CN106852080B - Heat dissipation air duct structure and baking equipment with same - Google Patents
Heat dissipation air duct structure and baking equipment with same Download PDFInfo
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- CN106852080B CN106852080B CN201710119387.6A CN201710119387A CN106852080B CN 106852080 B CN106852080 B CN 106852080B CN 201710119387 A CN201710119387 A CN 201710119387A CN 106852080 B CN106852080 B CN 106852080B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a heat dissipation air channel structure, which is arranged in equipment and used for dissipating heat of a part to be dissipated in the equipment, and comprises a first cover body and a second cover body, wherein in an assembly state, the first cover body and the second cover body are combined together and used for limiting a main heat dissipation air channel, the main heat dissipation air channel is provided with an air inlet and an air outlet, and the part to be dissipated is arranged between the air inlet and the air outlet; wherein the length of the second cover body is greater than that of the first cover body. The structure of the heat dissipation air duct of the invention provides an independent air duct by combining the two parts, so that cold air can flow through corresponding parts to be cooled completely when entering the independent air duct, thereby realizing high-efficiency heat dissipation. The invention also discloses baking equipment with the heat dissipation air duct structure.
Description
Technical Field
The invention relates to a heat dissipation technology of equipment, in particular to a heat dissipation air duct structure. The invention also relates to baking equipment with the heat dissipation air duct structure.
Background
In the working process of some devices, some components are often required to be radiated so as to ensure the working stability, the service life and the like of the components. For example, in some baking devices (such as ovens), the heat dissipation problem of some important components in the device becomes more important due to the higher operating temperature. However, in the baking equipment in the prior art, there is generally no special heat dissipation air duct for important components, and these important components can only be isolated from the high temperature region in the equipment by means of structural members such as heat dissipation partition plates, and the heat dissipation effect is not good. In some ovens with microwave function, the microwave main board and the magnetron need good heat dissipation, however, the prior art often cools the oven only by blowing through an open heat dissipation fan, the air blown by the heat dissipation fan often slowly flows in a relatively large space, and due to the lack of an independent heat dissipation air duct, the directionality and the flowing speed of the air are reduced along with the increase of the distance between the air and the heat dissipation fan, so that the heat dissipation efficiency is poor.
In addition, some other types of devices are provided with heat dissipation air ducts, but these heat dissipation air ducts are generally composed of box walls, partition plates and the like, and besides the large volume, the problems that the structure of the heat dissipation air ducts is not firmly fixed exist, and the like, for example, some components can only be fixed to other components, but cannot be fixed to structural members in the devices at the same time.
Disclosure of Invention
In view of the above-mentioned situation, a main object of the present invention is to provide a heat dissipation air duct structure that can be used in equipment with high operating temperature to efficiently dissipate heat from components to be dissipated in the equipment, and can be firmly fixed inside the equipment. The invention also aims to provide baking equipment adopting the heat dissipation air duct structure.
In order to realize the purpose, the technical scheme adopted by the invention is as follows:
a heat dissipation air channel structure is arranged in equipment and used for dissipating heat of parts to be dissipated in the equipment, and comprises a first cover body and a second cover body, wherein in an assembly state, the first cover body and the second cover body are combined together and used for limiting a main heat dissipation air channel, the main heat dissipation air channel is provided with an air inlet and an air outlet, and the parts to be dissipated are arranged between the air inlet and the air outlet; wherein the length of the second cover body is greater than that of the first cover body.
Preferably, in the assembled state, the second cover extends beyond the first cover in the length direction at an end corresponding to the outlet.
Preferably, a portion of the second cover extending beyond the first cover in the longitudinal direction is bent toward the first cover side;
and/or a fastening structure is arranged on a part of the second cover body, which extends beyond the first cover body in the length direction, so as to fasten the second cover body.
Preferably, a heat dissipation fan is arranged at the air inlet and/or the air outlet.
Preferably, an opening is formed in the first cover body and/or the second cover body, so as to form a lateral heat dissipation air duct.
Preferably, the opening is located on an upstream side of the member to be heat-dissipated.
Preferably, the opening is provided with a wind guiding structure for guiding a part of the airflow in the main heat dissipation air duct to pass through the opening.
Preferably, the air guiding structure includes a first air guiding sheet extending from an edge of the opening toward the inside of the primary heat dissipation air duct; or, the wind guiding structure comprises a second wind guiding sheet extending from the edge of the opening to the outside of the main heat radiating air duct.
Preferably, a first connecting structure is arranged on the first cover body, a second connecting structure is arranged on the second cover body, and the first connecting structure corresponds to the second connecting structure so as to connect the first cover body and the second cover body together.
Preferably, the first connecting structure and the second connecting structure are snap-fit structures which are matched with each other.
Preferably, one of the first connecting structure and the second connecting structure is a wedge-shaped protrusion, and the other is an elastic snap ring or an elastic hook.
Preferably, at least a portion of the first cover and at least a portion of the second cover are groove-like structures that fit each other.
Preferably, a fastening structure is arranged on the first cover body, so as to fasten the first cover body in the device.
A baking device comprises the heat dissipation air duct structure.
Preferably, the baking device is an oven with a microwave function, and the part to be radiated comprises a magnetron and/or a microwave main board.
Preferably, the magnetron is a fixed-frequency magnetron, a fixed-frequency high-voltage transformer is installed in the baking equipment, and the heat dissipation air duct structure is provided with a lateral heat dissipation air duct for dissipating heat of the fixed-frequency high-voltage transformer;
or the magnetron is a variable frequency magnetron, and the heat dissipation air duct structure is provided with a lateral heat dissipation air duct for dissipating heat of the back of the baking equipment.
Preferably, a heat dissipation partition plate is arranged inside the baking equipment, and the heat dissipation air channel structure is fixed on the heat dissipation partition plate.
Preferably, the air inlet of the main heat dissipation air duct faces the outside of the baking equipment; and/or the air outlet of the main heat dissipation air duct faces the outside of the baking equipment or is communicated with the main air outlet of the baking equipment.
The heat dissipation air duct structure provides an independent air duct in a mode of combining the two parts, so that cold air can flow through corresponding parts to be dissipated completely when entering the independent air duct from the air inlet and then flows to the air outlet, the directionality and the flowing speed of air flow can be ensured, and then the heat of the parts to be dissipated can be taken away efficiently, thereby realizing efficient heat dissipation. Meanwhile, due to the adoption of the structure with two parts of different lengths, the two parts can be conveniently and firmly fixed, and the firmness of the whole structure is obviously improved.
When the baking equipment adopts the heat dissipation air duct structure, the air outlet of the heat dissipation air duct structure can be merged into the main air outlet of the baking equipment, so that the heat dissipation of the baking equipment is better realized.
Drawings
Preferred embodiments of a heat dissipation duct structure and a toasting apparatus according to the present invention will be described below with reference to the accompanying drawings. In the figure:
fig. 1 is a schematic perspective view of a heat dissipation air duct structure according to a preferred embodiment of the present invention;
fig. 2A is a schematic front view of the heat dissipation air duct structure of fig. 1;
fig. 2B is a schematic top view of the heat dissipating air duct structure of fig. 2A;
fig. 2C is an exploded view of the heat dissipation air duct structure of fig. 1;
fig. 3 is a schematic perspective view illustrating a preferred embodiment of a first cover in the heat dissipation air duct structure according to the present invention;
FIG. 4 is a schematic top view of the first cover of FIG. 3;
FIG. 5 isbase:Sub>A cross-sectional view A-A of the first cover of FIG. 4;
fig. 6 is a schematic perspective view of another preferred embodiment of a first cover in the heat dissipation air duct structure of the present invention;
FIG. 7 is a cross-sectional view of the first cover of FIG. 6, cut in a manner similar to FIG. 5;
fig. 8 is a schematic perspective view illustrating a preferred embodiment of a second cover in the heat dissipation air duct structure according to the present invention;
FIG. 9 is a front view of the second cover of FIG. 8;
FIG. 10 is a top view of the second cover of FIG. 9;
FIG. 11 is a partial schematic view of a toasting apparatus according to a preferred embodiment of the present invention;
fig. 12 is a schematic structural view of the heat dissipation air duct structure in fig. 11 after the second cover is removed;
FIG. 13 is a schematic view, partially in section, of the toasting device of FIG. 11 with the heat dissipation duct structure cut away longitudinally to show internal structure and gas flow direction.
Detailed Description
Aiming at the heat dissipation problem of some important parts in some equipment, particularly the heat dissipation problem of the internal parts of equipment (such as baking equipment and the like) with higher internal temperature in work, the invention provides a solution for arranging independent heat dissipation air ducts for the parts.
Specifically, referring to fig. 1 to 10, a first aspect of the present invention proposes a heat dissipation air duct structure for dissipating heat from a member to be heat dissipated inside an apparatus (preferably, a baking apparatus or the like). The heat dissipation air duct structure comprises a first cover body 1 and a second cover body 2, wherein in an assembly state, the first cover body 1 and the second cover body 2 are combined together to define a main heat dissipation air duct, the main heat dissipation air duct is provided with an air inlet 3 and an air outlet 4 (see fig. 1 and fig. 2A), and a position between the air inlet 3 and the air outlet 4 is used for arranging a part to be dissipated; and wherein the first cover 1 and the second cover 2 may have different lengths, for example, the length of the second cover 2 located above is greater than the length of the first cover 1 located below, as shown in fig. 2C. Of course, it is also possible that the first cover 1 and the second cover 2 have the same length.
The heat dissipation air duct structure of the invention can be a channel structure with closed periphery in an assembly state, except for an air inlet and an air outlet which are positioned at two ends of the channel.
The heat dissipation air channel structure of the invention adopts a mode of combining two parts, namely, an independent air channel (namely a main heat dissipation air channel) can be defined by a mode of mutually buckling two cover bodies, namely, the first cover body and the second cover body are used as shells of the main heat dissipation air channel, when cold air enters the independent air channel from the air inlet, the cold air can flow through corresponding parts to be dissipated one hundred percent and then flow to the air outlet, so that the directionality and the flow speed of the air flow can be ensured, and the heat of the parts to be dissipated can be efficiently taken away, thereby realizing efficient heat dissipation. And because the two parts are combined, the part to be radiated can be conveniently arranged in the main radiating air duct no matter whether the structure of the part to be radiated is complex or not.
Compared with the scheme that the corresponding part to be cooled is cooled only by blowing through an open cooling fan in the prior art, the cooling air duct structure can obviously improve the cooling effect when the cooling air duct structure is adopted.
In particular, since the first cover 1 and the second cover 2 have different lengths, for example, the length of the second cover 2 is greater than that of the first cover 1, so that it is possible to easily achieve that both covers are firmly fixed. For example, in a case where one end (for example, an air inlet end or an air outlet end) of the first cover 1 and one end (for example, an air inlet end or an air outlet end) of the second cover 2 in the length direction are aligned, the other ends of the two are not aligned, but for example, the other end of the second cover 2 is suspended, and in a case where the first cover 1 is fixed to a corresponding structural member in the equipment, the suspended other end of the second cover 2 may be used to be additionally fixed to the same structural member or other structural members in the equipment, and compared to a scheme where the second cover 2 is only fixed to the first cover 1 (for example, in a case where the two are equal in length), the firmness of the whole structure may be significantly improved.
In the embodiment where the first lid 1 and the second lid 2 have different lengths, it is preferable that the second lid 2 extends beyond the first lid 1 in the longitudinal direction at an end corresponding to the outlet in the assembled state. That is, preferably, the ends of the first cover 1 and the second cover 2 corresponding to the air inlet may be aligned, and the end of the second cover 2 corresponding to the air outlet is suspended, so that the heat dissipation fan can be conveniently installed at the air inlet, and the suspended end of the second cover 2 can be used for changing the direction of the air outlet in addition to being used for additional fixing, so as to convey the heat dissipation airflow to a desired position in the device.
Preferably, a portion of the second cover 2 extending beyond the first cover 1 in the longitudinal direction is bent toward the first cover 1 side. Here, the bending includes a smooth curve, and also includes a bend with a sharp corner. As shown in fig. 9, the left end of the second cover 2 corresponds to the air outlet and has a downward bent portion, and as can be seen from fig. 2A, in the assembled state, the first cover 1 is located below the second cover 2, so that after the left end of the second cover 2 is bent downward, the main heat dissipation air duct starts to change direction downward at a position close to the air outlet, as shown in fig. 1.
As mentioned above, the other suspended end of the second cover 2 may be additionally fixed to another structural member or the same structural member in the device, for which reason it is preferred that a portion of the second cover 2 extending in the length direction beyond the first cover 1 is provided with fastening structures, such as a plurality of fastening holes 21 provided at the edges, as shown in fig. 8 and 10 (also visible in fig. 2B), for fastening the corresponding portion of the second cover 2, such as by screws.
Preferably, the first cover 1 and the second cover 2 each include a bottom and two side walls, and when combined, the two side walls of the first cover 1 and the second cover 2 abut against each other, that is, the first cover 1 and the second cover 2 are fastened to each other.
Preferably, the cross-sectional area of the main heat dissipation duct may be determined according to the cross-sectional area of the component to be dissipated, for example, may be slightly larger than the cross-sectional area of the component to be dissipated, or may be set to have a variable cross-sectional area, such as slightly larger than the cross-sectional area of the component to be dissipated at the position where the component to be dissipated is installed, and may be smaller than the cross-sectional area of the component to be dissipated at the upstream side and the downstream side of the component to be dissipated. The appropriate cross section area is arranged for the main heat dissipation air duct, so that the flow speed and the flow directionality of the air flow in the main heat dissipation air duct can be kept, and the heat dissipation effect is further ensured.
Preferably, the air inlet 3 and/or the air outlet 4 may be provided with a heat dissipation fan 5, for example, as shown in fig. 11-13, when the heat dissipation air duct structure is used in a baking device, the heat dissipation fan 5 is provided at the air inlet 3. For example, the heat dissipation fan 5 may forcibly blow the outside air into the main heat dissipation duct, so that a required flow rate of the cool air may be ensured to secure a heat dissipation effect. When the heat dissipation fan 5 is disposed at the position of the air outlet 4, the heat dissipation effect is similar thereto.
Preferably, an opening is provided on the first cover 1 and/or the second cover 2, for example, a first opening 11 provided on the first cover 1 (preferably provided at the bottom of the first cover 1) in the embodiments of fig. 3 and 6, so as to form a lateral heat dissipation air duct. That is, on the basis of the channel structure with the periphery closed provided above, an additional opening may be provided on the side wall of the channel, so that the airflow entering the main heat dissipation duct can flow through the component to be cooled and flow to the air outlet 4, and a part of the air can also flow out of the main heat dissipation duct through the opening, thereby forming a lateral heat dissipation duct for dissipating heat of other components (for example, components that need to be cooled but cannot be installed in the main heat dissipation duct) outside the main heat dissipation duct.
It is conceivable that such a scheme of providing an opening on the first cover body 1 and/or the second cover body 2 is more effective in the case where the heat radiation fan 5 is provided at the air intake 3, and preferably, the opening is provided only on the downstream side of the heat radiation fan 5.
Preferably, the opening is located on the upstream side of the component to be heat-dissipated, so that the temperature of the airflow branched out through the opening is low, and the heat dissipation effect of the lateral heat dissipation air duct can be ensured. Of course, it is also possible to provide the opening on the downstream side of the member to be heat-dissipated, or to provide the opening between two members to be heat-dissipated, depending on the arrangement relationship of the members in the apparatus.
Preferably, a wind guiding structure may be disposed at the opening for guiding a part of the airflow in the primary heat dissipation air duct through the opening. The following description will be given taking as an example a configuration in which the first cover 1 is provided with the first opening 11.
In one embodiment, as shown in fig. 3 to 5, the wind guiding structure includes a first wind guiding plate 12 extending from an edge of the opening (e.g., the first opening 11) toward the inside of the main heat dissipation air duct. The first air guiding sheet 12 preferably extends from the bottom surface of the first cover 1 toward the inside of the first cover 1, and is preferably bent toward the air inlet side (i.e., the upstream side). When a part of the airflow entering the main heat dissipation air duct through the air inlet (in fig. 3-5, the right side end of the first cover 11 corresponds to the air inlet) hits the first air guiding sheet 12, the part of the airflow will flow out of the first opening 11 due to the shielding and guiding effects of the first air guiding sheet 12, so as to form a lateral heat dissipation air duct.
Alternatively, in another embodiment, as shown in fig. 6 to 7, the wind guiding structure includes a second wind guiding plate 13 extending from an edge of the opening (e.g. the first opening 11) toward the outside of the main heat dissipating air duct. For example, the second air guiding plate 13 extends from the bottom surface of the first cover 1 to the outside of the first cover 1, and is preferably inclined toward the side close to the air inlet. When a part of the airflow entering the main heat dissipation duct through the air inlet (in fig. 6, the left end of the first cover 11 corresponds to the air inlet, and in fig. 7, the right end of the first cover corresponds to the air inlet) hits the second air guiding sheet 13, the part of the airflow will flow out of the first opening 11 due to the guiding function of the second air guiding sheet 13, so as to form a lateral heat dissipation duct.
Preferably, a first connecting structure is arranged on the first cover body 1, a second connecting structure is arranged on the second cover body 2, and the first connecting structure corresponds to the second connecting structure so as to connect the first cover body 1 and the second cover body 2 together. The first connecting structure and the second connecting structure can be disposed on the outer side surfaces of the two side walls of the first cover body 1 and the second cover body 2 and near the combining surface, so that the first connecting structure and the second connecting structure can be close to or interact with each other when the first cover body 1 and the second cover body 2 are buckled together. And the corresponding connecting structure is arranged on the outer side surfaces of the two side walls, so that the connecting structure has the advantages of convenience in operation and no occupation of internal space.
For example, the first connecting structure and the second connecting structure may be screw holes and/or through holes which are matched with each other, so that the first cover body 1 and the second cover body 2 can be fixedly connected by means of a threaded connector and the like.
Preferably, the first connecting structure and the second connecting structure are snap-fit structures which are matched with each other. Through setting up snap-on connection structure, can realize the connection between first lid 1 and the second lid 2 fast to improve the installation effectiveness. When setting up corresponding block structure on the lateral surface of two lateral walls of first lid 1 and second lid 2, except can conveniently accomplishing the assembly, can also conveniently accomplish the dismantlement when needs are dismantled, because these block structures expose in the outside, can be enough clearly visible, can also conveniently exert the dismantlement power.
Preferably, one of the first connecting structure and the second connecting structure is a wedge-shaped protrusion 14, and the other is an elastic snap ring 15 or an elastic hook. In the illustrated embodiments, the wedge-shaped projection 14 is provided on the second cover body 2 (see fig. 8 to 10) as the second coupling structure, and the snap ring 15 is provided on the first cover body 1 (see fig. 3 to 7) as the first coupling structure.
Preferably, at least a part of the first cover body 1 and at least a part of the second cover body 2 are groove-shaped structures which are matched with each other, namely, a structure comprising a bottom and two side walls, preferably an elongated groove-shaped structure, see fig. 3-10. In the embodiments shown in the figures, the first cover 1 has an elongated groove-like structure, and a portion of the second cover 2 has an elongated groove-like structure, and after the two covers are fastened together to form the main heat dissipation air duct, the corresponding air inlet and air outlet are located at two ends along the length direction. Correspondingly, the first and second connecting structures are arranged on both sides of the long side of the elongated slot-like structure.
Preferably, the first cover 1 is provided with fastening structures, such as a plurality of fastening holes 16 provided at the bottom of the first cover 1, see fig. 3, 4 and 6, for fastening the first cover 1 inside the device, e.g. by means of screws or the like.
During specific assembly, the first cover 1 may be installed and fixed through the fastening hole 16, then the corresponding component to be heat-dissipated, the heat-dissipating fan, etc. are installed on the first cover 1, and then the second cover 2 is fastened, and fastening of the second cover 2 is completed by means of the corresponding connecting structure (such as the wedge-shaped protrusion 14 and the elastic snap ring 15) and the fastening hole 21. Therefore, the first cover body 1 and the second cover body 2 jointly form an independent air channel, so that heat dissipation air flow entering the air channel can intensively flow through corresponding parts to be dissipated, theoretically, the heat dissipation air flow can flow through the parts to be dissipated one hundred percent, and heat generated in the work of the heat dissipation air flow is efficiently taken away to achieve heat dissipation.
When the heat dissipation air duct structure of the present invention is used in high temperature applications (e.g., equipment with a high operating temperature), the first cover 1 and the second cover 2 are preferably made of high temperature resistant materials, such as PA 6.
The heat dissipation air duct structure can be used for baking equipment such as an oven and the like, so that high-efficiency heat dissipation is provided for specific parts in the baking equipment.
Therefore, the second aspect of the present invention also provides a baking device, which comprises the heat dissipation air duct structure described in the foregoing.
Preferably, the toasting device according to the present invention is a microwave oven, and the components to be radiated comprise a magnetron 7 and/or a microwave main board 6. As shown in fig. 11-13, as an example, both the microwave main board 6 and the magnetron 7 are disposed in the heat dissipation air duct structure, wherein the microwave main board 6 is disposed at the upstream side, the magnetron 7 is disposed at the downstream side, and the heat dissipation fan 5 is disposed at the air inlet. Thus, the air blown into the main heat-radiating duct by the heat-radiating fan 5 can sequentially flow through the microwave main board 6 and the magnetron 7, thereby effectively radiating heat to both.
If the oven adopts a fixed-frequency power supply, namely the magnetron 7 is a fixed-frequency magnetron, a fixed-frequency high-voltage transformer is arranged in the oven to dissipate heat. As shown in fig. 11 and 13, the constant-frequency high-voltage transformer 8 is disposed at the back of the oven and cannot be disposed in the heat dissipation air duct structure, however, since the bottom of the first cover 1 is further provided with the opening 11 in a preferred embodiment of the heat dissipation air duct structure of the present invention, a lateral heat dissipation air duct can be formed, and therefore, the constant-frequency high-voltage transformer 8 can dissipate heat by using the lateral heat dissipation air duct.
As shown in fig. 13, the cool air blown into the cooling air duct structure by the cooling fan 5 is divided into two lines (indicated by arrows): one is that the cold air flows through the circuits of the microwave main board 6 and the magnetron 7 in the main heat radiating air duct in sequence, and the cold air finally flows out of the main heat radiating air duct through the air outlet and is discharged out of the oven after being merged into the main air outlet of the oven; the other line is a line flowing to the lower fixed-frequency high-voltage transformer 8 through the lateral heat-dissipation air duct, and the cold air can be recycled by the heat-dissipation motor 10 at the top of the oven after the heat dissipation is performed on the fixed-frequency high-voltage transformer 8, and finally is merged into the main air outlet of the oven through the heat-dissipation motor 10 at the top and is discharged out of the oven.
If the oven adopts a variable frequency power supply, namely the magnetron 7 is a variable frequency magnetron, the oven is not provided with the fixed frequency high voltage transformer, at the moment, the first cover body 1 with the opening 11 can still be adopted, and the corresponding lateral heat dissipation air duct can be used for dissipating heat for the back of the oven.
Preferably, as shown in fig. 11 and 13, a heat dissipation partition plate 9 is arranged inside the baking device, and the heat dissipation air duct structure is fixed on the heat dissipation partition plate 9. Specifically, when assembling, the first cover 1 is first mounted on the heat dissipation partition 9 and fastened with screws; then, the heat dissipation fan 5, the microwave main board 6 and the magnetron 7 are installed on the first cover body 1, finally the second cover body 2 is buckled, and a screw is screwed, so that one end of the second cover body 2 corresponding to the air outlet is also fixed on the heat dissipation partition plate 9.
Preferably, as shown in fig. 13, the air inlet of the main heat dissipation air duct may directly face the outside of the baking device, so that the heat dissipation fan 5 may directly blow the external cold air into the main heat dissipation air duct to improve the heat dissipation efficiency. Of course, the air inlet of the main heat dissipation air duct may not directly face the outside, but may be communicated with the main air inlet of the baking equipment, and also can effectively blow in cold air.
Preferably, the air outlet of the main heat dissipation air duct can directly face the outside of the baking equipment, so that the hot air carrying heat is directly discharged out of the baking equipment. Or, the air outlet may not directly face the outside, but may be communicated with the main air outlet of the baking device, so that the hot air in the main heat dissipation air duct is merged into the main air outlet channel of the baking device, and then is discharged along with other hot air of the baking device.
In summary, when the baking device of the present invention adopts the above-mentioned heat dissipation air duct structure, the cool air blown by the heat dissipation fan can be used for heat dissipation of the magnetron and the microwave main board to a hundred percent, so that the heat dissipation efficiency of the magnetron and the microwave main board is higher, and the baking device works more stably and has a longer service life. In addition, the radiating air duct structure can be applied to a fixed-frequency machine type or a variable-frequency machine type, so that the generalization is achieved. In addition, hot air after the magnetron is radiated can be conveniently merged into a main air outlet of the baking equipment, and the radiation of the baking equipment is better realized.
It will be readily appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed without conflict.
It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.
Claims (10)
1. A heat dissipation air channel structure is arranged in equipment and used for dissipating heat of parts to be dissipated in the equipment, and is characterized by comprising a first cover body and a second cover body, wherein in an assembly state, the first cover body and the second cover body are combined together and used for limiting a main heat dissipation air channel, the main heat dissipation air channel is provided with an air inlet and an air outlet, and the parts to be dissipated are arranged between the air inlet and the air outlet; wherein the length of the second cover body is greater than that of the first cover body;
the first cover body and/or the second cover body are/is provided with an opening for forming a lateral heat dissipation air duct;
the opening is positioned on the upstream side of the part to be radiated;
the opening is provided with a wind guide structure for guiding a part of airflow in the main radiating air duct to pass through the opening;
the air guide structure comprises a first air guide sheet extending from the edge of the opening to the interior of the main heat dissipation air duct; the air guide structure comprises a second air guide sheet extending from the edge of the opening to the outside of the main heat dissipation air duct;
in an assembly state, the second cover body extends beyond the first cover body in the length direction at one end corresponding to the air outlet;
a part of the second cover body extending beyond the first cover body in the length direction is bent towards the first cover body side;
and/or a fastening structure is arranged on a part of the second cover body, which extends beyond the first cover body in the length direction, so as to fasten the second cover body.
2. The heat dissipation air duct structure according to claim 1, wherein a heat dissipation fan is disposed at the air inlet and/or the air outlet.
3. The heat dissipation air duct structure according to claim 1, wherein a first connecting structure is disposed on the first cover, and a second connecting structure is disposed on the second cover, and the first connecting structure corresponds to the second connecting structure to connect the first cover and the second cover together.
4. A heat dissipation air duct structure according to claim 1, wherein at least a portion of the first cover and at least a portion of the second cover are groove-like structures that fit each other.
5. The structure of any one of claims 1 to 4, wherein a fastening structure is provided on the first cover for fastening the first cover inside the device.
6. A toasting apparatus comprising a heat dissipation duct structure according to any of claims 1-5.
7. Toasting device according to claim 6, characterized in that the toasting device is a microwave-enabled toaster and the components to be radiated comprise a magnetron and/or a microwave main board.
8. The toasting apparatus according to claim 7, wherein the magnetron is a fixed-frequency magnetron, a fixed-frequency high-voltage transformer is installed in the toasting apparatus, and the heat dissipation air duct structure has a lateral heat dissipation air duct for dissipating heat from the fixed-frequency high-voltage transformer;
or the magnetron is a variable frequency magnetron, and the heat dissipation air duct structure is provided with a lateral heat dissipation air duct for dissipating heat of the back of the baking equipment.
9. The toasting apparatus according to claim 6, wherein a heat-dissipating partition is provided inside the toasting apparatus, and the heat-dissipating air duct structure is fixed on the heat-dissipating partition.
10. The toasting apparatus according to any of the claims 6-9, wherein the air inlet of the primary heat dissipation air duct is directed towards the exterior of the toasting apparatus; and/or the air outlet of the main heat dissipation air duct faces the outside of the baking equipment or is communicated with the main air outlet of the baking equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107981741A (en) * | 2017-12-22 | 2018-05-04 | 珠海格力电器股份有限公司 | One kind scorches equipment |
| CN107898334B (en) * | 2017-12-22 | 2023-09-19 | 珠海格力电器股份有限公司 | Heat dissipation wind channel subassembly and have its equipment of toasting |
| CN107960881B (en) * | 2017-12-22 | 2023-09-22 | 珠海格力电器股份有限公司 | Temperature limiting protection structure of steaming and baking equipment and steaming and baking equipment |
| CN111912643B (en) * | 2020-08-19 | 2022-05-06 | 西京学院 | Manufacturing system state robustness detection device based on mathematical programming algorithm |
| CN112167955B (en) * | 2020-10-10 | 2022-09-20 | 广东美的厨房电器制造有限公司 | Heat dissipation assembly of cooking utensil and cooking utensil with same |
| CN114708795A (en) * | 2022-03-25 | 2022-07-05 | 杭州海康威视数字技术股份有限公司 | Screen display device |
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Inventor after: You Yan Inventor after: Xiao Binghai Inventor after: Leng Fenyong Inventor after: Liang Shaotang Inventor after: Chen Xingqiang Inventor after: Ding Luohuo Inventor before: You Yan Inventor before: Feng Yuantong Inventor before: Xiao Binghai Inventor before: Leng Fenyong Inventor before: Liang Shaotang Inventor before: Chen Xingqiang Inventor before: Ding Luohuo |
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