CN209801543U - Electromagnetic oven - Google Patents

Abstract

the utility model provides an induction cooker, which comprises a bottom shell (1), and a heat radiation fan (5), a coil panel (3) and a circuit board assembly (4) which are positioned in the bottom shell (1); an air inlet hole (120) and an air outlet hole (110) are formed in the bottom shell (1), and the air inlet hole (120) is formed in the side wall, facing a user, of the bottom shell (1); the lower surface of cooling fan (5) forms to the air inlet face, and the upper surface of cooling fan (5) forms the air-out face, and the position that corresponds cooling fan (5) at least of the diapire of drain pan (1) forms boss (100) towards the below protrusion of drain pan (1) to can avoid desktop ponding by the suction in the drain pan, and improve the radiating effect.

Description

electromagnetic oven

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to an induction cooker.

Background

The electromagnetic oven has the advantages of quick heating, no open fire, no smoke, safety, convenience and the like, and is more and more favored and accepted by consumers.

The electromagnetism stove mainly includes: the coil panel is positioned in an inner cavity of the bottom shell; wherein, coil panel and circuit board subassembly etc. are main heating element, and radiator fan is used for dispelling the heat for heating element. An air inlet hole and an air outlet hole are formed in the bottom shell, the air inlet hole is specifically formed in the bottom wall of the bottom shell, and the air inlet hole is located under the heat dissipation fan. When the induction cooker works, cooling air outside the induction cooker enters the bottom shell from the air inlet hole in the bottom wall of the bottom shell under the action of the heat dissipation fan, heat of heating elements such as the coil disc and the circuit board is taken away, and then hot air is blown out of the induction cooker from the air outlet hole in the bottom shell, so that heat dissipation of the induction cooker is realized.

however, because the air inlet hole of the induction cooker in the prior art is opened on the bottom wall of the bottom shell, the bottom wall of the bottom shell is closer to the desktop, especially for the induction cooker with a thin appearance, the space from the bottom wall to the desktop is very narrow, and when the heat dissipation fan works, accumulated water and the like on the desktop are easily sucked into the inner cavity of the bottom shell, so that the electronic devices in the bottom shell are affected with damp when encountering water or are short-circuited, and further the induction cooker is damaged and unsafe accidents occur.

SUMMERY OF THE UTILITY MODEL

in order to solve at least one problem mentioned in the background art, the utility model provides an induction cooker can avoid desktop ponding to be inhaled in the drain pan, and improved the radiating effect.

In order to achieve the above object, the present invention provides an electromagnetic oven, which comprises a bottom shell, and a heat dissipation fan, a coil panel and a circuit board assembly located in the bottom shell; the bottom shell is provided with an air inlet hole and an air outlet hole, and the air inlet hole is formed in the side wall of the bottom shell facing the user;

the lower surface of the heat dissipation fan is formed into an air inlet surface, the upper surface of the heat dissipation fan is formed into an air outlet surface, and the position of the bottom wall of the bottom shell, which at least corresponds to the heat dissipation fan, protrudes towards the lower part of the bottom shell to form a boss.

The utility model discloses an induction cooker through seting up all fresh air inlets on the lateral wall towards the user of drain pan, promptly, only sets up the fresh air inlet at the leading flank of induction cooker drain pan, compares with prior art, because the utility model provides a fan pressure area is kept away from to the fresh air inlet, and the fresh air inlet is higher than the position of drain pan diapire apart from the distance of desktop, and the inside and outside pressure difference of air inlet department is less to can avoid the ponding of induction cooker during operation desktop to be inhaled the condition emergence to in the drain pan, prolonged the interior electron device's of induction cooker life, avoid the emergence of dangerous accident. Moreover, if the overflow phenomenon occurs during the cooking process, because the air inlet is only arranged on the side wall of the bottom shell facing the user, namely, the air inlet is arranged close to the operation area (namely, the front side of the induction cooker), namely, the cooker placed on the induction cooker panel is far away from the air inlet, even if the overflow phenomenon occurs, the soup overflowing from the cooker is not easy to flow into the inner cavity of the bottom shell from the air inlet, thereby further effectively protecting the devices in the induction cooker and avoiding the occurrence of unsafe accidents. Moreover, the lower surface of the heat dissipation fan is formed into an air inlet surface, and the upper surface of the heat dissipation fan is formed into an air outlet surface, namely, the bottom of the heat dissipation fan is formed into an air inlet area, so that cooling air entering from an air inlet hole enters the bottom of the heat dissipation fan, is pressurized by the heat dissipation fan, is blown out from the top of the heat dissipation fan, and is blown to heating elements such as a coil panel, a circuit board assembly and the like to dissipate heat of the heating elements; meanwhile, the boss is formed by protruding the position of the bottom wall of the bottom shell, which at least corresponds to the heat dissipation fan, towards the lower part of the bottom shell, namely, the position of the bottom wall of the bottom shell, which at least corresponds to the heat dissipation fan, is sunk, so that the volume of a negative pressure area at the positive bottom of the heat dissipation fan is increased, namely, the air inlet space at the bottom of the heat dissipation fan is increased, the wind resistance is reduced, the total air inlet volume is increased, and the heat dissipation effect is improved.

optionally, the distance between the inner bottom surface of the boss and the air inlet surface of the heat dissipation fan ranges from 10mm to 25 mm.

The distance between the inner bottom surface of the boss and the air inlet surface of the heat dissipation fan is set in the range, so that the air inlet space at the bottom of the heat dissipation fan is increased, the air inlet amount is increased, the situation that the bottom shell is too thick can be avoided, and the induction cooker can be developed towards thinning.

Optionally, a wind shielding rib is arranged in the inner cavity of the bottom shell, and the wind shielding rib divides the inner cavity of the bottom shell into a first cavity in which the heat dissipation fan, the coil panel and the circuit board assembly can be installed and a second cavity in which the lamp panel can be installed;

The air inlet hole is formed in the side wall, facing the user, of the second chamber;

and the wind blocking rib is provided with a vent for communicating the second cavity and the first cavity.

Through the arrangement of the wind blocking rib, the air inlet hole is formed in the side wall, facing the user, of the second cavity, so that a cold air cavity and a hot air cavity with opposite temperatures are formed in the inner cavity of the bottom shell, and meanwhile, the wind blocking rib is provided with the ventilation opening, so that cooling wind entering from the air inlet hole can smoothly enter an air inlet area at the bottom of the heat dissipation fan through the ventilation opening, the wind blowing amount blowing to the heating element is ensured, the cooling wind is effectively utilized, and the heat dissipation effect is further improved; because the electromagnetism stove during operation, the heat in the second cavity of installing the lamp plate is very little, sets up the fresh air inlet at the second cavity for the cooling air temperature that gets into to first cavity from the second cavity is lower, thereby has further improved the radiating effect.

Optionally, the ventilation opening is formed in a part of the wind blocking rib, which is surrounded on the periphery of the heat dissipation fan.

The arrangement makes the air inlet smoother.

Optionally, the vent is arranged right opposite to the air inlet hole.

the arrangement enables the flow path of the cooling air entering from the air inlet hole to be approximately linear, reduces the extension resistance, enables the cooling air to reach the first cavity more quickly and smoothly, and further improves the heat dissipation efficiency.

optionally, the plane of the top end of the vent is not higher than the plane of the lower surface of the heat dissipation fan.

if the plane at the top place with the vent sets up to the plane that is higher than radiator fan's lower surface place, can lead to radiator fan to probably blow back partial wind to the second cavity in, and then lead to this part wind can't blow to heating element such as coil panel, circuit board subassembly, lead to blowing to heating element's amount of wind diminish, the utility model discloses a plane that the top place that makes the vent is less than radiator fan's lower surface place plane, perhaps with radiator fan's the plane parallel and level at lower surface place to guarantee to enter into the intake to first cavity from the vent, further guaranteed the radiating effect.

optionally, the vent extends to the bottom end of the wind-blocking rib.

Through extending the vent to the bottom of wind-break muscle for the cooling wind that gets into from the vent can be direct and as much as possible reachs the air inlet face of radiator fan, and then blows to heating element after through the radiator fan pressure boost, has further improved the speed and the smooth and easy nature of air inlet.

optionally, the exhaust vent is seted up on the lateral wall of drain pan with the air inlet is relative, and/or, the exhaust vent is seted up keep away from of the diapire of drain pan one side of air inlet.

the air outlet holes are formed in the side wall of the bottom shell opposite to the air inlet holes, and/or the side wall of the bottom shell far away from the air inlet holes, namely, all the air outlet holes are formed in the rear part of the induction cooker, air inlet holes and air outlet holes are not formed in the walls of the two sides of the bottom shell of the induction cooker, namely, the induction cooker is of a front air inlet and rear air outlet structure, when cooling air outside the induction cooker enters the inner cavity of the bottom shell from the air inlet holes under the action of a heat dissipation fan, the air cannot be blown out from other positions without the air outlet holes, and only can be blown out from the air outlet holes concentrated far away from the air inlet holes, so that the whole flow direction of an air channel of the induction cooker is from the front part to the rear part in the inner cavity of the bottom shell, the air channel flow direction is approximately in a straight line, the pressure loss of an air flow is reduced, larger air pressure is formed, thereby improving the heat dissipation effect of the induction cooker. Moreover, if the phenomenon of overflowing occurs in the cooking process, when the soup flowing out of the cooker flows down from the two sides of the bottom shell, the soup cannot enter the inner cavity of the bottom shell because the walls of the two sides of the bottom shell are not provided with the air inlet holes and the air outlet holes; because the air inlet is only arranged on the side wall of the bottom shell facing the user, namely, the air inlet is arranged close to the operation area (namely, the front side of the induction cooker), namely, the cooker arranged on the panel of the induction cooker is far away from the air inlet, even if the phenomenon of overflowing the cooker occurs, the soup overflowing from the cooker is not easy to flow into the inner cavity of the bottom shell from the air inlet, thereby further effectively protecting the devices in the induction cooker and avoiding the occurrence of unsafe accidents.

Optionally, the side wall of the bottom case includes: the first side wall, the second side wall, the third side wall and the fourth side wall are sequentially connected along the circumferential direction of the bottom shell;

The third side wall is arranged opposite to the first side wall, and the second side wall is arranged opposite to the fourth side wall;

the first side wall faces a user, and the air inlet hole is formed in the first side wall;

at least part of the air outlet hole is formed in the third side wall.

Therefore, the air flow path in the inner cavity of the induction cooker can be further ensured to be basically linear, the air speed is ensured, and the outflow path of hot air is better and faster.

optionally, the coil panel, the circuit board assembly and the heat dissipation fan are integrally arranged in a triangular shape;

the coil panel is located between the heat radiation fan and the third side wall, and the circuit board assembly is located between the heat radiation fan and the fourth side wall.

therefore, part of the air discharged by the heat radiation fan is blown to the coil panel, part of the air is blown to the circuit board assembly, and then the hot air is directly blown out from the air outlet hole at the rear part of the bottom shell; the purpose of not opening the air outlet on the fourth side wall is to avoid the air outlet at the position from causing the change of the air duct path, and avoid the situation that a large amount of heated airflow which flows through the coil panel firstly flows through the rear part of the circuit board assembly, and the accumulated temperature causes the temperature at the position to become higher.

Optionally, when a wind shielding rib is arranged in the inner cavity of the bottom shell, the wind shielding rib comprises a first rib section and a second rib section which are sequentially connected; the first rib section forms a partial cavity wall of the second cavity, and the second rib section is arranged around the periphery of the heat dissipation fan in a surrounding mode;

The wind blocking rib further comprises a third rib section, one end of the third rib section is connected with the second rib section, the other end of the third rib section faces towards the direction of the third side wall, or the other end of the third rib section faces towards the joint of the third side wall and the second side wall.

Through setting up the third muscle section, make the third muscle section extend towards the direction of third lateral wall or extend towards the junction of third lateral wall and second lateral wall to the width of first cavity has been reduced, makes the cooling air that blows to first cavity concentrate more, and is better to heating element's radiating effect.

optionally, a blocking rib is further arranged between the coil panel and the heat dissipation fan;

the blocking rib extends to a position between the coil disc and the circuit board assembly.

the blocking rib is arranged between the coil disc and the heat dissipation fan, so that the air starting effect of the heat dissipation fan is better, and cooling air can flow in a preset path; through making the fender muscle extend to between coil panel and the circuit board subassembly, can reduce the heat radiation between coil panel and the circuit board subassembly to a certain extent, avoid heat interact between them, and further guarantee that circuit board subassembly's circuit board and the radiator that is located the circuit board front end can obtain sufficient cooling air flow, further improve the radiating effect.

The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a top view structural diagram of an inside of a bottom case of an induction cooker according to an embodiment of the present invention;

FIG. 2 is a sectional view taken along line A-A in FIG. 1;

fig. 3 is a perspective view of an inside of a bottom case of an induction cooker according to an embodiment of the present invention.

Description of reference numerals:

1-a bottom shell;

100-a boss;

101 — a first side wall;

102 — a second sidewall;

103 — a third side wall;

104 — a fourth side wall;

105-a bottom wall;

110-air outlet;

120-air inlet holes;

11 — a first chamber;

12 — a second chamber;

2-a panel;

3-coil panel;

4-a circuit board assembly;

40-a radiator;

5, a heat dissipation fan;

6-wind blocking ribs;

61 — a first rib section;

62-a second rib section;

63-third rib section;

60-a vent;

7-a lamp panel;

8, blocking ribs;

h is the distance.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 is a top view structural diagram of an inside of a bottom case of an induction cooker according to an embodiment of the present invention; FIG. 2 is a sectional view taken along line A-A in FIG. 1; fig. 3 is a perspective view of an inside of a bottom case of an induction cooker according to an embodiment of the present invention. Referring to fig. 1 to 3, the present embodiment provides an induction cooker.

the induction cooker may specifically include: the lamp panel comprises a bottom shell 1, a panel 2, a coil panel 3 positioned in the bottom shell 1, a circuit board assembly 4, a heat dissipation fan 5 and a lamp panel 7. Wherein, panel 2 is located the top of drain pan 1, and panel 2 can be ceramic panel, also can be glass panels, the utility model discloses do not limit to panel 2's material. The lamp panel 7 can be provided with control devices and/or display devices such as keys and indicator lights.

The coil panel 3 may specifically include a coil panel frame and a coil wound on the coil panel frame, and the coil is electrically connected to the circuit board. When the induction cooker works, the coil panel 3 and the circuit board assembly 4 are main heating elements, and the heat dissipation fan 5 is used for dissipating heat of the heating elements such as the coil panel 3 and the circuit board assembly 4. When the induction cooker is used for cooking, a pot filled with food materials is placed on the panel 2 of the induction cooker, the induction cooker is electrified, namely, high-frequency current flows through coils on the coil panel 3, and generated magnetic lines cut the pot, so that countless small eddy currents are formed on the bottom surface of the pot, and the pot is heated.

The bottom shell 1 is provided with an air inlet 120 and an air outlet 110, when the induction cooker works, cooling air outside the induction cooker enters the bottom shell 1 from the air inlet 120 under the suction action of the cooling fan 5, is pressurized by the cooling fan and then blows towards the coil panel 3, the circuit board assembly 4 and the like to take away heat of heating elements such as the coil panel 3 and the circuit board assembly 4 and the like, and then hot air blows out from the air outlet 110, so that heat dissipation of the induction cooker is realized.

The circuit board assembly 4 may specifically include a circuit board and a heat sink 40. Generally, an Insulated Gate Bipolar Transistor (IGBT) and an electronic element such as a bridge rectifier are disposed on a circuit board, the IGBT and the bridge rectifier generate heat greatly, in order to further improve the heat dissipation effect of the electronic element, the heat sink 40 is disposed to contact the electronic element on the circuit board, the heat generated by the electronic element is rapidly transferred to the heat sink 40, and the heat is dissipated by the heat sink 40.

because the fresh air inlet of prior art's electromagnetism stove sets up on the diapire of drain pan, outside cooling air of electromagnetism stove gets into in the drain pan by the fresh air inlet on the diapire of drain pan under radiator fan's effect, but the diapire of drain pan is closer than the desktop, especially to the electromagnetism stove that the appearance is thinner, the space of its diapire to the desktop is very narrow and small, when radiator fan worked, inhales ponding etc. on the desktop into the drain pan inner chamber easily, leads to the electron device in the drain pan to meet the water and wet or the phenomenon of taking place the short circuit to appear, leads to the emergence of electromagnetism stove damage and unsafe accident. Based on this, in the present embodiment, the air inlet holes 120 are specifically formed on the side wall of the bottom case 1 facing the user, and it can be understood that, when the user uses the induction cooker to cook normally, the side wall of the bottom case 1 close to and facing the user is the side wall on which the air inlet holes 120 are formed, i.e. the front side wall of the induction cooker.

Through seting up all fresh air inlets 120 on the user's of drain pan 1 lateral wall, promptly, only set up fresh air inlet 120 at the leading flank of electromagnetism stove drain pan 1, compare with prior art, because the utility model provides a fresh air inlet 120 keeps away from fan pressure area, and fresh air inlet 120 is higher than the position of drain pan 1 diapire 105 apart from the distance of desktop, and fresh air inlet 120 locates the inside and outside pressure difference of wind less to can avoid the ponding of electromagnetism stove during operation desktop to be inhaled the condition emergence in the drain pan 1, prolonged electron device's in the electromagnetism stove life, avoid unsafe accident's emergence. Moreover, if the overflow phenomenon occurs during the cooking process, since the air inlet 120 is only opened on the side wall of the bottom case 1 facing the user, that is, the air inlet 120 is disposed close to the operation area (i.e., the front side of the induction cooker), that is, the pot placed on the panel of the induction cooker is far away from the air inlet 120, even if the overflow phenomenon occurs, the soup overflowing from the pot is not easy to flow into the inner cavity of the bottom case 1 through the air inlet 120, thereby further effectively protecting the devices in the induction cooker and avoiding the occurrence of unsafe accidents.

The cooling fan 5 of this embodiment may be an axial flow fan with low cost. The cooling fan 5 may specifically include: the fan comprises a fan support and fan blades, wherein a rotor is arranged on the fan support, and the fan blades are connected with the rotor. When the cooling fan 5 is installed, for example, the fan bracket is located above and the fan blades are located below. The fan support can be fixed on the lower cover of drain pan 1, also can be fixed on the upper cover, perhaps fix on panel 2 etc., the utility model discloses do not specifically limit to this. Of course, the heat dissipation fan 5 may also include fan blades and a fan cover covering the periphery of the fan blades.

Specifically, the lower surface of the cooling fan 5 forms an air inlet surface, and the upper surface of the cooling fan 5 forms an air outlet surface, that is, the lower surface of the fan blade is the air inlet surface, the upper surface of the fan blade is the air outlet surface, and the air inlet direction is downward air inlet and upward air outlet. The bottom of the cooling fan 5 is formed into an air inlet area, cooling air enters the bottom of the cooling fan 5, and then is pressurized by the cooling fan 5 and blown to the heating element from a gap between the top of the cooling fan 5 and the lower surface of the panel 2.

meanwhile, in order to increase the space at the bottom of the heat dissipation fan 5, that is, the space of the air inlet area at the bottom of the heat dissipation fan 5 is increased, in this embodiment, the position of the bottom wall 105 of the bottom case 1, which corresponds to at least the heat dissipation fan 5, protrudes towards the lower side of the bottom case 1 to form the boss 100, it can be understood that the position of the bottom wall 105 of the bottom case 1, which corresponds to at least the heat dissipation fan 5, sinks, and is lower than other positions of the bottom wall 105 of the bottom case 1, that is, the volume of the negative pressure area at the positive bottom of the heat dissipation fan 5 is increased, that is, the air inlet space at the bottom of the heat dissipation fan 5 is increased, thereby reducing the air resistance, increasing the total air inlet amount.

Referring to fig. 2, in the present embodiment, the boss 100 is formed by protruding a position of the bottom wall 105 of the bottom case 1, which is opposite to the heat dissipation fan 5, toward the lower side of the bottom case 1. Of course, in other implementations, a portion of the bottom wall 105 of the bottom case 1 corresponding to the position of the heat dissipation fan 5 may be formed in a sinking manner, or the position of the bottom wall 105 of the bottom case 1 corresponding to the heat dissipation fan 5 and a partial area around the position may be formed in a sinking manner together.

The electromagnetism stove that this embodiment provided, through seting up all fresh air inlets 120 on the user facing lateral wall of drain pan 1, promptly, only set up fresh air inlet 120 at the leading flank of electromagnetism stove drain pan 1, compare with prior art, because the utility model provides a fresh air inlet 120 keeps away from fan pressure zone, and the distance of fresh air inlet distance desktop is than drain pan diapire 105's position height, and fresh air inlet 120 locates the inside and outside pressure difference of wind less to can avoid the ponding of electromagnetism stove during operation desktop to be inhaled the condition emergence in the drain pan 1, prolonged the life of electron device in the electromagnetism stove, avoid the emergence of unsafe accident. Moreover, if the overflow phenomenon occurs during the cooking process, since the air inlet 120 is only opened on the side wall of the bottom case 1 facing the user, that is, the air inlet is disposed close to the operation area (i.e., the front side of the induction cooker), that is, the pot placed on the panel of the induction cooker is far away from the air inlet 120, even if the overflow phenomenon occurs, the soup overflowing from the pot is not easy to flow into the inner cavity of the bottom case 1 through the air inlet 120, so as to further effectively protect the devices in the induction cooker and avoid the occurrence of unsafe accidents. Meanwhile, the lower surface of the heat dissipation fan 5 is formed into an air inlet surface, and the upper surface of the heat dissipation fan 5 is formed into an air outlet surface, that is, the bottom of the heat dissipation fan 5 is formed into an air inlet area, so that cooling air entering from the air inlet hole 120 enters the bottom of the heat dissipation fan 5, is pressurized by the heat dissipation fan 5, is blown out from the top of the heat dissipation fan 5, and is blown to heating elements such as the coil panel 3 and the circuit board assembly 4 to dissipate heat of the heating elements; meanwhile, the boss 100 is formed by protruding the position of the bottom wall of the bottom shell 1, which at least corresponds to the heat dissipation fan 5, towards the lower part of the bottom shell 1, namely, the position of the bottom wall of the bottom shell 1, which at least corresponds to the heat dissipation fan 5, is sunk, so that the volume of a negative pressure area at the positive bottom of the heat dissipation fan 5 is increased, namely, an air inlet space at the bottom of the heat dissipation fan 5 is increased, thereby reducing wind resistance, increasing the total air intake and improving the heat dissipation effect.

Preferably, the distance h between the inner bottom surface of the boss 100 and the air inlet surface of the heat dissipation fan 5 may be set to be 10mm to 25 mm. The air inlet surface of the cooling fan 5 is the lower surface of the fan blade of the cooling fan 5, specifically the lowest position of the lower surface of the fan blade. The arrangement increases the air inlet space at the bottom of the heat radiation fan 5, increases the air inlet amount, and can avoid the situation that the bottom shell 1 is too thick, so that the induction cooker can be developed towards thinning.

Generally, the bottom of the bottom case 1 of the induction cooker has a foot pad, and it can be understood that the outer bottom surface of the boss 100 is not lower than the bottom surface of the foot pad, so that the stability of the induction cooker can be ensured.

Because the exhaust vent of prior art's electromagnetism stove scatters at will along the both sides lateral wall of drain pan, leads to the air-out direction to be more dispersed, influences the wind speed that blows to heating element and leads to the radiating effect to reduce. In this regard, the air outlet 110 of the induction cooker of the present embodiment is specifically opened on the side wall of the bottom case 1 opposite to the air inlet 120, and/or the air outlet 110 is opened on the side of the bottom wall 105 of the bottom case 1 far away from the air inlet 120. That is, the air outlet 110 is disposed on the rear sidewall of the induction cooker, or the air outlet 110 is disposed on the bottom wall 105 of the bottom case 1 near the rear sidewall, or the air outlet 110 is disposed on both the rear sidewall of the induction cooker and the bottom wall 105 of the bottom case 1 near the rear sidewall.

that is, all the air inlet openings 120 of the induction cooker of the present embodiment are located at the front portion of the induction cooker, all the air outlet openings 110 are located at the rear portion of the induction cooker, neither the air inlet openings 120 nor the air outlet openings 110 are formed on the walls of the induction cooker bottom case at both sides, that is, the electromagnetic oven is of a front air inlet and rear air outlet structure, when cooling air outside the electromagnetic oven enters the inner cavity of the bottom case 1 from the air inlet hole 120 under the action of the heat dissipation fan 5, and is pressurized by the heat dissipation fan 5, the wind can not be blown out from other positions without the air outlet 110, but can be blown out from the air outlet 110 concentrated at the position far away from the air inlet 120, the whole flow direction of the air channel of the induction cooker is from the front part to the rear part in the inner cavity of the bottom shell 1, the flow direction of the air channel is approximately in a straight line, the pressure loss of the air flow at the bend is reduced, large air pressure is formed in the induction cooker, the air blowing to the heating element is more concentrated, the air speed is larger, and therefore the heat dissipation effect of the induction cooker is improved.

Moreover, if the overflow phenomenon occurs during the cooking process, when the soup flowing out of the pot flows down from the two sides of the bottom shell 1, the soup cannot enter the inner cavity of the bottom shell 1 because the air inlet holes 120 and the air outlet holes 110 are not formed on the walls of the two sides of the bottom shell 1; since the air inlet 120 is only formed on the side wall of the bottom case 1 facing the user, that is, the air inlet 120 is disposed close to the operation area (i.e., the front side of the induction cooker), that is, the cooker placed on the panel of the induction cooker is far away from the air inlet 120, even if the cooker overflow phenomenon occurs, the soup overflowing from the cooker is not easy to flow into the inner cavity of the bottom case 1 through the air inlet 120, so as to further effectively protect the devices in the induction cooker and avoid the occurrence of unsafe accidents.

Wherein, the bottom case 1 may specifically include: a lower cover and an upper cover positioned above the lower cover. In this embodiment, the lower cover is a cavity structure, and the upper cover may be a frame cover. The side wall of the lower cover is formed as at least part of the side wall of the bottom shell 1, the air inlet 120 is formed on the side wall of the lower cover facing the user, and the air outlet 110 is formed on the side wall of the lower cover away from the air inlet 120 and/or on the bottom wall 105 of the bottom shell 1 away from the air inlet 120. Of course, it is also possible that the upper cover comprises side walls, which are formed as at least part of the side walls of the bottom case 1, in which case the air inlet openings 120 may be provided in particular on the side walls of the upper cover facing the user, and the air outlet openings 110 may be provided in particular on the side walls of the upper cover opposite to the air inlet openings 120. For another example, the upper cover includes a middle cover and an upper cover located above the middle cover, wherein the sidewall of the middle cover is formed as at least a partial sidewall of the bottom case 1, in this case, the air inlet hole 120 may be specifically opened on the sidewall of the middle cover facing the user, and the air outlet hole 110 may be specifically opened on the sidewall of the middle cover opposite to the sidewall on which the air inlet hole 120 is opened. Alternatively, the side wall of the upper cover and the side wall of the lower cover together form at least a part of the side wall of the bottom case 1, in this case, the side walls of the upper cover and the lower cover facing the user may be provided with air inlet holes 120, and the air outlet holes 110 may be provided on the side walls of the upper cover and the lower cover opposite to the side wall provided with the air inlet holes 120.

Wherein, coil panel 3 specifically can be fixed on the upper cover, also can be fixed on the upper cover, perhaps by the centre gripping between upper cover and lower cover, perhaps, fixes the lower surface at the panel, the utility model discloses do not do specifically to this and restrict.

during the concrete implementation, can set up the fresh air inlet 120 to a plurality ofly, a plurality of fresh air inlet 120 intervals are arranged on the lateral wall towards the user of drain pan 1, for example, a plurality of fresh air inlet 120 arrange into the grid form, have not only guaranteed intake and the air inlet homogeneity, and have improved the outward appearance aesthetic feeling of electromagnetism stove. The plurality of air inlet holes 120 may also be arranged in a plurality of rows and columns or in a ring shape. Each of the air inlet holes 120 may be in the shape of a bar, a circle, etc., which is not limited in the present invention. The air outlet holes 110 may also be disposed in a plurality of shapes, for example, the air outlet holes 110 are spaced apart from each other on the side wall of the bottom case 1 opposite to the side wall provided with the air inlet hole 120, for example, the air outlet holes 110 are arranged in a grid shape along the length direction of the side wall, and/or the air outlet holes 110 are spaced apart from each other on the bottom wall of the bottom case 1 away from the air inlet hole 120, for example, the air outlet holes 110 are arranged in a radial shape.

In this embodiment, the inner cavity of the bottom shell 1 has a wind shielding rib 6 therein, and the wind shielding rib 6 divides the inner cavity of the bottom shell 1 into a first cavity 11 in which the coil panel 3, the circuit board assembly 4 and the heat dissipation fan 5 can be installed and a second cavity 12 in which the lamp panel 7 can be installed. That is to say, coil panel 3, circuit board assembly 4 and cooling fan 5 are located first cavity 11, and lamp plate 7 is located second cavity 12.

It should be noted that, here, the wind shielding rib 6 divides the inner cavity of the bottom case 1 into the first cavity 11 and the second cavity 12, the wind shielding rib 6 may completely separate the first cavity 11 from the second cavity 12, or the wind shielding rib 6 may substantially divide the inner cavity of the bottom case 1 into two regions, and the first cavity 11 is not completely separated from the second cavity 12.

During the concrete implementation, the wind blocking rib 6 can be with drain pan 1 integrated into one piece, for example, when drain pan 1 is the plastic drain pan, when drain pan 1 is moulded plastics, integrative injection moulding wind blocking rib 6 in drain pan 1. Of course, the wind shielding rib 6 may be subsequently fixed in the bottom case 1, which is not limited by the present invention.

The air inlet hole 120 is specifically formed in a side wall of the second chamber 12 facing a user, and in order to enable cooling wind entering from the air inlet hole 120 to smoothly enter a cavity where the heat dissipation fan 5 is located, the wind shielding rib 6 is further provided with a vent 60 for communicating the second chamber 12 with the first chamber 11.

through arranging the wind blocking rib 6, the air inlet hole 120 is formed in the side wall of the second chamber 12 facing the user, so that a cold air cavity and a hot air cavity with relative temperature are formed in the inner cavity of the bottom shell 1, and meanwhile, the wind blocking rib 6 is provided with the vent 60, so that cooling wind entering from the air inlet hole 120 can smoothly enter the heat dissipation fan 5 through the vent 60, the air quantity blowing to the heating element is ensured, the cooling wind is effectively utilized, and the heat dissipation effect is further improved; because the electromagnetism stove during operation, the heat in the second cavity 12 of installing lamp plate 7 is very little, sets up fresh air inlet 120 at second cavity 12 for the cooling air temperature that enters into first cavity 11 from second cavity 12 is lower, thereby has further improved the radiating effect.

The ventilation opening 60 is specifically formed in the portion of the wind blocking rib 6 surrounding the periphery of the heat dissipation fan 5, so that the cooling wind entering from the wind inlet hole 120 is directly sucked into the position of the heat dissipation fan 5, the wind inlet path is shorter, and the wind inlet is smoother. Preferably, the ventilation opening 60 is disposed opposite to the air inlet hole 120, so that the flow path of the cooling air entering from the air inlet hole 120 is substantially straight, the delay resistance is reduced, the cooling air can more quickly and smoothly reach the first chamber 11, and the heat dissipation efficiency is further improved.

preferably, the ventilation opening 60 may be extended to the bottom end of the wind screen rib 6. Therefore, the cooling wind entering from the air vent 60 can directly reach the air inlet surface of the heat dissipation fan 5 as much as possible, and then blows to the heating element under the action of the heat dissipation fan 5, and the air inlet speed and the smoothness are further improved.

Further, the top end of the ventilation opening 60 may be located on a plane not higher than the lower surface of the heat dissipation fan 5. That is, the plane of the top end of the ventilation opening 60 is not higher than the lowest position of the air intake surface of the fan blade. If the plane at the top place of vent 60 sets up to the plane that is higher than radiator fan 5's lower surface place, can lead to radiator fan 5 to blow back partial wind to second cavity 12 in, and then lead to this part wind can't blow to heating element such as coil panel 3, circuit board components 4, lead to blowing to heating element's amount of wind diminish, the utility model discloses a plane that the top place that makes vent 60 is less than radiator fan 5's lower surface place plane, perhaps with radiator fan 5's lower surface place plane parallel and level to guarantee to enter into the intake to first cavity 11 from vent 60, further guaranteed the radiating effect.

the specific contour shape of the ventilation opening 60 is not particularly limited, as long as good air intake can be ensured.

wherein, the sidewall of the bottom case 1 may specifically include: a first sidewall 101, a second sidewall 102, a third sidewall 103, and a fourth sidewall 104 connected in this order along a circumferential direction of the bottom case 1. The third sidewall 103 may be disposed opposite to the first sidewall 101, and the second sidewall 102 may be disposed opposite to the fourth sidewall 104, that is, the bottom case 1 of the present embodiment is specifically formed as a square bottom case. Of course, the bottom case 1 may be a circular or elliptical bottom case surrounded by the first side wall 101, the second side wall 102, the third side wall 103, and the fourth side wall 104.

When normal cooking is performed using the induction cooker, the first side wall 101 faces a user, i.e., is formed as a front side wall; the third side wall 103 is remote from the user, i.e. formed as a rear side wall; the second sidewall 102 and the fourth sidewall 104 are formed as left and right sidewalls, respectively. The air inlet hole 120 is opened on the first side wall 101.

Preferably, at least a part of the air outlet holes 110 are formed in the third side wall 103, that is, all the air outlet holes 110 are formed in the third side wall 103, or a part of the air outlet holes 110 are formed in the third side wall 103 and a part of the air outlet holes 110 are formed in the side of the bottom wall close to the third side wall 103, so that the air flow path in the inner cavity of the induction cooker is further ensured to be substantially linear, and the outflow path of the hot air is better and faster.

With reference to fig. 1 to 3, the coil panel 3, the circuit board assembly 4 and the heat dissipation fan 5 may be arranged in a triangle shape as a whole. The cooling fan 5 is located behind the wind blocking rib 6, the coil panel 3 is located between the cooling fan 5 and the third side wall 103, and the circuit board assembly 4 is located between the cooling fan 5 and the fourth side wall 104. Thus, a part of the air discharged by the heat dissipation fan 5 is blown to the coil panel 3, and a part of the air is blown to the circuit board assembly 4, and then the hot air is directly blown out from the air outlet 110 at the rear part of the bottom shell 1.

Since the air outlet 110 is formed at the rear portion of the bottom case 1, the air outlet 110 is not formed in the second sidewall 102 and the fourth sidewall 104 on the two sides, and the air outlet 110 is not formed in the second sidewall 102, so as to prevent the air flow from flowing through the side and not effectively cooling the circuit board assembly 4 and the coil panel 3, thereby causing unnecessary air flow waste; the purpose of not forming the air outlet on the fourth side wall 104 is to avoid the air outlet therein causing the air duct path to change, and to avoid the situation that a large amount of heated air flow which first passes through the coil disk 3 passes through the rear portion of the circuit board assembly 4, and the temperature at this position becomes higher due to the accumulated temperature.

Wherein, the wind screen 6 specifically can include: the first rib section 61 and the second rib section 62 that connect gradually, wherein, first rib section 61 forms the partial cavity wall of second cavity 12, and second rib section 62 encloses and establishes in radiator fan 5's periphery.

preferably, the wind-shielding rib 6 may further include a third rib section 63, one end of the third rib section is connected to the second rib section 62, and the other end of the third rib section 63 extends toward the third side wall 103, or the other end of the third rib section 63 extends toward the junction of the third side wall 103 and the second side wall 102.

Through setting up third muscle section 63, make third muscle section 63 extend towards the direction of third lateral wall 103 or extend towards the junction of third lateral wall 103 and second lateral wall 102 to the width of first cavity 11 has been dwindled, makes the cooling wind that blows to first cavity 11 concentrate more, and is better to heating element's radiating effect.

Of course, in other implementations, the third rib segment 63 may not be provided, and the second rib segment 62 may extend to the second sidewall 102 and be connected to the second sidewall 102.

Further, a blocking rib 8 can be arranged between the coil disc 3 and the heat dissipation fan 5, so that the wind-starting effect is better, and wind can flow towards the coil disc according to a preset path. Wherein, the fender muscle 8 extends to between coil panel 3 and the circuit board subassembly 4, can carry out better direction to wind like this for some of wind can blow to coil panel 3, and some blows to circuit board subassembly 4, guarantees that circuit board subassembly obtains sufficient cooling air flow, improves the radiating effect. Moreover, the existence of the blocking ribs can also reduce the heat radiation between the coil panel 3 and the circuit board assembly 4, and avoid the mutual influence of the heat between the coil panel and the circuit board assembly.

the radiator 40 can be arranged right opposite to the heat radiation fan 5, the blocking rib 8 extends between the coil panel 3 and the radiator 40, the circuit board and the position of the radiator 40 at the front end of the circuit board can obtain enough cooling airflow, and the heat radiation effect of the circuit board assembly 4 is further improved.

finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. an induction cooker comprises a bottom shell (1), and a heat radiation fan (5), a coil panel (3) and a circuit board assembly (4) which are positioned in the bottom shell (1); the bottom shell (1) is provided with an air inlet hole (120) and an air outlet hole (110), and is characterized in that the air inlet hole (120) is formed in the side wall of the bottom shell (1) facing the user;

The lower surface of cooling fan (5) forms to the air inlet face, the upper surface of cooling fan (5) forms the air-out face, the position that corresponds of diapire (105) of drain pan (1) at least cooling fan (5) is towards the below protrusion of drain pan (1) forms boss (100).

2. The induction cooker according to claim 1, wherein the distance between the inner bottom surface of the boss (100) and the air inlet surface of the heat dissipation fan (5) is in the range of 10mm to 25 mm.

3. The induction cooker according to claim 1, wherein a wind shielding rib (6) is arranged in the inner cavity of the bottom shell (1), and the wind shielding rib (6) divides the inner cavity of the bottom shell (1) into a first cavity (11) in which the heat dissipation fan (5), the coil panel (3) and the circuit board assembly (4) can be installed and a second cavity (12) in which the lamp panel (7) can be installed;

The air inlet hole (120) is formed in the side wall of the second chamber (12) facing the user;

And the wind blocking rib (6) is provided with a vent (60) for communicating the second cavity (12) with the first cavity (11).

4. the induction hob according to claim 3, characterized in, that the ventilation opening (60) opens on the part of the wind blocking rib (6) surrounding the periphery of the cooling fan (5);

The ventilation opening (60) is arranged right opposite to the air inlet hole (120).

5. the induction cooker according to claim 3, characterized in that the top of the ventilation opening (60) is located on a plane not higher than the lower surface of the heat dissipation fan (5);

The ventilation opening (60) extends to the bottom end of the wind blocking rib (6).

6. The induction hob according to claim 1, characterized in that the air outlet (110) opens on a side wall of the bottom shell (1) opposite to the air inlet (120) and/or the air outlet (110) opens on a side of the bottom wall (105) of the bottom shell (1) remote from the air inlet (120).

7. The induction hob according to any one of the claims 1 to 6, characterized in, that the side walls of the bottom shell (1) comprise: a first side wall (101), a second side wall (102), a third side wall (103) and a fourth side wall (104) which are sequentially connected along the circumferential direction of the bottom shell (1); the third side wall (103) is arranged opposite to the first side wall (101), and the second side wall (102) is arranged opposite to the fourth side wall (104);

The first side wall (101) faces a user, and the air inlet hole (120) is formed in the first side wall (101);

At least part of the air outlet holes (110) are formed in the third side wall (103).

8. The induction cooker according to claim 7, characterized in that the coil panel (3), the circuit board assembly (4) and the heat dissipation fan (5) are arranged in a triangular shape as a whole;

The coil panel (3) is located between the heat radiation fan (5) and the third side wall (103), and the circuit board assembly (4) is located between the heat radiation fan (5) and the fourth side wall (104).

9. The induction cooker according to claim 7, characterized in that when the inner cavity of the bottom shell (1) is provided with the wind shielding rib (6), the wind shielding rib (6) comprises a first rib section (61) and a second rib section (62) which are connected in sequence; the first rib section (61) forms part of the cavity wall of the second cavity (12), and the second rib section (62) is arranged around the periphery of the heat radiation fan (5);

The wind-blocking rib (6) further comprises a third rib section (63), one end of the third rib section (63) is connected with the second rib section (62), the other end of the third rib section (63) faces towards the direction of the third side wall (103) to extend, or the other end of the third rib section (63) faces towards the third side wall (103) and the joint of the second side wall (102) to extend.

10. the induction cooker according to any one of claims 1 to 6, characterized in that a stop rib (8) is further arranged between the coil panel (3) and the heat dissipation fan (5);

The blocking rib (8) extends to the position between the coil panel (3) and the circuit board assembly (4).