CN220442452U - Cooking machine convenient to heat dissipation - Google Patents

Abstract

The utility model discloses a cooking machine convenient for heat dissipation, belongs to the technical field of food processing, and aims to overcome the defect that a circuit board of the existing cooking machine is easy to be overhigh in temperature. The cooking machine comprises a machine body, a pot liner and a stirring device, wherein an electromagnetic wire coil, a fan and a circuit board are arranged in the machine body, the fan and the circuit board are positioned below the electromagnetic wire coil, and the projection of the fan on the vertical direction is staggered with the circuit board; the fan is provided with a rotating shaft which is obliquely arranged relative to the vertical surface, and the rotating shaft is inclined from bottom to top in a direction close to the circuit board, so that the air flow blown by the fan rebounds from the electromagnetic wire coil to the circuit board. The ascending air current of slope that the fan that the slope set up formed blows to the electromagnetic wire dish, and most air currents rebound to the direction that the circuit board was located, and the heat dissipation air current can further flow through the circuit board after to electromagnetic wire dish heat dissipation like this to the heat dissipation to the circuit board, the work of fan has improved the radiating effect of circuit board, avoids the circuit board high temperature.

Description

Cooking machine convenient to heat dissipation

Technical Field

The utility model belongs to the technical field of food processing, and relates to a cooking machine convenient for heat dissipation.

Background

The existing dish frying machine is characterized in that the fan is arranged below the electromagnetic wire coil, the rotating shaft of the fan is vertically arranged, the fan is vertically and upwards blown, air flow blown by the fan mainly flows to the electromagnetic wire coil, air flow flowing to the circuit board is less, the heat dissipation effect of the circuit board is poor, faults caused by overhigh temperature of the circuit board are easily caused, even related plastic parts are melted, components on the surface of the circuit board are burst, and large fault risks and potential safety hazards exist in the use of the circuit board.

Disclosure of Invention

The utility model provides a cooking machine convenient for heat dissipation aiming at the problems in the prior art, and aims to overcome the defect that a circuit board of the existing cooking machine is easy to be overhigh in temperature.

The utility model is realized in the following way:

a dish frying machine convenient for heat dissipation comprises a machine body, a pot liner arranged in the machine body and a stirring device for turning over food materials, wherein an electromagnetic wire coil, a fan and a circuit board are arranged in the machine body, the fan and the circuit board are arranged below the electromagnetic wire coil, and the projection of the fan on the vertical direction is staggered with the circuit board;

the fan is provided with a rotating shaft which is obliquely arranged relative to the vertical surface, and the rotating shaft is obliquely arranged from bottom to top in a direction close to the circuit board, so that air flow blown out by the fan rebounds from the electromagnetic wire coil to the circuit board.

The electromagnetic wire coil is generally horizontally arranged, the upward air flow of the inclination formed by the obliquely arranged fan is blown to the electromagnetic wire coil, most of the air flow does not rebound vertically downwards, but rebound towards the direction of the circuit board, so that the heat dissipation air flow can further flow through the circuit board after the heat dissipation of the electromagnetic wire coil, and the air around the circuit board has larger fluidity so as to facilitate the heat dissipation of the circuit board. The work of fan has improved the radiating effect of circuit board, avoids the circuit board high temperature, reduces circuit board fault risk, also avoids the plastic part high temperature on the circuit board or near the circuit board and melts, avoids circuit board surface components and parts to explode because of the high temperature, reduces circuit board potential safety hazard.

Preferably, the circuit board comprises a board body and a control element arranged on the board body, wherein the board body is positioned below the geometric center of the fan. The fan at the higher position is closer to the electromagnetic wire coil, and when the air flow blown by the fan reaches the electromagnetic wire coil, the air flow still has larger kinetic energy, so that the diffusion of rebound air flow can be reduced, and the rebound air flow flows more towards the direction of the circuit board, so that the heat of the circuit board can be better dissipated.

Preferably, a mounting seat is arranged at the bottom of the machine body, the fan is fixed on an inclined plane at the upper end of the mounting seat, and the rotating shaft is perpendicular to the inclined plane. The mounting seat supports the fan through the inclined surface, so that the obliquely-mounted fan is more stable.

Preferably, a flow guiding structure is arranged at the bottom of the machine body, and the flow guiding structure extends from a position corresponding to one end of the fan away from the circuit board to the direction of the circuit board, so that part of air flow blown out by the fan flows to the circuit board through the guide of the flow guiding structure. The fan has the side direction air-out, and the guide structure extends to the circuit board direction from the corresponding position of the one end that the fan kept away from the circuit board, and the guide structure can block the one end that the fan kept away from the circuit board from blowing out the air current and flowing dorsad circuit board, reduces the amount of wind and runs off, leads more air current to lead to the circuit board, further improves the mobility of circuit board surrounding air, more makes full use of the air current that the fan produced, improves the radiating effect of fan to the circuit board. The flow guiding structure extends continuously from the periphery of the fan to the circuit board, and can collect air flow blown out by the corresponding fan on the extending path, so that more lateral air outlet energy of the fan can be utilized.

Preferably, the flow guiding structure extends from a position corresponding to one end of the fan away from the circuit board to two sides of the fan, the flow guiding structure extends to the air outlet end along the rotation direction of the fan, and the flow guiding structure extends to the air inlet end opposite to the rotation direction of the fan. Thus, the diversion structure forms a semi-surrounding structure to block the periphery of the fan, so that more lateral wind outlet energy of the fan can be utilized.

Preferably, the air outlet end of the flow guiding structure corresponds to the control element of the circuit board. Therefore, the air flow flowing from the flow guiding structure to the circuit board can radiate the control element on the circuit board more pertinently, the control element is a main heating element on the circuit board, and radiating efficiency can be improved by radiating the control element.

Preferably, the flow guiding structure is a fan cover fixed at the bottom of the machine body through a screw or a clamping structure; the diversion structure is fixed with the bottom part of the machine body in a split manner, so that the diversion structure is beneficial to processing a more complex structure, the diversion structure is convenient to restrict the flow of air flow better, the out-diffusion of the air flow to the diversion structure is reduced, and the air flow flows to the circuit board more.

Or the flow guiding structure is a flow guiding rib integrally formed at the bottom of the machine body. The flow guiding structure is integrally formed at the bottom of the machine body, and has simple structure and convenient processing.

Preferably, a part of the top of the flow guiding structure is shielded above one end of the fan away from the circuit board. Because the end of the fan away from the circuit board is positioned below the edge of the electromagnetic wire coil, the air flow blown upwards by the fan obliquely at the position is not easy to flow onto the electromagnetic wire coil, and rebound air flow towards the circuit board is difficult to generate. In addition, even if the air flow blown out obliquely upwards from the position of the fan flows onto the electromagnetic wire coil to form rebound air flow, the rebound air flow is difficult to flow to the circuit board because the rebound air flow is far away from the circuit board, and the rebound air flow is easy to flow to the fan, so that the rebound air flow obliquely downwards can interfere the air flow blown out by the fan and prevent the air flow obliquely upwards blown out by the fan from flowing to the electromagnetic wire coil, and the heat dissipation effect can be influenced. And part of the top of the flow guide structure is shielded above one end of the fan away from the circuit board, the flow far away from the circuit board is blocked by the flow guide structure and is rebounded through the electromagnetic wire coil, and the flow is further reversely guided to the circuit board by the flow guide structure, so that the heat dissipation effect of the fan on the circuit board is improved.

Preferably, the top of the flow guiding structure is provided with a convex rib protruding downwards so as to guide the air flow to the air outlet end of the flow guiding structure. The convex ribs can prevent the air flow from separating from the flow guiding structure, so that the air flow flows more towards the direction of the circuit board, and the heat dissipation effect of the fan on the circuit board is further improved.

Preferably, an air inlet is formed in the bottom of the machine body below the fan and/or below the circuit board, and an air outlet is formed in the side wall, far away from the fan, of the machine body. When the air inlet is arranged below the circuit board, air with lower temperature outside the external machine body flows to the fan after passing through the lower part of the circuit board, so that the air flow is firstly used for primarily cooling the circuit board, and the heat dissipation effect of the circuit board is improved. The air flow blown out by the fan mainly flows in the direction far away from the fan, and can directly flow out from the air outlet on the side wall far away from the fan on the machine body after flowing through the circuit board, so that the smoothness of air flow circulation is better ensured, the air flow with higher temperature is ensured to flow out of the machine body in time, and the heat dissipation effect is improved.

According to the dish frying machine convenient to heat dissipation, the air flow which is formed by the obliquely arranged fan and is obliquely upwards blown to the electromagnetic wire coil, and most of the air flow rebounds towards the direction of the circuit board, so that the heat dissipation air flow further flows through the circuit board after the electromagnetic wire coil is cooled, the air around the circuit board has higher fluidity, the circuit board is conveniently cooled, the heat dissipation effect of the circuit board is improved by the operation of the fan, and the overhigh temperature of the circuit board is avoided.

Drawings

FIG. 1 is a schematic cross-sectional view of a cooker;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic top view of a partial structure of the cooker;

fig. 4 is a schematic sectional structure of a part mechanism of the cooker.

The drawings are marked with the following description: 100. a body; 110. a base; 111. a mounting base; 112. a connecting seat; 113. an air outlet; 114. an air inlet; 120. a machine head; 200. a pot liner; 300. a stirring device; 310. a motor; 320. a stirring arm; 400. an electromagnetic wire coil; 500. a fan; 600. a circuit board; 610. a control element; 620. a plate body; 700. a flow guiding structure; 710. an air outlet end; 720. an air inlet end; 730. convex ribs.

Detailed Description

The following detailed description of the embodiments of the present utility model is provided with reference to the accompanying drawings, so that the technical scheme of the present utility model can be understood and mastered more easily. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The embodiment provides a dish frying machine convenient for heat dissipation, as shown in fig. 1, comprising a machine body 100, a pot liner 200 arranged in the machine body 100 and a stirring device 300 for turning over food materials, wherein the machine body 100 further comprises a machine base 110 and a machine head 120, the pot liner 200 is arranged in the machine base 110, the stirring device 300 further comprises a motor 310 arranged in the machine head 120 and a stirring arm 320 connected to the motor 310, the stirring arm 320 extends into the pot liner 200, and the motor 310 drives the stirring arm 320 to rotate so as to turn over the food materials in the pot liner 200.

As shown in fig. 1 to 4, an electromagnetic wire coil 400, a fan 500 and a circuit board 600 are arranged in the machine body 100, the fan 500 and the circuit board 600 are positioned below the electromagnetic wire coil 400, and the projection of the fan 500 in the vertical direction is staggered with the circuit board 600; the fan 500 has a rotation shaft inclined with respect to a vertical plane, and the rotation shaft is inclined from bottom to top in a direction approaching the circuit board 600, so that the air current blown by the fan 500 is bounced from the electromagnetic wire coil 400 to the circuit board 600.

The electromagnetic coil 400 is generally horizontally arranged, and the air flow formed by the obliquely upward air flow formed by the obliquely arranged fan 500 is blown to the electromagnetic coil 400, so that most of the air flow does not rebound vertically downwards, but rebound towards the direction of the circuit board 600, and the heat dissipation air flow further flows through the circuit board 600 after the heat dissipation of the electromagnetic coil 400, so that the air around the circuit board 600 has higher fluidity, and the heat dissipation of the circuit board 600 is facilitated. In fig. 1, the dashed lines with arrows are illustrative of the rebound paths of the air flow. The operation of the fan 500 improves the heat dissipation effect of the circuit board 600, avoids overhigh temperature of the circuit board 600, reduces the fault risk of the circuit board 600, also avoids melting of plastic parts on the circuit board 600 or near the circuit board 600 due to overhigh temperature, avoids explosion of components on the surface of the circuit board 600 due to overhigh temperature, and reduces the potential safety hazard of the circuit board 600.

As shown in fig. 3, the circuit board 600 includes a board 620 and a control element 610 disposed on the board 620, where the board 620 is located below the geometric center of the fan 500, and the control element may be an IGBT module. The higher position fan 500 is closer to the electromagnetic coil 400, and when the air flow blown by the fan 500 reaches the electromagnetic coil 400, the air flow still has larger kinetic energy, so that the diffusion of the rebound air flow can be reduced, and the rebound air flow flows more towards the direction of the circuit board 600, so that the heat dissipation of the circuit board 600 is better. The lower circuit board 600 is farther from the electromagnetic coil 400, reducing the impact of the electromagnetic coil 400 on the circuit board 600. In alternative embodiments, the plate 620 may be positioned higher than the geometric center of the fan 500.

As shown in fig. 3 and 4, the bottom of the machine body 100 is provided with a mounting seat 111, the fan 500 is fixed on an inclined surface at the upper end of the mounting seat 111, and the rotating shaft is perpendicular to the inclined surface. The mount 111 supports the fan 500 by tilting the surface so that the fan 500 mounted in a tilted manner is more stable. In the present embodiment, the connection bases 112 are fixed on two mounting bases 111 distributed on two sides of the fan 500, and the fan 500 is suspended and fixed on the connection bases 112 by screws. In alternative embodiments, the fan 500 may be secured directly to the mount 111.

As shown in fig. 3, a flow guiding structure 700 is disposed at the bottom of the machine body 100, and the flow guiding structure 700 extends from a position corresponding to one end of the fan 500 away from the circuit board 600 toward the circuit board 600, so that a part of the airflow blown by the fan 500 flows toward the circuit board 600 through the guiding of the flow guiding structure 700. The fan 500 has lateral air outlet, the flow guiding structure 700 extends towards the direction of the circuit board 600 from the corresponding position of one end of the fan 500 away from the circuit board 600, the flow guiding structure 700 can prevent the air flow blown out by one end of the fan 500 away from the circuit board 600 from flowing back to the circuit board 600, the air loss is reduced, more air flows are led to the circuit board 600, the fluidity of air around the circuit board 600 is further improved, the air flows generated by the fan 500 are more fully utilized, and the heat dissipation effect of the fan 500 on the circuit board 600 is improved. The flow guiding structure 700 extends continuously from the periphery of the fan 500 to the circuit board 600, and the flow guiding structure 700 can collect the air flow blown by the corresponding fan 500 on the extending path, so that more lateral air outlet energy of the fan 500 can be utilized.

As shown in fig. 3, the air guiding structure 700 extends from a position corresponding to one end of the fan 500 away from the circuit board 600 to two sides of the fan 500, the air guiding structure 700 extends to the air outlet end 710 along the rotation direction of the fan 500, and the air guiding structure 700 extends to the air inlet end 720 opposite to the rotation direction of the fan 500. The deflector structure 700 thus forms a semi-enclosed structure that blocks the periphery of the fan 500 so that more lateral wind out of the fan 500 can be utilized.

As shown in fig. 3, the air outlet end 710 of the air guiding structure 700 corresponds to the control element 610 of the circuit board 600. In this way, the air flow flowing from the flow guiding structure 700 to the circuit board 600 dissipates heat of the control element 610 on the circuit board 600 more specifically, and the control element 610 is a main heating element on the circuit board 600, so that the heat dissipation efficiency can be improved by dissipating heat of the control element 610. The circuit board 600 is provided with cooling fins, and the control element 610 and the cooling fins are installed together, and the air outlet 710 of the air guiding structure 700 corresponds to the control element 610 and also corresponds to the cooling fins. In other alternative embodiments, the air inlet end 720 of the flow guiding structure 700 corresponds to the control element 610, and when part of air enters the flow guiding structure 700 from the air inlet end 720, the air flows through the control element 610, so that a better cooling effect can be achieved.

As shown in fig. 3, the air guiding structure 700 is a fan cover fixed to the bottom of the machine body 100 by screws; the guide structure 700 is fixed with the bottom part of the machine body 100, which is beneficial for the guide structure 700 to process more complex structures, is convenient for the guide structure 700 to better restrict the flow of air flow, reduces the outward diffusion of the air flow to the guide structure 700, and leads the air flow to the circuit board 600 more. In other alternative embodiments, the flow guiding structure 700 may be fixed to the bottom of the machine body 100 by a clamping structure. In other alternative embodiments, the flow guiding structure 700 may be a flow guiding rib integrally formed at the bottom of the machine body 100, and the flow guiding structure 700 is integrally formed at the bottom of the machine body 100, which is simple in structure and convenient to process.

As shown in fig. 2 and 3, a portion of the top of the flow guiding structure 700 is shielded above an end of the fan 500 away from the circuit board 600. Since the end of the fan 500 away from the circuit board 600 is located below the edge of the electromagnetic coil 400, the air flow blown obliquely upward from the position of the fan 500 is not easy to flow onto the electromagnetic coil 400, and it is difficult to generate a rebound air flow toward the circuit board 600. In addition, even if the air current blown out obliquely upward from the position of the fan 500 flows onto the electromagnetic coil 400 to form a rebound air current, the rebound air current is difficult to flow toward the circuit board 600 because the rebound air current is far from the circuit board 600, and the rebound air current is easy to flow toward the fan 500, so that the rebound air current blown out obliquely downward from the fan 500 interferes with the air current blown out obliquely upward from the fan 500, and the obliquely upward air current blown out from the fan 500 is blocked from flowing toward the electromagnetic coil 400, thereby affecting the heat dissipation effect. The top of the flow guiding structure 700 is partially covered above one end of the fan 500 away from the circuit board 600, the flow of air far away from the circuit board 600 is blocked by the flow guiding structure 700 and is rebounded by the electromagnetic wire coil 400, and the flow of air is further reversely guided to the circuit board 600 by the flow guiding structure 700, so that the heat dissipation effect of the fan 500 on the circuit board 600 is improved.

As shown in fig. 2 and 3, the top of the flow guiding structure 700 has a downward protruding rib 730 to guide the air flow to the air outlet end 710 of the flow guiding structure 700. The ribs 730 can block the air flow from separating from the flow guiding structure 700, so that the air flow flows more toward the circuit board 600, and the heat dissipation effect of the fan 500 on the circuit board 600 is further improved.

Further, the bottom of the machine body 100 is provided with an air inlet 114 below the fan 500 and below the circuit board 600, and the machine body 100 is provided with an air outlet 113 at least on a side wall far away from the fan 500. When the air inlet 114 is provided below the circuit board 600, the air with a lower temperature outside the external machine body 100 flows to the fan 500 after passing below the circuit board 600, so that the air flow firstly performs preliminary cooling on the circuit board 600, and the heat dissipation effect on the circuit board 600 is improved. The air flow blown out by the fan 500 mainly flows in a direction far away from the fan 500, and after flowing through the circuit board 600, the air flow can directly flow out from the air outlet 113 on the side wall of the machine body 100 far away from the fan 500, so that the smoothness of air flow circulation is better ensured, the air flow with higher temperature is ensured to flow out of the machine body 100 in time, and the heat dissipation effect is improved. In alternative embodiments, the air intake 114 may be disposed solely under the fan 500 or under the circuit board 600.

In the description of the present utility model, it should be understood that the terms "center," "lateral," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be understood by those skilled in the art that, although the embodiments of the present utility model are disclosed above, the embodiments are merely adopted for the purpose of facilitating understanding of the embodiments of the present utility model, and are not intended to limit the embodiments of the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the embodiments of the utility model, but the scope of the embodiments of the utility model is defined by the appended claims.

Claims (10)

1. A dish frying machine convenient for heat dissipation comprises a machine body, a pot liner arranged in the machine body and a stirring device for turning over food materials, wherein an electromagnetic wire coil, a fan and a circuit board are arranged in the machine body, the fan and the circuit board are arranged below the electromagnetic wire coil, and the projection of the fan on the vertical direction is staggered with the circuit board;

the electromagnetic wire coil is characterized in that the fan is provided with a rotating shaft which is obliquely arranged relative to the vertical surface, and the rotating shaft is obliquely arranged from bottom to top in a direction approaching to the circuit board, so that the air flow blown out by the fan bounces from the electromagnetic wire coil to the circuit board.

2. A machine for cooking which facilitates heat dissipation as defined in claim 1, wherein the circuit board includes a plate and a control element disposed on said plate, said plate being positioned below the geometric center of said fan.

3. The cooking machine convenient for heat dissipation according to claim 1, wherein a mounting seat is arranged at the bottom of the machine body, the fan is fixed on an inclined surface at the upper end of the mounting seat, and the rotating shaft is perpendicular to the inclined surface.

4. The cooking machine with convenient heat dissipation according to claim 1, wherein a flow guiding structure is arranged at the bottom of the machine body, and the flow guiding structure extends from a position corresponding to one end of the fan away from the circuit board to the direction of the circuit board, so that part of air flow blown out by the fan flows to the circuit board through the guiding of the flow guiding structure.

5. The cooking machine with heat dissipation facilitating function according to claim 4, wherein the guide structure extends from a position corresponding to one end of the fan away from the circuit board to two sides of the fan, the guide structure extends to the air outlet end along a rotation direction of the fan, and the guide structure extends to the air inlet end against the rotation direction of the fan.

6. The cooking machine capable of facilitating heat dissipation according to claim 4, wherein the air outlet end of the flow guiding structure corresponds to the control element of the circuit board.

7. The cooking machine with convenient heat dissipation according to claim 4, wherein the flow guiding structure is a fan cover fixed at the bottom of the machine body through a screw or a clamping structure;

or the flow guiding structure is a flow guiding rib integrally formed at the bottom of the machine body.

8. A cooking machine with heat dissipation function according to claim 4, wherein a portion of the top of said flow guiding structure is covered above an end of said fan remote from said circuit board.

9. A cooking machine with convenient heat dissipation as set forth in claim 4, wherein the top of the air guiding structure has a downward protruding rib for guiding the air flow to the air outlet end of the air guiding structure.

10. A cooking machine with convenient heat dissipation according to any one of claims 1-9, wherein the bottom of the machine body is provided with an air inlet below the fan and/or below the circuit board, and the machine body is provided with an air outlet at least on a side wall far from the fan.