Vacuum cleaner main unit and vacuum cleaner device

By designing a motor assembly that moves up and down and a locking structure, the problem of difficulty in switching between vacuum cleaner modes and self-cleaning modes has been solved, achieving rapid multi-mode switching and improved self-cleaning performance.

WO2026156726A1PCT designated stage Publication Date: 2026-07-30SUZHOU SONGMU TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SUZHOU SONGMU TECHNOLOGY CO LTD
Filing Date
2025-01-24
Publication Date
2026-07-30

AI Technical Summary

Technical Problem

Existing vacuum cleaners are difficult to switch between vacuuming mode and self-cleaning mode, and their structure is complex.

Method used

The design employs a motor assembly that moves up and down, combined with a locking structure and a flexible reset component. By switching between the air inlet and outlet of the motor assembly, the vacuuming mode and self-cleaning mode can be quickly switched, simplifying the structure.

Benefits of technology

It enables quick switching between multiple modes of the vacuum cleaner, simplifies the structure, improves the self-cleaning effect, and prevents dust leakage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2025074810_30072026_PF_FP_ABST
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Abstract

Disclosed in the present application are a vacuum cleaner main unit and a vacuum cleaner device. The vacuum cleaner main unit comprises a body, a motor assembly, a locking structure and a first elastic reset member; the motor assembly is arranged in the body and is movable in the vertical direction; the locking structure is arranged in the body and is movable in the transverse direction, so as to lock or unlock the motor assembly; one end of the first elastic reset member is connected to the body, and the other end thereof is connected to the motor assembly. When the motor assembly is pressed, the motor assembly moves downwards and is locked and fixed by the locking structure; and an air inlet of the motor assembly extends into a filter element in the body. Under the action of an external force, the locking structure moves in a direction away from the motor assembly, so as to unlock the motor assembly; the motor assembly moves upwards under the action of the first elastic reset member and an air outlet of the motor assembly is closed; and the air inlet of the motor assembly moves out of the filter element in the body. The present application enables switching between a dust suction mode and a self-cleaning mode simply by means of driving the motor assembly to move up and down, thus achieving a simple overall structure.
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Description

A vacuum cleaner main unit and vacuum cleaner device Technical Field

[0001] This application relates to the field of vacuum cleaner technology, and more particularly to a vacuum cleaner host and vacuum cleaner device. Background Technology

[0002] Handheld vacuum cleaners are increasingly popular in households due to their compact size, portability, and lack of power cord constraints. Handheld vacuum cleaners typically use a fan to create negative pressure, sucking up debris and other impurities into a dustbin. The dustbin has a small capacity, and the dustbin needs to be opened to empty it after use. However, this process often scatters dust, causing secondary pollution. To address these issues, base stations with dust collection functions have emerged on the market, collecting dust from the dustbin and preventing it from being scattered. For example, Chinese patent document CN218651617U discloses a dust collection system for a vacuum cleaner base station, including a base station and a vacuum cleaner. The base station includes a base, a support rod, and a support component. The support component has a dust collection chamber. The base has a dust collection bag and a negative pressure component. The vacuum cleaner includes a hand handle and a dust collection cup. The dust collection cup has a dust cup body and a dust cup bottom cover. The dust cup body has a release button to control the rotation of the dust cup bottom cover to open or close. When the vacuum cleaner is placed on the base station, the trigger part on the base station triggers the release button on the bottom cover, the dust cup bottom cover opens, and the negative pressure component draws in, creating a negative pressure inside the chamber. The dust inside the dust cup body automatically falls and is collected in the base station, achieving the purpose of self-collection of dust. This conventional cleaning equipment has a separate suction channel and a self-cleaning channel. It requires two suction devices, one placed in the suction channel for vacuuming in suction mode and the other in the self-cleaning channel for cleaning the dust inside the vacuum cleaner in self-cleaning mode. The structure is complex, and it is difficult to switch the vacuum cleaner back and forth between suction mode and self-cleaning mode. Technical issues

[0003] The purpose of this application is to provide a vacuum cleaner host and vacuum cleaner device to solve the technical problem of the difficulty in switching back and forth between vacuum cleaning mode and self-cleaning mode in the prior art. Technical solutions

[0004] This application provides a vacuum cleaner main unit, including a body, a motor assembly, a locking structure, and a first elastic reset member. The motor assembly is vertically movable inside the body, and the locking structure is horizontally movable inside the body to lock or unlock the motor assembly. One end of the first elastic reset member is connected to the body, and the other end is connected to the motor assembly. When the motor assembly is pressed, it moves downward and locks with the locking structure. The air inlet of the motor assembly extends into the filter element inside the body. Under the action of external force, the locking structure moves away from the motor assembly to unlock it. Under the action of the first elastic reset member, the motor assembly moves upward and closes the exhaust port. The air inlet of the motor assembly extends out from the filter element inside the body.

[0005] As described above, the locking structure of the vacuum cleaner host includes a locking member and a second elastic reset member. One end of the second elastic reset member is connected to the host body, and the other end is connected to the locking member.

[0006] As described above, the vacuum cleaner host has a first locking block on the side wall of the motor assembly and a second locking block on the locking member. The first locking block and the second locking block engage to fix the motor assembly.

[0007] As described above, the vacuum cleaner host has a third inclined guide wall on the second latching block and a fourth inclined guide wall on the first latching block. The fourth inclined guide wall abuts against the third inclined guide wall to drive the locking member to move away from the motor assembly.

[0008] As described above, the vacuum cleaner also includes a connecting rod and a third elastic reset member. The connecting rod is vertically movable within the body. One end of the third elastic reset member is connected to the connecting rod, and the other end is connected to the body. The connecting rod has a first inclined guide wall, and the locking member has a second inclined guide wall. The first inclined guide wall abuts against the second inclined guide wall. Under the action of an external force, the connecting rod moves upward and drives the locking member to move away from the motor assembly to unlock the motor assembly.

[0009] As described above, in the vacuum cleaner host, the tilt angle of the first inclined guide wall is the same as that of the second inclined guide wall, the tilt angle of the third inclined guide wall is the same as that of the fourth inclined guide wall, and the tilt directions of the second inclined guide wall and the third inclined guide wall are opposite.

[0010] As described above, the vacuum cleaner host includes a connecting rod body, a first connecting part, and a second connecting part. Both the first connecting part and the second connecting part are connected to the connecting rod body. The first inclined guide wall is disposed on the first connecting part, and the third elastic reset member is connected to the second connecting part.

[0011] As described above, the top wall of the vacuum cleaner body has an opening, and the motor assembly is disposed within the opening.

[0012] This application also provides a vacuuming device, which includes a base station and a vacuuming host as described above. The base station is provided with a plug-in slot, and the vacuuming host is plugged into the plug-in slot to connect the inner cavity of the base station with the self-cleaning channel of the vacuuming host.

[0013] As described above, the vacuum cleaner has an abutment post in the insertion slot. When the vacuum cleaner main unit is inserted into the insertion slot, the abutment post drives the locking structure to move away from the motor assembly to unlock the motor assembly. Beneficial effects

[0014] In this application, the vacuum cleaner main unit includes a body, a motor assembly, a locking structure, and a first elastic reset member. The motor assembly is vertically movable inside the body, and the locking structure is horizontally movable inside the body to lock or unlock the motor assembly. One end of the first elastic reset member is connected to the body, and the other end is connected to the motor assembly. Pressing the motor assembly causes it to move downward and lock into place with the locking structure. The air inlet of the motor assembly extends into the filter element inside the body. Under external force, the locking structure moves away from the motor assembly to unlock it. The motor assembly moves upward under the action of the first elastic reset member, sealing its exhaust port. The air inlet of the motor assembly extends out from the filter element inside the body. By driving the motor assembly to move up and down, the vacuum cleaner can switch between vacuuming and self-cleaning modes. The overall structure is simple and enables rapid switching between multiple modes. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a schematic diagram of the structure of a vacuum cleaner host according to an exemplary embodiment;

[0017] Figure 2 is a cross-sectional view of a vacuum cleaner main unit according to an exemplary embodiment;

[0018] Figure 3 is an enlarged view of part A in Figure 2;

[0019] Figure 4 is a cross-sectional view of another section of a vacuum cleaner main unit according to an exemplary embodiment;

[0020] Figure 5 is an exploded view of the structure of a vacuum cleaner host according to an exemplary embodiment;

[0021] Figure 6 is a schematic diagram of the linkage structure according to an exemplary embodiment;

[0022] Figure 7 is a schematic diagram of the structure of a locking block according to an exemplary embodiment;

[0023] Figure 8 is a schematic diagram of the structure of a vacuum cleaner according to an exemplary embodiment;

[0024] Figure 9 is a cross-sectional view of a vacuum cleaner according to an exemplary embodiment;

[0025] Figure 10 is a cross-sectional view of a vacuum cleaner main unit installed after the vacuum cleaner head assembly, according to an exemplary embodiment;

[0026] Figure 11 is a schematic diagram of the structure of a base station end cover according to an exemplary embodiment.

[0027] The components include: 1. Body; 11. Motor assembly; 111. Air inlet; 112. Air outlet; 113. First locking block; 1131. Fourth inclined guide wall; 12. First elastic reset component; 13. Locking component; 131. Second locking block; 1311. Third inclined guide wall; 132. Second inclined guide wall; 14. Second elastic reset component; 15. Connecting rod; 151. Connecting rod body; 152. First connecting part; 1521. First inclined guide wall; 153. Second connecting part; 16. Third elastic reset component; 2. Base station; 21. Insertion slot; 22. Abutment post; 23. Protrusion; 24. Hanging ring; 3. Vacuum head assembly; 31. Hook. The best embodiment of the present invention

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0033] Referring to Figures 1-7, this application provides a vacuum cleaner host, including a body 1, a motor assembly 11, a locking structure, and a first elastic reset member 12. The motor assembly 11 is vertically movable inside the body 1. The locking structure is horizontally movable inside the body 1 to lock or unlock the motor assembly 11. One end of the first elastic reset member 12 is connected to the body 1, and the other end is connected to the motor assembly 11. When the motor assembly 11 is pressed, it moves downward and locks with the locking structure. The air inlet 111 of the motor assembly 11 extends into the filter element inside the body 1. Under the action of external force, the locking structure moves away from the motor assembly 11 to unlock it. Under the action of the first elastic reset member 12, the motor assembly 11 moves upward and closes the exhaust port 112 of the motor assembly 11. The air inlet 111 of the motor assembly 11 extends out from the filter element inside the body 1. The vacuum cleaner can switch between vacuuming mode and self-cleaning mode by moving the drive motor assembly 11 up and down. The overall structure is simple and can achieve quick switching between multiple modes of the vacuum cleaner.

[0034] Specifically, the body 1 has a filter element and a dust cup inside, with the dust cup located below the filter element. The motor assembly 11 has an air inlet 111 and an air outlet 112. The filter element, air inlet 111, and air outlet 112 are connected to form a dust suction channel. When the motor assembly 11 is pressed, the motor assembly 11 moves downward, and the air inlet 111 of the motor assembly 11 is inserted into the filter element, allowing air to be drawn from the filter element and discharged from the air outlet 112. Negative pressure is generated inside the filter element, thereby collecting dust and debris in the dust cup below the filter. When an external force drives the locking member 13 to disengage from the motor assembly 11, the motor assembly 11 moves upward under the action of the first elastic reset member 12. The air inlet 111 of the motor assembly 11 leaves the filter element and is directly connected to the external space. The upward movement of the motor assembly 11 will close the air outlet 112 of the motor assembly 11. After moving upward, the motor assembly 11 blows air into the filter element, generating a positive pressure airflow to remove dust from the filter screen and achieve a self-cleaning effect.

[0035] Specifically, the body 1 has a filter element and a dust cup inside, with the dust cup located below the filter element. The motor assembly 11 has an air inlet 111 and an air outlet 112. The filter element, air inlet 111 and air outlet 112 are connected to form a dust suction channel. When the motor assembly 11 is pressed, the motor assembly 11 moves downward, and the air inlet 111 of the motor assembly 11 is inserted into the filter element, which can draw air from the filter element and discharge it from the air outlet 112. Negative pressure is generated inside the filter element, thereby collecting dust and debris in the dust cup below the filter.

[0036] Furthermore, the locking structure includes a locking member 13 and a second elastic reset member 14, one end of the second elastic reset member 14 being connected to the body 1 and the other end being connected to the locking member 13.

[0037] Furthermore, a first snap-fit ​​block 113 is provided on the side wall of the motor assembly 11, and a second snap-fit ​​block 131 is provided on the locking member 13. The first snap-fit ​​block 113 and the second snap-fit ​​block 131 engage to fix the motor assembly 11.

[0038] Furthermore, the second latching block 131 is provided with a third inclined guide wall 1311, and the first latching block 113 is provided with a fourth inclined guide wall 1131. The fourth inclined guide wall 1131 is used to abut against the third inclined guide wall 1311 to drive the locking member 13 to move away from the motor assembly 11.

[0039] Furthermore, the vacuum cleaner also includes a connecting rod 15 and a third elastic reset member 16. The connecting rod 15 is vertically movable within the body 1. One end of the third elastic reset member 16 is connected to the connecting rod 15, and the other end is connected to the body 1. The connecting rod 15 is provided with a first inclined guide wall 1521, and the locking member 13 is provided with a second inclined guide wall 132. The first inclined guide wall 1521 abuts against the second inclined guide wall 132. Under the action of external force, the connecting rod 15 moves upward and drives the locking member 13 to move away from the motor assembly 11, thereby unlocking the motor assembly 11.

[0040] Furthermore, the tilt angle of the first inclined guide wall 1521 is the same as that of the second inclined guide wall 132, the tilt angle of the third inclined guide wall 1311 is the same as that of the fourth inclined guide wall 1131, and the tilt directions of the second inclined guide wall 132 and the third inclined guide wall 1311 are opposite.

[0041] Furthermore, the connecting rod 15 includes a connecting rod body 151, a first connecting portion 152, and a second connecting portion 153. Both the first connecting portion 152 and the second connecting portion 153 are connected to the connecting rod body 151. The first inclined guide wall 1521 is disposed on the first connecting portion 152, and the third elastic reset member 16 is connected to the second connecting portion 153.

[0042] Furthermore, the top wall of the body 1 is provided with an opening, and the motor assembly 11 is disposed in the opening.

[0043] Referring to Figures 8-11, this application also provides a vacuuming device, which includes a base station 2 and a vacuuming host as described above. The base station 2 is provided with a plug-in slot 21, and the vacuuming host is plugged into the plug-in slot 21 to connect the inner cavity of the base station 2 with the self-cleaning channel of the vacuuming host.

[0044] Furthermore, the insertion slot 21 is provided with an abutment post 22. When the vacuum cleaner main unit is inserted into the insertion slot 21, the abutment post 22 drives the locking structure to move away from the motor assembly 11 to unlock the motor assembly 11. When the vacuum cleaner main unit is inserted into the base station 2, the abutment post 22 on the base station 2 drives the connecting rod 15 to move upward. The first inclined guide wall 1521 moves upward along the second inclined guide wall 132 to drive the locking member 13 to disengage from the motor assembly 11. The motor assembly 11 moves upward under the action of the first elastic reset member 12. The air inlet 111 of the motor assembly 11 leaves the filter element and is directly connected to the external space. The upward movement will close the exhaust port 112. After the upward movement, the motor assembly 11 blows air into the filter element, generating positive pressure airflow, removing dust from the filter screen, and achieving a self-cleaning effect.

[0045] In existing technology, the bottom of the dust cup is equipped with an elastic baffle. During vacuuming, the elastic baffle opens the suction port on the dust cup, while the dust collection port of the main unit closes. In self-cleaning mode, positive pressure airflow pushes the elastic baffle to close the suction port, while the dust collection port of the main unit opens, improving the self-cleaning effect. However, the sealing effect of the elastic baffle is poor, and dust can still leak from the suction port. Specifically, in this invention, the base station 2 has a base station 2 end cover on its top, and a connector slot 21 is located on the base station 2 end cover. The connector slot 21 contains a protrusion 23. When the vacuum cleaner main unit is plugged into the base station 2, the protrusion 23 inserts into the suction port to seal it. Through the cooperation of the protrusion 23 and the suction port, a good sealing effect is achieved, effectively preventing dust leakage from the suction port.

[0046] Specifically, a charging pin is provided on the protrusion 23, and a charging head that cooperates with the charging pin is provided on the vacuum cleaner host. When the vacuum cleaner host is plugged into the base station 2, the vacuum cleaner host can draw power from the base station 2 to realize the charging function.

[0047] Specifically, the vacuuming device includes a vacuum head assembly 3, the bottom of which has a suction port containing a brush. The main vacuum cleaner can be plugged into the vacuum head assembly 3 to perform vacuuming. The main vacuum cleaner can also be plugged into the base station 2 to perform a self-cleaning function, collecting dust, hair, debris, etc., from the dust cup into the base station 2. A hanging ring 24 is provided on the side wall of the base station 2, and a matching hook 31 is provided on the outer wall of the vacuum head assembly 3. When the hook 31 and the hanging device are engaged, the exhaust port of the base station 2 faces the vacuum head.

[0048] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit the scope of protection of this application.

Claims

1. A vacuum cleaner main unit, characterized in that, The device includes a body, a motor assembly, a locking structure, and a first elastic reset member. The motor assembly is vertically movable inside the body. The locking structure is horizontally movable inside the body to lock or unlock the motor assembly. One end of the first elastic reset member is connected to the body, and the other end is connected to the motor assembly. When the motor assembly is pressed, it moves downward and locks itself in place with the locking structure. The air inlet of the motor assembly extends into the filter element inside the body. Under external force, the locking structure moves away from the motor assembly to unlock it. Under the action of the first elastic reset member, the motor assembly moves upward and closes its exhaust port. The air inlet of the motor assembly extends out from the filter element inside the body.

2. The vacuum cleaner main unit according to claim 1, characterized in that, The locking structure includes a locking component and a second elastic reset component. One end of the second elastic reset component is connected to the machine body, and the other end is connected to the locking component.

3. The vacuum cleaner main unit according to claim 2, characterized in that, The motor assembly has a first locking block on its side wall and a second locking block on its locking member. The first locking block and the second locking block engage to fix the motor assembly.

4. The vacuum cleaner main unit according to claim 3, characterized in that, The second latching block is provided with a third inclined guide wall, and the first latching block is provided with a fourth inclined guide wall. The fourth inclined guide wall is used to abut against the third inclined guide wall to drive the locking member to move away from the motor assembly.

5. The vacuum cleaner main unit according to claim 4, characterized in that, The vacuum cleaner also includes a connecting rod and a third elastic reset member. The connecting rod is movably disposed within the body. One end of the third elastic reset member is connected to the connecting rod, and the other end is connected to the body. The connecting rod is provided with a first inclined guide wall, and the locking member is provided with a second inclined guide wall. The first inclined guide wall abuts against the second inclined guide wall. Under the action of external force, the connecting rod moves upward and drives the locking member to move away from the motor assembly, thereby unlocking the motor assembly.

6. The vacuum cleaner main unit according to claim 5, characterized in that, The first inclined guide wall has the same inclination angle as the second inclined guide wall, the third inclined guide wall has the same inclination angle as the fourth inclined guide wall, and the second inclined guide wall and the third inclined guide wall have opposite inclination directions.

7. The vacuum cleaner main unit according to claim 5, characterized in that, The connecting rod includes a connecting rod body, a first connecting part, and a second connecting part. Both the first connecting part and the second connecting part are connected to the connecting rod body. The first inclined guide wall is disposed on the first connecting part, and the third elastic reset member is connected to the second connecting part.

8. The vacuum cleaner main unit according to claim 1, characterized in that, The top wall of the machine body has an opening, and the motor assembly is disposed in the opening.

9. A vacuuming device, characterized in that, The vacuuming device includes a base station and a vacuum cleaner host as described in any one of claims 1-8. The base station is provided with a plug-in slot, and the vacuum cleaner host is plugged into the plug-in slot to connect the inner cavity of the base station with the self-cleaning channel of the vacuum cleaner host.

10. The vacuuming device according to claim 9, characterized in that, The insertion slot is provided with an abutment post. When the vacuum cleaner main unit is inserted into the insertion slot, the abutment post drives the locking structure to move away from the motor assembly in order to unlock the motor assembly.