ES2914227T3 - Floor Standing Air Conditioner and Scroll Fan Assembly Frame - Google Patents

Abstract

A vertical air conditioner, comprising: a housing provided with an upper air outlet (53) located in an upper part thereof and a lower air outlet (54) located in a lower part thereof, said housing comprising a panel front panel (51) and a rear panel (55) between which a hollow chamber is delimited; and a volute fan combination structure comprising: a mounting plate (4) and at least two adjacent volute fans mounted on said mounting plate (4), wherein one volute fan of the two adjacent volute fans has an intermediate inclined air outlet located between the two adjacent volute fans, said intermediate inclined air outlet extending along a direction away from said mounting plate (4), the volute fan combination structure being disposed within said hollow chamber along a longitudinal direction, a main body air duct (56) being formed between said at least two adjacent scroll fans and said front panel (51), wherein said main body air duct (56 ) respectively communicates with the upper air outlet (53) and the lower air outlet (54), the vertical air conditioner comprising three fans it is volute (1, 2, 3), with a third volute fan (3), a second volute fan (2) and a first volute fan (1) provided in an ascending sequence; characterized in that said second scroll fan (2) comprises second scroll fan air outlets (28, 29) configured to blow air upwards and blow air downwards, said second scroll fan air outlets (28, 29) extending ) along a direction away from said mounting plate (4).

Description

DESCRIPTION

Floor Standing Air Conditioner and Scroll Fan Assembly Frame

FIELD OF THE INVENTION

[0001] The present invention relates to the field of an air blowing mechanism, and specifically relates to a scroll fan combination structure and a vertical air conditioner.

BACKGROUND OF THE INVENTION

[0002] Currently, air conditioning devices available on the market can sometimes be provided with two volute fans blowing in two opposite directions, when bidirectional blowing is required. However, the power and volume limitations of a scroll fan, after its application in a very large air conditioning device, for example, a vertical air conditioner, may lead to the problem that the air volume is insufficient. If the power of a volute fan is raised, the volume of the volute fan can also be increased accordingly, so that, in addition, it is necessary to increase the total volume of the vertical air conditioner, in particular to increase a width and/or thickness. of the vertical air conditioner, as well as increase a space transversely occupied by the vertical air conditioner. All of these are unfavorable for the installation, use and transportation of vertical air conditioners.

[0003] Document CN104776575A describes an indoor air conditioning unit and a control method thereof. The indoor air conditioning unit comprises a casing, an upper fan part and a lower fan part, where the casing is provided with an air inlet, an upper air outlet and a lower air outlet below the outlet. top air; the upper fan part is disposed at the upper inner part of the casing and is used to suck air into the casing from the air inlet and to exhaust air from the upper air outlet; The bottom fan is arranged at the inner bottom of the case and is used to suck the air into the case from the air inlet and to exhaust the air from the bottom air outlet. The indoor unit further comprises at least one center fan part, wherein the at least one center fan part is arranged in the casing, is located between the upper fan part and the lower fan part, and is used for suck the air into the case from the air inlet and to expel the air from the upper air outlet or the lower air outlet. The indoor air conditioning unit provided by the invention has the advantages that users can freely select different air supply modes according to comfort demands, and the goal of quickly feeling cooling and heating effects is achieved. ; the upper and lower air outlet volume adjustment range is wide.

SUMMARY OF THE INVENTION

[0004] In view of this, the present invention provides a scroll fan combination structure capable of reducing the influence on blowing air of an intermediate scroll fan by a scroll from the scroll fans on both sides of a device. air blower having multiple volute fans.

[0005] In order to achieve the object, the present invention uses a vertical air conditioner according to claim 1.

[0006] The preferred embodiments of the invention are the subject matter of the dependent claims, the content of which is to be understood as an integral part of the present description.

[0007] The advantageous effects of the present invention are as follows:

1. For a combination of a plurality of sequentially arranged volute fans, one volute fan in two adjacent volute fans has a sloped air outlet located between two adjacent volute fans, which sloped air outlet extends so that it is inclined from back to front in a direction away from a volute of said one volute fan, so that said one volute fan is capable of blowing air inclined in an air blowing direction that can prevent disturbance of volute fans adjacent, and at the same time the volute fans as a whole can also be arranged in one plane, with a slight variation in volume.

2. For a three volute fan combination structure, two air outlets of the second volute fan are provided in an inclined manner so as to reduce the size of the second volute fan protruding from the first volute fan and the third fan. volute, so that it is possible to reduce the influence on the overall size of a vertical air conditioner in a thickness and/or a thickness direction. 3. The second intermediate scroll fan blows air bidirectionally in such a way as to increase a total air blowing volume under the circumstance that there is no need to make any changes to the original scroll fans.

4. In addition, it is also possible to allow the second scroll fan to be advanced with respect to the first scroll fan and the third scroll fan in a front-rear direction, to reduce a slanted extension of a slanted air outlet of the second fan volute, so that the air blowing of the second volute fan is smoother.

5. With a slight influence on the overall size of an air conditioning device, for example, a vertical air conditioner, the volute fan uses a combined form such that the inclined air outlet and the volute fan are arranged in such a way. staggered shape, resulting in a smaller increase in thickness, so that only one height of the vertical air conditioner needs to be adjusted to meet the variation requirement in space. Since the overall size of a vertical air conditioner is generally very tall, the height adjustment affects the design of the overall size less.

6. A deflector for adjusting an air direction of an air outlet is provided at the inclined air outlet of the second scroll fan, so that air blown from the air outlet is supplied in a direction substantially parallel to the mounting plate after bypassing the first volute fan and the third volute fan. When the air conditioning device is provided to blow air unidirectionally, the influence on the reciprocal airflow can be reduced by the reflection air from the front panel.

BRIEF DESCRIPTION OF THE ATTACHED DRAWINGS

[0008] The foregoing, as well as other objects, features and advantages of the present invention, will become more apparent from the following descriptions of the embodiments of the present invention with reference to the drawings, in which:

Figure 1 is an external view of the air conditioning device of the present invention.

Figure 2 is a schematic view of the assembly of the scroll combination structure within the air conditioning device.

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

Fig. 3B is a schematic view of an air flow of the air conditioning device of the present invention in a state where the lower air outlet is closed and the upper air outlet is open.

Figure 4 is a locally enlarged view of part A of Figure 3A.

Figure 5 is a front view of the volute fan combination structure.

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

Figure 7 is a schematic exploded view of a scroll fan and a mounting plate of the scroll fan combination structure.

Figure 8 is a front view and a side view of the mounting plate provided with a second volute half. Figure 8B is an enlarged view of part B of Figure 8.

Figure 9 is a schematic view of the assembly of a first half provided with an impeller and motor and a mounting plate with a second half.

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

Figure 11 is a sectional view of the second scroll fan.

Figure 12 is a sectional view of another embodiment of the second scroll fan.

Figure 13 is an exploded sectional view of the first scroll fan.

Figure 14 is an exterior view of the first scroll fan.

Figure 15 is a sectional view of a mounting structure of the first scroll fan.

Figure 16 is a locally enlarged view of area D of Figure 15.

Figure 17 is a locally enlarged view of area E of Figure 15.

Figure 18 is a locally enlarged view of area F of Figure 15.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The present invention is described as follows based on the embodiments, but the present invention is not limited only to such embodiments. Various specific detailed parts are described in detail in the following detailed descriptions of the present invention. For a person skilled in the art, the present invention can also be fully understood without descriptions of such detailed parts. In order not to complicate the essence of the present invention, detailed narratives of procedures, processes, flow procedures and commonly known elements are not made.

[0010] In the present application, the definition of directions is shown in Figures 1, 2, where the front-rear direction is defined along a direction perpendicular to the mounting plate 4, in which the front panel 51 is located at the front and the rear panel is located at the rear; the longitudinal direction is defined along a direction parallel to the mounting plate, in which the upper air outlet 53 is located above and the lower air outlet 54 is located below. The latitudinal direction is defined along a direction parallel to the mounting plate and perpendicular to the longitudinal direction, where the left-hand direction in Figure 1 is a left side and the right-hand direction is a right side. The side perpendicular to a direction in the principal plane and close to an observer is a left side and the side opposite the left side is a right side.

[0011] The present application designs a scroll fan combination structure of an air conditioning device, comprising a mounting plate 4 and a plurality of scroll fans. The air conditioning device specifically refers to an electrical appliance device such as a vertical air conditioner, a fan and an air filter, which has an air blowing function and is capable of adjusting indoor air parameters. As shown in Figures 1-3, the air conditioning device has a housing 5, above which an upper air outlet 53 is preferably provided at the top; below which a lower air outlet 54 is preferably provided in a seat at the bottom of the housing 5. The housing comprises a front panel 51 and a rear panel 55, between which a hollow chamber is delimited. The hollow chamber is internally provided with a scroll fan combination structure, which mainly consists of a mounting plate 4 and a plurality of scroll fans. Its specific structure will be described in detail later. The scroll fan combination structure is arranged inside said hollow chamber along a longitudinal direction, and the scroll is provided in front of the mounting plate 4 and opposite to a position of the front panel 51. The mounting plate 4 divides the hollow chamber into two independent parts, and a space between a rear side of the mounting plate 4 and the rear panel 55 is formed with an air intake duct 57 communicating with an air intake grill located on the rear panel 55. As a preferable solution, the air intake duct 57 is further internally provided with a heat exchange mechanism, such as an evaporator. The space between a front side of the mounting plate 4 and the front panel 51 forms a main body air duct 56 of the air conditioning device, main body air duct 56 respectively communicating with the upper air outlet 53 and the lower air outlet 54. In a position corresponding to a volute mounting position, the mounting plate 4 is provided with a mounting plate air inlet, the position of which is opposite to that of the volute air inlet. scroll. The volute air outlet communicates with the main body air duct 56. When the air conditioning device works, the air enters the air intake duct 57 after passing through the air intake grille. air in the rear panel 55, then enters the volute air outlet through a mounting plate air inlet, it is transported to the main body air duct 56 through the volute air outlet after accelerated by a volute fan centrifugal fan, then it can descend inside the main body 56 to be blown out from the lower air outlet 54 and/or rise to be blown out from the upper air outlet 53.

[0012] The volute fan combination structure of the present application comprises a mounting plate and at least three volute fans mounted on a front side face of the mounting plate, the at least three volute fans comprise a fan of upper volute located above and provided with an air outlet that blows air upwards, and a lower volute fan located below and provided with an air outlet that blows air downwards, and further comprising at least one intermediate volute fan between the upper volute fan and the lower volute fan. The at least one intermediate fan comprises at least one bidirectional scroll fan having a bidirectional air outlet that blows air up and down at the same time, and said bidirectional air outlet and the scroll fan adjacent to said scroll fan bidirectional are staggered in a front-rear direction. The at least one intermediate scroll fan may be a combination of a bidirectional scroll fan and a unidirectional blowing scroll fan, and may also be fully bidirectional scroll fans. The specific manner in which the bi-directional air blower and the scroll fan adjacent to said bi-directional scroll fan are staggered in a front-rear direction can utilize the staggering of the scroll fans in a front-rear direction, providing the output of bidirectional air to blow air at an angle, as well as a combination of the two ways mentioned above. The specific structure can be described in detail below.

[0013] Next, detailed explanations of the scroll fan combination structure of the present application are given by taking Figs. 3-18 as an example. As shown in Figures 5-7, the scroll fan combination structure comprises a mounting plate 4 as well as three scroll fans (hereinafter referred to as fans for short). The three volute fans comprise a first volute fan 1 provided on an upper side of the mounting plate 4, a third volute fan 3 located on a lower side of the mounting plate 4, as well as a second volute fan 2 provided on the mounting plate 4 and located between the first scroll fan 1 and the third scroll fan 3. Between them, the first scroll fan 1 has a first scroll fan air outlet 18 blowing air upwards; the third scroll fan is provided with a third scroll fan air outlet 39 which blows air downwards; the second scroll fan has two air outlets, in which the first air outlet of the second scroll fan 28 is provided to blow air upward, and the second air outlet of the second scroll fan 29 is provided to blow air down. It is necessary to explain that although the mounting plate in the present embodiment is provided in a longitudinal direction and the three scroll fans are also arranged in a longitudinal direction, the technical solution of the present application should not be limited to a mounting plate structure. mounting provided in a longitudinal direction. The mounting plate may use a horizontal layout or a sloped layout. The definitions of longitudinal, latitudinal, and fore-aft mentioned in this text are directions relative to the mounting plate.

[0014] The second scroll fan 2 is disposed between the first scroll fan 1 and the third scroll fan 3, and the air outlet is provided in such a way that it blows air longitudinally. If three fans are mounted on the same plane according to a conventional manner, the volute of the first volute fan 1 and the volute of the third volute fan 3 can form a barrier to the air blowing of the second volute fan, which prevents the air blown by the second scroll fan 2 from entering the main body air duct 56 evenly. Therefore, the three fans are provided to have a staggered structure in space, so that the first air outlet air of the second scroll fan 28 and the second air outlet of the second scroll fan 29 are staggered in space from the positions of the first scroll fan 1 and the third scroll fan 3. The influence on the air blowing of the second scroll fan 2 by the first scroll fan 1 and the third scroll fan 3 is minimized as much as possible; for example, the three fans are staggered in a front-rear direction and/or a latitudinal direction.

[0015] A preferred embodiment, shown in Figure 6, makes use of such that the three fans are staggered forwards and backwards. Specifically, a mounting position of the second scroll fan 2 on the mounting plate 4 is disposed on a front side of a mounting position of the third and third scroll fans, that is, the second scroll fan 2 is disposed on a position that is closer to the main body air duct 56 than a position where the first scroll fan 1 and the third scroll fan 3 are arranged, so that the air blown by the second scroll fan 2 in a longitudinal direction can at least partially prevent disturbance of a scroll of the first scroll fan 1 and a scroll of the third scroll fan 3, so that it is transported through the main body air duct 56 more evenly . Preferably, a mounting position of the second scroll fan 2 on the mounting plate 4 is made to be arranged on a front side of the mounting positions of the second and third scroll fans by changing the shape of the mounting plate 4. As shown in Figures 6-8, the mounting plate has a first fan mounting part 41, a second fan mounting part 42 and a third fan mounting part 43, in which steps are formed between the second fan mounting part 42 and the first fan mounting part 41/third fan mounting part 43, so that the second fan mounting part 42 protrudes in a forward direction towards the front panel 51 with respect to the first fan mounting part 41 and the third fan mounting part 43. In this way, under the circumstance of not changing the conformation of the three fans, it is possible to let a mounting position of the second scroll fan 2 on the mounting plate 4 is located on a front side of the mounting positions of the first and third scroll fans when the three fans are mounted on the mounting plate 4. The advantage of the staggered fore and aft arrangement is only increasing a thickness in a front-rear direction to some extent, not increasing a thickness of the scroll fan assembly in a latitudinal direction, so that there is a very slight influence on the overall size of the air conditioning device. As a preferred manner, the rear walls of the first air outlet of the second scroll fan 28 and the second air outlet of the second scroll fan 29 have an internal surface that can present a plane parallel to the mounting plate, and the extension of the plane does not intersect with the volutes of the first volute fan 1 and the third volute fan 3, respectively. In this way, it can let the air blown by the second scroll fan 2 cannot be blown on the scrolls of the first scroll fan 1 and the third scroll fan 3, and the influence on the air blowing of the second fan of volute 2 by the first fan of volute 1 and the third fan of volute 3 is minimized.

[0016] It is also possible to use it in such a way that the three fans are staggered in a latitudinal direction (not shown in the drawings), that is, the second scroll fan 2 is arranged on a left side or a right side of the first volute fan 1 and the third volute fan 3, which can also reduce the disturbance of the air blowing of the second volute fan by the first volute fan 1 and the third volute fan 3. However, such manner may increase significantly a width of the scroll fan assembly in a latitudinal direction, which is unfavorable to the overall layout of the air conditioning device.

[0017] As another preferred embodiment, the first air outlet of the second volute fan 28 and the second air outlet of the second volute fan 29 of the second volute fan 2 can also be arranged in an inclined manner with respect to the volute of the second scroll fan 2. Consider Figures 3-6, for example, in an actual installed state; the volute of the second volute fan 2 is mounted such that it is substantially parallel to a plane of the second volute fan mounting portion 42 of the mounting plate 4. As shown in Figure 3, the volute plane of the second scroll fan 2 extends substantially along a longitudinal direction. The first air outlet of the second scroll fan 28 and the second air outlet of the second scroll fan 29 are arranged such that they extend in a direction from the mounting plate 4 to the front panel 51 (i.e., a front-rear direction) in a direction away from the scroll. Specifically, the first air outlet of the second scroll fan 28 is arranged to blow air in a forward upward direction, and the second air outlet of the second scroll fan 29 is arranged to blow air in a forward downward direction. With reference Referring to Figures 6, 10, 11, the second scroll fan first air outlet 28 comprises an inner surface 282 of a rear wall of the second scroll fan first air outlet near the second fan mounting portion 42 and an inner surface 281 of a front wall of the first air outlet of the second scroll fan near the front panel 51, the inner surface 281 of a front wall of the first air outlet of the second scroll fan may have a slope or a camber, and the extension 2811 of the tangent of the slope or camber and the plane of the mounting plate 4 has a first slope 01; the inner surface 282 of a rear wall of the first air outlet of the second scroll fan may have a slope or a camber, and the extension 2821 of the slope or camber and the plane of the mounting plate 4 have a second slope 02 The first slope 01 may be the same as or different from the second slope 02 in size. The second scroll fan second air outlet 29 has an inner surface 292 of a rear wall of the second scroll fan second air outlet near the second fan mounting portion 42 and an inner surface 291 of a front wall. of the second air outlet of the second scroll fan near the front panel 51, the inner surface 291 of a front wall of the first air outlet of the second scroll fan may have a slope or a camber, and the tangential direction 2911 of the slope or camber and the plane of the mounting plate 4 have a third slope 03; the inner surface 292 of a rear wall of the second air outlet of the second scroll fan may have a slope or a camber, and the tangential direction 2921 of the camber and the plane of the mounting plate 4 have a fourth slope 04. The third slope 03 can be the same as or different from the fourth slope 04 in size. Preferably, the extension of the slope or the extension 2821 of the camber tangent of the inner surface 282 of the rear wall of the first air outlet of the second volute fan does not intersect the volute of the first volute fan. 1, as shown in Figure 4. The extension of the slope 0 the extension 2921 of the camber tangent of the inner surface 292 of the rear wall of the second air outlet of the second volute fan does not intersect with the volute of the third volute fan 1 (not shown in the drawings). The meaning of non-intersecting specifically means that the portion at the slope extension or camber tangent extension 2821 that overlaps a protrusion of the volute on the locating plate is located forward of the volute in a forward direction. -rear. By such a configuration, it is possible to allow the air blown by the first air outlet of the second scroll fan 28 and the second air outlet of the second scroll fan 29 to not be blown onto the scrolls of the first scroll fan 1 and the second scroll fan. third volute fan 3, in order to reduce the disturbance of the air blowing of the second volute fan 2 by the volutes of the first volute fan 1 and the third volute fan 3.

[0018] As another preferred embodiment, a combination of the aforementioned staggered forms is used. As shown in Figures 3-7, the mounting plate has a first fan mounting part 41, a second fan mounting part 42, and a third volute fan mounting part 43, in which steps are formed. between the second scroll fan mounting part 42 and the first fan mounting part 41/third fan mounting part 43, so that the second fan mounting part 42 protrudes in a forward direction towards the front panel 51 with respect to the first fan mounting part 41 and the third fan mounting part 43. At the same time, the first air outlet of the second scroll fan 28 and the second air outlet of the second scroll fan 29 are They are provided inclined with respect to the volute, that is, they extend in a direction from the mounting plate 4 to the front panel 51 (that is, a front-rear direction) toward a direction from the mounting plate 4 to the front panel 51. away from the volute. Preferably, an extension of the slope or an extension 2821 of the camber tangent of the inner surface 282 of the rear wall of the first air outlet of the second volute fan does not intersect the volute of the first volute fan 1, as shown in Figure 4. An extension of the slope or an extension 2921 of the tangent of the camber of the inner surface 292 of the rear wall of the second air outlet of the second volute fan does not intersect with the volute of the fan. third volute fan 3. Said combination of staggered manners can reduce an increase in a thickness (a front-rear direction) of the volute fan combination structure resulting from staggering in a front-rear direction, and at the same time also can prevent the inclined angles of the first air outlet of the second scroll fan 28 and the second air outlet of the second scroll fan 29 with res relative to the volute are so large that they affect the air blowing of the volute fan, which ensures that there is no significant increase in size in both a thickness (a front-rear direction) and a width (a latitudinal direction) of the volute fan combination structure and facilitates an optimized design of the overall structure of the air conditioning device. At the same time, the air blowing disturbance of the second scroll fan by the first scroll fan and the third scroll fan is also very low, so that the air blown by the three fans is able to move evenly. inside the main body air duct 56.

[0019] As another preferred manner, a baffle may be provided at a first air outlet of the second scroll fan 28 and/or a second air outlet of the second scroll fan 29 inclinedly disposed on the second scroll fan. As shown in Figure 12, an upper baffle 280 is provided at the first air outlet of the second volute fan 28 and a lower baffle 290 is provided at the second air outlet of the second volute fan 29. The upper baffle 280 it is disposed at least on a front wall of the first air outlet of the second scroll fan 28, that is, in a position close to the front panel 51; the lower deflector 290 is arranged at least on a front wall of the second air outlet of the second scroll fan 29, that is, in a position close to the front panel 51. The deflector upper 280 and lower baffle 290 extend substantially such that they are parallel to mounting plate 4 and/or front panel 51, that is, along a longitudinal direction. Preferably, the upper baffle 280 and the lower baffle 290 have a structure of a sleeve which is provided at the first air outlet of the second scroll fan 28 and the second air outlet of the second scroll fan 29, and extends along a substantially longitudinal direction. In this way, the air blown by the upper air outlet 28 and the lower air outlet 29 can enter the main body air duct 56 in a manner substantially parallel to the main body air duct 56 to reduce the disturbance of airflow inside the main body air duct 56 by the reflection airflow of the front panel 51 in order to generate a more uniform airflow inside the main body air duct 56 and reduce power loss. At the same time, if one of the upper air outlet 53 or the lower air outlet 54 is closed, as shown in Fig. 3B, for example, the lower air outlet 54 is closed. At this time, the air blown downward by the second air outlet of the second scroll fan 29 and the air outlet of the third scroll fan 39 returns after moving toward a lower end of the main body air duct 56 and is displaces towards the upper air outlet 53 through the third volute fan 3 and a passage formed between the volute and the front panel 51 of the second volute fan 2. Due to the presence of the lower deflector, the air blown downwards by the lower air outlet 29 is substantially parallel to the main body air duct 56, and the lower reciprocal air, when it passes through the passage between the scroll and the front panel 51 of the second scroll fan 2, can be undisturbed by the air blown from the lower air outlet 29 to be able to ascend evenly. If the lower baffle 290 is not provided, the air blown from the lower air outlet 29 which is inclined downward and forward may cause a barrier for the lower reciprocal air, so that the reciprocal air cannot rise evenly. Similarly, this applies to the upper baffle 280 in such a way that the effect produced by the upper baffle 280 is the same as the effect produced by the lower baffle 290 when the upper air outlet 53 is closed.

[0020] Next, the specific installation manner of the scroll fan assembly is explained with reference to the structures shown in Figs. 7-9. The mounting plate has a first fan mounting part 41, a second fan mounting part 42 and a third fan mounting part 43, which are respectively provided with a first fan mounting face, a second fan mounting face and a third fan mounting face (not shown in the drawings). Among them, the mounting face of the second fan is arranged to protrude in a direction towards the front panel with respect to the mounting face of the first fan and the mounting face of the third fan. A pocket provided at one edge of the first fan mounting face and the third fan mounting face can strengthen the overall strength of the mounting plate and at the same time allow the first fan mounting part 41 and the third fan mounting part 43 form a depression, as shown in Fig. 8. The first fan mounting face, the second fan mounting face and the third fan mounting face 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 Figure 8. The fan scroll consists of two halves, having substantially the same thickness. Preferably, the two halves are formed by sectioning the volute from a center line perpendicular to an axis of the volute, such configuration facilitating the manufacture of halves. Specifically, the first scroll fan 1 includes a first fan rear half 15, a first fan front half 13, a first motor 11 and a first impeller 14. The first fan rear half 15 and the first fan front half 13 constitute the first scroll, the rear half of the first scroll fan 15 opens with a first scroll air inlet, and the first motor 11 and the first impeller 14 are mounted on the front half of the first fan 13. The second scroll fan 2 includes a second fan rear half 25, a second fan front half 23, a second motor 21 and a second impeller 24. The second fan rear half 25 and the second fan front half 23 constitute the second scroll, the second fan half rear of the second fan 25 is opened with a second volute air intake, and the second motor 21 and the second impeller 24 are mounted in the front half of the se second fan 23. The third scroll fan 3 includes a third fan rear half 35, a third fan front half 33, a third motor 31 and a third impeller 34. The third fan rear half 35 and the third fan front half fan 33 constitute the third scroll, the rear half of the third fan 35 is opened with a third scroll air inlet, and the third motor 31 and the third impeller 34 are mounted on the front half of the third fan 33, specifically as shown in Figure 9.

[0021] When the first scroll fan 1, the second scroll fan 2 and the third scroll fan 3 are mounted, respectively, on the first fan mounting part 41, the second fan mounting part 42 and the The third fan mounting face 43, the rear half of the first fan 15, the rear half of the second fan 25 and the rear half of the third fan 35 are respectively attached to a mounting face of the first fan, a mounting face of the second fan and a third fan mounting face of the first fan mounting part 41, the second fan mounting part 42 and the third fan mounting part 43 by means of a connecting part which may be a screw, a bolt, a rivet and the like. As shown in Figure 8B, a 91 screw is used. The first volute air inlet, the second volute air inlet, and the third volute air inlet are, respectively, opposite the first plate air inlet. mounting plate 411, the second mounting plate air inlet 421 and the third mounting plate air inlet 431. As the first fan mounting part 41 and the third fan mounting part 43 form a depression, said first fan rear half 15 and said third fan rear half 35 are embedded in said depression, and the fan rear half 25 is located in the mounting part of the second fan 42 by protruding from the mounting plate 4 The front half of the first fan 13, the front half of the second fan 23 and the front half of the third fan 33 after the corresponding motor and impeller are mounted, are integrally connected to the rear half of the first fan 15, the rear half of the second fan 25 and the rear half of the third fan 35, respectively, so that they further constitute the entire volute fan combination structure, as shown in Figure 9. Compared with a conventional way of mounting a motor to a mounting plate, the motor of the present application is mounted on a volute, and the motor and impeller can be removed together with the volute. a, without the need to remove the mounting plate, thus improving convenience and maintainability throughout the assembly. The specific structure of the scroll motor will be described in detail later.

[0022] Next, the mounting structure of the scroll motor is described in detail by taking the first motor 1 and the mounting plate 4, for example, as shown in Figs. 13-18. In the following descriptions, the axial direction is defined as a direction parallel to an axis of the motor, the radial direction is defined as a direction perpendicular to an axis of the motor, and the circumferential direction is defined as a direction that rotates around an axis of the motor. engine. The term "side" refers to an axial direction of the motor. For example, in Figure 13, the first half 13 (a first fan front half) is located on one side, the second half 15 (a first fan rear half) is located on the other side, and the impeller 14 is located on the other side. located between the first half 13 and the second half 15.

[0023] As shown in Figure 15, when said scroll is viewed from an axial cross-section obtained by cutting the scroll from a plane containing a shaft 111 of the motor, a distance from a peripheral wall of the scroll close to a center line of the scroll in a direction from said axis to said axis is greater than a distance from a peripheral wall of the scroll on both sides on the axis to said axis 111, and the distance is a distance from a center line of the peripheral wall to the axis 144 of the impeller, with a difference of H. Preferably, a distance from an outer wall of a peripheral wall of the volute proximate a centerline 139 of the volute in a direction from said axis 111 to said axis 111 is greater than a distance from an outer wall of a peripheral wall of the volute on both sides at the axis 111 to said axis 111, with a difference of HI (not shown in the drawings). Preferably, the outer wall of a peripheral wall of the volute has a cross section which may be an arc, a trapezoid, a clipped arc, a triangle, or other polygons. Preferably, a distance from an outer wall of a peripheral wall of the volute proximate a center line 139 of the volute in a direction from said axis 111 to said axis 111 is greater than a distance from an outer wall of a peripheral wall of the volute. volute on both sides on the axis 111 to said axis 111, with a difference of HI (not shown in the drawings). Preferably, the outer wall of a peripheral wall of the volute has a cross section which may be an arc, a trapezoid, a clipped arc, a triangle, or other polygons. By designing an outer wall of a peripheral wall of the volute to be an intermediate protruding structure, it can be adapted to different structures of vertical air conditioners which, for example, have a curved housing. In addition, since the peripheral wall of the volute generally has a uniform thickness, the protrusion of the outer wall of the peripheral wall can allow the inner wall of the peripheral wall to also have a protruding structure. By comparing the scrolls whose peripheral wall is perpendicular to the side wall, it is possible to increase a volume inside the scroll and improve the air delivery capacity of the scroll fan.

[0024] In order to facilitate manufacturing, the volute may be provided in a split structure. As shown in Figures 13-15, the volute comprises a first half 13 and a second half 15, the first half 13 comprises a first half peripheral wall 131 and a first half side wall 132, the second half comprises a peripheral wall second half peripheral wall 151 and a second half side wall 152, and the first half peripheral wall 131 and the second half peripheral wall 151 are curved such that they surround a periphery of the impeller 14. The first half peripheral wall 131 comprises a fixed end connected to an edge portion of the first half sidewall 132 and a first connecting end remote from the first half sidewall 132. The second half peripheral wall 151 comprises a fixed end connected to a portion of edge of the second half sidewall 152 and a second connecting end remote from the second half sidewall 152. The first connecting end 1311 of the first peripheral wall mit ad 131 is connected to the second connection end 1511 of the second half peripheral wall 151, so that a receiving cavity is formed within the first half 13 and the second half 15 for receiving the impeller 14, and is formed with a cylindrical shape with a radius that increases along a direction of rotation of the impeller 14 with respect to the axis 111 of the motor.

[0025] The motor 11 of the volute motor in the present embodiment comprises a motor main body 117 and a rotating shaft 112. The impeller 14 which is mounted inside the housing cavity has a cylindrical shape formed in such a way that a A plurality of blades 141 formed elongated in an axial direction of the motor shaft 111 have a radiating shape and are shaped in specific spaces. One end of the blades 141 is mounted on an outer edge portion of a rotating circular plate 142 in a substantially circular shape, and the other end of the blades 141 is mounted on a support ring 143 in an annular shape and is internally formed. with an impeller air inlet. The rotating circular plate 142 is centrally fixed on the rotating shaft 112 of the motor and, under the drive of the motor 11, impeller 14 rotates with rotating shaft 112 as its center. The first half 13 is provided with a motor mounting hole 133, adjacent to which the rotatable circular plate 142 of the impeller is disposed. The rotating shaft 112 of the motor 11 passes through the motor mounting hole and is connected to the rotating circular plate 142 of the impeller 14 to generate the rotation of the rotating circular plate 142. The second half 15 is provided with an air inlet volute 153 corresponding to the impeller air inlet in position to guide air into the impeller 14. The motor main body 117 is supported by the first half 13. A first damping means is provided between the main body motor 117 and the first half 13, and the structure and specific mounting manner of the first damping means will be described in detail below.

[0026] Since the loose volute is made of a plastic material with poor overall strength, when the motor main body 117 is directly mounted to the first half 13, this may result in inadequate strength of the first half 13 to support the engine power, resulting in the first half 13 being deformed or damaged. Therefore, as a preferred embodiment, a support disk 12 is provided which is made of a metallic material. The support disk 12 is fixed on the first half 13, and is preferably fixed on an outer wall of the first half side wall 132 of the first half 13, and the motor main body 117 is fixed on the support disk. 12. Preferably, the motor main body 117 is fixed on a side face of the supporting disc 12 away from the first half 13. By providing the supporting disc 12 it is possible to allow the motor main body 117 to be provided in the volute and be supported by the scroll, and at the same time cannot deform or damage the scroll.

[0027] When a supporting disk 12 is provided, the first damping means may be disposed between the supporting disk 12 and the motor main body 117. The outer wall of the peripheral wall of the motor main body 117 is provided with a flange 133, which is fixed to the support disk 12, and the first damping means is arranged between the flange 133 and the support disk 12. Preferably, the first damping means is a first damping washer arranged between the flange 133 and the support disk 12. As a preferred solution, as shown in Figure 13, the first damping washer 114 is provided with a columnar shape, the outer periphery of the first damping washer 114 with a columnar shape is provided from a socket, and the flange 133 which is like a sheet is inserted into the interior of the first damping washer 114 from said socket. The first cushion washer 114 is provided with a through hole that communicates with a mounting hole of the flange 133. The connecting part, such as a screw and a bolt, after passing through a through hole of the first cushion washer 114 and a flange mounting hole 133 is connected to the support disk 12 so as to be fixed to the motor main body 117. The first cushion washer 113 preferably uses a rubber mount. When a support disk 12 is not provided, the motor 11 can also be directly connected to the first half 13 through the aforementioned damping means to replace the support disk 12 with the first half 13.

[0028] The first half periphery 131 extends from a fixed end to a first connecting end 1311 in a radial direction toward a direction away from the motor shaft 111, and the second half periphery 151 extends from a fixed end to a second connecting end 1511 in a radial direction toward a direction away from the motor shaft 111. Preferably, the connection of the first connection end 1311 of the first half peripheral wall 131 and the second connection end 1511 of the second half peripheral wall 151 is close to the center line 139 of the volute perpendicular to the axis 111 of the motor, o overlaps with the center line 139 of the volute perpendicular to the axis 111 of the motor.

[0029] In order to improve the tightness of the volute, a sealing structure may be provided at the connection of half 13 and second half 15. Preferably, the sealing structure comprises a rib provided at one of the first end of connection 1311 of the first half peripheral wall 131 and second connection end 1511 of the second half peripheral wall 151 and a notch provided in the other of them. Preferably, as shown in Figure 15, the first connecting end of the first half peripheral wall 131 is provided with a rib 1312 extending towards the second half 15, and the second half peripheral wall 151 is provided with a notch 1512 corresponding to the rib 1312. When the first half 13 is connected to the second half 15, the rib 1312 is embedded in the notch 1512, so that it is possible to improve the sealing property of the half and prevent air leakage from the peripheral wall of the volute that reduce the efficiency of the volute fan. The structure of the rib 1312 and the notch 1512 can be provided in only one way and can also be provided in various ways.

[0030] The sealing structure may also use a sealing ring shape by providing a flange on one of the first half 13 and the second half 15, and providing a groove on the other of them. The flange abuts the notch and presses the sealing ring into the notch to seal. The sealing ring can also use rubber or other soft materials. The sealing structure may be provided radially outside or radially inside the peripheral wall of the volute.

[0031] As a preferred embodiment, as shown in Figure 15, the rotating circular plate 142 is arranged such that it protrudes into an interior of the impeller 14 in a direction from the edge to an axial center of the rotating circular plate 142. The rotating circular plate 142 presents substantially a cup shape or a conical shape, and the radial interior of the rotating circular plate 142 forms a motor housing space. The rotating shaft 112 of the motor passes through the volute into its interior and a part of the motor main body 117 can be located within the motor housing space. Thus, the advantages of reducing a length of the motor 11 protruding from an outside of the scroll, reducing a mounting length of the scroll motor in an axial direction, and allowing the overall structure of the scroll fan to be more compact are obtained. Furthermore, the first half side wall 132 of the first half 13 is formed corresponding to an internal recess 1321, the center of which is provided with a motor mounting hole 133. The internal recess 1321 is further arranged to protrude into an interior. of the impeller 14 in a direction from the edge to the axial center of the motor mounting hole 133.

[0032] In order to further reduce the vibration between the motor and the supporting disc, as shown in Figure 17, preferably, the outer wall of the motor main body peripheral wall 117 is provided with a flange 133 , which is fixed to the support disk 12, and a first damping structure is provided between the flange 133 and the support disk 12. Preferably, the first damping structure is a first damping washer disposed between the flange 133 and the disk 12. As a preferred solution, as shown in Fig. 17, the first damping washer 114 is provided with a columnar shape, the outer periphery of the first damping washer 114 with a columnar shape is provided with a socket. , and the sheet-like flange 133 is inserted into the interior of the first damping washer 114 from said socket. The first cushion washer 114 is provided with a through hole that communicates with a mounting hole of the flange 133. The connecting part, such as a screw and a bolt, after passing through a through hole of the first cushion washer 114 and a flange mounting hole 133 is connected to the support disk 12 so as to be fixed to the motor 11. The first cushion washer 113 preferably uses a rubber mount.

[0033] In order to further reduce the vibration between the motor 11 and the impeller 14, as shown in Figure 18, a second damping structure is provided between the rotating shaft 112 of the motor and the rotating circular plate 142 of the motor. impeller 13. Preferably, the second damping structure comprises a rubber sleeve 115 and a metal collar 116; the rubber sleeve 115 is fixed on an outer periphery of the rotating motor shaft 112 to rotate synchronously with the motor shaft 11. The outer periphery of the metal collar is connected to the rotating circular plate 142, and the inner periphery is connected to the rubber sleeve 115. The power of the rotating shaft 112 of the motor is transferred to the rotating circular plate 142 to further drive the rotation of the impeller 14, and the presence of the rubber 115 can effectively reduce the vibration transferred by the motor 11 to the impeller 13 and effectively reduce noise.

[0034] Preferably, to reduce the vibration transferred by the motor main body 117 to the volute 13, a cylindrical support 134 is provided at one edge of the motor mounting hole 133 of the first half 13, and the cylindrical support 134 is internally provided with a through hole communicating with the motor mounting hole 133. As shown in Figure 17, the fixed end of the cylindrical support 134 is connected to the edge of the motor mounting hole 133, and the free end of the Cylindrical support 134 extends on an axis toward a direction away from the center of the scroll. At least a part of the motor main body 117 is located within the cylindrical support 134 so that the rotating shaft 112 of the motor passes through the motor mounting hole 133 and connects to the impeller 14. A third damping structure is provided. between the cylindrical support 134 and an outer wall of the cylindrical wall of the motor main body 117. Preferably, the third damping structure is a second sealing ring 135 provided at one end or an internal wall of the cylindrical support 134. When the motor 11 is located within the cylindrical support 134, a resilient fit is formed between the second sealing ring 135 and the outer wall of the motor main body peripheral wall 117 to reduce vibration transferred by the motor to the volute. At the same time, it is also possible to form a sealing fit to close the motor mounting hole 133 so as to perform sealing on the motor mounting hole 133 and prevent the efficiency of the volute motor from being reduced by oil leakage. air in the motor mounting hole. The second sealing ring 135 can be mounted on the cylindrical support 134 and can also be mounted on an outer periphery of the motor main body 117. Preferably, as shown in Fig. 17, the second sealing ring 135 is provided as a annular structure having a U-shaped cross section, the opening of which is directed towards a free end of the cylindrical support 134 and is mounted on a free end of the cylindrical support 134. The inner peripheral wall of the second sealing ring 135 bears against the outer wall of the peripheral wall of the motor main body 117. Preferably, the inner periphery of the second sealing ring, which is provided with a sealing lip extending towards the motor, may abut against the outer wall of the peripheral wall of the motor main body. motor 117. Preferably, the volute 13 is provided with a mounting seat 136, and the support disc 12 is connected to the mounting disc 136 in a manner so that it can be mounted on the first half 13. The side face of the support disk 12 opposite the cylindrical seat 134 is pressed against the second sealing ring 135 to sandwich the second sealing ring between the support disk 12 and the cylindrical support 134 , to better fix the second sealing ring 135.

[0035] Next, the mounting structure of the scroll motor of the present embodiment is explained. As shown in Figure 14, the volute motor mounting structure of the present embodiment comprises the aforementioned volute fan and mounting plate 4, in which the volute fan is mounted on the mounting plate 4 and the mounting plate is provided with a mounting plate air inlet 41. The second half 15 is fixedly connected to the mounting plate 4 through a fixing element such as a screw, a bolt and a rivet, the volute air inlet 153 on the second half 15 is opposite the mounting plate air inlet 41 on the mounting plate 4 in position, and both the motor 11 and the impeller 14 are mounted on the first half 14. The first half 13 mounted with the motor 11 and the impeller 14 is connected to the second half 15 so that the volute fan is mounted on the mounting plate 4.

[0036] Detailed explanations of the specific assembly manner of the aforementioned scroll fan and mounting plate 4 are given below.

[0037] Fixing the volute fan to the mounting plate 4 comprises the following steps:

Stage I:

[0038] The second half 15 is connected to the mounting plate 4. Preferably, the second half side wall 152 is connected to the mounting plate 4 through a fixing element, and the second half peripheral wall 151 is located on one side of the second half side wall 152 away from the mounting plate 4. The fixing element may use a connecting piece such as a screw and a rivet.

[0039] Stage II: the motor 11 and the driver 14 are connected to the first half 13. There are two specific ways to do it:

1st way:

[0040] The support disc 12 is fixed to the first half 13; the rotating shaft 112 of the motor 11 passes through the motor mounting hole 133 in the first half 13 and fixes the motor 11 on the support disk 12 to fix the motor 11 to the first half 13; and the rotating circular plate 142 of the driver 14 is connected to the rotating shaft 112 of the motor 11 to connect the driver 14 and the motor. 2nd way:

[0041] Motor 11 is connected to support disk 12; the supporting disk 12 together with the motor 11 are fixed to the first half 13 and the rotating shaft 112 of the motor 11 passes through the motor mounting hole 133 in the first half 13; rotating circular plate 142 of impeller 14 connects to rotating shaft 112 of motor 11 to connect impeller 14 and motor 11.

[0042] Stage III: the first half 13 assembled with the motor 11 and the impeller 14 is connected to the second half 15 so that the volute fan is integrally mounted with the mounting plate 4.

[0043] In these steps, the sequence of step I and step II can be interchanged and can also be performed at the same time.

[0044] Compared with the current scroll fan structure, the motor 11 and the impeller 14 of the scroll fan of Embodiment I are fully assembled in the first half 13 and are integrally assembled with the first half 13 after installation, so that the installation is more convenient. When it is necessary to carry out operations such as repair, maintenance and replacement of the motor 11 or the impeller 14, it is only necessary to remove the first half 13 together with the motor 11 and the impeller 14 as a whole, as well as the second half 15. It is necessary remove the second scroll 15 and it is also necessary to remove the mounting plate 4 for better general maintenance.

[0045] Furthermore, one skilled in the art should understand that the drawings provided in this application are for descriptive purposes, and that the drawings are not necessarily drawn according to scale.

[0046] At the same time, it is to be understood that exemplary embodiments are provided, so that the present disclosure is exhaustive and its scope is adequately provided to one skilled in the art. Many specific details (eg, examples of a specific item, device, and method) are provided to provide a thorough understanding of this disclosure. One skilled in the art will understand that specific details need to be used, that the embodiments may be implemented in many different ways, and exemplary embodiments should not be understood to limit the scope of this disclosure. In various exemplary embodiments, there are no detailed descriptions of commonly known device structures or commonly known techniques.

[0047] The foregoing should only be understood as a preferred embodiment of the present invention, which is not used to limit the present invention, and for a person skilled in the art, the present invention may have various modifications and variations. Any amendments, equivalent replacements, improvements and the like are included within the scope of protection of the present invention, which is defined by the following claims.

Claims (9)

1. A vertical air conditioner, comprising: a housing provided with an upper air outlet (53) located in an upper part thereof and a lower air outlet (54) located in a lower part thereof, said housing comprising a front panel (51) and a rear panel ( 55) between which there is delimited a hollow chamber; Y a volute fan combination structure comprising: a mounting plate (4) and at least two adjacent volute fans mounted on said mounting plate (4), wherein one volute fan of the two adjacent volute fans has a intermediate inclined air outlet located between the two adjacent volute fans, said intermediate inclined air outlet extending along a direction away from said mounting plate (4), the volute fan combination structure being disposed within said hollow chamber along a longitudinal direction, a main body air duct (56) being formed between said at least two adjacent scroll fans and said front panel (51), wherein said main body air duct (56) communicates respectively with the upper air outlet (53) and the lower air outlet (54), the vertical air conditioner comprising three volute fans (1, 2, 3), with a third volute fan (3), a second volute fan (2) and a first volute fan (1) provided in an ascending sequence ; characterized in that said second scroll fan (2) comprises second scroll fan air outlets (28, 29) configured to blow air upwards and blow air downwards, said second scroll fan air outlets (28, 29) extending ) along a direction away from said mounting plate (4). The vertical air conditioner according to claim 1, wherein the inner surface adjacent to said mounting plate (4) of said intermediate inclined air outlet represents a slope or camber, where an extension of said slope or an extension of a tangential plane of said camber does not intersect with a scroll of another scroll fan adjacent said intermediate inclined air outlet. 3. The vertical air conditioner according to claim 1, wherein the inner surface adjacent to said mounting plate (4) of said second volute fan air outlets (28,29) represents a slope or camber, where a extension of a corresponding slope or an extension of a tangential plane of a camber does not intersect a volute of the first volute fan or the third volute fan opposite said second volute fan air outlets (28,29). 4. The vertical air conditioner according to claim 1, wherein, said first scroll fan (1) comprises a first scroll fan air outlet (18) configured to blow air upwards; Y said third volute fan (3) comprises a third volute fan air outlet (39) configured to blow air downwards. 5. The vertical air conditioner according to claim 4, wherein, the inner surface (282) adjacent to said mounting plate (4) of said first air outlet of second scroll fan (28) represents a slope or camber, where an extension of said slope or an extension (2821) of a plane tangential of the camber does not intersect with a volute of the first volute fan (1); Y the internal surface (292) adjacent to said mounting plate (4) of said second air outlet of the second volute fan (29) represents a slope or camber, where an extension of said slope or an extension (2921) of a plane camber tangential does not intersect with a volute of the third volute fan (3). 6. The vertical air conditioner according to claim 4, wherein, a first baffle (280) parallel to said mounting plate (4) is provided on at least one wall remote from said mounting plate (4) of said first air outlet of the second scroll fan (28); and/or a second deflector (290) parallel to said mounting plate (4) is provided at least on a wall remote from said second air outlet mounting plate (4) of the second scroll fan (29). The vertical air conditioner according to claim 6, wherein said first baffle (280) comprises an upwardly extending sleeve, and said second baffle (290) comprises a downwardly extending sleeve. The vertical air conditioner according to claim 1, wherein said second scroll fan (2) is further away from said mounting plate (4) than said first scroll fan (1) and said third fan scroll (3). The vertical air conditioner according to claim 8, wherein said mounting plate (4) is provided with a first fan mounting part (41), a second fan mounting part (42) and a fan mounting part (41). third volute fan mounting (43) to respectively mount the first volute fan (1), the second volute fan (2) and the third volute fan (3) correspondingly, and wherein said second fan mounting part is arranged such that it protrudes towards the front of said mounting plate (4) and towards the front of said first fan mounting part (41) and said third fan mounting part fan (43).