Antenna heat dissipation structure and cooking equipment

Abstract

The utility model relates to the technical field of kitchen appliances, and discloses an antenna heat dissipation structure and cooking equipment, the antenna heat dissipation structure comprises an antenna assembly and a heat dissipation assembly, the heat dissipation assembly is located outside an inner container of the cooking equipment, the heat dissipation assembly comprises an air duct and a fan, the air duct is provided with an inlet and an outlet, and the fan is communicated with the air duct. The fan is used for sucking gas in the external environment to flow in the air channel. The antenna assembly comprises an antenna body and a coaxial connector, the antenna body is connected with the solid-state microwave source through the coaxial connector, at least part of the antenna body is located in the inner container, and at least part of the coaxial connector is located in the air channel. The fan sucks the gas outside the air channel into the air channel, so that the coaxial connector can be cooled, the antenna assembly is prevented from being damaged, the service life of the antenna assembly is prolonged, and when the air channel is ventilated, the gas around the air inlet of the fan accelerates to flow, and the solid microwave source connected with the antenna assembly can be cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to an antenna heat dissipation structure and a cooking device. Background Art

[0002] A microwave-heating all-in-one cooking appliance includes a solid-state microwave source and an antenna. The antenna's receiving end is connected to the solid-state microwave source, while the antenna's transmitting end penetrates the inner pot. The antenna transmits microwaves generated by the solid-state microwave source into the inner pot, thereby heating the food inside. Over extended periods of operation, the solid-state microwave source transmits high energy, which can cause the coaxial portion of the antenna to heat up. Excessive heat and temperature rise can shorten the antenna's lifespan or even burn it out.

[0003] Therefore, there is an urgent need for an antenna heat dissipation structure and a cooking device to solve the above problems. Utility Model Content

[0004] One purpose of the present utility model is to provide an antenna heat dissipation structure, which can solve the problem of excessive temperature rise of the coaxial part of the antenna assembly in the prior art and extend the service life of the antenna assembly.

[0005] As conceived above, the technical solution adopted by the utility model is:

[0006] Provided is an antenna heat dissipation structure, comprising:

[0007] A heat dissipation assembly is located outside the inner pot of the cooking device, the heat dissipation assembly includes an air duct and a fan, the air duct has an inlet and an outlet, the fan is connected to the air duct, and the fan is used to suck air from the external environment to flow in the air duct;

[0008] The antenna assembly includes an antenna body and a coaxial connector, wherein the antenna body is at least partially located in the inner tank, the coaxial connector is at least partially located in the air duct, and the antenna body is connected to the solid-state microwave source through the coaxial connector.

[0009] Optionally, the coaxial connector includes a first part and a second part, the first part is connected to a coaxial cable outside the air duct, the coaxial cable is used to connect the first part and the solid-state microwave source, and the second part is connected to the antenna body inside the air duct.

[0010] Optionally, the air duct includes a connected parallel section and a tapered section. In the flow direction of the gas passing through the heat dissipation component, the cross-sectional area of the air duct of the parallel section is consistent, and the cross-sectional area of the air duct of the tapered section is reduced. The inlet is arranged in the parallel section, and the outlet is arranged at the end of the tapered section away from the parallel section. The coaxial connector is passed through the parallel section.

[0011] Optionally, in the flow direction of the gas passing through the heat dissipation assembly, the solid-state microwave source is located upstream of the air inlet of the fan, and the antenna assembly is located downstream of the air outlet of the fan.

[0012] Optionally, the fan and the air duct are both arranged above the inner tank, the air outlet of the fan is located in the radial direction of the fan, the air inlet of the fan is located in the axial direction of the fan and away from the inner tank, and the coaxial cable connecting the coaxial connector and the solid-state microwave source is located above the air inlet.

[0013] Optionally, the heat dissipation assembly further includes a radiator, which is disposed at the air outlet and extends into the inlet.

[0014] Optionally, the air duct has multiple inlets, and the antenna assembly and the fan each have multiple inlets. One fan is arranged corresponding to one antenna assembly, and one fan is connected to one inlet of the air duct, and multiple inlets are connected to the outlet.

[0015] Optionally, the antenna heat dissipation structure also includes a DC source, which is used to power the solid-state microwave source. The solid-state microwave source and the DC source are both arranged above the inner tank, and in the flow direction of the gas passing through the heat dissipation component, the DC source is located upstream of the air inlet of the fan.

[0016] Optionally, heat dissipation teeth are provided on the surface of the solid-state microwave source.

[0017] Another object of the present invention is to provide a cooking device that can solve the problem of excessive temperature rise of the coaxial part of the antenna assembly in the prior art and extend the service life of the antenna assembly.

[0018] As conceived above, the technical solution adopted by the utility model is:

[0019] A cooking device is provided, comprising a shell and the above-mentioned antenna heat dissipation structure, wherein the antenna heat dissipation structure is located inside the shell, a ventilation hole is provided on the shell, and the fan sucks gas outside the shell through the ventilation hole.

[0020] The beneficial effects of the utility model are:

[0021] The antenna heat dissipation structure proposed in the present invention includes an antenna assembly and a heat dissipation assembly. The heat dissipation assembly is located outside the inner pot of the cooking device. The heat dissipation assembly includes an air duct and a fan. The air duct has an inlet and an outlet. The fan is connected to the air duct and is used to suck gas from the external environment to flow in the air duct. The antenna assembly includes an antenna body and a coaxial connector. The antenna body is connected to a solid-state microwave source via the coaxial connector. The antenna body is at least partially located in the inner pot, and the coaxial connector is at least partially located in the air duct. When the fan is working, it sucks gas outside the air duct into the air duct. The gas entering the air duct can dissipate heat from the coaxial connector, and the gas can also return to the external environment. A cooking device with a microwave heating function transmits microwaves generated by a solid-state microwave source to an inner pot through an antenna assembly to heat the food in the inner pot. The antenna body is connected to the solid-state microwave source through a coaxial connector and a coaxial cable. When the solid-state microwave source works for a long time, the energy transmitted is high, which will cause the coaxial connector to heat up. If the heat is too excessive and the temperature rise is too high, the antenna assembly will burn out, affecting the service life of the antenna assembly. This problem can be solved by using a heat dissipation assembly to dissipate heat from the coaxial connector.

[0022] The cooking device disclosed herein includes a housing and the aforementioned antenna heat dissipation structure. The antenna heat dissipation structure is located within the housing. Ventilation holes are provided in the housing so that a fan can draw air from outside the housing through the holes when the fan is operating. This antenna heat dissipation structure solves the problem of excessive temperature rise in the coaxial portion of the antenna assembly in the prior art, thereby extending the service life of the antenna assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a partial structural diagram of the antenna heat dissipation structure provided by an embodiment of the present utility model;

[0024] Figure 2 This is a partial cross-sectional view of the antenna heat dissipation structure provided by an embodiment of the present utility model;

[0025] Figure 3 This is a structural diagram of a fan provided by an embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the partial structure of the cooking device provided by the embodiment of the utility model Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the partial structure of the cooking device provided by the embodiment of the utility model Figure 2 ;

[0028] Figure 6 This is a partial cross-sectional view of the cooking device provided by the embodiment of the utility model Figure 1 ;

[0029] Figure 7 This is a partial cross-sectional view of the cooking device provided by the embodiment of the utility model Figure 2 ;

[0030] Figure 8 This is a partial cross-sectional view of the cooking device provided by the embodiment of the utility model Figure 3 ;

[0031] Figure 9 It is a structural schematic diagram of a solid-state microwave source provided by an embodiment of the present utility model.

[0032] In the picture:

[0033] 1. Antenna assembly; 11. Coaxial connector; 111. First portion; 112. Second portion; 12. Antenna body;

[0034] 2. Air duct; 21. Parallel section; 22. Narrowing section; 221. Exit;

[0035] 3. Fan; 31. Air outlet; 32. Casing; 33. Fan blades;

[0036] 4. Radiator;

[0037] 5. Solid-state microwave source; 51. Heat dissipation teeth;

[0038] 6. DC source;

[0039] 7. Coaxial cable; 71. Cable connector;

[0040] 8. Inner liner;

[0041] 9. Shell; 91. Ventilation hole. DETAILED DESCRIPTION

[0042] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of it.

[0043] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0044] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0045] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0046] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0047] like Figures 1 to 9 As shown, this embodiment provides an antenna heat dissipation structure suitable for cooking equipment with microwave heating capabilities. The antenna heat dissipation structure includes an antenna assembly 1 and a heat dissipation assembly. The heat dissipation assembly is located outside the inner pot 8 of the cooking equipment. The heat dissipation assembly includes an air duct 2 and a fan 3. The air duct 2 has an inlet and an outlet 221. The fan 3 is connected to the air duct 2 and is used to draw air from the external environment into the air duct 2. The antenna assembly 1 includes an antenna body 12 and a coaxial connector 11. The antenna body 12 is connected to the solid-state microwave source 5 via the coaxial connector 11. The coaxial connector 11 is at least partially located within the air duct 2. The antenna body 12 is at least partially located within the inner pot 8. The microwaves generated by the solid-state microwave source 5 are transmitted to the inner pot 8 to heat the food placed therein. When in operation, the fan 3 draws air from outside the air duct 2 into the air duct 2. The air entering the air duct 2 dissipates heat from the coaxial connector 11 located within the air duct 2 and is then returned to the external environment through the outlet 221. When the solid-state microwave source 5 works for a long time, the energy transmitted is high, which will cause the coaxial connector 11 to heat up. If the heat is too much and the temperature rise is too high, the antenna component 1 will be burned, affecting the service life of the antenna component 1. This problem can be solved by using a heat dissipation component to dissipate heat from the coaxial connector 11.

[0048] In this embodiment, the fan 3 is located outside the air duct 2, and the air outlet 31 of the fan 3 is connected to the inlet of the air duct 2, and the air inlet of the fan 3 is connected to the external environment. That is, the air from the external environment can first pass through the fan 3 and then enter the air duct 2. In other embodiments, the fan 3 can also be located inside the air duct 2, that is, the air inlet of the fan 3 is connected to the inlet of the air duct 2, and the air outlet 31 of the fan 3 is connected to the outlet 221 of the air duct 2. That is, the air from the external environment can flow into the air duct 2 under the suction action of the fan 3 and pass through the fan 3 located inside the air duct 2.

[0049] Optionally, the coaxial connector 11 includes a first portion 111 and a second portion 112. The first portion 111 is connected to the coaxial cable 7 outside the air duct 2. The coaxial cable 7 is used to connect the first portion 111 to the solid-state microwave source 5. The second portion 112 is connected to the antenna body 12 inside the air duct 2. In a specific implementation, the air duct 2 includes a top plate and a bottom plate, both of which are provided with through holes. The coaxial connector 11 is inserted into the through holes. The end of the first portion 111 facing away from the second portion 112 can pass through the through hole in the top plate and be connected to the coaxial cable 7 via the cable connector 71. The end of the second portion 112 facing away from the first portion 111 can be connected to the antenna body 12 via the through hole in the bottom plate.

[0050] In this embodiment, the air duct 2 includes a connected parallel section 21 and a tapered section 22. In the direction of gas flow through the heat dissipation assembly, the cross-sectional area of the air duct in the parallel section 21 is consistent, while the cross-sectional area of the air duct in the tapered section 22 is reduced. The inlet of the air duct 2 is located in the parallel section 21, and the outlet 221 of the air duct 2 is located at the end of the tapered section 22 facing away from the parallel section 21. The coaxial connector 11 is inserted through the parallel section 21. In this embodiment, in the direction perpendicular to the extension of the antenna assembly 1, the bottom and top plates of the parallel section 21 of the air duct 2 are arranged in parallel, while the bottom and top plates of the tapered section 22 are arranged at an angle. This allows the distance between the bottom and top plates of the tapered section 22 to decrease as the tapered section 22 moves away from the parallel section 21, thereby reducing the cross-sectional area of the air duct in the tapered section 22. That is, the distance between the bottom plate and the top plate of the parallel section 21 in the extension direction of the antenna assembly 1 is greater than the distance between the bottom plate and the top plate of the necked section 22 in the extension direction of the antenna assembly 1. The coaxial connector 11 is arranged in the parallel section 21 to ensure that there is sufficient space for the coaxial connector 11 to dissipate heat.

[0051] Furthermore, in this embodiment, the two side panels of the tapered section 22 are also angled in the direction of air flow through the heat dissipation assembly. This creates a gradually tapering shape from the inlet toward the outlet 221 in a plane perpendicular to the extension of the antenna assembly 1, further reducing the exhaust range of the air duct 2. In practice, the air duct 2 is installed within the cooking device's housing 9, converging the exhaust gas and preventing it from dispersing to the sides.

[0052] Optionally, in the flow direction of gas passing through the heat dissipation assembly, the solid-state microwave source 5 is located upstream of the air inlet of the fan 3, and the antenna assembly 1 is located downstream of the air outlet 31 of the fan 3. When the fan 3 is in operation, it needs to draw gas from outside the air duct 2 into the air duct 2. Since the gas around the fan 3 is drawn in, a negative pressure state is formed at the air inlet of the fan 3, so that the external gas can actively flow toward the air inlet, dissipating heat for the solid-state microwave source 5 located upstream of the air inlet. The gas continuously enters the air duct 2 through the air outlet 31, and also dissipates heat for the coaxial connector 11 located downstream of the air outlet 31.

[0053] Optionally, the fan 3 and the air duct 2 are both disposed above the inner liner 8, with the air outlet 31 of the fan 3 located radially of the fan 3, the air inlet of the fan 3 located circumferentially of the fan 3 and facing away from the inner liner 8, and the coaxial cable 7 connecting the coaxial connector 11 and the solid-state microwave source 5 located above the air inlet. In this embodiment, the fan 3 is a centrifugal fan, comprising a housing 32 and blades 33 disposed within the housing 32. The rotation of the blades 33 causes air surrounding the centrifugal fan to be drawn into the center of the centrifugal fan under the action of centrifugal force and flung from the center toward the housing 32. The air outlet 31 is disposed on the housing 32 and communicates with the inlet of the air duct 2. The air inlet is disposed toward the top of the inner liner 8, which can accelerate the flow of gas above the inner liner 8 and ensure heat dissipation for the solid-state microwave source 5 and the coaxial cable 7.

[0054] Optionally, the heat dissipation component further includes a radiator 4, which is disposed at the air outlet 31 of the fan 3, the air outlet 31 being connected to the inlet of the air duct 2, and the radiator 4 extending into the inlet. The radiator 4 is used to dissipate heat from the gas passing through the inlet to reduce the temperature of the gas entering the air duct 2. Figure 3 As shown, in this embodiment, the radiator 4 is of fin type, and the radiator 4 is preferably made of metal with high thermal conductivity. The fins increase the contact area between the gas and the radiator 4, and cool the gas sucked in by the fan 3 to avoid the exhaust temperature of the outlet 221 of the air duct 2 being too high, which affects the user experience.

[0055] Optionally, multiple antenna assemblies 1 and fans 3 are provided, and the coaxial connector 11 of each antenna assembly 1 is connected to the solid-state microwave source 5 via a coaxial cable 7. Multiple antenna assemblies 1 are spaced apart according to the microwave requirements of the cooking device. To improve the heat dissipation efficiency of the antenna assemblies 1, one fan 3 is provided for each antenna assembly 1. Multiple inlets are provided for the air duct 2, and each fan 3 is connected to a corresponding inlet of the air duct 2 to increase the air intake. A single outlet 221 is provided for the air duct 2, and multiple inlets are connected to the single outlet 221. This not only ensures smooth exhaust but also reduces the assembly complexity of the air duct 2.

[0056] like Figure 1As shown, in this embodiment, two antenna assemblies 1 are provided, and the two antenna assemblies 1 are symmetrically arranged along the central axis of the inner tank 8. During specific implementation, the antenna assemblies 1 should be evenly distributed on the top of the inner tank 8 as much as possible to reduce the microwave blind spot as much as possible or even eliminate the microwave blind spot to ensure heating uniformity. In this embodiment, the outlet 221 of the air duct 2 is set to one, and both inlets are connected to the outlet 221. In addition, the increase in the number of fans 3 can not only increase the air intake of the air duct 2 and enhance the heat dissipation effect of the coaxial connector 11, but also accelerate the ventilation frequency around the fan 3 and enhance the heat dissipation effect of the solid-state microwave source 5.

[0057] In other embodiments, the antenna assembly 1 may be provided as one, and the antenna assembly 1 should be provided at the center position of the top of the inner liner 8 as much as possible.

[0058] Alternatively, as Figure 4 As shown, the antenna heat dissipation structure also includes a DC source 6. The solid-state microwave source 5 is electrically connected to the DC source 6. AC power is supplied to the solid-state microwave source 5 through the DC source 6. Both the solid-state microwave source 5 and the DC source 6 are disposed above the inner liner 8. In the direction of gas flow through the heat dissipation assembly, the DC source 6 blades are located upstream of the air inlet of the fan 3. This allows the fan 3 to drive the flow of gas near the DC source 6 when sucking gas from outside the air duct 2 into the air duct 2, thereby dissipating heat from the DC source 6. In this embodiment, both the antenna assembly 1 and the fan 3 are provided with two fans. When these two fans 3 are provided, the air inlet of one fan 3 is close to the DC source 6, and the air inlet of the other fan 3 is close to the solid-state microwave source 5, so as to further enhance the heat dissipation effect of the fan 3 on the solid-state microwave source 5 and the DC source 6.

[0059] Alternatively, as Figure 9 As shown, the surface of the solid-state microwave source 5 is further provided with heat dissipation teeth 51. The heat dissipation teeth 51 can better release the heat generated by the solid-state microwave source 5 into the environment to improve the heat dissipation effect. Preferably, the heat dissipation teeth 51 can be made of a metal with high thermal conductivity, such as aluminum.

[0060] This embodiment further provides a cooking device, comprising a housing 9 and the antenna heat dissipation structure described above. The antenna heat dissipation structure is located within the housing 9. The housing 9 is provided with ventilation holes 91, so that when the fan 3 is in operation, it can draw air outside the housing 9 through the ventilation holes 91. Optionally, the housing 9 is provided with ventilation holes 91 on both the side and the back.

[0061] The fan 3 and air duct 2 of the antenna heat dissipation structure of the cooking device are both arranged above the inner pot 8, the antenna body 12 is at least partially located in the inner pot 8, and the coaxial connector 11 is at least partially located in the air duct 2. The fan 3 can dissipate heat to the coaxial connector 11 through the air duct 2 to prevent it from being damaged by high temperature, thereby extending the service life of the antenna assembly 1. When ventilating into the air duct 2, the gas flow around the air inlet of the fan 3 is accelerated, which can dissipate heat for the solid-state microwave source 5 connected to the antenna assembly 1.

[0062] The above embodiments merely illustrate the basic principles and features of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications are possible without departing from the spirit and scope of the present invention. Such changes and modifications are within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. Antenna heat dissipation structure, characterized in that: include: A heat dissipation component is located outside the inner pot (8) of the cooking device, the heat dissipation component includes an air duct (2) and a fan (3), the air duct (2) has an inlet and an outlet (221), the fan (3) is connected to the air duct (2), and the fan (3) is used to suck gas from the external environment to flow in the air duct (2); An antenna assembly (1) comprises an antenna body (12) and a coaxial connector (11), wherein the antenna body (12) is at least partially located in the inner container (8), the coaxial connector (11) is at least partially located in the air duct (2), and the antenna body (12) is connected to a solid-state microwave source (5) via the coaxial connector (11).

2. The antenna heat dissipation structure according to claim 1, characterized in that: The coaxial connector (11) comprises a first part (111) and a second part (112); the first part (111) and a coaxial cable (7) are connected outside the air duct (2); the coaxial cable (7) is used to connect the first part (111) and the solid-state microwave source (5); and the second part (112) and the antenna body (12) are connected inside the air duct (2).

3. The antenna heat dissipation structure according to claim 1, characterized in that: The air duct (2) comprises a connected parallel section (21) and a constricted section (22); in the flow direction of the gas passing through the heat dissipation component, the air duct cross-sectional area of the parallel section (21) is consistent, and the air duct cross-sectional area of the constricted section (22) is reduced; the inlet is arranged at the parallel section (21), and the outlet (221) is arranged at an end of the constricted section (22) away from the parallel section (21); and the coaxial connector (11) is passed through the parallel section (21).

4. The antenna heat dissipation structure according to claim 1, characterized in that: In the flow direction of the gas passing through the heat dissipation assembly, the solid-state microwave source (5) is located upstream of the air inlet of the fan (3), and the antenna assembly (1) is located downstream of the air outlet (31) of the fan (3).

5. The antenna heat dissipation structure according to claim 1, characterized in that: The fan (3) and the air duct (2) are both arranged above the inner container (8); the air outlet (31) of the fan (3) is located in the radial direction of the fan (3); the air inlet of the fan (3) is located in the axial direction of the fan (3) and away from the inner container (8); and the coaxial cable (7) connecting the coaxial connector (11) and the solid-state microwave source (5) is located above the air inlet.

6. The antenna heat dissipation structure according to claim 1, characterized in that: The heat dissipation assembly further comprises a radiator (4), and the radiator (4) is arranged at the air outlet (31) of the fan (3).

7. The antenna heat dissipation structure according to claim 1, characterized in that: The air duct (2) has multiple inlets, and the antenna assembly (1) and the fan (3) both have multiple inlets. One fan (3) is provided corresponding to one antenna assembly (1), and one fan (3) is connected to one inlet of the air duct (2), and multiple inlets are connected to the outlet (221).

8. The antenna heat dissipation structure according to claim 1, characterized in that: The antenna heat dissipation structure further comprises a DC source (6), the DC source (6) being used to supply power to the solid-state microwave source (5), the solid-state microwave source (5) and the DC source (6) being both arranged above the inner tank (8), and the DC source (6) being located upstream of the air inlet of the fan (3) in the flow direction of the gas passing through the heat dissipation component.

9. The antenna heat dissipation structure according to any one of claims 1 to 8, characterized in that: The surface of the solid-state microwave source (5) is provided with heat dissipation teeth (51).

10. Cooking equipment, characterized in that The invention comprises a shell (9) and the antenna heat dissipation structure according to any one of claims 1 to 9, wherein the antenna heat dissipation structure is located in the shell (9), a ventilation hole (91) is provided on the shell (9), and the fan (3) sucks gas outside the shell (9) through the ventilation hole (91).

Images