JP2007181527A - Bottle heating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a practical bottle heating apparatus capable of heating a feeding bottle or the like to a prescribed temperature and having superior maintenance property and cleanliness. <P>SOLUTION: This bottle heating apparatus comprises: a plurality of heating cylindrical bodies 2 each having a such inside diameter as allowing the insertion/extraction of a bottle 1 in a slide contact therewith or via a slight clearance formed therebetween and composed of a highly thermal conductive material; electric heating bodies 3 producing heat by energization and heating the heating cylindrical bodies 2 respectively; and thermostats 4 each provided in a direct contact with the bottom of a bottle 1 or the bottom part 20 of the heating cylindrical body 2 with which the bottom of the bottle 1 makes contact, detecting the temperature of the bottle 1 or the heating cylindrical body 2, and controlling the energization to the electric body 3 according to the detected temperature to heat the liquid substance in the bottle 1 fitted in the heating cylindrical body 2 to a prescribed temperature. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a bottle heating device.

  As shown in FIG. 1, as a baby bottle heating apparatus for heating a large number of baby bottles A at a time, which has been used in hospitals and the like, as shown in FIG. It is common to store hot water of a certain level and soak baby bottle A in this hot water to warm the milk to a temperature suitable for feeding infants (about 38 to 43 ° C). .

  However, since a hot water temperature of about 45 ° C. is a temperature at which miscellaneous germs are easy to propagate, there is a concern that germs that are particularly susceptible to water-borne infection from the hot water in the tank B may infect infants through the hands of nurses and the like. .

  Therefore, in the conventional baby bottle heating apparatus, the current situation is that it is necessary to take infection prevention measures such as cleaning and sterilizing the inside of the tank B at least once a day to replace hot water, and the maintenance is extremely troublesome. It is. Moreover, as long as water is used, the possibility of waterborne infection cannot be completely denied.

  The present invention has solved the above-mentioned problems, can efficiently heat bottles such as baby bottles without using water, has no fear of water-based infection, and is extremely maintainable and clean. It provides an excellent practical bottle heating device.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A bottle heating apparatus for taking out a bottle 1 containing a liquid material by heating to a predetermined temperature, wherein the bottle 1 is made of a highly heat-conductive material having an inner diameter capable of being inserted and extracted in a sliding contact state or through a slight gap. A plurality of heating cylinders 2, an electric heating element 3 that generates heat by energization and heats the heating cylinder 2, and the heating cylinder 2 that contacts the bottom of the bottle 1 or the bottom of the bottle 1. The temperature inside the bottle 1 or the heating cylinder 2 is detected so as to be in direct contact with the bottom 20 of the bottle, and the inside of the bottle 1 fitted to the heating cylinder 2 according to the detected temperature is detected. The bottle heating apparatus is characterized by comprising a thermostat 4 for controlling the energization of the electric heating body 3 so that the liquid material can be heated to a predetermined temperature.

  Moreover, it is a bottle heating apparatus which takes out the bottle 1 containing a liquid substance by heating to predetermined temperature, Comprising: High heat conductivity which has the internal diameter which can insert and extract the said bottle 1 in a sliding contact state or through a slight clearance gap A plurality of heating cylinders 2 made of a material, an electric heating element 3 that generates heat by energization and heats the heating cylinder 2, and the heating cylinder 2 in contact with the bottom or side periphery of the bottle 1 The temperature of the bottle 1 or the heating cylinder 2 was detected and fitted to the heating cylinder 2 according to the detected temperature. The bottle heating apparatus is characterized by comprising a thermostat 4 for controlling energization of the electric heating body 3 so that the liquid in the bottle 1 can be heated to a predetermined temperature.

  The inner diameter of the heating cylinder 2 is set so that the baby bottle 1 containing milk can be inserted and removed in a sliding contact state or through a slight gap. The bottle heating apparatus according to any one of the above items is concerned.

  In addition, the bottom inner surface 23 of the heating cylinder 2 is set to a shape that allows the bottom outer surface 17 of the bottle 1 inserted and disposed in the heating cylinder 2 to be substantially in contact with the heating cylinder 2. The thermostat 4 is provided so that the thermostat 4 is in direct contact with the bottom outer surface 24, and the thermostat 4 is configured to control energization to the electric heating body 3 in accordance with the temperature of the bottom 20 of the heating cylinder 2. It concerns on the bottle heating apparatus of any one of Claims 1-3 characterized by the above-mentioned.

  Moreover, the heat insulating material 5 was provided so that the outer peripheral surface 22 of the said cylinder 2 for a heating might be covered, It concerns on the bottle heating apparatus of any one of Claims 1-4 characterized by the above-mentioned. .

  Moreover, the linear electric heating body 3 was wound around the outer peripheral surface 22 of the said cylinder 2 for a heating, It concerns on the bottle heating apparatus of any one of Claims 1-5 characterized by the above-mentioned. .

  Further, when the detected temperature is lower than a predetermined temperature, energization to the electric heating element 3 is started, and when the detected temperature is equal to or higher than the predetermined temperature, the electric thermostat 4 is stopped. The bottle heating apparatus according to any one of claims 1 to 6, wherein the bottle heating apparatus is configured.

  8. The bottle heating according to claim 7, wherein the thermostat 4 is set so that milk stored in the baby bottle 1 is about 38 to 43 ° C. when energization of the electric heating element 3 is stopped. It concerns the device.

  The bottle heating device according to any one of claims 1 to 8, further comprising an energization notification mechanism that notifies the start or stop of energization of the electric heating element 3.

  The heating cylinder 2 includes an inner cylinder 7 and an outer cylinder 6 into which the inner cylinder 7 is inserted. The outer cylinder 6 is in sliding contact with the inner cylinder 7 or through a slight gap. The bottle heating device according to any one of claims 1 to 9, characterized in that the inner diameter is set such that insertion and extraction are possible.

  Moreover, the said cylinder 2 for a heating is metal, It concerns on the bottle heating apparatus of any one of Claims 1-10 characterized by the above-mentioned.

  Moreover, the silicon | silicone rubber heater or the film heater was employ | adopted as the said electric heating body 3, It concerns on the bottle heating apparatus of any one of Claims 1-11 characterized by the above-mentioned.

  Since the present invention is configured as described above, it is possible to efficiently heat bottles such as baby bottles without using water, there is no risk of water-based infection, and practical use with excellent maintainability and cleanliness. It becomes a typical bottle heating device.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  For example, the baby bottle 1 containing milk, for example, is inserted into the heating cylinder 2, and the electric heating element 3 is energized to cause the electric heating element 3 to generate heat, whereby the baby bottle 1 is interposed via the heating cylinder 2. Heat. That is, the present invention is a so-called dry heating method in which the baby bottle 1 is heated by heating the heating tube 2 with the electric heating body 3, unlike the conventional hot water method (so-called wet heating method). There is no fear of waterborne infections.

  Moreover, since the heating cylinder 2 is formed of a high thermal conductivity material, the heating by the electric heater 3 is performed well, and the whole can be heated more uniformly. That is, for example, the baby bottle 1 can be heated more uniformly as compared with a configuration in which the baby bottle is placed on a hot plate and heated.

  Energization of the electric heating element 3 is controlled by a thermostat 4. Specifically, for example, the thermostat 4 is set so that it is energized below the detection temperature when the milk contained in the baby bottle 1 reaches a predetermined temperature, and is de-energized above the detection temperature.

  And when electricity supply stops and milk is heated to predetermined temperature, this baby bottle 1 will be extracted from the cylinder 2 for a heating.

  At this time, the inner diameter of the heating cylinder 2 is configured such that the feeding bottle 1 can be inserted and extracted through a sliding contact state or through a slight gap. The gap between the baby bottle 1 and the baby bottle 1 is reduced as much as possible, and heat radiation from the gap can be suppressed as much as possible. It can be heated efficiently.

  In addition, by providing the heating body 3 and the thermostat 4 for each heating tube 2, each baby bottle 1 can be efficiently heated even if the amount of milk to be stored for each baby bottle 1 and the heating start time are different. can do. That is, for example, when a baby bottle is soaked in hot water at a constant temperature as in the conventional hot water bath method, there is no risk of overheating, but heating takes time. In this respect, since the temperature of each baby bottle 1 can be controlled independently according to the present invention, even if one baby bottle 1 is heated at a high rate by the electric heating element 3, it affects other baby bottles 1. It is possible to heat to a predetermined temperature in a shorter time.

  Further, for example, when the heat insulating material 5 is provided so as to cover the outer peripheral surface 22 of the heating cylinder 2, the heat radiation from the heating cylinder 2 is concentrated only on the side of the baby bottle 1. 1 can be heated more satisfactorily.

  For example, when the linear electric heating body 3 is wound around the outer peripheral surface 22 of the heating cylinder 2, the side peripheral surface of the heating cylinder 2 is more efficiently heated from the entire circumferential direction. It becomes possible.

  In addition, for example, by providing a heating notification mechanism for notifying that the heating is finished, the baby bottle 1 filled with milk is simply inserted into the heating cylinder 2 without the need to measure time, and the baby bottle 1 is predetermined. It becomes possible to heat to temperature.

  Further, for example, the heating cylinder 2 includes an inner cylinder 7 and an outer cylinder 6 into which the inner cylinder 7 is inserted. The outer cylinder 6 is in sliding contact with the inner cylinder 7 or has a slight gap. If the inner diameter is set so that it can be inserted and extracted via the inner cylinder 7, the inner cylinder 7 can be extracted from the outer cylinder 6 for easy cleaning, disinfection, sterilization and the like.

  Therefore, the present invention is a practical bottle heating apparatus that can efficiently heat a baby bottle without using water, has no fear of waterborne infection, and is extremely excellent in maintainability and cleanliness.

  Specific embodiments of the present invention will be described with reference to FIGS.

  This embodiment is a bottle heating device that takes out a baby bottle 1 containing milk by heating it to a predetermined temperature, and has an inner diameter that allows the baby bottle 1 to be inserted and extracted in a sliding contact state or through a slight gap. A plurality of heating cylinders 2 made of a highly heat-conductive material, an electric heating element 3 that generates heat by energization and heats each of the heating cylinders 2, and the heating cylinder that contacts the bottom of the baby bottle 1 2 is provided so as to be in direct contact with the bottom portion of the heating tube 2. The temperature of the heating cylinder 2 is detected, and the milk in the baby bottle 1 fitted to the heating cylinder 2 is predetermined according to the detected temperature. The thermostat 4 controls the energization of the electric heater 3 so that it can be heated to a temperature.

  Specifically, as shown in FIG. 2, a plurality of heating cylinders 2 are juxtaposed in a standing state and a plurality of heating cylinders 2 that can be inserted into the heating cylinder 2 by being fitted on the base 8. The heating cylinder 2, the electric heating body 3, and the thermostat 4 are provided on a main body 10 including a lid body 9 having the insertion hole 11. In the present embodiment, the upper opening of the heating cylinder 2 is exposed, and the remaining portion of the heating cylinder 2, the electric heating element 3, and the thermostat 4 are provided in a concealed state by the lid body 9. In the figure, reference numeral 12 denotes a switch connected to the electric heating element 3 and the thermostat 4, and 13 denotes a power supply cord.

  Each part will be specifically described.

  The heating cylinder 2 is made of aluminum and includes a side peripheral portion 19 having an inner peripheral surface 21 that comes into contact with the outer peripheral surface 16 of the baby bottle 1 and a bottom portion 20 that comes into contact with the bottom outer surface 17 of the baby bottle 1. ing. In other words, it is a bottomed cylindrical body whose one end is closed and the other end is opened, and is configured such that the baby bottle 1 can be inserted and extracted from the one end side opening. In the present embodiment, the heating cylinder 2 made of aluminum is adopted, but a metal other than aluminum, for example, stainless steel may be adopted.

  Specifically, the inner shape of the heating cylinder 2 is set to a shape that substantially matches the outer shape of the baby bottle 1. In the present embodiment, the outer peripheral surface 16 of the baby bottle 1 and the inner peripheral surface 21 of the heating cylinder 2 are configured to be provided in a sliding contact state or a slight gap over substantially the entire circumference. .

  Further, the inner surface of the heating cylinder 2 is subjected to fluororesin processing. Therefore, cleaning or the like can be easily performed. In addition, although the fluororesin processing is given in a present Example, the same effect can be acquired also when alumite processing is given, for example.

  In addition, the bottom 20 of the heating cylinder 2 is set to have a concave curved surface that substantially matches the convex curved shape of the bottom of the baby bottle 1. Specifically, the bottom inner surface 23 of the heating cylinder 2 is shaped so that the bottom outer surface 17 of the bottle 1 inserted into the heating cylinder 2 can be substantially in contact with the heating cylinder 2 as shown in FIG. The thermostat 4 is provided so as to be in direct contact with the bottom outer surface 24 of the heating cylinder 2 and the energization of the electric heater 3 is controlled according to the temperature of the bottom 20 of the heating cylinder 2. Thus, the thermostat 4 is configured. In the figure, reference numeral 14 is a conducting wire, and 15 is a plug.

  Therefore, by providing the electric heating body 3 on the outer peripheral surface 22 of the heating cylinder 2 as will be described later, the side peripheral surface side of the heating cylinder 2 is mainly heated by the electric heating element 3, and the bottom portion on which the thermostat 4 is provided. The temperature rise on the 20th side is moderate. Therefore, it is possible to perform temperature control with good followability with respect to the temperature rise of the heating cylinder 20, and the temperature of the milk can be heated and kept at an appropriate temperature. As described above, it is preferable to provide the thermostat 4 on the bottom outer surface 24 of the heating cylinder 2 where the bottom outer surface 17 of the bottle 1 is reliably in contact, but as a configuration to be provided on the outer peripheral surface 22 of the heating cylinder 2. Also good.

  In the present embodiment, the height of the heating cylinder 2 is set to a height at which the cap 18 provided at the opening of the baby bottle 1 can be picked up and inserted. Specifically, the upper opening of the baby bottle 1 is exposed, and at least the milk liquid level stored in the baby bottle 1 is set to a height that can be stored in the heating cylinder 2. Preferably, the height of the outer peripheral surface 16 of the baby bottle 1 is such that all of the equal-diameter portions (large-diameter portions) having a substantially constant diameter are accommodated in the heating cylinder 2. Therefore, the milk contained in the baby bottle 1 can be heated well, and the cap 18 is removed and the baby bottle 1 is inserted into the heating cylinder 2 as shown in FIG. The extraction of the bottle 1 from the heating cylinder 2 can be performed very easily.

  A linear electric heating element 3 is spirally wound around the outer peripheral surface 22 of the heating cylinder 2. Specifically, a silicon rubber heater is employed as the electric heater 3. The silicon rubber heater is composed of a wire such as a conducting wire and a silicon tube fitted on the wire. By winding the silicon rubber heater around the outer peripheral surface 22 of the heating cylinder 2, the baby bottle 1 inserted and fitted into the heating cylinder 2 can be efficiently heated from the entire circumferential direction. It becomes. In this embodiment, a silicon rubber heater is employed, but a heater having another configuration, such as a film heater, may be employed.

  The thermostat 4 starts energizing the electric heating element 3 when the detected temperature is lower than a predetermined temperature, and stops energizing the electric heating element 3 when the detected temperature is equal to or higher than the predetermined temperature. It is configured. Specifically, when the temperature of the heating cylinder 2 is directly detected and a predetermined detection temperature at which the milk filled in the baby bottle 1 becomes a desired temperature is detected, the energization to the heating wire 3 is stopped. It is configured as follows. In the present embodiment, the thermostat 4 is set so that the milk contained in the baby bottle 1 as the bottle 1 is about 38 to 43 ° C. when the energization to the electric heating element 3 is stopped.

  For example, the temperature of the heating cylinder 2 when the milk stored in the baby bottle 1 reaches about 40 ° C. is measured in advance, and the detected temperature at this time is set to a temperature at which the energization of the electric heating body 3 is stopped. Set. In addition, it is good also as a structure where the temperature which stops electricity supply to the electric heating body 3 and the temperature which starts electricity supply to the electric heating body 3 do not correspond.

  Further, for example, by detecting that the baby bottle 1 filled with milk is inserted and fitted into the heating cylinder 2, energization to the electric heating body 3 and the thermostat 4 is started, and the baby bottle A switch mechanism that does not energize the electric heating element 3 and the thermostat 4 until 1 is inserted and fitted into the heating cylinder 2 may be further provided. In this case, the baby bottle 1 is inserted and fitted. Until the heating cylinder 2 is not energized, it becomes more efficient. Specifically, for example, it may be configured to start energization by detecting that the baby bottle 1 cooled in a refrigerator is inserted into the heating cylinder 2.

  The main body 10 may be provided with an energization notifying mechanism (not shown) for notifying the start and stop of energization of the electric heating element 3. Specifically, for example, an LED that is turned on when the electric heating element 3 is energized and turned off when the electric heater 3 is not energized may be provided.

  A cylindrical heat insulating material 5 is fitted on the outer periphery of the heating cylinder 2 so as to conceal the outer peripheral surface 22 of the heating cylinder 2. Specifically, the heat insulating material 5 is provided so as to conceal the electric heating body 3 wound around the heating cylinder 2. On the inner surface of the cylindrical heat insulating material 5, a spiral groove 5a into which the electric heating body 3 is fitted is provided. Therefore, the electric heating element 3 can be arranged in a sandwiched state between the heating cylinder 2 and the heat insulating material 5 without any gap, and the hot air is unlikely to escape to the outside, so that the baby bottle 1 can be heated more efficiently.

  In addition, in the present Example, although the cylindrical thing as mentioned above is employ | adopted as the heat insulating material 5, you may employ | adopt the thin film-shaped heat insulating material 5. FIG.

  For example, as shown in FIG. 5, the heating cylinder 2 includes an inner cylinder 7 and an outer cylinder 6 into which the inner cylinder 7 is inserted. The outer cylinder 6 is in sliding contact with the inner cylinder 7. You may employ | adopt what was set to the internal diameter which can be inserted / extracted in a state or through a slight clearance gap. In addition, it is good to comprise so that the inner shape of the inner cylinder 7 may correspond with the outer shape of a baby bottle like the above, and the inner shape of the outer cylinder 6 may correspond with the outer shape of the inner cylinder 7 substantially. In this case, for example, even if the outer cylinder 6 is fixed to the main body 10, the inner cylinder 7 can be extracted from the outer cylinder 6 and the processing such as cleaning, disinfection and sterilization can be performed more easily.

  For example, as shown in FIG. 6, a heating tank 25 that can accommodate a large number of baby bottles 31 a and 31 b (100 cc and 200 cc) of different sizes and a lid that closes the upper opening of the heating tank 25. A main body 10 composed of 28 may be adopted. Specifically, a plurality of insertion holes 27a through which the baby bottles 31a and 31b having a capacity of 100 cc are inserted and a plurality of insertion holes 27b through which the baby bottle 16 having a capacity of 200 cc are inserted are formed in the upper opening of the heating tank 25 in a juxtaposed manner. In the heating tank 25, the inner shapes of the baby bottle 31a with a capacity of 100 cc and the baby bottle 31b with a capacity of 200 cc are arranged at positions corresponding to the insertion holes 27a and 27b of the plate body 26, respectively. A heating cylinder 2 substantially matching the outer shape may be provided, and a sterilization lamp 29 and a window 30 may be provided on the lid 28 pivotably attached to the upper opening of the heating tank 25. In this case, the inside of the tank can be visually observed through the window 30, and the inside of the tank can be sterilized by the germicidal lamp 29, so that the propagation of the bacteria can be suppressed, and the hygiene in the tank can be further improved. .

  Since the present embodiment is configured as described above, the baby bottle 1 containing milk is inserted into the heating cylinder 2 and the electric heater 3 is energized to generate heat. 1 is heated through the heating cylinder 2. That is, the present embodiment is a so-called dry heating method in which the baby bottle 1 is heated by heating the heating tube 2 with the electric heating body 3 unlike the conventional hot water method (so-called wet heating method). There is no fear of waterborne infections that are of concern in Japan.

  In addition, since the heating cylinder 2 is made of metal (aluminum) having a high thermal conductivity, the heating by the electric heating element 3 is performed well, and the whole can be heated more uniformly.

  Energization of the electric heating element 3 is controlled by a thermostat 4. Specifically, for example, the thermostat 4 is set so that it is energized below the detection temperature when the milk contained in the baby bottle 1 reaches a predetermined temperature, and is de-energized above the detection temperature.

  And when electricity supply stops and milk is heated to predetermined temperature, this baby bottle 1 will be extracted from the cylinder 2 for a heating.

  At this time, the inner diameter of the heating cylinder 2 is configured such that the feeding bottle 1 can be inserted and extracted through a sliding contact state or through a slight gap. The gap between the baby bottle 1 and the baby bottle 1 is reduced as much as possible, and heat radiation from the gap can be suppressed as much as possible. It can be heated efficiently.

  In addition, by providing the heating body 3 and the thermostat 4 for each heating tube 2, each baby bottle 1 can be efficiently heated even if the amount of milk to be stored for each baby bottle 1 and the heating start time are different. can do.

  Further, since the heat insulating material 5 is provided so as to cover the outer peripheral surface 22 of the heating cylinder 2, the heat radiation from the heating cylinder 2 is concentrated only on the baby bottle 1 side, so that the baby bottle 1 is further improved. It becomes possible to heat.

  Further, since the linear electric heating element 3 is wound around the outer peripheral surface 22 of the heating cylinder 2, the side peripheral surface of the heating cylinder 2 can be more efficiently heated from the entire circumferential direction. Become.

  In addition, by providing a heating notification mechanism for notifying that the heating has been completed, the baby bottle 1 can be brought to a predetermined temperature simply by inserting the baby bottle 1 filled with milk into the heating cylinder 2 without having to measure time. It becomes possible to heat.

  Therefore, the present embodiment is a practical bottle heating apparatus that can efficiently heat a baby bottle without using water, has no fear of waterborne infection, and is extremely excellent in maintainability and cleanliness.

  The present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

It is a schematic explanatory perspective view of a conventional example. It is a schematic explanatory perspective view of a present Example. It is a schematic explanatory sectional view in which a part of the present embodiment is cut out. It is a schematic explanatory drawing of a present Example. It is a schematic explanatory drawing of another example. It is a schematic explanatory perspective view which cut off a part of another example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottle 2 Heating cylinder 3 Electric heating body 4 Thermostat 5 Heat insulation body 6 Outer cylinder 7 Inner cylinder
17 Bottom exterior
19 Side circumference
20 Bottom
22 Outer peripheral surface
24 Bottom exterior

Claims (12)

  A bottle heating apparatus for taking out a bottle containing a liquid material by heating it to a predetermined temperature, wherein the bottle is made of a highly heat-conductive material having an inner diameter capable of being inserted and withdrawn in a sliding contact state or through a slight gap. A heating cylinder, an electric heating element that generates heat by energization and heats the heating cylinder, and a bottom of the bottle or a bottom of the bottle that is in contact with the bottom of the bottle. The electric heating is provided so that the temperature of the bottle or the heating cylinder is detected, and the liquid in the bottle fitted to the heating cylinder is heated to a predetermined temperature according to the detected temperature. A bottle heating device comprising a thermostat for controlling energization to a body.   A bottle heating apparatus for taking out a bottle containing a liquid material by heating it to a predetermined temperature, wherein the bottle is made of a highly heat-conductive material having an inner diameter capable of being inserted and withdrawn in a sliding contact state or through a slight gap. The heating cylinder, the electric heating element that generates heat by energization and heats the heating cylinder, and the bottom or side circumference of the bottle that is in contact with the bottom or side circumference of the bottle. The temperature of the bottle or the heating cylinder is detected so that the liquid in the bottle fitted to the heating cylinder can be heated to a predetermined temperature according to the detected temperature. And a thermostat for controlling the energization of the electric heating elements, respectively.   The inner diameter of the heating cylinder is set so that the milk bottle containing milk can be inserted and extracted in a sliding contact state or through a slight gap. A bottle heating apparatus according to claim 1.   The inner surface of the bottom of the heating cylinder is set to a shape that allows the outer surface of the bottom of the bottle inserted and disposed in the heating cylinder to be substantially in contact with the outer surface of the bottom of the heating cylinder. The thermostat is configured to control the energization of the electric heating body according to the temperature of the bottom of the heating cylinder, according to any one of claims 1 to 3. The bottle heating apparatus as described.   The bottle heating apparatus according to any one of claims 1 to 4, wherein a heat insulating material is provided so as to cover an outer peripheral surface of the heating cylinder.   The bottle heating device according to any one of claims 1 to 5, wherein a linear electric heating body is wound around an outer peripheral surface of the heating cylinder.   The thermostat is configured to start energization to the electric heating element when the detected temperature is lower than a predetermined temperature, and to stop energization to the electric heating element when the detected temperature is equal to or higher than the predetermined temperature. The bottle heating apparatus according to any one of claims 1 to 6, wherein the bottle heating apparatus is characterized.   8. The bottle heating device according to claim 7, wherein the thermostat is set so that the milk contained in the baby bottle is about 38 to 43 ° C. when the energization to the electric heating element is stopped.   The bottle heating apparatus according to any one of claims 1 to 8, further comprising an energization notification mechanism that notifies the start or stop of energization of the electric heating body.   The heating cylinder includes an inner cylinder and an outer cylinder into which the inner cylinder is inserted. The outer cylinder is set to have an inner diameter that allows the inner cylinder to be inserted and removed in a sliding contact state or through a slight gap. The bottle heating apparatus according to any one of claims 1 to 9, wherein   The bottle heating device according to any one of claims 1 to 10, wherein the heating cylinder is made of metal. The bottle heating apparatus according to claim 1, wherein a silicon rubber heater or a film heater is adopted as the electric heating body.

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