CN215650651U

CN215650651U - Air heating assembly and cooking appliance comprising same

Info

Publication number: CN215650651U
Application number: CN202121546785.4U
Authority: CN
Inventors: 吕挺; 陈锡雁; 梁郁庆; 唐明辉
Original assignee: Zhejiang Tianxi Kitchen Appliance Co Ltd
Current assignee: Zhejiang Tianxi Kitchen Appliance Co Ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-01-28
Anticipated expiration: 2031-07-08

Abstract

The present invention relates to an air heating assembly and a cooking appliance comprising the same. The air heating component comprises a driving motor (12), a transmission mechanism (19) and a hot air fan blade (15). The hot air fan blades (15) and the driving motor (12) are arranged at intervals in the direction vertical to the motor shaft of the driving motor (12). The transmission mechanism (19) is respectively connected with a motor shaft of the driving motor (12) and the hot air fan blade (15), so that the hot air fan blade (15) can rotate under the driving of the driving motor (12). In the air heating assembly, the driving motor and the hot air fan blade are arranged at intervals in the direction perpendicular to the motor shaft, so that the increase of the height of the air heating assembly caused by overlapping the driving motor and the hot air fan blade is avoided.

Description

Air heating assembly and cooking appliance comprising same

Technical Field

The utility model relates to the field of kitchen appliances, in particular to an air heating assembly and a cooking appliance comprising the same.

Background

With the development of electronic technology, more and more automatic kitchen appliances appear in the market so as to meet various requirements of people. Particularly in the field of cooking appliances, the electronic control system is integrated in the cooking appliances, so that the cooking appliances can automatically execute cooking programs, and the efficiency of cooking operation is greatly improved.

The oven is a common cooking appliance, which uses a halogen tube or a heating tube to bake and cook food. However, the oven only radiatively heats the food, and cannot form a 360-degree three-dimensional toast. In addition, the oven temperature in the oven cooking cavity is not uniformly distributed, so that the optimal temperature for baking food is not reached, the food baking effect is not good, and the color quality is not uniform.

In recent years, air ovens (i.e., ovens having an air fryer function) that heat food using air have appeared on the market. The principle of the air oven is that high-temperature air heated by the heating element circulates in the cooking cavity through the hot air fan blades, and the food in the cooking cavity is heated by the air under the condition that edible oil is not added. Besides air ovens, electric cookers such as rice cookers, electric pressure cookers, or microwave ovens with an air fryer function are also on the market. The cooking appliance with the air fryer function (air frying function for short) can be used for making crisp, tasty, healthy and environment-friendly food under the oil-free condition. In order to perform the air fryer function, these cooking appliances are equipped with an air heating assembly having a motor and a hot wind blade to generate flowing hot wind.

In the existing air heating assembly, a motor shaft of a motor is directly and fixedly connected with a shaft hole of a hot air fan blade, so that the hot air fan blade can rotate under the driving of the motor. However, in order to fix the shaft hole of the hot wind blade and the motor shaft of the motor together, the motor and the hot wind blade need to be overlapped, which increases the height of the air heating assembly. The excessively high air heating assembly makes it necessary to increase the height of the cooking appliance in which the air heating assembly is installed, thereby affecting the shape structure and stability of the cooking appliance, particularly, the air oven and the air microwave oven.

Therefore, there is a need for improving the structure of the air heating assembly in order to improve the shape structure and stability of the cooking appliance.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an air heating assembly and a cooking appliance including the same, so as to solve the above technical problems.

The technical scheme of the utility model is as follows:

the utility model provides an air heating subassembly for cooking electrical apparatus, air heating subassembly includes driving motor, drive mechanism and hot-blast fan blade, and wherein hot-blast fan blade sets up with driving motor in the direction vertical with driving motor's motor shaft interval, and drive mechanism is connected with driving motor's motor shaft and hot-blast fan blade respectively for hot-blast fan blade can be rotatory under driving motor's drive.

According to the preferred embodiment of the utility model, the transmission mechanism comprises a first synchronizing wheel, a second synchronizing wheel and a synchronizing belt, the first synchronizing wheel is fixedly connected with the motor shaft, the second synchronizing wheel is fixedly connected with the hot air fan blade through a transmission shaft, and the synchronizing belt is sleeved on the first synchronizing wheel and the second synchronizing wheel, so that the second synchronizing wheel can rotate under the driving of the first synchronizing wheel.

According to the preferred embodiment of the utility model, the air heating assembly further comprises a heating pipe cover and a heating pipe arranged below the heating pipe cover, the hot air fan blade is arranged between the heating pipe cover and the heating pipe, a transmission shaft hole is formed in the heating pipe cover, and the transmission shaft penetrates through the transmission shaft hole and is fixedly connected with the hot air fan blade.

According to the preferred embodiment of the utility model, the transmission mechanism further comprises a bearing sleeve, a first bearing and a second bearing which are respectively fixed at the upper end and the lower end of the bearing sleeve, the bearing sleeve is arranged in the transmission shaft hole, and the transmission shaft penetrates through the first bearing, the bearing sleeve and the second bearing and then is fixedly connected with the hot air fan blade.

According to the preferred embodiment of the utility model, the hot air fan blade comprises a fan blade shaft hole, and the transmission shaft penetrates through the fan blade shaft hole and is fixedly connected with the hot air fan blade.

According to the preferred embodiment of the utility model, the air heating assembly further comprises a motor fixing frame, and the driving motor is fixedly connected with the heating pipe cover through the motor fixing frame.

According to the preferred embodiment of the utility model, the transmission mechanism further comprises a bearing sleeve fixing frame, the bearing sleeve fixing frame is fixed above the heating tube cover, and the bearing sleeve is fixed in the bearing sleeve fixing frame.

According to a preferred embodiment of the utility model, the transmission mechanism further comprises a first snap ring and a second snap ring fixed to the transmission shaft, the first snap ring being located above the first bearing and the second snap ring being located below the second bearing, such that the first bearing, the bearing housing and the second bearing are confined between the first snap ring and the second snap ring.

A cooking appliance comprising an air heating assembly according to the above description, said air heating assembly being fixed above a cooking cavity of said cooking appliance.

According to a preferred embodiment of the utility model, the cooking appliance is an air oven or an air microwave oven.

According to the technical scheme, the driving motor and the hot air fan blades are arranged at intervals in the direction perpendicular to the motor shaft in the air heating assembly, so that the increase of the height of the air heating assembly caused by overlapping of the driving motor and the hot air fan blades is avoided. Due to the fact that the height of the air heating assembly is low, the height of a cooking appliance provided with the air heating assembly can be reduced, the appearance effect and stability of the cooking appliance are improved, and user experience is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.

FIG. 1 is an exploded view of an air heating assembly according to an embodiment of the present invention;

fig. 2 is a sectional view of a cooking appliance according to an embodiment of the present invention.

Description of reference numerals:

1-a first synchronizing wheel; 2-a second synchronizing wheel; 3-a synchronous belt; 4-bearing bush fixing frame; 5-a first snap ring; 6-a transmission shaft;

7-a second snap ring; 8-a first bearing; 9-bearing sleeve; 10-a second bearing; 11-motor fixing frame; 12-a drive motor; 13-heating tube cover; 14-a heating tube; 15-hot air fan blades; 16-a gasket; 17-a nut; 18-a cooking cavity; 19-transmission mechanism.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the utility model, its application, or uses. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. It should be noted that the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

FIG. 1 is an exploded view of an air heating assembly according to an embodiment of the present invention. Fig. 2 is a sectional view of a cooking appliance mounted with an air heating assembly according to an embodiment of the present invention. An air heating assembly and a cooking appliance including the same according to an embodiment of the present invention will be described in detail with reference to fig. 1 and 2.

As shown in fig. 1 and 2, the air heating assembly according to the embodiment of the present invention includes a driving motor 12, a transmission mechanism 19, and a hot wind blade 15. The drive motor 12 may be, for example, a shaded pole motor. The hot air fan blades 15 and the driving motor 12 are arranged at intervals in the direction vertical to the motor shaft of the driving motor 12. The transmission mechanism 19 is respectively connected with a motor shaft of the driving motor 12 and the hot air fan blade 15, so that the hot air fan blade 15 can rotate under the driving of the driving motor 12. Through the transmission mechanism 19 arranged between the driving motor 12 and the hot air fan blades 15, the power of the driving motor 12 can be transmitted to the hot air fan blades 15 arranged at transverse intervals. Compared with the technical scheme of longitudinal superposition in the prior art, the driving motor 12 and the hot air fan blade 15 which are arranged at intervals transversely can obviously reduce the height of the air heating component in the longitudinal direction, and further can reduce the height of a cooking appliance provided with the air heating component. The cooking appliance with the height reduced is low in gravity center, high in stability and more attractive in shape and structure, and therefore user experience of the cooking appliance can be improved.

In the present embodiment, the transmission mechanism 19 may be implemented by a belt transmission mechanism. In particular, the transmission mechanism 19 may comprise a first synchronizing wheel 1, a second synchronizing wheel 2 and a timing belt 3. The first synchronizing wheel 1 is fixedly connected with a motor shaft. The second synchronizing wheel 2 is fixedly connected with a hot air fan blade 15 through a transmission shaft 6. The synchronous belt 3 is sleeved on the first synchronous wheel 1 and the second synchronous wheel 2, so that the second synchronous wheel 2 can be driven by the first synchronous wheel 1 to rotate. First 1 and second 2 synchronizing wheels in other embodiments the transmission 19 can also be realized, for example, by a gear transmission.

In the present embodiment, the air heating assembly further includes a heat generation tube cover 13 and a heat generation tube 14 disposed below the heat generation tube cover 13. The hot air fan blade 15 is arranged between the heating tube cover 13 and the heating tube 14. The heating pipe cover 13 is provided with a transmission shaft hole. The transmission shaft 6 penetrates through the transmission shaft hole and is fixedly connected with the hot air fan blade 15. When the hot wind blade 15 is driven by the transmission shaft to rotate, the hot wind blade 15 drives air to flow through the heating tube 14 to heat and then flow to food in the cooking cavity 18 of the cooking appliance, so that the food is cooked by using the hot air, and the air-frying effect is realized. The air heating assembly may further include a motor mount 11. The driving motor 12 is fixedly connected with the heating tube cover 13 through a motor fixing frame 11.

In this embodiment, the transmission mechanism 19 may further include a bearing housing 9 and a first bearing 8 and a second bearing 10 fixed to an upper end and a lower end of the bearing housing 9, respectively. The first bearing 8 and the second bearing 10 may be bearings of the same specification and fixed in the bearing housing 9. The bearing sleeve 9 is arranged in the transmission shaft hole. The transmission shaft 6 penetrates through the first bearing 8, the bearing sleeve 9 and the second bearing 10 and then is fixedly connected with the hot air fan blade 15. The hot air fan 15 includes a fan shaft hole. The transmission shaft 6 penetrates through the fan blade shaft hole and is fixedly connected with the hot air fan blade 15. A nut 17 (e.g., a counter nut) may be screwed on an end of the driving shaft 6 so that the hot wind blade 15 is fixed on the driving shaft 6. The transmission mechanism 19 may also comprise a bearing housing holder 4. The bearing bush holder 4 is fixed (e.g., by screws) above the heat pipe cover 13. The bearing bush 9 is fixed (for example by spin riveting) in the bearing bush holder 4 and passes through the drive shaft hole. The upper end portion and the lower end portion of the bearing housing 9 are fixed by the bearing fixing frame 4 and the transmission shaft hole, respectively, so that the position of the bearing housing 9 can be stably fixed.

In this embodiment, the transmission mechanism 19 may further comprise a first snap ring 5 and a second snap ring 7 fixed to the transmission shaft 6 for defining the position of the first bearing 8, the bearing housing 9 and the second bearing 10 on the transmission shaft 6. Specifically, the first snap ring 5 is located above the first bearing 8, and the second snap ring 7 is located below the second bearing 10, such that the first bearing 8, the bearing housing 9, and the second bearing 10 are confined between the first snap ring 5 and the second snap ring 7. A gasket 16 may be disposed between the second snap ring 7 and the hot wind blade 15 to cushion the second snap ring 7.

Fig. 2 shows a cooking appliance mounted with an air heating assembly according to the above described embodiments. As shown in fig. 2, the air heating assembly is fixed above the cooking chamber 18, and the heat pipe cover 13 may be fixed above the cooking chamber 18 by screws, for example. The hot air generated by the air heating assembly can flow from top to bottom toward the food in the cooking chamber 18 to air heat the food. The cooking appliance may be any cooking appliance having an air fryer function (air-fry function), such as an air fryer, an air oven, an air microwave, and the like.

By using the air heating assembly provided by the embodiment of the utility model, the height of the cooking appliance can be obviously reduced, so that the shape structure and stability of the cooking appliance are improved, and the user experience of the cooking appliance is improved.

So far, some specific embodiments of the present invention have been described in detail by way of examples, but it should be understood by those skilled in the art that the above examples are only for illustrative purposes and are not intended to limit the scope of the present invention. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the utility model.

Claims

1. The air heating assembly is used for an electric cooking appliance and is characterized by comprising a driving motor (12), a transmission mechanism (19) and hot air blades (15), wherein the hot air blades (15) and the driving motor (12) are arranged at intervals in the direction perpendicular to the motor shaft of the driving motor (12), and the transmission mechanism (19) is connected with the motor shaft of the driving motor (12) and the hot air blades (15) respectively, so that the hot air blades (15) can rotate under the driving of the driving motor (12).

2. The air heating assembly according to claim 1, wherein the transmission mechanism (19) comprises a first synchronizing wheel (1), a second synchronizing wheel (2) and a synchronizing belt (3), the first synchronizing wheel (1) is fixedly connected with a motor shaft, the second synchronizing wheel (2) is fixedly connected with the hot air fan blade (15) through a transmission shaft (6), and the synchronizing belt (3) is sleeved on the first synchronizing wheel (1) and the second synchronizing wheel (2) so that the second synchronizing wheel (2) can rotate under the driving of the first synchronizing wheel (1).

3. The air heating assembly according to claim 2, further comprising a heating tube cover (13) and a heating tube (14) disposed below the heating tube cover (13), wherein the hot air blade (15) is disposed between the heating tube cover (13) and the heating tube (14), the heating tube cover (13) is provided with a transmission shaft hole, and the transmission shaft (6) penetrates through the transmission shaft hole and is fixedly connected with the hot air blade (15).

4. The air heating assembly according to claim 3, wherein the transmission mechanism (19) further comprises a bearing sleeve (9), and a first bearing (8) and a second bearing (10) which are respectively fixed at the upper end and the lower end of the bearing sleeve (9), the bearing sleeve (9) is arranged in a transmission shaft hole, and the transmission shaft (6) is fixedly connected with the hot air fan blade (15) after passing through the first bearing (8), the bearing sleeve (9) and the second bearing (10).

5. The air heating assembly according to claim 3, wherein the hot air blade (15) comprises a blade shaft hole, and the transmission shaft (6) penetrates through the blade shaft hole to be fixedly connected with the hot air blade (15).

6. The air heating assembly according to claim 3, further comprising a motor mount (11), wherein the driving motor (12) is fixedly connected with the heat pipe cover (13) through the motor mount (11).

7. Air heating assembly according to claim 4, wherein the transmission mechanism (19) further comprises a bearing bush mount (4), the bearing bush mount (4) being fixed above the heat generating pipe cover (13), the bearing bush (9) being fixed in the bearing bush mount (4).

8. The air heating assembly according to claim 4, wherein the transmission mechanism (19) further comprises a first snap ring (5) and a second snap ring (7) fixed to the transmission shaft (6), the first snap ring (5) being located above the first bearing (8), the second snap ring (7) being located below the second bearing (10), such that the first bearing (8), the bearing housing (9) and the second bearing (10) are confined between the first snap ring (5) and the second snap ring (7).

9. Cooking appliance, characterized in that it comprises an air heating assembly according to any one of the preceding claims, which is fixed above a cooking cavity of the cooking appliance.

10. The cooking appliance according to claim 9, wherein the cooking appliance is an air oven or an air microwave oven.