CN215983138U - Water storage unit for humidification and air humidification device - Google Patents
Water storage unit for humidification and air humidification device Download PDFInfo
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- CN215983138U CN215983138U CN202121771760.4U CN202121771760U CN215983138U CN 215983138 U CN215983138 U CN 215983138U CN 202121771760 U CN202121771760 U CN 202121771760U CN 215983138 U CN215983138 U CN 215983138U
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Abstract
The utility model relates to a water storage unit for humidification and an air humidification device; the water storage unit for humidification comprises a water tank and a water tank arranged above the water tank, wherein the water tank comprises a water outlet arranged at the bottom of the water tank and positioned in a liquid storage space of the water tank, a water tank cover arranged at the top of the water tank, and a transmission member connected with the water tank cover and the water outlet and driven by the water tank cover to open or close the water outlet. According to the utility model, by arranging the transmission component, a user can selectively fill water into the water tank under the condition that the water tank and the water tank are separated or combined, so that the use convenience of the user is improved.
Description
Technical Field
The utility model relates to the technical field of air humidification, in particular to a water storage unit for humidification and an air humidification device.
Background
In a general household portable air humidifier, a water storage unit for storing a liquid for humidification (e.g., water) is generally provided. For example, in the humidifying device shown in fig. 1, the water storage unit includes a tank 1 for storing water, a tank 2 for receiving water discharged from the tank 1, and a humidifying dial 3 for humidifying water is provided in the tank 2. In the process of the humidifying device, the inside of the box body 1 is in a sealed state, so that the air pressure in the box body 1 is not communicated with the external atmospheric pressure, the water level of the tank body 2 is kept, and the water can be automatically supplemented from the box body 1. However, when the user is to fill water into the tank body 1, the tank body 1 is communicated with the external atmospheric pressure due to the water filling operation, so that the user can fill water into the tank body 1 after separating the tank body 1 from the tank body 2, and the tank body 1 is installed on the tank body 2 again after the water filling is finished.
SUMMERY OF THE UTILITY MODEL
Accordingly, the present invention is directed to a water storage unit for humidification and an air humidification apparatus that overcome the disadvantages and shortcomings of the prior art.
A water storage unit for humidification comprises
A water tank is arranged in the water tank,
locate the water tank of basin top, the water tank includes:
a water outlet arranged at the bottom of the water tank and positioned in the liquid storage space of the water tank,
a water tank cover arranged at the top of the water tank,
it is characterized in that the preparation method is characterized in that,
the water outlet device is also provided with a transmission member, the transmission member is connected with the water tank cover and the water outlet and is driven by the water tank cover to open or close the water outlet.
Further, the water tank is in a hollow cylindrical shape, and the water tank cover is screwed on the top of the water tank through rotation.
Further, the water tank cover is provided with a water tank cover lug protruding outwards;
the transmission member includes:
a transmission rod arranged along the side wall of the water tank,
the top end of the transmission rod is provided with a transmission inclined plane,
the water tank cover is screwed so that the water tank cover convex block and the transmission inclined plane are contacted with each other and the transmission rod is driven to move.
Further, the transmission inclined surface inclines to the unscrewing direction of the water tank cover along the extending direction of the top end of the transmission rod.
Furthermore, the water tank cover projection is provided with a projection inclined plane, and the projection inclined plane inclines towards the water tank direction and the screwing direction of the water tank cover.
Further, the transmission rod is arranged along the axial direction of the water tank, and the bottom end of the transmission rod is bent towards the inner side of the bottom of the water tank.
Further, the drive link still includes: a support part for supporting the upper part of the body,
the abutting part is arranged at the bottom end of the transmission rod and abuts against the water outlet or a water outlet component for controlling water outlet upwards;
the abutting portion includes:
a support rod protruding upward from the bottom end of the transmission rod,
a water outlet rod supported by the supporting rod,
and the elastic piece is arranged at the top end of the water outlet rod and used for closing the water outlet.
Further, the outside of the water tank is also provided with: a fixing portion surrounding the transmission rod.
Furthermore, the fixing part is a bending sheet,
the bent pieces cross the driving lever from the side of the water tank in a direction perpendicular to the axial direction of the water tank.
The utility model also provides an air humidifying device, which comprises a shell provided with an air outlet and an air inlet,
the housing interior includes:
an air supply unit for supplying air to the air conditioner,
and the water storage unit for humidification as described above,
the water tank comprises: rotary humidifying filter screen
Further, the bottom surface of the water tank and the bottom surface of the housing are flush with each other, and the side surface of the water tank forms a part of the lower end of the side surface of the housing.
According to the water storage unit for humidification and the air humidification device, the transmission component is arranged, so that a user can selectively fill water into the water tank under the condition that the water tank is separated from or combined with the water tank, and the use convenience degree of the user is improved.
For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a humidifying device of the prior art;
fig. 2 is a schematic perspective view of an air humidification apparatus provided in an embodiment of the present invention;
FIG. 3 is a schematic internal view of an air humidification apparatus provided by an embodiment of the present invention;
fig. 4 is a schematic perspective view of a water storage unit for humidification of an air humidification device according to an embodiment of the present invention;
FIG. 5 is a schematic view of an air humidifier apparatus according to an embodiment of the present invention looking down from an oblique lower side to a bottom surface of a water tank;
FIG. 6 is a schematic top view of a tank from an oblique upper side of an air humidification apparatus provided by an embodiment of the present invention;
fig. 7 is a schematic partial cross-sectional view of a humidifying water storage unit provided in an embodiment of the present invention when a tank cover is screwed;
fig. 8 is a schematic partial cross-sectional view of a humidifying water storage unit provided in an embodiment of the present invention when a tank cover is unscrewed;
fig. 9 is a first partial schematic view of a humidifying water storage unit provided in an embodiment of the present invention when a tank cover is unscrewed;
fig. 10 is a second partial schematic view of the humidifying water storage unit provided in the embodiment of the present invention when the tank cover is unscrewed.
In the figure: 1. a box body; 2. a trough body; 3. a humidifying rotary table; 10. a housing; 11. an air inlet; 12. an air outlet; 21. a fan; 22. a volute; 30. a water tank; 40. a water tank; 41. a bottom surface of the water tank; 411. a water outlet; 42. a top surface of the tank; 43. a side surface of the water tank; 44. a water tank cover; 441. a water tank cover projection; 4411. a bump bevel; 50. humidifying a filter screen; 60. a transmission rod; 61. a transmission bevel; 621. a support rod; 622. a water outlet rod; 623. an elastic member; 70. a fixed part.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "forward," "backward," and the like refer to orientations and positional relationships that are based on the orientation shown in the drawings, are used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application. The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first", "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.
It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "hollow" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Next, the structure of the air humidifier will be described with reference to fig. 2 and 3. Fig. 2 is a schematic perspective view of an air humidification apparatus provided in an embodiment of the present invention; fig. 3 is a schematic internal view of an air humidification apparatus according to an embodiment of the present invention.
Referring to fig. 2, the air humidifying device includes: a housing 10.
The housing 10 forms the overall outline of the air humidifying device. In the present embodiment, the housing 10 has a three-dimensional box-shaped structure formed by surrounding six surfaces. Specifically, the housing 10 is formed in a rectangular parallelepiped structure formed by six planes, and the housing 10 is provided with an air inlet 11 and an air outlet 12.
The air inlet 11 is an opening provided in the housing 10 for allowing air in the space outside the housing 10 to enter the inside of the housing 10, and is located on one of six surfaces forming the housing 10, for example, on the front surface of the housing 10 in the present embodiment. Typically, the intake vent 11 is provided with a protective mechanism such as a grill, and an air filtering mechanism such as an air filter screen is provided on the proximate downstream side of the intake vent 11.
The outlet 12 is an opening provided in the casing 10 for discharging air inside the casing 10 into a space outside the casing 10, and is located on one of six faces forming the casing 10, for example, on the top face of the casing 10 in the present embodiment. Typically, the outlet 12 is provided with a protective means, such as a grille, and an air filtering means, such as an air screen, is provided on the immediately upstream side of the outlet 12.
In addition, the housing 10 is usually provided with a design such as a control panel, a display panel, etc., and those skilled in the art can easily design the housing according to the product requirements, and the housing 10 is not developed since it is not the main feature of the present invention.
Referring to fig. 3, the air humidifying device internally includes: the air supply unit and the water storage unit for humidification.
The air supply unit is used for driving the air flow in the housing 10, and includes a fan 21, a motor (not shown) for driving the fan 21 to operate, and a volute 22 disposed outside the fan 21. In an embodiment of the utility model, the fan 21 is a sirocco multi-bladed centrifugal fan 21. As shown in fig. 3, the air blowing unit is provided at an airflow downstream side near an air inlet 11 that sucks air and at an airflow upstream side near an air outlet 12 that discharges air. It should be noted here that the number, the position relationship, the arrangement structure, the type, and the like of the fans 21 are not limited to this, and may be designed and adjusted as needed, and are not described herein again.
The humidification water storage unit is used for storing a humidification liquid (for example, water), and for convenience of reading, the humidification liquid will be described below as "water". Next, the structure of the humidification water storage unit will be described with reference to fig. 4.
Fig. 4 is a schematic perspective view of a water storage unit for humidification of an air humidification device according to an embodiment of the present invention. Specifically, the water storage unit for humidification includes: a water tank 30 and a water tank 40.
The water tank 30 serves to receive and store water injected from the water tank 40 for use by the humidifying mechanism. In the present embodiment, the water tank 30 is roughly a pentahedral container structure with an opening on the top surface, specifically, a hollow rectangular parallelepiped structure container with an upward opening. In the present embodiment, the bottom surface of the water tank 30 and the bottom surface of the housing 10 of the air humidifier are formed in the same plane, and the side surface of the water tank 30 forms a part of the lower end of the side surface of the housing 10, so as to save the manufacturing cost.
The water tank 30 is provided with: the screen 50 is humidified. The humidifying filter 50 is a humidifying mechanism that rotates to continuously adsorb water in the water tank 30, thereby humidifying the air flowing therethrough to achieve the effect of humidifying the air. It should be emphasized that the air humidification method is not limited to the humidification screen 50, and in other embodiments, those skilled in the art can easily use other types of humidification mechanisms. Since the features of the present invention are not on the humidifying mechanism, it is not deployed here.
Next, the structure of the water tank 40 will be described with reference to fig. 5 and 6. Fig. 5 is a schematic view of the air humidifier according to the present invention, viewed from the bottom of the water tank. Fig. 6 is a schematic diagram of an air humidification apparatus according to an embodiment of the present invention, in which a top surface of a tank is viewed from an obliquely upper side.
The water tank 40 is used for storing water to supply the water tank 30 for storage to enable the humidifying mechanism to be used, and the water tank 40 has a sufficient volume to reduce the frequency of adding water by a user, thereby improving the convenience of use. The water tank 40 is a hollow cylinder, and the cylindrical water tank 40 is disposed in a vertical direction in an installation state of the air humidifying device. In the present embodiment, the water tank 40 is disposed on one side surface of the housing 10 and spans the side surface, that is, a part of the water tank 40 is located in the housing 10, and another part is located outside the housing 10. The water tank 40 is provided with: tank bottom surface 41, tank top surface 42, and tank side surface 43.
The tank bottom surface 41 is arranged above the water tank 30 and in the reservoir space of the water tank 30, i.e. in the mounted state the level of the tank bottom surface 41 is between the level of the bottom surface and the level of the top surface of the water tank 30. The tank bottom surface 41 is provided with: a water outlet 411.
The water outlet 411 is an opening on the bottom surface 41 of the water tank for allowing water inside the water tank 40 to flow out into the storage space of the water tank 30. The opening and closing of the water outlet 411 is controlled by an elastic member 623 (described later).
The tank top surface 42 is disposed opposite the tank bottom surface 41 and vertically above the tank bottom surface 41. The top surface of the tank is provided with an opening for the user to fill the interior of the tank 40 with water. The tank top surface 42 is closed by screwing the tank lid 44.
The water tank cover 44 is a circular cover covering the top surface 42 of the water tank and is assembled and disassembled on the water tank 40 in a screwing mode, namely, a user can fix the water tank cover 44 on the water tank 40 by rotating the water tank cover in a certain direction and separate the air pressure in the water tank 40 from the external atmospheric pressure; on the contrary, the user can detach and separate the water tank 40 by rotating the water tank cover 44 in the other direction, so that the air pressure inside the water tank 40 is communicated with the external atmospheric pressure, thereby enabling the user to fill the water tank 40 with water from the outside. To achieve a secure screw-on function, the inside of the tank lid 44 is usually provided with a screw thread or the like.
The tank cover 44 is provided with a tank cover projection 441 projecting outward from the edge of the tank cover 44. The tank cover projection 441 is provided with: bump ramp 4411. The cam inclined surface 4411 is inclined in the direction of the water tank 30 and in the tightening direction of the tank cover 44, that is, as shown in fig. 6, the tightening direction of the tank cover 44 is leftward in the drawing, and the water tank 30 is located downward in the drawing, so the cam inclined surface 4411 is inclined downward to the left in the drawing.
The lid projection 441 is used for interlocking with a transmission lever 60 mentioned later, and the interlocking manner will be described later.
The transmission inclined surface 61 is provided at the tip of the transmission lever 60, i.e., at the end close to the tank top surface 42 (tank lid 44), and is inclined in the unscrewing direction of the tank lid 44 along the tip extending direction of the transmission lever 60, in other words, as shown in fig. 6, the unscrewing direction of the tank lid 44 is shown to the right in the drawing, and the tip extending direction of the transmission lever 60 is shown to the upper side in the drawing, so the transmission inclined surface 61 is inclined to the upper right in the drawing. In the transmission state of the transmission rod 60 and the tank cover 44, the cam inclined surface 4411 of the tank cover cam 441 contacts and drives the transmission inclined surface 61 to move, thereby driving the transmission rod 60 to move, which will be described in detail below.
The abutting portion is disposed at the bottom end of the transmission rod 60, i.e. at an end close to the bottom surface 41 of the water tank, and is used for controlling the opening and closing of the water outlet 411, and specifically, the abutting portion is provided with an abutting rod 621, a water outlet rod 622, and an elastic member 623.
The abutting rod 621 protrudes from the end position of the bottom end of the transmission lever 60 toward the water outlet 411, and referring to fig. 5, the abutting rod 621 protrudes upward in the axial direction of the water tank 40.
The water outlet rod 622 is disposed at the water outlet 411 of the water tank 40, and is a rod-shaped structure passing through the water outlet 411, and meanwhile, the bottom of the water outlet rod 622 is opposite to and contactable with the top of the supporting rod 621, so that the supporting rod 621 can support the water outlet rod 622 upwards.
The elastic member 623 is disposed at the top position of the water outlet rod 622, and is made of an elastic material (e.g., rubber) for closing (blocking) or opening the hole-shaped water outlet 411, thereby controlling the water in the water tank 40 to be discharged into the water tank 30. In this embodiment, when the supporting rod 621 upwards supports the water outlet rod 622, the elastic member 623 upwards separates from the water outlet 411 to open the water outlet 411 and discharge water, whereas when the supporting rod 621 does not support the water outlet rod 622, the water outlet rod 622 and the elastic member 623 fall down due to their own gravity and the elastic member 623 falls down to the water outlet 411 to close the water outlet 411 and prevent water in the water tank 40 from being discharged.
The driving lever 60 is provided at an outer side thereof with a fixing portion 70 for fixing a position of the driving lever 60 and allowing the driving lever 60 to move up and down in an axial direction of the water tank 40 within the fixing portion 70. In the present embodiment, the fixing portion 70 is a bent piece that spans the connection rod from the tank side 43 in the direction perpendicular to the axis of the tank 40 and is connected to the inner side of the housing 10, and is fixed to the inner side of the housing 10 by screws.
The operation principle of the humidification water storage unit will be described with reference to fig. 5 to 10. Fig. 7 is a sectional view of the humidification water storage unit shown in fig. 4 taken along line a-a 'and a state diagram of the water tank cover 44 when the water tank cover 44 is twisted, fig. 8 is a sectional view of the humidification water storage unit shown in fig. 4 taken along line a-a' and a state diagram of the water tank cover 44 when the water tank cover 44 is twisted off, and fig. 9 is a first partial view of the humidification water storage unit according to the embodiment of the present invention when the water tank cover 44 is twisted off; fig. 10 is a second partial schematic view of the humidifying water storage unit according to the embodiment of the present invention when the tank cover 44 is unscrewed.
As shown in fig. 5 to 7, in the operation state of the air humidifier, the water tank cover 44 is in a state of tightening the water tank 40, at this time, the protrusion inclined surface 4411 of the water tank cover protrusion 441 contacts and abuts against the transmission inclined surface 61, when the user tightens the water tank cover 44 to the left in the figure, the transmission inclined surface 61 inclined to the right and the user apply a leftward force, and at the same time, the transmission rod 60 can only move upward under the fixing condition of the fixing portion 70, so that the abutting portion connected with the transmission rod 60 is driven to move upward, and the water outlet 411 on the bottom surface of the water tank is opened. After the water outlet 411 is opened, the water in the water tank 40 is injected into the water tank 30 from the water outlet 411 until the water level in the water tank 30 is the same as the horizontal position of the water outlet 411 of the water tank 40, and at this time, because the water tank 40 is in a sealed state, the air pressure in the water tank 40 is isolated from the external atmospheric pressure, and the water tank 40 does not discharge water any more. When the air humidifying device operates and consumes water in the water tank 30, the water level of the water tank 30 drops, and at this time, when the water level of the water tank 30 is lower than the horizontal position of the water outlet 411 of the water tank 40, the water outlet 411 of the water tank 40 is communicated with outside air, that is, air pressure in the water tank 40 is communicated with outside atmospheric pressure, so that the water in the water tank 40 is discharged to the water tank 30 from the water outlet 411, and drainage is realized. By repeating the above-described operations of draining and stopping the drainage, the function of automatically filling the water to the water tank 30 by the water storage unit for humidification is realized until the water in the water tank 40 is completely consumed.
When the water in the water tank 40 is completely consumed, a user can be informed and reminded to fill the device by designing elements such as a water level detection sensor.
As shown in fig. 8 to 10, the user performs the operation of filling the water tank 40 by unscrewing the water tank cover 44 to the right side of the drawing, at this time, the water tank cover projection 441 of the water tank cover 44 is separated from the transmission inclined surface 61, the transmission rod 60 loses the force supported by the transmission inclined surface 61, and under the action of gravity, the transmission rod 60 moves downward, so as to drive the abutting portion connected with the transmission rod 60 to move downward, and at this time, the elastic member 623 of the abutting portion closes the water outlet 411 positioned at the bottom surface of the water tank. Then, the user can completely open the tank cover 44 and directly fill the water into the water tank 40, and since the water outlet 411 is in a closed state, the water inside the water tank 40 cannot be discharged from the water outlet 411 until the water filling of the water tank 40 is completed. Alternatively, the user may lift the entire water tank 40 and then individually take the water tank 40 elsewhere for filling. That is, the user can selectively fill the water tank 40 with water under the condition that the water tank 40 and the water tank 30 are separated or combined, thereby improving the user's convenience.
When the user has filled the water, the water tank cover 44 is screwed down and the water tank 40 is mounted, and the humidifying water storage unit automatically supplies water to the water tank 30 as described above.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (11)
1. A humidifying water storage unit comprising:
a water tank is arranged in the water tank,
locate the water tank of basin top, the water tank includes:
a water outlet arranged at the bottom of the water tank and positioned in the liquid storage space of the water tank,
a water tank cover arranged at the top of the water tank,
it is characterized in that the preparation method is characterized in that,
the water outlet device is also provided with a transmission member, the transmission member is connected with the water tank cover and the water outlet and is driven by the water tank cover to open or close the water outlet.
2. A water storage unit for humidification as claimed in claim 1, wherein the water tank is hollow cylindrical and the water tank cover is screwed to the top of the water tank by rotation.
3. The humidifying water storage unit according to claim 2, wherein the tank cover is provided with a tank cover bump protruding to the outside;
the transmission member includes:
a transmission rod arranged along the side wall of the water tank,
the top end of the transmission rod is provided with a transmission inclined plane,
the water tank cover is screwed so that the water tank cover convex block and the transmission inclined plane are contacted with each other and the transmission rod is driven to move.
4. The humidifying water storage unit according to claim 3, wherein the transmission slope is inclined in a screwing-off direction of the tank cover along an extending direction of a top end of the transmission rod.
5. A water storage unit for humidification as claimed in claim 4, wherein the protrusion of the tank lid is provided with a protrusion slope, the protrusion slope is inclined towards the direction of the water tank and towards the screwing direction of the tank lid.
6. The humidification water storage unit as claimed in claim 3, wherein the transmission rod is arranged along an axial direction of the water tank, and a bottom end of the transmission rod is bent towards an inner side of a bottom of the water tank.
7. The humidifying water storage unit according to claim 6, wherein the transmission rod further comprises: a support part for supporting the upper part of the body,
the abutting part is arranged at the bottom end of the transmission rod and abuts against the water outlet or a water outlet component for controlling water outlet upwards;
the abutting portion includes:
a support rod protruding upward from the bottom end of the transmission rod,
a water outlet rod supported by the supporting rod,
and the elastic piece is arranged at the top end of the water outlet rod and used for closing the water outlet.
8. The water storage unit for humidification as claimed in claim 6, wherein the water tank is further provided with: a fixing portion surrounding the transmission rod.
9. The humidifying water storage unit of claim 8, wherein the fixing portion is a bent piece,
the bent pieces cross the driving lever from the side of the water tank in a direction perpendicular to the axial direction of the water tank.
10. An air humidifying device, comprising:
a shell provided with an air outlet and an air inlet,
the housing interior includes:
an air supply unit for supplying air to the air conditioner,
and the humidifying water storage unit as defined in any one of claims 1 to 9,
the water tank comprises: rotation type humidification filter screen.
11. The air humidification device according to claim 10, wherein a bottom surface of the water tank and a bottom surface of the housing are flush with each other, and a side surface of the water tank forms a part of a lower end of a side surface of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121771760.4U CN215983138U (en) | 2021-07-30 | 2021-07-30 | Water storage unit for humidification and air humidification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121771760.4U CN215983138U (en) | 2021-07-30 | 2021-07-30 | Water storage unit for humidification and air humidification device |
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| Publication Number | Publication Date |
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| CN215983138U true CN215983138U (en) | 2022-03-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738877A (en) * | 2022-04-29 | 2022-07-12 | 青岛海信日立空调***有限公司 | Humidifying equipment |
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2021
- 2021-07-30 CN CN202121771760.4U patent/CN215983138U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738877A (en) * | 2022-04-29 | 2022-07-12 | 青岛海信日立空调***有限公司 | Humidifying equipment |
| CN114738877B (en) * | 2022-04-29 | 2023-08-08 | 青岛海信日立空调***有限公司 | Humidification apparatus |
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