Waterless humidification device and air conditioner

Abstract

The embodiment of the present application provides a waterless humidifying device and an air conditioner, and relates to the technical field of air conditioners. The waterless humidifying device provided by the embodiment of the present application uses a double-shaft fan. Since a double-shaft motor is used in the double-shaft fan to simultaneously drive the first impeller and the second impeller to rotate, so as to form a first air path and a second air path, compared with the prior art in which two fans are used to form two air paths, the embodiment forms two air paths through one double-shaft fan, and the structure is more compact and occupies less space. The air conditioner provided by the embodiment of the present application comprises the waterless humidifying device, and therefore also has the characteristics of compact structure and small space occupation.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, in particular, relates to a waterless humidifying device and air conditioner. BACKGROUND

[0002] At present, there are air conditioners on the market that realize waterless humidification function through a waterless humidifying device. The existing waterless humidifying device includes two fans, a humidifying runner, a heating element, etc. The principle is that the first impeller forms a first air path, the first air path is "outdoor-outdoor", and one area of the humidifying runner is arranged in the first air path, so it can absorb the moisture in the outdoor air. The second fan forms a second air path, the second air path is "outdoor-indoor", and the other part of the humidifying runner and the heating element are arranged in the second air path, and the hot air carries away the moisture adsorbed on the humidifying runner when passing through the humidifying runner, and pours into the indoor environment to realize humidification. In the current technology, since two independent fans are used, the structure is not compact enough and occupies a large space. SUMMARY

[0003] The problem solved by the present application is that the existing waterless humidifying device is not compact enough and occupies a large space.

[0004] To solve the above problems, in a first aspect, the present application provides a waterless humidifying device, comprising a double-shaft fan, a runner box, a humidifying runner, a runner driving element and a heating element, the double-shaft fan comprising a volute, a first impeller, a second impeller and a double-shaft motor arranged in the volute, the first impeller and the second impeller are both centrifugal impellers and the air inlet sides of the two impellers are opposite to each other, the outlet of the volute is communicated with the runner box, the double-shaft motor is used to drive the first impeller and the second impeller to rotate to form a first air path and a second air path respectively, the runner box is provided with an indoor air outlet and an outdoor air outlet, the first air path is sent out from the outdoor air outlet, the second air path is sent out from the indoor air outlet, a part of the humidifying runner is located in the first air path, and another part of the humidifying runner is located in the second air path, the heating element is arranged in the second air path and located upstream of the humidifying runner, and the runner driving element is used to drive the humidifying runner to rotate.

[0005] In the embodiment of the present application, since one double-shaft motor in the double-shaft fan is used to drive the first impeller and the second impeller to rotate at the same time to form the first air path and the second air path, compared with the two fans used in the prior art to form two air paths, the embodiment forms two air paths by one double-shaft fan, the structure is more compact and occupies a smaller space.

[0006] In an optional embodiment, the first impeller and the second impeller are coaxially arranged, the first impeller and the second impeller are both centrifugal impellers, the air inlet sides of the first impeller and the second impeller are opposite to each other, and the axis of the humidifying runner is perpendicular to the axes of the first impeller and the second impeller. In this embodiment, the centrifugal impeller has the characteristics of axial air inlet and radial air outlet. Since the air flow needs to pass through the humidifying runner in the axial direction of the humidifying runner to effectively absorb moisture or dehumidify, the first impeller and the second impeller are arranged on one side of the humidifying runner in the axial direction, so that the first impeller and the second impeller can blow air radially towards the humidifying runner.

[0007] In an optional embodiment, the first inlet and the second inlet are arranged on opposite sides of the volute, the first inlet corresponds to the air inlet side of the first impeller, the second inlet corresponds to the air inlet side of the second impeller, the first waterless humidifying device further comprises a wind collecting box, a part of the double-shaft fan is accommodated in the wind collecting box, an outdoor air inlet is arranged on the wind collecting box, and the outdoor air inlet is in communication with the first inlet and the second inlet through the inner cavity of the wind collecting box. In this embodiment, the first inlet and the second inlet are arranged on opposite sides of the volute, and both the first inlet and the second inlet need to be in communication with the outdoor. In this embodiment, the outdoor air inlet is formed by the wind collecting box, so that the first inlet and the second inlet can be in communication with the outdoor through one outdoor air inlet. Compared with the case where pipelines are separately arranged on the first inlet and the second inlet to be in communication with the outdoor, the arrangement of the wind collecting box in this embodiment makes the entire device more compact, stable and reliable.

[0008] In an optional embodiment, a filter assembly is arranged in the wind collecting box, and the filter assembly is used for filtering the air entering the outdoor air inlet. Since the waterless humidifying device introduces outdoor air into the indoor, and the air flow introduced into the waterless humidifying device passes through the humidifying runner, the filter assembly can effectively purify the air entering the indoor, and can also prevent the humidifying runner from being blocked by impurities in the air, thereby affecting the air volume.

[0009] In an optional embodiment, the inner cavity of the wind collecting box comprises a shunt cavity and a filter cavity located upstream of the shunt cavity, the outdoor air inlet is arranged on the side wall of the filter cavity, the filter assembly is arranged in the filter cavity, and the double-shaft fan is arranged in the shunt cavity. The air entering the shunt cavity from the filter cavity is shunted into the first air path and the second air path. In this embodiment, by arranging the filter assembly upstream of the first air path and the second air path, all the air flow passing through the humidifying runner can be filtered and purified.

[0010] In an optional embodiment, the filter cavity is arranged on the air inlet side of the first impeller.

[0011] In an optional embodiment, the double-shaft fan comprises a split baffle, a part of the split baffle is located in the volute and separates the first impeller and the second impeller on opposite sides of the split baffle, another part of the split baffle extends from the outlet of the volute into the runner box to separate the first air path and the second air path entering the runner box, and the heating member is located on the side of the split baffle facing the second air path. In the embodiment, the first air path is used to bring moisture to the humidifying runner to make the humidifying runner absorb moisture, and the second air path is used to take moisture away from the humidifying runner and send it into the room. In the embodiment, by arranging the split baffle, the first air path and the second air path can be effectively separated before entering the runner box and reaching the humidifying runner after being sent out of the volute, so as to avoid the air flow of the two air paths from converging or intermingling. This is conducive to ensuring that the first air path and the second air path accurately pass through different areas of the humidifying runner and do not interfere with each other, so that the humidifying effect is better. The heating member is located on the side of the split baffle facing the second air path, the air flow of the second air path will be heated by the heating member, the air flow with a higher temperature has a higher saturated vapor pressure, so it can take moisture away from the humidifying runner; the air flow on the other side of the split baffle is away from the heating member and belongs to the first air path, which will not be heated by the heating member, and the cold air has a lower saturated vapor pressure, so the moisture in the first air path tends to be saturated and is easily absorbed by the humidifying runner.

[0012] In an optional embodiment, the double-shaft motor is connected to the split baffle. Since the first impeller and the second impeller are arranged on opposite sides of the split baffle, the double-shaft motor is arranged on the split baffle to drive the two impellers at the same time.

[0013] In an optional embodiment, the runner box comprises a runner shell and an end cover, the runner shell forms a cavity for accommodating the humidifying runner, one end of the runner shell is connected to the volute, and the other end forms an opening, the end cover is detachably connected to the opening of the runner shell, and the indoor air outlet and the outdoor air outlet are arranged on the end cover.

[0014] In an optional embodiment, the runner driving member is arranged on the end cover.

[0015] In an optional embodiment, the runner driving member is arranged on the outer periphery of the end cover, a rack is arranged on the outer periphery of the humidifying runner, and the runner driving member is in transmission connection with the rack. Since the two end faces of the humidifying runner in the axial direction are used for air inlet and air outlet, arranging the driving member on one end of the humidifying runner in the axial direction may interfere with the air path or the humid air may affect the operation of the runner driving member. Therefore, arranging the runner driving member on the outer periphery of the end cover and in transmission connection with the rack on the outer periphery of the humidifying runner can drive the humidifying runner to rotate without affecting the air outlet, and also ensures that the runner driving member has better safety.

[0016] In an optional embodiment, the rotating wheel shell comprises a first half rotating wheel shell and a second half rotating wheel shell, the first half rotating wheel shell and the second half rotating wheel shell are spliced along the radial direction of the humidifying rotating wheel, the volute comprises a first half volute for accommodating the first impeller and a second half volute for accommodating the second impeller, the first half volute is integrally formed with the first half rotating wheel shell, and the second half volute is integrally formed with the second half rotating wheel shell. In this embodiment, by integrally forming the first half volute with the first half rotating wheel shell and integrally forming the second half volute with the second half rotating wheel shell, the number of parts of the shell of the waterless humidifying device is reduced, the assembly efficiency is improved, and the stability of the overall structure is better.

[0017] In a second aspect, the application provides an air conditioner comprising the waterless humidifying device according to any one of the preceding embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a schematic view of a waterless humidifying device according to an embodiment of the application;

[0019] Figure 2 FIG. 2 is an exploded view of the waterless humidifying device according to the embodiment of the application;

[0020] Figure 3 FIG. 3 is a first cross-sectional view of the waterless humidifying device according to the embodiment of the application;

[0021] Figure 4 FIG. 4 is a second cross-sectional view of the waterless humidifying device according to the embodiment of the application;

[0022] Figure 5 FIG. 5 is a schematic view of an end cover of a rotating wheel box according to the embodiment of the application;

[0023] Figure 6 FIG. 6 is a schematic view of an air conditioner according to the embodiment of the application.

[0024] BRIEF DESCRIPTION OF DRAWINGS DETAILED DESCRIPTION

[0025] The existing waterless humidifying device has two independent air ducts, and two air paths are formed in the two air ducts by two fans respectively, which are a first air path and a second air path. The path of the first air path is "outdoor-outdoor", and one area of the humidifying runner is arranged in the first air path, so as to absorb the moisture in the outdoor humid cold air. The path of the second air path is "outdoor-indoor", and the other part of the humidifying runner and the heating member are arranged in the second air path, and the hot air carries away the moisture adsorbed on the humidifying runner when passing through the humidifying runner, and pours into the indoor to realize humidifying the indoor environment. The existing waterless humidifying device has two independent air ducts, two air inlets and two air outlets, and two fans are needed to provide air flow power, which results in high cost and large size of the whole device.

[0026] In order to improve at least one of the above deficiencies in the prior art, the embodiments of the present application provide a waterless humidifying device, which forms a first air path and a second air path by a double-shaft fan. Since one fan can be saved, the cost is lower, and the structure is more compact. The waterless humidifying device is miniaturized while ensuring the humidifying effect, and can be installed in a wall-mounted air conditioner indoor unit. The embodiments of the present application also provide an air conditioner comprising the waterless humidifying device provided by the embodiments of the present application.

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0028] Figure 1 A schematic view of a waterless humidifying device 100 in an embodiment of the present application; Figure 2 A schematic view of a waterless humidifying device 100 in an embodiment of the present application; Figure 3 A first cross-sectional view of a waterless humidifying device 100 in an embodiment of the present application. As Figures 1 to 3As shown, the waterless humidifying device 100 provided by the embodiment of the present application comprises a shell, a double-shaft fan 110, a humidifying runner 150, a runner driving member 160 and a heating member 140. The double-shaft fan 110, the humidifying runner 150 and the heating member 140 are all arranged in the shell, and the runner driving member 160 is used to drive the humidifying runner 150 to rotate. The shell is provided with an indoor air outlet 125 and an outdoor air outlet 124, and the double-shaft fan 110 is used to form a first air path and a second air path. The first air path is sent out from the outdoor air outlet 124, and the second air path is sent out from the indoor air outlet 125. The first air path is used to provide moisture to the humidifying runner 150, so that the humidifying runner 150 absorbs the moisture in the first air path and becomes humid; and the second air path absorbs the moisture from the humidifying runner 150, and then carries the moisture into the indoor environment from the indoor air outlet 125, so as to realize humidification. The heating member 140 is used to heat the airflow in the second air path, so that the airflow in the second air path can have a higher saturated vapor pressure, and is more conducive to absorbing the moisture in the humidifying runner 150.

[0029] Specifically in the embodiment, the shell of the waterless humidifying device 100 comprises a wind collecting box 130 and a runner box 120, the humidifying runner 150 and the heating member 140 are arranged in the runner box 120, a part of the double-shaft fan 110 is arranged in the wind collecting box 130, and the outlet of the double-shaft fan 110 communicates with the runner box 120. The wind collecting box 130 is provided with an outdoor air inlet 131 for communicating with the outdoor environment. Under the driving of the double-shaft fan 110, the airflow in the outdoor environment enters the wind collecting box 130, is sucked into the double-shaft fan 110, and then is sent to the runner box 120. In this process, the first air path and the second air path are formed in the wind collecting box 130 and the runner box 120, and are sent out from the outdoor air outlet 124 and the indoor air outlet 125 respectively. Since the moisture in the humidified gas finally sent into the indoor environment ultimately comes from the outdoor environment, and no water source is arranged to humidify the airflow, this humidification method can also be called "waterless humidification".

[0030] The structure and working principle of each part will be introduced below along the direction of airflow movement. It should be understood that the "upstream", "downstream" and other orientation descriptions mentioned in the embodiment of the present application are based on the movement direction of the airflow in the normal working state, and the direction of the airflow is the upstream direction, and the direction of the airflow is the downstream direction.

[0031] In the embodiment, at least one function of the air collecting box 130 is to form an outdoor air inlet 131 for communicating with the outdoor environment. The gas flowing into the outdoor air inlet 131 is transported to the double-shaft fan 110 in the inner cavity of the air collecting box 130. Since the two impellers of the double-shaft fan 110 in the embodiment have different air inlet directions, and both air inlet sides of the double-shaft fan 110 need to communicate with the outdoor environment, one air collecting box 130 is arranged to communicate the two inlets of the double-shaft fan 110 with the outdoor environment through one outdoor air inlet 131. Compared with separately arranging pipelines for the two inlets of the double-shaft fan 110 to communicate with the outdoor environment, the structure of the embodiment is simpler, and the stability and compactness can be improved.

[0032] In the embodiment, a filter assembly 133 is arranged in the air collecting box 130, and the filter assembly 133 is used to filter the gas entering the outdoor air inlet 131. Since the waterless humidifying device 100 introduces the outdoor air into the indoor environment, and the airflow introduced into the waterless humidifying device 100 passes through the humidifying runner 150, the filter assembly 133 can effectively purify the air entering the indoor environment, and can also avoid the humidifying runner 150 from being blocked by impurities in the air, thereby affecting the air volume.

[0033] Specifically, the inner cavity of the air collecting box 130 includes a shunt cavity 134 and a filter cavity 132 located upstream of the shunt cavity 134, and the outdoor air inlet 131 is arranged on the side wall of the filter cavity 132. The filter assembly 133 is arranged in the filter cavity 132, and the double-shaft fan 110 is arranged in the shunt cavity 134. The gas entering the shunt cavity 134 from the filter cavity 132 is divided into a first air path and a second air path. In the embodiment, by arranging the filter assembly 133 upstream of the first air path and the second air path, all the airflow passing through the humidifying runner 150 can be filtered and purified. The filter assembly 133 can be a HEPA high-efficiency filter screen.

[0034] In the embodiment, the double-shaft fan 110 includes a volute, a first impeller 114, a second impeller 115 and a double-shaft motor 113 arranged in the volute. The first impeller 114 and the second impeller 115 are both centrifugal impellers, and the air inlet sides of the two impellers are opposite to each other. In the embodiment, the centrifugal impeller has the characteristics of axial air inlet and radial air outlet. The double-shaft motor 113 has an output shaft on each of the opposite sides, and the two output shafts are in driving connection with the first impeller 114 and the second impeller 115, respectively. The double-shaft motor 113 is used to drive the first impeller 114 and the second impeller 115 to rotate to form a first air path and a second air path, respectively. The volute is provided with a first inlet and a second inlet on the opposite sides in the axial direction, the first inlet corresponds to the air inlet side of the first impeller 114, and the second inlet corresponds to the air inlet side of the second impeller 115. The volute has an outlet on one side in the radial direction, and the outlet of the volute protrudes out of the air collecting box 130, thereby communicating with the runner box 120.

[0035] In the present embodiment, the first impeller 114 and the second impeller 115 are capable of forming the first air path and the second air path respectively, and both the first air path and the second air path are sent out from the volute outlet and blow to different areas of the humidifying runner 150 respectively. In the present embodiment, the filtering cavity 132 of the air collecting box 130 is arranged at the air inlet side of the first impeller 114, in other words, after the air flow sent from the filtering cavity 132 to the distribution cavity 134 is divided into the first air path and the second air path, the first air path enters the double-shaft fan 110 from the first inlet in the vicinity; while the second air path goes around along the gap between the volute and the inner wall of the air collecting box 130 to the other side of the double-shaft fan 110 and enters the double-shaft fan 110 from the second inlet. In the present embodiment, the filtering cavity 132 is arranged at the air inlet side (i.e. the side facing the first inlet) of the first impeller 114 for the purpose of compact arrangement, in alternative embodiments, the outdoor air inlet 131 and the filtering cavity 132 can also be arranged at other positions of the air collecting box 130.

[0036] Figure 4 FIG. 2 is a second sectional view of the waterless humidifying device 100 according to an embodiment of the present application. Please refer to FIGS. 1 and 2 together. Figure 3 Figure 4 In the present embodiment, the volute comprises a first half volute 111 for accommodating the first impeller 114 and a second half volute 112 for accommodating the second impeller 115, the first inlet is formed on the first half volute 111 and the second inlet is formed on the second half volute 112. The double-shaft fan 110 further comprises a distribution baffle 116, a part of the distribution baffle 116 is located in the volute and separates the first impeller 114 and the second impeller 115 on opposite sides of the distribution baffle 116, and the double-shaft motor 113 is connected to the distribution baffle 116; another part of the distribution baffle 116 extends out of the outlet of the volute into the runner box 120 to separate the first air path and the second air path entering the runner box 120. In the present embodiment, the first air path is used to bring moisture to the humidifying runner 150 so that the humidifying runner 150 absorbs moisture; the second air path is used to take moisture away from the humidifying runner 150 and send it into the room. In the present embodiment, by arranging the distribution baffle 116, the first air path and the second air path can be effectively separated before they are sent out of the volute and enter the runner box 120 and before they reach the humidifying runner 150, so as to avoid the air flows of the two air paths from meeting or intermingling. This is conducive to ensuring that the first air path and the second air path accurately pass through different areas of the humidifying runner 150 without interfering with each other, so that the humidifying effect is better. In the present embodiment, the first half volute 111 and the second half volute 112 can be detachably connected to the distribution baffle 116 through a buckle structure.

[0037] ​In the embodiment, the rotating drum 120 comprises a rotating drum shell and an end cover 123. The rotating drum shell forms a cavity for accommodating the humidifying rotating drum 150, one end of the rotating drum shell is connected with the volute, and the other end forms an opening, and the end cover 123 is detachably connected to the opening of the rotating drum shell. The indoor air outlet 125 and the outdoor air outlet 124 are arranged on the end cover 123, the first air path is sent out from the outdoor air outlet 124, and the second air path is sent out from the indoor air outlet 125. Optionally, the end cover 123 and the rotating drum shell are detachably connected through a buckle structure. In the embodiment, the axis of the humidifying rotating drum 150 is perpendicular to the axis of the double-shaft fan 110, so that one end surface of the humidifying rotating drum 150 can better receive the radial air outlet from the double-shaft fan 110. Part of the humidifying rotating drum 150 is located in the first air path, and part of the humidifying rotating drum 150 is located in the second air path.

[0038] In the embodiment, the rotating drum shell comprises a first half rotating drum shell 121 and a second half rotating drum shell 122, and the first half rotating drum shell 121 and the second half rotating drum shell 122 are spliced along the radial direction of the humidifying rotating drum 150. Specifically, the first half volute 111 of the volute and the first half rotating drum shell 121 of the rotating drum shell are integrally formed, and the second half volute 112 of the volute and the second half rotating drum shell 122 of the rotating drum shell are integrally formed. In the embodiment, by integrally forming the first half volute 111 and the first half rotating drum shell 121, and integrally forming the second half volute 112 and the second half rotating drum shell 122, the number of parts of the shell of the waterless humidifying device 100 is reduced, which is beneficial to improve the assembly efficiency, and the stability of the overall structure is better. Optionally, the first half rotating drum shell 121 and the second half rotating drum shell 122 are detachably connected through a buckle structure.

[0039] In the optional embodiment, the air collecting box 130 can also be provided as two parts spliced together, and part of the air collecting box 130 can also be integrally connected with the part of the volute. As shown in Figure 2 The air collecting box 130 comprises a first air collecting shell 135, a second air collecting shell 136 and a third air collecting shell 137, and the first air collecting shell 135 is integrally connected with the first half volute 111.

[0040] Figure 5 It is a schematic view of the end cover 123 of the rotating drum 120 in an embodiment of the present application. Please refer to Figure 4 and Figure 5In this embodiment, the inner cavity of the humidifying wheel box 120 includes a moisture absorption zone 127 and a dehumidification zone 128, which are arranged circumferentially around the axis of the humidifying wheel 150. A portion of the humidifying wheel 150 is located in the moisture absorption zone 127, and a portion is located in the dehumidification zone 128. When the dual-shaft fan 110 is operating, the first airflow path passes through the moisture absorption zone 127 and through the portion of the humidifying wheel 150 located in the moisture absorption zone 127; while the second airflow path passes through the dehumidification zone 128 and through the portion of the humidifying wheel 150 located in the dehumidification zone 128. It should be understood that the positions of the moisture absorption zone 127 and the dehumidification zone 128 relative to the rotary wheel box 120 are fixed, while the humidifying rotary wheel 150 rotates under the driving force of the rotary wheel drive component 160. Each area on the humidifying rotary wheel 150 alternately passes through the moisture absorption zone 127 and the dehumidification zone 128, thereby absorbing moisture from the first air path at the moisture absorption zone 127, and then supplying the moisture to the airflow in the second air path (which has a high saturated vapor pressure due to its higher temperature) within the humidification zone. Ultimately, the humid and hot air is delivered into the room through the second air path, completing waterless humidification.

[0041] In this embodiment, the heating element 140 is disposed in the second air passage and located upstream of the humidifying impeller 150. Optionally, the heating element 140 is located on the side of the diversion baffle 116 facing the second air passage, used to heat the airflow in the second air passage. With the heating element 140 on the side of the diversion baffle 116 facing the second air passage, the airflow in the second air passage will be heated by the heating element 140. The airflow with a higher temperature has a higher saturated vapor pressure, thus it can remove moisture from the humidifying impeller 150. The airflow on the other side of the diversion baffle 116 is away from the heating element 140 and belongs to the first air passage; it will not be heated by the heating element 140. The cold air has a lower saturated vapor pressure, therefore the moisture in the gas in the first air passage tends to be (or is) saturated and is easily adsorbed by the humidifying impeller 150. In an optional embodiment, the heating assembly may include heating wires, and the second air passage passes through the gaps between the heating wires of the heating assembly to be heated.

[0042] To ensure that the first and second air paths, after passing through the humidifying rotor 150, accurately flow to the outdoor air outlet 124 and the indoor air outlet 125 respectively, in this embodiment, a partition 126 is provided on the inner side of the end cap 123. The two fan-shaped areas divided by the partition 126 correspond to the dehumidification zone 128 and the moisture absorption zone 127 respectively. Figure 5 As can be seen, the dehumidification zone 128 corresponds to the indoor air outlet 125, while the outdoor air outlet 124 is connected to the moisture absorption zone 127.

[0043] In the embodiment, the rotating wheel driving member 160 is arranged on the end cover 123. Specifically, the rotating wheel driving member 160 is arranged on the outer circumferential side of the end cover 123, and the outer circumferential side of the humidifying rotating wheel 150 is provided with a rack, and the rotating wheel driving member 160 is in transmission connection with the rack. Since the two end faces of the humidifying rotating wheel 150 in the axial direction are used for air inlet and air outlet, the driving member arranged at one end of the humidifying rotating wheel 150 in the axial direction may interfere with the air path, or the humid air may affect the operation of the rotating wheel driving member 160. Therefore, the rotating wheel driving member 160 is arranged on the outer circumferential side of the end cover 123 and in transmission connection with the rack on the outer circumferential side of the humidifying rotating wheel 150, so that the humidifying rotating wheel 150 can be driven to rotate without affecting the air outlet, and the safety of the rotating wheel driving member 160 is also ensured.

[0044] The operation principle of the waterless humidifying device 100 in the embodiment is as follows:

[0045] When the waterless humidifying device 100 starts to work, the double-shaft fan 110 rotates, and the rotating wheel driving member 160 drives the humidifying rotating wheel 150 to rotate. Under the action of the double-shaft fan 110, a negative pressure is formed in the air collecting box 130, and outdoor air enters the air collecting box 130 from the outdoor air inlet 131. The airflow first passes through the filtering cavity 132, enters the shunt cavity 134 after being filtered, and is divided into a first air path and a second air path in the shunt cavity 134. The first air path is inhaled into the first impeller 114 of the double-shaft fan 110 in place, and the second air path passes through the inner cavity of the air collecting box 130 and reaches the other side of the double-shaft fan 110 to be inhaled into the second impeller 115 from the second inlet. The airflow of the first air path and the second air path is sent to the rotating wheel box 120 from the outlet of the double-shaft fan 110. Under the action of the shunt baffle 116, the first air path and the second air path are not easy to mix, the airflow of the first air path enters the humidifying area 127 and passes through the part of the humidifying rotating wheel 150 located in the humidifying area 127, and the airflow of the second air path passes through the part of the humidifying rotating wheel 150 located in the dehumidifying area 128 after being heated by the heating member 140. Before passing through the humidifying rotating wheel 150, the air in the first air path and the second air path comes from the same source, which is outdoor air, so the water vapor partial pressure is similar. However, the temperature of the airflow in the first air path is lower, so the saturation vapor pressure is lower, and therefore the moisture in the humid cold airflow in the first air path is more easily absorbed by the humidifying rotating wheel 150. The temperature of the airflow in the second air path is high, and the saturation vapor pressure is also high, so the water vapor partial pressure in the second air path is far from saturation vapor pressure, and therefore the airflow in the second air path has enough ability to absorb moisture from the humid humidifying rotating wheel 150, thereby "dehumidifying" the humidifying rotating wheel 150. After passing through the humidifying rotating wheel 150, the airflow in the first air path becomes dry and cold, and returns to the outdoor environment; and after passing through the humidifying rotating wheel 150, the airflow in the second air path becomes hot and humid, and enters the indoor environment from the indoor air outlet 125.

[0046] The waterless humidifier 100 provided in this embodiment can achieve humidification and fresh air functions. The fan uses a dual-axis fan 110, separating the moisture absorption and dehumidification air paths. The flow rate of the first and second air paths can be adjusted by regulating the thickness of the two impellers, the shape and capacity of the air collection box 130, thereby controlling the humidification amount. The waterless humidifier 100 provided in this embodiment makes full use of space, has a compact structure, and a small size, making it convenient to integrate into an air conditioning indoor unit.

[0047] Figure 6 This is a schematic diagram of an air conditioner 010 in one embodiment of this application. Figure 6 As shown, this application embodiment also provides an air conditioner 010, including an air conditioner body 200 and a waterless humidifier 100 provided in the above embodiments of this application. The air conditioner body 200 includes heat exchange components, air outlet components, and other components for achieving basic temperature regulation functions, while the waterless humidifier 100 is used for humidifying the indoor environment. Since the waterless humidifier 100 provided in this application embodiment does not require manual water addition, and the moisture comes from outdoor air, it can achieve a "waterless humidification" function. A decorative panel can be provided on the exterior of the waterless humidifier 100 to make it more aesthetically pleasing and consistent with the appearance of the air conditioner body 200; for example... Figure 6 In this embodiment, a decorative panel covers the outside of the waterless humidification device 100. In this embodiment, the air conditioner 010 is a wall-mounted indoor unit; in other optional embodiments, the air conditioner 010 may also be a floor-standing unit or other types of air conditioning systems.

[0048] In this embodiment, since the airflow discharged into the room by the waterless humidifier 100 is a humid and hot airflow, it is more suitable to be used simultaneously with the heating function of the air conditioner 200 when the temperature is low. The heat provided by the heating element 140 of the waterless humidifier 100 can be used for the user's heating.

[0049] In summary, the waterless humidifier 100 provided in this application embodiment uses a dual-axis fan 110. Since the dual-axis fan 110 uses a single dual-axis motor 113 to simultaneously drive the first impeller 114 and the second impeller 115 to rotate, forming a first air path and a second air path, compared to the prior art which uses two fans to form two air paths, this embodiment forms two air paths with a single dual-axis fan 110, resulting in a more compact structure and smaller space occupation. The air conditioner 010 provided in this application embodiment includes the aforementioned waterless humidifier 100, and therefore also features a compact structure and small space occupation.

[0050] While this application discloses the above information, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of this application; therefore, the scope of protection of this application shall be determined by the scope defined in the claims.

Claims

1. A waterless humidification device, characterized in that, The device includes a dual-shaft fan (110), a rotor housing (120), a humidifying rotor (150), a rotor drive unit (160), and a heating element (140). The dual-shaft fan (110) includes a volute and a first impeller (114), a second impeller (115), and a dual-shaft motor (113) disposed within the volute. The outlet of the volute is connected to the rotor housing (120). The dual-shaft motor (113) drives the first impeller (114) and the second impeller (115) to rotate to form a first air path and a second air path, respectively. The humidifying wheel (120) is provided with an indoor air outlet (125) and an outdoor air outlet (124). The first air path is sent out from the outdoor air outlet (124), and the second air path is sent out from the indoor air outlet (125). A portion of the humidifying wheel (150) is located in the first air path, and a portion is located in the second air path. The heating element (140) is located in the second air path and upstream of the humidifying wheel (150). The wheel drive (160) is used to drive the humidifying wheel (150) to rotate. The rotor housing (120) includes a rotor housing and an end cap (123). The rotor housing includes a first half-hull housing (121) and a second half-hull housing (122). The rotor housing forms a cavity for accommodating the humidifying rotor (150). One end of the rotor housing is connected to the volute housing, and the other end forms an opening. The end cap (123) is detachably connected to the opening of the rotor housing. The indoor air outlet (125) and the outdoor air outlet (124) are disposed on the end cap (123). The rotary drive (160) is disposed on the outer periphery of the end cover (123), and a rack is disposed on the outer periphery of the humidifying rotary wheel (150). The rotary drive (160) is connected to the rack in a transmission manner.

2. The waterless humidification device according to claim 1, characterized in that, The first impeller (114) and the second impeller (115) are coaxially arranged. Both the first impeller (114) and the second impeller (115) are centrifugal impellers and their air inlet sides are opposite to each other. The axis of the humidifying impeller (150) is perpendicular to the axes of the first impeller (114) and the second impeller (115).

3. The waterless humidification device according to claim 2, characterized in that, The volute has a first inlet and a second inlet on opposite sides. The first inlet corresponds to the air inlet side of the first impeller (114), and the second inlet corresponds to the air inlet side of the second impeller (115). The waterless humidification device (100) also includes an air collection box (130). A part of the dual-axis fan (110) is housed in the air collection box (130). The air collection box (130) has an outdoor air inlet (131). The outdoor air inlet (131) is connected to the first inlet and the second inlet through the inner cavity of the air collection box (130).

4. The waterless humidification device according to claim 3, characterized in that, The air collection box (130) is equipped with a filter assembly (133), which is used to filter the gas entering the outdoor air inlet (131).

5. The waterless humidification device according to claim 4, characterized in that, The inner cavity of the air collection box (130) includes a diversion cavity (134) and a filter cavity (132) located upstream of the diversion cavity (134). The outdoor air inlet (131) is opened on the side wall of the filter cavity (132). The filter assembly (133) is disposed in the filter cavity (132). The dual-axis fan (110) is disposed in the diversion cavity (134). The gas entering the diversion cavity (134) from the filter cavity (132) is diverted into the first air path and the second air path.

6. The waterless humidification device according to claim 5, characterized in that, The filter chamber (132) is located on the air inlet side of the first impeller (114).

7. The waterless humidification device according to any one of claims 1-6, characterized in that, The dual-shaft fan (110) includes a flow divider (116), a portion of which is located inside the volute and separates the first impeller (114) and the second impeller (115) on opposite sides of the flow divider (116). Another portion of the flow divider (116) extends from the outlet of the volute into the impeller box (120) to separate the first air path and the second air path entering the impeller box (120). The heating element (140) is located on the side of the flow divider (116) facing the second air path.

8. The waterless humidification device according to claim 7, characterized in that, The dual-axis motor (113) is connected to the diversion baffle (116).

9. The waterless humidification device according to any one of claims 1-6, characterized in that, The first half-shell (121) and the second half-shell (122) are joined together radially along the humidifying impeller (150). The volute includes a first half-shell (111) for accommodating the first impeller (114) and a second half-shell (112) for accommodating the second impeller (115). The first half-shell (111) is integrally formed with the first half-shell (121), and the second half-shell (112) is integrally formed with the second half-shell (122).

10. An air conditioner, characterized in that, The waterless humidification device (100) includes any one of claims 1-9.

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