CN210292012U

CN210292012U - Dynamic filter screen, fan subassembly, lampblack absorber

Info

Publication number: CN210292012U
Application number: CN201921099093.2U
Authority: CN
Inventors: 陈天佑; 贺平; 汪春节; 许宁
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-04-10
Anticipated expiration: 2029-07-12

Abstract

The utility model provides a developments filter screen, fan subassembly, lampblack absorber, a developments filter screen includes: a middle shaft; the blades are arranged on the outer peripheral surface of the middle shaft in a surrounding mode, and are twisted outwards along the center of the dynamic filter screen; and the overflowing parts are uniformly distributed on the blades. The utility model provides a dynamic filter screen is similar to the shape of blade, and the wind pressure of lampblack absorber air inlet department can be enlarged in its axial fan cooperation with among the middle and upper fan subassembly of lampblack absorber, and the reinforcing is to the disturbance of oil flue gas stream to the activity degree that is in the oil smoke particle in the oil flue gas stream increases, changes and dynamic filter screen contact collision, catches by the dynamic filter screen, in order to realize the filter effect to the oil smoke better.

Description

Dynamic filter screen, fan subassembly, lampblack absorber

Technical Field

The utility model relates to the technical field of household appliances, concretely relates to dynamic filter screen, fan subassembly, lampblack absorber.

Background

Along with the development of society, the lampblack absorber has become the indispensable kitchen appliance in city life kitchen, however, the filter screen of lampblack absorber is mostly static filter screen, and its interception effect to the greasy dirt is relatively poor.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the interception efficiency of lampblack absorber filter screen to the greasy dirt is poor among the prior art to a dynamic filter screen, fan subassembly, lampblack absorber are provided.

In order to solve the above problem, the utility model provides a dynamic filter screen includes: a middle shaft; the blades are arranged on the outer peripheral surface of the middle shaft in a surrounding mode, and are twisted outwards along the center of the dynamic filter screen; and the overflowing parts are uniformly distributed on the blades.

Further, the number of the blades is configured to be an odd number.

Further, a plurality of the blades are arranged on the peripheral surface at equal intervals.

Further, the vanes gradually increase in size along the center of the dynamic screen toward the outer edge.

Further, the flow passing part is configured as a long hole extending and molded outwards along the center of the dynamic filter screen.

Furthermore, a mounting hole is formed in the middle shaft along the axis direction.

The utility model also provides a fan subassembly, include: the dynamic screen of any of the above; and the fan assembly is provided with the dynamic filter screen.

Further, the fan assembly includes: the motor is arranged in the volute; the centrifugal fan blade surrounds the motor, and the dynamic filter screen is arranged at the air inlet of the centrifugal fan blade.

Further, the mounting hole in the dynamic filter screen is arranged on a motor shaft of the motor.

The utility model provides a fan subassembly still includes the outer screen, sets up on the spiral case, the cover is in the top of dynamic filtration net.

The utility model also provides a lampblack absorber includes: the fan assembly of any preceding claim.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a dynamic filter screen includes: a middle shaft; the blades are arranged on the outer peripheral surface of the middle shaft in a surrounding mode, and are twisted outwards along the center of the dynamic filter screen; and the overflowing parts are uniformly distributed on the blades.

The utility model provides a dynamic filter screen is similar to the shape of flabellum, and the wind pressure of lampblack absorber air inlet department can be enlarged in its axial fan cooperation with among the middle and upper fan subassembly of lampblack absorber, and the reinforcing is to the disturbance of oil flue gas stream to the activity degree of the oil smoke particle in the oil flue gas stream increases, changes and dynamic filter screen contact collision, catches by the dynamic filter screen, in order to realize the filter effect to the oil smoke better.

2. The utility model discloses an among the dynamic filter screen the quantity of blade is constructed as odd number, when the blade number is the odd number, then can not reach the symmetry, can effectively reduce resonant problem. From the energy-saving perspective, three fans are more cost-saving and are also relatively energy-saving. Because three fans can form asymmetrical reasonable mechanical power, when one blade does not have power potential energy, the other two blades are in a potential energy state, and the two potential energy blades can naturally and easily drive one blade which temporarily does not have potential energy, so that the electric power and the energy can be saved.

3. The utility model discloses a plurality of in the dynamic filter screen the equidistant setting of blade is in on the outer peripheral face, the blade that equidistant was implemented is at the rotation in-process, and the atress equilibrium is better, can effectively increase the life of blade.

4. The utility model discloses an in the dynamic filter screen the blade is followed the outside size crescent along in center of dynamic filter screen. The greasy dirt of being dynamic filter screen interception is by the center of filter screen under the effect of centrifugal force move gradually the filter screen edge, can be in a large amount of gathers in the edge, if the edge area is less, leads to the greasy dirt to pile up, easily leads to the greasy dirt to drip, influences user experience, and great outer edge can accept more greasy dirt, improves the treatment effect to the greasy dirt.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a dynamic filter screen according to an embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a dynamic filter screen in example 1 provided by the present invention;

fig. 3 is a schematic structural diagram of a fan assembly according to embodiment 2 of the present invention.

Description of reference numerals:

1-medial axis; 11-mounting holes;

2-a blade;

3-an overflow part;

4-a fan assembly; 41-a motor; 42-a volute; 43-centrifugal fan blades; 431-a wind inlet;

5-outer net;

a-dynamic filter screen.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 1 to fig. 2, a dynamic filter screen provided for this embodiment includes: a middle shaft 1; the blades 2 are arranged on the peripheral surface of the middle shaft 1 in a surrounding mode, and the blades 2 are twisted outwards along the center of the dynamic filter screen; and the overflowing parts 3 are uniformly distributed on the blades 2.

The dynamic filter screen in the embodiment is used on a range hood in a household kitchen and used for filtering oil smoke generated in the cooking process.

The material of dynamic filter screen in this embodiment is stainless steel, if: SUS 303/SUS 304 and the like, oil smoke generated in the cooking process contains corrosive substances, and the stainless steel material has good corrosion resistance, so that the smoothness of the surface of the filter screen is ensured, and the good smoothness can ensure that oil stain filtered and remained on the filter screen is more quickly guided to the edge of the dynamic filter screen, thereby improving the treatment efficiency of the oil stain.

How the dynamic filter screen improves the filtration efficiency of the oil smoke in the embodiment is explained below:

the dynamic filter screen in this embodiment is similar to the shape of flabellum, and it can enlarge the wind pressure of lampblack absorber air inlet department with the axial fan cooperation in the last fan subassembly of lampblack absorber, strengthens the disturbance to oil flue gas stream to be in the mobility of the oil smoke particle in oil flue gas stream increases, changes and collides with the contact of dynamic filter screen, is caught by the dynamic filter screen, in order to realize the filter effect to the oil smoke better.

Further, the number of the blades 2 is configured to be an odd number, and the number of the blades 2 is five in the present embodiment. When the number of the blades is odd, symmetry cannot be achieved, and the problem of resonance can be effectively reduced. From the energy-saving perspective, three fans are more cost-saving and are also relatively energy-saving. Because three fans can form asymmetrical reasonable mechanical power, when one blade does not have power potential energy, the other two blades are in a potential energy state, and the two potential energy blades can naturally and easily drive one blade which temporarily does not have potential energy, so that the electric power and the energy can be saved.

Five are selected in the embodiment, and the air inlet of the oil press can be covered more comprehensively, so that a better filtering effect can be ensured.

Of course, in other embodiments, the number of the blades 2 may be three, seven, etc., which has the same technical effect as five. The processing of the three blades 2 is relatively simpler and the cost is low.

Five blades 2 in this embodiment are equidistantly arranged on the outer peripheral surface, wherein the root edge of each blade 2 is curved, and a single blade 2 is fixed on the central shaft 1 along the outer peripheral surface, so that the blades 2 implemented equidistantly have better stress balance in the rotating process, and the service life of the blades 2 can be effectively prolonged.

In order to ensure the reliability of the fixation between the blade 2 and the central shaft 1, a fillet is processed at the combination position of the root and the outer peripheral surface so as to avoid the problem of the root fracture of the blade 2 caused by stress concentration.

Further, the vanes 2 gradually increase in size from the center of the dynamic screen to the outer edge. The greasy dirt of being dynamic filter screen interception is by the center of filter screen under the effect of centrifugal force move gradually the filter screen edge, can be in a large amount of gathers in the edge, if the edge area is less, leads to the greasy dirt to pile up, easily leads to the greasy dirt to drip, influences user experience, and great outer edge can accept more greasy dirt, improves the treatment effect to the greasy dirt.

In order to achieve the discharge of the treated flue gas into the fan assembly, the flow passing part 3 is configured as a long hole extending and formed outwards along the center of the dynamic filter screen. As shown in fig. 2, in each individual blade 2, a plurality of the elongated holes extend from the root of the blade 2 and are distributed on the blade 2 approximately parallel to each other in the extending direction.

In other embodiments, the flow passage part 3 may be a circular mesh, a square mesh, a triangular mesh, etc. which are commonly used and are uniformly distributed on the blades 2.

In order to realize the installation of the dynamic filter screen on the fan assembly, a mounting hole 11 is processed on the middle shaft 1 along the axial direction, as shown in fig. 1, the mounting hole 11 is a D-shaped hole, and is convenient to be matched with a motor shaft.

Example 2

As shown in fig. 3, the present embodiment provides a fan assembly including the dynamic filter a of embodiment 1; and fan assembly 4, dynamic filter screen a installs on fan assembly 4, and fan assembly has above-mentioned all technical advantage of dynamic filter screen a in this embodiment, and the repeated description is omitted here.

It is further noted that the fan assembly 4 includes: the motor 41 is installed in the volute 42, the volute 42 is a common housing structure of the fan assembly 4, and a mounting hole for cooperating with the motor 41 is processed on the volute 42 to fix the motor 41, and further, the motor 41 is installed at the center of the volute 42; the centrifugal fan 43 is arranged on the volute 42 around the motor 41, and the dynamic filter screen A is arranged at the air inlet 431 of the centrifugal fan 43. The fan assembly 4 generates wind suction force to suck oil smoke generated by cooking into the fan assembly 4 under the action of the centrifugal fan blades 43, and the oil smoke enters the flue after being filtered by the dynamic filter screen A.

Further, the mounting hole 11 in the dynamic filter screen a is arranged on the motor shaft of the motor 41, the mounting hole 11 in this embodiment is a D-shaped hole, the motor shaft is a D-shaped shaft, and the two are mounted in a matching manner, so that the mounting structure is simple and easy to operate.

This embodiment still includes extranet 5, sets up on spiral case 42, covers in dynamic filter screen A's top, specifically, corresponding position processing has the mounting hole that suits with extranet 5 on the spiral case 42, extranet 5 through the screw lock pay on the mounting hole on spiral case 42, extranet 5 is circular form, for the mesh structure of equipartition on it, extranet 5 can carry out preliminary filtration to the oil smoke that the culinary art produced, can prevent that there is great foreign matter to be drawn into dynamic filter screen A in, causes its jam or influences normal rotation.

Example 3

This embodiment provides a lampblack absorber, including in embodiment 2 arbitrary fan subassembly, and have its whole technical advantage, no longer give unnecessary details here.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A dynamic screen, comprising:

a middle shaft (1);

the blades (2) are arranged on the outer peripheral surface of the middle shaft (1) in a surrounding mode, and the blades (2) are twisted outwards along the center of the dynamic filter screen;

and the overflowing parts (3) are uniformly distributed on the blades (2).

2. The dynamic screen according to claim 1, characterized in that the number of vanes (2) is configured as an odd number.

3. The dynamic screen according to claim 2, characterized in that a plurality of said blades (2) are arranged at equal intervals on said peripheral surface.

4. The dynamic screen of claim 2, wherein the vanes (2) progressively increase in size along the center of the dynamic screen to the outer edges.

5. The dynamic screen according to any one of claims 1 to 4, characterised in that the flow-through section (3) is configured as an elongated hole extending outwardly along the centre of the dynamic screen.

6. The dynamic screen according to any of claims 1 to 4, characterised in that the centre shaft (1) is provided with mounting holes (11) in the axial direction.

7. A fan assembly, comprising:

the dynamic screen of any one of claims 1-6;

and a fan assembly (4), the dynamic filter screen being disposed on the fan assembly (4).

8. The fan assembly according to claim 7, characterized in that the fan assembly (4) comprises:

a motor (41) disposed within the volute (42);

the centrifugal fan blade (43) is arranged around the motor (41), and the dynamic filter screen is arranged at an air inlet (431) of the centrifugal fan blade (43).

9. The fan assembly of claim 8 wherein the mounting holes (11) in the dynamic screen are provided on a motor shaft of the motor (41).

10. The fan assembly of claim 9 further comprising an outer screen (5) disposed on the volute (42) overlying the dynamic screen.

11. A range hood, comprising:

the fan assembly of any of claims 7-10.