Electromagnetic cooking device and combined stove

Abstract

The utility model discloses an electromagnetic cooking device and a combined stove, the electromagnetic cooking device comprises a circuit board, a radiator, a wire coil assembly, a first fan and a second fan, the circuit board is provided with a first electronic component and a second electronic component, the radiator is provided with a first flow channel, and a second flow channel is formed between the wire coil assembly and the circuit board; the first electronic component makes contact with the radiator, the second electronic component is located in the second flow channel, the first fan is suitable for generating airflow flowing through the first flow channel, and the second fan is suitable for generating airflow flowing through the second flow channel. Air flow generated by the first fan can take away heat of the first electronic component, air flow generated by the second fan can take away heat of the second electronic component, and sufficient air volume is provided for heat dissipation of the first electronic component and the second electronic component under the action of the first fan and the second fan. Through the arrangement, accurate and effective heat dissipation of different electronic components is realized, so that the electromagnetic cooking device operates stably.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to an electromagnetic cooking device and a combination cooker. Background Art

[0002] An electromagnetic cooking device such as an induction cooker is equipped with a large number of electronic components. These electronic components will generate a large amount of heat when working. The accumulation of heat will reduce the working stability of the electronic components. Therefore, it is necessary to dissipate the heat of the electronic components. The present application hereby proposes a solution that can achieve effective heat dissipation for the electronic components. Utility Model Content

[0003] The present application aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present application proposes an electromagnetic cooking device.

[0004] To achieve the above objectives, the present application discloses an electromagnetic cooking device, which includes:

[0005] A circuit board having a first electronic component and a second electronic component;

[0006] A heat sink is provided with a first flow channel, and the first electronic component is in contact with the heat sink;

[0007] A second flow channel is formed between the wire tray assembly and the circuit board, and the second electronic component is located in the second flow channel;

[0008] a first fan, adapted to generate an airflow flowing through the first flow channel; and

[0009] The second fan is adapted to generate an airflow flowing through the second flow channel.

[0010] In some embodiments of the present application, the heat sink includes a main body and a plurality of fins disposed on the main body, the first flow channel is formed between adjacent fins, and the first electronic component is in contact with the main body.

[0011] In some embodiments of the present application, the electromagnetic cooking device further includes a first shielding structure, and a side of the first flow channel facing away from the main body is enclosed by the first shielding structure.

[0012] In some embodiments of the present application, the electromagnetic cooking device further includes a bottom shell, the radiator is mounted on the bottom shell, the periphery of the bottom shell is provided with a surrounding plate, and a portion of the surrounding plate constitutes the first shielding structure.

[0013] In some embodiments of the present application, the electromagnetic cooking device also includes a first air duct and a second air duct, the first air duct connects the second fan and the second flow channel, the second air duct connects the second fan and the second flow channel, the first air duct discharges air along a first direction, and the second air duct discharges air along a second direction to form at least two air outlet directions.

[0014] In some embodiments of the present application, the electromagnetic cooking device further includes a first air duct, the first air duct is connected to the second fan and the second flow channel, and an air outlet direction of the first air duct is toward the second electronic component.

[0015] In some embodiments of the present application, the circuit board is higher than the lowest point of the air outlet end of the first air duct, and the air outlet direction of the first air duct is parallel to the circuit board.

[0016] In some embodiments of the present application, the air outlet end of the first air duct is in a diffusion shape.

[0017] In some embodiments of the present application, the electromagnetic cooking device further includes a second air duct, wherein the second air duct connects the second fan and the second flow channel, and an air outlet direction of the second air duct is toward the wire reel assembly.

[0018] In some embodiments of the present application, an air outlet direction of the second air duct is inclined toward the cable drum assembly.

[0019] In some embodiments of the present application, the wire drum assembly is located above the second air duct, and the bottom of the second air duct is inclined from the second fan toward the wire drum assembly.

[0020] In some embodiments of the present application, the electromagnetic cooking device further includes a second shielding structure, the second air duct is disposed at one end of the second flow channel, and the second shielding structure is disposed at the other end of the second flow channel.

[0021] In some embodiments of the present application, the electromagnetic cooking device further includes a bottom shell, the circuit board and the wire reel assembly are arranged on the bottom shell, the periphery of the bottom shell has a surrounding plate, and part of the surrounding plate constitutes the second shielding structure.

[0022] In some embodiments of the present application, the first air duct of the electromagnetic cooking device is closer to the heat sink than the second air duct of the electromagnetic cooking device.

[0023] In some embodiments of the present application, the first air duct of the electromagnetic cooking device and the second air duct of the electromagnetic cooking device are connected to the same second fan;

[0024] In some embodiments of the present application, the electromagnetic cooking device includes at least two second fans, one of which is connected to the first air duct of the electromagnetic cooking device, and the other of which is connected to the second air duct of the electromagnetic cooking device.

[0025] In some embodiments of the present application, the electromagnetic cooking device further includes a bottom shell, the wire reel assembly is disposed on the bottom shell, and the circuit board and the heat sink are disposed between the bottom shell and the wire reel assembly.

[0026] In some embodiments of the present application, the bottom shell is provided with an air outlet, and the air outlet is suitable for discharging the airflow generated by the first fan and / or the airflow generated by the second fan.

[0027] In some embodiments of the present application, the air outlet and the first flow channel are directly opposite to each other.

[0028] In some embodiments of the present application, the bottom shell is provided with a tongue portion and a buckle, the heat sink is provided on the circuit board, one side of the heat sink and one side of the circuit board are clamped between the tongue portion and the bottom of the bottom shell, and the other side of the circuit board is connected to the buckle.

[0029] In some embodiments of the present application, the heat sink constitutes at least a portion of a channel wall of the second channel.

[0030] The second aspect of the present application discloses a combination stove, which comprises a range hood and the above-mentioned electromagnetic cooking device.

[0031] In the technical solution of the present application, the first electronic component is in contact with the radiator, and the airflow generated by the first fan can take away the heat of the first electronic component when it flows through the first flow channel of the radiator. The second electronic component is arranged in the second flow channel, and the airflow generated by the second fan can take away the heat of the second electronic component when it flows through the second flow channel. Since the radiator can form a better heat dissipation for the first electronic component, the first electronic component can be an electronic component with a large heat generation, and the second electronic component can be an electronic component with a relatively small heat generation. Based on the action of the first fan and the second fan, the heat dissipation of the first electronic component and the second electronic component has sufficient air volume. Through such a setting, accurate and effective heat dissipation of different electronic components can be achieved, so that the electromagnetic cooking device can operate stably.

[0032] Other advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other designs can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1 is a schematic diagram of an electromagnetic cooking device in some embodiments;

[0035] Figure 2 An exploded view of an electromagnetic cooking device in some embodiments;

[0036] Figure 3 A cross-sectional view of an electromagnetic cooking device in some embodiments;

[0037] Figure 4 A schematic diagram of a partial structure of an electromagnetic cooking device in some embodiments;

[0038] Figure 5 for Figure 4 The enlarged view marked as A in FIG.

[0039] Figure 6 Schematic diagram of the partial structure of the electromagnetic cooking device in some embodiments (viewing angle and Figure 4 different);

[0040] Figure 7 for Figure 6 The enlarged view marked as B in FIG.

[0041] Figure 8 Schematic diagram of the bottom shell in some embodiments;

[0042] Fig. 9 for Figure 8 The enlarged image marked as C in the figure;

[0043] Fig.10 Schematic diagram of the bottom shell in some embodiments (viewing angle and Figure 8 different);

[0044] Fig.11 for Fig.10 The enlarged view marked as D in the figure;

[0045] Fig.12 Schematic diagram of the bottom shell in some embodiments (viewing angle and Figure 8 , Fig.10 different);

[0046] Fig.13 It is a schematic diagram of assembling a circuit board, a heat sink, a first electronic component and a second electronic component in some embodiments;

[0047] Fig.14 Schematic diagram of the assembly of the circuit board, the heat sink, the first electronic component and the second electronic component in some embodiments (viewing angle and Fig.13 different);

[0048] Fig.15 for Fig.14 The enlarged view marked with E in the figure;

[0049] Fig.16 A schematic diagram of a cable drum assembly in some embodiments;

[0050] Fig.17 is a schematic diagram of airflow exhausted by the first fan in some embodiments;

[0051] Fig.18 Schematic diagram of the airflow discharged by the first fan in some embodiments (viewing angle and Fig.17 different);

[0052] Fig.19 is a schematic diagram of airflow discharged by the second fan through the first air duct in some embodiments;

[0053] Fig. 20 Schematic diagram of the airflow discharged by the second fan through the first air duct in some embodiments (viewing angle and Fig.19 different);

[0054] Fig.21 A schematic diagram of airflow discharged by the second fan through the second air duct in some embodiments;

[0055] Fig. 22 Schematic diagram of the airflow discharged by the second fan through the second air duct in some embodiments (viewing angle and Fig.21 different);

[0056] Fig.23 Schematic diagram of a combined stove in some embodiments.

[0057] Description of Figure Numbers:

[0058] Combination stove 100, electromagnetic cooking device 1000, bottom shell 1100, bottom plate 1110, enclosure 1120, left enclosure / first shielding structure 1121, right enclosure 1122, front enclosure 1123, rear enclosure / second shielding structure 1124, tongue portion 1130, buckle 1140, air outlet 1150, circuit board 1200, first electronic component 1210, second electronic component 1220, radiator 1300, main body 1310, fin portion 1320, first flow channel 1330, wire drum assembly 1400, support plate 1410, wire drum 1420, second flow channel 1430, first air duct 1510, second air duct 1520, bottom 1521 of second air duct 1520, first fan 1610, second fan 1620, range hood 2000.

[0059] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0062] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0064] The present application proposes an electromagnetic cooking device 1000, which is combined with Figures 1 to 5 As shown, in some embodiments, the electromagnetic cooking device 1000 includes a circuit board 1200, a heat sink 1300, a wire reel assembly 1400, a first fan 1610 and a second fan 1620. The circuit board 1200 is provided with a first electronic component 1210 and a second electronic component 1220. The heat sink 1300 is provided with a first flow channel 1330, and the first flow channel 1330 is suitable for airflow to pass through. The first electronic component 1210 is designed to contact the heat sink 1300. The wire reel assembly 1400 and the circuit board 1200 are alternately arranged so that a second flow channel 1430 is formed between the wire reel assembly 1400 and the circuit board 1200. The second flow channel 1430 is suitable for airflow to pass through. The second electronic component 1220 is located in the second flow channel 1430. The first fan 1610 is used to generate airflow and the airflow flows through the first flow channel 1330. The second fan 1620 is used to generate airflow and the airflow flows through the second flow channel 1430.

[0065] In this embodiment, the first electronic component 1210 is in contact with the heat sink 1300, and the airflow generated by the first fan 1610 can take away the heat of the first electronic component 1210 when flowing through the first flow channel 1330 of the heat sink 1300. The second electronic component 1220 is arranged in the second flow channel 1430, and the airflow generated by the second fan 1620 can take away the heat of the second electronic component 1220 when flowing through the second flow channel 1430. Since the heat sink 1300 can form a better heat dissipation for the first electronic component 1210, the first electronic component 1210 can be an electronic component with a large heat generation, and the second electronic component 1220 can be an electronic component with a relatively small heat generation. Based on the functions of the first fan 1610 and the second fan 1620, sufficient air volume can be provided for the heat dissipation of the first electronic component 1210 and the second electronic component 1220. Through such a setting, accurate and effective heat dissipation of different electronic components is achieved, so that the electromagnetic cooking device 1000 can operate stably.

[0066] Specifically, the electromagnetic cooking device 1000 heats the cookware based on the electromagnetic induction phenomenon, that is, the electromagnetic cooking device 1000 can generate an alternating magnetic field. The conductor (cookware) in the alternating magnetic field will have eddy currents. The Joule heating effect of the eddy currents causes the conductor (cookware) to heat up, thereby achieving heating. The electromagnetic cooking device 1000 generates an alternating magnetic field mainly through the cooperation of the circuit board 1200 and the wire reel assembly 1400.

[0067] A first electronic component 1210 and a second electronic component 1220 are arranged on the circuit board 1200. The electronic components (first electronic component 1210, second electronic component 1220) include but are not limited to resistors, capacitors, inductors, potentiometers, electron tubes, heat sinks 1300, electromechanical components, connectors, semiconductor discrete devices, electroacoustic devices, laser devices, electronic display devices, optoelectronic devices, sensors, power supplies, switches, electronic transformers, relays, bridge stacks and IGBTs (insulated gate bipolar transistors).

[0068] The wire reel assembly 1400 is used to emit an alternating magnetic field. For example, the wire reel assembly 1400 includes a support plate 1410 and a wire reel 1420 disposed on the support plate 1410. The wire reel 1420 may include a plurality of wire reels 1420 arranged side by side. The support plate 1410 supports the plurality of wire reels 1420. The alternating current passes through the wire reels 1420, thereby generating an alternating magnetic field with a continuously changing direction. The wire reel assembly 1400 and the circuit board 1200 are alternately arranged, so that a second flow channel 1430 is formed between the wire reel assembly 1400 and the circuit board 1200. The second flow channel 1430 is used for airflow to pass through, and the second electronic component 1220 is located in the second flow channel 1430. When the airflow passes through the second flow channel 1430, the airflow can take away the heat on the second electronic component 1220.

[0069] It is understandable that the wire drum assembly 1400 will also generate heat when working, and when the airflow passes through the second flow channel 1430, it will also take away the heat of the wire drum assembly 1400. Generally speaking, the material of the support plate 1410 can be selected from a material with good thermal conductivity, such as a metal material with good thermal conductivity, and an aluminum material or a stainless steel material can be selected to prepare the support plate 1410. When the wire drum 1420 is working, heat is generated and transferred to the support plate 1410. When the airflow passes through the second flow channel 1430, the heat of the support plate 1410 can be taken away, that is, the heat of the wire drum 1420 can be taken away, so that the heat of the wire drum 1420 can be dissipated, and the heat of the wire drum assembly 1400 can be achieved.

[0070] The heat dissipation of the first electronic component 1210 is mainly based on the heat sink 1300. The heat sink 1300 generally has a larger heat dissipation area than the first electronic component 1210, and the heat sink 1300 has good thermal conductivity. For example, the heat sink 1300 is made of metal material. The first electronic component 1210 needs to be in contact with the heat sink 1300. For example, the first electronic component 1210 is attached to the heat sink 1300, and the heat generated by the first electronic component 1210 when working is conducted to the heat sink 1300. The heat sink 1300 is provided with a first flow channel 1330, and the first flow channel 1330 can be passed through by airflow. When the airflow passes through the first flow channel 1330, it takes away the heat of the heat sink 1300, thereby achieving heat dissipation of the first electronic component 1210.

[0071] By setting the heat sink 1300, the first electronic component 1210 can be cooled faster than the second electronic component 1220. Generally speaking, the circuit board 1200 has electronic components with different heat generation (or power), so the electronic components with larger heat generation (or power) can be contacted with the heat sink 1300 (such as IGBT), and the electronic components with relatively smaller heat generation (or power) can be contacted with the airflow to achieve heat dissipation of different electronic components. In other words, it can be designed to make the heat generation (or power) of the first electronic component 1210 larger than the heat generation (or power) of the second electronic component 1220, so that accurate heat dissipation can be achieved. It can be understood that the electronic components on the circuit board 1200 that are in contact with the heat sink 1300 are regarded as the first electronic components 1210, and those that are not in contact with the heat sink 1300 and are located in the second flow channel 1430 are the second electronic components 1220.

[0072] The airflow flowing through the first flow channel 1330 is generated by the first fan 1610, and the airflow flowing through the second flow channel 1430 is generated by the second fan 1620. For example, the first fan 1610 and the second fan 1620 respectively draw in external air. By setting the first fan 1610 and the second fan 1620, sufficient air volume can be generated to take away heat and ensure the heat dissipation effect. Compared with setting a single fan to provide the same air volume, in this embodiment, by setting the first fan 1610 and the second fan 1620, it is beneficial to reduce the rotation speed of the first fan 1610 and the second fan 1620, thereby reducing the operating noise.

[0073] Combination Fig.13 , Fig.14 and Fig.15As shown, in some embodiments, the heat sink 1300 includes a body portion 1310 and a fin portion 1320, the first electronic component 1210 contacts the body portion 1310, the fin portion 1320 is disposed on the body portion 1310, the number of the fin portions 1320 is multiple (multiple means two or more), and a first flow channel 1330 is formed between adjacent fin portions 1320. The body portion 1310 and the fin portion 1320 can be integrally formed, or the body portion 1310 and the fin portion 1320 can be separate components connected and fixed together by connection means.

[0074] The main body 1310 has an inclined surface (the inclined surface is inclined relative to the circuit board 1200), the first electronic component 1210 is attached to the inclined surface, the fin portion 1320 is arranged on the main body 1310, and adjacent (meaning two adjacent) fin portions 1320 are arranged alternately, so that a first flow channel 1330 is formed between adjacent fin portions 1320, and the heat of the first electronic component 1210 is transferred to the main body 1310 and then to the fin portion 1320. When the airflow flows through the first flow channel 1330, it can take away the heat of the fin portion 1320, thereby achieving heat dissipation of the first electronic component 1210. Since there are multiple fin portions 1320, the heat dissipation area of ​​the heat sink 1300 can be greatly increased by such a setting, thereby achieving better heat dissipation of the first electronic component 1210.

[0075] Furthermore, combined with Figure 4 , Figure 5 , Fig.17 and Fig.18 As shown, in some embodiments, the electromagnetic cooking device 1000 further includes a first shielding structure 1121 , and the first shielding structure 1121 encloses a side of the first flow channel 1330 away from the main body 1310 .

[0076] When a plurality of fin portions 1320 are disposed on the body portion 1310, the plurality of fin portions 1320 are disposed alternately in pairs, and the side of the first flow channel 1330 facing the body portion 1310 is enclosed by the body portion 1310, and the rest of the first flow channel 1330 is open. In this embodiment, by providing the first shielding structure 1121, the first shielding structure 1121 encloses the side of the first flow channel 1330 away from the body portion 1310, so that the circumference of the first flow channel 1330 is relatively closed, so that when the airflow enters from one end of the first flow channel 1330 and is discharged from the other end, it is conducive to the high-speed flow of the airflow in the first flow channel 1330, thereby facilitating the improvement of heat exchange efficiency. It can be understood that the first shielding structure 1121 encloses the first flow channel 1330, that is, the first shielding structure 1121 blocks the airflow, avoids airflow leakage, and promotes the airflow to increase the flow speed in the first flow channel 1330. It is also through the action of the first shielding structure 1121 that the airflow in the first flow channel 1330 is prevented from leaking to the second flow channel 1430 and affecting the heat dissipation of the second electronic component 1220.

[0077] Continue to combine Figure 4 and Figure 5 As shown, in some embodiments, the electromagnetic cooking device 1000 includes a bottom shell 1100 , a heat sink 1300 is installed on the bottom shell 1100 , and a surrounding plate 1120 is provided around the bottom shell 1100 , and a portion of the surrounding plate 1120 constitutes a first shielding structure 1121 .

[0078] The bottom case 1100 is a main structural member of the electromagnetic cooking device 1000, and other components of the electromagnetic cooking device 1000 are installed thereon, for example, the first fan 1610, the second fan 1620, the circuit board 1200, the heat sink 1300 and the cable tray assembly 1400 are all installed on the bottom case 1100. The bottom case 1100 can be made of metal or other materials, and in order to meet the installation requirements of different components, the bottom case 1100 generally has an irregular shape.

[0079] Generally speaking, the bottom case 1100 includes a bottom plate 1110 and a surrounding plate 1120, and the surrounding plate 1120 is located around the bottom plate 1110. When the radiator 1300 is installed on the bottom case 1100, the radiator 1300 cooperates with a portion of the surrounding plate 1120, and the portion of the surrounding plate 1120 constitutes a first shielding structure 1121. Figure 4 , Figure 5 , Figure 8 and Fig. 9As shown, the enclosure 1120 includes a front enclosure 1123, a rear enclosure 1124, a left enclosure 1121 and a right enclosure 1122. When the radiator 1300 is installed on the bottom shell 1100, it cooperates with the left enclosure 1121, and the left enclosure 1121 encloses the first flow channel 1330. Through such an arrangement, the installation requirements of various components can be met, and the structure of the bottom shell 1100 can be fully utilized.

[0080] Combination Figure 4 , Figure 6 , Figure 8 , Fig.10 and Fig.12 As shown, in some embodiments, the electromagnetic cooking device 1000 includes a first air duct 1510 and a second air duct 1520. One end of the first air duct 1510 is connected to the second fan 1620, and the other end of the first air duct 1510 is connected to the second flow channel 1430. The first air duct 1510 is a structure for guiding the airflow output by the second fan 1620 to the second flow channel 1430. One end of the second air duct 1520 is connected to the second fan 1620, and the other end of the second air duct 1520 is connected to the second flow channel 1430. The second air duct 1520 is a structure for guiding the airflow output by the second fan 1620 to the second flow channel 1430.

[0081] In this embodiment, the air outlet direction of the first air duct 1510 is the direction in which the airflow leaves the first air duct 1510, and the air outlet direction of the second air duct 1520 is the direction in which the airflow leaves the second air duct 1520. The air outlet direction of the first air duct 1510 can be the first direction, and the air outlet direction of the second air duct 1520 can be the second direction, thus forming at least two air outlet directions.

[0082] For example, the air outlet direction of the first air duct 1510 is toward the rear (first direction), and the air outlet direction of the second air duct 1520 is toward the rear but offset by a certain angle relative to the rear (second direction), thus forming two air outlet directions.

[0083] For another example, the air outlet of the first air duct 1510 is divergent (first direction), and the divergence angle of the air outlet of the second air duct 1520 is smaller than the divergence angle of the air outlet of the first air duct 1510 (second direction), thus forming two air outlet directions.

[0084] By combining the air outlet direction of the first air duct 1510 and the air outlet direction of the second air duct 1520 to form at least two air outlet directions, the airflow output by the first air duct 1510 and the airflow output by the second air duct 1520 can be blown to more positions of the second flow channel 1430 (relative to one air outlet direction), thereby improving the coverage of the airflow in the second flow channel 1430, thereby improving the heat dissipation effect on the second electronic component 1220 and the cable tray assembly 1400.

[0085] For example, the circuit board 1200 and the wire drum assembly 1400 have certain dimensions and are plate-shaped. The dimensions (length, width, and height) of the second flow channel 1430 formed between the circuit board 1200 and the wire drum assembly 1400 are much larger than those of the first flow channel 1330. The first air duct 1510 and the second air duct 1520 are much smaller than the second flow channel 1430. The first air duct 1510 and the second air duct 1520 are formed with at least two air outlet directions, which is conducive to blowing the airflow to more positions of the second flow channel 1430, reducing the existence of heat dissipation dead corners in the second flow channel 1430, thereby improving the heat dissipation effect.

[0086] Combination Figure 4 , Figure 6 , Fig.19 and Fig. 20 As shown, in some embodiments of the present application, the electromagnetic cooking device 1000 includes a first air duct 1510, one end of the first air duct 1510 is connected to the second fan 1620, the other end of the first air duct 1510 is connected to the second flow channel 1430, and the air outlet direction of the first air duct 1510 is toward the second electronic component 1220.

[0087] The so-called air outlet direction is toward the second electronic component 1220, that is, when the airflow is output from the first air duct 1510 and enters the second flow channel 1430, it blows toward the second electronic component 1220, thereby taking away the heat of the second electronic component 1220. For example, when the airflow is output from the first air duct 1510 and enters the second flow channel 1430, it blows directly toward the second electronic component 1220 without any obstruction or reflection, thereby improving the heat dissipation effect on the second electronic component 1220. In other words, the first air duct 1510 is a structure that guides the airflow output from the second fan 1620 to the second flow channel 1430 and to the second electronic component 1220.

[0088] For example, in some embodiments, the circuit board 1200 is configured to be higher than the lowest point of the air outlet end of the first air duct 1510, and the air outlet direction of the first air duct 1510 is parallel to the circuit board 1200. Through such a configuration, when the airflow is output from the first air duct 1510, it can flow along the plane where the circuit board 1200 is located. Since the second electronic component 1220 is protruding on the surface of the circuit board 1200 relative to the circuit board 1200, the contact between the airflow and the second electronic component 1220 can be strengthened, avoiding a certain distance between the airflow output from the first air duct 1510 and the circuit board 1200. Through such a configuration, the heat dissipation effect of the second electronic component 1220 can be enhanced.

[0089] Furthermore, in some embodiments, the air outlet of the first air duct 1510 is diffused, so that the airflow output from the first air duct 1510 covers as many second electronic components 1220 as possible. Fig.19Taking the orientation shown in FIG. 1 as an example, when viewed from top to bottom, the size of the first air duct 1510 ( Fig.19 Left and right direction) relative to the size of the circuit board 1200 ( Fig.19 By designing the air outlet end of the first air duct 1510 to be diffuse, the airflow is enhanced to flow in a divergent manner, so that it can flow through more positions of the circuit board 1200 and take away the heat of the second electronic components 1220 at different positions.

[0090] Combination Figure 4 , Figure 6 , Figure 8 , Fig.10 and Fig.12 As shown, in some embodiments, the electromagnetic cooking device 1000 includes a second air duct 1520, one end of the second air duct 1520 is connected to the second fan 1620, and the other end of the second air duct 1520 is connected to the second flow channel 1430, and the air outlet direction of the second air duct 1520 is toward the wire reel assembly 1400.

[0091] The so-called air outlet direction is toward the wire tray assembly 1400, that is, when the airflow is output from the second air duct 1520 and enters the second flow channel 1430, it blows toward the wire tray assembly 1400, thereby taking away the heat of the wire tray assembly 1400. In other words, the second air duct 1520 is a structure that guides the airflow output by the second fan 1620 to the second flow channel 1430 and the wire tray assembly 1400.

[0092] For example, when the airflow is output from the second air duct 1520 and enters the second flow channel 1430, it is directly blown toward the wire drum assembly 1400 without any obstruction or reflection, thereby improving the heat dissipation effect of the wire drum assembly 1400. As mentioned above, the wire drum assembly 1400 includes a support plate 1410 and a wire drum 1420 disposed on the support plate 1410. The airflow output from the second air duct 1520 is blown toward the support plate 1410 of the wire drum assembly 1400, and the heat of the wire drum 1420 is transferred to the support plate 1410. The airflow contacts the support plate 1410 to take away the heat.

[0093] Optionally, the air outlet direction of the second air duct 1520 is designed to be tilted toward the wire tray assembly 1400, and the airflow output by the second air duct 1520 contacts the wire tray assembly 1400 in a tilted manner relative to the wire tray assembly 1400, thereby taking away the heat of the wire tray assembly 1400. Generally speaking, the second fan 1620 and the second air duct 1520 are arranged on the bottom shell 1100, and the wire tray assembly 1400 is arranged above the second air duct 1520. By designing the air outlet direction of the second air duct 1520 to be tilted relative to the wire tray assembly 1400, the air outlet of the second air duct 1520 can be blown to the wire tray assembly 1400 without too much reversing.

[0094] For example, combined with Fig.10 , Fig.21 and Fig. 22 As shown, in some embodiments, the cable tray assembly 1400 is disposed above the second air duct 1520, and the bottom 1521 of the second air duct 1520 is configured to be inclined from the second fan 1620 toward the cable tray assembly 1400, so that the air outlet direction of the second air duct 1520 is toward the cable tray assembly 1400. Fig.10 In the orientation shown, the second fan 1620 is placed flat on the bottom shell 1100. The so-called flat placement means that the rotation axis of the wind wheel of the second fan 1620 extends in the up-down direction. The wind wheel of the second fan 1620 is a centrifugal impeller, which can reduce the occupation of the upper and lower spaces. The wire tray assembly 1400 is located above the second fan 1620 and the second air duct 1520. The bottom 1521 of the second air duct 1520 is inclined from the second fan 1620 toward the wire tray assembly 1400, that is, the bottom of the second air duct 1520 is inclined relative to the wire tray assembly 1400. In this way, when the airflow generated by the second fan 1620 flows through the second air duct 1520, it flows toward the wire tray assembly 1400 under the action of the bottom 1521 of the second air duct 1520 and blows toward the wire tray assembly 1400, strengthening the contact between the airflow and the wire tray assembly 1400, thereby taking away the heat of the wire tray assembly 1400.

[0095] Furthermore, combined with Figure 2 , Fig.10 , Fig.12 , Fig.16 , Fig.21 and Fig. 22 As shown, in some embodiments, the electromagnetic cooking device 1000 further includes a second shielding structure 1124 , the second air duct 1520 is disposed at one end of the second flow channel 1430 , and the second shielding structure 1124 is disposed at the other end of the second flow channel 1430 .

[0096] The second air duct 1520 is disposed at one end of the second flow channel 1430. When the airflow is output from the second air duct 1520 and blows toward the wire tray assembly 1400 at an angle relative to the wire tray assembly 1400, the airflow can quickly contact the portion of the wire tray assembly 1400 close to the second air duct 1520 ( Fig.16 The front end of the central wire tray assembly 1400), the airflow continues to flow along the wire tray assembly 1400, but due to the characteristics of the airflow, the farther the airflow is from the second air duct 1520, the more divergent the airflow will be. Then the airflow output from the second air duct 1520 is directed to the part of the wire tray assembly 1400 far away from the second air duct 1520 ( Fig.16Therefore, in this embodiment, by providing a second shielding structure 1124 at the other end of the second flow channel 1430, the airflow of the second air duct 1520 is blocked when it flows to the second shielding structure 1124 and then turns upward, thereby contacting the portion of the wire drum assembly 1400 away from the second air duct 1520, thereby enhancing the heat dissipation of the portion of the wire drum assembly 1400 away from the second air duct 1520.

[0097] As mentioned above, other components of the electromagnetic cooking device 1000 are mounted on the bottom housing 1100. Figures 1 to 6 As shown, the wire reel assembly 1400 covers the bottom shell 1100, the circuit board 1200 is arranged between the wire reel assembly 1400 and the bottom shell 1100, and part of the enclosure 1120 is designed as a second shielding structure 1124, such as the rear enclosure 1124 constituting the second shielding structure 1124. Through such an arrangement, it can not only meet the installation requirements of various components, but also make full use of the structure of the bottom shell 1100.

[0098] As shown in combination 1, in some embodiments, the first air duct 1510 and the second air duct 1520 are connected to the same second fan 1620, that is, the same second fan 1620 provides airflow to the first air duct 1510 and the second air duct 1520 at the same time. By such an arrangement, the number of fans is reduced while ensuring the air volume, and multiple fans are prevented from occupying space and increasing costs. For example, in this embodiment, the electromagnetic cooking device 1000 includes a first fan 1610 and a second fan 1620.

[0099] Of course, in other embodiments, the first air duct 1510 and the second air duct 1520 are connected to different second fans 1620, that is, the electromagnetic cooking device 1000 includes at least two second fans 1620, one of which is connected to the first air duct 1510, and the other second fan 1620 is connected to the second air duct 1520. This solution is more suitable for electromagnetic cooking devices 1000 with larger specifications.

[0100] As described above, the cable tray assembly 1400, the circuit board 1200 and the heat sink 1300 of the electromagnetic cooking device 1000 are mounted on the bottom case 1100. Figure 8 , Fig.10 and Fig.12As shown, in some embodiments, the first air duct 1510 and the second air duct 1520 can be arranged on the bottom shell 1100. For example, the first air duct 1510 and the second air duct 1520 can be designed to be integrally formed with the bottom plate 1110, and the first fan 1610 and the second fan 1620 can also be arranged on the bottom shell 1100. In this way, the cable tray assembly 1400 achieves coverage of the circuit board 1200, the radiator 1300, the first fan 1610, the second fan 1620, the first air duct 1510 and the second air duct 1520. When the first fan 1610 and the second fan 1620 are arranged on the bottom shell 1100, air can be taken in from the bottom of the bottom shell 1100 (the bottom plate 1110 is provided with an air inlet).

[0101] Generally speaking, the radiator 1300 needs to be connected and fixed to the circuit board 1200 so as to be combined together. In order to facilitate the installation and fixation of the radiator 1300 and the circuit board 1200, the bottom shell 1100 is provided with a buckle 1140 and a tongue portion 1130. The radiator 1300 is set on the circuit board 1200 (that is, the radiator 1300 is connected and fixed to the circuit board 1200), one side of the circuit board 1200 and one side of the radiator 1300 are clamped between the bottom of the bottom shell 1100 and the tongue portion 1130, and the other side of the circuit board 1200 is connected to the buckle 1140, so that the radiator 1300 and the circuit board 1200 are fixedly installed to the bottom shell 1100.

[0102] For example, combined with Figures 4 to 11 As shown, the bottom shell 1100 includes a bottom plate 1110 and a panel 1120 arranged around the bottom plate 1110, the panel 1120 includes a front panel 1123, a rear panel 1124, a left panel 1121 and a right panel 1122, a tongue portion 1130 is arranged on the top of the left panel 1121, and a buckle 1140 is arranged on the right side panel. The radiator 1300 and the circuit board 1200 are first connected and assembled together, and then one side of the radiator 1300 and one side (left side) of the circuit board 1200 are inserted between the tongue portion 1130 and the bottom plate 1110, and then the other side (right side) of the control circuit board 1200 is matched with the buckle 1140 to realize buckle connection, so that the installation of the circuit board 1200 and the radiator 1300 is convenient and quick.

[0103] Combination Figure 3 As shown, in some embodiments, the heat sink 1300 constitutes at least a portion of the channel wall of the second channel 1430, so that the airflow output by the second fan 1620 entering the second channel 1430 can also take away the heat of the heat sink 1300 (and the first electronic component 1210), thereby improving the heat dissipation effect on the first electronic component 1210.

[0104] For example, the circuit board 1200 is arranged on the bottom plate 1110, the heat sink 1300 is arranged on the left side of the circuit board 1200, the heat sink 1300 is close to the left enclosure 1121 so that the first flow channel 1330 is enclosed by the left enclosure 1121, the right enclosure 1122 is located on the right side of the circuit board 1200, the cable tray assembly 1400 covers the bottom shell 1100 to cover the circuit board 1200, the first fan 1610 and the second fan 1620 are arranged on the front side of the circuit board 1200, the first air duct 1510 and the second air duct 1520 are arranged between the second fan 1620 and the circuit board 1200, and the heat sink 1300, the circuit board 1200, the right enclosure 1122, the rear enclosure 1124 and the cable tray assembly 1400 constitute the flow channel wall of the second flow channel 1430. When the airflow output by the second fan 1620 enters the second flow channel 1430, it will also take away the heat of the first electronic component 1210. In this solution, the airflow discharged from the second air duct 1520 will encounter obstruction of the rear panel 1124 and turn upward when flowing to the rear panel 1124.

[0105] It is understandable that in order to allow the airflow carrying heat to be discharged from the electromagnetic cooking device 1000, an air outlet 1150 needs to be provided. Figure 4 and Fig.12 As shown, in some embodiments of the present application, the bottom shell 1100 is provided with an air outlet 1150. For example, the air outlet 1150 of the bottom shell 1100 is arranged on the rear panel 1124. The air outlet 1150 is connected to the outside. The air outlet 1150 can be used to discharge the airflow generated by the first fan 1610, and can also be used to discharge the airflow generated by the second fan 1620. It can also be used to discharge the airflow generated by the first fan 1610 and the second fan 1620 at the same time. In this way, the airflow carrying heat can be discharged from the electromagnetic cooking device 1000 through the air outlet 1150 to be discharged to the outside.

[0106] Furthermore, in some embodiments, the air outlet 1150 is directly opposite to the first flow channel 1330. The so-called directly opposite means that along the exhaust direction of the first flow channel 1330, the air outlet 1150 and the first flow channel 1330 at least partially overlap, so that the airflow discharged from the first flow channel 1330 can be quickly discharged through the air outlet 1150. When the heat generated by the first electronic component 1210 is greater than the heat generated by the second electronic component 1220, such a setting will be more conducive to the rapid discharge of heat from the electromagnetic cooking device 1000 without causing the airflow to enter the second flow channel 1430, thereby improving the overall heat dissipation effect.

[0107] On the premise that the air outlet 1150 is directly opposite to the first flow channel 1330, the first air duct 1510 can be designed to be closer to the radiator 1300 relative to the second air duct 1520, so that the second air duct 1520 can be further away from the radiator 1300. Since the airflow output from the second air duct 1520 needs to be blocked by the second shielding structure 1124 (rear panel 1124) and turned up, such a setting is used to avoid the airflow output from the second air duct 1520 being directly discharged through the air outlet 1150 after flowing through the second flow channel, so that more airflow contacts the part of the wire drum assembly 1400 away from the second air duct 1520 before being discharged through the air outlet 1150.

[0108] The present application also discloses a combined stove 100, Fig.23 As shown, the combination stove 100 includes a range hood 2000 and the electromagnetic cooking device 1000, that is, the range hood 2000 and the electromagnetic cooking device 1000 are combined together, for example, the range hood 2000 is located in the middle, and the electromagnetic cooking devices 1000 are respectively arranged on the left and right sides of the range hood 2000. The electromagnetic cooking device 1000 includes a circuit board 1200, a radiator 1300, a wire reel assembly 1400, a first fan 1610 and a second fan 1620. The circuit board 1200 is provided with a first electronic component 1210 and a second electronic component 1220. The radiator 1300 is provided with a first flow channel 1330. The first flow channel 1330 is suitable for airflow to pass through. The first electronic component 1210 is designed to contact the radiator 1300. The wire reel assembly 1400 and the circuit board 1200 are alternately arranged so that a second flow channel 1430 is formed between the wire reel assembly 1400 and the circuit board 1200. The second flow channel 1430 is suitable for airflow to pass through. The second electronic component 1220 is located in the second flow channel 1430. The first fan 1610 is used to generate airflow and the airflow flows through the first flow channel 1330. The second fan 1620 is used to generate airflow and the airflow flows through the second flow channel 1430.

[0109] The first electronic component 1210 is in contact with the heat sink 1300, and the airflow generated by the first fan 1610 can take away the heat of the first electronic component 1210 when it flows through the first flow channel 1330 of the heat sink 1300. The second electronic component 1220 is arranged in the second flow channel 1430, and the airflow generated by the second fan 1620 can take away the heat of the second electronic component 1220 when it flows through the second flow channel 1430. Since the heat sink 1300 can form a better heat dissipation for the first electronic component 1210, the first electronic component 1210 can be an electronic component with a large heat generation, and the second electronic component 1220 can be an electronic component with a relatively small heat generation. Based on the functions of the first fan 1610 and the second fan 1620, sufficient air volume can be provided for the heat dissipation of the first electronic component 1210 and the second electronic component 1220. Through such a setting, accurate and effective heat dissipation of different electronic components is achieved, so that the electromagnetic cooking device 1000 can operate stably. It can be understood that the electromagnetic cooking device 1000 of the combination stove 100 of this embodiment adopts the technical solution of the above embodiment, and therefore has at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0110] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made based on the concept of the present application and the contents of the present application description and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. An electromagnetic cooking device (1000), characterized in that: The electromagnetic cooking device (1000) comprises: A circuit board (1200) is provided with a first electronic component (1210) and a second electronic component (1220); A heat sink (1300) is provided with a first flow channel (1330), and the first electronic component (1210) is in contact with the heat sink (1300); A second flow channel (1430) is formed between the wire reel assembly (1400) and the circuit board (1200), and the second electronic component (1220) is located in the second flow channel (1430); a first fan (1610), adapted to generate an airflow flowing through the first flow channel (1330); and The second fan (1620) is suitable for generating an airflow flowing through the second flow channel (1430).

2. The electromagnetic cooking device (1000) according to claim 1, characterized in that: The heat sink (1300) comprises a main body (1310) and a plurality of fins (1320) arranged on the main body (1310), the first flow channel (1330) is formed between adjacent fins (1320), and the first electronic component (1210) is in contact with the main body (1310).

3. The electromagnetic cooking device (1000) according to claim 2, characterized in that: The electromagnetic cooking device (1000) further comprises a first shielding structure (1121), and a side of the first flow channel (1330) facing away from the main body (1310) is enclosed by the first shielding structure (1121).

4. The electromagnetic cooking device (1000) according to claim 3, characterized in that: The electromagnetic cooking device (1000) further comprises a bottom shell (1100), the heat sink (1300) is mounted on the bottom shell (1100), the periphery of the bottom shell (1100) is provided with a surrounding plate (1120), and a portion of the surrounding plate (1120) constitutes the first shielding structure (1121).

5. The electromagnetic cooking device (1000) according to claim 1, characterized in that: The electromagnetic cooking device (1000) further comprises a first air duct (1510) and a second air duct (1520), wherein the first air duct (1510) is connected to the second fan (1620) and the second flow channel (1430), and the second air duct (1520) is connected to the second fan (1620) and the second flow channel (1430), and the first air duct (1510) discharges air in a first direction, and the second air duct (1520) discharges air in a second direction, so as to form at least two air discharge directions.

6. The electromagnetic cooking device (1000) according to claim 1, characterized in that: The electromagnetic cooking device (1000) further comprises a first air duct (1510), wherein the first air duct (1510) is connected to the second fan (1620) and the second flow channel (1430), and the air outlet direction of the first air duct (1510) is toward the second electronic component (1220).

7. The electromagnetic cooking device (1000) according to claim 6, characterized in that: The circuit board (1200) is higher than the lowest point of the air outlet end of the first air duct (1510), and the air outlet direction of the first air duct (1510) is parallel to the circuit board (1200).

8. The electromagnetic cooking device (1000) according to claim 6, characterized in that: The air outlet end of the first air duct (1510) is in a diffusion shape.

9. The electromagnetic cooking device (1000) according to claim 1, characterized in that: The electromagnetic cooking device (1000) further comprises a second air duct (1520), wherein the second air duct (1520) is connected to the second fan (1620) and the second flow channel (1430), and the air outlet direction of the second air duct (1520) is toward the wire reel assembly (1400).

10. The electromagnetic cooking device (1000) according to claim 9, characterized in that: The air outlet direction of the second air duct (1520) is inclined toward the wire drum assembly (1400).

11. The electromagnetic cooking device (1000) according to claim 10, characterized in that: The wire drum assembly (1400) is located above the second air duct (1520), and the bottom (1521) of the second air duct (1520) is inclined from the second fan (1620) toward the wire drum assembly (1400).

12. The electromagnetic cooking device (1000) according to claim 9, characterized in that: The electromagnetic cooking device (1000) further comprises a second shielding structure (1124), the second air duct (1520) being arranged at one end of the second flow channel (1430), and the second shielding structure (1124) being arranged at the other end of the second flow channel (1430).

13. The electromagnetic cooking device (1000) according to claim 12, characterized in that: The electromagnetic cooking device (1000) further comprises a bottom shell (1100), the circuit board (1200) and the cable drum assembly (1400) being arranged on the bottom shell (1100), the bottom shell (1100) having a surrounding plate (1120) around its periphery, and a portion of the surrounding plate (1120) constituting the second shielding structure (1124).

14. The electromagnetic cooking device (1000) according to claim 5, 6 or 9, characterized in that: The first air duct (1510) of the electromagnetic cooking device (1000) is closer to the heat sink (1300) than the second air duct (1520) of the electromagnetic cooking device (1000).

15. The electromagnetic cooking device (1000) according to claim 5, 6 or 9, characterized in that: The first air duct (1510) of the electromagnetic cooking device (1000) and the second air duct (1520) of the electromagnetic cooking device (1000) are in communication with the same second fan (1620); Alternatively, the electromagnetic cooking device (1000) comprises at least two of the second fans (1620), one of which is connected to the first air duct (1510) of the electromagnetic cooking device (1000), and the other of which is connected to the second air duct (1520) of the electromagnetic cooking device (1000).

16. The electromagnetic cooking device (1000) according to claim 1, characterized in that: The electromagnetic cooking device (1000) further comprises a bottom shell (1100), the wire reel assembly (1400) is arranged on the bottom shell (1100), and the circuit board (1200) and the heat sink (1300) are arranged between the bottom shell (1100) and the wire reel assembly (1400).

17. The electromagnetic cooking device (1000) according to claim 16, characterized in that: The bottom shell (1100) is provided with an air outlet (1150), and the air outlet (1150) is suitable for discharging the airflow generated by the first fan (1610) and / or the airflow generated by the second fan (1620).

18. The electromagnetic cooking device (1000) according to claim 17, characterized in that: The air outlet (1150) and the first flow channel (1330) are directly opposite to each other.

19. The electromagnetic cooking device (1000) according to claim 16, characterized in that: The bottom shell (1100) is provided with a tongue portion (1130) and a buckle (1140); the heat sink (1300) is provided on the circuit board (1200); one side of the heat sink (1300) and one side of the circuit board (1200) are clamped between the tongue portion (1130) and the bottom of the bottom shell (1100); and the other side of the circuit board (1200) is connected to the buckle (1140).

20. The electromagnetic cooking device (1000) according to claim 16, characterized in that: The heat sink (1300) constitutes at least a portion of a channel wall of the second channel (1430).

21. A combined stove (100), characterized in that: It comprises a range hood (2000) and the electromagnetic cooking device (1000) according to any one of claims 1 to 20.

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