A vacuum cleaner core component

Abstract

The present invention discloses a vacuum cleaner core assembly. It includes a dust cup assembly, a motor assembly and a main body assembly. The dust cup assembly includes a dust suction port, a dust cup main body, a filtering assembly and an air inlet assembly. The dust suction port is disposed on the dust cup main body. The filtering assembly is installed inside the dust cup main body. The filtering assembly includes a primary filter element and a secondary filter element. The secondary filter element is disposed inside the primary filter element. The air inlet assembly is installed at the upper end of the dust cup main body. The motor assembly is connected to the air inlet assembly. The motor assembly is installed inside the main body assembly. The beneficial effects of the present invention are as follows: The design of multiple filtration greatly improves the filtration effect, thereby improving the dust suction efficiency, facilitating disassembly and installation, having high safety and reliability, and high positioning stability and reliability.

Description

Technical Field

[0001] The present invention relates to the technical field related to vacuum cleaners, and in particular to a vacuum cleaner core assembly. Background Art

[0002] Vacuum cleaners can be classified into upright, horizontal, and portable types according to their structures. The working principle of a vacuum cleaner is that an electric motor drives the blades to rotate at high speed, creating a negative air pressure inside a sealed housing to suck up dust debris. A vacuum cleaner mainly consists of three parts: dust generation, dust suction, and dust filtration, and generally includes a series-wound commutator motor, a centrifugal fan, a filter (bag), and dust suction accessories. The power of a general vacuum cleaner is 400 - 1000 W or higher, and the power of a portable vacuum cleaner is generally 250 W or less. A vacuum cleaner can remove dust mainly because an electric suction fan is installed at its "head". There is an air impeller on the rotating shaft of the suction fan. After being powered on, the suction fan rotates at a speed of 500 revolutions per second to generate a relatively high suction force and pressure. Under the action of the suction force and pressure, air is discharged at high speed, and the air at the dust suction part in front of the fan continuously replenishes the air in the fan, causing an instantaneous vacuum inside the vacuum cleaner and forming a negative pressure difference with the external atmospheric pressure. Under the action of this pressure difference, air containing dust is inhaled.

[0003] Dust cup filtration separates garbage and gas through the vacuum airflow generated by the high-speed rotation of the motor, and then purifies the air through filter materials such as HEPA to avoid secondary pollution. Dust cup filtration is the main filtration method of vacuum cleaners. Most vacuum cleaners use dust cup filtration, which is also an upgrade of dust bag filtration. It also has the advantage of no consumables, avoiding secondary investment of funds. When the existing dust cup is not in use, the dust in the dust cup often flows back due to the user's handling and moving of the vacuum cleaner, resulting in secondary pollution; in addition, general household vacuum cleaners often simply perform dust suction and filtration and cannot perform cleaner dust filtration. Because the finer the filter material, the cleaner the air can be filtered by the vacuum cleaner, but the air permeability is worse, which affects the air volume inhaled by the motor and reduces the efficiency of the vacuum cleaner. Summary of the Invention

[0004] The present invention is to overcome the above-mentioned deficiencies in the prior art and provides a vacuum cleaner core assembly with good filtration effect and high dust suction efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A vacuum cleaner core assembly includes a dust cup assembly, a motor assembly, and a main body assembly. The dust cup assembly includes a suction port, a dust cup main body, a filter assembly, and an air inlet assembly. The suction port is disposed on the dust cup main body. The filter assembly is installed inside the dust cup main body. The filter assembly includes a primary filter element and a secondary filter element. The secondary filter element is disposed inside the primary filter element. The air inlet assembly is installed at the upper end of the dust cup main body. The motor assembly is connected to the air inlet assembly, and the motor assembly is installed inside the main body assembly.

[0007] Through the design of the primary filter element, the dust entering from the suction port is subjected to the first filtration treatment. Then, through the design of the secondary filter element, the air after the first filtration treatment is subjected to secondary filtration. After two filtrations, the air enters the motor assembly through the air inlet assembly. This design realizes the secondary filtration of dust, thus greatly improving the filtration effect of the vacuum cleaner and further enhancing the suction efficiency.

[0008] Preferably, the main body assembly includes a left main body housing, a right main body housing, and a rear cover plate. The motor assembly is installed between the left main body housing and the right main body housing. Both the left main body housing and the right main body housing are provided with housing flanges. The housing flanges are provided with a number of evenly distributed housing buckles. The rear cover plate is provided with a cover plate flange. The housing flange is disposed inside the cover plate flange. The rear cover plate is provided with housing blocks that match the housing buckles. The inner side of the rear cover plate is provided with a number of reinforcing blocks, and the reinforcing blocks are in contact with the motor assembly. Through the design of the housing buckles on the housing flanges and the cover plate flange on the rear cover plate, the disassembly and installation between the rear cover plate and the left main body housing and the right main body housing are facilitated. At the same time, the purpose of the design of the reinforcing blocks is to further fix the motor assembly to prevent relative displacement of the motor assembly and there is a certain potential safety hazard, and the safety and reliability are high.

[0009] Preferably, the motor assembly includes a button board, a switch button, a motor housing, and a dust suction motor. The dust suction motor is installed inside the motor housing. One end of the motor housing is installed on the air inlet assembly, and the other end of the motor housing contacts the strengthening block on the rear cover plate. In the middle of the inner part of the end of the motor housing close to the rear cover plate, there is a buffer block. The dust suction motor contacts the motor housing through the buffer block. There is a wire hole at the upper end of the motor housing, and a rubber wire buckle is arranged in the wire hole. There is an annular groove on the rubber wire buckle, and the rubber wire buckle is clamped on the wire hole through the annular groove. There are several evenly distributed elastic strips on the side of the switch button, and button holes are arranged on the button board. The switch button is clamped in the button holes through the elastic strips. The switch button is electrically connected to the dust suction motor through the rubber wire buckle. The button board is installed on the air inlet assembly, the left main housing, and the right main housing. Through the design of the buffer block, it is prevented that the dust suction motor has relative displacement inside the motor housing, which affects the safety of the whole device. Through the design of the rubber wire buckle, the electric wire can be effectively protected from damage. Through the design of the elastic strips, the disassembly and installation of the switch button can be facilitated.

[0010] Preferably, the air inlet assembly includes an air inlet bottom cover, an air inlet end cover, and an air inlet pipe. The air inlet bottom cover is installed at the upper end of the dust cup body. The air inlet end cover is installed on the air inlet bottom cover. There is a notch on the side of the air inlet bottom cover. There is an air inlet hole in the middle of the bottom of the air inlet bottom cover. There is a positioning ring groove at the edge of the air inlet hole. One end of the air inlet pipe is provided with a positioning flange matching the positioning ring groove. The air inlet pipe is positioned on the air inlet bottom cover and fixedly connected to the air inlet bottom cover through the cooperation of the positioning flange and the positioning ring groove. The other end of the air inlet pipe is provided with a fixed flap after passing through the notch of the air inlet bottom cover. There is a limiting head at the outer edge of the fixed flap. There is a limiting buckle on the motor housing matching the limiting head. The motor housing is limited on the fixed flap through the limiting buckle and the limiting head and fixedly connected to the fixed flap. An air inlet net plate is arranged in the air inlet pipe. There are plate grooves on the air inlet end cover, the left main housing, and the right main housing. There are several evenly distributed plate card holes in the plate grooves. There are plate buckles matching the plate card holes at the edge of the button board. Through the design of the positioning ring groove and the positioning flange, the positioning of the air inlet pipe is convenient and the disassembly and installation are facilitated. Through the design of the limiting head and the limiting buckle, the installation positioning and disassembly of the motor housing can be facilitated. Through the design of the air inlet net plate, on the one hand, three - stage filtering operation can be realized to further improve the filtering effect, and the air flow in the air inlet pipe can also be changed to reduce its direct impact on the dust suction motor, thereby protecting the dust suction motor. Through the design of the plate grooves and the plate buckles, the disassembly and installation of the button board are convenient.

[0011] Preferably, the air inlet assembly further includes a motor cover plate. A limiting groove is provided on the outer side of the air inlet pipe where the fixed flap is located. The motor cover plate is provided with a limiting convex ring matching the limiting groove. The motor cover plate is installed on the fixed flap through the cooperation of the limiting convex ring and the limiting groove. An air suction hole is provided in the middle of the motor cover plate, and a motor flange is provided on the side of the motor cover plate. The dust suction motor is limited within the motor flange of the motor cover plate, and the air suction hole communicates with the air inlet pipe. Through the design of the limiting groove and the limiting convex ring, the installation and positioning of the motor cover plate are facilitated; and through the design of the motor flange, the dust suction motor can be effectively positioned.

[0012] Preferably, a dust suction hole is provided at the upper end of the side of the dust cup body. The dust suction port is installed on the dust suction hole. A rotating flap is provided on the dust suction port. A rotating shaft is provided on one side of the rotating flap. The rotating flap is installed in the dust suction port through the rotating shaft. The rotating flap matches the dust suction hole on the dust cup body. An arc-shaped groove is provided at the upper end of the dust cup body. The air inlet bottom cover is provided with an arc-shaped flange matching the arc-shaped groove. The air inlet bottom cover is limited on the dust cup body and fixedly connected to the dust cup body through the matching of the arc-shaped flange and the arc-shaped groove. Through the design of the rotating flap and the rotating shaft, the rotating flap rotates in the dust suction port. When the vacuum cleaner works, affected by the dust suction force, the rotating flap is opened, allowing dust to enter the dust cup body; when the vacuum cleaner stops working, if the dust suction port faces downward, due to the self-weight of the rotating flap, the dust suction port will be closed, preventing the dust in the dust cup body from flowing back; and through the design of the arc-shaped groove and the arc-shaped flange, the positioning and installation of the air inlet bottom cover are facilitated.

[0013] Preferably, a dust cup bottom cover is provided at the lower end of the dust cup body. A bottom cover rotating shaft is provided at the edge of the dust cup bottom cover. A rotating shaft seat matching the bottom cover rotating shaft is provided on the side of the dust cup body. The dust cup bottom cover is installed on the dust cup body through the cooperation of the bottom cover rotating shaft and the rotating shaft seat. A bottom cover buckle is provided at the edge of the dust cup bottom cover. A bottom cover catch matching the bottom cover buckle is provided on the side of the dust cup body. The dust cup bottom cover is snap-connected to the dust cup body through the bottom cover buckle and the bottom cover catch. Through the design of the bottom cover rotating shaft and the bottom cover buckle on the dust cup bottom cover, the opening and closing between the dust cup bottom cover and the dust cup body are facilitated.

[0014] Preferably, a switch slide rail is provided on the side of the dust cup main body and above the bottom cover chuck. A switch slider is provided on the switch slide rail. The switch slider is installed on the switch slide rail and is slidably connected to the switch slide rail. A first section surface is provided at the lower end of the switch slider, and the orientation of the first section surface is away from the dust cup main body. A second section surface matching the first section surface is provided on the bottom cover buckle. The bottom cover buckle is attached to the switch slider through the cooperation of the first section surface and the second section surface. Through the cooperation of the first section surface on the switch slide rail and the second section surface on the bottom cover buckle, when the switch slide rail moves downward, the bottom cover buckle is pushed open, thereby opening the dust cup bottom cover; when closing the dust cup bottom cover, the bottom cover buckle contacts the switch slide rail through the second section surface fitting with the first section surface, thus facilitating the operation of the bottom cover buckle through the switch slide rail.

[0015] Preferably, the primary filter element includes a filter baffle, a filter drum, and a filter cross plate. The filter baffle is placed inside the dust cup main body. The filter drum and the filter cross plate are placed inside the filter baffle. A number of evenly distributed drum clamping blocks are provided on the outer side of the filter drum. Drum buckles matching the drum clamping blocks are provided on the filter cross plate. The filter cross plate is installed on the outer side surface of the filter drum through the cooperation of the drum clamping blocks and the drum buckles. The distance from the filter cross plate to the lower end of the filter drum gradually decreases from the side close to the filter drum to the side far from the filter drum. A number of evenly distributed filter clamping blocks are provided at the outer edge of the upper end of the filter drum. Filter buckles matching the filter clamping blocks are provided at the upper end of the dust cup main body. The filter drum is installed on the dust cup main body through the cooperation of the filter clamping blocks and the filter buckles. A number of evenly distributed filter mesh holes are provided on the side of the filter drum and above the filter cross plate. The diameter of the filter drum gradually decreases from the position where the filter cross plate is located to the bottom end of the filter drum. Through the design of the filter baffle, the contact between dust and the inside of the dust cup main body can be separated, thereby improving the cleanliness inside the dust cup main body; through the operation of the filter cross plate, the filter drum is divided into upper and lower parts. The upper part filters the dust once and then enters the secondary filter element, while the lower part can limit the dust after the primary filtration outside the lower part and inside the filter drum, facilitating the cleaning of the dust; through the design of the filter clamping blocks and the filter buckles, the disassembly and installation of the filter drum can be facilitated.

[0016] Preferably, the secondary filter element includes a filter frame and a filter bottom plate. An installation ring frame is provided at the upper end of the filter frame. An installation ring groove is provided on the installation ring frame. A number of uniformly distributed frame clamping blocks are provided at the outer edge of the installation ring frame. An installation groove matching the installation ring frame is provided on the bottom surface of the air inlet bottom cover at the position where the air inlet hole is located. An installation flange matching the installation ring groove is provided in the installation groove. A frame buckle matching the frame clamping block is provided on the installation flange. The filter frame is installed on the air inlet bottom cover through the cooperation of the frame clamping block and the frame buckle. A number of uniformly distributed bottom plate buckles are provided at the lower end of the filter frame. A bottom plate clamping head matching the bottom plate buckle is provided on the filter bottom plate. The filter bottom plate is installed on the filter frame through the cooperation of the bottom plate buckle and the bottom plate clamping head. The diameter of the filter frame gradually decreases from one end of the installation ring frame to one end of the filter bottom plate. A filter Hepa is provided outside the filter frame. The filter Hepa is arranged between the installation ring frame and the filter bottom plate. Through the design of the installation ring frame and the installation groove, the disassembly and installation positioning of the filter frame can be facilitated; through the disassembly and installation of the filter frame and the filter bottom plate, the disassembly and installation of the filter Hepa can be facilitated.

[0017] The beneficial effects of the present invention are as follows: The design of multiple filters greatly improves the filtering effect, thereby improving the dust suction efficiency, facilitating disassembly and installation, having high safety and reliability, and high positioning stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the exploded structural schematic diagram of the present invention;

[0019] Figure 2 is the structural schematic diagram of the air inlet bottom cover;

[0020] Figure 3 is the structural schematic diagram of the air inlet pipe;

[0021] Figure 4 is the structural schematic diagram of the secondary filter element;

[0022] Figure 5 is the structural schematic diagram of the rubber wire buckle;

[0023] Figure 6 is the structural schematic diagram of the dust cup body;

[0024] Figure 7 is the structural schematic diagram of the motor housing.

[0025] In the figure: 1. Dust suction port, 2. Rotating shaft, 3. Rotating flap, 4. Limiting head, 5. Positioning flange, 6. Air inlet pipe, 7. Limiting groove, 8. Fixed flap, 9. Motor cover plate, 10. Air inlet end cover, 11. Plate groove, 12. Plate card hole, 13. Buffer block, 14. Plate buckle, 15. Rubber wire buckle, 16. Button board, 17. Button hole, 18. Elastic strip, 19. Switch button, 20. Housing flange, 21. Left main housing, 22. Rear cover plate, 23. Housing card block, 24. Reinforcing block, 25. Cover plate flange, 26. Housing buckle, 27. Right main housing, 28. Secondary filter element, 29. Filter card block, 30. Filter drum, 31. Filter mesh hole, 32. Filter cross plate, 33. Filter baffle, 34. Dust cup body, 35. Air inlet hole, 36. Positioning ring groove, 37. Air inlet bottom cover, 38. Notch, 39. Motor housing, 40. Arc-shaped flange, 41. Installation flange, 42. Frame buckle, 43. Air inlet mesh plate, 44. Installation ring groove, 45. Installation ring frame, 46. Frame card block, 47. Filter frame, 48. Filter bottom plate, 49. Annular groove, 50. Filter buckle, 51. Arc-shaped groove, 52. Rotating shaft seat, 53. Bottom cover rotating shaft, 54. Dust cup bottom cover, 55. Bottom cover chuck, 56. Bottom cover buckle, 57. Section two, 58. Section one, 59. Switch slider, 60. Dust suction hole, 61. Buffer groove, 62. Limiting buckle, 63. Limiting convex ring, 64. Air suction hole, 65. Motor flange, 66. Installation groove. Detailed implementation manners

[0026] The following further describes the present invention in conjunction with the accompanying drawings and specific implementation manners.

[0027] As Figure 1 In the described embodiment, a vacuum cleaner core assembly includes a dust cup assembly, a motor assembly, and a main body assembly. The dust cup assembly includes a dust suction port 1, a dust cup body 34, a filter assembly, and an air inlet assembly. The dust suction port 1 is disposed on the dust cup body 34. The filter assembly is installed inside the dust cup body 34. The filter assembly includes a primary filter element and a secondary filter element 28. The secondary filter element 28 is disposed inside the primary filter element. The air inlet assembly is installed at the upper end of the dust cup body 34. The motor assembly is connected to the air inlet assembly, and the motor assembly is installed inside the main body assembly.

[0028] As Figure 1As shown, the main machine component includes a left main machine housing 21, a right main machine housing 27 and a rear cover plate 22. The motor component is installed between the left main machine housing 21 and the right main machine housing 27. There are housing flanges 20 on both the left main machine housing 21 and the right main machine housing 27. There are several evenly distributed housing buckles 26 on the housing flanges 20. There is a cover plate flange 25 on the rear cover plate 22. The housing flanges 20 are placed inside the cover plate flange 25. There are housing blocks 23 on the rear cover plate 22 that match the housing buckles 26. There are several reinforcing blocks 24 on the inner side of the rear cover plate 22. The reinforcing blocks 24 are in contact with the motor component.

[0029] As Figure 5 , Figure 7 shown, the motor component includes a button board 16, a switch button 19, a motor housing 39 and a dust suction motor. The dust suction motor is installed inside the motor housing 39. One end of the motor housing 39 is installed on the air inlet component. The other end of the motor housing 39 is in contact with the reinforcing block 24 on the rear cover plate 22. There is a buffer groove 61 in the middle of the inner part of the end of the motor housing 39 close to the rear cover plate 22. There is a buffer block 13 in the buffer groove 61. The dust suction motor is in contact with the motor housing 39 through the buffer block 13. There is a wire hole at the upper end of the motor housing 39. There is a rubber wire buckle 15 in the wire hole. There is an annular groove 49 on the rubber wire buckle 15. The rubber wire buckle 15 is clamped on the wire hole through the annular groove 49. There are several evenly distributed elastic strips 18 on the side of the switch button 19. There is a button hole 17 on the button board 16. The switch button 19 is clamped in the button hole 17 through the elastic strips 18. The switch button 19 is electrically connected to the dust suction motor through the rubber wire buckle 15. The button board 16 is installed on the air inlet component, the left main machine housing 21 and the right main machine housing 27.

[0030] As Figure 2 , Figure 3As shown in the figure, the air inlet assembly includes an air inlet bottom cover 37, an air inlet end cover 10, and an air inlet pipe 6. The air inlet bottom cover 37 is installed at the upper end of the dust cup body 34. The air inlet end cover 10 is installed on the air inlet bottom cover 37. A notch 38 is provided on the side of the air inlet bottom cover 37. An air inlet hole 35 is provided in the middle of the bottom of the air inlet bottom cover 37. A positioning ring groove 36 is provided at the edge of the air inlet hole 35. One end of the air inlet pipe 6 is provided with a positioning flange 5 that matches the positioning ring groove 36. The air inlet pipe 6 is positioned on the air inlet bottom cover 37 through the cooperation of the positioning flange 5 and the positioning ring groove 36 and is fixedly connected to the air inlet bottom cover 37. The other end of the air inlet pipe 6 is provided with a fixed flap 8 after passing through the notch 38 of the air inlet bottom cover 37. A limit head 4 is provided at the outer edge of the fixed flap 8. A limit buckle 62 that matches the limit head 4 is provided on the motor housing 39. The motor housing 39 is limited on the fixed flap 8 through the limit buckle 62 and the limit head 4 and is fixedly connected to the fixed flap 8. An air inlet net plate 43 is provided in the air inlet pipe 6. Plate grooves 11 are provided on the air inlet end cover 10, the left main housing 21, and the right main housing 27. A number of evenly distributed plate card holes 12 are provided in the plate grooves 11. Plate buckles 14 that match the plate card holes 12 are provided at the edge of the button plate 16. The air inlet assembly further includes a motor cover plate 9. A limit groove 7 is provided on the fixed flap 8 outside the air inlet pipe 6. A limit convex ring 63 that matches the limit groove 7 is provided on the motor cover plate 9. The motor cover plate 9 is installed on the fixed flap 8 through the cooperation of the limit convex ring 63 and the limit groove 7. An air suction hole 64 is provided in the middle of the motor cover plate 9. A motor flange 65 is provided on the side of the motor cover plate 9. The dust suction motor is limited within the motor flange 65 of the motor cover plate 9. The air suction hole 64 is communicated with the air inlet pipe 6.

[0031] As Figure 6As shown in the figure, a dust suction hole 60 is provided at the upper end of the side surface of the dust cup main body 34. The dust suction port 1 is installed on the dust suction hole 60. A rotating flap 3 is provided on the dust suction port 1. A rotating shaft 2 is provided on one side of the rotating flap 3. The rotating flap 3 is installed in the dust suction port 1 through the rotating shaft 2. The rotating flap 3 matches the dust suction hole 60 on the dust cup main body 34. An arc-shaped groove 51 is provided at the upper end of the dust cup main body 34. An arc-shaped flange 40 matching the arc-shaped groove 51 is provided on the air inlet bottom cover 37. The air inlet bottom cover 37 is limited on the dust cup main body 34 and fixedly connected to the dust cup main body 34 through the matching of the arc-shaped flange 40 and the arc-shaped groove 51. A dust cup bottom cover 54 is provided at the lower end of the dust cup main body 34. A bottom cover rotating shaft 53 is provided at the edge of the dust cup bottom cover 54. A rotating shaft seat 52 matching the bottom cover rotating shaft 53 is provided on the side surface of the dust cup main body 34. The dust cup bottom cover 54 is installed on the dust cup main body 34 through the cooperation of the bottom cover rotating shaft 53 and the rotating shaft seat 52. A bottom cover buckle 56 is provided at the edge of the dust cup bottom cover 54. A bottom cover clamping head 55 matching the bottom cover buckle 56 is provided on the side surface of the dust cup main body 34. The dust cup bottom cover 54 is clamped on the dust cup main body 34 through the bottom cover buckle 56 and the bottom cover clamping head 55. A switch slide rail is provided on the side surface of the dust cup main body 34 and above the bottom cover clamping head 55. A switch slider 59 is provided on the switch slide rail. The switch slider 59 is installed on the switch slide rail and is slidably connected to the switch slide rail. A first section surface 58 is provided at the lower end of the switch slider 59. The orientation of the first section surface 58 is in the direction away from the dust cup main body 34. A second section surface 57 matching the first section surface 58 is provided on the bottom cover buckle 56. The bottom cover buckle 56 is attached to the switch slider 59 through the cooperation of the first section surface 58 and the second section surface 57.

[0032] As Figure 1 shown, the primary filter element includes a filter baffle 33, a filter drum 30 and a filter cross plate 32. The filter baffle 33 is placed inside the dust cup main body 34. The filter drum 30 and the filter cross plate 32 are placed inside the filter baffle 33. A number of evenly distributed drum clamping blocks are provided on the outer side of the filter drum 30. Drum buckles matching the drum clamping blocks are provided on the filter cross plate 32. The filter cross plate 32 is installed on the outer side surface of the filter drum 30 through the cooperation of the drum clamping blocks and the drum buckles. The distance from the filter cross plate 32 to the lower end of the filter drum 30 gradually decreases from the side close to the filter drum 30 to the side far from the filter drum 30. A number of evenly distributed filter clamping blocks 29 are provided at the outer edge of the upper end of the filter drum 30. A filter buckle 50 matching the filter clamping blocks 29 is provided at the upper end of the dust cup main body 34. The filter drum 30 is installed on the dust cup main body 34 through the cooperation of the filter clamping blocks 29 and the filter buckle 50. A number of evenly distributed filter mesh holes 31 are provided on the side surface of the filter drum 30 and above the filter cross plate 32. The diameter of the filter drum 30 gradually decreases from the position where the filter cross plate 32 is located to the bottom end of the filter drum 30.

[0033] As Figure 4As shown, the secondary filter element 28 includes a filter frame 47 and a filter bottom plate 48. An installation ring frame 45 is provided at the upper end of the filter frame 47. An installation ring groove 44 is provided on the installation ring frame 45. A number of evenly distributed frame clamping blocks 46 are provided at the outer edge of the installation ring frame 45. An installation groove 66 that cooperates with the installation ring frame 45 is provided on the bottom surface of the air inlet bottom cover 37 at the position where the air inlet hole 35 is located. An installation flange 41 that matches the installation ring groove 44 is provided in the installation groove 66. A frame buckle 42 that matches the frame clamping block 46 is provided on the installation flange 41. The filter frame 47 is installed on the air inlet bottom cover 37 through the cooperation of the frame clamping block 46 and the frame buckle 42. A number of evenly distributed bottom plate buckles are provided at the lower end of the filter frame 47. A bottom plate clamping head that cooperates with the bottom plate buckle is provided on the filter bottom plate 48. The filter bottom plate 48 is installed on the filter frame 47 through the cooperation of the bottom plate buckle and the bottom plate clamping head. The diameter of the filter frame 47 gradually decreases from one end of the installation ring frame 45 to one end of the filter bottom plate 48. A filter HEPA is provided on the outer side of the filter frame 47. The filter HEPA is disposed between the installation ring frame 45 and the filter bottom plate 48.

[0034] During use, the dusty air enters the dust cup body 34 through the dust suction port 1. First, under the suction force of the dust suction motor, the rotating flap 3 rotates around the rotating shaft 2, thus opening the dust suction holes 60 to allow the dusty air to enter the dust cup body 34. The air is first filtered for the first time by the filter mesh holes 31 on the primary filter drum 30. The dust filtered out for the first time is first placed on the filter cross plate 32. Since the distance from the filter cross plate 32 to the lower end of the filter drum 30 gradually decreases from the side close to the filter drum 30 to the side far from the filter drum 30, the dust slides along the filter cross plate 32 to the bottom of the dust cup body 34, reducing the impact on the dust cup bottom cover 54. The air after the first filtration enters the interior of the filter drum 30 and is then filtered by the filter HEPA for the second time. The dust filtered out for the second time slides along the structural design at the lower end of the filter drum 30 to the bottom of the dust cup body 34. The air after the second filtration enters the air inlet pipe 6 through the design of the mounting ring frame 45. Under the action of the air inlet mesh plate 43 in the air inlet pipe 6, on the one hand, it can further filter the dust in the air, but its main function is to disperse the air flow, making the impact force of the air passing through the air inlet pipe 6 on the dust suction motor smaller. Then, through the action of the dust suction motor, the air flows out of the motor housing 39 and is discharged through the air outlet mesh plates of the left main housing 21 and the right main housing 27. When the vacuum cleaner 2001 is not working, when the user lifts the vacuum cleaner core assembly, the rotating flap 3 is often closed by the gravity of the rotating flap 3 around the rotating shaft 2 to close the dust suction holes 60. Then, when dumping the dust, first, the bottom cover buckle 56 is pushed open by the switch slider 59 to open the dust cup bottom cover 54. Then, only by rotating the filter drum 30 can the filter drum 30 be detached from the dust cup body 34 for cleaning, and by rotating the filter rack 47, the filter rack 47 can be detached from the air inlet bottom cover 37 for cleaning.

Claims

1. A vacuum cleaner core assembly, characterized in that, it includes a dust cup assembly, a motor assembly and a main body assembly. The dust cup assembly includes a suction port (1), a dust cup main body (34), a filtering assembly and an air inlet assembly. The suction port (1) is disposed on the dust cup main body (34). The filtering assembly is installed inside the dust cup main body (34). The filtering assembly includes a primary filter element and a secondary filter element (28). The secondary filter element (28) is disposed inside the primary filter element. The air inlet assembly is installed at the upper end of the dust cup main body (34). The motor assembly is connected to the air inlet assembly. The motor assembly is installed inside the main body assembly. The main body assembly includes a left main body housing (21), a right main body housing (27) and a rear cover plate (22). The motor assembly is installed between the left main body housing (21) and the right main body housing (27). Both the left main body housing (21) and the right main body housing (27) are provided with housing flanges (20). A plurality of evenly distributed housing buckles (26) are provided on the housing flanges (20). The rear cover plate (22) is provided with a cover plate flange (25). The housing flange (20) is disposed inside the cover plate flange (25). The rear cover plate (22) is provided with housing blocks (23) matching the housing buckles (26). A plurality of reinforcing blocks (24) are provided on the inner side of the rear cover plate (22). The reinforcing blocks (24) are in contact with the motor assembly. The motor assembly includes a button plate (16), a switch button (19), a motor housing (39) and a suction motor. The suction motor is installed inside the motor housing (39). One end of the motor housing (39) is installed on the air inlet assembly. The other end of the motor housing (39) is in contact with the reinforcing block (24) on the rear cover plate (22). A buffer groove (61) is provided in the middle of the inner part of the end of the motor housing (39) close to the rear cover plate (22). A buffer block (13) is provided in the buffer groove (61). The suction motor is in contact with the motor housing (39) through the buffer block (13). A wire hole is provided at the upper end of the motor housing (39). A rubber wire buckle (15) is provided in the wire hole. An annular groove (49) is provided on the rubber wire buckle (15). The rubber wire buckle (15) is clamped on the wire hole through the annular groove (49). A plurality of evenly distributed elastic strips (18) are provided on the side surface of the switch button (19). Button holes (17) are provided on the button plate (16). The switch button (19) is clamped in the button holes (17) through the elastic strips (18). The switch button (19) is electrically connected to the suction motor through the rubber wire buckle (15). The button plate (16) is installed on the air inlet assembly, the left main body housing (21) and the right main body housing (27).

2. A vacuum cleaner core assembly according to claim 1, characterized in that, The air inlet assembly described above includes an air inlet bottom cover (37), an air inlet end cover (10), and an air inlet pipe (6). The air inlet bottom cover (37) is installed at the upper end of the dust cup body (34). The air inlet end cover (10) is installed on the air inlet bottom cover (37). A notch (38) is provided on the side of the air inlet bottom cover (37). An air inlet hole (35) is provided in the middle of the bottom of the air inlet bottom cover (37). A positioning ring groove (36) is provided at the edge of the air inlet hole (35). One end of the air inlet pipe (6) is provided with a positioning flange (5) that matches the positioning ring groove (36). The air inlet pipe (6) is positioned on the air inlet bottom cover (37) through the cooperation of the positioning flange (5) and the positioning ring groove (36) and is fixedly connected to the air inlet bottom cover (37). The other end of the air inlet pipe (6) is provided with a fixed flap (8) after passing through the notch (38) of the air inlet bottom cover (37). A limiting head (4) is provided at the outer edge of the fixed flap (8). A limiting buckle (62) that matches the limiting head (4) is provided on the motor housing (39). The motor housing (39) is limited on the fixed flap (8) through the limiting buckle (62) and the limiting head (4) and is fixedly connected to the fixed flap (8). An air inlet screen plate (43) is provided in the air inlet pipe (6). Plate grooves (11) are provided on the air inlet end cover (10), the left main housing (21), and the right main housing (27). A number of uniformly distributed plate card holes (12) are provided in the plate grooves (11). Plate buckles (14) that match the plate card holes (12) are provided at the edge of the button plate (16).

3. The vacuum cleaner core assembly according to claim 2, characterized in that, the air inlet assembly further includes a motor cover plate (9). A limiting groove (7) is provided on the fixed flap (8) outside the air inlet pipe (6). A limiting convex ring (63) that matches the limiting groove (7) is provided on the motor cover plate (9). The motor cover plate (9) is installed on the fixed flap (8) through the cooperation of the limiting convex ring (63) and the limiting groove (7). An air suction hole (64) is provided in the middle of the motor cover plate (9). A motor flange (65) is provided on the side of the motor cover plate (9). The suction motor is limited within the motor flange (65) of the motor cover plate (9). The air suction hole (64) is communicated with the air inlet pipe (6).

4. The vacuum cleaner core assembly according to claim 2 or 3, characterized in that, The upper end of the side surface of the dust cup main body (34) is provided with a dust suction hole (60), the dust suction port (1) is installed on the dust suction hole (60), a rotating flap (3) is arranged on the dust suction port (1), a rotating shaft (2) is arranged on one side of the rotating flap (3), the rotating flap (3) is installed in the dust suction port (1) through the rotating shaft (2), the rotating flap (3) is matched with the dust suction hole (60) on the dust cup main body (34), an arc-shaped groove (51) is arranged at the upper end of the dust cup main body (34), an arc-shaped flange (40) matched with the arc-shaped groove (51) is arranged on the air inlet bottom cover (37), and the air inlet bottom cover (37) is limited on the dust cup main body (34) and fixedly connected with the dust cup main body (34) through the matching of the arc-shaped flange (40) and the arc-shaped groove (51).

5. A vacuum cleaner core assembly according to claim 4, wherein, a dust cup bottom cover (54) is arranged at the lower end of the dust cup main body (34), a bottom cover rotating shaft (53) is arranged at the edge of the dust cup bottom cover (54), a rotating shaft seat (52) matched with the bottom cover rotating shaft (53) is arranged on the side surface of the dust cup main body (34), the dust cup bottom cover (54) is installed on the dust cup main body (34) through the cooperation of the bottom cover rotating shaft (53) and the rotating shaft seat (52), a bottom cover buckle (56) is arranged at the edge of the dust cup bottom cover (54), a bottom cover clamping head (55) matched with the bottom cover buckle (56) is arranged on the side surface of the dust cup main body (34), and the dust cup bottom cover (54) is clamped on the dust cup main body (34) through the cooperation of the bottom cover buckle (56) and the bottom cover clamping head (55).

6. A vacuum cleaner core assembly according to claim 5, wherein, a switch slide rail is arranged on the side surface of the dust cup main body (34) and above the bottom cover clamping head (55), a switch slider (59) is arranged on the switch slide rail, the switch slider (59) is installed on the switch slide rail and is slidably connected with the switch slide rail, a first section surface (58) is arranged at the lower end of the switch slider (59), the orientation of the first section surface (58) is in the direction away from the dust cup main body (34), a second section surface (57) matched with the first section surface (58) is arranged on the bottom cover buckle (56), and the bottom cover buckle (56) is attached to the switch slider (59) through the cooperation of the first section surface (58) and the second section surface (57).

7. A vacuum cleaner core assembly according to claim 5, wherein, The primary filter element includes a filter baffle (33), a filter drum (30) and a filter cross plate (32). The filter baffle (33) is placed inside the dust cup body (34). The filter drum (30) and the filter cross plate (32) are placed inside the filter baffle (33). A number of evenly distributed drum locking blocks are provided on the outer side of the filter drum (30). Drum buckles matching the drum locking blocks are provided on the filter cross plate (32). The filter cross plate (32) is installed on the outer side surface of the filter drum (30) through the cooperation of the drum locking blocks and the drum buckles. The distance from the filter cross plate (32) to the lower end of the filter drum (30) gradually decreases from the side close to the filter drum (30) to the side far from the filter drum (30). A number of evenly distributed filter locking blocks (29) are provided at the outer edge of the upper end of the filter drum (30). Filter buckles (50) matching the filter locking blocks (29) are provided at the upper end of the dust cup body (34). The filter drum (30) is installed on the dust cup body (34) through the cooperation of the filter locking blocks (29) and the filter buckles (50). A number of evenly distributed filter mesh holes (31) are provided on the side surface of the filter drum (30) and above the filter cross plate (32). The diameter of the filter drum (30) gradually decreases from the position where the filter cross plate (32) is located to the bottom end of the filter drum (30).

8. The vacuum cleaner core assembly according to claim 7, characterized in that the secondary filter element (28) includes a filter frame (47) and a filter bottom plate (48). An installation ring frame (45) is provided at the upper end of the filter frame (47). An installation ring groove (44) is provided on the installation ring frame (45). A number of evenly distributed frame locking blocks (46) are provided at the outer edge of the installation ring frame (45). An installation groove (66) matching the installation ring frame (45) is provided on the bottom surface of the air inlet bottom cover (37) and at the position where the air inlet hole (35) is located. An installation flange (41) matching the installation ring groove (44) is provided in the installation groove (66). Frame buckles (42) matching the frame locking blocks (46) are provided on the installation flange (41). The filter frame (47) is installed on the air inlet bottom cover (37) through the cooperation of the frame locking blocks (46) and the frame buckles (42). A number of evenly distributed bottom plate buckles are provided at the lower end of the filter frame (47). Bottom plate locking heads matching the bottom plate buckles are provided on the filter bottom plate (48). The filter bottom plate (48) is installed on the filter frame (47) through the cooperation of the bottom plate buckles and the bottom plate locking heads. The diameter of the filter frame (47) gradually decreases from one end of the installation ring frame (45) to one end of the filter bottom plate (48). A filter HEPA is provided on the outer side of the filter frame (47). The filter HEPA is placed between the installation ring frame (45) and the filter bottom plate (48).

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