CN115944754A - Steam sterilizer - Google Patents

Abstract

The invention discloses a steam sterilizer, which comprises a sterilizing barrel, a steam generating assembly and a hot air drying assembly, wherein the steam generating assembly is arranged on the sterilizing barrel; the steam generating assembly comprises a base embedded at the bottom of the sterilizing barrel and a heating body arranged in the base, wherein the base is provided with an accommodating cavity for containing water, and the heating body can heat the water in the accommodating cavity and form steam to be conveyed into the sterilizing barrel; the hot air drying assembly comprises a fan arranged in the base, a plurality of first air inlet holes formed in the base and an air duct pipe respectively communicating an air outlet of the fan with the accommodating cavity; under the action of the fan, outside air can be sucked and blown to the accommodating cavity through the air duct pipe; the heating body can heat the air in the accommodating cavity and form hot air to be conveyed into the sterilizing barrel. The steam generating assembly and the hot air drying assembly of the steam sterilizer share the heating body, so that the number of parts in a product is reduced, the cost is reduced, and meanwhile, only one heating body needs to be controlled, so that the steam sterilizer is simpler.

Description

Steam sterilizer

Technical Field

The invention relates to the field of infant care product disinfection, in particular to a steam sterilizer.

Background

This section merely provides background information related to the present application so as to enable those skilled in the art to more fully and accurately understand the present application, which is not necessarily prior art.

With the increasing social living standard, people's expectations for children are increasing, and most parents hold the mood of looking across the dragon and the phoenix, and thus take care of infants in a large number and care, and many various infant care tools (such as feeding bottles and the like) are brought to bear.

Most of the existing infant care products are sterilized and dried by a steam sterilizer. Currently, most steam sterilizers on the market are provided with two heating elements, one heating element (such as an electric heating wire) is used for heating water and forming steam for sterilization, and the other heating element (such as a PTC heating plate) is used for heating air and forming hot air for drying. So set up, not only increased the quantity of the inside spare part of product, improved the cost, and need separately control two heat-generating bodies, it is comparatively troublesome.

Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a steam sterilizer with simple structure and convenient control and operation.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the steam sterilizer, the steam generating assembly and the hot air drying assembly of the steam sterilizer share one heating body, so that the number of parts in a product is reduced, the structure of the product is simplified, the cost is reduced, and meanwhile, only one heating body needs to be controlled, so that the steam sterilizer is simpler.

The technical scheme adopted by the invention for solving the problems is as follows:

a steam sterilizer, comprising:

the sterilizing barrel is used for placing articles to be sterilized, and a plurality of first through holes are formed in the bottom of the sterilizing barrel;

the steam generating assembly comprises a base embedded at the bottom of the sterilizing barrel and a heating body arranged in the base, wherein the base is provided with an accommodating cavity for accommodating water, the heating body can heat the water in the accommodating cavity to form steam, and the steam is conveyed into the sterilizing barrel through the first through holes;

the hot air drying assembly comprises a fan arranged in the base, a plurality of first air inlet holes formed in the base and communicated with the air inlet of the fan, and an air duct pipe, one end of the air duct pipe is communicated with the air outlet of the fan, and the other end of the air duct pipe is communicated with the accommodating cavity; under the action of the fan, outside air can be sucked and blown into the accommodating cavity through the air duct pipe; the heating body can heat the air in the accommodating cavity and form hot air, and the hot air is conveyed into the disinfection barrel through the first through holes.

Further, the base comprises a shell and a bottom cover arranged at the bottom of the shell, the upper surface of the shell is recessed to form a groove, and the bottom of the groove is provided with an opening; the heating body is arranged at the opening hole and seals the opening hole to form the accommodating cavity.

Further, the heating body is a microcrystalline plate, and a nanometer heating film is arranged at the bottom of the microcrystalline plate.

The first support is arranged at the bottom of the disinfection barrel and used for covering the top of the groove, an annular first air inlet cavity is formed between the first support and the bottom of the disinfection barrel in an enclosing manner, and an air outlet of the air duct pipe is communicated with the first air inlet cavity; the lateral wall of the first support is provided with a plurality of second air inlet holes which are respectively communicated with the first air inlet cavity and the containing cavity, and the top wall of the first support is provided with a plurality of second through holes corresponding to the first through holes.

Furthermore, the side wall of the groove is arranged in an inclined shape, and the air entering through the second air inlet holes can flow to the heating body under the guidance of the side wall of the groove.

Further, the shell is connected with the bottom cover in an interconnecting mode, a mounting cavity is defined between the shell and the bottom cover, the fan is arranged in the mounting cavity, and the first air inlet holes are formed in the bottom cover and communicated with the mounting cavity.

The heating element is characterized by further comprising a second support arranged in the installation cavity and positioned at the bottom of the heating element, a second air inlet cavity is formed between the second support and the bottom of the heating element in an enclosing mode, and a plurality of third air inlet holes which are respectively communicated with the second air inlet cavity and the installation cavity are annularly arranged on the side wall of the second support; the fan is fixed at the bottom of the second support, and an air inlet of the fan is communicated with the second air inlet cavity.

Further, still including setting up circuit board in the installation cavity and setting are in on the second support and with the temperature probe that the circuit board electricity is connected, temperature probe with the heat-generating body bottom is inconsistent in order to detect the temperature of heat-generating body.

Furthermore, a mounting groove is further annularly formed in the position, located in the opening, of the groove, a bonding piece is arranged in the mounting groove, and the heating body is bonded to the opening through the bonding piece.

Furthermore, the plurality of first through holes comprise a plurality of large holes and small holes, and the positions of the large holes and the small holes are designed by placing the milk bottle at the required position in an inverted manner.

Further, the hole of the large hole is provided with an upper flange along the ring.

Further, still include top cap subassembly, top cap subassembly is including setting up disinfection bucket top just is used for placing the layer frame of treating the disinfection article and the lid closes top cap on the layer frame, set up a plurality of third through-holes that can supply steam and hot-blast passing through on the layer frame, set up on the top cap and supply steam exhaust venthole.

In conclusion, the steam sterilizer provided by the invention has the following beneficial effects:

(1) The steam sterilizer can heat water in the accommodating cavity to form steam under the action of the microcrystal plate, and fumigates products in the sterilizing barrel and the shelf by utilizing the steam to achieve the aim of sterilization; when the upper surface of the microcrystalline plate is free of water, the microcrystalline plate generates heat through low-power dry burning so as to heat air in the accommodating cavity, and hot air generated in the accommodating cavity is blown into the disinfection barrel and the shelf under the action of the fan so as to dry products. Therefore, the steam generating assembly and the hot air drying assembly in the steam sterilizer share the heating body, so that the number of parts in the product is reduced, the product structure is simpler, and the cost is reduced; meanwhile, the product can realize two functions of disinfection and drying only by controlling the microcrystalline plate, and is simple and convenient. In addition, the heating element made of the microcrystal plate has the advantages of low cost, long service life, high heat efficiency, uniform heating and the like.

(2) According to the steam sterilizer, the first support is arranged at the bottom of the sterilizing barrel, and the first support and the bottom of the sterilizing barrel are enclosed to form the annular first air inlet cavity, so that air from the air duct pipe can enter the first air inlet cavity and circularly flow, and then enters the accommodating cavity through the second air inlet holes in the first support; the side wall of the groove is designed to be inclined, so that the air entering through the second air inlet holes can flow to the heating body under the guidance of the side wall of the groove, the air can be sufficiently heated by the heating body and forms hot air, and then the hot air flows upwards and enters the disinfection barrel. Therefore, by designing the first air inlet cavity, the air coming out of the air outlet of the air duct pipe can flow more smoothly, so that the air quantity entering the accommodating cavity is increased; through designing into the recess lateral wall slope form, can play the guide effect and guide its flow direction heat-generating body to the air for the air can be by abundant heating, and then has increaseed hot air volume's production, improves drying efficiency.

(3) According to the steam sterilizer, the second support is arranged in the installation cavity, the second air inlet cavity is formed by enclosing the second support and the bottom of the heating body, and under the action of the fan, air in the installation cavity can enter the second air inlet cavity through the third air inlet holes and radiate the bottom of the microcrystalline plate, so that the heating film is prevented from being burnt out due to overhigh temperature of the microcrystalline plate. Therefore, the heat dissipation of the bottom of the microcrystalline board can be realized by designing the second air inlet cavity, so that the service life of the microcrystalline board is prolonged.

Drawings

FIG. 1 is a schematic view of a steam sterilizer of the present invention;

FIG. 2 is an exploded schematic view of the steam sterilizer of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

FIG. 4 is an exploded view of the sterilization cask and lid assembly of the steam sterilizer of the present invention;

FIG. 5 is an exploded view of a steam generating assembly and a hot air drying assembly in the steam sterilizer of the present invention;

FIG. 6 is a schematic cross-sectional view of the steam sterilizer of the present invention;

fig. 7 is a partially enlarged view of a portion a in fig. 6.

Wherein the reference numerals have the following meanings:

1. a sterilizing barrel; 101. a first through hole; 1011. large pores; 10111. an upper flange; 1012. a small hole; 2. a base; 201. a housing; 2011. a first via hole; 2012. a groove; 20121. mounting grooves; 202. a bottom cover; 2021. a first air inlet hole; 3. a heating element; 4. a first bracket; 401. a second air inlet hole; 402. a second through hole; 403. a second via hole; 5. a fan; 6. an air duct pipe; 7. a second bracket; 701. a third air inlet hole; 702. mounting holes; 703. mounting a column; 8. a circuit board; 9. a temperature probe; 10. a control panel; 11. layering; 1101. a third through hole; 12. a top cover; 1201. and an air outlet.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the modules or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1-7, the invention provides a steam sterilizer, which is mainly used for sterilizing and drying articles such as feeding bottles, feeding bottle accessories, infant tableware, water cups and the like, and comprises a top cover assembly, a sterilizing barrel 1, a steam generating assembly and a hot air drying assembly, wherein the top cover assembly comprises a layer frame 11 arranged at the top of the sterilizing barrel 1 and a top cover 12 covered on the layer frame 11, and the layer frame 11 and the sterilizing barrel 1 can be used for placing infant care products to be sterilized. Specifically, the sterilizing barrel 1 is used for placing infant care products with larger volume such as a feeding bottle, a water cup and the like; the layer rack 11 is used for placing infant care articles with small volume such as tableware, nipples and the like. The steam generating assembly is arranged at the bottom of the sterilizing barrel 1 and is used for generating steam to sterilize the sterilizing barrel 1 and articles in the shelf 11; the hot air drying component is also arranged at the bottom of the sterilizing barrel 1 and is used for generating hot air to dry the sterilizing barrel 1 and articles in the shelf 11. Furthermore, the bottom of the sterilizing barrel 1 is provided with a plurality of first through holes 101 for passing steam and hot air, the shelf 11 is provided with a plurality of third through holes 1101 for passing steam and hot air, and the top cover 12 is provided with an air outlet 1201 for discharging steam.

Referring to fig. 1-7, the steam generating assembly includes a base 2 embedded in the bottom of the sterilizing tub 1 and a heating element 3 disposed in the base 2, the base 2 is provided with a containing cavity for containing water, and the heating element 3 can heat the water in the containing cavity to form steam. Specifically, the base 2 includes a housing 201 and a bottom cover 202 disposed at the bottom of the housing 201, the housing 201 and the bottom cover 202 are connected to each other and define a mounting cavity therein; the upper surface of the casing 201 is recessed to form a groove 2012, the bottom of the groove 2012 is opened with an opening, and the heating element 3 is disposed at the opening and seals the opening to form an accommodating chamber. Preferably, the heating element 3 is a microcrystalline plate, and a nano heating film is printed on the bottom of the microcrystalline plate.

Furthermore, an annular mounting groove 20121 is further formed in the bottom of the opening of the groove 2012, an adhesive member (not shown in the figure) is disposed in the mounting groove 20121, and the microcrystalline plate is adhered to the opening through the adhesive member. Preferably, the mounting groove 20121 is a glue groove, a solid glue is arranged in the glue groove, and the microcrystal plate is glued to the opening through the solid glue.

From this, when steam sterilization is carried out to needs, at first take off disinfection bucket 1 and top cap subassembly to add the pure water toward the holding intracavity, cover disinfection bucket 1 again afterwards and close base 2 on and place top cap subassembly, switch on to the micrite board after that, micrite board radiation goes out infrared ray and produces the heat and heats in order to form steam with the water to the holding intracavity.

Referring to fig. 5-6, the hot air drying assembly includes a fan 5 disposed in the mounting cavity of the base 2, a plurality of first air inlet holes 2021 disposed on the bottom cover 202 and communicated with the mounting cavity, and an air duct 6 having one end communicated with an air outlet of the fan 5 and the other end communicated with the accommodating cavity; the fans 5 and the air duct pipes 6 are arranged in two, and the two fans 5 and the two air duct pipes 6 are arranged at intervals in the left-right direction. Furthermore, a second support 7 connected with the shell 201 and located at the bottom of the microcrystalline plate is further arranged in the mounting cavity, the second support 7 is of a rectangular groove structure, the microcrystalline plate covers the top of the second support 7, a second air inlet cavity is defined between the second support 7 and the second support, and a plurality of third air inlet holes 701 respectively communicating the second air inlet cavity and the mounting cavity are formed in the front side wall and the rear side wall of the second support 7; two mounting holes 702 are further formed in the bottom of the second support 7 at intervals along the left-right direction, the two fans 5 are fixed to the bottom of the second support 7 through the two mounting holes 702 respectively, and air inlets of the two fans 5 are communicated with the second air inlet cavity; the two air duct pipes 6 are respectively arranged on the outer sides of the left and right side walls of the second bracket 7.

From this, after starting fan 5, the installation intracavity is entered into to the outside air accessible a plurality of first inlet 2021 to enter into the second air inlet intracavity through a plurality of third inlet 701 on the second support 7, enter into in the air duct pipe 6 through the air intake of fan 5 afterwards, and finally blow to the holding chamber through air duct pipe 6. In addition, when air enters into the second air inlet cavity through the third air inlet holes 701, the bottom of the microcrystalline plate can be cooled, the microcrystalline plate is prevented from being burnt out due to overhigh temperature, and the service life of the microcrystalline plate is prolonged.

Further, the temperature probe comprises a circuit board 8 arranged in the mounting cavity and a temperature probe 9 electrically connected with the circuit board 8. Specifically, the middle portion of the second bracket 7 is further provided with a convex mounting column 703, the temperature probe 9 is mounted in the mounting column 703, and the temperature probe 9 abuts against the bottom of the microcrystalline board to detect the temperature of the microcrystalline board. Preferably, the temperature probe 9 is an NTC temperature sensor probe.

Therefore, the temperature probe 9 is arranged to detect the temperature of the microcrystalline plate, and whether water is dried and dry burning protection is carried out or not is judged through temperature change. When the upper surface of micrite board does not have water, this micrite board's temperature rises gradually and is detected by temperature probe 9, and temperature probe 9 will detect temperature signal send circuit board 8 on, circuit board 8 control micrite board carries out low power dry combustion method in order to produce the heat afterwards to blow the air to the holding intracavity through fan 5 and heat.

Referring to fig. 3-4 and 6-7, the steam sterilizer further includes a first bracket 4 disposed at the bottom of the sterilizing barrel 1 and covering the top of the groove 2012, a rectangular cavity is upwardly and concavely disposed in the middle of the first bracket 4, the top of the cavity is attached to the bottom of the sterilizing barrel 1 and is provided with a plurality of second through holes 402 corresponding to the plurality of first through holes 101, the outer edge of the first bracket 4 abuts against the inner side wall of the bottom of the sterilizing barrel 1, so that an annular first air inlet cavity is formed by enclosing the first bracket 4 and the bottom of the sterilizing barrel 1, and the air outlet of the air duct pipe 6 is communicated with the first air inlet cavity; a plurality of second air inlet holes 401 respectively communicated with the first air inlet cavity and the accommodating cavity are further annularly arranged on the side wall of the cavity of the first bracket 4.

Therefore, air coming out of the two air duct pipes 6 can enter the first air inlet cavity and circularly flow in the annular first air inlet cavity, and then enters the accommodating cavity through the plurality of second air inlet holes 401 on the first support 4 to be heated.

In this embodiment, a first via 2011 communicating with the air outlet of the duct 6 is disposed on the upper surface of the housing 201 of the base 2, and a second via 403 communicating with the first via 2011 is disposed on the first bracket 4, so that the air outlet of the duct 6 communicates with the first air inlet chamber.

Further, the side wall of the groove 2012 on the casing 201 is disposed in an inclined shape so that the opening of the groove 2012 is gradually reduced from top to bottom along the height direction, and the air entering through the plurality of second air inlet holes 401 can flow to the top of the heating element 3 under the guidance of the side wall of the groove 2012.

From this, through designing into the slope form with recess 2012 lateral walls, can play the guide effect and guide its flow direction heat-generating body 3 to the air for the air can be by abundant heating, and then has increaseed the production of hot-blast volume, has improved drying efficiency.

In this embodiment, the cross section of the groove 2012 is in the shape of an inverted trapezoid.

In addition, a plurality of first through holes 101 arranged at the bottom of the sterilizing barrel 1 comprise a plurality of large holes 1011 and small holes 1012 with different sizes, and the opening positions of the large holes 1011 and the small holes 1012 are designed according to the required positions for placing the feeding bottle upside down, so that the use amount of raw materials at the bottom of the sterilizing barrel 1 is reduced, and steam can smoothly enter the sterilizing barrel 1. In addition, the upper flange 10111 is annularly arranged on the hole edge of the large hole 1011, so that the milk bottle can be prevented from being toppled when being turned upside down, and the milk bottle can be conveniently placed in an upside down mode.

In addition, the front end of the base 2 is also provided with a control panel 10 electrically connected with the circuit board 8, and the control panel 10 is provided with a switch button, a disinfection button, a drying button and an automatic operation button, so that a user can conveniently select and operate the switch button, the disinfection button, the drying button and the automatic operation button.

In conclusion, the steam sterilizer provided by the invention has the following beneficial effects:

the steam sterilizer can heat water in the accommodating cavity to form steam under the action of the microcrystalline board, and fumigates products in the sterilizing barrel 1 and the shelf 11 by utilizing the steam to achieve the aim of sterilization; when the upper surface of the microcrystalline plate is free of water, the microcrystalline plate generates heat through low-power dry burning so as to heat air in the accommodating cavity, and hot air generated in the accommodating cavity is blown to the disinfection barrel 1 and the layer frame 11 under the action of the fan 5 so as to dry products. Therefore, the steam generating assembly and the hot air drying assembly in the steam sterilizer share the heating body 3, so that the number of parts in the product is reduced, the product structure is simpler, and the cost is reduced; simultaneously, this product only needs to control micrite board can realize disinfection and stoving function, and is comparatively simple and convenient. In addition, the heating element 3 made of the microcrystal plate has the advantages of low cost, long service life, high heat efficiency, uniform heating and the like.

The steam sterilizer is characterized in that the first support 4 is arranged at the bottom of the sterilizing barrel 1, and an annular first air inlet cavity is formed by the first support 4 and the bottom of the sterilizing barrel 1 in a surrounding manner, so that air from the air duct pipe 6 can enter the first air inlet cavity to circularly flow, and then enters the accommodating cavity through a plurality of second air inlet holes 401 on the first support 4; by designing the side wall of the groove 2012 to be inclined, the air entering through the second air inlet holes 401 can flow to the heating element 3 under the guidance of the side wall of the groove 2012, so that the air can be sufficiently heated by the heating element 3 and form hot air, and then the hot air flows upwards and enters the sterilizing barrel 1. Therefore, by designing the first air inlet cavity, the air from the air outlet of the air duct pipe 6 can flow more smoothly, and the air quantity entering the accommodating cavity is increased; through designing into the slope form with recess 2012 lateral walls, can play the guide effect and guide its flow direction heat-generating body 3 to the air for the air can be by fully heating, and then has increaseed hot air volume's production, has improved drying efficiency.

And thirdly, the second bracket 7 is arranged in the installation cavity, a second air inlet cavity is enclosed between the second bracket 7 and the bottom of the heating body 3, and under the action of the fan 5, air in the installation cavity can enter the second air inlet cavity through the third air inlet holes 701 and dissipate heat of the bottom of the microcrystalline plate, so that the heating film is prevented from being burned out due to overhigh temperature of the microcrystalline plate. Therefore, the second air inlet cavity is designed, so that the heat dissipation of the bottom of the microcrystalline plate can be realized, and the service life of the microcrystalline plate is prolonged.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced modules or components must be in a particular orientation, constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In addition, in the description of the present invention, "a plurality" or "a plurality" means two or more unless specifically defined otherwise.

The technical means disclosed in the scheme of the invention are not limited to the technical means disclosed in the above embodiments, but also include the technical means formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims (12)

1. A steam sterilizer, comprising:

the sterilizing barrel is used for placing articles to be sterilized, and a plurality of first through holes are formed in the bottom of the sterilizing barrel;

the steam generating assembly comprises a base embedded at the bottom of the sterilizing barrel and a heating body arranged in the base, wherein the base is provided with an accommodating cavity for accommodating water, the heating body can heat the water in the accommodating cavity to form steam, and the steam is conveyed into the sterilizing barrel through the first through holes;

the hot air drying assembly comprises a fan arranged in the base, a plurality of first air inlet holes formed in the base and communicated with the air inlet of the fan, and an air duct pipe, one end of the air duct pipe is communicated with the air outlet of the fan, and the other end of the air duct pipe is communicated with the accommodating cavity; under the action of the fan, outside air can be sucked and blown to the accommodating cavity through the air duct pipe; the heating body can heat the air in the accommodating cavity and form hot air, and the hot air is conveyed into the disinfection barrel through the first through holes.

2. The steam sterilizer of claim 1, wherein the base comprises a housing and a bottom cover disposed at the bottom of the housing, the housing has a recess formed in an upper surface thereof, and the recess has an opening formed at a bottom thereof; the heating body is arranged at the opening hole and seals the opening hole to form the accommodating cavity.

3. The steam sterilizer of claim 2, wherein the heater is a microcrystalline plate, and a nano-heating film is provided on the bottom of the microcrystalline plate.

4. The steam sterilizer of claim 2 or 3, further comprising a first bracket disposed at the bottom of the sterilizing tub and covering the top of the groove, wherein an annular first air inlet chamber is defined between the first bracket and the bottom of the sterilizing tub, and an air outlet of the air duct communicates with the first air inlet chamber; the lateral wall of the first support is provided with a plurality of second air inlet holes which are respectively communicated with the first air inlet cavity and the containing cavity, and the top wall of the first support is provided with a plurality of second through holes corresponding to the first through holes.

5. The steam sterilizer as claimed in claim 4, wherein the side walls of the recess are inclined such that the air introduced through the plurality of second air inlet holes can be guided by the side walls of the recess to the heat generating body.

6. The steam sterilizer of claim 2 or 3, wherein the housing and the bottom cover are connected to each other with a mounting cavity defined therebetween, the fan is disposed in the mounting cavity, and the first air inlet holes are formed in the bottom cover and communicated with the mounting cavity.

7. The steam sterilizer of claim 6, further comprising a second bracket disposed in the mounting chamber and located at the bottom of the heating element, wherein a second air inlet chamber is defined between the second bracket and the bottom of the heating element, and a plurality of third air inlet holes respectively communicating the second air inlet chamber and the mounting chamber are annularly disposed on a side wall of the second bracket; the fan is fixed the bottom of second support just the air intake of fan communicates the second air inlet chamber.

8. The steam sterilizer of claim 7, further comprising a circuit board disposed in the mounting chamber and a temperature probe disposed on the second support and electrically connected to the circuit board, the temperature probe abutting against the bottom of the heat generating body to detect the temperature of the heat generating body.

9. The steam sterilizer as claimed in claim 2 or 3, wherein a mounting groove is further annularly provided at the opening on the groove, an adhesive member is provided in the mounting groove, and the heating element is adhered to the opening through the adhesive member.

10. The steam sterilizer of claim 1, wherein the first plurality of through holes comprise a plurality of large holes and small holes, and the plurality of large holes and the plurality of small holes are formed at positions designed to place the baby bottle in a desired position in an inverted position.

11. The steam sterilizer of claim 10 wherein the large bore is provided with an upper flange along the annulus.

12. The steam sterilizer of claim 1, further comprising a top cover assembly, wherein the top cover assembly comprises a shelf arranged at the top of the sterilizing barrel and used for placing articles to be sterilized and a top cover covering the shelf, the shelf is provided with a plurality of third through holes for steam and hot air to pass through, and the top cover is provided with an air outlet for steam to be discharged.

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