Air-cooled System Integration Module and Micro Steam Oven

Abstract

The present invention provides an air-cooling system integration module, belonging to the technical field of micro steam ovens; it includes an air-cooling unit, a variable-frequency board and a power supply board. The air-cooling unit includes a base in a trough shape, an air duct diversion cover clamped at the notch end of the base, an air induction component, and an air inlet cover covering the air induction component; the air duct diversion cover and the air induction component respectively cover the notch end of the base to form a closed cavity, the variable-frequency board and the power supply board are arranged in the closed cavity, and an air outlet group is arranged on the same side wall of the closed cavity; the air-cooling system integration module is convenient to install, has a low manufacturing cost, and has the structural characteristics of air duct diversion and multiple air ducts. Another provided is a micro steam oven adopting the air-cooling system integration module. The diversion air duct structure effectively solves the problem of poor heat dissipation of the existing micro steam oven, and the multiple air duct structure can effectively dissipate heat for different positions and directions of different machine components, solving the problem that the machine components cannot be reasonably arranged due to structural limitations.

Description

Technical Field

[0001] The present invention relates to the technical field of micro steam ovens, and in particular to an air-cooling system integration module and a micro steam oven using the air-cooling system integration module. Background Art

[0002] With the continuous improvement of people's living standards, the pursuit of quality of life has become increasingly strict. The food made by a microwave oven has a large loss of moisture and nutrients, and the taste is very poor, which can no longer meet people's needs. Therefore, more and more people begin to replace the microwave oven and use microwave as an auxiliary function. As a result, a micro steam and grill combination oven appears, which can save time when steaming or grilling, and also increase the choice of cooking methods and flavors. The micro steam and grill combination oven is a combination of micro steaming and micro grilling, and is also a deeper utilization of the microwave function, that is, microwave can be used to assist in accelerating the steaming and grilling speed when steaming and grilling. However, the three functions of micro steaming, micro grilling, and steaming and grilling cannot be used simultaneously, and only the combinations of micro steaming and micro grilling, and steaming and grilling are available.

[0003] Most of the heat dissipation methods of commercially available micro steam ovens are to directly blow air-cooling to some components at the top of the machine through a fan at the top of the machine. However, this heat dissipation method cannot form a good convection, and can only blow air in one direction, resulting in poor heat dissipation effect on the top components and affecting the use performance of the whole machine components; in addition, the structural layout of the top components will also be restricted by this, and they need to be placed in front of the fan outlet, so that they cannot be reasonably arranged. Moreover, there are many components placed in front of the fan outlet, which also cannot achieve good heat dissipation and there are certain safety hazards. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an air-cooling system integration module, which is easy to install, has a low manufacturing cost, and has the structural characteristics of air duct diversion and multiple air ducts; another micro steam oven using the air-cooling system integration module is provided. The diversion air duct structure effectively solves the problem of poor heat dissipation of the existing micro steam oven, and the multiple air duct structure can effectively dissipate heat for different positions and directions of different machine components, and solves the problem that the machine components cannot be reasonably arranged due to structural limitations.

[0005] The invention provides the following technical solution: an air-cooling system integration module, which includes an air-cooling unit, a variable-frequency board and a power supply board disposed within the air-cooling unit; preferably, the air-cooling unit includes a trough-shaped base, an air duct flow guide cover clamped to the notch end of the base, an air induction assembly, and an air inlet cover disposed over the air induction assembly; the air duct flow guide cover and the air induction assembly respectively cover the notch end of the base to form a closed cavity, and the variable-frequency board and the power supply board are disposed within the closed cavity; an air outlet group is provided on the same side wall of the closed cavity. Under the suction of the air induction assembly, after the outside air enters the closed cavity through the air inlet cover, the heat generated by the variable-frequency board and the power supply board therein is dissipated through the air outlet group respectively. The design of this air flow guide duct effectively solves the problem of poor heat dissipation of the main heat dissipation components in the existing micro steam oven, such as the heat dissipation of the variable-frequency board and the power supply board.

[0006] Preferably, the air outlet group includes a B air outlet and a C air outlet; corresponding notches are provided on the side walls of the air duct flow guide cover and the base, and the two correspondingly arranged notches form the B air outlet and the C air outlet after being covered; the variable-frequency board is clamped to the base and is located at the B air outlet; the power supply board is clamped to the base and is located at the C air outlet.

[0007] Preferably, the inner wall of the air duct flow guide cover is successively provided with a straight flow guide plate, a first folded flow guide plate and a second folded flow guide plate along the direction of air flow within the closed cavity; the straight flow guide plate is perpendicular to the direction of air flow within the closed cavity and faces the B air outlet; the first folded flow guide plate is arranged along the direction of air flow within the closed cavity, and its bending direction faces the C air outlet. This multi-channel air duct structure can effectively dissipate heat for different positions and directions of different machine components, and solve the problem that the machine components cannot be reasonably arranged due to structural limitations.

[0008] Preferably, a wiring port for facilitating the wiring of the variable-frequency board and the power supply board is provided on the side wall of the closed cavity away from the air outlet group; the second folded flow guide plate is arranged along the direction of air flow within the closed cavity, and its bending direction is away from the wiring port. This structural design makes the air outlet end of the closed cavity consistent, which is convenient for the reasonable design of the whole machine.

[0009] Preferably, the air induction component includes a wind wheel cover fixedly arranged at the notch end of the base, a motor bracket arranged on the outer side surface of the wind wheel cover, an air-cooled motor arranged on the motor bracket, and a wind wheel arranged on the output shaft of the air-cooled motor; the wind wheel is located in the closed cavity, through holes are formed in the wind wheel cover, the output shaft of the air-cooled motor passes through the through holes to be connected with the wind wheel, and driven by the air-cooled motor, the wind wheel rotates to make the closed cavity in a negative pressure state, sucking external air into the closed cavity. This structural design realizes the air flow in the closed cavity and achieves the heat dissipation effect of the internal cavity components.

[0010] Preferably, the air outlet group further includes an A air outlet; drainage grooves are correspondingly arranged on the side walls of the wind wheel cover and the base, and the two drainage grooves form the A air outlet after being covered. This structural design can realize the efficient heat dissipation of the main heat dissipation components of the whole machine.

[0011] Preferably, the air inlet cover is fixedly connected with the base through a fastener passing through the wind wheel cover, and an air inlet is formed on the side wall of the air inlet cover far away from the A air outlet. This structural design strengthens the connection firmness between the air induction component, the air inlet cover and the base.

[0012] The present invention also provides a micro steam oven, which includes an oven main body, a stirring motor, a magnetron, an exhaust hood covering above the magnetron, an upper cover plate arranged at the top end of the oven main body, and an upper heat insulation plate arranged between the upper cover plate and the baking cavity in the oven main body.

[0013] Preferably, the micro steam oven further includes the above-mentioned air-cooled system integration module, wherein the base, the magnetron, the exhaust hood and the stirring motor are respectively fixedly connected to the upper heat insulation plate; the exhaust hood is communicated with the A air outlet, and the stirring motor is located at the B air outlet. This structural design realizes the separate heat dissipation of the magnetron and the stirring motor and effectively improves the heat dissipation effect.

[0014] The beneficial effects of the present invention are as follows: compared with the existing micro steam oven, it has the following advantages:

[0015] 1. The air duct fairing and the air guiding component are respectively covered on the notch end of the base to form a closed cavity, and the variable frequency board and the power supply board are arranged in the closed cavity. Among them, the air inlet hood is covered on the air guiding component, and an air outlet group is arranged on the same side wall of the closed cavity. Under the suction of the air guiding component, after the outside air enters the closed cavity through the air inlet hood, the heat generated by the variable frequency board and the power supply board in it is respectively dissipated through the air outlet group. The air inlet hood, the closed cavity and the air outlet group constitute the structure of a diversion air duct, and compared with the open micro-steamer oven, it can efficiently dissipate heat from the main heat dissipation components such as the variable frequency board and the power supply board, solve the problem of poor heat dissipation effect of the main heat dissipation components in the existing micro-steam oven, and extend its service life.

[0016] 2. On the inner wall of the air duct fairing, a straight guide plate, a first folded guide plate and a second folded guide plate are successively arranged along the direction of air flow in the closed cavity. Among them, the straight guide plate is arranged perpendicular to the air flow direction in the closed cavity and faces the B air outlet, and the variable frequency board is clamped at the B air outlet; the first folded guide plate is arranged along the air flow direction in the closed cavity, and its bending direction faces the C air outlet, and the power supply board is located at the C air outlet. The straight guide plate and the first folded guide plate and the air duct fairing constitute the structure of a multi-channel air duct, and the main heat dissipation components are placed at the corresponding air outlets, which can effectively dissipate heat for different positions and directions of different components, solve the defect that the heat dissipation effect of multiple heat dissipation devices in the existing open micro-steamer oven cannot reach a good level due to the structural limitation of the heat dissipation installation position, and through the adoption of this multi-channel air duct structure design, the main heat dissipation components can be reasonably arranged, and the design of the heat dissipation structure of the micro-steamer oven can be optimized.

[0017] 3. On the side wall of the closed cavity far from the air outlet group, a wiring port for connecting the variable frequency board and the power supply board is provided, and the second folded guide plate is arranged along the air flow direction in the closed cavity, and its bending direction is away from the wiring port. Through the setting of the second folded guide plate, the flowing air in the closed cavity is reduced from being dissipated through the wiring port, making the air outlet side of the closed cavity consistent, facilitating the reasonable design of the whole micro-steamer oven and simplifying its structural design. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an exploded schematic view of the air-cooling system integration module of the present invention;

[0019] Figure 2 is a three-dimensional structural schematic view of the air-cooling system integration module of the present invention;

[0020] Figure 3 Partial cross-sectional view of the air-cooling system integration module according to the present invention;

[0021] Figure 4 Partial exploded view of the air-cooling system integration module according to the present invention;

[0022] Figure 5 Schematic diagram of the working principle of the air-cooling system of the air-cooling system integration module according to the present invention;

[0023] Figure 6 Schematic diagram of the structure of another perspective of the air-cooling system integration module according to the present invention;

[0024] Figure 7 Partial structural schematic diagram of the micro-steam oven according to the present invention;

[0025] Figure 8 Partial structural schematic diagram of the micro-steam oven (without upper cover plate) according to the present invention;

[0026] Explanation of reference numerals: 10 - air-cooling system integration module, 11 - air-cooling unit, 111 - base, 112 - air duct deflector, 1121 - straight deflector, 1122 - first folded deflector, 1123 - second folded deflector, 113 - air induction component, 1131 - air wheel cover, 1132 - motor bracket, 1133 - air-cooling motor, 1134 - air wheel, 114 - air inlet cover, 1141 - air inlet, 115 - closed cavity, 1151 - air outlet group, 1152 - wiring port, 1153 - B air outlet, 1154 - C air outlet, 1155 - A air outlet, 12 - frequency conversion board, 13 - power supply board, 20 - oven main body, 21 - upper cover plate, 22 - upper heat insulation plate, 30 - stirring motor, 40 - magnetron, 41 - exhaust hood. Detailed implementation manners

[0027] In order to make the invention object, technical solutions and technical effects of the present invention clearer and more understandable, the present invention will be further described below in conjunction with specific implementation manners. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] As is well known, most of the heating components of the micro-steam oven series products are arranged below the baking cavity of the oven. Generally, in order to avoid the control components being as far away as possible from the influence emitted by the heating components, the control components are generally designed at the upper position of the baking cavity of the oven, such as the main heating components like the frequency conversion board, the power supply board, and the magnetron. However, most of the heat dissipation methods of commercially available micro-steam ovens are to directly blow air-cooling on such components through a blower, which can only blow air in one direction and cannot form a good convection, resulting in poor heat dissipation effect on the top components and affecting the use performance of the whole machine components; in addition, the structural layout of the top components will also be restricted by this, and they need to be placed in front of the blower outlet, so they cannot be reasonably arranged, and there are many components placed in front of the blower outlet, which also cannot achieve good heat dissipation and there are certain safety hazards; therefore, based on these two design defects, the present invention makes a technical transformation on the heat dissipation structure form of the control components of the current micro-steam oven series products.

[0029] Referring to Figure 1 , Figure 2 and Figure 3 As shown, an air-cooling system integration module 10 includes an air-cooling unit 11, a frequency conversion board 12 and a power supply board 13 arranged in the air-cooling unit. Preferably, the air-cooling unit 11 includes a trough-shaped base 111, an air duct diversion cover 112 clamped at the notch end of the base, an air guiding component 113 and an air inlet cover 114 covering the air guiding component; the air duct diversion cover 112 and the air guiding component 113 respectively cover the notch end of the base 111 to form a closed cavity 115, and the frequency conversion board 12 and the power supply board 13 are arranged in the closed cavity 115. In this embodiment, the frequency conversion board 12 and the power supply board 13 are arranged in the closed cavity 115, the air inlet cover 114 covers the air guiding component 113, and an air outlet group 1151 is opened on the same side wall of the closed cavity 115. Under the suction action of the air guiding component 113, after the outside air enters the closed cavity 115 through the air inlet cover 114, the heat generated by the frequency conversion board 12 and the power supply board 13 therein is respectively dissipated through the air outlet group 1151. Specifically, the air inlet cover 114, the closed cavity 115 and the air outlet group 1151 constitute the structure of a diversion air duct, which has the characteristic of efficiently dissipating heat from the main heat dissipation components such as the frequency conversion board 12 and the power supply board 13 compared with the open micro-steam oven that directly blows air for heat dissipation, solves the defect of poor heat dissipation effect of the main heat dissipation components in the existing micro-steam oven, and further plays a role in reducing the faults during the use of the micro-steam oven, thereby prolonging the service life of the micro-steam oven.

[0030] Furthermore, the air outlet group 1151 includes a B air outlet 1153 and a C air outlet 1154. In this embodiment, corresponding notches are provided on the side walls of the air duct guide cover 112 and the base 111, and the two corresponding notches are covered to form the B air outlet 1153 and the C air outlet 1154, which facilitates the alignment and connection between the base 111 and the air duct guide cover 112 and the convenience of the specific installation process. Specifically, the frequency conversion board 12 is snapped onto the base 111 and is located at the B air outlet 1153; the power board 13 is snapped onto the base 111 and is located at the C air outlet 1154. This design preliminarily achieves the purpose of separating and dissipating the heat of the frequency conversion board 12 and the power board 13 from a structural point of view.

[0031] Reference Figure 4 and Figure 5 As shown, the inner wall of the air duct guide cover 112 is provided with a straight guide plate 1121, a first fold line guide plate 1122 and a second fold line guide plate 1123 in sequence along the direction of air flow in the closed cavity 115; the straight guide plate 1121 is arranged perpendicular to the air flow direction in the closed cavity 115, and it faces the B air outlet 1153; the first fold line guide plate 1122 is arranged along the air flow direction in the closed cavity 115, and its bending direction faces the C air outlet 1154. Specifically, the straight guide plate 1121 and the first folded guide plate 1122 form a multi-channel air duct structure with the air duct guide cover 112, and the main heat dissipation components such as the frequency conversion board 12 and the power board 13 are placed at the corresponding air outlets, which can effectively dissipate heat in different positions and directions of different heat dissipation components, thereby solving the defect that multiple heat dissipation devices of the existing open microwave ovens that directly use fans cannot achieve good heat dissipation effects due to the structural limitations of the heat dissipation installation positions. In addition, by adopting the multi-channel air duct structure design to meet the heat dissipation requirements, it can further play a role in rationally arranging the placement positions of the main heat dissipation components to meet the installation requirements of various microwave oven products, thereby optimizing the design of the heat dissipation structure of the microwave oven.

[0032] See also Figure 4 and Figure 6As shown, for the convenience of wiring and installation of the frequency conversion board 12 and the power supply board 13, in this embodiment, a wiring port for facilitating the wiring of the frequency conversion board 12 and the power supply board 13 is provided on the side wall of the closed cavity 115 on the side far from the air outlet group 1151. In this embodiment, in order to reduce the emission of the flowing air in the closed cavity 115 from the wiring port 1152, the second broken-line deflector 1123 is arranged along the air flow direction in the closed cavity 115, and its bending direction is away from the wiring port 1152. This structural design makes the air outlet end of the closed cavity 115 consistent, avoiding the influence of the hot air flowing in the closed cavity 115 from being emitted from the wiring port 1152 to other components of the micro-steaming oven, and can also facilitate the reasonable design of the overall structure and optimize the overall structure.

[0033] Referring to Figure 1 and Figure 3 As shown, the air guiding assembly 113 includes a wind wheel cover 1131 fixedly arranged at the notch end of the base 111, a motor bracket 1132 arranged on the outer side surface of the wind wheel cover, an air-cooled motor 1133 arranged on the motor bracket, and a wind wheel 1134 arranged on the output shaft of the air-cooled motor. In this embodiment, the wind wheel 1134 is located in the closed cavity 115. A through hole is provided on the wind wheel cover 1131, and the output shaft of the air-cooled motor 1133 passes through the through hole to be connected with the wind wheel 1134. Driven by the air-cooled motor 1133, the wind wheel 1134 rotates to make the closed cavity 115 in a negative pressure state, sucking the outside air into the closed cavity 115, so that the air in the closed cavity 115 is in a flowing state.

[0034] Referring to Figure 2 As shown, the air outlet group 1151 further includes an A air outlet 1155; drainage troughs are respectively provided on the side walls of the wind wheel cover 1131 and the base 111, and the two drainage troughs are covered to form the A air outlet 1155, realizing efficient heat dissipation of the main heat dissipation components of the whole machine. The main function to be achieved by its main design is that since the A air outlet 1155 is at the position closest to the wind wheel 1134, the air flow rate at its location is larger than that of other air outlets. When selecting the installation position of the actual heat dissipation components, the heat dissipation components with higher heat dissipation requirements can be arranged at the A air outlet 1155, such as the main heat dissipation components such as the magnetron.

[0035] Referring to Figure 3 As shown, the air inlet cover 114 is fixedly connected to the base 111 through a fastener passing through the wind wheel cover 1131, and an air inlet 1141 is provided on the side wall of the air inlet cover 114 on the side far from the A air outlet 1155. This structural design strengthens the connection firmness between the air guiding assembly 113 and the air inlet cover 114 and the base 111.

[0036] Referring to Figure 7 and Figure 8 As shown, the present invention also provides a micro steam oven, which includes an oven main body 20, a stirring motor 30, a magnetron 40, an exhaust hood 41 covering the magnetron, an upper cover plate 21 provided at the top end of the oven main body 20, and an upper heat insulation plate 22 provided between the upper cover plate and the baking cavity in the oven main body 20. Specifically, the air inlet hood 114 is installed on the upper cover plate 21, and a filter screen can be installed at its air inlet end to prevent pollutants in the external air from entering the closed cavity 115 and affecting the use of components.

[0037] Furthermore, the micro steam oven further includes the air-cooling system integration module 10; wherein, the base 111, the magnetron 40, the exhaust hood 41 and the stirring motor 30 are respectively fixed to the upper heat insulation plate 22. Specifically, the exhaust hood 41 is communicated with the A air outlet 1155, and the magnetron 40 is provided in the exhaust hood 41. Since the A air outlet 1155 is at the position closest to the air wheel 1134 and the air flow rate at its location is larger than that of other air outlets, it can play an efficient heat dissipation role for the magnetron 40. In addition, the stirring motor 30 is located at the B air outlet 1153, and the flowing air blown out from the B air outlet 1153 can further play a role in dissipating heat for the stirring motor 30.

[0038] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, its architecture form can be flexibly changed, and a series of products can be derived. Just making several simple deductions or replacements should be regarded as belonging to the patent protection scope determined by the claims submitted for the present invention.

Claims

1. An air-cooled system integration module, comprising an air-cooled unit, a variable-frequency board and a power board disposed within the air-cooled unit; It is characterized in that: The air-cooled unit includes a trough-shaped base, an air duct deflector cover snapped onto the notch end of the base, an air induction assembly, and an air inlet cover covering the air induction assembly; the air duct deflector cover and the air induction assembly respectively cover the notch end of the base to form a closed cavity, and the variable-frequency board and the power board are disposed within the closed cavity; an air outlet group is provided on the same side wall of the closed cavity. Under the suction of the air induction assembly, after the outside air enters the closed cavity through the air inlet cover, the heat generated by the variable-frequency board and the power board therein is dissipated through the air outlet group respectively; the air outlet group includes a B air outlet and a C air outlet; corresponding notches are provided on the side walls of the air duct deflector cover and the base, and the two correspondingly provided notches form the B air outlet and the C air outlet after being covered; the variable-frequency board is snapped onto the base and is located at the B air outlet; the power board is snapped onto the base and is located at the C air outlet; a straight deflector, a first folded deflector and a second folded deflector are sequentially provided on the inner wall of the air duct deflector cover along the direction of air flow within the closed cavity; the straight deflector is perpendicular to the direction of air flow within the closed cavity and faces the B air outlet; the first folded deflector is arranged along the direction of air flow within the closed cavity and its bending direction faces the C air outlet; a wiring port for facilitating the wiring of the variable-frequency board and the power board is provided on the side wall of the closed cavity away from the air outlet group; the second folded deflector is arranged along the direction of air flow within the closed cavity and its bending direction is away from the wiring port; the air induction assembly includes a wind wheel cover fixedly provided at the notch end of the base, a motor bracket provided on the outer side surface of the wind wheel cover, an air-cooled motor provided on the motor bracket, and a wind wheel provided on the output shaft of the air-cooled motor; the wind wheel is located within the closed cavity, a through hole is provided on the wind wheel cover, and the output shaft of the air-cooled motor passes through the through hole to be connected to the wind wheel. Driven by the air-cooled motor, the wind wheel rotates to make the closed cavity in a negative pressure state, sucking the outside air into the closed cavity.

2. The air-cooled system integration module according to claim 1, It is characterized in that: The air outlet group further includes an A air outlet; corresponding drainage troughs are provided on the side walls of the wind wheel cover and the base, and the two drainage troughs form the A air outlet after being covered.

3. The air-cooled system integration module according to claim 2, It is characterized in that: The air inlet cover is fixedly connected to the base through a fastener passing through the wind wheel cover, and an air inlet is provided on the side wall of the air inlet cover away from the A air outlet.

4. A micro steam oven, comprising an oven main body, a stirring motor, a magnetron, an exhaust hood covering above the magnetron, an upper cover plate provided at the top end of the oven main body, and an upper heat insulation plate provided between the upper cover plate and the baking cavity within the oven main body; It is characterized in that: It further includes an air-cooling system integration module as described in claim 2 or 3, wherein the base, the magnetron, the exhaust hood and the stirring motor are respectively fixedly connected to the upper heat insulation plate; the exhaust hood is communicated with the A air outlet, and the stirring motor is located at the B air outlet.

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