Base assembly and household appliance having a base assembly

Abstract

The application relates to the technical field of household appliances, and discloses a base assembly and a household appliance with the same. The base assembly comprises: a shell, an air inlet and an air outlet are formed in the shell; an electric control panel arranged in the shell; a winding disc arranged in the shell and located above the electric control panel; an air outlet device arranged in the shell and located on one side of the electric control panel, wherein a blowing port of the air outlet device faces the electric control panel; a first air duct arranged corresponding to the electric control panel, wherein the first air duct is connected with the blowing port and extends towards the electric control panel; and a second air duct located on one side of the first air duct, wherein the second air duct is connected with the blowing port, is inclined upwards along an air outlet direction of the air outlet device, and is suitable for guiding the air blown by the air outlet device to blow towards the winding disc. The base assembly can simultaneously cool the electric control panel and the winding disc, the cooling effect on the electric control panel is good, and the normal operation of the electric control panel can be ensured.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more specifically to a base assembly and a household appliance having the base assembly. Background Technology

[0002] The base assembly of a household appliance includes a housing, an air outlet device, an electronic control board, and a winding reel housed within the housing. The electronic control board and the winding reel generate heat during use. To simultaneously dissipate heat from both the electronic control board and the winding reel, related technologies include... Figure 1 As shown, the winding reel 3' is positioned above the electronic control board 2', and a diverter plate 7' is formed between the winding reel 3' and the electronic control board 2'. The air outlet device 4' is inclinedly positioned inside the housing 1' and is adapted to blow air toward the diverter plate 7'. A first air duct 5' is formed between the diverter plate 7' and the bottom wall of the housing 1', and a second air duct 6' is formed between the diverter plate 7' and the winding reel 3'. The first air duct 5' is used to dissipate heat from the electronic control board 2', and the second air duct 6' is used to dissipate heat from the winding reel 3'.

[0003] However, the air in the first air duct 5' formed by the diverter 7' is itself obtained by diverting the air through the diverter 7', and there will be some energy loss during the diversion process. Therefore, the air duct setting provided by the prior art will result in poor heat dissipation for the overall electronic control board 2' and winding coil 3', which may lead to the risk of the electronic control board 2' failing to operate normally due to excessive temperature. Summary of the Invention

[0004] In view of this, the present invention provides a base assembly and a household appliance having the base assembly to solve the problem in the related art where the base assembly has poor heat dissipation effect on the electronic control board, and there is a risk that the electronic control board may not be able to operate normally due to excessive temperature.

[0005] In a first aspect, the present invention provides a base assembly, comprising:

[0006] The outer casing has an air inlet and an air outlet.

[0007] The electronic control board is housed inside the casing.

[0008] The winding reel is located inside the housing and above the electronic control board;

[0009] The air outlet is located inside the housing and on one side of the electronic control board, with the air outlet facing the electronic control board.

[0010] The first air duct is located on the bottom wall of the outer casing and corresponds to the electronic control board. The first air duct is connected to the air outlet and extends toward the electronic control board.

[0011] The second air duct is located on the bottom wall of the housing and on one side of the first air duct. The second air duct is connected to the air outlet. Along the air outlet direction of the air outlet device, the second air duct is inclined upward, which is suitable for guiding the air blown out by the air outlet device to the winding spool.

[0012] Beneficial effects:

[0013] The base assembly of the present invention has an air outlet device disposed inside the housing, with the air outlet of the air outlet device facing the electronic control board. The air is guided to the electronic control board and the winding reel by means of a first air duct and a second air duct disposed in the same horizontal space, respectively. By such arrangement, the existing two air ducts disposed in the vertical space are transformed into two air ducts disposed in the same horizontal space. The above arrangement can reduce the wind resistance encountered by the air during the flow process, increase the air speed, and thus improve the heat dissipation efficiency of the winding reel and the electronic control board.

[0014] Meanwhile, the second air duct is located on one side of the first air duct, so the airflow blown out by the air outlet device at the side of the electronic control board can be guided to the winding reel and the metal wire of the winding reel can be cooled. It will not divert the airflow facing the electronic control board and avoid energy loss of the airflow blowing towards the electronic control board due to diversion.

[0015] Furthermore, changing the original height space setting to a setting in the same horizontal space can improve the utilization rate of space in the height direction, which in turn helps to miniaturize the base components. In addition, the fact that air is less likely to be scattered in the same horizontal space also helps to improve the efficiency of air utilization.

[0016] Therefore, the air duct distribution of the base assembly of the present invention is more reasonable, which can solve the problem of poor heat dissipation effect of the base assembly on the electronic control board in the related technology, which poses a risk of failure to operate normally due to excessive temperature of the electronic control board. It can also improve the space utilization rate in the height direction inside the shell and help to miniaturize the base assembly.

[0017] In one alternative embodiment, an air inlet is formed on the bottom wall of the housing, an air outlet is disposed above the air inlet, and a windproof protrusion is formed on the bottom wall of the housing. The middle part of the windproof protrusion surrounds the side of the air inlet away from the electronic control board, and both ends extend to the electronic control board respectively.

[0018] Beneficial effects:

[0019] With this configuration, the air outlet can drive the airflow into the housing through the air inlet, and the windproof protrusion can gather the airflow and guide it towards the direction of the electronic control board to avoid airflow loss.

[0020] In one alternative embodiment, the air outlet device includes:

[0021] The fan cover is fitted over the windproof protrusion, and an air outlet is formed on the side of the fan cover near the electronic control board.

[0022] The fan is housed inside the fan cover.

[0023] Beneficial effects:

[0024] The fan cover can be matched with the windproof protrusion, so that the airflow flowing in from the air inlet can be blown out towards the electronic control board without loss, which helps to improve the heat dissipation effect of the circuit board.

[0025] In addition, the fan cover can also change the air outlet direction of the fan so that the air inlet of the fan can face the bottom wall of the casing to increase the air inlet area, and the air outlet of the fan can face the electronic control board to directly blow air onto the heat sink of the electronic control board.

[0026] In existing technology, the airflow from the air outlet device to the electronic control board needs to be blown upward first, then transformed into horizontal airflow under the guidance of the splitter plate, and finally blown to the electronic control board. This means that this part of the airflow needs to undergo multiple turns before reaching the electronic control board, and some of the airflow will collide multiple times during the process of blowing to the electronic control board, resulting in energy loss.

[0027] The air outlet device in this embodiment has a fan cover and an air outlet formed on the side of the fan cover near the electronic control board. The airflow can blow directly onto the electronic control board without having to go through multiple turns or impacts, thus avoiding energy loss caused by turns or impacts.

[0028] Meanwhile, in this embodiment, the fan can blow air onto the control board without tilting towards it. This makes the space occupied by the air outlet device in the height direction smaller, and the distance between the coil and the bottom wall of the housing can be set smaller, making it less likely for airflow to escape. This not only makes the structure of the base assembly more compact and reduces the volume of the base assembly, but also helps to improve the efficiency of air utilization.

[0029] In one alternative implementation, the fan is horizontally positioned inside the fan shroud.

[0030] Beneficial effects:

[0031] This design allows the air outlet to occupy less space in the vertical direction, and the distance between the coil and the bottom wall of the housing can be minimized, making it less likely for airflow to escape. This not only makes the base assembly structure more compact and reduces its size, but also helps to improve the heat dissipation of the control board.

[0032] In one optional embodiment, the second air duct includes a first side air duct and a second side air duct, which are respectively disposed on both sides of the first air duct.

[0033] Beneficial effects:

[0034] The first and second side air ducts can cool the metal wires on the winding spool from both sides to avoid uneven temperature distribution on the metal wires.

[0035] In one alternative implementation, the winding reel includes:

[0036] The main body of the panel is detachably housed inside the outer casing and located above the electronic control board;

[0037] The metal wire, which is wound on the disc body, includes a first straight section and a second straight section that are parallel to each other, and an arc connecting section connecting the first straight section and the second straight section. The extension direction of the first straight section and the second straight section is parallel to the length direction of the outer shell. The first side air duct and the second side air duct are respectively adapted to blow air onto the first straight section and the second straight section.

[0038] Beneficial effects:

[0039] The housing of the base assembly is generally rectangular or rectangular with rounded corners, while the metal wire is generally wound in a waist shape on the winding spool. This makes the first and second straight sections of the waist-shaped metal wire close to the housing, which easily causes the housing to overheat. In the base assembly of this embodiment, the first side air duct and the second side air duct can dissipate heat from the first and second straight sections of the metal wire, respectively, and can dissipate heat from the part of the coil that is prone to overheating without affecting the heat dissipation of the control board.

[0040] In one alternative implementation, the disk body includes:

[0041] The winding section is formed on the upper side of the disc body, and the metal wire is wound on the winding section;

[0042] The first through hole penetrates the disk body along the thickness direction and is located below the first straight section;

[0043] The second through hole penetrates the disk body along the thickness direction and is located below the second straight section.

[0044] Beneficial effects:

[0045] The airflow from the air outlet device can pass through the first and second through holes of the disc body under the guidance of the second air duct and blow onto the metal wire.

[0046] In one alternative embodiment, two air guide ribs are formed on the bottom wall of the housing. The air guide ribs are located between the air outlet device and the electronic control board and extend along the distance between the air outlet device and the electronic control board. The two air guide ribs and the bottom wall of the housing are adapted to form a first air duct. The air guide ribs, the windproof protrusion and the bottom wall of the housing are adapted to form a second air duct.

[0047] Beneficial effects:

[0048] The first and second air ducts are formed by air guide ribs and windproof protrusions on the bottom wall of the outer shell, which simplifies the structure of the air ducts and eliminates the need to add parts inside the outer shell, thus facilitating the miniaturization design of the base assembly.

[0049] In one alternative implementation, the air outlet includes:

[0050] The main air outlet is formed on the first side wall of the housing, which is located on the opposite side of the air outlet.

[0051] The auxiliary air outlet is formed on the second side wall of the outer casing, and the second side wall is connected to the first side wall.

[0052] Beneficial effects:

[0053] The airflow passing through the control board and winding reel is mainly blown out through the main air outlet, with some passing through the auxiliary air outlet on the side. The high-temperature airflow that has passed through the control board and winding reel comes into contact with the newly blown air from the air blowing device, which affects the heat dissipation effect.

[0054] In one alternative implementation, the control board further includes a heat sink located near the first air duct.

[0055] Beneficial effects:

[0056] This design ensures that the airflow from the exhaust device immediately contacts the radiator and cools it, thus guaranteeing the normal operation of the electronic control board. Simultaneously, the base assembly in this embodiment, through the rational arrangement of the first and second air ducts, ensures that the portion of the airflow blowing from the exhaust device that faces the radiator of the electronic control board can be directly used to cool the radiator. This portion of the airflow is not diverted or redirected, resulting in minimal airflow loss and excellent heat dissipation. The remaining airflow, guided by the second air duct, is blown upwards and cools both sides of the winding reel, preventing the base assembly's outer casing from overheating and improving the user experience.

[0057] Secondly, the present invention also provides a household appliance having a base assembly, characterized in that it comprises:

[0058] The base assembly described in the first aspect of the present invention.

[0059] Beneficial effects:

[0060] The household appliance of the second aspect of the present invention includes the base assembly of the first aspect of the present invention, and thus has the beneficial effects of simultaneously cooling the electronic control board and the winding reel. At the same time, the air blown from the air outlet can be blown directly onto the winding reel without being redirected, and the gap between the bottom wall of the outer casing and the winding reel is small, which makes it difficult for airflow to dissipate. Therefore, the base assembly of the present invention can simultaneously cool the electronic control board and the winding reel, and the cooling effect on the electronic control board is good, which can ensure the normal operation of the electronic control board.

[0061] In one alternative implementation, the household appliance is a separate rice cooker. Attached Figure Description

[0062] To more clearly illustrate the specific embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0063] Figure 1 The base assembly in the prior art;

[0064] Figure 2 This is a top view of the housing of the base assembly according to an embodiment of the present invention;

[0065] Figure 3 This is a partial cross-sectional view of the base assembly according to an embodiment of the present invention;

[0066] Figure 4 This is a side view of the base assembly according to an embodiment of the present invention. The direction indicated by the arrow in the figure is the airflow direction in the first air duct.

[0067] Figure 5 This is a side view of the base assembly according to an embodiment of the present invention. The direction indicated by the arrow in the figure is the airflow direction in the second air duct.

[0068] Figure 6 This is a bottom view of the winding reel of the base assembly according to an embodiment of the present invention;

[0069] Figure 7 This is a top view of the base assembly according to an embodiment of the present invention. The winding reel is hidden to facilitate the display of its internal structure.

[0070] Figure 8 This is a perspective view of the base assembly according to an embodiment of the present invention.

[0071] Explanation of reference numerals in the attached figures:

[0072] 1' Casing; 2' Electronic control board; 3' Winding reel; 4' Air outlet device; 5' First air duct; 6' Second air duct; 7' Diverter plate;

[0073] 1. Outer casing; 101. Air inlet; 1021. Main air outlet; 1022. Auxiliary air outlet; 103. Windproof protrusion; 104. Air guide ribs;

[0074] 2. Electronic control board; 201. Radiator;

[0075] 3. Winding reel; 301. Reel body; 3011. First through hole; 3012. Second through hole; 302. Metal wire; 3021. First straight section; 3022. Second straight section; 3023. Arc connecting section;

[0076] 4. Air outlet device; 401. Fan cover; 402. Fan;

[0077] 5. First air duct;

[0078] 601, First side air duct; 602, Second side air duct. Detailed Implementation

[0079] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0080] Taking multi-functional cooking pots as an example, existing household appliances typically have two heating methods: heating plate (tube) heating and IH heating (Induction heating). Among them, multi-functional cooking pots with IH heating mainly use fan cooling. The overall heat dissipation effect of the machine only meets the national standard. However, in actual use, the outer shell of the product can still be clearly felt to be scalding hot by touching it, which brings a bad experience to the user.

[0081] In related technologies, such as Figure 1 As shown, the winding reel 3' is positioned above the electronic control board 2', and a diverter plate 7' is formed between the winding reel 3' and the electronic control board 2'. The air outlet device 4' is inclinedly positioned inside the housing 1' and is adapted to blow air toward the diverter plate 7'. A first air duct 5' is formed between the diverter plate 7' and the bottom wall of the housing 1', and a second air duct 6' is formed between the diverter plate 7' and the winding reel 3'. The first air duct 5' is used to dissipate heat from the electronic control board 2', and the second air duct 6' is used to dissipate heat from the winding reel 3'.

[0082] However, this configuration means that the airflow blowing towards the electronic control board 2' must first blow upwards, then be guided by the splitter plate to become horizontal air, and finally blow towards the electronic control board 2'. This not only requires the airflow to undergo multiple turns before reaching the electronic control board 2', but also causes some airflow to spill out during the process of blowing towards the electronic control board 2', resulting in poor heat dissipation and a risk that the electronic control board 2' may malfunction due to excessively high temperature.

[0083] Furthermore, in the relevant technology, the first air duct 5' and the second air duct 6' are arranged along the height direction, which results in the first air duct 5' and the second air duct 6' occupying a large space in the height direction, which is not conducive to the miniaturization of the base assembly and is prone to air dispersion, which is not conducive to improving the utilization rate of air.

[0084] The following is combined Figures 2 to 8 The following describes embodiments of the present invention.

[0085] In one embodiment, the rights feature and effect.

[0086] According to an embodiment of the present invention, a base assembly is provided, including a housing 1, an electronic control board 2, a winding reel 3, an air outlet device 4, a first air duct 5, and a second air duct. The housing 1 has an air inlet 101 and an air outlet. The electronic control board 2 is disposed within the housing 1. The winding reel 3 is disposed within the housing 1 and located above the electronic control board 2. The air outlet device 4 is disposed within the housing 1 and located to one side of the electronic control board 2, with its air outlet facing the electronic control board 2. The first air duct 5 is disposed on the bottom wall of the housing 1 and corresponding to the electronic control board 2. The first air duct 5 communicates with the air outlet and extends towards the electronic control board 2. The second air duct is disposed on the bottom wall of the housing 1 and located to one side of the first air duct 5. The second air duct communicates with the air outlet, and along the air outlet direction of the air outlet device 4, the second air duct is inclined upwards to guide the air blown by the air outlet device 4 toward the winding reel 3.

[0087] The base assembly of the present invention has an air outlet device 4 disposed inside the housing 1, and the air outlet of the air outlet device 4 is positioned facing the electronic control board 2. The air is guided to the electronic control board 2 and the winding reel 3 by means of the first air duct 5 and the second air duct disposed in the same horizontal space, respectively. By such arrangement, the existing two air ducts disposed in the vertical space are transformed into two air ducts disposed in the same horizontal space. The above arrangement can reduce the wind resistance encountered by the air during the flow process, increase the wind speed, and thus improve the heat dissipation efficiency of the winding reel 3 and the electronic control board 2.

[0088] Meanwhile, the second air duct is located on one side of the first air duct 5, so the airflow blown out by the air outlet 4 at the side of the electronic control board 2 can be guided to the winding coil 3 and the metal wire of the winding coil 3 can be cooled. It will not divert the airflow facing the electronic control board 2 and avoid energy loss of the airflow blowing towards the electronic control board 2 due to diversion.

[0089] Furthermore, changing the original height space setting to a setting in the same horizontal space can improve the utilization rate of space in the height direction, which in turn helps to miniaturize the base components. In addition, the fact that air is less likely to be scattered in the same horizontal space also helps to improve the efficiency of air utilization.

[0090] Therefore, the air duct distribution of the base assembly of the present invention is more reasonable, which can solve the problem in the related art that the base assembly has poor heat dissipation effect on the electronic control board 2, and there is a risk that the electronic control board 2 will not be able to operate normally due to excessive temperature. It can also improve the space utilization rate in the height direction inside the shell 1, which helps to miniaturize the base assembly.

[0091] In this embodiment, the bottom wall of the second air duct forms an angle θ with the horizontal plane, preferably 30°≤θ≤89°, so that the cooling airflow can reach the coil after being guided by the two air ducts.

[0092] In one embodiment, such as Figure 3 As shown, an air inlet 101 is formed on the bottom wall of the housing 1. An air outlet 4 is disposed above the air inlet 101. A windproof protrusion 103 is formed on the bottom wall of the housing 1. The middle part of the windproof protrusion 103 is arranged around the side of the air inlet 101 away from the electronic control board 2, and both ends extend to the electronic control board 2 respectively.

[0093] With this configuration, the air outlet device 4 can drive the airflow through the air inlet 101 into the housing, and the windproof protrusion 103 can gather the airflow and guide it to blow out towards the electronic control board 2 to avoid airflow loss.

[0094] In one embodiment, such as Figure 4 As shown, the air outlet device 4 includes a fan cover 401 and a fan 402. The fan cover 401 is fitted over the windproof protrusion 103, and an air outlet is formed on the side of the fan cover 401 near the electronic control board 2. The fan 402 is disposed inside the fan cover 401.

[0095] Therefore, the fan cover 401 can cooperate with the windproof protrusion 103, so that the airflow flowing in at the air inlet 101 can be blown out towards the electronic control board 2 without loss, which helps to improve the heat dissipation effect on the circuit board.

[0096] In addition, the fan cover 401 can also change the air outlet direction of the fan 402 so that the air inlet surface of the fan 402 can face the bottom wall of the outer casing 1 to increase the air inlet area, and the air outlet direction of the fan 402 can face the electronic control board 2 to directly blow air onto the heat sink 201 of the electronic control board 2.

[0097] In the prior art, the airflow from the air outlet device 4 to the electronic control board 2' needs to be blown upward first, then transformed into horizontal airflow under the guidance of the splitter plate, and finally blown to the electronic control board 2'. This causes the airflow to undergo multiple turns before reaching the electronic control board 2', and some airflows collide multiple times during the process of blowing to the electronic control board 2', resulting in energy loss.

[0098] In this embodiment, the air outlet device 4 is provided with a fan cover 401 and an air outlet is formed on the side of the fan cover 401 close to the electronic control board 2. The airflow can be blown directly to the electronic control board 2 without having to go through multiple turns or impacts, thus avoiding energy loss caused by turns or impacts.

[0099] Meanwhile, in this embodiment, the fan 402 can blow air onto the control board 2 without tilting towards it. This makes the space occupied by the air outlet device 4 in the height direction smaller, and the distance between the coil and the bottom wall of the outer casing 1 can be set smaller, making it less likely for airflow to escape. This not only makes the structure of the base assembly more compact and reduces the volume of the base assembly, but also helps to improve the efficiency of air utilization.

[0100] In one embodiment, the fan 402 is horizontally positioned inside the fan cover 401.

[0101] With this configuration, the space occupied by the air outlet device 4 in the height direction can be reduced, and the distance between the coil and the bottom wall of the outer casing 1 can be set to be smaller, making it less likely for airflow to escape. This not only makes the structure of the base assembly more compact and reduces the volume of the base assembly, but also helps to improve the heat dissipation effect of the electronic control board 2.

[0102] In one embodiment, such as Figure 2 As shown, the second air duct includes a first side air duct 601 and a second side air duct 602. The first side air duct 601 and the second side air duct 602 are respectively disposed on both sides of the first air duct 5. The first side air duct 601 and the second side air duct 602 can cool the metal wire on the winding reel 3 from both sides to avoid uneven temperature on the metal wire.

[0103] In one embodiment, the winding reel 3 includes a reel body 301 and a metal wire 302. The reel body 301 is detachably disposed within the housing 1 and located above the electronic control board 2.

[0104] Metal wire 302 is wound around the disk body 301, including a first straight section 3021 and a second straight section 3022 that are parallel to each other, and an arc connecting section 3023 connecting the first straight section 3021 and the second straight section 3022. The extending directions of the first straight section 3021 and the second straight section 3022 are parallel to the length direction of the outer shell 1, and the first side air duct 601 and the second side air duct 602 are respectively adapted to blow air onto the first straight section 3021 and the second straight section 3022.

[0105] The housing of the base assembly is generally rectangular or rectangular with rounded corners, while the metal wire 302 is generally wound in a waist shape on the winding spool 3. This makes the first straight section 3021 and the second straight section 3022 of the waist-shaped metal wire 302 close to the housing 1, which easily causes the housing 1 to overheat. In the base assembly of this embodiment, the first side air duct 601 and the second side air duct 602 can dissipate heat from the first straight section 3021 and the second straight section 3022 of the metal wire 302 respectively, and can dissipate heat from the part of the coil that is prone to overheating of the housing 1 without affecting the heat dissipation of the control board 2.

[0106] In one embodiment, such as Figure 6 As shown, the disk body 301 includes a winding section, a first through hole 3011, and a second through hole 3012. The winding section is formed on the upper side of the disk body 301, and a metal wire 302 is wound around it. The first through hole 3011 penetrates the disk body 301 along its thickness direction and is located below the first straight section 3021. The second through hole 3012 penetrates the disk body 301 along its thickness direction and is located below the second straight section 3022.

[0107] The airflow from the air outlet 4 can pass through the first through hole 3011 and the second through hole 3012 of the disk body 301 under the guidance of the second air duct and blow onto the metal wire 302.

[0108] The disk body 301 is preferably, but not limited to, fixed to the outer shell 1 by means of riveting, snap-fitting or threaded connection. Preferably, in this embodiment, a first connecting post is formed on the bottom wall of the outer shell 1, and a second connecting post is formed on the disk body 301. Fasteners are adapted to pass through the first connecting post and the second connecting post in sequence and fix the disk body 301 to the outer shell 1.

[0109] In one embodiment, two air guide ribs 104 are formed on the bottom wall of the outer casing 1. The air guide ribs 104 are located between the air outlet device 4 and the electronic control board 2 and extend along the distance between the air outlet device 4 and the electronic control board 2. The two air guide ribs 104 and the bottom wall of the outer casing 1 are adapted to form a first air duct 5. The air guide ribs 104, the windproof protrusion 103 and the bottom wall of the outer casing 1 are adapted to form a second air duct.

[0110] The first air duct 5 and the second air duct are formed by the air guide ribs 104 and the windproof protrusions 103 formed on the bottom wall of the outer shell 1, which makes the structure of the air duct simple and eliminates the need to add parts inside the outer shell 1, thus contributing to the miniaturization design of the base assembly.

[0111] As an alternative implementation, a first groove, a second groove, and a third groove are formed on the bottom wall of the outer casing 1, extending along the distance between the air outlet device 4 and the electronic control board 2. A first side air duct 601, a first air duct 5, and a second side air duct 602 are formed in the first groove, the second groove, and the third groove, respectively.

[0112] In one embodiment, such as Figure 7 and Figure 8 As shown, the air outlet includes a main air outlet 1021 and an auxiliary air outlet 1022. The main air outlet 1021 is formed on the first sidewall of the outer casing 1, which is located on the opposite side of the air outlet. The auxiliary air outlet 1022 is formed on the second sidewall of the outer casing 1, which is connected to the first sidewall.

[0113] The airflow through the control board 2 and the winding reel 3 is mainly blown out through the main air outlet 1021, and part of it is blown out through the auxiliary air outlet 1022 on the side. The high-temperature airflow that has passed through the control board 2 and the winding reel 3 comes into contact with the air blown out by the air blowing device, which affects the heat dissipation effect.

[0114] In one embodiment, the control board 2 further includes a heat sink 201, which is located near the first air duct 5, and the second air duct is disposed on at least one side of the first air duct 5.

[0115] This configuration ensures that the airflow from the exhaust device 4 immediately contacts the radiator 201 and cools it, thus guaranteeing the normal operation of the control board 2. Simultaneously, the base assembly in this embodiment, through the rational arrangement of the first and second air ducts, ensures that the portion of the airflow from the exhaust device 4 directly facing the radiator 201 of the control board 2 can be used to cool the radiator 201. This portion of the airflow is not diverted or redirected, resulting in minimal airflow loss and excellent heat dissipation. The remaining airflow, guided by the second air duct, is blown upwards and cools both sides of the winding reel 3, preventing the outer casing 1 of the base assembly from overheating and improving the user experience.

[0116] In summary, the air outlet device 4 of the base assembly of the present invention can simultaneously cool the electronic control board 2 and the winding reel 3. At the same time, the air blown from the air outlet device 4 can directly blow onto the winding reel 3 without needing to be turned. Furthermore, the gap between the bottom wall of the outer shell 1 and the winding reel 3 is small, which makes it difficult for airflow to dissipate. Therefore, the base assembly of the present invention can simultaneously cool the electronic control board 2 and the winding reel 3, and the cooling effect on the electronic control board 2 is good, which can ensure the normal operation of the electronic control board 2.

[0117] According to an embodiment of the present invention, in another aspect, a household appliance having a base assembly is also provided, including the base assembly provided in the first aspect of the present invention.

[0118] The household appliance of the second aspect of the present invention includes the base assembly of the first aspect of the present invention, and thus has the beneficial effect of simultaneously cooling the electronic control board 2 and the winding reel 3. At the same time, the air blown from the air outlet 4 can blow directly onto the winding reel 3 without being turned, and the gap between the bottom wall of the outer shell 1 and the winding reel 3 is small, which makes it difficult for airflow to dissipate. Therefore, the base assembly of the present invention can simultaneously cool the electronic control board 2 and the winding reel 3, and the cooling effect on the electronic control board 2 is good, which can ensure the normal operation of the electronic control board 2.

[0119] In this embodiment, the household appliance with a base assembly is a separate rice cooker. Alternatively, the household appliance with a base assembly could be an induction cooker, an electric hot pot, or other household appliances that require an air duct system to dissipate heat from their components.

[0120] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A base assembly, characterized in that, include: The outer casing (1) has an air inlet (101) and an air outlet formed thereon; An electronic control board (2) is disposed inside the housing (1); A winding reel (3) is disposed inside the housing (1) and located above the electronic control board (2); An air outlet device (4) is disposed inside the housing (1) and located on one side of the electronic control board (2), with the air outlet of the air outlet device (4) facing the electronic control board (2). The first air duct (5) is disposed on the bottom wall of the outer casing (1) and corresponding to the electronic control board (2). The first air duct (5) is connected to the air outlet and extends toward the electronic control board (2). The second air duct is located on the bottom wall of the outer casing (1) and on one side of the first air duct (5). The second air duct is connected to the air outlet. Along the air outlet direction of the air outlet device (4), the second air duct is inclined upward, which is suitable for guiding the air blown out by the air outlet device (4) to the winding spool (3). The air inlet (101) is formed on the bottom wall of the outer casing (1), and the air outlet (4) is disposed above the air inlet (101). A windproof protrusion (103) is formed on the bottom wall of the outer casing (1). The middle part of the windproof protrusion (103) is arranged around the side of the air inlet (101) away from the electronic control board (2), and both ends extend to the electronic control board (2). Two air guide ribs (104) are formed on the bottom wall of the outer shell (1). The air guide ribs (104) are located between the air outlet device (4) and the electronic control board (2) and extend along the distance between the air outlet device (4) and the electronic control board (2). The two air guide ribs (104) and the bottom wall of the outer shell (1) are adapted to form the first air duct (5). The air guide ribs (104), the windproof protrusion (103) and the bottom wall of the outer shell (1) are adapted to form the second air duct.

2. The base assembly according to claim 1, characterized in that, The air outlet device (4) includes: A fan cover (401) is fitted over the windproof protrusion (103), and the fan cover (401) has the air outlet on the side near the electronic control board (2); A fan (402) is disposed inside the fan cover (401).

3. The base assembly according to claim 2, characterized in that, The fan (402) is horizontally arranged inside the fan cover (401).

4. The base assembly according to any one of claims 1 to 3, characterized in that, The second air duct includes a first side air duct (601) and a second side air duct (602), with the first side air duct (601) and the second side air duct (602) respectively disposed on both sides of the first air duct (5).

5. The base assembly according to claim 4, characterized in that, The winding reel (3) includes: The disk body (301) is detachably disposed inside the outer casing (1) and located above the electronic control board (2); A metal wire (302) is wound around the disc body (301) and includes a first straight section (3021) and a second straight section (3022) that are parallel to each other, and an arc connecting section (3023) connecting the first straight section (3021) and the second straight section (3022). The extension directions of the first straight section (3021) and the second straight section (3022) are parallel to the length direction of the outer shell (1). The first side air duct (601) and the second side air duct (602) are respectively adapted to blow air onto the first straight section (3021) and the second straight section (3022).

6. The base assembly according to claim 5, characterized in that, The disk body (301) includes: A winding section is formed on the upper side of the disc body (301), and the metal wire (302) is wound on the winding section; The first through hole (3011) penetrates the disk body (301) along the thickness direction of the disk body (301) and is located below the first straight section (3021); The second through hole (3012) penetrates the disk body (301) along the thickness direction of the disk body (301) and is located below the second straight section (3022).

7. The base assembly according to any one of claims 1 to 3, characterized in that, The air outlet includes: The main air outlet (1021) is formed on the first side wall of the housing (1), the first side wall being located on the opposite side of the air outlet; An auxiliary air outlet (1022) is formed on the second side wall of the outer casing (1), the second side wall being connected to the first side wall.

8. The base assembly according to any one of claims 1 to 3, characterized in that, The electronic control board (2) also includes a heat sink (201), which is located on the electronic control board (2) near the first air duct (5).

9. A household appliance having a base assembly, characterized in that, include: The base assembly according to any one of claims 1 to 8.

10. The household appliance according to claim 9, characterized in that, The household appliance mentioned is a separate rice cooker.

Images