Vacuum cleaner main unit and vacuum cleaner

Abstract

The present invention provides a dust collection main body and a vacuum cleaner. The dust collection main body includes a main body housing. The front end of the main body housing has a dust cup mounting port and an air inlet portion that extends outward on one side of the dust cup mounting port. An air inlet duct is provided inside the air inlet portion. The air inlet duct includes a first air inlet section that extends inward along the air inlet portion and a second air inlet section connected to the end of the first air inlet section. The second air inlet section is bent toward the side where the dust cup mounting port is located relative to the first air inlet section, and the second air inlet section extends along the tangent direction of the dust cup mounted on the dust cup mounting port to communicate with the dust cup. Based on the technical solution of the present invention, the air inlet duct provided in the air inlet portion is divided into two sections, and the second air inlet section extends along the tangent direction of the dust cup to communicate with the dust cup, greatly reducing the wind resistance and thus improving the suction performance.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaning devices, and particularly to a vacuum cleaning main body and a vacuum cleaner. Background Art

[0002] Vacuum cleaners are household appliances widely used at present. They mainly use the continuous operation of a fan to generate instantaneous vacuum inside the vacuum cleaner, thereby forming a negative pressure difference with the external atmospheric pressure. Under the action of this pressure difference, air containing dust is inhaled. After the air carrying dust enters the vacuum cleaner, the dust is filtered and collected, and the air is purified by a filter element and then discharged from the tail of the machine body.

[0003] Nowadays, the functions of vacuum cleaners are basically perfect. At present, the improvement requirements for vacuum cleaners are more about miniaturization, light weight, and durability. Although existing vacuum cleaners have various designs, basically due to imperfect structural design, there are problems such as large volume, low modularity, complex assembly structure, air resistance problems caused by imperfect air duct structure, and heat dissipation problems caused by unreasonable structural design to varying degrees, resulting in poor product reliability and user experience.

[0004] Therefore, the present invention aims to provide a vacuum cleaning main body and a vacuum cleaner with advantages such as highly integrated parts, small size, and convenient disassembly and assembly. Summary of the Invention

[0005] In order to solve the problems of poor product reliability and bad user experience of existing vacuum cleaners caused by unreasonable structural design, the present invention provides a vacuum cleaning main body and a vacuum cleaner.

[0006] In a first aspect, a vacuum cleaning main body provided by the present invention includes a main body housing. The front end of the main body housing has a dust cup mounting port and an air inlet portion extending outward on one side of the dust cup mounting port. An air inlet duct is provided inside the air inlet portion. The air inlet duct includes a first air inlet section extending inward along the air inlet portion and a second air inlet section connected to the end of the first air inlet section.

[0007] The second air inlet section is bent toward the side where the dust cup mounting port is located relative to the first air inlet section, and the second air inlet section extends along the tangent direction of a dust cup mounted on the dust cup mounting port to communicate with the dust cup.

[0008] In an embodiment, the air inlet duct is formed inside a duct housing installed in the air inlet portion. The front end of the duct housing has duct fixing posts that can be fixedly connected to the front end of the air inlet portion through fasteners, and the rear end has a duct fixing ring that can cooperate with duct fixing posts inside the main body housing.

[0009] In one embodiment, the air inlet duct is formed inside a duct housing installed in the air inlet portion. On one side of the outer wall of the duct housing corresponding to the dust cup mounting opening, a dust cup hanging groove is formed, and the dust cup hanging groove can cooperate with a dust cup sliding buckle on the outer wall of the dust cup to detachably install the dust cup.

[0010] In one embodiment, the air inlet duct is formed inside a duct housing installed in the air inlet portion. One side of the air inlet portion close to the dust cup mounting opening is an opening extending along the extending direction of the air inlet portion, and mounting rails are formed at the edges of both sides of the opening. Both sides of the portion of the duct housing corresponding to the opening are respectively lapped on the mounting rails on both sides.

[0011] In one embodiment, the mounting rails extend from the air inlet portion into the interior of the main housing and cooperate with a battery assembly installed in the main housing. Both opposite sides of the battery assembly respectively have mounting chutes that cooperate with the mounting rails.

[0012] In one embodiment, a fan installation cylinder corresponding to the dust cup mounting opening is provided inside the main housing. An air outlet duct is formed between the fan installation cylinder and the inner wall of the main housing, and an air outlet grille communicating with the air outlet duct is provided on the main housing.

[0013] In one embodiment, wind shielding rib strips extending from the side walls on both sides of the fan installation cylinder are connected to the inner wall of the main housing and jointly enclose the air outlet duct. The wind shielding rib strips and the fan installation cylinder divide a battery installation area corresponding to the air inlet portion inside the main housing, and the coverage range of the air outlet grille on the main housing spans the area corresponding to the air outlet duct and the battery installation area.

[0014] In one embodiment, a lighting lamp fixed relative to the inner wall of the air inlet portion is provided at the front end of the air inlet portion. The power supply cable of the lighting lamp is routed along the inner wall of the air inlet portion to a key board fixed on the inner wall of the main housing, and a key hole for cooperating with a key is provided on the main housing at the position of the key board.

[0015] In one embodiment, the front end of the air inlet portion is a mounting opening, and a dust suction port member corresponding to the inlet of the first air inlet section is provided inside the mounting opening. A card slot is provided on the outer wall of the dust suction port member, and the lighting lamp is limited in the card slot and is fixed relative to the inner wall of the air inlet portion.

[0016] In one embodiment, the rear end of the main housing is an open end, and the open end can allow the disassembly and assembly of the functional components inside the main housing to enter and exit. A handle is detachably connected to the open end and the handle closes the open end.

[0017] In a second aspect, a vacuum cleaner proposed by the present invention includes the above-mentioned dust collection main body, and thus has all the technical effects thereof.

[0018] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the object of the present invention can be achieved.

[0019] Compared with the prior art, a dust collection main body and a vacuum cleaner provided by the present invention have at least the following beneficial effects:

[0020] In the dust collection main body and the vacuum cleaner of the present invention, the air inlet duct provided in the air inlet part is divided into two sections, and the second air inlet section extends in the tangential direction of the dust cup to communicate with the dust cup, greatly reducing the air resistance and improving the suction performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Hereinafter, the present invention will be described in more detail based on embodiments with reference to the drawings. Among them:

[0022] Figure 1 shows an exploded view of the dust collection main body of the present invention;

[0023] Figure 2 shows a front view of the dust collection main body of the present invention;

[0024] Figure 3 shows Figure 2 a cross-sectional view of the structure shown;

[0025] Figure 4 shows a side view of the dust collection main body of the present invention;

[0026] Figure 5 shows Figure 4 a schematic diagram of the cross-section E-E in;

[0027] Figure 6 shows Figure 2 a schematic diagram of the cross-section D-D in;

[0028] Figure 7 shows Figure 2 a schematic diagram of the cross-section F-F in;

[0029] Figure 8 shows Figure 2 a schematic diagram of the cross-section C-C in.

[0030] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0031] Reference Numerals:

[0032] 10 - Main housing, 1001 - Button hole, 1002 - Air duct guiding column, 1003 - Wire groove, 1004 - Windshield rib, 1005 - First air outlet section, 1006 - Second air outlet section, 1007 - Installation guide rail, 1008 - Air outlet grille, 1009 - Battery fixing column, 1010 - Button board fixing column, 1011 - Battery hanging column, 1012 - Fan fixing cylinder, 1013 - Battery installation area, 20 - Lighting lamp, 30 - Air inlet section, 40 - Battery assembly, 401 - Installation sliding groove, 50 - Button board, 501 - Button board light guide column, 60 - Dust suction port component, 601 - Dust suction port gasket, 70 - Dust cup installation opening, 701 - Filter, 80 - Dust cup, 801 - Dust cup cover, 802 - Dust cup sliding buckle, 803 - Separation cone, 804 - Separation cone sealing ring, 805 - Torsion spring, 806 - Separation cone handle, 90 - Fan assembly, 901 - Fan sealing ring, 902 - Fan gasket, 903 - Charging base, 100 - Handle, 130 - Air duct housing, 1301 - First air inlet section, 1302 - Second air inlet section, 1303 - Guiding part, 1304 - Air duct fixing column, 1305 - Dust cup hanging groove, 1306 - Air inlet duct sealing ring, 1307 - Air duct fixing ring. Detailed implementation manner

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] An embodiment of the present invention provides a dust suction main unit, including a main housing 10. The front end of the main housing 10 has a dust cup installation opening 70 and an air inlet section 30 that extends outward on one side of the dust cup installation opening 70. An air inlet duct is provided inside the air inlet section 30. The air inlet duct includes a first air inlet section 1301 that extends inward along the air inlet section 30 and a second air inlet section 1302 connected to the end of the first air inlet section 1301; a filter 701 is provided at the dust cup installation opening 70.

[0035] The second air inlet section 1302 is bent toward the side where the dust cup installation opening 70 is located relative to the first air inlet section 1301, and the second air inlet section 1302 extends along the tangent direction of the dust cup 80 installed at the dust cup installation opening 70 to communicate with the dust cup 80.

[0036] Specifically, as shown in the accompanying drawings Figure 1 、 Figure 3 and Figure 6As shown in the figure, the dust suction main body of the present invention adopts a parallel arrangement of the air inlet part 30 and the dust cup 80, and the length of the air inlet part 30 matches the length of the dust cup 80, and the end faces of the two are flush. Inside the main body shell 10, a fan assembly 90 and a battery assembly 40 are arranged in parallel. The fan assembly 90 corresponds to the dust cup mounting port 70, and the battery assembly 40 corresponds to the air inlet part 30. The entire dust suction main body is divided into four modules arranged in an array, namely the air inlet part 30 (air inlet duct), the dust cup 80, the fan assembly 90, and the battery assembly 40, with a compact structure, high space utilization rate, and high miniaturization degree.

[0037] At the same time, the air inlet duct arranged inside the air inlet part 30 is divided into two sections, and the second air inlet section 1302 extends in the tangential direction of the dust cup 80 to communicate with the dust cup 80, greatly reducing the air resistance; and the air inlet duct adopts an integrated structure, and both ends are respectively matched with the dust suction port gasket 601 and the air inlet duct sealing ring 1306, without other sealing components, with a high degree of part integration, improving the sealing performance of the whole machine; thus, based on the reduction of air resistance and the improvement of sealing performance, the suction performance is improved.

[0038] In one embodiment, the air inlet duct is formed inside the duct shell 130 installed in the air inlet part 30. The front end of the duct shell 130 has a duct fixing column 1304 that can be fixedly connected to the front end of the air inlet part 30 through fasteners, and the rear end has a duct fixing ring 1307 that can cooperate with the duct fixing column 1304 inside the main body shell 10.

[0039] Specifically, as shown in the attached drawings Figure 4 shown, the duct fixing column 1304 at the front end of the duct shell 130 has a mounting hole that can cooperate with fasteners, and the duct fixing ring 1307 at the rear end of the duct shell 130 can be directly sleeved on the duct guiding column 1002 shown in the attached drawings Figure 7 shown, which is convenient for installation.

[0040] In one embodiment, the air inlet duct is formed inside the duct shell 130 installed in the air inlet part 30, and is formed by the integrated structure of the duct shell 130, without other sealing components, with a high degree of part integration, improving the sealing performance of the whole machine. On one side of the outer wall of the duct shell 130 corresponding to the dust cup mounting port 70, a dust cup hanging groove 1305 is constructed, and the dust cup hanging groove 1305 can cooperate with the dust cup sliding buckle 802 on the outer wall of the dust cup 80 to detachably install the dust cup 80.

[0041] Specifically, as shown in the attached drawings Figure 4As shown, after the air duct housing 130 is installed in the air inlet part 30, the side with the dust cup 80 hanging groove faces the side where the dust cup mounting port 70 is located. At this time, the dust cup 80 can be inserted in the direction close to the dust cup mounting port 70, so that the dust cup sliding buckle 802 on the outer wall slides obliquely into the dust cup 80 hanging groove from the notch of the dust cup 80 hanging groove. Then, the dust cup sliding buckle 802 is hooked at the edge of the dust cup 80 hanging groove and part of it is in interference fit with the groove wall of the dust cup 80 hanging groove, realizing the installation of the dust cup 80. The whole installation structure is simple and convenient.

[0042] In addition, a dust cup cover 801 is provided at the opening of the dust cup 80. The upper part of the dust cup cover 801 is hinged to the body of the dust cup 80, and a torsion spring 805 is provided at the hinge. A separation cone 803 is provided inside the dust cup 80, and a separation cone sealing ring 804 that can be in sealing contact with the inner wall of the dust cup cover 801 is provided at the end of the separation cone 803. As shown in the attached drawing Figure 3 As shown, a separation cone handle 806 is also rotatably provided at the bottom of the separation cone 803. The separation cone handle 806 can be rotated and unfolded, so that the separation cone 803 can be pulled out of the dust cup 80 to realize operations such as disassembly and cleaning.

[0043] In one embodiment, the air inlet duct is formed inside the air duct housing 130 installed in the air inlet part 30. The side of the air inlet part 30 close to the dust cup mounting port 70 is an opening extending along the extending direction of the air inlet part 30. Mounting guide rails 1007 are formed at the edges of both sides of the opening. The two sides of the part of the air duct housing 130 corresponding to the opening are respectively lapped on the mounting guide rails 1007 on both sides. Specifically, as shown in the attached drawing Figure 6 As shown, the mounting guide rail 1007 is used to limit the position of the air duct housing 130 in the radial direction of the main housing 10. When the air duct housing 130 is installed, it can slide into the installation part along the mounting guide rail 1007 to realize the installation.

[0044] In one embodiment, the mounting guide rail 1007 extends from the air inlet part 30 to the inside of the main housing 10 and cooperates with the battery assembly 40 installed in the main housing 10. The opposite sides of the battery assembly 40 respectively have mounting chutes 401 for cooperating with the mounting guide rail 1007.

[0045] Specifically, as shown in the attached drawing Figure 8 As shown, the mounting guide rail 1007 is used to limit the position of the battery assembly 40 in the radial direction of the main housing 10. Combining with the open design at the rear end of the main housing 10, the battery assembly 40 can be slid into the inside of the main housing 10 along the mounting guide rail 1007 from the open end after the handle 100 is removed for installation. Its installation is independent of the air duct housing 130 front and back and does not affect each other.

[0046] Referring to the attached drawing Figure 3, the front end of the battery assembly 40 also has an assembly groove, which cooperates with the battery fixing post 1009 extending inwards from the edge of the dust cup mounting port 70 to achieve the positioning of the battery assembly 40 in the axial direction of the main housing 10. Refer to the attached drawings Figure 1 , the rear end of the battery assembly 40 also has a battery hanging loop, as shown in the attached drawings Figure 3 , the battery hanging loop can cooperate with the battery hanging post 1011 on the inner wall of the main housing 10.

[0047] In one embodiment, a fan installation cylinder corresponding to the dust cup mounting port 70 is provided inside the main housing 10. An air outlet duct is formed between the fan installation cylinder and the inner wall of the main housing 10, and an air outlet grille 1008 communicating with the air outlet duct is provided on the main housing 10.

[0048] Specifically, as shown in the attached drawings Figure 1 , Figure 3 , Figure 7 , Figure 8 , the fan installation cylinder is integrated inside the main housing 10. Combining with the open design at the rear end of the main housing 10, the fan assembly 90 can be installed into the fan installation cylinder from the open end after the handle 100 is removed. The fan assembly 90 and the dust cup 80 are installed independently front and back without affecting each other. The air outlet duct includes two parts, a first air outlet section 1005 near the tail end of the fan installation cylinder and a second air outlet section 1006 near the front end of the fan installation cylinder. The air output radially from the tail end of the fan assembly 90 enters the outer first air outlet section 1005 and then flows reversely by 180°, and is discharged from the air outlet grille 1008 after entering the second air outlet, making full use of the radial space and effectively controlling the length of the entire main body.

[0049] The fan assembly 90 includes a fan sealing ring 901 provided at the air inlet end, a fan gasket 902 provided at the air outlet end, and a charging base 903. A charging port for installing the charging base 903 is provided on the main housing 10.

[0050] In one embodiment, wind blocking rib strips 1004 extending from the side walls on both sides of the fan installation cylinder are connected to the inner wall of the main housing 10 and jointly enclose an air outlet duct. The wind blocking rib strips 1004 and the fan installation cylinder divide a battery installation area 1013 corresponding to the air inlet part 30 inside the main housing 10. The coverage range of the air outlet grille 1008 on the main housing 10 spans the area corresponding to the air outlet duct and the battery installation area 1013.

[0051] Specifically, as shown in the attached drawings Figure 2 , Figure 7 and Figure 8As shown, the air outlet grille 1008 spans across the area corresponding to the air outlet duct and the battery installation area 1013, so that the air flow discharged from the air outlet duct through the air outlet grille 1008 can drive the air in the battery installation area 1013 to be discharged, realizing the heat dissipation of the battery assembly 40 in the battery installation area 1013.

[0052] In one embodiment, the front end of the air inlet part 30 has a lighting lamp 20 fixedly relative to the inner wall of the air inlet part 30. The power supply cable of the lighting lamp 20 is routed along the inner wall of the air inlet part 30 to the key board 50 fixed on the inner wall of the main housing 10. The main housing 10 is provided with a key hole 1001 for cooperating with the keys at the position of the key board 50.

[0053] Specifically, as shown in the attached drawings Figure 1 and Figure 3 As shown, the lighting lamp 20 (including the lamp body and the light guide column) and the key board 50 are both arranged at the top of the main body. The two are electrically connected through a cable. A wire groove 1003 for fixing the cable is arranged on the inner wall of the air inlet part 30. The key board 50 is provided with a plurality of keys and a light emitting part for indicating the operation signal. A key board light guide column 501 is arranged at the light emitting part. The key board 50 is positioned by a key board fixing column 1010 on the inner wall of the main housing 10. The key board 50 is provided with a positioning hole for cooperating with the key board fixing column 1010.

[0054] In one embodiment, the front end of the air inlet part 30 is an installation opening. A dust suction port part 60 corresponding to the inlet of the first air inlet section 1301 is arranged inside the installation opening. A clamping groove is arranged on the outer wall of the dust suction port part 60. The lighting lamp 20 is limited in the clamping groove and is fixedly relative to the inner wall of the air inlet part 30.

[0055] Specifically, as shown in the attached drawings Figure 1 and Figure 3 As shown, the dust suction port part 60 can be connected to an external dust suction pipe. It also serves as a fixing structure for the lighting lamp 20 at the same time. An installation area for the lighting lamp 20 is defined between the dust suction port part 60 and the inner wall of the installation opening, and the lighting lamp 20 is fixed through the clamping groove of the dust suction port part 60. The dust suction port part 60 also cooperates with the front end of the air duct housing 130. A dust suction port gasket 601 is arranged between the two, and the front end of the air duct housing 130 also has a guiding part 1303 abutting against the dust suction port part 60.

[0056] In one embodiment, the rear end of the main housing 10 is an open end, and the open end can allow the disassembly and assembly of the functional components inside the main housing 10 to enter and exit. A handle 100 is detachably connected to the open end, and the handle 100 closes the open end.

[0057] Specifically, as shown in the attached drawings Figure 1 and Figure 5After the handle 100 at the rear end of the shown main housing 10 is disassembled, it has an open mouth, through which the battery assembly 40 and the fan assembly 90 can be disassembled and assembled into the main housing 10.

[0058] An embodiment of the present invention further provides a vacuum cleaner, including the above-mentioned vacuuming main machine, and thus having all the technical effects thereof.

[0059] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0060] Although the present invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present invention defined by the appended claims. It should be understood that the different dependent claims and the features described herein can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other described embodiments.

Claims

1. A dust suction main unit, characterized in that, It includes a main housing. The front end of the main housing has a dust cup mounting opening and an air inlet portion extending outwardly on one side of the dust cup mounting opening. An air inlet duct is provided inside the air inlet portion. The air inlet duct includes a first air inlet section extending inwardly along the air inlet portion and a second air inlet section connected to the end of the first air inlet section. The second air inlet section is bent toward the side where the dust cup mounting opening is located with respect to the first air inlet section, and the second air inlet section extends along the tangent direction of the dust cup mounted on the dust cup mounting opening to communicate with the dust cup. The air inlet duct is formed inside a duct housing installed in the air inlet portion. The side of the air inlet portion close to the dust cup mounting opening is an opening extending along the extending direction of the air inlet portion. Mounting rails are formed at the two side edges of the opening. Two sides of the portion of the duct housing corresponding to the opening are respectively lapped on the two side mounting rails. The mounting rails extend from the air inlet portion into the interior of the main housing and cooperate with a battery assembly installed inside the main housing. Two opposite sides of the battery assembly respectively have mounting chutes for cooperating with the mounting rails.

2. The dust suction main machine according to claim 1, wherein The air inlet duct is formed inside a duct housing installed in the air inlet portion. The front end of the duct housing has duct fixing posts that can be fixedly connected to the front end of the air inlet portion through fasteners, and the rear end has a duct fixing ring that can cooperate with the duct fixing posts inside the main housing.

3. The dust suction main body according to claim 1, characterized in that, The air inlet duct is formed inside a duct housing installed in the air inlet portion. A dust cup hanging groove is constructed on the outer wall of the duct housing corresponding to the side of the dust cup mounting opening. The dust cup hanging groove can cooperate with a dust cup sliding buckle on the outer wall of the dust cup to detachably install the dust cup.

4. The dust suction main machine according to any one of claims 1 to 3, characterized in that, A fan installation cylinder corresponding to the dust cup mounting opening is provided inside the main housing. An air outlet duct is formed between the fan installation cylinder and the inner wall of the main housing. An air outlet grille is provided on the main housing and communicates with the air outlet duct.

5. The dust collection main machine according to claim 4, characterized in that Wind shielding rib strips extending from the side walls on both sides of the fan installation cylinder are connected to the inner wall of the main housing and jointly enclose the air outlet duct. The wind shielding rib strips and the fan installation cylinder divide a battery installation area corresponding to the air inlet portion inside the main housing. The coverage range of the air outlet grille on the main housing spans the area corresponding to the air outlet duct and the battery installation area.

6. The vacuum cleaner main body according to any one of claims 1 to 3, characterized in that, The front end of the air inlet portion has a lighting lamp relatively fixed to the inner wall of the air inlet portion. The power supply cable of the lighting lamp is routed along the inner wall of the air inlet portion to a key board fixed on the inner wall of the main housing. The main housing is provided with key holes for cooperating with keys at the position of the key board.

7. The dust collection main machine according to claim 6, characterized in that The front end of the air inlet portion is an installation opening. A dust suction port member corresponding to the inlet of the first air inlet section is provided inside the installation opening. A card slot is provided on the outer wall of the dust suction port member. The lighting lamp is limited in the card slot and is relatively fixed to the inner wall of the air inlet portion.

8. The dust suction main machine according to any one of claims 1 to 3, characterized in that, The rear end of the main housing is an open end through which the functional components inside the main housing can be disassembled and assembled. A handle is detachably connected to the open end and the handle closes the open end.

9. A vacuum cleaner, characterized in that, It includes a vacuum cleaner main body as described in any one of claims 1 to 8.

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