WO2019001211A1

WO2019001211A1 - Induction cooker having air duct with high heat dissipation performance

Info

Publication number: WO2019001211A1
Application number: PCT/CN2018/089193
Authority: WO
Inventors: 孙宜芳; 黄骅; 邓永红
Original assignee: 杭州启厨智能科技有限公司
Priority date: 2017-06-27
Filing date: 2018-05-31
Publication date: 2019-01-03
Also published as: CN107228388B; CN107228388A

Abstract

Provided is an induction cooker having an air duct with high heat dissipation performance. The induction cooker comprises a bottom shell (1), a middle frame (5), a panel (6), a fan (7) and a wire coil (4), wherein the bottom shell (1) and the middle frame (5) are respectively provided with bottom shell air partitions (12; 13) and middle frame air partitions (51; 52) cooperating with each other for sealing, and the fan (7) is provided with a fan lower cover plate (2) and a fan upper cover plate (3). By means of the mutual cooperation between the bottom shell air partitions (12; 13), the middle frame air partitions (51; 52), the fan lower cover plate (2), the fan upper cover plate (3), the wire coil (4) and the panel (6), an air inlet area and an air outlet area, completely isolated from each other, are formed inside the induction cooker. The induction cooker has a compact structure and good cooling effects.

Description

Induction cooker with high heat dissipation air duct

Technical field

The invention relates to an induction cooker, in particular to an induction cooker having a high heat dissipation air passage.

Background technique

As a convenient electronic cooker, Induction Cooker is a common tool for cooking food in modern homes. It can be used for cooking, frying, frying, steaming, frying and other cooking operations. It has high efficiency, small volume, no open flame, no smoke, and weight. Light, low noise, energy saving, no pollution to the environment, safety and hygiene. The induction cooker adopts the principle of magnetic field induced eddy current heating, and uses the current to generate a magnetic field through the coil. When the magnetic field lines in the magnetic field pass through the bottom of the iron containing pot, numerous small eddy currents are generated, so that the pot body itself heats up at a high speed, and then the food in the pot is heated. .

Although the induction cooker has various advantages, since the induction cooker itself uses electromagnetic heating to work with heat, the inside of the induction cooker generates heat due to heat-generating components such as IGBT, BG chip, and reel. As shown in Figure 1, the current products on the market, such as the US Induction Cooker, Jiuyang Induction Cooker, Galanz Induction Cooker and other air ducts all use the bottom or one side of the air, using an axial fan, part of the fan blade wind forced through the top surface of the induction cooker product There are two shortcomings in changing the flow direction of the wind. The disadvantage is that the fan selected is loud, the air volume is large, the wind pressure is small, and the fan noise and heat dissipation balance cannot be solved well. The disadvantage is the product bottom case. In order to adapt to the axial air inlet of the axial fan, the structure of the air outlet on one side or both sides of the product is affected. How to improve the internal heat reduction effect of the induction cooker has become an increasingly important issue for induction cooker products.

Summary of the invention

The invention solves the technical problem that the heat dissipation effect of the electromagnetic oven in the prior art is not good, and the heat dissipation performance and the volume cannot be balanced. The invention provides an induction cooker with a high heat dissipation air passage, including a bottom provided from the bottom up. a shell, a middle frame, a panel, a fan, a coil; the bottom shell is respectively provided with an air inlet and an air outlet at a lateral direction and a bottom wind wall at a bottom thereof; the fan is disposed on the bottom shell and laterally A fan lower cover and a fan upper cover are respectively arranged on the upper side, and the fan lower cover is connected with the bottom shell wind wall and forms a separation belt together with the bottom shell wind wall; the middle frame cover is disposed on the bottom case and in the bottom case The middle wall of the wind wall is provided with a middle frame wind wall, and the middle frame is further provided with a middle frame cover; the wire reel is disposed above the fan, and the upper part of the fan upper cover is closely attached to the wire reel and the middle frame cover respectively. And a channel is provided between the middle frame cover and the fan for the cooling air to enter the fan; the panel cover is disposed above the middle frame and the wire tray, and the bottom shell, the bottom shell wind wall, the middle frame wind wall, the middle frame The cover, the fan lower cover, the fan upper cover, the reel, and the panel cooperate with each other to insulate the inside of the induction cooker Compartment of air inlet region and the region.

The invention is skillfully added to the components of the bottom shell, the middle frame, the fan, the coil plate and the panel of the induction cooker, and the structure is added to the components reasonably, and the inside of the induction cooker is perfectly divided into the inlet air zone and the air outlet zone to realize the lateral air inlet. And the lateral wind, the air inlet and the outlet air do not interfere with each other, the structure is compact, the volume is small, and the heat dissipation effect is good.

Further, the two connected sides of the bottom case are air inlets, and the corresponding two sides are air outlets.

Different from the bottom of the induction cooker or one side of the prior art, the design adopted by the invention enables the invention to adopt the air exiting on both sides of the air inlet, which greatly improves the throughput of the cooling wind, so that the cooling effect is obviously improved.

Further, the bottom shell wind wall comprises a bottom shell upper wind wall and a bottom shell left wind wall, and the two ends of the fan lower cover are respectively connected with the bottom shell upper wind wall and the bottom shell left wind wall, wherein the middle frame wind wall corresponds to It is set as a middle frame upper wind wall and a middle frame left wind wall, and the fan is disposed at one end of the intersection of the two inlet side faces of the bottom case, the bottom case, the bottom case upper wind wall, the bottom case left wind wall, the middle frame upper wind wall, The middle left wind wall, the middle frame cover, the fan lower cover, the fan upper cover, the reel, and the panel cooperate to separate the internal space of the induction cooker into an air inlet zone and an air outlet zone.

The wind wall is set as the upper wind wall and the left wind wall, and the two wind walls are connected by the fan lower cover, so that a complete isolation belt is formed near the two adjacent air inlet sides, so that the internal space structure of the induction cooker is further improved. To be reasonable, the air inlet zone and the outlet zone do not affect each other, and the heat dissipation effect is improved.

Further, the fan upper cover comprises an upper cover panel, a wire spool sealing strip, a sealing baffle and a middle frame sealing strip, wherein the wire disc sealing strip, the sealing baffle and the middle frame sealing strip are higher than the upper cover panel, wherein the upper cover panel The frame sealing strip and the middle frame cover are sealingly connected, the wire sealing strip is connected to the wire sealing, and the sealing baffle is located between the middle frame sealing strip and the wire sealing strip, the bottom shell and the bottom shell The upper wall, the bottom left wind wall, the middle frame upper wind wall, the middle frame left wind wall, the middle frame cover, the middle frame sealing strip, the sealing baffle, the reel sealing strip, the reel and the panel cooperate to separate the internal space of the induction cooker It is the inlet and outlet zones.

After the fan upper cover and the middle frame cover and the wire reel are in sealing contact, the sealing property should be ensured, and the air inlet passage of the fan should be left. The upper cover of the fan is set higher than the wire sealing strip of the upper cover panel and the sealing baffle. The middle frame sealing strip, on the one hand, enables sealing contact between the middle frame cover and the middle frame sealing strip and between the reel and the reel sealing strip, and on the other hand, because they are higher than the upper cover panel, the upper cover panel and An enlarged space is formed between the middle cover plates, and the cooling wind enters the air inlet area and is blocked by the wind wall and the fan lower cover, and enters the fan from the space between the fan upper cover and the middle frame cover.

The inside of the induction cooker utilizes a bottom shell, a bottom shell upper wind wall, a bottom shell left wind wall, a middle frame upper wind wall, a middle frame left wind wall, a middle frame cover, a middle frame sealing strip, a sealing baffle, a reel sealing strip, a reel, The panel cooperates to separate the internal space of the induction cooker into the air inlet zone and the air outlet zone. After entering the air inlet, the wind enters the fan through the space between the fan upper cover and the middle frame cover, and passes through the fan to reach the air outlet zone. Completely isolated to avoid hot air recirculation, the positive pressure zone and the negative pressure zone of the wind are completely blocked, while the windward area is bounded by the wind wall to the IGBT, BG, and radiator, and the other part of the wind blows other heating components on the PCB. To achieve a balance of heat dissipation. At the same time, the service life of the induction cooker is greatly extended. IGBT is an insulated gate bipolar transistor, BG is a rectifier bridge stack, and PCB is a circuit board.

Further, a wire wind wall is further disposed around the wire reel, and the wire wind wall and the sealing baffle are attached.

The wire tray is provided with the wire wind wall, so that the fit between the wire reel and the fan upper cover is more sealed, which ensures that the air inlet zone and the air outlet zone are isolated from each other without mutual interference, thereby further improving the heat dissipation effect.

Further, the fan is a backward blade centrifugal fan without a volute.

The backward blade centrifugal fan without a volute has the characteristics of low noise, large air volume and wide wind pressure, and further improves the heat dissipation effect and small volume effect of the invention.

Further, the fan upper cover and the fan lower cover are disposed according to a volute curve of the fan fan.

The upper cover of the fan and the lower cover of the fan are arranged according to the volute curve of the fan fan, so that the internal structure of the induction cooker is more reasonable and compact, and the cooling effect is improved, the volume of the induction cooker is smaller, the flow of the wind is more favorable, and the heat dissipation effect is further improved.

Further, the air inlet is a long hole-like structure.

The air inlet is a long strip structure which is beneficial to reduce the wind resistance, increase the air intake of the cooling air, and improve the heat dissipation effect.

Further, the fan enters the air axially and radially exits the wind.

Further, the fan is provided with a cushion rubber pad.

Setting the rubber pad can reduce the noise of the fan and increase the service life of the fan.

Compared with the prior art, the invention has the following advantages and effects:

1. Ingenious design, reasonable layout and compact structure.

2, the heat dissipation effect is good.

3, small size.

4. Low noise and long service life.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a common design structure of an induction cooker in the prior art.

2 is a schematic structural view of an induction cooker having a high heat dissipation air passage according to the present invention.

Figure 3 is a top plan view of the present invention.

Figure 4 is a schematic view of the structure of the bottom case and the periphery of the fan.

Figure 5 is a schematic bottom view of the middle frame.

Figure 6 is a perspective view of the middle frame.

Figure 7 is a top plan view of the fan upper cover.

Figure 8 is a perspective view of the upper cover of the fan.

Figure 9 is a schematic view of the upper cover and the middle frame of the fan.

Figure 10 is a schematic view taken along the line B-B of Figure 3;

Figure 11 is a schematic view taken along line A-A of Figure 3;

Figure 12 is a perspective view showing the assembly of the frame fan reel in the bottom case.

Figure 13 is a schematic view taken along line C-C of Figure 12;

Fig. 14 is a schematic view showing a long hole-like structure of the air outlet of the air inlet.

Figure 15 is a schematic plan view of the wind in a top view.

Figure 16 is a schematic view of the flow direction of the wind.

Labeling instructions:

1-Bottom case 2-Fan lower cover 3-Fan upper cover 4-wire reel 5-Medium frame 6-Panel 7-Fan 12-Bottom left wind wall 13-Bottom wind up wall 31-Upper cover panel 32-Medium frame seal strip 33-Line disc seal strip 34-Sealing baffle 41-Line disc wind wall 51-Middle frame windward wall 52-Middle frame left wind wall

Detailed ways

The patent is described in detail below in conjunction with specific embodiments:

Embodiment 1 As shown in FIG. 2, FIG. 3 and FIG. 4, the embodiment includes a bottom case 1, a middle frame 5, a panel 6, a fan 7, and a reel 4. The bottom case 1 is respectively provided with an air inlet and an air outlet, and a bottom portion. The bottom shell wind wall is arranged, the middle frame 5 is disposed on the bottom shell 1, and the middle frame wind wall is arranged at a position corresponding to the bottom shell wind wall, the middle frame is further provided with a middle frame cover, and the fan 7 is disposed in the bottom case 1 The fan lower cover 2 and the fan upper cover 3 are respectively disposed on one side and the upper part of the fan, and the fan lower cover 3 and the bottom case wind wall are connected to the bottom case 1 to form an isolation belt, and one side of the isolation belt is an air inlet area, and another One side is an air outlet area, and the reel 4 is disposed above the fan 7. The top of the fan upper cover 3 is closely attached to the reel 4 and the middle frame cover respectively, and a passage is provided between the middle frame cover and the fan 7 for cooling. The wind enters the fan 7, and the panel 6 is placed over the middle frame 5 and the reel 4. The bottom case 1, the bottom shell wind wall, the middle frame wind wall, the fan lower cover 2, the fan upper cover 3, the reel 4, and the panel 6 cooperate to form an internal air duct of the induction cooker, and the internal space of the induction cooker is divided into an air inlet area and an air outlet. Area.

Embodiment 2 In this embodiment, the two connected sides of the bottom case 1 are air inlets, and the corresponding two side surfaces are air outlets.

Embodiment 3: As shown in FIG. 4, FIG. 5 and FIG. 6, in this embodiment, the bottom shell wind wall comprises a bottom shell upper wind wall 13 and a bottom shell left wind wall 12, and the fan 7 is disposed at an intersecting end of the bottom wind inlet sides of the bottom shell The fan lower cover 2 is connected to the bottom casing upper wind wall 13 and the other side is connected to the bottom casing left wind wall 12. The bottom casing upper wind wall 13, the fan lower cover 2, and the bottom casing left wind wall 12 are connected to each other on the bottom casing 1. The complete isolation strip divides the bottom case 1 into two parts, one side is the air inlet area, the other side is the air outlet area, and the middle frame 5 is correspondingly disposed with the middle frame upper wind wall 51 and the middle frame left wind wall 52, the middle frame 5 When the bottom case 1 is covered, the middle frame wind wall and the bottom case wind wall correspond to each other and are sealed, and the bottom case 1, the bottom case upper wind wall 13, the bottom case left wind wall 12, the fan lower cover 2, the middle frame upper wind wall 51 The middle frame left wind wall 52, the fan upper cover 3, the middle frame cover 53, the reel 4, and the panel 6 cooperate to separate the internal space of the induction cooker into an air inlet zone and an air outlet zone.

Embodiment 4: As shown in FIG. 7, 8, 9, 10, 11, 12, and 13, in the embodiment, the fan upper cover 3 includes an upper cover panel 31, a middle frame sealing strip 32, a reel sealing strip 33, and a seal. The baffle 34, the middle frame sealing strip 32, the reel sealing strip 33, the sealing baffle 34 are upwardly raised higher than the upper cover panel 31, and the middle frame sealing strip 32 and the middle frame cover 53 are attached to each other, and the reel sealing strip 33 is attached. The wire reel 4 is attached to each other, and the sealing baffle 34 is disposed between the middle frame sealing strip 32 and the reel sealing strip 33 to isolate the two sealing strips. The inside of the induction cooker is sealed by the bottom case 1, the upper shell upper wind wall 13, the fan lower cover 2, the bottom shell left wind wall 12, the middle frame upper wind wall 51, the middle frame cover 53, the middle frame sealing strip 32, the reel sealing strip 33, and the sealing The baffle 34, the upper cover panel 32, and the middle frame left wind wall 52 are partitioned into two parts, and the cooling air enters the induction cooker and is blocked by the isolation belt formed by these components, and only passes through the upper cover panel 31 and the middle frame cover 53. The passage between the middle frame sealing strip 32, the sealing baffle 34, the reel sealing strip 33, and the reel 4 enters the fan 7, and then flows from the fan 7 to the outlet area to cool the induction cooker components. The structure of the middle frame sealing strip 32, the sealing baffle 34, and the reel sealing strip 33 can be variously designed in different shapes.

Embodiment 5: As shown in FIG. 13, in this embodiment, a coil wind wall 41 is further disposed around the coil 4, and the coil wind wall 41 and the sealing baffle 34 are attached to each other to further ensure the air inlet area and the outlet. The isolation of the wind zone.

Embodiment 6: In this embodiment, the fan 7 is a backward vane centrifugal fan without a volute.

Embodiment 7 In this embodiment, the fan upper cover 3 and the fan lower cover 2 are disposed according to the volute curve of the fan 7 fan.

Embodiment 8: As shown in FIG. 14, in this embodiment, the air inlet and the air outlet are elongated holes, so that the amount of air entering and exiting is larger.

Embodiment 9 In this embodiment, the fan is axially ventilated and radially exhausted.

Embodiment 10: In this embodiment, the fan is provided with a cushion rubber pad. The cushion can reduce noise.

Further, it should be noted that the specific embodiments described in the present specification may have zeros, shape of components, names taken, and the like. Equivalent or simple changes made to the structures, features and principles of the present invention are included in the scope of the invention. A person skilled in the art can make various modifications or additions to the specific embodiments described or in a similar manner, without departing from the scope of the invention or the scope defined by the claims. All should fall within the scope of protection of the present invention.

Claims

An induction cooker having a high heat dissipation air passage, comprising: a bottom case, a middle frame, a panel, a fan and a wire reel provided from the bottom up; the bottom case is respectively provided with an air inlet and an air outlet a bottom shell wind wall is disposed at a bottom thereof; the fan is disposed on the bottom shell, and a fan lower cover and a fan upper cover are respectively disposed on one side and the upper side, and the fan lower cover and the bottom shell wind wall are connected with the bottom case The wind wall together form an isolation belt; the middle frame cover is disposed on the bottom shell and is provided with a middle frame wind wall at a position corresponding to the bottom shell wind wall, and the middle frame is further provided with a middle frame cover; the line The disk is disposed above the fan, and the top cover of the fan is respectively tightly attached to the wire reel and the middle frame cover, and a passage is provided between the middle frame cover and the fan for the cooling air to enter the fan; the panel cover is disposed in the middle Above the frame and the reel, the bottom shell, the bottom shell wind wall, the middle frame wind wall, the middle frame cover, the fan lower cover, the fan upper cover, the reel, and the panel cooperate to separate the internal space of the induction cooker into the air inlet area and Outer wind zone.
The induction cooker having a high heat dissipation air passage according to claim 1, wherein the two connected sides of the bottom case are air inlets, and the corresponding two side surfaces are air outlets.
The induction cooker having a high heat dissipation air passage according to claim 2, wherein the bottom casing wind wall comprises a bottom shell upper wind wall and a bottom shell left wind wall, and the fan lower cover has a windward upper end and a bottom shell respectively The wall and the bottom shell are connected to the left wind wall, and the middle frame wind wall is correspondingly disposed as a middle frame upper wind wall and a middle frame left wind wall, and the fan is disposed at one end of the intersection of the two inlet side surfaces of the bottom case, the bottom case The bottom shell upper wind wall, the bottom shell left wind wall, the middle frame upper wind wall, the middle frame left wind wall, the middle frame cover, the fan lower cover, the fan upper cover, the coil plate and the panel cooperate to separate the internal space of the induction cooker into the inlet air District and outlet area.
The induction cooker having a high heat dissipation air passage according to claim 3, wherein the fan upper cover comprises an upper cover panel, a wire spool sealing strip, a sealing baffle, a middle frame sealing strip, a wire disc sealing strip, The sealing baffle and the middle frame sealing strip are higher than the upper cover panel, the middle frame sealing strip and the middle frame sealing plate are sealingly connected, the reel sealing strip is connected with the reel sealing, and the sealing baffle is located in the middle frame Between the sealing strip and the wire sealing strip, the bottom shell, the bottom shell upper wind wall, the bottom shell left wind wall, the middle frame upper wind wall, the middle frame left wind wall, the middle frame cover, the middle frame sealing strip, the sealing baffle The wire gasket, the wire reel and the panel cooperate to separate the internal space of the induction cooker into an air inlet zone and an air outlet zone.
The induction cooker having a high heat dissipation air passage according to claim 4, wherein a wire wind wall is further disposed around the wire reel, and the reel wind wall and the sealing baffle are attached.
The induction cooker having a high heat dissipation duct according to any one of claims 1 to 5, wherein the fan is a backward vane centrifugal fan having no volute.
The induction cooker with a high heat dissipation air duct according to any one of claims 1 to 5, wherein the fan upper cover and the fan lower cover are disposed according to a volute curve of the fan fan.
The induction cooker having a high heat dissipation air passage according to any one of claims 1 to 5, wherein the air inlet is an elongated hole-like structure.
The induction cooker having a high heat dissipation air passage according to any of claims 1-5, wherein the fan is axially ventilated and radially ventilated.
The induction cooker having a high heat dissipation air passage according to any of claims 1-5, wherein the fan is provided with a cushion rubber pad.