavity located above the exhaust hole, the filter on the upstream side of the motor is contained in the containing cavity, and the top cover covers the containing cavity.

In the above technical solution, preferably, the transverse support frame is integrally provided with at least a part of the handle.

Compared with the prior art, the invention has the following beneficial effects: through setting up the upper end of handle on the transverse connection subassembly between suction motor device and the whirlwind separator for the gravity that is located the whirlwind separator of front side and is located the suction motor device of rear side can be as far as possible "symmetrical" the distribution in the front and back both sides of handle, thereby make the user hold the hand when handle operation this dust catcher, and easy and hand rotates more nimble.

Drawings

Fig. 1 is a schematic perspective view of a hand-held cleaner according to an embodiment of the present invention;

FIG. 2 is an exploded view of a hand-held cleaner according to an embodiment of the present invention;

fig. 3 is a schematic front view of a main frame according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a main frame according to an embodiment of the present invention;

fig. 5 is a first exploded schematic view of a main frame according to an embodiment of the present invention;

fig. 6 is a second exploded schematic view of a main frame according to an embodiment of the present invention;

FIG. 7 is a partially exploded view of a hand-held cleaner in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of a hand-held cleaner with only the downstream filter of the motor removed in accordance with an embodiment of the present invention;

FIG. 9 is a schematic front cross-sectional view of a hand-held cleaner in accordance with an embodiment of the present invention;

wherein: 1000. a hand-held vacuum cleaner; 1. a main frame; 10. a transverse support frame; 11. a connecting seat; 12. a first middle frame; 121. a handle portion; 122. a first upper connecting portion; 123. a first transverse connecting portion; 1231. a slot; 124. a longitudinal side wall portion; 125. a lower connecting portion; 13. a second middle frame; 131. a handle middle frame portion; 132. a second upper connecting portion; 1321. locking; 1322. a receiving cavity; 133. a second transverse connecting portion; 14. a sidewall front cover; 15. a handle rear cover; 151. a limiting bulge; 16. a transverse connection assembly; 17. a short gas suction pipe; 171. a suction opening; 172. a tube body centerline; 100. a handle; 101. an upper end portion; 102. a lower end portion; 103. a handle body; 104. a handle centerline; 111. locking; 2. a cyclonic separating apparatus; 21. a dust cup; 201. a lock hole; 211. rotating the shaft axis; 22. a mesh filter housing; 23. a motor upstream filter; 24. a top cover; 241. a lock hole; 26. an airflow connecting pipe; 27. an upstream cyclonic separating chamber; 28. a downstream cyclone subchamber; 29. an exhaust hole; 3. a suction motor arrangement; 31. a motor housing; 32. a suction motor; 321. a shaft axis; 33. an impeller; 311. a front end portion; 312. a rear end portion; 313. a side wall; 314. an air inlet; 315. an air outlet; 316. mounting a bracket; 30. a threaded fastener; 4. a battery pack; 5. a filter downstream of the motor; 51. an exhaust port; 52. a filter housing; 53. filtering the sponge; 521. inserting a block; 6. a gap.

Detailed Description

For the purpose of illustrating the technical content, the constructional features, the achieved objects and the effects of the invention in detail, reference will be made to the following detailed description of the embodiments in conjunction with the accompanying drawings.

As shown in fig. 1 and 2, the hand-held cleaner 1000 is mainly composed of a main frame 1, a cyclone separator 2, a suction motor 3, a battery pack 4 and a downstream motor filter 5. The cyclonic separating apparatus 2 is used to separate dirt and dust from a dusty airflow and comprises, inter alia, a dirt cup 21, a mesh filter housing 22, a motor upstream filter 23 and a top cover 24. The suction motor device 3 comprises a suction motor and the like, the suction motor device 3 is used for introducing a dust-containing airflow which enters the cyclone separation device 2 for gas-solid separation, the cyclone separation device 2 is positioned at the front side of the suction motor device 3, and a transverse connecting component 16 is arranged between the cyclone separation device and the suction motor device. The suction motor device 3, the battery pack 4 and the cyclone separation device 2 are all detachably arranged on the main frame 1, wherein the dust cup 21, the mesh filter cover 22, the motor upstream filter 23, the top cover 24 and the battery pack 4 in the cyclone separation device 2 are conveniently and quickly detached; the suction device 3 needs to be detached with a tool, and is not easily detached from the dust cup 21 and the like.

As shown in fig. 3 and 4, the main frame 1 is used for assembling the cyclone separation device 2, the suction motor device 3, the battery pack 4 and the like of the dust collector 1000, and the main frame 1 is provided with a handle 100.

As shown in fig. 5 and 6, the main frame 1 mainly includes a connecting seat 11, a first middle frame 12, a second middle frame 13, a side wall front cover 14 and a handle rear cover 15, and the connecting seat 11, the first middle frame 12, the second middle frame 13, the side wall front cover 14 and the handle rear cover 15 are respectively a component formed by injection molding. The connecting base 11 is substantially annular, the first middle frame 12 includes a handle portion 121 located at the rear portion, a first upper connecting portion 122 located at the upper portion of the front side of the handle portion 121, a first horizontal connecting portion 123 located between the upper end of the handle portion 121 and the first upper connecting portion 122, a longitudinal side wall portion 124 extending downward from the joint of the first upper connecting portion 122 and the first horizontal connecting portion 123, and a lower connecting portion 125 located below the handle portion 121 and connected to the longitudinal side wall portion 124, the lower connecting portion 125 is substantially perpendicular to the longitudinal side wall portion 124, and the upper end of the handle portion 121 is inclined toward the front upper side. The second middle frame 13 includes a handle middle frame portion 131 located at the rear, a second upper connecting portion 132 located at an upper front side of the handle middle frame portion 131, and a second transverse connecting portion 133 located between an upper end portion of the handle middle frame portion 131 and the second upper connecting portion 132. In this example, a short intake pipe 17 is integrally provided on the front side of the first upper connecting portion 122. The first upper connecting portion 122 is fixedly installed on the connecting base 11 and forms an air duct (not shown in the figure) therebetween for guiding the dust-containing air flow entering from the air suction short pipe 17 to the inside of the dust cup 21 and performing spiral rotation. The first upper connecting portion 122 and the second upper connecting portion 132 are both annular, and the second upper connecting portion 132 is sleeved on the first upper connecting portion 122. The second transverse connecting portion 133 of the second middle frame 13 is fixed above the first transverse connecting portion 123 of the first middle frame 12 and forms a transverse supporting frame 10, the side wall front cover 14 covers the front side of the longitudinal side wall portion 124 of the first middle frame 12, and the handle portion 121, the handle middle frame portion 131 and the handle rear cover 15 are assembled to form a handle 100 (shown in fig. 3 and 4) for an operator to hold, wherein the handle 100 allows the user to operate the handheld vacuum cleaner 1000. The upper rear portion of the handle rear cover 15 is provided with a stopper projection 151 for limiting the position of the tiger's mouth of the hand of the user holding the handle 10.

As shown in fig. 4, the handle 100 has an upper end portion 101, a lower end portion 102, and a handle main body 103 interposed between the upper and lower end portions, the lower end portion 102 of the handle 100 is adjacent to the battery pack 4 (the battery pack 4 is fitted below the lower connecting portion 125, as shown in fig. 1), and the upper end portion 101 of the handle 100 is connected to the lateral support frame 10.

With continued reference to fig. 1, 2 and 5, the battery pack 4 is detachably mounted on the lower side of the lower connecting portion 125, the dust cup 21 of the cyclone separation device 2 is detachably fixed on the lower side of the connecting base 11, a locking hole 201 is formed in the top of the dust cup 21, and a lock catch 111 (see fig. 5) capable of being matched with the locking hole 201 is arranged on the connecting base 11 to lock the dust cup 1 on the connecting base 11. The mesh filter cover 22 is also detachably mounted on the lower side of the connecting seat 11 and located inside the dust cup 21, a locking mechanism (not shown in the figure) is also arranged between the upper end of the mesh filter cover 22 and the connecting seat 11, and a plurality of downstream cyclone sub-chambers 28 connected in parallel are arranged inside the mesh filter cover 22. The top cover 24 is disposed on the upper side of the second upper connecting portion 132, the top cover 24 is provided with a locking hole 241, and the second upper connecting portion 132 is provided with a latch 1321 matched with the locking hole 241 to fix the top cover 24 on the second upper connecting portion 132. The second upper connecting portion 132 is further provided at an inner side thereof with a receiving chamber 1322, and the motor upstream filter 23 is installed in the receiving chamber 1322 and covered by the top cover 24. When the top cover 24 is opened, the electric motor upstream filter 23 can be removed from the receiving chamber 1322 in the second upper connecting portion 132 for cleaning or ash removal.

As shown in fig. 2 and 7, an airflow connecting pipe 26 for connecting the cyclone separation device 2 and the suction motor device 3 is further disposed on the upper side of the transverse support frame 10, the airflow connecting pipe 26 is detachably disposed above the transverse support frame 10, and the transverse support frame 10 and the airflow connecting pipe 26 form a transverse connecting assembly 16 between the cyclone separation device 2 and the suction motor device 3. In this example, the airflow connection pipe 26 is located at the rear side of the top cover 24 and is integrally formed as one piece with the top cover 24.

As shown in fig. 2 and 7, the suction motor device 3 is located at the rear side of the upper portion of the cyclone separation device 2, the suction motor device 3 includes a motor housing 31, a suction motor 32 (see fig. 9) disposed in the motor housing 31, the motor housing 31 has a front end 311, a rear end 312, and a sidewall 313 between the front end 311 and the rear end 312, the front end 311 of the motor housing 31 is provided with an air inlet 314, the rear end of the airflow connecting pipe 26 is connected to the air inlet 314, and the lower end of the sidewall 313 is provided with an air outlet 315. The front end of the motor housing 31 is provided with a mounting bracket 316 protruding to the front side, and the mounting bracket 316 is fixedly connected with the transverse support frame 10 through a plurality of threaded fasteners 30. In this example, the mounting bracket 316 is hidden inside the lateral connection assembly 16; when the airflow connection pipe 26 is detached from the transverse support frame 10, the mounting bracket 316 and the plurality of threaded connectors 30 are exposed, which is not only simple in assembly, but also convenient for the maintenance personnel to remove the suction motor device 3 from the main frame 1 for replacement or maintenance.

As shown in fig. 7 and 8, the remaining portion of the motor housing 31 except the front end 311 is suspended behind the transverse support frame 10 and above the handle body 103, and a gap 6 is formed between the lower portion of the motor housing 31 and the handle body 103. The downstream-motor filter 5 is provided on the rear lower side of the suction motor unit 3, and is detachably provided on the suction motor unit 3. The downstream motor filter 5 is located downstream of the air outlet 315 of the suction motor arrangement 3 in terms of the airflow flow path. In this example, the majority of the filter 5 downstream of the motor is located at the gap 6. The downstream filter 5 includes a filter housing 52 provided with an air outlet 51, and a filter sponge 53 (see fig. 7) disposed inside the filter housing 52, and the air discharged from the air outlet 315 of the motor housing 31 passes through the filter sponge 53 and is discharged from the air outlet 51 to the outside. The filter housing 52 is L-shaped, the front end of the filter housing 52 is provided with an insertion block 521, the rear end of the first transverse connecting portion 123 is provided with an insertion groove 1231 opposite to the insertion block 521, when the downstream filter 5 is mounted on the suction motor device 3, the insertion block 521 is inserted into the insertion groove 1231, part of the filter housing 52 covers the outer side of the rear end 312 of the motor housing 31, the other part of the filter housing covers the lower side of the side wall 313 of the motor housing 31, and the filter sponge 53 is sandwiched between the side wall 313 and the filter housing 52.

As shown in FIG. 9, an upstream cyclone separation chamber 27 is formed between the dirt cup 21 and the mesh filter housing 22, a plurality of downstream cyclone sub-chambers 28 arranged in parallel inside the mesh filter housing 22 are positioned downstream of the upstream cyclone separation chamber 27, the motor upstream filter 23 is positioned downstream of the downstream cyclone separation chamber 28, and a vent hole 29 is provided between the downstream cyclone separation device 28 and the motor upstream filter 23. The air suction short pipe 17 is provided with a suction opening 171 and a pipe body center line 172 passing through the suction opening 171, the handle main body 103 is provided with a handle center line 104 passing through the upper end part and the lower end part, and the handle center line 104 passes through the transverse support frame 10 and the airflow connecting pipe 26 on the transverse connecting component 16 and forms an included angle of 60-90 degrees with the pipe body center line 172; the dust cup 21 is provided with a rotating axis 211, and the rotating axis 211 forms an included angle of 75-90 degrees with the central line 172 of the pipe body; the motor shaft centerline 321 of the suction motor 32 is disposed parallel to the tube centerline 172. The dusty airflow enters the air suction short pipe 17 from the suction opening 171 under the action of the suction motor 32, then enters the upstream cyclone separation chamber 27 in the dust cup 21 for gas-solid separation, large-particle dust remains in the dust cup 21, fine dust is communicated with the air and enters the downstream cyclone separation chambers 28 for gas-solid separation again after passing through the mesh filter cover 22, then cleaner air is discharged to the outside of the dust cup 21 through the exhaust hole 29 and then passes through the motor upstream filter 23, then enters the suction motor 32 from the airflow connecting pipe 26, and the airflow in the suction motor 32 is filtered by the motor downstream filter 5 to become clean air and then is discharged to the outside through the exhaust hole 51.

In order to smoothly introduce the dusty airflow into the short air suction pipe, the short air suction pipe is also provided with various dust suction tool accessories, such as a floor brush, a common suction nozzle, a flat suction nozzle and the like.

In other embodiments, the filter downstream of the motor in the above embodiments may also be a motor sound insulation device, for example, a motor sound insulation device is adopted, the filter housing is replaced by a sound insulation housing, the position of the filter sponge is replaced by sound insulation material such as sound insulation foam which can be installed inside the sound insulation housing, and the noise of the suction motor can be effectively reduced by adopting the motor sound insulation device. In addition, if a motor sound insulation device is adopted, the position of an air outlet on the motor shell needs to be adaptively changed. In other embodiment variants, not shown, the cyclone device can also have only one primary cyclone chamber. In addition, the first and second substrates are,

the above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A hand-held cleaner, comprising:

the air suction short pipe (17) is used for sucking the dusty airflow;

-cyclonic separating apparatus (2) arranged in communication with said suction nozzle stub (17) to separate dust from said dusty gas stream;

-suction motor means (3) for generating a vacuum suction at said suction stub (17), said suction motor means (3) being located at the rear side of the upper portion of said cyclonic separating apparatus (2);

a lateral connection assembly (16) interposed between the upper portion of the cyclonic separating apparatus (2) and the suction motor assembly (3), the lateral connection assembly (16) including a lateral support frame (10) and an airflow connection tube (26), the airflow connection tube (26) being adapted to communicate the cyclonic separating apparatus (2) with the suction motor assembly (3), the airflow connection tube (26) being removably mounted to the lateral support frame (10);

a battery pack (4) for powering the suction motor means (3); and

a handle (100), said handle (100) comprising an upper end (101), a lower end (102) and a handle body (103) between said upper and lower ends, said handle body (103) having a handle centerline (104), said handle lower end (102) being adjacent to said battery pack (4), said handle upper end (101) being attached to said transverse connecting member (16), said handle centerline (104) passing through both said transverse connecting member (16) and said battery pack (4).

2. The hand-held cleaner of claim 1, wherein: the air suction short pipe (17) is provided with an air suction opening (172) and a pipe body center line (172) penetrating through the air suction opening (171), and an included angle of 60-90 degrees is formed between the handle center line (104) and the pipe body center line (172).

3. The hand-held cleaner according to claim 2, wherein the cyclonic separating apparatus (2) comprises a detachable dirt cup (21), the dirt cup (21) having an axis of rotation (211), the axis of rotation (211) being at an angle of 75 ° to 90 ° to the tube centre line (172).

4. The hand-held cleaner of claim 3, wherein: the dust cup is characterized in that a mesh filter cover (22) is arranged on the inner side of the dust cup (21), an upstream cyclone separation chamber (27) is formed between the inner wall surface of the dust cup (21) and the mesh filter cover (22), a plurality of downstream cyclone separation chambers (28) which are connected in parallel are arranged on the inner side of the mesh filter cover (22), and the downstream cyclone separation chambers (28) are communicated with the upstream cyclone separation chamber (27).

5. The hand-held cleaner of claim 3, wherein: the suction motor device (3) comprises a motor shell (31) and a suction motor (32) arranged in the motor shell (31), a motor shaft center line (321) of the suction motor (32) is arranged in parallel with the pipe body center line (172), the front end part of the motor shell (31) is provided with a mounting bracket (316) extending towards the front side, and the mounting bracket (316) is fixedly connected with the transverse support frame (10) through a plurality of threaded fasteners (30).

6. The hand-held cleaner of claim 1, wherein: the top of the cyclone separation device (2) is provided with a detachable top cover (24), and the airflow connecting pipe (26) and the top cover (26) are integrally formed into a component.

7. The hand-held cleaner of claim 6, wherein: the inner side of the top cover (26) is provided with a motor upstream filter (23) which can be taken out from the inside of the cyclone separation device (2) when the top cover (26) is opened.

8. The hand-held cleaner of claim 7, wherein: an exhaust hole (29) and a containing cavity (1322) positioned at the upper part of the exhaust hole (29) are arranged in the cyclone separation device (2), the motor upstream filter (23) is contained in the containing cavity (1322), and the top cover (24) covers the containing cavity (1322).

9. The hand-held cleaner of claim 1, wherein: the transverse support frame (10) is integrated with at least part of the handle (100).