JP6423479B2 - Electric heater for cooking - Google Patents

Description

  The present invention relates to an electric heater for cooking.

  Patent Document 1 discloses a hot plate for preventing the spread and scattering of oily smoke generated during cooking of grilled meat and the like, preventing the oil from scattering to the periphery, and effectively utilizing the cooking surface. Is disclosed.

  The hot plate includes a main body case that forms an exterior body, a cooking plate that is stored in and out of the main body case, a heater that heats the cooking plate, and a smoke absorbing means that absorbs oil smoke generated during cooking. An uneven plate surface is formed on the cooking plate surface of the cooking plate, and a plurality of juice drop openings are formed at positions other than the central portion of the uneven plate surface. The mouth is configured to be used as a smoke inlet from the smoke absorbing means.

  Since it is configured to use the spout outlet formed dispersed on the cooking plate as a smoke outlet from the smoke-absorbing means, it improves the smoke-absorbing efficiency by preventing the spread or scattering of the oil smoke as well as the soup of the cooked juice. be able to.

  In Patent Document 2, as an exhaust system for cooking that can effectively evacuate while preventing diffusion of smoke and odor, an air curtain is formed around the cooking unit by an upward air flow. There has been proposed an exhaust system for heating cooking characterized in that it is provided with a blowing means, and smoke and odors from cooking are blocked by this air curtain and sucked into a forced exhaust port installed at a high place .

JP 2001-137126 A Japanese Patent Laid-Open No. 2004-125365

  However, a spout formed by being dispersed on the cooking plate against the rising flow of high-temperature steam or oily smoke generated from the heated object such as meat or side dish heated on the cooking plate heated to a high temperature by the heater Therefore, it was very difficult to absorb the smoke downward from the cooking plate, and most of the steam and oil smoke were diffused into the upper space as they were.

  Therefore, if the suction force for sucking smoke downward from the cooking plate through the juice outlet is increased, steam and oily smoke will be sucked with relatively low temperature air in the space above the cooking plate. There has been a problem that it causes an inconvenient situation that the heated object is cooled.

  In addition, the exhaust system described in Patent Document 2 is directed to a cooking stove that is fixedly installed in a kitchen, and air flows upward to guide steam and oil smoke to a range hood installed at a high place. This is a system in which an air curtain is formed and cannot be applied to a portable electric heater for cooking used in a place away from a range hood.

  The objective of this invention is providing the electric heater for cooking which can suppress effectively the spreading | diffusion of the vapor | steam and oil smoke to a room | chamber interior regardless of a use place.

  In order to achieve this object, the characteristic configuration of the cooking electric heater according to the present invention includes, as described in claim 1, a main body case in which an opening having a rectangular shape in plan view is formed on the upper portion, A rectangular liquid receiving plate inserted from the opening and supported by the main body case, a rectangular heating plate accommodated in the liquid receiving plate, and disposed between the liquid receiving plate and the heating plate One of the pair of side walls along the longitudinal direction of the opening, of the side walls formed on the liquid receiving plate so as to sandwich the heating plate. A plurality of suction apertures are arranged along the extending direction of the heating plate, and a plurality of discharge apertures are arranged along the extending direction of the heating plate. Hole and suction The aperture area ratio of the apertures is set in the range of 1: 2 to 1: 3, and the aperture area ratio of the total discharge aperture and the suction aperture is in the range of 1: 1.6 to 1: 2. Air that is set and sucked from the suction opening by the suction fan accommodated in the main body case flows below the liquid receiving plate and is discharged from the discharge opening, and is discharged from the discharge opening. The air is configured to flow through the upper side of the heating plate to form a circulating flow that is sucked from the suction opening.

  The air flowing in from the plurality of suction apertures formed in one of the pair of side wall portions arranged so as to sandwich the liquid receiving plate having a rectangular shape in plan view by the suction fan flows below the liquid receiving plate, The air discharged from a plurality of discharge openings formed in the side wall portion of the gas flows along the space above the heating plate toward one side wall portion together with vapor and oil smoke generated from the heated object on the heating plate. Then, the air is sucked from a plurality of suction apertures formed in one side wall portion.

  Since the aperture area ratio between the single discharge aperture and the suction aperture is set in the range of 1: 2 to 1: 3, the flow rate of air discharged from each discharge aperture toward the heating plate is It becomes relatively large, and due to this large flow rate, diffusion of vapor and smoke generated from the heated object on the heating plate to the upper space is prevented, and it is efficiently guided toward the suction opening, Even air with a gradually reduced flow velocity is sucked from a suction hole having a large hole area without diffusing to the periphery. When the area ratio of the single discharge hole and the suction hole deviates from the range of 1: 2 to 1: 3, in any case, the steam generated from the object to be heated on the heating plate Oil smoke is less likely to be sucked efficiently.

  And the opening area ratio of all the discharge openings and the suction openings is set in the range of 1: 1.6 to 1: 2, and a larger amount of air than the amount of air discharged from all the discharge openings Since it is configured to be able to suck from the suction opening, air containing steam and smoke flowing from the upper space of the heating plate to the vicinity of the suction opening is easily sucked together with the surrounding air, and a stable air curtain function can be realized. . When the ratio of the area of all the discharge openings to the suction openings deviates from the range of 1: 1.6 to 1: 2, in any case, the steam generated from the heated object on the heating plate Oil smoke is less likely to be sucked efficiently.

As described in the second aspect, the second characteristic configuration is that, in addition to the first characteristic configuration described above, the discharge opening is formed in a vertically long rectangular shape.

In the third feature configuration, as described in claim 3, in addition to the first or second feature configuration described above, the air sucked from the suction opening by the suction fan is It is in the point which flows through the ventilation path formed between the said liquid receiving plates, and is discharged from the said discharge opening.

The fourth characterizing feature of the can, as noted in the claim 4, in addition the first above the third one feature structure of the liquid aspirated steam and smoke with air from the suction opening After condensing on the bottom surface of the receiving plate and condensing, it is configured to form a circulation flow that discharges from the discharge opening and flows through the heating plate and sucks from the suction opening. .

  Steam or oil smoke sucked together with air from the suction opening collides with the bottom surface of the liquid receiving plate, whereby liquid components such as oil are condensed on the bottom surface of the liquid receiving plate and the oil components are separated.

In the fifth feature configuration, as described in claim 5 , in addition to any of the first to fourth feature configurations described above, the suction fan has a plurality of plate-like blades arranged in a cylindrical shape. It is composed of a sirocco fan, and is arranged so that the plate-like blades extend directly under a space formed between a side wall portion in which the suction opening is formed and a side wall portion of the main body case, A pair of upper and lower inclined guide plates is provided to discharge air sucked by the plate-like blades from below the liquid receiving plate toward the bottom surface of the liquid receiving plate.

  The air sucked by the plate-like blades is discharged toward the bottom surface of the liquid receiving plate by a pair of upper and lower inclined guide plates, so that the vapor and oil smoke sucked together with the air are condensed and removed on the bottom surface of the liquid receiving plate. Then, air from which liquid components such as oil are removed is discharged and discharged from the opening.

In the sixth feature configuration, as described in claim 6 , in addition to the fifth feature configuration described above, the deflection guide deflects upward a part of the air discharged along the lower inclined guide plate. The board is provided.

  The air guided along the lower inclined guide plate is blocked by the deflection guide plate and deflected upward, and is guided to the bottom surface of the liquid receiving plate together with the air guided along the upper inclined guide plate. .

  As described above, according to the present invention, it is possible to provide an electric heater for cooking capable of effectively suppressing the diffusion of steam and oil smoke into the room regardless of the place of use.

Perspective view of cooking electric heater Explanatory drawing of components of electric heater for cooking (A) is explanatory drawing of the cross section of the electric heater for cooking, (b) is explanatory drawing of the flow of the air discharged from the discharge opening formed in the liquid receiving plate, and sucked from the suction opening

Hereinafter, an example of the electric heater for cooking by this invention is demonstrated based on drawing.
As shown in FIGS. 1 and 2, the cooking electric heater 100 includes a main body case 1, a water receiving tray 2, a liquid receiving plate 3, a heater 4, a heating plate 5, and a power cable 9. Yes.

  The main body case 1 is formed in a substantially rectangular parallelepiped shape with rounded corners, and an opening 1A having a rectangular shape in plan view is formed in the upper part. The water receiving tray 2 is a tray filled with water so as to receive moisture and oil dripping from the liquid receiving plate 3 during cooking. The water receiving tray 2 is inserted from the opening 1A and installed on the bottom surface of the main body case 1.

  The liquid receiving plate 3 is formed in a substantially rectangular shape in plan view that is the same as the opening 1A, and is a plate that receives moisture and oil dripping from the heating plate 5 during cooking, and extends along the long side (longitudinal) of the main body case 1. A pair of left and right side wall portions 3A and 3B is formed in the center, and a circular recess 3D is formed in the central portion of the plate. A plurality of openings are formed in the recess 3D so as to drop water and oil into the water tray 2 (see FIG. 3B). A flange portion 3C is formed on the upper sides of the left and right side wall portions 3A and 3B, and the flange portion 3C is disposed so as to be supported by the left and right side walls of the main body case 1.

  The heater 4 includes a pair of supported portions 4A and 4B supported by the front and rear support portions in the short side direction of the main body case 1, and a linear heating element 4C supported between the pair of supported portions 4A and 4B. It has. A connecting portion with a power cable 9 for supplying power to the heating element 4C is provided on the side end surface of the support portion 4B, and a power switch 4D, a temperature adjustment switch 4E, and a fan start switch 4F are provided on the top surface.

  The heating plate 5 is formed in a rectangular shape in plan view that is substantially the same as the opening 1A, and is disposed inside the liquid receiving plate 3 and above the heating element 4C. The heating plate 5 includes a heating surface in which concave and convex portions are regularly formed in the vertical and horizontal directions, and an elliptical opening in which the major axis of the heating plate 5 extends in the longitudinal direction is formed in each concave portion.

  Among the side wall portions 3A and 3B formed on the liquid receiving plate 3 so as to sandwich the heating plate 5, a plurality of suction apertures 30 are arranged in one side wall portion 3B along the longitudinal extension direction of the heating plate 5. At the same time, a plurality of discharge openings 31 are arranged in the other side wall 3 </ b> A along the longitudinal extension direction of the heating plate 5.

  A sirocco fan, in which a plurality of plate-like blades 6A serving as a suction fan 6 are arranged in a cylindrical shape at the bottom of the main body case 1 and below the side wall portion 3B in which the suction opening 30 is formed, Is arranged along the longitudinal direction of the main body case 1.

  The suction fan 6 is configured to be inserted and fixed from the back surface of the main body case 1 via an opening / closing lid 8 provided at the bottom of the main body case 1.

  The air flowing in from the plurality of suction apertures 30 formed in one of the pair of side wall portions 3A and 3B arranged so as to sandwich the liquid receiving plate 3 having a rectangular shape in plan view by the suction fan 6 One side wall portion flows downward and is discharged from a plurality of discharge apertures 31 formed in the other side wall portion 3A, and the discharged air together with steam and oil smoke generated from the heated object on the heating plate 5 It flows in the upper space of the heating plate 5 toward 3A, and is sucked from a plurality of suction apertures 30 formed in one side wall 3B.

  As shown in FIG. 3A, the plate-like blade 6 </ b> A extends directly below the space S <b> 1 formed between the side wall 3 </ b> B in which the suction opening 30 is formed and the side wall of the main body case 1. And a pair of upper and lower inclined guide plates 9A and 9B for discharging air sucked by the plate-like blade 6A from below the liquid receiving plate 3 toward the bottom surface of the liquid receiving plate 3, and a lower inclined guide A deflection guide plate 9C for deflecting upward a part of the air discharged along the plate 9B is provided.

  The air sucked by the plate-like blades 6A by the pair of upper and lower inclined guide plates 9A and 9B is discharged toward the bottom surface of the liquid receiving plate 3, so that the vapor and oil smoke sucked together with the air are the bottom surface of the liquid receiving plate 3. After being condensed and removed, the air is discharged and discharged from the opening 31. The liquid component condensed and adhered to the bottom surface of the liquid receiving plate 3 is dropped onto the water receiving tray 2 and collected.

  Then, the air guided along the lower inclined guide plate 9B is blocked by the deflection guide plate 9C and deflected upward, and on the bottom surface of the liquid receiving plate 3 together with the air guided along the upper inclined guide plate 9A. Guided efficiently.

  That is, the air sucked from the suction opening 30 by the suction fan 6 accommodated in the main body case 1 flows below the liquid receiving plate 3 and is discharged and discharged from the opening 31, and is discharged from the discharge opening 31. A circulating flow is formed in which the air flows above the heating plate 5 and is sucked from the suction apertures 30.

  As shown in FIG. 3 (c), the suction opening 30 and the discharge opening 31 are rectangular longitudinal holes whose bottom sides are located at substantially the same height as the upper surface of the heating plate 5. It is punched and formed so as to be arranged in plural along 3B.

  More specifically, the opening area ratio between the single discharge opening 31 and the suction opening 30 is set in the range of 1: 2 to 1: 3, and the total discharge opening 31 and the suction opening 30 The aperture area ratio is set in the range of 1: 1.6 to 1: 2.

  As shown in FIG. 3B, the opening area ratio between the single discharge opening 31 and the suction opening 30 is set in the range of 1: 2 to 1: 3. The flow rate of the air discharged from 31 toward the heating plate 5 becomes relatively large, and this large flow rate prevents the vapor and oil smoke generated from the heated object on the heating plate from diffusing into the upper space, so that the suction opening is stopped. It will be guided efficiently towards the hole.

  Thereafter, the air flow rate gradually decreases, but the air is smoothly sucked from the suction hole 30 having a large hole area without diffusing to the periphery. If the aperture area ratio between the single discharge aperture 31 and the suction aperture 30 deviates from the range of 1: 2 to 1: 3, it will be generated from the object to be heated on the heating plate 5 in any case. Steam and oily smoke are not easily sucked and diffused into the surrounding space.

  The opening area ratio of all the discharge openings 31 and the suction openings 30 is set in a range of 1: 1.6 to 1: 2, and a larger amount of air than the amount of air discharged from all the discharge openings 31 is obtained. Is configured to be able to suck in from all the suction apertures 30, so that the air containing the steam and oil smoke flowing from the space above the heating plate 5 to the vicinity of the suction aperture 30 is easily sucked together with the surrounding air, and is stable. Air curtain function can be realized. When the hole area ratio between the total discharge opening 31 and the suction opening 30 deviates from the range of 1: 1.6 to 1: 2, it occurred in any case from the object to be heated on the heating plate. Steam and oily smoke are not sucked efficiently.

  The size of the heating plate 5 is set to 380 mm × 230 mm, the rotational speed of the suction fan 6 is set to 3000 rpm, and the temperature of the heating plate 5 is in the range of 120 ° C. to 230 ° C. Liquid receiving plate having an aperture area ratio in the range of 1: 2 to 1: 3, and an aperture area ratio of all discharge apertures 31 and suction apertures 30 in the range of 1: 1.6 to 1: 2. When the meat was baked using No. 3, it was found that the oil can be cooked satisfactorily with almost no oil smoke spreading around. Then, the liquid receiver in which either the ratio of the opening area of the single discharge opening 31 and the suction opening 30 or the ratio of the opening area of the entire discharge opening 31 and the suction opening 30 deviates from the above range. When meat was baked using the plate 3, it was also found that in all cases, oil smoke diffused around.

  As mentioned above, although preferred embodiment of this invention was described, embodiment mentioned above is only one aspect | mode of this invention, this invention is not limited by this description, Specific shape, size, and material of each part Needless to say, the design can be changed and modified as appropriate within the range in which the effects of the present invention are achieved.

1: Main body case 1A: Opening 2: Water receiving tray 3: Liquid receiving plate 30: Suction opening 31: Discharge opening 3A, 3B: Side wall part 4: Heater 5: Heating plate 5
6: Suction fan 100: Electric heater for cooking

Claims (6)

A main body case in which an opening having a rectangular shape in plan view is formed at the top, a liquid receiving plate in plan view rectangular shape inserted through the opening and supported by the main body case, and a rectangular shape in plan view accommodated in the liquid receiving plate An electric heater for cooking including a heating plate and a heater disposed between the liquid receiving plate and the heating plate,
Among the side wall portions formed on the liquid receiving plate so as to sandwich the heating plate, a plurality of suction apertures extend along the extending direction of the heating plate in one of the pair of side wall portions along the longitudinal direction of the opening. And a plurality of discharge openings on the other side are arranged along the extending direction of the heating plate,
The aperture area ratio between the single discharge aperture and the suction aperture is set in the range of 1: 2 to 1: 3, and the aperture area ratio between the total discharge aperture and the suction aperture is 1: 1. .6 to 1: 2 range,
Air sucked from the suction opening by the suction fan accommodated in the main body case flows below the liquid receiving plate and is discharged from the discharge opening, and the air discharged from the discharge opening is An electric heater for cooking configured to form a circulating flow that flows above the heating plate and is sucked from the suction opening. The cooking electric heater according to claim 1, wherein the discharge opening is formed in a vertically long rectangular shape. The air sucked from the suction opening by the suction fan flows through a ventilation path formed between the main body case and the liquid receiving plate, and is discharged from the discharge opening. Electric heater for cooking. Vapor and smoke sucked together with air from the suction opening are applied to the bottom surface of the liquid receiving plate and condensed, then discharged from the discharge opening, and flowed above the heating plate and sucked from the suction opening. The cooking electric heater according to any one of claims 1 to 3, wherein a circulating flow is formed. The suction fan is composed of a sirocco fan in which a plurality of plate-like blades are arranged in a cylindrical shape, and a space formed between a side wall portion where the suction opening is formed and a side wall portion of the main body case. A pair of upper and lower inclined guide plates which are arranged so that the plate-like blades extend directly below and discharge air sucked by the plate-like blades from below the liquid receiving plate toward the bottom surface of the liquid receiving plate. The electric heater for cooking according to any one of claims 1 to 4, wherein the electric heater is provided. 6. The cooking electric heater according to claim 5, further comprising a deflection guide plate for deflecting upward a part of the air discharged along the lower inclined guide plate.