CN215112777U

CN215112777U - Bottom plate assembly and cooking device

Info

Publication number: CN215112777U
Application number: CN202120446443.9U
Authority: CN
Inventors: 胡广川; 邓雁青; 张世罡
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-12-10
Anticipated expiration: 2031-03-01

Abstract

The utility model belongs to the technical field of cooking utensil, concretely relates to bottom plate subassembly and have cooking device of this bottom plate subassembly. The utility model discloses a bottom plate subassembly includes the bottom plate body, radiator fan and a plurality of electrical components, be equipped with first air intake and first air outlet on the bottom plate body, radiator fan locates that the bottom plate is originally internal, form first inlet channel between radiator fan and first air intake, form first air-out passageway between radiator fan and first air outlet, some electrical components locate in first inlet channel and correspond the setting with first air intake, another part electrical components locate in first inlet channel and/or first air-out passageway. According to the utility model discloses a bottom plate subassembly, the air inlet and/or the air-out through cooling fan can be cooled off to a plurality of electrical part simultaneously effectively to improve cooling fan's radiating effect, guarantee the reliable operation of electrical components in the bottom plate subassembly.

Description

Bottom plate subassembly and cooking device

Technical Field

The utility model belongs to the technical field of cooking utensil, concretely relates to bottom plate subassembly and have cooking device of this bottom plate subassembly.

Background

As is well known, a cooking appliance cooks food by means of a high-temperature environment of a cavity, so that in the working process, it is difficult to avoid the phenomenon that electric devices in the cooking appliance are in failure due to thermal shock of the high-temperature cavity, and moreover, some electric devices, such as a magnetron, a frequency converter, a power panel and the like, have large self-heating values and need to be timely radiated to ensure normal work of the electric devices. In order to solve the related problems, passive heat dissipation technology is adopted in many cooking appliances, for example, heat dissipation holes are added on a shell and a bottom plate, the heat exchange area is increased, or a mode of wrapping a heat insulation material outside a cavity is adopted, so that the influence of high-temperature heat on electric devices is reduced. Of course, some active heat dissipation technologies are adopted, and a single or multiple fans are used to dissipate heat of individual components in a local space through independent heat dissipation air ducts.

However, the structure of the prior art mentioned above increases the structural complexity of the heat dissipation air duct, and it is impossible to simultaneously dissipate heat from a plurality of components by the same motor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving at least and can't carry out radiating problem simultaneously to a plurality of electrical parts through same motor. This object is achieved in the following manner.

The utility model provides a bottom plate assembly, bottom plate assembly includes:

the bottom plate comprises a bottom plate body, wherein a first air inlet and a first air outlet are formed in the bottom plate body;

the heat dissipation fan is arranged in the bottom plate body, a first air inlet channel is formed between the heat dissipation fan and the first air inlet, and a first air outlet channel is formed between the heat dissipation fan and the first air outlet;

and one part of the electrical elements are arranged in the first air inlet channel and are arranged corresponding to the first air inlet, and the other part of the electrical elements are arranged in the first air inlet channel and/or the first air outlet channel.

According to the utility model discloses a bottom plate subassembly, through at this internal cooling fan that sets up of bottom plate, and be equipped with first air intake and first air outlet on the bottom plate body, make and form first inlet air channel between cooling fan and first air intake, make and form first air-out passageway between cooling fan and first air outlet, locate some electrical components in the inlet air channel, locate another part electrical components in first inlet air channel and/or the first air-out passageway, air inlet and/or air-out through cooling fan can dispel the heat simultaneously to a plurality of electrical parts effectively, thereby improve cooling fan's radiating effect, guarantee the electrical components reliable operation in the bottom plate subassembly.

Meanwhile, a part of electrical components are arranged in the air inlet channel and correspond to the first air inlet, and air inlet of the first air inlet can directly act on the part of electrical components, so that the cooling effect is improved, the length design of the first air inlet channel is reduced, and the space utilization rate of the bottom plate body is improved.

In addition, according to the utility model discloses a bottom plate subassembly still can have following additional technical characterstic:

in some embodiments of the present invention, the bottom plate assembly further comprises a water box, the water box and the first air inlet channel are arranged in the inside of the bottom plate body side by side.

In some embodiments of the present invention, the first air inlet is disposed on the bottom surface of the bottom plate body, and the first air outlet is disposed on the side surface of the bottom plate body.

In some embodiments of the present invention, the first air inlet is a mesh structure, or the first air inlet is a structure in which an air inlet grille is provided for the opening.

In some embodiments of the present invention, the electric component is a power strip, and the power strip is disposed in the air intake duct and corresponds to the first air inlet.

The utility model discloses an in some embodiments, another part electrical component locates first inlet air channel with in the first air-out passageway, another part electrical component includes one of transformer and converter and/or filtering board, the transformer or the converter is located in the first air-out passageway, the filtering board is located in the first inlet air channel.

In some embodiments of the invention, the base plate assembly further comprises a steam generator and/or a microwave generator disposed within the base plate body.

The utility model discloses an in some embodiments, still be equipped with the second air intake on the bottom plate body, the second air intake with radiator fan's impeller corresponds the setting, the impeller with form second inlet air channel between the second air intake.

In some embodiments of the present invention, the bottom plate body is an insulator.

The utility model discloses an on the other hand has still provided a cooking device, cooking device includes:

a cooking cavity;

the bottom plate assembly is arranged below the cooking cavity, wherein the bottom plate assembly is any one of the bottom plate assemblies.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. Wherein:

fig. 1 is a schematic view of the entire structure of a cooking apparatus according to the present embodiment;

FIG. 2 is a schematic diagram of the cooking device of FIG. 1 in a disassembled configuration;

FIG. 3 is a schematic diagram of the disassembled structure of the bottom plate assembly in FIG. 2;

FIG. 4 is a schematic view of a further disassembled structure of the bottom plate assembly of FIG. 3;

fig. 5 is a schematic structural diagram of the heat dissipation fan in fig. 3.

The reference numerals in the drawings denote the following:

1: a cooking device;

10: case assembly, 11: a cooking cavity;

20: a door body assembly;

30: floor panel assembly, 31: bottom plate body, 311: base, 3111: bottom plate portion, 3112: side plate portion, 3113: baffle portion, 3114: first air intake, 3115: first air outlet, 3116: fan mount pad, 3117: first air inlet passage, 3118: first air-out passageway, 312: cover plate, 32: cooling fan, 321: motor support, 3211: air inlet end, 3212: air outlet end, 322: a motor, 323: impeller, 33: power supply board, 34: filter plate, 35: frequency converter, 36: steam generator, 37: water pump, 38: power supply line, 39: and a water box.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The utility model provides a cooking device 1, cooking device 1 can be microwave type cooking utensil, also be the cooking utensil who also has microwave function, for example microwave oven, microwave oven all-in-one, microwave steam oven all-in-one etc.. For convenience of description, the cooking apparatus 1 of the present embodiment is described by taking a microwave-steam-oven combo as an example only. Referring to fig. 1 to 4, the cooking apparatus 1 of the present embodiment includes a box assembly 10, a door assembly 20, and a bottom plate assembly 30, a cooking cavity 11 is provided in the box assembly 10, the cooking cavity 11 is used for providing a space for cooking food, the bottom plate assembly 30 is provided below the cooking cavity 11, the bottom plate assembly 30 is used for supporting the entire cooking apparatus 1, and the box assembly 10 can be installed on the bottom plate assembly 30. The door assembly 20 is connected to the cabinet assembly 10 in a manner that the cooking cavity 11 can be opened or closed, and the door assembly 20 may be connected to the cabinet assembly 10 in a rotatable manner or in an insertion manner.

The base plate assembly 30 of the present embodiment includes a base plate body 31, a heat dissipation fan 32, and a plurality of electrical components. Be equipped with first air intake 3114 and first air outlet 3115 on bottom plate body 31, in bottom plate body 31 was located to radiator fan 32, first inlet air duct 3117 was formed between radiator fan 32 and first air intake 3114, first air-out passageway 3118 was formed between radiator fan 32 and first air outlet 3115. Some electrical components are disposed in the first air inlet channel 3117 and are disposed corresponding to the first air inlet 3115, and other electrical components are disposed in the first air inlet channel 3117 and/or the first air outlet channel 3118.

According to the utility model discloses a bottom plate subassembly 30, through set up radiator fan 32 in bottom plate subassembly 31, and be equipped with first air intake 3114 and first air outlet 3115 on bottom plate body 31, make between radiator fan 32 and first air intake 3114 form first inlet channel 3117, make between radiator fan 32 and first air outlet 3115 form first air-out passageway 3118, locate a part electrical components in first inlet channel 3117, locate another part electrical components in first inlet channel 3117 and/or first air-out passageway 3118, air inlet and/or air-out through radiator fan 32 can dispel the heat to a plurality of electrical components simultaneously effectively, thereby improve radiator fan 32's radiating effect, guarantee the electrical components reliable operation in bottom plate subassembly 30.

Simultaneously, locate partly electrical components in first inlet duct 3117 and correspond the setting with first air intake 3114, the air inlet of first air intake 3114 can the direct action on partly electrical components to improve the cooling effect, and reduced first inlet duct 3117's length design, improved the space utilization in the bottom plate body 31.

In addition, in prior art, the power device of cooking device needs to be installed in the insulating box first, and then installs insulating box whole on the complete machine, compares with it, and bottom plate body 31 in this embodiment is the insulating piece, and a plurality of electrical components direct mount can satisfy the power consumption security requirement in the inside of bottom plate body 31 to can cancel the setting of insulating box, with the reduction of complete machine part quantity, and then reduction in production cost and improvement production efficiency. In an example of the present embodiment, the bottom plate body 31 is specifically a plastic piece or a ceramic piece, the plastic piece has a good insulating property, and can meet the requirement of electrical safety, and in addition, the plastic piece also has the characteristics of easy processing and forming, low cost, falling resistance, collision resistance, and the like. The ceramic piece also has good insulating property, and has the advantages of good brightness and wear resistance. It is understood that the bottom plate body 31 is not limited to a plastic or ceramic member, and may be made of an insulating material such as glass or mica.

Referring to fig. 3 and 4, the bottom plate body 31 of the present embodiment includes a base 311 and a cover plate 312, the base 311 includes a bottom plate portion 3111, a side plate portion 3112 and a baffle portion 3113, wherein the side plate portion 3112 is disposed upward along an outer edge of the bottom plate portion 3111, the baffle portion 3113 is disposed upward along a middle position of the bottom plate portion 3111, and the side plate portion 3112 and the baffle portion 3113 are disposed at intervals to form a first air inlet channel 3117 and a first air outlet channel 3118. The cover plate 312 is of an L-shaped structure, and the cover plate 312 covers the first air inlet channel 3117 and the first air outlet channel 3118 and is connected with the base 311 in a matching manner.

Specifically, the first air inlet 3114 is disposed on the bottom plate 3111 and is disposed corresponding to one end of the cover plate 312 with an L-shaped structure, the first air outlet 3115 is disposed on the side plate 3112 and is disposed corresponding to the other end of the cover plate 312 with an L-shaped structure, the bottom plate 3111 is provided with a fan mounting seat 3116 for mounting the heat dissipation fan 32, a first air inlet 3117 is formed between the first air inlet 3114 and the heat dissipation fan 32 on the fan mounting seat 3116, a first air outlet 3118 is formed between the first air outlet 3115 and the heat dissipation fan 32 on the fan mounting seat 3116, and the direction indicated by the black straight arrow in fig. 4 is the flowing direction of the air flow in the first air inlet 3117 and the first air outlet 3118. First air intake 3114 induced drafts from bottom plate portion 3111 for a plurality of electrical components that are in first air inlet 3117 and first air-out passageway 3118 are cooled down, and the hot-blast side plate portion 3112 that forms after cooling down a plurality of electrical components is discharged to can not condense the hot-blast bottom in bottom plate portion 3111, guarantee that bottom plate subassembly 30 and cooking device 1 obtain the best radiating effect.

Specifically, as shown in fig. 4, the first air inlet 3114 of this embodiment is a mesh structure, so as to supply air through a plurality of meshes, and meanwhile, large particles and impurities cannot enter the inside of the bottom plate body 31 due to the excessively large opening of the first air inlet 3114, which may damage electrical components.

In other embodiments of the present application, the first air inlet 3114 is a square or circular opening structure, and an air inlet grille is disposed at the opening structure, so as to prevent large particles from entering the bottom plate body 31 and damaging electrical components while ensuring an air inlet volume.

Specifically, the plurality of electrical components of the present embodiment include a power supply board 33, a filter board 34 and a frequency converter 35, and since the cooking device 1 of the present embodiment also has a microwave function and a steam function, a steam generator 36 and a microwave generator (not shown in the drawings) are also provided in the bottom plate assembly 30 of the present embodiment. The power board 33, the filter board 34, the frequency converter 35, and a magnetron (not shown) in the microwave generator are sequentially disposed in the first air inlet channel 3117 and the first air outlet channel 3118 along the airflow direction, and the electrical components are sequentially arranged from small to large according to the heating power of the electrical components, so as to ensure that the electrical components in the bottom plate assembly 30 achieve the optimal heat dissipation effect.

Specifically, as shown in fig. 3 and fig. 4, the power board 33 and the filter board 34 are sequentially disposed in the first air inlet channel 3117, and the power board 33 is disposed corresponding to the first air inlet 3114, that is, the power board 33 is disposed right above the first air inlet 3114. The cold air entering the first air inlet channel 3117 from the first air inlet 3114 can directly act on the power panel 33, so that the heat dissipation effect of the power panel 33 is improved, the length design of the air inlet channel is reduced, and the space utilization rate of the bottom plate body 31 is improved. The filter plate 34 is arranged behind the power panel 33 along the airflow direction and at the air inlet end of the cooling fan 32, and the filter plate 34 is cooled by the inlet airflow of the cooling fan 32. Meanwhile, a power line 38 is further arranged in the first air inlet channel 3117, the power line 38 is electrically connected with the power panel 33, and the plugging end of the power line 33 can extend out of the bottom plate body 31 and is connected with a power socket, so that power is supplied to the power panel 33, and the normal working process of each power device in the cooking device 1 is ensured.

Referring to fig. 3 and 4, the frequency converter 35 and the magnetron are disposed in the first air outlet channel 3118, and the first air outlet 3115 is disposed on the side plate 3112 and corresponding to the magnetron. The cooling airflow in the first air outlet channel 3118 cools the frequency converter 35 and the magnetron to dissipate heat, and then forms a hot airflow, which is directly discharged outside the bottom plate assembly 30 through the first air outlet 3115. Because the magnetron needs to emit microwaves into the cooking cavity 11, in order to prevent the cover plate 312 from shielding the microwave emission process, the cover plate 312 is not arranged above the magnetron, so that a clearance structure is formed. Along the flowing direction of the air flow in the first air outlet channel 3118, the tail end of the cover plate 312 only extends to the upper side of the frequency converter 35, so as to shield the frequency converter 35.

In other embodiments of the present application, a transformer may also be used in place of the frequency converter 35.

In another embodiment of the present application, if the cooking device 1 does not have a microwave function, the magnetron on the bottom plate portion 3111 is eliminated accordingly. Correspondingly, the first air outlet 3115 may be disposed corresponding to the frequency converter 35, so that the hot air flow formed by the cooling air flow after dissipating heat from the frequency converter 35 is directly discharged to the outside of the bottom plate assembly 30 through the first air outlet 3115.

As shown in fig. 5, the heat dissipation fan 32 of the present embodiment includes a motor support 321, a motor 322, and an impeller 323, wherein the motor support 321 is connected to a fan mounting seat 3116 on the bottom plate portion 3111, the motor 322 is disposed on the motor support 321, the impeller 323 is connected to an output shaft of a motor 3222 and disposed above the motor 322, and the impeller 323 and the motor 322 are disposed on two sides of the motor support 321, respectively. A rotating shaft hole is formed in the center of the motor support 321, and an output shaft of the motor 322 can pass through the rotating shaft hole to be connected with the impeller 323. Mounting holes are further formed in two sides or the periphery of the rotating shaft hole and used for fixing the motor 322 on the motor support 321 through screw connection. The motor support 321 of this embodiment is further provided with an air inlet end 3211 and an air outlet end 3212, the air inlet end 3211 is arranged towards the first air inlet channel 3117, and the air outlet end 3212 is arranged towards the first air outlet channel 3118. Specifically, the heat radiation fan 32 of the present embodiment is a centrifugal fan.

Further, as shown in fig. 3 and 4, the bottom plate assembly 30 of the present embodiment further includes a water box 39, and the water box 39 and the first air intake channel 3117 are arranged in parallel inside the bottom plate body 31. Be equipped with the installation cavity that is used for holding water box 39 in the base 311, water box 39 pegs graft to the installation cavity and set up side by side with first inlet air duct 3117. Because the first air inlet 3114 is arranged corresponding to the power panel 33 in this embodiment, and an air inlet channel for connecting the first air inlet 3114 and the power panel 33 does not need to be arranged above the water box 39, the overall height of the bottom plate assembly 30 can be effectively reduced, so as to further reduce the overall size of the cooking apparatus 1 or correspondingly enlarge the volume of the cooking cavity 11 or the water box 39, improve the heating space of the cooking cavity 11 or the cruising ability of the water box 39, and effectively improve the space utilization rate of the cooking apparatus 1.

Accordingly, the steam generator 36 and the water pump 37 are provided in the soleplate assembly 30 at the same time as the water box 39 is provided in the cooking apparatus 1 having the steam function. The steam generator 36 and the water pump 37 of the present embodiment are both disposed above the water box 39 and communicate with the inside of the water box 39, so that the arrangement of the connection pipe with the water box 39 can be reduced or shortened. The water pump 37 pumps water in the water box 39 into the steam generator 36, and the steam generator 36 is communicated with the cooking chamber 11 through a pipe, so that the generated steam is delivered to the cooking chamber 11 for steam heating of food in the cooking chamber 11.

In other embodiments of the present application, the steam generator 36 and the water pump 37 may also be disposed on the bottom plate portion 3111 between the baffle portion 3113 and the water box 39, thereby effectively reducing the space occupancy above the water box 39, and accordingly, the volume of the water box 39 and the cooking cavity 11 may be further increased.

Further, as shown in fig. 3 to fig. 5, the bottom plate body 31 of the present embodiment is further provided with a second air inlet (not shown in the figure), the second air inlet is disposed corresponding to the impeller 323 of the heat dissipation fan 32, and a second air inlet channel is formed between the impeller 323 and the second air inlet. The second air intake channel is disposed from the bottom plate of the base 311 toward the impeller 323 of the heat dissipation fan 32. The impeller 323 is connected to the output shaft of the motor 322 and disposed above the motor 322, that is, the motor 322 is disposed closer to the second air inlet on the bottom plate 3111 than the impeller 323, and the impeller 323 and the motor 322 are disposed on two sides of the motor support 321, respectively. The central position of the motor support 321 is provided with a plurality of ventilation openings, the plurality of ventilation openings are arranged opposite to the impeller 323, the position of the ventilation opening is a second air inlet end of the heat dissipation fan 32, air flow outside the base 311 can enter the impeller 323 through the second air inlet and the ventilation openings under the action of the impeller 323, so that intake air flow is formed, and a second air inlet channel is formed between the second air inlet and the impeller 323.

Through set up the second air intake on bottom plate portion 3111, the second air intake sets up with radiator fan 32's impeller 323 is relative, forms second inlet air channel between impeller 323 and the second air intake, can further increase radiator fan 32's air inlet volume and air output through the setting of second air intake to further promote the airflow of the cooling air flow in the base 311, and then promote radiator fan 32's cooling radiating effect. On arranging cooling fan 32 in base 311 simultaneously, can improve integrating of each part on base 311, need not additionally to set up the wind channel, reduce base 311's volume, reduce the installation degree of difficulty.

In other embodiments of the present application, the motor bracket 321 is connected to the side plate portion 3111 or the cover plate 312 of the base 311, and the ventilation opening is disposed toward the impeller 323, the impeller 323 is disposed below the motor 322, a second air inlet channel is formed between the impeller 323 and the second air inlet, and air is introduced through the second air inlet of the bottom plate portion 3111, so as to increase the air flow of the heat dissipation fan 32.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A floor assembly, comprising:

2. The base plate assembly of claim 1, further comprising a water box disposed inside the base plate body alongside the first air inlet channel.

3. The bottom plate assembly of claim 1, wherein the first air inlet is disposed at a bottom surface of the bottom plate body, and the first air outlet is disposed at a side surface of the bottom plate body.

4. The floor assembly of claim 1, wherein the first air inlet is a mesh structure or a structure with an air inlet grille at the opening.

5. The bottom plate assembly of claim 1, wherein the portion of the electrical component is a power strip, and the power strip is disposed in the air inlet channel and corresponds to the first air inlet.

6. The bottom plate assembly of claim 1, wherein the other portion of the electrical components is disposed in the first air inlet channel and the first air outlet channel, the other portion of the electrical components includes one of a transformer and a frequency converter and/or a filter plate, the transformer or the frequency converter is disposed in the first air outlet channel, and the filter plate is disposed in the first air inlet channel.

7. The baseplate assembly of claim 1, further comprising a steam generator and/or a microwave generator disposed within the baseplate body.

8. The bottom plate assembly of claim 1, wherein the bottom plate body is further provided with a second air inlet, the second air inlet is arranged corresponding to the impeller of the heat dissipation fan, and a second air inlet channel is formed between the impeller and the second air inlet.

9. The baseplate assembly of claim 1, wherein the baseplate body is an insulator.

10. A cooking device, comprising:

a cooking cavity;

a base plate assembly provided below the cooking cavity, wherein the base plate assembly is according to any one of claims 1 to 9.