Flyer

Abstract

To provide an IH heating fryer that has a large frontage width, and can be used in a medium or large-sized kitchen.SOLUTION: A fryer 1 comprises a body frame 2, an oil tank 10 for storing frying oil, an IH coil 20 arranged below an oil tank bottom 13, and a cooling mechanism 9 for blowing air to the coil. The cooling mechanism comprise an air intake port 90 for taking in air from the periphery of a bottom part of the body frame 2, an air passage 93 formed below the coil 20, a fan 91 for passing air to the air passage 93 from the air intake port 90, and an exhaust port 47 for exhausting air from the oil tank bottom 13 in a frontage width center part on a back side of the oil tank 10.SELECTED DRAWING: Figure 1

Description

【Technical Field】 【0001】 The present invention relates to a fryer for frying various food materials using oil, which is used in a commercial kitchen of a restaurant or the like. In particular, it relates to a fryer having a wide frontage (side facing the cook) and being easy to use. 【Background Art】 【0002】 Patent 5436463 discloses a fryer suitable for installation in a small convenience store. Since this fryer is an IH heating type in which an electromagnetic coil is disposed on the outer surface of the bottom of the oil tank, it is easy to clean the oil tank. Further, the lowermost part of the oil tank is a cool zone, which suppresses the oxidation of the fried scraps and improves the retention of the oil. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Patent 5436463 【Disclosure of the Invention】 【Problems to be Solved by the Invention】 【0004】 An object of the present invention is to provide an IH heating fryer that maintains the features of the fryer of Patent 5436463 and has a wide frontage and can be used in medium and large-sized kitchens. 【Means for Solving the Problems】 【0005】 In this "Means for Solving the Problems" and "Claims", the reference numerals of each part of the attached drawings are shown in parentheses, but this is for reference only and is not intended to limit the scope of rights to those of the attached drawings. 【0006】 The fryer (1) of the present invention includes a main body frame (2), an oil tank (10) supported on the upper part of the main body frame for storing frying oil, and an IH coil (20) disposed below the oil tank for heating the oil tank. An inclined bottom surface (13) located at the relatively peripheral area of ​​the bottom of the oil tank in a plan view, which slopes downward towards the center of the bottom of the oil tank. ​ Applicable IH The device comprises a cooling mechanism (9) that blows air onto the coil, and the cooling mechanism includes an air intake (90) that takes in air from around the bottom of the main frame (2), and IH Formed below the coil (20) Under the coil The air passage (93) and the air intake (90) Under the coil A fan (91) that directs air into the air passage (93), and the center of the opening width at the back of the oil tank bottom (13) Under the coil It is characterized by having an exhaust port (47) for exhausting air from an air passage (93). 【0007】 In a deep fryer (1) with a wide opening and bottom induction heating, the IH coil (20) in the center of the width at the back is not cooled sufficiently, causing the temperature of the coil in that area to rise easily. The "opening" refers to the side where the cook stands and loads and unloads food, or its width. The side where the cook stands is called the "front," and the opposite side is called the "back." The "center of the opening" refers to the center in the left-right direction from the cook's perspective. In the deep fryer of the present invention, the IH coil (20) in that area can be sufficiently cooled by sending air to the center of the opening at the back before exhausting it. The allowable temperature of the IH coil is 130°C, for example. 【0008】 The cooling air intake (90) is located around the bottom of the main frame (2), for example, on the bottom surface, to draw in air from near the floor of the kitchen. Generally, several heat-generating devices are in operation in a kitchen, and due to the environment where radiant heat and exhaust heat are emitted, the temperature of the air near the bottom of the fryer body is relatively low. By drawing in cooling air from the coolest possible area, the cooling effect of the IH coil and inverter can be enhanced. It is preferable to provide an exhaust pipe (4) at the end of the exhaust port (47), which extends upward from the rear of the fryer main frame (2) and exhausts air upward. 【0009】 In the fryer (1) of the present invention, the oil tank (10) is The aforementionedIt has an inclined bottom surface (13) and a waste collection section (14) connected to the lower side of the inclined bottom surface and located relatively centrally in a plan view, the IH coil (20) is located on the lower outer side of the inclined bottom surface (13), and the lower outer side of the waste collection section (14) bottom It is preferable that an air passage (92) is provided. 【0010】 The residue collection section (14) is lower than the IH coil (20), thus becoming a cool zone that is not heated much. In addition, the lower part of the residue collection section (14) is cooled by the cooling air flowing through the air passage (92). This suppresses the temperature rise of the frying oil and fried residue accumulated at the bottom (inside) of the residue collection section (14), preventing oxidation, discoloration, and odor transfer of the oil. Ultimately, this contributes to extending the lifespan of the frying oil and improving the quality of fried foods. Note that the "inclined bottom surface (13) located relatively close to the periphery in a plan view" refers to, for example, the parts close to the four sides, three sides, or two sides of a rectangular oil tank (10). 【0011】 In the fryer (1) of the present invention, the inverter (85) that supplies power to the IH coil (20) is located below the bottom (14c) of the oil tank (10). said lower part It is preferable that the inverter (85) and cooling mechanism (9) are arranged separated by an air passage (92), and that a fan (99) for cooling the inverter is also provided. In this case, the inverter (85) and cooling mechanism (9) are located below the oil tank (10), making the dimensions of the fryer (1) more compact. Another fryer (101) of the present invention comprises: a main frame (102); an oil tank (110) for storing frying oil, supported on the upper part of the main frame; an IH coil (120) for heating the oil tank, disposed below a sloping bottom surface (113) that is located relatively peripherally in a plan view of the bottom of the oil tank and slopes downward toward the center below the oil tank; a cooling mechanism for blowing air onto the IH coil; an automatic frying basket lift mechanism (200) and an exhaust pipe (104); the cooling mechanism comprises: an air intake port for taking in air from around the bottom of the main frame (102); an air passage (193) formed below the IH coil (120); and a fan (191) for blowing air from the air intake port (190) to the air passage (193). The oil tank bottom (113) is equipped with an exhaust opening (147) that exhausts air from the coil-under air passage (193) in the center of the opening width on the rear side to the exhaust pipe (104), The exhaust opening (147) is provided below the aforementioned automatic lifting mechanism for the lifting basket. [Effects of the Invention] 【0012】 In a fryer with a wide opening, the IH coil (20) in the center of the width at the back, which tends to be insufficiently cooled, can also be sufficiently cooled. This allows for the provision of an IH fryer with a wide opening that can be used in medium to large kitchens while maintaining the features of the fryer described in Patent 5436463. [Brief explanation of the drawing] 【0013】 [Figure 1] It is a schematic side cross-sectional view showing the overall configuration of the fryer 1 according to an embodiment of the present invention. [Figure 2] It is a front cross-sectional view of the fryer 1 in FIG. 1. [Figure 3] It is a bottom view for explaining the bottom surface of the oil tank 10 of the fryer 1 in FIG. 1, the IH coil 20, and the flow of coil cooling air. [Figure 4] It is a plan view showing the configuration of the bottom surface of the cooling air flow path in the fryer 1 in FIG. 1. [Figure 5] It is a schematic side cross-sectional view showing the overall configuration of the fryer 101 (with a cage autolift) according to another embodiment. [Figure 6] It is a rear cross-sectional view of the fryer 101 in FIG. 5. 【Explanation of Reference Numerals】 【0014】 1; Fryer, 2; Main body frame 2v; Lower part, 2x; Bottom surface 4; Exhaust pipe, 4b; Inside the pipe, 4x; Plate 10; Oil tank, 10a; Upper half, 10b; Middle lower part, 10c; Lower part 11; Side wall, 11F; Front side plate, 11B; Rear side plate, 11R·11L; Left and right side plates 13; Inclined bottom surface (bottom of the oil tank), 14; Scrap storage part, 14b; Bottom wall, 14c; Bottom, 14d; Side wall (side surface), 19; Waste oil port, 19b; Opening and closing valve 20; IH coil, 21; IH coil support plate, 22; Coil base <{ 40; Air passage bottom plate, 41; Front flat plate, 41b; Circular hole, 42·42R·42L; Cooling air guide plate, 43R·43L; Rectifying plate, 44; Opening, 45R·45L; Fan opening, 46·46R·46L; Rectifying plate, 47; Exhaust port, 48; Air flow path (Inner airflow channel) 85; Inverter, 86; Inverter box, 89; Substrate box 9; Cooling mechanism, 90; Air intake port, 91; Fan, 92; Air passage (lower air passage), 93; Air passage (air passage below the coil) 97; filter, 99; fan 101; Fryer, 102; Fryer main frame, 104; Exhaust pipe, 104x; Inner plate 110; Oil tank, 110a; Upper part 120; IH coil 146; rectifier plate, 147; exhaust opening, 148; side air passage opening 191; fan, 193; air passage (Air passage below the coil) ,199;fan 200; Cage auto-lift mechanism, 201; Lift motor, 203; Rod up and down mechanism 204; Guide section, 205; Lifting rod, 206; Tie bar, 207; Lifting bar 211; frying basket, 213; basket body, 215; handle, 216; hook [Modes for carrying out the invention] 【0015】 Embodiments of the present invention will be described below with reference to the attached diagrams. In each diagram, the directions indicated by the arrows, "up" and "down," are directions aligned with Earth's gravity. "Front" is the side from which the cook stands and puts or scoops up ingredients into the oil tank 10, as described above. "Back" is the far direction opposite to the cook as seen from their perspective. "Left" and "right" are the left and right directions as seen from the cook's perspective facing the fryer 1. 【0016】 First, the overall structure of the fryer according to an embodiment of the present invention will be described with reference to Figure 1. The fryer 1 includes an oil tank 10 for storing oil for frying food, and an electromagnetic induction coil 20 (see Figure 3 for planar arrangement) for heating the oil tank 10. These are housed in the main frame 2. 【0017】 The main frame 2 is a rectangular box-shaped structure that is long in the left-right direction (width direction). An example of its dimensions is a width of 650 mm and a depth of 600 mm. The main frame 2 rests on legs (not shown), and the height of the top surface of the oil tank 10 is 800 mm in one example. An operation panel (not shown) is provided on the front of the main frame 2. The cooling mechanism 9 cools the IH coil 20 and inverter 85 (inverter box 86) by blowing air onto them. Further details will be described later, referring to Figures 3 and 4. 【0018】 The oil tank 10 consists of an upper half 10a, a middle lower section 10b in the vertical direction, and a lower section 10c (sludge storage section 14). The upper half 10a of the oil tank extends over most of the upper surface of the main frame 2. On the front side of the side wall 11 of the upper half 10a of the oil tank, a sloping front side plate 11F forms the front wall. On the rear side of the upper half 10a of the oil tank, an upright rear side plate 11B forms the rear wall. On the left and right sides of the upper half 10a of the oil tank, as shown in Figure 2, upright left and right side plates 11R and 11L form the side walls. 【0019】 The lower middle section 10b of the oil tank 10 is shaped like a truncated square pyramid, formed by an inclined bottom plate 13 that slopes downward towards the center (the inclination angle θ is 15-25° in one example). A coil base 22 around which an IH coil 20 is wound is attached to the underside of the inclined bottom plate 13 (see Figure 3). 【0020】 The lower part 10c of the oil tank 10 is a rectangular prism-shaped waste collection section 14. The waste collection section 14 is a part that collects fried food scraps and other food waste. The waste collection section 14 has a nearly vertical side wall 14d that extends downward and is formed continuously from the lower end of the inclined bottom plate 13, and a bottom wall 14b. The bottom wall 14b is slightly inclined, and at its lowest point, there is an opening for draining oil (see reference numeral 19 in Figure 3, with an on / off valve 19b). 【0021】 The upper half side walls 11 and the inclined bottom plate 13 of the oil tank 10 are made of magnetic material. As magnetic material, for example, ferritic stainless steel (such as SUS430) or a non-magnetic material coated with a magnetic material can be used. As an example of the latter, for example, an intermediate layer can be formed by welding an iron-based material (for example, MG-50 (product name), manufactured by Kobe Steel, Ltd.) onto a base coat that has been thermal sprayed with a nickel-based material (for example, NA-955 (product name), manufactured by Kansai Special Welding Rods), and then applying a ceramic coating on top of that. On the other hand, the side walls and bottom walls of the waste collection section 14 (lower part 10c) are made of a non-magnetic material. As a non-magnetic material, for example, austenitic stainless steel (SUS304, 316, etc.) can be used. 【0022】 As shown in Figure 3, the IH coil 20 is wound around the lower surface of the inclined base plate 13, encircling the waste collection section 14 multiple times. The strip-shaped member 22 shown around the coil 20 in Figure 3 is the coil base. The member 21 that crosses the coil 20 at the center of each side of the coil 20 is the coil support plate. 【0023】 The coil is made of stranded copper wire (for example), and both ends of the coil 20 are connected to the inverter 85. When current flows through the coil 20, magnetic field lines are generated, and as these magnetic field lines pass through the inclined bottom plate 13, eddy currents are generated. These eddy currents are converted into heat by electrical resistance, heating the bottom plate (induction heating). The oil above the heated inclined bottom plate 13 is heated and flows upward around the perimeter of the oil tank 10. Then it moves towards the cooler interior and sinks downward. In other words, convection occurs from the perimeter of the oil tank 10 towards the center, then downward near the center, and then outward. Such convection occurs on all four sides of the oil tank 10, heating the oil inside the tank (the heated area is called the hot zone). 【0024】 On the other hand, the sludge reservoir 14 at the bottom center of the oil tank 10 is made of a non-magnetic material, so induction heating due to the magnetic flux generated from the coil 20 does not occur. Furthermore, the aforementioned convection hardly occurs in the sludge reservoir 14 partitioned off at the bottom of the oil tank 10, forming a cool zone. In addition, there is also the cooling effect of the cooling air that hits the bottom of the sludge reservoir 14, which will be described later. Due to these effects, for example, if the oil temperature in the hot zone H is 180°, the oil temperature in the cool zone C is about 80-100°. 【0025】 Next, the general structure of the lower part of the oil tank 10 will be explained with reference to Figures 1 and 2 (details of the coil cooling mechanism will be described later with reference to Figures 3 and 4). The bottom surface 2x of the main frame 2 is a flat surface. This bottom surface 2x rests on a footrest (not shown). The left side of the bottom surface 2x is an air intake 90 with a strip-shaped filter 97. Cooling air is drawn into the lower part of the main frame 2 through the air intake 90 (by the suction force of fans 91 and 99). 【0026】 The lower part 2v of the main frame 2 contains the electrical components, including the inverter box 86 and the circuit board box 89 (Figure 2). The inverter box 86 is located on the left side at the front. The inverter box 86 is quite large and covers a considerable portion above the air intake 90. However, the bottom of the inverter box 86 is raised about 25 mm from the bottom surface 2x of the frame, so the air entering from the air intake 90 flows upwards, passing around the bottom of the box 86. 【0027】 Above the rear of the inverter box 86, the bottom of the waste collection section 14 is located, separated by a gap of about 15 mm (air passage 92). On the front side of the waste collection section 14, a front flat plate 41 is stretched in the shape of the ceiling of the lower part 2v of the main body. On the left and right sides of the front flat plate 41, as clearly shown in Figure 4, are square-shaped fan openings 45R and 45L, and fans 91R and 91L are positioned above them. The air from fan 91 rises from fan openings 45R and 45L and flows along the underside (air passage 93) of the IH coil 20 (bottom of the oil tank 10). Details will be described later with reference to Figure 4. Note that reference numerals 42R and 42L are cooling air guide plates that protrude above and in front of fan 91, and as shown in Figure 1, they are plates that bend the cooling air hitting from below towards the IH coil 20 (bottom of the oil tank 10). 【0028】 The bottom of the residue collection section 14 extends below the front flat plate 41 and the left and right rectifier plates 43R and 43L (see Figures 2 and 4). Cooling air flows over the underside and sides of the bottom of the residue collection section 14 (forming an air passage 92). In other words, the cooling air drawn in from the rear part of the air intake 90 is drawn to the IH coil cooling fans 91 on the front left and right sides of the main frame 2 and flows through the underside and sides of the bottom of the residue collection section 14. This cooling air cools the bottom 14c and sides 14d of the residue collection section 14. This further suppresses the temperature rise of the frying oil and fried residue accumulated at the bottom (inside) of the residue collection section 14, preventing oxidation, discoloration, and odor transfer of the oil. 【0029】 A fan 99 for cooling the inverter is located at the rear end of the inverter box 86. This fan 99 blows air into the inverter box 86, sending the air from the back of the box 86 towards the front. This air cools the inverter 85 (including power semiconductor elements such as IGBTs) inside the box 86. The air that has passed through the inverter box 86 passes through the IH coil 20 cooling fan 91 and the cooling passage below the IH coil 20 (see Figures 3 and 4), enters the exhaust pipe 4, and is exhausted from its top. 【0030】 Referring to Figure 4, the configuration of the bottom surface of the cooling air passage in the fryer 1 shown in Figure 1 will be explained. Figure 4 is a plan view showing the configuration of the bottom surface of the cooling air passage. This bottom surface of the air passage is located within the main frame 2, below the inclined bottom plate 13 and the front side plate 11F of the oil tank 10, with a gap between them and the plates. 【0031】 The air passage bottom plate 40 is a collective term for the front flat plate 41, rectifier plates 43R and 43L, and rectifier plates 46R and 46L described below, and is a rectangular plate with a central depression. Approximately the lower half of the sediment storage section 14 of the oil tank 10 fits into the central rectangular opening 44 (see Figure 1). The front side of the opening 44 is a front flat plate 41. Fan openings 45R and 45L through which the fan's air passes are opened on the left and right sides of the front flat plate 41. Fans 91R and 91L (see Figure 2) are positioned above these fan openings 45R and 45L. As indicated by the thick white arrows, the air from fan 91 rises from the fan openings 45R and 45L, with some flowing towards the front center and most flowing towards the back along the left and right rectifier plates 43R and 43L, which will be described next. 【0032】 Three circular holes 41b are cut into the left and right center of the front flat plate 41, arranged in a line from front to back. These circular holes 41b serve as passages for coil wiring and sensor wiring. 【0033】 The left and right sides of the opening 44 of the air passage bottom plate 40 (the left and right sides of the central part of the air passage bottom plate 40 in the front-rear direction) are rectifier plates 43R and 43L on the left and right sides. As shown in Figure 2, these rectifier plates 43R and 43L have an outward-sloping incline, similar to the IH coil 20 and the oil tank inclined bottom plate 13, and their widths are also approximately the same. Between the IH coil 20 and the rectifier plates 43 is an air passage 93 (see Figure 2) with a gap (height) of 30 mm. This gap is suitable for cooling air to flow smoothly towards the back (see thick white arrow) while removing heat along the IH coil 20. 【0034】 The rear side of the opening 44 of the air passage bottom plate 40 (the left and right sides of the rearward slope of the air passage bottom plate 40) is the rear side of the rectifier plates 46R and 46L. As shown in Figure 1, these rectifier plates 46R and 46L have an outward-sloping incline, similar to the IH coil 20 and the oil tank inclined bottom plate 13. Between the IH coil 20 and the rectifier plates 46 is an air passage 93 (see Figure 1) with a gap (height) of 25 mm. This gap is suitable for increasing the cooling air flow velocity to the rear coil, which is difficult to cool, thereby promoting heat transfer and improving the cooling effect. Behind the rectifier plates 46R and 46L is the inner plate 4x of the exhaust pipe 4. 【0035】 The airflow that flows towards the back along the left and right lateral rectifier plates 43R and 43L strikes the rear rectifier plates 46R and 46L, bends towards the center, and reaches the rear central area. 【0036】 A square exhaust port 47 is located between the rear rectifier plates 46R and 46L (in the center left and right). Air flowing from the left and right towards the center above the rear rectifier plates 46R and 46L (air passage 93) exits towards the rear through the exhaust port 47 and enters the exhaust pipe 4. In this way, the cooling air that reaches the rear is guided to the center left and right of the rear and exhausted into the exhaust pipe 4. In other words, by preventing the air from immediately escaping from the left and right sides of the rear into the exhaust pipe 4, the IH coil 20 in the center left and right of the rear is sufficiently cooled. This is one of the important points of the present invention. 【0037】 Behind the rear rectifier plates 46R and 46L on the left and right sides of the exhaust port 47, air passages 48 are formed that exit to the left and right of the exhaust port 47 and open into the exhaust pipe 4 on the left and right sides. From these air passages 48, heated air is smoothly discharged to the left and right sides of the exhaust pipe 4 (preventing air stagnation at the exhaust port 47). 【0038】 Referring to Figure 3, we will now explain the flow of cooling air around the IH coil 20 generated by the air passage bottom plate 40 and fan 91 described in Figure 4. In Figure 3, the flow of cooling air along the IH coil 20 is indicated by thick white arrows. 【0039】 The cooling air blown from the front left and right fans 91R and 91L hits the front left and right corners of the IH coil 20 (parts indicated by 20a). From there, a portion flows towards the front center, flows over the underside of the front coil 20b, and cools that coil 20b. The remaining portion of the air that hits the coil 20a around the left and right corners flows over the surface of the coils 20c on the left and right sides. 【0040】 Next, the airflow curves towards the center, flows under the 20g coil at the back, and cools it. It then reaches the 20j coil in the center at the back. The airflow exits towards the back through the exhaust port 47 in the center at the back and enters the exhaust pipe 4. In this way, the cooled air that reaches the back is guided to the left and right center of the back and exhausted into the exhaust pipe 4. In other words, by preventing it from immediately escaping into the exhaust pipe 4 from the left and right sides of the back, the IH coils 20j in the left and right center of the back are sufficiently cooled. 【0041】 To confirm the rise in coil temperature (cooling capacity of the cooling mechanism), a harsh test was conducted involving heating to 200°C and continuous energization of the coil while cooling the frying tubing in the oil tank 10 with water flowing through a water pipe. Even under these harsh conditions, it was confirmed that the temperature of the central coil 20j at the back could be kept below approximately 110°C. 【0042】 Referring to Figures 5 and 6, another embodiment equipped with an automatic lifting mechanism (autolift 200) for the frying basket 211 will be described. Figure 5 is a schematic side cross-sectional view showing the overall configuration of a fryer 101 (basket autolift) according to another embodiment. Figure 6 is a rear cross-sectional view of the fryer 101 of Figure 5. In these figures, parts and components indicated by reference numerals that are 100 added to the reference numerals in Figures 1 to 4 are basically parts and components that have the same structure and function. 【0043】 The following describes the configuration and operation of the auto-lift mechanism of the frying basket 211, which is a characteristic feature of the embodiments shown in Figures 5 and 6. The frying basket 211 shown in Figure 5 has a relatively low, rectangular box-shaped basket body 213. The basket body 213 has a mesh plate on its bottom and sides. The basket body 213 is placed in the upper part 110a of the oil tank 110 and is almost completely submerged in the frying oil. A handle 215 protrudes from the top of the basket body 213 for the cook to grasp and lift by hand. By lifting the frying basket 211, all the fried food can be lifted. Note that the frying basket 211 of the form described so far can also be used in fryers that are not auto-lift type. 【0044】 The frying basket 211 used in the auto-lift type fryer 101 has a hook 216 for the auto-lift at the back. The hook 216 is securely connected to the basket body 213 and has a hook at the top that hooks onto the lifting bar 207 of the auto-lift. 【0045】 The cage auto-lift mechanism 200 includes the lifting bar 207, its lifting drive rod 205, the rod up / down mechanism 203, and the lift motor 201 for driving the mechanism. As shown in Figure 6, the lift motor 201 and the rod up / down mechanism 203 are fixed to the inner plate 104x of the exhaust pipe 104. 【0046】 Two lifting rods 205 are provided on the left and right sides, and are guided to slide freely in the vertical direction by guide parts 204. The two lifting rods 205 on the left and right are connected laterally in the middle by tie bars 206 and in the upper part by lifting bars 207. These lifting rods 205, lifting bars 207 and tie bars 206 form a rectangular frame and are raised and lowered by a motor 201 and an up-and-down mechanism 203. Accordingly, the cage body 213, which is hooked onto the lifting bars 207, automatically moves up and down. 【0047】 The relationship between the auto-lift mechanism 200 and the cooling mechanism of the IH coil 120 in the fryer 101 of the embodiment shown in Figures 5 and 6 will be explained. As can be seen in Figure 5, the cooling air (wind) blown up from the fan 191 located on the front side of the fryer body frame 102 flows towards the back through the air passage 193 below the IH coil 120. The wind then reaches below the IH coil 120j in the central part at the back, passes under the rectifier plate 146, and exits from the air passage 193. 【0048】 Subsequently, the cooling air (wind) descends further and flows to the bottom of the exhaust pipe 104 through the exhaust opening 147 at the bottom of the exhaust pipe 104. Then, it rises up inside the exhaust pipe 104 and is exhausted from the top of the pipe. As shown in Figure 6, this exhaust opening 147 is opened in the center of the lowest part of the inner plate 104x of the exhaust pipe. Above the exhaust opening 147, the motor 201 and rod up / down mechanism 203 of the lifting basket auto-lift mechanism 200 are fixed to the inner plate 104x of the exhaust pipe 104. 【0049】 The air exiting from the exhaust opening 147 passes under the lift motor 201, through the left and right sides, and rises up the exhaust pipe 104. Side air passage openings 148 are located on the left and right sides of the front side plate 104x of the exhaust pipe, away from the auto-lift mechanism 200. These openings 148 are the outlets to the exhaust pipe 104 for the side air passage 48 shown in Figure 4. The cooling air from these side air passage openings 148 is guided to the central rear part 120j of the IH coil 20, and then flows to the left and right before being discharged into the exhaust pipe 104.

Claims

[Claim 1] Main frame (2) and Supported on the upper part of the main frame is an oil tank (10) for storing frying oil, An IH coil (20) is positioned below a sloping bottom surface (13) that is located relatively close to the periphery of the bottom of the oil tank in a plan view, and which slopes downward towards the center of the bottom of the oil tank, for heating the oil tank. A cooling mechanism (9) that blows air onto the IH coil, It is equipped with, The cooling mechanism is The main frame (2) has an air intake port (90) that takes in air from around the bottom, A coil-under air passage (93) formed below the IH coil (20), A fan (91) that directs air from the air intake (90) to the air passage (93) below the coil, An exhaust port (47) for exhausting air from the coil-under air passage (93) at the center of the opening width on the rear side of the oil tank bottom (13), A fryer (1) characterized by having the following features. [Claim 2] The oil tank (10) The aforementioned inclined bottom surface (13) and, It has a waste collection section (14) connected to the lower side of the inclined bottom surface, which is located relatively centrally in a plan view, The IH coil (20) is arranged on the lower outer surface of the inclined bottom surface (13). The fryer (1) according to claim 1, characterized in that a lower air passage (92) is provided on the lower outer side of the waste collection section (14). [Claim 3] The fryer (1) according to claim 2, characterized in that an inverter (85) that supplies power to the IH coil (81) is located below the bottom (14c) of the oil tank (10), separated by the lower air passage (92), and a fan (99) for cooling the inverter is also provided. [Claim 4] The fryer (1) according to claim 1 or 2, characterized in that, on the left and right sides of the exhaust port (47), behind the rear rectifier plates (46R and 46L), rear air passages (48) are formed that exit to the left and right of the exhaust port and open into the exhaust pipe (4). [Claim 5] The height of the rear coil-under air passage (93), which is the distance between the rectifier plate (46R・46L) and the opposing IH coil (20) at the rear of the oil tank bottom (13), The height of the left and right coil-under air passages (93), which are the distances between the rectifier plates (43R and 43L) and the opposing IH coils (20) at the left and right sides of the central part of the front-rear direction of the oil tank bottom (13), A fryer (1) according to claim 1 or 2, characterized by being narrow. [Claim 6] Main frame (102) and Supported on the upper part of the main frame is an oil tank (110) for storing frying oil, An IH coil (120) is provided for heating the oil tank, and is located beneath an inclined bottom surface (113) that slopes downward toward the center of the bottom of the oil tank, which is positioned relatively close to the periphery in a plan view of the bottom of the oil tank. A cooling mechanism that blows air onto the IH coil, A lifting basket auto-lift mechanism (200) and an exhaust pipe (104), It is equipped with, The cooling mechanism is An air intake port for taking in air from around the bottom of the main frame (102), Below the IH coil (120) is an air passage (193) below the coil, A fan (191) that directs air from the air intake (190) to the air passage (193) below the coil, The system comprises an exhaust opening (147) that exhausts air from the coil-under air passage (193) in the center of the width of the rear side of the oil tank bottom (113) to the exhaust pipe (104), A fryer (101) characterized in that the exhaust opening (147) is provided below the frying basket auto-lift mechanism. [Claim 7] Side air passage openings (148) are located to the left and right of the exhaust opening (147), at positions that are offset to the left and right from the lifting basket auto-lift mechanism (200). The fryer (101) according to claim 6, characterized in that cooling air is guided from the side air passage opening (148) to the central rear part (120j) of the IH coil via the coil lower air passage (193), and then flows to the left and right before being discharged to the exhaust pipe (104).