CN104633726A - Drawer-type microwave oven - Google Patents

Abstract

The invention discloses a drawer type microwave oven, comprising: an outer cover; a cavity part, the cavity part is embedded in the outer cover and has an open front side, the cavity part includes a cavity front plate, the cavity part The upper part of the front plate is formed with an air outlet, and the lower part is formed with an air inlet; a microwave generating device; a wind driving component; and a cooling air duct is formed in the space between the outer cover and the cavity part embedded in the outer cover . According to the drawer-type microwave oven of the present invention, through the design of the cooling air passage between the cavity and the outer cover, the temperature rise of the components in the drawer-type microwave oven is reduced, thereby improving the temperature of each component in the drawer-type microwave oven. service life.

Description

drawer microwave oven

technical field

The present invention relates to the technical field of household appliances, in particular to a drawer-type microwave oven.

Background technique

In the existing drawer-type microwave ovens, due to the special structure of the product, the air inlet and outlet air cannot be clearly distinguished. In the existing air duct design, the design of the cold air duct and the hot air duct is relatively chaotic, which cannot well solve the problem of improving the efficiency of cooling with cold air. In other air duct designs, there is a problem of less cold air entering.

In the existing design, although the cold air inlet and the hot air outlet of the drawer microwave oven are not in the same position, but because they are located on the same panel, it is easy to cause the blown hot air to be immediately sucked into the microwave oven by the cold air outlet , thus affecting the normal circulation of the cold air system and affecting the cooling efficiency of the incoming air. In addition, the air intake at the air inlet of the cold air is not sufficient, so that the cold air cannot be well utilized for cooling to protect the microwave generator. This easily leads to a decrease in the service life of the microwave generator.

In addition, due to defects in the cold air circuit design of the existing drawer-type microwave ovens, the cooling fan can only cool a single high-heating component or a few high-heating components, which cannot meet the overall cooling air circulation requirements of the entire drawer-type microwave oven.

Contents of the invention

The present invention aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent.

Therefore, the present invention needs to provide a drawer-type microwave oven, and the cooling efficiency of the cold air can be improved through the improved air duct design of the drawer-type microwave oven.

In addition, the present invention also needs to provide a drawer-type microwave oven, through the improved air duct design of the drawer-type microwave oven, the service life of electronic components in the drawer-type microwave oven can be improved.

In view of this, according to an embodiment of the present invention, in order to solve at least one of the above problems, a drawer type microwave oven is provided. The drawer-type microwave oven may include: an outer cover, the front side of the outer cover is open; a cavity part, the cavity part is embedded in the outer cover and the front side is open, and the cavity part includes a cavity front plate, so An air outlet is formed on the upper part of the front plate of the cavity, and an air inlet is formed on the lower part thereof; a microwave generating device, at least a part of the microwave generating device is accommodated in the space between the outer cover and the cavity part; the wind drives a component, the wind driving component is disposed adjacent to the microwave generating device and is used to drive air to move toward the at least a portion of the microwave generating device; and the housing and the cavity embedded in the housing The space between the bodies is configured with cooling air ducts.

The cooling air passage includes: a bottom air passage formed by the space between the bottom of the housing and the opposite bottom of the cavity part; a top air passage formed by the top air passage The space formed between the top of the outer cover and the top of the opposite cavity part, wherein the air is introduced into the bottom air duct through the air inlet and is driven by the wind driving part to cool the microwave generating device. The at least one part is then connected to the top air duct and discharged through the air outlet.

According to the drawer-type microwave oven of the embodiment of the present invention, by setting the cooling air duct between the cavity and the outer cover, the cooling efficiency of the cooling air duct is improved, and the temperature rise of each component during the use of the drawer-type microwave oven is reduced, thereby The service life of each component in the drawer microwave oven is improved.

According to an embodiment of the present invention, the drawer type microwave oven includes: an electronic control part, and the electronic control part is arranged in the space between the cavity part and the outer cover.

According to an embodiment of the present invention, the cooling air channel further includes: a rear air channel, the rear air channel passes through the cavity rear plate of the cavity part and the outer cover opposite to the cavity rear plate. The rear panel of the outer cover is separated; wherein the microwave generating device and the wind driving component are arranged in the rear air duct, and the rear air duct communicates with the bottom air duct.

According to an embodiment of the present invention, the rear air duct communicates with the bottom air duct through a first opening formed in the lower part of the rear panel of the cavity; and the electronic control component includes a PCB board, and the PCB The board is arranged in the rear air duct and adjacent to the first opening.

According to one embodiment of the present invention, the drawer-type microwave oven further includes: a vertical partition board, the vertical partition board separates the rear air channel, and the wind driving part is arranged on the vertical partition board. The upper part of the partition to drive the air towards the microwave generating device.

According to an embodiment of the present invention, a side air channel is formed on the side of the cavity part located in the wind outlet direction of the wind driving part, and the side air channel passes through the air channel formed on the rear plate of the cavity. The second opening communicates with the rear air duct, wherein the side air duct is isolated from the bottom air duct.

According to an embodiment of the present invention, the rear air duct communicates with the top air duct through a third opening formed on the cavity ceiling of the cavity, wherein the third opening is located The vertical partition plate separates and is located on the part of the wind driving component in the wind outlet direction.

According to an embodiment of the present invention, the drawer-type microwave oven further includes: an air guide cover, and the air guide cover is configured to direct the air driven by the wind driving component at least towards the second opening and the first opening respectively. Three openings guide.

According to an embodiment of the present invention, the cooling air duct further includes: a steam air duct configured to connect the interior of the cavity part with the rear air duct and the top air duct respectively .

According to an embodiment of the present invention, the steam air channel communicates with the rear air channel through a fourth opening, and the fourth opening is opposite to the wind guide cover and formed behind the cavity. Formed by multiple open holes on the plate.

According to an embodiment of the present invention, a fifth opening is further formed on the air guide cover opposite to the fourth opening.

According to an embodiment of the present invention, an air deflector is formed at the air inlet, and the air deflector is located in the bottom air duct and is inclined relative to the front plate of the cavity, wherein the lower end of the air deflector is in contact with The cavity is connected to the front plate.

According to another aspect of the present invention, there is provided a drawer-type microwave oven, comprising: an outer cover, the front side of which is open and includes an outer cover rear plate, an outer cover left plate and an outer cover right plate, an outer cover top plate and an outer cover bottom plate; The cavity part is embedded in the outer cover and the front side is open, the cavity part includes a cavity front plate, a cavity rear plate, a cavity left plate and a cavity right plate, a cavity top plate and a cavity bottom plate, The front panel of the cavity is connected to the front opening of the outer cover and separated by a drawer inserted into the cavity, an air outlet is formed on the upper cavity front panel, and an air outlet is formed on the lower one. An air inlet is formed on the front plate of the cavity; a cooling air duct communicating with the air inlet and the air outlet is formed between the cavity and the outer cover. The cooling air duct may include: a bottom air duct between the bottom plate of the cavity and the bottom plate of the outer cover, a top air duct between the top plate of the cavity and the top plate of the outer cover, the right plate of the cavity and the outer cover The side air channel between the right panels and the rear air channel between the cavity rear panel and the outer cover rear panel, wherein the air is introduced into the bottom air channel through the air inlet, and the bottom air channel is connected to the bottom air channel. The rear air duct communicates with and is isolated from the lateral air duct, the lateral air duct communicates with the top air duct, and the rear air duct communicates with the top air duct so that the The air is connected to the top air duct and discharged through the air outlet; the microwave generating device, at least a part of the microwave generating device is arranged in the rear air duct; the fan, the fan is arranged in the rear air duct, and to drive the air towards the microwave generating device.

According to the drawer-type microwave oven of the embodiment of the present invention, by setting the cooling air duct between the cavity and the outer cover, the cooling efficiency of the cooling air duct is improved, and the temperature rise of each component during the use of the drawer-type microwave oven is reduced to meet the The temperature rise requirements of multiple high-heating components in the drawer-type microwave oven are satisfied, thereby improving the service life of each component in the drawer-type microwave oven.

According to an embodiment of the present invention, the drawer-type microwave oven further includes: a vertical partition, the vertical partition separates the rear air passage, and the fan is arranged on the vertical partition above and adjacent to the microwave generating means to drive air towards the microwave generating means.

According to an embodiment of the present invention, the drawer-type microwave oven further includes: an air guide cover connected to the microwave generating device and configured to direct the air driven by the fan at least towards the sides respectively. Towards the air duct and the top air duct.

According to an embodiment of the present invention, the cooling air duct further includes: a steam air duct configured to connect the interior of the cavity part with the rear air duct and the top air duct respectively .

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

FIG. 1 is a schematic diagram of a three-dimensional structure of a drawer-type microwave oven according to an embodiment of the present invention;

Fig. 2 is another perspective view of the drawer microwave oven according to an embodiment of the present invention, wherein the drawer and the door are removed;

Fig. 3 is a schematic diagram of a partially sectioned three-dimensional structure of a drawer-type microwave oven according to an embodiment of the present invention, and the air is shown communicating from the bottom channel to the rear channel;

Fig. 4 is a schematic diagram of a three-dimensional structure of a drawer-type microwave oven according to an embodiment of the present invention, wherein the drawer is pulled open and air enters from the bottom channel;

Fig. 5 is a schematic diagram of a three-dimensional structure of a drawer-type microwave oven according to an embodiment of the present invention, which shows air flowing from the rear channel to the right channel and then to the top channel;

Fig. 6 is a schematic diagram of a three-dimensional structure of a drawer-type microwave oven according to an embodiment of the present invention, in which air flows from the rear channel to the top channel;

Fig. 7 is a perspective view of a drawer-type microwave oven according to an embodiment of the present invention, which shows air flowing from the inside of the cavity to the top channel.

Reference signs:

100 drawer microwave oven,

10 outer cover, 11 front side opening, 12 outer cover rear plate, 13 outer cover left plate, 14 outer cover top plate, 15 outer cover bottom plate,

20 cavity body, 21 cavity front plate, 211 air outlet, 212 air inlet, 213 air deflector,

22 cavity rear plate, 221 first opening, 222 second opening, 223 fourth opening,

23 cavity top plate, 231 third opening,

24-cavity left plate, 25-cavity right plate, 26-cavity bottom plate,

30 microwave generators,

40 wind drive parts,

51 bottom air duct, 52 top air duct, 53 side air duct, 54 rear air duct, 55 steam air duct,

60 doors, 61 drawers

71 micro switch, 72PCB board, 73 transformer, 74 capacitor,

80 vertical dividers,

90 wind guide cover, 91 fifth openings.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

A drawer-type microwave oven according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings, wherein FIG. 1 is a schematic perspective view of a drawer-type microwave oven according to an embodiment of the present invention. Fig. 2 is another perspective view of the drawer microwave oven according to an embodiment of the present invention, wherein the drawer is removed.

As shown in FIG. 1 , a drawer-type microwave oven 100 according to an aspect of an embodiment of the present invention may include: an outer cover 10, a cavity portion 20, a microwave generating device 30 (as shown in FIG. 4 ), a wind driving part 40 (as shown in FIG. 4) and cooling ducts (not shown). According to an embodiment of the present invention, the wind driving component 40 may be a fan.

It should be noted that, in the following description of the drawer-type microwave oven 100, the air duct at a specific position will often be referred to, where the air duct refers to a passage structure that can effectively conduct air, and the passage structure can pass through the wall of the microwave oven. structure, and may also be defined by individual pathways. In the following description, it is only to describe the air passage structure of the drawer microwave oven 100 according to the present invention, not to limit the air passage of the present invention to the specific gas passage structure shown in the accompanying drawings, as long as it can realize the present invention The air duct structures defined in the claims of the invention all fall within the protection scope of the present invention.

According to an embodiment of the present invention, the front side of the housing 10 may be provided with a front side opening 11 . The cavity part is embedded in the housing 10 and has an open front side. The cavity part 20 may include a cavity front plate 21 . The front panel 21 of the cavity is connected to the front opening 11 of the housing 10 , and the drawer 61 is drawably arranged in the cavity 20 along the horizontal direction and connected to the door 60 , as shown in FIGS. 1 and 2 . The door body 60 is used to close the front opening of the cavity portion 20 during cooking by the microwave oven 100 . In FIG. 2 , the drawer part 61 and the door body 60 are removed to show the structure of the cavity part 20 more clearly. An air outlet 211 is provided on the upper part of the front panel 21 of the cavity, and an air inlet 212 is provided on the lower part. FIG. 3 is a schematic perspective view of a partially sectioned drawer-type microwave oven 100 according to an embodiment of the present invention, and the air is shown communicating from the bottom channel to the rear channel.

As shown in FIG. 4 , at least a part of the microwave generating device 30 may be accommodated in a space formed between the housing 10 and the cavity portion 20 . The wind driving component 40 is disposed adjacent to the microwave generating device 30 and is used to drive air to move toward at least a part of the microwave generating device 30 , so as to achieve the purpose of cooling at least a part of the microwave generating device 30 , thereby improving cooling efficiency.

According to an embodiment of the present invention, the space between the outer cover 10 and the cavity part 20 embedded in the outer cover 10 can be configured with a cooling air channel including a bottom air channel 51 and a top air channel 52, as shown in FIG. 4 . Specifically, the bottom air channel 51 is formed by the space between the bottom of the housing 10 and the bottom of the opposite cavity part 20 . The top air duct 52 is formed by the space between the top of the housing 10 and the top of the opposite cavity portion 20, wherein the air is introduced into the bottom air duct 51 through the air inlet 212 and cooled by the driving of the wind driving part 40 to the microwave generating device 30 At least a part of it is then connected to the top air duct 52 and discharged through the air outlet 211, as shown in FIG. 4 .

According to the drawer-type microwave oven 100 of the embodiment of the present invention, the cooling efficiency of the cooling air passage is improved by setting the cooling air passage between the cavity part and the outer cover 10, and the temperature of each component during the use of the drawer-type microwave oven 100 is reduced. 1, meeting the temperature rise industrial requirements of multiple high-heating components in the drawer microwave oven 100, thereby improving the service life of each component in the drawer microwave oven 100.

As shown in FIG. 2 , according to an embodiment of the present invention, the drawer microwave oven 100 further includes electronic control components. Specifically, electronic control components may be disposed in a space between the cavity portion and the housing 10 . In other words, the electronic control components are disposed in the cooling air passage between the cavity portion 20 and the outer cover 10 , thereby dissipating heat from the electronic control components. The electronic control component may include a PCB board 72, a micro switch 71, a transformer 73, a capacitor 74, etc., but it should be noted that the electronic control component of the present invention is not limited thereto, and it may be any electronic control component used to control a microwave oven. .

According to an embodiment of the present invention, as shown in FIG. 4 , the cooling air duct further includes a rear air duct 54 . Specifically, the rear air passage 54 is separated by the cavity rear plate 22 of the cavity portion and the cover rear plate 12 of the cover 10 opposite to the cavity rear plate 22 , as shown in FIGS. 3 and 4 . Wherein, the microwave generating device 30 and the wind driving component 40 are arranged in the rear air duct 54 , and the rear air duct 54 communicates with the bottom air duct 51 . Thus, the wind driving component 40 can suck the air entering the bottom air duct 51 into the rear air duct 54 , and then blow it to the microwave generating device 30 by the wind driving component 40 , so as to cool the microwave generating device 30 .

As shown in FIGS. 3 and 4 , according to an embodiment of the present invention, the rear air duct 54 communicates with the bottom air duct 51 through the first opening 221 formed at the bottom of the cavity rear panel 22 . In other words, the rear air passage 54 communicates with the bottom air passage 51 through the first opening 221 , and the air entering the bottom air passage 51 enters the rear air passage 54 through the first opening 221 . The electronic control components may also include a PCB board 72 . The PCB board 72 is disposed in the rear air duct 54 and adjacent to the first opening 221 . Thus, the air entering the rear air passage 54 from the bottom air passage 51 can firstly dissipate heat from the PCB board 72 .

As shown in FIG. 3 , according to an embodiment of the present invention, the drawer microwave oven further includes: a vertical partition 80 . The vertical partition plate 80 separates the rear air channel 54, and the rear air channel 54 is divided into an air outlet direction (such as shown in the right direction in Figure 5) and an air intake direction (such as shown in the left direction in Figure 5). ), the air enters the rear air passage 54 from the side of the air inlet direction through the first opening 221 , and is sucked into the side of the air outlet direction by the wind driving component 40 . And the wind driving part 40 is arranged on the top of the vertical partition plate 80 facing the microwave generator 30, so as to drive most of the air towards the microwave generator 30, so as to achieve the effect of cooling the microwave generator 30, and the other part Air is blown out from below the magnetron to cool the electronic control components installed in the rear air passage, such as transformer 73, capacitor 74 and the like.

As shown in FIG. 2 , according to an embodiment of the present invention, a side air duct 53 is formed on one side of the cavity portion 20 located in the wind outlet direction of the wind driving component 40 . The lateral air passage 53 communicates with the rear air passage 54 through the second opening 222 formed on the rear panel 22 of the cavity. As shown in FIG. 5 , the lateral air duct 53 is located on the right side of the drawer-type microwave oven 100 and is isolated from the bottom air duct by the right plate 25 of the cavity, as shown in FIGS. 5 and 6 . In other words, the rear panel 22 of the cavity isolates the lateral air duct 54 from the bottom air duct 51 , and the air flow in the bottom air duct 51 can only enter the rear air duct 54 through the first opening 221 . The rear air channel 54 communicates with the lateral air channel 53 on one side of the air outlet direction through the second opening 222, and part of the air entering the side of the air outlet direction is driven by the wind driving part 40 to pass through the second opening. The portion 222 enters into the lateral air duct 53 .

As shown in Figure 2, according to an embodiment of the present invention, the rear air channel 54 communicates with the top air channel 52 through the third opening 231 formed on the cavity ceiling 23 of the cavity, wherein the third opening 231 It is located on the part that is separated by the vertical partition plate 80 and is on the side of the air outlet direction of the wind driving part 40 . In other words, the rear air passage 54 communicates with the top air passage 52 through the third opening 231 , and the third opening 231 is disposed on one side of the rear air passage 54 in the air outlet direction. Part of the air that enters into one side of the air outlet direction is driven by the wind driving component 40 and enters the top air duct 52 through the third opening 231, thereby dissipating heat from the electronic control components arranged in the top air duct 52. .

As shown in FIGS. 5 and 6 , according to an embodiment of the present invention, the drawer microwave oven 100 may further include an air guide cover 90 . Specifically, the wind guide cover 90 is configured to guide the air driven by the wind driving part 40 at least toward the second opening part 222 and the third opening part 231 respectively. In other words, the wind deflector 90 guides at least part of the air to the second opening 222 and enters the side air duct 53 , and guides another part of the air to the third opening 231 and enters the top air duct 52 .

According to an embodiment of the present invention, as shown in FIGS. 5 and 6 , the cooling air duct further includes a steam air duct 55 . Specifically, the steam air duct 55 is configured to connect the interior of the cavity part with the rear air duct 54 and the top air duct 52 respectively. Driven by the wind driving part 40, the air enters the cavity portion 20 through the steam air duct 55, and the gas in the cavity portion 20, such as the steam generated when the drawer microwave oven 100 heats food, can be transferred from the steam air duct 55. The air is discharged into the top air duct 52 and discharged from a plurality of air outlets 211 connected to the top air duct 52 .

As shown in FIG. 3 , according to an embodiment of the present invention, the steam air duct 55 communicates with the rear air duct 54 through the fourth opening 223 , and the fourth opening 223 is composed of a plurality of opening holes opposite to the air guide cover 90 formed. Driven by the wind driving component 40 , the air enters the steam duct 55 through the fourth opening 223 to take away the water vapor generated when the drawer microwave oven 100 is in operation, so as to achieve the purpose of cooling.

As shown in FIG. 5 , according to an embodiment of the present invention, a fifth opening 91 is further formed on the air guide cover 90 opposite to the fourth opening 223 . The fifth opening 91 on the air guide cover 90 can guide the air to the fourth opening 223 , thus, part of the air can be guided to the fourth opening 223 and enter the steam duct 55 .

As shown in FIG. 4, according to an embodiment of the present invention, an air deflector 213 is formed at the air inlet 212, and the air deflector 213 is located in the bottom air duct 51 and is inclined relative to the front plate 21 of the cavity, wherein the air deflector 213 The lower end of the cavity is connected to the front plate 21 of the cavity. In this way, the inhaled air can be firstly transported towards the top of the bottom air duct 51 , and then transported along the bottom air duct 51 towards the rear air duct 54 , thereby obtaining a good wind transmission effect.

The air flow in the cooling air passage of the drawer microwave oven 100 according to some embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 4 , when the fan 40 of the drawer-type microwave oven 100 is in the working state, the air outside the drawer-type microwave oven 100 enters the bottom air duct 51 through the air inlet 212 under the action of the fan 40 and passes through the first opening 221. After that, it enters one side of the air inlet direction of the rear air channel 54 (such as shown in the left direction in Figure 4), and is blown by the fan 40 to the air outlet direction of the rear air channel 54 (such as the right side in Figure 4 direction shown).

As shown in Figures 5 and 6, in the rear air duct 54, the air flow blown by the fan 40 passes through the microwave generating device 30 and is divided into a first part of air 541 and a second part of air 542, and the first part of air 541 passes through the microwave of the adjacent fan 40. The generator 30 enters the wind guide 90 . Under the guidance of the air guide cover 90, this part of the air is divided into two parts, one part of the air enters into the top air duct 52 through the third opening 231; the other part of the air enters through the fifth opening 91 and the fourth opening 223. to steam duct 55. The air entering the steam air duct 55 enters the top air duct 52 through the steam air duct 55 .

The second part of the air 542 passes through the lower side of the microwave generator 30 on one side of the air outlet direction of the rear air duct 54 (for example, the right direction in FIG. 3 ), and enters the side air duct 53 through the second opening 222 , this part of the air enters the top air duct 52 from the side air duct 53 under the drive of the fan 40 .

Finally, all the air entering the microwave generating device 30 gathers in the top air duct 51 and is discharged from the air outlet 212 driven by the fan 40 . At this time, the air has been synthesized, and the air with higher temperature after heat exchange will not affect the heat dissipation of the electronic control components near the air outlet 212 , which meets the heat dissipation requirement of the drawer microwave oven 100 .

It can be seen from the above that in the drawer-type microwave oven 100 according to the present invention, the cooling air duct is configured as a plurality of air ducts between the air inlet and the air outlet, thereby greatly improving the cooling efficiency of the incoming air and extending the The service life of electronic components.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (16)

1. A drawer microwave oven, characterized in that it comprises: an outer cover, the front side opening of the outer cover; a cavity part, the cavity part is embedded in the outer cover and has an open front side, the cavity part includes a cavity front plate, and the cavity front plate is connected to the front opening of the outer cover, The upper part of the front plate of the cavity is provided with an air outlet, and the lower part of the front plate of the cavity is provided with an air inlet; microwave generating means, at least a part of which is accommodated in the space between the housing and the cavity portion; a wind drive member disposed adjacent to the microwave generating means for driving air towards the at least a portion of the microwave generating means; and The space between the outer cover and the cavity part embedded in the outer cover is configured with a cooling air channel, and the cooling air channel includes: a bottom air channel formed by the space between the bottom of the housing and the opposite bottom of the cavity portion; a top air channel formed by the space between the top of the housing and the opposite top of the cavity part, wherein air is introduced into the bottom air channel through the air inlet and passes through the air The drive of the driving component cools the at least a part of the microwave generating device, and then communicates with the top air duct, and discharges it through the air outlet. 2. The drawer-type microwave oven according to claim 1, further comprising: An electronic control component is disposed in the space between the cavity portion and the housing. 3. The drawer-type microwave oven according to claim 2, wherein the cooling air passage comprises: The rear air channel is formed by separating the cavity rear plate of the cavity part and the outer cover rear plate of the outer cover opposite to the cavity rear plate, wherein The microwave generating device and the wind driving component are arranged in the rear air duct, and the rear air duct communicates with the bottom air duct. 4. The drawer-type microwave oven according to claim 3, wherein the rear air duct communicates with the bottom air duct through a first opening formed in the lower part of the rear panel of the cavity; and The electronic control component includes a PCB board, and the PCB board is arranged in the rear air duct and adjacent to the first opening. 5. The drawer-type microwave oven according to claim 4, further comprising: a vertical partition, the vertical partition separates the rear air channel, and the wind driving component is arranged on the upper part of the vertical partition to drive the air toward the microwave generation Device movement. 6 . The drawer-type microwave oven according to claim 5 , wherein a side air duct is formed on one side of the cavity part located in the air outlet direction of the wind driving part, and the side air duct passes through The second opening formed on the rear panel of the cavity communicates with the rear air passage, wherein the side air passage is isolated from the bottom air passage. 7. The drawer-type microwave oven according to claim 5, wherein the rear air duct communicates with the top air duct through a third opening formed on the cavity top plate of the cavity portion, wherein The third opening portion is located on a portion partitioned by the vertical partition and located in the wind outlet direction of the wind driving member. 8. The drawer-type microwave oven according to claim 7, further comprising: The air guide cover is configured to guide the air driven by the wind driving member toward at least the second opening and the third opening, respectively. 9. The drawer-type microwave oven according to claim 8, wherein the cooling air duct further comprises: The steam air duct is configured to connect the inside of the cavity part with the rear air duct and the top air duct respectively. 10. The drawer-type microwave oven according to claim 9, wherein the steam channel communicates with the rear air channel through a fourth opening, and the fourth opening is opposite to the air guide cover. And formed by a plurality of opening holes formed on the rear plate of the cavity. 11. The drawer-type microwave oven according to claim 10, characterized in that a fifth opening is further formed on the air guide cover opposite to the fourth opening. 12. The drawer-type microwave oven according to claim 1, wherein an air deflector is formed at the air inlet, and the air deflector is located in the bottom passage and is inclined relative to the front plate of the cavity, Wherein the lower end of the wind deflector is connected with the front plate of the cavity. 13. A drawer-type microwave oven, characterized in that it comprises: a housing with an open front side and comprising a housing rear panel, a housing left panel and a housing right panel, a housing top panel and a housing bottom panel; A cavity part, the cavity part is embedded in the outer cover and the front side is open, and the cavity part includes a cavity front plate, a cavity rear plate, a cavity left plate and a cavity right plate, and a cavity top plate and the bottom plate of the cavity, the front plate of the cavity is connected to the front opening of the outer cover and separated by a drawer inserted into the cavity, and an air outlet is formed on the front plate of the cavity at the upper part An air inlet is formed on the front plate of the lower part of the cavity; a cooling air duct communicating with the air inlet and the air outlet is formed between the cavity part and the outer cover, and the cooling air duct includes: The bottom air channel between the bottom plate of the cavity and the bottom plate of the outer cover, the top air channel between the top plate of the cavity and the top plate of the outer cover, the side between the right plate of the cavity and the right plate of the outer cover To the air passage, and the rear air passage between the rear panel of the cavity and the rear panel of the outer cover, wherein Air is introduced into the bottom air duct through the air inlet, the bottom air duct is connected to the rear air duct and is isolated from the side air duct, and the side air duct is connected to the top air duct and the rear air duct communicates with the top air duct so that the air is communicated to the top air duct and discharged through the air outlet; A microwave generating device, at least a part of the microwave generating device is arranged in the rear air duct; A fan, which is arranged in the rear air duct, is used to drive the air to move toward the microwave generating device. 14. The drawer-type microwave oven according to claim 13, further comprising: a vertical partition board, the vertical partition board separates the rear air channel, and the fan is arranged on the vertical partition board and adjacent to the microwave generating device, so that the air Drive to move towards the microwave generating device. 15. The drawer microwave oven according to claim 14, further comprising: An air guide cover, the air guide cover is connected to the microwave generating device, and is configured to guide the air driven by the wind driving component at least towards the side air channel and the top air channel respectively. 16. The drawer-type microwave oven according to claim 15, wherein the cooling air duct further comprises: The steam air duct is configured to connect the inside of the cavity part with the rear air duct and the top air duct respectively.