Flow guide structure, base and household appliance

Abstract

The invention relates to the technical field of household appliances, and discloses a flow guide structure, a base and a household appliance, the flow guide structure is suitable for being arranged between a base assembly and a fixing frame, the base assembly is provided with an air inlet and a first air outlet, the fixing frame is arranged in the base assembly, and the interior of the fixing frame communicates with the air inlet; the fixing frame is provided with a second air outlet, and the flow guide structure limits an air outlet channel for air to flow from the second air outlet to the first air outlet. The flow guide structure limits the air outlet channel through which the air flows from the second air outlet to the first air outlet, so that hot air flow can be prevented from flowing in other directions except the first air outlet after flowing out from the second air outlet, and heat is prevented from being transferred to other electrical components arranged between the fixing frame and the base assembly; therefore, the normal operation of the whole machine is ensured.

Description

Technical Field

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

[0002] For household appliances such as electric kettles and rice cookers used to heat food, a large part of the increase in added value is reflected in the reduction of working time, that is, fast boiling or fast cooking. Fast boiling and fast cooking mean an increase in the power of the whole machine, so stronger heat dissipation performance is required. When the heat dissipation performance of the product is limited, excessive temperature rise will cause product controller failure, which will cause the whole machine to fail to work properly. Summary of the invention

[0003] In view of this, the present invention provides a guide structure, a base and a household appliance to solve the problem that the controller of the household appliance is prone to malfunction due to temperature rise.

[0004] In the first aspect, the present invention provides a guide structure, which is suitable for being arranged between a base assembly and the fixed frame, the base assembly having an air inlet and a first air outlet, the fixed frame being arranged in the base assembly, the interior of the fixed frame being connected to the air inlet, the fixed frame having a second air outlet, and the guide structure defining an air outlet channel for air to flow from the second air outlet to the first air outlet.

[0005] Beneficial effect: When the guide structure is arranged between the base assembly and the fixing frame, the cooling airflow enters the base assembly from the air inlet, and then enters the fixing frame to cool the electrical components inside the fixing frame. The cooling airflow carries the heat emitted by the electrical components and becomes a hot airflow, which is discharged from the first air outlet. Therefore, the heat of the electrical components can be taken away in time to prevent the internal temperature of the fixing frame from being too high, causing deformation or even fire. In addition, the guide structure limits the air outlet channel from the second air outlet to the first air outlet, which can prevent the hot air flow from flowing out of the second air outlet to other directions except the first air outlet, thereby preventing the heat from being transferred to other electrical components arranged between the fixing frame and the base assembly, causing damage to other electrical components, thereby ensuring the normal operation of the whole machine.

[0006] In an optional embodiment, the guide structure includes a bottom blocking edge, a top blocking edge, and a side edge connecting the bottom blocking edge and the top blocking edge at both ends, and the bottom blocking edge, the top blocking edge, and the side edge define the air outlet channel.

[0007] Beneficial effect: The air guide structure includes a bottom blocking edge, a top blocking edge, and side edges connecting the two ends of the bottom blocking edge and the top blocking edge. The bottom blocking edge, the top blocking edge, and the area between the two side edges form an air outlet channel. The cooling airflow enters the base assembly from the air inlet, and then enters the fixed frame to cool the electrical components inside the fixed frame. The cooling airflow becomes a hot air flow after carrying the heat dissipated by the electrical components. The hot air flow passes through the second air outlet and enters the air outlet channel. The bottom blocking edge, the top blocking edge, and the two side edges separate the air outlet channel and other spaces between the fixed frame and the base assembly. Therefore, the hot air flow can only be blown out from the first air outlet, avoiding the hot air flow from flowing to other electrical components arranged between the fixed frame and the base assembly, causing damage to other electrical components, thereby ensuring the normal operation of the entire machine.

[0008] In an optional embodiment, the bottom blocking edge is suitable for being limited to the fixing frame and / or the base assembly, and the top blocking edge is respectively against the inner wall of the base assembly and the outer wall of the fixing frame.

[0009] Beneficial effect: The bottom blocking edge is suitable for being limited to the fixing frame and / or the base assembly. After the position of the bottom blocking edge is limited, the fixation of the entire air guide structure can be completed, and there is no need to connect the top blocking edge to the fixing frame or the base assembly, which is convenient for installation and fixation. The top blocking edge is respectively abutted against the inner wall of the base assembly and the outer wall of the fixing frame, which can ensure that the bottom blocking edge, the top blocking edge and the air outlet channel between the two side edges and other spaces between the fixing frame and the base assembly are blocked.

[0010] In an optional embodiment, the bottom blocking edge is suitable for being positioned in cooperation with the fixing frame through a positioning structure.

[0011] Beneficial effect: the bottom blocking edge and the fixing frame are positioned by the positioning structure, and the setting of the positioning structure facilitates the rapid installation of the guide structure.

[0012] In an optional embodiment, the positioning structure includes matching positioning holes and positioning posts, the positioning holes are arranged at one of the bottom blocking edge and the fixing frame, and the positioning posts are arranged at the other of the bottom blocking edge and the fixing frame.

[0013] Beneficial effect: The positioning hole and the positioning column cooperate, and the positioning column is inserted into the positioning hole to facilitate the rapid installation of the guide structure.

[0014] In an optional implementation, the bottom blocking edge is provided with a first screw hole, the bottom of the fixing frame is correspondingly provided with a second screw hole, and the bottom blocking edge is connected to the fixing frame by screws.

[0015] Beneficial effect: By setting the first screw hole on the bottom blocking edge and the second screw hole on the fixing frame, the fixed connection between the bottom blocking edge and the fixing frame is facilitated.

[0016] In an optional embodiment, the second air outlet is provided with at least one first rib, and the air guide structure further includes at least one second rib connecting the top blocking edge and the bottom blocking edge, and the second rib corresponds to the first rib one by one.

[0017] Beneficial effect: By setting at least one first rib at the second air outlet, the first rib can enhance the strength at the second air outlet, thereby making the area of ​​the second air outlet larger, and the guide structure includes at least one second rib connecting the top blocking edge and the bottom blocking edge, and the second rib can increase the strength of the guide structure.

[0018] In an optional embodiment, the bottom blocking edge is provided with a wiring groove and / or a wiring buckle.

[0019] Beneficial effect: By arranging a wiring groove and / or a wiring buckle on the bottom blocking edge, it is convenient to fix the power cord or wire.

[0020] In an optional embodiment, the guide structure further includes a mounting portion connected to one of the side edges, the mounting portion is fitted with the outer side of the fixing frame, and the bottom blocking edge extends to a position flush with a side of the mounting portion away from the side edge.

[0021] Beneficial effect: The mounting portion and the bottom blocking edge increase the connection area between the guide structure and the fixing frame, thereby making the connection more stable.

[0022] In an optional embodiment, the fixing frame is provided with a wire outlet, and the mounting portion is provided with a first side blocking edge at an end away from the side edge, and the first side blocking edge abuts against a side of the wire outlet away from the second air outlet.

[0023] Beneficial effect: By setting a first side blocking edge on the installation part, the first side blocking edge and the bottom blocking edge can cooperate to block the hot air flow from flowing outward from the outlet, avoiding the hot air flow from flowing to other electrical components arranged between the fixing frame and the base assembly, causing damage to other electrical components, thereby ensuring the normal operation of the whole machine.

[0024] In an optional embodiment, the mounting portion is further provided with a second side blocking edge, and the second side blocking edge abuts against a side of the wire outlet close to the second air outlet.

[0025] Beneficial effect: By setting the second side blocking edge, the second side blocking edge, the first side blocking edge and the bottom blocking edge can cooperate to block the hot air flow from the outlet, preventing the hot air flow from flowing to other electrical components arranged between the fixing frame and the base assembly, causing damage to other electrical components, thereby ensuring the normal operation of the whole machine.

[0026] In an optional embodiment, the area between the second side blocking edge and the first side blocking edge is suitable for accommodating a wire.

[0027] Beneficial effect: The area between the second side blocking edge and the first side blocking edge can accommodate the wires. After passing through the area, the wires go out through the wiring grooves provided on the bottom blocking edge, thereby avoiding squeezing of the wires.

[0028] In an optional embodiment, an arc-shaped raised edge is provided on the inner side of the top blocking edge, and the fixing frame is provided with a step portion, and the arc-shaped raised edge abuts against the step portion.

[0029] Beneficial effect: by arranging a step portion on the fixing frame, an arc-shaped raised edge is arranged on the top blocking edge, and the arc-shaped raised edge abuts against the step portion, so that the guide structure is easy to assemble.

[0030] In a second aspect, the present invention further provides a base, comprising the guide structure, a base assembly and a fixing frame, wherein the guide structure is arranged between the base assembly and the fixing frame.

[0031] When the base is working, the cooling airflow enters the base assembly from the air inlet, and then enters the fixed frame to cool the electrical components inside the fixed frame. The cooling airflow carries the heat emitted by the heating component and becomes hot airflow, which is discharged from the first air outlet. Therefore, the heat of the electrical components can be taken away in time to prevent the base from being deformed or even catching fire due to excessive temperature inside the base. In addition, by setting a guide structure, the guide structure limits the air outlet channel from the second air outlet to the first air outlet, which can prevent the hot air flow from flowing out of the second air outlet to other directions except the first air outlet, thereby preventing the heat from being transferred to other electrical components arranged between the fixed frame and the base assembly, causing damage to other electrical components, thereby ensuring the normal operation of the whole machine.

[0032] In an optional embodiment, a heat dissipation duct is formed between the air inlet and the first air outlet, and the base further includes:

[0033] A heating component is disposed in the fixing frame and at least partially disposed in the heat dissipation duct;

[0034] A fan, arranged in the heat dissipation duct;

[0035] The controller is arranged in the space between the base assembly and the fixing frame and is located outside the air outlet channel.

[0036] Beneficial effect: When the base is working, the fan works, so that the cooling airflow enters the heat dissipation duct from the air inlet. Since at least part of the heating component is arranged in the heat dissipation duct, the cooling airflow will cool the heating component. The cooling airflow carries the heat emitted by the heating component and becomes a hot airflow. After the hot airflow is discharged from the second air outlet, it is discharged from the first air outlet under the restriction of the air outlet duct. Therefore, the heat of the heating component can be taken away in time to prevent the internal temperature of the base from being too high, causing deformation or even fire. Since the heat of the heating component can be taken away in time, the power of the heating component can be increased to achieve rapid boiling of water or heating of food. In addition, the controller is arranged in the space between the base component and the fixed frame and is located outside the air outlet duct. The guide structure can block the air outlet duct and the controller. The guide structure blocks the hot air flow from flowing to the controller, which can avoid the temperature rise of the controller and cause failure, thereby ensuring the normal operation of the whole machine.

[0037] In an optional embodiment, an installation space is provided between the bottom of the fixing frame and the base assembly, the fan is arranged in the installation space, and an air hole communicating with the fan is provided at the bottom of the fixing frame.

[0038] Beneficial effect: Since there is an installation space between the bottom of the fixing frame and the base assembly, the fan is arranged in the installation space, and the guide structure blocks the air outlet channel and the installation space, which can prevent the hot air flow from mixing with the cooling air flow newly inhaled by the fan again and thus affect the heat dissipation effect of the whole machine.

[0039] In a second aspect, the present invention further provides a household appliance, comprising:

[0040] The base.

[0041] Beneficial effect: In this household appliance, the cooling airflow enters the interior of the base assembly from the air inlet, and then enters the interior of the fixing frame to cool the electrical components inside the fixing frame. The cooling airflow carries the heat emitted by the heating component and becomes a hot airflow, which is discharged from the first air outlet. Therefore, the heat of the electrical components can be taken away in time to prevent the internal temperature of the base from being too high, causing deformation or even fire. In addition, by setting a guide structure, the guide structure limits the air outlet channel from the second air outlet to the first air outlet, which can prevent the hot air flow from flowing out of the second air outlet to other directions except the first air outlet, thereby preventing the heat from being transferred to other electrical components arranged between the fixing frame and the base assembly, causing damage to other electrical components, thereby ensuring the normal operation of the whole machine.

[0042] In an optional embodiment, the household appliance is an electric kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] 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.

[0044] Figure 1 A schematic diagram of a base of the related art;

[0045] Figure 2 A schematic diagram of the air flow direction of the base in the related art;

[0046] Figure 3 is a schematic diagram of a base according to an embodiment of the present invention;

[0047] Figure 4 A schematic diagram of the air flow direction of a base according to an embodiment of the present invention;

[0048] Figure 5 for Figure 3 The enlarged view of point A in the middle;

[0049] Figure 6 Schematic diagram of the diversion structure Figure 1 ;

[0050] Figure 7 Schematic diagram of the diversion structure installed behind the fixing frame Figure 1 ;

[0051] Figure 8 It is a top view of the diversion structure after being installed on the fixing frame;

[0052] Fig. 9 Schematic diagram of the diversion structure installed behind the fixing frame Figure 2 ;

[0053] Fig.10 is a schematic diagram of a fixing frame;

[0054] Fig.11 Schematic diagram of the diversion structure Figure 2 .

[0055] Description of reference numerals:

[0056] 1. Base assembly; 101. Base; 1011. First air outlet; 102. Bottom cover; 1021. Air inlet; 2. Heating assembly; 3. Fan; 4. Controller; 5. Air guide structure; 501. Bottom blocking edge; 502. Top blocking edge; 503. Side edge; 504. Positioning hole; 505. First screw hole; 506. Mounting part; 507. Second rib; 508. Wiring groove; 509. Wiring buckle; 510. Step surface; 511. Convex hull; 5 12. First side blocking edge; 513. Second side blocking edge; 514. Arc-shaped raised edge; 6. Fixing frame; 601. Air hole; 602. Second air outlet; 603. Positioning column; 604. First rib; 605. Wire outlet; 606. Step portion; 607. Wire clamping groove; 7. Air outlet channel; 8. Installation space; 9. Support ring; 10. Microcrystalline board; 11. Sealing ring; 1101. Ring-shaped main body; 1102. Blocking portion; 1103. Sealing rib. DETAILED DESCRIPTION

[0057] 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.

[0058] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0059] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0061] For household appliances such as electric kettles and rice cookers used to heat food, a large part of the increase in added value is reflected in the reduction of working time, that is, fast boiling or fast cooking. Fast boiling and fast cooking mean an increase in the power of the whole machine, so stronger heat dissipation performance is required. When the heat dissipation performance of the product is limited, excessive temperature rise will cause product controller failure, which will cause the whole machine to fail to work properly.

[0062] Combination Figure 1 , Figure 1 It is a schematic diagram of a base of related technology, the base includes a base component 1, a fixing frame 6, a microcrystalline board 10, a heating component 2, a support ring 9, a fan 3 and a controller 4, the base component 1 has an air inlet 1021 and a first air outlet 1011, the air inlet 1021 is located on the bottom wall, the first air outlet 1011 is located on the side wall, the fixing frame 6 is arranged inside the base component 1, there is an installation space 8 between the bottom of the fixing frame 6 and the bottom wall of the base component 1, the fan 3 is located in the installation space 8, the side of the fixing frame 6 and the side wall of the base component 1 have a gap, the controller 4 is located in the gap, the fixing frame 6 is provided with a step portion, the microcrystalline board 10 is arranged on the step portion, the support ring 9 is fixedly connected to the base component 1 and pressed against the microcrystalline board 10. When the base is working, the fan 3 works, so that the cooling airflow enters the base component 1 from the air inlet 1021, and then passes through the fan 3 into the fixed frame 6, flows through the heating component 2, and the cooling airflow becomes hot air after carrying the heat emitted by the heating component 2. The hot air flow passes through the opening on the side of the fixed frame 6 and is discharged from the first air outlet 1011. Therefore, the heat of the heating component 2 can be taken away in time to prevent the internal temperature of the base from being too high, causing deformation or even fire.

[0063] However, the above-mentioned related technologies, such as Figure 2 As shown, after the hot air flow passes through the opening on the side of the fixing frame 6, a part of it will flow to the space where the controller 4 is located through the gap between the side of the fixing frame 6 and the side wall of the base assembly 1, thereby causing the temperature of the controller 4 to be too high, affecting its stability; another part of the hot air flow will flow downward and accumulate under the fixing frame 6, and transfer the heat from the fan 3 to the newly inhaled cold air, affecting the heat dissipation effect of the whole machine, and at the same time will flow to the bottom of the controller 4, affecting the stability of the controller 4.

[0064] Combine the following Figures 3 to 11 , describing an embodiment of the present invention.

[0065] According to an embodiment of the present invention, in the first aspect, a guide structure 5 is provided, which is suitable for being arranged between a base assembly 1 and a fixed frame 6, wherein the base assembly 1 has an air inlet 1021 and a first air outlet 1011; the fixed frame 6 is arranged in the base assembly 1, and the interior of the fixed frame 6 is connected to the air inlet 1021, and the fixed frame 6 has a second air outlet 602; the guide structure 5 defines an air outlet channel 7 for air to flow from the second air outlet 602 to the first air outlet 1011.

[0066] In this embodiment, when the guide structure 5 is arranged between the base assembly 1 and the fixing frame 6, the cooling airflow enters the base assembly 1 from the air inlet 1021, and then enters the fixing frame 6 to cool the electrical components inside the fixing frame 6. The cooling airflow carries the heat emitted by the electrical components and becomes a hot airflow, which is discharged from the first air outlet 1011. Therefore, the heat of the electrical components can be taken away in time to prevent the internal temperature of the base from being too high, causing deformation or even fire. In addition, the guide structure 5 limits the air outlet channel 7 from flowing from the second air outlet 602 to the first air outlet 1011, which can prevent the hot air flow from flowing out of the second air outlet 602 to other directions except the first air outlet 1011, thereby preventing the heat from being transferred to other electrical components arranged between the fixing frame 6 and the base assembly 1, causing damage to other electrical components.

[0067] In one embodiment, the guide structure 5 includes a bottom blocking edge 501, a top blocking edge 502, and a side edge 503 connecting the bottom blocking edge 501 and the top blocking edge 502, and the bottom blocking edge 501, the top blocking edge 502, and the side edge 503 define an air outlet channel 7.

[0068] In this embodiment, the guide structure 5 includes a bottom blocking edge 501, a top blocking edge 502 and a side edge 503 connecting the two ends of the bottom blocking edge 501 and the top blocking edge 502. The area between the bottom blocking edge 501, the top blocking edge 502 and the two side edges 503 forms an air outlet channel 7. When the guide structure 5 is arranged between the base assembly 1 and the fixing frame 6, the cooling airflow enters the base assembly 1 from the air inlet 1021, and then enters the fixing frame 6 to cool the electrical components inside the fixing frame 6. The cooling airflow becomes a hot airflow after carrying the heat dissipated by the electrical components. The hot airflow passes through the second air outlet 602 and enters the air outlet channel 7. The bottom blocking edge 501, the top blocking edge 502 and the two side edges 503 separate the air outlet channel 7 from other spaces between the fixing frame 6 and the base assembly 1. Therefore, the hot airflow can only be blown out from the first air outlet 1011 to prevent the hot airflow from flowing to other electrical components arranged between the fixing frame 6 and the base assembly 1, causing damage to other electrical components, thereby ensuring the normal operation of the whole machine.

[0069] Specifically in one embodiment, the bottom blocking edge 501 blocks the hot air flow from flowing downward to the space between the fixing frame 6 and the base assembly 1, the top blocking edge 502 blocks the hot air flow from flowing upward to the space between the fixing frame 6 and the base assembly 1, and the two side edges block the hot air flow from flowing to the space between the fixing frame 6 and the base assembly 1 on both sides.

[0070] In one embodiment, the bottom blocking edge 501 is suitable for being limited to the fixing frame 6 and / or the base assembly 1 , and the top blocking edge 502 abuts against the inner wall of the base assembly 1 and the outer wall of the fixing frame 6 , respectively.

[0071] In this embodiment, the bottom blocking edge 501 is fixedly connected to the fixing frame 6. After the bottom blocking edge 501 is fixed to the fixing frame 6, the fixation of the entire air guide structure 5 can be completed, and there is no need to connect the top blocking edge 502 to the fixing frame 6 or the base assembly 1, which is convenient for installation and fixation. The top blocking edge 502 is respectively abutted against the inner wall of the base assembly 1 and the outer wall of the fixing frame 6, which can ensure that the bottom blocking edge 501, the top blocking edge 502 and the air outlet channel 7 between the two side edges 503 and other spaces between the fixing frame 6 and the base assembly 1 are blocked.

[0072] Specifically in one embodiment, the bottom blocking edge 501 is limited to the fixing frame 6. It should be noted that the bottom blocking edge 501 is limited to the fixing frame 6, which may specifically mean that the bottom blocking edge 501 is fixedly connected to the fixing frame 6, or that the bottom blocking edge 501 is limited to the fixing frame 6 by a limiting structure.

[0073] Specifically in one embodiment, the bottom blocking edge 501 is limited to the base assembly 1. It should be noted that the bottom blocking edge 501 is limited to the base assembly 1, which may specifically mean that the bottom blocking edge 501 is fixedly connected to the base assembly 1, or that the bottom blocking edge 501 is limited to the base assembly 1 by a limiting structure.

[0074] Specifically in one embodiment, the bottom blocking edge 501 is clamped between the fixing frame 6 and the base assembly 1 .

[0075] Specifically in one embodiment, the two side edges 503 respectively abut against the inner wall of the base assembly 1 .

[0076] In one embodiment, the bottom blocking edge 501 and the fixing frame 6 are positioned by means of a positioning structure.

[0077] In this embodiment, the bottom blocking edge 501 and the fixing frame 6 are positioned by means of a positioning structure, and the provision of the positioning structure facilitates the rapid installation of the guide structure 5 .

[0078] In one embodiment, the positioning structure includes matching positioning holes 504 and positioning posts 603 , wherein the positioning holes 504 are disposed at one of the bottom blocking edge 501 and the fixing frame 6 , and the positioning posts 603 are disposed at the other of the bottom blocking edge 501 and the fixing frame 6 .

[0079] In this embodiment, the positioning hole 504 cooperates with the positioning column 603 , and the positioning column 603 is inserted into the positioning hole 504 to facilitate the rapid installation of the guide structure 5 .

[0080] Specifically in one embodiment, Figure 6 and Figure 7 As shown, the positioning hole 504 is disposed on the bottom blocking edge 501 , and the positioning column 603 is disposed on the bottom of the fixing frame 6 .

[0081] Specifically in one embodiment, two positioning holes 504 are provided, and correspondingly, two positioning posts 603 are provided.

[0082] In one embodiment, the bottom blocking edge 501 is provided with a first screw hole 505 , and the bottom of the fixing frame 6 is correspondingly provided with a second screw hole, and the bottom blocking edge 501 is connected to the fixing frame 6 by screws.

[0083] In this embodiment, by providing a first screw hole 505 on the bottom blocking edge 501 and a second screw hole on the fixing frame 6 , the bottom blocking edge 501 is conveniently fixedly connected to the fixing frame 6 .

[0084] Specifically in one embodiment, Figure 7 As shown, a portion of the bottom blocking edge 501 extends below the fixing frame 6 to facilitate the connection between the bottom blocking edge 501 and the fixing frame 6 .

[0085] Specifically in one embodiment, the guide structure 5 also includes a mounting portion 506 connected to one of the side edges 503 , the mounting portion 506 is in contact with the outer side of the fixing frame 6 , and the bottom blocking edge 501 extends to a position flush with a side of the mounting portion 506 away from the side edge 503 .

[0086] In this embodiment, the mounting portion 506 and the bottom blocking edge 501 increase the connection area between the flow guiding structure 5 and the fixing frame 6, thereby making the connection more stable.

[0087] In one embodiment, the bottom blocking edge 501 is provided with a step surface 510 , which can enhance the strength of the bottom blocking edge 501 .

[0088] In one embodiment, the second air outlet 602 is provided with at least one first rib 604 , and the air guide structure 5 further includes at least one second rib 507 connecting the top blocking edge 502 and the bottom blocking edge 501 , and the second rib 507 corresponds to the first rib 604 one by one.

[0089] In this embodiment, by setting at least one first rib 604 at the second air outlet 602, the first rib 604 can enhance the strength at the second air outlet 602, thereby making the area of ​​the second air outlet 602 larger, and the guide structure 5 includes at least one second rib 507 connecting the top blocking edge 502 and the bottom blocking edge 501, and the second rib 507 can increase the strength of the guide structure 5.

[0090] Specifically in one embodiment, Figure 7 As shown, the second air outlet 602 is provided with three first ribs 604 , and the air guide structure 5 includes three second ribs 507 .

[0091] In one embodiment, the bottom blocking edge 501 is provided with a wiring groove 508 and / or a wiring buckle 509 .

[0092] In this embodiment, by providing a wiring groove 508 and / or a wiring buckle 509 on the bottom blocking edge 501, it is convenient to fix the power cord or the wire.

[0093] Specifically in one embodiment, the bottom blocking edge 501 is provided with a downwardly recessed convex hump 511 , and a wiring groove 508 is provided on one side of the convex hump 511 .

[0094] Specifically in one embodiment, a heating component 2 and a temperature sensing package are provided inside the fixing frame 6, and the fixing frame 6 is provided with a wire outlet 605. After the power line connected to the heating component 2 and the connecting line of the temperature sensing package come out of the wire outlet 605, they pass through the wiring groove 508 and are connected to the controller 4.

[0095] Specifically in one embodiment, the wiring buckle 509 is used to fix the power line connected to the heating component 2, the connection line of the temperature sensing package, the overload protection device line and the power line of the whole machine.

[0096] Specifically in one embodiment, two wiring buckles 509 are provided on the inner side of the bottom blocking edge 501, and the wiring buckles 509 on the bottom blocking edge 501 can cooperate with the wiring buckles 509 at the bottom of the fixing frame 6 to fix the power cord or wire.

[0097] In one embodiment, the fixing frame 6 is provided with a wire outlet 605 , and the mounting portion 506 is provided with a first side blocking edge 512 at one end away from the side edge 503 , and the first side blocking edge 512 abuts against a side of the wire outlet 605 away from the second air outlet 602 .

[0098] In this embodiment, by setting a first side blocking edge 512 on the mounting portion 506, the first side blocking edge 512 and the bottom blocking edge 501 can cooperate to block the hot air flow from the outlet 605 to the outside, thereby preventing the hot air flow from flowing to other electrical components arranged between the fixing frame 6 and the base assembly 1, causing damage to other electrical components, thereby ensuring the normal operation of the entire machine.

[0099] In one embodiment, the mounting portion 506 is further provided with a second side blocking edge 513 , and the second side blocking edge 513 abuts against a side of the wire outlet 605 close to the second air outlet 602 .

[0100] In this embodiment, by setting the second side blocking edge 513, the second side blocking edge 513 and the first side blocking edge 512 and the bottom blocking edge 501 can cooperate to block the hot air flow from the outlet 605 to the outside, thereby preventing the hot air flow from flowing to other electrical components arranged between the fixing frame 6 and the base assembly 1, causing damage to other electrical components, thereby ensuring the normal operation of the whole machine.

[0101] In one embodiment, the area between the second side blocking edge 513 and the first side blocking edge 512 is suitable for accommodating a wire.

[0102] In this embodiment, the area between the second side blocking edge 513 and the first side blocking edge 512 can accommodate the wires. After passing through the area, the wires go out through the wiring groove 508 provided on the bottom blocking edge 501, thereby avoiding squeezing of the wires.

[0103] Specifically in one embodiment, the power line connected to the heating component 2 and the connection line of the temperature sensing package go out from the outlet 605 , pass through the wiring groove 508 , and are connected to the controller 4 .

[0104] In one embodiment, an arc-shaped raised edge 514 is disposed on the inner side of the top blocking edge 502 , and a step portion 606 is disposed on the fixing frame 6 , and the arc-shaped raised edge 514 abuts against the step portion 606 .

[0105] In this embodiment, a step portion 606 is provided on the fixing frame, and an arc-shaped raised edge 514 is provided on the top blocking edge 502 . The arc-shaped raised edge 514 abuts against the step portion 606 , so as to facilitate positioning of the top blocking edge 502 .

[0106] In the second aspect, a base is provided, comprising a base assembly 1, a fixing frame 6 and a guide structure 5 provided in the above embodiment. The guide structure 5 is arranged between the base assembly 1 and the fixing frame 6, and defines an outlet channel 7 for air to flow from the second outlet 602 to the first outlet 1011.

[0107] In this embodiment, when the base is working, the cooling airflow enters the base assembly 1 from the air inlet 1021, and then enters the fixing frame 6 to cool the electrical components inside the fixing frame 6. The cooling airflow carries the heat emitted by the electrical components and becomes a hot airflow, which is discharged from the first air outlet 1011. Therefore, the heat of the electrical components can be taken away in time to prevent the base from being deformed or even catching fire due to excessive temperature inside the base. In addition, by providing a guide structure 5, the guide structure 5 limits the air outlet channel 7 from the second air outlet 602 to the first air outlet 1011, which can prevent the hot airflow from flowing out of the second air outlet 602 to other directions except the first air outlet 1011, thereby preventing the heat from being transferred to other electrical components arranged between the fixing frame 6 and the base assembly 1, causing damage to other electrical components.

[0108] In one embodiment, a heat dissipation duct is formed between the air inlet 1021 and the first air outlet 1011, and the base further includes a heating component 2, a fan 3 and a controller 4. The heating component 2 is disposed in the fixing frame 6, and at least part of it is disposed in the heat dissipation duct; the fan 3 is disposed in the heat dissipation duct; the controller 4 is disposed in the space between the base component 1 and the fixing frame 6 and is located outside the air outlet duct.

[0109] In this embodiment, when the base is working, the fan 3 works, so that the cooling airflow enters the heat dissipation duct from the air inlet 1021. Since at least part of the heating component 2 is arranged in the heat dissipation duct, the cooling airflow will cool the heating component 2. The cooling airflow carries the heat emitted by the heating component 2 and becomes a hot airflow. After the hot airflow is discharged from the second air outlet 602, it is discharged from 1011 under the restriction of the air outlet duct 7. Therefore, the heat of the heating component 2 can be taken away in time to prevent the internal temperature of the base from being too high, causing deformation or even fire. Since the heat of the heating component 2 can be taken away in time, the power of the heating component 2 can be increased to achieve rapid boiling of water or heating of food. In addition, the controller 4 is arranged in the space between the base component 1 and the fixing frame 6 and is located outside the air outlet duct 7. The guide structure 5 can block the air outlet duct 7 and the controller 4. The guide structure 5 blocks the hot airflow from flowing to the controller 4, which can avoid the controller 4 from temperature rise and causing failure, thereby ensuring the normal operation of the whole machine.

[0110] In one embodiment, an installation space 8 is provided between the bottom of the fixing frame 6 and the base assembly 1 , the fan 3 is disposed in the installation space 8 , and an air hole 601 communicating with the fan 3 is provided at the bottom of the fixing frame 6 .

[0111] In this embodiment, since there is an installation space 8 between the bottom of the fixing frame 6 and the base assembly 1, the fan 3 is arranged in the installation space 8, and the guide structure 5 blocks the air outlet channel 7 and the installation space 8, which can prevent the hot air flow from mixing with the newly inhaled cooling air flow of the fan 3 again and thus affecting the heat dissipation effect of the whole machine.

[0112] Specifically in one embodiment, the base assembly 1 includes a base 101 and a bottom cover 102 , the bottom cover 102 is connected to the bottom of the base 101 , and the air inlet 1021 is disposed on the bottom cover 102 .

[0113] In this embodiment, the base assembly 1 includes a base 101 and a bottom cover 102. During assembly, after the base 101 and the fixing frame 6 are assembled, the fan 3 can be installed on the bottom of the fixing frame 6, and then the bottom cover 102 can be connected to the bottom of the base 101 to facilitate the assembly of the entire base.

[0114] In one embodiment, the base further includes a support ring 9 and a microcrystalline plate 10 . The microcrystalline plate 10 is disposed above the heating component 2 . The support ring 9 is fixedly connected to the fixing frame 6 and is sealed to the edge of the microcrystalline plate 10 via a sealing ring 11 .

[0115] In this embodiment, a kettle or other cooking utensils that need to be heated can be placed on the microcrystalline board 10. The support ring 9 is fixedly connected to the fixing frame 6 and sealed to the edge of the microcrystalline board 10 to prevent water from entering the base through the edge of the microcrystalline board 10.

[0116] In one embodiment, a sealing ring 11 is provided between the lower end of the support ring 9 and the microcrystalline plate 10 , and the sealing ring 11 can prevent food or water from flowing into the interior of the base.

[0117] In one embodiment, Figure 5 As shown, the cross section of the sealing ring 11 is L-shaped, including an annular main body 1101 and a blocking portion 1102 connected to the outer periphery of the annular main body 1101 . The blocking portion 1102 surrounds the outer side of the lower end of the support ring 9 , and the support ring 9 can pre-tighten the sealing ring 11 .

[0118] In one embodiment, at least one annular sealing rib 1103 is protruded from the lower end of the sealing ring 11 , and the sealing rib 1103 abuts against the microcrystalline board 10 .

[0119] Specifically in one embodiment, the heating component 2 includes a heating plate.

[0120] Specific as Figure 3 and Figure 4 As shown, the air inlet 1021 is provided on the bottom surface of the base assembly 1. The cooling airflow enters from the bottom air inlet 1021, flows through the fan 3, passes through the air hole 601 at the bottom of the fixing frame 6, enters the inside of the fixing frame 6, and becomes hot airflow after flowing through the heating assembly 2. The hot airflow passes through the second air outlet 602, and then blows out from the first air outlet 1011.

[0121] According to an embodiment of the present invention, in a third aspect, a household appliance is provided, comprising the base provided in the above embodiment.

[0122] When the base of the household appliance is working, the cooling airflow enters the base assembly 1 from the air inlet 1021, and then enters the fixing frame 6 to cool the electrical components inside the fixing frame 6. The cooling airflow carries the heat emitted by the electrical components and becomes a hot airflow, which is discharged from the first air outlet 1011. Therefore, the heat of the electrical components can be taken away in time to prevent the base from being overheated and causing deformation or even fire. In addition, by providing a guide structure 5, the guide structure 5 limits the air outlet channel 7 from the second air outlet 602 to the first air outlet 1011, which can prevent the hot air flow from flowing out of the second air outlet 602 to other directions except the first air outlet 1011, thereby preventing the heat from being transferred to other electrical components arranged between the fixing frame 6 and the base assembly 1, causing damage to other electrical components.

[0123] Specifically in one embodiment, the household appliance is an electric kettle.

[0124] 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 flow guide structure, suitable for being arranged between a base assembly (1) and a fixing frame (6), the base assembly (1) having an air inlet (1021) and a first air outlet (1011), the fixing frame (6) being arranged in the base assembly (1), the interior of the fixing frame (6) being communicated with the air inlet (1021), the fixing frame (6) having a second air outlet (602), characterized in that: The flow guiding structure (5) is suitable for defining an air outlet channel (7) for air to flow from the second air outlet (602) to the first air outlet (1011).

2. The flow guiding structure according to claim 1, characterized in that: The air guide structure (5) comprises a bottom blocking edge (501), a top blocking edge (502), and a side edge (503) connecting the bottom blocking edge (501) and the top blocking edge (502) at both ends; the bottom blocking edge (501), the top blocking edge (502), and the side edge (503) define the air outlet channel (7).

3. The flow guiding structure according to claim 2, characterized in that: The bottom blocking edge (501) is suitable for being limited to the fixing frame (6) and / or the base assembly (1), and the top blocking edge (502) is respectively against the inner wall of the base assembly (1) and the outer wall of the fixing frame (6).

4. The flow guiding structure according to claim 2, characterized in that: The bottom blocking edge (501) is suitable for being positioned in cooperation with the fixing frame (6) through a positioning structure.

5. The flow guiding structure according to claim 4, characterized in that: The positioning structure comprises matching positioning holes (504) and positioning posts (603), wherein the positioning holes (504) are arranged at one of the bottom blocking edge (501) and the fixing frame (6), and the positioning posts (603) are arranged at the other of the bottom blocking edge (501) and the fixing frame (6).

6. The flow guiding structure according to claim 2, characterized in that: The bottom blocking edge (501) is provided with a first screw hole (505), and the bottom of the fixing frame (6) is correspondingly provided with a second screw hole, and the bottom blocking edge (501) and the fixing frame (6) are connected by screws.

7. The flow guiding structure according to any one of claims 2 to 6, characterized in that: The second air outlet (602) is provided with at least one first rib (604), and the air guide structure (5) further comprises at least one second rib (507) connecting the top blocking edge (502) and the bottom blocking edge (501), and the second rib (507) corresponds one-to-one to the first rib (604).

8. The flow guiding structure according to any one of claims 2 to 6, characterized in that: The bottom blocking edge (501) is provided with a wiring groove (508) and / or a wiring buckle (509).

9. The flow guiding structure according to any one of claims 2 to 6, characterized in that: The flow-guiding structure (5) further comprises a mounting portion (506) connected to one of the side edges (503), wherein the mounting portion (506) is in contact with the outer side of the fixing frame (6), and the bottom blocking edge (501) extends to a position flush with a side of the mounting portion (506) away from the side edge (503).

10. The flow guiding structure according to claim 9, characterized in that: The fixing frame (6) is provided with a wire outlet (605), and the mounting portion (506) is provided with a first side blocking edge (512) at an end away from the side edge (503), and the first side blocking edge (512) abuts against a side of the wire outlet (605) away from the second air outlet (602).

11. The flow guiding structure according to claim 10, characterized in that: The mounting portion (506) is further provided with a second side blocking edge (513), and the second side blocking edge (513) abuts against a side of the wire outlet (605) close to the second air outlet (602).

12. The flow guiding structure according to claim 11, characterized in that: The area between the second side blocking edge (513) and the first side blocking edge (512) is suitable for accommodating a wire.

13. The flow guiding structure according to any one of claims 2 to 6 and 10 to 12, characterized in that: An arc-shaped raised edge (514) is provided on the inner side of the top blocking edge (502), and the fixing frame (6) is provided with a step portion (606), and the arc-shaped raised edge (514) abuts against the step portion (606).

14. A base, characterized in that: It comprises a flow guiding structure (5) as claimed in any one of claims 1 to 13, a base assembly (1) and a fixing frame (6), wherein the flow guiding structure (5) is arranged between the base assembly (1) and the fixing frame (6).

15. The base according to claim 14, characterized in that A heat dissipation duct is formed between the air inlet (1021) and the first air outlet (1011), and the base further comprises: A heating component (2) is disposed in the fixing frame (6) and is at least partially disposed in the heat dissipation duct; A fan (3), arranged in the heat dissipation duct; A controller (4) is arranged in the space between the base assembly (1) and the fixing frame (6) and is located outside the air outlet channel.

16. The base according to claim 15, characterized in that An installation space (8) is provided between the bottom of the fixing frame (6) and the base assembly (1), the fan (3) is arranged in the installation space (8), and an air hole (601) communicating with the fan (3) is provided at the bottom of the fixing frame (6).

17. A household appliance, characterized in that: include: A base as claimed in any one of claims 14 to 16.

18. The household appliance according to claim 17, characterized in that: The household appliance is an electric kettle.

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