TWI425171B - Heating the conditioner - Google Patents

Description

Heating conditioner

The present invention relates to a heating conditioner comprising a steam generating device that heats water to generate water vapor.

Conventional heating conditioners are known to include a high-frequency heating means, a grid type heating means, a hot air oven heating means, and a steam generating means, and heating and conditioning the food by means of a plurality of means alone or in combination. Conditioner.

As such a conventional technique, for example, Patent Document 1 discloses a heating conditioner including a steam generating device 18, which is composed of the following members: ‧‧‧ In addition to high-frequency heating means In addition to the magnetron 5, the grid type heating means, and the heater 6 for the hot air oven heating means, there are also a steam generating container 7 (steam generating means) as a steam generating means, a water tank 15, a pipe 16, and a feed water pump 17 (pump means) )Wait.

Then, in the steam generating container 7, in order to prevent the boiling water from being ejected from the steam ejection port 11 even when the boiling water is flushed onto the inner surface of the vapor generating chamber 7a, the heat dissipating blades 73 to 75 are formed into a labyrinth. The passage of the shape is heated to form steam by hitting the boiling water against the heat radiation fins 73 to 75, and the vapor is discharged from the steam discharge port 11 into the heating chamber 3.

[Advanced technical literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2006-84059

In recent years, due to the health orientation, the method of conditioning excess oil and salt using superheated steam to remove food has been attracting attention.

The conditioning of the superheated steam is to efficiently heat the food by forming the condensation heat generated by the condensation water droplets on the surface of the food by the superheated steam, and then to alleviate the surface of the food by keeping the food around with a certain humidity. The heating caused by the latent heat of condensation is not only that the surface is heated significantly but the inside of the food is also heated, and the temperature difference between the surface and the inside of the food is alleviated to raise the temperature of the entire food.

In addition, the degreasing by superheated steam removes excess oil such as meat, and the temperature of the food is raised to the temperature at which the oil is melted by the superheated steam (the chicken is 30 to 32 ° C, the pork is 33 to 46 ° C, and the beef is 40 to 40). 50 ° C) or more to dissolve the oil, and then raise the temperature of the food until the heat of the meat becomes the temperature (the heat of the meat becomes 60 to 70 ° C), even if the temperature rises until the protein begins to solidify due to heating, because the protein is coagulated. The entire food is reduced, and the fat which melts in the inside of the food flows out to the surface, and the oil which flows out to the surface and the water droplet which adhered to the surface of the food are dripped together, and the oil is removed from the foodstuff.

Furthermore, when the salt of the fish is removed, water droplets are generated on the surface of the food by superheated steam and saturated steam, and water droplets and food adhered to the food. In the meantime, the salt is moved from the food having a high salt concentration to the water having a low salt concentration due to the difference in the concentration of the salt, and the salt concentration in the food is gradually decreased as the water droplets adhering to the surface of the food are dripped. At this time, the saturated steam is heated by a minimum amount which can reduce salt and the fish does not contain excessive moisture.

As described above, the conditioning of the superheated steam is efficiently heated by the high latent heat of the superheated steam, so that the temperature of the superheated steam is more important than the amount of steam.

However, when the cooking is changed, in order to enable steaming, it is necessary to increase the amount of saturated steam generated.

For example, in the case where the dumplings are steamed from the beginning of the birth, the portion of the skin made of the flour, particularly the portion of the portion in which the material is pinched, becomes thick, and a large amount of saturated water vapor is necessary for steaming.

Conventionally, a heating conditioner mainly composed of superheated steam is supplied with about 5 ml of water per minute to a steam generating device to generate saturated steam, and the saturated steam is heated by heating means to generate superheated steam.

However, when the amount of water supplied to the steam generating device is about 5 ml of saturated steam per minute, the dumpling skin, especially the portion which is pinched after the material is sandwiched, cannot be made to be delicious because the heat is hardened. Dumplings.

Therefore, if the amount of saturated steam is increased to 10 to 20 ml per minute, it is possible to evaporate the dumplings which are not hard and delicious.

However, if the amount of saturated steam is increased, the change in conditioning can be increased, and the use time of the steam generating device is drastically increased. On the other hand, since the amount of saturated steam generated is also increased, a large amount of the steam generating device is present. The scale of the calcium component contained in the water is accumulated.

The steam generating device mounted on the heating conditioner basically does not require maintenance, and in the case where the durability of the heating conditioner (life) is about 8 to 10 years, it is necessary to avoid the disadvantage caused by the accumulated scale. Ensure the performance of the steam generating device.

For example, as shown in Patent Document 1, the inside of the steam generating chamber 7a of the steam generating container 7 (steam generating device) and the heat dissipating blades 73 to 75 are integrated, and the amount of adhesion is increased depending on the ratio of use time. The scale of the dirt causes the heat conduction to the water to deteriorate, and the efficiency of heat exchange of water into water vapor is lowered.

In addition, when the heat exchange efficiency is lowered by the accumulated scale, even if the water is flushed onto the inner surface of the steam generating chamber 7a, the heat radiating blades 73 to 75 provided in a labyrinth shape are not allowed to make the water into water. Since the heating of the vapor proceeds rapidly, it is conceivable that the water is directly discharged from the vapor discharge port 11.

The present invention is directed to a heating conditioner according to the first aspect of the present invention, comprising: a heating chamber for storing food; and a steam generating device for supplying water vapor generated by heating the water to the heating chamber; The utility model is characterized in comprising: a water vapor generating space surrounded by a heated bottom surface and a plurality of heating side surfaces; a heat generating portion disposed on an outer circumference of the water vapor generating space; and a water supply port for supplying water to the water vapor generating space And a discharge port which is cylindrical and protrudes to both sides of the heating side, and is provided in the foregoing a plurality of heating side surfaces above the heating side of the heating chamber side for supplying water vapor from the steam generating space to the heating chamber; water supplied from the water supply port to the steam generating space, using the heated bottom surface And the heating side is heated to instantaneously become water vapor and discharged from the discharge port, and the water vapor film generated in the water vapor generation space deteriorates heat conduction, and the water becomes water droplets on the heating side. In the case where the rolling is raised, the water droplet cannot pass through the cylindrical discharge port which protrudes from 2.5 mm to 5 mm into the steam generating space, and the water droplet is not discharged to the heating chamber.

According to the present invention, even if the heat exchange efficiency of the scale accumulated in the steam generating device, the steam generating device, and the water is lowered, it is possible to suppress the water that has not been vaporized into steam from being ejected from the steam generating device into the heating chamber.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The main body 1 of the heating conditioner includes a heating chamber 28 that stores the food 100 of the object to be heated therein.

The door 2 is opened and closed for allowing the food 100 to enter and exit the heating chamber 28, and the heating chamber 28 is closed by closing the door 2, thereby preventing leakage of microwaves used when the food 100 is heated, and sealing the heat of the heater to be described later. And superheated steam, and can be heated with good efficiency.

The handle 9 is attached to the door 2, so that opening and closing of the door 2 is easy, because This forms a shape that is easy to hold by hand.

The glazing 3 is attached to the door 2 in order to confirm the state of the food being heated, and a high-temperature glass that is resistant to heat such as a heater is used.

The input means 71 is an operation panel 4 provided on the lower side of the front side of the door 2, and is provided by an operation unit 6 for inputting heating means such as microwave heating or heater heating, heating time, and the like, and display input from the operation unit 6. The content and the display unit 5 of the progress state of the conditioning are configured.

The water tank 42 is a container for storing water required to produce saturated steam or superheated steam, and is disposed on the lower side of the front side of the main body 1, and can be easily supplied with water as a structure that can be attached and detached from the front surface of the main body 1. And drainage.

The outer frame 7 covers the upper and left and right side casings of the body 1.

The rear plate 10 is formed to form the rear of the casing, and an external exhaust duct 18 is attached to the upper portion, and an exhaust hole 36 is provided inside the external exhaust duct 18, and the exhaust hole 36 is discharged from the food 100. The discharged steam and the cooling air (waste heat) 39 after cooling the parts inside the body 1.

Further, the external exhaust duct 18 discharges the cooling air (waste heat) passing through the exhaust hole 36 to the outside of the main body 1, and the exhaust system is discharged from the external exhaust port 8 of the external exhaust duct 18, and the exhaust direction is exhausted. The main body 1 is exhausted in the upper direction and toward the front side. By making the discharge direction of the exhaust gas in the upper direction and toward the front side, even if the back surface is disposed close to the wall surface, the wall surface is not contaminated by the exhaust gas.

The machine room 20 is disposed in a space between the bottom surface 28a of the heating chamber and the bottom plate 21 of the body 1. The bottom plate 21 is provided with a magnetron 33 for heating the food, a waveguide 47 connected to the magnetron 33, and a control substrate. 23, its He will describe various components, a fan device 15 that cools these various components, and the like.

The heating chamber bottom surface 28a is recessed in a substantially central portion, and a rotating antenna 26 is provided. The microwave energy radiated from the magnetron 33 is passed through the opening portion of the waveguide 47 through the output shaft 46a of the rotating antenna driving unit 46. 47a, flowing into the lower surface of the rotating antenna 26, is diffused by the rotating antenna 26 and radiated into the heating chamber 28. The rotating antenna 26 is coupled to the output shaft 46a of the rotating antenna driving means 46.

The fan unit 15 is rotated by the driving of the motor, and the cooling air 39 generated by the fan unit 15 is used to control the self-heating magnetron 33, the variable frequency substrate 22, and the weight detecting means 25 in the machine room 20. Cooling and flowing between the outer side of the heating chamber 28 and the outer frame 7 and between the hot air box 11a and the rear plate 10, while cooling the outer frame 7 and the rear plate 10, passing through the exhaust hole 36, from the outer exhaust duct 18 The external exhaust port 8 is exhausted.

A hot air unit 11 is attached to the rear portion of the heating chamber 28, and a hot air box 11a is disposed on the rear side of the heating chamber deep wall surface 28b. A hot air fan 32 is disposed between the heating chamber deep wall surface 28b and the hot air box 11a, and is located at the outer periphery thereof. The hot air heater 14 on the side is provided with a hot air motor 13 on the rear side of the hot air box 11a, and the motor shaft is coupled to the hot air fan 32 through a hole provided in the hot air box 11a.

Then, the hot air unit 11 is provided with a hot air fan 32 that circulates the air of the heating chamber 28 with good efficiency. The heating chamber deep wall surface 28b is provided with a hot air intake hole 31 and a hot air discharge hole 30 as air passages.

The hot air fan 32 is rotated by the driving of the hot air motor 13 installed outside the hot air box 11a, and the circulating air is added by the hot air heater 14. heat.

Since the hot air motor 13 rises in temperature due to heat from the heating chamber 28 or the hot air heater 14, in order to prevent this, the hot air motor casing 17 is enclosed.

The cooling duct 16 is formed in a substantially cylindrical shape between the hot bellows 11a and the rear plate 10, and the upper end opening is connected to the lower surface of the hot air motor casing 17, and the lower end opening is connected to the discharge port 53 of the fan unit 15, and the fan is provided. A portion of the cooling air 39 of the device 15 is taken into the hot air motor casing 17.

On the back side of the top surface of the heating chamber 28, a grid type heating means 12 composed of a heater is attached. The grid type heating means 12 is formed in a planar shape by attaching a heater wire to the mica plate, is pressed and fixed to the inner side of the top surface of the heating chamber 28, and heats the top surface of the heating chamber 28 to lend the food in the heating chamber 28. Burned by radiant heat.

Further, a plurality of weight detecting means 25 are provided on the bottom surface 28a of the heating chamber. For example, the front right side is the right side weight detector 25a and the left side weight detector 25b, and the rear side center is the deep side side weight detector 25c. The platen 24 is placed.

The platen 24 is used for placing foods 100, and is formed of a material such as a magnet that has heat resistance and can be used for both heater heating and microwave heating, and has excellent microwave permeability and no problem in hygiene.

Further, the platen 24 is such that when the grill heating means 12 is used for heating, the food 100 can be appropriately brought close to the grid type heating means 12, and placed on the upper and lower sides of the heating chamber 28. Multiple segments (in the picture) It is used for the shed 27 of the 3rd section).

The steam generating device 43 which will be described later is substantially horizontally long and is attached to the outer surface of the hot air box 11a of the hot air unit 11 in the lateral direction, and the water is supplied from the water tank 42 through the pipe 45 by the driving pump means 87 and supplied from the water supply port 104. Then, the supplied water is heated by the heat generating portion 43c to boil, and is turned into water vapor to be ejected from the discharge port 44.

The discharge port 44 faces the hot air unit 11, and the saturated water vapor sprayed into the hot air unit 11 is sent to the heating chamber 28 by the hot air fan 32. Further, the method of heating the hot air heater 14 to heat the saturated steam can be sent to the heating chamber 28 as superheated steam.

Further, the steam generating device 43 may be directly attached to the outer side surface of the heating chamber 28 as indicated by a broken line in FIG. 3, in which case the discharge port 44 penetrates the side surface of the heating chamber 28 to be inside the heating chamber 28. Opening.

The thermistor 88 is used to detect the temperature of the steam generating device 43, and transmits the detection result to the control board 23 to be described later, and controls the heat generating portion 43c and the pump means 87.

The pump means 87 is used to draw water from the water tank 42 to the steam generating device 43, and is composed of a pump and a motor that drives the pump. The amount of water supplied to the steam generating device 43 is changed by an ON/OFF ratio at which the motor is energized by the control substrate 23, and is adjusted to a predetermined value.

The amount of water delivered by the pump means 87 in one operation is approximately 0.4 ml when the heat generating portion 43c uses a heater of 600 W, because the temperature of the steam generating device 43 is lowered by the inflowing water, and the amount of water is not accumulated.

Next, the detailed structure of the steam generating device 43 will be described with reference to Figs. 6 to 9 .

In the drawings, the steam generating device 43 is composed of a steam generating device main portion 43a having a concave water vapor generating space 103 therein, and a concave water vapor generating space 103 for blocking the steam generating device main portion 43a. The steam generating device cover portion 43b is configured. Then, both the steam generating device main body portion 43a and the steam generating device cover portion 43b are formed into a substantially horizontally long shape by forming a metal material which is hard to rust such as an aluminum cast product in a substantially semicircular shape on one side in the longitudinal direction.

The heat generating portion 43c constituting the heater of the steam generating device is a member that heats the steam generating device 43, and the Sheath heater is bent into a substantially U-shape, and is integrally embedded in the steam generating device by casting. The inside of the outer peripheral portion of the main body portion 43a is such that the water vapor generating space 103 is bent inside the substantially U-shaped portion.

Therefore, it is possible to heat the surface of the heated bottom surface 43g and the heating side surface 43f constituting the water vapor generation space 103 with good efficiency.

The lid portion 43b is attached to the groove 43d provided in the outer peripheral portion of the steam generating space 103 of the vapor generating device main body portion 43a, and is then locked by the bolt seat 102 formed in the upper and lower four portions in the longitudinal direction. The steam generating device main body portion 43a is fixed to the steam generating device main body portion 43a, and the steam generating space 103 of the steam generating device main portion 43a is blocked.

Further, the lid portion 43b is integrally provided with a cylindrical water supply port 104, and a pipe 45 shown in Fig. 5 is connected to the outside of the water supply port 104.

The water injected from the water supply port 104 is constituted by the water vapor generation space 103. The heated bottom surface 43g and the heating side surface 43f are heated and vaporized into water vapor, and the water vapor is discharged to the outside of the steam generating device 43 from the discharge port 44 provided on the heating side surface 43f.

The discharge port 44 is provided on the outer side of the steam generating device 43, that is, in both the hot air unit 11 (the heating chamber 28) and the water vapor generating space 103, and is provided to protrude into a cylindrical shape, in particular, the front end of the steam generating space 103 side. The portion 44a is provided to protrude from the water vapor generation space 103 than the heating side surface 43f, and protrudes only by (h) size. The (h) size is desirably set to 2.5 to 5 mm in accordance with various experimental results, whereby water that has not been vaporized into steam can be prevented from being ejected from the discharge port 44 into the heating chamber 28.

This embodiment is constituted by the above configuration, and then the steam generating operation of the steam generating device 43 will be described.

Further, the high-frequency heating conditioning using the magnetron 33, the grille conditioning using the grill heating means 12, the hot air oven heating conditioning using the hot air unit 11, and the steaming of the water vapor generated by the water heating The dishes are well known and the instructions for cooking are omitted.

First, water is injected into the water tank 42 before heating.

Next, when the electric power is supplied to the heat generating portion 43c, the heating of the steam generating device 43 is started. The temperature of the steam generating device 43 is detected by the thermistor 88, and the heat generating portion 43c and the pump means 87 are controlled based on the detection result.

Then, when the detected temperature reaches a certain temperature or higher (when the water can be heated to a temperature of water vapor, here, 170 ° C), the pump means 87 is driven to pass water from the water tank 42 through the pipe 45 to the water supply port of the lid portion 43b. 104 It is supplied into the water vapor generation space 103.

The water supplied to the steam generating space 103 is heated by the heated bottom surface 43g heated by the heat generating portion 43c and the heated side surface 43f, instantaneously vaporized into water vapor, and sent from the discharge port 44 to the heating chamber 28 through the hot air unit 11. .

When the water contacts the high temperature portion of the water vapor generating space 103, a water vapor film is generated between the water and the high temperature portion, and heat conduction is deteriorated, and water droplets are caused to roll on the water vapor film.

The same phenomenon is also generated in the steam generating device 43. When water is supplied to the steam generating space 103, the temperature of the heated bottom surface 43g and the heated side surface 43f is the same as the temperature of the steam generating device 43, and also reaches about 170 °C. Therefore, at the moment when the supplied water comes into contact with the heated bottom surface 43g and the heating side surface 43f, a water vapor film is generated between the water droplets and the heated bottom surface 43g and the heating side surface 43f, and heat conduction is deteriorated until the water completely evaporates, and the water becomes The phenomenon of the water droplets is generated by rolling on the heated bottom surface 43g and the heating side surface 43f.

Moreover, the water droplet sometimes rolls up on the heating side surface 43f.

However, since the front end portion 44a of the discharge port 44 protrudes from the water vapor generation space 103 by only the size (h) between the heating side surface 43f on the side of the discharge port 44 and the discharge port 44, the water droplet cannot exceed this (h). The size is not released from the discharge port 44 to the outside of the steam generating device 43.

Further, even if the hot bottom surface 43g and the heated side surface 43f accumulate the scale, the heat conduction is deteriorated, and the time during which the water droplets vaporize into the water vapor is slightly increased. The water droplets cannot exceed the (h) dimension of the front end portion 44a.

Further, the length of the protruding (h) dimension may be lengthened in accordance with the amount of the scale accumulated, and the lengthening does not cause deterioration of the performance of the steam generating device 43.

Further, in the above embodiment, the steam generating device 43 is set to have a substantially horizontally long shape, and is mounted laterally on the outer side of the hot air box 11a of the hot air unit 11, but does not have to be horizontally long and faces the outside of the hot bellows 11a. Horizontal installation.

In short, the discharge port 44 may protrude from the heating side surface 43f to the side of the steam generating space 103 by only the size (h).

Further, in the above-described embodiment, the heat generating portion 43c is formed in a substantially U shape. However, as shown in Fig. 10, two substantially straight tubular heat generating portions 43c may be provided above and below the steam generating space 103 by casting. It is integrally embedded in the inside of the outer peripheral portion of the vapor generator main body portion 43a.

Further, as shown in Figs. 11 and 12, the front end portion 44a of the discharge port 44 may be formed in a tubular shape so as to protrude from the heating side surface adjacent to the heated bottom surface 43g in the water vapor generation space. The size of (h) is such that the water droplets generated in the water vapor generating space 103 cannot exceed the size of (h) without being discharged from the discharge port 44 to the outside of the steam generating device 43.

As described above, according to the present invention, even if the scale of the accumulated steam in the steam generating device, the heat exchange efficiency of the steam generating device and the water are lowered, it is possible to suppress the water that has not vaporized into steam from leaking from the steam generating device.

1‧‧‧ Ontology

28‧‧‧heating room

43‧‧‧Vapor generating device

43a‧‧‧Vapor generator unit body

43b‧‧‧The Ministry

43c‧‧‧Fever Department

43f‧‧‧heated side

43g‧‧‧heated bottom

44a‧‧‧ front end

44‧‧‧Spray outlet

103‧‧‧Water vapor generation space

104‧‧‧Water inlet

Fig. 1 is a perspective view of the body of the heating conditioner of the present invention viewed from the front side.

Fig. 2 is a perspective view of the body of the heating conditioner viewed from the rear side.

Fig. 3 is a cross-sectional view taken along line A-A of Fig. 1.

Fig. 4 is a perspective view showing the state of the inside of the body by opening the door of the heating conditioner of the present invention.

Fig. 5 is a perspective view showing the state inside the body of the heating conditioner.

Fig. 6 is a perspective view showing the inside of the body portion of the steam generating device provided with the heating conditioner of the present invention.

Figure 7 is a perspective view of the outside of the body portion of the vapor generating device.

Figure 8 is a perspective view of the lid portion of the same steam generating device.

Fig. 9 is a cross-sectional view taken along line B-B of the vapor generating device of Fig. 5.

Figure 10 is a front elevational view of the body portion of the vapor generating device of another embodiment.

Figure 11 is a perspective view of the body portion of the vapor generating device of another embodiment.

Fig. 12 is a cross-sectional view showing the main part of the steam generating device of Fig. 11.

43a‧‧‧Vapor generator unit body

43c‧‧‧Fever Department

43d‧‧‧ditch

43e‧‧‧ sealing material

43f‧‧‧heated side

43g‧‧‧heated bottom

44‧‧‧Spray outlet

102‧‧‧ bolt seat

103‧‧‧Water vapor generation space

Claims (1)

A heating conditioner comprising: a heating chamber for storing food; and a steam generating device that supplies water vapor generated by heating the water to the heating chamber; wherein the steam generating device includes a steam generating space The heat generating portion is surrounded by the outer surface of the water vapor generating space; the water supply port is for supplying water into the water vapor generating space; and the water discharging port is cylindrical, protruding The both sides of the heating side surface are provided above the heating side surface on the heating chamber side of the plurality of heating side surfaces for supplying water vapor from the steam generating space to the heating chamber; and the water supply port is supplied to the water The water in the vapor generation space is heated by the heated bottom surface and the heated side surface, instantaneously becomes water vapor and discharged from the discharge port, and the heat conduction is deteriorated by the water vapor film generated in the steam generating space. In the case where the aforementioned water becomes water droplets rolling up on the heating side, the water droplet cannot pass through the protrusion 2.5 mm to 5 mm to the front. Because of water vapor within the discharge port of the cylindrical space, the water droplet is not discharged into the heating chamber.