Cooking utensil

Abstract

The utility model provides a cooking utensil, and relates to the technical field of household appliances. The cooking utensil comprises a shell, a circuit board, a fan, an air duct and a coil panel. The circuit board is arranged in the shell, and a heat dissipation piece used for dissipating heat of the heating element is arranged on the circuit board. The fan is arranged in the shell and located in the air duct, an air outlet is formed in the air duct, and a guide opening opposite to the heat dissipation piece is formed in the side face of the air duct. The coil panel shields the air outlet of the air duct so that airflow generated by the fan can be guided to the heat dissipation piece through the guide opening. The cooking utensil can solve the problem that normal use of the induction cooker is affected due to the fact that internal parts of the induction cooker are closely arranged and the heat dissipation effect is difficult to meet.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a cooking utensil. Background Art

[0002] Cooking utensils such as induction cookers have the advantages of fast heating, no open flame, safety and convenience, and are increasingly favored and recognized by consumers. When the induction cooker is working, it can use high-frequency alternating current to pass through the coil disk to generate a high-frequency changing magnetic field. The high-frequency changing magnetic field can generate eddy currents at the bottom of the metal pot placed on the induction cooker to heat the food in the metal pot.

[0003] When the induction cooker is operating normally, the power consumption components on the power board and the coil disk inside the induction cooker generate heat. If the heat is not dissipated in time, it is easy to reduce the service life of the power board and the coil disk, and cause the induction cooker to malfunction during use. Therefore, a fan is usually installed in the induction cooker to dissipate the heat of the power board, the coil disk and other heat-generating parts through the wind flow generated by the fan.

[0004] In order to reduce the volume of the induction cooker and realize the lightweight design of the induction cooker, the internal parts of the induction cooker are arranged closely. However, the existing heat dissipation method has a poor heat dissipation effect on the power board, which easily causes the power board to malfunction and affects the normal use of the induction cooker. Utility Model Content

[0005] The present application provides a cooking utensil, which can solve the problem that the internal parts of an induction cooker are closely arranged, making it difficult to achieve sufficient heat dissipation effect, thus affecting the normal use of the induction cooker.

[0006] The present application provides a cooking appliance, comprising:

[0007] case;

[0008] A circuit board, the circuit board is arranged in the housing, and a heat sink for dissipating heat from the heating element is provided on the circuit board;

[0009] A fan, wherein the fan is arranged in the housing;

[0010] A wind tube, wherein the fan is located in the wind tube, the wind tube forms an air outlet and a guide port opposite to the heat sink is provided on the side of the wind tube;

[0011] A coil disk blocks the air outlet of the air duct to guide the airflow generated by the fan to the heat sink through the guide port.

[0012] In the cooking device provided by the present application, the coil disk can block the air outlet of the air cylinder, so that the airflow generated by the fan is not easily released from the air outlet. Most of the airflow generated by the fan can be blown to the heat sink through the guide port, so that the heat absorbed by the heating element on the heat sink is removed by the airflow.

[0013] According to an embodiment of the present application, along the thickness direction of the shell, the shell includes a first shell and a second shell that are opposite to each other, the wind cylinder is arranged in the first shell, and the coil disk is located on a side of the wind cylinder facing the second shell.

[0014] By arranging the coil disk on the side of the wind tube facing the second shell, the coil disk can shield the air outlet of the wind tube, so that the airflow generated by the fan is not easily lost through the air outlet, so that most of the airflow generated by the fan can be blown to the heat sink through the guide port, which is beneficial to increase the air volume at the heat sink and improve the heat dissipation efficiency.

[0015] According to one embodiment of the present application, along the thickness direction of the shell, the second shell is provided with a cover plate corresponding to the wind tube, the cover plate and the coil disk are arranged side by side, the coil disk blocks part of the air outlet of the wind tube, and the cover plate blocks another part of the air outlet of the wind tube.

[0016] By providing the cover plate, the cover plate and the coil disk can be used together to shield the air outlet of the wind tube to increase the shielding area of ​​the air outlet, so that more airflow in the wind tube can be blown to the heat sink through the guide port.

[0017] According to one embodiment of the present application, along the thickness direction of the shell, the height of the lower surface of the heat sink is higher than or equal to the height of the lower surface of the fan, so that the airflow generated by the fan is blown toward the circuit board through the guide port.

[0018] By setting the height of the lower surface of the heat sink to be higher than or equal to the height of the lower surface of the fan, part of the airflow generated by the fan can be blown to the bottom surface of the heat sink, thereby increasing the contact area between the airflow and the heat sink, which is beneficial to improving the heat dissipation efficiency of the heat sink and ensuring the normal operation of the heating element.

[0019] According to an embodiment of the present application, it further includes a fan bracket, and the fan is installed on the air duct through the fan bracket, and an installation groove for avoiding the fan bracket is provided at the air outlet of the air duct.

[0020] The fan bracket can be used to provide stable support for the fan. The fan bracket can be arranged on the side wall of the wind tube. Part of the fan bracket can be located in the mounting groove to be fixedly connected with the wind tube.

[0021] According to one embodiment of the present application, the second shell is provided with a wind shield matching the mounting slot, and the wind shield is located in the mounting slot to prevent the airflow generated by the fan from flowing out through the mounting slot.

[0022] Since the air duct is provided with an installation groove for avoiding the fan bracket, the airflow generated by the fan in the air duct can easily flow out through the installation groove, resulting in a reduction in the airflow at the guide port, thereby affecting the heat dissipation effect. Therefore, a wind shield can be used to block the airflow from flowing out through the installation groove to ensure the amount of air released at the guide port.

[0023] According to one embodiment of the present application, a avoidance groove for avoiding the coil disk is further provided at the air outlet of the wind tube, and the coil disk is located in the avoidance groove. The coil disk blocks the airflow generated by the fan so that the airflow flows toward the guide port.

[0024] In the embodiment of the present application, the second installation slot for installing the fan bracket can be connected to the avoidance slot. When the coil disk is located in the avoidance slot, the coil disk can cover the opening of the second installation slot. There can be a small gap between the coil disk and the inner wall of the avoidance slot to reduce the leakage of airflow.

[0025] According to an embodiment of the present application, the heat sink includes a plurality of heat sinks, the plurality of heat sinks are disposed on the circuit board, a heat sink gap is formed between two adjacent heat sinks, and the guide port corresponds to the heat sink gap.

[0026] Since the guide port and the heat dissipation gap can correspond to each other, the airflow blown out from the guide port can remove the heat on the heat dissipation surface of the heat sink when flowing through the heat dissipation gap, thereby effectively improving the heat dissipation efficiency of the heat sink to ensure the normal operation of the heating element.

[0027] According to an embodiment of the present application, along the thickness direction of the shell, there is an installation gap between the air cylinder and the cover plate, and the size of the installation gap is less than or equal to 1.5 mm.

[0028] The possibility of interference between the air duct and the cover plate during assembly can be reduced by reserving a mounting gap between the air duct and the cover plate. In addition, the size of the mounting gap should be set as small as possible. When the size of the mounting gap is greater than 1.5 mm, the airflow generated by the fan is easy to flow out through the mounting gap between the air duct and the cover plate, affecting the airflow at the guide port, thereby affecting the heat dissipation effect of the heat sink.

[0029] According to one embodiment of the present application, the cover plate extends along the inner wall of the second shell;

[0030] Wherein, the angle at which the cover plate extends along the inner wall of the second shell is in a range of 60 degrees to 90 degrees.

[0031] The following technical problems can be solved by setting the angle m at which the cover plate extends along the inner wall of the second shell to be between 60 degrees and 90 degrees.

[0032] If the angle m at which the cover extends along the inner wall of the second shell is set to be small, the shielding area of ​​the air outlet of the air duct by the cover is also small, and therefore, the shielding effect of the cover on the air outlet of the air duct is easily affected, causing part of the airflow generated by the fan to flow out from the air outlet, thereby affecting the airflow of the guide port. If the angle m at which the cover extends along the inner wall of the second shell is set to be large, it is easy to interfere with other structures on the second shell or other parts inside the cooking appliance, thereby affecting the installation or use of the cooking appliance.

[0033] According to an embodiment of the present application, the shell further includes an annular middle frame, and along the thickness direction of the shell, the first shell and the second shell are respectively arranged at two ends of the annular middle frame;

[0034] The shapes of the first shell and the second shell match the shape of the annular middle frame.

[0035] The shell of the cooking utensil of the embodiment of the present application may be a circular structure. The cooking utensil with a circular structure is small in size, has the advantages of saving space and being easy to store.

[0036] In addition to the technical problems solved by the embodiments of the utility model described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the cooking utensils provided by the embodiments of the utility model, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0038] Figure 1 This is a schematic diagram of the exploded structure of a cooking appliance according to an embodiment of the present application;

[0039] Figure 2 A schematic diagram of a partially exploded structure of a cooking appliance according to an embodiment of the present application;

[0040] Figure 3 It is a partial top view of the structure of a cooking appliance according to an embodiment of the present application;

[0041] Figure 4 This is a schematic diagram of the three-dimensional structure of the first shell of an embodiment of the present application;

[0042] Figure 5 It is a schematic side view of the structure of the second housing of one embodiment of the present application;

[0043] Figure 6 for Figure 5 The enlarged schematic diagram of point A in the middle;

[0044] Figure 7 It is a schematic cross-sectional view of a cooking utensil according to an embodiment of the present application;

[0045] Figure 8 for Figure 7 The enlarged schematic diagram of point B in the middle;

[0046] Fig. 9 It is a schematic diagram of a three-dimensional cross-sectional structure of a cooking utensil according to an embodiment of the present application;

[0047] Fig.10 for Fig. 9 Enlarged schematic diagram of point C in the middle.

[0048] Description of reference numerals:

[0049] 100-cooking utensils;

[0050] 110-shell; 111-first shell; 112-second shell; 1121-cover plate; 1121a-first curved surface; 1121b-second curved surface; 1122-wind shield; 1123-reinforcement rib; 113-annular middle frame;

[0051] 120-circuit board; 122-heat sink; 122a-heat sink; 1221-heat sink;

[0052] 130-fan; 131-fan support;

[0053] 140-air cylinder; 140a-air outlet; 140b-guide port; 140c-first mounting slot; 140d-second mounting slot; 140e-avoidance slot;

[0054] 150-coil disc;

[0055] 160-Panel;

[0056] X-first direction; Y-second direction; Z-thickness direction.

[0057] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0058] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims. Obviously, the described embodiments are 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 making creative work are within the scope of protection of the present application.

[0059] Cooking utensils such as induction cookers are commonly used heating devices and can be used with cookers. Taking the heating device as an induction cooker as an example, the heating device may include a panel, a shell and a coil disk. The panel and the shell may enclose a relatively closed cavity to shield the internal power board, control board, coil disk and other live parts during the working process. Among them, the control board is electrically connected to the coil disk to control the opening and closing of the coil disk through the control board. During operation, the high-frequency current passing through the coil disk can generate countless closed magnetic field forces. The magnetic lines of force cutting the cooker can generate countless small eddy currents to heat the cooker placed on the panel. When in use, the cooker is placed on the panel of the heating device. The cooking utensils can be used to cook the ingredients in the pot.

[0060] During the use of the induction cooker, some components on the power board generate heat. Among them, the heat-generating component is, for example, an IGBT (Insulated Gate Bipolar Transistor). If the heat dissipation treatment of the heating component is not carried out in time, it is easy to affect the service life of the power board, resulting in affecting the normal use of the induction cooker. Therefore, a heat sink for dissipating the heat of the heating component is usually provided on the power board. The heat sink can have a large heat dissipation surface. The heat sink absorbs the heat generated by the heating component and dissipates the heat through its own large heat dissipation surface.

[0061] The induction cooker is also provided with a fan. The wind flow generated by the fan can be used to dissipate heat in the inner space of the shell. The wind flow blowing through the power board can remove the heat generated by the heating element on the power board to improve the heat dissipation efficiency of the heating element.

[0062] In order to reduce the volume of the induction cooker and realize the lightweight design of the induction cooker, the internal parts of the induction cooker are arranged closely. However, in the existing heat dissipation method, the fan has a poor heat dissipation effect on the heating element, which easily causes the power board to malfunction and affects the normal use of the induction cooker.

[0063] Based on the above technical problems, the applicant has improved the structure of the existing cooking utensils. In the cooking utensils of the embodiments of the present application, the coil disk can block the air outlet of the air duct, so that the airflow generated by the fan is not easily released from the air outlet. Most of the airflow generated by the fan can be blown to the heat sink through the guide port, so that the heat absorbed by the heating element on the heat sink is removed by the airflow.

[0064] In the embodiment of the present application, since most of the airflow generated by the fan can be blown toward the heat sink through the guide port, accurate heat dissipation of the heating element can be achieved, which is beneficial to improving the heat dissipation efficiency.

[0065] The cooking appliance provided in the present application is described below with reference to the accompanying drawings and in combination with specific embodiments.

[0066] See also Figures 1 to 4 As shown, the cooking appliance 100 according to the embodiment of the present application may include a housing 110 , a circuit board 120 , a fan 130 , a fan cylinder 140 and a coil disk 150 .

[0067] The circuit board 120 is arranged in the housing 110, and the circuit board 120 is provided with a heat sink 122 for dissipating heat to the heating element. The heat generated by the heating element can be transferred to the heat sink 122. The fan 130 is arranged in the housing 110 and is located in the wind tube 140. The wind tube 140 forms an air outlet 140a and is provided with a guide port 140b opposite to the heat sink 122 on the side of the wind tube 140. The coil disk 150 can block the air outlet 140a of the wind tube 140 to guide the airflow generated by the fan 130 to the heat sink 122 through the guide port 140b.

[0068] In the embodiment of the present application, the air cylinder 140 is provided with an air outlet 140a and a guide port 140b. During the operation of the fan 130, airflow can be generated in the air cylinder 140. The coil disk 150 can block the air outlet 140a of the air cylinder 140, so that in an ideal state, the airflow can be released entirely by the guide port 140b. The heat sink 122 can be arranged at the guide port 140b, so that the airflow flowing out of the guide port 140b can flow through the heat sink 122, so that the heat on the heat sink 122 is removed by the airflow, thereby achieving heat dissipation treatment of the heating element.

[0069] In some possible implementations, see Figure 2 As shown, along the thickness direction Z of the housing 110 , the housing 110 includes a first housing 111 and a second housing 112 opposite to each other. The wind tube 140 may be disposed on the first housing 111 . The coil disk 150 may be located on a side of the wind tube 140 facing the second housing 112 .

[0070] In the embodiment of the present application, by arranging the coil disk 150 on the side of the wind tube 140 facing the second shell 112, the coil disk 150 can block the air outlet 140a of the wind tube 140, so that the airflow generated by the fan 130 is not easily lost through the air outlet 140a, so that most of the airflow generated by the fan 130 can be blown to the heat sink 122 through the guide port 140b, which is beneficial to increase the air volume at the heat sink 122 and improve the heat dissipation efficiency.

[0071] In some examples, the cooking appliance 100 can be placed horizontally on a countertop. Figure 3 In the direction shown, the opening direction of the wind cylinder 140 can be upward. The coil disk 150 can be located at the upper end of the wind cylinder 140 to block the air outlet 140a of the wind cylinder 140. During the operation of the fan 130, the air flow at the bottom can be sucked into the wind cylinder 140. Because the coil disk 150 can block the air outlet 140a above the wind cylinder 140. The air flow of the fan 130 in the wind cylinder 140 can only be released through the guide port 140b on the side of the wind cylinder 140 to dissipate heat to the heat sink 122 at the guide port 140b.

[0072] In some examples, a plurality of through holes may be provided at the bottom of the first housing 111 and in an area corresponding to the wind tube 140 , so as to draw external airflow from the bottom of the first housing 111 into the wind tube 140 when the fan 130 is running.

[0073] In some examples, the fan 130 may be an axial flow fan. When the impeller of the fan 130 rotates, the airflow at the bottom of the first housing 111 may enter the wind tube 140 along the axial direction of the fan 130. The axial direction of the fan 130 and the thickness direction Z of the housing 110 may be the same direction. Under the action of the impeller blades, the airflow may flow toward the inner wall of the wind tube 140. Since the guide hole is provided on the side of the wind tube 140, the airflow flowing toward the inner wall of the wind tube 140 may be blown toward the heat sink 122 through the guide hole.

[0074] In some examples, the blower 130 can continuously run to continuously generate airflow in the wind tube 140. Since the air outlet 140a of the wind tube 140 is blocked by the coil disk 150, the airflow pressure in the wind tube 140 can gradually increase. When the airflow pressure in the wind tube 140 is higher than the airflow pressure outside the wind tube 140, the airflow can have a larger flow rate when released through the guide port 140b, so as to improve the heat dissipation efficiency of the heating element.

[0075] In some examples, the air cylinder 140 and the first housing 111 may be an integrally formed structure.

[0076] In some possible implementations, see Figure 2As shown, along the thickness direction Z of the housing 110, the second housing 112 may be provided with a cover plate 1121 corresponding to the wind cylinder 140. The cover plate 1121 and the coil disk 150 may be arranged side by side. The coil disk 150 may block the air outlet 140a of a part of the wind cylinder 140. The cover plate 1121 may block the air outlet 140a of another part of the wind cylinder 140.

[0077] In the embodiment of the present application, the coil disk 150 and the cover plate 1121 can be used together to block the air outlet 140a of the wind tube 140 to increase the blocking area of ​​the air outlet 140a, so that more airflow in the wind tube 140 can be blown toward the heat sink 122 through the guide port 140b.

[0078] In some examples, the cover plate 1121 and the coil disk 150 can be arranged side by side. In other words, the cover plate 1121 and the coil disk 150 are not staggered along the thickness direction Z of the housing 110. There is no gap between the cover plate 1121 and the coil disk 150 along the thickness direction Z of the housing 110 to reduce the possibility that the airflow flows out from the gap between the cover plate 1121 and the coil disk 150, resulting in an impact on the airflow of the guide port 140b.

[0079] In some examples, the cover plate 1121 may be disposed along the inner wall of the second housing 112. The cover plate 1121 may have a first curved surface 1121a facing the coil disk 150, and the cover plate 1121 may have a second curved surface 1121b connected to the second housing 112. The shape of the first curved surface 1121a may match the outer diameter of the coil disk 150.

[0080] Exemplarily, there may be a gap between the first curved surface 1121a facing the coil disk 150 and the coil disk 150. The gap can satisfy the installation tolerance during the assembly of the coil disk 150 and the second housing 112, and the size of the gap can be set smaller to reduce the airflow flowing out through the gap. For example, the gap between the first curved surface 1121a facing the coil disk 150 and the coil disk 150 can be less than or equal to 1.5mm.

[0081] In some examples, the diameter of the first arc surface 1121 a may be designed according to the outer diameter of the coil disk 150 , which is not limited in the present application.

[0082] For some examples, see Figure 3 As shown, the cover plate 1121 may extend along the inner wall of the second housing 112. The angle at which the cover plate 1121 extends along the inner wall of the second housing 112 may be designed according to the outer diameter of the coil disk 150 and the inner wall size of the second housing 112, which is not limited in this application.

[0083] Exemplarily, the angle m at which the cover plate 1121 extends along the inner wall of the second housing 112 may be between 60 and 90 degrees. For example, the angle m may be 76 degrees.

[0084] Among them, if the angle m at which the cover 1121 extends along the inner wall of the second shell 112 is set to be small, the covering area of ​​the cover 1121 on the air outlet 140a of the wind duct 140 is also small. Therefore, it is easy to affect the covering effect of the cover 1121 on the air outlet 140a of the wind duct 140, causing part of the airflow generated by the fan 130 to flow out from the air outlet 140a, thereby affecting the air flow of the guide port 140b.

[0085] If the angle m at which the cover 1121 extends along the inner wall of the second shell 112 is set relatively large, it is easy to interfere with other structures on the second shell 112 or other parts inside the cooking appliance 100, thereby affecting the installation or use of the cooking appliance 100.

[0086] Therefore, the above technical problem can be solved by setting the angle m at which the cover plate 1121 extends along the inner wall of the second shell 112 to be between 60 degrees and 90 degrees.

[0087] For some examples, see Figure 5 and Figure 6 As shown, the cover plate 1121 may be provided with a reinforcing rib 1123. The reinforcing rib 1123 may be used to improve the connection strength between the cover plate 1121 and the second housing 112. The reinforcing rib 1123 may be provided on a side of the cover plate 1121 facing away from the second housing 112.

[0088] In some examples, the height of the reinforcing rib 1123 can be set according to the overall size of the cooking appliance 100, which is not limited in the present application. For example, the height of the reinforcing rib 1123 can be between 10 mm and 20 mm.

[0089] In some examples, there may be a plurality of reinforcing ribs 1123. The plurality of reinforcing ribs 1123 may be distributed at intervals along the inner wall of the second housing 112. The shape of the reinforcing ribs 1123 is not limited in the present application.

[0090] In some achievable embodiments, along the thickness direction Z of the housing 110 , the height of the lower surface of the heat sink 122 may be higher than or equal to the height of the lower surface of the fan 130 , so that the airflow generated by the fan 130 is blown toward the circuit board 120 through the guide port 140 b .

[0091] In the embodiment of the present application, by setting the height of the lower surface of the heat sink 122 to be higher than or equal to the height of the lower surface of the fan 130, part of the airflow generated by the fan 130 can be blown to the bottom surface of the heat sink 122, thereby increasing the contact area between the airflow and the heat sink 122, which is beneficial to improving the heat dissipation efficiency of the heat sink 122 and ensuring the normal operation of the heating element.

[0092] In some examples, the heating element may be disposed on a side of the heat sink 122 facing the bottom wall of the first housing 111. The height of the lower surface of the heating element may also be higher than or equal to the height of the lower surface of the fan 130, so that part of the airflow generated by the fan 130 can be directly blown to the heating element, and the other part of the airflow can be blown to the heat sink 122, thereby more effectively improving the heat dissipation efficiency.

[0093] In some possible implementations, see Figure 2 As shown, the cooking appliance 100 of the embodiment of the present application may further include a fan bracket 131. The fan 130 may be mounted on the air duct 140 through the fan bracket 131. An installation slot for avoiding the fan bracket 131 is provided at the air outlet 140a of the air duct 140.

[0094] In the embodiment of the present application, the fan bracket 131 can be used to provide stable support for the fan 130. The fan bracket 131 can be arranged on the side wall of the wind tube 140. Part of the fan bracket 131 can be located in the installation groove to be fixedly connected with the wind tube 140.

[0095] In some examples, a support column may be provided on the side wall of the wind tube 140. The fan bracket 131 may be fixed to the support column.

[0096] In some possible implementations, see Figures 7 to 10 As shown, the second housing 112 of the embodiment of the present application may be provided with a windshield 1122 matching the mounting slot. The windshield 1122 may be located in the mounting slot to prevent the airflow generated by the fan 130 from flowing out through the mounting slot.

[0097] In the embodiment of the present application, since an installation groove for avoiding the fan bracket 131 is provided on the air duct 140, the airflow generated by the fan 130 in the air duct 140 can easily flow out through the installation groove, resulting in a reduction in the airflow at the guide port 140b, thereby affecting the heat dissipation effect. Therefore, the airflow can be blocked from flowing out through the installation groove by the wind shield 1122 to ensure the amount of air released at the guide port 140b.

[0098] In some examples, two mounting grooves may be provided on the wind tube 140. The two mounting grooves are arranged opposite to each other along the radial direction of the wind tube 140. Both ends of the fan bracket 131 may be located in the two mounting grooves respectively.

[0099] For some examples, see Figure 2 and Figure 4 As shown, the two mounting grooves may be a first mounting groove 140c and a second mounting groove 140d. The air cylinder 140 may be arranged close to the inner wall of the first housing 111. When the first mounting groove 140c and the second mounting groove 140d are arranged opposite to each other along the radial direction of the air cylinder 140, the first mounting groove 140c may be close to the inner wall of the first housing 111, and the second mounting groove 140d may be close to the center of the first housing 111. The windshield 1122 may be arranged at the first mounting groove 140c to reduce the possibility that the airflow flows out from the first mounting groove 140c to the inner wall of the first housing 111, thereby affecting the heat dissipation effect of the heating element.

[0100] For some examples, see Figure 7 and Figure 8 As shown, the mounting groove may be a long strip structure. The wind shield 1122 may be a long strip plate structure matching the shape of the mounting groove. The wind shield 1122 may be disposed on the surface of the cover plate 1121 facing the first housing 111 .

[0101] In some examples, the gap between the wind shield 1122 and the surfaces opposite to each other in the mounting slot can meet the tolerance requirements during the installation of the cooking appliance 100, and the gap between the wind shield 1122 and the surfaces opposite to each other in the mounting slot can be set smaller to reduce the amount of air flowing out through the gap and reduce the impact of the mounting slot on the amount of air released at the guide port 140b.

[0102] In some examples, the cover plate 1121 , the wind shield plate 1122 and the second shell 112 may be an integrally formed structure.

[0103] In some possible implementations, see Figure 2 and Figure 4 As shown, the outlet 140a of the air cylinder 140 of the embodiment of the present application may also be provided with an avoidance groove 140e for avoiding the coil disk 150. The coil disk 150 may be located in the avoidance groove 140e. The coil disk 150 may block the airflow generated by the fan 130 so that the airflow flows in the direction of the guide port 140b.

[0104] In the embodiment of the present application, the second installation groove 140d for installing the fan bracket 131 can be connected to the avoidance groove 140e. When the coil disk 150 is located in the avoidance groove 140e, the coil disk 150 can cover the opening of the second installation groove 140d. There can be a small gap between the coil disk 150 and the inner wall of the avoidance groove 140e to reduce the leakage of airflow.

[0105] In some possible implementations, see Figure 2 and Figure 3As shown, the heat sink 122 of the embodiment of the present application may include a plurality of heat sinks 1221. The plurality of heat sinks 1221 may be disposed on the circuit board 120. A heat dissipation gap 122a is formed between two adjacent heat sinks 1221. The guide opening 140b may correspond to the heat dissipation gap 122a.

[0106] In the embodiment of the present application, since the guide port 140b can correspond to the heat dissipation gap 122a, the airflow blown out by the guide port 140b can remove the heat on the heat dissipation surface of the heat sink 122 when flowing through the heat dissipation gap 122a, thereby effectively improving the heat dissipation efficiency of the heat sink 122 to ensure the normal operation of the heating element.

[0107] In some examples, the heat sink 1221 may be arranged along a first direction (eg, Figure 2 The plurality of heat sinks 1221 may extend along a second direction (eg, Figure 2 The guide opening 140b is arranged at intervals (in the Y direction) to form a heat dissipation gap 122a between two adjacent heat dissipation fins 1221. Since the guide opening 140b corresponds to the heat dissipation gap 122a, part of the airflow blown out of the guide opening 140b can first enter the heat dissipation gap 122a, and the airflow can flow through the entire heat dissipation gap 122a under the guidance of the heat dissipation fins 1221, so that the airflow can fully contact the heat dissipation surface of the heat dissipation fins 1221, so as to more effectively improve the heat dissipation efficiency.

[0108] In some achievable embodiments, there is an installation gap between the air cylinder 140 and the cover plate 1121 along the thickness direction Z of the housing 110. The size of the installation gap may be less than or equal to 1.5 mm.

[0109] Among them, the first shell 111 and the second shell 112 have processing tolerances during the processing, and the first shell 111 and the second shell 112 have installation tolerances during the assembly process. Therefore, by reserving an installation gap between the wind tube 140 and the cover plate 1121, the possibility of interference between the two during the assembly process can be reduced.

[0110] When the size of the installation gap is greater than 1.5 mm, the airflow generated by the fan 130 easily flows out through the installation gap between the air cylinder 140 and the cover plate 1121, which affects the airflow at the guide port 140 b, thereby affecting the heat dissipation effect of the heat sink 122 .

[0111] Exemplarily, the size of the installation gap may be 0.5 mm, 0.8 mm or 1.2 mm, which is not limited in the present application.

[0112] In some examples, the end surface of the wind tube 140 facing away from the first housing 111 may refer to the highest surface of the wind tube 140. The first installation groove 140c and the avoidance groove 140e are respectively located on both sides of the area corresponding to the highest surface of the wind tube 140. Correspondingly, the cover plate 1121 may correspond to the highest surface of the wind tube 140.

[0113] In some possible implementations, see Figure 1 and Figure 2 As shown, the housing 110 may further include an annular middle frame 113. Along the thickness direction Z of the housing 110, the first housing 111 and the second housing 112 are respectively disposed at two ends of the annular middle frame 113. The shapes of the first housing 111 and the second housing 112 match the shape of the annular middle frame 113.

[0114] The housing 110 of the cooking utensil 100 of the embodiment of the present application may be in a circular structure. The cooking utensil 100 of the circular structure is small in size, has the advantages of saving space and being convenient for storage.

[0115] Since the cooking utensil 100 of the circular structure is small in size and its internal parts are arranged compactly, it is easy for the heat generated by the heating element to be difficult to dissipate. Therefore, in the embodiment of the present application, the air duct 140 is provided with an air outlet 140a and a guide port 140b. By shielding the air outlet 140a of the air duct 140, most of the airflow can be released from the guide port 140b. And the heat sink 122 can be arranged at the guide port 140b, so that the airflow flowing out of the guide port 140b can flow through the heat sink 122, so that the heat on the heat sink 122 is removed by the airflow, thereby achieving heat dissipation treatment of the heating element.

[0116] In some possible implementations, see Figure 1 As shown, the cooking appliance 100 may further include a panel 160. The panel 160 may be disposed at the opening of the second housing 112. The panel 160 may be used to support a pot.

[0117] It should be noted here that the numerical values ​​and numerical ranges involved in this application are approximate values. Due to the influence of the manufacturing process, there may be a certain range of errors, which can be considered negligible by those skilled in the art.

[0118] In the description of the embodiments of the present application, 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, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0119] In the description of the present application, it should be understood that the terms used, such as “center”, “length”, “width”, “thickness”, “top”, “bottom”, “up”, “down”, “left”, “right”, “front”, “back”, “vertical”, “horizontal”, “inside”, “outside”, “axial”, “circumferential”, etc., to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the position or component referred to must have a specific direction, a specific structure and operation, and therefore should not be understood as a limitation on the present invention.

[0120] In the embodiments of the present application, the devices or elements referred to or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0121] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein.

[0122] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0123] The term "plurality" in this article refers to two or more than two. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship; in a formula, the character " / " indicates that the previous and next associated objects are in a "division" relationship.

[0124] It should be understood that the various numerical numbers involved in the embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0125] It can be understood that in the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Claims

1. A cooking utensil (100), characterized in that: include: Housing (110); A circuit board (120), the circuit board (120) being arranged in the housing (110), and a heat sink (122) for dissipating heat from a heating element being arranged on the circuit board (120); A fan (130), wherein the fan (130) is disposed in the housing (110); A wind tube (140), wherein the fan (130) is located in the wind tube (140), the wind tube (140) forms an air outlet (140a), and a guide opening (140b) opposite to the heat sink (122) is provided on a side of the wind tube (140); A coil disk (150) blocks the air outlet (140a) of the wind tube (140) to guide the airflow generated by the fan (130) to the heat sink (122) through the guide port (140b).

2. The cooking appliance (100) according to claim 1, characterized in that: Along the thickness direction (Z) of the shell (110), the shell (110) includes a first shell (111) and a second shell (112) that are opposite to each other, the wind cylinder (140) is arranged on the first shell (111), and the coil disk (150) is located on a side of the wind cylinder (140) facing the second shell (112).

3. The cooking appliance (100) according to claim 2, characterized in that: Along the thickness direction (Z) of the shell (110), the second shell (112) is provided with a cover plate (1121) corresponding to the wind tube (140); the cover plate (1121) and the coil disk (150) are arranged side by side; the coil disk (150) blocks a part of the air outlet (140a) of the wind tube (140), and the cover plate (1121) blocks another part of the air outlet (140a) of the wind tube (140).

4. The cooking appliance (100) according to any one of claims 1 to 3, characterized in that: Along the thickness direction (Z) of the housing (110), the height of the lower surface of the heat sink (122) is higher than or equal to the height of the lower surface of the fan (130), so that the airflow generated by the fan (130) is blown toward the circuit board (120) through the guide port (140b).

5. The cooking appliance (100) according to claim 2, characterized in that: It also comprises a fan bracket (131), the fan (130) is mounted on the wind tube (140) via the fan bracket (131), and a mounting groove for avoiding the fan bracket (131) is provided at the air outlet (140a) of the wind tube (140).

6. The cooking appliance (100) according to claim 5, characterized in that: The second shell (112) is provided with a wind shield (1122) matching the installation slot, and the wind shield (1122) is located in the installation slot to prevent the airflow generated by the fan (130) from flowing out through the installation slot.

7. The cooking appliance (100) according to any one of claims 1 to 3, characterized in that: An escape groove (140e) for evading the coil disk (150) is also provided at the air outlet (140a) of the wind tube (140); the coil disk (150) is located in the escape groove (140e); the coil disk (150) blocks the airflow generated by the fan (130) so that the airflow flows in the direction of the guide port (140b).

8. The cooking device (100) according to claim 4, characterized in that: The heat sink (122) comprises a plurality of heat sinks (1221), the plurality of heat sinks (1221) are arranged on the circuit board (120), a heat sink gap (122a) is formed between two adjacent heat sinks (1221), and the guide opening (140b) corresponds to the heat sink gap (122a).

9. The cooking appliance (100) according to claim 3, characterized in that: Along the thickness direction (Z) of the shell (110), there is an installation gap between the air cylinder (140) and the cover plate (1121), and the size of the installation gap is less than or equal to 1.5 mm.

10. The cooking appliance (100) according to claim 3, characterized in that: The cover plate (1121) extends along the inner wall of the second shell (112); Wherein, the angle (m) at which the cover plate (1121) extends along the inner wall of the second shell (112) ranges from 60 degrees to 90 degrees.

Images