WO2017041700A1

WO2017041700A1 - Volute fan assembly structure and floor-standing air conditioner

Info

Publication number: WO2017041700A1
Application number: PCT/CN2016/098213
Authority: WO
Inventors: 姚俊华; 张永亮; 潘龙腾; 吴舸; 李德清; 金海元; 丘晓宏; 孟宪运; 王朝新; 张永成; 曾庆和; 温骊; 陈圣文; 杨杰; 臧允舒; 林裕亮
Original assignee: 珠海格力电器股份有限公司
Priority date: 2015-09-11
Filing date: 2016-09-06
Publication date: 2017-03-16
Also published as: EP3348841A1; EP3348841A4; EP3348841B1; CN105156345A; CN105156345B

Abstract

A volute fan assembly structure comprises an installation plate (4) and at least two adjacent volute fans installed on the installation plate (4). One of the two adjacent volute fans has a middle air outlet located between the two adjacent volute fans. The volute fan having the middle air outlet is located in a more forward position than the other volute fan in a front-and-rear direction vertical to the installation plate. The volute fan assembly structure can stagger an air outlet of a second volute fan (2) from a first volute fan (1) and a third volute fan (3) to reduce interference. Also provided is a floor-standing air conditioner having the volute fan assembly structure.

Description

Spiral shell fan combined structure and vertical air conditioner

This application claims priority to Chinese Patent Application No. 201510579470.2, entitled "A volute fan combination structure and vertical air conditioner" on September 11, 2015, the entire contents of which are hereby incorporated by reference. Combined in this application.

Technical field

The invention relates to the field of air blowing mechanisms, in particular to a volute fan combined structure and a vertical air conditioner.

Background technique

At present, air conditioning equipment on the market, when there is a need for two-way air supply, sometimes two volute fans are provided to supply air in opposite directions. However, due to the power and volume limitations of the volute fan, when it is applied to a relatively large air conditioning device, such as a vertical air conditioner, there is a problem that the air volume is insufficient. If the power of the volute fan is increased, the volume of the volute fan will also increase, and the overall volume of the vertical air conditioner needs to be increased, especially the width and/or thickness of the vertical air conditioner is increased, and the vertical air conditioner is increased. The horizontal occupied space is unfavorable for the installation, use and transportation of the vertical air conditioner.

Summary of the invention

In view of the above, the present invention provides a volute fan combination structure capable of reducing the outflow of a volute fan by an adjacent volute fan in a blower having a multi-volute fan.

To this end, the present invention employs the following technical solutions:

A volute fan combination structure includes a mounting plate and at least two adjacent volute fans mounted on the mounting plate, and one of the two adjacent volute fans has the adjacent volute fan The intermediate air outlet between the two volute fans, the volute fan having the intermediate air outlet is located forward in the front-rear direction perpendicular to the mounting plate compared to the other volute fan.

Preferably, in the foregoing volute fan combination structure, three volute fans are included, and the three volute fans include a third volute fan, a second volute fan and a first volute arranged in order from bottom to top. a second volute fan having a second volute fan air outlet facing upward and/or downward, the second volute fan being compared to the first volute fan and the third volute fan The front and rear direction is located forward.

Preferably, in the foregoing volute fan combination structure, the first volute fan has a first volute fan air outlet that faces outward; the third volute fan has a third volute that is ventilated downward. The second volute fan has a first air outlet of the second volute fan that is ventilated upward and a second air outlet of the second volute fan that is ventilated downward.

Preferably, in the foregoing volute fan combination structure, the mounting plate is provided with a first fan mounting portion and a second fan respectively corresponding to the first volute fan, the second volute fan and the third volute fan. The mounting portion and the third fan mounting portion, wherein the second fan mounting portion is disposed to protrude toward the front of the mounting plate with respect to the first fan mounting portion and the third fan mounting portion.

Preferably, in the foregoing volute fan combination structure, the inner surface of the rear wall of the air outlet of the second volute fan is planar, and the extended surface of the plane is opposite to the air outlet of the second volute fan The volute of a volute fan and/or a third volute fan does not intersect.

Preferably, in the foregoing volute fan combination structure, the second volute fan air outlet extends obliquely in a direction away from the volute of the second volute fan in a direction from the rear to the front.

Preferably, in the foregoing volute fan combination structure, the second volute fan has a first ventilating fan of the second volute fan that is ventilating upward and a second ventilating fan of the second volute fan that is ventilating downward. The inner surface of the rear wall of the first air outlet of the second volute fan is inclined or curved, and the extended surface of the inclined surface or the curved surface of the curved surface does not intersect with the volute of the first volute fan; The inner surface of the rear wall of the second air outlet of the two volute fan is inclined or curved, and the extended surface of the inclined surface or the curved surface of the curved surface does not intersect with the volute of the third volute fan.

Preferably, in the foregoing volute fan combination structure,

Providing at least a first flow guiding portion parallel to the mounting plate at a front wall of the third air outlet of the two-way volute fan; and/or at least a front wall of the fourth air outlet of the two-way volute fan, A second flow guiding portion parallel to the mounting plate is provided.

Preferably, in the volute fan combination structure described above, the first flow guiding portion is a sleeve extending upward, and the second flow guiding portion is a sleeve extending downward.

Another object of the present invention is to provide a vertical air conditioner, specifically adopting the following scheme:

A vertical air conditioner includes an outer casing, wherein the outer casing has a top air outlet at the top and a bottom air outlet at the bottom; and a main body air duct disposed in the outer casing, the main air duct and the top The air outlet is connected to the bottom air outlet, and further comprises the foregoing volute fan combination structure, The volute fan combination structure is disposed in the outer casing, and supplies air to the top air outlet and/or the bottom air outlet through the main body air passage.

The beneficial effects of the invention are:

1. For the combined structure of a plurality of volute fans arranged in sequence, the arrangement of adjacent volute fans in a position perpendicular to the front and rear direction of the mounting plate is arranged, so that the air outlet of the middle volute fan can avoid both sides The volute of the volute fan reduces the interference between the winds.

2. Further, for the combined structure of the three volute fan, the second volute fan is spatially staggered with the first volute fan and the third volute fan to avoid the first volute fan and the third volute fan It interferes with the airflow of the second volute fan.

3. The impact on the overall size of air conditioning equipment such as vertical air conditioners is small, and the amount of increase in thickness is small due to the staggered setting of the volute fan. Only the height of the vertical air conditioner needs to be adjusted to meet the spatial change demand. The overall size of the vertical air conditioner is generally high, and the adjustment of the height has little effect on the overall size design.

4. The second volute fan in the middle can generate air in both directions, and the overall airflow can be increased without any change to the original volute fan.

5. Tilting the two air outlets of the second volute fan, thereby reducing the size of the first volute fan and the third volute fan protruding from the second volute fan, and reducing the thickness and/or width direction The impact of the overall size of the vertical air conditioner.

6. A diversion portion is arranged at the inclined air outlet of the second fan for adjusting the wind direction of the air outlet, so that the air outlet of the air outlet is substantially parallel to the installation after avoiding the first volute fan and the third volute fan. The direction of the board is sent out, and when the air conditioning apparatus is set to supply air in one direction, the reflected wind of the front panel can reduce the influence on the folded airflow.

DRAWINGS

The above and other objects, features and advantages of the present invention will become more apparent from

Fig. 1 is an external view of an air conditioning apparatus of the present invention.

2 is a schematic view showing the installation of a volute casing structure in an air conditioning apparatus.

Fig. 3A is a schematic view showing the flow of air in an air conditioning apparatus of the present invention in a state in which both the upper and lower air outlets are open.

Fig. 3B is a schematic view showing the flow of air in the air conditioning apparatus of the present invention with the lower air outlet closed and the upper air outlet opened.

Figure 4 is a partial enlarged view of a portion A of Figure 3A.

Fig. 5 is a front elevational view showing the volute fan combination structure.

Figure 6 is a side view of the volute fan combination structure.

Figure 7 is an exploded perspective view of the volute fan and the mounting plate of the volute fan combination mechanism.

Figure 8 is a front view and a side view of a mounting plate with a second half of the volute.

Fig. 8B is an enlarged view of a portion B in Fig. 8.

Figure 9 is an assembled view of a first half-shell with an impeller and an electric machine and a mounting plate with a second half-shell.

Figure 10 is a side view of the second volute fan.

Figure 11 is a cross-sectional view of the second volute fan.

Figure 12 is a cross-sectional view of another embodiment of a second volute fan.

Figure 13 is an exploded perspective view of the first volute fan.

Figure 14 is an external view of the first volute fan.

Figure 15 is a cross-sectional view showing the mounting structure of the first volute fan.

Figure 16 is a partial enlarged view of the D area in Figure 15 .

Figure 17 is a partial enlarged view of the E area of Figure 15.

Fig. 18 is a partial enlarged view of the F area in Fig. 15.

detailed description

The invention is described below based on the examples, but the invention is not limited to only these examples. In the following detailed description of the invention, some specific details are described in detail. The invention may be fully understood by those skilled in the art without a description of these details. In order to avoid obscuring the essence of the present invention, well-known methods, procedures, procedures, and components are not described in detail.

In the present application, the definition of the direction is as shown in Figs. 1, 2, wherein the front-rear direction is defined as being perpendicular to the mounting plate 4, wherein the front panel 51 is located at the front and the rear panel 55 is at the rear; The direction is defined as being parallel to the mounting plate, with the top air outlet 53 being above and the lower air outlet 54 being below. The left-right direction is defined as being parallel to the direction of the mounting plate and perpendicular to the up-and-down direction, wherein the left-hand direction in FIG. 1 is the left side and the right-hand direction is the right side. For FIG. 2, the direction perpendicular to the paper surface is closer to the observer side. On the side, the side opposite to the left side is the right side.

The present application designs a volute fan combination structure of an air conditioning apparatus, including a mounting plate 4 and a plurality of volute fans. The air conditioning device refers specifically to an electrical device having a wind function, such as a vertical air conditioner, a fan, an air purifier, and the like, capable of adjusting indoor air parameters. As shown in Figures 1-3, the air conditioning apparatus has a housing 5 above which a top air outlet 53 is preferably provided, and a bottom portion is provided below the housing 5, preferably at the bottom of the housing 5. The tuyere 54; the outer casing includes a front panel 51 and a rear panel 55, and a hollow chamber is enclosed between the front panel 51 and the rear panel 55. The hollow chamber is provided with a volute fan combination structure, mainly composed of a mounting plate 4 and a plurality of volute fans, and the specific structure thereof will be described in detail later. The volute fan combination structure is disposed in the hollow chamber in an up and down direction, and the volute is disposed in front of the mounting plate 4 and opposed to the front panel 51. The mounting plate 4 divides the hollow chamber into two separate portions, and the space between the rear side of the mounting plate 4 and the rear panel 55 forms an inlet duct 57, the inlet duct 57 and the inlet duct on the rear panel 55. The grids are connected to each other. As a preferred solution, a heat exchange mechanism such as an evaporator or the like is provided inside the inlet duct 57. The space between the front side of the mounting plate 4 and the front panel 51 forms a main body duct 56 of the air conditioning apparatus, and the main body duct 56 communicates with the top air outlet 53 and the bottom air outlet 54, respectively. The mounting plate 4 is provided with a mounting plate air inlet at a position corresponding to the mounting position of the volute. The position of the air inlet of the mounting plate is opposite to the position of the air inlet of the volute, and the air outlet of the volute communicates with the main air duct 56. When the air conditioning device is working, the air enters the air inlet duct 57 through the inlet grille on the rear panel 55, and then enters the volute air inlet through the air inlet of the mounting plate, and is accelerated by the centrifugal fan of the volute fan through the volute The air outlet is sent to the main air duct 56, and then moved downward in the main body duct 56 by the bottom air outlet 54, and/or upwardly moved by the top air outlet 53.

The volute fan combination structure of the present application comprises a mounting plate and at least three volute fans mounted on a front side of the mounting plate, and at least three volute fans include an upper air outlet having an upwardly ventilating air outlet a volute fan, and a lower volute fan located below the air outlet having a downwardly directed air outlet, and at least one intermediate volute fan disposed between the upper volute fan and the lower volute fan, at least one intermediate worm The casing fan includes at least one two-way volute fan, and the two-way volute fan has a two-way air outlet capable of simultaneously blowing up and down, the two-way air outlet and a worm adjacent to the two-way volute fan The arrangement of the shell fan staggered in the front and rear direction. At least one intermediate volute fan may be a combination of a two-way volute fan and a one-way volute volute fan, or all of them may be a two-way volute fan. The specific way of staggering the two-way air outlet and the volute fan adjacent to the two-way volute fan in the front-rear direction may be to shift the front and rear direction of the volute fan, and to set the two-way air outlet to oblique wind and the above two modes. The combination, the specific structure will be explained in detail below.

The volute fan combination structure of the present application will be described in detail below by taking FIG. 3-18 as an example. As shown in Figure 5-7, the volute fan combination structure includes a mounting plate 4 and three volute fans (hereinafter referred to as fans). The three volute fans include a first fan 1 disposed on the upper side of the mounting plate 4, a third fan 3 disposed on the lower side of the mounting plate 4, and a first fan 1 and a third fan 3 disposed on the mounting plate 4. Between the second fan 2. Wherein, the first fan 1 has a first fan air outlet 18 that faces upward; the third fan is provided with a third fan air outlet 39 that faces downward; the second fan has two air outlets, wherein the second fan An air outlet 28 is arranged to bleed upwards, and a second air outlet 29 of the second fan is arranged to bleed downward. It should be noted that, although the mounting plate is disposed in the up and down direction in the embodiment, the three volute fans are also arranged in the up and down direction, but the technical solution of the present application should not be limited to the mounting plate structure disposed in the up and down direction, and is installed. It is possible for the plates to be arranged horizontally or obliquely. The upper, lower, left and right, and front and back are referred to herein as relative directions with respect to the mounting plate.

The second fan 2 is disposed between the first fan 1 and the third fan 3, and the air outlet is provided in a manner of up and down air. If the three fans are installed on the same plane in a conventional manner, the volute of the first fan 1 and the volute of the third fan 3 block the airflow of the second fan 2, hindering the blowing of the second fan 2. The wind smoothly enters the main air duct 56, and for this purpose, the three fans are arranged to have a staggered structure in space, so that the second fan first air outlet 28 and the second fan second air outlet 29 and the first fan 1 and The position of the three fans 3 is spatially staggered, minimizing the influence of the first fan 1 and the third fan 3 on the outlet of the second fan 2, for example, three fans in the front-rear direction and/or the left-right direction. Staggered settings.

As a preferred embodiment, as shown in FIG. 6, the three fans are arranged in a staggered manner. Specifically, the installation position of the second fan 2 on the mounting plate 4 is set at the first sum. The front side of the installation position of the third fan, that is, the installation position of the second fan 2 is set closer to the main body duct 56 than the installation position of the first fan 1 and the third fan 3, so that the second fan 2 is in the up and down direction The wind can at least partially avoid the interference of the volute of the first fan 1 and the volute of the third fan 3, It is sent out smoothly through the main body duct 56. Preferably, the mounting position of the second fan 2 on the mounting plate 4 on the front side of the mounting position of the first and third fans is achieved by changing the shape of the mounting plate 4, as shown in FIGS. 6-8. The mounting plate has a first fan mounting portion 41, a second fan mounting portion 42, and a third fan mounting portion 43, wherein the second fan mounting portion 42 is interposed between the first fan mounting portion 41 and the third fan mounting portion 43. The step is formed such that the second fan mounting portion 42 protrudes toward the front front panel 51 in comparison with the first fan mounting portion 41 and the third fan mounting portion 43, so that the shape of the three fans can be changed without changing the shape of the three fans When the three fans are mounted on the mounting plate 4, the mounting position of the second fan 2 on the mounting plate 4 is located on the front side of the mounting position of the first and third fans. The advantage of the front and rear staggered arrangement is that the width of the volute fan assembly in the left-right direction is not increased, but the thickness in the front-rear direction is increased to some extent, and the influence on the overall size of the air-conditioning device is relatively small. As a preferred manner, the inner surface of the rear wall of the first air outlet 28 of the second fan and the second air outlet 29 of the second fan may be parallel to the plane of the mounting plate, and the extended surface of the plane is respectively associated with the first fan 1 and The volutes of the third fan 3 do not intersect. In this way, the air blow of the second fan 2 can not be blown onto the volutes of the first fan 1 and the third fan 3, and the volutes of the first fan 1 and the third fan 3 are ventilated to the second fan 2 Minimize impact

It is also possible to adopt a manner of staggering the three fans in the left-right direction (not shown), that is, arranging the second fan 2 on the left side or the right side of the first fan 1 and the third fan 3, and also reducing the first The interference of the fan 1 and the third fan 3 to the air of the second fan 2, but this method greatly increases the width of the volute fan assembly in the left-right direction, which is disadvantageous to the overall layout of the air conditioning device.

As another preferred embodiment, the second fan first air outlet 28 and the second fan second air outlet 29 of the second fan 2 may be disposed to be inclined with respect to the volute of the second fan 2 . Taking the example of FIG. 3-6 as an example, in the actual installation state, the volute of the second fan 2 is installed in a manner substantially parallel to the plane of the second fan mounting portion 42 of the mounting plate 4, as shown in FIG. 3, and second. The volute plane of the fan 2 extends substantially in the up and down direction. The second fan first air outlet 28 and the second fan second air outlet 29 are disposed to extend from the mounting plate 4 to the front panel 51 (ie, the front-rear direction) away from the volute, specifically, the second fan An air outlet 28 is provided to bleed toward the front upper direction, and the second fan second air outlet 29 is provided to bleed toward the front lower direction. Referring to Figures 6, 10 and 11, the first air outlet 28 of the second fan includes a second fan first air outlet rear wall inner surface 282 near the second fan mounting portion 42 and a second fan first air outlet near the front panel 51. The inner wall 281 of the front wall, the inner wall 281 of the front wall of the first air outlet of the second fan may be inclined or curved, and the extended surface 2811 of the inclined surface of the inclined surface or the curved surface The plane of the mounting plate 4 has a first inclination angle θ1; the inner surface 282 of the first air outlet of the second fan may have a slope or a curved surface, and the inclined surface 2821 of the inclined surface or the curved surface has a second inclination angle θ2 with the plane of the mounting plate 4. The magnitudes of the first inclination angle θ1 and the second inclination angle θ2 may be the same or different. The second fan second air outlet 29 has a second fan second air outlet rear wall inner surface 292 near the second fan mounting portion 42 and a second fan second air outlet front wall inner wall 291 near the front panel 51, the second fan The second air outlet front wall inner wall 291 may have a slope or a curved surface, and the inclined surface or the curved surface direction 2911 has a third inclination angle θ3 with the plane of the mounting plate 4; the second fan second air outlet rear wall inner surface 292 may be inclined or The curved surface direction 2921 of the curved surface, the inclined surface or the curved surface has a fourth inclination angle θ4 with the plane of the mounting plate 4. The magnitudes of the third inclination angle θ3 and the fourth inclination angle θ4 may be the same or different. As a preferred manner, the extended surface of the inclined surface of the inner surface 282 of the first air outlet of the second air blower or the extended surface 2821 of the curved surface of the curved surface does not intersect with the volute of the first fan 1, as shown in FIG. The extension surface 2921 of the inclined surface of the inner surface 292 of the rear wall of the second air outlet of the second air blower or the curved surface of the curved surface of the curved surface 2921 does not intersect with the volute of the third fan 3 (not shown); the meaning of disjoint It means that the portion of the extended surface 2821 of the inclined surface or the curved surface of the curved surface that coincides with the projection of the volute on the mounting plate is located in front of the volute in the front-rear direction. With this arrangement, the wind blown by the first air outlet 28 and the lower air outlet 29 of the second fan can be prevented from being blown onto the volutes of the first fan 1 and the third fan 3, and the first fan 1 and the third can be reduced. The volute of the fan 3 interferes with the airflow of the second fan 2.

As another preferred embodiment, using the combination of the above-mentioned staggered manners, as shown in FIG. 3-7, the mounting plate has a first fan mounting portion 41, a second fan mounting portion 42, and a third fan mounting portion. 43. The second fan mounting portion 42 forms a step with the first fan mounting portion 41 and the third fan mounting portion 43 such that the second fan mounting portion 42 compares the first fan mounting portion 41 with the third fan mounting portion. 43 protrudes toward the front front panel 51; at the same time, the second fan first air outlet 28 and the second fan second air outlet 29 are disposed to be inclined with respect to the volute, that is, from the mounting board 4 to the front panel The direction of 51 (i.e., the front-rear direction) extends in a direction away from the volute. Preferably, the extended surface of the inclined surface of the inner surface 282 of the first air outlet of the second air blower or the extended surface 2821 of the curved surface of the curved surface does not intersect with the volute of the first fan 1, as shown in FIG. 4; The extended surface 2921 of the inclined surface of the second air outlet rear wall inner surface 292 or the curved surface of the curved surface does not intersect with the volute of the third air blower 1. The staggered manner of the combination can reduce the thickness (front and rear direction) of the volute fan combination structure caused by the staggered front and rear direction, and can also avoid the second fan first air outlet 28 and the second fan number. The angle of inclination of the two air outlets 29 relative to the volute is too large to affect the airflow of the volute fan, ensuring that the thickness (front and rear direction) and width (left and right direction) of the volute fan combination structure are not increased by a large size, which is advantageous for the air. The overall structure of the adjusting device is optimized, and the interference of the first fan and the third fan to the air of the second fan is also relatively low, so that the air outlets of the three fans can smoothly move in the main air duct 56.

As another preferred manner, a flow guiding portion may be disposed at the second fan first air outlet 28 and/or the second fan second air outlet 29 of the second fan, as shown in FIG. The first air outlet 28 of the second fan is provided with an upper flow guiding portion 280, and the second air outlet 29 is provided with a lower flow guiding portion 290. The upper deflector 280 is disposed at least at a front wall of the first air outlet 28 of the second fan, that is, at a position close to the front panel 51; and the lower deflector 290 is disposed at least at a front wall of the second air outlet 29 of the second fan, that is, The position of the upper deflector 280 and the lower deflector 290 are substantially parallel to the mounting plate 4 and/or the front panel 51, that is, extend in the up and down direction. Preferably, the upper deflector 280 The lower deflector 290 has a sleeve structure, and the sleeve is disposed at the second fan first air outlet 28 and the second fan second air outlet 29, and the sleeve extends in a substantially up-and-down direction. Thus, the wind blown by the upper air outlet 28 and the lower air outlet 29 enters the main air duct 56 in a manner substantially parallel to the direction of the main air duct 56, and the interference of the reflected airflow of the front panel 51 on the airflow in the main air duct 56 can be reduced. The airflow in the main air duct 56 is smoother and the energy loss is reduced. At the same time, if one of the top air outlet 53 or the bottom air outlet 54 is closed, as shown in FIG. 3B, the bottom air outlet 54 is closed, for example, the second air blower second air outlet 29 and the third air blower air outlet 39 are The wind blown downward moves back to the lower end of the main body duct 56, and is folded back, and moves to the top air outlet 53 through the passage formed between the third fan 3 and the volute of the second fan 2 and the front panel 51, due to the lower deflector 290. The wind blown downward by the lower air outlet 29 is substantially parallel to the main air duct 56, and the wind that is folded back passes through the passage between the volute of the second fan 2 and the front panel 51 without being ventilated by the lower air outlet 29. The interference can thus move smoothly upwards. If the lower flow guiding portion 290 is not provided, the downward and downward inclined wind of the lower air outlet 29 hinders the wind that is folded back, so that the folded wind cannot smoothly move upward. Similarly, the upper deflector 280 is applied, and the upper deflector 280 functions the same as the lower deflector 290 when the top air outlet 53 is closed.

The specific installation of the volute fan assembly is described below, as shown in Figure 7-9. The mounting plate has a first fan mounting portion 41, a second fan mounting portion 42, and a third fan mounting portion 43, and the first fan mounting portion 41, the second fan mounting portion 42, and the third fan mounting portion 43 are respectively provided with a first One a fan mounting surface, a second fan mounting surface and a third fan mounting surface (not shown), wherein the second fan mounting surface is convex with respect to the first fan mounting surface and the third fan mounting surface toward the front panel 51 The edge of the first fan mounting surface and the third fan mounting surface is provided with a shroud to enhance the overall strength of the mounting plate, and at the same time, the first fan mounting portion 41 and the third fan mounting portion 43 form a recessed portion, as shown in FIG. The first fan mounting surface, the second fan mounting surface and the third fan mounting surface are respectively formed with a first mounting plate air inlet 411, a second mounting plate air inlet 421, and a third mounting plate air inlet 431, as shown in FIG. Shown. The volute of the fan is composed of two half shells, and the two half shells have substantially the same thickness. Preferably, the two half shells are formed by the volute from a center line perpendicular to the axis of the volute, so that the half shell is arranged. Manufacturing. Specifically, the first fan 1 includes a first fan rear half shell 15, a first fan front half shell 13, a first motor 11, and a first impeller 14, and the first fan rear half shell 15 and the first fan front half shell 13 form a first a first volute air inlet is opened on the first fan half shell 15 of the first volute, the first motor 11 and the first impeller 14 are mounted on the first fan front half shell 13; the second fan 2 includes a second fan rear half shell 25. The second fan front half shell 23, the second motor 21, the second impeller 24, the second fan rear half shell 25 and the second fan front half shell 23 form a second volute, and the second fan rear half shell 25 is provided with a second a second volute air inlet, a second motor 21 and a second impeller 24 are mounted on the second fan front half shell 23; the third fan 3 includes a third fan rear half shell 35, a third fan front half shell 33, a third motor 31, The third impeller 34, the third fan rear half shell 35 and the third fan front half shell 33 form a third volute, and the third fan rear half shell 35 is provided with a third volute air inlet, a third motor 31 and a third impeller 34 is mounted on the front half of the third fan 33; as shown in FIG.

When the first fan 1, the second fan 2, and the third fan 3 are respectively mounted to the first fan mounting portion 41, the second fan mounting portion 42, and the third fan mounting portion 43, the first fan rear half shell is first 15. The second fan rear half shell 25 and the third fan rear half shell 35 are respectively fixed to the first fan mounting surface of the first fan mounting portion 41, the second fan mounting portion 42 and the third fan mounting portion 43 by a connecting member, The second fan mounting surface and the third fan mounting surface may be screws, bolts, rivets, etc., as shown in FIG. 8B, in the manner of screws 91. The first volute air inlet, the second volute air inlet, and the third volute air inlet are respectively opposite to the first mounting plate air inlet 411, the second mounting plate air inlet 421, and the third mounting plate air inlet 431. Since the first fan mounting portion 41 and the third fan mounting portion 43 form a recessed portion, the first fan rear half shell 15 and the third fan rear half shell 35 are embedded in the recessed portion, and the second fan rear half shell 25 is located at the The second fan mounting portion 42 protrudes from the mounting plate 4. First fan front half shell 13, second The fan front half shell 23 and the third fan front half shell 33 are integrally connected to the first fan rear half shell 15, the second fan rear half shell 25, and the third fan rear half shell 35 respectively after the corresponding motor and the impeller are installed. And then constitute the entire volute fan combination structure, as shown in Figure 9. Compared with the conventional way of fixing the motor to the mounting plate, the motor of the present application is mounted on the volute, and the motor and the impeller can be disassembled together with the volute, and the mounting plate is not required to be removed, thereby improving the overall assembly convenience and maintenance. Sex. The specific structure of the volute fan will be described in detail later.

The installation structure of the volute fan is described in detail below by taking the first fan 1 and the mounting plate 4 as an example, as shown in FIGS. 13-18. In the following description, the axial direction is defined as a direction parallel to the motor axis, the radial direction is defined as a direction perpendicular to the motor axis, and the circumferential direction is defined as a direction of rotation about the motor axis; the sides are relative In the direction of the motor axis, for example, the first half-shell 13 (the first fan front half-shell) of FIG. 13 is located on one side, the second half-shell 15 (the first fan rear half-shell) is located on the other side, and the impeller 14 is located at the first The middle of the half shell 13 and the second half shell 15.

As shown in FIG. 15, the distance from the circumferential wall of the volute near the center line of the volute to the axis in the axial direction as viewed from the axial section of the volute from the plane containing the axis 111 of the motor The distance from the peripheral wall of the volute on both sides of the axis is greater than the distance from the axis 111, which is the distance from the midline of the peripheral wall to the axis 144 of the impeller, with a difference of H. Preferably, the distance from the outer wall of the peripheral wall of the volute of the volute center line 139 in the direction of the axis 111 to the axis 111 is greater than the distance from the outer wall of the peripheral wall of the volute on both sides of the axis 111 from the axis 111, the difference The value is H1 (not shown). Preferably, the axial cross section of the outer wall of the peripheral wall of the volute may be curved, trapezoidal, curved, triangular, or other polygonal shape. Preferably, the volute is viewed from an axial section obtained by cutting the volute from a plane containing the axis 111 of the motor, and the inner wall of the volute peripheral wall of the volute center line 139 in the direction of the axis 111 to the axis 111 The distance is also greater than the distance of the inner wall of the peripheral wall of the volute on both sides of the axis from the axis 111, the difference H2 (not shown). H1, H2 may be the same as or different from H, depending on the thickness variation of the peripheral wall of the volute; preferably, the axial section of the inner wall of the peripheral wall of the volute may also be curved, trapezoidal, and trimmed to match the shape of the outer wall of the peripheral wall. Curves, triangles, or other polygons. By designing the outer wall of the peripheral wall of the volute as an intermediate protruding structure, it is possible to adapt to different vertical air conditioning structures such as curved outer casings. In addition, since the thickness of the peripheral wall of the volute is generally uniform, the convexity of the outer wall of the peripheral wall causes the inner wall of the peripheral wall to also have a convex structure, and the volute perpendicular to the peripheral wall and the side wall can increase the volume inside the volute and improve The air supply capacity of the volute fan.

For ease of manufacture, the volute can be configured as a component body. As shown in Figure 13-15. The volute includes a first half shell 13 and a second half shell 15 including a first half shell peripheral wall 131 and a first half shell side wall 132, the second half shell including a second half shell peripheral wall 151 and a second The half-shell side wall 152, the first half-shell peripheral wall 131 and the second half-shell peripheral wall 151 are curved so as to surround the outer circumference of the impeller 14. The first half of the peripheral wall 131 includes a fixed end connected to the edge of the first half-shell side wall 132 and a first connecting end 1311 away from the first half-shell side wall 132, and the second half-shell peripheral wall 151 includes the second half a fixed end of the shell side wall 152 connecting the fixed end and a second connecting end 1311 away from the second half shell side wall 152, a first connecting end 1311 of the first half shell peripheral wall 131 and a second side of the second half shell surrounding wall 151 The connecting ends 1311 are connected such that the insides of the first half shell 13 and the second half shell 15 form a receiving cavity for accommodating the impeller 14 and formed along the radius of the impeller 14 with respect to the motor axis 111. A cylindrical shape in which the direction of rotation becomes large.

The motor 11 of the volute fan in this embodiment includes a motor body 117 and a rotating shaft 112. The impeller 14 is mounted in the accommodating chamber, and has a cylindrical shape in which a plurality of blades 141 which are elongated in the axial direction of the motor shaft 111 are radially arranged at a predetermined interval with respect to the motor axis 111. One end of the blade 141 is attached to the outer edge portion of the substantially circular rotating circular plate 142, and the other end of the blade 141 is attached to the annular support ring 143 and forms an impeller air inlet therein. The rotating circular plate 142 is fixed to the rotating shaft 112 of the motor at the center, and the impeller 14 is rotated about the rotating shaft 112 under the driving of the motor 11. The first half of the casing 13 is provided with a motor mounting opening 133. The rotating circular plate 142 of the impeller is disposed adjacent to the motor mounting opening 133. The rotating shaft 112 of the motor 11 passes through the motor mounting opening and is coupled to the rotating circular plate 142 of the impeller 14. The connection, which in turn drives the rotating circular plate 142 to rotate, the second half-shell 15 is provided with a volute air inlet 153, and the volute air inlet 153 is opposite to the impeller air inlet to guide the air to the inside of the impeller 14. The motor body 117 is supported by the first half-shell 13. A first vibration damping device is disposed between the motor body 117 and the first half-shell 13, and the structure and specific mounting manner of the first vibration damping device will be described in detail below.

Since the volute is usually made of a plastic material and the overall strength is not high, directly mounting the motor body 117 to the first half-shell 13 may cause the strength of the first half-shell 13 to be insufficient to support the power of the motor to cause deformation of the first half-shell 13. Or damage, for this reason, as a preferred embodiment, comprising a support disk 12 made of a metal material, the support disk 12 being fixed on the first half-shell 13, preferably fixed in the first On the outer wall of the first half-shell side wall 132 of the half-shell 13, the motor body 117 is fixed to the support disk 12. Preferably, the motor body 117 is fixed to the support tray 12 away from the first half shell 13 On the side. By providing the support disk 12, the motor body 117 can be placed on the volute and supported by the volute without deforming or damaging the volute.

When the support disk 12 is provided, the first vibration damping device can be disposed between the support disk 12 and the motor body 117. A flange 133 is provided on the outer wall of the peripheral wall of the motor body 117, and the flange 133 is fixed to the support disk 12, and the first damper device is disposed between the flange 133 and the support disk 12. Preferably, the first damping device is preferably a first damping washer 114 disposed between the flange 133 and the support disk 12. As a preferred solution, as shown in FIG. 13, the first damper washer 114 is provided in a columnar shape, and the outer circumference of the columnar first damper washer 114 is provided with a socket, and the flange 133 is in the form of a sheet from the socket. Inserted into the interior of the first damper washer 114, the first damper washer 114 is provided with a through hole communicating with the mounting hole of the flange 133, and the connecting member such as a screw or a stud passes through the through hole of the first damper washer 114. The mounting hole of the flange 133 is connected to the support disk 12 to fix the motor body 117. The first damper washer 114 preferably employs a rubber mount. When the support disk 12 is not provided, the motor 11 can also be directly connected to the first half-shell 13 by the above-described first damping device in such a manner that the support disk 12 is replaced with the first half-shell 13.

The first half-shell circumferential surface 131 extends from the fixed end to the first connecting end 1311 in a radial direction away from the motor axis 111, and the second half-shell circumferential surface 151 is in a diameter from the fixed end to the second connecting end 1311. The direction extends in a direction away from the motor axis 111. Preferably, the connection between the first connection end 1311 of the first half-shell peripheral wall 131 and the second connection end 1311 of the second half-shell peripheral wall 151 is close to the volute center line 139 perpendicular to the motor axis 111 or perpendicular to the motor axis 111. The volute centerline 139 coincides.

In order to improve the airtightness of the volute, a sealing structure may be provided at the junction of the first half shell 13 and the second half shell 15. Preferably, the sealing structure is a rib disposed on one of the first connection end 1311 of the first half-shell peripheral wall 131 and the second connection end 1311 of the second half-shell peripheral wall 151 and a groove disposed on the other Preferably, as shown in FIG. 15, a rib 1312 extending toward the second half-shell 15 is provided on the first connecting end 1311 of the first half-shell peripheral wall 131, and the rib is formed on the second half-shell peripheral wall 151. 1312 is correspondingly provided with a groove 1512. When the first half shell 13 is connected with the second half shell 15, the rib 1312 is embedded in the groove 1512, which can improve the sealing of the half shell and avoid leakage of the peripheral wall of the volute. To reduce the efficiency of the volute fan. The structure of the rib 1312 and the groove 1512 may be provided in one or a plurality of ways.

The sealing structure may also be in the form of a sealing ring by providing a flange on one of the first half shell 13 and the second half shell 15, and the other is provided with a groove which abuts against the groove and presses the sealing ring Close the groove to achieve a seal. The seal can be made of rubber or other soft material. Sealing structure is set in the worm The radially outer side or the radially inner side of the peripheral wall of the shell may be used.

As a preferred embodiment, as shown in FIG. 15, the rotating circular plate 142 is disposed from the edge toward the axial center of the rotating circular plate 142 toward the inside of the impeller 14, and the rotating circular plate 142 is presented in a substantially bowl shape. Or conical, the radially inner side of the rotating circular plate 142 forms a motor accommodating space, and the rotating shaft 112 of the motor passes through the volute into the volute, and a part of the motor main body 117 can be located in the motor accommodating space, which has the advantage of being reduced The length of the motor 11 protruding from the outside of the volute reduces the installation width in the axial direction of the volute fan, so that the overall structure of the volute fan is more compact. At this time, correspondingly, the first half-shell side wall 132 of the first half-shell 13 is formed with an inner concave portion 1321, and the center of the inner concave portion 1321 is provided with a motor mounting opening 133, and the inner concave portion 1321 is also disposed from the edge toward the motor mounting opening. The direction of the axis of 133 protrudes toward the inside of the impeller 14.

In order to further reduce the vibration between the motor and the support disk, as shown in FIG. 17, preferably, a flange 133 is provided on the outer wall of the peripheral wall of the motor body 117, and the flange 133 is fixed to the support disk 12 at the convex A first damping structure is disposed between the rim 133 and the support disk 12. Preferably, the first damping structure is preferably a first damping washer 114 disposed between the flange 133 and the support disk 12. As a preferred solution, as shown in FIG. 17, the first damper washer 114 is provided in a column shape, and the outer circumference of the columnar first damper washer 114 is provided with a socket, and the flange 133 is in the form of a sheet from the socket. Inserted into the interior of the first damper washer 114, the first damper washer 114 is provided with a through hole communicating with the mounting hole of the flange 133, and the connecting member such as a screw or a stud passes through the through hole of the first damper washer 114. The mounting hole of the flange 133 is connected to the support disk 12 to fix the motor 11. The first damper washer 114 preferably employs a rubber mount.

In order to further reduce the vibration between the motor 11 and the impeller 14, as shown in FIG. 18, a second vibration damping structure is disposed between the rotating shaft 112 of the motor and the rotating circular plate 142 of the impeller 13. Preferably, the second damping structure comprises a rubber sleeve 115 and a metal ferrule 116; the rubber sleeve 115 is fixed on the outer circumference of the rotating shaft 112 of the motor and rotates synchronously with the motor shaft 111, and the outer circumference of the metal ferrule is connected with the rotating circular plate 142. The circumference is connected with the rubber sleeve 115, and the power of the rotating shaft 112 of the motor is transmitted to the rotating circular plate 142 to drive the impeller 14 to rotate. The presence of the rubber 115 can effectively reduce the vibration transmitted by the motor 11 to the impeller 14, effectively reducing noise.

Preferably, in order to reduce the vibration transmitted from the motor body 117 to the volute 13, a cylindrical support 134 may be provided at the edge of the motor mounting opening 133 of the first half-shell 13, and the inside of the cylindrical support 134 has a mounting port with the motor. 133 communicating through hole, as shown in FIG. 17, the fixed end of the cylindrical support 134 is mounted to the motor The edges of the ports 133 are joined, and the free ends of the cylindrical supports 134 extend in the direction away from the center of the volute on the axis. At least a portion of the motor body 117 is located within the cylindrical support 134 such that the rotating shaft 112 of the motor is coupled to the impeller 14 through the motor mounting opening 133. A third damping structure is disposed between the cylindrical support 134 and the outer wall of the peripheral wall of the motor body 117. Preferably, the third damping structure is a second sealing ring 135 disposed on an end or an inner wall of the cylindrical support 134. When the motor 11 is located inside the cylindrical support 134, the second sealing ring 135 forms an elastic fit with the outer wall of the peripheral wall of the motor body 117, which can reduce the vibration transmitted by the motor to the volute; The motor mounting port 133 is closed to achieve a seal at the motor mounting port 133 to prevent the wind from the motor mounting port from reducing the efficiency of the volute fan. The second seal ring 135 may be mounted on the cylindrical support 134 or may be mounted on the outer circumference of the motor body 117. Preferably, as shown in FIG. 17, the second seal ring 135 is provided in a U-shaped annular structure, and the opening of the U-shaped annular structure faces the free end of the cylindrical support 134 and is mounted on the barrel. On the free end of the holder 134, the outer peripheral wall of the peripheral wall of the second seal ring 135 abuts against the outer wall of the peripheral wall of the motor body 117. Preferably, the inner circumference of the second sealing ring 135 is provided with a sealing lip extending toward the motor to abut against the outer wall of the peripheral wall of the motor body 117. Preferably, the volute 13 is provided with a mounting bracket 136, and the support disc 12 is connected to the mounting bracket 136 to be mounted to the first half shell 13, and the side of the supporting disc 12 opposite to the cylindrical seat 134 is pressed tightly. The second sealing ring 135 clamps the second sealing ring between the support disc 12 and the cylindrical support 134 to better fix the second sealing ring 135.

Next, the mounting structure of the volute fan of the present embodiment will be described. As shown in FIG. 14, the mounting structure of the volute fan of the present embodiment includes the aforementioned volute fan and the mounting plate 4, and the volute fan is mounted on the mounting plate 4, and the mounting plate 4 is provided with a mounting plate air inlet 41. The second half shell 15 is fixedly connected to the mounting plate 4 by screws, studs, rivets, etc., and the volute air inlet 153 on the second half shell 15 is opposite to the mounting plate air inlet 41 on the mounting plate 4, and the motor 11 The impeller 14 is mounted to the first half-shell 13; the first half-shell 13 to which the motor 11 and the impeller 14 are mounted is coupled to the second half-shell 15 to mount the volute fan to the mounting plate 4.

The specific assembly method of the aforementioned volute fan and mounting plate 4 will be described in detail below:

When the volute fan is fixed to the mounting plate 4, the following steps are included:

step one:

The second half-shell 15 is connected to the mounting plate 4. Preferably, the second half-shell sidewall 152 passes through the fixing member Connected to the mounting plate 4, the second half-shell peripheral wall 151 is located on the side of the second half-shell side wall 152 away from the mounting plate 4. The fixing member can be a connector such as a screw or a rivet.

Step 2: The motor 11 and the impeller 14 are connected to the first half shell 13. There are two ways to do this:

Method 1:

Fixing the support disk 12 to the first half shell 13;

Passing the rotating shaft 112 of the motor 11 through the motor mounting opening 133 on the first half-shell 13 and fixing the motor 11 on the support disk 12 to fix the motor 11 to the first half-shell 13;

The rotating circular plate 142 of the impeller 14 is coupled to the rotating shaft 112 of the motor 11 to connect the impeller 14 to the motor.

Or, way 2:

Connecting the motor 11 to the support tray 12;

Fixing the support disk 12 together with the motor 11 to the first half-shell 13, and passing the rotating shaft 112 of the motor 11 through the motor mounting opening 133 on the first half-shell 13;

The rotating circular plate 142 of the impeller 14 is coupled to the rotating shaft 112 of the motor 11 to connect the impeller 14 with the motor 11.

In the third step, the first half-shell 13 to which the motor 11 and the impeller 14 are mounted is connected to the second half-shell 15, and the volute fan is integrally mounted to the mounting plate 4.

The order of step one and step two may be interchanged or may be performed simultaneously.

Compared with the existing volute fan structure, the motor 11 and the impeller 14 of the volute fan of the first embodiment are all mounted on the first half-shell 13, and are integrally mounted with the first half-shell 13 during installation, which is more convenient to install. When it is necessary to perform operations such as inspection, maintenance, replacement, etc. on the motor 11 or the impeller 14, it is only necessary to disassemble the first half-shell 13 together with the motor 11, the impeller 14, and the second half-shell 15. There is no need to disassemble the second volute 15, and it is not necessary to disassemble the mounting plate 4, and the overall maintainability is better.

In addition, the drawings are provided for the purpose of illustration, and the drawings are not necessarily to scale.

In the meantime, the example embodiments are provided so that this disclosure will be fully Numerous specific details are set forth, such as examples of specific components, devices, and methods, to provide a comprehensive understanding of the disclosure. Those skilled in the art will understand that there is no need to The example embodiments may be embodied in a number of different forms, and the example embodiments are not to be construed as limiting the scope of the disclosure. In some example embodiments, well-known device structures and well-known techniques are not described in detail.

When an element or layer is referred to as "on," "coupled to," "connected to," or "coupled to" another element or layer, the Or a layer, directly joined, connected or coupled to another element or layer, or an intermediate element or layer may be present. In contrast, an element is referred to as “directly on,” “directly connected,” “directly connected to,” “directly connected” or “directly connected” to another element or layer. There may be no intermediate elements or layers. Other words used to describe the relationship between the elements should be interpreted in a similar manner (e.g., "between" and "directly between", "adjacent" and "directly adjacent", etc.). The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be Terminology restrictions. These terms may be only used to distinguish one element, component, region, layer or section from another element, region, layer or section. Terms such as "first", "second" and other numerical terms when used herein do not denote an order or order unless the context clearly dictates. Thus, a first element, component, region, layer or section discussed below may be referred to as a second element, component, region, layer or section without departing from the teachings of the example embodiments. Further, in the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specified.

For ease of explanation, spatially related terms such as "inside", "outside", "below", "below", "lower", "above", "upper", etc. are used herein to describe one of the examples illustrated in the figures. The relationship of an element or feature to another element or feature. It will be understood that spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, an element that is "under" or "beneath" or "an" or "an" Thus, the example term "lower" can encompass both an orientation of the above and below. The device may be oriented (rotated 90 degrees or at other orientations) in other ways, and the spatially related descriptors used herein should be interpreted accordingly.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Having been made within the spirit and principles of the present invention Any modifications, equivalent substitutions, improvements, etc., are intended to be included within the scope of the present invention.

Claims

A volute fan combination structure, comprising: a mounting plate (4) and at least two adjacent volute fans mounted on the mounting plate (4), in two adjacent volute fans a volute fan has an intermediate air outlet between the adjacent two volute fans, and the volute fan having the intermediate air outlet is in a front and rear direction perpendicular to the mounting plate compared to the other volute fan The top is on the front.
The volute fan assembly structure according to claim 1, comprising: three volute fans, wherein the three volute fans comprise a third volute fan (3) and a second worm arranged in order from bottom to top. a shell fan (2) and a first volute fan (1); the second volute fan has a second volute fan outlet facing upward and/or downward, the second volute fan compared The first volute fan (1) and the third volute fan (3) are located forward in the front-rear direction.
The volute fan combination structure according to claim 2, wherein said first volute fan (1) has a first volute fan air outlet (18) that vents upward; said third volute The fan (3) has a third volute fan air outlet (39) that is ventilated downward; the second volute fan has a first vent fan (28) that is vented upward, and a downwardly directed outlet (28) The second ventilator of the wind is the second air outlet (29).
The volute fan combination structure according to claim 2, wherein the mounting plate (4) is provided with a corresponding first volute fan (1), a second volute fan (2) and a third a first fan mounting portion (41) of the volute fan (3), a second fan mounting portion (42), and a third fan mounting portion (43), wherein the second fan mounting portion is opposite to the first fan mounting portion (41) and a third fan mounting portion (43) protruding toward the front of the mounting plate (4).
The volute fan assembly structure according to claim 2, wherein the inner surface of the rear wall of the air outlet of the second volute fan is planar, and the extended surface of the plane and the fan of the second volute The volute of the first volute fan or the third volute fan opposite the tuyere does not intersect.
The volute fan assembly structure according to claim 5, wherein the second volute fan air outlet is directed away from the volute of the second volute fan (2) in a direction from the rear to the front. The direction of the tilt is extended.
The volute fan combination structure according to claim 6, wherein said second volute The fan has a first air outlet (28) of the second volute fan that is ventilated upward, and a second air outlet (29) of the second volute fan that is ventilated downward; the second ventilator fan is in the rear wall of the first air outlet The surface (282) is inclined or curved, and the extended surface of the inclined surface or the extended surface of the curved surface (2821) does not intersect with the volute of the first volute fan (1); the second volute fan The inner surface (292) of the rear wall of the second air outlet is inclined or curved, and the extended surface of the inclined surface or the extended surface of the curved surface (2921) and the volute of the third volute fan (3) are not intersect.
The volute fan combination structure according to claim 7, wherein:

Providing at least a first flow guiding portion (280) parallel to the mounting plate (4) at a front wall of the third air outlet (28) of the two-way volute fan; and/or

At least at a front wall of the fourth air outlet (29) of the two-way volute fan, a second flow guiding portion (290) parallel to the mounting plate (4) is provided.
The volute fan assembly structure according to claim 8, wherein the first flow guiding portion (280) is a sleeve extending upward, and the second flow guiding portion (290) is downwardly extending. Sleeve.
A vertical air conditioner includes an outer casing, wherein the outer casing has a top air outlet at the top and a bottom air outlet at the bottom; and a main body air duct disposed in the outer casing, the main air duct and the top The air outlet is connected to the bottom air outlet, and further comprising: a volute fan assembly structure according to any one of claims 1-9, wherein the volute fan combination structure is disposed in the outer casing, And blowing air to the top air outlet and/or the bottom air outlet through the main air duct.