Airflow inlet part of airflow generator and cleaning device

Abstract

The present application relates to the field of electromechanical technology, and provides an airflow introduction part of an airflow generator and a cleaning device, wherein the airflow introduction part includes a volute, an impeller and an air guide wheel, the volute is sleeved on the outer sides of the impeller and the air guide wheel, the first side of the volute is provided with an airflow inlet, the second side of the volute is provided with an airflow outlet, the impeller is located at the airflow inlet and is arranged on the first side of the air guide wheel, a gap is provided between the second side of the impeller and the first side of the air guide wheel, and the gap forms a first fluid channel. The present application achieves the effect of directly taking away the heat in the middle area of ​​the airflow introduction part, and greatly improves the heat dissipation performance of the airflow generator.

Description

Technical Field

[0001] The present application relates to the field of electromechanical technology, and more specifically, to an airflow inlet portion of an airflow generator and a cleaning device. Background Art

[0002] In some electrical appliances that need to provide suction to work, airflow generators are core components. For example, airflow generators are needed in vacuum cleaners, sweeping robots and other products. Since vacuum cleaners, sweeping robots and other products pursue miniaturization, heat dissipation during product use is an issue that must be considered during research and development.

[0003] Among them, the motor part of the airflow generator is the main component that generates heat in this type of product. The heat dissipation solution of existing products is to set different fluid channels in the airflow generator, so that the fluid generated by the airflow generator can take away the heat through these fluid channels, thereby achieving the effect of heat dissipation. Although the heat dissipation structure design of products currently on the market that include airflow generators can meet basic usage requirements, if the product works for too long, the dissipation performance will be greatly reduced and cannot meet the basic requirements of work. Therefore, how to further improve the heat dissipation effect of the airflow generator is a technical problem that technicians in this field have been studying and need to solve. Summary of the invention

[0004] The purpose of the present application is to provide an airflow introduction part and a cleaning device of an airflow generator, so as to solve the technical problem that the heat dissipation of the existing airflow generator is not ideal.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] In a first aspect of the present application, an air flow inlet portion of an air flow generator is provided, the air flow inlet portion comprising a volute, an impeller and an air guide wheel, the volute is sleeved on the outer sides of the impeller and the air guide wheel, an air flow inlet is provided on a first side of the volute, an air flow outlet is provided on a second side of the volute, the impeller is located at the air flow inlet and is arranged on a first side of the air guide wheel, a gap is provided between the second side of the impeller and the first side of the air guide wheel, and the gap forms a first fluid channel.

[0007] Preferably, an air guide vane is provided on the outer side of the air guide wheel, and the air guide vane and the volute form a second fluid channel, and the second fluid channel is connected to the first side of the first fluid channel.

[0008] Preferably, the outer side of the wind guide wheel is provided with wind guide blades, specifically: the outer wall surface of the wind guide wheel is provided with a plurality of wind guide blades at equal intervals.

[0009] Preferably, the air guide blades and the volute form the second fluid channel specifically in that the adjacent air guide blades and the volute form the second fluid channel.

[0010] Preferably, a fluid contact end is provided on the inner wall of the volute corresponding to the first side of the first fluid channel.

[0011] Preferably, the fluid contact end is specifically: a curved surface formed by inward bending of a first volute surface sleeved on the outer side of the impeller and a second volute surface sleeved on the outer side of the guide wheel.

[0012] Preferably, the air guide wheel is provided with a first air guide hole, and the first air guide hole is located at the second side of the first fluid passage.

[0013] According to a second aspect of the present application, a cleaning device is provided, which includes an airflow generator, wherein the airflow generator includes the airflow introduction portion described in any one of the first aspects.

[0014] Preferably, the cleaning device is a sweeping robot.

[0015] Preferably, the cleaning device is a vacuum cleaner.

[0016] The beneficial effect of the present application is that a first fluid channel is formed by setting a gap between the impeller and the guide wheel of the air flow inlet part, so that the fluid introduced by the air flow inlet part can flow into the middle area of ​​the fluid inlet part through the first fluid channel and then be discharged, thereby achieving the effect of directly taking away the heat from the middle area of ​​the air flow inlet part, thereby greatly improving the heat dissipation performance of the air flow generator.

[0017] The further effects of the above-mentioned non-conventional preferred manner will be described below in conjunction with specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural schematic diagram of an airflow generator in the prior art;

[0020] Figure 2 A schematic structural diagram of an airflow inlet portion of an airflow generator provided in one embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of an airflow generator provided in one embodiment of the present invention;

[0022] Figure 4 An exploded structural diagram of an airflow generator provided in one embodiment of the present invention;

[0023] Figure 5 A schematic structural diagram of an air guide wheel in an air flow generator provided in one embodiment of the present invention;

[0024] Figure 6 A partial enlarged view of a first fluid channel in an airflow generator provided in one embodiment of the present invention;

[0025] Figure 7 A schematic diagram of fluid flow in an airflow generator provided in one embodiment of the present invention.

[0026] Among them, the reference numerals in the figure are:

[0027] 01 Air flow inlet 02 Motor Department 11 Volute 12 impeller 13 Air guide wheel 21 Motor bracket 22 Motor body 23 Motor cover 24 Motor driver board 111 Fluid contact end 132 Wind guide blade a The first air guide hole A, B, C fluid DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. 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] In the prior art, the structure of the airflow generator is as follows: Figure 1 As shown in the figure, the fluid enters the air flow generator from the air inlet under the action of suction. Figure 1 In the air flow generator shown, there is only one fluid channel, namely along Figure 1 The fluid will flow in the direction of the arrow. That is, the fluid will pass through the gap between the guide wheel and the motor cover, pass through the outside of the motor winding, and then be discharged from the motor drive board. In this process, the fluid flows through the outside of the motor winding, which can help the motor winding dissipate heat.

[0030] However, the defect of the prior art is that, due to the flow path of the fluid, only the outer side of the motor winding can fully dissipate the heat. The inner side of the motor winding and other components of the motor cannot be effectively dissipated. It can be seen that the heat dissipation efficiency of the above structure is relatively low, which easily leads to excessively high temperature inside the airflow generator.

[0031] In view of this, the present invention provides an airflow introduction part of an airflow generator, which improves the heat dissipation effect by improving the internal structure.

[0032] See also Figure 2-7 FIG. 1 is a specific embodiment of the airflow inlet portion of the airflow generator provided by the present invention. In this embodiment, the airflow inlet portion of the airflow generator may include a volute 11, an impeller 12 and an air guide wheel 13, such as Figure 2In addition, the overall structure of the airflow generator where the airflow introduction part is located includes an airflow introduction part 01 and a motor part 02, wherein the motor part 02 may include a motor bracket 21 and a motor body 22, and may also include a motor cover 23 and a motor drive board 24 and other components, as shown in FIG. Figure 3-4 shown.

[0033] Specifically, the specific structure and position relationship of the volute 11, the impeller 12 and the guide wheel 13 are as follows: Figure 2 As shown, in the airflow introduction part 01, the impeller 12 is located on the first side of the air guide wheel 13. Figure 4 As shown, the first side of the guide wheel 13 is above the guide wheel 13. The first side of the volute 11 is provided with an air flow inlet, the second side of the volute is provided with an air flow outlet, the impeller 12 is located at the air flow inlet and is arranged on the first side of the guide wheel 13, and the volute 11 is sleeved on the outer sides of the impeller 12 and the guide wheel 13. Figure 4 As shown, the first side of the guide wheel 13 is the top of the guide wheel 13 , the first side of the volute 11 is the top of the volute 11 , and the second side of the volute 11 is the bottom of the volute 11 .

[0034] like Figure 5 As shown, in this embodiment, a first fluid channel is provided between the second side of the impeller 12 and the first side of the wind guide wheel 13. Figure 2 That is, below the impeller 12. Different from Figure 1 In the prior art shown in the figure, the impeller and the wind guide wheel are fitted together. In the airflow introduction part provided in this embodiment, a gap is provided between the second side of the impeller 12 and the first side of the wind guide wheel 13, and the first fluid channel is formed by the gap. When the airflow generator is used, the first fluid channel allows the fluid introduced by the airflow introduction part 01 to flow into the middle area of ​​the fluid introduction part 01 through the first fluid channel and then be discharged from the airflow outlet, so that the heat in the middle area of ​​the airflow introduction part 01 can be directly taken away, which can improve the heat dissipation performance of the airflow generator.

[0035] The structure of the wind guide wheel 13 is as follows: Figure 5 As shown, the outer side of the wind guide wheel 13 is provided with a wind guide blade 132. Specifically, a plurality of wind guide blades 132 are evenly spaced on the outer wall of the wind guide wheel 13. The wind guide blades 132 and the volute 11 form a second fluid channel, that is, two adjacent wind guide blades 132 will enclose together with the volute 11 to form a cavity, namely, the second fluid channel.

[0036] A fluid contact end is provided on the inner wall of the volute 11 corresponding to the first side of the first fluid passage. Figure 6As shown, the left side of the figure close to the inner wall of the volute is the first side of the first fluid channel, and similarly, the right side of the figure away from the inner wall of the volute is the second side of the first fluid channel. Figure 2 As shown, the specific structure of the fluid contact end is: a curved surface formed by inward bending of a first volute surface sleeved on the outer side of the impeller and a second volute surface sleeved on the outer side of the guide wheel.

[0037] The wind guide wheel 13 is provided with a first wind guide hole a. Figure 5 As shown, a plurality of first air guide holes a are sequentially arranged above the first side of the air guide wheel 13. Figure 2 As shown, the first air guide hole is located on the second side of the first fluid channel.

[0038] It should be noted that in the air flow inlet of the air flow generator with the above structure, when the impeller 12 rotates to cause fluid to be sucked in, the flow of the fluid in the air flow inlet is as follows: Figure 7 As shown by the arrow in the middle. After the sucked fluid A enters the fluid inlet portion from the impeller, it first contacts the fluid contact portion on the inner wall of the volute 1, and splits at the fluid contact portion into fluid B and fluid C. Among them, fluid B enters the first fluid channel, and then flows downward through the first air guide hole a, and fluid C will enter the second fluid channel and flow toward the second direction of the airflow generator (i.e., downward as shown in the figure).

[0039] It is understandable that the above fluid flow method not only has the same heat dissipation effect as the prior art, but also can dissipate heat in the central area of ​​the fluid introduction part 01. Specifically, the heat generated by the motor part 02 in the central area of ​​the fluid introduction part 01 can be taken away through the first fluid channel, thereby improving the heat dissipation effect of the airflow generator.

[0040] It can be seen from the above technical solution that the beneficial effect of this embodiment is: by improving the structure of the airflow generator, a first fluid channel and a second fluid channel are set up, so that the fluid can fully dissipate heat on the outer side and the central sides of the fluid inlet part 01, thereby improving the heat dissipation efficiency of the airflow generator.

[0041] In practical applications, the airflow introduction part of the airflow introduction part provided by the present invention can be applied to a cleaning device including the airflow introduction part, wherein the cleaning device can include but is not limited to products such as a sweeping robot and a vacuum cleaner.

[0042] Those skilled in the art will appreciate that the embodiments of the present invention may be provided as methods or computer program products. Therefore, the present invention may be implemented in the form of a complete hardware embodiment, a complete software embodiment, or a combination of software and hardware.

[0043] The various embodiments of the present invention are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0044] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0045] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An airflow inlet portion of an airflow generator, characterized in that: The airflow introduction part comprises a volute, an impeller and an air guide wheel, the volute is sleeved on the outer sides of the impeller and the air guide wheel, an airflow inlet is provided on the first side of the volute, an airflow outlet is provided on the second side of the volute, the impeller is located at the airflow inlet and arranged on the first side of the air guide wheel, a gap is provided between the second side of the impeller and the first side of the air guide wheel, and the gap forms a first fluid channel; An air guide vane is disposed on the outer side of the air guide wheel, the air guide vane and the volute form a second fluid channel, and the second fluid channel is connected to the first side of the first fluid channel; The air guide plate and the volute form a second fluid channel specifically as follows: The adjacent air guide blades and the volute are enclosed to form the second fluid channel; The air guide wheel is provided with a first air guide hole, and the first air guide hole is located on the second side of the first fluid channel; A fluid contact end is provided on the inner wall of the volute corresponding to the first side of the first fluid channel.

2. The airflow introduction portion of the airflow generator according to claim 1, characterized in that: The outer side of the wind guide wheel is provided with a wind guide piece, which is specifically: The outer wall surface of the wind guide wheel is provided with a plurality of wind guide vanes at equal intervals.

3. The airflow introduction portion of the airflow generator according to claim 1, characterized in that: The fluid contact end is specifically: A first volute surface sleeved on the outer side of the impeller and a second volute surface sleeved on the outer side of the guide wheel are bent inward to form a curved surface.

4. A cleaning device, comprising an airflow generator, characterized in that: The airflow generator comprises the airflow introduction portion according to any one of claims 1 to 3.

5. The cleaning device according to claim 4, characterized in that The cleaning device is a sweeping robot.

6. The cleaning device according to claim 4, characterized in that The cleaning device is a vacuum cleaner.

Images