CN115836809A

CN115836809A - Device for making food

Info

Publication number: CN115836809A
Application number: CN202111163741.8A
Authority: CN
Inventors: 夏朝
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-18
Filing date: 2021-09-30
Publication date: 2023-03-24
Also published as: CN215867175U; CN215993707U; CN216060250U; CN216008185U; CN216060251U; CN215993706U; CN215993705U; CN216060252U

Abstract

The invention provides a device for making food, which comprises a shell and a door body, wherein a cooking chamber is formed at the lower part of the shell, a control chamber is formed at the upper part of the shell, a heating assembly is arranged in the cooking chamber, a fan assembly is arranged in the control chamber, the cooking chamber is provided with a top wall and a rear side wall, an air induction cover corresponding to the fan assembly and an outer cover positioned on the air induction cover are arranged in the control chamber, the outer cover at least comprises an outer cover plate, and a distance is reserved between the outer cover plate and the top wall, so that a heat insulation interlayer is formed between the outer cover plate and the top wall; the shell is provided with a front door frame, the front door frame is provided with a sealing rib and a through hole positioned on the outer side of the sealing rib, the through hole is communicated with the control chamber, the sealing rib protrudes out of the front door frame, so that a gap exists between the door body and the front door frame, and the through hole is positioned in the gap. The invention can effectively eliminate the phenomenon that the high temperature in the control chamber is overhigh due to the fact that the high temperature of the cooking chamber radiates to the control chamber through the top wall of the cooking chamber in the operation process, and has the advantages of simple structure and high safety.

Description

Device for making food

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a device for making food.

Background

The main principle of the baking tool is that air is rapidly heated through a heating wire at the top, then rapidly circulating heat flow is formed inside a food basket through a high-power fan, finally a crisp surface layer is formed on the surface of the food, and simultaneously water inside the food is locked, so that the taste of common fried food which is fragrant and crisp is finally achieved.

However, in the electrical appliance in the prior art, the cooking chamber and the control chamber are adjacent to each other and separated from each other through the top wall of the cooking chamber, and the high temperature of the cooking chamber can be continuously dissipated to the control chamber through the top wall of the cooking chamber in the operation process of the electrical appliance, so that the temperature in the control chamber is too high, and the normal use of components in the control chamber, such as a circuit board, a fan and the like, can be influenced after long-time use.

In addition, in the electrical appliances in the prior art, a local high temperature phenomenon exists at the door body, and the part of heat also needs to be dissipated in time so as to eliminate potential safety hazards caused by long-term high temperature.

Therefore, improvements are needed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the device for making food, which can effectively eliminate the phenomenon that the high temperature in the control chamber is too high due to the fact that the high temperature of the cooking chamber radiates heat to the control chamber through the top wall of the cooking chamber in the operation process, and has the advantages of simple structure and high safety.

In order to achieve the above objects, the present invention provides an apparatus for making food, comprising a housing and a door body, wherein a cooking chamber is formed at the lower part of the housing, a control chamber is formed at the upper part of the housing, a heating assembly is arranged in the cooking chamber, a fan assembly is arranged in the control chamber, and the cooking chamber is provided with a top wall and a rear side wall; wherein the content of the first and second substances,

an induced draft cover corresponding to the fan assembly and an outer cover positioned on the induced draft cover are arranged in the control chamber, wherein the projections of the induced draft cover and the outer cover on the top wall can cover the top wall;

the outer cover at least comprises an outer cover plate, a distance is reserved between the outer cover plate and the top wall, so that a heat insulation interlayer is formed between the outer cover plate and the top wall, the induced draft cover is provided with a first air outlet positioned on the rear side wall, and a second air outlet communicated with the heat insulation interlayer is arranged on the rear side wall;

the shell is provided with a front door frame, and the door body is rotatably connected to the front door frame through a door hinge shaft;

the front door frame is provided with a sealing rib and a through hole positioned on the outer side of the sealing rib, the through hole is communicated with the control chamber, the closed door body is in butt fit with the sealing rib, the sealing rib protrudes out of the front door frame, so that a gap is formed between the door body and the front door frame, and the through hole is positioned in the gap;

with the through hole, the gas at the gap flows from the through hole into the control chamber.

According to another embodiment of the present invention, the housing further comprises a wind deflector adjacent to the through hole, the wind deflector is connected to the housing, the gas flowing into the control chamber from the through hole flows to the wind deflector, and a major portion of the gas flows along the wind deflector to above the housing.

According to another embodiment of the present invention, the lower end of the air deflector is lower than the through hole, and the air deflector is not in contact with the top wall.

According to another specific embodiment of the present invention, a circuit board assembly is disposed on the front door frame, and the circuit board assembly is located in the control room, wherein the circuit board assembly includes a circuit board main body and a heat insulation portion, the heat insulation portion is used for insulating heat of the circuit board main body, and includes at least one heat insulation baffle plate, and the heat insulation baffle plate is located above the through hole.

According to another embodiment of the invention, the thermal barrier is plate-shaped and forms an angle with the horizontal plane, the angle being ± 30 °.

According to another embodiment of the present invention, a sealing rib is prefabricated on a front door frame and forms an outlet of a cooking chamber, wherein the sealing rib is a bent structure having a corner protrusion in a longitudinal section, and includes a first edge, a second edge and a protrusion, the first edge is prefabricated on the front door frame, the second edge is located on an inner side of the first edge and connected with a side wall of the cooking chamber, and the protrusion protrudes from a plane of the first edge and is located on an outer side of the first edge.

According to another embodiment of the present invention, a partition is disposed in the cooking chamber, a sliding groove is disposed on a top wall of the cooking chamber, and the partition is detachably disposed in the sliding groove to partition the cooking chamber into two sub-cooking chambers, each of which is provided with a heating assembly and a fan assembly.

According to another embodiment of the invention, the partition plate comprises two side plates which are spliced into a whole, the left side wall and the right side wall of the cooking chamber are provided with first supporting grooves, the side plates are provided with second supporting grooves for supporting, and the first supporting grooves and the second supporting grooves are flush.

According to another embodiment of the invention, the cooking device further comprises a mechanism for executing door opening and closing operations, the mechanism is used for driving the door body to close and keeping the door body at a maximum opening position exceeding 90 degrees, the mechanism is positioned at the bottom of the cooking chamber and comprises a connecting rod, a guide seat and a spring;

the guide seat is fixed on the shell;

the bottom of the front door frame is provided with a strip-shaped groove, the connecting rod is provided with a hinged end and a free end, the free end of the connecting rod is provided with a guide groove, and the guide seat is connected with the guide groove in a matched manner, so that the free end of the connecting rod can rotate while sliding relative to the guide seat, and the hinged end of the connecting rod penetrates out of the strip-shaped groove and is hinged with the door body;

the relative guide holder of one end of spring is fixed, and the free end at the connecting rod is connected to the other end of spring, and wherein the spring is opened to the biggest open position in-process at the door body and is stretched all the time, at the continuous open in-process of the door body, utilizes the spring, thereby the connecting rod can open the biggest open position with the door body with the cell wall counterbalance in bar groove.

According to another embodiment of the invention, the connecting rod is a bending rod which is provided with a first rod and a second rod which are connected with each other and have an included angle, and the first rod and the second rod are connected into a whole or prefabricated into a whole;

the in-process is opened in succession to the door body, utilizes the spring, and first pole or second pole can offset and compress tightly in the cell wall department of bar groove with the cell wall in bar groove.

The invention has the following beneficial effects:

according to the invention, the heat insulation interlayer is formed between the cooking chamber and the control chamber, the heat emitted by the top wall of the cooking chamber is dissipated by utilizing the heat insulation interlayer formed at intervals, and the heating degree of the surface of the outer cover plate far away from the heat insulation interlayer is reduced, so that the influence of the heat dissipation of the cooking chamber on the control chamber is further weakened; simultaneously on the door frame with the closed door body the corresponding position in edge be equipped with a plurality of through-holes, through-hole and control chamber intercommunication utilize the fan unit in the control chamber, dispel the heat of door body department to effectively eliminate the local high temperature phenomenon of door body department, avoid the door body to appear the high temperature and lead to the phenomenon emergence of scalding, have simple structure, the high advantage of security.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of the door opening in embodiment 1 of the present invention;

FIG. 3 is a schematic sectional view of example 1 of the present invention;

FIG. 4 is a schematic structural view showing a control room in embodiment 1 of the present invention;

FIG. 5 is an exploded schematic view of FIG. 4;

FIG. 6 is a schematic view of the back side of the outer cover and the induced draft cover in example 1 of the present invention;

FIG. 7 is a schematic view of the back side of a door frame in accordance with embodiment 1 of the present invention;

fig. 8 is a schematic structural view of a door frame according to embodiment 1 of the present invention;

fig. 9 is a schematic view of a seal rib at a section B in embodiment 1 of the present invention;

FIG. 10 is an enlarged schematic view at A in FIG. 3;

FIG. 11 is a schematic view showing the closing of the door body in embodiment 1 of the present invention;

fig. 12 is a schematic view showing the door body opened in embodiment 1 of the present invention;

fig. 13 is a schematic view of a mechanism for opening-closing a door body according to embodiment 1 of the present invention;

FIG. 14 is a schematic structural view of a separator in example 1 of the present invention;

FIG. 15 is an exploded schematic view of a separator according to example 1 of the present invention;

FIG. 16 is a schematic view showing the positions of the lighting assembly and the partition in embodiment 1 of the present invention;

figure 17 is an exploded schematic view of the lighting assembly of figure 16;

FIG. 18 is a schematic view of a first heater and a second heater in the heating assembly of example 1 of the present invention;

fig. 19 is a schematic view of a third heater in the heating unit according to embodiment 1 of the present invention.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

Example 1

The invention provides a device for making food, in particular to a fryer/oven, as shown in figures 1-19, wherein the device comprises a shell 100 and a door body 200, a cooking chamber 101 is formed at the lower part of the shell 100, a heating assembly 300 is arranged in the cooking chamber 101, a control chamber 102 is formed at the upper part of the shell 100, and a fan assembly 400 is arranged in the control chamber.

The cooking chamber 101 has a top wall 103, a rear side wall 104, a left side wall 105 and a right side wall 106, and the fan assembly 400 includes a motor 401, an upper fan 402 and a lower fan 403, which are coaxial with each other and driven by the motor 401, wherein the upper fan 402 is located in the control chamber 102 to form a heat dissipating air flow, and the lower fan 403 is located in the cooking chamber 101 to form a heating air flow.

The cooking chamber 101 in this embodiment is provided therein with a partition 110 to divide the cooking chamber 101 into two sub-cooking chambers.

The induced draft cover 120 and the outer cover 130 are arranged in the control room 102, the induced draft cover 120 corresponds to the upper fan 402 of the fan assembly 400, the outer cover 130 is positioned on the induced draft cover 120, wherein the projections of the induced draft cover 120 and the outer cover 130 on the top wall 103 can cover the top wall 103, and correspondingly, the induced draft cover 120 and the outer cover 130 are made of heat insulating materials, and are preferably prefabricated into a whole to form a good heat insulating effect.

As shown in fig. 3 to 6, the outer cover 130 includes at least one outer cover plate 131, and the outer cover plate 131 is spaced apart from the top wall 103, so that a heat insulating interlayer 140 is formed between the outer cover plate 131 and the top wall 103, and by using the heat insulating interlayer 140 to dissipate heat dissipated from the top wall 103 of the cooking chamber 101, the surface of the outer cover plate 131 away from the heat insulating interlayer 140 is heated to a reduced degree.

Wherein the outer cover plate 131 is preferably supported on the top wall 103 of the cooking chamber 101, a plurality of stepped support pillars 107 are arranged on the top wall 103 of the cooking chamber 101, connecting seats 132 corresponding to the support pillars 107 one by one are arranged on the outer cover plate 131, the outer cover plate 131 is arranged on the support pillars 107 through the connecting seats 132, a connecting hole 133 is arranged on the specific connecting seat 132, as shown in fig. 6, the support pillars 107 can penetrate out of the connecting hole 133, lock seats 134 are arranged on the support pillars 107, and the lock seats 134 are connected on the support pillars 107 through bolts and press the outer cover plate 131 tightly.

Specifically, the distance that the outer cover plate 131 exceeds the top wall 103 of the cooking chamber 101 is less than the distance that the air inducing cover 120 exceeds the top wall 103 of the cooking chamber 101, and preferably, the distance between the outer cover plate 131 and the top wall 103 of the cooking chamber 101 is 4cm or less, for example, 3cm.

As shown in fig. 5, the induced draft cover 120 has a first air outlet 108 located on the rear sidewall 104, a second air outlet 109 communicated with the heat insulating interlayer 140 is disposed on the rear sidewall 104, and the second air outlet 109 is disposed close to the first air outlet 108.

The case 100 has a front door frame 150, and two door bodies 200 are rotatably coupled to the front door frame 150 by a door hinge shaft to open or close the two sub-cooking chambers, as shown in fig. 1-2;

the front door frame 150 is provided with a sealing rib 160 and a through hole 170 positioned on the outer side of the sealing rib 160, the through hole 170 is communicated with the control chamber 102, the closed door body 200 is in butt fit with the sealing rib 160, the sealing rib 160 protrudes out of the front door frame 150, so that a gap exists between the door body 200 and the front door frame 150, and the through hole 170 is positioned in the gap;

during the continuous operation of the upper fan 402, the hot air in the control chamber 102 is exhausted, the air (cold air) at the gap flows into the control chamber 102 from the through hole 170 through the through hole 170, a main portion of the air enters the induced draft cover 120 through the flow channel formed in the control chamber 102, and is finally exhausted from the first air outlet 108, a small portion of the air can pass through the thermal insulation interlayer 140 and naturally flows out from the second air outlet 109, and the air is continuously exhausted under the action of the upper fan 402 based on the existence of the first air outlet 108, so that the natural flow of the air flow in the thermal insulation interlayer 140 can be accelerated, and the heat is rapidly exhausted.

The through holes 170 at the gap can supplement cold air, and the cold air continuously flows at the gap and takes away and discharges heat at the edge of the door body 200, so that the high temperature phenomenon at the edge of the door body 200 is eliminated.

Specifically, the through-hole 170 is disposed at an upper side of the outlet of the cooking chamber 101.

The housing 130 further includes a wind deflector 135 adjacent to the through hole 170, the wind deflector 135 is connected to the housing plate 131, the gas flowing into the control chamber 102 from the through hole 170 flows to the wind deflector 135, and a major portion of the gas flows above the housing plate 131 along the wind deflector 135.

Wherein, the lower end (front lower end) of the air deflector 135 is lower than the through hole 170, and the air deflector 135 is not in contact with the top wall 103, so that an inlet area of the thermal insulation interlayer 140 is formed between the air deflector 135 and the top wall 103 of the cooking chamber 101, thereby forming a directional natural flow in the thermal insulation interlayer 140.

In this embodiment, the front door frame 150 is provided with a circuit board assembly 500, and the circuit board assembly 500 is located in the control room 102.

The circuit board assembly 500 includes a circuit board main body 510 and a heat insulation part 520, as shown in fig. 7 and 10, the heat insulation part 520 is used for insulating heat of the circuit board main body 510 and includes at least one heat insulation baffle 521, and the heat insulation baffle 521 is located above the through hole 170.

Specifically, the heat insulation baffle 521 is plate-shaped, and an included angle is formed between the heat insulation baffle 521 and the horizontal plane, the included angle is ± 30 °, and the included angle between the heat insulation baffle 521 and the horizontal plane in the embodiment is-10 °, as shown in fig. 10.

Preferably, the thermal barrier 521 protrudes rearward by more than half the thickness of the circuit board body 510, so as to provide a good thermal insulation and wind shielding effect.

As shown in fig. 10, the air enters the control chamber 102 through the through holes 170 of the front door frame 150, a major portion of the air enters the control chamber 102 along the space between the air deflector 135 and the thermal baffle 521 and finally enters the induced draft cover 120 to be discharged from the first air outlet 108, and a small portion of the air enters the thermal insulation interlayer 140 to flow and finally is discharged from the second air outlet 109.

In this embodiment, the sealing rib 160 is made of the same material as the front door frame 150.

The sealing rib 160 is a bent structure with a corner protrusion in a longitudinal section, as shown in fig. 5 and 9, the sealing rib 160 includes a first edge 161, a second edge 162 and a protrusion 163 which are integrally formed, the first edge 161 is prefabricated with the front door frame 150, the second edge 162 is located inside the first edge 161 and connected with the side walls (the top wall 103, the bottom wall, the left side wall 105 and the right side wall 106) of the cooking chamber 101, the protrusion 163 protrudes out of the plane of the first edge 161 and located outside the first edge 161, and the closed door body 200 covers the protrusion 163 and forms a sealing fit with the protrusion 163.

Specifically, the second edge 162 and the first edge 161 are perpendicular to each other, the sealing rib 160 has an L-shaped structure with a raised corner in longitudinal section, and rounded transitions are provided at the corresponding protrusion 163 and the first edge 161, and at the second edge 162.

The protruding portion 163 is C-shaped, and has an arc surface for sealing and matching with the door body 200, where the arc surface may be a pure arc surface, or a similar arc surface having a plane with a smaller width as an abutting surface.

Preferably, the thickness of the protrusion 163 protruding from the plane of the first edge 161 is 5mm or less, for example, the thickness of the protrusion 163 protruding from the plane of the first edge 161 is 4mm.

It is further preferable that the width of the second edge 162 is 30mm or less than 30mm to provide a space for connection, a connection-use counterbore 164 is provided on the second edge 162 to hide a screw, the second edge 162 is fixedly connected with the side wall of the cooking chamber 101, and the second edge 162 further provides support for the protrusion 163 to maintain a stable support effect of the protrusion 163.

The two door bodies 200 in this embodiment are respectively provided with a mechanism 600, the mechanism 600 is used for performing door opening and closing operations, and is used for driving the door bodies 200 to close and keeping the door bodies 200 at the maximum opening position exceeding 90 degrees, the mechanism 600 is positioned at the bottom of the cooking chamber 101, as shown in fig. 11-13, and the mechanism 600 comprises a connecting rod 610, a guide seat 620 and a spring 630;

the guide seat 620 is fixed on the housing 100;

a strip-shaped groove 151 for the connecting rod 610 to pass through is formed in the bottom of the front door frame 150, the connecting rod 610 is provided with a hinged end and a free end, a guide groove 640 is formed in the free end of the connecting rod 610, and the guide seat 620 is connected with the guide groove 640 in a matched manner, so that the free end of the connecting rod 610 can rotate while sliding relative to the guide seat 620, and the hinged end of the connecting rod 610 penetrates out of the strip-shaped groove 151 and is hinged with the door body 200;

one end of the spring 630 is fixed with respect to the guide 620, and the other end of the spring 630 is connected to the free end of the link 610,

one end of the spring 630 is fixed relative to the guide seat 620, and the other end of the spring 630 is connected to the free end of the connecting rod 610, wherein the spring 630 is always stretched when the door body 200 is opened to the maximum opening position, and in the continuous opening process of the door body 200, the connecting rod 610 can abut against the groove wall of the strip-shaped groove 151 to open the door body 200 to the maximum opening position by using the spring 630, and is stabilized at the maximum opening position.

In order to reduce the operating space of the connecting rod 610, so that the connecting rod can rotate in a smaller range, the connecting rod 610 in this embodiment adopts a bending rod having a first rod 611 and a second rod 612 which are connected with each other and form an included angle, and the first rod 611 and the second rod 612 are connected together or prefabricated together.

Specifically, the angle between the first rod 611 and the second rod 612 is an obtuse angle, for example, the angle between the first rod 611 and the second rod 612 shown in fig. 13 is 135 °.

Further, the second rod 612 penetrates through the strip-shaped groove 151, and in the opening process of the door body 200, the first rod 611 or the second rod 612 can abut against the groove wall of the strip-shaped groove 151 and press the groove wall of the strip-shaped groove 151 by using the spring 630, as shown in fig. 12, when the door body is at the maximum opening position, the joint of the first rod 611 and the second rod 612 abuts against the groove wall of the strip-shaped groove 151.

More specifically, as shown in fig. 13, the guide seat 620 includes a support seat 621, a roller 622, a pressing piece 623 and a connecting shaft 624, the roller 622 is disposed on the support seat 621 in a rolling manner (specifically, sleeved) and is in sliding fit with the guide groove 640, the pressing piece 623 is used for preventing the roller 622 from jumping up and down, and the pressing piece 623 is disposed on the support seat 621 through the connecting shaft 624 and is located above the roller 622.

The preferred mounting structure of the partition 110 in this embodiment is:

a sliding groove 180 is formed on the top wall 103 of the cooking chamber 101, and a partition 110 is detachably disposed in the sliding groove 180 to partition the cooking chamber 101 into two sub-cooking chambers, each of which is provided with a heating assembly 300 and a fan assembly 400.

Specifically, the partition 110 includes two side plates 111, the two side plates 111 are integrally joined, a first supporting groove 113 is formed in the left side wall 105 and the right side wall 106 of the cooking chamber 101, a second supporting groove 112 for supporting is formed in the side plate 111, and the first supporting groove 113 and the second supporting groove 112 are flush with each other for placing a grill, a fry basket, and the like.

Correspondingly, an oil receiving tray 190 is arranged in the cooking chamber, the bottom of the partition 110 is supported on the oil receiving tray 190, a clamping groove 191 corresponding to the sliding groove 180 is preferably arranged on the oil receiving tray 190, and the partition 110 is completely arranged in the clamping groove 191 after being assembled in place.

Further, the oil receiving pan 190 is provided with a flow passage 192 for communicating with the catching groove 191, and after the oil on the partition 110 is collected in the catching groove 191, the oil can flow into the oil receiving groove 193 in the oil receiving pan 190 through the flow passage 192 to be recovered.

The heating assembly 300 in this embodiment includes a first heater 301, a second heater 302, and a third heater 303, as shown in fig. 3, 18-19.

The sub-cooking chamber has a blowing duct 304 at the top thereof, a first heater 301 is located in the blowing duct 304 and is adjacent to a lower fan 403 in the fan assembly 400, a second heater 302 is located at the top of the sub-cooking chamber, and a third heater 303 is located at the bottom of the sub-cooking chamber, and the first heater 301 and the second heater 302 are controlled to be turned on in a combined manner to perform heating in a first mode, and the second heater 302 and the third heater 303 are controlled to be turned on in a combined manner to perform heating in a second mode by using the circuit board main body 510 as a controller.

Specifically, as shown in fig. 18, the first heater 301 is a circular heating pipe, and the head end and the tail end of the first heater 301 are installed in the blowing slot 304 through a first bracket 305.

The first heater 301 is located at the outer periphery of the lower fan 403 in the fan assembly 400, in other examples, the first heater 301 may also be located at a side of the lower fan 403 close to the second heater 302 in the fan assembly 400, and in this case, the first heater 301 may also be selected as a coil heater (or a mosquito coil heater).

Correspondingly, a first auxiliary support 306 for supporting the first heater 301 is arranged in the blowing slot 304, and the first heater 301 is supported and fixed by the first auxiliary support 306 to realize bilateral support and have better stability, as shown in fig. 18, the first auxiliary support 306 is located at the opposite side of the head end and the terminal end of the first heater 301, that is, the first auxiliary support 306 is used for supporting the middle part of the first heater 301.

As shown in fig. 18, the second heater 302 is a U-shaped heating tube, the head end and the tail end of the second heater 302 are mounted on the sub left side wall 105 or the right side wall 106 through a second bracket 307, and preferably, a second auxiliary bracket 308 for supporting the second heater 302 is provided on the top wall 103, wherein the second auxiliary bracket is also provided on the opposite side of the second bracket 307, that is, the second auxiliary bracket 308 is used for supporting the middle portion of the second heater 302, so that the stability is better.

As shown in fig. 19, the third heater 303 is a U-shaped heating pipe, and the head end and the tail end of the third heater 303 are mounted on the left side wall 105 or the right side wall 106 through a third bracket 309.

Further, the third support 309 is an inverted T-shaped support, the third support 309 has three riveted connection points, two of the riveted connection points are located at two sides of the head end or the terminal end of the third heater 303 and are flush with each other, the other riveted connection point is located above the third heater 303, the third support 309 has strong stability, and after long-time use, the stability can be still maintained, so that the horizontal installation position of the third support is prevented from being maintained under the condition that the middle part of the third heater 303 is not supported, and the third support 309 is suitable for an installation space which cannot provide a supporting condition.

In the embodiment, the working states of the first heater 301, the second heater 302 and the third heater 303 are switched and controlled, so that the switching among different heating modes is realized, the different heating modes are respectively adjusted and used according to the requirements of different food preparation, and the heating device has the advantages of simple structure and strong operability.

Specifically, for example, when two sub-cooking chambers are used as one cooking space, any one of the first heater 301, the second heater 302, and the third heater 303 may be independently turned on as needed to perform auxiliary heating.

In order to realize the common illumination of the two sub-cooking chambers, the illumination assembly 700 is provided in the present embodiment, as shown in fig. 16 to 17, and the illumination assembly 700 is disposed above the partition 110.

The lighting assembly 700 includes a mounting base 710, a lamp body 720 for illumination, and a light guide 730 that is transparent and resistant to high temperatures.

The mounting support 710 is arranged in the control room 102, and is specifically positioned on one side of the top wall 103 far away from the front door frame 150;

the lamp body 720 is disposed on the mounting support 710, the mounting support 710 is a closed box structure having only one outlet 711, and the light guide cover 730 is disposed at the outlet 711, wherein the light guide cover 730 is made of heat-resistant glass, and the light guide cover 730 can transmit light and insulate heat, thereby preventing the high temperature in the cooking chamber 101 from causing unnecessary influence on the lamp body 720.

The top wall 103 is provided with a light hole matched with the light guide cap 730, the light guide cap 730 is arranged at the light hole, and the partition plate 110 corresponds to the middle part of the light guide cap 730, so that the illumination light emitted by the lamp body 720 passes through the light guide cap 730 and illuminates different sub-cooking chambers at the same time.

The light guide 730 is preferably plate-shaped, is attached to the surface of the top wall away from the main cooking chamber 101 and covers the light transmission hole, and the light guide 730 is symmetrical with respect to the plane of the partition 110.

In the embodiment, the mounting base 710 is provided with fixing legs 712, as shown in fig. 17, the assembled mounting base 710 presses the light guide cover 730 against the top wall 103 of the main cooking chamber 101 through the fixing legs 712 to fix the light guide cover 730, wherein the mounting base 710 is preferably square, and at least one fixing leg 712 is provided on each of four side walls of the mounting base 710 to position the light guide cover 730.

The present embodiment may be used in a partition mode, in which the partition 110 divides light emitted from the lamp body 720 into different sub cooking chambers for illumination, or in a partition-free mode, in which the light emitted from the lamp body 720 directly illuminates the main cooking chamber 101.

In this embodiment, a first detector 201 for detecting whether the two door bodies 200 are closed and a second detector 114 for detecting whether the partition 110 is installed in place are further respectively provided, the circuit board main body 510 is connected with the first detector 201 and the second detector 114 to respectively acquire signals, real-time sensing is realized, and then control is performed through a display interface on the circuit board assembly 500, so that display and control of the two sub-cooking chambers are realized when the partition 110 is provided, or display and control of the cooking chamber 101 are performed when the partition 110 is not provided.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Claims

1. An apparatus for preparing food, comprising a housing and a door, wherein a cooking chamber is formed at a lower portion of the housing, a control chamber is formed at an upper portion of the housing, a heating assembly is disposed in the cooking chamber, a fan assembly is disposed in the control chamber, and the cooking chamber has a top wall and a rear side wall, characterized in that:

an induced draft cover corresponding to the fan assembly and an outer cover positioned on the induced draft cover are arranged in the control chamber, wherein the top wall can be covered by projections of the induced draft cover and the outer cover on the top wall;

the front door frame is provided with a sealing rib and a through hole positioned on the outer side of the sealing rib, the through hole is communicated with the control chamber, the closed door body is in butt fit with the sealing rib, and the sealing rib protrudes out of the front door frame, so that a gap is formed between the door body and the front door frame, and the through hole is positioned in the gap;

2. The apparatus for preparing food according to claim 1 wherein said housing further comprises a deflector adjacent said opening, said deflector being connected to said housing, wherein gas flowing into said control chamber through said opening flows toward said deflector, and a major portion of said gas flows along said deflector above said housing.

3. The apparatus for preparing food of claim 2, wherein the lower end of the air deflector is lower than the through hole without contact between the air deflector and the top wall.

4. The apparatus for preparing food according to claim 2, wherein a circuit board assembly is provided on the front door frame, the circuit board assembly being located in the control chamber, wherein the circuit board assembly includes a circuit board main body and an insulating portion for insulating the circuit board main body, the insulating portion including at least one insulating barrier located above the through hole.

5. The apparatus for preparing food according to claim 4, wherein said thermal shield is plate-shaped and forms an angle with a horizontal plane, the angle being ± 30 °.

6. The apparatus for preparing food according to claim 1, wherein the sealing rib is preformed on the front door frame and forms an outlet of the cooking chamber, wherein the sealing rib is a bent structure having a corner protrusion in a longitudinal section, and includes a first edge, a second edge and a protrusion, the first edge being formed on the front door frame, the second edge being located inside the first edge and connected to the side wall of the cooking chamber, and the protrusion being protruded from a plane in which the first edge is located and located outside the first edge.

7. The apparatus for preparing food according to claim 1, wherein a partition is provided in the cooking chamber, a chute is provided in a top wall of the cooking chamber, the partition is detachably provided in the chute to partition the cooking chamber into two sub-cooking chambers, each sub-cooking chamber is provided with a heating assembly and a fan assembly.

8. The apparatus for preparing food according to claim 7, wherein the partition comprises two side plates, the two side plates are integrally connected, first supporting grooves are formed on the left and right side walls of the cooking chamber, second supporting grooves for supporting are formed on the side plates, and the first supporting grooves and the second supporting grooves are flush with each other.

9. The apparatus for preparing food according to claim 1, further comprising a mechanism for performing a door opening and closing operation, said mechanism for driving said door body to close and for maintaining said door body in a maximum opening position exceeding 90 °, said mechanism being located at the bottom of said cooking chamber and comprising a link, a guide, and a spring;

the guide seat is fixed on the shell;

the bottom of the front door frame is provided with a strip-shaped groove, the connecting rod is provided with a hinged end and a free end, the free end of the connecting rod is provided with a guide groove, the guide seat is connected with the guide groove in a matched manner, so that the free end of the connecting rod can rotate while sliding relative to the guide seat, and the hinged end of the connecting rod penetrates out of the strip-shaped groove and is hinged with the door body;

one end of the spring is fixed relative to the guide seat, the other end of the spring is connected to the free end of the connecting rod, the spring is stretched all the time when the door body is opened to the maximum opening position, and in the continuous opening process of the door body, the connecting rod can abut against the groove wall of the strip-shaped groove to open the door body to the maximum opening position by utilizing the spring.

10. The apparatus for preparing food according to claim 9, wherein the connecting rod is a bent rod having a first rod and a second rod connected to each other with an included angle therebetween, the first rod and the second rod being connected to each other integrally or prefabricated integrally;

in the continuous opening process of the door body, the first rod or the second rod can be abutted against the groove wall of the strip-shaped groove by the aid of the spring.