CN112790619A

CN112790619A - Inner container air guide system of cooking equipment

Info

Publication number: CN112790619A
Application number: CN201911112934.3A
Authority: CN
Inventors: 吴亚男; 付远华
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2021-05-14
Anticipated expiration: 2039-11-14
Also published as: CN112790619B

Abstract

The invention relates to an inner container air guide system of cooking equipment, which comprises an inner container, a hot air baffle, a hot air blower and an air guide sleeve, wherein the hot air baffle is arranged at the rear part of a cooking cavity and forms a hot air chamber with the rear wall of the cooking cavity, an impeller of the hot air blower is rotatably arranged in the hot air chamber, an air outlet is arranged on the hot air baffle, the front side of the air outlet is provided with an air guide sleeve, the front end of the air guide sleeve can move relative to the hot air baffle plate under the drive of the impeller, therefore, the air outlet direction of the first through hole arranged on the front wall plate of the air guide sleeve can change along with the movement of the air guide sleeve, so that the movable design of the air guide sleeve, the hot air generated by the hot air fan in the hot air baffle can be uniformly guided to the cooking cavity, so that the hot air entering the cooking cavity is not blown out by the parallel hot air baffle any more, therefore, all parts in the cooking cavity can be filled with hot air, and the cooking food can be quickly and uniformly heated.

Description

Inner container air guide system of cooking equipment

Technical Field

The invention relates to a cooking utensil, in particular to an inner container air guide system of cooking equipment.

Background

Along with kitchen cooking equipment's gradual development, the kitchen space is got effectual utilization gradually, and cooking equipment is intelligent gradually, and the function is more centralized, and the different culinary art modes that need many equipment to realize in the past can be realized on an equipment now, has satisfied the diversified demand of modern kitchen to the culinary art.

For an integrated machine with a barbecue function and a microwave function, how to effectively consider two cooking modes is an unsolved problem, and the integrated machine product with the microwave heating function and the baking function has the advantages that in the process of heating food, especially when the baking function is used independently, the heat of a heating element needs to be effectively transferred to a cooking chamber furnace chamber, meanwhile, the heat generated by the heating element is prevented from being dissipated to influence other electronic components, and the leakage of microwaves also needs to be avoided when the microwave function is used.

For example, chinese patent application No. cn201611204418.x discloses an all-in-one oven and microwave oven, which has a heating device at the back of a cooking cavity, and an air inlet and an air outlet are provided on a hot air baffle plate, wherein the air inlet and the air outlet are formed by a plurality of through holes with small apertures to realize heat transfer.

Above-mentioned form of back trompil is still more single, in order to make wind more even, often just reach better homogeneity through the quantity and the diameter that increase the hole, but in order to avoid the microwave leakage, the hole number and the aperture of back hot air baffle all have certain setting upper limits, this homogeneity that just leads to hot-blast is difficult to keep unanimous, and no matter how the hole number of aperture changes, hot-blast is only parallel all the time and blows to among the culinary art cavity, because amount of wind variation in size and temperature logical between the different layers, can lead to temperature difference between the different layers great, can influence the culinary art effect equally.

Disclosure of Invention

The invention aims to solve the technical problem of providing an inner container air guide system of cooking equipment, which has uniform air outlet and good heating effect, aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: an inner container air guide system of cooking equipment comprises

The inner container is provided with a cooking inner cavity with an opening at the front side;

the hot air baffle is arranged at the rear part of the cooking cavity, a hot air chamber is formed between the hot air baffle and the rear wall of the cooking cavity, and an air outlet is formed in the hot air baffle;

the hot air blower is arranged on the rear wall plate of the inner container and used for providing power for air flow exchange between the cooking cavity and the hot air chamber, and the output end of the hot air blower is provided with an impeller which is rotatably arranged in the hot air chamber;

also comprises

The front end of the air guide sleeve can move relative to the hot air baffle, the air outlet direction of the first through hole changes along with the movement of the corresponding air guide sleeve, and the power input end of the air guide sleeve is connected with the impeller.

In order to further ensure the uniform diversion of hot air, at least two groups of air guide sleeves are provided, the rear side of the front wall plate of each air guide sleeve is also connected with a transmission shaft, the transmission shafts are linked through transmission parts, the power output end of the impeller is in driving connection with the transmission shaft in one of the air guide sleeves, thus the uniformity of the diversion of hot air is further increased by the multiple groups of air guide sleeves, the linkage of the multiple air guide sleeves can be realized through the connection of one of the air guide sleeves and the impeller, a power source does not need to be additionally increased, and the efficiency of the diversion of hot air is also improved.

Specifically, the air guide sleeve comprises a first air guide sleeve in driving connection with the impeller and second air guide sleeves arranged at intervals along the circumferential direction of the first air guide sleeve, the transmission parts are transmission belts sequentially wound on the transmission shafts, linkage is realized through the transmission belts, the structure is simple, one first air guide sleeve can drive two or even a plurality of second air guide sleeves to synchronously move through the transmission belts, and the transmission efficiency is high.

In order to ensure that a driving part or a hot air blower cannot be damaged when the speed difference is formed between the air guide sleeve and the impeller, a differential assembly is arranged between the power output end of the impeller and the first air guide sleeve, the differential assembly comprises a driving bevel gear coaxially connected with the impeller, a driven bevel gear connected with a transmission shaft of the first air guide sleeve and a planetary gear, and the planetary gear is meshed between the driving bevel gear and the driven bevel gear.

Furthermore, the air guide sleeve comprises an air guide plate and a flexible telescopic net, the air guide plate is arranged on the front side of the air outlet and forms the front wall plate, and the flexible telescopic net is connected between the air guide plate and the air outlet and forms an air guide channel for guiding hot air blown out of the air outlet to the air guide plate.

In order to facilitate air suction and heating, the hot air baffle comprises a baffle body and a side plate extending backwards from the circumferential direction of the baffle body, the side plate and the inner container rear wall plate jointly enclose to form the hot air chamber, and an air inlet is formed in the side plate.

Preferably, the baffle body is further provided with a plurality of second through holes for guiding the hot air, the second through holes are arranged at intervals along the circumferential direction of the air outlet, the second through holes are formed by combining the existing parallel air outlet mode with the movable air outlet of the air guide sleeve, and the uniform output of the hot air is ensured while the air output is ensured.

In order to ensure that the air in the hot air chamber can be heated and blown out, the air heater further comprises a motor and a heating pipe, the heating pipe is arranged in the hot air chamber and is arranged in the circumferential direction of the impeller in a surrounding mode, the motor is arranged at the rear portion of the inner container, and the impeller is connected to an output shaft of the motor.

In order to realize the movement of the air guide sleeve, the transmission shaft comprises an installation shaft and a connection shaft, the connection shaft is fixedly connected with the air guide plate, the installation shaft and the output shaft of the motor extend in the same direction, in addition, the central axis of the installation shaft and the central axis of the connection shaft are arranged in a deflection mode, and the movement of the air guide sleeve is the swinging motion due to the deflection arrangement of the installation shaft and the connection shaft.

Furthermore, in order to realize the swing of the air guide sleeve, the front end of the mounting shaft is provided with an inclined surface, and the connecting shaft is mounted on the inclined surface.

Compared with the prior art, the invention has the advantages that: the front side of the air outlet is provided with the air guide sleeve, the front end of the air guide sleeve can move relative to the hot air baffle under the action of the impeller, so that the air outlet direction of the first through hole arranged on the front wall plate of the air guide sleeve can change along with the movement of the air guide sleeve, the movable design of the air guide sleeve can uniformly guide the hot air generated by the hot air fan in the hot air baffle to the cooking cavity, the hot air entering the cooking cavity is not parallel to the hot air baffle to blow out, all parts in the cooking cavity can be guaranteed to be filled with the hot air, and the quick and uniform heating of cooking food materials is realized.

Drawings

FIG. 1 is a schematic structural view of a hot air baffle plate arranged on the rear wall of an inner container in the embodiment of the invention;

FIG. 2 is a schematic view of an assembly of a hot air baffle and an air guide sleeve according to an embodiment of the present invention;

FIG. 3 is a schematic transmission diagram of the rear air guiding sleeve without the hot air baffle in the embodiment of the invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

FIG. 5 is a schematic view of the differential assembly without the hot air baffle;

FIG. 6 is an overall structural sectional view of a hot air baffle plate assembled on the rear wall of the inner container in the embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 6, which are a preferred embodiment of the present invention, in this embodiment, the liner air guiding system of the cooking apparatus includes a liner 1, a hot air baffle 2, an air heater 3 and an air guiding sleeve 4, wherein the liner 1 has a cooking cavity 1a with an open front side, the hot air baffle 2 is disposed at the rear part of the cooking cavity 1a and forms a hot air chamber 2a with the rear wall of the cooking cavity 1a, the hot air baffle 2 is provided with an air outlet 2b, the hot air baffle 2 includes a baffle body 21 and a side plate 22 extending backwards from the circumferential direction of the baffle body 21, the side plate 22 and the rear wall of the liner 1 together enclose the hot air chamber 2a, and the side plate 22 is provided with an air inlet; in order to ensure the generation of hot air, the air heater 3 is disposed on the rear wall of the inner container 1 and is used for providing power for the exchange of air flow between the cooking cavity 1a and the hot air chamber 2a, specifically, the air heater 3 further includes a motor 31 and a heating pipe 32, the heating pipe 32 is disposed in the hot air chamber 2a and circumferentially arranged on an impeller 33, the motor 31 is disposed at the rear of the inner container 1, and the impeller 33 is connected to an output shaft of the motor 31 and can rotate in the hot air chamber 2 a.

In this embodiment, in order to uniformly convey hot air into the liner, the air guide sleeve 4 is disposed on the front side of the air outlet 2b and connected to the air outlet 2b, a first through hole 411 in fluid communication with the air outlet 2b is formed in a front wall plate of the air guide sleeve 4, a front end of the air guide sleeve 4 is movable relative to the hot air baffle 2, an air outlet direction of the first through hole 411 changes along with the movement of the corresponding air guide sleeve 4, a power input end of the air guide sleeve 4 is connected to the impeller 33, meanwhile, a second through hole 211 for guiding hot air is further formed in the baffle body 21, and the second through holes 211 are multiple and are circumferentially spaced around the air outlet 2b, that is, in this embodiment, there are two guiding forms of hot air, one of which is a conventional air outlet form that blows out through the second through hole 211; the other is the movable air outlet mode through the first through hole 411, and the combination of the two air outlet modes ensures the air outlet amount and also can give consideration to the uniformity when the hot air is blown out.

In this embodiment, there are at least two sets of wind-guiding sleeves 4, the rear side of the front wall plate of each wind-guiding sleeve 4 is further connected with a transmission shaft 5, the transmission shafts 5 are linked through a transmission member 6, the power output end of the impeller 33 is in driving connection with the transmission shaft 5 in one of the wind-guiding sleeves 4, specifically, the wind-guiding sleeve 4 comprises a first wind-guiding sleeve 4a in driving connection with the impeller 33 and second wind-guiding sleeves 4b arranged at intervals along the circumferential direction of the first wind-guiding sleeve 4a, the transmission member 6 is a transmission belt sequentially wound around each transmission shaft 5, the arrangement of the multiple wind-guiding sleeves 4 can improve the hot wind delivery efficiency, ensure that more uniform hot wind can be delivered to the inner container, the power input end of the multiple wind-guiding sleeves 4 is only the impeller 33, and through the linked design of the transmission member 6, only one driving part can realize the movement of the multiple wind-guiding sleeves 4, and the impeller 33 can, and an additional driving mechanism is not required to be added, so that the structure is more simplified.

In this embodiment, the air guiding sleeve 4 specifically includes an air guiding plate 41 and a flexible telescopic net 42, the air guiding plate 41 is disposed at the front side of the air outlet 2b and forms the front wall plate, and the flexible telescopic net 42 is connected between the air guiding plate 41 and the air outlet 2b and forms an air guiding channel 400 for guiding the hot air blown out from the air outlet 2b to the air guiding plate 41.

In the present embodiment, the front end of the air guide sleeve 4, i.e. the air guide plate 41, is movable in a swinging manner to blow out hot air, specifically, the transmission shaft 5 includes a mounting shaft 51 and a connecting shaft 52, the connecting shaft 52 is fixedly connected to the air guide plate 41, the mounting shaft 51 extends in the same direction as the output shaft of the motor 31, and the central axis of the mounting shaft 51 and the central axis of the connecting shaft 52 are offset, wherein the front end of the mounting shaft 51 has a slope 51a, and the connecting shaft 52 is mounted on the slope 51 a. Thus, with the rotation of the impeller 33, the air deflector 41 connected to the free end of the connecting shaft 52 can swing freely in the circumferential direction, and further, the uniform delivery of hot air to the inner container is realized.

In addition, in this embodiment, since there is a possibility that food in the inner container may directly contact the air guiding sleeve 4, so that the air guiding sleeve 4 does not swing smoothly, and at this time, if the impeller 33 continues to rotate, there may be an unrecoverable damage to the transmission structure, in this embodiment, a differential assembly 7 is disposed between the power output end of the impeller 33 and the first air guiding sleeve 4a, the differential assembly 7 includes a driving bevel gear 71 coaxially connected to the impeller 33, a driven bevel gear 72 connected to the transmission shaft 5 of the first air guiding sleeve 4a, and a planetary gear 73, the planetary gear 73 is engaged between the driving bevel gear 71 and the driven bevel gear 72, and when the impeller and the first air guiding sleeve 4a move synchronously, when one of the rotation speeds of the air guiding sleeves 4 becomes slow, the drive bevel gear 71 and the driven bevel gear 72 make a speed difference due to the planetary gears 73 engaged between the drive bevel gear 71 and the driven bevel gear 72 and the relative movement. The design of the differential assembly 7 avoids the damage of the transmission part caused by the difference of the rotating speeds of the impeller 33 and the air guide sleeve 4, provides the fault-tolerant rate for the rotation of the air guide sleeve 4, further ensures the durability of the equipment, and prolongs the service life of the equipment.

Claims

1. An inner container air guide system of cooking equipment comprises

An inner container (1) having a cooking cavity (1a) with an opening at the front side;

the hot air baffle (2) is arranged at the rear part of the cooking inner cavity (1a) and forms a hot air chamber (2a) with the rear wall of the cooking inner cavity (1a), and an air outlet (2b) is formed in the hot air baffle (2);

the hot air blower (3) is arranged on the rear wall plate of the inner container (1) and used for providing power for the air flow exchange between the cooking inner cavity (1a) and the hot air chamber (2a), the output end of the hot air blower is provided with an impeller (33), and the impeller (33) is rotatably arranged in the hot air chamber (2 a);

it is characterized by also comprising

The air guide sleeve (4) is located on the front side of the air outlet (2b) and connected to the air outlet (2b), a first through hole (411) communicated with the air outlet (2b) in a fluid mode is formed in a front wall plate of the air guide sleeve (4), the front end of the air guide sleeve (4) can move relative to the hot air baffle (2), the air outlet direction of the first through hole (411) changes along with the movement of the corresponding air guide sleeve (4), and the power input end of the air guide sleeve (4) is connected with the impeller (33).

2. The inner bladder air guide system of the cooking device as claimed in claim 1, wherein: the wind guide sleeve is characterized in that at least two groups of wind guide sleeves (4) are arranged, the rear side of the front wall plate of each wind guide sleeve (4) is also connected with a transmission shaft (5), the transmission shafts (5) are linked through a transmission part (6), and the power output end of the impeller (33) is in driving connection with the transmission shaft (5) in one wind guide sleeve (4).

3. The inner bladder air guide system of the cooking device as claimed in claim 2, wherein: the air guide sleeve (4) comprises a first air guide sleeve (4a) in driving connection with the impeller (33) and second air guide sleeves (4b) arranged at intervals along the circumferential direction of the first air guide sleeve (4a), and the transmission piece (6) is a transmission belt sequentially wound on each transmission shaft (5).

4. The inner bladder air guide system of the cooking device as claimed in claim 3, wherein: a differential assembly (7) is arranged between the power output end of the impeller (33) and the first air guide sleeve (4a), the differential assembly (7) comprises a driving bevel gear (71) coaxially connected with the impeller (33), a driven bevel gear (72) connected with a transmission shaft (5) of the first air guide sleeve (4a) and a planetary gear (73), and the planetary gear (73) is meshed between the driving bevel gear (71) and the driven bevel gear (72).

5. The inner container air guide system of the cooking device as claimed in any one of claims 1 to 4, wherein: the air guide sleeve (4) comprises an air guide plate (41) and a flexible telescopic net (42), the air guide plate (41) is arranged on the front side of the air outlet (2b) and forms the front wall plate, and the flexible telescopic net (42) is connected between the air guide plate (41) and the air outlet (2b) and forms an air guide channel (400) used for guiding hot air blown out of the air outlet (2b) to the air guide plate (41).

6. The inner bladder air guide system of the cooking device as claimed in claim 1, wherein: hot-blast baffle (2) include baffle body (21) and by curb plate (22) of the circumference of baffle body (21) backward extension, baffle body (21), curb plate (22) and inner bag (1) back wallboard enclose jointly and close and form hot-blast room (2a), just the air intake has been seted up on curb plate (22).

7. The inner bladder air guide system of the cooking appliance according to claim 6, wherein: the baffle body (21) is further provided with second through holes (211) for guiding hot air, and the second through holes (211) are arranged in a plurality of circumferential intervals around the air outlet (2 b).

8. The inner bladder air guide system of the cooking device as claimed in claim 1, wherein: the hot air blower (3) further comprises a motor (31) and a heating pipe (32), the heating pipe (32) is arranged in the hot air chamber (2a) and arranged in the circumferential direction of the impeller (33) in a surrounding mode, the motor (31) is arranged at the rear portion of the inner container (1), and the impeller (33) is connected to an output shaft of the motor (31).

9. The inner bladder air guide system of the cooking device as claimed in claim 2, wherein: the transmission shaft (5) comprises a mounting shaft (51) and a connecting shaft (52), the connecting shaft (52) is fixedly connected with the air deflector (41), the mounting shaft (51) and an output shaft of the motor (31) extend in the same direction, and the central axis of the mounting shaft (51) and the central axis of the connecting shaft (52) are arranged in a deflection mode.

10. The inner bladder air guide system of the cooking appliance as claimed in claim 9, wherein: the front end of the mounting shaft (51) is provided with a slope (51a), and the connecting shaft (52) is mounted on the slope (51 a).