CN217518920U

CN217518920U - Volute structure, volute fan and cleaning robot

Info

Publication number: CN217518920U
Application number: CN202220489912.XU
Authority: CN
Inventors: 张哲�; 蒋育江; 陈奇
Original assignee: Midea Robozone Technology Co Ltd
Current assignee: Midea Robozone Technology Co Ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-09-30
Anticipated expiration: 2032-03-08

Abstract

The application discloses spiral case structure, spiral case fan and cleaning machines people. The volute structure is provided with an air duct, and the height of the air duct is gradually increased along the direction of air flow. The utility model provides a spiral case structure, spiral case fan and cleaning machines people form there is the wind channel, and the height in wind channel increases along the air current direction gradually, can guarantee that the air-out mode of spiral case structure accords with the diffusion condition of aerodynamics, under the condition that the electric power of the spiral case fan that has spiral case structure is the same, can effectively improve this spiral case fan's efficiency.

Description

Volute structure, volute fan and cleaning robot

Technical Field

The application relates to the technical field of centrifugal fans, in particular to a volute structure, a volute fan and a cleaning robot.

Background

Most volute type centrifugal fans at present adopt Archimedes spiral air duct structures, horizontal gradual change expansion structures are presented, the expansion range of the volute structures of partial centrifugal fans is not obvious, the basic fan efficiency is 35% -42%, the fan efficiency is low, and the fan utilization rate is not high.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a volute structure, a volute fan and a cleaning robot.

The embodiment of the application provides a volute structure, the volute structure is formed with the wind channel, the height in wind channel increases along the air current direction gradually.

In certain embodiments, the volute structure includes a first shell formed with a first groove and a second shell formed with a second groove, the first and second shells cooperating such that the first and second grooves form the wind tunnel.

In certain embodiments, the depth of the first grooves is constant along the direction of the gas flow, and the depth of the second grooves increases gradually along the direction of the gas flow.

In some embodiments, the first casing includes a first volute tongue and the second casing includes a second volute tongue, the first and second volute tongues being the same size.

In some embodiments, one of the first and second housings comprises a latch, the other of the first and second housings comprises a catch, and the first and second housings are connected by a snap-fit.

In certain embodiments, one of the first and second shells is formed with a wind wheel mount that is located within the volute structure.

In certain embodiments, the radial dimension of the air channel increases gradually along the direction of the air flow.

The application also provides a volute fan. The volute fan comprises the volute structure of any one of the above embodiments and a wind wheel mounted within the volute structure.

In some embodiments, the wind wheel comprises a plurality of wind guide blades and a first plate and a second plate which are opposite to each other, the wind guide blades are connected with the first plate and the second plate, and the plurality of wind guide blades are uniformly distributed along the circumferential direction of the wind wheel.

The application also provides a cleaning robot. The cleaning robot includes the volute blower of any one of the above embodiments.

The utility model provides a spiral case structure, spiral case fan and cleaning machines people form there is the wind channel, and the height in wind channel increases along the air current direction gradually, can guarantee that the air-out mode of spiral case structure accords with the diffusion condition of aerodynamics, under the condition that the electric power of the spiral case fan that has spiral case structure is the same, can effectively improve this spiral case fan's efficiency.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a volute structure according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a volute structure according to an embodiment of the present application;

FIG. 3 is a schematic perspective disassembled view of the volute structure of the present embodiment;

FIG. 4 is a schematic perspective disassembled view of a volute fan according to an embodiment of the present disclosure;

fig. 5 is a schematic structural view of a cleaning robot according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the embodiments of the present application, and are not to be construed as limiting the embodiments of the present application.

Referring to fig. 1, 2 and 3, a volute structure 100 is provided. The volute structure 100 is formed with an air duct 110, and the height h of the air duct 110 gradually increases along the airflow direction. The airflow direction P1 is the direction shown in fig. 1. That is, the inner space of the volute structure 100 of the present application becomes gradually larger along the airflow direction P1.

The height h of the air duct 110 gradually increases along the airflow direction, and may be increased from h1 to h2, where h2 is greater than h 1. Specifically, for example, if h1 is 20cm, then h2 may be 40 cm; if h1 is 10cm, then h2 may be 30 cm.

The volute structure 100 is provided with the air channel, the height h of the air channel is gradually increased along the airflow direction, the air outlet mode of the volute structure 100 can be guaranteed to meet the diffusion condition of aerodynamics, and the efficiency of the volute fan can be effectively improved under the condition that the electric power of the volute fan with the volute structure 100 is the same.

Referring to fig. 1, the radial dimension d of the air duct 110 gradually increases along the airflow direction P1, and the radial dimension d gradually increases as shown in fig. 3, for example, the radial dimension d may increase from d1 to d2, wherein d2 is greater than d 1. Specifically, for example, if d1 is 20cm, then d2 may be 30 cm; if d1 is 10cm, then d2 may be 18 cm.

It should be noted that the incremental value between d1 and d2 can be determined according to the desired airflow rate of the volute structure 100, and if the airflow rate needs to be fast, a larger incremental value can be set. If the air flow rate needs to be slow, a smaller increase can be set. The greater the increase between d1 and d2, the faster the airflow velocity is indicated, and the higher the efficiency of the volute fan with the volute structure. That is, the air duct 110 of the volute structure 100 of the present application is an archimedes spiral air duct structure.

In addition, the direction of the height h of the air duct 110 is perpendicular to the direction of the radial direction d of the air duct 110. That is, the volute structure 100 of the present application is aerodynamically designed to be a horizontally gradually enlarged air duct structure in the horizontal radial direction d of the air duct 110, and is also aerodynamically designed to be a vertically gradually enlarged air duct structure in the vertical height h direction of the air duct 110.

Understandably, the volute structure 100 of the present application adopts a bidirectional gradual change diffusion structure, which can ensure that the air outlet conforms to the diffusion condition of aerodynamics, and can effectively improve the efficiency of the volute motor under the condition of the same power of the volute motor.

Referring to fig. 2 and 3, the scroll structure 100 includes a first casing 120 and a second casing 130, the first casing 120 is formed with a first groove 121, the second casing 130 is formed with a second groove 131, and the first casing 120 and the second casing 130 cooperate such that the first groove 121 and the second groove 131 form the air duct 110. That is, the volute structure 100 of this application can be split into two half shells, and two half shells can carry out fixed connection through the mode of buckle connection, can form wind channel 131 after first shell 120 and the second shell 130 fixed connection, simple structure, easy to assemble and dismantlement. The connection manner of the first shell 120 and the second shell 130 may also be other connection manners such as a threaded connection, which is not limited herein.

Referring to fig. 3, the depth a of the first groove 121 is constant along the airflow direction, and the depth b of the second groove 131 gradually increases along the airflow direction. That is, the depth of one of the shells in the volute structure 100 is constant and the depth of the other shell is gradually varied along the direction of airflow. Therefore, the air outlet mode of the volute structure 100 can be ensured to meet the diffusion condition of aerodynamics, and the efficiency of the volute fan with the volute structure 100 can be effectively improved under the condition that the electric power of the volute fan is the same.

The first casing 120 includes a first volute tongue 122, the second casing 130 includes a second volute tongue 132, and the first volute tongue 122 and the second volute tongue 132 are the same size. That is to say, the sizes of the volute tongues corresponding to the first casing 120 and the second casing 120 are equal, which is beneficial to manufacturing and installing the first casing 120 and the second casing 130, and is convenient for installing and disassembling the first casing 120 and the second casing 130, and the whole volute structure 100 is simple and fast to manufacture.

The first case 120 or the second case 130 may be made of reinforced concrete or metal to achieve an effect of corrosion prevention.

One of the first and

second housings

120 and 130 includes the latch 140, the other of the first and

second housings

120 and 130 includes the latch groove 150, and the first and

second housings

120 and 130 are connected by a snap-fit, as shown in fig. 2.

Specifically, if the first housing 120 includes the latch 140, the second housing 130 includes the latch slot 150. If the first housing 120 includes the card slot 150, the second housing 130 includes the card block 140. In this way, the card slot 150 may be disposed on the first shell 120 or the second shell 130, or the fixture block 140 may be disposed on the first shell 120 or the second shell 130, so that the connection manner between the first shell 120 and the second shell 130 is flexible. In addition, the first shell 120 and the second shell 130 are connected by a snap connection, so that the first shell 120 and the second shell 130 are connected stably and are convenient to detach. In fig. 3 of the present application, a locking groove 150 is disposed on the first shell 120, and a locking block 140 is disposed on the second shell 130.

The block 140 may be a block made of metal or a mixed composite material, and correspondingly, the slot 150 may also be a groove surrounded by metal or a mixed composite material. The engaging groove 150 can cooperate with the engaging block 140 to form a snap-fit connection. The connection method of the first shell 120 and the second shell 130 in the present application is not limited to the snap connection method, and may be a screw connection method or other connection methods, which is not limited herein.

In addition, a flange 160 may be further disposed at the air inlet of one of the first shell 120 or the second shell 130, and the flange is smooth, so that wind resistance may be reduced, and a noise reduction effect may be achieved. The width of the flange 160 may be equal to the air inlet of the wind wheel, so that the air flow can flow into the wind wheel directly from the flange 160, thereby reducing the wind resistance and further reducing the noise. The thickness dimension of the flange 160 may be, without limitation, 1.3cm, 1.5cm, 1.9cm, 2cm, 2.5cm, 2.8cm, 2.9cm, 3cm, 3.8cm, or 4 cm.

One of the first and

second shells

120, 130 is formed with a wind wheel mount 170, the wind wheel mount 170 being located within the volute structure 100. That is, either one of the first case 120 or the second case 130 may be mounted and formed with the wind wheel mount 170, the wind wheel mount 170 may be integrally formed with the first case 120, and the wind wheel mount 170 may be integrally formed with the second case 130. The wind turbine mount 170 is formed to mount the wind turbine within the volute structure 100.

When the wind wheel mounting seat 170 is formed on the first shell 120, the wind wheel can be mounted on the first shell 120 first, and then the first shell 120 and the second shell 130 are mounted together to form the volute structure 100, which is convenient to mount.

Similarly, when the wind wheel mounting base 170 is formed on the second shell 130 (as shown in fig. 3), the wind wheel can be mounted on the second shell 130 first, and then the first shell 120 and the second shell 130 are mounted together to form the volute structure 100, which is convenient to mount.

The wind wheel mounting base 170 is provided with a plurality of circular holes, and can be fixedly connected with the wind wheel through the circular holes, so that the wind wheel can be fixedly mounted on the first shell 120 or the second shell 130, and the wind wheel is not easy to loosen. The circular holes may be screw holes, for example, through which the wind wheel mounting base 170 is engaged with screws on the wind wheel to fix the wind wheel.

The wind wheel mounting base 170 is circular. The annular size of the rotor mount 170 may be the same as the annular size of the rotor, facilitating the manufacture and installation of the rotor and rotor mount 170. The annular size of the rotor mounting base 170 is also larger than that of the rotor, so that the mounting and dismounting between the rotor and the rotor mounting base 170 are facilitated.

Referring to fig. 4, the present application further provides a volute fan 200. The volute fan 200 comprises the volute structure 100 and the wind wheel 210 in any of the above embodiments, and the wind wheel 210 is installed in the volute structure 100. The wind wheel 210 has a circular ring shape.

The wind wheel 210 comprises a plurality of wind guide blades 211 and a first plate 212 and a second plate 213 which are opposite to each other, the wind guide blades 211 are connected with the first plate 212 and the second plate 213, and the plurality of wind guide blades 211 are uniformly distributed along the circumferential direction of the wind wheel 210. The air guide blade 211 is positioned between the first plate 212 and the second plate 213. The first plate 212 and the second plate 213 are annular, and the first plate 212 and the second plate 213 may be both metal plates, or may be plates made of a mixed metal plate or other materials, which is not limited herein. The air guide blade 211 may be made of a metal material, or may be made of other mixed type materials, which is not limited herein.

The volute structure 100 in the volute fan 200 is provided with the air channel, the height of the air channel is gradually increased along the air flow direction, the air outlet mode of the volute structure 100 can be guaranteed to meet the diffusion condition of aerodynamics, and the efficiency of the volute fan 200 with the volute structure 100 can be effectively improved under the condition of the same motor power.

Referring to fig. 5, the present application further provides a cleaning robot 300. The cleaning robot 300 includes the volute blower 200 described previously. The cleaning robot 300 of the present application includes an intelligent cleaning type robot such as a sweeping robot.

The volute structure 100 of the volute fan 200 in the cleaning robot 300 is provided with the air duct, the height of the air duct is gradually increased along the air flow direction, the air outlet mode of the volute structure 100 can be guaranteed to meet the diffusion condition of aerodynamics, and the cleaning efficiency of the cleaning robot 300 can be effectively improved under the condition of the same motor power.

In the description herein, reference to the description of the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature described. In the description of the present application, "a plurality" means at least two, e.g., two, three, unless specifically limited otherwise.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art within the scope of the present application, which is defined by the claims and their equivalents.

Claims

1. The volute structure is characterized in that an air duct is formed in the volute structure, and the height of the air duct is gradually increased along the airflow direction;

the volute structure includes a first shell formed with a first groove and a second shell formed with a second groove, the first and second shells cooperating such that the first and second grooves form the air duct.

2. The volute structure of claim 1, wherein the depth of the first groove remains constant along the direction of airflow and the depth of the second groove increases gradually along the direction of airflow.

3. The volute structure of claim 1, wherein the first casing includes a first volute tongue and the second casing includes a second volute tongue, the first volute tongue and the second volute tongue being the same size.

4. The volute structure of claim 1, wherein one of the first and second shells comprises a latch and the other of the first and second shells comprises a catch, the first and second shells being connected by a snap-fit.

5. The volute structure of claim 1, wherein one of the first and second shells forms a wind wheel mount that is located within the volute structure.

6. The volute structure of claim 1, wherein the radial dimension of the air channel increases in a direction of the airflow.

7. A volute fan, comprising:

the volute structure of any of claims 1 to 6; and

a wind wheel mounted within the volute structure.

8. The volute blower of claim 7, the wind wheel comprising a plurality of wind directing blades and opposing first and second plates, the wind directing blades connecting the first and second plates, the plurality of wind directing blades being evenly distributed along a circumference of the wind wheel.

9. A cleaning robot, characterized in that the cleaning robot comprises the volute blower of claim 7 or claim 8.