CN211903083U - Fan assembly and air conditioner indoor unit - Google Patents

Abstract

The utility model discloses a fan assembly and air conditioner indoor unit, fan assembly include the shell and be located the first through-flow impeller and the second through-flow impeller of shell, and the through-hole has been injectd to the shell, a serial communication port, fan assembly is still including setting up the grid on the shell, and this grid includes the first grid part of giving vent to anger, the second gives vent to anger grid part and the first non-grid part of giving vent to anger, and the first non-grid part of giving vent to anger is joined with the first upper portion of giving vent to anger grid part and the upper portion of the second grid part of giving vent to anger respectively. The utility model discloses a fan assembly can provide the air current that the amount of wind is big, the noise is low to have the characteristics that whole outward appearance is good, easily production.

Description

Fan assembly and air conditioner indoor unit

Technical Field

The utility model relates to an air conditioning technology field, more specifically say, relate to a fan assembly and air conditioner indoor unit.

Background

Chinese patent application No. CN104165134A (application No. 201310186724.5) on patent publication No. CN104165134A on 11/26/2014 discloses an air conditioning device including: a base and a nozzle mounted on the base, the base comprising an outer housing having a side wall, an impeller shroud having an air inlet and an air outlet within the outer housing, an impeller having an air inlet and an air outlet within the impeller shroud, and a motor driving the impeller to rotate about an axis, the side wall comprising at least one air inlet, the nozzle comprising an internal passage for receiving an air flow from the base and a mouth through which the air flow is emitted. The air conditioning device with the structure has the advantages that the output air quantity is small, the working noise is large, and the whole appearance cannot meet the requirements of people.

Disclosure of Invention

The utility model aims to provide a fan assembly and air conditioner indoor unit that the noise is low, the amount of wind is big and whole outward appearance is better to overcome above-mentioned shortcoming.

In order to achieve the above object, a first aspect of the present invention provides a fan assembly comprising a housing having a plurality of air inlets, and a first through-flow impeller and a second through-flow impeller located in the housing, the housing defining a through-hole, the first through-flow impeller and the second through-flow impeller being located on left and right sides of the through-hole, respectively, characterized in that the fan assembly further comprises a grill provided on the housing at least partially surrounding the through-hole, bars between any two adjacent grill units of the grill being arranged in a longitudinal or transverse direction, the grill including a first air outlet grill portion having a plurality of air outlets, a second air outlet grill portion having a plurality of air outlets, and a first non-air outlet grill portion having a plurality of dimples, the first air outlet grill portion and the second air outlet grill portion being located on left and right sides of the through-hole, respectively, the first air outlet grid part is used for outputting airflow formed by the first through-flow impeller, the second air outlet grid part is used for outputting airflow formed by the second through-flow impeller, the first non-air outlet grid part is respectively jointed with the upper part of the first air outlet grid part and the upper part of the second air outlet grid part, and air from the outside of the fan assembly can be sucked through the through holes by the airflow emitted from the air outlet.

Preferably, the grill further includes a second non-air outlet grill portion having a plurality of depressions, the second non-air outlet grill portion being respectively coupled to a lower portion of the first air outlet grill portion and a lower portion of the second air outlet grill portion, the grill surrounding the through hole by one turn.

A conventional grid is generally composed of a frame and bars arranged in different directions in the frame to form intersections. The air outlet grille for outputting the air flow is a grille formed by criss-cross bars and frames, wherein each grid unit is provided with a through hole, the through holes can allow the air flow to pass through, and the through holes are called air outlets; the first air outlet grid part refers to a part of grids with through holes in each grid unit in the grids; the second air outlet grid part refers to another part of grid with through holes in each grid unit in the grid.

The non-air-outlet grille which cannot be used for outputting air flow refers to a grille with pits in each grid unit formed by criss-cross grid bars, a bottom plate and a frame; because the bottom plate covers the bottom surface of the air outlet grid unit, the non-air outlet grid unit forms a pit; the first non-air outlet grill part is a part of the grill in which each grill unit has the pits; the second non-air outlet grill section described herein refers to another part of the grill in which each grill cell has a pit.

The first and second non-air outlet grill parts serve to enhance the aesthetic appearance of the fan assembly, reduce the weight of the housing, and prevent the air flow from being discharged from certain areas that should not be discharged, thereby preventing the distribution of the discharged air flow and the discharge efficiency of the air flow from being affected.

Preferably, the rim of the grille is integral with the housing, i.e. the rim of the grille is integral with the housing.

Preferably, the first and second cross flow impellers are arranged longitudinally. When the first through-flow impeller and the second through-flow impeller are arranged longitudinally, the rotating shaft of the first through-flow impeller and the rotating shaft of the second through-flow impeller are longitudinally arranged.

Typically, the first non-air outlet grill portion is at least partially located on an upper side of the through-hole. Preferably, the first non air outlet grill portion is entirely located on the upper side of the through-hole.

Typically, the second non-air-vent-grid section is at least partially located on the underside of the via. Preferably, the second non-air outlet grill portion is entirely located at a lower side of the through hole.

Preferably, the grill further includes a second non-air outlet grill portion having a plurality of depressions, the second non-air outlet grill portion being coupled to a lower portion of the first air outlet grill portion and a lower portion of the second air outlet grill portion, respectively, and the second non-air outlet grill portion being at least partially located at a lower side of the through hole.

In a preferred embodiment, the grid comprises a first air outlet grid part with a plurality of air outlets, a second air outlet grid part with a plurality of air outlets, a first non-air outlet grid part with a plurality of pits and a second non-air outlet grid part with a plurality of pits, wherein the whole grid surrounds the through hole for one circle.

Preferably, each of the grid cells of the grid has a height in a longitudinal direction thereof greater than a width in a transverse direction thereof; more preferably, each of the grid cells of the grid has a height in a longitudinal direction thereof greater than 3 times a width in a transverse direction thereof.

Typically, the distance between two adjacent longitudinally arranged bars of the grid is between 3 mm and 10 mm, more preferably between 3 mm and 8 mm.

Preferably, the distance between any two adjacent grid bars arranged longitudinally of the grid is smaller than the distance between any two adjacent grid bars arranged transversely of the grid.

Preferably, the plurality of air outlets of the first air outlet grid part and the plurality of air outlets of the second air outlet grid part are arranged in a mode of taking the longitudinal direction as a column and taking the transverse direction as a row, the number of columns of the air outlets formed by the plurality of air outlets of the first air outlet grid part is not less than 2 columns, and the number of columns of the air outlets formed by the plurality of air outlets of the second air outlet grid part is not less than 2 columns; more preferably, the number of rows of air outlets formed by the plurality of air outlets of the first air outlet grid part is not less than 3, and the number of rows of air outlets formed by the plurality of air outlets of the second air outlet grid part is not less than 3.

Preferably, the plurality of pits of the first non-air outlet grid part and the plurality of pits of the second non-air outlet grid part are arranged in a mode of taking the longitudinal direction as a column and taking the transverse direction as a row, the number of columns of pits formed by the plurality of pits of the first air outlet grid part is not less than 2 columns, and the number of columns of pits formed by the plurality of pits of the second air outlet grid part is not less than 2 columns; more preferably, the number of rows of pits formed by the plurality of pits of the first air outlet grid part is not less than 3, and the number of rows of pits formed by the plurality of pits of the second air outlet grid part is not less than 3.

Preferably, the plurality of pits of the first non-air-outlet grid part are arranged in a mode of taking the longitudinal direction as a column and taking the transverse direction as a row, and the number of rows of pits formed by the plurality of pits of the first non-air-outlet grid part is 1 row.

In general, the shapes of the respective grid cells of the first non-air outlet grid section are the same, and a small number of grid cells may be different.

Preferably, the first non-air outlet grid section comprises at least two grid cells of mutually different shapes.

Typically, the height of the through-hole in its longitudinal direction is greater than the width of the through-hole in its transverse direction. Preferably, the height of the through-hole in the longitudinal direction thereof is 5 times or more the width of the through-hole in the lateral direction thereof; more preferably, the height of the through-hole in the longitudinal direction thereof is 8 times or more the width of the through-hole in the lateral direction thereof.

Preferably, the grille is removable, i.e. detachable from the housing. Therefore, the grating is convenient to clean and the integral manufacture of the grating is also convenient.

Preferably, the width of the through hole is between 10 mm and 300 mm; more preferably, the width of the through hole is between 15 mm and 100 mm.

Preferably, the height of the through hole is between 150 mm and 15000 mm; more preferably, the height of the through-hole is between 200 mm and 1000 mm.

Typically, the through-holes include rectangular through-holes, rounded rectangular through-holes, and partially circular through-holes.

Preferably, the shape of the cross section of the through-hole includes a combination of a rectangular shape and a semicircular shape. For example, the shape of the cross section of the through-hole is a combination of a rectangle and a semicircle located at one end in the length direction of the rectangle, wherein the width of the rectangle is equal to the diameter of the semicircle. For another example, the shape of the cross section of the through-hole is a combination of a rectangle and two semicircles at both ends in the length direction of the rectangle, wherein the width of the rectangle is equal to the diameter of the two semicircles.

The air outlet typically comprises a rectangular air outlet. The width of the rectangular outlet opening is typically between 3 mm and 12 mm, preferably between 4 mm and 10 mm. The length of the rectangular air outlet is generally between 20 mm and 80 mm, preferably between 30 mm and 60 mm. The depth of the rectangular outlet opening is typically between 3 mm and 20 mm, preferably between 4 mm and 10 mm.

Preferably, the first outlet grill section has both rectangular outlet ports and non-rectangular outlet ports at the edge portions of the grill; the second outlet grill section has both rectangular outlet ports and non-rectangular outlet ports at the edge portions of the grill.

The dimples generally comprise rectangular shaped dimples. The width of the rectangular recess is generally between 3 mm and 12 mm, preferably between 4 mm and 10 mm. The length of the rectangular recess is generally between 20 mm and 80 mm, preferably between 30 mm and 60 mm. The depth of the rectangular recess is generally between 3 mm and 20 mm, preferably between 4 mm and 8 mm.

Preferably, the first non-air outlet grill portion has both rectangular-shaped depressions and non-rectangular-shaped depressions at the edge portions of the grill; the second non-air outlet grill portion has both rectangular depressions and non-rectangular depressions in the edge portion of the grill.

In a preferred embodiment, the through holes are partial circular through holes, and at least part of the grid cells of the first non-air outlet grid part are non-rectangular grid cells.

The bars of the grid are typically formed of plastic; the width of the bars is generally between 1 mm and 6 mm, preferably between 1 mm and 5 mm; the thickness of the bottom plate of the non-air outlet grill section is usually between 0.5 mm and 3 mm, preferably between 0.5 mm and 2 mm.

Preferably, the first cross flow impeller and the second cross flow impeller are arranged in parallel at a distance. The rotational speed of the first and second through-flow impellers is typically between 500rpm and 4000rpm, preferably between 1200rpm and 3000 rpm.

In order to enable the fan assembly to output a flow of hot air, heating means may be provided within the housing for heating the air flow.

In order to purify the air or to obtain clean air, a filter may also be provided in the housing for removing particles from the air flow.

A second aspect of the present invention provides an air conditioner, which includes the fan assembly described above.

The features described above in relation to the first aspect of the invention apply equally to the second aspect of the invention.

Compared with the prior art, the beneficial effects of the utility model are that: in the fan assembly or the air conditioner indoor unit, because the two cross-flow impellers are adopted to form airflow, the output air volume is large and the noise is low; particularly, the housing is provided with a grid adjacent to the through holes, the grid is provided with an air outlet grid part and a non-air outlet grid part, grid bars between any two adjacent grid units are arranged longitudinally or transversely, the grid with the structure can not only ensure the high-efficiency and stable output of airflow formed by two cross-flow impellers, but also remarkably improve the appearance effect of a fan assembly or an indoor unit of an air conditioner; the grille with the structure is easy to manufacture integrally, reduces the weight of the fan assembly and can also meet the use safety of people.

Drawings

Fig. 1 is a front schematic view of a fan assembly according to the present invention.

Fig. 2 is a side view of the fan assembly shown in fig. 1.

Fig. 3 is a cross-sectional view of the fan assembly taken along line a-a in fig. 1.

Fig. 4 is a sectional view of the fan assembly taken along line B-B in fig. 2.

Fig. 5 is a schematic front view of a fan assembly of a second embodiment.

Fig. 6 is a schematic front view of a fan assembly of a third embodiment.

Detailed Description

Fig. 1 is a schematic view of a fan assembly according to the present invention, viewed from the front of the fan assembly, fig. 2 is a side view of the fan assembly shown in fig. 1, fig. 3 is a sectional view of the fan assembly taken along line a-a in fig. 1, and fig. 4 is a sectional view of the fan assembly taken along line B-B in fig. 2. As can be seen from fig. 1 to 4, the fan assembly of the present invention includes a base 2 and a body 1 disposed on the base 2, wherein the body 1 includes a housing 3, a first driving motor 17, a second driving motor 18, a first cross flow impeller 11 and a second cross flow impeller 12 disposed in the housing 3.

In this embodiment, the first driving motor 17 and the second driving motor 18 are both dc brushless motors, and the first driving motor 17 and the second driving motor 18 respectively drive the first crossflow impeller 11 and the second crossflow impeller 12 to rotate.

As best seen in fig. 1 to 3, the casing 3 of the body 1 includes a front portion and a rear portion, a plurality of air inlets 10 are provided on the rear portion of the casing 3, a grill 4 surrounding a through hole 9 is provided on the front portion of the casing 3, the casing 3 defines the through hole 9 in the middle, a first cross flow impeller 11 and a second cross flow impeller 12 are respectively provided on the left side and the right side of the through hole 9, and the positive direction of the axis X is the air outlet direction of the fan assembly. The housing 3 of the present embodiment is formed of plastic.

In this embodiment, the grill 4 is composed of a first air outlet grill portion 5, a second air outlet grill portion 6, a first non-air outlet grill portion 7, and a second non-air outlet grill portion 8, the first air outlet grill portion 5 and the second air outlet grill portion 6 are respectively located on the left side and the right side of the through hole 9, the first non-air outlet grill portion 7 and the second non-air outlet grill portion 8 are respectively located on the upper side and the lower side of the through hole 9, the first non-air outlet grill portion 7 is respectively joined to the upper portion of the first air outlet grill portion 5 and the upper portion of the second air outlet grill portion 6, and the second non-air outlet grill portion 8 is respectively joined to the lower portion of the first air outlet grill portion 5 and the lower portion of the second air outlet grill portion 6.

As best seen in fig. 1, the frame of the grid 4 is integrated with the housing 3, the bars in the grid 4 are arranged longitudinally or transversely, wherein the bars 52 and 72 are longitudinally arranged bars, and the bars 53 are transversely arranged bars; the first air outlet grid part 5 has 3 rows of grid cells, wherein each row has 9 grid cells, that is, the first air outlet grid part 5 has 27 grid cells, each grid cell of the first air outlet grid part 5 has rectangular air outlets 51 (or through holes), and the air outlets 51 are used for outputting the air flow formed by the first through-flow impeller 11; the second air outlet grill section 6 is the same as the first air outlet grill section 5, and has 27 grill units in total, and has 27 rectangular air outlets for outputting the air flow formed by the second cross-flow impeller 12.

As can also be clearly seen in fig. 1, the first non-air-outlet grid section 7 has 4 grid cells, each of which has only 1 grid cell, i.e. the first non-air-outlet grid section 7 has 4 grid cells, each grid cell of the first non-air-outlet grid section 7 has a rectangular pit 71, and the first non-air-outlet grid section 7 of the present embodiment is formed by a partial frame, a grid bar and a bottom plate (not shown in the figure), so that each grid cell forms a pit 71; the second non-air-outlet gate section 8 is also the same as the first non-air-outlet gate section 7, and has 4 grid cells with 4 pits. The first and second non-air- grill parts 7 and 8 serve to decorate, reduce the weight of the fan assembly, and restrict the flow of air formed by the first and second through- flow impellers 11 and 12 to flow out in this area.

In the present embodiment, each of the grid cells of the grill 4 has a height in the longitudinal direction thereof larger than a width in the transverse direction thereof, each of the grid cells has a rectangular shape, and the grill 4 has rectangular air outlets and rectangular recesses.

As can be easily seen from fig. 1 to 4, the housing 3 is provided with the grill 4 which is formed by the first air outlet grill portion 5, the second air outlet grill portion 6, the first non-air outlet grill portion 7 and the second non-air outlet grill portion 8 and surrounds the through hole 9 by one circle, and the grilles between any two adjacent grill units of the grill 4 are arranged longitudinally or transversely, so that the grill 4 formed by the grilles arranged in this way not only can ensure the efficient and stable output of the airflow formed by the two cross flow impellers, but also can show an unintended visual effect, can remarkably improve the aesthetic appearance of the fan assembly, is also beneficial to reducing the quality of the whole housing, and can prevent a user from touching the rotating first cross flow impeller 11 and the second cross flow impeller 12, so as to satisfy the use safety of people.

As is clear from fig. 3 and 4, a first volute 15, a second volute 16, a first volute tongue 13 and a second volute tongue 14 are fixed on the inner wall of the housing 3; the first cross flow impeller 11 is located on the left side of the through hole 9, and the second cross flow impeller 12 is located on the right side of the through hole 9. The first volute 15, the second volute 16, the first volute tongue 13 and the second volute tongue 14 of the present embodiment are all formed of plastic.

As can also be seen from fig. 3 and 4, on the inner wall of the casing 3 there are fixed a first lower seat 27, a second lower seat 28, a first upper seat 29 and a second upper seat 30; the first driving motor 17 is arranged in the first lower base 27, and the second driving motor 18 is arranged in the second lower base 28; the first driving motor 17 is connected with the first through-flow impeller 11 through a driving shaft 19, and the second driving motor 18 is connected with the second through-flow impeller 12 through a driving shaft 20; the upper end of the first crossflow impeller 11 has a first upper rotating shaft 21, the upper end of the second crossflow impeller 12 has a second upper rotating shaft 22, the first upper rotating shaft 21 is supported by a first bearing 23 disposed in a first upper base 29, and the second upper rotating shaft 22 is supported by a second bearing 24 disposed in a second upper base 30.

In the present embodiment, a cable through hole (not shown) is provided in the base 2, and a circuit device 25 is provided in the housing 3; the circuit device 25 is electrically connected to the first driving motor 17 and the second driving motor 18, respectively, to control the first driving motor 17 and the second driving motor 18 to drive the first cross flow impeller 11 and the second cross flow impeller 12 to rotate, respectively.

As can be easily seen from fig. 3 and 4, the rotation direction ω 1 of the first cross flow impeller 11 is opposite to the rotation direction ω 2 of the second cross flow impeller 12, air outside the fan assembly can be drawn through the through holes 9 by the air flows emitted from the plurality of air outlets 51 of the grill 4, and the air flows emitted from the plurality of air outlets 51 are substantially the same as the positive direction of the axis X.

Fig. 5 is a schematic front view of a fan assembly of a second embodiment. As is readily apparent from fig. 5, the fan assembly of this embodiment is very similar to that of the first embodiment except that the grill 4 provided on the casing 3 is different in structure. In the present embodiment, the grill 4 is formed of the first air outlet grill section 5, the second air outlet grill section 6, and the first non-air outlet grill section 7, and the number of grill cells of the first air outlet grill section 5 and the second air outlet grill section 6 is reduced without the second non-air outlet grill section 8 of the first embodiment. The fan assembly with the structure can also ensure the efficient and stable output of airflow formed by the two cross-flow impellers, obviously improves the attractiveness of the fan assembly, reduces the weight of the fan assembly, and meets the use safety of people.

Fig. 6 is a schematic front view of a fan assembly of a third embodiment. As is readily apparent from fig. 6, the fan assembly of this embodiment is also similar to that of the first embodiment except that the upper portion of the body 1 is different. In the present embodiment, the upper portion of the body 1 is semicircular as viewed from the front of the fan assembly, and the top of the through-hole 9 and the top portion of the grill 4 are both semicircular. In the grill 4 of the present embodiment, the first outlet grill section 5 has both the rectangular outlet port 51 and the non-rectangular outlet port 54, and the second outlet grill section 6 has both the rectangular outlet port and the non-rectangular outlet port, and the first non-outlet grill section 7 has both the rectangular recess 71 and the non-rectangular recess 73. The fan assembly with the structure can also ensure the efficient and stable output of the airflow formed by the two through-flow impellers, obviously improve the attractiveness of the fan assembly, reduce the weight and meet the use safety of people.

In the housing 3 of the fan assembly of the above three embodiments, a corresponding heat exchanger, for example, a fin-tube type indoor heat exchanger, may be added. The fan assembly with the heat exchanger can be used as an indoor unit of an air conditioner.

While there have been shown and described what are at present considered to be the preferred embodiments of the invention, it will be obvious to those skilled in the art that various changes and modifications can be made therein without departing from the scope of the invention as defined by the appended claims.

Claims (10)

1. A fan assembly comprising a housing having a plurality of air inlets and first and second impellers located in the housing, the housing defining a through-hole, the first and second impellers being located to the left and right of the through-hole respectively, the fan assembly further comprising a grille disposed in the housing at least partially surrounding the through-hole, the grille having bars longitudinally or transversely arranged between any two adjacent grille units, the grille comprising a first air outlet grille section having a plurality of air outlets, a second air outlet grille section having a plurality of air outlets and a first non-air outlet grille section having a plurality of dimples, the first air outlet grille section and the second air outlet grille section being located to the left and right of the through-hole respectively, the first air outlet grille section being for outputting an air flow generated by the first impeller, the second air outlet grid section is used for outputting the airflow formed by the second cross-flow impeller, the first non-air outlet grid section is respectively jointed with the upper part of the first air outlet grid section and the upper part of the second air outlet grid section, and the air from the outside of the fan assembly can be sucked through the through holes by the airflow emitted from the air outlet.

2. The fan assembly of claim 1 wherein said grill further comprises a second non-air outlet grill portion having a plurality of dimples, said second non-air outlet grill portion being joined to a lower portion of said first air outlet grill portion and a lower portion of said second air outlet grill portion, respectively, said grill surrounding said through hole by a circle.

3. The fan assembly of claim 1, wherein the grill further comprises a second non-air outlet grill portion having a plurality of depressions, the second non-air outlet grill portion being coupled to a lower portion of the first air outlet grill portion and a lower portion of the second air outlet grill portion, respectively, and wherein the first non-air outlet grill portion is at least partially positioned at an upper side of the through hole, the second non-air outlet grill portion is at least partially positioned at a lower side of the through hole, and the grill surrounds the through hole by one turn.

4. The fan assembly of claim 1, wherein each of the grill units of the grill has a height in a longitudinal direction thereof greater than a width in a lateral direction thereof.

5. The fan assembly of claim 1, wherein each of the grid cells of the grill has a height in a longitudinal direction thereof greater than 3 times a width in a lateral direction thereof.

6. The fan assembly of claim 1, wherein the plurality of air outlets of the first air outlet grid section and the plurality of air outlets of the second air outlet grid section are arranged in rows and columns in the longitudinal direction, the number of rows of air outlets formed by the plurality of air outlets of the first air outlet grid section is not less than 2, and the number of rows of air outlets formed by the plurality of air outlets of the second air outlet grid section is not less than 2.

7. The fan assembly of claim 1 wherein the plurality of dimples of the first non-air outlet grill portion are arranged in rows and columns in a longitudinal direction, and the number of rows of dimples formed by the plurality of dimples of the first non-air outlet grill portion is not less than 2 rows.

8. The fan assembly of claim 1 wherein the plurality of dimples of the first non-air outlet grill section are arranged in columns in a longitudinal direction and rows in a transverse direction, and wherein the number of rows of dimples formed by the plurality of dimples of the first non-air outlet grill section is 1 row.

9. The fan assembly of claim 1 wherein the through-holes are part-circular through-holes and at least some of the grid cells of the first non-air outlet grid section are non-rectangular grid cells.

10. An indoor unit for an air conditioner, comprising the fan assembly as claimed in any one of claims 1 to 9.

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