Electromagnetic oven with good heat dissipation performance

Abstract

The utility model discloses an induction cooker with good heat dissipation performance, which comprises an induction cooker base, an upper cover and a panel, a fan, an electromagnetic wire coil, a circuit board, a radiator, a control panel and a cover plate are arranged in the induction cooker base, and an electromagnetic wire coil assembly area and a circuit board assembly area are enclosed on the induction cooker base through a wind shield wall. The electromagnetic wire coil assembly area is covered with the electromagnetic wire coil, the circuit board and the radiator are installed in the circuit board assembly area, the electromagnetic wire coil assembly area is provided with a first air inlet, the circuit board assembly area is provided with a second air inlet and an air outlet, the output end of the fan is communicated with the first air inlet and the second air inlet, and the circuit board assembly area is covered with the cover plate. The induction cooker with the good heat dissipation performance has the advantages of being simple and reasonable in air duct structure, capable of effectively improving the heat dissipation effect and capable of prolonging the service life of the whole machine.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic cookers, in particular to an electromagnetic cooker with good heat dissipation performance. Background Art

[0002] Induction cookers mainly use the alternating magnetic field generated by the electromagnetic wire coil for heating. In order to generate the alternating magnetic field, a high-frequency alternating current needs to be passed into the electromagnetic wire coil, which requires the use of switching elements such as IGBT to control the current passed into the electromagnetic wire coil. This will cause the IGBT, electromagnetic wire coil and other components to generate high heat, so it is necessary to design a corresponding heat dissipation structure on the induction cooker. At present, the induction cookers on the market mainly use heat sinks superimposed on the IGBT and use heat dissipation fans to convectively dissipate heat from the heat sink and electromagnetic wire coil. However, the existing heat dissipation method has poor restraint effect on the air duct, and the airflow will spread to the surroundings. Without increasing the air supply volume, the heat dissipation effect is poor, which will lead to incomplete heat dissipation and rapid performance degradation of the heating element, thereby affecting the life of the entire machine. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide an induction cooker with a simple and reasonable air duct structure, which can effectively improve the heat dissipation effect and extend the service life of the whole machine and has good heat dissipation performance.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An induction cooker with good heat dissipation performance comprises an induction cooker base, an upper cover and a panel arranged on the induction cooker base, a fan, an electromagnetic wire reel, a circuit board, a radiator, a control board and a cover plate are installed in the induction cooker base, an electromagnetic wire reel assembly area and a circuit board assembly area are formed on the induction cooker base by enclosing a windshield wall, the electromagnetic wire reel cover is arranged on the electromagnetic wire reel assembly area, the circuit board and the radiator are installed in the circuit board assembly area, the electromagnetic wire reel assembly area is provided with a first air inlet, the circuit board assembly area is provided with a second air inlet and an air outlet, the output end of the fan is connected with the first air inlet and the second air inlet, and the cover plate is arranged on the circuit board assembly area.

[0006] As a further improvement of the above technical solution:

[0007] The circuit board has a first end and a second end, the first end is correspondingly arranged at the second air inlet, and the heat sink is overlappedly arranged on the first end.

[0008] The windshield wall comprises a first windshield wall and a second windshield wall. The first windshield wall encloses the electromagnetic wire reel assembly area, and the first windshield wall and the second windshield wall enclose the circuit board assembly area.

[0009] The induction cooker base is also provided with a third wind shield wall, and an air inlet area is formed between the side wall of the induction cooker base and the third wind shield wall, and the fan is located in the air inlet area;

[0010] An air outlet area is formed between the side wall of the induction cooker base and the first wind shield wall and the third wind shield wall, and the electromagnetic wire coil assembly area is connected to the air outlet area;

[0011] A control panel assembly area is formed between the side wall of the induction cooker base and the second wind shielding wall, and the control panel is installed in the control panel assembly area.

[0012] An air inlet slot is arranged on the side wall of the induction cooker base corresponding to the air inlet area, and an air outlet slot is arranged on the side wall of the induction cooker base corresponding to the circuit board assembly area and the air outlet area.

[0013] A plurality of groups of first guide plates are arranged at the first air inlet, a plurality of groups of second guide plates are arranged in the electromagnetic wire reel assembly area, and a plurality of groups of third guide plates are arranged at the second air inlet.

[0014] The heights of the first guide plate and the second guide plate are lower than the height of the first wind shielding wall.

[0015] A plurality of water baffles are arranged on the induction cooker base, and the water baffles respectively surround the air inlet slot and the air outlet slot to form a ventilation cavity with an upper opening.

[0016] The upper cover is provided with a display control module, and the display control module is electrically connected to the control board.

[0017] The fan, the electromagnetic wire coil, the circuit board and the control board do not overlap each other in the induction cooker base.

[0018] Compared with the prior art, the advantages of the utility model are:

[0019] The utility model discloses an induction cooker with good heat dissipation performance, on the induction cooker base, an electromagnetic wire drum assembly area and a circuit board assembly area are formed by enclosing an electromagnetic wire drum cover on the electromagnetic wire drum assembly area, and the circuit board and the radiator are installed in the circuit board assembly area. The fan blows cold air to the electromagnetic wire drum assembly area and the circuit board assembly area for heat dissipation at the same time. Under the blocking effect of the wind shield wall, the airflow will not diffuse to the surroundings, and the flow rate is fast, thereby forming two groups of stable air ducts. During the flow of the airflow, convection heat exchange continuously occurs with the electromagnetic wire drum and the circuit board, thereby solving the problem of unsatisfactory heat dissipation effect of the whole induction cooker in the prior art. The air duct structure is simple and reasonable, can effectively improve the heat dissipation effect, and prolong the service life of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the disassembly of the induction cooker.

[0021] Figure 2 This is a schematic diagram of the assembly of the internal components of the induction cooker base.

[0022] Figure 3 This is a schematic diagram of the disassembly of the control panel and cover on the induction cooker base.

[0023] Figure 4 This is a schematic diagram of the disassembly of the electromagnetic wire reel and circuit board on the induction cooker base.

[0024] Figure 5 It is a structural schematic diagram of the induction cooker base.

[0025] Figure 6 This is a schematic diagram of the structure of the induction cooker base from a top view.

[0026] Legend:

[0027] 1. Induction cooker base; 101. Air inlet slot; 102. Air outlet slot; 2. Upper cover; 3. Panel; 4. Fan; 5. Electromagnetic wire reel; 6. Circuit board; 7. Radiator; 8. Control board; 9. Cover plate; 10. Wind shield; 1001. First wind shield; 1002. Second wind shield; 1003. Third wind shield; 11. Electromagnetic wire reel assembly area; 1101. First air inlet; 12. Circuit board assembly area; 1201. Second air inlet; 1202. Air outlet; 13. Air inlet area; 14. Air outlet area; 15. Control board assembly area; 16. First guide plate; 17. Second guide plate; 18. Third guide plate; 19. Water baffle; 20. Display control module. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 6As shown, the induction cooker with good heat dissipation performance of the present embodiment includes an induction cooker base 1, an upper cover 2 and a panel 3 which are covered on the induction cooker base 1, a fan 4, an electromagnetic wire reel 5, a circuit board 6, a radiator 7, a control board 8 and a cover plate 9 are installed in the induction cooker base 1, an electromagnetic wire reel assembly area 11 and a circuit board assembly area 12 are formed on the induction cooker base 1 by enclosing a wind shield wall 10, the electromagnetic wire reel 5 is covered on the electromagnetic wire reel assembly area 11, the circuit board 6 and the radiator 7 are installed in the circuit board assembly area 12, the electromagnetic wire reel assembly area 11 is provided with a first air inlet 1101, the circuit board assembly area 12 is provided with a second air inlet 1201 and an air outlet 1202, the output end of the fan 4 is connected with the first air inlet 1101 and the second air inlet 1201, and the cover plate 9 is covered on the circuit board assembly area 12. The induction cooker base 1 of the induction cooker with good heat dissipation performance is enclosed by a wind shield wall 10 to form an electromagnetic wire drum assembly area 11 and a circuit board assembly area 12. The electromagnetic wire drum 5 is covered on the electromagnetic wire drum assembly area 11, and the circuit board 6 and the radiator 7 are installed in the circuit board assembly area 12. The fan 4 blows cold air to the electromagnetic wire drum assembly area 11 and the circuit board assembly area 12 for heat dissipation at the same time. Under the blocking effect of the wind shield wall 10, the airflow will not diffuse to the surroundings, and the flow rate is fast to form two groups of stable air ducts. During the flow of the airflow, convection heat exchange is continuously carried out with the electromagnetic wire drum 5 and the circuit board 6, thereby solving the problem of unsatisfactory heat dissipation effect of the whole induction cooker in the prior art. The air duct structure is simple and reasonable, which can effectively improve the heat dissipation effect and extend the service life of the whole machine.

[0030] It should be noted that the electromagnetic wire reel 5 is covered on the electromagnetic wire reel assembly area 11, and the cold air in the electromagnetic wire reel assembly area 11 flows from bottom to top through the electromagnetic wire reel 5 for convection heat exchange, and the hot air after heat exchange flows from the top of the electromagnetic wire reel 5 to the air outlet area 14; the cover plate 9 is covered on the circuit board assembly area 12, which can block the hot air after heat exchange in the electromagnetic wire reel assembly area 11, and prevent the hot air from passing through the circuit board assembly area 12 and heating the circuit board 6, that is, the two groups of air ducts perform independent heat dissipation, so that the heat dissipation effect of the electromagnetic wire reel 5 and the circuit board 6 is good.

[0031] Preferably, the circuit board 6 has a first end and a second end, the first end is correspondingly arranged at the second air inlet 1201, and the heat sink 7 is overlapped on the first end. In this embodiment, the overall structure of the circuit board 6 is L-shaped, with a first end and a second end, and the components with a larger heat generation in the circuit board 6 are arranged on the first end. When the circuit board 6 is installed in the circuit board assembly area 12, the first end is located at the second air inlet 1201, and the heat sink 7 is overlapped on the first end and its components. The heat sink 7 is made of heat-conducting materials such as aluminum and copper. By contacting with the components, the heat is transferred from the components to the surface of the heat sink 7, and the cold air blown by the fan 4 is combined with the convection heat transfer on the surface of the heat sink 7, so the heat dissipation effect of the circuit board 6 is good.

[0032] Preferably, the windshield 10 includes a first windshield 1001 and a second windshield 1002 . The first windshield 1001 encloses an electromagnetic wire reel assembly area 11 , and the first windshield 1001 and the second windshield 1002 enclose a circuit board assembly area 12 .

[0033] Preferably, the induction cooker base 1 is further provided with a third wind shield wall 1003, and an air inlet area 13 is enclosed between the side wall of the induction cooker base 1 and the third wind shield wall 1003, and the fan 4 is located in the air inlet area 13; an air outlet area 14 is enclosed between the side wall of the induction cooker base 1 and the first wind shield wall 1001 and the third wind shield wall 1003, and the electromagnetic wire coil assembly area 11 is connected to the air outlet area 14; a control board assembly area 15 is enclosed between the side wall of the induction cooker base 1 and the second wind shield wall 1002, and the control board 8 is installed in the control board assembly area 15. In this embodiment, the internal space of the induction cooker base 1 is divided into the electromagnetic wire coil assembly area 11, the circuit board assembly area 12, the air inlet area 13, the air outlet area 14 and the control board assembly area 15 by the first wind shield wall 1001, the second wind shield wall 1002 and the third wind shield wall 1003, and the space utilization rate is high, and it is convenient for the staff to accurately install the components in the corresponding areas during assembly, which can effectively improve the production efficiency.

[0034] Preferably, an air inlet slot 101 is provided on the side wall of the induction cooker base 1 corresponding to the air inlet area 13, and an air outlet slot 102 is provided on the side wall of the induction cooker base 1 corresponding to the circuit board assembly area 12 and the air outlet area 14. In this embodiment, the air inlet area 13 is connected to the outside through the air inlet slot 101, and the circuit board assembly area 12 and the air outlet area 14 are connected to the outside through the air outlet slot 102. The specific air flow direction is as follows: Figure 6 In the direction indicated by the middle arrow, the wind flow direction of the electromagnetic wire drum assembly area 11 is from the air inlet slot 101 through the air inlet area 13, and is discharged through the first air inlet 1101 and the air outlet area 14 in sequence to the air outlet slot 102; the wind flow direction of the circuit board assembly area 12 is from the air inlet slot 101 through the air inlet area 13, and is discharged through the second air inlet 1201 and the air outlet 1202 in sequence to the air outlet slot 102.

[0035] Preferably, a plurality of groups of first guide plates 16 are provided at the first air inlet 1101, a plurality of groups of second guide plates 17 are provided in the electromagnetic wire drum assembly area 11, and a plurality of groups of third guide plates 18 are provided at the second air inlet 1201. In this embodiment, both the first guide plates 16 and the second guide plates 17 are arc-shaped structures, and the cold air blown out from the fan 4 is impacted and disturbed in the electromagnetic wire drum assembly area 11 under the guidance of the arc-shaped guide plates to form turbulent flow, which can increase the heat exchange time between the cold air and the electromagnetic wire drum 5 and improve the heat exchange efficiency; the third guide plate 18 is a straight plate structure, and the cold air blown out from the fan 4 flows to the fin structure of the radiator 7 under the guidance of the third guide plate 18.

[0036] Preferably, the height of the first guide plate 16 and the second guide plate 17 are lower than the height of the first wind shield wall 1001, that is, in the electromagnetic wire drum assembly area 11, a gap is left between the first guide plate 16 and the second guide plate 17 and the electromagnetic wire drum 5, and the cold air blown out by the fan 4 can flow in a connected and mixed manner in the gap.

[0037] Preferably, the induction cooker base 1 is provided with a plurality of water baffles 19, and the water baffles 19 respectively surround the air inlet slot 101 and the air outlet slot 102 to form a ventilation cavity with an upper opening. In this embodiment, three groups of water baffles 19 are provided on the induction cooker base 1, corresponding to the air inlet slot 101 at the air inlet area 13, the air outlet slot 102 at the air outlet area 14, and the air outlet slot 102 at the circuit board assembly area 12. Since the bottom wall of the induction cooker base 1 is close to the cooking table, water or oil may enter the induction cooker through the air inlet slot 101 or the air outlet slot 102 to cause damage, and the bottom of the water baffle 19 is connected to the induction cooker base 1, forming a ventilation cavity with an upper opening that is not connected at the bottom, and the airflow can enter the induction cooker through the upper opening, and the water or oil is blocked on the outside, which can keep the electrical components inside the induction cooker dry and clean, which is conducive to further extending the service life of the induction cooker.

[0038] Preferably, a display control module 20 is provided on the upper cover 2 , and the display control module 20 is electrically connected to the control board 8 . The user can realize human-computer interaction through the display control module 20 , and the use convenience is high.

[0039] Preferably, the fan 4, the electromagnetic wire coil 5, the circuit board 6 and the control board 8 do not overlap each other in the induction cooker base 1. In this embodiment, from a top view, the fan 4, the electromagnetic wire coil 5, the circuit board 6 and the control board 8 are flatly distributed in different areas of the induction cooker base 1, and do not overlap each other, which can avoid the superposition of heating elements to cause the local area to heat up too quickly. At the same time, the thickness of the induction cooker base 1 can be designed to be thinner and small in size, which is convenient for users to carry.

[0040] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and changes obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An induction cooker with good heat dissipation performance, comprising an induction cooker base (1), an upper cover (2) and a panel (3) arranged on the induction cooker base (1), characterized in that: The induction cooker base (1) is provided with a fan (4), an electromagnetic wire reel (5), a circuit board (6), a radiator (7), a control board (8) and a cover plate (9); the induction cooker base (1) is enclosed by a wind shield wall (10) to form an electromagnetic wire reel assembly area (11) and a circuit board assembly area (12); the electromagnetic wire reel (5) is covered on the electromagnetic wire reel assembly area (11); the circuit board (6) and the radiator (7) are installed in the circuit board assembly area (12); the electromagnetic wire reel assembly area (11) is provided with a first air inlet (1101); the circuit board assembly area (12) is provided with a second air inlet (1201) and an air outlet (1202); the output end of the fan (4) is in communication with the first air inlet (1101) and the second air inlet (1201); and the cover plate (9) is covered on the circuit board assembly area (12).

2. The induction cooker with good heat dissipation performance according to claim 1, characterized in that: The circuit board (6) has a first end and a second end, the first end is arranged correspondingly at the second air inlet (1201), and the heat sink (7) is arranged overlappingly on the first end.

3. The induction cooker with good heat dissipation performance according to claim 1, characterized in that: The windshield wall (10) comprises a first windshield wall (1001) and a second windshield wall (1002); the first windshield wall (1001) encloses the electromagnetic wire reel assembly area (11); and the first windshield wall (1001) and the second windshield wall (1002) enclose the circuit board assembly area (12).

4. The induction cooker with good heat dissipation performance according to claim 3, characterized in that: The induction cooker base (1) is also provided with a third wind shield wall (1003), an air inlet area (13) is formed between the side wall of the induction cooker base (1) and the third wind shield wall (1003), and the fan (4) is located in the air inlet area (13); An air outlet area (14) is formed between the side wall of the induction cooker base (1) and the first wind shield wall (1001) and the third wind shield wall (1003), and the electromagnetic wire coil assembly area (11) is in communication with the air outlet area (14); A control panel assembly area (15) is formed between the side wall of the induction cooker base (1) and the second wind shield wall (1002), and the control panel (8) is installed in the control panel assembly area (15).

5. The induction cooker with good heat dissipation performance according to claim 4, characterized in that: An air inlet slot (101) is provided on the side wall of the induction cooker base (1) corresponding to the air inlet area (13), and an air outlet slot (102) is provided on the side wall of the induction cooker base (1) corresponding to the circuit board assembly area (12) and the air outlet area (14).

6. The induction cooker with good heat dissipation performance according to claim 5, characterized in that: A plurality of groups of first guide plates (16) are provided at the first air inlet (1101), a plurality of groups of second guide plates (17) are provided in the electromagnetic wire reel assembly area (11), and a plurality of groups of third guide plates (18) are provided at the second air inlet (1201).

7. The induction cooker with good heat dissipation performance according to claim 6, characterized in that: The heights of the first guide plate (16) and the second guide plate (17) are lower than the height of the first wind shielding wall (1001).

8. The induction cooker with good heat dissipation performance according to claim 7, characterized in that: The induction cooker base (1) is provided with a plurality of groups of water baffles (19), and the water baffles (19) respectively surround the air inlet slot (101) and the air outlet slot (102) to form a ventilation cavity with an upper opening.

9. The induction cooker with good heat dissipation performance according to claim 1, characterized in that: The upper cover (2) is provided with a display control module (20), and the display control module (20) is electrically connected to the control board (8).

10. The induction cooker with good heat dissipation performance according to any one of claims 1 to 9, characterized in that: The fan (4), the electromagnetic wire reel (5), the circuit board (6) and the control board (8) do not overlap each other in the induction cooker base (1).

Images