CN216924447U - Cooking equipment and heat radiation structure thereof - Google Patents

Abstract

The utility model relates to cooking equipment and a heat dissipation structure thereof. The heat dissipation structure comprises a fan, a box body and an air guide piece. An accommodating cavity is formed in the box body. The accommodating cavity is used for installing a power supply. The accommodating cavity penetrates through two side faces of the box body to form an air inlet and an air outlet respectively. The air guide sets up in air intake department, is formed with the wind-guiding passageway on the air guide, and the wind-guiding passageway can be linked together through air intake and holding chamber, and the wind-guiding passageway sets up towards the fan, and is the wind-guiding mouth towards the opening of fan, and at least some of fan can be along the planar direction projection in the wind-guiding mouth of perpendicular to wind-guiding mouth place. The box is formed with the installation cavity, and heat radiation structure places in the installation cavity, and the air outlet is linked together with the installation cavity. The wind-guiding passageway sets up towards the fan and can guarantee that the air current is by the air intake flow direction steadily and hold the intracavity, dispels the heat to the power, takes away the heat that the power produced and discharges the installation intracavity by the air outlet, guarantees the radiating effect and the life of power.

Description

Cooking equipment and heat radiation structure thereof

Technical Field

The utility model relates to the technical field of household appliances, in particular to cooking equipment and a heat dissipation structure thereof.

Background

Microwave ovens heat food by transmitting microwaves through energization of a magnetron, which requires a high voltage power supply to power it. An iron core type high-voltage transformer is adopted as a high-voltage power supply in the prior art, but the iron core type high-voltage transformer has the defects of heavy weight, high energy consumption, incapability of communicating with a control computer board, incapability of expanding functions and the like; on the contrary, because the variable frequency power supply has the advantages of light weight, energy conservation, wide voltage adaptation, adjustable power and the like, a large part of products are gradually transferring the electronic variable frequency power supply to be used as a high-voltage power supply to supply power for the magnetron.

Because the variable frequency power supply is provided with the switching tube and the high-voltage tube, the two electronic devices can generate a large amount of heat and need to dissipate the heat. The traditional structure is that a power supply box with two sides penetrating through is arranged on the periphery of a variable frequency power supply, and a fan is used for blowing cold air towards the opening of the power supply box. However, the power supply box in the conventional structure is not reasonable enough, and the air blown out by the fan does not have enough air volume to enter the power supply box, so that the heat dissipation effect of the variable frequency power supply is poor, the service life of the variable frequency power supply is influenced, and the service life of the whole machine is further influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a cooking apparatus with higher heat dissipation efficiency and a heat dissipation structure thereof.

A heat dissipation structure of cooking equipment comprises a fan, a box body and an air guide piece, wherein an accommodating cavity is formed in the box body and used for mounting a power supply, and the accommodating cavity penetrates through two side faces of the box body to form an air inlet and an air outlet respectively; the air guide piece is arranged at the air inlet, an air guide channel is formed in the air guide piece, the air guide channel can be communicated with the accommodating cavity through the air inlet, the air guide channel faces the fan, the opening of the fan is an air guide opening, and at least one part of the fan can be projected in the air guide opening along the direction perpendicular to the plane where the air guide opening is located.

In one embodiment, the air guide component includes an air guide cover and an air guide plate, the air guide cover is disposed on one side of the air inlet, the air guide plate is disposed on the other side of the air inlet, the air guide cover and the air guide plate together enclose the air guide channel, and the air guide plate can be projected on the fan surface of the fan along the rotation axis direction of the fan.

Specifically, the air guiding cover can enclose an air guiding groove, an opening of the air guiding groove facing the fan is the air guiding opening, a plane where the air guiding opening is located is intersected with a plane where the air guiding plate is located, the air guiding cover is arranged on one side of the fan at intervals, and a projection of the fan in a direction perpendicular to the plane where the air guiding opening is located in the air guiding opening.

In one embodiment, a cross-sectional area of the air guide channel on a plane parallel to the air guide opening tends to increase from one end of the air guide member away from the fan towards the fan.

In one embodiment, the heat dissipation structure further comprises a mounting rack, the mounting rack is used for being mounted on the inner wall of the box body mounting cavity, the fan is mounted on the mounting rack, and the projection of the mounting rack on the plane where the air guide opening is located is at least partially located in the air guide opening.

In one embodiment, the box body is further provided with an air outlet gap, the air outlet gap can be communicated with the accommodating cavity and the air outlet, and the side surface where the air outlet gap is located is intersected with the side surface where the air outlet is located.

Specifically, the area of the air outlet notch accounts for 1/3-1/5 of the area of the side face where the air outlet notch is located.

In one embodiment, the heat dissipation structure further includes a heat sink, the heat sink is used for being mounted on the power supply, and the heat sink is located on a side opposite to the air outlet notch.

In one embodiment, the box body comprises a buckle and a bendable shell, the buckle is arranged at one end of the shell, a buckle ear is arranged at the other end, far away from the buckle, of the shell, and the shell can be bent to enable the buckle to be clamped on the buckle ear and enclose the accommodating cavity.

Further, the box body still includes the locating part, the locating part sets up the box body has on detaining a lateral wall of ear, the buckle card is established when detaining on the ear, the locating part is located detain the below of ear, and right the buckle is restricted.

A cooking device comprises a power supply, a box body and the heat dissipation structure, wherein the power supply is arranged in the accommodating cavity; the box is formed with the installation cavity, heat radiation structure places the installation cavity is in, the air outlet with the installation cavity is linked together.

In one embodiment, the cooking apparatus further includes a magnetron positioned at one side of the case in a direction of a rotation axis of the fan.

Above-mentioned cooking equipment and heat radiation structure thereof, cooking equipment is when the operation, and the power is installed and is produced a large amount of heats in the holding cavity of box body. The fan operation produces the air current, and the wind-guiding passageway can guarantee towards the fan setting that the air current is by the air intake flow direction steadily to hold the intracavity, dispels the heat to the power, takes away the heat that the power produced and discharges the installation intracavity by the air outlet, guarantees power operation temperature's stability and security. Meanwhile, at least one part of the fan can be projected in the air guide opening along the direction perpendicular to the plane where the air guide opening is located, so that sufficient air flow is guaranteed to enter the air guide channel through the air guide piece, the heat dissipation effect and the service life of the power supply are guaranteed, the service life of the cooking equipment is also guaranteed, and the reasonability and the reliability of the heat dissipation structure are improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a cooking apparatus in one embodiment;

FIG. 2 is a cross-sectional view of the heat dissipation structure in the embodiment of FIG. 1;

FIG. 3 is a side view of the heat dissipation structure in the embodiment of FIG. 2;

FIG. 4 is a schematic structural diagram of the heat dissipation structure in the embodiment of FIG. 3;

FIG. 5 is a schematic structural diagram of the cartridge in the embodiment of FIG. 4;

fig. 6 is an exploded view of the cartridge body in the embodiment of fig. 5.

The elements in the figure are labeled as follows:

10. a cooking device; 100. a heat dissipation structure; 110. a fan; 111. a gas stream; 120. a box body; 121. an accommodating chamber; 122. an air inlet; 123. an air outlet; 124. an air outlet notch; 125. buckling; 126. buckling lugs; 127. a limiting member; 128. a housing; 1281. a base plate; 1282. a left side plate; 1283. an upper side plate; 1284. a right side plate; 130. an air guide; 131. an air deflector; 132. a wind scooper; 133. an air guide channel; 140. a heat sink; 150. a mounting frame; 200. a power source; 300. a box body; 310. a mounting cavity; 320. air inlet mesh holes; 330. a wind hole; 400. a magnetron.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1 and 2, the cooking apparatus 10 in one embodiment includes a heat dissipation structure 100, a power supply 200, and a case 300. The heat dissipation structure 100 includes a fan 110, a case 120, and a wind guide 130. The fan 110 is used to generate an air flow. The case 120 has a receiving cavity 121 formed therein. The receiving cavity 121 is used for mounting the power supply 200. The accommodating chamber 121 penetrates both side surfaces of the box body 120 to form an air inlet 122 and an air outlet 123, respectively. The air guide member 130 is arranged at the air inlet 122, an air guide channel 133 is formed on the air guide member 130, the air guide channel 133 can be communicated with the accommodating cavity 121 through the air inlet 122, the air guide channel 133 is arranged towards the fan 110, an opening facing the fan 110 is an air guide opening, and at least one part of the fan 110 can be projected in the air guide opening along a direction perpendicular to a plane where the air guide opening is located. The power supply 200 is installed in the accommodating chamber 121; the case 300 is formed with a mounting cavity 310, the heat dissipation structure 100 is placed in the mounting cavity 310, and the air outlet 123 is communicated with the mounting cavity 310.

When the cooking apparatus 10 is operated, the power supply 200 is mounted in the receiving cavity 121 of the case 120 to generate a large amount of heat. The fan 110 operates to generate the airflow 111, the air guide channel 133 is arranged towards the fan 110, so that the airflow 111 can be ensured to stably flow into the accommodating cavity 121 from the air inlet 122, the power supply 200 is cooled, heat generated by the power supply 200 is taken away, and the heat is discharged into the mounting cavity 310 from the air outlet 123, and stability and safety of the operating temperature of the power supply 200 are ensured. Meanwhile, at least one part of the fan 110 can be projected in the air guide opening along the direction perpendicular to the plane of the air guide opening, so that enough air flow 111 is ensured to enter the air guide channel 133 through the air guide member 130, the heat dissipation effect and the service life of the power supply 200 are further ensured, the service life of the cooking device 10 is also ensured, and the reasonability and the reliability of the heat dissipation structure 100 are improved.

Referring to fig. 1 and 3, in one embodiment, the cooking apparatus 10 further includes a magnetron 400. The magnetron 400 is positioned at one side of the case 120, and the magnetron 400 is positioned in the rotational axis direction of the fan 110. A portion of the air flow 111 generated by the fan 110 can flow to the power supply 200 in the receiving cavity 121 through the guide passage, and another portion can be used to dissipate heat of the magnetron 400. The use efficiency of the fan 110 is improved, and the overall heat dissipation efficiency of the cooking apparatus 10 is ensured.

In one embodiment, the cooking apparatus 10 further comprises an inner bladder. An air hole 330 is formed on the inner wall of one side of the installation cavity 310. Two sides of the air hole 330 are respectively communicated with the installation cavity 310 and the inner container. After flowing out of the accommodating cavity 121 through the air outlet 123, the air flow 111 can flow toward the inner container through the air hole 330.

Referring to fig. 3, 5 and 6, in an embodiment, a cross-sectional area of the wind guiding channel 133 in a plane parallel to the wind guiding opening tends to increase from an end of the wind guiding member 130 away from the fan 110 toward the fan 110. The larger size of the end of the air guide 130 facing the fan 110 can ensure that the air guide 130 has a larger air intake. Meanwhile, the size of the air inlet 122 tends to be reduced, so that the flow rate of the air flow 111 can be increased, and the heat dissipation and cooling capacity of the fan 110 on the power supply 200 can be improved. Which in turn ensures the reliability and practicality of the heat dissipation structure 100.

Referring to fig. 4 and 5, in an embodiment, the wind guide 130 includes a wind scooper 132 and a wind guide plate 131, the wind scooper 132 is disposed on one side of the wind inlet 122, the wind guide plate 131 is disposed on the other side of the wind inlet 122, the wind scooper 132 and the wind guide plate 131 together enclose a wind guide channel 133, and the wind guide plate 131 can be projected on the fan surface of the fan 110 along the rotation axis direction of the fan 110. The air deflector 131 is located on the rotation axis direction of the fan 110, and when the fan 110 rotates to generate an air flow, the air deflector 131 can guide a part of the air flow 111 to flow into the air guiding channel 133, so that the air guiding channel 133 can stably guide the air flow 111 to flow into the accommodating cavity 121, sufficient air flow 111 can flow into the power supply 200, and the heat dissipation efficiency of the power supply 200 is improved.

Further, as shown in fig. 1, 2 and 4, the plane of the air guiding plate 131 forms an angle with the rotation axis direction of the fan 110. The air guide plate 131 is disposed toward the fan 110. The air flow 111 can be guided to flow into the air guide channel 133 more conveniently, the air inlet amount is increased, and the heat dissipation efficiency is ensured.

Specifically, as shown in fig. 4, the wind scooper 132 can enclose a wind guiding groove, an opening of the wind guiding groove facing the fan 110 is a wind guiding opening, a plane of the wind guiding opening intersects with a plane of the wind guiding plate 131, and the wind scooper 132 is disposed at one side of the fan 110 at an interval. Further, the projection of the fan 110 along the direction perpendicular to the plane of the air guiding opening is located in the air guiding opening. As shown in fig. 2 to 4, the wind scooper 132 and the wind guide plate 131 are disposed on one side of the fan 110 in a half-enclosed state. Part of the blades of the fan 110 are located in the air guiding channel 133. The air guiding cover 132 and the air guiding plate 131 can collect the airflow 111 generated by the fan 110 to the maximum extent, and thus the heat dissipation effect of the power supply 200 is ensured.

In one embodiment, as shown in fig. 1, the direction of the air flow in the air guide channel 133 intersects with the direction of the air flow in the accommodating chamber 121. The air guide 130 can change the direction of the air flow generated by the fan 110. So that a part of the air flow 111 generated by the fan 110 can flow into the accommodating chamber 121.

Referring to fig. 1, fig. 3 and fig. 5, in an embodiment, an air outlet gap 124 is further formed on the box body 120, the air outlet gap 124 can be communicated with the accommodating cavity 121 and the air outlet 123, and a side surface of the air outlet gap 124 intersects with a side surface of the air outlet 123. Except that air-out breach 124 can enlarge the air output and the air-out speed of air outlet 123, the power 200 of being convenient for dispels the heat. The position that air-out breach 124 was seted up corresponds the position of power 200 in holding chamber 121, and the power 200 of being convenient for more dispels the heat.

Specifically, as shown in fig. 6, the area of the air outlet notch 124 accounts for 1/3 to 1/5 of the area of the side surface where the air outlet notch is located. In the present embodiment, the area of the air outlet notch 124 occupies 1/4 of the area of the side surface thereof.

Referring to fig. 4 and 5, in an embodiment, the heat dissipation structure 100 further includes a heat sink 140, the heat sink 140 is configured to be mounted on the power supply 200, and the heat sink 140 is located at a side opposite to the air outlet notch 124. One side that air-out breach 124 is relative is less than air-out breach 124 place one side because open area for the convenience of power 200 dispels the heat, and then places radiator 140 in holding chamber 121 and the relative one side of air-out breach 124, improves heat radiation structure 100 and carries out radiating ability to power 200. The heat absorbed by the heat sink 140 can be taken away by the airflow 111 in the accommodating cavity 121, and thus, efficient heat dissipation is achieved. Specifically, the air outlet notch 124 and the heat sink 140 are respectively located on two opposite sides of the power supply 200. For different structural features of the box body 120, the air outlet notch 124 and the heat sink 140 are adopted to dissipate heat of the power supply 200 in two different ways, so that the heat dissipation efficiency of the heat dissipation structure 100 is ensured. Specifically, heat sink 140 is disposed proximate to the high voltage diode of power supply 200. The heat sink 140 is ensured to effectively dissipate heat of the power supply 200.

Referring to fig. 3, 4 and 6, in one embodiment, the cartridge 120 can be made from a splice. The box body 120 includes a buckle 125 and a bendable shell 128, the buckle 125 is disposed on one end of the shell 128, a buckle lug 126 is disposed on the other end of the shell 128 away from the buckle 125, and the shell 128 can be bent to enable the buckle 125 to be clamped on the buckle lug 126 and enclose the accommodating cavity 121. Similarly, the case 120 can be detached by the buckle 125 and the buckle lug 126. The housing 128 can further facilitate the assembly of the case 120, and reduce the production cost of the heat dissipation structure 100. Meanwhile, the structure stability of the box body 120 can be ensured by the way of the buckle 125 and the buckle lug 126.

Further, the box body 120 further includes a limiting member 127, the limiting member 127 is disposed on a sidewall of the box body 120 having the fastening lug 126, and when the buckle 125 is fastened on the fastening lug 126, the limiting member 127 is located below the fastening lug 126 and limits the buckle 125. The limiting member 127 can prevent the buckling lug 126 from shaking left and right to cause tripping, so that the structure of the box body 120 is loose, and the stable functions of the box body 120 and the air guide member 130 are ensured.

In one embodiment, the housing 128 includes a base plate 1281, a left side plate 1282, an upper side plate 1283, and a right side plate 1284. The left side plate 1282 and the right side plate 1284 are attached to opposite sides of the base plate 1281. The upper side panel 1283 is attached to a side of the left side panel 1282 that is distal from the base panel 1281. The upper side panel 1283 can be bent relative to the left side panel 1282 such that a side of the upper side panel 1283 that is distal from the left side panel 1282 can be connected to a side of the right side panel 1284 that is distal from the base panel 1281. The latch 125 is disposed on a side of the upper plate 1283 that is distal from the left plate 1282. The snap tab 126 is disposed on the side of the right side panel 1284 that is distal from the base panel 1281. The air guide plate 131 is disposed on the upper side plate 1283. The wind scooper 132 can be in contact with the left panel 1282 and the right panel 1284. The base plate 1281, the left side plate 1282, the right side plate 1284, and the upper side plate 1283 together define the receiving chamber 121, the intake port 122, and the exhaust port 123.

In this embodiment, a part of the air guiding notch 124 is formed on a side of the upper side plate 1283 away from the left side plate 1282. The other part of the air guiding notch 124 is arranged on one side edge of the right side plate 1284 far away from the base plate 1281. The air guiding notch 124 is located at one end of the upper plate 1283 and the left plate 1282 which enclose the air outlet 123.

Referring to fig. 1, 3 and 4, in one embodiment, the heat dissipating structure 100 further includes a mounting frame 150. The mounting bracket 150 is mounted on one side inner wall of the mounting chamber 310. The fan 110 is mounted on the mounting bracket 150. The mounting bracket 150 can improve the stability of the fan 110 in the mounting cavity 310. Meanwhile, the projection of the mounting rack 150 on the plane of the air guide opening is at least partially positioned in the air guide opening. The air flow 111 generated by the fan 110 can be stably output to the accommodating cavity 121, and the heat dissipation efficiency is ensured while the structural safety of the fan 110 is ensured.

Specifically, as shown in fig. 1 and 2, the rear surface of the box 300 is provided with air inlet mesh holes 320. The air inlet holes 320 can communicate with the installation cavity 310. The mounting bracket 150 is disposed on an inner wall of the mounting chamber 310 on a side where the air inlet holes 320 are formed. The fan 110 drives the external air flow to form a heat dissipation air flow to dissipate heat of the power supply 200 in the accommodating cavity 121.

In this embodiment, the power supply 200 generates a large amount of heat when the cooking apparatus 10 is in operation. The fan 110 is mounted on the mounting bracket 150. The rotation of the fan 110 enables the external air to flow into the installation cavity 310 through the air inlet holes 320 and forms a heat dissipation air flow. The magnetron 400 and the air guide plate 131 are disposed in a flowing direction of the heat dissipating air flow. One part of the heat dissipation airflow can directly dissipate heat and cool the magnetron 400, while the other part of the heat dissipation airflow is located in the direction of the rotation axis of the fan 110 due to the air deflector 131, and part of the fan blades of the fan 110 are located in the air guiding channel 133, so that the other part of the airflow 111 enters the accommodating cavity 121 from the air inlet 122 through the air guiding channel 133, and dissipates heat and cools the power supply 200 in the accommodating cavity 121. And a heat sink 140 is further disposed in the accommodating cavity 121 to dissipate heat of the power supply 200. The airflow 111 carries the heat of the power supply 200 to flow into the installation cavity 310 through the air outlet 123 and the air outlet gap 124, and flows to the inner container through the air holes 330 on the inner wall of the installation cavity 310. The heat dissipation air flow to the magnetron 400 can also enter the inner container through the air holes. Thereby accomplishing the simultaneous heat dissipation and cooling of the magnetron 400 and the power supply 200. The heat dissipation efficiency of the heat dissipation structure 100 is improved, the heat dissipation effect and the service life of the power supply 200 are ensured, and the service life of the cooking apparatus 10 is also ensured. It should be noted that other components requiring heat dissipation can be disposed in the accommodating cavity 121, and the magnetron 400 can be replaced with other components requiring heat dissipation. This embodiment is merely a reference for a combination.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless explicitly stated or limited otherwise, a first feature "on" or "under" a second feature may directly contradict the first and second features, or the first and second features may indirectly contradict each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the utility model, and these changes and modifications are all within the scope of the utility model. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A heat dissipation structure of a cooking apparatus, comprising:

a fan;

the box body is internally provided with an accommodating cavity, the accommodating cavity is used for installing a power supply, and the accommodating cavity penetrates through two side surfaces of the box body to respectively form an air inlet and an air outlet;

the air guide piece is arranged at the air inlet, an air guide channel is formed in the air guide piece, the air guide channel can be communicated with the accommodating cavity through the air inlet, the air guide channel faces the fan, the opening of the fan is an air guide opening, and at least one part of the fan can project in the air guide opening along the direction perpendicular to the plane where the air guide opening is located.

2. The heat dissipation structure as claimed in claim 1, wherein the air guide member includes an air guiding cover and an air guiding plate, the air guiding cover is disposed on one side of the air inlet, the air guiding plate is disposed on the other side of the air inlet, the air guiding cover and the air guiding plate together enclose the air guiding channel, and the air guiding plate can be projected on a fan surface of the fan along a rotation axis direction of the fan.

3. The heat dissipation structure of claim 2, wherein the air guiding cover can enclose an air guiding groove, an opening of the air guiding groove facing the fan is the air guiding opening, a plane where the air guiding opening is located intersects with a plane where the air guiding plate is located, the air guiding cover is arranged on one side of the fan at intervals, and a projection of the fan in a direction perpendicular to the plane where the air guiding opening is located in the air guiding opening; and/or

The cross-sectional area of the air guide channel on the plane parallel to the air guide opening tends to increase from one end of the air guide piece away from the fan to the direction towards the fan.

4. The heat dissipation structure of claim 3, further comprising a mounting frame, wherein the mounting frame is used for being mounted on an inner wall of the box mounting cavity, the fan is mounted on the mounting frame, and a projection of the mounting frame on a plane where the air guide opening is located is at least partially located in the air guide opening.

5. The heat dissipation structure of claim 1, wherein an air outlet notch is further formed on the box body, the air outlet notch can be communicated with the accommodating cavity and the air outlet, and a side surface of the air outlet notch is intersected with a side surface of the air outlet.

6. The heat dissipation structure of claim 5, wherein the area of the air outlet gap accounts for 1/3-1/5 of the area of the side surface where the air outlet gap is located; and/or

Still include the radiator, the radiator is used for installing on the power, the radiator be located with the air-out breach relative one side.

7. The heat dissipation structure of any one of claims 1 to 6, wherein the box body comprises a buckle and a bendable shell, the buckle is disposed on one end of the shell, and a buckle ear is disposed on the other end of the shell away from the buckle, and the shell can be bent to allow the buckle to be clamped on the buckle ear and enclose the accommodation cavity.

8. The heat dissipating structure of claim 7, wherein the box further comprises a limiting member disposed on a sidewall of the box having the fastening lug, and when the buckle is fastened on the fastening lug, the limiting member is located below the fastening lug and limits the buckle.

9. A cooking apparatus, characterized in that the cooking apparatus comprises:

a power source;

the heat dissipating structure of any of claims 1-8, the power source mounted within the receiving cavity; and

the box, the box is formed with the installation cavity, heat radiation structure places the installation cavity is in, the air outlet with the installation cavity is linked together.

10. The cooking apparatus according to claim 9, further comprising a magnetron positioned at one side of the case and in a direction of a rotation axis of the fan.

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