Suction generating device and vacuum cleaner

Abstract

The present invention discloses a suction generating device and a vacuum cleaner. The suction generating device comprises a shell, a containing cavity is provided in the shell, an air inlet connected to the containing cavity is provided on one side of the shell, and an air outlet connected to the containing cavity is provided on the other side; two impellers, one impeller is rotatably provided on the shell and disposed adjacent to the air inlet, and the other impeller is rotatably provided on the shell and disposed adjacent to the air outlet; and a driving member, the driving member is transmission-connected to the two impellers, and the driving member drives the two impellers to rotate. The technical solution of the present invention increases the suction generated by the vacuum cleaner, thereby improving the dust collection effect of the vacuum cleaner.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaners, and in particular to a suction generating device and a vacuum cleaner using the suction generating device. Background Art

[0002] With the continuous progress and development of society, the living standard of our country is constantly improving, and vacuum cleaners have been widely used. However, the existing vacuum cleaners usually generate suction by driving an impeller through a driving motor, which makes the suction generated by the vacuum cleaner smaller, thereby affecting the dust collection effect of the vacuum cleaner.

[0003] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide a suction generating device, which is applied to a vacuum cleaner and aims to increase the suction generated by the vacuum cleaner, thereby improving the dust collection effect of the vacuum cleaner.

[0005] To achieve the above object, the suction generating device proposed by the present invention comprises:

[0006] A housing, wherein a housing is provided with a housing cavity, an air inlet communicating with the housing cavity is provided on one side of the housing, and an air outlet communicating with the housing cavity is provided on the other side of the housing;

[0007] two impellers, one of which is rotatably disposed on the housing and adjacent to the air inlet, and the other of which is rotatably disposed on the housing and adjacent to the air outlet; and

[0008] A driving member is connected to the two impellers in a transmission manner, and the driving member drives the two impellers to rotate.

[0009] In one embodiment of the present invention, the suction generating device also includes a connecting shaft, which is rotatably disposed on the shell and located in the accommodating cavity, the two impellers are respectively mounted on both ends of the connecting shaft, and the driving member is transmission-connected to the connecting shaft and drives the connecting shaft to rotate.

[0010] In one embodiment of the present invention, the suction generating device further comprises a first connecting member, the first connecting member is sleeved on the outer side of the connecting shaft, and the driving member is transmission-connected to the first connecting member and drives the first connecting member to rotate.

[0011] In one embodiment of the present invention, the suction generating device further includes a second connecting member, the driving member includes an output shaft, the second connecting member is sleeved on the outside of the output shaft, and the second connecting member is transmission-connected to the first connecting member.

[0012] In one embodiment of the present invention, the first connecting member includes a first connecting body and a first transmission tooth, the first connecting body is sleeved on the outer side of the connecting shaft, and the first transmission tooth is arranged on the outer side of the first connecting body;

[0013] The second connecting member includes a second connecting body and a second transmission tooth. The second connecting body is sleeved on the outer side of the connecting shaft. The second transmission tooth is arranged on the outer side of the second connecting body. The second transmission tooth is meshed with the first transmission tooth.

[0014] In one embodiment of the present invention, the extending direction of the first transmission tooth is set at an angle with the axial direction of the connecting shaft, and the extending direction of the second transmission tooth is set at an angle with the axial direction of the output shaft.

[0015] In one embodiment of the present invention, an extension direction of the output shaft is arranged at an angle to a connection direction perpendicular to the connection shaft.

[0016] In one embodiment of the present invention, the shell is provided with a plurality of convex ribs on the cavity wall of the accommodating cavity, and the plurality of convex ribs are arranged in a spiral shape along the extending direction of the accommodating cavity.

[0017] In one embodiment of the present invention, the suction generating device further includes a controller, and the controller is electrically connected to the driving member.

[0018] The present invention further provides a vacuum cleaner, comprising a suction generating device, wherein the suction generating device comprises:

[0019] A housing, wherein a housing is provided with a housing cavity, an air inlet communicating with the housing cavity is provided on one side of the housing, and an air outlet communicating with the housing cavity is provided on the other side of the housing;

[0020] two impellers, one impeller being rotatably disposed on the housing and adjacent to the air inlet, and the other impeller being rotatably disposed on the housing and adjacent to the air outlet; and

[0021] A driving member is connected to the two impellers in a transmission manner, and the driving member drives the two impellers to rotate.

[0022] The technical solution of the present invention is to provide two impellers at the air inlet and the air outlet of the shell, and drive the two impellers to rotate through a driving member. The two impellers rotate simultaneously to generate a larger airflow, thereby increasing the suction force generated by the vacuum cleaner, thereby improving the dust collection effect of the vacuum cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of an embodiment of a suction generating device of the present invention.

[0025] Description of Figure Numbers:

[0026] Label name Label name 100 case 500 First connecting piece 110 Accommodation cavity 510 First connection body 120 Air Inlet 520 First transmission gear 130 Air outlet 600 Second connecting piece 140 ribs 610 Second connection body 200 impeller 620 Second transmission gear 300 Drive parts 700 Controller 400 Connecting shaft

[0027] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] The invention provides a suction force generating device applied to a vacuum cleaner.

[0033] Please refer to Figure 1 In one embodiment of the present invention, the suction generating device includes a shell 100, two impellers 200 and a driving member 300; a housing 110 is provided in the shell 100, an air inlet 120 communicating with the housing 110 is provided on one side of the shell 100, and an air outlet 130 communicating with the housing 110 is provided on the other side; one impeller 200 is rotatably disposed on the shell 100 and adjacent to the air inlet 120, and the other impeller 200 is rotatably disposed on the shell 100 and adjacent to the air outlet 130; the driving member 300 is transmission-connected to the two impellers 200, and the driving member 300 drives the two impellers 200 to rotate.

[0034] In one embodiment of the present invention, the housing 100 is mainly used to accommodate the impeller 200 and guide the airflow generated by the impeller 200. The housing 100 and the accommodating chamber 110 can both be circular structures, so that the flow rate of the airflow in each part of the accommodating chamber 110 is relatively uniform, and it is easy to process and shape. The material of the housing 100 can be metal, such as aluminum, aluminum alloy, copper, copper alloy, iron, stainless steel; of course, it can also be plastic, such as ABS, POM, PS, PMMA, PC, PET, etc. Further, the caliber of the air inlet 120 and the air outlet 130 is the same as the size of the accommodating chamber 110, so as to increase the flow rate of the airflow between the air inlet 120 and the air outlet 130. In addition, the two impellers 200 are arranged relative to each other, mainly used to generate airflow when rotating, so as to generate suction, and include a wheel body and a plurality of blades arranged at intervals on the surface of the wheel body, and the plurality of blades are extended along the radial direction of the wheel body and form an angle with the axial direction of the wheel body. The driving member 300 is mainly used to provide power to rotate the two impellers 200. In one embodiment of the present invention, the driving member 300 uses a brushless motor. It can be understood that the brushless motor has the advantages of high control, high speed, low noise, smooth operation, long life, low maintenance cost, etc., which can improve the control accuracy, work efficiency and service life of the driving member 300.

[0035] The technical solution of the present invention is to provide two impellers 200 at the air inlet 120 and the air outlet of the housing 100, and drive the two impellers 200 to rotate through a driving member 300. The two impellers 200 rotate simultaneously to generate a larger airflow, thereby increasing the suction force generated by the vacuum cleaner, thereby improving the dust collection effect of the vacuum cleaner. In addition, while increasing the suction force, the number of driving members 300 used is reduced.

[0036] In one embodiment of the present invention, the suction generating device also includes a connecting shaft 400, which is rotatably disposed on the shell 100 and located in the accommodating chamber 110, and the two impellers 200 are respectively mounted on both ends of the connecting shaft 400, and the driving member 300 is transmission-connected to the connecting shaft 400 and drives the connecting shaft 400 to rotate.

[0037] Specifically, the driving member 300 drives the connecting shaft 400 to rotate, and the connecting shaft 400 drives the two impellers 200 to rotate, thereby realizing the transmission connection between the driving member 300 and the two impellers 200. It can be understood that installing the two impellers 200 through a connecting shaft 400 facilitates the driving member 300 to drive the two impellers 200 to rotate synchronously, and also simplifies the installation structure of the impeller 200 and the housing 100, and reduces the number of connecting shafts 400 used to reduce the manufacturing cost.

[0038] In one embodiment of the present invention, the suction generating device further comprises a first connecting member 500 , which is sleeved on the outer side of the connecting shaft 400 , and the driving member 300 is transmission-connected to the first connecting member 500 and drives the first connecting member 500 to rotate.

[0039] It can be understood that the setting of the first connecting member 500 provides a connection position for the driving member 300, so that it does not need to be connected to the two ends of the connecting shaft 400, avoiding the influence of the driving member 300 on the air inlet 120 or the air outlet 130, thereby improving the circulation rate of the airflow at the air inlet 120 and the air outlet 130. Further, the first connecting member 500 and the connecting shaft 400 are detachably connected. It can be understood that such a setting allows the first connecting member 500 to be removed from the connecting shaft 400 for repair or replacement when the first connecting member 500 is damaged, thereby avoiding the need for repair or replacement of the whole due to local damage, and reducing the cost of repair or replacement. Among them, the first connecting member 500 and the connecting shaft 400 can be connected by screws or buckles.

[0040] In one embodiment of the present invention, the suction generating device further includes a second connecting member 600 , the driving member 300 includes an output shaft, the second connecting member 600 is sleeved on the outside of the output shaft, and the second connecting member 600 is transmission-connected to the first connecting member 500 .

[0041] It is understandable that the arrangement of the second connecting member 600 increases the distance between the connecting shaft 400 and the driving member 300, which facilitates the installation of the driving member 300. Moreover, such an arrangement also makes it unnecessary to arrange a transmission structure that transmits to the first connecting member 500 on the output shaft, thereby ensuring the strength of the output shaft. Further, the second connecting member 600 and the output shaft are detachably connected. It is understandable that such an arrangement enables the second connecting member 600 to be removed from the output shaft for repair or replacement when the second connecting member 600 is damaged, thereby avoiding the need for repair or replacement of the entire part due to local damage, and reducing the cost of repair or replacement. Among them, the second connecting member 600 and the output shaft can be connected by screws or buckles, etc.

[0042] In one embodiment of the present invention, the first connecting member 500 includes a first connecting body 510 and a first transmission tooth 520, the first connecting body 510 is sleeved on the outer side of the connecting shaft 400, and the first transmission tooth 520 is arranged on the outer side of the first connecting body 510; the second connecting member 600 includes a second connecting body 600 and a second transmission tooth 620, the second connecting body 600 is sleeved on the outer side of the connecting shaft 400, the second transmission tooth 620 is arranged on the outer side of the second connecting body 600, and the second transmission tooth 620 is meshed with the first transmission tooth 520.

[0043] It can be understood that the meshing transmission of the second transmission teeth 620 and the first transmission teeth 520 makes the transmission process smooth and reliable, thereby ensuring that the two impellers 200 rotate smoothly to generate a smooth airflow, and then ensuring that the suction generating device generates a stable suction. In addition, by changing the transmission ratio of the first transmission teeth 520 and the transmission teeth, the rotation rate of the two impellers 200 can be adjusted to increase or reduce the suction generated by the suction generating device. It should be noted that the present application is not limited to this. In other embodiments, the first connecting member 500 and the second connecting member 600 can also be pulleys, and the transmission of the two is achieved by arranging a belt on the outside of the two; or the first connecting member 500 and the second connecting member 600 are sprockets, and the transmission of the two is achieved by arranging a chain on the outside of the two.

[0044] In one embodiment of the present invention, the extension direction of the first transmission teeth 520 is set at an angle to the axial direction of the connecting shaft 400, and the extension direction of the second transmission teeth 620 is set at an angle to the axial direction of the output shaft.

[0045] Specifically, the first connecting member 500 and the second connecting member 600 form a bevel gear match. It can be understood that such a configuration increases the transmission capacity of the first connecting member 500 and the second connecting member 600, and the meshing is stable, the noise generated is small, and the processing environment is improved.

[0046] In one embodiment of the present invention, the extension direction of the output shaft is arranged at an angle to the connection direction which is perpendicular to the connection shaft 400 .

[0047] Specifically, the angle between the output shaft and the connection direction perpendicular to the connection shaft 400 can be an acute angle or a right angle, so that the driving member 300 is arranged inclined or horizontally, so that it can be installed more compactly and reduce the occupied space.

[0048] In one embodiment of the present invention, the housing 100 is provided with a plurality of convex ribs 140 on the cavity wall of the accommodating cavity 110 . The plurality of convex ribs 140 are arranged in a spiral shape along the extending direction of the accommodating cavity 110 .

[0049] It can be understood that the convex rib 140 has a guiding effect on the airflow generated by the air inlet 120, ensuring the consistency of the airflow direction of the air outlet 130 and the air inlet 120, thereby increasing the wind pressure to increase the suction generated by the suction generating device. Further, a plurality of convex ribs 140 are evenly distributed around the center of the accommodating cavity 110 to ensure the stability of the airflow flow rate at various locations of the accommodating cavity 110.

[0050] In one embodiment of the present invention, the suction force generating device further includes a controller 700 , and the controller 700 is electrically connected to the driving member 300 .

[0051] It can be understood that the controller 700 controls the working state of the driving member 300, such as start, pause, speed gear, etc., thereby improving the automation level of the suction generating device and reducing the labor intensity of workers.

[0052] The present invention also proposes a vacuum cleaner, which includes a suction generating device. The specific structure of the suction generating device refers to the above-mentioned embodiment. Since the vacuum cleaner adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0053] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A suction force generating device, applied to a vacuum cleaner, characterized in that: The suction generating device comprises: A housing, wherein a housing is provided with a housing cavity, an air inlet communicating with the housing cavity is provided on one side of the housing, and an air outlet communicating with the housing cavity is provided on the other side of the housing; two impellers, one of which is rotatably disposed on the housing and adjacent to the air inlet, and the other of which is rotatably disposed on the housing and adjacent to the air outlet; and A driving member, the driving member is drivingly connected to the two impellers, and the driving member drives the two impellers to rotate; The suction generating device further comprises a connecting shaft, the connecting shaft is rotatably disposed on the housing and located in the accommodating chamber, the two impellers are respectively sleeved on both ends of the connecting shaft, and the driving member is drivingly connected to the connecting shaft and drives the connecting shaft to rotate; The suction force generating device further comprises a first connecting member, the first connecting member is sleeved on the outer side of the connecting shaft, and the driving member is transmission-connected to the first connecting member and drives the first connecting member to rotate; The suction force generating device further comprises a second connecting member, the driving member comprises an output shaft, the second connecting member is sleeved on the outer side of the output shaft, and the second connecting member is drivingly connected to the first connecting member; The first connecting member includes a first connecting body and a first transmission tooth, wherein the first connecting body is sleeved on the outer side of the connecting shaft, and the first transmission tooth is arranged on the outer side of the first connecting body; The second connecting member includes a second connecting body and a second transmission tooth, wherein the second connecting body is sleeved on the outer side of the connecting shaft, the second transmission tooth is arranged on the outer side of the second connecting body, and the second transmission tooth is meshed with the first transmission tooth; The extending direction of the first transmission tooth is set at an angle with the axial direction of the connecting shaft, and the extending direction of the second transmission tooth is set at an angle with the axial direction of the output shaft; The shell is provided with a plurality of convex ribs on the cavity wall of the accommodating cavity, and the plurality of convex ribs are arranged in a spiral shape along the extending direction of the accommodating cavity; The two impellers have the same size, the diameter of the air inlet is the same as the diameter of the air outlet, the shell is cylindrical, the accommodating cavity is cylindrical, and the air inlet and the air outlet are located at opposite ends of the shell; The diameters of the air inlet and the air outlet are the same as the size of the accommodating cavity; The extension direction of the output shaft forms an acute angle with the connection direction perpendicular to the connection shaft, so that the driving member is arranged at an angle; The driving member is located on a side close to the air outlet; The size of the driving member is smaller than the diameter of the housing; The first transmission tooth is arranged on a side of the first connecting body away from the air inlet; The size of the side circumference of the first connecting body gradually increases along the direction from the air inlet to the air outlet, and the size of the side circumference of the second connecting body gradually decreases along the direction from the air inlet to the air outlet.

2. The suction generating device according to claim 1, characterized in that: The suction force generating device further comprises a controller, and the controller is electrically connected to the driving member.

3. A vacuum cleaner, characterized in that: Comprising the suction generating device as claimed in claim 1 or 2.

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