Heating base and household appliance

Abstract

The invention relates to the technical field of household appliances, and discloses a heating base and a household appliance, and the heating base comprises a base assembly which is provided with an air inlet and an air outlet; the heating assembly is arranged in the base; the heat dissipation air duct comprises an air inlet duct communicated with the air inlet and the heating assembly and an air outlet duct communicated with the air outlet and the heating assembly; and the fan is arranged in the air inlet duct. By arranging the air inlet duct, the air outlet duct and the fan, heat of the heating assembly can be taken away in time, deformation and even fire caused by too high temperature in the heating base are prevented, in addition, due to the fact that heat of the heating assembly can be taken away in time, the power of the heating assembly can be improved, and rapid water boiling or food heating is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a heating base and a household appliance. Background Art

[0002] The base power of household appliances with heating function, such as electric kettles, is generally small, which cannot meet the user's demand for quick boiling of water. If the power is large, long-term use may easily cause the base to overheat, resulting in deformation or even fire. Summary of the invention

[0003] In view of this, the present invention provides a heating base and a household appliance to solve the problem that the base is prone to overheating.

[0004] In a first aspect, the present invention provides a heating base, comprising:

[0005] A base assembly having an air inlet and an air outlet;

[0006] A heating component is disposed in the base;

[0007] A heat dissipation air duct, comprising an air inlet air duct connecting the air inlet and the heating component, and an air outlet air duct connecting the air outlet and the heating component;

[0008] The fan is arranged in the air inlet duct.

[0009] Beneficial effect: When the heating base is working, the heating component heats up, and the fan works, so that the cooling airflow enters the air inlet duct from the air inlet, and reaches the heating component after passing through the air inlet duct. The cooling airflow carries the heat emitted by the heating component and becomes hot airflow, which enters the air outlet duct and is discharged from the air outlet. Therefore, the heating base can take away the heat of the heating component in time by setting the air inlet duct, the air outlet duct and the fan, and prevent the internal temperature of the heating base from being too high, causing deformation or even fire. In addition, since the heat of the heating component can be taken away in time, the power of the heating component can be increased, and water can be boiled or food can be heated quickly.

[0010] In an optional embodiment, the air inlet is arranged at the bottom of the base assembly, the heating base also includes a fixed frame, the heating assembly is arranged on the fixed frame, the fixed frame is provided with an air hole connected to the air inlet, and the fixed frame cooperates with the base assembly to form the air inlet duct.

[0011] Beneficial effect: By setting up a fixing frame, it is convenient to install the heating component and to form an air inlet duct. The fixing frame is provided with an air hole connected to the air inlet. The fixing frame and the base assembly cooperate to form an air inlet duct. When the fan is working, the cooling air flow enters from the air inlet at the bottom, then flows upward, passes through the inside of the fixing frame, and then flows to the heating component through the air hole. The cooling air flow carries the heat emitted by the heating component and becomes a hot air flow. The hot air flow enters the air outlet duct and is discharged from the air outlet.

[0012] In an optional embodiment, the fan is disposed between the air inlet and the air hole.

[0013] Beneficial effect: The fan is arranged between the air inlet and the air hole, which can effectively drive the air flow, so that the external cooling air flows into the air inlet duct through the air inlet and flows to the heating component through the air hole.

[0014] In an optional embodiment, a first rib is provided at the bottom of the fixing frame, the first rib is in contact with the bottom of the base assembly, and the first rib surrounds the air inlet and the air hole.

[0015] Beneficial effect: A first rib is provided at the bottom of the fixing frame, the first rib contacts the bottom of the base assembly, surrounds the air inlet and the air hole, and the inner side of the first rib forms a part of the air inlet duct, which can prevent the cooling airflow sucked in by the fan from escaping.

[0016] In an optional embodiment, the air passage is provided with a plurality of blocking ribs.

[0017] Beneficial effect: By setting a number of blocking ribs at the air holes, the blocking ribs play a heat insulation role, which can prevent the heat of the heating component from being transferred to the fan, causing the fan chip to overheat and fail to work normally. In addition, the setting of the blocking ribs does not affect the air flow through the air holes.

[0018] In an optional implementation, the arrangement of the barrier ribs is adapted to the shape of the fan support.

[0019] Beneficial effect: Since the arrangement of the barrier ribs is adapted to the shape of the fan bracket, it can be ensured that the setting of the barrier ribs does not affect the airflow through the air holes, and can effectively play a heat insulating role, thereby preventing the heat of the heating components from being transferred to the fan, causing the fan chip to overheat and fail to work normally.

[0020] In an optional embodiment, a first through hole is provided on a side of the fixing frame, and a second rib is provided on an outer wall of the fixing frame and / or an inner wall of the base assembly, and the second rib, the fixing frame and the base assembly form the air outlet duct.

[0021] Beneficial effect: The second rib, the fixing frame and the base assembly form an air outlet duct, which can limit the hot air flow in the air outlet duct, thereby preventing the heat from dissipating to the electric control board assembly, causing the controller temperature to rise and unable to work normally.

[0022] In an optional embodiment, the base assembly includes a base and a bottom cover, the bottom cover is connected to the bottom of the base, and the air inlet is arranged on the bottom cover.

[0023] Beneficial effect: The base assembly includes a base and a bottom cover. During assembly, after the base and the fixing frame are assembled, the fan can be installed at the bottom of the fixing frame, and then the bottom cover can be connected to the bottom of the base, which is convenient for assembly of the entire heating base.

[0024] In an optional embodiment, the air outlet includes a first air outlet arranged on the bottom cover, and a convex rib is provided on the lower surface of the bottom cover, and the convex rib separates the air inlet and the first air outlet.

[0025] Beneficial effect: Since the bottom cover is provided with both the air inlet and the first air outlet, the convex rib separates the air inlet from the first air outlet, thereby preventing the fan from inhaling the hot air flow discharged from the first air outlet.

[0026] In an optional embodiment, the base includes a bottom annular surface, the bottom of the fixing frame is supported on the bottom annular surface, and the bottom annular surface is provided with a second through hole at a position above the first air outlet.

[0027] Beneficial effect: The setting of the bottom annular surface facilitates the positioning and installation of the fixing bracket. By setting the second through hole on the bottom annular surface, the hot air flow flows out from the first through hole of the fixing bracket and enters the air outlet duct, and then flows to the first air outlet through the second through hole.

[0028] In an optional embodiment, the air outlet also includes a second air outlet arranged on the side of the base.

[0029] Beneficial effect: The air outlet also includes a second air outlet arranged on the side of the base, so the hot air flow can flow out from the first air outlet and the second air outlet at the same time, which can improve the heat dissipation efficiency of the heating base.

[0030] In an optional embodiment, the heating base further includes a support ring and a microcrystalline plate, wherein the microcrystalline plate is disposed above the heating component, and the support ring is fixedly connected to the fixing frame and is sealed to the edge of the microcrystalline plate via a sealing ring.

[0031] Beneficial effects: A kettle or other cooking utensils that need to be heated can be placed on the microcrystalline board. The support ring is fixedly connected to the fixing frame and sealed to the edge of the microcrystalline board, which can prevent water from entering the interior of the heating base through the edge of the microcrystalline board.

[0032] In an optional embodiment, a step portion is provided in the fixing frame, the microcrystalline board is supported on the step portion, and the support ring and the step portion clamp the microcrystalline board in the middle.

[0033] Beneficial effect: the microcrystalline board is supported on the step portion, and the support ring and the step portion clamp the microcrystalline board in the middle, and the fixing method of the microcrystalline board is simple and convenient, and there is no need to drill holes in the microcrystalline board.

[0034] In an optional embodiment, the lower end of the support ring is provided with a first annular pressing portion and a second annular pressing portion, the lower end of the second annular pressing portion is higher than the lower end of the first annular pressing portion, the second annular pressing portion is located on the inner side of the first annular pressing portion, the second annular pressing portion presses against the upper side of the microcrystalline plate, and the first annular pressing portion surrounds the microcrystalline plate.

[0035] Beneficial effect: the second annular pressing portion presses against the upper side of the microcrystalline board, the first annular pressing portion surrounds the microcrystalline board, the second annular pressing portion and the step portion cooperate to limit and fix the microcrystalline board in the up and down directions, and the first annular pressing portion limits and fixes the microcrystalline board in the circumferential direction, so the microcrystalline board can be fixed in all directions.

[0036] In an optional embodiment, a sealing groove is formed between the first annular pressing portion and the second annular pressing portion, and a portion of the sealing ring is embedded in the sealing groove.

[0037] Beneficial effect: A sealing groove is formed between the first annular pressing portion and the second annular pressing portion, and a portion of the sealing ring is embedded in the sealing groove, which facilitates the positioning and installation of the sealing ring.

[0038] In an optional embodiment, the heating base further includes a surface cover and an electric control component, the surface cover is fixed to the upper side of the support ring, and the electric control component is fixedly connected to the support ring.

[0039] Beneficial effect: The setting of the face cover is convenient for users to operate.

[0040] In an optional implementation, the surface cover and the support ring are fixed by buckles and / or screws.

[0041] Beneficial effect: The face cover and the support ring are fixed by buckles and / or screws, which can ensure a stable connection between the face cover and the support ring.

[0042] In a second aspect, the present invention further provides a household appliance, comprising:

[0043] The heating base.

[0044] Beneficial effect: When the household appliance is working, the heating component heats up, and the fan works, so that the cooling airflow enters the air inlet duct from the air inlet, and reaches the heating component after passing through the air inlet duct. The cooling airflow carries the heat emitted by the heating component and becomes a hot airflow, which enters the air outlet duct and is discharged from the air outlet. Therefore, the heating base can take away the heat of the heating component in time by setting the air inlet duct, the air outlet duct and the fan, and prevent the internal temperature of the heating base from being too high, causing deformation or even fire. In addition, since the heat of the heating component can be taken away in time, the power of the heating component can be increased, and water can be boiled or food can be heated quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 An exploded view of a heating base according to an embodiment of the present invention;

[0047] Figure 2 A cross-sectional view of a heating base at a cross section according to an embodiment of the present invention;

[0048] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0049] Figure 4 A cross-sectional view of a heating base according to an embodiment of the present invention at another cross-sectional plane;

[0050] Figure 5 A cross-sectional view of a heating base according to an embodiment of the present invention when a support ring and a surface cover are not installed;

[0051] Figure 6 A three-dimensional cross-sectional view of a heating base according to an embodiment of the present invention when a support ring and a surface cover are not installed;

[0052] Figure 7 for Figure 6 The enlarged view of point B in the middle;

[0053] Figure 8 for Figure 6 Enlarged view of point C in the middle;

[0054] Fig. 9 is a schematic diagram of the structure of the bottom cover;

[0055] Fig.10 This is a schematic diagram of the back of the bottom cover.

[0056] Description of reference numerals:

[0057] 1. Base; 101. Bottom annular surface; 102. Second through hole; 103. Second air outlet; 2. Bottom cover; 201. Air inlet; 202. First air outlet; 203. Convex rib; 204. Support foot; 3. Heating component; 4. Fan; 5. Fixing frame; 501. Air hole; 502. First rib; 503. Barrier rib; 504. First through hole; 505. Step; 6. Support ring; 601. First annular pressing part; 602. Second annular pressing part; 7. Microcrystalline board; 8. Sealing ring; 9. Surface cover; 10. Electronic control component. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0059] The base power of household appliances with heating function, such as electric kettles, is generally small, which cannot meet the user's demand for quick boiling of water. If the power is large, long-term use may easily cause the base to overheat, resulting in deformation or even fire.

[0060] Combine the following Figures 1 to 10 , describing an embodiment of the present invention.

[0061] According to an embodiment of the present invention, on the one hand, a heating base is provided, including a base assembly, a heating assembly 3 , a heat dissipation duct and a fan 4 .

[0062] Among them, the base component has an air inlet 201 and an air outlet; the heating component 3 is arranged in the base 1; the heat dissipation air duct includes an air inlet duct connecting the air inlet 201 and the heating component 3, and an air outlet duct connecting the air outlet and the heating component 3; the fan 4 is arranged in the air inlet duct.

[0063] In this embodiment, when the heating base is working, the heating component 3 generates heat, and the fan 4 works, so that the cooling airflow enters the air inlet duct from the air inlet 201, and reaches the heating component 3 after passing through the air inlet duct. The cooling airflow carries the heat emitted by the heating component 3 and becomes a hot airflow, which enters the air outlet duct and is discharged from the air outlet. Therefore, the heating base can take away the heat of the heating component 3 in time by setting the air inlet duct, the air outlet duct and the fan 4, so as to prevent the internal temperature of the heating base from being too high, causing deformation or even fire. In addition, since the heat of the heating component 3 can be taken away in time, the power of the heating component 3 can be increased, so as to achieve rapid boiling of water or heating of food.

[0064] Specifically in one embodiment, the heating component 3 is a radiation disk.

[0065] In one embodiment, the air inlet 201 is arranged at the bottom of the base assembly, the heating base also includes a fixing frame 5, the heating assembly 3 is arranged on the fixing frame 5, the fixing frame 5 is provided with an air hole 501 connected to the air inlet 201, and the fixing frame 5 cooperates with the base assembly to form an air inlet duct.

[0066] In this embodiment, by setting up the fixing frame 5, it is convenient to install the heating component 3 and to form an air inlet duct. The fixing frame 5 is provided with an air hole 501 connected to the air inlet 201. The fixing frame 5 cooperates with the base assembly to form an air inlet duct. When the fan 4 is working, the cooling air flow enters from the air inlet 201 at the bottom, then flows upward, passes through the inside of the fixing frame 5, and then flows to the heating component 3 through the air hole 501. The cooling air flow carries the heat dissipated by the heating component 3 and becomes a hot air flow. The hot air flow enters the air outlet duct and is discharged from the air outlet.

[0067] Specifically in one embodiment, the heating assembly 3 is placed inside the fixing frame 5 .

[0068] In one embodiment, the fan 4 is disposed between the air inlet 201 and the air hole 501 .

[0069] In this embodiment, the fan 4 is disposed between the air inlet 201 and the air hole 501 , and can effectively drive the air flow, so that the external cooling air flows into the air inlet duct through the air inlet 201 and flows to the heating component 3 through the air hole 501 .

[0070] Specifically in one embodiment, the fan 4 is installed on a fan 4 bracket, and the fan 4 bracket is connected to the bottom of the fixing frame 5 by screws.

[0071] In one embodiment, a first rib 502 is disposed at the bottom of the fixing frame 5 , the first rib 502 is in contact with the bottom of the base assembly, and the first rib 502 surrounds the air inlet 201 and the air hole 501 .

[0072] In this embodiment, a first rib 502 is provided at the bottom of the fixing frame 5, and the first rib 502 contacts the bottom of the base assembly. The first rib 502 surrounds the air inlet 201 and the air hole 501, and the inner side of the first rib 502 forms a part of the air inlet duct, which can prevent the cooling airflow sucked in by the fan 4 from escaping.

[0073] In one embodiment, the air hole 501 is provided with a plurality of blocking ribs 503 .

[0074] In this embodiment, a plurality of blocking ribs 503 are provided at the air hole 501. The blocking ribs 503 play a heat insulation role, which can prevent the heat of the heat generating component from being transferred to the fan 4, causing the chip of the fan 4 to overheat and fail to work normally. In addition, the provision of the blocking ribs 503 does not affect the air flow through the air hole 501.

[0075] In one embodiment, the arrangement of the barrier ribs 503 is adapted to the shape of the fan 4 support.

[0076] In this embodiment, since the arrangement of the blocking ribs 503 is adapted to the shape of the fan 4 bracket, it can be ensured that the setting of the blocking ribs 503 does not affect the airflow through the air hole 501, and can effectively play a heat insulating role, thereby preventing the heat of the heating component from being transferred to the fan 4, causing the chip of the fan 4 to overheat and fail to work normally.

[0077] In one embodiment, a first through hole 504 is provided on the side of the fixing frame 5, and a second rib is provided on the outer wall of the fixing frame 5 and / or the inner wall of the base assembly. The second rib, the fixing frame 5 and the base assembly form an air outlet duct.

[0078] In this embodiment, the second ribs, the fixing frame 5 and the base assembly form an air outlet duct, which can limit the hot air flow in the air outlet duct to prevent heat from dissipating to the electric control board assembly, causing the controller temperature to rise and fail to work normally.

[0079] In one embodiment, first through holes 504 are provided on both sides of the fixing frame 5. In one embodiment, second ribs are provided on the outer side of the fixing frame 5 and the inner side of the base 1, and the second ribs on the fixing frame 5 match the second ribs on the base 1.

[0080] Specifically, in one embodiment, the second ribs are only provided on the outer wall of the fixing frame 5 , and the second ribs abut against the inner side of the base 1 .

[0081] Specifically, in one embodiment, only the second ribs are provided on the inner side of the base 1 , and the second ribs abut against the outer wall of the fixing frame 5 .

[0082] In one embodiment, the base assembly includes a base 1 and a bottom cover 2 , the bottom cover 2 is connected to the bottom of the base 1 , and the air inlet 201 is disposed on the bottom cover 2 .

[0083] In this embodiment, the base assembly includes a base 1 and a bottom cover 2. During assembly, after the base 1 and the fixing frame 5 are assembled, the fan 4 can be installed at the bottom of the fixing frame 5, and then the bottom cover 2 can be connected to the bottom of the base 1 to facilitate the assembly of the entire heating base.

[0084] Specifically in one embodiment, the air inlet 201 is disposed at the center of the bottom cover 2 , and a grille is disposed at the air inlet 201 .

[0085] Specifically in one embodiment, the bottom cover 2 is fixed to the base 1 by screws. During assembly, the fan 4 is first fixed to the bottom of the fixing frame 5, the base 1 is put on the fixing frame 5 and fixed to the support ring 6 by screws, and then the bottom cover 2 is installed on the bottom of the base 1 by screws.

[0086] In one embodiment, the air outlet includes a first air outlet 202 disposed on the bottom cover 2 , and a convex rib 203 is disposed on the lower surface of the bottom cover 2 , and the convex rib 203 separates the air inlet 201 and the first air outlet 202 .

[0087] In this embodiment, since the bottom cover 2 is provided with both the air inlet 201 and the first air outlet 202 , the convex rib 203 separates the air inlet 201 and the first air outlet 202 , thereby preventing the fan 4 from inhaling the hot air flow discharged from the first air outlet 202 .

[0088] Specifically in one embodiment, the first air outlet 202 is arranged on both sides of the bottom cover 2, the air inlet 201 is arranged at the center of the bottom cover 2, and two convex ribs 203 are provided, each of which is located between the first air outlet 202 and the air inlet 201.

[0089] Specifically in one embodiment, four supporting feet 204 are provided on the lower surface of the bottom cover 2 , and both ends of the convex rib 203 are connected to the supporting feet 204 . When the supporting feet 204 are in contact with the ground, the convex rib 203 is also in contact with the ground.

[0090] In one embodiment, the base 1 includes a bottom annular surface 101 , the bottom of the fixing frame 5 is supported on the bottom annular surface 101 , and the bottom annular surface 101 is provided with a second through hole 102 at a position above the first air outlet 202 .

[0091] In this embodiment, the setting of the bottom annular surface 101 facilitates the positioning and installation of the fixing frame 5. By setting the second through hole 102 on the bottom annular surface 101, the hot air flow flows out from the first through hole 504 of the fixing frame 5 and enters the air outlet duct, and then flows to the first air outlet 202 through the second through hole 102.

[0092] Specifically in one embodiment, when the fan 4 is working, the cooling airflow enters from the bottom air inlet 201, then flows upward, first passes through the center of the bottom annular surface 101, then passes through the inside of the fixing frame 5, and finally passes through the air hole 501 to flow to the heating component 3. The cooling airflow carries the heat dissipated by the heating component 3 and becomes a hot airflow. The hot airflow enters the air outlet duct and is discharged from the air outlet.

[0093] In one embodiment, the air outlet further includes a second air outlet 103 disposed on a side of the base 1 .

[0094] In this embodiment, the air outlet further includes a second air outlet 103 disposed on the side of the base 1 , so that the hot air flow can flow out from the first air outlet 202 and the second air outlet 103 at the same time, which can improve the heat dissipation efficiency of the heating base.

[0095] Specifically in one embodiment, the second air outlets 103 are disposed on both sides of the base 1 .

[0096] Specifically in one embodiment, the second air outlet 103 is a strip-shaped hole.

[0097] In one embodiment, the heating base further includes a support ring 6 and a microcrystalline plate 7. The microcrystalline plate 7 is disposed above the heating component 3. The support ring 6 is fixedly connected to the fixing frame 5 and is sealed to the edge of the microcrystalline plate 7 via a sealing ring 8.

[0098] In this embodiment, a kettle or other cooking utensils that need to be heated can be placed on the microcrystalline board 7. The support ring 6 is fixedly connected to the fixing frame 5 and sealed to the edge of the microcrystalline board 7 to prevent water from entering the interior of the heating base through the edge of the microcrystalline board 7.

[0099] Specifically in one embodiment, the fixing frame 5 and the supporting ring 6 are connected by screws.

[0100] In one embodiment, a step portion 505 is provided in the fixing frame 5 , the microcrystalline board 7 is supported on the step portion 505 , and the support ring 6 and the step portion 505 clamp the microcrystalline board 7 in the middle.

[0101] In this embodiment, the microcrystalline board 7 is supported on the step portion 505 , and the support ring 6 and the step portion 505 clamp the microcrystalline board 7 in the middle. The fixing method of the microcrystalline board 7 is simple and convenient, and there is no need to drill holes in the microcrystalline board 7 .

[0102] In one embodiment, a first annular pressing portion 601 and a second annular pressing portion 602 are provided at the lower end of the support ring 6, the lower end of the second annular pressing portion 602 is higher than the lower end of the first annular pressing portion 601, the second annular pressing portion 602 is located on the inner side of the first annular pressing portion 601, the second annular pressing portion 602 presses against the upper side of the microcrystalline plate 7, and the first annular pressing portion 601 surrounds the microcrystalline plate 7.

[0103] In this embodiment, the second annular pressing portion 602 presses against the upper side of the microcrystalline board 7, the first annular pressing portion 601 surrounds the microcrystalline board 7, the second annular pressing portion 602 and the step portion 505 cooperate to limit and fix the microcrystalline board 7 in the up and down directions, and the first annular pressing portion 601 limits and fixes the microcrystalline board 7 in the circumferential direction, so the microcrystalline board 7 can be fixed in all directions.

[0104] Specifically in one embodiment, the first annular pressing portion 601 presses against the step portion 505 .

[0105] In one embodiment, a sealing groove is formed between the first annular pressing portion 601 and the second annular pressing portion 602 , and a portion of the sealing ring 8 is embedded in the sealing groove.

[0106] In this embodiment, a sealing groove is formed between the first annular pressing portion 601 and the second annular pressing portion 602 , and a portion of the sealing ring 8 is embedded in the sealing groove, so as to facilitate the positioning and installation of the sealing ring 8 .

[0107] Of course, in other alternative embodiments, the sealing groove may not be provided, and the sealing ring 8 is located between the second annular pressing portion 602 and the microcrystalline plate 7 .

[0108] In one embodiment, the heating base further includes a surface cover 9 and an electric control component 10 . The surface cover 9 is fixed to the upper side of the support ring 6 , and the electric control component 10 is fixedly connected to the support ring 6 .

[0109] In this embodiment, the arrangement of the face cover 9 is convenient for the user to operate.

[0110] Specifically in one embodiment, the electric control assembly 10 includes a controller bracket, a controller, a display panel bracket, a display panel and a touch spring.

[0111] In one embodiment, the surface cover 9 and the support ring 6 are fixed by buckles and / or screws.

[0112] In this embodiment, the surface cover 9 and the support ring 6 are fixed by buckles and / or screws, which can ensure a stable connection between the surface cover 9 and the support ring 6.

[0113] Specifically in one embodiment, the surface cover 9 and the support ring 6 are pre-assembled and fixed by buckles, and then fixed by screws.

[0114] Specifically in one embodiment, the electric control component 10 is connected to the support ring 6 by screws.

[0115] When the heating base provided in this embodiment is working, the heating component 3 generates heat, and the fan 4 sucks in the cooling airflow from the bottom and blows it toward the heating component 3. The cooling airflow passes through the air inlet 201 at the center of the bottom cover 2, the center of the bottom annular surface 101 of the base 1, and the air holes 501 of the fixing frame 5 in sequence to reach the heating component 3. Then the hot air flow is discharged through the air outlet ducts on the left and right sides. After the hot air flow passes through the first through holes 504 on both sides of the fixing frame 5, a part of it is discharged through the second air outlet 103 on both sides of the base 1, and a part of it flows through the second through holes 102 on the bottom annular surface 101 and is discharged from the first air outlet 202 on both sides of the bottom cover 2, thereby discharging the hot air flow from the inside of the heating base to reduce the internal temperature.

[0116] According to an embodiment of the present invention, on the other hand, a household appliance is provided, comprising: the heating base provided in the above embodiment.

[0117] When the household appliance is working, the heating component 3 generates heat, and the fan 4 works, so that the cooling airflow enters the air inlet duct from the air inlet 201, and reaches the heating component 3 after passing through the air inlet duct. The cooling airflow carries the heat emitted by the heating component 3 and becomes a hot airflow, which enters the air outlet duct and is discharged from the air outlet. Therefore, the heating base can take away the heat of the heating component 3 in time by setting the air inlet duct, the air outlet duct and the fan 4, so as to prevent the internal temperature of the heating base from being too high, causing deformation or even fire. In addition, since the heat of the heating component 3 can be taken away in time, the power of the heating component 3 can be increased, so as to achieve rapid boiling of water or heating of food.

[0118] Specifically in one embodiment, the household appliance is an electric kettle.

[0119] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present application.

Claims

1. A heating base, characterized in that: include: A base assembly having an air inlet (201) and an air outlet; A heating component (3) is arranged in the base (1); A heat dissipation air duct, comprising an air inlet air duct connecting the air inlet (201) and the heating component (3), and an air outlet air duct connecting the air outlet and the heating component (3); A fan (4) is arranged in the air inlet duct.

2. The heating base according to claim 1, characterized in that: The air inlet (201) is arranged at the bottom of the base assembly, the heating base also includes a fixing frame (5), the heating assembly (3) is arranged on the fixing frame (5), the fixing frame (5) is provided with an air hole (501) connected to the air inlet (201), and the fixing frame (5) cooperates with the base assembly to form the air inlet duct.

3. The heating base according to claim 2, characterized in that: The fan (4) is arranged between the air inlet (201) and the air hole (501).

4. The heating base according to claim 2, characterized in that: A first rib (502) is provided at the bottom of the fixing frame (5), the first rib (502) is in contact with the bottom of the base assembly, and the first rib (502) surrounds the air inlet (201) and the air hole (501).

5. The heating base according to claim 2, characterized in that: The air passage (501) is provided with a plurality of blocking ribs (503).

6. The heating base according to claim 5, characterized in that: The arrangement of the barrier ribs (503) is adapted to the shape of the fan (4) bracket.

7. The heating base according to any one of claims 2 to 6, characterized in that A first through hole (504) is provided on the side of the fixing frame (5), and a second rib is provided on the outer wall of the fixing frame (5) and / or the inner wall of the base assembly. The second rib, the fixing frame (5) and the base assembly form the air outlet duct.

8. The heating base according to any one of claims 2 to 6, characterized in that The base assembly comprises a base (1) and a bottom cover (2), wherein the bottom cover (2) is connected to the bottom of the base (1), and the air inlet (201) is arranged on the bottom cover (2).

9. The heating base according to claim 8, characterized in that: The air outlet comprises a first air outlet (202) arranged on the bottom cover (2), and a convex rib (203) is provided on the lower surface of the bottom cover (2), and the convex rib (203) separates the air inlet (201) and the first air outlet (202).

10. The heating base according to claim 9, characterized in that The base (1) comprises a bottom annular surface (101), the bottom of the fixing frame (5) is supported on the bottom annular surface (101), and the bottom annular surface (101) is provided with a second through hole (102) at a position above the first air outlet (202).

11. The heating base according to claim 8, characterized in that The air outlet further comprises a second air outlet (103) arranged on the side of the base (1).

12. The heating base according to any one of claims 2 to 6 and 9 to 11, characterized in that The heating base further comprises a support ring (6) and a microcrystalline plate (7); the microcrystalline plate (7) is arranged above the heating component (3); the support ring (6) is fixedly connected to the fixing frame (5) and is sealed to the edge of the microcrystalline plate (7) via a sealing ring (8).

13. The heating base according to claim 12, characterized in that A step portion (505) is provided in the fixing frame (5), the microcrystalline plate (7) is supported on the step portion (505), and the support ring (6) and the step portion (505) clamp the microcrystalline plate (7) in the middle.

14. The heating base according to claim 13, characterized in that The lower end of the support ring (6) is provided with a first annular pressing portion (601) and a second annular pressing portion (602), the lower end of the second annular pressing portion (602) is higher than the lower end of the first annular pressing portion (601), the second annular pressing portion (602) is located on the inner side of the first annular pressing portion (601), the second annular pressing portion (602) presses against the upper side of the microcrystalline plate (7), and the first annular pressing portion (601) surrounds the microcrystalline plate (7).

15. The heating base according to claim 14, characterized in that A sealing groove is formed between the first annular pressing portion (601) and the second annular pressing portion (602), and a portion of the sealing ring (8) is embedded in the sealing groove.

16. The heating base according to claim 12, characterized in that The heating base further comprises a surface cover (9) and an electric control component (10); the surface cover (9) is fixed to the upper side of the support ring (6); and the electric control component (10) is fixedly connected to the support ring (6).

17. The heating base according to claim 16, characterized in that The surface cover (9) and the support ring (6) are fixed by means of buckles and / or screws.

18. A household appliance, characterized in that: include: A heating base as claimed in any one of claims 1 to 17.

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