JP2007017033A - Induction heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain reduced product cost while efficiently removing smell or oily smoke generated in a roaster part through a simple structure. <P>SOLUTION: In this induction heating cooker, a roaster part 4, a heating coil 6, a control part 10 for driving the roaster part 4 and the heating coil 6, an exhaust duct 21 discharging smoke of the roaster part 4 out of a main body, a cooling fan 11 cooling the heating coil 6 and the control part 10, and a catalyst 19 provided in an air distributing passage of the exhaust duct 21, and a catalyst heating heater 15 are provided within the main body 1. The exhaust duct 12 includes an air mixing port 21c in which air from the cooling fan flows. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an induction heating cooker provided with a heating coil and a roaster portion in a main body.

  In this type of induction heating cooker, when fish, meat, or other food to be cooked is heated in the roaster section, odors, smoke, and various organic substances such as oil, volatile components, and decomposition components are generated in the roaster section. However, there is a problem in that it is uncomfortable during cooking or the next cooking by being exhausted outside the main body.

  In order to solve such problems, a conventional induction heating cooker is provided with a roaster section, an exhaust path communicating with the roaster section and outside air, a catalyst installed in the middle of the exhaust path, and an exhaust path leading to the catalyst. It consists of a deodorizing device consisting of a heater for heating the catalyst, a smoke removal fan installed after the deodorization device in the exhaust path, and a motor that drives the smoke removal fan. Energizes the heater, activates the catalyst, removes generated smoke, etc., and exhausts it with a smoke removal fan outside the main body to prevent the room air from being polluted with smoke or odor (for example, patent document) 1).

JP 2003-144333 A

  However, in the above prior art, when the size of the induction heating cooker main body is not restricted, the deodorizing device, the smoke removal fan and its motor are freely incorporated in the outer rear part or upper part of the roaster part, and the roaster part It is possible to purify the unpleasant odor generated in the air and exhaust it outside the main body. However, if the product dimensions are adjusted to the system kitchen as in the built-in induction heating cooker, the effective space is limited, so that odors and oily smoke generated in the roaster section are not exhausted outside the main body. It has been difficult to efficiently purify and deodorize the deodorizing catalyst by arranging the deodorizing catalyst, the heater for heating the catalyst, the exhaust fan, the motor, the exhaust duct and the like in a well-balanced manner.

  In addition, since the effective space is limited, the structure becomes complicated and the cost increases.

  The present invention has been made to solve the above-described problem. In claim 1, a roaster unit, a heating coil, a control unit for driving the roaster unit and the heating coil, and the roaster unit are provided in a main body. An induction heating cooker provided with an exhaust duct for exhausting the smoke from the main body, a cooling fan for cooling the heating coil and the control unit, a catalyst provided in an air flow path of the exhaust duct and a heater for heating the catalyst The air duct is provided with an air mixing port through which wind from the cooling fan flows.

  According to a second aspect of the present invention, the exhaust duct has an L shape having an intake port at one end and an exhaust port at the other end, and the air mixing port is provided on a surface facing the exhaust port.

  According to a third aspect of the present invention, an air guide plate is provided in the vicinity of the aeration port.

  According to a fourth aspect of the present invention, the opening area of the aeration port is 5% to 20% of the opening area of the exhaust duct.

  According to the first aspect of the induction heating cooker of the present invention, according to the first aspect, the wind from the cooling fan is caused to flow into the air mixing port provided in the exhaust duct, and the roaster portion is caused by the negative pressure suction action. By smoothing the exhaust flow, it is possible to improve the catalyst performance without increasing the number of components, and to efficiently clean and deodorize the oil and smoke, and because of the simple structure, the product is low It also has an excellent effect on cost.

  According to the second aspect of the present invention, the exhaust duct is formed in an L shape, an air mixing port is provided on a surface facing the exhaust port, and air is introduced from the air mixing port toward the exhaust port of the exhaust duct. The air flowing in from the mixing port is less likely to flow back into the roaster section, and it is easy for negative pressure suction to occur, smoothing the flow of exhaust from the roaster section, improving catalyst performance, purifying and deodorizing oil smoke. This can be done efficiently.

  According to the third aspect of the present invention, since the air guide plate is provided in the vicinity of the air mixing port, it becomes easy for the air from the cooling fan to flow into the exhaust duct and the air mixing provided in the cooling fan and the exhaust duct. Since the degree of freedom of the arrangement of the mouth is increased, the structure can be further simplified, and there is an excellent effect in reducing the cost of the product.

  According to the fourth aspect of the present invention, the opening area of the aeration port provided in the exhaust duct is set to 5% to 20% of the opening area of the exhaust duct, so that the air flowing from the aeration port passes through the catalyst. The flow of the flow is not hindered to reduce the efficiency of oil smoke purification and deodorization, and the smoke in the roaster section is not exhausted from the exhaust port to the outside of the cooker body without being purified.

  An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an external perspective view of an induction heating cooker incorporated in a system kitchen for explaining an embodiment of the present invention, and FIG. 2 is a top view showing the configuration of the induction heating cooker main body. The top case 7, the roaster door 4a, and the operation unit 5 are in a removed state. FIG. 3 is also a front view of the induction heating cooker main body, in which the heating coil 6, the top case 7, the roaster door 4a, and the operation unit 5 are removed. 4 is a BB longitudinal sectional view of FIG. 2, FIG. 5 is an AA longitudinal sectional view of FIG. 2, and FIG. 6 is an AA longitudinal sectional view of FIG.

  In the figure, reference numeral 1 denotes a main body of the induction heating cooker, which has an opening 1a serving as an intake / exhaust passage on the upper surface of the rear portion, and is installed in the system kitchen 24 by being dropped from the upper surface.

  2 is a container such as a pan, which is to be cooked with an object to be heated.

  Reference numeral 3 denotes a plate made of heat-resistant glass or the like, which is provided on the upper surface of the main body 1 and on which the container 2 is placed.

  A roaster section 4 is provided on the left or right side (the left side in the present embodiment) of the main body 1 below the heating coil 6 to be described later, and opens and closes an opening 4b for taking in and out food such as fish 42. 4a is provided. In addition, lower roaster heaters 16 and 17, a saucer 40, a grill net 41, and the like are incorporated in the interior, and a fish 42 and the like can be placed on the grill net 41 for baking. .

  An operation unit 5 is disposed on the right front surface of the main body 1 so as to be positioned beside the roaster unit 4 and performs power on / off, heating setting, and the like.

  Reference numeral 6 denotes a heating coil, which is arranged approximately horizontally on the left and right sides of a top case 7 installed on the upper part of the main body 1 below the plate 3 and induction-heats the container 2.

  Reference numeral 8 denotes a control unit, which is provided in the main body 1 on the opposite side of the roaster 4 at the lower part of the top case 7, and is installed in the case 9, for example, a substantially hollow box-shaped case 9 made of resin. A control unit 10 that controls the heating coil 6 and the roaster unit 4 and a cooling fan 11 that mainly cools the drive element of the heating coil 6 are configured.

  A case intake 12 is provided on the upper surface of the rear part of the case 9 and sucks cooling air into the case 9 through the opening 1a on the upper surface of the rear part of the main body 1.

  Reference numerals 13 and 14 denote cooling ports, which are provided on the upper surface on the front side of the case 9 and the upper surface on the roaster unit 4 side corresponding to the two heating coils 6 arranged in the top case 7. Air is blown to the heating coil 6 to cool the heating coil 6.

  Next, the configuration of the main part of the roaster unit 4 will be described. 18 is a roaster case, and the top surface, side surface, bottom surface, and back surface of the inner surface to which dirt is attached by roaster cooking, methylpolysiloxane having a three-dimensional network molecular structure and polysiloxane having a linear molecular structure, mica powder, Heat resistance mainly composed of a single product or a mixture of scaly powder or fibrous powder selected from metal oxide-coated mica powder, graphite, talc, plate-like iron oxide pigment, scaly metal powder, and potassium titanate fiber The anti-stain coating material 18a is coated and cured by heating. Further, the front surface of the roaster case 18 is opened by the opening 4b so that food such as fish 42 can be taken in and out.

  Reference numerals 16 and 17 denote an upper roaster heater and a lower roaster heater, which are arranged above and below the roaster case 18 so that the fish 42 and the like can be baked from the upper surface and the lower surface (in this embodiment, a double-sided roaster is described. However, the roaster heater may be single-sided baking only on the upper surface or the lower surface).

  Reference numeral 23 denotes an air inlet, which is provided on the contact surface between the lower side of the opening 4 b on the front surface of the roaster section 4 and the roaster door 4 a and allows outside air to enter the roaster section 4. The opening 4 b and the roaster door 4 a are in close contact with each other on the surface other than the air inlet 23, so that the outside air does not flow into the roaster portion 4.

  Reference numeral 21 denotes an exhaust duct for passing odors and oily smoke generated when the cooking object is heated in the roaster unit 4 through a catalyst 19 which will be described later and exhausting it out of the main body 1, as shown in FIG. The upper part of the case 18 is connected to the rear side.

  The exhaust duct 21 is provided with an inclination angle that increases toward the rear side of the main body 1, and an exhaust port 21 b of the exhaust duct 21 is provided with an exhaust passage provided on the upper surface of the rear portion of the main body 1. It is provided so as to continue to the opening 1a.

  Further, the inner surface of the exhaust duct 21 is methylpolysiloxane having a three-dimensional network molecular structure and polysiloxane having a linear molecular structure, mica powder, metal oxide-coated mica powder, graphite, talc, and plate-like iron oxide pigment. And a heat-resistant and stain-resistant film covering material 18a mainly composed of a scale-like powder selected from scale-like metal powder and potassium titanate fiber, or a single product or a mixture of fibrous powder, and heat-cured. It has become. In this embodiment, the opening area of the exhaust duct 21 is 100 mm × 17 mm.

  A catalyst 19 is provided in the exhaust duct 21 at the connection point between the exhaust duct 21 and the roaster case 18 for deodorizing and removing odors and oily smoke generated when roaster cooking is performed.

  A catalyst heater 15 is provided on the front side of the catalyst 19 so as to oppose the catalyst 19 and heats the catalyst 19 to activate it. In this embodiment, the catalyst heating heater 15 is on the front side of the catalyst 19, but may be on the rear side where the catalyst 19 is sufficiently heated.

  An air mixing port 21c is provided in the exhaust duct 21 and is provided in the vicinity of the exhaust port 21b in the vicinity of the exhaust port 21b of the exhaust duct 21. In this embodiment, the opening area is 10 mm × 12 mm. The opening area of the duct 21 is about 14%.

  Reference numeral 22 denotes a blower fan, which is provided in the main body 1 so as to blow air to an air mixing port 21c provided in the exhaust duct 21, and the air blown by the blower fan 22 is supplied from the air mixing port 21c to the exhaust duct 21. It is installed by adjusting the direction of the wind so that it can be smoothly removed from the exhaust port 21b.

  Note that such a blower fan 22 may not be provided exclusively, and a part of the air blown by the cooling fan 11 may be guided by the air path and blown to the air mixing port 21c.

  The exhaust duct 21 may be connected to the rear side rear portion of the roaster case 18 as shown in FIG. In this case, the shape of the exhaust duct 21 is L-shaped, the intake port 21 a at one end of the exhaust duct 21 is connected to the rear side rear portion of the roaster case 18, and the exhaust port 21 b at the other end is connected to the exhaust passage on the rear upper surface of the main body 1. It is provided so as to be continuous with the opening 1a. And the air mixing port 21c is provided in two places, the surface facing the exhaust port 21b of the exhaust duct 21, and the rising part of the exhaust duct 21. An air guide plate 21 d is provided in the vicinity of the air mixing port 21 c provided at the rising portion of the exhaust duct 21, and the air of the blower fan 22 that flows upward from below along the rising portion of the exhaust duct 21. Is received by the air guide plate 21d, and air is easily introduced into the exhaust duct 21 from the air mixing port 21c. The opening area of the exhaust duct 21 of this embodiment is 100 mm × 17 mm, the opening area of the aeration port 21 c is 10 mm × 12 mm, and is about 14% of the opening area of the exhaust duct 21.

  Next, the case where a fish roasting operation is performed with the above-described configuration will be described.

  In addition, about induction heating cooking using the heating coil 6, since it is the same as the past, description is abbreviate | omitted.

  When the user puts food such as fish 42 on the grill net 41 of the roaster unit 4 and operates the operation unit 5 to perform the grilling operation, the upper and lower roaster heaters 16 and 17 and the catalyst heating heater 15 are energized. Start.

  When the interior of the roaster section 4 becomes hot due to the energization of the upper and lower roaster heaters 16 and 17, the heated air rises and accordingly the air inlet provided on the contact surface between the opening 4b and the roaster door 4a. The air flows in from 23, and the air flows toward the exhaust port 21 b of the exhaust duct 21 through the catalyst 19 provided in the exhaust duct 21 at the connection point between the exhaust duct 21 and the roaster case 18.

  As shown in FIG. 5, since the exhaust duct 21 is provided with an inclination angle that increases toward the rear side of the main body 1, the air toward the exhaust port 21 b is at the inclination angle of the exhaust duct 21. However, since the catalyst 19 has a pressure loss, the air flow does not increase so much.

  However, in this embodiment, since there is a flow of air flowing from the air mixing port 21 c toward the exhaust port 21 b of the exhaust duct 21, the air in the roaster section 4 is passed through the catalyst 19 due to the negative pressure suction action generated thereby. A wind flow sucked through the exhaust duct 21 is generated. This moderate air flow passes through the catalyst 19, and the action of the catalyst 19 heated to a predetermined temperature or higher by the catalyst heating heater 15 efficiently purifies and deodorizes the oil smoke. The air is exhausted from the opening 1a on the rear upper surface of the main body 1 to the outside (inside the room) through the exhaust port 21b.

  When the user puts food such as fish 42 on the grill 41 of the roaster unit 4 and repeats cooking of the grilled food, the inner surface of the roaster case 18 and the exhaust duct 21 are eventually poured by the juice, oil, oily smoke, etc. from the cooked food. There is a risk of sticking to the inside.

  However, even if juice or oil is attached to the inner surface of the roaster case 18 or the inner surface of the exhaust duct 21, methylpolysiloxane having a three-dimensional network molecular structure and polysiloxane having a linear molecular structure, mica powder, metal Oxide-coated mica powder, graphite, talc, plate-like iron oxide pigment, scale-like metal powder, scale-like powder selected from potassium titanate fiber, or a single product or mixture of fibrous powder, heat resistance and resistance The inner surface of the roaster case 18 and the inner surface of the exhaust duct 21 that are coated with the fouling coating material 18a and heat-cured do not become uncleanable contamination and can be easily cleaned.

  Next, the case where the L-shaped exhaust duct 21 is connected to the rear side rear portion of the roaster case 18 as shown in FIG. 6 will be described. When the interior of the roaster section 4 becomes hot due to energization of the upper and lower roaster heaters 16 and 17, the heated air rises, and accordingly, the air provided on the contact surface between the opening 4b and the roaster door 4a. Air flows from the inflow port 23, and the air flows toward the exhaust port 21 b of the L-shaped exhaust duct 21 through the catalyst 19 provided in the exhaust duct 21 at the connection point between the exhaust duct 21 and the roaster case 18. However, since the heated air stagnate in the upper part of the roaster portion 4, the flow is weaker than that of the structure shown in FIG.

  However, an air mixing port 21c is provided at two locations, the surface facing the exhaust port 21b of the exhaust duct 21 and the rising portion of the exhaust duct 21, from which a part of the wind of the cold air fan 11 flows into the exhaust duct 21. Due to the negative pressure suction generated by flowing toward the exhaust port 21b, an air flow is generated in which the air in the roaster section 4 is sucked through the exhaust duct 21 via the catalyst 19. Then, when this moderate air flow passes through the catalyst 19, oil smoke is purified and deodorized efficiently by the action of the catalyst 19 heated to a certain temperature or higher by the catalyst heating heater 15, and the exhaust duct 21. Is exhausted to the outside (inside the room) from the opening 1a on the rear upper surface of the main body 1 through the exhaust port 21b.

  Further, the position and the mounting angle of the air guide plate 21d provided in the vicinity of the air inlet 21c provided in the rising portion of the L-shaped exhaust duct 21 shown in FIG. It can be determined by adjusting the positional relationship between the cooling fan 11 and the direction of the wind blown by the cooling fan 11. Therefore, the structure can be simplified by increasing the degree of freedom of arrangement of the air mixing ports 21c provided in the cooling fan 11 and the exhaust duct 21.

  If the opening area of the air mixing port 21c provided in the exhaust duct 21 is less than 5% of the opening area of the exhaust duct 21, the amount of air flowing into the exhaust duct 21 from the air mixing port 21c decreases, and the roaster section 4 As a result, it becomes difficult for the negative pressure suction action to promote the exhaust from the exhaust duct 21, so that an appropriate air flow in the exhaust duct 21 is lost. Further, if the opening area of the air mixing port 21c exceeds 20% of the opening area of the exhaust duct 21, a large amount of air flowing in from the air mixing port 21c hinders the flow of the exhaust flow that has passed through the catalyst 19, thereby reducing the roaster section. As a result of the backflow phenomenon of air to 4, the exhaust of the roaster section 4 leaks from the aeration port 21 c, and a large amount of air flows from the aeration port 21 c, the flow of exhaust air becomes stronger. Therefore, a phenomenon occurs in which the exhaust gas cannot be completely treated by the catalyst 19 and is exhausted from the exhaust port 21b without being purified. Therefore, it is appropriate that the opening area of the aeration port 21c provided in the exhaust duct 21 is in the range of 5% to 20% of the opening area of the exhaust duct 21, thereby improving the catalyst performance of the catalyst 19 and reducing the amount of oil smoke. Purification and deodorization can be performed efficiently.

  As described above, the wind from the cooling fan 11 is caused to flow into the air mixing port 21c provided in the exhaust duct 21, and the flow of exhaust gas from the roaster section 4 is smoothed by the negative pressure suction action, so that the number of components is increased. Thus, the catalyst performance can be improved without any problem, and the oil smoke can be purified and deodorized efficiently, and the structure is simple, and the cost is reduced.

  Further, the exhaust duct 21 is formed in an L shape, an air mixing port 21c is provided on the surface facing the exhaust port 21b, and air is introduced from the air mixing port 21c toward the exhaust port 21b of the exhaust duct 21. The air flowing in from the port 21c is less likely to flow back to the roaster section 4 and easily causes a negative pressure suction action, smoothing the flow of exhaust gas from the roaster section, improving catalyst performance, purifying and deodorizing oil smoke Can be performed efficiently.

  Further, since the air guide plate 21d is provided in the vicinity of the air mixing port 21c, it becomes easy for the air from the cooling fan to flow into the exhaust duct 21, and the arrangement of the air mixing port 21c provided in the cooling fan and the exhaust duct 21 is facilitated. As the degree of freedom increases, the structure can be further simplified, and there is an excellent effect in reducing the cost of the product.

  Further, by setting the opening area of the air mixing port 21 c provided in the exhaust duct 21 to 5% to 20% of the opening area of the exhaust duct 21, the air flowing in from the air mixing port 21 c flows through the catalyst 19. The flow is not hindered and the efficiency of oil smoke purification and deodorization is not reduced, and the smoke in the roaster section 4 is not exhausted outside the cooker body 1 without purifying the smoke in the roaster section 4 from the exhaust port 21b.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external appearance perspective view of the state which incorporated the induction heating cooking appliance explaining one Example of this invention in the system kitchen. It is a top view which similarly shows the structure of an induction heating cooking appliance main body. It is a front view of an induction heating cooking appliance main body similarly. FIG. 3 is a BB vertical sectional view of FIG. 2. It is AA longitudinal cross-sectional view of FIG. It is the AA longitudinal cross-sectional view of FIG. 2 which is another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 4 Roaster part 6 Heating coil 10 Control part 11 Cooling fan 15 Heater for catalyst heating 19 Catalyst 21 Exhaust duct 21a Intake port 21b Exhaust port 21c Air mixing port 21d Wind guide plate

Claims (4)

In the main body (1), a roaster section (4), a heating coil (6), a control section (10) for driving the roaster section (4) and the heating coil (6), and the roaster section (4) An exhaust duct (21) that exhausts smoke to the outside of the main body (1), a cooling fan (11) that cools the heating coil (6) and the control unit (10), and an air flow path of the exhaust duct (21) In the induction heating cooker provided with the catalyst (19) and the catalyst heating heater (15) provided in the air inlet (21c) through which the wind from the cooling fan (11) flows into the exhaust duct (21) An induction heating cooker characterized in that it is provided. The exhaust duct (21) has an L-shape having an intake port (21a) at one end and an exhaust port (21b) at the other end, and the aeration port (21c) is on a surface facing the exhaust port (21b). The induction heating cooker according to claim 1, wherein the induction heating cooker is provided. The induction heating cooker according to claim 1 or 2, wherein an air guide plate (21d) is provided in the vicinity of the aeration port (21c). The induction heating cooker according to any one of claims 1 to 3, wherein an opening area of the aeration port (21c) is 5% to 20% of an opening area of the exhaust duct (21).

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