Cooking utensil with long service life of motor

Abstract

The utility model provides a cooking utensil with a long service life of the motor, aiming to solve the problem in the prior art that the motor on the cooking utensil is arranged on the upper side of the hot air cavity and the motor output shaft is directly connected to the hot air fan, which leads to the reduction of the service life of the motor due to high temperature radiation and the easy drying of the lubricating oil on the motor output shaft. A cooking utensil with a long service life of the motor comprises: a body, wherein the body is provided with a cooking cavity, a hot air cavity connected to the cooking cavity, and a motor mounting cavity separated from both the cooking cavity and the hot air cavity, and the motor mounting cavity is located on the side of the hot air cavity; a hot air circulation component arranged in the hot air cavity, comprising a hot air fan and a heating element; a motor arranged in the motor mounting cavity; and a transmission component arranged between the motor and the hot air fan, wherein the motor drives the hot air fan to operate through the transmission component. The utility model reduces the high temperature radiation to which the motor is subjected and prolongs the service life of the motor.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen utensils for cooking food, and in particular relates to a cooking utensil with a motor having a long service life. Background Art

[0002] At present, cooking appliances used in the kitchen, such as air fryers, ovens, and air frying microwave ovens, are usually provided with a hot air cavity connected to the cooking cavity. The hot air cavity is provided with a hot air fan and a heating pipe. When working, the hot air fan circulates the hot air back and forth between the cooking cavity and the hot air cavity, and the hot air fan is usually driven by a motor. The motor in the prior art is directly arranged on the upper side of the hot air cavity, and the output shaft of the motor is directly connected to the hot air fan. Since the motor is too close to the hot air cavity and the hot air fan transfers heat to the motor through the output shaft of the motor, the heat transfer is fast, and the motor is easily affected by high temperature radiation, resulting in a reduced service life. In addition, the lubricating oil on the output shaft of the motor is also easily dried out, resulting in problems such as abnormal rotation. Utility Model Content

[0003] The utility model provides a cooking utensil with a long service life of the motor, aiming to solve the problem in the prior art that the motor on the cooking utensil is arranged on the upper side of the hot air chamber and the motor output shaft is directly connected to the hot air fan, which causes the motor to be affected by high temperature radiation and has a shortened service life, and the lubricating oil on the motor output shaft is easily dried out.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A cooking utensil with a motor having a long service life, comprising:

[0006] A machine body, wherein a cooking cavity, a hot air cavity communicated with the cooking cavity, and a motor installation cavity separated from both the cooking cavity and the hot air cavity are provided in the machine body, and the motor installation cavity is located on a side of the hot air cavity;

[0007] A hot air circulation component is arranged in the hot air chamber, and the hot air circulation component includes a hot air fan and a heating element;

[0008] a motor, disposed in the motor mounting cavity; and

[0009] The transmission assembly is arranged between the motor and the hot air fan, and the motor drives the hot air fan to operate through the transmission assembly.

[0010] A further solution: The transmission assembly is a belt transmission assembly, which includes a transmission belt, a first pulley arranged on the output shaft of the motor, and a second pulley arranged on the fan shaft of the hot air fan, and the transmission belt is sleeved on the first pulley and the second pulley.

[0011] Based on the above technical solution: belt drive is suitable for transmission with a longer distance between two shafts, so that the motor can be set at a farther distance from the hot air chamber. The farther the motor is from the hot air chamber, the less it is exposed to high-temperature radiation; the motor output shaft and the fan shaft are driven by a transmission belt, which has the advantages of smooth operation and low noise.

[0012] A further solution: annular grooves are provided on the first belt pulley and the second belt pulley, and the transmission belt is sleeved on the annular grooves of the first belt pulley and the second belt pulley.

[0013] Based on the above technical solution: the transmission belt is sleeved on the annular grooves of the first pulley and the second pulley, thereby preventing the transmission belt from axially separating from the first pulley or the second pulley.

[0014] A further solution: the cooking cavity is located at the lower side of the hot air cavity, and the hot air cavity and the motor installation cavity are arranged side by side in the body; a heat insulation cover is provided in the body, and the heat insulation cover surrounds the hot air cavity and separates the hot air cavity from the motor installation cavity.

[0015] Based on the above technical solution: by arranging a heat insulation cover in the machine body to enclose a hot air cavity and separate the hot air cavity from the motor installation cavity, the heat radiated from the hot air cavity to the motor installation cavity is reduced, thereby reducing the high temperature radiation to the motor and extending the service life of the motor.

[0016] A further solution is that a fixed cover is also provided in the body, the fixed cover is located on the upper side of the heat insulation cover and forms a cold air cavity with the upper surface of the heat insulation cover, a cooling fan is provided in the cold air cavity and the cooling fan and the hot air fan are coaxially arranged on the fan shaft.

[0017] Based on the above technical solution: the cooling fan is used to dissipate heat, and the heat radiated from the hot air cavity is discharged to the outside of the machine body in time, so as to further reduce the influence of high temperature radiation on the motor.

[0018] A further solution: a bearing is provided between the fan shaft of the hot air fan and the heat insulation cover and the bearing is located on the upper side of the heat insulation cover, the lower end of the fan shaft of the hot air fan passes through the heat insulation cover and is fixedly connected to the hot air fan, and the upper end of the fan shaft of the hot air fan is fixedly connected to the cooling fan.

[0019] Based on the above technical solution: the bearing is arranged on the upper side of the heat insulation cover, so that the heat insulation cover separates the bearing from the hot air cavity, thereby preventing the hot air in the hot air cavity from blowing directly onto the bearing, causing the bearing lubricating oil to be dried out. At the same time, the cooling fan can also dissipate heat for the bearing when working.

[0020] A further solution: the second pulley is located between the hot air fan and the heat dissipation fan and in the cold air chamber, and the fixed cover is provided with a clearance hole for the transmission belt to pass through.

[0021] Based on the above technical solution: the second pulley and the transmission belt are both located in the cold air chamber, so that the cooling fan can dissipate heat for the second pulley and the transmission belt when working, thereby extending their service life.

[0022] A further solution is that a ventilation net is provided on the rear side of the machine body, an air guide cover is provided inside the machine body, a cold air channel connecting the cold air cavity and the ventilation net and a hot air channel connecting the hot air cavity and the ventilation net are provided inside the air guide cover.

[0023] Based on the above technical solution: when the heat dissipation fan is working, the heat is dissipated to the outside of the machine body through the cold air channel and the ventilation net.

[0024] A further solution: a motor bracket is fixedly provided in the motor installation cavity, and the motor is fixedly arranged on the motor bracket.

[0025] A further solution: a heat dissipation hole connecting the motor installation cavity with the outside is provided on the outer shell of the machine body.

[0026] Based on the above technical solution: the heat dissipation holes are used to dissipate heat from the motor to the outside of the casing, further protecting the motor from being affected by high temperature.

[0027] The beneficial effects of the utility model are:

[0028] The utility model separates the motor installation cavity from the hot air cavity and the cooking cavity, thereby reducing the high temperature radiation from the hot air cavity to the motor, thereby increasing the service life of the motor, and the motor installation cavity is arranged on the side of the hot air cavity, thereby avoiding the problem that the hot air in the hot air cavity is directly blown onto the motor through the gap between the fan shaft and the heat insulation cover. In addition, the output shaft of the motor of the utility model is located in the motor installation cavity, and the motor drives the hot air fan to operate through the transmission assembly, so that the output shaft of the motor does not need to be directly connected to the hot air fan, thereby reducing the high temperature radiation from the hot air cavity to the motor output shaft, thereby reducing the risk of the lubricating oil on the motor output shaft being dried out by high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of a cooking utensil with a motor having a long service life.

[0031] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A.

[0032] Figure 3 It is a schematic diagram of the structure of the motor of the utility model in the motor installation cavity.

[0033] Figure 4 It is a schematic diagram of the exploded structure of the motor and the transmission assembly of the utility model.

[0034] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure at B.

[0035] Description of the numbers in the figure:

[0036] 1-machine body; 11-hot air chamber; 12-cold air chamber; 13-motor installation chamber; 14-cooking chamber; 141-cavity; 15-heat insulation cover; 16-fixing cover; 161-clearance hole; 17-heat dissipation hole; 18-wind guide cover; 19-ventilation net; 2-motor bracket; 3-hot air fan; 4-cooling fan; 5-transmission assembly; 51-transmission belt; 52-first pulley; 53-second pulley; 54-fan shaft; 6-motor; 7-bearing; 71-sleeve pressure cover; 72-sleeve. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0038] like Figures 1 to 4 As shown, this embodiment provides a cooking appliance with a motor having a long service life, comprising:

[0039] A machine body 1, wherein a cooking cavity 14, a hot air cavity 11 connected to the cooking cavity 14, and a motor installation cavity 13 separated from both the cooking cavity 14 and the hot air cavity 11 are provided in the machine body 1, and the motor installation cavity 13 is located on the side of the hot air cavity 11, preferably, the motor installation cavity 13 and the hot air cavity 11 are arranged side by side, and the motor installation cavity 13 is arranged on the left or right side of the hot air cavity 11;

[0040] A hot air circulation component is arranged in the hot air chamber 11, and the hot air circulation component includes a hot air fan 3 and a heating element;

[0041] The motor 6 is arranged in the motor installation cavity 13; and

[0042] The transmission assembly 5 is arranged between the motor 6 and the hot air fan 3, and the motor 6 drives the hot air fan 3 to operate through the transmission assembly 5. Specifically, the output shaft of the motor 6 is connected to the input end of the transmission assembly 5, and the output end of the transmission assembly 5 is connected to the hot air fan 3.

[0043] In the present embodiment, since the motor installation cavity 13 is separated from the hot air cavity 11 and the cooking cavity 14, the hot air cavity 11 can be separated from the motor installation cavity 13 by the heat insulation cover 15, and the cooking cavity 14 can be separated from the motor installation cavity 13 by the cavity 141 in the machine body 1 that encloses the cooking cavity 14. Therefore, when the hot air circulation component is started, it can effectively prevent the hot air blown by the hot air fan 3 from entering the motor installation cavity 13, thereby reducing the high temperature radiation to which the motor 6 is subjected.

[0044] In this embodiment, Figures 1 to 5 As shown, as a preferred embodiment, the transmission assembly 5 is preferably a belt transmission assembly 5, and the belt transmission assembly 5 includes a transmission belt 51, a first pulley 52 fixedly mounted on the output shaft of the motor 6, and a second pulley 53 fixedly mounted on the fan shaft 54 ​​of the hot air fan 3, and the transmission belt 51 is mounted on the first pulley 52 and the second pulley 53.

[0045] As a specific structure of the first pulley 52 and the second pulley 53, the first pulley 52 and the second pulley 53 are both provided with annular grooves, and the transmission belt 51 is sleeved on the annular grooves of the first pulley 52 and the second pulley 53. The first pulley 52 and the second pulley 53 can be set to a shape that is thin in the middle and thick at both ends, so as to facilitate the transmission belt 51 to be sleeved on the annular grooves of the first pulley 52 and the second pulley 53, thereby avoiding the transmission belt 51 from detaching from the first pulley 52 or the second pulley 53 during operation.

[0046] In this embodiment, the cooking appliance can be an air fryer, an oven or a microwave oven, etc. The cooking cavity 14 is located at the lower side of the hot air cavity 11, and the hot air cavity 11 and the motor installation cavity 13 are arranged side by side in the machine body 1; a heat insulation cover 15 is arranged in the machine body 1, and the heat insulation cover 15 surrounds the hot air cavity 11 and separates the hot air cavity 11 from the motor installation cavity 13. Among them, the cooking cavity 14 is surrounded by a cavity 141, and the cavity 141 separates the cooking cavity 14 from the motor installation cavity 13, and the hot air cavity 11 is connected to the cooking cavity 14. When the hot air circulation component is working, the hot air circulates in the hot air cavity 11 and the cooking cavity 14. Due to the isolation effect of the heat insulation cover 15 and the cavity 141, the circulating hot air will not enter the motor installation cavity 13.

[0047] like Figures 1 to 5 As shown, in this embodiment, in order to further dissipate the heat radiated from the hot air cavity 11 through the heat insulation cover 15, a fixed cover 16 is further provided in the body 1, and the fixed cover 16 is located on the upper side of the heat insulation cover 15 and forms a cold air cavity 12 with the upper surface of the heat insulation cover 15, and a cooling fan 4 is provided in the cold air cavity 12 and the cooling fan 4 is coaxially arranged on the fan shaft 54 ​​with the hot air fan 3.

[0048] A bearing 7 is provided between the fan shaft 54 ​​of the hot air fan 3 and the heat insulation cover 15, and the bearing 7 is located on the upper side of the heat insulation cover 15. The lower end of the fan shaft 54 ​​of the hot air fan 3 is fixedly connected to the hot air fan 3 after passing through the heat insulation cover 15, and the upper end of the fan shaft 54 ​​of the hot air fan 3 is fixedly connected to the heat dissipation fan 4. The fixed connection can be connected by a threaded connection and fixed by a nut. Among them, in order to fix the bearing 7, a sleeve pressure cover 71 and a sleeve 72 located on the upper side of the sleeve pressure cover 71 are fixedly provided on the heat insulation cover 15, and the bearing 7 is arranged between the sleeve pressure cover 71 and the sleeve 72. In order to facilitate the heat dissipation fan 4 to discharge heat to the outside, a ventilation net 19 can be provided on the rear cover of the body 1, and an air guide cover 18 is provided in the body 1, and the cold air chamber 12 and the hot air chamber 11 are connected to the ventilation net 19 through the air guide cover 18. Specifically, a cold air channel connecting the cold air cavity 12 and the ventilation net 19 and a hot air channel connecting the hot air cavity 11 and the ventilation net 19 are provided in the air guide cover 18 .

[0049] In this embodiment, in order to further dissipate the heat of the transmission belt 51, the second pulley 53 is located between the hot air fan 3 and the heat dissipation fan 4 and in the cold air chamber 12, and the fixed cover 16 is provided with a clearance hole 161 for the transmission belt 51 to pass through. The transmission belt 51 is arranged in the cold air chamber 12, so that the heat dissipation fan 4 can dissipate the heat of the transmission belt 51 when it is working, thereby reducing its heat radiation effect on the motor 6. At the same time, when the heat dissipation fan 4 is working, it can also blow cold air into the motor installation chamber 13 through the clearance hole 161, thereby playing a role in cooling the motor 6.

[0050] In this embodiment, Figure 3 and Figure 4 As shown, in order to fix the motor 6 in the motor installation cavity 13, a motor bracket 2 is fixedly provided in the motor installation cavity 13, and the motor 6 is fixedly provided on the motor bracket 2. Specifically, the motor bracket 2 includes two support plates and a connecting plate connecting the upper ends of the two support plates, the lower ends of the two support plates are fixedly provided in the machine body 1, and the motor 6 is fixedly provided on the connecting plate.

[0051] On the basis of the above heat dissipation method, in order to further prevent the motor 6 from being affected by high temperature radiation, this embodiment provides a heat dissipation hole 17 connecting the motor installation cavity 13 with the outside world on the shell of the body 1. Specifically, the heat dissipation hole 17 can be arranged in several rows to facilitate the heat dissipation of the motor 6 to the outside world.

[0052] Working principle description:

[0053] In this embodiment, the motor 6 is arranged on the side of the hot air chamber 11, and the hot air chamber 11 is separated from the motor installation chamber 13 by a heat insulation cover 15, and the cooking chamber 14 is separated from the motor installation chamber 13 by a cavity 141 in the machine body 1 that encloses the cooking chamber 14. The motor 6 drives the hot air fan 3 to operate through the belt transmission assembly 5, avoiding the output shaft of the motor 6 from being directly connected to the hot air fan 3, thereby reducing the high temperature radiation from the hot air chamber 11 to which the motor 6 is subjected.

[0054] The present utility model is not limited to the above optional implementation modes. Under the premise of not conflicting with each other, the various schemes can be combined arbitrarily. Anyone can derive other forms of products under the inspiration of the present utility model. However, no matter what changes are made in their shapes or structures, all technical schemes that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. A cooking appliance with a motor having a long service life, characterized in that: include: A machine body, wherein a cooking cavity, a hot air cavity communicated with the cooking cavity, and a motor installation cavity separated from both the cooking cavity and the hot air cavity are provided in the machine body, and the motor installation cavity is located on a side of the hot air cavity; A hot air circulation component is arranged in the hot air chamber, and the hot air circulation component includes a hot air fan and a heating element; a motor, disposed in the motor mounting cavity; and The transmission assembly is arranged between the motor and the hot air fan, and the motor drives the hot air fan to operate through the transmission assembly.

2. A cooking utensil with a motor having a long service life according to claim 1, characterized in that: The transmission assembly is a belt transmission assembly, which includes a transmission belt, a first pulley arranged on the output shaft of the motor, and a second pulley arranged on the fan shaft of the hot air fan, and the transmission belt is sleeved on the first pulley and the second pulley.

3. The cooking utensil with a long motor service life according to claim 2, characterized in that: The first belt pulley and the second belt pulley are both provided with an annular groove, and the transmission belt is sleeved on the annular grooves of the first belt pulley and the second belt pulley.

4. The cooking utensil with a long motor service life according to claim 2, characterized in that: The cooking cavity is located at the lower side of the hot air cavity, and the hot air cavity and the motor installation cavity are arranged side by side in the body; a heat insulation cover is arranged in the body, and the heat insulation cover surrounds the hot air cavity and separates the hot air cavity from the motor installation cavity.

5. The cooking utensil with a long motor service life according to claim 4, characterized in that: A fixed cover is also provided in the body, which is located on the upper side of the heat insulation cover and forms a cold air cavity with the upper surface of the heat insulation cover. A cooling fan is provided in the cold air cavity and the cooling fan and the hot air fan are coaxially arranged on the fan shaft.

6. The cooking utensil with a long motor service life according to claim 5, characterized in that: A bearing is provided between the fan shaft of the hot air fan and the heat insulation cover and the bearing is located on the upper side of the heat insulation cover, the lower end of the fan shaft of the hot air fan passes through the heat insulation cover and is fixedly connected to the hot air fan, and the upper end of the fan shaft of the hot air fan is fixedly connected to the cooling fan.

7. The cooking utensil with a long motor service life according to claim 5, characterized in that: The second pulley is located between the hot air fan and the heat dissipation fan and in the cold air chamber, and the fixed cover is provided with a clearance hole for the transmission belt to pass through.

8. The cooking utensil with a long motor service life according to claim 5, characterized in that: A ventilation net is arranged at the rear side of the machine body, an air guide cover is arranged inside the machine body, and a cold air channel connecting the cold air cavity and the ventilation net and a hot air channel connecting the hot air cavity and the ventilation net are arranged inside the air guide cover.

9. The cooking utensil with a long motor service life according to claim 1, characterized in that: A motor bracket is fixedly arranged in the motor installation cavity, and the motor is fixedly arranged on the motor bracket.

10. The cooking utensil with a long motor service life according to claim 1, characterized in that: The outer shell of the machine body is provided with heat dissipation holes connecting the motor installation cavity with the outside world.

Images