CN115671322A

CN115671322A - Milk warming sterilizer

Info

Publication number: CN115671322A
Application number: CN202211318752.3A
Authority: CN
Inventors: 张泽民; 钟继鑫; 张朴
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-02-03

Abstract

The invention provides a milk warming sterilizer, wherein a hot air generating device is arranged in an accommodating cavity, the hot air generating device comprises a second air inlet corresponding to a first air outlet and a second air outlet corresponding to the first air inlet, and the hot air generating device is used for generating hot air and driving the hot air to flow between the second air inlet and the second air outlet. Hot air can sequentially pass through the second air outlet, the first air inlet, the first air outlet and the second air inlet, and the reciprocating circulation of the hot air in the disinfection cavity and the hot air generating device is realized. In this application, through adopting the internal recycle of wind between sterilizer and hot-blast generating device, can avoid effectively when realizing the disinfection from the outside suction operation of bacterium and dust that the new trend leads to of introducing, stopped secondary pollution completely to realize aseptic stoving.

Description

Milk warming sterilizer

Technical Field

The invention relates to the technical field of milk warming equipment, in particular to a milk warming sterilizer.

Background

The milk mixing sterilizer or the feeding bottle sterilizer is widely applied to the field of infant feeding bottle sterilization, in order to realize sterilization operation in the prior art, steam is generally adopted for sterilization, liquid water is put into equipment, then the liquid water is heated to form high-temperature steam, and the sterilization operation of the feeding bottle and the like is realized through the high-temperature steam.

In the prior art, after the steam sterilization is completed, the feeding bottle and the sterilizer are usually dried by high-temperature air. In order to realize the above operation, an air inlet is usually arranged at the bottom of the sterilizer, and in the process of introducing air, the fan sucks outside air into the air channel through the air inlet, and the outside air is heated by the heating element, blown into the sterilizer and discharged through the air outlet, so that the inside water vapor is taken away, and the drying is realized.

However, in the drying mode, when hot air is introduced and heated, external dust and bacteria are introduced into the sterilizer through the air inlet and act on the feeding bottle in the drying process, and the feeding bottle is secondarily polluted by the dust, bacteria and the like. In order to solve the above problems, a layer of filter screen is usually added at the air inlet in the prior art, and the filter screen can block dust and the like. However, the interception efficiency of the filter screen itself is limited and the filter screen needs to be replaced or cleaned after a period of time, which is relatively inconvenient to operate. More importantly, the mode of adopting the filter screen to realize purification can form the windage, reduces drying efficiency.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects that the prior art prevents external dust and the like from entering the milk warming device through a filter screen, easily forms wind resistance and affects drying efficiency.

To this end, the present invention provides a milk warming sterilizer comprising: the first shell comprises a first upper shell and a first lower shell which are oppositely arranged, an accommodating cavity is arranged in the shell, and the first upper shell is provided with a first air inlet and a first air outlet respectively; the water containing disc is arranged on the first upper shell in a concave shape and is used for realizing water containing operation; the heating disc acts on the position of the water containing disc and is used for heating the water in the water containing area; the sterilizer is arranged at the upper part of the first upper shell, a sterilization cavity is arranged in the sterilizer, and the first air inlet and the first air outlet are respectively communicated with the sterilization cavity; the hot air generating device is arranged in the accommodating cavity and comprises a second air inlet corresponding to the first air outlet and a second air outlet corresponding to the first air inlet, and the hot air generating device is used for generating hot air and driving the hot air to flow between the second air inlet and the second air outlet.

The invention provides a milk warming sterilizer, wherein the hot air generating device comprises: the second shell is provided with a second air inlet and a second air outlet, and a heating cavity is formed in the second shell; the heating body is arranged in the heating cavity; the impeller is arranged in the heating cavity and is suitable for driving the air in the heating cavity to sequentially pass through the second air inlet and the second air outlet; and the power equipment acts on the impeller and is used for driving the impeller to rotate.

The invention provides a milk warming sterilizer, wherein the impeller and the second air inlet are arranged oppositely.

The invention provides a milk warming sterilizer, wherein a second shell comprises a second upper shell and a second lower shell, and an annular sealing ring is clamped between the second upper shell and the second lower shell.

According to the milk warming sterilizer provided by the invention, the power equipment is a motor, the second lower shell is provided with a through hole, an output shaft of the motor is connected with the impeller through the through hole, and a motor sealing structure is arranged between the through hole and the output shaft.

According to the milk warming sterilizer provided by the invention, the heating body is arranged at the downstream of the impeller along the flowing direction of hot air, and the height of the heating cavity corresponding to the heating body is lower than that of the heating cavity corresponding to the impeller.

The invention provides a milk warming sterilizer, wherein a heating element connecting hole is formed in a second lower shell, and a heating element sealing structure is arranged between the heating element connecting hole and a heating element.

The parts of the second air inlet and the second air outlet, which correspond to the first upper shell, are respectively provided with a sealing ring.

According to the milk warming sterilizer provided by the invention, the heating area is arranged on one side of the first upper shell positioned on the sterilizer and is used for placing a kettle.

The technical scheme of the invention has the following advantages:

1. the invention provides a milk warming sterilizer, which comprises: the sterilizer is arranged at the upper part of the first upper shell, a sterilization cavity is arranged in the sterilizer, and the first air inlet and the first air outlet are respectively communicated with the sterilization cavity; the hot air generating device is arranged in the accommodating cavity and comprises a second air inlet corresponding to the first air outlet and a second air outlet corresponding to the first air inlet, and the hot air generating device is used for generating hot air and driving the hot air to flow between the second air inlet and the second air outlet.

Through foretell mode of setting, after hot-blast generating device starts, produce hot-blastly in hot-blast generating device inside earlier, simultaneously, hot-blastly can loop through second air outlet, first air intake, first air outlet and second air intake, realizes hot-blastly in the inside reciprocating cycle of disinfection chamber and hot-blast generating device. In the prior art, it is required to perform heating and sterilizing operations by introducing external wind into the sterilizer. And in this application, through adopting the internal circulation of wind between sterilizer and hot-blast generating device, can avoid effectively introducing the suction operation of bacterium and dust that the new trend leads to from the outside when realizing the disinfection, stopped secondary pollution completely to realize aseptic stoving.

2. The invention provides a milk warming sterilizer, which also comprises: the water containing disc is arranged on the first upper shell in a concave shape and is used for realizing water containing operation; and the heating plate is used at the position of the water containing plate and used for heating the water in the water containing area.

Through the arrangement mode, water in the water containing disc can be heated through the heating disc to form steam, and the disinfection operation of the steam on the feeding bottle in the disinfector is realized. Meanwhile, the formed steam can enter the hot air generating device under the driving of wind, and is secondarily heated under the action of the hot air generating device, so that the square steam can be secondarily heated, superheated steam is formed, and the sterilization operation is effectively ensured.

Meanwhile, after the heating plate and the hot air generating device are started simultaneously, the heating plate and the hot air generating device act together to realize temperature rise, and the required steam amount is reduced at the moment, so that the generation of condensed water is effectively reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a warm milk sterilizer provided in the present invention;

FIG. 2 is an exploded view of the warm milk sterilizer provided by the present invention;

FIG. 3 is a cross-sectional view of a warm milk sanitizer provided in accordance with the present invention;

FIG. 4 is a schematic structural diagram of a hot air generator according to the present invention;

FIG. 5 is a top view of the hot air generator of the present invention;

FIG. 6 isbase:Sub>A cross-sectional view taken along A-A of FIG. 5;

FIG. 7 is a schematic view of the assembly of the annular seal ring provided by the present invention;

FIG. 8 is an assembly view of the motor seal arrangement provided by the present invention;

FIG. 9 is an assembly view schematically showing a sealing structure of a heat generating body according to the present invention;

fig. 10 is a flow chart of the operation of the milk warming sterilizer provided by the present invention.

Description of the reference symbols in the examples:

1. a first housing; 101. a first upper case; 102. a first lower case; 103. a first air inlet; 104. a first air outlet; 2. a sterilizer; 3. a hot air generating device; 301. a second air inlet; 302. a second air outlet; 303. a second upper case; 304. a second lower case; 305. a heating element; 306. an impeller; 307. a power plant; 308. an annular seal ring; 309. a motor sealing structure; 310. a heating body sealing structure; 4. a water containing tray; 5. heating the plate; 6. a seal ring; 7. a water boiling kettle.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Examples

The embodiment provides a milk warming sterilizer which is used for sterilizing common infant tableware, toys and the like such as feeding bottles, nipples, spoons, water bottles, complementary food bowls and the like. Specifically, as shown in fig. 1 to 10, the method includes:

the first casing 1, as shown in fig. 2, includes a first upper casing 101 and a first lower casing 102 which are oppositely arranged, an accommodating cavity is arranged inside the casing, and the first upper casing 101 is provided with a first air inlet 103 and a first air outlet 104 respectively;

the sterilizer 2 is arranged at the upper part of the first upper shell 101, a sterilization cavity is arranged in the sterilizer 2, and the first air inlet 103 and the first air outlet 104 are respectively communicated with the sterilization cavity;

specifically, a housing chamber is formed in the first housing 1 to enable a housing operation for a partial structure. A first air inlet 103 and a first air outlet 104 are formed on the first upper case 101 so as to realize a circulation operation of hot air between the sterilizer 2 and the first case 1. Meanwhile, a temperature sensing bulb is arranged inside the sterilizer 2, and the temperature inside the sterilizer 2 can be detected in real time through the temperature sensing bulb.

Further, sterilizer 2 itself is including barrel and the lid of setting on the barrel, can realize the closed action to the barrel top through the lid. Meanwhile, the cover body is provided with an exhaust port, and substances such as hot air and steam flowing inside the sterilizer 2 flow out of the sterilizer 2 through the exhaust port. In addition, a gravity seat can be arranged at the exhaust port, and when the pressure in the sterilizer 2 is increased, the gravity seat can be opened, so that the exhaust function is realized; when the pressure in the sterilizer 2 is small, the gravity seat blocks the exhaust port by the gravity of the gravity seat, and substances such as external dust and the like cannot flow out through the exhaust port, so that the normal sterilization action in the sterilizer 2 can be ensured.

In this embodiment, the hot air exchange manner between the first air inlet 103, the first air outlet 104 and the sterilizer 2 is not limited, and as an implementation manner, the lower portion of the sterilizer 2 may be limited to be open, at this time, the air of the first air inlet 103 and the first air outlet 104 will directly enter the sterilizer 2, and correspondingly, the first air inlet 103 and the first air outlet 104 are located right below the sterilizer 2; as a variation, air ducts may also be disposed between the first air inlet 103 and the first air outlet 104 and the sterilizer 2, and in this case, the bottom of the sterilizer 2 may not be opened and the circulation of air may be achieved.

As shown in fig. 2, the water tray 4 is arranged on the first upper housing 101 in a concave shape to realize water holding operation; the heating disc 5 acts on the position of the water containing disc 4 and is used for heating the water in the water containing area;

specifically, can place the pure water through setting up flourishing water tray 4 for the later stage forms high-temperature steam and makes preparation, simultaneously in order to realize the heating operation to flourishing water tray 4, sets up heating plate 5 in the outside of flourishing water tray 4, and heating plate 5 self adopts the resistance wire to make, can heat and form vapor to flourishing water tray 4 inside after the resistance wire circular telegram. Specifically, the water tray 4 itself can be made of metal material, such as stainless steel, copper, etc., and the heating tray 5 is connected with a wire to introduce external commercial power.

The hot air generating device 3 is disposed in the accommodating cavity, the hot air generating device 3 includes a second air inlet 301 corresponding to the first air outlet 104, and a second air outlet 302 corresponding to the first air inlet 103, and the hot air generating device 3 is configured to generate hot air and drive the hot air to flow between the second air inlet 301 and the second air outlet 302. As indicated by the arrow a in fig. 3, which gives a schematic view of the flow of hot air between the steriliser 2 and the hot air generating means 3.

Specifically, the hot air generating device 3 can realize heating and driving operations of the air. Cool air enters the inside of the hot air generating device 3 through the second air inlet 301 and is heated, and then is discharged from the second air outlet 302.

In the embodiment, through the combination of the heating plate, the hot air generating device and the water containing plate, the above characteristics are taken as a whole, the water vapor formed by heating in the water containing plate can be guided into the hot air generating device, and further heated through the hot air generating device, so that the superheated steam is formed, the temperature of the superheated steam is high, and the disinfection action can be effectively realized.

Further, the specific structure of the hot air generator 3 is not limited, and in the present embodiment, as shown in fig. 4, the hot air generator 3 includes:

the second housing is provided with a second air inlet 301 and a second air outlet 302, and a heating cavity is formed in the second housing; the heating element 305 is arranged in the heating cavity, the heating element 305 is made of a resistance wire and is connected with an external power supply, and the heating action of the heating element 305 can be realized after the heating element is electrified; the impeller 306 is arranged in the heating cavity and is suitable for driving the air in the heating cavity to sequentially pass through the second air inlet 301 and the second air outlet 302, the impeller 306 is provided with a plurality of blades, after the impeller 306 is started, the blades can drive the air in the heating cavity to flow, and after the air flows through the heating element 305, the heating element 305 can heat the air, so that the preparation and leading-out actions of hot air are realized;

the power device 307 acts on the impeller 306 to drive the impeller 306 to rotate. In this embodiment, the power device 307 may be a motor structure, and an output end of the motor is connected to the impeller 306, so as to rotate the impeller 306. The power equipment 307 may also adopt external power, such as wind power, water conservancy, etc., and at this time, the power equipment 307 is provided with a wind wheel, a water wheel, etc. which interact with substances such as wind, water, etc., so as to effectively utilize the kinetic energy of the flow.

Further, the position of the impeller 306 in the heating cavity is not limited, and as an embodiment, as shown in fig. 5, the impeller 306 is disposed opposite to the second air inlet 301. Alternatively, the impeller 306 itself may be disposed offset from the second air inlet 301.

In this embodiment, after the impeller 306 and the heating element 305 are started, hot air is first generated inside the hot air generating device, and meanwhile, the hot air may sequentially pass through the second air outlet, the first air inlet, the first air outlet, and the second air inlet, so as to realize the reciprocating circulation of the hot air inside the sterilization chamber and the hot air generating device. Compare with common disinfection mode among the prior art, through adopting the internal circulation of wind between sterilizer and hot-blast generating device, can avoid the suction operation of bacterium and dust that the new trend leads to from the outside introduction effectively when realizing the disinfection, stopped secondary pollution completely to realize aseptic stoving.

In this embodiment, in order to avoid effectively that the steam that enters into in the second casing takes place to scatter and disappear, the disinfection operation of influence to feeding bottle etc. still additionally set up a plurality of disinfection structures in this embodiment:

first, as shown in fig. 4, 5, 6, and 7, the second housing includes a second upper housing 303 and a second lower housing 304, and an annular seal 6308 is interposed between the second upper housing 303 and the second lower housing 304. By providing the ring-shaped seal ring 6308, the high-temperature steam in the second casing can be prevented from overflowing through the position of the side wall.

As shown in fig. 5, the second lower case 304 itself is provided in a scroll structure, and the wind generated by the impeller 306 can be transferred to the heat generating body 305 by the above-described arrangement.

Further, as shown in fig. 8, a through hole is provided on the second lower housing 304, an output shaft of the motor is connected to the impeller 306 through the through hole, and a motor sealing structure 309 is provided between the through hole and the output shaft. Through the arrangement mode, the high-temperature steam in the second shell can be prevented from flowing out to the outside through the through holes of the second lower shell 304.

In addition, as shown in fig. 5, in order to ensure the compactness of the second housing, the motor and the like, the heating element 305 is arranged at the downstream of the impeller 306 along the flowing direction of the hot air, namely, the direction from the right to the left in the figure, and the height of the part of the heating cavity corresponding to the heating element 305 is lower than that of the part corresponding to the impeller 306. With the above arrangement, a space for accommodating the motor can be formed below the impeller 306, so that the motor itself does not protrude excessively to the outside of the second lower case 304 after the motor is assembled.

Further, as shown in fig. 9, a heating element 305 connecting hole is provided in the second lower case 304, and a heating element sealing structure 310 is provided between the heating element 305 connecting hole and the heating element 305. Specifically, since the heat generating body 305 itself needs to be provided with a wire to complete the conduction operation of the current, it is necessary to provide a connection hole of the heat generating body 305 on the second lower case 304, and the wire itself is protruded to the outside of the connection hole of the heat generating body 305. Because a certain gap is formed between the connecting hole of the heating body 305 and the heating body 305, in order to prevent high-temperature steam from flowing out through the gap, the heating body sealing structure 310 needs to be arranged, and the middle part of the heating body sealing structure 310 is arranged in a hollow manner, so that a wire can normally pass through the heating body. The outer wall of the heat-generating body sealing structure 310 is provided with the annular groove, so that the heat-generating body sealing structure is stably embedded into the inner wall of the connecting hole of the heat-generating body 305, and shaking is avoided.

Further, in order to ensure that the hot air flowing out through the hot air generating device 3 is dissipated through the first upper housing 101, as shown in fig. 2, sealing rings 6 are respectively disposed between the second air inlet 301 and the first air outlet 104, and between the second air outlet 302 and the first air inlet 103, and the sealing rings 6 are disposed in an annular shape, so that the hot air is effectively gathered between the first upper housing 101 and the second upper housing 303.

In the milk warming sterilizer provided in this embodiment, in addition to the sterilization and drying operations by the sterilizer 2, the water boiling and heat preservation operations can be realized, as shown in fig. 1 to 3, a heating zone is provided on one side of the sterilizer 2 of the first upper housing 101, and the heating zone is used for placing the water boiling kettle 7. The heating area position is provided with heating plate 5, realizes the heating operation to kettle 7 after heating plate 5 starts, is provided with the controller simultaneously on warm milk sterilizer, and the controller self has the function of adjusting the temperature, rising temperature and accuse temperature, can realize rising the temperature to 100 ℃, or can directly be used for the temperature of dashing milk with the temperature stabilization at 45 ℃, 50 ℃ etc..

The working process of the milk warming sterilizer provided in the present embodiment is as follows, as shown in fig. 10:

firstly, a certain amount of clean water is put into the water containing tray 4, the control device is started, the hot air generating device 3 is started, the heating body 305 and the impeller 306 inside the hot air generating device 3 are started, air inside the hot air generating device 3 is heated, and cold air is sucked from the second air inlet 301 and then flows out from the second air outlet 302 and further flows into the sterilizer 2.

And (3) disinfection procedure:

when the temperature sensing bulb detects that the temperature inside the sterilizer rises to 40 ℃, the heating plate 5 is controlled to be started, the heating plate 5 heats the water inside the water containing plate 4 and forms water vapor, and the temperature inside the sterilizer rises rapidly at the moment. Meanwhile, as the hot air generating device 3 continuously introduces the water vapor into the interior of the sterilizer for heating, the water vapor is heated for the second time to form superheated steam (the temperature is more than 100 ℃), the integral temperature of the sterilizer is higher than 100 ℃, the steam lasts for 15 minutes, and the standard of the sterilizer in one star is achieved.

After the heating plate 5 is started, because the water is heated from normal temperature to be boiled to generate steam, a period of time is needed, the water cannot be directly converted into steam, auxiliary heating can be carried out through the hot air generating device 3 in the period of time, and the temperature in the sterilizer is increased to about 55 ℃. After a period of time, the water is boiled and the sterilizer 2 is heated by the steam, at which point a rapid temperature rise phase is initiated. The steam is heated secondarily by the hot air generator 3 to form superheated steam with a temperature exceeding 100 ℃. After about 5 minutes of heating, the sterilizer temperature exceeded 100 ℃ for 15 minutes, which reached the one-star standard for a sterilizer, for a total of about 23 minutes. Compare prior art, singly use the dish that generates heat and produce steam, the temperature can't reach 100 ℃, and the disinfection time is also less than 15 minutes, and the effect of the disinfection procedure that this embodiment provided is more showing.

And (3) disinfection procedure:

after the disinfection is finished, the heating plate 5 stops working, the hot air generating device 3 is continuously opened, and under the high temperature, condensed water in the disinfector can be naturally evaporated, and the temperature in the disinfector slowly reduces along with the time lapse and is finally stabilized at about 70 ℃. Because the condensed water in the sterilizer 2 inside the sterilizer and the feeding bottle is naturally evaporated in a high-temperature environment, the whole sterilization cavity is in a positive pressure state, although the steam outlet is directly communicated with the outside and overflows from the steam outlet of the upper cover of the sterilizer, no outside air enters to cause pollution. After a period of time, the sterilizer is completely dry.

After a period of time, the sterilizer 2 and the feeding bottle are completely dried, and the drying process is completed. Then, the process proceeds to a storage program: the hot air generating device 3 works for 1 minute every 5 minutes, and keeps the inside of the sterilizer 2 and the feeding bottle dry to prevent bacteria from breeding.

It should be noted that, the time and temperature involved in the above working process can be adjusted according to different working conditions, and are not mentioned here.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A milk warming sterilizer, comprising:

the first shell comprises a first upper shell and a first lower shell which are oppositely arranged, an accommodating cavity is arranged in the shell, and the first upper shell is provided with a first air inlet and a first air outlet respectively;

the sterilizer is arranged at the upper part of the first upper shell, a sterilization cavity is arranged in the sterilizer, and the first air inlet and the first air outlet are respectively communicated with the sterilization cavity;

the hot air generating device is arranged in the accommodating cavity and comprises a second air inlet corresponding to the first air outlet and a second air outlet corresponding to the first air inlet, and the hot air generating device is used for generating hot air and driving the hot air to flow between the second air inlet and the second air outlet.

2. The warm-milk sterilizer of claim 1, further comprising:

the water containing disc is arranged on the first upper shell in a concave shape and is used for realizing water containing operation;

and the heating plate is used at the position of the water containing plate and used for heating the water in the water containing area.

3. The warm-milk sterilizer of claim 2, wherein the hot air generating device comprises:

the second shell is provided with a second air inlet and a second air outlet, and a heating cavity is formed in the second shell;

the heating body is arranged in the heating cavity;

the impeller is arranged in the heating cavity and is suitable for driving the air in the heating cavity to sequentially pass through the second air inlet and the second air outlet;

and the power equipment acts on the impeller and is used for driving the impeller to rotate.

4. The warm milk sterilizer of claim 3, wherein the impeller is disposed opposite the second air inlet.

5. The warm milk sterilizer of claim 3, wherein the second housing comprises a second upper housing and a second lower housing with an annular sealing ring interposed therebetween.

6. The warm-milk sterilizer of claim 5, wherein the power equipment is a motor, the second lower shell is provided with a through hole, an output shaft of the motor is connected with the impeller through the through hole, and a motor sealing structure is arranged between the through hole and the output shaft.

7. The warm milk sterilizer of claim 6, wherein the heat generating body is disposed downstream of the impeller in a flow direction of the hot wind, and a height of a portion of the heating chamber corresponding to the heat generating body is lower than a height of a portion corresponding to the impeller.

8. The warm milk sterilizer as claimed in any one of claims 5 to 7, wherein a heating element connecting hole is provided on the second lower case, and a heating element sealing structure is provided between the heating element connecting hole and the heating element.

9. The warm-milk sterilizer of claim 3, wherein sealing rings are respectively arranged at the second air inlet and the second air outlet corresponding to the first upper shell.

10. A warm milk steriliser as claimed in any of claims 3 to 6 wherein the first upper housing is provided with a heating zone on one side of the steriliser, the heating zone being for the placement of a kettle.