Heating base and household appliance

Abstract

The utility model 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 assembly; 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 the 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 utility model relates to domestic appliance technical field, concretely relates to heating base and domestic appliance. BACKGROUND

[0002] The base power of domestic appliance with heating function such as electric kettle is generally smaller, and the smaller power cannot satisfy the demand of user's fast boiling water, and if the power is larger, long-time use can easily make the base overheat and deform or even catch fire. SUMMARY

[0003] Therefore, the utility model provides a kind of heating base and domestic appliance to solve the problem that base is easily overheated.

[0004] In a first aspect, the utility model provides a kind of heating base, comprising:

[0005] Base assembly has air inlet and air outlet;

[0006] Heating assembly is located in the base assembly;

[0007] Radiator air duct, including the air inlet and the heating assembly of the air inlet of intercommunication, and the air outlet and the heating assembly of the air outlet of intercommunication;

[0008] Fan, located in the air inlet.

[0009] Beneficial effect: when the heating base works, heating assembly generates heat, fan works, and cooling airflow enters air inlet, reaches heating assembly after passing through air inlet, and cooling airflow becomes hot airflow after carrying the heat emitted by heating assembly, and hot airflow enters air outlet and is discharged from air outlet. Therefore, the heating base, by setting air inlet, air outlet and fan, can carry away the heat of heating assembly in time, prevent internal temperature of heating base from being too high to cause deformation or even fire, and additionally, since the heat of heating assembly can be carried away in time, the power of heating assembly can be improved, to realize fast boiling water or heating food.

[0010] In an alternative embodiment, the air inlet is provided at the bottom of the base assembly, and the heating base further comprises a fixing frame, the heating assembly is arranged in the fixing frame, the fixing frame is provided with a wind hole communicated with the air inlet, and the fixing frame and the base assembly cooperate to form the air inlet.

[0011] Beneficial effects: By setting the fixing frame, the installation of the heating assembly is facilitated, and the air inlet air duct is formed. The fixing frame is provided with a wind passing hole communicated with the air inlet. The fixing frame cooperates with the base assembly to form the air inlet air duct. When the fan works, the cooling airflow enters from the air inlet at the bottom, then flows upwards, passes through the inside of the fixing frame, and then flows to the heating assembly through the wind passing hole. The cooling airflow becomes hot airflow after carrying the heat emitted by the heating assembly, and the hot airflow enters the air outlet air duct and is discharged from the air outlet.

[0012] In an alternative embodiment, the fan is arranged between the air inlet and the wind passing hole.

[0013] Beneficial effects: The fan is arranged between the air inlet and the wind passing hole, which can effectively drive the airflow to flow, so that the external cooling airflow enters the air inlet air duct through the air inlet and flows to the heating assembly through the wind passing hole.

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

[0015] Beneficial effects: The bottom of the fixing frame is provided with the first surrounding rib, which is in contact with the bottom of the base assembly, and the first surrounding rib surrounds the air inlet and the wind passing hole. The inside of the first surrounding rib forms part of the air inlet air duct, which can prevent the cooling airflow sucked by the fan from escaping.

[0016] In an alternative embodiment, the wind passing hole is provided with a plurality of blocking ribs.

[0017] Beneficial effects: By arranging a plurality of blocking ribs in the wind passing hole, the blocking ribs can play a heat insulation role, which can prevent the heat of the heating assembly from being transmitted to the fan, causing the chip of the fan to overheat and unable to work normally. Moreover, the arrangement of the blocking ribs does not affect the airflow flowing through the wind passing hole.

[0018] In an alternative embodiment, the arrangement of the blocking ribs is adapted to the shape of the fan support.

[0019] Beneficial effects: Since the arrangement of the blocking ribs is adapted to the shape of the fan support, it can be ensured that the arrangement of the blocking ribs does not affect the airflow flowing through the wind passing hole, and can effectively play a heat insulation role, which can prevent the heat of the heating assembly from being transmitted to the fan, causing the chip of the fan to overheat and unable to work normally.

[0020] In an alternative embodiment, the side of the fixing frame is provided with a first through hole, and the outer wall of the fixing frame and / or the inner wall of the base assembly is provided with a second surrounding rib, which surrounds the air outlet air duct together with the fixing frame and the base assembly.

[0021] Beneficial effect: the second surrounding muscle and the fixed frame, the base assembly surrounds the air outlet air duct, can limit the hot air flow in the air outlet air duct, avoid heat dissipation to the electric control panel assembly, cause the controller temperature to rise unable normal work.

[0022] In an alternative embodiment, the base assembly comprises a base and a bottom cover, the bottom cover is connected to the bottom of the base, and the air inlet is provided on the bottom cover.

[0023] Beneficial effect: the base assembly comprises a base and a bottom cover, which can be assembled after the base and the fixed frame are assembled, and then the bottom cover is connected to the bottom of the base, which is convenient for the assembly of the whole heating base.

[0024] In an alternative embodiment, the air outlet comprises a first air outlet provided on the bottom cover, and the lower surface of the bottom cover is provided with a convex rib, which separates the air inlet and the first air outlet.

[0025] Beneficial effect: since the bottom cover is provided with the air inlet and the first air outlet at the same time, and the convex rib separates the air inlet and the first air outlet, it can avoid the fan inhaling the hot air flow discharged from the first air outlet.

[0026] In an alternative embodiment, the base comprises a bottom annular surface, the bottom of the fixed 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 fixed frame, and by setting the second through hole on the bottom annular surface, the hot air flow flows out of the first through hole of the fixed frame and then enters the air outlet air duct, and then flows to the first air outlet through the second through hole.

[0028] In an alternative embodiment, the air outlet further comprises a second air outlet provided on the side of the base.

[0029] Beneficial effect: the air outlet further comprises a second air outlet provided on the side of the base, so that the hot air flow can flow out of 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 alternative embodiment, the heating base further comprises a support ring and a microcrystalline plate, the microcrystalline plate is provided above the heating assembly, and the support ring is fixedly connected with the fixed frame and is sealingly connected with the edge of the microcrystalline plate through a sealing ring.

[0031] Beneficial effect: the microcrystalline plate can place a kettle or other cooking utensils that need to be heated, and the support ring is fixedly connected with the fixed frame and sealingly connected with the edge of the microcrystalline plate, which can prevent water from entering the inside of the heating base through the edge of the microcrystalline plate.

[0032] In an alternative embodiment, the fixing frame is provided with a stepped portion, the microcrystalline plate is supported on the stepped portion, and the support ring and the stepped portion clamp the microcrystalline plate in the middle.

[0033] Beneficial effects: The microcrystalline plate is supported on the stepped portion, and the support ring and the stepped portion clamp the microcrystalline plate in the middle. The fixing method of the microcrystalline plate is simple and convenient, and does not need to punch holes on the microcrystalline plate.

[0034] In an alternative 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 on the upper side of the microcrystalline plate, and the first annular pressing portion surrounds the microcrystalline plate.

[0035] Beneficial effects: The second annular pressing portion presses on the upper side of the microcrystalline plate, the first annular pressing portion surrounds the microcrystalline plate, the second annular pressing portion and the stepped portion cooperate to limit and fix the microcrystalline plate in the up-down direction, and the first annular pressing portion limits and fixes the microcrystalline plate in the circumferential direction, so that the microcrystalline plate can be fixed in all directions.

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

[0037] Beneficial effects: The first annular pressing portion and the second annular pressing portion form a sealing groove, and part of the sealing ring is embedded in the sealing groove, so that the positioning and installation of the sealing ring are facilitated.

[0038] In an alternative embodiment, the heating base further comprises a face cover and an electric control assembly, the face cover is fixed on the upper side of the support ring, and the electric control assembly is fixedly connected with the support ring.

[0039] Beneficial effects: The face cover is provided to facilitate the user to operate.

[0040] In an alternative embodiment, the face cover and the support ring are fixed through buckles and / or screws.

[0041] Beneficial effects: The face cover and the support ring are fixed through buckles and / or screws, so that the stable connection of the face cover and the support ring can be ensured.

[0042] In a second aspect, the utility model also provides a household appliance, which comprises:

[0043] The heating base.

[0044] Beneficial effects: When this household appliance is working, the heating element heats up, and the fan operates, causing cooling airflow to enter the air intake duct from the air inlet. After passing through the air intake duct, the cooling airflow reaches the heating element, where it carries the heat dissipated by the heating element and becomes hot airflow. The hot airflow enters the air outlet duct and is discharged from the air outlet. Therefore, this heating base, by incorporating air intake and exhaust ducts and a fan, can promptly remove heat from the heating element, preventing the internal temperature of the heating base from becoming too high, which could lead to deformation or even fire. Furthermore, because it can promptly remove heat from the heating element, its power can be increased, enabling rapid boiling of water or heating of food. Attached Figure Description

[0045] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

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

[0047] Figure 2 This is a cross-sectional view of a heating base according to an embodiment of the present invention.

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

[0049] Figure 4 This is a cross-sectional view of a heating base according to an embodiment of the present invention from another section.

[0050] Figure 5 This is a cross-sectional view of a heating base without the support ring and cover installed according to an embodiment of the present invention;

[0051] Figure 6 This is a perspective sectional view of a heating base without the support ring and cover installed according to an embodiment of the present invention;

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

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

[0054] Figure 9 This is a schematic diagram of the bottom cover structure;

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

[0056] BRIEF DESCRIPTION OF DRAWINGS

[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, foot; 3, heating assembly; 4, fan; 5, fixing frame; 501, air passing hole; 502, first enclosing rib; 503, blocking rib; 504, first through hole; 505, step portion; 6, supporting ring; 601, first annular pressing portion; 602, second annular pressing portion; 7, microcrystalline plate; 8, sealing ring; 9, surface cover; 10, electric control assembly. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0059] The base of a household electrical appliance with a heating function, such as an electric kettle, generally has a relatively small power. A small power cannot meet the user's demand for fast water boiling, and a large power can easily cause the base to overheat and deform or even catch fire after long-time use.

[0060] The embodiments of the present application will be described below in conjunction with Figures 1 to 10 .

[0061] According to the embodiments of the present application, on the one hand, a heating base is provided, which comprises a base assembly, a heating assembly 3, a heat dissipation air duct and a fan 4.

[0062] The base assembly has an air inlet 201 and an air outlet; the heating assembly 3 is arranged in the base assembly; the heat dissipation air duct comprises an air inlet duct communicating with the air inlet 201 and the heating assembly 3, and an air outlet duct communicating with the air outlet and the heating assembly 3; and the fan 4 is arranged in the air inlet duct.

[0063] In this embodiment, when the heating base works, the heating assembly 3 generates heat, and the fan 4 works to make the cooling air flow into the air inlet 201 and then to the heating assembly 3 through the air inlet channel, and the cooling air flow becomes hot air flow after carrying the heat generated by the heating assembly 3, and the hot air flow enters the air outlet channel and is discharged from the air outlet. Therefore, the heating base can timely take away the heat of the heating assembly 3 through the air inlet channel, the air outlet channel and the fan 4, so as to prevent the internal temperature of the heating base from being too high to cause deformation or even fire, and in addition, the power of the heating assembly 3 can be improved to realize rapid water boiling or food heating.

[0064] In a specific embodiment, the heating assembly 3 is a radiation disc.

[0065] In an embodiment, the air inlet 201 is arranged at the bottom of the base assembly, and the heating base further comprises a fixing frame 5, the heating assembly 3 is arranged in the fixing frame 5, the fixing frame 5 is provided with a wind passing hole 501 in communication with the air inlet 201, and the fixing frame 5 cooperates with the base assembly to form the air inlet channel.

[0066] In this embodiment, the fixing frame 5 is arranged to facilitate the installation of the heating assembly 3 and the formation of the air inlet channel, the fixing frame 5 is provided with the wind passing hole 501 in communication with the air inlet 201, the fixing frame 5 cooperates with the base assembly to form the air inlet channel, and when the fan 4 works, 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, then flows to the heating assembly 3 through the wind passing hole 501, the cooling air flow becomes hot air flow after carrying the heat generated by the heating assembly 3, the hot air flow enters the air outlet channel and is discharged from the air outlet.

[0067] In a specific embodiment, the heating assembly 3 is arranged in the inside of the fixing frame 5.

[0068] In an embodiment, the fan 4 is arranged between the air inlet 201 and the wind passing hole 501.

[0069] In this embodiment, the fan 4 is arranged between the air inlet 201 and the wind passing hole 501, which can effectively drive the air flow to flow, so that the external cooling air flow enters the air inlet channel through the air inlet 201 and then flows to the heating assembly 3 through the wind passing hole 501.

[0070] In a specific embodiment, the fan 4 is installed on the fan 4 support, and the fan 4 support is connected with the bottom of the fixing frame 5 through screws.

[0071] In an embodiment, the bottom of the fixing frame 5 is provided with a first surrounding rib 502, the first surrounding rib 502 is in contact with the bottom of the base assembly, and the first surrounding rib 502 surrounds the air inlet 201 and the wind passing hole 501.

[0072] In this embodiment, the bottom of the fixing frame 5 is provided with a first rim 502, which is in contact with the bottom of the base assembly, surrounds the air inlet 201 and the air passing hole 501, and forms part of the air inlet channel on the inner side of the first rim 502, so as to avoid the cooling air flow sucked by the fan 4 from escaping.

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

[0074] In this embodiment, by arranging the blocking ribs 503 on the air passing hole 501, the blocking ribs 503 can play a heat insulation role, so as to avoid the heat of the heat generating assembly from being transmitted to the fan 4, causing the chip of the fan 4 to overheat and fail to work normally. Moreover, the arrangement of the blocking ribs 503 does not affect the air flow through the air passing hole 501.

[0075] In one embodiment, the arrangement of the blocking 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 support, it can be ensured that the arrangement of the blocking ribs 503 does not affect the air flow through the air passing hole 501, and can effectively play a heat insulation role, so as to avoid the heat of the heat generating assembly from being transmitted to the fan 4, causing the chip of the fan 4 to overheat and fail to work normally.

[0077] In one embodiment, the side of the fixing frame 5 is provided with a first through hole 504, and the outer wall of the fixing frame 5 and / or the inner wall of the base assembly is provided with a second rim, which surrounds the air outlet channel together with the fixing frame 5 and the base assembly.

[0078] In this embodiment, the second rim surrounds the air outlet channel together with the fixing frame 5 and the base assembly, so as to confine the hot air flow in the air outlet channel and avoid the heat from escaping to the electric control panel assembly, causing the temperature of the controller to rise and fail to work normally.

[0079] Specifically, in one embodiment, the two sides of the fixing frame 5 are provided with the first through hole 504. Specifically, in one embodiment, the outer side of the fixing frame 5 and the inner side of the base 1 are provided with the second rim, and the second rim on the fixing frame 5 cooperates with the second rim on the base 1.

[0080] Specifically, in one embodiment, the second rim is arranged only on the outer wall of the fixing frame 5, and abuts against the inner side of the base 1.

[0081] Specifically, in one embodiment, the second rim is arranged only on the inner side of the base 1, and abuts against the outer wall of the fixing frame 5.

[0082] In one embodiment, the base assembly comprises 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 arranged on the bottom cover 2.

[0083] In this embodiment, the base assembly comprises the base 1 and the bottom cover 2. When assembling, the fan 4 can be assembled at the bottom of the fixing frame 5 after the base 1 and the fixing frame 5 are assembled, and then the bottom cover 2 is connected to the bottom of the base 1, facilitating the assembly of the entire heating base.

[0084] Specifically, in an embodiment, the air inlet 201 is arranged at the center of the bottom cover 2, and the air inlet 201 is provided with a grille.

[0085] Specifically, in an embodiment, the bottom cover 2 is fixed with the base 1 by screws. When assembling, the fan 4 is first fixed at the bottom of the fixing frame 5, the base 1 is sleeved on the fixing frame 5 and fixed with the supporting ring 6 by screws, and then the bottom cover 2 is assembled at the bottom of the base 1 by screws.

[0086] In an embodiment, the air outlet comprises a first air outlet 202 arranged on the bottom cover 2, and the lower surface of the bottom cover 2 is provided with a convex rib 203, which separates the air inlet 201 and the first air outlet 202.

[0087] In this embodiment, since the air inlet 201 and the first air outlet 202 are arranged on the bottom cover 2, and the convex rib 203 separates the air inlet 201 and the first air outlet 202, the fan 4 can avoid inhaling the hot air flow discharged from the first air outlet 202.

[0088] Specifically, in an 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 the convex rib 203 is provided with two convex ribs, and each convex rib 203 is located between the first air outlet 202 and the air inlet 201.

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

[0090] In an embodiment, the base 1 comprises a bottom annular surface 101, and the bottom of the fixing frame 5 is supported on the bottom annular surface 101. 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 bottom annular surface 101 facilitates the positioning and installation of the fixing frame 5. By arranging the second through hole 102 on the bottom annular surface 101, the hot air flow flows out of the first through hole 504 of the fixing frame 5 and then 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 air flow enters from the bottom air inlet 201, then flows upwards, first passes through the center of the bottom annular surface 101, then passes through the inside of the fixed frame 5, and finally flows to the heating assembly 3 through the air passing hole 501. The cooling air flow becomes hot air flow after carrying the heat emitted by the heating assembly 3, and the hot air flow enters the air outlet duct and is discharged from the air outlet.

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

[0094] In this embodiment, the air outlet further comprises a second air outlet 103 arranged 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 two sides of the base 1 are each provided with a second air outlet 103.

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

[0097] In one embodiment, the heating base further comprises a support ring 6 and a microcrystalline plate 7, the microcrystalline plate 7 is arranged above the heating assembly 3, and the support ring 6 is fixedly connected with the fixed frame 5 and is sealingly connected with the edge of the microcrystalline plate 7 through a sealing ring 8.

[0098] In this embodiment, the water kettle or other cooking utensils that need to be heated can be placed on the microcrystalline plate 7, and the support ring 6 is fixedly connected with the fixed frame 5 and sealingly connected with the edge of the microcrystalline plate 7, which can prevent water from entering the inside of the heating base through the edge of the microcrystalline plate 7.

[0099] Specifically in one embodiment, the fixed frame 5 is connected with the support ring 6 through a screw.

[0100] In one embodiment, the fixed frame 5 is provided with a stepped portion 505, the microcrystalline plate 7 is supported on the stepped portion 505, and the support ring 6 and the stepped portion 505 clamp the microcrystalline plate 7 in the middle.

[0101] In this embodiment, the microcrystalline plate 7 is supported on the stepped portion 505, and the support ring 6 and the stepped portion 505 clamp the microcrystalline plate 7 in the middle, so that the fixing mode of the microcrystalline plate 7 is simple and convenient, and there is no need to punch holes on the microcrystalline plate 7.

[0102] In one embodiment, 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 on 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 part 602 presses the upper side of the microcrystalline plate 7, and the first annular pressing part 601 surrounds the microcrystalline plate 7. The second annular pressing part 602 and the stepped part 505 cooperate to limit and fix the up-down direction of the microcrystalline plate 7, and the first annular pressing part 601 limits and fixes the circumferential direction of the microcrystalline plate 7, so that the microcrystalline plate 7 can be fixed in all directions.

[0104] Specifically, in an embodiment, the first annular pressing part 601 presses the stepped part 505.

[0105] In an embodiment, a sealing groove is formed between the first annular pressing part 601 and the second annular pressing part 602, and part 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 part 601 and the second annular pressing part 602, and part of the sealing ring 8 is embedded in the sealing groove, which facilitates the positioning and installation of the sealing ring 8.

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

[0108] In an embodiment, the heating base further comprises a face cover 9 and an electric control assembly 10. The face cover 9 is fixed to the upper side of the support ring 6, and the electric control assembly 10 is fixedly connected with the support ring 6.

[0109] In this embodiment, the face cover 9 is provided to facilitate user control.

[0110] Specifically, in an embodiment, the electric control assembly 10 comprises a controller support, a controller, a display panel support, a display panel, and a touch spring.

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

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

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

[0114] Specifically, in an embodiment, the electric control assembly 10 and the support ring 6 are connected by screws.

[0115] The heating base provided by the embodiment generates heat when working, the fan 4 sucks the cooling airflow from the bottom and blows it to the heating assembly 3, the cooling airflow passes through the air inlet 201 in the center of the bottom cover 2, the center of the bottom annular surface 101 of the base 1, the air passing hole 501 of the fixing frame 5 in sequence and reaches the heating assembly 3, then the hot airflow is discharged through the air outlet flue on the left and right sides, after the hot airflow passes through the first through hole 504 on the left and right sides of the fixing frame 5, part of the hot airflow is discharged through the second air outlet 103 on the left and right sides of the base 1, and part of the hot airflow flows through the second through hole 102 on the bottom annular surface 101 and is discharged from the first air outlet 202 on the left and right sides of the bottom cover 2, so that the hot airflow is discharged from the inside of the heating base and the internal temperature is reduced.

[0116] According to the embodiment of the utility model, on the other hand, a household appliance is also provided, which comprises the heating base provided in the above embodiments.

[0117] When the household appliance works, the heating assembly 3 generates heat, and the fan 4 works to make the cooling airflow enter the air inlet flue from the air inlet 201, reach the heating assembly 3 after passing through the air inlet flue, become hot airflow after carrying the heat emitted by the heating assembly 3, and enter the air outlet flue and be discharged from the air outlet. Therefore, the heating base can timely take away the heat of the heating assembly 3 by arranging the air inlet flue, the air outlet flue and the fan 4, prevents the internal temperature of the heating base from being too high to cause deformation or even fire, and in addition, the power of the heating assembly 3 can be improved to realize rapid water boiling or food heating.

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

[0119] Although the embodiments of the utility model are described in combination with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the present application.

Claims

1. A heating base, characterized in that, include: The base assembly has an air inlet (201) and an air outlet; Heating component (3) is disposed within the base assembly; The heat dissipation 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 located in the air inlet duct.

2. The heating base according to claim 1, characterized in that, The air inlet (201) is located at the bottom of the base assembly. The heating base also includes a fixing frame (5). The heating component (3) is located on the fixing frame (5). The fixing frame (5) has an air passage hole (501) that communicates with the air inlet (201). The fixing frame (5) and the base assembly cooperate to form the air inlet duct.

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

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

5. The heating base according to claim 2, characterized in that, The ventilation hole (501) is provided with several barrier 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) support.

7. The heating base according to any one of claims 2 to 6, characterized in that, The side of the fixing frame (5) is provided with a first through hole (504), and the outer wall of the fixing frame (5) and / or the inner wall of the base assembly are provided with a second surrounding rib. The second surrounding 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 includes a base (1) and a bottom cover (2), the bottom cover (2) being connected to the bottom of the base (1), and the air inlet (201) being located on the bottom cover (2).

9. The heating base according to claim 8, characterized in that, The air outlet includes a first air outlet (202) provided on the bottom cover (2). The lower surface of the bottom cover (2) is provided with a rib (203), which 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) 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).

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

12. The heating base according to any one of claims 2 to 6, 9 to 11, characterized in that, The heating base also includes a support ring (6) and a microcrystalline plate (7). The microcrystalline plate (7) is located above the heating assembly (3). The support ring (6) is fixedly connected to the fixing frame (5) and sealed to the edge of the microcrystalline plate (7) by a sealing ring (8).

13. The heating base according to claim 12, characterized in that, The fixing frame (5) has a stepped part (505) inside, the microcrystalline plate (7) is supported on the stepped part (505), and the support ring (6) and the stepped part (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 part (601) and a second annular pressing part (602). The lower end of the second annular pressing part (602) is higher than the lower end of the first annular pressing part (601). The second annular pressing part (602) is located inside the first annular pressing part (601). The second annular pressing part (602) presses against the upper side of the microcrystalline plate (7). The first annular pressing part (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 part (601) and the second annular pressing part (602), and part 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 also includes a cover (9) and an electronic control component (10). The cover (9) is fixed to the upper side of the support ring (6), and the electronic control component (10) is fixedly connected to the support ring (6).

17. The heating base according to claim 16, characterized in that, The face cover (9) is fixed to the support ring (6) by snaps and / or screws.

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

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